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WO2023153705A1 - Grinder disk retaining device - Google Patents

Grinder disk retaining device Download PDF

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Publication number
WO2023153705A1
WO2023153705A1 PCT/KR2023/001440 KR2023001440W WO2023153705A1 WO 2023153705 A1 WO2023153705 A1 WO 2023153705A1 KR 2023001440 W KR2023001440 W KR 2023001440W WO 2023153705 A1 WO2023153705 A1 WO 2023153705A1
Authority
WO
WIPO (PCT)
Prior art keywords
disk
grinder
disk fixing
embossed
support plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2023/001440
Other languages
French (fr)
Korean (ko)
Inventor
최윤석
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2023153705A1 publication Critical patent/WO2023153705A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/003—Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools

Definitions

  • the present invention relates to a grinder disk holding device, and more particularly, to a grinder disk holding device that prevents a disc holding holder from being separated from the disc holding device during cutting or polishing operations while allowing easy disk replacement.
  • a hand grinder is a tool used to cut metal workpieces or structures or grind the surface smoothly.
  • a wheel having a cutting blade or polishing blade, that is, a disk, is fastened, and a cutting or polishing operation is performed while rotating a rotary shaft at a high speed using a motor or an air compressor.
  • the disk mounted on the grinder is made of a disk shape, and a mounting hole is formed in the center to be fixed to the rotation axis of the grinder.
  • a method of simply fixing using a nut was used, but a method of fixing using a nut is a disc It was possible only by using a tool when installing or removing the .
  • the applicant of the present invention provides an elastic part that can move up and down in the swinging motion part, fixes the disk with one touch by the elastic restoring force of the elastic part, and presses the surface of the disk to separate it with one touch when separating in the opposite way.
  • the polishing operation is performed only when the surface of the workpiece is pressed with strong force to smooth the unprocessed part or the rough surface after the first processing is completed.
  • vibration occurs in the fixed state of the disk, and due to this, the fixed state is unstable and the processing precision is lowered.
  • the present invention is to solve the problems as described above, and an object of the present invention is to form a rotation shaft fastening part in the hole of the body, form a rotation stopper on the outer surface of the body, and embossed locking jaw or intaglio on the inner upper surface of the rotation stopper.
  • a disk fixing device having a locking jaw is provided, a support plate is movably installed on the outer surface of the body of the disk fixing device, a tension adjusting nut is fixed and installed at the bottom of the disk fixing device, and a taper between the supporting plate and the tension adjusting nut is provided.
  • the disc fixing holder By installing a coil spring and inserting into the outer circumferential surface of the body, and installing a disc fixing holder that inserts and engages the inner circumferential surface with the embossed or negative latch, the disc fixing holder can be easily fixed to the disc fixing device with one touch.
  • a coil spring and inserting into the outer circumferential surface of the body
  • a disc fixing holder that inserts and engages the inner circumferential surface with the embossed or negative latch
  • the disc fixing holder can be easily fixed to the disc fixing device with one touch.
  • it is possible to prevent shaking of the disc fixed to the disc holder due to strong vibration acting on the grinder, enabling accurate and safe grinding work. It prevents the disc fixing holder from being unwound and detached from the disc fixing device that cannot withstand the restoring force, and the structure of the disc fixing device is simplified to slip so that commercial discs can be used interchangeably with the grinder.
  • the grinder disk fixing device includes a body having a hole through which the upper and lower parts pass through the center, and a grinder rotation shaft or a tension regulator is installed on the inner circumferential surface of the hole of the body.
  • a rotation shaft fastening part fastened in a spiral manner is formed, and 2 to 4 rotation stop protruding protruding jaws are formed on the outer surface of the body, and the rotation stop protrusion is formed downward on the inner upper surface of the rotation stop jaw.
  • a disk fixing device formed with a jaw; a support plate coupled to the outer surface of the body of the disk fixing device so as to be able to move up and down, and positioned at a predetermined distance from the upper inner surface of the rotation stopper; a tension controller which is formed in a structure of a tension adjusting nut or a tension adjusting bolt, is screwed to the bottom of the disk fixing device in a spiral manner, and maintains a state spaced apart from the support plate by a predetermined distance; a tapered coil spring installed between the support plate and the tension adjuster to press the support plate toward the disk fixing device; The central portion is penetrated upward and downward to be inserted into and coupled to the outer circumferential surface of the body, a disk is mounted on the outer surface, and the inner circumferential surface enters between the rotation stopper and is rotated in the direction of the rotation stopper, and the embossed stopper or intaglio by the support plate a disk fixing holder that is pressed in the direction of the locking jaw and inserted into
  • the disk fixing holder enters between the rotation stopping jaws on the inner circumferential surface and is located directly below the rotation stopping jaws, and is symmetrical with the embossed or negative engaging jaws on one side of the upper surface. It is formed, characterized in that a negative holder formed with an embossed jaw or an embossed holder formed with an embossed jaw that is inserted into the embossed jaw or negative jaw.
  • the disk fixing holder forms a recessed depth of the engraved stopper or a protruding height of the embossed stopper within 0.3mm to 2.0mm, the number of which is the embossed stopper or It is characterized in that it is formed of 2 to 4 pieces in proportion to the number of intaglio locking jaws.
  • the fixing device of the grinder since the fixing device has a simple configuration, manufacturing can be simplified, and the assembly structure is made step by step, providing ease of assembly, and fastening to the rotating fastening part of the disk fixing device. Since the rotating shaft of the grinder is exposed on the upper part of the disc fixing device, it can be used interchangeably with a dedicated disc as well as a general-purpose disc, and the fixing method of the disc can be easily fixed with one touch. By preventing the shaking of the abrasive disc caused by strong vibration, the polishing and cutting work on the surface of the workpiece is performed accurately, and the rotation balance is improved to increase the lifespan and cutting performance, and at the same time, precision work can be safely performed.
  • FIG. 1 is a view showing a grinder disk fixing device according to a first embodiment of the present invention.
  • FIG. 2 is a side cross-sectional view of a grinder disc fixing device according to a first embodiment of the present invention.
  • FIG 3 is a view showing a disk holding device of a grinder disk holding device according to the present invention.
  • FIG. 4 is a view showing another embodiment of the disc holding device of the grinder disc holding device according to the present invention.
  • FIG. 5 is a view showing a disk fixing holder of a grinder disk fixing device according to a first embodiment of the present invention.
  • FIG. 6 is a view showing a support plate of a grinder disk fixing device according to the present invention.
  • FIG. 7 is a view showing a grinder disk fixing device according to a second embodiment of the present invention.
  • FIG. 8 is a side cross-sectional view of a grinder disc holder according to a second embodiment of the present invention.
  • FIG. 9 is a view showing a disk fixing holder of a grinder disk fixing device according to a second embodiment of the present invention.
  • the grinder disk holding device is composed of a disk holding device 30, a support plate 50, a tension regulator 70, a coil spring 60, and a disk holding holder 20. do.
  • the disk fixing device 30 has a body 30A having a hole 30B penetrating upwards and downwards in a central portion thereof, and a grinder rotating shaft 40 or tension control is provided on the inner circumferential surface of the hole 30B of the body 30A.
  • a rotation shaft fastening part 30-1 for fastening the bolt 70-2 in a spiral manner is formed, and two to four protruding rotation stoppers 30-2 are formed on the outer surface of the body 30A, An embossed engaging jaw 30-3B protruding downward or a negative engaging jaw 30-3A recessed upward is formed on the inner upper surface of the rotation stopper 30-2.
  • the body 30A is formed in a cylindrical shape and allows the grinder rotating shaft 40 to be inserted into the hole 30B.
  • the diameter of the hole 30B is preferably proportional to the diameter of the grinder rotating shaft 40 .
  • the rotary shaft fastening part 30-1 allows the grinder rotary shaft 40 to be fastened in a spiral manner, thereby preventing the grinder rotary shaft 40 from being separated from within the hole 30B.
  • the rotation stopper 30-2 enters the embossed holder 20-1B or the intaglio holder 20-1A of the disk fixing holder 20 therebetween, and the embossed holder 20-1B directly below. Alternatively, the intaglio holder 20-1A is allowed to be positioned.
  • the rotation stopper 30-2 blocks the disc fixing holder 20 from being separated from the disc fixing device 30.
  • the number of rotation stoppers 30-2 is proportional to the number of embossed holders 20-1B or intaglio holders 20-1A of the disk fixing holder 20.
  • the rotation stopper 30-2 is formed in an “L” shape so that the disk fixing holder 20 is hooked and fixed.
  • the rotation stopper 30-2 is supported at its lower end so as to be depressed in the direction of the body 30A, and extends downward to allow the support plate guide groove 50-1 to be inserted. -4) to further form
  • the guide part 30-4 guides the upward and downward movement of the support plate guide groove 50-1.
  • the embossed jaw 30-3B or the negative jaw 30-3A is inserted into the negative jaw 20-2A or the embossed jaw 20-2B of the disk fixing holder 20, and the The disk fixing holder 20 fastened directly below the rotation stopper 30-2 is rotated in the opposite direction within the rotation stopper 30-2, preventing separation and separation.
  • the embossed stopper 30-3B is inserted into the concave stopper 20-2A of the disk fixing holder 20 and is engaged with the concave stopper 20-2A.
  • the negative stopper 30-3A is inserted and coupled into the embossed stopper 20-2B of the disk fixing holder 20, and is engaged and fixed to the embossed stopper 20-2B.
  • the protruding height of the embossed jaw 30-3B or the recessed depth of the negative jaw 30-3A is proportional to the height of the negative jaw 20-2A or the embossed jaw 20-2B. desirable.
  • the disk fixing device 30 includes two to four rotation stoppers 30-2 and two to four concave stoppers 30-3A or embossed stoppers 30-3B, and the rotation stopper 30 -2) and the number of intaglio locking jaws 30-3A or embossed locking jaws 30-3B selects the quantity provided by the force of driving rotational force.
  • the support plate 50 is movably coupled to the outer surface of the body 30A of the disk fixing device 30, and is spaced apart from the upper inner surface of the rotation stopper 30-2 by a predetermined distance.
  • the support plate 50 is pushed upward by the tapered coil spring 60 and presses the disk fixing holder 20 in the direction of the rotation stopper 30-2.
  • the negative stop 20-2A or the embossed stop 20-2B of the disk fixing holder 20 is the embossed stop 30-3B or the intaglio stopper 30-3B of the disk fixing device 30. Press the disk fixing holder 20 so that it is inserted into the locking jaw 30-3A.
  • the support plate 50 is formed relatively larger than the diameter of the outer surface of the body 30A of the disk fixing device 30 to support the disk fixing holder 20 .
  • the support plate 50 is spaced apart from the rotation stopper 30-2 by a predetermined distance, and guides the disk fixing holder 20 to forcefully enter between the support plate 50 and the rotation stopper 30-2. .
  • the support plate 50 is inserted into and coupled to the guide part 30-4 of the disk holding device 30 on the inner circumferential surface, and the support plate guide groove 50-1 moves up and down along the guide part 30-4. ) to form
  • the support plate guide groove 50-1 is formed through a relatively thinner thickness than the projection thickness of the rotation stopper 30-2 of the disk fixing device 30, and is caught on the lower end of the guide part 30-4.
  • the upper edge of the support plate 50 is caught on the lower end of the guide part 30-4 of the disk fixing device 30, and maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.
  • the tension adjuster 70 is formed in the structure of a tension adjusting nut 70-1, and is screwed to the lower end of the disk fixing device 30 in a spiral manner to maintain a state spaced apart from the support plate 50 by a predetermined distance.
  • the tension adjuster 70 selects and fastens the tension adjusting nut 70-1 corresponding to the electric grinder method to the lower end of the disk fixing device 30 in a spiral manner.
  • the tension adjusting nut 70-1 is screwed to the lower outer circumferential surface of the disk fixing device in a spiral manner, and its central portion penetrates to communicate with the rotating shaft fastening portion 30-1 of the disk fixing device 30, and to the central portion. It guides the grinder rotating shaft 40 to pass through.
  • the tension controller 70 is rotationally fastened to the disk fixing device 30 in a spiral manner, and adjusts the compressive force of the tapered coil spring 60 pressing the support plate 50 .
  • the tapered coil spring 60 is installed between the support plate 50 and the tension regulator 70 and presses the support plate 50 toward the disk fixing device 30 .
  • the tapered coil spring 60 preferably has a tapered shape in which the diameter gradually narrows from the top to the bottom.
  • the tapered coil spring 60 presses the support plate 50 upward while being pressed upward by the tension controller 70 .
  • the disk fixing holder 20 is inserted and coupled to the outer circumferential surface of the body 30A by penetrating the central portion upward and downward, mounting the disk 10 on the outer circumferential surface, and entering the inner circumferential surface between the rotation stop jaws 30-2. It is rotated in the direction of the rotation stopper 30-2, and is pressed in the direction of the embossed protrusion 30-3B or the negative protrusion 30-3A by the support plate 50, and the embossed protrusion 30 -3B) or inserted into the intaglio locking jaw (30-3A).
  • the disk fixing holder 20 is rotated in a direction opposite to the rotating direction of the grinder rotational shaft 40 in a state where it enters between the rotation stopping jaws 30-2, and is directly below the rotation stopping jaw 30-2. is located in
  • the disk fixing holder 20 is rotated in the direction of the rotation stopper 30-2 while pressing the support plate 50 downward, and then the rotation stopper 30 by the pressing force of the support plate 50. -2) It is inserted and fastened directly below, and is caught and fixed to the rotation stop jaw 30-2.
  • the disk fixing holder 20 is inserted into the rotation stopping jaw 30-2 and is prevented from being rotated in the forward and reverse directions within the rotation stopping jaw 30-2.
  • the disc fixing holder 20 is rotated to correspond to the direction of the grinder rotation shaft 40 by the disc fixing device 30 rotated integrally with the grinder rotation shaft 40, thereby rotating the disc 10.
  • the disk 10 performs grinding or polishing while being rotated in a forward or reverse direction by the disk fixing holder 20 .
  • the disk fixing holder 20 enters between the rotation stopping jaws 30-2 on the inner circumferential surface and is positioned directly below the rotation stopping jaw 30-2, and the raised engaging jaw 30-3B or Engraving holder 20 formed to be symmetrical with the negative engaging jaw 30-3A and having a negative jaw 20-2A inserted into the embossed jaw 30-3B or the negative jaw 30-3A.
  • -1A) or an embossed holder (20-1B) having an embossed stopper (20-2B) is formed.
  • the embossed holder 20-1B or the intaglio holder 20-1A is formed so as to cross with the rotation stopping jaw 30-2 and enters between the rotation stopping jaws 30-2.
  • the number of the embossed holders 20-1B or the intaglio holders 20-1A is formed in proportion to the number of the rotation stopping jaws 30-2.
  • the intaglio stop (20-2A) of the intaglio holder (20-1A) allows the embossed protrusion (30-3B) of the disk holding device (30) to be inserted and caught.
  • the embossed stop (20-2B) of the embossed holder (20-1A) is inserted into the concave stop (30-3A) of the disk fixing device (30).
  • the disk fixing holder 20 forms a recessed depth of the concave stopper 20-2A or a protruding height of the embossed stopper 20-2B within 0.3mm to 2.0mm, the number of which is the embossed stopper (30-3B) or intaglio locking jaws (30-3A) are formed in 2 to 4 pieces in proportion to the number.
  • the grinder disk fixing device according to the first embodiment of the present invention configured as described above is used as follows.
  • the grinder disc fixing device can be used for an electric or pneumatic grinder, and will be described below based on an electric grinder (hereinafter referred to as a grinder), and accordingly, a tension adjusting nut (70- 1)
  • a tension adjusting nut 70- 1
  • the structure of the tension regulator 70 will be described as an example.
  • the tension regulator 70, the tapered coil spring 60, and the support plate 50 are sequentially inserted into the grinder rotating shaft 40, and then the guide portion 30- formed on the outer surface of the body 30A of the disk fixing device 30 4) is inserted into the support plate guide groove 50-1, and the rotating shaft fastening part 30-1 formed in the center of the disk holding device 30 is fastened to the rotating shaft 40 of the grinder, and then the disk holding device 30
  • the tension regulator 70 is fastened to the threaded part 30-5 formed on the lower outer circumferential surface
  • the disc fixing device 30 is mounted on the grinder.
  • the guide part 30-4 is inserted and coupled along the support plate guide groove 50-1, and the lower end of the rotation stopper 30-2 is caught around the support plate guide groove 50-1.
  • the support plate 50 maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.
  • the tension control of the disk 10 is adjusted by loosening or tightening the tension controller 70, and at this time, the tension adjusting nut 70 serves as a stopper, and the tension adjusting nut 70-1 By restricting abnormal movement, a distance "B" is maintained between the support plate 50 and the rotation stopper 30-2 to correspond to the thickness of the disk fixing holder 20.
  • the disk fixing device 30 is inserted into the support plate 50 to prevent the disk fixing device 30 from rotating, and only the tension controller 70 rotates to adjust the tension.
  • the tension control width between the support plate 50 and the tension controller 70 is formed to have a gap of "A” or more and “B” or less, and the width of "A” is the width of the disk fixing holder 20. It should be relatively wider than the depression depth of the concave stop (20-2A) or the protruding height of the embossed stop (20-2B).
  • the distance between the tension controller 70 and the support plate 50 should be "A" or more.
  • the disk fixing holder 20 is inserted into the disk fixing device 30 and pressed downward, the support plate 50 is pushed downward along the guide part 30-4 and compresses the tapered coil spring 60. , At this time, when the disk fixing holder 20 is moved downward by the compression amount of the tapered coil spring 60 and is positioned at a position relatively lower than the height of the rotation stopper 30-2, the disk fixing device ( 30) and the support plate 50 are widened by "B".
  • the embossed holder 20-1B or the intaglio holder 20-1A of the disc fixing holder 20 enters between the rotation stopping jaws 30-2 of the disc fixing device 30, and the disc fixing holder (20) is fastened to the disk fixing device (30).
  • the guide part 30-4 of the disk fixing device 30 guides the up and down movement of the support plate guide groove 50-1, so that the support plate 50 moves up and down the disk fixing device 30. ) is moved up and down based on the body 30A.
  • the distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is “A”, and the disk fixing device 30 is “A”.
  • the support plate 50 is pressed by the holder 20, the separation distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is "B" will be.
  • the disk fixing holder 20 is pressed and a space "B" in which the disk fixing holder 20 can be mounted is formed between the support plate 50 and the guide fixing device 30, the disk is fixed.
  • the support plate is raised upward by the restoring force of the tapered coil spring 60 and the disk fixing holder 20 is lifted.
  • the negative stop 20-2A or the embossed stop 20-2B formed on the disk fixing holder 20 rotates. It is inserted into the embossed jaw 30-3B or the negative jaw 30-3A formed in the stopper 30-2.
  • the support plate 50 moves upward by the restoring force of the tapered coil spring 60, and accordingly, the support plate guide groove 50-1 moves upward along the guide part 30-4. .
  • the disk fixing holder 20 is moved upward by the upward movement of the support plate 50, and at this time, the negative stopper 20-2A is inserted into the embossed stopper 30-3B or caught.
  • the embossed jaw 20-2B is inserted into and caught by the negative latch 30-3A, and the disk fixing holder 20 is closely engaged under the rotation stop jaw 30-2.
  • the support plate 50 presses the disk fixing holder 20 upward by the tension of the tapered coil spring 60 restored to its original state, so that the disk fixing holder 20 is the rotation stopper ( 30-2) It is mounted so as to be in close contact directly below, and at this time, between the disk fixing device 30 and the support plate 50, a disk 10 having a thickness proportional to the "A" interval is mounted.
  • the disc fixing device 30 is integrated by the driving force of the drive motor (not shown). As it rotates, rotational force is transmitted to the disk 10, and at this time, the disk 10 is cut or polished.
  • the disk fixing holder 20 The negative stopper (20-2A) or the embossed stopper (20-2B) is inserted into the embossed stopper (30-3B) or the negative stopper (30-3A) of the disk fixing device 30 and maintains the jammed state. By doing so, it is possible to prevent the disk fixing holder 20 from being separated from the rotation stopper 30-2 in advance.
  • the disk fixing device 30 has a body 30A having a hole 30B penetrating upwards and downwards in a central portion thereof, and a grinder rotating shaft 40 or tension control is provided on the inner circumferential surface of the hole 30B of the body 30A.
  • a rotation shaft fastening part 30-1 for fastening the bolt 70-2 in a spiral manner is formed, and two to four protruding rotation stoppers 30-2 are formed on the outer surface of the body 30A, An embossed engaging jaw 30-3B protruding downward or a negative engaging jaw 30-3A recessed upward is formed on the inner upper surface of the rotation stopper 30-2.
  • the body 30A may allow a rotating shaft (not shown) formed in the tension adjusting bolt 70-2 of the tension adjusting device 70 to be fastened into the hole 30B.
  • the diameter of the hole 30B is preferably proportional to the diameter of the rotating shaft (unsigned) formed in the tension adjusting bolt 70-2 of the tension adjusting device 70.
  • the rotating shaft fastening part 30-1 may allow the rotating shaft (not shown) formed in the tension adjusting bolt 70-2 of the tension adjusting device 70 to be fastened in a spiral manner.
  • the rotation stopper 30-2 enters the embossed holder 20-1B or the intaglio holder 20-1A of the disk fixing holder 20 therebetween, and the embossed holder 20-1B directly below. Alternatively, the intaglio holder 20-1A is allowed to be positioned.
  • the rotation stopper 30-2 blocks the disc fixing holder 20 from being separated from the disc fixing device 30.
  • the number of rotation stoppers 30-2 is proportional to the number of embossed holders 20-1B or intaglio holders 20-1A of the disk fixing holder 20.
  • the rotation stopper 30-2 is formed in an “L” shape so that the disk fixing holder 20 is hooked and fixed.
  • the rotation stopper 30-2 is supported at its lower end so as to be depressed in the direction of the body 30A, and extends downward to allow the support plate guide groove 50-1 to be inserted. -4) to further form
  • the guide part 30-4 guides the upward and downward movement of the support plate guide groove 50-1.
  • the embossed jaw 30-3B or the negative jaw 30-3A is inserted into the negative jaw 20-2A or the embossed jaw 20-2B of the disk fixing holder 20, and the The disk fixing holder 20 fastened directly below the rotation stopper 30-2 is rotated in the opposite direction within the rotation stopper 30-2, preventing separation and separation.
  • the embossed stopper 30-3B is inserted into the concave stopper 20-2A of the disk fixing holder 20 and is engaged with the concave stopper 20-2A.
  • the negative stopper 30-3A is inserted and coupled into the embossed stopper 20-2B of the disk fixing holder 20, and is engaged and fixed to the embossed stopper 20-2B.
  • the protruding height of the embossed jaw 30-3B or the recessed depth of the negative jaw 30-3A is proportional to the height of the negative jaw 20-2A or the embossed jaw 20-2B. desirable.
  • the disk fixing device 30 includes two to four rotation stoppers 30-2 and two to four concave stoppers 30-3A or embossed stoppers 30-3B, and the rotation stopper 30 -2) and the number of intaglio locking jaws 30-3A or embossed locking jaws 30-3B selects the quantity provided by the force of driving rotational force.
  • the support plate 50 is movably coupled to the outer surface of the body 30A of the disk fixing device 30, and is spaced apart from the upper inner surface of the rotation stopper 30-2 by a predetermined distance.
  • the support plate 50 is pushed upward by the tapered coil spring 60 and presses the disk fixing holder 20 in the direction of the rotation stopper 30-2.
  • the negative stop 20-2A or the embossed stop 20-2B of the disk fixing holder 20 is the embossed stop 30-3B or the intaglio stopper 30-3B of the disk fixing device 30. Press the disk fixing holder 20 so that it is inserted into the locking jaw 30-3A.
  • the support plate 50 is formed relatively larger than the diameter of the outer surface of the body 30A of the disk fixing device 30 to support the disk fixing holder 20 .
  • the support plate 50 is spaced apart from the rotation stopper 30-2 by a predetermined distance, and guides the disk fixing holder 20 to forcefully enter between the support plate 50 and the rotation stopper 30-2. .
  • the support plate 50 is inserted into and coupled to the guide part 30-4 of the disk holding device 30 on the inner circumferential surface, and the support plate guide groove 50-1 moves up and down along the guide part 30-4. ) to form
  • the support plate guide groove 50-1 is formed through a relatively thinner thickness than the projection thickness of the rotation stopper 30-2 of the disk fixing device 30, and is caught on the lower end of the guide part 30-4.
  • the upper edge of the support plate 50 is caught on the lower end of the guide part 30-4 of the disk fixing device 30, and maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.
  • the tension adjuster 70 is formed in the structure of a tension adjusting bolt 70-2, and is screwed to the lower end of the disk fixing device 30 in a spiral manner, and maintains a state spaced apart from the support plate 50 by a predetermined distance.
  • the tension adjuster 70 selectively fastens the tension adjusting bolt 70-2 usable for the pneumatic grinder to the lower end of the disk fixing device 30 in a spiral manner.
  • the tension adjusting bolt 70-2 is fastened to the rotating shaft fastening part 30-1 of the disk fixing device 30, and guides the grinder to be fastened to the lower surface thereof.
  • the tension adjusting bolt 70-2 is formed to be symmetrical to each other on the upper and lower surfaces, and may form a rotation shaft (unsigned) fastened to the rotation shaft fastening part 30-1 of the disk fixing device 30.
  • the tension controller 70 adjusts the compressive force of the tapered coil spring 60 pressing the support plate 50 while being rotated and fastened to the disk fixing device 30 in a spiral manner.
  • the tapered coil spring 60 is installed between the support plate 50 and the tension regulator 70 and presses the support plate 50 toward the disk fixing device 30 .
  • the tapered coil spring 60 preferably has a tapered shape in which the diameter gradually narrows from the top to the bottom.
  • the tapered coil spring 60 presses the support plate 50 upward while being pressed upward by the tension controller 70 .
  • the disk fixing holder 20 is inserted and coupled to the outer circumferential surface of the body 30A by penetrating the central portion upward and downward, mounting the disk 10 on the outer circumferential surface, and entering the inner circumferential surface between the rotation stop jaws 30-2. It is rotated in the direction of the rotation stopper 30-2, and is pressed in the direction of the embossed protrusion 30-3B or the negative protrusion 30-3A by the support plate 50, and the embossed protrusion 30 -3B) or inserted into the intaglio locking jaw (30-3A).
  • the disk fixing holder 20 is rotated in a direction opposite to the rotating direction of the grinder rotational shaft 40 in a state where it enters between the rotation stopping jaws 30-2, and is directly below the rotation stopping jaw 30-2. is located in
  • the disk fixing holder 20 is rotated in the direction of the rotation stopper 30-2 while pressing the support plate 50 downward, and then the rotation stopper 30 by the pressing force of the support plate 50. -2) It is inserted and fastened directly below, and is caught and fixed to the rotation stop jaw 30-2.
  • the disk fixing holder 20 is inserted into the rotation stopping jaw 30-2 and is prevented from being rotated in the forward and reverse directions within the rotation stopping jaw 30-2.
  • the disc fixing holder 20 is rotated to correspond to the direction of the grinder rotation shaft 40 by the disc fixing device 30 rotated integrally with the grinder rotation shaft 40, thereby rotating the disc 10.
  • the disk 10 performs grinding or polishing while being rotated in a forward or reverse direction by the disk fixing holder 20 .
  • the disk fixing holder 20 enters between the rotation stopping jaws 30-2 on the inner circumferential surface and is positioned directly below the rotation stopping jaw 30-2, and the raised engaging jaw 30-3B or Engraving holder 20 formed to be symmetrical with the intaglio holding jaw 30-3A and having the embossed jaw 20-2A inserted into the embossed jaw 30-3B or the negative jaw 30-3A.
  • -1A) or an embossed holder (20-1B) having an embossed stopper (20-2B) is formed.
  • the embossed holder 20-1B or the intaglio holder 20-1A is formed so as to cross with the rotation stopping jaw 30-2 and enters between the rotation stopping jaws 30-2.
  • the number of the embossed holders 20-1B or the intaglio holders 20-1A is formed in proportion to the number of the rotation stopping jaws 30-2.
  • the intaglio stop (20-2A) of the intaglio holder (20-1A) allows the embossed protrusion (30-3B) of the disk holding device (30) to be inserted and caught.
  • the embossed stop (20-2B) of the embossed holder (20-1A) is inserted into the concave stop (30-3A) of the disk fixing device (30).
  • the disk fixing holder 20 forms a recessed depth of the concave stopper 20-2A or a protruding height of the embossed stopper 20-2B within 0.3mm to 2.0mm, the number of which is the embossed stopper (30-3B) or intaglio locking jaws (30-3A) are formed in 2 to 4 pieces in proportion to the number.
  • the grinder disk holding device according to the second embodiment of the present invention configured as described above is used as follows.
  • a pneumatic grinder hereinafter referred to as a grinder
  • the tension regulator 70 having a tension control bolt 70-2 structure that enables the grinder to be fastened will be described as an example.
  • the tension regulator 70, the tapered coil spring 60, and the support plate 50 are sequentially inserted into the grinder rotating shaft 40, and then the guide portion 30- formed on the outer surface of the body 30A of the disk fixing device 30 4) is inserted into the support plate guide groove 50-1, and the tension adjuster 70 is fastened to the rotating shaft fastening part 30-1 formed in the center of the disk fixing device 30, and then the tension adjuster 70 is attached to the grinder.
  • the lower surface is fastened, the mounting of the disk holding device 30 to the grinder is completed.
  • the tension regulator 70 is formed in the structure of a tension adjusting bolt 70-2, and by forming rotation shafts (unsigned) symmetrical to each other on the upper and lower surfaces, the rotation shaft (unsigned) formed on the upper surface is fastened to the rotation shaft. While fastening to the part 30-1, by fastening the rotating shaft (unsigned) formed on the lower surface to the grinder, the disk fixing device 30 is mounted on the grinder.
  • the body By fastening the nod bolt 80 between the hole 30B of (30A) and the rotating shaft (unsigned) of the tension adjuster 70, the rotating shaft (unsigned) of the tension adjuster 70 is loosened. prevent.
  • the guide part 30-4 is inserted and coupled along the support plate guide groove 50-1, and the lower end of the rotation stopper 30-2 is caught around the support plate guide groove 50-1.
  • the support plate 50 maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.
  • the tension control of the disk 10 is adjusted by loosening or tightening the tension controller 70, and at this time, the tension adjusting bolt 70-2 serves as a stopper, and the tension adjusting bolt 70-2 By restricting movement beyond a predetermined distance, a “B” distance is maintained between the support plate 50 and the rotation stopper 30-2 to correspond to the thickness of the disk fixing holder 20.
  • the disk fixing device 30 is inserted into the support plate 50 to prevent the disk fixing device 30 from rotating, and only the tension controller 70 rotates to adjust the tension.
  • the tension control width between the support plate 50 and the tension controller 70 is formed to have a gap of "A” or more and “B” or less, and the width of "A” is the width of the disk fixing holder 20. It should be relatively wider than the depression depth of the concave stop (20-2A) or the protruding height of the embossed stop (20-2B).
  • the distance between the tension controller 70 and the support plate 50 should be "A" or more.
  • the disk fixing holder 20 is inserted into the disk fixing device 30 and pressed downward, the support plate 50 is pushed downward along the guide part 30-4 and compresses the tapered coil spring 60. , At this time, when the disk fixing holder 20 is moved downward by the compression amount of the tapered coil spring 60 and is positioned at a position relatively lower than the height of the rotation stopper 30-2, the disk fixing device ( 30) and the support plate 50 are widened by "B".
  • the embossed holder 20-1B or the intaglio holder 20-1A of the disc fixing holder 20 enters between the rotation stopping jaws 30-2 of the disc fixing device 30, and the disc fixing holder (20) is fastened to the disk fixing device (30).
  • the guide part 30-4 of the disk fixing device 30 guides the up and down movement of the support plate guide groove 50-1, so that the support plate 50 moves up and down the disk fixing device 30. ) is moved up and down based on the body 30A.
  • the distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is “A”, and the disk fixing device 30 is “A”.
  • the support plate 50 is pressed by the holder 20, the separation distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is "B" will be.
  • the disk fixing holder 20 is pressed and a space "B" in which the disk fixing holder 20 can be mounted is formed between the support plate 50 and the guide fixing device 30, the disk is fixed.
  • the support plate is raised upward by the restoring force of the tapered coil spring 60 and the disk fixing holder 20 is lifted.
  • the negative stop 20-2A or the embossed stop 20-2B formed on the disk fixing holder 20 rotates. It is inserted into the embossed jaw 30-3B or the negative jaw 30-3A formed in the stopper 30-2.
  • the support plate 50 moves upward by the restoring force of the tapered coil spring 60, and accordingly, the support plate guide groove 50-1 moves upward along the guide part 30-4. .
  • the disk fixing holder 20 is moved upward by the upward movement of the support plate 50, and at this time, the negative stopper 20-2A is inserted into the embossed stopper 30-3B or caught.
  • the embossed jaw 20-2B is inserted into and caught by the negative latch 30-3A, and the disk fixing holder 20 is closely engaged under the rotation stop jaw 30-2.
  • the support plate 50 presses the disk fixing holder 20 upward by the tension of the tapered coil spring 60 restored to its original state, so that the disk fixing holder 20 is the rotation stopper ( 30-2) It is mounted so as to be in close contact directly below, and at this time, between the disk fixing device 30 and the support plate 50, a disk 10 having a thickness proportional to the "A" interval is mounted.
  • the disc fixing device 30 is integrated by the driving force of the drive motor (not shown). As it rotates, rotational force is transmitted to the disk 10, and at this time, the disk 10 is cut or polished.
  • the disk fixing holder 20 The negative stopper (20-2A) or the embossed stopper (20-2B) is inserted into the embossed stopper (30-3B) or the negative stopper (30-3A) of the disk fixing device 30 and maintains the jammed state. By doing so, it is possible to prevent the disk fixing holder 20 from being separated from the rotation stopper 30-2 in advance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A disk retaining holder can be conveniently retained on a disk retaining device by one touch. In addition, it is possible to prevent a disk retained by the disk retaining holder from being shaken by strong vibrations acting on the grinder during a marble grinding operation. Accordingly, an accurate and safe grinding operation can be performed. The disk retaining holder is prevented from being unfastened from the disk retaining device because, if the disk gets stuck in a cutting workpiece, same cannot maintain the position with a restorative force from a spring. The disk retaining device is simplified to have a slim structure such that a commercially available disk can be interchangeably used with the grinder. According to the present invention, the grinder disk retaining device has a simple configuration such that same can be manufactured in a simplified manner. The assembly structure is conducted in a stepwise manner, thereby providing assembly ease. The rotating shaft of the grinder fastened to the rotating fastener of the disk retaining device is exposed to the upper portion of the disk retaining device such that not only a dedicated disk, but also a universal disk can be used interchangeably. The disk can be conveniently retained by one touch. In addition, it is possible to prevent the grinding disk from being shaken by strong vibrations acting on the grinder during a marble grinding operation, for example. Accordingly, the surface of the processing target can be ground and cut accurately. Thus, the rotational balance can be improved, thereby increasing the lifespan and improving the cutting performance, and a precise operation can proceed safely.

Description

그라인더 디스크 고정장치Grinder Disc Fixture

본 발명은 그라인더 디스크 고정장치에 관한 것으로서, 더욱 상세하게는 디스크 교체가 간편하면서도, 절단 또는 연마 작업시 디스크 고정홀더가 디스크 고정장치에서 이탈 분리되는 것을 방지하는 그라인더 디스크 고정장치에 관한 것이다.The present invention relates to a grinder disk holding device, and more particularly, to a grinder disk holding device that prevents a disc holding holder from being separated from the disc holding device during cutting or polishing operations while allowing easy disk replacement.

일반적으로, 핸드 그라인더는 금속가공물이나 구조물 등을 절단하거나 또는 표면을 매끄럽게 연마하기 위하여 사용되는 도구로서, 그라인더의 구조는 본체에 회전축이 마련되어 그 회전축에 가이드고정장치를 장착하여 가이드 고정장치를 이용하여 절단날 또는 연마 날이 구비된 휠 즉 디스크를 체결하고 모터 또는 공기압축기를 이용하여 회전축을 고속으로 회전시키면서 절단 또는 연마작업을 수행할 수 있도록 한다.In general, a hand grinder is a tool used to cut metal workpieces or structures or grind the surface smoothly. A wheel having a cutting blade or polishing blade, that is, a disk, is fastened, and a cutting or polishing operation is performed while rotating a rotary shaft at a high speed using a motor or an air compressor.

특히, 그라인더에 장착되는 디스크는 원판 형상으로 이루어지며 그 중앙에 장착 홀이 형성되어 그라인더의 회전축에 고정되는 것으로 종래에는 단순히 너트를 이용하여 고정되는 방식이 사용되었으나 너트를 이용하여 고정하는 방식은 디스크의 장착이나 탈착시 공구를 이용하여야만 가능하였다.In particular, the disk mounted on the grinder is made of a disk shape, and a mounting hole is formed in the center to be fixed to the rotation axis of the grinder. In the past, a method of simply fixing using a nut was used, but a method of fixing using a nut is a disc It was possible only by using a tool when installing or removing the .

따라서, 최근에 다양한 종류의 디스크 고정장치가 제안된 바 있으나 디스크가 견고하게 고정되지 못하거나 또는 디스크 구조가 지나치게 복잡하기 때문에 사용이 번거로운 문제가 있었다.Accordingly, various types of disc fixing devices have recently been proposed, but they have problems in use because the disc is not firmly fixed or the structure of the disc is too complicated.

본 발명의 출원인은 선회운동부에는 상하로 이동할 수 있는 탄성 부을 마련하여 탄성 부의 탄성 복원력에 의하여 디스크를 원 터치로 고정하고 반대로 분리할 경우에는 디스크의 표면을 눌러서 원터치로 분리할 수 있도록 한 디스크 고정장치를 제안한다.The applicant of the present invention provides an elastic part that can move up and down in the swinging motion part, fixes the disk with one touch by the elastic restoring force of the elastic part, and presses the surface of the disk to separate it with one touch when separating in the opposite way. suggests

그런데, 이러한 탄성 복원력에 의존하는 고정방식은 휨이 발생되거나 속도 저하되었때 절단용 디스크 혹은 연마용 디스크 사용시 역시 문제가 발생할 수 있다.However, in the fixing method relying on the elastic restoring force, a problem may also occur when a cutting disk or an abrasive disk is used when bending occurs or the speed decreases.

즉 연마작업은 1차 가공이 완료된 상태에서 가공이 덜된 부분이나 거친 표면을 매끄럽게 하기 위하여 가공물의 표면에 강한 힘으로 압착시켜야만 표면 연마가 이루어지는데 탄성 복원력에 의한 디스크 원터치 방식은 진동이나 누르는 힘에 의하여 디스크의 고정상태에 진동이 발생하는 문제가 있고 또한 이로 인하여 고정 상태가 불안정하고 가공의 정밀도가 떨어지는 문제가 발생한다.In other words, the polishing operation is performed only when the surface of the workpiece is pressed with strong force to smooth the unprocessed part or the rough surface after the first processing is completed. There is a problem that vibration occurs in the fixed state of the disk, and due to this, the fixed state is unstable and the processing precision is lowered.

그뿐만 아니라 그 구조상 커플러의 구조가 상·하로 길게 구성되므로 높이가 지나치게 높아지므로 그라인더의 회전축이 노출되지 않게 조립되어야 하므로 반드시 전용 디스크만을 사용하여야 하고, 기존의 상용화된 디스크를 활성화할 수 없음으로 범용적으로 사용하는데 한계가 있다.In addition, since the structure of the coupler is long up and down, the height is excessively high, so it must be assembled so that the rotation axis of the grinder is not exposed, so only a dedicated disk must be used. There are limitations to its use.

또한, 요즘 사용하는 전동그라인더의 절단작업시 수명이 점점 낮아짐에 따라 힘이 약해져 절단 공작물과 그라인더 날 디스크 사이에 끼어 스프링의 복원력으로 버티지 못하고 디스크가 탈착하는 현상이 발생된다.In addition, as the lifespan of the electric grinder used these days gradually decreases during the cutting operation, the power is weakened, and the disc is detached without being able to withstand the restoring force of the spring due to being caught between the cutting workpiece and the grinder blade disc.

본 발명은 상술한 바와 같은 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 몸체의 구멍에 회전축 체결부를 형성하고, 몸체 외면에 회전멈춤턱을 형성하며, 회전멈춤턱 내측 상면에 양각걸림턱 또는 음각걸림턱을 형성한 디스크 고정장치를 구비하고, 이 디스크 고정장치의 몸체 외면에 지지판을 승강 이동가능하게 설치하며, 디스크 고정장치 하단에 장력조절너트를 고정 설치하고, 지지판과 장력조절너트 사이에 테이퍼 코일스프링을 설치하며, 몸체 외주면에 삽입 결합되어, 내주면이 양각걸림턱 또는 음각걸림턱에 삽입 걸림되도록 하는 디스크 고정홀더를 설치함으로써, 디스크 고정홀더를 디스크 고정장치에 원터치로 간편하게 고정할 수 있음은 물론 대리석 연마작업시 그라인더에 작용하는 강한 진동에 의한 디스크 고정홀더에 고정된 디스크가 흔들리는 현상 등을 방지할 수 있어, 정확하고 안전한 연마작업 수행이 가능하고, 절단 공작물에 디스크가 끼임되면서, 스프링의 복원력으로 버티지 못하고 디스크 고정홀더가 디스크 고정장치에서 풀림 탈착되는 현상이 방지되며, 디스크 고정장치의 구조가 슬립화 되도록 간소화하여, 그라인더에 상용 디스크를 호환 사용할 수 있다.The present invention is to solve the problems as described above, and an object of the present invention is to form a rotation shaft fastening part in the hole of the body, form a rotation stopper on the outer surface of the body, and embossed locking jaw or intaglio on the inner upper surface of the rotation stopper. A disk fixing device having a locking jaw is provided, a support plate is movably installed on the outer surface of the body of the disk fixing device, a tension adjusting nut is fixed and installed at the bottom of the disk fixing device, and a taper between the supporting plate and the tension adjusting nut is provided. By installing a coil spring and inserting into the outer circumferential surface of the body, and installing a disc fixing holder that inserts and engages the inner circumferential surface with the embossed or negative latch, the disc fixing holder can be easily fixed to the disc fixing device with one touch. Of course, during marble grinding, it is possible to prevent shaking of the disc fixed to the disc holder due to strong vibration acting on the grinder, enabling accurate and safe grinding work. It prevents the disc fixing holder from being unwound and detached from the disc fixing device that cannot withstand the restoring force, and the structure of the disc fixing device is simplified to slip so that commercial discs can be used interchangeably with the grinder.

상기와 같은 본 발명의 목적을 달성하기 위하여, 본 발명에 따른 그라인더 디스크 고정장치는, 중앙부에 상, 하로 관통된 구멍을 형성한 몸체를 구비하고, 상기 몸체의 구멍 내주면에 그라인더 회전축 또는 장력조절기를 나선방식으로 체결하는 회전축 체결부를 형성하며, 상기 몸체 외면에 2개 내지 4개로 돌출 형성된 회전멈춤턱을 형성하고, 상기 회전멈춤턱 내측 상면에 하방으로 돌출 형성됨 양각걸림턱 또는 상방으로 함몰 형성된 음각걸림턱을 형성한 디스크 고정장치와; 상기 디스크고정장치의 몸체 외면에 승강 이동가능하게 결합되어, 상기 회전멈춤턱의 내측 상면에서 정해진 거리 이격되게 위치되는 지지판; 장력조절너트 또는 장력조절볼트 구조로 형성되고, 상기 디스크 고정장치 하단에 나선방식으로 체결되어, 상기 지지판에서 정해진 거리 이격된 상태를 유지하는 장력조절기; 상기 지지판과 상기 장력조절기 사이에 설치되어, 상기 지지판을 상기 디스크 고정장치 방향으로 가압하는 테이퍼 코일스프링; 중앙부가 상, 하로 관통되어 상기 몸체 외주면에 삽입 결합되고, 외면에 디스크를 장착하며, 내주면이 상기 회전멈춤턱 사이로 진입되어 상기 회전멈춤턱 방향으로 회전되되, 상기 지지판에 의해 상기 양각걸림턱 또는 음각걸림턱 방향으로 가압되어, 상기 양각걸림턱 또는 음각걸림턱에 삽입 걸림되는 디스크 고정홀더; 를 구성하여, 그라인더 작업시 공압이나 배터리 동력이 저하되어 구동력이 저하되는 경우나 작업자가 절단이나 연마 작업시 정해진 압력 이상의 힘을 가하여 절단면에 디스크가 끼는 현상이나, 연마 작업시 테이퍼 코일스프링의 장력보다 상대적으로 높은 면압력을 가하여 디스크가 탈착되는 현상을 양각걸림턱 또는 음각걸림턱에 의해 미연에 방지하는 것을 특징으로 한다.In order to achieve the object of the present invention as described above, the grinder disk fixing device according to the present invention includes a body having a hole through which the upper and lower parts pass through the center, and a grinder rotation shaft or a tension regulator is installed on the inner circumferential surface of the hole of the body. A rotation shaft fastening part fastened in a spiral manner is formed, and 2 to 4 rotation stop protruding protruding jaws are formed on the outer surface of the body, and the rotation stop protrusion is formed downward on the inner upper surface of the rotation stop jaw. a disk fixing device formed with a jaw; a support plate coupled to the outer surface of the body of the disk fixing device so as to be able to move up and down, and positioned at a predetermined distance from the upper inner surface of the rotation stopper; a tension controller which is formed in a structure of a tension adjusting nut or a tension adjusting bolt, is screwed to the bottom of the disk fixing device in a spiral manner, and maintains a state spaced apart from the support plate by a predetermined distance; a tapered coil spring installed between the support plate and the tension adjuster to press the support plate toward the disk fixing device; The central portion is penetrated upward and downward to be inserted into and coupled to the outer circumferential surface of the body, a disk is mounted on the outer surface, and the inner circumferential surface enters between the rotation stopper and is rotated in the direction of the rotation stopper, and the embossed stopper or intaglio by the support plate a disk fixing holder that is pressed in the direction of the locking jaw and inserted into the embossed or negative locking jaw; When working with a grinder, the pneumatic or battery power is lowered and the driving force is lowered, or when a worker applies more than a set pressure during cutting or polishing, the disk is caught on the cutting surface, or when the tension of the tapered coil spring is lowered during grinding It is characterized in that a phenomenon in which the disk is detached by applying a relatively high surface pressure is prevented in advance by a positive or negative locking jaw.

본 발명에 따른 그라인더 디스크 고정장치에 있어서, 상기 디스크 고정홀더는, 내주면에 상기 회전멈춤턱 사이로 진입되어 상기 회전멈춤턱 직하방에 위치되되, 상면 일측에 상기 양각걸림턱 또는 음각걸림턱과 대칭되도록 형성되어, 상기 양각걸림턱 또는 음각걸림턱에 삽입 걸림되는 음각멈춤턱이 형성된 음각홀더 또는 양각멈춤턱이 형성된 양각홀더를 형성한 것을 특징으로 한다.In the grinder disk fixing device according to the present invention, the disk fixing holder enters between the rotation stopping jaws on the inner circumferential surface and is located directly below the rotation stopping jaws, and is symmetrical with the embossed or negative engaging jaws on one side of the upper surface. It is formed, characterized in that a negative holder formed with an embossed jaw or an embossed holder formed with an embossed jaw that is inserted into the embossed jaw or negative jaw.

본 발명에 따른 그라인더 디스크 고정장치에 있어서, 상기 디스크 고정홀더는, 상기 음각멈춤턱의 함몰 깊이 또는 상기 양각 멈춤턱의 돌출 높이를 0.3mm ~ 2.0mm 이내로 형성하고, 그 갯수는 상기 양각걸림턱 또는 음각걸림턱 갯수에 비례하도록 2개 내지 4개로 형성되는 것을 특징으로 한다.In the grinder disk fixing device according to the present invention, the disk fixing holder forms a recessed depth of the engraved stopper or a protruding height of the embossed stopper within 0.3mm to 2.0mm, the number of which is the embossed stopper or It is characterized in that it is formed of 2 to 4 pieces in proportion to the number of intaglio locking jaws.

본 발명에 따르면, 그라인더의 디스크 고정장치에 의하면 고정장치가 간단한 구성으로 이루어지므로 제조를 간소화할 수 있고, 조립구조가 단계적으로 이루어지므로 조립의 용이성을 제공하며, 디스크 고정장치의 회전체결부에 체결되는 그라인더의 회전축이 디스크 고정장치 상부로 노출됨으로 전용 디스크는 물론, 범용디스크를 호환하여 사용할 수 있고, 디스크의 고정방식이 원터치로 간편하게 고정할 수 있음은 물론 대리석등의 연마작업시 그라인더에 작용하는 강한 진동에 의한 연마 디스크가 흔들리는 현상 등을 방지함으로써 가공물 표면에 대한 연마작업 및, 절단작업이 정확하게 이루어지고, 회전 균형을 향상시켜 수명증대 및 절삭 성능향상과 동시에 정밀작업을 안전하게 진행할 수 있으며, 전동그라인더의 절단작업시 수명이 점점 저하됨에 따라 힘이 저하되어 절단 공작물과 그라인더 디스크 사이에 끼어 스프링의 복원력으로 버티지 못하고 디스크가 풀려 탈착하는 현상을 방지할 수 있고, 디스크 고정장치의 구조 간소화로 슬립화되어 그라인더의 상용 디스크를 호환하여 사용할수 있는 장점을 가지고 있다.According to the present invention, according to the disk fixing device of the grinder, since the fixing device has a simple configuration, manufacturing can be simplified, and the assembly structure is made step by step, providing ease of assembly, and fastening to the rotating fastening part of the disk fixing device. Since the rotating shaft of the grinder is exposed on the upper part of the disc fixing device, it can be used interchangeably with a dedicated disc as well as a general-purpose disc, and the fixing method of the disc can be easily fixed with one touch. By preventing the shaking of the abrasive disc caused by strong vibration, the polishing and cutting work on the surface of the workpiece is performed accurately, and the rotation balance is improved to increase the lifespan and cutting performance, and at the same time, precision work can be safely performed. As the lifespan of the grinder gradually decreases during the grinding operation, the power decreases and the phenomenon of being caught between the cutting workpiece and the grinder disk, which cannot withstand the restoring force of the spring, and the disk is released and detached, can be prevented. It has the advantage of being compatible with commercially available grinder discs.

도 1은 본 발명의 제1실시예에 따른 그라인더 디스크 고정장치를 나타낸 도면.1 is a view showing a grinder disk fixing device according to a first embodiment of the present invention.

도 2는 본 발명의 제1실시예에 따른 그라인더 디스크 고정장치의 측 단면도.2 is a side cross-sectional view of a grinder disc fixing device according to a first embodiment of the present invention.

도 3은 본 발명에 따른 그라인더 디스크 고정장치의 디스크 고정장치를 나타낸 도면.3 is a view showing a disk holding device of a grinder disk holding device according to the present invention.

도 4는 본 발명에 따른 그라인더 디스크 고정장치의 디스크 고정장치에 다른 실시예를 나타낸 도면.4 is a view showing another embodiment of the disc holding device of the grinder disc holding device according to the present invention.

도 5는 본 발명의 제1실시예에 따른 그라인더 디스크 고정장치의 디스크 고정홀더를 나타낸 도면.5 is a view showing a disk fixing holder of a grinder disk fixing device according to a first embodiment of the present invention.

도 6은 본 발명에 따른 그라인더 디스크 고정장치의 지지판을 나타낸 도면.6 is a view showing a support plate of a grinder disk fixing device according to the present invention.

도 7은 본 발명의 제2실시예에 따른 그라인더 디스크 고정장치를 나타낸 도면.7 is a view showing a grinder disk fixing device according to a second embodiment of the present invention.

도 8은 본 발명의 제2실시예에 따른 그라인더 디스크 고정장치의 측 단면도.8 is a side cross-sectional view of a grinder disc holder according to a second embodiment of the present invention.

도 9은 본 발명의 제2실시예에 따른 그라인더 디스크 고정장치의 디스크 고정홀더를 나타낸 도면.9 is a view showing a disk fixing holder of a grinder disk fixing device according to a second embodiment of the present invention.

이하, 본 발명의 실시예를 첨부된 도면을 참조하여 더욱 상세하게 설명한다.Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

도 1 내지 도 9를 참조하면, 본 발명에 따른 그라인더 디스크 고정장치는 디스크 고정장치(30), 지지판(50), 장력조절기(70), 코일스프링(60) 및 디스크 고정홀더(20)로 구성된다.1 to 9, the grinder disk holding device according to the present invention is composed of a disk holding device 30, a support plate 50, a tension regulator 70, a coil spring 60, and a disk holding holder 20. do.

[제1 실시예][First Embodiment]

상기 디스크 고정장치(30)는 중앙부에 상, 하로 관통된 구멍(30B)을 형성한 몸체(30A)를 구비하고, 상기 몸체(30A)의 구멍(30B) 내주면에 그라인더 회전축(40) 또는 장력조절볼트(70-2)를 나선방식으로 체결하는 회전축 체결부(30-1)를 형성하며, 상기 몸체(30A) 외면에 2개 내지 4개로 돌출 형성된 회전멈춤턱(30-2)을 형성하고, 상기 회전멈춤턱(30-2) 내측 상면에 하방으로 돌출 형성됨 양각걸림턱(30-3B) 또는 상방으로 함몰 형성된 음각걸림턱(30-3A)을 형성한다.The disk fixing device 30 has a body 30A having a hole 30B penetrating upwards and downwards in a central portion thereof, and a grinder rotating shaft 40 or tension control is provided on the inner circumferential surface of the hole 30B of the body 30A. A rotation shaft fastening part 30-1 for fastening the bolt 70-2 in a spiral manner is formed, and two to four protruding rotation stoppers 30-2 are formed on the outer surface of the body 30A, An embossed engaging jaw 30-3B protruding downward or a negative engaging jaw 30-3A recessed upward is formed on the inner upper surface of the rotation stopper 30-2.

상기 몸체(30A)는 원통 형상으로 형성되어 상기 구멍(30B) 내로 상기 그라인더 회전축(40)이 삽입되도록 허용한다.The body 30A is formed in a cylindrical shape and allows the grinder rotating shaft 40 to be inserted into the hole 30B.

상기 구멍(30B)의 직경은 상기 그라인더 회전축(40) 직경에 비례하는 것이 바람직하다.The diameter of the hole 30B is preferably proportional to the diameter of the grinder rotating shaft 40 .

상기 회전축 체결부(30-1)는 상기 그라인더 회전축(40)이 나선방식으로 체결되도록 허용하여, 상기 구멍(30B) 내에서 상기 그라인더 회전축(40)이 이탈 분리되는 것을 방지한다.The rotary shaft fastening part 30-1 allows the grinder rotary shaft 40 to be fastened in a spiral manner, thereby preventing the grinder rotary shaft 40 from being separated from within the hole 30B.

상기 회전멈춤턱(30-2)은 그 사이로 상기 디스크 고정홀더(20)의 양각홀더(20-1B) 또는 음각홀더(20-1A)를 진입시켜, 직 하방에 상기 양각홀더(20-1B) 또는 음각홀더(20-1A)가 위치되도록 허용한다.The rotation stopper 30-2 enters the embossed holder 20-1B or the intaglio holder 20-1A of the disk fixing holder 20 therebetween, and the embossed holder 20-1B directly below. Alternatively, the intaglio holder 20-1A is allowed to be positioned.

상기 회전멈춤턱(30-2)은 상기 디스크 고정홀더(20)가 상기 디스크 고정장치(30)에서 이탈 분리되는 것을 차단한다.The rotation stopper 30-2 blocks the disc fixing holder 20 from being separated from the disc fixing device 30.

상기 회전멈춤턱(30-2)은 상기 디스크 고정홀더(20)의 양각홀더(20-1B) 또는 음각홀더(20-1A) 갯수에 비례하는 갯수로 형성되는 것이 바람직하다.It is preferable that the number of rotation stoppers 30-2 is proportional to the number of embossed holders 20-1B or intaglio holders 20-1A of the disk fixing holder 20.

상기 회전멈춤턱(30-2)은 "ㄱ"자 형상으로 형성되어, 상기 디스크 고정홀더(20)가 걸림 고정되도록 하는 것이 바람직하다.Preferably, the rotation stopper 30-2 is formed in an “L” shape so that the disk fixing holder 20 is hooked and fixed.

상기 회전멈춤턱(30-2)은 그 하단에 상기 몸체(30A) 방향을 향해 함몰되도록 단턱지되, 하방으로 연장 형성되어, 상기 지지판 가이드 홈(50-1)이 삽입되도록 허용하는 가이드 부(30-4)를 더 형성한다.The rotation stopper 30-2 is supported at its lower end so as to be depressed in the direction of the body 30A, and extends downward to allow the support plate guide groove 50-1 to be inserted. -4) to further form

상기 가이드부(30-4)는 상기 지지판 가이드홈(50-1)이 상, 하로 이동하는 것을 안내한다.The guide part 30-4 guides the upward and downward movement of the support plate guide groove 50-1.

상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)은 상기 디스크 고정홀더(20)의 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)에 삽입 걸림되어, 상기 회전멈춤턱(30-2) 직하방에 체결된 상기 디스크 고정홀더(20)가 상기 회전멈춤턱(30-2) 내에서 역 방향으로 회전되어, 이탈 분리되는 것을 차단한다.The embossed jaw 30-3B or the negative jaw 30-3A is inserted into the negative jaw 20-2A or the embossed jaw 20-2B of the disk fixing holder 20, and the The disk fixing holder 20 fastened directly below the rotation stopper 30-2 is rotated in the opposite direction within the rotation stopper 30-2, preventing separation and separation.

상기 양각걸림턱(30-3B)은 상기 디스크 고정홀더(20)의 음각 멈춤턱(20-2A) 내로 삽입 결합되어, 상기 음각 멈춤턱(20-2A)에 걸림 고정된다.The embossed stopper 30-3B is inserted into the concave stopper 20-2A of the disk fixing holder 20 and is engaged with the concave stopper 20-2A.

상기 음각걸림턱(30-3A)은 상기 디스크 고정홀더(20)의 양각 멈춤턱(20-2B) 내로 삽입 결합되어, 상기 양각 멈춤턱(20-2B)에 걸림 고정된다.The negative stopper 30-3A is inserted and coupled into the embossed stopper 20-2B of the disk fixing holder 20, and is engaged and fixed to the embossed stopper 20-2B.

상기 양각걸림턱(30-3B)의 돌출 높이 또는 상기 음각걸림턱(30-3A)의 함몰 깊이는 상기 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)의 높이에 비례하는 것이 바람직하다.The protruding height of the embossed jaw 30-3B or the recessed depth of the negative jaw 30-3A is proportional to the height of the negative jaw 20-2A or the embossed jaw 20-2B. desirable.

상기 디스크 고정장치(30)는 상기 회전 멈춤턱(30-2) 및 음각 걸림턱(30-3A) 또는 양각 걸림턱(30-3B)를 2개 내지 4개로 구비하며, 상기 회전 멈춤턱(30-2) 및 음각 걸림턱(30-3A) 또는 양각 걸림턱(30-3B) 갯수는 구동회전력의 힘에 의하여 구비되는 수량을 선정한다.The disk fixing device 30 includes two to four rotation stoppers 30-2 and two to four concave stoppers 30-3A or embossed stoppers 30-3B, and the rotation stopper 30 -2) and the number of intaglio locking jaws 30-3A or embossed locking jaws 30-3B selects the quantity provided by the force of driving rotational force.

상기 지지판(50)은 상기 디스크고정장치(30)의 몸체(30A) 외면에 승강 이동가능하게 결합되어, 상기 회전멈춤턱(30-2)의 내측 상면에서 정해진 거리 이격되게 위치된다.The support plate 50 is movably coupled to the outer surface of the body 30A of the disk fixing device 30, and is spaced apart from the upper inner surface of the rotation stopper 30-2 by a predetermined distance.

상기 지지판(50)은 상기 테이퍼 코일스프링(60)에 의해 상방으로 가압되어, 상기 디스크고정홀더(20)를 상기 회전멈춤턱(30-2) 방향으로 가압한다.The support plate 50 is pushed upward by the tapered coil spring 60 and presses the disk fixing holder 20 in the direction of the rotation stopper 30-2.

상기 지지판(50)은 상기 디스크 고정홀더(20)의 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)이 상기 디스크고정장치(30)의 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림되도록, 상기 디스크 고정홀더(20)를 가압한다.In the support plate 50, the negative stop 20-2A or the embossed stop 20-2B of the disk fixing holder 20 is the embossed stop 30-3B or the intaglio stopper 30-3B of the disk fixing device 30. Press the disk fixing holder 20 so that it is inserted into the locking jaw 30-3A.

상기 지지판(50)은 상기 디스크 고정장치(30)의 몸체(30A) 외면 직경보다 상대적으로 더 크게 형성되어, 상기 디스크 고정홀더(20)를 떠받쳐 지지하는 것이 바람직하다.It is preferable that the support plate 50 is formed relatively larger than the diameter of the outer surface of the body 30A of the disk fixing device 30 to support the disk fixing holder 20 .

상기 지지판(50)은 상기 회전멈춤턱(30-2)에서 정해진 거리 이격되어, 상기 지지판(50)과 상기 회전멈춤턱(30-2) 사이로 상기 디스크 고정홀더(20)가 강제 진입되도록 안내한다.The support plate 50 is spaced apart from the rotation stopper 30-2 by a predetermined distance, and guides the disk fixing holder 20 to forcefully enter between the support plate 50 and the rotation stopper 30-2. .

상기 지지판(50)은 내주면에 상기 디스크고정장치(30)의 가이드부(30-4)에 삽입 결합되어, 상기 가이드부(30-4)를 따라 상, 하로 이동하는 지지판 가이드홈(50-1)을 형성한다.The support plate 50 is inserted into and coupled to the guide part 30-4 of the disk holding device 30 on the inner circumferential surface, and the support plate guide groove 50-1 moves up and down along the guide part 30-4. ) to form

상기 지지판 가이드홈(50-1)은 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 돌출 두께보다 상대적으로 얇게 관통 형성되어, 상기 가이드부(30-4) 하단에 걸림된다.The support plate guide groove 50-1 is formed through a relatively thinner thickness than the projection thickness of the rotation stopper 30-2 of the disk fixing device 30, and is caught on the lower end of the guide part 30-4.

상기 지지판(50)은 상면 테두리가 상기 디스크 고정장치(30)의 가이드부(30-4) 하단에 걸림되어, 상기 회전멈춤턱(30-2) 내측 상면에서 정해진 거리 이격된 상태를 유지한다.The upper edge of the support plate 50 is caught on the lower end of the guide part 30-4 of the disk fixing device 30, and maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.

상기 장력조절기(70)는 장력조절너트(70-1) 구조로 형성되고, 상기 디스크 고정장치(30) 하단에 나선방식으로 체결되어, 상기 지지판(50)에서 정해진 거리 이격된 상태를 유지한다.The tension adjuster 70 is formed in the structure of a tension adjusting nut 70-1, and is screwed to the lower end of the disk fixing device 30 in a spiral manner to maintain a state spaced apart from the support plate 50 by a predetermined distance.

상기 장력조절기(70)는 전동그라인더 방식에 대응하는 장력조절너트(70-1)를 상기 디스크 고정장치(30) 하단에 나선방식으로 선택 체결한다.The tension adjuster 70 selects and fastens the tension adjusting nut 70-1 corresponding to the electric grinder method to the lower end of the disk fixing device 30 in a spiral manner.

상기 장력조절너트(70-1)는 상기 디스크 고정장치 하단 외주면에 나선방식으로 체결되고, 그 중앙부가 관통되어 상기 디스크 고정장치(30)의 회전축 체결부(30-1)와 연통되되, 중앙부로 상기 그라인더 회전축(40)이 통과되도록 안내한다.The tension adjusting nut 70-1 is screwed to the lower outer circumferential surface of the disk fixing device in a spiral manner, and its central portion penetrates to communicate with the rotating shaft fastening portion 30-1 of the disk fixing device 30, and to the central portion. It guides the grinder rotating shaft 40 to pass through.

상기 장력조절기(70)는 상기 디스크 고정장치(30)에 나선방식으로 회전 체결되면서, 상기 지지판(50)을 가압하는 상기 테이퍼 코일스프링(60)의 압축력을 조절한다.The tension controller 70 is rotationally fastened to the disk fixing device 30 in a spiral manner, and adjusts the compressive force of the tapered coil spring 60 pressing the support plate 50 .

상기 테이퍼 코일스프링(60)은 상기 지지판(50)과 상기 장력조절기(70) 사이에 설치되어, 상기 지지판(50)을 상기 디스크 고정장치(30) 방향으로 가압한다.The tapered coil spring 60 is installed between the support plate 50 and the tension regulator 70 and presses the support plate 50 toward the disk fixing device 30 .

상기 테이퍼 코일스프링(60)은 상단에서 하단으로 갈수록 그 직경이 점차적으로 좁아지는 테이퍼 형태를 갖는 것이 바람직하다.The tapered coil spring 60 preferably has a tapered shape in which the diameter gradually narrows from the top to the bottom.

상기 테이퍼 코일스프링(60)은 상기 장력조절기(70)에 의해 상방으로 가압되면서, 상기 지지판(50)을 상방으로 가압한다.The tapered coil spring 60 presses the support plate 50 upward while being pressed upward by the tension controller 70 .

상기 디스크 고정홀더(20)는 중앙부가 상, 하로 관통되어 상기 몸체(30A) 외주면에 삽입 결합되고, 외면에 디스크(10)를 장착하며, 내주면이 상기 회전멈춤턱(30-2) 사이로 진입되어 상기 회전멈춤턱(30-2) 방향으로 회전되되, 상기 지지판(50)에 의해 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A) 방향으로 가압되어, 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림된다.The disk fixing holder 20 is inserted and coupled to the outer circumferential surface of the body 30A by penetrating the central portion upward and downward, mounting the disk 10 on the outer circumferential surface, and entering the inner circumferential surface between the rotation stop jaws 30-2. It is rotated in the direction of the rotation stopper 30-2, and is pressed in the direction of the embossed protrusion 30-3B or the negative protrusion 30-3A by the support plate 50, and the embossed protrusion 30 -3B) or inserted into the intaglio locking jaw (30-3A).

상기 디스크 고정홀더(20)는 상기 회전멈춤턱(30-2) 사이로 진입된 상태에서, 상기 그라인더 회전축(40) 회전방향과 반대되는 방향으로 회전되어, 상기 회전멈춤턱(30-2) 직하방에 위치된다.The disk fixing holder 20 is rotated in a direction opposite to the rotating direction of the grinder rotational shaft 40 in a state where it enters between the rotation stopping jaws 30-2, and is directly below the rotation stopping jaw 30-2. is located in

상기 디스크 고정홀더(20)는 상기 지지판(50)을 하방으로 누름 가압하면서, 상기 회전멈춤턱(30-2) 방향으로 회전된 후, 상기 지지판(50)의 가압력에 의해 상기 회전멈춤턱(30-2) 직하방에 삽입 체결되어, 상기 회전멈춤턱(30-2)에 걸림 고정된다.The disk fixing holder 20 is rotated in the direction of the rotation stopper 30-2 while pressing the support plate 50 downward, and then the rotation stopper 30 by the pressing force of the support plate 50. -2) It is inserted and fastened directly below, and is caught and fixed to the rotation stop jaw 30-2.

상기 디스크 고정홀더(20)는 상기 회전멈춤턱(30-2)에 삽입 걸림되어, 상기 회전멈춤턱(30-2) 내에서 정, 역 방향으로 회전되는 것이 방지된다.The disk fixing holder 20 is inserted into the rotation stopping jaw 30-2 and is prevented from being rotated in the forward and reverse directions within the rotation stopping jaw 30-2.

상기 디스크 고정홀더(20)는 상기 그라인더 회전축(40)과 일체로 회전되는 상기 디스크 고정장치(30)에 의해 상기 그라인더 회전축(40) 방향에 대응하도록 회전되면서, 상기 디스크(10)를 회전시킨다.The disc fixing holder 20 is rotated to correspond to the direction of the grinder rotation shaft 40 by the disc fixing device 30 rotated integrally with the grinder rotation shaft 40, thereby rotating the disc 10.

상기 디스크(10)는 상기 디스크 고정홀더(20)에 의해 정방향 또는 역방향으로 회전되면서, 그라인딩 또는 연마작업을 수행한다.The disk 10 performs grinding or polishing while being rotated in a forward or reverse direction by the disk fixing holder 20 .

상기 디스크 고정홀더(20)는 내주면에 상기 회전멈춤턱(30-2) 사이로 진입되어 상기 회전멈춤턱(30-2) 직하방에 위치되되, 상면 일측에 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)과 대칭되도록 형성되어, 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림되는 음각멈춤턱(20-2A)이 형성된 음각홀더(20-1A) 또는 양각멈춤턱(20-2B)이 형성된 양각홀더(20-1B))을 형성한다.The disk fixing holder 20 enters between the rotation stopping jaws 30-2 on the inner circumferential surface and is positioned directly below the rotation stopping jaw 30-2, and the raised engaging jaw 30-3B or Engraving holder 20 formed to be symmetrical with the negative engaging jaw 30-3A and having a negative jaw 20-2A inserted into the embossed jaw 30-3B or the negative jaw 30-3A. -1A) or an embossed holder (20-1B) having an embossed stopper (20-2B) is formed.

상기 양각홀더(20-1B) 또는 음각홀더(20-1A)는 상기 회전멈춤턱(30-2)과 엇갈리도록 형성되어, 상기 회전멈춤턱(30-2) 사이로 진입된다.The embossed holder 20-1B or the intaglio holder 20-1A is formed so as to cross with the rotation stopping jaw 30-2 and enters between the rotation stopping jaws 30-2.

상기 양각홀더(20-1B) 또는 음각홀더(20-1A)의 갯수는 상기 회전멈춤턱(30-2) 갯수에 비례하도록 형성된다.The number of the embossed holders 20-1B or the intaglio holders 20-1A is formed in proportion to the number of the rotation stopping jaws 30-2.

상기 음각홀더(20-1A)의 음각멈춤턱(20-2A)은 상기 디스크 고정장치(30)의 양각걸림턱(30-3B)이 삽입 걸림되도록 허용한다.The intaglio stop (20-2A) of the intaglio holder (20-1A) allows the embossed protrusion (30-3B) of the disk holding device (30) to be inserted and caught.

상기 양각홀더(20-1A)의 양각멈춤턱(20-2B)은 상기 디스크 고정장치(30)의 음각걸림턱(30-3A)에 삽입 걸림된다.The embossed stop (20-2B) of the embossed holder (20-1A) is inserted into the concave stop (30-3A) of the disk fixing device (30).

상기 디스크 고정홀더(20)는 상기 음각멈춤턱(20-2A)의 함몰 깊이 또는 상기 양각 멈춤턱(20-2B)의 돌출 높이를 0.3mm ~ 2.0mm 이내로 형성하고, 그 갯수는 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A) 갯수에 비례하도록 2개 내지 4개로 형성된다.The disk fixing holder 20 forms a recessed depth of the concave stopper 20-2A or a protruding height of the embossed stopper 20-2B within 0.3mm to 2.0mm, the number of which is the embossed stopper (30-3B) or intaglio locking jaws (30-3A) are formed in 2 to 4 pieces in proportion to the number.

상기와 같이 구성되는 본 발명의 제1실시예에 따른 그라인더 디스크 고정장치는 다음과 같이 사용된다.The grinder disk fixing device according to the first embodiment of the present invention configured as described above is used as follows.

여기서, 본 발명에 따른 그라인더 디스크 고정장치는 전동 또는 공압그라인에 사용될 수 있고, 이하에서는 전동그라인더(이하, 그라인더)를 기준으로 설명하고, 이에따라, 그라인더 체결을 가능하게 하는 장력조절너트(70-1) 구조의 장력조절기(70)를 예로 들어 설명하도록 한다.Here, the grinder disc fixing device according to the present invention can be used for an electric or pneumatic grinder, and will be described below based on an electric grinder (hereinafter referred to as a grinder), and accordingly, a tension adjusting nut (70- 1) The structure of the tension regulator 70 will be described as an example.

먼저, 그라인더 회전축(40)에 장력조절기(70), 테이퍼 코일스프링(60), 지지판(50)을 순차적으로 삽입한 다음 디스크 고정장치(30)의 몸체(30A) 외면에 형성된 가이드부(30-4)를 지지판 가이드홈(50-1)에 삽입하고, 디스크 고정장치(30)의 중앙에 형성된 회전축 체결부(30-1)를 그라인더의 회전축(40)에 체결한 다음 디스크 고정장치(30) 하부 외주면에 형성된 나사부(30-5)에 장력조절기(70)를 체결하면 그라인더에 디스크 고정장치(30)의 장착이 완료된다.First, the tension regulator 70, the tapered coil spring 60, and the support plate 50 are sequentially inserted into the grinder rotating shaft 40, and then the guide portion 30- formed on the outer surface of the body 30A of the disk fixing device 30 4) is inserted into the support plate guide groove 50-1, and the rotating shaft fastening part 30-1 formed in the center of the disk holding device 30 is fastened to the rotating shaft 40 of the grinder, and then the disk holding device 30 When the tension regulator 70 is fastened to the threaded part 30-5 formed on the lower outer circumferential surface, the disc fixing device 30 is mounted on the grinder.

여기서, 상기 가이드부(30-4)가 상기 지지판 가이드홈(50-1)을 따라 삽입 결합되되, 상기 회전멈춤턱(30-2) 하단이 상기 지지판 가이드홈(50-1) 주변에 걸림되어, 상기 지지판(50)이 상기 회전멈춤턱(30-2) 내측 상면에서 정해진 거리 이격된 상태를 유지한다.Here, the guide part 30-4 is inserted and coupled along the support plate guide groove 50-1, and the lower end of the rotation stopper 30-2 is caught around the support plate guide groove 50-1. , The support plate 50 maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.

이때, 상기 장력조절기(70)의 장력조절너트(70-1)를 상기 디스크 고정장치(30)의 하단 외주면에 나선 체결하면, 상기 장력조절기(70)가 상기 디스크 고정장치(30) 방향으로 상승 이동되면서, 상기 테이퍼 코일스프링(60)을 상방으로 가압하고, 이에따라, 상기 코일스프링(60)이 상방으로 가압되어, 상기 지지판(50)을 상기 회전멈춤턱(30-2) 방향으로 가압한다.At this time, when the tension adjusting nut 70-1 of the tension adjusting device 70 is spirally fastened to the lower outer circumferential surface of the disk holding device 30, the tension adjusting device 70 rises in the direction of the disk holding device 30. While being moved, the tapered coil spring 60 is pressed upward, and accordingly, the coil spring 60 is pressed upward to press the support plate 50 in the direction of the rotation stopper 30-2.

그리고, 디스크(10)의 장력조절은 장력조절기를(70) 풀거나, 조여 조절하며, 이때, 장력조절 너트(70)는 멈춤턱 구실을 하면서, 상기 장력조절너트(70-1)가 정해진 거리 이상 이동하는 것을 제한하여, 상기 디스크 고정홀더(20)의 두께에 대응하도록 상기 지지판(50)과 상기 회전멈춤턱(30-2) 사이가 "B" 거리를 유지한다.In addition, the tension control of the disk 10 is adjusted by loosening or tightening the tension controller 70, and at this time, the tension adjusting nut 70 serves as a stopper, and the tension adjusting nut 70-1 By restricting abnormal movement, a distance "B" is maintained between the support plate 50 and the rotation stopper 30-2 to correspond to the thickness of the disk fixing holder 20.

이때, 상기 지지판(50)에 디스크 고정장치(30)를 삽입하여, 상기 디스크 고정장치(30)의 회전을 방지하고 장력조절기(70)만 회전하여 장력을 조절한다.At this time, the disk fixing device 30 is inserted into the support plate 50 to prevent the disk fixing device 30 from rotating, and only the tension controller 70 rotates to adjust the tension.

특히, 상기 지지판(50)과 상기 장력조절기(70) 사이의 장력 조절 폭은 "A" 이상, "B" 이하의 간격을 갖도록 형성하며, "A"의 폭은 상기 디스크 고정홀더(20)의 음각 멈춤턱(20-2A)의 함몰깊이 또는 양각 멈춤턱(20-2B) 의 돌출 높이보다 상대적으로 더 넓어야 한다.In particular, the tension control width between the support plate 50 and the tension controller 70 is formed to have a gap of "A" or more and "B" or less, and the width of "A" is the width of the disk fixing holder 20. It should be relatively wider than the depression depth of the concave stop (20-2A) or the protruding height of the embossed stop (20-2B).

그리고, 상기 장력조절기(70)와 상기 지지판(50) 사이의 간격은 "A" 이상이여야 한다.And, the distance between the tension controller 70 and the support plate 50 should be "A" or more.

만약, 상기 장력조절기(70)와 상기 지지판(50) 사이의 간격이 "A"보다 좁게 형성될 때에는 디스크 고정홀더(20)를 디스크 고정장치(30)에 장착할 수 없는 현상이 발생하며 "A"보다 상대적으로 넓게 형성되면, 상기 디스크 고정홀더(20)의 장착력이 감소되어, 상기 디스크(10)로 절단이나 연마작업시 디스크(10)가 탈착될 위험이 있다.If the gap between the tension adjuster 70 and the support plate 50 is formed narrower than "A", a phenomenon occurs that the disk fixing holder 20 cannot be mounted on the disk fixing device 30, and "A" "If it is formed relatively wider, the mounting force of the disk fixing holder 20 is reduced, and there is a risk of the disk 10 being detached during cutting or polishing work with the disk 10.

이후, 디스크 고정장치(30)에 디스크 고정홀더(20)를 삽입하고 하부 방향으로 누르면 지지판(50)이 가이드부(30-4)를 타고 하부방향으로 밀리면서 테이퍼 코일스프링(60)을 압축하고, 이때, 디스크 고정홀더(20)가 테이퍼 코일스프링(60)의 압축량 만큼 하부방향으로 하강 이동되어 상기 회전멈춤턱(30-2) 높이보다 상대적으로 낮은 위치에 위치되면, 상기 디스크 고정장치(30)와 지지판(50) 사이의 간격은 "B" 만큼 벌어진다.Thereafter, the disk fixing holder 20 is inserted into the disk fixing device 30 and pressed downward, the support plate 50 is pushed downward along the guide part 30-4 and compresses the tapered coil spring 60. , At this time, when the disk fixing holder 20 is moved downward by the compression amount of the tapered coil spring 60 and is positioned at a position relatively lower than the height of the rotation stopper 30-2, the disk fixing device ( 30) and the support plate 50 are widened by "B".

여기서, 상기 디스크 고정홀더(20)의 양각홀더(20-1B) 또는 음각홀더(20-1A)를 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 사이로 진입시켜, 상기 디스크 고정홀더(20)를 상기 디스크 고정장치(30)에 체결한다.Here, the embossed holder 20-1B or the intaglio holder 20-1A of the disc fixing holder 20 enters between the rotation stopping jaws 30-2 of the disc fixing device 30, and the disc fixing holder (20) is fastened to the disk fixing device (30).

이때, 상기 디스크 고정장치(30)의 가이드부(30-4)는 상기 지지판 가이드홈(50-1)이 상, 하로 승강 이동하는 것을 안내함으로써, 상기 지지판(50)이 상기 디스크 고정장치(30)의 몸체(30A)를 기준으로 상, 하로 승강 이동된다.At this time, the guide part 30-4 of the disk fixing device 30 guides the up and down movement of the support plate guide groove 50-1, so that the support plate 50 moves up and down the disk fixing device 30. ) is moved up and down based on the body 30A.

즉, 상기 지지판(50)이 원위치에 위치된 경우, 상기 지지판(50)과 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 내측 상면 사이의 이격 거리는 "A"이고, 상기 디스크 고정홀더(20)에 의해 상기 지지판(50)이 누름 가압된 경우에는, 상기 지지판(50)과 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 내측 상면 사이의 이격 거리는 "B"인 것이다.That is, when the support plate 50 is located in the original position, the distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is “A”, and the disk fixing device 30 is “A”. When the support plate 50 is pressed by the holder 20, the separation distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is "B" will be.

이어서, 상기 디스크 고정홀더(20)를 누름 가압하여, 상기 지지판(50)과 가이드 고정장치(30) 사이에 디스크 고정홀더(20)가 장착 될 수 있는 공간 "B"가 형성되면, 상기 디스크 고정홀더(20)를 회전 멈춤턱(30-2) 방향으로 회전시킨 다음 상기 지지판의 가압력을 해제하면, 지지판이 테이퍼 코일스프링(60)의 복원력에 의해 상방으로 상승되면서 상기 디스크 고정홀더(20)를 상방으로 가압하여, 상기 디스크 고정홀더(20)가 상방으로 상승 이동되고, 이때, 상기 디스크 고정홀더(20)에 형성된 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)이 상기 회전멈춤턱(30-2)에 형성된 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림된다.Subsequently, when the disk fixing holder 20 is pressed and a space "B" in which the disk fixing holder 20 can be mounted is formed between the support plate 50 and the guide fixing device 30, the disk is fixed. When the holder 20 is rotated in the direction of the rotation stopper 30-2 and then the pressing force of the support plate is released, the support plate is raised upward by the restoring force of the tapered coil spring 60 and the disk fixing holder 20 is lifted. By pressing upward, the disk fixing holder 20 moves upward, and at this time, the negative stop 20-2A or the embossed stop 20-2B formed on the disk fixing holder 20 rotates. It is inserted into the embossed jaw 30-3B or the negative jaw 30-3A formed in the stopper 30-2.

이때, 상기 지지판(50)은 테이퍼 코일스프링(60)의 복원력에 의해 상방으로 상승이동 되고, 이에따라, 상기 지지판 가이드홈(50-1)이 상기 가이드 부(30-4)를 타고 상부로 이동한다.At this time, the support plate 50 moves upward by the restoring force of the tapered coil spring 60, and accordingly, the support plate guide groove 50-1 moves upward along the guide part 30-4. .

즉, 상기 지지판(50) 상승 이동에 의해 상기 디스크 고정홀더(20)가 상방으로 상승 이동되고, 이때, 상기 음각멈춤턱(20-2A)이 상기 양각걸림턱(30-3B)에 삽입 걸림되거나 혹은 상기 양각멈춤턱(20-2B)이 상기 음각걸림턱(30-3A)에 삽입 걸림되어, 상기 회전멈춤턱(30-2) 직하방에 상기 디스크 고정홀더(20)가 밀착 걸림된다.That is, the disk fixing holder 20 is moved upward by the upward movement of the support plate 50, and at this time, the negative stopper 20-2A is inserted into the embossed stopper 30-3B or caught. Alternatively, the embossed jaw 20-2B is inserted into and caught by the negative latch 30-3A, and the disk fixing holder 20 is closely engaged under the rotation stop jaw 30-2.

여기서, 상기 지지판(50)은 원상태로 복원되는 상기 테이퍼 코일스프링(60)의 장력에 의해 상기 디스크 고정홀더(20)를 상방으로 누름 가압하여, 상기 디스크고정홀더(20)가 상기 회전멈춤턱(30-2) 직하방에 밀착되도록 장착하고, 이때, 디스크 고정장치(30)와 지지판(50) 사이에는 "A" 간격에 비례하는 두께를 갖는 디스크(10)가 장착된다.Here, the support plate 50 presses the disk fixing holder 20 upward by the tension of the tapered coil spring 60 restored to its original state, so that the disk fixing holder 20 is the rotation stopper ( 30-2) It is mounted so as to be in close contact directly below, and at this time, between the disk fixing device 30 and the support plate 50, a disk 10 having a thickness proportional to the "A" interval is mounted.

이후, 그라인더 회전축(40)에 회전축 체결부(30-1)를 체결하면 그라인더에 그라인더 디스크 고정장치의 장착이 마무리된다.Thereafter, when the rotary shaft fastening part 30-1 is fastened to the grinder rotary shaft 40, the mounting of the grinder disk fixing device to the grinder is completed.

그리고, 디스크 고정홀더(20)를 디스크 고정장치(30)에 고정한후, 그라인더의 구동모터(미도시)를 작동시키면, 구동모터(미도시)의 구동력에 의해 상기 디스크 고정장치(30)가 일체로 회전되면서, 상기 디스크(10)에 회전력을 전달하고, 이때, 상기 디스크(10)로 절단 또는 연마작업을 진행하게 된다.In addition, when the drive motor (not shown) of the grinder is operated after fixing the disk fixing holder 20 to the disk fixing device 30, the disc fixing device 30 is integrated by the driving force of the drive motor (not shown). As it rotates, rotational force is transmitted to the disk 10, and at this time, the disk 10 is cut or polished.

만약, 그라인더 작업시 장착된 배터리가 소모되어 구동력이 저하되거나 혹은 작업자가 절단이나 연마작업시 과도한 힘을 가해 절단면에 디스크(10)가 끼임되는 현상이 발생되는 경우, 상기 디스크 고정홀더(20)의 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)이 상기 디스크 고정장치(30)의 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림된 상태를 유지함으로써, 상기 디스크 고정홀더(20)가 상기 회전멈춤턱(30-2)에서 이탈 분리되는 것을 미연에 방지할 수 있다.If the battery installed during the grinder operation is consumed and the driving force is reduced or the disk 10 is caught in the cutting surface due to excessive force applied by the operator during cutting or polishing, the disk fixing holder 20 The negative stopper (20-2A) or the embossed stopper (20-2B) is inserted into the embossed stopper (30-3B) or the negative stopper (30-3A) of the disk fixing device 30 and maintains the jammed state. By doing so, it is possible to prevent the disk fixing holder 20 from being separated from the rotation stopper 30-2 in advance.

[제2 실시예] [Second Embodiment]

상기 디스크 고정장치(30)는 중앙부에 상, 하로 관통된 구멍(30B)을 형성한 몸체(30A)를 구비하고, 상기 몸체(30A)의 구멍(30B) 내주면에 그라인더 회전축(40) 또는 장력조절볼트(70-2)를 나선방식으로 체결하는 회전축 체결부(30-1)를 형성하며, 상기 몸체(30A) 외면에 2개 내지 4개로 돌출 형성된 회전멈춤턱(30-2)을 형성하고, 상기 회전멈춤턱(30-2) 내측 상면에 하방으로 돌출 형성됨 양각걸림턱(30-3B) 또는 상방으로 함몰 형성된 음각걸림턱(30-3A)을 형성한다.The disk fixing device 30 has a body 30A having a hole 30B penetrating upwards and downwards in a central portion thereof, and a grinder rotating shaft 40 or tension control is provided on the inner circumferential surface of the hole 30B of the body 30A. A rotation shaft fastening part 30-1 for fastening the bolt 70-2 in a spiral manner is formed, and two to four protruding rotation stoppers 30-2 are formed on the outer surface of the body 30A, An embossed engaging jaw 30-3B protruding downward or a negative engaging jaw 30-3A recessed upward is formed on the inner upper surface of the rotation stopper 30-2.

상기 몸체(30A)는 상기 구멍(30B) 내에 상기 장력조절기(70)의 장력조절볼트(70-2)에 형성된 회전축(미부호)이 체결되도록 허용할 수 있다.The body 30A may allow a rotating shaft (not shown) formed in the tension adjusting bolt 70-2 of the tension adjusting device 70 to be fastened into the hole 30B.

상기 구멍(30B)의 직경은 상기 장력조절기(70)의 장력조절볼트(70-2)에 형성된 회전축(미부호) 직경에 비례하는 것이 바람직하다.The diameter of the hole 30B is preferably proportional to the diameter of the rotating shaft (unsigned) formed in the tension adjusting bolt 70-2 of the tension adjusting device 70.

상기 회전축 체결부(30-1)는 상기 장력조절기(70)의 장력조절볼트(70-2)에 형성된 회전축(미부호)이 나선 방식으로 체결되도록 할 수 있다.The rotating shaft fastening part 30-1 may allow the rotating shaft (not shown) formed in the tension adjusting bolt 70-2 of the tension adjusting device 70 to be fastened in a spiral manner.

상기 회전멈춤턱(30-2)은 그 사이로 상기 디스크 고정홀더(20)의 양각홀더(20-1B) 또는 음각홀더(20-1A)를 진입시켜, 직 하방에 상기 양각홀더(20-1B) 또는 음각홀더(20-1A)가 위치되도록 허용한다.The rotation stopper 30-2 enters the embossed holder 20-1B or the intaglio holder 20-1A of the disk fixing holder 20 therebetween, and the embossed holder 20-1B directly below. Alternatively, the intaglio holder 20-1A is allowed to be positioned.

상기 회전멈춤턱(30-2)은 상기 디스크 고정홀더(20)가 상기 디스크 고정장치(30)에서 이탈 분리되는 것을 차단한다.The rotation stopper 30-2 blocks the disc fixing holder 20 from being separated from the disc fixing device 30.

상기 회전멈춤턱(30-2)은 상기 디스크 고정홀더(20)의 양각홀더(20-1B) 또는 음각홀더(20-1A) 갯수에 비례하는 갯수로 형성되는 것이 바람직하다.It is preferable that the number of rotation stoppers 30-2 is proportional to the number of embossed holders 20-1B or intaglio holders 20-1A of the disk fixing holder 20.

상기 회전멈춤턱(30-2)은 "ㄱ"자 형상으로 형성되어, 상기 디스크 고정홀더(20)가 걸림 고정되도록 하는 것이 바람직하다.Preferably, the rotation stopper 30-2 is formed in an “L” shape so that the disk fixing holder 20 is hooked and fixed.

상기 회전멈춤턱(30-2)은 그 하단에 상기 몸체(30A) 방향을 향해 함몰되도록 단턱지되, 하방으로 연장 형성되어, 상기 지지판 가이드 홈(50-1)이 삽입되도록 허용하는 가이드 부(30-4)를 더 형성한다.The rotation stopper 30-2 is supported at its lower end so as to be depressed in the direction of the body 30A, and extends downward to allow the support plate guide groove 50-1 to be inserted. -4) to further form

상기 가이드부(30-4)는 상기 지지판 가이드홈(50-1)이 상, 하로 이동하는 것을 안내한다.The guide part 30-4 guides the upward and downward movement of the support plate guide groove 50-1.

상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)은 상기 디스크 고정홀더(20)의 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)에 삽입 걸림되어, 상기 회전멈춤턱(30-2) 직하방에 체결된 상기 디스크 고정홀더(20)가 상기 회전멈춤턱(30-2) 내에서 역 방향으로 회전되어, 이탈 분리되는 것을 차단한다.The embossed jaw 30-3B or the negative jaw 30-3A is inserted into the negative jaw 20-2A or the embossed jaw 20-2B of the disk fixing holder 20, and the The disk fixing holder 20 fastened directly below the rotation stopper 30-2 is rotated in the opposite direction within the rotation stopper 30-2, preventing separation and separation.

상기 양각걸림턱(30-3B)은 상기 디스크 고정홀더(20)의 음각 멈춤턱(20-2A) 내로 삽입 결합되어, 상기 음각 멈춤턱(20-2A)에 걸림 고정된다.The embossed stopper 30-3B is inserted into the concave stopper 20-2A of the disk fixing holder 20 and is engaged with the concave stopper 20-2A.

상기 음각걸림턱(30-3A)은 상기 디스크 고정홀더(20)의 양각 멈춤턱(20-2B) 내로 삽입 결합되어, 상기 양각 멈춤턱(20-2B)에 걸림 고정된다.The negative stopper 30-3A is inserted and coupled into the embossed stopper 20-2B of the disk fixing holder 20, and is engaged and fixed to the embossed stopper 20-2B.

상기 양각걸림턱(30-3B)의 돌출 높이 또는 상기 음각걸림턱(30-3A)의 함몰 깊이는 상기 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)의 높이에 비례하는 것이 바람직하다.The protruding height of the embossed jaw 30-3B or the recessed depth of the negative jaw 30-3A is proportional to the height of the negative jaw 20-2A or the embossed jaw 20-2B. desirable.

상기 디스크 고정장치(30)는 상기 회전 멈춤턱(30-2) 및 음각 걸림턱(30-3A) 또는 양각 걸림턱(30-3B)를 2개 내지 4개로 구비하며, 상기 회전 멈춤턱(30-2) 및 음각 걸림턱(30-3A) 또는 양각 걸림턱(30-3B) 갯수는 구동회전력의 힘에 의하여 구비되는 수량을 선정한다.The disk fixing device 30 includes two to four rotation stoppers 30-2 and two to four concave stoppers 30-3A or embossed stoppers 30-3B, and the rotation stopper 30 -2) and the number of intaglio locking jaws 30-3A or embossed locking jaws 30-3B selects the quantity provided by the force of driving rotational force.

상기 지지판(50)은 상기 디스크고정장치(30)의 몸체(30A) 외면에 승강 이동가능하게 결합되어, 상기 회전멈춤턱(30-2)의 내측 상면에서 정해진 거리 이격되게 위치된다.The support plate 50 is movably coupled to the outer surface of the body 30A of the disk fixing device 30, and is spaced apart from the upper inner surface of the rotation stopper 30-2 by a predetermined distance.

상기 지지판(50)은 상기 테이퍼 코일스프링(60)에 의해 상방으로 가압되어, 상기 디스크고정홀더(20)를 상기 회전멈춤턱(30-2) 방향으로 가압한다.The support plate 50 is pushed upward by the tapered coil spring 60 and presses the disk fixing holder 20 in the direction of the rotation stopper 30-2.

상기 지지판(50)은 상기 디스크 고정홀더(20)의 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)이 상기 디스크고정장치(30)의 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림되도록, 상기 디스크 고정홀더(20)를 가압한다.In the support plate 50, the negative stop 20-2A or the embossed stop 20-2B of the disk fixing holder 20 is the embossed stop 30-3B or the intaglio stopper 30-3B of the disk fixing device 30. Press the disk fixing holder 20 so that it is inserted into the locking jaw 30-3A.

상기 지지판(50)은 상기 디스크 고정장치(30)의 몸체(30A) 외면 직경보다 상대적으로 더 크게 형성되어, 상기 디스크 고정홀더(20)를 떠받쳐 지지하는 것이 바람직하다.It is preferable that the support plate 50 is formed relatively larger than the diameter of the outer surface of the body 30A of the disk fixing device 30 to support the disk fixing holder 20 .

상기 지지판(50)은 상기 회전멈춤턱(30-2)에서 정해진 거리 이격되어, 상기 지지판(50)과 상기 회전멈춤턱(30-2) 사이로 상기 디스크 고정홀더(20)가 강제 진입되도록 안내한다.The support plate 50 is spaced apart from the rotation stopper 30-2 by a predetermined distance, and guides the disk fixing holder 20 to forcefully enter between the support plate 50 and the rotation stopper 30-2. .

상기 지지판(50)은 내주면에 상기 디스크고정장치(30)의 가이드부(30-4)에 삽입 결합되어, 상기 가이드부(30-4)를 따라 상, 하로 이동하는 지지판 가이드홈(50-1)을 형성한다.The support plate 50 is inserted into and coupled to the guide part 30-4 of the disk holding device 30 on the inner circumferential surface, and the support plate guide groove 50-1 moves up and down along the guide part 30-4. ) to form

상기 지지판 가이드홈(50-1)은 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 돌출 두께보다 상대적으로 얇게 관통 형성되어, 상기 가이드부(30-4) 하단에 걸림된다.The support plate guide groove 50-1 is formed through a relatively thinner thickness than the projection thickness of the rotation stopper 30-2 of the disk fixing device 30, and is caught on the lower end of the guide part 30-4.

상기 지지판(50)은 상면 테두리가 상기 디스크 고정장치(30)의 가이드부(30-4) 하단에 걸림되어, 상기 회전멈춤턱(30-2) 내측 상면에서 정해진 거리 이격된 상태를 유지한다.The upper edge of the support plate 50 is caught on the lower end of the guide part 30-4 of the disk fixing device 30, and maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.

상기 장력조절기(70)는 장력조절볼트(70-2) 구조로 형성되고, 상기 디스크 고정장치(30) 하단에 나선방식으로 체결되어, 상기 지지판(50)에서 정해진 거리 이격된 상태를 유지한다.The tension adjuster 70 is formed in the structure of a tension adjusting bolt 70-2, and is screwed to the lower end of the disk fixing device 30 in a spiral manner, and maintains a state spaced apart from the support plate 50 by a predetermined distance.

상기 장력조절기(70)는 공압그라인더에 사용가능한 장력조절볼트(70-2)를 상기 디스크 고정장치(30) 하단에 나선방식으로 선택 체결한다.The tension adjuster 70 selectively fastens the tension adjusting bolt 70-2 usable for the pneumatic grinder to the lower end of the disk fixing device 30 in a spiral manner.

상기 장력조절볼트(70-2)는 상기 디스크 고정장치(30)의 회전축 체결부(30-1)에 체결되어, 그 하면에 그라인더가 체결되도록 안내한다.The tension adjusting bolt 70-2 is fastened to the rotating shaft fastening part 30-1 of the disk fixing device 30, and guides the grinder to be fastened to the lower surface thereof.

상기 장력조절볼트(70-2)는 상, 하면에 서로 대칭되도록 형성되어, 상기 디스크 고정장치(30)의 회전축 체결부(30-1)에 체결되는 회전축(미부호)을 형성할 수 있다.The tension adjusting bolt 70-2 is formed to be symmetrical to each other on the upper and lower surfaces, and may form a rotation shaft (unsigned) fastened to the rotation shaft fastening part 30-1 of the disk fixing device 30.

상기 장력조절기(70)는 상기 디스크 고정장치(30)에 나선방식으로 회전 체결되면서, 상기 지지판(50)을 가압하는 상기 테이퍼 코일스프링(60)의 압축력을 조절한다.The tension controller 70 adjusts the compressive force of the tapered coil spring 60 pressing the support plate 50 while being rotated and fastened to the disk fixing device 30 in a spiral manner.

상기 테이퍼 코일스프링(60)은 상기 지지판(50)과 상기 장력조절기(70) 사이에 설치되어, 상기 지지판(50)을 상기 디스크 고정장치(30) 방향으로 가압한다.The tapered coil spring 60 is installed between the support plate 50 and the tension regulator 70 and presses the support plate 50 toward the disk fixing device 30 .

상기 테이퍼 코일스프링(60)은 상단에서 하단으로 갈수록 그 직경이 점차적으로 좁아지는 테이퍼 형태를 갖는 것이 바람직하다.The tapered coil spring 60 preferably has a tapered shape in which the diameter gradually narrows from the top to the bottom.

상기 테이퍼 코일스프링(60)은 상기 장력조절기(70)에 의해 상방으로 가압되면서, 상기 지지판(50)을 상방으로 가압한다.The tapered coil spring 60 presses the support plate 50 upward while being pressed upward by the tension controller 70 .

상기 디스크 고정홀더(20)는 중앙부가 상, 하로 관통되어 상기 몸체(30A) 외주면에 삽입 결합되고, 외면에 디스크(10)를 장착하며, 내주면이 상기 회전멈춤턱(30-2) 사이로 진입되어 상기 회전멈춤턱(30-2) 방향으로 회전되되, 상기 지지판(50)에 의해 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A) 방향으로 가압되어, 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림된다.The disk fixing holder 20 is inserted and coupled to the outer circumferential surface of the body 30A by penetrating the central portion upward and downward, mounting the disk 10 on the outer circumferential surface, and entering the inner circumferential surface between the rotation stop jaws 30-2. It is rotated in the direction of the rotation stopper 30-2, and is pressed in the direction of the embossed protrusion 30-3B or the negative protrusion 30-3A by the support plate 50, and the embossed protrusion 30 -3B) or inserted into the intaglio locking jaw (30-3A).

상기 디스크 고정홀더(20)는 상기 회전멈춤턱(30-2) 사이로 진입된 상태에서, 상기 그라인더 회전축(40) 회전방향과 반대되는 방향으로 회전되어, 상기 회전멈춤턱(30-2) 직하방에 위치된다.The disk fixing holder 20 is rotated in a direction opposite to the rotating direction of the grinder rotational shaft 40 in a state where it enters between the rotation stopping jaws 30-2, and is directly below the rotation stopping jaw 30-2. is located in

상기 디스크 고정홀더(20)는 상기 지지판(50)을 하방으로 누름 가압하면서, 상기 회전멈춤턱(30-2) 방향으로 회전된 후, 상기 지지판(50)의 가압력에 의해 상기 회전멈춤턱(30-2) 직하방에 삽입 체결되어, 상기 회전멈춤턱(30-2)에 걸림 고정된다.The disk fixing holder 20 is rotated in the direction of the rotation stopper 30-2 while pressing the support plate 50 downward, and then the rotation stopper 30 by the pressing force of the support plate 50. -2) It is inserted and fastened directly below, and is caught and fixed to the rotation stop jaw 30-2.

상기 디스크 고정홀더(20)는 상기 회전멈춤턱(30-2)에 삽입 걸림되어, 상기 회전멈춤턱(30-2) 내에서 정, 역 방향으로 회전되는 것이 방지된다.The disk fixing holder 20 is inserted into the rotation stopping jaw 30-2 and is prevented from being rotated in the forward and reverse directions within the rotation stopping jaw 30-2.

상기 디스크 고정홀더(20)는 상기 그라인더 회전축(40)과 일체로 회전되는 상기 디스크 고정장치(30)에 의해 상기 그라인더 회전축(40) 방향에 대응하도록 회전되면서, 상기 디스크(10)를 회전시킨다.The disc fixing holder 20 is rotated to correspond to the direction of the grinder rotation shaft 40 by the disc fixing device 30 rotated integrally with the grinder rotation shaft 40, thereby rotating the disc 10.

상기 디스크(10)는 상기 디스크 고정홀더(20)에 의해 정방향 또는 역방향으로 회전되면서, 그라인딩 또는 연마작업을 수행한다.The disk 10 performs grinding or polishing while being rotated in a forward or reverse direction by the disk fixing holder 20 .

상기 디스크 고정홀더(20)는 내주면에 상기 회전멈춤턱(30-2) 사이로 진입되어 상기 회전멈춤턱(30-2) 직하방에 위치되되, 상면 일측에 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)과 대칭되도록 형성되어, 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림되는 음각멈춤턱(20-2A)이 형성된 음각홀더(20-1A) 또는 양각멈춤턱(20-2B)이 형성된 양각홀더(20-1B))을 형성한다.The disk fixing holder 20 enters between the rotation stopping jaws 30-2 on the inner circumferential surface and is positioned directly below the rotation stopping jaw 30-2, and the raised engaging jaw 30-3B or Engraving holder 20 formed to be symmetrical with the intaglio holding jaw 30-3A and having the embossed jaw 20-2A inserted into the embossed jaw 30-3B or the negative jaw 30-3A. -1A) or an embossed holder (20-1B) having an embossed stopper (20-2B) is formed.

상기 양각홀더(20-1B) 또는 음각홀더(20-1A)는 상기 회전멈춤턱(30-2)과 엇갈리도록 형성되어, 상기 회전멈춤턱(30-2) 사이로 진입된다.The embossed holder 20-1B or the intaglio holder 20-1A is formed so as to cross with the rotation stopping jaw 30-2 and enters between the rotation stopping jaws 30-2.

상기 양각홀더(20-1B) 또는 음각홀더(20-1A)의 갯수는 상기 회전멈춤턱(30-2) 갯수에 비례하도록 형성된다.The number of the embossed holders 20-1B or the intaglio holders 20-1A is formed in proportion to the number of the rotation stopping jaws 30-2.

상기 음각홀더(20-1A)의 음각멈춤턱(20-2A)은 상기 디스크 고정장치(30)의 양각걸림턱(30-3B)이 삽입 걸림되도록 허용한다.The intaglio stop (20-2A) of the intaglio holder (20-1A) allows the embossed protrusion (30-3B) of the disk holding device (30) to be inserted and caught.

상기 양각홀더(20-1A)의 양각멈춤턱(20-2B)은 상기 디스크 고정장치(30)의 음각걸림턱(30-3A)에 삽입 걸림된다.The embossed stop (20-2B) of the embossed holder (20-1A) is inserted into the concave stop (30-3A) of the disk fixing device (30).

상기 디스크 고정홀더(20)는 상기 음각멈춤턱(20-2A)의 함몰 깊이 또는 상기 양각 멈춤턱(20-2B)의 돌출 높이를 0.3mm ~ 2.0mm 이내로 형성하고, 그 갯수는 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A) 갯수에 비례하도록 2개 내지 4개로 형성된다.The disk fixing holder 20 forms a recessed depth of the concave stopper 20-2A or a protruding height of the embossed stopper 20-2B within 0.3mm to 2.0mm, the number of which is the embossed stopper (30-3B) or intaglio locking jaws (30-3A) are formed in 2 to 4 pieces in proportion to the number.

상기와 같이 구성되는 본 발명의 제2실시예에 따른 그라인더 디스크 고정장치는 다음과 같이 사용된다.The grinder disk holding device according to the second embodiment of the present invention configured as described above is used as follows.

이하에서는 공압그라인더(이하, 그라인더)를 기준으로 설명하고, 이에따라, 그라인더 체결을 가능하게 하는 장력조절볼트(70-2) 구조의 장력조절기(70)를 예로 들어 설명하도록 한다.Hereinafter, a pneumatic grinder (hereinafter referred to as a grinder) will be described as a standard, and accordingly, the tension regulator 70 having a tension control bolt 70-2 structure that enables the grinder to be fastened will be described as an example.

먼저, 그라인더 회전축(40)에 장력조절기(70), 테이퍼 코일스프링(60), 지지판(50)을 순차적으로 삽입한 다음 디스크 고정장치(30)의 몸체(30A) 외면에 형성된 가이드부(30-4)를 지지판 가이드홈(50-1)에 삽입하고, 디스크 고정장치(30)의 중앙에 형성된 회전축 체결부(30-1)에 장력조절기(70)를 체결한 다음 그라인더에 장력조절기(70)의 하면을 체결하면, 그라인더에 디스크 고정장치(30)의 장착이 완료된다.First, the tension regulator 70, the tapered coil spring 60, and the support plate 50 are sequentially inserted into the grinder rotating shaft 40, and then the guide portion 30- formed on the outer surface of the body 30A of the disk fixing device 30 4) is inserted into the support plate guide groove 50-1, and the tension adjuster 70 is fastened to the rotating shaft fastening part 30-1 formed in the center of the disk fixing device 30, and then the tension adjuster 70 is attached to the grinder. When the lower surface is fastened, the mounting of the disk holding device 30 to the grinder is completed.

이때, 상기 장력조절기(70)는 장력조절볼트(70-2) 구조로 형성되어, 상, 하면에 서로 대칭되는 회전축(미부호)을 형성함으로써, 상면에 형성된 회전축(미부호)을 상기 회전축 체결부(30-1)에 체결하되, 하면에 형성된 회전축(미부호)을 그라인더에 체결하여, 상기 디스크 고정장치(30)가 그라인더에 장착되도록 하는 것이다.At this time, the tension regulator 70 is formed in the structure of a tension adjusting bolt 70-2, and by forming rotation shafts (unsigned) symmetrical to each other on the upper and lower surfaces, the rotation shaft (unsigned) formed on the upper surface is fastened to the rotation shaft. While fastening to the part 30-1, by fastening the rotating shaft (unsigned) formed on the lower surface to the grinder, the disk fixing device 30 is mounted on the grinder.

그리고, 상기 테이퍼 코일스프링(60)의 장력 조절이 완료된 시점에서는, 상기 디스크고정장치(30)의 회전축 체결부(30-1)에서 상기 장력조절기(70)의 풀림이 방지되도록 하기 위해, 상기 몸체(30A)의 구멍(30B)과 상기 장력조절기(70)의 회전축(미부호) 사이에 사이에 무두볼트(80)를 체결하여, 상기 장력조절기(70)의 회전축(미부호)이 풀림되는 것을 방지한다.In addition, when the tension control of the tapered coil spring 60 is completed, the body By fastening the nod bolt 80 between the hole 30B of (30A) and the rotating shaft (unsigned) of the tension adjuster 70, the rotating shaft (unsigned) of the tension adjuster 70 is loosened. prevent.

여기서, 상기 가이드부(30-4)가 상기 지지판 가이드홈(50-1)을 따라 삽입 결합되되, 상기 회전멈춤턱(30-2) 하단이 상기 지지판 가이드홈(50-1) 주변에 걸림되어, 상기 지지판(50)이 상기 회전멈춤턱(30-2) 내측 상면에서 정해진 거리 이격된 상태를 유지한다.Here, the guide part 30-4 is inserted and coupled along the support plate guide groove 50-1, and the lower end of the rotation stopper 30-2 is caught around the support plate guide groove 50-1. , The support plate 50 maintains a state spaced apart from the inner upper surface of the rotation stopper 30-2 by a predetermined distance.

이때, 상기 장력조절기(70)의 장력조절볼트(70-2)를 상기 디스크 고정장치(30)의 회전축 체결부(30-1)의 회전축 체결부(30-1)에 나선 체결하면, 상기 장력조절기(70)가 상기 디스크 고정장치(30) 방향으로 상승 이동되면서, 상기 테이퍼 코일스프링(60)을 상방으로 가압하고, 이에따라, 상기 코일스프링(60)이 상방으로 가압되어, 상기 지지판(50)을 상기 회전멈춤턱(30-2) 방향으로 가압한다.At this time, when the tension adjusting bolt 70-2 of the tension regulator 70 is spirally fastened to the rotary shaft fastening part 30-1 of the rotary shaft fastening part 30-1 of the disk fixing device 30, the tension As the regulator 70 moves upward in the direction of the disk fixing device 30, it presses the tapered coil spring 60 upward, and accordingly, the coil spring 60 is pressed upward, and the support plate 50 is pressed in the direction of the rotation stopper (30-2).

그리고, 디스크(10)의 장력조절은 장력조절기를(70) 풀거나, 조여 조절하며, 이때, 장력조절볼트(70-2)는 멈춤턱 구실을 하면서, 상기 장력조절볼트(70-2)가 정해진 거리 이상 이동하는 것을 제한하여, 상기 디스크 고정홀더(20)의 두께에 대응하도록 상기 지지판(50)과 상기 회전멈춤턱(30-2) 사이가 "B" 거리를 유지한다.And, the tension control of the disk 10 is adjusted by loosening or tightening the tension controller 70, and at this time, the tension adjusting bolt 70-2 serves as a stopper, and the tension adjusting bolt 70-2 By restricting movement beyond a predetermined distance, a “B” distance is maintained between the support plate 50 and the rotation stopper 30-2 to correspond to the thickness of the disk fixing holder 20.

이때, 상기 지지판(50)에 디스크 고정장치(30)를 삽입하여, 상기 디스크 고정장치(30)의 회전을 방지하고 장력조절기(70)만 회전하여 장력을 조절한다.At this time, the disk fixing device 30 is inserted into the support plate 50 to prevent the disk fixing device 30 from rotating, and only the tension controller 70 rotates to adjust the tension.

특히, 상기 지지판(50)과 상기 장력조절기(70) 사이의 장력 조절 폭은 "A" 이상, "B" 이하의 간격을 갖도록 형성하며, "A"의 폭은 상기 디스크 고정홀더(20)의 음각 멈춤턱(20-2A)의 함몰깊이 또는 양각 멈춤턱(20-2B) 의 돌출 높이보다 상대적으로 더 넓어야 한다.In particular, the tension control width between the support plate 50 and the tension controller 70 is formed to have a gap of "A" or more and "B" or less, and the width of "A" is the width of the disk fixing holder 20. It should be relatively wider than the depression depth of the concave stop (20-2A) or the protruding height of the embossed stop (20-2B).

그리고, 상기 장력조절기(70)와 상기 지지판(50) 사이의 간격은 "A" 이상이여야 한다.And, the distance between the tension controller 70 and the support plate 50 should be "A" or more.

만약, 상기 장력조절기(70)와 상기 지지판(50) 사이의 간격이 "A"보다 좁게 형성될 때에는 디스크 고정홀더(20)를 디스크 고정장치(30)에 장착할 수 없는 현상이 발생하며 "A"보다 상대적으로 넓게 형성되면, 상기 디스크 고정홀더(20)의 장착력이 감소되어, 상기 디스크(10)로 절단이나 연마작업시 디스크(10)가 탈착될 위험이 있다.If the gap between the tension adjuster 70 and the support plate 50 is formed narrower than "A", a phenomenon occurs that the disk fixing holder 20 cannot be mounted on the disk fixing device 30, and "A" "If it is formed relatively wider, the mounting force of the disk fixing holder 20 is reduced, and there is a risk of the disk 10 being detached during cutting or polishing work with the disk 10.

이후, 디스크 고정장치(30)에 디스크 고정홀더(20)를 삽입하고 하부 방향으로 누르면 지지판(50)이 가이드부(30-4)를 타고 하부방향으로 밀리면서 테이퍼 코일스프링(60)을 압축하고, 이때, 디스크 고정홀더(20)가 테이퍼 코일스프링(60)의 압축량 만큼 하부방향으로 하강 이동되어 상기 회전멈춤턱(30-2) 높이보다 상대적으로 낮은 위치에 위치되면, 상기 디스크 고정장치(30)와 지지판(50) 사이의 간격은 "B" 만큼 벌어진다.Thereafter, the disk fixing holder 20 is inserted into the disk fixing device 30 and pressed downward, the support plate 50 is pushed downward along the guide part 30-4 and compresses the tapered coil spring 60. , At this time, when the disk fixing holder 20 is moved downward by the compression amount of the tapered coil spring 60 and is positioned at a position relatively lower than the height of the rotation stopper 30-2, the disk fixing device ( 30) and the support plate 50 are widened by "B".

여기서, 상기 디스크 고정홀더(20)의 양각홀더(20-1B) 또는 음각홀더(20-1A)를 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 사이로 진입시켜, 상기 디스크 고정홀더(20)를 상기 디스크 고정장치(30)에 체결한다.Here, the embossed holder 20-1B or the intaglio holder 20-1A of the disc fixing holder 20 enters between the rotation stopping jaws 30-2 of the disc fixing device 30, and the disc fixing holder (20) is fastened to the disk fixing device (30).

이때, 상기 디스크 고정장치(30)의 가이드부(30-4)는 상기 지지판 가이드홈(50-1)이 상, 하로 승강 이동하는 것을 안내함으로써, 상기 지지판(50)이 상기 디스크 고정장치(30)의 몸체(30A)를 기준으로 상, 하로 승강 이동된다.At this time, the guide part 30-4 of the disk fixing device 30 guides the up and down movement of the support plate guide groove 50-1, so that the support plate 50 moves up and down the disk fixing device 30. ) is moved up and down based on the body 30A.

즉, 상기 지지판(50)이 원위치에 위치된 경우, 상기 지지판(50)과 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 내측 상면 사이의 이격 거리는 "A"이고, 상기 디스크 고정홀더(20)에 의해 상기 지지판(50)이 누름 가압된 경우에는, 상기 지지판(50)과 상기 디스크 고정장치(30)의 회전멈춤턱(30-2) 내측 상면 사이의 이격 거리는 "B"인 것이다.That is, when the support plate 50 is located in the original position, the distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is “A”, and the disk fixing device 30 is “A”. When the support plate 50 is pressed by the holder 20, the separation distance between the support plate 50 and the inner upper surface of the rotation stopper 30-2 of the disk fixing device 30 is "B" will be.

이어서, 상기 디스크 고정홀더(20)를 누름 가압하여, 상기 지지판(50)과 가이드 고정장치(30) 사이에 디스크 고정홀더(20)가 장착 될 수 있는 공간 "B"가 형성되면, 상기 디스크 고정홀더(20)를 회전 멈춤턱(30-2) 방향으로 회전시킨 다음 상기 지지판의 가압력을 해제하면, 지지판이 테이퍼 코일스프링(60)의 복원력에 의해 상방으로 상승되면서 상기 디스크 고정홀더(20)를 상방으로 가압하여, 상기 디스크 고정홀더(20)가 상방으로 상승 이동되고, 이때, 상기 디스크 고정홀더(20)에 형성된 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)이 상기 회전멈춤턱(30-2)에 형성된 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림된다.Subsequently, when the disk fixing holder 20 is pressed and a space "B" in which the disk fixing holder 20 can be mounted is formed between the support plate 50 and the guide fixing device 30, the disk is fixed. When the holder 20 is rotated in the direction of the rotation stopper 30-2 and then the pressing force of the support plate is released, the support plate is raised upward by the restoring force of the tapered coil spring 60 and the disk fixing holder 20 is lifted. By pressing upward, the disk fixing holder 20 moves upward, and at this time, the negative stop 20-2A or the embossed stop 20-2B formed on the disk fixing holder 20 rotates. It is inserted into the embossed jaw 30-3B or the negative jaw 30-3A formed in the stopper 30-2.

이때, 상기 지지판(50)은 테이퍼 코일스프링(60)의 복원력에 의해 상방으로 상승이동 되고, 이에따라, 상기 지지판 가이드홈(50-1)이 상기 가이드 부(30-4)를 타고 상부로 이동한다.At this time, the support plate 50 moves upward by the restoring force of the tapered coil spring 60, and accordingly, the support plate guide groove 50-1 moves upward along the guide part 30-4. .

즉, 상기 지지판(50) 상승 이동에 의해 상기 디스크 고정홀더(20)가 상방으로 상승 이동되고, 이때, 상기 음각멈춤턱(20-2A)이 상기 양각걸림턱(30-3B)에 삽입 걸림되거나 혹은 상기 양각멈춤턱(20-2B)이 상기 음각걸림턱(30-3A)에 삽입 걸림되어, 상기 회전멈춤턱(30-2) 직하방에 상기 디스크 고정홀더(20)가 밀착 걸림된다.That is, the disk fixing holder 20 is moved upward by the upward movement of the support plate 50, and at this time, the negative stopper 20-2A is inserted into the embossed stopper 30-3B or caught. Alternatively, the embossed jaw 20-2B is inserted into and caught by the negative latch 30-3A, and the disk fixing holder 20 is closely engaged under the rotation stop jaw 30-2.

여기서, 상기 지지판(50)은 원상태로 복원되는 상기 테이퍼 코일스프링(60)의 장력에 의해 상기 디스크 고정홀더(20)를 상방으로 누름 가압하여, 상기 디스크고정홀더(20)가 상기 회전멈춤턱(30-2) 직하방에 밀착되도록 장착하고, 이때, 디스크 고정장치(30)와 지지판(50) 사이에는 "A" 간격에 비례하는 두께를 갖는 디스크(10)가 장착된다.Here, the support plate 50 presses the disk fixing holder 20 upward by the tension of the tapered coil spring 60 restored to its original state, so that the disk fixing holder 20 is the rotation stopper ( 30-2) It is mounted so as to be in close contact directly below, and at this time, between the disk fixing device 30 and the support plate 50, a disk 10 having a thickness proportional to the "A" interval is mounted.

이후, 그라인더 회전축(40)에 회전축 체결부(30-1)를 체결하면 그라인더에 그라인더 디스크 고정장치의 장착이 마무리된다.Thereafter, when the rotary shaft fastening part 30-1 is fastened to the grinder rotary shaft 40, the mounting of the grinder disk fixing device to the grinder is completed.

그리고, 디스크 고정홀더(20)를 디스크 고정장치(30)에 고정한후, 그라인더의 구동모터(미도시)를 작동시키면, 구동모터(미도시)의 구동력에 의해 상기 디스크 고정장치(30)가 일체로 회전되면서, 상기 디스크(10)에 회전력을 전달하고, 이때, 상기 디스크(10)로 절단 또는 연마작업을 진행하게 된다.In addition, when the drive motor (not shown) of the grinder is operated after fixing the disk fixing holder 20 to the disk fixing device 30, the disc fixing device 30 is integrated by the driving force of the drive motor (not shown). As it rotates, rotational force is transmitted to the disk 10, and at this time, the disk 10 is cut or polished.

만약, 그라인더 작업시 장착된 배터리가 소모되어 구동력이 저하되거나 혹은 작업자가 절단이나 연마작업시 과도한 힘을 가해 절단면에 디스크(10)가 끼임되는 현상이 발생되는 경우, 상기 디스크 고정홀더(20)의 음각멈춤턱(20-2A) 또는 양각멈춤턱(20-2B)이 상기 디스크 고정장치(30)의 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림된 상태를 유지함으로써, 상기 디스크 고정홀더(20)가 상기 회전멈춤턱(30-2)에서 이탈 분리되는 것을 미연에 방지할 수 있다.If the battery installed during the grinder operation is consumed and the driving force is reduced or the disk 10 is caught in the cutting surface due to excessive force applied by the operator during cutting or polishing, the disk fixing holder 20 The negative stopper (20-2A) or the embossed stopper (20-2B) is inserted into the embossed stopper (30-3B) or the negative stopper (30-3A) of the disk fixing device 30 and maintains the jammed state. By doing so, it is possible to prevent the disk fixing holder 20 from being separated from the rotation stopper 30-2 in advance.

이상에서 설명한 본 발명에 따른 그라인더 디스크 고정장치는 상기한 실시예에 한정되지 않고, 이하의 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양하게 변경하여 실시할 수 있는 범위까지 그 기술적 정신이 있다.The grinder disk fixing device according to the present invention described above is not limited to the above-described embodiment, and anyone having ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims below It has its technical spirit to the extent that it can be changed and implemented in various ways.

Claims (3)

중앙부에 상, 하로 관통된 구멍(30B)을 형성한 몸체(30A)를 구비하고, 상기 몸체(30A)의 구멍(30B) 내주면에 그라인더 회전축(40) 또는 장력조절볼0-2)를 나선방식으로 체결하는 회전축 체결부(30-1)를 형성하며, 상기 몸체(30A) 외면에 2개 내지 4개로 돌출 형성된 회전멈춤턱(30-2)을 형성하고, 상기 회전멈춤턱(30-2) 내측 상면에 하방으로 돌출 형성됨 양각걸림턱(30-3B) 또는 상방으로 함몰 형성된 음각걸림턱(30-3A)을 형성한 디스크 고정장치(30)와;A body 30A having upper and lower through holes 30B formed in the central portion, and a grinder rotary shaft 40 or a tension control ball 0-2 is installed on the inner circumferential surface of the hole 30B of the body 30A in a spiral manner. Forms a rotational shaft fastening part 30-1 fastened to, and forms a rotation stopper 30-2 protruding from two to four on the outer surface of the body 30A, and the rotation stopper 30-2 a disk fixing device 30 having a positive locking jaw 30-3B protruding downward on an inner upper surface or a negative locking jaw 30-3A formed to be recessed upward; 상기 디스크고정장치(30)의 몸체(30A) 외면에 승강 이동가능하게 결합되어, 상기 회전멈춤턱(30-2)의 내측 상면에서 정해진 거리 이격되게 위치되는 지지판(50);A support plate 50 coupled to the outer surface of the body 30A of the disk fixing device 30 so as to be able to move up and down, and spaced apart from the upper inner surface of the rotation stopper 30-2 by a predetermined distance; 장력조절너트(70-1) 또는 장력조절볼트(70-2) 구조로 형성되고, 상기 디스크 고정장치(30) 하단에 나선방식으로 체결되어, 상기 지지판(50)에서 정해진 거리 이격된 상태를 유지하는 장력조절기(70);It is formed in the structure of a tension adjusting nut 70-1 or a tension adjusting bolt 70-2, and is screwed to the lower end of the disk fixing device 30 in a spiral manner, maintaining a state spaced apart from the support plate 50 by a predetermined distance. Tension controller 70 to; 상기 지지판(50)과 상기 장력조절기(70) 사이에 설치되어, 상기 지지판(50)을 상기 디스크 고정장치(30) 방향으로 가압하는 테이퍼 코일스프링(60);a tapered coil spring 60 installed between the support plate 50 and the tension adjuster 70 to press the support plate 50 toward the disk fixing device 30; 중앙부가 상, 하로 관통되어 상기 몸체(30A) 외주면에 삽입 결합되고, 외면에 디스크(10)를 장착하며, 내주면이 상기 회전멈춤턱(30-2) 사이로 진입되어 상기 회전멈춤턱(30-2) 방향으로 회전되되, 상기 지지판(50)에 의해 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A) 방향으로 가압되어, 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림되는 디스크 고정홀더(20);The central portion is penetrated vertically and inserted into the outer circumferential surface of the body 30A, the disk 10 is mounted on the outer surface, and the inner circumferential surface enters between the rotation stopping jaws 30-2 and the rotation stopping jaw 30-2 ) direction, but is pressed by the support plate 50 in the direction of the embossed locking jaw 30-3B or the negative locking jaw 30-3A, so that the embossed locking jaw 30-3B or the negative locking jaw ( 30-3A) a disk fixing holder 20 inserted into and jammed; 를 구성하여,By configuring 그라인더 작업시 공압이나 배터리 동력이 저하되어 구동력이 저하되는 경우나 작업자가 절단이나 연마 작업시 정해진 압력 이상의 힘을 가하여 절단면에 디스크(10)가 끼는 현상이나, 연마 작업시 테이퍼 코일스프링(60)의 장력보다 상대적으로 높은 면압력을 가하여 디스크(10)가 탈착되는 현상을 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 의해 미연에 방지하는 것을 특징으로 하는 그라인더 디스크 고정장치.When the driving force is reduced due to a decrease in air pressure or battery power during grinder work, or when a worker applies force greater than a predetermined pressure during cutting or polishing, the disk 10 is caught on the cutting surface, or the tapered coil spring 60 during grinding A grinder disk fixing device characterized in that the detaching of the disk 10 is prevented in advance by applying a surface pressure relatively higher than the tension by the embossed locking jaw (30-3B) or the negative locking jaw (30-3A). 제 1항에 있어서,According to claim 1, 상기 디스크 고정홀더(20)는,The disk fixing holder 20, 내주면에 상기 회전멈춤턱(30-2) 사이로 진입되어 상기 회전멈춤턱(30-2) 직하방에 위치되되, 상면 일측에 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)과 대칭되도록 형성되어, 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A)에 삽입 걸림되는 음각멈춤턱(20-2A)이 형성된 음각홀더(20-1A) 또는 양각멈춤턱(20-2B)이 형성된 양각홀더(20-1B)를 형성한 것을 특징으로 하는 그라인더 디스크 고정장치.It enters between the rotation stop jaws 30-2 on the inner circumferential surface and is located directly below the rotation stop jaw 30-2, and the embossed jaw 30-3B or negative jaw 30-3A on one side of the upper surface The intaglio holder 20-1A or the embossed stop ( 20-2B) is formed in the embossed holder (20-1B), characterized in that the grinder disk holding device. 제 2항에 있어서,According to claim 2, 상기 디스크 고정홀더(20)는,The disk fixing holder 20, 상기 음각멈춤턱(20-2A)의 함몰 깊이 또는 상기 양각 멈춤턱(20-2B)의 돌출 높이를 0.3mm ~ 2.0mm 이내로 형성하고, 그 갯수는 상기 양각걸림턱(30-3B) 또는 음각걸림턱(30-3A) 갯수에 비례하도록 2개 내지 4개로 형성되는 것을 특징으로 하는 그라인더 디스크 고정장치.The recessed depth of the negative stop (20-2A) or the protruding height of the embossed stop (20-2B) is formed within 0.3 mm to 2.0 mm, and the number is the embossed stop (30-3B) or the negative stop A grinder disk fixing device characterized in that it is formed of two to four in proportion to the number of jaws (30-3A).
PCT/KR2023/001440 2022-02-08 2023-02-01 Grinder disk retaining device Ceased WO2023153705A1 (en)

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