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WO2016111354A1 - Outil de découpe de forme - Google Patents

Outil de découpe de forme Download PDF

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Publication number
WO2016111354A1
WO2016111354A1 PCT/JP2016/050514 JP2016050514W WO2016111354A1 WO 2016111354 A1 WO2016111354 A1 WO 2016111354A1 JP 2016050514 W JP2016050514 W JP 2016050514W WO 2016111354 A1 WO2016111354 A1 WO 2016111354A1
Authority
WO
WIPO (PCT)
Prior art keywords
axial direction
tool
cutting tool
oil supply
tooth
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/JP2016/050514
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English (en)
Japanese (ja)
Inventor
昌紘 安村
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.)
NSK Ltd
Original Assignee
NSK Ltd
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 NSK Ltd filed Critical NSK Ltd
Priority to CN201680004977.8A priority Critical patent/CN107107201B/zh
Priority to KR1020177018116A priority patent/KR101943779B1/ko
Priority to MYPI2017702416A priority patent/MY185249A/en
Publication of WO2016111354A1 publication Critical patent/WO2016111354A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/06—Profile cutting tools, i.e. forming-tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/10—Cutting tools with special provision for cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2250/00—Compensating adverse effects during turning, boring or drilling
    • B23B2250/12—Cooling and lubrication

Definitions

  • the present invention relates to an improvement of a total cutting tool for cutting an inner peripheral surface of an annular member.
  • Patent Document 1 discloses a ball bearing 1 as shown in FIG. 8 as a radial ball bearing for supporting various rotating parts such as bearing parts of various rotating machine devices.
  • the shape of the inner peripheral surface of the outer ring 2 or the inner ring 3 constituting such a ball bearing 1 is formed by, for example, cutting using a machine tool (such as a lathe) in which a total cutting tool is incorporated.
  • a machine tool such as a lathe
  • a cutting method for forming the outer ring raceway 4, the pair of shoulder portions 5a, 5b, and the pair of seal locking grooves 6a, 6b on the inner peripheral surface of the outer ring 2 will be described with reference to FIG. However, a brief explanation will be given.
  • the columnar workpiece 7 has one end in the axial direction (left end in FIG. 9) fixed to the main spindle (not shown) of the machine tool via a chuck device or the like.
  • a cylindrical portion 8 formed at the other axial end portion (the right end portion in FIG. 9) of the columnar workpiece 7 constitutes an annular member (workpiece) which is a workpiece of the cutting method.
  • the axial direction, the circumferential direction, and the radial direction refer to directions related to the total cutting tool in a state where the total cutting tool is fixed to the machine tool unless otherwise specified.
  • the overall cutting tool 10 has a cross-sectional shape of the inner peripheral surface of the outer ring 2 after processing (a virtual plane including the central axis of the outer ring 2) on a part of the outer peripheral surface near the tip in the axial direction (one axial end).
  • a tooth portion 11 having a contoured tooth tip along the cross-sectional shape) is formed.
  • the total cutting tool 10 is positioned such that the axial tip of the total cutting tool 10 is on the inner diameter side of the cylindrical portion 8. Move in the axial direction until At this time, the total cutting tool 10 is not rotating. In this state, the cutting oil is sprayed from the oil supply holes 13 opened at one end surface in the axial direction of the oil supply nozzle 12 and the fixed bush 9 as shown by arrows ⁇ 1 and ⁇ 2 in FIG. Then, the total cutting tool 10 is displaced radially outward (downward in FIG. 9) to bring the tooth portion 11 into contact with the inner peripheral surface of the cylindrical portion 8.
  • the inner peripheral surface of the cylindrical portion 8 is cut into a shape that follows the contour shape of the tooth tip of the tooth portion 11 (cross-sectional shape with respect to a virtual plane orthogonal to the axial direction), and the outer ring raceway 4 and the shoulder portion. 5a, 5b and seal locking grooves 6a, 6b are formed.
  • the oil supply nozzle 12 and the oil supply hole 13 are provided at the above-described positions, so that the cutting oil is shown at the tip of the tooth portion 11 of the total cutting tool 10 (indicated by ⁇ in FIG. 9). It is difficult to get to (part). For this reason, during cutting, the tip of the tooth portion 11 becomes hot, and there is a possibility that damage such as welding or wear may occur in the portion. When such damage occurs, it is necessary to regrind the tooth portion 11 or replace the tool, which increases the processing cost.
  • one end portion in the axial direction (back end portion in the axial direction) of the cylindrical portion 8 is closed by the bottom portion.
  • the present invention can suppress the occurrence of damage such as welding and wear at the tip of the tooth portion, and can easily discharge chips generated during processing to the outside of the annular member. It is invented to realize the structure of the die cutting tool.
  • the total cutting tool of the present invention is for rotating a work having an annular part at least in part and cutting the inner peripheral surface of the annular part in a state in which the rotation is prevented. .
  • one end in the axial direction of the annular portion of the workpiece (the end opposite to the side on which the total cutting tool is disposed) is integrated with the workpiece. It can be used suitably for the cutting method performed in the state closed by the provided bottom or the lid provided separately.
  • Such a total cutting tool of the present invention includes a shaft-shaped tool body and a tooth portion. The tool body is inserted into the annular portion at least in the axial direction at the time of processing.
  • the tooth portion is provided integrally or separately from the tool main body at the tip end in the axial direction of the tool main body, and has a tooth tip shape that matches the cross-sectional shape of the inner peripheral surface after processing of the annular portion. Have. And, in the tool body, an opening on one end side in the axial direction is opened on the surface facing the tip end side in the axial direction of the portion inserted into the annular portion of the tool body during processing, An oil supply passage for supplying cutting oil to the tooth portion is formed.
  • the tooth portion may be formed directly on the tool body, or a separate part may be connected and fixed to the tool body.
  • the tooth portion may be additionally provided at a part in the circumferential direction of the axial tip portion of the tool body.
  • at least a part of the opening on the one end side in the axial direction of the oil supply passage may be additionally opened on the tip surface of the tool body.
  • the oil supply passage may be additionally formed in a state where at least a part in the axial direction is opened radially outward.
  • the cross-sectional shape regarding the virtual plane orthogonal to the axial direction of the oil supply passage may be formed in a quadrangular shape.
  • the oil supply passage is formed in the tool main body of the total cutting tool, and the opening on one end side in the axial direction of the oil supply passage is formed in the annular portion of the workpiece during machining of the tool main body. An opening is made in the surface facing the tip end side in the axial direction of the portion inserted inside.
  • the cutting oil injected from the oil supply passage is more likely to reach the tip of the tooth portion than in the case of the conventional method described above.
  • the annular portion of the workpiece in which one end portion in the axial direction is closed by the bottom portion is cut.
  • the cutting oil sprayed from the opening on one end side in the axial direction of the oil supply passage causes a flow in a direction opposite to the direction of the injection (a direction toward the axial opening of the annular portion of the workpiece) by the bottom portion. .
  • chips generated during processing are easily discharged to the outside of the annular portion of the workpiece.
  • the removal work for removing the chips after processing is unnecessary, or even if the removal work is performed, simple work can be performed, and work efficiency can be improved. Furthermore, it can suppress that the cyclic
  • FIG. 1 The figure seen from the front end side of the total type cutting tool which shows the 1st example of embodiment of this invention. Similarly, it is a figure for demonstrating the cutting method using a general-type cutting tool, Comprising: The figure (a) which shows the state before a process, and the figure (b) which shows the state after a process.
  • the figure similar to FIG. 1 which shows the 2nd example of embodiment of this invention.
  • the figure similar to FIG. 1 which shows the 3rd example of embodiment of this invention.
  • A) And (b) is a figure similar to FIG. 2 which shows the 4th example of embodiment of this invention.
  • FIG. 2 which shows the 5th example of embodiment of this invention.
  • FIG.2 (b) shows the 6th example of embodiment of this invention.
  • Sectional drawing which shows the structure of the ball bearing provided with the outer ring
  • the general cutting tool 10a of this example is used for cutting for processing the inner peripheral surface of the annular portion of the workpiece into a desired shape. Specifically, for example, an outer ring raceway 4, a pair of shoulder portions 5a and 5b, and a pair of seal locking grooves 6a, on the inner peripheral surface of the outer ring 2 constituting the ball bearing 1 as shown in FIG. It is used for cutting to form 6b.
  • the structure of the general cutting tool 10a of this example will be described, and then a cutting method performed by incorporating the general cutting tool 10a of this example into a machine tool (for example, a lathe) will be described.
  • the total cutting tool 10a of this example is a cutting for forming the outer ring 2 by forming the outer ring raceway 4, both shoulder parts 5a, 5b, and both seal locking grooves 6a, 6b on the inner peripheral surface of the annular part of the workpiece.
  • it is made of high-speed steel (SKH51, high-speed steel), cemented carbide or the like.
  • Such an overall cutting tool 10 a includes a tool body 14 and a tooth portion 15.
  • the tool body 14 includes a proximal end side shaft portion 16 and a distal end side shaft portion 17.
  • the proximal end side shaft portion 16 is formed in a substantially cylindrical shape.
  • the distal end side shaft portion 17 is smaller in diameter than the proximal end side shaft portion 16, and from the substantially central portion of one axial end surface (the surface in FIG. 1, the left end surface in FIG. 2) of the proximal end side shaft portion 16. It is formed in a state protruding in one axial direction (the front side in FIG. 1 and the left side in FIG. 2).
  • the shape of the distal end side shaft portion 17 is not particularly limited as long as it is a shape capable of forming a tooth portion 15 described later, and is appropriately determined in consideration of rigidity and the like. In the case of this example, the distal end side shaft portion 17 is formed in a state of becoming thinner (a cross-sectional area becomes smaller) toward the distal end.
  • the tip end surface of the tip end side shaft portion 17 is a flat surface 18 having a substantially semicircular shape (tiltball shape) when viewed from one axial direction.
  • the tooth portion 15 is directly formed in a part in the circumferential direction of the tip portion of the tip side shaft portion 17. Specifically, the tooth portion 15 is one end edge in the circumferential direction of the arc portion 19 of the flat surface 18 in the circumferential direction of the distal end side shaft portion 17 (the counterclockwise side edge in FIG. It is formed at a position (position overlapping in the axial direction) aligned with a position indicated by Y in FIG. Such a tooth portion 15 is brought into contact with the inner peripheral surface of the annular portion of the rotating workpiece (rotating clockwise in FIG. 1) during processing, and this inner peripheral surface is brought into contact with the inner peripheral surface.
  • the contour shape of the tooth tip of the tooth portion 15 (cross-sectional shape related to a virtual plane including the central axis of the tip side shaft portion 17) is formed so as to be copied onto the inner peripheral surface of the annular portion of the workpiece. Is.
  • the contour shape of the tooth tip of the tooth portion 15 has a shape (a shape along the shape) that matches the cross-sectional shape of the inner peripheral surface of the outer ring 2.
  • a pair of seal groove forming portions 20a for forming both seal locking grooves 6a, 6b of the outer ring 2 at portions near both axial ends of the tooth tip of the tooth portion 15. , 20b are provided.
  • a track forming portion 21 for forming the outer ring raceway 4 of the outer ring 2 is provided at the axial center portion of the tooth tip of the tooth portion 15.
  • a pair of shoulders 5a and 5b for the outer ring 2 are formed between both axial edges of the track forming part 21 and the axially central edges of both seal groove forming parts 20a and 20b.
  • Shoulder forming portions 22a and 22b are provided.
  • the outer peripheral surface of the distal end side shaft portion 17 is aligned with the circular arc portion 19 in the circumferential direction (position overlapping with the axial direction) and aligned with the tooth tip of the tooth portion 15 in the axial direction.
  • a tooth spare part At the position to be overlapped (position overlapping with respect to the circumferential direction), a tooth spare part (the two-dot chain line X representing the shape after re-polishing in FIG. 1 and FIG. And the arc portion 19).
  • a long oil supply passage 23 is formed in the axial direction.
  • the oil supply passage 23 has a circular cross-sectional shape with respect to a virtual plane orthogonal to the axial direction.
  • the cross-sectional shape regarding the virtual plane orthogonal to the axial direction of the oil supply passage is not particularly limited.
  • the cross-sectional shape can be formed into an elliptical shape, a rectangular shape, or the like.
  • path 23 is formed in the half part of the flat surface 18 on the opposite side to the tooth
  • the opposite half portion in the circumferential direction connects the center C 19 in the circumferential direction of the arc portion 19 of the flat surface 18 and the center of curvature (center of the virtual circle) O 19 including the arc portion 19.
  • the line segment d 19 it refers to the half portion on the opposite side of the tooth portion 15 (left half portion in FIG. 1).
  • the outer ring raceway 4 the shoulders 5a, 5b, and both seal locking grooves of the outer ring 2 are formed on the inner peripheral surface of the annular part of the workpiece having at least a part of the annular part.
  • work can be selected suitably.
  • the contour shape of the tooth tip of the tooth portion 15 is appropriately changed according to the shape formed on the inner peripheral surface of the annular portion of the workpiece.
  • the cutting method of this example uses a workpiece 24 formed by forming a cylindrical portion 25 at the other axial end of a columnar material.
  • the cylindrical portion 25 corresponds to the annular portion of the present invention.
  • the cylindrical portion 25 is formed at the stage of the previous process. In such a cylindrical portion 25, one end surface in the axial direction is closed by the bottom portion 26.
  • the other axial side surface (the right side surface in FIG. 2) of the bottom portion 26 is formed in a conical surface shape that is inclined in one axial direction toward the inner side in the radial direction. The shape of the other side surface in the axial direction of the bottom portion 26 can be changed as appropriate.
  • it may be a partial spherical shape that is recessed in one axial direction as it goes radially inward.
  • One end of the workpiece 24 in the axial direction is fixed to a spindle (not shown) of the machine tool via a chuck device or the like.
  • a total cutting tool 10a is disposed on the other axial side of the cylindrical portion 25.
  • the base end portion of the base end side shaft portion 16 is supported and fixed to a part of the machine tool via a fixing bush 9.
  • the total cutting tool 10a When performing the cutting process, as shown in FIG. 2A, the total cutting tool 10a is moved in the axial direction of the total cutting tool 10a while the workpiece 24 (cylindrical portion 25) is rotated. The portion (one axial end portion) is moved in one axial direction until it is located on the inner diameter side of the cylindrical portion 25. At this time, the total cutting tool 10a is not rotating. In this state, the cutting oil from the opening of the axial end of the oil supply passage 23, keep the injection as indicated by the arrow alpha 3 in FIG.
  • a part of the cutting oil injected from the opening on one end side in the axial direction of the oil supply passage 23 moves in the radial direction of the bottom portion 26 along the other side surface in the axial direction of the bottom portion 26, and is cylindrical. While flowing along the inner peripheral surface of the cylindrical portion 25, the cylindrical portion 25 flows out from the opening on the other axial end side. Then, the total cutting tool 10 a is displaced (cut) in the radially outward direction (downward in FIG. 2), and the tooth portion 11 is brought into contact with the inner peripheral surface of the cylindrical portion 25.
  • the inner peripheral surface of the cylindrical portion 25 is shaved into a shape along the contour shape of the tooth tip of the tooth portion 11 (cross-sectional shape related to a virtual plane including the central axis of the distal end side shaft portion 17).
  • the track 4, both shoulders 5a and 5b, and both seal locking grooves 6a and 6b are formed.
  • the total cutting tool 10a of this example is displaced only in the radial direction during processing (cutting). As described above, the total cutting tool 10a is displaced in the axial direction when the tip end in the axial direction of the total cutting tool 10a is positioned on the inner diameter side of the cylindrical portion 25 and after machining. This is only when the axial tip of the die cutting tool 10 a is retracted from the inner diameter side of the cylindrical portion 25. After the cutting process is completed, the processed cylindrical portion 25 is cut off at a position indicated by ⁇ in FIG. 2B, and the process proceeds to the next step.
  • the overall cutting tool 10a of the present example configured as described above, it is possible to suppress the occurrence of damage such as welding or wear at the tip of the tooth portion 15 when performing the cutting method as described above.
  • the tool body 14 of the total cutting tool 10a is formed with an oil supply passage 23 having an opening on one end side in the axial direction and opening on the flat surface 18 of the tool body 14.
  • the cutting oil sprayed from the oil supply passage 23 can easily reach the tip of the tooth portion 15 as compared with the conventional cutting method.
  • the axial end of the oil supply passage 23 on the one end side in the axial direction is provided.
  • the cutting oil sprayed in one axial direction from the opening is guided to the other side surface in the axial direction of the bottom portion 26 and is in the direction opposite to the direction of this spraying (the other in the axial direction toward the opening of the cylindrical portion 25). ) Is triggered. For this reason, chips generated during processing are easily discharged to the outside of the cylindrical portion 25. As a result, the removal work for removing chips after processing becomes unnecessary, or a simple work can be performed even when the removal work is performed, and the work efficiency can be improved. Furthermore, it can suppress that the cylindrical part 25 after a process is damaged by a chip.
  • the other side surface in the axial direction of the bottom portion 26 is formed in a conical surface shape that is inclined in one axial direction toward the inner side in the radial direction. For this reason, the cutting oil sprayed from the opening on one axial end side of the oil supply passage 23 can be moved in the radial direction of the bottom portion 26 along the other axial side surface of the bottom portion 26. Therefore, it is possible to easily supply the cutting oil to the tip portion of the tooth portion 15 (the portion indicated by ⁇ in FIG. 2B).
  • the opening on one end side in the axial direction of the oil supply passage 23 is formed in the half of the flat surface 18 opposite to the tooth portion 15 in the circumferential direction. For this reason, it is possible to secure a margin for re-polishing a plurality of times between the opening on the one end side in the axial direction of the oil supply passage 23 and the tooth portion 15.
  • the arc portion 19 of the flat surface 18 can ensure a large length L 19 in the circumferential direction of a portion existing between the opening portion on one end side in the axial direction of the oil supply passage 23 and the tooth portion 15. As a result, the number of times that the tooth portion 15 can be re-polished can be sufficiently secured, and the processing cost can be reduced.
  • the re-polishing means that the tooth portion 15 is polished and reused as indicated by a two-dot chain line X in FIG. 1 when the tooth portion 15 is damaged or the sharpness is deteriorated. Therefore, as this re-polishing is repeated, the position of the tooth portion 15 approaches the opening on the one end side in the axial direction.
  • the opening on one end side in the axial direction of the oil supply passage 23a is formed at the end of the flat surface 18 of the tip end side shaft portion 17 opposite to the tooth portion 15 in the circumferential direction. , Formed in a portion that hangs from the flat surface 18 in a position radially outward.
  • the part formed in the base end side axial part 16 of the tool main body 14 among the oil supply path 23a is formed in the through-hole shape which only the axial direction both ends opened.
  • the part formed in the front end side shaft portion 17 of the tool main body 14 in the oil supply passage 23a is formed in a concave groove shape having both ends in the axial direction and radially outward.
  • the arc portion 19 of the flat surface 18 has a length in the circumferential direction of a portion existing between the opening portion on one end side in the axial direction of the oil supply passage 23a and the tooth portion 15. It can be ensured larger than in the case of the first example of the embodiment described above. As a result, the number of times that the tooth portion 15 can be re-polished can be sufficiently secured, and the processing cost can be reduced.
  • Other configurations, operations, and effects are the same as those of the first example of the embodiment described above.
  • FIG. 1 A third example of the embodiment of the present invention will be described with reference to FIG.
  • the position Y where the tooth portion 15 is formed in the circumferential direction on the outer peripheral surface of the base end side shaft portion 16 and the distal end side shaft portion 17 constituting the tool body 14;
  • An oil supply groove 27 having openings at both ends in the axial direction and radially outward is formed in a portion on the substantially opposite side.
  • Such an oil supply groove 27 has a quadrangular cross-sectional shape (a shape viewed from the axial direction) with respect to a virtual plane orthogonal to the central axis (axial direction) of the distal end side shaft portion 17.
  • this oil supply groove 27 corresponds to the oil supply passage of the present invention.
  • the other end in the axial direction of the oil supply groove 27 is open to the other end surface in the axial direction of the base end side shaft portion 16.
  • the arc portion 19 of the flat surface 18 includes an opening portion on one end side in the axial direction of the oil supply groove 27 and a tooth portion.
  • the length in the circumferential direction of the portion existing between 15 can be secured larger than in the case of the first example of the embodiment described above.
  • the number of times that the tooth portion 15 can be re-polished can be sufficiently secured, and the processing cost can be reduced.
  • Other configurations, operations, and effects are the same as those of the first example of the embodiment described above.
  • FIG. 5 shows another example of a cutting method that is performed by incorporating any one of the first to third examples of the overall cutting tools 10a, 10b, and 10c in the machine tool.
  • the total cutting tool 10a of the first example of the embodiment described above is used.
  • the outer ring raceway 4 the shoulders 5a, 5b, and both seals of the outer ring 2 are provided on the inner peripheral surface of the annular member. This is a cutting method for forming the grooves 6a and 6b.
  • the other half in the axial direction of the cylindrical workpiece 28 having a larger dimension in the axial direction than the outer ring 2 corresponds to the annular portion of the present invention.
  • a workpiece 28 is open at both ends in the axial direction. Therefore, in the case of this example, the opening on one end side in the axial direction of the work 28 is supported by a lid 29 constituting a part of a chuck device for supporting and fixing the work 28 to a main shaft (not shown) of the machine tool. It is blocking.
  • the structure of the lid is not particularly limited as long as it is a shape that closes one end of the cylindrical workpiece 28 in the axial direction.
  • the other side surface in the axial direction of the lid 29 can be formed in a conical surface like the other side surface in the axial direction of the bottom portion 26 of the first example of the embodiment described above.
  • Other configurations, operations, and effects are the same as those of the first example of the embodiment described above.
  • FIG. 6 shows another example of a cutting method that is performed by incorporating any one of the first to third examples of the overall cutting tools 10a, 10b, and 10c in the machine tool.
  • the total cutting tool 10a of the first example of the embodiment described above is used.
  • the cutting method of this example is similar to the first example of the above-described embodiment, on the inner peripheral surface of the annular portion of the workpiece, the outer ring raceway 4 of the outer ring 2, both shoulder portions 5a, 5b, and both seals. This is a cutting method for forming the locking grooves 6a and 6b.
  • the workpiece 28a having the same axial dimension as the axial dimension of the outer ring 2 corresponds to the annular portion of the present invention.
  • Such a workpiece 28a is supported and fixed to the spindle of the machine tool by externally fixing and fixing the grip portion 30 of the chuck device to the outer peripheral surface thereof.
  • Such a workpiece 28a is open at both ends in the axial direction. Therefore, in the case of this example, the opening on the one end side in the axial direction of the work 28 a is closed by the lid 31.
  • the lid body 31 has a bottomed cylindrical shape including a cylindrical portion 32 and a bottom portion 33 that closes one axial end portion of the cylindrical portion 32.
  • Such a lid 31 is supported by a part of the machine tool in a state where the other axial end surface (the right end surface in FIG. 6) of the cylindrical portion 32 is in contact with the one axial end surface of the workpiece 28a.
  • the other axial side surface of the lid body 31 is formed in a flat surface shape.
  • the other side surface in the axial direction of the lid 31 can be formed in a conical surface shape like the other side surface in the axial direction of the bottom portion 26 of the first example of the embodiment described above.
  • Other configurations, operations, and effects are the same as those of the first example of the embodiment described above.
  • the total cutting tool 10d of this example is a cutting process for forming a pair of chamfered portions 34a and 34b at both axial ends of the inner peripheral surface of the inner ring 3 constituting the ball bearing 1 as shown in FIG. Used for.
  • the tooth portion 15a constituting the total cutting tool 10d of the present example is formed with a pair of chamfer forming portions 35a and 35b for forming double-side chamfered portions 34a and 34b at both ends in the axial direction.
  • a portion between the double-sided forming portions 35a and 35b in the axial direction is formed with a flat portion 36 whose outer diameter does not change in the axial direction.
  • the flat portion 36 cuts the portion between the double-sided chamfered portions 34a and 34b on the inner peripheral surface of the inner ring 3. Since the cutting method method using the general cutting tool 10d as described above is substantially the same as that in the first example of the above-described embodiment, the description thereof is omitted. Other configurations and operations / effects are also the same as in the first example of the embodiment described above.
  • the total cutting structure of each example of the above-described embodiment can be used as appropriate.
  • the object of the general cutting tool of the present invention and the cutting method using the general cutting tool is not limited to the outer ring and the inner ring of the ball bearing described in each example of the embodiment described above, but various annular members. Can be targeted.
  • path can also be formed in parts other than the front end surface of a tool main body.
  • the total type cutting tool of each example of embodiment mentioned above employ
  • gear part provided separately to a tool main body can also be employ

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un outil de découpe de forme (10a) qui comprend un corps d'outil (14) et une section de dent (15) formée sur une partie circonférentielle à proximité de la pointe de la section d'arbre d'extrémité avant (17) du corps d'outil (14). Un passage de graissage (23), dont l'ouverture au niveau d'une extrémité dans la direction axiale s'ouvre sur une surface plate (18) qui est la face d'extrémité avant de la section d'arbre d'extrémité avant (17), est formé dans le corps d'outil (14). Pendant la découpe, une huile de découpe est fournie depuis l'ouverture au niveau d'une extrémité du passage de graissage (23) dans la direction axiale. En conséquence, il est possible de limiter l'apparition de dommages tels que des dépôts ou une abrasion sur le bord avant de la section de dent (15), et l'évacuation de copeaux générés pendant l'usinage vers l'extérieur d'un élément circulaire est facilitée.
PCT/JP2016/050514 2015-01-09 2016-01-08 Outil de découpe de forme Ceased WO2016111354A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201680004977.8A CN107107201B (zh) 2015-01-09 2016-01-08 成形切削工具
KR1020177018116A KR101943779B1 (ko) 2015-01-09 2016-01-08 총형 절삭 공구
MYPI2017702416A MY185249A (en) 2015-01-09 2016-01-08 Form cutting tool, machine tool, and manufacturing method of radial bearing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015003407A JP6319106B2 (ja) 2015-01-09 2015-01-09 総型切削工具、工作機械及びラジアル軸受の製造方法
JP2015-003407 2015-01-09

Publications (1)

Publication Number Publication Date
WO2016111354A1 true WO2016111354A1 (fr) 2016-07-14

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PCT/JP2016/050514 Ceased WO2016111354A1 (fr) 2015-01-09 2016-01-08 Outil de découpe de forme

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CN112091249A (zh) * 2020-09-04 2020-12-18 松源机械制造有限公司 瓶胚注塑模型加工刀具及其加工模型的方法
JP7544300B1 (ja) 2024-02-06 2024-09-03 株式会社タンガロイ ボディ及び切削工具

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MY185249A (en) 2021-04-30
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JP6319106B2 (ja) 2018-05-09
CN107107201B (zh) 2019-05-31
JP2016128195A (ja) 2016-07-14

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