TWI863665B - Vibration mechanism for grinding wheel - Google Patents

Abstract

A vibration mechanism for a grinding wheel of a grinding apparatus includes an adjustment unit and a vibration unit. The adjustment unit is provided to move an amplitude changing element of the vibration unit toward or away from the grinding wheel to adjust a distance between the amplitude changing element and the grinding wheel. The amplitude changing element is provided to vibrate the grinding wheel to move away a scrap in the grinding wheel’s pore or on the grinding wheel’s surface such that grinding performance, machining accuracy and surface quality of the grinding wheel will not be reduced due to the scrap.

Description

Vibration structure of grinding wheel

The present invention relates to a vibration structure for vibrating a grinding wheel, and in particular to a vibration structure by adjusting the distance between an oscillation unit and a grinding wheel.

During a grinding process, the generated debris will adhere to the surface or pores of the grinding wheel, thus affecting the grinding ability, processing accuracy and brightness of the grinding wheel. In order to solve the problem of debris adhering to the grinding surface or pores of the grinding wheel, a diamond pen is used to trim the grinding surface of the grinding wheel. However, this also causes the wear of the grinding wheel and the diamond pen. In addition, when the diamond pen is used to trim the grinding wheel, the grinding wheel cannot be used for the grinding process.

The main purpose of the present invention is to provide a vibration structure of a grinding wheel, which can remove debris attached to the grinding surface or in the pores of a grinding wheel in a non-contact manner by adjusting a distance between a variable amplitude plate of an oscillation unit and a grinding wheel, and improve the efficiency of the vibration structure in vibrating the grinding wheel by adjusting the distance between the variable amplitude plate and the grinding wheel.

The present invention discloses a vibration structure of a grinding wheel, which is used to vibrate a grinding wheel of a grinding device. The vibration structure includes an adjustment unit and an oscillation unit. The adjustment unit has a carrier, at least one guide rod, a base and an adjustment rod. One end of the guide rod is connected to the carrier and a rod body of the guide rod is exposed. The base is movably connected to the rod body. The adjustment rod includes a joint part and a transmission part. The joint part is rotatably connected to the carrier. The transmission part is engaged with the carrier, and is rotatably penetrated through a through hole of the base. The transmission part is used to drive the base to move toward or in the opposite direction of the carrier. The oscillation unit has a variable amplitude plate and an oscillator. The variable amplitude plate is combined with the oscillator, and the oscillator is combined with the base. The base is used to drive the oscillation unit to move the variable amplitude plate toward or in the opposite direction of the grinding wheel to adjust a distance between the variable amplitude plate and the grinding wheel.

The present invention drives the oscillation unit by the adjustment unit, so that the amplitude change plate of the oscillation unit moves toward or in the opposite direction of the grinding wheel to adjust a distance between the amplitude change plate and the grinding wheel, so as to vibrate the grinding wheel, so that the debris attached to the surface or pores of the grinding wheel is vibrated off the grinding wheel.

Please refer to Figures 1 to 3, a vibration structure 100 of a grinding wheel of the present invention is used to perform non-contact vibration on a grinding wheel 210 of a grinding device 200 to remove debris (not shown) attached to a grinding surface or a hole of the grinding wheel 210. In this embodiment, the vibration structure 100 is disposed on a protective cover 220 of the grinding device 200, but it is not limited to this. The vibration structure 100 can be disposed at different positions according to the processing space and environment of the grinding device 200 to facilitate the vibration structure 100 to vibrate the grinding wheel 210.

Referring to FIGS. 3 to 5, the vibration structure 100 includes an adjustment unit 110 and an oscillation unit 120. The adjustment unit 110 has a carrier 111, at least one guide rod 112, a base 113, and an adjustment rod 114. Referring to FIGS. 3 and 5, the guide rod 112 has an end 112a and a rod body 112b. The end 112a is coupled to the carrier 111 and exposes the rod body 112b. The base 113 is movably coupled to the rod body 112b. , and can move toward or in the opposite direction of the carrier 111. In this embodiment, the base 113 has at least one guide hole 113b, and the rod 112b is movably inserted into the guide hole 113b, so that the base 113 can move toward or in the opposite direction of the carrier 111 through the rod 112b.

Please refer to Figures 3 and 4. The adjusting rod 114 includes a coupling portion 114a and a transmission portion 114b. The coupling portion 114a is rotatably coupled to the carrier 111. In the present embodiment, the coupling portion 114a is rotatably coupled to a coupling hole 111a of the carrier 111. Preferably, the carrier 111 has a limiting member 111b, and the coupling portion 114a has an annular groove 114a1. The limiting member 111b is disposed in the coupling hole 111a, and a limiting portion 111b1 of the limiting member 111b is located in the annular groove 114a1, so that the adjusting rod 114 is rotatably coupled to the carrier 111 and the coupling portion 114a can be prevented from being separated from the coupling hole 111a.

Referring to FIGS. 3 to 5 , the transmission part 114 b is rotatably disposed through a through hole 113 a of the base 113. In the present embodiment, the transmission part 114 b drives the base 113 to move toward or in the opposite direction of the carrier 111 through the through hole 113 a. The transmission part 114 b can be selected from a screw rod, and the through hole 113 a can be selected from a screw hole. Engaged in the through hole 113a, when the adjusting rod 114 is rotated, the base 113 is limited to rotate by the rod body 112b of the guide rod 112, and the engaging portion 114a of the adjusting rod 114 is rotationally engaged in the engaging hole 111a, so that the transmission portion 114b drives the base 113 to move in the direction of or in the opposite direction of the carrier 111 through the through hole 113a.

Referring to FIGS. 3 to 5 , the oscillation unit 120 has a horn plate 121 and an oscillator 122. The horn plate 121 is coupled to the oscillator 122. In the present embodiment, the oscillation unit 120 further has a horn rod 123. The horn plate 121 is coupled to the oscillator 122 via the horn rod 123. The horn rod 123 is used to transmit the vibration energy of the oscillator 122 and increase the amplitude of the horn plate 121. Preferably, the horn plate 121 is an arc-shaped body to correspond to the grinding surface of the grinding wheel 210. The oscillator 122 can be selected from oscillation elements such as ultrasonic oscillators. The oscillator 122 Combined with the base 113, the base 113 is used to drive the vibration unit 120 to move the amplitude plate 121 toward or in the opposite direction of the grinding wheel 210 to adjust a distance D1 between the amplitude plate 121 and the grinding wheel 210, so that the amplitude plate 121 can vibrate the grinding wheel 210. In an embodiment using the vibration structure 100, a liquid (not shown) is provided between the amplitude plate 121 and the grinding wheel 210. The oscillator 122 vibrates the amplitude plate 121, and the amplitude plate 121 vibrates the liquid to generate cavitation, so as to vibrate the grinding wheel 210.

Referring to FIGS. 3 to 6 , in this embodiment, the base 113 includes a first clamping portion 113c, a second clamping portion 113d, and a clamping space 113e. The clamping space 113e is located between the first clamping portion 113c and the second clamping portion 113d. The oscillator 122 is disposed in the clamping space 113e and is clamped by the first clamping portion 113c and the second clamping portion 113d. Preferably, the base 113 includes a first clamping portion 113c, a second clamping portion 113d, and a clamping space 113e. The seat 113 includes at least one screw 113f, and the second clamping portion 113d is integrated with the first clamping portion 113c by the screw 113f. The second clamping portion 113d adjusts a distance D2 between the first clamping portion 113c and the second clamping portion 113d by the screw 113f, so that the first clamping portion 113c and the second clamping portion 113d can clamp the oscillator 122 with different outer diameters or profiles.

Please refer to FIGS. 3 to 5. In this embodiment, the vibration structure 100 further includes a coupling seat 130. The carrier 111 is coupled to the coupling seat 130. The carrier 111 is coupled to the protective cover 220 of the grinding device 200 through the coupling seat 130. However, the present invention is not limited thereto. In different embodiments, the carrier 111 can be arranged at different positions according to the processing space and environment of the grinding device 200, so as to facilitate the vibration structure 100 to vibrate the grinding wheel 210. In this embodiment, the vibration structure The structure 100 further includes at least one coupling member 140, and the coupling seat 130 further has at least one guide groove 131. The coupling member 140 is inserted into the guide groove 131, and the coupling member 140 can move in the guide groove 131. The coupling member 140 can be selected from bolts. The carrier 111 is coupled to the coupling seat 130 by the coupling member 140. The carrier 111 adjusts the position of the variable amplitude plate 121 corresponding to the grinding wheel 210 through the coupling member 140, so that the variable amplitude plate 121 can vibrate the grinding wheel 210.

Please refer to FIGS. 3 and 6 . In this embodiment, the adjustment unit 110 further has a positioning member 115. The positioning member 115 can be selected from a bolt or a positioning pin, but is not limited thereto. The positioning member 115 is disposed in the guide hole 113 b. The positioning member 115 is used to abut against the rod 112 b. When the adjustment rod 114 drives the base 113 to move the amplitude plate 121 to a predetermined position corresponding to the grinding wheel 210, the positioning member 115 abuts against the rod 112 b. In order to prevent the base 113 from being displaced due to vibration, thereby causing the amplitude changing plate 121 to collide with or move away from the grinding wheel 210, preferably, the rod 112b has a plane 112c facing the positioning member 115, and the plane 112c is used for the positioning member 115 to abut.

Please refer to Figures 3, 5 and 6. The adjustment unit 110 further has an anti-rotation member 116. The guide rod 112 has a limiting groove 112d. The anti-rotation member 116 is disposed in the guide hole 113b. A terminal end 116a of the anti-rotation member 116 is located in the limiting groove 112d to prevent the guide rod 112 or the base 113 from rotating. Preferably, the adjustment rod 114 has a head 114c. The transmission portion 114b is located between the joint portion 114a and the head 114c, and the base 113 exposes the head 114c. By rotating the head 114c, the adjustment rod 114 can be adjusted. 14c, so that the transmission part 114b drives the base 113 and the oscillation unit 120 to move, so that the amplitude change plate 121 moves toward the direction of the grinding wheel 210 or the opposite direction. More preferably, the head 114c has a plurality of displacement scales 114d, and the base 113 has a pair of position marks 113g, and the pair of position marks 113g is used to correspond to one of the displacement scales 114d. When the head 114c is rotated, the distance D1 between the amplitude change plate 121 and the grinding wheel 210 is determined by the displacement amount of the displacement scale 114d.

Referring to FIGS. 1 to 3, the present invention drives the base 113 to move toward or in the opposite direction of the carrier 111 by the adjusting rod 114 of the adjusting unit 110, and drives the oscillation unit 120 to move toward or in the opposite direction of the grinding wheel 210 by the carrier 111, so as to adjust the distance D1 between the amplitude change plate 121 and the grinding wheel 210, so as to improve the vibration efficiency and performance of the amplitude change plate 121 on the grinding wheel 210, so as to adjust the vibration efficiency and performance of the grinding wheel 210 attached to the grinding wheel 210. Debris on the surface or in the pores of the wheel 210 is vibrated away from the grinding wheel 210. In particular, during the grinding process, the grinding wheel 210 grinds the workpiece to be processed (not shown), which causes an outer diameter of the grinding wheel 210 to shrink. When the distance D1 increases, the adjustment unit 110 drives the oscillation unit 120 to move toward the grinding wheel 210 to adjust the distance D1, thereby improving the vibration efficiency and performance of the amplitude change plate 121 on the grinding wheel 210.

The scope of protection of the present invention shall be determined by the scope of the attached patent application. Any changes and modifications made by anyone familiar with this technology without departing from the spirit and scope of the present invention shall fall within the scope of protection of the present invention.

100: Vibration structure

110: Adjustment unit

111: Carrier

111a: Engagement hole

111b: Limiting piece

111b1: Limiting part

112: Guide rod

112a: End

112b: Rod

112c: Plane

112d: Limiting slot

113: Base

113a: Perforation

113b: Guide hole

113c: first clamping portion

113d: Second clamping portion

113e: Clamping space

113f: Screw

113g: Alignment mark

114: Adjustment rod

114a: Joint

114a1: Annular groove

114b: Transmission

114c: Head

114d: Displacement scale

115: Positioning piece

116: Anti-rotation parts

116a: terminal end

120: Oscillator unit

121: Luffing plate

122: Oscillator

123: Luffing rod

130: Combination seat

131:Guide groove

140:Joining parts

200: Grinding device

210: Grinding wheel

220: Protective cover

D1: Distance

D2: Distance

Figure 1: A three-dimensional view of the vibration structure of the present invention installed in a grinding device. Figure 2: A three-dimensional view of the vibration structure of the present invention. Figure 3: An exploded three-dimensional view of the vibration structure of the present invention. Figures 4-6: Cross-sectional views of the vibration structure of the present invention.

100: Vibration structure

110: Adjustment unit

111: Carrier

111a: Engagement hole

111b: Limiting parts

111b1: Limiting part

113a: Perforation

113c: First clamping part

113d: Second clamping part

113e: Clamping space

114a: Joint

114a1: Annular groove

114b: Transmission unit

114c: Head

120: Oscillator unit

121: Luffing plate

122: Oscillator

123: Luffing rod

130: Combination seat

200: Grinding device

210: Grinding wheel

220: Protective shield

D1: Distance

Claims (13)

A vibration structure of a grinding wheel is used to vibrate a grinding wheel of a grinding device. The vibration structure includes: an adjustment unit having a carrier, at least one guide rod, a base and an adjustment rod. One end of the guide rod is connected to the carrier and a rod body of the guide rod is exposed. The base is movably connected to the rod body. The adjustment rod includes a joint part and a transmission part. The joint part is rotatably connected to the carrier. The transmission part is The driving part is rotatably penetrated through a through hole of the base, and the driving part is used to drive the base to move in the direction of the carrier or in the opposite direction; and an oscillation unit has a variable amplitude plate and an oscillator, the variable amplitude plate is combined with the oscillator, and the oscillator is combined with the base, and the base is used to drive the oscillation unit to move the variable amplitude plate in the direction of the grinding wheel or in the opposite direction to adjust a distance between the variable amplitude plate and the grinding wheel. The vibration structure of the grinding wheel as claimed in claim 1, wherein the amplitude-changing plate is connected to the oscillator by an amplitude-changing rod, and the amplitude-changing plate is an arc-shaped body. The vibration structure of the grinding wheel of claim 1 further comprises a coupling seat, the carrier is coupled to the coupling seat, and the carrier is coupled to the grinding device via the coupling seat. The vibration structure of the grinding wheel of claim 3 further comprises at least one coupling member, the coupling seat has at least one guide groove, the coupling member is inserted into the guide groove, and the coupling member can move in the guide groove, the carrier is coupled to the coupling seat by the coupling member, and the carrier adjusts the position of the amplitude plate corresponding to the grinding wheel by the coupling member. The vibration structure of the grinding wheel of claim 1, wherein the transmission part is a screw, the through hole is a screw hole, and the transmission part is screwed into the through hole. The vibration structure of the grinding wheel of claim 1, wherein the carrier has a coupling hole and a limiting member, the coupling portion is rotationally coupled in the coupling hole, the coupling portion has an annular groove, the limiting member is arranged in the coupling hole, and a limiting portion of the limiting member is located in the annular groove. As in claim 1, the vibration structure of the grinding wheel, wherein the base comprises a first clamping portion, a second clamping portion and a clamping space, the clamping space is located between the first clamping portion and the second clamping portion, the oscillator is disposed in the clamping space, and the oscillator is clamped by the first clamping portion and the second clamping portion. The vibration structure of the grinding wheel of claim 7, wherein the base includes at least one screw, the second clamping part is integrated with the first clamping part by the screw, and the second clamping part adjusts a distance between the first clamping part and the second clamping part by the screw. As in claim 1, the vibration structure of the grinding wheel, wherein the adjustment unit further has a positioning member, the base has at least one guide hole, the rod body is movably inserted into the guide hole, the positioning member is arranged in the guide hole, and the positioning member is used to contact the rod body. As in claim 9, the vibration structure of the grinding wheel, wherein the rod has a plane facing the positioning member, and the plane is used for the positioning member to abut against. A vibration structure of a grinding wheel as claimed in any one of claim 1, 5 or 9, wherein the adjustment unit further has an anti-rotation member, the base has at least one guide hole, the guide rod has a limit groove, the anti-rotation member is disposed in the guide hole, and an end portion of the anti-rotation member is located in the limit groove. A vibration structure of a grinding wheel as claimed in claim 1, wherein the adjustment rod has a head, the transmission part is between the joint and the head, and the base exposes the head. The vibration structure of the grinding wheel as claimed in claim 12, wherein the head has a plurality of displacement scales.

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