CN220718974U

CN220718974U - Clamp for polishing

Info

Publication number: CN220718974U
Application number: CN202322376099.2U
Authority: CN
Inventors: 朱岩; 郭富城; 李伟斌; 白书争; 魏广智
Original assignee: SF Diamond Co Ltd
Current assignee: SF Diamond Co Ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-04-05
Anticipated expiration: 2033-09-01

Abstract

The utility model belongs to the field of machine tools, devices or processes for grinding or polishing, and particularly relates to a polishing clamp. In order to solve the technical problems that in the prior art, the alloy end of polycrystalline diamond and a clamp can continuously generate rotary friction, so that the alloy end is deeply scratched, defective products are produced, and the yield is reduced, the utility model provides a polishing clamp which comprises a clamp substrate, wherein the upper end of the clamp substrate is provided with a connecting end matched with a pressing head of a pressing mechanism, the lower end of the clamp substrate is provided with a mounting groove for mounting a polycrystalline diamond compact, and an elastic pad for contacting with an alloy end stop of the polycrystalline diamond compact is arranged above the mounting groove. Through setting up the elastic cushion in the mounting groove top, can make alloy end and elastic cushion contact and rub, because the hardness of elastic cushion is lower, so can avoid the alloy end to appear deep fish tail effectively to improve the yields.

Description

Clamp for polishing

Technical Field

The utility model belongs to the field of machine tools, devices or processes for grinding or polishing, and particularly relates to a polishing clamp.

Background

The polycrystalline diamond compact is formed by sintering a tungsten carbide hard alloy matrix and diamond and comprises an alloy end and a diamond end. In the process of machining the polycrystalline diamond compact, it is necessary to polish the diamond face of the diamond end. The patent of the utility model with the grant number of CN 217143497U and the grant date of 2022.08.09 discloses a water-cooling polishing clamp which comprises a clamp main body (namely a clamp base body), wherein the clamp main body comprises a connecting end which is arranged above the clamp main body and is used for being matched with a pressure head of a pressing mechanism, the connecting end comprises a pressure head groove and a rotation stopping groove, and the clamp main body also comprises an installation groove which is arranged below the clamp main body and is used for installing a polycrystalline diamond compact.

When the clamp is used for processing the polycrystalline diamond compact product, the pressing head of the pressing mechanism is matched with the pressing head groove and the rotation stopping groove to drive the clamp to rotate, meanwhile, the pressing head of the pressing mechanism is pressed on the pressing head groove to enable high-speed rotary grinding to be carried out between the polycrystalline diamond and the diamond grinding wheel, but rotary friction can be continuously generated between an alloy end of the polycrystalline diamond and the clamp, thereby deep scratch is caused on the alloy end, machining defective products are generated, and the yield is reduced.

Disclosure of Invention

The utility model aims to provide a polishing clamp, which solves the technical problems that in the prior art, the alloy end of polycrystalline diamond is subjected to deep scratch, machining defective products are generated and the yield is reduced due to the fact that the alloy end of polycrystalline diamond is subjected to continuous rotary friction with the clamp.

In order to achieve the above object, the technical scheme of the polishing clamp provided by the utility model is as follows:

the utility model provides a polishing anchor clamps, includes the anchor clamps base member, the upper end of anchor clamps base member is equipped with and is used for pressing down the pressure head matched with link of mechanism, and the lower extreme of anchor clamps base member is equipped with the mounting groove that is used for installing polycrystalline diamond compact, the top of mounting groove is equipped with and is used for the elastic pad with the alloy end backstop contact of polycrystalline diamond compact.

The beneficial effects are as follows: the utility model provides an improved utility model. Through setting up the elastic cushion in the mounting groove top, can make alloy end and elastic cushion contact and rub, because the hardness of elastic cushion is lower, so can avoid the alloy end to appear deep fish tail effectively to improve the yields.

Still further, the anchor clamps base member includes first anchor clamps base member and second anchor clamps base member, the link sets up on first anchor clamps base member, the mounting groove sets up on the second anchor clamps base member and is the logical groove that link up from top to bottom, the elastic pad sets up between first anchor clamps base member and second anchor clamps base member, first anchor clamps base member and second anchor clamps base member are connected so that second anchor clamps base member can rotate with first anchor clamps base member is synchronous.

The beneficial effects are as follows: for the technical scheme that the elastic pad is directly adhered to the clamp base body from the lower part of the mounting groove, the clamp base body is of a split structure, so that the elastic pad can be conveniently arranged between the first clamp base body and the second clamp base body, and the elastic pad can be conveniently fixed and replaced.

Still further, the second anchor clamps base member includes the bottom plate, with bottom plate perpendicular connection's curb plate and jackscrew, be equipped with the perforation that runs through the bottom plate on the bottom plate, the perforation constitutes the mounting groove, first anchor clamps base member is located the space that the curb plate encloses, be equipped with the screw hole that runs through the curb plate on the curb plate, the jackscrew is installed at the screw hole and is propped on first anchor clamps base member so that second anchor clamps base member can rotate with first anchor clamps base member is synchronous.

The beneficial effects are as follows: the first clamp base body and the second clamp base body can be conveniently and fixedly connected through the side plates and the jackscrews, so that synchronous rotation of the first clamp base body and the second clamp base body is realized. Simultaneously, first anchor clamps base member and second anchor clamps base member pass through jackscrew fixed connection, and the jackscrew can be propped on the not high position of first anchor clamps base member, so the distance between the bottom plate of first anchor clamps base member and second anchor clamps base member can be adjusted through the position that the jackscrew was propped on first anchor clamps base member to make the mounting groove adapt to the polycrystalline diamond compact of not co-altitude.

Further, the side plates are annular side plates.

The beneficial effects are as follows: the side plates are arranged to be circular side plates, the structure is simple, and the elastic pad can be limited in all directions.

Further, the side plates and the bottom plate enclose a cylindrical cavity, and the diameter of the elastic pad is matched with the inner diameter of the cylindrical cavity.

The beneficial effects are as follows: the diameter of the elastic pad is adapted to the inner diameter of the cylindrical cavity, so that the alloy ends of the polycrystalline diamond compact can be ensured to be contacted with the elastic pad. Meanwhile, the diameter of the elastic pad is matched with the inner diameter of the cylindrical cavity, so that the elastic pad does not need to be bent and fixed before the first clamp base body and the second clamp base body are fixed together during installation, and the installation is convenient.

Furthermore, the jackscrews are provided with at least two jackscrews and are uniformly distributed along the circumferential direction of the side plate.

The beneficial effects are as follows: the first clamp base body can be positioned at different positions in the space surrounded by the side plates by arranging a plurality of jackscrews.

Still further, the number of the mounting grooves is at least two.

The beneficial effects are as follows: through setting up a plurality of mounting grooves, can polish a plurality of polycrystalline diamond compacts simultaneously. Meanwhile, due to the fact that the heights of different polycrystalline diamond compacts are different due to product tolerance or product specification and the like, when a plurality of mounting grooves are directly formed in a polishing clamp in the prior art, the polishing machine cannot simultaneously contact all the polycrystalline diamond compacts in the mounting grooves, so that the polishing machine cannot simultaneously polish all the polycrystalline diamond compacts in the mounting grooves, and polishing efficiency is low. But in this technical scheme, polishing anchor clamps still include the elastic cushion, and the elastic cushion can compensate the tolerance between the polycrystalline diamond compact of same specification to make the burnishing machine polish a plurality of polycrystalline diamond compact simultaneously, improve polishing efficiency.

Further, the number of the mounting grooves is at least two, the number of the elastic pads is one, and the elastic pads are located above the mounting grooves.

The beneficial effects are as follows: for the technical scheme of installing a plurality of elastic pads, only one elastic pad is needed to be installed, the installation is convenient, the alloy ends of the polycrystalline diamond compact are all contacted with the elastic pads, and the alloy ends can be effectively prevented from being scratched.

Still further, the mounting groove includes at least two peripheral mounting grooves evenly spaced about the rotational axis of the clamp base.

The beneficial effects are as follows: the revolution speed of the polycrystalline diamond compacts in each peripheral mounting groove is the same, and the rotation speed along the axis of the polycrystalline diamond compacts is basically the same, so that the polycrystalline diamond compacts can be polished simultaneously, and the polishing efficiency is improved.

Still further, the mounting slots further include a center mounting slot centered in each of the peripheral mounting slots.

The beneficial effects are as follows: the polishing speed of the polycrystalline diamond compact in the central mounting groove is low, and different polishing requirements of different polycrystalline diamond compacts can be met.

Drawings

FIG. 1 is a schematic view of an angle of a polishing jig of the present utility model;

FIG. 2 is a schematic view of a polishing jig according to another aspect of the present utility model;

FIG. 3 is a bottom view of the polishing jig of the present utility model;

FIG. 4 is a top view of the polishing jig of the present utility model;

FIG. 5 is a side view of the polishing jig of the present utility model;

fig. 6 is a cross-sectional view of the polishing jig of the present utility model.

Reference numerals illustrate:

1. a first clamp base; 11. a connection end; 2. a second clamp base; 21. a jackscrew; 22. a mounting groove; 3. an elastic pad.

Detailed Description

The present utility model is described in further detail below with reference to examples.

Specific example 1 of polishing jig provided by the present utility model:

an object of the present embodiment is to provide a polishing jig that avoids the alloy end of polycrystalline diamond compact to be scratched during polishing, and through setting up the elastic pad that cooperates with the alloy end backstop of polycrystalline diamond compact in the mounting groove top that is used for installing polycrystalline diamond compact, can avoid the alloy end to be scratched, improves the yields.

As shown in fig. 1 to 6, this embodiment provides a polishing jig, including a jig base, the upper end of the jig base is provided with a connection end 11 for cooperating with a pressing head of a pressing mechanism, the lower end of the jig base is provided with a mounting groove 22 for mounting a polycrystalline diamond compact, and an elastic pad 3 for contacting with an alloy end stop of the polycrystalline diamond compact is provided above the mounting groove 22.

By arranging the elastic pad 3 above the mounting groove 22, the alloy end can be contacted with the elastic pad 3 and rubbed, and the alloy end can be effectively prevented from being scratched deeply due to lower hardness of the elastic pad 3, so that the yield is improved.

In order to facilitate installation of the elastic pad 3, in this embodiment, the clamp base includes a first clamp base 1 and a second clamp base 2, the connection end 11 is disposed on the first clamp base 1, the installation groove 22 is disposed on the second clamp base 2 and is a through groove penetrating up and down, the elastic pad 3 is disposed between the first clamp base 1 and the second clamp base 2, and the first clamp base 1 and the second clamp base 2 are connected so that the second clamp base 2 can rotate synchronously with the first clamp base 1.

For the technical scheme that the elastic pad 3 is directly adhered to the clamp base body from the lower side of the mounting groove 22, the clamp base body is in a split structure, so that the elastic pad 3 can be conveniently arranged between the first clamp base body 1 and the second clamp base body 2, and the elastic pad 3 can be conveniently fixed and replaced.

The second clamp base body 2 comprises a bottom plate, a side plate and jackscrews 21, wherein the side plate is perpendicularly connected with the bottom plate, through holes penetrating through the bottom plate are formed in the bottom plate, the through holes form mounting grooves 22, the first clamp base body 1 is located in a space surrounded by the side plate, threaded holes penetrating through the side plate are formed in the side plate, and the jackscrews 21 are mounted in the threaded holes and propped against the first clamp base body 1 so that the second clamp base body 2 can synchronously rotate along with the first clamp base body 1.

The first clamp base body 1 and the second clamp base body 2 can be conveniently and fixedly connected through the side plates and the jackscrews 21, so that synchronous rotation of the first clamp base body 1 and the second clamp base body 2 is realized. Simultaneously, the first clamp base body 1 and the second clamp base body 2 are fixedly connected through the jackscrews 21, the jackscrews 21 can be propped against positions of different heights of the first clamp base body 1, so that the distance between the bottom plates of the first clamp base body 1 and the second clamp base body 2 can be adjusted through the positions of the jackscrews 21 propped against the first clamp base body 1, and the polycrystalline diamond composite sheet is suitable for polycrystalline diamond composite sheets of different heights in the mounting grooves 22.

In order to be convenient for connect first anchor clamps base member 1 and second anchor clamps base member 2, in this embodiment, the curb plate is the ring-shaped curb plate, and the curb plate encloses into the cylinder chamber with the bottom plate, and the diameter of elastic pad and the internal diameter adaptation in cylinder chamber, jackscrew are equipped with two at least and set up along the circumference equipartition of curb plate.

The side plates are arranged to be circular side plates, the structure is simple, and the elastic pad can be limited in all directions. The diameter of the elastic pad is adapted to the inner diameter of the cylindrical cavity, so that the alloy ends of the polycrystalline diamond compact can be ensured to be contacted with the elastic pad. Meanwhile, the diameter of the elastic pad is matched with the inner diameter of the cylindrical cavity, so that the elastic pad does not need to be bent and fixed before the first clamp base body and the second clamp base body are fixed together during installation, and the installation is convenient. The first clamp base body can be positioned at different positions in the space surrounded by the side plates by arranging a plurality of jackscrews.

In order to improve polishing efficiency, in the present embodiment, the number of the mounting grooves 22 is at least two, specifically, the number of the mounting grooves 22 is seven. The mounting groove 22 includes at least two peripheral mounting grooves arranged at regular intervals around the rotation axis of the jig base, specifically, the number of peripheral mounting grooves is six. The peripheral mounting grooves are arranged on the same circumference at intervals, and the circle center of the circumference is positioned on the axis of the clamp base body. The mounting slots 22 also include a central mounting slot centered in each peripheral mounting slot.

By providing a plurality of mounting slots 22, a plurality of polycrystalline diamond compacts can be polished simultaneously. Meanwhile, due to the fact that the heights of different polycrystalline diamond compacts are different due to product tolerance or product specification and the like, when a plurality of mounting grooves 22 are directly formed in a polishing clamp in the prior art, a polishing machine cannot simultaneously contact all the polycrystalline diamond compacts in the mounting grooves 22, so that the polishing machine cannot simultaneously polish all the polycrystalline diamond compacts in the mounting grooves 22, and polishing efficiency is low. But in this technical scheme, polishing anchor clamps still include the elastic pad 3, and the tolerance between the polycrystalline diamond compact of same specification can be compensated to the elastic pad 3 to make the burnishing machine polish a plurality of polycrystalline diamond compact simultaneously, improve polishing efficiency. The mounting grooves 22 are arranged on the same circumference at intervals, and the circle centers of the circumferences are positioned on the axis of the clamp base body, so that the distances between the polycrystalline diamond compacts in each mounting groove 22 and the axis are the same, and therefore the revolution speeds of the polycrystalline diamond compacts in each mounting groove 22 are the same and the rotation speeds of the polycrystalline diamond compacts along the axes are basically the same, and the polycrystalline diamond compacts can be polished simultaneously, and the polishing efficiency is improved. The polishing speed of the polycrystalline diamond compact in the central mounting groove is low, and different polishing requirements of different polycrystalline diamond compacts can be met.

In order to facilitate the installation of the elastic pad 3, in the present embodiment, the number of the elastic pads 3 is one, and the elastic pads 3 are located above the respective installation grooves 22. For the technical scheme of installing a plurality of elastic pads, only one elastic pad 3 is required to be installed, the installation is convenient, the alloy ends of the polycrystalline diamond compact are all contacted with the elastic pads, and the alloy ends can be effectively prevented from being scratched.

To avoid mixing, in this embodiment, all of the mounting slots 22 are identical mounting slots 22. The mounting grooves 22 are arranged to be identical, so that a plurality of polycrystalline diamond compacts with the same specification can be clamped at one time, and the phenomenon that the polycrystalline diamond compacts are mixed when the specifications of the polycrystalline diamond compacts are similar is avoided. Of course, in other embodiments, the second fixture base is provided with mounting grooves adapted to polycrystalline diamond compact products of various specifications, and the differences between the different mounting grooves are large so that a worker can distinguish the polycrystalline diamond compact products of different specifications only by naked eyes, thereby avoiding the generation of mixed sheets.

Specific example 2 of polishing jig provided by the present utility model:

the purpose of this embodiment is to provide different arrangement modes of the elastic pad, and the main difference between this embodiment and the specific embodiment 1 is that: in this embodiment, there are a plurality of elastic pads, the first clamp base and the second clamp base are integrally formed, the elastic pads are bonded in the mounting grooves, and the elastic pads are bonded in each mounting groove.

Specific example 3 of polishing jig provided by the present utility model:

an object of the present embodiment is to provide a different fixing manner of the first fixture base and the second fixture base, and the main difference between the present embodiment and the specific embodiment 1 is that: in this embodiment, female threads are provided on the side plates of the second clamp base, male threads are provided on the second clamp base, and the first clamp base is in threaded connection with the second clamp base. The direction of the threaded connection of the first clamp base body and the second clamp base body is opposite to the rotating direction of the clamp base bodies, so that the first clamp base body and the second clamp base body are prevented from being scattered when the clamp base bodies rotate.

Specific example 4 of polishing jig provided by the present utility model:

the purpose of this embodiment is to provide another different fixing manner of the first fixture base and the second fixture base, and the main difference between this embodiment and the specific embodiment 1 is that: in this embodiment, the lower end of the first clamp base protrudes outwards to form a flange, and the first clamp base and the second clamp base are connected through the flange.

Specific example 5 of polishing jig provided by the present utility model:

the purpose of this embodiment is to provide a different side plate, and the main difference between this embodiment and embodiment 1 is that: in this embodiment, the quantity of curb plate is three, and three curb plate interval sets up, all is equipped with the screw hole that runs through the curb plate on the curb plate.

Specific example 6 of polishing jig provided by the present utility model:

the purpose of this embodiment is to provide a different side plate, and the main difference between this embodiment and embodiment 1 is that: in this embodiment, the number of the side plates is four, the four side plates are located at four corners of a non-square rectangle, and threaded holes penetrating through the side plates are formed in the four side plates.

Specific example 7 of polishing jig provided by the utility model:

the purpose of this embodiment is to provide a different elastic pad, and the main difference between this embodiment and embodiment 1 is that: in this embodiment, only one mounting groove is provided, the area of the elastic pad is smaller than the area of the alloy end of the polycrystalline diamond compact contacted with the elastic pad, that is, the area of the elastic pad is not matched with the area of the cylindrical cavity formed by the side plate and the bottom plate, the elastic pad is adhered to the first clamp base body, the elastic pad is circular, the alloy end is also circular, and the centers of circles of the elastic pad and the alloy end coincide so that the rotating shafts of the elastic pad and the alloy end coincide. When polishing, the outer edge of the alloy end is not contacted with the first clamp matrix and the elastic pad, so that the alloy end is prevented from being scratched by the first clamp matrix, and the yield is improved.

Specific example 8 of polishing jig provided by the present utility model:

the purpose of this embodiment is to provide a different number of jackscrews, and the main difference between this embodiment and the specific embodiment 1 is that: in this embodiment, there is only one jackscrew, the jackscrew is propped against one side of the first clamp base, and one side of the first clamp base away from the jackscrew is propped against the side plate, so that the first clamp base and the second clamp are connected.

Specific example 9 of polishing jig provided by the present utility model:

the purpose of this embodiment is to provide a different number of mounting slots, and the main difference between this embodiment and embodiment 1 is that: in this embodiment, there is only one mounting slot.

Specific example 10 of polishing jig provided by the utility model:

the purpose of this embodiment is to provide a different elastic pad, and the main difference between this embodiment and embodiment 1 is that: in this embodiment, the area of the elastic pad is larger than the area of the lower surface of the first clamp base body, the elastic pad is a cylindrical elastic pad, and a groove for the first clamp base body to insert is formed in the upper end of the elastic pad, so that the elastic pad and the first clamp base body are conveniently fixed together.

Specific example 11 of polishing jig provided by the present utility model:

the purpose of this embodiment is to provide a different arrangement manner of the installation groove, and the main difference between this embodiment and the specific embodiment 1 is that: in this embodiment, peripheral mounting slots are not included, with the axis of the central mounting slot coinciding with the axis of rotation of the clamp base.

Specific example 12 of polishing jig provided by the utility model:

the purpose of this embodiment is to provide another different arrangement of the mounting slots, and the main difference between this embodiment and embodiment 1 is that: in this embodiment, the center mounting groove is not included.

Finally, it should be noted that the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the foregoing embodiments, but may be modified without inventive effort or equivalent replacement of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a polishing anchor clamps, includes the anchor clamps base member, the upper end of anchor clamps base member is equipped with and is used for pressing down the pressure head matched with link (11) of mechanism, and the lower extreme of anchor clamps base member is equipped with mounting groove (22) that are used for installing polycrystalline diamond compact, its characterized in that, the top of mounting groove (22) is equipped with and is used for the elastic pad (3) with the alloy end backstop contact of polycrystalline diamond compact.

2. The polishing jig according to claim 1, wherein the jig base comprises a first jig base (1) and a second jig base (2), the connection end (11) is provided on the first jig base (1), the mounting groove (22) is provided on the second jig base (2) and is a through groove penetrating up and down, the elastic pad (3) is provided between the first jig base (1) and the second jig base (2), and the first jig base (1) and the second jig base (2) are connected so that the second jig base (2) can be rotated in synchronization with the first jig base (1).

3. The polishing jig according to claim 2, wherein the second jig base body (2) comprises a bottom plate, a side plate vertically connected to the bottom plate, and a jackscrew (21), the bottom plate is provided with a through hole penetrating through the bottom plate, the through hole forms a mounting groove (22), the first jig base body (1) is located in a space surrounded by the side plate, the side plate is provided with a threaded hole penetrating through the side plate, and the jackscrew (21) is mounted in the threaded hole and is propped against the first jig base body (1) so that the second jig base body (2) can synchronously rotate with the first jig base body (1).

4. The polishing jig according to claim 3, wherein the side plate is a circular side plate.

5. A polishing jig according to claim 4, wherein the side plates and the bottom plate define a cylindrical cavity, and the diameter of the elastic pad (3) is adapted to the inner diameter of the cylindrical cavity.

6. The polishing jig according to claim 4 or 5, wherein the top threads (21) are provided at least two and uniformly distributed along the circumferential direction of the side plate.

7. The polishing jig according to any one of claims 1 to 5, wherein the number of the mounting grooves (22) is at least two.

8. The jig for polishing according to any one of claims 2 to 5, wherein the number of the mounting grooves (22) is at least two, the number of the elastic pads (3) is one, and the elastic pads (3) are located above the respective mounting grooves (22).

9. The polishing clamp according to claim 7, wherein the mounting groove (22) comprises at least two peripheral mounting grooves evenly spaced about the axis of rotation of the clamp base.

10. The polishing jig according to claim 9, wherein the mounting groove (22) further comprises a center mounting groove at the center of each peripheral mounting groove.