CN218658437U

CN218658437U - Grinding tool

Info

Publication number: CN218658437U
Application number: CN202223263540.8U
Authority: CN
Inventors: 杨涛; 耿德占
Original assignee: Zhongke Aier Beijing Technology Co Ltd
Current assignee: North Ic Technology Innovation Center Beijing Co ltd; Zhongke Aier Beijing Technology Co Ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-03-21
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a grinding tool relates to machining technical field to when the one end cross-section of solution work piece was square, the fixed not firm problem of three-jaw chuck to the part that has square structure. Grind frock includes: the clamp comprises a base, a clamp seat and a fastener, wherein one end of the base is cylindrical and is used for being fixedly connected with a three-jaw chuck, and the other end of the base is provided with a cavity; the clamping seat is arranged in the cavity and comprises a supporting plate and a plurality of fixing plates, the fixing plates are uniformly arranged along the circumferential direction of the supporting plate and are fixedly connected with the supporting plate, and each fixing plate is respectively used for being parallel to one side wall of the part to be ground; one end and the base of fastener are connected, and the other end and the fixed plate butt of fastener for apply the effort of keeping away from the inner wall of cavity to the fixed plate, make the fixed plate take place to deform and the clamping part. The utility model provides a grind frock is used for the fixed part that has the direction structure, and guarantees the stationary stability.

Description

Grinding tool

Technical Field

The utility model relates to the technical field of machining, especially, relate to a grind frock.

Background

Lapping is an abrasive precision machining method in which a lapping tool is used to grind off a very thin layer of metal from the surface of a workpiece on a fine machining basis. Most of the parts produced today require grinding processes, especially in gas delivery systems in the semiconductor industry, where the parts are more subjected to grinding processes to meet higher use requirements.

A common grinding method is to fix the part to be ground on a three-jaw chuck of a grinding machine and then grind the part.

When the cross-section of one end of the part is non-circular, the three-jaw chuck is not firm in fixing the part with the non-circular structure, and the square structure is easy to fall off in the grinding process, so that the machining accident is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grind frock for the fixed part that has the direction structure, and guarantee the stationary stability.

In order to realize the above-mentioned purpose, the utility model provides a grind frock, a serial communication port, include:

one end of the base is cylindrical and is used for being fixedly connected with the three-jaw chuck, and the other end of the base is provided with a cavity;

the clamping seat is arranged in the cavity and comprises a supporting plate and a plurality of fixing plates, the fixing plates are uniformly arranged along the circumferential direction of the supporting plate and are fixedly connected with the supporting plate, and each fixing plate is respectively used for being parallel to one side wall of the part to be ground;

the fastener, the one end and the base of fastener are connected, and the other end and the fixed plate butt of fastener for exert the effort of keeping away from the inner wall of cavity to the fixed plate, make the fixed plate take place to deform and press from both sides tight part.

Compared with the prior art, the utility model provides a pair of in grinding frock, the cassette includes layer board and a plurality of fixed plate, a plurality of fixed plates evenly set up along the circumference of layer board, space and part phase-match that a plurality of fixed plates enclose, make the part can put into the cassette, put into the cavity of base with the cassette after, exert the effort of keeping away from the inner wall of cavity to the fixed plate through the fastener, make the fixed plate produce the deformation towards the part, when the fixed plate of different positions all produced the deformation towards the part, the fixed plate can press from both sides tight part, make part and base fixed connection, the columniform one end and the three-jaw chuck fixed connection of base, make fixing that the part can be stable grind the lathe, guarantee the course of grinding, the part can not drop. Based on this, the utility model provides a pair of grind frock can apply the effort of keeping away from the inner wall of cavity to the fixed plate through the fastener, the fixed plate takes place deformation and presss from both sides tight part, make the part, the equal fixed connection of cassette and base, then fix the columniform one end of base to the three-jaw chuck again, make the part fix on grinding the machine tool, and every fixed plate is used for respectively parallel with a lateral wall of part, directly press from both sides the contact area of pressing from both sides on the three-jaw chuck for the part, the fixed plate is great with the lateral wall butt of waiting to grind the part, it is more firm to connect, the part that has avoided having non-circular structure drops, guarantee fixed stability.

Optionally, in the above-mentioned grinding tool, the fastener is a jackscrew, the base is provided with a threaded through hole, one end of the jackscrew is in threaded connection with the threaded through hole, and the other end of the jackscrew abuts against the fixing plate.

Optionally, in the grinding tool, the threaded through hole is a counterbore.

Optionally, in the grinding tool, the number of the jackscrews and the number of the threaded through holes are 2-4.

Optionally, in the above grinding tool, the number of the fixing plates is 2 to 4.

Optionally, in the grinding tool, the supporting plate and the fixing plate are of an integrated structure.

Optionally, in the grinding tool, a groove is formed in an inner wall of the cavity.

Optionally, in the grinding tool, the number of the grooves is 2 to 4.

Optionally, in the above-mentioned grinding tool, the clamping seat further includes:

the boss is arranged on one side, away from the inner wall of the cavity, of the fixing plate, and the height of the boss is smaller than that of the fixing plate.

Optionally, in the grinding tool, the base is made of stainless steel or aluminum alloy;

and/or the material of the clamping seat is stainless steel or aluminum alloy.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of a grinding tool according to an embodiment of the present invention;

fig. 2 is a front view of a grinding tool provided by an embodiment of the present invention.

Reference numerals:

1-a base; 11-a cavity; 12-a groove; 2-a card seat; 21-a supporting plate; 22-a fixing plate; 23-a boss; and 3, fastening the components.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In gas delivery systems in the semiconductor industry, parts are required to be processed by grinding to meet high use requirements. A common grinding method is to fix the part to be ground on a three-jaw chuck of a grinding machine and then grind the part. When the cross-section of one end of the part is non-circular, the three-jaw chuck is not firm in fixing the part with a non-circular structure, and the part is easy to fall off in the grinding process, so that the machining accident is caused.

In order to solve the above problems, please refer to fig. 1 and 2, an embodiment of the present invention provides a grinding tool, which is characterized in that the grinding tool comprises a base 1, a clamping seat 2 and a fastening piece 3, one end of the base 1 is cylindrical and is used for being fixedly connected with a three-jaw chuck, and the other end of the base 1 is provided with a cavity 11; the clamping seat 2 is arranged in the cavity 11, the clamping seat 2 comprises a supporting plate 21 and a plurality of fixing plates 22, the fixing plates 22 are uniformly arranged along the circumferential direction of the supporting plate 21 and are fixedly connected with the supporting plate 21, each fixing plate 22 is respectively used for being parallel to one side wall of a part to be ground, and a space surrounded by the fixing plates 22 is matched with the part; one end of the fastener 3 is connected with the base 1, and the other end of the fastener 3 is abutted against the fixing plate 22 and used for applying an acting force far away from the inner wall of the cavity 11 to the fixing plate 22 so as to deform the fixing plate 22 and clamp the part; it should be noted that the cross section of the end of the part to be ground connected to the holder 2 is non-circular, and exemplarily, the cross section of the end of the part to be ground connected to the holder 2 is a quadrangle, a pentagon, or the like.

In the course of lapping, put into cassette 2 with the square structure that has the part, then put into cavity 11 of base 1 with part and cassette 2, exert the effort of keeping away from the inner wall of cavity 11 to fixed plate 22 through fastener 3, fixed plate 22 takes place the lateral wall butt of the square structure of back with the part after the deformation to press from both sides tight part, later install the one end of base 1 to the three-jaw chuck of lapping machine, and grind the part.

Can know through foretell structure and the concrete implementation process of grinding frock the embodiment of the utility model provides an in the grinding frock, cassette 2 includes layer board 21 and a plurality of fixed plate 22, a plurality of fixed plate 22 evenly set up along the circumference of layer board 21, space and part phase-match that a plurality of fixed plate 22 enclose, make the square structure of part can put into cassette 2, put into base 1's cavity 11 back with cassette 2, exert the effort of keeping away from the inner wall of cavity 11 to fixed plate 22 through fastener 3, make fixed plate 22 produce the deformation towards the part, because every fixed plate 22 is used for respectively with wait to grind a lateral wall of part parallel, when the fixed plate 22 of different positions all produces the deformation towards the part, fixed plate 22 can press from both sides tight part, make part and base 1 fixed connection, base 1's columniform one end, with three-jaw chuck fixed connection, make fixing that the part can be stable grind the machine bed, guarantee the grinding in-process, the part can not drop. Compared with the prior art, the embodiment of the utility model provides a pair of grind frock can apply the effort of keeping away from the inner wall of cavity 11 to fixed plate 22 through fastener 3, fixed plate 22 takes place deformation and clamping part, make the part, cassette 2 and the equal fixed connection of base 1, then fix base 1's columniform one end to the three-jaw chuck on, make the part fix on grinding machine tool, and every fixed plate 22 is used for respectively parallel with a lateral wall of the square structure of part, directly press from both sides the clamp on the three-jaw chuck for the square structure of part, fixed plate 22 is great with the contact area who waits to grind a lateral wall butt of part, it is more firm to connect, the part that has avoided having square structure drops, guarantee the stationary stability.

As an optional mode, in the grinding tool, the fastening element 3 is a jackscrew, the base 1 is provided with a threaded through hole, one end of the jackscrew is in threaded connection with the threaded through hole, and the other end of the jackscrew abuts against the fixing plate 22. The acting force applied to the fixing plate 22 by the jackscrew is adjusted by adjusting the position of the jackscrew relative to the threaded through hole, so that the clamping and the loosening of the clamping seat 2 and the parts are realized.

Specifically, in the grinding tool, the threaded through hole is a counter bore. One end of the jackscrew, which is far away from the clamping seat 2, can be completely arranged in the thread through hole, and the relative position of the jackscrew and the thread through hole is convenient to adjust.

In some embodiments, the number of jackscrews and threaded through holes is 2-4; illustratively, the number of jackscrews and threaded through holes is 2, 3 or 4. With this arrangement, it is possible to generate an urging force toward the component to the fixing plate 22 at different positions, and to improve the stability of fixing the component.

As another optional mode, in the grinding tool, the fastening member 3 is a spring, a spring hole is formed in the base 1, one end of the spring is disposed in the spring hole, and the other end of the spring abuts against the fixing plate 22. The fixing plate 22 can be biased toward the component by the deformation of the spring.

In an alternative, the number of fixation plates 22 is 2-4; illustratively, the number of fixation plates 22 is 2, 3, or 4. So set up, when guaranteeing to fix firm to the part, simple structure, processing is easy.

Specifically, in the above-described grinding tool, the support plate 21 and the fixing plate 22 are integrated. So set up, guarantee the stability of the connection of layer board 21 and fixed plate 22.

As a possible implementation manner, in the grinding tool, a groove 12 is provided on an inner wall of the cavity 11. Due to the arrangement, when the base 1 is machined and manufactured, the machining tool can be conveniently withdrawn; at the end of the grinding, the tool can be conveniently engaged to remove the cartridge 2.

Specifically, in the grinding tool, the number of the grooves 12 is 2 to 4; illustratively, the number of grooves 12 is 2, 3, or 4.

In an optional manner, the clamping seat 2 of the grinding tool further includes a boss 23, the boss 23 is disposed on a side of the fixing plate 22 away from the inner wall of the cavity 11, and a height of the boss 23 is smaller than that of the fixing plate 22. When one end of the part to be ground is of a two-layer square structure with the side length sequentially increased, the square mechanism with the smaller side length at the outermost end of the part can be abutted against the boss 23, and therefore the firmness of fastening the part is enhanced.

In some embodiments, the material of the base 1 is stainless steel or aluminum alloy; and/or the material of the clamping seat 2 is stainless steel or aluminum alloy. Illustratively, the material of the base 1 is stainless steel or aluminum alloy, or the material of the clamping seat 2 is stainless steel or aluminum alloy, or the materials of the base 1 and the clamping seat 2 are both stainless steel or aluminum alloy. The stainless steel and the aluminum alloy have better hardness and corrosion resistance, and the service life of the base 1 and the clamping seat 2 is ensured.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a grind frock which characterized in that includes:

the clamping seat is arranged in the cavity and comprises a supporting plate and a plurality of fixing plates, the fixing plates are uniformly arranged along the circumferential direction of the supporting plate and are fixedly connected with the supporting plate, and each fixing plate is respectively used for being parallel to one side wall of a part to be ground;

the fastener, the one end of fastener with the base is connected, the other end of fastener with the fixed plate butt is used for right the effort of keeping away from the inner wall of cavity is applyed to the fixed plate, makes the fixed plate takes place to deform and presss from both sides tightly wait to grind the part.

2. The grinding tool according to claim 1, wherein the fastener is a jackscrew, the base is provided with a threaded through hole, one end of the jackscrew is in threaded connection with the threaded through hole, and the other end of the jackscrew abuts against the fixing plate.

3. The grinding tool of claim 2, wherein the threaded through hole is a counterbore.

4. The grinding tool according to claim 2, wherein the number of the jackscrew and the number of the threaded through holes are both 2-4.

5. The grinding tool of claim 1, wherein the number of the fixing plates is 2-4.

6. The grinding tool of claim 1, wherein the supporting plate and the fixing plate are of an integrated structure.

7. The grinding tool according to claim 1, wherein a groove is formed in an inner wall of the cavity.

8. The grinding tool of claim 7, wherein the number of grooves is 2-4.

9. The grinding tool of claim 1, wherein the cartridge further comprises:

the boss is arranged on one side, far away from the inner wall of the cavity, of the fixing plate, and the height of the boss is smaller than that of the fixing plate.

10. The grinding tool according to claim 1, wherein the base is made of stainless steel or aluminum alloy;

and/or the material of the clamping seat is stainless steel or aluminum alloy.