CN215903321U

CN215903321U - End surface polishing clamp for pressure plate

Info

Publication number: CN215903321U
Application number: CN202121875917.8U
Authority: CN
Inventors: 杨淼清
Original assignee: Wuxi Tongjue Equipment Co ltd
Current assignee: Wuxi Tongjue Equipment Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-25
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses an end face polishing clamp of a compression plate, and provides the following technical scheme aiming at the problem of processing precision reduction caused by infirm fixing of the compression plate, wherein the L-shaped positioning block is arranged on a workbench and comprises a first positioning part and a second positioning part, the side face of the first positioning part is mutually abutted with the side face of the compression plate, and the side face of the second positioning part is mutually abutted with a V-shaped tip of the compression plate; the first pressing assemblies are detachably connected to the workbench and used for fixing the L-shaped positioning blocks on the workbench; the second pressing component is detachably connected to the workbench, penetrates through the waist hole of the pressurizing plate and is used for fixing the pressurizing plate on the workbench; the pressurizing plate is placed on the workbench in an upward supply direction. The first hold-down assembly and the L-shaped locating block cooperate to limit two-dimensional degrees of freedom of the compression plate in a horizontal plane. The second pressing component limits the degree of freedom of the pressurizing plate in the vertical direction, the pressurizing plate is completely fixed, and the machining precision of the pressurizing plate is improved.

Description

End surface polishing clamp for pressure plate

Technical Field

The utility model relates to the field of machining clamps, in particular to an end face polishing clamp of a pressurizing plate.

Background

The compression plate is a part of the pile hammer welded to the pile driver for reinforcing the strength of the pile hammer. Referring to fig. 1, the pressing plate is a tile shape as a whole, two large side surfaces have a slight radian bending towards one side, the middle part of the large side surface is provided with a waist hole penetrating through the large side surface, one end of the large side surface is a V-shaped tip protruding outwards, and the protruding direction of the tip is consistent with the length direction of the waist hole.

When the end face of the end of the pressurizing plate far away from the V-shaped tip is polished, a horizontal grinding machine is generally used, and a plurality of T-shaped grooves are arranged on a workbench of the horizontal grinding machine. Because the large side surface of the pressure plate is an arc surface, the pressure plate is easy to roll along the arc surface by using a fixture positioned by a common positioning column in the high-speed grinding process, the fixation is not firm, the form and position errors of a workpiece are increased, and the grinding precision of the end surface of the pressure plate is influenced. Secondly, the vibration generated due to the weak fastening during the machining directly affects the surface roughness of the pressing plate, and thus, there is room for improvement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the end face grinding clamp for the pressurizing plate, which has the advantages of firmly clamping the pressurizing plate and improving the processing precision and surface processing quality.

In order to achieve the purpose, the utility model provides the following technical scheme:

an end surface polishing clamp of a pressure plate comprises

The L-shaped positioning block is arranged on the upper surface of the workbench and comprises a first positioning part and a second positioning part fixed with the first positioning part, the side surface of the first positioning part is abutted against the long side surface of the pressurizing plate, and the side surface of the second positioning part is abutted against the V-shaped tip of the pressurizing plate;

the first pressing assemblies are detachably connected to the workbench and used for fixing the L-shaped positioning blocks on the workbench;

the second pressing component is detachably connected to the workbench, penetrates through the waist hole of the pressurizing plate and is used for pressing the pressurizing plate on the workbench;

the pressurizing plate is placed on the workbench in the upward supply direction.

By adopting the technical scheme, the L-shaped positioning block is placed on the workbench, the first pressing component and the second pressing component are detachably connected with the workbench, so that the workbench can be detached from the workbench when other workpieces are machined, and the L-shaped positioning block gives way for machining of other workpieces. The L-shaped positioning blocks are fixed on the workbench through the first pressing assemblies, so that the L-shaped positioning blocks cannot move due to grinding force in the machining process, and the machining precision of the pressurizing plate is guaranteed. The pressurizing plate is placed on the workbench in the upward supply direction, two side edges of the pressurizing plate are in contact with the surface of the workbench, two lines determine a plane, and compared with the contact between the pressurizing plate and the workbench, the pressurizing plate is placed more stably in the downward supply direction and is in contact with the workbench in the straight line, and therefore the pressurizing plate is more stably fixed. The pressurizing plate is pushed to the inside of the L shape of the L-shaped positioning block, the V-shaped tip of the pressurizing plate abuts against the inner side face of the second positioning part, the long side face of the pressurizing plate abuts against the side face of the first positioning part, and the limitation of the degree of freedom of the pressurizing plate in two dimensions on the horizontal plane is achieved. When the pressure plate is placed, the second pressing component penetrates through the waist hole of the pressure plate to fix the pressure plate on the workbench, so that the limitation of the degree of freedom of the pressure plate in the vertical direction is realized. The three degrees of freedom of the pressurizing plate are all limited, so that the pressurizing plate is completely fixed, the vibration in the machining process is reduced, and the machining precision of the pressurizing plate is improved.

Further, the first pressing assembly comprises a first pressing plate, a first bolt, a first nut and a first baffle plate, wherein the middle part of the first pressing plate is provided with a waist hole, the first nut is connected to one end, far away from the workbench, of the first bolt in a threaded mode, and the first baffle plate slides in the T-shaped groove of the workbench; first pressing plates are arranged on the sides, far away from the workbench, of the first positioning part and the second positioning part; the first bolt penetrates through a waist hole of the first pressing plate, one end of the first bolt extends into the T-shaped groove of the workbench, and the other end of the first bolt extends out of one side, far away from the workbench, of the first pressing plate; one end of the first nut is abutted against the first pressing plate; first baffle and the one end fixed connection that is close to the workstation of first bolt, the upper surface of first baffle and the groove top surface in the T-slot of workstation support each other and lean on.

By adopting the technical scheme, the first bolt is slid to the position near the L-shaped positioning block from the inside of the T-shaped groove of the workbench, the first pressing plate is placed on one side, away from the workbench, of the first positioning part or the second positioning part, one end of the first bolt penetrates through the waist hole of the first pressing plate, finally, the first nut is screwed into the first bolt from one end, extending out of the first pressing plate, of the first bolt, the first nut is screwed with the first bolt, the first nut is enabled to move towards the direction close to the first pressing plate until the first baffle abuts against the inside of the T-shaped groove of the workbench, the L-shaped positioning block and the first pressing plate are clamped together by the first baffle and the first nut, the pressure among the workbench, the L-shaped positioning block and the first pressing plate is increased, the friction force is increased, and the L-shaped positioning block is completely fixed between the first pressing plate and the workbench.

Furthermore, the second pressing component comprises a second pressing plate, a second bolt, a second nut and a second baffle plate, wherein the middle part of the second pressing plate is provided with a waist hole, the second nut is connected to one end, far away from the workbench, of the second bolt in a threaded mode, and the second baffle plate slides in the T-shaped groove of the workbench; the second pressing plate is arranged on one side of the pressurizing plate, which is far away from the workbench; the second bolt penetrates through a waist hole of the second pressure plate, one end of the second bolt extends into the T-shaped groove of the workbench, and the other end of the second bolt extends out of one side, far away from the workbench, of the second pressure plate; one end of the second nut is abutted against the second pressure plate; the second baffle is fixedly connected with one end, close to the workbench, of the second bolt, and the upper surface of the second baffle is abutted against the top surface of the T-shaped groove of the workbench.

By adopting the technical scheme, the second bolt slides to the position near the pressurizing plate from the T-shaped groove of the workbench, the second pressing plate is placed on one side of the pressurizing plate far away from the workbench, one end of the second bolt penetrates through the waist hole of the pressurizing plate, finally, the second nut is screwed into the second bolt at the end, extending out of the second pressing plate, of the second bolt, the second nut is screwed with the second bolt, the second nut moves towards the direction close to the second pressing plate until the second baffle abuts against the T-shaped groove of the workbench, the pressurizing plate and the second pressing plate are clamped together by the second baffle and the second nut together, the pressure between the workbench, the friction force and the pressurizing plate are increased, and the pressurizing plate is completely fixed between the second pressing plate and the workbench.

Furthermore, a base plate is arranged at one end, far away from the L-shaped positioning block, of the first pressing plate, and the base plate is arranged between the workbench and the first pressing plate, so that the first pressing plate is parallel to the workbench.

By adopting the technical scheme, the base plate is arranged between the first pressing plate and the workbench, one end of the first pressing plate, which is far away from the L-shaped positioning block, is lifted, so that the larger plane of the first pressing plate is perpendicular to the first stud, the pressing plate is stressed to have a moving tendency in the machining process, so that the L-shaped positioning block and the first pressing plate have a moving tendency, the first stud is perpendicular to the first pressing plate, the clamping force between the first pressing plate and the workbench has no component force towards the plane direction of the first pressing plate, the first pressing plate has no moving tendency relative to the workbench, and the first pressing plate is more firmly fixed by the first baffle and the first nut.

Further, the length direction of second location portion is on a parallel with the length direction of the T-shaped groove of workstation, the fixed blend stop that is equipped with in bottom surface of second location portion, the side that keeps away from the increased pressure board of blend stop and second location portion both is located the coplanar, the one side of keeping away from the increased pressure board of blend stop supports the medial surface in the T-shaped groove of workstation, the terminal surface of workstation is stretched out to the one end of keeping away from second location portion of increased pressure board.

Adopt above-mentioned technical scheme, L shape locating piece is placed when the workstation, and the medial surface in the T-slot of the one side of keeping away from the increased pressure board of blend stop supports each other and leans on, realizes the location of L shape locating piece in the terminal surface direction of treating of perpendicular to increased pressure board, makes the terminal surface of processing of emery wheel and increased pressure board treat that the terminal surface is parallel to each other, guarantees the surface flatness of increased pressure board.

Furthermore, a plurality of height-adjusting gaskets are arranged between the base plate and the workbench.

By adopting the technical scheme, the height of the first pressing plate far away from one end of the L-shaped positioning block is finely adjusted by the heightening gasket, so that the first pressing plate is suitable for the L-shaped positioning blocks with different heights, the first pressing plate is ensured to be parallel to the workbench all the time, and the applicability of the clamp is improved.

Furthermore, a first gasket is arranged between the first nut and the first pressing plate, a second gasket is arranged between the second nut and the second pressing plate, and the first gasket and the second gasket are elastic.

By adopting the technical scheme, when the first nut is tightly pressed on the first pressing plate, the first gasket is pressed tightly, and because the first gasket has elasticity, the first gasket stores elastic potential energy and tends to separate the first nut from the first pressing plate, threads between the first nut and the first stud are tightly pressed against each other, friction force between the threads of the first nut and the first stud is increased, and the first nut and the first stud are more firmly fixed. The second washer is between the second nut and the second pressure plate as the first washer.

Further, the first positioning portion and the second positioning portion are perpendicular to each other.

By adopting the technical scheme, the situation that when the pressurizing plate is installed on the L-shaped positioning block due to the fact that the first positioning part and the second positioning part are not perpendicular to each other is avoided, the tip end of the pressurizing plate is easy to slip on the second positioning part, the using convenience of the clamp is improved, and the positioning accuracy of the pressurizing plate on the clamp is improved.

Furthermore, the end of the second positioning part far away from the first positioning part is detachably connected with an extension block, and one side surfaces of the extension block and the second positioning part close to the pressurizing plate are located on the same plane.

By adopting the technical scheme, a plurality of pressure plates are arranged on the workbench side by side, after one pressure plate is arranged on the L-shaped positioning block, the second pressure plate and the first pressure plate are also upwards supplied and arranged beside the first pressure plate, the side surface of the second pressure plate abuts against the first pressure plate, and the tip end of the second pressure plate abuts against the extension plate. The fixing of a plurality of pressure plates is realized, and a plurality of pressure plates are processed simultaneously, so that the time is shortened, and the processing efficiency is improved. One side face, close to the pressure plate, of the extension block and the second positioning portion is located on the same plane, the end faces, close to the cutter, of the pressure plates are located on the same plane, the flatness of end face grinding of the pressure plates is guaranteed, and the positioning accuracy of the clamp is improved.

Furthermore, the fixed inserted block that is equipped with in one end that is close to second location portion of extension piece, the one end that is close to the extension piece of second location portion is equipped with the socket that supplies the inserted block to stretch into, inserted block and second location portion once only run through there is the square hole, it has rectangular bodily form bolt to run through in the square hole, be minimum clearance fit between bolt and inserted block and the second location portion.

By adopting the technical scheme, the plug block is inserted into the socket of the second positioning block, and the bolt sequentially penetrates through the through holes of the second positioning part and the plug block, so that the plug block and the second positioning block are relatively fixed in position, and the extension block and the second positioning block are relatively fixed in position. The bolt and the square hole of inserted block and second location portion between minimum clearance, guarantee promptly that the bolt inserts the square hole convenience, also guarantee the location between inserted block and the second location portion accurate.

In conclusion, the utility model has the following beneficial effects:

1. the waist holes of the first pressure plate and the second pressure plate can be used for adjusting the positions of the first stud and the second stud on the workbench respectively, so that the first stud and the second stud can be mounted and dismounted on the first pressure plate and the second pressure plate more conveniently;

2. the first pressing plate and the second pressing plate are not directly pressed on the surface of the pressing plate, so that indentation of the first pressing plate and the second pressing plate on the surface of the pressing plate caused by stress of the pressing plate in the machining process is avoided, the pressing plate abuts against the side face of the L-shaped positioning block, and damage to the surface of the pressing plate is reduced;

3. the first pressing component presses the L-shaped positioning block, the side face and the tip of the pressurizing plate abut against the inside of the L shape of the L-shaped positioning block, the limitation of the degree of freedom of the pressurizing plate in two dimensions on the horizontal plane is achieved, the second pressing component presses the top face of the pressurizing plate, the limitation of the degree of freedom of the pressurizing plate in the vertical direction is achieved, and the complete fixation of the pressurizing plate is achieved.

Drawings

FIG. 1 is a schematic view of a compression plate;

FIG. 2 is a schematic structural diagram of the present embodiment;

FIG. 3 is an exploded view of the extension block of the present embodiment;

FIG. 4 is an exploded partial view of the extension block of the present embodiment;

FIG. 5 is a cross-sectional view of the first hold-down assembly of the present embodiment;

fig. 6 is a sectional view of the second compressing assembly of the present embodiment.

In the figure: 1. an L-shaped positioning block; 11. a first positioning portion; 12. a second positioning portion; 2. a first hold-down assembly; 21. a first platen; 22. a first bolt; 23. a first nut; 24. a first baffle plate; 25. a first gasket; 3. a second hold-down assembly; 31. a second platen; 32. a second bolt; 33. a second nut; 34. a second baffle; 35. a second gasket; 4. a base plate; 5. blocking strips; 6. heightening the gasket; 7. a lengthening block; 8. inserting a block; 9. a bolt; 10. a pressure plate.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

An end face grinding clamp of a pressure plate 10, which is shown in figures 2 and 3, comprises an L-shaped positioning block 1, three first pressing assemblies 2 and a second pressing assembly 3. The pressing plate 10 is arranged on the workbench in a manner that the middle part of the pressing plate faces upwards, and one end of the pressing plate 10, which is far away from the second positioning part 12, extends out of the end surface of the workbench. The L-shaped positioning block 1 is placed on the workbench, the L-shaped positioning block 1 comprises a cuboid-shaped first positioning portion 11 and a cuboid-shaped second positioning portion 12, one end of the first positioning portion 11 is fixed with one end of the second positioning portion 12, and the first positioning portion 11 and the second positioning portion 12 are perpendicular to each other. When the pressing plate 10 is placed in the L-shaped positioning block 1, the side surface of the first positioning portion 11 and the long side surface of the pressing plate 10 abut against each other, and the side surface of the second positioning portion 12 and the V-shaped tip of the pressing plate 10 abut against each other. The length direction of the second positioning portion 12 is parallel to the length direction of the T-shaped groove of the table.

Referring to fig. 4, a barrier strip 5 is fixedly arranged on the bottom surface of the second positioning portion 12. The side surfaces of the barrier strip 5 and the second positioning part 12, which are far away from the pressurizing plate 10, are positioned on the same plane, and one side of the barrier strip 5, which is far away from the pressurizing plate 10, is abutted against the inner side surface of the T-shaped groove of the workbench.

Referring to fig. 2 and 3, two first pressing members 2 are disposed at the first positioning portion 11, and one first pressing member 2 is disposed at the second positioning portion 12. The second pressing member 3 is disposed in the waist hole of the pressing plate 10.

Referring to fig. 2 and 5, the first pressing assembly 2 includes a first pressing plate 21, a first bolt 22, a first nut 23 and a first blocking plate 24, and one end of the first pressing plate 21 is disposed on the top surface of the L-shaped positioning block 1. The middle part of the first presser plate 21 is provided with a waist hole. First bolt 22 passes the waist hole of first clamp plate 21, and the one end of first bolt 22 stretches into the T-slot of workstation, and the other end extends the one side of keeping away from the workstation of first clamp plate 21. The first bolt 22 is perpendicular to the first pressing plate 21, and the first pressing plate 21 is parallel to the workbench. The first nut 23 is screwed to one end of the first bolt 22 extending from the first pressure plate 21, and one end of the first nut 23 abuts against one end of the first pressure plate 21 away from the workbench. A first spacer 25 is clamped between the first nut 23 and the first pressure plate 21, and the first spacer 25 has elasticity. The first baffle plate 24 is fixedly connected with one end, close to the workbench, of the first bolt 22, the first baffle plate 24 slides in the T-shaped groove of the workbench, and the large plane of the first baffle plate 24 is parallel to the top surface of the T-shaped groove of the workbench. A base plate 4 is arranged between one end of the first pressing plate 21, which is far away from the L-shaped positioning block 1, and the workbench, one end of the first pressing plate 21 is supported by the L-shaped positioning block 1, and the other end of the first pressing plate 21 is supported by the base plate 4. A height-adjusting gasket 6 is arranged between the base plate 4 and the workbench.

Referring to fig. 2 and 5, when the first pressing assembly 2 is used, the first baffle 24 is slid from one end of the T-shaped groove of the workbench to the vicinity of the L-shaped positioning block 1, so that the first bolt 22 moves to the vicinity of the L-shaped positioning block 1, the waist hole of the first pressing plate 21 passes through one end of the first bolt 22 away from the workbench, the first pressing plate 21 is placed on one side of the L-shaped positioning block 1 away from the workbench, the first nut 23 is screwed into the first bolt 22, one end of the first nut 23 is pressed on one side of the first pressing plate 21 away from the workbench, and the first nut 23 pulls the first baffle 24 towards the direction close to the first pressing plate 21 until the first baffle 24 and the first nut 23 together press the workbench, the first pressing plate 21 and the L-shaped positioning block 1.

Referring to fig. 2 and 6, the second compressing assembly 3 includes a second pressing plate 31, a second bolt 32, a second nut 33, and a second shutter 34. The pressurizing plate 10 is placed on the table in an upward feeding direction, and two side surfaces of the pressurizing plate 10 in the axial direction of the arc are in contact with the upper surface of the table. The second presser plate 31 is disposed along the axial direction of the circular arc of the pressing plate 10, and the second presser plate 31 is parallel to the table. The middle of the second presser plate 31 is provided with a waist hole. The second bolt 32 passes through the waist hole of the second pressing plate 31, one end of the second bolt 32 extends into the T-shaped groove of the workbench, and the other end extends out of one side of the second pressing plate 31, which is far away from the workbench. The second bolts 32 are perpendicular to the second presser plate 31. The second nut 33 is screwed to one end of the second bolt 32 extending from the second pressure plate 31, and one end of the second nut 33 abuts against one end of the second pressure plate 31 away from the workbench. A second washer 35 is clamped between the second nut 33 and the second pressure plate 31, and the second washer 35 has elasticity. The second baffle 34 and the one end fixed connection that is close to the workstation of second bolt 32, second baffle 34 slide in the T-slot of workstation, and the great plane of second baffle 34 is parallel to each other and supports each other with the groove top surface in T-slot of workstation.

Referring to fig. 3 and 4, one end of the second positioning portion 12, which is far from the first positioning portion 11, is provided with a rectangular parallelepiped extension block 7, and one side surfaces of both the extension block 7 and the second positioning portion 12, which are close to the pressing plate 10, are located on the same plane. The fixed inserted block 8 that is equipped with rectangular bodily form of the one end that is close to second location portion 12 of extension block 7, the one end that is close to extension block 7 of second location portion 12 is equipped with the socket that supplies inserted block 8 to stretch into, and inserted block 8 and second location portion 12 once only run through there is the square hole, and the square hole sets up along direction of gravity, and it has rectangular bodily form bolt 9 to wear in the square hole, is minimum clearance fit between bolt 9 and inserted block 8 and second location portion 12.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides an end face anchor clamps of polishing of increased pressure board which characterized in that: comprises that

The L-shaped positioning block (1) is arranged on the upper surface of the workbench and comprises a first positioning part (11) and a second positioning part (12) fixed with the first positioning part (11), the side surface of the first positioning part (11) is abutted against the long side surface of the pressurizing plate (10), and the side surface of the second positioning part (12) is abutted against the V-shaped tip of the pressurizing plate (10);

the first pressing components (2) are detachably connected to the workbench and used for fixing the L-shaped positioning blocks (1) on the workbench;

the second pressing component (3) is detachably connected to the workbench, penetrates through the waist hole of the pressurizing plate (10) and is used for pressing the pressurizing plate (10) on the workbench;

the pressurizing plate (10) is placed on the workbench in an upward supply direction.

2. The end surface grinding jig for a pressure plate as set forth in claim 1, wherein: the first pressing assembly (2) comprises a first pressing plate (21) with a waist hole in the middle, a first bolt (22), a first nut (23) in threaded connection with one end, far away from the workbench, of the first bolt (22), and a first baffle (24) sliding in a T-shaped groove of the workbench; a first pressing plate (21) is arranged on one side, away from the workbench, of each of the first positioning part (11) and the second positioning part (12); the first bolt (22) penetrates through a waist hole of the first pressing plate (21), one end of the first bolt (22) extends into a T-shaped groove of the workbench, and the other end of the first bolt (22) extends out of one side, far away from the workbench, of the first pressing plate (21); one end of the first nut (23) is abutted against the first pressure plate (21); the first baffle (24) is fixedly connected with one end, close to the workbench, of the first bolt (22), and the upper surface of the first baffle (24) is abutted against the top surface of the T-shaped groove of the workbench.

3. The end surface grinding jig for a pressure plate as set forth in claim 2, wherein: the second pressing component (3) comprises a second pressing plate (31) with a waist hole in the middle, a second bolt (32), a second nut (33) in threaded connection with one end, far away from the workbench, of the second bolt (32), and a second baffle (34) sliding in a T-shaped groove of the workbench; the second pressing plate (31) is arranged on one side, far away from the workbench, of the pressurizing plate (10); the second bolt (32) penetrates through a waist hole of the second pressing plate (31), one end of the second bolt (32) extends into the T-shaped groove of the workbench, and the other end of the second bolt (32) extends out of one side, far away from the workbench, of the second pressing plate (31); one end of the second nut (33) is abutted against the second pressure plate (31); the second baffle (34) is fixedly connected with one end, close to the workbench, of the second bolt (32), and the upper surface of the second baffle (34) is abutted against the top surface of the T-shaped groove of the workbench.

4. The end surface grinding jig for a pressure plate as set forth in claim 3, wherein: one end, far away from L shape locating piece (1), of first clamp plate (21) is equipped with backing plate (4), backing plate (4) set up between workstation and first clamp plate (21), so that first clamp plate (21) are on a parallel with the workstation.

5. The end surface grinding jig for a pressure plate as set forth in claim 4, wherein: the length direction of second location portion (12) is on a parallel with the length direction of the T-shaped groove of workstation, the fixed blend stop (5) that is equipped with in bottom surface of second location portion (12), blend stop (5) and second location portion (12) both keep away from the side of increased pressure board (10) and lie in the coplanar, the medial surface that leans on at the T-shaped groove of workstation is supported to one side of keeping away from increased pressure board (10) of blend stop (5), the terminal surface that the workstation was stretched out to the one end of keeping away from second location portion (12) of increased pressure board (10).

6. The end surface grinding jig for a pressure plate as set forth in claim 4, wherein: a plurality of height-adjusting gaskets (6) are arranged between the base plate (4) and the workbench.

7. The end surface grinding jig for a pressure plate as set forth in claim 4, wherein: a first gasket (25) is arranged between the first nut (23) and the first pressing plate (21), a second gasket (35) is arranged between the second nut (33) and the second pressing plate (31), and the first gasket (25) and the second gasket (35) are elastic.

8. The end surface grinding jig for a pressure plate as set forth in claim 1, wherein: the first positioning part (11) and the second positioning part (12) are perpendicular to each other.

9. The end surface grinding jig for a pressure plate as set forth in claim 1, wherein: one end, far away from the first positioning part (11), of the second positioning part (12) is detachably connected with an extension block (7), and the side faces, close to the pressurizing plate (10), of the extension block (7) and the second positioning part (12) are located on the same plane.

10. The end surface grinding jig for a pressure plate as set forth in claim 9, wherein: the one end that is close to second location portion (12) of extension piece (7) is fixed and is equipped with inserted block (8), the one end that is close to extension piece (7) of second location portion (12) is equipped with the socket that supplies inserted block (8) to stretch into, inserted block (8) and second location portion (12) once only run through there is the square hole, rectangular bodily form bolt (9) have worn in the square hole, be minimum clearance fit between bolt (9) and inserted block (8) and second location portion (12).