CN214722344U

CN214722344U - Machining clamp

Info

Publication number: CN214722344U
Application number: CN202023237074.7U
Authority: CN
Inventors: 周墩明; 张翔; 郑文景
Original assignee: 722th Research Institute of CSIC
Current assignee: 722th Research Institute of CSIC
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-16
Anticipated expiration: 2030-12-29

Abstract

The utility model provides a machining clamp, belongs to machining equipment technical field. One corner of the cube workpiece can prevent the first positioning surface, the second positioning surface and the third positioning surface which are perpendicular to each other and intersected in the first positioning groove of the mounting base plate from supporting and positioning the three surfaces of the cube workpiece. The first end of the connecting stud in the machining clamp is connected with the mounting base plate and is spaced from the first positioning groove, and the pressing plate connected with the second end of the connecting stud can be pressed at one corner of the square workpiece, which is far away from the mounting base plate. The compression nut can compress the pressing plate on the cube workpiece, so that the cube workpiece can be kept stable during processing, the position of the cube workpiece is changed, a blind hole can be processed on the cube workpiece by using a common machine tool, and the processing cost of the blind hole of the cube workpiece is reduced while the processing precision of the blind hole of the cube workpiece is guaranteed.

Description

Machining clamp

Technical Field

The disclosure relates to the technical field of machining equipment, in particular to a machining clamp.

Background

A workpiece is a processing object in machining, and various grooves or hole-like structures are often required to be processed on the workpiece. There is a cube work piece at present, need process the blind hole on this cube work piece at least, and the opening of blind hole is located one of them surface of cube work piece, and the axis of blind hole is not perpendicular to arbitrary surface of cube work piece.

In the related art, the blind hole generally needs a four-axis linkage numerical control machine tool to be processed, so that the position of a cube workpiece during processing the blind hole can be kept stable, and the precision of the processed blind hole is better. And four-axis linkage digit control machine tool is comparatively expensive, can greatly increase the processing cost of square work piece.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a machining clamp, which can ensure the machining precision of a blind hole of a square workpiece and reduce the machining cost of the blind hole of the square workpiece. The technical scheme is as follows:

the disclosed embodiment provides a processing clamp, which comprises an installation bottom plate, a connecting stud, a pressing plate and a compression nut,

the mounting bottom plate is provided with a first positioning groove, the first positioning groove is provided with a first positioning surface, a second positioning surface and a third positioning surface which are intersected, the first positioning surface, the second positioning surface and the third positioning surface are mutually vertical,

the first end of the connecting stud is connected with the mounting bottom plate and is distributed at intervals with the first positioning groove,

the connecting stud is inserted in the pressure plate, the second end of the connecting stud extends out of the pressure plate, the first plate surface of the pressure plate is opposite to the first positioning groove,

the compression nut is in threaded connection with the second end of the connecting stud, the compression nut abuts against the second plate surface of the pressing plate, and the first plate surface and the second plate surface are parallel and opposite to each other.

Optionally, the pressing plate has a pressing groove with an opening on the first plate surface, and the pressing groove is opposite to the first positioning groove.

Optionally, the pressing groove bottom surface of the pressing groove is parallel to the first plate surface.

Optionally, the mounting base plate and the pressing plate are both rectangular, and the first plate surface of the pressing plate is parallel to one plate surface of the mounting base plate.

Optionally, the machining fixture further comprises a first locking nut, the first locking nut is in threaded connection with the connecting stud, and the first locking nut abuts against the first plate surface of the pressing plate.

Optionally, the pressing plate has a jack sleeved on the connecting stud, and the jack is in clearance fit with the connecting stud.

Optionally, the first end of the connection stud is threadedly connected with the mounting base plate.

Optionally, the machining fixture further comprises a second locking nut, the second locking nut is in threaded connection with the connecting stud, and the second locking nut abuts against the mounting base plate.

Optionally, the mounting base plate further has a second positioning groove, the second positioning groove is a rectangular positioning groove, and the opening of the first positioning groove is located in the second positioning groove.

Optionally, the machining fixture further comprises a plurality of square workpiece limiting rods, the square workpiece limiting rods are inserted on the mounting base plate at intervals, and the square workpiece limiting rods are distributed around the first positioning grooves.

The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure include:

when needs processing square work piece, can place the square work piece on the mounting plate of machining anchor clamps, and a corner of square work piece can prevent in the first locating slot of mounting plate, mutually perpendicular of first locating slot, and crossing first locating surface, second locating surface and third locating surface can support and fix a position the three surface of square work piece respectively. The first end of the connecting stud in the processing clamp is connected with the mounting base plate and is spaced from the first positioning groove, so that the effect of connecting the pressing plate can be achieved, the pressing plate connected with the second end of the connecting stud is opposite to the first positioning groove, and one corner of the square workpiece, far away from the mounting base plate, can be pressed. The compression nut can be in threaded connection with the second end, extending out of the pressing plate, of the connecting stud, the pressing plate is pressed on the cube workpiece, the pressing plate presses the cube workpiece on the mounting base plate, the cube workpiece can be kept stable during processing, and the processing precision of the blind hole is guaranteed. And the processing fixture is used, the effect of changing the direction of the square workpiece is achieved, the surface of the square workpiece, which is required to be processed with the blind hole, can be opposite to a common machine tool, the blind hole can be processed on the square workpiece by using the common machine tool, the processing precision of the blind hole of the square workpiece is guaranteed, and meanwhile the processing cost of the blind hole of the square workpiece is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a three-view illustration of a workpiece provided by an embodiment of the present disclosure;

FIG. 2 is a front view of a machining fixture provided by embodiments of the present disclosure;

FIG. 3 is a side view of a machining fixture provided by embodiments of the present disclosure;

FIG. 4 is a top view of a machining fixture provided by embodiments of the present disclosure;

FIG. 5 is a schematic structural diagram of a mounting base provided by an embodiment of the present disclosure;

fig. 6 is a three-view illustration of a mounting baseplate provided by embodiments of the present disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a three-dimensional view of a workpiece provided by an embodiment of the present disclosure, and referring to fig. 1, it can be seen that the blind hole 1001 is not perpendicular to any surface of the square workpiece 100, so that the blind hole 1001 on the square workpiece 100 is difficult to position and machine.

Fig. 2 is a front view of a machining jig provided in an embodiment of the present disclosure, and as can be seen from fig. 2, the embodiment of the present disclosure provides a machining jig including a mounting base plate 1, a connecting stud 2, a pressure plate 3, and a compression nut 4.

The mounting base plate 1 has a first positioning groove 11, the first positioning groove 11 has a first positioning surface 111, a second positioning surface 112 and a third positioning surface 113 (not shown in fig. 1) which are intersected, and the first positioning surface 111, the second positioning surface 112 and the third positioning surface 113 are perpendicular to each other. The first end of the connecting stud 2 is connected with the mounting base plate 1 and is distributed at intervals with the first positioning groove 11. The connecting stud 2 is inserted in the pressing plate 3, the second end of the connecting stud 2 extends out of the pressing plate 3, and the first plate surface 3a of the pressing plate 3 is opposite to the first positioning groove 11. The compression nut 4 is in threaded connection with the second end of the connecting stud 2, the compression nut 4 abuts against the second plate surface 3b of the pressing plate 3, and the first plate surface 3a and the second plate surface 3b are parallel and opposite to each other.

When the square workpiece 100 needs to be machined, the square workpiece 100 can be placed on the mounting base plate 1 of the machining fixture, and one corner of the square workpiece 100 can be prevented from being in the first positioning groove 11 of the mounting base plate 1, and the first positioning surface 111, the second positioning surface 112 and the third positioning surface 113, which are perpendicular to each other and intersect with each other, of the first positioning groove 11 can respectively support and position three surfaces of the square workpiece 100. The first end of the connecting stud 2 in the machining clamp is connected with the mounting base plate 1, and the first end is spaced from the first positioning groove 11, so that the effect of connecting the pressing plate 3 can be achieved, the pressing plate 3 connected with the second end of the connecting stud 2 is opposite to the first positioning groove 11, and one corner of the square workpiece 100, far away from the mounting base plate 1, can be pressed. The gland nut 4 can be in threaded connection with the second end of the connecting stud 2 extending out of the pressing plate 3, the pressing plate 3 is pressed on the cube workpiece 100, the pressing plate 3 presses the cube workpiece 100 on the mounting base plate 1, the cube workpiece 100 can be kept stable during processing, and the processing precision of the blind hole 1001 is guaranteed. And the processing fixture is used, the effect of changing the direction of the square workpiece 100 is achieved, the surface of the square workpiece 100, which is required to be processed with the blind hole 1001, can be opposite to a common machine tool, the blind hole 1001 can be processed on the square workpiece 100 by using the common machine tool, the processing precision of the blind hole 1001 of the square workpiece 100 is ensured, and meanwhile the processing cost of the blind hole 1001 of the square workpiece 100 is reduced.

Alternatively, the first plate surface 3a of the pressing plate 3 may be perpendicular to the connecting stud 2. Facilitating the transfer of forces.

Alternatively, the pressing plate 3 has a pressing groove 31 opened on the first plate surface 3a, and the pressing groove 31 is opposite to the first positioning groove 11.

The pressing groove 31 can limit an angle of the cube workpiece 100 far away from the first positioning groove 11 in the pressing groove 31, so that the cube workpiece 100 can be quickly positioned, the machining efficiency of the cube workpiece 100 is improved, and the pressing groove bottom surface 311 of the pressing groove 31 is directly offset with an angle of the cube workpiece 100.

Alternatively, the pressing groove 31 may be a circular groove. The preparation is convenient, and one corner of the cuboid workpiece 100 far away from the installation bottom plate 1 can be effectively limited.

In other implementations provided by the present disclosure, the pressing groove 31 may also be a rectangular groove, a prismatic groove, or an irregularly shaped groove, which is not limited by the present disclosure.

Illustratively, the pressing groove bottom surface 311 of the pressing groove 31 is parallel to the first plate surface 3 a. The pressing groove 31 can be ensured to stably press the square workpiece 100 on the mounting baseplate 1.

Illustratively, the platen 3 may have a rectangular parallelepiped shape. The preparation and the acquisition of the pressing plate 3 are convenient.

In other implementations provided by the present disclosure, the pressure plate 3 and the mounting base plate 1 may also be cylindrical or prismatic, which is not limited by the present disclosure.

Optionally, the machining fixture further includes a first lock nut 5, the first lock nut 5 is in threaded connection with the connecting stud 2, and the first lock nut 5 abuts against the first plate surface 3a of the pressing plate 3.

First lock nut 5 can provide the support to clamp plate 3 to cooperation gland nut 4 carries out effective location to clamp plate 3, reduces clamp plate 3 and takes place the possibility of rocking, with the square work piece 100 of assurance clamp plate 3 can stabilize and compress tightly.

Illustratively, the pressure plate 3 has a socket 32 which is sleeved on the connecting stud 2, and the socket 32 is in clearance fit with the connecting stud 2.

On the premise of having the first locking nut 5, the pressing plate 3 is in clearance fit with the connecting stud 2, and the insertion hole 32 can facilitate the insertion of the connecting stud 2 into the pressing plate 3 and also facilitate the adjustment of the position of the pressing plate 3 relative to the connecting stud 2, so as to achieve the purpose of adjusting the height of the pressing plate 3.

In other implementations provided by the present disclosure, the pressure plate 3 and the connecting stud 2 may be in threaded fit or transition fit, which is not limited by the present disclosure.

Optionally, the first end of the connection stud 2 is screwed to the mounting baseplate 1.

The first end of the connecting stud 2 is in threaded connection with the mounting base plate 1, so that the connecting stud 2 and the mounting base plate 1 can be conveniently disassembled and assembled.

Illustratively, the mounting baseplate 1 may have a threaded hole 13 for mating with the connecting stud 2. The connection between the connecting stud 2 and the mounting baseplate 1 is facilitated.

Fig. 3 is a side view of the processing fixture provided in the embodiment of the present disclosure, and as can be seen from fig. 3, the processing fixture further includes a second lock nut 6, the second lock nut 6 is in threaded connection with the connecting stud 2, and the second lock nut 6 abuts against the second plate surface 3b of the pressing plate 3.

The second locking nut 6 can lock the connecting stud 2 on the mounting base plate 1, so that the connecting stud 2 is prevented from shaking to influence the pressing plate 3, and the square workpiece 100 can be stably pressed by the pressing plate 3.

Fig. 4 is a top view of the machining jig according to the embodiment of the disclosure, and referring to fig. 4, it can be seen that the mounting base plate 1 further has a second positioning groove 12, the second positioning groove 12 is a rectangular positioning groove, and an opening of the first positioning groove 11 is located in the second positioning groove 12.

When the square workpiece 100 needs to be processed with a hole whose axis is perpendicular to one surface of the square workpiece 100, the second positioning groove 12 may be used for placing and supporting the square workpiece 100, and then the pressing plate 3 is matched to compress the square workpiece 100, so as to ensure the processing quality of the finally obtained hole. The opening of the first positioning groove 11 is located in the second positioning groove 12, so that the size required by the installation bottom plate 1 can be reduced while the processing of the blind hole 1001 is not influenced, and the structure is more compact.

Exemplarily, the machining jig further comprises a plurality of square workpiece limiting rods 7, the plurality of square workpiece limiting rods 7 are inserted on the mounting base plate 1 at intervals, and the plurality of square workpiece limiting rods 7 are distributed around the first positioning groove 11.

The square workpiece limiting rod 7 can abut against the edge or the surface of the square workpiece 100 to position and support the square workpiece 100, so that stable processing of the square workpiece 100 is further ensured.

It should be noted that, when the mounting base plate 1 has the second positioning groove 12, the plurality of square workpiece limiting rods 7 are distributed around the second positioning groove 12.

Fig. 5 is a schematic structural diagram of a mounting base plate according to an embodiment of the disclosure, and it can be seen in fig. 5 that the first positioning groove 11 has a first positioning surface 111, a second positioning surface 112 and a third positioning surface 113 which intersect with each other. The first positioning groove 11 is located in the second positioning groove 12. In fig. 5, the structure of the mounting baseplate 1 other than the first positioning groove 11 and the second positioning groove 12 is omitted.

Fig. 6 is a three-dimensional view of the mounting base plate according to the embodiment of the disclosure, and as can be seen from fig. 6, the mounting base plate 1 has threaded holes 13 engaged with the connecting studs 2, the threaded holes 13 are spaced from the second positioning grooves 12, the mounting base plate 1 also has positioning holes 14 corresponding to the plurality of square workpiece limiting rods 7, and the positioning holes 14 are spaced from the threaded holes 13 and the second positioning grooves 12.

In addition, if the mounting base plate 1 is a rectangular parallelepiped, the opening of the first positioning groove 11 is located on one surface of the mounting base plate 1, and angles between the first positioning surface 111, the second positioning surface 112, and the third positioning surface 113 of the first positioning groove 11 and the surface can be adjusted according to actual conditions.

In one implementation manner provided by the present disclosure, the mounting base plate 1 is a rectangular parallelepiped, and if the included angles between the blind hole 1001 and the adjacent three surfaces of the square workpiece 100 are α, β, and γ, the included angles between the first positioning surface 111, the second positioning surface 112, the third positioning surface 113, and the adjacent three surfaces of the mounting base plate 1 may be α, β, and γ, respectively. It is ensured that the axis of the blind hole 1001 is perpendicular to the surface, and the machine tool can feed the blind hole 1001 directly from the surface.

Although the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure.

Claims

1. A processing clamp is characterized by comprising an installation bottom plate (1), a connecting stud (2), a pressing plate (3) and a compression nut (4),

the mounting base plate (1) is provided with a first positioning groove (11), the first positioning groove (11) is provided with a first positioning surface (111), a second positioning surface (112) and a third positioning surface (113) which are intersected, the first positioning surface (111), the second positioning surface (112) and the third positioning surface (113) are mutually vertical,

the first end of the connecting stud (2) is connected with the mounting bottom plate (1) and is distributed at intervals with the first positioning groove (11),

the connecting stud (2) is inserted into the pressing plate (3), the second end of the connecting stud (2) extends out of the pressing plate (3), the first plate surface (3a) of the pressing plate (3) is opposite to the first positioning groove (11),

the compression nut (4) is in threaded connection with the second end of the connecting stud (2), the compression nut (4) is abutted to the second plate surface (3b) of the pressing plate (3), and the first plate surface (3a) and the second plate surface (3b) are parallel and opposite to each other.

2. The machining jig according to claim 1, characterized in that the pressing plate (3) has a pressing groove (31) opened on the first plate surface (3a), the pressing groove (31) being opposite to the first positioning groove (11).

3. The machining fixture according to claim 2, characterized in that a pressing groove bottom surface (311) of the pressing groove (31) is parallel to the first plate surface (3 a).

4. The machining jig according to any one of claims 1 to 3, characterized in that the mounting base plate (1) and the pressing plate (3) are each rectangular parallelepiped, and the first plate surface (3a) of the pressing plate (3) is parallel to one plate surface of the mounting base plate (1).

5. The machining clamp according to any one of claims 1 to 3, characterized in that the machining clamp further comprises a first lock nut (5), the first lock nut (5) is in threaded connection with the connecting stud (2), and the first lock nut (5) abuts against the first plate surface (3a) of the pressing plate (3).

6. Machining fixture according to claim 5, characterized in that the pressure plate (3) has a socket (32) that fits over the connecting stud (2), the socket (32) being a clearance fit with the connecting stud (2).

7. The machining fixture according to any one of claims 1 to 3, characterized in that the first end of the connecting stud (2) is threadedly connected to the mounting base plate (1).

8. The machining fixture according to claim 6, characterized in that the machining fixture further comprises a second lock nut (6), the second lock nut (6) is in threaded connection with the connecting stud (2), and the second lock nut (6) abuts against the mounting base plate (1).

9. A machining fixture according to any one of claims 1-3, characterized in that the mounting base (1) further has a second positioning slot (12), the second positioning slot (12) being a rectangular positioning slot, the opening of the first positioning slot (11) being located in the second positioning slot (12).

10. The machining jig according to any one of claims 1 to 3, characterized in that the machining jig further comprises a plurality of square workpiece limiting rods (7), the plurality of square workpiece limiting rods (7) are inserted on the mounting base plate (1) at intervals, and the plurality of square workpiece limiting rods (7) are distributed around the first positioning groove (11).