Punching machine clamp

Abstract

The utility model belongs to the technical field of machining equipment, and particularly relates to a perforating machine clamp which comprises a perforating table, a clamp body and a clamping device. The arc-shaped clamping plates are uniformly distributed in the circumferential direction of the punching table at intervals; the driving cylinder is arranged on the punching table; the movable connecting rods are arranged between the adjacent arc-shaped clamping plates; wherein the arc-shaped clamping plates form a clamping ring through the movable connecting rods, the driving cylinder can drive the arc-shaped clamping plates to move, and compared with the prior art, the clamping stability of the punching machine clamp can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing equipment, in particular to a punching machine clamp. Background Art

[0002] A punching machine is a mechanical device used to create holes in materials. It can be used for various materials such as metal, plastic, paper, leather, etc. The clamp is an essential structure on the punching machine. It is used to perform punching operations on one side of the clamped workpiece to ensure that the workpiece maintains a stable position during processing, thereby ensuring the punching effect. For example, a CNC circular punching machine disclosed in the patent with application number CN202022912476.6 includes a box body, a reduction motor is fixedly installed inside the box body, a three-jaw chuck is fixedly installed on the upper surface of the base through a turntable bearing, a transmission shaft of the reduction motor is fixedly installed in the bearing, and one end of the transmission shaft of the reduction motor is fixedly installed on the center of the lower surface of the three-jaw chuck, a square iron is welded on the first hydraulic cylinder, a second hydraulic cylinder is fixedly installed on one side of the square iron, and a headstock is welded on one end of the second hydraulic cylinder, an electric hydraulic push rod is fixedly installed inside one side of the headstock, a tapping machine body is fixedly installed on the lower surface of the iron plate, and the punching machine body is fixedly installed inside the other side of the headstock;

[0003] The clamps used in existing punching machines are generally three-jaw chucks, which clamp the workpiece with three jaws. During use, it was found that the contact area between the workpiece and the clamp was not sufficient, which caused the workpiece to move easily during the punching process, reducing the clamping stability of the clamp, thereby reducing the punching accuracy of the punching machine, so it is necessary to make improvements. Utility Model Content

[0004] The purpose of the utility model is to provide a punching machine clamp to improve the clamping stability of the punching machine clamp in view of the above-mentioned existing technical problems.

[0005] In view of this, the utility model provides a punching machine clamp, comprising:

[0006] A punching table, wherein a drill hole is provided at the center of the punching table;

[0007] Also includes:

[0008] A plurality of arc-shaped splints, wherein the plurality of arc-shaped splints are evenly spaced and distributed along the circumference of the punching table;

[0009] A driving cylinder, wherein the driving cylinder is arranged on the punching table;

[0010] A movable connecting rod, wherein the movable connecting rod is arranged between adjacent arc-shaped clamping plates;

[0011] Among them, a plurality of arc-shaped clamping plates form a clamping ring through a movable connecting rod, and the driving cylinder can drive the arc-shaped clamping plates to move.

[0012] In the present technical scheme, during the workpiece drilling operation, the workpiece is placed at the center of the drilling table, and the driving cylinder drives a number of arc-shaped clamping plates to move toward the center of the drilling table. The arc-shaped clamping plates are close to each other so that the inner diameter of the clamping ring they constitute becomes smaller, and finally the workpiece located at the center of the drilling table is tightly clamped. The arrangement of a number of arc-shaped clamping plates effectively increases the clamping area of ​​the workpiece, thereby reducing the movement of the workpiece during the drilling process. Compared with the prior art, the utility model can effectively improve the clamping stability of the punching machine clamp.

[0013] In the above technical solution, further, the arc-shaped splint also includes:

[0014] An upper splint, wherein the upper splint is in the shape of an arc plate;

[0015] A lower clamping plate, wherein the lower clamping plate is in the shape of an arc plate;

[0016] A connecting column, wherein the connecting column is arranged between the upper clamping plate and the lower clamping plate;

[0017] Wherein, the upper clamping plate is located on the upper side of the lower clamping plate, the upper clamping plate and the lower clamping plate are staggered in the circumferential direction, one end of the connecting column is connected to the upper clamping plate, and the other end is connected to the lower clamping plate.

[0018] In the above technical solution, further, it also includes:

[0019] The anti-slip portion is arranged on the clamping surface of the arc-shaped clamping plate, and the anti-slip portion is elastic.

[0020] In the above technical solution, further, the anti-slip part is a carbon fiber airbag.

[0021] In the above technical solution, further, the anti-slip portion also includes:

[0022] An airbag body, wherein the airbag body is arranged on the clamping surface of the arc-shaped clamping plate;

[0023] A wear-resistant and anti-skid surface layer, wherein the wear-resistant and anti-skid surface layer is arranged on the outer surface of the airbag body;

[0024] The fiber inner layer is arranged on the inner surface of the airbag body.

[0025] The beneficial effects of the utility model are:

[0026] 1. The setting of several arc-shaped clamping plates effectively increases the clamping area of ​​the workpiece, thereby reducing the movement of the workpiece during the punching process, thereby improving the clamping stability of the fixture;

[0027] 2. The clamping area of ​​the workpiece is further increased by setting the upper clamping plate and the lower clamping plate, thereby reducing the movement of the workpiece during the drilling process;

[0028] 3. The setting of the anti-slip part improves the clamping stability of the clamp, and the elastic anti-slip part has a certain shock-absorbing effect, which can further prevent the workpiece from moving due to vibration during the drilling process, thereby improving the drilling effect of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a schematic structural diagram of a specific implementation method of the utility model.

[0031] Figure 2 It is a schematic diagram of the structure of the utility model in a top view.

[0032] Figure 3 This is a schematic structural diagram of Example 2 of the utility model.

[0033] Figure 4 This is a schematic structural diagram of Example 3 of the utility model.

[0034] Figure 5 It is a schematic diagram of the anti-skid structure of the utility model.

[0035] The symbols in the figure are:

[0036] 1-punching table, 100-drill hole, 2-arc-shaped splint, 20-upper splint, 21-lower splint, 22-connecting column, 3-anti-slip part, 30-airbag body, 31-wear-resistant and anti-slip surface layer, 32-fiber inner layer, 4-movable connecting rod, 5-driving cylinder. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] Embodiment 1:

[0040] The embodiment of the present application provides a punching machine fixture, comprising: a punching table 1, a drill hole 100 is provided at the center of the punching table 1;

[0041] The device also includes: a plurality of arc-shaped clamping plates 2, which are evenly spaced and distributed along the circumference of the punching table 1; a driving cylinder 5, which is arranged on the punching table 1; and a movable connecting rod 4, which is arranged between adjacent arc-shaped clamping plates 2.

[0042] Among them, a plurality of arc-shaped clamping plates 2 form a clamping ring through a movable connecting rod 4, and a driving cylinder 5 can drive the arc-shaped clamping plates 2 to move.

[0043] Moreover, the punching table 1 is fixedly installed on the working table of the punching machine, the arc-shaped splint 2 is concentric with the drill hole, the movable connecting rod 4 is a retractable rod, the movable connecting rod 4 has the same curvature as the arc-shaped splint 2, and the two ends of the movable connecting rod 4 are respectively connected to the ends of two adjacent arc-shaped splints 2. The driving cylinder 5 can have the same number as the number of arc-shaped splints 2, each driving cylinder 5 drives a corresponding arc-shaped splint 2, and the driving cylinders 5 operate synchronously with each other. The driving cylinder 5 can be a hydraulic cylinder or a pneumatic cylinder.

[0044] In this embodiment, during the workpiece drilling operation, the workpiece is placed at the center of the drilling table 1, and the driving cylinder 5 drives a plurality of arc-shaped clamping plates 2 to move toward the center of the drilling table 1. The plurality of arc-shaped clamping plates 2 are close to each other so that the inner diameter of the clamping ring formed by them becomes smaller, and finally the workpiece located at the center of the drilling table 1 is tightly clamped. The arrangement of a plurality of arc-shaped clamping plates 2 effectively increases the clamping area of ​​the workpiece, thereby reducing the movement of the workpiece during the drilling process. Compared with the prior art, the utility model can effectively improve the clamping stability of the punching machine clamp.

[0045] Embodiment 2:

[0046] This embodiment provides a punching machine clamp, which, in addition to the technical solutions of the above embodiments, also has the following technical features, the arc clamping plate 2 also includes: an upper clamping plate 20, the upper clamping plate 20 is in the shape of an arc plate; a lower clamping plate 21, the lower clamping plate 21 is in the shape of an arc plate; a connecting column 22, the connecting column 22 is arranged between the upper clamping plate 20 and the lower clamping plate 21;

[0047] The upper clamping plate 20 is located on the upper side of the lower clamping plate 21 , and the upper clamping plate 20 and the lower clamping plate 21 are staggered in the circumferential direction. One end of the connecting column 22 is connected to the upper clamping plate 20 , and the other end is connected to the lower clamping plate 21 .

[0048] Moreover, the driving cylinder 5 can be connected to the lower clamping plate 21 and drive the lower clamping plate 21 to move.

[0049] In the present embodiment, during the workpiece punching operation, the workpiece is placed at the center of the punching table 1, and the driving cylinder 5 drives the plurality of arc-shaped clamping plates 2 to move toward the center of the punching table 1. The plurality of arc-shaped clamping plates 2 are close to each other so that the inner diameter of the clamping ring formed by them becomes smaller. At the same time, the upper clamping plate 20 can move with the lower clamping plate 21 under the action of the connecting column 22. Finally, the upper clamping plate 20 and the lower clamping plate 21 tightly clamp the workpiece located at the center of the punching table 1, and two upper and lower clamping rings are formed by the upper clamping plate 20 and the lower clamping plate 21, so that the clamping surface of the workpiece in the circumferential direction can be completely covered, further increasing the clamping area of ​​the workpiece, thereby reducing the movement of the workpiece during the punching process. Compared with the prior art, the utility model can effectively improve the clamping stability of the punching machine clamp.

[0050] Embodiment 3:

[0051] This embodiment provides a punching machine clamp, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including: an anti-slip portion 3, which is arranged on the clamping surface of the arc-shaped clamping plate 2, and the anti-slip portion 3 is elastic.

[0052] The anti-slip part 3 is a carbon fiber airbag.

[0053] The anti-slip part 3 also includes: an airbag body 30, which is arranged on the clamping surface of the arc-shaped clamping plate 2; a wear-resistant and anti-slip surface layer 31, which is arranged on the outer surface of the airbag body 30; and a fiber inner layer 32, which is arranged on the inner surface of the airbag body 30.

[0054] In this embodiment, during the workpiece drilling operation, the workpiece is placed at the center of the drilling table 1, and the driving cylinder 5 drives the plurality of arc-shaped clamping plates 2 to move toward the center of the drilling table 1. The plurality of arc-shaped clamping plates 2 are close to each other so that the inner diameter of the clamping ring formed by them becomes smaller. At the same time, the upper clamping plate 20 can move with the lower clamping plate 21 under the action of the connecting column 22. Finally, the upper clamping plate 20 and the lower clamping plate 21 will tightly clamp the workpiece located at the center of the drilling table 1, and the upper and lower clamping rings are formed by the upper clamping plate 20 and the lower clamping plate 21, so that the clamping surface of the workpiece in the circumferential direction can be completely covered, further increasing the clamping area of ​​the workpiece. The movement of the workpiece during the drilling process is reduced. At the same time, after the workpiece is clamped, the anti-slip part 3 is squeezed and reacts on the surface of the workpiece to further clamp the workpiece between the several arc-shaped clamping plates 2. The elastic force generated by the pressure on the anti-slip part 3 can buffer the vibration generated during the drilling process of the workpiece, which can prevent the workpiece from moving due to vibration during the drilling process, thereby improving the drilling effect of the workpiece. The arrangement of the wear-resistant and anti-slip surface layer 31 and the fiber inner layer 32 can effectively improve the structural strength of the anti-slip part 3, thereby preventing the anti-slip part 3 from being damaged and increasing the service life of the anti-slip part 3.

[0055] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A punching machine fixture, comprising: A drilling platform (1), wherein a drill hole (100) is provided at the center of the drilling platform (1); It is characterized by further comprising: A plurality of arc-shaped clamping plates (2), wherein the plurality of arc-shaped clamping plates (2) are evenly spaced and distributed along the circumference of the punching platform (1); A driving cylinder (5), wherein the driving cylinder (5) is arranged on the punching platform (1); A movable connecting rod (4), wherein the movable connecting rod (4) is arranged between adjacent arc-shaped clamping plates (2); A plurality of arc-shaped clamping plates (2) form a clamping ring through a movable connecting rod (4), and the driving cylinder (5) can drive the arc-shaped clamping plates (2) to move.

2. A punching machine fixture according to claim 1, characterized in that: The arc-shaped splint (2) further comprises: An upper clamping plate (20), wherein the upper clamping plate (20) is in the shape of an arc plate; A lower clamping plate (21), wherein the lower clamping plate (21) is in the shape of an arc plate; A connecting column (22), wherein the connecting column (22) is arranged between the upper clamping plate (20) and the lower clamping plate (21); The upper clamping plate (20) is located on the upper side of the lower clamping plate (21), and the upper clamping plate (20) and the lower clamping plate (21) are staggered in the circumferential direction. One end of the connecting column (22) is connected to the upper clamping plate (20), and the other end is connected to the lower clamping plate (21).

3. A punching machine fixture according to claim 2, characterized in that: Also includes: An anti-slip portion (3), wherein the anti-slip portion (3) is arranged on a clamping surface of the arc-shaped clamping plate (2), and the anti-slip portion (3) is elastic.

4. A punching machine fixture according to claim 3, characterized in that: The anti-slip part (3) is a carbon fiber airbag.

5. A punching machine fixture according to claim 4, characterized in that: The anti-slip portion (3) further comprises: An airbag body (30), wherein the airbag body (30) is arranged on a clamping surface of the arc-shaped clamping plate (2); A wear-resistant and anti-skid surface layer (31), wherein the wear-resistant and anti-skid surface layer (31) is arranged on the outer surface of the airbag body (30); A fiber inner layer (32) is arranged on the inner surface of the airbag body (30).

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