A clamp for a punch press

Abstract

This utility model belongs to the field of punch press technology, and particularly relates to a punch press fixture, comprising: a machine tool processing table, a clamping platform fixedly installed on the top surface of the machine tool processing table, two lower clamping plates slidably installed on the top surface of the clamping platform, and an upper clamping plate above each of the two lower clamping plates. When clamping a workpiece, the distance between the lower clamping plates and the upper clamping plates can be adjusted according to the height of the workpiece, thereby enhancing the stability of workpiece clamping. When adjusting the distance between the lower clamping plates and the upper clamping plates, a motor A is started to drive the lead screw to rotate. When the lead screw rotates, it drives two threaded sleeves to move. The two threaded sleeves drive two moving seats to move closer or further away. When the two moving seats move, the cooperation of the two fixed seats and the two connecting columns will drive the upper clamping plate to rise and fall, thereby controlling the height of the upper clamping plate. This facilitates the height adjustment of the upper clamping plate according to workpieces of different heights, enhancing the clamping effect.

Description

Technical Field

[0001] This utility model belongs to the field of punch press technology, and in particular relates to a punch press fixture. Background Technology

[0002] A punch press is a stamping press. In national production, stamping technology has many advantages over traditional machining, such as saving materials and energy, high efficiency, low operator skill requirements, and the ability to produce products that cannot be achieved by machining through the application of various molds. Stamping production is mainly for sheet metal. Through molds, blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting, and extrusion parts can be produced, and it is widely used in various fields.

[0003] During the stamping process of a punch press, a limiting fixture is needed to limit the product. Existing limiting fixtures are inconvenient to adjust, cannot clamp products of different sizes during use, and need to be re-fixed if stamping is required at different positions of the product. The operation steps are cumbersome and reduce stamping efficiency. In view of this, we propose a fixture for punch presses. Utility Model Content

[0004] The purpose of this utility model is to provide a punch press fixture to address the aforementioned technical problems, thereby solving the issues raised in the background art.

[0005] In view of this, the present invention provides a fixture for a punch press, comprising:

[0006] A machine tool processing table, wherein a clamping platform is fixedly installed on the top surface of the machine tool processing table, and two lower clamping plates are slidably installed on the top surface of the clamping platform, and an upper clamping plate is above each of the two lower clamping plates;

[0007] Two sets of lifting components are respectively installed on two lower clamping plates and are used to drive the two upper clamping plates to rise and fall.

[0008] Two protrusions are rotatably mounted on the top surface of the clamping platform. The two protrusions are symmetrically arranged on the top surface of the clamping platform, and the convex surfaces of the two protrusions respectively contact one side of the lower clamping plate.

[0009] A rotating assembly is disposed on the bottom surface of the machine tool processing table and is used to drive two protrusions to rotate;

[0010] Two side plates are fixedly installed on both sides of the clamping platform. Two connecting rods are fixedly installed between the two side plates. Sliding sleeves are fixedly installed on both sides of the two lower clamping plates. The four sliding sleeves are slidably connected to the two connecting rods respectively. Two return springs are respectively sleeved on the two connecting rods. One end of the four return springs is fixedly connected to one side of the two side plates respectively. The other end of the four return springs is fixedly connected to one side of the four sliding sleeves respectively.

[0011] In the above technical solution, the lifting assembly further includes two movable seats, which are slidably installed on the top surface of the lower clamping plate. Two fixed seats are fixedly installed on the bottom surface of the upper clamping plate. A connecting column is rotatably installed in each of the two fixed seats. The bottom ends of the two connecting columns are rotatably installed in the two movable seats respectively. When the two movable seats move, the upper clamping plate will be lifted and lowered through the cooperation of the two fixed seats and the two connecting columns, thereby controlling the height of the upper clamping plate. This facilitates the height adjustment of the upper clamping plate according to workpieces of different heights, enhancing the clamping effect.

[0012] In the above technical solution, the lifting assembly further includes a plate groove, which is formed on the top surface of the lower clamping plate. A lead screw is rotatably installed in the plate groove. The lead screw has two sections of threads with opposite directions of rotation. Two threaded sleeves are threadedly connected to the lead screw. The two threaded sleeves are slidably connected to the plate groove. The top ends of the two threaded sleeves are respectively fixedly connected to the bottom surfaces of the two movable seats. A motor A is fixedly installed on one side of the lower clamping plate. One end of the output shaft of the motor A is fixedly connected to one end of the lead screw. When the motor A is started, it drives the lead screw to rotate. When the lead screw rotates, it drives the two threaded sleeves to move, thereby moving the two movable seats closer to or further away from each other.

[0013] In the above technical solution, further, the rotating assembly includes two first rotating shafts, which are rotatably mounted on the lower clamping plate and the clamping table. The top ends of the two first rotating shafts are respectively fixedly connected to the bottom surfaces of two protrusions. A second rotating shaft is rotatably mounted on the bottom surface of the machine tool processing table. A sprocket is fixedly mounted on the outer wall of both the second rotating shaft and one of the first rotating shafts. The two sprockets are provided with the same chain. A gear is fixedly mounted on the bottom end of the other first rotating shaft and the bottom end of the second rotating shaft. The two gears mesh with each other. A mounting bracket is fixedly mounted on the bottom surface of the machine tool processing table. A motor B is fixedly mounted on the bottom surface of the mounting bracket. The top end of the output shaft of the motor B is fixedly connected to the bottom end of the first rotating shaft. Next, when clamping the workpiece, the start motor B drives one of the first rotating shafts to rotate. When the first rotating shaft rotates, it drives the second rotating shaft to rotate through the cooperation of two sprockets and a chain. When the second rotating shaft rotates, it drives the other first rotating shaft to rotate through two gears. At this time, the two first rotating shafts rotate in opposite directions, thereby driving the two protrusions to rotate in opposite directions. When the two protrusions rotate in opposite directions, the convex surfaces of the two protrusions will contact one side of the two lower clamping plates, thereby pushing the lower clamping plates to move. This realizes the adjustment of the distance between the two lower clamping plates, which is convenient for clamping workpieces of different sizes. In addition, by setting multiple return springs, after the workpiece is processed and removed from between the two lower clamping plates, it can drive the two lower clamping plates to return to their original positions.

[0014] In the above technical solution, furthermore, multiple fixing tubes are fixedly installed on the top surface of the lower clamping plate, and sliding rods are slidably installed inside each of the multiple fixing tubes. The top ends of the multiple sliding rods are fixedly connected to the bottom surface of the upper clamping plate. When the upper clamping plate is raised or lowered, the multiple fixing tubes and multiple sliding rods will assist the upper clamping plate in moving, thereby enhancing the stability of the upper clamping plate when moving.

[0015] In the above technical solution, furthermore, clamping grooves are provided on the sides of the two lower clamping plates and the two upper clamping plates that are close to each other. The clamping grooves are trapezoidal and the surface of the clamping grooves is provided with anti-slip texture. When the two lower clamping plates and the two upper clamping plates clamp the workpiece, the clamping grooves facilitate the clamping of workpieces of different sizes.

[0016] In the above technical solution, furthermore, multiple support legs are fixedly installed on the bottom surface of the machine tool processing table, which enhances the stability of the machine tool processing table when it is placed.

[0017] The beneficial effects of this utility model are:

[0018] 1. This punch press fixture allows for adjustment of the distance between the lower and upper clamping plates when clamping a workpiece, based on the workpiece's height. This enhances the stability of workpiece clamping. When adjusting the distance between the lower and upper clamping plates, motor A is started, driving the lead screw to rotate. The rotation of the lead screw moves two threaded sleeves, which in turn move two moving seats closer or further apart. As the two moving seats move, the cooperation between the two fixed seats and the two connecting columns causes the upper clamping plate to rise or fall, thus controlling its height. This facilitates height adjustment of the upper clamping plate according to workpieces of different heights, enhancing the clamping effect.

[0019] 2. In this punch press fixture, when clamping a workpiece, the starting motor B drives one of the first rotating shafts to rotate. When the first rotating shaft rotates, it drives a second rotating shaft to rotate through the cooperation of two sprockets and a chain. When the second rotating shaft rotates, it drives another first rotating shaft to rotate through two gears. At this time, the two first rotating shafts rotate in opposite directions, thereby driving two protrusions to rotate in opposite directions. When the two protrusions rotate in opposite directions, the convex surfaces of the two protrusions will contact one side of the two lower clamping plates, thereby pushing the lower clamping plates to move. This allows for adjustment of the distance between the two lower clamping plates, facilitating the clamping of workpieces of different sizes. Furthermore, by setting multiple return springs, after the workpiece is processed and removed from between the two lower clamping plates, the two lower clamping plates can be reset. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the mounting bracket structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the lower clamping plate structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the clamping platform of this utility model.

[0024] The markings in the diagram are as follows:

[0025] 1. Machine tool processing table; 2. Lower clamping plate; 3. Upper clamping plate; 4. Fixed tube; 5. Slide rod; 6. First rotating shaft; 7. Protrusion; 8. Clamping table; 9. Side plate; 10. Connecting rod; 11. Sliding sleeve; 12. Return spring; 13. Moving seat; 14. Fixed seat; 15. Connecting column; 16. Plate groove; 17. Lead screw; 18. Threaded sleeve; 19. Motor A; 20. Second rotating shaft; 21. Sprocket; 22. Chain; 23. Gear; 24. Mounting bracket; 25. Motor B; 26. Clamping groove; 27. Support leg. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0030] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0031] Example 1:

[0032] Please see Figures 1-4 As shown, this embodiment provides a fixture for a punch press.

[0033] The machine tool includes: a machining table 1, on the top surface of which a clamping table 8 is fixedly mounted; two lower clamping plates 2 are slidably mounted on the top surface of the clamping table 8; and an upper clamping plate 3 is located above each of the lower clamping plates 2; two sets of lifting assemblies, respectively mounted on the two lower clamping plates 2, for driving the two upper clamping plates 3 to rise and fall; two protrusions 7, rotatably mounted on the top surface of the clamping table 8, symmetrically arranged on the top surface of the clamping table 8, with the convex surfaces of the two protrusions 7 contacting one side of each of the lower clamping plates 2; a rotating assembly, located on the bottom surface of the machining table 1, for driving the two protrusions 7 to rotate; two side plates 9, fixedly mounted on both sides of the clamping table 8; two connecting rods 10 fixedly mounted between the two side plates 9; and four sliding sleeves 11 fixedly mounted on both sides of each of the two lower clamping plates 2, with the four sliding sleeves 11 slidably connected to the two connecting rods 10 respectively. Two return springs 12 are respectively fitted on each connecting rod 10. One end of each of the four return springs 12 is fixedly connected to one side of each of the two side plates 9, and the other end of each of the four return springs 12 is fixedly connected to one side of each of the four sliding sleeves 11. When clamping the workpiece, the distance between the lower clamping plate 2 and the upper clamping plate 3 can be adjusted according to the height of the workpiece, thereby enhancing the stability of the workpiece clamping. When adjusting the distance between the lower clamping plate 2 and the upper clamping plate 3, the motor A19 is started to drive the lead screw 17 to rotate. When the lead screw 17 rotates, it will drive the two threaded sleeves 18 to move. The two threaded sleeves 18 will drive the two moving seats 13 to move closer or further away. When the two moving seats 13 move, the two fixed seats 14 and the two connecting columns 15 will drive the upper clamping plate 3 to rise and fall, thereby controlling the height of the upper clamping plate 3. This makes it convenient to adjust the height of the upper clamping plate 3 according to the workpiece of different heights, thereby enhancing the clamping effect.

[0034] Example 2:

[0035] This embodiment provides a punch press fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0036] The lifting assembly includes two movable seats 13, which are slidably mounted on the top surface of the lower clamping plate 2. Two fixed seats 14 are fixedly mounted on the bottom surface of the upper clamping plate 3. A connecting column 15 is rotatably mounted inside each of the two fixed seats 14. The bottom ends of the two connecting columns 15 are rotatably mounted inside the two movable seats 13. When the two movable seats 13 move, the upper clamping plate 3 will be raised or lowered through the cooperation of the two fixed seats 14 and the two connecting columns 15, thereby controlling the height of the upper clamping plate 3. This allows for height adjustment of the upper clamping plate 3 according to workpieces of different heights, enhancing the clamping effect.

[0037] Example 3:

[0038] This embodiment provides a punch press fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0039] The lifting assembly also includes a slot 16, which is located on the top surface of the lower clamping plate 2. A lead screw 17 is rotatably installed inside the slot 16. The lead screw 17 has two threads with opposite directions. Two threaded sleeves 18 are threadedly connected to the lead screw 17. The two threaded sleeves 18 are slidably connected to the slot 16. The top ends of the two threaded sleeves 18 are fixedly connected to the bottom surfaces of the two movable seats 13, respectively. A motor A19 is fixedly installed on one side of the lower clamping plate 2. One end of the output shaft of the motor A19 is fixedly connected to one end of the lead screw 17. When the motor A19 is started, it drives the lead screw 17 to rotate. When the lead screw 17 rotates, it drives the two threaded sleeves 18 to move, thereby moving the two movable seats 13 closer to or further away from each other.

[0040] Example 4:

[0041] This embodiment provides a punch press fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] The rotating assembly includes two first rotating shafts 6, which are rotatably mounted on the lower clamping plate 2 and the clamping table 8. The top ends of the two first rotating shafts 6 are fixedly connected to the bottom surfaces of two protrusions 7, respectively. A second rotating shaft 20 is rotatably mounted on the bottom surface of the machine tool processing table 1. A sprocket 21 is fixedly mounted on the outer wall of both the second rotating shaft 20 and one of the first rotating shafts 6. The two sprockets 21 are equipped with the same chain 22. A gear 23 is fixedly mounted on the bottom end of the other first rotating shaft 6 and the bottom end of the second rotating shaft 20. The two gears 23 mesh with each other. A mounting frame 24 is fixedly mounted on the bottom surface of the machine tool processing table 1. A motor B25 is fixedly mounted on the bottom surface of the mounting frame 24. The top end of the output shaft of the motor B25 is fixedly connected to the bottom end of the first rotating shaft 6. When clamping the workpiece... The starter motor B25 drives one of the first rotating shafts 6 to rotate. When one of the first rotating shafts 6 rotates, it drives the second rotating shaft 20 to rotate through the cooperation of two sprockets 21 and chain 22. When the second rotating shaft 20 rotates, it drives the other first rotating shaft 6 to rotate through two gears 23. At this time, the two first rotating shafts 6 rotate in opposite directions, thereby driving the two protrusions 7 to rotate in opposite directions. When the two protrusions 7 rotate in opposite directions, the convex surfaces of the two protrusions 7 will contact one side of the two lower clamping plates 2, thereby pushing the lower clamping plates 2 to move, thereby realizing the adjustment of the distance between the two lower clamping plates 2, which is convenient for clamping workpieces of different sizes. In addition, by setting multiple return springs 12, after the workpiece is processed and removed from between the two lower clamping plates 2, it can drive the two lower clamping plates 2 to reset.

[0043] Example 5:

[0044] This embodiment provides a punch press fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The lower clamping plate 2 has multiple fixed tubes 4 fixedly installed on its top surface. Each fixed tube 4 has a sliding rod 5 slidably installed inside it. The top of each sliding rod 5 is fixedly connected to the bottom surface of the upper clamping plate 3. When the upper clamping plate 3 is raised or lowered, the multiple fixed tubes 4 and multiple sliding rods 5 assist the upper clamping plate 3 in moving, thereby enhancing the stability of the upper clamping plate 3 during movement.

[0046] Example 6:

[0047] This embodiment provides a punch press fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0048] The two lower clamping plates 2 and the two upper clamping plates 3 are provided with clamping grooves 26 on the side that are close to each other. The clamping grooves 26 are trapezoidal and the surface of the clamping grooves 26 is provided with anti-slip texture. When the two lower clamping plates 2 and the two upper clamping plates 3 clamp the workpiece, the clamping grooves 26 can be used to clamp workpieces of different sizes.

[0049] Example 7:

[0050] This embodiment provides a punch press fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] The bottom surface of the machine tool processing table 1 is fixedly equipped with multiple support legs 27, which enhances the stability of the machine tool processing table 1 when it is placed.

[0052] In use: When clamping a workpiece, the distance between the lower clamping plate 2 and the upper clamping plate 3 can be adjusted according to the height of the workpiece to enhance the stability of the workpiece clamping. When adjusting the distance between the lower clamping plate 2 and the upper clamping plate 3, the motor A19 is started to drive the lead screw 17 to rotate. When the lead screw 17 rotates, it will drive the two threaded sleeves 18 to move. The two threaded sleeves 18 will drive the two moving seats 13 to move closer or further away. When the two moving seats 13 move, the two fixed seats 14 and the two connecting columns 15 will drive the upper clamping plate 3 to rise and fall, thereby controlling the height of the upper clamping plate 3. This makes it convenient to adjust the height of the upper clamping plate 3 according to the workpiece of different heights and enhance the clamping effect.

[0053] When clamping the workpiece, the start motor B25 drives one of the first rotating shafts 6 to rotate. When the first rotating shaft 6 rotates, it drives the second rotating shaft 20 to rotate through the cooperation of two sprockets 21 and chain 22. When the second rotating shaft 20 rotates, it drives the other first rotating shaft 6 to rotate through two gears 23. At this time, the two first rotating shafts 6 rotate in opposite directions, thereby driving the two protrusions 7 to rotate in opposite directions. When the two protrusions 7 rotate in opposite directions, the convex surfaces of the two protrusions 7 will contact one side of the two lower clamping plates 2, thereby pushing the lower clamping plates 2 to move, thereby realizing the adjustment of the distance between the two lower clamping plates 2, which is convenient for clamping workpieces of different sizes. In addition, by setting multiple return springs 12, after the workpiece is processed and removed from between the two lower clamping plates 2, the two lower clamping plates 2 can be driven to reset.

[0054] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A clamp for a punch press, characterized by, include: A machine tool processing table (1) is provided with a clamping table (8) fixedly installed on the top surface of the machine tool processing table (1). Two lower clamping plates (2) are slidably installed on the top surface of the clamping table (8), and an upper clamping plate (3) is provided above each of the two lower clamping plates (2). Two sets of lifting components are respectively set on two lower clamping plates (2) and used to drive the two upper clamping plates (3) to rise and fall; Two protrusions (7) are rotatably mounted on the top surface of the clamping platform (8). The two protrusions (7) are symmetrically arranged on the top surface of the clamping platform (8). The convex surfaces of the two protrusions (7) respectively contact one side of the lower clamping plate (2). A rotating assembly is disposed on the bottom surface of the machine tool processing table (1) and is used to drive the two protrusions (7) to rotate; Two side plates (9) are fixedly installed on both sides of the clamping platform (8). Two connecting rods (10) are fixedly installed between the two side plates (9). Sliding sleeves (11) are fixedly installed on both sides of the two lower clamping plates (2). The four sliding sleeves (11) are slidably connected to the two connecting rods (10) respectively. Two return springs (12) are respectively sleeved on the two connecting rods (10). One end of the four return springs (12) is fixedly connected to one side of the two side plates (9) respectively. The other end of the four return springs (12) is fixedly connected to one side of the four sliding sleeves (11) respectively.

2. The fixture for a punch press according to claim 1, wherein The lifting assembly includes two movable seats (13), which are slidably mounted on the top surface of the lower clamping plate (2). Two fixed seats (14) are fixedly mounted on the bottom surface of the upper clamping plate (3). A connecting column (15) is rotatably mounted in each of the two fixed seats (14), and the bottom ends of the two connecting columns (15) are rotatably mounted in the two movable seats (13).

3. The fixture for a punch press according to claim 2, wherein The lifting assembly also includes a plate groove (16), which is opened on the top surface of the lower clamping plate (2). A lead screw (17) is rotatably installed in the plate groove (16). The lead screw (17) has two threads with opposite directions. Two threaded sleeves (18) are threadedly connected to the lead screw (17). The two threaded sleeves (18) are slidably connected to the plate groove (16). The top ends of the two threaded sleeves (18) are fixedly connected to the bottom surfaces of the two moving seats (13). A motor A (19) is fixedly installed on one side of the lower clamping plate (2). One end of the output shaft of the motor A (19) is fixedly connected to one end of the lead screw (17).

4. The fixture for a punch press according to claim 1, wherein The rotating assembly includes two first rotating shafts (6), which are rotatably mounted on the lower clamping plate (2) and the clamping table (8). The top ends of the two first rotating shafts (6) are fixedly connected to the bottom surfaces of two protrusions (7). A second rotating shaft (20) is rotatably mounted on the bottom surface of the machine tool processing table (1). A sprocket (21) is fixedly mounted on the outer side wall of the second rotating shaft (20) and one of the first rotating shafts (6). The two sprockets (21) are provided with the same chain (22). A gear (23) is fixedly mounted on the bottom end of the other first rotating shaft (6) and the bottom end of the second rotating shaft (20). The two gears (23) mesh with each other. A mounting frame (24) is fixedly mounted on the bottom surface of the machine tool processing table (1). A motor B (25) is fixedly mounted on the bottom surface of the mounting frame (24). The top end of the output shaft of the motor B (25) is fixedly connected to the bottom end of the first rotating shaft (6).

5. The fixture for a punch press according to claim 1, wherein The top surface of the lower clamping plate (2) is fixedly installed with multiple fixing tubes (4), and each of the multiple fixing tubes (4) is slidably installed with a slide rod (5). The top of the multiple slide rods (5) is fixedly connected to the bottom surface of the upper clamping plate (3).

6. The fixture for a punch press according to claim 1, wherein The two lower clamping plates (2) and the two upper clamping plates (3) are provided with clamping grooves (26) on the side that are close to each other. The clamping grooves (26) are trapezoidal and the surface of the clamping grooves (26) is provided with anti-slip texture.

7. The fixture for a punch press according to claim 1, wherein The bottom surface of the machine tool processing table (1) is fixedly equipped with multiple support legs (27).

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