Workpiece positioning device and punching machine

Abstract

The utility model discloses a work piece positioning device and punch press, including the work table, the top of work table is fixedly connected with a U-shaped plate, the inner top of U-shaped plate is fixedly connected with a hydraulic rod, the output end of the hydraulic rod is fixedly connected with a lifting plate, the bottom of the lifting plate is fixedly connected with two symmetrically arranged fixed rods, and the fixed rods are fixedly connected with the lifting plate. The top of the workbench is fixedly connected with two supporting rods, the two supporting rods are jointly and fixedly connected with a ring body, a disc workpiece is placed on the top of the ring body, the inner wall of the U-shaped plate is fixedly connected with two symmetrically-arranged hollow columns, and each hollow column is provided with a clamping mechanism. The hydraulic rod moves downwards, so that the clamping plates on the two sides can move relatively, a workpiece is limited and fixed, it is guaranteed that the clamping plates are stable in follow-up punching and drilling machining, the workpiece can be automatically clamped, the automation degree is high, and damage to personnel is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to a workpiece positioning device and a punching machine. Background Art

[0002] A punching machine is a kind of punching press. After the raw materials are installed, under the drive of the power mechanism, the punching die acts on the materials to complete punching, which is a kind of mechanical equipment.

[0003] When punching and drilling a disc workpiece, it is often necessary for workers to hold the disc workpiece by hand and place it on the punching press for punching and drilling. During the process of the workers holding the plate by hand, the stability is poor, resulting in changes in punching and drilling, and the punching pressure is extremely easy to eject the parts, causing safety problems to the personnel. To solve the above problems, a workpiece positioning device and a punching press are proposed in this application. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a workpiece positioning device and a punching press are proposed. Through the downward movement of the hydraulic rod, the clamping plates on both sides can move relatively, realizing the limit fixation of the workpiece, ensuring the stability of the clamping plates during subsequent punching and drilling processing, and can automatically clamp the workpiece, with high automation and avoiding damage to personnel.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A workpiece positioning device includes a workbench. A U-shaped plate is fixedly connected to the top of the workbench. A hydraulic rod is fixedly connected to the inner top of the U-shaped plate. The output end of the hydraulic rod is fixedly connected to a lifting plate. A punching die is fixedly connected to the bottom of the lifting plate. Two symmetrically arranged fixed rods are fixedly connected to the bottom of the lifting plate. Two support rods are fixedly connected to the top of the workbench. The two support rods are jointly fixedly connected to a ring body. A disc workpiece is placed on the top of the ring body. Two symmetrically arranged hollow columns are fixedly connected to the inner wall of the U-shaped plate. A clamping mechanism is arranged on each hollow column. The clamping mechanism includes a sliding column that penetrates through and is slidably connected to the hollow column. One end of the sliding column close to the U-shaped plate is fixedly connected to a limit block. The limit block is located inside the hollow column and is slidably connected to it. A tension spring is fixedly connected to the side wall of the limit block. The tension spring is fixedly connected to the inner wall of the hollow column to provide a pulling force for the sliding column away from the disc workpiece. The other end of the sliding column away from the limit block is fixedly connected to a clamping plate. A dust removal mechanism is arranged on the lifting plate.

[0007] Preferably, a wedge block is fixedly connected to the fixed rod, and a wedge groove is penetrated and opened on the sliding column. The wedge groove is matched with the wedge block.

[0008] Preferably, a sliding groove is provided in the hollow column, and the limiting block is located in the sliding groove and is slidably connected to its inner wall.

[0009] Preferably, the bottom of the stamping die is conical.

[0010] Preferably, limiting grooves adapted to the disc workpiece are formed at the opposite ends of the two clamping plates.

[0011] Preferably, the inner wall of the limiting groove is adapted to the outer wall of the disc workpiece.

[0012] Preferably, the dust removal mechanism includes a dust suction hollow tube fixedly connected to the bottom of the lifting plate. A plurality of dust suction heads are evenly arranged and installed at the bottom of the dust suction hollow tube. The dust suction hollow tube is fixedly connected to a connecting pipe communicated therewith. The connecting pipe penetrates through the lifting plate. A dust collection box and a negative pressure fan are fixedly connected to the top of the lifting plate. The connecting pipe is fixedly connected to the side wall of the dust collection box. The dust collection box is communicated with the negative pressure fan. A dustproof net is fixedly connected inside the negative pressure fan.

[0013] The present utility model further provides a punching machine, and the punching machine adopts the above-mentioned workpiece positioning device.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The output end of the hydraulic rod drives the lifting plate and the two fixing rods to move downward. The wedge-shaped blocks arranged on the fixing rods can make the sliding columns, limiting blocks and clamping plates on both sides move relatively until the two clamping plates clamp the disc workpiece, so as to complete the limiting and clamping of the disc workpiece and ensure the stability of the disc workpiece during the subsequent stamping and drilling processes.

[0016] 2. In this application, the machine tool can replace manual operation for automatic clamping of workpieces, with a high degree of automation and ensuring the safety of staff.

[0017] In summary, the downward movement of the hydraulic rod can make the clamping plates on both sides move relatively, realizing the limiting and fixing of the workpiece, ensuring the stability of the clamping plates during the subsequent stamping and drilling processes, and can automatically clamp the workpiece, with a high degree of automation and avoiding damage to personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a workpiece positioning device proposed by the present utility model excluding the dust removal device;

[0019] Figure 2 is a sectional view of a workpiece positioning device proposed by the present utility model;

[0020] Figure 3 isFigure 2 Enlarged view of the structure at A in the figure;

[0021] Figure 4 It is the first schematic structural view of a workpiece positioning device proposed by the present utility model;

[0022] Figure 5 It is the second schematic structural view of a workpiece positioning device proposed by the present utility model.

[0023] In the figure: 1 workbench, 2 U-shaped plate, 3 hydraulic rod, 4 lifting plate, 5 stamping die, 6 fixed rod, 7 support rod, 8 ring body, 9 disc workpiece, 10 hollow column, 11 tension spring, 12 limit block, 13 sliding column, 14 wedge-shaped groove, 15 clamping plate, 16 limit groove, 17 dust-absorbing hollow tube, 18 connecting pipe, 19 dust collection box, 20 negative pressure fan. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Refer to Figures 1 - 5 , a workpiece positioning device, including a workbench 1, a U-shaped plate 2 is fixedly connected to the top of the workbench 1, a hydraulic rod 3 is fixedly connected to the inner top of the U-shaped plate 2, the output end of the hydraulic rod 3 is fixedly connected to a lifting plate 4, and a stamping die 5 is fixedly connected to the bottom of the lifting plate 4. The bottom of the stamping die 5 is arranged in a conical shape.

[0026] It should be noted that: by moving the stamping die 5 downward, the limited disc workpiece 9 can be subjected to stamping and drilling processing.

[0027] Two symmetrically arranged fixed rods 6 are fixedly connected to the bottom of the lifting plate 4, two support rods 7 are fixedly connected to the top of the workbench 1, a ring body 8 is fixedly connected by the two support rods 7 together, and a disc workpiece 9 is placed on the top of the ring body 8.

[0028] It should be noted that: the disc workpiece 9 can be placed, so that the disc workpiece 9 can be easily inserted into the limit groove 16 to complete the limitation of the disc workpiece 9.

[0029] Two symmetrically arranged hollow columns 10 are fixedly connected to the inner wall of the U-shaped plate 2. A clamping mechanism is provided on each hollow column 10. The clamping mechanism includes a sliding column 13 penetrating through and slidingly connected to the hollow column 10. A wedge-shaped block is fixedly connected to the fixed rod 6, and a wedge-shaped groove 14 is penetrated and opened on the sliding column 13. The wedge-shaped groove 14 is matched with the wedge-shaped block.

[0030] It should be noted that: by inserting the wedge block downward into the wedge groove 14, the sliding columns 13 on both sides move relatively, so as to clamp and fix the disc workpiece 9.

[0031] One end of the sliding column 13 close to the U-shaped plate 2 is fixedly connected with a limit block 12. The limit block 12 is located in the hollow column 10 and is slidably connected with it. The cross section of the limit block 12 is square, which can limit the limit block 12 to slide in the hollow column 10. A sliding groove is arranged in the hollow column 10. The limit block 12 is located in the sliding groove and is slidably connected with its inner wall. A tension spring 11 is fixedly connected to the side wall of the limit block 12, and the tension spring 11 is fixedly connected to the inner wall of the hollow column 10. The tension spring 11 provides a pulling force for the sliding column 13 away from the disc workpiece 9. One end of the sliding column 13 away from the limit block 12 is fixedly connected with a clamping plate 15. Limiting grooves 16 matched with the disc workpiece 9 are formed at the opposite ends of the two clamping plates 15. The inner wall of the limiting groove 16 is matched with the outer wall of the disc workpiece 9.

[0032] It should be noted that: by setting the cooperation between the inner wall of the limiting groove 16 and the outer wall of the disc workpiece 9, the disc workpiece 9 to be punched and drilled can be clamped and fixed.

[0033] A dust removal mechanism is arranged on the lifting plate 4. The dust removal mechanism includes a dust suction hollow tube 17 fixedly connected to the bottom of the lifting plate 4. A plurality of dust suction heads are arranged at equal intervals at the bottom of the dust suction hollow tube 17. The dust suction hollow tube 17 is fixedly connected with a connecting tube 18 communicated with it. The connecting tube 18 penetrates through the lifting plate 4. A dust collection box 19 and a negative pressure fan 20 are fixedly connected to the top of the lifting plate 4. The connecting tube 18 is fixedly connected to the side wall of the dust collection box 19. The dust collection box 19 is communicated with the negative pressure fan 20. A dust-proof net is fixedly connected in the negative pressure fan 20.

[0034] It should be noted that: when the negative pressure fan 20 is started to pump the air in the dust collection box 19 away to form a negative pressure, the dust generated by external drilling enters the dust collection box 19 through the dust suction head, the dust suction hollow tube 17 and the connecting tube 18 along with the air. The dust in the air is filtered and intercepted by the dust-proof net to realize the collection of dust.

[0035] The present utility model also provides a punching machine, and the punching machine adopts the above-mentioned workpiece positioning device.

[0036] Working principle of the utility model: When it is necessary to perform stamping and drilling on the disc workpiece 9, the staff places the disc workpiece 9 on the ring body 8, starts the hydraulic rod 3, and drives the lifting plate 4 and the stamping die 5 to move downward through the output end of the hydraulic rod 3 for stamping and drilling; when the lifting plate 4 moves downward, it drives the two fixing rods 6 to move downward, so that the two fixing rods 6 are respectively inserted into the wedge-shaped grooves 14, and the wedge-shaped blocks arranged on the fixing rods 6 can make the sliding columns 13, the limiting blocks 12 and the clamping plates 15 on both sides move relatively. During this process, the tension spring 11 is stretched until the two clamping plates 15 clamp the disc workpiece 9 (the left and right sides of the disc workpiece 9 are respectively inserted into the limiting grooves 16 and abutted against their inner walls), and the limiting and clamping of the disc workpiece 9 can be completed, ensuring the stability of the disc workpiece 9 during the subsequent stamping and drilling process; start the negative pressure fan 20 to suck out the air in the dust collection box 19 to form a negative pressure, and the dust generated by the external drilling enters the dust collection head, the dust suction hollow pipe 17 and the connecting pipe 18 and then enters the dust collection box 19, and the dust in the air is filtered and intercepted by the dust-proof net to realize the collection of dust.

[0037] By setting the downward movement of the hydraulic rod, the utility model can make the clamping plates on both sides move relatively, realizing the limiting and fixing of the workpiece, and solving the problem that in the prior art, the staff needs to hold the disc workpiece by hand and place it on the punching machine for stamping and drilling. During the process of the staff holding the plate by hand, the stability is poor, resulting in changes in stamping and drilling, and the stamping pressure is extremely easy to bounce out the parts, causing safety problems to the personnel.

[0038] The above are only the embodiments of the utility model, and do not limit the patent scope of the utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the utility model, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the utility model by the same token.

Claims

1. A workpiece positioning device, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a U-shaped plate (2), the inner top of the U-shaped plate (2) is fixedly connected to a hydraulic rod (3), the output end of the hydraulic rod (3) is fixedly connected to a lifting plate (4), the bottom of the lifting plate (4) is fixedly connected to a stamping die (5), the bottom of the lifting plate (4) is fixedly connected to two symmetrically arranged fixed rods (6), the top of the workbench (1) is fixedly connected to two support rods (7), the two support rods (7) are fixedly connected to a ring body (8), a disc workpiece (9) is placed on the top of the ring body (8), the inner wall of the U-shaped plate (2) is fixedly connected to two symmetrically arranged hollow columns (10), each of the hollow columns (10) is provided with a clamping mechanism, and the lifting plate (4) is provided with a dust removal mechanism; The clamping mechanism comprises a sliding column (13) penetrating the hollow column (10) and slidably connected thereto; one end of the sliding column (13) close to the U-shaped plate (2) is fixedly connected to a limit block (12); the limit block (12) is located in the hollow column (10) and slidably connected thereto; a tension spring (11) is fixedly connected to the side wall of the limit block (12); the tension spring (11) is fixedly connected to the inner wall of the hollow column (10) to provide a pulling force for the sliding column (13) to move away from the disc workpiece (9); and one end of the sliding column (13) away from the limit block (12) is fixedly connected to a clamping plate (15).

2. A workpiece positioning device according to claim 1, characterized in that: A wedge block is fixedly connected to the fixed rod (6), and a wedge groove (14) is formed through the sliding column (13), wherein the wedge groove (14) cooperates with the wedge block.

3. A workpiece positioning device according to claim 1, characterized in that: A sliding groove is provided in the hollow column (10), and the limit block (12) is located in the sliding groove and is slidably connected to the inner wall thereof.

4. A workpiece positioning device according to claim 1, characterized in that: The bottom of the punching die (5) is arranged in a conical shape.

5. A workpiece positioning device according to claim 1, characterized in that: The two clamping plates (15) are provided at opposite ends with limiting grooves (16) that match the disc workpiece (9).

6. A workpiece positioning device according to claim 5, characterized in that: The inner wall of the limiting groove (16) matches the outer wall of the disc workpiece (9).

7. A workpiece positioning device according to claim 1, characterized in that: The dust removal mechanism comprises a dust collection hollow tube (17) fixedly connected to the bottom of the lifting plate (4); a plurality of dust collection heads at equal intervals are installed at the bottom of the dust collection hollow tube (17); the dust collection hollow tube (17) is fixedly connected to a connecting tube (18) in communication with the tube; the connecting tube (18) penetrates the lifting plate (4); a dust collection box (19) and a negative pressure fan (20) are fixedly connected to the top of the lifting plate (4); the connecting tube (18) is fixedly connected to the side wall of the dust collection box (19); the dust collection box (19) is in communication with the negative pressure fan (20); and a dustproof net is fixedly connected inside the negative pressure fan (20).

8. A punching machine, characterized in that: It comprises a workpiece positioning device as described in any one of claims 1 to 7.

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