Punching die

Abstract

The utility model relates to a punching die which comprises a die holder, a female die and a cushion block, the die holder comprises a first die plate, a second die plate, a bearing seat and a cutter set, the second die plate and the first die plate are oppositely arranged, the bearing seat is arranged on the side, close to the first die plate, of the second die plate, and the cutter set comprises at least two cutters. The cutter group is arranged on one side, close to the second template, of the first template; the female die is arranged on the bearing seat and provided with stamping holes corresponding to the cutters. And the cushion block is rotatably arranged on the second template. The cushion block plays a role in supporting the female die, the bending strength of the female die is improved, and the female die is prevented from being bent.

Description

Technical Field

[0001] The utility model relates to the technical field of forming and punching equipment, in particular to a punching die. Background Art

[0002] In mechanical processing, it is often necessary to open holes or grooves in the side walls of metal pipes. Using punching dies for punching can improve productivity, and the product quality is stable and safe.

[0003] In the related prior art, when punching a rectangular tube, the rectangular tube is usually placed on a die, and the punching is performed on the rectangular tube as the cutter moves in the vertical direction.

[0004] However, the die is cantilevered, and because the punching pressure is high and close to the cantilever bending limit, it is very easy to cause the die to bend or be damaged. Utility Model Content

[0005] Based on the above description, the utility model provides a punching die, which aims to solve the problem that the existing cantilever die is easily bent or damaged when the punching pressure is high.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A punching die, comprising:

[0008] A mold base, comprising a first mold plate, a second mold plate, a bearing seat and a tool set, wherein the second mold plate is arranged opposite to the first mold plate, the bearing seat is arranged on a side of the second mold plate close to the first mold plate, the tool set comprises at least two tools, and the tool set is arranged on a side of the first mold plate close to the second mold plate;

[0009] A concave die is arranged on the bearing seat, and the concave die has a punching hole corresponding to the tool;

[0010] The cushion block is rotatably arranged on the second template.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, the mold base includes at least one pair of guide pillars, each of which is connected to the first mold plate and the second mold plate.

[0013] Furthermore, a paddle is provided on the cushion block.

[0014] Furthermore, it comprises an auxiliary pad, which can be inserted between the die and the workpiece.

[0015] Furthermore, it includes a clamp, which is arranged on the second template, and the clamp includes a shell, a driving assembly, two connecting plates and two clamping plates. The driving assembly is arranged in the shell, and the two connecting plates are connected to the driving assembly. The two connecting plates are symmetrical about the central bearing axis of the die, and the clamping plates are arranged on the connecting plates one by one.

[0016] Furthermore, the driving assembly includes a driving part, a bidirectional screw and two nut seats, one end of the bidirectional screw is connected to the output end of the driving part, and the nut seats are connected to the threaded sections of the bidirectional screw in a one-to-one correspondence.

[0017] Furthermore, the clamp includes at least one pair of sliding assemblies, each pair of sliding assemblies is axially symmetrical about the central axis of the shell, the sliding assembly includes a guiding part and a sliding part, the guiding part is arranged on the shell, the sliding part is arranged on the connecting plate, and the sliding part slidably cooperates with the guiding part.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] (1) The pad of the present application supports the die, thereby improving the bending strength of the die and preventing the die from bending.

[0020] (2) The present application uses an auxiliary pad to store waste materials, thereby preventing the waste materials from falling into the holes on the opposite side of the workpiece, and preventing the waste materials from getting stuck in the workpiece when the workpiece is taken out of the die.

[0021] (3) The present application clamps the workpiece by a fixture to ensure the stability of the workpiece, so that the accuracy of the hole of the workpiece is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a general assembly diagram of a punching die provided in an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the clamp in the embodiment of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 10. Die base; 11. First die plate; 12. Second die plate; 13. Bearing seat; 14. Cutting tool; 15. Guide column;

[0026] 20. Concave die;

[0027] 30. Pad; 31. Pick;

[0028] 40. Auxiliary pad;

[0029] 50. Clamp; 51. Shell; 52. Drive assembly; 521. Drive unit; 522. Bidirectional screw rod; 523. Nut seat; 53. Connecting plate; 54. Clamp; 55. Sliding assembly; 551. Guide unit; 552. Sliding unit. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0033] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0034] Refer to the attached Figure 1As shown, the utility model provides a technical solution: a punching die, including a die base 10, a die 20 and a cushion block 30, the die base 10 includes a first template 11, a second template 12, a bearing seat 13 and a tool group, the second template 12 is arranged opposite to the first template 11, the bearing seat 13 is arranged on the side of the second template 12 close to the first template 11, the tool group includes at least two tools 14, and the tool group is arranged on the side of the first template 11 close to the second template 12; the die 20 is arranged on the bearing seat 13, and the die 20 opens a punching hole corresponding to each tool 14 (not marked in the figure); the cushion block 30 is rotatably arranged on the second template 12.

[0035] Exemplarily, there may be two or more tool sets, the die 20 and the cushion block 30. When there are two or more tool sets, the die 20 and the cushion block 30, the tool sets, the die 20 and the cushion block 30 correspond to each other one by one.

[0036] According to this embodiment, after the workpiece is placed on the die 20, the cushion block 30 is pushed to rotate to the bottom of the die 20. When the cutter 14 punches the workpiece, the cushion block 30 supports the die 20. This can improve the bending strength of the die 20 and prevent the die 20 from bending.

[0037] Refer to the attached Figure 1 As shown, in some embodiments, the mold base 10 includes at least one pair of guide posts 15 , each guide post 15 being connected to the first mold plate 11 and the second mold plate 12 .

[0038] According to this embodiment, the guide pillar 15 can ensure the stability of the movement of the first template 11 and ensure the punching quality of the workpiece.

[0039] Refer to the attached Figure 1 As shown, in some embodiments, a paddle 31 is provided on the pad 30 .

[0040] According to this embodiment, force can be applied to the cushion block 30 through the paddle 31, which provides convenience for the staff.

[0041] Refer to the attached Figure 1 As shown, in some embodiments, an auxiliary pad 40 is included, and the auxiliary pad 40 can be inserted between the die 20 and the workpiece.

[0042] According to this embodiment, after the workpiece is placed on the die 20, the auxiliary pad 40 is inserted between the lower surface of the die 20 and the workpiece. When punching, the waste generated by the workpiece will fall on the auxiliary pad 40, preventing the waste from falling into the hole on the opposite side of the workpiece. After the punching is completed, the workpiece and the auxiliary pad 40 are taken out together.

[0043] Refer to the attached Figure 2As shown, in some embodiments, a clamp 50 is included, and the clamp 50 is arranged on the second template 12. The clamp 50 includes a shell 51, a driving assembly 52, two connecting plates 53 and two clamping plates 54. The driving assembly 52 is arranged in the shell 51, and the two connecting plates 53 are connected to the driving assembly 52. ​​The two connecting plates 53 are symmetrical about the central bearing axis of the die 20, and the clamping plates 54 are arranged on the connecting plates 53 one by one.

[0044] Exemplarily, the driving assembly 52 may be two linear driving parts 521 , and the two linear driving parts 521 correspond to the connecting plate 53 one by one; for example, the linear driving part 521 may be a cylinder, a hydraulic cylinder, an electric cylinder or an electric push rod.

[0045] According to this embodiment, after the workpiece is placed on the die 20, the driving assembly 52 drives the connecting plate 53 to move toward the die 20. The workpiece can be clamped by the two clamping plates 54. Thus, the stability of the workpiece is ensured, so that the accuracy of the hole of the workpiece is guaranteed.

[0046] Refer to the attached Figure 2 As shown, in some embodiments, the driving assembly 52 includes a driving portion 521, a bidirectional screw rod 522 and two nut seats 523, one end of the bidirectional screw rod 522 is connected to the output end of the driving portion 521, and the nut seats 523 are connected to the threaded sections of the bidirectional screw rod 522 one by one.

[0047] Exemplarily, the driving part 521 may be a stepping motor, a reduction motor, a servo motor, etc., and the driving part 521 may also be a crank.

[0048] According to this embodiment, the driving part 521 drives the bidirectional screw rod 522 to rotate, so that the nut seat 523 can move toward the die 20 or away from the die 20 to achieve clamping or loosening of the workpiece.

[0049] Refer to the attached Figure 2 As shown, in some embodiments, the clamp 50 includes at least one pair of sliding assemblies 55, each pair of sliding assemblies 55 is axially symmetrical about the central axis of the shell 51, and the sliding assembly 55 includes a guide portion 551 and a sliding portion 552, the guide portion 551 is disposed on the shell 51, and the sliding portion 552 is disposed on the connecting plate 53, and the sliding portion 552 slidably cooperates with the guide portion 551.

[0050] Exemplarily, the guide portion 551 may be a guide rail, an optical axis, or a slide groove, etc., and the sliding portion 552 may be a slider, a linear bearing, or a sliding protrusion, etc. When the guide portion 551 is a guide rail, the sliding portion 552 is a slider; when the guide portion 551 is an optical axis, the sliding portion 552 is a linear bearing; when the guide portion 551 is a slide groove, the sliding portion 552 is a sliding protrusion.

[0051] According to this embodiment, the sliding assembly 55 can both ensure the stability of the movement of the connecting plate 53 and prevent the connecting plate 53 from having friction resistance.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A punching die, characterized in that: include: A mold base (10) comprises a first mold plate (11), a second mold plate (12), a bearing seat (13) and a tool set, wherein the second mold plate (12) is arranged opposite to the first mold plate (11), the bearing seat (13) is arranged on a side of the second mold plate (12) close to the first mold plate (11), and the tool set comprises at least two tools (14), and the tool set is arranged on a side of the first mold plate (11) close to the second mold plate (12); A concave die (20) is arranged on the bearing seat (13), and a punching hole is formed in the concave die (20) corresponding to each of the cutting tools (14); A cushion block (30) is rotatably arranged on the second template (12).

2. A punching die according to claim 1, characterized in that: The mold base (10) comprises at least one pair of guide pillars (15), each guide pillar (15) being connected to the first mold plate (11) and the second mold plate (12).

3. A punching die according to claim 1, characterized in that: The cushion block (30) is provided with a paddle (31).

4. A punching die according to claim 1, characterized in that: It comprises an auxiliary pad (40), and the auxiliary pad (40) can be inserted between the die (20) and the workpiece.

5. A punching die according to any one of claims 1 to 4, characterized in that: The invention comprises a clamp (50), wherein the clamp (50) is arranged on the second template (12), and the clamp (50) comprises a shell (51), a driving assembly (52), two connecting plates (53) and two clamping plates (54). The driving assembly (52) is arranged in the shell (51), and the two connecting plates (53) are connected to the driving assembly (52). The two connecting plates (53) are symmetrical about the central bearing axis of the die (20), and the clamping plates (54) are arranged on the connecting plates (53) in a one-to-one correspondence.

6. A punching die according to claim 5, characterized in that: The driving assembly (52) comprises a driving part (521), a bidirectional screw rod (522) and two nut seats (523), one end of the bidirectional screw rod (522) is connected to the output end of the driving part (521), and the nut seats (523) are connected to the threaded sections of the bidirectional screw rod (522) in a one-to-one correspondence.

7. A punching die according to claim 6, characterized in that: The clamp (50) includes at least one pair of sliding assemblies (55), each pair of the sliding assemblies (55) is axially symmetrical about the central axis of the shell (51), and the sliding assembly (55) includes a guiding portion (551) and a sliding portion (552), the guiding portion (551) is arranged on the shell (51), and the sliding portion (552) is arranged on the connecting plate (53), and the sliding portion (552) is slidably matched with the guiding portion (551).

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