Precision die with chip breaker

Abstract

The utility model discloses a precision blanking die with chip breaking groove relates to die technical field, including lower mould and the upper mould of setting in the top of lower mould, the bottom of upper mould is equipped with male module respectively, the top of lower mould is provided with female module, the number of female module is two, the utility model discloses the top of lower mould is set up with the groove body, and the inside design of groove body has two -way screw rod, when rotating two -way screw rod, can adjust the distance between two female modules, make the female on lower mould can be applicable to the U type right -angle workpiece of same shape different width, again cooperation connecting block top installation has the convex post rotationally connected with female groove, can make female module be at the top of lower mould rotation surface change, make it from the right -angle face change into the inclined plane, be used for processing V type workpiece, need not to change the female module of lower mould upper mould, just need to change the male module of upper mould, reduce the cost required when workpiece processing.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a precision punching mold with chip breaking grooves. Background Technology

[0002] A punching die is a special process equipment used in cold stamping to process materials into parts. It is called a cold stamping die or a stamping die.

[0003] Currently, traditional punching dies still have certain problems in use. For example, the structure of a traditional punching die consists of an upper die and a lower die. When the workpiece is placed between the upper and lower dies, the upper die moves to the lower die. The punch on the upper die works with the die on the lower die to punch the workpiece and form it into the specified shape. The punch on the upper die and the die on the lower die have fixed structures, and can generally only process workpieces of specified shapes and sizes. When it is necessary to process workpieces of the same shape but different sizes, such as processing U-shaped right-angle workpieces of different widths, or processing workpieces of other shapes, such as replacing U-shaped right-angle workpieces with V-shaped workpieces, it is necessary to replace both the punch on the upper die and the die on the lower die, which results in a high cost. Utility Model Content

[0004] The purpose of this invention is to provide a precision punching die with a chip breaking groove to solve the problems mentioned in the background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: including a lower mold and an upper mold disposed on the top of the lower mold, wherein the bottom of the upper mold is respectively equipped with a convex module, and the top of the lower mold is provided with a concave module, and the number of the concave modules is two;

[0006] The concave module has an inclined surface, the top of the lower mold has a groove, the inside of the groove has a bidirectional threaded rod, the surface of the bidirectional threaded rod is symmetrically threaded with connecting blocks, the top of the connecting blocks is fixedly connected with a protruding post, and the bottom of the concave module has a groove that is rotatably connected to the protruding post.

[0007] In a further embodiment, the front and back sides of the lower mold are symmetrically fixedly connected with first fixing blocks, the top of the first fixing blocks is fixedly connected with guide rods, and the surface of the guide rods is slidably connected with second fixing blocks that are fixedly connected to the upper mold.

[0008] In a further embodiment, the front of the recessed module is threadedly connected to a limiting bolt, one end of which penetrates into the interior of the recess and is threadedly connected to the protruding post.

[0009] In a further embodiment, the surface of the connecting block is symmetrically fitted with sliders, and the interior of the groove is provided with a sliding groove that is slidably connected to the sliders.

[0010] In a further embodiment, mounting grooves are symmetrically provided between the two recessed modules and at the top of the lower mold. A top block is slidably connected inside the mounting groove, and a return spring is assembled between the top block and the mounting groove.

[0011] In a further embodiment, the top of the upper die is fitted with a punching block, the top of the lower die is provided with a cutting groove, and the front of the lower die is provided with a chip removal groove communicating with the cutting groove.

[0012] In a further embodiment, the bottom of the concave module is provided with an annular limiting groove, and the top of the lower mold is equipped with a limiting block that is slidably connected to the annular limiting groove.

[0013] In a further embodiment, the top of the upper module is fixedly connected to a mounting base for use with external hydraulic equipment.

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

[0015] This invention features a groove on the top of the lower die, with a bidirectional threaded rod inside. Rotating the bidirectional threaded rod adjusts the distance between the two concave modules, allowing the lower die to accommodate U-shaped right-angle workpieces of the same shape but different widths. Furthermore, a protrusion mounted on the top of the connecting block, rotatably connected to the groove, allows the concave module to rotate and change its surface from a right-angled surface to an inclined surface for processing V-shaped workpieces. This eliminates the need to replace the concave modules of the upper die; only the protruding module of the upper die needs to be replaced, reducing the cost of workpiece processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a partial exploded view of an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the concave module structure according to an embodiment of the present utility model.

[0019] In the diagram: 1. Lower mold; 2. Upper mold; 3. convex module; 4. concave module; 5. inclined surface; 6. groove; 7. bidirectional threaded rod; 8. connecting block; 9. protruding post; 10. groove; 11. first fixing block; 12. guide rod; 13. second fixing block; 14. limit bolt; 15. slider; 16. slide groove; 17. mounting groove; 18. top block; 19. return spring; 20. punching block; 21. cutting groove; 22. chip removal groove; 23. annular limit groove; 24. limit block; 25. mounting base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This embodiment discloses a precision punching die with chip-breaking grooves, including a lower die 1 and an upper die 2 disposed on top of the lower die 1. The bottom of the upper die 2 is respectively equipped with protruding modules 3, and the top of the lower die 1 is provided with two concave modules 4. The top of the upper die 2 is fixedly connected to a mounting base 25 for use with external hydraulic equipment. Figure 1 and Figure 2 As shown in this application, the mounting base 25 is designed on the top of the upper mold 2 for fixing the upper mold 2 to the output end of the external hydraulic equipment. The convex module 3 is installed at the bottom of the upper mold 2, preferably fixed with bolts to improve the stability of the fixation and facilitate subsequent replacement and disassembly. The convex module 3 is used to contact the workpiece when the upper mold 2 is pressed down, and to generate pressure on the workpiece. There are two concave modules 4. The concave modules 4 are installed on the top of the lower mold 1 to support the workpiece and cooperate with the convex module 3 to facilitate the pressing and forming of the workpiece.

[0022] Furthermore, the front and back sides of the lower die 1 are symmetrically fixedly connected with first fixing blocks 11. A guide rod 12 is fixedly connected to the top of the first fixing block 11. A second fixing block 13, fixedly connected to the upper die 2, is slidably connected to the surface of the guide rod 12. A mounting groove 17 is symmetrically opened between the two recessed modules 4 and at the top of the lower die 1. A top block 18 is slidably connected inside the mounting groove 17. A return spring 19 is installed between the top block 18 and the mounting groove 17. A punching block 20 is installed at the top of the upper die 2. A cutting groove 21 is opened at the top of the lower die 1. A chip removal groove 22 communicating with the cutting groove 21 is opened on the front side of the lower die 1. Figure 1 and Figure 2As shown in this application, the first fixing block 11 and the second fixing block 13 are respectively fixed on the surfaces of the lower mold 1 and the upper mold 2. The guide rod 12 is welded to the first fixing block 11 and is slidably connected to the second fixing block 13. This allows the upper mold 2 to be limited when it is pressed down, thus preventing positional deviation. The top block 18 is designed inside the top mounting groove 17 of the lower mold 1. The return spring 19 is designed between the top block 18 and the mounting groove 17. It is preferred to use a snap-fit ​​device for snap-fit. The return spring 19 can provide an upward elastic force to the top block 18. When the workpiece is pressed and formed, it can push out the formed workpiece. The punching block 20 is installed on the top of the upper mold 2. When the upper mold 2 moves down, it can drive the punching block 20 to move downward. With the use of the cutting groove 21, the workpiece can be cut. The waste chips after cutting fall into the chip dropping groove 22 and slide out of the lower mold 1 through the slope of the chip dropping groove 22, thus preventing the accumulation of waste chips.

[0023] More specifically, the concave module 4 has an inclined surface 5, the top of the lower mold 1 has a groove 6, and a bidirectional threaded rod 7 rotates inside the groove 6. A connecting block 8 is symmetrically threaded onto the surface of the bidirectional threaded rod 7. A protruding post 9 is fixedly connected to the top of the connecting block 8. The bottom of the concave module 4 has a groove 10 that rotatably connects to the protruding post 9. Figure 1 , Figure 2 and Figure 3 As shown in this application, the groove 6 is located on the top of the lower mold 1. The bidirectional threaded rod 7 is rotatably connected to the inside of the groove 6 via a bearing. There are two connecting blocks 8, and both connecting blocks 8 are threadedly connected to the bidirectional threaded rod 7. The connecting blocks 8 are slidably connected to the groove 6 via the slider 15 and the slide groove 16. When the bidirectional threaded rod 7 is rotated, the distance between the two connecting blocks 8 can be adjusted. The protruding post 9 is installed on the top of the connecting block 8 and is rotatably connected to the groove 10 of the concave module 4. When the distance between the two connecting blocks 8 is adjusted, the concave module 4 on the two protruding posts 9 can be moved. The distance between the two concave modules 4 can be adjusted to allow the processing of U-shaped right-angle workpieces of different sizes but the same shape. When the convex module 3 of the upper mold 2 is replaced with the required size, only the distance between the two concave modules 4 needs to be adjusted, without the need for replacement. Furthermore, the convex post 9 and the groove 10 are rotatably connected, and the concave module 4 can rotate at the top of the convex post 9. When the two concave modules 4 are rotated so that the two inclined surfaces 5 are facing each other, the two concave modules 4 can process V-shaped workpieces. Only the convex module 3 of the upper mold 2 needs to be replaced, without the need to replace the concave module 4 of the lower mold 1, thus reducing costs.

[0024] Preferably, the front of the recessed module 4 is threadedly connected to a limiting bolt 14, one end of which penetrates into the interior of the groove 10 and is threadedly connected to the protrusion 9. The bottom of the recessed module 4 is provided with an annular limiting groove 23, and the top of the lower mold 1 is fitted with a limiting block 24 that slides in connection with the annular limiting groove 23. Figure 1 , Figure 2 and Figure 3 As shown, the limiting bolt 14 is designed between the protruding post 9 and the concave module 4. The limiting bolt 14 is screwed into the opening on one side of the concave module 4, passes through the opening of the protruding post 9 and goes through to the other side of the concave module 4, thereby limiting the rotation of the protruding post 9 and the concave module 4. The annular limiting groove 23 and the limiting block 24 are slidably connected, which can limit the rotation of the concave module 4 when it is rotating on the protruding post 9.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision punching die with chip breaking groove, comprising a lower die (1) and an upper die (2) disposed on top of the lower die (1), characterized in that: The bottom of the upper mold (2) is respectively equipped with a convex module (3), and the top of the lower mold (1) is provided with a concave module (4), and the number of the concave modules (4) is two. The concave module (4) has an inclined surface (5), the top of the lower mold (1) has a groove (6), the inside of the groove (6) has a bidirectional threaded rod (7), the surface of the bidirectional threaded rod (7) is symmetrically threaded with a connecting block (8), the top of the connecting block (8) is fixedly connected with a protruding post (9), and the bottom of the concave module (4) has a groove (10) that is rotatably connected to the protruding post (9).

2. The precision punching die with chip breaker groove according to claim 1, characterized in that: The lower mold (1) has a first fixing block (11) symmetrically fixedly connected to both the front and back sides. A guide rod (12) is fixedly connected to the top of the first fixing block (11). A second fixing block (13) is slidably connected to the surface of the guide rod (12) and fixedly connected to the upper mold (2).

3. The precision punching die with chip breaker groove according to claim 1, characterized in that: The front threaded connection of the recessed module (4) is a limiting bolt (14), one end of which penetrates into the interior of the groove (10) and is threadedly connected to the protrusion (9).

4. The precision punching die with chip breaker groove according to claim 1, characterized in that: The surface of the connecting block (8) is symmetrically fitted with sliders (15), and the inside of the groove (6) is provided with a sliding groove (16) that is slidably connected to the sliders (15).

5. The precision punching die with chip breaker groove according to claim 1, characterized in that: A mounting groove (17) is symmetrically provided between the two recessed modules (4) and at the top of the lower mold (1). A top block (18) is slidably connected inside the mounting groove (17). A reset spring (19) is assembled between the top block (18) and the mounting groove (17).

6. The precision punching die with chip breaker groove according to claim 1, characterized in that: The upper die (2) is fitted with a punching block (20) on its top, the lower die (1) is provided with a cutting groove (21) on its top, and the lower die (1) is provided with a chip removal groove (22) on its front side that communicates with the cutting groove (21).

7. The precision punching die with chip breaker groove according to claim 1, characterized in that: The bottom of the concave module (4) is provided with an annular limiting groove (23), and the top of the lower mold (1) is equipped with a limiting block (24) that is slidably connected to the annular limiting groove (23).

8. The precision punching die with chip breaker groove according to claim 1, characterized in that: The top of the upper mold (2) block is fixedly connected to a mounting base (25) for use with external hydraulic equipment.

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