Reusable fine blanking punch structure

Abstract

The utility model relates to the technical field of stamping dies, and discloses a reusable fine blanking punch structure which comprises a fixing frame, a base is connected to the outer side of the bottom of the fixing frame in a sleeved mode, and a locking block is arranged on one side of the fixing frame. A containing groove is formed in the fixing frame, a blanking punch body and an insert are installed on the inner side of the containing groove, the top of the blanking punch body is connected with a cushion block located on the inner side of the containing groove, and the top of the cushion block is connected with a gasket used for adjusting the extending length of the blanking punch body. The exposed length of the bottom of the blanking punch main body can be adjusted by unscrewing the third bolt and increasing the thickness of the gasket, so that the exposed length is kept constant, the adjustment mode is simple and easy, the whole blanking punch main body does not need to be replaced, the maintenance cost is reduced, the production efficiency is improved, adjustment and maintenance are accurate, the service life of the blanking punch main body can be prolonged, and the production cost is reduced. And the replacement frequency caused by abrasion is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a reusable small blanking punch structure. Background Art

[0002] The punch of the stamping die, also known as the punch or punch, is an important part of the stamping die. The punch is located at the upper part of the die, and its main function is to press down and position the workpiece to ensure the smooth progress of the stamping process. During the stamping process, the punch needs to withstand great extrusion force and wear, so it is usually made of wear-resistant and high-strength materials such as high-speed steel or cemented carbide.

[0003] Some small punches in existing stamping dies, especially those with a wall thickness or diameter less than 0.5MM, are very easy to wear or damage during the stamping process. Traditional small punches can only be used 1-2 times and cannot be repeatedly maintained and reused. The cost of the mold and the product is too high. Therefore, a reusable small blanking punch structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a reusable small blanking punch structure to solve the problem that some small punches of the existing stamping dies proposed in the above background technology, especially the punches with a wall thickness or diameter less than 0.5MM, are very easy to wear or damage during the stamping process, the traditional small punches can only be used 1-2 times, cannot be repeatedly maintained and reused, and the mold and product costs are too high.

[0005] To achieve the above object, the utility model provides the following technical solution: a reusable small blanking punch structure, comprising a fixing frame, a base is sleeved on the outer side of the bottom of the fixing frame, and a locking block is arranged on one side of the fixing frame;

[0006] A placement slot is provided inside the fixing frame, a blanking punch body and an insert are installed inside the placement slot, a pad located inside the placement slot is connected to the top of the blanking punch body, and a gasket for adjusting the extension length of the blanking punch body is connected to the top of the pad;

[0007] One side of the base is respectively connected with two second bolts and two positioning pins, and one side of the fixing frame is provided with a limiting groove and three first threaded holes.

[0008] Preferably, the first threaded hole has a third bolt threadedly connected to its inner side, and one end of the third bolt abuts against one side of the insert.

[0009] Preferably, as mentioned above: one side of the insert is attached to one side of the blanking punch body, and one end of the bottom of the blanking punch body passes through one side of the base.

[0010] Preferably, as mentioned above: a limiting block is integrally formed on one side of the bottom of the locking block, and the outer side of the limiting block is inserted into the inner side of the limiting groove.

[0011] Preferably, as mentioned above: a second threaded hole is opened on one side of the top of the locking block, and a first bolt is threadedly connected to the inner side of the second threaded hole.

[0012] Preferably, the gap between the placement groove and the blanking punch body is 0.002-0.004 mm.

[0013] Preferably, the gap between the placement groove and the insert is 0.004-0.006 mm.

[0014] Compared with the prior art, the utility model adopts the above technical scheme and has the following technical effects: when the blanking punch body is worn during the stamping process, the utility model can adjust the leakage length at the bottom of the blanking punch body by loosening the third bolt and increasing the thickness of the gasket to keep it constant. The adjustment method is simple and easy, and there is no need to replace the entire blanking punch body, which reduces maintenance costs and improves production efficiency. Accurate adjustment and maintenance can extend the service life of the blanking punch body and reduce the replacement frequency caused by wear, further reducing production costs. The maintenance process is simple and convenient, and the adjustment and maintenance of the blanking punch body can be completed quickly, reducing production interruption time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 5 It is a left-side structural schematic diagram of the utility model;

[0021] Figure 6 It is a right side structural schematic diagram of the utility model.

[0022] Explanation of the accompanying drawings: 1. fixing frame; 2. gasket; 3. first bolt; 4. locking block; 5. second bolt; 6. base; 7. first threaded hole; 8. positioning pin; 9. third bolt; 10. second threaded hole; 11. limiting groove; 12. limiting block; 13. blanking punch body; 14. gasket; 15. placement groove; 16. insert. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0025] Example

[0026] In the prior art, some small punches in existing stamping dies, especially those with a wall thickness or diameter less than 0.5MM, are very easy to wear or damage during the stamping process. Traditional small punches can only be used 1-2 times and cannot be repeatedly maintained and reused, resulting in the problem of excessively high mold and product costs.

[0027] See also Figure 1-6 The utility model provides a technical solution: a reusable small blanking punch structure, including a fixing frame 1, a base 6 is sleeved on the outer side of the bottom of the fixing frame 1, the base 6 is installed on one side of the stripping plate of the stamping die, and is fixed by a positioning pin 8, and finally the base 6 is fixed to the stripping plate of the stamping die by a second bolt 5, a locking block 4 is provided on one side of the fixing frame 1, a second threaded hole 10 is opened on one side of the top of the locking block 4, and the first bolt 3 is connected to one side of the back plate of the stamping die clamping plate by a first bolt 3, and the first bolt 3 is threadedly connected to the inner side of the second threaded hole 10;

[0028] In order to facilitate maintenance of the blanking punch body 13, a placement groove 15 is opened inside the fixing frame 1, and the blanking punch body 13 and the insert 16 are installed inside the placement groove 15. The top of the blanking punch body 13 is connected with a cushion block 14 located inside the placement groove 15. Three third bolts 9 are inserted into the inside of the first threaded hole 7 so that one end of the third bolt 9 abuts against one side of the insert 16. When the insert 16 abuts against one side of the blanking punch body 13, the blanking punch body 13 is clamped and fixed inside the fixing frame 1. The top of the cushion block 14 is connected with a gasket 2 for adjusting the extension length of the blanking punch body 13.

[0029] In order to facilitate the installation of the base 6, two second bolts 5 and two positioning pins 8 are respectively connected to one side of the base 6, and the limiting block 12 on one side of the locking block 4 is used to clamp the inner side of the limiting groove 11, and the first bolt 3 is used to connect to one side of the back plate of the stamping die clamp. At this time, the base 6 is installed on one side of the stripping plate of the stamping die, and the positioning pin 8 is used to fix it. Finally, the second bolt 5 is used to fix the base 6 to the stripping plate of the stamping die. A limiting groove 11 and three first threaded holes 7 are provided on one side of the fixing frame 1, and the inner side of the first threaded hole 7 is threadedly connected with a third bolt 9;

[0030] In order to facilitate the rough guiding of the blanking punch body 13, one end of the third bolt 9 abuts against one side of the insert 16, and one side of the insert 16 fits against one side of the blanking punch body 13. The bottom end of the blanking punch body 13 passes through one side of the base 6. The base 6 is installed in the stripping plate, and the bottom of the stripping plate is milled out of the avoidance position. A limiting block 12 is integrally formed on one side of the bottom of the locking block 4, and the outer side of the limiting block 12 is inserted into the inner side of the limiting groove 11. At the same time, the cooperation between the base 6 and the blanking punch body 13 plays a role in protecting the blanking punch body 13 and rough guiding.

[0031] The gap between the placement groove 15 and the blanking punch body 13 is 0.003 mm, and the gap between the placement groove 15 and the insert 16 is 0.005 mm.

[0032] Working principle: When the stamping die is assembling the parts, the blanking punch body 13 and the insert 16 are inserted into the inner side of the fixing frame 1, and the insert 16 is used to clamp one side of the blanking punch body 13. Then, the cushion block 14 and the gasket 2 are installed into the inner side of the placement groove 15, so that the top of the gasket 2 is flush with the fixing frame 1, and three third bolts 9 are inserted into the inner side of the first threaded hole 7, so that one end of the third bolt 9 abuts against one side of the insert 16. When the insert 16 abuts against one side of the blanking punch body 13, the blanking punch body 13 is clamped and fixed on the inner side of the fixing frame 1;

[0033] Then, the limiting block 12 on one side of the locking block 4 is used to clamp the inner side of the limiting groove 11, and the first bolt 3 is used to connect to one side of the back plate of the stamping die clamping plate. At this time, the base 6 is installed into one side of the stripping plate of the stamping die, and is fixed with the positioning pin 8, and finally the second bolt 5 is used to fix the base 6 to the stripping plate of the stamping die;

[0034] When the fixed frame 1 drives the blanking punch body 13 to move and complete the stamping of the parts, the gap between the clamping plate cavity of the stamping die and the fixed frame 1 is 0.002 mm. The smaller gap can ensure the precise guiding effect of the fixed frame 1. At the same time, the base 6 is loaded with the stripper plate, and the bottom of the stripper plate is milled out of the avoidance position. At the same time, the gap between the base 6 and the blanking punch body 13 is 0.005 mm, which plays a role in protecting the blanking punch body 13 and rough guiding.

[0035] The bottom of the blanking punch body 13 can leak out 1 mm from the bottom of the base 6. At the same time, the leaking length of the blanking punch body 13 can be different according to different products. When the blanking punch body 13 is worn when punching the parts, loosen the three third bolts 9 on one side so that one end of the third bolt 9 leaves one side of the insert 16, and increase the thickness of the gasket 2 at the top of the cushion block 14. At this time, the length of the wear of the bottom end of the blanking punch body 13 is increased by the thickness of the gasket 2, so that the length of the bottom of the blanking punch body 13 leaking out of the base 6 remains unchanged. At this time, the blanking punch body 13 with a small size can be repeatedly maintained and used by adding the gasket 2 after being worn. By disassembling and assembling the third bolt 9, the blanking punch body 13 can be quickly maintained, which makes the maintenance of the blanking punch body 13 simpler and more convenient, reduces the maintenance frequency of the blanking punch body 13, reduces the maintenance cost, improves the production efficiency, and can also effectively ensure the stability of production.

[0036] In summary, when the blanking punch body 13 is worn during the stamping process, the leakage length at the bottom of the blanking punch body 13 can be adjusted by loosening the third bolt 9 and increasing the thickness of the gasket 2 to keep it constant. The adjustment method is simple and easy, and there is no need to replace the entire blanking punch body 13, which reduces maintenance costs and improves production efficiency. Precise adjustment and maintenance can extend the service life of the blanking punch body 13 and reduce the replacement frequency caused by wear, further reducing production costs. The maintenance process is simple and convenient, and the adjustment and maintenance of the blanking punch body 13 can be completed quickly, reducing production interruption time and improving production efficiency.

[0037] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A reusable small blanking punch structure, comprising a fixing frame (1), characterized in that: A base (6) is sleeved on the outer side of the bottom of the fixing frame (1), and a locking block (4) is provided on one side of the fixing frame (1); The fixing frame (1) is provided with a placement groove (15) inside, a blanking punch body (13) and an insert (16) are installed inside the placement groove (15), a cushion block (14) located inside the placement groove (15) is connected to the top of the blanking punch body (13), and a gasket (2) for adjusting the extension length of the blanking punch body (13) is connected to the top of the cushion block (14); One side of the base (6) is respectively connected with two second bolts (5) and two positioning pins (8), and one side of the fixing frame (1) is provided with a limiting groove (11) and three first threaded holes (7).

2. The reusable small blanking punch structure according to claim 1 is characterized in that: A third bolt (9) is threadedly connected to the inner side of the first threaded hole (7), and one end of the third bolt (9) abuts against one side of the insert (16).

3. The reusable small blanking punch structure according to claim 2 is characterized in that: One side of the insert (16) is attached to one side of the blanking punch body (13), and one end of the bottom of the blanking punch body (13) penetrates one side of the base (6).

4. The reusable small blanking punch structure according to claim 3 is characterized in that: A limiting block (12) is integrally formed on one side of the bottom of the locking block (4), and the outer side of the limiting block (12) is inserted into the inner side of the limiting groove (11).

5. The reusable small blanking punch structure according to claim 4 is characterized in that: A second threaded hole (10) is provided on one side of the top of the locking block (4), and a first bolt (3) is threadedly connected to the inner side of the second threaded hole (10).

6. The reusable small blanking punch structure according to claim 5 is characterized in that: The gap between the placement groove (15) and the blanking punch body (13) is 0.002-0.004 mm.

7. The reusable small blanking punch structure according to claim 6 is characterized in that: The gap between the placement groove (15) and the insert (16) is 0.004-0.006 mm.

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