CN219899751U - Bending stripping structure and stamping die - Google Patents
Bending stripping structure and stamping die Download PDFInfo
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- CN219899751U CN219899751U CN202321044126.XU CN202321044126U CN219899751U CN 219899751 U CN219899751 U CN 219899751U CN 202321044126 U CN202321044126 U CN 202321044126U CN 219899751 U CN219899751 U CN 219899751U
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- stamping
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- 238000005452 bending Methods 0.000 title claims abstract description 131
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Abstract
The utility model provides a bending and stripping structure and a stamping die, wherein the bending and stripping structure comprises a bending male die and a bending female die which can be combined with each other to jointly press and bend a plate into a stamping part, and further comprises a stripping block which is arranged at the bending edge of the bending male die, and the gap between the stripping block and the bending male die is smaller than the thickness of the plate; the limiting column is arranged on the bending female die in a penetrating manner and used for driving the stripping block to be far away from the bending female die when the die is assembled so as to avoid the bending edge of the stamping part; and the return structure is connected with the stripping block and is used for driving the stripping block to abut against the end surface of the bending edge of the stamping part during die opening so as to separate the stamping part which moves along with the bending male die. The automatic stripping operation of stamping parts without damage, stamping and deformation can be realized, and the yield and the production efficiency of products are improved.
Description
Technical Field
The utility model relates to the technical field of sheet metal dies, in particular to a bending and stripping structure and a stamping die.
Background
The bending stamping die is used for bending the workpiece, so that the workpiece can meet the use requirement. At present, a jacking pin structure is often adopted for stripping of a stamping bending die, and because the jacking pin is small in outer diameter specification and size, small in stress area and large in local stress, the phenomena of product deformation, embossing, twisting and the like are easily caused. Particularly, when long and thin products are punched, the reject ratio is high, a large amount of manpower is required for polishing, grinding and stamping, the labor cost is high, meanwhile, the polishing, grinding and stamping easily causes scrapping of the products, so that production is unsmooth, and the productivity is reduced.
Disclosure of Invention
The utility model aims to provide a bending stripping structure and a stamping die, which are used for solving the problems of high product reject ratio and low production efficiency of the existing stripping structure of a jacking pin.
In order to achieve the above object, according to one aspect of the present utility model, there is provided a bending and stripping structure, including a bending punch and a bending die capable of being combined with each other to jointly press and bend a sheet into a stamping part, further including:
the stripping block is arranged at the bending edge of the bending male die, and the gap between the stripping block and the bending male die is smaller than the thickness of the plate;
the limiting column is arranged on the bending female die in a penetrating manner and used for driving the stripping block to be far away from the bending female die when the die is assembled so as to avoid the bending edge of the stamping part;
and the return structure is connected with the stripping block and is used for driving the stripping block to abut against the end surface of the bending edge of the stamping part during die opening so as to separate the stamping part which moves along with the bending male die.
According to the utility model, the stripping is carried out through the stripping block arranged on the bending edge of the bending male die, and the stripping block is abutted against the end surface of the bending edge, so that the stamping part is slowly separated from the bending male die under the action of the return structure, and the phenomena of product deformation, stamping, distortion and the like are not easy to occur, thereby improving the product yield and ensuring the production efficiency.
Further, the bending stripping structure further comprises an upper die holder, the bending male die is arranged on the upper die holder, and the stripping block is connected with the upper die holder through the return structure.
Further, the return structure comprises a spring guide post and a first spring;
one end of the spring guide post is movably sleeved on the upper die holder, the other end of the spring guide post is connected with the stripping block, and the first spring is sleeved on the spring guide post and is positioned between the upper die holder and the stripping block.
Further, an upper base plate is further arranged between the upper die base and the bending male die, and a through hole for the return structure to pass through is formed in the upper base plate.
Further, a first stop block is further arranged on the upper die holder, and the stripping block is located between the bending male die and the first stop block. The stripping block is arranged on the outer side of the bending male die, and is limited by the first stop block, so that the motion stability of the stripping block can be ensured.
Further, the bending die further comprises a lower die holder, the bending die is arranged on the lower die holder, one end of the limiting column is connected to the lower die holder, and the other end of the limiting column extends out of the bending die.
Further, a lower base plate is further arranged between the lower die base and the bending female die, and a through hole for the limiting column to pass through is formed in the lower base plate.
Further, a lower stripper plate is further arranged on the lower base plate and used for bearing plates, and the lower stripper plate is located in the bending female die and connected with the lower die holder through an elastic structure. The lower stripper plate is used for bearing the plate material, so that the stamping stability can be improved.
Further, a second spring is arranged on the lower die holder, and the limiting column is connected with the lower die holder through the second spring. The arrangement of the second spring realizes the elastic contact between the limiting column and the stripping block, reduces the impact on the stripping block, and is beneficial to the slow stripping of the stripping block.
According to another aspect of the utility model, a stamping die is provided, which comprises the bending stripping structure.
According to the technical scheme, the bending stripping structure mainly comprises the bending male die and the bending female die which can be combined with each other to jointly bend a plate into a stamping part, a stripping block arranged on the bending edge of the bending male die, a return structure and a limit column, wherein the return structure and the limit column are used for driving the stripping block to move.
Meanwhile, the bending and stripping structure is compact in structure, easy to assemble, safe and reliable to use and convenient to implement, popularize and apply.
The stamping die for bending the plate material provided by the second aspect of the utility model has the effect of realizing the automatic stripping operation of the product without damage, stamping and deformation due to the bending stripping structure of the first aspect of the utility model, thereby improving the yield and the production efficiency of the product.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a schematic structural diagram of a bending and stripping structure in the embodiment, in which a mold is in a mold opening state;
fig. 2 is a schematic structural diagram II of a bending and stripping structure in the embodiment, where the mold is in a mold closing state;
wherein:
1-upper die; 2-lower die; 3-plate material; 4-stamping parts;
11-bending the male die; 12-stripping; 13-a return structure; 14-an upper die holder; 15-an upper backing plate; 16-a first stop; 21-bending the female die; 22-limiting columns; 23-a lower die holder; 24-a lower backing plate; 25-lower stripper plate; 26-a second spring; 27-a second stop; 131-spring guide posts; 132-first spring.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and embodiments, and it should be noted that the embodiments of the present utility model and features of the embodiments may be combined with each other without conflict.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The utility model provides a bending and stripping structure and a stamping die, aiming at solving the problems of high product reject ratio and low production efficiency of the existing bending and stamping die adopting a jacking pin stripping structure.
As shown in fig. 1 and 2, the bending stripping structure of the present embodiment is applied to a stamping die composed of an upper die 1 and a lower die 2, and specifically includes a bending punch 11 and a bending die 21 capable of merging each other and bending a plate 3 into a stamping part 4 together, the bending punch 11 is disposed in the upper die 1, the bending die 21 is disposed in the lower die 2, and further includes a stripping block 12 and a return structure 13 disposed in the upper die 1, and a limit post 22 disposed in the lower die 2, wherein the stripping block 12 is disposed at a bending edge of the bending punch 11, a gap between the stripping block 12 and the bending punch 11 is smaller than a thickness of the plate 3, the limit post 22 is disposed on the bending die 21 in a penetrating manner and corresponds to the stripping block 12 up and down, and is used for driving the stripping block 12 to be away from the bending die 21 so as to avoid a bending edge of the stamping part 4 when the die is closed, and the return structure 13 is connected with the stripping block 12 and is used for driving the stripping block 12 to abut against an end face of the bending edge of the stamping part 4 when the stamping part 11 moves so as to separate from the stamping part 4 following the bending punch 11.
By applying the technical scheme of the embodiment, the die operation gradually descends through the stamping stroke, the limit post 22 of the lower die 2 is in contact with the stripping block 12 of the upper die 1, the stamping stroke continues to descend, the limit post 22 starts to push the stripping block 12 upwards until the bending male die 11 and the bending female die 21 are completely closed, the sheet 3 is bent into the stamping part 4, in the process, the stripping block 12 moves upwards against the acting force of the return structure 13 so as to avoid the bending edge of the stamping part 4, the upper die and the lower die start to slowly separate along with the operation of the machine, the stamping part 4 moves upwards along with the bending male die 11, the stripping block 12 starts to move downwards under the action of the return structure 13, in the process, the stripping block 12 still is in contact with the limit post 22, that is, the limit post 22 can limit the movement amplitude of the stripping block 12, the stripping block 12 can only slowly abut against the end face of the bending edge of the stamping part 4, the stamping part 4 is slowly separated from the bending male die 11, and the stamping part 4 is free from damage, stamping and deformation.
Therefore, according to the bending stripping structure, the stripping block 12 is arranged at the bending edge of the bending male die 11, and the stamping part 4 is slowly separated from the bending male die 11 by utilizing the linkage of the return structure 13 and the limiting column 22, so that the phenomena of product deformation, stamping, distortion and the like are not easy to occur, the product yield is improved, and the production efficiency is ensured.
As shown in fig. 1 and 2, the upper die 1 further includes an upper die holder 14, an upper pad 15, and a first stop block 16, where the upper pad 15 and the first stop block 16 are respectively connected to the lower surface of the upper die holder 14, the bending punch 11 is connected to the lower surface of the upper pad 15, the stripping block 12 is located below the upper pad 15 and connected to the upper die holder 14 through a return structure 13, the upper pad 15 is provided with a through hole for the return structure 13 to pass through, and the stripping block 12 moves in a space enclosed by the bending punch 11, the upper pad 15, and the first stop block 16, so as to ensure the motion stability of the stripping block 12.
Alternatively, the clearance between the stripping block 12 and the bending punch 11 and the clearance between the stripping block 12 and the first stop block 16 are all 0.05mm, so that the stripping block 12 can stably bear against the end face of the bending edge of the stamping part 4.
As shown in fig. 1, the return structure 13 includes a spring guide post 131 and a first spring 132, one end of the spring guide post 131 is movably sleeved on the upper die holder 14, the other end passes through the upper pad 15 to be connected with the stripping block 12, and the first spring 132 is sleeved on the spring guide post 131 and is located between the upper die holder 14 and the stripping block 12.
In specific implementation, the upper die holder 14 is provided with a through hole with a small middle and large two ends, the diameter of the spring guide post 131 is matched with the small hole of the upper die holder 14, and the upper end of the spring guide post 131 is provided with a retainer ring, so that the spring guide post 131 is prevented from falling from the upper die holder 14, the diameter of the first spring 132 is matched with the large hole of the upper die holder 14, the through hole of the upper base plate 15 is matched with the large hole of the upper die holder 14, and the lower end of the spring guide post 131 is fixedly connected with the stripping block 12.
As shown in fig. 1 and 2, the lower die 2 further includes a lower die holder 23, a lower pad 24, and a second stop block 27, where the lower pad 24 and the second stop block 27 are respectively connected to an upper surface of the lower die holder 23, the bending die 21 is connected to an upper surface of the lower pad 24 and abuts against the second stop block 27, and the bending die 21 can be positioned by using the second stop block 27.
As shown in fig. 1 and 2, the lower die 2 further includes a lower stripper plate 25, where the lower stripper plate 25 is located in the bending die 21 and is connected with the lower die holder 23 through an elastic structure, where the lower stripper plate 25 is used to bear the sheet 3, for the stamping parts 4 that need to be bent on opposite sides or four sides, the sheet 3 can be directly placed on the bending die 21, and for the stamping parts 4 that need to be bent on one side or two adjacent sides, the placement of the sheet 3 can be facilitated by the arrangement of the lower stripper plate 25, and of course, whatever stamping parts 4 can be arranged, the lower stripper plate 25 that is elastically arranged can not only buffer the rigid contact of the stamping process, improve the edge folding effect, but also be beneficial to the stripping of the stamping parts 4 and the bending die 21. When the die is opened, the upper surface of the lower stripper plate 25 is higher than the upper surface of the bending die 21, and when the die is closed, the lower stripper plate 25 is attached to the lower backing plate 24, and the upper surface of the lower stripper plate 25 is lower than the upper surface of the bending die 21, so that a folded edge is formed.
As shown in fig. 1, in order to realize elastic contact between the limit post 22 and the stripping block 12 and reduce impact on the stripping block 12, the lower die 2 is further provided with a second spring 26, specifically, a through hole is formed in the lower die holder 23 and the lower pad 24, the second spring 26 is disposed in the through hole, a fixed block is disposed at the bottom of the through hole of the lower die holder 23 to limit the second spring 26 in the through hole, meanwhile, the bending die 21 is provided with a through hole coaxial with the through hole, and the limit post 22 is movably sleeved in the through hole of the bending die 21 and is abutted against the upper end of the second spring 26. In this way, when the limiting post 22 abuts against the stripping block 12, the impact force is absorbed by the second spring 26, so that the impact on the stripping block 12 is reduced, and the slow stripping of the stripping block 12 is facilitated.
It is easy to understand that the elastic force of the second spring 26 needs to be greater than the elastic force of the first spring 132, the dead weight of the stripper block 12 and the return structure 13, so that the limit post 22 can stably jack up the stripper block 12 during die assembly, and the second spring 26 cannot be compressed until the stripper block 12 is attached to the upper pad 15.
As shown in fig. 1, the limit post 22 is an inverted T-shaped post, that is, a large diameter portion at the lower end is located in the through holes of the lower die holder 23 and the lower pad 24, and a small diameter portion is inserted into the through hole of the bending die 21, and the diameter of the through hole is smaller than the diameter of the through hole, so that the stability of the limit post 22 can be improved while the limit post 22 is prevented from being pulled out.
When the die is used, the die operation gradually descends through the stamping stroke, the limit column 22 of the lower die 2 is firstly contacted with the stripping block 12 of the upper die 1, the stamping stroke continues to descend, the limit column 22 starts to push the stripping block 12 upwards until the bending male die 11 is completely contacted with the lower stripping plate 25 to press materials, the bending female die 21 starts to be in contact with the plate material 3 for forming, when the die stroke continues to descend, the lower stripping plate 25 is completely closed with the lower backing plate 24, the stripping block 12 is completely closed with the upper backing plate 15, after the material forming is finished, the upper die and the lower die start to be slowly separated along with the operation of the machine, the stripping block 12 and the upper backing plate 15 are slowly separated under the action of the elastic force of the first spring 132 and the second spring 26, the stripping block 12 slowly supports the top surface of the bending edge of the stamping part 4, and the stamping part 4 is slowly separated from the bending male die 11, and therefore, when the stripping is realized, the stamping part 4 is free from damage, impression and deformation.
The embodiment also provides a stamping die for bending the plate, and the bending stripping structure has the effect of realizing the automatic stripping operation without damage, stamping and deformation of the product, thereby improving the yield and the production efficiency of the product.
In the description of the present utility model, it should be understood that the terms "center", "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to an orientation or a positional relationship based on that shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and that these orientation words do not indicate or imply that the apparatus or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a take off material structure of bending, includes bending terrace die (11) and bending die (21) that can merge each other together with sheet material (3) press bending into stamping workpiece (4), its characterized in that still includes:
the stripping block (12) is arranged at the bending edge of the bending male die (11), and the gap between the stripping block (12) and the bending male die (11) is smaller than the thickness of the plate material (3);
the limiting column (22) is arranged on the bending female die (21) in a penetrating way and is used for driving the stripping block (12) to be far away from the bending female die (21) during die assembly so as to avoid the bending edge of the stamping part (4);
and the return structure (13) is connected with the stripping block (12) and is used for driving the stripping block (12) to abut against the end face of the bending edge of the stamping part (4) during die opening so as to separate the stamping part (4) which moves along with the bending male die (11).
2. The bending and stripping structure according to claim 1, wherein: the die further comprises an upper die holder (14), the bending male die (11) is arranged on the upper die holder (14), and the stripping block (12) is connected with the upper die holder (14) through the return structure (13).
3. The bending and stripping structure according to claim 2, wherein: the return structure (13) comprises a spring guide post (131) and a first spring (132);
one end of the spring guide post (131) is movably sleeved on the upper die holder (14), the other end of the spring guide post is connected with the stripping block (12), and the first spring (132) is sleeved on the spring guide post (131) and is positioned between the upper die holder (14) and the stripping block (12).
4. The bending and stripping structure according to claim 2, wherein: an upper base plate (15) is further arranged between the upper die base (14) and the bending male die (11), and a through hole for the return structure (13) to pass through is formed in the upper base plate (15).
5. The bending and stripping structure according to claim 2, wherein: the upper die holder (14) is further provided with a first stop block (16), and the stripping block (12) is located between the bending male die (11) and the first stop block (16).
6. The bending and stripping structure according to claim 1, wherein: the bending die comprises a die body, and is characterized by further comprising a lower die holder (23), wherein the bending die (21) is arranged on the lower die holder (23), one end of the limiting column (22) is connected to the lower die holder (23), and the other end of the limiting column extends out of the bending die (21).
7. The bending and stripping structure according to claim 6, wherein: a lower base plate (24) is further arranged between the lower die holder (23) and the bending die (21), and a through hole for the limiting column (22) to pass through is formed in the lower base plate (24).
8. The bending and stripping structure according to claim 7, wherein: the lower backing plate (24) is further provided with a lower stripper plate (25), the lower stripper plate (25) is used for bearing the plate material (3), and the lower stripper plate (25) is located in the bending female die (21) and is connected with the lower die holder (23) through an elastic structure.
9. The bending and stripping structure according to claim 6, wherein: the lower die holder (23) is provided with a second spring (26), and the limiting column (22) is connected with the lower die holder (23) through the second spring (26).
10. A stamping die, characterized in that: comprising a bent stripping structure according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044126.XU CN219899751U (en) | 2023-05-05 | 2023-05-05 | Bending stripping structure and stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044126.XU CN219899751U (en) | 2023-05-05 | 2023-05-05 | Bending stripping structure and stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219899751U true CN219899751U (en) | 2023-10-27 |
Family
ID=88436172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321044126.XU Active CN219899751U (en) | 2023-05-05 | 2023-05-05 | Bending stripping structure and stamping die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219899751U (en) |
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2023
- 2023-05-05 CN CN202321044126.XU patent/CN219899751U/en active Active
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