CN223056480U - A punching die for one-step hole forming - Google Patents
A punching die for one-step hole forming Download PDFInfo
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- CN223056480U CN223056480U CN202421947597.6U CN202421947597U CN223056480U CN 223056480 U CN223056480 U CN 223056480U CN 202421947597 U CN202421947597 U CN 202421947597U CN 223056480 U CN223056480 U CN 223056480U
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Abstract
本实用新型公开了一种翻孔一次成型的冲压模具，涉及冲压模具技术领域。该翻孔一次成型的冲压模具包括上模和下模，上模上安装有翻孔冲头，翻孔冲头包括从上至下一体成型的固定部和冲孔部，冲孔部下端呈锥形，冲孔部的轴径小于固定部的轴径，且冲孔部与固定部之间通过弧面过渡并形成第一限位轴肩；下模上安装有下模成型块和多个下模脱料组件，下模成型块的中部设有通孔，通孔的孔径大于冲孔部的轴径，其用于容纳产品翻孔后的翻边，下模上位于下模成型块下方贯穿设置有与通孔连通的废料孔，多个下模脱料组件围绕下模成型块间隔设置，其用于向上顶出产品翻孔后的翻边。该翻孔一次成型的冲压模具能够提升产品的加工效率，降低产品的生产成本。
The utility model discloses a punching die for one-step hole forming, and relates to the technical field of punching dies. The punching die for one-step hole forming comprises an upper die and a lower die, wherein a punching punch is installed on the upper die, and the punching punch comprises a fixed part and a punching part integrally formed from top to bottom, wherein the lower end of the punching part is tapered, and the axial diameter of the punching part is smaller than the axial diameter of the fixed part, and the punching part and the fixed part are transitioned through an arc surface and form a first limiting shoulder; a lower die forming block and a plurality of lower die stripping assemblies are installed on the lower die, and a through hole is provided in the middle of the lower die forming block, and the aperture of the through hole is larger than the axial diameter of the punching part, which is used to accommodate the flanging of the product after the hole is flipped, and a waste hole connected with the through hole is provided on the lower die below the lower die forming block, and a plurality of lower die stripping assemblies are arranged at intervals around the lower die forming block, which are used to push upward the flanging of the product after the hole is flipped. The punching die for one-step hole forming can improve the processing efficiency of the product and reduce the production cost of the product.
Description
Technical Field
The utility model relates to the technical field of stamping dies, in particular to a stamping die for hole flanging one-step forming.
Background
Hole flanging is a stamping process that turns material into a side flange around the inner hole. In the prior art, when hole flanging is carried out on a sheet product, two working procedures are usually needed, namely, the hole flanging pre-punching is firstly carried out on the product through a punching die, namely, waste materials are separated from the product along a closed contour, and then the hole flanging forming is carried out on the product through the hole flanging die. The hole flanging process in the prior art is complex in procedure, and hole flanging forming can be completed only by using two sets of stamping dies and performing two operations, so that the processing efficiency of a product is reduced, and the production cost of the product is increased.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a punching die for hole flanging one-step forming, so that the processing efficiency of a product is improved, and the production cost of the product is reduced.
In order to solve the technical problems, the utility model adopts the following technical scheme:
A punching die for one-time forming of hole flanging comprises an upper die and a lower die, wherein a hole flanging punch is arranged on the upper die and comprises a fixing part and a punching part which are integrally formed from top to bottom, the lower end of the punching part is conical, the shaft diameter of the punching part is smaller than that of the fixing part, the punching part and the fixing part are in transition through an arc surface to form a first limiting shaft shoulder, a lower die forming block and a plurality of lower die stripping components are arranged on the lower die, a through hole is formed in the middle of the lower die forming block, the aperture of the through hole is larger than that of the punching part, the through hole is used for accommodating a flanging after the hole flanging of a product, a waste hole communicated with the through hole is formed below the lower die forming block in a penetrating manner on the lower die, and the lower die stripping components are arranged around the lower die forming block at intervals and are used for upwards ejecting the flanging after the hole flanging of the product.
As a further explanation of the above technical solution:
In the technical scheme, the lower die comprises a lower fixing plate, a lower base plate and a lower die holder which are sequentially arranged from top to bottom, a plurality of first mounting holes and second mounting holes which are matched with the lower die stripping assembly are respectively arranged on the lower fixing plate and the lower base plate, a first limiting shoulder is arranged in the first mounting holes, internal threads are arranged in the second mounting holes, the lower die stripping assembly comprises a thimble, a spring and a stop screw which are sequentially arranged from top to bottom, a second limiting shoulder which is matched with the first limiting shoulder is arranged at the lower part of the thimble, the thimble is movably arranged on the first mounting holes in a penetrating manner, the second limiting shoulder is positioned below the first limiting shoulder, the stop screw is in the second mounting holes in a threaded manner, the spring is arranged between the thimble and the stop screw, and two ends of the spring are respectively abutted to the lower end of the thimble and the upper end of the stop screw.
In the technical scheme, the lower fixing plate is further provided with a third mounting hole matched with the lower die forming block, a second limiting shoulder is arranged in the third mounting hole, the lower die forming block is cylindrical, the lower portion of the lower die forming block is provided with a third limiting shoulder matched with the second limiting shoulder, the upper end of the lower die forming block is tightly inserted into the third mounting hole, the lower end of the lower die forming block is pressed on the lower base plate, and the third limiting shoulder is located below the second limiting shoulder.
In the technical scheme, the upper die comprises an upper die seat, an upper base plate, an upper fixing plate and an upper stripper plate which are sequentially arranged from top to bottom.
Compared with the prior art, the utility model at least realizes the following beneficial effects:
When the die is assembled, the upper die drives the hole flanging punch to move downwards, the hole flanging punch is matched with the lower die forming block below to work, the lower end of the punching part is contacted with a product to perform hole flanging pre-punching on the product, meanwhile, the hole diameter of the through hole is larger than the shaft diameter of the punching part, the punching part can downwards extrude the area around the inner hole of the product to the side wall of the through hole, so that the flanging of the hole flanging of the product is formed, and waste generated by punching can fall from the waste hole below; when the die is opened, the hole flanging punch and the upper stripper plate move upwards, and the flanging after the product hole flanging is ejected out of the through hole by the lower die stripper assembly. According to the utility model, only one set of stamping die is used, the hole flanging and forming of the product can be completed through one operation, the working procedures are reduced, the processing efficiency of the product is improved, and the production cost of the product is reduced.
Drawings
One or more embodiments of the present utility model will now be described, by way of example only, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is an exploded view of an embodiment of the present application;
FIG. 3 is a cross-sectional view of an embodiment of the present application;
fig. 4 is an enlarged partial schematic view of the area a of fig. 3.
The drawing comprises the following components of a hole flanging punch, a fixing part, a punching part, a lower die forming block, a through hole, a lower die stripping component, a thimble, a spring, a stop screw, a first limiting shaft shoulder, a waste hole, a lower fixing plate, a first mounting hole, a first limiting shoulder, a second limiting shaft shoulder, a third mounting hole, a lower backing plate, a second limiting shaft shoulder, a second mounting hole, a lower backing plate, a first mounting hole, a second limiting shaft shoulder, a third limiting shaft shoulder, an upper stripping plate and a product.
Detailed Description
The utility model will be described in detail hereinafter with reference to exemplary embodiments in the accompanying drawings. It should be understood, however, that this utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the utility model to those skilled in the art.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a number", "a plurality" or "a plurality" is two or more, unless specifically defined otherwise. In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1 to 4, the punching die for hole flanging one-time forming in this embodiment includes an upper die and a lower die, wherein a product 100 to be hole-flanging is placed between the upper die and the lower die, a hole flanging punch 1 is mounted on the upper die, the hole flanging punch 1 includes a fixing portion 11 and a punching portion 12 integrally formed from top to bottom, the lower end of the punching portion 12 is tapered, the shaft diameter of the punching portion 12 is smaller than that of the fixing portion 11, the punching portion 12 and the fixing portion 11 are transited through an arc surface to form a first limiting shaft shoulder 4, a lower die forming block 2 and a plurality of lower die stripping assemblies 3 are mounted on the lower die, a through hole 21 is formed in the middle of the lower die forming block 2, the diameter of the through hole 21 is larger than that of the shaft diameter of the punching portion 12, the through hole is used for accommodating a flanging after hole flanging of the product 100, a waste hole 5 communicated with the through hole 21 is arranged below the lower die forming block 2 in a penetrating manner, and a plurality of lower die stripping assemblies 3 are arranged at intervals around the lower die forming block 2, and are used for ejecting the flanging after hole flanging the product 100 upwards.
Specifically, the lower die comprises a lower fixing plate 6, a lower base plate 7 and a lower die holder which are sequentially arranged from top to bottom, a plurality of first mounting holes 61 and second mounting holes 71 which are matched with the lower die stripping assembly 3 are respectively arranged on the lower fixing plate 6 and the lower base plate 7, a first limit shoulder 611 is arranged in the first mounting holes 61, internal threads are arranged in the second mounting holes 71, the lower die stripping assembly 3 comprises a thimble 31, a spring 32 and a stop screw 33 which are sequentially arranged from top to bottom, a second limit shaft shoulder 8 which is matched with the first limit shoulder 611 is arranged at the lower part of the thimble 31, the thimble 31 is movably arranged on the first mounting holes 61 in a penetrating manner, the second limit shaft shoulder 8 is arranged below the first limit shoulder 611, the stop screw 33 is connected in the second mounting holes 71 in a threaded manner, the spring 32 is arranged between the thimble 31 and the stop screw 33, and two ends of the spring 32 are respectively propped against the lower end of the thimble 31 and the upper end of the stop screw 33. When the die is opened, the hole flanging punch 1 and the upper stripping plate 10 move upwards, and the spring 32 drives the thimble 31 to move upwards, so that the flanging of the product 100 is ejected from the through hole 21, and a plurality of lower die stripping assemblies 3 are arranged at intervals around the lower die forming block 2, so that the flanging surrounding area of the product 100 is uniformly stressed, the flanging can be effectively ejected, and deformation of the flanging surrounding area of the product 100 can be avoided.
Specifically, the lower fixing plate 6 is further provided with a third mounting hole 62 matched with the lower die forming block 2, a second limiting shoulder 621 is arranged in the third mounting hole 62, the lower die forming block 2 is cylindrical, the lower portion of the lower die forming block 2 is provided with a third limiting shoulder 9 matched with the second limiting shoulder 621, the upper end of the lower die forming block 2 is tightly inserted into the third mounting hole 62, the lower end of the lower die forming block is pressed on the lower base plate 7, and the third limiting shoulder 9 is located below the second limiting shoulder 621. The lower die forming blocks 2 can be detached and replaced, alternatively, different lower die forming blocks 2 can be provided with through holes 21 with different sizes so as to match hole flanging punches 1 with different sizes for hole flanging.
Specifically, the upper die comprises an upper die seat, an upper base plate, an upper fixing plate and an upper stripper plate 10 which are sequentially arranged from top to bottom, wherein the fixing part 11 of the hole flanging punch 1 is arranged on the upper fixing plate, the hole flanging punch 1 movably penetrates through the upper stripper plate 10, the upper stripper plate 10 plays a role in pressing a product 100 during die assembly, and plays a role in assisting the product 100 to strip from the hole flanging punch 1 during die opening.
The working principle of the utility model is as follows:
When the die is closed, the upper die drives the hole flanging punch 1 to move downwards, the hole flanging punch 1 and the lower die forming block 2 below are matched to work, the lower end of the punching part 12 is in contact with the product 100 to perform hole flanging pre-punching, meanwhile, the hole diameter of the through hole 21 is larger than the shaft diameter of the punching part 12, after the punching part 12 pre-punches the product 100, the area around the hole flanging of the product 100 can be downwards extruded to the side wall of the through hole 21 until the first limiting shaft shoulder 4 is in contact with the product 100, so that the flanging of the hole flanging of the product 100 is formed, waste generated by the hole flanging of the product 100 can fall from the waste hole 5 below, and when the die is opened, the hole flanging punch 1 and the upper stripper plate 10 move upwards, and at the moment, the thimble 31 is driven to move upwards under the elastic force of the spring 32, so that the flanging of the product 100 is ejected from the through hole 21. According to the utility model, only one set of stamping die and one hole flanging punch 1 are used, the hole flanging forming of the product 100 can be completed through one-time operation, the procedures are reduced, the production cost is reduced, and the production and processing efficiency is improved.
It should be understood that all the above embodiments are illustrative and not restrictive, and that all changes, equivalents, and modifications that come within the spirit of the utility model and to be embraced by the specific embodiments described above are desired to be protected.
Claims (4)
1. A punching die for one-time forming of hole flanging comprises an upper die and a lower die and is characterized in that the upper die is provided with a hole flanging punch (1), the hole flanging punch (1) comprises a fixing portion (11) and a punching portion (12) which are integrally formed from top to bottom, the lower end of the punching portion (12) is conical, the shaft diameter of the punching portion (12) is smaller than that of the fixing portion (11), the punching portion (12) and the fixing portion (11) are transited through an arc surface to form a first limiting shaft shoulder (4), the lower die is provided with a lower die forming block (2) and a plurality of lower die stripping components (3), the middle of the lower die forming block (2) is provided with a through hole (21), the aperture of the through hole (21) is larger than that of the shaft diameter of the punching portion (12) which is used for accommodating flanging after hole flanging of a product (100), the lower die is located below the lower die forming block (12) is penetrated and provided with a waste material (5) communicated with the through hole (21), and the lower die stripping components (3) are arranged around the lower die and are spaced from each other after the lower die is ejected out of the product (100).
2. The stamping die for hole flanging one-time forming is characterized in that the lower die comprises a lower fixing plate (6), a lower base plate (7) and a lower die holder which are sequentially arranged from top to bottom, a plurality of first mounting holes (61) and second mounting holes (71) which are matched with the lower die stripping assembly (3) are respectively arranged on the lower fixing plate (6) and the lower base plate (7), a first limiting shoulder (611) is arranged in the first mounting holes (61), internal threads are arranged in the second mounting holes (71), the lower die stripping assembly (3) comprises a thimble (31), a spring (32) and stop screws (33) which are sequentially arranged from top to bottom, second limiting shoulders (8) which are matched with the first limiting shoulders (611) are arranged at the lower portion of the thimble (31), the second limiting shoulders (8) are arranged below the first limiting shoulders (611) in a movable mode, and the second stop screws (33) are arranged at the two ends of the thimble (31) in the spring (33), and the two stop screws (33) are respectively arranged at the two ends of the thimble (31).
3. The stamping die for hole flanging one-time forming is characterized in that a third mounting hole (62) matched with the lower die forming block (2) is further formed in the lower fixing plate (6), a second limiting shoulder (621) is arranged in the third mounting hole (62), the lower die forming block (2) is cylindrical, a third limiting shoulder (9) matched with the second limiting shoulder (621) is arranged at the lower portion of the lower die forming block (2), the upper end of the lower die forming block (2) is tightly inserted into the third mounting hole (62), the lower end of the lower die forming block is pressed on the lower base plate (7), and the third limiting shoulder (9) is located below the second limiting shoulder (621).
4. The hole flanging one-time forming stamping die according to claim 1, wherein the upper die comprises an upper die seat, an upper base plate, an upper fixing plate and an upper stripper plate (10) which are sequentially arranged from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421947597.6U CN223056480U (en) | 2024-08-12 | 2024-08-12 | A punching die for one-step hole forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421947597.6U CN223056480U (en) | 2024-08-12 | 2024-08-12 | A punching die for one-step hole forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223056480U true CN223056480U (en) | 2025-07-04 |
Family
ID=96208120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421947597.6U Active CN223056480U (en) | 2024-08-12 | 2024-08-12 | A punching die for one-step hole forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223056480U (en) |
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2024
- 2024-08-12 CN CN202421947597.6U patent/CN223056480U/en active Active
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