CN219616517U - Mould for convex hull punching - Google Patents
Mould for convex hull punching Download PDFInfo
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- CN219616517U CN219616517U CN202320531819.5U CN202320531819U CN219616517U CN 219616517 U CN219616517 U CN 219616517U CN 202320531819 U CN202320531819 U CN 202320531819U CN 219616517 U CN219616517 U CN 219616517U
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- assembly
- die
- punching
- convex hull
- pressing
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Abstract
The utility model discloses a mould for punching a convex hull, which comprises an upper mould assembly, a lower mould assembly, a punching forming assembly and a pressing assembly, wherein the upper mould assembly comprises an upper mould base and an upper mould fixing assembly; the material pressing assembly comprises an upper material pressing block and an upper material pressing spring; the punching forming assembly comprises a punching punch and a convex hull forming assembly; the convex hull forming assembly comprises a first forming assembly and a second forming assembly; the upper pressing block is connected with the upper die fixing assembly through an upper pressing spring; the first forming assembly is fixedly connected below the upper pressing block; the second molding assembly is connected with the lower die assembly and is correspondingly arranged with the first molding assembly; one end of the punching punch is fixedly connected with the upper die assembly, and the other end of the punching punch penetrates through the pressing block and the first forming assembly. The die can sequentially perform the working procedures of convex hull punching and hole punching in one die assembly, and the problem that the convex hull and the bottom hole are not concentric due to positioning errors formed by two die assemblies can be effectively avoided.
Description
Technical Field
The utility model relates to the technical field of sheet metal machining equipment, in particular to a mould for punching convex hulls.
Background
In sheet metal machining, a workpiece is required to be subjected to convex hull stamping and punching at all times, the traditional machining mode is divided into two working procedures, the workpiece is subjected to stretching convex hull stamping at first, and then the convex hull is subjected to punching; because need carry out twice processing, the position deviation appears easily during the secondary location, causes convex closure and the bottom hole of punching press to be eccentric, can not reach the product quality requirement, reduces the yields, simultaneously, divide twice processing to same position, and is comparatively time-consuming, has the space of improvement.
Disclosure of Invention
In view of the defects existing in the existing convex hull punching process, the utility model provides a die for convex hull punching, which can achieve the effect of preventing the convex hull from being not concentric with a punching bottom hole.
In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:
the die for punching the convex hulls comprises an upper die assembly, a lower die assembly, a punching molding assembly and a pressing assembly, wherein the upper die assembly comprises an upper die base and an upper die fixing assembly fixed on the upper die base; the material pressing assembly comprises an upper material pressing block and an upper material pressing spring; the punching forming assembly comprises a punching punch and a convex hull forming assembly; the convex hull forming assembly comprises a first forming assembly and a second forming assembly; the upper pressing block is connected with the upper die fixing assembly through an upper pressing spring; the first forming assembly is fixedly connected below the upper pressing block; the second molding assembly is connected with the lower die assembly and is correspondingly arranged with the first molding assembly; one end of the punching punch is fixedly connected with the upper die assembly, and the other end of the punching punch penetrates through the pressing block and the first forming assembly.
During processing operation, a workpiece to be processed is fixed on the upper die assembly; the press drives the upper die assembly to descend, the first molding assembly contacts the surface of the workpiece, then the die continues to be pressed down, the pressing plate presses and fixes the workpiece, the die continues to descend in the process of stretching the convex hull for molding, and the punching punch contacts the workpiece and descends along with the die until the punching process is completed; the press drives the upper die assembly to ascend, and the pressing plate is separated from the upper die fixing assembly under the action of the upper pressing spring;
the pressing assembly further comprises a pressing sheet and a pressing spring; the lower die fixing assembly comprises a lower die plate and a lower fixing plate; the lower pressing material sheet is connected with the lower fixing plate through a lower pressing spring; the lower template is fixedly connected to the lower fixing plate and penetrates through the lower pressing material sheet; the second molding component passes through the lower die plate and is fixedly connected with the lower pressing material sheet; the lower pressing material sheet is matched with the upper pressing material sheet to clamp a workpiece to be machined in the die assembly process, the surface of the workpiece to be machined is kept flat, warping in the machining process is avoided, and the pressing material spring is used for helping reset after die assembly is finished.
The first forming component is a convex hull punch; the second molding component is a convex hull molding block, and the surface of the second molding component is provided with a concave matched with the convex hull punch; in the stamping process, the convex hull punch is matched with the convex hull forming block to stamp out a corresponding convex hull on the surface of the workpiece.
The convex hull forming block is provided with a through hole; the through hole is convenient for the punching punch to pass through, and is convenient for the metal fragments cut by punching to pass through.
The material pressing block comprises an upper material pressing pad plate and an upper material pressing sheet.
The upper die fixing assembly comprises an upper base plate and an upper fixing plate; the two can be fixedly connected through bolts.
The lower die assembly further comprises a supporting assembly arranged below the lower die holder; the support component comprises a lower die pad foot and a lower supporting plate; the support assembly can increase the height of the lower die assembly so as to adapt to various practical scenes.
The upper die assembly further comprises a female die plate; the female die plate is arranged on the periphery of the upper pressing block and fixedly connected with the upper die fixing assembly; the middle part of the concave template is hollowed, the edge part is connected with the upper die fixing assembly, and the peripheral part of the workpiece can be pressed in the pressing process of the upper die assembly, so that the edge of the workpiece is smooth and is not warped.
The implementation of the utility model has the advantages that:
the middle part of the convex hull forming assembly is provided with a through hole and is respectively fixed on the upper die assembly and the lower die assembly, and a punching punch can pass through the through hole; the convex hull and the bottom hole can be punched sequentially after one-time die assembly, so that the problem that the convex hull and the bottom hole are not concentric due to positioning errors formed by two times of die assembly can be effectively avoided, time can be saved, and production efficiency can be improved; the upper die assembly and the lower die assembly are respectively provided with a material pressing assembly and a corresponding spring for resetting, so that a workpiece to be processed can be pressed in the die assembly process, and deformation and warping of the workpiece in the stamping process are prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a mold parting state of a mold for convex hull punching processing according to the utility model;
fig. 2 is a schematic diagram of a mold closing state for convex hull punching processing according to the present utility model;
FIG. 3 is a front view and a top view of a punch head according to an embodiment of the present utility model;
fig. 4 is a front view and a top view of a convex hull punch according to an embodiment of the present utility model;
FIG. 5 is a front view and a top view of a convex hull forming block according to an embodiment of the present utility model;
fig. 6 is a schematic diagram of a workpiece after being formed according to an embodiment of the utility model.
Legend description: 11. an upper die holder; 111. a connecting bolt; 12. an upper backing plate; 13. an upper fixing plate; 14. a female template; 21. a lower template; 22. a lower fixing plate; 23. a lower die holder; 24. a lower die pad foot; 25. a lower support plate; 3. punching a punch; 31. installing a screw hole; 41. feeding a material pressing pad plate; 42. pressing a material sheet; 43. feeding a pressing spring; 44. pressing down the material sheet; 45. pressing down a material spring; 51. convex hull punch; 52. and (5) convex hull forming blocks.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, 2, 3, 4, 5 and 6, the die for punching the convex hull comprises an upper die assembly, a lower die assembly, a punching forming assembly and a pressing assembly, wherein the upper die assembly comprises an upper die holder 11 and an upper die fixing assembly fixed on the upper die holder, and the lower die assembly comprises a lower die holder 23 and a lower die fixing assembly fixed on the lower die holder; the pressing assembly comprises an upper pressing block and an upper pressing spring 43; the punching forming assembly comprises a punching punch 3 and a convex hull forming assembly; the convex hull forming assembly comprises a first forming assembly and a second forming assembly; the upper pressing block is connected with the upper die fixing assembly through an upper pressing spring 43; the first forming assembly is fixedly connected below the upper pressing block; the second molding assembly is connected with the lower die assembly and is correspondingly arranged with the first molding assembly; one end of the punching punch 3 is fixedly connected with the upper die assembly, and the other end of the punching punch penetrates through the pressing block and the first forming assembly.
The blanking assembly further comprises a blanking piece 44 and a blanking spring 45; the lower die fixing assembly comprises a lower die plate 21 and a lower fixing plate 22; the lower pressing material sheet 44 is connected with the lower fixing plate 22 through a lower pressing material spring 45; the lower die plate 21 is fixedly connected to the lower fixing plate 22 and penetrates through the lower pressing material sheet 44; the second molding component passes through the lower die plate 21 and is fixedly connected with the lower pressing material sheet 44; the lower pressing material sheet 44 is matched with the upper pressing material sheet 42 to clamp a workpiece to be processed in the die closing process, so that the surface of the workpiece to be processed is kept flat, warpage in the processing process is avoided, and the lower pressing material spring 45 helps the die to reset after die closing is finished.
In practical application, a plurality of guide posts are arranged between the upper pressing block and the upper die fixing assembly and between the lower pressing material sheet 44 and the lower fixing plate 22; the number of the guide posts is generally 4 and is uniformly distributed at four corners; in order to enable the gap between the upper pressing block and the upper die fixing assembly and the gap between the lower pressing block 44 and the lower fixing plate 22 to be free of gaps, the guide posts are hidden in the counter bores;
in practical application, in order to facilitate the simultaneous punching operation, the first forming component is a convex hull punch 51; the second molding component is a convex hull molding block 52, and the surface of the second molding component is provided with a concave matched with the convex hull punch 51; in the punching process, the convex hull punch 51 is matched with the convex hull forming block 52 to punch a convex hull with an upward corresponding opening on the surface of the workpiece, so that the convex hull is not easy to deform due to the fact that the punching direction is consistent with the convex hull stretching direction when punching is carried out.
The convex hull forming block 52 is provided with a through hole; the through hole is convenient for the punching punch 3 to pass through, and is convenient for the metal fragments cut by punching to pass through.
During processing operation, a workpiece to be processed is fixed on the upper die assembly; the press drives the upper die assembly to descend, the first molding assembly contacts the surface of the workpiece, then the die continues to be pressed down, the pressing plate presses and fixes the workpiece, the die continues to descend in the process of stretching the convex hull for molding, and the punching punch 3 contacts the workpiece and descends along with the die until the punching process is completed; the upper die assembly is driven by the press to ascend, the upper pressing sheet 42 is separated from the upper fixing plate 13 under the action of the upper pressing spring 43, the lower pressing sheet 44 is separated from the lower fixing plate 22 under the action of the lower pressing spring 45, and the die is restored to the initial state;
in the primary die assembly process, two working procedures of convex hull punching and hole punching can be completed, and the problems of positioning errors caused by the two times of die assembly, and possibly caused non-concentricity of the convex hull and the bottom hole, edge warping, convex hull deformation and the like in the two traditional modes are avoided; meanwhile, the working procedures can be saved, the efficiency is improved, and the cost is saved;
the pressing block comprises an upper pressing pad 41 and an upper pressing sheet 42; wherein the upper nip plate 42 may be of a relatively soft material to avoid scratching the workpiece.
The upper die fixing assembly comprises an upper base plate 12 and an upper fixing plate 13; the two can be fixedly connected through bolts; the convex hull punch 51 passes through the upper fixing plate 13 and is fixedly connected with the upper base plate 12, the convex hull punch 51 protrudes out of a part of the upper fixing plate 13, and the height of the protruding part is equivalent to the deformation stroke of the convex hull.
In practical application, one end of the punching punch 3 connected with the upper die assembly is provided with a mounting screw hole 31, and the punching punch 3 is fixedly connected with the upper die holder 11 through a connecting bolt 111, so that the punching punch 3 with various specifications is convenient to detach and replace and is used for punching punched holes with different sizes;
the lower die assembly further comprises a support assembly arranged below the lower die holder 23; the support assembly comprises a lower die pad 24 and a lower support plate 25; the support assembly can increase the height of the lower die assembly so as to adapt to various practical scenes.
The upper die assembly also includes a female die plate 14; the concave template 14 is arranged on the periphery of the upper pressing block and fixedly connected with the upper die fixing assembly; the middle part of the concave template 14 is hollowed out, and the edge part is connected with the upper die fixing assembly, so that the peripheral part of the workpiece can be pressed in the pressing process of the upper die assembly, and the edge of the workpiece is smooth and is not warped.
As shown in fig. 6, a schematic diagram of processing a workpiece using the die in the present embodiment is shown, in which reference numeral a denotes a workpiece body, reference numeral A1 denotes a convex hull portion, and reference numeral A2 denotes a punching portion.
The implementation of the utility model has the advantages that:
the middle part of the convex hull forming assembly is provided with a through hole and is respectively fixed on the upper die assembly and the lower die assembly, and a punching punch can pass through the through hole; the convex hull and the bottom hole can be punched sequentially after one-time die assembly, so that the problem that the convex hull and the bottom hole are not concentric due to positioning errors formed by two times of die assembly can be effectively avoided, time can be saved, and production efficiency can be improved; the upper die assembly and the lower die assembly are respectively provided with a material pressing assembly and a corresponding spring for resetting, so that a workpiece to be processed can be pressed in the die assembly process, and deformation and warping of the workpiece in the stamping process are prevented.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. The die for punching the convex hulls comprises an upper die assembly, a lower die assembly and a punching forming assembly, wherein the upper die assembly comprises an upper die holder (11) and an upper die fixing assembly fixed on the upper die holder, and the lower die assembly comprises a lower die holder (23) and a lower die fixing assembly fixed on the lower die holder; the material pressing assembly comprises an upper material pressing block and an upper material pressing spring (43); the punching molding assembly comprises a punching punch (3) and a convex hull molding assembly; the convex hull forming assembly comprises a first forming assembly and a second forming assembly; the upper pressing block is connected with the upper die fixing assembly through an upper pressing spring (43); the first forming assembly is fixedly connected below the upper pressing block; the second molding assembly is connected with the lower die assembly and is correspondingly arranged with the first molding assembly; one end of the punching punch (3) is fixedly connected with the upper die assembly, and the other end of the punching punch penetrates through the pressing block and the first forming assembly.
2. The convex hull punching die according to claim 1, wherein the blanking assembly further comprises a blanking piece (44) and a blanking spring (45); the lower die fixing assembly comprises a lower die plate (21) and a lower fixing plate (22); the lower pressing material sheet (44) is connected with the lower fixing plate (22) through a lower pressing material spring (45); the lower template (21) is fixedly connected to the lower fixing plate (22) and penetrates through the lower pressing material sheet (44); the second molding component passes through the lower die plate (21) and is fixedly connected with the lower pressing material sheet (44).
3. The die for convex hull punching according to claim 1, characterized in that the first molding member is a convex hull punch (51); the second molding component is a convex hull molding block (52), and the surface of the second molding component is provided with a concave matched with the convex hull punch (51).
4. A mould for punching a convex hull according to claim 3, characterized in that the convex hull forming block (52) is provided with a through hole.
5. The convex hull punching die according to claim 1, wherein the press block includes an upper press pad (41) and an upper press sheet (42).
6. The convex hull punching die according to claim 1, wherein the upper die fixing assembly includes an upper backing plate (12) and an upper fixing plate (13).
7. The convex hull punching die according to claim 1, characterized in that the lower die assembly further comprises a support assembly provided below a lower die holder (23); the support assembly comprises a lower die pad foot (24) and a lower supporting plate (25).
8. The convex hull punching die according to claim 1, characterized in that the upper die assembly further comprises a die plate (14); the female die plate (14) is arranged on the periphery of the upper pressing block and fixedly connected with the upper die fixing assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320531819.5U CN219616517U (en) | 2023-03-18 | 2023-03-18 | Mould for convex hull punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320531819.5U CN219616517U (en) | 2023-03-18 | 2023-03-18 | Mould for convex hull punching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219616517U true CN219616517U (en) | 2023-09-01 |
Family
ID=87797114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320531819.5U Active CN219616517U (en) | 2023-03-18 | 2023-03-18 | Mould for convex hull punching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219616517U (en) |
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2023
- 2023-03-18 CN CN202320531819.5U patent/CN219616517U/en active Active
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