CN210817025U - Die device for punching and flanging high-strength steel - Google Patents
Die device for punching and flanging high-strength steel Download PDFInfo
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- CN210817025U CN210817025U CN201921879023.9U CN201921879023U CN210817025U CN 210817025 U CN210817025 U CN 210817025U CN 201921879023 U CN201921879023 U CN 201921879023U CN 210817025 U CN210817025 U CN 210817025U
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Abstract
A die device for punching and flanging high-strength steel comprises a top plate, a hydraulic device, a stand column, an upper die plate, an upper die, a first punch, a second punch, a base, a lower die, an ejector plate and a first spring; the upright columns are arranged between the base and the top plate side by side; the hydraulic device is arranged on the top plate, and the telescopic end of the hydraulic device is connected with the upper template; the upper template is connected with the base through the guide buffer assembly, and an upper die is arranged on the upper template; first punches are arranged on the end surface of the upper die facing the base at equal intervals; a second punch is arranged at one end of the first punch, which is far away from the upper template; the lower die is detachably connected with the base through the connecting assembly, and a blanking groove and a flanging groove are formed in the lower die; the bottom surfaces of the flanging grooves are respectively provided with a through hole for communicating the blanking grooves, and mounting grooves are respectively arranged between the flanging grooves; the first springs are arranged in the mounting grooves at equal intervals respectively, and the other ends of the first springs are connected with the ejection plates respectively. The utility model is simple in operation convenient to use, and can once only be a plurality of hole flanging to panel stamping process.
Description
Technical Field
The utility model relates to a punching press hole flanging mould technical field especially relates to a die set of high strength steel punching press hole flanging.
Background
The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping, and is called cold stamping die (commonly called cold stamping die). Hole flanging is a stamping process for flanging materials into side-standing flanges along the periphery of an inner hole; when the hole flanging is processed on the high-strength steel plate, the required hole flanging can be obtained by multiple operations, so that the processing efficiency is low; and the pressure required when the high-strength steel plate is punched is larger, so that the die is easily damaged.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem that exists among the background art, the utility model provides a die set of high strength steel punching press hole flanging, the utility model provides a die set easy operation convenient to use can once only cushion and then improve the life of mould to a plurality of hole flanging of panel stamping, stability height and the pressure when can punching press.
(II) technical scheme
In order to solve the problems, the utility model provides a die device for punching and flanging high-strength steel, which comprises a top plate, a hydraulic device, a stand column, an upper template, an upper die, a first punch, a second punch, a guide buffer component, a base, a lower die, a connecting component, an ejector plate and a first spring;
the upright columns are arranged side by side, the lower ends of the upright columns are respectively connected with the base, and the upper ends of the upright columns are respectively connected with the top plate; the fixed end of the hydraulic device is arranged on the top plate, and the telescopic end of the hydraulic device is connected with the upper template;
the upper template is connected with the base through the guide buffer assembly, and an upper die is arranged on the end face, facing the base, of the upper template; first punches are arranged on the end surface of the upper die facing the base at equal intervals; a second punch is arranged at one end of the first punch, which is far away from the upper template;
the lower die is detachably connected with the base through the connecting assembly, blanking grooves are formed in the end face, facing the base, of the lower die at equal intervals, and flanging grooves are formed in the end face, facing the upper die, of the lower die at equal intervals; the bottom surfaces of the flanging grooves are respectively provided with a through hole for communicating the blanking grooves, and mounting grooves are respectively arranged between the flanging grooves; the first springs are arranged in the mounting grooves at equal intervals respectively, and the other ends of the first springs are connected with the ejection plates respectively.
Preferably, the diameter of the second punch is not greater than that of the first punch, the end face and the side peripheral face of the second punch, which are far away from the first punch, are in arc transition connection, and the side peripheral face of the second punch is in arc transition connection with the end face, which is in contact with the first punch and the second punch.
Preferably, the diameter value of the flanging groove is not more than the sum of the outer diameter value of the first punch and the thickness value of the flanging plate to be punched.
Preferably, the diameter of the through hole is not smaller than the outer diameter of the second punch.
Preferably, the inner peripheral surface of the through hole and the bottom surface of the flanging groove are in arc transition connection, and the inner peripheral surface of the through hole and the bottom surface of the blanking groove are in arc transition connection.
Preferably, the connecting assembly comprises a mounting plate, a first threaded rod and a second threaded rod; wherein, a vertical first mounting hole is arranged on the base; the end surfaces of the lower die facing the base are respectively provided with a vertical first blind hole;
one end of the first threaded rod is rotatably connected with the mounting plate respectively, and the other end of the first threaded rod is screwed into the first mounting hole respectively;
one end of the second threaded rod is rotatably connected with one end of the mounting plate respectively, and the other end of the second threaded rod is screwed into the first blind hole respectively.
Preferably, first blind hole sets up respectively in the right-angle side department of lower mould, and the aperture of first blind hole and first mounting hole is the same.
Preferably, a second blind hole is further formed in the end face, facing the base, of the lower die; the second blind holes are respectively arranged between the blanking grooves, and the second blind holes are respectively connected with third threaded rods in a threaded manner; the third threaded rods are respectively connected with the attaching plates; the laminating board compresses tightly the base respectively towards the terminal surface of base.
Preferably, the guide buffer assembly comprises a fixed cylinder, a mounting rod, a sliding rod, an elastic ball, a first sliding piece, a second spring and a second sliding piece;
one end of the fixed cylinder is connected with the base respectively, and the other end of the fixed cylinder is provided with an opening respectively;
one end of each mounting rod is connected with the upper template, the other end of each mounting rod extends inwards along the central axis of the mounting rod to form a hollow bin, and the other end of each mounting rod penetrates through the opening and extends into the fixed cylinder;
one end of each sliding rod extends into the hollow bin, the sliding rods are connected with the mounting rods in a sliding mode, and the other ends of the sliding rods are connected with one end of the second sliding piece;
the second sliding parts are respectively connected with the fixed cylinder in a sliding manner, and a placing bin is formed between the other end of each second sliding part and the inner wall of the fixed cylinder; the placing bin is internally provided with an elastic ball;
the second springs are respectively sleeved on the outer sides of the sliding rods; one end of the second spring is connected with the second sliding piece, and the other end of the second spring is connected with the first sliding piece; the first sliding parts are respectively connected with the fixed cylinders in a sliding mode, and second mounting holes for the sliding rods to penetrate through are formed in the first sliding parts respectively.
Preferably, the elastic ball is made of rubber.
The above technical scheme of the utility model has following profitable technological effect:
in the utility model, when in use, the plate to be processed is placed on the lower die; the hydraulic device is electrified to operate; the hydraulic device drives the upper template to move towards one side of the base; the second punch heads are respectively contacted with the plate and punch required punching holes on the plate; the second punch continuously moves downwards to extend into the flanging groove, the first punch continuously moves downwards and penetrates through the punching hole, the first punch enlarges the punching aperture, the materials around the punching hole are gradually bent into the flanging groove and are subjected to plastic deformation under the action of the punching force of the first punch, and the first punch extrudes the materials around the punching hole at the gap between the outer peripheral surface of the first punch and the inner wall of the flanging groove, so that a flanging is formed around the processing hole; waste generated in punching falls onto the base from the blanking groove;
after the flanging is finished, the hydraulic device is reset; the first punch and the second punch move upwards; at the moment, the first spring jacks up the processed plate which is in contact with the jacking plate due to the elastic force generated by compression deformation, so that the processed plate is convenient to collect; the plurality of first punches and the plurality of second punches are arranged, so that the processing efficiency is greatly improved;
in addition, the guide buffer assembly can guide the first punch and the second punch when punching and flanging the plate, so that the processing stability is improved; the guide buffer assembly can also prevent the damage to the punching hole flanging die caused by overlarge pressure output by the hydraulic device, and further prolong the service life of the die.
Drawings
Fig. 1 is the utility model provides a structural schematic diagram of a die set of high strength steel punching press hole flanging.
Fig. 2 is the utility model provides a locally enlarged structural schematic diagram of a department in high strength steel punching press hole flanging's die set.
Fig. 3 is the utility model provides a B department's local enlarged schematic structure view among high strength steel punching press hole flanging's die set.
Reference numerals: 1. a top plate; 2. a hydraulic device; 3. a column; 4. mounting a template; 5. an upper die; 6. a first punch; 7. a second punch; 8. a fixed cylinder; 9. a base; 10. a lower die; 11. mounting a plate; 12. a first threaded rod; 13. attaching a plate; 14. a third threaded rod; 15. a second threaded rod; 16. a flanging groove; 17. a through hole; 18. a blanking groove; 19. ejecting the plate; 20. a first spring; 21. mounting grooves; 22. mounting a rod; 23. a hollow bin; 24. a slide bar; 25. an elastic ball; 26. a first slider; 27. a second spring; 28. a second slide member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the utility model provides a high-strength steel punching and hole flanging die device, which comprises a top plate 1, a hydraulic device 2, a column 3, an upper die plate 4, an upper die 5, a first punch 6, a second punch 7, a guiding and buffering component, a base 9, a lower die 10, a connecting component, a jacking plate 19 and a first spring 20;
the upright columns 3 are arranged between the base 9 and the top plate 1 side by side, the lower ends of the upright columns 3 are respectively connected with the base 9, and the upper ends of the upright columns 3 are respectively connected with the top plate 1;
the fixed end of the hydraulic device 2 is arranged on the top plate 1, and the telescopic end of the hydraulic device 2 is connected with the upper template 4; the hydraulic device 2 is hydraulic equipment, the hydraulic device 2 is used for driving the upper template 4 to move towards the direction of the base 9, a first punch 6 and a second punch 7 which are arranged on the upper die 5 are in contact with a plate placed on the lower die 10 and used for punching and flanging the plate, and the second punch 7 and the first punch 6 respectively extend into the through hole 17 and the flanging groove 16;
the upper template 4 is connected with a base 9 through a guide buffer assembly, and an upper die 5 is arranged on the end surface of the upper template 4 facing the base 9; the end surface of the upper die 5 facing the base 9 is provided with first punches 6 at equal intervals; a second punch 7 is arranged at one end of the first punch 6, which is far away from the upper template 4;
further, the first punch 6 and the second punch 7 are respectively cylindrical, and the first punch 6 and the second punch 7 are of an integral structure;
the lower die 10 is detachably connected with the base 9 through a connecting assembly, and a gap is reserved between the lower die 10 and the base 9; blanking grooves 18 are formed in the end face, facing the base 9, of the lower die 10 at equal intervals, and flanging grooves 16 are formed in the end face, facing the upper die 5, of the lower die 10 at equal intervals;
the bottom surfaces of the flanging grooves 16 are respectively provided with through holes 17 for communicating with the blanking grooves 18, and mounting grooves 21 are respectively arranged between the flanging grooves 16;
the first springs 20 are respectively arranged in the mounting grooves 21 at equal intervals, and the other ends of the first springs 20 are respectively connected with the ejection plates 19; initially, the total length of the first spring 20 and the ejector plate 19 is not less than the groove depth of the mounting groove 21, i.e., the distance from the upper end surface of the ejector plate 19 to the base 9 is not less than the distance from the upper end surface of the lower mold 10 to the base 9.
In the utility model, when in use, a plate to be processed is placed on the lower die 10; the hydraulic device 2 is electrified to operate; the hydraulic device 2 drives the upper template 4 to move towards one side of the base 9; the second punches 7 are respectively contacted with the plate and punch required punching holes on the plate; the second punch 7 continuously moves downwards to extend into the flanging groove 16, the first punch 6 continuously moves downwards and penetrates through the punching hole, the first punch 6 expands the punching hole diameter, materials around the punching hole are gradually bent into the flanging groove 16 under the action of the impact force of the first punch 6 and are subjected to plastic deformation, and the first punch 6 extrudes the materials around the punching hole at a gap between the outer peripheral surface of the first punch 6 and the inner wall of the flanging groove 16, so that a flanging is formed around the processing hole; the waste generated in punching falls onto the base 9 from the blanking groove 18;
after the flanging is finished, the hydraulic device 2 is reset; the first punch 6 and the second punch 7 move upwards; at this time, the first spring 20 jacks up the processed plate contacted with the ejector plate 19 due to the elastic force generated by the compression deformation, so that the processed plate is convenient to collect; the arrangement of the first punches 6 and the second punches 7 greatly improves the processing efficiency.
In an alternative embodiment, the diameter of the second punch 7 is not greater than the diameter of the first punch 6, the end face and the side circumferential face of the second punch 7 away from the first punch 6 are in circular arc transition connection, and the side circumferential face of the second punch 7 is in circular arc transition connection with the end face of the first punch 6 contacting the second punch 7.
In an alternative embodiment, the diameter value of the flanging groove 16 is not more than the sum of the outer diameter value of the first punch 6 and the thickness value of the flanging plate to be punched; so that the material around the punched hole is extruded by the first punch 6 in the re-flanging groove 16 to form a vertical flanging around the punched hole.
In an alternative embodiment, the diameter of the through hole 17 is not smaller than the outer diameter of the second punch 7 to facilitate the passage of the second punch 7 through the through hole 17.
In an alternative embodiment, the inner circumferential surface of the through hole 17 and the bottom surface of the flanging groove 16 are in arc transition connection, and the inner circumferential surface of the through hole 17 and the bottom surface of the blanking groove 18 are in arc transition connection.
In an alternative embodiment, the connection assembly comprises a mounting plate 11, a first threaded rod 12 and a second threaded rod 15; wherein, a vertical first mounting hole is arranged on the base 9; the end surfaces of the lower die 10 facing the base 9 are respectively provided with a vertical first blind hole;
one end of the first threaded rod 12 is rotatably connected with the mounting plate 11, and the other end of the first threaded rod 12 is screwed into the first mounting hole;
one end of the second threaded rod 15 is rotatably connected with one end of the mounting plate 11, and the other end of the second threaded rod 15 is screwed into the first blind hole;
the lower die 10 is conveniently arranged on the base 9 through the connecting component, and the distance between the base 9 and the lower die 10 can be adjusted; it should be noted that the first threaded rod 12 and the second threaded rod 15 are respectively provided with a nut for tightening; the nuts A are respectively in threaded connection with the first threaded rods 12, and the end faces, facing the base 9, of the nuts A respectively press the base 9 tightly; the nuts B are respectively screwed to the second threaded rods 15, and the end faces of the nuts B facing the lower die 10 respectively press the lower die 10.
In an alternative embodiment, the first blind holes are respectively arranged at the right-angle sides of the lower die 10, and the diameters of the first blind holes and the first mounting holes are the same.
In an alternative embodiment, a second blind hole is further formed on the end surface of the lower die 10 facing the base 9; second blind holes are respectively arranged between the blanking grooves 18, and third threaded rods 14 are respectively connected in the second blind holes in a threaded manner; the third threaded rods 14 are respectively connected with the jointing plates 13; the end surfaces of the attaching plates 13 facing the base 9 respectively press the base 9; the lower die 10 is supported by the arranged attaching plate 13 and the third threaded rod 14, so that the stability of the lower die 10 is further improved, and the lower die 10 is prevented from being damaged by overlarge stamping force.
In an alternative embodiment, the guide buffer assembly includes a fixed cylinder 8, a mounting rod 22, a slide rod 24, an elastic ball 25, a first slider 26, a second spring 27, and a second slider 28;
one end of the fixed cylinder 8 is respectively connected with the base 9, and the other end of the fixed cylinder 8 is respectively provided with an opening;
one end of the mounting rod 22 is respectively connected with the upper template 4, the other end of the mounting rod 22 extends inwards along the central axis thereof to be provided with a hollow bin 23, and the other end of the mounting rod 22 respectively passes through the opening and extends into the fixed cylinder 8; the mounting rods 22 are respectively arranged at the openings of the fixed cylinder 8 in a sliding manner; the mounting rod 22 is slidably connected with the fixed cylinder 8 to provide a guiding function, so that the upper template 4 moves downwards more stably;
one end of a sliding rod 24 extends into the hollow bin 23 respectively, the sliding rod 24 is connected with the mounting rod 22 in a sliding mode, and the other end of the sliding rod 24 is connected with one end of a second sliding piece 28 respectively;
the second sliding parts 28 are respectively connected with the fixed cylinder 8 in a sliding manner, and a placing bin is formed between the other end of the second sliding part 28 and the inner wall of the fixed cylinder 8; an elastic ball 25 is arranged in the placing bin;
the second springs 27 are respectively sleeved on the outer sides of the sliding rods 24; one ends of the second springs 27 are respectively connected with the second sliding parts 28, and the other ends of the second springs 27 are respectively connected with the first sliding parts 26; the first sliding parts 26 are respectively connected with the fixed cylinders 8 in a sliding manner, and the first sliding parts 26 are respectively provided with a second mounting hole for the sliding rod 24 to pass through.
When the upper template 4 moves downwards to punch and flange the plate, the mounting rod 22 moves downwards along the length direction of the fixed cylinder 8, and the mounting rod 22 contacts with the first sliding piece 26 and extrudes the first sliding piece 26; the first sliders 26 slide toward the second slider 28 sides, respectively; the second spring 27 and the elastic ball 25 are respectively pressed to be elastically deformed; the elastic force generated by elastic deformation buffers the pressure of the hydraulic device 2, and the damage to the punching and hole flanging die caused by overlarge pressure is avoided; thereby prolonging the service life of the die.
In an alternative embodiment, the resilient ball 25 is made of rubber.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A die device for punching and flanging high-strength steel is characterized by comprising a top plate (1), a hydraulic device (2), a stand column (3), an upper die plate (4), an upper die (5), a first punch (6), a second punch (7), a guide buffer assembly, a base (9), a lower die (10), a connecting assembly, a jacking plate (19) and a first spring (20);
the upright posts (3) are arranged side by side, the lower ends of the upright posts (3) are respectively connected with the base (9), and the upper ends of the upright posts (3) are respectively connected with the top plate (1); the fixed end of the hydraulic device (2) is arranged on the top plate (1), and the telescopic end of the hydraulic device (2) is connected with the upper template (4);
the upper template (4) is connected with the base (9) through the guide buffer assembly, and an upper die (5) is arranged on the end face, facing the base (9), of the upper template (4); first punches (6) are arranged on the end surface of the upper die (5) facing the base (9) at equal intervals; a second punch (7) is arranged at one end of the first punch (6) far away from the upper template (4);
the lower die (10) is detachably connected with the base (9) through the connecting assembly, blanking grooves (18) are formed in the end face, facing the base (9), of the lower die (10) at equal intervals, and flanging grooves (16) are formed in the end face, facing the upper die (5), of the lower die (10) at equal intervals; the bottom surfaces of the flanging grooves (16) are respectively provided with a through hole (17) for communicating with the blanking grooves (18), and mounting grooves (21) are respectively arranged between the flanging grooves (16); the first springs (20) are respectively arranged in the mounting grooves (21) at equal intervals, and the other ends of the first springs (20) are respectively connected with the ejection plates (19).
2. The die device for punching and flanging high-strength steel according to claim 1, wherein the diameter of the second punch (7) is not larger than that of the first punch (6), the end surface and the side peripheral surface of the second punch (7) far away from the first punch (6) are in arc transition connection, and the side peripheral surface of the second punch (7) is in arc transition connection with the end surface of the first punch (6) in contact with the second punch (7).
3. The die set for punching and flanging high-strength steel according to claim 1, wherein the diameter value of the flanging groove (16) is not more than the sum of the outer diameter value of the first punch (6) and the thickness value of the sheet material to be punched.
4. The die set for punching and flanging high-strength steel according to claim 1, wherein the diameter of the through hole (17) is not smaller than the outer diameter of the second punch (7).
5. The die device for punching and flanging high-strength steel according to claim 1, wherein the inner circumferential surface of the through hole (17) and the bottom surface of the flanging groove (16) are in arc transition connection, and the inner circumferential surface of the through hole (17) and the bottom surface of the blanking groove (18) are in arc transition connection.
6. The high-strength steel punching and flanging die device is characterized in that the connecting assembly comprises a mounting plate (11), a first threaded rod (12) and a second threaded rod (15); wherein, a vertical first mounting hole is arranged on the base (9); vertical first blind holes are respectively formed in the end faces, facing the base (9), of the lower die (10); one end of the first threaded rod (12) is rotatably connected with the mounting plate (11) respectively, and the other end of the first threaded rod (12) is screwed into the first mounting hole in a threaded manner respectively; one end of the second threaded rod (15) is rotatably connected with one end of the mounting plate (11) respectively, and the other end of the second threaded rod (15) is screwed into the first blind hole respectively.
7. The die device for punching and flanging high-strength steel according to claim 6, wherein the first blind holes are respectively arranged at right-angle sides of the lower die (10), and the diameters of the first blind holes and the first mounting holes are the same.
8. The die device for punching and flanging high-strength steel according to claim 6, wherein a second blind hole is further formed in the end face, facing the base (9), of the lower die (10); the second blind holes are respectively arranged between the blanking grooves (18), and the second blind holes are respectively connected with third threaded rods (14) in a threaded manner; the third threaded rods (14) are respectively connected with the binding plates (13); the attaching plates (13) respectively press the base (9) towards the end face of the base (9).
9. The die device for punching and flanging high-strength steel according to claim 1, wherein the guide buffer assembly comprises a fixed cylinder (8), a mounting rod (22), a sliding rod (24), an elastic ball (25), a first sliding member (26), a second spring (27) and a second sliding member (28); one end of the fixed cylinder (8) is respectively connected with the base (9), and the other end of the fixed cylinder (8) is respectively provided with an opening; one end of the mounting rod (22) is respectively connected with the upper template (4), the other end of the mounting rod (22) extends inwards along the central axis thereof to be provided with a hollow bin (23), and the other end of the mounting rod (22) respectively penetrates through the opening and extends into the fixed cylinder (8); one end of a sliding rod (24) extends into the hollow bin (23) respectively, the sliding rod (24) is connected with the mounting rod (22) in a sliding mode, and the other end of the sliding rod (24) is connected with one end of a second sliding piece (28) respectively; the second sliding parts (28) are respectively connected with the fixed cylinder (8) in a sliding manner, and a placing bin is formed between the other end of the second sliding part (28) and the inner wall of the fixed cylinder (8); an elastic ball (25) is arranged in the placing bin; the second springs (27) are respectively sleeved on the outer sides of the sliding rods (24); one end of the second spring (27) is respectively connected with the second sliding piece (28), and the other end of the second spring (27) is respectively connected with the first sliding piece (26); the first sliding parts (26) are respectively connected with the fixed cylinder (8) in a sliding mode, and second mounting holes for the sliding rods (24) to penetrate through are formed in the first sliding parts (26).
10. The die device for punching and flanging high-strength steel according to claim 9, wherein the elastic ball (25) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921879023.9U CN210817025U (en) | 2019-11-04 | 2019-11-04 | Die device for punching and flanging high-strength steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921879023.9U CN210817025U (en) | 2019-11-04 | 2019-11-04 | Die device for punching and flanging high-strength steel |
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| Publication Number | Publication Date |
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| CN210817025U true CN210817025U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921879023.9U Active CN210817025U (en) | 2019-11-04 | 2019-11-04 | Die device for punching and flanging high-strength steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264513A (en) * | 2020-09-30 | 2021-01-26 | 安徽震祥精工科技有限公司 | Staged punching die |
| CN114309289A (en) * | 2021-12-27 | 2022-04-12 | 靖江市联友模具制造有限公司 | High-efficient location direction auxiliary assembly of accurate mould operation |
-
2019
- 2019-11-04 CN CN201921879023.9U patent/CN210817025U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264513A (en) * | 2020-09-30 | 2021-01-26 | 安徽震祥精工科技有限公司 | Staged punching die |
| CN112264513B (en) * | 2020-09-30 | 2023-06-16 | 安徽震祥精工科技有限公司 | Staged punching die |
| CN114309289A (en) * | 2021-12-27 | 2022-04-12 | 靖江市联友模具制造有限公司 | High-efficient location direction auxiliary assembly of accurate mould operation |
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