CN213436624U - Bidirectional female die stamping die - Google Patents
Bidirectional female die stamping die Download PDFInfo
- Publication number
- CN213436624U CN213436624U CN202021529525.1U CN202021529525U CN213436624U CN 213436624 U CN213436624 U CN 213436624U CN 202021529525 U CN202021529525 U CN 202021529525U CN 213436624 U CN213436624 U CN 213436624U
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- Prior art keywords
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- material returning
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 49
- 239000003292 glue Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 4
- 239000000047 product Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 10
- 238000004080 punching Methods 0.000 description 8
- 238000012805 post-processing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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Abstract
The utility model provides a bidirectional female die stamping die, which comprises a lower die holder with an accommodating space, an elastic device and a top plate accommodated in the accommodating space, a lower backing plate stacked on the lower die holder, a lower fixing plate stacked on the lower backing plate, a lower material returning module arranged at one side of the lower fixing plate far away from the lower backing plate, a top rod penetrating through the lower fixing plate and the lower backing plate, a lower female die insert detachably arranged on the lower material returning module, and a lower male die penetrating through the lower female die insert and the lower material returning module, the stamping die comprises a lower stamping die spring arranged on a lower base plate, an upper die base spaced from the lower die base, an upper stripper plate stacked on the upper die base, an upper female die insert detachably arranged on one side of the upper stripper plate close to the lower female die insert, an upper male die penetrating through the upper female die insert and the upper stripper plate, an upper male die spring arranged on the upper die base, a liftout pin penetrating through the upper stripper plate and a liftout pin spring arranged on the upper die base. Compared with the prior art, the utility model discloses a two-way die stamping die is with low costs and efficient.
Description
Technical Field
The utility model relates to the field of dies, especially, relate to a two-way die stamping die.
Background
The stamping die is a special technological equipment for processing metal or nonmetal into parts or semi-finished products in cold stamping processing, and is called cold stamping die, commonly called cold stamping die. Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.
In the prior art, a general stamping die comprises a male die and a female die, and the following problems can be caused after the stamping is carried out on a material with the thickness of more than 1.5 mm: bright strips and tearing strips exist on the cut surfaces, the smoothness of the cut surfaces is low, and the blanking collapse angle is larger after punching; the tolerance within +/-0.03 mm of the precision dimension can not meet the requirement, and the stamping of precision part products can not meet the requirement of the products, such as copper-based precision parts embedded in circuit boards and the like; after the molding, post-processing methods such as grinding, polishing, and computer numerical control (cnc) processing are usually used to meet the product requirements. The common punch press realizes that high-precision products need a multi-process stamping die to be subjected to stamping forming, the multi-process stamping die greatly increases die cost and process machining cost, the efficiency is low, and besides dimensional tolerance, the collapsed angle and the smoothness of a cut surface cannot meet the requirements after stamping.
Therefore, it is necessary to provide a new bi-directional die stamping die to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a two-way die stamping die with low costs and efficient.
In order to solve the technical problem, the utility model provides a two-way die stamping die, two-way die stamping die includes:
the lower die base comprises an accommodating space formed by inwards recessing the outer surface of the lower die base;
the elastic device is accommodated in the accommodating space;
the ejector plate is accommodated in the accommodating space, and the elastic device is clamped between the lower die base and the ejector plate;
the lower backing plate is stacked on one side, provided with the containing space, of the lower die base and abuts against the ejector plate;
the lower fixing plate is stacked on one side, away from the lower die base, of the lower backing plate;
the lower material returning module is arranged on one side, far away from the lower base plate, of the lower fixing plate and is arranged at an interval with the lower fixing plate;
the ejector rod penetrates through the lower fixing plate and the lower backing plate, and when the bidirectional female die stamping die is in a closed state, two opposite ends of the ejector rod are respectively abutted against the lower material returning module and the ejector plate; when the bidirectional female die stamping die is in an open state, one end of the ejector rod is abutted against the ejector plate, and the other end of the ejector rod is spaced from the lower material returning module;
the lower female die insert is detachably arranged on one side, far away from the lower fixing plate, of the lower material returning module;
the lower male die penetrates through the lower female die insert and the lower material returning module;
the lower male die spring is arranged on the lower base plate, and the lower male die is fixed on the lower base plate through the lower male die spring;
the upper die holder is spaced from the lower die holder and is arranged opposite to the lower die holder;
the upper material returning plate is stacked on one side, close to the lower material returning module, of the upper die base;
the upper concave die insert is detachably arranged on one side of the upper stripper plate close to the lower concave die insert;
the upper male die penetrates through the upper female die insert and the upper stripper plate;
the upper male die spring is arranged on the upper die base, and the upper male die is fixed on the upper die base through the upper male die spring;
the ejection pin penetrates through the upper material returning plate and is arranged at an interval with the upper female die insert, the ejection pin partially protrudes out of the upper material returning plate, and when the bidirectional female die stamping die is in a closed state, the part of the ejection pin protruding out of the upper material returning plate abuts against the lower material returning module;
the ejection pin spring is arranged on the upper die base, and the ejection pin is fixed on the upper die base through the ejection pin spring.
Preferably, the lower fixing plate comprises a first groove which is recessed from one side of the lower fixing plate close to the lower base plate to the direction close to the lower material returning module, the lower punch comprises a lower punch fixing part accommodated in the first groove and a lower punch main body part extending from the lower punch fixing part to the lower material returning module, and the lower punch main body part penetrates through the lower die insert and the lower material returning module; the lower punch fixing part is fixed on the lower backing plate through the lower punch spring, when the bidirectional female die stamping die is in an open state, the lower punch fixing part is spaced from the lower backing plate, and when the bidirectional female die stamping die is in a closed state, the lower punch fixing part is abutted to the lower backing plate.
Preferably, the upper die base comprises a second groove which is recessed from one side of the upper die base close to the upper stripper plate to the direction far away from the upper stripper plate, the upper punch comprises an upper punch fixing part accommodated in the second groove and an upper punch main body part extending from the upper punch fixing part to the upper stripper plate, and the upper punch main body part penetrates through the upper female die insert and the upper stripper plate; the upper male die fixing part is fixed on the upper die base through the upper male die spring.
Preferably, the bidirectional female die stamping die further comprises a middle ball guide post which sequentially penetrates through the upper material returning plate, the lower material returning die set, the lower fixing plate and the lower base plate.
Preferably, the bidirectional female die stamping die further comprises a limiting and piggybacking device mounted on one side, close to the lower material returning module, of the upper material returning plate, the limiting and piggybacking part protrudes out of the upper material returning plate, and when the bidirectional female die stamping die is in a closed state, the limiting and piggybacking part protruding out of the upper material returning plate abuts against the lower material returning module.
Preferably, said elastic means are made of polyurethane glue.
Compared with the prior art, the two-way female die stamping die has the advantages that through the matching arrangement of the lower male die, the lower female die insert, the upper male die and the upper male die insert, the formed product has small corner collapse, the peripheral corner collapse of the product is within 2% of the thickness of the material, and especially for precise post-processing parts, the processing amount and the raw material cost of the post-computer numerical control and other machining processes can be effectively reduced; the cut surfaces of the formed product are all bright surfaces without tearing tapes, and the requirements of the smoothness of the cut surface being less than 1.6mm and the flatness of the product can be effectively guaranteed on the premise of not performing post-processing on a high-precision stamping part, so that the production efficiency is greatly improved, and the post-processing cost is reduced; and utilize the utility model discloses a dimensional accuracy of the product of two-way die stamping die production improves a tolerance level at least, and the product dimensional accuracy after the punching press is within 0.03mm promptly.
Drawings
In order to make the content of the invention clearer, the drawings needed for describing the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the invention, and other drawings can be obtained by those skilled in the art without inventive effort, wherein:
fig. 1 is a schematic structural view of the two-way female die stamping die of the present invention in an open state;
fig. 2 is the structure schematic diagram of the closed state of the two-way female die stamping die of the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides a two-way die stamping die 100, it includes die holder 01, resilient means 02, liftout plate 22, lower bolster 03, bottom plate 05, material returned module 67 down, ejector pin 20, lower die mold insert 17, lower punch 19, lower punch spring 21, upper die base 12, go up material returned plate 08, go up die mold insert 10, go up the punch 15, go up the die spring 13, liftout round pin 09, liftout round pin spring 11, middle ball guide pillar 18 and spacing 16 incidentally.
The lower die base 01 comprises an accommodating space 1A formed by inwards recessing the outer surface of the lower die base 01.
The elastic device 02 is accommodated in the accommodating space 1A, and preferably, the elastic device 02 is made of polyurethane glue and can provide elastic restoring force for the lower male die 19.
The ejector plate 22 is accommodated in the accommodating space 1A, and the elastic device 02 is clamped between the lower die holder 01 and the ejector plate 22.
The lower backing plate 03 is stacked on one side of the lower die base 01 where the accommodating space 1A is arranged and abuts against the ejector plate 22.
The lower fixing plate 05 is arranged on one side, far away from the lower die base 01, of the lower backing plate 03 in a stacked mode.
The lower material returning module 67 is arranged on one side of the lower fixing plate 05 far away from the lower backing plate 03 and is arranged at an interval with the lower fixing plate 05; the lower material returning module 67 comprises a lower material returning plate base plate 06 arranged at an interval with the lower fixed plate 05 and a lower material returning plate 07 stacked on one side of the lower material returning plate base plate 06 far away from the lower fixed plate 05.
The ejector rod 20 penetrates through the lower fixing plate 05 and the lower backing plate 03, and when the bidirectional female die stamping die 100 is in a closed state, two opposite ends of the ejector rod 20 abut against the lower stripper plate backing plate 06 and the ejector plate 22 respectively; when the two-way die stamping die 100 is in an open state, one end of the ejector rod 20 abuts against the ejector plate 22, and the other end thereof is spaced from the lower stripper plate cushion plate 06, as shown in fig. 1, by a spacing distance of 0.74mm in this embodiment, but the spacing distance is not limited thereto, and is set according to actual conditions.
The lower concave die insert 17 is detachably arranged on one side, far away from the lower fixing plate 05, of the lower stripper plate 07.
The lower punch 19 penetrates through the lower die insert 17, the lower stripper plate cushion plate 06 and the lower stripper plate 07, the lower punch spring 21 is mounted on the lower cushion plate 03, and the lower punch 19 is fixed on the lower cushion plate 03 through the lower punch spring 21.
In this embodiment, specifically, the lower fixing plate 05 includes a first groove 5A recessed from a side of the lower fixing plate 05 close to the lower backing plate 03 to a direction close to the lower stripper plate pad 06, the lower punch 19 includes a lower punch fixing portion 191 accommodated in the first groove 5A and a lower punch main body portion 192 extending from the lower punch fixing portion 191 to the lower stripper module 67, and the lower punch main body portion 192 is disposed to penetrate through the lower die insert 17, the lower stripper plate pad 06, and the lower stripper plate 07; the lower punch fixing part 191 is fixed to the lower bolster 03 by the lower punch spring 21. When the two-way die stamping die 100 is in an open state, the lower punch fixing portion 191 is spaced from the lower backing plate 03, and when the two-way die stamping die 100 is in a closed state, the lower punch fixing portion 191 is abutted to the lower backing plate 03.
The upper die holder 12 and the lower die holder 01 are arranged at intervals and opposite to each other; the upper stripper plate 08 is stacked on one side of the upper die holder 11 close to the lower stripper plate 07; the upper female die insert 10 is detachably mounted on one side of the upper stripper plate 08 close to the lower female die insert 17.
In other words, in this embodiment, the upper female die insert 10 and the lower female die insert 17 are both detachably mounted in the two-way female die stamping die 100, and compared with a common die, the two-way female die stamping die 100 of this embodiment only needs to replace the upper female die insert 10 and the lower female die insert 17 when producing products with different sizes, and does not need to replace the whole die, thereby reducing the cost.
The upper male die 15 penetrates through the upper female die insert 10 and the upper stripper plate 08; the upper convex die spring 13 is installed on the upper die base 12, and the upper convex die 15 is fixed on the upper die base 12 through the upper convex die spring 13.
In this embodiment, specifically, the upper die holder 12 includes a second groove 12A recessed from a side of the upper die holder 12 close to the upper stripper plate 08 toward a direction away from the upper stripper plate 08, the upper punch 15 includes an upper punch fixing portion 14 housed in the second groove 12A and an upper punch main body portion 151 extending from the upper punch fixing portion 14 to the upper stripper plate 08, and the upper punch main body portion 151 is disposed through the upper die insert 10 and the upper stripper plate 08; the upper punch fixing part 14 is fixed to the upper die holder 12 by the upper punch spring 13. When the two-way die stamping die 100 is in an open state, the upper punch fixing part 14 abuts against the upper stripper plate 08, and when the two-way die stamping die 100 is in a closed state, the upper punch fixing part 14 is spaced from the upper stripper plate 08.
The ejector pin 09 penetrates through the upper stripper plate 08 and is arranged at a distance from the upper female die insert 10, part of the ejector pin 09 protrudes out of the upper stripper plate 08, and when the bidirectional female die stamping die 100 is in a closed state, the part of the ejector pin 09 protruding out of the upper stripper plate 08 abuts against the lower stripper plate 07. The liftout pin spring 11 is installed in the upper die base 12, and the liftout pin 09 is fixed to the upper die base 12 through the liftout pin spring 11.
The middle ball guide post 18 sequentially penetrates through the upper stripper plate 08, the lower stripper plate 07, the lower stripper plate cushion plate 06, the lower fixing plate 05 and the lower cushion plate 03, namely, the structure of the middle ball guide post 18 is increased, so that the bidirectional female die stamping die 100 can accurately guide in the whole stamping process, and the working efficiency of the bidirectional female die stamping die 100 and the stamping product precision are higher.
The limiting piggyback 16 is arranged on one side, close to the lower stripper plate 07, of the upper stripper plate 08, part of the limiting piggyback 16 protrudes out of the upper stripper plate 08, and when the bidirectional female die stamping die 100 is in a closed state, the part, protruding out of the upper stripper plate 08, of the limiting piggyback 16 abuts against the lower stripper plate 07 to play a limiting role.
In this embodiment, the bidirectional female die stamping die 100 further includes a material returning spring 04 for connecting the lower fixing plate 05 and the lower material returning plate backing plate 06.
The utility model discloses a two-way die stamping die 100 can produce at ordinary punch press, need not professional equipment such as double acting punch press, two jar hydraulic press etc.. Referring to fig. 2, a punching process for producing the bi-directional cavity die 100 of the present embodiment will be described. Firstly, a blank to be processed is placed on the lower female die insert 17, the press machine moves downwards, the ejector pin 09 is firstly contacted with the lower stripper plate 07, and as the elasticity of the ejector pin 09 is greater than that of the lower stripper plate 07, the lower stripper plate 07 and the lower stripper plate backing plate 06 move downwards and the lower stripper plate backing plate 06 is contacted with the ejector rod 20. The elastic device 02 gives the ejector rod 20 elastic force and transmits the elastic force to the lower stripper plate cushion plate 06, the lower stripper plate 07 and the ejector pin 09 in sequence, the ejector pin 09 contracts, and meanwhile, the blank is pressed into the upper female die insert 10 and the lower female die insert 17. The double-concave die is adopted, and the double-concave die extrudes the blank in two directions under the action of a press machine and extrudes the blank into the double-concave die. The press continues to move downward so that the elastic device 2 starts to be compressed, the lower punch fixing portion 191 abuts against the lower bolster 03, the lower punch 19 completely presses the blank into the upper die insert 10, the upper punch 15 contracts upward, the press reaches a dead point, and the downward movement is finished. The press starts to return, the upper punch spring 13 gives elasticity to the upper punch 15, and the upper punch 15 ejects the blank which is punched out from the upper die insert 10. The stripper plate 07 does not move upwards together with the press under the action of the ejector pin 19, and the blank can be prevented from being pressed into the rim charge again, so that the smoothness of the cut surface of the product is ensured, the fracture and the quality of the product are improved, the secondary separation of the product and the rim charge is avoided, and the production efficiency is improved. The press continues up to top dead center and one stroke ends.
Namely, in the whole process, the upper punch 15 and the lower punch 19 are both in a movable punch structure, namely a double-movable punch structure, and can generate a bidirectional continuous pressing state by being respectively matched with the upper stripper plate 08 and the lower stripper plate 07, so that the product is smoother. Because the elastic device 02 is made of polyurethane rubber, when the press is pressed down, the polyurethane rubber generates strong pressure at first, so that the blank is pressed into the double female die to reach the designed depth, the whole two-way female die stamping die 100 continues to move downwards, and the double-movable male die structure breaks the rim charge.
Further, in the above-mentioned punching process, it can be seen that, in the bidirectional female die stamping die 100 of the present embodiment, the blank is always subjected to the three-way pressing force in the whole stamping process, which is different from the ordinary punching, and the cross section of the product has no bright band and rough features, but is a completely smooth cross section. The product processed by the bidirectional die opposite punching technology has smaller collapsed angle and high dimensional precision compared with the common punching technology.
Compared with the prior art, the two-way female die stamping die has the advantages that through the matching arrangement of the lower male die, the lower female die insert, the upper male die and the upper male die insert, the formed product has small corner collapse, the peripheral corner collapse of the product is within 2% of the thickness of the material, and especially for precise post-processing parts, the processing amount and the raw material cost of the post-computer numerical control and other machining processes can be effectively reduced; the cut surfaces of the formed product are all bright surfaces without tearing tapes, and the requirements of the smoothness of the cut surface being less than 1.6mm and the flatness of the product can be effectively guaranteed on the premise of not performing post-processing on a high-precision stamping part, so that the production efficiency is greatly improved, and the post-processing cost is reduced; and utilize the utility model discloses a dimensional accuracy of the product of two-way die stamping die production improves a tolerance level at least, and the product dimensional accuracy after the punching press is within 0.03mm promptly.
The above examples are only for clearly illustrating the present invention and are not to be construed as limiting the embodiments; the scope of the present invention includes, but is not limited to, the above embodiments, and all equivalent changes made by the shape and structure according to the present invention are included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a two-way die stamping die which characterized in that, two-way die stamping die includes:
the lower die base comprises an accommodating space formed by inwards recessing the outer surface of the lower die base;
the elastic device is accommodated in the accommodating space;
the ejector plate is accommodated in the accommodating space, and the elastic device is clamped between the lower die base and the ejector plate;
the lower backing plate is stacked on one side, provided with the containing space, of the lower die base and abuts against the ejector plate;
the lower fixing plate is stacked on one side, away from the lower die base, of the lower backing plate;
the lower material returning module is arranged on one side, far away from the lower base plate, of the lower fixing plate and is arranged at an interval with the lower fixing plate;
the ejector rod penetrates through the lower fixing plate and the lower backing plate, and when the bidirectional female die stamping die is in a closed state, two opposite ends of the ejector rod are respectively abutted against the lower material returning module and the ejector plate; when the bidirectional female die stamping die is in an open state, one end of the ejector rod is abutted against the ejector plate, and the other end of the ejector rod is spaced from the lower material returning module;
the lower female die insert is detachably arranged on one side, far away from the lower fixing plate, of the lower material returning module;
the lower male die penetrates through the lower female die insert and the lower material returning module;
the lower male die spring is arranged on the lower base plate, and the lower male die is fixed on the lower base plate through the lower male die spring;
the upper die holder is spaced from the lower die holder and is arranged opposite to the lower die holder;
the upper material returning plate is stacked on one side, close to the lower material returning module, of the upper die base;
the upper concave die insert is detachably arranged on one side of the upper stripper plate close to the lower concave die insert;
the upper male die penetrates through the upper female die insert and the upper stripper plate;
the upper male die spring is arranged on the upper die base, and the upper male die is fixed on the upper die base through the upper male die spring;
the ejection pin penetrates through the upper material returning plate and is arranged at an interval with the upper female die insert, the ejection pin partially protrudes out of the upper material returning plate, and when the bidirectional female die stamping die is in a closed state, the part of the ejection pin protruding out of the upper material returning plate abuts against the lower material returning module;
the ejection pin spring is arranged on the upper die base, and the ejection pin is fixed on the upper die base through the ejection pin spring.
2. The bi-directional cavity die stamping die of claim 1, wherein the lower retainer plate includes a first recess recessed from a side of the lower retainer plate adjacent to the lower backing plate toward a side adjacent to the lower stripper module, the lower punch includes a lower punch retainer portion received in the first recess and a lower punch body portion extending from the lower punch retainer portion toward the lower stripper module, the lower punch body portion disposed through the lower die insert and the lower stripper module; the lower punch fixing part is fixed on the lower backing plate through the lower punch spring, when the bidirectional female die stamping die is in an open state, the lower punch fixing part is spaced from the lower backing plate, and when the bidirectional female die stamping die is in a closed state, the lower punch fixing part is abutted to the lower backing plate.
3. The bi-directional cavity die stamping die according to claim 1, wherein the upper die base includes a second groove recessed from a side of the upper die base close to the upper stripper plate toward a direction away from the upper stripper plate, the upper punch includes an upper punch fixing portion received in the second groove and an upper punch main body portion extending from the upper punch fixing portion toward the upper stripper plate, and the upper punch main body portion is disposed through the upper die insert and the upper stripper plate; the upper male die fixing part is fixed on the upper die base through the upper male die spring, when the bidirectional female die stamping die is in an open state, the upper male die fixing part is abutted to the upper stripper plate, and when the bidirectional female die stamping die is in a closed state, the upper male die fixing part is spaced from the upper stripper plate.
4. The bi-directional cavity die stamping die of claim 1, further comprising an intermediate ball guide post disposed through the upper stripper plate, the lower stripper die set, the lower stationary plate, and the lower backing plate in sequence.
5. The bi-directional cavity die stamping die according to claim 1, further comprising a limit-limiting flange mounted on a side of the upper stripper plate adjacent to the lower stripper plate, wherein the limit-limiting flange protrudes from the upper stripper plate, and when the bi-directional cavity die stamping die is in a closed state, a portion of the limit-limiting flange protruding from the upper stripper plate abuts against the lower stripper plate.
6. The bi-directional cavity die stamping die of claim 1, wherein the resilient means is made of polyurethane glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021529525.1U CN213436624U (en) | 2020-07-29 | 2020-07-29 | Bidirectional female die stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021529525.1U CN213436624U (en) | 2020-07-29 | 2020-07-29 | Bidirectional female die stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213436624U true CN213436624U (en) | 2021-06-15 |
Family
ID=76307169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021529525.1U Expired - Fee Related CN213436624U (en) | 2020-07-29 | 2020-07-29 | Bidirectional female die stamping die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213436624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583472A (en) * | 2023-10-17 | 2024-02-23 | 无锡曙光精密工业有限公司 | Inserted block type stamping die and process for half-shell stamping forming part |
-
2020
- 2020-07-29 CN CN202021529525.1U patent/CN213436624U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583472A (en) * | 2023-10-17 | 2024-02-23 | 无锡曙光精密工业有限公司 | Inserted block type stamping die and process for half-shell stamping forming part |
| CN117583472B (en) * | 2023-10-17 | 2024-04-26 | 无锡曙光精密工业有限公司 | Inserted block type stamping die and process for half-shell stamping forming part |
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