Punch forming die

Abstract

The utility model discloses a punch forming die which is used for conducting two-way piercing and punching on a product. The punch forming die comprises an upper die assembly and a lower die assembly. The upper die assembly comprises an upper die pressing block and a first forming piece arranged on the upper die pressing block in a protruding mode, the first forming piece comprises a plurality of first sub-forming pieces and a plurality of second sub-forming pieces, the first sub-forming pieces are provided with first protruding parts, and the second sub-forming pieces are provided with second concave parts. And the first convex part, the first concave part and the second concave part are staggered and closely distributed. The lower die assembly comprises a lower die pressing block and a second forming piece arranged on the lower die pressing block in a protruding mode, the second forming piece comprises a plurality of third sub-forming pieces and a plurality of fourth sub-forming pieces, each third sub-forming piece is provided with a first concave part, each fourth sub-forming piece is provided with a second protruding part, and the first concave parts and the second protruding parts are arranged in a staggered and tightly attached mode. By means of the arrangement, bi-directional synchronous puncturing and stamping are conducted on the product, and the yield of the product is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a stamping molding mold. Background Art

[0002] With the development of the industry, the structure of stamping products has become more and more diversified, and the structure of stamping terminal products has become more complex and demanding. The hinged two-way piercing and bending structure is one of them. At present, it is divided into two steps: upward piercing and bending and downward piercing and bending. This structure is relatively simple to make and easy to process. However, in the first piercing step, there is an unbalanced state where some materials are stressed and some are not, which will cause the material to be twisted, uneven and wrinkled, and will also affect the position accuracy in the second step of downward piercing.

[0003] Therefore, it is necessary to provide a stamping die to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a stamping forming die, which can perform two-way synchronous puncture and stamping on products, thereby improving the yield rate of products.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stamping die is used for bidirectional puncture stamping of a product, comprising:

[0007] An upper mold assembly comprises an upper mold block and a first molded part protruding from the upper mold block, wherein the first molded part comprises a plurality of first sub-molding parts and a plurality of second sub-molding parts, wherein the first sub-molding part and the second sub-molding parts have a first protruding part at a contact end with the product, and a second concave part at a contact end with the product, wherein the first protruding part and the second concave part are staggered and closely arranged;

[0008] A lower mold assembly includes a lower mold block and a second molded part protruding from the lower mold block, the second molded part includes a plurality of third sub-molding parts and a plurality of fourth sub-molding parts, the third sub-molding parts and the fourth sub-molding parts, the third sub-molding parts are provided with a first recessed part at the contact end with the product, the fourth sub-molding parts are provided with a second protruding part at the contact end with the product, and the first recessed part and the second protruding part are staggered and closely arranged;

[0009] The first protrusion and the first recess are arranged correspondingly up and down, and the first protrusion and the first recess are matched; the second recess and the second protrusion are arranged correspondingly up and down, and the second recess is matched with the second protrusion.

[0010] Furthermore, the first protrusion and the second protrusion are in arc shape, cone shape or square shape.

[0011] Furthermore, the upper mold block is provided with a first insert hole, the shape of which matches the shape of the first molding part, and the first molding part is inserted into the first insert hole; the lower mold block is provided with a second insert hole, the shape of which matches the shape of the second molding part, and the second molding part is inserted into the second insert hole.

[0012] Furthermore, the first sub-molding component further includes a first fixing portion disposed opposite to the first protruding portion, and the second sub-molding component further includes a second fixing portion disposed opposite to the second recessed portion, and the first fixing portion and the second fixing portion are alternately and closely disposed in the first insert hole;

[0013] The third sub-molding component further includes a third fixing portion disposed opposite to the first recessed portion, and the fourth sub-molding component further includes a fourth fixing portion disposed opposite to the second protruding portion. The third fixing portion and the fourth fixing portion are alternately and closely disposed in the second insert hole.

[0014] Further, the first insert hole has a first insert groove and a second insert groove, the first insert groove and the second insert groove are arranged alternately, the first fixing portion is arranged in the first insert groove, and the second fixing portion is arranged in the second insert groove;

[0015] The second insert hole has a third insert groove and a fourth insert groove, the third insert groove and the fourth insert groove are arranged alternately, the third fixing portion is arranged in the third insert groove, and the fourth fixing portion is arranged in the fourth insert groove.

[0016] Furthermore, the upper mold assembly also includes an upper pressure float block, the first molding piece penetrates the upper pressure float block, the lower mold assembly includes a lower pressure float block, the second molding piece penetrates the lower pressure float block, and a accommodating position for the product is formed between the upper pressure float block and the lower pressure float block.

[0017] Furthermore, the stamping die also includes a stopper arranged beside the accommodating position.

[0018] Furthermore, the upper mold assembly also includes an upper ring seat, and the lower mold assembly also includes a lower ring seat. The upper pressure material floating block and the upper mold pressure block are embedded in the upper ring seat, and the lower pressure material floating block and the lower mold pressure block are embedded in the lower ring seat. The stop block is arranged between the upper ring seat and the lower ring seat, and the upper ring seat has an annular groove. When the upper ring seat and the upper ring seat move toward each other synchronously, the stop block is located in the annular groove.

[0019] Furthermore, a step portion is provided around the bottom of the upper pressure material floating block, and when the upper pressure material floating block and the lower pressure material floating block move toward each other until the product is clamped, the upper pressure material floating block can abut against the stopper.

[0020] Furthermore, the upper mold assembly also includes an upper mold fixing seat, which is connected to the top of the upper pressure material floating block through an upper force transmission pin, an upper spring is arranged between the upper mold fixing seat and the upper force transmission pin, and the upper force transmission pin passes through the upper mold pressure block; the lower mold assembly also includes a lower mold fixing seat, which is connected to the bottom of the lower pressure material floating block through a lower force transmission pin, a lower spring is arranged between the lower mold fixing seat and the lower force transmission pin, and the lower force transmission pin passes through the lower mold pressure block, and the upper spring is the same as the lower spring.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The stamping die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die block and a first molding member protruding from the upper die block, wherein the first molding member comprises a plurality of first sub-molding members and a plurality of second sub-molding members, wherein the first sub-molding member is provided with a first protruding portion, and the second sub-molding member is provided with a second recessed portion, wherein the first protruding portion and the second recessed portion are staggered and closely arranged. The lower die assembly comprises a lower die block and a second molding member protruding from the lower die block, wherein the second molding member comprises a plurality of third sub-molding members and a plurality of fourth sub-molding members. The third sub-molding member is provided with a first recessed portion, and the fourth sub-molding member is provided with a second protruding portion, wherein the first recessed portion and the second protruding portion are staggered and closely arranged. By arranging the first protruding portion and the first recessed portion correspondingly up and down, the first protruding portion matches the first recessed portion, and the second recessed portion and the second protruding portion correspondingly up and down, and the second recessed portion matches the second protruding portion. The product is subjected to synchronous puncture and stamping from top to bottom, thereby improving the yield rate of product stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the punching and forming die of the utility model;

[0024] Figure 2 yes Figure 1 A top view of

[0025] Figure 3 yes Figure 2 Schematic diagram of the cross section along AA;

[0026] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part B;

[0027] Figure 5It is a cross-sectional schematic diagram of the upper die assembly and the lower die assembly in the stamping forming die of the utility model when they move toward each other and are close to each other;

[0028] Figure 6 yes Figure 5 A partial enlarged schematic diagram of part C in the middle;

[0029] Figure 7 It is a cross-sectional schematic diagram of the first molded part and the second molded part in the stamping mold of the utility model after the product is punctured and stamped;

[0030] Figure 8 yes Figure 7 A partial enlarged schematic diagram of part D in the middle;

[0031] Fig. 9 It is a three-dimensional exploded schematic diagram of the lower die pressing block, the lower pressing material floating block and the lower ring seat in the utility model;

[0032] Fig.10 It is a three-dimensional exploded schematic diagram of the upper mold block, the first molded part, the upper pressure material floating block, the lower mold block, the second molded part and the lower pressure material floating block in the utility model;

[0033] Fig.11 Fig.10 A three-dimensional schematic diagram from another angle;

[0034] Fig.12 It is a three-dimensional schematic diagram of the lower die assembly and the stopper of the utility model;

[0035] Fig.13 yes Fig.12 A front view of

[0036] Fig.14 It is a three-dimensional schematic diagram of the upper ring seat in the utility model;

[0037] Fig.15 yes Figure 2 Schematic diagram of the cross section along EE;

[0038] Fig.16 It is a three-dimensional schematic diagram of the upper mold assembly and the lower mold assembly in the utility model;

[0039] Fig.17 It is a three-dimensional schematic diagram of the first molded part in the utility model;

[0040] Fig.18 It is a three-dimensional schematic diagram of the second molded part in the utility model;

[0041] Fig.19 It is a three-dimensional schematic diagram of the first molded part and the second molded part in the utility model;

[0042] Fig. 20It is a top view of the upper molded block in the utility model;

[0043] Fig.21 It is a top view of the lower molded block in the utility model;

[0044] Fig. 22 The product is obtained after being processed by the punching and forming die of the utility model.

[0045] Description of reference numerals:

[0046] 100. Stamping die;

[0047] 10. Products;

[0048] 1. Upper die assembly; 11. Upper die pressing block; 104. First insert hole; 111. First protruding block; 105. First insert groove; 112. Second protruding block; 106. Second insert groove; 12. First molding part; 121. First sub-molding part; 1211. First protruding part; 1212. First main body; 1213. First fixing part; 122. Second sub-molding part; 1221. Second recessed part; 1222. Second main body; 1223. Second fixing part; 13. Upper pressing material floating block; 101. First through hole; 131. Step part; 14. Upper ring seat; 102. First mounting hole; 103. Ring groove; 15. Upper die fixing seat; 16. Upload pin; 17. Upper spring; 1001. Accommodation position;

[0049] 2. Lower die assembly; 21. Lower die pressing block; 203. Second insert hole; 211. Third protruding block; 204. Third insert groove; 212. Fourth protruding block; 205. Fourth insert groove; 22. Second molding piece; 221. Third sub-molding piece; 2211. First recessed portion; 2212. Third main body; 2213. Third fixing portion; 222. Fourth sub-molding piece; 2221. Second protruding portion; 2222. Fourth main body; 2223. Fourth fixing portion; 23. Lower pressing material floating block; 201. Second through hole; 24. Lower ring seat; 202. Second mounting hole; 25. Lower die fixing seat; 26. Lower force transmission pin; 27. Lower spring;

[0050] 3. Stopper; 31. First stopper; 311. First base; 312. First abutting portion; 32. Second stopper; 321. Second base; 322. Second abutting portion; 301. Accommodating space; 302. Opening. DETAILED DESCRIPTION

[0051] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present invention and are recorded in the claims of the present invention.

[0052] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0053] Please refer to Figures 1 to 22 The utility model discloses a stamping die 100 for bidirectional puncturing and stamping a product 10. The stamping die 100 includes an upper die assembly 1 and a lower die assembly 2. For the convenience of explanation, the following definitions are made: Figure 3 The first direction D1-D1 shown is a height direction, the second direction D2-D2 is a left-right direction, and the third direction D3-D3 is a front-back direction. The first direction D1-D1, the second direction D2-D2, and the third direction D3-D3 are perpendicular to each other.

[0054] Please refer to Fig. 22 The upper mold assembly 1 and the lower mold assembly 2 move toward each other along the first direction D1-D1, so that upwardly protruding and downwardly protruding bending structures are formed on the upper and lower surfaces of the product 10, and the adjacent upwardly protruding and downwardly protruding bending structures are punctured and sheared, so that the product 10 is processed into a hinged two-way punctured bending structure.

[0055] Please refer to Figure 4 The upper mold assembly 1 includes an upper mold block 11 and a first molded part 12 protruding from the upper mold block 11, and the lower mold assembly 2 includes a lower mold block 21 and a second molded part 22 protruding from the lower mold block 21. The first molded part 12 and the second molded part 22 are respectively located on the upper and lower sides of the product 10. When the upper mold block 11 and the upper and lower mold blocks 21 move toward each other along the first direction D1-D1, the first molded part 12 and the second molded part 22 are driven to move toward each other synchronously, so as to puncture and stamp the upper and lower sides of the product 10 synchronously, so as to improve the production efficiency and yield rate of the product 10.

[0056] Please refer to Figures 3 to 11 ,as well as Figure 11 to Figure 12The upper mold assembly 1 further includes an upper pressing material float 13, the first molding piece 12 penetrates the upper pressing material float 13, the lower mold assembly 2 further includes a lower pressing material float 23, the second molding piece 22 penetrates the lower pressing material float 23, and a accommodating position 1001 for the product 10 is formed between the upper pressing material float 13 and the lower pressing material float 23. Specifically, the upper pressing material float 13 is arranged below the upper mold block 11 along the first direction D1-D1, and the lower pressing material float 23 is arranged above the lower mold block 21 along the first direction D1-D1. The upper pressing material float 13 and the lower pressing material float 23 are arranged face to face. The upper pressing material float 13 has a first through hole 101 at the center, the first molding piece 12 passes through the first through hole 101, and the lower pressing material float 23 has a second through hole 201 at the center, and the second molding piece 22 passes through the second through hole 201. Before the product 10 is punctured and punched, the first molded part 12 is located in the upper pressing material float 13, and the second molded part 22 is located in the lower pressing material float 23. During the puncture and punching process of the product 10, the upper mold block 11 and the lower mold block 21 are driven by the driving mechanism to move toward each other, thereby driving the upper pressing material float 13 and the lower pressing material float 23 to move toward each other synchronously. During the process of the two moving toward each other, the gap of the accommodating position 1001 gradually decreases until the upper pressing material float 13 and the lower pressing material float 23 are respectively close to the upper and lower surfaces of the product 10. At this time, the driving mechanism continues to drive the upper mold block 11 and the lower mold block 21 to move toward each other, the first molded part 12 protrudes from the upper pressing material float 13, and the second molded part 22 protrudes from the lower pressing material float 23, so that the first molded part 12 and the second molded part 22 can puncture and punch the product 10 synchronously on the upper and lower sides.

[0057] Please refer to Figures 3 to 8 , Figure 12 to Figure 13, the stamping die 100 also includes a stopper 3 disposed beside the accommodating position 1001. The upper die assembly 1 also includes an upper ring seat 14, and the lower die assembly 2 also includes a lower ring seat 24. The upper pressing material float 13 and the upper die block 11 are embedded in the upper ring seat 14, the lower pressing material float 23 and the lower die block 21 are embedded in the lower ring seat 24, and the stopper 3 is disposed between the upper ring seat 14 and the lower ring seat 24. Specifically, the upper ring seat 14 has a first mounting hole 102, and the upper pressing material float 13 and the upper die block 11 are disposed in the first mounting hole 102. The lower ring seat 24 has a second mounting hole 202, and the lower pressing material float 23 and the lower die block 21 are disposed in the second mounting hole 202, and the stopper 3 is disposed at the top of the lower ring seat 24. Specifically, the stopper 3 includes a first stopper 31 and a second stopper 32, and the first stopper 31 and the second stopper 32 are respectively arranged on both sides of the second mounting hole 202 along the second direction D2-D2. At least a portion of the first stopper 31 and at least a portion of the second stopper 32 abut against both sides of the lower pressing material float 23, so that the lower pressing material float 23 and the lower mold block 21 are restricted in the second mounting hole 202. The first stopper 31, the second stopper 32 and the top wall of the lower pressing material float 23 form a receiving space 301, and the receiving space 301 is communicated with the accommodating position 1001, and the product 10 is arranged in the receiving space 301. In this embodiment, the first stopper 31 includes a first base 311 and a first abutting portion 312 disposed on one side of the first base 311, and the second stopper 32 includes a second base 321 and a second abutting portion 322 disposed on one side of the second base 321, and the first abutting portion 312 and the second abutting portion 322 are disposed opposite to each other. When the product 10 is placed in the receiving space 301 and punctured and punched, the first abutting portion 312 and the second abutting portion 322 abut against the product 10 respectively, so that the product 10 is not easily ejected and bounced during puncture and punching, thereby improving the yield rate of the product 10.

[0058] Please refer to Fig.14 The bottom of the upper ring seat 14 has an annular groove 103, and the annular groove 103 is arranged on the inner wall of the first mounting hole 102. When the upper ring seat 14 and the lower ring seat 14 move synchronously toward each other, the stopper 3 is located in the annular groove 103 to make way for the stopper 3, so that the upper ring seat 14 and the lower ring seat 24 can fit tightly.

[0059] Please refer to Figures 3 to 13, a step portion 131 is provided around the bottom of the upper pressure material float 13, and when the upper pressure material float 13 and the lower pressure material float 23 move toward each other until the product 10 is clamped, the upper pressure material float 13 can abut against the stopper 3. Specifically, an opening 302 is provided between the first abutting portion 312 of the first stopper 31 and the second abutting portion 322 of the second stopper 32, and the upper and lower sides of the opening 302 are respectively connected to the accommodating position 1001 and the receiving space 301. By providing the step portion 131 on the upper pressure material float 13, when the upper pressure material float 13 and the lower pressure material float 23 move toward each other, the step portion 131 of the upper pressure material float 13 sequentially passes through the accommodating position 1001 and the opening 302 to enter the receiving space 301 until the bottom of the step portion 131 and the top of the lower pressure material float 23 clamp the upper and lower surfaces of the product 10 respectively. Such a configuration can make the overall structure of the upper mold assembly 1 and the lower mold assembly 2 more compact.

[0060] Please refer to Figure 15 to Figure 16 The upper die assembly 1 further includes an upper die fixing seat 15, which is connected to the top of the upper material pressing float 13 through an upper force transmission pin 16, and the upper die pressing block 11 abuts against the upper die fixing seat 15. An upper spring 17 is arranged between the upper die fixing seat 15 and the force transmission pin 16, and the force transmission pin 16 penetrates the upper die pressing block 11. The lower die assembly 2 further includes a lower die fixing seat 25, which is connected to the bottom of the lower material pressing float 23 through a lower force transmission pin 26, and the lower die fixing seat 25 abuts against the lower die pressing block 21. A lower spring 27 is arranged between the lower die fixing seat 25 and the lower force transmission pin 26, and the lower force transmission pin 26 penetrates the lower die pressing block 21, and the upper spring 17 is the same as the lower spring 27. In this embodiment, there are four force transmission pins 16 and four upper springs 17, and the four force transmission pins 16 are respectively arranged at the four top corners of the upper material pressing float 13, so that the elastic force on the upper material pressing float 13 can be balanced. There are four lower force transmission pins 26 and four lower springs 27, and the four lower force transmission pins 26 are respectively arranged at the four apex corners of the lower material pressing float 23, so that the elastic force on the lower material pressing float 23 can be balanced. It is worth noting that the elastic forces of the four upper springs 17 and the four lower springs 27 must be the same, so as to ensure that when the upper mold assembly 1 and the lower mold assembly 2 move toward each other, the upper mold block 11 and the lower mold block 21 are subjected to the same elastic force, so that the first molded part 12 and the second molded part 22 can achieve synchronous shearing and bending of the product 10.

[0061] Please refer to Figures 3 to 11 , Figures 17 to 19The first molded part 12 includes a plurality of first sub-molding parts 121 and a plurality of second sub-molding parts 122. The first sub-molding part 121 is provided with a first protruding part 1211 at the contact end with the product 10, and the second sub-molding part 122 is provided with a second recessed part 1221 at the contact end with the product 10. The first protruding part 1211 and the second recessed part 1221 are staggered and arranged closely. The second molded part 22 includes a plurality of third sub-molding parts 221 and a plurality of fourth sub-molding parts 222. The third sub-molding part 221 is provided with a first recessed part 2211 at the contact end with the product 10, and the fourth sub-molding part is provided with a second protruding part 2221 at the contact end with the product 10. The first recessed part 2211 and the second protruding part 2221 are staggered and arranged closely. The first protruding part 1211 and the first recessed part 2211 are arranged correspondingly up and down, and the first protruding part 1211 and the first recessed part 2211 are matched. The second recessed portion 1221 and the second protruding portion 2221 are arranged in correspondence with each other, and the second recessed portion 1221 and the second protruding portion 2221 are matched. When the upper die block 11 and the lower die block 21 move toward each other synchronously, by arranging the first protruding portion 1211 and the first recessed portion 2211 in correspondence with each other, and by arranging the second recessed portion 1221 and the second protruding portion 2221 in correspondence with each other, the upper and lower sides of the product 10 can be stamped synchronously. At the same time, by staggering and closely arranging the first protruding portion 1211 and the second recessed portion 1221, and staggering and closely arranging the first recessed portion 2211 and the second protruding portion 2221, the product 10 can be sheared synchronously during the stamping process. The surface flatness of the product 10 is improved, and the yield rate of the product 10 is also improved.

[0062] In another embodiment, the first molded part 12 includes a plurality of first sub-molding parts 121, the plurality of first sub-molding parts 121 are closely arranged, and the first sub-molding part 121 includes a first protrusion 1211. The second molded part 22 includes a plurality of third sub-molding parts 221, the plurality of third sub-molding parts 221 are closely arranged, and the third sub-molding part 221 includes a first recessed part 2211, and the first protrusion 1211 cooperates with the first recessed part 2211. When the upper mold block 11 and the lower mold block 21 move synchronously toward each other, the first sub-molding part 121 cooperates with the third sub-molding part 221 to puncture and stamp the product 10 from top to bottom.

[0063] In the third embodiment, the first molded part 12 includes a plurality of second sub-molding parts 122, the plurality of second sub-molding parts 122 are closely arranged, and the second sub-molding parts 122 include a second recessed portion 1221. The second molded part 22 includes a plurality of fourth sub-molding parts 222, the plurality of fourth sub-molding parts 222 are closely arranged, and the fourth sub-molding parts 222 include a second protruding portion 2221, and the second recessed portion 1221 cooperates with the second protruding portion 2221. When the upper mold block 11 and the lower mold block 21 move synchronously toward each other, the second sub-molding part 122 cooperates with the fourth sub-molding part 222 to extrude the product 10 from bottom to top.

[0064] Preferably, the first protrusion 1211 and the second protrusion 2221 are in an arc shape. In other embodiments, the first protrusion 1211 and the second protrusion 2221 are in a conical shape or a direction. Regardless of the shapes of the first protrusion 1211 and the second protrusion 2221, the first protrusion 1211 cooperates with the first recessed portion 2211, and the second protrusion 2221 cooperates with the second recessed portion 1221, so that the product 10 can be punctured and stamped synchronously from top to bottom.

[0065] Please refer to Figure 20 to Figure 21 In the first embodiment, the first sub-molding part 121 has the same structure as the fourth sub-molding part 222, and the second sub-molding part 122 has the same structure as the third sub-molding part 221. Specifically, the upper mold block 11 is provided with a first insert hole 104, the shape of the first insert hole 104 matches the shape of the first molding part 12, and the first molding part 12 is inserted into the first insert hole 104. Specifically, the first insert hole 104 has a first insert groove 105 and a second insert groove 106, and the first insert groove 105 and the second insert groove 106 are arranged alternately. The first insert hole 104 has a first surface and a second surface on both sides along the second direction D2-D2, two first protruding blocks 111 are provided on the first surface and three second protruding blocks 112 are provided on the second surface, the first protruding blocks 111 and the second protruding blocks 112 are arranged alternately, the two first protruding blocks 111 divide the first insert hole 104 into three first insert grooves 105, the three second protruding blocks 112 divide the first insert hole 104 into two second insert grooves 106, the three first insert grooves 105 are connected with the two second insert grooves 106, and the three first insert grooves 105 and the two second insert grooves 106 are arranged one left and one right along the second direction D2-D2. The first sub-molding 121 is inserted into the second insert groove 106, and the first protruding block 111 abuts against the first sub-molding 121; the second sub-molding 122 is inserted into the first insert groove 105, and the second protruding block 112 abuts against the second sub-molding 122. In this way, the first sub-molding component 121 and the second sub-molding component 122 can be accurately positioned in the first insert hole 104 .

[0066] Please refer to Fig.17 , Fig.19 as well as Fig. 20 The first sub-molding member 121 further includes a first fixing portion 1213 disposed opposite to the first protruding portion 1211 and a first main body portion 1212 disposed between the first fixing portion 1213 and the first protruding portion 1211. The second sub-molding member 122 further includes a second fixing portion 1223 disposed opposite to the second recessed portion 1221 and a second main body portion 1222 disposed between the second fixing portion 1223 and the second recessed portion 1221. The first fixing portion 1213 and the second fixing portion 1223 are arranged alternately and closely in the first insert hole 104. Specifically, after the first sub-molding member 121 and the second sub-molding member 122 are arranged alternately and closely and inserted into the first insert hole 104, the first fixing portion 1213 is inserted into the second insert groove 106, and the second fixing portion 1223 is inserted into the first insert groove 105. The first fixing portion 1213 and the second fixing portion 1223 are arranged alternately along the second direction D2-D2 to reduce the accumulated tolerance of the first sub-molding part 121 and the second sub-molding part 122 during the assembly process, thereby improving the position accuracy of the stamping. At the same time, after the first fixing portion 1213 is inserted into the second insert groove 106 and the second fixing portion 1223 is inserted into the first insert groove 105, the first fixing portion 1213 and the second fixing portion 1223 can abut against the upper mold fixing seat 15 to maintain the position of the first sub-molding part 121 and the second sub-molding part 122 in the upper mold block 11. Avoid displacement of the first sub-molding part 121 and the second sub-molding part 122 in the first insert hole 104, thereby affecting the stamping accuracy.

[0067] Please refer to Fig.18 , Fig.19 as well as Fig.21The lower mold block 21 is provided with a second insert hole 203, the shape of the second insert hole 203 matches the second molding part 22, and the second molding part 22 is inserted into the second insert hole 203. Specifically, the second insert hole 203 has a third insert groove 204 and a fourth insert groove 205, and the third insert groove 204 and the fourth insert groove 205 are arranged alternately. The second insert hole 203 has a third surface and a fourth surface on both sides along the second direction D2-D2, two third protruding blocks 211 are provided on the third surface and three fourth protruding blocks 212 are provided on the fourth surface, the third protruding blocks 211 and the fourth protruding blocks 212 are arranged alternately, the two third protruding blocks 211 divide the second insert hole 203 into three third insert grooves 204, the three fourth protruding blocks 212 divide the second insert hole 203 into two fourth insert grooves 205, the three third insert grooves 204 are connected with the two fourth insert grooves 205, and the three third insert grooves 204 and the two fourth insert grooves 205 are arranged alternately along the second direction D2-D2. The third sub-molding 221 is inserted into the fourth insert groove 205, the third protruding block 211 abuts against the third sub-molding 221; the fourth sub-molding 222 is inserted into the third insert groove 204, and the fourth protruding block 212 abuts against the fourth sub-molding 222. In this way, the third sub-molding component 221 and the fourth sub-molding component 222 can be accurately positioned in the second insert hole 203 .

[0068] Please refer to Figure 18 to Figure 19The third sub-molding member 221 further includes a third fixing portion 2213 disposed opposite to the first recessed portion 2211 and a third main body portion 2212 disposed between the first recessed portion 2211 and the third fixing portion 2213. The fourth sub-molding member 222 further includes a fourth fixing portion 2223 disposed opposite to the second protruding portion 2221 and a fourth main body portion 2222 disposed between the second protruding portion 2221 and the fourth fixing portion 2223. After the third fixing portion 2213 and the fourth fixing portion 2223 are arranged in an alternating and close relationship and inserted into the second insert hole 203, the third fixing portion 2213 is inserted into the fourth insert groove 205, and the fourth fixing portion 2223 is inserted into the third insert groove 204. The third fixing portion 2213 and the fourth fixing portion 2223 are arranged in an alternating relationship, one left and one right, along the second direction D2-D2, which can reduce the accumulated tolerance generated during the assembly process of the third sub-molding member 221 and the fourth sub-molding member 222, thereby improving the position accuracy of the stamping. At the same time, after the third fixing portion 2213 is inserted into the fourth insert slot 205 and the fourth fixing portion 2223 is inserted into the third insert slot 204, the first fixing portion 1213 and the fourth fixing portion 2223 can abut against the lower die fixing seat 25 to maintain the positions of the third sub-molding member 221 and the fourth sub-molding member 222 in the lower die block 21. The third sub-molding member 221 and the fourth sub-molding member 222 are prevented from being displaced in the second insert hole 203, so that the first sub-molding member 121 and the third sub-molding member 221 are aligned vertically in the third direction D3-D3, and the second sub-molding member 122 and the fourth sub-molding member 222 are aligned vertically in the third direction D3-D3, thereby improving the accuracy of the stamping die 100 in puncturing and stamping the product 10.

[0069] In the second embodiment, the first sub-molding member 121 and the fourth sub-molding member 222 have the same structure, and the second sub-molding member 122 and the third sub-molding member 221 may have different structures, and the structures of the second sub-molding member 122 and the third sub-molding member 221 are not limited.

[0070] In the third embodiment, the second sub-molding member 122 has the same structure as the third sub-molding member 221 , and the first sub-molding member 121 has a different structure from the fourth sub-molding member 222 , and the structures of the first sub-molding member 121 and the fourth sub-molding member 222 are not limited.

[0071] In summary, the utility model discloses a stamping die 100 for puncturing and stamping a product 10. The stamping die 100 includes an upper die assembly 1 and a lower die assembly 2. The upper die assembly 1 includes an upper die block 11 and a first molding member 12 protruding from the upper die block 11. The first molding member 12 includes a plurality of first sub-molding members 121 and a plurality of second sub-molding members 122. The first sub-molding member 121 is provided with a first protruding portion 1211, and the second sub-molding member 122 is provided with a second recessed portion 1221. The first protruding portion 1211 and the second recessed portion 1221 are staggered and closely arranged. The lower die assembly 2 includes a lower die block 21 and a second molding member 22 protruding from the lower die block 21. The second molding member 22 includes a plurality of third sub-molding members 221 and a plurality of fourth sub-molding members 222. The third sub-molding piece 221 is provided with a first recessed portion 2211, and the fourth sub-molding piece 222 is provided with a second protruding portion 2221. The first recessed portion 2211 and the second protruding portion 2221 are staggered and closely arranged. By arranging the first protruding portion 1211 and the first recessed portion 2211 correspondingly up and down, the first protruding portion 1211 matches the first recessed portion 2211, and the second recessed portion 1221 and the second protruding portion 2221 correspondingly up and down, the second recessed portion 1221 matches the second protruding portion 2221. The product 10 is synchronously punctured and stamped up and down, thereby improving the yield rate of product stamping.

[0072] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0073] The above embodiments are only used to illustrate the present invention but not to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. For example, for the directional description of "front", "back", "left", "right", "up", "down", etc., although this specification has been described in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A stamping die for bidirectional puncture stamping of a product (10), characterized in that: include: An upper mold assembly (1) comprises an upper mold block (11) and a first molded part (12) protruding from the upper mold block (11), wherein the first molded part (12) comprises a plurality of first sub-molding parts (121) and a plurality of second sub-molding parts (122), wherein the first sub-molding parts (121) and the second sub-molding parts (122) are provided with a first protruding part (1211) at a contact end with the product, and a second concave part (1221) at a contact end with the product, and wherein the first protruding part (1211) and the second concave part (1221) are arranged in an alternating manner and in close contact with each other; A lower mold assembly (2), comprising a lower mold block (21) and a second molded part (22) protruding from the lower mold block (21), the second molded part (22) comprising a plurality of third sub-molding parts (221) and a plurality of fourth sub-molding parts (222), the third sub-molding parts (221) and the fourth sub-molding parts (222), the third sub-molding parts (221) are provided with a first recessed part (2211) at the end in contact with the product (10), the fourth sub-molding parts (222) are provided with a second protruding part (2221) at the end in contact with the product (10), the first recessed part (2211) and the second protruding part (2221) are staggered and closely arranged; The first protruding portion (1211) and the first recessed portion (2211) are arranged correspondingly up and down, and the first protruding portion (1211) and the first recessed portion (2211) cooperate with each other; the second recessed portion (1221) and the second protruding portion (2221) are arranged correspondingly up and down, and the second recessed portion (1221) and the second protruding portion (2221) cooperate with each other.

2. The stamping die according to claim 1, characterized in that: The first protrusion (1211) and the second protrusion (2221) are arc-shaped, conical or square.

3. The stamping die according to claim 1, characterized in that: The upper mold block (11) is provided with a first insert hole (104), the shape of the first insert hole (104) matches the shape of the first molded part (12), and the first molded part (12) is inserted into the first insert hole (104); the lower mold block (21) is provided with a second insert hole (203), the shape of the second insert hole (203) matches the shape of the second molded part (22), and the second molded part (22) is inserted into the second insert hole (203).

4. The stamping die according to claim 3, characterized in that: The first sub-molding member (121) further comprises a first fixing portion (1213) arranged opposite to the first protruding portion (1211), and the second sub-molding member (122) further comprises a second fixing portion (1223) arranged opposite to the second recessed portion (1221), and the first fixing portion (1213) and the second fixing portion (1223) are arranged alternately and closely in the first insert hole (104); The third sub-molding component (221) further includes a third fixing portion (2213) arranged opposite to the first recessed portion (2211), and the fourth sub-molding component (222) further includes a fourth fixing portion (2223) arranged opposite to the second protruding portion (2221), and the third fixing portion (2213) and the fourth fixing portion (2223) are alternately and tightly arranged in the second insert hole (203).

5. The stamping die according to claim 4, characterized in that: The first insert hole (104) has a first insert groove (105) and a second insert groove (106), the first insert groove (105) and the second insert groove (106) are arranged alternately, the first fixing portion (1213) is arranged in the first insert groove (105), and the second fixing portion (1223) is arranged in the second insert groove (106); The second insert hole (203) has a third insert groove (204) and a fourth insert groove (205), the third insert groove (204) and the fourth insert groove (205) are arranged alternately, the third fixing portion (2213) is arranged in the third insert groove (204), and the fourth fixing portion (2223) is arranged in the fourth insert groove (205).

6. The stamping die according to any one of claims 1 to 5, characterized in that: The upper mold assembly (1) further comprises an upper pressing material float (13), the first molding piece (12) passes through the upper pressing material float (13), the lower mold assembly (2) comprises a lower pressing material float (23), the second molding piece (22) passes through the lower pressing material float (23), and a receiving position (1001) for the product (10) is formed between the upper pressing material float (13) and the lower pressing material float (23).

7. The stamping die according to claim 6, characterized in that: The stamping die also includes a stopper (3) arranged beside the accommodating position (1001).

8. The stamping die according to claim 7, characterized in that: The upper mold assembly (1) also includes an upper ring seat (14), and the lower mold assembly (2) also includes a lower ring seat (24). The upper pressure material floating block (13) and the upper mold pressing block (11) are embedded in the upper ring seat (14), and the lower pressure material floating block (23) and the lower mold pressing block (21) are embedded in the lower ring seat (24). The stopper (3) is arranged between the upper ring seat (14) and the lower ring seat (24). The upper ring seat (14) has an annular groove (103). When the upper ring seat (14) and the upper ring seat (14) move synchronously toward each other, the stopper (3) is located in the annular groove (103).

9. The stamping die according to claim 7, characterized in that: A step portion (131) is provided around the bottom of the upper pressure material floating block (13), and when the upper pressure material floating block (13) and the lower pressure material floating block (23) move toward each other until the product (10) is clamped, the upper pressure material floating block (13) can abut against the stopper (3).

10. The stamping die according to claim 7, characterized in that: The upper die assembly (1) further comprises an upper die fixing seat (15), the upper die fixing seat (15) being connected to the top of the upper material pressing float (13) via an upper force transmission pin (16), an upper spring (17) being arranged between the upper die fixing seat (15) and the upper force transmission pin (16), the upper force transmission pin (16) passing through the upper die pressing block (11); the lower die assembly (2) further comprises a lower die fixing seat (25), the lower die fixing seat (25) being connected to the bottom of the lower material pressing float (23) via a lower force transmission pin (26), a lower spring (27) being arranged between the lower die fixing seat (25) and the lower force transmission pin (26), the lower force transmission pin (26) passing through the lower die pressing block (21), the upper spring (17) being the same as the lower spring (27).

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