Stamping die

Abstract

The utility model belongs to the technical field of stamping, and discloses a stamping die. The stamping die comprises an upper die assembly and a lower die assembly which are oppositely arranged, the upper die assembly comprises an upper die base assembly, an upper stripping plate assembly and a punch, and the upper stripping plate assembly is movably connected with the upper die base assembly; the punch comprises a reinforcing section and a punching section, the reinforcing section is connected with the upper die base assembly, and the cross section area of the reinforcing section is larger than that of the punching section. The upper stripping plate assembly is provided with guide holes, the guide holes comprise the first guide hole and the second guide hole, the reinforcing section is matched with the first guide hole in an inserted mode, the punching section is matched with the second guide hole in an inserted mode, the punch can be effectively protected and prevented from being broken, the punch replacement frequency is reduced, and the punching work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, and in particular to a stamping die. Background Technology

[0002] Stamping dies are frequently used in machining. A stamping die consists of an upper die assembly and a lower die assembly. The upper die assembly includes a punch. Taking the stamping of a hole in a strip of material as an example, the strip is positioned between the upper and lower die assemblies, with the upper die assembly positioned close to the lower die assembly, allowing the punch to break through the strip and create a hole. Figure 1 and Figure 2 As shown, some of the holes 61 to be punched are slender structures, so the punch 13 needs to be set as a thin sheet structure accordingly. During the production process, the thin sheet punch 13 is prone to breakage.

[0003] Currently, in order to solve the problem of breakage of the punch 13 of the thin sheet, such as Figures 2-3 As shown, the method employed involves connecting a reinforcing member to the upper end of the punch 13, thereby forming a reinforcing section 133 and a stamping section 131 in the punch 13. Specifically, as... Figure 2 As shown, the upper die assembly 1 includes an upper die base assembly 11 and an upper ejector plate 121. The upper ejector plate 121 is movably connected to the upper die base assembly 11 and is used to press the strip 6 before the punch 13 contacts the strip 6. The reinforcing section 133 of the punch 13 is connected to the upper die base assembly 11. The upper ejector plate 121 has a clearance hole 1011 and a stamping guide hole 1012. The clearance hole 1011 is used to avoid the movement of the reinforcing section 133, and the stamping guide hole 1012 is used to guide the stamping section 131. In actual operation, when the upper ejector plate 121 moves downward and presses against the strip 6, the upper die base assembly 11 and the punch 13 may deviate in direction as they continue to move downward. For punch 13, its upper end is connected to upper die base assembly 11, while its lower end is limited in stamping guide hole 1012. This movement deviation may cause the two ends of punch 13 to pull each other, which may lead to the breakage of the connection between reinforcing section 133 and stamping section 131.

[0004] Therefore, there is an urgent need for a stamping die to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a stamping die that can effectively protect the punch, prevent the punch from breaking, reduce the frequency of punch replacement, and improve stamping efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A stamping die includes an upper die assembly and a lower die assembly disposed opposite to each other. The upper die assembly includes an upper die base assembly, an upper stripper assembly, and a punch. The upper stripper assembly is movably connected to the upper die base assembly.

[0008] The punch includes a reinforcing section and a stamping section. The reinforcing section is connected to the upper die base assembly and has a cross-sectional area larger than that of the stamping section.

[0009] The upper stripper assembly has guide holes, including a first guide hole and a second guide hole. The reinforcing section is inserted into the first guide hole, and the stamping section is inserted into the second guide hole.

[0010] Preferably, the upper ejector plate assembly includes an upper ejector plate and a reinforcing component. The upper ejector plate is movably connected to the upper mold base assembly. The guide hole is opened on the reinforcing component. The upper ejector plate is provided with a through hole. The reinforcing component is disposed in the through hole and is detachably connected to the upper ejector plate.

[0011] Preferably, the reinforcing assembly includes a first reinforcing member and a second reinforcing member, both of which are detachably connected to the upper release plate.

[0012] Preferably, the stamping die further includes a stop plate, which is disposed on the upper side of the upper ejector assembly and is movably connected to the upper die base assembly;

[0013] The upper release plate assembly also includes a locking block, which is disposed in the through hole and detachably connected to the stop plate. A hanging groove is provided on the side of the locking block. A hanging platform is provided on the reinforcing assembly. The reinforcing assembly is sandwiched between the locking block and the side wall of the through hole, and the hanging platform is hung in the hanging groove.

[0014] Preferably, the locking block is provided with a through hole, the stop plate is provided with a threaded hole, and the upper release plate assembly also includes a fastener, which passes through the through hole and is connected to the threaded hole.

[0015] Preferably, the reinforcing component also has a notched corner portion.

[0016] Preferably, the punch further includes a transition section that connects the stamping section and the reinforcing section and is disposed within the first guide hole, wherein the cross-sectional area of ​​the transition section gradually increases from the stamping section to the reinforcing section.

[0017] Preferably, the stamping die further includes a guide post that extends along the length of the punch, the guide post is connected to the upper die base assembly, and the upper ejector assembly is slidably engaged with the guide post.

[0018] Preferably, the stamping die further includes an elastic element, which is connected to the upper die base assembly and the upper ejector plate assembly respectively.

[0019] Preferably, the punch further includes a boss, which is disposed on the reinforcing section at one end away from the stamping section. The upper die holder assembly has a mounting hole, and the side wall of the mounting hole is provided with a groove that mates with the boss. The groove is away from the upper ejector assembly. The punch passes through the mounting hole, and the boss is hung in the groove.

[0020] Beneficial effects:

[0021] This invention provides a stamping die, the punch of which includes a reinforcing section and a stamping section. The cross-sectional area of ​​the reinforcing section is larger than that of the stamping section, providing primary reinforcement to the punch. A guide hole is provided on the upper ejector assembly, with the first guide hole's shape matching the cross-section of the reinforcing section and the second guide hole's shape matching the cross-section of the stamping section. In actual operation, when the upper die assembly moves downwards and the upper ejector assembly presses against the material strip, the upper die holder assembly and the punch further move downwards relative to the upper ejector assembly. During this process, the stamping section slides within the second guide hole, and the reinforcing section slides within the first guide hole. Even if there is a slight deviation in the movement of the upper die holder assembly and the punch, it can be corrected by the cooperation of the first guide hole and the reinforcing section. The force on the punch mainly acts on the reinforcing section, thus preventing breakage at the connection between the reinforcing section and the stamping section. This design effectively provides secondary reinforcement to the punch. In summary, the stamping die of this invention can protect the punch, prevent punch breakage, reduce the frequency of punch replacement, and improve stamping efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the stamped strip provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of an existing stamping die;

[0024] Figure 3 This is a schematic diagram of the structure of the punch provided in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the stamping die provided in the embodiment of the present invention in the open state;

[0026] Figure 5 This is a schematic diagram of the stamping die provided in the embodiment of the present invention in the closed state;

[0027] Figure 6 This is a top view of the first reinforcing member provided in this embodiment of the utility model;

[0028] Figure 7 This is a top view of the second reinforcing member provided in this embodiment of the utility model;

[0029] Figure 8This is a side view of the first reinforcing member provided in this embodiment of the utility model;

[0030] Figure 9 This is a side view of the second reinforcing member provided in an embodiment of this utility model.

[0031] In the picture:

[0032] 1. Upper mold assembly;

[0033] 1011, clearance hole; 1012, stamping guide hole;

[0034] 11. Upper mold base assembly; 111. Upper mold base; 112. Upper clamping plate; 113. Mounting hole; 114. Groove;

[0035] 12. Upper release plate assembly;

[0036] 121. Upper release plate; 1211. Through hole;

[0037] 122. Reinforcing component; 1221. First reinforcing member; 1222. Second reinforcing member;

[0038] 123. Guide hole; 1231. First guide hole; 1232. Second guide hole;

[0039] 124. Missing corner section; 1241. First missing corner section; 1242. Second missing corner section;

[0040] 125. Lock block; 1251. Hanging groove; 1252. Through hole;

[0041] 126. Hanging platform;

[0042] 13. Punch; 131. Stamping section; 132. Transition section; 133. Reinforcing section; 134. Boss;

[0043] 2. Lower mold assembly; 21. Lower template; 22. Lower mold base;

[0044] 3. Stop plate; 31. Threaded hole;

[0045] 4. Elastic components; 5. Fasteners;

[0046] 6. Material strip; 61. Punching;

[0047] 7. Guide post. Detailed Implementation

[0048] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0049] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0052] This embodiment provides a stamping die, such as Figures 3-5As shown, the stamping die includes an upper die assembly 1 and a lower die assembly 2 arranged opposite to each other. The upper die assembly 1 includes an upper die base assembly 11, an upper ejector plate assembly 12, and a punch 13. The upper ejector plate assembly 12 is movably connected to the upper die base assembly 11. The punch 13 includes a reinforcing section 133 and a stamping section 131, and is arranged vertically. The reinforcing section 133 is located above the stamping section 131 and is connected to the upper die base assembly 11. The cross-sectional area of ​​the reinforcing section 133 is larger than that of the stamping section 131. A guide hole 123 is formed on the upper ejector plate assembly 12, which is vertically oriented. The guide hole 123 includes a first guide hole 1231 and a second guide hole 1232, with the first guide hole 1231 located at the upper end of the second guide hole 1232. The reinforcing section 133 is inserted into the first guide hole 1231, and the stamping section 131 is inserted into the second guide hole 1232.

[0053] In actual operation, after the upper die assembly 1 moves downward and the upper ejector assembly 12 presses against the strip 6, the upper die base assembly 11 and the punch 13 move further downward relative to the upper ejector assembly 12. During this process, the stamping section 131 slides within the second guide hole 1232, and the reinforcing section 133 slides within the first guide hole 1231. Even if there is a slight deviation in the movement of the upper die base assembly 11 and the punch 13, it can be corrected by the cooperation of the first guide hole 1231 and the reinforcing section 133. The force on the punch 13 mainly acts on the reinforcing section 133, so it will not cause the connection between the reinforcing section 133 and the stamping section 131 to break. The above setting is equivalent to providing a secondary reinforcement effect for the punch 13. This stamping die can protect the punch 13, prevent the punch 13 from breaking, reduce the frequency of punch replacement, and improve stamping efficiency.

[0054] like Figure 4 and Figure 5 As shown, in this embodiment, the upper die holder assembly 11 includes an upper die holder 111 and an upper clamping plate 112. The upper die holder 111 is disposed on the upper side of the upper clamping plate 112, and the upper clamping plate 112 is disposed on the upper side of the upper ejector assembly 12. The upper die holder 111 is used to dock with external stamping equipment. The lower die assembly 2 includes a lower template 21 and a lower die holder 22. The lower template 21 is disposed on the upper side of the lower die holder 22 and can hold the strip material 6. The lower die holder 22 is used to dock with external stamping equipment.

[0055] In this embodiment, the stamping die also includes a guide post 7, which extends along the length of the punch 13, i.e., in a vertical direction. The guide post 7 is connected to the upper die base assembly 11, and the upper ejector plate assembly 12 is slidably engaged with the guide post 7. The upper end of the guide post 7 is connected to the upper die base 111 and the upper clamping plate 112, and the lower end is slidably engaged with the upper ejector plate assembly 12. During operation, the upper ejector plate assembly 12 reciprocates along the guide post 7 relative to the upper die base assembly 11, and the guide post 7 serves to guide the movement.

[0056] In this embodiment, the stamping die also includes an elastic element 4, which is connected to the upper die base assembly 11 and the upper ejector assembly 12. After stamping is completed, the entire upper die assembly 1 moves upward together. At this time, under the action of the elastic element 4, the upper ejector assembly 12 moves downward relative to the upper die base assembly 11, thereby pressing the material strip 6 and automatically unloading the material.

[0057] like Figure 3 As shown, in this embodiment, the punch 13 further includes a transition section 132. The transition section 132 connects the stamping section 131 and the reinforcing section 133 and is disposed within the first guide hole 1231. The cross-sectional area of ​​the transition section 132 gradually increases from the stamping section 131 to the reinforcing section 133. By setting the transition section 132, a sudden change in the cross-section of the punch 13 is avoided, thereby preventing the punch 13 from breaking at the connection point between the stamping section 131 and the reinforcing section 133, further improving the structural strength of the punch 13. In this embodiment, the side of the transition section 132 is arc-shaped. In some embodiments, the side of the transition section 132 is inclined, which is not specifically limited here. In some embodiments, the punch 13 includes a main body and a reinforcing block. The main body is a thin sheet structure, and the reinforcing block is connected to one side of the main body, thereby forming the stamping section 131, the transition section 132, and the reinforcing section 133.

[0058] like Figures 3-5 As shown, in this embodiment, the punch 13 further includes a boss 134, which is disposed on the reinforcing section 133 at one end away from the stamping section 131. An mounting hole 113 is provided on the upper die holder assembly 11, and a groove 114 that mates with the boss 134 is also provided on the side wall of the mounting hole 113. The groove 114 is away from the upper ejector plate assembly 12. The punch 13 passes through the mounting hole 113, and the boss 134 is hung in the groove 114. Specifically, the mounting hole 113 is located on the upper clamping plate 112 of the upper die holder assembly 11, and a groove 114 that mates with the boss 134 is also provided on the side wall of the mounting hole 113. The groove 114 is away from the upper ejector plate assembly 12. The punch 13 passes through the mounting hole 113, and the boss 134 is hung in the groove 114. When the upper die holder assembly 11 moves up and down, it can drive the punch 13 to move up and down relative to the upper stripper assembly 12, so that the stamping section 131 moves back and forth in the second guide hole 1232, thereby stamping the strip 6 sandwiched between the upper stripper assembly 12 and the lower die assembly 2.

[0059] like Figures 4-5As shown, the upper ejector plate assembly 12 includes an upper ejector plate 121 and a reinforcing assembly 122. The upper ejector plate 121 is movably connected to the upper die base assembly 11. A guide hole 123 is formed on the reinforcing assembly 122. A through hole 1211 is provided on the upper ejector plate 121. The reinforcing assembly 122 is disposed in the through hole 1211 and is detachably connected to the upper ejector plate 121. This design allows for several advantages. First, when different sizes of punches 13 need to be replaced, the corresponding reinforcing assembly 122 can be replaced according to the specifications of the punch 13, without replacing the entire upper ejector plate assembly 12, thus improving the flexibility of the stamping die. Second, the wear resistance requirements for the parts of the upper ejector plate assembly 12 that mate with the punch 13 are high, while the wear resistance requirements for other parts are not high. Therefore, only the reinforcing assembly 122 can be made of wear-resistant material, reducing manufacturing costs while ensuring the stamping die's performance requirements are met. Optionally, the upper ejector plate 121 is made of CR12MOV. The reinforcing component 122 is made of SKD11, which is a high wear-resistant general-purpose cold work die steel.

[0060] Among punches 13 of various sizes and specifications, some punches 13 have the same size of reinforcing section 133 but different size of stamping section 131. In other punches 13, the size of stamping section 131 is the same but the size of reinforcing section 133 is different. If a reinforcing component 122 is configured for each type of punch 13, it will also cause the problem of high manufacturing cost.

[0061] In this regard, such as Figures 4-5 As shown, the reinforcing assembly 122 includes a first reinforcing member 1221 and a second reinforcing member 1222, both of which are detachably connected to the upper ejector plate 121. When using punches 13 of different specifications, only the first reinforcing member 1221 or the second reinforcing member 1222 can be replaced according to the actual size of the punch 13, while the other remains unchanged. By setting the reinforcing assembly 122 into two parts, not only can it be flexibly combined to guide and reinforce punches 13 of different sizes and specifications, but also, given a fixed number of punches 13, the number of types of reinforcing assemblies 122 can be reduced, thereby lowering the manufacturing cost of the stamping die.

[0062] like Figures 6-9 As shown, the first guide hole 1231 is opened on the first reinforcing member 1221, and the second guide hole 1232 is opened on the second reinforcing member 1222. In the preliminary preparation work, the first reinforcing member 1221 and the second reinforcing member 1222, which are adapted to the shape of the punch 13, are set in the through hole 1211. The punch 13 passes through the first reinforcing member 1221 and the second reinforcing member 1222 in sequence. In actual operation, the reinforcing section 133 is inserted into the first guide hole 1231, and the stamping section 131 is inserted into the second guide hole 1232.

[0063] Specifically, when it is necessary to replace punches 13 of different sizes and specifications, the punches 13 to be replaced can be compared with the current punches 13. First, it can be determined whether the cross-section of the reinforcing section 133 has changed. If it has not changed, only the cross-section of the stamping section 131 has changed, and the first reinforcing member 1221 can remain unchanged, only the second reinforcing member 1222 needs to be replaced. If the cross-sectional area of ​​the stamping section 131 has not changed, and only the cross-sectional area of ​​the reinforcing section 133 has changed, for example, the reinforcing thickness of the reinforcing section 133 has increased or decreased, and correspondingly, the cross-sectional area of ​​the reinforcing section 133 has increased or decreased. The second reinforcing member 1222 can remain unchanged, only the first reinforcing member 1221 adapted to the new reinforcing section 133 needs to be replaced. The operation is simple and improves the flexibility of using stamping dies.

[0064] like Figures 6-7 As shown, in this embodiment, the reinforcing component 122 is also provided with a notched corner portion 124. The notched corner portion 124 plays a role in preventing mistaken installation during the process of installing the reinforcing component 122 onto the upper release plate 121, avoiding incorrect installation and operational errors, and improving installation efficiency.

[0065] Specifically, the notched portion 124 includes a first notched portion 1241 and a second notched portion 1242. The first notched portion 1241 is disposed on the first reinforcing member 1221, and the second notched portion 1242 is disposed on the second reinforcing member 1222. Both the first notched portion 1241 and the second notched portion 1242 are missing one corner of a rectangle. This structure facilitates the manufacture of the first reinforcing member 1221 and the second reinforcing member 1222, and makes it easy for operators to identify the installation direction. In other embodiments, the notched portion 124 may be missing three corners of a rectangle, as long as it can achieve foolproof installation, and no specific limitation is made here.

[0066] To facilitate the assembly and disassembly of the reinforcement component 122, such as Figures 4-5As shown, the stamping die also includes a stop plate 3, which is disposed on the upper side of the upper ejector plate assembly 12 and is movably connected to the upper die base assembly 11. The upper ejector plate assembly 12 also includes a locking block 125. The upper ejector plate 121 is provided with a through hole 1211, the locking block 125 is disposed in the through hole 1211 and is detachably connected to the stop plate 3, the side of the locking block 125 is provided with a hanging groove 1251, the reinforcing assembly 122 is provided with a hanging platform 126, the reinforcing assembly 122 is sandwiched between the side wall of the locking block 125 and the through hole 1211, and the hanging platform 126 is hung in the hanging groove 1251. On the one hand, during operation, the reinforcing component 122 can be locked in the upper release plate 121, which improves the structural stability of the stamping die. On the other hand, when the reinforcing component 122 needs to be disassembled or replaced, only the locking block 125 needs to be removed to remove the second reinforcing component 1222 and the first reinforcing component 1221. When installing the reinforcing component 122, the first reinforcing component 1221, the second reinforcing component 1222 and the locking block 125 are all installed in the through hole 1211, and then the locking block 125 is connected to the stop plate 3. The operation process is simple and improves work efficiency.

[0067] In this embodiment, the stop plate 3 has a clearance hole, through which the punch 13 passes and then through the guide hole 123 of the reinforcing component 122. Optionally, the cross-sectional size of the clearance hole is the same as the cross-sectional size of the reinforcing section 133.

[0068] like Figures 4-5 As shown, the locking block 125 is provided with a through hole 1252, and the stop plate 3 is provided with a threaded hole 31. The upper ejector plate assembly 12 also includes a fastener 5, which passes through the through hole 1252 and is connected to the threaded hole 31. On the one hand, the fastener 5 passes through the locking block 125 and is connected to the stop plate 3 to connect the upper ejector plate 121 and the stop plate 3; on the other hand, the locking block 125 is locked in the upper ejector plate 121 so that the hanging platform 126 is stably hung in the hanging groove 1251, thereby stabilizing the stamping die structure. In this embodiment, the fastener 5 can be a bolt. It should be noted that in this embodiment, the through hole 1252 is a countersunk hole, and the head of the fastener 5 is accommodated in the countersunk hole to avoid affecting the upper ejector plate 121's pressure on the material strip 6.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stamping die, characterized in that, It includes an upper mold assembly (1) and a lower mold assembly (2) arranged opposite to each other. The upper mold assembly (1) includes an upper mold base assembly (11), an upper ejector plate assembly (12) and a punch (13). The upper ejector plate assembly (12) is movably connected to the upper mold base assembly (11). The punch (13) includes a reinforcing section (133) and a stamping section (131). The reinforcing section (133) is connected to the upper die base assembly (11) and has a cross-sectional area larger than that of the stamping section (131). The upper stripper assembly (12) has a guide hole (123), which includes a first guide hole (1231) and a second guide hole (1232). The reinforcing section (133) is inserted into the first guide hole (1231), and the stamping section (131) is inserted into the second guide hole (1232).

2. The stamping die according to claim 1, characterized in that, The upper ejector plate assembly (12) includes an upper ejector plate (121) and a reinforcing assembly (122). The upper ejector plate (121) is movably connected to the upper mold base assembly (11). The guide hole (123) is opened on the reinforcing assembly (122). The upper ejector plate (121) is provided with a through hole (1211). The reinforcing assembly (122) is disposed in the through hole (1211) and is detachably connected to the upper ejector plate (121).

3. The stamping die according to claim 2, characterized in that, The reinforcing component (122) includes a first reinforcing member (1221) and a second reinforcing member (1222), both of which are detachably connected to the upper release plate (121).

4. The stamping die according to claim 2, characterized in that, The stamping die also includes a stop plate (3), which is disposed on the upper side of the upper ejector assembly (12) and is movably connected to the upper die base assembly (11); The upper release plate assembly (12) also includes a locking block (125), which is disposed in the through hole (1211) and detachably connected to the stop plate (3). A hanging groove (1251) is provided on the side of the locking block (125). A hanging platform (126) is provided on the reinforcing assembly (122). The reinforcing assembly (122) is sandwiched between the locking block (125) and the side wall of the through hole (1211), and the hanging platform (126) is hung in the hanging groove (1251).

5. The stamping die according to claim 4, characterized in that, The locking block (125) is provided with a through hole (1252), the stop plate (3) is provided with a threaded hole (31), and the upper release plate assembly (12) also includes a fastener (5), which passes through the through hole (1252) and is connected to the threaded hole (31).

6. The stamping die according to claim 2, characterized in that, The reinforcing component (122) is also provided with a notched corner portion (124).

7. The stamping die according to any one of claims 1-6, characterized in that, The punch (13) further includes a transition section (132), which connects the stamping section (131) and the reinforcing section (133) and is disposed in the first guide hole (1231). The cross-sectional area of ​​the transition section (132) gradually increases from the stamping section (131) to the reinforcing section (133).

8. The stamping die according to any one of claims 1-6, characterized in that, The stamping die also includes a guide post (7), which extends along the length of the punch (13). The guide post (7) is connected to the upper die base assembly (11), and the upper ejector plate assembly (12) is slidably engaged with the guide post (7).

9. The stamping die according to any one of claims 1-6, characterized in that, The stamping die also includes an elastic element (4), which is connected to the upper die base assembly (11) and the upper ejector plate assembly (12) respectively.

10. The stamping die according to any one of claims 1-6, characterized in that, The punch (13) also includes a boss (134), which is located on the reinforcing section (133) at one end away from the stamping section (131). The upper die holder assembly (11) has a mounting hole (113), and the side wall of the mounting hole (113) is also provided with a groove (114) that mates with the boss (134). The groove (114) is away from the upper ejector assembly (12). The punch (13) passes through the mounting hole (113), and the boss (134) is hung in the groove (114).

Images