Terminal punch forming die

Abstract

The utility model discloses a terminal punch forming die which comprises a die body, the die body comprises an upper die, a lower die and a forming cavity, and the forming cavity comprises a material belt placing side cavity opening, a material belt extending side cavity opening and a workpiece forming area. The workpiece forming area comprises a sample punching area, a basic type punching area, a crimping part forming area and an inserting part forming area which are formed in sequence, so that when the terminal needs to be produced and formed, the terminal can be formed through the progressive feeding action of a material belt and the continuous opening and closing punching action of the die under the action of the workpiece forming area in the die; after the terminal is punched from a sample material, basic type punching related to required beveling and indentation procedures and respective forming procedures aiming at a crimping part and an inserting part of the terminal after the basic type punching are completed, so that compared with the prior art, the terminal forming process can be greatly simplified, the forming efficiency is greatly improved, and the production cost is reduced. And the investment cost of required equipment is reduced, and the forming stage is stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of forming die, specifically relates to a terminal stamping forming die. BACKGROUND

[0002] The wiring terminal used on the new energy automobile connector on the market is often different according to the use occasion, and the type of the wiring terminal used is also various. In addition, according to the use requirement, for example, for low load, or for the occasion of convenient maintenance and replacement, the design requirement of the terminal plug interface is often not so high, that is, as long as the terminal plug interface position can be rolled into the corresponding shape; and for some high load, high vibration or long-term stable connection scenes, the terminal plug interface position is often rolled into the corresponding shape, and the two ends of the involved crimping are designed by buckling, so that the designed wiring terminal can be used in the environment with higher electrical and mechanical stability.

[0003] The existing design for the wiring terminal for high load, high vibration or long-term stable connection is mostly through the stamping mode of punch press, and the sample material of the wiring terminal before crimping is formed by stamping, and then the shape of the wiring terminal is formed by pressing and cold punching by using the die. But the wiring terminal formed by the above-mentioned mode mostly needs multiple devices to cooperate, and the number involved is also multiple, so that the production and manufacturing of the wiring terminal for high load, high vibration or long-term stable connection is relatively complicated, thereby affecting the production efficiency of the wiring terminal to a certain extent. UTILITY MODEL CONTENTS

[0004] To this end, the utility model aims at providing a terminal stamping forming die for forming the wiring terminal, which can improve the production efficiency of the wiring terminal by using only one device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] The utility model provides a kind of terminal stamping forming die, including mould body, the mould body includes upper die, lower die, distribution in upper and lower die's forming cavity, the forming cavity includes distribution in forming cavity one side's material band and inserts side cavity mouth, and distribution in forming cavity other side's material band and inserts side cavity mouth for the material band of accompanying forming piece stretches out, and distribution in forming cavity between material band and inserts side cavity mouth and material band and inserts side cavity mouth and inserts forming area, the forming area of workpiece includes the blanking forming of the sample material for the sample material of being successively formed before sample material, for the base type stamping area of the edge and indentation process completion before sample material forming, for the crimping part forming area of the crimping part of forming piece, and for the crimping part forming area of the plug-in part of forming piece;

[0007] terminal forming stage, material band is inserted into the material band and inserts side cavity mouth in the described and is carried out blanking and forming action by sample material forming area, base type stamping area, crimping part forming area and plug-in part forming area, and is exported by the material band and inserts side cavity mouth, forms the forming of terminal.

[0008] Preferably, base type stamping area, crimping part forming area are also formed with sample material pre-bending area, and the crimping part and plug-in part of forming piece are pre-bent before forming by the described sample material pre-bending area.

[0009] Preferably, sample material pre-bending area includes sample material edge pre-bending area, plug-in part both sides first pre-bending folding area, plug-in part both sides second pre-bending folding area, and the sample material edge pre-bending area, plug-in part both sides first pre-bending folding area and plug-in part both sides second pre-bending folding area are sequentially arranged between base type stamping area and crimping part forming area.

[0010] Preferably, crimping part forming area, plug-in part forming area and plug-in part both sides second pre-bending folding area are combined and distributed, and the sample material with edge pre-bending is formed by the described sample material edge pre-bending area, and the plug-in part both sides first pre-bending folding area and plug-in part both sides second pre-bending folding area are formed by the combination of crimping part forming area, to form the crimping part of crimping part forming and the twice pre-bending of plug-in part, and the plug-in part of forming piece is formed by the intervention of the described plug-in part forming area.

[0011] Preferably, plug-in part forming area includes plug-in part first side hemming forming area, plug-in part second side hemming buckling forming area and plug-in port shape setting mechanism distributed in one side of plug-in part second side hemming buckling forming area, and plug-in port shape setting mechanism is inserted into the plug-in port of the to-be-formed piece on the material band of plug-in part second side hemming buckling forming area before the mould is completely closed.

[0012] Preferably, the plug-in interface shape setting mechanism comprises an extrusion punch limited on the upper die, and a slide rail distributed on the lower die, a slide block in sliding connection with the slide rail, a reset guide connected with the slide block and a plug-in interface shape setting piece, and a reset piece connected with the reset guide, the outer edge shape of the plug-in interface shape setting piece is matched with the shape of the plug-in interface of the forming piece, the reset piece and the plug-in interface shape setting piece are in linkage, at the second side of the plug-in part, the second side of the plug-in part is buckled and formed in the die closing stage, the extrusion punch is in contact with the slide block, with the continuous closing of the die, the slide block on the slide rail is moved by the extrusion punch, and the plug-in interface shape setting piece connected with the slide block is extended into the plug-in interface of the to-be-formed piece, in the die opening stage, the reset piece is reset, and the plug-in interface shape setting piece is withdrawn from the plug-in interface of the formed forming piece.

[0013] Preferably, the sample material punching area comprises a punching punch distributed on the upper die and capable of stretching and contracting towards the lower die, the punching punch comprises a right punching area opposite to the material belt insertion side cavity and used for right side punching of the sample material, and a left punching area distributed on the punching punch and located away from the right punching area, and the lower die is provided with a blanking cavity matched with the shape of the punching punch;

[0014] The material belt inserted into the forming cavity through the material belt insertion side cavity is moved towards the material belt extension side cavity through external step feeding, and after the die is opened and closed twice, the single un-curved sample material on the material belt is punched and formed.

[0015] Preferably, the basic type stamping area comprises a sample material crimping part chamfering punch distributed on the upper die and located on one side of the punching punch, and a crimping part friction strip punching punch distributed on the upper die and located away from one side of the punching punch, the lower die is provided with a positioning plate for positioning the material belt in the punching stage of the sample material crimping part chamfering punch, and a first backing plate distributed on the lower die and used for being placed under the material belt in the opening and closing stage of the upper die and the lower die to form an interface with the crimping part friction strip punching punch.

[0016] Preferably, the sample material edge pre-bending area, the first pre-bending folding area of the two sides of the plug-in part, the second pre-bending folding area of the two sides of the plug-in part, the crimping part forming area, and the plug-in part forming area all comprise a bending forming extrusion punch formed between the sample material crimping part chamfering punch and the material belt extension side cavity on the upper die, and an extrusion butt block matched with the bending forming extrusion punch on the lower die, in the opening and closing stage of the upper die and the lower die, the material belt on the bending forming extrusion punch and the extrusion butt block is extruded, and the sample material on the material belt is bent and formed.

[0017] Preferably, the forming of the crimping portion friction strip forming punch further comprises a first pre-bending forming between the connecting portion formed between the crimping portion and the insertion portion of the single un-crimped pre-sample and the insertion portion.

[0018] The utility model has the positive effect that: through the terminal stamping forming die used for terminal forming relates to upper die, lower die, the forming cavity between upper die and lower die, and the both sides position of forming cavity is correspondingly provided with the material band insertion side cavity mouth for material band insertion, the material band extension side cavity mouth for the material band extension from forming cavity after the terminal forming piece forms, and can be used for the workpiece forming area of terminal forming, and the component part of workpiece forming area contains the sample punching area for blanking forming of un-crimped pre-sample, the basic type stamping area for the edge and indentation process completion before sample forming, the crimping portion forming area for crimping portion forming of forming piece, and the insertion portion forming area for insertion portion forming of forming piece, and the sample punching area, the basic type stamping area, the crimping portion forming area and the insertion portion forming area are sequentially formed in the position of workpiece forming area of forming cavity, so that when the terminal needs to be produced and formed, the progressive feeding action of material band and the continuous opening and closing stamping forming action of die can make the sample punching area, the basic type stamping area, the crimping portion forming area and the insertion portion forming area on the workpiece forming area in the die work respectively, realize the basic type stamping of the edge and indentation process involved after the sample punching of the terminal, and the respective forming process of the crimping portion and the insertion portion of the terminal after the basic type stamping, so that compared with the existing forming mode of needing to work together with punch and die, and possibly using multiple dies, the terminal forming process can be greatly simplified, the forming efficiency is greatly improved, and the investment cost of the equipment required for terminal forming can be reduced to a certain extent, and the forming stage is stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the specific embodiment of the utility model or the prior art, the drawings needed to be used in the specific embodiment or the prior art description are briefly introduced as follows. In the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0020] Figure 1 It is a three-dimensional schematic view of the terminal stamping forming die in the utility model;

[0021] Figure 2 It is an exploded schematic view of the terminal stamping forming die in the utility model;

[0022] Figure 3 It is a structural schematic view of the lower die in the utility model;

[0023] Figure 4 It isFigure 3 A magnified view of part B;

[0024] Figure 5 for Figure 3 A magnified view of part A;

[0025] Figure 6 This is a schematic structural diagram of the upper die in the utility model;

[0026] Figure 7 for Figure 3 Magnified view of part C;

[0027] Figure 8 for Figure 3 Magnified view of the D part;

[0028] Figure 9 for Figure 2 An enlarged schematic diagram of

[0029] Figure 10 It is a three-dimensional schematic diagram of the material belt in the utility model;

[0030] Figure 11 for Figure 10 An enlarged schematic diagram of . DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present utility model are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore only examples and are not intended to limit the scope of protection of the present utility model.

[0032] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0033] like Figures 1-11The utility model discloses terminal stamping forming die, including mould body, the mould body includes upper die 1, lower die 2, the forming cavity between distributing upper and lower die, the forming cavity includes the material belt insertion side cavity mouth b of distributing at the one side of forming cavity, and the material belt extension side cavity mouth c for the material belt a of distributing at the other side of forming cavity and the material belt of being used to the extension of accompanying forming piece, and the workpiece forming area between material belt insertion side cavity mouth b and material belt extension side cavity mouth c in forming cavity, workpiece forming area includes the sample material punching area for the sample material e of being used to the sample material e before curling and being formed, the basic type stamping area for the edge f and the indentation g process of sample material e forming before being completed, the crimping part forming area 4 for the crimping part d1 forming of forming piece, and the plug -in part forming area for the plug -in part d3 forming of forming piece, terminal d forms stage, material belt a is inserted into material belt insertion side cavity mouth b and is inserted, and is punched and is formed action through sample material punching area, basic type stamping area, crimping part forming area 4 and plug -in part forming area, and the output through material belt extension side cavity mouth c, form the forming of terminal d.

[0034] The terminal stamping forming die used for forming the terminal d is related to the upper die 1, the lower die 2 and the forming cavity between the upper die and the lower die, and the two sides of the forming cavity are provided with the material belt insertion side cavity mouth b for inserting the material belt a, the material belt extension side cavity mouth c for the material belt a to extend out of the forming cavity after the forming piece of the terminal d is formed, and the workpiece forming area for forming the terminal d. The workpiece forming area includes the sample material punching area for punching and forming the sample material e before curling, the basic type stamping area for completing the edge f and the indentation g process before the sample material e is formed, the crimping part forming area 4 for forming the crimping part d1 of the forming piece, and the plug-in part forming area for forming the plug-in part d3 of the forming piece. The sample material punching area, the basic type stamping area, the crimping part forming area 4 and the plug-in part forming area are sequentially formed in the workpiece forming area of the forming cavity. When the terminal d needs to be formed, the progressive feeding action of the material belt a and the continuous opening and closing stamping action of the die can make the sample material punching area, the basic type stamping area, the crimping part forming area 4 and the plug-in part forming area in the workpiece forming area of the die work respectively, complete the basic type stamping of the edge f and the indentation g process after the sample material e is punched, and the forming process of the crimping part d1 and the plug-in part d3 of the terminal d after the basic type stamping. Compared with the existing forming method that needs the cooperation of the punch and the die and possibly uses multiple dies, the forming process of the terminal d is greatly simplified, the forming efficiency is greatly improved, the investment cost of the equipment for forming the terminal d is reduced to a certain extent, and the forming stage is stable and reliable.

[0035] As Figures 2-9, 11, the sample pre-bending area 9 is formed between the basic stamping area and the crimping area 4, the crimping part d1 and the insertion part d3 of the formed part are pre-bent before forming through the sample pre-bending area 9, so that the sample e can be pre-bent through the sample pre-bending area 9 after the reverse edge f and the required indentation g process, thereby ensuring that the forming process is more convenient during subsequent forming, that is, there is no difficulty in forming or the required structure of the forming area needs to be relatively complex due to the pre-bending.

[0036] As shown in Figures 2-9 , the sample pre-bending area 9 includes the sample edge pre-bending area 24, the first pre-bending folding area 8 on both sides of the insertion part, and the second pre-bending folding area 5 on both sides of the insertion part, the sample edge pre-bending area 24, the first pre-bending folding area 8 on both sides of the insertion part, and the second pre-bending folding area 5 are sequentially arranged between the basic stamping area and the crimping area 4, thereby further ensuring the forming process, especially the insertion part d3, which involves bending the two sides of the sample e, and then folding, so that when the sample pre-bending area 9 is divided into multiple pre-bending, the structure of the formed part is easier to design during subsequent forming of the insertion part d3, and the stamping forming die of the utility model is easier to design and implement during the manufacturing stage.

[0037] As shown in Figures 2-9 , the crimping area 4, the insertion part forming area and the second pre-bending folding area 5 on both sides of the insertion part are combined, the sample e with pre-bent edges is formed through the sample edge pre-bending area 24, and the first pre-bending folding area 8 on both sides of the insertion part and the second pre-bending folding area 5 are combined with the crimping area 4 to form the crimping part d1 and the twice pre-bending of the insertion part d3, and the insertion part d3 of the formed part is formed through the intervention of the insertion part forming area. The stamping forming die can be designed more flexibly through the above, that is, the pre-bending or forming of the crimping part d1 of the terminal d can be designed, and the structure of the insertion part d3 can be designed, thereby ensuring that the terminal d can be formed more quickly, and the forming efficiency of the terminal d is improved to some extent.

[0038] As shown in Figures 2-3, 5-6, 8-9, the above by the plug-in part forming area includes plug-in part first side hemming forming area 6, plug-in part second side hemming buckle forming area 7, and the plug-in port shape setting mechanism distributed on one side of plug-in part second side hemming buckle forming area 7, the plug-in port shape setting mechanism is designed to extend into the plug-in port d4 of the to-be-formed part on the material belt a of plug-in part second side hemming buckle forming area 7 before the mold is completely closed, since the terminal d forming sample e will contain two side parts respectively bent and closed, thereby the utility model divides the sample e forming into one side hemming forming first, and then the other side hemming buckle closing forming, at the same time, in order to ensure that the two sides can be buckled after hemming, it can be adapted to the plug-in male end, the plug-in port shape setting mechanism is designed on one side of plug-in part second side hemming buckle forming area 7, and the plug-in port shape setting mechanism is designed to be inserted into the plug-in port d4 of the to-be-formed terminal d before plug-in part second side hemming buckle forming area 7 works, thereby ensuring that the shape of the plug-in port d4 of the terminal d after forming can correspond to the required structure, thereby also ensuring the reliability of the design of the utility model.

[0039] As Figures 2-3 , 5-6, 8-9, the above by the plug-in port shape setting mechanism includes the extrusion punch 15 limited on the upper die 1, and the slide rail 28 distributed on the lower die 2, the sliding block 29 in sliding connection on the slide rail 28, the reset guide 26 connected to the sliding block 29 and the plug-in port shape setting piece 5, and the reset piece 27 connected to the reset guide 26, the outer edge shape of the plug-in port shape setting piece 5 is adapted to the shape of the plug-in port d4 of the formed part, the reset piece 27 and the plug-in port shape setting piece 5 are in linkage, on plug-in part second side hemming buckle forming area 7 and in the mold closing stage, the extrusion punch 15 is in contact with the sliding block 29, with the continuous closing of the mold, the sliding block 29 on the slide rail 28 is moved by the extrusion punch 15, and the plug-in port shape setting piece 5 connected to the sliding block 29 extends into the plug-in port d4 of the to-be-formed part, in the mold opening stage, the reset piece 27 resets, and the plug-in port shape setting piece 5 in the plug-in port d4 of the formed part exits, thereby further ensuring the reliable design of the plug-in port shape setting mechanism and the reliable driving, and after the terminal d is formed, the reset piece 27 can reliably pop out the plug-in port shape setting piece 5 in the plug-in port d4 of the formed terminal d, thereby realizing the reliable design of the plug-in port shape setting mechanism, avoiding the interference with the normal opening and closing of the mold, affecting the movement of the material belt a, and ensuring the rationality of the design of the utility model.

[0040] As Figures 2-4, 6-7, the above through the sample material stamping area including the distribution of the upper die 1 and can be toward the lower die 2 direction of the expansion and contraction action of the blanking punch 11, blanking punch 11 including with the material belt placed into the side cavity b is opposite to the setting and used for the right side of the sample material e blanking forming right blanking area 112, and located on the blanking punch 11 and located on the side away from the right blanking area 112 on the distribution of the left blanking area 111, lower die 2 on the opening with the blanking punch 11 shape adaptation of the blank cavity;

[0041] Through the material belt placed into the side cavity b into the forming cavity of the material belt a, through the external level progressive feeding mode, the mold opening and closing movement is made to the material belt extension side cavity c direction, and through the mold after two opening and closing action, that is, the mold first opening and closing, through the right blanking area 112 of the blanking punch 11 to complete the right side of the sample material e before curling, and after the second opening and closing of the mold, with the progressive feeding of the material belt, and through the left blanking area 111 of the blanking punch 11 acting on the material belt to form the left side of the sample material e before curling, and at the same time through the right blanking area 112 of the blanking punch 11 to the next sample material e before curling on the material belt corresponding to the right side of the forming, thus also forming through the action of the blanking punch 11, forming the design of the blanking forming of the single sample material e before curling on the material belt a, to ensure that through the sample material stamping area, the reliable blanking forming of the sample material e before curling can be completed, and at the same time and can be through the action of the blank cavity, the blanking waste is discharged to the outside of the mold.

[0042] As Figures 2-4 , 6-7, the above through the basic type stamping area including the distribution of the upper die 1 and located on one side of the blanking punch 11 sample material crimping part chamfer punch 12, and the distribution of the upper die 1 and located away from the side of the blanking punch 11 crimping part friction strip stamping punch 16, the lower die 2 is formed with the sample material crimping part chamfer punch 12 stamping stage for the positioning of the material belt a positioning plate 22, and the distribution of the lower die 2 for the upper and lower die opening and closing stage under the material belt a forms the first gasket plate 23 which is designed to be in contact with the crimping part friction strip stamping punch 16, which can realize the reliable forming of the chamfer f on the crimping part d1 of the terminal d involved on the sample material e before curling and the friction strip d11 through the basic type stamping area, thus also ensuring the reliability of the design of the stamping forming die.

[0043] As Figures 2-9As shown, the above-mentioned pre-bending area 24, the first pre-bending area 8, the second pre-bending area 5, the crimping area 4 and the insertion area are all formed by the bending forming extrusion punch between the punch 12 and the cavity c of the material belt, and the extrusion butt block is arranged in the lower die 2. During the opening and closing of the upper die and the lower die, the material belt a is extruded by the bending forming extrusion punch and the extrusion butt block, so that the sample e on the material belt a is bent and formed. Therefore, during the progressive feeding of the material belt a and the opening and closing of the mold, the bending forming extrusion punch of the upper die 1 and the extrusion butt block of the lower die 2 can cooperate to complete the pre-bending of the sample e, the first pre-bending of the two sides of the insertion part d3, the second pre-bending of the two sides of the insertion part d3, and the forming of the crimping part d1 and the insertion part d3, thereby further ensuring the reliability of the design.

[0044] As Figures 2-3 As shown in Figs. 6 and 7, the forming of the crimping part friction strip punch 16 further includes the first pre-bending forming d2 between the connection part between the crimping part d1 and the insertion part d3 of the single uncurled sample e and the insertion part d3, so that the produced terminal d is consistent with the structure of the terminal d on the market when the terminal stamping forming mold is used.

[0045] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Based on the above description, those skilled in the art can make other different forms of changes or modifications. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or modifications extended from the essential spirit of the present application still belong to the protection scope of the present application.

Claims

1. A terminal stamping die, comprising a die body, wherein the die body comprises an upper die, a lower die, and a forming cavity distributed between the upper and lower dies, characterized in that: The molding cavity includes a material strip insertion side cavity opening distributed on one side of the molding cavity, a material strip extension side cavity opening distributed on the other side of the molding cavity for extending the material strip with the molding part, and a workpiece molding area distributed in the molding cavity between the material strip insertion side cavity opening and the material strip extension side cavity opening. The workpiece molding area includes a sample punching area for blanking and molding the sample before curling, a basic stamping area for completing the chamfering and indentation processes before the sample is molded, a crimping part molding area for molding the crimping part of the molding part, and a plug-in part molding area for molding the plug-in part of the molding part. During the terminal forming stage, the material strip is placed into the side cavity through the material strip, and is punched and formed through the sample punching area, basic stamping area, crimping part forming area, and plug-in part forming area, and is output from the side cavity through the material strip to form the terminal.

2. The terminal stamping die according to claim 1, characterized in that: A sample material pre-bending area is also formed between the basic stamping area and the crimping part forming area. Through the sample material pre-bending area, the crimping part and the plug-in part of the formed part are pre-bent before forming.

3. The terminal stamping die according to claim 2, characterized in that: The sample material pre-bending area includes the sample material edge pre-bending area, the first pre-bending and gathering areas on both sides of the plug-in part, and the secondary pre-bending and gathering areas on both sides of the plug-in part. The sample material edge pre-bending area, the first pre-bending and gathering areas on both sides of the plug-in part, and the secondary pre-bending and gathering areas on both sides of the plug-in part are distributed in sequence between the basic stamping area and the crimping part forming area.

4. The terminal stamping die according to claim 3, wherein: The crimping part forming area, the plug-in part forming area and the secondary pre-bending and gathering areas on both sides of the plug-in part are distributed in a combined manner. The sample material with pre-bent edges has been formed through the sample edge pre-bending area. In the forming stages of the first pre-bending and gathering areas on both sides of the plug-in part and the secondary pre-bending and gathering areas on both sides of the plug-in part, they are combined with the crimping part forming area to form the crimping part and the plug-in part twice at the same time. Through the intervention of the plug-in part forming area, the plug-in part of the formed part is formed.

5. The terminal stamping die according to claim 4, characterized in that: The plug-in part forming area includes a first side curling forming area of ​​the plug-in part, a second side curling buckle forming area of ​​the plug-in part, and an insert interface shape forming mechanism distributed on one side of the second side curling buckle forming area of ​​the plug-in part. The insert interface shape forming mechanism extends into the insert interface of the part to be formed on the material strip of the second side curling buckle forming area of ​​the plug-in part before the mold is completely closed.

6. The terminal stamping die according to claim 5, characterized in that: The plug interface shape forming mechanism includes an extrusion punch limited on the upper die, a slide rail distributed on the lower die, a slider slidably connected to the slide rail, a reset guide and an plug interface shape forming member connected to the slider, and a reset member connected to the reset guide. The outer edge shape of the plug interface shape forming member is adapted to the shape of the plug interface of the formed member. The reset member and the plug interface shape forming member are arranged in a linkage manner. On the second side curling buckle forming area of ​​the plug-in part and in the mold closing stage, the extrusion punch is abutted against the slider. As the mold continues to close, the extrusion punch pushes the slider on the slide rail to move, and the plug interface shape forming member connected to the slider is formed to extend into the plug interface of the member to be formed. In the mold opening stage, the reset member performs a reset action, and the plug interface shape forming member exits from the plug interface of the formed member.

7. The terminal stamping die according to claim 2, 3, 4, 5 or 6, characterized in that: The sample punching area includes a punch distributed on the upper die and capable of performing a telescopic movement toward the lower die. The punch includes a right punching area that is arranged opposite to the side cavity opening for inserting the material strip and is used for punching and forming the right side of the sample, and a left punching area that is located on the punching punch and is located on a side away from the right punching area. The lower die is provided with a blanking cavity that is adapted to the shape of the punching punch. The material strip is inserted into the side cavity through the material strip, and the mold is opened and closed in the direction of the material strip extending out of the side cavity through external step feeding. After the mold has been opened and closed twice, a single uncurled sample material is formed on the material strip by punching.

8. The terminal stamping die according to claim 7, characterized in that: The basic stamping area includes a sample crimping part chamfer punch distributed on the upper die and located on one side of the blanking punch, and a crimping part friction strip punch distributed on the upper die and located on the side away from the blanking punch. A positioning plate for positioning the material strip during the stamping stage of the sample crimping part chamfer punch is formed on the lower die, and a first pad distributed on the lower die and used to pad under the material strip during the opening and closing stage of the upper and lower dies to form a docking with the crimping part friction strip punch.

9. The terminal stamping die according to claim 6, wherein: The pre-bending area of ​​the sample edge, the first pre-bending and gathering area on both sides of the plug-in part, the secondary pre-bending and gathering area on both sides of the plug-in part, the crimping part forming area, and the plug-in part forming area all include a bending and forming extrusion punch formed between the chamfer punch of the sample crimping part at the upper die and the side cavity extending from the material strip, and an extrusion docking block opened at the lower die and respectively adapted to the several bending and forming extrusion punches. During the opening and closing stage of the upper and lower dies, the material strip is extruded and changed at the bending and forming extrusion punch and the extrusion docking block, thereby bending and forming the sample on the material strip.

10. The terminal stamping die according to claim 8, characterized in that: The forming of the crimping portion friction strip punch also includes the first pre-bending forming between the connecting portion and the plug-in portion formed between the crimping portion and the plug-in portion of the single uncurled sample.

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