Connector terminal punching die

Abstract

The utility model belongs to the technical field of punching dies, and discloses a connector terminal punching die which comprises an upper die and a lower die, a plurality of groups of guide rods are arranged between the upper die and the lower die, a punch is arranged in the upper die, the upper die comprises an upper die base, a punch limiting block and a punch pocket plate, the punch comprises a punch and a punch rod, and the punch rod is arranged on the punch limiting block. The punch comprises a thickened section and a punching type end, the lower die comprises a lower die base and a female die, a concave material cavity is formed in the center of the female die, a punching type concave part corresponding to the punching type end is formed in the bottom of the concave material cavity, a penetrating type discharging opening corresponding to the punching type concave part is formed in the bottom of the female die, and the upper die is a movable die and installed on the upper portion of a punching machine. The sheet-shaped metal terminal punching device is compact and reasonable in structural design, can be installed on the punching machine to conduct punching operation on sheet-shaped metal terminals, is high in punching production efficiency, is easy to maintain, does not need to disassemble the whole die in the maintenance operation, can adjust the diameter of punched holes, and is wide in die applicability.

Description

A connector terminal punching die Technical Field

[0001] This utility model relates to the field of punching die technology, specifically a connector terminal punching die. Background Technology

[0002] Connectors, as indispensable basic components in electronic devices, play a crucial role in connecting circuits and transmitting signals during the manufacturing of various electronic products. Connector terminal punching, a critical step in connector production, directly impacts connector performance, as well as the cost and schedule of the entire production process, in terms of its processing quality and efficiency. However, traditional connector terminal punching equipment has revealed numerous problems that urgently need to be addressed in practical applications.

[0003] Existing punching equipment presents significant maintenance challenges after punch damage. As the core component of the punching die, the punch inevitably fails due to wear and fatigue during frequent punching operations. However, existing systems often require disassembling the entire die to replace or maintain the punch. This process is not only cumbersome and time-consuming, but also prone to causing a decrease in die precision during disassembly and reassembly, affecting the quality of subsequent punching operations. Frequent die disassembly and maintenance severely impact production efficiency and increase production costs for enterprises.

[0004] Furthermore, traditional punching dies have poor versatility. Even for connector terminals of the same size and shape, new dies are still required when different hole diameters need to be punched. This not only increases the manufacturing cost of the dies but also extends the product production cycle. For small-batch, multi-variety connector production, the adaptability of such dies is clearly insufficient and cannot meet the diverse needs of the market. Summary of the Invention

[0005] Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a connector terminal punching die, which solves the problems mentioned in the background art, such as the difficulty of maintenance after the punch is damaged during punching operations.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a connector terminal punching die, comprising an upper die and a lower die, with multiple sets of guide rods provided between the upper die and the lower die, the upper die including a detachable punch cover, a punch including a punch head and a punch rod, the punch being mounted on the upper die through the punch cover, and a die being provided in the lower die.

[0009] Preferably, the upper die further includes an upper die base and a punch limiting block. One end of multiple sets of guide rods is fixedly connected to the upper die base. A punch limiting block is provided on the side of the upper die base adjacent to the guide rods. A punch pocket is provided on the side of the punch limiting block opposite to the upper die base. A punch rod limiting hole is opened in the center of the upper die base. A punch limiting cavity coaxial with the punch rod limiting hole is opened in the center of the punch limiting block. A punch hole coaxial with the punch limiting cavity is opened in the center of the punch pocket.

[0010] Preferably, the punch rod is inserted into the punch rod limiting hole, the punch head is installed between the punch head limiting block and the punch head cover, and the end of the punch rod abuts against the punch head.

[0011] Preferably, the punch includes a thickened section and a punched end, the thickened section being slidably engaged in the punch limiting cavity, and the punched end being inserted into the punch hole.

[0012] Preferably, the punch plate has four sets of plate fixing posts at its four corners, and four sets of fixing holes are provided on the punch plate. One end of the plate fixing post is welded to the upper mold base, and the other end of the plate fixing post is inserted into the fixing hole. A threaded hole is provided at the end of the plate fixing post, and a convex screw is threaded into the threaded hole and is stuck in the fixing hole.

[0013] Preferably, the lower mold includes a lower mold base and a die. The lower mold base is fixedly connected to one end of multiple guide rods away from the upper mold. A die is provided on the side of the lower mold base near the guide rods. A concave material cavity is opened in the center of the die. A punching recess corresponding to the punching end is opened at the bottom of the concave material cavity. A through discharge port corresponding to the punching recess is opened at the bottom of the die.

[0014] Preferably, the four corners of the concave mold are provided with clearance holes for the bracket fixing posts corresponding to the bracket fixing posts.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a connector terminal punching die, which has the following advantages:

[0017] 1. This connector terminal punching die is equipped with an upper die, a lower die, a punch, and a die. It can be installed on a punching machine to punch sheet-shaped metal terminals. The punching production efficiency is high, and the device is easy to maintain. Maintenance does not require disassembling the entire die. The punching hole diameter can be adjusted, and the die has wide applicability.

[0018] 2. It is equipped with a punch cover and a uniquely shaped punch. The punch cover fixes the punch in the punch limiting cavity to prevent it from falling out. The punch can be removed from the punch limiting cavity by removing the punch cover, which is convenient for replacement and maintenance after the punch is damaged. The maintenance operation does not require disassembling the mold, which is simple and convenient. It is also easy to replace punches of different sizes and models, which greatly improves the versatility of the mold and has certain economic benefits.

[0019] 3. It is equipped with a through-type discharge port, which can discharge the round waste material after punching from the bottom. The waste discharge operation is simple and convenient, which is more convenient than the common waste discharge method. There is no need to set up a waste cleaning mechanism, which greatly simplifies the waste discharge process and improves production efficiency. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a schematic diagram of the upper mold and punch structure of this utility model;

[0022] Figure 3 is a schematic diagram of the punch plate and the fixing column structure of the present invention.

[0023] Figure 4 is a schematic diagram of the lower mold structure of this utility model.

[0024] In the diagram: 1. Upper die; 2. Lower die; 3. Guide rod; 4. Punch; 5. Die; 6. Upper die base; 7. Punch limiting block; 8. Punch cover plate; 9. Punch rod limiting hole; 10. Punch limiting cavity; 11. Punch hole; 12. Punch; 13. Punch rod; 14. Thickened section; 15. Punch-shaped end; 16. Cover plate fixing post; 17. Fixing port; 18. Threaded hole; 19. Protruding head screw; 20. Lower die base; 21. Concave material cavity; 22. Punch-shaped cavity; 23. Through-type discharge port; 24. Cover plate fixing post clearance hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4. This utility model provides a technical solution:

[0027] A connector terminal punching die includes an upper die 1 and a lower die 2, with multiple sets of guide rods 3 arranged between the upper die 1 and the lower die 2. The upper die 1 includes a detachable punch cover 8, and a punch 4 is provided inside the upper die 1. The punch 4 includes a punch head 12 and a punch rod 13. The punch head 12 is mounted on the upper die 1 through the punch cover 8. A die 5 is provided inside the lower die 2. The upper die 1 is a moving die mounted on the upper part of the punching machine, and the lower die 2 is a fixed die mounted on the lower part of the punching machine. The upper die 1 can move downward together with the hydraulic components of the punching machine. The punch 4 is powered by hydraulic pressure applied by the punching machine to cooperate with the die 5 to perform punching operations on the metal terminals placed on the die 5.

[0028] Furthermore, the upper mold 1 also includes an upper mold base 6 and a punch limiting block 7. One end of multiple sets of guide rods 3 is fixedly connected to the upper mold base 6. A punch limiting block 7 is provided on the side of the upper mold base 6 near the guide rods 3. A punch pocket plate 8 is provided on the side of the punch limiting block 7 away from the upper mold base 6. A punch rod limiting hole 9 is opened in the center of the upper mold base 6. A punch limiting cavity 10 coaxial with the punch rod limiting hole 9 is opened in the center of the punch limiting block 7. A punch hole 11 coaxial with the punch limiting cavity 10 is opened in the center of the punch pocket plate 8.

[0029] Furthermore, the punch rod 13 is inserted into the punch rod limiting hole 9, and the punch 12 is installed between the punch limiting block 7 and the punch cover plate 8, with the end of the punch rod 13 abutting against the punch 12. The punch rod 13 is connected to the hydraulic components of the punching machine, and its main function is to apply pressure to hold the punch 12 in place, so that the punching end 15 of the punch 12 breaks the material and shears it to complete the punching operation.

[0030] Furthermore, the punch 12 includes a thickened section 14 and a punched end 15. The thickened section 14 is slidably engaged within the punch limiting cavity 10, and the punched end 15 is inserted into the punch hole 11. The punch 12 is usually available in multiple models, with different sizes of the punched end 15 for each model. The punching diameter can be adjusted by replacing different punches 12.

[0031] Furthermore, four sets of plate fixing posts 16 are provided at the four corners of the punch plate 8, and four sets of fixing ports 17 are provided on the punch plate 8. One end of the plate fixing post 16 is welded to the upper mold base 6, and the other end of the plate fixing post 16 is inserted into the fixing port 17. A threaded hole 18 is provided at the end of the plate fixing post 16, and a convex head screw 19 is threaded into the threaded hole 18, and the convex head screw 19 is stuck in the fixing port 17. The diameter of the protruding head of the convex head screw 19 is larger than that of the bracket fixing post 16. Due to the cooperation between the fixing port 17 and the convex head screw 19, the punch bracket 8 can slide on the bracket fixing post 16, and the punch bracket 8 cannot move in the opposite direction to disengage. It can hold the punch 12 to prevent it from falling. When the punch 12 is damaged or the punching size needs to be changed, the connection between the convex head screw 19 and the bracket fixing post 16 can be loosened by screwing. After removing the convex head screw 19, the punch bracket 8 can fall from below, and the punch 12 can be removed for replacement. If the punching hole diameter needs to be changed or adjusted, the punch bracket 8 that matches the punch 12 needs to be replaced at the same time.

[0032] Furthermore, the lower mold 2 includes a lower mold base 20 and a die 5. Multiple sets of guide rods 3 are fixedly connected to the lower mold base 20 at the ends away from the upper mold 1. The die 5 is provided on the side of the lower mold base 20 near the guide rods 3. A concave material cavity 21 is opened in the center of the die 5. A punching recess 22 corresponding to the punching end 15 is opened at the bottom of the concave material cavity 21. A through discharge port 23 corresponding to the punching recess 22 is opened at the bottom of the die 5. During production, the metal sheet electrode terminals are snapped into the concave material cavity 21. The punched end 15 will press against the material to shear it and break it, thus completing the punching operation. Since the electrode sheet terminals are generally punched with round holes for subsequent connector assembly and terminal fixing, the punched concave 22 and the through-type discharge port 23 are both set to be round. The special nature of the round shape makes it difficult for waste to get stuck on the side wall of the channel at any angle, so the waste can be discharged by falling. If it is an irregularly shaped punched side, it is recommended to use a cleaning mechanism to remove waste. The bottom center of the fixed mold installation position of the punching machine is provided with a discharge channel, so that the through-type discharge port 23 is aligned with the discharge channel, and the waste after punching is directly discharged and collected.

[0033] Furthermore, the die 5 has four corners with relief holes 24 corresponding to the relief plate fixing posts 16. When punching is performed, one side of the punch relief plate 8 abuts against the die 5, and the other side of the punch relief plate 8 abuts against the punch limiting block 7. The punch relief plate 8 slides on the relief plate fixing post 16, and the end of the relief plate fixing post 16 extends out from below the punch relief plate 8. The relief holes 24 are used to prevent the relief plate fixing post 16 from hitting the die 5, so as to facilitate the punching operation.

[0034] Structural Description:

[0035] Upper die 1: The movable part of the die, installed on the upper part of the punching machine, and cooperates with the lower die 2 to complete the punching operation. It contains punch 4 and related components.

[0036] Lower die 2: The fixed part of the die, installed at the bottom of the punching machine, used to place metal terminals, and works in conjunction with the upper die 1, including the die cavity 5 and the lower die base 20;

[0037] Guide rod 3: connects the upper die 1 and the lower die 2, ensuring that the upper die 1 is precisely aligned with the lower die 2 during the movement, thus ensuring the punching accuracy;

[0038] Punch 4: Located inside the upper die 1, it consists of punch 12 and punch rod 13. Under the hydraulic action of the punching machine, it works with the die 5 to punch the metal terminal.

[0039] Die 5: Set inside the lower die 2, with a concave material cavity 21 in the center for placing metal terminals, and a punched recess 22 and a through discharge port 23 at the bottom, which cooperate with the punch 4 to punch holes and discharge waste material;

[0040] Upper die base 6: The basic component of the upper die 1, connecting the guide rod 3, and providing an installation position for the punch limit block 7 and punch cover plate 8, etc.

[0041] Punch limiting block 7: Installed on one side of the upper die base 6, with a punch limiting cavity 10 in the center, used to limit the movement of punch 12 and provide support;

[0042] Punch pocket plate 8: Located on the side of punch limit block 7 away from upper mold base 6, with punch hole 11 in the center and pocket plate fixing posts 16 at the four corners, used to fix punch 12 and facilitate its replacement.

[0043] Punch pin limiting hole 9: It is opened in the center of the upper die base 6 and is used to insert punch 12 and limit the position of punch 12;

[0044] Punch limiting cavity 10: It is opened in the center of punch limiting block 7, coaxial with punch rod limiting hole 9, and works with the thickened section 14 of punch 12 to limit the movement trajectory of punch 12;

[0045] Punch hole 11: It is opened in the center of punch cover plate 8, coaxial with punch limiting cavity 10, and allows punching end 15 of punch 12 to pass through;

[0046] Punch 12: Part of punch 4, including thickened section 14 and punched end 15, punches holes in metal terminals under the push of punch rod 13;

[0047] Punch 13: Part of punch 4, connected to the hydraulic assembly of the punching machine, transmits pressure to punch 12, and pushes punch 12 to punch holes;

[0048] Bold section 14: Part of the punch 12, which is slidably engaged in the punch limiting cavity 10 to increase the stability of the punch 12 and restrict its movement;

[0049] Punching end 15: The working part of punch 12, used to break through the metal terminal to complete the punching;

[0050] Punch plate fixing post 16: set at the four corners of the punch plate 8, one end is welded to the upper mold base 6, and the other end is inserted into the fixing port 17 of the punch plate 8 to fix the punch plate 8.

[0051] Fixed opening 17: It is opened on the punch pocket plate 8 and cooperates with the pocket plate fixing post 16 to allow the punch pocket plate 8 to slide on it, while preventing it from detaching in the opposite direction.

[0052] Threaded hole 18: Opened at the end of the bracket fixing post 16, used to connect the convex screw 19 and fix the punch bracket 8;

[0053] 19: The screw is threaded into the threaded hole 18 of the bracket fixing post 16 and is locked in the fixing port 17 to prevent the punch bracket 8 from falling off and to facilitate the replacement of the punch 12.

[0054] Lower mold base 20: The basic component of the lower mold 2, connecting the guide rod 3, and providing an installation position for the die 5;

[0055] Concave cavity 21: Located in the center of die 5, it is used to engage metal sheet-shaped electrode terminals and provide positioning for punching;

[0056] Punching recess 22: It is formed at the bottom of the concave material cavity 21, corresponding to the punching end 15, and works with the punch 12 to complete the punching;

[0057] Through-type discharge port 23: It is opened at the bottom of the die cavity 5, corresponding to the punching type cavity 22, and is used to discharge the waste material generated by punching.

[0058] The relief holes 24 for the plate fixing posts are opened at the four corners of the die 5 and correspond to the plate fixing posts 16 to prevent the plate fixing posts 16 from hitting the die 5 and to ensure that the punching operation is carried out smoothly.

[0059] Working principle: During mold installation, the upper mold 1, as the moving mold, is installed at the top of the punching machine, and the lower mold 2, as the fixed mold, is installed at the bottom of the punching machine. The upper mold 1 and the lower mold 2 are connected by multiple sets of guide rods 3 to ensure that the upper mold 1 maintains a precise relative position with the lower mold 2 during movement. Before punching, the metal sheet electrode terminals are snapped into the concave material cavity 21 of the die 5. The punch 4 is located inside the upper mold 1, with the punch rod 13 inserted into the punch rod limiting hole 9, and the punch head 12 installed between the punch head limiting block 7 and the punch head cover 8, with the end of the punch rod 13 abutting against the punch head 12. At the same time, the thickened section 14 of the punch head 12 is slidably snapped into the punch limiting cavity 10, and the punching end 15 is inserted into the punch hole 11. The punch cover 8 is connected to the upper die base 6 via four corner cover fixing posts 16. The punch cover 8 is fixed to the cover fixing posts 16 by protruding screws 19 to prevent the punch 12 from falling off. When the punching operation begins, the hydraulic components of the punching machine apply pressure to the punch rod 13 of the upper die 1, which transmits the pressure to the punch 12. Under pressure, the punch 12 moves downwards with the punching end 15, abutting against the metal terminal in the concave material cavity 21. As the punch 12 continues to press down, the punching end 15 breaks through the metal terminal, causing it to shear and fracture, completing the punching operation. During this process, the guide rod 3 guides the movement of the upper die 1, ensuring that the punch 12 accurately engages with the punching cavity 22 on the die 5, ensuring punching accuracy. After punching is completed, the waste material is discharged through the through-hole discharge port 23 at the bottom of the die 5. Since the electrode terminals are typically punched with circular holes, the punching recess 22 and the through-type discharge port 23 are also designed to be circular. Under the action of gravity, the waste material can be smoothly discharged through the discharge channel and fall into the collection device. When the punch 12 is damaged or the punching size needs to be changed, simply loosen the connection between the convex screw 19 and the cam plate fixing post 16, remove the convex screw 19, and the punch cam plate 8 will fall from below, making it easy to remove the punch 12 for replacement. If the punching diameter needs to be adjusted, the punch cam plate 8 that matches the punch 12 must also be replaced. In addition, the cam plate fixing post clearance holes 24 at the four corners of the die 5 can prevent the cam plate fixing post 16 from pressing against the die 5, ensuring that the punching operation is carried out smoothly.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connector terminal piercing die comprising an upper die (1) and a lower die (2), characterized by: Multiple sets of guide rods (3) are provided between the upper die (1) and the lower die (2). The upper die (1) includes a detachable punch cover (8). A punch (4) is provided inside the upper die (1). The punch (4) includes a punch (12) and a punch rod (13). The punch (12) is installed on the upper die (1) through the punch cover (8). A die (5) is provided inside the lower die (2).

2. The connector terminal piercing die according to claim 1, characterized by: The upper mold (1) also includes an upper mold base (6) and a punch limiting block (7). One end of multiple guide rods (3) is fixedly connected to the upper mold base (6). A punch limiting block (7) is provided on the side of the upper mold base (6) near the guide rods (3). A punch pocket (8) is provided on the side of the punch limiting block (7) away from the upper mold base (6). A punch rod limiting hole (9) is opened in the center of the upper mold base (6). A punch limiting cavity (10) coaxial with the punch rod limiting hole (9) is opened in the center of the punch limiting block (7). A punch hole (11) coaxial with the punch limiting cavity (10) is opened in the center of the punch pocket (8).

3. The connector terminal punching die according to claim 2, characterized in that: The punch rod (13) is inserted into the punch rod limiting hole (9), and the punch (12) is installed between the punch limiting block (7) and the punch cover (8). The end of the punch rod (13) abuts against the punch (12).

4. A connector terminal punching die according to claim 3, characterized in that: The punch (12) includes a thickened section (14) and a punched end (15). The thickened section (14) is slidably engaged in the punch limiting cavity (10), and the punched end (15) is inserted into the punch hole (11).

5. A connector terminal punching die according to claim 2, characterized in that: The punch plate (8) has four sets of plate fixing posts (16) at its four corners. The punch plate (8) has four sets of fixing ports (17). One end of the plate fixing post (16) is welded to the upper mold base (6), and the other end of the plate fixing post (16) is inserted into the fixing port (17). The end of the plate fixing post (16) has a threaded hole (18). A convex head screw (19) is threaded into the threaded hole (18), and the convex head screw (19) is stuck in the fixing port (17).

6. A connector terminal punching die according to claim 4, characterized in that: The lower mold (2) includes a lower mold base (20) and a die (5). Multiple sets of guide rods (3) are fixedly connected to the lower mold base (20) at one end away from the upper mold (1). The die (5) is provided on the side of the lower mold base (20) near the guide rods (3). A concave material cavity (21) is opened in the center of the die (5). A punching cavity (22) corresponding to the punching end (15) is opened at the bottom of the concave material cavity (21). A through discharge port (23) corresponding to the punching cavity (22) is opened at the bottom of the die (5).

7. A connector terminal punching die according to claim 5, characterized in that: The four corners of the die (5) are provided with clearance holes (24) for the bracket fixing posts (16) corresponding to the bracket fixing posts.

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