A stamping die for precision terminal stamping parts

Abstract

This utility model relates to the field of terminal stamping die technology, and discloses a stamping die for precision terminal stamping parts, including a plug block and a U-shaped limiting frame. The plug block has two longitudinal shafts fixed by bolts, and two lower punches are rotatably sleeved on the outer sides of the two longitudinal shafts. After the plug block is inserted into the plug slot, it is fastened to the U-shaped limiting frame by a fastener. By unlocking the fastener, the plug block is released from the fastening lock of the U-shaped limiting frame, and the plug block and the two lower punches on it can be removed. The two lower punches are released from the restriction of the U-shaped limiting frame and can be freely flipped outward, so that the gap between the two lower punches is widened, so that the spring A connecting the two lower punches can be easily disassembled and replaced through the widened gap. The spring A can be easily replaced by removing the plug block and lower punches by unlocking the fastener, and the maintenance is simple.

Description

Technical Field

[0001] This utility model belongs to the field of terminal stamping die technology, and specifically relates to a stamping die for precision terminal stamping parts. Background Technology

[0002] As attached Figure 1 As shown, the terminal forming die of the prior art stamping die uses an upper punch and a lower punch to press and bond the originally V-shaped terminal head together, that is, to press and bond the left and right sides of the V-shaped terminal head together. The lower punch of the prior art consists of two mirror symmetrical lower punches that are fitted on the outer side of the longitudinal shaft. The longitudinal shaft has mounting holes and the longitudinal shaft fixes the lower punches in the U-shaped limit frame by screws. The two lower punches are connected by a spring A. When the upper punch moves down, it presses the two lower punches inward, thereby pressing the spring, so that the terminal located between the two lower punches is pressed and bonded together from the original V-shaped terminal head.

[0003] However, when the spring A has been used for a long time and its compression and rebound performance is poor, it needs to be replaced. In this case, the screw on the lower punch needs to be removed, the two lower punches need to be removed, and then the spring A needs to be removed. Only after the spring A and the lower punch are reinstalled can the replacement be achieved. The operation is cumbersome and involves the removal of the screw, which is time-consuming and laborious. Utility Model Content

[0004] The present invention aims to solve the technical problem in the prior art where replacing spring A is cumbersome, requiring the disassembly of the screw and the disassembly of the lower punch one by one, which consumes a lot of time and manpower, resulting in low mold maintenance efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stamping die for precision terminal stamping parts, comprising:

[0007] The plug-in block has two longitudinal shafts fixed by bolts. The outer sides of the two longitudinal shafts are rotatably fitted with two lower punches that press and fit the two sides of the V-shaped terminal head into contact.

[0008] The U-shaped limiting frame is used to limit the outer sides of the two lower punches. After the plug-in block is inserted into the plug-in slot, it is fastened to the U-shaped limiting frame by fasteners.

[0009] By unlocking the fastener, the plug block is released from the locking mechanism of the U-shaped limiting frame, allowing the plug block and its two lower punches to be removed. The two lower punches are released from the restriction of the U-shaped limiting frame and can be freely flipped outward, widening the gap between the two lower punches. This widened gap facilitates the removal and replacement of the spring A connecting the two lower punches.

[0010] Preferably, the bottom of the U-shaped limiting frame, located below the two lower punches, is provided with a limiting block to limit the rotation angle of the two lower punches during the punching action.

[0011] Preferably, the bottom edge line of the plug-in block is consistent with the upper limit groove line of the limit block. After the plug-in block is guided and slid through the limit block, it is inserted into the contoured plug hole opened on the U-shaped limit frame to cooperate with the plug-in block.

[0012] Preferably, the back of the U-shaped limiting frame is provided with an installation groove, and the fastener is installed in the installation groove.

[0013] As a preferred embodiment, the fastener includes a lifting plate, a fastening post fixed to the bottom of the lifting plate and passing through the mounting groove and extending into the contoured insertion hole, and a spring B connecting the lifting plate and the top wall of the mounting groove.

[0014] After the plug-in block is inserted into the conformal socket, it pushes the lifting plate downward under the rebound action of spring B, and the buckle at the bottom of the lifting plate is inserted into the buckle groove opened on the plug-in block.

[0015] Preferably, the inner side of the mounting groove is provided with two sets of guide rods arranged symmetrically on the left and right, and the lifting plate is sleeved on the outer side of the guide rods and moves up and down in coordination with the guide rods.

[0016] Preferably, the lifting plate is equipped with a handheld position for easy manipulation of its height.

[0017] Preferably, the outer side of the buckle post is provided with a number of protrusions arranged in a ring at equal intervals, and the outer edge of the buckle groove is provided with a number of protrusions that are inserted and positioned one by one with the protrusions.

[0018] Preferably, the two mounting plates at both ends of spring A are fixed to the positioning slots opened on the two lower punches by screws.

[0019] Compared with the prior art, the technical effects and advantages of this utility model are:

[0020] 1. This precision terminal stamping part uses a stamping die to unlock the plug block from the U-shaped limiting frame, allowing the plug block and its two lower punches to be removed. The two lower punches, freed from the U-shaped limiting frame, can freely rotate outwards, widening the gap between them. This allows for easy removal and replacement of the spring A connecting the two lower punches, avoiding complex operations such as disassembling the screw and greatly improving the convenience of spring A replacement.

[0021] 2. The handheld position on the lifting plate allows operators to manually move the lifting plate to control the unlocking and locking of the fasteners when replacing spring A or performing mold maintenance, without the need for additional tools, further improving the convenience of operation.

[0022] 3. The fastener consists of a lifting plate, a fastening post, and spring B. Working in conjunction with the guide rod within the mounting slot, it ensures the fastening post accurately inserts into the slot, guaranteeing the stability of the connection between the plug-in block and the U-shaped limiting frame. Simultaneously, the protrusions on the outer side of the fastening post correspond one-to-one with the protrusions on the outer edge of the fastening slot, further enhancing the stability of the connection and reducing mold failures caused by inaccurate connection. The bottom edge line of the plug-in block aligns with the upper limit groove line of the limiting block. The guide slides through the limiting block and inserts into the contoured insertion hole, providing precise guidance for the plug-in block installation. This ensures accurate installation and prevents movement or wobbling after positioning, guaranteeing the positional accuracy of the lower punch. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the prior art;

[0024] Figure 2 This is a first-view diagram of the present invention;

[0025] Figure 3 This is a second-view diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the plug-in block and the lower punch of this utility model after being disassembled from the U-shaped limiting frame;

[0027] Figure 5 This is a schematic diagram of the structure of spring A after it has been removed from the lower punch.

[0028] Figure 6 This is a schematic diagram of the plug-in block and the lower punch of this utility model;

[0029] Figure 7 This is a structural schematic diagram of the U-shaped limiting frame and fastener of this utility model;

[0030] Figure 8 This is a schematic diagram of the buckle groove of this utility model;

[0031] Figure 9 This is a structural schematic diagram of the lifting plate and the fastening column of this utility model.

[0032] In the diagram: 1. Insertion block; 2. Longitudinal shaft; 3. Lower punch; 4. U-shaped limit frame; 5. Spring A; 6. Limit block; 7. Limit groove; 8. Contour insertion hole; 9. Mounting groove; 10. Fastener; 11. Lifting plate; 12. Buckle post; 13. Spring B; 14. Guide rod; 15. Handheld position; 16. Protrusion block; 17. Protrusion groove; 18. Mounting plate; 19. Positioning groove; 20. Buckle groove; 21. Screw. Detailed Implementation

[0033] 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.

[0034] The following combination Figures 2 to 9 This application will be described in further detail.

[0035] This application discloses a stamping die for precision terminal stamping parts, including a plug block 1 and a U-shaped limiting frame 4. The plug block 1 is fixed with two longitudinal shafts 2 by bolts. The outer surfaces of the two longitudinal shafts 2 are rotatably sleeved with two lower punches 3 that cooperate to stamp and contact the two sides of the V-shaped terminal head. The U-shaped limiting frame 4 is used to limit the outer surfaces of the two lower punches 3. After the plug block 1 is inserted into the plug groove, it is fastened together with the U-shaped limiting frame 4 by fasteners 10.

[0036] By unlocking the fastener 10, the plug-in block 1 is released from the locking mechanism of the U-shaped limiting frame 4, allowing the plug-in block 1 and its two lower punches 3 to be removed. The two lower punches 3, freed from the constraint of the U-shaped limiting frame 4, can freely rotate outwards, widening the gap between them. This allows for easier removal and replacement of the spring A5 connecting the two lower punches 3 through the increased gap. The two mounting plates 18 at both ends of the spring A5 are respectively fixed to the positioning grooves 19 opened on the two lower punches 3 by screws.

[0037] By unlocking the fastener 10, the plug block 1 along with the two lower punches 3 can be removed. After the lower punches 3 are freed from the U-shaped limit frame 4, they can freely flip outward, widening the gap between the two punches and facilitating the disassembly and replacement of the spring A5. This avoids the tedious operation of disassembling the screw and disassembling the lower punches 3 one by one in the traditional method, saving time and labor costs and improving the efficiency of mold maintenance.

[0038] The mounting plates 18 at both ends of the spring A5 are fixed in the positioning grooves 19 of the two lower punches 3 by screws. This installation method ensures the stability of the spring A5 during use, prevents the spring from shifting or falling off, ensures that the spring can play its elastic role normally during the stamping process, and maintains the normal operation of the mold.

[0039] At the bottom of the U-shaped limiting frame 4, and below the two lower punches 3, there is a limiting block 6 that limits the rotation angle of the two lower punches 3 during the punching action. The bottom edge line of the plug-in block 1 is consistent with the line of the upper limit groove 7 of the limiting block 6. After the plug-in block 1 slides through the limiting block 6, it is inserted into the contoured insertion hole 8 opened on the U-shaped limiting frame 4 to cooperate with the plug-in block 1.

[0040] The limiting block 6 at the bottom of the U-shaped limiting frame 4 can limit the rotation angle of the two lower punches 3 during the stamping action, so that the lower punches 3 rotate at the specified angle, ensuring the accuracy and consistency of the stamping and bonding of the two sides of the V-shaped terminal head, and improving the quality of the precision terminal stamping parts.

[0041] The bottom edge line of the insert block 1 is consistent with the upper limit groove 7 line of the limit block 6, and can be guided to slide through the limit block 6 and insert into the contoured insertion hole 8. This design provides precise guidance for the installation of the insert block 1, ensuring that the insert block 1 is accurately installed in the U-shaped limit frame 4, thus ensuring the positional accuracy of the lower punch 3 and improving the working performance of the entire stamping die. Moreover, the insert block 1 is not easy to move or wobble after being positioned and inserted.

[0042] The back of the U-shaped limiting frame 4 is provided with a mounting groove 9, and the fastener 10 is installed in the mounting groove 9. The fastener 10 includes a lifting plate 11, a fastening post 12 fixed to the bottom of the lifting plate 11, passing through the mounting groove 9 and extending into the contoured insertion hole 8, and a spring B13 connecting the lifting plate 11 and the top wall of the mounting groove 9; after the insertion block 1 is inserted into the contoured insertion hole 8, it pushes the lifting plate 11 downward under the rebound action of the spring B13, and the fastening post 12 at the bottom of the lifting plate 11 is inserted into the fastening groove 20 opened on the insertion block 1. The inner side of the mounting groove 9 is provided with two sets of guide rods 14 symmetrically arranged on the left and right, and the lifting plate 11 is sleeved on the outer side of the guide rods 14 and moves up and down in coordination with the guide rods 14.

[0043] The U-shaped limiting frame 4 has an installation groove 9 on its back for installing fasteners 10. This ensures that the installation of fasteners 10 does not affect the normal operation of other parts of the mold, thus maintaining the compactness and rationality of the overall mold structure. Fastener 10 consists of a lifting plate 11, a fastening post 12, and a spring B13. After the plug-in block 1 is inserted into the contoured insertion hole 8, the spring B13 rebounds, causing the fastening post 12 to insert into the fastening groove 20 to achieve fastening. At the same time, the guide rod 14 in the installation groove 9 provides guidance for the lifting of the lifting plate 11, ensuring that the fastening post 12 is accurately inserted into the fastening groove 20. This guarantees the stability and reliability of the fastening between the plug-in block 1 and the U-shaped limiting frame 4, preventing loosening during the stamping process.

[0044] The lifting plate 11 is equipped with a handheld position 15 for easy manipulation. This handheld position 15 allows operators to manually move the lifting plate 11 to unlock and lock the fastener 10. When replacing the spring A5 or performing mold maintenance, operators can easily control the fastener 10 via the handheld position 15 without the need for additional tools, thus improving operational convenience and efficiency.

[0045] The outer surface of the snap-fit ​​post 12 is provided with a plurality of protrusions 16 arranged in a ring at equal intervals, and the outer edge of the snap-fit ​​groove 20 is provided with a plurality of protrusions 17 arranged in a ring at equal intervals, corresponding one-to-one with the protrusions 16 for insertion and positioning. The protrusions 16 on the outer surface of the snap-fit ​​post 12 and the protrusions 17 on the outer edge of the snap-fit ​​groove 20 are inserted and positioned one-to-one. During the insertion of the snap-fit ​​post 12 into the snap-fit ​​groove 20, the cooperation between the protrusions 16 and the protrusions 17 ensures accurate insertion of the snap-fit ​​post 12, achieving precise positioning. This further enhances the stability of the snap-fit ​​between the insertion block 1 and the U-shaped limiting frame 4, reduces mold failures caused by inaccurate snap-fit, and improves the service life and operational reliability of the mold.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A press die for precision terminal stampings, characterized by, include: The plug block (1) has two longitudinal shafts (2) fixed by bolts. The outer sides of the two longitudinal shafts (2) are rotatably fitted with two lower punches (3) that press and fit together the two sides of the V-shaped terminal head. The U-shaped limiting frame (4) is used to limit the outer sides of the two lower punches (3). After the plug-in block (1) is inserted into the plug-in slot, it is fastened together with the U-shaped limiting frame (4) by the fastener (10). By unlocking the fastener (10), the plug block (1) is released from the locking of the U-shaped limit frame (4), and the plug block (1) along with the two lower punches (3) on it can be removed. The two lower punches (3) are released from the restriction of the U-shaped limit frame (4) and can freely flip outward, so that the gap between the two lower punches (3) is widened, so that the spring A (5) connecting the two lower punches (3) can be disassembled and replaced through the widened gap.

2. The stamping die for a precision terminal stamping according to claim 1, characterized by: At the bottom of the U-shaped limiting frame (4) and below the two lower punches (3), there is a limiting block (6) that limits the rotation angle of the two lower punches (3) during the punching action.

3. The stamping die for a precision terminal stamping according to claim 2, characterized by: The bottom edge line of the plug-in block (1) is consistent with the line of the upper limit groove (7) of the limit block (6). After the plug-in block (1) slides through the limit block (6), it is inserted into the contoured plug hole (8) opened on the U-shaped limit frame (4) to cooperate with the plug-in block (1).

4. The stamping die for a precision terminal stamping according to claim 3, characterized by: The back of the U-shaped limiting frame (4) is provided with an installation groove (9), and the fastener (10) is installed in the installation groove (9).

5. The stamping die for a precision terminal stamping according to claim 4, characterized by: The fastener (10) includes a lifting plate (11), a fastening post (12) fixed to the bottom of the lifting plate (11) and passing through the mounting groove (9) and extending into the contoured insertion hole (8), and a spring B (13) connecting the lifting plate (11) and the top wall of the mounting groove (9); After the plug-in block (1) is inserted into the conformal socket (8), it pushes the lifting plate (11) down under the rebound action of the spring B (13), and the buckle (12) at the bottom of the lifting plate (11) is inserted into the buckle groove (20) opened on the plug-in block (1).

6. The stamping die for a precision terminal stamping according to claim 5, characterized by: The mounting slot (9) has two sets of guide rods (14) arranged symmetrically on the left and right sides. The lifting plate (11) is sleeved on the outer side of the guide rod (14) and moves up and down in coordination with the guide rod (14).

7. A stamping die for precision terminal stamping parts according to claim 5, characterized in that: The lifting plate (11) is provided with a hand position (15) for easy lifting and lowering.

8. A stamping die for precision terminal stamping parts according to claim 5, characterized in that: The outer side of the buckle post (12) is provided with a number of protrusions (16) arranged in a ring at equal intervals, and the outer edge of the buckle groove (20) is provided with a number of protrusions (17) that are inserted and positioned one by one with the protrusions (16).

9. A stamping die for precision terminal stamping parts according to claim 1, characterized in that: The two mounting plates (18) at both ends of spring A (5) are fixed to the positioning grooves (19) opened on the two lower punches (3) by screws.

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