Stamping die with replaceable stamping die head

Abstract

The utility model relates to the technical field of stamping dies, and discloses a stamping die with a replaceable stamping die head, which comprises a main body plate and a connecting plate, the upper end of the main body plate is provided with a lower die, the inner wall of the connecting plate is fixedly connected with a fixing plate, and the lower end of the fixing plate is provided with an upper die holder. An operator rotates a handle to drive a threaded block to rotate along threads on the inner wall of a clamping rod, a telescopic rod and a third reset spring synchronously contract along with rotation of the threads, a sliding block is driven to slide in a first groove, and when a fixed disc makes contact with the sliding block, the sliding block moves along with the sliding block and is connected with the inner wall of the groove in a clamped mode; the fixing plate and the positioning plate are firmly fixed together through the clamping rod, accurate positioning of the die head is ensured, when the die head is replaced, a user only needs to reversely rotate the handle, the fixing disc is recycled under the pressure effect, the connecting spring helps the clamping rod to be easily taken out, and therefore the upper die base can be conveniently detached.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die with a replaceable stamping die head. Background Technique

[0002] A stamping die is a tool used for stamping and forming metals or other materials. It usually includes an upper die and a lower die. During the stamping process, the upper die descends with the slider of the stamping machine and cooperates with the lower die fixed on the workbench of the press to form the material. The die head usually refers to the part of the die that directly participates in the material forming, such as a punch or a forming component. A replaceable die head means that this part can be quickly removed from the die and replaced with another die head suitable for different products.

[0003] However, replacing the die head of traditional stamping dies usually requires relatively complex operations, such as disassembling and reassembling the entire die, which requires more time and labor. Moreover, traditional stamping dies may lack an effective shock-absorbing mechanism during the stamping process, resulting in large vibrations of the die during stamping, affecting the accuracy of the stamped parts and the service life of the die.

[0004] Therefore, those skilled in the art have provided a stamping die with a replaceable stamping die head to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the content of the utility model is to solve the disadvantages existing in the prior art, and a stamping die with a replaceable stamping die head is proposed. When the operator drives the hydraulic rod to perform stamping work, the sliding rod at the lower end of the lower die will slide inside the chute. By utilizing the resilience of the first return spring and the second return spring, the lower die can be quickly pushed back to its original position after stamping. Such a shock-absorbing mechanism not only effectively absorbs the impact and vibration caused by the stamping force, but also helps to maintain the stability of the die, thereby ensuring the accuracy and consistency of the stamping process.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A stamping die with a replaceable stamping die head includes a main body plate and a connecting plate. The upper end of the main body plate is provided with a lower die. The inner wall of the connecting plate is fixedly connected with a fixing plate. The lower end of the fixing plate is provided with an upper die base. The front end and the rear end of the upper surface of the upper die base are both fixedly connected with positioning plates. Both ends of the outer wall of the fixing plate are provided with first grooves. Both ends of the positioning plates are provided with second grooves. The main body plate is provided with chutes near the four corners of the upper surface. The inner walls of the chutes are all slidably connected with sliding rods. The upper end of the main body plate is provided with a lower die. The center of the upper surface of the main body plate is fixedly connected with a first return spring;

[0008] A clamping rod is provided inside each of the first groove and the second groove. A threaded block is threadedly connected to the inner wall of the clamping rod. One end of the threaded block close to the center of the fixing plate is rotatably connected to a telescopic rod. One end of the telescopic rod close to the center of the fixing plate is fixedly connected to a sliding block. One end of the sliding block close to the center of the fixing plate is fixedly connected to a fixed disk. A base is provided at one end of the outer wall of the sliding block close to the center of the fixing plate. One end of the fixed disk close to the center of the fixing plate slides inside the inner wall of the base. A sliding block is slidably connected to the inner wall of one end of the base far from the center of the fixing plate. One end of adjacent sliding blocks is fixedly connected to a connecting spring;

[0009] Through the above technical solution, the operator rotates the handshake, which drives the threaded block to rotate threadedly along the inner wall of the clamping rod. As the thread rotates, the telescopic rod and the third return spring contract synchronously, driving the sliding block to slide inside the first groove. When the fixed disk contacts the sliding block, the sliding block moves accordingly and is clamped with the inner wall of the groove. The fixing plate and the positioning plate are firmly fixed together by the clamping rod, ensuring the accurate positioning of the die head. When replacing the die head, only need to rotate the handshake in the reverse direction. Under the pressure, the fixed disk retracts, and the connecting spring helps the clamping rod to be taken out easily. In this way, the upper die holder can be conveniently removed, and then a new die head can be quickly replaced by bolts. The whole replacement process is simple and fast, and only needs to rotate the handshake to complete, improving the work efficiency and convenience.

[0010] Further, hydraulic rods are fixedly connected to both sides of the upper surface of the main body plate, and both sides of the lower end of the connecting plate are fixedly connected to the output ends of the hydraulic rods;

[0011] Through the above technical solution, the fixed connection between the hydraulic rods fixedly connected to both sides of the main body plate and the lower end of the connecting plate provides a stable punching force output.

[0012] Further, a third return spring is sleeved on the outer wall of each telescopic rod;

[0013] Through the above technical solution, the third return spring sleeved on the outer wall of the telescopic rod can quickly reset the telescopic rod after it moves.

[0014] Further, the outer walls of the sliding blocks are attached to the outer walls of the fixed disks;

[0015] Through the above technical solution, the attachment of the outer walls of the sliding blocks to the outer walls of the fixed disks enhances the close fit between the structures.

[0016] Further, a handshake is fixedly connected to one end of the outer wall of each threaded block far from the center of the fixing plate;

[0017] Through the above technical solution, the handshake fixedly connected to one end of the outer wall of the threaded block far from the center of the fixing plate provides an easy-to-operate interface.

[0018] Further, a die head is fixedly connected to the lower end of the upper die base by bolts;

[0019] Through the above technical solution, the die head fixedly connected to the lower end of the upper die base by bolts allows for the quick replacement of die heads of different models, improving the flexibility and adaptability of the die.

[0020] Further, the upper ends of the sliding rods are fixedly connected to the lower end of the lower die;

[0021] Through the above technical solution, the fixed connection between the upper ends of the sliding rods and the lower end of the lower die makes the cooperation between the devices more compact.

[0022] Further, a second return spring is sleeved on the outer wall of each sliding rod, and the upper end of the first return spring is fixedly connected to the lower end of the lower die;

[0023] Through the above technical solution, the second return spring sleeved on the outer wall of the sliding rod and the fixed connection between the upper end of the first return spring and the lower end of the lower die constitute an effective shock absorption mechanism, reducing the impact and vibration during the stamping process, protecting the die and the machine, and extending the service life.

[0024] The utility model has the following beneficial effects:

[0025] 1. For a stamping die with a replaceable stamping die head proposed by the utility model, when the operator rotates the handshake, this will drive the threaded block to rotate threadedly along the inner wall of the clamping rod. As the thread rotates, the telescopic rod and the third return spring contract synchronously, driving the slider to slide in the first groove. When the fixed plate contacts the sliding block, the sliding block moves accordingly and is clamped with the inner wall of the groove. The fixed plate and the positioning plate are firmly fixed together through the clamping rod, ensuring the accurate positioning of the die head. When replacing the die head, just rotate the handshake in the reverse direction, and under the pressure, the fixed plate retracts, and the connecting spring helps the clamping rod to be easily taken out. In this way, the upper die base can be conveniently removed, and then a new die head can be quickly replaced through bolts. The whole replacement process is simple and fast, and only by rotating the handshake can it be completed, improving the work efficiency and convenience.

[0026] 2. For a stamping die with a replaceable stamping die head proposed by the utility model, when the operator drives the hydraulic rod to perform stamping work, the sliding rods at the lower end of the lower die will slide inside the chute. By utilizing the resilience of the first return spring and the second return spring, the lower die can be quickly pushed to reset after stamping. Such a shock absorption mechanism not only effectively absorbs the impact and vibration caused by the stamping force, but also helps to maintain the stability of the die, thus ensuring the accuracy and consistency of the stamping process. Description of the Drawings

[0027] Figure 1Isometric view of a stamping die with a replaceable stamping die head proposed by the present utility model;

[0028] Figure 2 Side isometric view of a stamping die with a replaceable stamping die head proposed by the present utility model;

[0029] Figure 3 Partial exploded view of a stamping die with a replaceable stamping die head proposed by the present utility model;

[0030] Figure 4 Partial structural schematic diagram of a stamping die with a replaceable stamping die head proposed by the present utility model;

[0031] Figure 5 Partial parts exploded view of a stamping die with a replaceable stamping die head proposed by the present utility model;

[0032] Figure 6 Cross-sectional view of a stamping die with a replaceable stamping die head proposed by the present utility model;

[0033] Figure 7 Is Figure 6 Enlarged view of part A in

[0034] Legend description:

[0035] 1. Main body plate; 2. Hydraulic rod; 3. Connecting plate; 4. Fixed plate; 5. Lower die; 6. Chute; 7. Slide bar; 8. First return spring; 9. Second return spring; 10. Positioning plate; 11. Upper die holder; 12. Die head; 13. Clamping rod; 14. Threaded block; 15. Handshake; 16. Telescopic rod; 17. Third return spring; 18. Slide block; 19. Fixed disk; 20. Sliding block; 21. Base; 22. First groove; 23. Second groove; 24. Connecting spring. Specific implementation manners

[0036] Next, the technical solutions in the specific implementation manners of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the specific implementation manners of the present utility model. Obviously, the described specific implementation manners are only a part of the specific implementation manners of the present utility model, rather than all of the specific implementation manners. Based on the specific implementation manners of the present utility model, all other specific implementation manners obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0037] Refer to Figures 1-7 A specific implementation manner provided by the present utility model:

[0038] A stamping die with a replaceable stamping die head, comprising a main body plate 1 and a connecting plate 3. A lower die 5 is arranged at the upper end of the main body plate 1. A fixing plate 4 is fixedly connected to the inner wall of the connecting plate 3. An upper die base 11 is arranged at the lower end of the fixing plate 4. Positioning plates 10 are fixedly connected to the front end and the rear end of the upper surface of the upper die base 11. First grooves 22 are formed at both ends of the outer wall of the fixing plate 4. Second grooves 23 are formed at both ends of the positioning plate 10. Slide grooves 6 are formed near the four corners of the upper surface of the main body plate 1. Slide rods 7 are slidably connected to the inner walls of the slide grooves 6. A lower die 5 is arranged at the upper end of the main body plate 1. A first return spring 8 is fixedly connected to the center of the upper surface of the main body plate 1;

[0039] Clamping rods 13 are arranged inside both the first groove 22 and the second groove 23. Threaded blocks 14 are threadedly connected to the inner walls of the clamping rods 13. One ends of the telescopic rods 16 near the center of the fixing plate 4 are rotatably connected to the threaded blocks 14. One ends of the telescopic rods 16 near the center of the fixing plate 4 are fixedly connected to sliders 18. Fixing disks 19 are fixedly connected to one ends of the sliders 18 near the center of the fixing plate 4. Bases 21 are arranged at one ends of the outer walls of the sliders 18 near the center of the fixing plate 4. The outer walls of the fixing disks 19 near the center of the fixing plate 4 slide inside the inner walls of the bases 21. Sliding blocks 20 are slidably connected to the inner walls of one ends of the bases 21 far from the center of the fixing plate 4. Connecting springs 24 are fixedly connected to one ends of adjacent sliding blocks 20;

[0040] The operator rotates the handshake 15, which drives the threaded block 14 to rotate threadedly along the inner wall of the clamping rod 13. As the thread rotates, the telescopic rod 16 and the third return spring 17 contract synchronously, driving the slider 18 to slide inside the first groove 22. When the fixing disk 19 contacts the sliding block 20, the sliding block 20 moves accordingly and is clamped with the inner wall of the groove, firmly fixing the fixing plate 4 and the positioning plate 10 together through the clamping rod 13, ensuring the accurate positioning of the die head 12. When replacing the die head 12, just rotate the handshake 15 in the reverse direction. Under the pressure, the fixing disk 19 retracts, and the connecting spring 24 helps the clamping rod 13 to be easily taken out. In this way, the upper die base 11 can be conveniently removed, and then a new die head 12 can be quickly replaced through bolts. The whole replacement process is simple and fast, and only needs to rotate the handshake 15 to complete, improving the work efficiency and convenience.

[0041] Hydraulic rods 2 are fixedly connected to both sides of the upper surface of the main body plate 1. The output ends of the hydraulic rods 2 at both sides of the lower end of the connecting plate 3 are fixedly connected to the hydraulic rods 2, providing a stable punching force output. Third return springs 17 are sleeved on the outer walls of the telescopic rods 16. The third return springs 17 sleeved on the outer walls of the telescopic rods 16 can quickly reset the telescopic rods 16 after they act. The outer walls of the sliding blocks 20 are attached to the outer walls of the fixing disks 19. The outer walls of the sliding blocks 20 being attached to the outer walls of the fixing disks 19 enhances the close fit between the structures.

[0042] At one end of the outer wall of the threaded block 14 away from the center of the fixed plate 4, a handshake 15 is fixedly connected. The handshake 15 fixedly connected to the outer wall of the threaded block 14 away from the center of the fixed plate 4 provides an easy-to-operate interface. The lower end of the upper die holder 11 is fixedly connected to a die head 12 by bolts. The die head 12 fixedly connected to the lower end of the upper die holder 11 by bolts allows for quick replacement of different types of die heads 12, improving the flexibility and adaptability of the die. The upper ends of the sliding rods 7 are fixedly connected to the lower end of the lower die 5. The fixed connection between the upper ends of the sliding rods 7 and the lower end of the lower die 5 makes the cooperation between the devices closer. A second return spring 9 is sleeved on the outer wall of each sliding rod 7. The upper end of the first return spring 8 is fixedly connected to the lower end of the lower die 5. The second return spring 9 sleeved on the outer wall of the sliding rod 7 and the fixed connection between the upper end of the first return spring 8 and the lower end of the lower die 5 constitute an effective shock-absorbing mechanism, reducing the impact and vibration during stamping, protecting the die and the machine, and extending the service life.

[0043] Working principle: The operator of the stamping die rotates the handshake 15, which drives the threaded block 14 to rotate along the inner wall thread of the clamping rod 13. As the thread rotates, the telescopic rod 16 and the third return spring 17 contract synchronously, driving the slider 18 to slide in the first groove 22. When the fixed disk 19 contacts the sliding block 20, the sliding block 20 moves accordingly and is clamped with the inner wall of the groove. The fixed plate 4 and the positioning plate 10 are firmly fixed together through the clamping rod 13, ensuring the accurate positioning of the die head 12. When replacing the die head 12, only need to rotate the handshake 15 in the reverse direction. Under the pressure, the fixed disk 19 retracts, and the connecting spring 24 helps the clamping rod 13 to be easily taken out. In this way, the upper die holder 11 can be easily removed, and then a new die head 12 can be quickly replaced by bolts. The whole replacement process is simple and fast, and only need to rotate the handshake 15 to complete, improving the work efficiency and convenience. During the stamping process, the operator drives the hydraulic rod 2, and the sliding rod 7 at the lower end of the lower die 5 slides inside the chute 6. The first return spring 8 and the second return spring 9 provide the necessary resilience to ensure that the lower die 5 can quickly reset after stamping. In particular, the force of the third return spring 17 is greater than the force of the connecting spring 24. This design enables the die system to stably absorb the impact and effectively reduce the vibration when facing a large stamping force, maintaining the stability of the die and ensuring the accuracy and consistency of the stamping process.

[0044] Finally, it should be noted that the above is only the preferred specific embodiment of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiment, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stamping die with a replaceable stamping die head, comprising a main plate (1) and a connecting plate (3), characterized in that: A lower mold (5) is provided at the upper end of the main body plate (1), a fixed plate (4) is fixedly connected to the inner wall of the connecting plate (3), an upper mold base (11) is provided at the lower end of the fixed plate (4), the front end and the rear end of the upper surface of the upper mold base (11) are fixedly connected to the positioning plate (10), both ends of the outer wall of the fixed plate (4) are provided with a first groove (22), both ends of the positioning plate (10) are provided with a second groove (23), the upper surface of the main body plate (1) is provided with a slide groove (6) near the four corners, the inner wall of the slide groove (6) is slidably connected to a slide rod (7), the upper end of the main body plate (1) is provided with a lower mold (5), and the center of the upper surface of the main body plate (1) is fixedly connected to a first return spring (8); A clamping rod (13) is provided inside the first groove (22) and the second groove (23); the inner wall of the clamping rod (13) is threadedly connected to a threaded block (14); one end of the threaded block (14) near the center of the fixed plate (4) is rotatably connected to a telescopic rod (16); one end of the telescopic rod (16) near the center of the fixed plate (4) is fixedly connected to a slider (18); one end of the slider (18) near the center of the fixed plate (4) is fixedly connected to a fixed disk (19); a base (21) is provided at one end of the outer wall of the slider (18) near the center of the fixed plate (4); one end of the outer wall of the fixed disk (19) near the center of the fixed plate (4) slides on the inner wall of the base (21); the inner wall of the base (21) away from the center of the fixed plate (4) is slidably connected to a sliding block (20); one end of the adjacent sliding block (20) is fixedly connected to a connecting spring (24).

2. A stamping die with a replaceable stamping die head according to claim 1, characterized in that: Both sides of the upper surface of the main body plate (1) are fixedly connected to hydraulic rods (2), and both sides of the lower end of the connecting plate (3) are fixedly connected to the output ends of the hydraulic rods (2).

3. A stamping die with a replaceable stamping die head according to claim 1, characterized in that: The outer wall of the telescopic rod (16) is sleeved with a third return spring (17).

4. A stamping die with a replaceable stamping die head according to claim 1, characterized in that: The outer wall of the sliding block (20) is in contact with the outer wall of the fixed plate (19).

5. The stamping die with replaceable stamping die head according to claim 1, characterized in that: One end of the outer wall of the threaded block (14) away from the center of the fixed plate (4) is fixedly connected with a handshake (15).

6. The stamping die with replaceable stamping die head according to claim 1, characterized in that: The lower end of the upper die seat (11) is fixedly connected to a die head (12) via bolts.

7. The stamping die with a replaceable stamping die head according to claim 1, characterized in that: The upper ends of the slide bars (7) are fixedly connected to the lower ends of the lower molds (5).

8. The stamping die with a replaceable stamping die head according to claim 1, characterized in that: The outer wall of the slide rod (7) is sleeved with a second return spring (9), and the upper end of the first return spring (8) is fixedly connected to the lower end of the lower mold (5).

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