Punching and molding die for a damper

Abstract

The utility model provides a kind of stamping forming die for spring wave, it is related to spring wave stamping technical field, including punch press body, the outer surface of punch press body is equipped with stamping mechanism, the inner wall of stamping mechanism is equipped with stripping mechanism, the stripping mechanism includes extrusion plate, the outer surface of extrusion plate is fixedly connected with slide bar, one end of slide bar is fixedly connected with connecting plate, the outer surface of connecting plate is fixedly connected with ejector rod, the outer surface of ejector rod is fixedly connected with top plate.The utility model, if spring wave is attached to the surface of upper die, when hydraulic ram is recycled, drive upper die to move up, extrusion plate is attached to support rod when moving through upper die, to extrude extrusion plate, slide bar is driven to move down in the inside of upper die when extruding, connecting plate is driven to move down through the movement of connecting plate, top plate is separated from storage groove through ejector rod, spring wave attached to the surface of upper die is stripped through top plate.

Description

Technical Field

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

[0002] Currently, most springs are manufactured using a stamping process, which involves pressing metal or non-metal sheets together using upper and lower dies.

[0003] After stamping, the workpiece tends to adhere tightly to the upper or lower mold cavity due to material elasticity or surface adhesion, making it difficult to detach automatically. Manual or auxiliary tools are often required for demolding, which not only reduces production efficiency and increases labor intensity, but also easily leads to workpiece deformation or surface damage due to improper operation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing stamping dies, where the workpiece tends to adhere tightly to the upper or lower die cavity after stamping due to material elasticity or surface adsorption, making it difficult to detach automatically and often requiring manual or auxiliary tools for demolding. This invention provides a stamping die for springs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stamping die for a spring wave, comprising a stamping machine body, a stamping mechanism on the outer surface of the stamping machine body, a demolding mechanism on the inner wall of the stamping mechanism, a base plate, a support rod fixedly connected to the outer surface of the base plate, a hydraulic rod on the outer surface of the support rod, an upper die fixedly connected to the outer surface of the hydraulic rod, a lower die fixedly connected to the outer surface of the base plate, and a pressing plate on the demolding mechanism. A sliding rod is fixedly connected to the outer surface of the pressing plate, a connecting plate is fixedly connected to one end of the sliding rod, a top rod is fixedly connected to the outer surface of the connecting plate, and a top plate is fixedly connected to the outer surface of the top rod.

[0006] In a preferred embodiment, a limiting plate is provided on the outer surface of the base plate, a movable rod is fixedly connected to the outer surface of the limiting plate, a top block is fixedly connected to one end of the movable rod, and the movable rod is slidably connected to the lower mold.

[0007] In a preferred embodiment, a second spring is sleeved on the outer surface of the moving rod, and the two ends of the second spring are respectively fixedly connected to one side of the top block and the inner wall of the lower mold.

[0008] In a preferred embodiment, the outer surface of the upper mold is provided with a storage groove, which is slidably connected to the top plate.

[0009] In a preferred embodiment, a first spring is sleeved on the outer surface of the slide bar, and the two ends of the first spring are respectively fixedly connected to the outer surface of the upper mold and the outer surface of the extrusion plate.

[0010] In a preferred embodiment, the inner wall of the upper mold has an inner cavity adapted to the connecting plate, and the inner cavity is slidably connected to the connecting plate.

[0011] In a preferred embodiment, the inner wall of the upper mold is provided with a sliding hole adapted to the ejector pin, and the inner wall of the sliding hole is slidably connected to the outer surface of the ejector pin.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention provides an installation environment for other components via a base plate and a support rod. A hydraulic rod drives the upper die downwards, ensuring a tight fit between the upper and lower dies to complete the stamping of the spring. After stamping, if the spring adheres to the surface of the upper die, the hydraulic rod retracts, causing the upper die to move upwards. This movement of the upper die causes the extrusion plate to adhere to the support rod, thus extruding the extrusion plate. During extrusion, the sliding rod drives the connecting plate downwards inside the upper die. The movement of the connecting plate causes the ejector rod to move downwards, separating the top plate from the receiving groove. The top plate then demolds the spring adhering to the surface of the upper die. Simultaneously, the sliding rod compresses the first spring, placing it in a compressed state. During the next stamping cycle, the downward movement of the hydraulic rod separates the extrusion plate from the support rod, and the rebound of the first spring resets the sliding rod, allowing the top plate to re-enter the receiving groove, ensuring the normal operation of the stamping process. Attached Figure Description

[0013] Figure 1 A perspective view of a stamping die for a spring-loaded object provided by this utility model.

[0014] Figure 2 A perspective view of the upper die of a stamping forming mold for a spring wave provided by this utility model.

[0015] Figure 3 A cross-sectional view of the upper die of a stamping forming mold for a spring wave provided by this utility model.

[0016] Figure 4 A sectional view of the lower die of a stamping forming mold for a spring wave provided by this utility model.

[0017] Legend: 1. Press body; 2. Pressing mechanism; 3. Demolding mechanism; 21. Base plate; 22. Support rod; 23. Hydraulic rod; 24. Upper mold; 25. Lower mold; 26. Storage slot; 31. Extrusion plate; 32. Slide rod; 33. First spring; 34. Connecting plate; 35. Top rod; 36. Top plate; 37. Limiting plate; 38. Moving rod; 39. Second spring; 301. Top block. Detailed Implementation

[0018] 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.

[0019] Example 1 like Figures 1-4 As shown, this utility model provides a technical solution: a stamping die for a spring wave, including a stamping machine body 1, a stamping mechanism 2 on the outer surface of the stamping machine body 1, a demolding mechanism 3 on the inner wall of the stamping mechanism 2, a base plate 21, a support rod 22 fixedly connected to the outer surface of the base plate 21, a hydraulic rod 23 on the outer surface of the support rod 22, an upper die 24 fixedly connected to the outer surface of the hydraulic rod 23, a lower die 25 fixedly connected to the outer surface of the base plate 21, and a pressing plate 31, a sliding rod 32 fixedly connected to the outer surface of the pressing plate 31, one end of the sliding rod 32 fixedly connected to a connecting rod. The connecting plate 34 and the upper mold 24 have an inner cavity that matches the connecting plate 34. The inner cavity is slidably connected to the connecting plate 34. The outer surface of the connecting plate 34 is fixedly connected to the ejector rod 35. The inner wall of the upper mold 24 has a sliding hole that matches the ejector rod 35. The inner wall of the sliding hole is slidably connected to the outer surface of the ejector rod 35. The outer surface of the ejector rod 35 is fixedly connected to the top plate 36. The outer surface of the upper mold 24 has a receiving groove 26 that is slidably connected to the top plate 36. The outer surface of the sliding rod 32 is fitted with a first spring 33. The two ends of the first spring 33 are fixedly connected to the outer surface of the upper mold 24 and the outer surface of the extrusion plate 31, respectively.

[0020] In this embodiment, the stamping machine body 1 ensures that the stamping mechanism 2 and the demolding mechanism 3 can work normally. During the stamping of the spring, the base plate 21 provides an installation environment for other components, the support rod 22 provides support for other components, and the hydraulic rod 23 drives the upper die 24 to move downwards, causing the upper die 24 and lower die 25 to fit tightly together, completing the stamping of the spring. After the stamping is completed, if the spring is attached to the surface of the upper die 24, the hydraulic rod 23 retracts, causing the upper die 24 to move upwards. During the movement of the upper die 24, the extrusion plate 31 fits against the support rod 22, thereby extruding the extrusion plate 31. During pressing, the slide bar 32 drives the connecting plate 34 to move downward inside the upper mold 24. The movement of the connecting plate 34 drives the ejector rod 35 to move downward. The ejector rod 35 drives the top plate 36 to separate from the receiving groove 26. The top plate 36 demolds the spring that is attached to the surface of the upper mold 24. While the slide bar 32 is moving, it squeezes the first spring 33, putting the spring in a compressed state. When the next stamping is performed, the downward movement of the hydraulic rod 23 causes the extrusion plate 31 to separate from the support rod 22. The rebound of the first spring 33 drives the slide bar 32 to reset, so that the top plate 36 is re-received into the receiving groove 26, ensuring the normal operation of the stamping work.

[0021] Example 2 like Figures 1-4 As shown, a limiting plate 37 is provided on the outer surface of the base plate 21. A moving rod 38 is fixedly connected to the outer surface of the limiting plate 37. A top block 301 is fixedly connected to one end of the moving rod 38. The moving rod 38 is slidably connected to the lower mold 25. A second spring 39 is sleeved on the outer surface of the moving rod 38. The two ends of the second spring 39 are fixedly connected to one side of the top block 301 and the inner wall of the lower mold 25, respectively.

[0022] In this embodiment, during stamping, the upper die 24 presses the top block 301 inside the lower die 25, causing the top block 301 to move downwards and be completely housed inside the lower die 25. As the top block 301 moves, it drives the moving rod 38 to move, and the top block 301 presses the second spring 39, causing the second spring 39 to be in a compressed state. After the stamping work is completed, if the spring is stuck inside the lower die 25, the rebound of the second spring 39 will cause the top block 301 to reset, thereby pushing the spring out from inside the lower die 25. The limiting plate 37 ensures that the moving rod 38 will not separate from the lower die 25.

[0023] Working principle: like Figures 1-4As shown, in this utility model, the upper mold 24 is moved downward by the hydraulic rod 23, so that the upper mold 24 and the lower mold 25 are tightly fitted together to complete the stamping of the spring. After the stamping is completed, if the spring is attached to the surface of the upper mold 24, the upper mold 24 is moved upward when the hydraulic rod 23 is retracted. When the upper mold 24 moves, the extrusion plate 31 is attached to the support rod 22, thereby extruding the extrusion plate 31. During the extrusion, the sliding rod 32 will drive the connecting plate 34 to move downward inside the upper mold 24. The movement of the connecting plate 34 will drive the ejector rod 35 to move downward. The ejector rod 35 will drive the top plate 36 to separate from the receiving groove 26. The top plate 36 will demold the spring attached to the surface of the upper mold 24. At the same time as the sliding rod 32 moves, the first spring 33 is compressed, so that the spring is in a compressed state. When the next stamping is performed, the spring is compressed. The downward movement of the hydraulic rod 23 separates the extrusion plate 31 from the support rod 22. The return of the first spring 33 drives the slide rod 32 to reset, allowing the top plate 36 to be re-inserted into the receiving groove 26, ensuring the normal operation of the stamping process. During stamping, the upper die 24 extrudes the top block 301 inside the lower die 25, causing the top block 301 to move downward and be completely contained inside the lower die 25. As the top block 301 moves, it drives the moving rod 38 to move, and the top block 301 extrudes the second spring 39, keeping the second spring 39 in a compressed state. After the stamping process is completed, if the spring is stuck inside the lower die 25, the return of the second spring 39 drives the top block 301 to reset, thereby pushing the spring out of the lower die 25. The limiting plate 37 ensures that the moving rod 38 will not separate from the lower die 25.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A stamping die for a spring wave, comprising a stamping machine body (1), characterized in that: The outer surface of the stamping machine body (1) is provided with a stamping mechanism (2), and the inner wall of the stamping mechanism (2) is provided with a demolding mechanism (3). The stamping mechanism (2) includes a base plate (21), and a support rod (22) is fixedly connected to the outer surface of the base plate (21). A hydraulic rod (23) is provided on the outer surface of the support rod (22). An upper die (24) is fixedly connected to the outer surface of the hydraulic rod (23). A lower die (25) is fixedly connected to the outer surface of the base plate (21). The demolding mechanism (3) includes an extrusion plate (31), and a slide rod (32) is fixedly connected to the outer surface of the extrusion plate (31). A connecting plate (34) is fixedly connected to one end of the slide rod (32). A top rod (35) is fixedly connected to the outer surface of the connecting plate (34). A top plate (36) is fixedly connected to the outer surface of the top rod (35).

2. The stamping die for a spring wave according to claim 1, characterized in that: The outer surface of the base plate (21) is provided with a limiting plate (37), and a moving rod (38) is fixedly connected to the outer surface of the limiting plate (37). One end of the moving rod (38) is fixedly connected to a top block (301), and the moving rod (38) is slidably connected to the lower mold (25).

3. The stamping die for a spring wave according to claim 2, characterized in that: The outer surface of the moving rod (38) is fitted with a second spring (39), and the two ends of the second spring (39) are respectively fixedly connected to one side of the top block (301) and the inner wall of the lower mold (25).

4. The stamping die for a spring wave according to claim 1, characterized in that: The outer surface of the upper mold (24) is provided with a storage groove (26), and the storage groove (26) is slidably connected to the top plate (36).

5. A stamping die for a spring-loaded wave as described in claim 1, characterized in that: The outer surface of the slide bar (32) is fitted with a first spring (33), and the two ends of the first spring (33) are respectively fixedly connected to the outer surface of the upper mold (24) and the outer surface of the extrusion plate (31).

6. The stamping die for a spring wave according to claim 1, characterized in that: The inner wall of the upper mold (24) is provided with an inner cavity that is adapted to the connecting plate (34), and the inner cavity is slidably connected to the connecting plate (34).

7. The stamping die for a spring wave according to claim 1, characterized in that: The inner wall of the upper mold (24) is provided with a sliding hole that is adapted to the push rod (35), and the inner wall of the sliding hole is slidably connected to the outer surface of the push rod (35).

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