Split type stamping die

By using a cylinder to drive the slider and clamping plate in synchronous reverse motion, the problem of difficult demolding of split stamping dies is solved, achieving efficient stamping processing and high-quality finished product production.

CN224406219UActive Publication Date: 2026-06-26SUZHOU HOUCHENGPIN PRECISION MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HOUCHENGPIN PRECISION MOULD CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When using existing split-type stamping dies to stamp metal parts for electronic products, the finished parts are prone to getting stuck in the die, making demolding difficult and reducing stamping efficiency.

Method used

The synchronous reverse motion of the slider and clamping plate driven by the cylinder is used to achieve precise movement and clamping of the positioning plate, ensuring the stability of the material and smooth demolding during the stamping process.

Benefits of technology

It improves stamping precision and production efficiency, reduces demolding difficulties and material damage, lowers scrap rate, and enhances product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to punch die technical field discloses a kind of split punch dies, including bottom plate, the bottom of bottom plate is fixedly connected with two fixed plate a, the bottom of two fixed plate a is fixedly connected with support plate a, the bottom of bottom plate is fixedly connected with driving assembly, the right side of driving assembly is fixedly connected with sliding block, the outside of sliding block is fixedly connected with rack, the top of support plate a is fixedly connected with two guide rails, the inner wall of two sliding blocks is slidably connected in the outside of guide rail, the top of support plate a is fixedly connected with fixed column, the outside of fixed column is rotatably connected with gear, two rack and gear are engaged. In the utility model, cylinder a drives sliding block synchronous reverse motion, makes positioning plate accurate positioning and power-assisted stripping, cylinder b drives clamping plate accurate clamping, guarantees stamping stability, and each component is orderly reset, can promote production efficiency and product quality.
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Description

Technical Field

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

[0002] A split-type stamping die is a type of stamping die whose structure is divided into multiple detachable parts. It typically consists of components such as an upper die and a lower die, each of which is independently machined and then assembled for use. This design facilitates maintenance and replacement of locally worn parts, reduces maintenance costs, and can flexibly adapt to stamping requirements for different shapes. However, attention must be paid to assembly accuracy to ensure the quality of the stamped parts.

[0003] In the existing technology, a partial split stamping die is a special process equipment used in cold stamping to process materials into parts. It uses the power of a press to lower the upper die, and applies pressure to the material placed between the upper and lower dies through the punch, causing it to separate or plastically deform to form the required part. After the upper die rises, it ejects the part and removes the waste material.

[0004] However, in the existing technology, some split stamping dies have a problem when stamping hardware parts for electronic products. After stamping, the finished parts are deformed and get stuck in the die, making demolding difficult and reducing the efficiency of stamping. To solve this problem, a split stamping die is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a split stamping die, which aims to improve the problems of difficult demolding and poor adaptability of some split stamping dies in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a split stamping die, comprising a base plate, two fixed plates a fixedly connected to the bottom of the base plate, a support plate a fixedly connected to the bottom of the two fixed plates a, a driving assembly fixedly connected to the bottom of the base plate, a slider fixedly connected to the right side of the driving assembly, a rack fixedly connected to the outside of the slider, two guide rails fixedly connected to the top of the support plate a, the guide rails being slidably connected to the inner walls of the two sliders, a fixed column fixedly connected to the top of the support plate a, a gear rotatably connected to the outside of the fixed column, and the two racks meshing with the gear;

[0007] As a further description of the above technical solution: the four sliders are externally slidably connected to the inside of the base plate, the tops of two sliders are fixedly connected to positioning plates, and the top of the base plate is provided with two pressure dividing modules, which are in contact with each other;

[0008] As a further description of the above technical solution: the driving component includes a cylinder a, the cylinder a is externally fixedly connected to the bottom of the base plate, the driving end of the cylinder a is fixedly connected to a push rod a, the rear side of the push rod a is fixedly connected to a connecting block, and the right side of the connecting block is fixedly connected to the left side of the slider.

[0009] As a further description of the above technical solution: two fixing plates b are fixedly connected to the far side of the two positioning plates, and a support plate b is fixedly connected to the bottom of the two fixing plates b. The near side of the two support plates b is fixedly connected to the far side of the two positioning plates.

[0010] As a further description of the above technical solution: a cylinder b is fixedly connected to the top of each of the two support plates b, a push rod b is fixedly connected to the drive end of the cylinder b, and a fixing block is fixedly connected to the outside of the push rod b.

[0011] As a further description of the above technical solution: the fixed block is externally fixedly connected to a connecting column a, and the connecting column a is externally rotatably connected to two connecting plates, and the two connecting plates are internally rotatably connected to connecting columns b.

[0012] As a further description of the above technical solution: both of the connecting columns b are fixedly connected to the outside of a limiting plate, the outside of the limiting plate is slidably connected to the inside of the fixed plate b, and a clamping plate is fixedly connected to the far side of both limiting plates, the clamping plate being slidably connected to the inside of the positioning plate.

[0013] As a further description of the above technical solution: four support columns are fixedly connected inside the base plate, and an upper template is slidably connected to the outside of the four support columns. A stamping machine body is fixedly connected to the top of the upper template, and a stamping plate is fixedly connected to the drive end of the stamping machine body.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the positioning plate is moved precisely by driving the slider to move synchronously in the opposite direction through cylinder a. This has significant benefits. In stamping operations, the positioning plate can be quickly and accurately adjusted to the appropriate position to accurately position the material to be stamped and ensure stamping accuracy. After stamping, the synchronous reverse motion characteristic can also help with demolding, allowing the material to smoothly leave the mold, reducing demolding difficulties and material damage, improving production efficiency and product quality, and reducing scrap rate.

[0016] 2. In this utility model, the clamping plate is precisely clamped by the cylinder b, which effectively prevents the material from shifting during stamping and ensures the stability of stamping. The stamping machine body drives the stamping plate to slide down steadily along the support column to complete the stamping, ensuring the forming quality. After stamping, each part is reset in an orderly manner, so that the finished product can be demolded smoothly and can quickly return to the initial state for the next operation. It is highly practical. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a split-type stamping die proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the clamping plate of a split stamping die proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the pressure dividing module of a split stamping die proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the gear structure of a split stamping die proposed in this utility model.

[0021] Legend:

[0022] 1. Base plate; 2. Fixed plate a; 3. Support plate a; 4. Cylinder a; 5. Push rod a; 6. Connecting block; 7. Slider; 8. Guide rail; 9. Rack; 10. Fixed column; 11. Gear; 12. Positioning plate; 13. Fixed plate b; 14. Support plate b; 15. Cylinder b; 16. Push rod b; 17. Fixed block; 18. Connecting column a; 19. Connecting plate; 20. Limiting plate; 21. Clamping plate; 22. Support column; 23. Upper template; 24. Stamping machine body; 25. Stamping plate; 26. Pressure dividing module; 27. Connecting column b. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1 , Figure 4This utility model provides an embodiment of a split-type stamping die, including a base plate 1. The base plate 1 serves as the basic support structure for the entire die, having a flat and sturdy surface for supporting and fixing other components. Two fixing plates a2 are fixedly connected to the bottom of the base plate 1. These two fixing plates a2 are symmetrically distributed and regularly shaped, providing a stable mounting platform for subsequent components and serving to strengthen connections and provide support. Support plates a3 are fixedly connected to the bottom of the two fixing plates a2. The support plates a3 have a large area and sufficient strength, capable of evenly distributing pressure from the components above, ensuring the stability of the entire die structure. A driving assembly is fixedly connected to the bottom of the base plate 1. This driving assembly is the die... The positioning action is powered by a slider 7 fixedly connected to the right side of the drive component. The slider 7 is rectangular in shape with a smooth outer surface, which can reduce friction during movement and has a tendency to move in a specific direction. A rack 9 is fixedly connected to the outside of the slider 7. The rack 9 has regular tooth profile and high meshing accuracy with the gear 11, which can convert the linear motion of the slider 7 into the rotational motion of the gear 11. Two guide rails 8 are fixedly connected to the top of the support plate a3. The guide rails 8 are long and strip-shaped with finely machined surfaces, which have high straightness and smoothness. They are slidably connected to the inner walls of the two sliders 7 to provide guidance for the movement of the slider 7 and ensure that the slider 7 maintains a stable linear trajectory during movement.

[0025] A fixed column 10 is fixedly connected to the top of the support plate a3. The fixed column 10 is cylindrical with a moderate diameter and a smooth surface. A gear 11 is rotatably connected to its exterior, providing a support point for the rotation of the gear 11 and ensuring that the gear 11 can rotate flexibly. Two racks 9 mesh with the gear 11. When one rack 9 moves, it can drive the other rack 9 to move in the opposite direction through the transmission action of the gear 11, realizing the transmission and conversion of motion. The four sliders 7 are externally slidably connected to the interior of the base plate 1. The sliders 7 slide smoothly inside the base plate 1. Through this sliding connection, the sliders 7 can perform precise linear motion under the action of the drive component. A positioning plate 12 is fixedly connected to the top of the two sliders 7. The positioning plate 12 is flat and has a smooth surface. It is used to position the material to be stamped and to demold the material after the stamping process. Two pressure dividing modules 26 are provided on the top of the base plate 1. The pressure-distributing module 26 is in contact with the pressure distribution module 26, which has a specific shape and structure. It can disperse pressure during the stamping process, reduce local wear of the mold, and improve the service life of the mold. The drive component includes cylinder a4, which serves as the drive source and has a large output force and stable performance. It is externally fixedly connected to the bottom of the base plate 1, providing a stable installation position for the entire drive component. The drive end of cylinder a4 is fixedly connected to push rod a5, which is cylindrical and its diameter matches the drive end of cylinder a4. It can make linear extension and retraction movements under the action of cylinder a4. The rear side of push rod a5 is fixedly connected to connecting block 6, which has a regular shape and serves to connect push rod a5 and slider 7, transmitting the movement of push rod a5 to slider 7. The right side of connecting block 6 is fixedly connected to the left side of slider 7. Through this connection method, the power of cylinder a4 can be effectively transmitted to slider 7, driving slider 7 to move.

[0026] Reference Figure 2 , Figure 3Two fixing plates b13 are fixedly connected to the far sides of the two positioning plates 12. The fixing plates b13 are rectangular flat plates with a flat surface and a certain thickness. Their function is to provide a stable mounting base for the support plate b14 and cylinder b15, ensuring a firm and reliable connection between the components. Support plates b14 are fixedly connected to the bottom of the two fixing plates b13. The support plates b14 are long strip-shaped plates with high strength and rigidity, providing support and stability. The near sides of the two support plates b14 are fixedly connected to the far sides of the two positioning plates 12. This connection method makes the support plates b14 and positioning plates 12 form an integral structure, enhancing the overall positioning... The clamping mechanism maintains stability and consistency during movement, providing reliable support for subsequent clamping actions. Cylinders b15 are fixedly connected to the top of both support plates b14. Each cylinder b15 is cylindrical, containing a piston and sealing device, and can generate linear reciprocating motion under air pressure. As a power source, it provides the necessary power for the clamping action, featuring high output force and fast response. A push rod b16 is fixedly connected to the drive end of cylinder b15. The push rod b16 is cylindrical, with a diameter matching the drive end of cylinder b15, and has a smooth surface. Under the action of cylinder b15, it can perform stable linear extension and retraction motion, achieving effective power transmission. The push rod b16 is externally fixedly connected to a fixing block 17. The fixing block 17 is a square block structure with a certain weight and stability. Its function is to transmit the movement of the push rod b16 to the connecting post a18, and at the same time provide an installation position for the connecting post a18, ensuring that the connecting post a18 can be stably fixed to the push rod b16. The fixing block 17 is externally fixedly connected to the connecting post a18. The connecting post a18 is a short cylindrical rod with a smooth surface. Its function is to act as a connecting component, allowing the two connecting plates 19 to rotate around it, realizing the transmission and conversion of motion. Its shape design facilitates the rotation of the connecting plates 19 and reduces friction during the rotation process. The external... The rotatable connection has two connecting plates 19, which are long strips with a certain thickness and strength. They can rotate under the action of connecting column a18 and connecting column b27. Their rotational tendency can convert the linear motion of push rod b16 into the linear sliding motion of limit plate 20, thus realizing the change of motion form. The two connecting plates 19 are rotatably connected to connecting column b27. Connecting column b27 is a short cylindrical rod. The connection between it and the connecting plate 19 is finely processed to ensure smooth rotation. Its function is to transmit the rotational motion of the connecting plate 19 to the limit plate 20, and at the same time provide fixation and support for the limit plate 20, so that the limit plate 20 can move according to the predetermined trajectory.

[0027] Both connecting columns b27 are fixedly connected to limiting plates 20. The limiting plates 20 are rectangular flat plates with a smooth surface and a certain width and length. They are slidably connected to the inside of the fixed plate b13, allowing for linear sliding motion within the fixed plate b13. This serves to limit and guide the movement of the limiting plates 20, ensuring accurate movement direction and restricting their range of motion. On opposite sides of the two limiting plates 20, clamping plates 21 are fixedly connected. These clamping plates 21 are elongated plates with a specially treated surface, providing friction and wear resistance. They are slidably connected to the inside of the positioning plate 12, allowing for linear sliding motion within the positioning plate 12 under the influence of the limiting plates 20. Through cooperation with the positioning plate 12, they clamp the components to be separated, ensuring no displacement of the material during stamping. The bottom plate 1 is fixedly connected to four support columns 22. These support columns 22 are cylindrical long rods with a smooth surface and high strength and rigidity, providing support for the upper template 23. The upper template 23 is guided to ensure that it maintains a stable linear trajectory during movement, while bearing the weight of components such as the upper template 23 and the stamping machine body 24. The upper template 23 is slidably connected to the outside of the four support columns 22. The upper template 23 is a rectangular flat plate with a certain thickness and weight, and can slide linearly outside the support columns 22. The top of the upper template 23 is fixedly connected to the stamping machine body 24, providing an installation platform for the stamping machine body 24. At the same time, it transmits the stamping force of the stamping machine body 24 to the stamping plate 25 below and the material to be stamped. The top of the upper template 23 is fixedly connected to the stamping machine body 24, which generates strong stamping force and transmits the stamping force to the stamping plate 25 through the drive end to realize the stamping and forming of the material. The drive end of the stamping machine body 24 is fixedly connected to the stamping plate 25. The stamping plate 25 is a rectangular flat plate with a flat surface and a certain hardness. It can move downward under the drive of the stamping machine body 24 and cooperate with the pressure dividing module 26 to apply pressure to the material to be stamped, completing the stamping and forming process.

[0028] Working principle: Before the stamping operation begins, the mold is in its initial state, the positioning plate 12 is in its initial position, and the pressure dividing module 26 is in contact and ready to be stamped. The drive assembly is activated, specifically, cylinder a4 starts working. The drive end of cylinder a4 pushes the push rod a5 forward. Since the rear side of the push rod a5 is fixedly connected to the connecting block 6, and the right side of the connecting block 6 is fixedly connected to the left side of the slider 7, when the push rod a5 moves forward, it drives the slider 7 to slide forward along the guide rail 8 through the connecting block 6. During the forward sliding process of the slider 7, the teeth fixedly connected to its exterior... The rack 9 also moves forward. Since the top of the support plate a3 is fixedly connected to the fixed column 10, and the outside of the fixed column 10 is rotatably connected to the gear 11, the two racks 9 mesh with the gear 11. Therefore, when one rack 9 moves forward, it will drive the gear 11 to rotate, thereby driving the other rack 9 to move backward, thus realizing the synchronous reverse movement of the two sliders 7. During the synchronous reverse movement of the two sliders 7, the positioning plate 12 fixedly connected to its top also moves, thereby positioning the material to be stamped and demolding the material after the stamping process.

[0029] The cylinder b15 is activated, driving the push rod b16 to move the fixed block 17. The fixed block 17 drives the two connecting plates 19 to rotate via the connecting column a18. The connecting plate 19 drives the limiting plate 20 to slide inside the fixed plate b13 via the connecting column b27. At the same time, the limiting plate 20 drives the clamping plate 21 to slide inside the positioning plate 12, clamping the die to be stamped, further ensuring the stability of the material during the stamping process and preventing the die from shifting during stamping. The stamping machine body 24 is started, driving the stamping plate 25 to move downward. The stamping plate 25 slides steadily down along the support column 22 via the upper template 23, clamping the positioned and clamped die. When pressure is applied to the material, the stamping plate 25 and the pressure dividing module 26 interact to complete the stamping and forming of the material, forming the required stamped part. After the stamping operation is completed, the stamping machine body 24 drives the stamping plate 25 to rise, the upper template 23 slides upward along the support column 22 to reset, the cylinder a4 drives in the reverse direction to reset the slider 7, rack 9, gear 11 and positioning plate 12, and separates the pressure dividing module 26 to demold the finished product. The cylinder b15 drives in the reverse direction to reset the push rod b16, fixing block 17, connecting plate 19, limit plate 20 and clamping plate 21, and releases the pressure dividing module to prepare for the next stamping operation.

[0030] 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. Split stamping die comprising a base plate (1), characterized in that: The bottom of the base plate (1) is fixedly connected to two fixed plates a (2), and the bottom of the two fixed plates a (2) is fixedly connected to a support plate a (3). The bottom of the base plate (1) is fixedly connected to a drive assembly, and the right side of the drive assembly is fixedly connected to a slider (7). The outside of the slider (7) is fixedly connected to a rack (9). The top of the support plate a (3) is fixedly connected to two guide rails (8). The outside of the guide rails (8) is slidably connected to the inner wall of the two sliders (7). The top of the support plate a (3) is fixedly connected to a fixed column (10), and the outside of the fixed column (10) is rotatably connected to a gear (11). The two racks (9) mesh with the gear (11).

2. The split punch die of claim 1, wherein: The four sliders (7) are externally slidably connected to the inside of the base plate (1), and the top of the two sliders (7) is fixedly connected to the positioning plate (12). The top of the base plate (1) is provided with two pressure dividing modules (26), and the two pressure dividing modules (26) are in contact with each other.

3. A split-type stamping die according to claim 1, characterized in that: The drive assembly includes a cylinder a (4), which is externally fixedly connected to the bottom of the base plate (1). A push rod a (5) is fixedly connected to the drive end of the cylinder a (4). A connecting block (6) is fixedly connected to the rear side of the push rod a (5). The right side of the connecting block (6) is fixedly connected to the left side of the slider (7).

4. A split-type stamping die according to claim 2, characterized in that: Two fixing plates b (13) are fixedly connected to the far side of the two positioning plates (12), and a support plate b (14) is fixedly connected to the bottom of the two fixing plates b (13). The near side of the two support plates b (14) is fixedly connected to the far side of the two positioning plates (12).

5. A split-type stamping die according to claim 4, characterized in that: A cylinder b (15) is fixedly connected to the top of each of the two support plates b (14), and a push rod b (16) is fixedly connected to the drive end of the cylinder b (15), and a fixing block (17) is fixedly connected to the outside of the push rod b (16).

6. A split-type stamping die according to claim 5, characterized in that: The fixed block (17) is fixedly connected to a connecting column a (18) on the outside. The connecting column a (18) is rotatably connected to two connecting plates (19). The two connecting plates (19) are rotatably connected to a connecting column b (27) inside.

7. A split-type stamping die according to claim 6, characterized in that: Both connecting columns b (27) are fixedly connected to the outside of a limiting plate (20), the outside of the limiting plate (20) is slidably connected to the inside of the fixed plate b (13), and a clamping plate (21) is fixedly connected to the far side of both limiting plates (20), the clamping plate (21) is slidably connected to the inside of the positioning plate (12).

8. A split-type stamping die according to claim 1, characterized in that: The base plate (1) is internally fixedly connected to four support columns (22), and the four support columns (22) are externally slidably connected to an upper template (23). The top of the upper template (23) is fixedly connected to a stamping machine body (24), and the driving end of the stamping machine body (24) is fixedly connected to a stamping plate (25).