Continuous stamping die for metal stamping

Abstract

The invention discloses a continuous stamping die for metal stamping, which belongs to the technical field of stamping equipment and comprises a frame body, a fixed die plate, an upper movable die plate and a lower movable die plate, an upper channel and a lower channel which are perpendicular to each other are arranged in the frame body, and multi-directional stamping of products is realized. The frame body is stably supported through the top plate, the bottom plate and the vertical rods, the fixed mold plate is fixed in the frame body, and the upper movable mold plate and the lower movable mold plate slide in corresponding channels. The limiting unit adopts the combination of an elastic limiting column, a circular plate and a cylinder, so that the adaptability to products of different specifications is enhanced; the toothed plate and the gear are in transmission fit with the sliding shaft for guiding, and accurate linkage of the templates is ensured. The pushing unit and the oil cylinder achieve automatic conveying of products and accurate pressure control of the upper movable mold plate respectively. The die solves the problems that a traditional die needs to transfer products frequently during multi-direction stamping, precision is low, and the automation degree is poor, production links and equipment investment are reduced, and stamping efficiency, precision and product quality are improved.

Description

Technical Field

[0001] This invention relates to the field of stamping die technology, and more specifically to a continuous stamping die for metal stamping. Background Technology

[0002] Stamping, as an important pressure processing method, is widely used in wheel manufacturing. It applies pressure to material using a die mounted on stamping equipment, causing separation or plastic deformation to obtain the desired parts. Traditional stamping dies often have many limitations when dealing with complex products or products requiring multi-directional stamping. For example, for products requiring multiple stampings in different directions, traditional dies typically require transferring the product between different equipment or dies. This not only increases production steps and equipment investment but also easily leads to decreased stamping accuracy and compromised product quality due to positioning errors during product transfer. Furthermore, traditional stamping dies have low automation levels, require significant manual intervention, and have low production efficiency, making it difficult to meet the demands of modern manufacturing for high-efficiency, high-precision production. With the rapid development of manufacturing, higher demands are placed on the efficiency, precision, and automation of metal stamping dies. Against this backdrop, this continuous stamping die has emerged to address the shortcomings of traditional dies and improve the overall level of metal stamping. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a continuous stamping die for metal stamping, which achieves multi-directional continuous stamping of metal products through a vertical channel layout, elastic limiting structure, and precise transmission control.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a progressive stamping die for metal stamping, comprising: The frame has an upper chamber and a lower chamber inside, and the upper chamber and the lower chamber are respectively provided with an upper channel and a lower channel for passing through the product to be stamped. The frame includes a fixed template, an upper movable template, and a lower movable template. The fixed template is fixed inside the frame. The upper chamber and the lower chamber are respectively installed on the upper and lower sides of the fixed template. The upper movable template is slidably installed in the upper channel and the lower movable template is slidably installed in the lower channel. The product to be stamped passes between the upper movable template, the lower movable template, and the fixed template. The upper and lower channels are used to transport the equipment to be stamped, and their transport directions are perpendicular to each other.

[0005] Preferably, the frame includes a top plate and a bottom plate, the four corners of the top plate and the bottom plate are connected by uprights, and the four corners of the fixed template are all fixed to the uprights.

[0006] Preferably, limit units are installed at the bottom of the upper moving template and the top of the lower fixed template, and the limit units include limit posts disposed on both sides of the product to be stamped.

[0007] Preferably, both the upper and lower movable templates are provided with sliding holes adapted to the limiting post, the limiting post is slidably installed in the sliding hole, and an elastic body is installed inside the sliding hole.

[0008] Preferably, the end of the limiting post extending out of the upper or lower moving template is fixed to a circular plate, and the shortest distance between two adjacent circular plates is less than the width of the product to be stamped.

[0009] Preferably, a cylinder is sleeved on the outside of the limiting post.

[0010] Preferably, a support body is fixed at each of the four corners of the fixed template, and the upper and lower ends of the support body extend into the interior of the upper chamber and the lower chamber, respectively. A toothed plate is fixed at each of the four corners of the upper and lower movable templates. The toothed plates on the upper and lower movable templates are symmetrically installed inside the support body. A gear is rotatably installed inside the support body, and the two sides of the gear are respectively meshed with the symmetrically arranged toothed plates.

[0011] Preferably, a sliding shaft is fixed between the top plate and the bottom plate, and the sliding shaft passes through the fixed template, the upper moving template and the lower moving template, and the upper moving template and the lower moving template can slide arbitrarily on the sliding shaft.

[0012] Preferably, a pushing unit is installed on the base plate. The pushing unit includes a bracket and pushing rollers mounted on the bracket. Each bracket has two pushing rollers, and the product to be stamped can pass between the two pushing rollers.

[0013] Preferably, a hydraulic cylinder is fixed inside the top plate, and the output end of the hydraulic cylinder is connected to the upper moving template.

[0014] The beneficial effects of this invention are as follows: The upper and lower moving templates are synchronized through the transmission of toothed plates and gears, and guided and supported by sliding shafts, they can accurately stamp the product. This precise template motion control ensures accurate relative positioning and coordinated movement of the upper and lower templates during the stamping process, further improving stamping accuracy and reducing scrap rate. The limiting post in the limiting unit can slide within a sliding hole, and an elastic body is installed inside the sliding hole. This elastically adjustable limiting method not only ensures the limiting effect on the product but also adapts to products of different sizes or with slight deviations in shape. Compared to traditional fixed limiting methods, this enhances the adaptability of the limiting unit. The circular plate fixed to the protruding end of the limiting post, and the externally sleeved cylinder, respectively enhance the limiting effect, protect the limiting post, and reduce product conveying resistance, thereby further improving the mold's adaptability to different products. The circular plate prevents the product from sliding out of the limiting range from the side during stamping, ensuring the product's stability during the stamping process. Attached Figure Description Figure 1 This is a schematic diagram of the structure of this stamping die.

[0015] Figure 2 This is a top view of the moving template.

[0016] Figure 3 This is the front view of the stamping die.

[0017] Figure 4 This is an internal sectional view of the stamping die.

[0018] Figure 5 for Figure 4 Enlarged view of point A in the image.

[0019] Figure 6 This is an internal sectional view of the upper moving template.

[0020] Figure 7 for Figure 6 Enlarged view of point B in the image.

[0021] Figure 8 This is an internal sectional view of the support structure.

[0022] In the diagram: 1. Frame, 101. Top plate, 102. Bottom plate, 2. Fixed template, 3. Upper moving template, 4. Lower moving template, 5. Support, 6. Upright pole, 7. Sliding shaft, 8. Push roller, 9. Support body, 10. Hydraulic cylinder, 11. Elastic body, 12. Limiting post, 13. Circular plate, 14. Gear, 15. Cylinder, 16. Toothed plate. Detailed Implementation

[0023] The present invention is illustrated below with specific embodiments, but these are not intended to limit the invention.

[0024] Example 1 like Figures 1-8 As shown in the figure, in this embodiment, a continuous stamping die for metal stamping is provided, including a frame 1, a fixed template 2, an upper moving template 3 and a lower moving template 4.

[0025] The frame 1 has an upper chamber and a lower chamber inside, and the upper chamber and the lower chamber are respectively provided with an upper channel and a lower channel for passing through the product to be stamped.

[0026] The fixed template 2 is fixed inside the frame 1. The upper chamber and the lower chamber are respectively installed on the upper and lower sides of the fixed template 2. The upper moving template 3 is slidably installed in the upper channel and the lower moving template 4 is slidably installed in the lower channel. The product to be stamped passes between the upper moving template 3, the lower moving template 4 and the fixed template 2.

[0027] The upper and lower channels are used to transport products to the stamping equipment, and their conveying directions are perpendicular to each other. Products to be stamped pass through the upper and lower channels respectively. The upper moving platen 3 and the lower moving platen 4 can slide within their respective channels. Utilizing the perpendicular conveying directions of the upper and lower channels, the products are stamped sequentially in different directions. During the stamping process, the upper moving platen 3, the lower moving platen 4, and the fixed platen 2 work together to apply pressure to the product, completing the stamping process and achieving continuous stamping of metal products. This improves stamping efficiency and product quality. Compared to traditional molds, multi-directional stamping can be completed on the same equipment, reducing product transfer steps and equipment investment.

[0028] The frame 1 includes a top plate 101 and a bottom plate 102. The four corners of the top plate 101 and the bottom plate 102 are connected by uprights 6. The four corners of the fixed template 2 are fixed on the uprights 6. When the mold is working, the frame 1 bears various external forces during the stamping process. The uprights 6 evenly transmit these forces to the top plate 101 and the bottom plate 102, maintaining the stability of the entire mold structure and ensuring the stability of the frame 1 structure. This allows the fixed template 2 to be installed securely, thereby ensuring the accurate relative positions of the upper chamber, lower chamber, upper moving template 3, lower moving template 4, and other components. This provides a stable and reliable working environment for product stamping and avoids the decrease in stamping accuracy or mold damage due to structural instability.

[0029] A pushing unit is installed on the base plate 102. The pushing unit includes a bracket 5 and pushing rollers 8 mounted on the bracket 5. There are two pushing rollers 8 on each bracket 5. The product to be stamped can pass between the two pushing rollers 8. When the pushing rollers 8 rotate, they use the friction between themselves and the product to drive the product forward, continuously conveying the product to be stamped to the stamping area, realizing automatic conveying of the product, reducing manual intervention, improving production efficiency, ensuring the stability and accuracy of the product conveying during the stamping process, and enabling the product to accurately enter the stamping position, providing a guarantee for subsequent stamping processing.

[0030] A hydraulic cylinder 10 is fixed inside the top plate 101. The output end of the hydraulic cylinder 10 is connected to the upper moving template 3. When the hydraulic cylinder 10 is working, the output end is pushed to extend or retract through the hydraulic system, thereby driving the upper moving template 3 to move up and down. During the stamping process, the hydraulic cylinder 10 precisely controls the moving distance and pressure of the upper moving template 3 according to the set program or pressure requirements, realizing the stamping processing of the product, providing power to the upper moving template 3, realizing precise motion control of the upper moving template 3, and flexibly adjusting the stamping pressure and stroke according to different stamping process requirements to ensure the quality and accuracy of the stamping processing.

[0031] Example 2 like Figures 1-8 As shown, based on Embodiment 1, this embodiment provides a limiting unit, as detailed below: Limiting units are installed at the bottom of the upper moving template 3 and the top of the lower fixed template 2. Each limiting unit includes limiting posts 12 positioned on both sides of the product to be stamped. These posts restrict the lateral movement of the product, ensuring it remains on the predetermined stamping path. When the product contacts the limiting posts 12, the posts act as a barrier and guide, ensuring accurate product positioning. This positioning and guiding during the stamping process prevents deviation or misalignment, guarantees stamping accuracy, and improves product yield.

[0032] Both the upper moving platen 3 and the lower moving platen 4 have sliding holes inside that are adapted to the limiting post 12. The limiting post 12 is slidably installed in the sliding hole, and an elastic body 11 is installed inside the sliding hole. When the product squeezes the limiting post 12, the limiting post 12 can compress the elastic body 11 and move backward within the sliding hole. When the pressure disappears, the elastic body 11 pushes the limiting post 12 back to its original position. This elastically adjustable limiting method can not only ensure the limiting effect on the product, but also adapt to products of different sizes or slightly different shapes, enhancing the adaptability and flexibility of the limiting unit, and enabling the mold to be used for various specifications of products to be stamped.

[0033] One end of the limiting post 12 extending from the upper moving template 3 or the lower moving template 4 is fixed to a circular plate 13. The shortest distance between two adjacent circular plates 13 is less than the width of the product to be stamped. When the product enters the stamping area, the circular plates 13 block and limit the product from both sides, preventing the product from detaching from the side of the limiting post 12. At the same time, the circular plates 13 increase the contact area between the limiting post 12 and the product, making the limiting more stable and further strengthening the limiting effect on the product, preventing the product from sliding out of the limiting range from the side during the stamping process.

[0034] A cylinder 15 is sleeved around the outer side of the limiting post 12. During the contact and friction between the product and the limiting post 12, the cylinder 15 protects the limiting post 12 and reduces wear on its surface. Simultaneously, the smooth surface of the cylinder 15 reduces friction between the product and the limiting post 12, making product transport smoother, protecting the limiting post 12, extending its service life, and reducing mold maintenance costs. Furthermore, reducing product transport resistance helps improve product transport efficiency and the smoothness of the stamping process.

[0035] Example 3 like Figures 1-8 As shown, based on Embodiment 1 and Embodiment 2, this embodiment provides a method for moving the upper moving template 3 and the lower moving template 4, as detailed below: Support bodies 9 are fixed at each of the four corners of the fixed template 2. The upper and lower ends of the support bodies 9 extend into the upper and lower chambers, respectively. Toothed plates 16 are fixed at each of the four corners of the upper moving template 3 and the lower moving template 4. The toothed plates 16 on the upper moving template 3 and the lower moving template 4 are symmetrically installed inside the support bodies 9. Gears 14 are rotatably installed inside the support bodies 9. The two sides of the gears 14 are respectively engaged with the symmetrically arranged toothed plates 16. When one template moves, the other template moves synchronously in the opposite direction through the transmission between the toothed plates 16 and the gears 14. For example, when the upper moving template 3 moves upward, the lower moving template 4 moves downward through the transmission between the toothed plates 16 and the gears 14, realizing the synchronous linkage of the upper and lower templates during stamping. This ensures the accurate relative position and coordinated movement of the upper and lower templates during the stamping process, improving stamping accuracy and efficiency. At the same time, this transmission method has a compact structure, stable and reliable transmission, and can withstand large stamping loads.

[0036] A sliding shaft 7 is fixed between the top plate 101 and the bottom plate 102. The sliding shaft 7 passes through the fixed template 2, the upper moving template 3, and the lower moving template 4. The upper moving template 3 and the lower moving template 4 can slide arbitrarily on the sliding shaft 7. During the stamping process, the sliding shaft 7 provides guidance and support for the sliding of the template, ensuring that the template moves smoothly along the predetermined direction, reducing the shaking and offset during the movement of the template, providing stable guidance and support for the sliding of the upper moving template 3 and the lower moving template 4, ensuring the motion accuracy of the template during the stamping process, and enabling the template to accurately stamp the product.

[0037] Working principle: The limiting units installed at the bottom of the upper moving template 3 and the top of the lower fixed template 2 include limiting posts 12 set on both sides of the product to be stamped. During product conveying, the limiting posts 12 use their position to restrict the lateral movement of the product, keeping the product always on the predetermined stamping path. When the product contacts the limiting post 12, the limiting post 12 acts as a block and guide, ensuring accurate product positioning. The limiting post 12 slides within a sliding hole, where an elastic body 11 provides elastic support. When the product presses against the limiting post 12, the limiting post 12 can compress the elastic body 11 within the sliding hole and move backward; after the pressure disappears, the elastic body 11 pushes the limiting post 12 back to its original position to accommodate products of different sizes or slightly different shapes. The limiting post 12 extends out of a circular plate 13 fixed at one end of the template. The distance between adjacent circular plates 13 is less than the width of the product, which can block and limit the product from both sides, preventing it from detaching from the side and enhancing limiting stability. The cylinder 15 sleeved on the outside of the limiting post 12 can protect the limiting post 12 and reduce its surface wear when the product comes into contact with and rubs against the limiting post 12. It can also reduce the friction between the product and the limiting post 12 with its smooth surface, making the product conveying smoother. The support bodies 9 at the four corners of the fixed template 2 extend into the upper and lower chambers, respectively. The toothed plates 16 fixed at the four corners of the upper moving template 3 and the lower moving template 4 are symmetrically installed inside the support bodies 9. Gears 14 rotatably mounted inside the support bodies 9 mesh with the symmetrically arranged toothed plates 16 on both sides. When one template moves, the other template moves synchronously in the opposite direction through the transmission between the toothed plates 16 and the gears 14, achieving synchronous linkage stamping of the upper and lower templates. The sliding shaft 7 fixed between the top plate 101 and the bottom plate 102 passes through the fixed template 2, the upper moving template 3, and the lower moving template 4, providing stable guidance and support for the sliding of the upper moving template 3 and the lower moving template 4, ensuring smooth movement of the templates along the predetermined direction and reducing swaying and offset during movement. The pushing unit mounted on the base plate 102 consists of a bracket 5 and two pushing rollers 8 mounted on the bracket 5. When the pushing rollers 8 rotate, they use the friction between themselves and the product to move the product forward, continuously conveying the product to be stamped to the stamping area, thus achieving automatic product conveying. A hydraulic cylinder 10 is fixed inside the top plate 101, with its output end connected to the upper moving template 3. When the hydraulic cylinder 10 is working, it pushes the output end to extend or retract through the hydraulic system, thereby moving the upper moving template 3 up and down. During the stamping process, the hydraulic cylinder 10 precisely controls the moving distance and pressure of the upper moving template 3 according to the set program or pressure requirements, realizing the stamping processing of the product.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A progressive stamping die for metal stamping, characterized in that, include: The frame (1) has an upper chamber and a lower chamber inside, and the upper chamber and the lower chamber are respectively provided with an upper channel and a lower channel for passing through the product to be stamped; Fixed template (2), upper moving template (3) and lower moving template (4). The fixed template (2) is fixed inside the frame (1). The upper chamber and the lower chamber are respectively installed on the upper and lower sides of the fixed template (2). The upper moving template (3) is slidably installed in the upper channel and the lower moving template (4) is slidably installed in the lower channel. The product to be stamped passes between the upper moving template (3), the lower moving template (4) and the fixed template (2). The upper and lower channels are used to transport the equipment to be stamped, and their transport directions are perpendicular to each other.

2. A continuous stamping die for metal stamping according to claim 1, characterized in that, The frame (1) includes a top plate (101) and a bottom plate (102). The four corners of the top plate (101) and the bottom plate (102) are connected by uprights (6). The four corners of the fixed template (2) are all fixed on the uprights (6).

3. A progressive stamping die for metal stamping according to claim 1, characterized in that, Limiting units are installed at the bottom of the upper moving template (3) and the top of the lower fixed template (2). The limiting units include limiting posts (12) set on both sides of the product to be stamped.

4. A progressive stamping die for metal stamping according to claim 3, characterized in that, The upper moving template (3) and the lower moving template (4) are both provided with sliding holes that are adapted to the limiting post (12). The limiting post (12) is slidably installed in the sliding hole, and an elastic body (11) is installed inside the sliding hole.

5. A progressive stamping die for metal stamping according to claim 4, characterized in that, The limiting post (12) extends from one end of the upper moving template (3) or the lower moving template (4) to fix the circular plate (13), and the shortest distance between two adjacent circular plates (13) is less than the width of the product to be stamped.

6. A progressive stamping die for metal stamping according to claim 3, characterized in that, The limiting post (12) is fitted with a cylinder (15).

7. A progressive stamping die for metal stamping according to claim 1, characterized in that, The fixed template (2) is fixed with a support body (9) at each of its four corners. The upper and lower ends of the support body (9) extend into the upper and lower chambers, respectively. The upper moving template (3) and the lower moving template (4) are fixed with toothed plates (16) at their four corners. The toothed plates (16) on the upper moving template (3) and the lower moving template (4) are symmetrically installed inside the support body (9). A gear (14) is rotatably installed inside the support body (9). The two sides of the gear (14) are meshed with the symmetrically arranged toothed plates (16).

8. A progressive stamping die for metal stamping according to claim 2, characterized in that, A sliding shaft (7) is fixed between the top plate (101) and the bottom plate (102). The sliding shaft (7) passes through the fixed template (2), the upper moving template (3) and the lower moving template (4). The upper moving template (3) and the lower moving template (4) can slide arbitrarily on the sliding shaft (7).

9. A progressive stamping die for metal stamping according to claim 8, characterized in that, A pushing unit is installed on the base plate (102). The pushing unit includes a bracket (5) and a pushing roller (8) installed on the bracket (5). There are two pushing rollers (8) on each bracket (5). The product to be stamped can pass between the two pushing rollers (8).

10. A progressive stamping die for metal stamping according to claim 2, characterized in that, A hydraulic cylinder (10) is fixed inside the top plate (101), and the output end of the hydraulic cylinder (10) is connected to the upper moving template (3).

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