Tension spring drag hook punch forming device

By designing a spring hook stamping forming device that includes a support plate, cylinder, stamping knife and guide device, the problem of reduced elasticity caused by manual operation of the spring hook part in the prior art is solved, and precise stamping and cost saving are achieved.

CN223543843UActive Publication Date: 2025-11-14江西金酷智能制造有限公司
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Patent Information

Application Number
CN202422849161.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-11-14
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

In the prior art, the tension spring hook part is usually bent manually or with simple mechanical equipment, which reduces the length of the elastic part at the end of the tension spring.

Method used

Design a spring hook stamping forming device including a support plate, a cylinder, a stamping knife, a guide device, a fixing plate, and a partition plate. The cylinder drives the stamping knife to fit against the vertical surface of the partition plate to form a hook, and the guide device and fixing plate are used to ensure stability and accuracy.

Benefits of technology

It achieves precise stamping of the ends of the tension spring, saves production costs, and improves the utilization rate of the tension spring's elasticity and the stability of the stamping process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of drag hook stamping, and provides a tension spring drag hook stamping forming device which is characterized by comprising a supporting plate, a first air cylinder, a second air cylinder, a stamping cutter, a guiding device, a fixing plate, an auxiliary downward pressing plate and a partition plate. The air cylinders are arranged on the supporting plate, the stamping knife is arranged on the air cylinders, the guiding device is arranged on the supporting plate, the auxiliary pressing plate is arranged on the second air cylinder, and the auxiliary pressing plate is in contact fit with the guiding device. Then the tension spring is fixed through the cooperation of the fixing plate and the auxiliary pressing-down plate, so that the pressing-down cutter moves downwards to punch the end part of the tension spring, the shortest part of the tension spring can be punched to form a drag hook, and the production cost of the tension spring is saved; and through the synergistic effect of the guide device and the fixing plate, the stability and accuracy of the tension spring in the stamping process are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of hook stamping technology, specifically to a tension spring hook stamping forming device. Background Technology

[0002] In the traditional manufacturing process of tension spring hooks, the ends of the produced tension springs need to be processed again to form hooks. Currently, the hook portion of the tension spring is usually formed by bending the ends of the spring manually or using simple mechanical equipment. This results in the longer portion of the spring end forming the hook, which reduces the length of the elastic portion of the spring itself. In view of this, this application is hereby submitted. Utility Model Content

[0003] This application proposes a spring hook stamping forming device to solve the technical problem in the prior art where the hook portion of the spring is usually formed by manually bending the end of the spring using simple mechanical equipment, resulting in the longer portion of the spring end forming the hook and thus reducing the length of the elastic portion of the spring itself. The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0004] A spring hook stamping forming device, characterized in that it includes a support plate, a first cylinder, a second cylinder, a stamping knife, a guide device, a fixed plate, an auxiliary lower pressure plate, and a partition plate. The first cylinder and the second cylinder are both disposed on the upper side of the support plate. The stamping knife is disposed on the cylinder. The guide device is disposed on the support plate. The auxiliary lower pressure plate is disposed on the second cylinder. The auxiliary lower pressure plate and the guide device are in contact and cooperate. The partition plate is disposed on the support plate. A cavity is formed between the fixed plate and the auxiliary lower pressure plate.

[0005] Furthermore, the guiding device includes a guide block and a slide groove. The guide block is disposed on the auxiliary lower pressure plate, and the slide groove is formed on the support plate. The guide block slides within the slide groove.

[0006] Furthermore, a baffle is provided on the fixing plate.

[0007] Furthermore, the upper side of the partition plate is wedge-shaped, and the stamping knife fits against the vertical surface of the wedge-shaped partition plate during stamping.

[0008] Furthermore, the side of the auxiliary pressure plate closest to the fixed plate is parallel to the upper side of the fixed plate.

[0009] Furthermore, the support plate is provided with a support block, and the first cylinder and the second cylinder are mounted on the support block.

[0010] Compared with the prior art, the beneficial effects of this utility model include:

[0011] By setting a separator plate, the ends of the tension spring are separated. Then, the tension spring is fixed by the cooperation of a fixing plate and an auxiliary pressing plate. The pressing blade moves downward to stamp the ends of the tension spring, which can make the shortest part of the tension spring stamped to form a hook, thus saving the production cost of the tension spring. The stability and accuracy of the tension spring during the stamping process are ensured by the coordinated action of the guiding device and the fixing plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the working state of this utility model in the stamping process;

[0013] Figure 2 This is a schematic diagram of the present invention in its unpressed state.

[0014] Figure 3 This is a schematic diagram of the structure of the guide block of this utility model.

[0015] In the diagram: 1. Support plate; 2. First cylinder; 3. Second cylinder; 4. Stamping knife; 5. Fixing plate; 6. Auxiliary lower pressing plate; 7. Divider plate; 8. Guide block; 9. Slide groove; 10. Baffle; 11. Support block. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] Please see the appendix Figure 1-3 A spring hook stamping forming device is characterized by comprising a support plate, a first cylinder, a second cylinder, a stamping knife, a guide device, a fixed plate, an auxiliary lower pressure plate, and a partition plate. The first cylinder and the second cylinder are both disposed on the upper side of the support plate. The stamping knife is disposed on the cylinder. The guide device is disposed on the support plate. The auxiliary lower pressure plate is disposed on the second cylinder. The auxiliary lower pressure plate and the guide device are in contact and cooperate. The partition plate is disposed on the support plate. The upper side of the partition plate is wedge-shaped. When the stamping knife stamps, it is in contact with the vertical surface of the wedge-shaped partition plate. A cavity is formed between the fixed plate and the auxiliary lower pressure plate. The side of the auxiliary lower pressure plate closest to the fixed plate is parallel to the upper side of the fixed plate.

[0020] A cavity is formed between the fixed plate and the auxiliary lower pressure plate to hold the tension spring to be stamped. The first cylinder and the second cylinder drive the stamping knife and the auxiliary lower pressure plate respectively to stamp the tension spring placed in the cavity between the fixed plate and the auxiliary lower pressure plate to form a hook. When the first cylinder drives the stamping knife to move downward, it contacts the end of the tension spring separated by the partition plate and stamps it to form a hook. The design of the stamping knife must ensure that it fits against the vertical surface of the partition plate to achieve a precise stamping effect. The partition plate serves to separate the ends of the tension spring and guide the stamping knife. During stamping, the auxiliary lower pressure plate moves downward together with the fixed plate to fix the tension spring, providing a stable stamping platform for the stamping knife and ensuring the smooth progress of the stamping process. Throughout the process, the guiding device ensures the stable movement of the auxiliary lower pressure plate.

[0021] In detail, the upper side of the partition plate is wedge-shaped. This design helps guide the stamping knife to accurately stamp the end of the tension spring. The partition plate separates the shortest part of the tension spring, and the stamping knife stamps the separated part of the tension spring, so that the hooks at both ends of the tension spring are as short as possible, thus saving costs. When the stamping knife is in contact with the vertical surface of the partition plate, it moves downward along the wedge shape of the partition plate, thereby stamping the end of the tension spring and forming hooks. The partition plate also serves to separate the ends of the tension spring, ensuring that the end of each tension spring can be accurately stamped.

[0022] In some embodiments, the guiding device includes a guide block and a slide groove. The guide block is disposed on an auxiliary pressure plate, and the slide groove is formed on a support plate, allowing the guide block to slide within the slide groove.

[0023] The guiding device includes a guide block and a slide groove. The guide block is mounted on the auxiliary lower pressure plate, while the slide groove is formed on the support plate. When the second cylinder drives the auxiliary lower pressure plate to move downward, the guide block slides within the slide groove, thereby ensuring the stable movement of the auxiliary lower pressure plate and helping to prevent the auxiliary lower pressure plate from shifting or tilting during movement, which would affect the accuracy and quality of stamping.

[0024] In some embodiments, a baffle is provided on the fixing plate to help further stabilize the position of the tension spring and prevent it from shifting outward during the stamping process.

[0025] In some embodiments, a support block is provided on the support plate, and the first cylinder and the second cylinder are mounted on the support block. The support block is mounted on the support plate to support the first cylinder and the second cylinder, ensuring the stability and accuracy of the cylinders, thereby further improving the stability and quality of the stamping process.

[0026] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A stamping forming device for tension spring hooks, characterized in that, The device includes a support plate, a first cylinder, a second cylinder, a stamping cutter, a guide device, a fixed plate, an auxiliary pressing plate, and a partition plate. The first cylinder and the second cylinder are both located on the upper side of the support plate. The stamping cutter is located on the cylinder. The guide device is located on the support plate. The auxiliary pressing plate is located on the second cylinder. The auxiliary pressing plate and the guide device are in contact and cooperate with each other. The partition plate is located on the support plate. A cavity is formed between the fixed plate and the auxiliary pressing plate.

2. The spring hook stamping forming device according to claim 1, characterized in that, The guiding device includes a guide block and a slide groove. The guide block is disposed on the auxiliary lower pressure plate, and the slide groove is formed on the support plate. The guide block slides within the slide groove.

3. The spring hook stamping forming device according to claim 1, characterized in that, The fixing plate is equipped with a baffle.

4. The spring hook stamping forming device according to claim 1, characterized in that, The upper side of the partition plate is wedge-shaped, and the stamping knife is in contact with the vertical surface of the wedge-shaped partition plate during stamping.

5. The spring hook stamping forming device according to claim 1, characterized in that, The side of the auxiliary pressure plate closest to the fixed plate is parallel to the upper side of the fixed plate.

6. The spring hook stamping forming device according to claim 1, characterized in that, The support plate is provided with a support block, and the first cylinder and the second cylinder are mounted on the support block.