High-buffering type automobile part stamping die capable of automatically ejecting and demolding

By designing a high-buffered automotive parts stamping die with automatic ejection and demolding, and utilizing components such as cylinder retainers and buffer springs to absorb impact forces, combined with an automatic demolding mechanism, the wear and deformation problems caused by the inability to adjust the buffering performance of traditional stamping dies are solved, thereby improving production efficiency and product quality.

CN223543854UActive Publication Date: 2025-11-14CHANGSHU CHUANGXIN MOULD CO LTD
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Patent Information

Application Number
CN202423085294.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-14
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Traditional automotive parts stamping dies cannot adjust their cushioning performance during the stamping process, leading to increased die wear, part deformation, and decreased surface quality, which affects production efficiency and product quality.

Method used

A high-buffered stamping die for automotive parts with automatic ejection and demolding was designed. Through the cooperation of components such as cylinder fixing frame, adjusting cylinder, buffer adjusting plate, and buffer spring, the impact force is absorbed and dispersed. Combined with the automatic demolding mechanism, manual intervention is reduced and production efficiency is improved.

Benefits of technology

It effectively reduces mold wear and deformation, improves production efficiency, enables automatic demolding, shortens the production cycle, and adapts to the stamping needs of automotive parts of different materials and thicknesses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile part machining, and discloses a high-buffering type automobile part stamping die capable of automatically ejecting and demolding, which comprises a support plate, a stamping buffering part and a stamping demolding part, and a support rod is fixedly mounted on the outer wall of the bottom of the support plate. Through the cooperation of the air cylinder fixing frame, the adjusting air cylinder, the buffering adjusting plate, the fixing sleeve, the linkage sliding rod, the limiting block, the reset spring, the positioning sliding rod, the buffering spring, the buffering plate and the circular groove, in the punching process, punching force is released instantly, large impact is possibly caused to a die, the impact can be effectively relieved through the punching buffering part, and the service life of the die is prolonged. The risks of abrasion, deformation and even breakage caused by strong impact of the die are reduced, the service life of the die is prolonged, the die can adapt to the stamping requirements of automobile parts of different materials and thicknesses, the buffering force can be properly reduced for thin or soft materials, the buffering force can be increased for thick or hard materials, and therefore the buffering force can be reduced; the stamping effect is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a high-buffered automotive parts stamping die with automatic ejection and demolding. Background Technology

[0002] The automotive industry is a crucial pillar of modern manufacturing, and the quality and precision of automotive parts directly impact vehicle performance and safety. Stamping is a commonly used process in automotive parts manufacturing, offering advantages such as high production efficiency, low cost, and high precision. However, the instantaneous application of stamping force during the process generates significant impact forces and vibrations, damaging molds and parts, thus affecting production efficiency and product quality.

[0003] Traditional automotive parts stamping dies typically use fixed cushioning devices, such as springs and rubber pads. Their cushioning performance cannot be adjusted according to different stamping processes and part requirements. This makes the die and parts susceptible to excessive impact and vibration during the stamping process, leading to problems such as accelerated die wear, part deformation, and decreased surface quality. Utility Model Content

[0004] The purpose of this invention is to provide a high-buffer type stamping die for automotive parts with automatic ejection and demolding, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-buffered stamping die for automotive parts with automatic ejection and demolding, comprising a support plate, a stamping buffer part, and a stamping demolding part. A support rod is fixedly installed on the bottom outer wall of the support plate, and a support pad is fixedly installed at the bottom of the support rod. The stamping buffer part is located on the top of the support plate. The stamping demolding part is located on the top of the support plate.

[0006] Preferably, the stamping buffer section specifically includes: a positioning slide rod, fixedly installed on the top of the support plate; a cylinder fixing bracket, fixedly installed on the bottom of the support plate; and a buffer plate, disposed on the top of the support plate. An adjusting cylinder is fixedly installed inside the cylinder fixing bracket, and a buffer plate is provided. The buffer plate can absorb and disperse the huge impact force from the punch, reduce the direct impact of the punch on other parts of the mold, and thus extend the service life of the mold.

[0007] Preferably, the telescopic end of the adjusting cylinder movably penetrates the bottom outer wall of the support plate and extends to the top of the support plate. The telescopic end of the adjusting cylinder is fixedly connected to a buffer adjusting plate. The buffer adjusting plate is provided with positioning sliding holes and round holes respectively. A fixing sleeve is fixedly installed on the top of the buffer adjusting plate. The buffer plate is provided with mounting sliding holes. The buffer adjusting plate is set so that the adjusting cylinder can drive the adjusting buffer spring.

[0008] Preferably, the buffer plate is movably fitted onto the outer wall of the positioning slide rod through a mounting hole, the buffer adjustment plate is movably fitted onto the outer wall of the positioning slide rod through a round hole, a connecting slide rod is fixedly installed on the bottom outer wall of the buffer plate, the other end of the connecting slide rod movably passes through the top of the support plate and extends to the bottom of the support plate, and a limit block is fixedly installed on the other end of the connecting slide rod.

[0009] Preferably, a return spring is sleeved on the outer wall of the linkage slide rod. One end of the return spring is fixedly connected to the limit block, and the other end of the return spring is fixedly connected to the bottom of the support plate. The return spring can play a certain buffering role and reduce the impact and wear between mold components.

[0010] Preferably, a buffer spring is movably sleeved on the outer wall of the positioning slide rod. One end of the buffer spring is fixedly connected to the bottom of the buffer plate, and the other end of the buffer spring is fixedly connected to the top of the buffer adjustment plate. A circular groove is formed on the top of the buffer plate.

[0011] Preferably, the stamping demolding part specifically includes: a support block, fixedly installed on the top of the support plate; a lower die base, fixedly installed on the top of the buffer plate; and a demolding spring, disposed inside the circular groove. The demolding spring can quickly eject the formed automotive part from the mold after stamping, thereby achieving automatic demolding.

[0012] Preferably, a support top plate is fixedly installed on the top of the support block, and a telescopic cylinder is provided on the top of the support top plate. The telescopic end of the telescopic cylinder moves through the top of the support top plate and extends to the bottom of the support top plate. A stamping plate is fixedly connected to the telescopic end of the telescopic cylinder. An upper module is fixedly installed on the bottom of the stamping plate. A strip groove is opened on the inner wall of the lower mold base. The lower mold base is connected to a circular groove through the strip groove. One end of the demolding spring is fixedly connected to a demolding template, and the other end of the demolding spring is fixedly connected to the inner wall of the circular groove. A module is fixedly installed on the inner wall of the lower mold base, and the demolding template is adapted to the strip groove.

[0013] This invention provides a high-buffered stamping die for automotive parts with automatic ejection and demolding. It has the following advantages:

[0014] (1) This utility model utilizes the cooperation between the cylinder fixing bracket, adjusting cylinder, buffer adjusting plate, fixing sleeve, connecting slide rod, limiting block, return spring, positioning slide rod, buffer spring, buffer plate, and circular groove. During the stamping process, the stamping pressure is released instantaneously, which may cause a large impact on the mold. The stamping buffer part can effectively reduce this impact, reduce the risk of wear, deformation, or even breakage of the mold caused by strong impact, extend the service life of the mold, and enable the mold to adapt to the stamping requirements of automotive parts of different materials and thicknesses. For thinner or softer materials, the buffer force can be appropriately reduced, while for thicker or harder materials, the buffer force can be increased to ensure the stamping effect.

[0015] (2) This utility model achieves automatic demolding through the cooperation of the support block, support top plate, telescopic cylinder, stamping plate, upper module, lower mold base, strip groove, demolding template, module and demolding spring, which reduces the time and workload of manual intervention. In traditional stamping dies, demolding often requires manual operation, which is not only time-consuming, but may also lead to inaccurate operation due to human factors, affecting the production progress. The automatic ejection demolding part of the stamping demolding can quickly and accurately push the parts out of the mold after stamping, which greatly shortens the production cycle. Since the demolding process is carried out automatically, the mold can be prepared for the next stamping more quickly, realizing continuous production and increasing the output per unit time. Attached Figure Description

[0016] Figure 1 This is a frontal perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a partial view of the stamping buffer part of this utility model;

[0018] Figure 3 This is a partial view of the stamping demolding part of this utility model;

[0019] Figure 4 This is a partial view of the template removal method of this utility model.

[0020] In the diagram: 1 Support plate, 2 Support rod, 3 Stamping buffer part, 311 Cylinder fixing frame, 312 Adjusting cylinder, 313 Buffer adjusting plate, 314 Fixing sleeve, 315 Linking slide rod, 316 Limit block, 317 Reset spring, 318 Positioning slide rod, 319 Buffer spring, 3111 Buffer plate, 3112 Circular groove, 4 Stamping demolding part, 411 Support block, 412 Support top plate, 413 Telescopic cylinder, 414 Stamping plate, 415 Upper module, 416 Lower mold base, 417 Strip groove, 418 Demolding template, 419 Module, 4111 Demolding spring. Detailed Implementation

[0021] 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.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0023] A preferred embodiment of the high-buffer type automotive parts stamping die with automatic ejection and demolding provided by this utility model is, for example... Figure 1-4 As shown: A high-buffered stamping die for automotive parts with automatic ejection and demolding includes a support plate 1, a stamping buffer part 3, and a stamping demolding part 4. A support rod 2 is fixedly installed on the bottom outer wall of the support plate 1, and a support pad is fixedly installed on the bottom of the support rod 2. The stamping buffer part 3 is located on the top of the support plate 1. The stamping demolding part 4 is located on the top of the support plate 1.

[0024] The stamping buffer part 3 specifically includes: a positioning slide rod 318, which is fixedly installed on the top of the support plate 1; a cylinder fixing bracket 311, which is fixedly installed on the bottom of the support plate 1; a buffer plate 3111, which is set on the top of the support plate 1; and an adjusting cylinder 312 is fixedly installed inside the cylinder fixing bracket 311.

[0025] The telescopic end of the adjusting cylinder 312 moves through the bottom outer wall of the support plate 1 and extends to the top of the support plate 1. The telescopic end of the adjusting cylinder 312 is fixedly connected to a buffer adjusting plate 313. The buffer adjusting plate 313 is provided with a positioning sliding hole and a round hole. A fixing sleeve 314 is fixedly installed on the top of the buffer adjusting plate 313. The buffer plate 3111 is provided with an installation sliding hole.

[0026] The buffer plate 3111 is movably fitted onto the outer wall of the positioning slide rod 318 through the mounting hole. The buffer adjustment plate 313 is movably fitted onto the outer wall of the positioning slide rod 318 through the round hole. A connecting slide rod 315 is fixedly installed on the bottom outer wall of the buffer plate 3111. The other end of the connecting slide rod 315 movably passes through the top of the support plate 1 and extends to the bottom of the support plate 1. A limit block 316 is fixedly installed on the other end of the connecting slide rod 315.

[0027] A return spring 317 is sleeved on the outer wall of the linkage slide rod 315. One end of the return spring 317 is fixedly connected to the limit block 316, and the other end of the return spring 317 is fixedly connected to the bottom of the support plate 1.

[0028] A buffer spring 319 is movably sleeved on the outer wall of the positioning slide rod 318. One end of the buffer spring 319 is fixedly connected to the bottom of the buffer plate 3111, and the other end of the buffer spring 319 is fixedly connected to the top of the buffer adjustment plate 313. A circular groove 3112 is provided on the top of the buffer plate 3111.

[0029] In this embodiment, the actuating cylinder 312 drives the buffer adjusting plate 313 to move on the positioning slide rod 318. When the buffer adjusting plate 313 moves upward, it compresses the buffer spring 318, reducing the buffering effect. Conversely, when the buffer adjusting plate 313 moves downward, the increased pre-compression causes the buffer spring 318 to generate a larger reaction force with a smaller displacement, thereby enhancing the buffering effect. During the stamping process, the stamping pressure is released instantaneously, which may cause a large impact on the mold. The stamping buffer can effectively mitigate this impact, reducing the risk of wear, deformation, or even breakage of the mold due to strong impact, extending the mold's service life, and enabling the mold to adapt to the stamping requirements of automotive parts of different materials and thicknesses. For thinner or softer materials, the buffering force can be appropriately reduced, while for thicker or harder materials, the buffering force can be increased to ensure the stamping effect. Example

[0030] Based on Example 1, a preferred embodiment of the high-buffer type automotive parts stamping die with automatic ejection and demolding provided by this utility model is as follows: Figure 1-4 As shown: The stamping demolding part 4 specifically includes: a support block 411, which is fixedly installed on the top of the support plate 1; a lower die base 416, which is fixedly installed on the top of the buffer plate 3111; and a demolding spring 4111, which is disposed inside the circular groove 3112.

[0031] A support plate 412 is fixedly installed on the top of the support block 411. A telescopic cylinder 413 is provided on the top of the support plate 412. The telescopic end of the telescopic cylinder 413 moves through the top of the support plate 412 and extends to the bottom of the support plate 412. A stamping plate 414 is fixedly connected to the telescopic end of the telescopic cylinder 413. An upper module 415 is fixedly installed on the bottom of the stamping plate 414. A strip groove 417 is opened on the inner wall of the lower mold base 416. The lower mold base 416 is connected to the circular groove 3112 through the strip groove 417. One end of the demolding spring 4111 is fixedly connected to the demolding template 418. The other end of the demolding spring 4111 is fixedly connected to the inner wall of the circular groove 3112. A module 419 is fixedly installed on the inner wall of the lower mold base 416. The demolding template 418 is adapted to the strip groove 417.

[0032] In this embodiment, the telescopic cylinder 413 is activated. After activation, the upper module 415 moves downward through the stamping plate 414 to stamp the sheet metal. After stamping is completed, the demolding spring 4111 uses its own elasticity to drive the demolding plate 418 to demold the mold, achieving automatic demolding and reducing the time and workload of manual intervention. In traditional stamping dies, demolding often requires manual operation, which is not only time-consuming but may also lead to inaccurate operation due to human factors, affecting the production progress. However, the automatic ejection demolding part of the stamping can quickly and accurately push the part out of the mold after stamping, greatly shortening the production cycle. Since the demolding process is automatic, the mold can be prepared for the next stamping more quickly, realizing continuous production and increasing the output per unit time.

[0033] Working principle: First, the sheet metal to be processed is placed on top of the lower mold base 416. Then, the telescopic cylinder 413 is activated. After the telescopic cylinder 413 is activated, the upper module 415 moves downward through the stamping plate 414 to stamp the sheet metal. After stamping is completed, the demolding spring 4111 uses its own elasticity to drive the demolding plate 418 to demold the mold. During the stamping process, the buffer plate 3111 moves downward on the positioning slide rod 318. During the downward movement of the buffer plate 3111, the buffer spring 318 buffers and absorbs the impact pressure. The linkage slide rod 315 also moves downward with the buffer plate 3111. During the movement of the linkage slide 315, the return spring 317 is driven to perform secondary buffering. After the processing is completed, the return spring 317 drives the linkage slide 315 and the buffer plate 3111 back to their original positions through its own elasticity. When it is necessary to adjust the buffering force, the adjustment cylinder 312 is activated to drive the buffer adjustment plate 313 to move on the positioning slide 318. When the buffer adjustment plate 313 moves upward, it compresses the buffer spring 318 to reduce the buffering effect. When the buffer adjustment plate 313 moves downward, it increases the pre-compression amount, which makes the buffer spring 318 generate a large reaction force with a small displacement, thereby enhancing the buffering effect.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A high-buffered stamping die for automotive parts with automatic ejection and demolding, comprising a support plate (1), a stamping buffer section (3), and a stamping demolding section (4), characterized in that, A support rod (2) is fixedly installed on the bottom outer wall of the support plate (1), and a support pad is fixedly installed at the bottom of the support rod (2); the stamping buffer part (3) is set on the top of the support plate (1); the stamping demolding part (4) is set on the top of the support plate (1).

2. The high-buffered automotive parts stamping die with automatic ejection and demolding as described in claim 1, characterized in that, The stamping buffer section (3) specifically includes: The positioning slide rod (318) is fixedly installed on the top of the support plate (1); The cylinder mounting bracket (311) is fixedly installed on the bottom of the support plate (1); A buffer plate (3111) is set on top of the support plate (1); An adjusting cylinder (312) is fixedly installed inside the cylinder mounting bracket (311).

3. The high-buffered automotive parts stamping die with automatic ejection and demolding as described in claim 2, characterized in that, The telescopic end of the regulating cylinder (312) extends through the bottom outer wall of the support plate (1) and extends to the top of the support plate (1). The telescopic end of the regulating cylinder (312) is fixedly connected to a buffer regulating plate (313). The buffer regulating plate (313) is provided with a positioning sliding hole and a round hole respectively. A fixing sleeve (314) is fixedly installed on the top of the buffer regulating plate (313). The buffer plate (3111) is provided with an installation sliding hole.

4. The high-buffered automotive parts stamping die with automatic ejection and demolding as described in claim 3, characterized in that, The buffer plate (3111) is movably sleeved on the outer wall of the positioning slide rod (318) through the mounting sliding hole. The buffer adjustment plate (313) is movably sleeved on the outer wall of the positioning slide rod (318) through the round hole. A connecting slide rod (315) is fixedly installed on the bottom outer wall of the buffer plate (3111). The other end of the connecting slide rod (315) movably passes through the top of the support plate (1) and extends to the bottom of the support plate (1). A limit block (316) is fixedly installed on the other end of the connecting slide rod (315).

5. The high-buffered automotive parts stamping die with automatic ejection and demolding as described in claim 4, characterized in that, The outer wall of the linkage slide rod (315) is fitted with a reset spring (317). One end of the reset spring (317) is fixedly connected to the limiting block (316), and the other end of the reset spring (317) is fixedly connected to the bottom of the support plate (1).

6. A high-buffered automotive parts stamping die with automatic ejection and demolding as described in claim 5, characterized in that, The outer wall of the positioning slide rod (318) is movably fitted with a buffer spring (319). One end of the buffer spring (319) is fixedly connected to the bottom of the buffer plate (3111), and the other end of the buffer spring (319) is fixedly connected to the top of the buffer adjustment plate (313). A circular groove (3112) is opened on the top of the buffer plate (3111).

7. The high-buffered automotive parts stamping die with automatic ejection and demolding as described in claim 1, characterized in that, The stamping demolding part (4) specifically includes: The support block (411) is fixedly installed on the top of the support plate (1); The lower mold base (416) is fixedly installed on the top of the buffer plate (3111); The release spring (4111) is located inside the circular groove (3112).

8. A high-buffered automotive parts stamping die with automatic ejection and demolding as described in claim 7, characterized in that, A support top plate (412) is fixedly installed on the top of the support block (411). A telescopic cylinder (413) is provided on the top of the support top plate (412). The telescopic end of the telescopic cylinder (413) extends through the top of the support top plate (412) and extends to the bottom of the support top plate (412). A stamping plate (414) is fixedly connected to the telescopic end of the telescopic cylinder (413). An upper module (415) is fixedly installed on the bottom of the stamping plate (414). The lower mold... The inner wall of the base (416) is provided with a strip groove (417). The lower mold base (416) is connected to the circular groove (3112) through the strip groove (417). One end of the demolding spring (4111) is fixedly connected to the demolding template (418). The other end of the demolding spring (4111) is fixedly connected to the inner wall of the circular groove (3112). A module (419) is fixedly installed on the inner wall of the lower mold base (416). The demolding template (418) is adapted to the strip groove (417).