Stamping die for automobile parts

By introducing bracket and ejector pin structures and positioning assembly mechanisms into automotive parts stamping dies, the problem of parts being difficult to remove from the cavity has been solved, achieving rapid demolding and efficient processing.

CN224128411UActive Publication Date: 2026-04-17SUZHOU LVZHAN PRECISION COMPONENTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU LVZHAN PRECISION COMPONENTS CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

When processing thin sheet metal, existing automotive parts stamping dies often result in parts becoming embedded in the die cavity, making them difficult to remove quickly and affecting processing efficiency.

Method used

A stamping die for automotive parts was designed, comprising a first forming mechanism and a second forming mechanism. It adopts a bracket and ejector pin structure, combined with a positioning and assembly mechanism, to achieve rapid demolding.

Benefits of technology

The bracket and ejector pin structure enables rapid removal of parts, improves processing efficiency, and ensures the precision and accuracy of mold closing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stamping dies, and discloses an automobile part stamping die which comprises a first forming mechanism and a second forming mechanism, the first forming mechanism comprises a die holder, the second forming mechanism comprises a pressing die, and two forming cavities are symmetrically formed in the top end of the die holder. The bottom end of the pressing die is symmetrically and fixedly connected with two pressing blocks matched with the forming cavities. The auxiliary demolding structure is arranged, the groove is formed in the middle of the bottom end of the mold base, the two brackets are fixedly connected in the groove in a front-back symmetrical mode, the cross is assembled on the brackets in a sliding mode, and the two ejector rods are fixedly connected to the top end of the cross in a symmetrical mode. The centers of the inner bottom walls of the two forming cavities are provided with the sliding grooves allowing the two ejector rods to be connected in a sliding mode, after the automobile parts are punched, the pressing blocks of the pressing die are separated from the forming cavities, the cross can be moved upwards to drive the two ejector rods to eject out the automobile parts embedded in the forming cavities, and the automobile parts can be taken out rapidly.
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Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to a stamping die for automotive parts. Background Technology

[0002] Stamping dies for automotive parts are important process equipment used in automobile manufacturing to produce various metal parts. Automotive parts have high requirements for dimensional accuracy and quality, and stamping dies need to be designed and manufactured with high precision to ensure that the stamped parts meet the design requirements. For example, the precision requirements of stamping dies for engine cylinder blocks can be controlled within a very small tolerance range.

[0003] The existing automotive parts stamping dies still have the following problems when in use: when stamping thin automotive parts, that is, cutting and separating the sheet metal according to a certain shape and size, such as processing some flat parts and gaskets of the car body, the thin sheet metal is very easy to be embedded in the cavity after stamping, which is difficult to remove quickly, thus affecting the stamping efficiency of automotive parts. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a stamping die for automotive parts, solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for automotive parts, comprising a first forming mechanism and a second forming mechanism. The first forming mechanism includes a die base, and the second forming mechanism includes a pressure die. The die base has two forming cavities symmetrically arranged at its top. The pressure die has two pressure blocks symmetrically fixedly connected to its bottom. The bottom of the die base has a groove in the middle, and two brackets are symmetrically fixedly connected to the groove. Crosses are slidably mounted on the two brackets. Two push rods are symmetrically fixedly connected to the top of the crosses. A sliding groove is provided at the center of the bottom wall of the two forming cavities for the two push rods to slide.

[0008] As a further embodiment of this utility model: a positioning assembly mechanism is provided between the mold base and the pressing mold. A first mounting groove is provided at each of the four corners of the top of the mold base, and a second mounting groove is provided at each of the four corners of the bottom of the pressing mold. The same telescopic rod and spring are fixedly connected between the first mounting groove and the second mounting groove at the same corner. The spring is slidably sleeved on the outside of the telescopic rod on its corresponding side.

[0009] As a further improvement of this utility model: a set of positioning blocks is fixedly connected to the middle of the front and rear sides of the bottom end of the mold, and the set of positioning blocks consists of two blocks arranged symmetrically. The top of the mold base is provided with a positioning groove for the positioning blocks to slide and fit.

[0010] As a further improvement of this utility model: a mounting base is fixedly connected to the lower center of each end of the mold base; two slots for sliding connection of the bracket are symmetrically opened at the bottom of the cross; a handle is fixedly connected to each end of the cross; and a connecting seat is fixedly connected to the middle of each side of the top of the mold.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, an auxiliary demolding structure is provided. A groove is provided in the middle of the bottom end of the mold base, and two brackets are fixedly connected in a symmetrical manner in the groove. A cross is slidably assembled on the bracket, and two push rods are fixedly connected in a symmetrical manner at the top of the cross. A sliding groove is provided at the center of the bottom wall of the two molding cavities for the two push rods to slide and connect. After the automotive parts are stamped, the pressure block of the mold is separated from the molding cavity, and the cross can be moved upward to drive the two push rods to push out the automotive parts embedded in the molding cavity, so as to achieve quick removal.

[0013] 2. In this utility model, a positioning assembly structure is provided between the mold base and the pressing mold. That is, the four corners of the mold base and the pressing mold are provided with mounting grooves. A telescopic rod is fixedly connected between two mounting grooves at the same corner, which can realize the positioning and guidance between the mold base and the pressing mold. At the same time, positioning blocks are provided on the front and rear sides of the bottom end of the pressing mold, and positioning grooves matching the positioning blocks are provided on the front and rear sides of the top end of the mold base, which ensures the accuracy and precision of mold closing between the mold base and the pressing mold. Attached Figure Description

[0014] Figure 1 This is a perspective view of the entire utility model;

[0015] Figure 2 The first forming mechanism and the ejection mechanism of this utility model are three-dimensional. Figure 1 ;

[0016] Figure 3 The first forming mechanism and the ejection mechanism of this utility model are three-dimensional. Figure 2 ;

[0017] Figure 4 This is a perspective view of the second forming mechanism of this utility model.

[0018] In the diagram: 1. First forming mechanism; 2. Second forming mechanism; 3. Ejection mechanism; 11. Mold base; 12. Forming cavity; 13. Slide groove; 14. Positioning groove; 15. First mounting groove; 16. Mounting seat; 17. Telescopic rod; 18. Spring; 19. Bracket; 21. Press mold; 22. Positioning block; 23. Pressing block; 24. Second mounting groove; 25. Connecting seat; 31. Cross; 32. Handle; 33. Ejector rod; 34. Slot. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4In this embodiment of the present invention, a stamping die for automotive parts includes a first forming mechanism 1 and a second forming mechanism 2. The first forming mechanism 1 includes a die base 11, and the second forming mechanism 2 includes a pressure die 21. The top of the die base 11 has two forming cavities 12 symmetrically arranged. The bottom of the pressure die 21 has two pressure blocks 23 symmetrically fixedly connected to the matching forming cavities 12. A groove is provided in the middle of the bottom of the die base 11, and two brackets 19 are symmetrically fixedly connected in the groove. Crosses 31 are slidably mounted on the two brackets 19. Two push rods 33 are symmetrically fixedly connected to the top of the crosses 31. A feed rod is provided at the center of the bottom wall of the two forming cavities 12. The slide groove 13, which is slidably connected to the two ejector rods 33, is equipped with an auxiliary demolding structure, namely the ejection mechanism 3. The bottom center of the mold base 11 has a groove, and two brackets 19 are fixedly connected in a symmetrical manner in the groove. A cross 31 is slidably mounted on the bracket 19. Two ejector rods 33 are fixedly connected in a symmetrical manner at the top of the cross 31. The center of the bottom wall of the two forming cavities 12 has a slide groove 13 for the two ejector rods 33 to slide. After the automotive parts are stamped, the pressure block 23 of the mold 21 is separated from the forming cavity 12. The cross 31 can be moved upward to drive the two ejector rods 33 to eject the automotive parts embedded in the forming cavity 12, so as to achieve quick removal.

[0023] A positioning assembly mechanism is provided between the mold base 11 and the pressing mold 21. A first mounting groove 15 is provided at each of the four corners of the top of the mold base 11, and a second mounting groove 24 is provided at each of the four corners of the bottom of the pressing mold 21. The same telescopic rod 17 and spring 18 are fixedly connected between the first mounting groove 15 and the second mounting groove 24 at the same corner. The spring 18 is slidably sleeved on the outside of the telescopic rod 17 on its corresponding side. A positioning assembly structure is provided between the mold base 11 and the pressing mold 21, that is, mounting grooves are provided at the four corners of the mold base 11 and the pressing mold 21, and a telescopic rod 17 is fixedly connected between the two mounting grooves at the same corner, which can realize the positioning and guidance between the mold base 11 and the pressing mold 21.

[0024] A set of positioning blocks 22 are fixedly connected to the middle of the front and rear sides of the bottom end of the mold 21. There are two positioning blocks 22 in a set and they are arranged symmetrically. The top of the mold base 11 is provided with a positioning groove 14 for the positioning blocks 22 to slide and fit. The mold 21 has positioning blocks 22 on the front and rear sides of the bottom end, and the top of the mold base 11 has positioning grooves 14 that match the positioning blocks 22, which ensures the mold closing accuracy and precision between the mold base 11 and the mold 21.

[0025] Each end of the mold base 11 has a mounting base 16 fixedly connected to the lower center of each end. The mold base 11 can be fixedly installed by the mounting base 16 on both sides in conjunction with the mounting components. The bottom of the cross 31 has two slots 34 symmetrically arranged for the brackets 19 to slide and connect. The cross 31 can be placed on the two brackets 19. Each end of the cross 31 has a handle 32 fixedly connected to each end. The cross 31 can be adjusted by holding the handles 32. Each end of the top of the pressure mold 21 has a connecting seat 25 fixedly connected to the middle of each side. The pressure equipment can be connected by the two connecting seats 25 in conjunction with the connecting components. The pressure equipment can drive the pressure mold 21 to press against the mold base 11 to perform the mold closing operation.

[0026] The working principle of this utility model is as follows: the sheet metal can be placed in the forming cavity 12 at the top of the mold base 11. The pressure equipment can be connected through two connecting seats 25 and connecting components. The pressure equipment can drive the die 21 to press against the mold base 11 to perform mold closing. The die 23 can be used to punch and separate the sheet metal through the cooperation of the pressing block 23 and the forming cavity 12. It can process some flat parts, gaskets and other parts of automobile bodies. Since the whole is equipped with an auxiliary demolding structure, namely the ejection mechanism 3, a groove is opened in the middle of the bottom end of the mold base 11, and two brackets 19 are fixedly connected in a symmetrical manner in the groove. A cross 31 is slidably assembled on the bracket 19. Two ejector rods 33 are fixedly connected in a symmetrical manner at the top of the cross 31. A sliding groove 13 is opened at the center of the bottom wall of the two forming cavities 12 for the two ejector rods 33 to slide and connect. After the automobile parts are stamped, the pressing block 23 of the die 21 is separated from the forming cavity 12. The cross 31 can be moved upward to drive the two ejector rods 33 to eject the automobile parts embedded in the forming cavity 12, so as to achieve quick removal.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stamping die for automotive parts, comprising a first forming mechanism (1) and a second forming mechanism (2), wherein the first forming mechanism (1) comprises a die base (11) and the second forming mechanism (2) comprises a die (21); characterized in that The top of the mold base (11) has two symmetrically arranged molding cavities (12), and the bottom of the mold (21) is symmetrically connected to two matching molding cavities (12) pressing blocks (23). The mold base (11) has a groove in the middle of its bottom end, and two brackets (19) are fixedly connected in the groove in a symmetrical manner. Crosses (31) are slidably mounted on the two brackets (19). Two push rods (33) are fixedly connected in a symmetrical manner at the top of the crosses (31). A sliding groove (13) is provided at the center of the bottom wall of the two molding cavities (12) for the two push rods (33) to slide. A positioning and assembly mechanism is provided between the mold base (11) and the pressure mold (21).

2. The stamping die for an automobile part according to claim 1, characterized by: Each of the two ends of the mold base (11) is fixedly connected to a mounting base (16) at the lower center.

3. The stamping die for an automotive part according to claim 1, characterized in that: The bottom of the cross (31) has two slots (34) for sliding connection of the bracket (19) in a symmetrical manner. Each end of the cross (31) has a handle (32) fixedly connected to it.

4. The stamping die for an automotive part of claim 1, wherein: The mold base (11) has a first mounting groove (15) at each of the four corners at the top, and the mold (21) has a second mounting groove (24) at each of the four corners at the bottom.

5. The stamping die for an automotive part according to claim 4, characterized in that: The first mounting slot (15) and the second mounting slot (24) located at the same corner are fixedly connected by the same telescopic rod (17) and spring (18), and the spring (18) is slidably sleeved on the outside of the telescopic rod (17) on its corresponding side.

6. The stamping die for an automotive part of claim 1, wherein: A connecting seat (25) is fixedly connected to the middle of each side of the top of the mold (21).

7. The stamping die for automotive parts according to claim 1, characterized in that: A set of positioning blocks (22) is fixedly connected to the middle of the front and rear sides of the bottom end of the mold (21). There are two positioning blocks (22) in a set and they are arranged symmetrically. The top of the mold base (11) is provided with a positioning groove (14) for the positioning blocks (22) to slide and fit.