Punch forming seam shearing die applied to machining end of top cover gutter channel

Abstract

The utility model belongs to the technical field of automobile covering part stamping dies, and relates to a stamping forming seam shearing die applied to machining of the end of a top cover gutter channel, which comprises an upper die base, a lower die base, an upper pressing plate, an upper die downward forming insert, an upper die shearing insert and a lower die shearing forming insert. The stamping forming seam shearing die has the advantages that the stamping forming seam shearing die applied to machining the end of the top cover gutter channel is provided, the die structure is simplified, an original upper pressing plate and an original lower pressing plate of the die are changed into a single upper pressing plate, the upward turning process is omitted, the die structure design is facilitated, the die machining, manufacturing, lapping and debugging difficulty is lowered, and the production efficiency is improved. And the die cost is reduced, and the process method can be widely applied to similar plates.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies for automobile covering parts, and particularly relates to a stamping and forming shear seam die applied to the processing of the end part of a roof water trough. Background Art

[0002] With the rapid development of the global automobile manufacturing industry, especially the booming rise of the Chinese market, the automobile manufacturing industry has become an important part of the national industry. In the process of automobile manufacturing, body manufacturing is one of the key technical links, which is directly related to the safety, comfort and appearance quality of automobiles. Among them, the stamping forming process, as the core technology of body manufacturing technology, is of great significance for improving production efficiency, reducing costs and enhancing product quality.

[0003] Large covering parts of automobile bodies, such as engine hoods, roofs, doors, etc., are important components of automobile bodies. These covering parts usually have complex shapes, large structural dimensions, some also include spatial curved surfaces, and have extremely high requirements for surface quality. Therefore, how to efficiently and accurately manufacture these covering parts has become an important challenge faced by the automobile manufacturing industry.

[0004] In the traditional stamping forming process for processing automobile body covering parts, the process usually adopts the process of first shearing the waste of the sheet metal and then flanging it upward. The process is briefly described as follows: the upper die base, the upper die shearing insert, the upper pressure plate and the upper pressure plate insert move downward together with the upper die. When the upper pressure plate contacts and presses the sheet metal against the lower pressure plate, as the upper pressure plate continues to compress, the upper die shearing insert and the lower die upward flanging shearing insert act together to complete the shearing of the sheet metal. Subsequently, the upper pressure plate, the upper pressure plate insert and the upper die shearing insert continue to move downward with the upper die. During the compression stroke of the lower pressure plate, the upper pressure plate insert cooperates with the lower die forming insert and the lower die upward flanging shearing insert to complete the upward flanging of the sheet metal, and finally the forming is realized. However, since shearing and flanging are two independent processes and require separate die design and adjustment, this increases the process complexity and production cost. Therefore, optimizing the stamping process of automobile body covering parts, improving production efficiency, reducing costs and enhancing product quality have become urgent problems to be solved in the automobile manufacturing industry. Therefore, a new technical solution is needed to solve this problem. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: to provide a stamping and forming shear seam die applied to the processing of the end part of a roof water trough, and solve the problems of complex stamping process and difficult die debugging in the prior art by simplifying the die structure.

[0006] A stamping and forming shear seam die applied to the processing of the end part of a roof water trough, characterized in that: it includes an upper die base and a lower die base, and an upper pressure plate, an upper die downward forming insert and an upper die shearing insert are arranged on the upper die base;

[0007] A upper pressure plate is slidably arranged on the upper die base, and the upper die downward forming insert is fixedly connected to the upper die base. The upper die shearing insert is fixedly connected to the upper die downward forming insert.

[0008] A lower die shearing and forming insert is fixedly arranged on the lower die base.

[0009] The upper die base and the lower die base are fixedly arranged on the stamping machine table.

[0010] The upper die downward forming insert is fixed to one side of the upper die base by pins and screws, and the upper die shearing insert is fixed on the upper die downward forming insert by pins and screws.

[0011] A plurality of guide plates are arranged on the outer wall of the upper pressure plate, corresponding to a plurality of guide sliding surfaces on the inner wall of the upper die base. The guide plates and the guide sliding surfaces form sliding tracks one by one. The inner wall of the upper die base is connected to the upper pressure plate through a plurality of elastic elements to drive the upper pressure plate to slide up and down along the tracks formed by the guide plates and the guide sliding surfaces.

[0012] The upper pressure plate and the lower die shearing and forming insert cooperate with each other to fix the sheet material.

[0013] The upper die shearing insert performs shearing by cooperating with the lower die shearing and forming insert.

[0014] The upper die downward forming insert performs shaping by cooperating with the lower die shearing and forming insert.

[0015] U-shaped grooves are arranged on both sides of the upper die base and the lower die base. The number of the U-shaped grooves is more than 2. The upper die base and the lower die base are respectively fixed to the stamping machine table through screws passing through the U-shaped grooves.

[0016] A gasket is arranged between the pin and the screw.

[0017] The elastic element is a nitrogen spring.

[0018] Through the above design scheme, the utility model can bring the following beneficial effects: It provides a stamping and forming shearing die applied to the processing of the end part of the top cover water trough, simplifies the die structure, changes the original upper and lower pressure plates to a single upper pressure plate, omits the upward turning process, which is convenient for the die structure design, reduces the die processing and manufacturing, grinding and debugging difficulties, reduces the die cost, and this process method can be widely applied in similar plate parts. Description of the Drawings

[0019] The following further describes the utility model in conjunction with the drawings and specific embodiments:

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 For Figure 1 A magnified schematic view of part A at the square box.

[0022] Figure 3 It is a schematic structural view of the prior art.

[0023] In the figure, 1 - upper die holder, 101 - guide sliding surface, 102 - elastic element, 2 - lower die holder, 3 - upper pressure plate, 301 - guide plate, 4 - upper die downward forming insert, 5 - upper die shearing insert, 6 - lower die shearing forming insert, 7 - U-shaped groove, 44 - upper pressure plate insert, 66 - lower die forming insert, 88 - lower die upward flanging shearing insert, 99 - lower pressure plate, 110 - sheet metal. Specific embodiments

[0024] As Figure 1 and Figure 2 shown, a stamping forming shear seam die applied to the processing of the end of the water tank on the top cover is characterized in that it includes an upper die holder 1 and a lower die holder 2, and an upper pressure plate 3, an upper die downward forming insert 4 and an upper die shearing insert 5 are arranged on the upper die holder 1;

[0025] The upper pressure plate 3 is slidably arranged on the upper die holder 1, and the upper die downward forming insert 4 is fixedly connected to the upper die holder 1, and the upper die shearing insert 5 is fixedly connected to the upper die downward forming insert 4;

[0026] The lower die shearing forming insert 6 is fixedly arranged on the lower die holder 2;

[0027] The upper die holder 1 and the lower die holder 2 are fixedly arranged on the stamping machine table.

[0028] The upper die downward forming insert 4 is fixed to one side of the upper die holder 1 by pins and screws, and the upper die shearing insert 5 is fixed to the upper die downward forming insert 4 by pins and screws.

[0029] A plurality of guide plates 301 are arranged on the outer wall of the upper pressure plate 3, corresponding to a plurality of guide sliding surfaces 101 on the inner wall of the upper die holder 1. The guide plates 301 and the guide sliding surfaces 101 form a sliding track one by one; the inner wall of the upper die holder 1 is connected to the upper pressure plate 3 by a plurality of elastic elements 102 to drive the upper pressure plate 3 to slide up and down along the track formed by the guide plates 301 and the guide sliding surfaces 101.

[0030] The upper pressure plate 3 and the lower die shearing forming insert 6 cooperate with each other to fix the sheet metal 110.

[0031] The upper die shearing insert 5 performs shearing by cooperating with the lower die shearing forming insert 6.

[0032] The upper die downward forming insert 4 performs shaping by cooperating with the lower die shearing forming insert 6.

[0033] Both sides of the upper die base 1 and the lower die base 2 are provided with U-grooves 7, and the number of the U-grooves 7 is more than 2. The upper die base 1 and the lower die base 2 are respectively fixed on the stamping machine table through screws passing through the U-grooves 7.

[0034] A gasket is arranged between the pin and the screw.

[0035] The elastic element 102 is a nitrogen spring.

[0036] As Figure 3 shown, in the prior art, the plate to be processed is placed on the lower pressing plate 99 on the lower die base 2. During the processing, the upper die assembly (the upper die base 1, the upper die shearing insert 5 and the upper pressing plate insert 44) moves downward with the upper die driven by the stamping machine. The elastic element 102 pushes the upper pressing plate 3 to slide down along the track formed by the 301 and the guide sliding surface 101 to contact and tightly press the sheet material 110, but the pressure borne by the upper pressing plate 3 is lower than the pressure of the lower pressing plate 99. During the compression process of the upper pressing plate 3, the upper die shearing insert 5 contacts the lower die upward flanging shearing insert 88 and gradually cuts into the sheet material 110, thereby completing the shearing process of the sheet part. After the shearing is completed, the upper pressing plate 3, the upper pressing plate insert 44 and the upper die shearing insert 5 continue to move downward with the upper die. During the process of downward compressing the lower pressing plate 99, the upper pressing plate insert 44 cooperates with the lower die forming insert 66 and the lower die upward flanging shearing insert 88 to turn up the edge part of the sheet material 110 to form a predetermined flanging contour until the final forming.

[0037] The working principle of the present application: The plate to be processed is placed on the lower die shearing and forming insert 6 on the lower die base 2. During the processing, the upper die assembly (the upper die base 1, the upper die shearing insert 5 and the upper die downward forming insert 4) starts to move downward with the upper die. This movement is provided by the driving force of the stamping machine, ensuring the synchronous movement of each component of the die. The upper pressing plate 3 slides downward along the track formed by the guide plate 301 and the guide sliding surface 101 under the action of the elastic element 102.

[0038] When the upper pressing plate 3 contacts the sheet material 110 under the action of the elastic element 102 and continues to move downward, it cooperates with the lower die shearing and forming insert 6 to firmly press the sheet material 110. It is ensured that the sheet material 110 will not move or deform during the shearing and forming processes.

[0039] After the sheet material 110 is pressed tightly, the upper die shearing insert 5 continues to move downward and starts to cooperate with the lower die shearing and forming insert 6 for shearing operation. The sheet material 110 is cut off to form the required shape and size. The upper die downward forming insert 4 continues to move downward and cooperates with the lower die shearing and forming insert 6 to perform the final downward forming on the sheet material.

[0040] Compared with the prior art, this application omits the step of upward flanging, that is, eliminates the step of "the lower platen 99 is compressed to cooperate with the upper platen insert 44, the lower die forming insert 66 and the lower die upward flanging and shearing insert 88 for flanging" in the prior art. The shearing and forming functions are integrated by the lower die shearing and forming insert 6, replacing the flanging process that requires multiple components to cooperate in the prior art. The composite action is completed by a single insert, reducing the complexity of the mold, making the mold structure simpler and the debugging more convenient. In this application, the mold structure is simplified and the number of moving parts is reduced. At the same time, the downward forming technology can ensure that the stamping process of the mold is more stable, improve the qualified rate of products, enhance the product quality, and thus reduce the production cost.

Claims

1. A stamping and shearing die for processing the end of a top cover water trough, characterized by: It comprises an upper die base (1) and a lower die base (2), wherein the upper die base (1) is provided with an upper pressing plate (3), an upper die downward forming insert (4) and an upper die shearing insert (5); An upper pressing plate (3) is slidably arranged on the upper die seat (1), and the upper die downward forming insert (4) is fixedly connected to the upper die seat (1), and the upper die shearing insert (5) is fixedly connected to the upper die downward forming insert (4); A lower die shearing and forming insert (6) is fixedly arranged on the lower die base (2); The upper die base (1) and the lower die base (2) are fixedly arranged on the punching machine table.

2. According to the stamping and forming shearing die for processing the end of the water trough of the top cover as described in claim 1, it is characterized by: The upper die downward forming insert (4) is fixed to one side of the upper die seat (1) by means of pins and screws, and the upper die shearing insert (5) is fixed to the upper die downward forming insert (4) by means of pins and screws.

3. According to the stamping and shearing die for processing the end of the water trough of the top cover as described in claim 1, it is characterized by: A plurality of guide plates (301) are provided on the outer wall of the upper pressing plate (3), corresponding to the plurality of guide sliding surfaces (101) on the inner wall of the upper die seat (1), and the guide plates (301) and the guide sliding surfaces (101) correspond one to one to form a sliding track; the inner wall of the upper die seat (1) is connected to the upper pressing plate (3) via a plurality of elastic elements (102), driving the upper pressing plate (3) to slide up and down along the track formed by the guide plates (301) and the guide sliding surfaces (101).

4. According to the stamping and forming shearing die for processing the end of the water trough of the top cover as described in claim 1, it is characterized by: The upper pressing plate (3) and the lower die shearing forming insert (6) cooperate with each other to fix the sheet material (110).

5. According to the stamping and forming shearing die for processing the end of the water trough of the top cover as described in claim 1, it is characterized by: The upper die shearing insert (5) performs shearing by cooperating with the lower die shearing forming insert (6).

6. A stamping and shearing die for processing the end of the water trough of the top cover according to claim 1, characterized in that: The upper die downward forming insert (4) is formed by cooperating with the lower die shearing forming insert (6).

7. A stamping and shearing die for processing the end of the water trough of the top cover according to claim 1, characterized in that: U grooves (7) are provided on both sides of the upper die base (1) and the lower die base (2), the number of the U grooves (7) is more than two, and the upper die base (1) and the lower die base (2) are respectively fixed to the punching machine table by screws passing through the U grooves (7).

8. According to claim 2, a stamping and shearing die for processing the end of the water trough of the top cover is characterized in that: A gasket is arranged between the pin and the screw.

9. A stamping and shearing die for processing the end of the water trough of the top cover according to claim 3, characterized in that: The elastic element (102) is a nitrogen spring.

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