Punch forming die for automobile part die production

Abstract

The utility model belongs to the technical field of punch forming dies, and particularly relates to a punch forming die for automobile part die production, which comprises a lower die and an upper die, mounting holes are formed in the surfaces of four corners of the lower die in a penetrating manner, a fixing block is mounted on the outer side wall of the upper die, and a butt joint rod is mounted at the bottom end of the fixing block. A butt joint block is installed on the outer side wall of the lower die, an assembling groove is formed in the butt joint block, a spring is installed in the assembling groove, the end of the spring is connected with a limiting plate, and a butt joint groove is formed in the surface of the butt joint block in a penetrating mode. Through the synergistic effect of the butt joint rod, the limiting plate and the spring, the spring can exert the elastic acting force of the spring to effectively buffer the impact force generated when the lower die and the upper die are assembled, so that the die is prevented from being abraded due to impact, the precision and the service life of the die are not influenced, and the service life of the die is prolonged. And meanwhile, the forming quality and the production efficiency of the automobile parts are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to stamping forming die technical field, concretely relates to a stamping forming die for automobile accessory die production. BACKGROUND

[0002] The stamping forming die, also known as a punch, a hardware die, and a hardware stamping die, is a pressure processing method for separating or forming materials by using a die fixed on a punch or a press machine to apply a certain pressure to metal or non-metal plates, so as to obtain parts with certain size requirements and qualified appearance quality. The stamping die is usually composed of an upper die and a lower die. The upper die is fixed on the slider of the punch, and the lower die is fixed on the workbench. During work, the material is sent between the dies. When the upper die descends, the material is punched by the male die to form the required shape. When the upper die rises, the punched parts are ejected by the ejection mechanism, and the waste material is removed by the unloading mechanism. This process can be a simple punching that is completed at a time, or a plurality of processes can be completed in a continuous die through multiple cycles.

[0003] In automobile accessory processing, the stamping die is usually composed of an upper die and a lower die. The upper die is fixed on the punch, and the lower die is fixed on the workbench. Then the upper die and the lower die are combined to punch the material into automobile accessories. However, one problem that cannot be ignored is that the impact force generated when the upper die and the lower die are combined will cause a certain degree of wear to the die itself. This wear not only reduces the precision and service life of the die, but also may affect the forming quality and production efficiency of the automobile accessories. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a stamping forming die for automobile accessory die production, aiming at solving the problem in the prior art that in automobile accessory processing, the stamping die is usually composed of an upper die and a lower die. The upper die is fixed on the punch, and the lower die is fixed on the workbench. Then the upper die and the lower die are combined to punch the material into automobile accessories. However, one problem that cannot be ignored is that the impact force generated when the upper die and the lower die are combined will cause a certain degree of wear to the die itself. This wear not only reduces the precision and service life of the die, but also may affect the forming quality and production efficiency of the automobile accessories.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stamping forming die for automobile accessory die production, comprising a lower die and an upper die, four corner surfaces of the lower die are provided with mounting holes, an outer side wall of the upper die is provided with a fixed block, a bottom end of the fixed block is provided with a butt joint rod, an outer side wall of the lower die is provided with a butt joint block, an inner part of the butt joint block is provided with an assembly groove, an inner part of the assembly groove is provided with a spring, an end part of the spring is connected with a limiting plate, and a surface of the butt joint block is provided with a butt joint groove.

[0006] The butt joint rod and the butt joint groove are matched in size, and the butt joint groove is connected with the assembly groove.

[0007] The limiting plate is elastically connected with the butt joint block through the spring.

[0008] The limiting plate is matched in size with the assembly groove.

[0009] The inside of the mounting hole is provided with a fixing bolt, the top surface of the lower die is connected with an annular block, and the inner wall of the annular block is connected with a sealing gasket.

[0010] The inner ring diameter size of the sealing gasket is same with the inner ring diameter size of the mounting hole, and the sealing gasket is connected with the annular block in interference.

[0011] The fixing bolt is connected with the annular block in sealing through the sealing gasket.

[0012] Compared with the prior art, the stamping forming die has the advantages that:

[0013] Through the cooperation of the butt joint rod, the limiting plate and the spring, the spring can exert the elastic force, effectively buffers the impact force generated when the lower die and the upper die are combined, thereby preventing the die from being worn due to the impact, ensuring the precision and service life of the die are not affected, and ensuring the forming quality and production efficiency of the automobile parts.

[0014] Through the cooperation of the sealing gasket and the annular block, after the lower die is stably installed by the fixing bolt, the mounting hole can be sealed, the gap between the fixing bolt and the mounting hole in the installation process is avoided, the debris generated by stamping is effectively prevented from invading, and the normal disassembly and assembly of the die are not disturbed. DETAILED DESCRIPTION

[0015] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0016] Figure 1 It is a schematic view of the main structure of the present application;

[0017] Figure 2 It is a schematic view of the main structure and the disassembly structure of the fixing bolt of the present application;

[0018] Figure 3 This is a cross-sectional view of the docking block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the sealing gasket annular block and the fixing bolts of this utility model.

[0020] In the diagram: 1. Lower mold; 2. Upper mold; 3. Mounting hole; 4. Fixing block; 5. Connecting rod; 6. Connecting block; 7. Assembly groove; 8. Spring; 9. Limiting plate; 10. Connecting groove; 11. Fixing bolt; 12. Annular block; 13. Sealing gasket. 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] Please see Figures 1-4 The present invention provides the following technical solution: a stamping die for producing automotive parts molds, comprising a lower die 1 and an upper die 2. The lower die 1 has mounting holes 3 through the four corner surfaces. The upper die 2 has a fixing block 4 installed on its outer side wall. The bottom end of the fixing block 4 is fitted with a connecting rod 5. The lower die 1 has a connecting block 6 installed on its outer side wall. The connecting block 6 has an assembly groove 7 inside. The assembly groove 7 has a spring 8 installed inside. The end of the spring 8 is connected to a limit plate 9. The connecting block 6 has a connecting groove 10 through the surface.

[0023] Preferably, the dimensions of the connecting rod 5 and the connecting groove 10 are matched, and the connecting groove 10 is connected to the assembly groove 7.

[0024] In practical use, after the mating rod 5 descends through the upper mold 2, it can be inserted into the mating groove 10 to abut against the limiting plate 9. Then, the compression spring 8 retracts. Subsequently, the elastic force of the spring 8 can buffer the impact force when the upper mold 2 and the lower mold 1 are closed, thereby preventing the mold from being worn due to impact and ensuring that the accuracy and service life of the mold are not affected. At the same time, it also ensures the molding quality and production efficiency of automotive parts. Then, the mating groove 10 is connected to the assembly groove 7 to ensure that the mating rod 5 can pass through the mating groove 10 and abut against the limiting plate 9.

[0025] Preferably, the limiting plate 9 can be elastically telescopically connected to the docking block 6 via the spring 8.

[0026] In practical use, when the limiting plate 9 is compressed, the spring 8 will undergo corresponding contraction deformation and, with the help of its own elastic force, push the limiting plate 9 in the opposite direction. During this process, the limiting plate 9 and the connecting rod 5 work closely together to effectively buffer and disperse the impact force generated when the upper mold 2 descends.

[0027] Preferably, the dimensions of the limiting plate 9 and the assembly groove 7 are compatible.

[0028] In practical use, when the limiting plate 9 is squeezed by external force, it will precisely cooperate with the assembly groove 7 to ensure stability during descent and effectively prevent any deviation or misalignment of the limiting plate 9 when it descends in coordination with the spring 8.

[0029] Preferably, a fixing bolt 11 is installed inside the mounting hole 3, an annular block 12 is connected to the top surface of the lower mold 1, and a sealing gasket 13 is connected to the inner wall of the annular block 12.

[0030] In practical use, after the fixing bolt 11 is tightened, it can fit tightly with the top of the annular block 12. Then, the sealing gasket 13 is pressed, thereby forming an effective sealing barrier around the mounting hole 3.

[0031] Preferably, the inner diameter of the sealing gasket 13 is the same as the inner diameter of the mounting hole 3, and the sealing gasket 13 and the annular block 12 are interference-fitted.

[0032] In practical use, the inner diameter of the sealing gasket 13 matches the size of the mounting hole 3, ensuring that the fixing bolt 11 can smoothly pass through the sealing gasket 13 and connect with the mounting hole 3. This design not only improves the ease of installation but also effectively utilizes the positioning and sealing functions of the sealing gasket 13 during the installation process.

[0033] Preferably, the fixing bolt 11 can form a sealed connection with the annular block 12 through the sealing gasket 13.

[0034] In practical use, the fixing bolt 11 is manually passed through the sealing gasket 13, ensuring a tight fit with the top of the annular block 12. This process ensures the bolt is securely installed. Subsequently, the elasticity and conformity of the sealing gasket 13 effectively form a reliable seal on the mounting hole 3, enhancing the overall sealing performance of the structure.

[0035] Working principle: The core structure of the stamping die consists of two main components: the lower die 1 and the upper die 2. The upper die 2 is stably fixed on the press, while the lower die 1 is firmly mounted on the worktable. When the die starts working, the raw material is precisely fed into the gap of the die. As the upper die 2 slowly descends, it applies strong pressure to the raw material, thereby precisely stamping out the required shape of the automotive dashboard part.

[0036] Furthermore, when the upper mold 2 descends and closes with the lower mold 1, the connecting rod 5 on the outer wall of the upper mold 2 smoothly passes through the connecting groove 10 until it contacts the limiting plate 9. As the connecting rod 5 continues to press down, the limiting plate 9 descends accordingly, compressing the spring 8 in the process, causing the spring 8 to contract and deform. Subsequently, the spring 8 uses its inherent elastic restoring force to push the limiting plate 9 in the opposite direction, forming a force that resists the descent of the upper mold 2. This force can effectively buffer the huge impact force generated when the upper mold 2 and the lower mold 1 close, thereby greatly reducing the wear of the mold caused by the impact and ensuring that the accuracy and service life of the mold are maintained for a long time. At the same time, this also provides a solid guarantee for the high-quality molding and efficient production of automotive parts.

[0037] It is worth noting that when spring 8 is compressed for a long time, its elastic force will decrease, which will lead to the disassembly and replacement of the connecting block 6. The connecting block 6 is fastened to the lower mold 1 with screws, which facilitates disassembly and assembly.

[0038] During the stamping process of automotive dashboard parts, a certain stamping force is applied, and this stamping force fluctuates. This stamping force is coordinated with the elastic force of spring 8, preventing it from being too large and failing to cooperate with spring 8. This ensures that the impact force guarantees the molding of the automotive plastic parts and does not affect the normal function of spring 8. In this way, spring 8 can effectively play a buffering role, preventing adverse effects caused by fluctuations in stamping force.

[0039] During the assembly of the lower die 1, the operator first removes the fixing bolt 11 and precisely inserts it through the annular block 12, then tightens it securely to the punch press. This step ensures that the fixing bolt 11 fits firmly against the top of the annular block 12, thus achieving a secure die installation. Furthermore, to further enhance the die's sealing performance, the operator utilizes the elasticity and conformability of the sealing gasket 13 to form a tight sealing barrier around the mounting hole 3. This design effectively prevents debris generated during the stamping process from entering the die gap, ensuring uninterrupted normal assembly and disassembly of the die, while also further improving the die's reliability and durability.

[0040] It is worth noting that the size of the sealing gasket 13 is larger than that of the annular block 12, and the sealing gasket 13 and the annular block 12 are connected by an interference fit. This facilitates disassembly and replacement if the sealing gasket 13 is damaged.

[0041] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are 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 stamping forming die for producing an automobile accessory die, comprising a lower die (1) and an upper die (2), a mounting hole (3) being formed through a corner surface of the lower die (1), characterized in that: The outer side wall of the upper die (2) is provided with a fixed block (4), the bottom end of the fixed block (4) is provided with a butt joint rod (5), the outer side wall of the lower die (1) is provided with a butt joint block (6), the inside of the butt joint block (6) is provided with an assembly groove (7); The inside of the assembly groove (7) is provided with a spring (8), the end of the spring (8) is connected with a limiting plate (9), the surface of the butt joint block (6) is provided with a butt joint groove (10).

2. The press forming die for producing an automobile part die according to claim 1, characterized in that: The size of the butt joint rod (5) and the butt joint groove (10) is matched, the butt joint groove (10) is communicated with the assembly groove (7).

3. The press forming die for producing an automobile part die according to claim 1, characterized in that: The limiting plate (9) is elastically telescopic connected with the butt joint block (6) through the spring (8).

4. The press forming die for producing an automobile part die according to claim 1, characterized in that: The size of the limiting plate (9) and the assembly groove (7) is matched.

5. The press forming die for producing an automobile part die according to claim 1, characterized in that: The inside of the mounting hole (3) is provided with a fixed bolt (11), the top surface of the lower die (1) is connected with an annular block (12), the inner wall of the annular block (12) is connected with a sealing gasket (13).

6. The press forming die for producing an automobile part die according to claim 5, characterized in that: The inner ring diameter size of the sealing gasket (13) is same with the inner ring diameter size of the mounting hole (3), the sealing gasket (13) is interference connected with the annular block (12).

7. The press forming die for producing an automobile part die according to claim 5, characterized in that: The fixed bolt (11) is sealing connected with the annular block (12) through the sealing gasket (13).

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