Adjustable reverse-arc forming die structure for high-strength plate of automobile

Abstract

The utility model relates to the field of automobile high -strength plate processing discloses an adjustable reverse arc forming die structure of automobile high -strength plate, including upper die, the lower part of upper die is provided with lower die, the inner wall of upper die is penetrated and has the threaded rod of rotary connection, the left end fixedly connected with swivel block of threaded rod, the outer wall screw thread connection of threaded rod has the moving plate, the right -hand end fixedly connected with extrusion rod of moving plate, the right -hand end contact of extrusion rod has fixed block, the bottom fixedly connected with arc block of fixed block, the inner wall of swivel block is provided with limit mechanism, the inner wall of lower die is provided with stress mechanism. In the utility model, through threaded rod transmission structure can adjust arc block position flexibly, quickly adapt to the arc forming demand of different specifications high -strength plate, and the adjustment process does not need complex tool, and operation is efficient, and the response ability of mould to diversified production task can be improved obviously.

Description

Technical Field

[0001] This utility model relates to the field of high-strength steel plate processing for automobiles, and in particular to an adjustable reverse arc forming mold structure for high-strength steel plates for automobiles. Background Technology

[0002] The high-strength steel sheet reverse arc forming mold is a key piece of equipment used in the automotive manufacturing industry to process high-strength steel sheets into reverse arc shapes. It has a wide and important application in the production of automotive parts, especially in the manufacturing process of body structural parts that require high-strength steel sheets with specific arc shapes.

[0003] In existing technologies, automotive high-strength sheet metal reverse-curve forming molds typically consist of an upper mold and a lower mold. The upper and lower molds work together, applying pressure to cause plastic deformation of the high-strength sheet, thereby obtaining the desired reverse-curve shape. The mold's structural design is customized according to different reverse-curve specifications to meet corresponding production needs. The existing technology has the following drawbacks: the position and curvature of existing arc-forming components are mostly fixed designs. When processing high-strength plates with different curvatures, it is often necessary to replace the entire mold or perform complex disassembly and repositioning of the core forming components. This not only makes the operation process cumbersome and time-consuming, but also requires multiple sets of mold components adapted to different curvatures. To address these issues, an adjustable reverse arc forming mold structure for automotive high-strength plates is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an adjustable reverse arc forming mold structure for high-strength automotive steel sheets, aiming to solve the problem that the forming arc of the mold cannot be adjusted in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable reverse arc forming mold structure for high-strength automotive steel sheets, comprising an upper mold, a lower mold disposed below the upper mold, a threaded rod rotatably connected through the inner wall of the upper mold, a rotating block fixedly connected to the left end of the threaded rod, a movable plate threadedly connected to the outer wall of the threaded rod, an extrusion rod fixedly connected to the right end of the movable plate, a fixed block contacting the right end of the extrusion rod, an arc-shaped block fixedly connected to the bottom end of the fixed block, a limit mechanism disposed on the inner wall of the rotating block, and a stress mechanism disposed on the inner wall of the lower mold; The limiting mechanism includes a pressing block, which is slidably connected to the inner wall of the rotating block, and the bottom end of the pressing block is elastically connected to the rotating block through a reset spring.

[0006] As a further description of the above technical solution: The stress mechanism includes a rubber pad, which is fixedly connected to the inner wall of the lower mold by fastening bolts.

[0007] As a further description of the above technical solution: The rubber pads are provided in multiple sets, and the multiple sets of rubber pads are evenly distributed along the mold cavity of the lower mold.

[0008] As a further description of the above technical solution: The bottom end of the pressing block is fixedly connected to one end of the reset spring, and the other end of the reset spring is fixedly connected to the inner wall of the bottom end of the rotating block.

[0009] As a further description of the above technical solution: The pressing block is engaged with the inner wall of the upper mold.

[0010] As a further description of the above technical solution: The movable plate is slidably connected to the inner wall of the upper mold.

[0011] As a further description of the above technical solution: The extrusion rod passes through and is slidably connected to the inner wall of the upper mold.

[0012] As a further description of the above technical solution: The rotating block is rotatably connected to the outer wall of the upper mold.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the position of the arc block can be flexibly adjusted through the threaded rod transmission structure, which can quickly adapt to the reverse arc forming requirements of high-strength plates of different specifications. The adjustment process does not require complicated tools, the operation is efficient, and it can significantly improve the mold's responsiveness to diversified production tasks.

[0014] 2. In this utility model, the deformation of the rubber pad effectively disperses the stress during the molding process, reduces local wear of the mold, and extends its service life; at the same time, the rubber pad is fixed with bolts, which facilitates quick replacement and maintenance, and ensures long-term stable operation of the mold and molding quality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an adjustable reverse arc forming mold structure for high-strength steel plates for automobiles proposed in this utility model. Figure 2 This is a cross-sectional view of the upper mold of an adjustable reverse arc forming mold structure for high-strength steel plates for automobiles proposed in this utility model. Figure 3 This is a cross-sectional view of the rotating block of an adjustable reverse arc forming mold structure for high-strength steel plates for automobiles proposed in this utility model. Figure 4 This is a cross-sectional view of the lower mold of an adjustable reverse arc forming mold structure for high-strength steel plates for automobiles proposed in this utility model.

[0016] Legend: 1. Upper mold; 2. Lower mold; 3. Threaded rod; 4. Rotating block; 5. Moving plate; 6. Extrusion rod; 7. Fixed block; 8. Arc block; 9. Return spring; 10. Pressing block; 11. Fastening bolt; 12. Rubber pad. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3 This utility model provides an embodiment of an adjustable reverse arc forming mold structure for automotive high-strength steel sheets, including an upper mold 1 and a lower mold 2 below the upper mold 1. The upper mold 1 and the lower mold 2 constitute the forming mold used for processing the entire automotive high-strength steel sheet. A threaded rod 3 is rotatably connected through the inner wall of the upper mold 1. A rotating block 4 is fixedly connected to the left end of the threaded rod 3, allowing the threaded rod 3 to rotate via the rotating block 4. A movable plate 5 is threadedly connected to the outer wall of the threaded rod 3. A slot corresponding to the threaded rod 3 is opened in the middle of the movable plate 5, which can satisfy the movement of the movable plate 5 along the threaded rod 3. The outer wall of the threaded rod 3 moves, and the right end of the moving plate 5 is fixedly connected to the extrusion rod 6. Both the extrusion rod 6 and the moving plate 5 are made of high-strength steel and can withstand large weight pressure. The right end of the extrusion rod 6 contacts the fixing block 7. The inner wall of the fixing block 7 is inclined. When the inclined surface is extruded, the fixing block 7 will move vertically. The bottom end of the fixing block 7 is fixedly connected to the arc block 8. The arc block 8 can extrude the high-strength steel plate of the car to deform it and make the high-strength steel plate of the car reach the specified shape. The inner wall of the rotating block 4 is provided with a limit mechanism, and the inner wall of the lower mold 2 is provided with a stress mechanism.

[0019] The limiting mechanism includes a pressing block 10, which is slidably connected to the inner wall of the rotating block 4. The inner wall of the rotating block 4 has a corresponding slot for the pressing block 10, which allows the pressing block 10 to move vertically along the slot. The bottom end of the pressing block 10 is elastically connected to the rotating block 4 through a reset spring 9.

[0020] Reference Figure 4 The stress mechanism includes a rubber pad 12, which is made of nitrile rubber. It buffers external forces and reduces stress through its own deformation. The rubber pad 12 is fixedly connected to the inner wall of the lower mold 2 by fastening bolts 11. There are multiple sets of rubber pads 12, which are evenly distributed along the mold cavity of the lower mold 2.

[0021] Reference Figures 1-3The bottom end of the pressing block 10 is fixedly connected to one end of the return spring 9. When the pressing block 10 moves downward, it will compress the return spring 9. When resetting, the spring force of the return spring 9 will carry the pressing block 10 to reset. The other end of the return spring 9 is fixedly connected to the inner wall of the bottom end of the rotating block 4. The pressing block 10 is snapped onto the inner wall of the upper mold 1. The upper mold 1 has a ring of slots corresponding to the pressing block 10, which can satisfy the pressing block 10 to be inserted into the slots. The moving plate 5 is slidably connected to the inner wall of the upper mold 1. The upper mold 1 has a slot corresponding to the moving plate 5, which can satisfy the moving plate 5 to move laterally along the slot. The extrusion rod 6 passes through and is slidably connected to the inner wall of the upper mold 1. The upper mold 1 has a slot corresponding to the extrusion rod 6, which can allow the extrusion rod 6 to pass through the upper mold 1 and squeeze the fixed block 7. The rotating block 4 is rotatably connected to the outer wall of the upper mold 1.

[0022] Working principle: First, when adjusting the forming arc of the high-strength steel plate, press the pressing block 10 downwards to compress the return spring 9, causing it to disengage from the slot on the inner wall of the upper mold 1 and release the limit on the rotating block 4. Then, rotate the rotating block 4, which drives the threaded rod 3 to rotate. The rotation of the threaded rod 3 causes the moving plate 5 to move laterally along the groove on the inner wall of the upper mold 1. The movement of the moving plate 5 drives the extrusion rod 6 to move, which pushes the fixed block 7, thereby moving the arc block 8. This adjusts the position of the arc block 8 to adapt to different high-strength steel plate reverse arc forming requirements. After adjustment, release the pressing block 10. The elasticity of the return spring 9 causes the pressing block 10 to reset and re-engage with the slot on the inner wall of the upper mold 1, limiting the rotating block 4 and fixing the position of the arc block 8. When adjusting again, simply follow the above steps.

[0023] When performing reverse arc forming on high-strength steel sheets for automobiles, the upper mold 1 presses down and cooperates with the lower mold 2 to form the high-strength steel sheet. At this time, the rubber pad 12 set on the inner wall of the lower mold 2 plays a role. The rubber pad 12 buffers the external forces generated during the forming process through its own deformation, reducing the stress on the mold and avoiding excessive stress concentration that could damage the mold. At the same time, multiple sets of rubber pads 12 are evenly distributed along the mold cavity of the lower mold 2, which can more evenly disperse the stress, ensuring the stable operation of the mold and the forming quality. Moreover, the entire rubber pad 12 can be quickly replaced by tightening bolts 11, making the operation relatively convenient.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable reverse-arc forming die structure for a high-strength sheet of an automobile, comprising an upper die (1), characterized in that: A lower mold (2) is provided below the upper mold (1). A threaded rod (3) is rotatably connected through the inner wall of the upper mold (1). A rotating block (4) is fixedly connected to the left end of the threaded rod (3). A moving plate (5) is threadedly connected to the outer wall of the threaded rod (3). An extrusion rod (6) is fixedly connected to the right end of the moving plate (5). A fixed block (7) is in contact with the right end of the extrusion rod (6). An arc-shaped block (8) is fixedly connected to the bottom end of the fixed block (7). A limit mechanism is provided on the inner wall of the rotating block (4). A stress mechanism is provided on the inner wall of the lower mold (2). The limiting mechanism includes a pressing block (10), which is slidably connected to the inner wall of the rotating block (4). The bottom end of the pressing block (10) is elastically connected to the rotating block (4) through a reset spring (9).

2. The adjustable reverse arc forming mold structure for high-strength automotive steel sheets according to claim 1, characterized in that: The stress mechanism includes a rubber pad (12), which is fixedly connected to the inner wall of the lower mold (2) by fastening bolts (11).

3. The adjustable reverse arc forming mold structure for high-strength automotive steel sheets according to claim 2, characterized in that: The rubber pads (12) are provided in multiple sets, and the multiple sets of rubber pads (12) are evenly distributed along the mold cavity of the lower mold (2).

4. The adjustable reverse arc forming mold structure for high-strength automotive steel sheets according to claim 1, characterized in that: The bottom end of the pressing block (10) is fixedly connected to one end of the reset spring (9), and the other end of the reset spring (9) is fixedly connected to the inner wall of the bottom end of the rotating block (4).

5. The adjustable reverse arc forming mold structure for high-strength automotive steel sheets according to claim 1, characterized in that: The pressing block (10) is engaged with the inner wall of the upper mold (1).

6. The adjustable reverse arc forming mold structure for high-strength automotive steel sheets according to claim 1, characterized in that: The movable plate (5) is slidably connected to the inner wall of the upper mold (1).

7. The adjustable reverse arc forming mold structure for high-strength automotive steel sheets according to claim 1, characterized in that: The extrusion rod (6) passes through and is slidably connected to the inner wall of the upper mold (1).

8. The adjustable reverse arc forming mold structure for high-strength automotive steel sheets according to claim 1, characterized in that: The rotating block (4) is rotatably connected to the outer wall of the upper mold (1).

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