R angle forming tool of automobile exhaust system

Abstract

The utility model relates to the technical field of punch forming tools, in particular to an R-angle forming tool of an automobile exhaust system. The lower end of an upper die holder is connected with an upper cushion block, a lower cushion plate is arranged below the upper cushion block, the lower end of the upper cushion block is connected with a punch, the lower end of the punch is provided with a female die, the lower cushion plate is connected below the female die, and the lower end of the lower cushion plate is connected with a lower die holder. The left side and the right side of the punch are connected with upper die pressing blocks respectively, lower die pressing blocks are arranged on the outer sides of the upper die pressing blocks, first cambered surface structures are arranged on the upper die pressing blocks, second cambered surface structures matched with the first cambered surface structures are arranged on the lower die pressing blocks, guide blocks are arranged on the two sides of the lower die pressing blocks, and rotating shaft rods are arranged in the lower die pressing blocks. Compared with the prior art, according to changes of supplied materials of each batch, the angle of the die tool can be adjusted to adapt to different tools, and the problems that in daily production, the quality of products is not qualified, and efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping forming tooling, and specifically relates to an R-angle forming tooling for an automobile exhaust system. Background Technique

[0002] In the design of the R-angle forming tooling for an automobile exhaust system, the precision requirement is crucial. The precision not only relates to the service life of the forming tooling, but also directly affects the performance of the exhaust system and the overall emission standard of the automobile. When pressing the material of the automobile exhaust rotating shaft in the prior art, the springback problem often occurs, and it is very difficult to meet the quality standard. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an R-angle forming tooling for an automobile exhaust system, which uses a rotating shaft to control the angle to achieve the purpose of controlling springback, making the production structure stable and also improving the production efficiency.

[0004] To achieve the above purpose, an R-angle forming tooling for an automobile exhaust system is designed, which includes an upper die base, an upper cushion block, a lower backing plate, a lower die base, a lower pad foot, and a lower support plate. The lower end of the upper die base is connected to the upper cushion block. A lower backing plate is provided below the upper cushion block. The lower end of the upper cushion block is connected to a punch. A die cavity is provided below the punch. The die cavity is connected to the lower backing plate below. The lower end of the lower backing plate is connected to the lower die base. Upper die pressing blocks are respectively connected to the left and right sides of the punch. Lower die pressing blocks are provided outside the upper die pressing blocks. An arc surface structure one is provided on the upper die pressing block. An arc surface structure two that matches the arc surface structure one is provided on the lower die pressing block. Guide blocks are provided on both sides of the lower die pressing block. A rotating shaft rod is provided inside the lower die pressing block. The two ends of the rotating shaft rod are rotatably connected to the guide blocks, and a limiting block is connected outside the lower die pressing block.

[0005] The lower die pressing block, the guide blocks, and the limiting block are all connected above the lower backing plate.

[0006] The upper end of a guide post is provided at the lower end of the upper die base, and the lower end of the guide post is connected to the guide post, and the lower end of the guide post is connected to the lower backing plate.

[0007] The lower die base is connected to the lower support plate through the lower pad foot.

[0008] A product is provided between the upper die pressing block and the lower die pressing block.

[0009] The die cavity, the lower backing plate, and the lower die base are connected through an inner guide post and an equal-height sleeve.

[0010] The upper die pressing block and the upper cushion block are connected by bolts.

[0011] Compared with the prior art, according to the changes in each batch of incoming materials, the die tooling can adjust the angle to adapt to different tooling problems, and solve a series of problems such as unqualified product quality and low efficiency in daily production. Brief Description of the Drawings

[0012] Figure 1 This is a schematic structural diagram of the present utility model.

[0013] Figure 2 This is the front view of the present utility model.

[0014] Figure 3 This is the side view of the present utility model.

[0015] Figure 4 This is the sectional view of the present utility model.

[0016] Figure 5 This is the schematic diagram of mold opening of the present utility model.

[0017] See Figures 1 to 5 , 1 is the upper die base, 2 is the upper cushion block, 3 is the product, 4 is the upper die pressing block, 5 is the lower die pressing block, 6 is the punch, 7 is the rotating shaft rod, 8 is the lower backing plate, 9 is the lower die base, 10 is the lower foot pad, 11 is the lower supporting plate, 12 is the equal-height sleeve, 13 is the inner guide post, 14 is the female die, 15 is the guiding block, 16 is the limiting block, 17 is the guide sleeve, 18 is the guide post, 19 is the guiding block hole, 20 is the arc surface structure one, 21 is the arc surface structure two, 22 is the bolt. Detailed Description of the Preferred Embodiment

[0018] The following further describes the present utility model according to the attached drawings.

[0019] As Figure 2 shown, the lower end of the upper die base 1 is connected to the upper cushion block 2, the lower backing plate 8 is provided below the upper cushion block 2, the lower end of the upper cushion block 2 is connected to the punch 6, the female die 14 is provided below the punch 6, the punch 6 is a horizontal structure, mainly to clamp the middle section of the product 3 to prevent the middle section of the product 3 from warping and affecting the quality of the product 3, the lower end of the female die 14 is connected to the lower backing plate 8, and the lower end of the lower backing plate 8 is connected to the lower die base 9, as Figure 4As shown in the figure, the punch 6 is respectively connected to the upper die pressing blocks 4 on both the left and right sides. The lower die pressing blocks 5 are arranged outside the upper die pressing blocks 4. The upper die pressing blocks 4 are provided with a first arc surface structure 20, and the lower die pressing blocks 5 are provided with a second arc surface structure 21 that cooperates with the first arc surface structure 20. The first arc surface structure 20 and the second arc surface structure 21 correspond to the forming R angle required by the product 3. Through the cooperation of the first arc surface structure 20 and the second arc surface structure 21, during the downward pressing process, both ends of the product 3 are squeezed by the upper die pressing blocks 4 and the lower die pressing blocks 5 and are in contact with the first arc surface structure 20 and the second arc surface structure 21, and the automatic R angle forming is achieved. On both sides of the lower die pressing block 5, there are guide blocks 15, and the guide blocks 15 are responsible for restricting the front and back force directions of the lower die pressing blocks 4 and 5. Inside the lower die pressing block 5, there is a rotating shaft rod 7, and both ends of the rotating shaft rod 7 are rotatably connected to the guide blocks 15. The rotating shaft rod 7 enables the lower die pressing block 5 to rotate between the guide blocks 15, so that the present utility model can process the differences of different batches of incoming materials by rotating the angle of the lower die pressing block 5. The outer side of the lower die pressing block 5 is connected to a limiting block 16, and the limiting block 16 restricts the rotation angle of the lower die pressing block 5.

[0020] The lower die pressing block 5, the guide block 15, and the limiting block 16 are all connected above the lower backing plate 8.

[0021] The lower end of the upper die base 1 is provided with the upper end of the guide post 18. The lower end of the guide post 18 is connected to the guide sleeve 17, and the lower end of the guide sleeve 17 is connected to the lower backing plate 8.

[0022] The lower die base 9 is connected to the lower support plate 11 through the lower pad feet 10.

[0023] There is a product 3 between the upper die pressing block 4 and the lower die pressing block 5.

[0024] The concave die 14, the lower backing plate 8, and the lower die base 9 are connected through the inner guide post 13 and the equal-height sleeve 12. When the mold is pressed downward, the outer guide post 18 and the guide sleeve 17 first perform preliminary positioning, and then the inner guide post 13 performs precise positioning to ensure the accuracy of the mold.

[0025] The upper die pressing block 4 and the upper pad block 2 are connected through bolts 22.

[0026] The specific implementation manner of the present utility model is as follows, as Figure 5As shown, in the initial state, the utility model is in an open state. At this time, the die 14 is connected to the top of the lower pad 8 through the inner guide column 13 and the equal height sleeve 12, and the product 3 is placed above the die 14. At this time, the angle of the lower die block 5 is rotated and adjusted according to the specific situation of the product 3 so that the surface of the product 3 can roughly fit with the arc structure 21 of the lower die block 5. After the adjustment is completed, the press is started to press the upper die base 1 downward. The outer guide column 18 and the guide sleeve 17 are first initially positioned, and then accurately positioned by the inner guide column 13. After ensuring the accuracy of the mold, continue to press downward. The upper die blocks 4 on both sides of the punch 6 first contact the product 3 and extrude. During the extrusion process, the surface of the product 3 fits with the arc structure 1 20 on the upper die block 4 and the arc structure 2 21 of the lower die block 5. The two ends of the product 3 are tilted. When it is almost completely extruded, the horizontal lower surface of the punch 6 contacts the product 3, fixing the product 3 on the die 14, preventing the waste problem caused by the rebound and bending of the product 3. Figure 4 As shown, after being pressed down to the limit position, the arc surface structure 1 20 and the arc surface structure 2 21 are completely fitted together, the product 3 is formed, the press is rebounded, the upper die base 1 is rebounded, and after the upper die base 1 is fully rebounded, the molded product 3 is taken out, and the process is repeated to put in the next batch of new materials to start a new batch of processing. The angle is controlled by the rotating shaft rod 7 to achieve the purpose of controlling rebound, the production process is stable, and the production efficiency can also be improved.

Claims

1. An R-angle forming tool for automobile exhaust systems, comprising an upper die base, an upper pad, a lower pad, a lower die base, a lower pad, and a lower support plate, characterized in that: The lower end of the upper die base (1) is connected to the upper pad (2), a lower pad (8) is provided below the upper pad (2), the lower end of the upper pad (2) is connected to the punch (6), the lower end of the punch (6) is provided with a die (14), the lower end of the die (14) is connected to the lower pad (8), the lower end of the lower pad (8) is connected to the lower die base (9), the left and right sides of the punch (6) are respectively connected to the upper die block (4), the outer side of the upper die block (4) is provided with a lower die block (5), the upper die block (4) is provided with an arc surface structure 1 (20), the lower die block (5) is provided with an arc surface structure 2 (21) matched with the arc surface structure 1 (20), guide blocks (15) are provided on both sides of the lower die block (5), a rotating shaft rod (7) is provided inside the lower die block (5), both ends of the rotating shaft rod (7) are rotatably connected to the guide blocks (15), and the outer side of the lower die block (5) is connected to the limit block (16).

2. The R-angle forming tool for automobile exhaust system according to claim 1, characterized in that: The lower mold block (5), the guide block (15), and the limit block (16) are all connected above the lower pad (8).

3. The R-angle forming tool for automobile exhaust system according to claim 1, characterized in that: The upper end of the upper die base (1) is provided with an upper end of a guide column (18), the lower end of the guide column (18) is connected to a guide sleeve (17), and the lower end of the guide sleeve (17) is connected to a lower pad (8).

4. The R-angle forming tool for automobile exhaust system according to claim 1, characterized in that: The lower die base (9) is connected to the lower support plate (11) via the lower pad (10).

5. The R-angle forming tool for automobile exhaust system according to claim 1, characterized in that: A product (3) is provided between the upper die pressing block (4) and the lower die pressing block (5).

6. The R-angle forming tool for automobile exhaust system according to claim 1, characterized in that: The die (14), the lower pad (8), and the lower die base (9) are connected via an inner guide column (13) and a sleeve (12) of equal height.

7. The R-angle forming tool for automobile exhaust system according to claim 1, characterized in that: The upper mold block (4) and the upper cushion block (2) are connected via bolts (22).

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