An exhaust pipe processing device for an automobile panel drawing die

Abstract

The application relates to the technical field of automobile accessory machining, in particular to a processing device for an exhaust pipe of a drawing die of an automobile covering part, which comprises a load-bearing base and a load-bearing truss in an integrated structure, the load-bearing base is provided with a stepping motor and a load-bearing rotating shaft driven to rotate by the stepping motor, the stepping motor is fixedly installed at an outer position of the load-bearing base, and the load-bearing rotating shaft is rotatably installed in the load-bearing base through a bearing; a load-bearing turntable is arranged on the load-bearing base through a limiting assembly; the load-bearing truss is provided with a hydraulic cylinder, and a plasticizing assembly is driven by the hydraulic cylinder. The upper support, the middle support and the lower support are sequentially arranged on the load-bearing turntable to symmetrically clamp and limit the longitudinal section of the exhaust pipe; the guide block driven by the hydraulic cylinder is arranged in the load-bearing truss to drive the end head of the soldering iron installed on the telescopic rod, so that the end head of the exhaust pipe is plastically shaped in the process of descending.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and in particular to a processing device for exhaust pipes using a drawing die for automotive body panels. Background Technology

[0002] Reinforcing plates on automobiles play a crucial role in body design. Extensive analysis reveals that the optimal manufacturing process after material preparation involves drawing, trimming, punching, side trimming, punching again, separation, flanging, and shaping. The drawing die is the first step in forming the left / right upper corner reinforcing plate, and its quality directly impacts product quality, production efficiency, and manufacturing costs. Combined with this, the exhaust pipe is also a vital component of the automobile. Existing exhaust pipes are shown in the instruction manual. Figure 7 As shown, the main body is an L-shaped hollow pipe, which is mainly composed of a longer longitudinal section and a shorter transverse section. In order to ensure the firm installation and safe use of the exhaust pipe, it is generally necessary to perform bending and transverse section opening shaping operations.

[0003] Existing technology, such as the exhaust pipe processing device for automotive body panel drawing dies disclosed in CN208373907U, is used for the rapid bending of exhaust pipes with a diameter not exceeding 8mm. It inserts the front end of the exhaust pipe to be bent into a traction sleeve on a bending arm. When the operator rotates the bending arm, the exhaust pipe is pulled by the traction sleeve and moves with the bending arm. During this movement, the front part of the exhaust pipe is bent into an arc shape by the combined force of the bending plate and the bending arm. However, considering... The exhaust pipe has a long overall structure and is cylindrical in shape. It is only fixed by a single limiting plate, which makes it easy for the exhaust pipe to move or even fall off during the pulling process. This makes it impossible to guarantee the stability of the exhaust pipe's position, and thus the accuracy of the position and dimensions of the bending parts. Moreover, in the subsequent molding process, the special structure of the exhaust pipe increases the difficulty of limiting and adjusting operations. In particular, when adjusting the angle, the exhaust pipe needs to be tightened and loosened frequently, which seriously affects the efficiency and quality of the molding process. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of difficult molding of exhaust pipes in automotive body panel drawing dies in the prior art, and to propose an exhaust pipe processing device for automotive body panel drawing dies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A processing device for exhaust pipes using drawing dies for automotive body panels includes an integrally structured load-bearing base and load-bearing truss. The load-bearing base is equipped with: A stepper motor and a load-bearing shaft driven by the stepper motor to rotate, wherein the stepper motor is fixedly installed on the outside of the load-bearing base, and the load-bearing shaft is rotatably installed in the load-bearing base through bearings; A load-bearing turntable, which is fixedly connected to a load-bearing rotating shaft; A limiting assembly for fixing exhaust pipe fittings, the limiting assembly being mounted on a load-bearing base via a load-bearing turntable; The load-bearing truss is equipped with: A hydraulic cylinder, which is fixedly installed on a load-bearing truss; A molding assembly for pressurizing and grooving the exhaust pipe fitting port, the molding assembly being driven by a hydraulic cylinder.

[0006] Preferably, the load-bearing truss is connected to the upper end of the load-bearing base, and the molding assembly is positioned above the limiting assembly via the load-bearing truss; The side wall of the load-bearing base is provided with a guide ring groove, and the load-bearing turntable is integrally provided with a guide rail that is slidably fitted in the guide ring groove.

[0007] Preferably, the load-bearing turntable includes: The upper support is integrally connected to the upper end of the load-bearing turntable; The central support and the guide through hole therein are integrally connected to the middle position of the load-bearing turntable, and the guide through hole is used to slide and mount the longitudinal section of the exhaust pipe fitting. The lower support is integrally connected to the lower end of the load-bearing turntable.

[0008] Preferably, the limiting assembly includes: A servo motor and a ball screw driven by the servo motor to rotate, wherein the servo motor is fixedly mounted on the lower bracket and the ball screw is rotatably mounted on the lower bracket via bearings; The lifting nut and the steering lever are provided. The lifting nut is adapted to be installed on the ball screw, and the steering lever pin is installed on the lower bracket and is movably pulled by the lifting nut. The guide groove and the lifting support platform located therein, the guide groove is opened in the load-bearing turntable, and the lifting support platform is slidably fitted in the guide groove, the lifting support platform is movably pulled by the steering lever, and it is used to place and support the transverse section of the exhaust pipe fitting; A fixed pulley and a lifting traction frame are provided. The fixed pulley is fixedly installed on the load-bearing turntable, and the lifting traction frame is slidably fitted into the upper bracket. The traction rope connects the lifting support platform and the lifting traction frame via a fixed pulley. The limit key and the return spring are bolted to the lifting traction frame and slidably sleeved in the upper bracket. The return spring is fixedly sleeved at the upper end of the limit key. The limiting assembly also includes: The drive worm gear and the reciprocating shaft are both rotatably mounted on the central support via bearings; A drive gear and a driven gear are meshed together, and the drive gear and the driven gear are respectively keyed to a ball screw and a drive worm; The driven worm gear and the steering rod are connected, wherein the driven worm gear is keyed to the reciprocating shaft and meshes with the drive worm, and the steering rod is fixedly connected to the reciprocating shaft; A limiting elongated hole and a limiting clamping block located therein, the limiting elongated hole being opened in the middle bracket, the limiting clamping block being slidably fitted in the limiting elongated hole, and being movably pulled by the steering rod.

[0009] Preferably, a first connecting rod is pinned between the lifting nut and the lower end of the steering lever, and a second connecting rod is pinned between the upper end of the steering lever and the lifting support platform.

[0010] Preferably, the end of the steering rod away from the reciprocating shaft is connected to the limiting clamp by a third connecting rod via a pin, and the free end of the limiting clamp is an arc-shaped structure corresponding to the outer wall surface of the exhaust pipe fitting.

[0011] Preferably, the molding assembly includes: A guide hole and a guide block located therein, wherein the guide hole is opened in the load-bearing truss and the guide block is slidably fitted in the guide hole; The traction component and the telescopic rod used to hoist the soldering iron tip are provided. The traction component is used to fix the output end of the hydraulic cylinder to the guide block, and the telescopic rod is slidably fitted in the load-bearing truss. The fourth link connects the guide block and the telescopic rod.

[0012] Preferably, the two ends of the fourth link are connected to the guide block and the telescopic rod pin, respectively.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention provides an upper support, a middle support and a lower support arranged in sequence on a load-bearing turntable. The guide through hole opened in the middle support allows the exhaust pipe fitting to be adjusted in height between the upper support and the lower support, which facilitates the disassembly and assembly of the exhaust pipe fitting on the processing device.

[0014] 2. The present invention has a ball screw driven by a servo motor on the lower support, and a lifting nut on the ball screw is used to pull the steering lever, thereby driving the lifting support platform used to support the exhaust pipe fitting to move up and down. At the same time, a lifting traction frame is set in the upper support using a fixed pulley and pulled by the lifting support platform, so that the synchronously moving limit key can lock and limit the opening of the longitudinal section of the exhaust pipe fitting.

[0015] 3. In this invention, a drive worm and a reciprocating shaft are rotatably mounted in the middle bracket. The drive gear and driven gear, and the drive worm and driven worm wheel are meshed together to make the steering rod move horizontally on the movable support limiting clamp, so as to symmetrically clamp and limit the longitudinal section of the exhaust pipe.

[0016] 4. The present invention provides a stepper motor on the load-bearing base to drive the load-bearing turntable to rotate intermittently, so that the exhaust pipe fittings perform step-by-step rotational motion during the limiting and fixing process. By setting a guide block driven by a hydraulic cylinder in the load-bearing truss, the soldering iron end installed on the telescopic rod is driven, so that it pressurizes and shapes the transverse section end of the exhaust pipe fittings during the downward movement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an exhaust pipe processing device for automotive body panel drawing dies proposed in this invention; Figure 2 This is a rear view of an exhaust pipe processing device for an automotive body panel drawing die proposed in this invention; Figure 3 This is a side view of an exhaust pipe processing device for an automotive body panel drawing die proposed in this invention; Figure 4 This is a schematic diagram of the limiting assembly structure of an exhaust pipe processing device for automotive body panel drawing dies proposed in this invention; Figure 5 This is a side sectional view of an exhaust pipe processing device for an automotive body panel drawing die proposed in this invention; Figure 6 This is a sectional view of the limiting assembly of an exhaust pipe processing device for an automotive body panel drawing die proposed in this invention; Figure 7 A schematic diagram of the finished product structure of an exhaust pipe component formed by a drawing die for automotive body panels.

[0018] In the diagram: 1. Load-bearing base; 2. Load-bearing truss; 3. Stepper motor; 4. Hydraulic cylinder; 5. Load-bearing rotating shaft; 6. Load-bearing turntable; 601. Upper support; 602. Middle support; 603. Lower support; 7. Servo motor; 8. Ball screw; 9. Lifting nut; 10. Steering lever; 11. Guide groove; 12. Lifting support platform; 13. First connecting rod; 14. Second connecting rod; 15. Fixed pulley; 16. Lifting traction... 17. Pull frame; 18. Traction rope; 19. Limiting key; 20. Return spring; 21. Guide through hole; 22. Drive worm gear; 23. Reciprocating shaft; 24. Drive gear; 25. Driven worm gear; 26. Steering rod; 27. Limiting elongated hole; 28. Limiting clamp; 29. ​​Third connecting rod; 30. Guide elongated hole; 31. Guide block; 32. Traction component; 33. Telescopic rod; 34. Fourth connecting rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-7 A device for processing exhaust pipes using a drawing die for automotive body panels includes an integrally structured load-bearing base 1 and a load-bearing truss 2. It should be noted that by setting a molding assembly on the load-bearing truss 2 above the exhaust pipe fitting, the angle of the exhaust pipe fitting can be easily adjusted, enabling molding operations at various angles.

[0021] First, the load-bearing base 1 is equipped with: ① The stepper motor 3 and the load-bearing rotating shaft 5 driven by it are fixedly installed on the outside of the load-bearing base 1, and the load-bearing rotating shaft 5 is rotatably installed in the load-bearing base 1 through the bearing. Under the driving action of the stepper motor 3, the exhaust pipe fitting fixed on the load-bearing turntable 6 is rotated in a circumferential direction, which facilitates the shaping of the transverse section of the exhaust pipe at multiple angles. ② Load-bearing turntable 6, which is fixedly connected to the load-bearing rotating shaft 5, as shown in the instruction manual. Figure 3 With appendix Figure 4 It is worth noting that the load-bearing turntable 6 includes: Upper bracket 601 is integrally connected to the upper end of the load-bearing turntable 6; The middle bracket 602 and the guide through hole 20 opened therein are integrally connected to the middle position of the load-bearing turntable 6, and the guide through hole 20 is used to slide the longitudinal section of the exhaust pipe fitting. The lower support 603 is integrally connected to the lower end of the load-bearing turntable 6.

[0022] It is worth noting that the upper support 601, the middle support 602 and the lower support 603 are not set entirely according to their height positions, because the load-bearing turntable 6 rotates under the drive of the stepper motor 3, causing the height positions of the three to be adjusted accordingly.

[0023] ③ A limiting assembly for fixing the exhaust pipe fittings. The limiting assembly is mounted on the load-bearing base 1 via the load-bearing turntable 6. Refer to the instruction manual appendix. Figure 3 Appendix Figure 4 With appendix Figure 6 , On the one hand, the limit assembly includes: The servo motor 7 and the ball screw 8 driven by it are fixedly mounted on the lower bracket 603, and the ball screw 8 is rotatably mounted on the lower bracket 603 through bearings. The lifting nut 9 and the steering lever 10 are connected. The lifting nut 9 is adapted to be installed on the ball screw 8, and the steering lever 10 is mounted on the lower bracket 603 with a pin. The lifting nut 9 is movably pulled by the steering lever 9. The guide groove 11 and the lifting support platform 12 located therein are connected. The guide groove 11 is formed in the load-bearing turntable 6, and the lifting support platform 12 is slidably fitted into the guide groove 11. The lifting support platform 12 is movably pulled by the steering lever 10 and is used to place and support the transverse section of the exhaust pipe fitting. See the attached instruction manual. Figure 1 The lifting support platform 12 has a groove structure adapted to the exhaust pipe fitting, which is used to initially place the L-shaped exhaust pipe fitting. By adjusting the height position of the lifting support platform 12, the exhaust pipe fitting can be adjusted accordingly. At the same time, the limit key 18 is used to lock and limit the opening of its longitudinal section. The fixed pulley 15 and the lifting traction frame 16 are fixedly installed on the load-bearing turntable 6, and the lifting traction frame 16 is slidably fitted in the upper bracket 601. The traction rope 17 is connected to the lifting support platform 12 and the lifting traction frame 16 via the fixed pulley 15. The limit key 18 and the return spring 19 are bolted to the lifting traction frame 16 and are slidably sleeved in the upper bracket 601. The return spring 19 is fixedly sleeved at the upper end of the limit key 18. It should be noted that the traction rope 17 is preferably made of steel cable to avoid the elasticity of its own structure from failing to guarantee the positional stability of the lifting traction frame 16. As described above, while the lifting support platform 12 supports the exhaust pipe fitting to move upward, the limiting key 18 moves downward and is snapped together with the opening of the longitudinal section of the exhaust pipe fitting to achieve a fixed height position.

[0024] On the other hand, the limit assembly also includes: The drive worm gear 21 and the reciprocating shaft 22 are both rotatably mounted on the intermediate bracket 602 via bearings. (Refer to the attached instruction manual.) Figure 3 Specifically, the drive worm 21 and the reciprocating shaft 22 are both arranged symmetrically so that the ball screw 8 can be used to drive them. The drive gear 23 and the driven gear 24 are meshed together, and the drive gear 23 and the driven gear 24 are respectively keyed to the ball screw 8 and the drive worm 21; Driven worm gear 25 and steering rod 26 are connected. Driven worm gear 25 is keyed to reciprocating shaft 22 and meshes with drive worm 21. Steering rod 26 is fixedly connected to reciprocating shaft 22. The limiting elongated hole 27 and the limiting clamping block 28 located therein are provided. The limiting elongated hole 27 is opened in the middle bracket 602, and the limiting clamping block 28 is slidably fitted in the limiting elongated hole 27 and is movably pulled by the steering rod 26. To further explain, the limiting elongated hole 27 is symmetrically opened on both sides of the guide through hole 20, so that the limiting clamping blocks 28 moving in opposite directions can clamp and limit the longitudinal section of the exhaust pipe from both sides.

[0025] Secondly, the load-bearing truss 2 is equipped with: ① Hydraulic cylinder 4, which is fixedly installed on the load-bearing truss 2; ② A molding assembly for pressurizing and grooving the exhaust pipe fitting ports. The molding assembly is driven by hydraulic cylinder 4. Refer to the instruction manual. Figure 2 With appendix Figure 5 The molding assembly includes: The guide elongated hole 30 and the guide block 31 located therein, the guide elongated hole 30 is opened in the load-bearing truss 2, and the guide block 31 is slidably fitted in the guide elongated hole 30; The traction component 32 and the telescopic rod 33 used to hoist the soldering iron tip are used to fix the output end of the hydraulic cylinder 4 and the guide block 31. The telescopic rod 33 is slidably fitted in the load-bearing truss 2. It is worth noting that the soldering iron tip adopts a hollow cylindrical structure with a built-in heater, so that when the temperature of the soldering iron tip is not lower than 900℃, the horizontal section opening of the exhaust pipe can be pressurized and shaped. The fourth link 34 is used to connect the guide block 31 and the telescopic rod 33.

[0026] Based on the above approach, it can be further implemented through the following structural form: Firstly, the load-bearing truss 2 is connected to the upper end of the load-bearing base 1, and the molding assembly is set above the limiting assembly through the load-bearing truss 2. The exhaust pipe fitting on the load-bearing turntable 6 is rotated by the stepper motor 3 to facilitate the molding of the horizontal section opening of the exhaust pipe fitting.

[0027] Secondly, the side wall of the load-bearing base 1 is provided with a guide ring groove, and the load-bearing turntable 6 is integrally provided with a guide rail that is slidably fitted in the guide ring groove to ensure the rotational stability of the load-bearing turntable 6.

[0028] Third, a first connecting rod 13 is pin-connected between the lifting nut 9 and the lower end of the steering lever 10, and a second connecting rod 14 is pin-connected between the upper end of the steering lever 10 and the lifting support platform 12.

[0029] Fourth, the end of the steering rod 26 away from the reciprocating shaft 22 is connected to the limiting clamp 28 by a pin and a third connecting rod 29. The free end of the limiting clamp 28 is an arc-shaped structure corresponding to the outer wall of the exhaust pipe fitting, and a rubber pad with high temperature and wear resistance properties can be embedded to ensure that it tightly clamps the exhaust pipe fitting.

[0030] Fifth, the two ends of the fourth link 34 are respectively connected to the guide block 31 and the telescopic rod 33 pin.

[0031] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts existing technology in this field, so it will not be elaborated here.

[0032] The functional principle of this invention can be explained through the following operational methods: The longitudinal section of the L-shaped exhaust pipe fitting is fitted into the guide hole 20, so that the transverse section of the exhaust pipe fitting is placed on the lifting support platform 12. The servo motor 7 is turned on, and the output of the servo motor 7 drives the ball screw 8 to rotate, causing the lifting nut 9 to move vertically downward. The lifting nut 9 applies pressure to the lower end of the steering lever 10 through the first connecting rod 13, causing the steering lever 10 to deflect. The upper end of the steering lever 10 supports the lifting support platform 12 to move vertically upward in the guide groove 11 through the second connecting rod 14. The lifting support platform 12 supports the exhaust pipe fitting to move vertically upward along the guide hole 20. At the same time, the lifting support platform 12 pulls the lifting traction frame 16 to move vertically downward in the upper bracket 601 through the traction rope 17. The lifting traction frame 16 drives the limit key 18 to move downward synchronously and compresses the reset spring 19. When the exhaust pipe fitting moves to the predetermined height position, the limit lock 18 is fitted into the opening of the longitudinal section of the exhaust pipe fitting to initially limit the exhaust pipe fitting. At the same time, the ball screw 8 drives the drive worm 21 to rotate through the meshing drive gear 23 and driven gear 24. The drive worm 21 then drives the reciprocating shaft 22 to deflect through the driven worm wheel 25. The reciprocating shaft 22 supports the limiting clamp 28 to move horizontally in the limiting elongated hole 27 through the third connecting rod 29 on the steering rod 26, so as to clamp and limit the middle part of the longitudinal section of the exhaust pipe fitting. The stepper motor 3 is turned on by controlling the load-bearing base 1, so that the load-bearing turntable 6 drives the exhaust pipe to rotate intermittently. The hydraulic cylinder 4 is opened on the load-bearing truss 2. The output end of the hydraulic cylinder 4 drives the guide block 31 to slide in the guide elongated hole 30 through the traction component 32. The guide block 31 then pulls the telescopic rod 33 up and down through the fourth connecting rod 34. Due to the high temperature of the soldering iron tip, when it is in contact with the exhaust pipe fitting, it causes the opening of the transverse section of the exhaust pipe fitting to form an indented groove structure.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A processing device for exhaust pipes of automotive body panel drawing dies, comprising an integrally structured load-bearing base (1) and a load-bearing truss (2), characterized in that: The load-bearing base (1) is provided with: A stepper motor (3) and a load-bearing rotating shaft (5) driven by it to rotate. The stepper motor (3) is fixedly installed on the outside of the load-bearing base (1), and the load-bearing rotating shaft (5) is rotatably installed in the load-bearing base (1) through bearings. A load-bearing turntable (6) is fixedly connected to a load-bearing rotating shaft (5); A limiting assembly for fixing exhaust pipe fittings, the limiting assembly being mounted on a load-bearing base (1) via a load-bearing turntable (6); The load-bearing truss (2) is equipped with: Hydraulic cylinder (4), which is fixedly installed on the load-bearing truss (2); A molding assembly for pressurizing and grooving the exhaust pipe fitting port, the molding assembly being driven by a hydraulic cylinder (4).

2. The exhaust pipe processing device for automobile body panel drawing die according to claim 1, characterized in that, The load-bearing truss (2) is connected to the upper end of the load-bearing base (1), and the molding assembly is set above the limiting assembly through the load-bearing truss (2); The side wall of the load-bearing base (1) is provided with a guide ring groove, and the load-bearing turntable (6) is integrally provided with a guide rail that is slidably fitted in the guide ring groove.

3. The exhaust pipe processing device for automobile body panel drawing die according to claim 1, characterized in that, The load-bearing turntable (6) includes: The upper support (601) is integrally connected to the upper end of the load-bearing turntable (6); The middle support (602) and the guide through hole (20) therein are integrally connected to the middle position of the load-bearing turntable (6), and the guide through hole (20) is used to slide the longitudinal section of the exhaust pipe fitting; The lower support (603) is integrally connected to the lower end of the load-bearing turntable (6).

4. The exhaust pipe processing device for automobile body panel drawing die according to claim 3, characterized in that, The limiting assembly includes: A servo motor (7) and a ball screw (8) driven by it to rotate, the servo motor (7) being fixedly mounted on the lower bracket (603), and the ball screw (8) being rotatably mounted on the lower bracket (603) via bearings; The lifting nut (9) and the steering lever (10) are adapted to be installed on the ball screw (8), and the steering lever (10) is mounted on the lower bracket (603) by a pin and is movably pulled by the lifting nut (9). The guide groove (11) and the lifting support platform (12) located therein, the guide groove (11) is opened in the load-bearing turntable (6), and the lifting support platform (12) is slidably fitted in the guide groove (11). The lifting support platform (12) is movably pulled by the steering lever (10), and it is used to place and support the transverse section of the exhaust pipe fitting. Fixed pulley (15) and lifting traction frame (16), wherein the fixed pulley (15) is fixedly installed on the load-bearing turntable (6), and the lifting traction frame (16) is slidably fitted in the upper bracket (601); The traction rope (17) is connected to the lifting support platform (12) and the lifting traction frame (16) via the fixed pulley (15). Limiting key (18) and reset spring (19), the limiting key (18) is bolted to the lifting traction frame (16) and is slidably sleeved in the upper bracket (601), the reset spring (19) is fixedly sleeved at the upper end of the limiting key (18); The limiting assembly also includes: The drive worm (21) and the reciprocating shaft (22) are both rotatably mounted on the central support (602) via bearings; A drive gear (23) and a driven gear (24) are meshed together, and the drive gear (23) and the driven gear (24) are respectively keyed to the ball screw (8) and the drive worm (21); Driven worm gear (25) and steering rod (26), the driven worm gear (25) is keyed to the reciprocating shaft (22) and meshes with the drive worm (21), the steering rod (26) is fixedly connected to the reciprocating shaft (22); The limiting elongated hole (27) and the limiting clamp (28) located therein, the limiting elongated hole (27) is opened in the middle bracket (602), the limiting clamp (28) is slidably fitted in the limiting elongated hole (27), and it is movably pulled by the steering rod (26).

5. The exhaust pipe processing device for automobile body panel drawing die according to claim 4, characterized in that, The lifting nut (9) is connected to the lower end of the steering lever (10) by a first connecting rod (13) and the upper end of the steering lever (10) is connected to the lifting support platform (12) by a second connecting rod (14).

6. The exhaust pipe processing device for automobile body panel drawing die according to claim 4, characterized in that, The end of the steering rod (26) away from the reciprocating shaft (22) is connected to the limiting clamp (28) by a third link (29) with a pin, and the free end of the limiting clamp (28) is an arc-shaped structure corresponding to the outer wall of the exhaust pipe fitting.

7. The exhaust pipe processing device for automobile body panel drawing die according to claim 1, characterized in that, The molding assembly includes: A guide hole (30) and a guide block (31) located therein, wherein the guide hole (30) is opened in the load-bearing truss (2) and the guide block (31) is slidably fitted in the guide hole (30); The traction component (32) and the telescopic rod (33) used to hoist the soldering iron tip are provided. The traction component (32) is used to fix the output end of the hydraulic cylinder (4) to the guide block (31), and the telescopic rod (33) is slidably fitted in the load-bearing truss (2). The fourth link (34) is used to connect the guide block (31) and the telescopic rod (33).

8. The exhaust pipe processing device for automobile body panel drawing die according to claim 7, characterized in that, The fourth link (34) is connected at both ends to the guide block (31) and the telescopic rod (33) pins, respectively.

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