Automobile exhaust pipe welding equipment

Abstract

The invention discloses automobile exhaust pipe welding equipment, and relates to the technical field of exhaust pipe welding, the automobile exhaust pipe welding equipment comprises a supporting table and a welding gun, and further comprises a pipe body stabilizing mechanism, a cleaning adjusting mechanism and a follow-up air injection mechanism; by means of the design of the arc-shaped grooves, the sliding columns and the inner supporting plates, the inner wall of the automobile exhaust pipe can be tightly attached, uniform supporting force is provided, the exhaust pipe is preliminarily fixed, it is guaranteed that the position of the exhaust pipe is stable before welding, and welding errors caused by shaking or dislocation are reduced; by means of the design of a first threaded rod and an outer clamping plate, the outer wall of the exhaust pipe can be further clamped, the overall stability is enhanced, the exhaust pipe is further stabilized by combining preliminary fixing of an inner supporting plate, follow-up welding operation can be conducted more accurately, and therefore the exhaust pipe can be rapidly positioned.

Description

Technical Field

[0001] The present invention relates to the technical field of exhaust pipe welding, in particular to an automobile exhaust pipe welding device. Background Art

[0002] In the prior art, automobile exhaust pipes are important components of the engine exhaust system, used to discharge engine exhaust gas while reducing noise and pollution. They are usually installed between the engine exhaust branch pipe and the muffler. They are composed of a double-layer corrugated pipe wrapped in a wire mesh sleeve, which plays a role in reducing vibration and noise, and extending the life of the exhaust system. However, in the manufacturing process of automobile exhaust pipes, welding is a crucial process step, which is used to ensure that the connections between the various parts of the exhaust pipe are tight and seamless, thereby effectively preventing exhaust gas leakage, ensuring the normal operation of the engine and the effectiveness of the emission system. However, in the current process of welding automobile exhaust pipes, it is usually necessary to fix the ends of the exhaust pipes, and traditional fixing methods often cannot provide uniform support force, resulting in deformation or movement of the exhaust pipes during the welding process, increasing the risk of welding defects such as uneven welds, pores, cracks, etc., thereby reducing the welding quality. In addition, unstable fixation will also cause workers to repeatedly adjust the position of the exhaust pipe during the welding process, which not only prolongs the operation time and reduces work efficiency, but also increases the risk of workers being injured due to improper operation during the adjustment process, posing a potential threat to production safety and personnel health.

[0003] In view of this, the present invention proposes an automobile exhaust pipe welding device to remedy and improve the shortcomings of the prior art. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an automobile exhaust pipe welding device to solve the corresponding technical problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions: an automobile exhaust pipe welding device, comprising a support platform and a welding gun, and also comprising: a pipe body stabilizing mechanism, a cleaning and adjusting mechanism, and a follow-up air-jet mechanism; The pipe body stabilizing mechanism is used to perform bidirectional and stable clamping of the exhaust pipe; The cleaning and adjusting mechanism is used to adapt and clean the exhaust pipe; The follow-up air-jet mechanism is used to spray air to the surface of the exhaust pipe while the pipe body stabilizing mechanism is operating.

[0006] Preferably, the tube body stabilizing mechanism includes a support plate fixedly connected to the top of the support platform, the upper end of the support plate is fixedly connected to the first drive motor, the output end of the first drive motor is fixedly connected to a turntable, the turntable is rotatably connected to a circular gear disk on the side away from the support plate, the turntable is provided with annular sliding grooves equidistantly arranged on the side facing the circular gear disk, a sliding column is slidably connected in the sliding groove, the circular gear disk is provided with annular arc grooves equidistantly arranged, the sliding column and the arc groove are slidably connected, and the sliding column is fixedly connected to the inner support plate on the end away from the turntable.

[0007] Preferably, a second drive motor is fixedly connected to a side of the turntable away from the circular gear disc, an output end of the second drive motor is fixedly connected to a driving gear, and the driving gear is meshed with the circular gear disc.

[0008] Preferably, a mounting plate is fixedly connected to the side of the turntable facing the circular gear disc in an annular shape at equal intervals, a first threaded rod is threadedly connected to the mounting plate, and an outer clamping plate is rotatably connected to one end of the first threaded rod facing the inner support plate.

[0009] Preferably, the cleaning and adjustment mechanism includes a mounting bracket fixedly connected to the support plate, protective doors are symmetrically slidably connected to the mounting bracket, and the protective doors are clamped together, rectangular grooves are symmetrically opened on both sides of the mounting bracket, and a moving block is slidably connected to the bottom wall of the rectangular groove, one of the moving blocks is fixedly connected to a U-shaped telescopic plate, and a cleaning brush plate is fixedly connected to the side of the U-shaped telescopic plate away from the moving block.

[0010] Preferably, a second threaded rod is provided between the U-shaped telescopic plate and the moving block, and the second threaded rod is rotatably connected to the U-shaped telescopic plate, and the second threaded rod is threadedly connected to the moving block.

[0011] Preferably, a bracket is slidably connected to the mounting frame, and the bracket is fixedly connected to the welding gun, operating hand plates are symmetrically provided at the bottom of both ends of the bracket, a second telescopic rod is symmetrically fixedly connected between the operating hand plate and the bracket, a first telescopic rod is symmetrically fixedly connected between the operating hand plate and the moving block, and a first return spring is sleeved on the outer surface of the first telescopic rod.

[0012] Preferably, a positioning block is fixedly connected to the top of the operating hand plate, positioning grooves are equidistantly provided on the top wall of the rectangular groove, and the positioning block is engaged with one of the positioning grooves.

[0013] Preferably, the follow-up jet mechanism includes an extension rod fixedly connected to the outer surface of the turntable in a ring shape and at equal intervals, the extension rod is fixedly connected to a squeezing ball at one end away from the turntable, the lower end of the mounting frame is symmetrically fixedly connected to side plates, a sleeve is fixedly connected between the side plates, a piston rod is slidably connected through the end of the sleeve facing the turntable, a pressure ball is fixedly connected to the end of the piston rod facing the turntable, the squeezing ball is used to push the pressure ball, a second return spring is fixedly connected between the pressure ball and the sleeve, and the second return spring is sleeved on the outside of the piston rod.

[0014] Preferably, an air inlet pipe is fixedly connected vertically downward to the outer surface of one end of the sleeve away from the pressurized ball, an air outlet pipe is fixedly connected to the other end of the sleeve away from the pressurized ball, and a nozzle is fixedly connected to the air outlet pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the setting of the pipe body stabilizing mechanism, during the welding process of the automobile exhaust pipe, the design of the arc groove, the sliding column and the inner support plate can fit closely to the inner wall of the automobile exhaust pipe, provide uniform support force, and perform preliminary fixation on the exhaust pipe to ensure the stability of the position of the exhaust pipe before welding, reduce welding errors caused by shaking or dislocation, and after the exhaust pipe is initially fixed, the design of the first threaded rod and the outer clamping plate can further clamp the outer wall of the exhaust pipe to enhance the overall stability. Combined with the preliminary fixation of the inner support plate, the exhaust pipe is further stabilized, so that subsequent welding operations can be carried out more accurately, thereby helping to quickly position the exhaust pipe, not only reducing the number of repeated adjustments during the welding process, but also reducing the risk of accidental movement of the exhaust pipe during welding, preventing harm to workers. In addition, stable clamping can also reduce welding defects caused by movement or deformation of the exhaust pipe during welding, such as uneven welds, pores, cracks, etc., thereby improving welding quality.

[0016] (2) Through the setting of the cleaning adjustment mechanism, after the exhaust pipe is firmly clamped, the position of the cleaning brush plate can be changed by using the matching design of the operating hand plate, the moving block and the rectangular groove, so that the cleaning brush plate can correspond to the position of the part to be welded, so that the cleaning brush plate can be subsequently attached to the part to be welded of the exhaust pipe. After the position of the cleaning brush plate is moved, the cleaning brush plate can be pushed and attached to the outer surface of the exhaust pipe by using the design of the second threaded rod and the U-shaped telescopic plate. In conjunction with the rotation of the exhaust pipe, the part to be welded on the exhaust pipe can be pre-cleaned to remove oil, rust and other impurities on the part to be welded of the exhaust pipe, ensuring that the welding area is clean, thereby enhancing the adhesion of the solder and the density of the weld, reducing the occurrence of welding defects such as uneven welds, pores and cracks, and improving the welding quality; Among them, the clamping design of the positioning block and the positioning groove can ensure the stability of the operating hand plate after the position is adjusted, avoid the position deviation of the operating hand plate caused by external force, and thus ensure the accuracy of cleaning and welding work.

[0017] (3) By setting up the follow-up jet mechanism, utilizing the design of the squeezing ball and the pressure ball, and cooperating with the elastic force of the second return spring, the piston rod can continuously inhale or eject the external air, so that in the process of using the cleaning brush plate to clean the welding part of the outer surface of the exhaust pipe, the jet cleaning of the welding part can be realized simultaneously, effectively removing the dust, oil and other impurities accumulated during the welding process, ensuring the cleanliness of the welding surface, reducing the generation of welding defects such as pores and slag inclusions, thereby improving the strength and density of the weld. In addition, as the welding work proceeds, the follow-up jet mechanism can also cool the welding part to prevent high temperature from having an adverse effect on the quality of the weld, while protecting the operator from high temperature damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the connection between the rotating disk and the circular gear disk shown in the present invention; Figure 3 The present invention shows Figure 2 A in the middle is an enlarged structural diagram; Figure 4 This is a schematic diagram of the structure of the side panel connection shown in the present invention; Figure 5 This is a schematic diagram of the structure of the connection of the moving block shown in the present invention; Figure 6 This is a schematic diagram of the structure of the operating hand panel connection shown in the present invention.

[0019] The numbers in the figure are: 1. Support table; 2. Welding gun; 3. Tube stabilizing mechanism; 301. Support plate; 302. First drive motor; 303. Rotating plate; 304. Slide groove; 305. Slide column; 306. Inner support plate; 307. Circular gear plate; 308. Arc groove; 309. Second drive motor; 310. Driving gear; 311. Mounting plate; 312. First threaded rod; 313. Outer clamping plate; 4. Cleaning and adjustment mechanism; 401. Mounting frame; 402. Rectangular slot; 403. Moving block; 404. Second threaded rod; 405. U-shaped telescopic plate; 406. Cleaning brush plate; 407. First telescopic rod; 408. First return spring; 409. Operating hand plate; 410. Second telescopic rod; 411. Positioning block; 412. Bracket; 413. Positioning slot; 414. Protective door; 5. Follow-up jet mechanism; 501. Extension rod; 502. Squeeze ball; 503. Side plate; 504. Sleeve; 505. Piston rod; 506. Pressure ball; 507. Second return spring; 508. Inlet pipe; 509. Outlet pipe; 510. Nozzle. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Embodiment 1 of the present invention: Please refer to Figures 1 to 6 As shown, an automobile exhaust pipe welding device includes a support platform 1 and a welding gun 2, and also includes: a pipe body stabilizing mechanism 3, a cleaning and adjusting mechanism 4 and a follow-up air-jet mechanism 5; The pipe body stabilizing mechanism 3 is used to perform bidirectional firm clamping of the exhaust pipe; The cleaning and adjusting mechanism 4 is used to adapt and clean the exhaust pipe; The follow-up air-jet mechanism 5 is used to spray air onto the surface of the exhaust pipe while the pipe body stabilizing mechanism 3 is operating; The tube body stabilizing mechanism 3 includes a support plate 301 fixedly connected to the top of the support platform 1, the upper end of the support plate 301 is fixedly connected to the first driving motor 302, the output end of the first driving motor 302 is fixedly connected to the first rotating shaft, and the first rotating shaft is rotatably connected to the upper end of the support plate 301, the outer surface of the end of the first rotating shaft away from the first driving motor 302 is fixedly connected to a turntable 303, the turntable 303 is rotatably connected to a circular toothed disk 307 on the side away from the support plate 301, the turntable 303 is provided with annular sliding grooves 304 equidistantly arranged on the side facing the circular toothed disk 307, a sliding post 305 is slidably connected in the sliding groove 304, the circular toothed disk 307 is provided with annular arc grooves equidistantly arranged, the sliding post 305 is slidably connected to the arc groove 308, and the sliding post 305 is fixedly connected to the arc groove 308 through the sliding connection, and the end of the sliding post 305 away from the turntable 303 is fixedly connected to the inner support plate 306; A second drive motor 309 is fixedly connected to one side of the turntable 303 away from the circular toothed disc 307. A second rotating shaft is fixedly connected to the output end of the second drive motor 309, and the second rotating shaft is rotatably connected to the turntable 303. A driving gear 310 is fixedly connected to the outer surface of one end of the second rotating shaft away from the second drive motor 309, and the driving gear 310 is meshed with the circular toothed disc 307. When the first gear 310 is engaged with the first pinion 314, the pinion 313 is engaged with the first pinion 314 and the pinion 315 is engaged with the first pinion 314. When the first gear 310 is engaged with the first pinion 314, the pinion 315 is engaged with the first pinion 314 and the pinion 315 is engaged with the first pinion 314.

[0022] The effects achieved by this embodiment are as follows: Compared with the prior art, through the provision of the pipe body stabilizing mechanism 3, during the welding process of the automobile exhaust pipe, the design of the arc groove 308, the sliding column 305 and the inner support plate 306 can closely fit the inner wall of the automobile exhaust pipe, provide uniform support force, and perform preliminary fixation of the exhaust pipe to ensure the stability of the position of the exhaust pipe before welding, thereby reducing welding errors caused by shaking or misalignment. After the exhaust pipe is initially fixed, the design of the first threaded rod 312 and the outer clamping plate 313 can further clamp the outer wall of the exhaust pipe to enhance the overall stability. Combined with the preliminary fixation of the inner support plate 306, the exhaust pipe is further stabilized, so that subsequent welding operations can be performed more accurately, thereby facilitating rapid positioning of the exhaust pipe, not only reducing the number of repeated adjustments during the welding process, but also reducing the risk of accidental movement of the exhaust pipe during welding, thereby preventing harm to workers. In addition, the stable clamping can also reduce welding defects caused by movement or deformation of the exhaust pipe during welding, such as uneven welds, pores, cracks, etc., thereby improving welding quality.

[0023] Embodiment 2 of the present invention: Please refer to Figures 1 to 6 As shown, the cleaning and adjusting mechanism 4 includes a mounting frame 401 fixedly connected to the support plate 301, and protective doors 414 are symmetrically slidably connected to the mounting frame 401, and the protective doors 414 are clamped together. Rectangular grooves 402 are symmetrically opened on both sides of the mounting frame 401, and the bottom wall of the rectangular groove 402 is slidably connected to a moving block 403, one of the moving blocks 403 is fixedly connected to a U-shaped telescopic plate 405, and a cleaning brush plate 406 is fixedly connected to the side of the U-shaped telescopic plate 405 away from the moving block 403; A second threaded rod 404 is provided between the U-shaped telescopic plate 405 and the moving block 403, and the second threaded rod 404 is rotatably connected to the U-shaped telescopic plate 405, and the second threaded rod 404 is threadedly connected to the moving block 403; A bracket 412 is slidably connected to the mounting frame 401, and the bracket 412 is fixedly connected to the welding gun 2. Operating hand plates 409 are symmetrically provided at the bottom of both ends of the bracket 412. A second telescopic rod 410 is symmetrically fixedly connected between the operating hand plates 409 and the bracket 412. A first telescopic rod 407 is symmetrically fixedly connected between the operating hand plates 409 and the moving block 403. A first return spring 408 is sleeved on the outer surface of the first telescopic rod 407. A positioning block 411 is fixedly connected to the top of the operating hand plate 409 , and positioning grooves 413 are equidistantly formed on the top wall of the rectangular groove 402 , and the positioning block 411 is engaged with one of the positioning grooves 413 .

[0024] The effects achieved by this embodiment are as follows: compared with the prior art, through the setting of the cleaning adjustment mechanism 4, after the exhaust pipe is firmly clamped, the position of the cleaning brush plate 406 can be changed by utilizing the cooperative design of the operating hand plate 409, the moving block 403 and the rectangular groove 402, so that the cleaning brush plate 406 can correspond to the position of the part to be welded, so that the cleaning brush plate 406 can be subsequently attached to the part to be welded of the exhaust pipe, and after the position of the cleaning brush plate 406 is moved, the design of the second threaded rod 404 and the U-shaped telescopic plate 405 can be used to push and attach the cleaning brush plate 406 to the outer surface of the exhaust pipe, and cooperate with the rotation movement of the exhaust pipe to pre-clean the part to be welded on the exhaust pipe to remove oil, rust and other impurities from the part to be welded of the exhaust pipe, ensure that the welding area is clean, thereby enhancing the adhesion of the solder and the density of the weld, reducing the occurrence of welding defects such as uneven welds, pores and cracks, and improving the welding quality; Among them, the clamping design of the positioning block 411 and the positioning groove 413 can ensure the stability of the operating hand plate 409 after the position is adjusted, avoid the position deviation of the operating hand plate 409 due to external force, and thus ensure the accuracy of cleaning and welding work.

[0025] Embodiment 3 of the present invention: Please refer to Figures 1 to 6As shown, the follow-up jet mechanism 5 includes an extension rod 501 that is fixedly connected to the outer surface of the turntable 303 in an annular shape and is equidistant. The end of the extension rod 501 away from the turntable 303 is fixedly connected to a squeezing ball 502. The lower end of the mounting frame 401 is symmetrically fixedly connected to the side plates 503. A sleeve 504 is fixedly connected between the side plates 503. A piston rod 505 is slidably connected to the end of the sleeve 504 facing the turntable 303. A pressure ball 506 is fixedly connected to the end of the piston rod 505 facing the turntable 303. The squeezing ball 502 is used to push the pressure ball 506. A second return spring 507 is fixedly connected between the pressure ball 506 and the sleeve 504, and the second return spring 507 is sleeved on the outside of the piston rod 505. An air inlet pipe 508 is fixedly connected vertically downward to the outer surface of one end of the sleeve 504 away from the pressurized ball 506 , and an air outlet pipe 509 is fixedly connected to the other end of the sleeve 504 away from the pressurized ball 506 . A nozzle 510 is fixedly connected to the air outlet pipe 509 .

[0026] The effects achieved by this embodiment are as follows: compared with the prior art, through the setting of the follow-up jet mechanism 5, the design of the squeezing ball 502 and the pressurized ball 506, and the elastic action of the second return spring 507, the piston rod 505 can continuously inhale or eject external air, so that in the process of using the cleaning brush plate 406 to clean the welding part on the outer surface of the exhaust pipe, the jet cleaning of the welding part is simultaneously achieved, effectively removing dust, oil and other impurities accumulated during the welding process, ensuring the cleanliness of the welding surface, reducing the generation of welding defects such as pores and slag inclusions, thereby improving the strength and density of the weld. In addition, as the welding work proceeds, the follow-up jet mechanism 5 can also cool the welding part to prevent high temperature from having an adverse effect on the quality of the weld, while protecting the operator from high temperature damage.

[0027] The complete usage steps and working principle of the above embodiment are as follows: The following is the working process of the pipe body stabilizing mechanism 3 for bidirectionally clamping the exhaust pipe: In the process of welding the automobile exhaust pipe, Figure 1 As shown, the staff can first slide the two symmetrically connected protective doors 414 out of the mounting frame 401 in the opposite direction, so that the structure between the mounting frame 401 and the protective door 414 is exposed to the staff's field of vision. Figure 2As shown, it is a structure between the protective door 414 and the mounting frame 401. At this time, the staff can place the end of the exhaust pipe between the inner support plate 306 and the outer clamping plate 313. By starting the second drive motor 309, the output end thereof can be driven to rotate on the side of the turntable 303 away from the support plate 301 through the driving gear 310 connected to the second rotating shaft. Since the side of the turntable 303 away from the support plate 301 is also rotatably connected to the circular toothed disk 307, and the circular toothed disk 307 is meshed with the driving gear 310, when the driving gear 310 rotates, the meshing between the teeth can drive the circular toothed disk 307 to rotate synchronously with the turntable 303, as shown in FIG. Figure 3 As shown, on one side of the turntable 303 facing the circular toothed disc 307, there are circumferentially equidistantly formed sliding grooves 304, in which sliding posts 305 are slidably connected. Circular toothed disc 307 is circumferentially equidistantly formed with arcuate grooves 308, and sliding posts 305 are slidably connected to the arcuate grooves 308, while one end of sliding posts 305 away from the turntable 303 is fixedly connected to the inner support plate 306. Therefore, when the driving gear 310 rotates to drive the circular toothed disc 307 to rotate on the turntable 303, the matching design of the arcuate grooves 308 can drive the sliding posts 305 to follow the moving path of the arcuate grooves 308 and slide synchronously in the sliding grooves 304, thereby moving the inner support plate 306 to fit the inner wall of the exhaust pipe, supporting the inner wall of the exhaust pipe, and preliminarily fixing the exhaust pipe. After the inner wall of the exhaust pipe is initially fixed using the inner support plate 306, Figure 2 and Figure 3 As shown, since the rotating disk 303 is fixedly provided with a mounting plate 311 in an annular shape and equidistantly at a side away from the support plate 301, and the mounting plate 311 is provided with a first threaded rod 312 through a thread, and the first threaded rod 312 is rotatably connected to the outer clamping plate 313 at one end facing the inner support plate 306, the staff can rotate the first threaded rod 312 to move the first threaded rod 312 on the mounting plate 311 toward the inner support plate 306, push the outer clamping plate 313 and fit it to the outer wall of the exhaust pipe, clamp the outer wall of the exhaust pipe, so that the exhaust pipe can be further fixed and initially fixed to the inner support plate 306. Combined with the inner support plate 306, the exhaust pipe is further stabilized to facilitate subsequent welding of the exhaust pipe. The bidirectional clamping design of the inner support plate 306 and the outer clamping plate 313 can closely fit the inner and outer walls of the exhaust pipe, providing uniform supporting force and clamping force, thereby achieving efficient and stable clamping of the exhaust pipe and ensuring the stable position of the exhaust pipe during the welding process. In addition, the design of the arc groove 308 and the sliding column 305 can flexibly adjust the position of the inner support plate 306, and the design of the first threaded rod 312 can flexibly adjust the position of the outer clamping plate 313 to adapt to exhaust pipes of different diameters, thereby achieving wide applicability. The outer plate 313 is movably connected to a side of the circular toothed disc 307 at equal intervals, and the balls are in rolling contact with the outer surface of the circular toothed disc 307. When the first threaded rod 312 rotates to drive the outer plate 313 to move, the contact design between the balls and the circular toothed disc 307 can be used to limit the axial movement direction of the outer plate 313, thereby preventing the outer plate 313 from rotating synchronously with the rotation of the first threaded rod 312. In addition, the rolling design of the balls can also roll on the circular toothed disc 307 when the circular toothed disc 307 is driven to rotate by the engagement of the driving gear 310, thereby avoiding interference with the rotational movement of the circular toothed disc 307. The number of inner support plates 306 and outer clamping plates 313 is the same, and both inner support plates 306 and outer clamping plates 313 are arranged with the axis of the circular toothed disc 307 as the axis, and the distance between the inner support plates 306 and the axis is smaller than the distance between the outer clamping plates 313 and the axis. After the welding work is completed, the worker removes the welded exhaust pipe and pushes the protective doors 414 toward each other to engage with each other and form a semi-enclosed space with the mounting frame 401, thereby protecting the structure between the mounting frame 401 and the protective doors 414. The protective door 414 provided on the mounting frame 401 can protect the structure between the mounting frame 401 and the protective door 414 when not in use, effectively preventing external dust or impurities from adhering to the outer surface thereof with the flow of air and interfering with the subsequent clamping operation of the exhaust pipe. At the same time, the protective door 414 can provide additional protection and reduce the risk of potential damage. Please refer to the above working process Figures 1 to 6 .

[0028] The following is the working process of the cleaning adjustment mechanism 4 for adapting and cleaning the exhaust pipe: After the exhaust pipe is stabilized by the inner support plate 306 and the outer clamping plate 313, Figure 4 、 Figure 5 as well as Figure 6As shown, rectangular grooves 402 are symmetrically provided on both sides of the mounting frame 401, and a moving block 403 is slidably provided on the bottom wall of the rectangular groove 402, and the top of the moving block 403 is connected to an operating hand plate 409 through a first telescopic rod 407 and a first return spring 408. A bracket 412 is slidably provided between the two sides of the mounting frame 401, and the welding gun 2 is mounted on the bracket 412. Therefore, the staff can press the operating hand plate 409 downward according to the part of the exhaust pipe that needs to be welded, driving the first telescopic rod 407 and the first return spring 408 to shrink synchronously. Since a positioning block 411 is fixedly provided on the top of the operating hand plate 409, positioning grooves 413 that are adapted to the positioning block 411 are equidistantly provided on the top wall of the rectangular groove 402, and the positioning block 411 is initially clamped in one of the positioning grooves 413, so when the operating hand plate 409 is When the plate 409 is driven to move downward, the positioning block 411 can be driven to move synchronously and withdraw from the positioning slot 413. Then, the operating hand plate 409 can be driven to move on the basis of pressing the operating hand plate 409 downward. Since the second telescopic rods 410 are symmetrically fixed between the bottom of both ends of the bracket 412 and the operating hand plate 409, the downward movement of the operating hand plate 409 can synchronously stretch the second telescopic rods 410, and under the connection action of the second telescopic rods 410, the connection between the operating hand plate 409 and the bracket 412 can be maintained, so that the operating hand plate 409 can synchronously drive the bracket 412 to slide on the mounting frame 401 while moving, and synchronously change the position of the welding gun 2, so as to adapt to the part that needs to be welded on the exhaust pipe, so that the position can correspond, thereby facilitating subsequent welding work; After the bracket 412 cooperates with the welding gun 2 to move to the position, the staff can release the downward pressure on the operating hand plate 409. Under the elastic force of the first return spring 408, the operating hand plate 409 can be pushed upward to enable the operating hand plate 409 to be reset. At the same time, the second telescopic rod 410 will also shrink and return to its initial state synchronously. The positioning block 411 provided on the operating hand plate 409 will also be stuck in the positioning groove 413 of the corresponding position under the elastic force of the first return spring 408, thereby limiting the position of the operating hand plate 409 and avoiding the position of the operating hand plate 409 to be offset due to external force during subsequent use. The coordinated use of the positioning block 411 and the positioning groove 413 ensures the stability of the operating hand plate 409 after the position is adjusted, avoids the offset caused by external force, and ensures the accuracy of cleaning and welding work. The second threaded rod 404, the U-shaped telescopic plate 405 and the cleaning brush plate 406 are all arranged on one of the moving blocks 403. In the above text, when the position of the welding gun 2 is changed by moving the operating hand plate 409, since the operating hand plate 409 and the moving block 403 are fixedly connected by the first telescopic rod 407, the position of the moving block 403 can be changed synchronously when the operating hand plate 409 moves, so that the position of the cleaning brush plate 406 can correspond to the position of the part to be welded, so that the cleaning brush plate 406 can be attached to the exhaust gas nozzle 201 in the future. The position of the cleaning brush plate 406 can be flexibly adjusted by the coordinated design of the operating hand plate 409, the movable block 403 and the rectangular groove 402 at the part of the pipe to be welded, so that it can accurately correspond to the part to be welded on the exhaust pipe. It is suitable for exhaust pipes of different specifications and sizes, which enhances the versatility and adaptability of the equipment. The staff only needs to press and move the operating hand plate 409 to achieve synchronous adjustment of the positions of the welding gun 2 and the cleaning brush plate 406. The operation process is intuitive and easy to understand, which reduces the difficulty of operation and improves work efficiency. like Figure 4 and Figure 5As shown, a U-shaped telescopic plate 405 is fixedly provided on one of the moving blocks 403, and a second threaded rod 404 is provided between the moving block 403 and the U-shaped telescopic plate 405, and the second threaded rod 404 is rotatably connected to the end of the U-shaped telescopic plate 405 close to the moving block 403, and the second threaded rod 404 is rotatably connected to the end of the U-shaped telescopic plate 405 away from the moving block 403, and the second threaded rod 404 is threadedly connected to the moving block 403. Therefore, before welding the exhaust pipe, the worker can rotate the second threaded rod 404 to rotate and move the second threaded rod 404 on the moving block 403 through the threaded connection relationship to push the U-shaped telescopic plate 405 to extend. Since a cleaning brush plate 406 is fixedly provided on the end of the U-shaped telescopic plate 405 away from the moving block 403, when the end of the U-shaped telescopic plate 405 away from the moving block 403 is extended and pushed out, it can drive the cleaning brush plate 406. The first drive motor 302 is started to drive the output end of the exhaust pipe to rotate at the upper end of the support plate 301 through the turntable 303 connected to the first rotating shaft, so that the circular toothed disc 307 can drive the exhaust pipe to rotate synchronously. The outer wall of the exhaust pipe and the cleaning brush plate 406 are in close contact with each other, and the rotation of the exhaust pipe can be used to pre-clean the part of the exhaust pipe that needs to be welded. After the cleaning work is completed, the staff can rotate the second threaded rod 404 in the opposite direction to release the contact between the cleaning brush plate 406 and the exhaust pipe, and perform subsequent welding work on the part through the welding gun 2. The contact between the cleaning brush plate 406 and the outer wall of the exhaust pipe and the rotation of the exhaust pipe can be used to quickly and comprehensively clean the part that needs to be welded, effectively remove impurities such as oil and rust, and improve the welding quality. Please refer to the above working process Figures 1 to 6 .

[0029] The following is the working process of the follow-up air injection mechanism 5 for injecting air to the exhaust pipe surface while the pipe body stabilizing mechanism 3 is in operation: In the above description, the first driving motor 302 is started to drive the turntable 303 connected to its output end to rotate on the upper end of the support plate 301 (whether during cleaning or welding). Figure 2 As shown, since the outer surface of the turntable 303 is annularly and equidistantly fixed with extension rods 501, and the outward end of the extension rod 501 (i.e., the end away from the turntable 303) is fixed with a squeezing ball 502, when the turntable 303 rotates, the extension rod 501 can cooperate with the squeezing ball 502 to synchronously follow the turntable 303 as the axis. Figure 4As shown, two side plates 503 are symmetrically arranged at the lower end of one side of the mounting frame 401, and a sleeve 504 is fixedly arranged between the two side plates 503. A piston rod 505 is slidably connected to the end of the sleeve 504 facing the turntable 303, and a pressure ball 506 is fixedly arranged at the end of the piston rod 505 away from the sleeve 504. The pressure ball 506 and the squeezing ball 502 are both configured as sliding surfaces. During the rotation of the turntable 303, the squeezing ball 502 will contact the outer surface of the pressure ball 506 in turn. The pushing effect of the squeezing ball 502 can drive the pressure ball 506 to move toward the sleeve 504. Since the pressure ball 506 is fixedly connected to the piston rod 505, and the piston rod 505 is slidably connected to the sleeve 504, when the pressure ball 506 is squeezed and pushed, the piston rod 505 can be synchronously driven to move toward the inside of the sleeve 504, pushing the air inside the sleeve 504 toward the end of the sleeve 504 away from the piston rod 505. An air outlet pipe 509 is fixedly connected to the end of the sleeve 504 away from the piston rod 505, and the other end of the air outlet pipe 509 is fixedly connected to a nozzle 510. The air pushed by the piston rod 505 will enter the air outlet pipe 509 and be ejected outward through the nozzle 510. according to Figure 4 As shown, since a second return spring 507 is fixedly provided between the sleeve 504 and the pressure ball 506, and the second return spring 507 is sleeved on the outside of the piston rod 505, when the squeezing ball 502 pushes the pressure ball 506 to move toward the sleeve 504, the second return spring 507 can be squeezed synchronously, so that the second return spring 507 is compressed. When the squeezing ball 502 continues to move and releases the contact relationship with the pressure ball 506, the thrust on the pressure ball 506 disappears, and the position of the pressure ball 506 can be restored under the elastic force of the second return spring 507. It should be noted that the outer surface of one end of the sleeve 504 facing the air outlet pipe 509 is fixed vertically downward and connected to the air inlet pipe 508, and a filter plate is provided at the end of the air inlet pipe 508 away from the sleeve 504, a one-way air inlet valve is provided between the air inlet pipe 508 and the sleeve 504, and a one-way air outlet valve is provided between the sleeve 504 and the air outlet pipe 509, that is, when the squeezing ball 502 releases the contact relationship with the pressure ball 506, the elastic force of the second return spring 507 will cause the piston rod 505 to move away from the sleeve 504, and the external air will be drawn into the interior of the sleeve 504 through the air inlet pipe 508, and when the squeezing ball 502 squeezes and pushes the pressure ball 506, the piston rod 505 will move toward the sleeve 504 The air drawn into the sleeve 504 is discharged through the air outlet pipe 509. As the turntable 303 continues to rotate, the squeezing ball 502 will squeeze and push the pressurized ball 506 in turn. Cooperating with the elastic force of the second return spring 507, the piston rod 505 can continuously inhale or eject external air. The air outlet pipe 509 is configured as a curved pipe, and the nozzle 510 is directed toward the exhaust pipe. In the process of continuous air ejection, the welding part on the outer surface of the exhaust pipe can be cleaned by using the cleaning brush plate 406, and the dust on the welding part can be further removed. In addition, the welding part on the outer surface of the exhaust pipe can be cooled by air jet during welding, thereby improving the welding effect. Please refer to the above working process Figures 1 to 6 .

[0030] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automobile exhaust pipe welding device, comprising a support platform (1) and a welding gun (2), characterized in that: It also includes: a tube body stabilizing mechanism (3), a cleaning and adjusting mechanism (4) and a follow-up jetting mechanism (5); The pipe body stabilizing mechanism (3) is used to perform bidirectional stabilizing clamping on the exhaust pipe; The cleaning and adjusting mechanism (4) is used to perform adaptive cleaning on the exhaust pipe; The follow-up jet injection mechanism (5) is used to inject air to the surface of the exhaust pipe while the pipe body stabilizing mechanism (3) is operating.

2. The automobile exhaust pipe welding equipment according to claim 1, characterized in that: The tube body stabilizing mechanism (3) comprises a support plate (301) fixedly connected to the top of the support platform (1); a first drive motor (302) is fixedly connected to the upper end of the support plate (301); a rotating disk (303) is fixedly connected to the output end of the first drive motor (302); a circular toothed disk (307) is rotatably connected to the side of the rotating disk (303) away from the support plate (301); a side of the rotating disk (303) facing the circular toothed disk (307) is provided with annular sliding grooves (304) at equal intervals; a sliding column (305) is slidably connected in the sliding groove (304); an arc groove (308) is equidistantly provided on the circular toothed disk (307); the sliding column (305) is slidably connected to the arc groove (308); the sliding column (305) penetrates and is slidably connected to the arc groove (308); and an end of the sliding column (305) away from the rotating disk (303) is fixedly connected to an inner support plate (306).

3. The automobile exhaust pipe welding equipment according to claim 2, characterized in that: A second drive motor (309) is fixedly connected to a side of the rotating disk (303) away from the circular toothed disk (307), a driving gear (310) is fixedly connected to an output end of the second drive motor (309), and the driving gear (310) is meshingly connected to the circular toothed disk (307).

4. The automobile exhaust pipe welding equipment according to claim 3, characterized in that: A mounting plate (311) is fixedly connected in an annular manner and equidistantly to one side of the rotating disk (303) facing the circular toothed disk (307); a first threaded rod (312) is threadedly connected to the mounting plate (311); and an outer clamping plate (313) is rotatably connected to one end of the first threaded rod (312) facing the inner support plate (306).

5. The automobile exhaust pipe welding equipment according to claim 2, characterized in that: The cleaning and adjusting mechanism (4) comprises a mounting frame (401) fixedly connected to the support plate (301); protective doors (414) are symmetrically slidably connected to the mounting frame (401), and the protective doors (414) are clamped together; rectangular grooves (402) are symmetrically provided on both sides of the mounting frame (401); moving blocks (403) are slidably connected to the inner bottom walls of the rectangular grooves (402); a U-shaped telescopic plate (405) is fixedly connected to one of the moving blocks (403); and a cleaning brush plate (406) is fixedly connected to the side of the U-shaped telescopic plate (405) away from the moving block (403).

6. The automobile exhaust pipe welding equipment according to claim 5, characterized in that: A second threaded rod (404) is provided between the U-shaped telescopic plate (405) and the moving block (403), and the second threaded rod (404) is rotatably connected to the U-shaped telescopic plate (405), and the second threaded rod (404) is threadably connected to the moving block (403).

7. The automobile exhaust pipe welding equipment according to claim 5, characterized in that: A bracket (412) is slidably connected to the mounting frame (401), and the bracket (412) is fixedly connected to the welding gun (2); operating hand plates (409) are symmetrically arranged at the bottom of both ends of the bracket (412); a second telescopic rod (410) is symmetrically fixedly connected between the operating hand plate (409) and the bracket (412); a first telescopic rod (407) is symmetrically fixedly connected between the operating hand plate (409) and the moving block (403); and a first return spring (408) is sleeved on the outer surface of the first telescopic rod (407).

8. The automobile exhaust pipe welding equipment according to claim 7, characterized in that: A positioning block (411) is fixedly connected to the top of the operating hand plate (409), positioning grooves (413) are equidistantly formed on the inner top wall of the rectangular groove (402), and the positioning block (411) is snap-fitted to one of the positioning grooves (413).

9. The automobile exhaust pipe welding equipment according to claim 5, characterized in that: The follow-up jet mechanism (5) comprises an extension rod (501) annularly equidistantly fixedly connected to the outer surface of the rotating disk (303); an end of the extension rod (501) away from the rotating disk (303) is fixedly connected to a squeezing ball (502); a lower end of the mounting frame (401) is symmetrically fixedly connected to a side plate (503); a sleeve (504) is fixedly connected between the side plates (503); an end of the sleeve (504) facing the rotating disk (303) is penetrated by a piston rod (505) for sliding connection; an end of the piston rod (505) facing the rotating disk (303) is fixedly connected to a pressure ball (506); the squeezing ball (502) is used to push the pressure ball (506); a second return spring (507) is fixedly connected between the pressure ball (506) and the sleeve (504); and the second return spring (507) is sleeved on the outside of the piston rod (505).

10. The automobile exhaust pipe welding equipment according to claim 9, characterized in that: An air inlet pipe (508) is fixedly connected to the outer surface of one end of the sleeve (504) away from the pressure ball (506) vertically downward, and an air outlet pipe (509) is fixedly connected to the outer surface of one end of the sleeve (504) away from the pressure ball (506). A nozzle (510) is fixedly connected to the air outlet pipe (509).

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