Welding device for exhaust pipe with multi-angle adjustment function

Abstract

The application discloses a welding device with multi-angle adjusting function for exhaust pipe and relates to the field of exhaust pipe welding. The device comprises a bottom plate, a plurality of supporting rods fixedly installed on the bottom plate, and a base fixedly installed on the supporting rods. The opening angle adjusting motor can adjust the angle of the third pipe clamp, fix the two ends of the bent exhaust pipe, and adjust according to the bending angle of the pipe. After the position of the exhaust pipe at the bottom is aligned with the welding head, the second pipe clamp is used for fixation. By starting the lifting motor, the two exhaust pipes are in contact or close to each other. After alignment, the push hydraulic cylinder is started to make the welding head close to the exhaust pipe. Then, the control motor and the welding machine are started to make the welding head rotate around the exhaust pipe for welding. By adjusting the angle of the limiting plate to be perpendicular, the horizontal position of the third pipe clamp is adjusted by starting the position adjusting motor. The position of the third pipe clamp is staggered with that of the first pipe clamp. Therefore, the straight-angle bent pipe can be fixed and welded.

Description

Technical Field

[0001] This invention relates to the field of exhaust pipe welding technology, and in particular to a welding device for exhaust pipes with multi-angle adjustment function. Background Technology

[0002] The exhaust pipe is part of the engine exhaust system, mainly consisting of the front exhaust pipe and the rear exhaust pipe.

[0003] In the existing technology, in order to ensure the stability of exhaust pipe welding, it is usually necessary to clamp both ends of the exhaust pipe, then operate the exhaust pipe to rotate and use a welding machine to align and weld the welding point. However, some parts of the exhaust pipe are bent at a certain angle, and the clamp can only clamp and fix one end, or the bent pipe needs to be handheld for welding, which will affect the stability of the exhaust pipe during welding. Therefore, a welding device for exhaust pipes with multi-angle adjustment function is needed to meet people's needs. Summary of the Invention

[0004] The purpose of this invention is to provide a welding device for exhaust pipes with multi-angle adjustment function, so as to solve the problem mentioned in the background art that the exhaust pipe is partially bent at a certain angle, the clamp can only clamp and fix one end, or the bending pipe needs to be handheld for welding, which affects the stability of the exhaust pipe during welding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device for exhaust pipes with multi-angle adjustment function, comprising a base plate, on which multiple support rods are fixedly mounted, a base is fixedly mounted on the support rods, a rotating ring is rotatably mounted on the inner wall of the base, multiple connecting plates are fixedly mounted on the bottom side of the rotating ring, rollers are rotatably mounted on the connecting plates, the rollers are movably mounted on the inner wall of the base, multiple fixed support rods are fixedly mounted on the base, a fixed frame is fixedly mounted on the top side of the fixed support rods, a mounting frame is fixedly mounted on the fixed frame, and two first fixed plates are fixedly mounted on the mounting frame, with one side of each of the two first fixed plates fixedly mounted... There is a first hydraulic cylinder. The output ends of the two first hydraulic cylinders pass through two first fixed plates and are fixedly installed with first pipe clamps. The mounting bracket has a first connecting hole. Two connecting seats are fixedly installed on the top side of the base plate. The same positive and negative threaded rod is rotatably installed on the two connecting seats. A lifting motor is fixedly installed on one side of the corresponding connecting seat. The output end of the lifting motor is fixedly installed on the positive and negative threaded rod. Two threaded sliders are symmetrically threaded on the positive and negative threaded rod. Both threaded sliders are slidably installed on the base plate. Linkage support rods are rotatably installed on both sides of the two threaded sliders. The same mounting platform is symmetrically rotatably installed on the four linkage support rods. A linkage support plate is movably mounted on the mounting platform, and the linkage support plate is movably mounted on the rotating ring. Two push hydraulic cylinders are symmetrically fixedly mounted on the linkage support plate. The output ends of the two push hydraulic cylinders are fixedly mounted with the same welding machine, which is slidably mounted on the linkage support plate. The welding machine is equipped with a welding head. Two second fixing plates are fixedly mounted on the mounting platform, and a second hydraulic cylinder is fixedly mounted on one side of each of the two second fixing plates. The output ends of the two second hydraulic cylinders pass through the two second fixing plates respectively and are fixedly mounted with second pipe clamps. A second connecting hole is opened on the mounting platform, and the second connecting hole corresponds to the first connecting hole. Two... Each of the two semicircular frames has an arc-shaped slider movably mounted on it. Each arc-shaped slider has a mounting block fixedly mounted on it. A single limit frame is fixedly mounted on each of the two arc-shaped sliders. A single adjusting screw is rotatably mounted on each of the two mounting blocks. The adjusting screw is rotatably mounted on the limit frame. A connecting block is slidably mounted on the limit frame. The connecting block is threaded onto the adjusting screw. A mounting plate is fixedly mounted on the bottom side of the connecting block. Two third fixing plates are fixedly mounted on the bottom side of the mounting plate. A third hydraulic cylinder is fixedly mounted on each of the two third fixing plates. The output ends of the two third hydraulic cylinders pass through the two third fixing plates and are fixedly mounted with third pipe clamps.

[0006] Preferably, two limiting plates are rotatably mounted on the fixed frame, and the two limiting plates are movably mounted on two mounting blocks respectively. The same connecting shaft is rotatably mounted on the two limiting plates, and an adjusting gear is fixedly mounted on each of the two connecting shafts. Semicircular racks are fixedly mounted on each of the two semicircular frames, and the two adjusting gears mesh with the two semicircular racks respectively. An angle adjusting motor and a position adjusting motor are fixedly mounted on the two limiting plates respectively. The output end of the angle adjusting motor is fixedly mounted on the connecting shaft, and the output end of the position adjusting motor is fixedly mounted on the adjusting screw.

[0007] Preferably, the fixing frame has two rotating holes, and a rotating shaft is rotatably installed in each of the two rotating holes. The two rotating shafts are respectively fixedly installed on the side of the two limiting plates that are close to each other.

[0008] Preferably, the semi-circular frame has an arc-shaped groove, and the arc-shaped slider is movably installed in the arc-shaped groove.

[0009] Preferably, the connecting block has two horizontal sliding grooves, and the limiting frame is slidably installed in the two horizontal sliding grooves.

[0010] Preferably, a linkage gear ring is fixedly installed on the rotating ring, a control motor is fixedly installed on the base, and a linkage gear is fixedly installed at the output end of the control motor, the linkage gear meshing with the linkage gear ring.

[0011] Preferably, the inner wall of the base is provided with a limiting groove, and the roller is movably installed in the limiting groove.

[0012] Preferably, the inner wall of the base is provided with an annular limiting groove, and an annular limiting plate is rotatably installed in the annular limiting groove, and the annular limiting plate is fixedly installed on the rotating ring.

[0013] Preferably, the linkage support plate is provided with a positioning groove, and a positioning plate is fixedly installed on the rotating ring, with the positioning plate slidably installed in the positioning groove.

[0014] Preferably, the linkage support plate is provided with an annular guide groove, an annular guide plate is movably installed in the annular guide groove, and the annular guide plate is fixedly installed on the mounting platform.

[0015] The beneficial effects of this invention are:

[0016] In this invention, by setting up structures such as the first pipe clamp and the third pipe clamp, when welding the exhaust pipe, the top exhaust pipe can be fixed first using the first and third pipe clamps. After aligning the bottom exhaust pipe with the welding head, it is fixed with the second pipe clamp. By turning on the lifting motor, the height of the bottom exhaust pipe and the welding head can be adjusted to bring them closer to the top exhaust pipe. After final alignment, the push hydraulic cylinder is activated to bring the welding head closer to the exhaust pipe. Then, by turning on the control motor and the welding machine, the welding head can rotate around the exhaust pipe to perform the welding operation. Furthermore, by turning on the angle adjustment motor, the angle of the third pipe clamp can be adjusted, which can fix both ends of the curved exhaust pipe. (See reference...) Figure 2 The exhaust pipe is designed to allow for welding of curved exhaust pipes and can be adjusted according to the bending angle of the pipe.

[0017] In this invention, by adjusting the position of the motor, during the welding operation of the exhaust pipe of the right-angle bend, reference is made. Figure 3 For the middle pipe, first adjust the angle of the limiting plate to make it vertical. Then, adjust the motor in the open position to adjust the horizontal position of the third pipe clamp so that the position of the third pipe clamp is offset from that of the first pipe clamp. This can be adjusted according to the horizontal length of the pipe. After that, fix both ends of the exhaust pipe of the right-angle bend to the first pipe clamp and the third pipe clamp respectively, and then you can carry out the welding operation. The pipe is more stable during the welding process.

[0018] In this invention, by setting up a lifting motor, when the length of the welding pipe of the top curved exhaust pipe cannot reach the bottom pipe, the height of the bottom exhaust pipe can be adjusted by turning on the lifting motor, so that the upper and lower exhaust pipes can be brought closer together for welding, and the welding machine and welding head will also move accordingly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention;

[0020] Figure 2 This is a schematic diagram of a bend connection structure of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention.

[0021] Figure 3 This is a schematic diagram of a right-angle bend connection structure of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the limiting plate portion of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention;

[0023] Figure 5This is a schematic diagram of the third pipe clamp portion of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention.

[0024] Figure 6 This is a schematic diagram of the semi-circular frame portion of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention.

[0025] Figure 7 This is a schematic diagram of the mounting platform portion of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention.

[0026] Figure 8 This is a schematic diagram of the rotating ring portion of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention;

[0027] Figure 9 This is a schematic diagram of the base portion of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention;

[0028] Figure 10 This is a cross-sectional structural diagram of the base portion of a welding device for an exhaust pipe with multi-angle adjustment function proposed in this invention.

[0029] Figure 11 This is a schematic diagram of the linkage support plate portion of a welding device for exhaust pipes with multi-angle adjustment function proposed in this invention.

[0030] In the diagram: 100, base plate; 101, support rod; 102, base; 200, rotating ring; 201, connecting plate; 202, roller; 203, limiting groove; 204, linkage gear ring; 205, control motor; 206, linkage gear; 207, fixed support rod; 208, fixed frame; 209, mounting frame; 210, first fixed plate; 211, first hydraulic cylinder; 212, first pipe clamp; 213, first connecting hole; 214, annular limiting groove; 215, annular limiting plate; 300, connecting seat; 301, positive and negative threaded rod; 302, lifting motor; 303, threaded slider; 304, linkage support rod; 305, mounting platform; 306, pushing hydraulic cylinder; 307, welding machine; 308, welding head; 309, second fixed... 310. Fixed plate; 311. Second hydraulic cylinder; 312. Second pipe clamp; 313. Positioning plate; 314. Positioning groove; 315. Second connecting hole; 316. Linkage support plate; 317. Annular guide groove; 400. Annular guide plate; 401. Semi-circular frame; 402. Arc-shaped slider; 403. Mounting block; 404. Limiting frame; 405. Adjusting screw; 406. Connecting block; 407. Mounting plate; 408. Third fixed plate; 409. Third hydraulic cylinder; 410. Third pipe clamp; 412. Limiting plate; 413. Connecting shaft; 414. Adjusting gear; 415. Semi-circular rack; 416. Angle adjustment motor; 417. Rotating hole; 418. Rotating shaft; 419. Position adjustment motor; 410. Arc-shaped groove; 411. Horizontal slide groove. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1-11A welding device for exhaust pipes with multi-angle adjustment function includes a base plate 100, on which multiple support rods 101 are fixedly installed. A base 102 is fixedly installed on the support rods 101. A rotating ring 200 is rotatably installed on the inner wall of the base 102. Multiple connecting plates 201 are fixedly installed on the bottom side of the rotating ring 200. Rollers 202 are rotatably installed on the connecting plates 201 and movably installed on the inner wall of the base 102. Multiple fixed support rods 207 are fixedly installed on the base 102. A fixing frame 208 is fixedly installed on the top side of the fixed support rods 207. A mounting frame 209 is fixedly installed on the fixing frame 208. Two first fixing plates 210 are fixedly installed on the mounting frame 209. One side of the two first fixing plates 210... Each of the two first hydraulic cylinders 211 is fixedly installed. The output ends of the two first hydraulic cylinders 211 pass through the two first fixed plates 210 respectively and are fixedly installed with first pipe clamps 212. The mounting bracket 209 has a first connecting hole 213. Two connecting seats 300 are fixedly installed on the top side of the base plate 100. The same positive and negative threaded rod 301 is rotatably installed on the two connecting seats 300. A lifting motor 302 is fixedly installed on one side of the corresponding connecting seat 300. The output end of the lifting motor 302 is fixedly installed on the positive and negative threaded rod 301. Two threaded sliders 303 are symmetrically threaded on the positive and negative threaded rod 301. Both threaded sliders 303 are slidably installed on the base plate 100. Both sides of the two threaded sliders 303 are rotatably installed with linkage supports. The rod 304 has four linkage support rods 304 symmetrically rotatably mounted on the same mounting platform 305. A linkage support plate 315 is movably mounted on the mounting platform 305 and movably mounted on the rotating ring 200. Two push hydraulic cylinders 306 are symmetrically fixedly mounted on the linkage support plate 315. A welding machine 307 is fixedly mounted on the output end of the two push hydraulic cylinders 306. The welding machine 307 is slidably mounted on the linkage support plate 315 and has a welding head 308. Two second fixing plates 309 are fixedly mounted on the mounting platform 305. A second hydraulic cylinder 310 is fixedly mounted on one side of each of the two second fixing plates 309. The output ends of the two second hydraulic cylinders 310 pass through the two second fixing plates 309 and are fixedly mounted with... The second pipe clamp 311 has a second connecting hole 314 on the mounting platform 305, which corresponds to the first connecting hole 213. Two semi-circular frames 400 are fixedly mounted on the fixing bracket 208. An arc-shaped slider 401 is movably mounted on each of the two semi-circular frames 400. An mounting block 402 is fixedly mounted on each of the two arc-shaped sliders 401. A common limiting frame 403 is fixedly mounted on each of the two arc-shaped sliders 401. A common adjusting screw 404 is rotatably mounted on each of the two mounting blocks 402. The adjusting screw 404 is rotatably mounted on the limiting frame 403. A connecting block 405 is slidably mounted on the limiting frame 403. The connecting block 405 is threaded onto the adjusting screw 404. A mounting plate 406 is fixedly mounted on the bottom side of the connecting block 405.Two third fixing plates 407 are fixedly installed on the bottom side of the mounting plate 406. A third hydraulic cylinder 408 is fixedly installed on each of the two third fixing plates 407. The output ends of the two third hydraulic cylinders 408 pass through the two third fixing plates 407 and are fixedly installed with third pipe clamps 409. During operation, the two first hydraulic cylinders 211, two second hydraulic cylinders 310, and two third hydraulic cylinders 408 are activated respectively. The output ends of the first hydraulic cylinders 211, two second hydraulic cylinders 310, and three third hydraulic cylinders 408 will respectively drive the first pipe clamps 212, two second pipe clamps 311, and three third pipe clamps 409 to move away from each other. Then, the exhaust pipe to be welded is inserted between the two second pipe clamps 311. The height is adjusted so that the welding point is aligned with the welding head 308. By activating the push hydraulic cylinder 306, the welding machine 307 and the welding head 308 are moved closer to the welding position of the exhaust pipe. The second hydraulic cylinder 310 is driven to bring the two second pipe clamps 311 closer to clamp the exhaust pipe straight pipe. Another exhaust pipe straight pipe is inserted between the two first pipe clamps 212 and the two third pipe clamps 409. The two first hydraulic cylinders 211 and the third hydraulic cylinder 408 are then driven to clamp the other exhaust pipe straight pipe. At this point, the two exhaust pipe straight pipes are in a straight line and their centers are aligned. The height of the bottom exhaust pipe straight pipe can be adjusted according to the distance between the two exhaust pipe straight pipes, ultimately bringing them into contact and alignment for welding. Welding machine 307 and welding head 308 can be activated. Welding machine 307 and welding head 308 are existing technologies. Their working principle is that after the welding head 308 aligns with the welding position on the pipe, an electric welding rod is brought into contact with the pipe and ignited using an electric arc to generate a high-temperature electric arc for welding. During welding, control motor 205 can be activated, allowing welding head 308 to follow and perform welding operations around the exhaust pipe.

[0033] Furthermore, two limiting plates 410 are rotatably mounted on the fixed frame 208. The two limiting plates 410 are movably mounted on the two mounting blocks 402 respectively. The same connecting shaft 411 is rotatably mounted on the two limiting plates 410. Adjusting gears 412 are fixedly mounted on both connecting shafts 411. Semicircular racks 413 are fixedly mounted on both semicircular frames 400. The two adjusting gears 412 mesh with the two semicircular racks 413 respectively. An angle adjusting motor 414 and a position adjusting motor 417 are fixedly mounted on the two limiting plates 410 respectively. The output end of the angle adjusting motor 414 is fixedly mounted on the connecting shaft 411, and the output end of the position adjusting motor 417 is fixedly mounted on the adjusting screw 404. The output end of the angle adjusting motor 414 will drive the connecting shaft 411 to rotate, thereby causing the rotating connecting shaft 411 to drive the two adjusting gears 412 to rotate. While the adjusting gears 412 are rotating, they will move in an arc around the semicircular racks 413 through meshing with them.

[0034] Furthermore, the fixing frame 208 has two rotating holes 415, and a rotating shaft 416 is rotatably installed in each of the two rotating holes 415. The two rotating shafts 416 are respectively fixedly installed on the side of the two limiting plates 410 that are close to each other. When the adjusting gear 412 moves, it will drive the limiting plate 410 to move through the connecting shaft 411, so that the limiting plate 410 drives the rotating shaft 416 to rotate in the rotating hole 415, so that the limiting plate 410 can achieve the effect of flipping.

[0035] Furthermore, an arc-shaped groove 418 is provided on the semi-circular frame 400, and an arc-shaped slider 401 is movably installed in the arc-shaped groove 418. The mounting block 402 will drive the arc-shaped slider 401 to move in the arc-shaped groove 418 on the semi-circular frame 400, thereby restricting the movement trajectory of the arc-shaped slider 401.

[0036] Furthermore, the connecting block 405 has two horizontal slide grooves 419, and the limiting frame 403 is slidably installed in the two horizontal slide grooves 419. The horizontally moving connecting block 405 will slide on the limiting frame 403 through the two horizontal slide grooves 419, thereby restricting the movement direction of the connecting block 405.

[0037] Furthermore, a linkage gear ring 204 is fixedly installed on the rotating ring 200, and a control motor 205 is fixedly installed on the base 102. A linkage gear 206 is fixedly installed at the output end of the control motor 205. The linkage gear 206 meshes with the linkage gear ring 204. When the linkage gear 206 rotates, it will drive the rotating ring 200 to rotate through meshing with the linkage gear ring 204.

[0038] Furthermore, a limiting groove 203 is provided on the inner wall of the base 102, and the roller 202 is movably installed in the limiting groove 203. The moving connecting plate 201 drives the roller 202 to roll in the limiting groove 203.

[0039] Furthermore, an annular limiting groove 214 is provided on the inner wall of the base 102, and an annular limiting plate 215 is rotatably installed in the annular limiting groove 214. The annular limiting plate 215 is fixedly installed on the rotating ring 200. When the rotating ring 200 rotates, it will drive the annular limiting plate 215 to rotate in the annular limiting groove 214, thereby preventing the rotating ring 200 from detaching from the base 102.

[0040] Furthermore, a positioning groove 313 is provided on the linkage support plate 315, and a positioning plate 312 is fixedly installed on the rotating ring 200. The positioning plate 312 is slidably installed in the positioning groove 313. The rotating ring 200 will drive the linkage support plate 315 to rotate through the cooperation of the positioning plate 312 and the positioning groove 313. The upward moving linkage support plate 315 slides on the positioning plate 312 through the positioning groove 313, thereby restricting the movement direction of the linkage support plate 315.

[0041] Furthermore, an annular guide groove 316 is provided on the linkage support plate 315, and an annular guide plate 317 is movably installed in the annular guide groove 316. The annular guide plate 317 is fixedly installed on the mounting platform 305. The rotating linkage support plate 315 will move on the annular guide plate 317 through the annular guide groove 316, thereby enabling the linkage support plate 315 to rotate around the exhaust pipe.

[0042] Working principle of this invention:

[0043] During operation, two first hydraulic cylinders 211, two second hydraulic cylinders 310, and two third hydraulic cylinders 408 are activated respectively. The output ends of the first hydraulic cylinders 211, 310, and 408 will drive the first pipe clamps 212, 311, and 409 to move, causing adjacent first pipe clamps 212, 311, and 409 to move away from each other. Then, the exhaust pipe to be welded is inserted between the two second pipe clamps 311, and the height is adjusted so that the welding point is aligned with the welding head 308. Activating the push hydraulic cylinder 306 pushes the welding machine 307 and the welding head 308 to move, bringing the welding head 308 closer to the exhaust pipe welding position. The second hydraulic cylinder 310 is driven to bring the two second pipe clamps 311 closer to clamp the exhaust pipe straight pipe. Another exhaust pipe straight pipe is inserted between the two first pipe clamps 212 and the two third pipe clamps 409. The two first hydraulic cylinders 211 and the third hydraulic cylinder 408 are then driven to clamp the other exhaust pipe straight pipe between the two first pipe clamps 212 and the two third pipe clamps 409. At this point, the two exhaust pipe straight pipes are in a straight line and their centers are aligned. The height of the bottom exhaust pipe straight pipe can be adjusted according to the distance between the two exhaust pipe straight pipes. The lifting motor 302 can be activated. The output end of the lifting motor 302 will drive the positive and negative threaded rods 301 to rotate on the two connecting seats 300. Simultaneously, the rotation of the positive and negative threaded rods 301 will drive the two... The threaded sliders 303 move closer together, causing each of the two close-to-each threaded sliders 303 to drive one end of each of the four linkage rods 304 to rotate and move. This causes the other ends of the four linkage rods 304 to rotate on the mounting platform 305 and push the mounting platform 305 upward. As the mounting platform 305 moves upward, it also drives the linkage support plate 315 upward through its interaction with the annular guide plate 317. The upward-moving linkage support plate 315 slides on the positioning plate 312 through the positioning groove 313, thus restricting the direction of movement of the linkage support plate 315. This allows the linkage support plate 315 to move upward with the mounting platform 305. The continuously upward-moving linkage support plate 315 then drives the welding machine 307 and the welding head 308 upward. The rising mounting platform 305 moves the welding machine 307, welding head 308, and second fixing plate 309, causing the second fixing plate 309 to move the second hydraulic cylinder 310, second pipe clamp 311, and the bottom exhaust pipe straight pipe, bringing them closer to the top exhaust pipe straight pipe. Finally, the two exhaust pipe straight pipes contact and align for welding. The welding machine 307 and welding head 308 are existing technologies. Their working principle is that after the welding head 308 aligns with the welding position on the pipe, an electric welding rod is brought into contact with the pipe and ignited using an electric arc to generate a high-temperature arc welding. The control motor 205 can be activated during the welding process.The output of the control motor 205 drives the linkage gear 206 to rotate. Simultaneously, the linkage gear 206 meshes with the linkage ring 204, causing the rotating ring 200 to rotate. The rotating ring 200 moves the connecting plate 201, causing the roller 202 to roll within the limiting groove 203, thus making the rotation of the rotating ring 200 smoother. Simultaneously, the rotating ring 200 drives the annular limiting plate 215 to rotate within the annular limiting groove 214, preventing the rotating ring 200 from detaching from the base 102. The continuously rotating ring 200, through the cooperation of the positioning plate 312 and the positioning groove 313, drives the linkage support plate 315 to rotate. The rotating linkage support plate 315 then moves on the annular guide plate 317 via the annular guide groove 316, allowing the linkage support plate 315 to rotate around the exhaust pipe. This allows the welding head 308 to follow and perform welding operations around the exhaust pipe. For welding curved exhaust pipes, refer to [reference needed]. Figure 2 The exhaust pipe can be adjusted by opening an angle adjustment motor 414 according to its bending angle. The output of the angle adjustment motor 414 drives the connecting shaft 411 to rotate, which in turn drives two adjusting gears 412 to rotate. As the adjusting gears 412 rotate, they mesh with a semi-circular rack 413 and move in an arc around it. This movement of the adjusting gears 412, via the connecting shaft 411, causes the limiting plate 410 to move, which in turn drives the rotating shaft 416 to rotate within the rotating hole 415, allowing the limiting plate 410 to flip. During this flipping process, the mounting block... The moving mounting block 402 causes the arc-shaped slider 401 to move within the arc-shaped groove 418 on the semi-circular frame 400, thus restricting the movement trajectory of the arc-shaped slider 401. The continuously moving arc-shaped slider 401 then causes the limiting frame 403 to move, which in turn causes the connecting block 405, mounting plate 406, and third pipe clamp 409 to move, thereby changing the angle of the third pipe clamp 409. Afterwards, the end of the bent exhaust pipe to be welded can be passed through the two first pipe clamps 212 for clamping, and the other end can be passed between the two third pipe clamps 409 with adjusted angles for clamping and fixing. When welding a right-angle bend, refer to... Figure 3To weld the exhaust pipe, first adjust the angle of the limiting plate 410 to make it vertical. Then, turn on the position adjustment motor 417. The output of the position adjustment motor 417 will drive the adjusting screw 404 to rotate. Since the adjusting screw 404 and the connecting block 405 are threaded, the adjusting screw 404 will drive the connecting block 405 to move horizontally when it rotates. The horizontally moving connecting block 405 will slide on the limiting frame 403 through the two horizontal sliding grooves 419, thereby restricting the movement direction of the connecting block 405. The continuously moving connecting block 405 will drive the mounting plate 406 and the third pipe clamp 409 to move, so that the positions of the two third pipe clamps 409 and the two first pipe clamps 212 are staggered. Then, the end of the right-angle bend that needs to be welded is passed through the two first pipe clamps 212 for clamping, and the other end is passed through the two third pipe clamps 409 that have been adjusted to be clamped and fixed, thereby realizing the welding of different exhaust pipes.

[0044] 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 welding device for exhaust pipes with multi-angle adjustment function, comprising a base plate (100), characterized in that: Multiple support rods (101) are fixedly installed on the base plate (100). A base (102) is fixedly installed on the support rods (101). A rotating ring (200) is rotatably installed on the inner wall of the base (102). Multiple connecting plates (201) are fixedly installed on the bottom side of the rotating ring (200). Rollers (202) are rotatably installed on the connecting plates (201). The rollers (202) are movably installed on the inner wall of the base (102). Multiple fixed support rods (207) are fixedly installed on the base (102). A fixed frame (208) is fixedly installed on the top side of the fixed support rods (207). An mounting frame (209) is fixedly installed on the fixed frame (208). Two first fixed supports (209) are fixedly installed on the mounting frame (209). A fixed plate (210) is provided. A first hydraulic cylinder (211) is fixedly installed on one side of each of the two first fixed plates (210). The output ends of the two first hydraulic cylinders (211) pass through the two first fixed plates (210) respectively and are fixedly installed with first pipe clamps (212). A first connecting hole (213) is provided on the mounting bracket (209). Two connecting seats (300) are fixedly installed on the top side of the base plate (100). The same positive and negative threaded rod (301) is rotatably installed on the two connecting seats (300). A lifting motor (302) is fixedly installed on one side of a corresponding connecting seat (300). The output end of the lifting motor (302) is fixedly installed on the positive and negative threaded rod (301). Two threaded sliders (303) are symmetrically threaded on the base plate (100). Both threaded sliders (303) are slidably mounted on the base plate (100). A linkage support rod (304) is rotatably mounted on each side of the two threaded sliders (303). A mounting platform (305) is symmetrically rotatably mounted on the four linkage support rods (304). A linkage support plate (315) is movably mounted on the mounting platform (305). The linkage support plate (315) is movably mounted on the rotating ring (200). A positioning groove (313) is provided on the linkage support plate (315). A positioning plate (312) is fixedly mounted on the rotating ring (200). The positioning plate (312) is slidably mounted in the positioning groove (313). The rotating ring (200) will... The linkage support plate (315) rotates through the cooperation of the positioning plate (312) and the positioning groove (313). The upward-moving linkage support plate (315) slides on the positioning plate (312) through the positioning groove (313). Two push hydraulic cylinders (306) are symmetrically fixedly installed on the linkage support plate (315). The output end of the two push hydraulic cylinders (306) is fixedly installed with the same welding machine (307). The welding machine (307) is slidably installed on the linkage support plate (315). The welding machine (307) is provided with a welding head (308). Two second fixing plates (309) are fixedly installed on the mounting platform (305). A second hydraulic cylinder (310) is fixedly installed on one side of each of the two second fixing plates (309).The output ends of the two second hydraulic cylinders (310) pass through the two second fixed plates (309) respectively and are fixedly installed with second pipe clamps (311). A second connecting hole (314) is opened on the mounting platform (305), which corresponds to the first connecting hole (213). Two semi-circular frames (400) are fixedly installed on the fixed frame (208). An arc-shaped slider (401) is movably installed on each of the two semi-circular frames (400). An arc-shaped groove (418) is opened on the semi-circular frame (400), and the arc-shaped slider (401) is movably installed in the arc-shaped groove (418). An mounting block (402) is fixedly installed on each of the two arc-shaped sliders (401). A limiting frame (403) has two mounting blocks (402) on which the same adjusting screw (404) is rotatably mounted. The adjusting screw (404) is rotatably mounted on the limiting frame (403). A connecting block (405) is slidably mounted on the limiting frame (403). The connecting block (405) is threaded onto the adjusting screw (404). A mounting plate (406) is fixedly mounted on the bottom side of the connecting block (405). Two third fixing plates (407) are fixedly mounted on the bottom side of the mounting plate (406). A third hydraulic cylinder (408) is fixedly mounted on each of the two third fixing plates (407). The output ends of the two third hydraulic cylinders (408) pass through the two third fixing plates (407) respectively and are fixedly mounted with third pipe clamps (409).

2. The welding device for exhaust pipes with multi-angle adjustment function according to claim 1, characterized in that: Two limiting plates (410) are rotatably mounted on the fixed frame (208). The two limiting plates (410) are movably mounted on two mounting blocks (402). The same connecting shaft (411) is rotatably mounted on the two limiting plates (410). Adjusting gears (412) are fixedly mounted on both connecting shafts (411). Semicircular racks (413) are fixedly mounted on both semicircular frames (400). The two adjusting gears (412) mesh with the two semicircular racks (413) respectively. An angle adjusting motor (414) and a position adjusting motor (417) are fixedly mounted on the two limiting plates (410). The output end of the angle adjusting motor (414) is fixedly mounted on the connecting shaft (411), and the output end of the position adjusting motor (417) is fixedly mounted on the adjusting screw (404).

3. The welding device for exhaust pipes with multi-angle adjustment function according to claim 2, characterized in that: The fixing frame (208) has two rotating holes (415), and a rotating shaft (416) is rotatably installed in each of the two rotating holes (415). The two rotating shafts (416) are respectively fixedly installed on the side of the two limiting plates (410) that are close to each other.

4. The welding device for exhaust pipes with multi-angle adjustment function according to claim 1, characterized in that: The connecting block (405) has two horizontal slide grooves (419), and the limiting frame (403) is slidably installed in the two horizontal slide grooves (419).

5. The welding device for exhaust pipes with multi-angle adjustment function according to claim 1, characterized in that: A linkage gear ring (204) is fixedly installed on the rotating ring (200), and a control motor (205) is fixedly installed on the base (102). A linkage gear (206) is fixedly installed at the output end of the control motor (205), and the linkage gear (206) meshes with the linkage gear ring (204).

6. The welding device for exhaust pipes with multi-angle adjustment function according to claim 1, characterized in that: The inner wall of the base (102) is provided with a limiting groove (203), and the roller (202) is movably installed in the limiting groove (203).

7. The welding device for exhaust pipes with multi-angle adjustment function according to claim 1, characterized in that: The inner wall of the base (102) is provided with an annular limiting groove (214), and an annular limiting plate (215) is rotatably installed in the annular limiting groove (214). The annular limiting plate (215) is fixedly installed on the rotating ring (200).

8. The welding device for exhaust pipes with multi-angle adjustment function according to claim 1, characterized in that: The linkage support plate (315) is provided with an annular guide groove (316), and an annular guide plate (317) is movably installed in the annular guide groove (316). The annular guide plate (317) is fixedly installed on the mounting platform (305).

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