Expansion joint welding processing device

Abstract

The invention discloses an expansion joint welding processing device, which relates to the technical field of expansion joint welding, and comprises a base, a bracket is installed on the top of the base, a lifting device is arranged on the top of the bracket, the lifting device comprises a threaded rod, a threaded cylinder, and a transmission motor, the threaded rod is rotatably installed on the inner wall of the bracket, the threaded cylinder is threadedly connected with the threaded rod, the transmission motor is fixedly installed on the top of the bracket, a slide groove is opened on the top of the base, a transmission device is arranged in the slide groove, a welding gun is installed on the left side of the base, a clamping device is arranged at the bottom of the bracket, a grinding device is arranged at the front of the bracket, a cleaning device is arranged in the slide groove opened on the top of the base, and the T-shaped rod is pushed to move upward by squeezing the pipeline through the No. 2 U-shaped plate to close the lifting device and stop moving, so that the pipe wall will not be damaged due to excessive clamping force when clamping.

Description

Technical Field

[0001] The invention relates to the technical field of expansion joint welding, in particular to an expansion joint welding processing device. Background Art

[0002] Expansion joint welding is the precise docking and welding of the expansion joint to the pipeline, which can help control the welding quality and joint strength, and ensure the stability and durability of the system.

[0003] The patent with patent announcement number CN219852915U relates to the technical field of expansion joint welding, a movable slide groove is provided in the middle of the limit slide, a limit slider is inserted into the movable slide groove, an expansion joint limit mold is installed on the top of the limit slider, a first limit groove is provided on the left side of the middle top block of the expansion joint, a second limit cavity is provided on the right side of the middle top block of the expansion joint, an electric telescopic rod is installed on the left end of the movable slide groove, and a piston rod is installed on the output end of the electric telescopic rod. The staff installs the expansion joint limit mold on the top of the limit slider, and after installation, the materials of the expansion joint are placed in the expansion joint limit mold respectively. When movement is required during the welding process, the electric telescopic rod is started to push the piston rod, the connecting plate and the limit slider to move along the movable slide groove on the limit slide, and the expansion joint is welded during the movement. The structure is relatively simple, and mobile welding can be performed during use.

[0004] In the above patent, when movement is required during the welding process, the electric telescopic rod is activated to push the piston rod, the connecting plate and the limit slider to move along the movable slide groove on the limit slide, and the expansion joint is welded during the movement. However, failure to clamp and fix the pipeline during the welding process may cause the pipeline to be out of the welding position during the welding process, which may cause danger. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an expansion joint welding processing device, which solves the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: an expansion joint welding processing device includes a base, a bracket is installed on the top of the base, a lifting device is arranged on the top of the bracket, the lifting device includes a threaded rod, a threaded barrel, and a transmission motor, the threaded rod is rotatably installed on the inner wall of the bracket, the threaded barrel is threadedly connected with the threaded rod, the transmission motor is fixedly installed on the top of the bracket, a slide groove is opened on the top of the base, a transmission device is arranged in the slide groove, a welding gun is installed on the left side of the base, a clamping device is arranged at the bottom of the bracket, a grinding device is arranged at the front of the bracket, and a cleaning device is arranged in the slide groove opened on the top of the base;

[0007] Wherein, the clamping device includes a No. 1 U-shaped plate, a T-shaped rod, a No. 2 U-shaped plate, a rotating wheel, a No. 1 spring, a transmission shaft, a hydraulic pressure device and an arc plate. The No. 1 U-shaped plate is slidably installed at the bottom of the bracket, the T-shaped rod slides through the top of the bracket, the No. 2 U-shaped plate is fixedly installed at the bottom of the T-shaped rod, the rotating wheel is rotatably installed on the inner wall of the No. 1 U-shaped plate, the transmission shaft is rotatably installed on the top of the transmission device, the hydraulic pressure device is fixedly installed on the circumferential surface of the transmission shaft, and the arc plate is fixedly installed on the top of the hydraulic pressure device. The No. 2 U-shaped plate squeezes the pipeline to push the T-shaped rod to move upward, so that the lifting device is closed and stops moving, so that the pipe wall will not be damaged due to excessive clamping force when clamping.

[0008] According to the above technical solution, the clamping device also includes a gas tank, a cross bar and a nozzle. The gas tank is fixedly installed at the bottom of the bracket, the cross bar is rotatably installed on the side of the gas tank close to the threaded barrel, and the nozzle is fixedly installed on the side of the gas tank close to the No. 1 U-shaped plate. A No. 1 spring is provided between the No. 1 U-shaped plate and the No. 2 U-shaped plate. When the lifting device descends, the cross bar is pressed down to activate the jet device to blow off impurities remaining on the clamping table, thereby preventing impurities from affecting the secondary clamping.

[0009] According to the above technical solution, the grinding device includes a fixed ring, a motor, a transmission wheel, a swivel, a fixed block and a T-shaped plate. The fixed ring is fixedly installed on the side of the bracket close to the welding gun, the motor is fixedly installed on the circumferential surface of the fixed ring, the transmission wheel is rotatably installed at the output end of the motor, the swivel is rotatably installed inside the fixed ring, the fixed block is fixedly installed on the circumferential surface of the swivel, and the T-shaped plate is slidably installed on the side of the fixed block close to the No. 1 U-shaped plate. The swivel is driven to rotate by the transmission wheel so that the T-shaped plate continuously grinds the pipe mouth before starting welding to make it smooth and easier to weld successfully.

[0010] According to the above technical scheme, the grinding device also includes a push ring, an L-shaped push block, a hydraulic cylinder and a pressure rod. The push ring is slidably installed on the side of the fixed ring close to the T-shaped plate. The hydraulic cylinder includes a No. 1 hydraulic cylinder and a No. 2 hydraulic cylinder. The No. 1 hydraulic cylinder is fixedly installed on the inner wall of the bracket, and the No. 2 hydraulic cylinder is fixedly installed on the side of the motor close to the No. 1 hydraulic cylinder. The pressure rod is slidably installed inside the hydraulic cylinder, and the L-shaped push block is slidably installed on the side of the hydraulic cylinder close to the push ring. The contact surface between the push ring and the L-shaped push block is set as an inclined surface, and the contact surface between the push ring and the T-shaped plate is set as an inclined surface. The pressure rod is pressed by the descending of the lifting device to make the No. 1 hydraulic cylinder push the No. 2 hydraulic cylinder, and the No. 2 hydraulic cylinder pushes the L-shaped push block. The L-shaped push block pushes the push ring out so that the T-shaped plate moves upward away from the pipe mouth part, so that the T-shaped plate will not affect the upcoming welding work.

[0011] According to the above technical solution, the cleaning device includes a slider, a push rod, a No. 1 rack, a gear, a No. 2 rack, a rotating rod and a push plate. The slider is slidably installed in a slide groove opened on the top of the base, the push rod is rotatably installed on the side of the slider away from the bracket, the No. 1 rack is slidably installed on the end of the push rod away from the slider, the gear is rotatably installed on the end of the No. 1 rack away from the push rod, the No. 2 rack is slidably installed on the side of the gear away from the slider, the rotating rod is rotatably installed on the end of the No. 2 rack away from the gear, and the push plate is slidably installed on the end of the rotating rod away from the No. 2 rack, and the slider is squeezed to push the push rod backward to drive the No. 1 rack to move, and the No. 1 rack causes the gear to rotate to drive the No. 2 rack to push the rotating rod to push the push plate out, and the push plate is pushed out to clean the welding slag on the base.

[0012] According to the above technical solution, the cleaning device also includes a protrusion and a vibrating block, the protrusion is fixedly mounted on the top of the rotating rod, the vibrating block is fixedly mounted on the top of the push plate, a No. 2 spring is arranged between the slider and the inside of the slide groove, the No. 1 rack is meshed with the gear, and the No. 2 rack is meshed with the gear. When the protrusion installed on the top of the rotating rod and the vibrating block installed on the top of the base move, the two blocks contact each other to generate vibration, and the welding slag on the inner wall of the base is vibrated off to facilitate cleaning.

[0013] The present invention provides an expansion joint welding processing device. It has the following beneficial effects:

[0014] (1) This invention uses the second U-shaped plate to squeeze the pipe and push the T-shaped rod upward to close the lifting device and stop it from moving, so that the pipe wall will not be damaged due to excessive clamping force when clamping; when the lifting device descends, the cross bar is pressed down to start the jet device to blow off the impurities remaining on the clamping table, thereby preventing the impurities from affecting the secondary clamping.

[0015] (2) The invention uses a transmission wheel to drive the rotating ring to rotate so that the T-shaped plate can continuously grind the pipe mouth to make it smooth before welding, making it easier to weld successfully; the pressure rod is pressed down by the lifting device to make the No. 1 hydraulic cylinder push the No. 2 hydraulic cylinder, and the No. 2 hydraulic cylinder pushes the L-shaped push block, and the L-shaped push block pushes the push ring to move the T-shaped plate upward and away from the pipe mouth, so that the T-shaped plate will not affect the upcoming welding work.

[0016] (3) In the present invention, the slider is squeezed to push the push rod backwards to drive the No. 1 rack to move, and the No. 1 rack causes the gear to rotate to drive the No. 2 rack to push the rotating rod to push the push plate out, and the push plate is pushed out to clean the welding slag on the base; when the protrusion installed on the top of the rotating rod moves with the vibration block installed on the top of the base, the two blocks contact each other and generate vibration to shake off the welding slag on the inner wall of the base for easy cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the clamping device of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the grinding device of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the cleaning device of the present invention;

[0021] Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle;

[0022] Figure 6 For the present invention Figure 3 A magnified schematic diagram of the structure B in the middle;

[0023] Figure 7 For the present invention Figure 4 A magnified schematic diagram of the C structure;

[0024] Figure 8 For the present invention Figure 4 A magnified schematic diagram of the D structure.

[0025] In the figure: 1, base; 101, bracket; 102, transmission device; 103, welding gun; 2, No. 1 U-shaped plate; 201, T-shaped rod; 202, No. 2 U-shaped plate; 203, rotating wheel; 204, No. 1 spring; 205, transmission shaft; 206, hydraulic pressure; 207, curved plate; 208, gas tank; 209, cross bar; 210, nozzle; 3, fixing ring; 301, motor; 302 , transmission wheel; 303, swivel; 304, fixed block; 305, T-shaped plate; 306, push ring; 307, L-shaped push block; 308, hydraulic cylinder; 309, pressure rod; 401, slider; 402, push rod; 403, No. 2 spring; 404, No. 1 rack; 405, gear; 406, No. 2 rack; 407, swivel rod; 408, push plate; 409, bump; 410, vibration block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 7, one embodiment of the present invention is: an expansion joint welding processing device includes a base 1, a bracket 101 is installed on the top of the base 1, a lifting device is arranged on the top of the bracket 101, the lifting device includes a threaded rod, a threaded cylinder, and a transmission motor, the threaded rod is rotatably installed on the inner wall of the bracket 101, the threaded cylinder is threadedly connected with the threaded rod, the transmission motor is fixedly installed on the top of the bracket 101, a slide groove is opened on the top of the base 1, a transmission device 102 is arranged in the slide groove, a welding gun 103 is installed on the left side of the base 1, a clamping device is arranged at the bottom of the bracket 101, a grinding device is arranged at the front of the bracket 101, and a cleaning device is arranged in the slide groove opened on the top of the base 1;

[0028] Among them, the clamping device includes a No. 1 U-shaped plate 2, a T-shaped rod 201, a No. 2 U-shaped plate 202, a rotating wheel 203, a No. 1 spring 204, a transmission shaft 205, a hydraulic pressure device 206 and an arc plate 207. The No. 1 U-shaped plate 2 is slidably installed at the bottom of the bracket 101, the T-shaped rod 201 slides through the top of the bracket 101, the No. 2 U-shaped plate 202 is fixedly installed at the bottom of the T-shaped rod 201, the rotating wheel 203 is rotatably installed on the inner wall of the No. 1 U-shaped plate 2, the transmission shaft 205 is rotatably installed on the top of the transmission device 102, the hydraulic pressure device 206 is fixedly installed on the circumferential surface of the transmission shaft 205, and the arc plate 207 is fixedly installed on the top of the hydraulic pressure device 206. The No. 2 U-shaped plate 202 squeezes the pipeline to push the T-shaped rod 201 to move upward, so that the lifting device is closed and stops moving, so that the pipe wall will not be damaged due to excessive clamping force when clamping.

[0029] The clamping device also includes a gas tank 208, a cross bar 209 and a nozzle 210. The gas tank 208 is fixedly installed at the bottom of the bracket 101, the cross bar 209 is rotatably installed on the side of the gas tank 208 close to the threaded tube, and the nozzle 210 is fixedly installed on the side of the gas tank 208 close to the No. 1 U-shaped plate 2. A No. 1 spring 204 is provided between the No. 1 U-shaped plate 2 and the No. 2 U-shaped plate 202. When the lifting device descends, the cross bar 209 is pressed down to start the jet device to blow off the impurities remaining on the clamping table to prevent the impurities from affecting the secondary clamping.

[0030] The grinding device includes a fixed ring 3, a motor 301, a transmission wheel 302, a swivel 303, a fixed block 304 and a T-shaped plate 305. The fixed ring 3 is fixedly installed on a side of the bracket 101 close to the welding gun 103, the motor 301 is fixedly installed on the circumferential surface of the fixed ring 3, the transmission wheel 302 is rotatably installed at the output end of the motor 301, the swivel 303 is rotatably installed inside the fixed ring 3, the fixed block 304 is fixedly installed on the circumferential surface of the swivel 303, and the T-shaped plate 305 is slidably installed on a side of the fixed block 304 close to the No. 1 U-shaped plate 2. The swivel 303 is driven to rotate by the transmission wheel 302 so that the T-shaped plate 305 continuously grinds the pipe mouth before starting welding to make it smooth and easier to weld successfully.

[0031] The grinding device also includes a push ring 306, an L-shaped push block 307, a hydraulic cylinder 308 and a pressure rod 309. The push ring 306 is slidably mounted on the side of the fixed ring 3 close to the T-shaped plate 305. The hydraulic cylinder 308 includes a No. 1 hydraulic cylinder and a No. 2 hydraulic cylinder. The No. 1 hydraulic cylinder is fixedly mounted on the inner wall of the bracket 101, and the No. 2 hydraulic cylinder is fixedly mounted on the side of the motor 301 close to the No. 1 hydraulic cylinder. The pressure rod 309 is slidably mounted inside the hydraulic cylinder 308, and the L-shaped push block 307 is slidably mounted on the hydraulic cylinder 3 08 On the side close to the push ring 306, the contact surface between the push ring 306 and the L-shaped push block 307 is set as an inclined surface, and the contact surface between the push ring 306 and the T-shaped plate 305 is set as an inclined surface. The pressure rod 309 is pressed downward by the lifting device to make the No. 1 hydraulic cylinder push the No. 2 hydraulic cylinder, and the No. 2 hydraulic cylinder pushes the L-shaped push block 307. The L-shaped push block 307 pushes the push ring 306 out so that the T-shaped plate 305 moves upward away from the pipe mouth part, which makes the T-shaped plate 305 not affect the upcoming welding work.

[0032] The cleaning device includes a slider 401, a push rod 402, a first rack 404, a gear 405, a second rack 406, a rotating rod 407 and a push plate 408. The slider 401 is slidably mounted in a slide groove opened on the top of the base 1, the push rod 402 is rotatably mounted on the side of the slider 401 away from the bracket 101, the first rack 404 is slidably mounted on the end of the push rod 402 away from the slider 401, the gear 405 is rotatably mounted on the end of the first rack 404 away from the push rod 402, and the second rack 406 is slidably mounted on the side of the slider 401 away from the bracket 101. Installed on the side of gear 405 away from slider 401, rotating rod 407 is rotatably installed on the end of No. 2 rack 406 away from gear 405, and push plate 408 is slidably installed on the end of rotating rod 407 away from No. 2 rack 406. The slider 401 is squeezed to push the push rod 402 backward to drive the No. 1 rack 404 to move. The No. 1 rack 404 makes the gear 405 rotate to drive the No. 2 rack 406 to push the rotating rod 407 to push the push plate 408 out. The push plate 408 is pushed out to clean the welding slag on the base 1.

[0033] The cleaning device also includes a protrusion 409 and a vibration block 410. The protrusion 409 is fixedly installed on the top of the rotating rod 407, and the vibration block 410 is fixedly installed on the top of the push plate 408. A No. 2 spring 403 is arranged between the slider 401 and the inside of the slide groove. The No. 1 rack 404 is meshed with the gear 405, and the No. 2 rack 406 is meshed with the gear 405. When the protrusion 409 installed on the top of the rotating rod 407 and the vibration block 410 installed on the top of the base move, the two blocks contact each other to generate vibration, and the welding slag on the inner wall of the base 1 is shaken off for easy cleaning.

[0034] During operation: place the pipe to which the expansion joint needs to be welded on the clamping table, start the lifting device, the threaded rod rotates to drive the threaded barrel to move downward, the threaded barrel moves downward to drive the No. 1 U-shaped plate 2 to move downward, the No. 1 U-shaped plate 2 moves downward to drive the No. 2 U-shaped plate 202 to move downward, the No. 2 U-shaped plate 202 moves downward to touch the cross bar 209, start the switch of the gas tank 208 to make the nozzle 210 start to spray, the No. 2 U-shaped plate 202 moves downward until it touches the outer wall of the pipe, the No. 2 U-shaped plate 202 stops moving downward, and the No. 2 U-shaped plate 202 touches the outer wall of the pipe to release the limit of the T-shaped rod 201, and after the limit of the T-shaped rod 201 is released, it moves upward to the top to touch the lifting device switch to close the lifting device.

[0035] Start the transmission device 102 to move the arc plate 207 to the tail end of the pipe, then start the hydraulic press 206 to expand the arc plate 207 to clamp the inner wall of the pipe, start the motor 301 to rotate the transmission wheel 302, the rotation of the transmission wheel 302 drives the swivel 303 to rotate, the rotation of the swivel 303 drives the T-shaped plate 305 on the fixed block 304 to rotate, and during the downward movement of the lifting device, the pressure rod 309 is pressed to push the liquid in the No. 1 hydraulic cylinder to flow to the No. 2 hydraulic cylinder to move the L-shaped push block 307, the movement of the L-shaped push block 307 drives the push ring 306 to move, and the movement of the push ring 306 drives the T-shaped plate 305 to move upward, and start the welding gun 103 to start welding.

[0036] After welding is completed, the movable platform of the arc plate 207 moves backward and pushes the slider 401 to move backward. The slider 401 moves backward and pushes the push rod 402 to move. The push rod 402 moves and pushes the No. 1 rack 404 to move. The movement of the No. 1 rack 404 drives the gear 405 to rotate. The rotation of the gear 405 drives the No. 2 rack 406 to move. The movement of the No. 2 rack 406 drives the rotating rod 407 to rotate. The rotation of the rotating rod 407 drives the push plate 408 to move. The rotation of the rotating rod 407 drives the protrusion 409 to move.

[0037] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An expansion joint welding processing device, comprising a base (1), characterized in that: A bracket (101) is installed on the top of the base (1), and a lifting device is arranged on the top of the bracket (101), the lifting device comprises a threaded rod, a threaded barrel, and a transmission motor, the threaded rod is rotatably installed on the inner wall of the bracket (101), the threaded barrel is threadedly connected to the threaded rod, the transmission motor is fixedly installed on the top of the bracket (101), a slide groove is opened on the top of the base (1), and a transmission device (102) is arranged in the slide groove, a welding gun (103) is installed on the left side of the base (1), a clamping device is arranged at the bottom of the bracket (101), a grinding device is arranged at the front of the bracket (101), and a cleaning device is arranged in the slide groove opened on the top of the base (1); The clamping device comprises a No. 1 U-shaped plate (2), a T-shaped rod (201), a No. 2 U-shaped plate (202), a rotating wheel (203), a No. 1 spring (204), a transmission shaft (205), a hydraulic device (206) and an arc-shaped plate (207); the No. 1 U-shaped plate (2) is slidably mounted on the bottom of the bracket (101); the T-shaped rod (201) slides through the top of the bracket (101); the No. 2 U-shaped plate (202) is fixedly mounted on the bottom of the T-shaped rod (201); the rotating wheel (203) is rotatably mounted on the inner wall of the No. 1 U-shaped plate (2); the transmission shaft (205) is rotatably mounted on the top of the transmission device (102); the hydraulic device (206) is fixedly mounted on the circumferential surface of the transmission shaft (205); and the arc-shaped plate (207) is fixedly mounted on the top of the hydraulic device (206); The cleaning device comprises a slider (401), a push rod (402), a first rack (404), a gear (405), a second rack (406), a rotating rod (407) and a push plate (408), wherein the slider (401) is slidably mounted in a slide groove provided at the top of the base (1), the push rod (402) is rotatably mounted on a side of the slider (401) away from the bracket (101), the first rack (404) is slidably mounted on an end of the push rod (402) away from the slider (401), and the gear (405) is rotatably mounted on an end of the push rod (402) away from the slider (401). 5) is rotatably mounted on one end of the No. 1 rack (404) away from the push rod (402), the No. 2 rack (406) is slidably mounted on one side of the gear (405) away from the slider (401), the rotating rod (407) is rotatably mounted on one end of the No. 2 rack (406) away from the gear (405), and the push plate (408) is slidably mounted on one end of the rotating rod (407) away from the No. 2 rack (406). After welding is completed, the moving platform of the arc plate (207) moves backward to push the slider (401) to move backward.

2. The expansion joint welding processing device according to claim 1, characterized in that: The clamping device further comprises a gas tank (208), a cross bar (209) and a nozzle (210); the gas tank (208) is fixedly mounted on the bottom of the bracket (101); the cross bar (209) is rotatably mounted on a side of the gas tank (208) close to the threaded barrel; the nozzle (210) is fixedly mounted on a side of the gas tank (208) close to the first U-shaped plate (2); and a first spring (204) is provided between the first U-shaped plate (2) and the second U-shaped plate (202).

3. The expansion joint welding processing device according to claim 2 is characterized in that: The grinding device comprises a fixed ring (3), a motor (301), a transmission wheel (302), a rotating ring (303), a fixed block (304) and a T-shaped plate (305); the fixed ring (3) is fixedly mounted on a side of the bracket (101) close to the welding gun (103); the motor (301) is fixedly mounted on the circumferential surface of the fixed ring (3); the transmission wheel (302) is rotatably mounted on the output end of the motor (301); the rotating ring (303) is rotatably mounted inside the fixed ring (3); the fixed block (304) is fixedly mounted on the circumferential surface of the rotating ring (303); and the T-shaped plate (305) is slidably mounted on a side of the fixed block (304) close to the first U-shaped plate (2).

4. The expansion joint welding processing device according to claim 3 is characterized in that: The grinding device also includes a push ring (306), an L-shaped push block (307), a hydraulic cylinder (308) and a pressure rod (309), wherein the push ring (306) is slidably mounted on a side of the fixed ring (3) close to the T-shaped plate (305), the hydraulic cylinder (308) includes a No. 1 hydraulic cylinder and a No. 2 hydraulic cylinder, the No. 1 hydraulic cylinder is fixedly mounted on an inner wall of the bracket (101), the No. 2 hydraulic cylinder is fixedly mounted on a side of the motor (301) close to the No. 1 hydraulic cylinder, the pressure rod (309) is slidably mounted inside the hydraulic cylinder (308), and the L-shaped push block (307) is slidably mounted on a side of the hydraulic cylinder (308) close to the push ring (306).

5. The expansion joint welding processing device according to claim 4, characterized in that: The contact surface between the push ring (306) and the L-shaped push block (307) is set as an inclined surface, and the contact surface between the push ring (306) and the T-shaped plate (305) is set as an inclined surface.

6. The expansion joint welding processing device according to claim 5, characterized in that: The cleaning device further comprises a protrusion (409) and a vibration block (410), wherein the protrusion (409) is fixedly mounted on the top of the rotating rod (407), and the vibration block (410) is fixedly mounted on the top of the pushing plate (408).

7. The expansion joint welding processing device according to claim 6, characterized in that: A second spring (403) is provided between the slider (401) and the interior of the slide groove, the first rack (404) is meshed with the gear (405), and the second rack (406) is meshed with the gear (405).

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