Pipeline welding device

Abstract

The present invention relates to the technical field of pipeline welding, and in particular to a pipeline welding device, including a moving block, a motor, a limit block, a limit groove, an elastic telescopic rod, a vibration block, a spring, a rack, and a first gear. The motor is fixedly connected to the moving block, the roller is fixedly connected to the motor shaft and is tightly attached to the inner wall of the welding ring, and the first gear is fixedly connected to the motor shaft. The elastic telescopic rod is arranged in the limit groove and is slidably connected to the limit block. The vibration block is arranged on one side of the welding head of the welding gun and is fixedly connected to one end of the elastic telescopic rod away from the welding ring. One end of the spring is fixedly connected to the side of the elastic telescopic rod, and the other end is fixedly connected to the moving block. The rack is fixedly connected to the elastic telescopic rod and meshes with the gear. The rotating gear pushes the rack to move in the direction of the elastic telescopic rod, and the rack pushes the vibration block to move in the direction of the weld through the elastic telescopic rod. The vibration block hits the gap, so that the weld is expanded to a certain extent, eliminating some welding residual stress.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, and in particular to a pipeline welding device. Background Art

[0002] Metal pipe refers to a steel with a hollow section whose length is much greater than its diameter or circumference. According to the cross-sectional shape, it can be divided into round, square, rectangular and special-shaped metal pipes; according to the material, it can be divided into carbon structural steel metal pipes, low alloy structural steel metal pipes, alloy steel metal pipes and composite metal pipes; according to the purpose, it can be divided into metal pipes for pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, it can be divided into seamless metal pipes and welded metal pipes, among which seamless metal pipes are divided into hot-rolled and cold-rolled (drawn) types, and welded metal pipes are divided into straight seam welded metal pipes and spiral seam welded metal pipes.

[0003] Metal pipes are not only used to transport fluids and powdered solids, exchange heat, and manufacture mechanical parts and containers, but they are also an economical steel material. Using metal pipes to manufacture building structure grids, pillars and mechanical supports can reduce weight, save 20-40% of metal, and realize factory-based mechanized construction. Using metal pipes to manufacture highway bridges can not only save steel and simplify construction, but also greatly reduce the area of ​​protective coating, saving investment and maintenance costs.

[0004] When welding metal pipe joints, current metal pipe welding devices mostly require manpower to perform circumferential welding along the metal pipe connection gap, which is rather troublesome. In addition, most of the welds need to be manually knocked after welding to eliminate the stress generated during welding, further wasting manpower. Summary of the invention

[0005] The invention aims to solve the technical problem of how to automatically perform girth welding on a metal pipe and eliminate welding stress, and provides a pipe welding device.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A pipeline welding device includes a bracket, a controller, a welding ring, a T-shaped ring groove, a T-shaped slider, a moving block, a welding gun, a motor, a roller, a limit block, a limit groove, an elastic telescopic rod, a vibration block, a spring, a rack, a first gear, an L-shaped rod, a torsion spring, a slag removal wheel, and a plurality of first teeth. The bracket is arranged on the ground. The welding ring axis is arranged horizontally, and the welding ring is arranged in the middle of the bracket and fixedly connected to the bracket. The T-shaped ring groove is arranged on the inner side wall of the welding ring. The T-shaped slider is arranged in the T-shaped ring groove and is slidably connected to the welding ring, and one end of the T-shaped slider extends to the outside of the T-shaped ring groove. The moving block is arranged at one end of the T-shaped slider on the outside of the T-shaped ring groove and is fixedly connected to the T-shaped slider. The welding gun is arranged in the welding ring and is fixedly connected to the moving block, and the welding head of the welding gun is arranged near the welding ring axis. The motor shaft axis is parallel to the welding ring axis, and the motor is arranged on one side of the moving block and is fixedly connected to the moving block. The motor is arranged near the welding ring and the welding gun. The axis of the roller coincides with the axis of the motor shaft. The roller is arranged at one side of the motor and is fixedly connected to the motor shaft and is in close contact with the inner wall of the welding ring. The limit block is arranged at one side of the motor shaft and is fixedly connected to the moving block. The limit groove is arranged on the limit block. The axis of the elastic telescopic rod is perpendicular to the axis of the welding ring and perpendicular to the side section of the welding ring. The elastic telescopic rod is arranged in the limit groove and is slidably connected to the limit block. The sliding direction of the elastic telescopic rod coincides with its axis, and the two ends of the elastic telescopic rod extend to the outside of the limit groove respectively. The vibration block is arranged at one side of the welding head of the welding gun and is fixedly connected to the end of the elastic telescopic rod away from the welding ring. The first gear is provided with one-third of the teeth, the axis of the first gear coincides with the axis of the motor shaft, the first gear is arranged between the roller and the motor, and is fixedly connected to the motor shaft. The rack is parallel to the axis of the elastic telescopic rod, the rack is arranged at the end of the elastic telescopic rod away from the vibration block, and is fixedly connected to the elastic telescopic rod and meshes with the gear. The spring is arranged at one end of the elastic telescopic rod close to the vibration block, one end of which is fixedly connected to the side of the elastic telescopic rod, and the other end is fixedly connected to the moving block. The L-shaped rod is arranged below the limit block, one end of which is rotatably connected to the moving block, and the other end is on the side of the moving block away from the welding gun. The rotation axis of the L-shaped rod is parallel to the axis of the welding ring. The L-shaped rod is arranged away from the welding gun and is arranged close to the elastic telescopic rod. The torsion spring is arranged at the connection between the L-shaped rod and the limit block, and its two ends are respectively fixedly connected to the L-shaped rod and the moving block. The axis of the slag removal wheel is parallel to the axis of the welding ring. The slag removal wheel is arranged at one end of the L-shaped rod away from the moving block and is rotatably connected to the L-shaped rod. The rotation axis of the slag removal wheel coincides with its axis. A plurality of first teeth are respectively arranged on the circumferential side of the slag removal wheel and are respectively fixedly connected to the slag removal wheel, and a plurality of first teeth are arranged at intervals. The controller is arranged on one side of the bracket and is fixedly connected to the bracket, and is respectively electrically connected to the motor and the welding gun.

[0008] According to the above technical solution, when it is necessary to weld the metal pipe, first, align the two sections of metal pipe and place them on the bracket, and make the two sections of metal pipe butt at the corresponding position of the welding head of the welding gun, the slag removal wheel is lifted by the metal pipe, the L-shaped rod rotates, and the torsion spring is compressed. The welding gun is controlled by the controller to start the welding gun to weld the two sections of metal pipes, and the motor is controlled by the controller to start the motor, the motor drives the roller to rotate, the roller rotates along the inner wall of the welding ring, the roller drives the moving block to move with it, and the moving block drives the welding gun, the limit block, and the L-shaped rod to move respectively. The limit block drives the rack and the vibration block to move respectively through the elastic compression rod, and the moving welding gun performs ring welding on the metal pipe. The motor drives the gear to rotate. When the rotating gear teeth contact the rack, the gear pushes the rack to move toward the elastic telescopic rod. The rack pushes the vibration block to move toward the weld through the elastic telescopic rod. The vibration block hits the gap and the telescopic rod is compressed. When the rotating gear teeth are separated from the rack, the telescopic rod recovers, the spring recovers and drives the vibration block and the rack to move away from the metal pipe through the telescopic rod. The above process is repeated to timely tap the welded weld, so that the weld can expand to a certain extent and eliminate some welding residual stress. The moving L-shaped rod drives the slag removal wheel to move. Since the slag removal wheel is in close contact with the weld at this time, the slag removal wheel rotates and drives a number of first teeth to rotate. The rotating slag removal wheel separates the welding slag attached to the weld from the weld through a number of first teeth, which effectively improves the neatness of the weld.

[0009] Preferably, it comprises a plurality of elastic metal wires, which are respectively arranged on the peripheral side of the slag removal wheel and are respectively fixedly connected to the slag removal wheel, and the plurality of elastic metal wires are arranged at intervals.

[0010] According to the above technical solution, the rotating slag removal wheel drives a plurality of elastic metal wires to rotate, and the rotating plurality of elastic metal wires clean the welding slag on the weld, thereby further improving the neatness of the weld.

[0011] Preferably, a rubber ring is included. The rubber ring is arranged on the peripheral side of the roller and is fixedly connected to the roller.

[0012] According to the above technical solution, the friction between the roller and the welding ring is effectively improved by setting the rubber ring, making the operation of the welding device more stable.

[0013] Preferably, it comprises a plurality of second teeth, which are respectively arranged outside the rubber ring and fixedly connected to the rubber ring, and are arranged at intervals, and are all made of rubber material.

[0014] According to the above technical solution, the friction between the roller and the welding ring is further improved by providing a plurality of second teeth.

[0015] Preferably, it comprises a first blowing pipe, an airbag, a piston tank, a piston cover, a first one-way valve, and a second one-way valve. The axis of the piston tank is parallel to the rack, the piston tank is arranged between the rack and the welding ring, and is fixedly connected to the moving block, and the opening is arranged downward. The first one-way valve is arranged at the end of the piston tank away from the rack, and is communicated with and fixedly connected to the piston tank. The second one-way valve is arranged at the end of the piston tank away from the rack, and is communicated with and fixedly connected to the piston tank. The axis of the piston cover coincides with the axis of the piston tank, the piston cover is arranged in the piston tank, and is slidably connected to the piston tank, and the side away from the first one-way valve is fixedly connected to the rack. The airbag is arranged on one side of the piston tank, and is fixedly connected to the piston tank to which it belongs, and is connected to the second one-way valve through a hose. The axis of the first blowing pipe is parallel to the axis of the piston tank, the first blowing pipe is arranged between the moving block and the slag removal wheel, and is fixedly connected to the moving block, and the end away from the slag removal wheel is connected to the airbag through a hose.

[0016] According to the above technical solution, the reciprocating rack drives the piston cover to follow its reciprocating movement. When the piston cover moves away from the first one-way valve, the piston cover sucks air into the piston tank through the first one-way valve. When the piston cover moves closer to the first one-way valve, the piston cover compresses the air into the airbag for storage through the second one-way valve. The gas in the airbag is stably blown toward the weld through the first blowing pipe, and the weld is cooled in time, which effectively facilitates the subsequent processing of the welding pipeline.

[0017] Preferably, it comprises a plurality of third teeth, which are respectively arranged at one end of the vibration block away from the moving block, and are respectively fixedly connected to the vibration block, and the plurality of third teeth are arranged at intervals.

[0018] According to the above technical solution, by setting a plurality of third teeth, the vibration block can separate the attached welding slag from the weld in advance while knocking the weld, thereby improving the cleaning efficiency of the welding slag.

[0019] Preferably, it comprises a support rod and a magnetic plate. The axis of the support rod is perpendicular to the axis of the first blowing pipe and the axis of the welding ring respectively. The support rod is arranged on the side of the first blowing pipe away from the moving block and is fixedly connected to the first blowing pipe. The support rod is above the slag removal wheel. The magnetic plate is obliquely arranged at one end of the support rod away from the first blowing pipe and is fixedly connected to the support rod. The magnetic plate is arranged close to the slag removal wheel and is on the side of the slag removal wheel away from the first blowing pipe.

[0020] According to the above technical solution, the welding slag cleaned by the plurality of elastic metal wires is adsorbed on the surface of the magnetic plate by the elastic force of the elastic metal wires and the attraction force of the magnetic plate. The cleaned welding slag can be collected by setting the support rod and the magnetic plate, effectively improving the cleanliness of the metal pipe welding environment.

[0021] Preferably, a second blowing pipe is included. The axis of the second blowing pipe is parallel to the axis of the first blowing pipe, the second blowing pipe is arranged on the side of the welding gun away from the moving block and is fixedly connected to the welding gun, and the end away from the welding head of the welding gun is connected to the airbag through a hose.

[0022] According to the above technical solution, the airbag blows air between the two sections of the metal pipe through the second blowing pipe, so that the metal pipe is cleaned in time before welding, which effectively improves the welding effect of the metal pipe.

[0023] Preferably, a protection bucket is included. The axis of the protection bucket is parallel to the second blowing pipe, the protection bucket is sleeved on the welding head of the welding gun and the peripheral side of the second blowing pipe, and is fixedly connected to the welding gun.

[0024] According to the above technical solution, the provision of a protective bucket can effectively prevent sparks from flying during welding, thereby improving the safety of metal pipe welding.

[0025] Preferably, a filter screen is included. The filter screen is arranged in the second blowing pipe and is fixedly connected to the second blowing pipe.

[0026] According to the above technical solution, the air passing through the second blowing pipe can be filtered by setting the filter net, thereby further improving the cleaning efficiency of the connection of the metal pipe.

[0027] Beneficial effects of the present invention:

[0028] 1. Through the arrangement of the bracket, controller, welding ring, T-shaped ring groove, T-shaped slider, moving block, welding gun, motor, roller, limit block, limit groove, elastic telescopic rod, vibration block, spring, rack, first gear, L-shaped rod, torsion spring, slag removal wheel and several first teeth, the welded weld is timely tapped to make the weld expand to a certain extent and eliminate some welding residual stress. The rotating slag removal wheel separates the welding slag attached to the weld from the weld through several first teeth, thereby effectively improving the neatness of the weld.

[0029] 2. Through the arrangement of the first blowing pipe, the air bag, the piston tank, the piston cover, the first one-way valve and the second one-way valve, the weld can be cooled down in time, which effectively facilitates the subsequent processing of the welding pipeline.

[0030] 3. Through the setting of support rods and magnetic plates, the cleaned welding slag can be collected, effectively improving the cleanliness of the metal pipe welding environment.

[0031] 4. Through the setting of the second blowing pipe, the metal pipe can be cleaned in time before welding, which effectively improves the welding effect of the metal pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a partial front view structural schematic diagram of this pipeline welding device.

[0033] Explanation of the accompanying drawings: 1. welding ring; 2. T-shaped slider; 3. moving block; 4. welding gun; 5. gear; 6. limit block; 7. elastic telescopic rod; 8. rack; 9. vibration block; 10. L-shaped rod; 11. slag removal wheel; 12. first blowing pipe; 13. support rod; 14. magnetic plate; 15. second blowing pipe; 16. piston tank. DETAILED DESCRIPTION

[0034] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0035] A pipeline welding device, referring to Figure 1, including a bracket, a controller, a welding ring 1, a T-shaped ring groove, a T-shaped slider 2, a moving block 3, a welding gun 4, a motor, a roller, a limit block 6, a limit groove, an elastic telescopic rod 7, a vibration block 9, a spring, a rack 8, a first gear 5, an L-shaped rod 10, a torsion spring, a slag removal wheel 11, and a plurality of first teeth. The bracket is set on the ground. The axis of the welding ring 1 is set horizontally, and the welding ring 1 is set in the middle of the bracket and fixedly connected to the bracket. The T-shaped ring groove is set on the inner wall of the welding ring 1. The T-shaped slider 2 is set in the T-shaped ring groove and is slidably connected to the welding ring 1, and one end of the T-shaped slider 2 extends to the outside of the T-shaped ring groove. The moving block 3 is set at one end of the T-shaped slider 2 on the outside of the T-shaped ring groove and is fixedly connected to the T-shaped slider 2. The welding gun 4 is set in the welding ring 1 and is fixedly connected to the moving block 3. The welding head of the welding gun 4 is set close to the axis of the welding ring 1. The axis of the motor shaft is parallel to the axis of the welding ring 1. The motor is arranged on one side of the moving block 3 and is fixedly connected to the moving block 3. The motor is arranged near the welding ring 1 and the welding gun 4. The axis of the roller coincides with the axis of the motor shaft. The roller is arranged on one side of the motor and is fixedly connected to the motor shaft and is in close contact with the inner wall of the welding ring 1. The limit block 6 is arranged on one side of the motor shaft and is fixedly connected to the moving block 3. The limit groove is arranged on the limit block 6. The axis of the elastic telescopic rod 7 is perpendicular to the axis of the welding ring 1 and perpendicular to the side section of the welding ring 1. The elastic telescopic rod 7 is arranged in the limit groove and is slidably connected to the limit block 6. The sliding direction of the elastic telescopic rod 7 coincides with its axis, and the two ends of the elastic telescopic rod 7 extend to the outside of the limit groove respectively. The vibration block 9 is arranged on one side of the welding head of the welding gun and is fixedly connected to the end of the elastic telescopic rod 7 away from the welding ring 1. The first gear 5 is provided with one-third of the teeth. The axis of the first gear 5 coincides with the axis of the motor shaft. The first gear 5 is arranged between the roller and the motor and is fixedly connected to the motor shaft. The rack 8 is parallel to the axis of the elastic telescopic rod 7. The rack 8 is arranged at one end of the elastic telescopic rod 7 away from the vibration block 9, and is fixedly connected to the elastic telescopic rod 7 and meshed with the gear 5. The spring is arranged at one end of the elastic telescopic rod 7 close to the vibration block 9, one end of which is fixedly connected to the side of the elastic telescopic rod 7, and the other end is fixedly connected to the moving block 3. The L-shaped rod 10 is arranged below the limit block 6, one end of which is rotatably connected to the moving block 3, and the other end is on the side of the moving block 3 away from the welding gun 4. The rotation axis of the L-shaped rod 10 is parallel to the axis of the welding ring 1. The L-shaped rod 10 is arranged away from the welding gun 4 and is arranged close to the elastic telescopic rod 7. The torsion spring is arranged at the connection between the L-shaped rod 10 and the limit block 6, and its two ends are fixedly connected to the L-shaped rod 10 and the moving block 3 respectively. The axis of the slag removal wheel 11 is parallel to the axis of the welding ring 1. The slag removal wheel 11 is arranged at one end of the L-shaped rod 10 away from the moving block 3, and is rotatably connected to the L-shaped rod 10, and the rotation axis of the slag removal wheel 11 coincides with its axis. A plurality of first teeth are respectively arranged on the circumference of the slag removal wheel 11 and are respectively fixedly connected to the slag removal wheel 11. The plurality of first teeth are arranged at intervals. The controller is arranged on one side of the bracket and is fixedly connected to the bracket and is respectively electrically connected to the motor and the welding gun 4.

[0036] When it is necessary to weld the metal pipe, first, align the two sections of metal pipes and place them on the bracket, and make the two sections of metal pipes butt at the corresponding position of the welding head of the welding gun 4, the slag removal wheel 11 is lifted by the metal pipe, the L-shaped rod 10 rotates, and the torsion spring is compressed. The welding gun 4 is controlled by the controller to start welding the two sections of metal pipes, and the motor is controlled by the controller to start, and the motor drives the roller to rotate, and the roller rotates along the inner wall of the welding ring 1, and the roller drives the moving block 3 to follow it. The moving block 3 drives the welding gun 4, the limit block 6, and the L-shaped rod 10 to move respectively, and the limit block 6 drives the rack 8 and the vibration block 9 to move respectively through the elastic compression rod, and the moving welding gun 4 performs ring welding on the metal pipe. The motor drives the gear 5 to rotate. When the teeth of the rotating gear 5 contact the rack 8, the gear 5 pushes the rack 8 to move toward the elastic telescopic rod 7. The rack 8 pushes the vibration block 9 to move toward the weld through the elastic telescopic rod 7. The vibration block 9 hits the gap, and the telescopic rod is compressed. When the teeth of the rotating gear 5 disengage from the rack 8, the telescopic rod recovers, the spring recovers and drives the vibration block 9 and the rack 8 to move away from the metal pipe through the telescopic rod. The above process is repeated, and the welded weld is tapped in time to expand the weld to a certain extent and eliminate some welding residual stress. The moving L-shaped rod 10 drives the slag removal wheel 11 to move. Since the slag removal wheel 11 is in close contact with the weld at this time, the slag removal wheel 11 rotates and drives a plurality of first teeth to rotate. The rotating slag removal wheel 11 separates the welding slag attached to the weld from the weld through a plurality of first teeth, which effectively improves the neatness of the weld.

[0037] The invention comprises a plurality of elastic metal wires, which are respectively arranged on the peripheral side of the slag removal wheel 11 and are respectively fixedly connected to the slag removal wheel 11, and the plurality of elastic metal wires are arranged at intervals.

[0038] The rotating slag removal wheel 11 drives a plurality of elastic metal wires to rotate, and the rotating plurality of elastic metal wires clean the welding slag on the weld, thereby further improving the neatness of the weld.

[0039] The utility model comprises a rubber ring which is arranged on the peripheral side of the roller and is fixedly connected with the roller.

[0040] By providing the rubber ring, the friction between the roller and the welding ring 1 is effectively increased, making the operation of the welding device more stable.

[0041] The invention comprises a plurality of second teeth, which are respectively arranged on the outside of the rubber ring and are respectively fixedly connected to the rubber ring, the plurality of second teeth are arranged at intervals, and the plurality of second teeth are all made of rubber material.

[0042] The friction between the roller and the welding ring 1 is further increased by providing a plurality of second teeth.

[0043] Reference Figure 1, including a first blowing pipe 12, an airbag, a piston tank, a piston cover, a first one-way valve, and a second one-way valve. The axis of the piston tank is parallel to the rack 8, the piston tank is arranged between the rack 8 and the welding ring 1, and is fixedly connected to the moving block 3, and the opening is arranged downward. The first one-way valve is arranged at the end of the piston tank away from the rack 8, and is connected and fixedly connected to the piston tank. The second one-way valve is arranged at the end of the piston tank away from the rack 8, and is connected and fixedly connected to the piston tank. The axis of the piston cover coincides with the axis of the piston tank, the piston cover is arranged in the piston tank, and is slidably connected to the piston tank, and the side away from the first one-way valve is fixedly connected to the rack 8. The airbag is arranged on one side of the piston tank, and is fixedly connected to the piston tank to which it belongs, and is connected to the second one-way valve through a hose. The axis of the first blowing pipe 12 is parallel to the axis of the piston tank, the first blowing pipe 12 is arranged between the moving block 3 and the slag removal wheel 11, and is fixedly connected to the moving block 3, and the end away from the slag removal wheel 11 is connected to the airbag through a hose.

[0044] The reciprocating rack 8 drives the piston cover to follow its reciprocating movement. When the piston cover moves away from the first one-way valve, the piston cover sucks air into the piston tank through the first one-way valve. When the piston cover moves toward the first one-way valve, the piston cover compresses the air into the air bag for storage through the second one-way valve. The gas in the air bag is stably blown toward the weld through the first blowing pipe 12, and the weld is cooled in time, which effectively facilitates the subsequent processing of the welding pipeline.

[0045] The plurality of third teeth are respectively arranged at one end of the vibration block 9 away from the moving block 3, and are respectively fixedly connected to the vibration block 9, and the plurality of third teeth are arranged at intervals.

[0046] By setting a plurality of third teeth, the vibration block 9 can separate the attached welding slag from the welding seam in advance while knocking the welding seam, thereby improving the cleaning efficiency of the welding slag.

[0047] Reference Figure 1 , including a support rod 13 and a magnetic plate 14. The axis of the support rod 13 is perpendicular to the axis of the first blowing pipe 12 and the axis of the welding ring 1 respectively. The support rod 13 is arranged on the side of the first blowing pipe 12 away from the moving block 3, and is fixedly connected to the first blowing pipe 12. The support rod 13 is above the slag removal wheel 11. The magnetic plate 14 is obliquely arranged at one end of the support rod 13 away from the first blowing pipe 12, and is fixedly connected to the support rod 13. The magnetic plate 14 is arranged close to the slag removal wheel 11 and is on the side of the slag removal wheel 11 away from the first blowing pipe 12.

[0048] The welding slag cleaned by the plurality of elastic metal wires is adsorbed on the surface of the magnetic plate 14 by the elastic force of the elastic metal wires and the attraction of the magnetic plate 14. By setting the support rod 13 and the magnetic plate 14, the cleaned welding slag can be collected, which effectively improves the cleanliness of the metal pipe welding environment.

[0049] Reference Figure 1 , including a second blowing pipe 15. The axis of the second blowing pipe 15 is parallel to the axis of the first blowing pipe 12, and the second blowing pipe 15 is arranged on the side of the welding gun 4 away from the moving block 3, and is fixedly connected to the welding gun 4, and the end thereof away from the welding head of the welding gun 4 is connected to the airbag through a hose.

[0050] The air bag blows air between the two sections of the metal pipes through the second blowing pipe 15, so that the metal pipes are cleaned in time before welding, thereby effectively improving the welding effect of the metal pipes.

[0051] The protective bucket includes a protective bucket. The axis of the protective bucket is parallel to the second blowing pipe 15 , and the protective bucket is sleeved on the welding head of the welding gun 4 and the peripheral side of the second blowing pipe 15 , and is fixedly connected to the welding gun 4 .

[0052] The provision of a protective bucket can effectively prevent sparks from splashing during welding, thereby improving the safety of metal pipe welding.

[0053] The filter screen is arranged in the second blowing pipe 15 and is fixedly connected to the second blowing pipe 15 .

[0054] By setting the filter net, the air passing through the second blowing pipe 15 can be filtered, further improving the cleaning efficiency of the metal pipe connection.

[0055] Working principle: When it is necessary to weld a metal pipe, first, align two sections of metal pipes and place them on the bracket, and make the two sections of metal pipes butt at the corresponding position of the welding head of the welding gun 4. The slag removal wheel 11 is lifted by the metal pipe, the L-shaped rod 10 rotates, and the torsion spring is compressed. The welding gun 4 is controlled by the controller to start welding the two sections of metal pipes, and the motor is controlled by the controller to start. The motor drives the roller to rotate, and the roller rotates along the inner wall of the welding ring 1. The roller drives the moving block 3 to follow it. The moving block 3 drives the welding gun 4, the limit block 6, and the L-shaped rod 10 to move respectively. The limit block 6 drives the rack 8 and the vibration block 9 to move respectively through the elastic compression rod. The moving welding gun 4 performs ring welding on the metal pipe. The motor drives the gear 5 to rotate. When the teeth of the rotating gear 5 contact the rack 8, the gear 5 pushes the rack 8 to move in the direction of the elastic telescopic rod 7. The rack 8 pushes the vibration block 9 to move in the direction of the weld through the elastic telescopic rod 7. The vibration block 9 hits the gap, and the telescopic rod is compressed. When the teeth of the rotating gear 5 are separated from the rack 8, the telescopic rod is restored, the spring is restored and drives the vibration block 9 and the rack 8 to move away from the metal pipe through the telescopic rod. The above process is repeated, and the welded weld is tapped in time, so that the weld is expanded to a certain extent and some welding residual stress is eliminated. Through the setting of a plurality of third teeth, the vibration block 9 can separate the attached welding slag from the weld in advance while tapping the weld. The moving L-shaped rod 10 drives the slag removal wheel 11 and a plurality of elastic metal wires to move at the same time. Since the slag removal wheel 11 is in close contact with the weld at this time, the slag removal wheel 11 rotates and drives a plurality of first teeth to rotate. The rotating slag removal wheel 11 separates the welding slag attached to the weld from the weld through a plurality of first teeth. The rotating slag removal wheel 11 drives a number of elastic metal wires to rotate, and the rotating elastic metal wires clean the welding slag on the weld. The welding slag cleaned by the elastic metal wires is adsorbed on the surface of the magnetic plate 14 by the magnetic plate 14 under the action of the elastic force of the elastic metal wires and the attraction of the magnetic plate 14. The reciprocating rack 8 drives the piston cover to follow its reciprocating movement. When the piston cover moves away from the first one-way valve, the piston cover sucks air into the piston tank through the first one-way valve. When the piston cover moves toward the first one-way valve, the piston cover compresses the air into the airbag through the second one-way valve for storage. The gas in the airbag is stably blown toward the weld through the first blowing pipe 12, and the weld is cooled in time. The airbag blows air between the two sections of the metal pipe through the second blowing pipe 15, and the metal pipe is cleaned in time before welding.

[0056] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A pipeline welding device, characterized in that: The invention comprises a bracket, a controller, a welding ring (1), a T-shaped ring groove, a T-shaped slider (2), a moving block (3), a welding gun (4), a motor, a roller, a limiting block (6), a limiting groove, an elastic telescopic rod (7), a vibration block (9), a spring, a rack (8), a first gear (5), an L-shaped rod (10), a torsion spring, a slag removal wheel (11), and a plurality of first teeth; the bracket is arranged on the ground; the axis of the welding ring (1) is arranged horizontally, the welding ring (1) is arranged in the middle of the bracket, and is fixedly connected to the bracket; the T-shaped ring groove is arranged on the inner side wall of the welding ring (1); the T-shaped slider (2) is arranged in the T-shaped ring groove, and is slidably connected to the welding ring (1), and one end of the T-shaped slider (2) extends to the outside of the T-shaped ring groove; the moving block (3) is arranged at one end of the T-shaped slider (2) on the outside of the T-shaped ring groove and is fixedly connected to the T-shaped slider (2); the welding gun (4) is arranged in the welding ring (1) and is fixedly connected to the moving block (3), and the welding head of the welding gun (4) is arranged close to the axis of the welding ring (1); the axis of the motor shaft is parallel to the axis of the welding ring (1), the motor is arranged on one side of the moving block (3) and is fixedly connected to the moving block (3), and the motor is arranged close to the welding ring (1) and the welding gun (4); the axis of the roller coincides with the axis of the motor shaft, the roller is arranged on one side of the motor and is fixedly connected to the motor shaft The movable block (3) is connected to the welding ring (1) and is in close contact with the inner wall of the welding ring (1); the limiting block (6) is arranged on one side of the motor shaft and is fixedly connected to the moving block (3); the limiting groove is arranged on the limiting block (6); the axis of the elastic telescopic rod (7) is perpendicular to the axis of the welding ring (1) and to the side section of the welding ring (1); the elastic telescopic rod (7) is arranged in the limiting groove and is slidably connected to the limiting block (6); the sliding direction of the elastic telescopic rod (7) coincides with its axis, and the two ends of the elastic telescopic rod (7) respectively extend to the outside of the limiting groove; the vibration block (9) is arranged on one side of the welding head of the welding gun and is connected to the side of the elastic telescopic rod (7) away from the welding ring (1). The first gear (5) is provided with one-third of teeth, the axis of the first gear (5) coincides with the axis of the motor shaft, the first gear (5) is arranged between the roller and the motor, and is fixedly connected to the motor shaft; the rack (8) is parallel to the axis of the elastic telescopic rod (7), the rack (8) is arranged at the end of the elastic telescopic rod (7) away from the vibration block (9), and is fixedly connected to the elastic telescopic rod (7), and meshes with the gear (5); the spring is arranged at the end of the elastic telescopic rod (7) close to the vibration block (9), one end of which is fixedly connected to the side of the elastic telescopic rod (7), and the other end is fixedly connected to the moving block (3);The L-shaped rod (10) is arranged below the limit block (6), one end of which is rotatably connected to the moving block (3), and the other end is located on the side of the moving block (3) away from the welding gun (4). The rotation axis of the L-shaped rod (10) is parallel to the axis of the welding ring (1). The L-shaped rod (10) is arranged away from the welding gun (4) and close to the elastic telescopic rod (7); the torsion spring is arranged at the connection between the L-shaped rod (10) and the limit block (6), and the two ends of the torsion spring are respectively fixedly connected to the L-shaped rod (10) and the moving block (3); the slag removal The axis of the wheel (11) is parallel to the axis of the welding ring (1); the slag removal wheel (11) is arranged at one end of the L-shaped rod (10) away from the moving block (3) and is rotatably connected to the L-shaped rod (10); the rotation axis of the slag removal wheel (11) coincides with its axis; a plurality of the first teeth are respectively arranged on the circumference of the slag removal wheel (11) and are respectively fixedly connected to the slag removal wheel (11); and a plurality of the first teeth are arranged at intervals; the controller is arranged on one side of the bracket and is fixedly connected to the bracket, and is respectively electrically connected to the motor and the welding gun (4). ; 2. A pipeline welding device according to claim 1, characterized in that : comprising a plurality of elastic metal wires; the plurality of elastic metal wires are respectively arranged on the peripheral side of the slag removal wheel (11) and are respectively fixedly connected to the slag removal wheel (11), and the plurality of elastic metal wires are arranged at intervals.

3. A pipeline welding device according to claim 1, characterized in that : includes a rubber ring; the rubber ring is arranged on the peripheral side of the roller and is fixedly connected to the roller.

4. A pipeline welding device according to claim 3, characterized in that : includes a plurality of second teeth; the plurality of second teeth are respectively arranged on the outside of the rubber ring and are respectively fixedly connected to the rubber ring, the plurality of second teeth are arranged at intervals, and the plurality of second teeth are all made of rubber material.

5. A pipeline welding device according to claim 1, characterized in that : comprises a first blowing pipe (12), an air bag, a piston tank, a piston cover, a first one-way valve, and a second one-way valve; the axis of the piston tank is parallel to the rack (8), the piston tank is arranged between the rack (8) and the welding ring (1), and is fixedly connected to the moving block (3), and the opening is arranged downward; the first one-way valve is arranged at the end of the piston tank away from the rack (8), and is connected to and fixedly connected to the piston tank; the second one-way valve is arranged at the end of the piston tank away from the rack (8), and is connected to and fixedly connected to the piston tank; the axis of the piston cover is parallel to the piston tank The axes coincide with each other, the piston cover is arranged in the piston tank and is slidably connected to the piston tank, and its side away from the first one-way valve is fixedly connected to the rack (8); the airbag is arranged on one side of the piston tank and is fixedly connected to the piston tank to which it belongs, and is connected to the second one-way valve through a hose; the axis of the first blowing pipe (12) is parallel to the axis of the piston tank, the first blowing pipe (12) is arranged between the moving block (3) and the slag removal wheel (11), and is fixedly connected to the moving block (3), and its end away from the slag removal wheel (11) is connected to the airbag through a hose.

6. A pipeline welding device according to claim 1, characterized in that : comprising a plurality of third teeth; the plurality of third teeth are respectively arranged at one end of the vibration block (9) away from the moving block (3), are respectively fixedly connected to the vibration block (9), and the plurality of third teeth are arranged at intervals.

7. A pipeline welding device according to claim 5, characterized in that : It comprises a support rod (13) and a magnetic plate (14); the axis of the support rod (13) is respectively perpendicular to the axis of the first blowing pipe (12) and the axis of the welding ring (1); the support rod (13) is arranged on the side of the first blowing pipe (12) away from the moving block (3) and is fixedly connected to the first blowing pipe (12); the support rod (13) is located above the slag removal wheel (11); the magnetic plate (14) is obliquely arranged at one end of the support rod (13) away from the first blowing pipe (12) and is fixedly connected to the support rod (13); the magnetic plate (14) is arranged close to the slag removal wheel (11) and is located on the side of the slag removal wheel (11) away from the first blowing pipe (12).

8. A pipeline welding device according to claim 7, characterized in that : comprising a second blowing pipe (15); the axis of the second blowing pipe (15) is parallel to the axis of the first blowing pipe (12); the second blowing pipe (15) is arranged on a side of the welding gun (4) away from the moving block (3) and is fixedly connected to the welding gun (4); the end thereof away from the welding head of the welding gun (4) is connected to the air bag through a hose.

9. A pipeline welding device according to claim 8, characterized in that : comprising a protective bucket; the axis of the protective bucket is parallel to the second blowing pipe (15); the protective bucket is sleeved on the welding head of the welding gun (4) and the peripheral side of the second blowing pipe (15), and is fixedly connected to the welding gun (4).

10. A pipeline welding device according to claim 8, characterized in that : comprising a filter screen; the filter screen is arranged in the second blowing pipe (15) and is fixedly connected to the second blowing pipe (15).

Images