High-efficiency automatic welding device for tubular components

Abstract

This application belongs to the field of welding devices, and specifically relates to a highly efficient automated welding device for tubular components. This device addresses the low precision and efficiency issues associated with conventional tubular component welding on roller frames. The device comprises a tubular component positioning mechanism and a tubular component welding mechanism. The tubular component positioning mechanism includes a clamping assembly for securing one end of the tubular component, a driving assembly for driving the tubular component to rotate about an axis, and a support assembly for supporting the bottom of the tubular component. The tubular component welding mechanism includes a welding robot and a control assembly for driving the robot to move. This device utilizes a clamping assembly to secure one end of the tubular component, a support assembly to support the bottom of the tubular component, and a control assembly to enable the welding robot to enter the interior of the tubular component and weld between the reinforcement ring and the tubular component. During the welding process, the tubular component maintains a stable position, thereby improving the welding precision and efficiency of the tubular component.

Description

Technical Field

[0001] The present application belongs to the field of welding devices, and more specifically, relates to a high-efficiency automatic welding device for tubular components. Background Art

[0002] With the gradual reduction of terrestrial oil and gas resources, the development and utilization of marine oil and gas resources have received increasing attention. Deepwater offshore oil platforms are an important support for the development of marine oil and gas resources. The jacket of a deepwater offshore oil platform is its main steel structure. The jacket is usually made of thick plates rolled and then welded. At the same time, in order to enhance the bearing capacity of the jacket in deep sea conditions, it is necessary to weld a reinforcement ring or a crushing ring inside the jacket to increase its structural strength. The process requires that the reinforcement ring welding should adopt double-sided beveling and double-sided welding. At present, the welding of reinforcement rings and crushing rings inside tubular components mostly adopts the welding method of manual or semi-automatic welding trolleys. During the welding process, the tubular component is placed vertically. After the welding of one side of the reinforcement ring is completed, the tubular component is flipped over to weld the other side. The welding efficiency is low, and the workers have a harsh working environment when welding inside the tubular component.

[0003] Robotic automatic welding can effectively solve the above problems. However, when the existing catheter is welded with a reinforcement ring by a robot, the usual method is: the rolled and welded catheter is placed horizontally, supported by a roller frame, and the roller is driven by a motor to rotate the catheter. The welding robot arm is inserted into the catheter. During the rotation of the catheter, the welding robot welds the reinforcement ring to the inner wall of the catheter.

[0004] The following problems exist in the existing related technologies: the roller frame and the catheter rely on friction transmission, which is prone to slippage and dislocation, affecting the stability and quality of welding; at the same time, since there is a longitudinal weld with obvious excess height on the outer surface of the catheter, when the longitudinal weld rotates to the roller frame, the raised excess height will collide with the roller, causing the catheter to bump, and the resulting vibration will affect the welding quality of the catheter and the reinforcement ring. Summary of the Invention

[0005] In order to improve the welding accuracy and efficiency between the conduit and the reinforcement ring, the present application provides a high-efficiency automated welding device for tubular components.

[0006] This application provides a high-efficiency automated welding device for tubular components, which adopts the following technical solutions:

[0007] A highly efficient automated welding device for tubular components comprises a tubular component positioning mechanism and a tubular component welding mechanism; the tubular component positioning mechanism comprises a clamping assembly for fixing one end of the tubular component, a driving assembly for driving the tubular component to rotate about an axis, and a supporting assembly for supporting the bottom of the tubular component; during the rotation of the tubular component, the supporting assembly supports the tubular component while avoiding the moving longitudinal weld; the tubular component welding mechanism comprises a welding robot and a control assembly for driving the welding robot to move.

[0008] By adopting the above technical solution, when welding the reinforcement ring inside the tubular component, one end of the tubular component is clamped and fixed by the clamping assembly, the supporting assembly supports the bottom of the tubular component, and can avoid the longitudinal weld on the tubular component, so that the position of the tubular component is more stable. The welding robot is controlled by the control assembly to enter the interior of the tubular component, so that welding can be performed between the reinforcement ring and the tubular component, and the driving assembly drives the tubular component to rotate to complete the welding of one circle of the reinforcement ring with the inner wall of the tubular component. The position of the tubular component is stable during the welding process, thereby improving the welding accuracy and welding efficiency between the tubular component and the reinforcement ring.

[0009] As a further preferred embodiment, the clamping assembly includes a fixed frame and a self-centering chuck provided with a plurality of movable jaws, the plurality of movable jaws are arranged around, the self-centering chuck is rotatably connected to the fixed frame, the self-centering chuck is provided with a first driving member for driving the plurality of movable jaws to move closer to or away from each other, and the driving assembly is used to drive the self-centering chuck to rotate.

[0010] By adopting the above technical solution, one end of the tubular component is placed in the middle of the self-centering chuck, and the first driving member is used to drive multiple movable claws to move so that the movable claws abut against the outer wall of the tubular component, thereby fixing the tubular component, and then the self-centering chuck is driven to rotate by the second driving member, thereby driving the tubular component to rotate. The structure is simple, the operation is convenient, the processing efficiency is improved, and the labor intensity of workers is low.

[0011] As a further preferred embodiment, the support assembly includes a support frame, multiple rollers and a telescopic bracket, and the multiple telescopic brackets are all arranged on the support frame. The rollers are rotatably connected to the corresponding telescopic brackets, and the rotation axis of the rollers is parallel to the axis of the tubular member. The support assembly also includes a second driving member for driving the telescopic bracket to extend and retract, and the second driving member is arranged on the support frame.

[0012] By adopting the above technical solution, the second driving member drives the telescopic bracket to extend so that the roller can contact the outer wall of the tubular component, and the tubular component is supported by the roller, so that the support assembly can be applicable to tubular components of different diameters, and has better applicability.

[0013] As a further preference, the second driving member includes a hydraulic cylinder and a displacement sensor for detecting the weld of the tubular component, the hydraulic cylinder is fixedly mounted on the support frame, the telescopic bracket is arranged on the piston rod of the hydraulic cylinder, and the displacement sensor is arranged at one end of the telescopic bracket close to the roller and is electrically connected to the hydraulic cylinder.

[0014] By adopting the above technical solution, the hydraulic cylinder drives the telescopic bracket to extend, so that the roller abuts against the outer wall of the tubular component, and the multiple rollers support the tubular component. The displacement sensor on the telescopic assembly can detect the weld on the outer wall of the tubular component. When the tubular component rotates so that the weld approaches the roller, the corresponding displacement sensor drives the hydraulic cylinder to start, thereby shortening the telescopic bracket and separating the roller from the outer wall of the tubular component. After the roller avoids the weld, the hydraulic cylinder extends the telescopic bracket, and the roller contacts the outer wall of the tubular component for support. The multiple rollers avoid the weld on the tubular component in turn, making the tubular component more stable during rotation, thereby achieving better results during the welding process.

[0015] As a further preference, a support track fixed to the ground is provided at the bottom of the support frame, and the support frame is slidably arranged on the support track along the axial direction of the tubular member.

[0016] By adopting the above technical solution, the support frame slides on the support rail, thereby adjusting the support position of the roller on the tubular component. The position of the support frame can be adjusted according to the length of the tubular component, so that the roller supports different positions of the tubular component, thereby improving the support effect and making the tubular component more stable during the welding process.

[0017] As a further preference, a jaw base is provided on the self-centering chuck, and the movable jaw is detachably connected to the jaw base.

[0018] By adopting the above technical solution, the movable claw and the claw base are detachably connected, so that the movable claw can be disassembled and replaced, so as to facilitate replacement with different types of movable claws according to the specifications of the tubular component, thereby improving the clamping and fixing effect of the tubular component.

[0019] As a further preferred embodiment, a through hole is provided in the middle of the self-centering chuck, and two groups of tubular component welding mechanisms are provided, which are respectively located on both sides of the fixing frame, and the two groups of tubular component welding mechanisms can enter from both ends of the tubular component for welding.

[0020] By adopting the above technical solution, the welding robot can enter the interior of the tubular component through the perforation, so that the tubular component and the reinforcement ring can be welded simultaneously from both sides, thereby improving the welding effect between the reinforcement ring and the tubular component and increasing efficiency.

[0021] As a further preference, the control component includes a mounting frame, a pushing member and a bracket body, the mounting frame is arranged on the bracket body, the welding robot is arranged on the mounting frame, and the pushing member is used to drive the mounting frame to move along the axial direction of the tubular component.

[0022] By adopting the above technical solution, the pushing member drives the welding robot to move on the mounting frame, so that the welding robot moves along the axial direction of the tubular component, thereby realizing welding of the longitudinal connecting seam of the tubular component, and when welding the reinforcement ring, the welding robot can be accurately transported to the appropriate position to facilitate welding between the reinforcement ring and the tubular component.

[0023] As a further preferred embodiment, the pushing member includes a driving motor, a screw rod and a slider, the driving motor is fixedly mounted on the mounting frame, the screw rod is coaxially fixedly connected to the output shaft of the driving motor, the slider is slidably connected to the mounting frame, the slider is threadedly connected to the screw rod and the slider is fixedly arranged on the bracket body.

[0024] By adopting the above technical solution, the drive motor is started to drive the screw to rotate. The rotation of the screw can drive the mounting frame to move relative to the slider, thereby driving the position of the welding robot to change. The slider is relatively stable during the sliding process, thereby improving the stability of the welding robot's movement and improving the welding accuracy.

[0025] As a further preferred embodiment, the bracket body includes a lifting member and a displacement track, the lifting member is slidably set on the displacement track, the slider is set at the output end of the lifting member, and the pushing member, lifting member and displacement track cooperate to enable the welding robot to move in space.

[0026] By adopting the above technical solution, the lifting member slides on the displacement track, and at the same time the lifting member can drive the slider to move in the vertical direction, so that the welding robot can move to the inside or outside of the tubular component, so that after the welding robot completes welding the connecting seam on the outside of the tubular component, it can be moved to the inside to weld the connecting seam or weld the reinforcement ring.

[0027] In summary, this application includes at least the following beneficial technical effects:

[0028] 1. When welding a reinforcement ring inside a tubular component, a clamping assembly clamps and secures one end of the tubular component, while a support assembly supports the bottom of the tubular component, ensuring workpiece displacement accuracy and, therefore, welding quality. Control assemblies on both sides of the tubular component allow two welding robots to enter the tubular component, allowing the welding device to simultaneously weld the reinforcement ring to the tubular component from both sides. The drive assembly drives the tubular component to rotate, completing the welding of the reinforcement ring to the tubular component. During the welding process, the tubular component maintains a stable position, thereby improving the welding accuracy and efficiency between the tubular component and the reinforcement ring.

[0029] 2. The hydraulic cylinder drives the telescopic bracket to extend, so that the roller contacts the outer wall of the tubular component. The multiple rollers support the tubular component and are suitable for supporting tubular components of different diameters. The displacement sensor on the telescopic assembly can detect the longitudinal weld with obvious excess height on the outer wall of the tubular component. When the tubular component rotates and the weld approaches the roller, the corresponding displacement sensor drives the hydraulic cylinder to start, thereby shortening the telescopic bracket and separating the roller from the outer wall of the tubular component. At the same time, the other rollers continue to support the tubular component without affecting the stability of the tubular component. After the roller avoids the weld, the hydraulic cylinder extends the telescopic bracket and the roller contacts the outer wall of the tubular component for support. The multiple rollers avoid the weld on the tubular component in turn, making the tubular component more stable during rotation, thereby effectively avoiding the bumps and vibrations of the tubular component caused by the longitudinal seam during welding, thereby ensuring welding stability and quality.

[0030] 3. The pusher, lifter and displacement track cooperate to enable the welding robot to move in space, so that the joint seam between the outer wall and the inner wall of the rolled tubular component can be welded first, and then the reinforcing ring and the tubular component can be welded after the welding is completed, so as to improve the processing efficiency of the tubular component. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 2 It is a front view structural diagram of an embodiment of the present application;

[0033] Figure 3 is a side structural diagram of an embodiment of the present application;

[0034] Figure 4 is a schematic diagram of a top view of the structure of an embodiment of the present application;

[0035] Figure 5 This is a schematic diagram of the overall structure of the connection seam of the welded tubular component according to an embodiment of the present application;

[0036] Figure 6This is a schematic diagram of the overall structure of the welded tubular component and the reinforcement ring in an embodiment of the present application;

[0037] Figure 7 This is a schematic diagram of the overall structure of the displacement track and the lifting member in an embodiment of the present application;

[0038] Figure 8 It is a schematic diagram of the overall structure of the fixing frame shown in the embodiment of the present application.

[0039] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0040] 1. Tubular component positioning mechanism; 11. Clamping assembly; 111. Fixed frame; 112. Self-centering chuck; 1121. Perforation; 113. Movable clamping jaw; 114. Clamping jaw base; 115. First driving member; 12. Driving assembly; 13. Support assembly; 131. Support frame; 132. Roller; 133. Telescopic bracket; 134. Second driving member; 1341. Hydraulic cylinder; 1342. Displacement sensor; 135. Support rail; 2. Tubular component welding mechanism; 21. Welding robot; 22. Control assembly; 221. Mounting frame; 222. Pushing member; 2221. Driving motor; 2222. Screw rod; 2223. Slider; 223. Lifting member; 224. Displacement rail; 225. Fixed frame. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0042] The following is combined with Figure 1-8 This application is described in further detail.

[0043] The embodiment of the present application discloses a high-efficiency automated welding device for tubular components.

[0044] Reference Figure 1 The high-efficiency automatic welding device for tubular components includes a tubular component positioning mechanism 1 and a tubular component welding mechanism 2. The tubular component positioning mechanism 1 is used to fix the tubular component so that the tubular component welding mechanism 2 can weld the connecting seam on the tubular component. The tubular component positioning mechanism 1 can drive the tubular component to rotate so that after the tubular component connecting seam is welded, the tubular component welding mechanism 2 can weld the reinforcement ring inside the tubular component. Similarly, this embodiment is applicable to the welding of other components inside the tubular component.

[0045] In order to facilitate clamping and fixing the tubular component, the tubular component positioning mechanism 1 includes a clamping assembly 11 for fixing one end of the tubular component. The clamping assembly 11 includes a fixing frame 111 and a self-centering chuck 112 provided with a plurality of movable claws 113. The fixing frame 111 is fixedly connected to the ground, and the self-centering chuck 112 is rotatably connected to the fixing frame 111 and the axis is in the horizontal direction. In this embodiment, three movable claws 113 are provided, and three claw bases 114 are slidably connected to the self-centering chuck 112. The movable claws 113 are detachably connected to the claw base 114, and the movable claws 113 are fixedly connected to the claw base 114 by screws. The movable claws 113 can be disassembled and replaced so as to be replaced with different types of movable claws according to the specifications of the tubular component. The movable jaws 113 are arranged in a surrounding manner. The self-centering chuck 112 is provided with a first driving member 115 for driving the three movable jaws 113 to move closer to or away from each other. The tubular component is placed horizontally and one end is inserted between the three movable jaws 113. The three movable jaws 113 are close to each other to clamp the tubular component. The first driving member 115 includes a turntable and a rotating motor. The turntable is coaxially connected to the self-centering chuck 112. A spiral pattern is provided on the side of the turntable close to the jaw base 114. A groove adapted to the spiral pattern is provided on the jaw base 114. The rotating motor drives the turntable to rotate, thereby driving the three movable jaws 113 to move closer to or away from each other. This structure is the conventional usage principle of the self-centering chuck 112 and is therefore not shown in the figure.

[0046] To improve the stability of the tubular member, the tubular member positioning mechanism 1 further includes a support assembly 13 for supporting the bottom of the tubular member. The support assembly 13 includes a support frame 131, a plurality of rollers 132, and a telescopic bracket 133. The plurality of telescopic brackets 133 are fixedly mounted on the support frame 131. The rollers 132 are rotatably connected to the corresponding telescopic brackets 133. The rotation axis of the rollers 132 is parallel to the axis of the tubular member. The support frame 131 is provided with a second driving member 134 for driving the telescopic bracket 133 to extend or retract so that the rollers 132 contact or disengage with the outer wall of the tubular member. The second driving member 134 drives the telescopic bracket 133 to extend so that the rollers 132 contact the outer wall of the tubular member. The tubular member is supported by the rollers 132, so that the support assembly 13 can be applied to support tubular members of different diameters.

[0047] A support track 135 fixed to the ground is provided at the bottom of the support frame 131. The support frame 131 is connected to the support track 135 by sliding along the axial direction of the tubular component. The support frame 131 slides on the support track 135 to adjust the supporting position of the roller 132 on the tubular component. The position of the support frame 131 can be adjusted according to the length of the tubular component, so that the roller 132 supports different positions of the tubular component, thereby improving the supporting effect.

[0048] The tubular component is usually formed by rolling and welding a steel plate of a certain thickness. After the rolled tubular component is clamped and fixed, the tubular component welding mechanism 2 is used to weld the joint of the tubular component. Specifically, the tubular component welding mechanism 2 includes a welding robot 21 and a control component 22 for driving the welding robot 21 to move. The welding robot 21 is a six-axis industrial robot. During the actual welding process, a welding power supply, welding cable, welding gun, wire feeder and shielding gas device are also required. The welding gun is fixedly connected to the welding robot 21, and the welding cable connects the welding gun and the welding power supply. During the welding process, the welding robot carries the welding gun into or outside the pipe to weld the weld.

[0049] A through-hole 1121 is formed in the middle of the self-centering chuck 112. Two sets of tubular component welding mechanisms 2 are provided, and the two sets of tubular component welding mechanisms 2 are respectively located on both sides of the fixing frame 111. The welding robot 21 can pass through the through-hole 1121 to enter the interior of the tubular component, thereby being able to weld the tubular component and the reinforcement ring simultaneously from both sides, thereby improving the welding effect between the reinforcement ring and the tubular component and increasing efficiency.

[0050] Specifically, the control assembly 22 drives the welding robot 21 to move along the axis of the tubular member to weld the joint of the tubular member. In this embodiment, the control assembly 22 includes a mounting frame 221, a pushing member 222, and a support body. The mounting frame 221 is provided on the support body, and the welding robot 21 is fixedly mounted on the mounting frame 221. The pushing member 222 is used to drive the mounting frame 221 to move along the axis of the tubular member.

[0051] The pushing member 222 includes a driving motor 2221, a screw rod 2222 and a slider 2223. The driving motor 2221 is fixedly mounted on the mounting frame 221. The screw rod 2222 is coaxially fixedly connected to the output shaft of the driving motor 2221. The axial direction of the screw rod 2222 is parallel to the axial direction of the tubular member. The slider 2223 is slidably connected to the mounting frame 221. The slider 2223 is sleeved on the screw rod 2222 and threadedly connected to the screw rod 2222. The slider 2223 is fixedly mounted on the bracket body. When the driving motor 2221 is started, the screw rod 2222 is driven to rotate. The rotation of the screw rod 2222 can drive the mounting frame 221 to slide relative to the slider 2223, thereby driving the welding robot 21 to move along the axial direction of the tubular member, so that the welding robot 21 welds the connecting seam of the tubular member.

[0052] The bracket body includes a lifting member 223 and a shifting track 224, the lifting member 223 is slidably arranged on the shifting track 224, the slider 2223 is arranged at the output end of the lifting member 223, the pushing member 222, the lifting member 223 and the shifting track 224 cooperate to make the welding robot 21 move in space, the mounting frame 221 is slidably arranged on the shifting track 224 along the horizontal direction, and the sliding direction of the mounting frame 221 is perpendicular to the axial direction of the tubular member, the lifting member 223 is arranged between the shifting track 224 and the mounting frame 221 for lifting the mounting frame 221, specifically, the lifting member 223 is preferably a vertically arranged rodless cylinder slidably connected to the shifting track 224, the slider 2223 is fixedly mounted on the output shaft of the rodless cylinder, that is, the output end of the lifting member 223, and the welding robot 21 is moved in space by the pushing member 222, the lifting member 223 and the shifting track 224.

[0053] The bracket body can also be a fixed frame 225 fixed on the ground, and the slider 2223 is fixedly connected to the fixed frame 225. When the drive motor 2221 is started, the screw rod 2222 is driven to rotate. The rotation of the screw rod 2222 can drive the mounting frame 221 to slide relative to the slider 2223, thereby driving the welding robot 21 to move along the axial direction of the tubular component.

[0054] Two groups of welding robots 21 can simultaneously weld the connection seams of the outer wall and inner wall of the rolled tubular component to achieve double-arc double-sided welding. After welding is completed, the welding robots 21 that weld the outer wall connection seams are moved to the interior of the tubular component, and then welding is performed between the reinforcing ring and the tubular component, making the processing efficiency of the tubular component higher; the bracket body adopts a combination of a fixed frame 225 or a lifting member 223 and a displacement track 224, which can be arbitrarily matched according to processing needs.

[0055] After the tubular component connection seam is welded, the reinforcement ring inside the tubular component is welded. When welding the reinforcement ring, the tubular component is rotated, and the self-centering chuck 112 is rotatably connected to the fixing frame 111. The tubular component positioning mechanism 1 includes a driving assembly 12 for driving the self-centering chuck 112 to rotate. The driving assembly 12 includes a servo motor and a reducer. The servo motor is connected to the outer peripheral wall of the self-centering chuck 112 through the reducer. After the servo motor is started, the self-centering chuck 112 is driven to rotate, thereby driving the tubular component to rotate, so that the welding robot 21 can complete the welding of the reinforcement ring to the tubular component.

[0056] In order to prevent the weld seam on the tubular component from vibrating after contacting the roller 132 and affecting the welding effect, during the rotation of the tubular component, the support assembly 13 supports the tubular component while avoiding the longitudinal weld seam in motion. The second driving member 134 includes a hydraulic cylinder 1341 and a displacement sensor 1342 for detecting the weld seam of the tubular component. The hydraulic cylinder 1341 is fixedly mounted on the support frame 131, and the telescopic bracket 133 is mounted on the piston rod of the hydraulic cylinder 1341. The displacement sensor 1342 is fixedly mounted on one end of the telescopic bracket 133 close to the roller 132 and is electrically connected to the hydraulic cylinder 1341. The hydraulic cylinder 1341 drives the telescopic bracket 133 to extend, thereby causing the roller 132 to rotate. 32 abuts against the outer wall of the tubular component, and multiple rollers 132 support the tubular component. The displacement sensor 1342 on the telescopic assembly can detect the weld on the outer wall of the tubular component. When the tubular component rotates and the weld approaches the roller 132, the corresponding displacement sensor 1342 drives the hydraulic cylinder 1341 to start, thereby shortening the telescopic bracket 133 and separating the roller 132 from the outer wall of the tubular component. After the roller 132 avoids the weld, the hydraulic cylinder 1341 extends the telescopic bracket 133, and the roller 132 contacts the outer wall of the tubular component for support. Multiple rollers 132 avoid the weld on the tubular component in turn, making the tubular component more stable during rotation.

[0057] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-efficiency automatic welding device for tubular components, characterized by: It comprises a tubular component positioning mechanism (1) and a tubular component welding mechanism (2); The tubular member positioning mechanism (1) comprises a clamping assembly (11) for fixing one end of the tubular member, a driving assembly (12) for driving the tubular member to rotate about an axis, and a supporting assembly (13) for supporting the bottom of the tubular member. During the rotation of the tubular member, the supporting assembly (13) can support the tubular member while avoiding the longitudinal weld on the tubular member. The tubular component welding mechanism (2) comprises a welding robot (21) and a control component (22) for driving the welding robot (21) to move; The support assembly (13) includes a support frame (131), a plurality of rollers (132) and a telescopic bracket (133), wherein the plurality of telescopic brackets (133) are all arranged on the support frame (131), the rollers (132) are rotatably connected to the corresponding telescopic brackets (133), and the rotation axis of the rollers (132) is parallel to the axis of the tubular component. The support assembly (13) also includes a second driving member (134) for driving the telescopic bracket (133) to extend and retract, wherein the second driving member (134) is arranged on the support frame (131), and the second driving member (134) drives the telescopic bracket (133) to extend so as to make the rollers (132) contact the outer wall of the tubular component. The second driving member (134) includes a hydraulic cylinder (1341) and a displacement sensor (1342) for detecting the longitudinal weld of the tubular component. The hydraulic cylinder (1341) is fixedly mounted on the support frame (131). The telescopic bracket (133) is arranged on the piston rod of the hydraulic cylinder (1341). The displacement sensor (1342) is arranged at one end of the telescopic bracket (133) close to the roller (132) and is electrically connected to the hydraulic cylinder (1341). The hydraulic cylinder (1341) drives the telescopic bracket (133) to extend, causing the roller (132) to abut against the outer wall of the tubular component. The multiple rollers (132) support the tubular component. The displacement sensor (1342) on the telescopic assembly can detect the weld on the outer wall of the tubular component. When the tubular component rotates so that the weld approaches the roller (132), the corresponding displacement sensor (1342) drives the hydraulic cylinder (1341) to start, thereby shortening the telescopic bracket (133) and separating the roller (132) from the outer wall of the tubular component. After the roller (132) avoids the weld, the hydraulic cylinder (1341) extends the telescopic bracket (133), causing the roller (132) to contact the outer wall of the tubular component for support. The multiple rollers (132) avoid the weld on the tubular component in sequence.

2. The high-efficiency automatic welding device for tubular components according to claim 1, characterized in that: The clamping assembly (11) comprises a fixed frame (111) and a self-centering chuck (112) provided with a plurality of movable claws (113), wherein the plurality of movable claws (113) are arranged around, and the self-centering chuck (112) is rotatably arranged on the fixed frame (111), and a first driving member (115) for driving the plurality of movable claws (113) to move closer to or away from each other is provided on the self-centering chuck (112), and the driving assembly (12) is used to drive the self-centering chuck (112) to rotate.

3. The high-efficiency automatic welding device for tubular components according to claim 1, characterized in that: A support track (135) fixed on the ground is provided at the bottom of the support frame (131), and the support frame (131) is slidably arranged on the support track (135) along the axial direction of the tubular component.

4. The high-efficiency automatic welding device for tubular components according to claim 2, characterized in that: A clamping claw base (114) is provided on the self-centering chuck (112), and the movable clamping claw (113) is detachably connected to the clamping claw base (114).

5. The high-efficiency automatic welding device for tubular components according to claim 2, characterized in that: A through hole (1121) communicating with the tubular component is provided in the middle of the self-centering chuck (112), and two groups of tubular component welding mechanisms (2) are provided. The two groups of tubular component welding mechanisms (2) are respectively located on both sides of the fixing frame (111), and the two groups of tubular component welding mechanisms (2) can enter from both ends of the tubular component for welding.

6. The high-efficiency automatic welding device for tubular components according to claim 1, characterized in that: The control assembly (22) comprises a mounting frame (221), a pushing member (222) and a bracket body; the mounting frame (221) is arranged on the bracket body; the welding robot (21) is arranged on the mounting frame (221); and the pushing member (222) is used to drive the mounting frame (221) to move along the axial direction of the tubular component.

7. The high-efficiency automatic welding device for tubular components according to claim 6, characterized in that: The pushing member (222) comprises a driving motor (2221), a screw rod (2222) and a slider (2223); the driving motor (2221) is fixedly mounted on the mounting frame (221); the screw rod (2222) is coaxially fixedly connected to the output shaft of the driving motor (2221); the slider (2223) is slidably connected to the mounting frame (221); and the slider (2223) is threadedly connected to the screw rod (2222).

8. The high-efficiency automatic welding device for tubular components according to claim 7, characterized in that: The support body comprises a lifting member (223) and a displacement track (224); the lifting member (223) is slidably arranged on the displacement track (224); the slider (2223) is arranged at the output end of the lifting member (223); and the pushing member (222), the lifting member (223) and the displacement track (224) cooperate to enable the welding robot (21) to move in space.

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