A welding robot arm and welding process for intelligent construction of process piping

Abstract

The application relates to the field of welding technology, in particular to a welding mechanical arm for intelligent construction of process pipelines and a welding process thereof, which comprises a base, a fixed rod is fixedly connected to the upper end face of the base, a lifting mechanism is arranged in the right end face of the fixed rod, a sliding rod is slidably connected to the upper end face of the fixed rod, a bearing seat bracket is arranged on the upper end face of the sliding rod, a sliding sleeve is fixedly connected to the upper end face of the bearing seat bracket, an electric push rod is slidably connected in the inner cavity of the sliding sleeve, a rotating pin shaft is rotationally connected in the output end of the electric push rod, and a fixing frame is arranged on the outer side of the end of the rotating pin shaft away from the electric push rod; the application solves the problem that the height and angle cannot be adjusted according to the position of the required welding pipeline, greatly reduces the welding efficiency of the pipeline, and the pipeline cannot be conveniently rotated by 360 degrees during welding, which causes inconvenience in welding the pipeline.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a welding robotic arm for intelligent construction of process pipelines and its welding process. Background Technology

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature, or high pressure. Modern welding utilizes various energy sources, including gas flames, electric arcs, lasers, electron beams, friction, and ultrasound. Besides its use in factories, welding can be performed in a variety of environments, such as outdoors, underwater, and in space. Regardless of the location, welding can pose dangers to operators, so appropriate protective measures must be taken. Potential injuries from welding include burns, electric shock, vision impairment, inhalation of toxic fumes, and excessive ultraviolet radiation exposure.

[0003] Currently available welding robotic arms used for intelligent construction of process pipelines cannot easily adjust their height and angle according to the location of the pipeline to be welded, which greatly reduces the welding efficiency of the pipeline. Moreover, when welding the pipeline, it is inconvenient to rotate around the pipeline 360 ​​degrees, which makes it difficult to weld the pipeline. Summary of the Invention

[0004] The purpose of this invention is to provide a welding robotic arm and its welding process for intelligent construction of process pipelines, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A welding robotic arm for intelligent construction of process pipelines and its welding process are disclosed. The robotic arm includes a base, a fixed rod fixedly connected to the upper end face of the base, a lifting mechanism disposed inside the right end face of the fixed rod, a sliding rod slidably connected to the upper end face of the fixed rod, a bearing seat bracket installed inside the upper end face of the sliding rod, a sliding sleeve fixedly connected to the upper end face of the bearing seat bracket, an electric push rod slidably connected to the inner cavity of the sliding sleeve, a rotating pin rotatably connected to the output end of the electric push rod, and a fixed frame installed on the outer side of the rotating pin away from the electric push rod.

[0007] Furthermore, a semi-circular support frame is fixedly connected to the end of the fixed frame away from the rotating pin shaft. A limiting groove is provided on the outside of the semi-circular support frame, and a semi-circular toothed ring is slidably connected to the inner cavity of the limiting groove.

[0008] Furthermore, each of the upper surfaces of the mounting bracket is fixedly connected to a micro motor, and the micro motor is fixedly connected to a gear via an output shaft, the gear meshing with a semi-circular gear ring.

[0009] Furthermore, a servo push rod is mounted on the lower end face of the semi-circular gear ring, and the servo push rod is fixedly connected to a clamping mechanism via an output shaft.

[0010] Furthermore, the upper end face of the sliding sleeve is internally threaded with a fastening bolt, and the lower end face of the fastening bolt is provided with a rubber anti-slip pad. The fastening bolt is used to press and fix the electric push rod in the inner cavity of the sliding sleeve.

[0011] Furthermore, the lifting mechanism includes a crank handle, a transmission bevel gear, a driven bevel gear, a threaded rod, and a storage groove. The storage groove is provided inside the upper end face of the fixed rod. The driven bevel gear is rotatably connected to the bottom of the inner cavity of the storage groove through a bearing. The threaded rod is fixedly connected to the upper end of the driven bevel gear.

[0012] Furthermore, the threaded rod is externally threaded with a sliding rod, the driven bevel gear is meshed with a transmission bevel gear, and a crank handle is fixedly connected to the end of the transmission bevel gear away from the driven bevel gear.

[0013] Furthermore, the clamping mechanism includes a fixed plate, a power interface, a groove, a knob, a bidirectional threaded rod, a conductive plate, a carbon brush block, a clamping block, and a clamping groove. The servo push rod is fixedly connected to the fixed plate via an output shaft. A groove is provided on the lower end face of the fixed plate. The bidirectional threaded rod is rotatably connected to the inner cavity of the groove via a bearing. A knob is fixedly connected to the left end face of the bidirectional threaded rod. Both the bidirectional threaded rod and the knob are made of insulating material.

[0014] Furthermore, the bidirectional threaded rod is externally threaded with a clamping block, and a carbon brush block is provided at one end of the clamping block at the bottom of the groove cavity. A conductive plate is provided at the bottom of the groove cavity, and an electrical interface is provided on the right end face of the fixing plate. The carbon brush block is attached to the conductive plate, and clamping grooves are provided on the close surfaces of the clamping blocks. A conductive block is provided in the cavity of the clamping groove, and the welding rod clamped in the cavity of the clamping groove is energized through the conductive block.

[0015] A welding process for intelligent construction of process piping includes the following steps:

[0016] S1. The operator places the pipe to be welded on the placement rack or lifts the pipe off the ground using a trailer. Then, the operator moves the base to the pipe to be welded using casters and adjusts the angle by rotating the fixed frame using a pivot pin. At the same time, the operator holds the crank to rotate the transmission bevel gear to drive the driven bevel gear, and the driven bevel gear rotates the threaded rod to slide into the inner cavity of the receiving groove. The slide rod then uses the bearing seat trailer to push the sliding sleeve to drive the electric push rod to adjust the height so that the semi-circular support frame can be flush with the pipe to be welded. At the same time, the operator uses the bearing seat trailer to rotate the electric push rod 360 degrees and starts the electric push rod to push the fixed frame and drive the semi-circular support frame to slide into the outside of the pipe to be welded.

[0017] S2. When welding pipes, the operator places the welding rod between the clamping blocks, then holds the knob and rotates the double-threaded rod to drive the clamping blocks, causing the clamping blocks to slide and move closer to each other in the groove cavity. This allows the clamping blocks to hold and fix the welding rod using the clamping groove. Then, the operator inserts the required power supply wire into the inner cavity of the power supply interface, and energizes the power supply interface to the conductive plate. This allows the conductive plate, in conjunction with the carbon brush block, to energize the conductive block in the inner cavity of the clamping groove using the wire. Thus, when welding pipes, the conductive block is used to energize the welding rod.

[0018] S3. After the welding rod is ready, the operator starts the micro motor to rotate the gear, and the gear drives the semi-circular gear ring to slide in the inner cavity of the limiting groove outside the semi-circular support frame. Then, the semi-circular gear ring drives the servo push rod during rotation, and then the servo push rod drives the clamping mechanism and the welding rod to weld around the pipe through the output shaft.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, the operator places the pipe to be welded on a mounting rack or lifts it off the ground using a trailer. The operator then moves the base to the pipe using casters and adjusts the angle by rotating the fixed frame using a pivot pin. Simultaneously, the operator holds a crank to rotate the driven bevel gear, which in turn rotates the threaded rod and slides the sliding rod into the inner cavity of the receiving groove. The sliding rod, driven by the bearing seat trailer, pushes the sliding sleeve to drive the electric push rod to adjust the height, ensuring that the semi-circular support frame is flush with the pipe to be welded. At the same time, the operator rotates the electric push rod 360 degrees using the bearing seat trailer and activates the electric push rod to push the fixed frame, causing the semi-circular support frame to slide into the outside of the pipe to be welded. This solves the problem that existing welding robotic arms used for intelligent construction of process pipelines cannot easily adjust the height and angle according to the position of the pipe to be welded, resulting in a significant reduction in welding efficiency.

[0021] 2. In this invention, when welding pipes, the operator places the welding rod between the clamping blocks, then holds the knob to rotate the bidirectional threaded rod to drive the clamping blocks, causing the clamping blocks to slide and connect close to each other in the groove cavity. This allows the clamping blocks to clamp and fix the welding rod using the clamping groove. Then, the operator inserts the required power supply wire into the inner cavity of the power supply interface, and energizes the power supply interface to the conductive plate. This allows the conductive plate, in conjunction with the carbon brush block, to energize the conductive block in the inner cavity of the clamping groove using the wire. Thus, when welding pipes, the conductive block energizes the welding rod to achieve the required welding conditions.

[0022] 3. In this invention, after the welding rod is ready, the operator starts the micro motor to rotate the gear, and the gear transmission semi-circular gear ring is slidably connected to the inner cavity of the limiting groove outside the semi-circular support frame. Then, the semi-circular gear ring drives the servo push rod during rotation, and then the servo push rod drives the clamping mechanism and the welding rod to weld around the pipeline through the output shaft. This realizes that the welding robotic arm used for intelligent construction of process pipelines can easily rotate around the pipeline 360 ​​degrees when welding the pipeline, which causes the trouble of not being able to weld the pipeline. Attached Figure Description

[0023] Figure 1 This is a front-view stereoscopic structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention viewed from below;

[0025] Figure 3 This is a schematic diagram of the half-section structure of the base of the present invention;

[0026] Figure 4 This is a schematic diagram of a half-section of the electric actuator of the present invention;

[0027] Figure 5 This is a schematic diagram of the overall structure of the clamping mechanism of the present invention;

[0028] Figure 6 This is a schematic diagram of the half-section structure of the fixing plate of the present invention;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] In the diagram: 1. Base; 2. Fixing rod; 3. Lifting mechanism; 301. Handle; 302. Transmission bevel gear; 303. Driven bevel gear; 304. Threaded rod; 305. Storage slot; 4. Caster wheel; 5. Slide rod; 6. Bearing seat bracket; 7. Sliding sleeve; 8. Fastening bolt; 9. Electric push rod; 10. Fixing frame; 11. Semi-circular support frame; 12. Semi-circular gear ring; 13. Micro motor; 14. Gear; 15. Rotating pin; 16. Servo push rod; 17. Clamping mechanism; 171. Fixing plate; 172. Power interface; 173. Groove; 174. Knob; 175. Bidirectional threaded rod; 176. Conductive plate; 177. Carbon brush block; 178. Clamping block; 179. Clamping groove; 18. Limiting slide groove; Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0033] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figure 1-6 The present invention provides a technical solution:

[0036] A welding robotic arm for intelligent construction of process pipelines and its welding process include a base 1, a fixed rod 2 fixedly connected to the upper end face of the base 1, a lifting mechanism 3 provided inside the right end face of the fixed rod 2, a sliding rod 5 slidably connected inside the upper end face of the fixed rod 2, a bearing seat bracket 6 installed inside the upper end face of the sliding rod 5, a sliding sleeve 7 fixedly connected to the upper end face of the bearing seat bracket 6, an electric push rod 9 slidably connected inside the sliding sleeve 7, a rotating pin 15 rotatably connected inside the output end of the electric push rod 9, and a fixed frame 10 installed on the external side of the rotating pin 15 away from the electric push rod 9.

[0037] In this embodiment, a semi-circular support frame 11 is fixedly connected to the end of the fixed frame 10 away from the rotating pin 15. A limiting groove 18 is provided on the outside of the semi-circular support frame 11. A semi-circular gear ring 12 is slidably connected to the inner cavity of the limiting groove 18. A micro motor 13 is fixedly connected to the upper end face of the fixed frame 10. A gear 14 is fixedly connected to the micro motor 13 through the output shaft. The gear 14 meshes with the semi-circular gear ring 12. A servo push rod 16 is installed on the lower end face of the semi-circular gear ring 12. A clamping mechanism 17 is fixedly connected to the servo push rod 16 through the output shaft. A fastening bolt 8 is threadedly connected to the upper end face of the sliding sleeve 7. A rubber anti-slip pad is provided on the lower end face of the fastening bolt 8. The electric push rod 9 in the inner cavity of the sliding sleeve 7 is squeezed and fixed by the fastening bolt 8.

[0038] In this embodiment, the lifting mechanism 3 includes a crank handle 301, a transmission bevel gear 302, a driven bevel gear 303, a threaded rod 304, and a storage groove 305. The storage groove 305 is provided inside the upper end face of the fixed rod 2. The driven bevel gear 303 is rotatably connected to the bottom of the inner cavity of the storage groove 305 through a bearing. The threaded rod 304 is fixedly connected to the upper end of the driven bevel gear 303. The sliding rod 5 is threadedly connected to the outside of the threaded rod 304. The driven bevel gear 303 is meshed with the transmission bevel gear 302. The crank handle 301 is fixedly connected to the end of the transmission bevel gear 302 away from the driven bevel gear 303.

[0039] In this embodiment, the clamping mechanism 17 includes a fixed plate 171, a power interface 172, a groove 173, a knob 174, a bidirectional threaded rod 175, a conductive plate 176, a carbon brush block 177, a clamping block 178, and a clamping groove 179. The servo push rod 16 is fixedly connected to the fixed plate 171 via an output shaft. A groove 173 is provided on the lower end face of the fixed plate 171. The bidirectional threaded rod 175 is rotatably connected to the inner cavity of the groove 173 via a bearing. The knob 174 is fixedly connected to the left end face of the bidirectional threaded rod 175, and the bidirectional threaded rod 175 and the knob are connected to each other. All 174 are made of insulating material. The bidirectional threaded rod 175 is externally threaded with a clamping block 178. A carbon brush block 177 is provided at one end of the bottom of the inner cavity of the clamping block 178. A conductive plate 176 is provided at the bottom of the inner cavity of the groove 173. A power interface 172 is provided on the right end face of the fixing plate 171. The carbon brush block 177 is attached to the conductive plate 176. The clamping blocks 178 are provided with clamping grooves 179 on their close surfaces. A conductive block is provided in the inner cavity of the clamping groove 179, and the welding rod clamped in the inner cavity of the clamping groove 179 is energized through the conductive block.

[0040] A welding process for intelligent construction of process piping includes the following steps:

[0041] S1. The operator places the pipe to be welded on the placement rack or lifts the pipe away from the ground using a trolley. Then, the operator moves the base 1 to the pipe to be welded using the casters 4 and adjusts the angle by rotating the fixed frame 10 using the pivot pin 15. At the same time, the operator holds the crank 301 to rotate the transmission bevel gear 302 to drive the driven bevel gear 303, and the driven bevel gear 303 rotates the threaded rod 304 and the threaded transmission slide rod 5 to slide in the inner cavity of the storage groove 305. The slide rod 5 then uses the bearing seat trolley 6 to push the sliding sleeve 7 to drive the electric push rod 9 to adjust the height so that the semi-circular support frame 11 can be flush with the pipe to be welded. At the same time, the operator uses the bearing seat trolley 6 to rotate the electric push rod 9 360 degrees and starts the electric push rod 9 to push the fixed frame 10 to drive the semi-circular support frame 11 to slide into the outside of the pipe to be welded.

[0042] S2. When welding the pipe, the operator places the welding rod between the clamping blocks 178, then holds the knob 174 to rotate the double-threaded rod 175 to drive the clamping blocks 178, and makes the clamping blocks 178 slide and move closer to each other in the inner cavity of the groove 173, so that the clamping blocks 178 use the clamping groove 179 to clamp and fix the welding rod. Then the operator inserts the required power supply wire into the inner cavity of the power supply interface 172, and makes the power supply interface 172 energize the conductive plate 176, so that the conductive plate 176, together with the carbon brush block 177, uses the wire to energize the conductive block in the inner cavity of the clamping groove 179, and then uses the conductive block to energize the welding rod when welding the pipe.

[0043] S3. After the welding rod is ready, the operator starts the micro motor 13 to rotate the gear 14, and the gear 14 drives the semi-circular gear ring 12 to slide in the inner cavity of the limiting groove 18 outside the semi-circular support frame 11. Then, the semi-circular gear ring 12 drives the servo push rod 16 during rotation, and then the servo push rod 16 drives the clamping mechanism 17 to weld the welding rod around the pipe through the output shaft.

[0044] The working principle of this invention is as follows: The operator places the pipe to be welded on the mounting rack or lifts it off the ground using a trailer. Then, the operator uses the casters 4 to move the base 1 to the pipe to be welded and uses the rotating pin 15 to rotate the fixed frame 10 to adjust the angle. Simultaneously, the operator holds the crank 301 to rotate the transmission bevel gear 302, which in turn drives the driven bevel gear 303. The driven bevel gear 303 then rotates the threaded rod 304, and the threaded transmission slide rod 5 slides within the receiving groove 305. This causes the slide rod 5 to push the sliding sleeve 7 via the bearing seat trailer 6, thereby driving the electric push rod. 9. Adjust the height so that the semi-circular support frame 11 is flush with the pipe to be welded. Simultaneously, the operator uses the bearing seat bracket 6 to rotate the electric push rod 9 360 degrees and activates the electric push rod 9 to push the fixed frame 10, causing the semi-circular support frame 11 to slide into the outside of the pipe to be welded. This solves the problem that existing welding robotic arms used for intelligent construction of process pipelines cannot easily adjust their height and angle according to the position of the pipe to be welded, resulting in a significant reduction in welding efficiency. When welding the pipe, the operator places the welding rod between the clamping blocks 178 and then grips... Rotate knob 174 to turn bidirectional threaded rod 175 and threaded drive clamp 178, causing clamp 178 to slide closer together in the inner cavity of groove 173. This allows clamp 178 to clamp and fix the welding rod using clamping groove 179. Then, insert the required power cable into the inner cavity of power interface 172, energizing the conductive plate 176. This allows the conductive plate 176, in conjunction with carbon brush block 177, to energize the conductive block in the inner cavity of clamping groove 179 using the wire. Thus, during pipe welding, the conductive block energizes the welding rod, facilitating welding conditions. After the welding rod is ready, the operator starts the micro motor 13 to rotate the gear 14, and the gear 14 drives the semi-circular gear ring 12 to slide in the inner cavity of the limiting groove 18 outside the semi-circular support frame 11. In turn, the semi-circular gear ring 12 drives the servo push rod 16 during rotation, and then the servo push rod 16 drives the clamping mechanism 17 to weld around the pipeline through the output shaft. This solves the problem that the existing welding robotic arm used for intelligent construction of process pipelines cannot rotate around the pipeline 360 ​​degrees when welding, which makes it impossible to weld the pipeline.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding robotic arm for intelligent construction of process pipelines, comprising a base (1), characterized in that: A fixed rod (2) is fixedly connected to the upper end face of the base (1). A lifting mechanism (3) is provided inside the right end face of the fixed rod (2). A sliding rod (5) is slidably connected inside the upper end face of the fixed rod (2). A bearing seat bracket (6) is installed inside the upper end face of the sliding rod (5). A sliding sleeve (7) is fixedly connected to the upper end face of the bearing seat bracket (6). An electric push rod (9) is slidably connected inside the inner cavity of the sliding sleeve (7). A rotating pin (15) is rotatably connected inside the output end of the electric push rod (9). A fixed frame (10) is installed outside the end of the rotating pin (15) away from the electric push rod (9). The fixed frame (10) is fixedly connected to a semi-circular support frame (11) at the end away from the rotating pin (15). The semi-circular support frame (11) is provided with a limiting groove (18) on the outside. A semi-circular toothed ring (12) is slidably connected to the inner cavity of the limiting groove (18). A servo push rod (16) is installed on the lower end face of the semi-circular gear ring (12), and the servo push rod (16) is fixedly connected to a clamping mechanism (17) through an output shaft. Both ends of the fixed frame (10) are fixed with micro motors (13), and the micro motors (13) are fixedly connected to gears (14) through the output shaft. The gears (14) are meshed with a semi-circular gear ring (12). The clamping mechanism (17) includes a fixed plate (171), a power interface (172), a groove (173), a knob (174), a bidirectional threaded rod (175), a conductive plate (176), a carbon brush block (177), a clamping block (178), and a clamping groove (179). The servo push rod (16) is fixedly connected to the fixed plate (171) via an output shaft. The lower end face of the fixed plate (171) is provided with a groove (173). The inner cavity of the groove (173) is rotatably connected to the bidirectional threaded rod (175) via a bearing. The left end face of the bidirectional threaded rod (175) is fixedly connected to the knob (174). Both the bidirectional threaded rod (175) and the knob (174) are made of insulating material. The bidirectional threaded rod (175) is externally threaded with a clamping block (178). The clamping block (178) is located at the bottom of the inner cavity of the groove (173) with a carbon brush block (177). The bottom of the inner cavity of the groove (173) is provided with a conductive plate (176). The right end face of the fixing plate (171) is provided with a power interface (172). The carbon brush block (177) is in contact with the conductive plate (176). The clamping blocks (178) are provided with clamping grooves (179) on their close surfaces. The inner cavity of the clamping groove (179) is provided with a conductive block, and the welding rod clamped in the inner cavity of the clamping groove (179) is energized through the conductive block.

2. The welding robotic arm for intelligent construction of process pipelines according to claim 1, characterized in that: The upper end face of the sliding sleeve (7) is internally threaded with a fastening bolt (8), and the lower end face of the fastening bolt (8) is provided with a rubber anti-slip pad. The fastening bolt (8) is used to press and fix the electric push rod (9) in the inner cavity of the sliding sleeve (7).

3. The welding robotic arm for intelligent construction of process pipelines according to claim 1, characterized in that: The lifting mechanism (3) includes a crank (301), a transmission bevel gear (302), a driven bevel gear (303), a threaded rod (304), and a storage groove (305). The upper end face of the fixed rod (2) is provided with a storage groove (305). The bottom of the inner cavity of the storage groove (305) is rotatably connected to the driven bevel gear (303) through a bearing. The upper end of the driven bevel gear (303) is fixedly connected to the threaded rod (304).

4. A welding robotic arm for intelligent construction of process pipelines according to claim 3, characterized in that: The threaded rod (304) is externally threaded with a slide rod (5), the driven bevel gear (303) is meshed with a transmission bevel gear (302), and a crank handle (301) is fixedly connected to the end of the transmission bevel gear (302) away from the driven bevel gear (303).

5. The welding process for a welding robotic arm used in intelligent construction of process pipelines according to claim 4, characterized in that, Includes the following steps: S1. The personnel place the pipe to be welded on the placement rack or lift the pipe away from the ground using the trolley. Then, the operator moves the base (1) to the pipe to be welded using the caster wheel (4) and rotates the fixed frame (10) using the rotating pin (15) to adjust the angle. At the same time, the operator holds the crank handle (301) to rotate the transmission bevel gear (302) to drive the driven bevel gear (303), and the driven bevel gear (303) rotates the threaded rod (304). The threaded transmission slide rod (5) slides in the cavity of the storage groove (305), and the slide rod (5) uses the bearing seat trolley (6) to push the sliding sleeve (7) to drive the electric push rod (9) to adjust the height so that the semi-circular support frame (11) can be flush with the pipe to be welded. At the same time, the personnel use the bearing seat trolley (6) to rotate the electric push rod (9) 360 degrees and start the electric push rod (9) to push the fixed frame (10) to drive the semi-circular support frame (11) to slide into the outside of the pipe to be welded. S2. When welding the pipe, the operator places the welding rod between the clamps (178), then holds the knob (174) and rotates the double-threaded rod (175) to drive the clamps (178) and make the clamps (178) slide in the groove (173) and move closer to each other. Then the clamps (178) use the clamping groove (179) to clamp and fix the welding rod. Then the operator inserts the required wire into the cavity of the power interface (172) and makes the power interface (172) power the conductive plate (176). Then the conductive plate (176) and the carbon brush block (177) use the wire to power the conductive block in the cavity of the clamping groove (179). Then the conductive block is used to power the welding rod when welding the pipe. S3. After the welding rod is ready, the personnel start the micro motor (13) to rotate the gear (14) and make the gear (14) drive the semi-circular gear ring (12) to slide in the inner cavity of the limiting groove (18) outside the semi-circular support frame (11). Then, the semi-circular gear ring (12) drives the servo push rod (16) during rotation. Then, the servo push rod (16) drives the clamping mechanism (17) to weld the welding rod around the pipe through the output shaft.

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