A rotating mechanism for a climbing frame welding robot based on a plasma arc welding machine

Abstract

The application provides a rotating mechanism of a climbing frame welding robot based on a plasma arc welding machine, and relates to the technical field of climbing frame welding equipment. The application has the advantages of simple and reasonable structure, low manufacturing cost, convenient overall installation, realization of wide-range horizontal rotation of a welding gun, far-near telescopic adjustment and multidirectional angle fine adjustment through multi-motor cooperation with gear and rack and bevel gear multi-stage transmission layout, effective adaptation to welding station operation requirements of different directions, different thicknesses and complex welds of a building climbing frame, independent controllable multiple sets of driving transmission structures, linkage synchronous operation and independent accurate regulation and control, multi-dimensional fine adjustment of a welding gun posture, close transmission cooperation, high control precision, real-time adjustment of position and angle along a welding track during a welding process, guarantee of flat and firm welding joints and satisfaction of high-standard welding process requirements of a climbing frame.

Description

Technical Field

[0001] This invention relates to the field of climbing formwork welding equipment technology, and in particular to a rotating mechanism for a climbing formwork welding robot based on a plasma arc welding machine. Background Technology

[0002] As a commonly used high-altitude work auxiliary facility in the construction industry, the structural stability of climbing scaffolding directly affects construction safety, and welding quality is a key factor in ensuring the structural strength of the climbing scaffolding. Currently, climbing scaffolding welding mostly uses plasma arc welding machines in conjunction with welding robots. The rotating mechanism, as the core actuator of the welding robot, is responsible for driving the welding torch to achieve multi-directional angle adjustment and positional movement, directly determining welding accuracy and work efficiency. Existing rotating mechanisms of climbing scaffolding welding robots generally suffer from unreasonable structural design and low transmission accuracy. Most mechanisms can only achieve rotational adjustment in a single direction, making it difficult to adapt to the complex and diverse welding station requirements of climbing scaffolding. Furthermore, the existing rotating mechanisms have dispersed drive components with poor coordination, resulting in insufficient synchronization of the welding torch's extension and rotation, easily leading to welding deviations. In addition, some mechanisms use a single drive method, which cannot achieve precise adjustment of the welding torch angle, making it difficult to meet the welding process requirements of climbing scaffolding of different thicknesses and complex weld seams. In addition, existing rotating mechanisms have drawbacks such as cumbersome installation, high production costs, and complex control, which are not conducive to large-scale promotion and application. Therefore, developing a rotating mechanism for climbing scaffold welding robots with a compact structure, precise transmission, and flexible adjustment has become an urgent technical problem to be solved in the field of climbing scaffold welding equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a rotating mechanism for a climbing scaffold welding robot based on a plasma arc welding machine to solve the above-mentioned problems. This invention addresses the technical issues of existing climbing scaffold welding robot rotating mechanisms, such as single adjustment direction, low transmission accuracy, poor linkage coordination, inability to achieve multi-dimensional fine adjustment of the welding torch, cumbersome installation, high production cost, and difficulty in adapting to the complex welding positions and process requirements of climbing scaffolds.

[0004] To address the aforementioned problems, this invention provides a technical solution: a rotating mechanism for a climbing welding robot based on a plasma arc welding machine, comprising a housing, a drive mechanism, a rotating seat, a connecting seat, and a rotating structure; the rotating seat is movably connected to the right side of the housing; the drive mechanism is located inside the housing and the rotating seat, and the connecting seat is fixedly connected to the end of the drive mechanism, with the rotating structure located inside the connecting seat, and the rotating structure is connected to the control end of the drive mechanism.

[0005] Preferably, the drive mechanism includes a drive structure, rack one, rack two, rack three, driven gear one, driving gear one, and motor one; the left side of the drive structure is located inside the housing, and the right side of the drive structure is movably connected to the center of the rotating seat; rack one, rack two, and rack three are all movably connected to the guide holes provided on the right side of the rotating seat, and rack one, rack two, and rack three are all connected to the corresponding output ends on the right side of the drive structure; the end of rack one is fixedly connected to a connecting seat; the center of driven gear one is fixedly connected to the left side of the rotating seat; motor one is fixedly connected to the upper side of the housing, and driving gear one is fixedly connected to the output shaft of motor one, and driving gear one is connected to driven gear one.

[0006] Preferably, the motor is a servo motor or a stepper motor.

[0007] Preferably, the drive structure includes a second motor, a second driving gear, a second driven gear, a first transmission sleeve, a first transmission gear, a second transmission gear, a third transmission gear, a first transmission shaft, a second transmission sleeve, a third driving gear, a third motor, a fourth motor, and a third driven gear. The second, fourth, and third motors are all fixedly connected to the lower interior of the housing. The second driving gear is fixedly connected to the right output shaft of the second motor, and the third driving gear is fixedly connected to the right output shaft of the third motor. The first transmission sleeve is externally movably connected to the center interior of the rotating seat. The second driven gear is fixedly connected to the left exterior of the first transmission sleeve, and the second driven gear is connected to the second driving gear. The transmission sleeve 1 is connected in the following manner: a transmission gear 1 is fixedly connected to the outside of the right side of the transmission sleeve 1, and the transmission gear 1 is connected to the rack 1; a transmission sleeve 2 is movably connected to the inside of the transmission sleeve 1; a driven gear 3 is fixedly connected to the outside of the left side of the transmission sleeve 2, and the driven gear 3 is connected to the driving gear 3; a transmission gear 2 is fixedly connected to the outside of the right side of the transmission sleeve 2, and the transmission gear 2 is connected to the rack 2; a transmission shaft 1 is movably connected to the inside of the center of the transmission sleeve 2; the center of the left side of the transmission shaft 1 is fixedly connected to the right output shaft of the motor 4; a transmission gear 3 is fixedly connected to the outside of the right side of the transmission shaft 1, and the transmission gear 3 is connected to the rack 3.

[0008] Preferably, motors two, four, and three are servo motors or stepper motors.

[0009] Preferably, the rotating structure includes a fixing screw, a fourth transmission gear, a second transmission shaft, a third transmission sleeve, a fifth transmission gear, a first bevel gear, a second bevel gear, and a rotating structure; the end of the first rack is fixedly connected to the upper left side of the connecting seat by several fixing screws; the third transmission sleeve is externally movably connected to the center of the connecting seat, the fifth transmission gear is fixedly connected to the left side of the third transmission sleeve and is connected to the third rack, and the first bevel gear is fixedly connected to the right side of the third transmission sleeve; the second transmission shaft is externally movably connected to the center of the third transmission sleeve, the fourth transmission gear is fixedly connected to the left end of the second transmission shaft and is connected to the second rack, and the second bevel gear is fixedly connected to the right end of the second transmission shaft; the rotating structure is located on the lower right side of the connecting seat, and the upper input end of the rotating structure is connected to the first and second bevel gears.

[0010] Preferably, the rotating structure includes a movable seat, a transmission sleeve four, a bevel gear three, a bevel gear four, a transmission shaft three, a bevel gear five, a bevel gear six, a welding torch mounting block, a mounting hole, and a locking screw. The upper side of the movable seat is movably connected to the lower right side of the connecting seat. The transmission sleeve four is fixedly connected to the center of the upper side of the movable seat, and a bevel gear three is provided on the upper outer side of the transmission sleeve four, which is connected to a bevel gear one. The transmission shaft three is movably connected inside the transmission sleeve four. A bevel gear four is fixedly connected to the upper end of the transmission shaft three, which is connected to a bevel gear two. A bevel gear five is fixedly connected to the lower end of the transmission shaft three. The transmission shaft four is movably connected to the lower inner side of the movable seat. A bevel gear six is ​​fixedly connected inside the transmission shaft four, which is connected to a bevel gear five. A welding torch mounting block is fixedly connected to the outer end of the transmission shaft four. The welding torch mounting block has a mounting hole inside, and a locking screw is movably connected in a threaded hole on the side of the mounting hole.

[0011] Preferably, the locking screw is an internal hexagon screw.

[0012] The beneficial effects of the present invention are: (1) The present invention has a simple and reasonable structural design, low manufacturing cost, and convenient overall installation. Through the multi-motor combination with gear rack and bevel gear multi-stage transmission layout, the welding torch can achieve a wide range of horizontal rotation, near and far extension adjustment and multi-directional angle fine adjustment, effectively adapting to the welding station operation needs of different directions, different thicknesses and complex welds of building climbing frame.

[0013] (2) The present invention adopts an independent and controllable multi-group drive transmission structure, which can be linked and synchronized or individually and precisely controlled. It can realize multi-dimensional fine adjustment of the welding torch posture, with tight transmission and high control accuracy. During the welding process, the position and angle can be adjusted in real time according to the welding trajectory to ensure that the welded joint is flat and firm, and meets the high standard welding process requirements of the climbing frame.

[0014] (3) The present invention has a compact overall layout and high integration. The welding gun clamping and fixing operation is simple and reliable. After welding, it is easy to disassemble and maintain. The transmission and drive components have good coordination and compensation, and strong running stability. It effectively solves the problems of single adjustment form, poor transmission accuracy, weak linkage and poor adaptability of traditional rotating mechanisms. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 for Figure 1 A sectional view.

[0017] Figure 3 This is a schematic diagram of the drive mechanism.

[0018] Figure 4 This is a schematic diagram of the driving structure.

[0019] Figure 5 This is a schematic diagram of the rotating structure.

[0020] Figure 6 This is a schematic diagram of a rotating structure.

[0021] 1-Machine housing; 2-Drive mechanism; 3-Rotating seat; 4-Connecting seat; 5-Rotating structure; 21-Drive structure; 22-Rack 1; 23-Rack 2; 24-Rack 3; 25-Driven gear 1; 26-Driving gear 1; 27-Motor 1; 211-Motor 2; 212-Driving gear 2; 213-Driven gear 2; 214-Transmission sleeve 1; 215-Transmission gear 1; 216-Transmission gear 2; 217-Transmission gear 3; 218-Transmission shaft 1; 219-Transmission sleeve 2; 2110-Driving gear 3; 2111-Motor 3. Machine; 2112-Motor 4; 2113-Driven Gear 3; 51-Fixing Screw; 52-Transmission Gear 4; 53-Transmission Shaft 2; 54-Transmission Sleeve 3; 55-Transmission Gear 5; 56-Bevel Gear 1; 57-Bevel Gear 2; 58-Rotating Structure; 581-Moving Seat; 582-Transmission Sleeve 4; 583-Bevel Gear 3; 584-Bevel Gear 4; 585-Transmission Shaft 3; 586-Bevel Gear 5; 587-Bevel Gear 6; 588-Transmission Shaft 4; 589-Welding Gun Mounting Block; 5810-Mounting Hole; 5811-Locking Screw. Detailed Implementation

[0022] like Figure 1 and Figure 2As shown, the specific embodiment adopts the following technical solution: a rotating mechanism for a climbing welding robot based on a plasma arc welding machine, including a housing 1, a drive mechanism 2, a rotating seat 3, a connecting seat 4, and a rotating structure 5; the rotating seat 3 is movably connected to the right side of the housing 1; the drive mechanism 2 is located inside the housing 1 and the rotating seat 3, the end of the drive mechanism 2 is fixedly connected to the connecting seat 4, and the rotating structure 5 is provided inside the connecting seat 4, and the rotating structure 5 is connected to the control end of the drive mechanism 2.

[0023] like Figure 3 As shown, the drive mechanism 2 includes a drive structure 21, rack 22, rack 23, rack 3 24, driven gear 25, driving gear 26, and motor 27. The drive structure 21 is located inside the housing 1 on the left side, and is movably connected to the center of the rotating base 3 on the right side. Racks 22, 23, and 24 are all movably connected to the guide holes on the right side of the rotating base 3, and are connected to the corresponding output ends on the right side of the drive structure 21. The end of rack 22 is fixedly connected to the connecting seat 4. The center of driven gear 25 is fixedly connected to the outside of the left side of the rotating base 3. Motor 27 is fixedly connected to the upper side of the housing 1, and driving gear 26 is fixedly connected to the output shaft of motor 27, and driving gear 26 is connected to driven gear 25.

[0024] Among them, motor 27 is a servo motor or a stepper motor.

[0025] like Figure 4As shown, the drive structure 21 includes a second motor 211, a second driving gear 212, a second driven gear 213, a first transmission sleeve 214, a first transmission gear 215, a second transmission gear 216, a third transmission gear 217, a first transmission shaft 218, a second transmission sleeve 219, a third driving gear 2110, a third motor 2111, a fourth motor 2112, and a third driven gear 2113. The second motor 211, the fourth motor 2112, and the third motor 2111 are all fixedly connected to the lower interior of the housing 1. The second driving gear 212 is fixedly connected to the right output shaft of the second motor 211, and the third driving gear 2110 is fixedly connected to the right output shaft of the third motor 2111. The first transmission sleeve 214 is externally movably connected to the center interior of the rotating seat 3. The second driven gear 213 is fixedly connected to the left exterior of the first transmission sleeve 214, and the second driven gear 213 is... The drive gear 212 is connected to the drive gear 215. The drive gear 215 is fixedly connected to the right side of the drive sleeve 214 and is connected to the rack 22. The drive sleeve 219 is externally and movably connected to the inside of the drive sleeve 214. The driven gear 2113 is fixedly connected to the left side of the drive sleeve 219 and is connected to the drive gear 2110. The drive gear 216 is fixedly connected to the right side of the drive sleeve 219 and is connected to the rack 23. The drive shaft 218 is movably connected to the center of the drive sleeve 219. The center of the left side of the drive shaft 218 is fixedly connected to the right output shaft of the motor 2112. The drive gear 217 is fixedly connected to the right side of the drive shaft 218 and is connected to the rack 24.

[0026] Among them, motor 211, motor 4 2112 and motor 3 2111 are servo motors or stepper motors.

[0027] like Figure 5As shown, the rotating structure 5 includes a fixing screw 51, a fourth transmission gear 52, a second transmission shaft 53, a third transmission sleeve 54, a fifth transmission gear 55, a first bevel gear 56, a second bevel gear 57, and a rotating structure 58; the end of the first rack 22 is fixedly connected to the upper left side of the connecting seat 4 by several fixing screws 51; the third transmission sleeve 54 is externally movably connected to the center of the connecting seat 4, and the fifth transmission gear 55 is fixedly connected to the left side of the third transmission sleeve 54, and the fifth transmission gear 55 is connected to the third rack 24. Next, a bevel gear 56 is fixedly connected to the outside of the right side of the transmission sleeve 3 54; the transmission shaft 2 53 is externally and movably connected to the inside of the center of the transmission sleeve 3 54; a transmission gear 4 52 is fixedly connected to the left end of the transmission shaft 2 53, and the transmission gear 4 52 is connected to the rack 2 23; a bevel gear 2 57 is fixedly connected to the right end of the transmission shaft 2 53; the rotating structure 58 is located on the lower right side of the connecting seat 4, and the upper input end of the rotating structure 58 is connected to the bevel gear 1 56 and the bevel gear 2 57.

[0028] like Figure 6 As shown, the rotating structure 58 includes a movable seat 581, a transmission sleeve 582, a bevel gear 583, a bevel gear 584, a transmission shaft 585, a bevel gear 586, a bevel gear 587, a transmission shaft 588, a welding torch mounting block 589, a mounting hole 5810, and a locking screw 5811. The upper side of the movable seat 581 is movably connected to the lower right side of the connecting seat 4. The transmission sleeve 582 is fixedly connected to the center of the upper side of the movable seat 581, and a bevel gear 583 is provided on the upper side of the transmission sleeve 582, and the bevel gear 583 is connected to the bevel gear 56. The transmission shaft 585 is movably connected inside the transmission sleeve 582. A bevel gear 584 is fixedly connected to the upper end of the drive shaft 3 585, and the bevel gear 4 584 is connected to the bevel gear 2 57. A bevel gear 586 is fixedly connected to the lower end of the drive shaft 3 585. The drive shaft 4 588 is movably connected to the lower interior of the movable seat 581. A bevel gear 6 587 is fixedly connected inside the drive shaft 4 588, and the bevel gear 6 587 is connected to the bevel gear 586. A welding torch mounting block 589 is fixedly connected to the outer end of the drive shaft 4 588. The welding torch mounting block 589 has a mounting hole 5810 inside, and a locking screw 5811 is movably connected to the threaded hole on the side of the mounting hole 5810.

[0029] The locking screw 5811 is an internal hexagon screw.

[0030] The invention is used as follows: The invention has a reasonable and simple structure, low production cost, convenient installation, and complete functions. Before use, the operator first inserts the welding torch of the plasma arc welding machine into the mounting hole 5810 inside the welding torch mounting block 589 of the rotating structure 58 in the rotating structure 5. After adjusting the welding torch to a suitable initial angle, the operator tightens the locking screw 5811 (which is an internal hexagonal screw for precise tightening) in the threaded hole on the side of the mounting hole 5810, thus firmly fixing the welding torch to the welding torch mounting block 589 and completing the welding torch assembly preparation before welding. Then, the operator starts the motor 27 (which is a servo motor or stepper motor, capable of precise speed control) fixedly connected inside the upper side of the machine housing 1. The output shaft 27 drives the drive gear 26, which is fixedly connected to it, to rotate. Since the drive gear 26 meshes with the driven gear 25, which is fixedly connected to the left side of the rotating seat 3, the rotation of the drive gear 26 drives the driven gear 25 to rotate synchronously. This, in turn, causes the rotating seat 3 to rotate around the movable connection part on the right side of the machine housing 1. The rotation of the rotating seat 3 can drive the connecting seat 4, the rotating structure 5, and the welding torch connected to its right side to rotate synchronously, realizing a wide range of angle adjustment of the welding torch in the horizontal direction, adapting to the welding station requirements of different positions on the climbing frame. Meanwhile, the motors 211, 2111, and 2112 (all three are servo motors or stepper motors, which can be controlled independently or in linkage) are fixedly connected inside the lower side of the machine housing 1, realizing the connection. The telescopic movement of seat 4 is specifically linked as follows: the right output shaft of motor 211 drives the drive gear 212 to rotate. The drive gear 212 meshes with the driven gear 213 fixedly connected to the left side of transmission sleeve 214, driving transmission sleeve 214 to rotate within the center of the rotating seat 3. The transmission gear 215 fixedly connected to the right side of transmission sleeve 214 meshes with rack 22, thereby driving rack 22 to move within the guide hole on the right side of the rotating seat 3. Simultaneously, the right output shaft of motor 3111 drives the drive gear 2110 to rotate. The drive gear 2110 meshes with the driven gear 2113 fixedly connected to the left side of transmission sleeve 219, driving transmission sleeve 219 within transmission sleeve 214. The transmission sleeve 219 rotates, and the transmission gear 216 fixedly connected to the outside of the right side of the transmission sleeve 219 meshes with the rack 23, driving the rack 23 to move inside the guide hole; the output shaft on the right side of the motor 4 2112 is fixedly connected to the center of the left side of the transmission shaft 1 218, driving the transmission shaft 1 218 to rotate inside the center of the transmission sleeve 219; the transmission gear 3 217 fixedly connected to the outside of the right side of the transmission shaft 1 218 meshes with the rack 3 24, driving the rack 3 24 to move inside the guide hole; since the end of the rack 1 22 is fixedly connected to the connecting seat 4, the synchronous movement of the rack 1 22, rack 23, and rack 3 24 can drive the connecting seat 4 to extend and retract along the direction of the guide hole, thereby adjusting the distance between the welding torch and the welding surface of the climbing frame, adapting to the welding requirements of climbing frames of different thicknesses;By individually controlling the corresponding motor, the welding torch can rotate at multiple angles, meeting the operational requirements of complex welding positions on the climbing frame. Motor 4 (2112) is started independently, driving transmission shaft 1 (218) to rotate, which in turn drives transmission gear 3 (217) to mesh with rack 3 (24), causing rack 3 (24) to move inside the guide hole. Rack 3 (24) meshes with transmission gear 5 (55) fixedly connected to the left side of transmission sleeve 3 (54), which is movably connected inside the center of the connecting seat 4. When rack 3 (24) moves, it drives transmission gear 5 (55) to rotate, which in turn drives transmission sleeve 3 (54) to rotate synchronously. Bevel gear 1 (56) fixedly connected to the right side of transmission sleeve 3 (54) interacts with bevel gears on the upper outer side of transmission sleeve 4 (582), which is fixedly connected to the center of the upper side of the movable seat 581. When the three gears 583 mesh, the rotation of the first bevel gear 56 drives the third bevel gear 583 to rotate, which in turn drives the fourth transmission sleeve 582 and the movable seat 581 to rotate as a whole around the movable connection part on the lower right side of the connecting seat 4. The rotation of the movable seat 581 drives the welding torch mounting block 589 and the welding torch connected to its lower side to rotate synchronously, realizing the angle adjustment of the welding torch in the vertical plane. Meanwhile, the third motor 2111 is started, and the third motor 2111 drives the third driving gear 2110 to rotate, which in turn drives the driven gear 2113, the second transmission sleeve 219 and the second transmission gear 216 to rotate. The second transmission gear 216 meshes with the second rack 23, causing the second rack 23 to move inside the guide hole. The second rack 23 is fixedly connected to the fourth transmission gear 52 at the left end of the second transmission shaft 53. When the rack 23 moves, it drives the transmission gear 4 52 to rotate, which in turn drives the transmission shaft 2 53 to rotate synchronously inside the center of the transmission sleeve 3 54. The bevel gear 2 57, which is fixedly connected to the right end of the transmission shaft 2 53, meshes with the bevel gear 4 584, which is fixedly connected to the upper end of the transmission shaft 3 585. The rotation of bevel gear 2 57 drives bevel gear 4 584 and the transmission shaft 3 585 to rotate inside the transmission sleeve 4 582. The bevel gear 5 586, which is fixedly connected to the lower end of the transmission shaft 3 585, meshes with bevel gear 6 587, which is fixedly connected inside the transmission shaft 4 588. The rotation of bevel gear 586 drives bevel gear 6 587 and the transmission shaft 4 588 to rotate inside the lower side of the movable seat 581. The outer end of the transmission shaft 4 588 is fixedly connected to... The welding torch mounting block 589 rotates synchronously with the drive shaft 588, thereby driving the welding torch to rotate around the axis of the drive shaft 588, achieving precise adjustment of the welding angle of the welding torch; during the welding process, the start, stop and speed of motors 27, 211, 2111, and 2112 can be controlled in real time according to the requirements of the climbing frame welding trajectory. At the same time, through the mutual linkage and compensation between motors 27, 211, 2111, 2111, and 2112, the rotating seat 3, the connecting seat 4, the movable seat 581, and the welding torch mounting block 589 work together to drive the welding torch to move precisely along the welding part of the climbing frame, ensuring that the welded joint is flat and firm, and meeting the process requirements of climbing frame welding;After welding is completed, turn off all motors and the plasma arc welding machine. Loosen locking screw 5811 to remove the welding torch from mounting hole 5810, thus completing the operation.

[0031] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

[0034] The control method of this invention is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

Claims

1. A rotating mechanism for a climbing welding robot based on a plasma arc welding machine, characterized in that: It includes a housing (1), a drive mechanism (2), a rotating base (3), a connecting base (4), and a rotating structure (5); A rotating seat (3) is movably connected to the right side of the housing (1); The drive mechanism (2) is located inside the housing (1) and the rotating seat (3). The end of the drive mechanism (2) is fixedly connected to the connecting seat (4), and the connecting seat (4) is provided with a rotating structure (5), which is connected to the control end of the drive mechanism (2).

2. The rotating mechanism for a climbing welding robot based on a plasma arc welding machine according to claim 1, characterized in that: The drive mechanism (2) includes a drive structure (21), rack one (22), rack two (23), rack three (24), driven gear one (25), driving gear one (26) and motor one (27). The drive structure (21) is located inside the housing (1) on the left side, and the drive structure (21) is movably connected to the center of the rotating seat (3) on the right side. The racks 1 (22), 2 (23) and 3 (24) are all movably connected inside the guide hole provided on the right side of the rotating seat (3). The racks 1 (22), 2 (23) and 3 (24) are all connected to the corresponding output end on the right side of the drive structure (21). The end of the rack 1 (22) is fixedly connected to the connecting seat (4). The driven gear (25) is fixedly connected to the left side of the rotating seat (3) inside the center; The motor (27) is fixedly connected to the upper side of the housing (1). The output shaft of the motor (27) is fixedly connected to the drive gear (26), and the drive gear (26) is connected to the driven gear (25).

3. The rotating mechanism for a climbing welding robot based on a plasma arc welding machine according to claim 2, characterized in that: The motor 1 (27) is a servo motor or a stepper motor.

4. The rotating mechanism for a climbing welding robot based on a plasma arc welding machine according to claim 2, characterized in that: The drive structure (21) includes a second motor (211), a second driving gear (212), a second driven gear (213), a first transmission sleeve (214), a first transmission gear (215), a second transmission gear (216), a third transmission gear (217), a first transmission shaft (218), a second transmission sleeve (219), a third driving gear (2110), a third motor (2111), a fourth motor (2112), and a third driven gear (2113). The second motor (211), the fourth motor (2112) and the third motor (2111) are all fixedly connected to the lower side of the housing (1). The second drive gear (212) is fixedly connected to the right output shaft of the second motor (211), and the third drive gear (2110) is fixedly connected to the right output shaft of the third motor (2111). The transmission sleeve 1 (214) is externally movably connected to the center of the rotating seat (3). The driven gear 2 (213) is fixedly connected to the left side of the transmission sleeve 1 (214), and the driven gear 2 (213) is connected to the driving gear 2 (212). The transmission gear 1 (215) is fixedly connected to the right side of the transmission sleeve 1 (214), and the transmission gear 1 (215) is connected to the rack 1 (22). The transmission sleeve two (219) is externally movably connected to the inside of the transmission sleeve one (214). The driven gear three (2113) is fixedly connected to the left side of the transmission sleeve two (219), and the driven gear three (2113) is connected to the driving gear three (2110). The transmission gear two (216) is fixedly connected to the right side of the transmission sleeve two (219), and the transmission gear two (216) is connected to the rack two (23). The first transmission shaft (218) is movably connected to the center of the second transmission sleeve (219). The left center of the first transmission shaft (218) is fixedly connected to the right output shaft of the fourth motor (2112). The right side of the first transmission shaft (218) is fixedly connected to the third transmission gear (217), and the third transmission gear (217) is connected to the third rack (24).

5. The rotating mechanism for a climbing welding robot based on a plasma arc welding machine according to claim 4, characterized in that: The second motor (211), the fourth motor (2112), and the third motor (2111) are servo motors or stepper motors.

6. The rotating mechanism for a climbing welding robot based on a plasma arc welding machine according to claim 2, characterized in that: The rotating structure (5) includes a fixing screw (51), a fourth transmission gear (52), a second transmission shaft (53), a third transmission sleeve (54), a fifth transmission gear (55), a first bevel gear (56), a second bevel gear (57), and a rotating structure (58). The end of the rack (22) is fixedly connected to the upper left side of the connecting seat (4) by several fixing screws (51); The transmission sleeve three (54) is externally movably connected to the center of the connecting seat (4). The transmission sleeve three (54) is externally fixedly connected to the left side of the transmission gear five (55), and the transmission gear five (55) is connected to the rack three (24). The transmission sleeve three (54) is externally fixedly connected to the right side of the transmission gear one (56). The transmission shaft 2 (53) is externally movably connected to the center of the transmission sleeve 3 (54). The transmission gear 4 (52) is fixedly connected to the left end of the transmission shaft 2 (53), and the transmission gear 4 (52) is connected to the rack 2 (23). The bevel gear 2 (57) is fixedly connected to the right end of the transmission shaft 2 (53). The rotating structure (58) is located on the lower right side of the connecting seat (4), and the upper input end of the rotating structure (58) is connected to bevel gear one (56) and bevel gear two (57).

7. The rotating mechanism for a climbing welding robot based on a plasma arc welding machine according to claim 6, characterized in that: The rotating structure (58) includes a movable seat (581), a transmission sleeve four (582), a bevel gear three (583), a bevel gear four (584), a transmission shaft three (585), a bevel gear five (586), a bevel gear six (587), a transmission shaft four (588), a welding torch mounting block (589), a mounting hole (5810), and a locking screw (5811). The upper side of the movable seat (581) is movably connected to the lower right side of the connecting seat (4). The upper center of the movable seat (581) is fixedly connected to the transmission sleeve four (582), and the upper side of the transmission sleeve four (582) is provided with bevel gear three (583), and bevel gear three (583) is connected to bevel gear one (56). The transmission shaft three (585) is movably connected inside the transmission sleeve four (582). The upper end of the transmission shaft three (585) is fixedly connected to the bevel gear four (584), and the bevel gear four (584) is connected to the bevel gear two (57). The lower end of the transmission shaft three (585) is fixedly connected to the bevel gear five (586). The drive shaft four (588) is movably connected to the interior of the lower side of the movable seat (581). The drive shaft four (588) is fixedly connected to the interior of the bevel gear six (587), and the bevel gear six (587) is connected to the bevel gear five (586). The outer end of the drive shaft four (588) is fixedly connected to the welding gun mounting block (589). The welding torch mounting block (589) has a mounting hole (5810) inside, and a locking screw (5811) is movably connected in the threaded hole on the side of the mounting hole (5810).

8. The rotating mechanism for a climbing welding robot based on a plasma arc welding machine according to claim 7, characterized in that: The locking screw (5811) is an internal hexagon screw.

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