A mobile welding robot station

Abstract

The utility model relates to welding robot technical field, concretely relates to a movable welding robot workstation, including base and welding robot, the top of base is provided with frame, welding robot sets up in the inside of frame, the top of frame is located and is laid out with a plurality of can side swing lifting ring, the bottom of base is provided with buffer frame, buffer frame's both ends all are provided with buffer assembly, the both sides of base all are provided with magnet assembly, the both sides of base still all are laid out with gyro wheel assembly, still be provided with a plurality of leveling assembly on the base. The utility model is convenient for transfer, can be according to the production station of shield machine big diameter part and the corresponding removal, through with this workstation removes to the position department close shield machine big diameter part, thereby can realize the automatic welding work to shield machine big diameter part.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, specifically to a mobile welding robot workstation. Background Technology

[0002] Key components of a tunnel boring machine (TBM) include the cutterhead, shield body, drive box, and drive disc. These components are characterized by thick plates (over 90% of the material is thicker than 40mm), high welding quality requirements (100% UT inspection of bevel penetration welds, meeting Level 2 requirements of GB / T11345-2013 after welding, and magnetic particle testing meeting Level 2 requirements of GB / T26952-2011), and a large volume of welding. Therefore, the requirements for welders are more stringent, demanding high-level welding skills and stability. If a weld fails to meet the flaw detection requirements, the defective area must be removed using carbon arc gouging, which increases the stress on the weld.

[0003] With the widespread application of welding robots, automated welding technology is gradually being applied to the tunnel boring machine (TBM) field. For example, welding robots are used in the manufacturing of TBM drive boxes and cutterhead components to achieve multi-layer, multi-pass welding. However, with the diversification of TBM component forms and functions, the diameter of TBM components is also increasing according to project needs, with some components reaching 16 meters. Compared to the manufacturing of conventional TBM components, the manufacturing process for large-diameter TBM components is more complex and heavier. In the current technology for manufacturing large-diameter TBM components, the excessive weight and numerous production stations make it inconvenient to hoist and transport these components, or even lack the necessary transport capabilities, preventing the use of welding robots for welding these components. Summary of the Invention

[0004] This invention addresses the problem that welding robots cannot be used to weld large-diameter components of tunnel boring machines (TBMs) in the prior art. It provides a mobile welding robot workstation that is easy to transport and can be moved according to the production station of the large-diameter TBM components. By moving the workstation to a position close to the large-diameter TBM components, automated welding of the large-diameter TBM components can be achieved.

[0005] To achieve the above objectives, the technical solution of this utility model is: a mobile welding robot workstation, including a base and a welding robot, wherein a frame is provided on the top of the base, and the welding robot is disposed inside the frame; multiple side-swinging lifting rings are arranged on the top of the frame. The workstation can be easily moved by cooperating with the side-swinging lifting rings and lifting fixtures.

[0006] The base has symmetrical forklift holes, and a buffer frame is located below the base, with buffer components at both ends of the buffer frame. Magnet assemblies are located on both sides of the base, and roller assemblies are also evenly distributed on both sides. Multiple leveling components are also provided on the base. When the workstation is placed on the ground, the buffer components cushion the workstation; the magnet assemblies also cushion the workstation, and when the workstation is working on a work platform, the magnet assemblies further improve its stability; the roller assemblies facilitate short-distance movement of the workstation, and the leveling components level the workstation to prevent it from tilting due to uneven ground.

[0007] Furthermore, the frame also houses a control cabinet, welding machine, power cabinet, and hand-cranked wire take-up machine. The welding robot and its auxiliary equipment are integrated within the frame, enabling the welding robot to perform welding work on large-diameter components of the tunnel boring machine.

[0008] Furthermore, inspection doors and enclosure doors are provided on all four sides of the frame, and these doors are detachably connected to the frame. The enclosure doors serve to enclose the welding robot and its auxiliary equipment within the frame, while the inspection doors facilitate maintenance of the welding robot and its auxiliary equipment.

[0009] Furthermore, the side-swinging lifting ring includes a fixing pin, a U-shaped seat, and a lifting ring. The fixing pin is vertically disposed on the top of the frame, the U-shaped seat is rotatably sleeved on the fixing pin, and the lifting ring is sleeved on the U-shaped seat. The cooperation between the lifting fixture and the lifting ring facilitates the lifting and transportation of the workstation.

[0010] Furthermore, a mounting base fixed to the base is provided above the buffer assembly; the buffer assembly includes a buffer plate, buffer guide rods and a buffer spring, the buffer plate is fixedly connected to the buffer frame, a plurality of buffer guide rods are arranged on the top of the buffer plate, and a buffer base plate is fixedly provided at the bottom of the buffer plate.

[0011] Furthermore, the upper end of the buffer guide rod passes through the mounting base and is slidably connected to it, and a limit nut is provided at the upper end of the buffer guide rod; the buffer spring is fitted onto the buffer guide rod and is located between the buffer plate and the mounting base. Through the cooperation of the buffer guide rod with the mounting base and the buffer plate, and under the action of the buffer spring, the workstation is buffered upon landing.

[0012] Furthermore, the magnet assembly includes a support, a magnet, and a second buffer spring. The support is fixedly connected to the base, and multiple guide rods are vertically arranged on the support. The guide rods are slidably connected to the support, and the lower end of the guide rod is connected to the magnet. A second limit nut is provided at the upper end of the guide rod. The second buffer spring is sleeved on the guide rod and located between the support and the magnet. Through the cooperation of the guide rod, the support, and the magnet, and under the action of the second buffer spring, the workstation provides a cushioning effect when it lands. At the same time, the magnet can be attracted to the work platform, improving the stability of the workstation.

[0013] Furthermore, the leveling assembly is located at the corner of the base. The leveling assembly includes an L-shaped seat, an adjusting screw, and adjusting shims. The L-shaped seat is fixedly connected to the base. The adjusting screw is vertically mounted on the L-shaped seat and threadedly connected to it. A locking nut is located at the upper end of the adjusting screw, and the adjusting shims are located at the lower end. The adjusting shims provide support for the workstation. Rotating the adjusting screw adjusts the shims, thereby achieving a leveling effect on the workstation and preventing it from tilting.

[0014] Furthermore, the roller assembly includes two fixed plates, a rotating seat, a tension spring, and rollers. Each of the two fixed plates has a hanging pin on its upper inner side, and a positioning pin is provided between the two fixed plates. A sleeve is fixedly provided on the top of the vertical plate of the rotating seat, and the sleeve is rotatably sleeved on the positioning pin.

[0015] Furthermore, each of the two side plates of the rotating base is provided with a second hanging pin, and the two ends of the tension spring are respectively hung on the first and second hanging pins. The rollers are located at the bottom of the rotating base. The workstation can be moved short distances by means of the rollers.

[0016] The beneficial effects of this utility model through the above technical solution are as follows:

[0017] 1. This utility model has a reasonable structure, good performance, and is easy to transport. It is not fixed to a certain work position and can be moved according to the production work position of the large-diameter components of the tunnel boring machine. By moving the workstation to a position close to the large-diameter components of the tunnel boring machine, the automated welding work of the large-diameter components of the tunnel boring machine can be realized.

[0018] 2. This utility model, through the combination of a side-swinging lifting ring and lifting fixtures, allows for the transfer of workstations between different workshops by using a lifting method when the workstations are far apart within the same workshop; by inserting the forklift arm into the forklift hole and using the forklift arm to lift the workstations, the workstations can be transferred between different workshops by using a forklift.

[0019] 3. The buffer assembly of this utility model, through the cooperation of the buffer guide rod, the mounting base and the buffer plate, and the action of the buffer spring, when the workstation is hoisted or forked, the buffer base plate contacts the ground when the workstation lands, and the buffer spring is compressed under the action of the workstation's gravity, thus buffering the landing action of the workstation.

[0020] 4. The magnetic assembly of this utility model, through the cooperation of the guide rod, the support and the magnet, and the action of the buffer spring, plays a buffering role when the workstation lands. At the same time, the magnet can be attracted to the work platform, improving the stability of the workstation. Furthermore, by rotating the adjusting screw of the leveling assembly, the adjusting shims can be adjusted to level the workstation, thereby avoiding the workstation from tilting due to uneven ground.

[0021] 5. This utility model allows for short-distance transport of the workstation via a roller assembly. When the workstation is transported by hoisting or forklifting, the rollers can be lifted at one end of the rotating seat through the cooperation of the sleeve and the positioning pin, as well as under the action of the tension spring, preventing the rollers from affecting the functions of the buffer assembly, magnet assembly, and leveling assembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a mobile welding robot workstation according to this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of a mobile welding robot workstation according to this utility model. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of a mobile welding robot workstation according to this utility model. Figure 2 ;

[0025] Figure 4 This is a structural schematic diagram of the base of this utility model;

[0026] Figure 5 This is a schematic diagram of the hoisting structure of this utility model;

[0027] Figure 6 yes Figure 1 Enlarged structural diagram at point A;

[0028] Figure 7 yes Figure 1 A magnified structural diagram at point B in the middle.

[0029] The attached diagram is labeled as follows: 1 is the base, 2 is the frame, 3 is the welding robot, 4 is the control cabinet, 5 is the welding machine, 6 is the power cabinet, 7 is the hand-cranked wire take-up machine, 8 is the inspection door, 9 is the enclosure door, 10 is the fixing pin, 11 is the U-shaped seat, 12 is the lifting ring, 13 is the forklift hole, 14 is the buffer frame, 15 is the buffer plate, 16 is the buffer base plate, 17 is the buffer guide rod, 18 is the first limit nut, 19 is the first buffer spring, 20 is the mounting seat, 21 is the L-shaped seat, 22 is the adjusting screw, 23 is the adjusting shim, 24 is the fixing plate, 25 is the first hanging pin, 26 is the positioning pin, 27 is the rotating seat, 28 is the sleeve, 29 is the tension spring, 30 is the second hanging pin, 31 is the roller, 32 is the support, 33 is the second buffer spring, 34 is the magnet, and 35 is the second limit nut. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0031] like Figures 1 to 7 As shown, a mobile welding robot workstation includes a base 1 and a welding robot 3. A frame 2 is mounted on top of the base 1, and the welding robot 3 is housed inside the frame 2. Multiple side-swinging lifting rings are arranged on the top of the frame 2. In this embodiment, the frame 2 includes a base plate at its bottom, and the welding robot 3 is bolted to the top of the base plate of the frame 2. The frame 2 has a square structure, and two sets of side-swinging lifting rings are installed on the top of the frame 2. Each set includes three side-swinging lifting rings, which are spaced apart on the top of the frame 2. When the workstation is transferred between different locations within the same workshop, a lifting fixture is used in conjunction with the side-swinging lifting rings, such as... Figure 5 As shown, the hoisting fixture includes a hoisting frame, with multiple chains and hooks connected to the chains at the bottom. The hooks are attached to side-swinging lifting rings, and a hoisting hook is installed at the center of the top of the hoisting frame. The workstation can be moved by a crane. The hoisting fixture chains are in a vertical hoisting state and do not interfere with the welding robot's robotic arm.

[0032] In this embodiment, the welding robot arm has a coverage radius of two meters, and the robot body is a six-axis robotic arm. Multiple joints work together to achieve multi-layer, multi-pass welding, including flat, horizontal, and vertical welding. A counterweight is fixedly installed at the bottom center of frame 2 to ensure the workstation is centered during hoisting and to prevent uneven weight distribution.

[0033] The base 1 has symmetrically arranged forklift holes 13, and a buffer frame 14 is provided below the base 1. Both ends of the buffer frame 14 are equipped with buffer components. Magnet components are provided on both sides of the base 1, and roller assemblies are also evenly distributed on both sides of the base 1. Multiple leveling components are also provided on the base 1. In this embodiment, there are two forklift holes 13, and the distance between the two forklift holes 13 is 1.2 meters. When transferring the workstation between different workshops, the workstation can be transferred by inserting the forklift arm into the forklift hole 13 and using the forklift arm to lift it. The buffer components cushion the workstation when it lands. There are two magnet components, each fixed to the middle of one side of the base 1. The magnet components cushion the workstation when it lands and improve its stability. The roller assemblies allow for short-distance transfer of the workstation, and the leveling components level the workstation to prevent it from tilting due to uneven ground.

[0034] The frame 2 also houses a control cabinet 4, a welding machine 5, a power cabinet 6, and a hand-cranked cable reel 7. In this embodiment, the control cabinet 4, welding machine 5, power cabinet 6, and hand-cranked cable reel 7 are bolted to the top of the base plate of the frame 2. The structure and working principle of the control cabinet 4, welding machine 5, power cabinet 6, and hand-cranked cable reel 7 are existing technologies and will not be described in detail here. The control cabinet 4 is the nerve center of the welding robot system, including computer hardware, software, and some dedicated circuits, responsible for processing all information and controlling all actions of the welding robot during its operation. The power cabinet 6 is an electrical control cabinet assembly that provides power to the normal operation of the welding robot. The hand-cranked cable reel 7 can quickly and effortlessly reel cables into the workstation. The hand-cranked cable reel includes a tripod and a reel. A bearing with a seat is fixedly installed on the top of the tripod, and a rotating shaft is installed at the center of one side of the reel. The rotating shaft and the bearing with a seat are interference-fitted. A crank is installed at the edge of the reel. The reel can quickly and effortlessly reel 25-meter-long cables into the workstation.

[0035] The frame 2 is equipped with inspection doors 8 and enclosure doors 9 on all four sides, and the inspection doors 8 and enclosure doors 9 are detachably connected to the frame 2. In this embodiment, the lower part of the frame 2 is equipped with fixing seats and magnet seats. The fixing seats include a square tube fixed to the frame 2, and a circular tube is fixedly installed inside the square tube. The lower ends of the vertical rods on both sides of the enclosure door 9 are respectively inserted into the two circular tubes of the fixing seats. The lower end of the vertical rod on one side of the inspection door 8 is inserted into the circular tube of one of the fixing seats. A buckle is installed at the top of the frame 2 corresponding to the position of the magnet seat. The buckle is a Yiheda buckle, which locks the other side of the inspection door 8 and facilitates opening or closing the inspection door. The magnet seat includes a square tube fixed to the frame 2 and a circular tube fixed inside the square tube. A fixing magnet is installed inside the circular tube. The fixing magnet attracts the other side of the inspection door 8, further closing and locking the inspection door 8.

[0036] The side-swinging lifting ring includes a fixing pin 10, a U-shaped seat 11, and a lifting ring 12. The fixing pin 10 is vertically disposed on the top of the frame 2, the U-shaped seat 11 is rotatably sleeved on the fixing pin 10, and the lifting ring 12 is sleeved on the U-shaped seat 11. In this embodiment, the fixing pin 10 is threadedly connected to the frame 2, a fixing tube is installed inside the U-shaped seat 11, the fixing tube is sleeved on the fixing pin 10, and pin holes matching the fixing pin 10 are opened at the top and bottom of the U-shaped seat 11.

[0037] A mounting base 20 fixed to the base 1 is provided above the buffer assembly; the buffer assembly includes a buffer plate 15, buffer guide rods 17, and a buffer spring 19. The buffer plate 15 is fixedly connected to the buffer frame 14. Multiple buffer guide rods 17 are arranged on the top of the buffer plate 15, and a buffer base plate 16 is fixedly provided on the bottom of the buffer plate 15. In this embodiment, four buffer guide rods 17 are welded and fixed to the top of the buffer plate 15.

[0038] The upper end of the buffer guide rod 17 passes through the mounting base 20 and is slidably connected to the mounting base 20. A limit nut 18 is provided at the upper end of the buffer guide rod 17. The buffer spring 19 is sleeved on the buffer guide rod 17 and is located between the buffer plate 15 and the mounting base 20. In this embodiment, the cross-section of the mounting base 20 is L-shaped. The limit nut 18 is threadedly connected to the buffer guide rod 17, which serves to limit the movement and prevent the buffer assembly from falling off. When the workstation is placed on the ground, the buffer base plate 16 first contacts the ground. Then, under the weight of the workstation, the mounting base 20 presses down on the buffer spring 19. The mounting base 20 slides on the buffer guide rod 17 to buffer the workstation that is landing.

[0039] The magnet assembly includes a support 32, a magnet 34, and a second buffer spring 33. The support 32 is fixedly connected to the base 1. Multiple guide rods are vertically arranged on the support 32, and the guide rods are slidably connected to the support 32. The lower end of each guide rod is connected to the magnet 34, and the upper end of each guide rod is provided with a limiting nut 35. The second buffer spring 33 is sleeved on the guide rod and located between the support 32 and the magnet 34. In this embodiment, there are four guide rods. The limiting nut 35 is threadedly connected to the guide rod, serving to limit the guide rod and prevent it from falling off the support 32. When the workstation is placed on the ground, the magnet 34 contacts the ground. Then, under the weight of the workstation, the support 32 presses down on the second buffer spring 33, and the support 32 slides on the guide rod. When the workstation is on a work platform, the magnet 34 adheres to the work platform, improving the stability of the workstation.

[0040] The leveling assembly is located at the corner of the base 1. The leveling assembly includes an L-shaped base 21, an adjusting screw 22, and an adjusting shim 23. The L-shaped base 21 is fixedly connected to the base 1. The adjusting screw 22 is vertically mounted on the L-shaped base 21 and threadedly connected to it. A locking nut is located at the upper end of the adjusting screw 22, and the adjusting shim 23 is located at the lower end. In this embodiment, four leveling assemblies are used. Rotating the adjusting screw 22 adjusts the adjusting shim 23, achieving the leveling effect for the workstation. The lower surface of the adjusting shim 23 is higher than the lower surface of the magnet 34 and the buffer base plate 16, ensuring that the buffer assembly and magnet assembly can provide cushioning. When the workstation is on the ground, the leveling assembly can raise its height, eliminating the force on the buffer springs 19 and 33.

[0041] The roller assembly includes two fixed plates 24, a rotating seat 27, a tension spring 29, and rollers 31. Each of the two fixed plates 24 has a hanging pin 25 on its inner upper part, and a positioning pin 26 is provided between the two fixed plates 24. A sleeve 28 is fixedly provided on the top of the vertical plate of the rotating seat 27, and the sleeve 28 is rotatably sleeved on the positioning pin 26.

[0042] The rotating base 27 has two hanging pins 30 at the ends of its two side plates. The two ends of the tension spring 29 are respectively hung on the first hanging pin 25 and the second hanging pin 30. The roller 31 is located at the bottom of the rotating base 27. In this embodiment, there are four roller assemblies, and each roller assembly has two tension springs 29. When the workstation is hoisted or forked, the tension springs 29 are respectively hung on the first hanging pin 25 and the second hanging pin 30. During this process, the sleeve 28 rotates on the positioning pin 26, and the end of the rotating base 27 away from the base 1 is lifted upward. The rotating base 27 drives the roller 31 to be lifted upward, preventing the roller 31 from affecting the function of the buffer assembly, magnet assembly, and leveling assembly. When the workstation is transported using the roller assembly, one end of the tension spring 29 is removed from the first hanging pin 25, and the rotating base 27 is bolted to the base 1. Then, the workstation can be transported short distances using the roller 31.

[0043] When using this invention, if the workstation is to be transferred between different workshops, the hook at the bottom of the hoisting tool chain is attached to the lifting ring 12. Then, the workstation can be transferred by the cooperation of the crane and the hoisting tool. If the workstation is to be transferred between different workshops, the forklift arm is inserted into the forklift hole 13 and the workstation is lifted by the forklift arm. Then, the workstation can be transferred by the forklift and moved to a position close to the large-diameter component of the tunnel boring machine for welding work.

[0044] When the workstation is hoisted or forked and placed on the ground, the buffer base plate 16 first contacts the ground. Then, under the weight of the workstation, the mounting base 20 presses down on the buffer spring 19, and the mounting base 20 slides on the buffer guide rod 17. During this process, the magnet 34 contacts the ground. Then, under the weight of the workstation, the support 32 presses down on the buffer spring 33, and the support 32 slides on the guide rod to buffer the workstation. At the same time, when the workstation is working on the work platform, the magnet 34 is attracted to the work platform, improving the stability of the workstation.

[0045] If the workstation becomes tilted, it can be leveled using four leveling components. Specifically, the adjusting screws 22 of the leveling components are rotated to adjust the support height of the adjusting shims 23 of the four leveling components at the four corners of the base 1.

[0046] When using roller assemblies for short-distance transport of the workstation, remove one end of the tension spring 29 of each roller assembly from the hanging pin 25. At this time, the end of the rotating seat 27 away from the base 1 rotates downward, and the sleeve 28 rotates on the positioning pin 26. Then, the rotating seat 27 is fixed to the base 1 with bolts. The workstation can then be transported short distances via the rollers 31 to a position close to the large-diameter components of the tunnel boring machine for welding work.

[0047] The embodiments described above are merely preferred embodiments of the utility model and are not intended to limit the scope of the utility model. Therefore, all equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent application should be included within the scope of the utility model patent application.

Claims

1. A mobile welding robot workstation, comprising a base (1) and a welding robot (3), characterized in that, The base (1) is provided with a frame (2) on top, and the welding robot (3) is located inside the frame (2); the top of the frame (2) is provided with multiple side-swinging lifting rings. The base (1) is symmetrically provided with forklift holes (13), and a buffer frame (14) is provided below the base (1). Both ends of the buffer frame (14) are provided with buffer components. Both sides of the base (1) are provided with magnet components, and both sides of the base (1) are also provided with roller components. The base (1) is also provided with multiple leveling components.

2. The mobile welding robot workstation according to claim 1, characterized in that, The frame (2) also contains a control cabinet (4), a welding machine (5), a power cabinet (6), and a hand-cranked take-up machine (7).

3. The mobile welding robot workstation according to claim 1, characterized in that, Inspection doors (8) and enclosure doors (9) are provided on all four sides of the frame (2), and the inspection doors (8) and enclosure doors (9) are detachably connected to the frame (2).

4. The mobile welding robot workstation according to claim 1, characterized in that, The side-swinging lifting ring includes a fixing pin (10), a U-shaped seat (11) and a lifting ring (12). The fixing pin (10) is vertically set on the top of the frame (2). The U-shaped seat (11) is rotatably sleeved on the fixing pin (10). The lifting ring (12) is sleeved on the U-shaped seat (11).

5. A mobile welding robot workstation according to claim 1, characterized in that, The buffer assembly is provided with a mounting seat (20) fixed on the base (1) above it; the buffer assembly includes a buffer plate (15), a buffer guide rod (17) and a buffer spring (19). The buffer plate (15) is fixedly connected to the buffer frame (14). Multiple buffer guide rods (17) are arranged on the top of the buffer plate (15). A buffer base plate (16) is fixedly provided on the bottom of the buffer plate (15).

6. A mobile welding robot workstation according to claim 5, characterized in that, The upper end of the buffer guide rod (17) passes through the mounting base (20) and is slidably connected to the mounting base (20). A limit nut (18) is provided at the upper end of the buffer guide rod (17). The buffer spring (19) is sleeved on the buffer guide rod (17) and located between the buffer plate (15) and the mounting base (20).

7. A mobile welding robot workstation according to claim 1, characterized in that, The magnet assembly includes a support (32), a magnet (34), and a second buffer spring (33). The support (32) is fixedly connected to the base (1). Multiple guide rods are vertically arranged on the support (32). The guide rods are slidably connected to the support (32). The lower end of the guide rod is connected to the magnet (34). The upper end of the guide rod is provided with a second limit nut (35). The second buffer spring (33) is sleeved on the guide rod and located between the support (32) and the magnet (34).

8. A mobile welding robot workstation according to claim 1, characterized in that, The leveling assembly is located at the corner of the base (1). The leveling assembly includes an L-shaped seat (21), an adjusting screw (22), and an adjusting shim (23). The L-shaped seat (21) is fixedly connected to the base (1). The adjusting screw (22) is vertically mounted on the L-shaped seat (21) and threadedly connected to the L-shaped seat (21). The upper end of the adjusting screw (22) is provided with a locking nut, and the lower end is provided with the adjusting shim (23).

9. A mobile welding robot workstation according to claim 1, characterized in that, The roller assembly includes two fixed plates (24), a rotating seat (27), a tension spring (29), and a roller (31). Each of the two fixed plates (24) has a hanging pin (25) on its inner upper part, and a positioning pin (26) is provided between the two fixed plates (24). A sleeve (28) is fixedly provided on the top of the vertical plate of the rotating seat (27), and the sleeve (28) is rotatably sleeved on the positioning pin (26).

10. A mobile welding robot workstation according to claim 9, characterized in that, The two side plates of the rotating seat (27) are provided with two hanging pins (30), and the two ends of the tension spring (29) are respectively hung on the first hanging pin (25) and the second hanging pin (30). The roller (31) is located at the bottom of the rotating seat (27).

Images