Movable welding operation vehicle for construction site

Abstract

The invention belongs to the technical field of welding operation, and particularly provides a construction site movable welding operation vehicle which comprises a vehicle body, a frame body, two crawler belt assemblies and two driving motors. The moving assembly is slidably arranged on the frame body, and a power part is arranged on one side of the moving assembly; the lifting assembly is fixedly arranged on the moving assembly, one end of the lifting assembly is a lifting end moving in the height direction of the vehicle body, a connecting plate is rotationally arranged at the lifting end, and an adjusting rod used for keeping the connecting plate in a horizontal state is arranged on the connecting plate; the welding manipulator is fixedly arranged at the top end of the connecting plate; the end, away from the welding mechanical arm, of the frame body is provided with a containing space, and the gas tank transport vehicle is placed in the containing space. The trafficability on the complex terrain of the construction site is enhanced by adopting the crawler conveying vehicle structure, the welding mechanical arm can conduct two-dimensional position adjustment in the lifting and horizontal directions by arranging the moving assembly to be matched with the lifting assembly, and the efficiency of high-altitude welding operation is improved.

Description

Technical Field

[0001] This application belongs to the field of welding operation technology, and more specifically, relates to a mobile welding operation vehicle for construction sites. Background Technology

[0002] In the construction process, welding is a core technology in steel structure installation, pipeline connection, and equipment fixing. For example, in the construction of high-rise building frames, a large number of steel beam and column joints need to be welded; in municipal pipeline projects, circumferential welding of long-distance pipelines needs to be completed; and in bridge construction, high-intensity operations such as butt welding of thick plates are involved.

[0003] However, traditional welding methods have significant limitations, especially in complex construction environments where they cannot meet the demands of modern construction. Specifically, these limitations manifest in the following ways: 1. Poor adaptability to terrain and insufficient passability. Construction sites generally have complex road conditions such as potholes and mud, which makes it difficult for equipment to move on uneven ground. Sometimes, manual assistance is required to overcome obstacles, which not only consumes manpower but also easily causes safety hazards due to equipment tipping over. 2. Welding robots are used for some welding operations, but most of them are fixed on trolleys or frames. Welding operations rely solely on the robotic arm, which has limited horizontal and vertical position adjustment capabilities. When welding steel structures of different heights or long pipelines, it is necessary to frequently adjust the overall position of the equipment or replace it with a larger welding robot, which affects welding efficiency. 3. Welding operations rely on gas cylinders (such as oxygen cylinders and acetylene cylinders) for energy. Generally, it is necessary to manually move and fix the gas cylinders to the equipment. This is not only labor-intensive, but also prone to explosion risks due to collisions or tipping during the handling process. Summary of the Invention

[0004] Based on the above-mentioned technical problems, this application provides a mobile welding operation vehicle for construction sites to solve the problems of insufficient passability of welding equipment, limited horizontal and vertical position adjustment capability of the robotic arm during welding operations, and high labor intensity in the process of transporting gas cylinders.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a mobile welding operation vehicle for construction sites is provided, comprising: a vehicle body, including a frame and track assemblies rotatably disposed on both sides of the frame; a moving assembly, slidably disposed on the frame, with a power unit for driving the moving assembly to slide on one side; a lifting assembly, fixedly disposed on the moving assembly, one end of the lifting assembly being a lifting end that moves along the height direction of the vehicle body, the lifting end being rotatably disposed with a connecting plate, the connecting plate being provided with an adjusting rod for keeping the connecting plate in a horizontal state; a welding robot, fixedly disposed at the top of the connecting plate; and a gas tank transport vehicle, with a placement space provided at the end of the frame away from the welding robot, the gas tank transport vehicle being placed in the placement space.

[0006] Furthermore, the moving component includes a slide rail fixed on the frame and a bracket slidably mounted on the slide rail. The power unit includes a rack fixed on the slide rail and a first motor fixed on one side of the bracket. The output end of the first motor passes through the bracket and is fixed with a first gear, which meshes with the rack.

[0007] Furthermore, the bracket includes two support plates, which are arranged at an axial distance along the slide rail. Each support plate has two rollers rotatably connected to its two ends, and the two rollers are clamped on both sides of the slide rail.

[0008] Furthermore, the top ends of the two rollers are respectively fixed with shafts, the top ends of the shafts pass through the bracket and are rotatably connected to the bracket, one of the shafts is coaxial with the corresponding roller, and the other shaft is not coaxial with the corresponding roller. The bracket is provided with a wrench for driving the other shaft to rotate, and a stop for limiting the rotation of the wrench.

[0009] Furthermore, the top end of another shaft passes through the top surface of the bracket and is fixedly provided with a second gear. The bottom end of the wrench is provided with a groove that matches the second gear. The groove covers the outside of the second gear. The wrench is provided with multiple through holes, which are evenly arranged along the circumference of the wrench. The top surface of the bracket is provided with a fixing hole. The stop part includes bolts, which pass through the corresponding through holes in sequence and are screwed into the fixing holes.

[0010] Furthermore, the lifting assembly includes a base plate and a rotating plate. The base plate is fixedly mounted on the moving assembly. One end of the rotating plate is rotatably connected to one end of the base plate. The other end of the rotating plate is rotatably provided with a first rotating shaft. One end of the base plate is rotatably provided with an electric telescopic cylinder. The output end of the electric telescopic cylinder is fixedly connected to the first rotating shaft.

[0011] Furthermore, there are two adjusting rods, which are located on both sides of the base plate. The two ends of each adjusting rod are rotatably connected to one end of the base plate and the end of the connecting plate away from the rotating plate.

[0012] Furthermore, the placement space is a rectangular space formed by a baffle fixed to the frame, two side plates, and a pedal. The pedal is located on the side of the placement space away from the welding robot. The bottom end of the pedal is hinged to the frame. The height of the pedal is greater than the distance between the frame and the bottom surface. The two side plates are located on both sides of the pedal. Each of the two side plates is provided with a locking assembly for restricting the rotation of the pedal.

[0013] Furthermore, the locking assembly includes locking rods respectively fixed on both sides of the pedal, each side plate is provided with a groove for accommodating the corresponding locking rod, and a screw is screwed to the top surface of each side plate, with the bottom end of the screw passing through the groove.

[0014] Compared with the prior art, the advantages of the mobile welding vehicle for construction sites provided in this application are: 1. The vehicle body adopts a tracked transporter structure, which enhances its passability on complex terrains of construction sites, ensuring that the work vehicle can quickly and accurately reach various locations on the construction site, providing convenience for welding operations. By setting up a moving component, the welding robotic arm can move horizontally while the vehicle body remains stationary, covering longer weld seams with a single positioning, greatly reducing the number of vehicle body adjustments, significantly improving welding operation efficiency, and shortening the construction period for welding large structures. At the same time, in conjunction with the lifting component, the welding robotic arm can be adjusted in both lifting and horizontal directions, quickly reaching different welding points without multiple adjustments to the vehicle body position, adapting to complex high-altitude working environments, and improving the efficiency of high-altitude welding operations. 2. By setting up a foot pedal in the placement space in conjunction with the gas tanker transport vehicle, the gas tanker transport vehicle loaded with gas tanks can be easily pushed into the placement space by tilting the foot pedal. Then, the rotation of the foot pedal is restricted by the locking component, which makes it convenient for staff to transport the gas tanker transport vehicle, reduces the labor intensity of the staff, and at the same time ensures the stability of the gas tanker transport vehicle in the placement space, prevents the gas tanker transport vehicle from leaving the placement space and causing safety accidents, and improves the safety of the equipment. 3. By setting one of the shafts eccentrically to the roller, and using a wrench and a stop, the moving components can be quickly disassembled, improving the maintenance and repair efficiency of the equipment and making it easier to adjust and replace parts according to different welding requirements. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of one side of a mobile welding vehicle for construction sites according to the present invention. Figure 2 This is a perspective view of the other side of a mobile welding vehicle for construction sites according to the present invention. Figure 3 This is a schematic diagram of the installation structure of the moving component and the lifting component of the present invention; Figure 4 This is an exploded structural diagram of the support structure of the present invention; Figure 5 for Figure 1 Enlarged view of part A.

[0017] Explanation of reference numerals in the attached figures: 1. Vehicle body; 11. Frame; 12. Track assembly; 13. Drive motor; 14. Welding wire rack; 15. Control system; 16. Power supply unit; 17. Fire extinguisher; 18. Storage space; 181. Baffle; 182. Side plate; 1821. Groove; 1822. Screw; 183. Pedal; 1831. Locking bar; 2. Moving component; 21. Slide rail; 22. Bracket; 221. Support plate; 2211. Fixing hole; 222. Fixing plate; 223. Roller; 224. Shaft; 225. Second gear; 226. Wrench; 2261. Through hole; 227. Bolt; 23. Rack; 24. First motor; 3. Lifting assembly; 31. Base plate; 32. Rotating plate; 33. First rotating shaft; 34. Electric telescopic cylinder; 35. Connecting plate; 36. Adjusting rod; 4. Welding robot; 5. Gas tanker transport vehicle. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application 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 limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0022] 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.

[0023] Please refer to the following: Figures 1 to 5 As shown, the following describes a mobile welding vehicle for construction sites provided by an embodiment of this application. The mobile welding vehicle for construction sites of this invention includes a vehicle body 1, a moving assembly 2, a lifting assembly 3, a welding robot 4, and a gas tank transport vehicle 5. The vehicle body 1 is a tracked transport vehicle as in the prior art, facilitating its movement in complex road conditions at construction sites. Specifically, the vehicle body 1 includes a frame 11 and track assemblies 12 rotatably mounted on both sides of the frame 11. Each track assembly 12 includes multiple pulleys (not shown in the figure) rotatably mounted on the vehicle body 1 and tracks wound around the outside of the pulleys. Two drive motors 13 are respectively provided on both sides of the frame 11 to drive the two track assemblies 12 to rotate. It should be noted that, in implementation, the vehicle body 1 can be modified from an existing tracked chassis. Specifically, the vehicle body 1 can be driven by two drive motors 13 to drive the two track assemblies 12 to achieve forward, backward, and turning movements, which will not be elaborated further here. In addition, the vehicle body 1 is also equipped with a welding wire rack 14, a control system 15, and a power supply device 16 as in the prior art, which will not be described in detail here. Preferably, the vehicle body 1 is also equipped with a fire extinguisher placement area for placing fire extinguishers 17.

[0024] The welding robot 4 is existing technology and is mounted on the vehicle body 1 for welding operations during construction. The welding robot 4 is connected to the vehicle body 1 via a lifting assembly 3 and a moving assembly 2, so that the moving assembly 2 drives the welding robot 4 to move horizontally, and the lifting assembly 3 drives the welding connector to move vertically along the vehicle body 1.

[0025] In this embodiment, the movable component 2 is slidably mounted on the frame 11, and a power unit for driving the movable component 2 to slide is provided on one side. Specifically, the movable component 2 includes a slide rail 21 and a bracket 22. The slide rail 21 is fixedly mounted on the frame 11, and the bracket 22 is slidably connected to the slide rail 21. The power unit is used to drive the bracket 22 to slide along the axial direction of the slide rail 21. The power unit includes a rack 23 and a first motor 24. The rack 23 is fixed on the top surface of the slide rail 21, and the axial direction of the rack 23 is parallel to the axial direction of the slide rail 21. The first motor 24 is fixed on one side of the bracket 22, and the output end of the first motor 24 passes through the bracket 22 and is fixed with a first gear (not shown in the figure). The first gear meshes with the rack 23. In implementation, the first motor 24 starts, driving the first gear to rotate. Since the first gear meshes with the rack 23 on the slide rail 21, it drives the bracket 22 to slide on the slide rail 21, thereby realizing the movement of the movable component 2 on the frame 11. By adopting a gear and rack transmission method, the structure is simple, the transmission is smooth, and the sliding distance of the moving component 2 can be precisely controlled, thereby improving the accuracy and stability of the horizontal position adjustment of the welding robot 4.

[0026] In this embodiment, the bracket 22 includes two support plates 221, which are spaced apart along the axial direction of the slide rail 21. A fixed plate 222 is provided between the two support plates 221. The first motor 24 is fixed on the fixed plate 222. Two rollers 223 are rotatably connected to both ends of each support plate 221, and the two rollers 223 are clamped on both sides of the slide rail 21. In implementation, driven by the power unit, the rollers 223 roll on the slide rail 21, realizing the relative sliding between the bracket 22 and the slide rail 21. By using the clamping and rolling method of the rollers 223, the sliding connection between the moving component 2 and the slide rail 21 is smoother, reducing friction, reducing energy consumption, and improving the flexibility of movement.

[0027] Preferably, the top ends of the two rollers 223 are respectively fixed with shafts 224. The top ends of the shafts 224 pass through the bracket 22 and are rotatably connected to the bracket 22. One shaft 224 is coaxially arranged with the corresponding roller 223, while the other shaft 224 is not coaxial with the corresponding roller 223 (i.e., the shaft 224 is eccentrically arranged with respect to the corresponding roller 223). The bracket 22 is provided with a wrench 226 for driving the other shaft 224 to rotate, and a stop for limiting the rotation of the wrench 226. When it is necessary to disassemble the moving component 2, rotating the wrench 226 drives the eccentrically arranged shaft 224 to rotate, causing the corresponding roller 223 to rotate away from the slide rail 21, thereby releasing the roller 223 from the slide rail 21 and realizing the quick disassembly of the moving component 2. That is, the setting of the eccentric shaft 224 makes the disassembly of the moving component 2 more convenient and faster, improves the maintenance and repair efficiency of the equipment, and facilitates the adjustment and replacement of parts of the equipment according to different welding requirements.

[0028] In this embodiment, the top end of the shaft 224, which is eccentrically positioned with respect to the roller 223, passes through the top surface of the bracket 22 and is fixedly mounted with the second gear 225. The bottom end of the wrench 226 is provided with a groove (not shown in the figure) that is adapted to the second gear 225. The groove covers the outside of the second gear 225. The wrench 226 is provided with multiple through holes 2261, which are evenly arranged along the circumference of the wrench 226. The top surface of the support plate 221 is provided with a fixing hole 2211. The stop part includes a bolt 227, which passes through the corresponding through hole 2261 in sequence and is screwed into the fixing hole 2211. In practice, when the wrench 226 is turned, the engagement of the slot and the second gear 225 drives the shaft 224 (the shaft 224 eccentric to the roller 223) to rotate. When the wrench 226 is rotated to the appropriate position, the bolts 227 are sequentially passed through the corresponding through holes 2261 and screwed into the fixing holes 2211 on the top surface of the bracket 22 to lock the wrench 226 and prevent the shaft 224 from rotating. The design of the wrench 226 and the second gear 225 facilitates the rotation of the shaft 224, while the bolts 227 lock the wrench 226. The structure is simple and reliable, effectively preventing accidental rotation of the wrench 226, ensuring the stability of the connection between the moving component 2 and the slide rail 21, and preventing the roller 223 from disengaging from the slide rail 21.

[0029] In this embodiment, the lifting assembly 3 is fixedly mounted on the moving assembly 2, and the welding robot 4 is fixedly connected to the lifting assembly 3. Specifically, the lifting assembly 3 includes a base plate 31 and a rotating plate 32. The base plate 31 is fixedly mounted on the moving assembly 2 (the base plate 31 is fixed on the top surface of the two supports 22). One end of the rotating plate 32 is rotatably connected to one end of the base plate 31, and the other end of the rotating plate 32 is rotatably provided with a first rotating shaft 33. One end of the base plate 31 is rotatably provided with an electric telescopic cylinder 34, and the output end of the electric telescopic cylinder 34 is fixedly connected to the first rotating shaft 33. In implementation, when the electric telescopic cylinder 34 is activated, it extends and retracts. Since one end of the rotating plate 32 is rotatably connected to the base plate 31 and the other end is connected to the first rotating shaft 33, the extension and retraction of the electric telescopic cylinder 34 will drive the rotating plate 32 to rotate around the connection point with the base plate 31, thereby causing the end of the rotating plate 32 near the first rotating shaft 33 to rise or fall. By using an electric telescopic cylinder 34 to drive the rotating plate 32, the structure is compact and easy to operate. It can achieve stable lifting of the lifting component 3, provide reliable lifting power for the welding robot 4, and meet the needs of welding operations at different heights.

[0030] One end of the lifting assembly 3 is a lifting end that moves along the height direction of the vehicle body 1. A connecting plate 35 is rotatably mounted on the lifting end. Specifically, the connecting plate 35 is rotatably connected to the first rotating shaft 33, and the welding robot 4 is fixedly mounted on the top of the connecting plate 35. It should be noted that the connecting plate 35 is provided with an adjusting rod 36 for keeping the connecting plate 35 in a horizontal state. That is, the adjusting rod 36 can keep the connecting plate 35 in a horizontal state, ensuring the stable operation of the welding robot 4.

[0031] In this embodiment, there are two adjusting rods 36, located on opposite sides of the base plate 31. Each adjusting rod 36 has its two ends rotatably connected to one end of the base plate 31 and the end of the connecting plate 35 furthest from the rotating plate 32. During implementation, when the rotating plate 32 rotates under the drive of the electric telescopic cylinder 34, the connecting plate 35 rises and falls accordingly. Since the two adjusting rods 36 are rotatably connected to one end of the base plate 31 and the end of the connecting plate 35 furthest from the rotating plate 32, the adjusting rods 36 rotate synchronously during the rising and falling of the connecting plate 35, adjusting the angle between the connecting plate 35 and the rotating plate 32 according to the rise and fall of the connecting plate 35, ensuring that the connecting plate 35 remains horizontal. This ensures that the welding robot 4 on the connecting plate 35 remains horizontal during the rising and falling process, preventing the tilt of the connecting plate 35 from affecting the working accuracy of the welding robot 4, improving welding quality, and guaranteeing the stability and reliability of the welding operation.

[0032] The gas tank transport vehicle 5 is a trolley used in the prior art to carry and transfer gas tanks. The trolley is equipped with ropes or chains (not shown in the figure) for securing the gas tanks to prevent them from falling off the trolley, which will not be described in detail here. A placement space 18 is provided at the end of the frame 11 away from the welding robot 4, and the gas tank transport vehicle 5 is placed in the placement space 18. Specifically, the placement space 18 is a rectangular space formed by a baffle 181 fixed to the frame 11, two side plates 182, and a pedal 183. The pedal 183 is located on the side of the placement space 18 away from the welding robot 4, and its bottom end is hinged to the frame 11. The height of the pedal 183 is greater than the distance between the frame 11 and the bottom surface. The two side plates 182 are located on both sides of the pedal 183, and each side plate 182 is equipped with a locking assembly to restrict the rotation of the pedal 183.

[0033] In practice, the end of the pedal 183 furthest from the frame 11 is lowered and brought into contact with the ground. Since the height of the pedal 183 is greater than the distance between the frame 11 and the bottom surface, the pedal 183 will be tilted at this time. This allows the gas tanker transport vehicle 5, carrying the gas tank, to be pushed into the placement space 18, which is enclosed by the baffle 181, side plate 182, and pedal 183, via the tilted pedal 183. When the pedal 183 is not needed, it is rotated towards the placement space 18, and the rotation of the pedal 183 is restricted by the locking assembly, thereby confining the gas tanker transport vehicle 5 within the placement space 18. The pedal 183 facilitates the entry and exit of the gas tanker transport vehicle 5 into and out of the placement space 18, improving the convenience of gas tank handling. At the same time, the locking assembly prevents the pedal 183 from rotating accidentally during use, ensuring the stability of the gas tanker transport vehicle 5 within the placement space 18 and preventing the gas tanker transport vehicle 5 from detaching from the placement space 18 and causing a safety accident.

[0034] In this embodiment, the locking assembly includes locking rods 1831 fixedly disposed on both sides of the pedal 183. Each side plate 182 has a groove 1821 for accommodating the corresponding locking rod. A screw 1822 is screwed onto the top surface of each side plate 182, with the bottom end of the screw 1822 passing through the groove 1821. In practice, the locking rods 1831 on both sides of the pedal 183 are placed into the corresponding grooves 1821 of the side plate 182, and then the screws 1822 on the top surface of the side plate 182 are turned so that the bottom end of the screw 1822 passes through the groove 1821 and blocks the locking rod 1831, thereby restricting the rotation of the pedal 183. When it is necessary to lower the pedal 183, the screws 1822 are loosened, the locking rods 1831 are removed from the grooves 1821, and the pedal 183 can then be rotated. The locking assembly of the present invention has a simple structure and is easy to operate. It can effectively restrict the rotation of the pedal 183, ensure the stability of the pedal 183 during use, ensure that the gas tanker 5 is safely placed in the placement space 18, and improve the safety of the equipment.

[0035] The mobile welding vehicle for construction sites of the present invention is based on the existing tracked transport vehicle, enabling the vehicle body 1 to move flexibly in complex road conditions such as potholes and mud at construction sites. In specific implementation of the present invention, by controlling the synchronous or asynchronous operation of two drive motors 13, two track assemblies 12 are driven to rotate respectively, so as to realize the forward, backward or turning of the vehicle body 1 in complex road conditions at construction sites, and move the vehicle body 1 to the area where welding operations need to be carried out.

[0036] After moving vehicle body 1 to a suitable position, the welding robot arm 4 is roughly aligned with the weld start point. It should be noted that in traditional operation modes, fixed robotic arms, due to limited working space, may require frequent movement of vehicle body 1 to complete continuous welding, which is not only inefficient but also prone to affecting weld quality due to positioning errors. However, this invention adds a moving component 2 to the top surface of vehicle body 1, giving the welding robot arm the ability to slide horizontally, increasing the welding range. Simultaneously, by sharing the top surface space of vehicle body 1, the moving component 2 allows for small-range movements instead of overall vehicle body 1 movement or robotic arm extension, expanding the working radius while maintaining equipment compactness. This design allows the work vehicle to complete more welding tasks within a limited space, reducing the equipment's footprint and improving the space utilization rate of the construction site.

[0037] Once welding begins, for welds extending horizontally, the robotic arm can move horizontally without moving the vehicle body 1, relying solely on the moving component 2. This means that after a single weld seam positioning, the robotic arm can cover a longer weld seam, significantly reducing the number of adjustments required to the vehicle body 1. For example, in welding steel beams for bridges, welding long weld seams that previously required multiple movements of the vehicle body 1 can now be completed by the robotic arm sliding continuously via the moving component 2, significantly improving work efficiency while reducing errors caused by frequent positioning and ensuring welding quality.

[0038] When performing high-altitude welding operations, the vehicle body 1 is first moved to a position below the welding point. If the robotic arm relies solely on its lifting function, its horizontal reach will be greatly limited. In this invention, the moving component 2 is linked to the lifting component 3. By activating the electric telescopic cylinder 34 of the lifting component 3, the cylinder extends and retracts, causing the rotating plate 32 to rotate around its connection point with the base plate 31. This causes the lifting end of the lifting component 3 (the end with the connecting plate 35) to rise and fall, thereby enabling the welding robotic arm 4 to move in the vertical direction. Simultaneously, the power unit of the moving component 2 is activated. The first motor 24 drives the first gear to rotate. Since the first gear meshes with the rack 23 fixed to the top surface of the slide rail 21, it causes the bracket 22, which is slidably connected to the slide rail 21, to slide axially on the slide rail 21, thereby moving the welding robotic arm 4 horizontally. The robotic arm can adjust its position in both lifting and horizontal movement, thereby better adapting to complex high-altitude working environments and ensuring the smooth progress of welding work.

[0039] If gas cylinders are needed to provide gas support for welding operations, the end of the pedal 183 furthest from the frame 11 is lowered so that it touches the ground. This allows the gas cylinder transport vehicle 5, equipped with the gas cylinder, to be pushed into the placement space 18 via the tilted pedal 183. Simultaneously, the locking assembly restricts the rotation of the pedal 183, firmly securing the gas cylinder transport vehicle 5 within the placement space 18. In other words, by providing the placement space 18 and the pedal 183 on one side of the placement space 18, it facilitates the transport of the gas cylinder transport vehicle 5 by workers, reducing their workload.

[0040] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that this specification has recorded each combined embodiment and can support different combined embodiments.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mobile welding operation vehicle for construction sites, characterized in that, include: The vehicle body includes a frame and track assemblies that are rotatably mounted on both sides of the frame; A movable component is slidably mounted on the frame, and a power unit for driving the movable component to slide is provided on one side of the movable component; A lifting assembly is fixed on the movable assembly. One end of the lifting assembly is a lifting end that moves along the height direction of the vehicle body. A connecting plate is rotatably provided on the lifting end. An adjusting rod for keeping the connecting plate in a horizontal state is provided on the connecting plate. A welding robot is fixed to the top of the connecting plate; The gas tanker transport vehicle has a placement space at the end of the frame away from the welding robot, and the gas tanker transport vehicle is placed in the placement space.

2. The mobile welding vehicle for construction sites according to claim 1, characterized in that, The moving component includes a slide rail fixed on the frame and a bracket slidably mounted on the slide rail. The power unit includes a rack fixed on the slide rail and a first motor fixed on one side of the bracket. The output end of the first motor passes through the bracket and is fixed with a first gear, which meshes with the rack.

3. The mobile welding vehicle for construction sites according to claim 2, characterized in that, The bracket includes two support plates, which are arranged at an axial distance along the slide rail. Each support plate has two rollers rotatably connected to its two ends, and the two rollers are clamped on both sides of the slide rail.

4. The mobile welding vehicle for construction sites according to claim 3, characterized in that, The top ends of the two rollers are respectively fixed with shafts, the top ends of the shafts pass through the bracket and are rotatably connected to the bracket. One shaft is coaxial with the corresponding roller, and the other shaft is not coaxial with the corresponding roller. The bracket is provided with a wrench for driving the other shaft to rotate, and a stop for limiting the rotation of the wrench.

5. The mobile welding vehicle for construction sites according to claim 4, characterized in that, The top end of another shaft passes through the top surface of the bracket and is fixedly provided with a second gear. The bottom end of the wrench is provided with a groove that matches the second gear. The groove covers the outside of the second gear. The wrench is provided with multiple through holes, which are evenly arranged along the circumference of the wrench. The top surface of the bracket is provided with a fixing hole. The stop part includes bolts, which pass through the corresponding through holes in sequence and are screwed into the fixing holes.

6. The mobile welding vehicle for construction sites according to claim 1, characterized in that, The lifting assembly includes a base plate and a rotating plate. The base plate is fixedly mounted on the moving assembly. One end of the rotating plate is rotatably connected to one end of the base plate. The other end of the rotating plate is rotatably provided with a first rotating shaft. One end of the base plate is rotatably provided with an electric telescopic cylinder. The output end of the electric telescopic cylinder is fixedly connected to the first rotating shaft.

7. The mobile welding vehicle for construction sites according to claim 6, characterized in that, There are two adjusting rods, which are located on both sides of the base plate. The two ends of each adjusting rod are rotatably connected to one end of the base plate and the end of the connecting plate away from the rotating plate.

8. The mobile welding vehicle for construction sites according to claim 1, characterized in that, The placement space is a rectangular space enclosed by a baffle fixed to the frame, two side plates, and a pedal. The pedal is located on the side of the placement space away from the welding robot. The bottom end of the pedal is hinged to the frame. The height of the pedal is greater than the distance between the frame and the bottom surface. The two side plates are located on both sides of the pedal. Each of the two side plates is provided with a locking assembly for restricting the rotation of the pedal.

9. The mobile welding vehicle for construction sites according to claim 8, characterized in that, The locking assembly includes locking rods fixed to both sides of the pedal, and each side plate is provided with a groove for accommodating the corresponding locking rod. A screw is screwed to the top surface of each side plate, and the bottom end of the screw passes through the groove.

Images