A mobile, trackless welding station

The mobile trackless welding workstation, with its lifting mechanism and modular design, solves the problems of limited vertical working space and complex robot assembly and disassembly, achieving efficient, safe, and low-energy welding operations.

CN224543527UActive Publication Date: 2026-07-24CHINA RAILWAY BAOJI BRIDGE YANGZHOU CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY BAOJI BRIDGE YANGZHOU CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing mobile trackless welding workstations have limited vertical working space, making it difficult to adapt to workpieces with large height differences. Welding robots are complex to assemble and disassemble, have low modularity, resulting in low work efficiency, high safety risks, and high energy consumption.

Method used

The vertical workspace is expanded by adopting a lifting mechanism, the welding robot base is detachable for easy manual disassembly and handling, the modular design of components reduces the overall size and weight, and the main frame is used to improve overall rigidity and lightness.

Benefits of technology

It improved operational efficiency, reduced safety risks and operational complexity, enhanced mobility and flexibility, and reduced energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to welding equipment technical field, concretely relates to a mobile trackless welding workstation, including frame box, crawler mechanism, elevating system, wire feeding mechanism, welding power cabinet, welding robot and integrated control cabinet, the utility model discloses through elevating system makes welding robot can adapt to the welding demand of different height workpieces, expands perpendicular working space, need not auxiliary equipment or frequent displacement and carries out height compensation, and the operation efficiency is greatly promoted, and the security risk and operation complexity are reduced, and the detachable design of welding robot base and elevating system drive end is convenient for manual to the robot and carries, and through the modularization design of each component, the overall volume is reduced, and the whole machine weight is reduced, thereby improved the mobility, flexibility, and reduced energy consumption.
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Description

Technical Field

[0001] This utility model belongs to the field of welding equipment technology, specifically relating to a mobile trackless welding workstation. Background Technology

[0002] Welding is a critical process in the manufacturing and on-site construction of large structural components (such as ships, bridges, and steel structures). However, traditional fixed welding stations or manual hand-held welding torches suffer from problems such as low efficiency, poor quality consistency, high labor intensity for workers, and harsh working environments. They are particularly unsuitable for welding large workpieces in multiple positions with complex trajectories.

[0003] To overcome the above limitations, mobile trackless welding workstations have emerged. These workstations break through the limitations of fixed workstations and can move autonomously or semi-autonomously to different positions on the workpiece to perform operations, thereby significantly improving the flexibility and automation level of the welding process.

[0004] However, the welding execution units of existing mobile trackless welding workstations are usually fixedly installed on the workstation base, resulting in limited vertical working space and difficulty in adapting to the welding needs of workpieces with height differences. This often requires auxiliary equipment or frequent relocation for height compensation, which significantly reduces work efficiency, increases production costs, and adds additional safety risks and operational complexity. Furthermore, the disassembly and assembly of the welding robot on it and the welding workstation body is relatively complex. When facing scenarios where the workstation cannot access, it is difficult to manually disassemble and move the robot. In addition, the low degree of modularity of various components, the bulky structure of the whole machine, and the poor lightweighting result in poor mobility and high energy consumption of the workstation. Utility Model Content

[0005] The purpose of this utility model is to provide a mobile trackless welding workstation that solves the technical problems of limited operating height range, cumbersome disassembly and assembly of welding robots, low modularity, and poor lightweighting in the existing technology.

[0006] This utility model discloses a mobile trackless welding workstation, comprising: The rack housing has a hollow structure and a load-bearing platform on top; The track mechanism is symmetrically arranged on both sides of the frame housing along the width direction; The lifting mechanism is fixedly installed inside the frame housing and close to one side of the frame housing along its length, and its drive end extends upward and penetrates the bearing platform. The wire feeding mechanism is fixedly installed on the support platform; The welding power supply cabinet is fixedly installed on the support platform; A welding robot, the base of which is detachably mounted on the drive end of the lifting mechanism; An integrated control cabinet is fixedly installed on the support platform and is electrically connected to the track mechanism, the lifting mechanism, the wire feeding mechanism, the welding power supply cabinet, and the welding robot, respectively.

[0007] This application enables the welding robot to adapt to the welding needs of workpieces of different heights through a lifting mechanism, expanding the vertical working space. It eliminates the need for auxiliary equipment or frequent relocation for height compensation, significantly improving work efficiency, reducing safety risks and operational complexity. The detachable design of the welding robot base and the lifting mechanism drive end facilitates manual disassembly and handling of the robot. Furthermore, the modular design of each component reduces the overall size and weight, thereby improving mobility and flexibility, and reducing energy consumption.

[0008] Based on the above technical solution, the solution of this application can be further improved as follows: Preferably, the wire feeding mechanism includes: A support platform is fixedly installed on the bearing platform and located next to the lifting mechanism; A wire feeder is fixedly installed on the top surface of the support platform; A support frame is fixedly installed on the bearing platform and located beside the support platform; The wire spool box has a cylindrical shell structure and is fixedly installed on the support frame. It has an opening on one side for loading the welding wire spool, and a notch on the peripheral wall for the welding wire to be led out. A support shaft is horizontally positioned at the center of the wire spool box to support the welding wire spool. This design creates a linear wire feeding path, eliminates lateral swaying of the welding wire, ensures continuous wire feeding during mobile welding, improves wire feeding stability and welding wire cleanliness, and also guarantees the efficiency and portability of replacing the welding wire spool.

[0009] Preferably, the wire feeding mechanism includes: A support rod is fixedly installed on the support frame and located between the wire feeder and the wire reel box; The wire guide tube is fixedly installed on the support rod and located adjacent to the notch. This solution serves to orient the wire, eliminates lateral swaying and elastic vibration of the welding wire, and significantly improves the wire feeding stability under complex working conditions.

[0010] Preferably, the wire feeding mechanism includes: A limiting plate is fixedly sleeved on one end of the support shaft near the bottom of the reel box; A positioning post is located on the outer end face of the limiting plate; The support shaft is rotatably connected to the wire spool box. This design improves wire feeding stability, reduces end face wear of the welding wire spool, avoids scratches and contamination of the welding wire, and ensures welding results.

[0011] Preferably, the rack housing includes: The main frame has a rectangular three-dimensional structure; The base plate is fixedly installed at the bottom of the internal space of the main frame; Several side plates are respectively fixedly installed on the four sides of the main frame; The top plate is fixedly installed on the top of the main frame, and its top surface forms the bearing platform and has a through hole for the lifting mechanism to pass through. This solution ensures overall rigidity, effectively resists welding vibration and moving impact, can evenly transfer the load to the entire frame, avoid local stress concentration, and also forms a sealed space to block the intrusion of external factors. It also takes into account lightweight, load-bearing capacity, structural strength and vibration resistance.

[0012] Preferably, the rack housing includes: Two extension frames are symmetrically fixedly installed on both sides of the main frame along the width direction, and laterally extend outward to be located directly above the track mechanism; The top plate extends laterally on both sides of the frame housing to form an extension platform, which covers the top of the extension frame. This solution transforms the space above the track mechanism into an equipment installation area, thereby improving space utilization. The extension frame ensures the load-bearing capacity of the extension platform, while also achieving lightweight design. Furthermore, it can cover the track mechanism to reduce rainwater erosion.

[0013] Preferably, it further includes: Four hooks are fixedly installed at the four corners of the top surface of the welding power cabinet. This solution forms a lifting point matrix, ensures uniform stress distribution in the cabinet, improves the stability of the whole machine during lifting, and does not require additional floor space, thus improving space utilization.

[0014] Preferably, it further includes: A support frame is vertically and fixedly installed at the end of the frame housing away from the lifting mechanism. Multiple hooks are spaced apart along the width of the frame housing and fixedly installed on the side of the support frame facing away from the frame housing. This solution provides a stable suspension plane perpendicular to the direction of equipment movement and provides multi-point constraint on the cable, eliminating the risk of swaying during operation. It forms a spatially isolated cable fixing structure, which facilitates the safe placement and flexible handling of cables.

[0015] Preferably, a crossbeam is fixedly installed on the side of the support frame facing the frame housing, and the bottom surface of the crossbeam is in contact with the bearing platform; by adopting this solution, a rigid force transmission interface is constructed, which can evenly distribute the cable suspension load, avoid stress concentration, and thus improve the structural stability.

[0016] Through the above technical solution, this utility model achieves the following beneficial effects: 1. This application enables the welding robot to adapt to the welding needs of workpieces of different heights through a lifting mechanism, expanding the vertical working space. It eliminates the need for auxiliary equipment or frequent relocation for height compensation, significantly improving work efficiency, reducing safety risks and operational complexity. The detachable design of the welding robot base and the lifting mechanism drive end facilitates manual disassembly and handling of the robot. Furthermore, the modular design of each component reduces the overall size and weight, thereby improving mobility and flexibility, and reducing energy consumption. 2. This application utilizes the main frame to ensure overall rigidity, effectively resisting welding vibration and moving impact. The top plate centrally supports the equipment and evenly distributes the load to the entire frame, avoiding local stress concentration. Furthermore, the bottom plate, side plates, and top plate form a sealed space to prevent external factors from intruding. It also takes into account lightweight, load-bearing capacity, structural strength, and vibration resistance. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view (rear side view) of the mobile trackless welding workstation described in a specific embodiment. Figure 2 This is a perspective view (front side view) of the mobile trackless welding workstation described in a specific embodiment. Figure 3 for Figure 1 A 3D view of the wire feeding mechanism in the mobile trackless welding workstation shown. Figure 4 for Figure 1 A 3D view of the frame housing of the mobile trackless welding workstation shown; Figure 5 for Figure 4 The diagram shows the structural design of the rack housing. Explanation of reference numerals in the attached figures: 1. Frame housing; 101. Load-bearing platform; 102. Extension platform; 11. Main frame; 12. Base plate; 13. Side plate; 14. Top plate; 141. Through hole; 15. Extension frame; 2. Track mechanism; 3. Lifting mechanism; 4. Wire feeding mechanism; 41. Support platform; 42. Wire feeder; 43. Support frame; 44. Wire reel box; 441. Opening; 442. Notch; 45. Support shaft; 46. Support rod; 47. Wire guide tube; 48. Limiting plate; 49. Positioning column; 5. Welding power cabinet; 6. Welding robot; 7. Integrated control cabinet; 8. Hook; 9. Support frame; 91. Crossbeam; 10. Hook. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0022] Example: like Figure 1 As shown in the figure, this application discloses a mobile trackless welding workstation, which can autonomously move to different positions of the workpiece to perform welding operations. It has the advantages of a large working height range, convenient assembly and disassembly of the welding robot, high modularity and good lightweight. Its specific structure includes: frame box 1, track mechanism 2, lifting mechanism 3, wire feeding mechanism 4, welding power cabinet 5, welding robot 6 and integrated control cabinet 7.

[0023] The rack housing 1 has a hollow structure, and its internal space can be used to install equipment, such as drive motors, which serves to prevent collisions and dust, and improves the structural compactness of the workstation; and the top of the rack housing 1 has a load-bearing platform 101 for centrally supporting welding equipment, thereby optimizing space utilization.

[0024] The track mechanism 2 is symmetrically arranged on both sides of the frame housing 1 along the width direction. It breaks through the limitations of the track, has all-terrain mobility, can adapt to various complex terrains, and can turn on the spot, improving maneuverability in narrow spaces. Its symmetrical layout ensures the balance of movement and avoids the risk of tilting.

[0025] The lifting mechanism 3 is fixedly installed inside the frame housing 1 and close to one side of the frame housing 1 along its length. Its drive end extends upward and passes through the bearing platform 101 to adjust the vertical height of the welding robot 6 to adapt to the welding requirements of workpieces of different heights. Its installation method lowers the center of gravity of the whole machine, improves working stability, and provides the welding robot 6 with the maximum front working space through the end layout, avoiding interference with the platform equipment.

[0026] For example, the lifting mechanism 3 can be a servo electric cylinder, which can achieve precise lifting through a lead screw, and can adapt to the welding needs of workpieces of different heights, but is not limited to this and is not restricted.

[0027] The wire feeding mechanism 4 is fixedly installed on the support platform 101 and is responsible for the continuous feeding of welding wire, ensuring the stability of the welding process.

[0028] The welding power cabinet 5 is fixedly installed on the support platform 101, providing stable power for the welding process.

[0029] The welding robot 6 is an end effector that can perform welding on complex trajectories through multi-degree-of-freedom joints. Its base is detachably mounted on the drive end of the lifting mechanism 3 so that it can be disassembled and transported manually when the workstation cannot access the scene. Specifically, it is bolted together with a flange, which ensures the stability of the connection and facilitates installation and disassembly.

[0030] The integrated control cabinet 7 is fixedly installed on the support platform 101 and is electrically connected to the track mechanism 2, lifting mechanism 3, wire feeding mechanism 4, welding power cabinet 5 and welding robot 6 respectively. It can realize functions such as movement positioning, height adjustment, power output, welding wire supply and trajectory execution, and realize the full automation of welding operation.

[0031] This invention enables the welding robot 6 to adapt to the welding needs of workpieces of different heights through the lifting mechanism 3, expanding the vertical working space. It eliminates the need for auxiliary equipment or frequent relocation for height compensation, significantly improving work efficiency, reducing safety risks and operational complexity. The detachable design of the welding robot 6 base and the drive end of the lifting mechanism 3 facilitates manual disassembly and handling of the robot. Furthermore, the modular design of each component reduces the overall size and weight, thereby improving mobility and flexibility, and reducing energy consumption.

[0032] In some embodiments, such as Figure 3 As shown, the wire feeding mechanism 4 includes: The support platform 41 is fixedly installed on the bearing platform 101 and located next to the lifting mechanism 3. It is used to raise the wire feeder 42, thereby shortening the wire feeding path, reducing the risk of welding wire vibration, and providing a stable base for the wire feeder 42, thus reducing welding vibration interference. The wire feeder 42 is fixedly installed on the top surface of the support platform 41 and is used to push the welding wire from the wire spool to the end of the welding robot 6 at a uniform speed. The support frame 43 is fixedly installed on the bearing platform 101 and located next to the support table 41. It is used to independently support the wire reel box 44 and prevent its weight and rotational vibration from being transmitted to the wire feeder 42. The wire reel box 44 has a cylindrical shell structure and is fixedly installed on the support frame 43. It has an opening 441 on one side for loading the welding wire reel, and a notch 442 on the peripheral wall for the welding wire to be led out, which can prevent external dust and sputtering sparks from entering the wire reel area. The support shaft 45 is horizontally positioned at the center of the wire spool box 44 to support the welding wire spool.

[0033] The above design creates a linear wire feeding path, eliminates lateral swaying of the welding wire, ensures continuous wire feeding during mobile welding, improves wire feeding stability and welding wire cleanliness, and also guarantees the efficiency and portability of replacing the welding wire reel.

[0034] In this embodiment, as Figure 3 As shown, the wire feeding mechanism 4 also includes: The support rod 46 is fixedly installed on the support frame 43 and located between the wire feeder 42 and the wire reel box 44. It is used to establish a rigid transition structure, eliminate the suspended section of the welding wire, and provide a mounting base for the wire guide tube 47. The wire guide tube 47 is fixedly mounted on the support rod 46 and is disposed adjacent to the notch 442 for guiding the welding wire into the guide channel after it is led out from the notch 442.

[0035] The above design achieves path orientation, eliminates lateral swaying and elastic vibration of the welding wire, and significantly improves the wire feeding stability under complex working conditions.

[0036] In this embodiment, as Figure 3 As shown, the wire feeding mechanism 4 also includes: The limiting plate 48 is fixedly sleeved on one end of the support shaft 45 near the bottom of the wire spool box 44. It is used to isolate the welding wire spool from the bottom of the box and prevent the two from sliding and rubbing against each other, thereby preventing the welding wire from being scratched and ensuring the welding effect. The positioning post 49 is located on the outer end face of the limiting plate 48 and is adapted to the positioning hole on the welding wire spool to limit the relative rotation between the welding wire spool and the support shaft 45. The support shaft 45 is rotatably connected to the coil box 44. Specifically, friction can be reduced through components such as rolling bearings or self-lubricating bushings, thereby achieving ultra-low resistance rotation and improving rotational stability.

[0037] The above design improves wire feeding stability, reduces end-face wear of the welding wire spool, avoids scratches and contamination of the welding wire, and ensures welding results.

[0038] In some embodiments, such as Figure 4 and Figure 5 As shown, the rack housing 1 includes: The main frame 11 has a rectangular three-dimensional structure, which facilitates the standardized installation and replacement of the panels. It uses tubular cross-section profiles (square tube / rectangular tube), thereby achieving a high strength-to-weight ratio through the hollow structure, taking into account both structural strength and lightweight, and also distributing the load evenly to avoid local stress concentration. The base plate 12 is fixedly installed at the bottom of the internal space of the main frame 11, serving as the base surface for equipment installation, and cooperating with other plates to form a closed cavity to prevent mud and water from entering from the outside. Several side plates 13 are fixedly installed on the four sides of the main frame 11 to form a closed cavity with other plates to prevent mud and water from entering from the outside. The top plate 14 is fixedly installed on the top of the main frame 11, and its top surface forms a bearing platform 101, and has a through hole 141 for the lifting mechanism 3 to pass through.

[0039] Through the above design, the main frame 11 ensures overall rigidity and can effectively resist welding vibration and moving impact. The top plate 14 concentrates the load-bearing equipment and evenly distributes the load to the entire frame, avoiding local stress concentration. The bottom plate 12, side plates 13 and top plate 14 form a sealed space to block the intrusion of external factors, while taking into account lightweight, load-bearing capacity, structural strength and vibration resistance.

[0040] Based on the above embodiments, such as Figure 4 and Figure 5 As shown, the rack housing 1 includes: Two extension frames 15 are symmetrically fixed on both sides of the main frame 11 along the width direction and laterally extend outward to be located directly above the track mechanism 2. They also adopt tubular cross-section profile square / rectangular tubes to balance structural strength and lightweight. The top plate 14 extends laterally on both sides along the width direction of the frame housing 1 to form an extension platform 102, which covers the top of the extension frame 15.

[0041] Through the above design, the space above the track mechanism 2 is transformed into an equipment installation area, thereby improving space utilization. The expansion frame 15 ensures the load-bearing capacity of the expansion platform 102, while also taking into account lightweight design. It can also cover the track mechanism 2 to reduce rainwater erosion.

[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, it also includes: Four hooks 8 are fixedly installed at the four corners of the top surface of the welding power cabinet 5 to form a lifting point matrix, ensuring uniform stress distribution in the cabinet, improving the stability of the whole machine during lifting, and requiring no additional floor space, thus improving space utilization.

[0043] In some embodiments, such as Figure 1 and Figure 2 As shown, it also includes: The support frame 9 is vertically fixed at the end of the frame housing 1 away from the lifting mechanism 3. It is used to prevent the cables from being damaged by sparks from the welding area, and also separates the cable placement area from the equipment installation area. It also provides support for the hook 10 at a suitable position in the vertical direction. Multiple hooks 10 are arranged at intervals along the width direction of the rack housing 1 and fixedly installed on the side of the support frame 9 facing away from the rack housing 1. Through multi-point constraint, the swing of the suspended cable can be limited.

[0044] Through the above design, the support frame 9 provides a stable suspension plane perpendicular to the direction of equipment movement, and the hook 10 provides multi-point constraint for the cable, eliminating the risk of swaying under moving conditions. This constitutes a spatially isolated cable fixing structure, which facilitates the safe placement and flexible handling of cables.

[0045] In this embodiment, as Figure 1 As shown, a crossbeam 91 is fixedly installed on the side of the support frame 9 facing the rack housing 1. The bottom surface of the crossbeam 91 is in contact with the bearing platform 101. It forms a rigid force transmission interface between the support frame 9 and the rack housing 1, which can evenly distribute the cable suspension load and avoid stress concentration, thereby improving the structural stability.

[0046] The workflow for this application will be further explained as follows: First, the welding wire spool is loaded into the wire feeding mechanism 4. The operator inputs the target coordinates through the integrated control cabinet 7. The integrated control cabinet 7 analyzes the path and generates steering / speed commands for the tracked mechanism 2. Then, the workstation moves autonomously to the target area. After that, the integrated control cabinet 7 calculates the required working height and drives the drive end of the lifting mechanism 3 to lift / lower. Finally, the integrated control cabinet 7 synchronously issues commands, including: the current / voltage of the welding power cabinet 4, the wire feeding speed of the wire feeding mechanism 5, and the weld trajectory program of the welding robot 6. Finally, the welding robot 6 begins welding operations. In situations where the workstation cannot enter, the welding robot 6 can be manually detached from the drive end of the lifting mechanism 3 and then moved and fixed next to the welding station to enable it to work.

[0047] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A mobile trackless welding workstation, characterized in that, include: The rack housing has a hollow structure and a load-bearing platform on top; The track mechanism is symmetrically arranged on both sides of the frame housing along the width direction; The lifting mechanism is fixedly installed inside the frame housing and close to one side of the frame housing along its length, and its drive end extends upward and penetrates the bearing platform. The wire feeding mechanism is fixedly installed on the support platform; The welding power supply cabinet is fixedly installed on the support platform; A welding robot, the base of which is detachably mounted on the drive end of the lifting mechanism; An integrated control cabinet is fixedly installed on the support platform and is electrically connected to the track mechanism, the lifting mechanism, the wire feeding mechanism, the welding power supply cabinet, and the welding robot, respectively.

2. The mobile trackless welding workstation according to claim 1, characterized in that, The wire feeding mechanism includes: A support platform is fixedly installed on the bearing platform and located next to the lifting mechanism; A wire feeder is fixedly installed on the top surface of the support platform; A support frame is fixedly installed on the bearing platform and located beside the support platform; The wire spool box has a cylindrical shell structure and is fixedly installed on the support frame. It has an opening on one side for loading the welding wire spool, and a notch on the peripheral wall for the welding wire to be led out. A support shaft is horizontally positioned at the center of the wire spool box to support the welding wire spool.

3. The mobile trackless welding workstation according to claim 2, characterized in that, The wire feeding mechanism includes: A support rod is fixedly installed on the support frame or the support platform and is located between the wire feeder and the wire reel box; The guide wire tube is fixedly installed on the support rod and is located adjacent to the notch.

4. The mobile trackless welding workstation according to claim 2, characterized in that, The wire feeding mechanism includes: A limiting plate is fixedly sleeved on one end of the support shaft near the bottom of the reel box; A positioning post is located on the outer end face of the limiting plate; The support shaft is rotatably connected to the coil box.

5. The mobile trackless welding workstation according to claim 1, characterized in that, The rack housing includes: The main frame has a rectangular three-dimensional structure; The base plate is fixedly installed at the bottom of the internal space of the main frame; Several side plates are respectively fixedly installed on the four sides of the main frame; The top plate is fixedly installed on the top of the main frame, and the top surface of the plate forms the bearing platform and has a through hole for the lifting mechanism to pass through.

6. The mobile trackless welding workstation according to claim 5, characterized in that, The rack housing includes: Two extension frames are symmetrically fixedly installed on both sides of the main frame along the width direction, and laterally extend outward to be located directly above the track mechanism; The top plate extends laterally on both sides along the width direction of the frame housing to form an extension platform, which covers the top of the extension frame.

7. The mobile trackless welding workstation according to claim 1, characterized in that, Also includes: Four hooks are fixedly installed at the four corners of the top surface of the welding power cabinet.

8. The mobile trackless welding workstation according to claim 1, characterized in that, Also includes: A support frame is vertically and fixedly installed at the end of the frame housing away from the lifting mechanism. Multiple hooks are arranged at intervals along the width of the frame housing and are fixedly installed on the side of the support frame facing away from the frame housing.

9. The mobile trackless welding workstation according to claim 8, characterized in that, A crossbeam is fixedly installed on the side of the support frame facing the frame housing, and the bottom surface of the crossbeam is in contact with the bearing platform.