Submerged arc welding machine for steel structure manufacturing and working method thereof
By designing a submerged arc welding machine for steel structure fabrication, which automatically removes welding slag using a striking rod and a slag removal rod, and combines this with the stable movement of the traveling frame and the load-bearing frame, the problems of difficult weld observation and inconvenient equipment operation have been solved, thus improving welding efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAN GAOFENG STEEL STRUCTURE CO LTD
- Filing Date
- 2026-04-08
- Publication Date
- 2026-06-16
AI Technical Summary
In the existing submerged arc welding process for steel structures, the weld is not easy to observe, the weld slag is difficult to clean, the welding position is inconvenient to operate, and the large size of the welding equipment makes observation difficult.
A submerged arc welding machine for steel structure fabrication was designed, including a walking frame, horizontal and vertical adjustment mechanisms, and equipped with a striking rod and a slag removal rod. The welding slag is automatically removed through the cooperation of the adjustment shaft and the support spring. At the same time, a load-bearing frame and contact wheels are set to achieve stable movement and flux recovery.
It enables timely observation and thorough cleaning of weld conditions, stable movement and flexible adjustment of welding equipment, and improves welding efficiency and quality.
Smart Images
Figure CN122210178A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of submerged arc welding machines, specifically to a submerged arc welding machine for steel structure fabrication and its working method. Background Technology
[0002] Submerged arc welding is a fusion welding method in which an electric arc burns under a layer of granular flux, with continuous automatic wire feeding and mechanized movement. It is one of the most important mechanization and automation technological breakthroughs in the welding field in the 20th century. Submerged arc welding of steel structures is currently the most mainstream and efficient automatic welding process for welding medium and thick plates of heavy steel structures such as bridges, factories, box columns, and steel beams. Its full name is submerged arc automatic welding. Submerged arc welding of steel structures has become the standard main welding process for bridges, factories, wind power, and heavy steel structures due to its high efficiency, high quality, and low defects. It is the preferred process for medium and thick plates, long straight seams, and factory production.
[0003] In existing steel structures, the arc is covered by flux during submerged arc welding, making it difficult to observe the weld. This requires an automatic weld tracking device, which places high demands on assembly. The flux residue covering the weld needs to be manually knocked away by workers, which is not conducive to timely observation of the weld. At the same time, rust or flying metal is prone to appear at the welding position, resulting in defects such as poor weld surface formation, slag inclusions, porosity, and cracks. The surface of the weldment needs to be strictly cleaned. In addition, existing submerged arc welding is mostly carried out with gantry cranes for movement. Due to the large size of these cranes, operators cannot get close to the welding position during the welding process. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a submerged arc welding machine for steel structure fabrication and its operating method, thus solving the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a submerged arc welding machine for steel structure fabrication, comprising a walking frame, a transverse adjustment beam fixedly connected to the top of the walking frame, a transverse adjustment mechanism provided on the outer surface of the transverse adjustment beam, a vertical adjustment mechanism provided to the right of the transverse adjustment mechanism, a welding assembly provided to the right of the vertical adjustment mechanism, a support frame provided at the bottom of the welding assembly, a docking frame fixedly connected to the left end of the support frame, a drive motor embedded in the front side wall of the support frame, a drive shaft fixedly connected to the left end of the drive motor output shaft located in front of the docking frame, two bevel gears provided on the outside of the drive shaft, and the docking frame located behind the drive shaft. The system is rotatably connected to an adjusting shaft. The front end of the adjusting shaft meshes with a drive shaft via a bevel gear. A cam is located at the rear end of the adjusting shaft. Knocking rods are slidably connected to the left and right sides of the docking frame, located behind the drive shaft. The top of the knocking rods is slidably connected to the outer wall of the cam via a push rod. A support spring is fixedly connected between the outer surface of the knocking rods and the bottom wall of the docking frame. A slag removal rod is threadedly connected to the bottom left end of the docking frame. The slag removal rod is set at an inclined angle. Contact wheels are rotatably connected to the left and right side walls of the bottom of the bearing frame. A steel brush wheel assembly is fixedly connected to the right end of the bearing frame. A connecting frame is fixedly connected to the top wall of the bearing frame. A guide frame is slidably connected inside the top of the connecting frame.
[0006] Preferably, a limit ring is fixedly connected to the side wall of the docking frame on the outer surface of the drive shaft, and a support tube is fixedly connected to the side wall of the docking frame on the outer surface of the adjustment shaft.
[0007] Preferably, the docking frame has a sliding hole inside that is slidably connected to the top of the striking rod, the top wall of the docking frame is provided with an extension frame that is slidably connected to the side wall of the striking rod, the outer surface of the striking rod is connected to the bottom end of the support spring by a fixing ring, the top end of the support spring is connected to the bottom wall of the docking frame, and the bottom end of the striking rod is set in the shape of a triangular prism.
[0008] Preferably, a fixing ring is fixedly connected to the left side of the inner side of the bearing frame, and a fastening screw is rotatably connected between the front end of the bearing frame and the fixing ring. A flux recovery pipe is provided between the inner side of the fixing ring and the left side wall of the walking frame. A locking pipe is fixedly connected to the outer surface of the flux recovery pipe at the position of the fixing ring. A groove is opened on the side wall of the locking pipe to engage with the fastening screw. One end of the contact wheel is provided with a slope of 45°.
[0009] Preferably, the bottom end of the flux recovery pipe is tapered, and a connecting ring is fixedly connected to the top left wall of the support frame on the outer surface of the flux recovery pipe. The end of the flux recovery pipe away from the support frame is connected to an external flux recovery device, and the steel brush wheel assembly consists of a steel brush wheel and a power motor.
[0010] Preferably, the welding assembly includes a welding wire spool support, a welding wire spool is provided inside the top of the welding wire spool support, a wire feeding mechanism is bolted to the front side of the bottom end of the welding wire spool support, a welding head is connected through the bottom end of the wire feeding mechanism, and a guide frame is fixedly connected to the bottom wall of the welding wire spool support.
[0011] Preferably, the welding head, flux recovery pipe, steel brush wheel assembly, striking rod and slag removal rod are coaxially arranged, and a flux storage box is connected through the top of the right side wall of the walking frame and the welding head. The flux storage box is connected to the welding head through a flux delivery pipe.
[0012] Preferably, the lateral adjustment mechanism includes a translation frame, an adjustment power source A is provided between the left end of the translation frame and the lateral adjustment beam, the adjustment power source A consists of a lead screw and a motor, the left end of the translation frame is provided with a connecting pipe that meshes with the outer wall of the lead screw, a threaded rod is rotatably connected between the right side wall of the translation frame and the top of the connecting frame, the vertical adjustment mechanism includes a lifting plate, the lifting plate is fixedly connected to the left side wall of the welding wire spool bracket, the right side wall of the translation frame is slidably connected to the lifting plate by a guide rail, the top of the translation frame is fixedly connected with an adjustment power source B, the adjustment power source B consists of a gear and a motor, and a toothed plate that meshes with the gear is embedded in the left side wall of the lifting plate.
[0013] Preferably, the top rear end of the walking frame is provided with auxiliary walking wheels, and a balance rail is slidably connected inside the auxiliary walking wheels. The balance rail is connected to the steel structure column set on the ground of the welding workshop. The bottom rear end of the walking frame is provided with a walking assembly, and a grounding rail is slidably connected inside the walking assembly. The grounding rail is set on the ground of the welding workshop. The walking assembly consists of walking wheels and a motor. Three sets of guide components are provided on the front side wall of the walking frame. Each guide component consists of walking wheels. A groove is opened on the side wall of the walking frame at the position of the guide component. A sliding rail is provided inside the guide component. A material carrier is fixedly connected between the sliding rails below the welding components.
[0014] A method for using a submerged arc welding machine for steel structure fabrication includes the following steps: S1: First, according to the welding position, adjust power source A to drive the horizontal adjustment mechanism to move above the weld seam, and at the same time adjust power source B to drive the vertical adjustment mechanism to move. The vertical adjustment mechanism drives the welding assembly to approach the steel structure placed on the material carrier. S2: Then the welding head approaches the weld, and at the same time the load-bearing frame drives the contact wheel to contact the steel structure. The contact wheel supports the load-bearing frame and internal components. S3: Then the steel brush wheel assembly grinds the weld seam. The walking frame drives the welding components to perform submerged arc welding under the guidance of the sliding rail and auxiliary walking wheels. The flux recovery pipe absorbs and recovers excess flux under the action of external flux recovery equipment. S4: Finally, the drive motor drives the drive shaft to rotate, the drive shaft drives the adjustment shaft to rotate, and the adjustment shaft drives the striking rod in the docking frame to move up and down alternately under the action of the support spring. The striking rod strikes and cuts off the weld slag waste layer, and the slag removal rod cleans the weld slag waste layer that has not been separated from the weld.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This submerged arc welding machine for steel structure fabrication, by setting a striking rod, in cooperation with the adjusting shaft and the support spring, the striking rod strikes and cuts off the layer of welding slag waste. At the same time, it is equipped with an inclined slag removal rod to thoroughly clean the layer of welding slag waste that has not detached from the weld. It has the feature of automatically removing the layer of welding slag waste, which helps to observe the weld condition in a timely manner.
[0016] 2. This submerged arc welding machine for steel structure fabrication, by setting up a traveling frame, allows the welding components to move with the lateral adjustment beam under the cooperation of the guide components and the sliding rail. At the same time, by setting up auxiliary traveling wheels, the traveling frame can move the welding components stably. This effectively solves the problem that existing submerged arc welding machines mostly move by gantry frames, resulting in large size, inconvenient operation, and inability to observe the welding status of steel structures in a timely manner.
[0017] 3. The submerged arc welding machine for steel structure fabrication, by setting up a load-bearing frame, allows the load-bearing frame and its internal components to move stably with the cooperation of contact wheels. At the same time, by setting up a fixing ring and fastening screw, the distance between the flux recovery pipe and the weld can be flexibly adjusted, which has the advantage of being easy to adjust. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the flux recovery pipe structure of the present invention; Figure 3 This is a schematic diagram of the walking assembly structure of the present invention; Figure 4 This is a schematic diagram of the sliding rail structure of the present invention; Figure 5 This is a schematic diagram of the transverse adjustment beam structure of the present invention; Figure 6 This is a schematic diagram of the wire spool support structure of the present invention; Figure 7 This is a schematic diagram of the threaded rod structure of the present invention; Figure 8 This is a schematic diagram of the lifting plate structure of the present invention; Figure 9 This is a schematic diagram of the slag removal rod structure of the present invention; Figure 10 This is a schematic diagram of the striking rod structure of the present invention.
[0019] In the diagram: 1. Walking frame; 2. Lateral adjusting beam; 3. Bearing frame; 4. Connecting frame; 5. Drive motor; 6. Drive shaft; 7. Adjusting shaft; 8. Striking rod; 9. Support spring; 10. Slag removal rod; 11. Contact wheel; 12. Steel brush wheel assembly; 13. Connecting frame; 14. Guide frame; 15. Fixing ring; 16. Fastening screw; 17. Flux recovery pipe; 18. Positioning pipe; 19. Welding wire spool bracket; 20. Welding wire spool; 21. Wire feeding mechanism; 22. Welding head; 23. Flux storage box; 24. Translation frame; 25. Adjusting power source A; 26. Lifting plate; 27. Adjusting power source B; 28. Auxiliary walking wheel; 29. Balance track; 30. Walking assembly; 31. Grounding rail; 32. Sliding rail; 33. Material carrier; 34. Threaded rod. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0021] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0022] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.
[0024] like Figure 1-10 As shown, a submerged arc welding machine for steel structure fabrication includes a walking frame 1. A transverse adjustment beam 2 is fixedly connected to the top of the walking frame 1. A transverse adjustment mechanism is provided on the outer surface of the transverse adjustment beam 2. A vertical adjustment mechanism is provided on the right side of the transverse adjustment mechanism. A welding assembly is provided on the right side of the vertical adjustment mechanism. A load-bearing frame 3 is provided at the bottom of the welding assembly. A docking frame 4 is fixedly connected to the left end of the load-bearing frame 3. A drive motor 5 is embedded in the front side wall of the load-bearing frame 3. A drive shaft 6 is fixedly connected to the left end of the output shaft of the drive motor 5 in front of the docking frame 4. Two bevel gears are provided on the outside of the drive shaft 6. An adjustment shaft 7 is rotatably connected to the inside of the docking frame 4 behind the drive shaft 6. The front end of the adjustment shaft 7 meshes with the drive shaft 6 through a bevel gear. A cam is provided at the rear end of the adjustment shaft 7. The cam facilitates the movement of a striking rod 8. The left end of the docking frame 4... On the right sides, a striking rod 8 is slidably connected to the rear side of the drive shaft 6. The top of the striking rod 8 is slidably connected to the outer wall of the cam via a push rod. A support spring 9 is fixedly connected between the outer surface of the striking rod 8 and the bottom wall of the docking frame 4. The support spring 9, in conjunction with the cam, drives the striking rod 8 to fall quickly to strike the layer of welding slag. The support spring 9 facilitates the reciprocating movement of the striking rod 8. A slag removal rod 10 is threadedly connected to the bottom left end of the docking frame 4. The slag removal rod 10 is set at an inclined angle to facilitate the thorough removal of the layer of welding slag adhering to the weld. Contact wheels 11 are rotatably connected to the left and right side walls of the bottom of the bearing frame 3. A steel brush wheel assembly 12 is fixedly connected to the right end of the bearing frame 3. A connecting frame 13 is fixedly connected to the top wall of the bearing frame 3. A guide frame 14 is slidably connected inside the top of the connecting frame 13.
[0025] In an optional embodiment, a limit ring is fixedly connected to the side wall of the docking frame 4 on the outer surface of the drive shaft 6, and a support tube is fixedly connected to the side wall of the docking frame 4 on the outer surface of the adjusting shaft 7.
[0026] In this embodiment, the limiting ring provides fixed support for the drive shaft 6, and the support tube provides fixed support for the adjusting shaft 7.
[0027] In an optional embodiment, the docking frame 4 has a sliding hole that is slidably connected to the top of the striking rod 8, the top wall of the docking frame 4 has an extension frame that is slidably connected to the side wall of the striking rod 8, the outer surface of the striking rod 8 is connected to the bottom end of the support spring 9 by a fixing ring 15, the top end of the support spring 9 is connected to the bottom wall of the docking frame 4, and the bottom end of the striking rod 8 is set in the shape of a triangular prism.
[0028] In this embodiment, the extension frame guides the striking rod 8, and the shape of the bottom end of the striking rod 8 is designed to facilitate the striking and cutting of the weld slag waste layer, which facilitates the detachment of the weld slag waste layer from the weld.
[0029] In an optional embodiment, a fixing ring 15 is fixedly connected to the left side of the inside of the bearing frame 3, and a fastening screw 16 is rotatably connected between the front end of the bearing frame 3 and the fixing ring 15. A flux recovery pipe 17 is provided between the inside of the fixing ring 15 and the left side wall of the walking frame 1. A locking pipe 18 is fixedly connected to the outer surface of the flux recovery pipe 17 at the position of the fixing ring 15. The side wall of the locking pipe 18 is provided with a groove that meshes with the fastening screw 16. One end of the contact wheel 11 is provided with a slope of 45°.
[0030] In this embodiment, the fastening screw 16 facilitates fixing the locking tube 18 inside the fixing ring 15, and at the same time, this setting facilitates adjusting the distance between the flux recovery tube 17 and the weld. The contact wheel 11 is set to fit against the side wall of the steel structure.
[0031] In an optional embodiment, the bottom end of the flux recovery pipe 17 is tapered, and a connecting ring is fixedly connected to the top left wall of the support frame 3 on the outer surface of the flux recovery pipe 17. The end of the flux recovery pipe 17 away from the support frame 3 is connected to an external flux recovery device, and the steel brush wheel assembly 12 consists of a steel brush wheel and a power motor.
[0032] In this embodiment, the flux recovery pipe 17 is designed to facilitate flux recovery, and the connecting ring serves to fix the flux recovery pipe 17.
[0033] In an optional embodiment, the welding assembly includes a wire spool support 19, a wire spool 20 is disposed inside the top of the wire spool support 19, a wire feeding mechanism 21 is bolted to the front side of the bottom end of the wire spool support 19, a welding head 22 is connected through the bottom end of the wire feeding mechanism 21, a guide frame 14 is fixedly connected to the bottom wall of the wire spool support 19, the welding head 22, the flux recovery pipe 17, the steel brush wheel assembly 12, the striking rod 8 and the slag removal rod 10 are coaxially arranged, a flux storage tank 23 is connected through the top of the right side wall of the traveling frame 1 and the welding head 22, and the flux storage tank 23 is connected to the welding head 22 through a flux delivery pipe.
[0034] In this embodiment, the coaxial arrangement of the welding head 22, flux recovery pipe 17, steel brush wheel assembly 12, striking rod 8 and slag removal rod 10 integrates grinding, welding, slag recovery and flux removal into one device, which improves welding efficiency.
[0035] In an optional embodiment, the lateral adjustment mechanism includes a translation frame 24, with an adjustment power source A25 disposed between the left end of the translation frame 24 and the lateral adjustment beam 2. The adjustment power source A25 consists of a lead screw and a motor. A connecting pipe that meshes with the outer wall of the lead screw is disposed at the left end of the translation frame 24. A threaded rod 34 is rotatably connected between the right side wall of the translation frame 24 and the top of the connecting frame 13. The vertical adjustment mechanism includes a lifting plate 26, which is fixedly connected to the left side wall of the welding wire spool bracket 19. The right side wall of the translation frame 24 is slidably connected to the lifting plate 26 by means of a guide rail. An adjustment power source B27 is fixedly connected to the top of the translation frame 24. The adjustment power source B27 consists of a gear and a motor. A toothed plate that meshes with the gear is embedded in the left side wall of the lifting plate 26.
[0036] In this embodiment, the lifting plate 26 is designed to facilitate the adjustment of the position of the welding assembly by the welding wire spool bracket 19.
[0037] In an optional embodiment, an auxiliary walking wheel 28 is provided at the top rear end of the walking frame 1. A balance rail 29 is slidably connected inside the auxiliary walking wheel 28. The balance rail 29 is connected to a steel structure column set on the ground of the welding workshop. A walking assembly 30 is provided at the bottom rear end of the walking frame 1. A ground rail 31 is slidably connected inside the walking assembly 30. The ground rail 31 is set on the ground of the welding workshop. The walking assembly 30 consists of walking wheels and a motor. Three sets of guide components are provided on the front side wall of the walking frame 1. Each guide component consists of walking wheels. A groove is opened on the side wall of the walking frame 1 at the position of the guide component. A sliding rail 32 is provided inside the guide component. A material carrier 33 is fixedly connected between the sliding rails 32 below the welding component.
[0038] In this embodiment, the auxiliary walking wheel 28 and the sliding rail 32 enable the walking frame 1 to drive the welding assembly to move stably.
[0039] During use, depending on the welding position, the power source A25 is adjusted to move the horizontal adjustment mechanism above the weld seam, while the power source B27 is adjusted to move the vertical adjustment mechanism. The vertical adjustment mechanism moves the welding assembly closer to the steel structure placed on the material carrier 33 until the welding head 22 is close to the weld seam. At the same time, the bearing frame 3 moves the contact wheel 11 to contact the steel structure. The contact wheel 11 supports the bearing frame 3 and its internal components. The steel brush wheel assembly 12 grinds the weld seam. The walking frame 1 moves the welding assembly to perform submerged arc welding. The flux recovery pipe 17 absorbs and recovers excess flux under the action of the external flux recovery equipment. At the same time, the drive motor 5 drives the drive shaft 6 to rotate. The drive shaft 6 drives the adjustment shaft 7 to rotate. The adjustment shaft 7 drives the striking rod 8 in the docking frame 4 to move up and down alternately under the action of the support spring 9. The striking rod 8 strikes and cuts off the slag waste layer. The slag removal rod 10 performs secondary cleaning of the slag waste layer that has not detached from the weld seam.
[0040] 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 this application. 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. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0041] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A submerged arc welding machine for steel structure fabrication, comprising a traveling frame (1), characterized in that: The top of the walking frame (1) is fixedly connected to a horizontal adjustment beam (2), and a horizontal adjustment mechanism is provided on the outer surface of the horizontal adjustment beam (2). A vertical adjustment mechanism is provided on the right side of the horizontal adjustment mechanism, a welding assembly is provided on the right side of the vertical adjustment mechanism, and a load-bearing frame (3) is provided at the bottom of the welding assembly. The left end of the bearing frame (3) is fixedly connected to the docking frame (4), and the front side wall of the bearing frame (3) is inlaid with a drive motor (5). The left end of the output shaft of the drive motor (5) is fixedly connected to the drive shaft (6) in front of the docking frame (4). Two bevel gears are provided on the outside of the drive shaft (6). The docking frame (4) is rotatably connected to the adjustment shaft (7) in the rear side of the drive shaft (6). The front end of the adjustment shaft (7) meshes with the drive shaft (6) through the bevel gear. The rear end of the adjustment shaft (7) is provided with a cam. The left and right sides inside the docking frame (4) are slidably connected to the knocking rod (8) in the rear side of the drive shaft (6). The top of the knocking rod (8) is slidably connected to the outer wall of the cam through the push rod. A support spring (9) is fixedly connected between the outer surface of the striking rod (8) and the bottom wall of the docking frame (4). A slag removal rod (10) is threadedly connected to the bottom left end of the docking frame (4). The slag removal rod (10) is set at an inclined angle. The bottom left and right side walls of the bearing frame (3) are rotatably connected to contact wheels (11), the right end of the bearing frame (3) is fixedly connected to a steel brush wheel assembly (12), the top wall of the bearing frame (3) is fixedly connected to a connecting frame (13), and the top of the connecting frame (13) is slidably connected to a guide frame (14).
2. The submerged arc welding machine for steel structure fabrication according to claim 1, characterized in that: The side wall of the docking frame (4) is fixedly connected to a limit ring on the outer surface of the drive shaft (6), and the side wall of the docking frame (4) is fixedly connected to a support tube on the outer surface of the adjustment shaft (7).
3. The submerged arc welding machine for steel structure fabrication according to claim 2, characterized in that: The docking frame (4) has a sliding hole inside that is slidably connected to the top of the striking rod (8). The top wall of the docking frame (4) is provided with an extension frame that is slidably connected to the side wall of the striking rod (8). The outer surface of the striking rod (8) is connected to the bottom end of the support spring (9) by a fixing ring. The top end of the support spring (9) is connected to the bottom wall of the docking frame (4). The bottom end of the striking rod (8) is set in the shape of a triangular prism.
4. The submerged arc welding machine for steel structure fabrication according to claim 3, characterized in that: A fixing ring (15) is fixedly connected to the left side of the bearing frame (3). A fastening screw (16) is rotatably connected between the front end of the bearing frame (3) and the fixing ring (15). A flux recovery pipe (17) is provided between the inside of the fixing ring (15) and the left side wall of the walking frame (1). A locking pipe (18) is fixedly connected to the outer surface of the flux recovery pipe (17) at the position of the fixing ring (15). A groove is opened on the side wall of the locking pipe (18) to engage with the fastening screw (16). A 45° slope is provided at one end of the contact wheel (11).
5. The submerged arc welding machine for steel structure fabrication according to claim 4, characterized in that: The bottom end of the flux recovery pipe (17) is tapered. The top left wall of the support frame (3) is fixedly connected to the outer surface of the flux recovery pipe (17) with a connecting ring. The end of the flux recovery pipe (17) away from the support frame (3) is connected to the external flux recovery equipment. The steel brush wheel assembly (12) consists of a steel brush wheel and a power motor.
6. The submerged arc welding machine for steel structure fabrication according to claim 5, characterized in that: The welding assembly includes a wire spool support (19), a wire spool (20) is provided inside the top of the wire spool support (19), a wire feeding mechanism (21) is bolted to the front side of the bottom end of the wire spool support (19), a welding head (22) is connected through the bottom end of the wire feeding mechanism (21), and a guide frame (14) is fixedly connected to the bottom wall of the wire spool support (19).
7. The submerged arc welding machine for steel structure fabrication according to claim 6, characterized in that: The welding head (22), flux recovery pipe (17), steel brush wheel assembly (12), striking rod (8) and slag removal rod (10) are coaxially arranged. A flux storage box (23) is connected between the top of the right side wall of the walking frame (1) and the welding head (22). The flux storage box (23) is connected to the welding head (22) through a flux delivery pipe.
8. The submerged arc welding machine for steel structure fabrication according to claim 7, characterized in that: The lateral adjustment mechanism includes a translation frame (24), an adjustment power source A (25) is provided between the left end of the translation frame (24) and the lateral adjustment beam (2), the adjustment power source A (25) is composed of a lead screw and a motor, the left end of the translation frame (24) is provided with a connecting pipe that meshes with the outer wall of the lead screw, the right side wall of the translation frame (24) is rotatably connected with the top of the connecting frame (13) and a threaded rod (34). The vertical adjustment mechanism includes a lifting plate (26), the lifting plate (26) is fixedly connected to the left side wall of the welding wire spool bracket (19), the right side wall of the translation frame (24) is slidably connected to the lifting plate (26) by setting a guide rail, the top of the translation frame (24) is fixedly connected with an adjustment power source B (27), the adjustment power source B (27) is composed of a gear and a motor, the left side wall of the lifting plate (26) is inlaid with a toothed plate that meshes with the gear.
9. The submerged arc welding machine for steel structure fabrication according to claim 8, characterized in that: The walking frame (1) is provided with an auxiliary walking wheel (28) at the top rear end. The auxiliary walking wheel (28) is slidably connected to a balance rail (29). The balance rail (29) is connected to a steel structure column set on the ground of the welding workshop. The walking frame (1) is provided with a walking assembly (30) at the bottom rear end. The walking assembly (30) is slidably connected to a ground rail (31). The ground rail (31) is set on the ground of the welding workshop. The walking assembly (30) is composed of a walking wheel and a motor. The walking frame (1) is provided with three sets of guide components on the front side wall. Each guide component is composed of a walking wheel. The side wall of the walking frame (1) is provided with a groove at the position of the guide component. The guide component is provided with a sliding rail (32). The sliding rail (32) is fixedly connected to a material rack (33) below the welding component.
10. The method of using the submerged arc welding machine for steel structure fabrication according to any one of claims 1-9, characterized in that: Includes the following steps: S1: First, according to the welding position, adjust the power source A (25) to drive the horizontal adjustment mechanism to move above the welding seam, and at the same time adjust the power source B (27) to drive the vertical adjustment mechanism to move. The vertical adjustment mechanism drives the welding assembly to approach the steel structure placed on the material rack (33). S2: Then the welding head (22) approaches the weld, and at the same time the bearing frame (3) drives the contact wheel (11) to contact the steel structure. The contact wheel (11) supports the bearing frame (3) and internal components. S3: Then the steel brush wheel assembly (12) grinds the weld seam, the walking frame (1) drives the welding assembly to perform submerged arc welding under the guidance of the sliding rail (32) and the auxiliary walking wheel (28), and the flux recovery pipe (17) absorbs and recovers excess flux under the action of the external flux recovery equipment. S4: Finally, the drive motor (5) drives the drive shaft (6) to rotate, the drive shaft (6) drives the adjustment shaft (7) to rotate, the adjustment shaft (7) drives the striking rod (8) in the docking frame (4) to move up and down alternately under the action of the support spring (9), the striking rod (8) strikes and cuts off the slag waste layer, and the slag removal rod (10) performs secondary cleaning on the slag waste layer that has not detached from the weld.