Material welding apparatus and method for construction engineering

Abstract

This invention discloses a material welding equipment and method for construction engineering, relating to the field of welding technology. The equipment includes a base plate with a welding assembly on it. A replacement position is located on one side of the welding assembly, allowing for the detachable connection of auxiliary welding components for plates, pipes, and mesh. The welding method includes: assembling and disassembling the corresponding auxiliary assembly at the replacement position according to the type of material to be welded; clamping and positioning the plate, pipe, or mesh workpiece and aligning the joints; starting the welding assembly to perform welding; releasing the clamps and removing the workpiece after welding; cleaning the equipment; and repeating the process. This invention employs a modular auxiliary assembly design, allowing for quick replacement of tooling at the replacement position, reducing the risk of workpiece slippage and personnel collisions, improving workpiece stability and welding accuracy, and reducing structural and construction safety risks caused by welding failures. The equipment is compact, highly versatile, and suitable for welding various types of components in construction engineering.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a material welding equipment and method for construction engineering. Background Technology

[0002] In the construction process, welding of metal components such as plates, pipes, and space frames is an indispensable processing step. Currently, welding operations on construction sites generally suffer from problems such as poor equipment versatility, insufficient safety protection, and high operational risks. Most existing welding equipment is designed for single types of workpieces. When welding plates, pipes, or space frames, different equipment or temporary fixtures need to be changed. Frequent disassembly and assembly not only reduces construction efficiency but also easily leads to workpiece displacement and welding misalignment due to insecure fixture fixing. In some cases, the workpiece may even slip and collide with the operator during welding, posing a mechanical injury safety hazard.

[0003] In summary, existing welding equipment for construction projects cannot balance versatility, welding quality, and construction safety, and cannot meet the safe operation requirements for welding various types of components on construction sites. There is an urgent need for welding equipment for construction projects to reduce the safety risks of construction welding operations from the source. Summary of the Invention

[0004] This invention provides a material welding device and method for building engineering, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A material welding device for construction engineering includes a base plate, on which a welding assembly is disposed. A replacement position is provided on one side of the welding assembly. The replacement position is disposed on the base plate, and a plate welding auxiliary assembly, a pipe welding auxiliary assembly, and a mesh welding auxiliary assembly are detachably connected to the replacement position.

[0007] The base plate is equipped with casters.

[0008] A negative pressure air intake is provided on one side of the replacement position.

[0009] Preferably, the plate welding auxiliary component includes a first fixing plate, which is detachably mounted on the replacement position. The first fixing plate is diagonally rotatably connected to two sets of fixing sleeves. One end of the rotating frame is fixedly connected to the fixing sleeve, and the other end of the rotating frame is rotatably connected to the output end of a first telescopic rod. The first telescopic rod is rotatably connected to the side wall of the first fixing plate.

[0010] A fixing rod is fixedly connected inside the fixing sleeve, and a fixing clamp is fixedly connected to the upper end of the fixing rod.

[0011] A bracket is fixedly connected to the first fixed plate, and a movable roller is rotatably connected to the bracket. The movable roller is used to move the flat weldment.

[0012] One end of the movable roller is fixedly connected to a fixed disk, and a locking gear is fixedly connected to the fixed disk;

[0013] A locking bracket is provided on one side of the bracket. The locking bracket is fixedly connected to the first fixing plate. A trigger rod and a locking tooth are rotatably connected to the locking bracket. The trigger rod and the locking tooth are fixedly connected.

[0014] One end of the locking spring is fixedly connected to the locking tooth, and the other end of the locking spring is fixedly connected to the first fixing plate.

[0015] Preferably, the pipe welding auxiliary component includes a second fixing plate, which is detachably connected to the replacement position. The second fixing plate is provided with a sliding groove, and a first screw is rotatably connected in the sliding groove. A slider is threadedly connected to the first screw, and the slider is slidably connected to the sliding groove.

[0016] A fixing frame is slidably connected to the second fixing plate, and the fixing frame is fixedly connected to the slider. The fixing frame is provided with fixing holes.

[0017] The fixed frame is fixedly connected to two sides with a second telescopic rod. The output end of the second telescopic rod is fixedly connected to a fixed plate. The two ends of the fixed plate are rotatably connected to a rotating frame. The end of the rotating frame is rotatably connected to a rotating rod.

[0018] A torsion spring is provided at the connection between the fixed plate and the rotating frame;

[0019] The fixed frame is provided with fixed grooves at both the top and bottom. A sliding frame is slidably connected in the fixed groove, and a spring is provided between the sliding frame and the fixed groove.

[0020] The second fixing plate is provided with a rack;

[0021] A fixing bar is fixedly connected to the lower side of the fixing frame, and a follower gear is rotatably connected to the fixing bar, the follower gear meshing with the rack;

[0022] A second screw is fixedly connected to the follower gear, and a detection frame is threadedly connected to the second screw. The detection frame is slidably connected to the fixed frame.

[0023] The fixing frame is equipped with an elastic pressure plate.

[0024] Preferably, the mesh welding auxiliary component is provided in several groups, and the mesh welding auxiliary component includes a fixing block. The upper and lower end faces of the fixing block are fixedly connected to a fixing gear, and the fixing gear located on the lower side is detachably connected to the replacement position.

[0025] Four sets of rotating gears are rotatably connected to the circumference of the fixed block. Rotating shafts are fixedly connected to the rotating gears and rotatably connected to the fixed block.

[0026] Both the fixed gear and the rotating gear are provided with mounting grooves, and fixing hoops and / or fixing buckles can be detachably installed in the mounting grooves.

[0027] Two sets of locking discs are provided at the diagonal of the fixed block. An elastic locking rod is fixedly connected to the locking disc. The elastic locking rod is slidably inserted into the fixed sleeve. The fixed sleeve is rotatably connected to the fixed block.

[0028] A tension spring is provided between the elastic locking rod and the fixed sleeve;

[0029] The locking disc is provided with locking teeth at its edge, which can mesh with the adjacent fixed gear and rotating gear on the fixed block.

[0030] A method for welding materials in construction engineering, using the aforementioned material welding equipment for construction engineering, includes the following steps:

[0031] S1. Based on the type of building material to be welded, disassemble and assemble matching plate, pipe or mesh welding auxiliary components at the replacement position;

[0032] S2. Place the corresponding sheet metal, pipe, or mesh workpiece on the auxiliary assembly, clamp and fix the workpiece using the clamping and positioning structure, and align the welding seam.

[0033] S3. Start the welding assembly and perform welding processing on the joint of the workpiece in accordance with the construction welding specifications;

[0034] S4. After welding is completed, pause the equipment, loosen the clamping structure of the auxiliary components, and remove the formed weldment.

[0035] S5. Clean the welding slag and debris from the equipment surface, replace auxiliary components as needed, and proceed with the next batch of welding operations.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] The equipment replacement unit of this application allows for the quick disassembly and assembly of three auxiliary components adapted to different workpieces without replacing the entire machine. This reduces the risk of workpiece slippage and personnel collision caused by tooling disassembly and assembly. The modular design of the three auxiliary components allows the equipment to be adapted to welding of various types of components in construction projects, avoiding unstable workpiece fixation and welding misalignment due to tooling mismatch, thereby reducing structural and construction safety risks caused by welding failure. The overall equipment structure is compact. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the plate welding auxiliary component structure of the present invention;

[0040] Figure 3 This is a partial structural diagram of the plate welding auxiliary component of the present invention;

[0041] Figure 4 This is a schematic diagram of the pipe welding auxiliary component structure of the present invention;

[0042] Figure 5 This is a partial cross-sectional view of the pipe welding auxiliary component of the present invention;

[0043] Figure 6 This is a cross-sectional view of the fixing frame structure of the present invention;

[0044] Figure 7 This is a partial structural diagram of the pipe welding auxiliary component of the present invention;

[0045] Figure 8 This is an exploded view of the mesh welding auxiliary component structure of the present invention;

[0046] Figure 9 This is a schematic diagram of the mesh welding auxiliary component structure of the present invention;

[0047] Figure 10 This is a schematic diagram of the fixing block structure of the present invention;

[0048] Figure 11 This is a schematic diagram of the locking disc structure of the present invention.

[0049] In the diagram: 1. Base plate; 2. Welding assembly; 3. Replacement position; 4. Moving wheel; 5. Negative pressure suction port; 6. First fixed plate; 7. First telescopic rod; 8. Rotating frame; 9. Fixed clamp rod; 10. Fixed sleeve; 11. Fixed plate; 12. Bracket; 13. Flat welded part; 14. Locking bracket; 15. Moving roller; 16. Locking gear; 17. Trigger rod; 18. Locking tooth; 19. Locking spring; 20. Second fixed plate; 21. Slide groove; 22. First screw; 23. Slider; 24. Fixing hole; 25. 1. Fixed frame; 26. Second telescopic rod; 27. Follower gear; 28. Rack; 29. ​​Fixed strip; 30. Detection frame; 31. Elastic pressure plate; 32. Fixed plate; 33. Rotating frame; 34. Rotating rod; 35. Fixed groove; 36. Sliding frame; 37. Second screw; 38. Fixed block; 39. Fixed gear; 40. Rotating gear; 41. Rotating shaft; 42. Placement groove; 43. Fixed hoop; 44. Fixed buckle; 45. Locking disc; 46. Fixed sleeve; 47. Locking tooth; 48. Elastic locking rod. Detailed Implementation

[0050] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the invention. They are merely used to distinguish protective components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When 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 by this invention.

[0051] Example 1:

[0052] Please refer to Figure 1 A material welding device for construction engineering includes a base plate 1, on which a welding assembly 2 is disposed. A replacement position 3 is disposed on one side of the welding assembly 2. The replacement position 3 is disposed on the base plate 1, and a plate welding auxiliary assembly, a pipe welding auxiliary assembly, and a mesh welding auxiliary assembly are detachably connected to the replacement position 3.

[0053] The detachable structure between replacement position 3 and the plate welding auxiliary component, pipe welding auxiliary component, and mesh welding auxiliary component can be fixed with bolts and nuts;

[0054] Welding component 2 can be selected from different existing welding equipment according to actual welding requirements;

[0055] The base plate 1 is provided with casters 4;

[0056] A negative pressure air intake 5 is provided on one side of the replacement position 3. The negative pressure air intake 5 can be connected to an existing fan for air intake operation.

[0057] The working principle and beneficial effects of the above scheme are as follows:

[0058] The equipment in this application can be flexibly transported to any construction site via the casters 4 under the base plate 1, eliminating the need to drag cables on-site and avoiding electric shock accidents caused by short circuits due to cable wear. Once the equipment reaches the designated location, it can be fixed in place, improving the convenience and safety of on-site operations. The interchangeable parts 3 allow for the quick assembly and disassembly of three auxiliary components adapted to different workpieces without replacing the entire machine, reducing the risk of workpiece slippage and personnel collisions caused by tooling disassembly and assembly. The negative pressure suction port 5 works continuously, collecting harmful fumes and spatter from welding in real time, preventing fumes from polluting the construction environment and harming personnel health. It also prevents high-temperature welding slag from igniting surrounding flammable materials and causing fires, eliminating safety hazards caused by welding fumes and slag at the source. The modular design of the three auxiliary components allows the equipment to be adapted to welding various types of components in construction projects, avoiding unstable workpiece fixation and welding misalignment due to tooling mismatch, thereby reducing structural and construction safety risks caused by welding failures. The overall equipment structure is compact.

[0059] Example 2:

[0060] A method for welding materials in construction engineering, using the aforementioned material welding equipment for construction engineering, includes the following steps:

[0061] S1. Based on the type of building material to be welded, disassemble and assemble matching plate, pipe or mesh welding auxiliary components at the replacement position;

[0062] S2. Place the corresponding sheet metal, pipe, or mesh workpiece on the auxiliary assembly, clamp and fix the workpiece using the clamping and positioning structure, and align the welding seam.

[0063] S3. Start the welding assembly and perform welding processing on the joint of the workpiece in accordance with the construction welding specifications;

[0064] S4. After welding is completed, pause the equipment, loosen the clamping structure of the auxiliary components, and remove the formed weldment.

[0065] S5. Clean the welding slag and debris from the equipment surface, replace auxiliary components as needed, and proceed with the next batch of welding operations.

[0066] The working principle and beneficial effects of the above scheme are as follows:

[0067] The welding method described in this invention is implemented using modular welding equipment. First, the corresponding tooling is quickly changed according to the type of workpiece, shortening assembly time and preventing workpiece detachment and injury due to unreliable tooling fixation. Then, a dedicated clamping mechanism reliably positions the workpiece, ensuring accurate alignment of the weld joint and preventing welding deviations that could lead to structural imbalances and safety issues, while also preventing workpiece displacement or slippage during welding. Next, welding operations are carried out according to construction standards, with the equipment's built-in negative pressure suction port 5 collecting and treating welding fumes and slag centrally to eliminate fire hazards and occupational health risks. After welding, the machine is stopped before releasing the clamps and removing the workpiece, avoiding mechanical damage and high-temperature burns during equipment operation. Finally, welding slag and debris are promptly cleaned to ensure stable equipment operation and safety in subsequent operations.

[0068] Example 3:

[0069] Please refer to Figure 2 , Figure 3 Based on Embodiment 1, the plate welding auxiliary component includes a first fixing plate 6, which is detachably mounted on the replacement position 3. Two sets of fixing sleeves 10 are diagonally rotatably connected to the first fixing plate 6. One end of a rotating frame 8 is fixedly connected to the fixing sleeve 10, and the other end of the rotating frame 8 is rotatably connected to the output end of a first telescopic rod 7. The first telescopic rod 7 is rotatably connected to the side wall of the first fixing plate 6.

[0070] A fixing rod is fixedly connected inside the fixing sleeve 10, and a fixing lever 9 is fixedly connected to the upper end of the fixing rod.

[0071] A bracket 12 is fixedly connected to the first fixed plate 6, and a movable roller 15 is rotatably connected to the bracket 12. The movable roller 15 is used to move the flat plate weldment 13.

[0072] One end of the movable roller 15 is fixedly connected to a fixed disk 11, and a locking gear 16 is fixedly connected to the fixed disk 11.

[0073] A locking bracket 14 is provided on one side of the bracket 12. The locking bracket 14 is fixedly connected to the first fixing plate 6. A trigger rod 17 and a locking tooth 18 are rotatably connected to the locking bracket 14. The trigger rod 17 and the locking tooth 18 are fixedly connected.

[0074] One end of a locking spring 19 is fixedly connected to the locking tooth 18, and the other end of the locking spring 19 is fixedly connected to the first fixing plate 6.

[0075] The working principle and beneficial effects of the above scheme are as follows:

[0076] The plate welding auxiliary component of this application is quickly installed at the replacement position 3 via the first fixed plate 6, which is convenient and secure, avoiding safety accidents caused by tooling loosening. The first telescopic rod 7 drives the rotating frame 8 and the fixed sleeve 10 to rotate, which drives the fixed clamping rod 9 to smoothly clamp the flat welding workpiece 13 from the diagonal direction. The moving roller 15 can smoothly transport the flat welding workpiece 13 to the welding position. The rolling transport method is labor-saving and convenient. After the rotating frame 8 rotates into place, it contacts the trigger rod 17, which overcomes the tension of the locking spring 19, so that the locking gear 16 and the locking clamping tooth 18 form a self-locking structure, preventing the moving roller 15 from rotating during welding, avoiding plate displacement and welding deviation, and preventing workpiece sliding and collision damage. It comprehensively ensures the safety of the entire process of plate feeding, conveying and welding. The negative pressure suction port 5 collects the welding slag and fumes of plate welding at the same time, further eliminating fire and health safety hazards. The component is designed with a safety structure in all aspects of clamping, conveying and locking, which effectively reduces the safety risks of plate welding.

[0077] Example 4:

[0078] Please refer to Figures 4-7 Based on Embodiment 1, the pipe welding auxiliary component includes a second fixing plate 20, which is detachably connected to the replacement position 3. A sliding groove 21 is provided on the second fixing plate 20, and a first screw 22 is rotatably connected in the sliding groove 21. A slider 23 is threadedly connected to the first screw 22, and the slider 23 is slidably connected to the sliding groove 21.

[0079] A fixing frame 25 is slidably connected to the second fixing plate 20. The fixing frame 25 is fixedly connected to the slider 23, and a fixing hole 24 is provided on the fixing frame 25.

[0080] The fixed frame 25 is fixedly connected to two sides of a second telescopic rod 26. The output end of the second telescopic rod 26 is fixedly connected to a fixed plate 32. The two ends of the fixed plate 32 are rotatably connected to a rotating frame 33. The end of the rotating frame 33 is rotatably connected to a rotating rod 34.

[0081] A torsion spring is provided at the connection between the fixed plate 32 and the rotating frame 33;

[0082] The fixing frame 25 is provided with fixing grooves 35 on both the top and bottom. A sliding frame 36 is slidably connected in the fixing groove 35, and a spring is provided between the sliding frame 36 and the fixing groove 35.

[0083] The second fixing plate 20 is provided with a rack 28;

[0084] A fixing strip 29 is fixedly connected to the lower side of the fixing frame 25, and a follower gear 27 is rotatably connected to the fixing strip 29. The follower gear 27 meshes with the rack 28.

[0085] A second screw 37 is fixedly connected to the follower gear 27, and a detection frame 30 is threadedly connected to the second screw 37. The detection frame 30 is slidably connected to the fixed frame 25.

[0086] An elastic pressure plate 31 is provided on the fixing frame 25, and the elastic pressure plate 31 can be made of water-absorbing sponge.

[0087] The working principle and beneficial effects of the above scheme are as follows:

[0088] The pipe welding auxiliary component of this application is quickly assembled via the second fixing plate 20, adapting to the welding needs of various pipes in construction projects and avoiding safety hazards caused by temporary fixtures. The first screw 22 drives the slider 23 and the fixing frame 25 to move smoothly, achieving precise adjustment of the pipe welding position. The adjustment process is free from violent shaking, preventing the pipe from falling off and injuring people. The fixing hole 24 initially positions the pipe. The second telescopic rod 26 drives the fixing plate 32, the rotating frame 33, and the rotating rod 34 to form a flexible clamping structure. The torsion spring and spring provide buffering force, ensuring that the pipe is clamped firmly and avoiding deformation and breakage caused by rigid clamping. The sliding frame 36 further limits the pipe to prevent concentricity during welding. The follower gear 27 meshes with the rack 28 to cooperate with the detection frame 30 to monitor the coaxiality of the pipe welding. During the detection, a set of fixing frames 25 clamps the first end of the pipe. Another set moves along the pipe towards the end. During the movement, the follower gear 27 drives the second screw 37 to rotate, which moves the elastic pressure plate 31 towards the center. The elastic pressure plate 31 slides over the surface of the pipe fitting. By immersing the elastic pressure plate 31 in ink, the ink will leave a uniform mark on the surface of the pipe fitting that changes from narrow to wide. When the ink mark changes abruptly, it indicates that the pipe fitting may not be concentrically fixed. At this time, the fixing status of the first end of the pipe fitting should be checked. When the ink mark does not change abruptly, the fixing bracket 25 at the end of the pipe fitting is moved to clamp the end of the pipe fitting to avoid welding deviation causing subsequent structural safety risks. The entire pipe clamping and adjustment process does not require manual assistance. Operators are kept away from the high-temperature welding area to prevent burns and mechanical injuries. The negative pressure air intake vent 5 simultaneously treats welding slag and fumes to eliminate fire hazards and fully ensure the safety of pipe welding operations.

[0089] Example 5:

[0090] Please refer to Figures 8-11 Based on embodiment 1, the mesh welding auxiliary component is provided with several sets. The mesh welding auxiliary component includes a fixing block 38. The upper and lower end faces of the fixing block 38 are fixedly connected with fixing gears 39. The fixing gear 39 located on the lower side is detachably connected to the replacement position 3.

[0091] Four sets of rotating gears 40 are rotatably connected to the circumferential surface of the fixed block 38. A rotating shaft 41 is fixedly connected to the rotating gear 40 and is rotatably connected to the fixed block 38.

[0092] Both the fixed gear 39 and the rotating gear 40 are provided with mounting grooves 42, and a fixing hoop 43 and / or a fixing buckle 44 can be detachably installed in the mounting grooves 42.

[0093] Two sets of locking discs 45 are provided at opposite corners of the fixing block 38. An elastic locking rod 48 is fixedly connected to the locking disc 45. The elastic locking rod 48 is slidably inserted into the fixing sleeve 46. The fixing sleeve 46 is rotatably connected to the fixing block 38.

[0094] A tension spring is provided between the elastic locking rod 48 and the fixed sleeve 46;

[0095] The locking disc 45 is provided with locking teeth 47 at its edge, and the locking teeth 47 can mesh with the adjacent fixed gear 39 and rotating gear 40 on the fixed block 38.

[0096] The working principle and beneficial effects of the above scheme are as follows:

[0097] The mesh welding auxiliary component of this application adopts a multi-modal design, which can be flexibly arranged according to the size of the mesh frame. The fixed gear 39 is quickly installed on the replacement position 3, and the connection is firm and does not loosen, avoiding the safety accident caused by the tooling falling off during mesh frame welding. The fixed clamp 43 and the fixed buckle 44 are detachable to adapt to mesh frame members of different specifications, quickly fix the members and clamp them reliably. The rotating gear 40 can adjust the angle to adapt to mesh frame welding at different angles. After adjustment, the locking disc 45, under the action of the tension spring, forms a self-locking mechanism through the locking teeth 47 meshing with the fixed gear 39 and the rotating gear 40, preventing the mesh frame from deforming due to angle deviation during welding, and providing elastic locking. Rod 48 provides cushioning to prevent rigid impact damage to components during self-locking, while also preventing operator hand injuries. Multiple components work together to secure the space frame members from all angles, eliminating the risk of loosening, displacement, or slippage during welding. No manual support is required during welding, and operators are kept away from the high-temperature welding area, effectively preventing burns. Negative pressure air intake 5 simultaneously collects welding slag and fumes from the space frame welding, preventing slag splashes that could cause fires. This component is designed with a multi-angle adjustable, self-locking safety structure specifically for the welding of space frame structures, significantly reducing the safety risks of mesh welding and improving the welding quality and construction safety of the space frame.

[0098] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A material welding device for construction engineering, characterized in that, Includes a base plate (1), on which a welding assembly (2) is provided, and a replacement position (3) is provided on one side of the welding assembly (2). The replacement position (3) is located on the base plate (1), and a plate welding auxiliary assembly, a pipe welding auxiliary assembly, and a mesh welding auxiliary assembly are detachably connected to the replacement position (3).

2. The material welding equipment for construction engineering according to claim 1, characterized in that, The base plate (1) is provided with a movable wheel (4); A negative pressure air intake (5) is provided on one side of the replacement position (3).

3. The material welding equipment for construction engineering according to claim 1, characterized in that, The plate welding auxiliary component includes a first fixed plate (6), which is detachably mounted on the replacement position (3). The first fixed plate (6) is diagonally rotatably connected to two sets of fixed sleeves (10). One end of a rotating frame (8) is fixedly connected to the fixed sleeve (10), and the other end of the rotating frame (8) is rotatably connected to the output end of a first telescopic rod (7). The first telescopic rod (7) is rotatably connected to the side wall of the first fixed plate (6). A fixing rod is fixedly connected inside the fixing sleeve (10), and a fixing clamp rod (9) is fixedly connected to the upper end of the fixing rod.

4. The material welding equipment for construction engineering according to claim 3, characterized in that, A bracket (12) is fixedly connected to the first fixed plate (6), and a movable roller (15) is rotatably connected to the bracket (12). The movable roller (15) is used to move the flat plate weldment (13). One end of the movable roller (15) is fixedly connected to a fixed disk (11), and a locking gear (16) is fixedly connected to the fixed disk (11). A locking bracket (14) is provided on one side of the bracket (12). The locking bracket (14) is fixedly connected to the first fixing plate (6). A trigger rod (17) and a locking tooth (18) are rotatably connected to the locking bracket (14). The trigger rod (17) and the locking tooth (18) are fixedly connected. One end of a locking spring (19) is fixedly connected to the locking tooth (18), and the other end of the locking spring (19) is fixedly connected to the first fixing plate (6).

5. The material welding equipment for construction engineering according to claim 1, characterized in that, The tube welding auxiliary component includes a second fixing plate (20), which is detachably connected to the replacement position (3). The second fixing plate (20) is provided with a sliding groove (21), and a first screw (22) is rotatably connected in the sliding groove (21). A slider (23) is threadedly connected to the first screw (22), and the slider (23) is slidably connected to the sliding groove (21). A fixing frame (25) is slidably connected to the second fixing plate (20). The fixing frame (25) is fixedly connected to the slider (23). The fixing frame (25) is provided with fixing holes (24).

6. The material welding equipment for construction engineering according to claim 5, characterized in that, The fixed frame (25) is fixedly connected to two sides of a second telescopic rod (26), and a fixed plate (32) is fixedly connected to the output end of the second telescopic rod (26). A rotating frame (33) is rotatably connected to both ends of the fixed plate (32), and a rotating rod (34) is rotatably connected to the end of the rotating frame (33). A torsion spring is provided at the connection between the fixed plate (32) and the rotating frame (33); The fixing frame (25) is provided with fixing grooves (35) on both the top and bottom. A sliding frame (36) is slidably connected in the fixing groove (35), and a spring is provided between the sliding frame (36) and the fixing groove (35).

7. A material welding device for construction engineering according to claim 6, characterized in that, A rack (28) is provided on the second fixing plate (20); A fixing strip (29) is fixedly connected to the lower side of the fixing frame (25), and a follower gear (27) is rotatably connected to the fixing strip (29). The follower gear (27) meshes with the rack (28). A second screw (37) is fixedly connected to the follower gear (27), and a detection frame (30) is threadedly connected to the second screw (37). The detection frame (30) is slidably connected to the fixed frame (25). An elastic pressure plate (31) is provided on the fixing frame (25).

8. The material welding equipment for construction engineering according to claim 1, characterized in that, The mesh welding auxiliary component is provided in several groups. The mesh welding auxiliary component includes a fixing block (38). The upper and lower end faces of the fixing block (38) are fixedly connected to a fixing gear (39). The fixing gear (39) located on the lower side is detachably connected to the replacement position (3). Four sets of rotating gears (40) are rotatably connected to the circumference of the fixed block (38), and a rotating shaft (41) is fixedly connected to the rotating gears (40), and the rotating shaft (41) is rotatably connected to the fixed block (38). The fixed gear (39) and the rotating gear (40) are each provided with a mounting groove (42), and a fixing hoop (43) and / or a fixing buckle (44) can be detachably installed in the mounting groove (42).

9. A material welding device for construction engineering according to claim 8, characterized in that, Two sets of locking discs (45) are provided at the diagonal of the fixing block (38). An elastic locking rod (48) is fixedly connected to the locking disc (45). The elastic locking rod (48) is slidably inserted into the fixing sleeve (46). The fixing sleeve (46) is rotatably connected to the fixing block (38). A tension spring is provided between the elastic locking rod (48) and the fixed sleeve (46); The locking disc (45) is provided with locking teeth (47) at its edge, and the locking teeth (47) can mesh with the adjacent fixed gear (39) and rotating gear (40) on the fixed block (38).

10. A method for welding materials in construction engineering, using a material welding device for construction engineering as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Based on the type of building material to be welded, disassemble and assemble matching plate, pipe or mesh welding auxiliary components at the replacement position; S2. Place the corresponding sheet metal, pipe, or mesh workpiece on the auxiliary assembly, clamp and fix the workpiece using the clamping and positioning structure, and align the welding seam. S3. Start the welding assembly and perform welding processing on the joint of the workpiece in accordance with the construction welding specifications; S4. After welding is completed, pause the equipment, loosen the clamping structure of the auxiliary components, and remove the formed weldment. S5. Clean the welding slag and debris from the equipment surface, replace auxiliary components as needed, and proceed with the next batch of welding operations.

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