Building steel structure welding anti-deformation assembly and using method thereof

Abstract

The invention discloses a building steel structure welding anti-deformation assembly and a using method thereof. The building steel structure welding anti-deformation assembly comprises a base. Fixing frames are installed on the two sides of the top of the base, fixing devices are installed on the top sides of the fixing frames, a supporting frame is installed in the middle of the base, a welding device is installed on the inner top of the supporting frame, fixing columns are installed on the two sides of the supporting frame, and adjusting devices are installed on the top sides of the fixing columns. A worker starts a fixing device to fix a steel structure needing to be welded, the worker starts a second driving motor to enable clamping plates to move relatively, so that the welding position of the steel structure can be fixed, the worker starts a third driving motor to enable a threaded rod to rotate, and two threaded blocks can move in the same direction; therefore, the height of the welding position of the steel structure can be adjusted, after butt joint is completed, deformation of the steel structure during welding can be reduced, and the welding effect is improved.

Description

Technical Field

[0001] The invention belongs to the field of steel processing, and in particular relates to a welding anti-deformation component for a building steel structure and a use method thereof. Background Art

[0002] Steel is a material with a certain shape, size and performance made from steel ingots, billets or steel through pressure processing. Steel is used in engineering construction. During the use of steel, it may be unable to be used due to its short size. Two or more steels need to be welded together to increase the length of the steel. At present, when the staff operates the welding equipment to weld the steel, they first need a special anti-deformation component for steel structure welding to limit the position of the welded steel, which prevents the deformation of the steel caused by external factors during the welding process of the welding equipment on the steel structure.

[0003] The existing anti-deformation assembly for steel structure welding disclosed in CN221389601U, during use, limits the outer ends of two steels by two clamping blocks so that the ends of the two steels are in contact. However, when the length of the steel is longer, the stability of the position of the two steels limited by the two clamping blocks will be worse. When welding, the positions of the butt joints of the two steels will be different, so that the welding will have deviations, resulting in unsatisfactory welding effects and affecting the welding effects.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a welding anti-deformation component for a building steel structure and a method for using the same, thereby solving the technical problems in the prior art that the existing anti-deformation components have a simple structure and an unsatisfactory anti-deformation effect.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A welding anti-deformation component for a building steel structure, comprising a base;

[0008] A fixing frame is installed on both sides of the top of the base, a fixing device is installed on the top side of the fixing frame, a supporting frame is installed in the middle of the base, a welding device is installed on the inner top of the supporting frame, fixing columns are installed on both sides of the supporting frame, and an adjusting device is installed on the top side of the fixing column;

[0009] The adjusting device includes a driving motor three, a sliding groove one is provided inside the fixed column, the sliding groove one is vertically arranged, the driving motor three is installed on the top of the fixed column, the output end of the driving motor three extends to the inside of the fixed column, the internal rotation of the fixed column is matched with a threaded rod, the threaded rod is connected to the output end of the driving motor three, the internal sliding match of the sliding groove one has two threaded blocks, the threaded block is threadedly matched with the threaded rod, the threaded block passes through the sliding groove one and is equipped with a driving motor two on one side of the fixed column, and the other side of the threaded block is equipped with a fixed block, the fixed block is provided with a sliding groove three, a splint is slidably matched with two opposite fixed blocks through the sliding groove three, a transmission assembly is installed inside the fixed block, and the transmission assembly matches the splint.

[0010] Preferably, the transmission assembly includes a transmission rod 1, which is rotatably engaged inside the threaded block, the output end of the driving motor 2 is fixedly connected to the transmission rod 1, the outer surface of the transmission rod 1 extending to the inside of the fixed block is equipped with a bevel gear 4, the inside of the fixed block is rotatably engaged with the transmission rod 2, the end of the transmission rod 2 close to the transmission rod 1 is equipped with a bevel gear 5, the bevel gear 5 is meshed with the bevel gear 4, the surface thread of the transmission rod 2 is engaged with the sliding block 2, and the sliding block 2 is fixedly connected to the splint.

[0011] Preferably, the fixing device includes a fixing component, the fixing component includes a movable plate, sliding grooves 2 are provided inside the top of the inner wall of the fixing frame and the two sides of the upper surface of the base, the movable plate slides and cooperates at both ends between the two sliding grooves 2, and movable grooves are provided at both upper and lower ends of the movable plate; sliding grooves 4 are provided on both sides of the left and right walls of the fixing frame, the interior of the sliding groove 4 slides and cooperates with the fixing plate, and the fixed plate slides inside the movable groove.

[0012] Preferably, the fixing device also has a driving component installed inside the fixed frame, the driving component cooperates with the fixed plate and the movable plate, the driving component includes a driving motor 1, the output end of the driving motor 1 extends to the inside of the fixed frame and is equipped with a bevel gear 1, the internal rotation of the fixed frame is matched with a rotating rod, the surfaces in the middle and both ends of the rotating rod are equipped with bevel gears 2, the surfaces at both ends of the rotating rod are threadedly matched with sliding blocks 1, the interiors of the left and right sides of the fixed frame are rotatably matched with screw rods, the top of the screw rod is equipped with bevel gear 3, bevel gear 3 is meshed with bevel gear 2 at both ends of the rotating rod, the bevel gear 2 in the middle of the rotating rod is meshed with bevel gear 1, the surfaces of the upper and lower ends of the screw rod are threadedly matched with moving blocks, the sliding block 1 is fixedly connected to the moving plate, and the moving block is fixedly connected to the fixed plate.

[0013] Preferably, the threads on the surfaces of the rotating rod and the screw rod are bidirectional threads, and the screw rod threads on the left and right sides are arranged oppositely.

[0014] Preferably, the welding device comprises a welding machine and a cylinder installed on the top of the support frame.

[0015] Preferably, the welding machine comprises a welding head and a protective airflow component, a high temperature resistant rubber sleeve is installed on the outer side of the protective airflow component, and the high temperature resistant rubber sleeve is installed on the outer side of the top of the welding head.

[0016] Preferably, the protective airflow component comprises a plurality of air nozzles circumferentially distributed outside the welding head, a pressure equalizing tube connected to the air nozzles, and an air pump connected to the pressure equalizing tube.

[0017] A method for using a welding anti-deformation component for a building steel structure, the steps are as follows:

[0018] Step 1: Fix the steel structure

[0019] Place the steel structure to be welded inside the two fixed plates and the two movable plates;

[0020] When the driving motor is started, the output end of the driving motor rotates to drive the bevel gear to rotate, the bevel gear rotates to drive the bevel gear to rotate, the bevel gear rotates to drive the rotating rod to rotate, the rotating rod rotates to drive the sliding block to move relatively, and the sliding block moves to drive the moving plate to move;

[0021] At the same time, the rotation of the rotating rod drives the bevel gear 2 at both ends of the rotating rod to rotate, the rotation of the bevel gear 2 at both ends of the rotating rod drives the bevel gear 3 to rotate, the rotation of the bevel gear 3 drives the screw rod to rotate, the rotation of the screw rod drives the moving block to move relatively, and the movement of the moving block drives the fixed plate to move relatively;

[0022] When the fixed plate and the movable plate are in contact with the steel structure, the steel structure can be clamped;

[0023] Step 2: Adjust the steel structure at the welding point

[0024] The drive motor 3 is started, and the output end of the drive motor 3 rotates to drive the threaded rod to rotate, and the rotation of the threaded rod drives the threaded block to move in the same direction until the distance between the two clamping plates and the steel structure is within the clamping plate adjustment range;

[0025] Step 3: Fix the steel structure at the welding point

[0026] One of the drive motors 2 is started, and the output end of the drive motor 2 rotates to drive the transmission rod 1 to rotate, the rotation of the transmission rod 1 drives the bevel gear 4 to rotate, the rotation of the bevel gear 4 drives the bevel gear 5 to rotate, the rotation of the bevel gear 5 drives the transmission rod 2 to rotate, the rotation of the transmission rod 2 drives the sliding block 2 to move, and when the sliding block 2 moves to the clamping plate and contacts the steel structure, the welding part of the steel structure can be fixed;

[0027] Step 4: Steel structure welding

[0028] Before welding the steel structure, install a copper gasket at the bottom of the steel structure weld. The copper gasket and the bottom surface of the steel structure weld should fit tightly.

[0029] The welding head welds the steel structure. During welding, the air pump forms negative pressure inside the pressure equalizing tube, and the air nozzle forms a vortex to block the airflow to complete the welding operation. After welding is completed, all motors rotate in the opposite direction until the corresponding components are reset to the initial state.

[0030] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time:

[0031] The staff starts the fixing device to fix the steel structure to be welded, the staff starts the driving motor 2 to make the clamp move relatively, so that the welding point of the steel structure can be fixed, the staff starts the driving motor 3 to make the threaded rod rotate, and the two threaded blocks can move in the same direction, so that the height of the welding point of the steel structure can be adjusted. After the docking is completed, the deformation of the steel structure during welding can be reduced, and the welding effect can be improved.

[0032] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0034] Figure 1 It is a schematic diagram of the main structure of the anti-deformation device of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the fixing device of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the regulating device of the present invention;

[0037] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing frame of the present invention;

[0038] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixing column of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the welding machine of the present invention;

[0040] Figure 7 It is a bottom view of the airflow protection member of the present invention.

[0041] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0042] 1. Base; 2. Fixed frame; 3. Drive motor 1; 4. Fixed column; 5. Drive motor 2; 6. Slide slot 1; 7. Drive motor 3; 8. Support frame; 9. Welding device; 91 Welding head; 92. High temperature resistant rubber sleeve; 93. Protective airflow parts; 931. Air nozzle; 932. Pressure equalizing tube; 933. Air pump; 10. Moving plate; 11. Fixed plate; 12. Moving slot; 13. Slide slot 2; 14. Clamp; 15. Fixed block; 16. Slide slot 3; 17. Slide slot 4; 18. Threaded block; 19. Threaded rod; 20. Bevel gear 1; 21. Bevel gear 2; 22. Rotating rod; 23. Bevel gear 3; 24. Screw; 25. Moving block; 26. Slide block 1; 27. Transmission rod 1; 28. Bevel gear 4; 29. ​​Bevel gear 5; 30. Transmission rod 2; 31. Slide block 2.

[0043] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] The present invention will now be described in further detail with reference to the accompanying drawings.

[0045] See also Figure 1-5 As shown, in this embodiment, a building steel structure welding anti-deformation component is provided, including a base 1.

[0046] A fixing frame 2 is installed on both sides of the top of the base 1, and a fixing device is installed on the top side of the fixing frame 2. A supporting frame 8 is installed in the middle of the base 1, and a welding device 9 is installed on the inner top of the supporting frame 8. Fixing columns 4 are installed on both sides of the supporting frame 8, and an adjusting device is installed on the top side of the fixing column 4.

[0047] The adjusting device includes a driving motor 3 7, a sliding groove 1 6 is provided inside the fixed column 4, the sliding groove 6 is vertically arranged, the driving motor 3 7 is installed on the top of the fixed column 4, the output end of the driving motor 3 7 extends to the inside of the fixed column 4, the internal rotation of the fixed column 4 is matched with a threaded rod 19, the threaded rod 19 is connected to the output end of the driving motor 3 7, the internal sliding match of the sliding groove 6 has two threaded blocks 18, the threaded block 18 is threadedly matched with the threaded rod 19, the threaded block 18 passes through the sliding groove 16 and is provided with a driving motor 2 5 on one side of the fixed column 4, and a fixed block 15 is provided on the other side of the threaded block 18, a sliding groove 3 16 is provided inside the fixed block 15, a clamping plate 14 is slidably matched between the two opposite fixed blocks 15 through the sliding groove 3 16, a transmission assembly is installed inside the fixed block 15, and the transmission assembly cooperates with the clamping plate 14; the welding device 9 includes a welding machine and a cylinder installed at the top of the support frame 8.

[0048] The transmission assembly of this embodiment includes a transmission rod 27, which is rotatably engaged in the interior of the threaded block 18. The output end of the drive motor 25 is fixedly connected to the transmission rod 27. The transmission rod 27 extends to the outer surface of the fixed block 15 and is equipped with a bevel gear 4 28. The interior of the fixed block 15 is rotatably engaged with a transmission rod 2 30. The end of the transmission rod 2 30 close to the transmission rod 27 is equipped with a bevel gear 5 29. The bevel gear 5 29 is meshed with the bevel gear 4 28. The surface thread of the transmission rod 2 30 is engaged with a sliding block 2 31, and the sliding block 2 31 is fixedly connected to the clamping plate 14.

[0049] The staff starts a driving motor 25, the output end of the driving motor 25 rotates to drive the transmission rod 1 27 to rotate, the transmission rod 1 27 rotates to drive the bevel gear 4 28 to rotate, the bevel gear 4 28 rotates to drive the bevel gear 5 29 to rotate, the bevel gear 5 29 rotates to drive the transmission rod 2 30 to rotate, the transmission rod 2 30 rotates to drive the sliding block 2 31 to move, when the sliding block 2 31 moves to the clamping plate 14 and contacts the steel structure, the welding part of the steel structure can be fixed.

[0050] The fixing device of this embodiment includes a fixing component and a driving component, and the fixing component includes a moving plate 10 .

[0051] The top of the inner wall of the fixed frame 2 and the inside of both sides of the upper surface of the base 1 are both provided with sliding grooves 13, and the moving plate 10 slides at both ends between the two sliding grooves 13, and the moving plate 10 has moving grooves 12 at both ends.

[0052] Both sides of the left and right walls of the fixed frame 2 are provided with sliding grooves 4 17, and the interior of the sliding grooves 4 17 is slidably matched with the fixed plate 11, and the fixed plate 11 slides inside the movable groove 12.

[0053] The driving assembly is installed inside the fixed frame 2 , and the driving assembly cooperates with the fixed plate 11 and the movable plate 10 .

[0054] The driving assembly of this embodiment includes a driving motor 3, the output end of the driving motor 3 extends to the interior of the fixed frame 2 and is equipped with a bevel gear 20, the interior of the fixed frame 2 is rotatably matched with a rotating rod 22, the surfaces of the middle and both ends of the rotating rod 22 are equipped with bevel gears 21, the surfaces of both ends of the rotating rod 22 are threadedly matched with sliding blocks 26, the interiors of the left and right sides of the fixed frame 2 are rotatably matched with screw rods 24, the top of the screw rod 24 is equipped with bevel gears 3 23, the bevel gears 3 23 are meshed with the bevel gears 21 at both ends of the rotating rod 22, the bevel gears 21 in the middle of the rotating rod 22 are meshed with the bevel gear 1 20, the surfaces of the upper and lower ends of the screw rod 24 are threadedly matched with moving blocks 25, the sliding block 1 26 is fixedly connected to the moving plate 10, and the moving block 25 is fixedly connected to the fixed plate 11; the threads on the surfaces of the rotating rod 22 and the screw rod 24 are bidirectional threads, and the threads of the screw rod 24 on the left and right sides are oppositely arranged.

[0055] The staff starts the driving assembly, and the driving assembly drives the rotating rod 22 to rotate. The rotation of the rotating rod 22 drives the sliding block 26 to move relatively. The movement of the sliding block 26 drives the moving plate 10 to move. At the same time, the driving assembly drives the moving block 25 to move relatively. The movement of the moving block 25 drives the fixed plate 11 to move relatively. When the fixed plate 11 and the moving plate 10 are in contact with the steel structure, the steel structure can be fixed.

[0056] The staff starts the driving motor 3, and the output end of the driving motor 3 rotates to drive the bevel gear 20 to rotate, the rotation of the bevel gear 20 drives the bevel gear 21 to rotate, the rotation of the bevel gear 21 drives the rotating rod 22 to rotate, the rotation of the rotating rod 22 drives the sliding block 26 to move relatively, the movement of the sliding block 26 drives the moving plate 10 to move, and at the same time, the rotation of the rotating rod 22 drives the bevel gears 21 at both ends of the rotating rod 22 to rotate, the rotation of the bevel gears 21 at both ends of the rotating rod 22 drives the bevel gear 3 23 to rotate, the rotation of the bevel gear 3 23 drives the screw rod 24 to rotate, and the rotation of the screw rod 24 drives the moving block 25 to move relatively.

[0057] In the anti-deformation assembly, the welding machine includes a welding head 91 and a protective airflow member 93 , a high temperature resistant rubber sleeve 92 is installed on the outer side of the protective airflow member 93 , and the high temperature resistant rubber sleeve 92 is installed on the top outer side of the welding head 91 .

[0058] The airflow protection member 93 includes a plurality of air nozzles 931 circumferentially distributed outside the welding head 91 , a pressure equalizing tube 932 connected to the air nozzles 931 , and an air pump 933 connected to the pressure equalizing tube 932 .

[0059] During implementation, the air pump 933 is used to form a negative pressure in the pressure equalizing tube 932, and then a vortex airflow hood can be formed through the air nozzle 931. The vortex airflow hood can block the smoke from overflowing during welding. The airflow hood can form a certain negative pressure inside, which is beneficial to the exhaust and slag removal of the molten pool, and can block the rapid outward diffusion of heat, thereby achieving a certain thermal insulation effect.

[0060] A method for using a welding anti-deformation component for a building steel structure, the steps are as follows:

[0061] Step 1: Fix the steel structure

[0062] Place the steel structure to be welded into the two fixed plates 11 and the two movable plates 10;

[0063] The driving motor 3 is started, the output end of the driving motor 3 rotates to drive the bevel gear 20 to rotate, the bevel gear 20 rotates to drive the bevel gear 21 to rotate, the bevel gear 21 rotates to drive the rotating rod 22 to rotate, the rotating rod 22 rotates to drive the sliding block 26 to move relatively, and the movement of the sliding block 26 drives the moving plate 10 to move;

[0064] At the same time, the rotation of the rotating rod 22 drives the bevel gear 21 at both ends of the rotating rod 22 to rotate, the rotation of the bevel gear 21 at both ends of the rotating rod 22 drives the bevel gear 3 23 to rotate, the rotation of the bevel gear 3 23 drives the screw rod 24 to rotate, the rotation of the screw rod 24 drives the moving block 25 to move relatively, and the movement of the moving block 25 drives the fixed plate 11 to move relatively;

[0065] When the fixed plate 11 and the movable plate 10 are in contact with the steel structure, the steel structure can be clamped;

[0066] Step 2: Adjust the steel structure at the welding point

[0067] The drive motor 3 7 is started, and the output end of the drive motor 3 7 rotates to drive the threaded rod 19 to rotate, and the threaded rod 19 rotates to drive the threaded block 18 to move in the same direction until the distance between the two clamping plates 14 and the steel structure is within the adjustment range of the clamping plates 14;

[0068] Step 3: Fix the steel structure at the welding point

[0069] One of the drive motors 2 5 is started, and the output end of the drive motor 2 5 rotates to drive the transmission rod 1 27 to rotate, the transmission rod 1 27 rotates to drive the bevel gear 4 28 to rotate, the bevel gear 4 28 rotates to drive the bevel gear 5 29 to rotate, the bevel gear 5 29 rotates to drive the transmission rod 2 30 to rotate, the transmission rod 2 30 rotates to drive the sliding block 2 31 to move, and when the sliding block 2 31 moves to the clamping plate 14 and contacts the steel structure, the welding part of the steel structure can be fixed;

[0070] Step 4: Steel structure welding

[0071] Before welding the steel structure, install a copper gasket at the bottom of the steel structure weld to prevent the bottom of the molten pool from being open, resulting in poor exhaust and slag removal effects and inhomogeneous molten pool. The copper gasket fits tightly to the bottom of the steel structure weld.

[0072] The welding head 91 welds the steel structure. During welding, the air pump 933 forms a negative pressure inside the pressure equalizing tube 932, and the air nozzle 931 forms a vortex to block the airflow to complete the welding operation. After the welding is completed, all motors rotate in the opposite direction until the corresponding components are reset to the initial state.

[0073] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. A welding anti-deformation component for building steel structures, characterized in that: comprising a base (1); A fixing frame (2) is installed on both sides of the top of the base (1), a fixing device is installed on the top side of the fixing frame (2), a supporting frame (8) is installed in the middle of the base (1), a welding device (9) is installed on the inner top of the supporting frame (8), fixing columns (4) are installed on both sides of the supporting frame (8), and an adjusting device is installed on the top side of the fixing column (4); The adjusting device comprises a driving motor 3 (7), a sliding groove 1 (6) is provided inside the fixed column (4), the sliding groove 1 (6) is arranged vertically, the driving motor 3 (7) is installed on the top of the fixed column (4), the output end of the driving motor 3 (7) extends to the inside of the fixed column (4), a threaded rod (19) is rotatably matched inside the fixed column (4), the threaded rod (19) is connected to the output end of the driving motor 3 (7), the sliding groove 1 (6) is slidably matched with two threaded blocks (18), the threaded blocks ( 18) is threadedly matched with the threaded rod (19), the threaded block (18) passes through the sliding groove (6) and is equipped with a driving motor (5) on one side of the fixed column (4), and the other side of the threaded block (18) is equipped with a fixed block (15), and a sliding groove (16) is opened inside the fixed block (15), and a clamping plate (14) is slidably matched between the two opposite fixed blocks (15) through the sliding groove (16), and a transmission component is installed inside the fixed block (15), and the transmission component is matched with the clamping plate (14).

2. The anti-deformation assembly for welding of building steel structures according to claim 1, characterized in that: The transmission assembly comprises a transmission rod 1 (27), the transmission rod 1 (27) is rotatably engaged in the interior of the threaded block (18), the output end of the driving motor 2 (5) is fixedly connected to the transmission rod 1 (27), the transmission rod 1 (27) extends to the outer surface of the fixed block (15) and is provided with a bevel gear 4 (28), the interior of the fixed block (15) is rotatably engaged with the transmission rod 2 (30), the transmission rod 2 (30) is provided with a bevel gear 5 (29) at one end close to the transmission rod 1 (27), the bevel gear 5 (29) is meshed with the bevel gear 4 (28), the surface of the transmission rod 2 (30) is threadedly engaged with the sliding block 2 (31), and the sliding block 2 (31) is fixedly connected to the clamping plate (14).

3. The anti-deformation assembly for welding of building steel structures according to claim 2, characterized in that: The fixing device comprises a fixing assembly, which comprises a moving plate (10); the top of the inner wall of the fixing frame (2) and the inside of both sides of the upper surface of the base (1) are both provided with sliding grooves (13); the moving plate (10) is slidably matched at both ends between the two sliding grooves (13); the moving plate (10) is provided with moving grooves (12) at both upper and lower ends; sliding grooves (17) are both provided on both sides of the left and right walls of the fixing frame (2); the inside of the sliding grooves (17) is slidably matched with the fixing plate (11), and the fixing plate (11) slides inside the moving grooves (12).

4. The anti-deformation assembly for welding of building steel structures according to claim 3, characterized in that: The fixing device further comprises a driving assembly installed inside the fixing frame (2), the driving assembly cooperates with the fixing plate (11) and the moving plate (10), the driving assembly comprises a driving motor (3), the output end of the driving motor (3) extends to the inside of the fixing frame (2) and is equipped with a bevel gear (20), the inside of the fixing frame (2) is rotatably matched with a rotating rod (22), the surfaces of the middle part and both ends of the rotating rod (22) are both equipped with bevel gears (21), and the surfaces of both ends of the rotating rod (22) are both threadedly matched with sliding blocks (26), The inside of the left and right sides of the fixed frame (2) are both rotatably matched with screw rods (24), the top of the screw rod (24) is equipped with a bevel gear three (23), the bevel gear three (23) is meshed with bevel gear two (21) at both ends of the rotating rod (22), the bevel gear two (21) in the middle of the rotating rod (22) is meshed with bevel gear one (20), the surfaces of the upper and lower ends of the screw rod (24) are both threadedly matched with moving blocks (25), the sliding block one (26) is fixedly connected to the moving plate (10), and the moving block (25) is fixedly connected to the fixed plate (11).

5. The anti-deformation assembly for welding of building steel structures according to claim 4, characterized in that: The threads on the surfaces of the rotating rod (22) and the screw rod (24) are bidirectional threads, and the threads of the screw rod (24) on the left and right sides are arranged in opposite directions.

6. The anti-deformation assembly for welding of building steel structures according to claim 5, characterized in that: The welding device (9) comprises a welding machine and a cylinder installed on the top of the support frame (8).

7. The anti-deformation assembly for welding of building steel structures according to claim 6, characterized in that: The welding machine comprises a welding head (91) and a protective airflow component (93), a high temperature resistant rubber sleeve (92) is installed on the outer side of the protective airflow component (93), and the high temperature resistant rubber sleeve (92) is installed on the outer side of the top of the welding head (91).

8. The anti-deformation assembly for welding of building steel structures according to claim 7, characterized in that: The protective airflow component (93) comprises a plurality of air nozzles (931) distributed along the circumferential direction on the outside of the welding head (91), a pressure equalizing tube (932) connected to the air nozzles (931), and an air pump (933) connected to the pressure equalizing tube (932).

9. The method for using the building steel structure welding anti-deformation assembly according to claim 8, characterized in that: Here are the steps: Step 1: Fix the steel structure Placing the steel structure to be welded inside the two fixed plates (11) and the two movable plates (10); The driving motor 1 (3) is started, the output end of the driving motor 1 (3) rotates to drive the bevel gear 1 (20) to rotate, the bevel gear 1 (20) rotates to drive the bevel gear 2 (21) to rotate, the bevel gear 2 (21) rotates to drive the rotating rod (22), the rotating rod (22) rotates to drive the sliding block 1 (26) to move relatively, the sliding block 1 (26) moves to drive the moving plate (10) to move; At the same time, the rotation of the rotating rod (22) drives the bevel gears 2 (21) at both ends of the rotating rod (22) to rotate, the rotation of the bevel gears 2 (21) at both ends of the rotating rod (22) drives the bevel gears 3 (23) to rotate, the rotation of the bevel gears 3 (23) drives the screw rod (24) to rotate, the rotation of the screw rod (24) drives the moving block (25) to move relatively, and the movement of the moving block (25) drives the fixed plate (11) to move relatively; When the fixed plate (11) and the movable plate (10) are in contact with the steel structure, the steel structure can be clamped; Step 2: Adjust the steel structure at the welding point The drive motor 3 (7) is started, the output end of the drive motor 3 (7) rotates to drive the threaded rod (19) to rotate, and the threaded rod (19) rotates to drive the threaded block (18) to move in the same direction until the distance between the two clamping plates (14) and the steel structure is within the adjustment range of the clamping plates (14); Step 3: Fix the steel structure at the welding point One of the drive motors 2 (5) is started, the output end of the drive motor 2 (5) rotates to drive the transmission rod 1 (27), the transmission rod 1 (27) rotates to drive the bevel gear 4 (28), the bevel gear 4 (28) rotates to drive the bevel gear 5 (29), the bevel gear 5 (29) rotates to drive the transmission rod 2 (30), the transmission rod 2 (30) rotates to drive the sliding block 2 (31) to move, when the sliding block 2 (31) moves to the clamping plate (14) and contacts the steel structure, the welding part of the steel structure can be fixed; Step 4: Steel structure welding Before welding the steel structure, install a copper gasket at the bottom of the steel structure weld. The copper gasket and the bottom surface of the steel structure weld should fit tightly. The welding head (91) welds the steel structure. During welding, the air pump (933) forms a negative pressure inside the pressure equalizing tube (932). The air nozzle (931) forms a vortex to block the airflow to complete the welding operation. After the welding is completed, all motors rotate in the opposite direction until the corresponding components are reset to the initial state.

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