A steel structure deviation prevention type welding system and method for workshop construction

Abstract

The application relates to the field of welding, and provides a steel structure deviation-preventing welding system and method for workshop construction, which comprises a base, a cylinder one is fixedly connected to the base, two connecting boxes are arranged on the base, one of the connecting boxes is slidingly connected to the top wall of the base and is fixedly connected with the cylinder one, the other connecting box is fixedly connected to the top wall of the base, a workpiece shape detection mechanism, an adjusting mechanism and a clamping mechanism are connected to the connecting boxes, the workpiece shape detection mechanism is used for automatically detecting the shape of a workpiece, and the adjusting mechanism is used for linkage with the clamping mechanism to automatically adapt the shape of the workpiece. The application realizes automatic alignment of the workpiece without manual participation, ensures the accuracy of a welding seam position, and relies on the driving of a cylinder two and the cylinder one to accurately align and abut two workpieces, prevents deviation of the two workpieces during butt joint, and improves the welding efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a deviation-prevention welding system and welding method for steel structures used in factory construction. Background Technology

[0002] Chinese utility model patent CN210731531U discloses a steel pipe welding fixture clamping platform, which is suitable for production and application in the field of steel pipe welding clamping technology. The steel pipe welding fixture clamping platform includes a main platform, which includes a secondary platform. The top of the inner wall of the main platform is provided with a slider integrated therewith, and a flap is hinged to the right side of the inner wall of the main platform. A sliding opening is opened on the rear side of the top of the secondary platform, and the slider is locked in the sliding opening. A base plate is provided on the front side of the inner wall of the platform. The beneficial effects of this utility model are: by setting up a slider, flap, and base plate, the use of bolts is effectively reduced, which facilitates temporary installation by users. At the same time, by setting up an L-shaped rod and a second nut, the position of the steel pipe can be quickly adjusted, which improves the convenience and ease of use of this steel pipe welding fixture clamping platform and solves the problems of existing steel pipe welding fixture clamping platforms being inconvenient for temporary installation and debugging.

[0003] However, the aforementioned patent requires precise manual alignment of the two steel pipes, followed by tedious manual twisting of the locking bolts and nuts to clamp and weld the steel pipes, which reduces welding efficiency. Summary of the Invention

[0004] To address the technical problems raised in the background section, this invention aims to provide a deviation-resistant welding system and method for steel structures used in factory construction. This invention achieves this through the following technical solution: A steel structure anti-deviation welding system for factory construction includes a base, a cylinder fixedly connected to the base, and two connecting boxes provided on the base. One connecting box is slidably connected to the top wall of the base, and the cylinder is fixedly connected to the connecting box. The other connecting box is fixedly connected to the top wall of the base. A workpiece shape detection mechanism, an adjustment mechanism, and a clamping mechanism are connected to the connecting box.

[0005] Preferably, the connecting box has a cavity, which is connected to the top wall of the connecting box through two displacement channels; The workpiece shape detection mechanism includes two pressure-bearing mechanisms. Each pressure-bearing mechanism includes an inclined block, which is slidably connected to the connecting box. The inclined block extends above the connecting box and into the box cavity. The inclined block is connected to the inner wall of the box cavity by a spring. A permanent magnet is fixedly attached to the inclined block. The adjustment mechanism includes a hollow plate, which is slidably connected to the inner wall of the box cavity. The hollow plate is connected to the inner wall of the box cavity through a spring. Two permanent magnets and two toothed plates are fixedly attached to the hollow plate. The clamping mechanism includes two clamping rods, which are slidably connected to the inner walls of two displacement channels. The clamping rods extend above the connecting box and into the box cavity. A second cylinder is fixedly connected to the clamping rod and to the inner wall of the box cavity. A rotating shaft is rotatably connected inside the clamping rod, and a clamping block is fixedly connected to the rotating shaft. One side wall of the clamping block is flat, and the other side wall is curved. A first transmission wheel is fixedly connected to the rotating shaft, and a gear is rotatably connected inside the clamping rod. A second transmission wheel is fixedly connected to the gear and connected to the first transmission wheel via a transmission chain. The gear extends below the clamping rod.

[0006] Preferably, one of the connecting boxes is connected to a striking mechanism, and the other connecting box is connected to a triggering mechanism.

[0007] Preferably, the striking mechanism includes a striking cylinder, which is fixedly connected to one of the connecting boxes. An iron-containing pendulum is rotatably connected to the inner wall of the striking cylinder via a limiting pivot. An extension bar is rotatably connected to the iron-containing pendulum. A square frame, a striking element, and a permanent magnet are slidably connected to the inner wall of the striking cylinder. An elastic buffer layer is fixedly connected to the square frame. The striking element and the elastic buffer layer abut against each other. The extension bar is slidably connected to the inner wall of the square frame. The triggering mechanism includes a trigger rod, which is fixed to another connecting box, and a permanent magnet is fixed to the trigger rod.

[0008] Preferably, a limiting block is fixed to the inner wall of the box cavity.

[0009] Preferably, a slide rail is fixedly connected to the inner wall of the striking cylinder, and a limiting piece is provided on the slide rail, and the permanent magnet is slidably connected to the slide rail.

[0010] Preferably, the top wall of the striking element is covered with cotton cloth.

[0011] Preferably, permanent magnet one, permanent magnet two, permanent magnet three and permanent magnet four all contain neodymium.

[0012] Preferably, the base and the controller are connected.

[0013] A method for anti-deviation welding of steel structures for factory construction involves using an anti-deviation welding system for steel structures for factory construction to clamp and fix two workpieces, and then using a welding machine to weld the two workpieces together.

[0014] The present invention has the following beneficial effects: It enables automatic workpiece alignment without human intervention, ensuring accurate weld seam positioning. Driven by cylinders one and two, it precisely aligns and abuts two workpieces, preventing deviations during workpiece docking and improving welding efficiency and quality. Attached Figure Description

[0015] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of a steel structure anti-deviation welding system for factory construction according to the present invention; Figure 2 This is a front view of a steel structure anti-deviation welding system for factory construction according to the present invention; Figure 3 This is the present invention. Figure 2 Enlarged view of the percussion tube; Figure 4 This is the present invention. Figure 3 Left view of the connecting box on the left side of the middle.

[0017] Reference numerals: 1. Base; 2. Connecting box; 3. Clamping rod; 4. Clamping block; 5. Cylinder 1; 6. Box cavity; 7. Displacement channel; 8. Limiting block; 9. Rotating shaft; 10. Transmission wheel 1; 11. Transmission chain; 12. Transmission wheel 2; 13. Gear; 14. Cylinder 2; 15. Inclined block; 16. Spring 1; 17. Permanent magnet 1; 18. Hollow plate; 19. Spring 2; 20. Permanent magnet 2; 21. Gear plate; 22. Striking cylinder; 23. Trigger rod; 24. Permanent magnet 3; 25. Iron-containing pendulum component; 26. Extension strip; 27. Square frame; 28. Elastic buffer layer; 29. ​​Striking component; 30. Permanent magnet 4; 31. Workpiece. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] like Figures 1-4 As shown, a steel structure anti-deviation welding system for factory construction includes a base 1, a cylinder 5 fixedly connected to the base 1, and two connecting boxes 2 provided on the base 1. One connecting box 2 is slidably connected to the top wall of the base 1, and the cylinder 5 is fixedly connected to the connecting box 2. The other connecting box 2 is fixedly connected to the top wall of the base 1. A workpiece shape detection mechanism, an adjustment mechanism, and a clamping mechanism are connected to the connecting box 2.

[0022] The workpiece shape detection mechanism is used to automatically detect the shape of the workpiece 31, and the adjustment mechanism is used to link with the clamping mechanism so that the clamping mechanism automatically adapts to the shape of the workpiece 31.

[0023] In a preferred embodiment of the present invention, the connecting box 2 is provided with a cavity 6, and the cavity 6 is connected to the top wall of the connecting box 2 through two displacement channels 7; The workpiece shape detection mechanism includes two pressure-bearing mechanisms. Each pressure-bearing mechanism includes an inclined block 15, which is slidably connected to the connecting box 2. The inclined block 15 extends above the connecting box 2 and into the box cavity 6. The inclined block 15 is connected to the inner wall of the box cavity 6 by a spring 16. A permanent magnet 17 is fixedly attached to the inclined block 15. The shape of workpiece 31 determines that workpiece 31 can push the inclined surfaces of several inclined blocks 15, causing the inclined blocks 15 to move down, thereby realizing automatic detection of the shape of workpiece 31.

[0024] The adjustment mechanism includes a hollow plate 18, which is slidably connected to the inner wall of the box cavity 6. The hollow plate 18 is connected to the inner wall of the box cavity 6 by a spring 19. Two permanent magnets 20 and two toothed plates 21 are fixed on the hollow plate 18. The hollow core plate 18 can reduce its mass, making it easier to move upwards and saving production materials.

[0025] The clamping mechanism includes two clamping rods 3, which are slidably connected to the inner walls of two displacement channels 7. The clamping rods 3 extend above the connecting box 2 and into the box cavity 6. A second cylinder 14 is fixedly connected to the clamping rod 3 and is fixedly connected to the inner wall of the box cavity 6. A rotating shaft 9 is rotatably connected inside the clamping rod 3, and a clamping block 4 is fixedly connected to the rotating shaft 9. One side wall of the clamping block 4 is flat, and the other side wall of the clamping block 4 is curved. A first transmission wheel 10 is fixedly connected to the rotating shaft 9. A gear 13 is rotatably connected inside the clamping rod 3, and a second transmission wheel 12 is fixedly connected to the gear 13. The second transmission wheel 12 is connected to the first transmission wheel 10 through a transmission chain 11. The gear 13 extends below the clamping rod 3.

[0026] The flat sidewall of clamping block 4 can adapt to the workpiece 31 with a cuboid shape, and the curved sidewall of clamping block 4 can adapt to the workpiece 31 with a cylindrical shape, thereby increasing the clamping area and thus improving clamping stability and quality.

[0027] In a preferred embodiment of the present invention, one of the connecting boxes 2 is connected to a striking mechanism, and the other connecting box 2 is connected to a triggering mechanism.

[0028] In a preferred embodiment of the present invention, the striking mechanism includes a striking cylinder 22, which is fixedly connected to one of the connecting boxes 2. The inner wall of the striking cylinder 22 is rotatably connected to an iron-containing pendulum component 25 via a limiting pivot. An extension strip 26 is rotatably connected to the iron-containing pendulum component 25. A square frame 27, a striking component 29, and a permanent magnet 30 are slidably connected to the inner wall of the striking cylinder 22. An elastic buffer layer 28 is fixedly connected to the square frame 27. The striking component 29 and the elastic buffer layer 28 abut against each other. The extension strip 26 is slidably connected to the inner wall of the square frame 27. The triggering mechanism includes a trigger rod 23, which is fixedly connected to another connecting box 2, and a permanent magnet 24 is fixedly connected to the trigger rod 23.

[0029] The iron-containing pendulum component 25 is provided with a hammer head, so that the mass of the pendulum component 25 is mainly concentrated in the hammer head, so that the iron-containing pendulum component 25 can swing back and forth around the limiting pivot, driving the elastic buffer layer 28 to move up and down back and forth.

[0030] In a preferred embodiment of the present invention, a limiting block 8 is fixedly connected to the inner wall of the cavity 6. The limiting block 8 is used to limit the hollow plate 18 so that the toothed plate 21 maintains its current height.

[0031] In a preferred embodiment of the present invention, a slide rail is fixedly connected to the inner wall of the striking cylinder 22, and a limiting piece is provided on the slide rail. The permanent magnet 30 is slidably connected to the slide rail, the slide rail provides sliding guidance for the permanent magnet 30, and the limiting piece is used to limit the sliding of the permanent magnet 30.

[0032] In a preferred embodiment of the present invention, the top wall of the striking member 29 is wrapped with cotton cloth, which can reduce the degree of wear on the workpiece 31.

[0033] In a preferred embodiment of the present invention, the permanent magnet 17, permanent magnet 20, permanent magnet 34 and permanent magnet 4 30 all contain neodymium. Neodymium enables the magnets to maintain stable magnetic properties and provides reliable adsorption and release.

[0034] In a preferred embodiment of the present invention, the base 1 is connected to the controller, which is used to control the working state between the various electrical components. The controller may be a programmable logic controller.

[0035] A method for anti-deviation welding of steel structures for factory construction involves using an anti-deviation welding system for steel structures for factory construction to clamp and fix two workpieces 31, and then using a welding machine to weld the two workpieces 31.

[0036] Implementation process: Workpiece 31 is a steel structure component used for factory construction. Workpiece 31 has a cylindrical or cuboid shape.

[0037] Push one of the workpieces 31 from the left side of the left connecting box 2 between the two clamping blocks 4. The central axis of the workpiece 31 does not need to be precisely aligned with the midpoint between the two clamping blocks 4. The right end of the workpiece 31 extends to the right side of the connecting box 2. If workpiece 31 is cylindrical, then one workpiece 31 will not simultaneously press down on two inclined blocks 15. That is, at most one inclined block 15 will be pressed down by one workpiece 31. This inclined block 15 moves down against the elastic force of spring 16, and permanent magnet 17 moves down together. The magnetic attraction of permanent magnet 17 attracts permanent magnet 20. Hollow plate 18 moves up against the elastic force of spring 29, but the upward movement of hollow plate 18 is insufficient to mesh with gear 13. Therefore, no matter how gear 13 moves subsequently... Neither of them will mesh with the toothed plate 21 and rotate. The rotating shaft 9 and the clamping block 4 will not rotate. The piston rods of the two cylinders 14 on the control connecting box 2 will extend, so that the two clamping rods 3 will move closer to each other along the displacement channel 7, so that the curved surfaces on the two clamping blocks 4 will abut against the outer wall of the cylindrical workpiece 31, thereby clamping the cylindrical workpiece 31 with the two clamping blocks 4. The curved surfaces on the clamping blocks 4 and the outer wall of the cylindrical workpiece 31 are well matched and can fit well for clamping, thus improving the clamping quality.

[0038] If workpiece 31 is cuboid, then workpiece 31 will simultaneously press down on two inclined blocks 15, and two permanent magnets 17 will move down together. The magnetic attraction of the two permanent magnets 17 will attract the two permanent magnets 20 respectively. The hollow plate 18 will move upward against the elastic force of the spring 19. The upward movement of the hollow plate 18 is sufficient to mesh with the gear 13. The hollow plate 18 and the limiting block 8 will abut against each other and generate pressure, stabilizing the hollow plate 18 at the current height. The piston rods of the two cylinders 14 on the control box 2 will extend, thereby causing the two... The clamping rods 3 approach each other along the displacement channel 7. During this process, the gear 13 meshes with the toothed plate 21 and rotates. After the gear 13 rotates 180 degrees, it disengages from the toothed plate 21, thereby causing the clamping blocks 4 to rotate 180 degrees. This causes the planes on the two clamping blocks 4 to abut against the outer wall of the cubic workpiece 31, thus clamping the cubic workpiece 31 with the two clamping blocks 4. The planes on the clamping blocks 4 and the outer wall of the cubic workpiece 31 are well-fitted and can be clamped, improving the clamping quality.

[0039] Push another workpiece 31 from the right side of the right connecting box 2 between the two clamping blocks 4. The central axis of the workpiece 31 does not need to be precisely aligned with the midpoint between the two clamping blocks 4. The left end of the workpiece 31 extends to the left side of the connecting box 2. The clamping principle of the right connecting box 2 for the other workpiece 31 is the same as described above. Both can automatically adapt to workpieces 31 with cylindrical or cubic shapes. This will not be described again here.

[0040] Based on the above principle, there is no need for manual alignment of the two workpieces 31. The clamping block 4 automatically centers and clamps the workpieces 31, thus automatically aligning the two workpieces 31.

[0041] By extending the piston rod on the control cylinder 5, the right connecting box 2 and the striking cylinder 22 are moved to the left, thereby moving the right workpiece 31 to the left until it is in contact with the right workpiece 31, so that the two workpieces 31 can be welded using a welding machine.

[0042] Initially, the iron-containing pendulum component 25 is in a vertical state with the hammer head facing downwards. The bottom wall of the striking component 29 and the top wall of the elastic buffer layer 28 are in contact. The top wall of the striking component 29 is located inside the striking cylinder 22, and the permanent magnet 30 is located at the lower limit position.

[0043] When the striking cylinder 22 moves to the left, the right end of the trigger rod 23 and the permanent magnet 3 24 will be inserted into the striking cylinder 22. When the permanent magnet 4 30 passes directly below the permanent magnet 3 24, the permanent magnet 4 30 will be attracted and moved upward. After the permanent magnet 4 30 moves to the left and leaves directly below the permanent magnet 3 24, the permanent magnet 4 30 falls down and resets against the limiting plate. The permanent magnet 3 24 pushes the iron-containing pendulum component 25 to rotate clockwise. When the hammer head of the iron-containing pendulum component 25 rotates to below the permanent magnet 4 30, the permanent magnet 4 30 magnetically attracts the hammer head of the iron-containing pendulum component 25, keeping the iron-containing pendulum component 25 at the current angle. At this time, the permanent magnet 3 24 disengages from the iron-containing pendulum component 25, and the trigger rod 23 continues to move to the right until the two workpieces 31 abut against each other.

[0044] After welding is completed, the piston rods of the two cylinders 14 on the left shorten, and the clamping block 4 releases its grip on the workpiece 31. If the workpiece 31 is cylindrical, the clamping block 4 will not rotate. If the workpiece 31 is cuboid, the gear 13 will re-engage with the gear 21, causing the clamping block 4 to rotate 180 degrees to reset. The piston rod of the cylinder 5 shortens, and the striking cylinder 22 moves to the right to reset. During this process, the permanent magnet 30 is attracted and moved upwards when it passes directly below the permanent magnet 24. The iron-containing pendulum 25 cannot rotate with the upward movement of the permanent magnet 30 due to the limitation of the limiting shaft. The permanent magnet 30 releases its magnetic attraction to the hammer head of the iron-containing pendulum 25. Under its own gravity, the iron-containing pendulum 25 swings back and forth around the limiting shaft. At this time, the permanent magnet 24 has moved away from the iron-containing pendulum 25 and will not... The movement of the iron-containing pendulum component 25 is disturbed. The extension strip 26 slides back and forth in the frame 27, causing the frame 27 and the elastic buffer layer 28 to move up and down. The elastic buffer layer 28 will continuously push the striking component 29 upward. Under the action of inertia, the striking component 29 moves upward and separates from the elastic buffer layer 28. The top wall of the striking component 29 strikes the workpiece 31. After the striking component 29 falls, it is pushed upward by the elastic buffer layer 28, thus realizing that the striking component 29 strikes the workpiece 31 multiple times.

[0045] Because local heating and cooling during the welding process of workpiece 31 will generate tensile stress in the weld and heat-affected zone, repeated hammering will cause plastic deformation of the surface layer, converting tensile stress into compressive stress, thereby releasing residual stress and reducing the risk of structural deformation and cracking.

[0046] After the piston rod of cylinder 5 is shortened to a certain extent, the piston rods of the two cylinders 14 on the right are shortened, the clamping block 4 releases its clamping of the workpiece 31, and the two welded workpieces 31 can be taken out.

[0047] The beneficial effects of this invention are as follows: The system enables automatic alignment of workpieces 31 without human intervention, ensuring accurate weld seam positioning. Driven by cylinders 14 and 5, the two workpieces 31 are precisely aligned and abutted, preventing deviations during the docking of the two workpieces 31 and improving welding efficiency and quality. The system automatically identifies the shape of the workpiece 31 and adaptively clamps it, improving centering accuracy and efficiency. Through the workpiece 31 shape detection and adjustment mechanism composed of inclined block 15, spring 16, permanent magnet 17, hollow plate 18, spring 19, permanent magnet 20 and toothed plate 21, the system can automatically adjust the clamping mode according to the shape of the workpiece 31 (cylindrical or cuboid shape) to achieve automatic centering. There is no need for manual calibration of the workpiece 31 axis position, which greatly improves welding efficiency and reduces human error. The automatic matching and clamping of cylindrical and cuboid workpieces 31 is achieved, improving clamping stability. The clamping mechanism, composed of clamping rod 3, cylinder 2 14, rotating shaft 9, clamping block 4, transmission wheel 10, gear 13, transmission wheel 2 12 and transmission chain 11, can automatically switch the clamping block 4 to the curved or flat side under the drive of cylinder 2 14, so as to achieve precise fitting with the cylindrical or square workpiece 31, improve clamping quality, and reduce the probability of workpiece 31 shifting due to improper clamping. The hammering mechanism, consisting of a hammering cylinder 22, an iron-containing pendulum 25, an extension strip 26, a square frame 27, an elastic buffer layer 28, a hammering component 29, and a permanent magnet 30, can automatically hammer the surface of the workpiece 31 multiple times after welding by driving the hammering component 29. This converts the tensile stress generated by heat into compressive stress, significantly reducing the risk of deformation and cracking of the component after welding and improving welding reliability. The system achieves triggering and striking linkage control, ensuring precise timing of striking actions. The triggering mechanism, consisting of trigger rod 23 and permanent magnet 24, can trigger the striking mechanism when the connecting box 2 moves to a preset position, causing permanent magnet 30 to generate an adsorption path. This enables controlled rotation of the iron-containing pendulum 25 and striking action of the striking component 29, ensuring that striking is only performed after welding, which is safe and reliable. It also prevents striking before welding from causing microcracks and local embrittlement in the workpiece 31.

[0048] The automatic reset function of clamping block 4 is realized to improve the efficiency of repetitive operations. Through the meshing structure of limit block 8, toothed plate 21, and gear 13, when the cuboid workpiece 31 is released after welding, gear 13 will re-mesh toothed plate 21, so that clamping block 4 will automatically rotate 180 degrees back to the initial angle for subsequent reuse.

[0049] The components, modules, mechanisms, and devices in this invention that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A steel structure anti-deviation welding system for factory construction, characterized in that, Includes a base (1), on which a cylinder (5) is fixedly connected, and on which two connecting boxes (2) are provided, one of which is slidably connected to the top wall of the base (1), and the cylinder (5) is fixedly connected to the connecting box (2), and the other connecting box (2) is fixedly connected to the top wall of the base (1), and the connecting box (2) is connected to a cylindrical and cubic workpiece shape detection mechanism, an adjustment mechanism and a clamping mechanism; The connecting box (2) has a cavity (6) which is connected to the top wall of the connecting box (2) through two displacement channels (7); The cylindrical and cubic workpiece shape detection mechanism includes two pressure-bearing mechanisms. The pressure-bearing mechanism includes an inclined block (15), which is slidably connected to the connecting box (2). The inclined block (15) extends above the connecting box (2) and extends into the box cavity (6). The inclined block (15) is connected to the inner wall of the box cavity (6) through a spring (16). A permanent magnet (17) is fixed on the inclined block (15). The adjustment mechanism includes a hollow plate (18), which is slidably connected to the inner wall of the box cavity (6). The hollow plate (18) is connected to the inner wall of the box cavity (6) through a spring (19). Two permanent magnets (20) and two toothed plates (21) are fixed on the hollow plate (18). The clamping mechanism includes two clamping rods (3), which are slidably connected to the inner walls of two displacement channels (7). The clamping rods (3) extend above the connecting box (2) and into the box cavity (6). A second cylinder (14) is fixedly connected to the clamping rod (3). The second cylinder (14) is fixedly connected to the inner wall of the box cavity (6). A rotating shaft (9) is rotatably connected inside the clamping rod (3). A clamping block (4) is fixedly connected to the rotating shaft (9). One side wall of the clamping block (4) is flat, and the other side wall of the clamping block (4) is curved. A first transmission wheel (10) is fixedly connected to the rotating shaft (9). A gear (13) is rotatably connected inside the clamping rod (3). A second transmission wheel (12) is fixedly connected to the gear (13). The second transmission wheel (12) is connected to the first transmission wheel (10) through a transmission chain (11). The gear (13) extends below the clamping rod (3).

2. The anti-deviation welding system for steel structures used in factory construction according to claim 1, characterized in that, One of the connecting boxes (2) is connected to a striking mechanism, and the other connecting box (2) is connected to a triggering mechanism.

3. The anti-deviation welding system for steel structures used in factory construction according to claim 2, characterized in that, The striking mechanism includes a striking cylinder (22), which is fixedly connected to one of the connecting boxes (2). The inner wall of the striking cylinder (22) is rotatably connected to an iron-containing pendulum (25) via a limiting pivot. An extension strip (26) is rotatably connected to the iron-containing pendulum (25). A square frame (27), a striking element (29), and a permanent magnet (30) are slidably connected to the inner wall of the striking cylinder (22). An elastic buffer layer (28) is fixedly connected to the square frame (27). The striking element (29) and the elastic buffer layer (28) abut against each other. The extension strip (26) is slidably connected to the inner wall of the square frame (27). The triggering mechanism includes a trigger rod (23), which is fixed to another connecting box (2), and a permanent magnet (24) is fixed to the trigger rod (23).

4. The anti-deviation welding system for steel structures used in factory construction according to claim 3, characterized in that, The inner wall of the box cavity (6) is fixed with a limiting block (8).

5. The anti-deviation welding system for steel structures used in factory construction according to claim 4, characterized in that, The inner wall of the striking cylinder (22) is fixedly connected to a slide rail, and a limiting piece is provided on the slide rail. The permanent magnet four (30) is slidably connected to the slide rail.

6. A steel structure anti-deviation welding system for factory construction according to claim 5, characterized in that, The top wall of the striking element (29) is covered with cotton cloth.

7. A steel structure anti-deviation welding system for factory construction according to claim 6, characterized in that, The permanent magnets 1 (17), 2 (20), 3 (24) and 4 (30) all contain neodymium.

8. A steel structure anti-deviation welding system for factory construction according to claim 7, characterized in that, The base (1) is connected to the controller.

9. A method for anti-deviation welding of steel structures used in factory construction, characterized in that, Using the anti-deviation welding system for steel structure in factory construction as described in any one of claims 1-8, two workpieces (31) are clamped and fixed, and then the two workpieces (31) are welded using a welding machine.

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