Full-automatic submerged arc welding device for section steel

Abstract

The application discloses a full-automatic submerged arc welding device for section steel, which comprises two conveying pipes and two welding wires, conveying channels for feeding flux are arranged in the conveying pipes, wire feeding pipes are arranged in the conveying channels, the welding wires are arranged in the wire feeding pipes, connecting pipes are connected to the conveying pipes, and flux boxes for storing flux are arranged on the connecting pipes. The full-automatic submerged arc welding device for section steel places the wing plates on the bottom plate and places the wave-shaped webs on the wing plates, and the wing plates and the webs can be moved by an external pushing device, so that the two conveying pipes can weld the joint of the wing plates and the webs. Since the web is wave-shaped, the conveying pipe can always face the joint by the facing assembly, so that the welding quality is improved. In the welding process, the flux is fed into the conveying channel through the flux box and the connecting pipe, the flux is discharged from the bottom end of the conveying pipe to the joint, and the wire feeding pipe is pushed to the joint by the external pushing assembly to realize welding.

Description

Technical Field

[0001] This invention relates to the field of glass technology, and in particular to a fully automatic submerged arc welding device for structural steel. Background Technology

[0002] Fully automatic submerged arc welding technology for structural steel is a highly efficient and stable welding method. It utilizes the melting of welding wire and flux under the high temperature of an electric arc to form a continuous weld. Fully automatic submerged arc welding equipment for structural steel features high welding speed, high weld quality, and simple operation. It is widely used in bridges, buildings, ships, automobiles and other fields, and is one of the indispensable welding technologies in modern industrial production.

[0003] There are various types of structural steel currently available. Among them, H-beams can be produced by submerged arc welding, where two flanges are welded to the web to complete the H-beam. Currently, specialized submerged arc welding equipment is typically used for welding H-beams. The web of corrugated H-beams is made of corrugated steel plate. Current welding equipment is only suitable for welding straight steel plates as webs and is difficult to use for corrugated H-beams. Furthermore, the welding head of the current welding equipment cannot be aligned with the curve of the corrugated steel plate to precisely weld the weld, resulting in poor weld quality. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic submerged arc welding device for structural steel, so as to solve the problem mentioned in the background art that the welding head of the current welding device is difficult to align with the weld seam according to the curve of the corrugated steel plate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic submerged arc welding device for structural steel, comprising: two conveying pipes and two welding wires, each conveying pipe being provided with a conveying channel for adding welding flux, each conveying channel being provided with a wire feeding pipe, the welding wire being located inside the wire feeding pipe, each conveying pipe being connected and fixedly connected to a connecting pipe, one end of the connecting pipe being equipped with a flux tank for storing welding flux, and further comprising:

[0006] The base plate has a wing plate, a corrugated web plate, and a component on the base plate to ensure that one end of the conveying pipe is always aligned with the connection between the web plate and the wing plate.

[0007] The front component includes a second rotating rod and a first rotating rod fixed to the conveying pipe. Both the second and first rotating rods are fixed with pulleys, which are connected by a transmission belt. A first gear is slidably connected to the outer surface of the first rotating rod. A first positioning plate, a second positioning plate, a third positioning plate, and a fourth positioning plate are fixed to the top of the base plate. A first rack plate is fixed to the top of the first positioning plate, a second rack plate is fixed to the top of the second positioning plate, a third rack plate is fixed to the top of the third positioning plate, and a fourth rack plate is fixed to the top of the fourth positioning plate. The first and fourth rack plates are at the same height, as are the first gear, the second rack plate, and the third rack plate. The first and second rack plates are on the same side, as are the third and fourth rack plates. The teeth of the second and third rack plates are located on the trajectory of the horizontal movement of the first gear. Multiple first vertices, second vertices, third vertices, and fourth vertices are provided on the web plate.

[0008] As a preferred embodiment of the present invention, the base plate is provided with an adaptation component for adapting the conveying pipe to the corrugated web. The adaptation component includes two first L-shaped plates slidably connected to the top of the base plate, a first rotating rod and a second rotating rod rotatably connected to the first L-shaped plates, a flux box disposed on the first L-shaped plates, a second L-shaped plate fixedly connected to the top of each of the two first L-shaped plates, a rotating shaft rotatably connected to the bottom end of the second L-shaped plates, a rotating wheel fixedly connected to the bottom end of the rotating shaft, two rotating wheels respectively abutting against the two side walls of the corrugated web, a fixing plate fixedly connected to the top of the base plate, and a first spring fixedly connected between the fixing plate and the first L-shaped plates.

[0009] As a preferred embodiment of the present invention, iron blocks are fixedly connected to both the upper and lower ends of the first gear, a first annular plate is fixedly connected to the outer surface of the first rotating rod, a first electromagnet is fixedly connected to the bottom end of the first annular plate, a second annular plate is fixedly connected to the outer surface of the first rotating rod, and a second electromagnet is fixedly connected to the top end of the second annular plate.

[0010] As a preferred embodiment of the present invention, the first rotating rod is provided with an anti-rotation component to prevent the conveying pipe from rotating. The anti-rotation component includes a first rubber block fixedly attached to the first L-shaped plate, a second rubber block slidably connected to the outer surface of the second rotating rod, the second rubber block being in contact with the first rubber block, a circular plate fixedly attached to the second rotating rod, and a second spring fixedly attached between the circular plate and the second rubber block.

[0011] As a preferred embodiment of the present invention, a pressing assembly for pressing the corrugated web is provided on the base plate. The pressing assembly includes a U-shaped frame fixed to the base plate, an electric push rod fixed to the U-shaped frame, a connecting plate fixed to the telescopic end of the electric push rod, a movable block slidably connected to the bottom end of the connecting plate, a rotating shaft rotatably connected to the bottom end of the movable block, a U-shaped plate fixed to the bottom end of the rotating shaft, two round blocks fixed to the U-shaped plate, a connecting shaft fixed between the two round blocks, and a first rotating sleeve rotatably connected to the outer wall of the connecting shaft, which contacts the corrugated web.

[0012] As a preferred embodiment of the present invention, a clamping assembly for clamping the corrugated web is provided on the connecting shaft. The clamping assembly includes two clamping plates slidably connected to the connecting shaft, a bidirectional threaded rod rotatably connected between the two circular blocks, the two clamping plates being threaded to the outer walls of both ends of the bidirectional threaded rod, a fixing frame being fixedly connected to one side of the U-shaped plate, a first motor being fixedly connected to the middle of the fixing frame, and one end of the bidirectional threaded rod being fixedly connected to the output end of the first motor.

[0013] As a preferred embodiment of the present invention, an anti-blocking component is provided on the conveying channel to prevent flux from clogging the conveying channel. The anti-blocking component includes a second rotating sleeve rotatably connected to the outer surface of the wire feeding tube, a spiral blade fixed to the outer surface of the second rotating sleeve, a second gear fixed to the second rotating sleeve, an mounting plate fixed to the conveying tube, a second motor fixed to one side of the mounting plate, and a third gear fixed to the output end of the second motor. The third gear meshes with the second gear.

[0014] As a preferred embodiment of the present invention, a T-shaped slider is fixedly connected to the top of the movable block, and a T-shaped groove that cooperates with the T-shaped slider is provided on the connecting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention places a wing plate on a base plate and a corrugated web plate on the wing plate. An external pushing device can move the wing plate and web plate, allowing two conveying pipes to weld the connection between the wing plate and the web plate. Because the web plate is corrugated, the conveying pipes can always be aligned with the connection point through the alignment component, thereby improving the welding quality. During the welding process, flux is added into the conveying channel through the flux box and connecting pipe. The flux is discharged from the bottom of the conveying pipe to the connection point. The wire feeding pipe is pushed to the connection point by the external pushing component to achieve welding.

[0017] 2. In this invention, an external pushing device drives the wing plate and the web plate to move between two rotating wheels. During the movement, the wavy web plate, in conjunction with the first spring, causes the rotating wheels to reciprocate. The rotating wheels drive the first L-shaped plate to reciprocate via a rotating shaft and a second L-shaped plate. The first L-shaped plate drives the conveying pipe to reciprocate via a second rotating rod, so that the conveying pipe adapts to the wavy web plate. The first L-shaped plate can also drive the first gear to reciprocate via the first rotating rod, so that the first gear moves between multiple racks, thereby achieving the purpose that the conveying pipe can both adapt to the wavy web plate and always be aligned with the connection point. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembled appearance structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the conveying pipe, wire feeding pipe, and welding wire structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0022] Figure 5 This is a schematic diagram of the front component structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the first and second electromagnets of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the first vertex, second vertex, third vertex, and fourth vertex of the present invention;

[0025] Figure 8 This is a schematic diagram of the anti-rotation component structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the clamping assembly structure of the present invention;

[0027] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B;

[0028] Figure 11 This is a schematic diagram of the second rotating sleeve and helical blade structure of the present invention;

[0029] Figure 12 This is a schematic diagram of the second and third gears of the present invention.

[0030] In the diagram: 101, base plate; 102, conveying pipe; 103, conveying channel; 104, wire feeding pipe; 105, welding wire; 106, connecting pipe; 107, flux box; 201, U-shaped frame; 202, first L-shaped plate; 203, second L-shaped plate; 204, rotating shaft; 205, rotating wheel; 206, fixed plate; 207, first spring; 301, first rotating rod; 302, second rotating rod; 303, pulley; 304, transmission belt; 305, first gear; 306, first positioning plate; 307, first rack plate; 308, second positioning plate; 309, second rack plate; 310, third positioning plate; 311, third rack plate; 312, fourth positioning plate; 313, fourth rack plate; 402, iron block; 403, first ring plate; 404, first... Electromagnet; 405, Second annular plate; 406, Second electromagnet; 501, First rubber block; 502, Second rubber block; 503, Circular plate; 504, Second spring; 601, Electric push rod; 602, Connecting plate; 603, Moving block; 604, Rotating shaft; 605, U-shaped plate; 606, Circular block; 607, Connecting shaft; 608, First rotating sleeve; 609, T-shaped slider; 610, T-shaped groove; 701, Clamping plate; 702, Bidirectional threaded rod; 703, Fixing frame; 704, First motor; 801, Second rotating sleeve; 802, Helical blade; 803, Second gear; 804, Mounting plate; 805, Second motor; 806, Third gear; 901, First vertex; 902, Second vertex; 903, Third vertex; 904, Fourth vertex. Detailed Implementation

[0031] 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.

[0032] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] Please see Figure 1-12The fully automatic submerged arc welding device for structural steel provided in this application includes two conveying pipes 102 and two welding wires 105. Each conveying pipe 102 is provided with a conveying channel 103 for adding flux, and each conveying channel 103 is provided with a wire feeding tube 104. The welding wire 105 is located inside the wire feeding tube 104. Each conveying pipe 102 is connected and fixedly connected to a connecting pipe 106. One end of the connecting pipe 106 is equipped with a flux tank 107 for storing flux. The device also includes:

[0034] The base plate 101 is provided with a wing plate, and a corrugated web is provided on the wing plate. The base plate 101 is provided with a positive assembly for ensuring that one end of the conveying pipe 102 is always directly opposite the connection between the web and the wing plate.

[0035] In use, the wing plate is placed on the base plate 101, and the corrugated web plate is placed on the wing plate. The wing plate and web plate can be moved by an external pushing device, so that the two conveying pipes 102 can weld the connection between the wing plate and the web plate. Since the web plate is corrugated, the conveying pipe 102 can always be aligned with the connection by the alignment component, thereby improving the welding quality. During the welding process, flux is added into the conveying channel 103 through the flux box 107 and the connecting pipe 106. The flux is discharged from the bottom of the conveying pipe 102 to the connection. The wire feeding pipe 104 is pushed to the connection by the external pushing component to achieve welding.

[0036] The assembly includes a second rotating rod 302 and a first rotating rod 301 fixedly connected to the conveying pipe 102. Both the second rotating rod 302 and the first rotating rod 301 are fixedly connected to pulleys 303, which are connected by a transmission belt 304. A first gear 305 is slidably connected to the outer surface of the first rotating rod 301. A first positioning plate 306, a second positioning plate 308, a third positioning plate 310, and a fourth positioning plate 312 are fixedly connected to the top of the base plate 101. A first rack plate 307 is fixedly connected to the top of the first positioning plate 306, a second rack plate 309 is fixedly connected to the top of the second positioning plate 308, and a third rack plate 309 is fixedly connected to the top of the third positioning plate 310. The top end is fixed with a third rack plate 311, and the top end of the fourth positioning plate 312 is fixed with a fourth rack plate 313. The first rack plate 307 and the fourth rack plate 313 are at the same height. The first gear 305, the second rack plate 309 and the third rack plate 311 are at the same height. The first rack plate 307 and the second rack plate 309 are located on the same side. The third rack plate 311 and the fourth rack plate 313 are located on the same side. The teeth of the second rack plate 309 and the third rack plate 311 are located on the trajectory of the horizontal movement of the first gear 305. The web plate is provided with multiple first vertices 901, second vertices 902, third vertices 903 and fourth vertices 904.

[0037] Because the web is wavy, the conveying pipe 102 must be aligned with the connection point for effective and high-quality welding. During the welding process at the connection between the flange and the web, one end of the conveying pipe 102 passes sequentially from the first vertex 901, through the second vertex 902, the third vertex 903, and the fourth vertex 904, to the next first vertex 901, forming a loop. First, the first gear 305 moves upward, and the first gear 305, the first rack plate 307, and the fourth rack plate 313 are at the same height. Then, the conveying pipe 102, the first rotating rod 301, and the second rotating rod 302 move simultaneously away from the web. During the movement, the first gear 305 meshes with the first rack plate 307, which drives the first gear 305 to rotate. The first gear 305 then drives the first rotating rod 301 to rotate. The first rotating rod 301, through the pulley 303 and the transmission belt 304, drives the second rotating rod 302 to rotate. The second rotating rod 302 drives the conveying pipe 102 to rotate, ensuring that one end of the conveying pipe 102 is aligned as directly as possible with the connection point. When the first gear 305 has completely passed the first rack plate 307, one end of the conveying pipe 102 is aligned with the fourth vertex 904. As the first gear 305 continues to move, it will mesh with the fourth... The fourth rack plate 313 engages with the fourth rack plate 313, driving the first gear 305 to rotate, thereby driving the conveying pipe 102 to rotate. When the first gear 305 has completely passed the fourth rack plate 313, one end of the conveying pipe 102 is directly opposite the next first vertex 901, causing the first gear 305 to move downwards. The first gear 305 is at the same height as the second rack plate 309 and the third rack plate 311, causing the conveying pipe 102, the first rotating rod 301, and the second rotating rod 302 to move simultaneously towards the web. During the movement, the first gear 305 first engages with the second rack plate 309, and the second rack plate 309... The first gear 305 is driven to rotate, which in turn drives the conveying pipe 102 to rotate. When the first gear 305 has completely passed the second rack plate 309, one end of the conveying pipe 102 is directly opposite the second vertex 902. As the first gear 305 continues to move, it will mesh with the third rack plate 311. The third rack plate 311 drives the first gear 305 to rotate, thereby driving the conveying pipe 102 to rotate. When the first gear 305 has completely passed the third rack plate 311, one end of the conveying pipe 102 is directly opposite the third vertex 903. The welding process forms a cycle, achieving the goal of ensuring that the conveying pipe 102 is always directly opposite the connection point.

[0038] See Figure 2The base plate 101 is provided with an adaptation component for adapting the conveying pipe 102 to the corrugated web. The adaptation component includes two first L-shaped plates 202 slidably connected to the top of the base plate 101, a first rotating rod 301 and a second rotating rod 302 rotatably connected to the first L-shaped plates 202, a flux box 107 disposed on the first L-shaped plates 202, a second L-shaped plate 203 fixedly connected to the top of each of the two first L-shaped plates 202, a rotating shaft 204 rotatably connected to the bottom end of the second L-shaped plate 203, a rotating wheel 205 fixedly connected to the bottom end of the rotating shaft 204, and two rotating wheels 205 respectively abutting against the two side walls of the corrugated web. A fixing plate 206 is fixedly connected to the top of the base plate 101, and a first spring 207 is fixedly connected between the fixing plate 206 and the first L-shaped plates 202.

[0039] An external propulsion device drives the wing plate and the web plate to move between two rotating wheels 205. During the movement, the wavy web plate, in conjunction with the first spring 207, causes the rotating wheels 205 to reciprocate. The rotating wheels 205 drive the first L-shaped plate 202 to reciprocate via the rotating shaft 204 and the second L-shaped plate 203. The first L-shaped plate 202 drives the conveying pipe 102 to reciprocate via the second rotating rod 302, so that the conveying pipe 102 adapts to the wavy web plate. The first L-shaped plate 202 can also drive the first gear 305 to reciprocate via the first rotating rod 301, so that the first gear 305 moves between multiple racks, thereby achieving the purpose that the conveying pipe 102 can both adapt to the wavy web plate and always be aligned with the connection point.

[0040] See Figure 6 Iron blocks 402 are fixed to both the upper and lower ends of the first gear 305. A first ring plate 403 is fixed to the outer surface of the first rotating rod 301. A first electromagnet 404 is fixed to the bottom end of the first ring plate 403. A second ring plate 405 is fixed to the outer surface of the first rotating rod 301. A second electromagnet 406 is fixed to the top end of the second ring plate 405.

[0041] When it is necessary for the first gear 305 to move upward, the first electromagnet 404 is turned on and the second electromagnet 406 is turned off. The first electromagnet 404 can drive the first gear 305 to move upward through the iron block 402, so that the first gear 305 is at the same height as the first rack plate 307 and the fourth rack plate 313. When it is necessary for the first gear 305 to move downward, the first electromagnet 404 is turned off and the second electromagnet 406 is turned on. The second electromagnet 406 can drive the first gear 305 to move downward through the iron block 402, so that the first gear 305 is at the same height as the second rack plate 309 and the third rack plate 311.

[0042] See Figure 8The first rotating rod 301 is provided with an anti-rotation component to prevent the conveying pipe 102 from rotating. The anti-rotation component includes a first rubber block 501 fixedly attached to the first L-shaped plate 202, a second rubber block 502 slidably connected to the outer surface of the second rotating rod 302, the second rubber block 502 and the first rubber block 501 in contact with each other, a circular plate 503 fixedly attached to the second rotating rod 302, and a second spring 504 fixedly attached between the circular plate 503 and the second rubber block 502.

[0043] When the first gear 305 is completely disengaged from the rack, the first rubber block 501 and the second rubber block 502 come into contact with each other to prevent the second rotating rod 302 from rotating arbitrarily. The second spring 504 provides support force to the second rubber block 502, so that there is a large frictional force between the second rubber block 502 and the first rubber block 501.

[0044] See Figure 9 The base plate 101 is provided with a clamping assembly for clamping the corrugated web. The clamping assembly includes a U-shaped frame 201 fixed to the base plate 101, an electric push rod 601 fixed to the U-shaped frame 201, a connecting plate 602 fixed to the telescopic end of the electric push rod 601, a moving block 603 slidably connected to the bottom end of the connecting plate 602, a rotating shaft 604 rotatably connected to the bottom end of the moving block 603, a U-shaped plate 605 fixed to the bottom end of the rotating shaft 604, two round blocks 606 fixed to the U-shaped plate 605, a connecting shaft 607 fixed between the two round blocks 606, and a first rotating sleeve 608 rotatably connected to the outer wall of the connecting shaft 607 in contact with the corrugated web.

[0045] When welding the flange to the web plate is required, the web plate needs to be pressed tightly. The electric push rod 601 is activated, and its telescopic end moves the connecting plate 602 downwards. The connecting plate 602 moves the moving block 603, the rotating shaft 604, and the U-shaped plate 605. The U-shaped plate 605 moves the two circular blocks 606 and the connecting shaft 607 downwards. The connecting shaft 607 moves the first rotating sleeve 608 downwards, pressing the web plate tightly to prevent displacement during welding. As the web plate moves forward, the first rotating sleeve 608 rolls on the web plate. The connecting shaft 607, the circular blocks 606, and the U-shaped plate 605 reciprocate with the wavy web plate. Specifically, the U-shaped plate 605 reciprocates on the moving block 603 via the rotating shaft 604, and the moving block 603 reciprocates on the connecting plate 602.

[0046] See Figure 10A clamping assembly for clamping the corrugated web is provided on the connecting shaft 607. The clamping assembly includes two clamping plates 701 slidably connected to the connecting shaft 607, and a bidirectional threaded rod 702 rotatably connected between two round blocks 606. The two clamping plates 701 are threaded to the outer walls of both ends of the bidirectional threaded rod 702. A fixing frame 703 is fixed to one side of the U-shaped plate 605. A first motor 704 is fixed to the middle of the fixing frame 703. One end of the bidirectional threaded rod 702 is fixed to the output end of the first motor 704.

[0047] When it is necessary to clamp the web plate, the first motor 704 is started. The output end of the first motor 704 drives the bidirectional threaded rod 702 to rotate. The bidirectional threaded rod 702 drives the two clamping plates 701 to move closer to each other, clamping and fixing the web plate to prevent displacement of the web plate.

[0048] After the web plate welding is completed, the first motor 704 is started in reverse. The output end of the first motor 704 drives the bidirectional threaded rod 702 to rotate. The bidirectional threaded rod 702 drives the two clamping plates 701 to move away from each other and move the two clamping plates 701 to contact the corresponding circular block 606, thereby releasing the clamping state of the web plate.

[0049] See Figure 11 and Figure 12 The conveying channel 103 is provided with an anti-blocking component to prevent flux from clogging in the conveying channel 103. The anti-blocking component includes a second rotating sleeve 801 rotatably connected to the outer surface of the wire feeding tube 104. A spiral blade 802 is fixed to the outer surface of the second rotating sleeve 801. A second gear 803 is fixed to the second rotating sleeve 801. A mounting plate 804 is fixed to the conveying tube 102. A second motor 805 is fixed to one side of the mounting plate 804. A third gear 806 is fixed to the output end of the second motor 805. The third gear 806 meshes with the second gear 803.

[0050] When the flux enters the connecting pipe 106, the second motor 805 is started. The output end of the second motor 805 drives the third gear 806 to rotate. The third gear 806 drives the second gear 803 to rotate. The second gear 803 drives the second rotating sleeve 801 and the spiral blade 802 to rotate. The rotation of the spiral blade 802 can promote welding in the conveying channel 103 and prevent the flux from getting blocked in the conveying channel 103.

[0051] See Figure 9 The top of the movable block 603 is fixedly connected to a T-shaped slider 609, and the connecting plate 602 is provided with a T-shaped groove 610 that cooperates with the T-shaped slider 609.

[0052] By providing a T-shaped slider 609 and a T-shaped groove 610, when the moving block 603 is sliding, the moving block 603 will drive the T-shaped slider 609 to slide within the T-shaped groove 610. The T-shaped groove 610 can guide and limit the T-shaped slider 609 and the moving block 603, thereby improving the stability of the moving block 603 during the movement process.

[0053] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A full-automatic submerged arc welding device for profile steel, comprising: Two conveying pipes (102) and two welding wires (105), the conveying pipe (102) is provided with a conveying channel (103) for feeding flux, the conveying channel (103) is provided with a wire feeding pipe (104), the welding wire (105) is located in the wire feeding pipe (104), the conveying pipe (102) is connected with a connecting pipe (106), one end of the connecting pipe (106) is provided with a flux tank (107) for storing flux, characterized by further comprising: A bottom plate (101) is provided with a wing plate, the wing plate is provided with a wave-shaped web, the bottom plate (101) is provided with a facing assembly for making one end of the conveying pipe (102) always face the joint of the web and the wing plate; The facing assembly comprises a second rotating rod (302) and a first rotating rod (301) fixed on the conveying pipe (102), the second rotating rod (302) and the first rotating rod (301) are both fixed with a belt pulley (303), the two belt pulleys (303) are drivingly connected by a transmission belt (304), the outer surface of the first rotating rod (301) is slidingly connected with a first gear (305), the top end of the bottom plate (101) is fixed with a first positioning plate (306), a second positioning plate (308), a third positioning plate (310) and a fourth positioning plate (312), the top end of the first positioning plate (306) is fixed with a first rack plate (307), the top end of the second positioning plate (308) is fixed with a second rack plate (309), the top end of the third positioning plate (310) is fixed with a third rack plate (311), the top end of the fourth positioning plate (312) is fixed with a fourth rack plate (313), the first rack plate (307) and the fourth rack plate (313) have the same height, the first gear (305), the second rack plate (309) and the third rack plate (311) have the same height, the first rack plate (307) and the second rack plate (309) are located on the same side, the third rack plate (311) and the fourth rack plate (313) are located on the same side, the teeth of the second rack plate (309) and the third rack plate (311) are located on the trajectory of the horizontal movement of the first gear (305), the web is provided with a plurality of first apexes (901), second apexes (902), third apexes (903) and fourth apexes (904); During the welding process of the joint of the wing plate and the web, one end of the conveying pipe (102) passes through the second apex (902), the third apex (903) and the fourth apex (904) in sequence from the first apex (901) to reach the next first apex (901) to form a cycle.

2. The full-automatic submerged arc welding device for profile steel according to claim 1, characterized in that, The bottom plate (101) is provided with an adapting assembly for adapting the conveying pipe (102) to the wave-shaped web, the adapting assembly comprises two first L-shaped plates (202) slidably connected to the top of the bottom plate (101), the first rotating rod (301) and the second rotating rod (302) are rotatably connected to the first L-shaped plate (202), the flux box (107) is arranged on the first L-shaped plate (202), the top of each of the two first L-shaped plates (202) is fixedly connected with a second L-shaped plate (203), the bottom end of the second L-shaped plate (203) is rotatably connected with a rotating shaft (204), the bottom end of the rotating shaft (204) is fixedly connected with a rotating wheel (205), the two rotating wheels (205) are respectively abutted against the two side walls of the wave-shaped web, the top of the bottom plate (101) is fixedly connected with a fixed plate (206), and the fixed plate (206) is fixedly connected with the first L-shaped plate (202) and the first spring (207).

3. The full-automatic submerged arc welding device for profile steel according to claim 2, characterized in that, The upper and lower ends of the first gear (305) are fixedly connected with iron blocks (402), the outer surface of the first rotating rod (301) is fixedly connected with a first annular plate (403), the bottom end of the first annular plate (403) is fixedly connected with a first electromagnet (404), the outer surface of the first rotating rod (301) is fixedly connected with a second annular plate (405), and the top end of the second annular plate (405) is fixedly connected with a second electromagnet (406).

4. The full-automatic submerged arc welding device for profile steel according to claim 3, characterized in that, The first rotating rod (301) is provided with an anti-rotation assembly for preventing the conveying pipe (102) from rotating, the anti-rotation assembly comprises a first rubber block (501) fixedly connected to the first L-shaped plate (202), the outer surface of the second rotating rod (302) is slidably connected with a second rubber block (502), the second rubber block (502) is in contact with the first rubber block (501), the second rotating rod (302) is fixedly connected with a circular plate (503), and the circular plate (503) is fixedly connected with the second spring (504) between the second rubber block (502).

5. The full-automatic submerged arc welding device for profile steel according to claim 4, characterized in that, The bottom plate (101) is provided with a pressing assembly for pressing the wave-shaped web, the pressing assembly comprises a U-shaped frame (201) fixedly connected to the bottom plate (101), the U-shaped frame (201) is fixedly connected with an electric push rod (601), the telescopic end of the electric push rod (601) is fixedly connected with a connecting plate (602), the bottom end of the connecting plate (602) is slidably connected with a moving block (603), the bottom end of the moving block (603) is rotatably connected with a rotating shaft (604), the bottom end of the rotating shaft (604) is fixedly connected with a U-shaped plate (605), two circular blocks (606) are fixedly connected on the U-shaped plate (605), a connecting shaft (607) is fixedly connected between the two circular blocks (606), and the outer wall of the connecting shaft (607) is rotatably connected with a first rotating sleeve (608) in contact with the wave-shaped web.

6. The full-automatic submerged arc welding device for profile steel according to claim 5, characterized in that, The connecting shaft (607) is provided with a clamping assembly for clamping the wave-shaped web, the clamping assembly comprises two clamping plates (701) slidably connected to the connecting shaft (607), a bidirectional threaded rod (702) is rotatably connected between the two circular blocks (606), the two clamping plates (701) are threadedly connected to the outer walls of the two ends of the bidirectional threaded rod (702), one side of the U-shaped plate (605) is fixedly connected with a fixing frame (703), the middle part of the fixing frame (703) is fixedly connected with a first motor (704), and one end of the bidirectional threaded rod (702) is fixedly connected to the output end of the first motor (704).

7. The full-automatic submerged arc welding device for profile steel according to claim 6, characterized in that, The conveying channel (103) is provided with an anti-blocking assembly for preventing the welding agent from being blocked in the conveying channel (103), the anti-blocking assembly comprises a second rotating sleeve (801) rotatably connected to the outer surface of the wire feeding pipe (104), the outer surface of the second rotating sleeve (801) is fixedly connected with a spiral blade (802), the second rotating sleeve (801) is fixedly connected with a second gear (803), the conveying pipe (102) is fixedly connected with a mounting plate (804), one side of the mounting plate (804) is fixedly connected with a second motor (805), the output end of the second motor (805) is fixedly connected with a third gear (806), and the third gear (806) is meshed with the second gear (803).

8. The full-automatic submerged arc welding device for profile steel according to claim 7, characterized in that, The top end of the moving block (603) is fixedly connected with a T-shaped sliding block (609), and the connecting plate (602) is provided with a T-shaped sliding groove (610) matched with the T-shaped sliding block (609).

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