A welding auxiliary positioning device for steel structure construction

Abstract

The present invention belongs to the technical field of steel structure welding, and specifically relates to a welding auxiliary positioning device for steel structure construction, including a positioning mechanism, etc.; the positioning mechanism is provided with at least four groups, and the steel column is limited by all the positioning mechanisms in cooperation. The present invention realizes that by magnetically attracting four fixing plates to the outer surface of the lower steel column, and then manually pushing four plugs in sequence, the four plugs are all moved to the upper surface of the lower steel column, and the plugs are locked by the corresponding elastic member I, and the upper steel column is limited by all the limit blocks, so that the upper steel column and the lower steel column remain flush, by twisting all the bolts until all the limit blocks are against the surface of the upper steel column, and then the clamp I is installed on the four fixing plates, and the clamp I is locked, so that the two steel columns are tightly held and the two steel columns are kept flush, thereby realizing auxiliary positioning of the two steel columns.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure welding, and in particular relates to a welding auxiliary positioning device for steel structure construction. Background Art

[0002] Steel structure engineering is a structure made mainly of steel materials, mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. The components or parts are usually connected by welds, bolts or rivets. It is one of the main types of building structures.

[0003] Based on the prior art, it is found that when welding steel columns, in order to position the steel columns, it is necessary to weld an ear plate on each of the four outer surfaces of the steel columns. After the two steel columns are butt-jointed, a double plywood is used to clamp the ear plates on the steel columns and lock them with bolts. In this way, the welding efficiency is low and the loss is large. In addition, when the welding position is high, the labor intensity of manual welding is high. At the same time, the smoke generated during welding is easy to pollute the working environment and endanger the human body. The waste generated during welding is easy to adhere to the part to be welded, affecting the strength of the weld. Summary of the invention

[0004] In order to overcome the shortcomings of cumbersome positioning process during steel column welding, resulting in low efficiency and large loss, the present invention provides a welding auxiliary positioning device for steel structure construction.

[0005] The technical solution of the present invention is: a welding auxiliary positioning device for steel structure construction, including a positioning mechanism; the positioning mechanism is provided with at least four groups, and the steel column is limited by all the positioning mechanisms cooperating with each other; it also includes a clamp I, a plug, an elastic member I, an electric slider I, a bracket, an electric actuator I, a sliding frame, a welding gun and a steering welding mechanism; each group of positioning mechanisms is detachably connected with a clamp I; each group of positioning mechanisms is connected with a plug; each group of positioning mechanisms is connected with at least two elastic members I; the clamp I is provided with at least two sliding grooves, and an electric slider I is slidably connected in each sliding groove; each electric slider I is fixedly connected with a bracket; each bracket is fixedly connected with an electric actuator I; the telescopic part of each electric actuator I is fixedly connected with a sliding frame; each sliding frame is slidably connected with a bracket; each sliding frame is installed with a welding gun; the positioning mechanism is detachably connected with a steering welding mechanism for auxiliary welding of two steel columns.

[0006] As a further preferred scheme, each group of positioning mechanisms includes a fixed plate, bolts, a limit block and a top block; at least two bolts are connected to the upper part of the fixed plate; each bolt is connected to a limit block through a ball head; at least two top blocks are fixed to the lower part of the fixed plate, and each top block is provided with a magnet.

[0007] As a further preferred solution, an upper portion of a side of the limiting block away from the bolt is cut into a bevel.

[0008] As a further preferred embodiment, the steering welding mechanism includes a cross, a clamp II, an electric slider II, a fixed block, an electric actuator II and a baffle; a cross is detachably connected to the upper end of each fixed plate; a clamp II is detachably connected to all crosses; at least two electric sliders II are slidably connected to the clamp II; each electric slider II is fixedly connected to a fixed block; an electric actuator II is fixedly connected to the lower part of each fixed block, and the electric actuator II is an electric push rod; the telescopic part of each electric actuator II is fixedly connected to a baffle, and a through groove for the movement of the welding gun is provided at the lower part of the baffle.

[0009] As a further preferred solution, the baffle is made of a light-shielding material.

[0010] As a further preferred solution, a fixing plate is also included; the fixing plate is fixedly connected in the through groove at the lower part of the baffle, and a round hole for placing the welding gun is opened on the fixing plate.

[0011] As a further preferred solution, it also includes a bent pipe and an air pipe; the upper part of the baffle is fixedly connected to the bent pipe; the lower part of the bent pipe is connected to at least two air pipes; all the air pipes are fixedly connected to the baffle, and the lower ends of all the air pipes are located in the through groove at the lower part of the baffle.

[0012] As a further preferred scheme, it also includes a waterproof system; the waterproof system is connected to the clamp II; the waterproof system includes a water retaining strip, a guide plate, a limiting ring, an elastic plate, a limiting plate, an elastic member II, a circular ring and a guide tube; each limiting block located above is detachably connected to a water retaining strip, and the water retaining strip is arranged in an inclined shape; at least four guide plates are fixedly connected to the upper surface of the clamp II in an equidistant manner; the upper surface of the clamp II is fixedly connected to a limiting ring, and the limiting ring is located on the outside of all the guide plates, and a plurality of water guide holes are opened on the limiting ring; an elastic plate is fixedly connected to each cross, and each elastic plate is provided with an electromagnetic heating wire; a limiting plate is slidably connected to the upper part of each cross, and an elastic member II is fixedly connected between each limiting plate and the corresponding cross; a circular ring is slidably connected to the lower outer side of the limiting ring; at least two guide tubes are connected to the circular ring; each guide tube is fixedly connected to a fixed block.

[0013] As a further preferred embodiment, the outer surface of the guide plate is coated with a hydrophobic coating.

[0014] As a further preferred solution, one end of the elastic plate away from the cross is configured to be wavy.

[0015] The advantages and positive effects of the present invention are:

[0016] (1) By magnetically attaching four fixing plates to the outer surface of the lower steel column, and then manually pushing the four plugs in sequence, the four plugs are moved to the upper surface of the lower steel column, and the plugs are locked by the corresponding elastic parts I, and the upper steel column is limited by all the limit blocks, so that the upper steel column and the lower steel column remain flush.

[0017] (2) Twist all the bolts until all the limit blocks are against the surface of the upper steel column, then install the clamp I on the four fixing plates and lock the clamp I, so that the four fixing plates are locked by the clamp I, and then the two steel columns are held tightly and kept flush, so as to achieve auxiliary positioning of the two steel columns. At the same time, by setting the four plugs, a weld is reserved between the two steel columns, and the height of the weld is the thickness of the plug.

[0018] (3) By inserting the welding gun into the fixing plate and aligning the welding gun with the weld between the two steel columns, the fixing plate is moved to drive the welding gun to move, so that the worker can be more stable when welding, and the baffle is used to protect the worker's eyes, reducing the damage to the eyes caused by the strong light generated during welding.

[0019] (4) The electric slider I is started to move along the clamp I, thereby driving the welding gun to move. At the same time, the electric slider II is controlled to move along the clamp II, thereby driving the baffle and the fixing plate to move synchronously, so that the welding gun can move along the weld between the two steel columns, and the two steel columns are welded by the welding gun, thereby realizing automated welding, which greatly reduces the labor intensity of manual labor, and uses two air pipes to suck the smoke and waste generated during welding, thereby improving the air quality in the workplace, and at the same time reducing the waste attached to the welding part, thereby improving the reliability of welding.

[0020] (5) The lower end of the steel column is dried by the electromagnetic heating wire in the elastic plate, and the lower end of the steel column is heated by the electromagnetic heating wire, so as to avoid moisture in the weld of the steel column and preheat the weld of the steel column. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the welding auxiliary positioning device for steel structure construction of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation position of the fixing plate of the welding auxiliary positioning device for steel structure construction of the present invention;

[0023] Figure 3 It is a top view of the welding auxiliary positioning device for steel structure construction of the present invention;

[0024] Figure 4It is a schematic diagram of the three-dimensional structure of the steel column and ear plate combination of the welding auxiliary positioning device for steel structure construction of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning mechanism of the welding auxiliary positioning device for steel structure construction of the present invention;

[0026] Figure 6 It is a schematic diagram of the installation positions of the plug piece and the elastic member I of the welding auxiliary positioning device for steel structure construction of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the steel column, fixing plate, bolt, limit block, top block, clamp I and plug piece of the welding auxiliary positioning device for steel structure construction of the present invention;

[0028] Figure 8 This is a schematic diagram of the installation position of the welding gun of the welding auxiliary positioning device for steel structure construction of the present invention;

[0029] Fig. 9 This is a schematic diagram of the installation positions of the elbow and the air pipe of the welding auxiliary positioning device for steel structure construction of the present invention;

[0030] Fig.10 It is a schematic diagram of the installation positions of the guide plate and the limit ring of the welding auxiliary positioning device for steel structure construction of the present invention;

[0031] Fig.11 The present invention is a combined cross-sectional view of a clamp II, a fixing block, a limiting ring, a circular ring and a guide pipe of a welding auxiliary positioning device for steel structure construction of the present invention.

[0032] Among them: 1-steel column, 201-fixed plate, 202-bolt, 203-limit block, 2031-water retaining strip, 204-top block, 205-clamp I, 206-plug, 207-elastic part I, 301-electric slider I, 302-bracket, 303-electric actuator I, 304-sliding frame, 305-welding gun, 306-cross, 307-clamp II, 308-electric slider II, 309-fixed block, 310-electric actuator II, 311-baffle, 31101-fixed plate, 312-elastic pipe, 313-trachea, 401-guide plate, 402-limiting ring, 403-elastic plate, 404-limiting plate, 405-elastic part II, 406-ring, 407-guide pipe. DETAILED DESCRIPTION

[0033] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0034] Embodiment 1:

[0035] A welding auxiliary positioning device for steel structure construction, according to Figure 1-Figure 9As shown, it includes a positioning mechanism; the positioning mechanism is provided with four groups, and the steel column 1 is limited by the four groups of positioning mechanisms cooperating with each other;

[0036] It also includes a clamp Ⅰ205, a plug 206, an elastic member Ⅰ207, an electric slider Ⅰ301, a bracket 302, an electric actuator Ⅰ303, a sliding frame 304, a welding gun 305 and a steering welding mechanism; each set of positioning mechanisms is detachably connected to a clamp Ⅰ205; each set of positioning mechanisms is connected to a plug 206; each set of positioning mechanisms is connected to two elastic members Ⅰ207, and the elastic members Ⅰ207 are spring telescopic rods; the outer side of the clamp Ⅰ205 is provided with two sliding grooves, and each sliding groove is slidably connected to a Electric slider Ⅰ301; each electric slider Ⅰ301 is fixedly connected to a bracket 302; each bracket 302 is fixedly connected to an electric actuator Ⅰ303, and the electric actuator Ⅰ303 is an electric push rod; the telescopic part of each electric actuator Ⅰ303 is fixedly connected to a sliding frame 304; each sliding frame 304 is slidably connected to a bracket 302; each sliding frame 304 is installed with a welding gun 305; the positioning mechanism is detachably connected to a steering welding mechanism for auxiliary welding of two steel columns 1.

[0037] Each positioning mechanism includes a fixed plate 201, bolts 202, a limit block 203 and a top block 204; two bolts 202 are connected to the upper part of the fixed plate 201; each bolt 202 is connected to a limit block 203 through a ball head; two top blocks 204 are fixedly connected to the lower part of the fixed plate 201, and each top block 204 is provided with a magnet.

[0038] The upper portion of the side of the limiting block 203 away from the bolt 202 is cut into an inclined surface for guiding the steel column 1 .

[0039] The steering welding mechanism includes a cross 306, a clamp II 307, an electric slider II 308, a fixed block 309, an electric actuator II 310 and a baffle 311; a cross 306 is detachably connected to the upper end of each fixed plate 201; a clamp II 307 is detachably connected to the four crosses 306; two electric sliders II 308 are slidably connected to the clamp II 307; a fixed block 309 is fixedly connected to each electric slider II 308; an electric actuator II 310 is fixedly connected to the lower part of each fixed block 309, and the electric actuator II 310 is an electric push rod; a baffle 311 is fixedly connected to the telescopic part of each electric actuator II 310, and a through groove for the movement of the welding gun 305 is opened at the lower part of the baffle 311.

[0040] The baffle 311 is made of a light-shielding material to protect the human body.

[0041] The baffle 311 also includes a fixing plate 31101 . The fixing plate 31101 is fixedly connected to the through groove at the lower part of the baffle 311 , and a round hole is opened on the fixing plate 31101 for placing the welding gun 305 .

[0042] It also includes a curved pipe 312 and an air pipe 313; the curved pipe 312 is fixedly connected to the upper part of the baffle 311; the lower part of the curved pipe 312 is fixedly connected and connected to two air pipes 313; all the air pipes 313 are fixedly connected to the baffle 311, and the lower ends of all the air pipes 313 are located in the through groove at the lower part of the baffle 311.

[0043] Before welding the two steel columns 1: the lower steel column 1 is pre-connected to the ground by bolts 202, and then the upper steel column 1 is hoisted by an external hoisting device. In the prior art, when welding the steel column 1, in order to position the steel column 1, an ear plate needs to be welded on each of the four outer surfaces of the steel column 1. After the two steel columns 1 are butt-jointed, the ear plates on the steel columns 1 are clamped by double clamping plates and locked by bolts 202. Figure 4 As shown, this method has low efficiency and high loss. In order to solve the above problems, the four fixing plates 201 are manually mounted on the four outer surfaces of the steel column 1 below, that is, the two top blocks 204 at the bottom of each fixing plate 201 are magnetically attracted to each outer surface of the steel column 1 below. At this time, the top block 204 fits the outer surface of the steel column 1 below, and then the four plugs 206 are manually pushed in turn, so that the four plugs 206 are all moved to the upper surface of the steel column 1 below, and the plugs 206 are locked by the corresponding elastic member I 207, as shown in FIG. Figure 6 As shown, the external lifting equipment is then controlled to slowly lower the upper steel column 1 until the lower surface of the upper steel column 1 is against the four plugs 206, and during the lowering process, the upper steel column 1 is limited by all the limit blocks 203, so that the upper steel column 1 and the lower steel column 1 remain flush, and then all the bolts 202 are manually twisted in sequence until all the limit blocks 203 are against the surface of the upper steel column 1, and then the clamp I 205 is installed on the four fixing plates 201, and the clamp I 205 is locked, so that the four fixing plates 201 are locked by the clamp I 205, and then the two steel columns 1 are held tightly, and the two steel columns 1 are kept flush, thereby realizing auxiliary positioning of the two steel columns 1, and at the same time, through the setting of the four plugs 206, a weld is reserved between the two steel columns 1, and the height of the weld is the thickness of the plug 206.

[0044] For ease of description, the following will take the operation process of a set of steering welding mechanisms as an example. When the welding position height of the two steel columns 1 is low and the welding operation can be performed manually, the welding gun 305 is manually held to control the electric actuator II 310 to start and drive the baffle 311 to move toward the direction of the steel column 1, and then the welding gun 305 is inserted into the fixing plate 31101, and at the same time, the welding gun 305 is aligned with the weld between the two steel columns 1, and then the electric slider II 308 is controlled to start and drive the fixing block 309 to move, and the movement of the fixing block 309 drives the electric actuator II 310 to move, and the movement of the electric actuator II 310 drives the baffle 311 to move, and the movement of the baffle 311 drives the fixing plate 31101 to move, and then the welding gun 305 is driven to move by the fixing plate 31101, so that manual welding is more stable. At the same time, since the baffle 311 is made of a shading material, the baffle 311 can protect the eyes of the human body and reduce the damage to the eyes caused by the strong light generated during welding. The range of movement of the fixed block 309 driven by the electric slider II 308 is less than ninety degrees, that is, the two steel columns 1 are fixed by spot welding before all the fixed plates 201 and all the plugs 206 are removed. After the spot welding is completed, all the plugs 206 are manually reset, and all the fixed plates 201 are removed, and then full welding is performed to complete the welding operation of the two steel columns 1. At the same time, in order to further improve the welding efficiency, after the spot welding of the two steel columns 1 is completed, the clamp I 205 and all the fixed plates 201 can be removed and loaded on another steel column 1 to be welded, and the positioning operation is completed in advance, thereby improving the welding efficiency.

[0045] When the height of the two steel columns 1 is high, that is, the height of the welding position of the two steel columns 1 is high, and the manual welding operation is difficult, it is expected that the external pump machine will be connected to the elbow 312. After the installation of the clamp Ⅰ205 is completed, two electric sliders Ⅰ are installed on the clamp Ⅰ205, and then the electric slider Ⅰ301 is controlled to move 301 along the clamp Ⅰ205, and the corresponding bracket 302, electric actuator Ⅰ303, sliding frame 304, and welding gun 305 are all installed. At this time, the two welding guns 305 are each located on a fixed plate 31101, and the movement of the electric slider Ⅰ301 drives all the connected parts to move, and then drives the welding gun 305 to move. At the same time, the electric slider Ⅱ308 is controlled to move along the clamp Ⅱ307, and the movement of the electric slider Ⅱ308 drives all the connected parts to move, thereby driving the baffle 311 and the fixed plate 31101 synchronously. The baffle 311, the fixing plate 31101 and the welding gun 305 move synchronously, and the welding gun 305 is controlled to start operation. At the same time, the electric actuator I 303 is controlled to move to drive the sliding frame 304 to move. The movement of the sliding frame 304 drives the welding gun 305 to move, so that the welding gun 305 can move along the weld between the two steel columns 1, so that the two steel columns 1 are welded by the welding gun 305, thereby realizing automated welding, which greatly reduces the labor intensity of manual labor. In addition, smoke and waste chips are generated during welding. By controlling the operation of the external pump to suck air, negative pressure is generated in the bent pipe 312, so that the smoke and waste chips generated during welding are sucked through the two air pipes 313, thereby improving the air quality in the workplace and reducing the attachment of waste chips to the welded parts, thereby improving the reliability of welding.

[0046] Embodiment 2:

[0047] Based on the first embodiment, according to Figure 2 and Figure 10-11As shown, it also includes a waterproof system; the waterproof system is connected to the clamp II 307; the waterproof system includes a water retaining strip 2031, a guide plate 401, a limiting ring 402, an elastic plate 403, a limiting plate 404, an elastic member II 405, a ring 406 and a guide pipe 407; each limiting block 203 located above is detachably connected to a water retaining strip 2031, and the water retaining strip 2031 is set to an inclined shape; four guide plates 401 are fixedly connected to the upper surface of the clamp II 307 at equal intervals; the limiting ring 402 is fixedly connected to the upper surface of the clamp II 307, and the limiting ring 402 is located at all guide plates 401 On the outside of the limit ring 402, a plurality of water guide holes are equidistantly arranged in an annular shape; each cross 306 is fixedly connected to an elastic plate 403, and each elastic plate 403 is provided with an electromagnetic heating wire; each cross 306 is slidably connected to a limit plate 404 on the upper part, and an elastic member II 405 is fixedly connected between each limit plate 404 and the corresponding cross 306, and the elastic member II 405 is a spring; a circular ring 406 is slidably connected to the lower part of the outer side of the limit ring 402; two guide pipes 407 are fixedly connected and communicated with the circular ring 406; each guide pipe 407 is fixedly connected to a fixed block 309.

[0048] The outer surface of the guide plate 401 is coated with a hydrophobic coating for better water diversion.

[0049] One end of the elastic plate 403 away from the cross 306 is configured to be wavy in shape, so as to increase the length of the internal heating wire.

[0050] When the steel column 1 is constructed on the construction site, it will be placed horizontally and piled on the ground. When there is water on the ground, it is very easy for water to enter the steel column 1. Before welding, the outer surface of the steel column 1 and the two ends of the steel column 1 are mostly wiped manually, and then welding is performed. As a result, when the steel column 1 is lifted by the lifting equipment, the steel column 1 changes from the initial horizontal state to the vertical state, and the residual water in the middle area of ​​the inner wall of the steel column 1 will slide down to the end position of the steel column 1 under the influence of gravity, that is, the water will slide to the area to be welded of the steel column 1, which will cause a large amount of steam to be generated during welding, resulting in pores in the weld, reducing the density and mechanical properties of the weld, thereby affecting the overall quality of welding;

[0051] To solve the above problem, when the upper steel column 1 is lowered, the electromagnetic heating wires in all the elastic plates 403 are controlled to be energized, and the steel column 1 is limited by all the limit plates 404, so that the steel column 1 remains flush until the lower end of the steel column 1 moves to resist all the elastic plates 403. At this time, the electromagnetic heating wires in the elastic plates 403 are all located on the inner side of the steel column 1, so that the lower end of the steel column 1 is dried by the electromagnetic heating wires in the elastic plates 403, and the lower end of the steel column 1 is heated by the electromagnetic heating wires, so as to avoid moisture in the weld of the steel column 1, and at the same time, the weld of the steel column 1 can be preheated, so as to reduce the cooling rate of the weld and the surrounding area, avoid the formation of hardened structure and reduce welding stress and deformation.

[0052] In order to speed up the construction progress, when welding work is carried out on a drizzling day, the upper end opening of the upper steel column 1 is blocked in advance by a plug block to prevent rainwater from flowing into the inner side of the steel column 1, and the four water retaining strips 2031 are each loaded on a limit block 203, so that the four water retaining strips 2031 are each against an outer surface of the steel column 1, so that the water flowing to the outer surface of the steel column 1 is intercepted and diverted by the four water retaining strips 2031, thereby preventing rainwater from sliding down to the welding area of ​​the steel column 1, and at the same time, all parts below the limit ring 402 are shielded by four guide plates 401, and The flow plate 401 guides the rainwater and receives the rainwater through the chamber formed by the clamp II 307, the guide plate 401 and the limit ring 402, so that the welding operation can continue. When the electric slider II 308 rotates, the electric slider II 308 drives the fixed block 309 to rotate, and the fixed block 309 drives the guide tube 407 to rotate. The guide tube 407 drives the ring 406 to rotate along the limit ring 402, so that the rainwater in the chamber formed by the clamp II 307, the guide plate 401 and the limit ring 402 can flow out quickly to avoid rainwater accumulation.

[0053] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the claims appended hereto.

Claims

1. A welding auxiliary positioning device for steel structure construction, characterized in that: The invention comprises a positioning mechanism; at least four groups of positioning mechanisms are provided, and the steel column (1) is limited by the cooperation of all the positioning mechanisms; the invention also comprises a clamp I (205), a plug (206), an elastic member I (207), an electric slider I (301), a bracket (302), an electric actuator I (303), a sliding frame (304), a welding gun (305) and a steering welding mechanism; each group of positioning mechanisms is detachably connected to a clamp I (205); each group of positioning mechanisms is connected to a plug (206); each group of positioning mechanisms is connected to at least two elastic members I (207); the clamp I (20 5) at least two slide grooves are formed on the upper surface, each of which is slidably connected to an electric slider I (301); each electric slider I (301) is fixedly connected to a bracket (302); each bracket (302) is fixedly connected to an electric actuator I (303); the telescopic portion of each electric actuator I (303) is fixedly connected to a sliding frame (304); each sliding frame (304) is slidably connected to a bracket (302); each sliding frame (304) is mounted with a welding gun (305); the positioning mechanism is detachably connected to a steering welding mechanism for assisting welding of two steel columns (1); The steering welding mechanism comprises a cross (306), a clamp II (307), an electric slider II (308), a fixed block (309), an electric actuator II (310) and a baffle (311); a cross (306) is detachably connected to the upper end of each fixed plate (201); a clamp II (307) is detachably connected to all crosses (306); at least two electric sliders II (308) are slidably connected to the clamp II (307); each electric slider II (308) is fixedly connected to a fixed block (309); an electric actuator II (310) is fixedly connected to the lower part of each fixed block (309), and the electric actuator II (310) is an electric push rod; a baffle (311) is fixedly connected to the telescopic part of each electric actuator II (310), and a through groove for the movement of a welding gun (305) is opened at the lower part of the baffle (311).

2. A welding auxiliary positioning device for steel structure construction according to claim 1, characterized in that: Each set of positioning mechanisms comprises a fixing plate (201), bolts (202), a limiting block (203) and a top block (204); the upper portion of the fixing plate (201) is connected to at least two bolts (202); each bolt (202) is connected to a limiting block (203) via a ball head; the lower portion of the fixing plate (201) is fixedly connected to at least two top blocks (204), and each top block (204) is provided with a magnet therein.

3. A welding auxiliary positioning device for steel structure construction according to claim 1, characterized in that: An upper portion of a side of the limiting block (203) away from the bolt (202) is cut into an inclined surface.

4. A welding auxiliary positioning device for steel structure construction according to claim 1, characterized in that: The baffle (311) is made of a light-shielding material.

5. A welding auxiliary positioning device for steel structure construction according to any one of claims 1 to 4, characterized in that: It also includes a fixing plate (31101); the fixing plate (31101) is fixedly connected in the through groove at the lower part of the baffle (311), and a round hole for placing the welding gun (305) is opened on the fixing plate (31101).

6. A welding auxiliary positioning device for steel structure construction according to claim 5, characterized in that: It also includes a bent pipe (312) and an air pipe (313); the upper portion of the baffle (311) is fixedly connected to the bent pipe (312); the lower portion of the bent pipe (312) is connected to at least two air pipes (313); all the air pipes (313) are fixedly connected to the baffle (311), and the lower ends of all the air pipes (313) are located in the through groove at the lower portion of the baffle (311).

7. A welding auxiliary positioning device for steel structure construction according to claim 6, characterized in that: The invention also comprises a waterproof system; the waterproof system is connected to the clamp II (307); the waterproof system comprises a water retaining strip (2031), a guide plate (401), a limit ring (402), an elastic plate (403), a limit plate (404), an elastic member II (405), a ring (406) and a guide pipe (407); each limit block (203) located at the top is detachably connected to a water retaining strip (2031), and the water retaining strip (2031) is arranged in an inclined shape; at least four guide plates (401) are fixedly connected to the upper surface of the clamp II (307) at equal intervals in an annular manner; the limit ring (402) is fixedly connected to the upper surface of the clamp II (307), and the limit ring (402) is positioned at the upper surface of the clamp II (307). A plurality of water guide holes are formed on the limit ring (402) on the outside of all guide plates (401); an elastic plate (403) is fixedly connected to each cross (306), and an electromagnetic heating wire is arranged inside each elastic plate (403); a limit plate (404) is slidably connected to the upper part of each cross (306), and an elastic member II (405) is fixedly connected between each limit plate (404) and the corresponding cross (306); a circular ring (406) is slidably connected to the lower part of the outer side of the limit ring (402); at least two guide tubes (407) are connected to the circular ring (406); and each guide tube (407) is fixedly connected to a fixing block (309).

8. A welding auxiliary positioning device for steel structure construction according to claim 7, characterized in that: The outer surface of the guide plate (401) is coated with a hydrophobic coating.

9. A welding auxiliary positioning device for steel structure construction according to claim 7, characterized in that: One end of the elastic plate (403) away from the cross (306) is configured to be wavy.

Images