Positioning type steel beam rapid welding device and method thereof

Abstract

The positioning type steel beam rapid welding device specifically comprises a base and a turnover mechanism arranged at the top of the base, the turnover mechanism comprises a turnover platform, a butt joint type multidirectional clamping mechanism is installed on the turnover platform, and the butt joint type multidirectional clamping mechanism comprises two sets of moving plates slidably connected to the turnover platform; a plurality of pushing clamping plates are arranged on the opposite sides of the moving plate; according to the butt-joint type multi-direction clamping mechanism, the butt-joint type multi-direction clamping mechanism is used for conducting multi-direction positioning clamping treatment on the two sets of steel beams, meanwhile, the two sets of steel beams are synchronously carried to move relatively, so that automatic abutting type positioning butt joint is achieved, and the problem that due to the fact that the distance between the ends of the two sets of steel beams is too large, clamping needs to be conducted again, and the machining efficiency is affected is solved; and multi-angle comprehensive rapid welding treatment is achieved for the steel beam, and the problem that the overall welding efficiency of the steel beam is reduced due to repeated clamping is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steel beam welding, and in particular to a positioning type steel beam rapid welding device and a method thereof. Background Art

[0002] The welding of building steel beams is a highly technical job with extremely strict requirements on construction quality. It plays a vital role in steel structure engineering. It requires connecting two or more steel components through local heating or pressurization to form a continuous and solid overall structure.

[0003] For example, a construction steel beam welding machine with publication number CN118180716A is easy to position. Before welding the steel beam, the first-level clamping of the steel beam is achieved by moving the storage table in combination with the clamping frame, and the linkage limit frame is turned to drive the straight rod to turn and press down to the top of the steel beam to complete the second-level clamping; although it can improve the clamping and positioning effect of the two groups of steel beams, the linkage clamping method has a single function and cannot simultaneously achieve the butt-jointing treatment of the rear end of the two groups of steel beams. After the two groups of steel beams are fixed, it is easy to have the problem that the distance between the ends is too large and it is difficult to weld, and re-clamping is required to affect the welding efficiency;

[0004] In addition, the moving resistance contact rod of the storage table is used to link the straight rod to the flipping and pressing processing, so that when clamping steel beams of different widths, the flipping angle of the limit frame will be different, so that there is point contact between the straight rod and the steel beam, further reducing the problem of the secondary clamping stability effect. Summary of the invention

[0005] The object of the present invention is to provide a positioning type steel beam rapid welding device and method thereof to solve the above-mentioned technical defects.

[0006] The object of the present invention can be achieved by the following technical scheme: a positioning type steel beam rapid welding device, comprising a base, and a turning mechanism arranged on the top of the base, the turning mechanism comprising a turning platform, a docking type multi-directional clamping mechanism is installed on the turning platform, the docking type multi-directional clamping mechanism comprises two sets of moving plates slidably connected to the turning platform, and a plurality of pushing clamping plates are arranged on opposite sides of the moving plates;

[0007] The pusher plate is rotatably connected to two sets of parallel connecting rods, the free ends of the connecting rods are rotatably connected to a mounting seat fixedly connected to a movable plate, a movable plate is provided on the top of the pusher plate, a screw is threadedly connected to the movable plate, and the bottom end of the screw is rotatably connected to a pressure plate.

[0008] Preferably, the pushing clamp is fixedly connected to a vertical plate that slides with the movable plate, the top of the pressing plate is fixedly connected to a limiting rod that slides with the movable plate, and the bottom of the pressing plate is fixedly connected to an elastic pad, and a plurality of auxiliary rollers are rotatably installed on the top of the flip platform.

[0009] Preferably, a linkage rod is fixedly connected to the movable plate, an I-shaped block slidably connected to the linkage rod is fixedly connected to the movable plate via a spring, and an I-shaped guide groove is obliquely opened on the movable plate for sliding with the corresponding I-shaped block.

[0010] Preferably, a gear 1 is rotatably installed on the flipping platform, a moving block that slides with the flipping platform is fixedly connected to the bottom of the moving plate, and a toothed plate that meshes with gear 1 is fixedly connected to the moving block, and a clamping motor that drives gear 1 to rotate is installed on the flipping platform by bolts.

[0011] Preferably, fixing seats are symmetrically fixedly connected to both sides of the top of the base, and an arc-shaped flip groove is opened on the top of the fixing seat, and an arc-shaped flip seat fixedly connected to the corresponding flip platform is slidably installed in the arc-shaped flip groove.

[0012] Preferably, an outer gear ring is fixedly connected to the annular outer wall of the arc-shaped flip seat, a gear 2 meshing with the outer gear ring is rotatably installed on the top of one side of the fixed seat, a rotating rod is fixedly connected between the gears 2, and a flip motor that drives the corresponding gear 2 to rotate is installed on one side of the fixed seat by bolts.

[0013] Preferably, a moving frame with an L-shaped structure is arranged between the upper parts of the two groups of the fixing seats, an electric push rod is installed on the moving frame, and a welding gun is installed at the end of the piston rod of the electric push rod.

[0014] Preferably, an electric slide 1 is fixedly installed on the top of the base, the mobile frame is installed on the slide seat of the electric slide 1, an electric slide 2 is fixedly installed on the bottom of the transverse section of the mobile frame, and the electric push rod is installed on the slide seat of the electric slide 2.

[0015] The present invention also proposes a positioning steel beam rapid welding method, which includes the following contents: a butt-jointed positioning clamping process of the steel beam, an adjustable linkage auxiliary pressing process and a flip-over multi-angle welding operation.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The present invention promotes the contact between the push plate and the steel beam through the relative movement of two sets of movable plates, and combines the elastic resistance of the spring to first assist the centering of the steel beam, and then uses the inclined connecting rod between the movable plate and the push plate to force the push plate to clamp and carry the steel beam to move, and cooperates with the auxiliary roller on the turning platform to cause the two sets of steel beams to move relative to each other, so as to achieve automatic contact positioning and docking during the clamping process, thereby avoiding the problem of re-clamping due to the large distance between the ends of the two sets of steel beams affecting the processing efficiency;

[0018] In addition, by using the push clamp to clamp the steel beam, and with the guidance of the I-shaped guide groove on the I-shaped block, the movable plate and the pressure plate are pushed down to press the top of the steel beam, which further strengthens the clamping and fixing effect and eliminates the problem of the welding end warping caused by the excessive length of the steel beam, so as to assist the accuracy of automatic docking and improve the welding quality; and by adjusting the initial height of the pressure plate by rotating the screw, the multi-directional clamping and precise docking welding effect of steel beams of different sizes can be achieved;

[0019] (2) In the present invention, the flip motor is first combined with the rotating rod, gear 2 and the outer gear ring to cause the two groups of arc-shaped flip seats to carry the corresponding flip platforms for synchronous flipping processing, thereby facilitating the adjustment of the welding angle. Afterwards, the electric slide and the electric push rod are coordinated to perform comprehensive and rapid multi-angle welding processing on the two groups of steel beams, thereby avoiding the problem of repeated clamping that reduces the overall welding efficiency of the steel beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings;

[0021] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0023] Figure 3 It is a structural schematic diagram of the docking type multi-directional clamping mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the disassembly of the movable plate and the material pushing clamping plate of the present invention;

[0025] Figure 5 It is a schematic diagram of the cooperation between the push clamping plate and the pressing plate of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the movable plate and the material pushing clamping plate of the present invention in the initial position;

[0027] Figure 7 It is a structural schematic diagram of the turning mechanism of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the turning platform of the present invention;

[0029] Fig. 9 It is a schematic diagram of the installation of the arc-shaped flip seat of the present invention.

[0030] Legend:

[0031] 1. Base; 11. Mobile frame; 12. Electric push rod; 13. Welding gun; 14. Electric slide 1; 15. Electric slide 2;

[0032] 2. Turning mechanism; 21. Turning platform; 22. Auxiliary roller; 23. Gear 1; 24. Clamping motor; 25. Fixed seat; 26. Arc-shaped turning seat; 27. External gear ring; 28. Gear 2; 29. ​​Turning rod; 210. Turning motor;

[0033] 3. Docking type multi-directional clamping mechanism; 31. Moving plate; 32. Pushing clamping plate; 33. Connecting rod; 34. Mounting seat; 35. Movable plate; 36. Screw; 37. Pressing plate; 38. Vertical plate; 39. Linking rod; 310. Spring; 311. I-shaped block; 312. I-shaped guide groove; 313. Tooth plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1-Figure 7 As shown, the clamping method in the prior art has a single functionality and cannot simultaneously achieve the butt-jointing processing of the rear ends of the two sets of steel beams, which is prone to the need for re-clamping that affects the welding efficiency, and is difficult to achieve a stable secondary clamping effect on the tops of steel beams of different widths. The following solution can be used to solve the problem;

[0036] In this embodiment, a positioning steel beam rapid welding device comprises a base 1 and a turning mechanism 2 arranged on the top of the base 1. The turning mechanism 2 comprises a turning platform 21 for placing the steel beam. A docking multi-directional clamping mechanism 3 is installed on the turning platform 21. The docking multi-directional clamping mechanism 3 comprises two sets of moving plates 31 slidably connected to the turning platform 21, and a plurality of pushing clamping plates 32 are arranged on opposite sides of the moving plates 31. The pushing clamping plates 32 are driven to contact the steel beam placed on the turning platform 21 through relative movement of the moving plates 31 to complete the centering positioning and placement of the steel beam.

[0037] The push clamping plate 32 is rotatably connected to two sets of parallel connecting rods 33, and the free ends of the connecting rods 33 are rotatably connected to the mounting base 34 fixedly connected to the movable plate 31. The push clamping plate 32, the movable plate 31 and the connecting rod 33 form a four-link structure, so that after the push clamping plate 32 contacts and limits the steel beam, the push clamping plate 32 that fits the steel beam is moved closer to the movable frame 11 through the continuous movement of the movable plate 31, so that the two sets of steel beams move relative to each other, so as to ensure the automatic resistance and docking effect of the welding front ends of the two sets of steel beams;

[0038] Before the push plate 32 contacts the steel beam, there is an obtuse angle between the two sets of connecting rods 33 and the push plate 32 and in the forward direction of the push plate 32, so as to realize the movement of the push plate 32 carrying the steel beam. The mounting seat 34 is provided with a mounting groove for the free end of the connecting rod 33 to be rotatably connected, and one side of the mounting groove is set as an inclined surface to avoid the reset of the connecting rod 33 and the push plate 32 to a right angle state, and it is not easy to cause the push plate 32 to move in multiple directions later.

[0039] A movable plate 35 is provided on the top of the pushing clamp 32, and a screw rod 36 is threadedly connected to the movable plate 35, and the bottom end of the screw rod 36 is rotatably connected to a pressure plate 37. The movable plate 35 carries the pressure plate 37 to move downward, and performs a secondary clamping and fixing treatment on the top of the steel beam. A torsion wheel is fixedly connected to the top of the screw rod 36, and the screw rod 36 is driven to rotate by rotating the torsion wheel. The screw 36 adjusts the initial height of the pressure plate 37, thereby completing the multi-directional clamping and fixing of steel beams of different thicknesses that are automatically connected.

[0040] A vertical plate 38 sliding with the movable plate 35 is fixedly connected to the material pushing clamping plate 32, and the vertical plate 38 is used for the vertical limit sliding of the movable plate 35. A limit rod sliding with the movable plate 35 is fixedly connected to the top of the pressing plate 37, and is used to rotate the screw rod 36 to prevent the pressing plate 37 from following the rotation and increase the connection stability between the pressing plate 37 and the movable plate 35.

[0041] In addition, an elastic pad is fixedly connected to the bottom of the pressure plate 37 to avoid rigid contact between the pressure plate 37 and the steel beam, so as to ensure the service life of the screw 36, the tooth plate 313, the gear 23 and the clamping motor 24. A plurality of auxiliary rollers 22 are rotatably installed on the top of the flipping platform 21. The auxiliary rollers 22 are used to replace the flipping platform 21 to contact the steel beam, so as to convert the surface contact into line contact. On the one hand, when the pushing splint 32 initially contacts the steel beam, it is easy to push the steel beam to move and realize the centering effect. On the other hand, when the pushing splint 32 limits the contact with the steel beam, it is easy to carry the steel beam to move, so as to realize the automatic contact and docking of the front ends of the two sets of steel beams.

[0042] The movable plate 35 is fixedly connected with a linkage rod 39, and an I-shaped block 311 slidably connected with the linkage rod 39 is fixedly connected with the movable plate 35 through a spring 310. The movable plate 31 is obliquely provided with an I-shaped guide groove 312 that slides with the corresponding I-shaped block 311;

[0043] The I-shaped block 311 is installed on the movable plate 31 and is slidably arranged with the linkage rod 39, so that when the material pushing clamping plate 32 is not in contact with the steel beam, under the elastic force of the spring 310, the material pushing clamping plate 32 is carried away from the movable plate 31 by the vertical plate 38, so that the material pushing clamping plate 32 moves with the steel beam after contacting the steel beam. With the help of the movement of the steel beam held by the material pushing clamping plate 32, the vertical plate 38 moves synchronously with the linkage rod 39 through the movable plate 35;

[0044] With the help of the inclined I-shaped guide groove 312 to guide the I-shaped block 311, the movable plate 35 carries the pressure plate 37 to descend and press down the top of the steel beam, further strengthening the clamping and fixing effect. On the one hand, it eliminates the problem of the welding end warping caused by the excessive length of the steel beam, and on the other hand, it assists the accuracy of automatic docking and improves the welding quality. When the ends of the two groups of steel beams are docked and the pressure plate 37 is in contact with the steel beams, the elastic force of the spring 310 promotes the contact between the pushing clamp 32 and the steel beam, causing relative sliding between the pushing clamp 32 and the steel beam, thereby achieving the downward pressing and squeezing effect of the pressure plate 37 on the steel beam.

[0045] A gear 23 is rotatably mounted on the flip platform 21, a moving block that slides with the flip platform 21 is fixedly connected to the bottom of the moving plate 31, and a toothed plate 313 that meshes with the gear 23 is fixedly connected to the moving block, and a clearance hole for the free end of the corresponding toothed plate 313 to pass through is opened on the moving block to avoid affecting the small distance adjustment between the two groups of moving plates 31, and the smooth side of the toothed plate 313 is in sliding contact with the flip platform 21 to increase the service life of the toothed plate 313;

[0046] A clamping motor 24 for driving a gear 23 to rotate is installed on the flip platform 21 by bolts. The clamping motor 24 drives the gear 23 to rotate. The gear 23 drives the two groups of movable plates 31 to move relative to each other through the meshing toothed plate 313, so that the pushing clamping plate 32 on the movable plate 31 contacts the steel beam. Combined with the elastic resistance of the spring 310 and the linear contact between the auxiliary roller 22 and the steel beam, the two groups of steel beams are assisted in centering and positioning.

[0047] An L-shaped mobile frame 11 is arranged between the two sets of fixed seats 25, on which an electric push rod 12 is installed, and a welding gun 13 is installed at the end of the piston rod of the electric push rod 12. The welding gun 13 is driven to move up and down by the electric push rod 12, which, on the one hand, avoids obstacles to the placement and removal of steel beams before and after welding, and on the other hand, facilitates the welding of steel beams of different thicknesses.

[0048] An electric slide 14 is fixedly installed on the top of the base 1, and the mobile frame 11 is installed on the slide seat of the electric slide 14. The mobile frame 11 is driven to move by the electric slide 14, and the welding gun 13 is adjusted to be placed in the welding position after the ends of the two groups of steel beams are connected, so as to avoid the problem of reducing the welding efficiency by re-clamping the steel beams. An electric slide 2 15 is fixedly installed on the bottom of the transverse section of the mobile frame 11, and the electric push rod 12 is installed on the slide seat of the electric slide 2 15. The electric push rod 12 is driven to move by the electric slide 2 15 to realize the welding processing of linear welds.

[0049] Example 2: Please refer to Figure 1 , Figure 2 and Figure 7-Figure 9 As shown, when two sets of steel beams are subjected to comprehensive multi-angle welding, the problem of repeated clamping and reduced overall welding efficiency of the steel beams can be solved by the following solution;

[0050] In this embodiment, the top of the base 1 is symmetrically fixedly connected with a fixing seat 25 on both sides, and the top of the fixing seat 25 is provided with an arc-shaped turning groove, and an arc-shaped turning seat 26 fixedly connected to the corresponding turning platform 21 is slidably installed in the arc-shaped turning groove. The arc-shaped turning groove and the arc-shaped turning seat 26 provided on the fixing seat 25 are used to achieve the turning effect of the turning platform 21, thereby driving the connected steel beam to rotate;

[0051] By combining the electric slide 15 and the electric push rod 12, the two sets of steel beams are subjected to comprehensive and rapid welding at multiple angles. The cross-sections of the arc-shaped flip groove and the arc-shaped flip seat 26 are both larger than half of the circular structure, so that when the arc-shaped flip seat 26 carries the flip platform 21 to perform a 180° flip, the problem of separation of the arc-shaped flip groove and the arc-shaped flip seat 26 is avoided.

[0052] An outer gear ring 27 is fixedly connected to the annular outer wall of the arc-shaped flip seat 26, and a gear 28 meshing with the outer gear ring 27 is rotatably installed on the top of one side of the fixed seat 25. The meshing outer gear ring 27 is driven to rotate by the rotation of the gear 28, thereby achieving the effect of flipping the arc-shaped flip seat 26. A rotating rod 29 is fixedly connected between the gears 28 to promote the synchronous flipping of the two groups of arc-shaped flip seats 26.

[0053] A flip motor 210 driving the corresponding gear 2 28 to rotate is installed on one side of the fixed seat 25 by bolts, and the electric slide 14 carries the moving frame 11 to move horizontally, the electric slide 2 15 carries the electric push rod 12 to move horizontally, and the electric push rod 12 carries the welding gun 13 to move downward, so that the welding point of the welding gun 13 is located between the welding ends of the two sets of steel beams;

[0054] The flip motor 210 combined with the rotating rod 29 causes the two sets of gears 28 to rotate synchronously in the same direction. Combined with the outer gear ring 27 meshing with the gear 28, the arc-shaped flip seat 26 carries the flip platform 21 to rotate, and then the electric slide 15 and the electric push rod 12 are used to perform comprehensive and rapid welding of the two sets of steel beams at multiple angles.

[0055] Example 3: Please refer to Figure 1-Figure 9 As shown, the present invention also proposes a positioning steel beam rapid welding method, comprising the following steps:

[0056] Step 1: The butt-jointed positioning and clamping process of the steel beams is as follows: two groups of steel beams to be welded are placed on a horizontal turning platform 21, and the clamping motor 24 drives the gear 1 23 to rotate. The gear 1 23 drives the two groups of moving plates 31 to move relative to each other through the meshing toothed plate 313, so that the pushing clamping plate 32 on the moving plate 31 contacts the steel beams, and the elastic resistance of the spring 310 and the linear contact surface between the auxiliary roller 22 and the steel beam are combined to assist the centering positioning of the two groups of steel beams;

[0057] Through the continuous movement of the two sets of moving plates 31, combined with the two sets of inclined connecting rods 33 between the moving plates 31 and the material pushing clamping plates 32, the material pushing clamping plates 32 that fit the steel beams are moved closer to the moving frame 11, and the auxiliary rollers 22 on the turning platform 21 are coordinated to cause the two sets of steel beams to move relative to each other, so as to ensure the automatic resistance and docking effect of the welding front ends of the two sets of steel beams;

[0058] Step 2: Adjustable linkage auxiliary material pressing process, the specific content is as follows: with the help of the movement of the push clamping plate 32 after it fits the steel beam, combined with the vertical plate 38 carrying the movable plate 35 to move in the same direction, the inclined I-shaped guide groove 312 guides the I-shaped block 311, so that the linkage rod 39 carries the movable plate 35 to move downward synchronously, so that the elastic pad at the bottom of the pressing plate 37 contacts the top of the steel beam to clamp and fix it in multiple directions, and the screw rod 36 is rotated to cooperate with the limit rod to adjust the initial height of the pressing plate 37, thereby completing the multi-directional clamping and fixing of steel beams of different thicknesses for automatic docking;

[0059] Step three: flip-type multi-angle welding operation, the specific contents are as follows: the electric slide 14 carries the mobile frame 11 to move horizontally, the electric slide 2 15 carries the electric push rod 12 to move horizontally, and the electric push rod 12 carries the welding gun 13 to move downward, so that the welding point of the welding gun 13 is located between the welding ends of the two groups of steel beams to complete the one-side welding between the two groups of steel beams, and then the flip motor 210 is combined with the rotating rod 29 to cause the two groups of gears 2 28 to rotate synchronously in the same direction, and combined with the outer gear ring 27 meshing with the gear 28, the arc-shaped flip seat 26 carries the flip platform 21 to rotate, and then the electric slide 2 15 and the electric push rod 12 are used to perform comprehensive and rapid multi-angle welding on the two groups of steel beams.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning type steel beam rapid welding device, comprising a base (1), and a turning mechanism (2) arranged on the top of the base (1), characterized in that: The turning mechanism (2) comprises a turning platform (21), a butt-jointed multi-directional clamping mechanism (3) is installed on the turning platform (21), the butt-jointed multi-directional clamping mechanism (3) comprises two sets of moving plates (31) slidably connected to the turning platform (21), and a plurality of material pushing clamping plates (32) are arranged on opposite sides of the moving plates (31); The pusher clamping plate (32) is rotatably connected to two sets of parallel connecting rods (33), and the free ends of the connecting rods (33) are rotatably connected to a mounting seat (34) fixedly connected to the movable plate (31). A movable plate (35) is arranged on the top of the pusher clamping plate (32), and a screw rod (36) is threadedly connected to the movable plate (35), and the bottom end of the screw rod (36) is rotatably connected to a pressure plate (37).

2. A positioning steel beam rapid welding device according to claim 1, characterized in that: The push clamp (32) is fixedly connected to a vertical plate (38) that slides with the movable plate (35), the top of the pressure plate (37) is fixedly connected to a limit rod that slides with the movable plate (35), and the bottom of the pressure plate (37) is fixedly connected to an elastic pad, and a plurality of auxiliary rollers (22) are rotatably installed on the top of the turning platform (21).

3. A positioning steel beam rapid welding device according to claim 2, characterized in that: The movable plate (35) is fixedly connected to a linkage rod (39); an I-shaped block (311) slidably connected to the linkage rod (39) is fixedly connected to the movable plate (35) via a spring (310); and an I-shaped guide groove (312) is obliquely provided on the movable plate (31) for sliding with the corresponding I-shaped block (311).

4. The positioning steel beam rapid welding device according to claim 1 is characterized in that: A gear 1 (23) is rotatably mounted on the flip platform (21), a moving block that slides with the flip platform (21) is fixedly connected to the bottom of the moving plate (31), and a toothed plate (313) that meshes with the gear 1 (23) is fixedly connected to the moving block, and a clamping motor (24) that drives the gear 1 (23) to rotate is mounted on the flip platform (21) via bolts.

5. The positioning steel beam rapid welding device according to claim 1 is characterized in that: The top of the base (1) is symmetrically fixedly connected with a fixing seat (25) on both sides, and the top of the fixing seat (25) is provided with an arc-shaped turning groove, in which an arc-shaped turning seat (26) fixedly connected to the corresponding turning platform (21) is slidably installed.

6. A positioning steel beam rapid welding device according to claim 5, characterized in that: An outer gear ring (27) is fixedly connected to the annular outer wall of the arc-shaped flip seat (26); a second gear (28) meshing with the outer gear ring (27) is rotatably mounted on the top of one side of the fixed seat (25); a rotating rod (29) is fixedly connected between the second gears (28); and a flip motor (210) for driving the corresponding second gear (28) to rotate is mounted on one side of the fixed seat (25) by bolts.

7. The positioning steel beam rapid welding device according to claim 5 is characterized in that: A mobile frame (11) with an L-shaped structure is arranged between the two groups of fixed seats (25), an electric push rod (12) is installed on the mobile frame (11), and a welding gun (13) is installed at the end of the piston rod of the electric push rod (12).

8. The positioning steel beam rapid welding device according to claim 7 is characterized in that: An electric slide 1 (14) is fixedly mounted on the top of the base (1), the movable frame (11) is mounted on the slide seat of the electric slide 1 (14), an electric slide 2 (15) is fixedly mounted on the bottom of the transverse section of the movable frame (11), and the electric push rod (12) is mounted on the slide seat of the electric slide 2 (15).

9. A method for rapid welding of a positioning steel beam, according to a rapid welding device for a positioning steel beam according to any one of claims 1 to 8, characterized in that: It includes the following contents: butt-jointed positioning and clamping process of steel beams, adjustable linkage auxiliary pressing processing and flip-over multi-angle welding operation.

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