Device for automatically controlling welding deformation of installed and welded T-shaped steel

Abstract

The utility model provides a device for automatically controlling welding deformation of installed and welded T-shaped steel and belongs to the technical field of steel structure welding. The device comprises an operation platform and a movable welding mechanism. A driving rail wheel, a flange pressing mechanism and a web clamping mechanism are arranged on the operating platform in the length direction; the flange pressing mechanism comprises a first horizontal hydraulic rod, a first vertical lifting rod and a pressing rail wheel; the web clamping mechanism comprises a second vertical lifting rod, a second horizontal hydraulic rod and a clamping rail wheel; the movable welding mechanism comprises a movable frame, and the movable frame is provided with a web pressing mechanism and a double-head welding gun. According to the utility model, the automation of the welding process is realized, and the production efficiency is improved; by arranging the pressing rail wheels, the clamping rail wheels and the web jacking mechanism, the deformation problem in the welding process of the installed and welded T-shaped steel and the reverse deformation control problem after welding are solved; the whole structure is simple, operation is convenient, and the device can be suitable for batch efficient welding of the installed and welded T-shaped steel of different specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structure welding, in particular to a device for automatically controlling welding deformation of group-welded T-shaped steel. Background Art

[0002] With the rapid development of the steel structure construction industry, more and more commercial, industrial and civil buildings are using steel structure buildings. Its structural system has the advantages of light weight, factory manufacturing, quick installation, short construction period, good seismic performance, less environmental pollution, etc. Among them, the main structure often uses welded T-shaped steel as important nodes such as steel columns, steel beams, and supports. Welded T-shaped steel is welded from two long steel plates and is an economical cross-section steel. However, due to the characteristics of the welding process itself, there are many welding deformation problems in welded T-shaped steel. In the existing technology, the welding deformation of welded T-shaped steel needs to be manually corrected by repeated annealing, which has a low degree of mechanization, low efficiency, high difficulty in operation, great damage to the parent material, and high safety risks. At the same time, the specifications and types of welded T-shaped steel are complex and diverse, and an automated, intelligent, and standardized device for controlling the welding deformation of welded T-shaped steel is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a device for automatically controlling the welding deformation of group-welded T-shaped steels, which realizes the automation of welding and deformation control of group-welded T-shaped steels and improves welding efficiency and welding quality.

[0004] The technical solution adopted by the utility model is: a device for automatically controlling the welding deformation of group-welded T-shaped steel, comprising an operating platform and a mobile welding mechanism;

[0005] The operating platform is provided with a plurality of driving rail wheels, a plurality of relatively arranged flange clamping mechanisms and a plurality of relatively arranged web clamping mechanisms along the length direction; the driving rail wheels are used to support and drive the flange to move; the flange clamping mechanisms are movably provided with clamping rail wheels, which are used to roll with the flange and clamp the flange; the web clamping mechanisms are movably provided with clamping rail wheels, which are used to roll with the web and clamp the web;

[0006] The mobile welding mechanism includes a mobile frame, a web pressing mechanism for abutting the web is movably arranged in the middle of the mobile frame, and the web pressing mechanism is connected to a double-headed welding gun; the mobile frame can drive the web pressing mechanism and the double-headed welding gun to move along the length direction of the operating platform.

[0007] Furthermore, the flange clamping mechanism includes a first horizontal hydraulic rod, a first vertical lifting rod and the clamping rail wheel, one end of the horizontal hydraulic rod is perpendicular to the side wall of the operating platform, and the other end extends toward the middle of the operating platform and is connected to the first vertical lifting rod, and the first vertical lifting rod is connected to the wheel seat of the clamping rail wheel.

[0008] Furthermore, the web clamping mechanism includes a second vertical lifting rod, a second horizontal hydraulic rod and the clamping rail wheel, the second vertical lifting rod is arranged on the side wall; one end of the second horizontal hydraulic rod is vertically connected to the second vertical lifting rod, and the other end extends to the middle of the operating platform and is connected to the wheel seat of the clamping rail wheel.

[0009] Furthermore, a hydraulic lifting part is provided in the middle of the movable frame, and the web pressing mechanism is threadedly connected to the hydraulic lifting part through a screw rod.

[0010] Furthermore, the web pressing mechanism includes a connecting block connected to the screw rod and a clamping block arranged at the bottom of the connecting block; the clamping blocks are arranged relatively to each other and are provided with a rotating telescopic rod for clamping the top of the web; the double-head welding gun is arranged on the connecting block.

[0011] Furthermore, the driving rail wheel, the clamping rail wheel, the clamping rail wheel and the rotating telescopic rod are respectively driven by a driver, the driving rail wheel and the clamping rail wheel rotate in the same direction, and the clamping rail wheel and the rotating telescopic rod rotate in the same direction.

[0012] Furthermore, slide rails are provided on both sides of the operating platform in the length direction, and the movable frame is slidably connected to the slide rails and is driven to move by a servo motor.

[0013] Furthermore, the operating platform also includes hydraulic lifting legs.

[0014] Furthermore, the movable frame is also provided with a flux box, an electric box and welding wire for welding.

[0015] The advantages and positive effects of the utility model are:

[0016] 1. The device for automatically controlling the welding deformation of T-shaped steel is used to weld T-shaped steel to realize the automation of the welding process, saving a lot of manpower and equipment use, improving production efficiency, and having good safety performance and economic benefits;

[0017] 2. By pressing the flange with the clamping rail wheel, clamping the web with the clamping rail wheel, and fixing the top of the web with the web pressing mechanism, the flange and web are restricted from producing local convex deformation, wave deformation, triangle deformation and other deformations, solving the deformation problem of the T-beam during welding and the problem of reverse deformation control after welding, and improving the welding accuracy and welding quality;

[0018] 3. The overall structure is simple and easy to operate. It can be used for efficient batch welding of T-shaped steels of different specifications, which promotes the standardization of T-shaped steel welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0020] Figure 2 It is a front view of a specific embodiment of the utility model;

[0021] Figure 3 It is a partial schematic diagram of a specific embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a flange clamping mechanism of a specific embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of a web clamping mechanism of a specific embodiment of the utility model;

[0024] Figure 6 It is a structural schematic diagram of a web pressing mechanism of a specific embodiment of the utility model;

[0025] Figure 7 The utility model is a schematic diagram of the structure of a mobile welding mechanism of a specific embodiment.

[0026] In the figure:

[0027] 1. Operating platform 101, side wall 102, hydraulic lifting legs

[0028] 2. Driving rail wheel 3. Flange clamping mechanism 301. Clamping rail wheel

[0029] 302, wheel seat 303, first vertical lifting rod 304, first horizontal hydraulic rod

[0030] 4. Web clamping mechanism 401, clamping rail wheel 402, second horizontal hydraulic rod

[0031] 403, second vertical lifting rod 5, web pressing mechanism 501, connecting block

[0032] 502, clamping block 5021, rotating telescopic rod 6, slide rail

[0033] 7. Mobile welding mechanism 701, mobile frame 702, hydraulic lifting unit

[0034] 8. Electric box 9. Welding wire 10. Flux box

[0035] 11. Double-head welding gun 12. Wing plate 13. Web plate DETAILED DESCRIPTION

[0036] The embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0037] like Figure 1-Figure 5 As shown, the utility model proposes a device for automatically controlling the welding deformation of T-shaped steel, comprising an operating platform 1 and a mobile welding mechanism 7; the operating platform 1 is provided with a plurality of driving rail wheels 2, a plurality of relatively arranged flange clamping mechanisms 3 and a plurality of relatively arranged web clamping mechanisms 4 along the length direction; the driving rail wheel 2 is used to support and drive the T-shaped steel flange 12 to be welded to move; the flange clamping mechanism 3 is movably provided with a clamping rail wheel 301, which is used to roll and connect with the flange 12 and clamp the flange 12; the web clamping mechanism 4 is movably provided with a clamping rail wheel 401, which is used to roll and connect with the web 13 and clamp the web 13;

[0038] The mobile welding mechanism 7 includes a mobile frame 701, and a web pressing mechanism 5 for pressing against the web 13 is movably arranged in the middle of the mobile frame 701. The web pressing mechanism 5 is connected to a double-headed welding gun 11 and is used to weld the wing plate 12 and the web 13 to form a T-shaped steel. The mobile frame 701 can drive the web pressing mechanism 5 and the double-headed welding gun 11 to move along the length direction of the operating platform 1 to perform welding operations.

[0039] The T-shaped steel in the present application is composed of a flange 12 and a web 13 welded together, wherein the web 13 is vertically welded to the middle of the flange 12, and the flange 12 and the web 13 have the same length; when the device is in use, the flange 12 is placed on the upper part of the driving rail wheel 2, and the flange clamping mechanism 3 is arranged on the upper part of the flange 12. Specifically, the clamping rail wheels 301 of the flange clamping mechanism 3 respectively abut against the flanges on both sides of the width direction of the flange 12 to limit the movement of the flange 12 in the vertical direction; at the same time, the two sides of the web 13 are clamped by the web clamping mechanism 4 to limit its movement in the horizontal direction. Specifically, the clamping rail wheels 401 of the web clamping mechanism 4 abut against the middle part of the web 13; at the same time, the top of the web 13 is clamped by the web pressing mechanism 5 to limit the movement of the web 13 in the vertical direction.

[0040] The flange clamping mechanism 3 in the present application is movably arranged on the operating platform 1, and the length of the flange clamping mechanism 3 and the height of the clamping rail wheel 301 can be adjusted according to the thickness and width of the flange 12 to achieve the clamping effect on the flange 12; the web clamping mechanism 4 in the present application is movably arranged on the operating platform 1, and the length of the web clamping mechanism 4 and the height of the clamping rail wheel 401 can be adjusted according to the thickness and height of the web 13 to achieve the clamping effect on the web 13; by setting the flange clamping mechanism 3 and the web clamping mechanism 4, the flange 12 and the web 13 can be fixed to the operating platform 1 to prevent them from moving during the welding process; at the same time, the flange is pressed by the clamping rail wheel 301, and the web 13 is clamped by the clamping rail wheel 401 to prevent the flange 12 and the web 13 from being deformed during the welding process.

[0041] The web pressing mechanism 5 in the present application is movably arranged on the movable frame 701, and the height of the web pressing mechanism 5 can be adjusted according to the thickness and height of the web 13, so as to press against the top of the web 13 during welding to limit the movement and deformation of the web 13 in the vertical direction.

[0042] In a specific embodiment, the welding of the wing plate 12 and the web 13 is carried out in two steps. First, the mobile frame 701 is moved along the length direction of the operating platform 1, driving the web 13 pressing mechanism and the double-headed welding gun 11 to move along the length direction of the web 13 and the wing plate 12 to complete the preliminary spot welding; then the mobile frame 701 is stationary, and the driving rail wheel 2 drives the wing plate 12 and the web 13 to move synchronously to complete the full welding operation; the clamping rail wheel 301 and the clamping rail wheel 401 simultaneously play the role of limiting and assisting movement. The entire welding process is fully automated, which can prevent local convex deformation, wave deformation, triangle deformation and other deformations, improve welding accuracy, and achieve high-quality automated control of group welding T-shaped steel welding deformation.

[0043] In the present application, the double-head welding gun 11 can be used for synchronous welding or asynchronous welding. The welding operation can be intelligently controlled according to the thickness of the web 13 of the T-shaped steel to be welded. The double-head welding gun 11 is respectively equipped with an equipment data display screen, and the operator can grasp various data of the welding operation at any time; the specific structure of the double-head welding gun 11 is a common setting in the prior art and will not be repeated here.

[0044] In a preferred embodiment, Figure 4As shown, the flange clamping mechanism 3 includes a first horizontal hydraulic rod 304, a first vertical lifting rod 303 and a clamping rail wheel 301. One end of the first horizontal hydraulic rod 304 is vertically arranged on the side wall 101 of the operating platform, and the other end extends to the middle of the operating platform 1 and is connected to the first vertical lifting rod 303. The top of the first vertical lifting rod 303 is connected to the wheel seat 302 of the clamping rail wheel 301. The first horizontal hydraulic rod 304 can be extended and retracted to adjust the length of the flange clamping mechanism 3, driving the clamping rail wheel 301 to adjust its position along the width direction of the wing plate 12; at the same time, according to the different thicknesses of the wing plate 12, the length of the first vertical lifting rod 303 can be selectively adjusted, and then the lifting and lowering of the clamping rail wheel 301 can be adjusted to make its height able to clamp the wing plate 12, and finally achieve a good effect of controlling the deformation of the wing plate 12.

[0045] Furthermore, the clamping rail wheel 301 is fixed to the wheel seat 302 through a wheel axle, and the wheel axle is arranged along the width direction of the wing plate 12, so that the clamping rail wheel 301 can be rollingly connected with the wing plate 12, and the rotation of the clamping rail wheel 301 is coordinated with the movement of the wing plate 12 to reduce the friction between the clamping rail wheel 301 and the wing plate 12, thereby assisting the movement of the wing plate 12; each wheel seat 302 can be connected to multiple sets of wheel axles and multiple sets of clamping rail wheels 301 to achieve a better clamping effect.

[0046] In this embodiment, Figure 1 , Figure 4 As shown, the operating platform 1 includes two side walls 101 arranged along its length direction, and the two ends of the wheel axle of the driving rail wheel 2 are connected to the inner sides of the two side walls 101; the flange clamping mechanism 3 is also relatively arranged on the inner sides of the two side walls 101, specifically, the first horizontal hydraulic rod 304 is symmetrically arranged on the inner sides of the side walls 101 and extends in the horizontal direction, the first vertical lifting rod 303 extends in the vertical direction, and the first horizontal hydraulic rod 304 is connected to the bottom end of the first vertical lifting rod 303; the wheel seat 302 of the clamping rail wheel 301 is L-shaped as a whole and is connected to the top end of the first vertical lifting rod 303, so that the clamping rail wheel 301 can be rollingly connected with the wing plate 12; the flange clamping mechanism 3 is located above the driving rail wheel 2 as a whole, and can adjust the position of the clamping rail wheel 301 in the horizontal and vertical directions.

[0047] In a preferred embodiment, Figure 5 As shown, the web clamping mechanism 4 includes a second vertical lifting rod 403, a second horizontal hydraulic rod 402 and a clamping rail wheel 401. The second vertical lifting rod 403 is arranged on the side wall 101; one end of the second horizontal hydraulic rod 402 is vertically connected to the second vertical lifting rod 403, and the other end extends to the middle of the operating platform 1 and is connected to the wheel seat 302 of the clamping rail wheel 401.

[0048] Specifically, the second vertical lifting rod 403 of the web clamping mechanism 4 is relatively arranged at the upper part of the two side walls 101, and the second horizontal hydraulic rod 402 extends in the horizontal direction, one end of which is arranged at the top of the second vertical lifting rod 403, and the other end is connected to the clamping rail wheel 401. Through this design, the position of the clamping rail wheel 401 in the horizontal and vertical directions can be adjusted. At the same time, the relatively arranged web clamping mechanism 4 can realize the positioning of the web 13, so that the web 13 is always in the middle position of the operating platform 1, and is aligned with the web pressing mechanism 5 and the double-headed welding gun 11.

[0049] In this embodiment, the wheel seat 302 of the clamping rail wheel 401 is provided with an axle for installing the clamping rail wheel 401, and the axle of the clamping rail wheel 401 is arranged along the height direction of the web 13, so that the clamping rail wheel 401 can be rollingly connected with the web 13, and the rotation direction of the clamping rail wheel 401 is matched with the moving direction of the web 13 to reduce the friction between the clamping rail wheel 401 and the web 13, thereby assisting the movement of the web 13; each wheel seat 302 can be connected to multiple sets of axles and multiple sets of clamping rail wheels 401 to achieve a better clamping effect.

[0050] Furthermore, if Figure 2 , Figure 3 , Figure 6 As shown, a hydraulic lifting part 702 is provided in the middle of the mobile frame 701, and the web pressing mechanism 5 is threadedly connected to the hydraulic lifting part 702 through a screw rod. The hydraulic lifting part 702 can drive the web pressing mechanism 5 and the double-head welding machine to move in the vertical direction to achieve the compression of the web 13, and at the same time, the nozzle of the double-head welding gun 11 can be aligned with the intended welding part.

[0051] Furthermore, if Figure 6 As shown, the web pressing mechanism 5 includes a connecting block 501 connected to the screw rod and a clamping block 502 arranged at the bottom of the connecting block 501; the clamping block 502 is relatively arranged and is provided with a rotating telescopic rod 5021 for clamping the top of the web 13; the double-headed welding gun 11 is arranged on the connecting block 501, and the nozzles of the double-headed welding gun 11 are respectively located on both sides of the web 13, so that the web 13 and the wing plate 12 can be welded from both sides to ensure that the welding quality meets the requirements.

[0052] In this embodiment, the rotatable telescopic rod 5021 can be extended and retracted relative to the clamping block 502. When in use, by adjusting the length of the rotatable telescopic rod 5021, a sufficient gap is left between the two rotatable telescopic rods 5021, and the top of the web 13 extends into the gap. By adjusting the hydraulic lifting part 702, the web pressing mechanism 5 is lowered as a whole until the connecting block 501 is against the top of the web 13, and then the length of the rotatable telescopic rod 5021 is further adjusted to clamp the two sides of the top of the web 13, thereby realizing the function of further limiting the web 13; at the same time, the rotatable telescopic rod 5021 can rotate around its axis and be rollingly connected with the web 13. When the driving rail wheel 2 drives the wing plate 12 and the web 13 to move synchronously, it assists the movement of the web 13 together with the clamping rail wheel 401.

[0053] In order to further improve the stability of the web 13 and the wing plate 12 during movement, in a specific embodiment, the driving rail wheel 2, the clamping rail wheel 301, the clamping rail wheel 401 and the rotating telescopic rod 5021 are respectively driven by a driver, wherein the driving rail wheel 2 and the clamping rail wheel 301 rotate in the same direction, and the clamping rail wheel 401 and the rotating telescopic rod 5021 rotate in the same direction, and at the same time, the rotation speed of the driving rail wheel 2 is matched with the rotation speed of the clamping rail wheel 301, the clamping rail wheel 401 and the rotating telescopic rod 5021, so that the web 13 and the wing plate 12 can move synchronously and smoothly at a fixed speed.

[0054] Furthermore, slide rails 6 are provided on both sides of the length direction of the operating platform 1, and the movable frame 701 is slidably connected to the slide rails 6. The movable frame 701 is driven to move by a servo motor so that the movable frame 701 can move smoothly along the slide rails 6, thereby keeping the double-head welding gun 11 moving in a stable state, which is beneficial to ensuring the quality of the welding operation.

[0055] Furthermore, the operating platform 1 also includes a hydraulic lifting leg 102, through which the height of the operating platform 1 can be adjusted to be suitable for the assembly welding of T-steels of different specifications and sizes, and cooperate with the hydraulic lifting part 702 and the web pressing mechanism 5 to achieve a better deformation control effect.

[0056] Preferably, if Figure 7 As shown, the mobile frame 701 is also provided with a flux box 10, an electric box 8 and a welding wire 9 for welding. In a specific embodiment, the flux box 10 is arranged on the hydraulic lifting part 702 and is located above the double-headed welding gun 11, and the electric box 8 and the welding wire 9 are respectively arranged on the mounting platform at the top of the mobile frame 701, so as to facilitate connection with the double-headed welding gun 11.

[0057] The first horizontal hydraulic rod 304 and the second horizontal hydraulic rod 402 in the present application have a telescopic function, which can be driven by a hydraulic cylinder or by other structures and driving methods that can achieve the telescopic function, without any limitation here; the first vertical lifting rod 303 and the second vertical lifting rod 403 in the present application have a lifting function, which can be driven by hydraulics or by other structures and driving methods that can achieve the lifting function, without any limitation here; the specific structure of the rotating telescopic rod 5021 is a common structure in the prior art and will not be repeated here.

[0058] The utility model also proposes a construction method using the above-mentioned device for automatically controlling the welding deformation of T-shaped steel, comprising the following steps:

[0059] Assemble the operating platform 1, the driving rail wheel 2, the flange clamping mechanism 3 and the web clamping mechanism 4, lay the slide rails 6 and install the mobile frame 701; lay the slide rails 6 on both sides of the operating platform 1 to ensure that the slide rails 6 remain horizontal, then install the mobile frame 701 on the slide rails 6 to complete the assembly of the entire device, then check whether the installation positions of the above-mentioned components are accurate, debug the extension and lifting functions of the flange clamping mechanism 3 and the web clamping mechanism 4, and test the operation of the driving rail wheel 2, the clamping rail wheel 301 and the clamping rail wheel 401 to ensure that the three can work together.

[0060] Install the double-head welding gun 11, the flux box 10, the electric box 8 and the welding wire 9 on the mobile frame 701; debug the speed, stability and safety of the mobile frame 701;

[0061] Place the wing plate 12 in the middle of the driving rail wheel 2 of the operating platform 1, so that the center of the wing plate 12 is aligned with the center of the web pressing mechanism 5; adjust the flange clamping mechanism 3 to press the wing plate 12; place the web 13 on the upper part of the wing plate 12, so that the web 13 is placed vertically in the center of the wing plate 12; adjust the web clamping mechanism 4 to position and clamp the web 13; check the straightness and verticality of the wing plate 12 and the web 13;

[0062] Adjust the web pressing mechanism 5 to push against and clamp the web 13; adjust the angle of the double-headed welding gun 11 to align with the intended welding position; set the welding parameters of the double-headed welding gun 11;

[0063] The servo motor is operated to drive the moving frame 701 to move, and the double-head welding gun 11 is operated to perform spot welding; the welding quality is reviewed;

[0064] Preheat the intended welding parts to ensure that all parts are preheated evenly to prevent the wing plate 12 and the web plate 13 from expanding, causing deformation such as compression stress and plastic shrinkage; after preheating, observe the data on the equipment data display screen of the double-head welding gun 11 to ensure that the welding conditions are met;

[0065] The driving rail wheel 2, the clamping rail wheel 301, the clamping rail wheel 401 and the rotating telescopic rod 5021 are operated to drive the web 13 and the wing plate 12 to move synchronously; and the double-headed welding gun 11 is operated for full welding; when welding, the double-headed welding gun 11 starts welding from the top of the arc-starting plate. To avoid undercutting when welding at the same point on both sides of the web 13, the distance between the welding gun nozzles on both sides of the web 13 should be maintained at 400mm-500mm. The operator should pay attention to the data on the equipment data display screen at any time to ensure the normal operation of the double-headed welding gun 11.

[0066] After natural cooling, the flange clamping mechanism 3, the web clamping mechanism 4 and the web pressing mechanism 5 are reset, and after the welding quality is inspected to be qualified, the welded T-shaped steel is removed.

[0067] The advantages and positive effects of the utility model are:

[0068] 1. The device for automatically controlling the welding deformation of T-shaped steel is used to weld T-shaped steel to realize the automation of the welding process, saving a lot of manpower and equipment use, improving production efficiency, and having good safety performance and economic benefits;

[0069] 2. By pressing the flange with the clamping rail wheel, clamping the web with the clamping rail wheel, and fixing the top of the web with the web pressing mechanism, the flange and web are restricted from producing local convex deformation, wave deformation, triangle deformation and other deformations, solving the deformation problem of the T-beam during welding and the problem of reverse deformation control after welding, and improving the welding accuracy and welding quality;

[0070] 3. The overall structure is simple and easy to operate. It can be used for efficient batch welding of T-shaped steels of different specifications, which promotes the standardization of T-shaped steel welding.

[0071] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A device for automatically controlling the welding deformation of T-shaped steel, characterized in that: Including operating platform and mobile welding mechanism; The operating platform is provided with a plurality of driving rail wheels, a plurality of relatively arranged flange clamping mechanisms and a plurality of relatively arranged web clamping mechanisms along the length direction; the driving rail wheels are used to support and drive the flange to move; the flange clamping mechanisms are movably provided with clamping rail wheels, which are used to roll with the flange and clamp the flange; the web clamping mechanisms are movably provided with clamping rail wheels, which are used to roll with the web and clamp the web; The mobile welding mechanism includes a mobile frame, a web pressing mechanism for abutting the web is movably arranged in the middle of the mobile frame, and the web pressing mechanism is connected to a double-headed welding gun; the mobile frame can drive the web pressing mechanism and the double-headed welding gun to move along the length direction of the operating platform.

2. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 1 is characterized in that: The flange clamping mechanism includes a first horizontal hydraulic rod, a first vertical lifting rod and the clamping rail wheel, one end of the horizontal hydraulic rod is perpendicular to the side wall of the operating platform, and the other end extends to the middle of the operating platform and is connected to the first vertical lifting rod, and the first vertical lifting rod is connected to the wheel seat of the clamping rail wheel.

3. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 2 is characterized in that: The web clamping mechanism includes a second vertical lifting rod, a second horizontal hydraulic rod and the clamping rail wheel, wherein the second vertical lifting rod is arranged on the side wall; one end of the second horizontal hydraulic rod is vertically connected to the second vertical lifting rod, and the other end extends toward the middle of the operating platform and is connected to the wheel seat of the clamping rail wheel.

4. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 3 is characterized in that: A hydraulic lifting part is arranged in the middle of the movable frame, and the web pressing mechanism is threadedly connected with the hydraulic lifting part through a screw rod.

5. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 4 is characterized in that: The web pressing mechanism includes a connecting block connected to the screw rod and a clamping block arranged at the bottom of the connecting block; the clamping blocks are arranged relatively to each other and are provided with a rotating telescopic rod for clamping the top of the web; the double-headed welding gun is arranged on the connecting block.

6. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 5 is characterized in that: The driving rail wheel, the clamping rail wheel, the clamping rail wheel and the rotating telescopic rod are respectively driven by a driver; the driving rail wheel and the clamping rail wheel rotate in the same direction; and the clamping rail wheel and the rotating telescopic rod rotate in the same direction.

7. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 1 or 6, characterized in that: Slide rails are arranged on both sides of the operating platform in the length direction, and the movable frame is slidably connected to the slide rails and is driven to move by a servo motor.

8. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 7 is characterized in that: The operating platform also includes hydraulic lifting legs.

9. The device for automatically controlling welding deformation of T-shaped steel in group welding according to claim 1 is characterized in that: The mobile frame is also provided with a flux box, an electric box and welding wire for welding.

Images