H-shaped steel welding equipment for steel structure factory building

Abstract

The invention relates to the technical field of welding equipment for steel structure factory buildings, in particular to H-shaped steel welding equipment for a steel structure factory building. Comprising a welding device body and an operation table, the operation table is provided with a first supporting part and a second supporting part, the first supporting part is used for supporting an H-shaped steel body, and the second supporting part is used for fixedly installing a lining plate; the first supporting part comprises a lifting supporting assembly and a supporting bed arranged on the lifting supporting assembly, the supporting bed can support the front end of the H-shaped steel body to incline towards the second supporting part, and the second supporting part can drive the mounting lining plate and the H-shaped steel body to move and rotate. The H-shaped steel main body and the mounting lining plate are supported through the first supporting part and the second supporting part correspondingly, the H-shaped steel main body and the mounting lining plate can be in butt joint rapidly, the H-shaped steel main body can be kept in an inclined state for welding by adjusting the first supporting part, operation of welding wires and the welding device main body is facilitated, and the welding effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure factory building welding equipment, in particular to H-shaped steel welding equipment for steel structure factory buildings. Background Art

[0002] Steel structure workshop mainly refers to the main load-bearing components are composed of steel, including steel columns, steel beams, steel structure foundation, steel roof truss and steel roof. Due to the increase in steel production in my country, most workshops are steel structure workshops, which can be specifically divided into light and heavy steel structure workshops. The main frame of the steel structure workshop is mostly built with H-shaped steel, which is a steel with an H-shaped cross-section, also called universal steel beam, wide flange (edge) I-beam or parallel flange I-beam. When using H-shaped steel to build a steel structure factory, it is generally necessary to first build steel beams and steel load-bearing columns. When building steel load-bearing columns, the H-shaped steel needs to be connected to the ground, and a lining plate will be welded at one end of the H-shaped steel. Then, the H-shaped steel is fixed to the ground through the lining plate. The same is true when building steel beams. However, the existing welding operations of H-shaped steel and lining plates are mostly performed manually on-site. On the one hand, human factors are considered, such as the stability of the workers' hands. When the workers hold the welding equipment for a long time for welding, it is difficult for their hands to maintain continuous stability, resulting in skewed welding. On the other hand, H-shaped steel is a heavy object. When the welding surface needs to be changed, it needs to be manually turned over, which is more troublesome and laborious.

[0003] In order to solve the above problems, a steel structure workshop H-beam welding equipment with Chinese patent publication number CN117300486B includes a base plate, a mounting liner and an H-beam body, and a welding mechanical arm installed on the right side of the base plate. The steel structure workshop H-beam welding equipment also includes: a first holding mechanism, which is arranged on the left front side of the welding mechanical arm, and is used to clamp the mounting liner; a second holding mechanism, which is arranged on the right rear side of the welding mechanical arm, and is used to clamp the H-beam body. The first holding mechanism includes a frame fixedly connected to the front side of the top of the base plate, a movable seat is movably provided on the upper side of the frame, a mounting frame is fixedly connected to the upper side of the movable seat, a clamping assembly for clamping the mounting liner is provided on the mounting frame, a docking assembly for making it close to the second holding mechanism is provided at the bottom of the movable seat, and a positioning assembly for positioning the front end of the H-beam body is also provided at the rear end of the frame. The device can quickly align the H-beam body and the mounting liner, saving time and effort.

[0004] In the specific use of this application, the H-beam body is set horizontally to facilitate its docking with the installation liner. However, since the welding wire of the welding device is set parallel to the installation liner, it is inconvenient to adjust the angle of the welding wire and the welding head, the welding wire cannot be accurately aligned with the joint between the H-beam body and the installation liner, and it is inconvenient to accurately adjust the weld, which affects the welding effect of the H-beam body and the installation liner. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an H-beam welding device for a steel structure workshop.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a steel structure workshop H-beam welding equipment, comprising a welding device body and an operating table, the operating table is provided with a first supporting part and a second supporting part, the first supporting part is used to support the H-beam body, and the second supporting part is used to fix and install the liner; The first support part includes a lifting support assembly and a support bed arranged on the lifting support assembly, the support bed can support the front end of the H-shaped steel body to tilt toward the second support part, and the second support part can drive the installation liner and the H-shaped steel body to move and rotate.

[0007] As an optimization, the lifting support assembly includes the following components: A support arm is rotatably connected between the support bed and the operating table, the upper end of the support arm is rotatably connected to the middle part of the support bed, and the lower end of the support arm is rotatably connected to the operating table and adjacent to the second support part; A supporting telescopic rod, wherein the lower end of the telescopic rod is rotatably connected to the operating table, the upper end of the telescopic rod is rotatably connected to the middle part of the supporting arm, and a triangular structure is formed between the telescopic rod, the lower part of the supporting arm and the operating table; The adjusting telescopic rod is rotatably connected between the lower part of the supporting arm and the supporting bed, and the extended end of the adjusting telescopic rod is connected to the lower side of one end of the supporting bed adjacent to the second supporting part.

[0008] As an optimization, the second supporting part includes a support seat, a connecting seat and an adjusting motor, the support seat is fixed to the operating table, the upper part of the support seat forms a supporting inclined surface, the connecting seat can move along the supporting inclined surface, the supporting inclined surface and the bottom of the support seat are correspondingly provided with a first adjusting groove, the first adjusting groove of the support seat is movably provided with a connecting component, and the housing of the adjusting motor passes through the supporting inclined surface and is connected to the connecting component; The connecting seat is located on a side of the supporting inclined surface opposite to the supporting bed, and the connecting seat is connected to the adjusting motor.

[0009] As an optimization, an opening is provided on a side of the connecting seat opposite to the supporting bed, and a mounting lining plate is provided inside the opening; A bottom support plate and two side support plates are arranged inside the connection seat, and the bottom support plate and the side support plates are connected by an electric telescopic rod, so that the bottom support plate and the side support plates can be pressed against the installation liner.

[0010] As an optimization, a plurality of air bags are arranged on the inner side of the opening, and the outer ends of the air bags are arranged in contact with the front side of the mounting liner; A fixed telescopic rod is arranged on one side of the connecting seat away from the supporting bed, and a plurality of auxiliary telescopic rods are evenly connected to the fixed telescopic rod in the circumferential direction, and the movable ends of the auxiliary telescopic rods and the movable ends of the fixed telescopic rods are both arranged in contact with the mounting liner.

[0011] As an optimization, the connecting assembly includes a connecting block and a connecting telescopic rod. A first adjusting screw is arranged inside the first adjusting groove of the support seat. One end of the first adjusting screw is connected to a first driving motor. The connecting block is threadedly connected to the first adjusting screw. The extended end of the connecting telescopic rod is fixedly connected to the housing of the adjusting motor. The adjusting motor can drive the connecting seat to rotate.

[0012] As an optimization, the output shaft of the adjustment motor is provided with an adjustment block, the side of the connection seat away from the support bed is provided with an adjustment plate, the interior of the adjustment plate is provided with a second adjustment groove arranged along the length direction of the support inclined surface, and the adjustment block is slidably connected to the second adjustment groove; A second adjusting screw rod is disposed inside the second adjusting groove. The second adjusting screw rod is threadedly connected to the adjusting block. One end of the second adjusting screw rod is connected to a second driving motor.

[0013] As an optimization, a guide arc is provided at one end of the support bed away from the second support part; After the H-beam body and the mounting liner are initially welded, the angle of the support bed is adjusted by the lifting support assembly so that the H-beam body contacts the guide arc, and the mounting liner and the H-beam body are driven to flip over by the second support part.

[0014] This scheme is a H-beam welding equipment for steel structure workshop, which has the following benefits: The present application supports the H-beam body and the mounting liner respectively through the first supporting part and the second supporting part, so that the two can be quickly connected. Adjusting the first supporting part can keep the H-beam body in an inclined state for welding, which is convenient for the operation of the welding wire and the welding device body and ensures the welding effect; During the welding process, after the welding of the H-beam body and one side of the mounting liner is completed by the welding device body, the posture of the first support part is adjusted so that the lower part of the H-beam body is suspended in the air, and then the H-beam body is turned over by the second support part to weld the other side. The second support part can synchronously adjust the axial position of the second support part to facilitate the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is an axial schematic diagram of the present invention.

[0016] Figure 2 It is a main schematic diagram of the present invention.

[0017] Figure 3 It is a schematic diagram of the top view of the right side of the operating table of the present invention.

[0018] Figure 4 It is a schematic diagram of the upper axial side of the operating table of the present invention.

[0019] Figure 5 It is a schematic diagram of the axial side of the operating table of the present invention.

[0020] Figure 6 It is a schematic diagram of the back axial side of the present invention.

[0021] Figure 7 It is a schematic diagram of the shaft side of the connecting seat of the present invention.

[0022] Figure 8 It is a schematic axial view of the back of the connecting seat of the present invention.

[0023] Fig. 9 It is a schematic front view of the connecting socket of the present invention.

[0024] Fig.10 It is a schematic diagram of the overall structure of the connecting socket of the present invention.

[0025] Fig.11 For the present invention Figure 5 Schematic diagram of the enlarged structure of part A.

[0026] Among them, 1. welding device body, 2. operating table, 3. H-shaped steel body, 4. installation lining, 5. support bed, 6. support arm, 7. support telescopic rod, 8. adjustment telescopic rod, 9. support seat, 10. connecting seat, 11. adjustment motor, 12. first adjustment groove, 13. bottom support plate, 14. side support plate, 15. electric telescopic rod, 16. airbag, 17. fixed telescopic rod, 18. auxiliary telescopic rod, 19. connecting block, 20. connecting telescopic rod, 21. adjustment block, 22. adjustment plate, 23. second adjustment groove, 24. second drive motor, 25. guide arc. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] like Figure 1-Figure 11 As shown, a steel structure workshop H-beam welding equipment comprises a welding device body 1 and an operating table 2, wherein the operating table 2 is provided with a first supporting part and a second supporting part, wherein the first supporting part is used to support the H-beam body 3, and the second supporting part is used to fix and install a liner plate 4; The first support part includes a lifting support assembly and a support bed 5 arranged on the lifting support assembly, the support bed 5 can support the front end of the H-beam body 3 to tilt toward the second support part, and the second support part can drive the installation liner 4 and the H-beam body 3 to move and rotate.

[0029] A plurality of clamping telescopic rods are arranged on both sides of the length direction of the support bed 5, and the clamping telescopic rods can clamp the H-shaped steel body 3 when extended. The clamping telescopic rods are connected to the controller, and when the H-shaped steel body 3 needs to be released, the clamping telescopic rods are controlled by the controller to shorten. The bottom surface of the support bed 5 is provided with guide rollers, and the guide rollers are in contact with the bottom surface of the H-shaped steel body 3, so that the H-shaped steel body 3 can move along the support bed 5 conveniently.

[0030] like Figure 1 and Figure 2 As shown, the lifting support assembly includes the following components: A support arm 6 is rotatably connected between the support bed 5 and the operating table 2, wherein the upper end of the support arm 6 is rotatably connected to the middle of the support bed 5, and the lower end of the support arm 6 is rotatably connected to the operating table 2 and adjacent to the second support portion; A supporting telescopic rod 7, wherein the lower end of the telescopic rod is rotatably connected to the operating table 2, and the upper end of the telescopic rod is rotatably connected to the middle part of the supporting arm 6, and a triangular structure is formed between the telescopic rod, the lower part of the supporting arm 6 and the operating table 2; The adjustable telescopic rod 8 is rotatably connected between the lower part of the support arm 6 and the support bed 5, and the extended end of the adjustable telescopic rod 8 is connected to the lower side of one end of the support bed 5 adjacent to the second support part.

[0031] The height of the operating bed can be adjusted by adjusting the length of the supporting telescopic rod 7. The angle of the operating bed can be adjusted by adjusting the length of the adjusting telescopic rod 8. When the adjusting telescopic rod 8 is shortened, the end of the operating bed can be lowered, so that the H-shaped steel body 3 tilts downward, and the H-shaped steel body 3 is in vertical contact with the mounting liner 4, which is convenient for welding.

[0032] like Figure 2 and Figure 3 As shown, the second supporting part includes a support seat 9, a connecting seat 10 and an adjusting motor 11, wherein the support seat 9 is fixed to the operating table 2, a supporting inclined surface is formed on the upper part of the support seat 9, and the connecting seat 10 can move along the supporting inclined surface, and a first adjusting groove 12 is correspondingly provided on the supporting inclined surface and the bottom of the support seat 9, and a connecting component is movably provided on the first adjusting groove 12 of the support seat 9, and the housing of the adjusting motor 11 passes through the supporting inclined surface and is connected to the connecting component; The connecting seat 10 is located on a side of the supporting inclined surface opposite to the supporting bed 5 , and the connecting seat 10 is connected to the adjusting motor 11 .

[0033] The upper side of the connecting seat 10 is open to facilitate the insertion of the installation liner 4. The connecting assembly and the adjustment motor 11 can move along the length direction of the first adjustment groove 12. When the axial position changes after the H-shaped steel is flipped, the position of the installation liner 4 can be adjusted so that the H-shaped steel can be in close contact with the support bed 5 after being flipped.

[0034] like Figure 3 and Figure 7 As shown, the connecting seat 10 is provided with an opening on a side opposite to the supporting bed 5, and the mounting liner 4 is arranged inside the opening; A bottom support plate 13 and two side support plates 14 are disposed inside the connection seat 10 . The bottom support plate 13 and the side support plates 14 are connected by an electric telescopic rod 15 , so that the bottom support plate 13 and the side support plates 14 can be pressed against the mounting liner 4 .

[0035] The mounting liner 4 is supported and fixed by the bottom support plate 13 and the two side support plates 14, and the mounting liner 4 is adjusted to a suitable height.

[0036] like Figure 1 and Figure 8 As shown, a plurality of air bags 16 are arranged inside the opening, and the outer ends of the air bags 16 are arranged in contact with the front side of the mounting liner 4; A fixed telescopic rod 17 is arranged on the side of the connecting seat 10 away from the supporting bed 5, and a plurality of auxiliary telescopic rods 18 are evenly connected to the fixed telescopic rod 17 in the circumferential direction. The movable ends of the auxiliary telescopic rods 18 and the movable ends of the fixed telescopic rods 17 are both arranged in contact with the mounting liner 4.

[0037] The rear side of the mounting liner 4 is supported by a fixed telescopic rod 17, and a plurality of auxiliary telescopic rods 18 are evenly distributed on the rear side of the mounting liner 4, so that the mounting liner 4 is pressed against the airbag 16. When the angle of the mounting liner 4 needs to be fine-tuned, the length of a single auxiliary telescopic rod 18 can be adjusted, and the mounting liner 4 is pressed against the airbag 16, and the airbag 16 can be contracted after being pressed, so that the angle of the mounting liner 4 can be adjusted.

[0038] like Figure 8 As shown, the connecting assembly includes a connecting block 19 and a connecting telescopic rod 20, a first adjusting screw is arranged inside the first adjusting slot 12 of the supporting seat 9, one end of the first adjusting screw is connected to a first driving motor, the connecting block 19 is threadedly connected to the first adjusting screw, the extended end of the connecting telescopic rod 20 is fixedly connected to the housing of the adjusting motor 11, and the adjusting motor 11 can drive the connecting seat 10 to rotate.

[0039] The first driving motor can drive the connection block 19 to move along the length direction of the first adjusting slot 12, and the connection block 19 can pull the adjusting motor 11 to move along the fixing seat, thereby adjusting the position of the connection seat 10. When the installation liner 4 and the H-beam body 3 are not connected in a centering manner, after the H-beam body 3 is turned over, the axial height of the installation liner 4 and the connection seat 10 changes, and the position of the connection seat 10 needs to be adjusted.

[0040] like Figure 1 and Fig.10 As shown, the output shaft of the adjusting motor 11 is provided with an adjusting block 21, and the side of the connecting seat 10 away from the supporting bed 5 is provided with an adjusting plate 22, and the inside of the adjusting plate 22 is provided with a second adjusting groove 23 arranged along the length direction of the supporting inclined surface, and the adjusting block 21 is slidably connected with the second adjusting groove 23; A second adjusting screw rod is disposed inside the second adjusting groove 23 . The second adjusting screw rod is threadedly connected to the adjusting block 21 . One end of the second adjusting screw rod is connected to a second driving motor 24 .

[0041] By operating the second driving motor 24 , the height of the connecting seat 10 can be adjusted, so that the connecting seat 10 drives the mounting liner 4 to move to a suitable height.

[0042] like Figure 6 and Fig.11 As shown, a guide arc 25 is provided at one end of the support bed 5 away from the second support portion; After the H-beam body 3 and the mounting liner 4 are initially welded, the angle of the support bed 5 is adjusted by the lifting support assembly so that the H-beam body 3 contacts the guide arc 25, and the mounting liner 4 and the H-beam body 3 are driven to flip over by the second support part.

[0043] The guide arc 25 is a smooth arc surface. When the H-beam body 3 contacts the guide arc 25 , it is convenient to flip the H-beam body 3 .

[0044] Directions: When the device is used, the H-shaped steel body 3 is placed inside the support bed 5, so that the end of the H-shaped steel body 3 opposite to the second support portion extends out of the support bed 5, and the H-shaped steel body 3 is clamped and fixed by clamping the telescopic rod; Place the mounting liner 4 into the connecting seat 10, adjust the height of the mounting liner 4 by the bottom support plate 13, and then clamp the mounting liner 4 by the two side support plates 14 to preliminarily fix the mounting liner 4; The supporting telescopic rod 7 is extended to raise the tail of the supporting bed 5, and the telescopic rod 8 is adjusted to be shortened to lower the end of the supporting bed 5. The H-shaped steel body 3 is tilted downward, and the connecting seat 10 is driven by the second driving motor 24 to rise or fall along the supporting inclined surface of the supporting seat 9, so that the H-shaped steel body 3 is relatively arranged at a suitable position with respect to the mounting liner 4; Loosen the clamping telescopic rod and push the H-beam body 3 to move along the support bed 5 toward the connecting seat 10 until the end of the H-beam body 3 contacts the surface of the mounting liner 4; The H-beam body 3 and the mounting liner 4 are welded by the welding device body 1; After the H-shaped steel body 3 and the upper part of the mounting liner 4 are welded, the telescopic rod 8 is adjusted to be shortened, so that the end of the support bed 5 is lowered, and the H-shaped steel body 3 contacts the guide arc 25 of the support bed 5; The motor 11 is adjusted to drive the connecting seat 10 to rotate, the lining plate 4 is installed and the H-beam body 3 is driven to flip 180 degrees, and the H-beam body 3 and the installation lining plate 4 are continued to be welded by the welding device body 1; After welding is completed, the electric telescopic rod 15, the fixed telescopic rod 17 and the auxiliary telescopic rod 18 are shortened to separate the mounting liner 4 from the side support plate 14, and the telescopic rod 8 is adjusted to extend to support the H-shaped steel body 3 through the support bed 5; The telescopic rod 8 is adjusted to continue to extend, so that the end of the support bed 5 away from the connecting seat 10 is lowered, and the H-shaped steel body 3 can be removed from the support bed 5.

[0045] The above-mentioned specific implementation is only a specific case of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific implementation. Any H-beam welding equipment for steel structure workshops that complies with the claims of the present invention and any appropriate changes or modifications made thereto by ordinary technicians in the corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. A H-beam welding equipment for steel structure workshop, characterized by: The device comprises a welding device body (1) and an operating table (2), wherein the operating table (2) is provided with a first supporting part and a second supporting part, wherein the first supporting part is used to support an H-shaped steel body (3), and the second supporting part is used to fix and install a liner plate (4); The first support part comprises a lifting support assembly and a support bed (5) arranged on the lifting support assembly, wherein the support bed (5) can support the front end of the H-shaped steel body (3) to tilt toward the second support part, and the second support part can drive the installation liner (4) and the H-shaped steel body (3) to move and rotate.

2. The H-beam welding equipment for steel structure workshop according to claim 1 is characterized by: The lifting support assembly includes the following components: A support arm (6) is rotatably connected between the support bed (5) and the operating table (2), the upper end of the support arm (6) is rotatably connected to the middle part of the support bed (5), and the lower end of the support arm (6) is rotatably connected to the operating table (2) adjacent to the second support part; A supporting telescopic rod (7), wherein the lower end of the telescopic rod is rotatably connected to the operating table (2), and the upper end of the telescopic rod is rotatably connected to the middle part of the supporting arm (6), and a triangular structure is formed between the telescopic rod, the lower part of the supporting arm (6) and the operating table (2); The adjustable telescopic rod (8) is rotatably connected between the lower part of the support arm (6) and the support bed (5), and the extended end of the adjustable telescopic rod (8) is connected to the lower side of one end of the support bed (5) adjacent to the second support part.

3. The H-beam welding equipment for steel structure workshop according to claim 1 is characterized by: The second supporting part comprises a supporting seat (9), a connecting seat (10) and an adjusting motor (11), wherein the supporting seat (9) is fixed to the operating table (2), a supporting inclined surface is formed on the upper part of the supporting seat (9), the connecting seat (10) can move along the supporting inclined surface, the supporting inclined surface and the bottom of the supporting seat (9) are respectively provided with a first adjusting groove (12), the first adjusting groove (12) of the supporting seat (9) is movably provided with a connecting component, and the outer shell of the adjusting motor (11) passes through the supporting inclined surface and is connected to the connecting component; The connecting seat (10) is located on a side of the supporting inclined surface opposite to the supporting bed (5), and the connecting seat (10) is connected to the adjusting motor (11).

4. The H-beam welding equipment for steel structure workshop according to claim 3 is characterized by: An opening is provided on a side of the connection seat (10) opposite to the support bed (5), and a mounting lining plate (4) is provided inside the opening; A bottom support plate (13) and two side support plates (14) are arranged inside the connection seat (10); the bottom support plate (13) and the side support plates (14) are connected via an electric telescopic rod (15), so that the bottom support plate (13) and the side support plates (14) can be pressed against the mounting liner (4).

5. The H-beam welding equipment for steel structure workshop according to claim 4 is characterized by: A plurality of air bags (16) are arranged on the inner side of the opening, and the outer ends of the air bags (16) are arranged in contact with the front side surface of the mounting liner (4); A fixed telescopic rod (17) is arranged on the side of the connection seat (10) away from the support bed (5), and a plurality of auxiliary telescopic rods (18) are evenly connected to the fixed telescopic rod (17) in a circumferential direction, and the movable ends of the auxiliary telescopic rods (18) and the movable ends of the fixed telescopic rods (17) are both arranged in contact with the mounting liner (4).

6. The H-beam welding equipment for steel structure workshop according to claim 3 is characterized by: The connecting assembly comprises a connecting block (19) and a connecting telescopic rod (20); a first adjusting screw is arranged inside the first adjusting groove (12) of the supporting seat (9); one end of the first adjusting screw is connected to a first driving motor; the connecting block (19) is threadedly connected to the first adjusting screw; the extended end of the connecting telescopic rod (20) is fixedly connected to the housing of the adjusting motor (11); and the adjusting motor (11) can drive the connecting seat (10) to rotate.

7. The H-beam welding equipment for steel structure workshop according to claim 3 is characterized by: The output shaft of the adjusting motor (11) is provided with an adjusting block (21); the side of the connecting seat (10) away from the supporting bed (5) is provided with an adjusting plate (22); a second adjusting groove (23) arranged along the length direction of the supporting inclined surface is provided inside the adjusting plate (22); and the adjusting block (21) is slidably connected to the second adjusting groove (23); A second adjusting screw rod is arranged inside the second adjusting groove (23), the second adjusting screw rod is threadably connected to the adjusting block (21), and one end of the second adjusting screw rod is connected to a second driving motor (24).

8. The H-beam welding equipment for steel structure workshop according to claim 1 is characterized by: A guide arc (25) is provided at one end of the support bed (5) away from the second support portion; After the H-shaped steel body (3) and the mounting liner (4) are initially welded, the angle of the support bed (5) is adjusted by the lifting support assembly so that the H-shaped steel body (3) contacts the guide arc (25), and the mounting liner (4) and the H-shaped steel body (3) are driven to flip by the second support part.

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