Special-shaped steel structure welding equipment

Abstract

The invention discloses special-shaped steel structure welding equipment, and relates to the technical field of steel structure welding. Comprising a rack, a moving plate is arranged on one side of the rack close to the edge, a guide pipe is fixedly connected to the upper end of the moving plate, and a base plate is arranged on one side of the rack close to the middle. The movable plate accessory structure can be matched with a guide pipe accessory, the angle can be adjusted in a large range, so that the requirements of different welding angles are met, the welding efficiency and quality are improved, meanwhile, the movable plate accessory structure can be matched with steel surfaces of different shapes and sizes, and the positioning precision and stability are guaranteed; according to the overturning mechanism, adjustment can be conducted according to needs when the connecting plate is overturned, so that a steel part used for welding can meet the needed welding angle, the manual operation and equipment debugging time is shortened, wrong welding is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure welding, and in particular to special-shaped steel structure welding equipment. Background Art

[0002] Steel is an indispensable material in people's daily production and life. It is widely demanded and used in automobiles, communications, construction, etc. However, when steel is produced, it often cannot meet people's requirements for the shape and performance of steel. Therefore, the steel must be welded and processed again.

[0003] The utility model with announcement number CN218695616U discloses an automatic welding equipment for steel structure, which can fix two pieces of steel respectively by setting two fixing components, and can push the two steels to approach each other and butt together by setting a first cylinder, so as to prevent the steels from shaking during butt welding. By setting a driving motor to drive the rotation of the lead screw, the lateral position of the welding gun can be flexibly adjusted according to needs, and by setting a dual-axis motor to drive the two driving shafts to rotate synchronously, the two rotating shafts can be driven to rotate synchronously, which can drive the two steels to rotate synchronously, so that the two steels can be rotationally welded. The degree of automation is high, and the welding efficiency and welding accuracy of the steels are improved.

[0004] The above-mentioned prior art parts have certain shortcomings in actual use. Although they can meet the welding needs of angle adjustment within a certain range, they lack corresponding adapter structures when positioning and clamping special-shaped steel, resulting in inability to perform stable operations. Summary of the invention

[0005] The purpose of the present invention is to provide a special-shaped steel structure welding device to solve the above technical problems.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A special-shaped steel structure welding device comprises a frame, a shift plate is arranged at the edge of one side of the frame, a guide tube is fixedly connected to the upper end of the shift plate, and a pad is arranged at the middle of one side of the frame;

[0008] One end surface of the catheter is embedded with a telescopic tube, the surface of the telescopic tube is fixedly connected to a latex sleeve, one end surface of the latex sleeve is rotatably connected to rubber pads on both sides, the other end surface of the latex sleeve is fixedly connected to a long strip on both sides, the surface of the long strip is fixedly connected to a sliding sleeve, and the surface of the sliding sleeve is rotatably connected to a screw sleeve.

[0009] As a further solution of the present invention: the top surface of the frame is fixedly connected to a machine table, the output end of the machine table is fixedly connected to a positioning frame, the surface of the positioning frame is clamped and fixed with a connecting plate, the two long side surfaces of the connecting plate are provided with limiting grooves, and the surface of the connecting plate is fixedly connected to a transparent net.

[0010] As a further solution of the present invention: the bottom end of the moving plate is spirally connected with a bolt, one end surface of the bolt is fixedly connected with a conical head, the surface of the bolt is sleeved with a twist bolt, the top surface of the moving plate is provided with a special-shaped groove, and the upper end of the moving plate is provided with a connecting platform.

[0011] As a further solution of the present invention: a first motor is embedded and fixed on the surface of the connecting platform, an output end of the first motor is fixedly connected to a special-shaped head, the special-shaped head is embedded and fixed to the special-shaped groove, a card slot is provided on the side surface of the connecting platform, and a bearing plate is provided on the upper end of the connecting platform.

[0012] As a further solution of the present invention: a second motor is fixedly connected to the outer surface of the carrier plate, a clamp is fixedly connected to the output end of the second motor, and the clamp is embedded and fixed in the clamping slot.

[0013] As a further solution of the present invention: an air valve is fixedly connected to the surface of one end of the conduit, a friction pattern is provided on the side surface of the conduit near one end edge, the screw sleeve is spirally connected to the friction pattern, the surface of the conduit is sleeved and connected to a casing, sealing plates are fixedly connected to the two end surfaces of the casing, side shells are fixedly connected to the two side surfaces of the casing, a connecting piece is rotatably connected to the inside of the side shell, and the connecting piece is rotatably connected to the rubber pad.

[0014] As a further solution of the present invention: the number of the pads is set to two, the inner sides of the two pads are rotatably connected to the lower pad roller at the middle, the inner sides of the two pads are rotatably connected to the upper pad roller at the upper end, the inner sides of the two pads are fixedly connected to the bottom end with an extension rod, the surface of the extension rod is sleeved and connected to a cylinder, the output end of the cylinder is fixedly connected to a soft head, the surface of the soft head is rotatably connected to a connecting sleeve, the surface of the connecting sleeve is fixedly connected to a toothed rod, and the surfaces of the lower pad roller and the upper pad roller are slidably connected to an arc plate.

[0015] As a further solution of the present invention: the number of the arc plates is set to two, the inner sides of the two arc plates are fixedly connected with a gear rack at the bottom end, the gear rack is meshingly connected with the toothed rod, the inner sides of the two arc plates are fixedly installed with a third motor at the upper end, the output end of the third motor is fixedly connected with a positioning plate, the surface of the positioning plate is fixedly connected with a straight shaft, the surface of the straight shaft is clamped and fixed with a gasket, the upper end of the gasket is symmetrically fixedly connected with a pusher, and the output end of the pusher is fixedly connected with a fixing frame.

[0016] As a further solution of the present invention: a fourth motor is fixedly installed on the surface of the fixed frame in the middle part, the output end of the fourth motor is sleeved and connected with a conveyor belt, the inner side of the conveyor belt is connected with a driven wheel, the surface of the driven wheel is sleeved and connected with a transmission belt, the inner side of the transmission belt is connected with a transmission wheel, the surface of the fixed frame is fixedly connected with a support frame near the two side edges, the surface of the support frame is rotatably connected with an inner support wheel, the transmission wheel and the inner support wheel are fixedly connected, the surface of the inner support wheel is sleeved and connected with a cushion belt, the surface of one end of the fixed frame is rotatably connected with a roller near the top end, the roller is sleeved and connected with the cushion belt, the surface of the support frame is sleeved and connected with a special-shaped frame, the surface of the special-shaped frame is fixedly connected with a connecting block near the middle part, the surface of the special-shaped frame is rotatably connected with an auxiliary cushion wheel near the lower end, and the surface of the special-shaped frame is fixedly connected with a shock absorber near the upper end.

[0017] Beneficial effects of the present invention:

[0018] Through the set plate shifting accessory structure, it can cooperate with the conduit accessories to adjust the angle in a wide range, so as to meet the needs of different welding angles and improve the welding efficiency and quality. At the same time, it can adapt to steel surfaces of different shapes and sizes to ensure the positioning accuracy and stability. Through the set pad accessory structure, it can be adjusted as needed when the connecting plate is flipped, so that the steel parts used for welding can meet the required welding angle, thereby reducing manual operation and equipment debugging time, reducing erroneous welding, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structural connection of the connecting plate, the shifting plate, the conduit and the pad fittings of the present invention;

[0022] Figure 3 It is a schematic diagram of the disassembly of the structure of the shift plate accessory of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the catheter fitting of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection structure of the pad and the arc plate accessory of the present invention;

[0025] Figure 6 It is a schematic diagram of the connection structure of the pad fitting of the present invention;

[0026] Figure 7 It is a schematic diagram of the connection structure of the arc plate fitting of the present invention;

[0027] Figure 8 It is a schematic diagram of the structural connection of the fixing frame accessories of the present invention.

[0028] In the figure: 1, frame; 2, machine table; 3, positioning frame; 4, connecting plate; 5, limiting groove; 6, through net; 7, shifting plate; 8, special-shaped groove; 9, bolt; 10, conical head; 11, screw bolt; 12, connecting table; 13, first motor; 14, special-shaped head; 15, slot; 16, bearing plate; 17, second motor; 18, clamping piece; 19, guide tube; 20, air valve; 21, friction pattern; 22, sliding sleeve; 23, screw rod sleeve; 24, long strip; 25, telescopic tube; 26, latex sleeve; 27, rubber pad; 28, sleeve shell; 29, sealing plate; 30, side shell ; 31. Connecting piece; 32. Pad; 33. Lower pad roller; 34. Upper pad roller; 35. Extension rod; 36. Cylinder; 37. Soft head; 38. Connecting sleeve; 39. Toothed rod; 40. Arc plate; 41. Gear rack; 42. Third motor; 43. Positioning plate; 44. Straight shaft; 45. Gasket; 46. Pusher; 47. Fixed frame; 48. Pusher; 49. Conveyor belt; 50. Driven wheel; 51. Transmission wheel; 52. Support frame; 53. Inner support wheel; 54. Pad belt; 55. Special-shaped frame; 56. Connecting block; 57. Auxiliary pad wheel; 58. Shock absorber. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-Figure 8 As shown, the present invention is a special-shaped steel structure welding device, comprising a frame 1, a shift plate 7 is arranged at the edge of one side of the frame 1, a guide tube 19 is fixedly connected to the upper end of the shift plate 7, and a pad 32 is arranged at the middle of one side of the frame 1;

[0031] A telescopic tube 25 is embedded and connected to one end surface of the catheter 19, a latex sleeve 26 is fixedly connected to the surface of the telescopic tube 25, a rubber pad 27 is rotatably connected to one end surface of the latex sleeve 26 at both sides, a strip 24 is fixedly connected to the other end surface of the latex sleeve 26 at both sides, a sliding sleeve 22 is fixedly connected to the surface of the strip 24, and a screw sleeve 23 is rotatably connected to the surface of the sliding sleeve 22;

[0032] The top surface of the frame 1 is fixedly connected to the machine table 2, the output end of the machine table 2 is fixedly connected to the positioning frame 3, the surface of the positioning frame 3 is clamped and fixed with a connecting plate 4, the two long side surfaces of the connecting plate 4 are provided with limiting grooves 5, and the surface of the connecting plate 4 is fixedly connected with a transparent net 6. When the welding head angle of the welding device is not well aligned, the user can operate the machine table 2 to make the positioning frame 3 on the output end drive the connecting plate 4 to flip, and in this process, the special-shaped steel and the steel parts waiting to be connected with it by welding will be flipped to a suitable angle, so that the welding device can be connected to the welding operation, and in the operation process, the generated welding slag will directly fall through the transparent net 6 to prevent it from rebounding and covering the surface of the special-shaped steel due to actions such as bouncing, and solidifying and connecting with it before cooling;

[0033] The bottom end of the moving plate 7 is spirally connected with a bolt 9, one end surface of the bolt 9 is fixedly connected with a conical head 10, the surface of the bolt 9 is sleeved with a screw bolt 11, the top surface of the moving plate 7 is provided with a special-shaped groove 8, and the upper end of the moving plate 7 is provided with a connecting platform 12;

[0034] A first motor 13 is embedded and fixed on the surface of the connecting platform 12, and a shaped head 14 is fixedly connected to the output end of the first motor 13. The shaped head 14 is embedded and fixed with the shaped slot 8. A slot 15 is provided on the side surface of the connecting platform 12, and a bearing plate 16 is provided on the upper end of the connecting platform 12.

[0035] The outer surface of the carrier plate 16 is fixedly connected with a second motor 17, and the output end of the second motor 17 is fixedly connected with a clamp 18, which is embedded and fixed in the clamping slot 15. For the positioning of the special-shaped steel, four sets of shifting plates 7 are first used to roughly limit the special-shaped steel from the four corners, and the limiting slot 5 is first clamped by the screw bolt 11 and the conical head 10 in conjunction with the bolt 9. Then, according to the actual contact position of the conduit 19 fittings with the special-shaped steel, the user can control the operation of the first motor 13 and the second motor 17 respectively. After adjusting the angle of the two axes, the surface of the conduit 19 is finally facing the surface of the special-shaped steel, and then wait for its positioning to be completed;

[0036] The surface of one end of the conduit 19 is fixedly connected with an air valve 20, and a friction pattern 21 is provided on the side surface of the conduit 19 near one end edge, and the screw sleeve 23 is spirally connected with the friction pattern 21. The surface of the conduit 19 is sleeved and connected with a sleeve shell 28, and the two end surfaces of the sleeve shell 28 are fixedly connected with a sealing plate 29, and the two side surfaces of the sleeve shell 28 are fixedly connected with a side shell 30. The inside of the side shell 30 is rotatably connected with a connecting piece 31, and the connecting piece 31 is rotatably connected with the rubber pad 27. After the bearing plate 16 supports the special-shaped steel, the user can rotate the screw sleeve 23 to make it stay at a suitable position on the surface of the friction pattern 21. In this process, as the latex sleeve 26 is pushed outward, the rubber pads 27 on both sides will slowly expand outward until they are attached to the surface of the special-shaped steel. At this time, the external exhaust device is controlled to generate negative pressure in the latex sleeve 26, so as to further improve the connection stability, so as to ensure that the special-shaped steel remains stable during the positioning welding process;

[0037] The number of pads 32 is set to two, the inner sides of the two pads 32 are rotatably connected to the lower pad roller 33 near the middle, the inner sides of the two pads 32 are rotatably connected to the upper pad roller 34 near the upper end, the inner sides of the two pads 32 are fixedly connected to the bottom end of the extension rod 35, the surface of the extension rod 35 is sleeved and connected to the cylinder 36, the output end of the cylinder 36 is fixedly connected to the soft head 37, the surface of the soft head 37 is rotatably connected to the sleeve 38, the surface of the sleeve 38 is fixedly connected to the toothed rod 39, and the surfaces of the lower pad roller 33 and the upper pad roller 34 are slidably connected to the arc plate 40;

[0038] The number of arc plates 40 is set to two, and the inner sides of the two arc plates 40 are fixedly connected with a gear rack 41 at the bottom end, and the gear rack 41 is meshed and connected with the toothed rod 39. A third motor 42 is fixedly installed on the inner sides of the two arc plates 40 near the upper end, and a positioning plate 43 is fixedly connected to the output end of the third motor 42. A straight shaft 44 is fixedly connected to the surface of the positioning plate 43, and a gasket 45 is clamped and fixed on the surface of the straight shaft 44. A pusher 46 is symmetrically fixedly connected to the upper end of the gasket 45, and a fixing frame 47 is fixedly connected to the output end of the pusher 46. After the user places the steel parts to be welded on the surface of the gasket 45, The user can start the pusher 46 so that the eccentric block 47 gradually supports it in a limited position, and then control the third motor 42 to operate, which can drive the positioning plate 43 and the straight shaft 44 to rotate a certain angle, first adjust its flip angle relative to the connecting plate 4, and then control the cylinder 36 to operate, so that its output end drives the soft head 37 to extend and retract, and finally the toothed rod 39 is rotated in the linkage sleeve 38, and the toothed rack 41 frictionally connected with it will rotate between the lower pad roller 33 and the upper pad roller 34 in this process, thereby completing the rotation of the steel part in the direction of the central axis of the connecting plate 4 to meet the welding angle adaptation requirements with the special-shaped steel.

[0039] A fourth motor 48 is fixedly installed at the middle of the surface of the fixed frame 47, and a conveyor belt 49 is sleeved and connected to the output end of the fourth motor 48. A driven wheel 50 is connected to the inner side of the conveyor belt 49, and a transmission belt is sleeved and connected to the surface of the driven wheel 50, and a transmission belt is connected to the inner side of the transmission belt. A transmission wheel 51 is connected to the inner side of the transmission belt. A support frame 52 is fixedly connected to the surface of the fixed frame 47 near the two side edges, and an inner support wheel 53 is rotatably connected to the surface of the support frame 52. The transmission wheel 51 and the inner support wheel 53 are fixedly connected, and a cushion belt 54 is sleeved and connected to the surface of the inner support wheel 53. A roller is rotatably connected to the surface of one end of the fixed frame 47 near the top, and the roller is sleeved and connected to the cushion belt 54. A special-shaped frame 55 is sleeved and connected to the surface of the support frame 52, and a connecting block 56 is fixedly connected to the surface of the special-shaped frame 55 near the middle. 5 is rotatably connected with an auxiliary pad wheel 57 near the lower end, and the surface of the special-shaped frame 55 is fixedly connected with a shock absorber 58 near the upper end. After the pusher 46 completes pushing, the pad belt 54 will be attached to the surface of the steel part, and cooperate with the gasket 45 to support the steel part from three sides. After the fourth motor 48 drives the conveyor belt 49 to rotate, the driven wheel 50 and the transmission wheel 51 are linked, and finally the inner support wheel 53 is rotated, thereby driving the pad belt 54 to rotate. On the one hand, it can drive the steel part to move forward stably during the early feeding, avoiding the error that may be caused by manual adjustment. On the other hand, during the welding process of steel parts and special-shaped steel, the deformation compensation caused by thermal expansion can be met through adaptive rotation, and the influence of deformation vibration can be further reduced by cooperating with the auxiliary pad wheel 57.

[0040] Working principle of the present invention: when the welding head angle of the welding device is not well aligned, the user can operate the machine 2 so that the positioning frame 3 on the output end drives the connecting plate 4 to flip. During this process, the special-shaped steel and the steel parts waiting to be connected with it by welding will flip to a suitable angle to facilitate the welding device to connect to the welding operation. During the operation, the generated welding slag will fall directly through the transparent net 6 to prevent it from rebounding and covering the surface of the special-shaped steel due to actions such as bouncing, and solidify and connect with it before cooling. For the positioning of the special-shaped steel, first use four sets of shifting plates 7 to roughly limit the special-shaped steel from the four corners, first use the screw bolt 11 and the conical head 10 to cooperate with the bolt 9 to clamp the limiting groove 5, and then According to the actual contact position between the conduit 19 and the special-shaped steel, the user can control the operation of the first motor 13 and the second motor 17 respectively. After adjusting the angles of the two axes, the surface of the conduit 19 is finally facing the surface of the special-shaped steel, and then wait for it to be positioned. After the bearing plate 16 supports the special-shaped steel, the user can rotate the screw sleeve 23 to make it stay at the appropriate position on the surface of the friction pattern 21. During this process, as the latex sleeve 26 moves outward, the rubber pads 27 on both sides will slowly expand outward until they are attached to the surface of the special-shaped steel. At this time, the external vacuum equipment is controlled to generate negative pressure in the latex sleeve 26 to further improve the connection stability to ensure that the special-shaped steel is in a stable state. The positioning welding process remains stable. After the user places the steel piece to be welded on the surface of the gasket 45, the user can start the pusher 46 to allow the eccentric block 47 to gradually limit and support it, and then control the third motor 42 to operate, which can drive the positioning plate 43 and the straight shaft 44 to rotate a certain angle, first adjust its flip angle relative to the connecting plate 4, and then control the cylinder 36 to operate, so that its output end drives the soft head 37 to extend and retract, and in the linkage sleeve 38, it will eventually cause the toothed rod 39 to rotate, and the tooth rack 41 frictionally connected with it will rotate between the lower pad roller 33 and the upper pad roller 34 during this process, thereby completing the rotation of the steel piece in the direction of the central axis of the connecting plate 4 to meet its In order to adapt to the welding angle requirements of the special-shaped steel, after the pusher 46 completes the pushing, the cushion belt 54 will be attached to the surface of the steel part, and cooperate with the gasket 45 to support the steel part from three sides, and after the fourth motor 48 drives the conveyor belt 49 to rotate, the driven wheel 50 and the transmission wheel 51 are linked, and finally the inner support wheel 53 will rotate, thereby driving the cushion belt 54 to rotate. On the one hand, it can drive the steel part to move forward stably during the early feeding, avoiding the errors that may be caused by manual adjustment. On the other hand, during the welding process of steel parts and special-shaped steel, the deformation compensation caused by thermal expansion can be satisfied through adaptive rotation, and the auxiliary cushion wheel 57 can be used to further reduce the influence of deformation vibration.

[0041] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A special-shaped steel structure welding device, comprising a frame (1), characterized in that: A shift plate (7) is provided at the edge of one side of the frame (1), a guide tube (19) is fixedly connected to the upper end of the shift plate (7), and a pad (32) is provided at the middle of one side of the frame (1); One end surface of the catheter (19) is embedded with a telescopic tube (25), the surface of the telescopic tube (25) is fixedly connected with a latex sleeve (26), one end surface of the latex sleeve (26) is rotatably connected with a rubber pad (27) at both sides, the other end surface of the latex sleeve (26) is fixedly connected with a long strip (24) at both sides, the surface of the long strip (24) is fixedly connected with a sliding sleeve (22), and the surface of the sliding sleeve (22) is rotatably connected with a screw sleeve (23).

2. The special-shaped steel structure welding equipment according to claim 1 is characterized in that: The top surface of the frame (1) is fixedly connected to a machine table (2), the output end of the machine table (2) is fixedly connected to a positioning frame (3), a connecting plate (4) is clamped and fixed on the surface of the positioning frame (3), two long side surfaces of the connecting plate (4) are provided with limiting grooves (5), and a transparent net (6) is fixedly connected to the surface of the connecting plate (4).

3. The special-shaped steel structure welding equipment according to claim 1 is characterized in that: The bottom end of the moving plate (7) is spirally connected with a bolt (9), one end surface of the bolt (9) is fixedly connected with a conical head (10), the surface of the bolt (9) is sleeved with a screw bolt (11), the top surface of the moving plate (7) is provided with a special-shaped groove (8), and the upper end of the moving plate (7) is provided with a connecting platform (12).

4. The special-shaped steel structure welding equipment according to claim 3 is characterized in that: A first motor (13) is embedded and fixed on the surface of the connecting platform (12); an output end of the first motor (13) is fixedly connected to a shaped head (14); the shaped head (14) is embedded and fixed with the shaped groove (8); a clamping groove (15) is provided on the side surface of the connecting platform (12); and a bearing plate (16) is provided on the upper end of the connecting platform (12).

5. A special-shaped steel structure welding equipment according to claim 4, characterized in that: A second motor (17) is fixedly connected to the outer surface of the carrier plate (16); a clamp (18) is fixedly connected to the output end of the second motor (17); and the clamp (18) is embedded and fixed in the clamping slot (15).

6. The special-shaped steel structure welding equipment according to claim 1 is characterized in that: An air valve (20) is fixedly connected to the surface of one end of the conduit (19); a friction pattern (21) is provided on the side surface of the conduit (19) near one end edge; the screw sleeve (23) is spirally connected to the friction pattern (21); a sleeve (28) is sleeved on the surface of the conduit (19); sealing plates (29) are fixedly connected to the surfaces of both ends of the sleeve (28); side shells (30) are fixedly connected to the surfaces of both sides of the sleeve (28); a connecting piece (31) is rotatably connected to the inside of the side shell (30); and the connecting piece (31) is rotatably connected to the rubber pad (27).

7. The special-shaped steel structure welding equipment according to claim 1 is characterized in that: The number of the pads (32) is set to two, the inner sides of the two pads (32) are rotatably connected to a lower pad roller (33) at the middle, the inner sides of the two pads (32) are rotatably connected to an upper pad roller (34) at the upper end, the inner sides of the two pads (32) are fixedly connected to an extension rod (35) at the bottom end, the surface of the extension rod (35) is sleeved and connected to a cylinder (36), the output end of the cylinder (36) is fixedly connected to a soft head (37), the surface of the soft head (37) is rotatably connected to a connecting sleeve (38), the surface of the connecting sleeve (38) is fixedly connected to a toothed rod (39), and the surfaces of the lower pad roller (33) and the upper pad roller (34) are slidably connected to an arc plate (40).

8. The special-shaped steel structure welding equipment according to claim 7 is characterized in that: The number of the arc plates (40) is set to two, and the inner sides of the two arc plates (40) are fixedly connected with a gear rack (41) at the bottom end, and the gear rack (41) is meshed with the toothed rod (39). A third motor (42) is fixedly installed on the inner sides of the two arc plates (40) near the upper end, and the output end of the third motor (42) is fixedly connected with a positioning plate (43), and the surface of the positioning plate (43) is fixedly connected with a straight shaft (44), and the surface of the straight shaft (44) is clamped and fixed with a gasket (45), and the upper end of the gasket (45) is symmetrically fixedly connected with a pusher (46), and the output end of the pusher (46) is fixedly connected with a fixing frame (47).

9. The special-shaped steel structure welding equipment according to claim 8, characterized in that: A pusher (48) is fixedly installed at the middle of the surface of the fixed frame (47); the output end of the pusher (48) is sleeved and connected with a conveyor belt (49); the inner side of the conveyor belt (49) is connected with a driven wheel (50); the surface of the driven wheel (50) is sleeved and connected with a transmission belt; the inner side of the transmission belt is connected with a transmission wheel (51); the surface of the fixed frame (47) is fixedly connected with a support frame (52) near the two side edges; the surface of the support frame (52) is rotatably connected with an inner support wheel (53); the transmission wheel (51) and the inner support wheel (53) are rotatably connected. 53) is fixedly connected, the surface of the inner support wheel (53) is sleeved and connected with a cushion belt (54), one end surface of the fixed frame (47) is rotatably connected with a roller near the top end, the roller and the cushion belt (54) are sleeved and connected, the surface of the support frame (52) is sleeved and connected with a special-shaped frame (55), the surface of the special-shaped frame (55) is fixedly connected with a connecting block (56) near the middle, the surface of the special-shaped frame (55) is rotatably connected with an auxiliary cushion wheel (57) near the lower end, and the surface of the special-shaped frame (55) is fixedly connected with a shock absorber (58) near the upper end.

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