Welding device for bridge steel structure

Abstract

The utility model belongs to the technical field of welding of steel structures, in particular to a welding device of a bridge steel structure, which is characterized in that the inner wall of a first nut is rotatably connected with a second screw rod, the inner wall of the first nut is fixedly connected with a guide rod, and the outer wall of the second screw rod is in threaded connection with a second nut; the second nuts are slidably connected to the outer walls of the guide rods, the outer wall of one first nut is fixedly connected with a second motor, the output end of the second motor is fixedly connected with one end of a second screw, and a clamping mechanism capable of adjusting the fixing angle of the object to be welded is installed on the upper surface of each second nut. A clamping mechanism is arranged on the upper surface of the bearing plate, the rotating angle of a to-be-welded object can be adjusted by arranging the clamping mechanism, and weldments of different shapes and sizes can be conveniently clamped for butt joint through angle adjustment of a fixed clamping mechanism and an adjustable clamping mechanism in combination with adjustment of a second screw rod and a first screw rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to the welding technical field of steel structure, concretely is a kind of welding device of bridge steel structure. BACKGROUND

[0002] Steel structure bridge as a common structure has been widely applied railway, highway etc., large steel structure bridge is generally spliced in workshop, then factory shipment is transported, welding operation is needed to bridge in the splicing process.

[0003] Chinese patent (grant announcement number: CN220943842U, grant announcement day: 2024.5.14) proposes a kind of road bridge steel structure welding device, the setting of the patent through double-shaft motor, first threaded rod, first threaded sleeve and first connecting rod, two clamping mechanisms can be driven to move relatively or in opposite directions, so as to drive two steel structures to be automatically spliced, improve the welding effect, and the setting of adjusting mechanism can drive the welding head to move forward and backward, expand the welding range.

[0004] The existing welding device has the problem of small adjustable angle of workpiece, and the personnel involved in welding needs to disassemble the welding piece when adjusting the angle, or the welding worker needs to change his own angle to adapt to the angle of the welding piece, which increases the welding difficulty and workload of the welding worker. At the same time, it is difficult to realize good butt joint between the two angle-fixed clamps for different shapes of welding pieces. Therefore, we propose a kind of adjustable welding device for bridge steel structure. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of welding device for bridge steel structure, solves the problem in the background.

[0006] To achieve the above purpose, the utility model is realized by the following technical solutions:

[0007] The utility model provides a kind of welding device of bridge steel structure, including bearing plate, object to be welded, the lower surface of the bearing plate is fixedly connected with support foot, the left side of the bearing plate is fixedly connected with second guide sliding slot, the right side of the bearing plate is fixedly connected with first guide sliding slot, the upper surface of the bearing plate is fixedly connected with fan, the inner wall of the second guide sliding slot is rotatably connected with first screw rod, the outer wall of the first screw rod is threadedly connected with first nut, the outer wall of the second guide sliding slot is fixedly connected with first motor, the output of the first motor is fixedly connected with one end of first screw rod, the first nut is slidably connected in the outer wall of second guide sliding slot, the inner wall of the first nut is rotatably connected with second screw rod, the inner wall of the first nut is fixedly connected with guide rod, the outer wall of the second screw rod is threadedly connected with second nut, the second nut is slidably connected in the outer wall of guide rod, the outer wall of one of the first nut is fixedly connected with second motor, the output of the second motor is fixedly connected with one end of second screw rod, the upper surface of the second nut is equipped with clamping mechanism that the fixed angle of object to be welded can be adjusted, the upper surface of the bearing plate is provided with clamping mechanism.

[0008] Preferably, the upper surface of the bearing plate is fixedly connected with a fixed seat, the upper surface of the fixed seat is fixedly connected with an oil cylinder, and the clamping mechanism is arranged on the movable end of the oil cylinder.

[0009] Preferably, the clamping mechanism comprises a first steering joint, a second steering joint, a fixed clamping plate, a limiting threaded rod, a movable clamping plate, an adjusting threaded rod, and a control rod. The first steering joint is fixedly connected to the movable end of the oil cylinder. A sphere is arranged above the first steering joint. The second steering joint is movably connected to the outer wall of the first steering joint. A plate with a threaded hole is arranged on the inner wall of the second steering joint. The limiting threaded rod is threadedly connected to the inner wall of the plate. The limiting threaded rod is movably connected to the outer surface of the sphere of the first steering joint.

[0010] Preferably, the fixed clamping plate is fixedly connected to the upper surface of the second steering joint. The control rod is fixedly connected to the upper surface of the limiting threaded rod. The control rod is slidably connected to the inner wall of the fixed clamping plate.

[0011] Preferably, a threaded hole is arranged on the inner wall of the movable clamping plate. A through hole is arranged on the inner wall of the movable clamping plate. The control rod is slidably connected to the inner wall of the through hole. The adjusting threaded rod is threadedly connected to the inner wall of the threaded hole. The adjusting threaded rod is rotatably connected to the inner wall of the fixed clamping plate.

[0012] Preferably, a hand-tightening end is arranged on the upper end of the control rod. A hand-tightening end is arranged on the upper end of the adjusting threaded rod.

[0013] Beneficial effects

[0014] The utility model provides a kind of welding device of bridge steel structure.Compared with prior art, it has the following beneficial effects:

[0015] 1、The welding device of bridge steel structure, by setting first screw rod, second screw rod drives second nut, first nut moves to be able to adjust the butt joint direction between two clamping mechanisms, improve the freedom of two objects to be welded to move, improve work efficiency, by setting second motor, first motor can automatically drive the adjustment of first nut, second nut, can further improve the adjustment speed.

[0016] 2、The welding device of bridge steel structure, by setting clamping mechanism can adjust the rotation angle of object to be welded, by the angle adjustment of one fixed clamping mechanism and one adjustable clamping mechanism, and in combination with the adjustment of second screw rod and first screw rod, it can conveniently butt joint of welding piece of different shape and size, simultaneously align the side of welding piece that needs to be welded to welding worker, reduce the labor intensity of welding worker. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is main body structure schematic view of the utility model;

[0018] Figure 2 It is main body cross section structure schematic view of the utility model;

[0019] Figure 3 It is another view angle schematic view of main body cross section structure of the utility model;

[0020] Figure 4 It is another view angle schematic view of main body cross section structure of the utility model.

[0021] In the drawing: 1, support foot; 2, bearing plate; 3, first guide slot; 4, second guide slot; 5, first screw rod; 6, first motor; 7, first nut; 8, second motor; 9, second nut; 10, second screw rod; 11, guide rod; 12, fan; 13, clamping mechanism; 14, object to be welded; 15, fixed seat; 16, oil cylinder; 131, first steering joint; 132, second steering joint; 133, fixed clamping plate; 134, limit threaded rod; 135, movable clamping plate; 136, adjusting threaded rod; 137, control rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-2 The utility model provides a technical scheme: a kind of welding device of bridge steel structure, including bearing plate 2, object 14 to be welded, the lower surface of bearing plate 2 is fixedly connected with support foot 1, the left side of bearing plate 2 is fixedly connected with second guide sliding slot 4, the right side of bearing plate 2 is fixedly connected with first guide sliding slot 3, the upper surface of bearing plate 2 is fixedly connected with fan 12, the inner wall of second guide sliding slot 4 is rotatably connected with first screw rod 5, the outer wall of first screw rod 5 is threadedly connected with first nut 7, the outer wall of second guide sliding slot 4 is fixedly connected with first motor 6, the output end of first motor 6 is fixedly connected with one end of first screw rod 5, first nut 7 is slidably connected in the outer wall of second guide sliding slot 4, the inner wall of first nut 7 is rotatably connected with second screw rod 10, the inner wall of first nut 7 is fixedly connected with guide rod 11, the outer wall of second screw rod 10 is threadedly connected with second nut 9, second nut 9 is slidably connected in the outer wall of guide rod 11, the outer wall of one of first nut 7 is fixedly connected with second motor 8, the output end of second motor 8 is fixedly connected with one end of second screw rod 10, the upper surface of second nut 9 is equipped with the clamping mechanism 13 of adjustable object 14 to be welded fixed angle, the upper surface of bearing plate 2 is provided with clamping mechanism 13, by being provided fan 12 is to facilitate suction harmful gas generated when welding.

[0024] Reference Figures 3-4The upper surface of the bearing plate 2 is fixedly connected with a fixed seat 15, the upper surface of the fixed seat 15 is fixedly connected with an oil cylinder 16, the clamping mechanism 13 is arranged at the movable end of the oil cylinder 16, the clamping mechanism 13 comprises a first turning joint 131, a second turning joint 132, a fixed clamping plate 133, a limiting threaded rod 134, a movable clamping plate 135, an adjusting threaded rod 136 and a control rod 137, the first turning joint 131 is fixedly connected with the movable end of the oil cylinder 16, an upper portion of the first turning joint 131 is provided with a ball, the second turning joint 132 is movably connected with the outer wall of the first turning joint 131, the inner wall of the second turning joint 132 is provided with a plate with a threaded hole, the limiting threaded rod 134 is threadedly connected with the inner wall of the plate, the limiting threaded rod 134 is movably connected with the outer surface of the ball of the first turning joint 131, the fixed clamping plate 133 is fixedly connected with the upper surface of the second turning joint 132, the control rod 137 is fixedly connected with the upper surface of the limiting threaded rod 134, the control rod 137 is slidably connected with the inner wall of the fixed clamping plate 133, the inner wall of the movable clamping plate 135 is provided with a threaded hole, the inner wall of the movable clamping plate 135 is provided with a through hole, the control rod 137 is slidably connected with the inner wall of the through hole, the adjusting threaded rod 136 is threadedly connected with the inner wall of the threaded hole, the adjusting threaded rod 136 is rotatably connected with the inner wall of the fixed clamping plate 133, the upper end of the control rod 137 is provided with a hand screw end, the upper end of the adjusting threaded rod 136 is provided with a hand screw end, the hand screw end can be hexagonal, so as to be adjusted by a wrench, the control rod 137 is arranged to guide the movement of the movable clamping plate 135, the oil cylinder 16 is arranged to facilitate the adjustment of the height, so as to improve the degree of freedom of the structure.

[0025] Working principle: when in use, the movable clamping plate 135 is moved up and down on the outer wall of the control rod 137 by rotating the adjusting threaded rod 136, so as to expand the distance between the control rod 137 and the fixed clamping plate 133, then the object to be welded 14 is installed between the control rod 137 and the fixed clamping plate 133, and the object to be welded 14 is fixed by rotating the adjusting threaded rod 136 to adjust the movable clamping plate 135, then the lower surface of the limiting threaded rod 134 is separated from the upper surface of the first turning joint 131 by rotating the control rod 137, so that the second turning joint 132 can drive the object to be welded 14 to rotate freely in a certain direction, and the side of the object to be welded 14 that needs to be welded is moved to the required angle, then the angle between the second turning joint 132 and the first turning joint 131 is fixed by reversing the control rod 137, at this time, another clamping mechanism 13 is adjusted, and another object to be welded 14 is clamped and fixed at a suitable position by the clamping mechanism 13;

[0026] Then by controlling the first motor 6 drives the first screw 5 rotation, and then drive two first nut 7 in the second guide slot 4 slot in the front and rear sliding, at this time by controlling the second motor 8 synchronous drive second screw 10 rotation, control the second nut 9 left and right movement, and then the object to be welded 14 and object to be welded 14 butt neat, at this time the object to be welded 14 completed angle adjustment facilitates the welder to carry out welding work.

[0027] It should be noted that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.

[0028] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A welding device for bridge steel structures, comprising a bearing plate (2) and an object to be welded (14), characterized in that: The lower surface of the support plate (2) is fixedly connected to a support foot (1), the left side of the support plate (2) is fixedly connected to a second guide groove (4), the right side of the support plate (2) is fixedly connected to a first guide groove (3), the upper surface of the support plate (2) is fixedly connected to a fan (12), the inner wall of the second guide groove (4) is rotatably connected to a first screw (5), the outer wall of the first screw (5) is threadedly connected to a first nut (7), the outer wall of the second guide groove (4) is fixedly connected to a first motor (6), the output end of the first motor (6) is fixedly connected to one end of the first screw (5), and the first nut (7) is slidably connected to the second guide groove (4). The outer wall of the first nut (7) is rotatably connected to the inner wall of the second screw (10), the inner wall of the first nut (7) is fixedly connected to the guide rod (11), the outer wall of the second screw (10) is threadedly connected to the second nut (9), the second nut (9) is slidably connected to the outer wall of the guide rod (11), the outer wall of one of the first nuts (7) is fixedly connected to the second motor (8), the output end of the second motor (8) is fixedly connected to one end of the second screw (10), the upper surface of the second nut (9) is equipped with a clamping mechanism (13) that can adjust the fixed angle of the object to be welded (14), and the upper surface of the bearing plate (2) is provided with a clamping mechanism (13).

2. The welding device for bridge steel structures according to claim 1, characterized in that: A fixed seat (15) is fixedly connected to the upper surface of the bearing plate (2), and a hydraulic cylinder (16) is fixedly connected to the upper surface of the fixed seat (15). The clamping mechanism (13) is located at the movable end of the hydraulic cylinder (16).

3. The welding device for bridge steel structures according to claim 2, characterized in that: The clamping mechanism (13) includes a first steering joint (131), a second steering joint (132), a fixed clamping plate (133), a limiting threaded rod (134), a movable clamping plate (135), an adjusting threaded rod (136), and a control rod (137). The first steering joint (131) is fixedly connected to the movable end of the oil cylinder (16). A ball is provided above the first steering joint (131). The second steering joint (132) is movably connected to the outer wall of the first steering joint (131). A plate with a threaded hole is provided on the inner wall of the second steering joint (132). The limiting threaded rod (134) is threadedly connected to the inner wall of the plate. The limiting threaded rod (134) is movably connected to the outer surface of the ball of the first steering joint (131).

4. The welding device for bridge steel structures according to claim 3, characterized in that: The fixed clamping plate (133) is fixedly connected to the upper surface of the second steering joint (132), the control rod (137) is fixedly connected to the upper surface of the limiting threaded rod (134), and the control rod (137) is slidably connected to the inner wall of the fixed clamping plate (133).

5. The welding device for bridge steel structures according to claim 3, characterized in that: The inner wall of the movable clamping plate (135) is provided with a threaded hole and a through hole. The control rod (137) is slidably connected to the inner wall of the through hole. The adjusting threaded rod (136) is threadedly connected to the inner wall of the threaded hole and is rotatably connected to the inner wall of the fixed clamping plate (133).

6. The welding device for bridge steel structures according to claim 3, characterized in that: The upper end of the control lever (137) is provided with a hand-tightening end, and the upper end of the adjusting threaded rod (136) is provided with a hand-tightening end.

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