Trolley walking device suitable for automatic submerged arc welding of special-shaped steel box girder

Abstract

The invention discloses a trolley walking device suitable for automatic submerged-arc welding of a special-shaped steel box girder. The trolley walking device solves the technical problem that in the prior art, when a non-linear welding seam of the special-shaped steel box girder is welded, time and labor are wasted due to manual welding. Comprising two clamping mechanisms installed at the front end and the rear end of a welding trolley respectively, and each clamping mechanism comprises angle steel installed at the front end or the rear end of the welding trolley and positioning screws detachably installed at the two ends of the angle steel and in sliding contact with the two sides of a top plate of the special-shaped steel box girder; corner posts are arranged at the bottoms of the positioning screws. The automatic welding device is simple in structure, scientific and reasonable in design, convenient to use, capable of effectively achieving automatic welding of the special-shaped steel box girder on the premise that safe welding is guaranteed, easy to assemble and disassemble and capable of guaranteeing efficiency and effectively reducing labor cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel box girder welding, and particularly relates to a trolley walking device suitable for automatic submerged arc welding of special-shaped steel box girders. BACKGROUND

[0002] For super-large special-shaped steel members, especially super-high-rise buildings, special-shaped steel box girders are indispensable components. During the welding process of special-shaped steel box girders, the following problems exist: 1. Conventional welding trolleys are only suitable for straight track walking, and cannot realize automatic welding for special-shaped steel box girders (S-shaped, front wide and rear narrow type, etc.); 2. Track type trolleys can realize welding of special-shaped steel box girders, but manual adjustment of the track is required for different coded components, which is time-consuming and labor-intensive. Conventional welding trolleys can realize straight weld seam welding, but most of the non-straight weld seams are manually welded, which is time-consuming and labor-intensive. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a trolley walking device suitable for automatic submerged arc welding of special-shaped steel box girders, which solves the technical problem of time-consuming and labor-intensive manual welding of non-straight weld seams of special-shaped steel box girders in the prior art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: A trolley walking device suitable for automatic submerged arc welding of special-shaped steel box girders, comprising two clamping mechanisms respectively installed at the front and rear ends of a welding trolley, the clamping mechanism comprising an angle steel installed at the front end or the rear end of the welding trolley, and a positioning screw rod detachably installed at both ends of the angle steel and in sliding contact with both sides of the top plate of the special-shaped steel box girder; the bottom of the positioning screw rod is provided with an angle column.

[0005] Further, two long round holes A are formed at one end of the angle steel, and five long round holes A are formed at the other end of the angle steel, and the long round holes A at both ends of the angle steel are distributed side by side.

[0006] Further, a gasket and a bolt are matched at the top end of the positioning screw rod, and the top end of the positioning screw rod is arranged in the corresponding long round hole A and fastened by the gasket and the bolt.

[0007] Further, the long round holes A are located on the top surface of the angle steel, and the side surface of the angle steel faces the end of the welding trolley and is fixed to the end of the welding trolley.

[0008] Further, two long round holes B are formed side by side in the middle of the side surface of the angle steel, and the end of the welding trolley is fixed to the side surface of the angle steel through the long round holes B.

[0009] Further, two connecting screw rods are arranged at the end of the welding trolley, the connecting screw rods are arranged in the long round holes B and fastened in the long round holes B by bolts and gaskets.

[0010] Further, the long round holes A are arranged in a straight line.

[0011] Furthermore, the angle steel and its two end positioning bolts straddle the irregular steel box girder, and the angle column slides in contact with the top surface of the welded jig of the irregular steel box girder.

[0012] Furthermore, the bottom surface of the corner prism is a smooth, rounded arc.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention has a simple structure, a scientific and reasonable design, and is easy to use. Under the premise of ensuring safe welding, it can effectively realize the automatic welding of irregular steel box girders. Its loading and unloading are simple, which can not only ensure efficiency but also effectively reduce labor costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the clamping mechanism of the present invention.

[0015] Figure 2 This is a schematic diagram of the clamping mechanism of the present invention from another perspective.

[0016] Figure 3 This is a top view of the angle steel of the present invention.

[0017] Figure 4 This is a schematic diagram of the connecting screw on the welding trolley of the present invention.

[0018] Figure 5 This is a top view of the connecting screw on the welding trolley of the present invention.

[0019] The names corresponding to the reference numerals in the attached figures are as follows: 1-Angle steel, 2-Positioning screw, 3-Angle post, 4-Oblong hole A, 5-Washer, 6-Bolt, 7-Oblong hole B, 8-Connecting screw, 9-Welding carriage. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0021] Example 1 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley 9. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley 9, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0022] An angle steel 1 is fixed at each end of the welding trolley 9, with the angle steel 1 perpendicular to the front and rear directions of the welding trolley 9. The positioning screw 2 is clamped on both sides of the top plate of the irregular steel box girder and slides in contact with both sides of the top plate of the irregular steel box girder. When the welding trolley moves back and forth, the angle steel 1 moves synchronously, and the positioning screw 2 moves synchronously. When the top plate of the irregular steel box girder bends, the welding trolley will not move or slip off the top plate of the irregular steel box girder under the action of the positioning screw 2, but will automatically turn and continue the welding operation.

[0023] This invention has a simple structure, a scientific and reasonable design, and is easy to use. Under the premise of ensuring safe welding, it can effectively realize the automatic welding of irregular steel box girders. Its loading and unloading are simple, which can not only ensure efficiency but also effectively reduce labor costs.

[0024] Example 2 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0025] Angle steel 1 has two elongated holes A4 at one end and five elongated holes A4 at the other end, with the elongated holes A4 at both ends of angle steel 1 arranged side by side.

[0026] Based on Example 1, this embodiment 2 provides a more preferred structure for the angle steel 1. Specifically, one end of the angle steel 1 has two elongated holes A4, and the other end has five elongated holes A4, with the elongated holes A4 at both ends of the angle steel 1 arranged side by side. The elongated holes A4 facilitate the installation of the positioning screws 2. The multiple elongated holes A4 provide more installation space for the positioning screws 2. By adjusting the positioning screws 2 in different elongated holes A4 and at different positions in the elongated holes A4, the distance between the two positioning screws 2 can be varied, thus making it suitable for more irregular steel box girder top plate widths and effectively increasing the applicability of this invention.

[0027] Example 3 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0028] Angle steel 1 has two elongated holes A4 at one end and five elongated holes A4 at the other end, with the elongated holes A4 at both ends of angle steel 1 arranged side by side.

[0029] The top of the positioning screw 2 is fitted with a washer 5 and a bolt 6. The top of the positioning screw 2 passes through the corresponding elongated hole A4 and is fastened by the washer 5 and the bolt 6.

[0030] Based on Example 2, this embodiment 3 presents a more preferred structure for the positioning screw 2. Specifically, the top of the positioning screw 2 is fitted with a washer 5 and a bolt 6, and the top of the positioning screw 2 passes through the corresponding elongated hole A4 and is fastened by the washer 5 and the bolt 6. The structure is simple, stable, reliable, and easy to assemble and disassemble.

[0031] Example 4 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0032] Angle steel 1 has two elongated holes A4 at one end and five elongated holes A4 at the other end, with the elongated holes A4 at both ends of angle steel 1 arranged side by side.

[0033] The oblong hole A4 is located on the top surface of angle steel 1, and the side of angle steel 1 faces the end of the welding trolley and is fixed to the end of the welding trolley.

[0034] Based on Example 2, this embodiment 4 provides a more preferred structure for the angle steel 1, specifically: an oblong hole A4 is located on the top surface of the angle steel 1, and the side of the angle steel 1 faces the end of the welding carriage and is fixed to the end of the welding carriage. A positioning screw 2 passes through the oblong hole A4 and is fixed by bolts; the positioning screw 2 is perpendicular to the angle steel 1. This facilitates the angle steel 1 and the positioning screw 2 straddling the welding carriage.

[0035] Example 5 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0036] Angle steel 1 has two elongated holes A4 at one end and five elongated holes A4 at the other end, with the elongated holes A4 at both ends of angle steel 1 arranged side by side.

[0037] The oblong hole A4 is located on the top surface of angle steel 1, and the side of angle steel 1 faces the end of the welding trolley and is fixed to the end of the welding trolley.

[0038] Two elongated holes B7 are opened side by side in the middle of the side of the angle steel 1. The end of the welding trolley is fixed to the side of the angle steel 1 through the elongated holes B7.

[0039] Based on Example 4, this embodiment 5 presents a more preferred structure for the angle steel 1. Specifically, two elongated holes B7 are arranged side-by-side in the middle of the side of the angle steel 1, and the end of the welding carriage is fixedly connected to the side of the angle steel 1 through the elongated holes B7. The end of the welding carriage is fixedly connected to the side of the angle steel 1. The structure is simple and easy to assemble and disassemble.

[0040] Example 6 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0041] Angle steel 1 has two elongated holes A4 at one end and five elongated holes A4 at the other end, with the elongated holes A4 at both ends of angle steel 1 arranged side by side.

[0042] The oblong hole A4 is located on the top surface of angle steel 1, and the side of angle steel 1 faces the end of the welding trolley and is fixed to the end of the welding trolley.

[0043] Two elongated holes B7 are opened side by side in the middle of the side of the angle steel 1. The end of the welding trolley is fixed to the side of the angle steel 1 through the elongated holes B7.

[0044] The welding trolley is equipped with two connecting screws 8 at its end. The connecting screws 8 pass through the elongated hole B7 and are fastened to the elongated hole B7 by bolts and washers.

[0045] Based on Example 5, this embodiment 6 provides a more preferred connection structure between the welding carriage and the angle steel 1. Specifically, the welding carriage end is provided with two connecting screws 8, which pass through the elongated hole B7 and are fastened to the elongated hole B7 by bolts and washers. The structure is simple and stable, easy to assemble and disassemble, and the detachable bolts and screws facilitate reuse and save materials.

[0046] Example 7 like Figures 1-5As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0047] Angle steel 1 has two elongated holes A4 at one end and five elongated holes A4 at the other end, with the elongated holes A4 at both ends of angle steel 1 arranged side by side.

[0048] The oblong holes A4 are arranged in a straight line.

[0049] Based on Example 2, Example 7 provides a more preferred structure for the oblong hole A4, specifically: the oblong hole A4 is distributed in a straight line. The straight distribution of the oblong hole A4 results in a more compact structure and greater precision when the welding carriage turns.

[0050] Example 8 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0051] Angle steel 1 and its two end positioning screws 2 straddle the irregular steel box girder, and the corner column 3 slides in contact with the top surface of the welded jig of the irregular steel box girder.

[0052] Based on Example 1, this embodiment 8 presents a more preferred structure for the angle steel 1 and the positioning screws 2. Specifically, the angle steel 1 and the positioning screws 2 at both ends straddle the irregular steel box girder, and the corner post 3 slides in contact with the top surface of the welded frame of the irregular steel box girder. The corner post 3 ensures that the overall structure of the trolley traveling device is more stable.

[0053] Example 9 like Figures 1-5 As shown, the present invention provides a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, including two clamping mechanisms respectively installed at the front and rear ends of the welding trolley. The clamping mechanism includes an angle steel 1 installed on the front or rear end of the welding trolley, and a positioning screw 2 detachably installed at both ends of the angle steel 1 and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw 2 is provided with a corner post 3.

[0054] Angle steel 1 and its two end positioning screws 2 straddle the irregular steel box girder, and the corner column 3 slides in contact with the top surface of the welded jig of the irregular steel box girder.

[0055] The bottom surface of corner prism 3 is a smooth arc surface.

[0056] Based on Example 8, this embodiment 9 provides a more preferred structure for the corner post 3, specifically: the bottom surface of the corner post 3 is a smooth arc surface. The smooth arc surface can reduce its contact area with the top surface of the welding jig for the irregular steel box girder, and also facilitates sliding.

[0057] This invention includes an angle steel 1, a positioning screw 2, an angle post 3, an oblong hole A4, a washer 5, a bolt 6, an oblong hole B7, and a connecting screw 8. Seven oblong holes A4 cut into the top surface of the angle steel 1 are connected to the positioning screw 2 via washers and bolts. By adjusting the position of the bolt within the oblong holes A4, clamping and limiting welding of the top plate of steel box girders of different widths can be achieved. Additionally, three more oblong holes A4 are added on one side to facilitate switching between single-machine and dual-head welding carriages.

[0058] Before welding the irregular steel box girder, the welding trolley is fixed to the front and rear ends of the welding trolley via the elongated hole B7 on angle steel 1, thus securing the welding trolley to the clamping mechanism. Then, based on the width of the steel box girder, the distance between the two positioning screws 2 on angle steel 1 is adjusted, allowing the clamping mechanism to straddle the top plate of the irregular steel box girder. Driven by the welding trolley's wheels, the trolley moves along a predetermined track to achieve weld welding. This improves automated welding efficiency while ensuring simple and safe operation.

[0059] The walking device of this invention can achieve the welding of the top plate of irregular steel box girder without the need for traditional manual welding, thus reducing labor costs.

[0060] The walking device of the present invention does not require control of the width of the steel box girder, and the walking path can be controlled by the clamping mechanism on the irregular top plate without manual intervention.

[0061] The angle steel 1 of this invention can serve as an auxiliary support for the welding trolley. The multiple elongated holes A4 facilitate the adjustment of the spacing between the positioning screws 2 to accommodate the top plates of irregularly shaped steel box girders of different widths. By adjusting the connection elevation between the positioning screws 2 and the elongated holes A4, the height between the upper corner post 3 of the positioning screws 2 and the elongated holes A4 can be controlled, thereby enabling the welding trolley to position the welding depth.

[0062] This invention relates to a trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders. During use, angle steel and positioning screws straddle the top plate of the irregular steel box girder, allowing the clamping mechanism to position the top plates of irregular steel box girders of different widths. After placing it on the top plate of the irregular steel box girder and adjusting its height, positioning welding of welds of different depths can be achieved. Automatic welding is realized under the drive of the welding trolley.

[0063] This invention overcomes the limitations of traditional steel box girder top plate automatic welding trolleys that only perform linear automatic welding. It designs a trolley travel device for automatic submerged arc welding of irregularly shaped steel box girders. By adjusting the position of the positioning screw 2 within the elongated hole A4, it achieves precise positioning and welding of the top plate width and depth. Furthermore, this invention eliminates the need for manual intervention in the welding path and manual welding itself, reducing manual welding steps, simplifying disassembly, lowering labor costs, and significantly improving its practicality.

[0064] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit the invention, nor are they intended to limit the scope of the patent. Any modifications or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but which still solve the same technical problem as the present invention, should be included within the scope of protection of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the scope of patent protection of the present invention.

Claims

1. A trolley traveling device suitable for automatic submerged arc welding of irregular steel box girders, characterized in that, It includes two clamping mechanisms installed at the front and rear ends of the welding trolley respectively. The clamping mechanism includes an angle steel (1) installed on the front or rear end of the welding trolley, and a positioning screw (2) detachably installed at both ends of the angle steel (1) and slidingly contacting both sides of the top plate of the irregular steel box girder; the bottom of the positioning screw (2) is provided with a corner post (3).

2. The trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 1, characterized in that, Angle steel (1) has two elongated holes A (4) at one end and five elongated holes A (4) at the other end. The elongated holes A (4) at both ends of angle steel (1) are arranged side by side.

3. The trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 2, characterized in that, The top of the positioning screw (2) is fitted with a washer (5) and a bolt (6). The top of the positioning screw (2) passes through the corresponding elongated hole A (4) and is fastened by the washer (5) and the bolt (6).

4. The trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 2, characterized in that, The elongated hole A (4) is located on the top surface of the angle steel (1), and the side of the angle steel (1) faces the end of the welding trolley and is fixed to the end of the welding trolley.

5. A trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 4, characterized in that, Two elongated holes B (7) are opened side by side in the middle of the side of the angle steel (1). The end of the welding trolley is fixed to the side of the angle steel (1) through the elongated holes B (7).

6. A trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 5, characterized in that, The welding trolley is equipped with two connecting screws (8) at the end. The connecting screws (8) are inserted into the elongated hole B (7) and fastened to the elongated hole B (7) by bolts and washers.

7. A trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 2, characterized in that, The oblong holes A (4) are distributed in a straight line.

8. A trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 1, characterized in that, Angle steel (1) and its two end positioning screws (2) straddle the irregular steel box girder together, and the corner column (3) slides in contact with the top surface of the welding frame of the irregular steel box girder.

9. A trolley traveling device for automatic submerged arc welding of irregular steel box girders according to claim 8, characterized in that, The bottom surface of the corner prism (3) is a smooth arc surface.

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