Fixing device for joist steel butt welding

Abstract

A fixing device for butt welding of I-shaped steel comprises a double-spliced clamping plate body and is characterized in that the double-spliced clamping plate body comprises two rectangular steel plates (2), each rectangular steel plate is provided with eight through holes, the two rectangular steel plates are symmetrically arranged, a screw (3) is arranged in each through hole, one end of each screw is provided with a nut (1), and the other end of each screw is provided with a nut (2). When the double-spliced clamping plate fixing device is used, the two ends of two pieces of I-shaped steel (4) to be welded can be clamped between the double-spliced clamping plates. The fixing device for joist steel butt welding has the advantages that the fixing problem during joist steel butt welding is solved, heavy joist steel to be subjected to butt welding can be firmly fixed, welding operation is convenient, operation is easy, repeated use can be achieved, and the efficiency and the construction quality of welding operation can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding, in particular to a fixing device for butt welding of I-beams. Background Art

[0002] For example, Chinese utility model patent No. 202120733492.0, the invention name of which is an I-beam welding fixing frame, discloses a fixing device for an I-beam, including a device main body; the height of the support plate can be adjusted by the telescopic action of the second telescopic cylinder and the third telescopic cylinder. After the top surface and two side surfaces of the joint of the I-beam are welded, the support plate can be lifted by the telescopic action of the second telescopic cylinder and the third telescopic cylinder, thereby increasing the welding operation space between the bottom surface of the I-beam and the bottom plate; the first slide block and the second slide block can be moved in the first slide groove by the action of the first telescopic cylinder, thereby adjusting the position of the support plate; the spacing between the third slide block and the fourth slide block can be adjusted by rotating the bidirectional screw rod, thereby adjusting the spacing between the first limit plate and the second limit plate, so that the structure can install and fix I-beams of different sizes.

[0003] Another example is China's invention patent No. 202211246201.0, and the name of the invention is an I-beam assembly pre-welding fixing device, which includes two mounting seats relatively installed on a base, a support roller assembly is horizontally installed between the two mounting seats, a web limit device is installed on the mounting seat, a wing plate limit device is installed on the mounting seat, a portal frame is installed on the two mounting seats, the pressure wheel is hoisted on the portal frame through a telescopic device, the welding device is installed on the mounting seat, and the electric control box is installed on the outside of the mounting seat; the support roller assembly, the web limit device, the wing plate limit device and the telescopic device are all connected to the electric control box; the steel is transported by supporting the support rollers, the web and the wing plate are positioned by the web limit device and the wing plate limit device respectively, and the pressure wheel is pressed on the top of the upper wing plate to ensure that the web and the wing plate are closely fitted and the welding gap is reduced.

[0004] From the above, it can be seen that when welding I-beams, the flanges and webs need to be aligned on multiple sides. Since the I-beams themselves are heavy and the construction environment is relatively complex, alignment and fixation are difficult during welding. Complex functions are required to achieve smooth docking, which is labor-intensive and wastes a lot of time operating auxiliary devices.

[0005] Therefore, the known I-beam butt welding method has the above-mentioned inconveniences and problems. Utility Model Content

[0006] The purpose of the utility model is to provide a simple, safe and reliable I-beam butt welding fixing device.

[0007] To achieve the above purpose, the technical solution of the utility model is:

[0008] A fixing device for butt welding of I-beams, comprising a double-jointed splint body, wherein:

[0009] The double-jointed plywood body comprises two steel plates, which are rectangular steel plates. Each rectangular steel plate is provided with eight through holes. The two rectangular steel plates are symmetrically arranged. A screw is provided in each through hole. A nut is provided at one end of the screw. When the double-jointed plywood fixing device is used, the two ends of the two I-beams to be welded can be clamped in the middle of the double-jointed plywood.

[0010] The fixing device for butt welding of I-beams of the utility model can be further implemented by adopting the following technical measures.

[0011] The aforementioned I-beam butt welding fixing device, wherein the rectangular steel plate is made of Q235.

[0012] The aforementioned I-beam butt welding fixing device, wherein the rectangular steel plate has a size of ≥310×500mm and a thickness of ≥10mm.

[0013] The aforementioned I-beam butt welding fixing device, wherein the screw diameter is ≥16 mm.

[0014] In the aforementioned I-beam butt welding fixing device, the through hole is an oblong hole, which is convenient for the screw to align and tighten.

[0015] After adopting the above technical solution, the fixing device for butt welding of I-beams of the utility model has the following advantages:

[0016] 1. It solves the problem of fixing I-beams during butt welding, can firmly fix the heavy I-beams to be butt welded, and is convenient for welding operation;

[0017] 2. It is easy to operate and can be used repeatedly, which can improve the efficiency and construction quality of welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a double-jointed plywood according to an embodiment of the utility model;

[0019] Figure 2 It is a fixed cross-sectional view of a double-jointed plywood according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the use status of the double-jointed plywood according to an embodiment of the utility model.

[0021] In the figure: 1 nut, 2 steel plate, 3 screw, 4 I-beam, 5 oblong hole. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the embodiments and the accompanying drawings.

[0023] Example 1

[0024] Please refer to Figure 1-3 The utility model of the fixing device for butt welding of I-beams comprises a screw nut 1, a steel plate 2, and a screw 3, wherein the screw diameter is 16 mm, the screw nut 1 matches it, and the screw length is determined according to the height of the I-beam 4 to be fixed; the steel plate 2 used as a clamping plate is made of Q235 steel plate, with a thickness of 10 mm, a width of 310 mm, and a length of 500 mm. The through hole of the steel plate 2 is an oblong hole 5, which is convenient for the screw 3 to be aligned and tightened.

[0025] The method for using the fixing device for butt welding of I-beams of the utility model is as follows: two I-beams 4 to be butt-welded are placed in position; a double-jointed splint is pressed against the I-beam, and a middle opening is aligned with the weld seam of the I-beam wing plate; eight screws and screw nuts are tightened in sequence, so that the I-beam joints are completely aligned and stable; and the I-beam web and wing plate are butt-welded respectively.

[0026] The utility model has substantial characteristics and remarkable technical progress. The fixing device for butt welding of I-beams of the utility model has a simple structure and is easy to manufacture, solves the problem of keeping the welded parts stable and firm, and is easy to use.

[0027] The above embodiments are only for the purpose of illustrating the present invention, but not for limiting the present invention. A person skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A fixing device for butt welding of I-beams, comprising a double-jointed plywood body, characterized in that: The double-jointed splint body comprises two steel plates (2), the two steel plates are rectangular steel plates, each of the rectangular steel plates is provided with eight through holes, the two rectangular steel plates are symmetrically arranged, each through hole is provided with a screw (3), and a nut (1) is provided at one end of the screw. When the double-jointed splint fixing device is used, the two ends of two I-beams (4) to be welded can be clamped in the middle of the double-jointed splint.

2. The fixing device for butt welding of I-beams according to claim 1, characterized in that: The rectangular steel plate is made of Q235.

3. The fixing device for butt welding of I-beams according to claim 1, characterized in that: The rectangular steel plate has a size of ≥310×500 mm and a thickness of ≥10 mm.

4. The fixing device for butt welding of I-beams as claimed in claim 1, characterized in that: The screw diameter is ≥16 mm.

5. The fixing device for butt welding of I-beams as claimed in claim 1, characterized in that: The through hole is an oblong hole (5), which facilitates the alignment and tightening of the screw.

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