Steel pipe positioned-welding device for industrial machinery and welding method

Abstract

The invention discloses a steel pipe positioned-welding device for industrial machinery and relates to the technical field of industrial machinery. The steel pipe positioned-welding device comprises afixing shell, wherein a fixing bracket is arranged at the bottom of an inner cavity of the fixing shell; a welding tank is connected with the opposite end surfaces of the fixing bracket; motors are arranged on the inner walls of both the left and right sides of the welding tank; rotating shafts are connected with the output ends of the motors; driving gears are connected with the other ends of the rotating shafts; two groups of fastening devices are movably connected with an inner cavity of the welding tank; driven gears are connected with the ends, close to the inner walls of the left and right sides of the welding tank, of the fastening devices; a hydraulic telescopic rod is arranged at the top of the inner cavity of the fixing shell; a welding gun is connected with the output end of the hydraulic telescopic rod; and a protective shell is arranged at the top of the inner cavity of the fixing shell. By adoption of the steel pipe positioned-welding device, the steel pipe welding precision can be guaranteed; furthermore, the stability of a steel pipe can be improved when the steel pipe is welded; the joint can be flatter during the steel pipe welding process; the grinding work andthe welding work can be completed by using one device; the operation procedure can be simplified; and the working efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of industrial machinery, in particular to a steel pipe positioning welding device and welding method for industrial machinery. Background technique [0002] Steel pipe is a tool commonly used in existing industrial machinery. Steel pipe can not only be used to transport fluid and powdery solids, exchange heat, manufacture mechanical parts and containers, but also be used as building materials. Steel pipe is an economical steel , not only light in weight, can save steel, simplify construction, but also reduce the area coated with protective layer, saving investment and maintenance costs. Steel pipes generally need to be butt welded together before use, but the positioning accuracy of existing steel pipe welding devices is not high. The butt joints are easy to loosen, and the existing steel pipes need to be polished after welding. The grinding requires additional devices, which is cumbersome to operate and re...

AI Technical Summary

Problems solved by technology

Steel pipes generally need to be butt welded together before use, but the positioning accuracy of existing steel pipe welding devices is not high. The butt joints are easy to loosen, and the existing steel pipes need to be polished after welding, which requires an additional device, which is cumbersome to operate and reduces work efficiency

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