Control method of welding system of composite pipe

Abstract

The invention proposes a control method for a welding system of a composite pipe. The composite pipe includes a first pipe and a second pipe whose axes coincide in the horizontal direction, wherein the diameter of the first pipe is larger than that of the second pipe, and the diameter of the second pipe is larger than that of the second pipe. A weld seam is formed at the junction of the first pipe and the second pipe, the welding system includes a welding torch, and the welding torch is equipped with at least one tungsten electrode. The composite pipes interfere with each other; control the welding torch to move vertically close to or at the height of the axis of the second pipe; keep the height of the welding torch unchanged, and control the welding torch to move horizontally toward the second pipe to the same height as the second pipe The welding seam is corresponding; the welding torch is controlled to move to the arc starting position in the vertical direction toward the side of the welding seam; and the welding seam is welded. The control method reduces the labor intensity of operators, improves the degree of welding automation, effectively ensures the positioning and even forming of welding seams, and improves welding efficiency.

Description

technical field [0001] The invention belongs to the field of industrial automation, and in particular relates to a control method for a welding system of a composite pipe. Background technique [0002] With the development of the times, in the field of automatic welding, people have put forward higher and higher requirements for automatic welding equipment, low intervention, high efficiency, low failure, high quality, etc. must be considered in the design of modern automation equipment. Usually, in the internal welding of composite pipe elbows, due to the irregular shape of the workpiece to be welded to varying degrees, the unavoidable processing accuracy, assembly accuracy, and assembly accuracy have been restricting the development of fully automated welding technology. . In order to solve this problem, before welding, the welding operator usually needs to observe the horizontal position and height position of the welding torch and the workpiece with the naked eye, and ad...

AI Technical Summary

Problems solved by technology

However, this method of controlling the relative position of the welding torch and the workpiece weld through human intervention has high requirements for welding operators, and it is difficult to control the amount of adjustment when adjusting the carriage. Gun collision or overshooting phenomenon occurs, the operation is cumbersome and takes a long time, the quality of weld formation is difficult to achieve precise control, and even welding deviation may occur, which may make the weld formation unsightly, or even cause the product to be scrapped. serious waste of cost

Images