Pipe welding device

Abstract

The invention discloses a pipe welding device which comprises a guide mechanism, an electric welding gun and an opening assembly mechanism. The guide mechanism comprises a disc, rollers fixedly arranged on the inner wall of the disc and two baffles arranged at the two ends of the disc; the at least three rollers are evenly distributed, a notch is formed in one of the two baffles, and a connecting plate fixedly connected with the disc is arranged under the notch; the electric welding gun is fixedly arranged on a connecting plate; the electric welding gun comprises a connecting cable; the connecting cable penetrates the notch and is coiled on the disc; each baffle is divided into two parts, locking clamps are fixedly arranged on the outer walls of the baffles, and the two parts of each baffle are connected through the corresponding locking clamp; and the opening assembly mechanism comprises a pipe clamping sleeve formed by two semi-pipe rings, a horizontal section connected with the pipe clamping sleeve and extending out from one side of the pipe clamping sleeve in parallel, an expanding section fixedly connected with the horizontal section and outwards expanding along the center axis of the pipe clamping sleeve and an adjusting nut used for connecting the two semi-pipe rings.

Description

technical field [0001] The invention relates to the field of pipeline welding, in particular to a pipeline welding device. Background technique [0002] In the construction of pipeline engineering, when welding two sections of pipelines into one section, manual welding is usually used at present. During pipeline piping and welding, it is necessary to ensure that the nozzles of the two pipes are concentric / aligned and the gap between the nozzles meets the parameter requirements of the welding procedure, so as to avoid quality problems such as impenetrable welds and excessive deviation of misalignment. However, in conventional pipeline piping and welding, construction personnel mainly rely on construction experience to realize the combination of two pipe cores through visual inspection and ruler measurement, and perform positioning welding. In this way, the nozzle gap and construction quality are greatly affected by human factors, so the alignment error of the pipeline is rel...

AI Technical Summary

Problems solved by technology

In this way, the nozzle gap and construction quality are greatly affected by human factors, so the pipe alignment error is relatively large, which in turn makes the quality of its positioning welding very unstable

And because the distance between the electric welding torch and the welding port is difficult to control during manual welding, it may lead to unstable welding quality; for novices, it is particularly difficult to control the distance between the electric welding torch and the welding port

During the welding process, the electric welding torch needs to move around the axis of the pipe, and the cable connected to the electric welding torch is easy to wind around the pipe and pull the electric welding torch, which makes the welding operation more inconvenient

Images