Full-automatic welding machine for steel gas pipeline

Abstract

The invention relates to the technical field of pipeline welding, in particular to a full-automatic welding machine for a steel gas pipeline. The full-automatic welding machine comprises a track, a welding trolley and a welding gun. A driving mechanism is arranged on the welding trolley. An adjusting mechanism is fixedly arranged on the welding trolley. A welding gun bracket is arranged between the welding gun and the welding trolley. The welding gun is fixedly connected with the welding gun bracket. The adjusting mechanism can adjust the distance between the welding gun bracket and the welding trolley. The welding trolley is fixedly provided with a range sensor and a controller. The range sensor is used for measuring the distance from the range sensor to the connecting seam between a first pipeline and a second pipeline. The range sensor is used for transmitting an electric signal to the controller. When the numerical value measured by the range sensor exceeds the threshold value of the controller, the controller controls the adjusting mechanism to move so as to drive the welding gun bracket to get close to or far away from the weld seam. The full-automatic welding machine has theadvantages that the position of the welding gun can be adjusted in real time, the welding quality can be improved, and the mounting precision of the track can be reduced.

Description

technical field [0001] The invention relates to the technical field of pipeline welding, in particular to a fully automatic external welding machine for steel gas pipelines. Background technique [0002] In the process of natural gas transportation, gas pipelines must be used for transportation. The installation and welding of gas pipelines are an indispensable part of laying pipelines. For gas pipelines, the quality of welding directly affects the service life of gas pipelines. The speed of welding directly affects the engineering time of pipeline laying. In the current welding process of steel gas pipelines, the more advanced technology is to use a fully automatic external welding machine to weld the joints of the two pipelines. [0003] The existing fully automatic external welding machine includes a welding trolley, a track and a welding torch. The track is set on a pipe and is detachably and fixedly connected with the pipeline. The welding trolley is set on the track a...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above-mentioned prior art is that during the installation of the track, the concentricity between the track and the pipeline is required to be high, so that when the welding trolley gradually moves on the track, the gap between the welding torch and the pipeline joint can be ensured. The distance change will not be too large, otherwise it will affect the welding effect during welding

It is difficult to adjust the concentricity of the track and the pipeline, and it takes a long time

Images