All-position automatic welding machine for pipeline

Abstract

The invention discloses an all-position automatic welding machine for a pipeline. The machine comprises an annular rail installed in the circumferential direction of the pipeline, a walking mechanism, a welding mechanism and a wire feeding mechanism, the walking mechanism, the welding mechanism and the wire feeding mechanism are laid in the circumferential direction of the pipeline, and the welding mechanism comprises a welding gun installed on an installation base, a first motor and a second motor. The first motor and the second motor are arranged in the axial direction of the pipeline, an output shaft of the first motor is connected with a lead screw, the lead screw is sleeved with a nut, a driving rod is parallel to the lead screw, one end of the driving rod is connected with the nut through a connecting piece, and the other end of the driving rod extends out of a second shell, is connected with a mounting block and is used for driving the mounting block to move. According to the all-position automatic welding machine for the pipeline, all-directional automatic welding of the pipeline in the circumferential direction is achieved, so that the machine always operates close to the pipeline in the using process, the welding precision can be improved, and the all-position automatic welding machine can be suitable for a welding scene that the distance between pipelines is smaller.

Description

technical field [0001] The invention relates to an all-position automatic welding machine for pipelines, which belongs to the technical field of pipeline welding equipment. Background technique [0002] With the advancement of industrial automatic control research, corresponding technical support has been provided for my country's pipeline engineering construction. Pipeline automatic welding technology has gradually become the mainstream technology of pipeline welding, making my country's oil and gas pipeline construction develop in the direction of high efficiency. Pipeline automatic welding means that the welding trolley moves around the pipe wall along the transmission track to automatically weld the outer ring seam of the pipe, which can effectively improve the welding efficiency and reduce the labor intensity of the welder. Pipe welding is the most important link in the pipeline construction process. It is not only the most basic guarantee of pipeline construction quali...

AI Technical Summary

Problems solved by technology

[0003] At present, there are devices for automatic welding of pipelines. However, these designs have the following problems and shortcomings: some devices cannot move independently, and each part that needs to be welded must be manually installed, which is time-consuming and laborious; some devices are not highly automated and cannot guarantee welding. The efficiency and welding quality of the process, and the overall height and volume are too large. When the gap between the pipes is small, it will collide with the pipes next to it, resulting in the failure to complete the welding work normally.

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