Automatic petroleum pipeline circular seam welding device

Abstract

The invention relates to a welding device, in particular to an automatic petroleum pipeline circular seam welding device. The automatic petroleum pipeline circular seam welding device comprises a pipeline clamping system, a power and control system, a welding gun clamping system and a welding gun. The pipeline clamping system is installed on a petroleum pipeline, the power and control system is installed on the pipeline clamping system, the welding gun clamping system is installed on the power and control system, and the welding gun is installed on the welding gun clamping system. The automatic petroleum pipeline circular seam welding device is directly installed on the petroleum pipeline in need of welding, the welding gun is driven to act through gear transmission so as to complete the circular seam welding process. The automatic petroleum pipeline circular seam welding device has the advantages of being simple and compact in structure, small in size, low in cost and high in automated degree. Welding can be stopped automatically through a contact type travel switch when a half circle is welded, the welding process is divided into two steps and completed through welding of the two half circles, and thus welding quality is improved. Spiral transmission is adopted for the welding gun clamping system to adjust the position of the welding gun, the distance between the welding gun and the petroleum pipeline can be adjusted precisely, and the welding quality of a circular seam is further improved.

Description

technical field [0001] The invention relates to a welding device, in particular to an automatic welding device for oil pipeline circular seams. Background technique [0002] At present, in the production process of oil pipelines, the joints between straight pipes and straight pipes, and between straight pipes and bent pipes are fixed by joint welding, while the ordinary welding device can only realize the horizontal plane or vertical plane direction by the welding torch according to the traveling mechanism. For the welding on the pipe fittings, it needs the welding torch to rotate around the workpiece to complete the welding, so the conventional welding device cannot effectively complete the welding of the pipe fittings. Although the large-scale high-precision welding device in the prior art can complete 360° ring welding through multi-axis linkage numerical control, its equipment cost and processing cost are high, which is not conducive to mass production. At the same time,...

AI Technical Summary

Problems solved by technology

[0002] At present, in the production process of oil pipelines, the joints between straight pipes and straight pipes, and between straight pipes and bent pipes are fixed by joint welding, while the ordinary welding device can only realize the horizontal plane or vertical plane direction by the welding torch according to the traveling mechanism. For the welding on the pipe fittings, it needs the welding torch to rotate around the workpiece to complete the welding, so the conventional welding device cannot effectively complete the welding of the pipe fittings

Although the large-scale high-precision welding device in the prior art can complete 360° ring welding through multi-axis linkage numerical control, its equipment cost and processing cost are high, which is not conducive to mass production. At the same time, due to the high equipment cost, It is also not conducive to the promotion of use in small and medium-sized enterprises

Traditional manual welding is limited by the space and location, and the welding temperature is high, which is prone to safety hazards during welding operations; at the same time, the welding quality of manual welding mainly depends on the worker's operating level, which is difficult to obtain reliable guarantees, so it is not conducive to mass production. Production and deployment in SMEs

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