Novel petroleum pipeline circumferential seam welding device

Abstract

The invention relates to a welding device, in particular to a novel petroleum pipeline circumferential seam welding device. The novel petroleum pipeline circumferential seam welding device comprises a welding gun, a lifting mechanism, an adjustment block, a rotating mechanism, a right half gear, a left half gear, a lower clamping ring, a bearing mechanism, a box body, a power supply module, a control module, a stepping motor, a coupling, bearing end covers, a transmission shaft, deep groove ball bearings, a driving gear, a gear check ring, a locking ring, a box cover and the like; the position of the welding gun is adjusted by adopting screw driving; the welding gun is driven to act through gear transmission so as to complete a circumferential seam welding process; a welding mode that the stepping motor does not move and the welding gun moves around a pipeline is realized ingeniously by positioning and rotating the right half gear and the left half gear in an annular groove which is formed by matching an upper clamping ring annular groove and a lower clamping ring annular groove; a circumferential seam welding process of a petroleum pipeline can be completed by only one-time clamping; the welding quality can be ensured better compared with that of a welding mode comprising a plurality of times of welding of a welding process.

Description

technical field [0001] The invention relates to a welding device, in particular to a novel oil pipeline circular seam welding device. 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, due to th...

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

Images