Automatic submerged arc welding device for longitudinal seams in steel tubes

Abstract

The invention relates to an automatic submerged arc welding device for longitudinal seams in steel tubes. The device comprises a machine head, an automatic wire feeder, a support arm, a running gear, a welding gun, a wire reel support, an air compressor, a flux conveyer, a welder, a flux recycling machine and a control box, wherein the automatic wire feeder is fixedly arranged in the machine head; the wire reel support is arranged on one side of the outside of the machine head; one end part of the support arm is fixedly arranged on the other side of the machine head; the other end part of the support arm is fixedly provided with a support wheel frame; the welding gun is arranged in the support wheel frame; the welder, the air compressor, the flux conveyer and the flux recycling machine are adjacent to the machine head respectively; the welder is connected with the welding gun through a wire; the flux conveyer is connected with the air compressor through a communicating tube; the control box is arranged on the outer side of the running gear. The automatic submerged arc welding device is simple in structure and convenient to operate, time and labor are saved, the labor intensity is reduced, a welding operator is not required to enter a steel tube to implement other welding methods, harmful gas is prevented from harming the operator, and the welding quality of welding lines is improved.

Description

technical field [0001] The invention relates to an automatic submerged arc welding device for the inner longitudinal seam of a steel pipe, in particular to an automatic submerged arc welding device for realizing the inner weld of the longitudinal seam of a steel pipe. Background technique [0002] At present, in the iron tower industry, the internal longitudinal seam submerged arc welding of steel pipes generally adopts the welding process of single-sided welding and double-sided forming, that is, the welder performs manual bottom welding first, and then submerged arc cover welding. When it is thick, it is difficult to guarantee the quality of internal welding of steel pipe welds, and it is time-consuming and laborious, and the production efficiency is low. At present, there is no automatic submerged arc welding device for internal welds of steel pipes with different diameters. Contents of the invention [0003] The technical problem to be solved by the present invention i...

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Problems solved by technology

[0002] At present, in the iron tower industry, the internal longitudinal seam submerged arc welding of steel pipes generally adopts the welding process of single-sided welding and double-sided forming, that is, the welder performs manual bottom welding first, and then submerged arc cover welding. When it is thick, it is difficult to guarantee the quality of welding inside the steel pipe weld, and it is time-consuming and laborious, and the production efficiency is low. At present, there is no automatic submerged arc welding device for the inner weld of steel pipes with different diameters.

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