Welding device and method for corrugated expansion joint of tank body of petrochemical container

Abstract

The invention discloses a petrochemical container tank corrugated expansion joint welding device and method.The petrochemical container tank corrugated expansion joint welding device comprises a bottom plate, a top plate and a welding mechanism arranged between the bottom plate and the top plate, the bottom plate and the top plate are connected through four rodless air cylinders, and the four rodless air cylinders are sleeved with a first mounting plate; a first sliding groove of an annular structure is formed in the first mounting plate, the welding mechanism is arranged on the first mounting plate and slidably connected with the first sliding groove in the inner side of the first mounting plate, welding and grinding devices are mounted at the top and the bottom of the first mounting plate correspondingly, and the two welding and grinding devices can move up and down in the vertical direction relative to the first mounting plate. And the two welding and polishing devices and the welding mechanism keep rotating synchronously. According to the automatic welding device, automatic welding of the bellow expansion joint can be achieved, the position of a weld skin weld joint can be automatically polished in the welding process, the manual welding time and the manual polishing time are greatly saved, and the cost is saved while the efficiency is improved.

Description

technical field [0001] The invention relates to the field of welding devices, in particular to a welding device and method for a corrugated expansion joint of a petrochemical container tank body. Background technique [0002] The expansion joint is a flexible structure arranged on the container shell or pipeline in order to compensate for the additional stress caused by temperature difference and mechanical vibration. During the processing of the expansion joint, the bellows and the flange need to be connected together by welding. However, in the prior art, the flange and the bellows are usually fixed in advance, and then the connection between the flange and the bellows is welded by manual work. The production and processing quality of corrugated expansion joints. This method not only has low operation efficiency, but also the processing quality of the corrugated expansion joint mainly depends on the professional skills of workers, and its quality cannot be effectively gu...

AI Technical Summary

Problems solved by technology

This method not only has low working efficiency, but also the processing quality of the corrugated expansion joint mainly depends on the professional skills of the workers, and its quality cannot be effectively guaranteed. In view of this, the present invention relates to a corrugated expansion joint for petrochemical container tanks Welding device and method

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