Welding device for welding vertical girth seam of pressure vessel

Abstract

The invention relates to a welding device for welding vertical circular seams of a pressure container; the welding device comprises a base, a jack, a rotating device, a locating device, a pressure container protection device, a welding gun clamp device, a welding gun and a control box, wherein the jack is arranged at the side under the base; the rotating device comprises a rotary platform, a slewing bearing, a rotary bottom frame and a speed reducing motor; the speed reducing motor can drive the rotary platform to stably rotate at a low speed under the carrying condition; the locating device is fixedly arranged at the center of the rotary platform; the pressure container protection device comprises a bracket support and a rolling device; the welding gun clamp device is arranged beside the rotating device; the welding gun clamp device is provided with a welding gun cross adjustment rack; the welding gun is fixedly arranged on the welding gun cross adjustment rack; and the control box is arranged beside the base, and is connected with the speed reducing motor and the welding gun by leads. By adopting the mechanical automation welding operation, the welding device is especially suitable for welding large and ultra-large type pressure containers; and the welding device is high in welding quality and working efficiency, and the production labor cost is reduced.

Description

technical field [0001] The invention relates to a welding device for welding the vertical circular seam of a pressure vessel, which realizes the automatic welding of the head part of the pressure vessel, and belongs to the technical field of mechanical equipment manufacturing. Background technique [0002] In the welding process of the pressure vessel weld, the vertical girth weld of the product head is very important for the pressure vessel. At present, the pressure vessels produced by many pressure vessel manufacturers are bulky and heavy. When welding, the girth weld of the product head is not allowed to be operated horizontally. In order to meet the requirements of the welding process, the vessel is required to be at a certain inclination angle. At present, in the welding process of this type of vertical circular seam, enterprises generally use manual welding without the help of related auxiliary welding equipment, which not only has low production efficiency and high la...

AI Technical Summary

Problems solved by technology

At present, in the welding process of such vertical circular seams, enterprises generally adopt manual welding methods without the help of related auxiliary welding equipment. Not only the production efficiency is low, the labor intensity of workers is high, but also the welding quality of the welds is difficult to guarantee. There are many welding defects, which increases the number of weld repairs, and the enterprise often affects the production plan of the entire enterprise because of the welding quality of this key weld. , which has more restrictions on the size and length of the weldment, and is generally suitable for circular seam welding of small workpieces

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