Quick-detachable large storage tank circular seam automatic welding inner support device

Abstract

The invention discloses a circular-seam automatic-welding inner-supporting device for a quick-disassembly-type large-scale storage tank. The device comprises an adjustable clamping shaft base arranged horizontally, a long support rod and a short support rod, wherein one end of the long support rod passes through a short stroke cylinder and is connected with an outer-arc-shaped support block, and one end of the short support rod passes through a long stroke cylinder and is connected with an inner-arc-shaped support block; after the short stroke cylinder and the long stroke cylinder support the outer-arc-shaped support block and the inner-arc-shaped support block to open, the arc-shaped surfaces of the outer-arc-shaped support block and the inner-arc-shaped support block are positioned at the same circumference, and a gap is arranged between the outer-arc-shaped support block and the adjacent inner-arc-shaped support block. According to the circular-seam automatic-welding inner-supporting device, two groups of gas paths are used to control two groups of cylinders with different lengths respectively to achieve the independent telescopic movements of the outer-arc-shaped support block and the inner-arc-shaped support block. The circular-seam automatic-welding inner-supporting device has the advantages of being light in weight, reliable in rigidity, quick, simple and convenient to disassemble, stable and reliable in process of jacking and loosening, adjustable in jacking pressure of seam welding, and capable of being assembled repeatedly to use, and the device can meet the mass production of large-scale storage tanks and improve the welding efficiency.

Description

technical field [0001] The invention relates to a welding seam internal support device, in particular to a quick-detachable large storage tank circular seam automatic welding internal support device. Background technique [0002] The large storage tank is the main component of a large spacecraft, and it is mainly formed by welding the cylinder section, the head, the flange and its pipeline. In order to meet the welding quality requirements of the automatic welding of the circular seam of a large storage tank, when performing the circular seam welding, the weld seam must be tightened with the help of the inner support equipment, so that the welding circular seam forms a complete circle, in order to meet the requirements of the storage tank ring seam. Seam welding requirements; at the same time, since the storage tank is a semi-closed container after forming, the welded inner support device must realize the function of being disassembled and assembled at any time. In the larg...

AI Technical Summary

Problems solved by technology

In the large-scale storage tank girth welding process, the traditional internal support device mostly uses the screw rotation method to tighten the weld seam, and the support block is welded by pipe fittings, and there are many structural nodes to be dismantled. This kind of device is disassembled slowly and labor-intensive. The operation is cumbersome, the reliability is poor, and the efficiency is low, which cannot meet the needs of new production tasks.

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