Circular seam assembly and welding device for bearing type spherical storage tank

Abstract

The invention provides a circular seam assembly and welding device for a bearing type spherical storage tank. The circular seam assembly and welding device comprises a clamping rod, a connecting disc,a chassis, a support rod, a disc, an adjusting disc and an adjusting screw, wherein the clamping rod is welded with the connecting disc and is used for connecting a rotating device; a threaded rod isinstalled on the chassis and is connected with a threaded hole corresponding to a bearing storage tank; a groove is formed in the center of the chassis, so that the interference with a filler neck ofthe bearing storage tank is avoided; the height between the adjusting disc and the disc is adjusted by the adjusting screw, and the clamping range of the adjusting disc can be adjusted; and an arc surface is formed on the inner side of the adjusting disc, so that the inner side of the adjusting disc is tightly abutted with the bearing storage tank. The circular seam assembly and welding device has the advantages of the simple structure and convenience in installation, the bearing storage tank can be reliably and quickly connected with a headstock and tailstock rotating device, the roundness of the bearing storage tank can be corrected, and the welding dislocation meets technological requirements.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a girth welding device for a load-bearing spherical tank. , especially a girth welding device for large-diameter load-bearing spherical storage tanks. Background technique [0002] The load-bearing tank is the main load-bearing structure of the upper stage of the launch vehicle. The tank is composed of an upper hemispherical shell, an upper connecting ring, a lower hemispherical shell, a lower connecting ring and a load-bearing support. Automatic argon arc welding is adopted for the general butt joint girth welding of the storage tank. The upper and lower hemisphere components cannot be directly connected with the head and tail seat rotation device, and a special device is required to connect the storage tank and the head and tail seat. Moreover, due to the deviation between the actual roundness and the theoretical roundness of the hemispherical assembly, there is a large...

AI Technical Summary

Problems solved by technology

Moreover, due to the deviation between the actual roundness and the theoretical roundness of the hemispherical components, there is a large misalignment during welding, which affects the welding process and reduces the load-bearing capacity of the weld

[0003] According to the retrieval of existing technologies at home and abroad, most of the welding devices for spherical storage tanks are conventional welding fixtures at present, which do not have the adjustment function. If there is a certain deviation in the profile of the spherical storage tank, the clamping effect of conventional welding fixtures is not good.

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