Equipment for additionally mounting bottom flange plate of ellipsoidal storage box

Abstract

The invention provides equipment for additionally mounting a bottom flange plate of an ellipsoidal storage box. The equipment comprises an inner supporting device; the inner supporting device comprises a rotary table and a plurality of supporting units, wherein the supporting units are distributed on the rotary table; each supporting unit comprises a radial sliding base; one side surface of the radial sliding base is arranged in a way of forming a certain included angle with the rotary table; the side surface is provided with a gradient sliding base; a supporting disc is arranged on the gradient sliding base; the supporting units correspond to flange holes one by one, wherein the flange holes are formed in different height positions of the bottom of the box; the supporting units perform composite motion via the radial sliding base and the gradient sliding base; the supporting disc of each supporting unit leans against the inner wall of the bottom of the ellipsoidal storage box around the flange holes corresponding to the supporting units; each supporting disc is provided with a threaded hole along the axis direction of the supporting disc and is also matched with a pressing column, a flange pressing plate and a pressing nut. The equipment for additionally mounting the bottom flange plate of the ellipsoidal storage box can be used for implementing welding of all flange plates by one-time clamping and is capable of guaranteeing the matching precision of the flange holes and the flange plates, thereby guaranteeing the welding precision of the flange holes and the flange plates.

Description

technical field [0001] The invention relates to the processing technology of rocket ellipsoid storage tanks, in particular to equipment for installing flanges at the bottom of ellipsoid storage tanks. Background technique [0002] The bottom of the rocket ellipsoid tank is generally welded by eight melon petals and a fork ring, and flange holes of different heights are opened on it according to the needs. After the flange holes are milled, they are matched to weld the flanges. , when welding, use a special fixture to clamp and position the bottom of the rocket ellipsoid storage tank, fix the relative position between the flange and the bottom of the tank by tightening the upper and lower pressure plates, and then let the worker hold the welding torch, using the "two-sided three-layer welding" process Do the welding. [0003] The following problems exist in the process of opening flange holes and welding flanges: [0004] The flange hole is drilled and reamed with a hand-he...

AI Technical Summary

Problems solved by technology

[0004] The flange hole is drilled and reamed with a hand-held pneumatic drill, which is very inefficient, and the matching precision between the flange hole and the flange plate is low, and the place with a large gap is easy to crack due to the release of residual welding stress after welding; some welding The seam is far away from the edge of the ellipsoidal box bottom, and it is difficult for workers to perform welding operations in a more comfortable body posture; manual back sealing welding is performed on the inner side of the box bottom, and the working environment is particularly harsh; manual welding has many times of arc start and end, which is prone to defects; The welding quality depends on the operating level and experience of the operator, and the quality of the weld is poor in stability

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