Rocket storage tank bottom integral circular ring forming method

A forming method and ring technology, applied in the field of aerospace launch vehicles, can solve the problem that the blank parts cannot be directly applied to the bottom of the tank of the launch vehicle, and achieve the effects of reducing stress deformation, improving adaptability, and improving quality stability.

Active Publication Date: 2021-08-31
浙江蓝箭航天空间科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to limitations in technology, equipment, processes, etc., integrally formed blanks cannot be directly applied to the welding of the bottom of the launch vehicle tank, and the inner and outer surfaces of the blank must be machined separately

Method used

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  • Rocket storage tank bottom integral circular ring forming method
  • Rocket storage tank bottom integral circular ring forming method
  • Rocket storage tank bottom integral circular ring forming method

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Embodiment Construction

[0046] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. Spatially relative terms such as "below", "beneath", "under", "lower", "above", "on", "higher", etc. are used to facilitate description to explain the relative The orientation of two elements means that these terms are intended to encompass different orientations of the device in addition to orientations other than those shown in the figures. In addition, for example, "one element is on / under another element" may mean that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, sections, etc. and should not be taken as limitations. Similar terms refer to similar elements throughout the description.

[0047] The machining of the overall circular ring at the bo...

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Abstract

The invention provides a rocket storage tank bottom integral circular ring forming method. The rocket storage tank bottom integral circular ring forming method at least comprises the following steps that a plurality of outwards-turned corner pieces are arranged along the edge of the bottom of a large end of a blank circular ring, the corner pieces of the blank circular ring are clamped to a combined tool, the blank circular ring is supported and fixed through the combined tool, an inner molded surface of the blank circular ring fixed to the combined tool is subjected to rough turning, then finish turning is conducted on the inner molded surface of the blank circular ring subjected to the rough turning procedure, after the blank circular ring subjected to the finish turning procedure is detached from the combined tool, an outer molded surface turning procedure and a circular hole machining procedure are conducted respectively, and finally the formed rocket storage tank bottom whole circular ring is obtained. According to the rocket storage tank bottom integral circular ring forming method, irregular deformation in the product inner molded surface machining process can be effectively avoided, the subsequent turning difficulty of an outer molded surface is reduced, the same reference is adopted in the product machining process, and high-efficiency, high-precision and high-quality manufacturing of the box bottom integral circular ring is achieved.

Description

technical field [0001] The invention relates to the technical field of aerospace launch vehicles, in particular to a method for forming an integral circular ring at the bottom of a rocket tank. Background technique [0002] With the continuous acceleration of the space development process and the continuous development of aerospace industry technology, as the only "space-earth" transportation tool, various technologies of the launch vehicle are also rapidly innovating and iterating. In order to adapt to the industrialization of launch vehicles, the manufacturing process of products is also developing in the direction of precision, modularization and systematization. [0003] The bottom of the launch vehicle storage tank is a large-diameter thin-walled ellipsoid shell, and its material is generally made of heat-treatable aluminum alloy sheet, and the ring at the bottom of the box is usually obtained by integrally forming the aluminum alloy sheet. However, due to limitations ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B5/00B23B25/06
CPCB23B5/00B23B25/06
Inventor 张朋朋马存强
Owner 浙江蓝箭航天空间科技有限公司
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