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An integral forming device and forming method for the bottom of a spacecraft fuel storage tank

An integral forming and spacecraft technology, applied in the field of spacecraft storage tank forming technology, can solve the problems of poor quality of the bottom of the spacecraft fuel storage tank, and achieve the effect of increasing the payload

Active Publication Date: 2019-07-16
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The problem to be solved by the present invention is that the quality of the bottom of the spacecraft fuel storage tank formed by the prior art is poor. In order to solve the problem, the present invention provides an integral forming device and a forming method for the bottom of the spacecraft fuel storage tank

Method used

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  • An integral forming device and forming method for the bottom of a spacecraft fuel storage tank
  • An integral forming device and forming method for the bottom of a spacecraft fuel storage tank
  • An integral forming device and forming method for the bottom of a spacecraft fuel storage tank

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Embodiment Construction

[0022] Hereinafter, the present invention will be further described in conjunction with the drawings and embodiments.

[0023] Such as figure 2 As shown, the overall forming device for the bottom of the spacecraft fuel tank provided by the present invention includes: a press system 1, a punch 2, a blank holder 3, a liquid-filled chamber 4, and a large-volume liquid pressure control system 5. The liquid-filled chamber 4 is filled with liquid, and the sheet material is covered on the top of the liquid-filled chamber 4, and the sheet material is pressed by the blank holder 3; , The sheet is deep-formed under the support of liquid pressure.

[0024] The movement speed and direction of the punch are controlled by the press system 1 . In this embodiment, the press system adopts a 10,000-ton ordinary double-acting hydraulic press to provide driving force for deep drawing of large box bottoms. The shape of the punch is determined according to the size of the bottom of the spacecra...

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Abstract

The invention discloses an overall shaping device for the box bottom of a spacecraft fuel storage box and a shaping method for the same. The overall shaping device for the box bottom of the spacecraft fuel storage box comprises a pressing machine system, a convex die, a liquid filling room, an edge pressing ring and a large-volume liquid room pressure control system, wherein the liquid filling room is full of a liquid, and the top of the liquid filling room is covered by a plate material and fixed by the edge pressing ring; and a convex face of the convex die directly faces the plate material, and the plate material is pulled deeply and formed under high-pressure supporting of a fluid during downward motion of the convex die. The overall shaping device for the box bottom of the spacecraft fuel storage box has high rigidity and high bearing force.

Description

technical field [0001] The invention relates to a forming process of a spacecraft fuel tank, in particular to an integral forming device and a forming method for the bottom of a spacecraft fuel tank. Background technique [0002] The bottom of the spacecraft fuel storage tank is a large deep cavity and thin-walled component. The diameter of a typical active launch vehicle storage tank reaches 3350mm. It is made of heat-treated aluminum alloy with a wall thickness of 4-6mm. It is a space ellipsoidal surface part. At present, the aerospace field adopts the traditional "block forming + assembly tailor welding" method, such as figure 1 As shown, after the top cover is pressed and the melon petals are shaped, multiple pieces are tailor-welded to form an ellipsoidal crown, and then combined with the profile frame. [0003] This tailor-welded structure has problems such as low dimensional accuracy, heavy workload, low material utilization rate, limited weight reduction, poor struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D26/021B21D26/027B21D24/00
Inventor 孟光郭立杰宿国友苑世剑徐永超胡蓝
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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