Tooling and method for connecting rigid heat protection layer to non-enclosed equal-diameter revolving cabin section

Abstract

The invention relates to the technical field of thermal protection materials, in particular to a tooling and a method for sleeved connection of a rigid thermal protection layer to a non-closed equal-diameter rotary body section. The tooling includes a base plate, a front extension part, a rear extension part, a plurality of columns and at least one sliding die. One end of the column is vertically connected to the floor plate. It is installed on the column, and can move along the axial direction of the column, and can make certain adjustments in the radial direction, which can ensure the overall contour of the thermal protection layer within a certain range, and can avoid the interference area, so as to avoid damage to the cabin Or thermal protection layer, in addition, in the process of installing the thermal protection layer, without additional positioning tooling, the thermal protection layer can be efficiently and accurately sleeved on the non-closed equal-diameter rotor cabin, and the structure is simple and the operation is convenient. The method uses the tooling of the present invention for auxiliary installation, is simple to implement, has strong operability, and is suitable for mass production.

Description

Tooling and method for sleeve of rigid thermal protection layer on non-enclosed equal-diameter rotary body section technical field The present invention relates to the technical field of thermal protection materials, in particular to a kind of rigid thermal protection layer sleeved on the non-closed equal diameter Tooling and method of revolving body cabin. Background technique [0002] When a hypersonic vehicle is cruising at high speed for a long time in the atmosphere, the surface will be subjected to more severe thermal loads. and air scouring. The thermal insulation scheme of the aircraft in the early stage is mainly to prepare the thermal protection material in blocks, and then be bonded to the aircraft surface piece by piece. noodle. On the one hand, the problem with this method is that gaps are inevitably generated at the splices of the thermal protection materials, and more heat is generated. The amount will be transferred to the interior of the aircraft, w...

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Problems solved by technology

The problem with this method is that, on the one hand, there will inevitably be gaps at the joints of the heat protection materials, and more heat will be transferred to the interior of the aircraft, which will bring hidden dangers to the normal operation of components; on the other hand, when bonding Each piece of thermal protection material needs to be aligned and positioned, and has high requirements on the profile of the aircraft, and the assembly process is complex, difficult, and inefficient

Although this method avoids too many joints in the block scheme, there are still some problems: the preparation of the thermal protection layer and the preparation of the cold structure of the cabin cannot be carried out in parallel, and the thermal protection must be carried out after the processing of the cold structure is completed. In addition, when the thermal protection layer is prepared, the cabin section will experience temperature and pressure changes with the glue, and there is a certain risk. Once the cabin section is damaged, it will seriously affect the task progress of the product.

[0006] However, the non-enclosed equal-diameter revolving body section generally has a "C"-shaped cross section, and is generally made of machined or welded metal material. When welding is formed, the contour is difficult to guarantee, and there is a risk of out-of-tolerance, which may even cause The product is damaged, and for the cabin section of the equal-diameter rotary body, it is easy to scrape the glue between the thermal protection layer and the cabin during the socketing. How to efficiently and accurately connect the thermal protection layer to the non-closed equal-diameter rotary cabin section is an urgent problem to be solved

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