Birdcage type rocket engine shell winding and forming die and manufacturing method thereof

Abstract

The invention relates to a birdcage type rocket engine shell winding and forming die. The die is composed of a shell, a core shaft, frames, supporting mechanisms and sealing head positioning devices,wherein the core shaft is in a sectional type, and is only arranged at the two ends of a shell sealing head, the multiple frames are arranged, all the frames are parallel to one another and are the same in structure, frame edge strips are fixed to the shell, the shell is fixed through the sealing head positioning devices, the supporting mechanisms are connected with the shell and the core shaft, and are only arranged at the two ends of the shell sealing head. The die is applied to mechanical forming, forming of an ultra-large type rocket combustion chamber shell or other barrel structures is realized, and the integral forming technology of the world ultra-large type rocket combustion chamber shell is broken through for the first time; the die is high in precision, a flexible layer betweenthe die and a product is removed, and net size forming is realized; and moreover, the die is simple in structure, convenient to assemble and disassemble, reliable in connection, large in rigidity, small in deformation, light in weight and low in cost.

Description

technical field [0001] The invention relates to the technical field of the aerospace industry, in particular to a winding molding mold for a birdcage rocket engine casing and a preparation method thereof. Background technique [0002] With the rapid development of the aerospace industry, the demand for the rocket's carrying capacity is getting higher and higher. Reducing the weight and increasing the volume have become the main direction of the rocket engine casing. High-performance carbon fiber composite material is a new type of rocket engine shell manufacturing material. Under the condition of equal strength, the weight is one-third to one-half of the metal material. The super-large carbon fiber composite rocket engine shell (diameter exceeds 4 meters, and the length exceeds 20 meters) there is no one-piece molding technology in the world at present. If it is successfully developed, it can not only greatly reduce the launch cost, but also effectively increase the launch d...

AI Technical Summary

Problems solved by technology

If the existing winding mold structure is applied to the winding molding of super-large cylinders, the mold will be seriously deformed during use due to insufficient strength and rigidity and too much weight, which will not meet the precision requirements of the product, or even It is not conducive to product molding and affects the subsequent use of molds

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