A mechanism for grinding the thermal insulation layer of a rocket engine shell

Abstract

The invention discloses a grinding mechanism for a heat insulating layer of a rocket engine shell. The grinding mechanism is characterized by comprising a worm and gear transmission pair, a cylindrical gear transmission pair, a conical gear transmission pair, an air cylinder, a worm servo motor, a spindle servo motor and a tool rest, wherein a tool spindle motor realizes rotary motion during tool cutting and processing by virtue of a transmission shaft and a bevel gear pair, and swing of a tool is realized by virtue of the worm and gear transmission pair, so that grinding processing on the surface of the heat insulating layer of the shell is realized. The grinding mechanism disclosed by the invention has the characteristics that motion flexibility of a grinding tool is high, the diameter range of the processed shell is great, the complex inner surface of the shell can be processed, and the stable operation of the mechanism is reliable. In order to realize the grinding process for the heat insulating layer of the rocket engine shell, the invention provides an efficient and stable mechanism.

Description

technical field [0001] The invention relates to the technical field of grinding and processing the inner wall of a shell with complex shapes, in particular to a processing device for grinding the inner wall of a solid rocket motor shell heat insulation layer. Background technique [0002] The solid rocket motor is an important power equipment in the field of aerospace engineering. The design and manufacture of the thermal insulation layer on the inner wall of the engine shell is very important to the performance and safety of the rocket motor. Due to the particularity of the manufacturing process and application occasions of the engine casing, the heat insulation layer of the inner wall needs to be polished. Due to the irregular curved surface of the heat insulation layer and the high elasticity of the heat insulation layer material, the current heat insulation layer grinding still uses The manual operation method not only has low efficiency, high labor intensity, and harsh ...

AI Technical Summary

Problems solved by technology

Due to the special manufacturing process and application occasions of the engine casing, the heat insulation layer of the inner wall needs to be polished. Due to the irregular curved surface of the heat insulation layer and the high elasticity of the heat insulation layer material, the current heat insulation layer grinding still uses The manual operation method not only has low efficiency, high labor intensity, and harsh working environment, but also makes it difficult to ensure the uniformity of the grinding process, resulting in the scrapping of the engine casing and causing great losses

Images