Multi-material composite stepped shaft, auxiliary tool and cylindrical grinding machining method

Abstract

The invention relates to the technical field of aerospace engine technical tests, and discloses a multi-material composite stepped shaft, an auxiliary tool and a cylindrical grinding machining method.The multi-material composite stepped shaft, the auxiliary tool and the cylindrical grinding machining method have the advantages that the optimal precision and coaxiality are guaranteed, vibration ina rotating process is reduced, abrasion resistance is improved, and heat generated through friction is reduced. According to the multi-material composite stepped shaft, the auxiliary tool and the cylindrical grinding machining method, by adopting a two-end mode, a high-precision rubber sealing ball head with the grinding level meets a grinding requirement, a wear-resistant composite material anda base material are simultaneously ground on an outer circle surface, the optimal precision and coaxiality are guaranteed, so that the vibration in the rotating process is reduced, the abrasion resistance is improved, the heat generated through the friction is reduced, the energy loss is reduced, the service life of products is prolonged, and the safety is improved; through the adoption of a stepped double-grinding wheel mechanism, the products are simultaneously ground, it is guaranteed that the outer circle precision in the same direction is kept highly consistent, and the precision of the products is improved; moreover, the roller type auxiliary tool is adopted, the mount is convenient, the manufacturing cost is low, and the multi-material composite stepped shaft, the auxiliary tool andthe cylindrical grinding machining method are convenient and practical.

Description

technical field [0001] The invention relates to the technical field of aerospace engine technology test, in particular to a multi-material composite stepped shaft, auxiliary tooling and cylindrical grinding processing method. Background technique [0002] At present, in the field of aerospace, due to the advancement of technology, the requirements for multi-functional products are increasing, and the requirements for high-performance products are increasing. Many functional parts require multiple materials to achieve, and many parts require a combination of multiple materials. , so as to achieve a function that cannot be realized by a single material, and combine the functions of different materials to achieve high performance that cannot be achieved by conventional materials. For example, in some sealing fields, high-performance products that need to be sealed cannot be achieved by conventional materials Complete, and to ensure a coaxiality between different materials, it n...

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Problems solved by technology

[0003] Conventional cylindrical grinding products use thimbles to hold the two ends of the product and then carry out cylindrical grinding, but for products with both ends sealed rubber, it is necessary to design auxiliary tooling, and the auxiliary tooling must be low-cost and practical. Conve

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