Self-adaptive positioning method, system and equipment for blade film hole machining and storage medium

Abstract

The invention provides a blade film hole machining self-adaptive positioning method, system and equipment and a storage medium, and solves the problems that an existing method for overcoming the geometric information difference between a deformed blade and a theoretical blade cannot be matched with the actual corresponding relation of the deformed blade and the theoretical blade, manual intervention is needed, and automatic machining of a film hole is affected. According to the method, the position of the actual blade film hole relative to a clamp is obtained by analyzing the relative position between the actual appearance and a theoretical model after the blade is clamped and combining the blade deformation mapping relation, the actual clamping state of the clamp clamped on a machine tool is obtained through on-machine measurement, and therefore self-adaptive positioning of the actual blade film hole is achieved. According to the method, accurate positioning and analysis of the actual film hole are achieved, the clamping and positioning process of the blade and the clamp is simplified, the professional skill requirement for operators is lowered, and automatic operation of an intelligent film hole machining production line is supported.

Description

technical field [0001] The invention relates to the technical field of self-adaptive machining of air-film holes in aero-engine turbine blades, in particular to an adaptive positioning method, a positioning system, a control device and a computer-readable storage medium for machining of air-film holes in blades considering deformation. Background technique [0002] The service environment of turbine blades is harsh, and the working temperature is extremely high, which has exceeded the limit that their own materials can withstand, and is prone to high temperature creep, which has a significant adverse impact on the dynamic performance and service life of the aero-engine. Film cooling is a widely used turbine blade cooling technology, which can effectively isolate high-temperature gas and improve the high-temperature creep resistance of related components. [0003] The manufacturing accuracy of the air film holes, including geometric shape, position distribution and attitude d...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing method of overcoming the geometric information difference between the deformed blade and the theoretical blade, or the projection process does not consider the inherent relationship between the air film hole pose design intention and the theoretical blade model, and cannot match the actual correspondence between the two, or through Manual intervention seriously affects the technical problem of the automatic processing of air film holes. The present invention provides an adaptive positioning method, system, equipment and storage medium for blade air film hole processing.

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