Numerical control machine tool fault tracing method based on meta-action

Abstract

The invention discloses a numerical control machine tool fault tracing method based on element actions, which comprises the following steps: 1) performing structured decomposition on a fault tracing object according to'function-motion-action / support 'to obtain a target element action, and judging an element action fault mode according to the motion performance of an output part of an element action unit; 2) based on a mapping matrix between a meta-action fault mode and basic parameters of a meta-action unit and a supporting unit, basic parameter change causing the meta-action fault is determined; 3) analyzing all possible direct fault reasons and fault targets which cause the change of the basic parameters of the meta-action; and 4) determining the most possible direct fault cause causing the fault among a plurality of possible causes, and positioning the fault target spot. The method can help maintenance personnel to accurately realize fault tracing and fault target spot positioning of the numerical control machine tool, and can effectively improve the fault diagnosis efficiency.

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