Health monitoring method for numerical control machine tool

Abstract

The invention discloses a health monitoring method for a numerical control machine tool, and the method comprises the steps: (1), executing a self-inspection G instruction, and collecting the operation state data; (2), building the mapping relation between the collected operation state data and the self-inspection G instruction, and forming an instruction domain mapping ensemble; (3), dividing the instruction domain mapping ensemble according to the self-inspection G instruction, extracting the instruction domain mapping under the self-inspection G instruction, obtaining the operation state data under the self-inspection G instruction, calculating an actual characteristic value according to the operation state data, comparing the actual characteristic value with a standard characteristic value, and obtaining a health index through calculation. The method improves the calculation basis of a key health index of the numerical control machine tool, the calculation method of the health index and the display mode of the health index, and can effectively solve a problem that the judgment of the health condition of the numerical control machine tool is not timely and accurate. Moreover, the obtained health index of the numerical control machine tool is displayed in a visualized manner, thereby improving the interaction effect of the numerical control machine tool with a person.

Description

technical field [0001] The invention belongs to the technical fields of numerical control systems and machine tools, and more specifically relates to a health monitoring method of a numerical control machine tool, which can be used for real-time monitoring and display of the health state of the numerical control machine tool. Background technique [0002] The reliability of machine tools, fault diagnosis and prediction, performance evaluation and maintenance support have received extensive attention from scholars at home and abroad. In order to ensure the safe and reliable operation of CNC machine tools, minimize downtime and prolong the working cycle of machine tools, a lot of research has been done on machine tool fault diagnosis methods at home and abroad. a direction of development. After-the-fact maintenance will not only cause great damage to the machine tool itself, but also cause losses to the enterprise and even threaten the personal safety of workers; regular main...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a health monitoring method for CNC machine tools, wherein the basis for calculating the health index of the key CNC machine tools, the calculation method of the health index, and the display of t

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