Numerical control machine tool fault monitoring and diagnosis system based on data mining

Abstract

The invention discloses a numerical control machine tool fault monitoring and diagnosis system based on data mining. The system comprises a data management module, a data interpretation module, an intelligent fault diagnosis module, a data mining module and a man-machine interaction module. The data management module supports real-time importing of current data and batch importing and exporting ofhistorical data; the data interpretation module performs preprocessing, feature extraction and symptom extraction on the data; the intelligent fault diagnosis module is used for reasoning system-level faults by synthesizing the obtained symptoms and diagnosis knowledge; the data mining module autonomously mines an unknown fault mode alarm criterion and a diagnosis knowledge rule, and updates an alarm criterion library and a diagnosis knowledge base; the man-machine interaction module realizes setting control of fault monitoring and diagnosis processes and real-time display of results; the system has the advantages that machine tool operation is fully utilized to naturally generate data, deep modeling of a machine tool with a complex mechanism is not needed, the knowledge bottleneck of a traditional expert system type diagnosis system is broken through, the diagnosis process is automatic, and diagnosis is rapid and accurate.

Description

technical field [0001] The invention relates to the field of fault diagnosis of numerical control machine tools, in particular to a data mining-based fault monitoring and diagnosis system of numerical control machine tools. Background technique [0002] The higher and higher requirements for high-end military products on the quality of workmanship, as well as the higher and higher requirements for mass production capabilities of high-intensity operations and difficult model tasks, highlight the urgent need to strengthen the development and application of equipment. Machine tools are known as the "mother of industry" and represent the strength of a country's manufacturing capabilities. At present, my country's domestic high-end CNC machine tools can replace imports to solve the problem, but there is still a gap with foreign technologies in terms of key technologies such as machine tool reliability and precision maintenance. [0003] Fault diagnosis technology of CNC machine ...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the real-time, intelligent and autonomous fault monitoring and diagnosis requirements of high-end CNC machine tools for precision machining, and is designed to solve the problems of real-time, intelligent and autonomous fault monitoring and diagnosis of CNC machine tools

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