Numerical control machine tool cutter vibration signal detection system and detection method

Abstract

The invention discloses a numerical control machine tool cutter vibration signal detection system and detection method. The system comprises a vibration signal collection device, a data processing module and an analysis and judgment module; the vibration signal collection device is fixed on a numerical control machine tool cutter table and is used for detecting cutter vibration information and outputting corresponding detection signals to the data processing module; the data processing module is used for performing differential amplification processing on the detection signals, and outputtingdata to be analyzed to the analysis and judgment module; and the analysis and judgment module is used for judging and classifying the currently collected data to be analyzed according to pre-stored data categories, and outputting early warning signals when judging that the data to be analyzed belong to an abnormal vibration data category. According to the numerical control machine tool cutter vibration signal detection system and detection method of the invention, the rigid vibration signal collection device which is fixed on a machine tool in a packaged manner is adopted to collect the operating state information of the cutter of the machine tool in a non-contact manner; the detection of and the early warning against the fault of cutter vibration signals are realized on the basis of the pre-trained recognized data categories. The numerical control machine tool cutter vibration signal detection system and detection method have the advantages of high sensitivity, non-contact type detection, high measurement recognition accuracy and the like.

Description

technical field [0001] The invention relates to the technical field of vibration detection, in particular to a vibration signal detection system and detection method of a CNC machine tool tool. Background technique [0002] Whether in aerospace, machinery manufacturing, petrochemical and other modern manufacturing industries, the role of CNC machine tools is indispensable. Its level of independent innovation and development, the needs of national economy and national construction, are of great importance to the development of my country's future science and technology. very important strategically. The vibration detection and analysis of CNC machine tools is of great significance. The tool is the most frequently damaged part on the machine tool. The wear of the tool will affect the machining accuracy of the machine tool and cause serious economic losses. Therefore, the detection of abnormal vibration of the CNC machine tool is mainly for the machine tool. Abnormal vibration ...

AI Technical Summary

Problems solved by technology

However, under the condition of tool vibration of CNC machine tools, the range of resistance value of traditional sensors is generally small, and most of them are contact detection, which is not accurate enough to reflect the abnormal vibration of machine tool tools, and the collected data has a large error, which will affect the accuracy of the analysis results

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