Fault diagnosis device for numerically-controlled machine tool

Abstract

The invention relates to a fault diagnosis device for a numerically-controlled machine tool. The device comprises a sensor, a signal pick-up circuit, a processing unit, an alarm, an LED (Light Emitting Diode) indicating lamp, an LCD (Liquid Crystal Display), a driving circuit and a key for setting working parameters, wherein the sensor is mounted on the numerically-controlled machine tool; the signal pick-up circuit processes a signal detected by the sensor to form a standard signal so as to be input into the processing unit; the processing unit compares the input signal with a characteristicvalue, the alarm and the LED indicating lamp can give alarm information if the input signal exceeds the set value, and simultaneously, the driving circuit enables the information to be displayed on the LCD; and the processing unit is an STC single chip microcomputer. The device provided by the invention can quickly judge a fault part or perform early warning on a fault, is small in volume and convenient to use, can relatively quickly position the fault, and is convenient to popularize.

Description

technical field [0001] The invention relates to a fault diagnosis device, in particular to a fault diagnosis device for a numerically controlled machine tool. Background technique [0002] In recent years, with the improvement of the automation level of the manufacturing industry, a large number of CNC machine tools are used in the production site, because the CNC machine tool is a device that integrates machinery, electricity, and hydraulics, with high precision and advanced automation, which brings great benefits to maintenance. Difficult, the fault diagnosis time is obviously longer than that of ordinary machine tools. The fault diagnosis of CNC machine tools has always been a research hotspot. Although the CNC machine tool itself also provides fault diagnosis information, the use of this information is suitable for a skilled maintenance personnel, but it is still very difficult for ordinary maintenance personnel. In addition, the current intelligent fault diagnosis meth...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the improvement of the automation level of the manufacturing industry, a large number of CNC machine tools are used in the production site, because the CNC machine tool is a device that integrates machinery, electricity, and hydraulics, with high precision and advanced automation, which brings great benefits to maintenance. Difficult, the fault diagnosis time is significantly longer than that of ordinary machine tools

The fault diagnosis of CNC machine tools has always been a research hotspot. Although the CNC machine tool itself also provides fault diagnosis information, the use of this information is suitable for a skilled maintenance personnel, but it is still very difficult for ordinary maintenance personnel.

In addition, the current intelligent fault diagnosis methods for CNC machine tools are relatively mature, but some achievements are difficult to convert into products. Even if there are such intelligent diagnostic products, the frequency of use is reduced due to the high price

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