Method for conditin monitoring system for single point cutting tool using vibration analysis

摘要

ABSTRACT This system proposes a method to continuously monitor the condition of single point cutting tool. As condition of tool tip is a contributing factor for quality and utilization of raw materials in lathe machining process, it is necessary for the operator to be informed about real time condition of the machining set up. The current system consists of an accelerometer and an embedded system with a display. The accelerometer measures and vibrations arising from lathe machining process. The system can distinguish four different categories - Tool tip in good condition, Tool tip slightly blunt, Tool tip heavily blunt and lathe machine in free running mode. The system uses an 8-bit microcontroller to sample data acquired from accelerometer and either transfer the data points to computer via communication interface(for analysis) or determine condition of cutting tool based on acquired vibration signals. The system uses ADC (Analog to Digital converter) interfaced with analog input port of microcontroller to accurately acquire and measure the vibration signal. After further processing the system indicates the result on an LCD display fitted on the dashboard.