Development of the Thermal Error Measurement System for Machine Tool Spindle Based on Virtual Instruments Technology

Based on the virtual instruments technology, a data acquisition and pretreatment system for monitoring the thermal signals of the spindle of machine tool is suggested, and the temperature rise and thermal distortion signals are collected synchronously. The software of the system introduces Producer/Consumer pattern to improve data sharing and buffered communication between data collecting and data storage processes, by this means, data missing and iteration are avoided, although these two processes run at different rates. At mean time, Matlab Script interface technique is utilized to realize the hybrid programming of Matlab and LabVIEW, which makes the acquisition system possess the ability of accomplishing complex algorithm.