Research on Thermal Error Compensation Instrument Based on Thermal Modal Analysis for NC Machine Tools

Abstract

Great efforts have been made to improve the accuracy of NC machine tools, within which thermal error compensation is one of the most efficient ways. A new thermal error compensation instrument which is based on thermal modal analysis for NC machine tools is introduced in this paper. OMRONsCJ2M-CPU11 is used as microcontroller, and SAILING TECHNOLOGYs STA-A08 temperature measuring modules as temperature transmitter. Through hardware and software design, high precision and stability can be achieved. By measuring several key points temperature and making use of a thermal error compensation theory, real-time thermal error compensation can be output to the machine tool, thus thermal error can be reduced.

Thermal modal analysis of novel non-pneumatic mechanical elastic wheel based on FEM and EMA

“…9 In the next few decades, the thermal modal have been developed to address the vibration problems of varied structures under thermic environment conditions, such as the aerocraft, [10][11][12] engine exhaust manifold, 13,14 the precision of machining tools, [15][16][17] and some certain vital structural components working in hyper-thermic conditions. [18][19][20][21] Furthermore, there have been plenty of researches studying on the tires modal under the room temperature environment to explore the dynamic characteristic of tyre.…”