Dynamic Behavior of Feed Drive System for Machine Tools

• Main Authors: Jhao-Ming Chen, 陳昭明
• Other Authors: 鄔詩賢
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/70367027890858313599

碩士 === 國立中興大學 === 機械工程學系所 === 97 === In recent years, high speed and high precision feature become focal points in the development of machine tools. However, the high speed and high precision in machine tools which produce friction and heat will cause thermal deformation. And then thermal deformation will affect the machining accuracy of machine tools. The study of the main idea is to develop a finite element computer program software which can simulate and calculate to thermal distribution and displacement when the feed drive system process and get thermal affect in part of machine tools. For this reason, it can be provide the correct positioning information when the feed drive system is working. Firstly, we make a finite element model of feed drive system and give it with the optimization of elements and nodes. Setting the boundary condition to feed drive system and interface the temperature data of sensors from experiment. Get all kind of finite element model files in the feed drive system. Then import the file to the finite element heat dynamic analysis software that we developed, simulation to heat dynamic behavior and analysis the deformation of thermal conduction. Finally, compare to the information from experimental and software to ascertain the finite element calculated by the other millions of the reliability information. Apply this study can do dynamic analysis at thermal behavior character for machine tools to ensure the feasibility of the design and try another improved schemes to improve precision and lifetime of machine tools in the future.