CNC旋盤用電動チャックシステムの開発(第一報) : 基本メカニズムとその性能  [in Japanese] Development of an Electric Power Chuck System for CNC lathe (1st Report) : Basic Mechanism and Performance  [in Japanese]

The study deals with a development of an electric power chuck system for CNC lathe. Today, almost power chuck system for CNC lathes are used with hydraulic system included with hydraulic fluid which causes the environment pollution. Besides, not only the hydraulic pump always wastes energy, but also its heat transfer causes thermal deformation and deteriorates machining accuracy. In the study, in order to remove the hydraulic pump system from CNC lathe, the electric power chuck system which is able to adopt to the general CNC lathe and to have enough capability as general hydraulic power chuck system are developed. The electric power chuck system adopt to alternate general hydraulic pump system. From the experimental result, the developed electric power chuck system is found to have enough abilities. In addition, the electric power chuck system aims to improve machining accuracy by intercepting heat transfer and environmental pollution as well as removing the hydraulic system from machine tools.