Abstract:For reliability tests of machine tools, a load simulator based on a 3P-(4S) parallel mechanism is proposed.
An explicit force control system is designed based on a proportional-integral (PI) controller. A fuzzy logic is introduced
to adapt various following errors of output forces. A force feedforward is integrated to the system to develop its dynamic
performance and decrease the hysteresis of the output forces. Meanwhile, a position feedforward that predicted the position
of the spindle is designed to eliminate the disturbance caused by the unknown feeding motions of the spindle. Loading experiments
is conducted on a stationary and a moving spindle, respectively, to validate the feasibility of the proposed control
system.
作者简介: 樊 锐 北京航空航天大学教授,博士,主要研究方向为数控技术、传感器技术、机电控制及自动化等。1992 年起参与组织International Conference on theProgress of Cutting Technology(加工技术进展国际会议),历任秘书长、副主席、主席等职位。
引用本文:
樊 锐,万英和,王 丹,郭江真. 数控机床切削力负载模拟器的显式力控制算法设计*[J]. 航空制造技术, 2017, 60(6): 16-21.
FAN Rui, WAN Yinghe, WANG Dan, GUO Jiangzhen. Explicit Force Control of a Cutting-Force Simulator for Numerical Control Machine Tools. Aeronautical Manufacturing Technology, 2017, 60(6): 16-21.