光学精密工程2025，Vol.33Issue(10)：1594-1608,15.DOI:10.37188/OPE.20253310.1594
面向电主轴的微结构精密加工机构集成设计及力感知特性
Integrated design and force sensing characteristics of micro-structured precision machining mechanism for electric spindle
摘要
Abstract
Because the performance of the existing fast tool servomechanism was difficult to meet the pro-cessing capability and accuracy requirements for non-rotating components with micro-structure array surfac-es,the giant magnetostrictive actuator(GMA)was integrated with the motorized spindle.A design scheme for a micro-structure precision machining mechanism for the electric spindle was presented.First,the influence of the GMA driving magnetic field on the spindle motor magnetic field was analyzed.Sec-ond,the electromagnetic-mechanical coupling model and the force sensing model were established,and the influence of bias current and prestress on its performance-as well as the variation law of force sensing characteristics under different bias currents were analyzed.Finally,the performance test platform was built and verified through experiments.The results show that the excitation magnetic field of GMA is only 4.09%of the driving magnetic field of spindle motor;The addition of appropriate bias current and pre-stress is beneficial to improve the output displacement of micro-structure precision machining mechanism,and the experimental and simulation results verify the validity of the theoretical model.The force sensing simulation results are consistent with the calculation results of the force sensing model,and the output volt-age and the axial force of the main shaft show a first-order derivative relationship.The experimental re-sults show that when the bias current is 1 A and the prestress is 1 MPa,the output displacement can reach 26.2 μm and the output thrust can reach 22 N,which indicates that the design scheme of the micro-struc-ture precision machining mechanism oriented to the electric spindle is feasible and provides a solution for the machining of complex micro-structure components.关键词
电主轴/微结构/精密加工/集成设计/力感知Key words
electric spindle/microstructure/precision machining/integrated design/force sensing分类
机械制造引用本文复制引用
喻曹丰,陈志全,王德运,朱建华,聂仪楠..面向电主轴的微结构精密加工机构集成设计及力感知特性[J].光学精密工程,2025,33(10):1594-1608,15.基金项目
国家自然科学基金项目(No.52105042) （No.52105042）
流体动力基础件与机电系统国家重点实验室开放基金项目(No.GZKF-202302) （No.GZKF-202302）
