主轴-刀柄和刀柄-刀具结合面参数对稳定性Lobe图的影响  

Effect of Parameters of Spindle-holder and Holder-tool Interfaces on Stability Lobe Diagram

作　　者：王二化[1] 吴波[2] 胡友民[2] 杨叔子[2] 

机构地区：[1]常州信息职业技术学院机电学院,江苏常州213164 [2]华中科技大学机械工程学院,湖北武汉430074

出　　处：《机床与液压》2016年第5期9-13,18,共6页Machine Tool & Hydraulics

基　　金：国家关键基础研究计划项目(2011CB706803);国家自然科学基金资助项目(51175208)

摘　　要：为探索主轴-刀柄和刀柄-刀具结合面参数与立铣加工过程稳定性的关系,以主轴-刀柄和刀柄-刀具结合面参数辨识方法和两自由度立铣加工过程动力学模型为基础,研究了主轴-刀柄,以及刀柄-刀具结合面参数等因素对稳定性Lobe图的影响。结果表明:主轴-刀柄和刀柄-刀具结合面的直线刚度对稳定性Lobe图的影响最大,其他结合面参数对稳定性Lobe图均有不同程度的影响;和主轴-刀柄结合面参数相比,刀柄-刀具结合面参数尤其是转动刚度对稳定性Lobe图的影响更大。To explore the relationship between the parameters of spindle-holder and holder-tool interfaces and the stability of end milling,effect of parameters of spindle-holder and holder-tool interfaces on stability Lobe diagram was studied,which was based on parameter identification of spindle-holder and holder-tool interfaces and 2-DOF dynamic model of end milling.The result shows that linear stiffness of spindle-holder and holder-tool interfaces is the most influential factor on stability lobe,and other interface parameters has some effect of different degree.Compared with spindle-holder interface parameter,holder-tool interface parameter especially rotational stiffness has greater influence on stability.

关 键 词：立式铣削 结合面 颤振 Lobe图 

分 类 号：TH12[机械工程—机械设计及理论]