阻尼对数控机床工作台轴向振动的影响分析  

Influence of Damping on Axial Vibration Based on Numerical Control Machine Working Table

作　　者：耿伟涛[1] 刘念聪[1] 陈建龙[1] 邓世纪[2] 王进[1] 杨家锐 曾浩然[1] 

机构地区：[1]成都理工大学,成都市610059 [2]成都工具研究所有限公司

出　　处：《工具技术》2017年第7期116-119,共4页Tool Engineering

基　　金：国家自然科学基金(51575457);四川省教育厅科研项目(06ZB0098)资助

摘　　要：为研究阻尼对滚珠丝杠进给系统动态性能的影响,综合考虑了丝杠扭转振动和轴向振动的耦合,利用拉格朗日方程建立进给系统的动力学模型,并采用MATLAB软件对其动力学方程求解,得到不同阻尼参数下工作台轴向振动的加速度曲线。分析结果表明,螺母阻尼对工作台的轴向振动影响最大,导轨阻尼影响次之,电机转子扭转阻尼影响最小;增大阻尼可减小工作台的轴向振动加速度。The influence of damping parameters on the ball screw feed system （ especially the working table ） is studied, considering the coupling between torsional vibration and axial vibration of screw. The dynamic model of the system is established by using Lagrange equation. Using MATLAB to solve the equations of motion, the acceleration images of the working table under different damping parameters can be obtained. The result shows that nut damping affects the axial vibration of the table is the first, but rotor damping is least. The acceleration of the axial vibration of the working table is reduced with the increase of the damping.

关 键 词：滚珠丝杠 进给系统 振动模型 阻尼 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TH161[机械工程—机械制造及自动化]