高精数控机床永磁直线进给工作台的力学性能分析  

Mechanical Property Analysis on Permanent Magnet Linear Feed Worktable of High-Precision CNC Machine Tool

作　　者：宁建荣[1] 夏加宽[2] 于玲[1] 李铁军[1] 

机构地区：[1]沈阳化工大学机械工程学院,辽宁沈阳110142 [2]沈阳工业大学电气工程学院,辽宁沈阳110178

出　　处：《机械设计与制造》2013年第12期205-208,共4页Machinery Design & Manufacture

基　　金：高等学校博士学科点专项科研基金资助项目(20102102110001);辽宁省科技厅重点项目(2011020112-401)

摘　　要：高精数控机床永磁直线进给系统的力学特性严重影响机床性能,为研究直线进给系统的力学性能,将永磁直线同步电动机动子与工作台作为一体化结构,利用有限元法对在直线电动机法向电磁力作用下的进给工作台分别进行静力学和动力学分析,并对样机进行了振动测量。结果表明:永磁直线同步电机动子与工作台作为一体结构的变形比电机动子单一结构的变形大,固有频率也有所降低,更易产生共振。精密机床的直线进给系统作为机电一体化结构,应将电机和机械结构作为整体进行分析研究才有实际意义。High-precision CNC machine tool＇s performance is affected by permanent magnet linear feed system seriously. For studying the mechanical properties of linear feed system, the static and dynamic characters of worktable system were analyzed by finite element method supposing the mover of the linear motor and worktable be an integral structure. Prototype vibration was experimented The results show that under the action of the normal force, the integral structure of worktable system has larger deformation and lower natural frequency than single motor mover. The integral structure is easier resonance than mover. It has practical significance to analyses motor and mechanical are as integration structure.

关 键 词：高精数控机床 永磁直线同步电机 法向力 动力学 

分 类 号：TH16[机械工程—机械制造及自动化] TM351[电气工程—电机]