三回转自由度数控主轴结构设计与运动学分析  

Structural Design and Kinematics Analysis of 3R NC Spindle

作　　者：王战中[1] 刘超颖[1] 程林章[1] 范晓珂[1] 韩彦军[1] 高文中[1] 王军[1] 

机构地区：[1]石家庄铁道大学机械工程学院,河北石家庄050043

出　　处：《机床与液压》2011年第15期23-26,共4页Machine Tool & Hydraulics

基　　金：河北省自然基金(F2008000448);河北省教育厅项目(ZH2007108)

摘　　要：基于对3R斜交非球型手腕结构的研究和数控机床主轴功能的分析,提出一种具有3个连续回转自由度的数控主轴的概念设计,并用SolidWorks软件建立该主轴的三维模型。用D-H参数法建立该主轴的运动学模型,进行运动学分析和工作空间的分析与仿真。仿真结果表明:该主轴结构紧凑、惯量小、灵活度大,能够实现三维空间的任意姿态,扩大数控机床的加工范围。Based on the study of 3 R oblique non-spherical wrist and the analysis of NC machine spindle＇s function, the concept design of a NC spindle, with three continuous rotation degrees of freedom, was offered and the 3D model of this NC spindle was built with Solidworks software. The kinematics model of this NC spindle was setup with D-H parameter method and the kinematics ＆ workspace of this NC spindle were analyzed and simulate. Simulation results indicated that the NC spindle, with compacted-structure, low inertness and considerable flexibility, can be in any gesture in the 3D space. The work range of NC machine can be expanded.

关 键 词：数控主轴 三自由度 仿真 运动学 

分 类 号：TH122[机械工程—机械设计及理论]