| 一种新型4自由度并联机床构型设计与运动学分析 |
| |
| 引用本文： | 何镏源,梅瑛,许文文,沈祚,李瑞琴.一种新型4自由度并联机床构型设计与运动学分析[J].机械传动,2019,43(3):83-89. |
| |
| 作者姓名： | 何镏源 梅瑛 许文文 沈祚 李瑞琴 |
| |
| 作者单位： | 中北大学 机械工程学院,山西太原,030051;中北大学 机械工程学院,山西太原,030051;中北大学 机械工程学院,山西太原,030051;中北大学 机械工程学院,山西太原,030051;中北大学 机械工程学院,山西太原,030051 |
| |
| 基金项目： | 国家自然科学基金;山西省回国留学人员科研项目 |
| |
| 摘 要： | 提出了一种能实现沿y轴、z轴移动和绕x轴、y轴转动的新型4自由度部分解耦并联机构,将该并联机构辅以能实现主轴x轴移动和x轴转动的动平台,共同组成一种新型并联机床构型;此机床机构特为涡轮叶片加工而设计。对机构进行了运动学分析,得到了运动学方程和雅可比矩阵;使用几何方法对机构的工作空间进行了分析,利用雅可比矩阵证明工作空间没有奇点,并获得了给定任务下的机构执行器所需行程长度。
|
| 关 键 词： | 并联机床 运动学 叶片加工 工作空间分析 奇异性 |
Configuration Design and Kinematics Analysis of a New 4-DOF Parallel Machine Tool |
| |
| He Liuyuan,Mei Ying,Xu Wenwen,Shen Zuo,Li Ruiqin.Configuration Design and Kinematics Analysis of a New 4-DOF Parallel Machine Tool[J].Journal of Mechanical Transmission,2019,43(3):83-89. |
| |
| Authors: | He Liuyuan Mei Ying Xu Wenwen Shen Zuo Li Ruiqin |
| |
| Affiliation: | (School of Mechanical Engineering,North University of China,Taiyuan 030051,China) |
| |
| Abstract: | A new 4-DOF partially decoupled parallel mechanism which can move along the y-axis,zaxis and rotate around the x-axis and y-axis is proposed.The mechanism is supplemented by a moving platform which can move the x-axis and rotate the x-axis of the spindle.The mechanism is designed for machining tur.bine blades.The kinematics analysis of the mechanism carried out,the kinematics equation and Iacobian matrix are obtained.The workspace of the mechanism is analyzed by using the geometric method,the Jacobian matrix is used to prove that the scheme has no singularities in its workspace,the required stroke length of the actuator for the defined task is obtained. |
| |
| Keywords: | Hybrid machine tool Kinematics Blade machining Workspace analysis Singularity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
