Mapping Geometric Errors of 3-RPS Parallel Mechanism
-
摘要: 为了提高六轴混机床的运动精度,以其3-RPS并联机构为研究结构模型,分析了影响机构可达空间的几何误差源,建立了位姿误差模型。在ADAMS虚拟样机建模环境中,构建了包含全部几何误差参数的机构运动学模型,仿真了主要几何误差参数对终端运动精度的影响规律。根据仿真结果,对并联机构所有的几何误差从误差源到工作空间的映射关系进行了分析和评价。Abstract: In order to improve the kinematic accuracy of a six-axis hybrid machine tool,we study its 3-RPS parallel mechanism,analyze the geometric errors that influence its reachable space and establish its attitude error model.We use the ADAMS virtual prototyping software to construct the kinematics model of the parallel mechanism that includes all parameters of geometric errors and to simulate the effects of the major geometric errors on the kinematic accuracy of the parallel mechanism.According to the simulation results,we evaluate the mapping of all its geometric errors,including those of error source and workspace.
-
[1] 高猛等.并联机构铰链制造误差的补偿[J]. 清华大学学报,2003,43(5):617~620 [2] 黄田,李亚等.一种三自由度并联机构几何误差建模灵敏度分析及装配工艺设计[J]. 中国科学(E辑),2002,32(5):628~635 [3] 汪劲松,白杰文等.Stewart平台铰链间隙的精度分析[J]. 清华大学学报,2002,42(6):758~761 [4] 黄玉美,彭中波等.并联机构安装角的合理设计[J]. 设计与研究,2004(8):73~75 [5] 闫述,王旭永,陶建峰,朱野.三自由度摇摆台姿态逆解及AD-AMS仿真[J]. 系统仿真学报,2008,20(2):325~327 [6] 高洪,赵韩.6-3-3并联机构部分工作空间分析与仿真[J]. 系统仿真学报,2007,19(24):5806~5808 [7] 韩旭炤,黄玉美,陈纯等.一种新型三自由度平面并联机构的运动学解析[J],农业机械学报,2009,25(1):23~27 -
![WeChat](/fileJXKXYJS/journal/article/jxkxyjs/2012/3/PIC/wechat_cn_5789.jpg)
计量
- 文章访问数: 140
- HTML全文浏览量: 35
- PDF下载量: 8
- 被引次数: 0