新型并联机床全域力/运动传递各向同性与其结构尺寸关系

The relationshlp between glob force/motien transmission isotropic of a noval parallel klnematicmachine and its link lengths

本文提出 6 -SPS并联三维平台新型并联机床的全域力 /运动传递各向同性性能评价指标 ,并结合机床结构特点建立其几何空间模型 ,在几何空间模型中研究了全域力 /运动传递各向同性性能指标与机床结构参数的关系 ,并给出了性能图谱 。

In this paper, the glob force /motion transmission isotropic indices of a novel parallel kinematic machinebased on the 6 - SPS ~parallel three - dimensional platform mechanism are proposed. The geometric mede1 of edutionspace of the Parallel kinematic machine is defined considering its arehitecture feature. The relationships between theglob force/motion transmission isotropic indices and the link lengths are analyzed within the peometric model. Finally,the index maps are presented, whicb can provide significant information for the optimal arehitecture design of the machine.\;