Kinematic Analysis and Dimensional Synthesis of Exechon Parallel Kinematic Machine for Large Volume Machining
Kinematic Analysis and Dimensional Synthesis of Exechon Parallel Kinematic Machine for Large Volume Machining
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DOI：
10.1115/1.4029499
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发表时间：
2015-11-01
影响因子：
2.6
通讯作者：
Huang, T.
中科院分区：
文献类型：
--
作者：
Jin, Y.;Bi, Z. M.;Huang, T.
并联机床的拓扑结构只有在几何参数优化的基础上才能发挥最佳性能。本文首次对一种新型并联机床进行了尺度综合。以并联机床的工作空间体积和全局灵活性最大为目标，提出了一种优化方法。结果表明，该方法能有效地识别不同加权目标下的设计参数变化。优化后的并联机床具有较大的工作空间与占地面积比和良好的工作空间，适合大批量加工。
A parallel kinematic machine (PKM) topology can only give its best performance when its geometrical parameters are optimized. In this paper, dimensional synthesis of a newly developed PKM is presented for the first time. An optimization method is developed with the objective to maximize both workspace volume and global dexterity of the PKM. Results show that the method can effectively identify design parameter changes under different weighted objectives. The PKM with optimized dimensions has a large workspace to footprint ratio and a large well-conditioned workspace, hence justifies its suitability for large volume machining.