COORDINATE MEASURING MACHINE USING PARALLEL MECHANISM

COORDINATE MEASURING MACHINE USING PARALLEL MECHANISM
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采用并联机构的三坐标测量机

DOI：
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发表时间：
2000
期刊：
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影响因子：
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通讯作者：
T. Oiwa
T. Oiwa
中科院分区：
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文献类型：
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作者：
T. Oiwa

文献摘要

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提出了一种基于空间三维自由度并联机构的三坐标测量机（CMM）。这种机构的使用将潜在地提高刚度、精度和效率。本文介绍了三坐标测量机的基本原理和实验装置。此外，还对链路布局对测量不确定度的影响进行了分析和实验研究。结果表明，测点在标度单元的拉伸方向时，测量不确定度减小。因此，阿贝原理可以应用于所提出的并联机构。
This study proposes a new coordinate measuring machine (CMM) based on a spatial 3DOF parallel mechanism. The use of this mechanism will potentially improve the stiffness, accuracy and efficiency. This paper describes the fundamentals and an experimental CMM. The influence of link layout on the measurement uncertainty, moreover, has been investigated analytically and experimentally. Obtained results show that the uncertainty has been decreased when the measuring point is in the extensional direction of the scale unit. Consequently, the Abbe’s principle can be applied to proposed parallel mechanism.