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平躺並聯式三軸運動平台之機構校正

Calibration of Mechanism for a 3-DOF Parallel Motion Platform with Intersecting Rails

摘要


並聯式機構具有高剛性、高精密、低慣性與簡易機構的優點。本論文以平躺並聯式三軸運動平台(3-PRS)為研究對象,探討機構因零件加工、工件定位、機構組裝所產生的靜態誤差,利用雷射位移計量測平台姿態,檢測上平板原點的偏差值與校正三軸接點的高度值,進而修正逆向運動學,以提升平台姿態精度值。

並列摘要


Parallel machine tool (PMT) has advantages of high rigidity, high precision, low inertia and simple mechanism. This paper focuses on static state errors that consists of component parts machining、work-piece orientation、mechanism combination for a 3-DOF parallel motion platform with intersecting rails. The positions of moving platform is measured by a laser displacement sensor to prove center departure of moving platform and to calibrate three heights of connect point. Inverse kinematics of this mechanism will be revised and precision of position of moving platform will be promoted in this study.

並列關鍵字

Parallel Mechanism 3-DOF Calibration Error measure

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