線性位移平台在目前精密設備產業中扮演相當重要之角色,隨著對高精度設備需求不斷地增長,與對加工精度要求不斷地提昇,線性位移平台的檢測技術已經被視為量測設備開發的重要課題。線性位移平台的誤差大多來自於組裝過程與元件品質。本研究以準直雷射、位置感測器、多個鏡組所組成,檢測多自由度誤差與平台組裝元件品質之技術為目標,開發具有高精度、高效率與低成本特性之檢測系統。 本研究主要針對線性位移平台運動時所產生之多自由度誤差,建構高精度之單軸多自由度量測系統。該系統可應用於線性滑軌、三次元量床、工具機、高精密度X-Y平台等線性運動誤差檢測與分析,並在廠商現場實測與驗證,量測距離可達2米,水平直度誤差範圍與垂直直度誤差範圍可量測±50μm,俯仰度誤差範圍與搖擺度誤差範圍可量得±50 Arc Sec,滾動度誤差範圍可量得±80 Arc Sec。直度度精度為1μm,角度精度為0.2 Arc Sec。
In recent years, the linear moving stage is a main part of the high precise equipment. Because of the increasing requirement of precise equipment and the improvement of the manufacturing precision, the research of measurement systems for linear moving stages has become a main task. The errors of multi-degree-of-freedom for linear moving stages are always caused by the assembling process and component qualities. Thus, the researches based on the errors of multi-degree-of-freedom and on the measurement of component quality are developed at the objectives of high accuracy, high efficiency and low cost. In the study, the measuring system based on multi-degree-of-freedom errors measurement for the linear moving component has been proposed. The proposed system can be applied for measuring linear motion errors of linear guideways, CMM, machine tools, high precision X-Y stage and etc. in the future. Measurement results showed that the residual error for the horizontal straightness, vertical straightness, pitch, yaw and roll is ±50μm, ±50μm,±50 Arc Sec, ±50 Arc Sec and ±80 Arc Sec respectively. The accuracy for the straightness and angular measurement is 1μm and 0.2 Arc Sec respectively.