本文選題：測量 + 角度測量��； 參考：《中國激光》2016年05期

【摘要】：二面角是幾何量測量的重要對象。測角方法眾多,但可用于在機、自動化測量的方法仍相對匱乏。提出了一種基于非接觸激光回轉(zhuǎn)射線的二面角在機測量方法。激光位移傳感器的測量射線在空間內(nèi)繞固定軸旋轉(zhuǎn),構(gòu)成回轉(zhuǎn)射線,是測頭的核心部分�；剞D(zhuǎn)射線掃掠待測工件表面,通過測量兩被測平面與測頭的距離信息并結(jié)合相應的數(shù)據(jù)處理,即可完成二面角的測量。測量裝置作為機床的選配件,由數(shù)控機床主軸搭載,可實現(xiàn)在機測量。提出了基于非接觸回轉(zhuǎn)射線的二面角測量方法的數(shù)學模型,分析了相應的誤差來源并實驗驗證了該方法的有效性。該方法可以較好地完成0°~120°范圍內(nèi)的角度測量,測量結(jié)果與三坐標測量機給出的相對真值進行了對比,實驗結(jié)果表明,最大誤差為14″,相對誤差不超過0.048%。
[Abstract]:Dihedral angle is an important object of geometric measurement. There are many methods of angle measurement, but can be used in the machine, the automatic measurement method is still relatively scarce. A measurement method of dihedral angle based on non-contact laser rotation ray is presented. The measuring ray of the laser displacement sensor rotates around the fixed axis in space and forms the rotating ray, which is the core part of the probe. By scanning the workpiece surface with rotating ray, the dihedral angle can be measured by measuring the distance information between the two measured planes and the probe and combining the corresponding data processing. Measuring device as the machine tool parts, carried by CNC machine tool spindle, can be measured in the machine. A mathematical model of dihedral angle measurement method based on non-contact rotating rays is proposed. The error sources are analyzed and the validity of the method is verified by experiments. This method can be used to measure the angle in the range of 0 擄~ 120 擄. The measured results are compared with the relative true values given by the CMM. The experimental results show that the maximum error is 14 "and the relative error is not more than 0.048".
【作者單位】： 天津大學精密測試技術(shù)及儀器國家重點實驗室;
【基金】：國家重大科學儀器設(shè)備開發(fā)專項(2013YQ17053903) 天津市應用基礎(chǔ)與前沿技術(shù)研究計劃(14JCZDJC39700;14JCYBJC18600)
【分類號】：TG82
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本文編號：2108757