一种新型飞机曲面壁板自动制孔法向测量方法

A Novel Method of Automatic Drilling's Normal Measurement for Aircraft Curved Panel

针对飞机曲面壁板自动制孔的高垂直度要求,本文提出一种新型的基于多激光位移传感器的法向测量方法。首先,在刀具坐标系下,利用标定基准板及激光跟踪仪对各个激光位移传感器空间位置坐标信息进行标定;其次,将标定结果与激光位移传感器实际测量的距离值相结合,求解制孔部位周边激光点坐标;最后,利用最小二乘法求解制孔部位法向量。该测量方法不以测量设备的位姿为前提,且对安装精度也无较高要求,具有精度高、操作方便、适用于工程应用等特点。

For ensuring the verticality of the aircraft panel＇s auto-drilling, a novel normal measurement which is based on several laser displacement sensor is presented in this paper. Firstly, In the coordinate system of tool first of all, the laser displacement sensor＇s location information is demarcated; Then combining the results of the demarcating and measurement results, the coordinate values of neighboring spot of the hole can be got. Finally, the normal of the hole can be derived using the least squares method. The novel method does not need the pose of the measurement equipment and can be flexibly applied to the engineering practice.