为了提高大型复杂型体件加工用龙门式双摆头五轴机床的加工精度，用激光跟踪仪对五轴机床两个旋转轴准静态误差以及旋转轴中心轴线与三个直线轴间垂直度误差进行了辨识测量。基于刚体运动学原理和齐次变换矩阵方法建立了包含旋转轴准静态误差和旋转轴中心轴线与三个直线轴间垂直度误差的误差模型；用激光跟踪仪测出旋转轴循圆运动到不同角度位置时其端面上点的空间坐标，由此建立旋转轴误差方程组，求出旋转轴各项误差值。对循圆轨迹进行拟合得到圆心坐标，进而得到旋转轴中心轴线方程，求出旋转轴中心轴线与直线轴间的垂直度误差值。将旋转轴各项误差值代入误差补偿模型中，通过圆锥台误差补偿前后加工实验结果对比，表明所采用的旋转轴误差测量方法可以有效提高五轴机床的加工精度。

To achieve the laser accurately positioning on the target in high power laser facility, the error analysis method is necessary to actualize engineering of the facility and increase the technology of the correlational systems. The automatic alignment control system is mainly designed to establish and maintain laser chain alignment and eliminate the error, but the traditional error analysis method based on both contingency and system errors does not give a comprehensive analysis. So a new error analysis method based on both static and dynamic errors is developed. The optical system in the target area is analyzed with this method and a common equation of target positioning tolerance has been obtained. The satisfaction and feasibility of the error analysis are demostrated.

基于高功率激光装置主激光束精确打靶的需要,应用误差分析方法为装置的工程实施和单元技术的改进提供理论指导。针对装置在每发打靶前多应用自动准直技术来消除存在的误差,而传统的误差分析方法即随机误差和传统误差又未能进行全面系统的分析,提出了新的激光瞄准误差分析方法