关键词: 飞机装配, 柔性工装, 定位, 运行误差, 补偿, 激光测量

Abstract: To guarantee the design requirement of 0.05mm positioning accuracy in the three-axis column locating unit of the digital flexible tooling and to realize the accurate assembly positioning based on coordinate holes,the influence factors of positioning accuracy were analyzed comprehensively according to the location feature of flexible tooling in the assembly process of one aircraft's four leading edge flap components.Under the built tooling coordinate system,the locating accuracy of column locating units was measured by laser tracker.The positioning error model of flexible tooling locating unit's single axis motion was constructed based on the axial positioning error and lead error of ball screw drive system and the orientation installation error of guideway guiding drive system.The practical guarantee scheme of positioning accuracy was made up by calculating the overlaid positioning accuracy.Experimental results showed that the compensated results of the locating units could fully satisfy the given positioning accuracy.

Key words: aircraft assembly, flexible tooling, positioning, leading deviation, compensation, laser measurement