大尺寸弱刚性机翼翼盒装配技术研究

Research on Assembly Technology of Large-sized Weakly Rigid Wing Box

本文针对大尺寸弱刚性机翼翼盒结构装配的关键技术,结合产品结构分析制定控制与解决方案。对于弱刚性翼盒产品保型,特别是翼肋的保型,借助前后梁进行,确保肋站位面,同时为提高无缝翼大尺寸机翼前梁刚性,合理划分工艺分离面,调整发动机接头装配顺序;对于闭斜结构制孔,应用正反钻模技术解决了高精度孔协调制孔的问题;针对翼盒接头自动类工具制孔,应用精益理念优化装配流程,协调开展并行制孔,提高工具利用率并降低工具成本,缩短产品研制装配周期。

the key technologies of assembling large-sized weakly rigid wing box structures is focused on,and the control and solutions based on product structure analysis are developed.For the shape preservation of weakly rigid wing box products,especially wing ribs,the front and rear beams are used to ensure the rib positioning surface.At the same time,to improve the rigidity of the front beam of large-sized seamless wings,the process separation surface is reasonably divided and the assembly sequence of engine joints is adjusted.For the closed oblique structure drilling,the application of forward and reverse drilling die technology has solved the problem of high-precision hole coordination drilling.For automatic tool drilling of wing box joints,the lean concept is applied to optimize the assembly process,coordinate parallel drilling,improve tool utilization and reduce tool costs,and shorten the product development and assembly cycle.