Research on Assembly Technology of Large-sized Weakly Rigid Wing Box
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.
large sizeweak rigidityclosed angle structurefront and back drilling molds
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