基于蒙皮内形定位的飞机壁板柔性装配系统

Flexible Assembly System of Aircraft Panel Based on Inner Surface of Skin Positioning

针对飞机壁板数字化、柔性化制造需求,提出一种基于蒙皮内形定位的飞机壁板柔性装配方法,通过有限元参数化建模,应用蒙皮支撑点寻优算法,实现卡板布局优化设计。根据壁板组件各零件的定位要求,详细设计了壁板柔性装配系统中长桁、蒙皮、角片的柔性定位方式,开发了基于EtherCAT总线的分布式网络控制系统用于完成整个壁板的装配。本系统实现了在一套柔性装配系统上完成4块壁板的装配,改变了传统固定式工装设计思维,对飞机壁板柔性装配技术的发展具有重要意义。

In order to meet the requirements of digital and flexible manufacturing of aircraft panel,this paper proposes a flexible assembly method of aircraft panel based on inner surface of skin positioning.Through the application of finite element parametric modeling and the optimization algorithm of skin support points,the optimization design of fixture board layout is realized.According to the positioning requirements of each part of the panel component,the flexible positioning method of stringer,skin and shear clip in the flexible assembly system was designed in detail,and the distributed network control system based on EtherCAT fieldbus technology was developed to complete the panel assembly.Through the application of this system,the assembly of four panels can be completed on one flexible tooling,which changes the traditional design approach and is of great significance to the development of aircraft panel flexible assembly technology.