弱刚性构件数字化预装配及自动钻铆技术应用研究

Application of Digital Pre Assembly and Automatic Riveting Technology of Weak Rigid Components

本文针对运载火箭大尺寸弱刚性构件的结构特点,开展了数字化预装配技术应用研究,研制了一种柔性定位工装,得到满足该结构自动钻铆需求的高精度预装配组件。通过自动钻铆过程变形及受力分析,优化自动钻铆参数及工艺流程。并通过工程化应用,验证了该产品定位方式的合理性、数控程序及工艺流程的可行性、可靠性。

According to the structural characteristics of large-size weak rigid components of launch vehicle, the application research of digital pre assembly technology is carried out, and a flexible positioning tooling is developed to obtain high-precision pre assembly components that meet the requirements of automatic drilling and riveting of the structure. Through the deformation and stress analysis of automatic drilling and riveting process, the parameters and process flow of automatic drilling and riveting are optimized. Through the engineering application, the rationality of the product positioning mode, the feasibility and reliability of the NC program and process flow are verified.