摘要
阐述了产品生产中,通过可预见性的模型计算与数字拟合装配、气动外缘公差尺寸链的分析,制定零件公差状态、调整工装设计补偿量、进行数字化工程数据控制,进而在装配过程中采用多种数字化手段:如激光跟踪仪的使用,CATIA的现场数字拟合产品零件最优装配等,进行数字装配时的工艺补偿。此种装配方案能够减少或避免干涉,确保按规范要求顺利完成复合材料结构件的装配;降低了组件的超差率,从而节省产品的生产成本;减少了装配过程中的误差累积,能够把产品的气动外形控制在设计要求公差的十分之一。
In this paper, a method is provide to determine the tolerances of the components based on computa-tion of digital model and data fitting, tolerances chain analysis on the aerodynamics edges, combining with equalized tool design and process control of model based design （MBD） model. Varity of digital methods, such as laser tracker and data fitting between MBD model and the product, is adopt to equalize the tolerances during assembling. The structural interference can be avoided with this technique, making the product meet the demand of the delivery speci- fications. Besides, it decreases the rates of tolerance exceeding and the cost of manufacturing. The accumulated toler-ance of aerodynamics can be reduced to 10% of designed demands during assembling with the method.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2012年第6期97-99,共3页
Aerospace Materials & Technology
关键词
装配
飞机气动外形
工程数据数字化控制
数字拟合装配
Assembly, Aircraft aerodynamic, Engineering data digital control, Digital fitting assembly
