关键词: 面向现场装配, 基于模型定义, 三维装配工艺, 装配工艺模型, 信息管理

Abstract: Aiming at the application requirements of complete accurate expression and efficient management of assembly process information for field assembly,an information expression and management approach of product assembly process model for field assembly was proposed by using assembly in-process model.The evolution characteristic of product assembly process information for field assembly was analyzed,and the instantiation mapping rule from pre-planning assembly process information to field assembly process information was clarified.The definitions of assembly in-process model and assembly process information data were given,and the expression scheme of assembly process model based on Model-Based Definition (MBD) was determined.The effective management of assembly process information for field assembly was realized by using the hierarchical nested management pattern of assembly process information.Furthermore,the assembly process manager was constructed for storing and managing the assembly process information.The proposed approach was integrated into a prototype Three-dimensional Computer Aided Assembly Process Planning (3D-CAAPP) system,and the effectiveness was verified by creating a three-dimensional assembly process information model of a certain type of reducer product.

Key words: field oriented assembly, model based definition, 3D assembly process, assembly process model, information management