关键词: 装配序列规划, 装配模型, 干涉检测, 扩展干涉矩阵, 接触-连接矩阵

Abstract: Aiming at the deficiency in structure representation and information acquisition of existing assembly relationship models, methods for assembly relationship models reconstruction and automatic acquisition of assembly relationship information were studied. Contact-Connection Matrix (CCM) was proposed to express contact relationships and various types of connection relationships among functional parts and connectors. Static clearance analysis and engineering semantics analysis were adopted to set up CCM. Then, Extended Interference Matrix (EIM) was put forward to effectively solve assembly problems in tilt directions, which other existing methods were incapable of, and assembly direction resolution could also be optimized based on it. Approaches based on sweeping-bounding-box and stepping-detection to establish EIM were discussed. Finally, prototype system was developed based on UG platform, and the effectiveness of this method was verified by the fixture with tilt assembly directions.

Key words: assembly sequence planning, assembly models, interference detection, extended interference matrix, contact-connection matrix