关键词: 装配, 语义标注, 推理规则, 几何约束求解, 三维形体, 本体, 产品设计

Abstract: To promote the assembly intelligence and degree of automation, an intelligent assembly technology driven by semantics inference was proposed. The high abstract representation of association among components was constructed by defining assembly port. Association between the three dimension shape of product and semantic content was established through semantic annotation. The product ontology model oriented to assembly was set up. The assembly automatic inference was realized by setting up the semantic inference rule base and the port coordinate system. The mate operation relationship was generated automatically. The three dimension constraint solution engine based on analysis of freedom degree was developed, the transformation matrices were obtained based on inference results, and finally automatic assembly of components was realized by these matrices. The prototype system of intelligent collaborative assembly was developed and tested. The result indicated the effectiveness of this method.

Key words: assembly, semantic annotation, inference rule, geometric constraint solver, three dimension shape, ontology, product design