关键词: 三维工序模型, 工艺本体, 建模本体, 基于模型的定义, 映射

Abstract: To achieve the purpose of taking Three Dimensional (3D) process model as machining procedure information's carrier, a 3D machining procedure model aided generation method was proposed. The method analyzed Petri net model which generated by procedure model, and the generation phases of procedure model were divided. Process ontology orient to machining process design and modeling ontology oriented to 3D modeling information were established. Besides, transformation mapping relationship between two ontology was constructed. Positive creation method and negative creation method of procedure model were presented. In positive creation method, the process redundancy creation method oriented to 2.5D and exceeding 2.5D machining feature was studied. In negative creation method, the application and constraint condition were analyzed. By these methods, 3D procedure model could be created by using machining process knowledge.

Key words: three dimensional procedure model, process ontology, modeling ontology, model based definition, mapping