关键词: 工艺数据, 工艺设计意图, 刀位轨迹, 结构化数控工艺模型, 制造工艺

Abstract: As the advanced manufacturing technologies represented by CAD/CAM has been widely applied in industries,the generated process data has been increasing exponentially.To realize the effective reuse of multi-granularity process design intent in Numerical Control (NC) machining process data,a Multi-level structured representation of process data based on process design intent was proposed.Through the method of projecting tool line segment,the correlation between 3D Computer Aided Design (CAD) model and Computer Aided Manufacturing (CAM) model was revealed.The multi-level structured NC process model was used as a guide to analyzing the multi-granularity process design intent embedded in the process.The multi-level structured representation of process data was realized.By taking the three-axis NC milling parts as the research objects,a prototype system based on CATIA was developed to verify the effectiveness of the proposed approach.

Key words: process data, process design intent, tool path, structured numerical control process model, manufacturing process