关键词: 特征, 工件机加工能耗, 分层面向对象的Petri网, 设计参数, 制造参数, 数控机床

Abstract: To promote energy conservation for enterprises an energy consumption estimating method for turning part integrated with design and manufacturing parameters was proposed by considerating the part design and collaborative manufacturing.The design parameters of part were saved as feature dictionary after feature reconginzation based on STEP AP224.The process planning was conducted based on feature dictionary and the toolpath of each process was generated considering process sequence.The token file was generated by abstracting the design and manufacturing information for each process to achieve manufacturing parameter integration.A dynamic energy consumption model was constructed based on Hierarchical Objected-Oriented Petri net(HOONet),and the energy consumption model was derived by token file to obtained the machining energy for the part.The proposed method was demonstrated by estimating the energy consumption of a tray part and a shaft part,and the estimation accuracy was analyzed and verified by comparing the estimated value and measured value.

Key words: feature, part machining energy, hierarchical objected-oriented Petri net, design parameter, manufacturing parameter, numerical control machine tools