关键词: 制造信息, 建模, 制造特征, 特征类型, 实例化, 产品设计

Abstract: Aiming at the requirements for product manufacturing information to machining process, a hierarchical product manufacturing feature information definition framework was constructed by feature-based information modeling in which geometry shape and manufacturing information of the model was integrated. Based on this, concepts and descriptions of manufacturing feature type and manufacturing feature instance were proposed, and a product manufacturing feature information instantiation method was put forward. In the study, manufacturing feature type database was built to define, extend and store manufacturing feature type information. With manufacturing feature type, product manufacturing feature information can be obtained from product model information, and the product model can then be transferred and stored to information set based on manufacturing feature. Product manufacturing feature instance database was built to store product manufacturing feature instance information and to support following manufacturing activities with required product manufacturing information. Finally, an example was used to verify the approach of obtaining the product manufacturing information and the validity of the proposed method.

Key words: manufacturing information, modeling, manufacturing feature, feature type, instantiation, product design