The model consists of full information of product,assembly relationship and assembly tree.
该层次模型包括零件(产品)信息、装配关系、装配树等完备的产品信息。
参考来源 - 数字化产品预装配序列生成、评价与优化研究According to the characteristics of progressive dies,the assembly tree of progressive die is created based on several assembly models of progressive die . By using object-oriented method, the assembly tree of progressive dies are organized based on the associated.
针对模具结构特点,在分析现有的几种装配树模型的基础上,利用面向对象的方法,重新组织了模具结构的装配树,用以表达模具零件之间的关联。
参考来源 - 级进模关联设计技术的研究与开发·2,447,543篇论文数据，部分数据来源于NoteExpress
装配树视图的建立。
装配模型的结构体现了自项向下的设计理念，实现了装配树层次信息、配合信息和零件信息的分别管理。
The model embodied the top-down design idea, achieved the respective management of assembly architecture information, mate information and parts information.
在此基础之上，对装配树信息提取的算法进行了研究，并提出了一种基于UG装配环境的装配信息提取算法。
On the basis of studying the algorithm of information extraction of assembly tree, the algorithm of assembly information extraction based on UG is put up forward.
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