基于机械对称性知识的夹具快速设计

对机械对称性知识体系进行简要总结,分析机械对称性知识在机械设计与工艺规划领域的应用。对机械对称性所包含的结构对称性-功能对称性-原理对称性作用机制进行研究,提出根据机械对称性知识来进行夹具快速设计的基本思想。建立基于对称性知识的夹具信息模型,提出在机械对称性知识作用下夹具快速设计的关键技术与体系结构。根据对称性原理,在对SolidWorks进行二次开发的基础上,开发了应用于汽车同步器制造的CAFD系统,实现了基于机械对称性知识的夹具快速设计,验证了系统的实用性与有效性。

Modular Fixture Assembly Model for Virtual Assembly Design

To support modular fixture assembly design in virtual environment,a multi-view based modular fixture virtual assembly model is proposed.Instead of squeezing all assembly related information into a single model,three complementary views of assembly model,element information,function and structure,and assembly relationship are proposed to be used.The first view contains the detailed element information,while the other two explicitly capture the hierarchical function relationships and mating relationships respectively.These views are complementary in the sense that each view only contains a specific aspect of assembly related information while together they include required assembly related information.The proposed assembly model is specialized to accommodate the features of modular fixture virtual assembly design and applied in our developed prototype system.