基于OFRG装配模型零件尺寸标注模式的分析方法

Analyzing Methods of Dimension Marking Mold of Assembling Model based on OFRG

零件尺寸标注模式的实质就是零件约束图的生成树。要进行零件尺寸的标注,首先要分析装配体中零部件之间的约束关系,其次根据零件尺寸标注要求的合理性、正确性、清晰性及完整性等要求,改进生成树的算法,确定出该零件的非功能尺寸,并将该零件上已经确定的约束信息添加到零件上,从而最终完成零件的尺寸标注模式。

The essence of the mould of dimension marking of parts is the spanning tree of constraint graph.The dimension marking of parts needs to analyze the constraint relationship among parts in order to improve the spanning tree algorithm and determine the non-functional dimension and add the fixed constraint information to the parts correctly,reasonably,clearly and completely.Finally finished the dimension marking of parts.