位置关系的尺寸式表达

Application of measurement-manner in expression of location

用带下标的英文字母表示零件的相关要素,在描述要素的两个字母之间冠以该两要素之间的位置关系符号,用来描述两要素之间的位置关系。根据零件的各个面在工序中的形成过程,找出零件要求的位置与相关工序位置关系的文字表达式——工艺尺寸式,并对其原理进行阐述,为确定工序位置公差提供一种更加科学的新方法。

Use the letters with subscript to describe related elements of the parts. According to the various face of parts in the process of the formation ,find out the expressions between the location parts required and the location related to process —— technology-measurement-manner, and the principle set out in order to provide a new method in the determination of location tolerance.