计及尺寸数目的复杂机械零件图尺寸标注分析方法研究

Research on Dimensioning Analysis Method of Complex Mechanical Parts Drawing with the Number of Dimensions

为确保机械零件尺寸标注的完整性和确定性,从组合体的尺寸标注入手,对尺寸类别作出了一些新的定义,在形体分析法的基础上,提出并论述了一种组合体尺寸数目计算方法与标注步骤,通过应用实例验证了方法的有效性;进而应用于复杂机械零件图的尺寸标注,严格计算功能结构的尺寸数目,灵活处理工艺结构尺寸,具有良好的使用效果。

In order to ensure the integrity and certainty of the dimensioning of mechanical parts,some new definitions of dimension categories are made from the dimensioning of combination solids,and on the basis of the shape body analysis method,a calculation method and dimensioning steps of the number of dimensions of combination solids are put forward and discussed,and the effectiveness of the method is verified by an application example.It can be applied to the dimensioning of complex mechanical parts drawing,strictly calculate the dimensioning number of functional structures,and deal with the structure dimensioning flexibly.The use effect is quite good.