利用形体特征表达式辅助机械制图中的尺寸标注

The application of the expression of shape characteristics to assist dimensioning of mechanical drawing

为了解决机械制图中尺寸标注容易漏标、重复标注的现象,结合形体分析法和当今CAD/CAM技术的特征造型思想,使用形体分析表达式辅助机械制图中的尺寸标注,使尺寸标注更方便直观表达,便于检查,尺寸标注更准确。实践表明,这种方法具有简单、方便、实用的特点。

In order to solve the problems of missing and repetition in the dimensioning of mechanical drawing, based on the thought of shape analysis and modem CAD/CAM technology, this paper employs the expression of shape analysis to assist the dimensioning of mechanical drawing, which makes the dimensioning more convenient for intuitive expression, easy to check, more accurate. The application shows that this method has such characteristics as simple, convenient and practical.