轴用矩形花键参数化建模及刀具展成策略

Axial Rectangular Spline Parametric Modeling and Hob Generating Strategy

以轴用矩形花键及其加工滚刀为研究对象,推演了工件截形及滚刀齿形各特征点线的计算公式,运用VBA语言对AUTOCAD进行二次开发,实现了矩形花键截形及花键滚刀齿形的参数化建模,运用包络算法,完成了滚刀齿形展成模拟。

Taking the external rectangular spline and machining hob as research object, calculation formulas for each elements on the spline contour and hob profile were derived firstly, including the feature points, lines and arcs, parametric modeling for spline contour and hob profile were realized on AUTOCAD by making a further development via VBA language, generating simulation of the cutter profile was achieved by using a envelopment algorithm in the end.