The traditional processing method of brakeCAM shaft is to process on the profiling machine, with low efficiency and bad precision.
传统的加工制动凸轮轴的方法是在靠模铣床上加工，效率低、精度差。
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The profile equation of brakecam of DD680 series motor vehicles and tool path equation for processing copying cam have been obtained by using analytical theory of cam mechanism.
This paper introduces a practiced method of calculating the tracer contour data of YX-173A cam milling machine from the discrete curve of brakecam contour, based on the copying principle.