本文综合考虑了从动系统的弹性及机构中的间隙等影响因素；研究了蜗杆分度凸轮机构在分度过程中的各个时期．从动系统的振动特性．提出改善机构动力学特性的措施 In this paper, the influencing factors such as the elasticity of the driven system and the clearance in the mechanism are comprehensively considered. The various stages in the indexing process of worm indexing cam mechanism are studied. Vibration characteristics of driven system. Put forward measures to improve the dynamic characteristics of the mechanism