In order to improve the dynamic performance of mechanism,the law of sheave＇s motion is stipulated firstly in the design of a Geneva mechanism.And then through motive simulation by UG software obtains the trajectory of roller pin on the sheave,and builds the mathematic model of cured Geneva mechanism.The data are useful for machining and checking.%为了改善槽轮机构的特性,设计时先规定槽轮的运动规律,采用UG（Unigraphics NX）软件进行运动仿真,求出圆销在槽轮上的运动轨迹,构建曲线槽轮机构的数学模型,为加工和检验提供技术数据。
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