弧面凸轮数控转台的设计概述----------------------- -----------------------日期：弧面凸轮数控转台的设计摘 要：弧面分度凸轮机构是由美国人 C.N.Neklutin 于 20 世纪 20 年代发明的，并由其所创建的Ferguson 公司首先进行了系列化、标准化生产。该机构是用于两垂直交错轴间的间歇分度步进传动。由弧面分度凸轮、从动转盘以与在从动转盘径向均布的滚子组成。由于弧面分度机构具有传动速度高、分度精度和动力学性能好、承载能力大、可靠性好等优点，所以广泛应用于各种自动机械，如烟草机械、包装机械、加工中心换刀机械手等。分度凸轮机构具有结构简单，能自动定位以与动静比可任意选择的特点，与棘轮机构、槽轮机构、针轮机构等几种传统的间歇运动机构相比，更适合于要求高速、高分度精度的场合，因而广泛应用于各种多工位自动机械、直线步进机械中。随着自动机械向高速化、精密化、轻量化的方向进展，现有分度凸轮机构已难满足更高要求的需要。关键词：弧面分度凸轮，参数分析，运动仿真The globoidal indexing cam rotary tableAbstract:The globoidal indexing cam mechanism,which consists of a driving globoidal indexing cam and driven turret with four or six cylindrical rollers was firstly designed by an American,C.N.Neklutin,in 1920s and was manufactured by his own company in series and standard.The globoidal indexing cam mechanism has been using in many kinds of automatic machinery.It has great advantage over other indexing mechanisms,such as high speed、precise index and excellent kinetics.The indexing cam mechanisms are more suitable to the work conditions where high speed and accurate output precision are needed,and have been widely used in all kinds of multi-steps machines,linear intermittent machines due to their advantages of simple structure,automatic positioning compared with other intermittent mechanisms. However,existing indexing cam mechanisms can’t meet the requirements of the fast development of automatic machines.Key words ： globoidal indexing cam,Parameter analysis,Motion sim...
