摘要
依据齿条刀具范成法加工非圆齿轮的原理,建立了计算机仿真加工中的刀具与齿坯间运动学模型;通过对仿真齿条刀具加工中齿廓形成过程的分析,提出了一种基于齿廓特征点的齿廓描述方法;根据齿廓的形成规律,提出了齿廓特征点、齿根圆、齿根过渡曲线和齿顶圆等全部齿廓数据的计算算法,并利用该算法编写了椭圆齿轮齿廓计算程序,该程序可直接用于线切割等数控加工设备加工。采用该方法设计加工出的椭圆齿轮已成功应用于所研制的插秧机分插机构样机及其试验台中,从而验证了该方法的可行性。
According to the theory and real process of tooth profile generation with rack--shapedcutter, the kinematics model of cutter in the machining simulation system was presented. With the a nalysis of the tooth profile generation in the simulation process, the tooth profile was described as feature point set, and the generating rule of the tooth profile was summarized. Moreover, the numerical algorithms of the whole tooth profile data, which included the feature point, fillet and addendum curve, were proposed. The software of tooth profile for elliptical gear was programmed, which could be used by wire electric discharge machining for the elliptical gear＇s machining. The elliptical gear machined by this method has been used successfully in the rice transplanter and its test platform, which verifies the feasibility of the method.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2008年第15期1796-1799,共4页
China Mechanical Engineering
基金
“十一五”国家科技支撑计划重大项目(2006037042008)
关键词
非圆齿轮
齿廓
范成法
数值算法
noncircular gear
tooth profile
generating method
numerical algorithm
