蜗轮齿面滚切误差及调整  

Hobbing Error and Adjustment of Worm-gear Tooth Surface

作　　者：陆建伟 陈宁新 

机构地区：[1]杭州杰牌传动科技有限公司杰牌传动研究院,浙江杭州311223

出　　处：《机械传动》2015年第6期29-34,共6页Journal of Mechanical Transmission

摘　　要：目前国内企业应用的蜗轮滚刀有两种:外径增量滚刀和节圆直径增量滚刀,外径增量滚刀使用寿命短,已被大部分工业发达国家淘汰。节圆增量滚刀需在滚切蜗轮齿面时设定安装偏角和加工中心距,并且随着滚刀的刃磨,滚刀节圆减小,滚刀安装偏角和加工中心距也需再计算调整。不正确的安装偏角和加工中心距将导致蜗轮齿面误差。介绍了滚刀刃磨后计算上述两个机床参数的公式,分析了不正确机床参数引起的蜗轮齿面误差。通过单头和四头蜗轮蜗杆副的两个算例为读者揭示了蜗轮齿面误差的分布,由此提供了纠正机床参数误差的依据。At present, there are two different kinds of worm - gear hobs in domestic ： outer diameter incre- ment hob and pitch diameter increment hob. The outer diameter increment hob has been eliminated a long time ago in the most of the developed industrial countries because of its short service life. However, the pitch diame- ter increment hob needs to set mounting tilt angle and manufacturing center distance that differs from nominal center distance during hobbing. And following the hob reshaping that reduces the hob pitch diameters, the tilt angle and manufacturing center distance have to be re - calculated and adjusted. Any incorrectness of those two settings will cause worm - gear tooth surface error. The calculation equations of tilt angle and manufacturing center distance are introduced, the error of worm - gear tooth surface caused by the above incorrectness machi- ning parameters settings are analyzed. Two calculation examples, one for single head worm - gear and another for multi - starts of worm are given readers to reveal the distribution of the worm gear tooth surface error, the basis for correcting the machining tool parameter error is provided.

关 键 词：蜗轮滚刀 滚刀直径增量 滚刀安装偏角 蜗轮齿面误差 

分 类 号：TG612[金属学及工艺—金属切削加工及机床]