凸节曲线非圆齿轮蜗杆砂轮磨削加工方法  

Worm wheel grinding method of convex pitch line non-circular gear

作　　者：何坤[1] 李国龙[1] 周泓曲 夏冬[1] 张薇[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《重庆大学学报（自然科学版）》2015年第1期140-147,共8页Journal of Chongqing University

基　　金：国家科技支撑计划资助项目(2012BAF13B09);Supported by National Key Technology Support Program of China(2012BAF13B09)

摘　　要：针对非圆齿轮精加工难题,提出了一种凸节曲线非圆齿轮蜗杆砂轮磨削方法。将蜗杆砂轮简化为齿条刀,建立齿条刀展成加工凸节曲线非圆齿轮的运动数学模型。根据数控蜗杆砂轮磨齿机结构及展成加工原理,进行机床电子齿轮箱规划,确定主动轴与跟随轴,并利用等弧长加工原理推导出机床同步轴间的同步系数,建立磨削加工联动模型。最后,给出了蜗杆砂轮与非圆齿轮的手动对刀方法,并对蜗杆砂轮安装角、轴向位置及沿齿轮轴向位置参数进行调整。To overcome the precision machining difficulty of non-circular gear,a convex pitch curve of noncircular gear and worm grinding method is presented.Firstly,worm wheel is reduced to rack cutter and a rack machining convex pitch curves of non-circular gears sport model is set up.Then based on the structure of CNC worm wheel grinding machine tools and machining principle,electronic gear box of machine tools is designed and active and following axes are planned.At the mean time,the synchronous coefficient of machine tools between synchronization is deduced by machining principle of equal arc-length,and interaction models of grinding are established.At last,the worm wheel manual presetting cutter methods with non-circular gear are given and worm grinding wheel mounting angle,axial position and axial location parameter can be adjusted along the gear.

关 键 词：非圆齿轮 蜗杆砂轮 同步 磨削加工 

分 类 号：TG701[金属学及工艺—刀具与模具]