错齿盘铣刀多齿铣削机理分析  

Analysis of rough gear gashing force for multi-engaged cutting blades

作　　者：张金[1] 张建润[1] 孙岳江 黄筱调[3] 戴永奋 裴亮 Zhang Jin;Zhang Jianrun;Sun Yuejiang;Huang Xiaodiao;Dai Yongfen(Southeast University,Nanjing,210096,China;Ma'anshan Fangyuan Slewing Ring Co.,Ltd,Ma'ansha,243052,China;Nanjing Tech.University,Nanjing,210009,China)

机构地区：[1]东南大学,南京市210096 [2]马鞍山方圆回转支承股份有限公司,安徽马鞍山243052 [3]南京工业大学,南京市210009 [4]农业农村部南京农业机械化研究所

出　　处：《中国农机化学报》2018年第12期30-35,共6页Journal of Chinese Agricultural Mechanization

基　　金：国家自然科学基金(51175242)--大重型精密数控机床运动结合部精度衰退机理研究;国家重大科技转型(2012ZX04002-041)

摘　　要：错齿盘铣刀由刀体和可转位刀片组成,安装在铣齿机上在可进行齿轮成形铣削工艺,属于非自由强力铣削。切削载荷、切削耐用度与加工精度是研究其切削机理的关键内容。在研究切削载荷方面,通过建立的切屑拓扑结构,应用TFEA方法,结合刀具的结构以及加工参数,采用非线性指数方程,建立切削载荷模型。采用电流测试的方法进行有效验证。由于机床的横向方向与齿形方向一致,同时是刚性薄弱方向,综合考虑三向切削载荷而不是平面切削载荷,比较三向切削载荷幅值、相位在成形时刻的变化情况。基于相位的变化,产生相位一致和相位相反两种情况,进而产生负向误差和正向误差。结合Z向运动位移,预测不同切削参数下加工精度的变化趋势,为现场加工提供指导作用。Disk-type gear gasher is promised by a cutter body and indexable inserts,affording gear gashing which belongs to no free, heavy cutting.By applying nonlinear empirical exponential formula and using Time Finite Element Analysis method,the model of gashing forces was obtained.The corresponding gashing torque was unanimity as the spindle current measured.Based on the intermittent force model,the machining condition was focused along the gear lead for the forces'amplitude and phase on the profile time.The value changed greatly until 0.There were two manifestations called phase congruency and phase imbalance which led to negative deviations or positive deviations.So,the force of rough gear gashing had been completed preliminarily,providing guidance for processing.

关 键 词：错齿盘铣刀 切屑结构 成形时刻 

分 类 号：TG61[金属学及工艺—金属切削加工及机床]