摘要
针对传统的附加径向运动进行斜齿轮齿向修形时的修形扭曲问题,提出一种调整瞬时接触线的刀位优化方法。从成形磨削的本质出发,基于位形空间的啮合理论,求解得到砂轮与工件之间精确的空间动态接触曲线;对瞬时接触线包络出的修形齿面与理论齿面进行误差分析,并基于啮合区域误差平方和最小原理对实时的径向刀位进行优化;以一种齿向鼓形修形齿轮为例对该方法进行了验证。模拟及实验结果表明,该方法可有效消除节圆处的修形误差,并可降低整个啮合区域的修形误差。
Aiming at the twist problem of the additional radial motion in lead modification of helical gear, a tool path optimization method was proposed by adjusting simultaneous contact lines. The dynamic simultaneous contact line was solved accurately based on the gear engagement theory. The error analysis for deviations of enveloped tooth sur- face with respect to theoretical tooth surface in measuring circle was established and the tool path was optimized on engaging region though the least squared-error method. As an example of crowning gear, the proposed method was validated, and the results showed that the method could effectively eliminate the modified errors in measuring circle, as well as reduce the maximum thickness error on meshing region.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2014年第2期361-370,共10页
Computer Integrated Manufacturing Systems
基金
国家自然科学基金资助项目(51175242)~~
关键词
成形磨削
瞬时接触线
齿向修形
误差
刀位优化
form grinding
simultaneous contact line
lead modification
error
tool path optimization
