ホブ切り歯車の精度向上に関する研究 : 第4報,ホブの取付け偏心の調整による被削歯車歯形精度の向上

概要

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Recent studies showed that the tooth profile errors of hobbed gears were mainly caused by the geometrical error and eccentricity error and eccentricity of the hob under good cutting conditions. Because manufacturing a highly accurate hob is very difficult and maybe a highly accurate gear is not obtained even though a highly accurate hob is used, it is very important to investigate how to improve the actual meshing accuracy of the hob in the cutting process. In general, the meshing error of the edges caused by the hob eccentricity is nearly sinusoidal and also the geometrical errors often contain sinusoidal components. On the basis of these facts, this report proposes a method which makes both of the sinusoidal error components cancel each other out in order to obtain an accurately hobbed gear. The test results clearly show its usefulness to improve the tooth profile errors of the gears.
1988-07-25