超硬仕上げホブ切りに関する研究 : 新形ホブ盤による歯車精度の向上

概要

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This paper deals with the improvement of gear accuracy which has been obtained through the practical use of a newly developed hobbing machine. The carbide hob for finishing of large hardened gears has recently become very popular. A cutting edge with a rake angle of -30°degrees is fixed slantly to the cutting direction. The hob is characterized by its performance finishing only tooth surface of a gear without chipping of the cutting edge on a universal hobbing machine. However an accuracy of a gear with a higher hardness is poor. Especially, a tooth profile error appears largely. Therefore, the new CNC hobbing machine with the high rigidity and with the backlash elimination has been developed for large gears. From experimental results, the new machine was found to be effective in finishing of hardened gears.
一般社団法人日本機械学会の論文
1996-11-25