鼓形ウォームホイール用ホブに関する研究 : 第2報, 工具軸と被削ホブ軸間の軸角を加味した設計

抄録

A concept for a new type of hob for an hourglass worm wheel has been proposed. The hob can be used repeatedly when the cutting edges become worn. This concept was applied to the design of a hob cutter for the principal part of the wheel tooth surface generation of the hourglass worm gear generated by use of a tool with a conical surface. In this paper, the authors, increasing design elasticity, describe design of such a hob to generate the whole tooth surface. Numerical calculation results show that the hob generates not only the secondary part of the wheel tooth surface but also the primary part of it with high accuracy after regrinding of its face surface.