Verfahren und Vorrichtung zum Kalibrieren von schrägverzahnten Zahnrädern

摘要

A tooth profile sizing apparatus and method for helical gears, capable of shortening the cycle time of the sizing process so as to improve productivity and to reduce equipment cost. The sizing apparatus comprises a lower punch (7) for carrying thereon a gear blank (W), formed with a rotatable first lower punch (7a) and a non-rotatable second lower punch (7b). A sizing die (8) is rotatably and vertically movable with its inner peripheral teeth (s) in engagement with outer peripheral teeth (p) of the first lower punch. An upper punch (9) for pressing the gear blank into the sizing die is formed with a rotatable first upper punch (9a) and a non-rotatable second upper punch (9b). The upper punch 9 moves in the vertical direction and is provided on its outer circumferential surface with outer peripheral teeth (q).