PROCEDIMENTO PER OTTENERE UN MOVIMENTO SUPPLEMENTARE DI ROTAZIONE DI UN PEZZO IN LAVORO COSTITUITODA UNA RUOTA DENTATA A DENTI OBLIQUI IN UNA MACCHINA DENTATRICE A COMANDO ELETTRONICO FORZATO OPERANTE SECONDO IL METODO DELLA GENERAZIONE A VITE E DISPOSITIVO PER LASUA ATTUAZIONE

摘要

The present invention relates to a method and apparatus for the production of an additional rotational motion of a helically toothed gear workpiece in an electronically, positively controlled gear processing machine operating according to the hobbing method which has separate rotating drives for workpiece and tool. In this process, a series of impulses are supplied to a controller. These impulses are compared to each other for the production of a control signal for the readjustment of the workpiece drive. The series of impulses are dependent upon the rate of rotation of each of the drives. An additional signal is supplied which is derived from the longitudinal advance of the workpiece in relation to the tool.