Processing method of drum gear coupling

Drum type gear couplingThere are generally two methods of processing, namely, processing method and envelope processing method.
Become a processing method-gear machine processing drum teeth, the tooth blank not only rotates, but also moves forward and backward relative to the tool (using the worktable to move forward and backward relative to the tool to achieve), the hob is vertical In the past, this method was mostly used in domestic processing of drum teeth.
Enveloping processing method-gear machine processing drum teeth, the tooth blank only makes a rotary motion, and the hob center makes a circular motion to complete the vertical and horizontal feed to the tooth blank. The hobbing machine is equipped with a hob for processing drum teeth. This method is used when feeding the mechanism, and this method is currently more commonly used.