Device and method for hob peeling internally geared wheels and related peeling wheel

A device for cutting teeth into workpiece wheels by hob peeling, comprising:

• a rotationally drivable workpiece spindle to hold the workpiece wheel into which the teeth, are to be machined;
• and a rotationally drivable tool spindle that carries a peeling wheel that has cutting teeth with a regular tooth pitch, by which a tooth spacing of the teeth of the workpiece wheel is determined, wherein a distance between at least some identically shaped teeth of the peeling wheel is equal to a multiple of the regular tooth pitch.

A method for cutting teeth into workpiece wheels by hob peeling, comprising the steps of:

• rotating a workpiece spindle that holds a workpiece wheel into which the teeth are to be cut, rotating a tool spindle that carries a peeling wheel in a fixed speed ratio to the workpiece spindle;
• and feeding forward the peeling wheel, which comprises cutting teeth with a regular tooth pitch by which tooth spacing of the teeth of the workpiece wheel is determined, in an axial direction of the workpiece wheel by relative movement between the tool spindle and the workpiece spindle, including using peeling wheel in which a distance between at least some identically shaped teeth of the peeling wheel is equal to a multiple of the regular tooth pitch.

A peeling wheel, comprising cutting teeth with a regular tooth pitch, by which a tooth spacing of a set of teeth of a workpiece wheel into which the teeth are to be cut is determined, wherein a plurality of cutting teeth are arranged around a rotational axis in positions determined by the tooth pitch, each of the cutting teeth having cutting edges, wherein a distance between at least some identically shaped teeth of the peeling wheel is equal to a multiple of the regular tooth pitch.