Method of preparing a machining process and chamfering station

A method of preparing a machining process of a toothed workpiece (1) rotatably drivable around its rotation axis (10), the machining process to be executed by a chamfering tool (11) rotatably drivable around its rotation axis (B10), wherein, for establishing a synchronized matching engagement of said chamfering tool with the workpiece toothing (2), a contact with the workpiece (1) can be or is generated by performing a movement via a first positioning axis (Z10) or a second positioning axis (Y10), and, by means of a surveillance of a movement dedicated to an axis of motion (B10;

• C10), a contact to the workpiece (1) is used for establishing information about a relative rotary position of the workpiece,
• characterized in that the contact is made by a portion (12) of said chamfering tool (11) and the dedicated axis of motion (B10;
• C10) is an axis capable to move or rotate the workpiece or said chamfering tool but which is not the positioning axis (Z10;
• Y10).