Bevel gear cutting machines having multiple numerically-controllable axes, a workpiece spindle, which accommodates a bevel gear coaxially in relation to a workpiece spindle axis, and a deburring device having a deburring spindle for accommodating at least one first deburring tool. The bevel gear cutting machines may chamfer tooth edges of the bevel gear in two passes, where, in a first pass, first chamfers are provided on the tooth edges by using the first deburring tool, and, in a second pass, second chamfers are provided in the region of the first chamfers by using the first deburring tool or by using a second deburring tool in a continuous procedure, in which the bevel gear and the first or second deburring tool rotate in a coupled manner while engaged with one another.

Device for chamfer machining of a toothed workpiece, wherein the device comprises at least one workpiece spindle having a rotatably mounted workpiece holder for holding the workpiece, and a machining head that is movable relative to the workpiece spindle via at least one linear axis, wherein at least one tool spindle having a rotatably mounted tool holder for holding at least one tool for machining a workpiece held in the workpiece holder is provided on the machining head, and wherein a milling spindle having a rotatably mounted milling cutter holder for holding an end milling cutter for chamfer machining an edge of a toothing of the workpiece held in the workpiece holder is provided on the machining head, wherein the work angle of an end milling cutter held in the milling cutter holder relative to the edge of the toothing can be set via a first pivot axis.

A method for chamfering toothed gears which enables lengthening of a life of a tool is provided. The chamfering method is for sequentially chamfering the line intersection portions 23 between tooth flanks 21 and end faces 22 of teeth 2 with end cutting edges 122. A pitch Pb of the end cutting edges 122 is set to five times a pitch Pa of the teeth 2. As a result, at a chamfering step of chamfering line intersection portions 23 of the teeth 2, a circumferential speed of the end cutting edges 122 can be made faster than a circumferential speed of the teeth 2. Consequently, a difference in circumferential speed between the end cutting edges 122 and the teeth 2 can be utilized in chamfering and thus a cutting resistance can be reduced during the chamfering. Therefore, a life of the tool 100 can be lengthened.