Abstract: The invention relates to a method for producing and deburring toothings on work pieces (6), comprising two workpiece spindles (3, 3?), comprising a hobbing tool (12) and comprising a deburring device (10), wherein the workpieces (6) are automatically clamped into the workpiece spindles (3, 3?), wherein the workpieces (6) are toothed with the hobbing tool (12) and then deburred, comprising the following method steps: a. receiving an unmachined workpiece (6) in a first loading position (19) via a first workpiece spindle (3) and transporting the workpiece (6) to the hobbing tool (12); b. carrying out a mill cut; c. placing down the workpiece (6) in the first loading position (19) and receiving a further unmachined workpiece (6); d. transporting the workpiece (6) machined with the mill cut to the second loading position (19?); e. receiving the workpiece (6) in the second loading position (19?) via the second workpiece spindle (3?) and transporting the workpiece (6) to the deburring tool (10); f.

Abstract: A grinding apparatus has a support frame and first and second carriages horizontally displaceable on the frame. Respective first and second workpiece spindles are each capable of holding and rotating a workpiece and are vertically displaceable on the first and second carriages. Respective first and second grinders on the frame carry respective first and second grinding wheels and are oriented to engage and machine workpieces held and rotated by the workpiece spindles. One of the grinders is movable horizontal or vertically on the frame.

Abstract: A grinding apparatus has a support frame and first and second carriages horizontally displaceable on the frame. Respective first and second workpiece spindles are each capable of holding and rotating a workpiece and are vertically displaceable on the first and second carriages. Respective first and second grinders on the frame carry respective first and second grinding wheels and are oriented to engage and machine workpieces held and rotated by the workpiece spindles. One of the grinders is movable horizontal or vertically on the frame.