Method and device for finish machining of ball raceways in a spindle nut for a ball screw drive

摘要

The invention relates to a method for finishing ball raceways in a spindle nut for a ball screw drive. The workpiece (2) to be machined is set into reversing rotary movements about its longitudinal axis (3) and a finishing tool (7) clamped in a tool holder (6) is brought into contact with a ball raceway (11) to be machined. Depending on the angle of rotation of the workpiece rotation, the tool holder (6) executes axial adjusting movements parallel to the longitudinal axis (3) of the workpiece (2) and oscillating rotary movements and an oscillation axis (10) orthogonal thereto. The finishing tool (7) is floatingly supported in the tool holder (6) in the direction of the axial positioning movement of the tool holder (6) on spring elements (12). The invention further relates to a tool holder (6) for carrying out the method described.