METHOD FOR CORRECTING ROUNDNESS OR STRAIGHTNESS ERRORS AFFECTING ELONGATED WORKPIECES AND MEASURING DEVICE, CORRECTION MACHINE AND CORRECTION SYSTEM

摘要

When straightening concentricity or degree errors on elongated workpieces (30) with at least one tooth area (30A), which has high and low points of its teeth, such as on toothed shafts or on toothed racks, the layers of the surfaces of the surface of the not yet straightened that form a reference plane Workpiece (30) on or almost on the active pitch circle lying between the high and low points of the teeth or the operating pitch circle of the toothing to determine deviations from the ideally straight workpiece (30), at least in points or sections. The resulting measurement data are used by the straightening machine in such a way that a straightening workpiece that is as straight as possible, at least in the toothing area, is achieved by straightening. The height positions of the tooth heads of the toothing area forming the high points of the teeth as well as the height positions of adjacent tooth surfaces lying in the reference plane are recorded and the height differences of the height positions tooth heads to the height positions of neighboring tooth surfaces lying in the reference plane are determined. The height differences are used as correction measurement data by the straightening machine (40) such that these height differences are taken into account when straightening the workpiece (30) to a workpiece (30) that is as straight as possible in the reference plane.