Abstract: In a method of machining a workpiece (60) having first and second gearings (61, 62), a reference tooth structure of the first gearing (61) is identified. The reference tooth structure is then measured with a reference measuring device (140) to determine a reference rotational angular position of the workpiece. Subsequently, the second gearing (62) is machined in such a way that the second gearing obtains a rotational angular position which is in a predetermined relationship to the determined reference rotational angular position.

Abstract: A method for automatic process monitoring during continuous generating grinding of pre-toothed workpieces, which permit early detection of grinding wheel breakouts. A generating grinding machine is used to machine multiple workpieces by clamping them onto at least one workpiece spindle and successively moving them into generating engagement with a grinding wheel. At least one measured variable is monitored during the machining to indicate if a grinding wheel breakout exists. If a grinding wheel breakout is indicated, the grinding wheel is examined automatically by moving a dressing tool over the tip region of the grinding wheel and generating a contact signal. A breakout is determined by analyzing the contact signal and, if present, the grinding wheel is dressed as often as necessary in order to eliminate the grinding wheel breakout. Alternatively, the checking of the grinding wheel is carried out directly at the first dressing stroke.

Abstract: An adjusting device for a machine tool comprises a base body (1), a movable body (2) movable along a moving direction (X) relative to the base body, and a drive (3) for moving the movable body relative to the base body. In order to effectively damp vibrations between the movable body and the base body (in particular so-called stray vibrations) and yet still enable rapid positioning movements of the movable body relative to the base body, the adjusting device comprises an auxiliary body (10) which can be releasably fixed to the base body and, in the released state, can be moved together with the movable body relative to the base body. The adjusting device also comprises at least one vibration damper (11) which is arranged between the auxiliary body and the movable body.