A gear cutting method includes: machining of a gearing of a component by a gear cutting machine, wherein during the machining, axis data of at least one machine axis of the machine, are recorded and/or wherein sensor data of a sensor of the machine, are recorded during the machining; providing the recorded axis data in relation to one revolution of the component as rotation-related axis data and/or providing the recorded sensor data in relation to one revolution as rotation-related sensor data; rolling test of the toothed component by a rolling test bench, wherein measurement data of the test are provided in relation to one revolution during the test as rotation-related measurement data; comparing the axis and/or sensor data with measurement data of the test to determine correlations between gear deviations according to measurement data of the test and machine deviations according to the axis and/or sensor data.

Method, comprising the method steps of: generating grinding of toothings (16), wherein a respective toothing (16) is machined by means of a plurality of grinding strokes and wherein a centering position for positioning a grinding tool (10) relative to the respective toothing (16) is predetermined for the grinding strokes, and adapting the centering position on the basis of a performance parameter (M2) of a workpiece spindle (6) accommodating the respective toothing (16).

A grinding system includes a grinding device that meshes and synchronously rotates a gear-shaped workpiece and a grinding tool, thereby grinding a workpiece tooth surface of the workpiece with a helical grinding tooth surface of the grinding tool, an information acquisition unit configured to acquire information indicating a synchronization error between the workpiece and the grinding tool during grinding of the workpiece tooth surface, and a determination unit configured to determine, based on the synchronization error, whether an abnormality has occurred in the grinding of the workpiece tooth surface.

A machine tool for the production of gearings, having a workpiece spindle, having a tool spindle and having a device for finding tooth spaces of a pre-toothed workpiece held on the workpiece spindle, wherein the device for finding tooth spaces has a mechanical resistance element for insertion into the tooth spaces of the pre-toothed workpiece.

The invention relates to a method for producing or machining a toothing (2) on a workpiece (3), in which method the workpiece, which is rotationally driven about its axis of rotation (C), is brought into rolling machining engagement with tool toothing (5) rotating about an axis of rotation (C2) which is, in particular, at a non-null crossed-axes angle to the axis of rotation of the workpiece, wherein the machining operation is automatically monitored, using sensors to record same automatically, already at the machine operation stage for a recurring irregularity originating from tool wear (52), in particular higher wear of at least one tool tooth (51) compared to other tool teeth.

The invention relates to a method for producing or machining, by cutting, an identical set of teeth on each of a plurality of workpieces, in particular at least 4 workpieces, of a workpiece batch on one or more gear-cutting machines (100) having a gear-cutting tool (S), which has a set of teeth having rake faces (5) and having an axis of rotation (B1), in rolling machining engagement, in which method, in the event that a deviation of a set of teeth from the tooth profile sought for said set of teeth is detected or expected, a countermeasure that counteracts said deviation is determined and the production/machining of additional workpieces of said workpiece batch is continued using the countermeasure, the countermeasure being, at least in part, a change in the position of the rake faces relative to the axis of rotation of the tool, which change is brought about by means of grinding performed on the gear-cutting machine or at a grinding machine (140) that belongs to the machine group of the gear-cutting machine.

A gear-cutting machine comprises a workpiece holder rotatable about a first axis of rotation, a machining head comprising a tool holder, and a sensor arranged on the machining head of the gear-cutting machine for measuring a workpiece that is held in the workpiece holder of the gear-cutting machine. The machining head is displaceable relative to the workpiece holder in the workpiece width direction via a first linear movement axis Z of the gear-cutting machine. The disclosed method comprises ascertaining a first calibration value by measuring the workpiece at a first workpiece width position, ascertaining a second calibration value by measuring the workpiece at a second workpiece width position, and determining a third calibration value for the relative orientation of the first linear movement axis Z of the machining head with respect to the first axis of rotation of the workpiece holder from the first and second calibration value.

A method for monitoring a machining process in which tooth flanks of pre-toothed workpieces (23) are machined with a finishing machine (1) is disclosed. As part of the method, a plurality of measurement values are recorded while a finishing tool (16) is in machining engagement with a workpiece. Among them are values of a power indicator which indicates a current power consumption of the tool spindle during the machining of the tooth flanks of the workpiece. A normalization operation is applied to at least some of the measurement values or to values of a quantity derived from the measurement values in order to obtain normalized values. The normalization operation depends on at least one of the following parameters: geometrical parameters of the finishing tool, in particular its outside diameter, geometrical parameters of the workpiece and setting parameters of the finishing machine, in particular radial infeed and axial feed.