Methods and apparatuses enabling/improving retractability of a first bevel gear that with at least one second bevel gear forms a transmission, performing: a retractability analysis including: ascertainment whether during the installation in a housing the first gear can be engaged by an axial insertion movement with the second gear and/or the first gear can be separated from the engagement with the second gear by an axial retraction movement, and if a collision results during the engagement or separation between teeth of the gears ascertainment of a flank modification of the teeth of the first and/or second gears to avoid the collision, ascertainment of second machine data of based on this modification, and finish machining in a bevel gear cutting machine to perform the flank modification according to the second machine data on the teeth of the respective gears.

A machine tool for machining pre-toothed workpieces has a workpiece carrier, a workpiece spindle with a workpiece spindle housing and a workpiece spindle shaft. The machine tool has a meshing sensor, a calibration piece, and a sensor controller which is designed to perform the following procedure: Moving the meshing sensor relative to the workpiece spindle into a calibration position in which the meshing sensor is located at the calibration piece 10; determining a response behavior of the meshing sensor by the sensor controller moving the meshing sensor relative to the calibration piece and meanwhile receiving sensor calibration signals of the meshing sensor, and moving the meshing sensor into a workpiece measuring position in which the meshing sensor is located at the workpiece, the workpiece measuring position depending on the determined response behavior.

A machine tool for machining pre-toothed workpieces has a workpiece carrier, a workpiece spindle with a workpiece spindle housing and a workpiece spindle shaft. The machine tool has a meshing sensor, a calibration piece, and a sensor controller which is designed to perform the following procedure: Moving the meshing sensor relative to the workpiece spindle into a calibration position in which the meshing sensor is located at the calibration piece 10; determining a response behavior of the meshing sensor by the sensor controller moving the meshing sensor relative to the calibration piece and meanwhile receiving sensor calibration signals of the meshing sensor, and moving the meshing sensor into a workpiece measuring position in which the meshing sensor is located at the workpiece, the workpiece measuring position depending on the determined response behavior.

The present disclosure relates to a machining head for a gear manufacturing machine having at least one driven motor spindle and at least one counter-spindle, wherein a tool arbor having at least one tool arranged thereon is mounted between the motor spindle and the counter-spindle, and wherein at least one balancing device is integrated within the driven motor spindle and at least one balancing device is integrated within the counter-spindle.

The present disclosure relates to a machining head for a gear manufacturing machine having at least one driven motor spindle and at least one counter-spindle, wherein a tool arbor having at least one tool arranged thereon is mounted between the motor spindle and the counter-spindle, and wherein at least one balancing device is integrated within the driven motor spindle and at least one balancing device is integrated within the counter-spindle.

A hard finishing machine for machining workpieces with at least one gearing, in particular a gear grinding machine, including a spindle rotated by a motor, wherein the spindle has, at a first axial position, a first sensor system for detecting rotation of the spindle at the first axial position, wherein the first sensor system is connected to a control unit for controlling rotation of the spindle. A second sensor system is arranged at a second axial position of the spindle, which is designed to detect rotation of the spindle at the second axial position, wherein the second sensor system is connected to a measuring device, wherein a further sensor system is arranged at the first axial position of the spindle, which is designed to detect rotation of the spindle at the first axial position and is also connected to the measuring device.

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 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.