The present invention improves the calculation accuracy of the phase of gear teeth. This method for calculating a phase of teeth of a gear, the gear having Z number of teeth, includes: a gear teeth amplitude signal acquiring step of acquiring a gear teeth amplitude signal (S(c)) corresponding to at least one revolution of the gear, the gear teeth amplitude signal (S(c)) being formed by an association of an angle (c) of the gear and a value corresponding to irregularities on an outer circumference of the gear within the angle (c); a phase calculating step of calculating a phase (B) of an angular pitch (P) of the gear in accordance with the number (Z) of teeth when the gear teeth amplitude signal (S(c)) is subjected to frequency decomposition; and a gear meshing angle calculating step of calculating a gear meshing angle on the basis of the phase (B) detected by the phase calculating unit.

The present invention improves the calculation accuracy of the phase of gear teeth. This method for calculating a phase of teeth of a gear, the gear having Z number of teeth, includes: a gear teeth amplitude signal acquiring step of acquiring a gear teeth amplitude signal (S(c)) corresponding to at least one revolution of the gear, the gear teeth amplitude signal (S(c)) being formed by an association of an angle (c) of the gear and a value corresponding to irregularities on an outer circumference of the gear within the angle (c); a phase calculating step of calculating a phase (B) of an angular pitch (P) of the gear in accordance with the number (Z) of teeth when the gear teeth amplitude signal (S(c)) is subjected to frequency decomposition; and a gear meshing angle calculating step of calculating a gear meshing angle on the basis of the phase (B) detected by the phase calculating unit.

Method for finishing hardened gears comprising: a first dry removal step of a first stock amount by means of a first cutting tool with defined cutting edges; and a second dry removal step of a second stock amount by means of a second cutting tool with non defined cutting edges.

Method for finishing hardened gears comprising: a first dry removal step of a first stock amount by means of a first cutting tool with defined cutting edges; and a second dry removal step of a second stock amount by means of a second cutting tool with non defined cutting edges.

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 method of producing a workpiece having a modified gearing geometry by a generating method includes generating machining the workpiece in at least one machining stroke with a tool having a modified gearing geometry and a topological modification. Provision is made that the contact path with the workpiece is not shifted on the tool during the machining stroke. In one example, a cylindrical workpiece is machined by an axial generating method. In another example, a conical workpiece is machined by a diagonal generating method, and the diagonal ratio is selected such that the contact path does not shift on the tool during the machining stroke.

A gear manufacturing apparatus for machining a gear workpiece wherein, when at least one of end regions in a tooth trace direction of each tooth of the workpiece is machined, a control device executes a specific machining control for adjusting a relative position of a tool to the workpiece based on information about the relative position computed by setting, as a machining reference position, a position of the tool on an outer edge line in an X-axis-orthogonal cross section different from a normal machining point such that a distance between a center of the tool and a center of the gear workpiece in the X-axis-orthogonal cross section when the at least one of the end regions is machined is larger than when the at least one of the end regions is machined by setting the normal machining point as the machining reference position.

A method of generating machining of a gear-shaped workpiece (23), in particular by continuous generating grinding, in which the gear-shaped workpiece rotates about a workpiece axis (C) while in generating mesh with a generating machining tool. During machining, the gear-shaped workpiece performs an oscillating movement which is superimposed on the rotation of the gear-shaped workpiece. Also disclosed are a clamping device (22) configured to perform the method, and a system comprising such a clamping device and a control device (50). Finally, a generating machining machine comprising a clamping device of the mentioned type is also disclosed.

A method of generating machining of a gear-shaped workpiece (23), in particular by continuous generating grinding, in which the gear-shaped workpiece rotates about a workpiece axis (C) while in generating mesh with a generating machining tool. During machining, the gear-shaped workpiece performs an oscillating movement which is superimposed on the rotation of the gear-shaped workpiece. Also disclosed are a clamping device (22) configured to perform the method, and a system comprising such a clamping device and a control device (50). Finally, a generating machining machine comprising a clamping device of the mentioned type is also disclosed.

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).