A grinding machine, includes a pivotable tool spindle with a workpiece spindle adapted to receive a gearwheel workpiece and for rotationally driving the gearwheel workpiece about a workpiece spindle axis, wherein the tool spindle is configured to receive a grinding tool and rotationally drive the grinding tool about a tool spindle axis, and is carried by a pivot axis in such a way that the tool spindle together with the grinding tool can be pivoted about the pivot axis, and wherein the pivot axis (A) intersects the workpiece spindle axis (C) in a common plane projection, and wherein the pivot axis is offset laterally relative to the workpiece spindle axis and does not intersect the workpiece spindle axis.

A grinding machine, includes a pivotable tool spindle with a workpiece spindle adapted to receive a gearwheel workpiece and for rotationally driving the gearwheel workpiece about a workpiece spindle axis, wherein the tool spindle is configured to receive a grinding tool and rotationally drive the grinding tool about a tool spindle axis, and is carried by a pivot axis in such a way that the tool spindle together with the grinding tool can be pivoted about the pivot axis, and wherein the pivot axis (A) intersects the workpiece spindle axis (C) in a common plane projection, and wherein the pivot axis is offset laterally relative to the workpiece spindle axis and does not intersect the workpiece spindle axis.

Provided is an internal gear grinding method that makes it possible to grind an internal gear having arc-shaped teeth in a short amount of time. To this end, an internal gear having arc-shaped teeth and a threaded grindstone with a barrel shape having blades with a shape corresponding to the arc shape of the teeth are engaged at a predetermined axis intersection angle, and the internal gear and the threaded grindstone are made to rotate in synchronization with each other so that the tooth surface of the internal gear is ground by the blade surface of the threaded grindstone.

Provided is an internal gear grinding method that makes it possible to grind an internal gear having arc-shaped teeth in a short amount of time. To this end, an internal gear having arc-shaped teeth and a threaded grindstone with a barrel shape having blades with a shape corresponding to the arc shape of the teeth are engaged at a predetermined axis intersection angle, and the internal gear and the threaded grindstone are made to rotate in synchronization with each other so that the tooth surface of the internal gear is ground by the blade surface of the threaded grindstone.

The present disclosure relates to a method for the gear manufacturing machining of a workpiece by a diagonal-generating method, in which the workpiece is subjected to gear tooth machining by the rolling off of a tool, wherein an axial feed of the tool takes place during the machining with a diagonal ratio given by the ratio between the axial feed of the tool and the axial feed of the workpiece. According to the present disclosure, the tool has a conical basic shape.

The present disclosure relates to a method for the gear manufacturing machining of a workpiece by a diagonal-generating method, in which the workpiece is subjected to gear tooth machining by the rolling off of a tool, wherein an axial feed of the tool takes place during the machining with a diagonal ratio given by the ratio between the axial feed of the tool and the axial feed of the workpiece. According to the present disclosure, the tool has a conical basic shape.

A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method with a modified tool, wherein a modification in the generating pattern has a constant value in a first direction of the tool and is given by a function F.sub.Ft1 in a second direction of the tool, which extends perpendicular to the first direction, and/or wherein the modification is produced in that the position of the dresser to the tool is varied during dressing in dependence on the angle of rotation of the tool and/or on the tool width position, wherein the modification of the tool produces a corresponding modification on the surface of the workpiece, and wherein the modification of the workpiece produced by the modification is superposed by a profile modification and/or a modification caused by a change of the machine kinematics during the machining process.

A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method with a modified tool, wherein a modification in the generating pattern has a constant value in a first direction of the tool and is given by a function F.sub.Ft1 in a second direction of the tool, which extends perpendicular to the first direction, and/or wherein the modification is produced in that the position of the dresser to the tool is varied during dressing in dependence on the angle of rotation of the tool and/or on the tool width position, wherein the modification of the tool produces a corresponding modification on the surface of the workpiece, and wherein the modification of the workpiece produced by the modification is superposed by a profile modification and/or a modification caused by a change of the machine kinematics during the machining process.

The present disclosure relates to generating a modified gear flank geometry on an active surface of the workpiece by generation grinding or honing. In at least one example, the modified gear flank geometry of the workpiece may be generated on the active surface of the workpiece by variation of an engagement depth of a tool into the workpiece in dependence on an angle of rotation of the tool. Additionally, the workpiece may comprise a cylindrical spur gear, a helical gear, a spherical gear, or a conical gear. Further, in one or more examples, the modified gear flank geometry of the workpiece includes at least one of a profile waviness or a defined periodic flank waviness.

The present disclosure relates to generating a modified gear flank geometry on an active surface of the workpiece by generation grinding or honing. In at least one example, the modified gear flank geometry of the workpiece may be generated on the active surface of the workpiece by variation of an engagement depth of a tool into the workpiece in dependence on an angle of rotation of the tool. Additionally, the workpiece may comprise a cylindrical spur gear, a helical gear, a spherical gear, or a conical gear. Further, in one or more examples, the modified gear flank geometry of the workpiece includes at least one of a profile waviness or a defined periodic flank waviness.