Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present disclosure relates to a method for the manufacture of a workpiece having a corrected gear geometry and/or a modified surface structure, in particular by a hard finishing process, in particular generation grinding or honing. Provision is made in this respect that it is achieved by a direct generation of a wobble movement and/or of an eccentricity of the tool that a modification, in particular a profile modification or profile waviness, and/or a defined periodic flank waviness is generated on the active surface of the workpiece machined therewith.

Abstract: 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.

Abstract: The present disclosure relates to a machining head for a gear cutting machine, in particular a hobbing or hob grinding machine, for toothing a workpiece, in particular a worm shaft or a toothed rack, wherein the machining head comprises at least two tool spindles arranged one beside the other.

Abstract: A method for dressing a tool of a gear grinding machine, including a workpiece holder and a tool holder, is provided. The tool holder, arranged on a machining head, is rotatable about a first axis of rotation, and is linearly movable via a first linear axis of movement, wherein a workpiece clamped in the workpiece holder can be machined by a tool clamped in the tool holder. The machine furthermore includes a dressing unit with a dressing tool holder rotatable about a second axis of rotation, wherein a dressing tool accommodated in the dressing tool holder is used for dressing the tool clamped in the tool holder. During the dressing operation the machining head is pivoted about the swivel axis in dependence on a tool profile and is linearly moved with the first linear axis of movement.

Abstract: The present disclosure relates to a method for tooth-machining workpieces on a gear cutting machine, wherein the gear cutting machine includes at least one main machining station and at least one secondary station with at least two workpiece spindles. The two workpiece spindles are alternately traversed into the working region of the main machining station and the secondary station. The method further includes a fine toothing step, in which a workpiece arranged at one of the workpiece spindles is subjected to fine toothing at a main machining station, and a secondary machining step, in which a workpiece arranged at one of the workpiece spindles is subjected to secondary machining at a secondary station by material removal and/or material forming.

Abstract: An apparatus for chamfering a toothed workpiece with at least one rotatably mounted workpiece spindle and with at least one machining unit with at least one machining head for chamfering a workpiece clamped in a spindle, wherein the machining unit with at least one machining head exclusively comprises chamfer cutters which permit machining of the workpiece on two different sides of the workpiece, in particular Chamfer Cut units, and that the machining unit with at least one machining head comprises a device for loading chamfer cutters and/or for centering chamfer cutters relative to the position of the toothing on the workpiece.

Abstract: The present disclosure relates to a method for the manufacture of a workpiece having a corrected gear geometry and/or a modified surface structure, in particular by a hard finishing process, in particular generation grinding or honing. Provision is made in this respect that it is achieved by a direct generation of a wobble movement and/or of an eccentricity of the tool that a modification, in particular a profile modification or profile waviness, and/or a defined periodic flank waviness is generated on the active surface of the workpiece machined therewith.

Abstract: A method for dressing a tool of a gear grinding machine, including a workpiece holder and a tool holder, is provided. The tool holder, arranged on a machining head, is rotatable about a first axis of rotation, and is linearly movable via a first linear axis of movement, wherein a workpiece clamped in the workpiece holder can be machined by a tool clamped in the tool holder. The machine furthermore includes a dressing unit with a dressing tool holder rotatable about a second axis of rotation, wherein a dressing tool accommodated in the dressing tool holder is used for dressing the tool clamped in the tool holder. During the dressing operation the machining head is pivoted about the swivel axis in dependence on a tool profile and is linearly moved with the first linear axis of movement.

Abstract: The present disclosure relates to a gear cutting machine, having a workpiece mount and a first tool mount for a respective workpiece and tool. The first tool mount can be set into rotation about a first axis of rotation of the gear cutting machine and the workpiece mount can be set into rotation about a second axis of rotation of the gear cutting machine. The first tool mount is arranged at a machining head which is movable parallel to the second axis of rotation of the workpiece mount at a machining head over at least one first linear movement axis of the gear cutting machine. In accordance with the present disclosure, the gear cutting machine furthermore has a second machining head having a second tool mount which is movable over a second linear movement axis parallel to the first linear movement axis independently of the first machining head.