The present invention shows a process for gear manufacturing machining a workpiece by a tool on a gear manufacturing machine, wherein the workpiece is machined by a generating machining process in which the tool for gear manufacturing machining rolls off on the workpiece at a predefined center distance and axial cross angle, wherein the gear manufacturing machining preferably takes place on two flanks, with a desired tooth trace shape and/or tooth thickness of the gearing being generated by the generating machining process. The process is characterized in that an additional condition is predefinable and in that the center distance and the axial cross angle are determined in dependence on the desired tooth trace shape and/or tooth thickness of the gearing and on the additional condition.

A method for continuous generating grinding of at least two gear workpieces with a topologically modified grinding worm comprising a topologically modified worm region to grind tooth flanks which are topologically modified on the gear workpieces, wherein the method comprises at least the following steps: a) providing a first gear workpiece, b) performing a topological generating grinding operation by carrying out relative movements between the first gear workpiece and the grinding worm, which comprises a relative feed movement, a relative axial feed which occurs parallel or obliquely to the tool rotation axis, and a relative shift movement, c) providing the second gear workpiece, d) performing a relative jumping motion extending substantially parallel or obliquely to the tool rotation axis between the second gear workpiece and the grinding worm, e) repeating step b) for the second gear workpiece.

A method for continuous generating grinding of at least two gear workpieces with a topologically modified grinding worm comprising a topologically modified worm region to grind tooth flanks which are topologically modified on the gear workpieces, wherein the method comprises at least the following steps: a) providing a first gear workpiece, b) performing a topological generating grinding operation by carrying out relative movements between the first gear workpiece and the grinding worm, which comprises a relative feed movement, a relative axial feed which occurs parallel or obliquely to the tool rotation axis, and a relative shift movement, c) providing the second gear workpiece, d) performing a relative jumping motion extending substantially parallel or obliquely to the tool rotation axis between the second gear workpiece and the grinding worm, e) repeating step b) for the second gear workpiece.

A continuous-generation gear grinding method of conducting a gear grinding process such that while a thread-shaped grinding wheel is rotated around an axial center thereof and fed in an axial center direction, a position coming into contact with abrasive grains is constantly changed in the presence of a water-soluble grinding fluid by performing a grinding feed in a direction parallel to an axial center of a gear blank and by serially rotating the gear blank around the axial center, the grinding wheel being a vitrified grinding wheel having abrasive grains bonded by a vitrified bond with pores formed among the abrasive grains, and the abrasive grains having a grain size of F120 to F180.

A continuous-generation gear grinding method of conducting a gear grinding process such that while a thread-shaped grinding wheel is rotated around an axial center thereof and fed in an axial center direction, a position coming into contact with abrasive grains is constantly changed in the presence of a water-soluble grinding fluid by performing a grinding feed in a direction parallel to an axial center of a gear blank and by serially rotating the gear blank around the axial center, the grinding wheel being a vitrified grinding wheel having abrasive grains bonded by a vitrified bond with pores formed among the abrasive grains, and the abrasive grains having a grain size of F120 to F180.

Method for the grinding of a gear wheel workpiece using a dressable worm grinding wheel, wherein the worm grinding wheel is rotationally driven about a tool axis of rotation and the gear wheel workpiece is rotationally driven about a workpiece axis of rotation, and relative movements are executed between the worm grinding wheel and gear wheel workpiece, and wherein after the execution of a dressing procedure of the worm grinding wheel, which is carried out by means of a rotationally-drivable dressing unit, the following steps are carried out: executing a relative shift movement between the worm grinding wheel and gear wheel workpiece parallel to the tool axis of rotation, executing an axially-parallel relative movement between the worm grinding wheel and gear wheel workpiece in parallel or diagonally to the workpiece axis of rotation,
wherein a ratio between the shift movement and axially-parallel relative movement is specified, which is variable.

A method for the dressing of a multi-thread grinding worm by a dressing roll, wherein the grinding worm has at least two screw channels which are arranged parallel to another, which screw channels extend helically around an axis of the grinding worm and wherein the dressing roll has at least two adjacent dressing profiles which are arranged along an axis of the dressing roll, wherein the dressing profiles of the dressing roll are guided simultaneously through adjacent screw channels of the grinding worm during the dressing of the grinding worm. To improve the precision of the dressing the method includes the steps: a) Execution of a first partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through first adjacent screw channels of the grinding worm; b) Execution of at least one second partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through second adjacent screw channels of the grinding worm, wherein the second adjacent screw channels are, compared with step a), offset in the direction of the axis of the grinding worm by at least one screw channel of the grinding worm.

A method for the dressing of a multi-thread grinding worm by a dressing roll, wherein the grinding worm has at least two screw channels which are arranged parallel to another, which screw channels extend helically around an axis of the grinding worm and wherein the dressing roll has at least two adjacent dressing profiles which are arranged along an axis of the dressing roll, wherein the dressing profiles of the dressing roll are guided simultaneously through adjacent screw channels of the grinding worm during the dressing of the grinding worm. To improve the precision of the dressing the method includes the steps: a) Execution of a first partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through first adjacent screw channels of the grinding worm; b) Execution of at least one second partial dressing process at which the dressing profiles of the dressing roll are guided simultaneously through second adjacent screw channels of the grinding worm, wherein the second adjacent screw channels are, compared with step a), offset in the direction of the axis of the grinding worm by at least one screw channel of the grinding worm.

A method for grinding a workpiece with a toothing or a profile, in which, in a single workpiece clamping operation in the grinding machine, the toothing or the profile is pre-machined using a rough-grinding tool in a first step and then the toothing or the profile is finished using a smooth-grinding tool in a second step. Simultaneously with the first working step, the toothing or the profile is measured by at least one sensor, wherein a geometric variable defining the toothing or the profile or a variable linked to the geometry is measured, and wherein the deviation of the measured geometric variable or of the variable linked to the geometry is determined from a target value in the machine control.

A method for grinding a workpiece with a toothing or a profile, in which, in a single workpiece clamping operation in the grinding machine, the toothing or the profile is pre-machined using a rough-grinding tool in a first step and then the toothing or the profile is finished using a smooth-grinding tool in a second step. Simultaneously with the first working step, the toothing or the profile is measured by at least one sensor, wherein a geometric variable defining the toothing or the profile or a variable linked to the geometry is measured, and wherein the deviation of the measured geometric variable or of the variable linked to the geometry is determined from a target value in the machine control.