Abstract: 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.

Abstract: A method for grinding the toothing or the profile of a workpiece that has an axis of rotation and wherein an allowance is ground away from the surface of the tooth flanks of the toothing or the profile. The method includes the following steps: a) measuring the position of the surface of the tooth flanks of the toothing or the profile, wherein the measuring is carried out in at least two positions of the workpiece, which are arranged offset in the direction of the axis of rotation; b) determining the actually existing allowance of the workpiece that has not yet been ground, based on the measurement values from step a); c) determining at least one grinding parameter so that the material removal per time has a predetermined value or does not exceed a predefined value during grinding; and d) grinding the workpiece with the grinding parameters established in step c).

Abstract: A method for grinding a gear toothing, in which a target value with a tolerance range is defined for the tooth width.

Abstract: A method for dressing a multiple thread grinding worm by a dressing tool, in which the abrasive surfaces of the individual threads of the grinding worm are successively profiled with the dressing tool. The dressing is carried out in at least two threads with different dressing parameters so that the profiling of the abrasive surfaces of the threads differ from each other. The dressing parameters are selected so that the abrasive surfaces of at least two threads, viewed in the direction of the helix of the thread, differ from one another, and/or that the abrasive surfaces of the individual threads are profiled by topological dressing. A plurality of linear dressing strokes are performed over the height of the abrasive surface. The dressing tool is guided in the radial direction of the grinding worm at predetermined distances. The distances are constant in each thread but differing in at least two threads.

Abstract: A method for grinding a gear wheel by a worm grinding wheel in a grinding machine, wherein the tooth flanks of the gear wheel are ground by the abrasive flanks of the profiling of the worm grinding wheel. In order to increase the productivity of the grinding, the method includes the following steps: a) calculating the engagement ratios between the abrasive flanks of the profiling of the worm grinding wheel and the tooth flanks of the gear wheel, wherein the size of the profile forming zone is determined; b) determining a geometry modified in respect of the geometry determined according to step a) such that the profile forming zone is minimal; c) profiling the worm grinding wheel with the geometry which has thus resulted; d) grinding the gear wheel by the worm grinding wheel profiled according to step c).

Abstract: A method for producing a workpiece having a toothing or profiling, including the steps: a) soft machining the workpiece to produce the toothing or profiling; b) hardening the toothing or profiling; c) hard fine machining the toothing or profiling with a first tool that is a grinding worm, a grinding wheel or a honing wheel, wherein the first tool has a base body with a first elastic modulus; d) reinforcement of at least a section of the workpiece by shot blasting; and, following step d), e) repeated hard fine machining of the toothing or profiling with a second tool that is a grinding worm, a grinding wheel, a set of grinding wheels or a honing wheel. The second tool has a plastic or rubber base body with a second elastic modulus which is at most 33% of the first elastic modulus.

Abstract: A method for producing a workpiece having a toothing or profiling, including the steps: a) Soft machining the workpiece, in which the toothing or profiling is produced; b) Hardening the toothing or profiling; c) Hard fine machining the toothing or profiling, wherein the toothing or profiling is machined with a first tool that is a grinding worm, a grinding wheel or a honing wheel, wherein the tool has a base body with a first elastic modulus; d) Reinforcement of at least a section of the workpiece by a shot blasting process; and, following step d): e) Repeated hard fine machining of the toothing or profiling, wherein the toothing or profiling is machined with a second tool that is a grinding worm, a grinding wheel, a set of grinding wheels or a honing wheel. The second tool has a base body with a second elastic modulus which is at most 33% of the first elastic modulus. The second tool has a base body made of a plastic or rubber.

Abstract: A method for dressing a grinding worm using a dressing roll that engages the grinding worm to profile its helical grinding profile. The abrasive profile of the dressing roll is at least partially tooth-shaped in a radial cross section and extends radially from a root region to a tip region. The dressing roll is produced by: a) producing a counterpart having an inner surface; b) positioning and fixing a layer of abrasive particles on the tooth-shaped surface; c) producing a disk-shaped base body of the dressing roll and connecting the base body with a carrier layer for the abrasive particles; d) demolding the base body; e) profiling the base body. Step a) includes providing the counterpart with the surface so that the distance between the profiled surface and the abrasive profile changes during advancing from the root region to the tip region at least at one flank of the surface, measured in the radial cross section perpendicular to the profiled surface.

Abstract: A method for dressing a grinding worm using a dressing roll that engages the grinding worm to profile its helical grinding profile. The dressing roll is produced by: a) producing a disk-shaped base body a profiled surface for receiving a layer of abrasive particles, wherein the surface is at least partially tooth-shaped in a radial cross section, b) positioning the abrasive particles on the profiled surface, c) profiling the base body provided with abrasive particles by removing outer sections of the abrasive particles with a profiling tool so that the abrasive profile of the dressing roll is created. Production of the profiled surface takes place in step a) so that the distance between the profiled surface and the abrasive profile changes during advancing from the root region to the tip region at a flank of the tooth-shaped surface, measured in the radial cross section perpendicular to the profiled surface.

Abstract: A method for dressing a grinding worm using a dressing roll that engages the grinding worm to profile its helical grinding profile. The dressing roll is produced by: a) producing a disk-shaped base body a profiled surface for receiving a layer of abrasive particles, wherein the surface is at least partially tooth-shaped in a radial cross section, b) positioning the abrasive particles on the profiled surface, c) profiling the base body provided with abrasive particles by removing outer sections of the abrasive particles with a profiling tool so that the abrasive profile of the dressing roll is created. Production of the profiled surface takes place in step a) so that the distance between the profiled surface and the abrasive profile changes during advancing from the root region to the tip region at a flank of the tooth-shaped surface, measured in the radial cross section perpendicular to the profiled surface.

Abstract: A method for dressing a grinding worm using a dressing roll that engages the grinding worm to profile its helical grinding profile. The abrasive profile of the dressing roll is at least partially tooth-shaped in a radial cross section and extends radially from a root region to a tip region. The dressing roll is produced by: a) producing a counterpart having an inner surface; b) positioning and fixing a layer of abrasive particles on the tooth-shaped surface; c) producing a disk-shaped base body of the dressing roll and connecting the base body with a carrier layer for the abrasive particles; d) demolding the base body; e) profiling the base body. Step a) includes providing the counterpart with the surface so that the distance between the profiled surface and the abrasive profile changes during advancing from the root region to the tip region at least at one flank of the surface, measured in the radial cross section perpendicular to the profiled surface.

Abstract: A method for hard fine machining of a workpiece with a worm-shaped cutting tool, wherein the workpiece has a profiling along its circumference. The cutting tool has a machining surface. A hard machining process of the profiling is carried out at simultaneous synchronized rotation of the workpiece around its axis and of the cutting tool around its axis with given meshing of the machining surface into the profiling by moving the cutting tool in the direction of the axis of the cutting tool. A shift movement is superposed to the cutting tool in the direction of the axis of the cutting tool during the hard machining. The shift movement includes at least one first section at which the cutting tool is moved in one of its axial directions and of at least one second section at which the cutting tool is moved in the other of its axial directions.

Abstract: A method for hard fine machining of a workpiece with a worm-shaped cutting tool, wherein the workpiece has a profiling along its circumference. The cutting tool has a machining surface. A hard machining process of the profiling is carried out at simultaneous synchronized rotation of the workpiece around its axis and of the cutting tool around its axis with given meshing of the machining surface into the profiling by moving the cutting tool in the direction of the axis of the cutting tool. A shift movement is superposed to the cutting tool in the direction of the axis of the cutting tool during the hard machining. The shift movement includes at least one first section at which the cutting tool is moved in one of its axial directions and of at least one second section at which the cutting tool is moved in the other of its axial directions.