The presented disclosure provides a gear processing apparatus, including a base, a driving unit, a bearing unit, a grinding assembly and a control unit. The driving unit, the bearing unit and the grinding assembly are arranged on the base. The bearing unit is used to carry the gear and can be activated by the driving unit to perform plural first corresponding axial movements relative to the bearing unit. The grinding assembly includes a grinding member. The grinding assembly can be activated by the driving unit to perform plural second corresponding axial movements relative to the bearing unit to contact the tooth surface of the gear by the grinding member. The control unit is used to control the driving module to apply additional movement to at least one of the plural first corresponding axial directions or/and at least one of the plural second corresponding axial directions during the grinding process to change the grinding directions of the tooth surface of the gear generated by the grinding member.

The presented disclosure provides a gear processing apparatus, including a base, a driving unit, a bearing unit, a grinding assembly and a control unit. The driving unit, the bearing unit and the grinding assembly are arranged on the base. The bearing unit is used to carry the gear and can be activated by the driving unit to perform plural first corresponding axial movements relative to the bearing unit. The grinding assembly includes a grinding member. The grinding assembly can be activated by the driving unit to perform plural second corresponding axial movements relative to the bearing unit to contact the tooth surface of the gear by the grinding member. The control unit is used to control the driving module to apply additional movement to at least one of the plural first corresponding axial directions or/and at least one of the plural second corresponding axial directions during the grinding process to change the grinding directions of the tooth surface of the gear generated by the grinding member.

A method for grinding or polishing a gearwheel in a grinding or polishing machine, wherein the machine has two workpiece spindles for receiving a workpiece and a grinding or polishing spindle with a grinding or polishing tool. The method has the steps of: a) Grinding or polishing a first workpiece on a workpiece spindle; b) In a temporally parallel manner to the grinding or polishing of the first workpiece: Receiving a second workpiece on the further workpiece spindle and measuring the toothing of the workpiece to determine the positions of the tooth gaps, the measurement including scanning the tooth or profile flanks of at least one tooth by a tactile measuring element or by contactless measuring, in order to determine the effective oversize on the tooth flanks; c) Following completion of grinding or polishing the first workpiece: Grinding or polishing the second workpiece on the further workpiece spindle based on the determined positions of the tooth gaps and/or the measured effective oversize on the tooth.

A method for grinding or polishing a gearwheel in a grinding or polishing machine, wherein the machine has two workpiece spindles for receiving a workpiece and a grinding or polishing spindle with a grinding or polishing tool. The method has the steps of: a) Grinding or polishing a first workpiece on a workpiece spindle; b) In a temporally parallel manner to the grinding or polishing of the first workpiece: Receiving a second workpiece on the further workpiece spindle and measuring the toothing of the workpiece to determine the positions of the tooth gaps, the measurement including scanning the tooth or profile flanks of at least one tooth by a tactile measuring element or by contactless measuring, in order to determine the effective oversize on the tooth flanks; c) Following completion of grinding or polishing the first workpiece: Grinding or polishing the second workpiece on the further workpiece spindle based on the determined positions of the tooth gaps and/or the measured effective oversize on the tooth.

The invention relates to a method for producing tooth flank modifications on toothing of workpieces, in which the workpiece and a tool are moved relative to one another and, as a result, material is removed from the tooth flank (3) of the workpiece. Different tooth flank modifications are generated on teeth (1) of the workpiece by means of a continuously rolling manufacturing process, by the tool comprising individually different tool profile geometries which generate the different tooth flank modifications on the teeth (1) of the workpiece. The tool can be a dresser with variable profile in order to provide, with dressable tools, individually different tool profile geometries.

A method for the manufacture of a gear component includes, in a soft machining process, introducing a preliminary toothing 3 with a machining allowance 7 that is fixed relative to a final toothing 4 into a blank such that a semi-finished part 2 is produced. The method also includes, in a fine machining process, removing the machining allowance 7 and producing the final toothing 4 of the toothed component. The machining allowance 7 is removed in a single-stage hobbing method by a grinding tool 1, wherein the grinding tool 1 removes the machining allowance completely in a single stroke movement H.

A method for the manufacture of a gear component includes, in a soft machining process, introducing a preliminary toothing 3 with a machining allowance 7 that is fixed relative to a final toothing 4 into a blank such that a semi-finished part 2 is produced. The method also includes, in a fine machining process, removing the machining allowance 7 and producing the final toothing 4 of the toothed component. The machining allowance 7 is removed in a single-stage hobbing method by a grinding tool 1, wherein the grinding tool 1 removes the machining allowance completely in a single stroke movement H.

Method for cutting a gear (4) from a metal workpiece (2), in which a tooth flank, still having an oversize compared with its predefined final geometry, of the gear is, in one or more cutting passes in cutting engagement with one or more cutting tools (10) fed thereto, hard-fine finished with a geometrically undefined cutting edge made of cutting grains incorporated in a binder matrix, in order to produce a reflective property, existing in the final geometry, of its surface, wherein, in a cutting pass of a cutting tool (10b), both an elastically resilient mounting of the cutting grains set by its binder matrix acts on this surface property, and a cutting reduction of the oversize by at least 2 μm at the tooth flank is realized by a compressive preload, set via the infeed of the cutting tool, to which the cutting engagement is subjected; as well as a gear-cutting tool and a machine tool for this purpose.

Method for cutting a gear (4) from a metal workpiece (2), in which a tooth flank, still having an oversize compared with its predefined final geometry, of the gear is, in one or more cutting passes in cutting engagement with one or more cutting tools (10) fed thereto, hard-fine finished with a geometrically undefined cutting edge made of cutting grains incorporated in a binder matrix, in order to produce a reflective property, existing in the final geometry, of its surface, wherein, in a cutting pass of a cutting tool (10b), both an elastically resilient mounting of the cutting grains set by its binder matrix acts on this surface property, and a cutting reduction of the oversize by at least 2 μm at the tooth flank is realized by a compressive preload, set via the infeed of the cutting tool, to which the cutting engagement is subjected; as well as a gear-cutting tool and a machine tool for this purpose.

A method for grinding a toothing of a workpiece with a grinding tool in a grinding machine, wherein during the engagement of the grinding tool in the toothing to be ground, a first and a second machine parameter are measured, and both machine parameters measured are compared with a predefined stored value, wherein a signal is output if at least one of the machine parameters exceeds or falls below the predefined stored value, taking account of a tolerance range. To enable a conclusion to be drawn about the course of the grinding process by monitoring relevant variables, at least one of the machine parameters contains periodic signal components, wherein the signal components are broken down by a frequency analysis into the individual frequency components and the frequency components are used, with regard to their frequency and/or amplitude, for comparison.