A method for hard finishing two different toothings on a workpiece, wherein, prior to each machining process, to set the correct tool engagement position for the machining process, a first relative rotational angle position of a first rotational position reference of the first toothing is determined relative to an axial rotational position of the workpiece spindle holding and clamping the workpiece for the first machining, and a second relative rotational angle position of a second rotational position reference of the second toothing is determined relative to an axial rotational position of a workpiece spindle holding and clamping the workpiece for the second machining, wherein the machining operations are carried out on the same workpiece spindle with no intervening clamping change, and with the first and second rotational position references coupled to each other as the basis thereof.

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).

A machine tool includes a workpiece holder, a tool holder holding working tools that includes a hob cutter used in a rough machining and a skiving cutter used in a finish machining, a tool magazine, a tool replacing device replacing one of the working tools mounted on the tool holder with the other of working tools housed in the tool magazine, a rough machining controlling section performing the rough machining on the workpiece, a tool measuring device measuring a position of a blade in a rotation direction of the skiving cutter, an angle correcting section correcting a rotation angle of the skiving cutter based on a result measured by the tool measuring device, and placing a tooth space formed in the workpiece and an edge tip of the blade in a position corresponding to each other, and a finish machining controlling section by which workpiece is finish machined.

A machine tool includes a workpiece holder, a tool holder holding working tools that includes a hob cutter used in a rough machining and a skiving cutter used in a finish machining, a tool magazine, a tool replacing device replacing one of the working tools mounted on the tool holder with the other of working tools housed in the tool magazine, a rough machining controlling section performing the rough machining on the workpiece, a tool measuring device measuring a position of a blade in a rotation direction of the skiving cutter, an angle correcting section correcting a rotation angle of the skiving cutter based on a result measured by the tool measuring device, and placing a tooth space formed in the workpiece and an edge tip of the blade in a position corresponding to each other, and a finish machining controlling section by which workpiece is finish machined.

A control panel for a machine tool has a housing (1). The housing comprises a housing base part (2) and a housing front part (3). A display (19) and a control element panel (20, 21) are attached to the front part of the housing. In the region of the housing bottom side, the housing front part is connected to the housing base part by miter hinges so that it can be swiveled to provide access to the interior of the housing. Fold-out supports (13) make it possible to use an alphanumeric keyboard (15) for maintenance work. Indentations (5) on both sides of the housing rear allow the housing to be easily grasped. Control elements (18) are arranged in the indentations.

A control panel for a machine tool has a housing (1). The housing comprises a housing base part (2) and a housing front part (3). A display (19) and a control element panel (20, 21) are attached to the front part of the housing. In the region of the housing bottom side, the housing front part is connected to the housing base part by miter hinges so that it can be swiveled to provide access to the interior of the housing. Fold-out supports (13) make it possible to use an alphanumeric keyboard (15) for maintenance work. Indentations (5) on both sides of the housing rear allow the housing to be easily grasped. Control elements (18) are arranged in the indentations.

Method for hard machining of a precut and heat-treated gearwheel workpiece using a tool in a gear processing machine, having sensors and/or detectors, comprising: providing target data of the workpiece, determining a first relative movement of the tool relative to the workpiece based on the target data, executing the first relative movement, wherein an NC-controller brings the tool into contact with the workpiece in a controlled manner by the execution of the first relative movement, providing real-time measured values and movement data by means of the sensors and/or detectors during the execution of the first relative movement, performing an analysis of the real-time measured values together with the movement data and determining adapted, workpiece-specific relative movements, hard machining at least one region of a tooth of the workpiece, wherein the NC-controller executes the adapted, workpiece-specific relative movements of the tool relative to the workpiece.

The present disclosure comprises a gear manufacturing machine comprising a workpiece holder and a tool holder, which can each be caused to rotate by means of a drive, wherein the tool holder is arranged on a machining head, which can be moved relative to the workpiece holder by one or a plurality of motion axes of the gear manufacturing machine for gear manufacturing machining a workpiece held in the workpiece holder by means of a tool held in the tool holder, the tool holder having a counterholder. According to the present disclosure the counterholder is movable by a motion axis from its working position to an inactive position and/or is arranged on the machining head of the gear manufacturing machine in a releasably connectable manner.

A method for the chip-producing machining of a gear wheel workpiece in a machine uses a cutting tool having at least two geometrically defined cutting edges, which produce material in chip form on the gear wheel workpiece during chip-producing machining. The chip-producing machining is defined by method parameters. The method includes computer-assisted analysis of the production of chips on the multiple cutting edges of the cutting tool and computer-assisted ascertainment of relative forces which will occur on the multiple cutting edges of the cutting tool during the production of chips. The method further includes optimizing the chip-producing machining to prevent the relative forces from exceeding a predetermined limiting value or reaching a limiting range. The optimization step includes providing adapted method parameters by modifying at least one of the method parameters. Chip-producing machining of the gear wheel workpiece is performed using the adapted method parameter(s).

A method for the chip-producing machining of a gear wheel workpiece in a machine uses a cutting tool having at least two geometrically defined cutting edges, which produce material in chip form on the gear wheel workpiece during chip-producing machining. The chip-producing machining is defined by method parameters. The method includes computer-assisted analysis of the production of chips on the multiple cutting edges of the cutting tool and computer-assisted ascertainment of relative forces which will occur on the multiple cutting edges of the cutting tool during the production of chips. The method further includes optimizing the chip-producing machining to prevent the relative forces from exceeding a predetermined limiting value or reaching a limiting range. The optimization step includes providing adapted method parameters by modifying at least one of the method parameters. Chip-producing machining of the gear wheel workpiece is performed using the adapted method parameter(s).