Abstract: Method for finishing hardened gears comprising: a first dry removal step of a first stock amount by means of a first cutting tool with defined cutting edges; and a second dry removal step of a second stock amount by means of a second cutting tool with non defined cutting edges.

Abstract: Method for finishing hardened gears comprising: a first dry removal step of a first stock amount by means of a first cutting tool with defined cutting edges; and a second dry removal step of a second stock amount by means of a second cutting tool with non defined cutting edges.

Abstract: A gear cutting machine wherein a chamfer/deburr device and tool are fastened to a fixed component of the gear cutting machine. In this way, it is possible to adjust the chamfering/deburring tool into the working position in a simple and dependable manner to remove the edges from a gear. The device preferably has a linear track as well as a pivot axis, which can position the tool into the optimum position for the chamfering and/or deburring of the gear.

Abstract: A process for monitoring the correct setting of the coolant nozzle (9) of a grinding machine for grinding the tooth flanks of workpieces with premachined teeth. In an automatic test cycle after setting the machine, with the grinding wheel (2) at defined positions relative to the workpiece (3), the alterations in power consumption of the grinding spindle drive when switching on the coolant supply are measured, compared with the desired value ranges specified in the machine control system, and the machining process blocked in the event of measurements being below or above the desired value ranges. In this manner the production of scrap and the occurrence of deflagration of the coolant/lubricant-air mixture in the machine working area, and hence a machine fire, can be effectively prevented.

Abstract: A method of machining cylindrical gears with internal or external gearing on a machine with a tool wherein a gear is positioned on a machine, the gear having an axis of rotation (D). The gear is then evaluated to establish a gear guiding axis (F) and the position of the gear guiding axis (F) relative to the axis of rotation (D) is determined. The gear is machined by displacing the tool in the direction of the gear guiding axis (F).

Abstract: The present invention concerns a process for monitoring the correct setting of the coolant nozzle (9) of a grinding machine, in particular of a machine for grinding the tooth flanks of workpieces with premachined teeth. In an automatic test cycle after setting the machine, with the grinding wheel (2) at defined positions relative to the workpiece (3), the alterations in power consumption of the grinding spindle drive when switching on the coolant supply are measured, compared with the desired value ranges specified in the machine control system, and the machining process blocked in the event of measurements being below or above the desired value ranges.

Abstract: Tool head as seat and drive for the rotary motion of a tool to be bilaterally supported in the tool head. Near its ends, the tool has centering faces which fit into rotatably developed seat bushings in the tool head. One of said seat bushings is arranged in a drive carriage and the other in a counter-bearing, in alignment with each other. The counter-bearing is part of a counter-bearing carriage which can be displaced far enough on the drive carriages to seat the tool so that the tool, which is located between the carriages, is held with the centering faces in the bushings and a pre-adjusted axial force is present. A rotary drive motor is connected to the tool via a tool spindle supported in the drive carriage and a positive clutch. The tool is preferably developed as a shaft tool and is essentially symmetrical relative to a plane perpendicular to the axis of rotation in the center of a gear cutting enveloping body of the tool.

Abstract: A gear cutting machine wherein a chamfer/deburr device and tool are fastened to a fixed component of the gear cutting machine. In this way, it is possible to adjust the chamfering/deburring tool into the working position in a simple and dependable manner to remove the edges from a gear. The device preferably has a linear track as well as a pivot axis, which can position the tool into the optimum position for the chamfering and/or deburring of the gear.

Abstract: A machine for manufacturing bevel and hypoid gears comprising a machine column including a first side and a second side. A first spindle is movably secured to the first side with the first spindle being rotatable about a first axis. A second spindle is movably secured to the second side with the second spindle being rotatable about a second axis. The first and second spindles are movable linearly with respect to one another in up to three linear directions with at least one of the first and second spindles being angularly movable with respect to its respective side. The angular movement of at least one of the first and second spindles being about a respective pivot axis extending generally parallel with its respective side.

Abstract: Method for dressing or profiling an essentially cylindrical grinding worm on a machine suitable for continuous generating grinding in the diagonal method. The method comprises providing an essentially cylindrical gear used as a dressing tool with the dressing tool being provided with an abrasive coating on that surface which is active in the dressing process and bringing the dressing tool into contact with the grinding worm and profiling at least one flank of the grinding worm in a tangential or diagonal method.

Abstract: A method of machining cylindrical gears with internal or external gearing on a machine with a tool wherein a gear is positioned on a machine, the gear having an axis of rotation (D). The gear is then evaluated to establish a gear guiding axis (F) and the position of the gear guiding axis (F) relative to the axis of rotation (D) is determined. The gear is machined by displacing the tool in the direction of the gear guiding axis (F).

Abstract: A machine for manufacturing bevel and hypoid gears comprising a machine column including a first side and a second side. A first spindle is movably secured to the first side with the first spindle being rotatable about a first axis. A second spindle is movably secured to the second side with the second spindle being rotatable about a second axis. The first and second spindles are movable linearly with respect to one another in up to three linear directions with at least one of the first and second spindles being angularly movable with respect to its respective side. The angular movement of at least one of the first and second spindles being about a respective pivot axis extending generally parallel with its respective side.