Abstract: The invention relates to a tool for dressing or cutting teeth of fine machining tools, which tool makes it possible to exactly reproduce, in a simple manner, the required tooth system geometry on the fine machining tool which is to be dressed or in which teeth are to be cut. The tool is annular and has a set of internal teeth, the teeth of which mesh, during the tooth-cutting or dressing operation, with the set of external teeth of the fine machining tool in which teeth are to be cut or which is to be dressed. At the same time, the tool has a central longitudinal axis, which extends through the centre point of the opening surrounded by the tool. According to the invention, the set of internal teeth is now formed on a ring element, which is at most 5 mm thick and is produced from a diamond material. The teeth of the set of internal teeth have cutting edges, by means of which said teeth remove material of the fine tool during the tooth-cutting or dressing machining process.

Abstract: The invention makes a tool available, which allows highly precise, simultaneous production of two back-tapers on the tooth flanks of the teeth of a workpiece in the form of a gearwheel, independent of their width. For this purpose, the invention provides that the tool includes a tool carrier configured in elongated manner, in the manner of a journal, and oriented coaxial to its central longitudinal axis of the tool, and includes at least two blades, which come into engagement with the tooth to be machined, in each instance, removing chips during use, wherein the blades are held on the tool carrier at a distance from one another in the longitudinal direction of the tool carrier and extend over a partial length of the tool carrier, in each instance, in terms of their width. According to the invention, in this regard the position of at least one of the blades is adjustable in relation to the other blade, so as to balance out deformations of the tool carrier that occur during use.

Abstract: A method for precision machining a workpiece with gearing, wherein teeth of a gear-cutting tool rotating about a rotation axis are brought into engagement with teeth of the workpiece rotating about a workpiece rotation axis, and the gear-cutting tool and the workpiece are moved relative to each other in an axial direction parallel to the workpiece rotation axis. The thickness of the teeth of the gear-cutting tool, starting from an end face, increases in the axial direction until a thickness maximum is reached. The ratio (Bw/Bz) of the width (Bw) of the teeth of the workpiece to the width (Bz) of the teeth of the gear-cutting tool is 2-20. Before and after each pass of the teeth of the gear-cutting tool through the tooth gaps of the workpiece, the thickness maximum of each tooth of the gear-cutting tool is positioned outside the gearing of the workpiece.

Abstract: The invention makes available a method for the production of gear wheels, with which it is possible to produce gear wheels having double-helical teeth, in particularly efficient manner. For this purpose, in the case of the method according to the invention for chipping production of a gear wheel, which is provided with double-helical teeth, in which the teeth of the one gear half are configured to run counter to the teeth of the other gear half, in rising manner, wherein the gear halves are arranged offset from one another by an angle amount with reference to the axis of rotation of the gear wheel, a gear wheel blank is made available, on which the teeth provided on the gear wheel are produced by means of hobbing, using a hobbing wheel, which, during hobbing machining of the teeth, in each instance, of one of the gear halves, reaches all the way into the adjacent tooth gaps of the other gear half, in each instance.

Abstract: The invention provides a tool, a method and a machine with which roof ridge-shaped chamfers can be produced on teeth of an internally and externally toothed gearwheel with minimised changeover times during tool set up. For this purpose, a tool according to the invention comprises a tool carrier having a holding section for attachment in a tool holder and a chamfering tool, which is held on the end section of the tool carrier, said end section being associated with the other end face, and during use describes an impact circle with its cutting edge, the diameter of said circle being determined by the radial distance of the cutting edge of the chamfering tool from the axis of rotation of the tool. According to the invention, at least one further chamfering tool is attached in a middle section of the tool carrier which is offset relative to the end section provided with the chamfering tool towards the holding section of the tool carrier.

Abstract: A method for honing processing a toothed wheel in which the toothed wheel and a honing tool mesh with each other and the rotation axes of the toothed wheel and honing tool intersect at an axial intersection angle. The toothed wheel and honing tool carry out a relative movement which oscillates in an axial direction of the rotation axis of the toothed wheel and are positioned in a direction towards each other at the same time in a radial direction with respect to the rotation axis of the toothed wheel starting from an end position in order to remove material from the toothed wheel. During the oscillating relative movement which is directed in an axial direction of the rotation axis of the toothed wheel, the rotation position of the toothed wheel with respect to the rotation axis thereof is changed in accordance with the positioning in a radial direction.

Abstract: A method for dressing a honing tool using a dressing tool which during the dressing operation rolls at an axial intersection angle with the honing tool. The teeth thereof which move into engagement with the teeth of the dressing tool each have an upper face which is to be dressed and tooth flanks which are also to be dressed.

Abstract: The invention relates to a method for modifying the geometry of gear wheel tooth flanks with a tool with a toothing that engages with the gear wheel during a precision machining. A varied profile is produced on the tool over the width of the tool, in that during a dressing procedure a dressing wheel is moved along the tooth flank of the tooth to be dressed. The width of the teeth of the dressing wheel is much smaller than the width of the tool. In order to cover the width of the tool a length must be covered corresponding to a multiple of the width of the teeth of the dressing wheel. After the dressing, the precision machining of the gear wheel is carried out with the tool. Since the dressing wheel is moved with a changing pitch and a changing crossed axes angle relative to the tool, the modification of the tooth flank geometry can be reproduced in the tool.

Abstract: A tool, a method and a machine for producing a tooth profile by performing a coupled skiving movement between a skiving tool and the workpiece, by rotating the tool about a tool axis of rotation and rotating the workpiece about a workpiece axis of rotation. The tool includes a crown gear, on the front of which a tooth system with a cutting profile is located, which when in use reproduces the tooth profile on the workpiece.