The invention relates to a toothing processing machine comprising a machine frame and a spindle carrier having a first spindle. The spindle comprises a first spindle housing and a first spindle shaft, which is arranged in the first spindle housing such that it can rotate about a first spindle axis, and a free end for receiving a work piece or a tool. A second spindle is also provided having a second spindle housing and a second spindle shaft for receiving a tool or work piece, wherein the second spindle shaft is mounted in the second spindle housing such that it can rotate about a second spindle axis. In addition, at least one wall of the machine frame forms a part of the casing of a closable working chamber, in which the work piece can be processed and which can be closed in order to prevent the release of a material removal, a processing liquid and/or a processing mist from the working chamber into other machine regions or to the outside. The spindle carrier is also arranged on the machine frame such that it can move in the direction of the first spindle axis. In addition, the closable working chamber includes the free end of the first spindle shaft and at least sections of the second spindle shaft. According to the invention, the toothing processing machine comprises a bellows, securely connected to the spindle carrier on a first side and to the at least one wall of the machine frame on a second side, wherein the bellows borders the closable working chamber at at least one point in such a way that a part of the spindle carrier is permanently positioned outside of the working chamber. In this way, the bellows is able to commence a relative movement in the direction of the first spindle axis between the spindle carrier and the machine frame, via a moving apart and together.

The invention relates to a toothing processing machine comprising a machine frame and a spindle carrier having a first spindle. The spindle comprises a first spindle housing and a first spindle shaft, which is arranged in the first spindle housing such that it can rotate about a first spindle axis, and a free end for receiving a work piece or a tool. A second spindle is also provided having a second spindle housing and a second spindle shaft for receiving a tool or work piece, wherein the second spindle shaft is mounted in the second spindle housing such that it can rotate about a second spindle axis. In addition, at least one wall of the machine frame forms a part of the casing of a closable working chamber, in which the work piece can be processed and which can be closed in order to prevent the release of a material removal, a processing liquid and/or a processing mist from the working chamber into other machine regions or to the outside. The spindle carrier is also arranged on the machine frame such that it can move in the direction of the first spindle axis. In addition, the closable working chamber includes the free end of the first spindle shaft and at least sections of the second spindle shaft. According to the invention, the toothing processing machine comprises a bellows, securely connected to the spindle carrier on a first side and to the at least one wall of the machine frame on a second side, wherein the bellows borders the closable working chamber at at least one point in such a way that a part of the spindle carrier is permanently positioned outside of the working chamber. In this way, the bellows is able to commence a relative movement in the direction of the first spindle axis between the spindle carrier and the machine frame, via a moving apart and together.

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. The ring element is supported by a support ring, on which at least one support element associated with the support ring opening of the support ring is provided. The ring element is supported on said support element. The teeth of the set of internal teeth formed on the ring element protrude beyond the edge of the support element facing the support ring opening at least over part of the length of the cutting edges of said teeth in the direction of the central longitudinal axis of the tool.

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. The ring element is supported by a support ring, on which at least one support element associated with the support ring opening of the support ring is provided. The ring element is supported on said support element. The teeth of the set of internal teeth formed on the ring element protrude beyond the edge of the support element facing the support ring opening at least over part of the length of the cutting edges of said teeth in the direction of the central longitudinal axis of the tool.

The subject application relates to a bonded abrasive for gear power honing. An abrasive article including a bonded abrasive body having abrasive particles and a bond material. The abrasive body can include an inner annular surface with at least 1 tooth. The abrasive article can provide an average Ff.sub.? of less than 2.0 according to a Gear Power Honing Test.

The subject application relates to a bonded abrasive for gear power honing. An abrasive article including a bonded abrasive body having abrasive particles and a bond material. The abrasive body can include an inner annular surface with at least 1 tooth. The abrasive article can provide an average Ff.sub.? of less than 2.0 according to a Gear Power Honing Test.

A tool which can be used for gear manufacturing machining of a workpiece may be dressed on a dressing machine, and the dressing may take place with line contact between the dresser and the tool. A specific modification of the surface geometry of the tool is produced by the suitable selection of the position of the dresser with respect to the tool during dressing. The specific modification of the surface geometry of the workpiece is specifiable with regard to various parameters.

A method for machining an internally toothed workpiece, in which the workpiece is clamped into a toothed honing machine, and in which at least one tool that is at least partially made of a high-hardness cutting material is guided along respective teeth of the internally toothed workpiece, in order to carry out hard-fine machining of the teeth of the internally toothed workpiece.

A method for machining an internally toothed workpiece, in which the workpiece is clamped into a toothed honing machine, and in which at least one tool that is at least partially made of a high-hardness cutting material is guided along respective teeth of the internally toothed workpiece, in order to carry out hard-fine machining of the teeth of the internally toothed workpiece.

A method for creating a surface structure on a gear wheel in a honing process, in which at least one honing tool is moved along the gear wheel in a first direction using a first crossed axes angle, and in which, subsequently, the at least one honing tool is moved along the gear wheel in a second direction, opposite to the first direction, using a second crossed axes angle, and in which the first crossed axes angle and the second crossed axes angle are chosen such that first scoring marks produced when the at least one honing tool is moved in the first direction on a surface of the gear wheel at least partially intersect, at a given angle, respective second scoring marks produced when the at least one honing tool is moved in the second direction on the surface of the gear wheel.