The invention relates to a method for producing or machining, by cutting, an identical set of teeth on each of a plurality of workpieces, in particular at least 4 workpieces, of a workpiece batch on one or more gear-cutting machines (100) having a gear-cutting tool (S), which has a set of teeth having rake faces (5) and having an axis of rotation (B1), in rolling machining engagement, in which method, in the event that a deviation of a set of teeth from the tooth profile sought for said set of teeth is detected or expected, a countermeasure that counteracts said deviation is determined and the production/machining of additional workpieces of said workpiece batch is continued using the countermeasure, the countermeasure being, at least in part, a change in the position of the rake faces relative to the axis of rotation of the tool, which change is brought about by means of grinding performed on the gear-cutting machine or at a grinding machine (140) that belongs to the machine group of the gear-cutting machine.

The invention relates to a skiving tool which is designed as a disposable tool and which includes a first front side, a second front side, a toothing formed on its circumference and having teeth. The front surfaces assigned to the first front side are each delimited by a first cutting edge, as well as a coupling device for coupling the skiving tool to a tool spindle of a skiving machine. In order to enable an extended use in the case of such a skiving tool, the invention provides that the skiving tool has the basic shape of a cylindrical disc, that the front surfaces of the teeth assigned to the second front side are each delimited by a second cutting edge, and that the coupling device for use enables coupling of the skiving tool to the tool spindle such that the cutting edges assigned to its first front side come into engagement with the gear wheel to be processed, and enables coupling of the skiving tool to the tool spindle such that the cutting edges assigned to its second front side come into engagement with the gear wheel to be processed. During use, when the first cutting edges have reached their wear limit, the skiving tool is turned and skiving processing is continued with the same skiving tool until the second cutting edges have also reached their wear limit.

An object is to provide a gear edge cut-off tool and a gear edge cut-off device capable of suppressing variation in the amount to cut off side edges of a gear. A gear edge cut-off tool of the present invention has a shape, in a first main plane (rake face) of a first cutting blade portion capable of cutting off a side edge of a gear wheel, that is curved or bent in a concave shape in an edge line direction.

An object is to provide a gear edge cut-off tool and a gear edge cut-off device capable of suppressing variation in the amount to cut off side edges of a gear. A gear edge cut-off tool of the present invention has a shape, in a first main plane (rake face) of a first cutting blade portion capable of cutting off a side edge of a gear wheel, that is curved or bent in a concave shape in an edge line direction.

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.

An object is to provide a gear edge cut-off tool and a gear edge cut-off device capable of suppressing variation in the amount to cut off side edges of a gear. A gear edge cut-off tool of the present invention has a shape, in a first main plane (rake face) of a first cutting blade portion capable of cutting off a side edge of a gear wheel, that is curved or bent in a concave shape in an edge line direction.

An object is to provide a gear edge cut-off tool and a gear edge cut-off device capable of suppressing variation in the amount to cut off side edges of a gear. A gear edge cut-off tool of the present invention has a shape, in a first main plane (rake face) of a first cutting blade portion capable of cutting off a side edge of a gear wheel, that is curved or bent in a concave shape in an edge line direction.

A gear machining apparatus causes a machining tool and a workpiece to rotate at a high speed in synchronization with each other to machine a highly accurate gear through cutting. The machining tool is manufactured such that each of pitches between tool blades of the machining tool is an integer multiple of a pitch between teeth of the gear, the integer multiple being equal to or larger than double. By using the machining tool for cutting performed by the gear machining apparatus, the number of the tool blades of the machining tool, which are brought into contact with the workpiece at the same time, is reduced. Thus, it is possible to suppress occurrence of self-excited vibrations during cutting by reducing the cutting resistance. Thus, it is possible to enhance the tooth trace accuracy of the gear.

The invention relates to a method for producing or machining, by cutting, an identical set of teeth on each of a plurality of workpieces, in particular at least 4 workpieces, of a workpiece batch on one or more gear-cutting machines (100) having a gear-cutting tool (S), which has a set of teeth having rake faces (5) and having an axis of rotation (B1), in rolling machining engagement, in which method, in the event that a deviation of a set of teeth from the tooth profile sought for said set of teeth is detected or expected, a countermeasure that counteracts said deviation is determined and the production/machining of additional workpieces of said workpiece batch is continued using the countermeasure, the countermeasure being, at least in part, a change in the position of the rake faces relative to the axis of rotation of the tool, which change is brought about by means of grinding performed on the gear-cutting machine or at a grinding machine (140) that belongs to the machine group of the gear-cutting machine.