Abstract: An apparatus including a first spindle group for chucking a first gear, whereby the first gear is mountable on the first spindle group so that it is rotatable, and a second spindle group for chucking a second gear, whereby the second gear is mountable on the second spindle group so that it is rotatable. The apparatus further defining a first linear axis oriented to perform a first linear displacement of the first spindle group relative to the second spindle group; a second linear axis oriented to perform a second linear displacement of the first spindle group relative to the second spindle group; and at least one of a swivel axis oriented to perform pivoting of the first spindle group thereabout, and a swivel axis oriented to perform pivoting of the second spindle group thereabout.

Abstract: A method for grinding bevel gears (1), wherein a first grinding tool (2) is used during a first method section and a second grinding tool is used during a second method section. A measurement system (30) is used to carry out a measuring procedure, in which sampling values can be ascertained for at least a part of first flanks of the bevel gear workpiece (1), which enable a statement about the concentricity error of this bevel gear workpiece (1) in the present chucking. Concentricity correction dimensions are ascertained by computer on the basis of the sampling values, and an adaptation of machining movements of the second method section is performed on the basis of the concentricity correction dimensions.

Abstract: A method and an apparatus for skiving a work piece that has a rotationally-symmetric, periodic structure, by applying a skiving tool. The skiving tool has a tapering collision structure. During skiving, a coupled relative movement of the skiving tool in relation to the work piece is performed. The skiving tool is rotated about a first rotation axis and the work piece is rotated about a second rotation axis. A negative tilt angle is set during skiving, and the first rotation axis runs skew with respect to the second rotation axis.

Abstract: The invention relates to a method for ascertaining topography deviations of a dressing tool. The method includes executing a predefined relative movement of a dressing tool in relation to a dressable grinding tool, wherein during the execution of the relative movement, at least one contour region of the dressing tool is transferred into a transfer region of the grinding tool. A plunging body made of material which can be ground in the machine is provided. The transfer region of the grinding tool is moved into the vicinity of the plunging body by a relative infeed movement. A rotational movement of the grinding tool around an axis of rotation is executed. Plunging the transfer region of the grinding tool into the material of the plunging body, to thus perform a transfer of the topography of the transfer region into an imaging region of the plunging body.

Abstract: A power skiving tool for producing multiple tooth gaps by means of a power skiving method on a ring-shaped or disk-shaped workpiece, which has a workpiece axis of rotation is provided. The power skiving tool includes a tool axis of rotation, a skiving conical body, which is in the form of a hyperboloid or truncated cone, and which is arranged rotationally-symmetrically to the tool axis of rotation, and multiple cutting teeth, which protrude essentially radially out of a lateral surface of the skiving conical body. Each of the cutting teeth has a rake face and at least one cutting edge, and all rake faces have a cutting surface normal, which encloses an acute angle, which is less than 40°, with the tool axis of rotation, and wherein the power skiving tool is designed for axially-offset power skiving of the workpiece.

Abstract: A chucking device, which includes a rotationally-drivable spindle, a chucking means for mechanical chucking of a chucked object arranged on the spindle, a drive gearwheel, and a drive for rotationally driving the gearwheel. The chucking means has a rotating body, which has gear teeth and allows, through rotational movement, the chucked object to be chucked or unchucked. The drive gearwheel has gear teeth configured for complementary engagement with the gear teeth of the rotating body. The gear teeth of the rotating body and drive gearwheel are designed to provide flank play, such that the drive gearwheel can assume a neutral angular position with respect to the rotating body so that the gear teeth of the rotating body and drive gearwheel do not touch each other.

Abstract: The invention includes a clamping system for a workpiece on a measuring machine, with a multiple-jaw clamping chuck. A rotary drive rotates the multiple-jaw clamping chuck. The rotary drive includes a stator and a rotor. The multiple-jaw clamping chuck has a chuck body wherein the clamping jaws are radially movable for clamping a workpiece or loosening it from the clamping chuck, a flat spiral mounted rotating relative to the chuck body in positive engagement with the clamping jaws, and an outer rim rotating with respect to the stator. The flat spiral is firmly joined to the rotor of the rotary drive, but can turn relative to the chuck body in order to move the clamping jaws radially inward or outward. Using a coupling, a part of the clamping system can be secured so that the rotary drive takes on the function of adjusting the clamping jaws.

Abstract: Apparatus and method for skiving first and second work pieces using the same skiving tool to machine both work pieces. Flank cutting edges of the skiving tool subjected to a stronger load during machining of the first work piece are subjected to a lesser load during machining of the second work piece and vice versa. Accordingly, a substantially uniform load is subjected to both flank cutting edges overall, resulting in improved uniformity of wear to both flank cutting edges.

Abstract: A device has a work piece spindle for accommodating a bevel gear work piece, a tool spindle for accommodating a grinding wheel having an abrasive surface, and a plurality of drives for machining the bevel gear work piece. During machining of the bevel gear work piece, the grinding wheel rotates about the rotational axis of the tool spindle and engages the bevel gear work piece to remove material. The rotation is superimposed with an eccentric movement such that the grinding wheel only engages the bevel gear work piece at n contact regions of the abrasive surface. The device is configured to allow adjustment of the eccentric movement after a first machining phase and to specify m contact regions of the abrasive surface in a further machining pase, wherein the m contact regions do not overlap with the n contact regions.

Abstract: Method and an apparatus for setting up and plunging a skiving tool with respect to a work piece, on which a rotational-symmetric, periodic structure is to be manufactured with application of the skiving tool, wherein a radial feed motion in the direction of the work piece is performed, so to bring the skiving tool in contact with the work piece for the first time, and the skiving tool is plunged from the moment of the first contact down to a predetermined depth in a radial plunging movement, before the proper skiving of the rotation-symmetric, periodic structure is carried out.

Abstract: A gear teeth generation method carried out on multi-axis machines, using a disk tool. The tool travels along the gear tooth where its motion along a gap adjacent to the gear tooth is synchronized with the roll motion performed by said multi-axis machine so that the pressure line is on the machining surface of the tool. The tool machines a bottom land surface of the tooth with its perimeter. Machining of the tooth flank starts with the tool positioned such that the pressure line is near a first edge of the tooth flank. Positions of the tool and the tooth are changed to cause the pressure line to move away from the first edge of the tooth flank. Machining is finished when the pressure line reaches the opposite edge of the tool flank. The pressure line is on the machining surface of the tool throughout every stage of machining.

Abstract: A method of chip-removal machining a tooth gap of a work piece includes executing a first substantially linear plunging movement of the cutting tool along a first plunge vector and machining a region of the work piece near a tooth head of a first tooth flank of the tooth. A substantially transverse movement of the tool along a transverse vector is then executed to machine a region of the work piece near a tooth head of the second tooth flank of the tooth. A second plunging movement of the cutting tool along a vector path is then executed, to an end point of the second plunging movement that lies at a position of the work piece corresponding to the slot depth of the tooth gap to be fabricated. The cutting tool is rotated about an axis of rotation thereof during execution of these steps.

Abstract: An apparatus having a roughness sensing system and a roughness measurement sensor, wherein a slide element and a probe tip come to operation, and method of use thereof. The slide element is arranged on an extreme end of a probe pin in the form of a scan-slide element. The probe tip is integrated into the probe pin, and the distance between the scan-slide element and the probe tip is predetermined. The roughness sensing system is a 1D-, 2D- or 3D-scanning system having a parallelogram configuration. The apparatus further has a serving device which enables moving the probe pin together with the scan-slide element and the probe tip jointly over a surface to be scanned.

Abstract: The invention relates to a method for hard fine machining of a pre-manufactured flank (11) of a gear wheel by a machine having at least five axes controlled in coordination and one additional tool axis (WA). According to the invention, a rotation-symmetrical tool (20.1) is driven on the machine side such that it is set into a rotation (RA) about the tool axis (WA). In addition, the axes controlled in coordination are actuated such that a straight-lined section of the surface line of the tool (20.1) is guided tangentially along the flank (11) in a generating movement while the tool (20.1) removes material on the pre-manufactured flank (11) by means of the rotation (R1) about the tool axis (WA). The generating movement follows pre-specified movement vectors (E).

Abstract: A skiving tool for manufacturing a rotationally symmetrical periodical structure on a work piece by means of a power skiving method. The skiving tool comprises a base body comprising a central rotation axis and a plurality of receiving openings and a plurality of cutter bars, fewer than or equal to the number of receiving openings. Each of the receiving openings has an elongate shape having a longitudinal axis, and the receiving openings can be arranged uniformly around the central rotation axis. The longitudinal axes of the receiving openings are generators of a rotation hyperboloid, which is arranged rotationally symmetrical to the central rotation axis.

Abstract: Milling of a bevel gear tooth system in the continuous process, wherein a cutter head comprising a plurality of pairs of inner cutting edges and outer cutting edges is applied to a workpiece, the inner cutting edges are arranged on a smaller fly circle radius than the outer cutting edges and movements for a metal-cutting machining by milling are performed by a gear cutting machine where the bevel work gear and the cutter head run linkedly: performing a first continuous metal-cutting machining by milling using the gear cutting machine according to a first machine setting, wherein convex inner flanks on the bevel work gear are machined by the inner cutting edges; and performing a second continuous metal-cutting machining by milling using a gear cutting machine according to a second machine setting, wherein concave outer flanks on the bevel work gear are machined by the outer cutting edges.

Abstract: The invention relates to a method for ascertaining topography deviations of a dressing tool. The method includes executing a predefined relative movement of a dressing tool in relation to a dressable grinding tool, wherein during the execution of the relative movement, at least one contour region of the dressing tool is transferred into a transfer region of the grinding tool. A plunging body made of material which can be ground in the machine is provided. The transfer region of the grinding tool is moved into the vicinity of the plunging body by a relative infeed movement. A rotational movement of the grinding tool around an axis of rotation is executed. Plunging the transfer region of the grinding tool into the material of the plunging body, to thus perform a transfer of the topography of the transfer region into an imaging region of the plunging body.

Abstract: The invention relates to the production of plunge-cut crown wheels having straight or linear hypocycloid as the flank longitudinal line of the teeth. The production is performed by means of a forming method in which the axial movements are coupled. Corresponding pinions can be produced using a modified hobbing method. A corresponding tapered generating wheel is used. The milling tool carries multiple cutters. The teeth of the conical virtual generating wheel are reproduced in the engagement area by the blades or blade flanks of the cutters of the milling tool.

Abstract: Gearwheel cutting machine for machining the tooth flanks of gearwheels (1), comprising chucking means (20) for chucking a workpiece (1) to be machined; a gear cutting tool; and a flat, ring-shaped vibration-damping element (21) insertable in the area of the chucking means (20) during the chucking of the workpiece (1) to be machined, the ring-shaped vibration-damping element (21) being provided in order to suppress or damp vibrations.

Abstract: A method and an apparatus for skiving a work piece having an outer rotationally symmetric periodic structure by applying a skiving tool. The skiving tool is an inside skiving ring spanning an interior space that includes a plurality of cutting teeth. At least one cutting edge, one cutter head tip and one cutting face are provided on each cutting tooth. The cutting faces of all the cutting teeth are arranged rotationally symmetric with respect to the rotational axis of the skiving tool on a front plane or a front side cone surface of the inside skiving ring, and the cutting teeth project into the interior space and point in the direction of the rotation axis.