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: 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: 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: 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: The invention relates to a form blade (10) for the milling of bevel gears, with a base body (11) which has a receiving area and with at least two cutting strips (13.1, 13.2) with a cutting edge (18.1). The cutting strips (13.1, 13.2) are detachably fixed in corresponding receiving areas (12.1, 12.2) of the base body (11).

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 face milling cutter method for manufacturing various hypocycloidal bevel gears that is characterized in that the following steps are performed to manufacture a first bevel gear: equipping a universal face milling cutter in a first configuration with a first number of cutter groups that corresponds to a first number of passes. A first bevel gear is then produced in the continuous partial method using the universal face milling cutter in the first configuration. The following steps are performed to manufacture a second bevel gear: equipping the same universal face milling cutter in a second configuration with a second number of cutter groups that corresponds to a second number of passes. The second bevel gear is then produced in the continuous partial method using the universal face milling cutter in the second configuration.

Abstract: Bar cutter head (20) for receiving multiple bar cutters of a first bar cutter set, the bar cutter head (20) having n receptacle openings (25.1-25.6) for receiving n bar cutters of the first bar cutter set, which are all situated along a first concentric cutter head nominal circle having a first cutter head nominal radius (r1). A first spiral-toothed bevel gear (11) can be milled in the single-indexing method in this configuration. The bar cutter head (20) additionally has m receptacle openings (26.1 -26.6) for receiving m bar cutters of a second bar cutter set, which are all situated along a second concentric cutter head nominal circle having a second cutter head nominal radius (r2). A second spiral-toothed bevel gear can be milled in the configuration having the m bar cutters. It is thus a universally-usable cutter head (20).

Abstract: Device and method for positioning a precision part on a turntable (130). The device (100) comprises at least two distance sensors (121.1, 121.2, 121.3), which operate in a contactless manner and are situated in a previously known configuration to a rotational axis (A1) of the turntable (130). The measurement axes (124.1, 124.2, 124.3) of the distance sensors (121.1, 121.2, 121.3) are radially oriented in the direction of the rotational axis (A1) so that the measurement axes (124.1, 124.2, 124.3) of the distance sensors (121.1, 121.2, 121.3) meet in a virtual measuring point (MV). The distance sensors (121.1, 121.2, 121.3) are connected to analysis electronics (200). Output signals (a.1, a.2, a.3) of the distance sensors (121.1, 121.2, 121.3) may be processed on the basis of the analysis electronics (200), in order to allow coaxial centering of the precision part (11) in relation to the rotational axis (A1) upon placement of the precision part (11) on the turntable (130).

Abstract: Machine (10) with an NC control unit (11) and at least one motor (12) which can be triggered by said control unit (11) and which forms an oscillatory system with its bearing and/or parts of the machine (10). The control unit (10) injects control variables (S1) into the motor (12) which trigger a desired motion of the motor (12). When necessary, the control unit (11) additionally injects predetermined signal variables (S2) into the motor (12) which trigger desired mechanical oscillations of the oscillatory system. The signal variables (S2) are predetermined in such a way that the mechanical oscillations are audible and/or tangible.

Abstract: Method for the chip-removing machining of the tooth flanks of a gear wheel having n teeth and n tooth gaps on a multiaxis grinding machine. A grinding disc which may be dressed is used for the machining and one of the n tooth gaps after another is machined using this grinding disc in the single indexing method. The grinding disc plunges into each of the n tooth gaps up to a predefined plunging depth (T1). If it is a freshly dressed grinding disc, the grinding disc is plunged using a predefined first restraint in relation to the normal predefined plunging depth into m of the n tooth gaps at the beginning of the machining of the gear wheel, to pre-machine these m tooth gaps (for this purpose: m=1, 2, or 3 and m<n). The remaining n?m tooth gaps are subsequently machined using the predefined plunging depth (T1).

Abstract: Tool head (110) for use in a multiaxis machine (100), the tool head (110) comprising a spindle body, which has two elements (101, 102). These elements (101, 102) are rotatably connected with one another via a corresponding coupling (103), the first element (101) having a first longitudinal axis (WA1) and the second element (102) having a second longitudinal axis (WA2), which are transferable from a stretched position into an angled position depending on the rotational position. A first drive (A1) is seated in or on the spindle body. A receptacle device (120) is provided, which is situated on the second element (102). This receptacle device (120) is used for fastening a motor spindle (20), a motor (M1), which is integrated in the motor spindle (20), being able to be supplied with power via the second element (102) and via electrical connection means of the receptacle device (120). The receptacle device (120) is also used for fastening a milling tool (30), which is drivable using the first drive (A1).

Abstract: Gearwheel cutting machine, which is designed for machining the tooth flanks of gearwheels (1), comprises chucking means (20) for chucking a workpiece (1) to be machined and a gear cutting tool. The gearwheel cutting machine is distinguished in that it comprises a flat, ring-shaped vibration-damping element (21), which is insertable in the area of the chucking means (20) during the chucking of the workpiece (1) to be machined, in order to suppress or damp vibrations.

Abstract: A device (10) for measuring the running behavior of a gear pair having a rolling device (12) which comprises one spindle (15, 16) per gear (13, 14) and has at least one drive (17; 18) for driving one of the gears (13, 14). Furthermore, a structure-borne noise sensor (20), a sequence controller (30), and a speed sensor system (23, 24) are provided. The sequence controller (30) is designed in such way that a combined test of the gear pair may be performed, in which, in a first search run, a specific installation position is ascertained using structure-borne noise testing and subsequently a single-flank working test is performed at the specific installation position.

Abstract: Vehicle having a wheel suspension, a wheel (1) to be driven, which is connected to the vehicle using the wheel suspension (40), and having an electric motor (20). The vehicle also comprises a bevel gear pair (30), which is directly connected to the wheel (1) and has a fixed gear reduction, and a shaft (42), which is situated between the electric motor (20) and the bevel gear pair (30) so that the electric motor (20) is connected by means of drive technology to the wheel (1) using the shaft (42) and the bevel gear pair (30). The fastening of the electric motor (20) on the vehicle is designed so that the electric motor (20) is essentially decoupled by means of movement technology from wheel movements (B2) of the wheel (1).

Abstract: A measuring apparatus for measuring a workpiece (2), comprising a turntable (1) for receiving the workpiece (2), a base plate (3) with a turntable bearing, and a foundation (12) on which the base plate (3) rests. The turntable (1) comprises a vertical shaft (W) which is situated beneath the turntable (1) and is held by means of the turntable bearing in the base plate (3). The turntable baring comprises an axial bearing (9) at a bottom face end (13) of the shaft (W) which is spaced from the turntable (1). The shaft (W) is rotatably held on the axial bearing in such a way that the weight (G) of the workpiece (2), when received by the turntable (1), is introduced into the foundation (12) through the turntable (1), the shaft (W) and the axial bearing (9).

Abstract: Device and method for positioning a precision part on a turntable (130). The device (100) comprises at least two distance sensors (121.1, 121.2, 121.3), which operate in a contactless manner and are situated in a previously known configuration to a rotational axis (A1) of the turntable (130). The measurement axes (124.1, 124.2, 124.3) of the distance sensors (121.1, 121.2, 121.3) are radially oriented in the direction of the rotational axis (A1) so that the measurement axes (124.1, 124.2, 124.3) of the distance sensors (121.1, 121.2, 121.3) meet in a virtual measuring point (MV). The distance sensors (121.1, 121.2, 121.3) are connected to analysis electronics (200). Output signals (a.1, a.2, a.3) of the distance sensors (121.1, 121.2, 121.3) may be processed on the basis of the analysis electronics (200), in order to allow coaxial centering of the precision part (11) in relation to the rotational axis (A1) upon placement of the precision part (11) on the turntable (130).

Abstract: Bar cutter head (20) for receiving multiple bar cutters of a first bar cutter set, the bar cutter head (20) having n receptacle openings (25.1-25.6) for receiving n bar cutters of the first bar cutter set, which are all situated along a first concentric cutter head nominal circle having a first cutter head nominal radius (r1). A first spiral-toothed bevel gear (11) can be milled in the single-indexing method in this configuration. The bar cutter head (20) additionally has m receptacle openings (26.1-26.6) for receiving m bar cutters of a second bar cutter set, which are all situated along a second concentric cutter head nominal circle having a second cutter head nominal radius (r2). A second spiral-toothed bevel gear can be milled in the configuration having the m bar cutters. It is thus a universally-usable cutter head (20).

Abstract: Machine (10) with an NC control unit (11) and at least one motor (12) which can be triggered by said control unit (11) and which forms an oscillatory system with its bearing and/or parts of the machine (10). The control unit (10) injects control variables (S1) into the motor (12) which trigger a desired motion of the motor (12). When necessary, the control unit (11) additionally injects predetermined signal variables (S2) into the motor (12) which trigger desired mechanical oscillations of the oscillatory system. The signal variables (S2) are predetermined in such a way that the mechanical oscillations are audible and/or tangible.

Abstract: A measuring apparatus for measuring a workpiece (2), comprising a turntable (1) for receiving the workpiece (2), a base plate (3) with a turntable bearing, and a foundation (12) on which the base plate (3) rests. The turntable (1) comprises a vertical shaft (W) which is situated beneath the turntable (1) and is held by means of the turntable bearing in the base plate (3). The turntable baring comprises an axial bearing (9) at a bottom face end (13) of the shaft (W) which is spaced from the turntable (1). The shaft (W) is rotatably held on the axial bearing in such a way that the weight (G) of the workpiece (2), when received by the turntable (1), is introduced into the foundation (12) through the turntable (1), the shaft (W) and the axial bearing (9).