A tool head for a gear cutting machine includes a first spindle unit having a first spindle shaft and a second spindle unit having a second spindle shaft. A tool is axially receivable between the first spindle shaft and the second spindle shaft. A balancing device is associated with each spindle unit. The balancing device radially surrounds the respective spindle shaft and is axially arranged between a tool-side spindle bearing of the corresponding spindle unit and the tool-side end of the corresponding spindle shaft. The tool is axially clamped between the two spindle shafts by a pull rod and a clamping element.

A direct-drive two-axis machining head includes a head-drive unit and a shaft-drive unit. The head-drive unit includes a head-installing interface, a first motor, an axis-A supporter, and a first brake mounted at an outermost rim of either a first motor seat or a stator of the first motor for braking the axis-A supporter. The shaft-drive unit further includes an axis-A-installing interface, a second motor, a shaft connector, and a second brake mounted at an outermost rim of a second motor seat of the second motor for braking the shaft connector. The head-drive unit further includes a fixation sheet metal and a pipeline shield. The fixation sheet metal connects the rotor seat. One end of the pipeline shield connects the fixation sheet metal, while another end thereof connects the head-installing interface so as to shield a plurality of pipelines.

A method for deburring bevel gears using a deburring tool, which comprises at least one cutting edge, having the following steps: rotationally driving the deburring tool around a deburring spindle axis, rotationally driving a bevel gear around a workpiece spindle axis, wherein the rotational driving of the deburring tool and the rotational driving of the bevel gear take place in a coupled manner with an inverse coupling transmission ratio, it is a continuous method for deburring, in which the cutting edge executes a relative flight movement in relation to the bevel gear, the relative flight movement is defined by a hypocycloid, and wherein a burr is removed at least on one tooth edge of a tooth gap in the region of the bevel gear toe and/or the bevel gear heel by a cutting contact of the cutting edge with the tooth edge.

A direct-drive two-axis machining head includes a head-drive unit and a shaft-drive unit. The head-drive unit includes a head-installing interface, a first motor, an axis-A supporter, and a first braking module mounted at an outermost rim of either a first motor seat or a stator of the first motor for braking the axis-A supporter. The shaft-drive unit further includes an axis-A-installing interface, a second motor, a shaft connector, and a second braking module mounted at an outermost rim of a second motor seat of the second motor for braking the shaft connector. The head-drive unit further includes a towline fixation sheet metal and a towline pipeline shield. The towline fixation sheet metal connects the rotor seat. One end of the towline pipeline shield connects the towline fixation sheet metal, while another end thereof connects the head-installing interface so as to shield a plurality of pipelines.

The present disclosure relates to an apparatus for use in a gear cutting machine for the gear-coupled manufacture or machining of workpieces having at least one machine table at which a workpiece spindle is arranged for holding a clamping apparatus for a workpiece, and having at least one tool spindle for holding a machining tool, wherein the tool spindle is equipped with an integrated balancing system for balancing the tool. In accordance with the present disclosure, a further independent balancing system for the workpiece spindle is integrated in addition to the balancing system in the tool spindle.

A skiving machine has a workpiece spindle and a tool spindle for holding a work wheel to undergo gear cutting, which tool spindle can be rotationally driven synchronously with the workpiece spindle. The workpiece is inclined at an axis intersection angle with respect to the tool spindle for holding a tool retainer. A tool changing system fastened to a housing of the tool spindle is provided, and has a tool carrier, which can be rotated about a tool-carrier axis of rotation and which has carrying plates rotationally arranged around the tool-carrier axis of rotation, each carrying plate having a bearing opening for holding a tool retainer carrying a skiving tool, wherein tool retainers supported in the bearing openings can be selectively coupled to the tool spindle rotation of the tool carrier about the axis of rotation.

To provide a gear machining device and a gear machining method which achieve machining of tooth flanks having different torsion angles with high degree of accuracy. In a gear machining device, a side surface of a tooth of a gear includes a first tooth flank and a second tooth flank having a different torsion angle from the first tooth flank, a cutting blade of a machining tool has a blade traces having a torsion angle determined based on a torsion angle of the second tooth flank and an intersection angle between a rotation axis of a workpiece and a rotation axis of the machining tool so as to allow the second tooth flank to be machined on the pre-machined first tooth flank.

A removable assembly (38) comprising an information holding unit (36). The removable assembly is positionable in a material object (2), such as a tool, tool component or part, machine, machine component or part, device, etc., and can be removed therefrom by fluid pressure whereby the material object can be subjected to processing that would otherwise cause damage to, or destroy, the information holding unit (36).

A device for machining a gear using a rotating machining tool. The device has a motor spindle having a drive motor and motor spindle shaft drivable by the drive motor for driving the machining tool. The device has an attachment structure for releasably attaching the device to a work spindle of a tool head. The attachment structure is configured so the tool axis is parallel to the work spindle axis when the device is attached to the work spindle. A device is further disclosed to connect a machining tool to a counter bearing in a simple manner. For this purpose, the counter bearing has a hollow shaft. A mandrel having first and second clamping regions are arranged at positions along the longitudinal axis of the mandrel. The mandrel is inserted through the hollow shaft along the tool axis into a longitudinal bore of the machining tool.

A method for producing gears, wherein in a first step a set of teeth is formed by means of a skiving wheel rotationally driven by a tool spindle in a workpiece gear rotationally driven synchronously thereto by a workpiece spindle, wherein the workpiece spindle and the tool spindle are at an axis intersection angle to each other and the advancement occurs in the tooth-flank extension direction, and wherein in a second step at least some teeth of the set of teeth are machined by means of a tooth-machining tool. A combined tool is used, in the case of which the toothmachining tool and the skiving wheel are fixedly connected to each other. Between the two steps, the combined tool remains connected to the tool spindle and the workpiece gear remains connected to the workpiece spindle. Between the two steps, merely the relative position of the tool spindle in relation to the workpiece spindle and the rotational speed ratio of the two spindles are changed.