Abstract: The invention relates to a method for machining a toothing (2) having an axis of rotation (C), in which a machining tool (4), which is rotationally driven about its axis of rotation (B), removes material from the toothing while executing a relative motion between the machining tool and toothing to generate a flank geometry of the toothing, which has been predefined over the full width of the toothing, in a machining operation, wherein the predefined flank geometry matches a motion control that defines a motion path of the tool center with respect to the toothing axis of rotation, said motion control having a defined, non-vanishing axial advancement with a defined advancing motion between machining tool and toothing, wherein in a first machining process, the relative motion is only executed for generating a part, more particularly a significant part (5), of the flank geometry according to this motion control, while a further part, more particularly the remaining part (6), of the flank geometry is generated in

Abstract: A method for machining a toothing of a workpiece held in a clamping, in which a toothing tool that rotates about its rotational axis and comprises cutting edges is brought into rolling chip-removing machining engagement with the toothing that rotates about its rotational axis, in order to produce a predetermined tooth flank end geometry in one or more machining passes, wherein during the machining pass which produces the tooth flank end geometry, monitoring responsive to the event of a removed chip being pressed into a machined tooth flank of the toothing by means of the rolling machining process is carried out and, if the monitoring responds, an additional toothing machining process that removes the material protrusion on top of the tooth flank end geometry formed by the chip that was pressed in is implemented automatically, which process is carried out in the same clamping of the workpiece and by means of the toothing tool.

Abstract: The invention relates to a method for the chip-removing production or machining of a workpiece by means of a tool, in which method a liquid, which mixes and accumulates with the chips produced during the machining process, is used for lubricating and/or cooling the machining process, and the chips are discharged from the accumulation counter to the downhill force along a discharge path by means of a magnetic force, wherein a return flow of the liquid carried by the discharged chips occurs due to the downhill force, and the return flow is deflected out of the discharge path and/or the discharge path has at least one point at which the supporting surface is temporarily withdrawn from the discharged chips.

Abstract: The invention relates to a method for generating a workpiece (3) having a second tooth system (2) incorporated into a first tooth system (1) having a specified tooth system geometry, wherein a first generative processing engagement, intersecting the second tooth system in the kinematics of the generating skiving, is made on the workpiece, which is in particular oversized in relation to the specified tooth system geometry, in particular on a transition from the first to the second tooth system, and then a second processing engagement, matching the specified tooth system geometry, in the kinematics of the generating skiving is carried out on the transition and a remaining oversize is in particular removed while doing so. The invention further relates to tools and to tooth-cutting machines suitable therefor.

Abstract: The invention relates to a moving system (100) for moving workpieces that are provided for gear cutting on a workpiece spindle (200) and have a workpiece axis of rotation, from a first position (A), taken up while they are being fed, into a third position (C) that differs from the first position by at least a smaller distance between the workpiece axis of rotation and the workpiece spindle axis, having a first movement unit (36, 32, 34) which moves a workpiece from the first position into a second position (B), different from the first and the third position, along a first movement path (AB), and a second movement unit (35) which moves the workpiece from the second position into the third position along a second movement path (BC), wherein the moving system is also designed to move machined workpieces back out of the third position and to hold and move more than one workpiece at the same time, wherein, while it is being moved on the first and on the second movement path, the workpiece is held by one and the s

Abstract: The invention relates to a method and a machine tool for hard finishing toothed gearing, particularly internally toothed portions (3), in which method a toothed hard finishing tool (W) which rotates about its axis of rotation is brought into rolling machining engagement with the machined toothed gearing in one pass or in a plurality of passes of differing radial infeed depth under an advance motion with a direction component parallel to the axis of rotation (C) of the machined toothed gearing and under a non-null axis crossing angle, and material is removed from the machined toothed gearing with a tooth flank region (4a) of the machine tool gearing with tooth thickness increasing in the tooth trace direction from the end face (5) facing the machined toothed gearing.

Abstract: The invention relates to a method for creating or machining toothings on workpieces in rolling machining engagement, in particular by gear shaping, in which an NC control of the rotary spindle drives of workpiece and tool comprises regulation of the rotation angle position of each particular spindle to setpoints depending on the process parameters associated with the process design underlying the method, wherein data containing information relating to a deflection, caused by the process forces that arise during machining and resulting in profile shape deviations on the workpiece, of the position of the tool flanks of tool and workpiece out of their position intended as per the process design, are used to determine a correction, taking the deflection into account, of the rotation angle position of workpiece spindle and/or tool spindle and thus to modify the setpoints of the regulation.

Abstract: A method of preparing a machining process of a toothed workpiece rotatably drivable around its rotation axis, the machining process to be executed by a tool rotatably drivable around its rotation axis, wherein, for establishing a synchronized matching engagement of the tool with the workpiece toothing, a contact with the workpiece can be or is generated by performing a movement via a positioning axis, and, by means of a surveillance of a movement dedicated to an axis of motion, a contact to the workpiece is used for establishing information about a relative rotary position of the workpiece, whereby the contact is made by a portion of the tool and the dedicated axis of motion is an axis capable to move or rotate the workpiece or the tool but which is not the positioning axis.

Abstract: The invention relates to a method for machining a toothing that is chamfered on a tooth head front edge, in which a material projection resulting on said tooth head front edge chamfer, caused by chamfer formation on a tooth front edge of the toothing by means of plastic deformation, and/or caused by removing a primary/secondary burr produced on said end face during production of the toothing and, if applicable, formation of the tooth front edge chamfer, is removed in a rotational operation by a machining procedure with a machining tool that has a cutting edge.

Abstract: The invention relates to a method for machining a workpiece, wherein, in particular in the skiving process, a toothing is produced on the workpiece in a first machining operation, in which a toothed cutting wheel, which rotates about the axis of rotation thereof and, on a first end face, comprises cutting edges on the toothing thereof, is coupled in a rolling manner to the workpiece which rotates about the axis of rotation thereof, and a cutting movement of the cutting edges, which has directional components in parallel with the workpiece axis, ends at an axial side of the workpiece toothing, the cutting edges of the cutting wheel forming a first operating region which can be positioned with respect to the workpiece by means of movement axes, and in which, in a second machining operation using a second operating region, the workpiece is machined on the side of the workpiece toothing at which the movement ends, wherein the second operating region can be positioned with respect to the workpiece by means of the

Abstract: The invention relates to a machine for the gear cutting machining of workpieces, in particular a gear shaping machine, comprising a spindle for holding a machining tool, and a drive by means of which the spindle can be rotationally driven about its spindle axis, and further comprising an arrangement. When said arrangement is actuated, a spindle rotation caused by the drive changes the axial relative position with respect to the spindle axis.

Abstract: The invention relates to a method for machining a toothing, wherein to form a chamfer on a tooth edge formed between an end face of the toothing and a tooth flank belonging to a tooth space of the toothing, material is removed from the tooth edge by cutting, by means of a machining tool equipped with a cutting edge, in a machining operation, wherein the machining tool is toothed and the machining operation is a skiving machining operation at an axis intersection angle between the rotational axes of the machining tool and the toothing, which does not extend beyond the tooth root section of the tooth space.

Abstract: The invention concerns a method for the chip-removing generation or machining of gear teeth on a workpiece which is driven in rotary movement about its rotary axis at very high rates of rotation, with a toothed tool that is driven in rotary movement about its rotary axis, wherein the tool and the workpiece are brought into a rolling tooth engagement in the manner of a helical gear transmission with their axes of rotation crossing each other at an angle different from zero, and wherein a further operation is performed on the workpiece and/or on its gear teeth during the time of operating engagement between the teeth of the tool and of the workpiece.

Abstract: The invention concerns a method of machining a workpiece, wherein an end-facing tooth edge of a gear profile of the workpiece that was generated by a chip-removing machining process is reworked at a first location into a chamfered edge by way of a plastic forming operation. The material which in the plastic forming operation was displaced towards the end surface of the gear profile is pushed outward as a material protrusion in the end surface of the tooth, while the material displaced towards the flank of the tooth is pushed outward as a material protrusion on the flank side of the chamfer, and the resulting material protrusions in the end surface and on the flank side are removed. The workpiece, while still carrying the material protrusion on the end surface of the gear profile, is transferred to a second location where the protrusion on the flank side of the chamfer is removed.

Abstract: The invention concerns a method to generate and/or machine gear teeth on a workpiece, wherein the workpiece is subjected to a movement from a first location where the workpiece, while being held by a clamping device connected to a workpiece spindle, is brought into machining engagement with a first tool, to a second location where the work piece, while remaining in its clamped condition, is brought into machining engagement with a second tool, wherein prior to performing the movement, the connection between the clamping device and the workpiece spindle is released, and after the movement, the clamping device is connected to another workpiece spindle for the machining engagement with the second tool.

Abstract: The invention concerns a method for the machining of the tooth edges between an axially facing surface and the tooth flanks of a gear with a machining tool that has a toothed contour. For the material-removing cutting operation, the machining tool, rotating about the axis of its toothed contour, is brought into rolling engagement with the toothed workpiece under a crossing angle different from zero between the rotary axes of the machining tool and the toothed workpiece.

Abstract: The invention concerns a gear-cutting machine for the machining of gear teeth with a gear-cutting tool driven in rotary movement about its tool axis, further with an assembly that includes a tool holder for the gear-cutting tool and is rotatably mounted on a carrier, allowing the tool axis to be set in a desired orientation, with an actuator device through which the assembly can be set to a desired angular position, and with a locking device that allows the assembly to be secured against being dislodged from the set angular position. According to the invention, a protruding arm that is a functional element of the actuator device is coupled to the assembly through a non-rotatable connection.

Abstract: The invention concerns a method for the chip-removing generation or machining of internal gear teeth on a workpiece which is rotatable about its rotary axis and radially delimits a free space that extends axially to one side beyond the internally toothed region and whose radial width narrows in the direction of its axial extension in at least one location. An externally toothed tool which is driven in rotary movement about its axis of rotation is brought from the opposite side into rolling engagement with the internally toothed region with the rotary axes crossed at an angle. Through the application of a mechanical force, the chips which are produced in the process and which are subject to a centrifugal force are caused to change their movement in the zone of narrowing width in a manner directed against the origin of the centrifugal force.

Abstract: A coolant delivery system which serves to deliver a cooling agent whose purpose is to carry away the heat that is generated in the process of machining a toothed profile by means of a skiving wheel rotating about its rotary axis. The coolant delivery system provides for a delivery path section which, seen in a projection onto a plane extending orthogonal to the rotary axis, is arranged closer to the axis than the toothed profile of the skiving wheel and has a dimensional component in the axial direction.

Abstract: A profile gauge that embodies a measurement geometry for a tool that has a toothed profile designed in particular for the skiving of toothed work pieces, wherein the profile gauge serves to determine at least one measurement quantity which can be used for a machining process, specifically a skiving process, that is to be performed with the tool and wherein, in a phase of said process, the toothed profile of the work piece that is to be generated is formed by a meshing engagement with the teeth of the tool, wherein the profile gauge is distinguished by having a toothed profile section with which, for determining the measurement quantity, the teeth of the tool are brought into a meshing engagement that corresponds to the tooth engagement between the tool and the work piece during the profile-forming phase. The invention further concerns a measuring device and a measurement method.