Apparatus and method for chamfering a workpiece with internal gearing
AssigneeLiebherr-Verzahntechnik GmbH
InventorJohannes Weixler
Life of this patent
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Abstract
The present disclosure relates to an apparatus for chamfering at least one edge of the gearing at the front side of a workpiece having internal gearing comprising at least one rotatably supported workpiece holder for holding the workpiece and comprising at least one rotatably supported tool holder for holding a chamfer hob, possibly a chamfer cut hob, wherein the tool holder is arranged at an internal hob arm whose free end can be traveled by a machine axis of the apparatus at least partly into the center opening formed by the internal gearing of the workpiece.
Claims23
An apparatus for chamfering at least one edge of a gearing at a front side of a workpiece having internal gearing, the apparatus comprising at least one rotatably supported workpiece holder for holding the workpiece, at least one rotatably supported tool holder for holding at least one chamfer hob, at least one machine axis, and a controller for controlling the at least one machine axis, wherein the controller is configured to control the machine axis to bring the chamfer hob into engagement with the at least one edge of the gearing for chamfering the at least one edge of the gearing, wherein the tool holder is arranged at an internal hob arm, and wherein the controller is configured to control the at least one machine axis to travel a free end of the internal hob arm at least partly into a center opening formed by the internal gearing of the workpiece for chamfering the at least one edge of the gearing.
An apparatus for chamfering at least one front-side edge of a gearing of a toothed workpiece having at least one rotatably supported workpiece holder for holding the workpiece and having at least one rotatably supported tool holder for holding at least one chamfer hob with the tool holder being travelable over at least one machine axis relative to the workpiece holder, wherein the apparatus permits a chamfering of edges of the gearing on both front sides of the workpiece by the same chamfer hob in that the chamfer hob held in the tool holder is brought into engagement with a first edge region of the gearing on a first side of the workpiece in a first radial direction with respect to an axis of rotation of the workpiece holder and, by traveling the tool holder relative to the workpiece holder, is brought into engagement with a radially oppositely disposed second edge region of gearing on a second side of the workpiece in a second radial direction with respect to the axis of rotation of the workpiece holder.
A method of chamfering at least one front-side edge of a gearing of a workpiece having internal gearing, the method including an apparatus comprising at least one rotatably supported workpiece holder for holding the workpiece and a chamfering performed by a chamfer hob held in a rotatably supported tool holder, wherein the tool holder is arranged at an internal hob arm whose free end is traveled for chamfer machining of a first edge of the internal gearing at least partly into a center opening formed by the internal gearing of the workpiece.
Dependencies are inferred from the claim text.