Workpiece clamping device with face driver
AssigneeLiebherr-Verzahntechnik GmbH
InventorJohannes Weixler
Life of this patent
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Abstract
This present disclosure relates to a device for rotary entrainment of a workpiece clamped between two tips, which is mounted on a machine table of a machine tool, consisting of a base body with a centrically arranged tip and a plurality of concentrically arranged, axially shiftable driver elements which for the rotary entrainment of the workpiece are pressed against or into an end-face surface, wherein an axial position of the driver elements can be defined by active fixation after a centering operation of the workpiece, and to a receptacle opposite the base body, for example a tip or hollow tip, which serves a guidance of an opposite side of the workpiece.
Claims19
A machine tool device configured to receive a workpiece between two tips, the machine tool device comprising:
- a plurality of driver elements arranged radially around a central axis of a lower tip for rotary entrainment of the workpiece, wherein each driver element of the plurality of driver elements is adjustably mounted in an axial direction of the workpiece in a lower part of the machine tool device;
- wherein each driver element is configured to engage with an end face of the workpiece;
- wherein the plurality of driver elements is coupled to an actuator for selective engagement of the driver elements with the end face, wherein the actuator is a tension bolt arranged in an axial direction of the machine tool device;
- and
- wherein each driver element of the plurality of driver elements is further adjustable via an adjusting element.
A machine tool device configured to receive a workpiece between two tips, the machine tool device comprising:
- a plurality of compliantly mounted supporting bolts for supporting the workpiece;
- and
- a plurality of driver elements arranged radially around a centering tip for rotary entrainment of the workpiece, wherein:
- each driver element of the plurality of driver elements is adjustably mounted in an axial direction of the workpiece in a lower part of the machine tool device;
- each driver element of the plurality of driver elements is further adjustable via an adjusting element;
- each driver element is configured to engage with an end face of the workpiece;
- the plurality of driver elements is coupled to an actuator for selective engagement with the end face;
- and the actuator is a tension bolt arranged in an axial direction of the machine tool device;
- wherein the supporting bolts are coupled to the tension bolt;
- wherein the driver elements are coupled to clamping elements;
- and
- wherein the clamping elements are configured to retain the driver elements in engagement with the end face.
A method for clamping a workpiece with a device, comprising centering the workpiece between two tips along a direction perpendicular to a central axis of the workpiece, engaging driver pins of the device with an end face of the workpiece by actuation of a tension bolt, and subsequently retaining the driver pins in engagement with the end face by actuation of clamping elements coupled to the driver pins;
- wherein each driver pin is further adjustable via an adjusting element.
A method for clamping a workpiece with a device, comprising centering the workpiece between two tips along a direction perpendicular to a central axis of the workpiece, engaging driver pins of the device with an end face of the workpiece by actuation of a tension bolt, and subsequently retaining the driver pins in engagement with the end face by actuation of clamping elements coupled to the driver pins;
- wherein the workpiece is supported by a plurality of resiliently mounted supporting bolts during centering of the workpiece, and wherein actuation of the tension bolt retracts the supporting bolts.
Dependencies are inferred from the claim text.