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US 9,186,729 B2Granted
Chuck
AssigneeRoehm GmbH
InventorJohann Taglang
Life of this patent
Estimating the term…
Abstract
A chuck has a chuck body rotatable about an axis, a plurality of jaws radially displaceable on the body for gripping a workpiece, a chuck drive for rotating the chuck about the axis, and a center point axially shiftable in the body and axially engageable with the workpiece gripped by the jaws. An electric drive is coupled to the center point for axially shifting same.
Claims11
A chuck comprising:
- a chuck body rotatable about an axis;
- a plurality of jaws radially displaceable on the body for gripping a workpiece;
- chuck drive means for rotating the chuck about the axis;
- a center point axially shiftable in the body and axially engageable with the workpiece gripped by the jaws;
- an electric drive coupled to the center point for axially shifting same;
- a transmission between the rotary output and the center point for converting rotation of the output to axial displacement of the center point;
- an axially extending rod between the electric drive and the transmission;
- a spindle element between the transmission and the center point, the center point being detachably mounted on the spindle element;
- and
- an elastic element between the spindle element and the center point.
7 more elements
A chuck comprising:
- a chuck body rotatable about an axis;
- a plurality of jaws radially displaceable on the body for gripping a workpiece;
- chuck drive means for rotating the chuck about the axis;
- a center point axially shiftable in the body and axially engageable with the workpiece gripped by the jaws;
- an electric drive coupled to the center point for axially shifting same;
- a transmission between the rotary output and the center point for converting rotation of the output to axial displacement of the center point;
- an axially extending rod between the electric drive and the transmission;
- and
- a planetary transmission between the rotary output and the rod.
6 more elements
A chuck comprising:
- a chuck body rotatable about an axis;
- a plurality of jaws radially displaceable on the body for gripping a workpiece;
- chuck drive means for rotating the chuck about the axis;
- a center point axially shiftable in the body and axially engageable with the workpiece gripped by the jaws;
- an electric drive coupled to the center point for axially shifting same;
- a transmission between the rotary output and the center point for converting rotation of the output to axial displacement of the center point;
- an axially extending rod between the electric drive and the transmission;
- and
- a threaded tube shaft carrying the chuck body, the chuck drive means being an electrical motor connected to the tube shaft.
6 more elements
A chuck comprising:
- a chuck body rotatable about an axis;
- a plurality of jaws radially displaceable on the body for gripping a workpiece;
- chuck drive means for rotating the chuck about the axis;
- a center point axially shiftable in the body and axially engageable with the workpiece gripped by the jaws;
- an electric drive coupled to the center point for axially shifting same;
- an axially shiftable spindle rod between the center point and the electric drive;
- and
- a friction coupling detachably connecting the center point to the spindle rod.
5 more elements
Dependencies are inferred from the claim text.