Compensation device and clamping device for workpieces equipped with a compensation device of this type
View Patent ↗The invention relates to a compensation device for the flat-compensated clamping of a workpiece, in particular a toothed workpiece or a workpiece to be toothed, carried out via a clamping device defining a clamping axis, said workpiece having an axis of rotation and abutting a contact surface of the compensation device with a flat side, wherein the workpiece axis of rotation is coaxially centered to the clamping axis when the clamping device is actuated, and any deviations arising therefrom of the abutting flat side from an orthogonality to the workpiece axis of rotation are compensated by a deflection movement carried out at the compensation device, wherein the contact surface has at least three contact areas spaced apart from one another and the deflection movement comprises an axial movement of the contact areas.
1. A compensation device ( 10 ) for the flat-compensated clamping of a workpiece, said workpiece comprising a toothed workpiece or a workpiece to be toothed, the clamping being carried out via a clamping device ( 100 ) defining a clamping axis (X), said workpiece having an axis of rotation and abutting a contact surface ( 1 ) of the compensation device with a flat side, the workpiece axis of rotation being coaxially centered to the clamping axis (X) when the clamping device ( 100 ) is actuated, and any deviations arising therefrom of the abutting flat side from an orthogonality to the workpiece axis of rotation being compensated by a deflection movement carried out at the compensation device ( 10 ),
characterized in that the contact surface ( 1 ) has at least three contact areas ( 1 a , 1 b , 1 c ) spaced apart from one another and the deflection movement comprises an axial movement of the contact areas ( 1 a , 1 b , 1 c ),
wherein axially rigid areas ( 3 a , 3 b , 3 c ) are formed between the contact areas ( 1 a , 1 b , 1 c ) and
wherein the contact areas ( 1 a , 1 b , 1 c ) project axially relative to an axial height level of the rigid areas ( 3 a , 3 b , 3 c ) and
wherein the position of one contact area ( 1 a , 1 b , 1 c ) remains unaffected by a deflection movement carried out at another contact area ( 1 b , 1 c ; 1 a , 1 c ; 1 a , 1 b ).
2. Compensation device according to claim 1 , wherein the contact areas ( 1 a , 1 b , 1 c ) are resiliently mounted and the deflection movement is resiliently reversible.
3. Compensation device according to claim 1 wherein a structural material weakness ( 4 a , 4 b , 4 c ) is provided axially below the contact areas.
4. Compensation device according to claim 1 wherein the material of the compensation device is not flexible and the compensation device is an integral mounting unit.
5. Compensation device according to claim 1 wherein the deflection movement is carried out according to the beam bending principle.
6. Compensation device according to claim 5 , wherein a beam ( 2 a , 2 b , 2 c ) that is supported on both sides is associated with each of the contact areas ( 1 a , 1 b , 1 c ), on which beams said contact areas are arranged in the center.
7. Compensation device according to claim 6 wherein the axially rigid areas ( 3 a , 3 b , 3 c ) include the beam support.
8. Compensation device according to claim 1 having a ring-shaped structure.
9. Compensation device according to claim 1 wherein the compensation device has a ring-shaped base plate ( 5 ) on the side thereof remote from the contact, the ring thickness of which plate, extending orthogonally to the axial direction, is greater than that of the contact areas ( 1 a , 1 b , 1 c )/beams ( 2 a , 2 b , 2 c ).
10. Compensation device according to claim 1 wherein the compensation device has fixing areas in the form of axial through-holes ( 6 ).
11. Clamping device for clamping a toothed workpiece or a workpiece to be toothed, comprising a compensation device according to claim 1 .
12. Spindle arrangement comprising a clamping device according to claim 11 .