Back to results
US 6,371,493 B1Granted
Adaptive clamping type chuck
AssigneeSandvik Tobler S.A.
InventorJacques Barbieux
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSandvik Tobler S.A.
InventorJacques Barbieux
Estimating the term…
The invention provides a chuck including a plurality of jaws (8), each of which is fixed to the forward end of a jaw carrier arm (5), said arm (5) being borne by a pivot joint (6) mounted on the body (1) of the chuck and the rotation of which imparts to the jaw (8) an essentially radial movement, said rotation being controlled by radially displacing a sliding member (4) pushing a truncated sphere (10) housed between said sliding member (4) and a recess provided in the arm (5) to the rear of said pivot joint (6). Furthermore, said truncated sphere (10) is capable of sliding over the plane surface of contact with the sliding member (4), said jaw carrier arm (5) then sliding in the pivot joint (6) in an essentially axial direction, while being drawn rearwards by a return spring (7). Application to the clamping of a piece while pressing it axially against its stops.
A chuck including a plurality of jaws, each of which is fixed to the forward end of a jaw carrier arm, said arm being borne by a pivot joint mounted on the body of the chuck and the rotation of which imparts to the jaw an essentially radial movement, said rotation being controlled by radially displacing a sliding member pushing a truncated sphere housed between said sliding member and a recess provided in the arm to the rear of said pivot joint, wherein said truncated sphere is capable of sliding over the plane surface of contact with the sliding member, said jaw carrier arm then sliding in the pivot joint in an essentially axial direction, while being drawn rearwards by a return spring.
A chuck including a plurality of arms having respective forward ends arranged for respectively carrying a same plurality of jaws, each of the arms being slidably borne by a pivot joint mounted on a body of the chuck for allowing rotation of the jaw in a direction generally radial to a common axis of the chuck, under control of a device arranged for radially displacing a sliding member having a front contact surface, the front contact surface extending in a plane substantially parallel to the common axis, for pushing an opposed plane contact surface of a truncated sphere housed in a recess provided in a rear portion of the arm located rearward of the pivot joint, the opposed plane contact surface and the front contact surface allowing relative axial forward and rearward movements of the arm, the rearward movement of the arm under the action of a rearward biased return spring.
Dependencies are inferred from the claim text.