Floating work driver chuck
AssigneeN. A. Woodworth Company
InventorsPaul Toth, Kenneth O. Cross
Life of this patent
Estimating the term…
Abstract
A work driver chuck having face and actuator plates interconnected by the pivot shafts of work holding cam jaws carried by and journaled for rotative movement in the face plate. Although normally centered on the rotational axis of the chuck, the assembly of plates and jaws is released for limited universal free floating movement during the actual work clamping operation to compensate for eccentricity of or surface irregularities in the workpiece. The actuator plate is slidable relative to the face plate and is operative as it moves to turn the jaws angularly into or out of engagement with the work.
Claims17
A work driver chuck comprising a rotatable body;
- a work holding assembly carried by said body including
- a face plate mounted for limited free floating universal radial and angular movement relative to said body,
- circumferentially spaced cam jaws having pivot shafts journaled in said face plate and movable about said pivot shafts into and out of clamping engagement with a workpiece in said chuck,
- a pressure plate reciprocally movable on said pivot shafts toward and from said face plate, and
- first actuator means operable in response to reciprocable movement of said pressure plate in one direction to turn said pivot shafts in a direction to engage said cam jaws with said workpiece and in response to movement thereof in the other direction to turn said pivot shafts in a direction to disengage said cam jaws from said workpiece;
- second actuator means for reciprocally driving said pressure plate;
- and
- means rotatably drivingly connecting said body and said work holding assembly.
A work driver chuck comprising
- a rotatable body;
- face and pressure plates carried by and rotatable with said body;
- means interconnecting said face and pressure plates for limited mutual universal radial and angular movement relative to the chuck axis and for movement axially relative to each other;
- jaw assemblies carried by and movable universally with said face and pressure plates and having pivoted cam jaws;
- actuator means for moving said pressure plate axially relative to said face plate;
- and
- means actuated by movement of said pressure plate axially relative to said face plate for pivoting said cam jaws into and out of engagement with a workpiece in said chuck.
Dependencies are inferred from the claim text.