Chuck for holding precision components
AssigneeCummins Inc.
InventorsMarian Trocki, Sam Lawson
Life of this patent
Estimating the term…
Abstract
A chuck assembly comprising a mandrel portion including an extending member sized and shaped to hold a workpiece; and a piston including a bore receiving the extending member, the piston mounted for supported movement on and relative to the extending member, the piston moving between a first position and a second position, the first position providing for insertion and removal of the workpiece to and from the extending member, the second position causing gripping force to be applied to the workpiece in at least two locations that are spaced longitudinally along the workpiece to inhibit relative movement between the mandrel and the workpiece.
Claims20
A chuck assembly, comprising:
- a mandrel including an extension formed on the mandrel and sized and shaped to hold a workpiece;
- a housing coupled to the mandrel;
- and
- a piston disposed within the housing and including a bore receiving the extension, the piston mounted for supported movement on the extension toward the mandrel to first position providing for insertion and removal of the workpiece to and from the extension, and away from the mandrel to a second position causing gripping force to be applied to the workpiece in at least two locations that are spaced longitudinally along the workpiece to inhibit relative movement between the mandrel and the workpiece.
An assembly for holding a workpiece, comprising:
- a mandrel including an extension configured to grip an end of the workpiece;
- a piston including a bore receiving the extension, the piston mounted for supported reciprocal movement on the extension, the piston including plurality of tabs having internal and external surfaces, the tabs being able to deflect to bring the internal surfaces into engagement with the extension;
- and
- a set of jaws mounted for pivotal movement, each jaw of the set of jaws including a surface positioned to receive force exerted by the external surfaces of the piston, wherein movement of said piston exerts force via the external surfaces of the piston and causes pivotal movement of said set of jaws.
An assembly for holding a workpiece, comprising:
- a mandrel including an extension;
- a piston including a plurality of tabs cooperating to define a bore receiving the extension, the piston mounted for supported reciprocal movement on and relative to the extension;
- and
- a set of jaws mounted for pivotal movement, wherein movement of said piston causes a portion of the piston to urge, through driven abutment, a portion of each of the set of jaws away from the extension, thereby causing pivotal movement of said set of jaws, wherein each jaw of the set of jaws includes a clamping surface operable to frictionally engage a workpiece placed within the assembly, pivotal movement of said set of jaws altering an angle assumed by the clamping surface.
Dependencies are inferred from the claim text.