Chuck assembly
AssigneeUMA Corporation
InventorNorbert Hessbruggen
Life of this patent
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Abstract
An improved chuck assembly for a lathe comprises a housing member serving as a base, first holding means movably connected to the base for selectively radially gripping the side surface of a workpiece, and second holding means connected to the base for axially engaging an end surface of such workpiece. The second holding means is located generally centrally of the first holding means, the first holding means being movable both radially and longitudinally to clear the end of the workpiece without removal of the chuck.
Claims35
An improved chuck assembly for a lathe apparatus comprising:
- a base structure;
- first holding means for selectively radially gripping the side surface of a workpiece;
- second holding means for selectively forcibly axially engaging an end surface of such workpiece independently of said first holding means;
- and
- first and second means connecting said first and second holding means respectively to said base structure for movement independently of each other;
- said first holding means being both radially and axially movable and said second holding means being axially movable,
- actuator means operatively connected to said first and second holding means for effecting such selective independent movement.
An improved chuck assembly for a lathe apparatus comprising:
- a base structure;
- a plurality of circumferentially spaced jaw assemblies each mounted on said base structure and having respective radially inwardly facing radial gripping surfaces for gripping the side surface of a workpiece;
- and
- means cooperative between said jaw assemblies and said base structure for independently and sequentially moving said jaw assemblies radially and longitudinally with respect to said base structure, whereby said radial movement effects release of an outer end surface of a workpiece and said longitudinal movement exposes said surface.
Dependencies are inferred from the claim text.