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US 4,102,539 AGranted
Power-actuated chuck, especially for turning machines such as lathes
OwnerGunter Horst Rohminventor
Life of this patent
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Abstract
A power-actuated chuck comprises a chuck body in which a plurality of chuck jaws are radially displaceable, each jaw having inclined teeth engageable by a substantially linearly displaceable wedge or camming element on the chuck body. A drive ring is connected to all of these wedge members for the joint displacement thereof and is, in turn, actuated by a tangentially displaceable slider which is shifted by an axially displaceable member connected to an axially effective piston-and-cylinder arrangement.
Claims10
A power-actuated chuck for a turning machine, comprising:
- a chuck body rotatable about an axis;
- a plurality of jaws angularly spaced about said axis and radially displaceable on said body to engage and disengage a workpiece received between said jaws;
- a drive ring rotatable on said body;
- mechanism connecting a said drive ring and said jaws for transforming angular displacement of said drive ring into radial displacement of said jaws;
- an actuating member axially displaceable on said body and connectible to an axially effective piston-and-cylinder arrangement;
- a slider member displaceable on said jaw generally tangentially with respect to said ring and operatively connected thereto for angularly displacing said ring upon linear displacement of said slider member, one of said members being formed with a tooth inclined to said axis and the other of said members being formed with a groove receiving said tooth whereby axial displacement of said actuating member linearly shifts said slider member.
3 more elements
Dependencies are inferred from the claim text.