Chuck
AssigneeSMW-Autoblok Spannsysteme GmbH
InventorsWalter Bronzino, Pier M. Bronzino
Life of this patent
Estimating the term…
Abstract
A chuck, each of the clamping jaws of which is adapted to be driven by a wedge bar that can be displaced in the chuck body beyond the clamping stroke to such an extent that the clamping jaws can be removed radially. A locking mechanism in the form of a rotatably held adjusting pin is provided for each clamping jaw. Each wedge bar, on that side that faces the adjusting pin, is provided with a slot-like recess for receiving the adjusting pin in an operating range of the chuck. The slot-like recess extends in the longitudinal direction of the wedge bar. In the operating position of the chuck, the adjusting pin is adapted to be inserted into the slot-like recess in an automatic manner.
Claims9
A chuck for turning machines, comprising:
- a chuck body;
- clamping jaws that are radially displaceably guided in said chuck body and are provided with teeth;
- wedge bars that are disposed in said chuck body transverse to a longitudinal axis thereof, said wedge bars being provided with teeth for engaging said teeth of said clamping jaws for driving the latter, said wedge bars being displaceable in said chuck body beyond a clamping stroke to such an extent that said teeth of said wedge bars do not engage said teeth of said clamping jaws so that said clamping jaws can be radially removed from said chuck body;
- and
- a locking mechanism for each of said clamping jaws, including an adjustment pin that is rotatably held in said chuck body and that is provided with an eccentric means for engaging an angular recess formed in said wedge bars, wherein each of said wedge bars, on a side facing one of said adjusting pins, is provided with a slot-like recess for receiving said adjusting pin in an operating range of said chuck, said slot-like recess extending in a longitudinal direction of said wedge bar beyond said clamping stroke, and wherein in an operating position of said chuck said adjusting pin is adapted to be inserted into said slot-like recess of said wedge bar in an automatic manner.
Dependencies are inferred from the claim text.