Automatic chuck for workpieces
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 1984
Grant Date -
N/A
app pub date -
Jul 30, 1982
filing date -
Feb 10, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chuck for a workpiece comprising an annular piston housed in the main body of the chuck, an annular adjusting member supported on a cylindrical rod portion integral with the piston and movable only radially thereof, and three clamp levers pivotably mounted on the chuck main body and arranged at an equal spacing along the circumference thereof for radially driving clamp jaws on a front plate of the main body. Each of the clamp levers has a rear end in engagement with a tapered surface on the outer periphery of the adjusting member. With the portion of the workpiece to be machined held in its centered position, another portion of the workpiece is held by the clamp jaws, and three wedge-like lock members arranged between the cylindrical rod portion and the adjusting member at an equal spacing circumferentially thereof are individually advanced to lock the adjusting member.
First Claim
Other Claims data not available