Radial-jaw chuck for lathes and like turning machines
OwnerGunter H. Rohminventor
Life of this patent
Estimating the term…
Abstract
A radial-jaw chuck for lathes and like turning machines comprises a chuck body having a central jaw-tightening member, e.g. a sleeve, which by respective projections engages respective axially displaceable pins. The pins, in turn, are connected with chordal wedge bars by respective wedge mechanisms so that axial displacement of the pins shifts the wedge bars along the respective chords. The wedge bars, in addition, are connected with the respective chuck jaws by inclined-tooth arrangements so that the axial displacement of the tightening member causes radial displacement of the jaws.
Claims10
A radial-jaw chuck for a turning machine having a spindle and means for tightening the chuck, said chuck comprising
- a chuck body adapted to be mounted on said spindle and having an axis;
- a plurality of jaws radially shiftable on said body toward and away from said axis, each of said jaws being formed with an array of inclined teeth on a surface of the jaw;
- respective wedge bars displaceable in said body in directions transverse to said axis and formed with teeth engaging the teeth of said jaws for radially displacing the respective jaws upon linear displacement of each bar;
- a tightening member axially shiftable on said body by said means for tightening the chuck;
- respective drive pins axially shiftable in said body and engaged by said member for axial displacement thereby;
- and
- a respective wedge mechanism between each of said pins and the respective bar for translating axial displacement of the respective pin into corresponding linear displacement of the respective bar.
Dependencies are inferred from the claim text.