Chuck jaw and spindle alignment attachment
AssigneesChristopher Salminen, Dominick A. Whitsel
InventorGalen B. McMullen
Life of this patent
Estimating the term…
Abstract
Provides an annular frame for attachment to the outer end of a circle of soft jaws carried by a radially adjustable chuck of a rotary machining assembly, whereby in spite of looseness or misalignment of the chuck jaws, their soft jaws can then be shaped to hold a subsequent workpiece in absolute alignment with the spindle. Frame has number of movable attachment arms corresponding to the number of jaws, which arms are adjustable along respective radial or arcuate guideways so as to engage the circle of soft jaws when opened to different circumferences. When each arm has two adjustable frame-attachment points, annulus is thereby self-centering. For use with (radially slidable) arms having single frame-attachment point, auxilliary centering device is provided.
Claims3
A chuck jaw attachment for holding a set of chuck-connected soft jaws in radially tensioned position for rotationally forming an arcuate work-engaging surface thereon by operation of a coaxial spindle, said attachment comprising:
- an open-centered, rigid, enclosure frame having means for removable attachment to the ends of a circle of soft jaws which are carried on radially adjustable chuck jaws generally axially aligned with said spindle, said means comprising a plurality of jaw attachment arms, each adjustably connected to said frame and individually pivotally connected thereto and swingable along an arcuate path radiused therefrom and aligned with a cylindrically projecting foot of the arm which is receivable in a corresponding socket of the outer end of a soft jaw, the frame additionally having anchorage means for securing each arm at a selected position along said arcuate path when the foot-attached soft jaws are located coaxial to said spindle.
The combination comprising a chuck jaw attachment for holding a set of chuck-connected soft jaws in radially tensioned position for rotationally forming an arcuate work-engaging surface thereon by operation of a coaxial spindle, said attachment comprising:
- an open-centered, rigid, annular enclosure frame having means for removable attachment to the ends of a circle of soft jaws which are carried on radially adjustable chuck jaws axially aligned with said spindle, said means comprising a plurality of jaw attachment arms each adjustable connected to said frame and each individually having pivotal means for coupling to an end of one of said soft jaws when in varied radial locations with the soft jaws outtilted to the maximum permitted by individual looseness of the supporting chuck jaw, and
- a centering device comprising a tripod characterized by arcuate-grooved contact feet, the grooves of which are curved corresponding to that of the annular frame and hence are registrable with an edge thereof, said device further having axial aligning means alignable with the spindle of said machine, whereby said frame may be located coaxial with the circle of soft jaws and spindle.
Dependencies are inferred from the claim text.