Collet chuck aligning assembly for gem faceting machines
OwnerDouglas L. Hoffmaninventor
Life of this patent
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Abstract
Apparatus as described for centering a collet chuck relative to the longitudinal axis of a dop arm for a gem faceting machine. The apparatus includes a socket mounted to the dop arm and a plug slidably received within an open longitudinal bore formed within the socket. The plug mounts a collet chuck. Two longitudinally spaced sets of screws extend radially into the socket. The individual screws of the two sets can be turned against the plug to adjust the collet chuck into a secure precise coaxial relation with the dop arm axis.
Claims10
Apparatus for coaxially aligning a chuck on the dop arm of a gem faceting machine, comprising:
- an elongated plug having a forward plug end adapted to mount the collet chuck along a central chuck axis and a longitudinally spaced rearward plug end;
- a socket having an open longitudinal bore leading rearwardly along a bore axis from an open socket end to a closed socket end, said socket being adapted to mount to a dop arm along a dop arm axis;
- said socket slidably receiving the elongated plug along the length of said bore;
- a first set of three screws threadably mounted through the socket, said screws being equiangularly spaced about the bore axis and being radially extendable into the longitudinal bore;
- said first set of three screws being situated across a single plane perpendicular to the bore axis and situated adjacent the open socket end;
- a second set of three screws threadably mounted through the socket, said screws being equiangularly spaced about the bore axis and being radially extendable into the longitudinal bore;
- said second set of three screws being situated across a single plane perpendicular to the bore axis and is situated adjacent the closed socket end.
A collet chuck support apparatus for a gem faceting machine, comprising:
- an elongated dop arm formed along a dop arm axis, having a forward projecting end and a rearward end, said rearward end being adapted for mounting to a gem faceting machine;
- a socket at the forward end of the dop arm leading forwardly therefrom to an open socket end;
- an axial bore formed longitudinally within the socket extending along the dop arm axis rearwardly to a closed end from the open socket end;
- a first set of three screws threadably mounted through the socket and radially extendable into the bore;
- said first set of screws being equiangularly spaced about the dop arm axis adjacent to the open socket end;
- a second set of three screws threadably mounted through the socket and radially extendable into the bore;
- said second set of screws being equiangularly spaced about the dop arm axis adjacent the closed bore end;
- an elongated plug member receivable within the socket bore to engaged by the first and second pairs of screws and secured thereby to the socket and dop arm;
- a collet chuck having a longitudinal chuck axis mounted to the plug member;
- wherein the first and second screw sets are adjustable against the plug member to secure the plug member to the socket with the chuck axis and dop arm axis in coaxial alignment.
Dependencies are inferred from the claim text.