B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/30
B23B 31/02 (2006.01) B23B 31/113 (2006.01)
Patent
CA 1133730
ABSTRACT OF THE DISCLOSURE A spring actuated chuck wherein a slotted flange, tapered shank tool adapter is clamped to a holder by a spring actuated clamping and ejecting nut assembly which includes a nut having threaded engagement with the holder, a clamping ring rotatably adjustably secured to the nut having clamping lugs to engage the flange of the adapter to clamp the adapter to the holder, an ejector axially retained in the nut and non-rotatably axially slidably engaged with the holder to engage the flange of the adapter thus to release the adapter from the holder, and a latch member extending axially from the holder and engaged with the clamping ring operative upon movement by the flange of the adapter to release the nut assembly for spring actuated clamping movement. Release of the adapter is effected by rotation of the nut in the opposite direction against spring pressure for engagement of the ejector with the flange of the adapter and for re- engagement of the latch member with the clamping ring. The spring actuated chuck herein is further characterized in that the threads of the nut and an annular chamber containing the nut actuating spring are isolated from fine chips and coolant when a tool mounted in the adapter is performing a cutting operation.
356208
Benjamin Milton L.
Miles Wilbur N.
Erickson Tool Company
Swabey Ogilvy Renault
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