Joints and connections – Thimble: screw or cam
Patent
1985-12-31
1987-04-07
Kundrat, Andrew V.
Joints and connections
Thimble: screw or cam
403343, B25G 300, F16B 718
Patent
active
046556303
ABSTRACT:
A device for attaching a tool to the end of a robot arm includes a collet having a truncated conical body with a radially outwardly extending flange formed at a larger end and a cylindrical holder having a tapered aperture for receiving the conical body of the collet. The collet has radially outwardly extending threads formed on the periphery of the flange to engage the threaded interior of a tubular collar. A radially inwardly extending flange on the collar engages a radially outwardly extending flange on the holder to retain the collet conical body in the tapered aperture thereby providing precise X-Y location. The flange on the collet is attached to a face place which is in turn attached to a tool, and an end of the holder is attached to a mounting flange which in turn is attached to an end of a robot arm. Means for preventing relative rotation between the collet and the holder includes a pair of longitudinally extending slots and cooperating key, or a pair of circular apertures and a cooperating pin.
REFERENCES:
patent: 365178 (1887-06-01), Gracey
patent: 1706650 (1929-03-01), Brown
patent: 2567036 (1951-09-01), Shannon
patent: 3162457 (1964-12-01), Iacco
patent: 4281447 (1981-08-01), Miller et al.
patent: 4499650 (1985-02-01), Cannon et al.
Dana Corporation
Kundrat Andrew V.
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