Inventors:
John Garin - Birmingham MI
Allan J. Riggs - Ann Arbor MI
Robert S. Palmer - Penn Hills PA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
B25J 1702
Abstract:
The wrist includes a first frameless permanent magnet AC powered motor 22 in a first housing 12 with this motor providing movement of a rack 34 along a translational axis A1 with a second frameless permanent magnet motor 42 carried in a second housing 18 connected to the carriage 16 of which the rack 34 is a part so that the housing 18 is movable along an insertion or translation axis A1 with the second motor 42 providing a rotary output. Both of the motors are AC powered and the rotors thereof are each supported solely by a single X type bearing 28 and 48.