Metal working – Plural diverse manufacturing apparatus including means for... – Type of machine
Patent
1985-08-30
1988-01-26
Weidenfeld, Gil
Metal working
Plural diverse manufacturing apparatus including means for...
Type of machine
408 9, 408124, 409193, 409231, B23P 2302, B23B 4706
Patent
active
047208970
ABSTRACT:
In an automatic fastening machine comprising a frame, drilling assembly carried by the frame for drilling a fastener receiving hole in a workpiece and an arrangement carried by the frame for installing a fastener in the hole drilled in the workpiece, the drilling assembly comprising a drill spindle having an axis of rotation and a drilling tool at one end thereof and rotatably mounted in a ram movable on the machine frame toward and away from the workpiece, the improvement of a brushless synchronous a.c. servomotor including an output shaft having an axis of rotation and an arrangement for connecting the motor directly to the drill spindle with the axis of rotation of the motor shaft coincident with the axis of rotation of the drill spindle. There is also provided a fan on the frame and positioned to direct cooling air onto the motor. There is further provided a heat sensor embedded in the motor winding and a readout operatively connected to the heat sensor for providing an indication of motor winding temperature.
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Andrews Mark J.
Orrell William E.
Gemcor Engineering Corp.
Webb Glenn L.
Weidenfeld Gil
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