Patent
1975-08-14
1977-01-11
Lanham, C.W.
10 205, 10165, 10169, B23G 900, B23G 1100
Patent
active
040019063
ABSTRACT:
A machine for cutting slots in the shanks of screws includes a frame supporting a rotatable shaft with a disk attached thereto. A plurality of notches are formed in the periphery of the disk for carrying the screws and the shaft is rotated intermittently by an indexing means to move the disk along a predetermined path extending through fastener-receiving, slotting and exit stations. At the slotting station, two saws are advanced from retracted positions relative to the disk to cut slots in the shanks of two screws during a dwell period of the machine. At the fastener-receiving station, the fasteners are fed down a ramp from a feeder and are guided into the peripheral notches in the disk. An adapter fastened on the shaft above the disk includes a plurality of clamping members movable toward and away from the disk to clamp the fasteners on the disk as the fasteners are carried along the path through the slotting station. Mounted on an arm pivotally secured to the frame is a rotatable turret which is movable with the arm from an out-of-the-way position to an in-service position disposed above the adapter. Supported on the turret is a plurality of plungers adapted to engage with the clamping members on the adapter and urge the members into clamping engagement with the fasteners. The turret is mounted so as to rotate in a plane slanted relative to the plane of rotation of the adapter so that only those clamping members located in the direction of disk rotation between the fastener-receiving station and the exit station are depressed by the plungers.
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Combs E. M.
Lanham C.W.
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