Central drawbar coupling actuating mechanism

Details Central drawbar coupling actuating mechanism Central drawbar coupling actuating mechanism

1988-02-24

1989-02-14

Scott, Jr., Leon

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

279 87, 279 89, B23C 100

Patent

active

048043010

ABSTRACT:
Central drawbar operated tooling connection system wherein a pair of wedges are positively driven laterally outward and retracted by reciprocation of a central drawbar. Mechanical advantage of a key slot between drawbar and wedges plus mechanical advantage of the wedge angle amplifies a drawbar force for producing axial loading in the order of 5:1. Alternative forms of drawbar actuation such as by screw thread feed, preloaded spring with hydraulic release are optional.

REFERENCES:
patent: 4175898 (1979-11-01), Wood
patent: 4303360 (1981-12-01), Gayen et al.
patent: 4663818 (1987-05-01), Erickson
patent: 4735532 (1988-04-01), Hunt

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