Cutters – for shaping – Rotary cutting tool – Including holder having seat for inserted tool
Patent
1976-01-19
1980-04-01
Hinson, Harrison L.
Cutters, for shaping
Rotary cutting tool
Including holder having seat for inserted tool
407 46, 407 48, 407101, 407104, B26D 112
Patent
active
041959558
ABSTRACT:
A holder or nest for pin-type replaceable cutting inserts having a circular aperture centrally disposed therein, includes a pin extending perpendicularly to the face of the holder, the pin being cylindrical and being formed with a pair of discrete opposed axially-extending portions, each of the portions comprising a segment of a circular cylinder having a periphery less than 180.degree.. The radius of each of the portions is selected equal to the radius of the aperture in the cutting inserts. The portions meet in a plane normal to the face of the tool holder and disposed perpendicularly to the axis of the clamping screw which is threadedly receivable in the body of the holder. By this means the clamping force exerted by the screws, forces the insert to seat itself on the lateral surface of the one axially extending portion of the pin which is inwardly disposed in the cutter body, thereby to achieve positive seating of the insert on the pin in a direction perpendicular to the pin and parallel to the plane between the axially extending portions thereof.
REFERENCES:
patent: 3405433 (1968-10-01), Williams
patent: 3914840 (1975-10-01), Ferree
patent: 3946475 (1976-03-01), Hopkins
patent: 4078868 (1978-03-01), Evkfritz
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