Holder for pin-type replaceable cutting inserts

Details Holder for pin-type replaceable cutting inserts Holder for pin-type replaceable cutting inserts

B - Operations, Transporting

26

D

29/35

B26D 1/12 (2006.01) B23C 5/22 (2006.01)

Patent

CA 1100744

22069 foreign HOLDER FOR PIN TYPE REPLACEABLE CUTTING INSERTS 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°. 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.

334185

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