Tool holder for the clamping of cutting inserts

Details Tool holder for the clamping of cutting inserts Tool holder for the clamping of cutting inserts

1996-04-10

1997-09-23

Howell, Daniel W.

Cutters, for shaping

Including holder having seat for inserted tool

With separate means to fasten tool to holder

407108, B23B 2904, B23B 2716

Patent

active

056697422

ABSTRACT:
A tool holder has a insert-support surface and a wedge-support surface. A pin projects upwardly from the insert-support surface and enters a through-hole of a cutting insert that is seated on the insert-support surface. The wedge-support surface includes a front portion disposed adjacent the insert-support surface and a rear portion extending upwardly from the front portion at an inclination. A wedge contacts both of the front and rear portions and is secured by a fastening screw which passes through the wedge and enters the front portion. The wedge includes a front insert-engaging bulge, and a lower heel which contacts the front portion and defines a pivot axis which is located closer to the pin than is the bulge. Upon tightening of the screw, the wedge is (a) pushed toward the insert by the rear portion of the wedge-support surface to push the insert against the pin, and (b) caused to pivot about the pivot axis in a direction producing a slight downward movement of the bulge.

REFERENCES:
patent: 3192602 (1965-07-01), Copeland
patent: 3339256 (1967-09-01), Melinder
patent: 3905081 (1975-09-01), Wirfelt
patent: 4334807 (1982-06-01), Nessel
patent: 5586844 (1996-12-01), Nyman

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