Tool holder

Details Tool holder Tool holder

1985-11-14

1987-09-22

Godici, Nicholas P.

Cutters, for shaping

Including holder having seat for inserted tool

With separate means to fasten tool to holder

407 11, 407 93, 407100, 407101, B23B 2710, B23B 2716, B23B 2722

Patent

active

046952080

ABSTRACT:
A tool holder which is convertible to perform a variety of machining operations such as threading, turning and grooving comprises a support bar formed with a cavity which receives a mounting block having a seat adapted to support an insert so that the top surface of the insert is exposed and its cutting edge extends outwardly from the seat. The insert is clamped within the seat by a clamping block, which is secured atop the insert by a machine screw. The top edge of the clamping block is formed with a beveled bearing surface which engages the head of the machine screw so that forces are applied to the clamping block upon tightening of the screw which urge the insert downwardly, rearwardly and inwardly against the walls of the mounting block seat. The clamping block and support bar also include coolant delivery passageways terminating in a discharge orifice lying atop the top surface of the insert, which function to accelerate coolant from a low velocity, high pressure stream to a coolant jet having a velocity of at least 250 feet per second when ejected from the discharge orifice across the top surface of the insert toward its cutting edge.

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Catalog excerpts from Kennametal Inc. catalog, pp. 81-84.
Hydraulic Chipbreaking article from Production Engineering Laboratory (3 pages).

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