Tool holder and gun drill or reamer

Details Tool holder and gun drill or reamer Tool holder and gun drill or reamer

1987-12-09

1989-03-28

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Tool or tool-support with torque-applying spline

279 52, 408 57, 408239R, 408705, 409232, 409234, B23B 4102

Patent

active

048158992

ABSTRACT:
A tool holder for a gun drill or reamer has internal and external cylindrical rear end pilot portions and a radial pilot flange for precisely connecting coaxially with a rotatable and axially moveable power source. A sleeve confined coaxially within the internal cylindrical portion has an axially extending flat spline surface for effecting driving engagement with a mating flat of a tool shank. A contractible conical split collet at the forward end of the holder coaxially clamps the tool shank when moved axially to a clamping position by means of a non-rotatable nut secured to the collet for cocking out of axial alignment therewith to assure precise coaxial clamping of the tool shaft. The nut is in screw threaded engagement with a rotatable and non-axially moveable collar provided with beveled gear teeth for rotation by a Jacobs type tool.

REFERENCES:
patent: 4642005 (1987-02-01), Kondo et al.

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