Tool holder for shrink-fit attachment of rotating tools with...

Metal working – Method of mechanical manufacture – Assembling or joining

Reexamination Certificate

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Details

C409S232000, C409S234000, C409S218000, C279S156000, C279S102000, C408S23900A

Reexamination Certificate

active

07137185

ABSTRACT:
The invention relates to a tool holder (10) for shrink-fit attachment of rotating tools (11) with predominantly cylindrical shafts (12), having a chuck (13) with a clamping section (14) containing a conical receiving bore (15) to accommodate an insert (30) that has a cylindrical bore (32) to accommodate the tool shaft (12) and has a conical outer surface (31) to be contained in the receiving bore (15) of the clamping section (14). The insert (30) is embodied so that after the axial insertion of the insert (30) into the hot chuck (13), a contact is produced between the insert (30) and the chuck (13) on the one hand and between the insert (30) and the inserted tool shaft (12) on the other hand and, when the chuck (13) cools, the tool shaft (12) is clamped, wherein it is possible to bridge over large diameter tolerances while achieving maximum clamping forces (FIG. 1).

REFERENCES:
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patent: 3372452 (1968-03-01), Firth et al.
patent: 3678632 (1972-07-01), Eversole et al.
patent: 5311654 (1994-05-01), Cook
patent: 6260858 (2001-07-01), DeLucia
patent: 6280126 (2001-08-01), Slocum et al.
patent: 6315506 (2001-11-01), Mizoguchi
patent: 6390482 (2002-05-01), Hanoch
patent: 6595528 (2003-07-01), Voss
patent: 6857177 (2005-02-01), Taylor
patent: 19638808 (1998-03-01), None
patent: 0618030 (1993-10-01), None
patent: 2002120115 (2002-04-01), None
patent: 2002283162 (2002-10-01), None

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