Clamping apparatus for fixing a collet to a chuck

Details Clamping apparatus for fixing a collet to a chuck Clamping apparatus for fixing a collet to a chuck

2005-04-26

2008-09-30

Bryant, David P. (Department: 3726)

Chucks or sockets

Expanding

Collet type

C279S002120, C279S046300

Reexamination Certificate

active

07429049

ABSTRACT:
A clamping apparatus comprises a chuck member and a collet member that includes, at its rear side, a peripheral shoulder. The top side of this shoulder is provided with a thrust surface adapted to engage radially displaceable clamping balls of the chuck member. The bottom side of the shoulder is provided with four centering grooves that cooperate with four centering cams provided in the chuck member. Upon clamping the collet member to the chuck member, the collet member is positioned in X- and Y-directions as well as regarding the angular orientation around the Z-axis by means of the centering cams of the chuck member engaging the centering grooves of the collet member. The collet member is provided with an annular rear surface adapted to rest on Z-reference surface portions of the chuck member upon clamping the collet member to the chuck member.

REFERENCES:
patent: 1302619 (1919-05-01), Woglom
patent: 2644929 (1953-07-01), Kumpf
patent: 3583714 (1971-06-01), Weltzer et al.
patent: 3583715 (1971-06-01), Jahrl
patent: 3744809 (1973-07-01), Bennett
patent: 4632407 (1986-12-01), Maxam et al.
patent: 4761104 (1988-08-01), Hillestad
patent: 5678967 (1997-10-01), Savoie
patent: 2003/0184028 (2003-10-01), Schlotterer
patent: 2007/0090611 (2007-04-01), Soroka et al.
patent: 299 21 03 (2000-03-01), None
patent: 2 694 222 (1994-02-01), None
patent: 729 051 (1995-05-01), None
patent: 53100723 (1980-05-01), None

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