Chucks or sockets – Radially reciprocating jaws – Rack-and-pinion actuated
Patent
1986-08-06
1987-10-20
Bilinsky, Z. R.
Chucks or sockets
Radially reciprocating jaws
Rack-and-pinion actuated
279119, 279121, B23B 3116
Patent
active
047009578
ABSTRACT:
A power-operated chuck that is provided with a plurality of clamping jaws that are disposed in a chuck body in such a way as to be radially movable. The radial clamping movement of the clamping jaws is produced by a gear mechanism disposed in the chuck body and via an axial movement of a drive member. Radial positioning of the clamping jaws relative to the starting position of the drive member is adjustable, prior to carrying out a clamping stroke, for shifting the clamping stroke within the clamping range, with adjustment being effected by an adjustment member that acts simultaneously upon all of the clamping jaws. Via an additional axial movement, the drive member can be conveyed to a position that is beyond the clamping range, and in which position the clamping jaws are uncoupled from the drive member. An additional adjustment member is axially movably disposed in the chuck body. This member is connected via respective gear mechanisms to all of the clamping jaws, and during clamping movements of the drive member is carried along in a non-powered state. When the clamping jaws are uncoupled from the drive member, the adjustment member can be operated in a controlled manner to carry out a radial adjustment of the clamping jaws relative to the drive member.
REFERENCES:
patent: 1832480 (1931-01-01), Forkardt
Kempken Rainer
Stolzenberg Hans
Bilinsky Z. R.
Paul Forkardt GmbH & Co.
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