The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 1991
Filed:
Apr. 26, 1989
Helmut Heel, Lengenwang, DE;
Franz Friedl, Marktoberdorf, DE;
Ott Maschinentechnik GmbH, Kempten, DE;
Abstract
In a chuck for axially clamping two machine parts which are releasable from each other, on the first machine part (1) are provided a hollow centring attachment (3), a contact face (6) surrounding the attachment, and an annular groove (8) formed on the inside of the attachment (3) and comprising a groove flank (9) tapering conically towards the free end of the attachment. The second machine part (2) comprises a holding bore (4) which is adapted to the attachment (3) and which is surrounded by an end face (7) against which the contact face (6) can be pressed. In the second machine part are provided several clamping jaws (10) which are each supported by a first end (10a) against a groove flank (12) in the second machine part (2). Arranged radially within the clamping jaws (10) and axially movably is a clamping sleeve (15) which comprises in the region of each end (10a, 10b) of the clamping jaws ( 10) a clamping cone (17, 18) by means of which the clamping jaws (10) are movable radially outwards parallel to themselves and their ends (10a, 10b) can be pressed against the associated groove flanks (9, 12). The clamping jaws (10) comprise at both their ends (10a10b) clamping surfaces (11, 14) whose angular position relative to the central axis (A) is adapted to the groove flanks (9, 12), so that during the whole clamping process there is surface contact between the clamping surfaces (b 11,14) and the groove flanks (9, 12).