Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Frictionally engaging sides of opening in work
Patent
1982-06-11
1984-11-20
Husar, Francis S.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Frictionally engaging sides of opening in work
82 2E, 82 4C, 82 45, B23B 4900, B23B 324, B23B 516
Patent
active
044836473
ABSTRACT:
An arrangement for performing machining operations at the end faces of pipes includes a tool holder which is equipped with respective tools and is mounted at least for rotation on a carrier. The carrier is mounted on the machine frame for movement normal to the axis of the pipe which is clamped in a clamping device mounted on the machine frame, such that the axis of the pipe extends parallel to the axis of the tool holder. The tool holder has a central passage in which there is guided a spindle having a tapering end portion close to the pipe. A cylinder-and-piston unit pushes the spindle out of the passage and into the interior of the pipe so that the tapering end portion of the spindle becomes coaxially nested in the open end of the pipe, its axis and thus the axis of the tool holder then coinciding with the axis of the inner surface of the pipe. The carrier is then arrested in this working position by a pair of clamping devices, and the spindle is retracted into the passage. The carrier for the tool holder is guided for vertical displacement by two guiding walls rigid therewith which are confined between and guided by two confining walls rigid with the machine frame. The carrier is supported on springs. The spindle rotates with the tool holder in its retracted position.
REFERENCES:
patent: 1813419 (1931-07-01), Parker
patent: 3605530 (1971-09-01), Doty
patent: 3778071 (1973-12-01), Buck
patent: 3944379 (1976-03-01), Elrod
patent: 4104937 (1978-08-01), Breaux
patent: 4147462 (1979-04-01), Appleby et al.
patent: 4364290 (1982-12-01), Astle
Translation of German 2549671.
Beine Wilhelm
Gardian Johannes
Benteler-Werke AG
Husar Francis S.
Katz Steven B.
Striker Michael J.
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