Devices for the grooving of tubes

Details Devices for the grooving of tubes Devices for the grooving of tubes

1994-07-14

1996-06-18

Crane, Daniel C.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

72 96, 72283, 72 75, B21B 2710

Patent

active

055266630

ABSTRACT:
A device for grooving the internal surface of tubes is disclosed as including a holding die for holding in position inside the tube a floating chuck equipped with a grooved chuck and a grooving unit including a rotating cage for retaining a number of rotating balls for compressing the tube wall against the grooved chuck to form a groove in the tube. The grooving unit includes a finishing die. The rotating cage includes a supporting member of which the internal profile, in an axial section is an arc of a circle, and a cage closure plate for retaining the balls in the cage and further includes a lubricator for the interior of the cage.

REFERENCES:
patent: 4373366 (1983-02-01), Tatsumi
patent: 4512178 (1985-04-01), Blevins et al.
patent: 4712407 (1987-12-01), Yoshiki et al.
patent: 4876869 (1989-10-01), Saeki et al.

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