Quick change pilger die and assembly of same with rollstand arbo

Details Quick change pilger die and assembly of same with rollstand arbo Quick change pilger die and assembly of same with rollstand arbo

1998-07-07

1999-05-25

Hail, III, Joseph J.

Metal deforming

By use of roller or roller-like tool-element

Roller or roller-like tool-element of particular configuration

B21B 3920

Patent

active

059061308

ABSTRACT:
A pilger die assembly in which the die has an annular body with an opening extending from a central, through bore to the peripheral surface. The opening subtends a circumferential angle at the through bore of less than 180.degree.. The cylindrical arbor has a section of reduced cross-sectional dimension, preferably formed by a flat. The die is positioned with the opening aligned with the flat, slid into coaxial registration with the arbor, rotated to a captured position in which the opening is no longer aligned with flat on the arbor and then pushed axially to engage a key on the arbor in a keyway extending axially from one side face of the die. A stop screw threaded into the arbor adjacent the other side face of the die locks it in place.

REFERENCES:
patent: 3600913 (1971-08-01), Dorp
patent: 3688643 (1972-09-01), Prieur et al.
patent: 4674312 (1987-06-01), Cook
patent: 4819471 (1989-04-01), Cook
patent: 4866968 (1989-09-01), Cellier et al.
patent: 5418456 (1995-05-01), Cook et al.

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