Apparatus for producing a bead on the periphery of a hollow cyli

Details Apparatus for producing a bead on the periphery of a hollow cyli Apparatus for producing a bead on the periphery of a hollow cyli

1979-11-02

1982-01-05

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72105, 113 73, B21D 1906, B21D 1704

Patent

active

043087370

ABSTRACT:
Beading apparatus is provided for producing a bead on the periphery of a hollow cylinder, such as a cam body. A rotatable inner ring and a rotatable outer ring co-act to deform a portion of the hollow cylinder therebetween to form a bead. To accommodate a firm backing of the exterior of the hollow cylinder during beading operations, while also permitting the removal of a beaded hollow cylinder from the apparatus, a depressor is provided which is formed as a basket with springing tongues separated by axially extending slots. A tapered cylinder liner is provided for forcing the springing tongues to a smaller diameter configuration to provide backing for the hollow cylinder during beading operations, with the springing tongues being movable to a larger diameter to permit removal of the hollow cylinder subsequent to beading operations.

REFERENCES:
patent: 1705843 (1929-03-01), Walter
patent: 1912258 (1933-05-01), Coyle
patent: 2170946 (1939-08-01), Greif
patent: 2348085 (1944-05-01), Merolle
patent: 2678467 (1954-05-01), McCain
patent: 3182482 (1965-05-01), Moller
patent: 3315626 (1967-04-01), Bofinger et al.
patent: 3765351 (1973-10-01), Kubacki et al.
patent: 4070888 (1978-01-01), Gombas
patent: 4176536 (1979-12-01), Panknin
patent: 4207761 (1980-06-01), Niemi

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