Apparatus and process for forming articles by heading

Details Apparatus and process for forming articles by heading Apparatus and process for forming articles by heading

1983-05-27

1985-02-12

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Clamp structure constitutes sole initial metal-deforming...

72316, 72354, 72359, 72294, 72404, 10 12R, 10 26, B21F 500

Patent

active

044983263

ABSTRACT:
An apparatus (100) and process for multistep heading of elongated stock to form a brush contact (10) with a relatively great reduction in the length of the wire stock material (386) achieved during successive heading steps, including a rotary holder plate (112) mounting a series of blank clamping holders (166) indexed through a series of stations and a series of coning dies (240) and punches (244) carried by independently actuated tooling plates (114, 116) which are axially advanced during forming of the blanks. A final forming step involves a reverse extrusion to create an endwise axial opening (26). The apparatus (100) also includes a feed mechanism (148) and a cutoff mechanism (160) for forming blanks from wire stock (386). A clamping member (178) is associated with each holder (166) for clamping the blank for securement during the forming steps, which is unlocked at an ejection station to enable removal of the formed article by an ejection mechanism (610). A broken tool detector (712) is also provided located at the station preceding the ejection station.

REFERENCES:
patent: 1983618 (1934-12-01), Lamond
patent: 2442142 (1948-05-01), Nettenstrom
patent: 2586336 (1952-02-01), Huck
patent: 2705333 (1955-04-01), Friedman
patent: 3124876 (1964-03-01), Putetti
patent: 3253287 (1966-05-01), Friedman
patent: 3301033 (1967-01-01), Bignell et al.
patent: 4237942 (1980-12-01), Dietrich

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