B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
205/27
B21C 1/00 (2006.01) H01R 43/16 (2006.01) H01R 13/33 (2006.01)
Patent
CA 1222478
Abstract: APPARATUS AND PROCESS FOR FORMING ARTICLES BY HEADING 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. The apparatus (100) includes a rotary indexing holder plate (112) having holders (166) adapted to receive blanks severed from the wire stock (386) and index the same through successive forming stations. Head forming is achieved by a series of coning dies (240) and punches (244) carried by independently actuated tooling plates (114, 116) which are axially advanced in timed relationship to cause the punches (244) and dies to engage the blanks and achieve the forming process. The final forming step involving a reverse extrusion to create an endwise axial opening (26) in the contact (10). The apparatus (100) also includes a feed mechanism (148) and a cutoff mechanism (160) for advancing wire stock (386) into a holder (166) at a load station, severing a length to form a blank same and thereafter clamping the blank, which is then indexed through the successive forming stations. A clamping member (178) is associated with each holder (166) which opens to allow insertion of the wire stock (386) into the holder (166) at the load station and thereafter clamping the same for securement during the forming steps. The clamping member (178) is also 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.
454360
Brandt David S.
Costello Samuel J.
Allied Corporation
Macrae & Co.
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