Press slide with extendable and retractable tool support

Details Press slide with extendable and retractable tool support Press slide with extendable and retractable tool support

B - Operations, Transporting

21

D

164/103, 138/65.

B21D 24/00 (2006.01) B21D 28/00 (2006.01)

Patent

CA 1064812

PRESS SLIDE WITH EXTENDABLE AND RETRACTABLE TOOL SUPPORT Abstract of the Disclosure The slide of a multiple station metalworking press is provided with a plurality of punches mounted on the slide for movement therewith and including one punch which is ex- tendable and retractable relative to the slide in the direc- tion of slide movement. The extendable and retractable punch is hydraulically actuated during reciprocating movement of the slide and is so actuated by a fluid pumping arrangement re- sponsive to slide movement. As the slide moves downwardly toward the press bed the one punch is extended relative to the slide. Similarly, during movement of the slide away from the bed the one punch is retracted relative to the slide. Accordingly, the extendable and retractable punch has a stroke longer than that of the slide by the amount of extension of the punch relative to the slide.

258953

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