Device for use in a former for automatically replacing punches

Details Device for use in a former for automatically replacing punches Device for use in a former for automatically replacing punches

1991-06-25

1992-07-14

Yost, Frank T.

Tool changing

Including machine tool or component

Reciprocating tool machine tool

83698, B23Q 3155

Patent

active

051291398

ABSTRACT:
A device for use in a multi-stage former automatically replaces a tool used for successive press work. When the tool is worn or damaged, or when the tool has been used for its estimated life, this condition is detected, whereupon the old tool is automatically removed and replaced by a new one. The device is used in an apparatus wherein a punch is forced against a die by a ram for plastically working a metal by press work, and the device handles the punch mounted on the ram. A punch case or punch holder is utilized to the punch replacing device being assembled therewith.

REFERENCES:
patent: 3727301 (1973-04-01), Tsuzuki et al.
patent: 4304041 (1981-12-01), Kline et al.
patent: 4555966 (1985-12-01), Klingel
patent: 4569267 (1986-02-01), Klingel
patent: 4860428 (1989-08-01), Brolund et al.
patent: 5012712 (1991-05-01), Nordquist
patent: 5027683 (1991-07-01), Kakimoto

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