Automatic workholder avoidance system for a press

Details Automatic workholder avoidance system for a press Automatic workholder avoidance system for a press

1992-03-09

1993-04-06

Yost, Frank T.

Cutting

Processes

83 74, 83368, 3644742, B26D 520

Patent

active

051993384

ABSTRACT:
A collision avoidance system for program controlled punch presses which position the ram at a low "hover" height during work piece movement in which a switch is located to be tripped by inward movement of the workpiece gripper carriage to a degree in which a punch-gripper collision is possible, with the ram elevated to a safe height whenever the switch has been tripped.

REFERENCES:
patent: 3603187 (1971-09-01), Bredow
patent: 4471676 (1984-09-01), Mason
patent: 4558616 (1985-12-01), Sakamoto
patent: 4589317 (1986-05-01), Kawano
patent: 4651601 (1987-03-01), Sasaki

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