Intensification method and apparatus for hemming machine

Details Intensification method and apparatus for hemming machine Intensification method and apparatus for hemming machine

1998-02-06

1999-08-03

Scharbel, David A.

Metal working

Means to assemble or disassemble

Overedge assembling means

29251, 100271, B23P 1100

Patent

active

059308800

ABSTRACT:
A closure panel hemming apparatus includes a lower support supporting a lower hemming die and an upper support spaced from and mounted above the lower support supporting an upper hemming die. The upper and lower supports are relatively vertically moveable for bringing the dies toward and away from one another. A plurality of actuators of the ball screw or rack and pinion type is driveably connected to draw together the upper and lower supports, bringing the dies together for edge hemming preformed metal panels nested between the dies. Force application means including one or more clamps are actuated to connect the upper and lower supports upon their movement of the dies to a hemming position. Force is applied to the clamp(s), through separate means or by intensification means driven by the actuators, to draw the dies tightly together for completing the hemming operation. Use of the additional force application means for applying hemming force to the dies allows smaller actuators to be used for the macro movements of the dies.

REFERENCES:
patent: 3370339 (1968-02-01), Soulet
patent: 4201130 (1980-05-01), Stahl
patent: 4213365 (1980-07-01), McCabe
patent: 5272903 (1993-12-01), Evans
patent: 5495742 (1996-03-01), Dorsett
patent: 5596923 (1997-01-01), Enami

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