Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1975-11-24
1977-02-08
Mehr, Milton S.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72 8, 72 21, 72181, 72240, B21D 508
Patent
active
040066177
ABSTRACT:
A plurality of forming stations, each individually numerically controlled to sequentially roll form a blank into a tapered structural member, is disclosed. Each forming station includes upper and lower assemblies of forming rolls mounted on a pair of adjacent shafts so as to generally define an orifice through which the blank passes as it is roll formed. One of the shafts is continuously position adjustable, as are selected forming rolls of the forming roll assemblies. Thus, both the size and shape of the orifice are continuously adjustable. Position sensors continuously sense the positions of the position controllable shaft and forming rolls of each station and generate feedback signals related thereto. The feedback signals are continuously compared with numerical control signals received by a controller. The results of the comparisons produce error signals that are used to continuously control the position of the position controllable shafts and forming rolls.
REFERENCES:
patent: 1078240 (1913-11-01), Barbour
patent: 3081653 (1963-03-01), Kincaid
patent: 3566638 (1971-03-01), Herbst
patent: 3903723 (1975-09-01), Colbath
Mehr Milton S.
The Boeing Company
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