Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1991-08-28
1993-02-23
Larson, Lowell A.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72420, 72422, B21D 504, B21D 4300
Patent
active
051879581
ABSTRACT:
The method is of the type in which the metal sheet (W) is manipulated by means of a movable gripping member (G) of a manipulator robot controlled by a programmer (PC) according to a program for positioning successive lines of working of the metal sheet in correspondence with a pair of linear tools (16, 18).
The programmer (PC) starts the working program by transporting the metal sheet to the position which corresponds with the first virtual or imaginary working line (B.sub.o). Sensors (S.sub.1, S.sub.2, S.sub.y) detect the position of the virtual working line and signal to the programmer whether and to what extent the position of this virtual working line differs from the correct position. This is equivalent to the entering in the programmer of a datum relating to the displacement of the engagement point (C.sub.o) of the gripping member from its theoretical engagement point (C) on the metal sheet.
The programmer moves the gripping member (G) on the basis of the error detected, repositions it relative to the metal sheet (W) at the theoretical engagement point (C).
REFERENCES:
patent: 5005394 (1991-04-01), Sartorio et al.
patent: 5058406 (1991-10-01), Sartorio et al.
Patent Abstracts of Japan, vol. 10, No. 295, International Search Report.
Prunotto Gianpaolo
Sartorio Franco
Amada Company Limited
Gurley Donald M.
Larson Lowell A.
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