Method of operating press machine and servo controller therefor

Details Method of operating press machine and servo controller therefor Method of operating press machine and servo controller therefor

1990-12-14

1992-01-07

Ip, Paul

Electricity: motive power systems

Positional servo systems

318567, 192131R, 72405, G06F 1546

Patent

active

050794892

ABSTRACT:
In a method of operating a press machine having a servomotor (20) and a servo controller therefor, the tool stays substantially still immediately after the completion of working a workpiece for a period of from 0.05 to 2 seconds and also the speed of the tool applying an impact to the workpiece for working is decelerated immediately before the tool strikes against the workpiece in order to reduce the noise generated when the impact is applied. The speed and positional locus of the ram (36) are set for each step using respective setting switches provided on a panel. The servomotor (20) is program-controlled according to the data input through the respective setting switches.

REFERENCES:
patent: 3602947 (1971-09-01), Morgan
patent: 3939314 (1976-02-01), Loeser
patent: 4063627 (1977-12-01), Wright
patent: 4280182 (1981-07-01), Mickowski
patent: 4348943 (1982-09-01), Bouyoucos
patent: 4743900 (1988-05-01), Rohrle
patent: 4929276 (1990-05-01), Chun et al.
patent: 4987765 (1991-01-01), Nishimura et al.

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