Automatic control system for machine tools

Details Automatic control system for machine tools Automatic control system for machine tools

1978-05-09

1984-10-23

Dobeck, B.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

318571, 318 39, 318608, 5116592, H02P 768, B23Q 510, B24B 5100

Patent

active

044780095

ABSTRACT:
An automatic control system for machine tools having rotary tools is disclosed in which the tool drive motor load current, which is proportional to the mechanical load on said drive motor, is maintained at a selectable desired level by controlling the duration and phase of the power supplied to an alternating current feed motor which controls the distance between the rotary tool and the workpiece. A sensed load signal which is greater than the preselected level will cause the feed motor to move the tool away from the workpiece, while a load signal less than that desired will cause the feed motor to move the tool toward the workpiece.

REFERENCES:
patent: 3372322 (1968-03-01), Lockwood et al.
patent: 3626262 (1971-12-01), Kelling
patent: 3699720 (1972-10-01), Lenning
patent: 3962619 (1976-06-01), Nishimura
patent: 4013932 (1977-03-01), Aggarwal
patent: 4031437 (1977-06-01), Dempsey

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