System for controlling the advance of a rotary machine tool

Details System for controlling the advance of a rotary machine tool System for controlling the advance of a rotary machine tool

1976-04-15

1978-02-28

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51 99, B24B 4706

Patent

active

040757927

ABSTRACT:
A rotary machine tool, such as a grinding wheel, is mounted on a movable support serving to advance the tool toward a workpiece, such as a pipe to be severed thereby. The tool is driven by an electric motor whose operating current is measured by a sensor controlling the fluid supply to a hydraulic servomotor which is linked with the support. When the advance is too rapid, the resulting rise in load resistance increases the operating current and causes a throttling of the fluid pressure, the rate of advance being thus optimized in conformity with the shape and/or composition of the workpiece.

REFERENCES:
patent: 2961808 (1960-11-01), Dunigan
patent: 3524285 (1970-08-01), Rutt
patent: 3589077 (1971-06-01), Lenning
patent: 3656261 (1972-04-01), Everett
patent: 3859755 (1975-06-01), Schaller

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