Control apparatus for a grinding machine

Details Control apparatus for a grinding machine Control apparatus for a grinding machine

1978-10-13

1980-09-02

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

5116587, 125 11R, 125 11CD, B24B 5300

Patent

active

042199727

ABSTRACT:
A grinding machine control apparatus comprises revolution speed changing means effective to selectively change a high speed in the grinding or a low speed in the dressing operations, a change signal generating means to generate a dressing initiation signal after the lapse of a predetermined time after a grinding wheel spindly driving motor is turned off, and control means to change said revolution speed changing means in response to a change signal from said change signal generating means and operative to drive a driving motor of a grinding wheel at a predetermined low speed of revolution. In a high-speed grinding machine, the speed of revolution of a grinding wheel spindle is automatically changed to reduce from a high revolution speed in the grinding operation to a low speed in the dressing operation without stopping a grinding wheel spindle so that a dressing operation can be carried out with good efficiency and a grinding wheel profile accuracy is substantially improved.

REFERENCES:
patent: 3113563 (1963-12-01), Hughes
patent: 3760539 (1973-09-01), Robillard
patent: 4051830 (1977-10-01), Gruber

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