Method and apparatus for controlling electrode position in an el

Details Method and apparatus for controlling electrode position in an el Method and apparatus for controlling electrode position in an el

1982-06-23

1987-06-23

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, 318569, 318603, B23H 732, G05B 1929

Patent

active

046754903

ABSTRACT:
A method and apparatus for controlling an electric discharge machine wherein a motor for establishing relative movement between an energized electrode and a workpiece is driven in accordance to with NC command data. The method includes the steps of converting commanded speed information into a speed command value to control the speed of the motor, counting, by using a counter, pulses generated by a sensor each time the motor rotates by a predetermined amount, reading the value of the count in the counter periodically, adding the read values cumulatively to determine the present position of the electrode, and sending a command to the counter each time its counted value is read, to cancel the counted value.

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European Search Report Place: The Hague Examiner; Dailloux.

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