Machine tool numerical controller with a trouble stop function

Details Machine tool numerical controller with a trouble stop function Machine tool numerical controller with a trouble stop function

1986-02-12

1988-03-22

Smith, Jerry

Boots, shoes, and leggings

364183, 364185, 340680, 318565, G05B 902

Patent

active

047333430

ABSTRACT:
A numerical controller for a grinding machine composed of a central processing unit (CPU), which is programmed to read out a numerical control program block by block from a memory device and to control a pulse generation circuit to generate pulses of such number and frequency as determined by the read-out data block, for supply to feed servomechanisms of the grinding machine. The CPU is also programmed to execute a trouble identification routine and a trouble processing routine at predetermined time intervals. The trouble identification routine enables the CPU to identify the kinds of troubles occurring in the grinding machine and to assort the troubles into a number of trouble modes. The trouble processing routine enables the CPU to operate so that a movable member of the grinding machine is immediately stopped or, for preventing the actual position of the movable member from differing from a present position thereof stored in the memory device, slowly stopped depending upon the kind of a trouble presently occurring in the grinding machine.

REFERENCES:
patent: 3834615 (1974-09-01), Watanabe et al.
patent: 3836834 (1974-09-01), Abbatiello et al.
patent: 4263647 (1981-04-01), Merrell et al.
patent: 4480303 (1984-11-01), Takada et al.
patent: 4516211 (1985-05-01), Nozawa et al.

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