NC laser device
AssigneeFanuc Corporation
InventorsKazuhiro Suzuki, Nobuaki Iehisa
Life of this patent
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Abstract
There is provided an NC laser device including a combination of a numerical control device and a laser oscillator. A laser output command is sent to an output control circuit at the time of starting and the laser output is monitored by a power sensor to obtain a ratio of the command value to a monitored value. This ratio is stored in a non-volatile memory, the difference between this ratio and the ratio obtained at a previous start is obtained, and if the difference is higher than a predetermined set value, indicative that an abnormality has occurred during the non-operative period of the device, an alarm is displayed on a display screen.
Claims3
An NC laser device having a combination of a numerical control device and a laser oscillator, and comprising:
- command means for commanding a specific laser output at a time of starting of the laser oscillator;
- monitoring means for monitoring the laser output;
- ratio calculating means for obtaining a ratio of a command value output from said command means to a monitored value output from said monitoring means;
- non-volatile memory means for storing said ratio;
- and
- abnormality detecting means for obtaining a difference between said ratio and the ratio obtained at a previous start of the laser oscillator and for producing an alarm when said difference is higher than a predetermined set value.
An NC laser device having a combination of a numerical control device and a laser oscillator, and comprising:
- command means for commanding a specific laser output at a time of starting of the device;
- monitoring means for monitoring the laser output;
- ratio calculating means for obtaining a ratio of a command value output from said command means to a monitored value output from said monitoring means;
- non-volatile memory means for storing said ratio;
- and
- abnormality detecting means for obtaining a difference between said ratio and the ratio obtained at a previous start.
Dependencies are inferred from the claim text.