TABLE FOR PREVENTING DAMAGE OF CUTTING BLADE, CONTROLLER FOR NC MACHINE USING THE TABLE AND NC MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a table and a controller for realizing the safe operation and efficient machining of an NC machine, and to provide the NC machine.;SOLUTION: In this table for preventing the damage of a cutting blade at the time of machining using the NC machine, a main shaft load value original to the NC machine is written corresponding to the thickness of the cutting blade as a damage preventing threshold corresponding to the number of revolution at the time of working for every material of the cutting blade and every material of a work. Also, the controller using the table is provided with a measuring part for measuring the main shaft load value at the time of cutting, a data storage part, a data comparing part, and a data inputting part for inputting data to the data storage part. The main shaft load value inputted and set as a threshold to the data storage part is compared with the measured main shaft load value at the time of cutting by the data comparing part, and when the measure value exceeds the threshold, a signal for stopping the cutting work is immediately outputted. Also, this NC machine having the controller is provided with a temporary stopping mechanism for stopping this machine according to the stop signal outputted from the controller. The NC machine is provided with the controller.;COPYRIGHT: (C)2002,JPO