NUMERICAL CONTROLLER

摘要

PURPOSE: To provide a numerical controller capable of efficiently suppressing vibration which is produced when a feed drive system of a machine tool, etc., is accelerated and decelerated. CONSTITUTION: The numerical controller 10 to accelerate and decelerate the feed drive system 50 is provided with an acceleration setting part 20 to set level and timing of the acceleration to be given to the feed drive system 50 based on the prescribed target conditions and a control main body part 30 to give the acceleration set by the acceleration setting part 20 to the feed drive system 50. The acceleration setting part 20 is constituted so as to set first acceleration A1 to be given at timing of start of the acceleration and second acceleration A2 (in the same direction as the first acceleration A1) to be superimposedly given to the first acceleration A1 at timing and with the level to damp the vibration V1 of the feed drive system 50 to be produced in accordance with start of impartment of the first acceleration A1.