Numerical controller

A numerical controller for controlling a machine which performs punch pressing based on a program, the numerical controller comprising a processor configured to:

• accept settings of punch press parameters regarding punch pressing;
• calculate an axis control parameter in punch pressing based on the accepted punch press parameters;
• store the punch press parameters and the axis control parameter;
• read and analyze a command block from the program to generate movement command data and output the generated movement command data;
• perform interpolation processing based on the movement command data to generate interpolation data and output the generated interpolation data;
• calculate a linear acceleration and deceleration time constant and a bell-shaped acceleration and deceleration time constant for use in axis control based on the stored punch press parameters and the axis control parameter and a feed rate specified by the command block, perform post-interpolation acceleration or deceleration processing on the interpolation data based on the calculated linear acceleration and deceleration time constant and the bell-shaped acceleration and deceleration time constant, and output the processed interpolation data to which the post-interpolation acceleration or deceleration processing is applied;
• and
• control an axis of the machine based on the outputted processed interpolation data, the processed interpolation data to which the post-interpolation acceleration or deceleration processing is applied.