Machining simulation device and machining simulation method

A machining simulation device, comprising:

• a first memory configured to store a program;
• and
• a processor configured to execute the program and control the machining simulation device to:
• acquire control information, including motor information of the machine tool and a control parameter of a motor control system of the machine tool, from a second memory of a controller of the machine tool;
• calculate a motor characteristic, based on the motor information;
• calculate a control characteristic of the motor control system, based on the control parameter;
• display a user interface on a display screen, the user interface corresponding to displaying the motor characteristic and the control characteristic and receiving a predetermined requirement from a user;
• modify the motor characteristic and the control characteristic in accordance with the predetermined requirement;
• calculate a transfer function representing the transfer characteristic of the machine tool based on the modified motor characteristic and control characteristic;
• and
• simulate behavior of the machine tool using the calculated transfer function;
• wherein the transfer function calculated includes the modified motor characteristic and control characteristic,
• wherein the predetermined requirement includes at least one of a response frequency of position control, a response frequency of velocity control, a natural frequency of the machine tool, or a resonance frequency between a driving unit and a driven unit of the machine tool.