Tool Machine Servo Control Simulation via Frequency Domain Analysis

The patent creates a virtual copy of the tool machine through a controlled body model that replicates the dynamic characteristics of the actual machine. This digital model allows performance testing and calibration to be conducted in a virtual environment, eliminating the need for time-consuming actual motion tests while maintaining testing accuracy through frequency domain analysis and transfer function calculations.

The patent replaces the mechanical actual motion testing system with a computational simulation system. By substituting physical movement and calibration with computer-based frequency domain analysis and model calculations, the system achieves the same measurement objectives without the time penalty of actual machine operation.

The patent performs preliminary identification of the controlled body model by collecting position, velocity, and torque information at multiple driving frequencies before actual production. This advance characterization of the machine's dynamic properties allows for reliable performance evaluation in subsequent operations without requiring repeated actual motion testing, thereby improving productivity.

The patent transforms the testing approach by changing from time-domain actual motion testing to frequency-domain analysis. By measuring system response at multiple driving frequencies and calculating transfer functions, the method reliably captures the effects of assembly errors and quality variations while significantly reducing testing time and improving productivity.