Optimized continuous small line interpolation algorithm for high end CNC machine tools using a cross segment approach

Area of Science:

• Manufacturing Engineering
• Computer-Aided Manufacturing
• Precision Engineering

Background:

• High-end CNC machine tools require high precision and efficiency for complex machining.
• Challenges include monitoring multiple performance indicators (numerical control indicators) and managing intricate data.
• Optimizing interpolation strategies is crucial for improving machining quality and reducing computational load.

Purpose of the Study:

• To propose a continuous small-line interpolation algorithm based on cross-segment optimization.
• To minimize numerical control complexity and processing time for machining trajectories and spline curves.
• To enhance interpolation accuracy and efficiency in high-end CNC machining.

Main Methods:

• Developed a continuous small-line interpolation algorithm utilizing cross-segment optimization.
• Employed a 1/2 search method and leveraged front and rear segment data for interpolation.
• Implemented a constant speed within-segment strategy with cross-section transfer for path optimization.

Main Results:

• Achieved interpolation accuracy exceeding 95% and met bow height error requirements.
• Reduced computation time by 10-15% compared to existing methods.
• Demonstrated significant enhancement in numerical control performance and optimized milling cutter path.

Conclusions:

• The proposed algorithm improves CNC precision, processing speed, and machining efficiency.
• The method effectively reduces workpiece wear under complex constraints.
• The algorithm shows broad applicability for similar CNC machine tools.