Computer Numerical Control Machining is a digital manufacturing technology that precisely controls the movement of machine tools through computer programs.
1、 The essence of technology
By using pre programmed digital instructions (G-code/M-code), the machine tool is driven to perform high-precision cutting on materials such as metals and plastics, achieving an automated production process of "design → code → physical forming".
2、 Core technology module
1. Programming system
CAD/CAM software: convert 3D models into machine recognizable machining instructions;
AI optimization: The new generation of software can automatically optimize tool paths, improving machining efficiency by 30%.
2. Machine tool structure
High rigidity bed body: Mineral casting composite material suppresses vibration, and the coefficient of thermal expansion approaches zero;
Nano level drive: The three-axis linear motor achieves a positioning accuracy of 0.002mm and a response speed increase of 5 times.
3. Process innovation
Ultrasonic heat shrink tool holder: Ultrasonic vibration+heat shrink clamping technology, controlling the machining accuracy of ultra micro holes (0.1mm) within ± 0.005mm;
Superstring precision machining: With the use of large circular arc cutting tools and special cutting paths, the precision machining time has been reduced from 60 minutes to 4 minutes.
3、 Processing flow
Design: CAD modeling, process planning, avoiding difficult to machine structures, optimizing cutting parameters;
Programming: CAM generates tool paths, collision detection, and multi axis linkage trajectory planning;
Processing: The machine tool automatically performs cutting, monitors cutting force in real-time, and adaptively adjusts parameters;
Quality inspection: CMM testing, micrometer level size verification, surface roughness analysis.
4、 Frontier Trends
Digital Twin: Virtual simulation of the entire machining process, predicting tool wear and reducing trial and error costs by 40%;
Composite processing: The turning milling composite center achieves "one clamping to complete multiple processes";
Nano level: The processing accuracy of minimally invasive surgical instruments has moved towards ± 0.002 inches.
