CNC(Computer Numerical Control): Computer numerical control technology controls the machining actions of machine tools through pre programmed instructions.
Numerical Control Machine Tool: Integrating multidisciplinary technologies such as mechanics, electronics, computers, hydraulics, and pneumatics to achieve high-precision and high-efficiency automated machining.
2. Core components
Control system: Receive program instructions and convert them into machine actions (such as servo motor control).
Mechanical structure: including bed, spindle, guide rail, worktable, etc., to ensure stability and accuracy.
Drive system: servo motor, stepper motor, etc., to achieve precise motion.
Sensors and feedback systems: Real time monitoring of parameters such as position and speed to ensure machining accuracy.
3. Classification and Function
According to the processing method:
CNC lathe: used for rotary machining of shaft and disc parts.
CNC Milling machine: Processing of flat surfaces, curved surfaces, and hole systems.
Machining center: integrates Milling, boring, drilling, tapping and other functions, with automatic tool changing device.
CNC Grinding machine: high-precision surface grinding.
CNC electrical discharge machining machine: non-contact machining, suitable for complex shapes.
By exercise mode:
Point control: only controls the starting and ending positions (such as drilling machines).
Linear/contour control: continuous trajectory control (such as Milling machines, lathes).
4. Technical advantages
High precision: The repeated positioning accuracy can reach micrometer level.
High efficiency: Automated processing reduces manual intervention.
Flexibility: Quickly adjust processing tasks through programs to adapt to multi variety production.
Complex shape processing: such as 3D surfaces, molds, etc.
5. Application Fields
Manufacturing industry: automobiles, aerospace, molds, medical devices, etc.
Precision machining: optical components, semiconductor equipment, etc.
Customized production: processing of small batches and multiple varieties of parts.
6. Development Trends
Intelligence: Integrating AI technology to achieve adaptive machining and fault prediction.
High speed: The spindle speed and feed rate are increased to shorten the machining cycle.
Composite: Multi axis linkage and multi process integration to improve processing efficiency.
Greening: energy-saving design, environmentally friendly materials, and reduced processing waste.
7. Programming and Operation
Programming language: G-code (ISO standard) or vendor specific language.
Operation interface: Human machine interaction interface (HMI), supporting manual input or CAD/CAM software import.
Safety regulations: Operators must receive professional training and comply with safety operating procedures.
8. Maintenance and upkeep
Regular inspection: lubrication system, electrical components, mechanical parts.
Preventive maintenance: Replace vulnerable parts to avoid sudden failures.
Data backup: Regularly backup control system programs to prevent data loss.
9. Typical application cases
Automotive industry: Batch processing of engine cylinder blocks and crankshafts.
Aerospace: High precision machining of complex curved parts such as turbine blades.
Medical devices: precision manufacturing of artificial joints and implants.
10. Future prospects
Industry 4.0 integration: Combining with the Internet of Things, big data, and cloud computing to achieve remote monitoring and intelligent scheduling.
New material processing: Suitable for the processing needs of difficult to process materials such as titanium alloys and composite materials.
Personalized customization: Meet consumers' needs for personalized and customized products.