According to the classification of process use, the most commonly used CNC machine tools are divided into CNC drilling machines, CNC lathes, CNC milling machines, CNC boring machines, CNC grinding machines, CNC gear processing machines, CNC engraving machines and other metal cutting machines. Although these machine tools have great differences in processing technology and specific control methods, they are applicable to the processing of single piece, small batch and multi variety parts, with good consistency of processing size, high productivity and automatic procedures. In addition to numerical control machine tools for metal cutting, numerical control technology is also widely used in non-metal cutting machine tools such as punch, press, bending machine, bending machine, wire cutting machine, welding machine, flame cutting machine, plasma cutting machine, laser cutting machine and high-pressure water cutting machine. In recent years, numerical control technology is also widely used in non processing equipment, among which the most common are automatic assembly machine, multi coordinate measuring machine, automatic plotter, numerical control printing and dyeing machine, rapid prototyping machine and industrial robot.
