A common processing technology for CNC parts processing. CNC is an abbreviation, its full name is Computerized Numerical Control, and the Chinese translation is called Computerized Numerical Control. This technology is mainly aimed at the processing of mold parts or metal parts. The computer numerical control machine tool is an automatic machine tool equipped with a program control system. The control system can logically process the program with control codes or other symbolic instructions, and decode it, so as to make the machine tool move and process the parts. In addition, it is also known as a CNC machine tool, a CNC lathe, and a computer gong in Hong Kong and the Pearl River Delta of Guangdong.
Compared with ordinary machine tools, CNC machine tools have the following characteristics: high processing accuracy and stable processing quality; multi-coordinate linkage can be used to process parts with complex shapes; when the processed parts are changed, generally only the CNC program needs to be changed, which can save Production preparation time; the machine tool itself has high precision, high rigidity, and can select favorable processing dosages, and has high productivity (generally 3 to 5 times that of ordinary machine tools; the machine has a high degree of automation, which can reduce labor intensity; the quality requirements for operators are relatively high. High, higher technical requirements for maintenance personnel. CNC lathes are mainly used for large-scale machining of parts, and the processing methods include car outer circle, boring, car plane, etc.. Programs can be written, suitable for mass production and production process The degree of automation is high. Since the Massachusetts Institute of Technology developed the world’s first CNC machine tool in 1952, CNC machine tools have been widely used in the manufacturing industry, especially in the automotive, aerospace, and military industries. In terms of hardware and software, there is rapid development.
CNC machine tools generally consist of the following parts: Host, which is the main body of the CNC machine tool, including the machine body, column, spindle, feed mechanism and other mechanical components. It is a mechanical part used to complete various cutting processes. The numerical control device is the core of the numerical control machine tool, including hardware (printed circuit board, CRT display, key box, paper tape reader, etc.) and corresponding software, used to input digital part programs, and complete the storage of input information and data Transformation, interpolation calculation and realization of various control functions. The driving device, which is the driving part of the CNC machine tool actuator, includes a spindle drive unit, a feed unit, a spindle motor, and a feed motor. It realizes the spindle and feed drive through the electric or electro-hydraulic servo system under the control of the numerical control device. When several feeds are linked, the processing of positioning, straight line, plane curve and space curve can be completed. Auxiliary devices, some necessary supporting parts of index-controlled machine tools, are used to ensure the operation of CNC machine tools, such as cooling, chip removal, lubrication, lighting, monitoring, etc. It includes hydraulic and pneumatic devices, chip removal devices, exchange tables, CNC turntables and CNC indexing heads, as well as cutting tools and monitoring and testing devices. Programming and other ancillary equipment can be used to program and store parts outside the machine.
