The numerical control lathe processing in Shenzhen Machinery Processing Plant refers to the process of machining parts on a numerical control machine tool. A numerical control machine tool is a machine tool controlled by a computer. The computer used to control the machine tool, whether it is a special computer or a general-purpose computer, is collectively called a numerical control system. The movement and auxiliary actions of the numerical control machine tool are controlled by the instructions issued by the numerical control system.

The instructions of the numerical control system are compiled by the programmer of the Shenzhen Machinery Processing Plant according to the material of the workpiece, the processing requirements, the characteristics of the machine tool and the command format (numerical control language or symbols) specified by the system. The numerical control system sends running or breaking information to the servo device and other functional components according to the program instructions to control the various movements of the machine tool. When the machining program of the parts is completed, the machine tool will automatically stop. Any numerical control machine tool cannot work if there is no input program instruction in its numerical control system.

The controlled actions of a machine tool for machining generally include the starting and stopping of the machine tool; the starting and stopping of the spindle, the change of the rotation direction and the speed; the direction, speed and mode of the feed movement; the selection, length and radius of the tool; the replacement of the tool, the opening and closing of the coolant, etc.

The numerical control machine selects the aircraft parts with complex profiles as the processing objects at the beginning to solve the key that is difficult to solve by ordinary processing methods. The biggest feature of numerical control processing is to control the machine tool with perforated tape (or tape) for automatic processing.

Due to the different characteristics of aircraft, rockets and engine parts, aircraft and rocket components are large in size and complex in profile, while engine components are small in size and high in precision.

Therefore, the numerical control machine tools selected by the aircraft, rocket manufacturing department and engine manufacturing department of Shenzhen Machinery Processing Plant are different. In aircraft and rocket manufacturing, large-scale numerical control milling machines with continuous control are mainly used, while in engine manufacturing, both continuous control numerical control machine tools and point control numerical control machine tools (such as numerical control drilling machines, numerical control boring machines, machining centers, etc.) are used.