What is the process of CNC machining?

The CNC machining process is a method of automatically controlling machine tools to process parts through a computer control system. Its core is to digitize machining instructions, which are then parsed and executed by the CNC system. ‌

Overview of machining process: CNC machining begins with process analysis of part drawings, which requires determining machining content, selecting positioning benchmarks, and unifying geometric dimensions to reduce tool changes; Subsequently, mathematical processing (such as calculating node coordinates) and programming are carried out. Programmers write G code and other instructions according to the requirements of the workpiece to control machine actions such as spindle start stop, feed motion, tool replacement, and coolant switch. ‌

After the program is completed, it needs to be verified and modified, and then the first piece trial machining is carried out. Enter the program on the machine tool, confirm that the tool path and parameters are correct, and then proceed with the formal machining. After the machining is completed, the machine tool will automatically stop. ‌

Core control and execution: The numerical control system acts as the "brain" to receive and parse program instructions, and sends signals to the executing mechanism; The executing mechanism includes a spindle box (which drives the workpiece to rotate), a feed system (which controls the tool to move in the X-axis and Z-axis directions to achieve cutting), and a tool turret (which automatically changes the tool); At the same time, auxiliary systems such as cooling devices (cooling and chip removal) and safety shields (preventing iron chips from splashing) ensure stable and safe processing. ‌

Key features and precautions: CNC machining emphasizes process concentration and standardized standards to reduce clamping frequency and improve efficiency; When programming, it is necessary to ensure that the geometric parameters are clear to avoid errors caused by drawing problems; During operation, safety devices such as emergency stop buttons must be used in a standardized manner. ‌