The Main Function Of CNC Milling Machine

1. Point control function: The point control of CNC milling machine is mainly used for hole processing of workpieces, such as center drilling positioning, drilling, reaming, countersinking, reaming and boring and other hole processing operations.

2. Continuous control function: Through the linear interpolation, circular interpolation or complex curve interpolation motion of the CNC milling machine, the plane and curved surfaces of the workpiece are milled.

3. Tool radius compensation function: If you program directly according to the contour of the workpiece, when machining the inner contour of the workpiece, the actual contour will be larger by a tool radius value; when machining the outer contour of the workpiece, the actual contour will be smaller by a tool radius value. . Using the method of tool radius compensation, the CNC system automatically calculates the tool center trajectory, so that the tool center deviates from the workpiece contour by a tool radius value, thereby machining a contour that meets the requirements of the drawing. Using the tool radius compensation function, changing the tool radius compensation amount can also compensate the tool wear amount and machining error, and realize the rough machining and finishing machining of the workpiece.

4. Tool length compensation function: changing the compensation amount of the tool length can compensate the length deviation value after the tool is changed, and can also change the plane position of the cutting process to control the axial positioning accuracy of the tool.

5. Canned cycle processing function: The application of canned cycle processing instructions can simplify the processing program and reduce the programming workload.

6. Subprogram function: If the workpiece has the same or similar shape, write it into a subprogram and call it from the main program, which simplifies the program structure. The function of citing subroutines makes the processing program modular, and is divided into several modules according to the process of the processing process, which are respectively written into subroutines and called by the main program to complete the processing of the workpiece. This modular program is convenient for processing and debugging, and optimizes the processing technology.