Machining Center states the basics of CNC milling programming
August 07, 2022
The machining center states the basic knowledge of CNC milling machine programming. Because the numerical control milling machine is equipped with different numerical control systems, the instructions used have certain differences in definition and function, but the basic functions and programming methods are the same. Welcome to the company's official website http://
Main functions of CNC milling machine 1) Point control function The position control of CNC milling machine is mainly used for hole machining of workpieces, such as center drilling positioning, drilling, reaming, boring, reaming and boring.
2) Continuous control function Mills the plane and surface of the workpiece by linear interpolation, circular interpolation or complex curve interpolation movement of the CNC milling machine.
3) Tool radius compensation function If you program directly according to the workpiece contour line, the actual contour line will have a larger tool radius value when machining the workpiece inner contour; when the workpiece outer contour is machined, the actual contour line has a smaller tool radius value. Cnc CNC machining Using the tool radius compensation method, the CNC system automatically calculates the tool center path so that the tool center deviates from the workpiece contour by a tool radius value, thereby machining the contour that meets the drawing requirements. By using the tool radius compensation function, the tool radius compensation amount can be changed, and the tool wear amount and machining error can be compensated for rough machining and finishing of the workpiece.
4) The tool length compensation function changes the compensation amount of the tool length, which can compensate the length deviation value after the tool change, and can also change the plane position of the cutting process and control the axial positioning accuracy of the tool.
5) Fixed cycle machining function The fixed cycle machining instruction can be used to simplify the machining program and reduce the amount of programming work.
6) Subprogram function If the workpiece shape is the same or similar, it is written as a subroutine and called by the main program, which simplifies the program structure. The function of the reference subroutine makes the machining program modular, and is divided into several modules according to the process of the machining process, and is respectively programmed into a subroutine, which is called by the main program to complete the machining of the workpiece. This modular program facilitates machining and optimization and optimizes the machining process.
7) Special function The contouring software and profiling device are arranged on the CNC milling machine. The sensor scans and collects the data. After the data processing, the NC program is automatically generated, and the contour processing of the workpiece is realized to realize the reverse processing project. In short, after the machining center is equipped with certain software and hardware, it can expand the use of CNC milling machines.
