The Development Trend of Modern CNC Machine Tools.

(1) High precision.

To improve the processing accuracy of CNC machine tools, it can be achieved by reducing the error of CNC systems and adopting machine error compensation technology. In reducing the control error of CNC system, it is usually taken to improve the resolution of numerical control system, 髙 position detection accuracy, feed-forward control and nonlinear control in the position-jia servo system, and other methods, in addition to the use of gap compensation, screw pitch margin compensation and tool compensation technology, but also to compensate for the thermal deformation of equipment. In addition, the quality of servo system is directly related to the processing accuracy of CNC machine tools. Modern CNC machine tools use THE AC number word servo system, and the use of new control theory can realize the 髙 speed response servo system.

(2) High speed.

In order to realize the high-speed of numerical control equipment, it is first required that the NUMERICAL control system can carry out high-speed processing procedures consisting of small segments in order to calculate the amount of movement of servo motors. At the same time, the servo motor is required to react at high speed, using 32-bit and 64-bit microprocessors, which is an effective means to improve the high-speed processing power of numerical control systems. The key to achieving high-speed numerical control equipment is to increase cutting speed, feed speed and reduce auxiliary time.

(3) The use of flexible automation equipment or systems is an effective means to improve processing accuracy and efficiency, shorten production cycle, adapt to market changes and improve competitiveness. The CNC machine tool, while 髙 the unit flexibility, is developing towards the unit flexibility and system flexibility.

(4) High automation High automation refers to the automatic completion of the prescribed tasks by minimizing human involvement in all processes, which includes the automation of material flow and information flow.

5 Intelligent adaptive control technology adaptive control can automatically adjust the operating parameters according to the change of cutting conditions, so that the machining system can maintain the best working condition, so as to obtain high machining accuracy and low surface roughness.