In CNC machine tools, the servo control system is an indispensable part. It can receive analog commands and pulse commands, and set various parameters digitally, with good stability.The relationship between CNC machine tools and servo systems Servo system has been widely used in machine tool industry, so the relationship between servo system and machine tool is very close. The analog servo has a single purpose and only receives analog signals.
Its task is to convert the numerical 3-axis Precision CNC Machining control information into the feed motion of the machine tool, so as to realize the control of the machine tool. The maturity of the networked manufacturing model and the maturity of fieldbus technology will make network-based servo control possible. Quick response is an important indicator of the dynamic quality of the servo system, which reflects the tracking accuracy of the system.
AC servo occupies the leading position of machine tool feed servo. The spindle coordinate servo control adopts low-speed constant torque control, which can provide large torque. It implements various control modes and monitoring programs of servo motors of different specifications and powers in the software. The stability of the system includes positioning accuracy and contour processing accuracy.
At present, the advantages of the CNC machine tool servo control system are: high accuracy, the accuracy of the servo system refers to the degree of output energy reproduction input. When using, the user can set the code and related data to automatically enter the working state. The main purpose of machine tool feed servo is a permanent magnet synchronous AC servo system. It is a high-speed constant power control with sufficient output power. Stability means that the system can reach a new or return to its original equilibrium state after a short-term adjustment under a given input or external disturbance. Due to the high requirements of CNC machine tools for product processing, the application of servo control systems is particularly important.
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