1.The concept of the servo system of the steel bar cutting machine
The servo system of the steel bar cutting machine refers to an automatic control system that takes the position and speed of the moving parts of the hoop bending machine as the control quantity, also known as the follow-up system. In the steel bar cutting machine, the servo system is the intermediate link that connects the CNC system and the rod cutting machine body, and is the “limb” of the CNC machine tool. Because the performance of the servo system determines the performance of the rod cutting machine, the servo system is required to have high precision, rapidity and good stability.
2.The working principle of the servo system of the steel bar cutting machine
Servo system is a kind of feedback control system. It takes command pulse as input value and compares it with output adjusted value. The deviation value produced after comparison is used to automatically adjust the system to eliminate the deviation and make the adjusted value track. Desired point. Therefore, the movement of the servo system comes from the deviation signal, it must have a negative feedback loop, and it is always in a transitional process state. The force is amplified during the movement. The servo system must have an energy source that continuously inputs energy, and the external load can be regarded as the disturbance input of the system.
