Composition Principle of Servo System of Steel Bar Cutting Machine
1. Servo system concept of steel bar cutting machine
The servo system of steel bar cutting machine is an automatic control system which controls the position and speed of the moving parts of the bending machine. In bar cutting machine, servo system is the intermediate link between nc system and steel cutting machine, and is the "rim" of NC machine tool. Because the performance of servo system determines the performance of steel bar cutting machine, so the servo system is required to have high precision, high speed and stability. The research and development of high performance servo system is one of the key technologies of the latest steel bar cutting machine. In practical application, the servo system of steel cutting machine is more prone to failure. Therefore, it is necessary to fully understand the importance of servo system, learn how to diagnose and maintain servo system.
2. Servo system configuration of steel bar cutting machine
The servo system of steel bar cutting machine is usually composed of drive controller, drive parts, machine transmission parts, actuator and detection feedback link. The drive control unit and the drive components comprise the servo drive system, the mechanical transmission components and the actuator comprise the mechanical transmission system, and the detection components and feedback circuit comprise the detection device, also known as the detection system.
3. Working principle of steel bar cutting machine servo system
The servo system of steel bar cutter is a feedback control system. The command pulse is used as the input value and compared with the output adjustment value. The resulting deviation is used by the automatic adjustment system to eliminate the deviation and track the adjustment value. Therefore, the motion of the servo system comes from the deviation signal and requires a negative feedback loop, always in a state of transient process. The force is amplified in motion. The servo system needs a constant input of energy, and the external load can be regarded as the system disturbance input.
4. The function of the steel bar cutting machine servo system
In the steel bar cutting machine, the servo system is the link between the numerical control device and the hoop bending machine. Its function is to convert and amplify the command pulse of the numerical control interpolator or the command pulse generated by the computer interpolation software. It converts the moving parts of the steel bar cutting machine into mechanical motion, ensuring fast and accurate movement. Technical indicators such as the accuracy and speed of the steel bar cutting machine often depend on the servo system.
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