Servo motor refers to the engine that controls the operation of mechanical components in the servo system, which is a subsidy motor indirect speed change device. The servo motor can control the speed, the position accuracy is very accurate, and can convert the voltage signal into the torque and rotation speed to drive the control object.
The servo motor has the characteristics of stable operation, good controllability, fast response, high sensitivity, and strict nonlinearity index of mechanical characteristics and adjustment characteristics.
The robot has high requirements for the servo system, which must meet the conditions of fast response, high starting torque, large torque inertia ratio and wide speed regulation range. To adapt to the body of the robot to achieve small volume, light weight, acceleration and deceleration operation, and needs high reliability and stability. At present, industrial robots use more AC servo system.