The motor is used to drive the joint of the robot. The request is to have the maximum power-to-mass ratio and torque inertia ratio, high starting torque, low inertia and wide and smooth speed control scale. In particular, as the end of the robot actuator (gripper) should be used in volume, the quality of the motor as small as possible, especially when the request for rapid response, the servo motor is necessary to have high reliability and greater short-term overload capacity. Detailed request:

Rapidity.

And the torque inertia ratio is large.

Control characteristics of the continuity and linearity, with the control signal changes, the motor speed can be changed in series, and sometimes need to speed and control signal is proportional to or proportional to.

Speed range.

Small size, small size, short axial dimensions.

Can withstand severe operating conditions, can be very frequent forward and reverse and acceleration and deceleration, and can be overloaded in a short time.

Now, because of high starting torque, high torque, low inertia AC and DC servo motors are widely used in industrial robots. Other motors, such as AC servo motors, stepper motors based on the use of different needs will also be used in industrial robots.