I. What is a robot joint?
Robot joints are mechanisms that enable relative movement between the various components of a robot. Among joints, those that are driven independently are called active joints, and those that are driven indirectly are called driven joints. Robot joint modules typically employ ultrasonic motors, servo motors, harmonic reducers, VR reducers, planetary gearbox motors, etc.
II. What type of motor is used for robot joints?
Robot joint motors can be broadly categorized into the following types:
1. AC servo motors: including synchronous AC servo motors and reactive stepper motors, etc.
2. Miniature electric motors: including ultrasonic motors
3. DC servo motors: including low inertia permanent magnet DC servo motors, printed winding DC servo motors, high inertia permanent magnet DC servo motors, and hollow cup armature DC servo motors.
4. Stepper motor: including permanent magnet induction stepper motor.
Robotic joints are one of the most common forms of industrial robots in today's industrial field, suitable for automated mechanical operations in many industrial sectors, such as automated assembly, painting, material handling, and welding. They can be classified in different ways according to their structure.
