Basic knowledge of industrial robot arm

1. Degree of freedom：It refer to the number of coordinate axes that the robot has independent motion. The degree of freedom of the robot refers to the number of independent motion parameters needed to determine the position and posture of the robot hand in space.The degree of freedom of the robot is generally equal to the number of joints. Common robots have 5-6 degree of freedom. Some robots have external shafts.

2. Joints: A mechanism that allows relative motion between parts of a robot arm.  

3. Scope of work: All areas of space that can be reached by an industrial robot arm or hand mounting point. Its shape depends on the degree of freedom of the robot and the type and configuration of each motion joint.

4. Speed: The distance that the center of the mechanical interface or the center point of the tool moves or the Angle of rotation in unit time when the robot moves with constant speed under the condition of loading.