Robot Arm Joints and Motion
Combining joint rotations to move the hand
0:52 · 720p · With AI narration and captions. This sample was made with the same system as this service.
Narration (full text)
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How a Robot Arm Moves
Let's see how a robot arm turns its joints to move its hand.
Six Joints
Most industrial robots have six joints. These are called six axes.
Motors and Encoders
Each joint is turned by a motor, and a sensor called an encoder measures its angle.
Combining Rotations
Combining the joint rotations determines the position and direction of the hand at the tip.
Computing Angles
To bring the hand to its target, the controller calculates the joint angles. This is called inverse kinematics.
Following the Path
Then, all the joints move together, carrying the hand along the planned path.
Many Factory Jobs
From welding and painting to assembly and picking, they are used in many factories.
Moving by Combining Joints
A robot arm moves its hand precisely by calculating the angles of its joints.
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