In a robot there is a joint where ever you put a motor that will move the metal/plastic "bones" of the robot so you can have as many joints as you like.
Source:
My Brain
It depends on what kind of robot you are talking about.
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Study which deals with the construction and components of a robot. (It deals with the components such as wrist, arm, joints and body).
However many the designer wants it to have.
Stationary Robots. These are robot that are fixed in position. They tend to have robot arms that can move about. The diagram below shows a large-scale stationary robot arm. It has mobile joints called 'the wrist', 'the elbow', 'the waist' and 'the shoulder'.
sliding joints hinged joints fixed joints
elbow neck shoulder feet knee finger nose
The three main types of joints in the body are: ball-and-socket joints (hip and shoulder), hinge joints (knee and elbow), and pivot joints (neck).
The three joints that make up the elbow are the radiohumeral, proximal radioulnar and the ulnohumeral.
click on all three of the window to free the robot
The disease can involve only one joint or it may affect two or three joints. More than three affected joints is very rare.
There are three u-joints on an 88 suburban. These joints are located in the rear wheel drive of the vehicle.