What is the working principle of the robot? How do you control the movement of a robot?

A manipulator is a mechanical arm, usually programmable, that has a similar function to a human arm; the arm can be the sum of mechanisms or part of a more complex robot. The connection of such a manipulator is via joints that allow rotational motion (such as in an articulated robot) or translational (linear) displacement. The working principle of articulated robots is actually very similar to the movement characteristics of the human arm, the human hand is through the combination of joints and bones and muscle movement, only to realize the brain command and conditioned reflexes and other behaviors; and articulated robots are based on this characteristic of human beings, and then through the human wisdom of the "crystallization" of the success of the development of the robot.

The working principle of linear robot or truss robot

The working principle of robot is illustrated:

Mechanical arm is a machine that imitates the movement of the human arm, and it can be suspended on a truss, which is called a truss robot. It consists of multiple beams and manipulator assemblies, one end of the manipulator arm is suspended from a transverse module, and the other end has a wrist and fingers, the wrist can rotate in multiple degrees of freedom, and the fingers can load and pinch objects, and both of them can be controlled by human beings, either directly or remotely. However, the truss manipulator is just one of a variety of different robotic arms.

The manipulator is a servo motor-driven three-axis truss manipulator, a simple explanation of the meaning of three-axis, in fact, can be simply understood as this manipulator is composed of three servo motors. There are two servo motors that can be clearly seen in the picture, and there is another servo motor that controls the arm part of the robot that moves back and forth, at the back of the whole robot, so the picture fails to see.

Then we'll explain the role of the remaining two servo motors. This servo motor on top of the transverse arm is to control the overall transverse movement of the longitudinal and transverse robotic arms on the transverse arm, which can be accurately positioned at any position on the transverse arm. The servo motor on the longitudinal arm is naturally controlling the up and down movement action of the longitudinal arm, but also the combination of the key robotic arm that grips the material and the servo motor that needs to be the most accurate.

Mechanical arms can be as simple as tweezers or as complex as prosthetics. In other words, if a mechanism can grab an object, hold it, and pass it around like an arm, then it can be categorized as a robotic arm. Recent advances have led to future improvements in the medical field, including prosthetics and robotic arms. When mechanical engineers build complex robotic arms, the goal is to allow the arm to perform tasks that ordinary humans cannot.