How do industrial robots work?

Industrial robot is a very common automation core machine in modern manufacturing industry, which is usually also called manipulator, industrial manipulator, manipulator, manipulator and so on. Now widely used industrial robots, its basic working principle is teaching operation:

Teaching is also called guidance, that is, the user guides the robot to operate step by step according to the actual task;

The robot will automatically remember the position, posture, motion parameters and process parameters of each action in the guidance process, and automatically generate a program to perform all operations continuously;

After the teaching is completed, just send a start instruction to the robot, and the robot will accurately complete all operations step by step according to the teaching action;

That's how industrial robots work. Now Haizhi Robot will talk about the composition, movement mode and working principle of industrial robots in detail.

Working principle of industrial robot (Figure 1)

Trajectory motion of manipulator;

The spatial curve of the end trajectory of the robot arm from the initial position and posture to the final position and posture is called the path.

The task of trajectory planning is to use functions to "interpolate" or "approximate" a given path and generate a series of "control set points" along the time axis to control the motion of the manipulator. At present, there are two commonly used trajectory planning methods: spatial joint interpolation and Cartesian spatial motion.

Working principle of industrial robot (Figure 2)

Composition of robot arm executive mechanism;

Wrist: the part connecting the hand and the arm, which is mainly used to adjust the direction of grasping objects.

Arm: it is an important part to support the caught object, arm and wrist. By cooperating with the driving device, various actions can be realized.

Hand: The parts that contact with the object to be operated include gripping hand and sucking hand. The gripping hand consists of fingers or claws and force transmission mechanisms, and there are many types of force transmission mechanisms, such as chute rod, connecting rod, diagonal rod, rack and pinion, lead screw nut spring type and gravity type.

Working principle of industrial robot (Figure 3)

Robot manipulator position detection equipment;

The position detection device is mainly composed of sensors, and the control system can realize the motion mode of the manipulator with various degrees of freedom through the information fed back by the sensors, thus forming a stable closed-loop control.