Explain how will control the sensitive movements of the robotic arm?

Is the robotic arm controlled by a program? How?

Answer: I am very knowledgeable, I finally saw a question about robots on the headlines today . Yes, this seems to be a topic that is popular, but it has a lot of scientific technological content will attract a lot of attention. For this kind of question answer, I will talk about it here based on what I know. The
robot's mechanical arm is just a simple branch of the industrial robot device. The robot's manipulator (mechanical body) consists of a hand, wrist, arm, metal column, auxiliary walking mechanism; it includes up, down, left, right rotation movements.

The "arm" is only an important gripping component that supports the grasped object, the hand the wrist, driving the fingers to grasp the object move it to the designated location according to the predetermined requirements. The arm of an industrial manipulator is usually composed of components that drive the movement of the arm (such as hydraulic cylinders, cylinders, gear rack mechanisms, connecting rod mechanisms, screw mechanisms cam mechanisms, etc.) drive sources (such as hydraulic pressure, air pressure electric motors, etc.) to achieve various movements of the arm. In order to prevent rotation around its axis, a guide device is required when the arm is telescopic lifting to ensure that the fingers move in the correct direction. In addition, the guide device can also bear the bending moment torsional moment of the arm, as well as the inertia moment generated at the moment of starting braking when the arm rotates, so that the force state of the moving parts is simple.

The purpose of arm movement is to move the hand to any point within the range of spatial movement. If the posture (orientation) of the hand is to be changed, the freedom of the wrist is used to achieve it. Therefore, generally speaking, the arm has three degrees of freedom to meet the basic requirements, that is, the arm situation analysis. It bears the static dynamic loads of the wrist, hand workpiece during work, it has more self-movement complex forces. Therefore, the structure, working range, flexibility, grasping size positioning accuracy of the arm directly affect the working performance of the manipulator.

The various movements of the arm are usually realized by driving mechanisms (such as hydraulic cylinders pneumatic cylinders) various transmission mechanisms. the analysis of the force on the arm, it bears the dynamic static loads of the wrist, hand workpiece during work, it has more movements complex forces. Therefore, the structure, working range, flexibility, grip size positioning accuracy of the arm directly affect the working performance of the manipulator.

The figure below shows the composition of a robot.
The structure of a robot consists of a mechanical body, peripheral auxiliary mechanical devices , a CPU chip processor, sensors (including visual sensors), various drivers, input/output systems; the series of actions they need to complete are all completed by the CPU processor, which inevitably requires system software programs to complete. Without system software programs, it will be a pile of scrap metal.

As for the questioner's question about doing this? I just laughed. It's a wild idea. It's easier said than done. It involves many aspects. It's simply a fantasy without systematic study. Designing manufacturing robots is a very complex system engineering, it is the result of the cooperation of a team many auxiliary factories.

In the field of robot application, Japan, the United States other countries have always been at the forefront of the world. my country is now just a large market in the world that needs robots. the perspective of national strategic needs the needs of enterprise transformation upgrading, there are too few talents in this area. Otherwise, according to the "Thirteenth Five-Year Plan" planned by the Ministry of Industry Information Technology, by 2020, the density of industrial robots will reach more than 100 robots per 10,000 employees. Therefore, students who choose to study robotics now are in a very good high-tech major with good employment prospects. It can be decisively said that in the next ten years, industrial robots will see a "ceiling" industry.

As for robots, I only have a superficial understanding of them. If you are young, I suggest that you continue to study learn, so that you can contribute to the country benefit mankind in the future.