The Design And Research About Control System Based On A Four-DOF Mechanical Arm

Today's society is a rapidly developing society, numerical control technology is relative to the lifeline of the national economy. A good numerical control technology was able to bring about social development. Now, open motion control system has become almost NC Technology's future. It has developed several years, but it has not yet developed to a mature stage, so scholars and engineers is still researching and discussing it.This paper is the research and design about a control system based on a four degrees freedom's robot. And this control system as a motion control system, is mainly the bottom's design. And, we strive to develop a high stability, reliability and accurate control system.This paper based on the motor controller's control foundation, adds a big closed loop to improve the control system's control accuracy. This paper mainly analyzed and discussed the controlled object- mechanical arm's main body, studied the theory about this control system, analyzed the hardware's design and software programming, discussed the improvement about this system at last.Control system experiments show that the system can significantly improve the precision of control, and improve system stability, accuracy, so that the positioning accuracy of the robot arm has been greatly improved and enhanced.