Articulated robot ----- Senlong Jiang

 An articulated robot is one which uses rotary joints to access its work space. Usually the joints are arranged in a “chain”, so that one joint supports another further in the chain. Articulated robots can range from simple two-jointed structures to systems with 10 or more interacting joints. They are powered by a variety of means, including electric motors.  

 

The research indicated that most articulated robots are used in companies and productivity progams. Of cource, some articulated robots also used by family in order to help elders do some easy housework, such as move furnitures or passing cups.

Otherwise, because most articulated robots used by companies, it is more important to focus on the accuracy. The difference between the point that a robot is trying to achieve and the actual resultant position. Absolute accuracy is the difference between a point instructed by the robot control system and the point actually achieved by the manipulator arm, while repeatability is the cycle-to-cycle variation of the manipulator arm when aimed at the same point.

The smallest increment of motion or distance that can be detected or controlled by the control system of a mechanism. The resolution of any joint is a function of encoder pulses per revolution and drive ratio, and dependent on the distance between the tool center point and the joint axis.

Articulated robot provides the high speed of productivity and make sure the accuracy, which could make the program more efficiency. In addition, it also help company save the resource of workforce and make more profits. In the future, articulated robot should be get the higher position in the program of productivity.