The effect of link parameter on the working space of general 3R robot arms

Abstract This paper will consider a robot into two parts: “regional structure” and “orientational structure”. The regional structure contributes the gross motion of the robot hand, and the orientational structure contributes the orientation of the robot hand. By studying the effects of kinematic parameters on the general 3R robots, the optimum regional structure and the optimum orientational structure are arrived in this paper.