... : Cartesian coordinate robot, Single-axis robot arm, Industrial robotic arm, single arm robot, beam type robotic arm, linear modular unit, electric cylinder.1 ... belt or pinion and rack drive type of robot arm.Y axis: can be use the ball screw, ... belt or pinion and rack drive type of robot arm.3. The selection and functional description of robot ... shove and arrangement: X-Y double-axis robotic arm system