Cartesian Robot

直角坐标机器人Advanced

A robot whose end effector moves along three mutually perpendicular straight-line axes: X, Y, and Z.

A Cartesian robot has three main motion axes, all linear, meaning prismatic joints, moving along mutually perpendicular X, Y, and Z directions, so the end-effector position is simply given by the three axis readings, with almost no inverse-kinematics computation needed. A version with the crossbeam supported at both ends and spanning above the work area is called a gantry robot; it offers a large working range, good stiffness, and can handle heavy loads. It has a simple structure, high precision, and is easy to scale, common in machine-tool loading and unloading, palletizing, dispensing, and 3D printers and CNC machines. Its drawbacks are a large footprint, motion confined to a rectangular box, and limited orientation flexibility, requiring an added rotary axis whenever an angle needs to change. Together with the 6-axis arm and SCARA, it forms one of the basic configurations of industrial robots.

ExampleA three-axis gantry manipulator above an injection-molding machine lifts a molded part out of the mold and places it on a conveyor.

Also called: Gantry Robot, Cartesian Coordinate Robot
Related: Industrial Robot · Prismatic Joint · Selective Compliance Assembly Robot Arm · 6-Axis Robot Arm · Machine Tending · Palletizing / Depalletizing
Sources: Cartesian coordinate robot - Wikipedia