All-fixed motor-driven high-speed SCARA (selective compliance assembly robot arm) robot

The utility model relates to an all-fixed motor-driven high-speed SCARA (selective compliance assembly robot arm) robot, and aims at achieving the goal that the provided robot ought to have the characteristics of being simple in structure, accurate in positioning and high in work efficiency. The technical scheme is that the all-fixed motor-driven high-speed SCARA robot comprises a machine base, a motor set, a big arm, a small arm, a lead screw and a transmission mechanism, wherein the big arm is positioned in the machine base in a manner that the big arm can horizontally rotate, the small arm is positioned at the front end of the big arm in a manner that the small arm can horizontally rotate, the lead screw is positioned at the front end of the small arm in a manner that the lead screw not only can horizontally rotate but also can vertically move, and the transmission mechanism is used for transmitting the power of the motor set so as to drive the big arm, the small arm and the lead screw to move; the all-fixed motor-driven high-speed SCARA robot is characterized in that the motor set comprises a first motor, a second motor, a third motor and a fourth motor, wherein the first motor is used for driving the big arm to rotate, the second motor is used for driving the small arm to rotate, the third motor is used for driving the lead screw to rise or fall, and the fourth motor is used for driving the lead screw to rotate; the first motor, the second motor, the third motor and the fourth motor are respectively arranged in the machine base (the first motor, the second motor, the third motor and the fourth motor respectively keep static under a working condition).