Automatically-controlled objective table

The utility model discloses an automatic control objective table which comprises a base, a guide rail, a sliding plate, a small gear, a large gear, a ball screw, a bolt, an optical axis, an input shaft, an output shaft, a key, a sliding block, a rolling bearing, a servo motor, a PLC, a servo motor driver, a human-computer interface (HMI) and a measurement objective table. The ball screw is connected with the servo motor and fixed to the sliding plate through a bolt, rotation of the motor is converted into linear motion, and three-dimensional linear motion of the objective table on the X axis, the Y axis and the Z axis is achieved. The rotary servo motor controls the rotation of the output shaft through a large gear and a small gear to realize the rotary motion of the Z axis; and the HMI is connected with the PLC through the Ethernet to send a control signal to the servo motor driver, so that four-dimensional motion control of the objective table is realized. According to the invention, automatic control and r