The invention relates to the technical field of
laser rust removal, and discloses an intelligent
focal length control system for
laser rust removal. The
system comprises a base, a first speed reduceris installed at the front end of the base, a
focal length control box is installed at the lower end of the inner side of a clamp, a
laser head is installed at the bottom end of the
focal length control box, a camera is installed on one side of the focal length control box, and three displacement sensors are installed at the position, close to the outer side of the laser head, of the upper end of the focal length control box. According to the intelligent focal length
control system, real-time shooting is carried out on a to-be-derusted workpiece by the camera; the size and shape of the workpiece and the
rust position on the surface of the workpiece are obtained; real-
time distance measurement is carried out on the two sides of a to-be-derusted position through the three displacement sensors; and the distance and angle of the laser head are adjusted through a first rotating joint motor, a second
servo motor, a second rotating joint motor and a first
servo motor, the position of the laserhead can be accurately controlled, optimal focal length control is achieved, the purpose of efficient rust removal is achieved, and damage to the workpiece is reduced as much as possible.