Robotic steel rail marking system based on 3D vision

The invention provides a robotic steel rail marking system based on 3D vision. The robotic steel rail marking system comprises a marking workbench, a movable marking robot and a steel rail marking-conveying mechanism, wherein a movable guide rail and the steel rail marking-conveying mechanism are laid on the marking workbench; the movable marking robot comprises a pulley mechanism, a base, a main controller, a mechanical arm, a laser marking mechanism and a three-dimensional sensor assembly; the movable marking robot slides along the movable guide rail based on the pulley mechanism; the steel rail marking-conveying mechanism comprises a conveying belt assembly and a stroke control assembly; the conveying belt assembly is used for the placement of a to-be-marked steel rail; the stroke control assembly is used for controlling the stroke of a conveying belt; the steel rail marking-conveying mechanism is used for conveying the to-be-marked steel rail to a designated position based on the conveying belt assembly a