Adjustable arm for industrial robot

The invention relates to the technical field of manipulators, in particular to an adjustable arm for an industrial robot, which comprises a first mechanical arm and a robot body provided with the first mechanical arm, the first mechanical arm is hinged with a second mechanical arm, the second mechanical arm is fixedly provided with a support disc, the support disc is fixedly provided with an electric telescopic rod, and the electric telescopic rod is connected with the first mechanical arm. A movable connecting ring is fixedly mounted on the electric telescopic rod, a first protection plate and a second protection plate are mounted on the second mechanical arm, and when the atomizing nozzle is in a non-working state, the first protection plate and the second protection plate are closed together, so that a good protection effect on the atomizing nozzle can be achieved, and when the atomizing nozzle is in a working state, the first protection plate and the second protection plate are closed together. The first