Automatic wet sanding apparatus

An automatic wet sanding apparatus that performs automatic wet sanding in which a sanding sliding body is pressed against a painted surface of a painted object that has been painted and the sanding sliding body is moved with water flowing between the sanding sliding body and the painted surface to sand down the painted surface, the automatic wet sanding apparatus comprising:

• a case that forms an introduction space of the water;
• a water supply pipe that supplies the water to the introduction space;
• a disc that is located closer to the painted surface than the introduction space in a state where the automatic wet sanding is performed;
• a cushion pad which moves integrally with the disc and on which the sanding sliding body is mounted;
• a disc center hole formed at a central portion of the disc;
• a pad center hole formed at a central portion of the cushion pad and communicating with the disc center hole;
• and
• a push-out device that pushes out water that has been supplied to the introduction space through the water supply pipe toward the painted surface via the disc center hole and the pad center hole.