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 the 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, wherein
• the push-out device has a stirring head that is provided inside the case and stirs the water in the introduction space;
• and
• the disc has a disc hole that is formed at a position on an outer circumferential side relative to the disc center hole and communicates with the introduction space, and a communication passage that allows communication between the disc hole and the disc center hole.