Intelligent small piece desanding sander

The utility model discloses an intelligent small piece sand removing and sanding machine which comprises a processing plane, an adjusting plate is arranged above the processing plane, an empty groove is formed in the adjusting plate, a placement plate is arranged in the empty groove and connected with the adjusting plate through an elastic adjusting assembly, and a sanding head is connected to the lower side of the placement plate. The first motor drives the threaded rod to enable the adjusting plate to move so as to adjust the distance between the processing plane and the sanding head, so that the distance between the processing plane and the sanding head is adjusted to adapt to the size of a device to be sanded, and the placement plate and the adjusting plate are flexibly connected through the elastic adjusting assembly. When the distance between the processing plane and the sanding head is adjusted to be smaller than the size of the to-be-sanded device, the placement plate automatically moves relative to t