Neodymium iron boron magnet size and appearance defect detection device

The invention belongs to the field of optics automatic detection, and particularly relates to a neodymium iron boron magnet size and appearance defect detection device. A detection workbench is included and provided with a feeding mechanism, a conveying mechanism, a detecting mechanism, a discharging mechanism and a control mechanism, and therefore during usage, an operator only needs to place a to-be-detected sample in a vibration disc of the feeding mechanism, the to-be-detected sample is vibrated and fed to the conveying mechanism through the vibration disc, a rotation disc drive motor of the conveying mechanism drives an optics rotation disc to rotate, the to-be-detected sample is driven by the optics rotation disc to rotationally move, and when the to-be-detected sample arrives at thedetecting mechanism, the detecting mechanism detects the size and the appearance defect of the to-be-detected sample; and after detection is finished, the sample moves to the discharging mechanism under driving of the optics