Hub size detection device

The utility model provides a wheel hub dimension detection device, and belongs to the technical field of detection. The receiving module is provided with a receiving end; a lens module; the lens module adopts a double telecentric lens; and a transmitting module. When a hub to be detected is placed in a detection area of the receiving module, 2D detection is firstly carried out, the receiving module can receive a corresponding light beam, the lens module corrects the light beam reflected by a part to be detected, finally, a clear and accurate 2D image is formed on the receiving module, and the size of a hub cap spigot is obtained through image algorithm processing. Then 3D detection is carried out, image acquisition is carried out through cooperation of the transmitting module and the receiving module, the receiving module generates 3D point cloud data, and then the depth of the hub cap groove is obtained through a 3D image detection algorithm. Therefore, the fusion of 2D detection and 3D detection is realized