Automatic label aligning device of bearing assembly instrument

The invention discloses an automatic label aligning device of a bearing assembly instrument. The automatic label aligning device of the bearing assembly instrument includes a measuring frame, a label aligning air cylinder, a standard ring, a label aligning sleeve, a measuring top block, and a measuring air cylinder; wherein the label aligning air cylinder is horizontally arranged on the measuring frame, the label aligning sleeve is connected to a push rod of the label aligning air cylinder, and can move to a label aligning position under the drive of the label aligning air cylinder, and the standard ring is arranged on the measuring top block; the measuring air cylinder is arranged at the lower part of the measuring frame, and the measuring top block directly faces the label aligning position and can move up and down under the drive of the measuring air cylinder; the measuring frame is also provided with a sensor. The automatic label aligning device is small in size, cannot occupy space, and can be directly arranged within an original measuring system, and label aligning can be automatically controlled by program setting, in such a way that the manual error can be eliminated, and the measuring accuracy of the measuring system is stable.