MC series engine bearing cover reverse installation automatic identification device

The utility model discloses an MC series engine bearing cover reverse installation automatic identification device which comprises a metal induction sheet, a proximity switch, a PLC and an alarm and is characterized in that the metal induction sheet is arranged above a bearing cover assembling station, and the bottom end of the metal induction sheet is located between a bearing cover blank protruding face and a bearing cover bolt supporting plane; the proximity switch is arranged on the outer side of the metal induction sheet and connected with the PLC through a cable, and the output end of the PLC is connected to the alarm. Under the normal condition, the metal induction sheet suspended on the bolt supporting plane of the bearing cover cannot be contacted with the bearing cover, the distance between the contacts of the proximity switch cannot be changed, the detection of the PLC system is normal, and the next cycle is continued; when the bearing cover is installed reversely, the metalinduction sheet will mak