Thickness detection device for connecting sheet

The utility model provides a connecting sheet thickness detection device, which comprises a connecting sheet positioning assembly and a detection assembly used for detecting the thickness of a connecting sheet on the connecting sheet positioning assembly, and is characterized in that the detection assembly comprises a lever, and a detection pressing rod and a correlation optical fiber part which are respectively arranged at the two ends of the lever; the lever comprises an optical fiber arm and a detection arm which are connected, the detection arm is connected with the detection pressing rod, and the optical fiber arm is close to the correlation optical fiber part and located in the middle of the correlation optical fiber part; and the length of the detection arm is smaller than that of the optical fiber arm. According to the connecting piece thickness detection device, the lever principle is utilized to enable the optical fiber arm to generate displacement corresponding to the thickness multiple of the conn