Thickness detection mechanism for insulating paint surface of cylindrical lithium battery

The utility model discloses a cylindrical lithium battery insulating paint surface thickness detection mechanism, which comprises a base and a positioning frame, the base is provided with a lifting device, the lifting device is provided with a support, the support is provided with at least one bearing seat, the bearing seat is provided with a bearing groove, the positioning frame extends upwards from the base, and the positioning frame is provided with a positioning groove. The positioning frame is provided with a first detection device along the height, the upper part of the positioning frame horizontally extends to form a horizontal frame, and the lower wall of the horizontal frame is provided with a second detection device; when the lifting device moves by a preset stroke, the first detection device and the second detection device make contact with the side wall and the peripheral wall of the lithium battery respectively, and a preset numerical value of the first detection device or the second detection de