Self-positioning lamp mounting device

The invention relates to the technical field of lamp equipment industry, and particularly discloses a self-positioning lamp mounting device which is characterized by comprising a lifting device, and a plurality of guide frames are arranged on the lifting device; a supporting device is arranged on the guide frame and connected with the lifting device through a screw, the guide frame is connected with the lifting device in a sliding fit mode, and the supporting device is connected with the guide frame in a sliding fit mode. The supporting device comprises a bearing frame, a supporting plate, spring positioning pins, buffer springs and lamp bodies, the four buffer springs are arranged between the bearing plate and the supporting plate and annularly arranged on the periphery of the supporting plate, the spring positioning pins are arranged in the buffer springs, and the four lamp bodies are fixedly arranged on the supporting plate; a plurality of limiting mechanisms are arranged at the upper end of the guide fram