Bush identification device and identification method

The invention discloses a lining identification device and method. The lining identification device comprises a base, a supporting mechanism, a diameter detection mechanism and a height detection mechanism. The supporting mechanism is mounted on the base and is used for bearing a bushing to be detected; the diameter detection mechanism comprises a clamping jaw cylinder, a clamping jaw and a first laser sensor, the clamping jaw cylinder is used for driving the clamping jaw to clamp the outer surface of the bushing, and the first laser sensor is used for measuring the displacement of the clamping jaw to detect the diameter of the bushing; the height detection mechanism comprises a second laser sensor, and the second laser sensor is used for detecting the height of the bushing. Whether the linings meet the requirements of the work station or not can be automatically recognized, the problem of wrong feeding during manual feeding is avoided, manpower is saved, the production efficiency is improved, the structure i