High-precision positioning device with material identification function

The utility model relates to a high-precision positioning device with a material identification function, which comprises a high-precision positioning device, and a high-precision trolley with a workpiece loaded on the top moves to the high-precision positioning device so as to realize the feeding and discharging work of a robot. The high-precision positioning device comprises an X-direction positioning device, a Y-direction clamping mechanism, a fine positioning mechanism, a limiting mechanism, a workpiece detection device and a material recognition device. The high-precision trolley has the beneficial effects that positioning of the high-precision trolley in the X direction and the Y direction can be accurately achieved, adjustment and limiting in the Z direction can be achieved, the number of workpieces loaded on the high-precision trolley can be detected through the workpiece detection device and the material recognition device, and related information of the high-precision trolley and the workpieces can