Automatic material disc positioning device

The invention discloses an automatic material disc positioning device. The automatic material disc positioning device is used for positioning material discs each provided with a central hole and a positioning hole formed to be eccentric with the central hole and comprises a working table (2) and material accumulation areas (4) located on the working table (2). The automatic material disc positioning device is characterized in that the working table (4) is provided with a manipulator (6) and a positioning device (8), and the positioning device (8) comprises a rotating shaft (10) which can be partially inserted into the central holes of the material discs and used for driving the material discs to rotate concentrically and movable pins (12), wherein the distances between the movable pins (12) and the axis of the rotating shaft (10) and the horizontal distance between the positioning holes and the central holes are equal. According to the automatic material disc positioning device, the movable pins (12) can be a