Automatic splitting machine

The utility model belongs to the technical field of universal splitting devices for GPP silicon wafers, and particularly relates to an automatic splitting machine, which solves the problems of difficulty in replacement and poorer practicability in the prior art, and comprises a base and a pinch roller, the top of the base is fixedly connected with a rotating seat, a wafer is arranged on the rotating seat, and the pinch roller is arranged on the rotating seat. Two symmetrically-arranged sliding rails are fixedly connected to the top of the base through screws, through arrangement of structures such as a first sliding block and a second sliding block, when the roller is replaced, only two receding rods need to be pulled downwards at the same time, the receding rods drive the first sliding block to move downwards, and due to the fact that a part of a limiting rod is slidably connected into a limiting groove, the roller can be conveniently replaced. Therefore, when the first sliding block moves downwards, the sec