Mistake-proofing clamping tool for typewriting of bearing with stop groove

The utility model discloses a typewriting mistake-proofing clamping tool for a bearing with a stop groove, and relates to the technical field of mechanical clamps. In order to solve the problems that during typewriting of a bearing with a stop groove in the prior art, when typewriting is required to be carried out on the upper surfaces of an inner ring and an outer ring in the opposite direction of the stop groove, direction identification and placement need to be carried out manually, and sometimes, typewriting is carried out on the end face of the outer ring in the same direction of the stop groove, so that the typewriting position is wrong; and the sealing ring is mounted on the end surface in the same direction of the stop groove, so that the mounting position of the sealing ring is wrong, and the production efficiency and unqualified products are greatly reduced. An arc-shaped stop block is arranged on the upper surface of the base, the arc-shaped stop block is connected with the base through a bolt, a f