Safety type shearing limiting device

The utility model belongs to the field of shearing, particularly relates to a safety type shearing limiting device, and aims to solve the problems that when an existing galvanized steel springboard is sheared, no clamping device is used for helping the galvanized steel springboard to keep stable, deviation is prone to occurring, workers need to manually help the galvanized steel springboard to move out after shearing is completed, and meanwhile shearing efficiency is affected. According to the technical scheme, the device comprises a workbench, the top of the workbench is fixedly connected with a mounting plate, the bottom of the mounting plate is provided with a shearing machine, the top of the workbench is provided with a rectangular hole, and the inner wall of the top of the workbench is fixedly connected with two first fixing plates which are symmetrically arranged. When the galvanized steel springboard moves to the second rectangular box, an output shaft of the servo motor rotates forwards, the two clamp