Optical fiber shearing device

The utility model belongs to the technical field of shearing equipment, and discloses an optical fiber shearing device which comprises a bottom frame, an operation table is fixedly installed on the top of the bottom frame, and a fixing plate is fixedly installed on the top of the operation table. Through a movable block, a movable rod, a clamping block and a graduated scale, when an operator pulls a handle outwards, a connecting plate is driven by the handle to move outwards, then the clamping block and the movable rod are driven by the connecting plate to move outwards, and meanwhile, the clamping block is separated from the interior of a notch, so that the whole movable block is not fixed; according to the optical fiber shearing device, the movable block is integrally moved to a proper position, and a fixed rod, a movable rod and a connecting plate are driven to move backwards under the elastic force action of a flexible spring, so that a clamping block is moved into a notch, the movable block is fixed, an