Plate glass curvature detecting device and detecting method

The invention discloses a plate glass curvature detecting device and detecting method. According to the method, through a specimen set, curvature of plate glass is measured, and the detecting device comprises a guide rail and at least two clamp assemblies; the two clamp assemblies are arranged on the guide rail, each clamp assembly can slide along the guide rail, and each clamp assembly comprisesa sliding block, a first clamping board set and a second clamping board set; the sliding blocks are arranged on the guide rail and can slide along the guide rail, the sliding blocks are provided withlocking mechanisms, and by means of the locking mechanisms, the sliding blocks can be fixed onto the guide rail and cannot move; the first clamping board sets are arranged on the top surfaces of the sliding blocks, and the first clamping board sets comprise first rubber cushions; the second clamping board sets are arranged on the bottom surfaces of the sliding blocks, and the second clamping boardsets comprise second rubbe