Strain gauge pasting quality testing device

The utility model relates to a strain gauge pasting quality testing device which is composed of a cushion block, a pressing block and a fastening bolt. One side of the cushion block in the thickness direction is a convex cambered surface with fixed curvature, one side of the pressing block in the thickness direction is a concave cambered surface with consistent curvature with the cambered surface of the cushion block, and the cushion block and the pressing block are connected together by the fastening bolt through the bolt hole. During testing, the to-be-tested member is clamped by the cushion block and the pressing block from the two sides of the to-be-tested member respectively, the to-be-tested member is forced to slightly deform along the known cambered surface by screwing the fastening bolt, and the pasting quality of the strain gauge is judged by comparing the error between the actual strain value and the theoretical strain value of the strain gauge. According to the utility model, a reference standard