Ling type metering instrument for hardness detection

The utility model discloses a Ling-style metering instrument for hardness detection, and relates to the technical field of Ling-style metering instruments. The device comprises a pedestal, the top of the pedestal is provided with a detection bench, the outer side of the pedestal is provided with a protection assembly, the back surface of the pedestal is fixedly connected with a fixed seat, the back surface of the detection bench is provided with a fixed housing, and the bottom of the detection bench is fixedly connected with a blocking housing. The clamping blocks are arranged, specifically, the motor is started to drive the rotating disc to rotate through the rotating shaft, when the connecting blocks get close to each other, the clamping blocks can be driven to get close to each other, an object is clamped and fixed, the object can be pushed to the center, the object can be automatically positioned in the clamping process, and the deviation situation cannot occur; and the number of the clamping blocks is fo