Adhesive tape tension testing device

The utility model relates to the technical field of adhesive tape inspection, in particular to an adhesive tape tension testing device. The clamping device comprises a base, a pair of clamping assemblies arranged at the top of the base and a fixing assembly arranged on one side of the clamping assemblies. The clamping assembly close to one end of the fixing assembly is fixed to the base, and the other clamping assembly slides relative to the base. The clamping assembly comprises a box body, an electric push rod fixed to the top side of the box body, a cutter arranged in the box body and connected with the electric push rod, and a workbench fixed to the bottom of the box bottom. Openings for the adhesive tape to pass through are formed in the same plane positions of two sides of the box body and the top surface of the workbench; the U-shaped block is arranged in an inverted mode, an abutting column is arranged at the bottom of the vertical end of the U-shaped block, grooves are symmetrically formed in the top