Helium leak detection tool for microwave assembly

The utility model relates to a microwave assembly helium leak detection tool, belongs to the technical field of microwave assembly detection dies, and solves the problem that in the prior art, a microwave assembly is easy to expand and deform in the leak detection process. The device comprises a bottom plate, an upper plate and a fixing assembly, a microwave assembly to be detected is arranged between the bottom plate and the upper plate; the fixing assembly is used for fastening and connecting the bottom plate and the upper plate, so that the microwave assembly can be clamped and fixed between the bottom plate and the upper plate; the bottom plate and the upper plate are provided with limiting blocks and plane plates; the limiting block is used for limiting and fixing the microwave assembly; the surface plate can be in contact with the bottom surface or the top surface of the microwave assembly; the surface plate compresses the microwave assembly to prevent expansion deformation of the microwave assembly. Th