Rapid testing fixture for impeller hub

The utility model discloses a rapid testing fixture for an impeller hub, which comprises a fixed frame, a detection sliding space is arranged on the fixed frame, a plurality of reference blocks and a plurality of dial indicators are respectively arranged on two sides of the detection sliding space, and the reference blocks and the dial indicators are detachably connected. The plurality of reference blocks and the plurality of dial indicators are distributed along the length direction of the detection sliding space, the plurality of reference blocks and the plurality of dial indicators are arranged in a one-to-one correspondence manner to form a plurality of groups of quick detection assemblies, measuring rods of the dial indicators directly face the reference blocks, and the plurality of groups of quick detection assemblies are distributed on the vertical plane in a staggered manner; the rapid detection tool can rapidly detect errors of a plurality of to-be-detected external diameter parameters of the impelle