Fairing clamping tool

The invention discloses a fairing clamping tool, and belongs to the field of machining. The clamping tool comprises a bottom plate, a centering assembly and a plurality of tightening assemblies. The centering assembly comprises a centering shaft, the centering shaft is perpendicularly arranged on the bottom plate, and the tightening assemblies are arranged on the bottom plate in the circumferential direction with the centering shaft as the center. Each tightening assembly comprises a sliding block, a tightening block and a locking mechanism. The sliding blocks can be arranged on the bottom plate in the manner of sliding in the radial direction of the centering shaft. The tightening blocks are arranged on the sliding blocks, and the surfaces, away from the centering shaft, of the tightening blocks are arc faces. The orthographic projection of the arc faces on the bottom plate is an arc line, and the radius of the arc line is identical to the inner diameter of the large end of a fairing to be clamped. The locki