Fixture for machining bores of thin-wall parts

The utility model relates to a fixture for machining bores of thin-wall parts, which comprises a fixture body, the ends of supports are fixed on the fixture body, a compression plate is mounted the other ends of the supports, and is provided with compression screws, and the fixture body is provided with an end face and an inner cylindrical face, which are used for fixing a workpiece. The fixture fixes the periphery and end face of the workpiece, the clamping part is on the end face of the workpiece, the workpiece only receives axial force rather than radial force, consequently, the workpiece cannot be deformed in the process of clamping, and the machining precision is high. The clamped part for the workpiece is dispensed with, the utilization rate of material is greatly increased, and the fabrication cost is reduced by more than one third. The structure is simple, fabrication is convenient, and the production efficiency is high.