Machining method and device of compressor inlet guide blade

The invention relates to the field of machining, and discloses a machining method and a device of a compressor inlet guide blade. The three-dimensional modeling is performed for an inlet guide base to be machined, and a machining coordinate system of a three-dimensional model of the inlet guide blade is adjusted, so that the machining coordinate system is consistent with a coordinate system of the inlet guide blade on a machine tool in actual machining; according to the size requirements of the inlet guide blade, the inlet guide blade to be machined is roughly machined; the inlet guide blade to be machined is heated to reach a preset hardness; the inlet guide blade to be machined is semi finished; according to the three-dimensional model, the inlet guide blade to be machined is finished by using a ball end mill to machine a requested curved surface; and the machining of the inlet guide blade is finished through round angle and round edge polishing and deburring. The invention realizes a practical, efficient a