Manufacturing method of high-precision sleeve part

The invention discloses a manufacturing method of a high-precision sleeve part, and belongs to the technical field of machining of high-precision parts. The process comprises the steps of drilling, turning, milling, outer circle rough grinding, checking, outer circle accurate grinding and inner hole accurate grinding, an adjustable eccentric alignment positioning device is adopted for outer circle rough grinding and outer circle accurate grinding, and an end face pressing device is adopted for inner hole accurate grinding. According to the manufacturing method of the high-precision sleeve part, the machining process method is adjusted, specifically, drilling, turning, grinding and milling are sequentially adjusted into drilling, turning, milling, outer circle rough grinding, checking, outer circle accurate grinding and inner hole accurate grinding, deformation generated by turning and milling is gradually eliminated from the process method, a face not prone to deformation is selected as a positioning datum pl