High-precision end face feature reverse milling process method

The invention relates to a high-precision end face feature reverse milling process method. The method comprises the following steps: (1) constructing a space pose adjusting device; (2) hoisting a bottom supporting pose adjusting mechanism of the space pose adjusting device to a machine tool table top; (3) hoisting a cabin body to the position above the bottom supporting pose adjusting mechanism; (4) hoisting an end face limiting and pressurizing mechanism of the space pose adjusting device to the front end face and the rear end face of the cabin body; (5) dotting and measuring a 6-metal boss end face at the large end of the cabin body by using a machine tool; (6) mounting a top limiting pressurizing mechanism of the space pose adjusting device above a product step by step, and fastening the product; and (7) milling the 6-large-end metal boss end face by adopting a fixed shaft contour milling manner, wherein the plane run-out of the 6-large-end metal boss end face is required to be less than or equal to 0.1 mm