Novel processing technology of aircraft skin

The invention provides a novel machining process of an aircraft skin. A skin milling five-axis machining head, a special skin positioning and clamping device and a rapid skin profile measuring device which are assembled on a five-axis gantry machine tool are included. A traditional skin chemical milling technology is replaced, and the problems that chemical milling pollution is caused, the profile tolerance is poor, and the method is not suitable for machining of the aluminum lithium skin are solved; a skin mirror image milling process is replaced, and the problems that skin mirror image milling machining efficiency is low, surface smoothness is poor, and mirror image milling equipment cost is high are solved; according to the invention, the process of chemical milling sinking or mirror milling sinking and then contour milling in the traditional skin dispersed processing is changed into the centralized processing process of skin sinking milling and contour milling at the same station, the process is completed