the car milling machining center spindle box mainly by the spindle and the spindle on relevant parts, body, encoder related parts and some standard composition, the application of UG unique based on characteristics of the parts and components modeling function, the use of tensile, rotating, tendons, lofting and scanning, array characteristics and drilling easily design components of the three-dimensional entity.

Research the subprogram characteristics, combined with the actual production, introduce the subprogram application systematically, Illustrate flat milling, layer cutting, removal of residual material, realization of rough and finish processing, optimization of parts program, processing the same profiles and the same parts, etc., elucidate the method and technique of subprogramming, show the incremental programming of rotate instructions.