Compilation of drilling load spectrum based on the characteristics of drilling force

In order to overcome the problem that existing methods of compiling load spectrum spindle or machine tool mainly aim at cutting force spectrum, torque and speed respectively, which ignore connection between each in this paper, a method for drilling motorized CNC based on characteristics is proposed. Firstly, tests under different processing technologies are carried out measure its load, correction coefficient empirical formula obtained through fitting measured force, makes calculation axial more reasonable. Secondly, compared with extended factor method, transcendental probability optimized solve ultimate force. Then, after setting as main drilling, an eight-stage compiled. Finally, according relationship other loads, loading transformed into multidimensional spectrum.