METHOD FOR CONTROLLING A TIGHTENING QUALITY LEVEL OF A SCREWDRIVER, ASSOCIATED DEVICE AND PROGRAM IMPLEMENTING THE METHOD

摘要

Method for controlling a level of screwing quality of a screwdriver with respect to a predetermined screwing objective, implemented during the screwing of at least one assembly and comprising the following steps: - obtaining (4.3), at a predetermined angular frequency, of a series of doublets representative of the increase in torque of the screwing of at least one screw, constituting a first table of values, each doublet comprising an angle value and a torque value; - determination (4.4), from said first table of values, of a second table of values presenting the torque as a function of the angle, and representative of the true characteristic of the at least one screw; - determination (4.5.1) of a third table of values presenting the torque as a function of the angle and representative of the disturbances induced by said screwdriver during the increase in torque of the screwing of at least one screw, from the first and second tables; - analysis of the third table (4.5.2, 4.5.3, 4.5.4, 4.5.5, 4.5.6, 4.6), delivering at least information representative of a dispersion and / or a deviation from said audit screwing objective, resulting from disturbances induced by said screwdriver.