METHOD OF CHECKING A LEVEL OF TIGHTENING QUALITY OF A SCREWDRIVER, ASSOCIATED DEVICE AND PROGRAM IMPLEMENTING THE PROCESS

摘要

A method of checking a screwdriver's screwing quality level 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 tightening 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 one piece of information representative of a dispersion and / or a deviation from the audit screwing objective, resulting from disturbances induced by said screwdriver.