Patent ID: 8783100

Claim:
A method for dynamically checking teeth of a part ( 1 ) defined at least by its module, its nominal diameter and its tooth profile, the method comprising the steps of: mounting the part ( 1 ) to be checked on a first motorized spindle ( 22 ) angularly controlled by a first encoder ( 25 ), mounting a master pinion ( 2 ) on a second motorized spindle ( 32 ) angularly controlled by a second encoder ( 35 ), arranging the two spindles parallel to one another and separating the two spindles by a center distance that allows the master pinion to mesh with the part to be checked, measuring angular deviations between the two spindles using the information supplied by the encoders, processing the information by a calculator and deducing possible defects of the teeth from these deviations, employing a master pinion ( 2 ) with a small thickness compared to the thickness of the part ( 1 ) to be checked so as to minimize the contact area of the teeth of the master pinion on the teeth of the part to be checked, when carrying out the measuring step, axially moving the master pinion ( 2 ) along a profile of the teeth of the part ( 1 ) to be checked, and extracting from the performed measurements both radial defects and angular defects of the teeth, and these defects being differentiated.