A study was conducted on the development of a CNC gear measuring machine for measuring involute tooth profile by a new measurement method. Involute tooth profile measurement has been done, until now, by almost always using two-axis control in which the probe moves only in the X-axis direction synchronously with the gear rotation angle (θ). In contrast, the newly developed measurement method uses three-axis control in which the probe moves along the line of action under control in two orthogonal, axial directions (along the X and Y axes) synchronously with the gear rotation angle (θ).
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