LASER MEASUREMENT SYSTEM AND METHOD FOR MEASURING SIX-DEGREE-OF-FREEDOM GEOMETRIC ERROR OF ROTATING SHAFT

摘要

A laser measurement system and method for measuring a six-degree-of-freedom geometric error of a rotating shaft includes a laser emission unit, a six-degree-of-freedom error measurement unit, a six-degree-of-freedom error sensing unit and a servo tracking unit capable of being installed on the rotating shaft to be measured, in which the error measurement unit enables light to be emergent from the error sensing unit and generates a measuring signal according to emergent light and reflected light and backward reflected light of the error sensing unit, and the servo tracking unit includes a four-dimensional adjustment mechanism for realizing four-dimensional adjustment; a motor fixedly installed on the adjustment mechanism; an angle measurement sensor for measuring a rotation angle of the motor; an installation plane fixed on the adjustment mechanism, coaxially rotating with the motor and used for installing the error sensing unit; and a control circuit for controlling the servo tracking unit according to the measurement signal from the six-degree-of-freedom error measurement unit.