The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2020
Filed:
May. 11, 2017
Beijing Jiaotong University, Beijing, CN;
Beijing Jiaotong University, Beijing, CN;
Abstract
The present invention discloses a laser measurement system and method for measuring a six-degree-of-freedom geometric error of a rotating shaft. The system comprises 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 a rotating shaft to be measured, in which the six-degree-of-freedom error measurement unit enables light to be emergent the six-degree-of-freedom error sensing unit and generates a measuring signal according to emergent light and reflected light and backward reflected light of the six-degree-of-freedom error sensing unit, and the servo tracking unit comprises a four-dimensional adjustment mechanism for realizing four- dimensional adjustment; a motor fixedly installed on the four-dimensional adjustment mechanism; an angle measurement sensor for measuring a rotation angle of the motor; an installation plane fixed on the four-dimensional adjustment mechanism, coaxially rotating with the motor and used for installing the six-degree-of-freedom 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. The present invention can realize simultaneous and rapid measurement of the six-degree-of-freedom geometric error of the rotating shaft.