Detection method for light path coaxiality of laser output head

• Main Authors: KANG LANG, LIU DEJUN
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2019
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a detection method for the light path coaxiality of a laser output head, comprising the following steps: obtaining a to-be-detected laser output head which comprises a servo motor, a lens cone assembly driven by the servo motor to move, and a nozzle seat fixedly arranged on an optical path; respectively controlling the servo motor to drive the lens cone assembly to move toan original point position, an upper limit position and a lower limit position, mounting a customized nozzle on the nozzle seat in the corresponding position state, and then adhering an adhesive tapeto the surface of the outermost end of the customized nozzle; starting a laser to emit light at a single point, and forming three mark points and circular outlines of three customized nozzles on the three adhesive tapes; and then judging whether light beams are concentric or not according to the positions of the three mark points on the adhesive tapes. According to the invention, whether the optical path of the laser outpu