Binocular vision technology is applied to get the parameters of Oerlikon spiral cutting tools: get internal and external parameters of the system through stereo calibration and rectifying the stereo pairs of cutting tool images. After edge extraction and linear fitting

make coplane straight line intersection points as matching characteristic points. Use the position relationship between space points and space plane to calculate the parameters of the Oerlikon’s gear cutting tools

the algorithm is verified by experiment

and the experimental results show that the measurement method is validated and has certain practical application value.