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The main purpose of this paper is to study the location calibration of 3-PPR high precision robot platform. The conventional precision calibration method has certain limitations, This paper adopts adaptive grid method for machine vision calibration, When the precision requirements are met, the mesh is reduced to continue calibration until the requirements are met. Otherwise automatically adjust the plane and continue to calibrate. The experimental results show that the adaptive mesh method has better performance than other methods, To meet the requirement of position calibration of 3D precision working platform with common plane. Keywords—high-precision robot; three driving modules; adaptive grid method; high efficiency

Machine Vision Calibration of High Precision Platform Based on Adaptive Grid Method