Three-Point Measurement Principle and Simulation Analysis of Cylindrical Degree of CNC Roll Grinding Machine
Aiming at the problem that the off-line two-point method of cylindricality of CNC roll grinding machine cannot participate in program calculation,and it is difficult to separate a variety of errors generated in the measurement process,a three-point cylindricity error separation method is proposed.This method ap-plies the error separation technology(EST)to the measurement of roll cylindricality,and establishes a mathematical model based on the MATLAB platform.In order to verify the advantages of the three-point method,10 roll cross-section profiles were preset for error separation simulation and analysis.The results show that;The three-point cylindrical measuring method can participate in the program calculation,effec-tively separate the roundness error of each section of the roll,the radius difference between each section,and the initial position of the minimum squares center of each section,and at the same time can also sepa-rate the rotation error of the rotary shaft and the straight motion error of the straight guide rail,laying a foundation for further accurate measurement of the cylindrical degree of the roll.
CNC roll grinderthree-point method error separationcylindricity errorstraight error
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