Radial Machine Vision in Machine Measurement of End Milling Blade Angle
In order to improve the efficiency of grinding milling cutters in enterprises,the relationship be-tween the grinding angle of milling cutter end teeth and the helix of milling cutters was studied.A machine vision based method for measuring the edge angle during the grinding process of end milling cutter teeth is proposed.Measure the tool tip angle on the machine tool by taking radial photos of the milling cutter.The ROI area is determined by roughly locating the intersection position of cutting edges using template matc-hing.By extracting sub pixel contours,the precise coordinates of the cutting edge intersection of the milling cutter are obtained,and the angle of the milling cutter tip is calculated based on the offset between this co-ordinate and the end face position.The experimental results show that the maximum absolute error of the system is 0.094°,and the average calculation time is 0.086 s,meeting the requirement of enterprise error not exceeding 0.1°.
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