Abstract
A modeling method is presented for grinding of the designated geometrical parameters of twist drill in a Biglide parallel machine, which has the more effective and economic potentialities for grinding of drill point. The grinding kinematics trajectory and condition are analyzed based on the structure of the Biglide parallel machine. Moreover, the mathematical model of twist drill flank are derived and used to develop the parametric models of twist drill based on the grinding parameters of the Biglide parallel machine. The optimal grinding parameters are obtained for the custom-oriented twist drill using genetic algorithm. The grinding experiment results using the optimal grinding parameters agree well with the designated geometrical parameters of twist drill and show a marked improvement in grinding precision of the drill point in the Biglide parallel machine, depending on the customers’ demands.
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