Topology optimization for structure of gear form grinding machine

JIN Mei-fu，ZHANG Zheng-wei，WU Hong-bin，XIAN Jie-yu

（College of Engineering，Nanjing Agricultural University，Nanjing 210031，China）

Abstract：Aiming at the problem of the large weight for the column of gear grinding machine designed by traditional design method，the three-dimensional model of specific grinding machine was established by means of the finite element method，and the column of the machine was analysised by using the ANSYS software. Through the combination of the load path of topological analysis and the new shell model of the column，7 kinds of column structures were suggested. The results indicate that the ratio of the mass and stiffness for the column structure with an angle of 45 degrees and 1 type is the best. The ratio of the mass and stiffness for the column structure with a

angle of 26.25 degrees and 1 type take second place，whereas，the ratio of the mass and stiffness for the original column structure is the worst. The first-order natural frequency increases by 12.86% for the column structure of angle of 26.25 degrees and 1 type and by 9.09% for the column structure of angle of 45 degrees and 1 type，respectively. The total mass ratio decreased by 9.09% for the column structure of angle of 45 degrees and 1 type and by 9.83% for the column structure of angle of 26.25 degrees and 1 type.