| For large hard tooth surface gear ring of high precision grinding, in domestic has always been a difficult point, as the demand for high precision within large hard tooth surface gear ring, in order to solve this situation, in theory, have completed for grinding within large hard tooth surface gear ring spherical worm wheel gear grinding machine design. In this paper, on the basis of the whole research on the rotary table of gear grinding machine in order to improve the structure rigidity as the target of optimization design research, based on the topology optimization and combined with the bionic structure,using a new train of thought to get the structure form of workbench is more reasonable.This paper mainly completed the content:Introduced in large to grinding hard tooth surface gear ring research status at home and abroad, and summarizes the finite element analysis, topology optimization, structure bionic these three methods in optimum design of machine tool structure development present situation, and illustrates the main research content of this article.Reference spherical worm wheel gear grinding machine overall design, the study of the workbench, designed the different solutions and choose the best. To structure design of a part of the workbench, select the workbench centering way, supporting mode, drive mode. Using the finite element analysis software to design workbench statics analysis and modal analysis.Density method is used to topology optimization design of the workbench,respectively, in which the minimum strain energy and volume than the minimum as the target. According to the result of topology optimization, get the workbench mesa structure form of supporting structure is reasonable.According to bionic structure, the method of bionic prototype, available from the extraction of bionic prototype structure form. Based on the topology optimization of structure form, combined with the bionic prototype structure in the form. After topology optimization of the workbench modeling, and carries on the static analysis and modal analysis, the results and table in front of the topology optimization of finite elementanalysis results, verify the optimization results. |
