The Lightweight Design Of Finite Element Technique Based On CA6140Lathe Bed

Since the domestic research in1972, the first CA6140ordinary lathe,CA6140ordinary lathe has been done for the domestic traditional models,widely used in various types of machinery factory production needs andoccupation school metalworking practice and basic operation of machinelearning, is the largest domestic production models. For the design of CA6140ordinary lathe, the traditional models are considered in the design process isdynamic and static performance and the performance indexes meet the workin process, and the machine’s design, such as the structural optimization, thelightweight considerations not. But in recent years, with the increasingawareness of environmental protection and natural resources is scarce, theefficient use ofenergy, resources and reduce pollution in the productionprocess plays a more and more important role in the design of machine tools.Machine tool assupplies large family, the material directly affects the rawmaterial for China’s overall level of consumption, the state and thecommunity attaches great importance to. Therefore, research on lightweigh tmachine, especially such as CA6140in lightweight annual output reachedmore than25%of the machine tool, is of great importance to reduce thesustainable development of iron and steel resources in our country and theconsumption of machine tool industry.The main supplies part of CA6140ordinary lathe are the bed, the bed isan important component of CA6140lathe, the structure size and weight islarger,the static and dynamic stiffness, shock resistance and thermal stabilityplays a crucial role in the whole machine tool. Therefore, CA6140ordinary lathe bedas the research object, using CATIA to establish the model, throughthe finite element analysis software ANSYS, to the static and modal analysison the model, the bed in the first ten order because of a frequency and modeof vibration. Through the analysis of the adjustment of two side bed thickness,finite element analysis and comparison of the improved bed. After theoptimization, the CA6140bed can still maintain a better dynamic and staticcharacteristic and rigidity, machine tool bed weight from the original441KG,to adjust to the current402KG, overall weight loss reached8.84%, the idealstate of light.Through the static analysis to bed by ANSYS, optimized structure body,achieve the purpose of lightweight by two side adjustment bed thickness.From the performance aspect, the iron around9000yuan per ton price, eachmachine can save700yuan. The overall design is applied to the CA6140inthe ordinary lathe in the maximum application tool, not only increase theeconomic efficiency, saving materials, reducing energy consumption andreduce pollution, provide a theoretical basis for more improvements in othersimilar types of ordinary lathe.