摘要
针对高速纺纱锭子弹性管结合件加工时易变形、同轴度精度差等制造工艺瓶颈,采用金属切削有限元分析软件Advant Edge建立了弹性管支撑孔镗削工步的有限元分析模型,考察并揭示了单个工艺参数对切削力和刀具温度的影响规律,发现背吃刀量对切削力的影响最大,切削速度对切削力的影响最小,进给量介于二者之间。而刀具温度将随着切削速度、背吃刀量及进给量的增加而升高。基于以上规律和减少弹性管加工变形、提高加工效率等目标,进行了工艺参数的综合优化设计,即适当减小背吃刀量、增加进给量和切削速度的优化策略。弹性管支撑孔的工艺参数优化设计和同轴度误差综合分析结果表明,根据高速纺纱锭子弹性管结合件的结构参数和精度要求等,合理选择和有效组合工艺参数是改善该类产品制造工艺瓶颈的重要途径之一。
Specific to the bottleneck in manufacturing process such as proteiform and low precision in coaxiality in machining assembly for elastic tube of high-speed spinning spindle,an infinite analysis model for support holes boring phase of the elastic tube is estalflished with metal cutting software A dvant Edge in order to explore and reveal the impact of each technological parameter upon cutting forces and machine tool temperature.It is found that back engagement impact the most on cutting forces,cutting velocity the least,while feed is somewhere in-between.However cutting tool temperature increases with the increase of back engagement,feed and cutting velocity.Based on the above comprehen.sive optimization design for technological parameters is conducted in order to reduce deformation of high-speed spinning spindle elastic tube, improve m, achining efqciency. That is to say an optimized strategy of irtcreasingfeeding and cutting velocity by reducing back engagement is adopted.The results regarding optimization design and error emalysis show that reasonable selection and efficient combination of technological parameters is one of the important methods to improve technology of similar products in accordance with structure parameters and accuracy requirements of high-speed Spinning spindle elastic tube.
出处
《机械设计与制造》
北大核心
2011年第12期188-190,共3页
Machinery Design & Manufacture
基金
上海市重点学科建设项目(B602)
关键词
切削力
刀具温度
有限元分析
参数优化
同轴度控制
Cutting force
Cutting tool temperature
Finite element analysis
Parameter optimization
Coaxiality control
