T320落地镗溜板箱结构应力分析与设计

Analysis and design for structural stress of T320 floor boring apron

为了解决300t以上特大型焊接件、特大型轧机的粗加工难题,急需大型、超重型落地铣镗床。T320数显落地镗就是在这种背景下研制的。通过对机床立柱、热平衡系统、惯量参数匹配与主轴溜板箱结构等内容的研究,特别是将机床立柱设计成封闭式截面的焊接结构,并在其结构内注入防震填料,改变了传统的铸件结构设计;再通过对溜板箱与立柱和轨道的接触状态云分析,对其结构进行优化;采用温度补偿系统保证轴承热系统平衡,满足了特大型件的粗加工要求,其主要设计思想彰显出大型、超重型机床设计的特色。

In order to solve rough machining problem of the above 300 tons large and super large components of mill,large,ultra-heavy boring and milling machine is required in urgent.Therefore,T320 digital display type boring machine was developed in this context.Through studying the machine column,the thermal equilibrium system as well as the inertia parameters matching and the spindle apron structure,the machine column was designed particularly into a closed cross-section of welded structures with the shock filler being injected into,which may change the traditional casting structural design;Then through cloud analysis on the contact state of the apron with columns and track,the structure was optimized;Temperature compensation system was adopted to ensure the heat balance of bearing system,and meet the extra requirements for rough machining large pieces,which main design highlights the characteristics of large,heavy machine design.