【摘要】 为了对滚齿机刀架系统进行更好地优化,提升其切削性能,针对一台滚齿机主轴刀架,计算了刀架生热、传热以及散热关系,并在考虑结合面热阻的基础上,进行了稳态热分析和瞬态热分析,并将分析结果作为热载荷施加于刀架各个部位,计算了各部件的热变形。仿真结果表明:轴承和切削系统是该机床的两大热源,能引发较为明显的热位移;刀杆和滚刀的轴向热位移对加工精度的影响较大,应该采取补偿措施予以抵消。更多还原

【Abstract】 In order to better optimization the turret system of hobbing machine and improve the cutting performance,aim at a hobbing machine turret,the relationship among heat generation,heat transfer and heat dissipation of the turret were built,the steady state analysis and transient analysis were analyzed by considering the contact resistance between joint surfaces,and the thermal displacement of each components were calculated with the analysis result mentioned above were taken as thermal load. The simulation results show that the bearings and cuttingsystem are two main heat sources of the hobbing machine used in the research,which can cause an obvious displacement on the hobbing arbor and hobbing cutter. The axial displacement is a big influence factor to the hobbing accuracy,therefore,the compensation method shall be adopted.更多还原