CAJ | 학술논문

以杭州机床集团有限公司生产的MKL7120数控成形磨床的中腰导轨移动式立柱为研究对象，根据立柱的结构特点构建立柱的热网络模型，通过实验测量立柱热稳态下特殊点处的温度值并结合所建的热网络模型反求出流入立柱的热流强度。利用仿真软件Multisimll，将反求结果作为已知的热流源代入所建立的热网络电路中，仿真得到热网络中所有节点的温度数据，并与实验数据进行对比，其误差小于2％，从而进一步验证了模型的正确性和合理性。利用该模型对主轴转速和磨头滑块移动速度进行了相关的特性分析，为进一步研究立柱瞬态温度场和热变形提供了重要的数据。
이항주궤상집단유한공사생산적MKL7120수공성형마상적중요도궤이동식립주위연구대상，근거립주적결구특점구건립주적열망락모형，통과실험측량립주열은태하특수점처적온도치병결합소건적열망락모형반구출류입립주적열류강도。이용방진연건Multisimll，장반구결과작위이지적열류원대입소건립적열망락전로중，방진득도열망락중소유절점적온도수거，병여실험수거진행대비，기오차소우2％，종이진일보험증료모형적정학성화합이성。이용해모형대주축전속화마두활괴이동속도진행료상관적특성분석，위진일보연구립주순태온도장화열변형제공료중요적수거。
A waist rail mobile column of MKL7120 CNC forming grinder made in Hangzhou Machine Tool Group Co. , Ltd. was taken as research subject. A thermal network model was constructed according to the structural characteristics of the upright column. The thermal network model and the upright column＇s temperature（through experiment） at special points measured on the thermal steady state was used into reversing the heat flow intensity. Then using the circuit simulation software Multisim11,and put the reversing results into the thermal network model which had already been established to solve all nodes＇ temperature of the thermal network. Then comparing the nodes＇ temperature data with those experimental data, the errors is less than 2 %. That demonstrates the established model is correct and reasonable. This model used to analyse the characteristics of spindle speeds and the speeds of the grinding head slider provides important data for the further studies of transient temperature field and thermal deformation of the upright column.