CAJ | 학술논문

以 TX1600G 数控镗铣加工中心为例，主要研究在移动热源施加条件下，不同的进给速度以及冷却液流量对系统热平衡的影响。为得到滚珠丝杠在实际工作中的状态，利用 ANSYS 建立丝杠的简化三维模型，施加移动热源来模拟螺母和轴承的传动热量，从而得到丝杠的温度模型，建立热误差补偿模型。结果表明，进给速度的增加可以缩短系统的热平衡时间，但热平衡温度有所升高；冷却液可以有效地降低热平衡温度和缩短热平衡时间。热误差模型建立和温度场分析，为系统的热补偿提供必要的理论依据。
이 TX1600G 수공당선가공중심위례，주요연구재이동열원시가조건하，불동적진급속도이급냉각액류량대계통열평형적영향。위득도곤주사강재실제공작중적상태，이용 ANSYS 건립사강적간화삼유모형，시가이동열원래모의라모화축승적전동열량，종이득도사강적온도모형，건립열오차보상모형。결과표명，진급속도적증가가이축단계통적열평형시간，단열평형온도유소승고；냉각액가이유효지강저열평형온도화축단열평형시간。열오차모형건립화온도장분석，위계통적열보상제공필요적이론의거。
This paper takes TX1600G CNC bor-ing and milling machining center as example and mainly studies the impact of different feed speed and coolant flow on the system heat balance,under the conditions of the moving heat source.To un-derstand the ball screw in actual working condi-tions,ANSYS was first used to establish a simpli-fied three dimensional model of the ball screw, and then the heat source was moved to simulate heat transmission on nut and bearing,so the tem-perature model and thermal error compensation model of lead screw are established.Results show that the increase of feed speed can shorten the time for heat balance of the system,but the thermal e-quilibrium temperature was increased;coolant flu-id can effectively reduce the thermal equilibrium temperature and the thermal equilibrium time. Thermal error modeling and the analysis of tem-perature field also provide necessary theoretical ba-sis to the thermal compensation of the system.