当前平面工件磨削热模型研究较多，但不能应用于齿轮类曲面零件的磨削计算。为此将移动热源法与映像法相结合，在齿轮渐开线圆弧拟合的基础上，建立了大平面砂轮磨齿加工的解析热模型，可用于磨削时齿轮的温升分布计算。同时，在有限元软件ANSYS中对磨齿过程进行了仿真，并将解析热模型和有限元热模型的准稳态温升分布进行比较分析。结果表明，两者的温升分布只在接触区及其与非接触区的交界处存在一定的误差，总体结果吻合较好。其解析热模型可用于齿轮类曲面工件加工时的温升分析。

At present，there are many planar workpiece grinding thermal models. However，they cannot be applied to the calculation of the tooth-like surface grinding. Therefore，based on the gear involute arc fitting，the moving heat source method and the imaging method are combined in this work to deduce the analytical thermal model of grinding teeth with large flat wheel，which can be used to calculate the temperature of grinding gears. The simulation of grinding process is made based on ANSYS and compare to the established quasi-steady-state analytical thermal model. The comparison results show that the value of grinding temperature predicted by numerical model has well agreement with the analytical model and some errors exist in the contact area and the junction between contact area and non-contact area. The deduced analytical thermal model can be used to analyze the temperature of processing tooth-like curve workpiece.

国际科技支撑计划资助项目（2012BAF13B00）