通过对横轴式截割头截齿位置的分析 ,应用坐标变换 ,建立了确定齿座位置的数学模型 ,从而在理论上解决了横轴式截割头设计中齿座位置、截割头体尺寸的确定问题 ,也为截割头体加工检验和横轴式截割头的计算机辅助设计提供了理论手段 ,经实践证明所建模型是正确的 ,计算方法是可行的 . Based on the analysis of the position of the pick of the horizontal axis cutting head and the application of coordinate transformation, a mathematical model for determining the position of the seat is established, which can theoretically solve the problem of the position of the seat, the cutting head The problem of determining the size also provides a theoretical method for the inspection of the cutting head and the CAD of the horizontal-axis cutting head. The practice proves that the model is correct and the calculation method is feasible.