【摘要】 针对现有加工方法受加工曲面复杂性影响的局限性 ,通过引进刀具的侧倾角参数 ,讨论了一般位置下的成型盘铣刀加工螺旋曲面的铣削加工法 ,分析了刀具与工件作共轭运动时的接触点轨迹的几何特性 ,并给出了一般位置下的成型盘铣刀加工的计算公式和成型刀加工中产生干涉的一个判别方法。从而扩大了成型盘铣刀加工螺旋曲面的种类 ,避免刀具与工件的干涉现象 ,克服了现有成型刀加工方法的局限性 ;同时为五坐标数控加工螺旋曲面提供了合理的接触点轨迹 ,提高螺旋曲面加工的精度。并通过实例说明了这一方法的合理性和有效性。更多还原

【Abstract】 The geometric characteristics for the general course of machining helicoids using a formed milling cutter was discussed. The characteristics of the contact line for the conjugate mation of the cutter and the machined part were analysed. Further more, a method was presented to check gouging between the cutter and the workpiece. In this paper, two aspects of the milling process were considered: First, the machining types of helicoids using a formed milling cutter can be expanded while avoiding gouging. Second, the reasonable locus of the contact points can be given for five axis NC machining and the machining precision can be improved.更多还原