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图1～3表示的有关铲形轮等概念是以范成法加工锥齿轮所采用全部方法的基础。加工中,卤坯沿铲形轮滚动。实际上,铲形轮是假设的,它靠运动的刀具切削刃在空间模拟轮齿。
The concepts of spade wheels shown in Figures 1 to 3 are the basis for all the methods used to process bevel gears. Processing, along the shovel-shaped roller wheel rolling. In fact, the shovel wheel is assumed to rely on the cutting edge of the moving tool to simulate gear teeth in space.