这里介绍一种新的切齿方法,即用成叠盘形铣刀滚齿。此法可利用现有滚齿机,毋需装备专用部件和机构。图1表示这种切齿方法的原理:坯件1安装在机床工作台上,刀具2安装在主轴上,同时刀具轴线相对坯件端面倾斜一θ角。在加工过程中,坯件和刀具相应以角速度ω_1和ω_0回转,同时刀具平行坯件轴线作送进运动s。坯件和刀具的角速度应满足关系式ω_1/ω_0=z_0/z_1。式中z_1和z_0分别为被切齿轮和铣刀齿数。此时θ=αrcsin[D_1z_0/(D_0z_1)],式中D_1和D_0相应为被切齿轮和刀具的基圆直径。盘形铣刀应具有同样的齿数,且前面处在同一平面上。如果头一个条件不能满足,便会破坏连续分度过程,结果不能获得具有给定齿数的齿轮;如果第二 Here is a new method of gear cutting, which involves hobbing with a stack of disc-shaped cutters. This method can use the existing hobbing machine, without the need for special components and institutions. Figure 1 shows the principle of this method of cutting: blank 1 is mounted on the machine table, the tool 2 is mounted on the spindle while the tool axis is inclined at an angle θ relative to the end face of the blank. During machining, the blanks and tools rotate at the angular velocities ω_1 and ω_0, respectively, while the parallel axes of the blanks are fed in. The angular velocity of the blank and the tool should satisfy the relation ω_1 / ω_0 = z_0 / z_1. Where z_1 and z_0 were cut gear and cutter tooth number. Θ = αrcsin [D_1z_0 / (D_0z_1)], where D_1 and D_0 correspond to the basic circle diameter of the gear to be cut and the tool, respectively. Disc cutter should have the same number of teeth, and the front in the same plane. If the first condition can not be met, it will undermine the continuous indexing process, the result can not be obtained with a given gear number of gears; if the second