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内齿轮加工一般都采用插齿法,但在重型机器制造行业中的大内齿轮加工,由于没有足够大的插齿机,或为了提高齿轮的加工精度,而不得不采用滚齿法加工。目前,国内加工大内齿轮使用蜗形滚刀和内齿轮滚切刀。这两种刀具均属定装专用刀具,由于对刀困难。加工精度难以保证。本文提出一种新型的球形滚刀,是按展成原理工作的通用滚刀,一把滚刀可以加工同模数的大于一定齿数的直齿或斜齿内齿轮,且对安装对刀也无特殊要求,使用方便。本文所述研制的球形滚刀采用铲齿结
Internal gear processing are generally used gear shaper, but in the heavy machinery manufacturing industry in the internal gear processing, because there is not enough gear shaper, or in order to improve the gear machining accuracy, and had to use gear hobbing process. At present, the domestic processing large internal gear with spiral hob and internal gear hob cutter. These two kinds of knives are fixed-purpose tool, due to difficult knives. Processing accuracy is difficult to guarantee. In this paper, a new type of spherical hob is proposed, which is a universal hob that works according to the principle of expansion. A hob can process straight or bevel gears with a certain number of teeth with the same modulus, Special requirements, easy to use. The spherical hob developed in this paper uses a shovel tooth knot