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近几年来,滚铣大齿轮用的机床和刀具有了很大的发展,因此目前加工大齿轮的方法和所使用的刀具也相应地有所变化。大齿轮的概念应理解为直径大于1000毫米,模数在10毫米以上的齿轮。除了低精度的齿轮以外,所有的大齿轮都要经过二次或多次的切齿加工,也就是要分成粗切和精切。有很多种刀具可用于粗切和精切,此外还有新的切齿方法,如精滚淬硬齿轮和调质齿轮。因此从多种可能中来选择最佳的切齿方法和刀具还是有一定的困难的。此外,
In recent years there has been a great development in machine tools and knives for hobbing large gearwheels, and the methods for the machining of gearwheels and the tools used at the moment have also been changed accordingly. The concept of a big gear should be understood as a gear with a diameter of more than 1000 mm and a modulus of more than 10 mm. In addition to the low-precision gear, all the large gear to go through two or more times of gear cutting, that is, to be divided into rough and fine cut. There are many kinds of tools for roughing and finishing, as well as new methods for cutting teeth, such as precision-hardened gears and quenched and tempered gears. It is therefore somewhat difficult to choose the best method and tool for cutting teeth from a variety of possibilities. In addition,