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多年来,大模数大质数的圆柱齿轮一般都在滚齿机上采用滚刀切削。然而,用滚刀加工大质数齿轮,机床调整复杂,实际操作也麻烦,效率比较低。尤其是加工质数斜齿轮或质数人字齿轮更感到困难。从七○年起,我们在滚齿机上采用指形铣刀来铣削大模数大质数圆柱齿轮。实践证明,效果良好,现分别就质数直齿轮和质数斜齿轮(包括质数人字齿轮)的加工计算作如下介绍。一、质数直齿轮模数大、质数大的齿轮,其精度要求往往不很高,通常不超过8级精度,因此允许有较大的公差。根据这一特点,便可能在分齿挂轮上寻找新的途径,也就
Over the years, large-modulus, large-mass cylindrical gears have been hobbed on hobbing machines. However, the hob machining large prime number of gears, machine adjustment complex, the actual operation is also troublesome, the efficiency is relatively low. In particular, the processing of helical gears or prime numbers is more difficult. Since 1970, we have used finger-type milling tools on hobbing machines to mill large-modulus, high-mass cylindrical gears. Practice has proved that the effect is good, are now on the quality of the spur gear and the quality of helical gears (including the quality of herringbone gear) machining calculations are described below. First, the quality of the gear module, large number of prime quality gear, the accuracy requirements are often not very high, usually no more than 8 precision, so allow a greater tolerance. According to this feature, it is possible to find new ways to divide the gear wheel, that is