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关于在车床上加工铭牌表以外的各种螺纹,由于各厂车床型号不同,计算方法各异,挂轮附件不同及其他原因等,在车床上不易加工。有时为了解决一种螺纹的加工问题,经过计算后,还须按新的挂轮比添配一个或多个挂轮,才能满足该螺纹的加工需要。这无疑地要增加大量辅助准备时间及工作量,并延长生产周期。车床加工铭牌表以外的螺纹应符合以下要求:(1)计算方法简单,便于车工掌握;(2)不添制新的挂轮;(3)螺距误差小。经过生产实践,我认为选择C618车床加工铭牌表以外的螺纹比较方便。 C618是一种使用较为广泛的车床,备有十一个挂轮,齿数分别为:36、44、45、48、70、80、90、95、96、120、127。诺顿孔位共6个,分别为,16/24、20/24、
On the lathe plate nameplate processing outside the various threads, due to the different lathe models, calculation methods vary, different accessories and other linked to the wheel, etc., in the lathe is not easy processing. Sometimes in order to solve the problem of a thread processing, after calculation, but also according to the new one with more than one or more hanging wheel, in order to meet the processing needs of the thread. This will undoubtedly increase the amount of time and labor required for auxiliary preparation and prolong the production cycle. The thread outside the lathe’s processing nameplate shall meet the following requirements: (1) The calculation method is simple and easy for the lathe to master; (2) No new hanging wheel is added; (3) The pitch error is small. After production practice, I think the choice of C618 lathe machining plaque other than the thread more convenient. C618 is a more widely used lathe, with eleven hanging wheels, the number of teeth are: 36,44,45,48,70,80,90,95,96,120,127. Norton hole a total of 6, respectively, 16/24, 20/24,