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在罗茨式真空泵或鼓风机的制造中,带螺旋槽转子的加工是一个关键问题。实践证明,在专用机床或万能铣上用成形铣刀切削加工效率较高,质量也符合要求,并有可能实现组合机床自动线。成形铣刀型线的计算比较复杂,过去多按照引进样机用石膏复制模型刀具,制样板。本文试图介绍已知转子端面型线和螺旋参数,用数学分析理论进行推导、计算成形铣刀轴向齿形的方法和本厂罗茨式真空泵成形铣刀的制造工艺,供同行业参考,并请批评指正。
In the manufacture of a Roots-type vacuum pump or blower, the machining of a rotor with helical grooves is a key issue. Practice has proved that in a special machine or universal milling milling cutter with a high efficiency, quality is also in line with the requirements, and may achieve a combination of automatic machine line. Molding cutter line calculation is more complicated, in the past more than the prototype to use the prototype model to copy the model tool. This paper attempts to introduce the known rotor profile and helical parameters, using mathematical analysis theory to derive, calculate the axial milling cutter forming method and our Roots-type vacuum forming cutter manufacturing process for the same industry reference, and Please criticize correction.