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大模数圆柱齿轮的数控铣齿加工具有机床运动简单、加工效率高的优点。为了进一步提高大模数圆柱齿轮的粗铣加工效率,提出了一种基于双刀盘铣刀的高效铣齿粗加工方法。一方面,建立双刀盘铣削的齿槽余量数学模型,得到双、单刀盘铣削方式的齿廓余量与齿轮模数之间变化规律。另一方面,综合考虑双、单刀盘铣削方式的加工时间成本、刀具损耗成本和后续精加工的刀具损耗成本,建立两种铣削方式的铣削成本数学模型,分析铣削成本与齿轮模数之间的关系。最后,通过铣削加工实验、各轴受力和切削转矩实验等,验证了双刀盘铣齿加工方式可以有效地解决铣齿粗加工问题。
Large modulus cylindrical gear CNC milling processing has the advantages of simple machine movement, high processing efficiency. In order to further improve the efficiency of coarse milling of large-modulus cylindrical gear, a high-efficiency milling cutter roughing method based on double-cutter milling cutter is proposed. On the one hand, the mathematical model of the cogging allowance of double-cutter milling is established, and the variation regularity between the allowance and gear modulus of double and single-cutter milling is obtained. On the other hand, considering the processing time cost, tool wear cost and subsequent tool wear cost of single-disc milling method, two mathematical models of milling cost are established, and the relationship between milling cost and gear modulus relationship. Finally, through the milling experiment, the stress of each shaft and cutting torque experiment, it verifies that the double-cutter milling processing method can effectively solve the problem of milling tooth milling.