一种新型齿轮冷滚打工艺分析
Analysis of Cold Roll-beating for a New-type Gear

提出了一种基于展成原理的齿轮冷滚打方法，并对其进行运动学分析，得到了滚打轮与齿坯之间的传动比关系。为了避免冷滚打过程中打轮与齿坯的干涉问题，给出了安装角的计算方法；根据塑性成形中的体积不变原则，对渐开线齿轮冷滚打加工时的毛坯直径进行计算。参照滚刀的设计方法，完成了打轮结构的初步设计，给出了打轮有效齿数的计算方法；进行了齿轮冷滚打试验，初步验证了该工艺的可行性。
A new-type gear cold roll-beating technology based on the generative principle is proposed, and the transmission ratio between the roller and the gear blank is given by using the kinematics analysis. To avoid the interference between the roller and the gear blank in the cold roll-beating process, the calculation method of the setting angle is given. Based on the constant-volume principle for plastic deformation, the blank diameter in cold roll-beating of involute gear is determined. With reference to the hob design method, the roller structure is designed and the effective teeth number of the roller is given. The roll-beating experiments of gear cold are carried out and the feasibility of the present method is demonstrated