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将齿轮的轧制成形与传统的楔横轧原理相结合,在轧制成形轴类零件的同时实现齿形部分的轧制成形,不仅可以实现齿轮轴零件的近净成形,而且可以提高齿的承载能力及使用寿命.在轧制齿形部分的过程中,对轧件的进给采用分段阶梯式进给方式,轧件在模具的带动下以自由分度方式进行轧制.通过数学模型和实验,给出了轧制各阶段模具齿距的计算方法和变化规律、模具的齿形设计方法、模具对轧件首次分度时最小进给量的计算方法以及轧制各阶段进给量的变化规律.用De-form-3D数值模拟仿真软件模拟轧制过程,在H630轧机上轧制出模数m=2,齿数z=20,压力角a’=20°的齿轮轴上的齿形,实验证明在楔横轧机上轧制齿轮轴上的齿形是可行的.
The gear rolling and forming the traditional cross wedge rolling principle combined with the rolling of the shaft parts to achieve the same time, the profile of the rolling forming, not only to achieve near-net shape gear shaft parts, but also can improve the tooth Bearing capacity and service life.In the process of rolling the toothed part, the feed of the rolling stock is divided by stepped feeding mode, and the rolling stock is rolled by the free indexing mode by the mold.Through mathematical model And experiment, the calculation method and variation rule of die pitch in each stage of rolling are given, the tooth profile design method of die, the calculation method of the minimum feed rate when the die is on the first indexing of the rolling stock and the feed rate of each stage The rolling process was simulated by De-form-3D numerical simulation software and the H630 rolling machine was used to roll the teeth on the gear shaft with the modulus m = 2, the number of teeth z = 20 and the pressure angle a ’= 20 ° It is proved by experiment that it is feasible to roll the tooth profile of the gear shaft on the cross wedge rolling mill.