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一、概况近年来,机械制造工业的发展对齿轮的承载能力、寿命、精度、齿面光洁度和啮合噪音等方面提出了更高的要求。因此,在机器中越来越多地采用渗碳钢齿轮。但是,这种材料在加工工艺性方面也有它的缺点。例如,热处理淬火后变形较大。一般来说淬火后齿轮的精度下降1～2级,而在一些结构较为复杂的齿轮,其淬火后精度损失往往更甚。齿轮淬火后纠正变形的传统方法为磨削齿面;一般来说磨削效率低,齿面容易发生“热裂”。目前国内还没有生产圆锥齿轮磨削机床,只有少数单位进口了这种设备。因此,一
I. Overview In recent years, the development of machinery manufacturing industry put forward higher requirements on the bearing capacity, life expectancy, precision, tooth surface finish and mesh noise of gears. Therefore, more and more carburizing steel gears are used in machines. However, this material also has its drawbacks in terms of processability. For example, heat treatment after quenching greater deformation. Generally speaking, the precision of the gears after quenching is reduced by 1 ~ 2 grades. However, in some complicated gears, the precision loss after quenching is often even worse. The traditional method of correcting deformation after gear quenching is to grind the tooth surface; in general, the grinding efficiency is low, and the tooth surface is prone to “hot cracking”. At present, there is no domestic production of bevel gear grinding machine, only a few units imported this equipment. So, one