齿条(图1)是插齿机上的重要零件之一。热处理经渗碳淬火,要求硬度大于HRC56,弯曲变形小于0.40毫米,两端内孔椭圆度应在所留磨量(0.6毫米)之内。因为热处理后变形数量很多,因此,校直工作量大。我们对齿条的校直方法进行了摸索,最后采取了水冷凹面校直法,取得了很好的效果。现介绍如下,供大家参考。 The rack (Figure 1) is one of the important parts on the gear shaper. Heat treatment by carburizing and quenching, the required hardness greater than HRC56, bending deformation of less than 0.40 mm, both ends of the hole ovality should be in the amount of grinding (0.6 mm) within. Because of the large number of deformation after heat treatment, therefore, straightening the workload. We explored the method of alignment of the rack, and finally adopted the water-cooled concave alignment method and achieved good results. Now introduced as follows, for your reference.