最近,我厂在生产一台专用机床的过程中,要制造两件齿轮段(见图1)。齿轮段参数: 端面模数 m_(?)=2.5 齿数 z=602 法面齿形角 a_(on)=20°分度圆直径 d=1505 分度圆柱螺旋角β=3°10’17”螺旋方向右精度等级 8-DcJB162 由于齿轮外径大,而所用部份只是其中一段,我厂又没有大型的滚齿机床,因此,我们是用一段圆弧坯料在X62W万能铣床上采用简易方法进行加工,取得了既省钱又省工的较好效果,现将铣齿方法介绍如下: 齿圈的径向定位:我们做了一个如图2所示的定位夹具,加工时,把工件固定在夹具上,松开螺钉螺 Recently, I plant in the production of a machine tool for the process, to create two pieces of gear (see Figure 1). Gear section parameters: End face modulus m _ (?) = 2.5 Number of teeth z = 602 Surface angle a_ (on) = 20 ° Dimensioning circle diameter d = 1505 Indexing cylinder helix angle β = 3 ° 10’17 " Direction Right Accuracy Level 8-DcJB162 Since the outer diameter of the gear is large and the part used is only one of them, our factory does not have a large gear hobbing machine. Therefore, we use a circular arc blank to process the X62W universal milling machine in a simple way, Made both save money and work better results are now introduced gear milling method is as follows: Ring gear radial positioning: We made a positioning fixture as shown in Figure 2, the workpiece, the workpiece is fixed to the fixture , Loosen the screws