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为了在机床上自动循环地铣削半月形键槽和止动垫圈上的开口槽,有的摩托车厂已采用了一种自动铣头。其详细结构如图所示。在滑轨体1上,安装带有燕尾形导轨的托架2,行星齿轮减速器的壳体4,通过轴承3置于上面。电动机7借助于可调整的张紧装置,固接在托架的顶盖5上,三角皮带8、皮带轮9和10拖动装有刀具12的主轴11旋转。在主轴11中间固定装有减速器的主动中心轮13,它经过配置在导杆15内的双联行星齿轮14,与固定齿轮16相啮合,并经过盖顶17和托架2、中心轮18以及减速器的壳体刚性连接。
Some automakers have adopted an automatic milling head in order to circularly mop the openings in the half-moon-shaped keyway and the retaining washer on the machine tool. The detailed structure as shown. On the slide rail body 1, a carrier 2 with dovetail-shaped guide rails and a housing 4 of the planetary gear reducer are mounted on the upper surface by bearings 3. The motor 7 is fixed on the top cover 5 of the bracket by means of adjustable tensioning device. The V-belt 8, the pulleys 9 and 10 drag the main shaft 11 with the cutter 12 to rotate. A drive center wheel 13 fitted with a decelerator is fixed in the middle of the main shaft 11 and meshes with the fixed gear 16 via a double planetary gear 14 disposed in the guide rod 15 and passes through the roof 17 and the bracket 2 and the center wheel 18 And the reducer housing rigid connection.