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我厂接到一批匈牙利却贝尔750汽车齿轮的加工任务,其中有几个零件的齿形是斜向齿形,形状如图1所示。要加工此种零件的斜向齿形,利用现有滚齿机和插齿机很难加工,故必须对机床进行改造。如采用Y54插齿机来加工斜向齿形,必须将连接刀架的床身部分倾斜成α角度。这样改装,工程较大,对于中小批量生产不太合算。如采用滚齿机来加工斜向齿形,必须要有斜向走刀。经过分析,这种斜向齿形可以在Y38滚齿机上加工,仅仅作很小改进即可。Y38滚齿机快速进退刀时,立柱的径向走刀和垂直走刀可同时进行,两种走刀的合成便为一种斜向走刀(如图2所示)。如能任意改变垂直走刀和径向走刀的速度,便可加工出任意倾斜的斜向齿形。根据这种原理,我们对Y38滚齿机进行了
I received a factory in Hungary, but the Bell 750 car gear processing tasks, including several parts of the tooth profile is oblique tooth shape shown in Figure 1. To process the oblique tooth profile of such parts, the use of existing gear hobbing and gear shaper is difficult to machine, it is necessary to transform the machine. Such as the use of Y54 gear shaper machine to process oblique tooth profile, the body must be connected to the tool holder tilted at an angle α. This modification, a larger project, for small and medium batch production is not cost-effective. Such as the use of hobbing machine to process oblique tooth profile, you must have a diagonal knife. After analysis, this skew profile can be machined on a Y38 gear hobbing machine with only minor improvements. Y38 hobbing machine rapid advance and retreat knife, the vertical and vertical column knife walking can be carried out simultaneously, the synthesis of two kinds of walking is a kind of oblique walk (Figure 2). If you can arbitrarily change the speed of vertical and radial pass, you can work out any inclined inclined tooth. According to this principle, we Y38 gear hobbing machine