我厂产品中有一个较为特殊的矩形花键轴,在使用中该矩形花键轴需要在转动过程中与矩形花键套进行结合,所以该花键轴端需倒圆(见图1)。但该工件较长(全长610mm),超过了现有齿轮倒角机床的允许范围,不能利用现有齿轮倒角机床进行倒圆。为此,我们分析了该花键轴的使用要求,认为它的工作状态与一般变速箱中滑移齿轮的工作状态很接近,如果在花键轴端制成类似滑移齿轮端面上的倒角形 I plant products have a more special rectangular spline shaft, in use, the rectangular spline shaft needs to be combined with the rectangular spline sleeve during rotation, so the spline shaft end to be rounded (see Figure 1). However, the long workpiece (610mm in total length) exceeds the allowable range of existing gear chamfering machines and can not be rounded using the existing gear chamfering machine. To this end, we analyzed the use of the spline shaft requirements, that its working condition and the gearbox in general gearbox work very close to the state, if the spline shaft end made similar to the chamfered gear end face