在普通车床三轴滑移切螺纹进给系统中,采用更换挂轮的方法来变换螺纹种类,虽然结构比较简单,能获得较多的附加螺纹,但在操作方面不如双轴滑移来得方便,从而影响三轴滑移公用齿轮机构的进一步推广。 为了满足普通车床在操作方便性方面较高的要求,本文提出几种螺纹种类变换机构的 In the common lathe triaxial sliding thread feeding system, the method of changing the hanging roller is used to change the thread type. Although the structure is relatively simple, more additional threads can be obtained, but the operation is not as convenient as the double-axis sliding, Thus affecting the three-axis sliding common gear mechanism for further promotion. In order to meet the high requirements of ordinary lathe in the convenience of operation, this paper presents several types of thread change mechanism