This article mainly describes the transformation of the XA6140 milling machine feed device, and explains the basic principles of -1PG and the specific application of Yaskawa servo in the transformation. [Keywords] PLC position control module Speed control Position control I. Introduction There are as many as 9 milling machines in our company\'s mechanical processing. Due to the relatively long use time, the mechanical shift handle is worn, the clutch is easy to slip, and the copper brush is easy to wear. It often causes no work feed, which causes a long maintenance and downtime, which has a serious impact on production. Using YASKAWA (Yaskawa) servo controller and position control module (-1PG) to form a control system, the left and right rapid movement and work feed of the machine tool are completed by this system, so that the intermediate transmission function of the clutch in rapid and work feed can be removed, and the speed change function of the gearbox is also cancelled. II. Working principle of machine tool The action process of the XA6140 milling machine worktable can be roughly divided into three steps: rapid feed → work feed → rapid return to the original position. The following figure is a simple transmission diagram of the worktable feed:
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