How to adjust the CNC lathe skateboard

There is a double nut where the feed table and the screw are linked. Adjust the double nut. Tighten the adjustment nut appropriately. Then the new backlash is measured with a dial indicator, and the obtained value is entered into the parameters of the system to control the backlash according to the requirements specified by the system. 1. First determine the type of lead screw, generally speaking, lead screw is divided into T-shaped lead screw and ball screw. Now most of them are ball screws, but there are also some low-end CNC lathes that use T-screws. Let's take ball screw alignment as an example: 2. Determine the cause of the formation of the lead screw gap, if the silk mother is loose, it can be properly adjusted, and the adjustment method is as follows: The silk mother is a two-stage type with a pre-tensioning gasket in the middle, and the two segments of the silk mother can be fixed together with the silk mother; For example, lead screw clearance due to wear should be careful, because wear is not uniform wear. It is possible that the commonly used part is more worn, and the non-use part is lightly worn. If this is the case, the pretensioned gasket can only be modified according to the situation and compensated by the lead screw compensation parameters.