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Discussion on the causes of unstable machining accuracy of cnc lathe manufacturers
The closeness between the measured results and the true values introduced by the NC lathe manufacturer, and the high measurement accuracy, indicate that the smaller the error is, the less the average value of the measured data deviates from the true value, but the error is occasionally unclear due to scattered data. The size of the workpiece is correct, but the surface finish is poor: the tool tip is damaged and not sharp, the CNC lathe has resonance, the placement is not stable, there is crawling, and the processing technology is poor. If the tool is not sharp or worn, it should be replaced in time. If the resonance or placement of the CNC lathe is not smooth, adjust the horizontal position and lay a foundation.

Taper reducer produced by the workpiece: the horizontal position of the CNC lathe is not adjusted properly. When turning the long axis, the material used is hard and the cutting tool is deep, causing the phenomenon of tool yielding. The tailstock ejector pin is not concentric with the main shaft. The leveler is used to adjust the levelness of the CNC lathe, fix the lathe and improve its toughness. Select a reasonable process mode and suitable cutting for feeding to avoid the force on the tool giving way to the tool. At the same time, adjust the tailstock.

The phase light of the driver is normal, and the size of the workpiece processed is sometimes large and sometimes small: after the carriage runs for a long time, the screw rod and bearing are worn, and the repeated positioning accuracy of the tool rest has deviation problems during the long use. The carriage can return to the starting point of processing accurately each time, but the size of the processed workpiece still changes. It is necessary to use the dial indicator to lean against the bottom of the tool rest, edit the fixed cycle program through the system, check the repeated positioning accuracy of the carriage, adjust the gap between the screw rods, and replace the bearing. Check the repeated positioning accuracy of the tool rest with a dial indicator.