Seven Methods for Verifying CNC Machine Tool Positioning Accuracy

The positioning accuracy of CNC machine tools is a critical measure of the precision achieved when the coordinate axes of the machine tools are controlled by the CNC device. This accuracy essentially reflects the machine tool's ability to achieve precise movements. In contrast to manually fed ordinary machine tools, where positioning accuracy is primarily influenced by reading errors, CNC machine tools rely on digital program instructions for their movements, making their positioning accuracy contingent upon the CNC system and mechanical transmission errors. This distinction underscores the importance of understanding and evaluating the factors that contribute to the positioning accuracy of CNC machine tools, as it directly impacts the quality and reliability of the machining processes they perform.


A CNC machine tool, short for digital control machine tool, is an automated machine equipped with a program control system. This system can process programs specified by control codes or other symbolic instructions and convert them into coded numbers. Nanjing Fourth Machine Tool Co., Ltd. inputs these programs into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to manage the movement of the machine tool, automatically processing parts according to the required shape and size outlined in the drawing.

The movement of each part of the machine tool is controlled by the CNC device. The accuracy of each part's movement directly affects the precision of the processed parts. Therefore, the accuracy of linear motion positioning is a crucial aspect to consider.

Learn more: https://machining-cnc.com/seven-methods-for-verifying-cnc-machine-tool-positioning-accuracy/

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