The accuracy of CNC machine tools can be divided into static precision and dynamic precision. The static precision is detected without cutting. It includes the geometrical accuracy and positioning accuracy of the machine tool, reflecting the original precision of the machine tool. The dynamic precision refers to the precision achieved by the machine tool under the actual cutting conditions. It is not only related to the original manufacturing precision of the CNC machine tool, but also related to the environmental conditions during processing and the specific process system, such as the fixture during machining. The error between the tool and the workpiece itself, the force velocity vibration during cutting, etc. all have an adverse effect on the machining accuracy of the machine tool. The accuracy of the machine tool is measured by the size of the error. The focus of the CNC machine tool producers and users on the precision requirements of CNC machine tools is different. It is very difficult for machine tool manufacturers to ensure the machining accuracy of the workpiece. Generally, the original manufacturing precision of the machine tool can only be guaranteed. The error source analysis of CNC machine tools can be divided into the following types of machine tool's original manufacturing precision. The error caused by the cutting force caused by the cutting force, the vibration error of the machine tool, the measurement error of the detection system, the random error caused by external disturbance, and other errors. The above various error sources have different weights on the machining accuracy of CNC machine tools. According to the research results of the United States and other countries, the error weights are distributed. The weight of the error varies with the type of random bed or the working state. For example, the load error of a large machine tool accounts for a large proportion. According to the characteristics and nature of the error, the error of the CNC machine tool can be divided into large categories, namely system error random error and coarse error. The system error of CNC machine tools, such as the static error of the machine tool, has repeated mechanical and electronic properties. It can be corrected and compensated by off-line detection and open-loop compensation technology to reduce it. However, the random error has randomness, and the method of on-line detection and closed-loop compensation must be adopted to partially eliminate the influence of the error with the processing error on the machining accuracy of the machine tool. (Finish) Nitrogen Generator For Chemical Nitrogen Generator For Chemical,Nitrogen Generator Stable,High Cost Performance Nitrogen Generator,Wonderful Performance Nitrogen Generator Jiangsu Minnuo Group Co.,Ltd , https://www.mngroupcn.com