Do you know the impact of CNC machining accuracy?

The influence of CNC machining position error on CNC machining accuracy Positioning error refers to the change or deviation of the mutual position between the actual surface, axis or symmetry surface of the workpiece to be processed and its ideal position, such as perpendicularity, displacement, symmetry, etc. In CNC machining, position error usually refers to dead area error. The processing errors caused by transmission clearance and elastic deformation during the processing of CNC parts, as well as the friction that the foreman needs to overcome during processing, are the main reasons for position errors. The open-loop system has a great impact on position accuracy, while the position accuracy of the closed-loop follow-up system mainly depends on displacement detection.

Which CNC machining center is better?

Processing accuracy error caused by CNC machining geometric error. When processing CNC machine tools, due to external factors such as external forces and heat generated during processing, the geometric accuracy of the machine tools is affected, and the parts generated during processing are geometrically deformed, resulting in geometric errors. From a theoretical analysis, the causes of geometric errors of CNC machining machines are internal and external factors. The internal factors that cause machine tool geometric errors refer to geometric errors caused by factors of the machine tool itself, such as the level of the tool table, the level and straightness of the guide rails, and the geometric accuracy of the machine tool tools and fixtures. External factors mainly refer to geometric errors caused by external environment and thermal deformation during processing. During the cutting process, the geometric errors caused by thermal expansion, contraction and deformation of the tool or part will affect the machining accuracy of the machine tool and parts.

Through long-term data analysis and practical operation of part processing, the machining accuracy error caused by CNC machining machine tool positioning can be seen. In CNC machine tools, the position of the machine tool has a great impact on machining accuracy. In terms of structure, the machining error of CNC machining machine tools mainly comes from positioning accuracy, and the machine tool feed system is its main link. The CNC machine tool feed system generally consists of two parts: mechanical transmission and electrical control. In mechanism design, positioning accuracy mainly depends on the mechanical transmission system. Generally, in a closed-loop system, a CNC machine tool can prevent position deviations of the main components of the feeding system such as ball screws, etc. through a positioning detection device. However, for open-loop systems, due to the many influencing factors and complex positioning monitoring conditions, the machining accuracy of CNC machining machine tools is greatly affected.

The above is the reason that affects the accuracy of CNC processing. I hope it can help you. If you want to know more about CNC processing, please consult online or call our service hotline (top right corner of the website). We will wholeheartedly provide you with high quality. Service!