The effect of position error in the processing of CNC lathes on processing accuracy:

The position error refers to the actual surface, axis, or symmetrical surface of the processing parts of the processing parts, such as the change or deviation of the ideal position, such as verticality, position, symmetry, etc.

The position error in the processing of CNC machine tools usually refers to the error of the dead area, which is mainly caused by the gaps and elastic deformation during the transmission process. And in processing, the knife plate of the machine tool needs to overcome friction and other factors, resulting in position errors. In the opening system, the position accuracy is greatly affected, and in the closed -loop servo system, it mainly depends on the accuracy of the displacement detection device and the speed amplification coefficient of the system, which generally has little impact.

Processing accuracy error caused by geometric errors in CNC lathes processing:

In the processing of CNC lathes, the geometric accuracy of the lathe is affected by external factors such as external forces and calories during processing.

The geometric deformation of parts processed on the lathe can cause geometric errors:

According to research, there are two main reasons for the geometric errors of CNC beds: internal factors and external factors.

The internal factors that produce geometric errors in the lathes refer to the geometric errors caused by the factors of the machine.

For example, the horizontal degree of the bed workbench, the level and straightness of the lathe guide rail, the geometric accuracy of the lathe tool and fixture. The external factors mainly refer to the geometric errors caused by the external environment and thermal deformation during the processing process, such as the tool or parts during the cutting process.

Due to thermal expansion and deformation, geometric errors are generated, affecting the processing accuracy of the lathe and parts.