Effective measures to improve the machining accuracy of CNC lathe


As a cutting-edge processing technology, CNC lathe has a high level of processing and accuracy. It has a decisive impact on the quality and performance of the workpiece. CNC lathe can be digitally controlled by computer technology, with a high level of automation. Therefore, it is widely used in the field of machining.

Effective measures to enhance the machining accuracy of CNC lathe:

(1) Error prevention method

The error prevention method is an effective preventive method, which avoids errors through prevention or controls them within a reasonable range. By optimizing the design of the machine tool, the error is controlled within a reasonable range as far as possible. For example, according to the machining accuracy required for machining, the lathe structure can be further optimized to provide support for the subsequent accuracy and rigidity of parts machining. In addition, the machining environment can also be effectively controlled to optimize the machining process. However, it should be noted that the error prevention method also has certain defects and shortcomings. Excessive enhancement of CNC lathe precision will not only affect product quality, but also increase processing costs, which is not conducive to the long-term survival and development of enterprises.

(2) Optimize the overall design of CNC lathe

In the overall design of CNC lathe, a reasonable production strategy should be selected according to the actual situation to improve the efficiency and accuracy of CNC lathe manufacturing. From the current development status of China’s CNC lathe manufacturing enterprises, mainly through their own design of the host structure, outsourcing key functional components. This can not only improve the processing quality, but also effectively reduce the processing cost. At the same time, the overall design of CNC lathe need to ensure that the deformation stress is evenly distributed to each component. This can avoid the emergence of weak stiffness parts and improve the problem of lathe deformation.

For the adjustment of the center of gravity of the CNC lathe structure, the height of the center of gravity can be appropriately reduced according to the actual requirements. While not affecting the manufacturing quality of CNC lathe, the swing mode frequency can also be increased. On the basis of ensuring structural rigidity, reduce the amount of structural material as much as possible to effectively control the center of gravity of the machine tool. In order to effectively improve the machining accuracy of CNC lathe, the thermal characteristics of the spindle system are optimized by optimizing the design. This helps to improve the defects and deficiencies in the traditional process and enhance the rationality of the spindle system design. Improve the spindle drift phenomenon as much as possible, and control the error within a reasonable range.

(3) Improve the geometric accuracy of the lathe guideway

The geometric accuracy of the bed guideway should be further optimized to optimize the design of the lathe body base and guideway structure. For full-featured CNC lathe, the inclined bed form can be selected for design. Through the closed cylindrical structure, this can reduce self-weight and optimize the manufacturing process. Through the barrel structure, the CNC machine tool is prompted to obtain considerable geometric accuracy under the cutting load. Usually, it is necessary to consider the moving speed comprehensively, choose the guideway with strong load capacity as much as possible, and optimize the

CNC lathe machining process. In addition, to improve the accuracy of the CNC lathe under high load cutting conditions, the inlaid steel sliding guideway sub-structure can be selected according to the actual situation. The injection molding material is installed on the steel guide rail with bolts, which helps to improve the gap between the steel guide rail and the base guide rail. Optimize the defects and deficiencies in the process, improve the precision of guideway processing, and provide a solid guarantee for the quality of subsequent processing.