In the vast field of precision machinery manufacturing, valve stems are the core components of fluid control systems, and their processing quality is directly related to the performance and reliability of the entire system. With the rapid development of industrial technology, more stringent requirements are put forward for the processing accuracy and surface quality of valve stems. In this context, turning and milling compound precision processing technology stands out with its unique advantages and becomes an important innovation in the field of valve stem processing.

As an outstanding representative of modern CNC machine tools, turning and milling compound machine tools integrate the two major processing functions of turning and milling into one, realizing a high degree of integration of processing procedures. This machine tool design cleverly combines the advantages of the two processing methods, retaining the high efficiency and stability of turning processing on cylindrical surfaces, end faces and other parts, and giving full play to the flexibility of milling processing in processing complex curved surfaces, notches and other structures. In the processing of valve stems, turning and milling compound machine tools have shown incomparable advantages with their excellent processing performance.

The geometric size and shape accuracy of the valve stem are the basis of its performance. Through advanced CNC systems, turning and milling compound machine tools can achieve precise control of tool motion trajectory and cutting parameters. During the machining process, the machine tool automatically adjusts the tool feed speed, cutting depth, speed and other parameters according to the preset program instructions to ensure that each process can be accurately executed according to the design requirements. This high-precision control capability enables the complex structures such as the outer circle, end face, and notch of the valve stem to be accurately formed, which not only ensures the geometric size and shape accuracy of the valve stem, but also greatly improves the machining efficiency.

In addition to the geometric size and shape accuracy, the position accuracy of the valve stem during assembly and use is also crucial. Deviations in position accuracy can lead to reduced sealing, increased leakage, and even system failures in the fluid control system. When machining the valve stem, the milling machine tool ensures that the relative position relationship between the various parts of the valve stem is accurate through precise tool control and stable machine tool structure. This high-precision position control provides a solid foundation for the stable operation of the valve stem in the fluid control system. When the valve stem is assembled into the system, it can accurately cooperate with other components to achieve precise control of the fluid and ensure efficient and stable operation of the system.

The structure of the valve stem is often complex, containing a variety of different machining surfaces and features. Traditional processing methods often require multiple machine tools and multiple clamping to complete processing, which not only increases the difficulty and cost of processing, but also easily introduces errors and deformation. The turning and milling compound machine tool can complete multiple process processing of the valve stem in one clamping, reducing the number of clamping times and conversion time, and effectively avoiding the accumulation of errors and the occurrence of deformation. At the same time, the milling function of the machine tool can also flexibly handle complex curved surfaces and notches on the valve stem, ensuring the consistency and stability of the processing quality.

In addition to the performance advantages of the machine tool itself, turning and milling composite processing also focuses on the optimization and improvement of processing technology. When processing the valve stem, carburizing treatment, quenching and straightening processes are usually combined to further improve the performance of the valve stem. Carburizing treatment can increase the hardness and wear resistance of the valve stem surface; the quenching process causes the internal structure of the valve stem to undergo phase change through rapid cooling, thereby improving its hardness and strength; and the straightening process ensures that the valve stem maintains good straightness and coaxiality after processing. The comprehensive use of these processes not only improves the hardness and fatigue resistance of the valve stem, but also enables it to maintain a stable operating state in harsh working environments.

The application of turning-milling compound precision machining technology in the field of valve stem machining has laid a solid foundation for the stable operation of fluid control systems. By precisely controlling the motion trajectory and cutting parameters of the tool, the turning-milling compound machine tool achieves precise machining of the complex structure of the valve stem, ensuring the geometric size, shape accuracy and position accuracy of the valve stem. At the same time, combined with advanced machining technology and heat treatment technology, the performance and reliability of the valve stem are further improved. With the continuous development of industrial technology, turning-milling compound precision machining technology will be widely used in more fields, contributing more to the transformation and upgrading of the manufacturing industry and high-quality development.