Under the background of rapid development of modern industry and science and technology, as the core equipment of power conversion and transmission, the performance and stability of the motor directly affect the efficiency and reliability of the entire industrial chain. The motor rotor shaft, as a key component in the motor structure, not only bears the weight of the rotating parts inside the motor, but also is responsible for transmitting torque to ensure the smooth operation of the motor. However, with the continuous advancement of industrial technology, the demand for high precision and high performance of the motor rotor shaft is becoming increasingly stringent, and traditional processing methods can no longer meet these requirements. Turning and milling composite precision machining technology came into being, providing a new solution for the manufacture of motor rotor shafts and their customized bearing parts.

The working environment of the motor rotor shaft is complex and changeable, and it needs to withstand large radial and axial loads while maintaining good wear resistance, fatigue resistance and stability. Traditional processing methods, such as single turning or milling, are prone to introduce processing errors due to the need for multiple clamping, which affects the accuracy and performance of the final product. In addition, multiple clamping will increase processing time and reduce production efficiency. In order to overcome these problems, turning and milling composite precision machining technology came into being.

Turning and milling composite precision machining technology is an advanced manufacturing technology that integrates multiple machining methods such as turning, milling, drilling, reaming and tapping. This technology can complete multiple machining tasks through one clamping, which not only significantly reduces machining errors and clamping time, but also improves machining efficiency and product precision. This technology is particularly suitable for the manufacturing of parts with high precision and high performance requirements such as motor rotor shafts.

High-precision machining: Turning and milling composite machining machines are usually equipped with high-precision servo control systems and precision guide rails to ensure precision control during the machining process. At the same time, multiple machining tasks can be completed in one clamping, avoiding the accumulation of errors caused by multiple clampings, thereby improving the precision of the final product.
High-efficiency production: Turning and milling composite machining technology can significantly improve production efficiency due to the reduction of clamping times and tool change time. In addition, this technology can also realize automated production, further reducing production costs and labor intensity.
High flexibility: Turning and milling composite machining machines have a wide range of machining capabilities and can be used for machining motor rotor shafts of different types and sizes and their customized bearing parts. This provides users with more choices and also improves the utilization rate of equipment.
Short process chain: Turning and milling composite processing technology integrates multiple processing methods, shortens the product manufacturing process chain, reduces the uncertainty and error sources in the production process, and thus improves product quality and reliability.

In the manufacturing process of the motor rotor shaft, the precision manufacturing of customized bearing parts is also crucial. As a key supporting component of the motor rotor shaft, the quality and performance of the bearing parts directly affect the operating efficiency and life of the motor. Therefore, when customizing bearing parts, it is necessary to fully consider the use scenarios and specific needs of the motor and select the appropriate bearing type and material.

Turning and milling composite precision processing technology provides strong support for the manufacture of customized bearing parts. Through this technology, the size, shape and surface quality of the bearing parts can be accurately controlled. For example, when processing deep groove ball bearings, the high-precision characteristics of the turning and milling composite processing machine tool can be used to ensure that the coaxiality and end face runout of the inner and outer rings of the bearing meet the design requirements. At the same time, by optimizing the processing technology and parameters, the wear resistance, fatigue resistance and stability of the bearing can be further improved.

Turning and milling composite precision processing technology can also realize the processing of complex structures of bearing parts. For example, when machining thrust ball bearings, the milling function can be used to precisely machine the bearing seat and thrust washer to ensure the matching accuracy and stability with the inner and outer rings of the bearing. The processing capability of this complex structure makes the turning and milling composite precision machining technology have a wide range of application prospects in the manufacture of customized bearing parts.

In the process of turning and milling composite precision machining of customized bearing parts of motor rotor shaft, quality control and performance optimization should also not be ignored. In order to ensure that the quality and performance of the final product meet the design requirements, a series of quality control measures need to be taken. For example, in terms of raw material selection, high-quality and high-performance bearing steel should be selected as raw material; in the processing process, process parameters such as processing temperature, cutting speed and feed rate should be strictly controlled; in terms of finished product inspection, advanced inspection equipment and methods should be used to comprehensively inspect the size, shape, surface quality and performance of bearing parts.

The performance of motor rotor shaft and customized bearing parts can also be further improved by optimizing the processing technology and parameters. For example, reasonable coolant and lubrication methods are used in the processing process to reduce thermal deformation and wear during the processing; reasonable structure and material matching are used in the design of bearing parts to improve their wear resistance, fatigue resistance and stability. These optimization measures can not only improve product quality and performance, but also reduce production costs and energy consumption.

The high-precision and high-performance requirements of motor rotor shafts have promoted the development and application of turning-milling composite precision machining technology. This technology can complete multiple machining tasks through one clamping, significantly improve machining accuracy and production efficiency, and provide a new solution for the manufacture of motor rotor shafts and their customized bearing parts. In the future, with the continuous advancement of industrial technology and the continuous changes in demand, turning-milling composite precision machining technology will play an important role in more fields and provide strong support for the development of modern industry.