There are still some difficulties in the machining process of vane pumps. Let's have an understanding and summary of these issues.

In many pump products in the hydraulic parts industry, especially vane pumps and vane oil motors, the rotor and stator are the most important components. In the machining of these parts, the grinding of the rotor groove is particularly critical. Because the accuracy of the rotor slot has a significant impact on the pump, the rotor of a vane pump has high geometric and dimensional accuracy. In addition, its parts have strict requirements for dimensional accuracy, form and position tolerances, and surface roughness, making it difficult to process. As an important hydraulic component, the improvement of the quality of YB1 vane pump is crucial for the technological progress of the hydraulic parts industry. In the machining of rotors, the core technology is the grinding of slots.

Although domestic manufacturers in the grinding machine industry can also mass produce specialized grinding machines for rotor slots, in recent years, there have also emerged some machine tool factories in China that manufacture such equipment, which can meet the general needs of users in the hydraulic parts industry. However, compared with advanced levels abroad, domestically produced grinding machines for rotor slots still cannot meet the needs of users in terms of machining accuracy, accuracy consistency, production efficiency, and user-friendly operation. Therefore, some manufacturers in the hydraulic parts industry still rely on imported machine tools for the grinding machine used in the precision machining of the rotor groove of YB1 vane pump.

In recent years, with the advancement of technology, the hydraulic parts industry has increasingly strict requirements for rotor slot accuracy, surface roughness, and processing efficiency, coupled with the increasing application of large-sized rotors. For example, the hydraulic motors urgently needed in the domestic shipbuilding industry require grinding of large rotors, with high requirements for rotor diameter, thickness, surface hardness, tolerances, etc.

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