Leveraging their technical advantages in high precision, intelligence, and flexibility, servo presses have emerged as critical equipment in the manufacturing of core components for new energy vehicles (NEVs). Covering multiple key stages—including motors, batteries, and chassis—these machines provide a robust guarantee for product performance and quality.
In the manufacturing of the NEV's "heart"—the electric motor—servo presses play an indispensable role. Since the coaxiality error between the motor rotor and stator must be controlled within 0.02 mm and the bearing preload deviation cannot exceed 5 N, traditional equipment struggles to meet such stringent precision requirements. Through a fully closed-loop control system, servo presses achieve a positional accuracy of ±0.01 mm and a pressure accuracy of ±0.25% FS, enabling the precise execution of processes such as pressing the rotor shaft into the iron core and assembling the stator with the housing. Their multi-stage composite pressing mode allows for the configuration of distinct phases—such as pre-pressing, pressure holding, and final pressing—based on specific process requirements. This prevents component deformation caused by pressure overshoot or undershoot while simultaneously enabling 100% online quality inspection through the real-time acquisition of force-displacement curves, thereby effectively reducing motor noise and enhancing operational efficiency.
In the battery system manufacturing stage, servo presses serve as core equipment for ensuring both safety and performance. Processes such as battery tab pressing and housing encapsulation demand extremely precise pressure control; insufficient pressure can easily lead to poor electrical contact, while excessive pressure risks damaging the battery cells. Servo presses allow for the fine-tuned regulation of pressure and speed, ensuring that battery tabs are pressed firmly and without damage, and that the sealing integrity of the battery housing meets all standards. Furthermore, their data traceability function records the pressing parameters for every individual battery, thereby satisfying the quality control requirements spanning the entire lifecycle of NEV batteries.
In the assembly of lightweight chassis systems—specifically for pressing components such as aluminum alloy shock absorber bushings and control arms—servo presses precisely control the pressing position and pressure in accordance with the specific process requirements of each component. By utilizing force-displacement curves to evaluate assembly quality, these machines ensure the assembly consistency of chassis components, thereby enhancing the driving stability and safety of new energy vehicles.
The application of servo presses has not only significantly elevated the manufacturing precision and production efficiency of core NEV components but has also driven the industry toward greater intelligence and sustainability, establishing itself as a vital pillar supporting the high-quality development of the new energy vehicle sector.
