Design and research of special machine tool for flange processing of automobile rear axle housing

In order to enhance the precision and efficiency of flange processing for new energy vehicle rear axle housings, an optimized dedicated turning center was developed. This machine achieves one-time clamping for flange processing on one end, encompassing operations like face turning, threading, external turning, drilling, and boring. Leveraging SolidWorks2022 modeling and Simulation finite element analysis, a maximum allowable smoothing pressure of 90 N was determined. Cutting tests verified compliance with drawing specifications at 67.5 N pressure, achieving a production rate of 24.41 pcs/h, meeting an annual output target of 100 000 units. This development offers an effective automation solution for similar flange parts in the automotive industry.