Method for machining high-rigidity inner ring flange of automobile hub bearing unit

Abstract

The invention provides a method for machining a high-rigidity inner ring flange of an automobile hub bearing unit. The method comprises the steps of 1, sawing materials; 2, performing medium-frequency heating; 3, performing closed type forging; 4, performing residual-temperature normalizing and low-temperature tempering; 5, performing cooling and rough turning; 6, performing double shot blasting treatment; 7, drilling a hole, specifically, machining a flange plate hole by adopting a drill; 8, performing semi-finish turning, finish turning and forming, specifically, performing semi-finish turning and finish turning treatment on a flange plate obtained in the step 7; and 9, machining a channel and performing superfinishing on the channel.

Description

technical field [0001] The invention relates to a processing method for a high-rigidity inner ring flange of an automobile hub bearing unit, belonging to the field of metal processing. Background technique [0002] The main function of the automobile hub bearing unit is to bear the weight of the vehicle transmitted through the suspension system, the axial load generated by the steering, transmit the torque transmitted by the gearbox and the drive shaft, and provide accurate guidance for the rotation of the hub, etc. Hub bearing units mainly include inner rings, outer rings, rolling elements, cages and other components. The third-generation hub bearing unit that has developed to the present mainstream is composed of an outer ring with a flange connected to the suspension and an inner ring with a flange connected to the brake disc and steel ring, and is similar to the second-generation hub bearing unit. Different, the third generation hub bearing unit integrates the ABS senso...

AI Technical Summary

Problems solved by technology

Due to the complex and asymmetric structure of the inner ring fla

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