Damage-free lining press fitting technology for steering knuckle

Abstract

The invention relates to the technical field of steering knuckle machining, in particular to a damage-free lining press fitting technology for a steering knuckle. The damage-free lining press fitting technology for the steering knuckle comprises the steps of a, pressing in linings, wherein the two linings are pressed into main pin holes correspondingly; and b, conducting outward shaping and ironing press on the linings, wherein an ironing press rod is made to penetrate the linings, the inner surface of each lining is shaped through the outer surface of the ironing press rod, the outer surface of each lining is made to be tightly attached to the inner surface of the corresponding main pin hole, the ironing press rod is provided with an ironing press section comprising a plurality of annular ironing press teeth with the diameters becoming larger gradually, the top of each annular ironing press tooth is in a trapezoid shape or a circular arc shape, and a groove with the depth larger than 1.5 mm and the width larger than 1.5 mm is arranged between every two adjacent annular ironing press teeth. According to the damage-free lining press fitting technology for the steering knuckle, the ironing press rods conduct shaping and ironing press on the linings, the installation precision of the lining is guaranteed, the squeezing damage to the linings is reduced, and the inside dimension of each lining meets the assembly requirement after shaping and ironing press are conducted on the lining through the ironing press rod.

Description

technical field [0001] The invention relates to the technical field of steering knuckle processing, in particular to a process for pressing a bushing without damage to a steering knuckle. Background technique [0002] The steering knuckle is one of the main parts on the steering axle of the car, which can make the car run stably and transmit the driving direction sensitively. The function of the steering knuckle is to bear the front load of the car, support and drive the front wheel to rotate around the kingpin to make the car turn. The steering knuckle includes a rod, a flange and a fork, wherein the upper ear and the lower ear of the fork are provided with coaxial kingpin holes. When processing the steering knuckle, it is necessary to install a bush in the kingpin hole. It is necessary to ensure that the two bushes in the upper ear and the lower ear are coaxial, and the inner diameter meets the assembly requirements. Pressing the bushing in, it is difficult to ensure the ...

AI Technical Summary

Problems solved by technology

When processing the steering knuckle, it is necessary to install a bush in the kingpin hole. It is necessary to ensure that the two bushes in the upper ear and the lower ear are coaxial, and the inner diameter meets the assembly requirements. Pressing the bushing in, it is difficult to ensure the installation accuracy, the rate of defective products is high, and it is easy to form scratches in the bushing, which affects the service life of the bushing

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