Integrally-formed front fork and manufacturing method thereof

Abstract

The invention discloses an integrally-formed front fork and a manufacturing method. The integrally-formed front fork comprises a cylindrical turning pipe, a connecting portion and a front fork piece, and the turning pipe and the front fork piece are integrally formed at the upper end and the lower end of the connecting portion respectively. The manufacturing method of the integrally-formed front fork mainly includes steps of pipe reducing and molding and the like to process the front fork. Compared with the prior art, the integrally-formed front fork has higher strength, capability of meeting service requirements and bearing larger axial and turning impact during extreme motions. Meanwhile, the welding step is omitted in the manufacturing method, the manufacturing process of the front fork is simplified, assembling and material cost of the front fork is reduced and strength loss caused by welding can be avoided.

Description

[0001] technical field [0002] The invention relates to accessories of a scooter, in particular to an integrally formed front fork for a scooter and a manufacturing method of the integrally formed front fork. [0003] Background technique [0004] The front fork is the key component of the scooter, it is mainly used to connect the front wheel support shaft and the main body bracket, on the one hand, it needs to bear the ground impact force transmitted by the front wheel axle, on the other hand, it also needs to bear the impact caused by turning the handle to drive the front wheel to turn. Therefore, the front fork is required to have sufficient axial bending strength and torsional strength to meet the requirements of use, especially for some extreme sports special scooters, which have higher strength requirements for the front fork. [0005] The front fork of the existing scooter is usually made of a solid rod to meet the strength requirements. Such a front fork structure ...

AI Technical Summary

Problems solved by technology

[0005] The front fork of the existing scooter is usually made of a solid rod to meet the strength requirements. Such a front fork structure usually has a relatively large weight, which affects the performance of the vehicle. Although it can be made of lighter materials, this A material improvement that is very limited in reducing the weight of the fork

[0006] At this stage, some front forks are made by welding the steering tube and the front fork, specifically, the steering tube and the front fork are made separately, and then the front fork is welded to the bottom of the steering tube. Assembling and welding each component requires a complicated manufacturing process, low productivity, and high manufacturing costs, and there is a weld between the front fork and the steering tube. When a large torsional force is applied, the weld is difficult to Under large shear force, the front fork is prone to breakage at the welding seam in actual use

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