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Steering rack and method of manufacturing the same

A technology of steering rack and tooth length, which is applied in the direction of steering gear, steering mechanism, mechanical steering gear, etc., and can solve the problems of machine setting change, forming finishing, error, etc.

Active Publication Date: 2018-02-16
STEERING SOLUTIONS IP HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing machining processes that provide multiple steering rack teeth can lead to dimensional issues, including forming and finishing errors due to tool wear and passivation, machine setup changes and heat treatment distortions
Additionally, these forming processes can result in high residual stresses that can cause deformation of multiple steering rack teeth

Method used

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  • Steering rack and method of manufacturing the same
  • Steering rack and method of manufacturing the same
  • Steering rack and method of manufacturing the same

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Embodiment Construction

[0032] The present disclosure relates to a steering rack and a method of manufacturing a steering rack.

[0033] Now with reference to the accompanying drawings, the present invention is described with reference to specific embodiments, but the present invention is not limited to these embodiments, it should be understood that these disclosed embodiments are only used to illustrate the present invention, which can be achieved through various an alternative way to implement it. Various elements of the disclosed embodiments may be combined or omitted to form further embodiments of the invention. The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art how to variously employ the present invention.

[0034] see figure 1 , ...

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PUM

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Abstract

A steering rack includes an elongate member, a plurality of steering rack teeth, and a ramp function. The elongate member has a first portion disposed opposite a second portion. The plurality of steering rack teeth are cut and formed into the first portion. Each tooth of the plurality of steering rack teeth has a substantially constant height across a length of the elongate member. The ramp function is formed into the second portion of the elongate member. A method of manufacturing the steering rack is provided.

Description

Background technique [0001] Some steering racks have multiple steering rack teeth that are machined or heated / thermoformed into the desired shape. Existing machining processes that provide multiple steering rack teeth can lead to dimensional issues, including forming and finishing errors due to tool wear and passivation, machine setup changes and heat treatment distortion. Furthermore, these forming processes may result in high residual stresses which may cause deformation of the multiple steering rack teeth. Contents of the invention [0002] According to an embodiment of the present invention, a method of manufacturing a steering rack is provided. The method includes cutting a plurality of steering rack teeth into a first portion of an elongate (elongate) member. Each tooth of the plurality of steering rack teeth has a first tooth width and a first tooth height. The method also includes placing an elongated member having a plurality of steering rack teeth in a press. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K7/12B62D3/12
CPCB21K7/12B62D3/126B21K1/767B21D53/88
Inventor W·S·安德斯D·E·金K·H·马赛P·T·杜文达克
Owner STEERING SOLUTIONS IP HLDG