Automobile steering intermediate shaft integrated long joint fork structure and manufacturing technology thereof
An intermediate shaft, one-piece technology, which is applied to the steering control, steering column, mechanical steering gear and other directions installed on the vehicle, can solve the problems of many blank forming processes, high technical difficulty, and complicated processes, and improve machining efficiency. , the effect of overcoming design defects and reducing manufacturing costs
Pending Publication Date: 2019-03-22
YUBEI CSA XINXIANG AUTO TECH CO LTD
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Problems solved by technology
[0002] The characteristics of the existing one-piece forged yoke are: the blank is formed by forging. Since the blank adopts a solid structure, the blank is in a solid state after forming. The main disadvantages of the one-piece forged yoke are: ①The blank is forged and formed into a solid structure , the material consumption is large, and the cost of the blank is high. ②The one-piece forged long-section fork has many blank forming processes, a large investment in molds, high technical difficulty, and a long development cycle. Slots need to be specially processed on the fastening parts of the bolts, so the manufacturing cost of a single piece is very high
[0003] The characteristics of the existing split-welded yoke are: the yoke is usually divided into three parts before welding, such as the outer yoke and the connecting shaft are connected and then welded to form the connecting shaft yoke, the split-welded yoke The main disadvantages are: ①The yoke usually consists of 3 parts, which need to be formed by welding after assembly. Risks such as connection failure) The connection forming process has high requirements on technology, which may easily cause poor coaxiality of the outer joint fork relative to the inner joint fork, which will eventually lead to excessive jumping of parts and the risk of abnormal noise
Method used
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Embodiment Construction
[0011] Embodiments are described in detail in conjunction with the accompanying drawings,
[0012] A manufacturing process for an integrated long-section yoke structure of an automobile steering intermediate shaft. Firstly, a mold with the same structure as the integrated long-section yoke of an automobile steering intermediate shaft is processed, and then cast, and the workpiece blank after casting is polished and molded. Use the drawing tool to pull out the spline for the bottom hole.
[0013] An integrated long yoke structure of an automobile steering intermediate shaft, which includes a yoke body 1, which is integrally formed by casting, a reinforcing rib 2 is provided on the back of the yoke body, and a reinforcing rib 2 is also provided on the bottom of the yoke body. ribs; the front forks 6 on both sides of the joint fork body are provided with card slots 7; the tail of the joint fork body is provided with a bottom hole 3, and the bottom of the bottom hole is provided w...
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The invention discloses an automobile steering intermediate shaft integrated long joint fork structure and a manufacturing technology thereof. The structure comprises a joint fork body. The joint forkbody is integrated formed by casting. Reinforcing ribs are arranged at the back of the joint fork body, and reinforcing ribs are also arranged at the bottom of the joint fork body; front forks on thetwo sides of the joint fork body are each provided with a clamping groove; a bottom hole is formed in the tail of the joint fork body, and a long through groove is formed below the bottom hole. The structure workblank is formed by casting, an open groove and a spline bottom hole are both formed by casting, and the workblank is low in weight and cost.
Description
technical field [0001] The invention relates to an automobile steering intermediate shaft, in particular to an integrated long-section yoke structure suitable for the automobile steering intermediate shaft. Background technique [0002] The characteristics of the existing one-piece forged yoke are: the blank is formed by forging. Since the blank adopts a solid structure, the blank is in a solid state after forming. The main disadvantages of the one-piece forged yoke are: ①The blank is forged and formed into a solid structure , the material consumption is large, and the cost of the blank is high. ②The one-piece forged long-section fork has many blank forming processes, a large investment in molds, high technical difficulty, and a long development cycle. Slots need to be specially processed at the fastening parts of the bolts, so the manufacturing cost of a single piece is very high. [0003] The characteristics of the existing split-welded yoke are: the yoke is usually divid...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B62D1/20B62D3/02
CPCB62D1/20B62D3/02
Inventor 张浩洋李晓锋魏永辉郭振洲宋振林
Owner YUBEI CSA XINXIANG AUTO TECH CO LTD