The invention discloses an automobile intermediate connection steering shaft and a preparation method thereof.The automobile intermediate connection steering shaft comprises a hollow pipe, a pipe expanding structure is integrally formed at one end of the hollow pipe, a spline structure is integrally formed on the outer wall of the other end of the hollow pipe, and a coupler is integrally formed on the pipe expanding structure; a first knurling structure, a second knurling structure and a connecting shaft are integrally formed on the coupler, an input shaft is arranged on the outer side of the spline structure, a connector is integrally formed in the position, located at the end of the spline structure, of the hollow pipe, and a composite reinforcing piece is integrally formed on the outer wall of the hollow pipe. According to the intermediate connection steering shaft for the automobile and the preparation method of the intermediate connection steering shaft, the hollow pipe cold extrusion forming process is adopted, the size precision of a manufactured product is higher than that of a forged product, meanwhile, the weight of the product is much reduced compared with that of a solid forging product, the cost is also reduced, and meanwhile the productivity efficiency of the cold extrusion process is far higher than that of the forged product.
本发明公开了一种汽车用中间连接转向轴及其制备方法,包括空心管材,所述空心管材的一端一体成型有扩管结构,所述空心管材的另一端外壁一体成型有花键结构,所述扩管结构上一体成型有联轴器,所述联轴器上一体成型有第一滚花结构、第二滚花结构与连接轴,所述花键结构的外侧设置有输入轴,所述空心管材上位于花键结构端部的位置一体成型有连接器,所述空心管材的外壁一体成型有复合增强片。本发明所述的一种汽车用中间连接转向轴及其制备方法,采用的是空心管冷挤压成型工艺,做出来的产品尺寸精度比锻造产品精度高,同时产品重量比实心锻造的减轻很多,也降低了成本,同时冷挤压工艺的产能效率要远远大于锻造产品。
Intermediate connection steering shaft for automobile and preparation method of intermediate connection steering shaft
一种汽车用中间连接转向轴及其制备方法
2024-12-10
Patent
Electronic Resource
Chinese
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