The invention discloses a hollow front axle of a micro-light truck and a manufacturing method of the hollow front axle, and relates to the technical field of automobile parts, a middle cross beam of a hollow axle body is a circular tube, a bent neck is gradually changed into a hollow rectangle from a hollow circle, a fist is a thick-wall rectangular tube with a rectangular hole, and the rectangular hole is welded by a plug. And a steering limiting block is embedded in the curved surface groove on the rear side of the fist head. A seamless steel pipe is selected, two ends of the seamless steel pipe are subjected to bending blank making after being subjected to hot upsetting and thickening, and then multi-directional pressing forming is performed to obtain the hollow front axle. According to the hollow front axle of the micro-light truck and the manufacturing method of the hollow front axle, the welding hidden danger at the joint of the cross beam and the bent neck of a steel pipe assembly welding type front axle is thoroughly eliminated, and the safety of the truck is improved; the material utilization rate is up to 95%, the weight is reduced by 15% compared with a forged front axle, and the weight is reduced by 10% compared with a steel tube assembly welding type front axle; compared with an existing hollow front axle forming method, the structure is simplified, the shape quality is high, energy consumption is low, and large forging and pressing equipment is not needed.
本发明公开了一种微轻型货车空心前轴及其制造方法,涉及汽车零部件技术领域,空心轴体的中部横梁为圆管,弯脖由空心圆逐渐变成空心矩形,拳头为带有矩形孔的厚壁矩形管,矩形孔用封堵焊实,在拳头后侧的曲面凹槽内嵌入转向限位块。选用无缝钢管,两端热态镦粗增厚后进行弯曲制坯,再进行多向压制成形得到空心前轴。本申请提供的微轻型货车空心前轴及其制造方法,彻底消除了钢管组焊式前轴的横梁与弯脖连接处的焊接隐患,提高车辆的安全性;材料利用率高达95%,较锻造前轴减重15%,较钢管组焊式前轴减重10%;与现有的空心前轴成形方法相比,结构简化,形质量高,能耗低,不需要大型锻压设备。
Hollow front axle of micro-light truck and manufacturing method of hollow front axle
一种微轻型货车空心前轴及其制造方法
2024-06-14
Patent
Electronic Resource
Chinese
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