The utility model provides a pre-positioning structure for an automobile energy-absorbing box assembly, which effectively solves the problem of difficult alignment between the energy-absorbing box and the installation hole of the front longitudinal beam, and improves the rhythm and efficiency of automobile production. The technical scheme is that the pre-positioning structure of the automobile energy-absorbing box assembly includes a connecting body, which is welded at the rear end of the outer plate of the automobile energy-absorbing box assembly. The end plate and the front end plate welded at the front end of the front longitudinal beam and the front end of the outer plate of the automobile are assembled. Two pre-positioned pins arranged side by side at the rear end plate are inserted into the corresponding pin hole of the front end plate. The outer diameter of the pre-positioned pin hole is smaller than the inner diameter of the pin hole of the front end plate. Bolt mounting holes are arranged at both sides of the rear end plate and the front end plate. The rear end plate and the front end plate are clamped and positioned by connecting bolts. The relative position of the energy absorbing box assembly and the front longitudinal beam assembly can be basically fixed by adding the pre-positioning structure, which obviously improves the production efficiency, has simple structure, is firm and reliable, and speeds up the production rhythm.
【技术实现步骤摘要】
一种汽车吸能盒总成预定位结构
本技术涉及汽车车身连接结构,特别是一种汽车吸能盒总成预定位结构,适用汽车吸能盒与前纵梁的连接。
技术介绍
目前,在汽车设计时,不仅仅需要考虑汽车本身的性能,也要考虑到后期维修的便利性。汽车在发生正面碰撞时,汽车前端是容易发生损坏的。由于考虑到法规要求,对驾驶员需要进行有效的保护。在汽车前端设计了吸能的结构,即在车身前纵梁的前端,增加了吸能盒结构。在碰撞不是很严重时,吸能盒就能够有效的吸收碰撞产生的能量,起到保护驾驶员的作用。发生碰撞后吸能盒损坏,但前纵梁完好,只需更换吸能盒即可。所以,在设计时,吸能盒与前纵梁通过螺栓连接,方便了后期的维修。常规的吸能盒总成与前纵梁通过螺栓连接,在前纵梁前端焊有用于连接吸能盒总成的螺母,一般个数是4个。在吸能盒总成上,预留有4个用于螺栓连接的圆孔或长圆孔。由于对吸能盒总成的精度要求不大,所以在安装时,吸能盒总成没有装具。安装时,工人需要提前将吸能盒总成的圆孔与前纵梁上的螺母对中,然后进行安装。在对中时,由于吸能盒的安装面与前纵梁的安装面都是平面,没有任何的限位,很难完全对中。因此,在生产时,工人很难将吸 ...
【技术保护点】
1.一种汽车吸能盒总成预定位结构,它包括连接本体,其特征在于:该连接本体由焊接在汽车吸能盒总成外板后端的后端板和焊接在汽车前纵梁内板和外板前端的前端板组装成,后端板后部伸出有两个并排设置的预定位销插接在对应的前端板销孔内,预定位销插外径小于前端板销孔内径,在后端板两侧和前端板两侧均设置有螺栓安装孔,后端板和前端板通过连接螺栓夹紧定位。
【技术特征摘要】
2017.10.31 CN 20172142924321.一种汽车吸能盒总成预定位结构,它包括连接本体,其特征在于:该连接本体由焊接在汽车吸能盒总成外板后端的后端板和焊接在汽车前纵梁内板和外板前端的前端板组装成,后端板后部伸出有两个并排设置的预定位销插接在对应的前端...
【专利技术属性】
技术研发人员:胡忠雷,汤湧,
申请(专利权)人:华晨汽车集团控股有限公司,
类型:新型
国别省市:辽宁,21
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