CN204368065U - Automobile buffer beam frame assembly - Google Patents

Abstract

The utility model provides an automobile anti-collision beam frame assembly. The automobile anti-collision beam frame assembly of the present utility model comprises: a steel bumper frame beam; two aluminum energy-absorbing boxes respectively arranged at both ends of the bumper frame beam; Two bottom plates at the bottom of the energy box. The automobile anti-collision beam skeleton assembly of the utility model is about 15%-40% of the weight of the existing steel automobile anti-collision beam skeleton assembly, which is equivalent to the weight of the existing all-aluminum automobile anti-collision beam skeleton assembly. Effective for weight loss yet still function effectively. In addition, the anti-collision beam is not easy to crack during a collision, and the existing laser cutting can be used for hole processing, and the existing technology is used to weld the required brackets on the anti-collision beam. The processing cost is low, and the processing technology is mature, which is suitable for popularization and application.

Description

Automobile anti-collision beam skeleton assembly

technical field

The utility model relates to the field of automobiles, in particular to an automobile anti-collision beam skeleton assembly.

Background technique

Vehicles, such as automobiles, are equipped with automobile anti-collision beam frame assemblies, also known as bumper frame assemblies, including anti-collision beams, also known as bumper frame beams, energy-absorbing boxes and floor plates. When the car collides, the collision energy can be shared to the energy absorbing box through the anti-collision beam to absorb the collision energy, so as to achieve the purpose of protecting the safety of the people in the car. In order to ensure the safety of the occupants in the vehicle, the anti-collision beam needs to have sufficient energy sharing capacity, and the energy-absorbing box needs sufficient energy-absorbing capacity.

At present, the automobile anti-collision beam frame assembly can be made of several materials, such as the steel automobile anti-collision beam frame assembly, which is relatively heavy overall. The cost is higher when it is all aluminum. Therefore, the field still needs to reduce the weight of the automobile anti-collision beam frame assembly, but still make it function effectively.

Utility model content

The purpose of the utility model is to provide a light-weight car anti-collision beam skeleton assembly.

The automobile anti-collision beam assembly of the present utility model comprises:

Steel bumper skeleton beam;

Two aluminum energy-absorbing boxes are respectively arranged at the two ends of the bumper frame beam;

The two bottom plates are respectively arranged at the bottom ends of the two aluminum crash boxes.

In another preferred example, the bumper frame beam is rolled and formed by steel plate.

In another preferred example, the bumper frame beam and the crash box are connected by bolts or screws.

In another preferred example, the bumper frame beam is arc-shaped.

In another preferred example, the bottom plate is an aluminum bottom plate.

In another preferred example, the bottom plate is connected to the crash box by welding.

In another preferred example, the automobile anti-collision beam skeleton assembly further includes tow hook nuts.

In another preferred example, the tow hook nut is an aluminum tow hook nut, and is connected to the crash box through a screw reinforcement block.

In another preferred example, the tow hook nut is a steel tow hook nut welded to the steel bumper frame beam.

In another preferred example, the screw reinforcement block is arranged between the steel bumper frame beam and the energy-absorbing box, and the energy-absorbing box, the screw reinforcement block, and the steel energy-absorbing box are connected by bolts. The bumper frame beams are connected together.

In another preferred example, the tow hook nut is integrally welded with the screw reinforcement block, or integrally formed by integral extrusion.

The automobile anti-collision beam frame assembly of the present utility model adopts steel bumper frame beams and aluminum energy-absorbing boxes, which is about 15%-40% of the weight of the existing automobile anti-collision beam frame assembly, and can effectively reduce weight. Simultaneously, because the steel bumper frame crossbeam has better ability to share the collision energy, and the aluminum energy-absorbing box has better energy-absorbing effect, the automobile anti-collision beam frame assembly of the utility model can still effectively play its function.

It should be understood that within the scope of the present utility model, the above-mentioned technical features of the present utility model and the technical features specifically described in the following (such as embodiments) can be combined with each other to form new or preferred technical solutions . Due to space limitations, we will not repeat them here.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of an automobile anti-collision beam skeleton assembly.

Figure 2 is a schematic diagram of the assembly structure of the automobile anti-collision beam skeleton assembly.

Figure 3 is a schematic diagram of the connection between the tow hook nut and the crash box.

Fig. 4 is a schematic diagram of the combination of the tow hook nut and the screw reinforcement block.

Fig. 5 is a structural schematic diagram of an existing automobile anti-collision beam skeleton assembly.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. For the experimental methods without specific conditions indicated in the following examples, usually follow the conventional conditions or the conditions suggested by the manufacturer.

Unless otherwise defined, all professional and scientific terms used herein have the same meanings as commonly understood by those skilled in the art. In addition, any methods and materials similar or equivalent to those described can be applied to the method of the present invention. The preferred implementation methods and materials described herein are for demonstration purposes only.

Automobile anti-collision beam skeleton assembly

As shown in Figure 1, the automobile anti-collision beam skeleton assembly of the present utility model comprises:

Steel bumper frame beam 1;

Two aluminum energy-absorbing boxes 2 are respectively arranged at the two ends of the bumper frame beam 1;

The two bottom plates 3 are respectively arranged at the bottom ends of the two aluminum crash boxes 2 .

The bumper frame beam 1 of the utility model is arc-shaped. In a preferred embodiment, the bumper frame beam 1 of the present invention is formed by roll bending of steel plates. Weight does not exceed aluminum insurance. Due to the rolling and bending of steel plates, it is not easy to crack when colliding.

The energy-absorbing box 2 of the utility model is made of aluminum and has a hollow cavity inside. Steel crash boxes are usually 2.5-4.5 times the weight of aluminum crash boxes. The utility model adopts an aluminum energy-absorbing box, so that the automobile anti-collision beam frame assembly of the present utility model is about 15%-40% of the weight of the existing automobile anti-collision beam frame assembly, which can effectively reduce weight.

As shown in FIG. 2 , the bumper frame beam 1 and the crash box 2 are connected by bolts or screws 4 . In a preferred embodiment, when bolts or screws 4 are used for connection, a screw washer 5 is arranged between the bumper frame beam 1 and the crash box 2 of the bolts or screws 4 . In a preferred embodiment, the screw washer 5 is a steel screw washer. In a preferred embodiment, said bolts or screws 4 are made of steel.

The base plate 3 of the present utility model is preferably an aluminum base plate. The bottom plate 3 is connected to the crash box 2 by welding. During assembly, the energy absorbing box 2 is connected to the front longitudinal beam of the automobile through the bottom plate 3, preferably by bolts.

In addition, the automobile anti-collision beam frame assembly 1 also includes a tow hook nut 6 . Preferably, the tow hook nut 6 is made of aluminum.

In a preferred embodiment, as shown in FIG. 3 , the tow hook nut 6 is connected to the crash box 2 through a screw reinforcement block 7 . Preferably, the screw reinforcement block 7 is made of aluminum.

In another preferred example, the tow hook nut 6 is a steel tow hook nut, which is welded on the steel bumper frame beam 1 .

In another preferred embodiment, the tow hook nut 6 is welded on the steel bumper frame beam 1 .

As shown in FIG. 4 , the screw reinforcement block 7 includes a reinforcement plate 8 and two cylinders 9 at both ends, and through holes 10 are formed in the cylinders. In a preferred embodiment, the two columns 9 and the reinforcing plate 8 are integrally formed.

During assembly, the screw reinforcement block 7 is arranged between the steel bumper frame beam 1 and the energy-absorbing box 2, and the bolts or screws 4 pass through the holes on the steel bumper frame beam 1, The holes on the energy-absorbing box 2, the through holes 10 at both ends of the screw reinforcement block, the holes on the energy-absorbing box 2, and the holes on the steel bumper frame beam 1, the energy-absorbing The box 2, the screw reinforcement block 7 and the steel bumper frame beam 1 are connected together.

As shown in FIG. 4 , the tow hook nut 6 is vertically arranged with the screw reinforcement block 7 , and the tow hook nut 6 is integrally welded with the reinforcing plate 8 of the screw reinforcement block 7 , or integrally formed by integral extrusion.

After testing, the automobile anti-collision beam frame assembly of the utility model has better anti-collision performance, and can ensure the safety of people in the vehicle when the vehicle collides while effectively reducing weight.

The above-mentioned features mentioned in the utility model can be combined arbitrarily. Each feature disclosed in the specification may be replaced by any alternative feature serving the same, equivalent or similar purpose. Therefore, unless otherwise specified, the disclosed features are only general examples of equivalent or similar features.

The utility model combines the steel bumper frame beam with the aluminum energy-absorbing box for the first time to provide a new structure automobile anti-collision beam frame assembly, and proposes a new steel bumper frame beam and aluminum energy-absorbing box How the box is connected. The steel bumper frame beam has a better ability to share the collision energy, and the aluminum energy-absorbing box has a better energy-absorbing effect. The deformation is late, so that the energy-absorbing box is subjected to a relatively uniform end face force, which can make the automobile anti-collision beam skeleton assembly achieve a better overall energy-absorbing effect. The automobile anti-collision beam skeleton assembly of the utility model can effectively reduce the weight and at the same time ensure the safety of people in the vehicle when the vehicle collides.

In addition, the anti-collision beam formed by rolling and bending steel plates is not easy to crack during a collision, and laser cutting can be used for hole processing. Because it is not a highly reflective material for aluminum parts, its processing cost is only 1/4 of the processing cost of aluminum parts. In addition, existing technology can be used to weld the required brackets on the anti-collision beam, the processing cost is low, the processing technology is mature, and it is suitable for popularization and application.

comparative example

As shown in Figure 5, it is the existing all-aluminum automobile anti-collision beam frame assembly, the energy-absorbing box 2 and the bottom plate 3 are connected by welding, and the energy-absorbing box 2 and the bumper frame beam 1 are usually connected by welding. The process has higher requirements on the matching welding surface of the bumper frame beam 1 and the crash box 2 . Generally, the profile is required to be within 0.5mm, otherwise defects such as insufficient welding penetration and virtual welding will be caused during the welding process. Insufficient assembly strength. In addition, due to the low hardness of the aluminum bumper frame crossbeam, it is easy to deform in the 40% frontal collision process, so that the energy-absorbing box cannot play the role of energy absorption well under the lateral force.

In addition, it should be understood that after reading the above teaching content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Claims (10)

1. An automobile anti-collision beam skeleton assembly, characterized in that, the automobile anti-collision beam skeleton assembly comprises: Steel bumper skeleton beam; Two aluminum energy-absorbing boxes are respectively arranged at the two ends of the bumper frame beam; The two bottom plates are respectively arranged at the bottom ends of the two aluminum crash boxes. 2. The automobile anti-collision beam frame assembly according to claim 1, characterized in that, the bumper frame beam is formed by roll bending of a steel plate. 3. The automobile anti-collision beam frame assembly according to claim 1, characterized in that, the bumper frame beam and the crash box are connected by bolts or screws. 4. The automobile anti-collision beam frame assembly according to claim 1, wherein the bumper frame beam is arc-shaped. 5. The automobile anti-collision beam frame assembly according to claim 1, characterized in that, the bottom plate is an aluminum bottom plate. 6. The automobile anti-collision beam frame assembly according to claim 1, wherein the bottom plate and the crash box are connected by welding. 7. The automobile anti-collision beam skeleton assembly according to claim 1, characterized in that, the automobile anti-collision beam skeleton assembly further comprises a tow hook nut. 8. The automobile anti-collision beam skeleton assembly according to claim 7, wherein the tow hook nut is an aluminum tow hook nut, which is connected to the energy-absorbing box through a screw reinforcement block; or The tow hook nut is a steel tow hook nut, which is welded on the steel bumper skeleton beam. 9. The automobile anti-collision beam frame assembly according to claim 8, wherein the screw reinforcement block is arranged between the steel bumper frame beam and the energy-absorbing box, and the bolts are used to secure the The energy-absorbing box, the screw reinforcement block and the steel bumper frame beam are connected together. 10. The automobile anti-collision beam frame assembly according to claim 8, characterized in that, the tow hook nut is integrally welded to the screw reinforcement block, or integrally formed by integral extrusion.