CN210363700U

CN210363700U - Front anti-collision beam of automobile

Info

Publication number: CN210363700U
Application number: CN201920698665.2U
Authority: CN
Inventors: 孙辉; 程文生
Original assignee: Guizhou Changjiang Automobile Co ltd
Current assignee: Guizhou Changjiang Automobile Co ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-04-21
Anticipated expiration: 2029-05-16

Abstract

The utility model discloses an automobile front anti-collision beam, which comprises an anti-collision beam body, wherein the left end and the right end of the anti-collision beam body are respectively provided with a left energy absorption box and a right energy absorption box, the anti-collision beam body is of a convex arc structure, and the front part of the anti-collision beam body is provided with a reinforced front plate matched with the convex arc structure; the reinforced front plate is in a [ -shape, so that the anti-collision beam body is nested in the [ -shape, a buffer gap is reserved between the anti-collision beam body and the reinforced front plate, the strength and the rigidity of the anti-collision beam body are integrally improved, and when an automobile collides, the impact force on the automobile body can be effectively absorbed and simplified, and the safety of the automobile body and drivers and passengers is guaranteed; the anti-collision beam body, the reinforcing front plate and the left and right energy absorption boxes are all integrally formed by extrusion of aluminum alloy, and the aluminum alloy has the advantages of light overall weight, high tensile strength, small offset, low cost, simple process and the like compared with the traditional sheet metal anti-collision beam; and all component parts are connected by MIG welding, so that the device has reliable performance, uniform stress, capability of effectively improving impact force transmission and strong practicability.

Description

Front anti-collision beam of automobile

Technical Field

The utility model relates to an anticollision roof beam before car belongs to automobile manufacturing technical field.

Background

With the popularization of automobiles and the maturation of automobile technology at the present stage, customers pay more and more attention to the safety performance of automobiles, when the automobiles collide, the front anti-collision beam of the automobile is used as a key part for the collision safety of the automobile, and the design of the structure plays a decisive role in the collision safety performance of the automobile.

The front anti-collision beam is positioned at the foremost end of the vehicle body and is connected with the longitudinal beam through the energy absorption device behind the bumper. The first function of the anti-collision beam is to disperse energy to the energy absorption device through a high-strength structure of the anti-collision beam under low-speed collision so as to reduce the damage degree of a vehicle during low-speed collision and further reduce the maintenance cost. The other function is to uniformly transmit collision energy to main bearing components such as left and right side members in a high-speed collision.

At present, the front anti-collision beam of the automobile generally adopts steel parts which are respectively composed of an outer plate of the collision beam and an inner plate of the collision beam, the parts have the problem of difficult springback control on the forming process, the springback fluctuation of the parts is large after the welding is finished, and the quality control, the size precision and the collision performance in the later period are greatly influenced. In addition, the high-strength steel parts are adopted, so that the performance of absorbing impact energy is weaker, and the steel has strong strength and is difficult to collapse for low-speed collision, so that the pedestrian is not protected. The two ends of the front bumper are required to be particularly strong during collision, and the steel part structure between the two ends is difficult to balance. Meanwhile, due to the influence of the density of steel parts, the front collision beam is generally heavy and is difficult to meet the requirement of vehicle body light weight.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide this crashproof roof beam before car can overcome prior art's not enough.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a front anti-collision beam of an automobile comprises an anti-collision beam body, wherein left and right energy absorption boxes are respectively arranged at the left and right ends of the anti-collision beam body, the anti-collision beam body is of a convex arc structure, and a reinforcing front plate matched with the convex arc structure is arranged at the front part of the anti-collision beam body; the reinforced front plate is in a [ -shape, so that the anti-collision beam body is nested in the [ -shape, and a buffer gap is reserved between the anti-collision beam body and the [ -shape; the anti-collision beam body, the reinforcing front plate and the left and right energy absorption boxes are all integrally formed by extrusion of aluminum alloy.

The connecting ends of the left and right energy absorption boxes and the anti-collision beam body are of a fork-shaped structure, so that the left and right energy absorption boxes are in fork connection with the anti-collision beam body, and notches corresponding to the fork-shaped structure are arranged at two ends of the reinforced front plate, so that the left and right energy absorption boxes, the anti-collision beam body and the reinforced front plate are fixedly connected by welding the fork-shaped structure and the notches.

The other ends of the left and right energy absorption boxes are respectively connected with the left and right front longitudinal beams through left and right end plates; the middle parts of the left end plate and the right end plate are provided with lightening holes which are formed by integrally extruding and forming aluminum alloy.

The section of the anti-collision beam body is in a shape of Chinese character ri; the sections of the left and right energy absorption boxes are shaped like a Chinese character tian.

Compared with the prior art, the utility model discloses an automobile front anti-collision beam, it improves current automobile front anti-collision beam structure, at first, increased the reinforcement front bezel in the front portion of the anti-collision beam body, the reinforcement front bezel is "[" shape, make the anti-collision beam body nest in "[" shape, and leave the buffering clearance between the two, make form the buffering cavity between anti-collision beam body and the reinforcement front bezel, it has improved the intensity and the rigidity of the anti-collision beam body wholly, when the vehicle receives the striking, the impact loops through reinforcement front bezel, the anti-collision beam body transmits to the left and right energy-absorbing box at the rear portion of anti-collision beam body, reduce the destruction to the car of the collision; secondly, the anti-collision beam body, the reinforcing front plate and the left and right energy absorption boxes are all integrally formed by extrusion of aluminum alloy, so that the anti-collision beam is light in weight, the processing technology is simplified, and the production efficiency and the processing quality are improved.

The anti-collision beam comprises an anti-collision beam body, wherein the anti-collision beam body is provided with a reversed-Y-shaped section and a convex arc structure, and the energy absorption box is provided with a reversed-Z-shaped section structure.

The utility model has simple structure, low manufacturing cost, high structural strength and rigidity, and can effectively absorb and simplify the impact force to the automobile body when the automobile collides, thereby ensuring the safety of the automobile body and the drivers and passengers; the aluminum alloy has the advantages of light weight, high tensile strength, small offset, low cost, simple process and the like compared with the traditional sheet metal anti-collision beam; and all component parts are connected by MIG welding, so that the device has reliable performance, uniform stress, capability of effectively improving impact force transmission and strong practicability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structure diagram of the present invention after being disassembled.

Fig. 3 is a schematic view of the cross-sectional structure a-a in fig. 2.

Fig. 4 is a schematic view of a cross-sectional structure B-B in fig. 2.

Fig. 5 is a schematic view of the cross-sectional structure C-C of fig. 2.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention:

as shown in fig. 1 to 5, an automobile front anti-collision beam comprises an anti-collision beam body 1, wherein left and right ends of the anti-collision beam body 1 are respectively provided with a left energy absorption box and a right energy absorption box 2, the anti-collision beam body 1 is of a convex arc structure, and the front part of the anti-collision beam body is provided with a reinforcing front plate 5 matched with the convex arc structure; the reinforced front plate 5 is in a [ -shape, so that the anti-collision beam body 1 is nested in the [ -shape, and a buffer gap is reserved between the reinforced front plate and the reinforced front plate, so that a buffer cavity is formed between the anti-collision beam body 1 and the reinforced front plate 5, specifically, the connecting ends of the left and right energy absorption boxes 2 and the anti-collision beam body 1 are in a fork-shaped structure 201, so that the left and right energy absorption boxes 2 are in fork connection on the anti-collision beam body 1 through the fork-shaped structure 201, the two ends of the reinforced front plate 5 are provided with notches 501 corresponding to the fork-shaped structure 201, and the fork-shaped structure 201 and the notches 501 are welded through MIG (metal.

The other ends of the left and right energy absorption boxes 2 are respectively connected with left and right front longitudinal beams through left and right end plates 3; the left end plate 3 and the right end plate 3 are integrally formed by aluminum alloy in a stamping mode, lightening holes 301 are formed in the middle of the left end plate and the right end plate, and the weight of parts is reduced.

The anti-collision beam body 1 is made of aluminum alloy, is integrally formed through extrusion, has a structure with a section shaped like a Chinese character 'ri', has the same section as a whole body, is of a convex arc structure and has strong structural strength.

The mounting hole of intercommunication is arranged to 5 one sides at crashproof roof beam body 1 and reinforcing front bezel for installation trailer screwed pipe 4, trailer screwed pipe 4 passes through MIG welding welded fastening on crashproof roof beam body 1 and reinforcing front bezel 5.

The left and right energy absorption boxes 2 are made of aluminum alloy and are integrally formed through extrusion, the structure is a cross section shaped like a Chinese character 'tian', the whole cross section is the same, and the energy absorption boxes can collapse when colliding and can effectively absorb collision impact energy.

When an automobile collides, the front reinforcing plate 5 and the anti-collision beam body (1) are sequentially stressed to deform, part of the energy is absorbed, meanwhile, the impact force is uniformly transmitted to the left and right energy absorption boxes 2, the left and right energy absorption boxes 2 are collapsed, the impact energy is further absorbed, meanwhile, the impact force is transmitted to the left and right end plates 3 and the front longitudinal beam, and the damage of the collision to the automobile is reduced.

Claims

1. The utility model provides an anticollision roof beam before car, includes anticollision roof beam body (1), and energy-absorbing box (2), its characterized in that about its both ends are equipped with respectively: the anti-collision beam body (1) is of a convex arc structure, and the front part of the anti-collision beam body is provided with a reinforced front plate (5) matched with the convex arc structure; the reinforced front plate (5) is in a [ -shape, so that the anti-collision beam body (1) is nested in the [ -shape, and a buffer gap is reserved between the anti-collision beam body and the [ -shape; the anti-collision beam body (1), the reinforced front plate (5) and the left and right energy absorption boxes (2) are all integrally formed by extrusion of aluminum alloy.

2. The automotive front impact beam of claim 1, wherein: the connecting end of the left and right energy absorption boxes (2) and the anti-collision beam body (1) is of a fork-shaped structure (201), so that the left and right energy absorption boxes (2) are in cross connection with the anti-collision beam body (1), gaps (501) corresponding to the fork-shaped structure (201) are formed at two ends of the reinforcing front plate (5), and the fork-shaped structure (201) and the gaps (501) are welded to form fixed connection.

3. The automotive front impact beam of claim 2, wherein: the other ends of the left and right energy absorption boxes (2) are respectively connected with left and right front longitudinal beams through left and right end plates (3); the middle parts of the left end plate and the right end plate (3) are provided with lightening holes which are formed by integrally extruding and forming aluminum alloy.

4. The automotive front impact beam of claim 1, wherein: the section of the anti-collision beam body (1) is in a shape of Chinese character 'ri'; the sections of the left and right energy absorption boxes (2) are shaped like Chinese character 'tian'.