CN212172358U - Automobile front longitudinal beam assembly structure - Google Patents

Abstract

The utility model discloses an automobile front longitudinal beam assembly structure, which comprises a front longitudinal beam front section assembly consisting of a front longitudinal beam front section outer plate assembly and a front longitudinal beam front section side plate; the front longitudinal beam front section outer plate assembly comprises a front section inner reinforcing plate, a front section inner plate and a front longitudinal beam front section outer plate, the front section inner plate and the front longitudinal beam front section outer plate are of groove structures, and the front section inner reinforcing plate and the front section inner plate are fixed in an inner cavity of the front longitudinal beam front section outer plate; the front end of the front section inner plate is flush with the front end of the front section outer plate of the front longitudinal beam, the front end of the front section inner reinforcing plate is lapped with the rear end of the front section inner plate and then welded and fixed, the top surfaces of the front section inner reinforcing plate and the front section inner plate are both attached and fixed with the inside of the top surface of the front section outer plate of the front longitudinal beam, and the front end of the front section inner reinforcing plate, the front end; the front longitudinal beam front section side plate is arranged at an opening of a front longitudinal beam front section outer plate of the front longitudinal beam front section outer plate assembly and is welded with flanging surfaces on two sides of the opening in a fitting manner. The problem of current front longitudinal receive the power buffering behind the front collision and release less is solved.

Description

Automobile front longitudinal beam assembly structure

Technical Field

The utility model belongs to the technical field of auto-parts, a longeron assembly structure before car is related to.

Background

The automobile front longitudinal beam assembly is positioned on two sides below an automobile engine and is a framework of an automobile, and key parts such as the engine, a gearbox, an auxiliary frame and a front suspension assembly are arranged on the framework. The front longitudinal beam is generally formed by stamping a low-alloy steel plate, the end face of a part is generally in a groove shape or an I shape, the front part of the automobile front longitudinal beam belongs to an energy absorption area, once collision occurs, buffering deformation and crumpling are generated, collision energy is absorbed through crushing deformation and bending deformation of the front part, but the problem that the self force buffering and releasing capacity of the front longitudinal beam is weak after the front collision is applied to the existing front longitudinal beam is solved while the crumpling energy absorption effect of the front longitudinal beam is improved.

For the crumple energy-absorbing effect that contracts of improvement front longitudinal to promote and receive the power buffering and the releasing power of place ahead collision back longeron self, the utility model patent of publication number CN208119256U, the name is a car front longitudinal assembly discloses a car front longitudinal assembly structure, and the intensity at this car front longitudinal assembly structure's front longitudinal anterior segment planking rear portion installation engine position is not enough, produces direct damage to the engine after receiving the collision easily.

Disclosure of Invention

An object of the embodiment of the utility model is to provide a longeron assembly structure before car to solve current longeron before car and for improving the energy-absorbing effect of ulcerating and contract and cause its self to receive the power buffering after the place ahead collision and release more weak problem, and current longeron assembly before car easily produces the problem of direct damage to the engine after receiving the collision.

The embodiment of the utility model adopts the technical proposal that the automobile front longitudinal beam assembly structure comprises a front longitudinal beam front section assembly which consists of a front longitudinal beam front section outer plate assembly and a front longitudinal beam front section side plate;

the front longitudinal beam front section outer plate assembly comprises a front section inner reinforcing plate, a front section inner plate and a front longitudinal beam front section outer plate, the front section inner plate and the front longitudinal beam front section outer plate are of groove-shaped structures, and the front section inner reinforcing plate and the front section inner plate are fixed in an inner cavity of the front longitudinal beam front section outer plate; the front end of the front section inner plate is flush with the front end of the front section outer plate of the front longitudinal beam, the front end of the front section inner reinforcing plate is lapped with the rear end of the front section inner plate and then welded and fixed, the top surfaces of the front section inner reinforcing plate and the front section inner plate are both attached and fixed with the inside of the top surface of the front section outer plate of the front longitudinal beam, and the front end of the front section inner reinforcing plate and the front end of the front section inner;

and the front longitudinal beam front section outer plate of the front longitudinal beam front section side plate and the front longitudinal beam front section outer plate assembly are welded in a fitting manner.

Furthermore, a first longitudinal reinforcing rib is arranged at the front part of the front section inner plate, the first longitudinal reinforcing rib vertically and inwards sinks from the top surface, the bottom surface and the side surface of the front section inner plate respectively, and the first longitudinal reinforcing ribs on the top surface, the bottom surface and the side surface of the front section inner plate are communicated in sequence;

the front part of the front longitudinal beam front section outer plate is provided with a second longitudinal reinforcing rib, the second longitudinal reinforcing rib vertically and inwards sinks from the top surface, the bottom surface and the side surface of the front longitudinal beam front section outer plate respectively, and the second longitudinal reinforcing ribs on the top surface, the bottom surface and the side surface of the front longitudinal beam front section outer plate are communicated in sequence.

Furthermore, a first long-strip-shaped reinforcing rib formed by inwards sinking is arranged on the outer plate of the front section of the front longitudinal beam, a second long-strip-shaped reinforcing rib formed by inwards sinking is arranged on the inner plate of the front section, and the first long-strip-shaped reinforcing rib and the second long-strip-shaped reinforcing rib are the same in shape and size and are corresponding in position.

Furthermore, the front part of the front longitudinal beam front section side plate is provided with a long strip-shaped convex reinforcing rib which protrudes outwards;

the front section inner reinforcing plate is W-shaped.

Furthermore, a suspension mounting plate assembly, a suspension fixing support assembly and a front vibration damping assembly front section connecting plate which are buckled and welded on the top surface and the side surface of the front longitudinal beam front section outer plate are sequentially arranged on the front longitudinal beam front section outer plate from front to back, and the suspension mounting plate assembly, the suspension fixing support assembly and the front vibration damping assembly front section connecting plate are simultaneously welded and connected with the front longitudinal beam front section side plate;

the end surface of the front section connecting plate of the front vibration damping assembly is in a pi shape;

the suspension mounting plate assembly and the suspension fixing support assembly are arranged in a collinear mode, and mounting holes in the suspension mounting plate assembly and the mounting holes in the suspension fixing support assembly are 150mm apart.

Furthermore, a brake mounting bracket is welded on the rear portion of the right side of the front longitudinal beam front section side plate in the width direction, the brake mounting bracket is integrally bent in an L shape, one side of the brake mounting bracket is welded on the front longitudinal beam front section side plate in an attaching mode, and the other side of the brake mounting bracket is provided with a mounting and fixing through hole for the brake control hose to penetrate through.

Furthermore, a front lower hanger assembly used for installing a front anti-collision beam is welded at the front end of the front longitudinal beam front section assembly, the front lower hanger assembly comprises a front lower hanger outer plate, the front lower hanger outer plate is welded at the front end of the front longitudinal beam front section assembly, an upper nut reinforcing plate is fixed at the upper part of the front lower hanger outer plate, a lower nut reinforcing plate is fixed at the lower part of the front lower hanger outer plate, and the upper nut reinforcing plate and the lower nut reinforcing plate are both of rectangular structures; and the outer plate of the front lower hanger is provided with a positioning hole with the aperture consistent with the diameter of the positioning pin of the front anti-collision beam.

Furthermore, the outer plate of the front lower hanging bracket consists of a front end surface and a side surface, and the side surface of the outer plate of the front lower hanging bracket is vertically fixed on one side of the front end surface; the upper part of the side surface of the outer plate of the front lower hanger is jointed and welded with the side surface of the front section of the outer plate of the front longitudinal beam, and the other side of the front end surface of the outer plate of the front lower hanger is jointed and welded with the front section flanging of the front section side plate of the front longitudinal beam;

the upper nut reinforcing plate, the lower nut reinforcing plate and the positioning hole are all arranged on the front end face of the front lower hanger outer plate;

the front lower hanging bracket assembly also comprises a front lower hanging bracket rear plate, a front lower hanging bracket reinforcing plate and a lower hanging bracket side cover plate for fixing a windscreen wiper spray kettle water pipe; the rear plate of the front lower hanger is vertically welded to the lower part of the side surface of the outer plate of the front lower hanger, and the top of the rear plate of the front lower hanger is jointed and welded with the outer plate of the front section of the front longitudinal beam; the front flanging of the front lower hanger reinforcing plate is jointed and welded with the bottom of the front end surface of the front lower hanger outer plate, the rear flanging of the front lower hanger reinforcing plate is jointed and welded with the bottom of the front lower hanger rear plate, and the left flanging of the front lower hanger reinforcing plate is jointed and welded with the bottom of the side surface of the front lower hanger outer plate;

the side cover plate of the lower hanger is fixed on the outer side of the lower portion of the front lower hanger assembly, the front flange of the side cover plate is welded with the front end face of the front lower hanger outer plate in a parallel and level mode with the lower portion of the side plate of the front longitudinal beam front section, the rear flange of the side cover plate of the front lower hanger is welded with the rear plate of the front lower hanger in a parallel and level mode with the side face of the side plate of the front lower hanger outer plate in a parallel and level mode, the upper flange of the side cover plate of the front lower hanger is welded with.

Furthermore, an auxiliary frame front mounting plate assembly is welded at the rear end of the front section assembly of the front longitudinal beam and comprises a front mounting plate reinforcing plate and an auxiliary frame front mounting plate, the front mounting plate reinforcing plate is welded on the inner side of the bottom surface of the front section outer plate of the front longitudinal beam, the auxiliary frame front mounting plate is welded on the lower side of the outer side of the bottom surface of the front section outer plate of the front longitudinal beam, and the positions of the front mounting plate reinforcing plate and the auxiliary frame front mounting plate are symmetrically arranged relative to the bottom surface of;

the middle part of the auxiliary frame front mounting plate is sunken downwards to form a cavity shape so as to increase the strength of the auxiliary frame mounting plate;

the center of sub vehicle frame front mounting panel and front mounting panel reinforcing plate is equipped with the sub vehicle frame mounting stud that runs through sub vehicle frame front mounting panel perpendicularly downwards.

Furthermore, a wire harness support bolt for installing an anti-lock brake system is welded below the brake installation support.

The utility model discloses beneficial effect is, the structure to anterior segment inner panel and front longitudinal beam anterior segment planking has carried out the redesign, set up in the front longitudinal beam anterior segment planking with anterior segment inner panel around the lapped anterior segment interior reinforcing plate that is the W shape, the reinforcing plate can be strengthened engine vibration isolator installation position in the anterior segment of setting, can improve the side direction support of front longitudinal beam anterior segment planking, and become the W type with the shape design of reinforcing plate in the anterior segment, the lateral strength of front longitudinal beam has been improved, can eliminate the release of automobile front portion collision back strength, can not produce direct damage to the engine. A first sunken longitudinal reinforcing rib is arranged on the front section inner plate, and a second sunken longitudinal reinforcing rib is arranged on the front section outer plate of the front longitudinal beam and serves as a first collision collapse energy absorption point; a second strip-shaped reinforcing rib which is formed by inwards sinking is arranged on the outer plate at the front section of the front longitudinal beam and is used as a second collision crumple energy absorption point of the front longitudinal beam; the front part of the front longitudinal beam front section side plate is provided with a long strip-shaped convex reinforcing rib protruding outwards, the long strip-shaped convex reinforcing rib serves as a third collision crumple energy absorption point, a three-level collision crumple energy absorption point is arranged, the crumple energy absorption effect of the front longitudinal beam is guaranteed while the longitudinal strength of the front longitudinal beam is enhanced, and the front longitudinal beam has strong lateral supporting force while the good crumple energy absorption effect is guaranteed. And set up rectangular form strengthening rib and trilateral continuous vertical strengthening rib simultaneously on front section inner panel and front longitudinal anterior segment planking for the car is meetting the place ahead and collides the back, and the collision force contracts along longeron length direction, and the unilateral skew is not crumpled to contract, and then makes the longeron can not outwards be opened, has guaranteed that the engine is not directly by the striking. In addition, a front lower hanger assembly is welded at the front end of the front longitudinal beam front section assembly, and a conventional fixed plate at the front section of the longitudinal beam is changed into the front lower hanger assembly, so that the front anti-collision beam and the front longitudinal beam can be ensured to have enough strength after being connected; the front mounting plate assembly of the auxiliary frame is welded at the front end of the front longitudinal beam front section assembly, the front mounting plate reinforcing plate is welded on the inner side of the bottom surface of the front longitudinal beam front section outer plate, the distance between the front mounting plate reinforcing plate and the auxiliary frame front mounting plate is shortened, the control torque of the auxiliary frame mounting stud is increased, the position precision of the auxiliary frame mounting stud is guaranteed, the positioning precision of the auxiliary frame and a front wheel is further improved, the middle part of the auxiliary frame front mounting plate is sunken downwards to form a cavity, and the strength of the auxiliary frame front mounting plate is increased. Structural design is reasonable, has solved current front longitudinal and has made itself receive the power buffering and the weak problem of release behind the place ahead collision for improving front longitudinal's the energy-absorbing effect of bursting and contract to and current car front longitudinal assembly easily produces direct damage's problem to the engine after receiving the collision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall structure schematic diagram of the automobile front longitudinal beam assembly of the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the front longitudinal beam assembly of the embodiment of the present invention.

Fig. 3 is a schematic structural view of the front-section inner reinforcing plate according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an inner plate of a front section according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a brake mounting bracket according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of the front mounting plate assembly of the subframe according to the embodiment of the present invention.

Fig. 7 is a schematic view illustrating a connection between a front lower hanger assembly and a front longitudinal front side plate according to an embodiment of the present invention.

Fig. 8 is a schematic view illustrating a connection between a front lower hanger assembly and a front longitudinal beam front section outer plate according to an embodiment of the present invention.

In the drawing, 1, a front lower hanger assembly, 3, an auxiliary frame front mounting plate assembly, 4, an upper nut reinforcing plate, 5, a front lower hanger outer plate, 6, a lower nut reinforcing plate, 7, a positioning hole, 8, a brake mounting bracket, 9, a mounting and fixing through hole, 10, a wire harness bracket bolt, 11, a front longitudinal beam front section side plate, 12, a front damping assembly front section connecting plate, 13, a suspension fixing bracket assembly, 14, a suspension mounting plate assembly, 15, a front section inner reinforcing plate, 16, a front section inner plate, 17, a lower hanger side cover plate, 18, a front mounting plate reinforcing plate, 19, an auxiliary frame front mounting plate, 20, an auxiliary frame mounting stud, 21, a first strip reinforcing rib, 22, a second strip reinforcing rib, 23, a convex reinforcing rib, 24, a first longitudinal reinforcing rib, 25, a second longitudinal reinforcing rib, 26, a front longitudinal beam front section outer plate, 27, a front lower hanger rear plate, 28, a front lower hanger reinforcing plate, 30. front longitudinal beam front section assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment provides an automobile front longitudinal beam assembly structure, as shown in fig. 1, comprising a front longitudinal beam front section assembly 30 composed of a front longitudinal beam front section outer plate assembly and a front longitudinal beam front section side plate 11, the front longitudinal beam front section outer plate assembly is used for mounting an engine, a front axle (front suspension) and a subframe, and comprises a front section inner reinforcing plate 15, a front section inner plate 16 and a front longitudinal beam front section outer plate 26, the front section inner reinforcing plate 16 and the front longitudinal beam front section outer plate 26 are of groove-shaped structures, the front section inner reinforcing plate 15 and the front section inner plate 16 are fixed in an inner cavity of the front longitudinal beam front section outer plate 26, the front end of the front section inner plate 16 is flush with the front end of the front longitudinal beam front section outer plate 26, the front end of the front section inner reinforcing plate 15 is welded and fixed with the rear end of the front section inner plate 16, specifically, the lap joint is 15mm welding, and the top surfaces of the front section inner reinforcing plate 15 and the front, the automobile engine compartment shock insulation cushion is used for mounting an engine shock insulation cushion, and the groove-shaped cavity assembly enables the strength of the front longitudinal beam to be increased and the weight to be greatly reduced, so that the weight of the automobile engine compartment is reduced. The front longitudinal beam front section side plate 11 is arranged at an opening of a front longitudinal beam front section outer plate 26 of the front longitudinal beam front section outer plate assembly, and is attached to and welded with flanging surfaces on two sides of the opening of the front longitudinal beam front section outer plate 26 to form a box body structure, namely the front longitudinal beam front section assembly 30, and the formed box body structure further enhances the strength and rigidity of the front longitudinal beam front section outer plate assembly.

As shown in fig. 1, a front longitudinal beam front section outer plate 26 is sequentially provided with a suspension mounting plate assembly 14, a suspension fixing support assembly 13 and a front vibration damping assembly front section connecting plate 12, the top surface and the side surface of which are welded in a buckling manner, from front to back, the front vibration damping assembly front section connecting plate 12 is in a pi shape, the suspension mounting plate assembly 14, the suspension fixing support assembly 13 and the front vibration damping assembly front section connecting plate 12 are simultaneously welded with the front longitudinal beam front section side plate 11, the suspension mounting plate assembly 14 and the suspension fixing support assembly 13 are arranged in a collinear manner, and the distance between mounting holes of the two is 150 mm. The rear end welding of front longitudinal beam anterior segment assembly 30 has sub vehicle frame front mounting plate assembly 3, and the welding of front longitudinal beam anterior segment assembly 30 front end has the preceding gallows assembly 1 down that is used for the preceding crashproof roof beam of installation, changes the conventional fixed plate of longeron anterior segment into preceding gallows assembly 1 down, and the purpose is in order to solve current automobile front longitudinal beam and receive the power buffering of self and release weaker problem behind the place ahead collision.

As shown in fig. 2 to 3, the front inner reinforcement plate 15 is W-shaped, and the front inner reinforcement plate 15 is provided to reinforce the engine mount and to improve the lateral support of the front side member front outer plate 26 by welding the integral front inner reinforcement plate 15 to the front side member front outer plate 26. The cross section of the front section inner reinforcing plate 15 is designed into a W shape, so that the release of force after the front part of the automobile collides can be eliminated, and the direct damage to an engine can not be generated.

As shown in fig. 2, a second longitudinal reinforcing rib 25 is provided at the front part of the front side member front section outer plate 26, the second longitudinal reinforcing rib 25 is vertically recessed inward from the top surface, the bottom surface and the side surface of the front side member front section outer plate 26, and the second longitudinal reinforcing ribs 25 located on the top surface, the bottom surface and the side surface of the front side member front section outer plate 26 are sequentially communicated. As shown in fig. 2 and 4, a first longitudinal reinforcing rib 24 is provided at the front portion of the front-section inner panel 16, the first longitudinal reinforcing rib 24 is vertically recessed from the top surface, the bottom surface and the side surfaces of the front-section inner panel 16, and the first longitudinal reinforcing ribs 24 on the top surface, the bottom surface and the side surfaces of the front-section inner panel 16 are sequentially communicated. The first longitudinal reinforcing rib 24 and the second longitudinal reinforcing rib 25 are arranged, so that the longitudinal strength of the front longitudinal beam is enhanced, and when the front longitudinal beam is collided, the front longitudinal beam can collapse at the sunken positions of the first longitudinal reinforcing rib 24 and the second longitudinal reinforcing rib 25, namely, a first collision collapse energy absorption point is obtained, the collapse energy absorption effect of the front longitudinal beam is ensured, and the lateral support of the front longitudinal beam is improved.

As shown in fig. 2, the front part of the side surface of the front side member front section outer plate 26 is provided with a first elongated reinforcing rib 21 formed by inward recess, the side surface of the front section inner plate 16 is provided with a second elongated reinforcing rib 22 formed by inward recess, and the first elongated reinforcing rib 21 and the second elongated reinforcing rib 22 have the same shape and size and correspond in position to reduce the acting force after the front part of the automobile collides, that is, to serve as a second collision collapse energy-absorbing point. Meanwhile, the front part of the front longitudinal beam front section side plate 11 is provided with the long strip-shaped protruding reinforcing ribs 23 protruding outwards, the positions of the long strip-shaped protruding reinforcing ribs 23 correspond to the positions of the first longitudinal reinforcing ribs 24, and when the front longitudinal beam is collided, the long strip-shaped protruding reinforcing ribs 23 can collapse at the positions corresponding to the concave positions of the first longitudinal reinforcing ribs 24, namely, the third collision collapse energy absorption point is obtained, so that the collapse energy absorption effect of the front longitudinal beam is guaranteed, and the lateral support of the front longitudinal beam is improved. The collision crumple energy absorption point is formed by sequentially crumpling and deforming metal materials with different strengths between a vehicle head and a cab when collision occurs, so that certain safe buffering time is provided for passengers. Circular process positioning holes are formed between the first long strip reinforcing rib 21 and the second long strip reinforcing rib 25 of the front longitudinal beam front section outer plate 26 and between the first long strip reinforcing rib 24 and the second long strip reinforcing rib 22 of the front section inner plate 16, so that the accuracy of parts in punch forming and welding positioning is guaranteed.

As shown in fig. 2 and 5, a brake mounting bracket 8 is welded to the rear portion of the right side of the front side member front section side plate 11 in the width direction, the brake mounting bracket 8 is integrally bent in an L shape, one side of the brake mounting bracket is welded to the front side member front section side plate 11 in an attaching manner, a mounting and fixing through hole 9 for a brake to control a soft pipeline to pass through is formed in the other side of the brake mounting bracket, and a wire harness support bolt 10 for mounting an anti-lock brake system, i.e., ABS, is welded below the brake.

As shown in fig. 2, the front lower hanger assembly 1 includes a front lower hanger outer plate 5, the front lower hanger outer plate 5 is welded at the front end of the front longitudinal beam front section assembly 30, an upper nut reinforcing plate 4 is fixed at the upper part of the front lower hanger outer plate, a lower nut reinforcing plate 6 is fixed at the lower part of the front lower hanger outer plate, and the upper nut reinforcing plate 4 and the lower nut reinforcing plate 6 are both rectangular structures and are both used for installing a front anti-collision beam. And the front lower hanger outer plate 5 is provided with a positioning hole 7 with the diameter being consistent with the diameter of the front anti-collision beam positioning pin, and the size of the positioning hole 7 is consistent with the diameter of the front anti-collision beam positioning pin and is used for positioning the front anti-collision beam pin hole, so that the front lower hanger outer plate can be conveniently and quickly positioned and installed on the plane of the front lower hanger assembly 1 at the front end of the front longitudinal beam during the assembly of the front anti-collision beam. Meanwhile, due to the fact that the upper nut reinforcing plate 4 and the lower nut reinforcing plate 6 are arranged, the front anti-collision beam can be guaranteed to have enough strength after being connected with the front longitudinal beam.

Specifically, the front lower hanger outer plate 5 is composed of a front end face and a side face, the side face of the front lower hanger outer plate 5 is vertically fixed to one side of the front end face, and the upper nut reinforcing plate 4, the lower nut reinforcing plate 6 and the positioning hole 7 are all arranged on the front end face of the front lower hanger outer plate 5. The upper side of the front lower hanger outer plate 5 is welded to the front section side of the front side member front section outer plate 26 in a fitting manner, and the other side of the front end face of the front lower hanger outer plate 5 is welded to the front section flange of the front side member front section side plate 11 in a fitting manner, as shown in fig. 7 to 8.

The front lower hanger assembly 1 also comprises a front lower hanger rear plate 27, a front lower hanger reinforcing plate 28 and a lower hanger side cover plate 17 for fixing a windscreen wiper spray kettle water pipe; the front lower hanger rear plate 27 is vertically welded to the lower part of the side surface of the front lower hanger outer plate 5, and the top of the front lower hanger rear plate is jointed and welded with the front longitudinal beam front section outer plate 26; the front flanging of the front lower hanger reinforcing plate 28 is jointed and welded with the bottom of the front end face of the front lower hanger outer plate 5, the rear flanging thereof is jointed and welded with the bottom of the front lower hanger rear plate 27, and the left flanging thereof is jointed and welded with the bottom of the side face of the front lower hanger outer plate 5. The lower hanger side cover plate 17 is fixed on the outer side of the lower portion of the front lower hanger assembly 1, the front flange of the lower hanger side cover plate is welded with the front end face of the front lower hanger outer plate 5 in a parallel and level mode with the lower portion of one side of the front longitudinal beam front section side plate 11, the rear flange of the lower hanger side cover plate is welded with the front lower hanger rear plate 27 in a parallel and level mode with one side of the side face of the front lower hanger outer plate 5 in a parallel and level mode, the upper flange of the lower hanger side cover plate is welded with the front lower portion flange of the front longitudinal.

As shown in fig. 2 and 6, the subframe front mounting plate assembly 3 includes a front mounting plate reinforcing plate 18 and a subframe front mounting plate 19, and the front mounting plate reinforcing plate 18 is used for reinforcing the position accuracy of the subframe mounting stud 20 and ensuring the position stability of the subframe. The middle part of the auxiliary frame front mounting plate 19 is sunken downwards to form a cavity shape, so that the strength of the auxiliary frame mounting plate is increased, and the position precision of the auxiliary frame mounting stud 20 is further ensured. The front mounting plate reinforcement plate 18 is welded to the inner side of the bottom surface of the front side member front section outer plate 26, and the sub-frame front mounting plate 19 is welded to the outer side of the bottom surface of the front side member front section outer plate 26, at positions corresponding to each other, as shown in fig. 6. And the centers of the front mounting plate 19 and the front mounting plate reinforcing plate 18 of the auxiliary frame are provided with auxiliary frame mounting studs 20 which vertically penetrate through the front mounting plate 19 of the auxiliary frame downwards, and the auxiliary frame mounting studs 20 are used for mounting an auxiliary frame assembly.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. An automobile front longitudinal beam assembly structure is characterized by comprising a front longitudinal beam front section assembly (30) consisting of a front longitudinal beam front section outer plate assembly and a front longitudinal beam front section side plate (11);

the front longitudinal beam front section outer plate assembly comprises a front section inner reinforcing plate (15), a front section inner plate (16) and a front longitudinal beam front section outer plate (26), the front section inner plate (16) and the front longitudinal beam front section outer plate (26) are of groove structures, and the front section inner reinforcing plate (15) and the front section inner plate (16) are fixed in an inner cavity of the front longitudinal beam front section outer plate (26); the front end of the front section inner plate (16) is flush with the front end of the front section outer plate (26) of the front longitudinal beam, the front end of the front section inner reinforcing plate (15) is lapped with the rear end of the front section inner plate (16) and then welded and fixed, the top surfaces of the front section inner reinforcing plate (15) and the front section inner plate (16) are both attached and fixed with the inside of the top surface of the front section outer plate (26) of the front longitudinal beam, and the three parts form a groove-shaped cavity assembly integrally;

and the front longitudinal beam front section side plate (11) is jointed and welded with a front longitudinal beam front section outer plate (26) of the front longitudinal beam front section outer plate assembly.

2. The automobile front side rail assembly structure according to claim 1, characterized in that a first longitudinal reinforcing rib (24) is provided at the front portion of the front section inner panel (16), the first longitudinal reinforcing rib (24) is vertically recessed inwardly from the top surface, the bottom surface and the side surfaces of the front section inner panel (16), respectively, and the first longitudinal reinforcing ribs (24) on the top surface, the bottom surface and the side surfaces of the front section inner panel (16) are sequentially communicated;

the front part of the front longitudinal beam front section outer plate (26) is provided with a second longitudinal reinforcing rib (25), the second longitudinal reinforcing rib (25) is vertically and inwards sunken from the top surface, the bottom surface and the side surface of the front longitudinal beam front section outer plate (26) respectively, and the second longitudinal reinforcing rib (25) on the top surface, the bottom surface and the side surface of the front longitudinal beam front section outer plate (26) are communicated in sequence.

3. The front side member assembly structure of an automobile according to claim 1, wherein a first elongated reinforcing rib (21) formed to be recessed inward is provided on the front side member front section outer panel (26), a second elongated reinforcing rib (22) formed to be recessed inward is provided on the front section inner panel (16), and the first elongated reinforcing rib (21) and the second elongated reinforcing rib (22) have the same shape and size and correspond in position.

4. The front side member assembly structure of an automobile according to claim 1, wherein a front portion of the front side member front section side plate (11) is provided with an elongated projecting reinforcing bead (23) projecting outward;

the front section inner reinforcing plate (15) is W-shaped.

5. The automobile front longitudinal beam assembly structure according to any one of claims 1 to 4, characterized in that a suspension mounting plate assembly (14), a suspension fixing bracket assembly (13) and a front damping assembly front section connecting plate (12) which are fastened and welded on the top surface and the side surface of the front longitudinal beam front section outer plate (26) are sequentially arranged from front to back, and the suspension mounting plate assembly (14), the suspension fixing bracket assembly (13) and the front damping assembly front section connecting plate (12) are simultaneously welded and connected with the front longitudinal beam front section side plate (11);

the end surface of the front section connecting plate (12) of the front vibration damping assembly is in a pi shape;

the suspension mounting plate assembly (14) and the suspension fixing support assembly (13) are arranged in a collinear manner, and mounting holes in the suspension mounting plate assembly and the mounting holes are 150mm apart.

6. The automobile front longitudinal beam assembly structure according to any one of claims 1 to 4, characterized in that a brake mounting bracket (8) is welded to the rear portion of the right side of the front longitudinal beam front section side plate (11) in the width direction, the brake mounting bracket (8) is integrally bent in an L shape, one side of the brake mounting bracket is welded to the front longitudinal beam front section side plate (11) in an attaching manner, and the other side of the brake mounting bracket is provided with a mounting and fixing through hole (9) for a brake control hose to pass through.

7. The automobile front side rail assembly structure according to claim 6, characterized in that a harness bracket bolt (10) for mounting an anti-lock brake system is welded below the brake mounting bracket (8).

8. The automobile front longitudinal beam assembly structure according to any one of claims 1 to 4 and 7, characterized in that a front lower hanger assembly (1) for mounting a front anti-collision beam is welded at the front end of the front longitudinal beam front section assembly (30), the front lower hanger assembly (1) comprises a front lower hanger outer plate (5), the front lower hanger outer plate (5) is welded at the front end of the front longitudinal beam front section assembly (30), an upper nut reinforcing plate (4) is fixed at the upper part of the front lower hanger outer plate, a lower nut reinforcing plate (6) is fixed at the lower part of the front lower hanger outer plate, and the upper nut reinforcing plate (4) and the lower nut reinforcing plate (6) are both rectangular structures; and a positioning hole (7) with the aperture being consistent with the diameter of the front anti-collision beam positioning pin is arranged on the front lower hanger outer plate (5).

9. The automobile front side member assembly structure according to claim 8, wherein the front lower hanger outer panel (5) is composed of a front end face and side faces, and the side faces of the front lower hanger outer panel (5) are vertically fixed to the front end face side thereof; the upper part of the side surface of the front lower hanger outer plate (5) is jointed and welded with the side surface of the front section of the front longitudinal beam front section outer plate (26), and the other side of the front end surface of the front lower hanger outer plate (5) is jointed and welded with the front section flanging of the front longitudinal beam front section side plate (11);

the upper nut reinforcing plate (4), the lower nut reinforcing plate (6) and the positioning hole (7) are all arranged on the front end face of the front lower hanger outer plate (5);

the front lower hanger assembly (1) further comprises a front lower hanger rear plate (27), a front lower hanger reinforcing plate (28) and a lower hanger side cover plate (17) for fixing a windscreen wiper spray kettle water pipe; a rear plate (27) of the front lower hanger is vertically welded to the lower part of the side surface of the outer plate (5) of the front lower hanger, and the top of the rear plate is jointed and welded with the outer plate (26) of the front section of the front longitudinal beam; the front flanging of the front lower hanger reinforcing plate (28) is jointed and welded with the bottom of the front end surface of the front lower hanger outer plate (5), the rear flanging is jointed and welded with the bottom of the front lower hanger rear plate (27), and the left flanging is jointed and welded with the bottom of the side surface of the front lower hanger outer plate (5);

the lower hanger side cover plate (17) is fixed on the outer side of the lower portion of the front lower hanger assembly (1), the front flanging of the lower hanger side cover plate is welded with the lower parallel and level of one side of a front longitudinal beam front section side plate (11) in a front end face welding mode of a front lower hanger outer plate (5), the rear flanging of the lower hanger side cover plate is welded with the lower parallel and level of one side of a front lower hanger outer plate (5) side face away from a front lower hanger rear plate (27), the upper flanging of the lower hanger side cover plate is welded with the lower parallel and level of a front longitudinal beam front section side plate (11) in a front lower flanging, and the lower flanging.

10. The automobile front longitudinal beam assembly structure according to any one of claims 1 to 4, 7 and 9, characterized in that a subframe front mounting plate assembly (3) is welded at the rear end of the front longitudinal beam front section assembly (30), the subframe front mounting plate assembly (3) comprises a front mounting plate reinforcing plate (18) and a subframe front mounting plate (19), the front mounting plate reinforcing plate (18) is welded on the inner side of the bottom surface of the front longitudinal beam front section outer plate (26), the subframe front mounting plate (19) is welded on the lower side of the outer side of the bottom surface of the front longitudinal beam front section outer plate (26), and the positions of the front mounting plate reinforcing plate and the subframe front mounting plate are symmetrically arranged about the bottom surface of the front longitudinal beam front section outer plate (26);

the middle part of the auxiliary frame front mounting plate (19) is sunken downwards to form a cavity shape so as to increase the strength of the auxiliary frame mounting plate;

and an auxiliary frame mounting stud (20) which vertically penetrates through the auxiliary frame front mounting plate (19) downwards is arranged at the center of the auxiliary frame front mounting plate (19) and the front mounting plate reinforcing plate (18).

Images