CN114572313B - Rear structure of aluminum alloy car body side wall inner plate - Google Patents
Rear structure of aluminum alloy car body side wall inner plate Download PDFInfo
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- CN114572313B CN114572313B CN202011377717.XA CN202011377717A CN114572313B CN 114572313 B CN114572313 B CN 114572313B CN 202011377717 A CN202011377717 A CN 202011377717A CN 114572313 B CN114572313 B CN 114572313B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
- B62D25/18—Parts or details thereof, e.g. mudguard flaps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
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- Body Structure For Vehicles (AREA)
Abstract
An aluminum alloy body side inner panel rear structure, comprising: d post reinforcing plate assembly, C post inner panel assembly, rear wheel cover assembly. The aluminum alloy vehicle body side wall inner plate rear structure ensures that the functions, safety, strength and rigidity of the side wall inner plate rear assembly are met, an optimized part structural design is adopted, and proper part manufacturing technology, connecting and assembling technology is applied, so that the strength, rigidity and crashworthiness of the side wall inner plate rear assembly are improved, the number of internal parts of the white vehicle body side wall inner plate rear assembly is reduced, the connection among the internal parts of the assembly is reduced, and the weight of the assembly is reduced.
Description
Technical Field
The invention relates to the field of automobile body-in-white design, in particular to a rear structure of an aluminum alloy automobile body side wall inner plate
Background
The weight reduction of white bodies is an important working content of automobile weight reduction, and along with development of new aluminum alloy materials, various processing technologies and manufacturing technologies, aluminum alloys are widely applied to the weight reduction of white bodies of automobiles. The strength of the aluminum alloy material is obviously lower than that of the steel material, but the aluminum alloy part can be increased in strength and rigidity through thickening and optimizing structural design, and finally reaches the same level as that of the steel part. The density of the aluminum alloy is far lower than that of steel, and even if the thickness is increased, the weight reduction effect of the aluminum alloy component is still very obvious. With the continuous increase of the quantity of the automobile and the gradual enhancement of the environmental protection consciousness of people, the aluminum material has higher recovery value rate and is a green material which is completely harmless to the environment. Numerous factors determine the importance of aluminum alloy materials in the field of automobile weight reduction. Besides the aluminum alloy light material, the structural design and the manufacturing process are an important way for realizing the light weight of the automobile structure, and an excellent light weight design scheme of the white automobile body can be formed by closely coordinating the three on the premise of meeting various performances and requirements of the white automobile body.
At present, most of white body side wall inner plate rear assemblies of automobiles use steel plate materials, which is not beneficial to reducing the weight of the automobile body. The aluminum alloy plate is used for all parts at the rear part of the white body side wall inner plate of a few automobiles, and the design is generally formed by assembling a plurality of aluminum plate parts through spot welding. This causes the workshop to take more production man-hour when producing, also need supporting more production facility and frock clamp simultaneously to cause manufacturing cost higher. On the other hand, in order to ensure the strength and rigidity of the side wall inner plate rear assembly, each aluminum plate part in the assembly usually uses a complex design structure, and the aluminum plate has poor molding performance, and various molding problems and quality problems can occur in the complex aluminum plate part in the stamping process.
Disclosure of Invention
The invention aims to design a rear structure of an aluminum alloy vehicle body side wall inner plate, and on the basis of ensuring the functions, safety, strength and rigidity of a side wall inner plate rear assembly, an optimized part structural design is adopted, and proper part manufacturing technology, connecting and assembling technology is applied, so that the strength, rigidity and crashworthiness of the side wall inner plate rear assembly are improved, the number of internal parts of the side wall inner plate rear assembly of a white vehicle body is reduced, the connection among the internal parts of the assembly is reduced, and the weight of the assembly is reduced.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
an aluminum alloy body side inner panel rear structure, comprising: a D-pillar reinforcement plate assembly, a C-pillar inner plate assembly, and a rear wheel cover assembly;
the D column reinforcing plate assembly comprises a D column upper reinforcing plate and a D column lower reinforcing plate; one side of the reinforcing plate on the D column is bent in the width direction, the middle part of the side is outwards extended to form a first connecting part, the reinforcing plate on the D column is in an inverted T-shaped structure, the first connecting part is downwards recessed to form a step surface, a boss which is matched with a part on the rear cross beam of the vehicle roof in a plane is arranged on the step surface, and a bolt hole for installing a back door hinge is formed in the top surface of the boss; one side of the width direction of the D column lower reinforcing plate is bent, and then is bent more than 90 degrees along the axial direction, the upper end of the D column lower reinforcing plate is overlapped with the lower end of the D column upper reinforcing plate, and the shape of the D column lower reinforcing plate is along with the D column upper reinforcing plate;
the C column inner plate assembly comprises a C column inner plate and a D column lower inner plate; the C column inner plate and the D column lower inner plate are connected below the D column upper reinforcing plate and the D column lower reinforcing plate, and a cavity is formed;
one side of the C column inner plate in the width direction is bent, the middle part of the side is outwards extended to form a second connecting part, so that the C column inner plate is in an inverted T-shaped structure, and a through hole is formed in the second connecting part corresponding to a boss on the connecting part of the reinforcing plate on the D column; one side of the lower inner plate of the column D in the width direction is bent, and then is bent by more than 90 degrees along the axial direction, and the upper end of the lower inner plate of the column D is overlapped with the lower end of the inner plate of the column C;
the rear wheel cover assembly comprises a rear wheel cover inner plate and a rear wheel cover outer plate;
the middle part of the inner plate of the rear wheel cover is a cone arc-shaped shell, the top end of the cone arc-shaped shell is provided with a platform, and a damper seat for being matched with a damper of the rear suspension is convexly arranged on the platform; the two side edges of the middle cone arc-shaped shell of the inner plate of the rear wheel cover are outwards bent to form a lap joint surface; the rear wheel cover outer plate is formed by spot welding of a rear wheel cover upper outer plate and a rear wheel cover lower outer plate;
the upper outer plate of the rear wheel cover is a shell with a trapezoid cavity formed by stamping, and the upper edge of the shell is outwards bent to form a lap joint surface and is connected with the lap joint surface of the inner plate of the rear wheel cover; the lower edge of the upper outer plate of the rear wheel cover is arc-shaped;
the lower outer plate of the rear wheel cover is an arc-shaped plate which is parallel to the lower edge of the upper outer plate of the rear wheel cover and is bent outwards to form a lap joint surface.
Preferably, a positioning hole is formed in the connecting area between the upper reinforcing plate of the D column and the front part of the side wall inner plate, and a positioning hole is formed in the connecting area between the upper reinforcing plate of the D column and the lower reinforcing plate of the D column.
Preferably, parallelogram grid-shaped ribs are uniformly arranged on the inner side surface of the reinforcing plate on the D column.
Preferably, the overlap joint of the upper reinforcing plate of the D column and the lower reinforcing plate of the D column is glued and connected through riveting to form glue-rivet composite connection.
Preferably, the inner wall of the inner plate of the rear wheel cover is provided with grid ribs at one side close to the wheels, and the height direction of the ribs is along the width direction of the vehicle body.
Preferably, at least two reinforcing ribs along the coordinate Z direction of the vehicle body are arranged on one side of the outer wall of the inner plate of the rear wheel cover, which is opposite to the wheels, and penetrate through the bottom and the top of the part, and the two reinforcing ribs are vertically arranged side by side.
Preferably, the upper outer plate of the rear wheel cover is connected with the lower outer plate of the rear wheel cover through spot welding to form the outer plate of the rear wheel cover, and then the outer plate of the rear wheel cover is assembled with the inner plate of the rear wheel cover to form the rear wheel cover assembly.
Preferably, the lap joint between the outer plate of the rear wheel cover and the inner plate of the rear wheel cover is coated with glue; on the basis of gluing, the front part and the rear part of the outer plate of the rear wheel cover and the inner plate of the rear wheel cover are connected through a self-punching riveting process to form a composite connection of gluing and self-punching riveting, and the upper part of the outer plate of the rear wheel cover and the inner plate of the rear wheel cover are connected through a circulation screw to form a composite connection of gluing and the circulation screw.
The invention relates to a rear structure of an aluminum alloy vehicle body side wall inner plate, which comprises a D column reinforcing plate assembly, a C column inner plate assembly and a rear wheel cover assembly; the upper reinforcing plate of the D column is connected with the lower reinforcing plate of the D column to form a D column reinforcing plate assembly; the upper outer plate of the rear wheel cover is connected with the lower outer plate of the rear wheel cover through resistance spot welding to form the outer plate of the rear wheel cover, and then the outer plate of the rear wheel cover is assembled on the inner plate of the rear wheel cover to form the rear wheel cover assembly. And the C column inner plate, the D column lower inner plate and the C column inner plate form a C column inner plate assembly through spot welding.
And the C column inner plate assembly, the rear wheel cover assembly and the D column reinforcing plate assembly are sequentially clamped in sequence to form a side wall inner plate rear assembly.
Parallelogram latticed ribs are uniformly arranged in important bearing and force transmission areas on the inner sides of the reinforcing plates on the D columns, and the latticed ribs are used for improving torsional rigidity of the side wall inner plates and the rear part of the whole vehicle body. Resists dynamic load transmitted from the chassis and improves the fatigue strength of the rear part of the side wall inner plate. At the same time, the impact load from the front or rear of the vehicle body can be more greatly borne during the collision.
The D column reinforcing plate is formed by using AlSi10MnMg material to form the part through a vacuum high-pressure casting process. The part is subjected to T7 overaging heat treatment to obtain good elongation, impact toughness and dimensional stability, wherein the elongation is more than 8%, the yield strength is more than 120MPa, and the tensile strength is more than 180MPa.
The upper part of the lower reinforcing plate of the D column is used for being connected with the upper reinforcing plate of the D column, the appearance of the lower reinforcing plate of the D column is along with that of the upper reinforcing plate of the D column, and the lower reinforcing plate is downwards bent towards the height direction of the vehicle body in consideration of the requirement of the vehicle modeling. The overall shape of the lower reinforcing plate of the D column is in a bent strip shape. The section of the reinforcing plate under the D column is designed to be a middle bulge, and the two edges of the reinforcing plate are provided with narrow lap joint surfaces. The design of the lower reinforcement plate of the D column is more beneficial to provide a channel for uploading dynamic loads of the chassis, and the dynamic loads from the lower vehicle body are transmitted to the upper part, the front part and the rear part of the vehicle body in a dispersed manner.
And the D column upper reinforcing plate and the D column lower reinforcing plate are connected to form a D column reinforcing plate assembly. And gluing the lap joint of the reinforcing plate under the D column and the reinforcing plate on the D column, and riveting and connecting the two parts by using self-punching riveting equipment, namely glue riveting composite connection. The adhesive riveting composite connection has higher fatigue strength and better static connection strength than the self-punching riveting connection, can effectively absorb kinetic energy when large deformation occurs, and prevents connecting parts from being thoroughly disconnected in a short time. The upper reinforcing plate of the D column reinforcing plate assembly is in an inverted T shape, the lower reinforcing plate of the D column of the assembly is in a strip shape, and the structure forms a complete force transmission channel, so that the load of the wheel cover part is transmitted to the front part and the rear part of the vehicle body, and the torsional rigidity, the strength and the crashworthiness of the side wall inner plate and the rear part of the whole vehicle body are improved.
The inner plate of the rear wheel cover is made of AlSi10MnMg material through a vacuum high-pressure casting process to form a part, and the wall thickness of a flat area of the part is uniform and is smaller than 3mm. The part is subjected to T7 overaging heat treatment to obtain good elongation, impact toughness and dimensional stability, wherein the elongation is more than 8%, the yield strength is more than 120MPa, and the tensile strength is more than 180MPa. The traditional sheet metal wheel cover, and the inner plate of the steel plate or aluminum plate rear wheel cover is generally formed by connecting 3-5 stamping sheet metal parts through spot welding. The rear wheel cover inner plate is integrally formed by adopting an AlSi10MnMg material vacuum high-pressure casting process, so that the lap joint allowance and connection between sheet metal parts are eliminated, and structural reinforcement parts and support parts required for achieving strength and rigidity requirements and achieving functions are eliminated.
And the inner wall of the inner plate of the rear wheel cover is provided with grid-shaped ribs close to one side of the wheel, and the height direction of the ribs is along the width direction of the vehicle body. Two square rib groups are arranged at the front and rear parts inside the rear wheel cover inner plate, and the rib shapes and the arrangement are used for reinforcing the rigidity of the rear wheel cover inner plate body, and meanwhile, the parts are uniformly stressed when bearing dynamic loads.
The inner plate of the rear wheel cover is provided with two reinforcing rib structures on one side, which is opposite to the wheels, along the height direction of the vehicle body, and penetrates through the bottom and the top of the parts. The two reinforcing ribs are vertically arranged side by side and are used for enabling the part to bear higher strength in the height direction of the vehicle body.
In order to match the chassis shock absorber, the function of a rear wheel cover inner plate is realized, and a shock absorber seat for matching with a shock absorber of a rear suspension is convexly arranged on a top end platform of a conical arc-shaped shell in the middle of the rear wheel cover inner plate and is in an hourglass-shaped structure.
The upper outer plate of the rear wheel cover is connected with the lower outer plate of the rear wheel cover through spot welding to form the outer plate of the rear wheel cover, and then the outer plate of the rear wheel cover is assembled with the inner plate of the rear wheel cover to form the rear wheel cover. And gluing the lap joint between the outer plate of the rear wheel cover and the inner plate of the rear wheel cover, and then clamping and fixing the upper part of the outer plate of the rear wheel cover on the inner plate of the rear wheel cover. The front part and the rear part of the outer plate of the rear wheel cover and the inner plate of the rear wheel cover are connected through a self-punching and riveting process. The upper part of the outer plate of the rear wheel cover is connected with the inner plate of the rear wheel cover by using a circulation screw. The composite connection between the outer plate of the rear wheel cover and the inner plate of the rear wheel cover by using gluing and self-punching riveting can obtain higher connection strength, and the upper part of the outer plate of the rear wheel cover is connected by using a circulation screw, which is a single-sided connection technology and can avoid the condition that equipment and parts interfere when the self-punching riveting process is implemented at the position. And the joint strength is obviously improved by the combination of the gluing and the circulation screw, and the vibration reduction performance of the wheel cover is improved.
When the C column inner plate assembly is connected with the rear wheel cover assembly, cold metal transition welding is used for connecting the C column inner plate and the upper part of the rear wheel cover inner plate. The cold metal transition welding is used for effectively avoiding interference between the self-riveting equipment and the parts during operation, and avoiding deformation of the parts when the part weak part is pressed during execution of the circulation screw equipment. In order to avoid the unexpected deformation of the part caused by cold metal transition welding, each welding line is 50mm long, and the interval between each welding line is more than 25mm. The lower inner plate of the D column reinforcing plate assembly is connected with the rear wheel cover assembly and the inner plate of the C column by self-punching riveting.
The side wall inner plate assembly uses the casting for the reinforcing plate on the column D at the key joint, the piece not only meets the functional requirement, but also has high strength and rigidity by designing parallel grid ribs, and the performance is equivalent to that of integrating 2-3 stamping parts in the area. Compared with the traditional sheet metal part design, the D-column upper reinforcing plate structure realizes light weight by reducing part materials and eliminating joint edges between parts. In the same way, the wheel cover inner plate body part is integrally formed by using a die casting process and a die casting aluminum alloy material, which is equivalent to 3-5 aluminum plate stamping parts integrated, and has better rigidity and shock absorption performance. The connection between the aluminum alloy die casting and the aluminum plate stamping part uses gluing and self-punching riveting composite connection at the key part bearing load, so that the connection between parts has higher strength, and reliable guarantee is provided for realizing effective load transmission and improving the torsional rigidity of the rear part of the side wall inner plate.
Drawings
FIG. 1 is a perspective view of FIG. 1 according to an embodiment of the present invention;
FIG. 2 is a perspective view of FIG. 2 according to an embodiment of the present invention;
FIG. 3 is a perspective view of FIG. 3 according to an embodiment of the present invention;
FIG. 4 is a perspective view of FIG. 4 according to an embodiment of the present invention;
fig. 5 is a perspective view of an embodiment of the present invention, fig. 5.
Detailed Description
The following describes in further detail the specific embodiments of the invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1 to 5, the aluminum alloy body side inner panel rear structure of the present invention includes: a D-pillar reinforcement plate assembly 10, a C-pillar inner plate assembly 20, and a rear wheel cover assembly 30;
the D column reinforcing plate assembly 10 comprises a D column upper reinforcing plate 1 and a D column lower reinforcing plate 2; one side of the D column reinforcing plate 1 in the width direction is bent, the middle part of the side is outwards extended to form a first connecting part 11, the D column reinforcing plate 1 is in an inverted T-shaped structure, the first connecting part 11 is downwards concave to form a step surface 111, a boss 112 which is matched with a part on a rear beam of a vehicle roof in a plane is arranged on the step surface 111, and a bolt hole 121 for installing a back door hinge is arranged on the top surface of the boss 112; one side of the lower reinforcing plate 2 of the D column in the width direction is bent, and then is bent by more than 90 degrees along the axial direction, the upper end of the lower reinforcing plate is overlapped with the lower end of the upper reinforcing plate 1 of the D column, and the shape of the lower reinforcing plate is along with the shape of the upper reinforcing plate 1 of the D column;
the C pillar inner panel assembly 20 comprises a C pillar inner panel 3 and a D pillar lower inner panel 4; the C column inner plate 3 and the D column lower inner plate 4 are connected below the D column upper reinforcing plate 1 and the D column lower reinforcing plate 2, and form a cavity 201;
one side of the C column inner plate 3 in the width direction is bent, the middle part of the side is outwards extended to form a second connecting part 31, the C column inner plate 3 is in an inverted T-shaped structure, and a through hole 32 is formed in the second connecting part 31 corresponding to a boss 112 on the connecting part 11 of the D column upper reinforcing plate 1; one side of the lower inner plate 4 of the column D in the width direction is bent, and then is bent by more than 90 degrees along the axial direction, and the upper end of the lower inner plate of the column D is overlapped with the lower end of the inner plate 3 of the column C;
the rear wheel cover assembly 30 comprises a rear wheel cover inner plate 5 and a rear wheel cover outer plate 6;
the middle part 51 of the rear wheel cover inner plate 5 is a cone arc-shaped shell, the top end of the cone arc-shaped shell is provided with a platform 52, and a damper seat 55 for being matched with a damper of a rear suspension is convexly arranged on the platform 52; the two side edges of the middle 51 cone arc-shaped shell of the rear wheel cover inner plate 5 are outwards bent to form a lap joint surface 511;
the rear wheel cover outer plate 6 is formed by spot welding of a rear wheel cover upper outer plate 61 and a rear wheel cover lower outer plate 62; the upper outer plate 61 of the rear wheel cover is a shell with a trapezoid cavity formed by stamping, and the upper edge of the shell is outwards bent to form a lap joint surface 611 and is connected with the lap joint surface 511 of the inner plate 5 of the rear wheel cover; the lower edge of the upper outer plate 61 of the rear wheel cover is arc-shaped; the lower outer plate 62 of the rear wheel cover is an arc-shaped plate which is in the shape of an arc along the lower edge of the upper outer plate 61 of the rear wheel cover, and one side of the arc-shaped plate is outwards bent to form a joint surface 621;
preferably, a positioning hole is formed in the connecting area between the upper reinforcing plate of the D column and the front part of the side wall inner plate, and a positioning hole is formed in the connecting area between the upper reinforcing plate of the D column and the lower reinforcing plate of the D column; .
Preferably, parallelogram grid-shaped ribs 12 are uniformly arranged on the inner side surface of the D-column upper reinforcing plate 1.
Preferably, the overlapping surface of the upper reinforcing plate 1 of the D column and the lower reinforcing plate 2 of the D column are glued and connected through riveting, so that glue-rivet composite connection is formed.
Preferably, the inner wall of the rear wheel cover inner plate 5 is provided with grid ribs 53 at one side close to the wheels, and the height direction of the ribs is along the width direction of the vehicle body.
Preferably, two reinforcing ribs 54 are arranged on the side of the outer wall of the rear wheel cover inner plate 5, which faces away from the wheels, along the height direction of the vehicle body, and penetrate through the bottom and the top of the part, and the two reinforcing ribs 54 are vertically arranged side by side.
Preferably, the rear wheel cover upper outer plate 61 and the rear wheel cover lower outer plate 62 are connected by spot welding to form a rear wheel cover outer plate 6, and then assembled with the rear wheel cover inner plate 5 to form the rear wheel cover assembly 30.
Preferably, the lap joint between the outer plate 6 of the rear wheel cover and the inner plate 5 of the rear wheel cover is coated with glue; on the basis of gluing, the front part and the rear part of the rear wheel cover outer plate 6 and the rear wheel cover inner plate 5 are connected through a self-punching and riveting process to form self-punching and riveting and gluing compound connection, and the upper part of the rear wheel cover outer plate 6 and the rear wheel cover inner plate 5 are connected through a circulation screw to form gluing and circulation screw compound connection.
According to the invention, by reasonably using the aluminum alloy vacuum high-pressure casting, the reinforcing plate on the casting D column is applied to the key joint area, so that the complex structure is obtained, the strength and the rigidity are improved, and the number of parts is reduced. The number of parts can be greatly reduced by applying the cast wheel cover inner plate to the area with higher rigidity and complex structure. The assembly at the rear part of the side wall inner plate is flexibly glued, riveted by self-punching, connected by a circulation screw and cold metal transition welded, so that the connection between all parts is realized, and the connection strength between the parts is improved. The optimized design of the part structure of the rear assembly of the side wall inner plate and the application of proper connection and assembly processes, the part manufacturing technology and the aluminum alloy material reduce the weight of the rear assembly of the side wall inner plate.
Claims (13)
1. An aluminum alloy body side inner panel rear structure, comprising: a D-pillar reinforcement plate assembly, a C-pillar inner plate assembly, and a rear wheel cover assembly;
the D column reinforcing plate assembly comprises a D column upper reinforcing plate and a D column lower reinforcing plate; one side of the reinforcing plate on the D column in the width direction is bent, the middle part of the side is outwards extended to form a first connecting part, so that the reinforcing plate on the D column is in an inverted T-shaped structure, the first connecting part is downwards recessed to form a step surface, a boss which is matched with a part on a rear cross beam of a vehicle roof in a plane manner is arranged on the step surface, and a bolt hole hinged with a back door is arranged on the top surface of the boss; one side of the width direction of the D column lower reinforcing plate is bent, and then is bent more than 90 degrees along the axial direction, the upper end of the D column lower reinforcing plate is overlapped with the lower end of the D column upper reinforcing plate, and the shape of the D column lower reinforcing plate is along with the D column upper reinforcing plate;
the C column inner plate assembly comprises a C column inner plate and a D column lower inner plate; the C column inner plate and the D column lower inner plate are connected below the D column upper reinforcing plate and the D column lower reinforcing plate, and a cavity is formed;
one side of the C column inner plate in the width direction is bent, the bent middle part of the one side extends outwards to form a second connecting part, so that the C column inner plate is in an inverted T-shaped structure, and a through hole is formed in the second connecting part corresponding to a boss on the connecting part of the reinforcing plate on the D column; one side of the lower inner plate of the column D in the width direction is bent, and then is bent by more than 90 degrees along the axial direction, and the upper end of the lower inner plate of the column D is overlapped with the lower end of the inner plate of the column C;
the rear wheel cover assembly comprises a rear wheel cover inner plate and a rear wheel cover outer plate;
the middle part of the inner plate of the rear wheel cover is a cone arc-shaped shell, the top end of the cone arc-shaped shell is provided with a platform, and a damper seat for being matched with a damper of the rear suspension is convexly arranged on the platform; the two side edges of the middle cone arc-shaped shell of the inner plate of the rear wheel cover are outwards bent to form a lap joint surface; the rear wheel cover outer plate is formed by spot welding of a rear wheel cover upper outer plate and a rear wheel cover lower outer plate;
the upper outer plate of the rear wheel cover is a shell with a trapezoid cavity formed by stamping, and the upper edge of the shell is outwards bent to form a lap joint surface and is connected with the lap joint surface of the inner plate of the rear wheel cover; the lower edge of the upper outer plate of the rear wheel cover is arc-shaped;
the lower outer plate of the rear wheel cover is an arc-shaped plate which is parallel to the lower edge of the upper outer plate of the rear wheel cover and is bent outwards to form a lap joint surface.
2. The aluminum alloy body side inner panel rear structure as recited in claim 1, wherein said D pillar upper reinforcement panel and side inner panel front attachment area is provided with a positioning hole, and said D pillar upper reinforcement panel and D pillar lower reinforcement panel attachment area is provided with a positioning hole.
3. The aluminum alloy body side inner panel rear structure according to claim 1 or 2, wherein parallelogram grid-like ribs are uniformly arranged on the inner side surface of the D-pillar upper reinforcement plate.
4. The aluminum alloy body side inner panel rear structure according to claim 1 or 2, wherein the joint surface of the D pillar upper reinforcing plate and the D pillar lower reinforcing plate is glued and connected by riveting to form a glue-rivet composite connection.
5. The aluminum alloy body side inner panel rear structure as recited in claim 3, wherein the overlap surface of the D pillar upper reinforcement plate and the D pillar lower reinforcement plate is glued and connected by riveting to form a glue rivet composite connection.
6. The aluminum alloy body side inner panel rear structure according to claim 1, wherein a latticed rib is provided on a side of the inner wall of the rear wheel house inner panel adjacent to the wheel, and a height direction of the rib is along a width direction of the vehicle body.
7. The aluminum alloy body side inner panel rear structure according to claim 1 or 6, wherein at least two reinforcing ribs in the height direction of the vehicle body are provided on the side of the rear wheel house inner panel outer wall facing away from the wheels, penetrating the bottom and top of the part, the two reinforcing ribs being vertically juxtaposed.
8. The aluminum alloy body side inner panel rear structure according to claim 1 or 6, wherein the rear wheel house upper outer panel and the rear wheel house lower outer panel are joined by spot welding to form a rear wheel house outer panel, and are assembled with the rear wheel house inner panel to form a rear wheel house assembly.
9. The aluminum alloy body side inner panel rear structure as recited in claim 7, wherein said rear wheel cover upper outer panel and rear wheel cover lower outer panel are joined by spot welding to form a rear wheel cover outer panel which is then assembled with the rear wheel cover inner panel to form a rear wheel cover assembly.
10. The aluminum alloy body side inner panel rear structure according to claim 1 or 6, wherein the overlapping part between the rear wheel cover outer plate and the rear wheel cover inner plate is coated with glue, the front part and the rear part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected through a self-riveting process on the basis of gluing to form a composite connection of glue coating and self-riveting, and the upper part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected through a circulation screw to form a composite connection of glue coating and circulation screw.
11. The aluminum alloy body side inner panel rear structure of claim 7, wherein the overlapping part between the rear wheel cover outer plate and the rear wheel cover inner plate is coated with glue, the front part and the rear part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected through a self-punching and riveting process on the basis of the glue to form a composite connection of the glue coating and the self-punching and riveting, and the upper part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected by using a circulation screw to form a composite connection of the glue coating and the circulation screw.
12. The aluminum alloy body side inner panel rear structure of claim 8, wherein the overlapping part between the rear wheel cover outer plate and the rear wheel cover inner plate is coated with glue, the front part and the rear part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected through a self-punching and riveting process on the basis of the glue to form a composite connection of the glue coating and the self-punching and riveting, and the upper part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected by using a circulation screw to form a composite connection of the glue coating and the circulation screw.
13. The aluminum alloy body side inner panel rear structure of claim 9, wherein the overlapping part between the rear wheel cover outer plate and the rear wheel cover inner plate is glued, the front part and the rear part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected through a self-punching and riveting process on the basis of gluing to form a compound connection of gluing and self-punching and riveting, and the upper part of the rear wheel cover outer plate and the rear wheel cover inner plate are connected through a circulation screw to form a compound connection of gluing and circulation screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377717.XA CN114572313B (en) | 2020-11-30 | 2020-11-30 | Rear structure of aluminum alloy car body side wall inner plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377717.XA CN114572313B (en) | 2020-11-30 | 2020-11-30 | Rear structure of aluminum alloy car body side wall inner plate |
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|---|---|---|---|---|
| JP2008308071A (en) * | 2007-06-15 | 2008-12-25 | Honda Motor Co Ltd | Frame structure of upper corner part at vehicle rear part |
| CN104828150A (en) * | 2014-12-02 | 2015-08-12 | 北汽福田汽车股份有限公司 | Rear wheel cover connecting structure and automobile with same |
| CN105235749A (en) * | 2014-07-09 | 2016-01-13 | 广州汽车集团股份有限公司 | Vehicle back side periphery reinforcement structure, vehicle back portion energy-sucking structure and vehicle |
| CN110861715A (en) * | 2019-11-15 | 2020-03-06 | 东风汽车集团有限公司 | Lightweight automobile rear side wall reinforcing plate assembly and rear side wall reinforcing structure |
| CN111017033A (en) * | 2019-11-28 | 2020-04-17 | 爱驰汽车有限公司 | Reinforcing structure for rear part of vehicle body |
| CN211167102U (en) * | 2019-10-09 | 2020-08-04 | 北京汽车股份有限公司 | Automobile body side wall additional strengthening, automobile body rear side wall assembly and vehicle |
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2020
- 2020-11-30 CN CN202011377717.XA patent/CN114572313B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008308071A (en) * | 2007-06-15 | 2008-12-25 | Honda Motor Co Ltd | Frame structure of upper corner part at vehicle rear part |
| CN105235749A (en) * | 2014-07-09 | 2016-01-13 | 广州汽车集团股份有限公司 | Vehicle back side periphery reinforcement structure, vehicle back portion energy-sucking structure and vehicle |
| CN104828150A (en) * | 2014-12-02 | 2015-08-12 | 北汽福田汽车股份有限公司 | Rear wheel cover connecting structure and automobile with same |
| CN211167102U (en) * | 2019-10-09 | 2020-08-04 | 北京汽车股份有限公司 | Automobile body side wall additional strengthening, automobile body rear side wall assembly and vehicle |
| CN110861715A (en) * | 2019-11-15 | 2020-03-06 | 东风汽车集团有限公司 | Lightweight automobile rear side wall reinforcing plate assembly and rear side wall reinforcing structure |
| CN111017033A (en) * | 2019-11-28 | 2020-04-17 | 爱驰汽车有限公司 | Reinforcing structure for rear part of vehicle body |
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| CN114572313A (en) | 2022-06-03 |
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