CN115158472B - Connection structure and vehicle of car rear side wall assembly and rear vehicle body assembly - Google Patents
Connection structure and vehicle of car rear side wall assembly and rear vehicle body assembly Download PDFInfo
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- CN115158472B CN115158472B CN202210778322.3A CN202210778322A CN115158472B CN 115158472 B CN115158472 B CN 115158472B CN 202210778322 A CN202210778322 A CN 202210778322A CN 115158472 B CN115158472 B CN 115158472B
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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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
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- Combustion & Propulsion (AREA)
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- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the technical field of automobile bodies, in particular to a connecting structure of a rear side wall assembly and a rear automobile body assembly of a car and a car, wherein the connecting structure comprises the rear automobile body assembly and the rear side wall assembly, and the rear automobile body assembly and the rear side wall assembly form an integral structure by adopting a spot welding, structural adhesive and screwed connection mode; the rear vehicle body assembly comprises a rear vehicle body, wherein the front part of the rear vehicle body is provided with a front reinforcing cavity, and the rear part of the rear vehicle body is provided with a rear reinforcing cavity; the rear side wall assembly comprises a rear side wall inner plate assembly, a storage plate side plate assembly and a side wall rear supporting piece; the object placing plate edge plate assembly is fixedly connected with the rear vehicle body at the front reinforcing cavity and the rear reinforcing cavity to form a first annular cavity structure and a second annular cavity structure. The invention solves the technical problems that the height of the rim boundary is limited due to the space limitation requirement on a welding channel in the connection modes of spot welding, FDS hot-melt self-tapping screw connection and the like in the prior art, thereby influencing the modeling design and the overall structural design and leading to the difficulty in ensuring the overall performance requirement of the vehicle body.
Description
Technical Field
The utility model relates to the technical field of automobile bodies, in particular to a connecting structure of a rear side wall assembly and a rear automobile body assembly of a car and a vehicle.
Background
With the rapid development of the vehicle industry, various requirements of people on vehicles are also increasing; comfort, safety and economy of a vehicle are the most important indicators of purchasing a vehicle by a customer, particularly vehicle safety.
In the structural design of a vehicle, the structure and connection of the rear side wall assembly and the rear vehicle body assembly are important positions for guaranteeing the structural integrity of the rear part of the vehicle body, are also key structures for guaranteeing the overall bending and torsional rigidity of the vehicle body, and are also important structures for guaranteeing the rigidity of the attachment point of the rear auxiliary frame and NVH performance (noise, vibration and harshness performance).
In the conventional automobile structural design at present, for a common all-steel automobile body, a rear side wall assembly and a rear automobile body assembly are usually subjected to spot welding and CO 2 A connection mode of the protection welding; for a common steel-aluminum mixed vehicle body, the rear side wall assembly and the rear vehicle body assembly are usually welded by spot welding, FDS hot melting self-tapping screw connection and SPR self-punching rivetingAnd connection modes. For example, patent with the publication number CN203958323U discloses a connection structure between a side wall assembly and a rear wall assembly of an automobile, which comprises a side wall assembly and a rear wall assembly below the rear wall assembly, wherein a rear fender seal plate structure is connected between the side wall assembly and the rear wall assembly, the rear fender seal plate structure comprises a rear wall extension plate with a top end extending transversely and a side wall extension plate with a bottom end extending longitudinally, the rear wall extension plate is connected with the rear wall assembly, the front side of the side wall extension plate is connected with the rear part of the side wall assembly, the rear side of the side wall extension plate is connected with the rear wall assembly, and the bottom end of the side wall extension plate extends to the bottom end of the rear part of the side wall assembly. According to the utility model, the side wall assembly, the rear wall assembly and the rear partition plate assembly are connected into a whole through the rear fender sealing plate structure, so that the joint of the rear fender inner plate, the rear taillight seat plate and the rear coaming assembly is in a sealed structure, the defect of weak connection between the rear part of the side wall assembly and the rear coaming assembly is overcome, and therefore, the strength and the rigidity of a vehicle body are improved, and the rear collision performance of the vehicle is improved.
However, the prior art has space limitation requirements on welding channels by adopting the connection modes of spot welding, FDS hot melting self-tapping screw connection and the like, so that the height of the rim of the eyebrow is limited, thereby influencing the design of the modeling; in addition, the design of the overall structure can be influenced, and the overall performance requirement of the vehicle body is difficult to guarantee.
Disclosure of Invention
In view of the above, the invention aims to provide a connecting structure of a rear side wall assembly and a rear vehicle body assembly of a car and the car, and solve the technical problems that the height of the rim is limited due to the space limitation requirement on a welding channel in the prior art in the connecting modes of spot welding, FDS hot-melt self-tapping screwing and the like, thereby influencing the design of the modeling and the overall structure and leading to the difficulty in guaranteeing the overall performance requirement of the car body.
The invention solves the technical problems by the following technical means:
the connecting structure of the rear side wall assembly and the rear vehicle body assembly of the car comprises the rear vehicle body assembly and the rear side wall assembly, wherein the rear vehicle body assembly and the rear side wall assembly form an integral structure by adopting a spot welding, structural adhesive and screwed connection mode; the rear vehicle body assembly comprises a rear vehicle body, the front end of the rear vehicle body is fixedly connected with a rear vehicle body front connecting plate, the rear end of the rear vehicle body is fixedly connected with a rear vehicle body rear connecting plate, the front part of the rear vehicle body is provided with a front reinforcing cavity, and the rear part of the rear vehicle body is provided with a rear reinforcing cavity; the rear side wall assembly comprises a rear side wall inner plate assembly, a storage plate side plate assembly and a side wall rear supporting piece, wherein the rear side wall inner plate assembly and the side wall rear supporting piece are arranged on two sides of the storage plate side plate assembly, the rear side wall inner plate assembly is fixedly connected with a rear vehicle body front connecting plate, and the side wall rear supporting piece is fixedly connected with a rear vehicle body rear connecting plate; the storage plate side plate assembly is fixedly connected with the rear vehicle body at the front reinforcing cavity and the rear reinforcing cavity respectively to form a rear side wall inner plate assembly, the storage plate side plate assembly and the side wall rear supporting piece are fixedly connected to form a first annular cavity structure at the front part and a second annular cavity structure at the rear part.
The principle of the scheme is as follows: the storage plate side plate assembly is fixedly connected with the front reinforcing cavity structure of the rear vehicle body to form a front cavity structure of the rear side wall assembly, a first force transmission path is formed, and the first annular cavity structure is formed at the rear part of the vehicle body together with the storage plate side plate assembly, the rear side wall assembly and the rear vehicle body assembly. The rear reinforcing cavity structure of the rear vehicle body is fixedly connected with the rear reinforcing cavity structure to form a rear cavity structure of the rear side wall assembly, a second force transmission path is formed, and the second annular cavity structure is formed at the rear part of the vehicle body by the rear side wall assembly, the rear side wall assembly and the rear vehicle body assembly. The two annular cavity structures form part of the integral frame at the rear part of the vehicle body, and the bending torsion rigidity, the rear auxiliary frame attachment point rigidity and the NVH performance of the vehicle body are greatly improved.
In addition, the connecting structure of the rear side wall assembly and the rear vehicle body assembly is comprehensively implemented by adopting three connecting modes of spot welding, structural adhesive and screw connection, so that the problem that the boundary of the modeling wheel arch is changed due to insufficient welding space of full spot welding connection is effectively solved, the influence of engineering on modeling is reduced, and the perfect design of modeling is facilitated; meanwhile, two force transmission paths of a front support and a rear support are formed on the structure, and the overall bending and torsion rigidity of the vehicle body, the rigidity of a rear auxiliary frame attachment point and NVH performance are greatly improved.
Further, a first rear vehicle body mounting hole connected with the rear side wall inner plate assembly, a second rear vehicle body mounting hole connected with the rear side wall inner plate assembly and the object placing plate side plate assembly, a third rear vehicle body mounting hole connected with the object placing plate side plate assembly, a fourth rear vehicle body mounting hole connected with the rear side wall inner plate assembly and the side wall rear supporting piece and a fifth rear vehicle body mounting hole connected with the side wall rear supporting piece are formed in the rear vehicle body; and a rear vehicle body mounting hole six connected with the rear side wall inner plate assembly. The arrangement of the first rear vehicle body mounting hole, the second rear vehicle body mounting hole, the third rear vehicle body mounting hole, the fourth rear vehicle body mounting hole, the fifth rear vehicle body mounting hole and the sixth rear vehicle body mounting hole facilitates the fixed connection of the rear side wall assembly and the rear vehicle body assembly by adopting the sealing bolts, and the connection in a spot welding or FDS mode is avoided.
Further, a first rear car body lap joint surface and a first rear side wall assembly lap joint surface are respectively arranged on two sides of the front car body, a main front connecting plate positioning hole and a secondary front connecting plate positioning hole are respectively formed in two ends of the first rear side wall assembly lap joint surface, and the first rear car body lap joint surface and the rear car body are connected into a whole through SPR self-piercing riveting and a section of structural adhesive. Therefore, the front connecting plate of the rear vehicle body and the rear vehicle body are connected into a whole by adopting SPR self-piercing riveting and structural adhesive, the problem that steel-aluminum mixing cannot be connected by spot welding can be solved, and meanwhile, the rigidity and the strength of structural connection are ensured.
Further, a rear connecting plate mounting through hole connected with the rear side wall inner plate assembly is formed in the rear connecting plate of the rear vehicle body, a notch is formed in the rear connecting plate of the rear vehicle body, a first rear connecting plate mounting hole connected with the rear side wall inner plate assembly and the side wall rear supporting piece is formed in the rear connecting plate of the rear vehicle body, a second rear connecting plate mounting hole connected with the rear side wall inner plate assembly and the side wall rear supporting piece is formed in the rear connecting plate of the rear vehicle body, and a main rear connecting plate positioning hole is formed in the rear connecting plate of the rear vehicle body between the rear connecting plate mounting through hole and the first rear connecting plate mounting hole; the two sides of the rear connecting plate of the rear car body are respectively provided with a second lap joint surface of the rear side wall assembly and a second lap joint surface of the rear car body, and the lap joint surface of the rear side wall assembly is provided with a positioning hole of the secondary rear connecting plate; and the second lap joint surface of the rear vehicle body is integrally connected with the rear vehicle body by adopting SPR self-piercing riveting and a section of structural adhesive. Therefore, the rear connecting plate of the rear vehicle body and the rear vehicle body are connected into a whole by adopting SPR self-piercing riveting and structural adhesive, the problem that steel-aluminum mixing cannot be connected by spot welding can be solved, and meanwhile, the rigidity and the strength of structural connection are ensured.
Furthermore, the rear car body is formed by integrally casting an aluminum alloy plate, and the front connecting plate of the rear car body and the rear connecting plate of the rear car body are formed by stamping galvanized steel plates with the thickness of 0.9-1.1 mm. The rear car body is formed by die casting through an integral die casting process, so that the existing multiple parts are reduced to one die casting, the manufacturing efficiency is greatly improved, and the production cost is reduced; the galvanized plate is adopted for the front connecting plate of the rear vehicle body and the rear connecting plate of the rear vehicle body, so that structural corrosion caused by chemical reaction of a steel plate and an aluminum alloy can be effectively avoided, and a good anti-corrosion effect is achieved.
Further, the rear side wall inner plate assembly comprises a rear wheel bag outer plate, and a rear wheel bag inner plate, a side wall rear upper inner plate connecting plate and a top cover rear cross beam supporting plate which are fixedly connected to the rear wheel bag outer plate; the rear wheel bag inner plate and the upper inner plate connecting plate are arranged on two sides of the side wall rear upper inner plate, and the top cover rear cross beam supporting plate is arranged on the side wall rear upper inner plate connecting plate; the rear wheel bag inner plate is fixedly connected with the rear vehicle body assembly, the storage plate side plate assembly and the side wall rear supporting piece.
Further, a package inner plate mounting via hole connected with the rear vehicle body is formed in the rear wheel package inner plate, a package inner plate lap surface connected with the rear vehicle body assembly, the object placing plate side plate assembly and the side wall rear supporting piece is arranged on the lower side of the rear wheel package inner plate, a package inner plate nut hole I connected with the rear vehicle body and the object placing plate side plate assembly is formed in the middle of the package inner plate lap surface, and a package inner plate nut hole II and a package inner plate nut hole III connected with the rear vehicle body and the side wall rear supporting piece and a package inner plate nut hole IV connected with the rear vehicle body are formed in the package inner plate lap surface; the two sides of the rear wheel bag inner plate are respectively provided with a main bag inner plate positioning hole and a secondary bag inner plate positioning hole; and welding square nuts are welded around the first inner plate-covered nut hole, the second inner plate-covered nut hole, the third inner plate-covered nut hole and the inner plate-covered nut hole respectively, and the welding square nuts form a mounting point structure.
Further, the first nut hole of the inner plate, the first mounting through hole of the object placing plate and the second hole of the rear vehicle body are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting an M8 sealing bolt; and the nut hole I of the inner plate of the bag, the mounting hole III of the object placing plate and the hole center of the mounting hole II of the rear vehicle body are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt.
Further, the storage plate side plate assembly comprises a storage plate front lower support plate, a storage plate rear lower support plate, a storage plate side plate front connecting plate and a storage plate side plate; the lower back support plate of the storage plate and the lower front support plate of the storage plate are arranged on two sides of the front connecting plate of the storage plate side plate, and the storage plate side plate is fixedly connected with the lower back support plate of the storage plate.
Further, a first storage plate mounting through hole connected with the rear vehicle body and the rear side wall inner plate assembly is formed in the end part of the front lower support plate of the storage plate, a second storage plate mounting through hole connected with the rear vehicle body, a first front lower support plate overlap surface, a second front lower support plate overlap surface, a third front lower support plate overlap surface and a fourth front lower support plate overlap surface connected with the rear side wall inner plate assembly, and a front lower support plate main positioning hole and a front lower support plate secondary positioning hole are further formed in the front lower support plate of the storage plate; the rear lower support plate of the object placing plate is provided with a rear lower support plate main positioning hole and a rear lower support plate secondary positioning hole, an object placing plate mounting through hole III connected with a rear vehicle body and a rear side wall inner plate assembly, and an object placing plate nut hole I and an object placing plate nut hole II connected with the rear vehicle body; and the third lower support plate overlap surface is fixedly connected with the rear lower support plate overlap surface through spot welding.
Further, the front lower support plate of the storage plate is connected with the rear lower support plate of the storage plate to form a cavity structure; welding square nuts are welded at the first storage plate nut hole and the second storage plate nut hole, and a mounting point structure is formed by the welding square nuts and the welding square nuts; the second object placing plate mounting through hole, the second object placing plate nut hole and the third rear vehicle body mounting hole are aligned in hole center and fixedly connected with the same sealing bolt, so that a mounting structure for connecting the rear side wall assembly with the rear vehicle body assembly is formed; the first nut hole of the object placing plate is aligned with the hole center of the third mounting hole of the rear vehicle body, and is fixedly connected with the same sealing bolt, so that a mounting structure for connecting the rear side wall assembly with the rear vehicle body assembly is formed.
Further, a first supporting piece lap surface and a second supporting piece lap surface which are fixedly connected with the rear side wall inner plate assembly are respectively arranged on two sides of the side wall rear supporting piece, and a third supporting piece lap surface is arranged on one side, close to the storage plate edge plate assembly, of the side wall rear supporting piece; the upper portion of side wall rear portion support piece has seted up secondary support piece locating hole, and the main support piece locating hole has been seted up at the middle part, and the support piece nut hole of being connected with the back automobile body has been seted up to the lower part, support piece nut hole department welding has welding square nut, constitutes mounting point structure with welding square nut.
Further, the edge of the side plate front connecting plate of the storage plate is integrally formed with a first side plate front connecting plate joint surface, a second side plate front connecting plate joint surface and a third side plate front connecting plate joint surface, and front connecting plate main positioning holes and front connecting plate secondary positioning holes are formed at two ends of the side plate front connecting plate of the storage plate; the edge of the object placing plate side plate is provided with an object placing plate side plate lap joint surface I, an object placing plate side plate lap joint surface II, an object placing plate side plate lap joint surface III and an object placing plate side plate lap joint surface IV; the third connecting plate connecting surface of the side plate is connected with the fourth connecting plate connecting surface of the front lower supporting plate through spot welding; the second connecting plate connecting surface of the front side plate is connected with the third connecting plate connecting surface of the rear lower supporting plate and the first connecting plate connecting surface of the side plate of the storage plate through spot welding, so that the side plate assembly of the storage plate is formed.
Further, the support piece nut holes are aligned with the hole centers of the rear car body mounting holes five respectively, and the rear side wall assembly is fixedly connected with the rear car body assembly by adopting sealing bolts.
Further, the hole centers of the nut hole II of the inner plate, the mounting hole IV of the rear vehicle body and the mounting hole II of the rear connecting plate are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt; the nut hole III of the inner plate, the mounting hole IV of the rear vehicle body and the hole center of the mounting hole I of the rear connecting plate are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt; the nut hole IV of the inner plate of the bag, the mounting hole VI of the rear vehicle body and the hole center of the mounting via hole of the rear connecting plate are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt; and the inner plate mounting via hole of the bag is aligned with the hole center of the rear connecting plate mounting via hole, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt.
Further, the rear side wall inner plate assembly and the storage plate side plate assembly are welded by adopting 12-14 welding spots at the joint surfaces of the front lower support plate and the rear lower support plate, and the rear side wall inner plate assembly and the side wall rear support piece are welded by adopting 10-12 welding spots at the joint surfaces of the first support piece and the second support piece.
Further, the rear side wall inner plate assembly is welded with the first front lower support plate joint surface, the second front lower support plate joint surface, the third front lower support plate joint surface, the first rear lower support plate joint surface, the fourth rear lower support plate joint surface, the first side plate front connecting plate joint surface, the second side plate joint surface and the third side plate joint surface through spot welding to form a front cavity structure of the rear side wall inner plate assembly; the rear side wall inner plate assembly is welded with the first supporting piece joint surface and the second supporting piece joint surface through 10-12 spot welds, and the third supporting piece joint surface and the fourth supporting piece joint surface are welded with the fourth supporting piece joint surface through 5-7 spot welds, so that a rear cavity structure of the rear side wall inner plate assembly is formed.
Further, the rear vehicle body assembly and the rear side wall assembly are connected with one section of structural adhesive at one position of the lap joint surface of the rear side wall assembly of the front connecting plate of the rear vehicle body by adopting 9-11 spot welds; the rear car body assembly and the rear side wall assembly are connected with one section of structural adhesive at the second joint surface of the rear side wall assembly of the rear car body rear connecting plate by 3-5 spot welds; the rear car body assembly is connected with the rear side wall assembly by adopting a section of structural adhesive on a second rear car body lap joint surface of a rear car body rear connecting plate. The problem of insufficient welding space caused by spot welding can be solved by adopting a combined connection mode of spot welding and structural adhesive.
The invention also discloses a vehicle which uses the combined structure of the car rear side wall assembly and the rear vehicle body assembly.
The vehicle includes a fuel vehicle or an electric vehicle.
The connecting structure of the car rear side wall assembly and the rear car body assembly and the car have the following advantages:
1. the invention forms a first annular cavity structure at the front part and a second annular cavity structure at the rear part by fixedly connecting the rear side wall inner plate assembly with the side plate assembly and the side wall rear support piece; the front part of the rear vehicle body is provided with a front reinforcing cavity, the rear part of the rear vehicle body is provided with a rear reinforcing cavity, the storage plate side plate assembly is fixedly connected with the front reinforcing cavity and the rear reinforcing cavity on the rear vehicle body, and a front support and a rear support two force transmission paths are formed, so that the overall bending and torsion rigidity of the vehicle body, the rigidity of a rear auxiliary frame attachment point and NVH performance are greatly improved.
2. The rear side wall assembly and the rear vehicle body assembly are comprehensively implemented by adopting three connection modes of spot welding, structural adhesive and screw connection, so that the problem that the height of the rim boundary is limited due to insufficient welding space of full spot welding connection can be effectively solved, the influence of engineering on the modeling is reduced, and the perfect design of the modeling is facilitated; meanwhile, the rigidity of connection can be improved, and the performance requirement of the vehicle body is effectively ensured.
Drawings
FIG. 1 is a schematic view (left side) of the connection of the rear side wall assembly to the rear body assembly of the present invention;
FIG. 2 is an elevational view of the attachment of the rear side wall assembly to the rear body assembly of the present invention;
FIG. 3 is a vehicle interior side view (left side) of the rear side wall assembly and rear body assembly attachment structure of the present invention;
FIG. 4 is a vehicle exterior side view (left side) of the rear side wall assembly and rear body assembly connection structure of the present invention;
FIG. 5 is a schematic illustration of the structure of the connection of the side body rear support with the side body rear panel assembly of the present invention;
FIG. 6 is a schematic view of the structure of the rear body and the connecting plate of the present invention;
FIG. 7 is a schematic view of the rear body structure of the present invention;
FIG. 8 is a schematic view of the rear body front panel structure of the present invention;
FIG. 9 is a schematic view of the structure of the rear connecting plate of the rear vehicle body of the present invention;
FIG. 10 is a schematic view of a side fascia inner panel assembly in accordance with the present invention;
FIG. 11 is a schematic view of the inner plate structure of the rear wheel pack of the present invention;
FIG. 12 is a schematic view of a side panel assembly of the present invention;
FIG. 13 is a schematic view of the structure of the front lower support plate of the storage plate of the present invention;
FIG. 14 is a schematic view of the structure of the lower back support plate of the storage plate of the present invention;
FIG. 15 is a schematic view of the structure of the front connecting plate of the side plate of the storage plate of the present invention;
FIG. 16 is a schematic view of a side panel structure of the storage panel of the present invention;
figure 17 is a schematic view of the side gusset rear support structure of the present invention.
Wherein each reference numeral in each figure is represented as:
1-a rear vehicle body assembly;
11-rear vehicle body, 111-front reinforcement cavity, 112-rear reinforcement cavity, 113-rear vehicle body mounting hole one, 114-rear vehicle body mounting hole two, 115-rear vehicle body mounting hole three, 116-rear vehicle body mounting hole four, 117-rear vehicle body mounting hole five, 118-rear vehicle body mounting hole six;
12-a rear vehicle body front connecting plate, 121-a main front connecting plate positioning hole, 122-a secondary front connecting plate positioning hole and 123-a rear vehicle body lap joint surface I; 124-a rear side wall assembly faying surface;
13-a rear car body rear connecting plate, 131-a rear connecting plate mounting via hole, 132-a main rear connecting plate positioning hole, 133-a first rear connecting plate mounting hole, 134-a second rear connecting plate mounting hole, 135-a second rear side wall assembly lap joint surface, 136-a second rear connecting plate positioning hole and 137-a second rear car body lap joint surface;
2-a rear side wall assembly;
21-rear side wall inner plate assembly
211-a rear wheel package inner plate, 2111-a package inner plate mounting via hole; 2112-inner plate-clad faying surface; 2113. 2114-first clad inner plate nut hole, 2115-second clad inner plate nut hole, 2116-third clad inner plate nut hole, 2117-fourth clad inner plate nut hole, 2118-main clad inner plate positioning hole, 2119-secondary clad inner plate positioning hole;
212-a rear wheel pack outer plate;
213-side body rear upper inner plate;
214-a side wall rear upper inner plate connecting plate;
215-roof rear cross rail support plate;
22-a storage plate edge plate assembly;
221-front lower support plate, 2211-first mounting via hole of the storage plate, 2212-second mounting via hole of the storage plate, 2213-first front lower support plate overlap surface, 2214-second front lower support plate overlap surface, 2215-main positioning hole of the front lower support plate, 2216-third front lower support plate overlap surface, 2217-fourth front lower support plate overlap surface, 2218-secondary positioning hole of the front lower support plate;
222-a rear lower support plate of the object placing plate, 2221-a lap joint surface I of the rear lower support plate, 2222-an object placing plate mounting through hole III, 2223-an object placing plate nut hole I and 2224-an object placing plate nut hole II; 2225-second rear lower support plate overlap surface, 2226-second rear lower support plate positioning hole, 2227-third rear lower support plate overlap surface, 2228-fourth rear lower support plate overlap surface, 2229-main rear lower support plate positioning hole;
223-a front connecting plate of a side plate of the storage plate;
2231-a first front connecting plate joint surface, 2232-a second front connecting plate joint surface, 2233-a second front connecting plate joint surface, 2234-a main front connecting plate joint surface, 2235-a third front connecting plate joint surface;
224—storage plate edge plate;
2241-a first object placing plate edge plate lap joint surface, 2242-a main positioning hole of an object placing plate edge plate, 2243-a second object placing plate edge plate lap joint surface, 2244-a third object placing plate edge plate lap joint surface, 2245-a fourth object placing plate edge plate lap joint surface, 2246-a sub positioning hole of the object placing plate edge plate;
23-side gusset rear support;
231-support landing surface one, 235-support landing surface two, 232-support landing surface three, 233-secondary support positioning holes, 234-primary support positioning holes, 236, 237-support nut holes;
3-M8 sealing bolts; 4-spot welding; 5-SPR self-piercing riveting; 6-a first force transfer path; 7-a second force transfer path; 8-M8 welding square nuts; 9-structural adhesive; 6-M8 welding square nuts; 7-structural adhesive.
Detailed Description
The invention will be described in detail below with reference to the attached drawings and specific examples:
the following embodiments of the present invention are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present invention from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience in describing the present invention and simplifying the description, and it is not indicated or implied that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present invention, and that the specific meanings of the terms described above may be understood by those skilled in the art according to circumstances.
Example 1,
The embodiment is a connection structure of a car rear side wall assembly and a rear car body assembly, and particularly as shown in fig. 1-17, the connection structure comprises a rear car body assembly 1 and a rear side wall assembly 2, wherein the rear car body assembly 1 comprises a rear car body 11, the front end of the rear car body 11 is fixedly connected with a rear car body front connection plate 12 in a manner of SPR self-piercing riveting and structural adhesive connection, and the rear end of the rear car body 11 is fixedly connected with a rear car body rear connection plate 13 in a manner of SPR self-piercing riveting and structural adhesive connection; as shown in fig. 7, the front portion of the rear vehicle body 11 is integrally press-formed with a front reinforcing cavity 111, and the rear portion is integrally press-formed with a rear reinforcing cavity 112.
In this embodiment, as shown in fig. 3 and 5, the back side wall assembly 2 includes a back side wall inner plate assembly 21, a storage plate side plate assembly 22, and a side wall rear support 23, where the back side wall inner plate assembly 21 and the side wall rear support 23 are disposed on two sides of the storage plate side plate assembly 22, the back side wall inner plate assembly 21 is fixedly connected with the rear vehicle body front connecting plate 12, and the side wall rear support 23 is fixedly connected with the rear vehicle body rear connecting plate 13; the side board assembly 22 is fixedly connected with the rear vehicle body 11 at the front reinforced cavity 111 and the rear reinforced cavity 112 respectively, and forms a rear side wall inner board assembly 21, the side board assembly 22 and a side wall rear support 23 which are fixedly connected to form a first annular cavity structure at the front part and a second annular cavity structure at the rear part. The first annular cavity structure and the second annular cavity structure at the rear part form two force transmission paths to form a part of the integral frame at the rear part of the automobile body, so that the bending and torsional rigidity of the automobile body, the rigidity of the attachment point of the rear auxiliary frame and the NVH performance can be improved.
As shown in fig. 7, in order to facilitate the use of the M8 sealing bolt 3 to fixedly connect the back side body assembly 2 with the back body assembly 1, the back body 11 of the present embodiment is provided with a first back body mounting hole 113 of Φ15mm in size connected with the back side body inner plate assembly 21, a second back body mounting hole 114 of Φ15mm in size connected with the back side body inner plate assembly 21 and the side plate assembly 22, a second back body mounting hole 115 of Φ14mm in size connected with the side plate assembly 22, a fourth back body mounting hole 116 of Φ15mm in size connected with the back side body inner plate assembly 21 and the side body back support 23, and a fifth back body mounting hole 117 of Φ14mm in size connected with the side body back support 23; and a rear vehicle body mounting hole six 118 which is connected with the rear side wall inner plate assembly 21 and has the size phi 14 mm.
As shown in fig. 8, two sides of the front connecting plate 12 of the rear vehicle body are respectively integrally formed with a first rear vehicle body lap surface 123 and a first rear side wall assembly lap surface 124, two ends of the first rear side wall assembly lap surface 124 are respectively provided with a main front connecting plate positioning hole 121 with the size of phi 10mm and a secondary front connecting plate positioning hole 122 with the size of phi 10mm, and as shown in fig. 3, the first rear vehicle body lap surface 123 and the rear vehicle body 11 are integrally connected by adopting 10 pieces of SPR self-piercing riveting 5 and a section of structural adhesive 9.
As shown in fig. 9, the rear vehicle body rear connecting plate 13 is provided with a rear connecting plate mounting via hole 131 with the size phi 14mm connected with the rear side wall inner plate assembly 21, the rear vehicle body rear connecting plate 13 is provided with a notch, the rear vehicle body rear connecting plate 13 positioned at two sides of the notch is respectively provided with a rear connecting plate mounting hole I133 with the size phi 14mm connected with the rear side wall inner plate assembly 21 and the side wall rear supporting piece 23, the rear connecting plate mounting hole II 134 with the size phi 14mm connected with the rear side wall inner plate assembly 21 and the side wall rear supporting piece 23, and the rear vehicle body rear connecting plate 13 between the rear connecting plate mounting via hole 131 and the rear connecting plate mounting hole I133 is provided with a main rear connecting plate positioning hole 132 with the size phi 10 mm; the two sides of the rear car body rear connecting plate 13 are respectively provided with a second rear side wall assembly lap joint surface 135 and a second rear car body lap joint surface 137, and a second rear connecting plate positioning hole 136 is formed in the second rear side wall assembly lap joint surface 135; as shown in fig. 3, the second lap 137 of the rear vehicle body and the rear vehicle body 11 are integrally connected by 9 pieces of SPR self-piercing riveting 5 and a section of structural adhesive 9.
In order to improve the manufacturing efficiency, the rear car body 11 is integrally cast by using an aluminum alloy plate, and to avoid structural corrosion caused by chemical reaction of a steel plate and an aluminum alloy, a good anti-corrosion effect is achieved, the rear car body front connecting plate 12 and the rear car body rear connecting plate 13 are both stamped by galvanized steel plates with the thickness of 0.9-1.1mm, and the galvanized steel material of the embodiment is D51D+Z and the thickness is 1.0mm. In order to solve the problem that the spot welding connection cannot be realized by mixing steel and aluminum, and simultaneously ensure the rigidity and the strength of structural connection, the rear car body front connecting plate 12, the rear car body rear connecting plate 13 and the rear car body 11 are integrally connected by adopting SPR self-piercing riveting 5 and structural adhesive 9.
As shown in fig. 3 and 5, the rear side body inner panel assembly 21 of the present embodiment includes a rear bag outer panel 212, a rear bag inner panel 211 fixedly connected to the rear bag outer panel 212 by spot welding, a side body rear upper inner panel 213, a side body rear upper inner panel connection panel 214, and a roof rear cross member support panel 215; the rear wheel package inner plate 211 and the upper inner plate connecting plate are arranged on two sides of the side wall rear upper inner plate 213, and the top cover rear cross beam supporting plate 215 is arranged on the side wall rear upper inner plate connecting plate 214; the rear wheel cover inner plate 211 is fixedly connected with the rear vehicle body assembly 1, the storage plate side plate assembly 22 and the side wall rear supporting piece 23.
As shown in fig. 11, the rear wheel cover inner plate 211 of the embodiment is formed by stamping a common galvanized steel sheet with a material of DC54d+z and a material thickness of 0.7 mm; the rear wheel inner plate 211 is provided with an inner plate mounting via hole 2111 with the size phi 14mm connected with the rear vehicle body 11, the lower side of the rear wheel inner plate 211 is provided with an inner plate lapping surface 2112 connected with the rear vehicle body assembly 1, the object placing plate edge plate assembly 22 and the side wall rear supporting piece 23, the middle part of the inner plate lapping surface 2112 is provided with two inner plate lapping nut holes 2113 and 2114 with the size phi 9mm connected with the rear vehicle body 11 and the object placing plate edge plate assembly 22, and the inner plate lapping surface 2112 is provided with an inner plate lapping nut hole two 2115 and an inner plate lapping nut hole three 2116 with the size phi 9mm connected with the rear vehicle body 11 and the side wall rear supporting piece 23 and an inner plate lapping nut hole four 2117 with the size phi 9mm connected with the rear vehicle body 11; a main bag inner plate positioning hole 2118 and a secondary bag inner plate positioning hole 2119 are respectively formed on two sides of the rear wheel bag inner plate 211; and M8 welding square nuts 8 are welded at the first 2113 and 2114 inner plate nut holes, the second 2115 inner plate nut hole, the third 2116 inner plate nut hole and the fourth 2117 inner plate nut hole respectively, and a mounting point structure is formed by the welding square nuts 8.
The hole centers of the first nut hole 2113 of the inner plate covered, the first mounting through hole 2211 of the object placing plate and the second mounting hole 114 of the rear vehicle body are aligned, and the rear side wall assembly 2 is fixedly connected with the rear vehicle body assembly 1 by adopting an M8 sealing bolt 3; and the centers of the first nut hole 2114 of the inner plate, the third through hole 2222 of the object placing plate and the second mounting hole 114 of the rear vehicle body are aligned, and the rear side wall assembly 2 is fixedly connected with the rear vehicle body assembly 1 by adopting the M8 sealing bolt 3.
As shown in fig. 4 and 10, the storage plate side plate assembly 22 of the present embodiment includes a storage plate front lower support plate 221, a storage plate rear lower support plate 222, a storage plate side plate front connection plate 223, and a storage plate side plate 224; the lower back support plate 222 and the lower front support plate 221 are connected to two sides of the front connecting plate 223 by spot welding, and the side plate 224 is fixedly connected to the lower back support plate 222. The front lower support plate 221 of the storage plate, the rear lower support plate 222 of the storage plate and the front connecting plate 223 of the storage plate in this embodiment are all made of common high-strength steel plates with the material thickness of 1.0mm by punching and forming with the material CA280/440 VK.
As shown in fig. 13, a first storage board mounting via hole 2211 with the size phi 12mm connected with the rear vehicle body 11 and the rear side wall inner plate assembly 21 is formed at the end of the storage board front lower support plate 221 in the embodiment, a second storage board mounting via hole 2212 with the size phi 12mm connected with the rear vehicle body 11 is formed at the end of the storage board front lower support plate 221, a first front lower support plate overlap surface 2213, a second front lower support plate overlap surface 2214, a third front lower support plate overlap surface 2216 and a fourth front lower support plate overlap surface 2217 connected with the rear side wall inner plate assembly 21, and a front lower support plate main positioning hole 2215 and a front lower support plate sub positioning hole 2218 are further formed in the storage board front lower support plate 221.
As shown in fig. 14, a first rear lower support plate overlap surface 2221, a second rear lower support plate overlap surface 2225, a third rear lower support plate overlap surface 2227 and a fourth rear lower support plate overlap surface 2228 connected with the side wall inner plate assembly are arranged on the rear lower support plate 222 of the storage plate, a main rear lower support plate positioning hole 2229 and a secondary rear lower support plate positioning hole 2226 are arranged on the rear lower support plate 222 of the storage plate, a third storage plate mounting via hole 2222 with the size phi 12mm connected with the rear vehicle body 11 and the rear side wall inner plate assembly 21, and a first storage plate nut hole 2223 and a second storage plate nut hole 2224 with the size phi 9mm connected with the rear vehicle body 11 are arranged on the rear lower support plate 222 of the storage plate; and the third lower support plate overlap surface 2216 is fixedly connected with the second rear lower support plate overlap surface 2225 through spot welding 4.
The front lower support plate 221 of the storage plate is connected with the rear lower support plate 222 of the storage plate through spot welding 4 to form a cavity structure; an M8 welding square nut 8 is welded at the first 2223 and second 2224 positions of the nut holes of the storage plate, and a mounting point structure is formed by the welding square nut 8; the second storage plate mounting through hole 2212, the second storage plate nut hole 2224 and the second rear vehicle body mounting hole 115 are aligned in hole center and fixedly connected with the same M8 sealing bolt 3, so as to form a mounting structure for connecting the rear side wall assembly 2 with the rear vehicle body assembly 1; the first 2223 of the nut hole of the storage plate with the size phi 9mm is aligned with the hole center of the second 115 of the rear vehicle body mounting hole with the size phi 14mm, and is fixedly connected by adopting one sealing bolt 3, so as to form a mounting structure for connecting the rear side wall assembly 2 with the rear vehicle body assembly 1.
As shown in fig. 15, the edge of the front connecting plate 223 of the storage plate is integrally formed with a first front connecting plate joint surface 2231, a second front connecting plate joint surface 2233 and a third front connecting plate joint surface 2235, and the two ends of the front connecting plate 223 of the storage plate are provided with a main positioning hole 2234 and a secondary positioning hole 2232.
As shown in fig. 16, the edge of the storage board edge 224 is provided with a first storage board edge joint 2241, a second storage board edge joint 2243, a third storage board edge joint 2244, and a fourth storage board edge joint 2245, and the middle of the storage board edge 224 is provided with a storage board edge main positioning hole 2242 and a storage board edge sub positioning hole 2246. The third 2235 of the front connecting plate of the side plate is connected with the fourth 2217 of the front lower supporting plate through spot welding 4; the second 2233 of the front connecting plate of the side plate is connected with the third 2227 of the back lower supporting plate and the first of the side plate of the object placing plate by the spot welding 4 to form the side plate assembly 22 of the object placing plate.
As shown in fig. 17, two sides of the side wall rear support 23 of the present embodiment are respectively provided with a first support member joint surface 231 and a second support member joint surface 235 fixedly connected with the rear side wall inner plate assembly 21, and one side of the side wall rear support 23, which is close to the storage plate side plate assembly 22, is provided with a third support member joint surface; the upper part of the side wall rear supporting piece 23 is provided with a secondary supporting piece locating hole 233 with the size phi 8 multiplied by 10mm, the middle part is provided with a main supporting piece locating hole 234 with the size phi 8mm, the lower part is provided with two supporting piece nut holes 236 and 237 with the size phi 8 multiplied by 10mm, which are connected with the rear vehicle body 11, and the welding square nuts 8 with the model M8 are welded at the positions of the two supporting piece nut holes 236 and 237, and form a mounting point structure with the welding square nuts 8. The support member nut holes 236 and 237 are aligned with the hole centers of the rear vehicle body mounting holes five 117 respectively, and the rear side wall assembly 2 and the rear vehicle body assembly 1 are fixedly connected by adopting the M8 sealing bolts 3. The material adopted for the side wall rear supporting piece 23 in the embodiment is CA280/440VK, and the common high-strength steel plate with the material thickness of 1.2mm is punched and formed.
The hole centers of a second inner plate-covered nut hole 2115 with the size phi 9mm, a fourth rear vehicle body mounting hole 116 with the size phi 15mm and a second rear connecting plate mounting hole 134 with the size phi 14mm are aligned, and an M8 sealing bolt 3 is adopted to fixedly connect the rear side wall assembly 2 with the rear vehicle body assembly 1; the hole centers of a covered inner plate nut hole III 2116 with the size phi 9mm, a rear vehicle body mounting hole IV 116 with the size phi 15mm and a rear connecting plate mounting hole I133 with the size phi 14mm are aligned, and an M8 sealing bolt 3 is adopted to fixedly connect the rear side wall assembly 2 with the rear vehicle body assembly 1; the hole centers of the inner plate-covered nut hole IV 2117 with the size phi 9mm, the rear vehicle body mounting hole VI 118 with the size phi 15mm and the rear connecting plate mounting via hole 131 with the size phi 14mm are aligned, and the rear side wall assembly 2 is fixedly connected with the rear vehicle body assembly 1 by adopting an M8 sealing bolt 3; the inner plate mounting via hole 2111 of the package with the size phi 14mm is aligned with the hole center of the rear connecting plate mounting via hole 131 with the size phi 15mm, and the rear side wall assembly 2 is fixedly connected with the rear vehicle body assembly 1 by adopting an M8 sealing bolt 3.
The rear side wall inner plate assembly 21 and the storage plate side plate assembly 22 of the embodiment are welded by adopting 12-14 welding spots at the first 2213 and the first 2221 of the front lower support plate, 13 rear side wall inner plate assemblies 21 and the rear side wall support 23 are welded by adopting 10-12 welding spots at the first 231 and the second 235 of the support member, and 11 rear side wall inner plate assemblies are welded by adopting 11 welding spots.
The front lower support plate joint surface one 2213, the front lower support plate joint surface two 2214, the front lower support plate joint surface three 2216, the rear lower support plate joint surface one 2221, the rear lower support plate joint surface four 2228, the side plate front connecting plate joint surface one 2231, the side plate joint surface two 2243 and the side plate joint surface three 2244 of the side plate assembly 22 of the rear side wall of the embodiment are welded by spot welding 4 to form the front cavity structure of the rear side wall inner plate assembly.
The first 231 and second 235 support piece joint surfaces of the rear side wall inner plate assembly 21 and the rear side wall support piece 23 are welded by 11 spot welds 4, and the third 232 support piece joint surface of the rear side wall support piece 23 and the fourth 2245 object placing plate joint surface of the object placing plate edge plate assembly 22 are welded by 6 spot welds 4, so that the rear cavity structure of the rear side wall inner plate assembly is formed.
The rear vehicle body assembly 1 and the rear side wall assembly 2 of the embodiment are connected with a section of structural adhesive 9 by adopting 9-11 spot welds at a first 124 of a lap joint surface of the rear side wall assembly of a front connecting plate 12 of the rear vehicle body, and 10 in the embodiment; the rear vehicle body assembly 1 and the rear side wall assembly 2 are connected with one section of structural adhesive 9 by adopting 3-5 spot welds at a second 135 joint surface of the rear side wall assembly of a rear vehicle body rear connecting plate 13, and 4 spot welds are adopted in the embodiment; the rear car body assembly 1 is connected with the rear car body lap joint surface II 137 of the rear car body rear connecting plate 13 of the rear side wall assembly 2 by adopting a section of structural adhesive 9.
The whole rear vehicle body assembly 1 and the rear side wall assembly 2 are connected by adopting 14 spot welds 4, three-section structural adhesive 9 and 10M 8 sealing bolts 3. The connecting structure of the rear side wall assembly 2 and the rear vehicle body assembly 1 adopts three connecting modes of spot welding, structural adhesive and screw connection to be comprehensively implemented, so that the problem that the boundary of the modeling wheel arch is changed due to insufficient welding space of full spot welding connection is effectively solved, the influence of engineering on modeling is reduced, and the perfect design of modeling is facilitated; simultaneously, two force transmission paths 6 and 7 of a front support and a rear support are formed structurally, and the overall bending and torsion rigidity of the vehicle body, the rigidity of a rear auxiliary frame attachment point and NVH performance are greatly improved.
EXAMPLE 2,
The present embodiment is a vehicle using the combination structure of the sedan rear side body assembly and the rear vehicle body assembly in embodiment 1, and the vehicle is a fuel vehicle or an electric vehicle.
From the above embodiment, the storage board side board assembly 22 is connected at the front reinforcing cavity 111 of the rear vehicle body 11 by using 4M 8 sealing bolts 3 to form a front cavity structure of the rear side wall assembly, and form a first force transmission path 6, and the first annular cavity structure is formed at the rear of the vehicle body together with the storage board side board assembly 22, the rear side wall assembly 2 and the rear vehicle body assembly 1. The rear reinforcing cavity 112 of the rear vehicle body 11 is connected by 4M 8 sealing bolts 3 to form a rear cavity structure of the rear side wall assembly, a second force transmission path 7 is formed, and the second annular cavity structure is formed at the rear part of the vehicle body by the rear side wall assembly, the storage plate side plate assembly 22, the rear side wall assembly 2 and the rear vehicle body assembly 1. The two annular cavity structures form part of the integral frame at the rear part of the vehicle body, and the bending torsion rigidity, the rear auxiliary frame attachment point rigidity and the NVH performance of the vehicle body are greatly improved.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention. The technology, shape, and construction parts of the present invention, which are not described in detail, are known in the art.
Claims (20)
1. The utility model provides a connection structure of car rear side wall assembly and back automobile body assembly, includes back automobile body assembly and back side wall assembly, its characterized in that: the rear car body assembly and the rear side wall assembly form an integral structure by adopting a spot welding, structural adhesive and screw connection mode; the rear vehicle body assembly comprises a rear vehicle body, the front end of the rear vehicle body is fixedly connected with a rear vehicle body front connecting plate, the rear end of the rear vehicle body is fixedly connected with a rear vehicle body rear connecting plate, the front part of the rear vehicle body is provided with a front reinforcing cavity, and the rear part of the rear vehicle body is provided with a rear reinforcing cavity; the rear side wall assembly comprises a rear side wall inner plate assembly, a storage plate side plate assembly and a side wall rear supporting piece, wherein the rear side wall inner plate assembly and the side wall rear supporting piece are arranged on two sides of the storage plate side plate assembly, the rear side wall inner plate assembly is fixedly connected with a rear vehicle body front connecting plate, and the side wall rear supporting piece is fixedly connected with a rear vehicle body rear connecting plate; the storage plate side plate assembly is fixedly connected with the rear vehicle body at the front reinforcing cavity and the rear reinforcing cavity respectively to form a rear side wall inner plate assembly, the storage plate side plate assembly and the side wall rear supporting piece are fixedly connected to form a first annular cavity structure at the front part and a second annular cavity structure at the rear part.
2. The connection structure of a car rear side wall assembly and a rear car body assembly according to claim 1, wherein: the rear vehicle body is provided with a first rear vehicle body mounting hole connected with the rear side wall inner plate assembly, a second rear vehicle body mounting hole connected with the rear side wall inner plate assembly and the storage plate side plate assembly, a third rear vehicle body mounting hole connected with the storage plate side plate assembly, a fourth rear vehicle body mounting hole connected with the rear side wall inner plate assembly and the side wall rear supporting piece, a fifth rear vehicle body mounting hole connected with the side wall rear supporting piece and a sixth rear vehicle body mounting hole connected with the rear side wall inner plate assembly.
3. The connection structure of a car rear side wall assembly and a rear car body assembly according to claim 2, wherein: the front connecting plate of the rear car body is provided with a first rear car body overlap surface and a first rear side wall assembly overlap surface respectively on two sides, the two ends of the first rear side wall assembly overlap surface are provided with a main front connecting plate positioning hole and a secondary front connecting plate positioning hole respectively, and the first rear car body overlap surface and the rear car body are connected into a whole by adopting SPR self-piercing riveting and a section of structural adhesive.
4. A car rear side wall assembly and rear body assembly connection structure as defined in claim 3, wherein: the rear connecting plate of the rear vehicle body is provided with a rear connecting plate mounting via hole connected with the rear side wall inner plate assembly, the rear connecting plate of the rear vehicle body is provided with a notch, the rear connecting plates of the rear vehicle body positioned at two sides of the notch are respectively provided with a rear connecting plate mounting hole I connected with the rear side wall inner plate assembly and the side wall rear supporting piece, the rear connecting plate mounting hole II connected with the rear side wall inner plate assembly and the side wall rear supporting piece, and the rear connecting plate between the rear connecting plate mounting via hole and the rear connecting plate mounting hole I is provided with a main rear connecting plate positioning hole; the two sides of the rear connecting plate of the rear car body are respectively provided with a second lap joint surface of the rear side wall assembly and a second lap joint surface of the rear car body, and the lap joint surface of the rear side wall assembly is provided with a positioning hole of the secondary rear connecting plate; and the second lap joint surface of the rear vehicle body is integrally connected with the rear vehicle body by adopting SPR self-piercing riveting and a section of structural adhesive.
5. The connection structure of a car rear side wall assembly and a rear car body assembly according to claim 4, wherein: the rear car body is formed by integrally casting an aluminum alloy plate, and the front connecting plate of the rear car body and the rear connecting plate of the rear car body are formed by stamping galvanized steel plates with the thickness of 0.9-1.1 mm.
6. The connection structure of a car rear side wall assembly and a rear car body assembly according to claim 4, wherein: the rear side wall inner plate assembly comprises a rear wheel bag outer plate, a rear wheel bag inner plate fixedly connected to the rear wheel bag outer plate, a side wall rear upper inner plate connecting plate and a top cover rear cross beam supporting plate; the rear wheel bag inner plate and the upper inner plate connecting plate are arranged on two sides of the side wall rear upper inner plate, and the top cover rear cross beam supporting plate is arranged on the side wall rear upper inner plate connecting plate; the rear wheel bag inner plate is fixedly connected with the rear vehicle body assembly, the storage plate side plate assembly and the side wall rear supporting piece.
7. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 6, wherein: the rear wheel bag inner plate is provided with a bag inner plate mounting via hole connected with a rear vehicle body, the lower side of the rear wheel bag inner plate is provided with a bag inner plate joint surface connected with a rear vehicle body assembly, a storage plate side plate assembly and a side wall rear support piece, the middle part of the bag inner plate joint surface is provided with a bag inner plate nut hole I connected with the rear vehicle body and the storage plate side plate assembly, and the bag inner plate joint surface is provided with a bag inner plate nut hole II, a bag inner plate nut hole III and a bag inner plate nut hole IV connected with the rear vehicle body and the side wall rear support piece; the two sides of the rear wheel bag inner plate are respectively provided with a main bag inner plate positioning hole and a secondary bag inner plate positioning hole; and welding square nuts are welded around the first inner plate-covered nut hole, the second inner plate-covered nut hole, the third inner plate-covered nut hole and the inner plate-covered nut hole respectively, and the welding square nuts form a mounting point structure.
8. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 7, wherein: the first nut hole of the inner plate of the bag, the first mounting through hole of the object placing plate and the hole center of the second mounting hole of the rear vehicle body are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt; and the nut hole I of the inner plate of the bag, the mounting hole III of the object placing plate and the hole center of the mounting hole II of the rear vehicle body are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt.
9. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 7, wherein: the storage plate side plate assembly comprises a storage plate front lower support plate, a storage plate rear lower support plate, a storage plate side plate front connecting plate and a storage plate side plate; the lower back support plate of the storage plate and the lower front support plate of the storage plate are arranged on two sides of the front connecting plate of the storage plate side plate, and the storage plate side plate is fixedly connected with the lower back support plate of the storage plate.
10. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 9, wherein: the front lower support plate of the storage plate is also provided with a front lower support plate main positioning hole and a front lower support plate secondary positioning hole; the rear lower support plate of the object placing plate is provided with a rear lower support plate main positioning hole and a rear lower support plate secondary positioning hole, an object placing plate mounting through hole III connected with a rear vehicle body and a rear side wall inner plate assembly, and an object placing plate nut hole I and an object placing plate nut hole II connected with the rear vehicle body; and the third lower support plate overlap surface is fixedly connected with the rear lower support plate overlap surface through spot welding.
11. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 10, wherein: the front lower support plate of the storage plate is connected with the rear lower support plate of the storage plate to form a cavity structure; welding square nuts are welded at the first storage plate nut hole and the second storage plate nut hole, and a mounting point structure is formed by the welding square nuts and the welding square nuts; the second object placing plate mounting through hole, the second object placing plate nut hole and the third rear vehicle body mounting hole are aligned in hole center and fixedly connected with the same sealing bolt, so that a mounting structure for connecting the rear side wall assembly with the rear vehicle body assembly is formed; the first nut hole of the object placing plate is aligned with the hole center of the third mounting hole of the rear vehicle body, and is fixedly connected with the same sealing bolt, so that a mounting structure for connecting the rear side wall assembly with the rear vehicle body assembly is formed.
12. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 11, wherein: the two sides of the side wall rear supporting piece are respectively provided with a first supporting piece lap joint surface and a second supporting piece lap joint surface which are fixedly connected with the rear side wall inner plate assembly, and one side, close to the storage plate side plate assembly, of the side wall rear supporting piece is provided with a third supporting piece lap joint surface; the upper portion of side wall rear portion support piece has seted up secondary support piece locating hole, and the main support piece locating hole has been seted up at the middle part, and the support piece nut hole of being connected with the back automobile body has been seted up to the lower part, support piece nut hole department welding has welding square nut, constitutes mounting point structure with welding square nut.
13. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 12, wherein: the edge of the side plate front connecting plate of the storage plate is integrally formed with a first side plate front connecting plate joint surface, a second side plate front connecting plate joint surface and a third side plate front connecting plate joint surface, and the two ends of the side plate front connecting plate of the storage plate are provided with front connecting plate main positioning holes and front connecting plate secondary positioning holes; the edge of the object placing plate side plate is provided with an object placing plate side plate lap joint surface I, an object placing plate side plate lap joint surface II, an object placing plate side plate lap joint surface III and an object placing plate side plate lap joint surface IV; the third connecting plate connecting surface of the side plate is connected with the fourth connecting plate connecting surface of the front lower supporting plate through spot welding; the second connecting plate connecting surface of the front side plate is connected with the third connecting plate connecting surface of the rear lower supporting plate and the first connecting plate connecting surface of the side plate of the storage plate through spot welding, so that the side plate assembly of the storage plate is formed.
14. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 12, wherein: and the nut holes of the supporting piece are aligned with the hole centers of the rear vehicle body mounting holes five respectively, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt.
15. The connection structure of a car rear side wall assembly and a rear car body assembly as set forth in claim 12, wherein: the second inner plate nut hole, the fourth rear vehicle body mounting hole and the second rear connecting plate mounting hole are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt; the nut hole III of the inner plate, the mounting hole IV of the rear vehicle body and the hole center of the mounting hole I of the rear connecting plate are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt; the nut hole IV of the inner plate of the bag, the mounting hole VI of the rear vehicle body and the hole center of the mounting via hole of the rear connecting plate are aligned, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt; and the inner plate mounting via hole of the bag is aligned with the hole center of the rear connecting plate mounting via hole, and the rear side wall assembly is fixedly connected with the rear vehicle body assembly by adopting a sealing bolt.
16. The structure for connecting a side body assembly to a rear body assembly of a car as set forth in claim 15, wherein: the rear side wall inner plate assembly is welded with a first front lower support plate joint surface, a second front lower support plate joint surface, a third front lower support plate joint surface, a first rear lower support plate joint surface, a fourth rear lower support plate joint surface, a first sideboard front connecting plate joint surface, a second sideboard joint surface and a third sideboard joint surface through spot welding to form a front cavity structure of the rear side wall inner plate assembly; the rear side wall inner plate assembly is welded with the first supporting piece joint surface and the second supporting piece joint surface through 10-12 spot welds, and the third supporting piece joint surface and the fourth supporting piece joint surface are welded with the fourth supporting piece joint surface through 5-7 spot welds, so that a rear cavity structure of the rear side wall inner plate assembly is formed.
17. The structure for connecting a side body assembly to a rear body assembly of a car as set forth in claim 13, wherein: the rear side wall inner plate assembly and the storage plate side plate assembly are welded by adopting 12-14 welding spots at the joint surface of the front lower support plate and the joint surface of the rear lower support plate, and the rear side wall inner plate assembly and the side wall rear support piece are welded by adopting 10-12 welding spots at the joint surface I of the support piece and the joint surface II of the support piece.
18. The connection structure of a car rear side wall assembly and a rear car body assembly according to claim 4, wherein: the rear car body assembly and the rear side wall assembly are connected with one section of structural adhesive by adopting 9-11 spot welds at one joint surface of the rear side wall assembly of the front connecting plate of the rear car body; the rear car body assembly and the rear side wall assembly are connected with one section of structural adhesive at the second joint surface of the rear side wall assembly of the rear car body rear connecting plate by 3-5 spot welds; the rear car body assembly is connected with the rear side wall assembly by adopting a section of structural adhesive on a second rear car body lap joint surface of a rear car body rear connecting plate.
19. A vehicle, characterized in that: the vehicle comprising the connection structure of the sedan side body assembly and the rear vehicle body assembly of any one of claims 1-18.
20. The vehicle of claim 19, wherein the vehicle comprises a fuel vehicle or an electric vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210778322.3A CN115158472B (en) | 2022-06-29 | 2022-06-29 | Connection structure and vehicle of car rear side wall assembly and rear vehicle body assembly |
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| CN202210778322.3A CN115158472B (en) | 2022-06-29 | 2022-06-29 | Connection structure and vehicle of car rear side wall assembly and rear vehicle body assembly |
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| CN115158472B true CN115158472B (en) | 2023-10-20 |
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| CN210653375U (en) * | 2019-07-09 | 2020-06-02 | 广州汽车集团股份有限公司 | Steel-aluminum hybrid vehicle body structure and automobile |
| CN213442783U (en) * | 2020-11-13 | 2021-06-15 | 上海诺拉汽车科技有限公司 | Novel vehicle body C column reinforcing structure |
| CN215851491U (en) * | 2021-06-29 | 2022-02-18 | 上汽通用五菱汽车股份有限公司 | Double-ring rear vehicle body structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7024748B2 (en) * | 2019-02-27 | 2022-02-24 | マツダ株式会社 | Rear body structure of the vehicle |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202518357U (en) * | 2012-02-29 | 2012-11-07 | 重庆长安汽车股份有限公司 | Automobile article shelf supporting frame |
| CN210653375U (en) * | 2019-07-09 | 2020-06-02 | 广州汽车集团股份有限公司 | Steel-aluminum hybrid vehicle body structure and automobile |
| CN213442783U (en) * | 2020-11-13 | 2021-06-15 | 上海诺拉汽车科技有限公司 | Novel vehicle body C column reinforcing structure |
| CN215851491U (en) * | 2021-06-29 | 2022-02-18 | 上汽通用五菱汽车股份有限公司 | Double-ring rear vehicle body structure |
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