CN115416761B - Connecting structure of front engine room assembly and side wall assembly and manufacturing method thereof - Google Patents
Connecting structure of front engine room assembly and side wall assembly and manufacturing method thereof Download PDFInfo
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- CN115416761B CN115416761B CN202211164865.2A CN202211164865A CN115416761B CN 115416761 B CN115416761 B CN 115416761B CN 202211164865 A CN202211164865 A CN 202211164865A CN 115416761 B CN115416761 B CN 115416761B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 238000003466 welding Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- 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
-
- 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
- B62D25/082—Engine compartments
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a connecting structure of a front engine room assembly and a side wall assembly and a manufacturing method thereof, and relates to the technical field of automobile bodies; the side wall assembly comprises an A column upper inner plate and an A column lower inner plate, wherein the A column upper inner plate and the A column lower inner plate are of an up-down block structure; the front engine room assembly comprises a side sealing plate and a warm air blower pressure chamber plate, wherein the side sealing plate and the lower inner plate of the A column are of a left-right block structure, and the warm air blower pressure chamber plate is arranged on the side sealing plate. The invention has the advantages that: the material utilization rate of the lower inner plate of the A column is improved, the matching surface between the front cabin assembly and the side wall assembly is simplified, the production beat is shortened, and the manufacturing and the precision control are facilitated.
Description
Technical Field
The invention relates to the technical field of automobile bodies, in particular to a connecting structure of a front engine room assembly and a side wall assembly and a manufacturing method thereof.
Background
The connection structure of the front cabin assembly and the side wall assembly of the bus splice welding of the white body welding assembly is an important connection structure of the upper body, and relates to the rigidity and the mode of the body, the rationality of structural block division and the welding manufacturability.
The patent document with publication number CN112278086A discloses a novel car body front end lap joint structure, which comprises an upper inner plate of a column A, an upper section of a lower inner plate of the column A and a lower section of the lower inner plate of the column A, wherein the upper section of the lower inner plate of the column A and a pressure chamber plate of a fan heater are welded into a fan heater assembly firstly, then are welded with a front wall plate and the like to form a lower car body assembly, and the lower car body assembly is welded with a side wall assembly. The existing car body front end lap joint structure has the following problems: the bus welding beat is long, matching parts and boundaries at the upper section of the lower inner plate of the A column are complex, and matching difficulty is high; in the prior design, the maximum width of the lower section of the lower inner plate of the A column needs to span the front end of the front wall plate and the seam allowance of the side wall door frame, which is close to twice the width of the main body of the lower inner plate of the A column, and the utilization rate of the material of the lower section of the lower inner plate of the A column is low; the structural rigidity of the fan heater pressure chamber plate is weaker.
The patent document with the publication number of CN202147726U discloses a connection structure of an automobile fan heater pressure chamber plate and a front upright inner skin, which aims to solve the problems of rigidity and mode of a white automobile body which occur after the fan heater pressure chamber plate is connected with the front upright inner skin through a side flanging, and is additionally provided with connecting pieces which are respectively connected with the fan heater pressure chamber plate and the front upright inner skin in a threaded manner, and the weaker rigidity of the connection area of the fan heater pressure chamber plate and the front upright inner skin is a more common problem in new automobile type development.
Disclosure of Invention
The invention aims to solve the technical problem of simplifying the matching surface between the front engine room assembly and the side wall assembly and improving the material utilization rate of the lower inner plate of the A column.
The invention solves the technical problems by the following technical means: a connecting structure of a front engine room assembly and a side wall assembly comprises the side wall assembly and the front engine room assembly; the side wall assembly comprises an A column upper inner plate and an A column lower inner plate, wherein the A column upper inner plate and the A column lower inner plate are of an up-down block structure; the front engine room assembly comprises a side sealing plate and a warm air blower pressure chamber plate, wherein the side sealing plate and the lower inner plate of the A column are of a left-right block structure, and the warm air blower pressure chamber plate is arranged on the side sealing plate.
The front cabin assembly and the side wall assembly are improved from the traditional upper and lower block structures to the left and right block structures, so that the structure of the lower inner plate of the A column is optimized, the oversized extension of the lower inner plate of the A column in the X direction is avoided, and the material utilization rate of the lower inner plate of the A column is improved; the matching surface between the front engine room assembly and the side wall assembly only comprises the joint surface of the side sealing plate and the side wall assembly, so that the matching surface is simplified, the production beat is shortened, and the manufacturing and the precision control are facilitated.
Preferably, the fan heater pressure chamber plate, the side sealing plate and the A column lower inner plate form three layers from top to bottom, the fan heater pressure chamber plate is welded with the two layers of the side sealing plate, the side sealing plate is welded with the two layers of the A column lower inner plate, and plug welding and screw connection are carried out between the three layers.
The whole front cabin assembly and the pressure chamber plate of the fan heater are reinforced simultaneously through plug welding and screw connection, so that the rigidity and the mode of the fan heater are obviously improved; compared with the prior art, the connecting bracket is omitted, the material use is reduced, and the production beat is shortened.
Preferably, the upper structure of the fan heater pressure chamber plate is spot-welded with the side sealing plate at a first flanging of the edge of the upper structure, and the lower structure of the fan heater pressure chamber plate is spot-welded with the side sealing plate at a second flanging of the edge of the lower structure.
Preferably, two plug welds are performed among the first flanging, the side sealing plates and the A-pillar lower inner plate three layers, one plug weld is performed among the second flanging, the side sealing plates and the A-pillar lower inner plate three layers, and two screw joints are performed among the second flanging, the side sealing plates and the A-pillar lower inner plate three layers.
Preferably, the front nacelle assembly further comprises a front wall panel, the front wall panel being provided on the side seal plates.
Preferably, the side surface of the lower structure of the fan heater pressure chamber plate is connected with the structural section of the front wall plate and welded with the front wall plate; the front wall plate is welded with the side sealing plate at the upper part of the flanging at the edge of the front wall plate, and is welded with the lower inner plate of the column A at the lower part of the flanging at the edge of the front wall plate.
Preferably, the side wall assembly further comprises an A-pillar reinforcing plate, and a cavity structure is formed between the A-pillar reinforcing plate and the A-pillar lower inner plate.
Preferably, the edge of the side sealing plate is welded with the lower inner plate of the a column, the middle position of the upper part of the side sealing plate is welded with the reinforcing plate of the a column, and the side sealing plate seals the cavity structure.
Preferably, the a-pillar upper inner panel is welded with the a-pillar lower inner panel.
The structural design and the boundary of the upper inner plate of the A column are converged with the prior art, and the upper inner plate of the A column and the lower inner plate of the A column are arranged on the side wall assembly, so that the welding manufacturability characteristics and advantages of the traditional side wall assembly are reserved.
A manufacturing method of a connecting structure of a front engine room assembly and a side wall assembly is used for manufacturing the connecting structure of the front engine room assembly and the side wall assembly, and comprises the following steps: the side sealing plate, the fan heater pressure chamber plate and the front wall plate are welded to form a front engine room assembly, and then the side sealing plate is welded to one side of the lower inner plate of the A column, so that the installation between the front engine room assembly and the side wall assembly is completed.
The welding process is optimized, the characteristics of the traditional side wall assembly welding process are reserved, and the matching process between the front engine room assembly and the side wall assembly is simplified.
The invention has the advantages that:
1. the front cabin assembly and the side wall assembly are improved from the traditional upper and lower block structures to the left and right block structures, so that the structure of the lower inner plate of the A column is optimized, the oversized extension of the lower inner plate of the A column in the X direction is avoided, and the material utilization rate of the lower inner plate of the A column is improved; the matching surface between the front engine room assembly and the side wall assembly only comprises the joint surface of the side sealing plate and the side wall assembly, so that the matching surface is simplified, the production beat is shortened, and the manufacturing and the precision control are facilitated.
2. The whole front cabin assembly and the pressure chamber plate of the fan heater are reinforced simultaneously through plug welding and screw connection, so that the rigidity and the mode of the fan heater are obviously improved; compared with the prior art, the connecting bracket is omitted, the material use is reduced, and the production beat is shortened.
3. The structural design and the boundary of the upper inner plate of the A column are converged with the prior art, and the upper inner plate of the A column and the lower inner plate of the A column are arranged on the side wall assembly, so that the advantages of the traditional side wall assembly are reserved.
4. The welding process is optimized, the characteristics of the traditional side wall assembly welding process are reserved, and the matching process between the front engine room assembly and the side wall assembly is simplified.
Drawings
FIG. 1 is a partial schematic view of a prior art connection structure of a front nacelle assembly and a side wall assembly.
Fig. 2 is an exploded view of the prior art a pillar upper inner panel, a pillar lower inner panel upper section, and a pillar lower inner panel lower section.
FIG. 3 is a partial schematic view of a prior art front nacelle assembly and side wall assembly connection structure with the addition of a connecting bracket.
FIG. 4 is a partial schematic view of a connection structure of a front nacelle assembly and a side wall assembly according to an embodiment of the invention.
Fig. 5 is an exploded view of an upper a-pillar inner panel, a lower a-pillar inner panel, and a side closure panel according to an embodiment of the present invention.
FIG. 6 is a schematic top cross-sectional view of a connection structure of a front nacelle assembly and a side wall assembly according to an embodiment of the invention.
FIG. 7 is a schematic view of a lower section of a connection structure of a front nacelle assembly and a side wall assembly according to an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
As shown in fig. 1 and 2, the connecting structure of the existing front cabin assembly and the side wall assembly comprises a side wall assembly and a front cabin assembly, wherein the side wall assembly comprises an a-pillar upper inner plate 10 and an a-pillar lower inner plate lower section 20, and the front cabin assembly comprises an a-pillar lower inner plate upper section 30, a fan heater pressure chamber plate 40 and a front wall plate 50; the A-pillar upper inner plate 10, the A-pillar lower inner plate upper section 30 and the A-pillar lower inner plate lower section 20 are sequentially arranged from top to bottom, and the fan heater pressure chamber plate 40 and the front wall plate 50 are arranged on the A-pillar lower inner plate upper section 30; the lower inner panel section 20 of the lower a-pillar has a large extension in the X-direction and low material utilization.
The manufacturing process of the connecting structure of the existing front engine room assembly and the side wall assembly comprises the following steps: welding a fan heater pressure chamber plate 40, a front wall plate 50 and an upper section 30 of an A-pillar lower inner plate to form a front engine room assembly, and welding the upper section 30 of the A-pillar lower inner plate between the upper A-pillar inner plate 10 and the lower section 20 of the A-pillar lower inner plate to finish the installation between the front engine room assembly and a side wall assembly; in order to improve the structural rigidity of the front cabin assembly, three plug welds 60 are further carried out between the A-pillar lower inner panel upper section 30 and the A-pillar lower inner panel lower section 20, and two screw joints 70 are further carried out between the A-pillar lower inner panel upper section 30 and the A-pillar upper inner panel 10; the matching surface between the front engine room assembly and the side wall assembly comprises the joint surface of the upper section 30 of the lower inner plate of the A column and the lower section 20 of the lower inner plate of the A column, the joint surface of the upper section 30 of the lower inner plate of the A column and the upper inner plate 10 of the A column, the screw joint surface of the upper section 30 of the lower inner plate of the A column and the upper inner plate 10 of the A column, matching parts and boundaries are complex, matching difficulty is high, and production beat is long.
As shown in fig. 3, in order to improve structural rigidity of the fan heater pressure chamber plate, a connecting bracket 80 is added to the front cabin assembly, and the connecting bracket 80 is screwed 90 with the upper section 30 of the lower inner plate of the a column and the fan heater pressure chamber plate 40 respectively, and the screwing step is completed in the manufacturing process of the front cabin assembly.
As shown in fig. 4 and 5, an embodiment of the present invention discloses a connection structure of a front cabin assembly and a side wall assembly, including a side wall assembly and a front cabin assembly.
The side wall assembly comprises an A column upper inner plate 11 and an A column lower inner plate 21, wherein the A column upper inner plate 11 and the A column lower inner plate 21 are of an up-down block structure; the structural design and boundaries of the A-pillar upper inner plate 11 are the same as those of the prior art, and the A-pillar upper inner plate 11 is welded with the A-pillar lower inner plate 21; the upper A-pillar inner plate 11 and the lower A-pillar inner plate 21 are arranged on the side wall assembly, so that the welding manufacturability characteristics and advantages of the traditional side wall assembly are maintained.
The front cabin assembly comprises a side sealing plate 31, a fan heater pressure chamber plate 41 and a front wall plate 51, wherein the side sealing plate 31 and the A column lower inner plate 21 are of a left-right block structure, and the fan heater pressure chamber plate 41 and the front wall plate 51 are arranged on the side sealing plate 31; the front cabin assembly and the side wall assembly are improved from the traditional upper and lower block structures to the left and right block structures, so that the structure of the A-pillar lower inner plate 21 is optimized, the oversized extension of the A-pillar lower inner plate 21 in the X direction is avoided, and the material utilization rate of the A-pillar lower inner plate 21 is improved; the matching surface between the front engine room assembly and the side wall assembly only comprises the joint surface of the side sealing plate 31 and the side wall assembly, so that the matching surface is simplified, the production beat is shortened, and the manufacturing and the precision control are facilitated.
As shown in fig. 4 and 6, the fan heater pressure chamber plate 41, the side seal plate 31 and the a-pillar lower inner plate 21 are formed into three layers from top to bottom, spot welding is performed between the two layers of the fan heater pressure chamber plate 41 and the side seal plate 31, spot welding is performed between the two layers of the side seal plate 31 and the a-pillar lower inner plate 21, and plug welding 61 and screw connection 71 are performed between the three layers.
Specifically, the upper structure of the fan heater pressure chamber plate 41 is spot-welded with the side sealing plate 31 at the first flanging of the edge of the fan heater pressure chamber plate 41, and the lower structure of the fan heater pressure chamber plate 41 is spot-welded with the side sealing plate 31 at the second flanging of the edge of the fan heater pressure chamber plate 41, so as to realize pre-welding; two plug welds 61 are performed among the three layers of the first flanging, the side sealing plate 31 and the A-pillar lower inner plate 21, and one plug weld 61 is performed among the three layers of the second flanging, the side sealing plate 31 and the A-pillar lower inner plate 21; two screw-connection 71 is made between the second flange, the side seal plate 31 and the a-pillar lower inner panel 21.
By arranging the three plug welds 61 and the two screw joints 71, the whole front cabin assembly and the fan heater pressure chamber plate 41 can be reinforced at the same time, so that the rigidity and the mode of the fan heater pressure chamber plate are obviously improved; compared with the prior art, the plug welding and the screw connection for reinforcing the whole front cabin assembly are consistent in number and different in position, and the connecting bracket 80 for reinforcing the fan heater pressure chamber plate 41 is omitted, so that the material use is reduced, and the production takt is shortened.
As shown in fig. 4 and 7, the side surface of the lower structure of the fan heater pressure chamber plate 41 is connected to the structural section of the front wall plate 51 and welded to the front wall plate 51; the front wall plate 51 is welded to the side seal plate 31 at the upper part of the flange at the edge thereof, and is welded to the a-pillar lower inner panel 21 at the lower part of the flange at the edge thereof.
As shown in fig. 6 and 7, the side wall assembly further includes an a-pillar reinforcing plate 22, and a cavity structure is formed between the a-pillar reinforcing plate 22 and the a-pillar lower inner plate 21; the edge of the side sealing plate 31 is welded with the lower inner plate 21 of the A column, the middle position of the upper part of the side sealing plate 31 is welded with the reinforcing plate 22 of the A column, and the side sealing plate 31 seals the cavity structure.
The embodiment of the invention also discloses a manufacturing method of the connecting structure of the front engine room assembly and the side wall assembly, which is used for manufacturing the connecting structure of the front engine room assembly and the side wall assembly and comprises the following steps: the side sealing plate 31, the fan heater pressure chamber plate 41 and the front wall plate 51 are welded to form a front engine room assembly, and then the side sealing plate 31 is welded to one side of the A-pillar lower inner plate 21, so that the installation between the front engine room assembly and the side wall assembly is completed. The method optimizes the welding process, on one hand, the characteristics of the traditional side wall assembly welding process are maintained, and on the other hand, the matching process between the front engine room assembly and the side wall assembly is simplified
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a connection structure of front engine compartment assembly and side wall assembly which characterized in that: the device comprises a side wall assembly and a front cabin assembly; the side wall assembly comprises an A column upper inner plate and an A column lower inner plate, wherein the A column upper inner plate and the A column lower inner plate are of an up-down block structure; the front engine room assembly comprises a side sealing plate, a fan heater pressure chamber plate and a front wall plate, wherein the side sealing plate and the lower inner plate of the A column are of a left-right block structure, and the fan heater pressure chamber plate and the front wall plate are arranged on the side sealing plate;
the A column upper inner plate is welded with the A column lower inner plate, and the A column upper inner plate and the A column lower inner plate are both arranged on the side wall assembly;
the fan heater pressure chamber plate, the side sealing plate and the A column lower inner plate form three layers from top to bottom, spot welding is carried out between the fan heater pressure chamber plate and the two layers of the side sealing plate, spot welding is carried out between the side sealing plate and the A column lower inner plate, and plug welding and screw connection are carried out between the three layers;
the upper structure of the fan heater pressure chamber plate is in spot welding with the side sealing plate at a first flanging of the edge of the fan heater pressure chamber plate, and the lower structure of the fan heater pressure chamber plate is in spot welding with the side sealing plate at a second flanging of the edge of the fan heater pressure chamber plate;
two plug welds are carried out between the first flanging, the side sealing plate and the A column lower inner plate three layers, one plug weld is carried out between the second flanging, the side sealing plate and the A column lower inner plate three layers, and two screw joints are carried out between the second flanging, the side sealing plate and the A column lower inner plate three layers.
2. The structure for connecting a front nacelle assembly to a side wall assembly according to claim 1 wherein: the side surface of the lower structure of the fan heater pressure chamber plate is connected with the structural section of the front wall plate and welded with the front wall plate; the front wall plate is welded with the side sealing plate at the upper part of the flanging at the edge of the front wall plate, and is welded with the lower inner plate of the column A at the lower part of the flanging at the edge of the front wall plate.
3. The structure for connecting a front nacelle assembly to a side wall assembly according to claim 1 wherein: the side wall assembly further comprises an A column reinforcing plate, and a cavity structure is formed between the A column reinforcing plate and the A column lower inner plate.
4. A front nacelle assembly and side wall assembly attachment structure according to claim 3 wherein: the edge of the side sealing plate is welded with the lower inner plate of the A column, the middle position of the upper part of the side sealing plate is welded with the A column reinforcing plate, and the cavity structure of the side sealing plate is sealed.
5. A method for manufacturing a connection structure of a front cabin assembly and a side wall assembly, for manufacturing a connection structure of a front cabin assembly and a side wall assembly as claimed in any one of claims 1 to 4, comprising the steps of: the side sealing plate, the fan heater pressure chamber plate and the front wall plate are welded to form a front engine room assembly, and then the side sealing plate is welded to one side of the lower inner plate of the A column, so that the installation between the front engine room assembly and the side wall assembly is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211164865.2A CN115416761B (en) | 2022-09-23 | 2022-09-23 | Connecting structure of front engine room assembly and side wall assembly and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211164865.2A CN115416761B (en) | 2022-09-23 | 2022-09-23 | Connecting structure of front engine room assembly and side wall assembly and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN115416761A CN115416761A (en) | 2022-12-02 |
| CN115416761B true CN115416761B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211164865.2A Active CN115416761B (en) | 2022-09-23 | 2022-09-23 | Connecting structure of front engine room assembly and side wall assembly and manufacturing method thereof |
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| CN (1) | CN115416761B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734291A (en) * | 2010-01-04 | 2010-06-16 | 重庆长安汽车股份有限公司 | Vehicle front wallboard with strengthening structure |
| CN106892000A (en) * | 2015-12-21 | 2017-06-27 | 广州汽车集团股份有限公司 | car front wall structure |
| CN108556924A (en) * | 2018-05-16 | 2018-09-21 | 浙江零跑科技有限公司 | A kind of A -pillar structure for improving 40% biasing and touching security performance |
| CN112278086A (en) * | 2020-11-13 | 2021-01-29 | 合肥长安汽车有限公司 | Novel car body front end lap joint structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112660245A (en) * | 2021-01-05 | 2021-04-16 | 广州阿尔特汽车科技有限公司 | Front longitudinal beam structure of vehicle body |
-
2022
- 2022-09-23 CN CN202211164865.2A patent/CN115416761B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734291A (en) * | 2010-01-04 | 2010-06-16 | 重庆长安汽车股份有限公司 | Vehicle front wallboard with strengthening structure |
| CN106892000A (en) * | 2015-12-21 | 2017-06-27 | 广州汽车集团股份有限公司 | car front wall structure |
| CN108556924A (en) * | 2018-05-16 | 2018-09-21 | 浙江零跑科技有限公司 | A kind of A -pillar structure for improving 40% biasing and touching security performance |
| CN112278086A (en) * | 2020-11-13 | 2021-01-29 | 合肥长安汽车有限公司 | Novel car body front end lap joint structure |
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| Publication number | Publication date |
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| CN115416761A (en) | 2022-12-02 |
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