CN115610516A - Regional structure of car automobile body A post and vehicle - Google Patents

Abstract

The invention relates to the technical field of automobile bodies, in particular to an automobile body A column area structure and a vehicle, wherein the automobile body A column area structure comprises an A column lower inner plate, an A column upper inner plate, an A column middle inner plate, a steering support mounting bracket, a fan heater pressure chamber plate and a front wall plate; the middle inner plate of the A column is connected with the upper inner plate of the A column through bolts, the middle inner plate of the A column is connected with the lower inner plate of the A column in a snap fit manner, and the snap fit connection position of the middle inner plate of the A column and the lower inner plate of the A column is positioned at the upper part of the A column area structure of the automobile body. The invention can meet the flexible collinear production of the vehicle type with non-unified A-pillar inner plate flow, and avoid the problem that the welding line side wall falls off in the transmission process after being preassembled; the size precision of the steering support positioning installation point is improved, and the problem that a welding channel cannot be reached due to forward movement of a welding spot at the parting joint of the front wall plate and the front floor assembly of the platform car is solved.

Description

Regional structure of car automobile body A post and vehicle

Technical Field

The invention relates to the technical field of automobile bodies, in particular to an A-column area structure of an automobile body and a vehicle.

Background

With the increase of the use working conditions and the increase of the carrying parts of the automobile, the requirements on the performance of a white automobile body are higher and higher. The node position of the lower part of the A-pillar lower inner plate contributes a great amount to torsional rigidity of a white vehicle body, so that more vehicles extend the lower part of the A-pillar lower inner plate to the lower edge of a floor threshold to be welded with a side wall reinforcing plate and the floor.

To this end, the patent with publication number CN211252778U discloses an a-pillar lower inner panel assembly and an automobile, the a-pillar lower inner panel assembly includes a lower inner panel body and a rigidity compensation structure, an upper end of the lower inner panel body is configured to be connected with a bottom end of the a-pillar, a lower end of the lower inner panel body is configured to be connected with an upper edge of a rocker of the floor assembly, an upper end of the rigidity compensation structure is connected with a lower end of the lower inner panel body, and a lower end of the rigidity structure is configured to be connected with a lower edge of the rocker of the floor assembly. The A-pillar lower inner plate assembly of the technical scheme adopts a split structure, and the lower inner plate body and the rigidity compensation structure are welded in sequence, so that the torsional rigidity of the body-in-white shell is improved by about 5% while the requirements of the floor assembly welding process are met, and the performance target is achieved.

However, because some vehicle-enterprise platformization research and development time is relatively late, the process flow is not uniform, especially in an A-pillar area, the level of an A-pillar inner plate generally includes two situations, namely a side wall assembly and an engine room assembly, but along with the fact that the flexibility of a welding production line is higher and higher, the platformization vehicle type and the traditional vehicle type require more and more collinear production situations due to the fact that the A-pillar inner plate flow is not uniform, and the A-pillar assembly does not have the following problems in the actual application process: 1. the structure cannot adapt to flexible collinear production of the vehicle type with non-uniform A-pillar inner plate flow, a new process is needed, tracks of other vehicle types on flexibility are taught again, the reconstruction cost is high, and the debugging time period is long; 2. after welding thread side wall pre-installation, side wall assembly upper portion can turn up because of certain proportion of gravity reason and drop in the transmission process, causes the production line to stop the line, influences production line efficiency. 3. The steering support mounting bracket on the A-column inner plate assembly is multi-level and Y-direction is not adjustable, and the steering support positioning hole on the bracket directly influences the gap between the steering support and the door trim panel, so that the gap is high in sensitivity and the delicate engineering sensory quality is influenced. 4. In order to adapt to the change of different wheel bases, the parting of the front wall plate and the front floor assembly is closer to the front, and the welding channel of welding spots at the parting position can be influenced by the existing A-column inner plate assembly. 5. The joints of the upper ends of the A-column inner plates and other inner plates are not easy to control due to lap gaps, the arc welding quality is difficult to guarantee, and the labor range of arc welding operators is poor.

Disclosure of Invention

In view of the above, the invention aims to provide an A-pillar area structure of an automobile body and an automobile, which can meet the flexible collinear production of an A-pillar inner plate with a non-unified automobile type flow and avoid the problem that a welding line side wall falls off in the transmission process after being preassembled; the size precision of the steering support positioning installation point is improved, and the problem that a welding channel cannot be reached due to forward movement of a welding spot at the parting position of the platform car type front wall plate and the front floor assembly is solved.

The invention solves the technical problems by the following technical means:

an A-column area structure of an automobile body comprises an A-column lower inner plate, an A-column upper inner plate, an A-column middle inner plate, a steering support mounting bracket, a fan heater pressure chamber plate and a front wall plate, wherein the steering support mounting bracket is fixedly connected with the A-column middle inner plate; the column A middle inner plate is connected with the column A upper inner plate through bolts, and the column A middle inner plate is connected with the column A lower inner plate in a snap fit mode.

Furthermore, the snap-fit connection position of the inner plate in the column A and the lower inner plate of the column A is positioned at the upper part of the A-column area structure of the automobile body. According to the technical scheme, the inner plate is integrated on the cabin assembly along with the front wall plate in the A column, the lower inner plate of the A column is integrated on the side wall sub-assembly to adapt to welding flexible lines of different technological processes of an upper vehicle body and a lower vehicle body to which the inner plate of the A column belongs, the rear process of the inner plate in the A column is assembled and welded, and then the inner plate is positioned, so that the requirement of a welding level is improved, and the requirement of a channel during welding of welding spots at the parting of the front wall plate of a platform vehicle type is met.

Furthermore, spot welding sealant is arranged at the fixed connection part of the inner plate in the column A and the warm air blower pressure chamber plate and the front wall plate. According to the technical scheme, the spot welding sealant is arranged at the fixed connection position of the inner plate in the column A and the pressure chamber plate and the front wall plate of the fan heater, so that the sealing effect can be achieved, and water leakage is prevented.

Furthermore, a triangular boss is arranged on the inner plate in the A column. This technical scheme through the setting of triangle-shaped boss, can compensate the big bad problem of sealing that brings of electric fan heater pressure chamber board breach when improving interior board intensity of A post, such structural design, simple structure, the shaping is convenient, and the practicality is strong.

Furthermore, the inner panel includes the interior plate spare in the A post, turn to and support installing support Y to installing on the interior plate spare in the A post, turn to and support the installing support including turning to and supporting the spacer piece spare and turning to and supporting the subassembly, turn to and support the spacer piece spare and turn to and be provided with on the support subassembly and turn to and support the locating hole, turn to and support the spacer piece spare and turn to and support subassembly X to being connected. In the technical scheme, the steering support mounting bracket is connected with the inner plate piece in the column A in the Y direction, the steering support positioning hole can be adjusted in the X/Z direction by utilizing the welding tool, the steering support positioning piece is connected with the steering support sub-assembly in the X direction, and the steering support positioning hole can be adjusted in the Y/Z direction by utilizing the welding tool.

Furthermore, the upper part of the inner plate in the A column is provided with a Z-direction flanging. The Z-direction flanging of the technical scheme can adopt a special tolerance design, and the design can optimize the Z-direction dimensional tolerance accumulation when the inner plate and the peripheral parts are welded in the A column, and finally realize the dimensional accuracy of the steering support positioning hole of the body-in-white level.

Furthermore, the upper portion of the lower inner plate of the column A is provided with an L-shaped notch, the lower inner plate of the column A located at the L-shaped notch is provided with a hasp, and the lower inner plates of the columns A on the two sides of the hasp are provided with process notches. According to the technical scheme, the L-shaped notch is formed in the upper portion of the lower inner plate of the A column, so that the lower inner plate of the A column and the middle inner plate of the A column can be avoided in the folding process, the manufacturing difficulty of the lower inner plate of the A column can be reduced, the difficulty of a welding channel is avoided, and unnecessary connection process design is avoided; the hasp is arranged at the upper part of the lower inner plate of the column A, the process notches are arranged on the two sides of the hasp, when the side wall assembly and the lower vehicle body are preassembled, the hasp is attached to the inner plate of the column A in an automatic rolling or manual upward knocking mode, the problem that the upper part of the side wall assembly is unconstrained during preassembling is solved, the problem that a welding line drops in the transmission process after the side wall assembly is preassembled is solved, and the production efficiency is improved.

Furthermore, first screw hole and second screw hole have been seted up on the inner panel on the A post, set up the first via hole that matches with first screw hole on the inner panel in the A post to and the second via hole that matches with the second screw hole, threaded connection has first bolt on first screw hole and the first via hole, threaded connection has the second bolt on second screw hole and the second via hole. The structural design of this technical scheme so, the poor problem of human-machine engineering nature that can avoid inner panel and the interior plate connection on the A post in the A post, promote operating efficiency.

The invention also discloses a vehicle which comprises the automobile body A column area structure.

The invention discloses an A column area structure of an automobile body and an automobile, which have the following advantages:

1. the joint of the inner plate in the column A and the lower inner plate of the column A is positioned at the upper part of the column A area structure of the automobile body, and the parting structural form solves the problem of no welding channel caused by too close front parting of the front wallboard and the front floor of the platform automobile, and can realize flexible collinear production of vehicles with non-uniform column A inner plate flow at low cost and high efficiency.

2. According to the invention, the L-shaped notch is formed in the upper part of the lower inner plate of the A column, the hasp is arranged on the lower inner plate of the A column positioned at the L-shaped notch, and the problem of unstable preassembly of the middle upper part of the side wall can be solved by adding the structural form of the hasp on the upper part of the lower inner plate of the A column, so that the production efficiency is improved.

3. According to the invention, the steering support mounting bracket is mounted on the inner plate piece in the column A in the Y direction, the steering support positioning piece and the steering support sub-assembly are provided with the steering support positioning hole, the steering support positioning piece is connected with the steering support sub-assembly in the X direction, so that the steering support positioning hole is adjustable in three directions, the welding level is improved in a mode of weak pre-curing and positioning the inner plate in the column A, and the dimensional accuracy of the steering support positioning hole in the white vehicle body level is ensured.

4. According to the invention, the bolt connection mode of the inner plate on the column A and the inner plate in the column A is realized through the first bolt and the second bolt, so that the problem of poor man-machine engineering property of connection between the inner plate in the column A and the inner plate on the column A can be avoided, and the operation efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of an A-pillar area structure of an automobile body according to the present invention;

FIG. 2 is a schematic view of a process structure of an A-pillar area structure of an automobile body according to the present invention;

FIG. 3 is a schematic view illustrating the connection between the process structure and the front floor of the A-pillar area structure of the vehicle body according to the present invention;

FIG. 4 is a schematic view of the connection of the process structure and the side wall sub-assembly of the A-pillar area structure of the automobile body of the present invention;

FIG. 5 is a partial view of the lap joint area of the upper portion of the lower inner panel of the A-pillar of the automobile body according to the present invention;

FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

fig. 7 is a cross-sectional view taken at B-B in fig. 1.

The main element symbols are as follows:

the structure comprises an A-pillar middle inner plate 1, a first bolt 11, a second bolt 12, an A-pillar middle inner plate piece 13, a triangular boss 14, a Z-direction flanging 15, a steering support mounting bracket 2, a steering support positioning piece 21, a steering support sub-assembly 22, a steering support positioning hole 211, an A-pillar lower inner plate 3, a buckle 31, an L-shaped notch 32, an A-pillar upper inner plate 4, a fan heater pressure chamber plate 5, a front wall plate 6, a front floor plate 7 and a side wall sub-assembly 8.

Detailed Description

The invention will be described in detail below with reference to the following figures and specific examples:

the following description is given for illustrative embodiments of the invention with reference to specific examples, and it is to be understood that the invention is not limited to the details of the embodiments disclosed herein. It should be noted that the drawings provided in the following embodiments are for illustrative purposes only, are schematic drawings rather than actual drawings, and should not be construed as limiting the present invention, and in order to better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood 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", "back", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Examples 1,

The embodiment is an A-column area structure of an automobile body, and as shown in figures 1 and 2, the A-column area structure comprises an A-column middle inner plate 1, a steering support mounting bracket 2, a fan heater pressure chamber plate 5 and a front wall plate 6, wherein the A-column middle inner plate 1, the fan heater pressure chamber plate 5 and the front wall plate 6 are firstly fixed in advance by spot welding for weak connection, spot welding sealant is used for realizing sealing among the A-column middle inner plate 1, the fan heater pressure chamber plate 5 and the front wall plate 6, water leakage is prevented, and the A-column middle inner plate 1 is provided with a triangular boss 14, so that the strength of the A-column middle inner plate can be improved, and the problem of poor sealing caused by a large gap of the fan heater pressure chamber plate is solved. The column A middle inner plate 1 comprises a column A middle inner plate piece 13, the steering support mounting support 2 is connected with the column A middle inner plate piece 13 through Y-direction spot welding, the X/Z direction of the steering support positioning hole 211 can be adjusted through a welding tool, the steering support mounting support 2 comprises a steering support positioning piece 21 and a steering support sub-assembly 22, as shown in fig. 6, the steering support positioning piece 21 and the steering support sub-assembly 22 are connected in a pure X direction, the Y/Z direction of the steering support positioning hole 211 can be adjusted through the welding tool, a Z-direction flanging 15 is integrally formed on the upper portion of the column A middle inner plate 1, and the Z-direction flanging 15 of the embodiment is designed through special tolerance, so that the Z-direction size tolerance accumulation of the column A middle inner plate and peripheral parts during welding can be optimized, and finally the size precision of the white vehicle body level steering support positioning hole 211 is achieved.

As shown in figure 1, the parting of the inner plate 1 in the column A and the inner plate 3 under the column A is arranged at the upper part of the area, the inner plate 1 in the column A is firstly connected with a pressure chamber plate 5 and a front wall plate 6 of a fan heater in a spot welding manner as shown in figure 2, the inner plate 3 under the column A is firstly connected with a side wall assembly 8 in a spot welding manner as shown in figure 4, and the structure and the design of the process flow can adapt to the welding flexible wires of different process flows of an upper vehicle body and a lower vehicle body to which the inner plate of the column A belongs, and simultaneously can solve the problem that most welding point channels are shielded when the parting of the front wall plate 6 and the front floor plate 7 is designed to be close to the front as shown in figure 3 because the platform universality of parts of a platform vehicle type is improved as much as possible.

As shown in fig. 5, an L-shaped notch 32 is designed at the upper left portion of the a-pillar lower inner panel 3, so as to facilitate the avoidance of the folding process between the a-pillar lower inner panel 3 and the a-pillar middle inner panel 1. Due to the structural arrangement, the manufacturing difficulty of the lower inner plate 3 of the A column can be reduced, the difficulty of a welding channel is avoided, and unnecessary connection process design is avoided. The middle of the upper portion of the lower inner plate 3 of the column A is integrally formed with the hasp 31, the two sides of the hasp 31 are provided with process notches, when the side wall assembly and the lower vehicle body are preassembled, the hasp 31 is attached to the inner plate 1 in the column A in an automatic rolling or manual upward knocking mode, the unrestrained difficult problem of the upper portion in the preassembling process of the side wall assembly is solved, the problem that the transmission process drops after the side wall assembly is preassembled is solved, and the production efficiency is improved.

As shown in fig. 7, a first threaded hole and a second threaded hole are formed in the inner plate 4 on the column a, a first through hole matched with the first threaded hole and a second through hole matched with the second threaded hole are formed in the inner plate 1 in the column a, a first bolt 11 is in threaded connection with the first through hole in the first threaded hole, and a second bolt 12 is in threaded connection with the second through hole in the second threaded hole and the second through hole. Through such structural design, can avoid the poor problem of the human-machine engineering nature that inner panel 1 and A post upper inner panel 4 are connected in the A post, promote operating efficiency.

Examples 2,

The present embodiment is a vehicle including the automotive body a-pillar region structure in embodiment 1. The joint of the inner plate 1 and the lower inner plate 3 of the column A of the vehicle is positioned at the upper part of the regional structure of the column A of the vehicle body, so that the problem of no welding channel caused by the fact that the parting of the front wallboard 6 and the front floor 7 of the platform vehicle type is too close to the front is effectively solved, and the flexible collinear production of the non-unified vehicle type of the column A inner plate flow can be realized with low cost and high efficiency. In addition, the upper portion of the A-pillar lower inner plate 3 of the vehicle is provided with an L-shaped notch 32, the A-pillar lower inner plate 3 located at the L-shaped notch 32 is provided with a buckle 31, and the structural form of the buckle 31 on the upper portion of the A-pillar lower inner plate 3 is additionally arranged, so that the problem that the middle upper portion of the side wall is unstable in pre-installation can be solved, and the production efficiency of the vehicle is improved. Furthermore, according to the vehicle, the steering support mounting bracket 2Y direction is mounted on the inner plate 1 piece in the column A, the steering support positioning piece 21 and the steering support sub-assembly 22 are provided with the steering support positioning hole 211, the steering support positioning piece 21 is connected with the steering support sub-assembly 22X direction, three directions of the steering support positioning hole 211 can be adjusted, the welding level is improved in a mode that the inner plate 1 in the column A is firstly subjected to weak pre-curing and then is positioned, and the size precision of the steering support positioning hole 211 in the white vehicle body level is ensured. Finally, the vehicle of the embodiment realizes the bolt connection mode of the inner plate 4 on the column A and the inner plate 1 in the column A through the first bolt 11 and the second bolt 12, so that the problem of poor ergonomics of the connection of the inner plate 1 in the column A and the inner plate 4 on the column A can be avoided, and the operation efficiency is improved.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the present invention, which is defined by the claims appended hereto. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims (9)

1. The utility model provides an automobile body A post regional structure, includes inner panel under the A post, its characterized in that: the steering support mounting bracket is fixedly connected with the column A middle inner plate, and the middle part of the column A middle inner plate is fixedly connected with the fan heater pressure chamber plate and the front wall plate; the column A middle inner plate is connected with the column A upper inner plate through bolts, and the column A middle inner plate is connected with the column A lower inner plate in a snap-fit manner.

2. An a-pillar area structure of an automobile body according to claim 1, characterized in that: and the snap-fit connection part of the middle inner plate of the A column and the lower inner plate of the A column is positioned at the upper part of the A column area structure of the automobile body.

3. An a-pillar area structure of an automobile body according to claim 2, wherein: spot welding sealant is arranged at the fixed connection part of the inner plate in the column A and the warm air blower pressure chamber plate and the front wall plate.

4. A pillar a area structure of an automobile body according to claim 3, wherein: and a triangular boss is arranged on the inner plate in the column A.

5. An automobile body a-pillar region structure according to claim 4, characterized in that: the inner panel includes that A post well inner panel spare in the A post, turn to and support installing support Y to installing in A post on the inner panel spare, turn to and support the installing support including turning to and supporting the spacer piece and turning to and support the subassembly, turn to and support the spacer piece and turn to and be provided with on the support subassembly and turn to and support the locating hole, turn to and support the spacer piece and turn to and support subassembly X to being connected.

6. An a-pillar region structure of an automobile body according to claim 5, characterized in that: and a Z-direction flanging is arranged at the upper part of the inner plate in the column A.

7. An a-pillar area structure of an automobile body according to claim 6, wherein: the upper portion of the lower inner plate of the column A is provided with an L-shaped notch, the lower inner plate of the column A, which is located at the L-shaped notch, is provided with a hasp, and the lower inner plates of the columns A on the two sides of the hasp are provided with process notches.

8. An a-pillar area structure of an automobile body according to claim 7, characterized in that: first screw hole and second screw hole have been seted up on the inner panel on the A post, set up the first via hole that matches with first screw hole on the inner panel in the A post to and the second via hole that matches with the second screw hole, threaded connection has first bolt on first screw hole and the first via hole, threaded connection has the second bolt on second screw hole and the second via hole.

9. A vehicle, characterized in that: the vehicle includes the automobile body a-pillar region structure of claim 1.

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