CN113602366A - Connecting structure between vehicle roof and vehicle body - Google Patents
Connecting structure between vehicle roof and vehicle body Download PDFInfo
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- CN113602366A CN113602366A CN202111010349.XA CN202111010349A CN113602366A CN 113602366 A CN113602366 A CN 113602366A CN 202111010349 A CN202111010349 A CN 202111010349A CN 113602366 A CN113602366 A CN 113602366A
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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
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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
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Abstract
The invention discloses a connecting structure between a vehicle roof and a vehicle body, which relates to the field of vehicle production and manufacturing and comprises a top cover front beam assembly, a top cover and side wall assemblies arranged on two sides of the vehicle body, wherein the top cover front beam assembly comprises a top cover front beam inner plate and a top cover front beam outer plate covering the top cover front beam inner plate, and the top cover front beam outer plate and the top cover front beam inner plate are welded; the side wall assembly comprises a side wall outer plate, a pillar reinforcing plate, a pillar inner plate and a beam connecting plate which are sequentially stacked from top right to bottom, wherein the beam connecting plate is positioned on the inner side of the vehicle body and extends out of the vehicle interior; the top cover comprises a top cover outer plate covering the top cover front cross beam assembly, and the top cover outer plate, the top cover front cross beam assembly and the side wall assembly are all welded. The invention can effectively improve the installation strength and the installation precision of the structure.
Description
Technical Field
The invention relates to the field of vehicle production and manufacturing, in particular to a connecting structure between a vehicle roof and a vehicle body.
Background
The pressure resistance of the car roof is an important index of the safety performance of the whole car, wherein the roof beam is an important pressure transmission channel. At present, a cover beam mainly has two section structures of a U-shaped structure and a W-shaped structure, and two ends of a top cover front beam are respectively connected with a left side wall assembly and a right side wall assembly. In order to further improve the rigidity of the top cover beam, particularly the rigidity of the top cover front beam, in recent years, the top cover front beam has a structural form of combining an inner plate and an outer plate, the inner plate and the outer plate are firstly welded to form a closed cavity, and then the closed cavity is connected with a side wall assembly.
The beam connecting plate is a part welded in the side wall assembly, is positioned at the tail end of the side wall assembly and is of a cantilever structure. This region often forms top cap crossbeam planking, top cap crossbeam inner panel, top cap, the laminating of crossbeam connecting plate four-layer board spare, nevertheless current spot welding technology can't carry out effective welding to four layers of steel sheet to cause the crossbeam connecting plate to lack the effective connection structure of Z to. Simultaneously if the Z position of crossbeam connecting plate exceeds standard, under lever principle's effect, can cause the top cap crossbeam about both ends Z position enlarge doubly to top cap crossbeam and crossbeam connecting plate's laminating face of weld width 20mm, top cap crossbeam length 1200mm for the example, if the Z position of binding face appears 0.5mm undulant, can arouse top cap middle part position to produce 15 mm's Z to the deviation, thereby influence the gesture about of top cap front beam. On top cap front beam, generally be equipped with left and right sunshading board, some motorcycle types still are equipped with electrical components such as skylight control panel, multimedia control panel, rainfall sensor, supplementary driving sensing, have higher requirement to the mounting hole position accuracy on the top cap front beam.
Meanwhile, the roof panel, which is an important outer covering of the vehicle body, needs to be attached to the vehicle body frame by welding. The welding structure has a traditional structure that spot welding is adopted all around, and also has a mixed structure of front and back side spot welding and left and right side laser welding, and no matter what type of welding structure, the top cover only has connection relation with the vehicle body framework through four welding surfaces in front, back, left and right. Because the top cover of the automobile, particularly a passenger automobile, has large curvature, large area and limited rigidity, the stable position relation can be formed only under the common supporting action of the front cross beam and the rear cross beam of the top cover, a plurality of middle cross beams and left and right side walls. The front and rear cross beams of the top cover, particularly the front cross beam of the top cover, have larger influence on the Z-direction size precision of the top cover, and the front part of the top cover is easier to be perceived by an observer.
At present, to the solution of being connected between automobile body side wall and top cap front beam, all establish the spare part in the side wall assembly for all setting up A post reinforcing plate and A post upper inner panel, form the overlap joint of top cap front beam jointly, top cap front beam and A post upper inner panel all with A post reinforcing plate between all have the overlap joint relation. For the scheme, because the top cover front beam is formed by a single stamping part, three-layer plate welding can be formed among the top cover front beam, the A column upper inner plate and the A column reinforcing plate, but when the top cover front beam is formed by the inner plate and the outer plate, a three-layer plate welding structure cannot be formed, and the problem of the Z-direction connection precision of the top cover front beam and the side wall cannot be solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a connecting structure between a vehicle roof and a vehicle body, which can effectively improve the mounting strength and mounting precision of the structure.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the top cover front cross beam assembly comprises a top cover front cross beam inner plate and a top cover front cross beam outer plate covering the top cover front cross beam inner plate, and the top cover front cross beam outer plate and the top cover front cross beam inner plate are welded;
the side wall assembly is arranged on each of two sides of the car body and comprises a side wall outer plate, a pillar reinforcing plate, a pillar inner plate and a beam connecting plate which are sequentially stacked from top to bottom, and the beam connecting plate is positioned on the inner side of the car body and extends towards the inside of the car;
the top cover comprises a top cover outer plate covering the top cover front cross beam assembly, and the top cover outer plate, the top cover front cross beam assembly and the side wall assembly are all welded;
one end of the top cover front cross beam assembly is connected with a support reinforcing plate and a cross beam connecting plate in a side wall assembly on one side of the vehicle body, and the other end of the top cover front cross beam assembly is connected with a support reinforcing plate and a cross beam connecting plate in a side wall assembly on the other side of the vehicle body.
On the basis of the technical proposal, the device comprises a shell,
the peripheries and the middle parts of the opposite surfaces between the top cover front cross beam outer plate and the top cover front cross beam inner plate are provided with welding binding surfaces;
positioning holes are formed in two ends of the top cover front cross beam inner plate and respectively comprise a first positioning hole and a second positioning hole, and the normal directions of the first positioning hole and the second positioning hole are parallel to the vertical direction of the vehicle body;
the length of the top cover front cross beam outer plate is greater than that of the top cover front cross beam inner plate, and two ends of the top cover front cross beam outer plate extend out of the top cover front cross beam inner plate.
On the basis of the technical proposal, the device comprises a shell,
the front end of the inner plate of the top cover front beam is an inner plate front welding surface, and the rear end of the inner plate of the top cover front beam is an inner plate rear welding surface;
the two ends of the inner plate front welding face are provided with first steps, and the height of each first step is equal to the thickness of the outer plate of the top cover front cross beam.
On the basis of the technical proposal, the device comprises a shell,
hooks are arranged at two ends of the top cover front cross beam outer plate and face the top cover front cross beam inner plate;
holes for welding tongs to pass through when the top cover front cross beam assembly and the side wall assembly are welded are formed in the two ends of the top cover front cross beam outer plate;
the front end of the outer plate of the front cross beam of the top cover is an outer plate front welding surface, and the rear end of the outer plate of the front cross beam of the top cover is an outer plate rear welding surface;
two ends of the front welding surface of the outer plate are provided with U-shaped notches, and the positions of the notches correspond to the position of a first step on the front welding surface of the inner plate;
the width of the notch is greater than that of the first step, and the length of the notch is greater than that of the first step;
the first step is attached to and welded with the outer plate of the front cross beam of the top cover, the front welding face of the outer plate is attached to and welded with the front welding face of the inner plate, and the rear welding face of the outer plate is attached to and welded with the rear welding face of the inner plate.
On the basis of the technical proposal, the device comprises a shell,
the outer side plate is positioned at the outermost side, and the cross beam connecting plate is positioned at the innermost side;
a side wall notch is formed in the inner side of the side wall outer plate, a second step is arranged on the upper surface of the rear end of the cross beam connecting plate, and the height of the second step is the same as that of the first step;
a welding tongs through hole is formed in the beam connecting plate, and a beam pre-hanging hole is formed in one end, close to the interior of the vehicle, of the column reinforcing plate;
the front end of the beam connecting plate is a front welding surface of the beam connecting plate, and the rear end of the beam connecting plate is a rear welding surface of the beam connecting plate;
the top cover front beam outer plate is provided with a hook, and the hook is positioned in the beam pre-hanging hole.
On the basis of the technical proposal, the device comprises a shell,
a plurality of rows of welding spots for welding with the pillar inner plates are arranged on the upper surface of the beam connecting plate along the longitudinal direction of the vehicle body;
welding spots for welding with the inner plate of the pillar are arranged on the front welding surface of the beam connecting plate and the rear welding surface of the beam connecting plate, and the welding spots are close to the edge of the inner plate of the pillar;
and welding spots for welding the beam connecting plate, the pillar inner plate and the pillar reinforcing plate are arranged on the inner side of the beam connecting plate.
On the basis of the technical scheme, welding spots for welding with the inner plate of the pillar are arranged on the rear welding surface of the beam connecting plate, and the positions of the welding spots correspond to the positions of the notches.
On the basis of the technical proposal, the device comprises a shell,
welding spots for welding the beam connecting plate, the top cover front beam inner plate and the top cover front beam outer plate are arranged on the inner plate front welding surface and the inner plate rear welding surface;
and the top cover front cross beam inner plate is provided with welding spots for welding the top cover front cross beam inner plate and the top cover front cross beam outer plate.
On the basis of the technical proposal, the device comprises a shell,
the rear welding surface of the beam connecting plate is provided with a welding spot for welding the beam connecting plate, the pillar reinforcing plate and the top cover front beam outer plate;
and the pillar reinforcing plate is provided with welding spots for welding the pillar reinforcing plate, the top cover front cross beam inner plate and the top cover front cross beam outer plate.
On the basis of the technical scheme, the front side of the top cover outer plate is a front welding surface of the top cover outer plate, and the front welding surface of the top cover outer plate is positioned above the front welding surface of the outer plate.
Compared with the prior art, the invention has the advantages that: through setting up top cap front beam inner panel and covering the top cap front beam planking on top cap front beam inner panel, and welding sets up between top cap front beam planking and the top cap front beam inner panel, thereby form the cavity that has the closed cross-section between top cap front beam planking and top cap front beam inner panel, effectively promote the torsional rigidity and the roof compressive property of automobile body, and simultaneously, the crossbeam connecting plate in the side wall assembly and other parts in the side wall assembly except having the connection of automobile body longitudinal direction, still have reliable connection of automobile body vertical direction, thereby for top cap front beam assembly provide reliable installation accuracy in the automobile body vertical direction, and top cap front beam assembly, side wall assembly and top cap planking three are at the in-process of connecting, can use the connection between the multilayer inter-plate, joint strength is reliable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a connecting structure in the embodiment of the invention taken in the lateral direction of a vehicle body;
FIG. 2 is a top view of a front cross member assembly of the top cover in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an inner panel of a front cross member of the roof in the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an outer plate of a front cross member of a roof cover according to an embodiment of the present invention;
FIG. 5 is an exploded view of a side panel assembly according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a beam connecting plate according to an embodiment of the present invention;
FIG. 7 is a schematic view of a welding spot on the side wall assembly according to an embodiment of the present invention;
FIG. 8 is a schematic view of the connection between the inner panel of the front cross member of the top cover and the side wall assembly in the embodiment of the present invention;
FIG. 9 is a schematic view of the connection between the outer cover panel and the side panel assembly according to the embodiment of the present invention;
FIG. 10 is a schematic view of the welding between the front cross member assembly of the top cover and the outer plate of the top cover according to the embodiment of the present invention.
In the figure: 1-side outer panel, 101-side notch, 2-pillar reinforcement panel, 202-beam pre-hanging hole, 3-pillar inner panel, 4-beam connection panel, 402-beam connection panel front weld face, 403-beam connection panel rear weld face, 404-welding tongs through hole, 405-second step, 5-roof front beam inner panel, 501-first positioning hole, 502-second positioning hole, 503-inner panel front weld face, 504-inner panel rear weld face, 505-first step, 6-roof front beam outer panel, 601-hole, 602-hook, 603-outer panel front weld face, 604-outer panel rear weld face, 605-notch, 7-roof outer panel, 701-roof front weld face.
Detailed Description
The embodiment of the invention provides a connecting structure between a roof and a car body, a cavity with a closed cross section is formed between a top cover front beam outer plate 6 and the top cover front beam inner plate 5 by arranging a top cover front beam inner plate 5 and a top cover front beam outer plate 6 covered on the top cover front beam inner plate 5 and welding the top cover front beam outer plate 6 and the top cover front beam inner plate 5, the torsional rigidity and the roof pressure resistance of the car body are effectively improved, meanwhile, a beam connecting plate 4 in a side wall assembly and other parts in the side wall assembly are reliably connected in the vertical direction of the car body besides the connection in the longitudinal direction of the car body, so that the top cover front beam assembly is reliably installed in the vertical direction of the car body, and the top cover front beam assembly, the side wall assembly and the top cover outer plate 7 can be connected by spot welding among a plurality of layers of plates in the connecting process, the connection strength is reliable.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
Referring to fig. 1, the connection structure between a vehicle roof and a vehicle body according to an embodiment of the present invention includes a top cover front beam assembly, a top cover, and side wall assemblies disposed on both sides of the vehicle body, where it is to be noted that the top cover front beam assembly includes a top cover front beam inner panel 5 and a top cover front beam outer panel 6 covering the top cover front beam inner panel 5, and the top cover front beam outer panel 6 and the top cover front beam inner panel 5 are welded together. The top cover front beam inner plate 5 and the top cover front beam outer plate 6 are attached through attaching surfaces of each other, and then the top cover front beam assembly is formed through welding.
The side wall assembly comprises a side wall outer plate 1, a pillar reinforcing plate 2, a pillar inner plate 3 and a beam connecting plate 4 which are sequentially stacked from top right to bottom, wherein the beam connecting plate 4 is positioned on the inner side of the vehicle body and extends out of the vehicle. The top cover comprises a top cover outer plate 7 covering the top cover front cross beam assembly, and the top cover outer plate 7 is welded with the top cover front cross beam assembly and the side wall assembly. One end of the top cover front beam assembly is connected with the pillar reinforcing plate 2 and the beam connecting plate 4 in the side wall assembly on one side of the vehicle body, and the other end of the top cover front beam assembly is connected with the pillar reinforcing plate 2 and the beam connecting plate 4 in the side wall assembly on the other side of the vehicle body. In a welding workshop, two ends of the top cover front beam assembly are arranged from bottom to top and welded on the side wall assembly, and the top cover outer plate 7 is arranged from top to bottom and welded on the top cover front beam assembly and the side wall assembly.
For the top cover front beam assembly, referring to fig. 2, the peripheries and the middle of the opposite surfaces between the top cover front beam outer plate 6 and the top cover front beam inner plate 5 are provided with welding binding surfaces. Positioning holes 601 are formed in two ends of the top cover front cross beam inner plate 5 and are respectively a first positioning hole 501 and a second positioning hole 502, normal directions of the first positioning hole 501 and the second positioning hole 502 are parallel to the vertical direction of a vehicle body, specifically, the first positioning hole 501 is a round hole 601, the second positioning hole 502 is an oblong hole 601, normal lines of the first positioning hole 501 and the second positioning hole 502 are parallel to each other, the normal lines of the first positioning hole 501 and the second positioning hole 502 are parallel to the Z axis of the vehicle body, and a straight line where a long axis of the second positioning hole 502 is located passes through the circle center of the first positioning hole 501. The length of the top cover front beam outer plate 6 is greater than that of the top cover front beam inner plate 5, and two ends of the top cover front beam outer plate 6 extend out of the top cover front beam inner plate 5.
Referring to fig. 3, the front end of the roof front rail inner panel 5 is an inner panel front weld surface 503, and the rear end of the roof front rail inner panel 5 is an inner panel rear weld surface 504. The two ends of the inner plate front welding surface 503 are both provided with a first step 505, and the height of the first step 505 is the same as the thickness of the top cover front beam outer plate 6.
Referring to fig. 4, hooks 602 are provided at both ends of the roof front rail outer panel 6, and the hooks 602 face the roof front rail inner panel 5. The two ends of the roof front cross beam outer plate 6 are provided with welding spots for performing Z-direction welding with the roof front cross beam inner plate 5, and it should be noted that the Z-direction welding in the embodiment of the present invention is not strictly perpendicular to the horizontal coordinate direction of the vehicle body, but the main direction is perpendicular to the horizontal coordinate direction of the vehicle body. The number of welding spots between the top cover front beam outer plate 6 and the top cover front beam inner plate 5 can be dynamically adjusted according to the size of a fit area between the top cover front beam outer plate 6 and the top cover front beam inner plate 5.
The top cover front beam outer plate 6 and the top cover front beam inner plate 5 are in relative relation, the top cover front beam outer plate 6 covers the top cover front beam inner plate 5, and the length of the top cover front beam outer plate 6 is larger than that of the top cover front beam inner plate 5, therefore, the hooks 602 on the top cover front beam outer plate 6 can avoid the edges of the two ends of the top cover front beam inner plate 5, so that the side wall assembly can be matched.
The front end of the top cover front cross beam outer plate 6 is an outer plate front welding surface 603, and the rear end of the top cover front cross beam outer plate 6 is an outer plate rear welding surface 604. Both ends of the front welding surface 603 of the outer plate are provided with U-shaped notches 605, and the positions of the notches 605 correspond to the positions of the first steps 505 on the front welding surface 503 of the inner plate. The width of the notch 605 is greater than the width of the first step 505, and the length of the notch 605 is greater than the length of the first step 505. Specifically, the height of the first step 505 is the same as the thickness of the roof front beam outer panel 6, so that when the roof front beam outer panel 6 is attached to the roof front beam inner panel 5, the main attachment relationship is formed by the roof front beam outer panel 6 and the roof front beam inner panel 5, but at the position of the notch 605, the first step 505 is attached to the roof front beam outer panel 6 and has a welding relationship.
The first step 505 is bonded and welded to the roof front cross member outer panel 6, the outer panel front weld face 603 is bonded and welded to the inner panel front weld face 503, and the outer panel rear weld face 604 is bonded and welded to the inner panel rear weld face 504.
Referring to fig. 5, of the side wall outer plate 1, the pillar reinforcing plate 2, the pillar inner plate 3 and the beam connecting plate 4, the side wall outer plate 1 is located on the outermost side, the beam connecting plate 4 is located on the innermost side, and the side wall outer plate 1, the pillar reinforcing plate 2, the pillar inner plate 3 and the beam connecting plate 4 are in a step-shaped connection relationship. The side wall outer plate 1, the pillar reinforcing plate 2, the pillar inner plate 3 and the beam connecting plate 4 are made of steel plates or aluminum plate stamping parts so as to improve the material utilization rate and reduce the weight and the cost of the vehicle body. And the edges of the side wall outer plate 1, the pillar reinforcing plate 2, the pillar inner plate 3 and the beam connecting plate 4 are as flat as possible.
The inner side of the side wall outer plate 1 is provided with a side wall notch 101, the upper surface of the rear end of the cross beam connecting plate 4 is provided with a second step 405, and the height of the second step 405 is the same as that of the first step 505. The front end of the beam connecting plate 4 is a beam connecting plate front welding surface 402, and the rear end of the beam connecting plate 4 is a beam connecting plate rear welding surface 403. The beam connecting plate 4 is provided with a welding tongs through hole 404, and one end of the pillar reinforcing plate 2 close to the inside of the vehicle is provided with a beam pre-hanging hole 202. The beam pre-hanging hole 202 is arranged on the pillar reinforcing plate 2, and the hook 602 on the top cover front beam outer plate 6 is positioned in the beam pre-hanging hole 202.
Referring to fig. 6, the upper surface of the cross member connecting plate 4 is provided with a plurality of rows of weld spots for welding with the pillar inner panels 3 in the longitudinal direction of the vehicle body. In fig. 6, Y34 represents a welding spot welded between the upper surface of the beam connecting plate 4 and the pillar inner panel 3, and the welding spot may be a single-row welding spot or a multi-row welding spot, and when the welding spots are multi-row welding spots, the number of rows of welding spots is preferably 2-3 rows, so as to effectively ensure the connection strength between the beam connecting plate 4 and the pillar inner panel 3.
The beam connecting plate front welding surface 402 and the beam connecting plate rear welding surface 403 are provided with welding spots for welding with the pillar inner panel 3, and the welding spots are close to the edge of the pillar inner panel 3, as shown in Z24 in fig. 6. The inner side of the beam connecting plate 4 is provided with a welding spot for welding the beam connecting plate 4, the pillar inner panel 3 and the pillar reinforcement panel 2, as shown by Z234 in fig. 6. The side wall outer plate 1, the pillar reinforcement plate 2 and the pillar inner plate 3 are also provided with a plurality of jointing welding spots in the Z direction, which are shown in Z123 in figure 6, and the welding spots are welded by welding tongs penetrating through the welding hole 404 of the beam connecting plate 4. The welding spot used for welding with the pillar inner panel 3 is arranged on the welding surface 403 of the beam connecting plate, and the position of the welding spot corresponds to the position of the notch 605.
The Z-direction welding points on the pillar reinforcing plate 2, the pillar inner plate 3 and the beam connecting plate 4 are affected by the positions of the welding surfaces, and if the welding points in the Z direction are exact or are not arranged properly, the edge of the beam connecting plate 4 generates large fluctuation in the Z direction, so that the position accuracy of the roof outer plate 7 in the Z direction is affected. In the embodiment of the invention, the pillar reinforcing plate 2 and the pillar inner plate 3 are used as main bearing parts of the side wall assembly, and the material is preferably a thermal forming plate or other ultrahigh-strength materials; the beam connecting plate 4 is relatively complex in structure, if a thermal forming or ultrahigh strength material is used, the deep drawing height of a part needs to be reduced, so that the strength is affected, meanwhile, the size of the beam connecting plate 4 is small, the contribution of the thermal forming or ultrahigh strength material to the overall strength is limited, currently, the common material yield strength of the beam connecting plate 4 is generally below 420Mpa, the pillar reinforcing plate 2 and the pillar inner plate 3 are high in thickness and strength, the position deformation is small in the welding process, and the beam connecting plate 4 often follows the pillar reinforcing plate 22 and the pillar inner plate 33, so that the Z-direction welding points of the beam connecting plate 4, the pillar reinforcing plate 2 and the pillar inner plate 33 are more important in the side wall assembly welding process.
Referring to fig. 7, the welding point Z24 is close to the edge of the pillar reinforcement plate 2, specifically, the distance between the center of the welding point Z24 and the edge of the pillar reinforcement plate 2 is 7mm to 10mm, and the welding point Z24 is the welding point closest to the edge of the pillar reinforcement plate 2, so as to ensure the fitting degree of the pillar reinforcement plate 2 and the beam connecting plate 4 in the Z direction to the maximum extent, and at the same time, the width of the lap joint of the pillar reinforcement plate 2 and the beam connecting plate 4 can be reduced, thereby avoiding the waste of materials and the increase of the vehicle body weight caused by the overlong lap joint.
As shown in FIG. 7, weld Z234 is disposed only on the beam web back weld face 403 and falls into notch 605. According to the size of the side wall cavity given by modeling and total arrangement, a welding point between the beam connecting plate 4 and the pillar inner plate 3 is also arranged on the front welding surface 402 of the beam connecting plate, so that the connection of the pillar reinforcing plate 22, the pillar inner plate 33 and the beam connecting plate 44 in the Z direction is better realized.
Referring to fig. 8, welding spots for welding the beam connecting plate 4, the top cover front beam inner plate 5 and the top cover front beam outer plate 6 are respectively arranged on the inner plate front welding surface 503 and the inner plate rear welding surface 504; the top cover front beam inner plate 5 is provided with a welding spot for welding the top cover front beam inner plate 5 and the top cover front beam outer plate 6. The welding spot for welding the beam connecting plate 4, the pillar reinforcing plate 2 and the top cover front beam outer plate 6 is arranged on the rear welding surface 403 of the beam connecting plate; the pillar reinforcing plate 2 is provided with welding spots for welding the pillar reinforcing plate 2, the top cover front beam inner plate 5 and the top cover front beam outer plate 6.
In FIG. 8, weld Z56 is a self-contained two-layer plate weld in the header front rail assembly. Weld Z123, weld Z234, and weld Z24 are welds formed in the side wall assembly. And in the process of combining the top cover beam and the side wall assembly, only a welding point Z456, a welding point Z45, a welding point Z246 and a welding point Z256 are formed. Further, a welding spot Z456 is a three-layer welding spot connecting the beam connecting plate 4, the top cover front beam inner plate 5 and the top cover front beam outer plate 6, and is located on the inner plate front welding surface 503 and the inner plate rear welding surface 504. The welding point Z45 is a two-layer plate welding point for connecting the beam connecting plate 4 and the top cover front beam inner plate 5, and when welding, a welding tongs passes through a welding tongs passing hole 404 in the top cover front beam outer plate 6. The welding point Z246 is closer to the welding point Z24 and is a three-layer plate welding point for connecting the beam connecting plate 4, the pillar reinforcing plate 2 and the top cover front beam outer plate 6, wherein the top cover front beam outer plate 6 is positioned at the uppermost part, and the beam connecting plate 4 is positioned at the lowermost part. The welding spot Z256 is a three-layer plate welding spot connecting the pillar reinforcement 2, the top head front beam inner panel 5, and the top head front beam outer panel 6, wherein the top head front beam outer panel 6 is located uppermost, the pillar reinforcement 2 is located lowermost, and the welding tongs pass through the tongs passing hole 404 located on the beam connection plate 4 during welding.
Referring to fig. 9, the front side of the roof outer panel 7 is a roof outer panel front weld surface 701, and the roof outer panel front weld surface 701 is located above the outer panel front weld surface 603.
For the relation among the top cover, the top cover front cross beam assembly and the side wall assembly, the assembling station of the top cover outer plate 7 is generally positioned at the terminal of the welding vehicle body line, and before the assembling welding is completed by the left side wall assembly, the right side wall assembly, the lower vehicle body and the top cover front cross beam assembly. The assembly direction of the top cover outer plate 7 is that the top cover outer plate 7 falls above the top cover front cross beam assembly from top to bottom, and the top cover outer plate 7 is jointed and welded with the top cover front cross beam assembly, the top cover rear cross beam assembly and the left and right side wall assemblies.
Referring to fig. 9, in the embodiment of the present invention, the welding seam Z-L between the top cover outer panel 7 and the side wall assembly is formed by laser welding, and other welding points of the top cover outer panel 7 and the side wall assembly are conventional spot welding.
The front side of the top cover outer plate 7 is a top cover outer plate front welding face 701, a Z567 three-layer plate welding structure in the figure 9 is formed, meanwhile, a welding point Z247 is arranged at the position close to a welding line Z-L and the edge of the top cover outer plate 7, and the welding point Z247 falls on the second step 405.
Referring to fig. 10, a schematic view of the welding between the roof front cross member assembly and the roof outer panel 7 is shown. The welding point Z45 is a two-layer plate welding point for connecting the beam connecting plate 4 and the top cover front beam inner plate 5, and when welding, a welding tongs passes through a welding tongs passing hole 404 in the top cover front beam outer plate 6. The front welding surface 701 of the top cover outer plate, the front welding surface 603 of the outer plate, the front welding surface 503 of the inner plate and the front welding surface 402 of the beam connecting plate are sequentially stacked from top to bottom.
From top to bottom, the outer plate rear welding surface 604, the inner plate rear welding surface 504 and the beam connecting plate rear welding surface 403 are sequentially stacked to form a Z456 welding spot. The welding point Z45 is a two-layer plate welding point for connecting the beam connecting plate 4 and the top cover front beam inner plate 5, and when welding, a welding tongs passes through a welding tongs passing hole 404 in the top cover front beam outer plate 6. As can be seen from the cross section, the roof front rail inner 5 and the rail connecting plate 4 have only three surfaces that are joined together, and these three surfaces are substantially parallel Z-direction surfaces. The positioning of the roof front beam inner plate 5 and the beam connecting plate 4 in the longitudinal direction of the vehicle is ensured by a roof beam welding tool, and a first positioning hole 501 and a second positioning hole 502 are used.
In the direction of the vehicle head, a gap is reserved between the top cover front beam inner plate 5 and the beam connecting plate 4, and comprises a front gap and a rear gap. The recommended range of the clearance is 2-3 mm, if the connection strength of the top cover front beam inner plate 5 and the beam connecting plate 4 needs to be further improved, welding connection can be used at the clearance, or the front clearance is set to be 0 and spot welding connection is increased within the acceptable size range.
It should be noted that, in all the drawings of the present invention, the reference numeral at the beginning of "Z" indicates a welding point, and each numeral following "Z" corresponds to a component to which the reference numeral corresponds, for example, "Z56" indicates a welding point between the component "top cover front beam inner panel 5" and the component "top cover front beam outer panel 6", and "Z234" indicates a welding point between the component "pillar reinforcement panel 2", the component "pillar inner panel 3", and the component "beam connecting panel 4".
In the invention, a cavity with a closed cross section is formed between the top cover front beam inner plate 5 and the top cover front beam outer plate 6 by welding, so that the torsional rigidity and the roof compression resistance of a car body can be greatly improved, and the invention is particularly suitable for glass roof cars without metal top covers and glass skylight cars with larger openings and without top cover middle beams; the beam connecting plate 4 on the side wall assembly and other parts in the side wall assembly are connected in the transverse direction of the vehicle body and have reliable Z-direction connection, so that reliable precision is provided for the top cover front beam assembly in the Z-direction position, and the defects in the prior art are avoided; the beam connecting plate 4 is connected with other parts of the side wall assembly, the top cover front beam assembly is connected with the side wall assembly, and three-layer plate spot welding is mostly used in the connection process of the top cover outer plate 7, the welding process technology is mature, the cost is low, and the connection strength is guaranteed; a gap is reserved between the top cover beam and the side wall assembly in the transverse direction of the car sound, the position of the car sound in the transverse direction is guaranteed by the aid of the clamp during assembly of the top cover front beam assembly, so that the position of the car sound in the transverse direction of the top cover front beam assembly is guaranteed, and influence of Z-direction lamination on the position of the top cover front beam assembly in the X direction (namely the vertical direction of the car sound) is avoided.
The connecting structure between the roof and the car body of the embodiment of the invention has the advantages that the roof front cross beam inner plate 5 and the roof front cross beam outer plate 6 covered on the roof front cross beam inner plate 5 are arranged, and the roof front cross beam outer plate 6 and the roof front cross beam inner plate 5 are welded, so that a cavity with a closed cross section is formed between the roof front cross beam outer plate 6 and the roof front cross beam inner plate 5, the torsional rigidity and the roof pressure resistance of the car body are effectively improved, meanwhile, the cross beam connecting plate 4 in the side wall assembly and other parts in the side wall assembly are reliably connected in the vertical direction of the car body besides the connection in the longitudinal direction of the car body, so that the reliable installation precision of the roof front cross beam assembly in the vertical direction of the car body is provided, and the roof front cross beam assembly, the side wall assembly and the roof 7 can be connected by using the spot welding among a plurality of layers of plates in the connecting process, the connection strength is reliable.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A connecting structure between a vehicle roof and a vehicle body, characterized by comprising:
the top cover front cross beam assembly comprises a top cover front cross beam inner plate (5) and a top cover front cross beam outer plate (6) covering the top cover front cross beam inner plate (5), and the top cover front cross beam outer plate (6) and the top cover front cross beam inner plate (5) are welded;
the side wall assembly is arranged on each of two sides of the car body and comprises a side wall outer plate (1), a pillar reinforcing plate (2), a pillar inner plate (3) and a beam connecting plate (4) which are sequentially stacked from top to bottom, and the beam connecting plate (4) is positioned on the inner side of the car body and extends out of the car;
the top cover comprises a top cover outer plate (7) covering the top cover front cross beam assembly, and the top cover outer plate (7) is welded with the top cover front cross beam assembly and the side wall assembly;
one end of the top cover front beam assembly is connected with a pillar reinforcing plate (2) and a beam connecting plate (4) in a side wall assembly on one side of the vehicle body, and the other end of the top cover front beam assembly is connected with the pillar reinforcing plate (2) and the beam connecting plate (4) in the side wall assembly on the other side of the vehicle body.
2. A connecting structure between a vehicle roof and a vehicle body according to claim 1, wherein:
the periphery and the middle part of the opposite surface between the top cover front beam outer plate (6) and the top cover front beam inner plate (5) are provided with welding binding surfaces;
positioning holes (601) are formed in two ends of the top cover front cross beam inner plate (5), and are respectively a first positioning hole (501) and a second positioning hole (502), and the normal directions of the first positioning hole (501) and the second positioning hole (502) are parallel to the vertical direction of the vehicle body;
the length of the top cover front beam outer plate (6) is greater than that of the top cover front beam inner plate (5), and two ends of the top cover front beam outer plate (6) extend out of the top cover front beam inner plate (5).
3. A connecting structure between a roof and a vehicle body according to claim 2, wherein:
the front end of the top cover front beam inner plate (5) is an inner plate front welding surface (503), and the rear end of the top cover front beam inner plate (5) is an inner plate rear welding surface (504);
two ends of the inner plate front welding face (503) are provided with first steps (505), and the height of the first steps (505) is the same as the thickness of the top cover front beam outer plate (6).
4. A connecting structure between a roof and a vehicle body according to claim 3, wherein:
hooks (602) are arranged at two ends of the top cover front cross beam outer plate (6), and the hooks (602) face the top cover front cross beam inner plate (5);
holes (601) for welding tongs to pass through when the top cover front cross beam assembly and the side wall assembly are welded are formed in the two ends of the top cover front cross beam outer plate (6);
the front end of the top cover front cross beam outer plate (6) is an outer plate front welding surface (603), and the rear end of the top cover front cross beam outer plate (6) is an outer plate rear welding surface (604);
two ends of the front welding surface (603) of the outer plate are both provided with U-shaped notches (605), and the positions of the notches (605) correspond to the positions of the first steps (505) on the front welding surface (503) of the inner plate;
the width of the notch (605) is larger than that of the first step (505), and the length of the notch (605) is larger than that of the first step (505);
the first step (505) is attached to and welded with the outer plate (6) of the front cross beam of the top cover, the front welding face (603) of the outer plate is attached to and welded with the front welding face (503) of the inner plate, and the rear welding face (604) of the outer plate is attached to and welded with the rear welding face (504) of the inner plate.
5. A connecting structure between a roof and a vehicle body according to claim 4, wherein:
among the side wall outer plate (1), the pillar reinforcing plate (2), the pillar inner plate (3) and the beam connecting plate (4), the side wall outer plate (1) is positioned at the outermost side, and the beam connecting plate (4) is positioned at the innermost side;
a side wall notch (101) is formed in the inner side of the side wall outer plate (1), a second step (405) is formed in the upper surface of the rear end of the cross beam connecting plate (4), and the height of the second step (405) is the same as that of the first step (505);
a welding tongs through hole (404) is formed in the beam connecting plate (4), and a beam pre-hanging hole (202) is formed in one end, close to the interior of the vehicle, of the column reinforcing plate (2);
the front end of the beam connecting plate (4) is a beam connecting plate front welding surface (402), and the rear end of the beam connecting plate (4) is a beam connecting plate rear welding surface (403);
the beam pre-hanging hole (202) is formed in the pillar reinforcing plate (2), and the hook (602) on the top cover front beam outer plate (6) is located in the beam pre-hanging hole (202).
6. A connecting structure between a roof and a vehicle body according to claim 5, wherein:
the upper surface of the beam connecting plate (4) is provided with a plurality of rows of welding points for welding with the pillar inner plate (3) along the longitudinal direction of the vehicle body;
welding spots for welding with the pillar inner plate (3) are arranged on the front welding surface (402) of the beam connecting plate and the rear welding surface (403) of the beam connecting plate, and the welding spots are close to the edge of the pillar inner plate (3);
and welding spots for welding the beam connecting plate (4), the pillar inner plate (3) and the pillar reinforcing plate (2) are arranged on the inner side of the beam connecting plate (4).
7. A connecting structure between a roof and a vehicle body according to claim 5, wherein: and welding spots for welding with the pillar inner plate (3) are arranged on the rear welding surface (403) of the beam connecting plate, and the positions of the welding spots correspond to the positions of the notches (605).
8. A connecting structure between a roof and a vehicle body according to claim 5, wherein:
welding spots for welding the beam connecting plate (4), the top cover front beam inner plate (5) and the top cover front beam outer plate (6) are arranged on the inner plate front welding surface (503) and the inner plate rear welding surface (504);
and the top cover front cross beam inner plate (5) is provided with welding spots for welding the top cover front cross beam inner plate (5) and the top cover front cross beam outer plate (6).
9. A connecting structure between a roof and a vehicle body according to claim 5, wherein:
welding spots for welding the beam connecting plate (4), the pillar reinforcing plate (2) and the top cover front beam outer plate (6) are arranged on the beam connecting plate rear welding surface (403);
and welding spots for welding the pillar reinforcing plate (2), the top cover front beam inner plate (5) and the top cover front beam outer plate (6) are arranged on the pillar reinforcing plate (2).
10. A connecting structure between a roof and a vehicle body according to claim 5, wherein: the front side of the top cover outer plate (7) is a top cover outer plate front welding face (701), and the top cover outer plate front welding face (701) is located above an outer plate front welding face (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111010349.XA CN113602366A (en) | 2021-08-31 | 2021-08-31 | Connecting structure between vehicle roof and vehicle body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111010349.XA CN113602366A (en) | 2021-08-31 | 2021-08-31 | Connecting structure between vehicle roof and vehicle body |
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| CN113602366A true CN113602366A (en) | 2021-11-05 |
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| CN202111010349.XA Pending CN113602366A (en) | 2021-08-31 | 2021-08-31 | Connecting structure between vehicle roof and vehicle body |
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| CN114620143A (en) * | 2022-03-25 | 2022-06-14 | 浙江吉利控股集团有限公司 | Automobile body side wall assembly, automobile body assembly and vehicle |
| CN115056857A (en) * | 2022-06-30 | 2022-09-16 | 岚图汽车科技有限公司 | Connecting structure of top cover front cross beam and side wall and automobile |
| CN115056858A (en) * | 2022-07-11 | 2022-09-16 | 岚图汽车科技有限公司 | Top cover beam joint reinforcing structure, top cover beam assembly structure and vehicle |
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Application publication date: 20211105 |