Pre-hasp structure of automobile body top cover beam and automobile

Abstract

The pre-hasp structure of the automobile body top cover beam is used for connecting the top cover beam of the automobile body with a beam connecting plate and comprises a hasp tongue arranged on the beam connecting plate, a hasp buckle arranged on the hasp tongue, a hasp buckle arranged on the hasp buckle, and a hasp buckle arranged on the hasp buckle, the lapping opening is formed in the top cover cross beam, and the lapping tongue and the lapping opening are matched to connect the top cover cross beam with the cross beam connecting plate; wherein the lapping tongue is provided with a base part and a lock catch part, at least one part of the base part is located in the lapping opening, the lock catch part is located outside the lapping opening, the base part and the lock catch part are stacked on the lapping opening, and the cross section of the base part is smaller than the cross section of the end, close to the base part, of the lock catch part. According to the technical scheme provided by the utility model, the problems that in the prior art, after a top cover cross beam and a side wall are preassembled, a mechanical tool cannot be bent for tongue lapping, and a vehicle body framework is conveyed to a next station on a roller bed and is conveyed in place for falling can be solved; the top cross beam pops up and falls off, the production line stops, and the quality problem of the vehicle body is solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a pre-fastening structure for a roof beam and an automobile. Background Technology

[0002] The roof crossbeams are pre-assembled into the body frame using a pre-clamping method, which optimizes process breakdown, reduces the complexity of fixtures at the main assembly station, improves welding performance, and increases production cycle time. Therefore, the pre-clamping and pre-assembly process is an important technological solution in automobile body production.

[0003] The existing top crossbeam pre-hook structure is a tongue + lap joint type, with the conventional tongue structure being L-shaped and the tongue shape being rectangular. With the increasing performance requirements of the vehicle body, the side inner panels are made of hot-formed high-strength steel or ordinary high-strength steel plates. After the top crossbeam and side panels are pre-assembled, the mechanical tooling cannot bend the tongue. In this unbent state, when the body frame is transported to the next station on the roller and during its descent, the body frame will vibrate, causing the top crossbeam to pop out and fall off, production line stoppage, and body quality problems. Utility Model Content

[0004] This utility model provides a pre-hook structure for a roof crossbeam and a car body, aiming to effectively solve the technical problem in the prior art where, after the roof crossbeam and side panel are pre-assembled, the mechanical tooling cannot be bent to hook the crossbeam, which causes the car body frame to vibrate during the process of being transported to the next work station on the roller bed and landing in place, resulting in the roof crossbeam popping out and falling off, production line stoppage, and car body quality problems.

[0005] According to a first aspect of the present invention, the present invention provides a pre-hook structure for a roof crossbeam of a vehicle body, for connecting the roof crossbeam of the vehicle body to a crossbeam connecting plate, comprising: a latch, disposed on the crossbeam connecting plate; and a latch, disposed on the roof crossbeam, wherein the latch and the latch cooperate to connect the roof crossbeam to the crossbeam connecting plate; wherein the latch has a base portion and a locking portion, at least a portion of the base portion is located inside the latch, the locking portion is located outside the latch, and the base portion and the locking portion are stacked on the latch, wherein the cross-section of the base portion is smaller than the cross-section of the locking portion near the end of the base portion.

[0006] Furthermore, in the first direction, the width of the opening is 10mm, and in the second direction, the length of the opening is 20mm, and the first and second directions are perpendicular.

[0007] Furthermore, in the third direction, the height of the tongue is 9.5 mm, and the third direction is perpendicular to the first direction and the second direction.

[0008] Furthermore, in the third direction, the cross-sectional area of ​​the latch gradually decreases.

[0009] Furthermore, the portion of the base located within the overlap is at the center of the overlap.

[0010] Furthermore, in the first direction, the distance between the base and its nearest inner wall of the overlap is 4.5 mm.

[0011] Furthermore, in the second direction, the width of the base portion is 10mm, and the width of the locking portion near the end of the base portion is 16mm.

[0012] Furthermore, in the second direction, the distance between the base and its nearest inner wall of the overlap is 5 mm.

[0013] Furthermore, in the third direction, the height of the base part is 5mm, and the height of the locking part is 4.5mm.

[0014] According to a second aspect of the present invention, the present invention also provides an automobile, including a body, a roof crossbeam and a crossbeam connecting plate disposed on the body, and a pre-fastening structure for the roof crossbeam as described in any of the preceding claims, wherein the pre-fastening structure for the roof crossbeam is used to connect the roof crossbeam and the crossbeam connecting plate.

[0015] Through one or more embodiments of the above-described embodiments of this utility model, at least the following technical effects can be achieved:

[0016] In the technical solution disclosed in this utility model, the latch is divided into two parts: a base part and a locking part. The cross-section of the base part is smaller than the cross-section of the locking part near the base part, which makes the latch itself have a stepped surface. In this way, after the top cover beam and side panel are pre-assembled, the mechanical tooling does not need to bend the latch, and the stepped surface of the latch can also be used to lock the top beam. Therefore, the top beam will not pop out and fall off when the body frame vibrates, and the production line will not be stopped due to the top beam popping out and falling off. This effectively ensures the assembly quality and production efficiency of the body frame. Attached Figure Description

[0017] The technical solution and other beneficial effects of this utility model will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0018] Figure 1 A schematic diagram of the pre-hook structure of the existing vehicle body roof crossbeam;

[0019] Figure 2 for Figure 1 A sectional view along the A'-A' direction;

[0020] Figure 3 for Figure 1 A sectional view along the B'-B' direction;

[0021] Figure 4 A schematic diagram of the pre-hook structure of the vehicle roof crossbeam provided for an embodiment of this utility model;

[0022] Figure 5 for Figure 1 A cross-sectional view along the AA direction;

[0023] Figure 6 for Figure 1 A cross-sectional view along the BB direction.

[0024] Figure label:

[0025] 1. Tongue; 2. Joint; 11. Foundation; 12. Locking part; 10. Top cover beam; 20. Beam connecting plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0028] The roof crossbeams are pre-assembled into the body frame using a pre-clamping method, which optimizes process breakdown, reduces the complexity of fixtures at the main assembly station, improves welding performance, and increases production cycle time. Therefore, the pre-clamping and pre-assembly process is an important technological solution in automobile body production.

[0029] Currently, the pre-fastened structure of the top crossbeam is a tongue-and-groove joint design; please refer to [reference needed]. Figures 1-3The standard tongue structure is L-shaped, with the tongue itself being rectangular. However, with increasing demands on vehicle body performance, the inner side panels are made of hot-formed high-strength steel or ordinary high-strength steel plates. After the roof crossbeam and side panels are pre-assembled, the mechanical tooling cannot bend the tongue. Thus, with the tongue unbent, the vehicle frame vibrates during transport on the roller bed to the next station and during its descent, potentially causing the roof crossbeam to pop out and fall, leading to production line stoppages and vehicle body quality issues.

[0030] To address the aforementioned issues, this application provides a pre-hook structure for the roof crossbeam and a vehicle. This structure prevents the roof crossbeam from popping out and falling off due to vehicle vibrations during the transport and descent of the vehicle frame on the roller bed after pre-assembly on the body. This significantly reduces the probability of production line downtime and effectively ensures the assembly quality and production efficiency of the vehicle frame.

[0031] Figures 4-6 The diagram shows a pre-hook structure for a roof crossbeam provided in an embodiment of the present invention, used to connect the roof crossbeam 10 of the vehicle body to the crossbeam connecting plate 20. It includes: a latch 1 disposed on the crossbeam connecting plate 20; and a latch 2 disposed on the roof crossbeam 10. The latch 1 and the latch 2 cooperate to connect the roof crossbeam 10 to the crossbeam connecting plate 20. The latch 1 has a base portion 11 and a locking portion 12. At least a portion of the base portion 11 is located inside the latch 2, and the locking portion 12 is located outside the latch 2. The base portion 11 and the locking portion 12 are stacked on the latch 2. The cross-section of the base portion 11 is smaller than the cross-section of the locking portion 12 near the end of the base portion 11.

[0032] The latch 1 of the pre-hook structure of the roof crossbeam provided in this embodiment is divided into two parts: a base part 11 and a locking part 12. The cross-section of the base part 11 is smaller than the cross-section of the locking part 12 near the base part 11. This makes the latch 1 itself have a stepped surface. After the roof crossbeam 10 and the side panel are pre-assembled, the mechanical tooling does not need to bend the latch 1. The stepped surface of the latch 1 can also be used to lock the roof crossbeam. Therefore, the roof crossbeam will not pop out and fall off when the body frame vibrates. This will prevent the production line from stopping due to the roof crossbeam popping out and falling off, effectively ensuring the assembly quality and production efficiency of the body frame.

[0033] In this embodiment, the base part 11 and the locking part 12 are integrally formed. The connection between the base part 11 and the locking part 12 formed by this method is more stable. When the latch 1 cooperates with the latch 2 to lock the top beam, the latch 1 is more stable under stress. This reduces the probability of the latch 1 breaking at the connection between the base part 11 and the locking part 12 due to vibration of the body frame. Therefore, it further reduces the probability of the top crossbeam popping off and the production line stopping due to the top crossbeam popping off, and more effectively ensures the assembly quality and production efficiency of the body frame.

[0034] In some embodiments, the base part 11 and the locking part 12 are not integrally formed, but are fixed by a fastener. This makes the base part 11 and the locking part 12 easier to manufacture. For example, when manufacturing the tongue 1 using processes such as injection molding or cutting, it is obviously easier to process the tongue 1 into the base part 11 and the locking part 12 separately than to integrally form the tongue 1.

[0035] For example, the base part 11 and the locking part 12 are not integrally formed. The locking part 12 has an insertion hole, and the base part 11 has an insertion part at one end near the locking part 12. In this embodiment, the insertion part and the insertion hole are interference-fitted to fix the base part 11 and the locking part 12.

[0036] In this embodiment, a shock-absorbing pad is also provided at the top of the insertion part. Although the insertion part and the socket are in an interference fit, the interference fit itself relies on the friction between the inner wall of the insertion part and the socket. When the latch 1 is vibrated, a relative movement that is difficult to distinguish between the base part 11 and the locking part 12 may occur, which will cause relative movement between the insertion part and the inner wall of the socket. This may cause friction between the top of the insertion part and the bottom wall of the socket. Over time, a gap may form between the top of the insertion part and the bottom wall of the socket, thereby weakening or even failing the interference fit between the insertion part and the socket. Therefore, this embodiment uses a shock-absorbing pad to prevent friction between the top of the insertion part and the bottom wall of the socket, thereby preventing the formation of a gap between the top of the insertion part and the bottom wall of the socket over time, which would weaken or even fail the interference fit between the insertion part and the socket.

[0037] In some embodiments, in addition to the interference fit between the insertion part and the socket, an auxiliary fixing component can be provided between the insertion part and the locking part 12. For example, the auxiliary fixing component can be a magnet and an iron block. In this embodiment, the iron block can be provided inside the insertion part, or the insertion part itself can be an iron product, and the magnet can be provided inside the locking part. This allows the magnetic attraction effect to make the fit between the insertion part and the socket more stable. In other embodiments, an iron block can be provided in the locking part 12, and a magnet can be provided inside the insertion part, or the insertion part itself can be a magnet. This also allows the magnetic attraction effect to make the fit between the insertion part and the socket more stable.

[0038] In other embodiments, the auxiliary fixing components may also be grooves and protrusions. In this embodiment, there is at least one protrusion disposed on the surface of the insertion part, and the groove is formed on the inner wall of the socket. The groove and the protrusion are adapted to each other or the groove and the protrusion are interference fit. In this embodiment, the force that can separate the insertion part from the socket is along the depth direction of the socket. By providing a groove on the inner wall of the socket and using a protrusion, when the insertion part is subjected to a force along the depth direction of the socket, the groove and the protrusion can distribute the force received by the insertion part, thereby reducing the force received by the insertion part along the depth direction of the socket, making it more difficult for the insertion part to separate from the socket, and thus making the fit between the insertion part and the socket more stable.

[0039] For example, the locking part 12 and the base part 11 can also be fixed to each other by welding or strong adhesive.

[0040] In some embodiments, a flexible layer is also provided on the surface of the tongue 1. The flexible layer can be a rubber layer or a soft plastic layer, etc. The purpose of providing a flexible layer on the surface of the tongue 1 is to ensure that when the tongue 1 and the joint 2 are used to connect the top cover beam and the beam connecting plate, the tongue 1 will come into contact with the joint 2 or the top cover beam 10, and may even rub against each other. Since the tongue 1, the joint 2, or the top cover beam 10 have a certain degree of hardness, this may cause scratches on the surface of the tongue 1, the joint 2, or the top cover beam 10. By providing a flexible layer, the tongue 1 can be protected when it comes into contact with the joint 2 or the top cover beam 10, and even when friction occurs, thereby preventing scratches from appearing.

[0041] In some embodiments, the latching portion 12 is chamfered in the circumferential direction. In this embodiment, the chamfer makes the circumferential direction of the latching portion 12 more rounded and smooth, reducing the sharpness of the latching portion 12 in the circumferential direction. This further reduces the probability of the latching portion 12 scratching the latching portion 12 when the latch 1 comes into contact with the latch 2 or the top cover beam 10. In some embodiments, the width of the latch 2 is 10mm in the first direction, and the length of the latch 2 is 20mm in the second direction, and the first and second directions are perpendicular.

[0042] In this embodiment, for ease of association with the accompanying drawings, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction. These three directions can form a three-dimensional coordinate system.

[0043] In some embodiments, in the third direction, the height of the tongue 1 is 9.5 mm, and the third direction is perpendicular to the first direction and the second direction.

[0044] In some embodiments, the cross-sectional area of ​​the latching portion 12 gradually decreases in the third direction.

[0045] In this embodiment, the locking part 12 is arrow-shaped or mushroom-shaped, which saves material and reduces the weight of the locking part 12 compared to prism-shaped or cylindrical shapes.

[0046] In some embodiments, the portion of the base 11 located within the overlap 2 is at the center of the overlap 2.

[0047] In this embodiment, the base part 11 is located at the center of the joint 2, so that the body frame can be locked by the locking part 12 on the base part 11 when it vibrates in all directions, thereby further reducing the probability of the top crossbeam popping out and falling off.

[0048] In some embodiments, in the first direction, the distance between the base portion 11 and the inner wall of its nearest overlap 2 is 4.5 mm.

[0049] In some embodiments, in the second direction, the width of the base portion 11 is 10 mm, and the width of the latch portion 12 near the end of the base portion 11 is 16 mm.

[0050] In some embodiments, in the second direction, the distance between the base portion 11 and the inner wall of its nearest overlap 2 is 5 mm.

[0051] In some embodiments, in the third-party direction, the height of the base portion 11 is 5 mm, and the height of the latch portion 12 is 4.5 mm.

[0052] In summary, the pre-hook structure for the roof crossbeam provided in this application ensures that the roof crossbeam will not pop out or fall off due to vibrations during the transport and lowering of the vehicle frame on the roller bed after pre-assembly on the vehicle body. This significantly reduces the probability of production line downtime and effectively guarantees the assembly quality and production efficiency of the vehicle frame.

[0053] This application also provides an automobile, including a body, a roof beam and a beam connecting plate disposed on the body, and a pre-fastening structure for the roof beam as described in any of the above embodiments, wherein the pre-fastening structure for the roof beam is used to connect the roof beam and the beam connecting plate.

[0054] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A pre-hook structure for a vehicle roof crossbeam, used to connect the vehicle roof crossbeam to a crossbeam connecting plate, characterized in that, include: A tongue-and-groove joint is provided on the crossbeam connecting plate; An interlocking joint is provided on the top cover crossbeam, and the interlocking tongue and the interlocking joint cooperate to connect the top cover crossbeam to the crossbeam connecting plate; The flap has a base portion and a locking portion. At least a portion of the base portion is located inside the flap, and the locking portion is located outside the flap. The base portion and the locking portion are stacked on the flap. The cross-section of the base portion is smaller than the cross-section of the locking portion near the end of the base portion.

2. The pre-fastening structure of the vehicle roof crossbeam as described in claim 1, characterized in that, In the first direction, the width of the opening is 10mm, and in the second direction, the length of the opening is 20mm, and the first and second directions are perpendicular.

3. The pre-fastening structure of the vehicle roof crossbeam as described in claim 2, characterized in that, In the third direction, the height of the tongue is 9.5mm, and the third direction is perpendicular to the first direction and the second direction.

4. The pre-fastening structure of the vehicle roof crossbeam as described in claim 3, characterized in that, In the third direction, the cross-sectional area of ​​the latch gradually decreases.

5. The pre-hook structure of the vehicle roof crossbeam as described in claim 3, characterized in that, The portion of the base located within the overlap is at the center of the overlap.

6. The pre-hook structure of the vehicle roof crossbeam as described in claim 5, characterized in that, In the first direction, the distance between the base and the inner wall of its nearest overlap is 4.5 mm.

7. The pre-fastening structure of the vehicle roof crossbeam as described in claim 2, characterized in that, In the second direction, the width of the base portion is 10mm, and the width of the locking portion near the end of the base portion is 16mm.

8. The pre-hook structure of the vehicle roof crossbeam as described in claim 5, characterized in that, In the second direction, the distance between the base and the inner wall of its nearest overlap is 5 mm.

9. The pre-hook structure of the vehicle roof crossbeam as described in claim 5, characterized in that, In the third direction, the height of the base part is 5mm, and the height of the locking part is 4.5mm.

10. A car, characterized in that, The vehicle body includes a roof beam and a beam connecting plate disposed on the vehicle body, and a pre-fastening structure for the roof beam as described in any one of claims 1-9, wherein the pre-fastening structure for the roof beam is used to connect the roof beam and the beam connecting plate.

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