A new type of modular roof skeleton tooling

Abstract

The utility model provides a novel modularization top cover skeleton frock, including a plurality of three -dimensional flexible platform, first positioning module, second positioning module and a plurality of third positioning module, first positioning module includes a profiling locating plate and at least one side with the first distance interval connection on the locating plate of profiling locating plate, second positioning module includes a profiling locating plate and at least the other side with the first distance interval connection on the locating plate of profiling locating plate, third positioning module includes a profiling locating plate and with the first distance interval connection on both sides of the locating plate of profiling locating plate, profiling locating plate is adjustablely connected on the mounting hole through the positioning square, its upper end surface is adapted with top cover curved surface, and a plurality of limiting pieces with upper limit mouth are arranged at intervals, a plurality of positioning grooves are arranged at intervals on the locating plate upper end surface. The originally complex frock manufacturing process is converted into the building block type splicing mode, so that the top cover skeleton frock is more convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of automotive roof frame tooling technology, and more specifically, to a novel modular roof frame tooling. Background Technology

[0002] As the core carrier of the overall vehicle structural strength, the welding precision of the vehicle body frame directly determines the vehicle's safety, assembly quality, and service life. Currently, in order to ensure the welding of large-sized curved surface components such as the roof in bus manufacturing, problems such as insufficient tooling positioning precision and rigidity deviations are common. Existing technologies generally adopt fixed tooling systems for the welding process of bus roof frames. That is, a fixed frame design is used for a single model. By adapting the roof frame size to a specific model, positioning blocks and clamping devices are used to position important positions of the roof frame. The tooling manufacturing process relies on manual measurement and marking for positioning, lacking standard positioning benchmarks, resulting in large welding errors. At the same time, when new models with different body lengths in the same series are needed, the main body of the tooling must be redesigned and modified, resulting in a long development cycle. Moreover, the old tooling has a high scrap rate because it cannot be reused, which leads to resource waste.

[0003] Furthermore, in existing technologies, most bus roof frame welding processes employ an upright welding method to ensure consistent outer surface height. Positioning points are set at the bottom of the arc rod, and workers rely on visual inspection and string lines to ensure uniformity of the outer arc surface. This method demands high operator skill, has low efficiency, and cannot guarantee accurate arc rod placement, resulting in poor product consistency. Additionally, while clamping devices are specifically designed for individual bus models, they are often designed to avoid interference points around the welding area to facilitate welding. Consequently, after welding, unclamped areas may deform due to cooling and shrinkage. Therefore, developing a dedicated welding fixture for the roof structure adapted to new bus designs is crucial for this project's breakthrough. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a new type of modular top cover frame tooling to solve the above problems.

[0005] The present invention adopts the following solution:

[0006] This application provides a novel modular top cover frame tooling, including multiple three-dimensional flexible platforms that can be assembled, and a first positioning module, a second positioning module, and multiple third positioning modules that can be movably set on the three-dimensional flexible platforms;

[0007] The three-dimensional flexible platform is provided with a plurality of mounting holes evenly spaced apart; the first positioning module includes a contour positioning plate and a positioning plate connected to the contour positioning plate at least on one side at a first distance interval; the second positioning module includes the contour positioning plate and a positioning plate connected to the contour positioning plate at least on the other side at a first distance interval; the third positioning module includes the contour positioning plate and positioning plates connected to both sides of the contour positioning plate at a first distance interval.

[0008] The contour positioning plate is adjustablely connected to the mounting hole via a positioning angle ruler. Its upper end face is adapted to the curved surface of the top cover and is provided with multiple limiting members with upper limit openings at intervals to limit the arc rod of the skeleton in the length direction. The upper end face of the positioning plate is provided with multiple positioning grooves at intervals to limit the middle crossbeam of the skeleton in the width direction.

[0009] Furthermore, the bottom end faces of the plurality of positioning grooves located in the middle of the positioning plate are adapted to the curved surface of the top cover or are not lower than the upper end face of the contour positioning plate; the bottom end faces of the positioning grooves at both ends are adapted to the cross sections at both ends of the arc rod.

[0010] Furthermore, the positioning plate includes a central positioning plate connected to the middle of the contour positioning plate, and side positioning plates on both sides.

[0011] Furthermore, the positioning angle ruler is L-shaped in general, and its side wall is provided with a connecting hole for fixed connection with the contour positioning plate by connecting locking pin; the bottom wall is provided with an elliptical groove of a certain length, which is connected to the mounting hole on the three-dimensional flexible platform by a quick locking pin.

[0012] Furthermore, the length of the elliptical groove is greater than or equal to the distance between the outer ends of two adjacent mounting holes.

[0013] Furthermore, the limiting member is H-shaped in general, with the limiting opening on its upper side and the card interface on its lower side; the contour positioning plate is provided with a card slot adapted to the card interface; the bottom end face of the limiting opening is not higher than the upper end face of the contour positioning plate.

[0014] Furthermore, the positioning plate is connected to the contour positioning plate via a connecting locking pin, and the first distance is greater than 70mm.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] 1. By using innovative modular connection methods, the original complex tooling manufacturing process is transformed into a building block-style assembly method, making the manufacturing of the top cover frame tooling more convenient to operate;

[0017] 2. Improved product positioning accuracy, enabling faster and more effective assurance of product accuracy and consistency;

[0018] 3. It can accommodate the roof frame configurations of various car models, greatly reducing the manufacturing cost of roof frame tooling for new car models;

[0019] 4. It can achieve more than 80% of the welding work on the tooling, thereby effectively reducing welding deformation and improving product quality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a novel modular top cover frame tooling after placing the top cover frame according to an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of a three-dimensional flexible platform structure of a novel modular top cover frame tooling according to an embodiment of this utility model;

[0023] Figure 3 This is a partial structural diagram of the top cover frame and tooling after assembly, according to an embodiment of the present utility model.

[0024] Figure 4 This is a schematic diagram of the third positioning module structure of a novel modular top cover frame tooling according to an embodiment of this utility model;

[0025] Figure 5 yes Figure 4 A schematic diagram of the decomposed structure;

[0026] Figure 6 This is a schematic diagram of the first positioning module structure of a novel modular top cover frame tooling according to an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the second positioning module structure of a novel modular top cover frame tooling according to an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the limiting component structure of a novel modular top cover frame tooling according to an embodiment of this utility model;

[0029] Icons: 1. 3D Flexible Platform; 2. Installation Platform; 3. First Positioning Module; 4. Second Positioning Module; 5. Third Positioning Module; 6. Mounting Hole; 7. Contour Positioning Plate; 8. Snap-fit ​​Slot; 9. Limiting Component; 10. Limiting Port; 11. Snap-fit ​​Interface; 12. Through Hole; 13. Positioning Slot; 14. Middle Positioning Plate; 15. Side Positioning Plate; 16. Positioning Angle Ruler; 17. Elliptical Slot; 18. Limiting Bushing; 19. Arc Rod; 20. Middle Crossbeam; 21. Side Longitudinal Beam; 22. Top Cover Frame. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] Example

[0032] Combination Figures 1 to 8 As shown, this embodiment provides a novel modular top cover frame tooling, including multiple three-dimensional flexible platforms 1 that can be assembled, and a first positioning module 3, a second positioning module 5 and multiple third positioning modules 4 that can be movably set on the three-dimensional flexible platform 1;

[0033] The three-dimensional flexible platform 1 is provided with a plurality of mounting holes 6 evenly spaced; the first positioning module 3 includes a contour positioning plate 7 and a positioning plate connected to the contour positioning plate 7 at least one side at a first distance; the second positioning module 5 includes the contour positioning plate 7 and the positioning plate connected to the contour positioning plate 7 at least one other side at a first distance; the third positioning module 4 includes the contour positioning plate 7 and the positioning plates connected to both sides of the contour positioning plate 7 at a first distance.

[0034] The contour positioning plate 7 is adjustablely connected to the mounting hole 6 via a positioning angle ruler 16. Its upper end face is adapted to the curved surface of the top cover, and multiple limiting members 9 with upper limit openings 10 are provided at intervals to limit the arc rod 19 of the skeleton in the length direction. Multiple positioning grooves 13 are provided at intervals on the upper end face of the positioning plate to limit the middle crossbeam 20 of the skeleton in the width direction.

[0035] In this embodiment, to better illustrate the solution, such as Figure 1 As shown, taking a 14.8m roof frame 22 as an example, this scheme is explained in detail. It includes seven three-dimensional flexible platforms 1 spliced ​​and locked together along the length direction to form an installation platform 2. A first positioning module 3 and a second positioning module 5 are respectively disposed on both sides of the installation platform 2, and the positioning plates are all oriented towards the center. The center includes 12 third positioning modules 4 arranged along the length direction, wherein the arrangement of the third positioning modules 4 is set according to the required strength of the roof frame 22. It should be noted that the sides of the three-dimensional flexible platforms 1 are also evenly spaced with multiple mounting holes 6 to facilitate the connection and fixation of two three-dimensional flexible platforms 1 by connecting pins or other connectors.

[0036] like Figures 3 to 8 As shown, the contour positioning plate 7 is reverse-engineered from technical drawings and machined with high precision to achieve a surface consistent with the outer arc of the theoretical arc rod 19. Therefore, it has an inspection function; any errors in the arc machining of the arc rod 19 can be detected immediately, improving product consistency. The contour positioning plate 7 has multiple interlocking slots 8 spaced apart. Each interlocking slot 8 has a limiting member 9, which is H-shaped. The limiting member 9 has a limiting opening 10 on its upper side and a locking interface 11 on its lower side to engage with the interlocking slot 8. A through hole 12 is also provided on the lower side for the limiting hole on the contour positioning plate 7 to be fixed by a limiting pin. The bottom end face of the limiting opening 10 is not higher than the upper end face of the contour positioning plate 7. The arc rod 19 is placed on the limiting opening 10, achieving limitation in the length direction (the length direction of the top cover frame 22).

[0037] In this embodiment, the multiple positioning grooves 13 located in the middle of the positioning plate are used to support the central crossbeam 20 and limit its width in the skeleton direction. Their bottom end faces are adapted to or not lower than the upper end face of the contour positioning plate 7 to ensure that the central crossbeam 20 does not protrude from the outer side of the arc rod 19 after welding with it, thereby ensuring the consistency of the outer surface height after the subsequent outer shell connection. The bottom end faces of the positioning grooves 13 at both ends are adapted to the cross-sections at both ends of the arc rod 19, thus limiting the arc rod 19 in the skeleton width direction after the side longitudinal beams 21 at both ends are placed in the positioning grooves 13, ensuring that the arc rod 19 is in an accurate position.

[0038] Specifically, the positioning plate includes a central positioning plate 14 connected to the middle of the contour positioning plate 7, and side positioning plates 15 on both sides. In actual use, the central positioning plate 14 and the side positioning plates 15 are assembled according to the actual structure of the top cover frame 22. For example, if a certain section in the middle needs to be left empty, the central positioning plate 14 may not be installed.

[0039] The positioning ruler 16 is L-shaped, with connecting holes on its side walls for fixed connection to the contour positioning plate 7 via locking pins. Its bottom wall has an elliptical groove 17 of a certain length, which connects to the mounting holes 6 on the three-dimensional flexible platform 1 via quick-locking pins. The length of the elliptical groove 17 is greater than or equal to the distance between the outer ends of two adjacent mounting holes 6. This allows the contour positioning plate 7 to be infinitely adjustable along its length on the mounting platform 2, achieving versatility.

[0040] The positioning plate is connected to the contour positioning plate 7 via a connecting locking pin. The positioning plate and the contour positioning plate 7 are spaced apart by a limiting bushing 18 disposed on the connecting locking pin. In this embodiment, the length of the limiting bushing 18 is 72.5 mm, meaning the gap between the positioning plate and the contour positioning plate 7 is 72.5 mm. This provides ample working space for the welder, ensuring high welding quality and guaranteeing that at least three weld seams are completely welded at the joint during a single welding operation. This allows for over 80% of the welding work to be completed on the tooling, effectively reducing welding deformation and improving product quality.

[0041] The above-mentioned innovative modular connection method transforms the previously complex tooling manufacturing process into a modular assembly method, making the production of the roof frame 22 tooling more convenient. It improves product positioning accuracy and ensures product precision and consistency more quickly and effectively. Furthermore, based on different lengths of vehicle models within the same series (with consistent curvature of the roof frame arc rod 19), adaptation can be achieved by adjusting the relative positions of the first positioning module 3, the second positioning module 5, and the third positioning module 4 to accommodate various vehicle models' roof frame 22 states, significantly reducing the manufacturing cost of the new vehicle model's roof frame 22 tooling.

[0042] like Figure 1 As shown, once all the arc rods 19, the side longitudinal beams 21, and the central cross beams 20 are placed in their corresponding positions on the fixture, their positions are fixed in both the length and width directions. There is no need to use clamping devices for targeted clamping, thus avoiding a series of problems caused by deformation of the unclamped positions due to welding cooling and shrinkage after welding.

[0043] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A novel modular top cover frame tooling, characterized in that, It includes multiple three-dimensional flexible platforms (1) that can be assembled, and a first positioning module (3), a second positioning module (4) and multiple third positioning modules (5) that can be movably set on the three-dimensional flexible platforms (1); The three-dimensional flexible platform (1) is provided with a plurality of mounting holes (6) evenly spaced; the first positioning module (3) includes a contour positioning plate (7) and a positioning plate connected to the contour positioning plate (7) at least on one side at a first distance; the second positioning module (5) includes the contour positioning plate (7) and a positioning plate connected to the contour positioning plate (7) at least on the other side at a first distance; the third positioning module (4) includes the contour positioning plate (7) and positioning plates connected to both sides of the contour positioning plate (7) at a first distance. The contour positioning plate (7) is adjustablely connected to the mounting hole (6) via a positioning angle ruler (16). Its upper end face is adapted to the curved surface of the top cover, and multiple limiting members (9) with upper limit openings (10) are provided at intervals to limit the arc rod (19) of the skeleton in the length direction of the skeleton. Multiple positioning grooves (13) are provided at intervals on the upper end face of the positioning plate to limit the middle crossbeam (20) of the skeleton in the width direction of the skeleton.

2. The novel modular top cover frame tooling according to claim 1, characterized in that, The bottom end face of the plurality of positioning grooves (13) located in the middle of the positioning plate is adapted to the curved surface of the top cover or is not lower than the upper end face of the contour positioning plate (7); the bottom end face of the positioning grooves (13) at both ends is adapted to the cross section at both ends of the arc rod (19).

3. The novel modular top cover frame tooling according to claim 1 or 2, characterized in that, The positioning plate includes a central positioning plate (14) connected to the middle of the contour positioning plate (7), and side positioning plates (15) on both sides.

4. The novel modular top cover frame tooling according to claim 1, characterized in that, The positioning angle ruler (16) is L-shaped in general. Its side wall is provided with a connecting hole and is fixedly connected to the contour positioning plate (7) by a connecting locking pin. The bottom wall is provided with an elliptical groove (17) of a certain length, which is connected to the mounting hole (6) on the three-dimensional flexible platform (1) by a quick locking pin.

5. The novel modular top cover frame tooling according to claim 4, characterized in that, The length of the elliptical groove (17) is greater than or equal to the distance between the outer ends of two adjacent mounting holes (6).

6. The novel modular top cover frame tooling according to claim 1, characterized in that, The limiting member (9) is H-shaped in general, with the limiting port (10) on its upper side and the card interface (11) on its lower side; the contour positioning plate (7) is provided with a card slot (8) adapted to the card interface (11); the bottom end face of the limiting port (10) is not higher than the upper end face of the contour positioning plate (7).

7. The novel modular top cover frame tooling according to claim 1, characterized in that, The positioning plate is connected to the contour positioning plate (7) by a connecting locking pin, and the first distance is greater than 70mm.

Images