A mounting positioning tool and method for a back door outer panel framework

Abstract

The application relates to a mounting and positioning tool and a mounting method for a back door outer panel framework, and belongs to the technical field of back door outer panel framework assembly. The mounting and positioning tool comprises a frame body, clamping plates and first positioning pins. The frame body is in a half-enclosing structure, one side of the frame body is provided with an opening for nesting connection with the outer panel framework, and the frame body is provided with an opening hole for matching a bolt connection through hole arranged on the outer panel framework. The clamping plates are arranged in a plurality of intervals, each clamping plate is fixed to the opening side of the frame body, and the clamping plates are used for fixing the positioning tool to the outer panel framework. The first positioning pins are arranged at the bottom end of the frame body and are used for positioning the positioning tool to the vehicle body. The first positioning pins of the mounting and positioning tool can position the whole positioning tool connected with the outer panel framework to the vehicle body, the mounting position of the outer panel framework can be adjusted by using the positioning tool, and accurate positioning and assembly of the outer panel framework and the vehicle body can be realized.

Description

Technical Field

[0001] This application relates to the field of tailgate exterior panel frame assembly technology, and in particular to an installation positioning fixture and installation method for tailgate exterior panel frame. Background Technology

[0002] The tailgate exterior panel plays a crucial role in the rear of the vehicle, connecting the spoiler above, the taillight base below, the side panel A-side externally, and the tailgate glass internally. Its positioning requires high precision. The exterior panel consists of a frame and a skin; determining the frame's position on the vehicle body determines the skin's position (both are nested and self-positioning). Traditionally, the frame positioning relies on welded studs on the side panel and holes in the frame for self-positioning. However, the precision of the stud welding and thermoforming is difficult to guarantee, leading to significant assembly discrepancies and frequent disassembly and rework, resulting in numerous rear-end appearance defects and high repair costs, which is detrimental to vehicle production. Currently, through holes are created in the frame to mate with studs on the vehicle body, positioning the tailgate exterior panel frame for installation. However, this process makes precise adjustment of the frame difficult, leading to challenges in controlling the assembly position and ensuring installation accuracy. Summary of the Invention

[0003] This application provides an installation positioning fixture and installation method for a tailgate exterior trim panel frame, in order to solve the problem in related technologies where it is difficult to control the assembly position and ensure installation accuracy when assembling the tailgate exterior trim panel frame onto the vehicle body.

[0004] In a first aspect, embodiments of this application provide an installation and positioning fixture for the frame of a rear door exterior trim panel, comprising:

[0005] The frame body has a semi-enclosed structure, with an opening on one side for nesting and connecting the outer trim panel frame, and openings on the frame body for matching the bolt connection through holes on the outer trim panel frame.

[0006] The snap-fit ​​plates are spaced apart and each snap-fit ​​plate is fixed to the opening side of the frame body for fixing the positioning fixture to the outer trim panel frame.

[0007] The first positioning pin is disposed at the bottom end of the frame body and is used to position the positioning fixture to the vehicle body.

[0008] In some embodiments, a second positioning pin is further included. Multiple second positioning pins are spaced apart, and each second positioning pin is fixedly disposed on the opening side of the frame body for positioning the positioning fixture to the outer trim panel frame.

[0009] In some embodiments, two openings are provided, and the two openings correspond to bolt connection through holes provided at both ends of the outer trim panel frame.

[0010] In some embodiments, the frame body includes a first side plate, a cover plate connected to the first side plate, and a second side plate connected to the cover plate, one side of the second side plate protruding from the end of the cover plate, and a platform for easy gripping is formed between the second side plate and the cover plate.

[0011] In some embodiments, the first side plate is arc-shaped, and the first side plate gradually widens from one side to the other along its length.

[0012] In some embodiments, a fan-shaped top plate for matching the top edge of the exterior trim frame is fixedly disposed at one end of the first side plate.

[0013] In some embodiments, a positioning edge is provided at one end of the second side panel, the positioning edge being used to position the positioning fixture to the outer trim panel frame.

[0014] In some embodiments, the first positioning pin is fixed to the bottom end of the frame body via a connecting plate.

[0015] In some embodiments, the ends of the first side plate, the second side plate, and the first positioning pin are all provided with rounded chamfers.

[0016] Secondly, embodiments of this application provide a method for installing a rear door exterior trim panel frame, utilizing the aforementioned installation and positioning fixture for the rear door exterior trim panel frame. The method includes the following steps:

[0017] Insert the bolt connection holes on the exterior trim frame into the side panel studs of the vehicle body, pre-tighten the nuts, and pre-hung the exterior trim frame onto the side panel of the vehicle body.

[0018] The positioning fixture is snapped onto the outer trim frame by the snap-fit ​​plate, and the positioning fixture and the outer trim frame are positioned together to the side of the vehicle body by the first positioning pin.

[0019] The outer trim frame is adjusted to the preset position using positioning fixtures, and the nuts are tightened through the openings on the frame body to pre-fix the outer trim frame to the side of the vehicle body.

[0020] Remove the positioning fixtures, tighten the other nuts, and complete the positioning and assembly of the exterior trim frame.

[0021] The beneficial effects of the technical solution provided in this application include:

[0022] This application provides an installation positioning fixture and installation method for a tailgate exterior trim panel frame. The installation positioning fixture includes a frame body, snap-fit ​​plates, and a first positioning pin. The frame body has a semi-enclosed structure with an opening on one side for nesting and connecting the exterior trim panel frame. The frame body also has openings for matching bolt connection through holes on the exterior trim panel frame. Multiple snap-fit ​​plates are spaced apart, and each snap-fit ​​plate is fixed to the opening side of the frame body to fix the positioning fixture to the exterior trim panel frame. The first positioning pin is located at the bottom end of the frame body to position the positioning fixture to the vehicle body.

[0023] In practical use, the installation positioning fixture of this application includes a frame body, which has a semi-enclosed structure. One side of the frame body has an opening for nesting and connecting the exterior trim frame. The exterior trim frame can be placed inside the frame body through the opening. Multiple snap-fit ​​plates are provided to fix the positioning fixture to the exterior trim frame. Then, by using the first positioning pin of the installation positioning fixture, the entire assembly after the positioning fixture and the exterior trim frame are connected can be positioned to the vehicle body. The installation position of the exterior trim frame can be adjusted using the positioning fixture, which is beneficial to achieve precise positioning and assembly of the exterior trim frame and the vehicle body. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram from one perspective showing the positioning tooling, exterior panel frame, and vehicle body;

[0026] Figure 2 A schematic diagram showing the assembly of the positioning fixture and the exterior trim frame;

[0027] Figure 3 for Figure 2 A magnified view of a section of the card connector;

[0028] Figure 4 A schematic diagram of the positioning fixtures and the outer trim panel frame;

[0029] Figure 5 A schematic diagram from one perspective for positioning tooling, exterior panel frame, and vehicle body.

[0030] Figure label:

[0031] 1. Frame body; 2. Exterior trim frame; 3. First locating pin; 4. Vehicle body; 11. Opening; 12. Snap-fit ​​plate; 13. Second locating pin; 21. Bolt connection through hole; 22. Locating hole; 23. Snap-fit ​​groove; 24. Top edge; 25. Step surface; 31. Connecting plate; 40. Stud; 41. Taillight base plate locating hole; 111. First side plate; 112. Cover plate; 113. Second side plate; 114. Top plate; 1131. Locating edge. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] This application provides an installation positioning fixture and installation method for a tailgate exterior trim panel frame, which can solve the problem in related technologies where it is difficult to control the assembly position and ensure installation accuracy when assembling the tailgate exterior trim panel frame onto the vehicle body.

[0034] See Figures 1 to 4 As shown, one embodiment of this application provides an installation and positioning fixture for a tailgate exterior panel frame, including a frame body 1, snap-fit ​​plates 12, and a first positioning pin 3. The frame body 1 has a semi-enclosed structure, with an opening on one side for nesting and connecting the exterior panel frame 2, and an opening 11 on the frame body 1 for matching the bolt connection through hole 21 on the exterior panel frame 2. Multiple snap-fit ​​plates 12 are spaced apart, and each snap-fit ​​plate 12 is fixed to the opening side of the frame body 1 to fix the positioning fixture to the exterior panel frame 2. The first positioning pin 3 is located at the bottom end of the frame body 1 to position the positioning fixture to the vehicle body 4.

[0035] In practical use, the installation positioning fixture of this application includes a frame body 1, which has a semi-enclosed structure. One side of the frame body 1 has an opening for nesting and connecting the outer trim frame 2. The outer trim frame 2 can be placed inside the frame body 1 through the opening. Multiple snap-fit ​​plates 12 are provided so that the positioning fixture can be fixed to the outer trim frame 2 through the snap-fit ​​plates 12. Then, the first positioning pin 3 of the installation positioning fixture can be used to position the entire assembly of the positioning fixture and the outer trim frame 2 to the vehicle body 4. The installation position of the outer trim frame 2 can be adjusted by using the positioning fixture, which is conducive to achieving precise positioning and assembly of the outer trim frame 2 and the vehicle body 4.

[0036] like Figures 1 to 4As shown, in use, the frame body 1 has an opening 11 for matching the bolt connection through hole 21 on the exterior trim frame 2. The opening 11 facilitates the use of nuts to fix the exterior trim frame 2 to the fixing studs 40 on the vehicle body 4 via the bolt connection through hole 21. That is, the opening 11 on the frame body 1 provides space to tighten the welding studs 40 on the vehicle body 4 through the bolt connection through hole 21 on the exterior trim frame 2, thereby assembling the exterior trim frame 2 to the vehicle body 4. In some optional embodiments, the first locating pin 3 is connected and fixed to the bottom end of the frame body 1 via a connecting plate 31.

[0037] In some alternative embodiments, such as Figures 2 to 5 As shown, it also includes second positioning pins 13. Multiple second positioning pins 13 are spaced apart, and each second positioning pin 13 is fixedly mounted on the opening side of the frame body 1, used to position the positioning fixture to the outer trim panel frame 2. The second positioning pins 13 are matched with positioning holes 22 on the outer trim panel frame 2, facilitating the positioning of the installation positioning fixture to the outer trim panel frame 2. Furthermore, the outer trim panel frame 2 is provided with a snap-fit ​​groove 23, which matches the snap-fit ​​plate 12 of the installation positioning fixture. In actual use, the second positioning pins 13 can be used to position and align the installation positioning fixture with the outer trim panel frame 2. Then, the snap-fit ​​plate 12 of the installation positioning fixture is snapped and fixed into the snap-fit ​​groove 23, thus positioning and fixing the installation positioning fixture to the outer trim panel frame 2.

[0038] In some alternative embodiments, such as Figure 1As shown, there are two openings 11, which correspond to the bolt connection through holes 21 at both ends of the outer trim frame 2. In actual use, there can be four bolt connection through holes 21 on the outer trim frame 2, but two openings 11 can be opened on the frame body 1. The two openings 11 match the bolt connection through holes 21 at both ends of the outer trim frame 2. In actual use, first, the bolt connection through holes 21 on the outer trim frame 2 are inserted into the side studs 40 of the vehicle body 4, and the nuts are pre-tightened to pre-hang the outer trim frame 2 on the side of the vehicle body 4; then, the positioning fixture is snapped onto the outer trim frame 2 through the snap-fit ​​plate 12, and the positioning fixture and the outer trim frame 2 are positioned to the side of the vehicle body 4 by the first positioning pin 3; the positioning fixture is used to adjust the outer trim frame 2 to the preset position, and the frame is then used to fix the outer trim frame 2 to the preset position. Tighten the nuts in the openings 11 on the main body 1 to pre-fix the outer trim frame 2 to the side of the vehicle body 4. At this time, two openings 11 can be opened on the frame main body 1. The two openings 11 are respectively matched with the bolt connection through holes 21 set at both ends of the outer trim frame 2. Therefore, it is only necessary to connect the two bolt connection through holes 21 at both ends of the outer trim frame 2 to the vehicle body 4 through the studs 40. Then the positioning fixture can be removed, and the other nuts can be fixed to the side of the vehicle body 4 through the remaining bolt connection through holes 21. This method of first using the holes at both ends to pre-fix the outer trim frame 2 to the vehicle body 4 and then removing the fixture is convenient for operation. Then fixing the other holes can improve work efficiency.

[0039] In practical use, after the outer trim frame 2 is pre-attached to the side panel of the vehicle body 4, the positioning fixture is then fixedly connected to the outer trim frame 2 as a whole. The positioning fixture is equipped with a first positioning pin 3, which matches the positioning hole 41 of the taillight base plate on the vehicle body 4. Using the first positioning pin 3, the whole assembly after the positioning fixture and the outer trim frame 2 are connected can be positioned on the vehicle body 4. Then, the position of the outer trim frame 2 can be adjusted using the positioning fixture. Specifically, at this time, the bolt connection through hole 21 on the outer trim frame 2 has been inserted into the side panel stud 40 of the vehicle body 4, the nut has been pre-tightened, and the outer trim frame 2 is pre-attached to the side panel of the vehicle body 4. The positioning fixture is connected to the outer trim frame 2, and the first positioning pin 3 on the positioning fixture is inserted and positioned with the vehicle body 4. Therefore, by moving the positioning fixture, the position of the outer trim frame 2 can be accurately observed, and the outer trim frame 2 can be adjusted to the appropriate assembly position, thereby achieving precise positioning and assembly between the outer trim frame 2 and the vehicle body 4.

[0040] In some alternative embodiments, such as Figure 4 and Figure 5As shown, the frame body 1 includes a first side plate 111, a cover plate 112 connected to the first side plate 111, and a second side plate 113 connected to the cover plate 112. One side of the second side plate 113 protrudes from the end of the cover plate 112, and a platform for easy gripping is formed between the second side plate 113 and the cover plate 112. The first side plate 111 is arc-shaped, and the first side plate 111 gradually widens from one side to the other along its length.

[0041] In practical use, the frame body 1 includes a first side plate 111, a cover plate 112, and a second side plate 113. These three components form a semi-enclosed structure for the frame body 1, allowing it to be nested and connected to the outer trim frame 2. One side of the second side plate 113 protrudes from the end of the cover plate 112, creating a platform between the second side plate 113 and the cover plate 112 for easy gripping. This platform facilitates gripping by installers, making it easier to adjust the position of the outer trim frame 2 using tooling and ensuring installation accuracy. The positioning tooling of this application effectively solves the problem of trim assembly position deviation caused by the poor accuracy of the self-positioning studs 40, ensuring the gap surface difference between the tailgate outer trim panel and adjacent interfaces, and improving the perceived quality of the rear of the vehicle.

[0042] And, as Figure 4 and Figure 5 As shown, the frame body 1 adopts a contour-following design, and the overall structure is similar to the shape of the outer trim frame 2. The first side plate 111 is arc-shaped, and the first side plate 111 gradually widens from one side to the other along the length direction to fit the shape and structure of the outer trim frame 2.

[0043] In some alternative embodiments, such as Figure 4 and Figure 5 As shown, a fan-shaped top plate 114 is fixedly provided at one end of the first side plate 111 to match the top edge 24 of the outer trim frame 2. The inner wall of the fan-shaped top plate 114 matches the top edge 24 of the outer trim frame 2, facilitating the positioning between the outer trim frame 2 and the tooling. Furthermore, a positioning edge 1131 is provided at one end of the second side plate 113, which is used to position the positioning tooling to the outer trim frame 2. The outer trim frame 2 has a stepped surface 25, and the positioning edge 1131 of the positioning tooling can be adapted to the stepped surface 25, facilitating the positioning and fixing of the outer trim frame 2 and the tooling.

[0044] In some optional embodiments, the ends of the first side plate 111, the second side plate 113 and the first positioning pin 3 are all provided with rounded chamfers. The rounded chamfers can prevent the parts from scratching each other and avoid wear when positioning and assembling between the structures.

[0045] In summary, the installation positioning fixture of this application includes a frame body 1, a snap-fit ​​plate 12, and a first positioning pin 3. The frame body 1 has a semi-enclosed structure, with an opening on one side for nesting and connecting the outer trim frame 2. The frame body 1 also has an opening 11 for matching the bolt connection through hole 21 on the outer trim frame 2. Multiple snap-fit ​​plates 12 are spaced apart, and each snap-fit ​​plate 12 is fixed to the opening side of the frame body 1 to fix the positioning fixture to the outer trim frame 2. The first positioning pin 3 is located at the bottom of the frame body 1 to position the positioning fixture to the vehicle body 4.

[0046] In practical use, the installation positioning fixture of this application includes a frame body 1, which has a semi-enclosed structure. One side of the frame body 1 has an opening for nesting and connecting the outer trim frame 2. The outer trim frame 2 can be placed inside the frame body 1 through the opening. Multiple snap-fit ​​plates 12 are provided so that the positioning fixture can be fixed to the outer trim frame 2 through the snap-fit ​​plates 12. Then, the first positioning pin 3 of the installation positioning fixture can be used to position the entire assembly of the positioning fixture and the outer trim frame 2 to the vehicle body 4. The installation position of the outer trim frame 2 can be adjusted by using the positioning fixture, which is conducive to achieving precise positioning and assembly of the outer trim frame 2 and the vehicle body 4.

[0047] See Figures 1 to 5 As shown, another aspect of this application provides a method for installing a rear door exterior trim panel frame. Utilizing the aforementioned installation and positioning fixture for the rear door exterior trim panel frame, the method includes the following steps:

[0048] S1. Insert the bolt connection through hole 21 on the outer trim frame 2 into the side wall stud 40 of the vehicle body 4, pre-tighten the nut, and pre-hang the outer trim frame 2 on the side wall of the vehicle body 4.

[0049] S2. The positioning fixture is snapped onto the outer trim frame 2 by the snap-fit ​​plate 12, and the positioning fixture and the outer trim frame 2 are positioned together to the side of the vehicle body 4 by the first positioning pin 3.

[0050] S3. Use positioning fixtures to adjust the outer trim frame 2 to the preset position, and tighten nuts through the openings 11 on the frame body 1 to pre-fix the outer trim frame 2 to the side of the vehicle body 4.

[0051] S4. Remove the positioning fixture, tighten the other nuts, and complete the positioning and assembly of the outer trim panel frame 2.

[0052] In the description of this application, it should be noted that the terms "upper," "lower," 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 application and simplifying the description, and do not indicate or imply that the device or element 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0053] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fixture for installing and positioning the frame of a rear door exterior trim panel, characterized in that, include: The frame body (1) has a semi-enclosed structure, and one side of it is provided with an opening for nesting and connecting the outer trim frame (2). The frame body (1) is provided with an opening (11) for matching the bolt connection through hole (21) provided on the outer trim frame (2). The snap-fit ​​plate (12) is provided at intervals. Each snap-fit ​​plate (12) is fixed to the opening side of the frame body (1) and is used to fix the positioning fixture to the outer trim frame (2). The first positioning pin (3) is located at the bottom end of the frame body (1) and is used to position the positioning fixture to the vehicle body (4). The installation of the rear door exterior trim panel frame is performed using the aforementioned installation and positioning fixture. The installation method includes the following steps: Insert the bolt connection through hole (21) on the exterior trim frame (2) into the side wall stud (40) of the vehicle body (4), pre-tighten the nut, and pre-hung the exterior trim frame (2) onto the side wall of the vehicle body (4); The positioning fixture is snapped onto the outer trim frame (2) by the snap-fit ​​plate (12), and the positioning fixture and the outer trim frame (2) are positioned together to the side of the vehicle body (4) by the first positioning pin (3); The outer trim frame (2) is adjusted to the preset position using the positioning fixture, and the nuts are tightened through the opening (11) on the frame body (1) to pre-fix the outer trim frame (2) to the side wall of the vehicle body (4); Remove the positioning fixtures, tighten the other nuts, and complete the positioning and assembly of the exterior panel frame (2).

2. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 1, characterized in that: It also includes a second positioning pin (13), which is provided at intervals. Each second positioning pin (13) is fixedly provided on the opening side of the frame body (1) for positioning the positioning fixture to the outer trim frame (2).

3. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 1, characterized in that: There are two openings (11), and the two openings (11) correspond to the bolt connection through holes (21) provided at both ends of the outer trim frame (2).

4. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 1, characterized in that: The frame body (1) includes a first side plate (111), a cover plate (112) connected to the first side plate (111), and a second side plate (113) connected to the cover plate (112). One side of the second side plate (113) protrudes from the end of the cover plate (112), and a platform for easy gripping is formed between the second side plate (113) and the cover plate (112).

5. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 4, characterized in that: The first side plate (111) is arc-shaped, and the first side plate (111) gradually widens from one side to the other along the length direction.

6. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 5, characterized in that: One end of the first side panel (111) is fixedly provided with a fan-shaped top plate (114) for matching the top edge (24) of the outer trim frame (2).

7. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 5, characterized in that: The end of one side of the second side plate (113) is provided with a positioning edge (1131), which is used to position the positioning fixture to the outer trim frame (2).

8. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 1, characterized in that: The first positioning pin (3) is connected and fixed to the bottom end of the frame body (1) through the connecting plate (31).

9. The installation and positioning fixture for the frame of the rear door exterior trim panel as described in claim 4, characterized in that: The ends of the first side plate (111), the second side plate (113), and the first positioning pin (3) are all provided with rounded chamfers.

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