A testing tool for installing the front door frame of a car body-in-white

By combining the limiting plate and the clamping plate, the problem of the existing testing aids being unable to adjust the position of the positioning pin is solved, enabling flexible adaptation to different vehicle models and improving the applicability and convenience of the testing aids.

CN224435270UActive Publication Date: 2026-06-30HUBEI CHUANGSHENG TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI CHUANGSHENG TECHNOLOGY CO LTD
Filing Date
2025-08-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing automotive body-in-white front door frame installation and testing tools cannot flexibly adjust the position of the positioning pins according to the vehicle model structure, resulting in insufficient compatibility.

Method used

The system employs a combination of limit plate one, limit plate two, and a clamping plate. By adjusting the connection state of the limit plates and the angle of the mounting plate, the position of the positioning pin can be flexibly adjusted. Combined with the pushing action of the spring, this ensures the stable movement of the fixing ring and the rapid adjustment of the positioning groove.

Benefits of technology

It enables flexible adjustment of the positioning hole position according to different vehicle models, avoiding the need to replace auxiliary tools and improving the applicability and convenience of testing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224435270U_ABST
Patent Text Reader

Abstract

This utility model discloses an auxiliary tool for installing and testing the front door frame of an automotive body-in-white, relating to the field of automotive body-in-white welding technology. It includes a simulated column and a simulated block. The simulated column has an internal mounting groove, and a support column is rotatably connected to the inner wall of the mounting groove. A fixing ring is sleeved on the outer surface of the support column, and a positioning ring is fixedly installed on the outer surface of the fixing ring. A limiting plate is fixedly installed on the outer surface of the positioning ring. Through the cooperation between the limiting plate, the limiting plate, and the locking plate, the locking plate disengages from the interior of the groove. Rotating the mounting plate allows for adjustment of its angle, and pulling the mounting plate outwards adjusts the distance between the positioning pin and the simulated column. This allows for adjustment of the positioning pin's position according to the position of the positioning hole on different vehicle models, without the need to replace the tool, making it more convenient to use. This tool facilitates adjustment of the positioning pin's position according to different vehicle models.
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Description

Technical Field

[0001] This utility model relates to the field of automotive body-in-white welding technology, specifically an auxiliary tool for the installation and testing of the front door frame of an automotive body-in-white. Background Technology

[0002] The front door frame of a car body-in-white is the core supporting structure of the door. It is mainly welded together from components such as the outer door panel, inner door panel, anti-collision beam, and reinforcing plate. The outer door panel forms the outline of the door, the inner door panel provides support for the installation of components such as windows and door locks, the anti-collision beam is arranged laterally to enhance side collision protection, and the reinforcing plate improves the strength of key parts. It is an important safety and functional component of the body-in-white.

[0003] A search revealed Chinese patent CN213812077U, which discloses an auxiliary tool for installing and testing the front door frame of an automotive body-in-white. This tool belongs to the field of automotive body-in-white welding technology. The tool includes a main body, a positioning component, and a clamping component. The main body includes a simulated B-pillar exterior trim panel and a simulated upper side beam trim panel perpendicular to its upper end. The simulated B-pillar exterior trim panel is attached to the B-pillar sheet metal, and the simulated upper side beam trim panel is attached to the upper side beam. A positioning component and a clamping component are provided on one side of the simulated B-pillar exterior trim panel. Multiple positioning holes are provided on the surface of the B-pillar sheet metal, which cooperate with the positioning component. The clamping component clamps the side of the B-pillar sheet metal away from the front door frame. The beneficial effects of this invention are that the auxiliary tool simulates the positions of the B-pillar exterior trim panel and the upper side beam trim panel. The overall structure is simple, the positioning is firm and stable, and it can accurately measure the gap between the front door and the B-pillar exterior trim panel and the upper side beam trim panel, ensuring that the front door frame gap meets DTS requirements and improving the pass rate of the front door rain test.

[0004] The above solution utilizes the cooperation of positioning components and positioning holes. In use, the clamping component clamps the B-pillar sheet metal on the side away from the front door frame. Then, the positioning component is connected to the inside of the positioning hole. By simulating the position of the B-pillar outer trim panel and the upper side beam trim panel, the gap between the front door and the B-pillar outer trim panel and the upper side beam trim panel can be measured. However, the positioning components such as the positioning pins in the above solution rely on the positioning holes in specific positions and cannot adjust the position of the positioning pins. When the vehicle structure is adjusted and the position of the positioning holes changes, it needs to be refitted.

[0005] To address these issues, we provide an auxiliary tool for testing and installing the front door frame of a car body-in-white. Utility Model Content

[0006] 1) Technical problems to be solved

[0007] This utility model proposes an auxiliary tool for installing and testing the front door frame of an automobile body-in-white. Through the cooperation between the first limiting plate, the second limiting plate, and the clamping plate, it solves the problem of not being able to adjust the position of the positioning pin.

[0008] (ii) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary tool for installing and testing the front door frame of an automobile body-in-white, comprising a simulated column and a simulated block, wherein a positioning block is fixedly installed on the outer surface of the simulated column, and a clamping assembly is installed on one side of the positioning block;

[0010] The simulated column has an internal mounting groove, and a support column is rotatably connected to the inner wall of the mounting groove. A fixing ring is sleeved on the outer surface of the support column, and a positioning ring is fixedly installed on the outer surface of the fixing ring. A limit plate is fixedly installed on the outer surface of the positioning ring. An installation plate is slidably connected inside the fixing ring, and a positioning pin is fixedly installed inside the installation plate. A positioning groove is opened inside the installation plate, and a positioning plate is slidably connected inside the positioning groove.

[0011] A second positioning ring is fixedly installed on the inner wall of the mounting groove, and a second limiting plate is fixedly installed on the outer surface of the second positioning ring.

[0012] Furthermore, the outer surface of the first limiting plate is slidably connected to the outer surface of the second limiting plate, the first limiting plate is arranged in a ring array outside the first positioning ring, and the second limiting plate is arranged in a ring array outside the second positioning ring.

[0013] Furthermore, the fixed ring has a sliding groove inside, the outer surface of the mounting plate is slidably connected to the inner wall of the sliding groove, and the outer surface of the positioning plate is fixedly installed to the inner wall of the sliding groove.

[0014] Furthermore, the outer surface of the mounting plate is slidably connected to the outer surface of the limiting plate 2, and a clamping plate is fixedly installed inside the mounting plate, with the outer surface of the clamping plate slidably connected to the inside of the support column.

[0015] Furthermore, a movable rod is fixedly installed on the outer surface of the fixed ring, a connecting plate is fixedly installed on the inner wall of the mounting groove, the outer surface of the movable rod is slidably connected to the inside of the connecting plate, and a baffle is fixedly installed at one end of the movable rod.

[0016] Furthermore, a spring is fitted around the outside of the moving rod, with one end of the spring fixedly installed to the outer surface of the fixed ring and the other end of the spring fixedly installed to the outer surface of the connecting plate.

[0017] (iii) Beneficial effects:

[0018] Compared with existing technologies, this automotive body-in-white front door frame installation and testing aid has the following advantages:

[0019] I. This automotive body-in-white front door frame installation and testing auxiliary tool, through the cooperation between limiting plate one, limiting plate two, and the clamping plate, adjusts the positioning pin according to the position of the positioning hole. First, limit plate one and limit plate two are disconnected, and the clamping plate is disengaged from the inside of the slide groove. At this time, rotating the mounting plate can adjust the angle of the mounting plate. Then, pulling the mounting plate outward can adjust the distance between the positioning pin and the simulated column. At this time, the position of the positioning pin can be adjusted according to the position of the positioning hole on different vehicle models. There is no need to replace the auxiliary tool, making it more convenient to use. It realizes the adjustment of the positioning pin position and is beneficial for adjusting the position of the positioning pin according to different vehicle models.

[0020] 2. The front door frame of the car body-in-white is equipped with a testing fixture. By setting up components such as springs, the springs can push the fixed ring to move. Under the push of the springs, the first limiting plate and the second limiting plate come into contact, and the clamping plate comes into contact with the inside of the sliding groove. Since the second limiting plate cannot rotate, the mounting plate can be quickly fixed under the fixing action of the fixed ring. Adjusting the position of the positioning groove only requires controlling the movement of the fixed ring. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a structural diagram of the present utility model;

[0023] Figure 2 This is a structural diagram of the simulated column component of this utility model;

[0024] Figure 3 This is a diagram illustrating the internal structure of the simulated column of this utility model;

[0025] Figure 4 This is a structural diagram of the support column component of this utility model;

[0026] Figure 5 This is a structural diagram of the two components of the positioning ring of this utility model.

[0027] In the diagram: 1. Simulated column; 2. Simulated block; 3. Positioning block; 4. Clamp assembly; 5. Mounting slot; 6. Support column; 7. Fixing ring; 8. Positioning ring one; 9. Limiting plate one; 10. Mounting plate; 11. Positioning pin; 12. Positioning slot; 13. Positioning plate; 14. Positioning ring two; 15. Limiting plate two; 16. Slide groove; 17. Clamping plate; 18. Moving rod; 19. Connecting plate; 20. Baffle; 21. Spring. Detailed Implementation

[0028] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: an auxiliary tool for installing and testing the front door frame of a car body-in-white, including a simulated column 1 and a simulated block 2. A positioning block 3 is fixedly installed on the outer surface of the simulated column 1, and a clamping assembly 4 is installed on one side of the positioning block 3. The simulated column 1 and the simulated block 2 can simulate the position of the B-pillar exterior trim panel and the upper side beam trim panel of the vehicle. During installation, the clamping assembly 4 can fix the entire auxiliary tool to the vehicle body. The clamping assembly 4 mainly consists of a handle and a rotating clamp, and can be stably fixed to the vehicle body by using rigid clamping.

[0030] The simulated column 1 has an installation groove 5 inside. A support column 6 is rotatably connected to the inner wall of the installation groove 5. A fixing ring 7 is sleeved on the outer surface of the support column 6. The fixing ring 7 can move up and down and rotate outside the support column 6. The support column 6 can limit the movement of the fixing ring 7 along the installation groove 5. A moving rod 18 is fixedly installed on the outer surface of the fixing ring 7. A connecting plate 19 is fixedly installed on the inner wall of the installation groove 5. The outer surface of the moving rod 18 is slidably connected to the inside of the connecting plate 19. A baffle 20 is fixedly installed at one end of the moving rod 18. The position of the fixing ring 7 can be controlled by the moving rod 18. By pulling or rotating the moving rod 18, the fixing ring 7 can be rotated or moved linearly. The auxiliary limiting of the connecting plate 19 increases the stability of the fixing ring 7 when it moves and prevents the fixing ring 7 from falling off.

[0031] A spring 21 is fitted around the outside of the moving rod 18. One end of the spring 21 is fixedly installed on the outer surface of the fixed ring 7, and the other end of the spring 21 is fixedly installed on the outer surface of the connecting plate 19. The spring 21 can push the fixed ring 7 to move into the mounting groove 5, and can automatically control the position of the fixed ring 7.

[0032] A positioning ring 8 is fixedly installed on the outer surface of the fixed ring 7. A limiting plate 9 is fixedly installed on the outer surface of the positioning ring 8. A positioning ring 14 is fixedly installed on the inner wall of the mounting groove 5. A limiting plate 15 is fixedly installed on the outer surface of the positioning ring 14. The outer surfaces of the limiting plate 9 and the limiting plate 15 are slidably connected. The limiting plates 9 are arranged in a ring array outside the positioning ring 8, and the limiting plates 15 are arranged in a ring array outside the positioning ring 14. The limiting plates 9 and 15 can contact each other. When connected, a set of limiting plates 9 enters between adjacent limiting plates 15. At this time, the spring 21 applies an external thrust to the fixed ring 7 and the positioning ring 8. Therefore, the fixed ring 7 will not rotate under the limitation of the limiting plate 15, and the movement of the fixed ring 7 can be limited.

[0033] The fixed ring 7 has a sliding connection to the mounting plate 10, and a positioning pin 11 is fixedly installed inside the mounting plate 10. The fixed ring 7 has a sliding groove 16 inside, and the outer surface of the mounting plate 10 is slidably connected to the inner wall of the sliding groove 16. The mounting plate 10 can slide inside the sliding groove 16. At this time, one end of the mounting plate 10 can control the movement of the positioning pin 11, and the distance between the positioning pin 11 and the simulation block 2 can be adjusted.

[0034] The mounting plate 10 has a positioning groove 12 inside, and a positioning plate 13 is slidably connected inside the positioning groove 12. The outer surface of the positioning plate 13 is fixedly installed with the inner wall of the slide groove 16. When the positioning plate 13 is disengaged from the inside of the positioning groove 12, the mounting plate 10 can slide inside the slide groove 16. At this time, the position of the mounting plate 10 can be adjusted by pulling the fixing ring 7. The positioning groove 12 is arranged in a straight line inside the mounting plate 10. Multiple sets of positioning grooves 12 can be used to adjust the mounting plate 10 to different positions.

[0035] The outer surface of the mounting plate 10 is slidably connected to the outer surface of the limiting plate 15. A clamping plate 17 is fixedly installed inside the mounting plate 10. The outer surface of the clamping plate 17 is slidably connected to the inside of the support column 6. The clamping plate 17 can provide auxiliary support and limit the mounting plate 10. When the mounting plate 10 rotates under the connection of the clamping plate 17, it can control the rotation of the support column 6.

[0036] Working principle: During the test, the clamp assembly 4 is used to fix the simulation block 2 and the simulation column 1 to the vehicle body, and the positioning pin 11 is inserted into the vehicle positioning hole. At this time, the gap of the front door frame of the vehicle can be detected.

[0037] When adjusting the position of the positioning pin 11 according to the position of different positioning holes, the fixed ring 7 is pulled outward by the moving rod 18, so that the first limiting plate 9 and the second limiting plate 15 are disengaged, and the positioning plate 13 is disengaged from the positioning groove 12. At this time, the mounting plate 10 can rotate in a circle and move linearly. After adjusting the contact, the fixed ring 7 is reset under the action of the spring 21. At this time, the second limiting plate 15 contacts the first limiting plate 9 and can limit the rotation of the fixed ring 7. The positioning plate 13 enters the interior of the positioning groove 12 and can limit the linear movement of the mounting plate 10.

[0038] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0039] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A testing fixture for the installation of a front door frame of a car body-in-white, comprising a simulated column (1) and a simulated block (2), characterized in that: A positioning block (3) is fixedly installed on the outer surface of the simulated column (1), and a clamp assembly (4) is installed on one side of the positioning block (3); The simulated column (1) has an installation groove (5) inside. The inner wall of the installation groove (5) is rotatably connected to a support column (6). A fixing ring (7) is sleeved on the outer surface of the support column (6). A positioning ring (8) is fixedly installed on the outer surface of the fixing ring (7). A limit plate (9) is fixedly installed on the outer surface of the positioning ring (8). An installation plate (10) is slidably connected inside the fixing ring (7). A positioning pin (11) is fixedly installed inside the installation plate (10). A positioning groove (12) is opened inside the installation plate (10). A positioning plate (13) is slidably connected inside the positioning groove (12). The inner wall of the mounting groove (5) is fixedly installed with a positioning ring two (14), and the outer surface of the positioning ring two (14) is fixedly installed with a limiting plate two (15).

2. The automotive body-in-white front door frame installation and testing auxiliary tool according to claim 1, characterized in that: The outer surface of the first limiting plate (9) is slidably connected to the outer surface of the second limiting plate (15). The first limiting plate (9) is arranged in a ring array outside the first positioning ring (8), and the second limiting plate (15) is arranged in a ring array outside the second positioning ring (14).

3. The auxiliary tool for installing and testing the front door frame of a car body-in-white according to claim 1, characterized in that: The fixed ring (7) has a sliding groove (16) inside. The outer surface of the mounting plate (10) is slidably connected to the inner wall of the sliding groove (16). The outer surface of the positioning plate (13) is fixedly installed to the inner wall of the sliding groove (16).

4. The auxiliary tool for installing and testing the front door frame of a car body-in-white according to claim 1, characterized in that: The outer surface of the mounting plate (10) is slidably connected to the outer surface of the limiting plate (15), and a clamping plate (17) is fixedly installed inside the mounting plate (10). The outer surface of the clamping plate (17) is slidably connected to the inside of the support column (6).

5. The auxiliary tool for installing and testing the front door frame of a car body-in-white according to claim 1, characterized in that: A movable rod (18) is fixedly installed on the outer surface of the fixed ring (7), and a connecting plate (19) is fixedly installed on the inner wall of the mounting groove (5). The outer surface of the movable rod (18) is slidably connected to the inside of the connecting plate (19), and a baffle (20) is fixedly installed at one end of the movable rod (18).

6. The auxiliary tool for installing and testing the front door frame of a car body-in-white according to claim 5, characterized in that: The movable rod (18) is fitted with a spring (21). One end of the spring (21) is fixedly installed on the outer surface of the fixed ring (7), and the other end of the spring (21) is fixedly installed on the outer surface of the connecting plate (19).