Automobile roof inversion detection device and method

By designing an inverted inspection device, using a support frame, positioning components, and clamping components, the inverted inspection of the roof substrate and assembly was achieved, solving the problems of inconsistent inspection postures and high tooling costs, improving inspection efficiency, and reducing the scrap rate of parts.

CN120927315BActive Publication Date: 2026-08-04CHERY AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHERY AUTOMOBILE CO LTD
Filing Date
2025-09-22
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing automotive roof inspection equipment cannot perform inverted inspection, resulting in inconsistencies between the inspection results and the actual vehicle mounting posture. Furthermore, existing inverted inspection equipment cannot inspect the roof substrate, increasing the cost of the inspection tool.

Method used

An inverted detection device for an automobile roof was designed, comprising a support frame, a roof plate, a positioning component, a clamping component, and a detection block. The inverted detection of the roof substrate and assembly is achieved through the positioning component and the clamping component. The device is fixed by magnetic attraction and clamping structure, and the positioning module is alternately positioned to adapt to different states.

Benefits of technology

This achieves consistency in the inverted inspection posture of the roof substrate and assembly, reducing the scrap rate of parts, improving production efficiency, and lowering the cost of inspection tools.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of car roof inversion detection device and method, it is related to automobile detection device field, and detection device includes support frame, support frame top is equipped with top plate, and top plate lower side is equipped with positioning assembly, pressing assembly and detection block;Positioning assembly includes first positioning module and second positioning module, first positioning module is used to position roof base material top surface, and second positioning module is used to position skylight frame top surface, when second positioning module is in positioning state, first positioning module switches to non-positioning state;Pressing assembly includes multiple first pressing module and second pressing module, first pressing module is used to press tightly roof base material or roof assembly inner circle bottom surface, and second pressing module is used to press tightly roof base material or roof assembly outer circle bottom surface.The application detects in inversion mode, realizes the detection posture of roof and general assembly assembly posture keeps consistent;While roof base material can be detected, reduce the scrap rate of parts, improve production efficiency.
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Description

Technical Field

[0001] This invention relates to the field of automotive testing devices, and more particularly to a device and method for testing an inverted automotive roof. Background Technology

[0002] As a crucial component of the car's interior, the headliner's fit with surrounding parts directly impacts the customer's perception of the overall vehicle quality. Due to its large size, complex manufacturing process, and long production cycle, the inspection and process monitoring of headliner components are particularly important. Currently, headliner inspection mainly involves two aspects: (1) Most roof inspection tools are placed upright. This inspection method is inconsistent with the actual posture of the roof when it is installed on the vehicle. The actual roof is installed upside down on the roof sheet metal. Therefore, the upright inspection method cannot reproduce all the problems of the parts. This inspection method affects the evaluation of the roof matching status.

[0003] (2) Although some methods use an inverted roof inspection method, for example, an inverted roof inspection mold is disclosed in the prior art, which includes an inspection frame, a fixture base plate on the top of the inspection frame, and a simulated sheet metal test frame with a main driver side A-pillar profiling block, a main driver side B-pillar profiling block, a main driver side C-pillar profiling block, etc., and a headlight profiling block and a center light profiling block on the test frame; although this solution can realize the inverted inspection of the roof, it ultimately realizes the inspection of the roof assembly and cannot perform the inspection of the roof substrate. Since the size of the roof substrate directly affects the size of the roof assembly after assembly with the roof fabric, the roof substrate needs to be inspected first. The prior art requires the separate development of a process fixture for the roof substrate, which increases the cost of the fixture. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an inverted inspection device and method for automotive roofs, which performs inspection in an inverted manner to ensure that the inspection posture of the roof is consistent with the final assembly posture; at the same time, it can inspect the roof substrate, reduce the scrap rate of parts, and improve production efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: In a first aspect, embodiments of the present invention provide a car roof inversion detection device, including a support frame, a top plate at the top of the support frame, and a positioning component, a pressing component, and a detection block installed on the lower side of the top plate; The positioning component includes a first positioning module and a second positioning module. The first positioning module is used to position the top surface of the ceiling substrate, and the second positioning module is used to position the top surface of the skylight frame. When the second positioning module is in the positioning state, the first positioning module switches to the non-positioning state. The clamping assembly includes multiple first clamping modules and second clamping modules. The first clamping modules are used to clamp the bottom surface of the inner ring of the roof substrate or roof assembly, and the second clamping modules are used to clamp the bottom surface of the outer ring of the roof substrate or roof assembly. The detection block is used to detect the roof substrate or roof assembly from the outside.

[0006] As a further implementation, a window is provided at the center of the top plate, and the first positioning module and the second positioning module are alternately distributed around the periphery of the window.

[0007] As a further implementation, multiple positioning reference surfaces for installing the first clamping module are provided on the periphery of the window; The first clamping module is symmetrically distributed with respect to the window in both the X and Y directions.

[0008] As a further implementation, the first positioning module includes a first mounting base, a positioning block, and a fixing block, wherein the positioning block is rotatably connected to the first mounting base; In the positioning state, the positioning block is in contact with the top surface of the ceiling substrate; in the non-positioning state, the positioning block is flipped over and adsorbed and fixed with the fixing block.

[0009] As a further implementation, the second positioning module includes a second mounting base and a magnetic suction component fixed to the top of the second mounting base.

[0010] As a further implementation, the first clamping module is disposed inside the positioning component, and the first clamping module and the second clamping module respectively adopt a clamping structure.

[0011] As a further implementation, the pressure head of the first clamping module is equipped with an adjustment mechanism to adjust the clamping force.

[0012] As a further implementation, the pressure head of the second clamping module has a knife-shaped structure.

[0013] As a further implementation, a main locating pin and a secondary locating pin are also included, wherein the main locating pin is used to locate one end of the ceiling substrate or ceiling assembly, and the secondary locating pin is used to locate the other end of the ceiling substrate or ceiling assembly.

[0014] Secondly, embodiments of the present invention also provide a method for detecting an inverted car roof, employing the aforementioned detection device, comprising: First, the ceiling substrate is placed on the lower surface of the ceiling panel and positioned and clamped; the inspection block is used to inspect the installed ceiling substrate. After the ceiling substrate passes inspection, the first positioning module flips and switches to the non-positioning state; the skylight frame is then installed and positioned by the second positioning module. The roof fabric is wrapped around the roof base material and the outside of the sunroof frame, and the assembled roof assembly is pressed together by a clamping component; then the inspection block inspects the roof assembly.

[0015] The beneficial effects of this invention are as follows: (1) The positioning component, clamping component and detection block of the present invention are all installed on the lower surface of the top plate. The positioning component and clamping component work together to stably fix the parts and realize inverted detection. The positioning component includes a first positioning module and a second positioning module. The first positioning module is used for positioning the roof substrate, and the second positioning module is used for positioning the sunroof frame of the roof assembly. When the second positioning module is in the positioning state, the first positioning module switches to the non-positioning state. The above structure enables the detection device to detect both the roof substrate and the roof assembly, reduce the scrap rate of parts and improve production efficiency.

[0016] (2) The clamping assembly of the present invention includes a first clamping module and a second clamping module. The first clamping module is symmetrically distributed at the window of the top plate and can clamp and fix from the ceiling substrate and the inner ring of the ceiling assembly. The second clamping module can clamp and fix from the ceiling substrate and the outer ring of the ceiling assembly. The first clamping module and the second clamping module adopt different clamping structures to ensure effective fixation of the parts for inverted testing.

[0017] (3) The first positioning module and the second positioning module of the present invention are alternately set to achieve adsorption and fixation of the parts based on magnetic attraction. When the sunroof frame is installed, the second positioning module is used for positioning. In order to avoid interference, the positioning block of the first positioning module flips and detaches from the roof substrate. It can be effectively positioned whether it is the roof substrate state or the roof assembly state. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0019] Figure 1 This is a schematic diagram of the detection device according to one or more embodiments of the present invention; Figure 2 This is a schematic diagram of the top plate bottom surface installation according to one or more embodiments of the present invention; Figure 3 This is a schematic diagram of the installation of the ceiling substrate and the ceiling plate according to one or more embodiments of the present invention; Figure 4 This is a schematic diagram of the installation of the roof assembly and roof plate according to one or more embodiments of the present invention; Figure 5 This is an isometric view of the roof assembly and roof panel installation according to one or more embodiments of the present invention; Figure 6 This is a schematic diagram of the positioning state of the first positioning module according to one or more embodiments of the present invention; Figure 7 This is a schematic diagram of the non-positioning state of the first positioning module according to one or more embodiments of the present invention; Figure 8 This is a schematic diagram of the installation of the main locating pin according to one or more embodiments of the present invention.

[0020] The components are as follows: 1. Support frame; 2. Walking wheel; 3. Support leg; 4. Top plate; 5. Ceiling base material; 6. Ceiling fabric; 7. Skylight frame; 8. First positioning module; 9. Second positioning module; 10. First clamping module; 11. Second clamping module; 12. Detection block; 13. Main positioning pin; 14. Window; 15. First mounting base; 16. Positioning block; 17. Fixing block; 18. Second mounting base; 19. Magnetic suction component; 20. Adjusting nut; 21. First clamp seat; 22. Clamp arm; 23. Clamp handle; 24. First pressure head; 25. Screw; 26. Spring; 27. Second clamp seat; 28. Second pressure head. Detailed Implementation

[0021] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In the description of this invention, terms such as "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] For ease of description, the words "upper" and "lower" appearing in this invention only indicate that they are consistent with the upper and lower directions of the accompanying drawings and do not limit the structure. They are merely for the purpose of facilitating the description of this invention and simplifying the description, and do not indicate or imply that the device or component 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 invention.

[0023] Example 1: The headliner assembly includes a headliner base material 5, a sunroof frame 7, and a headliner fabric 6. This embodiment provides an inverted headliner detection device, capable of detecting the headliner base material 5 and also detecting the assembled headliner assembly; such as Figure 1As shown, the testing device includes a support frame 1, with multiple wheels 2 mounted on the bottom of the support frame 1 to allow the testing device to move. Simultaneously, multiple height-adjustable support legs 3 are also installed on the bottom of the support frame 1 to ensure stable support during ceiling installation and testing. A top plate 4 is mounted on the top of the support frame 1. A positioning component, a clamping component, and a testing block 12 are arranged on the lower surface of the top plate 4. The positioning component and the clamping component fix the ceiling substrate 5 and the ceiling assembly, thereby enabling inverted testing through the testing block 12.

[0024] The detection device in this embodiment can detect both the roof substrate 5 and the roof assembly, and the detection block 12 is shared by both. The specific structure of the detection block 12 is the prior art, and it includes at least an A-pillar detection block, a B-pillar detection block, a C-pillar detection block, a windshield detection block, a sunshade detection block, a side door opening detection block, and a rear door opening detection block.

[0025] The positioning assembly includes a first positioning module 8 and a second positioning module 9, wherein the first positioning module 8 is used for positioning the ceiling substrate 5, and the second positioning module 9 is used for positioning the ceiling assembly, so as to achieve effective positioning of the ceiling in different installation states. The clamping assembly includes a first clamping module 10 and a second clamping module 11, wherein the first clamping module 10 is used to clamp the inner ring of the ceiling substrate 5 or the ceiling assembly, and the second clamping module 11 is used to clamp the outer ring of the ceiling substrate 5 or the ceiling assembly.

[0026] Specifically, such as Figure 2 As shown, a window 14 is provided at the center of the top plate 4, which can both reduce weight and facilitate the installation of the ceiling. In this embodiment, the window 14 is rectangular; multiple positioning references are provided on the edge of the window 14 for installing the first clamping module 10; the first clamping module 10 is symmetrically arranged in both the long side direction (X direction) and the short side direction (Y direction) of the window 14, so that the first clamping module 10 forms a stable clamping effect from the inside to the outside from the installation position of the skylight frame 7 of the ceiling, ensuring balanced force.

[0027] like Figure 2 As shown, the positioning components are located outside the first pressing module 10, and multiple sets of the first positioning module 8 and the second positioning module 9 are alternately arranged along the periphery of the window 14, so that the first positioning module 8 can effectively position the ceiling substrate 5, and the second positioning module 9 can effectively position the ceiling assembly. After the ceiling substrate 5 is inspected, the sunroof frame 7 needs to be installed. Since the positioning of the first positioning module 8 will interfere with the sunroof frame 7, the first positioning module 8 is adjusted to a non-positioning state, that is, the positioning surface of the first positioning module 8 is separated from the bottom surface of the ceiling substrate 5; the bottom surface of the sunroof frame 7 contacts the positioning surface of the second positioning module 9 to form a positioning.

[0028] like Figure 6As shown, the first positioning module 8 includes a first mounting base 15, a positioning block 16, and a fixing block 17. The bottom end of the positioning block 16 is rotatably connected to the first mounting base 15, and its top end face is its positioning surface. In the positioning state, the positioning block 16 is in a vertical state, so that the positioning surface is in contact with the top surface of the ceiling substrate 5. It should be noted that in this embodiment, the surface facing the side where the top plate 4 is located is considered the top surface. The positioning block 16 is magnetically attracted and fixed to the ceiling substrate 5. The fixing block 17 is located on the outside of the first mounting base 15. When the skylight frame 7 needs to be installed, the positioning block 16 is flipped so that it is magnetically attracted and fixed to the fixing block 17, as shown. Figure 7 As shown, this is a non-positioning state.

[0029] The second positioning module 9 includes a second mounting base 18 and a magnetic component 19. The magnetic component 19 is mounted on the top of the second mounting base 18 and is magnetically attracted and fixed to the top surface of the sunroof frame 7 for positioning. In this embodiment, a mounting plate is provided on one side of the magnetic component 19. The mounting plate has a slotted hole, which allows the mating position between the mounting plate and the second mounting base 18 to be changed, making the height of the magnetic component 19 adjustable. After the position is adjusted, the mounting plate is fixed to the second mounting base 18 by tightening a locking nut.

[0030] Therefore, in this embodiment, the first positioning module 8 and the second positioning module 9 work together to achieve effective positioning for both the ceiling substrate 5 and the ceiling assembly.

[0031] like Figures 2-5 As shown, the first clamping module 10 clamps the bottom surface of the ceiling substrate 5 and the bottom surface of the ceiling fabric 6 from the inner ring, and the second clamping module 11 clamps the bottom surface of the ceiling substrate 5 and the bottom surface of the ceiling fabric 6 from the outer ring. In this embodiment, both the first clamping module 10 and the second clamping module 11 adopt a clamping structure, but their structures are different.

[0032] like Figure 5 As shown, the first clamping module 10 includes a first clamp seat 21, a clamp arm 22, a clamp handle 23, and a first pressure head 24. One end of the clamp arm 22 is rotatably connected to the first clamp seat 21, and the clamp handle 23 is installed at that end. By operating the clamp handle 23, the angle of the clamp arm 22 is changed, so that the first pressure head 24 is in a clamping or loosening state.

[0033] The first pressure head 24 is mounted on the other end of the clamping arm 22 via an adjusting mechanism. The adjusting mechanism includes a screw 25 and a spring 26. The first pressure head 24 is connected to the clamping arm 22 via the screw 25, and the spring 26 is sleeved on the outside of the screw 25. The spring 26 is positioned between the clamping arm 22 and the first pressure head 24. By cooperating with the screw 25 and the spring 26, the clamping force of the first pressure head 24 can be adjusted to form a clamping force on the ceiling substrate 5 or the ceiling assembly. For areas of the ceiling subjected to large local forces, the number of first pressure heads 24 connected to the clamping arm 22 can be increased.

[0034] The second pressing module 11 includes a second mounting base 18 and a second pressing head 28, which is connected to the second mounting base 18 via a connecting plate. In this embodiment, the second pressing head 28 has a knife-shaped structure, which adapts to the shape of the ceiling edge and can effectively press and support the ceiling substrate 5 and the ceiling assembly when inverted.

[0035] The detection device in this embodiment is equipped with a set of main positioning pins 13 and auxiliary positioning pins for positioning the ceiling substrate 5, and also with a set of main positioning pins 13 and auxiliary positioning pins for positioning the ceiling assembly. The main positioning pins 13 are located at one end of the top plate 4, and the auxiliary positioning pins are located at the other end of the top plate 4. The main positioning pins 13 and auxiliary positioning pins are respectively installed on the positioning base.

[0036] The testing device in this embodiment can first test the ceiling substrate 5, and then test the ceiling assembly after the test is qualified, which can maximize the testing efficiency and matching quality of the ceiling assembly.

[0037] Example 2: This embodiment also provides a method for detecting an inverted car roof, using the detection device described in Embodiment 1, including: The positioning block 16 in the first positioning module 8 is adjusted to a vertical state, and the ceiling substrate 5 is installed. The positioning substrate is positioned by each positioning block 16, the main positioning pin 13, and the auxiliary positioning pin. Then, the corresponding detection block 12 is installed to detect the matching area.

[0038] After the ceiling substrate 5 passes inspection, the positioning block 16 is flipped to a non-positioning state; the remaining components of the ceiling assembly are then installed and positioned using the second positioning module 9. Once the ceiling assembly is positioned and installed, the corresponding detection block 12 is installed to inspect the matching area.

[0039] If the roof assembly fails inspection, the defective parts in the process must be readjusted until the roof assembly passes inspection.

[0040] It should be noted that the detection method of detection block 12 is existing technology, and will not be described in detail here.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automobile roof inversion detection device, characterized by comprising: The system includes a support frame, with a top plate on the top of the support frame and a positioning component, a clamping component, and a detection block installed on the underside of the top plate. The positioning component includes a first positioning module and a second positioning module. The first positioning module is used to position the top surface of the ceiling substrate, and the second positioning module is used to position the top surface of the skylight frame. When the second positioning module is in the positioning state, the first positioning module switches to the non-positioning state. The clamping assembly includes multiple first clamping modules and second clamping modules. The first clamping modules are used to clamp the bottom surface of the inner ring of the roof substrate or roof assembly, and the second clamping modules are used to clamp the bottom surface of the outer ring of the roof substrate or roof assembly. The detection block is used to detect the roof substrate or roof assembly from the outside.

2. The roof inversion detection device of claim 1, wherein A window is provided at the center of the top plate, and the first positioning module and the second positioning module are alternately distributed around the perimeter of the window.

3. The roof inversion detection device of claim 2, wherein The window periphery is provided with multiple positioning reference surfaces for installing the first clamping module; The first clamping module is symmetrically distributed with respect to the window in both the X and Y directions.

4. The roof inversion detection device for a vehicle according to claim 1 or 2, characterized by The first positioning module includes a first mounting base, a positioning block, and a fixing block, wherein the positioning block is rotatably connected to the first mounting base; In the positioning state, the positioning block is in contact with the top surface of the ceiling substrate; in the non-positioning state, the positioning block is flipped over and adsorbed and fixed with the fixing block.

5. The roof inversion detection device of claim 1 or 2, wherein The second positioning module includes a second mounting base and a magnetic suction component fixed to the top of the second mounting base.

6. The roof inversion detection device of any one of claims 1-3, wherein, The first clamping module is located inside the positioning component, and the first clamping module and the second clamping module respectively adopt a clamping structure.

7. The roof inversion detection device of claim 6, wherein The pressure head of the first clamping module is equipped with an adjustment mechanism to adjust the clamping force.

8. The vehicle roof inversion detection device of claim 6, wherein The pressure head of the second clamping module has a knife-shaped structure.

9. The vehicle roof inversion detection device of claim 1, wherein It also includes a main locating pin and a secondary locating pin, wherein the main locating pin is used to locate one end of the ceiling substrate or ceiling assembly, and the secondary locating pin is used to locate the other end of the ceiling substrate or ceiling assembly.

10. A method of detecting an inverted roof of an automobile, characterized by, The detection device as described in any one of claims 1-9 includes: First, the ceiling substrate is placed on the lower surface of the ceiling panel and positioned and clamped; the inspection block is used to inspect the installed ceiling substrate. After the ceiling substrate passes inspection, the first positioning module flips and switches to the non-positioning state; the skylight frame is then installed and positioned by the second positioning module. The roof fabric is wrapped around the roof base material and the outside of the sunroof frame, and the assembled roof assembly is pressed together by a clamping component; then the inspection block inspects the roof assembly.