A tooling for inspecting automotive fender front trim strip modules

Abstract

This utility model discloses a fixture for a front-end decorative strip module of an automobile fender, including a fixture body and a positioning component disposed on the fixture body. The fixture body includes a first inspection area, a second inspection area, and a third inspection area for inspecting three main parts of the front end of the fender: the top, the middle, and the bottom. The first and third inspection areas are respectively located at both ends of the second inspection area. The positioning component includes multiple positioning blocks and magnetic blocks disposed on the fixture body, and also includes a positioning pin disposed in the first inspection area. The fixture body is positioned at the front end of the fender by the positioning component, and the gap between the fixture body and the front end of the fender after positioning is used to measure the surface height difference and contour gap value of the front end of the fender. This simulates the fit between the contact parts of the subsequent assembled parts, identifies possible gap surface difference fit problems in advance, and determines whether the dimensions of the front end of the fender meet the design requirements at the body-in-white stage.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of automotive installation and testing technology, and more specifically, relate to a tooling for a front-end decorative strip module of an automotive fender. Background Technology

[0002] In automobile manufacturing, the gaps and surface differences between the fender trim strip and adjacent components (such as the hood and fender) directly affect the overall appearance quality and assembly precision of the vehicle. Traditional inspection methods rely on manual experience or general measuring tools, resulting in low efficiency and insufficient accuracy. This is especially true in real-world vehicle conditions where it is difficult to quickly assess the matching effect between the trim strip and surrounding components. Therefore, there is an urgent need for a specialized inspection tool that can simulate the actual installation state, accurately measure geometric parameters, and is easy to operate, to meet the requirements of high-precision and high-efficiency inspection.

[0003] In existing technologies, master models and modular fixtures are the main tools for inspecting vehicle body parts. Master models are typically made of wood or plastic and serve as the basis for inspection by simulating the actual size and shape of the parts. Modular fixtures, on the other hand, employ partial solid structures that fit with the vehicle body through positioning blocks and holes to inspect gaps and surface differences. However, traditional master models are prone to deformation due to the material's susceptibility to temperature and humidity changes, leading to decreased accuracy over long-term use. They are also bulky and costly to manufacture. While conventional modular fixtures have a simplified structure, they lack convenient positioning design and integrated measurement benchmarks, requiring frequent adjustments and relying on manual judgment, thus limiting inspection efficiency.

[0004] The main drawbacks of existing technologies are: 1) the main model material has poor stability and is easily deformed, affecting the reliability of the inspection; 2) the modular fixture has insufficient positioning accuracy, lacks a handheld design, and the installation process is cumbersome; 3) the measurement benchmark is missing, requiring additional equipment to assist in data acquisition, increasing the complexity and time cost of the inspection. This invention addresses these problems by proposing a modular fixture made of forged aluminum alloy that has undergone precision machining and oxidation treatment, enabling rapid installation, high-precision positioning, and direct data acquisition, thereby improving inspection efficiency and accuracy while reducing long-term operating costs. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a pre-fabricated trim module inspection fixture for automotive fenders. The fixture body is positioned at the front end of the fender using a positioning component. The fixture measures the height difference and profile clearance of the front end of the fender by measuring the gap between itself and the fender. This simulates the fit between contact points of subsequently assembled parts, identifies potential gap / surface difference fit issues in advance, and determines whether the dimensions of the front end of the fender meet design requirements during the body-in-white stage. It also allows for timely adjustment of assembly gaps and surface differences in the body assembly to meet the technical requirements of the body assembly.

[0006] To achieve the above objectives, this utility model provides a preformer for a front decorative strip module of an automobile fender, including a preformer body and a positioning component disposed on the preformer body;

[0007] The main body of the inspection tool includes a first inspection area, a second inspection area, and a third inspection area for inspecting three main parts of the front end of the fender: the top, middle, and bottom. The first and third inspection areas are respectively located at both ends of the second inspection area.

[0008] The positioning component includes multiple positioning blocks and magnetic blocks disposed on the main body of the inspection fixture, and also includes a positioning pin disposed in the first detection area.

[0009] Furthermore, the second detection area is a strip plate with a positioning seat on its back, which is a square block;

[0010] On the side of the positioning seat near the vehicle fender, there is a fourth positioning block. The fourth positioning block includes two cylindrical blocks that are fixed to the positioning seat with bolts. The positioning seat also has a first magnetic block and a third magnetic block. The first magnetic block and the third magnetic block are located on the same side of the positioning seat as the fourth positioning block, and the diameter of the third magnetic block is smaller than that of the first magnetic block.

[0011] Furthermore, the two cylindrical blocks of the fourth positioning block have the same thickness, and the thickness of the first magnetic block and the second magnetic block is less than that of the fourth positioning block.

[0012] Furthermore, a fifth positioning block is provided on the side of the second detection area, and the side of the second detection area with the fifth positioning block is in contact with the end face of the vehicle fender.

[0013] Furthermore, a mounting base is provided on one side of the second detection area, and a hand-held part is fixed to the mounting base by bolts;

[0014] The second detection area is thickened inward at one end near the third detection area. The positioning seat is located in the thickened area of ​​the second detection area, and the thickened area has an arc, which is the same as the design arc at the connection of the end face of the vehicle fender.

[0015] Furthermore, the first detection area bends backward and twists to the side away from the vehicle fender;

[0016] A reinforcing plate is provided at the junction of the first and second detection areas.

[0017] Furthermore, a raised adjustment platform is provided on the back of the first detection area, and a leveling block is provided on the adjustment platform. The leveling block is fixed to the adjustment platform by bolts.

[0018] The leveling block is provided with a first positioning block, which penetrates the leveling block, the adjustment platform and the first detection area.

[0019] Furthermore, the positioning pin is provided in the first positioning hole, and a second positioning hole is provided on the body fender corresponding to the position of the first positioning block. One end of the positioning pin passes through the first positioning hole and is inserted into the second positioning hole.

[0020] The end of the positioning pin near the second positioning hole is also provided with an annular limiting plate, which limits the positioning pin.

[0021] The leveling block is also provided with a first positioning block, the thickness of which is greater than the thickness of the upper positioning plate of the positioning pin.

[0022] Furthermore, the third detection area is connected to the second detection area by an inclined plate, so that the third detection area is located in a plane closer to the side of the vehicle fender.

[0023] Furthermore, the third detection area is connected to the second detection area by an inclined plate, so that the third detection area is located in a plane closer to the side of the vehicle fender. A second positioning block and a third positioning block are provided on the back of the third detection area. The second positioning block is a cube, and the third positioning block is a cylinder. Both the second and third positioning blocks are bolted to the third detection area. A third magnetic block and a fourth magnetic block are also provided on the back of the third detection area.

[0024] The second and third positioning blocks have the same thickness, and both of their thicknesses are greater than the thicknesses of the third and fourth magnetic blocks.

[0025] The side of the third detection area is also provided with a sixth positioning block and a fifth magnetic block, and the thickness of the sixth positioning block is greater than the thickness of the fifth magnetic block.

[0026] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0027] 1. The modular inspection fixture of this utility model positions the main body of the fixture at the front end of the vehicle body fender through a positioning component. It measures the height difference and contour gap value of the front end of the vehicle body fender by measuring the gap between the fixture and the front end of the vehicle body fender after positioning. It simulates the fit of the contact parts between the subsequent assembly parts, identifies possible gap and surface difference fit problems in advance, judges whether the size of the front end of the vehicle body fender meets the design requirements at the body-in-white stage, and adjusts the assembly gap and surface difference of the body assembly in a timely manner to meet the technical requirements of the body assembly.

[0028] 2. The modular inspection tool of this utility model has a handheld part for the operator to hold. This allows the operator to easily hold the inspection tool body when installing it onto the vehicle fender. The first positioning hole on the back of the inspection tool body is aligned with the second positioning hole on the vehicle fender. The positioning pin is inserted and tightened. At the same time, multiple positioning blocks on the back of the inspection tool body are in contact with the corresponding surfaces on the vehicle fender. The measurement results can be easily obtained by collecting the detection parameters through the measuring equipment set on the outer side of the inspection tool body.

[0029] 3. The modular inspection tool of this utility model is further provided with automotive coordinate system scale lines on the surface of the main body of the inspection tool, and marked with a 3mm gap at the inspection contour and a 0mm scale mark on the surface of the contour, so as to facilitate the operators to use the inspection equipment to inspect the height difference and contour gap value between the front decorative strip of the fender and the fender and the adjacent hood when inspecting the overall vehicle condition.

[0030] 4. The modular inspection tool of this utility model can conveniently meet the inspection requirements, has a simple structure, is easy to use, has a low cost, and can improve work efficiency. Attached Figure Description

[0031] Figure 1 This is a first-view schematic diagram of the structure of a car fender front decorative strip module inspection tool according to an embodiment of the present invention;

[0032] Figure 2 This is a second-view schematic diagram of the structure of a car fender front decorative strip module inspection fixture according to an embodiment of the present invention;

[0033] Figure 3 This is a third-view schematic diagram of the structure of a car fender front decorative strip module inspection fixture according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the installation of a prestressed trim module for the front end of an automobile fender, according to an embodiment of the present invention.

[0035] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-main body of the fixture, 101-first detection area, 102-second detection area, 103-third detection area, 2-first positioning hole, 3-positioning pin, 4-first positioning block, 5-second positioning block, 6-third positioning block, 7-fourth positioning block, 8-fifth positioning block, 9-sixth positioning block, 10-first magnetic block, 11-second magnetic block, 12-third magnetic block, 13-fourth magnetic block, 14-fifth magnetic block, 15-handheld part, 16-body fender, 17-second positioning hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] The front fender of a car is a crucial component of the body panel, located above the front wheels and covering the area between the wheels and the body. Its design must balance functionality, aesthetics, and aerodynamic performance, making it a key component of the car's exterior styling. It also serves as an important structure for body protection and airflow guidance. Its cross-section is mainly divided into the top where it joins the hood, the bottom where it connects to the wheel arch fender, and the middle section on the side of the body. Therefore, the dimensional accuracy of these three main parts of the front fender is critical for car assembly. Since these three parts connect to different structural components, ensuring their dimensional accuracy is essential, and these parts should be inspected simultaneously during the assembly process.

[0038] This utility model provides a tooling for inspecting a front-end decorative strip module of an automobile fender, including a tooling body 1 and a positioning component disposed on the tooling body 1. The tooling body 1 includes a first inspection area 101, a second inspection area 102, and a third inspection area 103 for inspecting three main parts of the front end of the fender, namely the top, middle, and bottom. The positioning component includes multiple positioning blocks and magnetic blocks disposed on the first inspection area 101, the second inspection area 102, and the third inspection area 103. The positioning component positions the tooling body 1 at the front end of the fender 16 of the vehicle body, allowing it to measure the surface height difference and contour gap value of the front end of the fender 16 by measuring the gap between the tooling body 16 and the front end of the fender 16 after positioning. This simulates the fit between the contact parts of the subsequent assembled parts, identifies potential gap and surface difference fit problems in advance, and determines whether the dimensions of the front end of the fender 16 meet the design requirements at the body-in-white stage. It also allows for timely adjustment of the assembly gap and surface difference of the vehicle body assembly to meet the technical requirements of the vehicle body assembly.

[0039] The first detection area 101 and the third detection area 103 are respectively located at both ends of the second detection area 102. The second detection area 102 is a strip plate with a positioning seat on its back, which is a square block. A fourth positioning block 7 is provided on the side of the positioning seat near the vehicle fender 16. The fourth positioning block 7 includes two cylindrical blocks, which are fixed to the positioning seat with bolts. The positioning seat also has a first magnetic block 10 and a second magnetic block 11, which are located on the same side of the positioning seat as the fourth positioning block 7, and the diameter of the second magnetic block 11 is smaller than that of the first magnetic block 10. The two cylindrical blocks of the fourth positioning block 7 have the same thickness, and the thickness of the first magnetic block 10 and the second magnetic block 11 is smaller than that of the fourth positioning block 7. A fifth positioning block 8 is also provided on the side of the second detection area 102, and the side of the second detection area 102 with the fifth positioning block 8 contacts the end face of the vehicle fender 16.

[0040] Furthermore, a mounting base is provided on one side of the second inspection area 102, and a handheld part 15 is fixed on the mounting base by bolts. The operator uses the handheld part 15 to pick up the inspection tool and place it on the end face of the vehicle fender 16 for positioning.

[0041] Furthermore, the end of the second detection area 102 near the third detection area 103 is thickened inward, and the positioning seat is located in the thickened area of ​​the second detection area 102. The thickened area has an arc, which is the same as the design arc at the connection of the end face of the body fender 16, so as to facilitate the positioning of the second detection area 102 and the end face of the body fender 16.

[0042] The first detection area 101 bends backward and twists away from the side of the vehicle fender 16. A reinforcing plate is provided at the joint between the first detection area 101 and the second detection area 102 to strengthen the connection between the first detection area 101 and the second detection area 102 and prevent deformation during the detection process from affecting the detection results. A raised adjustment platform is also provided on the back of the first detection area 101. A leveling block is provided on this platform, and the leveling block is fixed to the platform with bolts. A first positioning block 4 is provided on the leveling block, which penetrates the leveling block, the adjustment platform, and the first detection area 101.

[0043] A positioning pin 3 is provided in the first positioning hole 2. A second positioning hole 17 is provided on the fender 16 corresponding to the position of the first positioning block 4. One end of the positioning pin 3 passes through the first positioning hole 2 and is inserted into the second positioning hole 17. An annular limiting plate is also provided at the end of the positioning pin 3 near the second positioning hole 17, and the limiting plate limits the positioning pin 3. The leveling block is also provided with a first positioning block 4. The thickness of the first positioning block 4 is greater than the thickness of the limiting plate above the positioning pin 3, so as to prevent the end face of the first positioning block 4 from not being able to contact the fender 16 due to the limiting plate being too thick.

[0044] The third detection area 103 is connected to the second detection area 102 by an inclined plate, so that the third detection area 103 is located in a plane closer to the side of the vehicle fender 16. The back of the third detection area 103 is provided with a second positioning block 5 and a third positioning block 6. The second positioning block 5 is a cube, and the third positioning block 6 is a cylindrical block. Both the second positioning block 5 and the third positioning block 6 are bolted to the third detection area 103. The back of the third detection area 103 is also provided with a third magnetic block 12 and a fourth magnetic block 13. The second positioning block 5 and the third positioning block 6 have the same thickness, and both are thicker than the third magnetic block 12 and the fourth magnetic block 13. The side of the third detection area 103 is also provided with a sixth positioning block 9 and a fifth magnetic block 14, and the thickness of the sixth positioning block 9 is greater than the thickness of the fifth magnetic block 14.

[0045] Furthermore, the end face of the second positioning block 5 contacts the mounting portion of the body fender 16 near the wheel mudguard, and the end face of the sixth positioning block 9 contacts the end face of the body fender 16 near the wheel mudguard, so as to complete the positioning of the gauge near the wheel mudguard.

[0046] As a preferred embodiment, the module body 1 is forged and then machined. Specifically, after the blank of the inspection fixture body 1 is made by forging, the blank is then processed by CNC machining equipment to obtain three high-precision inspection areas.

[0047] It is understandable that the operator holds the handpiece 15, allowing for convenient gripping of the fixture body 1 when installing it onto the vehicle fender 16. The first positioning hole 2 on the back of the fixture body 1 aligns with the second positioning hole 17 on the vehicle fender 16. The positioning pin 3 is inserted and tightened, while multiple positioning blocks on the back of the fixture body 1 abut against corresponding surfaces on the vehicle fender 16. Measurement results can be easily obtained by collecting test parameters through measuring equipment on the outer side of the fixture body 1. Therefore, this utility model's automotive fender front decorative strip module fixture conveniently meets testing needs, has a simple structure, is easy to use, has low cost, and improves work efficiency.

[0048] Understandably, the thickness of each magnetic block is 0.7mm smaller than that of the positioning block, so that the suction force is not too large, making it easy to adjust the position and remove. In addition, the entire fixture is made of aluminum alloy, and each one weighs only 1.5kg, making it lightweight and portable.

[0049] The main body 1 of the inspection tool is also provided with automotive coordinate system scale lines, and the gap of 3mm at the inspection contour and the scale mark of 0mm on the surface are marked, so that the operator can intuitively use the inspection equipment to inspect the height difference and contour gap value between the front decorative strip of the fender and the fender and the adjacent hood when inspecting the overall vehicle condition.

[0050] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0051] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0052] In this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a 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 limitation, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, and not to limit it; those skilled in the art will readily understand that the above description is only a preferred embodiment of this utility model, and is not intended to limit this utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fender front end trim module gauge, comprising: a base; a fender front end trim module; and a fender front end trim module gauge, wherein the fender front end trim module gauge is attached to the base. It includes a fixture body (1) and a positioning component disposed on the fixture body (1); The main body of the inspection fixture (1) includes a first inspection area (101), a second inspection area (102), and a third inspection area (103) for inspecting the top, middle, and bottom of the front end of the fender, respectively. The first inspection area (101) and the third inspection area (103) are respectively located at both ends of the second inspection area (102). The positioning component includes multiple positioning blocks and magnetic blocks disposed on the main body (1) of the inspection fixture, and also includes a positioning pin (3) disposed in the first detection area (101).

2. The fender end trim module gauge of claim 1, wherein: The second detection area (102) is a strip plate with a positioning seat on its back, which is a square block; On the side of the positioning seat near the fender (16) of the vehicle body, there is a fourth positioning block (7). The fourth positioning block (7) includes two cylindrical blocks, which are fixed to the positioning seat with bolts. The positioning seat also has a first magnetic block (10) and a second magnetic block (11). The first magnetic block (10) and the second magnetic block (11) are located on the same side of the positioning seat as the fourth positioning block (7), and the diameter of the second magnetic block (11) is smaller than that of the first magnetic block (10).

3. The fender end trim module gauge of claim 2, wherein: The two cylindrical blocks of the fourth positioning block (7) have the same thickness, and the thickness of the first magnetic block (10) and the second magnetic block (11) is less than that of the fourth positioning block (7).

4. The fender end trim module gauge of claim 3, wherein: The second detection area (102) is also provided with a fifth positioning block (8) on its side. The side of the second detection area (102) with the fifth positioning block (8) is in contact with the end face of the vehicle fender (16).

5. The fender end trim module gauge of claim 4, wherein: A mounting base is also provided on one side of the second detection area (102), and a hand-held part (15) is fixed on the mounting base by bolts. The second detection area (102) is thickened inward at one end near the third detection area (103). The positioning seat is located in the thickened area of ​​the second detection area (102), and the thickened area has an arc, which is the same as the design arc at the end face connection of the vehicle body fender (16).

6. A fender end trim module gauge as defined in any one of claims 1-5, characterized in that, The first detection area (101) bends backward and twists away from the fender (16) of the vehicle body; A reinforcing plate is provided at the joint between the first detection area (101) and the second detection area (102).

7. The fender end trim module gauge of claim 6, wherein: The back of the first detection area (101) is also provided with a raised adjustment platform, and the adjustment platform is also provided with a leveling block, which is fixed to the adjustment platform by bolts; The leveling block is provided with a first positioning block (4), which penetrates the leveling block, the leveling platform and the first detection area (101).

8. The fender end trim module gauge of claim 7, wherein: The positioning pin (3) is located in the first positioning hole (2), and the second positioning hole (17) is provided on the fender (16) of the vehicle body corresponding to the position of the first positioning block (4). One end of the positioning pin (3) passes through the first positioning hole (2) and is inserted into the second positioning hole (17). The positioning pin (3) is also provided with an annular limiting plate at one end near the second positioning hole (17), and the limiting plate limits the positioning pin (3); The leveling block is also provided with a first positioning block (4), the thickness of which is greater than the thickness of the upper positioning plate of the positioning pin (3).

9. The fender end trim module gauge of claim 5, wherein: The third detection area (103) is connected to the second detection area (102) by an inclined plate, so that the third detection area (103) is located in the plane closer to the side of the vehicle body fender (16).

10. The fender end trim module gauge of claim 9, wherein: The back of the third detection area (103) is provided with a second positioning block (5) and a third positioning block (6). The second positioning block (5) is a square block and the third positioning block (6) is a cylindrical block. The second positioning block (5) and the third positioning block (6) are both connected to the third detection area (103) by bolts. The back of the third detection area (103) is also provided with a third magnetic block (12) and a fourth magnetic block (13). The second positioning block (5) and the third positioning block (6) have the same thickness, and both of them are thicker than the third magnetic block (12) and the fourth magnetic block (13). The third detection area (103) is also provided with a sixth positioning block (9) and a fifth magnetic block (14) on its side, and the thickness of the sixth positioning block (9) is greater than the thickness of the fifth magnetic block (14).

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