Checking fixture and checking fixture assembly for detecting matching state of automobile body metal plate

Abstract

The utility model relates to the technical field of vehicle body metal plates, in particular to a detection tool and a detection tool assembly for detecting the matching state of a vehicle body metal plate, and the detection tool for detecting the matching state of the vehicle body metal plate comprises a profiling block, and a positioning piece and a fixing piece which are arranged on the profiling block; the profile modeling block is provided with a profile modeling measurement part, the profile modeling measurement part is the same as the profile modeling of the low-position side vehicle body metal plate forming the gap to be measured, the profile modeling measurement part and the profile modeling side edge of the low-position side vehicle body metal plate are mutually overlapped after the detection tool is installed, and the thickness of the profile modeling measurement part is consistent with the surface difference of the two side vehicle body metal plates forming the gap to be measured. The device overcomes the defects of long time consumption and low analysis efficiency of the current detection of the matching state of the metal plate of the vehicle body, can perform in-situ rapid measurement, is low in cost and high in detection speed, can be designed according to different vehicle types or different derivations of the same vehicle type, and is simple to process and low in implementation cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive body sheet metal technology, and more specifically, to a gauge and gauge assembly for detecting the fit of automotive body sheet metal. Background Technology

[0002] With the increasing penetration of new energy vehicles and the growing number of cars on the road, major automakers are proposing personalized customization in the vehicle manufacturing process. Customized solutions include exterior designs such as replicated ABC taillights and parallel doors (with the front and rear door glass flush with the B-pillar trim and C-pillar glass). Due to the diversity of vehicle models, evaluating the fit of sheet metal in areas such as the hood, rear hood, doors, and fenders has become more difficult. Existing online inspection tools are vehicle-specific and cannot be used with other models due to differences in vehicle size and styling. Therefore, it is impossible to accurately determine whether the rear panel, door, and fender positions after body assembly meet standards. This leads to high rework costs due to defects in the bodywork and final assembly of exterior parts.

[0003] Currently, the industry uses offline coordinate measuring machines (CMMs) to measure and evaluate the sheet metal fit of parts such as the front hood, rear hood, doors, and fenders of a vehicle. This requires dragging the installed vehicle body into the CMM for measurement, which is time-consuming, has low analytical efficiency, and results in significant waste, which is detrimental to the healthy development of the automotive industry. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of current methods for detecting the fit of body sheet metal, which are time-consuming and have low analytical efficiency, and to provide a tool for detecting the fit of body sheet metal. This invention enables rapid on-site measurement, is low in cost and fast in detection, can be designed for different car models or different derivatives of the same car model, is simple to process, and has a low cost.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A fixture for detecting the fit of body sheet metal includes a profile block, a positioning element and a fixing element disposed on the profile block; the profile block is provided with a profile measuring part, the profile measuring part having the same shape as the lower side body sheet metal forming the gap to be measured, after the fixture is installed, the profile measuring part and the side of the lower side body sheet metal overlap each other, and the thickness of the profile measuring part is consistent with the surface difference of the two sides of the body sheet metal forming the gap to be measured.

[0007] It should be noted that due to the diversity of vehicle models, the joints of the sheet metal are often not on the same plane. Measuring the gap between sheet metal using an offline coordinate measuring machine is time-consuming and has low analytical efficiency. This utility model utilizes a molding block connected to the lower side sheet metal at the gap to be measured, molding the outer surface of the lower side sheet metal. The thickness of the molding measuring part is consistent with the surface difference between the two sides of the vehicle body sheet metal forming the gap to be measured. The thickness of the molding measuring part can make the sheet metal with different planes on both sides of the gap become the same plane after the molding block is installed. This allows for manual measurement in place, using feeler gauges and step gauges to check the gap, without the need to transfer the entire vehicle body into a coordinate measuring machine for inspection. It enables rapid in-place measurement, is low-cost, and fast. Furthermore, the development, design, and manufacturing costs of this inspection tool are low. It can be designed for different vehicle models or different derivatives of the same model, is simple to process, and has low cost. It can also be customized for specific vehicles without significant impact. In addition, manual measurement using feeler gauges and rulers is highly efficient and allows for quick judgment, achieving a win-win situation.

[0008] Furthermore, the contour measuring unit is equipped with measuring indicator points. Setting these indicator points guides the operator to quickly locate the measuring position, improving measurement speed.

[0009] Furthermore, the positioning component is a positioning pin, and there are at least two positioning pins. The positions of the positioning pins match the positions of the pre-drilled holes in the vehicle body sheet metal. At least two positioning pins ensure that the profile block does not rotate or shift, allowing for quick positioning in conjunction with the pre-drilled holes, making installation simple and convenient.

[0010] Furthermore, the fixing component is a magnetic block, and there is at least one magnetic block, which is fixed to the molding block. Since the vehicle body sheet metal is all metal, the magnetic block can firmly adhere to the vehicle body sheet metal. After positioning, the molding block is firmly adhered to the surface of the vehicle body sheet metal by the magnetic block, preventing it from moving and improving measurement accuracy.

[0011] Furthermore, the magnetic block is a magnet.

[0012] Furthermore, the molding block is also equipped with a handle. The handle facilitates handling by operators, improving the ease of installation and disassembly.

[0013] Furthermore, the molding block is an aluminum molding block.

[0014] Furthermore, the profiling block is also provided with a hollowed-out slot. Using an aluminum profiling block and providing hollowed-out slots both significantly improve the lightweight effect of the gauge and reduce the difficulty of operation for the operator during the measurement process.

[0015] A fixture assembly includes the fixture as described above, wherein the profile block is a fender profile block for detecting mating clearance;

[0016] And / or the profile block is a door profile block used for detecting the mating clearance;

[0017] And / or the molding block is a front cover molding block used for detecting the mating clearance;

[0018] And / or the molding block is a back cover molding block used to detect the mating clearance.

[0019] Furthermore, the fender profile block includes a separate fender-to-A-pillar gap profile block and a fender bottom profile block; the door profile block includes separate front and rear door gap profile blocks and side panel four door window frame gap profile blocks; the hood profile block includes a single hood-to-A-pillar gap profile block; the rear hood profile block includes a separate taillight-to-rear hood gap profile block and a side panel-to-rear hood gap profile block.

[0020] It should be noted that this utility model utilizes the aforementioned profiling block and combines it with the detection requirements of several important mating clearances in vehicle body inspection to design a set of inspection fixtures. Based on the theoretical position of the vehicle body installation, it performs simulated positioning and can detect the sheet metal mating status of the front hood / rear hood / door / fender and other positions in the welding workshop. This eliminates the high rework costs caused by defects in the body sheet metal after the final assembly and installation of exterior parts. It includes key dimensions such as clearance and step difference. The design dimensions and materials conform to the trend of lightweighting, and the detection efficiency and accuracy reach 100%.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This utility model utilizes a molding block connected to the lower side sheet metal at the gap to be measured, molding the outer surface of the lower side sheet metal. The thickness of the molding measuring part matches the surface difference between the two sides of the vehicle body sheet metal forming the gap to be measured. By utilizing the thickness of the molding measuring part, the different planes of the sheet metal on both sides of the gap can be made into the same plane after the molding block is installed. This allows for manual measurement in place, using feeler gauges and step gauges to detect the gap, without the need to transfer the entire vehicle body into a coordinate measuring machine for inspection. It enables rapid in-place measurement, is low-cost, and fast. Furthermore, the development, design, and manufacturing costs of this inspection tool are low. It can be designed for different vehicle models or different derivatives of the same model, is simple to process, and has low cost. It can also be customized for specific vehicles without significant impact. In addition, manual measurement using feeler gauges and rulers is highly efficient and allows for quick judgment, achieving a win-win situation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the planar structure of the molding block in Embodiment 1 of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the molding block in Embodiment 1 of this utility model;

[0025] Figure 3 This is a schematic diagram of the bottom surface structure of the molding block in Embodiment 1 of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of each molding block unit in Embodiment 3 of this utility model;

[0027] Figure 5 This is a schematic diagram illustrating the application of Embodiment 3 of this utility model;

[0028] Figure 6 This is a schematic diagram illustrating the application of the fourth molding block in Embodiment 3 of this utility model.

[0029] The markings in the diagram are explained below:

[0030] 1-Modeling block, 11-Modeling measuring section, 12-Measurement indicator point, 13-Handle, 14-Hollowed slot, 2-Positioning component, 3-Fixing component, 101-Modeling block for gap between fender and A-pillar, 102-Modeling block for bottom of fender, 201-Modeling block for gap between front and rear doors, 202-Modeling block for gap between side panel and four door / window frame, 300-Modeling block for gap between hood and A-pillar, 401-Modeling block for gap between taillight and rear cover, 402-Modeling block for gap between side panel and rear cover. Detailed Implementation

[0031] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0032] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] Example 1

[0034] like Figures 1 to 3The first embodiment of this utility model is shown, which provides a tool for detecting the fit of body sheet metal, specifically taking the front and rear door gap profile block 201 as an example:

[0035] like Figures 1 to 3 As shown, it includes a molding block 1, a positioning component 2 and a fixing component 3 disposed on the molding block 1; the molding block 1 is provided with a molding measuring part 11, the molding measuring part 11 has the same shape as the low-position side body sheet metal forming the gap to be measured, after the fixture is installed, the molding measuring part 11 overlaps with the side of the low-position side body sheet metal, and the thickness of the molding measuring part 11 is consistent with the surface difference of the two sides of the body sheet metal forming the gap to be measured.

[0036] It should be noted that due to the diversity of vehicle models, the joints of the sheet metal are often not on the same plane. Measuring the gap between sheet metal using an offline coordinate measuring machine is time-consuming and has low analytical efficiency. In this embodiment, a molding block 1 is connected to the lower side sheet metal at the gap to be measured, and the outer surface of the lower side sheet metal is molded. The thickness of the molding measuring part 11 is consistent with the surface difference of the two sides of the vehicle body sheet metal forming the gap to be measured. The thickness of the molding measuring part 11 can make the different planes of the sheet metal on both sides of the gap become the same plane after the molding block 1 is installed. In this way, the gap can be measured manually in place, and the gap can be detected using feeler gauges and step gauges. There is no need to transfer the entire vehicle body into a coordinate measuring machine for inspection. It can be measured quickly in place, with low cost and fast inspection speed. Moreover, the development, design and manufacturing cost of this inspection tool is low. It can be designed according to different vehicle models or different derivatives of the same vehicle model. It is simple to process and has low cost. It can be used for specific vehicles without much impact. In addition, manual measurement using feeler gauges and rulers is efficient and can quickly judge, achieving a win-win situation.

[0037] like Figures 1 to 2 As shown, the contour measuring unit 11 is equipped with a measuring indicator point 12. Setting the measuring indicator point 12 can guide the operator to quickly locate the measuring position and improve the measuring speed.

[0038] like Figures 1 to 3 As shown, positioning component 2 is a positioning pin, and there are at least two positioning pins. The positions of the positioning pins match the positions of the pre-drilled holes in the vehicle body sheet metal. At least two positioning pins can prevent the profile block 1 from rotating or shifting, and can quickly position it according to the positions of the pre-drilled holes, making installation simple and convenient.

[0039] like Figure 3 As shown, the fixing component 3 is a magnetic block, and there is at least one magnetic block. The magnetic block is fixed to the contour block 1. Since the vehicle body sheet metal is all metal, the magnetic block can firmly adhere to the vehicle body sheet metal. After positioning, the contour block 1 is firmly adhered to the surface of the vehicle body sheet metal by the magnetic block, so that it does not move, thus improving the measurement accuracy.

[0040] In this embodiment, the magnetic block is a magnet.

[0041] like Figures 1 to 3 As shown, the molding block 1 is also equipped with a handle 13. The handle 13 makes it easier for operators to pick up and remove the block, improving the convenience of installation and disassembly.

[0042] Example 2

[0043] This embodiment is similar to Embodiment 1, except that in this embodiment:

[0044] In this embodiment, the molding block 1 is an aluminum molding block 1.

[0045] like Figure 1 As shown, the profile block 1 also has a hollowed-out slot 14. The use of aluminum for the profile block 1 and the hollowed-out slot 14 on the profile block 1 can greatly improve the lightweight effect of the gauge and reduce the difficulty of operation for the operator during the measurement process.

[0046] The other structures and principles of this embodiment are the same as those of Embodiment 1.

[0047] Example 3

[0048] like Figure 4 As shown, this embodiment also provides a gauge assembly, including the gauge as described in Embodiment 1 or 2 above, wherein the profile block 1 is a fender profile block for detecting the mating clearance, a door profile block for detecting the mating clearance, a front cover profile block for detecting the mating clearance, and a rear cover profile block for detecting the mating clearance.

[0049] like Figure 5 and Figure 6 As shown, the fender profile includes a separate fender-to-A-pillar gap profile 101 and a fender bottom profile 102; the door profile includes a separate front and rear door gap profile 201 and a side panel four door window frame gap profile 202; the hood profile includes a single hood-to-A-pillar gap profile 300; the rear hood profile includes a separate taillight-to-rear hood gap profile 401 and a side panel-to-rear hood gap profile 402.

[0050] like Figure 5 and Figure 6 As shown, it should be noted that this embodiment utilizes the above-mentioned profiling block 1 and combines it with the detection requirements of several important mating clearances in vehicle body inspection to design a set of inspection fixtures. Based on the theoretical position of the vehicle body installation, it performs simulated positioning and can detect the sheet metal mating status of the front hood / rear hood / door / fender and other positions in the welding workshop. This eliminates the high rework costs caused by defects in the body sheet metal after the final assembly and installation of exterior parts. It includes key dimensions such as clearance and step difference. The design dimensions and materials conform to the trend of lightweighting, and the detection efficiency and accuracy reach 100%.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gauge for detecting the fit condition of automotive body sheet metal, characterized in that, The utility model provides a kind of wing panel gap gauge, comprising profile block (1), positioning member (2) and fixed part (3) on the profile block (1);The profile block (1) is equipped with profile measurement part (11), the profile measurement part (11) is identical with the modeling of low side car body sheet metal of the gap to be measured, after gauge installation, the profile measurement part (11) and the modeling side of low side car body sheet metal overlap each other, the thickness of the profile measurement part (11) is consistent with the face difference of the two car body sheet metals of the gap to be measured.

2. The gauge for detecting the fitting state of the body panel according to claim 1, wherein The profile measurement part (11) is equipped with measurement indicating point (12).

3. The gauge for detecting the fitting state of the body panel according to claim 1, wherein The positioning member (2) is positioning pin, the number of the positioning pin is at least two, and the position of the positioning pin is matched with the position of the reserved hole of car body sheet metal.

4. The gauge for detecting the fitting state of the body panel according to claim 1, wherein The fixed part (3) is magnetic block, the number of the magnetic block is at least one, and the magnetic block is fixed on the profile block (1).

5. The gauge for detecting the fitting state of the body panel according to claim 3, wherein The magnetic block is magnet.

6. The gauge for detecting the fitting state of the body panel according to claim 1, wherein The profile block (1) is further provided with handle (13).

7. The gauge for detecting the fitting state of the body panel according to claim 1, wherein The profile block (1) is aluminum profile block (1).

8. The gauge for detecting the fitting state of the body panel according to claim 1, wherein The profile block (1) is further provided with hollow slot (14).

9. A gauge assembly characterized by, The utility model provides a kind of wing panel gap gauge, comprising profile block (1), positioning member (2) and fixed part (3) on the profile block (1);The profile block (1) is equipped with profile measurement part (11), the profile measurement part (11) is identical with the modeling of low side car body sheet metal of the gap to be measured, after gauge installation, the profile measurement part (11) and the modeling side of low side car body sheet metal overlap each other, the thickness of the profile measurement part (11) is consistent with the face difference of the two car body sheet metals of the gap to be measured. The profile measurement part (11) is equipped with measurement indicating point (12). The positioning member (2) is positioning pin, the number of the positioning pin is at least two, and the position of the positioning pin is matched with the position of the reserved hole of car body sheet metal. The fixed part (3) is magnetic block, the number of the magnetic block is at least one, and the magnetic block is fixed on the profile block (1).

10. A gauge assembly according to claim 9, wherein, The magnetic block is magnet. The profile block (1) is further provided with handle (13). The profile block (1) is aluminum profile block (1). The profile block (1) is further provided with hollow slot (14). The utility model provides a kind of wing panel gap gauge, comprising profile block (1), positioning member (2) and fixed part (3) on the profile block (1);The profile block (1) is equipped with profile measurement part (11), the profile measurement part (11) is identical with the modeling of low side car body sheet metal of the gap to be measured, after gauge installation, the profile measurement part (11) and the modeling side of low side car body sheet metal overlap each other, the thickness of the profile measurement part (11) is consistent with the face difference of the two car body sheet metals of the gap to be measured. The profile measurement part (11) is equipped with measurement indicating point (12). The positioning member (2) is positioning pin, the number of the positioning pin is at least two, and the position of the positioning pin is matched with the position of the reserved hole of car body sheet metal. The fixed part (3) is magnetic block, the number of the magnetic block is at least one, and the magnetic block is fixed on the profile block (1). The magnetic block is magnet. The profile block (1) is further provided with handle (13). The profile block (1) is aluminum profile block (1). The profile block (1) is further provided with hollow slot (14).

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