Tool for measuring installation precision of automobile front-end module

Abstract

The utility model discloses an automobile front end module installation precision measuring tool, comprising a frame main body, positioning assemblies and a measuring assembly, the positioning assemblies are installed at two ends of the frame main body and are used for cooperating with fenders at two ends of an automobile for positioning; the measuring assembly is installed on one side of the frame body and used for measuring the precision of the automobile front-end module. According to the utility model, the frame main body is installed at the front end of the automobile, the positioning assembly is used to cooperate with the fenders at the two ends for positioning, and then the measuring assembly can be used to detect the installation precision of the front-end module.

Description

Technical Field

[0001] The utility model relates to the technical field of installation and measurement tooling, and more specifically, to an installation precision measurement tooling for an automobile front-end module. Background Art

[0002] In the development of automobile production technology, modular production is a long-term development trend. Among them, the front-end module is an important part of the front enclosure frame module. In the front enclosure field, the front combination lamp, grille, front bumper, front pedestrian calf protection bracket and deflector and other parts are installed on the front-end module, and its installation accuracy and stability play a vital role in the matching of the front enclosure size.

[0003] To measure the installation accuracy of the front-end module, traditional equipment needs to be coordinated in advance to first measure the accuracy of the body-in-white with the vehicle reference hole, then establish a secondary coordinate system with the measurement values ​​of the precision holes measured on the body-in-white, and finally use the portable three-coordinate measurement to measure the installation accuracy of the front-end module. If the secondary coordinate system is established only based on the design theory of the precision hole, its deviation exceeds the acceptable accuracy range (±1.0mm). The shortcomings and reasons of the above existing measurement solutions are:

[0004] 1. Portable three-coordinate measurement requires the establishment of a secondary coordinate system for the precision body-in-white, but welding measurement resources are limited, and the number of precision body-in-white measurements is about 1 unit / 2 batches;

[0005] 2. The efficiency of portable three-coordinate measurement is low (the required working hours are about 2 hours / unit). Since the three-coordinate cannot be measured when the production line is flowing, the covering parts (front bumper, etc.) need to be removed after the whole vehicle is off the line for measurement;

[0006] 3. Portable three-coordinate measurement cannot measure installation stability in batches. Limited by the number of precision white bodies and measurement efficiency, it is impossible to measure the installation accuracy of large quantities of front-end modules.

[0007] Prior art CN213021499U discloses a portable three-dimensional coordinate measuring machine that is easy to fix, belonging to the technical field of three-dimensional coordinate measuring machines. The portable three-dimensional coordinate measuring machine that is easy to fix includes a base, a bracket is fixedly connected to the middle of the upper surface of the base, a fixing column is fixedly connected to the top of the bracket, a limiting groove is provided on the upper surface of the fixing column, a fixing threaded hole is provided on the outer surface of the fixing column, a fixing bolt is connected to the inner thread of the fixing threaded hole, a limiting block is arranged inside the limiting groove, a base is fixedly connected to the top of the limiting block, threaded through holes are provided at the four corners of the base surface, and a threaded column is threadedly connected to the inner surface of the threaded through hole. The portable three-dimensional coordinate measuring machine that is easy to fix needs to be assembled and leveled before the object to be measured can be placed in the three-dimensional measurement space, and the coordinate position of each measuring point on the object to be measured can be obtained based on the measurement base point. Utility Model Content

[0008] In order to solve the above problems, the utility model proposes a vehicle front-end module installation accuracy measuring tool, which installs a frame body on the front end of the vehicle and uses a positioning component to cooperate with the fenders at both ends for positioning. Then, the measuring component can be used to detect the installation accuracy of the front-end module, omitting the assembly and leveling steps required by traditional measuring tools, making the measurement of the installation accuracy of the vehicle front-end module more convenient and efficient.

[0009] In order to achieve the above-mentioned purpose, the present technical scheme provides a vehicle front-end module installation accuracy measurement tool, including a frame body, a positioning component and a measuring component. The positioning component is installed at both ends of the frame body for positioning with the fenders at both ends of the car, and the measuring component is installed on one side of the frame body for measuring the accuracy of the vehicle front-end module.

[0010] In this technical solution, the positioning assembly and the measuring assembly are respectively fixed on the frame body according to the standard installation dimensions of the body-in-white. The technicians first install the positioning assemblies at both ends of the tooling into the fender positioning holes at the front end of the body-in-white, and then extend the measuring assembly into the front panel reference hole of the front-end module to perform local reference measurement of the front-end module. The measuring tooling does not need to establish a coordinate system based on the accuracy of the body-in-white for a second time to waste measurement resources. Therefore, this technical solution can perform installation accuracy measurement on the front-end modules of batches of body-in-white.

[0011] As a preferred solution, in order to ensure the structural strength of the frame body, the frame body includes a first crossbeam, two longitudinal beams and a second crossbeam, the first crossbeam and the second crossbeam are arranged side by side, the first crossbeam and the second crossbeam are connected by the two longitudinal beams, the positioning component is installed at the two opposite ends of the first crossbeam, the measuring component is installed on the second crossbeam and corresponds to the detection point of the automobile front-end module, the length of the first crossbeam is adapted to the distance between the two fenders of the white body, and the length of the second crossbeam is adapted to the length of the front-end module.

[0012] As a preferred solution, in order to facilitate the connection and positioning between the tooling and the fenders on both sides of the body-in-white, the positioning assembly includes two positioning pins, and positioning holes are respectively provided at both ends of the first crossbeam. The two positioning pins are respectively detachably connected to the positioning holes, and gaskets are provided on the positioning pins. The tooling can fix the positioning pins in suitable positioning holes according to the model of the body-in-white to achieve common use by multiple models, and the gaskets are used to prevent the positioning pins from loosening.

[0013] As a preferred solution, the measuring component includes three measuring cursors, two of which are respectively arranged at the two ends of the second crossbeam, and the other measuring cursor is arranged in the middle of the second crossbeam. The three measuring cursors are arranged at equal intervals and adapted to the three front panel reference holes of the front-end module. At the same time, the measuring cursor can slide according to the position of the front panel reference hole to measure the deviation value of the installation of the front-end module.

[0014] As a preferred solution, the two measuring cursors located at both ends of the second beam slide laterally along the length direction of the second beam, the measuring cursor located in the middle of the second beam slides laterally perpendicular to the length direction of the second beam, the measuring cursors located at both ends of the second beam slide along the X direction according to the positions of the left and right measuring holes of the front-end module to measure the installation accuracy of the front-end module in the X direction, and the measuring cursor located in the middle of the second beam slides along the Y direction according to the position of the measuring hole in the middle of the front-end module to measure the installation accuracy of the front-end module in the Y direction.

[0015] As a preferred embodiment, the measuring cursor includes a measuring slide and a measuring end, the measuring slide is provided with a horizontal sliding hole, the measuring end is slidably connected in the sliding hole, the measuring slide is provided with a scale corresponding to the sliding hole, and the second crossbeam is respectively provided with three mounting holes for installing the measuring slide, and each of the measuring slides is respectively installed in the mounting holes.

[0016] As a preferred solution, in order to meet measurement requirements and ensure measurement accuracy, the measuring range of the ruler is ±5 mm and the accuracy is 0.1 mm.

[0017] As a preferred solution, the positioning assembly also includes a positioning block provided at the bottom of the second beam and abutting against the front end module, and the positioning block can be snapped onto the end face of the front end module to realize positioning of the tooling in the Z direction.

[0018] As a preferred solution, in order to strengthen the structural strength of the tooling and prevent the tooling from deforming and affecting the measurement accuracy, two reinforcing rods are provided between the first crossbeam and the second crossbeam. The two reinforcing rods are respectively inclined and symmetrically arranged with the middle part of the first crossbeam as the axis. One end of the reinforcing rod is connected to the first crossbeam, and the other end of the reinforcing rod is connected to the longitudinal beam. The reinforcing rod, the first crossbeam and the longitudinal beam form a triangular frame structure with good stability and not easy to deform.

[0019] As a preferred solution, in order to increase the portability of the tooling, a handle is provided on the frame body.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model uses the positioning assembly to cooperate with the fenders on both sides of the body-in-white for reference positioning. Since the positions of the measuring assembly and the positioning assembly are standard installation positions, the front-end module can be accurately measured after the tooling completes the positioning, and the measurement accuracy is high.

[0022] 2. The reference positioning is achieved through the positioning component, without the need for secondary positioning or establishment of a secondary coordinate system. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of the utility model of the automobile front-end module installation accuracy measurement tool;

[0024] Figure 2 yes Figure 1 A schematic diagram of another perspective;

[0025] Figure 3 yes Figure 1 A partial enlarged view of part A;

[0026] Figure 4 yes Figure 1 A partial enlarged view of part B;

[0027] Figure 5 It is a schematic diagram of the utility model in use.

[0028] In the figure: a first cross beam 1; a positioning hole 101; a second cross beam 2; a longitudinal beam 3; a reinforcing rod 4; a positioning pin 5; a gasket 6; a measuring slide 7; a measuring end 8; a positioning block 9; a handle 10; a reinforcing rib 11; a fender 12; and a front end module 13. DETAILED DESCRIPTION

[0029] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0032] Embodiment 1:

[0033] like Figures 1 to 4 As shown, this embodiment provides a vehicle front-end module installation accuracy measurement tool, including a frame body, a positioning component and a measuring component. The positioning components are installed at both ends of the frame body to cooperate with the fenders 12 at both ends of the car for positioning, and the measuring component is installed on one side of the frame body to measure the accuracy of the vehicle front-end module 13.

[0034] In this embodiment, the frame body is made of aluminum alloy material. The density of aluminum alloy is low, but the strength is relatively high, close to or exceeding that of high-quality steel, with good plasticity, and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance, and is widely used in industry. The frame body is light in weight, which is convenient for technicians to lift and put into the body-in-white, and is highly portable. The technicians open the tooling and place it on the body-in-white, and achieve reference positioning through the positioning assembly and the fenders 12 at both ends. Subsequently, the front-end module 13 is accurately measured through the measuring assembly arranged at the front of the frame body, and the body-in-white whose installation position does not meet the standards is reworked.

[0035] Specifically, the frame body includes a first crossbeam 1, two longitudinal beams 3 and a second crossbeam 2. The first crossbeam 1 and the second crossbeam 2 are arranged side by side. The first crossbeam 1 and the second crossbeam 2 are connected by the two longitudinal beams 3. The positioning component is installed at the two ends of the first crossbeam 1. The measuring component is installed on the second crossbeam 2 and corresponds to the detection point of the automobile front-end module 13.

[0036] In this embodiment, in order to adapt to the front part of the white side body, the length of the first cross beam 1 is adapted to the distance between the fenders 12 on both sides, the length of the second cross beam 2 is adapted to the length of the front end module 13, and the second cross beam 2 corresponds to the middle part of the first cross beam 1. Due to the height difference between the fender 12 and the front end module 13, the two ends of the second cross beam 2 are respectively fixed with connecting blocks adapted to the height difference by bolts, and one end of the two longitudinal beams 3 is welded to the connecting blocks at both ends of the second cross beam 2.

[0037] Specifically, the positioning assembly includes two positioning pins 5 . Positioning holes 101 are respectively provided at both ends of the first crossbeam 1 . The two positioning pins 5 are respectively detachably connected to the positioning holes 101 . A gasket 6 is sleeved on the positioning pins 5 .

[0038] In this embodiment, two locating holes 101 are respectively provided at both ends of the first cross beam 1, which can be used to adapt to the white body with different fender 12 spacings. The gasket 6 is used to balance and increase the contact area to prevent the locating pin 5 from loosening.

[0039] Specifically, the positioning assembly further includes a positioning block 9 which is disposed at the bottom of the second crossbeam 2 and abuts against the front end module 13 .

[0040] In this embodiment, the two positioning blocks 9 are respectively arranged at the two ends of the second cross beam 2, and are used to abut against the front end module 13 to further limit the position in the Z direction.

[0041] Specifically, the measuring component includes three measuring cursors, two of which are respectively arranged at the two ends of the second beam 2, and the other measuring cursor is arranged in the middle of the second beam 2. The two measuring cursors located at the two ends of the second beam 2 slide laterally along the length direction of the second beam 2, and the measuring cursor located in the middle of the second beam 2 slides laterally perpendicular to the length direction of the second beam 2.

[0042] In this embodiment, three measuring holes are respectively provided at the left, right and middle positions of the front-end module 13. The left and right measuring cursors are used to measure the installation accuracy of the front-end module 13 in the X direction, and the middle measuring cursor is used to measure the installation accuracy of the front-end module 13 in the Y direction.

[0043] Specifically, the measuring cursor includes a measuring slide 7 and a measuring terminal 8. The measuring slide 7 is provided with a horizontal sliding hole. The measuring terminal 8 is slidably connected in the sliding hole. The measuring slide 7 is provided with a scale corresponding to the sliding hole. The second crossbeam 2 is respectively provided with three mounting holes for installing the measuring slide 7. Each of the measuring slides 7 is respectively installed in the mounting holes. The measuring range of the scale is ±5mm and the accuracy is 0.1mm.

[0044] In this embodiment, the sliding holes at the left and right ends are arranged along the X direction so that the left and right measuring cursors slide along the X direction, and the middle sliding hole is arranged along the Y direction so that the middle measuring cursor slides along the Y direction.

[0045] Embodiment 2:

[0046] This embodiment is similar to Embodiment 1, except that, in this embodiment, Figure 1 , 2 As shown in , 5, two reinforcing rods 4 are provided between the first cross beam 1 and the second cross beam 2, and the two reinforcing rods 4 are respectively inclined and symmetrically arranged with the middle part of the first cross beam 1 as the axis, one end of the reinforcing rod 4 is connected to the first cross beam 1, and the other end of the reinforcing rod 4 is connected to the longitudinal beam 3.

[0047] In this embodiment, one end of the two reinforcing rods 4 is welded to the two ends of the first cross beam 1, and the other ends of the two reinforcing rods 4 are respectively inclined 45° toward the second cross beam 2 and welded to the connecting block and one end of the longitudinal beam 3, so that the structure of the frame body is more stable and less prone to deformation.

[0048] In this embodiment, a reinforcing rib 11 is provided at the connection between the longitudinal beam 3 and the first cross beam 1 to further enhance the structural strength of the connection.

[0049] Embodiment 3:

[0050] This embodiment is similar to Embodiment 1, except that, in this embodiment, Figure 1 , 2 As shown in , 5, a handle 10 is provided on the frame body.

[0051] In this embodiment, the two handles 10 are welded to the two longitudinal beams 3 respectively, and the technicians can conveniently lift the tooling by the two handles 10 , so that the technicians can measure the installation accuracy of multiple white bodies conveniently.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0053] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A tool for measuring the installation accuracy of an automobile front-end module, characterized in that: It comprises a frame body, a positioning component and a measuring component, wherein the positioning component is installed at both ends of the frame body for cooperating with the fenders (12) at both ends of the automobile for positioning, and the measuring component is installed at one side of the frame body for measuring the accuracy of the automobile front end module (13).

2. The automobile front-end module installation accuracy measuring tool according to claim 1, characterized in that: The frame body comprises a first crossbeam (1), two longitudinal beams (3) and a second crossbeam (2); the first crossbeam (1) and the second crossbeam (2) are arranged side by side; the first crossbeam (1) and the second crossbeam (2) are connected via the two longitudinal beams (3); the positioning assembly is mounted on two ends of the first crossbeam (1); and the measuring assembly is mounted on the second crossbeam (2) and corresponds to a detection point of a front-end module (13) of an automobile.

3. The automobile front-end module installation accuracy measuring tool according to claim 2, characterized in that: The positioning assembly comprises two positioning pins (5), positioning holes (101) are respectively provided at both ends of the first crossbeam (1), the two positioning pins (5) are respectively detachably connected to the positioning holes (101), and a gasket (6) is sleeved on the positioning pins (5).

4. The automobile front-end module installation accuracy measuring tool according to claim 2, characterized in that: The measuring component comprises three measuring cursors, two of which are respectively arranged at two ends of the second crossbeam (2), and the other measuring cursor is arranged at the middle of the second crossbeam (2).

5. The automobile front-end module installation accuracy measuring tool according to claim 4, characterized in that: The two measuring cursors located at the two ends of the second crossbeam (2) slide transversely along the length direction of the second crossbeam (2), and the measuring cursor located in the middle of the second crossbeam (2) slides transversely perpendicular to the length direction of the second crossbeam (2).

6. The automobile front-end module installation accuracy measuring tool according to claim 5, characterized in that: The measuring cursor comprises a measuring slide (7) and a measuring end (8), the measuring slide (7) being provided with a horizontal sliding hole, the measuring end (8) being slidably connected in the sliding hole, the measuring slide (7) being provided with a scale corresponding to the sliding hole, the second crossbeam (2) being respectively provided with three mounting holes for mounting the measuring slide (7), and each of the measuring slides (7) being respectively mounted in the mounting holes.

7. The automobile front-end module installation accuracy measuring tool according to claim 6, characterized in that: The measuring range of the ruler is ±5 mm and the accuracy is 0.1 mm.

8. The automobile front-end module installation accuracy measuring tool according to claim 3, characterized in that: The positioning assembly also includes a positioning block (9) disposed at the bottom of the second crossbeam (2) and abutting against the front-end module (13).

9. The automobile front-end module installation accuracy measuring tool according to claim 2, characterized in that: Two reinforcing rods (4) are provided between the first crossbeam (1) and the second crossbeam (2); the two reinforcing rods (4) are respectively arranged obliquely and symmetrically with the middle part of the first crossbeam (1) as an axis; one end of the reinforcing rod (4) is connected to the first crossbeam (1), and the other end of the reinforcing rod (4) is connected to the longitudinal beam (3).

10. The automobile front-end module installation accuracy measuring tool according to claim 1, characterized in that: A handle (10) is provided on the frame body.

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