Common testing fixture for double-vehicle engine hood assembly

Abstract

The utility model discloses a dual-vehicle engine hood assembly common detection tool, which comprises a positioning pin assembly, a reference surface assembly and a contour surface detection assembly, and is characterized in that the positioning pin assembly comprises a first positioning pin mounting seat (1), a second positioning pin mounting seat (2) and a positioning pin (3), the height of the first positioning pin mounting seat (1) is different from that of the second positioning pin mounting seat (2), and the height of the second positioning pin mounting seat (2) is different from that of the first positioning pin mounting seat (1); the positioning pin (3) is connected with the first positioning pin mounting seat (1) or the second positioning pin mounting seat (2) in an inserting manner, a reference surface (4) on the reference surface assembly has two working heights, and the contour surface detection assembly comprises a plurality of matrix type detection simulation devices and a plurality of symmetrical overturning detection simulation devices. According to the invention, engine hood assemblies of two vehicle types can be detected, the detection efficiency is effectively improved, and the detection quality can be ensured.

Description

[0001] The application relates to a gauge, in particular to a shared gauge for a hood assembly of two vehicle types.

[0002] In the current wave of automobile product platformization and architecture development, multiple vehicle types are developed simultaneously on the same platform, such as EV and PHEV vehicle types, which may result in changes in the modeling of hood assembly parts. Although current part measurement means are increasingly rich, optical scanning has become the mainstream force, but gauges are still essential in the debugging process of door cover assemblies.

[0003] In the prior art, most gauges correspond to single product parts, and the gauges are designed according to different vehicle types and different models. A small number of gauges can realize detection of different vehicle types, and the gauges need to be disassembled and replaced with simulation blocks when detecting different vehicle types. This mode has the problems of long disassembly and replacement time of simulation blocks, low detection efficiency, and high frequency of disassembly, which may also result in loss of gauge accuracy.

[0004] The application aims to provide a shared gauge for a hood assembly of two vehicle types to solve the technical problems in the prior art, which can realize detection of the hood assemblies of two vehicle types, effectively improve detection efficiency, and ensure detection quality.

[0005] The application provides a shared gauge for a hood assembly of two vehicle types, which comprises a positioning pin assembly, a reference surface assembly, and a contour surface detection assembly. The positioning pin assembly comprises a first positioning pin mounting seat, a second positioning pin mounting seat, and a positioning pin. The height of the first positioning pin mounting seat is different from that of the second positioning pin mounting seat. The positioning pin is in plug-in connection with the first positioning pin mounting seat or the second positioning pin mounting seat. The reference surface on the reference surface assembly has two working heights. The contour surface detection assembly comprises a plurality of matrix type detection simulation devices and a plurality of symmetrical flip detection simulation devices.

[0006] In the foregoing shared gauge for a hood assembly of two vehicle types, preferably, a first positioning pin mounting hole is formed in the top surface of the first positioning pin mounting seat, a second positioning pin mounting hole is formed in the top surface of the second positioning pin mounting seat, and a bushing is arranged in each of the first positioning pin mounting hole and the second positioning pin mounting hole.

[0007] In the foregoing shared gauge for a hood assembly of two vehicle types, preferably, the lower end of the positioning pin has a first mounting rod and a second mounting rod. One end of the first mounting rod is fixedly connected with the positioning pin, and the other end of the first mounting rod is fixedly connected with the second mounting rod. The positioning pin is coaxial with the first mounting rod and the second mounting rod. The diameter of the first mounting rod is greater than that of the second mounting rod.​​​

[0008] Preferably, the reference surface assembly comprises a reference surface mounting seat, a height adjusting rod and a reference rod, the reference surface mounting seat comprises a fixed part and a reference rod mounting part, a plurality of first mounting holes are formed on the fixed part, a reference rod mounting hole is vertically formed on the reference rod mounting part, an adjusting rod mounting hole is horizontally formed on the reference rod mounting part, the height adjusting rod is insertedly connected with the adjusting rod mounting hole, the top end of the reference rod has the reference surface, the lower end of the reference rod is insertedly connected with the reference rod mounting hole, and the lower end of the reference rod is slidingly matched with the top surface of the height adjusting rod.

[0009] Preferably, the top surface of the height adjusting rod is composed of a first support surface, a second support surface and an inclined transition surface, the first support surface is higher than the second support surface, and the first support surface is connected with the second support surface through the inclined transition surface.

[0010] Preferably, the adjusting rod mounting hole is a rectangular hole, the cross-sectional shape of the height adjusting rod is rectangular, and the left side surface, the right side surface and the bottom surface of the height adjusting rod are all in contact with the inner wall of the adjusting rod mounting hole.

[0011] Preferably, the matrix type detection simulation device comprises a first turnover base and a matrix type detection simulation block, the matrix type detection simulation block is fixedly installed on the first turnover base, and the top surface of the matrix type detection simulation block is composed of alternately arranged first and second cover contour detection surfaces.

[0012] Preferably, the symmetrical turnover detection simulation device comprises a second turnover base and a third turnover base, the first cover contour detection simulation block is installed on the second turnover base, and the second cover contour detection simulation block is installed on the third turnover base.

[0013] Preferably, the first turnover base, the second turnover base and the third turnover base are completely the same in structure, and they all comprise a bottom plate, a U-shaped column, a turnover rod and a hand screw bolt, the U-shaped column is fixedly arranged on the bottom plate, the opening of the U-shaped column faces the side surface, the lower end of the turnover rod is rotationally connected with the U-shaped column through a rotating shaft, a first threaded hole is arranged on the turnover rod, a second threaded hole is arranged on the U-shaped column, the first threaded hole is coaxial with the second threaded hole when the turnover rod is in a vertical position, and the hand screw bolt is threadedly connected with the first threaded hole and the second threaded hole.

[0014] Preferably, the bottom plate is provided with a limiting protrusion for limiting the turning angle of the turning rod.

[0015] Compared with the prior art, the application comprises a positioning pin assembly, a reference surface assembly and a profile surface detection assembly, wherein the positioning pin assembly comprises a first positioning pin mounting seat, a second positioning pin mounting seat and a positioning pin, the first positioning pin mounting seat is different in height from the second positioning pin mounting seat, the positioning pin is mounted on the first positioning pin mounting seat to position the hood assembly of the first vehicle model, and the positioning pin is mounted on the second positioning pin mounting seat to position the hood assembly of the second vehicle model; the reference surface of the reference surface assembly has two working heights, the reference surface is used for the hood assembly of the first vehicle model when being located at the first working height, and is used for the hood assembly of the second vehicle model when being located at the second working height; the profile surface detection assembly comprises a plurality of matrix type detection simulation devices and a plurality of symmetrical turning detection simulation devices. The profile surface Y-direction difference of the hood assemblies of the two vehicle models is less than 3mm, and the profile surface Z-direction difference is less than 5mm, and the profile detection can be detected by the matrix type detection simulation device; for the area with larger profile surface difference, the symmetrical turning detection simulation device can be used for detection. The application does not need to replace the simulation block, effectively improves the detection efficiency and can ensure the detection precision. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of the overall structure of the application;

[0018] Figure 2 is an axonometric view of the positioning pin assembly;

[0019] Figure 3 is an axonometric view of the reference surface assembly;

[0020] Figure 4 is an axonometric view of the matrix type detection simulation device;

[0021] Figure 5 is an axonometric view of the symmetrical turning detection simulation device;

[0022] Figure 6 is an axonometric view of the turning base.

[0023] Explanation of reference signs: first positioning pin mounting seat 1, second positioning pin mounting seat 2, positioning pin 3, reference surface 4, first positioning pin mounting hole 5, bushing 6, first mounting rod 7, second mounting rod 8, reference surface mounting seat 9, height adjusting rod 10, reference rod 11, first mounting hole 12, reference rod mounting hole 13, adjusting rod mounting hole 14, matrix type detection simulation block 15, first hood contour detection surface 16, second hood contour detection surface 17, second turnover base 18, third turnover base 19, first hood contour detection simulation block 20, second hood contour detection simulation block 21, bottom plate 22, U-shaped stand 23, turnover rod 24, hand screw bolt 25, limiting protrusion 26, first turnover base 27, second positioning pin mounting hole 28, handle 29, T-shaped adapter block 30, operating rod 31, long hole 32, limiting rod 33. DETAILED DESCRIPTION

[0024] Embodiments of the present application are described in detail below with reference to examples thereof shown in the attached drawings, wherein the same or similar reference numerals are used throughout the drawings and identical or similar elements or elements having the same or similar functions are denoted with the same or similar reference numerals. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be interpreted as a limitation on the present application.

[0025] As shown in the embodiment of the present application, Figures 1-6 A double-car-type hood assembly common gauge includes a positioning pin assembly, a reference surface assembly, and a contour surface detection assembly. The positioning pin assembly includes a first positioning pin mounting seat 1, a second positioning pin mounting seat 2, and a positioning pin 3. The first positioning pin mounting seat 1 is different in height from the second positioning pin mounting seat 2. The positioning pin 3 is connected to the first positioning pin mounting seat 1 or the second positioning pin mounting seat 2 in a plug-in manner. The reference surface 4 on the reference surface assembly has two working heights. The contour surface detection assembly includes a plurality of matrix type detection simulation devices and a plurality of symmetrical turnover detection simulation devices.

[0026] The number of positioning pin assemblies is multiple. The number and position of the positioning pin assemblies are arranged according to actual requirements. In the present embodiment, two sets of positioning pin assemblies are preferably arranged. The two sets of positioning pin assemblies are symmetrically arranged left and right. Each set of positioning pin assemblies includes a first positioning pin mounting seat 1, a second positioning pin mounting seat 2, and a positioning pin 3. When detecting a hood assembly of a first vehicle type, the positioning pin 3 is installed on the first positioning pin mounting seat 1. At this time, the positioning pin 3 can position the hood assembly of the first vehicle type. When detecting a hood assembly of a second vehicle type, the positioning pin 3 is removed from the first positioning pin mounting seat 1 and installed on the second positioning pin mounting seat 2. The positioning pin 3 can position the hood assembly of the second vehicle type.

[0027] The top surface of the first positioning pin mounting seat 1 is higher than the top surface of the second positioning pin mounting seat 2 in the embodiment. In addition, it should be noted that the support assembly for supporting the hood assembly is prior art, and the embodiment will not be described in detail. The positioning pin assembly and the reference surface assembly are both mounted on the support column, which is also prior art, and the specific structure of the support column will not be described in detail in the embodiment.

[0028] In a specific embodiment, a first positioning pin mounting hole 5 is formed in the top surface of the first positioning pin mounting seat 1, and a second positioning pin mounting hole 28 is formed in the top surface of the second positioning pin mounting seat 2. A bushing 6 is arranged in the first positioning pin mounting hole 5 and the second positioning pin mounting hole 28. The arrangement of the bushing 6 can improve the installation accuracy of the positioning pin 3 and facilitate the insertion and removal of the positioning pin 3.

[0029] The lower end of the positioning pin 3 has a first mounting rod 7 and a second mounting rod 8. One end of the first mounting rod 7 is fixedly connected to the positioning pin 3, and the other end of the first mounting rod 7 is fixedly connected to the second mounting rod 8. The positioning pin 3 is coaxial with the first mounting rod 7 and the second mounting rod 8. The diameter of the first mounting rod 7 is greater than the diameter of the second mounting rod 8.

[0030] The first positioning pin mounting hole 5 and the second positioning pin mounting hole 28 are the same size, both being stepped holes with a large upper part and a small lower part. The inner diameter of the bushing 6 is equal to the diameter of the first mounting rod 7. When installing the positioning pin 3, the first mounting rod 7 on the positioning pin 3 is connected to the bushing 6, and the second mounting rod 8 is connected to the smaller part of the stepped hole. Since the diameter of the first mounting rod 7 is greater than the diameter of the second mounting rod 8, the connection position forms a limiting surface. When the limiting surface abuts against the stepped surface of the stepped hole, the positioning pin 3 is inserted into place.

[0031] Further, the number of reference surface assemblies is also multiple, and the positions of the reference surface assemblies are arranged according to actual needs. The reference surface 4 on the reference surface assembly has two working heights, namely a first working height and a second working height. The reference surface 4 is used for the hood assembly of vehicle type one when it is at the first working height, and is used for the hood assembly of vehicle type two when it is at the second working height.

[0032] Specifically, the reference surface assembly includes a reference surface mounting seat 9, a height adjusting rod 10, and a reference rod 11. The reference surface mounting seat 9 includes a fixed part and a reference rod mounting part. A plurality of first mounting holes 12 are formed in the fixed part. A reference rod mounting hole 13 is vertically formed in the reference rod mounting part. An adjusting rod mounting hole 14 is horizontally formed in the reference rod mounting part. The height adjusting rod 10 is inserted into the adjusting rod mounting hole 14 and can slide in the adjusting rod mounting hole 14. The reference rod 11 has a reference surface 4 at the top end. The lower end of the reference rod 11 is inserted into and slidably connected to the reference rod mounting hole 13. The lower end of the reference rod 11 is slidably connected to the top surface of the height adjusting rod 10.

[0033] The height adjustment lever 10 is used to adjust the height of the reference lever 11, and the height adjustment of the reference surface 4 is realized by changing the height of the reference lever 11, so that the reference surface 4 can be switched between the first working height and the second working height.

[0034] The top surface of the height adjustment lever 10 is composed of a first support surface, a second support surface and an inclined transition surface, the first support surface is higher than the second support surface, and the first support surface is connected with the second support surface through the inclined transition surface. When the lower end of the reference lever 11 is in contact with the first support surface, at this time the reference surface 4 is located at the first working height, and the height adjustment lever 10 is moved so that the second support surface is located below the reference lever 11, the reference lever 11 is lowered, and the lower end of the reference lever 11 is in contact with the second support surface, at this time the reference surface 4 is located at the second working height.

[0035] In order to prevent the height adjustment lever 10 from rotating when moving horizontally, the adjustment lever mounting hole 14 is designed as a rectangular hole in this embodiment, the cross-sectional shape of the height adjustment lever 10 is designed as a rectangle, the left side surface, the right side surface and the bottom surface of the height adjustment lever 10 are respectively in contact with the left side surface, the right side surface and the bottom surface of the adjustment lever mounting hole 14, and the top surface of the height adjustment lever 10 is always not in contact with the top surface of the adjustment lever mounting hole 14. One end of the height adjustment lever 10 is provided with an operating lever 31.

[0036] In a preferred scheme, in order to prevent the height adjustment lever 10 from moving excessively and separating from the adjustment lever mounting hole 14, a long hole 32 is opened on the height adjustment lever 10, the long hole 32 is vertically opened and penetrates the top surface and the bottom surface of the height adjustment lever 10, and in the length direction of the height adjustment lever 10, one end of the long hole 32 extends to the first support surface, and the other end of the long hole 32 extends to the second support surface. The bottom surface of the reference lever 11 is fixedly provided with a limiting lever 33, and the limiting lever 33 penetrates the long hole 32.

[0037] When the limiting lever 33 of the bottom of the reference lever 11 is in abutment with one end of the long hole 32 away from the operating lever 31 during the movement of the height adjustment lever 10, the second support surface is located at the lower end of the reference lever 11, and the reference lever 11 is located at the second working height. When the height adjustment lever 10 is moved reversely, the limiting lever 33 is in abutment with the other end of the long hole 32, the first support surface is located at the lower end of the reference lever 11, and the reference lever 11 is located at the first working height. During the movement of the height adjustment lever 10, due to the existence of the inclined transition surface, there is no problem of jamming.

[0038] Further, the contour detection of the two vehicle type hood assembly profile surface Y falls less than 3mm, Z falls less than 5mm contour detection can be detected by matrix type detection simulation device.

[0039] The matrix type detection simulation device comprises a first turnover base 27 and a matrix type detection simulation block 15, the matrix type detection simulation block 15 is fixedly installed on the first turnover base 27, and the top surface of the matrix type detection simulation block 15 is composed of alternately arranged first hood contour detection surfaces 16 and second hood contour detection surfaces 17.

[0040] The first hood contour detection surfaces 16 are used for contour detection of a hood assembly of a first vehicle type, and the second hood contour detection surfaces 17 are used for contour detection of a hood assembly of a second vehicle type.

[0041] 50mm is a standard dense type of measuring point, therefore, 50mm is selected as the length of the first hood contour detection surfaces 16 and the second hood contour detection surfaces 17, that is, the distance between any two adjacent first hood contour detection surfaces 16 is 50mm, and the distance between any two adjacent second hood contour detection surfaces 17 is also 50mm.

[0042] When the contour surface difference of the hood assembly parts of the two vehicle types is greater than 5mm and less than 50mm, it is inconvenient to detect by using the matrix type detection simulation device, and therefore, the symmetric turnover detection simulation device needs to be used for detection.

[0043] The symmetric turnover detection simulation device comprises a second turnover base 18 and a third turnover base 19, the first hood contour detection simulation block 20 is installed on the second turnover base 18, and the second hood contour detection simulation block 21 is installed on the third turnover base 19.

[0044] When the hood assembly of the first vehicle type needs to be detected, the first hood contour detection simulation block 20 is adjusted to the highest position through the second turnover base 18, and the second hood contour detection simulation block 21 is adjusted to the lowest position through the third turnover base 19, at this time, the second hood contour detection simulation block 21 does not participate in work and does not interfere with the hood assembly of the first vehicle type.

[0045] When the hood assembly of the second vehicle type needs to be detected, the first hood contour detection simulation block 20 is adjusted to the lowest position through the second turnover base 18, and the second hood contour detection simulation block 21 is adjusted to the highest position through the third turnover base 19, at this time, the first hood contour detection simulation block 21 does not participate in work and does not interfere with the hood assembly of the second vehicle type.

[0046] In the embodiment, the turnover directions of the second turnover base 18 and the third turnover base 19 are opposite.

[0047] The first turnover base 27, the second turnover base 18 and the third turnover base 19 are completely same in structure, and each comprises a bottom plate 22, a U-shaped column 23, a turnover rod 24 and a hand screw bolt 25, the U-shaped column 23 is fixedly arranged on the bottom plate 22, the opening of the U-shaped column 23 faces the side, the lower end of the turnover rod 24 is rotationally connected with the U-shaped column 23 through a rotating shaft, the turnover rod 24 is provided with a first threaded hole, the U-shaped column 23 is provided with a second threaded hole, the first threaded hole is coaxial with the second threaded hole when the turnover rod 24 is in a vertical position, and the hand screw bolt 25 is threadedly connected with the first threaded hole and the second threaded hole.

[0048] The first turnover base 27, the second turnover base 18 and the third turnover base 19 are completely same in structure, and each comprises a bottom plate 22, a U-shaped column 23, a turnover rod 24 and a hand screw bolt 25, the U-shaped column 23 is fixedly arranged on the bottom plate 22, the opening of the U-shaped column 23 faces the side, the lower end of the turnover rod 24 is rotationally connected with the U-shaped column 23 through a rotating shaft, the turnover rod 24 is provided with a first threaded hole, the U-shaped column 23 is provided with a second threaded hole, the first threaded hole is coaxial with the second threaded hole when the turnover rod 24 is in a vertical position, and the hand screw bolt 25 is threadedly connected with the first threaded hole and the second threaded hole.

[0049] In order to facilitate the operation of the turnover rod 24, a handle 29 is preferably arranged on the upper end of the turnover rod 24. In addition, since the heights required by different detection simulation blocks are different, a T-shaped adapter block 30 is preferably fixedly arranged on the upper end of the turnover rod 24, a plurality of mounting holes with different heights are formed in the T-shaped adapter block 30, and the height of the T-shaped adapter block 30 on the turnover rod 24 can be changed according to requirements.

[0050] Preferably, a limiting protrusion 26 is formed on the bottom plate 22, and the limiting protrusion 26 is used for limiting the turnover angle of the turnover rod 24. The top end of the limiting protrusion 26 has an inclined supporting surface. When the turnover rod 24 is turned to a certain angle and abuts against the inclined supporting surface of the limiting protrusion 26, the turnover rod 24 cannot continue to move. Through the arrangement of the limiting protrusion 26, the turnover rod 24 can be prevented from being turned to a horizontal state, so that the detection simulation blocks can be prevented from being bumped, and the detection accuracy is ensured.

[0051] The utility model discloses a height -adjustable datum plane subassembly and matrix type detection simulation device and symmetrical turnover detection simulation device are arranged, and the scheme that the datum plane and simulation block need to be repeatedly disassembled when switching the vehicle type in the prior art is replaced, the detection efficiency of the utility model is higher, and the problem that the simulation block is easy to wear in the prior art is effectively solved, thereby guaranteeing the detection accuracy.

[0052] The above detailed the structure, features and effect of the present application according to the embodiments shown in the drawings, the above is only a preferred embodiment of the present application, but the present application is not limited by the drawings shown in the implementation range, any change or modification according to the concept of the present application, or the equivalent embodiment of equivalent change, still not beyond the spirit of the specification and drawings, should be within the scope of the present application.

Claims

1. A dual vehicle engine cover assembly common gauge, comprising: The positioning pin assembly, the reference surface assembly and the profile surface detection assembly are characterized in that: the positioning pin assembly comprises a first positioning pin mounting seat (1), a second positioning pin mounting seat (2) and a positioning pin (3), the height of the first positioning pin mounting seat (1) is different from that of the second positioning pin mounting seat (2), the positioning pin (3) is in plug-in connection with the first positioning pin mounting seat (1) or the second positioning pin mounting seat (2), the reference surface (4) on the reference surface assembly has two working heights, and the profile surface detection assembly comprises a plurality of matrix type detection simulation devices and a plurality of symmetrical flip detection simulation devices.

2. The dual bike fairing assembly gage of claim 1, wherein: A first positioning pin mounting hole (5) is formed in the top surface of the first positioning pin mounting seat (1), a second positioning pin mounting hole (28) is formed in the top surface of the second positioning pin mounting seat (2), and a bushing (6) is arranged in the first positioning pin mounting hole (5) and the second positioning pin mounting hole (28).

3. The dual bike fairing assembly gage of claim 2, wherein: The lower end of the positioning pin (3) is provided with a first mounting rod (7) and a second mounting rod (8), one end of the first mounting rod (7) is fixedly connected with the positioning pin (3), the other end of the first mounting rod (7) is fixedly connected with the second mounting rod (8), the positioning pin (3) is coaxial with the first mounting rod (7) and the second mounting rod (8), and the diameter of the first mounting rod (7) is greater than that of the second mounting rod (8).

4. The dual vehicle hood assembly gage of claim 1, wherein: The reference surface assembly comprises a reference surface mounting seat (9), a height adjusting rod (10) and a reference rod (11), the reference surface mounting seat (9) comprises a fixed part and a reference rod mounting part, a plurality of first mounting holes (12) are formed in the fixed part, a reference rod mounting hole (13) is vertically formed in the reference rod mounting part, an adjusting rod mounting hole (14) is horizontally formed in the reference rod mounting part, the height adjusting rod (10) is in plug-in connection with the adjusting rod mounting hole (14), the top end of the reference rod (11) is provided with the reference surface (4), the lower end of the reference rod (11) is in plug-in connection with the reference rod mounting hole (13), and the lower end of the reference rod (11) is in sliding fit with the top surface of the height adjusting rod (10).

5. The dual bike fairing assembly gage of claim 4, wherein: The top surface of the height adjusting rod (10) is composed of a first support surface, a second support surface and an inclined transition surface, the first support surface is higher than the second support surface, and the first support surface is connected with the second support surface through the inclined transition surface.

6. The dual bike fairing assembly gage of claim 5, wherein: The adjusting rod mounting hole (14) is a rectangular hole, the cross section of the height adjusting rod (10) is rectangular, and the left side surface, the right side surface and the bottom surface of the height adjusting rod (10) are in contact with the inner wall of the adjusting rod mounting hole (14).

7. The dual vehicle engine cover assembly gage of claim 1, wherein: The matrix type detection simulation device comprises a first flip base (27) and a matrix type detection simulation block (15), the matrix type detection simulation block (15) is fixedly installed on the first flip base (27), and the top surface of the matrix type detection simulation block (15) is composed of alternately arranged first cover contour detection surfaces (16) and second cover contour detection surfaces (17).

8. The dual bike fairing assembly gage of claim 7, wherein: The symmetrical flip detection simulation device comprises a second flip base (18) and a third flip base (19), the first cover contour detection simulation block (20) is installed on the second flip base (18), and the second cover contour detection simulation block (21) is installed on the third flip base (19).

9. The dual bike fairing assembly gage of claim 8, wherein: The first flip base (27), the second flip base (18) and the third flip base (19) are completely same in structure, and each comprises a bottom plate (22), a U-shaped column (23), a flip rod (24) and a hand screw bolt (25), the U-shaped column (23) is fixed on the bottom plate (22), the opening of the U-shaped column (23) faces the side, the lower end of the flip rod (24) is rotationally connected with the U-shaped column (23) through a rotating shaft, the first threaded hole is arranged on the flip rod (24), the second threaded hole is arranged on the U-shaped column (23), the first threaded hole is coaxial with the second threaded hole when the flip rod (24) is in a vertical position, and the hand screw bolt (25) is threadedly connected with the first threaded hole and the second threaded hole.

10. The dual bike fairing assembly gage of claim 9, wherein: The limiting protrusion (26) is formed on the bottom plate (22), and is used for limiting the flip angle of the flip rod (24).

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