Measuring table flange and measuring tool

Abstract

The utility model provides a measuring table flange and a measuring tool, and relates to the measuring device technology field, the measuring table flange comprises a flange body and a plurality of support strips, the plurality of support strips are respectively connected with the flange body and are vertical to the axial direction of the flange body, the support strips are arranged at intervals, and one end surface of each support strip along the axial direction of the flange body is configured as a support surface. According to the utility model, the linear supporting surfaces formed by the plurality of supporting strips arranged at intervals support the to-be-measured member of the wheel hub together, so that compared with an existing disc-shaped measuring table flange which takes the axial end surface of the flange body as the supporting surface, the total area of the supporting surfaces formed by the plurality of supporting strips is relatively small; according to the technical scheme of the utility model, the supporting strips are arranged on the supporting surfaces, and the supporting surfaces are linear and mutually spaced, so that aluminum scraps carried in the wheel hub machining process basically fall into the spacing areas among the supporting strips, the aluminum scraps are not easy to accumulate on the supporting strips, the flange surface of the wheel hub can be ensured to be completely attached to the supporting surfaces, and the thickness of the wheel hub at the circumferential edge of the central hole of the wheel hub can be conveniently and accurately measured.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring devices, in particular to a measuring platform flange and a measuring tool. Background Art

[0002] The wheel hub is provided with a hub center hole in the middle, and a hub flange surface is formed at the circumferential edge of the hub center hole on the side of the wheel hub facing the inside of the vehicle. The hub flange surface is connected to the vehicle body through the hub flange, and a cap stop can be formed at the end of the hub center hole facing the outside of the vehicle, which is used to install a cap with a brand logo. The thickness data of the circumferential edge of the hub center hole is used as a reference during the processing of the cap stop. In order to ensure that the processing size of the cap stop meets the requirements and the cap can be assembled smoothly, after the processing of the hub center hole and other parts of the wheel hub is completed, the thickness of the circumferential edge of the hub center hole needs to be accurately measured.

[0003] The thickness of the circumferential edge of the hub center hole is generally measured using a measuring tool. The existing measuring tool includes a bracket, a test bench flange and a measuring head. The test bench flange and the measuring head are respectively fixed on the bracket. The measuring head and the test bench flange are arranged up and down, with the upper surface of the test bench flange as the reference surface. When the wheel hub that has completed the hub center hole processing is placed on the test bench flange, the processing debris carried on the surface of the wheel hub falls and accumulates on the reference surface of the test bench flange, resulting in the hub flange surface and the reference surface cannot be completely fitted together. Furthermore, when the measuring head moves downward to contact the circumferential edge of the hub center hole of the wheel hub, the accuracy of the thickness data of the circumferential edge of the hub center hole measured is poor, and the processing accuracy of the cap stop and the smooth assembly of the cap cover cannot be guaranteed. Utility Model Content

[0004] The utility model aims to solve the technical problem that the flange of the existing measuring platform cannot be completely fitted with the flange surface of the wheel hub due to the accumulation of debris, resulting in poor accuracy in thickness measurement of the circumferential edge of the center hole of the wheel hub.

[0005] On the one hand, the utility model provides a test bench flange, including a flange body and support bars, wherein a plurality of support bars are respectively connected to the flange body and are perpendicular to the axial direction of the flange body, the support bars are arranged at intervals, and an end face of each support bar along the axial direction of the flange body is configured as a support surface.

[0006] Optionally, the supporting surface is a convex arc surface.

[0007] Optionally, the support bars are arranged at intervals along the circumference of the flange body, and the support bars are respectively extended along the radial direction of the flange body.

[0008] Optionally, a plurality of the support bars are respectively arranged on the axial end surface of the flange body, and a surface of each of the support bars away from the flange body is configured as the support surface.

[0009] Optionally, the test bench flange also includes a guide column, and the guide column extending axially is provided in the middle part of the flange body, and the guide column is used to be inserted into the center hole of the wheel hub; each of the support bars is arranged at intervals along the circumference of the guide column, and there is a preset gap between the support bar and the guide column.

[0010] Optionally, one end of the support bar away from the guide column extends out of the flange body.

[0011] Optionally, the number of the support bars is different from the number of the weight-reducing grooves on the wheel hub.

[0012] Optionally, a through hole is provided on the test platform flange, and the through hole includes a first through hole and a second through hole respectively penetrating the flange body and the guide column, and a first air avoidance hole is provided on the circumferential hole wall of the second through hole.

[0013] On the other hand, the utility model proposes a measuring tool, including a supporting platform, a first measuring head and the above-mentioned measuring platform flange, the measuring platform flange is installed on the supporting platform, the first measuring head is arranged on the side of the measuring platform flange away from the supporting platform, and the first measuring head is used to move in a direction close to or away from the measuring platform flange.

[0014] Optionally, the measuring tool further comprises an air blowing pipeline, a groove is provided on the support platform at a position corresponding to the measuring platform flange, one end of the air blowing pipeline is inserted into the groove, and is connected with the through hole of the measuring platform flange through the groove;

[0015] And / or, it also includes a second measuring head, which is a center aperture measuring head. The second measuring head is placed on the supporting platform and is used to extend from the first avoidance hole of the measuring platform flange.

[0016] The test platform flange of the utility model has at least the following advantages compared with the prior art:

[0017] A plurality of support strips are respectively connected to the flange body, and each support strip is perpendicular to the axial direction of the flange body, and an end face of each support strip along the axial direction of the flange body is linear, and the linear end face is configured as a support surface, and the linear support surface formed by a plurality of spaced support strips is used to jointly support the wheel hub waiting to be measured. Compared with the existing disc-shaped measuring table flange using the axial end face of the flange body as the support surface, the total area of ​​the support surface formed by the plurality of support strips in the utility model is relatively small, and each support surface is linear and spaced from each other. Furthermore, aluminum chips carried during the processing of the wheel hub will basically fall into the spaced area between the support strips, and aluminum chips are not easy to accumulate on the support strips. In other words, aluminum chips are not easy to accumulate on the support surface formed by the plurality of support strips. Therefore, it can ensure that the wheel hub flange surface is completely fitted with the support surface, which is convenient for measuring the thickness of the wheel hub at the circumferential edge of the hub center hole, thereby ensuring the processing accuracy of the cap stop and the smooth assembly of the cap cover. Furthermore, since aluminum chips are not likely to accumulate on the support surface formed by the multiple support bars, the flange of the measuring table does not need to be manually cleaned regularly or the frequency of manual cleaning can be greatly reduced, thereby improving measurement efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the measuring tool of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the test platform flange of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the measuring tool of the embodiment of the utility model when measuring a wheel hub;

[0022] Figure 5 for Figure 4 A cross-sectional view of

[0023] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0024] Figure 7 It is a schematic diagram of the assembly of the test platform flange and the wheel hub according to an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Test platform flange; 11. Flange body; 111. Positioning hole; 112. First through hole; 113. Second air avoidance hole; 12. Support bar; 121. Arc surface; 13. Guide column; 131. Second through hole; 132. First air avoidance hole; 2. Support platform; 21. Positioning column; 22. Groove; 3. First measuring head; 4. Bracket; 5. Wheel hub; 51. Center hole of wheel hub; 52. Weight reduction groove; 6. Air blowing pipeline. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, it should be noted that in the description of the present invention, it should be noted that the terminology nouns in the various embodiments, such as "upper", "lower", "front", "back" and other words indicating directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the components and devices referred to must be operated in accordance with the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute a limitation on the present invention.

[0030] In this article, a Z axis is established, wherein the positive direction of the Z axis represents the upper direction, and the negative direction of the Z axis represents the lower direction. It should be noted that the aforementioned Z axis is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Some existing technologies have provided hollow holes on the disc-shaped test platform flange so that aluminum chips carried during the wheel hub processing process can fall through the hollow holes, thereby avoiding aluminum chips remaining on the reference surface of the test platform flange. However, in reality, the effect of aluminum chips falling through the hollow holes is not ideal, and most of them will still accumulate on the reference surface of the test platform flange, making it impossible for the wheel hub flange surface to completely fit the reference surface of the test platform flange, resulting in inaccurate thickness measurement of the circumferential edge of the wheel hub center hole.

[0032] like Figure 1-Figure 3As shown, a test bench flange 1 of an embodiment of the utility model includes a flange body 11 and a support bar 12. A plurality of flange bodies 11 are respectively connected to the flange body 11 and are perpendicular to the axial direction of the flange body 11. The support bars 12 are arranged at intervals, and an end face of each support bar 12 along the axial direction of the flange body 11 is configured as a support surface.

[0033] Specifically, the flange body 11 is a horizontally arranged disc-shaped structure, the axial direction of the flange body 11 is the direction indicated by the Z axis, the flange body 11 and the first measuring head 3 can be arranged up and down, the flange body 11 is located below the first measuring head 3, the flange body 11 is connected to a plurality of support bars 12, and the flange body 11 and the support bars 12 can be integrally formed to simplify the process and improve the strength. The support bar 12 can be a long strip, the support bar 12 is perpendicular to the axial direction of the flange body 11, that is, the extension direction of the support bar 12 is perpendicular to the axial direction of the flange body 11, and the support height direction of the support bar 12 is the direction indicated by the Z axis. The number of support bars 12 can be flexibly set according to the support needs. The upper surface of the support bar 12 is configured as a support surface, that is, the test platform flange 1 of this embodiment supports the wheel hub through a plurality of support bars 12.

[0034] In this embodiment, a plurality of support bars 12 are respectively connected to the flange body 11, and each support bar 12 is perpendicular to the axial direction of the flange body 11. One end face of each support bar 12 along the axial direction of the flange body 11 is linear, and the linear end face is configured as a support surface. The linear support surface formed by the plurality of spaced support bars 12 can jointly support the wheel hub 5 to be measured. When the to-be-measured part, such as the wheel hub 5 with the processed wheel hub center hole 51, is placed on the measuring table flange 1, as shown in FIG. Figure 4-6 As shown, the wheel hub 5 can be supported by the support surface formed by the multiple support bars 12. Compared with the disc-shaped test platform flange, which uses the axial end surface of the flange body as the support surface, the total area of ​​the support surface formed by the multiple support bars 12 in this embodiment is relatively small, and each support surface is linear and spaced from each other. Therefore, the aluminum chips carried during the processing of the wheel hub 5 will basically fall into the interval area between the support bars 12, and the aluminum chips are not easy to accumulate on the support bars 12. In other words, the aluminum chips are not easy to accumulate on the support surface formed by the multiple support bars 12. Therefore, it can be ensured that the wheel hub flange surface and the support surface are completely fitted, which is convenient for accurately measuring the thickness of the wheel hub 5 at the circumferential edge of the wheel hub center hole 51, thereby ensuring the processing accuracy of the cap stop and the smooth assembly of the cap. In addition, since the aluminum chips are not easy to accumulate on the support surface formed by the multiple support bars 12, the test platform flange does not need to be manually cleaned regularly or the frequency of manual cleaning can be greatly reduced, thereby improving the measurement efficiency and reducing the labor cost.

[0035] It should be noted that the principle of moving the first measuring head 3 to clamp the workpiece to be measured, such as a wheel hub, between the reference surface and the first measuring head 3 to measure its thickness is similar to the measurement principle of a vernier caliper.

[0036] Optionally, the supporting surface is a convex arc surface 121 .

[0037] Specifically, the projection of the support surface on a plane perpendicular to the extension direction of the support bar 12 is an arc line, or in other words, in the cross-sectional profile of the support bar 12, the profile of the support surface is an arc line convex outward.

[0038] The central angle of the arc surface 121 can be 180°, 90°, etc., that is, the arc surface can be a semicircular surface, a quarter arc surface, etc. The tops of the arc surfaces are located on the same plane to jointly support the wheel hub 5. At the same time, the aluminum chips carried during the processing of the wheel hub 5 can fall along the arc surface 121 after falling on the support bar 12, and the aluminum chips are not easy to accumulate on the support bar 12, which can ensure that the wheel hub flange surface is completely in contact with the reference surface, and facilitate accurate measurement of the thickness of the wheel hub 5 at the circumferential edge of the wheel hub center hole 51, thereby ensuring the processing accuracy of the cap stop and the smooth assembly of the cap.

[0039] like Figure 2 , Figure 3 and Figure 7 As shown, optionally, each of the support bars 12 is arranged at intervals along the circumference of the flange body 11 , and each of the support bars 12 is extended along the radial direction of the flange body 11 .

[0040] In this embodiment, a plurality of radially extending support bars 12 are arranged at circumferential intervals on the flange body 11 , and the support bars 12 jointly support the wheel hub 5 . The test platform flange 1 is evenly stressed, and the support stability of the wheel hub 5 is better.

[0041] Optionally, the plurality of support bars 12 are evenly distributed along the circumference of the flange body 11. That is, each support bar 12 extends along the radial direction of the flange body 11, and the angles between adjacent support bars 12 are equal.

[0042] Optionally, a plurality of the support bars 12 are respectively arranged on the axial end surface of the flange body 11 , and a surface of each of the support bars 12 away from the flange body 11 is configured as the support surface.

[0043] In this embodiment, the flange body 11 carries a plurality of support bars 12 , so that the strength of the entire test platform flange 1 can be higher and the overall structure can be more stable.

[0044] Of course, the support strips 12 are not limited to being arranged on the axial end face of the flange body 11. In other embodiments, a plurality of support strips 12 are arranged at intervals along the circumferential side of the flange body 11, each support strip 12 is arranged to extend radially along the flange body 11, and one end of each support strip 12 is respectively connected to the circumferential side wall of the flange body 11. If the radial dimension of the flange body 11 is small, to be precise, smaller than or equal to the hub center hole 51 of the wheel hub 5, the upper surface of the support strip 12 may be flush with or higher or lower than the upper end face of the flange body 11. When the wheel hub 5 is placed on the test platform flange, the flange body 11 and the upper surface of the hub center hole 51 are aligned with each other. The support strips 12 are inserted into the center hole 51 of the wheel hub 5 and are relatively or partially inserted below the wheel hub. At this time, the wheel hub 5 is still supported by the support strips. If the radial dimension of the flange body 11 is larger, or more precisely, larger than the center hole 51 of the wheel hub 5, the upper surface of the support strips 12 needs to be higher than the upper end surface of the flange body 11. When the wheel hub 5 is placed on the flange of the measuring table, the flange body 11 is opposite to the middle part of the wheel hub 5, but is not in close contact with the wheel hub 5. The processing debris on the wheel hub 5 may fall into the flange body 11 or the interval area between adjacent support strips 12.

[0045] like Figure 2 , Figure 3 and Figure 6 As shown, optionally, the test bench flange also includes a guide column 13, and the guide column 13 extending axially is provided in the middle of the flange body 11, and the guide column 13 is used to be inserted into the hub center hole 51 of the wheel hub 5; each of the support bars 12 is arranged at intervals along the circumference of the guide column 13, and there is a preset gap between the support bar 12 and the guide column 13.

[0046] Specifically, an upwardly disposed guide column 13 is provided in the middle of the upper end surface of the flange body 11 . The guide column 13 may be a cylinder or a prism, and the cross-sectional dimension of the guide column 13 is smaller than or equal to the dimension of the hub center hole 51 .

[0047] In this embodiment, when the robot or manual operator places the wheel hub 5 with the processed wheel hub center hole 51 on the test platform flange 1 from top to bottom, the wheel hub center hole 51 is aligned with the guide column 13, and the guide column 13 and the wheel hub center hole 51 are plugged and guided, so that the wheel hub 5 can be quickly and accurately placed on the test platform flange 1. Here, the upward end of the guide column 13 can form a guiding cone surface to improve the guiding effect.

[0048] Each support bar 12 is arranged at intervals along the circumference of the guide column 13, and a preset gap is provided between the end of the support bar 12 facing the inside of the flange body 11 and the guide column 13 to form an avoidance, which can prevent aluminum chips on the wheel hub 5 from accumulating in the corner surrounded by the support bar 12 and the guide column 13, ensure that the hub flange surface and the reference surface formed by each support bar 12 can be completely fitted, and facilitate the cleaning of aluminum chips on the flange body 11.

[0049] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, optionally, one end of the support bar 12 away from the guide column 13 extends out of the flange body 11 .

[0050] Specifically, one end of the support bar 12 away from the guide column 13 extends out of the flange body 11, and each support bar 12 extends radially along the flange body 11 and is arranged to be longer, so as to improve the supporting stability of the support bar 12 on the wheel hub 5 when the size of the flange body 11 remains unchanged.

[0051] like Figure 7 As shown, optionally, the number of the support bars 12 is different from the number of the weight-reducing grooves 52 on the wheel hub 5 .

[0052] In this embodiment, the wheel hub 5 is provided with a plurality of weight-reducing grooves 52 at intervals along the circumference of the wheel hub flange surface, which can be used to reduce the weight of the wheel hub 5 on the one hand, and can be used to print a traceability code on the other hand, and the traceability code records the relevant information of the wheel hub processing. Since the number of support bars 12 is different from the number of weight-reducing grooves 52 on the wheel hub 5, even if some support bars 12 fall into the weight-reducing grooves 52, there will always be some support bars 12 located outside the weight-reducing grooves 52, which can stably support the wheel hub 5. For example, the number of weight-reducing grooves 52 is 5, and at this time, 6 support bars 12 can be provided, and the angle between the straight lines where adjacent support bars 12 are located is not equal to the angle between the center lines of adjacent weight-reducing grooves 52, that is, when the wheel hub 5 is placed on the test platform flange 1, even if one support bar 12 falls into the weight-reducing groove 52, the other support bars 12 are located outside the weight-reducing grooves 52, which can stably support the wheel hub 5.

[0053] Optionally, the test platform flange is provided with through holes, the through holes include a first through hole 112 and a second through hole 131 respectively penetrating the flange body 11 and the guide column 13 , and a first avoidance hole 132 is provided on the circumferential hole wall of the second through hole 131 .

[0054] Specifically, the first through hole 112 passes through the flange body 11, and the second through hole 131 passes through the guide column 13. The first through hole 112 and the second through hole 131 are coaxially arranged and interconnected. The airflow blown out of the air blowing pipeline 6 can be blown upward through the second through hole 131 and the first through hole 112 to blow off the debris on the wheel hub 5. The first through hole 112 and the second through hole 131 have larger apertures and larger air blowing volumes, so the aluminum chips on the wheel hub 5 can be blown off well. At the same time, the first through hole 112 and the second through hole 131 are located in the middle of the test platform flange 1. After the wheel hub 5 is placed on the test platform flange 1, the first through hole 112 and the second through hole 131 will not be blocked, and there will be no problem of holding air.

[0055] The flange body 11 is provided with a second air-avoiding hole 113 interconnected with the corresponding first air-avoiding hole 132 along the circumference of the guide column 13. In addition to being blown upward through the first through hole 112 and the second through hole 131, the gas blown out from the air blowing pipeline 6 can also be blown upward through the first through hole 112 and the second air-avoiding hole 113. In addition, the first air-avoiding hole 132 and the second air-avoiding hole 113 constitute an L-shaped air-avoiding structure. After the second measuring head, i.e., the center aperture measuring head, mentioned below, is installed on the support platform 2, the measuring platform flange can be smoothly installed on the support platform 2 through the L-shaped air-avoiding structure to avoid interference between the measuring platform flange and the center aperture measuring head.

[0056] Another embodiment of the utility model proposes a measuring tool, including a supporting platform 2, a first measuring head 3 and the above-mentioned measuring platform flange 1, wherein the measuring platform flange 1 is installed on the supporting platform 2, and the first measuring head 3 is arranged on a side of the measuring platform flange 1 away from the supporting platform 2, and the first measuring head 3 is used to move in a direction close to or away from the measuring platform flange 1.

[0057] In this embodiment, the support platform 2 and the first measuring head 3 are installed on the bracket 4, the flange body 11 of the measuring platform flange 1 is installed on the support platform 2, the upper end surface of the flange body 11 is provided with a supporting bar 12, the wheel hub 5 to be measured can be placed on the supporting bar 12, and the first measuring head 3 is provided above the measuring platform flange 1, and the first measuring head 3 can move up and down to contact or separate with the upper surface of the measured part. The advantages of the measuring tooling compared with the prior art are the same as those of the above-mentioned measuring platform flange, and will not be repeated.

[0058] like Figure 2-Figure 3 As shown, optionally, a positioning hole 111 is provided on the test platform flange, and a positioning column 21 matching the positioning hole 111 is provided on the support platform 2 , and the positioning column 21 is used to be inserted into the positioning hole 111 .

[0059] Here, the positioning holes 111 can be arranged in plurality along the circumferential intervals of the flange body 11. The positioning holes 111 can be circular holes. The top of the support platform 2 is provided with an upwardly arranged positioning column 21. The measuring platform flange 1 utilizes the plug-in cooperation between the positioning holes 111 and the positioning column 21 to achieve the positioning and assembly of the two.

[0060] In other embodiments, a positioning column 21 may be provided at the bottom of the measuring platform flange, and a positioning groove matching the positioning column may be provided on the supporting platform 2, and its function is similar to that described above.

[0061] like Figure 2 and Figure 7 As shown, optionally, the measuring tool also includes an air blowing pipeline 6, and a groove 22 is provided on the support platform 2 at a position corresponding to the measuring platform flange, one end of the air blowing pipeline 6 is inserted into the groove 22 and connected to the through hole of the measuring platform flange through the groove 22.

[0062] Specifically, a groove 22 is provided on the top of the supporting platform 2, and the cross-sectional dimension of the groove 22 is smaller than the cross-sectional dimension of the flange body 11. The flange body 11 is placed above the groove 22. A through hole is provided on the measuring platform flange 1 which penetrates vertically. One end of the air blowing pipeline 6 can be connected to an air pump, and the other end of the air blowing pipeline 6 is horizontally inserted into the groove 22.

[0063] In this embodiment, air is blown into the groove 22 through the air blowing pipe 6 and then blown toward the wheel hub 5 through the through hole to blow away aluminum chips carried during the processing of the wheel hub 5, thereby ensuring that the hub flange surface is completely in contact with the reference surface formed by each support bar 12, thereby ensuring the measurement accuracy of the first measuring head 3.

[0064] like Figure 2 , Figure 3 and Figure 6 As shown, optionally, the measuring tool further includes a second measuring head, which is a center aperture measuring head. The second measuring head is placed on the supporting platform 2 and is used to extend from the first avoidance hole 132 of the measuring platform flange.

[0065] In this embodiment, two first avoidance holes 132 are symmetrically arranged on the circumferential hole wall of the second through hole 131. The center aperture measuring head is arranged on the supporting platform 2. The center aperture measuring head is a contact measuring head, and the two contacts of the center aperture measuring head are used to extend from the two first avoidance holes 132 in the radial direction respectively. After the wheel hub 5 is placed on the measuring platform flange, the two contacts respectively contact with the hole wall of the wheel hub center hole 51 of the wheel hub 5 to realize the detection of the aperture of the wheel hub center hole 51.

[0066] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A test platform flange, characterized in that: It comprises a flange body (11) and a support bar (12), wherein a plurality of the support bars (12) are respectively connected to the flange body (11) and are perpendicular to the axial direction of the flange body (11), the support bars (12) are arranged at intervals, and an end face of each support bar (12) along the axial direction of the flange body (11) is configured as a support surface.

2. The test platform flange according to claim 1, characterized in that: The supporting surface is a convex arc-shaped surface (121).

3. The test platform flange according to claim 1, characterized in that: The support strips (12) are arranged at intervals along the circumference of the flange body (11), and the support strips (12) are respectively extended along the radial direction of the flange body (11).

4. The test platform flange according to claim 3, characterized in that: The plurality of support strips (12) are respectively arranged on the axial end surface of the flange body (11), and a surface of each support strip (12) away from the flange body (11) is configured as the support surface.

5. The test platform flange according to claim 4, characterized in that: It also includes a guide column (13), wherein the middle part of the flange body (11) is provided with the guide column (13) extending in the axial direction, and the guide column (13) is used to be inserted into the hub center hole (51) of the wheel hub (5); each of the support bars (12) is arranged at intervals along the circumference of the guide column (13), and there is a preset gap between the support bars (12) and the guide column (13).

6. The test platform flange according to claim 5, characterized in that: One end of the support bar (12) away from the guide column (13) extends out of the flange body (11).

7. The test platform flange according to claim 1, characterized in that: The number of the support bars (12) is different from the number of the weight-reducing grooves (52) on the wheel hub (5).

8. The test platform flange according to claim 5, characterized in that: The test platform flange is provided with a through hole, the through hole comprising a first through hole (112) and a second through hole (131) respectively penetrating the flange body (11) and the guide column (13), and the circumferential hole wall of the second through hole (131) is provided with a first avoidance hole (132).

9. A measuring tool, characterized in that: It comprises a supporting platform (2), a first measuring head (3) and a measuring platform flange as described in any one of claims 1 to 8, wherein the measuring platform flange is mounted on the supporting platform (2), the first measuring head (3) is arranged on a side of the measuring platform flange away from the supporting platform (2), and the first measuring head (3) is used to move in a direction close to or away from the measuring platform flange.

10. The measuring tool according to claim 9, characterized in that: It also comprises an air blowing pipeline (6), a groove (22) is provided at a position on the support platform (2) corresponding to the test platform flange, one end of the air blowing pipeline (6) is inserted into the groove (22) and communicates with the through hole of the test platform flange through the groove (22); And / or, it also includes a second measuring head, the second measuring head is a center aperture measuring head, the second measuring head is placed on the support platform (2) and is used to extend from the first avoidance hole (132) of the measuring platform flange.

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