Measuring tool
By designing a measuring tool with clamping part and adjusting rod, the existing measuring tool has solved the problems of high cost and limited use scenarios, and achieved low-cost and widely used measurement results.
Patent Information
- Application Number
- CN202421841589.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing measurement tooling is costly and has limited use scenarios, making it difficult to widely use in vehicle research and development, testing and after-sales stages.
A measuring tool is designed, using a clamping part and an adjustment rod to determine the starting point and end point of the scale of the measuring part, and through the clamping part is connected to the wheel hub of the wheel, the adjustment rod is connected to the wheel brow of the vehicle, so as to measure the relative displacement between the wheel center and the wheel brow.
It reduces the cost of measuring tooling, expands the application scenarios, and can be used in multiple scenarios during the R&D, testing and after-sales stages of the vehicle.
Smart Images
Figure CN222824959U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of vehicle measurement technology, and in particular to a measuring tool. Background Art
[0002] During the vehicle development process, it is necessary to measure the relative displacement between the wheel center and the wheel arch of the vehicle to provide reference data for the design, calibration and troubleshooting of suspension parts such as air springs and shock absorbers.
[0003] Existing measuring tools usually use laser sensors or 3D cameras to measure the relative displacement between the wheel center and the wheel arch, but the measuring tools are expensive to manufacture and use. In addition, existing measuring tools are only applicable to the vehicle R&D and testing phases, and their use scenarios are limited. Utility Model Content
[0004] In view of this, an embodiment of the present application provides a measuring tool, which uses a clamping part and an adjusting rod to respectively determine the scale starting point and end point of the measuring part, thereby realizing the measurement of the relative displacement between the wheel center and the wheel arch. It has low cost and is widely used.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:
[0006] The present application provides a measuring tool, including:
[0007] Tool body;
[0008] A clamping portion, provided on one side of the tooling body;
[0009] A measuring part, one end of which is disposed on the tool body and the other end of which extends outside the tool body;
[0010] An adjusting rod is movably disposed on the measuring part along the length direction of the measuring part and fixed by a fastener;
[0011] When the measuring fixture is in a measuring state, the clamping part is connected to the wheel hub of the wheel so that the scale starting point of the measuring part is aligned with the wheel center of the wheel, and the adjusting rod is connected to the wheel eyebrow of the vehicle.
[0012] The measuring jig provided in the embodiment of the present application, when using the measuring jig, the clamping part is connected to the wheel hub, and the scale starting point of the measuring part is aligned with the wheel center of the wheel, and then the position of the adjusting rod is adjusted to connect it with the wheel brow of the vehicle and serve as the measurement end point, so as to obtain the relative displacement between the wheel center and the wheel brow. Expensive equipment such as laser sensors and 3D cameras are omitted, the use cost is low, and it can be used in multiple scenarios such as the vehicle R&D stage, testing stage and after-sales stage, and is widely used.
[0013] In a possible implementation of the present application, in the measuring state, the geometric center point of the tooling body is aligned with the wheel center of the wheel and serves as the scale starting point of the measuring part.
[0014] In a possible implementation of the present application, the clamping portion includes a plurality of clamping rods, and the plurality of clamping rods are spaced apart on one side of the tooling body, and the distance between the axis of each clamping rod and the geometric center point of the tooling body is the same.
[0015] In a possible implementation of the present application, in the measuring state, the clamping rod is clamped at the gap between the wheel hub and the tire of the wheel.
[0016] In a possible implementation of the present application, the measuring part includes a fixed plate and a measuring plate that are connected to each other, the fixed plate is arranged on a side of the tooling body away from the clamping part, the measuring plate is located outside the tooling body and extends along the length direction of the tooling body, the measuring plate has a strip hole along the length direction, and the adjusting rod is suitable for sliding along the strip hole.
[0017] In a possible implementation of the present application, the adjusting rod includes a first sub-rod, a second sub-rod and a third sub-rod connected in sequence, the first sub-rod extends toward a side of the tooling body where the clamping portion is provided, the third sub-rod extends toward the other side of the tooling body, and the second sub-rod is slidably disposed in the strip hole.
[0018] In a possible implementation of the present application, in the measuring state, the first sub-rod abuts against a lower edge of the wheel arch.
[0019] In a possible implementation of the present application, the fastener is a nut, the diameter of the first sub-rod and the diameter of the third sub-rod are larger than the diameter of the strip hole, the diameter of the second sub-rod is smaller than the diameter of the strip hole, and the outer surface is provided with an external thread, the nut is threadedly connected to the second sub-rod and clamps or loosens the measuring plate with the third sub-rod.
[0020] In a possible implementation of the present application, a scale is provided on a side of the measuring plate away from the clamping portion.
[0021] In a possible implementation of the present application, the tool body, the clamping part and the measuring part are integrally formed. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A front view of the measuring tool provided in an embodiment of the present application;
[0023] Figure 2A left side view of the measuring tool provided in an embodiment of the present application;
[0024] Figure 3 A diagram showing the positional relationship between the fenders and wheels of a vehicle provided in an embodiment of the present application.
[0025] Reference numerals:
[0026] 1. Tool body; 2. Clamping part; 201. Clamping rod; 3. Measuring part; 301. Fixing plate; 302. Measuring plate; 303. Strip hole; 4. Adjusting rod; 401. First sub-rod; 402. Second sub-rod; 403. Third sub-rod; 5. Wheel; 501. Wheel hub; 502. Tire; 6. Vehicle; 601. Fender. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.
[0028] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.
[0029] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.
[0030] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" 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.
[0031] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0032] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
[0033] Reference Figure 1 The embodiment of the present application provides a measuring tool, which mainly includes: a tool body 1, a clamping part 2, a measuring part 3 and an adjusting rod 4. The clamping part 2 is arranged on one side of the tool body 1. One end of the measuring part 3 is arranged on the tool body 1, and the other end extends outside the tool body 1. The adjusting rod 4 is movably arranged on the measuring part 3 along the length direction of the measuring part 3 and fixed by a fastener.
[0034] When the measuring tool is in the measuring state, the clamping part 2 is connected to the wheel hub 501 of the wheel 5 so that the scale starting point of the measuring part 3 is aligned with the wheel center of the wheel 5 , and the adjusting rod 4 is connected to the wheel eyebrow 601 of the vehicle 6 .
[0035] The measuring jig provided in the embodiment of the present application, when using the measuring jig, the clamping part 2 is connected to the wheel hub 501 of the wheel 5, and the scale starting point of the measuring part 3 is aligned with the wheel center of the wheel 5, and then the position of the adjusting rod 4 is adjusted to connect it with the wheel eyebrow 601 of the vehicle 6, and used as the measurement end point, so as to obtain the relative displacement between the wheel center and the wheel eyebrow 601. Compared with the traditional measuring jig, the embodiment of the present application omits expensive equipment such as laser sensors and 3D cameras, has a low cost of use, and can be used in multiple scenarios such as the research and development stage, testing stage, and after-sales stage of the vehicle 6, and has a wide range of applications.
[0036] Specifically, the measuring tool is used to measure the relative position between the wheel center of the vehicle wheel 5 and the wheel rim 601 of the vehicle 6. The measuring state refers to the state in which the measuring tool is installed on the wheel 5 and can directly read the wheel center and the wheel rim 601. First, the clamping part 2 is connected to the wheel hub 501 of the wheel 5, and then the adjustment rod 4 is turned to connect it with the wheel rim 601 of the vehicle 6, so as to achieve the measuring state, and finally the displacement value between the wheel center and the wheel rim 601 is read through the measuring part 3. The length direction of the measuring part 3 is as shown in FIG. Figure 1 As shown in L.
[0037] In some embodiments of the present application, in the measuring state, the geometric center point of the tool body 1 is aligned with the wheel center of the wheel 5 and serves as the scale starting point of the measuring part 3. The tool body 1 is designed as a symmetrical structure to facilitate the determination of the geometric center point of the tool body 1, and then the geometric center point of the tool body 1 is used as the scale starting point of the measuring part 3 and aligned with the wheel center of the wheel 5, so as to facilitate the positioning of the scale starting point of the measuring part 3.
[0038] Specifically, the geometric center point of the tool body 1 is as follows: Figure 2 As shown in M in FIG. 1 , the wheel center of the wheel 5 is as follows: Figure 3 As shown in O.
[0039] It should be noted that the embodiment of the present application does not limit the structure of the clamping part 2, as long as the clamping part 2 can clamp the wheel 5 and align the scale starting point of the measuring part 3 with the wheel center of the wheel 5.
[0040] In addition, the connection method between the clamping part 2 and the wheel hub 501 can be a snap-on fixing structure, such as a snap-on connection, which is convenient and quick to install, or it can be set as a fastener-type fixing structure, such as a screw fixation, which provides a stable connection. In this regard, the embodiments of the present application do not impose too many restrictions.
[0041] Compared with the fastener-type fixing structure, the clamping-type fixing structure causes less wear on the wheel hub 501. In some embodiments of the present application, the clamping portion 2 can be clamped at the gap between the spokes of the wheel hub 501.
[0042] In some embodiments of the present application, the clamping portion 2 includes a plurality of clamping rods 201, and the plurality of clamping rods 201 are arranged at intervals on one side of the tooling body 1, and the distance between the axis of each clamping rod 201 and the geometric center point of the tooling body 1 is the same. That is, the axis of each clamping rod 201 is on the same circle with the geometric center point of the tooling body 1 as the center. Therefore, it is only necessary to adjust the distance between the axis of each clamping rod 201 and the wheel center of the wheel 5 to be the same, so that the geometric center point of the tooling body 1 and the wheel center of the wheel 5 can be controlled to be aligned, which is convenient for installation and has a tight connection.
[0043] It should be noted that the number of the clamping rods 201 can be selected as two, three or more than three according to actual needs. Figure 1 and Figure 2 As shown, the tool body 1 is a strip-shaped plate, and the four corners extend outward at equal distances. The four clamping rods 201 are respectively arranged at the four corners of the tool body 1 and are at the same distance from the geometric center of the tool body 1.
[0044] Furthermore, in some embodiments of the present application, each clamping rod 201 is slidably arranged on one side of the tooling body 1, and the axis of each sliding rod can be on multiple circles with the geometric center point of the tooling body 1 as the center, so as to adapt to different models of wheels 5 and improve the application range of the measuring tool.
[0045] Further, in some embodiments of the present application, in the measuring state, the clamping rod 201 is clamped at the gap between the hub 501 and the tire 502 of the wheel 5. The clamping rod 201 is clamped at the gap between the hub 501 and the tire 502 of the wheel 5. On the one hand, the connection is stable and the damage to the wheel 5 is small. On the other hand, the circle formed by the gap between the hub 501 and the tire 502 takes the wheel center of the wheel 5 as the center. As long as the clamping rod 201 is clamped at the gap between the hub 501 and the tire 502, the geometric center point of the tool body 1 can be aligned with the wheel center of the wheel 5, which facilitates the determination of the scale starting point of the measuring part 3.
[0046] It should be noted that the embodiment of the present application does not limit the structure of the measuring part 3, and any existing structure can be selected as needed.
[0047] In some embodiments of the present application, reference Figure 2 The measuring part 3 includes a fixed plate 301 and a measuring plate 302 connected to each other. The fixed plate 301 is arranged on a side of the tooling body 1 away from the clamping part 2. The measuring plate 302 is located outside the tooling body 1 and extends along the length direction of the tooling body 1. The measuring plate 302 is provided with a strip hole 303 along the length direction, and the adjusting rod 4 is suitable for sliding along the strip hole 303. The fixed plate 301 is used to be fixedly connected to the tooling body 1, and the measuring plate 302 is used to adjust the position of the adjusting rod 4 so as to measure the wheel center and the wheel eyebrow 601 with different displacements.
[0048] Specifically, refer to Figure 2 The measuring part 3 is a strip plate, and the part where the measuring part 3 is fixed to the tool body 1 is used as the fixing plate 301. The part of the measuring part 3 extending outside the tool body 1 is used as the measuring plate 302. The adjusting rod 4 is installed in the strip hole 303 of the measuring plate 302, that is, the adjusting rod 4 only moves in the part outside the tool body 1 to prevent the adjusting rod 4 from affecting the fixing of the clamping part 2 and the wheel hub 501.
[0049] It should be noted that the length direction of the measuring portion 3 may be set at an angle to the length direction of the tool body 1, or may be consistent with the length direction of the tool body 1. For ease of use, in one embodiment, the length direction of the measuring portion 3 is consistent with the length direction of the tool body 1.
[0050] It should be noted that the embodiment of the present application does not limit the structure of the adjustment rod 4 , as long as the adjustment rod 4 can abut against the wheel arch 601 .
[0051] In some embodiments of the present application, reference Figure 1 The adjusting rod 4 includes a first sub-rod 401, a second sub-rod 402 and a third sub-rod 403 connected in sequence, the first sub-rod 401 extends toward the side of the tooling body 1 where the clamping portion 2 is provided, the third sub-rod 403 extends toward the other side opposite to the tooling body 1, and the second sub-rod 402 is slidably disposed in the strip hole 303.
[0052] Specifically, the adjusting rod 4 is a long straight rod, and the portion of the adjusting rod 4 in contact with the wheel eyebrow 601 is the first sub-rod 401, and the first sub-rod 401 forms a scale end point when in contact with the wheel eyebrow 601. The portion of the adjusting rod 4 that slides in the strip hole 303 is the second sub-rod 402, and after the first sub-rod 401 contacts the wheel eyebrow 601, the position of the second sub-rod 402 is fixed by a fastener to prevent the position movement of the adjusting rod 4 from affecting the reading. The holding portion of the adjusting rod 4 is the third sub-rod 403, and after holding the third sub-rod 403 and applying an external force, the second sub-rod 402 is driven to slide in the strip hole 303, so that the first sub-rod 401 contacts the wheel eyebrow 601.
[0053] Further, in some embodiments of the present application, in the measuring state, the first sub-rod 401 abuts against the lower edge of the fender 601. The position of the first sub-rod 401 is the end point of the scale, and reading is performed at this position.
[0054] In some embodiments of the present application, the fastener is a nut, the diameter of the first sub-rod 401 and the diameter of the third sub-rod 403 are larger than the diameter of the strip hole 303, the diameter of the second sub-rod 402 is smaller than the diameter of the strip hole 303, and the outer surface is provided with an external thread, the nut is threadedly connected to the second sub-rod 402 and clamps or loosens the measuring plate 302 with the third sub-rod 403.
[0055] Since the diameter of the second sub-rod 402 is smaller than the diameter of the strip hole 303, the second sub-rod 402 can slide in the strip hole 303. In addition, the diameter of the first sub-rod 401 and the diameter of the third sub-rod 403 are larger than the diameter of the strip hole 303. In the measuring state, the nut is tightened to clamp the measuring plate 302 between the nut and the third sub-rod 403 to fix the relative position of the adjusting rod 4.
[0056] In some embodiments of the present application, a scale is provided on one side of the measuring plate 302 away from the clamping portion 2. The scale is provided with readings. In the measuring state, since the clamping portion 2 is connected to the wheel hub 501 of the wheel 5, the scale starting point of the scale is aligned with the wheel center of the wheel 5, and the adjustment rod 4 is connected to the wheel eyebrow 601 of the vehicle 6 and serves as the reading point of the scale. The relative displacement between the wheel center and the wheel eyebrow 601 can be determined by only reading the position of the adjustment rod 4, which is convenient for use.
[0057] It should be noted that in the embodiment of the present application, there is no restriction on the connection relationship between the clamping part 2 and the measuring part 3 and the tooling body 1. It can be a detachable connection structure or a fastened connection structure. The embodiment of the present application does not impose any restriction on this.
[0058] In some embodiments of the present application, the tool body 1 is integrally formed with the clamping part 2 and the measuring part 3. The integrally formed connection structure does not require the clamping part 2 and the measuring part 3 to be installed on the tool body 1, thus saving installation steps and facilitating use.
[0059] In addition, the clamping part 2 and the measuring part 3 can be arranged on the same side of the tool body 1, or on opposite sides of the tool body 1. The clamping part 2 and the measuring part 3 are arranged on opposite sides of the tool body 1, which makes it easier to set the scale and read the reading than to arrange them on the same side of the tool body 1.
[0060] In the scenario where the tool body 1, the clamping part 2 and the measuring part 3 are integrally formed, the position of the clamping part 2 relative to the tool body 1 is fixed, so it is suitable for customized wheels 5. In addition, the wheel center position of the wheel 5 is fixed, and the length of the hub 501 is also fixed, so the length of the axis of the clamping rod 201 relative to the geometric center point of the tool body 1 needs to be designed according to the distance from the wheel center to the gap between the hub 501 and the tire 502. After the clamping part 2 is installed in the gap between the hub 501 and the tire 502, the geometric center of the tool body 1 is just aligned with the wheel center of the wheel 5 and serves as the starting point of the scale.
[0061] In some other embodiments, the clamping part 2 and / or the measuring part 3 are detachably provided on one side of the tool body 1 by means of components such as buckles or screws, so as to facilitate the disassembly of the clamping part 2 and / or the measuring part 3 and facilitate maintenance.
[0062] The working principle of the embodiment of the present application is as follows:
[0063] like Figures 1 to 3As shown, first open the vehicle 6 to a horizontal position and straighten the steering wheel. The four clamping rods 201 are respectively clamped in the gap between the wheel hub 501 and the tire 502 of the wheel 5, so that the geometric center point of the tooling body 1 is aligned with the wheel center of the wheel 5, that is, the wheel center of the wheel 5 is positioned at the starting point of the scale, and then the adjustment rod 4 is slid to make the adjustment rod 4 abut against the lower edge of the wheel eyebrow 601 of the vehicle 6. After that, tighten the nut and fix the adjustment rod 4. Finally, read the value of the adjustment rod 4 on the scale to obtain the displacement between the wheel center of the wheel 5 and the wheel eyebrow 601 of the vehicle 6.
[0064] Furthermore, the displacement reading between the wheel center of the wheel 5 and the wheel arch 601 of the vehicle 6 is input into the control system, and the actual height of the air suspension is calculated by the control system, thereby realizing the diagnosis of suspension system problems. In addition, the air suspension sensor can be calibrated according to the reading.
[0065] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A measuring tool, characterized in that: include: Tool body (1); A clamping portion (2) is provided on one side of the tool body (1); A measuring portion (3), one end of which is provided on the tool body (1) and the other end of which extends outside the tool body (1); An adjusting rod (4) is movably provided on the measuring part (3) along the length direction of the measuring part (3) and fixed by a fastener; When the measuring fixture is in a measuring state, the clamping portion (2) is connected to the hub (501) of the wheel (5) so that the scale starting point of the measuring portion (3) is aligned with the wheel center of the wheel (5), and the adjusting rod (4) is connected to the wheel eyebrow (601) of the vehicle (6).
2. The measuring tool according to claim 1, characterized in that: In the measuring state, the geometric center point of the tool body (1) is aligned with the wheel center of the wheel (5) and serves as the scale starting point of the measuring part (3).
3. The measuring tool according to claim 2, characterized in that: The clamping portion (2) comprises a plurality of clamping rods (201), the plurality of clamping rods (201) being arranged at intervals on one side of the tooling body (1), and the distance between the axis of each clamping rod (201) and the geometric center point of the tooling body (1) being the same.
4. The measuring tool according to claim 3, characterized in that: In the measuring state, the clamping rod (201) is clamped in the gap between the hub (501) and the tire (502) of the wheel (5).
5. The measuring tool according to any one of claims 1 to 4, characterized in that: The measuring portion (3) comprises a fixed plate (301) and a measuring plate (302) connected to each other, wherein the fixed plate (301) is arranged on a side of the tool body (1) away from the clamping portion (2), and the measuring plate (302) is located outside the tool body (1) and extends along the length direction of the tool body (1). The measuring plate (302) is provided with a strip hole (303) along the length direction, and the adjusting rod (4) is suitable for sliding along the strip hole (303).
6. The measuring tool according to claim 5, characterized in that: The adjusting rod (4) comprises a first sub-rod (401), a second sub-rod (402) and a third sub-rod (403) connected in sequence, wherein the first sub-rod (401) extends toward a side of the tooling body (1) on which the clamping portion (2) is provided, the third sub-rod (403) extends toward the other side opposite to the tooling body (1), and the second sub-rod (402) is slidably disposed in the strip-shaped hole (303).
7. The measuring tool according to claim 6, characterized in that: In the measuring state, the first sub-rod (401) abuts against the lower edge of the wheel arch (601).
8. The measuring tool according to claim 6, characterized in that: The fastener is a nut, the diameter of the first sub-rod (401) and the diameter of the third sub-rod (403) are larger than the diameter of the strip hole (303), the diameter of the second sub-rod (402) is smaller than the diameter of the strip hole (303), and the outer surface is provided with an external thread, the nut is threadedly connected to the second sub-rod (402) and clamps or loosens the measuring plate (302) with the third sub-rod (403).
9. The measuring tool according to claim 5, characterized in that: A scale is provided on a side of the measuring plate (302) away from the clamping portion (2).
10. The measuring tool according to any one of claims 1 to 4, characterized in that: The tool body (1), the clamping portion (2) and the measuring portion (3) are integrally formed.