Rim or wheel rim thickness measuring scale calibrating device
By designing a calibration device for measuring wheel rim or wheel hoop thickness, and employing a detection unit for indication error and positioning distance, the problems of low detection accuracy and high cost in existing technologies have been solved. This achieves low-cost, high-efficiency multi-parameter detection, meeting the accuracy requirements for wheel rim thickness measurement.
Patent Information
- Application Number
- CN202520558745.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing wheel rim thickness measuring gauges suffer from errors due to wear, deformation, and fatigue of elastic elements, resulting in insufficient detection accuracy. Furthermore, high-precision equipment is expensive, and the cumbersome operation of current testing methods leads to low efficiency, failing to meet measurement requirements.
A calibration device for measuring the thickness of wheel rims or wheel hubs was designed, including an indication error detection unit and a positioning distance detection unit. It adopts an integrated structure and uses a go/no-go gauge to detect the indication error and positioning distance, simplifying operation and improving detection accuracy and efficiency.
It achieves low-cost and high-efficiency multi-parameter detection, improves detection accuracy and efficiency, reduces labor intensity, and meets the accuracy requirements for wheel rim thickness measurement.
Smart Images
Figure CN223940164U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a calibration device for measuring rulers, and particularly to a calibration device for a measuring ruler for measuring the thickness of wheel rims or wheel hoop. Background Technology
[0002] Accurate rim thickness measurement helps to promptly detect whether the rim thickness is below the safety threshold. Therefore, regular rim thickness checks are necessary. Rim thickness measuring gauges used for this purpose can develop errors over time due to wear, deformation, and fatigue of elastic elements. Therefore, regular calibration of the rim thickness measuring gauges is required. Calibration typically involves checking the indication error and positioning distance. Verifying the indication error ensures that the value displayed by the gauge accurately reflects the true thickness of the rim. Only with accurate gauge readings can the rim's compliance with safety standards be accurately determined, avoiding misjudgments caused by measurement errors. Accurate calibration of the positioning distance ensures the gauge is accurately positioned on the rim, making the measurement points representative and consistent. Inaccurate positioning distance can lead to deviations when measuring at different locations, making it impossible to accurately obtain the true distribution of rim thickness and affecting the overall assessment of the rim's condition.
[0003] Currently, some in the industry use high-precision equipment for testing, such as high-precision optical grating length measuring machines. However, the high purchase and maintenance costs of these devices hinder their widespread application. Others use vernier calipers to measure positioning distances. However, the vernier caliper's indication error is ±0.03mm, and the measuring ruler's positioning distance is 70±0.1mm, which does not meet the measurement requirements. Furthermore, measuring indication error using vernier height calipers and flat plates / leveling blocks requires the combined use of both, which is cumbersome. Additionally, the height caliper's error is ±0.04mm, and the measuring ruler's indication error is ±0.1mm, so this method also fails to meet the measurement requirements. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of the existing technology by providing a wheel rim or wheel hoop thickness measuring and calibration device that is simple and quick to operate, can effectively improve detection accuracy and efficiency, and is low in cost and easy to promote and apply.
[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a wheel rim or wheel hoop thickness measuring ruler calibration device, including a main body and an indication error detection part and a positioning distance detection part connected around the main body. The main body is flat. The indication error detection part is connected to the upper right side of the main body, and the positioning distance detection part is connected to the lower left side of the main body. The indication error detection part includes an indication detection platform one and an indication detection platform two. The indication detection platform one extends horizontally to the left from the main body, and its upper end extends upward and protrudes from the main body. The indication detection platform two also extends horizontally to the left from the main body, and the indication detection platform two is located directly below the indication detection platform one. A positioning groove is formed between the bottom end of the first indicator and the top end of the second indicator. The left side of the first indicator and the left side of the second indicator are in the same vertical plane, which is the reference plane B. The top surface of the main body on the right side of the first indicator is a horizontal plane, which is the positioning platform. The positioning distance detection part includes a reference plane A, a positioning distance detection through platform, and a positioning distance detection stop platform. The reference plane A is the right vertical end face of the main body extending to the right. The reference plane A is recessed inward near the middle to form the second positioning groove. The positioning distance detection stop platform is formed by extending horizontally downward from the bottom left end of the main body. The positioning distance detection through platform is formed by extending horizontally downward from the bottom end of the positioning distance detection stop platform.
[0006] A further technical solution of this utility model is: a third indicator is provided directly below the second indicator detection platform. The third indicator is also formed by extending horizontally to the left from the main body. The bottom end of the second indicator is located between the top end of the third indicator and the bottom end of the third indicator. The left end face of the third indicator is in the same vertical plane as the reference plane B.
[0007] A further technical solution of this utility model is: the main body is provided with a square through hole in the middle of its front and rear surfaces.
[0008] This utility model wheel rim or wheel hoop thickness measuring gauge calibration device has the following beneficial effects: the indication error detection part is connected to the upper right side of the main body, and the positioning distance detection part is connected to the lower left side of the main body. It adopts an integral structure, the positioning distance adopts the go / no-go gauge method, and the indication error adopts the fixed step form. The operation is simple and quick, improving the detection accuracy and efficiency. It can detect both indication error and positioning distance, realizing multi-parameter detection, improving the utilization rate of the calibration device, and reducing detection costs and labor intensity of workers.
[0009] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates the calibrator for measuring the thickness of wheel rims or wheel hoop according to this utility model. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of the wheel rim or wheel hoop thickness measuring ruler calibration device of this utility model;
[0011] Figure 2 yes Figure 1 Enlarged view of point A;
[0012] Figure 3 This is a schematic diagram of the structure of a wheel rim or wheel hoop thickness measuring ruler;
[0013] Figure 4 This is a schematic diagram of the structure used to verify the indication error of the wheel rim or wheel hoop thickness measuring ruler according to this utility model;
[0014] Figure 5 This is a schematic diagram of the structure of the measuring ruler for verifying the positioning distance of the wheel rim or wheel hoop thickness using this utility model;
[0015] Explanation of reference numerals: 1-Main body, 2-Positioning platform, 3-Square through hole, 4-Positioning groove two, 5-Reference surface A, 6-Positioning distance detection platform, 7-Positioning distance detection stop platform, 8-Indication detection platform three, 9-Positioning groove three, 10-Indication detection platform two, 11-Positioning groove one, 12-Indication detection platform one, 13-Reference surface B, 14-Rim or rim thickness measuring ruler, 15-Main scale, 16-Measuring head, 17-Positioning ruler, 18-Positioning claw. Detailed Implementation
[0016] like Figure 1 , 2 As shown, this utility model relates to a wheel rim or rim thickness measuring ruler calibration device (hereinafter referred to as the "calibration device"), used to calibrate the indication error and positioning distance of the wheel rim or rim thickness measuring ruler. This utility model includes a main body 1 and an indication error detection unit and a positioning distance detection unit connected around the main body 1. The main body 1 is flat and is a metal plate with a thickness of 2-5 mm. A square through-hole 3 penetrating its front and rear surfaces is provided in the middle of the main body 1. The through-hole reduces the overall weight of the calibration device and facilitates handheld operation. The indication error detection unit is connected to the upper right side of the main body 1, and the positioning distance detection unit is connected to the lower left side of the main body 1. In this utility model, the terms "up," "down," "left," and "right" used to describe orientation all refer to facing the target. Figure 1 Observe the orientation of the calibration device.
[0017] like Figure 3 As shown, the wheel rim or rim thickness measuring ruler 14 includes a main ruler 15 and a positioning ruler 17. A measuring head 16 for positioning is provided on the inner side of the starting point of the main ruler 15. The positioning ruler 17 is connected to the main ruler 15, and a positioning claw 18 is connected to the positioning ruler 17. This wheel rim or rim thickness measuring ruler 14 is existing equipment, and its structural principle will not be described in detail here.
[0018] like Figure 1As shown, the indication error detection unit includes an indication detection platform 12, an indication detection platform 20, and an indication detection platform 30. The indication detection platform 12 extends horizontally to the left from the main body 1, with its upper end protruding upwards from the main body 1. The distance from the top to the bottom of the indication detection platform 12 is D1. The indication detection platform 20 also extends horizontally to the left from the main body 1, and is located directly below the indication detection platform 12. A positioning groove 11 is formed between the bottom of the indication detection platform 12 and the top of the indication detection platform 20. During testing, the measuring head 16 of the wheel rim or wheel hoop thickness measuring ruler 14 can be positioned in the positioning groove 11 and abut against the bottom surface of the indication detection platform 12. The distance from the bottom of the indication detection platform 20 to the top of the indication detection platform 12 is D2. The left side of the indication detection platform 12 is in the same vertical plane as the left side of the indication detection platform 2 10, and this vertical plane is the reference plane B13. The reference plane B13 is used to position the main scale 15 of the wheel rim or wheel hoop thickness measuring ruler during testing. The top surface of the main body 1 on the right side of the indication detection platform 12 is a horizontal plane, and this horizontal plane is the positioning platform 2. When testing the indication error, the positioning claw 18 of the positioning ruler 17 can be positioned on the positioning platform 2. The indication detection platform 3 8 is located directly below the indication detection platform 2 10. The indication detection platform 3 8 is also formed by extending horizontally to the left from the main body 1. The bottom end of the indication detection platform 2 10 and the top end of the indication detection platform 3 8 are the positioning groove 3 9. The function of the positioning groove 3 9 is the same as that of the positioning groove 1 11. The left end face of the indication detection platform 3 8 is in the same vertical plane as the reference plane B13. The distance from the bottom end of the indication detection platform 3 8 to the top end of the indication detection platform 12 is D3.
[0019] like Figure 1 , 2 As shown, the positioning distance detection unit includes a reference surface A5, a positioning distance detection platform 6, and a positioning distance detection stop 7. Reference surface A5 is the right vertical end face extending to the right of the main body 1. A positioning groove 4 is formed by an inward indentation near the center of reference surface A5. The positioning distance detection stop 7 extends horizontally downward from the bottom left side of the main body 1, and the positioning distance detection platform 6 extends horizontally downward from the bottom of the positioning distance detection stop 7. In this embodiment, the distance from reference surface A5 to the right end of the positioning distance detection stop 7 is 70.1 mm, and the distance from reference surface A5 to the right end of the positioning distance detection platform 6 is 69.9 mm. Of course, as a variation of this invention, the dimensions of the positioning distance detection platform 6 and the positioning distance detection stop 7 can be replaced with other values as needed.
[0020] For usage instructions, please refer to the following steps: I. Indication Error Detection (see...) Figure 4(As shown): (1) Place the positioning surface of the wheel rim or rim thickness measuring ruler 14 in close contact with the reference surface B13 of the calibration device, and make the positioning claw 18 contact the positioning platform 2 of the calibration device; (2) Weigh the wheel rim or rim thickness measuring ruler 14 so that its measuring head 16 contacts the bottom surface of the calibration device's value detection platform 2, and read the measured value from the wheel rim or rim thickness measuring ruler 14. The difference between the measured value and the height value D2 of the calibration device's value detection platform 2 is the indication error of the wheel rim or rim thickness measuring ruler 14. II. Positioning distance detection (see...) Figure 5 (As shown): (1) Move the positioning claw 18 of the wheel rim or wheel rim thickness measuring ruler 14 to align with the 70mm mark on the main ruler and lock it. Ensure the positioning surface of the wheel rim or wheel rim thickness measuring ruler 14 is in close contact with the reference surface A5 of the calibration device. The measuring head 16 is positioned in the positioning groove 4. (2) Move the measuring ruler up and down to observe whether the positioning claw 18 can pass through the 69.9 through end and not through the 70.1 stop end. If it can, it is qualified; otherwise, it is unqualified. As a variation of this utility model: when detecting indication error, the measuring head 16 can also be positioned on the bottom surface of the indication detection platform 12 or the bottom surface of the indication detection platform 8 of the calibration device. The detection principle is the same and will not be described in detail here. Setting up three indication detection platforms is to facilitate the detection of indication errors of the measuring ruler within different numerical ranges.
[0021] The above embodiments are merely preferred embodiments of this utility model. The structure of this utility model is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A device for calibrating a wheel rim or wheel hoop thickness measuring gauge, characterized in that, The device includes a main body (1) and an indication error detection unit and a positioning distance detection unit connected around the main body (1). The main body (1) is flat. The indication error detection unit is connected to the upper right side of the main body (1), and the positioning distance detection unit is connected to the lower left side of the main body (1). The indication error detection unit includes an indication detection platform one (12) and an indication detection platform two (10). The indication detection platform one (12) is formed by extending horizontally to the left from the main body (1), and the upper end of the indication detection platform one (12) extends upward and protrudes from the main body (1). The indication detection platform two (10) is also formed by extending horizontally to the left from the main body (1), and the indication detection platform two (10) is located directly below the indication detection platform one (12). The bottom end of the indication detection platform one (12) and the top end of the indication detection platform two (10) are located in a positioning recess. The left side of the first groove (11) and the left side of the second groove (10) are in the same vertical plane and the vertical plane is the reference plane B (13). The top surface of the main body (1) on the right side of the first groove (12) is a horizontal plane and the horizontal plane is the positioning platform (2). The positioning distance detection part includes the reference plane A (5), the positioning distance detection through platform (6), and the positioning distance detection stop platform (7). The reference plane A (5) is the right vertical end face of the main body (1) extending to the right. The reference plane A (5) is recessed inward at the middle position to form the positioning groove 2 (4). The positioning distance detection stop platform (7) is formed by extending horizontally downward from the bottom left side of the main body (1). The positioning distance detection through platform (6) is formed by extending horizontally downward from the bottom of the positioning distance detection stop platform (7).
2. The rim or wheel hoop thickness measuring ruler calibration device as described in claim 1, characterized in that, Below the second (10) indicator detection platform, the third (8) indicator detection platform is also provided. The third (8) indicator detection platform is also formed by the main body (1) extending horizontally to the left. The bottom end of the second (10) indicator detection platform and the top end of the third (8) indicator detection platform are the positioning groove three (9). The left end face of the third (8) indicator detection platform and the reference surface B (13) are in the same vertical plane.
3. The wheel rim or wheel hoop thickness measuring ruler calibration device as described in claim 1, characterized in that, The main body (1) has a square through hole (3) in the middle that runs through its front and rear surfaces.