Knuckle angle precision detection tool

By designing a steering knuckle angle accuracy testing fixture, the problems of time-consuming, labor-intensive, and poorly adaptable traditional testing methods have been solved. This has enabled efficient and accurate measurement of steering knuckle angles of multiple specifications, improving testing efficiency and result reliability.

CN224230910UActive Publication Date: 2026-05-12SHANGHAI QUANCHEN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI QUANCHEN AUTO PARTS CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional steering knuckle angle detection methods rely on manual experience, which is time-consuming, labor-intensive, and lacks accuracy and consistency. Furthermore, they are not suitable for various steering knuckle sizes.

Method used

A steering knuckle angle accuracy testing fixture was designed, which includes a base plate, pad plate, clamping seat, protractor and adjusting plate. Through the combination of slide groove, moving rod and clamping block, the protractor can be flexibly adjusted and adapted to multiple specifications.

Benefits of technology

It improves the accuracy and reliability of testing, reduces the difficulty and cost of operation, enhances the versatility and flexibility of inspection tools, and simplifies the testing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of detection, particularly relates to a steering knuckle angle precision detection gauge, and aims to solve the problems that a conventional detection method depends on manpower, is time-consuming and labor-consuming, is poor in detection precision and consistency, is inconvenient to adapt to steering knuckles of various specifications, is not good enough in use flexibility and the like. A base plate is fixedly mounted at the top of the bottom plate, a placing hole is formed in the top of the base plate, and the base plate is used for placing the steering knuckle through the placing hole; according to the steering knuckle detection tool, through the ingenious design of the sliding groove, the moving rod and the like, flexible adjustment of the protractor and the identification plate is achieved, the operation difficulty is reduced, high precision of angle measurement is ensured, meanwhile, through the design of the clamping blocks of multiple specifications at the bottom of the clamping base and the combination of the adjusting mechanism, the angle measurement accuracy is improved, and the detection accuracy is improved. The detection tool can be widely adapted to different knuckles, and the versatility and flexibility of the detection tool are enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a steering knuckle angle accuracy testing fixture. Background Technology

[0002] In the automotive manufacturing and repair industry, the steering knuckle, as a crucial component of the vehicle's steering system, directly impacts the vehicle's handling performance, driving stability, and safety with its angular accuracy. However, traditional steering knuckle angular accuracy methods still suffer from the following problems:

[0003] Specifically, traditional testing methods often rely on the experience and skill level of operators, measuring by visual inspection or using simple measuring tools (such as angle gauges). This method is not only time-consuming and labor-intensive, but also makes it difficult to guarantee the consistency and accuracy of the measurements. In addition, with the rapid development of the automotive industry, the types and specifications of steering knuckles are increasing, and traditional testing methods are also proving inadequate in terms of adaptability and flexibility.

[0004] To address the aforementioned problems, this utility model document proposes a steering knuckle angle accuracy testing fixture. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as reliance on manual labor in traditional testing methods, which are time-consuming, labor-intensive, have poor testing accuracy and consistency, are inconvenient to adapt to various specifications of steering knuckles, and lack flexibility in use. Therefore, this invention proposes a steering knuckle angle accuracy testing fixture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A steering knuckle angle accuracy testing fixture, comprising:

[0008] A base plate, on the top of which a pad is fixedly installed, and a placement hole is provided on the top of the pad for placing the steering knuckle.

[0009] It also includes a mounting bracket, which is placed above the steering knuckle. A mounting plate is fixedly installed on the top of the mounting bracket. An adjustment plate is provided on one side of the mounting plate, and a protractor is provided on one side of the adjustment plate. The protractor is used to detect the angular accuracy of the steering knuckle.

[0010] In one possible design, the adjustment plate has a groove inside, and a moving rod is slidably arranged inside the groove. The protractor is fixedly sleeved on the outer wall of the moving rod. The moving rod is used to adjust the horizontal position of the protractor. A positioning block is fixedly installed at one end of the moving rod. One end of the positioning block is arc-shaped and is used to abut against the test hole of the steering knuckle.

[0011] In one possible design, a marking plate is rotatably fitted on the outer wall of the moving rod. The marking plate is close to one side of the protractor and is used to complete the comparison of the steering knuckle head and the marking of angle data.

[0012] In one possible design, a slider is slidably connected inside the mounting plate, and an adjustment plate is disposed on one side of the slider to adjust the vertical height of the signboard.

[0013] In one possible design, two limiting plates are fixedly installed on one side of the adjusting plate. The two limiting plates are slidably connected to the top and bottom of the slider, respectively. A screw is rotatably connected to one side of the adjusting plate. One end of the screw is threaded through the slider. The screw is used to adjust the distance between the adjusting plate and the mounting plate to ensure that it can fit against one side of the steering knuckle head.

[0014] In one possible design, a support column is fixedly installed on the top of the base plate, and a sleeve is slidably fitted on the outer wall of the support column. A fixing screw is threaded through one side of the sleeve, and one end of the fixing screw abuts against the outer wall of the support column to fix the sleeve. A connecting plate is fixedly installed on one side of the sleeve, and the other end of the connecting plate is fixedly connected to the card seat to fix and rotate the card seat.

[0015] In one possible design, the bottom of the card holder is provided with multiple locking blocks, the diameter of which decreases from top to bottom, to ensure that the card holder can be locked into the center hole of steering knuckles of different sizes.

[0016] In this application, during use, the user can place the steering knuckle to be tested on the pad, ensuring that the steering knuckle journal is inserted into the placement hole and placed stably on the pad. The user can then loosen the fixing screws by rotating them, and then rotate the sleeve to move the retainer above the steering knuckle. By adjusting the height of the sleeve, the bottom of the retainer can be secured in the center hole of the steering knuckle. The sleeve is then secured again with the fixing screws. The user can then adjust the height of the adjusting plate and the horizontal position of the protractor to allow the positioning block to engage in the hole of the steering knuckle head. To ensure the adjusting plate is flush against one side of the steering knuckle head, the user can rotate the screw before testing to adjust the distance between the adjusting plate and the mounting plate. After positioning the protractor, the user can move the marker plate to align it with the steering knuckle head. By measuring the angle between the marker plate and the adjusting plate, the tilt angle of the steering knuckle head can be obtained, thus completing the accurate measurement of the steering knuckle angle.

[0017] Beneficial effects:

[0018] In this utility model, the steering knuckle angle accuracy testing fixture, through the structural design of sliding grooves, moving rods, etc., realizes the horizontal and vertical position adjustment of the protractor and the marking plate, making the testing process simpler and faster, reducing the difficulty of operation and labor intensity. Furthermore, the cooperation between the protractor and the marking plate enables accurate measurement of the steering knuckle angle accuracy, effectively avoiding measurement errors caused by human factors, and improving the accuracy and reliability of the test results.

[0019] In this utility model, the steering knuckle angle accuracy testing fixture has multiple locking blocks with decreasing diameters at the bottom of the mounting base, which can be adapted to steering knuckle center holes of different specifications. Furthermore, the design of the slider and the moving rod allows the horizontal position and vertical height of the protractor to be adjusted, which is beneficial for testing steering knuckles of different specifications, enhancing the versatility and flexibility of the fixture, and reducing testing costs.

[0020] In this invention, the steering knuckle inspection fixture, through the ingenious design of sliding grooves and moving rods, achieves flexible adjustment of the protractor and the marking plate, simplifies the inspection process, reduces the difficulty of operation, ensures high accuracy of angle measurement, and eliminates human error. At the same time, the multi-specification locking block design at the bottom of the mounting base, combined with the adjustment mechanism, can be widely adapted to different steering knuckles, enhancing the versatility and flexibility of the fixture, effectively reducing inspection costs, and improving inspection efficiency and the reliability of results. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a steering knuckle angle accuracy testing fixture proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the pad structure of a steering knuckle angle accuracy testing fixture proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the sleeve installation structure of a steering knuckle angle accuracy testing fixture proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the mounting plate structure of a steering knuckle angle accuracy testing fixture proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the protractor mounting structure of a steering knuckle angle accuracy testing fixture proposed in this utility model;

[0026] Figure 6 This is a schematic diagram of the adjusting plate extension structure of a steering knuckle angle accuracy testing fixture proposed in this utility model.

[0027] In the diagram: 1. Base plate; 2. Pad plate; 3. Support column; 4. Placement hole; 5. Connecting plate; 6. Card seat; 7. Mounting plate; 8. Sleeve; 9. Fixing screw; 10. Slider; 11. Adjusting plate; 12. Slide groove; 13. Moving rod; 14. Positioning block; 15. Protractor; 16. Marking plate; 17. Limiting plate; 18. Screw. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1

[0030] Reference Figure 1-6 A gauge includes components such as a base plate 1, a pad 2, a mounting base 6, a mounting plate 7, an adjusting plate 11, and a protractor 15.

[0031] First, the base plate 1 serves as the basic support platform for the entire inspection fixture, and a pad 2 is fixedly installed on its top. The pad 2 has placement holes 4 for accurately placing the steering knuckle to be inspected, ensuring the stability of the steering knuckle during the inspection process.

[0032] Next, the mounting bracket 6 is placed above the steering knuckle and connected to the sleeve 8 via the connecting plate 5. The sleeve 8 is slidably fitted onto the support column 3, which is vertically fixed to the base plate 1. A fixing screw 9 is threaded onto the outer wall of the sleeve 8. By rotating the fixing screw 9, one end of it abuts against the outer wall of the support column 3, thereby fixing the sleeve 8 and the mounting bracket 6 and adjusting their height to meet the testing requirements of steering knuckles at different heights.

[0033] Mounting plate 7 is fixedly mounted on top of bracket 6, and slider 10 is slidably connected inside it. Adjustment plate 11 is located on one side of slider 10. By sliding slider 10 within mounting plate 7, the vertical height of adjustment plate 11 can be adjusted to accommodate different steering knuckle positions.

[0034] The adjusting plate 11 has a sliding groove 12 inside, and a moving rod 13 is slidably arranged in the sliding groove 12. The protractor 15 is fixedly sleeved on the outer wall of the moving rod 13 and is used to measure the angular accuracy of the steering knuckle. A positioning block 14 is fixedly installed at one end of the moving rod 13. One end of the positioning block 14 is designed to be arc-shaped to facilitate contact with the test hole of the steering knuckle and realize the reference positioning for angle measurement.

[0035] This application can be used in the field of steering knuckle detection technology, or in other fields applicable to this application.

[0036] Example 2

[0037] refer to Figure 4 , 5 6. An improvement on Example 1: a steering knuckle angle accuracy testing fixture, which is applied to the field of steering knuckle testing technology;

[0038] To maintain the stability of the adjusting plate 11, two limiting plates 17 are fixedly installed on one side, which are slidably connected to the top and bottom of the slider 10, respectively. At the same time, a screw 18 is rotatably connected to one side of the adjusting plate 11. One end of the screw 18 is threaded through the slider 10. By rotating the screw 18, the distance between the adjusting plate 11 and the mounting plate 7 can be finely adjusted to ensure that the adjusting plate 11 can fit tightly against one side of the steering knuckle head.

[0039] To further improve the convenience and accuracy of measurement, a marking plate 16 is rotatably fitted onto the outer wall of the moving rod 13, with the marking plate 16 closely attached to one side of the protractor 15. During the inspection process, the operator can rotate the marking plate 16 to compare the actual position of the steering knuckle head and directly read or mark the angle data on the protractor 15.

[0040] In addition, the bottom of the card holder 6 is designed with multiple locking blocks whose diameter decreases from top to bottom to ensure that it can be locked and adapted to the center holes of different sizes of steering knuckles.

[0041] The working principle and usage process of this technical solution are as follows: During use, the user can place the steering knuckle to be tested on the pad 2, ensuring the steering knuckle journal is inserted into the placement hole 4, thus securing it stably on the pad 2. Then, the user can loosen the fixing screw 9 by rotating it, allowing the sleeve 8 to rotate, thereby moving the retainer 6 above the steering knuckle. By adjusting the height of the sleeve 8, the bottom of the retainer 6 can be secured in the center hole of the steering knuckle. The sleeve 8 is then fixed again using the fixing screw 9. Finally, the user can adjust the adjusting plate 11... The height and horizontal position of the protractor 15 allow the positioning block 14 to snap into the hole in the steering knuckle head. To ensure that the adjusting plate 11 is tightly attached to one side of the steering knuckle head, the user can rotate the screw 18 before testing to adjust the distance between the adjusting plate 11 and the mounting plate 7. After positioning the protractor 15, the user can move the marker plate 16 to align it with the steering knuckle head. At this time, by measuring the angle between the marker plate 16 and the adjusting plate 11, the tilt angle of the steering knuckle head can be obtained to complete the accurate measurement of the steering knuckle angle.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steering knuckle angle accuracy testing fixture, characterized in that, include: The base plate (1) has a pad (2) fixedly installed on its top. The pad (2) has a placement hole (4) on its top. The pad (2) is used to place the steering knuckle through the placement hole (4). It also includes a mounting base (6), which is placed above the steering knuckle. A mounting plate (7) is fixedly installed on the top of the mounting base (6). An adjustment plate (11) is provided on one side of the mounting plate (7). A protractor (15) is provided on one side of the adjustment plate (11). The protractor (15) is used to detect the angular accuracy of the steering knuckle.

2. The steering knuckle angle accuracy testing fixture according to claim 1, characterized in that, The adjustment plate (11) has a sliding groove (12) inside, and a moving rod (13) is slidably arranged inside the sliding groove (12). The protractor (15) is fixedly sleeved on the outer wall of the moving rod (13). The moving rod (13) is used to adjust the horizontal position of the protractor (15). A positioning block (14) is fixedly installed at one end of the moving rod (13). One end of the positioning block (14) is arc-shaped and is used to abut against the test hole of the steering knuckle.

3. The steering knuckle angle accuracy testing fixture according to claim 2, characterized in that, The outer wall of the movable rod (13) is rotatably fitted with an identification plate (16). The identification plate (16) is close to one side of the protractor (15). The identification plate (16) is used to complete the comparison of the steering knuckle head and the identification of angle data.

4. The steering knuckle angle accuracy testing fixture according to claim 1, characterized in that, The mounting plate (7) has a slider (10) slidably connected inside, and the adjustment plate (11) is located on one side of the slider (10) to adjust the vertical height of the signboard (16).

5. A steering knuckle angle accuracy testing fixture according to claim 4, characterized in that, Two limiting plates (17) are fixedly installed on one side of the adjusting plate (11). The two limiting plates (17) are slidably connected to the top and bottom of the slider (10) respectively. A screw (18) is rotatably connected to one side of the adjusting plate (11). One end of the screw (18) is threaded through the slider (10). The screw (18) is used to adjust the distance between the adjusting plate (11) and the mounting plate (7) to ensure that it can fit against one side of the steering knuckle head.

6. A steering knuckle angle accuracy testing fixture according to claim 1, characterized in that, A support column (3) is fixedly installed on the top of the base plate (1). A sleeve (8) is slidably fitted on the outer wall of the support column (3). A fixing screw (9) is threaded through one side of the sleeve (8). One end of the fixing screw (9) abuts against the outer wall of the support column (3) to fix the sleeve (8). A connecting plate (5) is fixedly installed on one side of the sleeve (8). The other end of the connecting plate (5) is fixedly connected to the card seat (6) to fix and rotate the card seat (6).

7. A steering knuckle angle accuracy testing fixture according to claim 6, characterized in that, The bottom of the card holder (6) is provided with multiple card blocks, the diameter of which decreases from top to bottom, to ensure that the card holder (6) can be locked into the center hole of the steering knuckle of different specifications.