Jig for detecting size of automobile steering part

By designing a testing fixture for automotive steering components, and using a servo motor to drive the rotating testing rod in conjunction with an angle sensor for dimensional inspection, the problems of low inspection efficiency and insufficient accuracy in existing technologies are solved, achieving efficient and accurate dimensional inspection of steering components.

CN224095052UActive Publication Date: 2026-04-07LONGHUA VOCATIONAL & TECH SCHOOL AFFILIATED TO FUJIAN TECH NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing technologies are insufficient for efficiently and accurately measuring the dimensions of automotive steering components, resulting in low production efficiency and an inability to meet steering accuracy requirements.

Method used

A fixture comprising a detection platform, a rotating detection rod, a servo motor, and an angle sensor was designed. The servo motor drives the rotating detection rod, and the angle sensor detects the rotation angle data. The data is then compared with the dimensional scale on the detection platform to achieve accurate dimensional detection.

Benefits of technology

It enables precise dimensional inspection of automotive steering components, ensuring that steering accuracy meets vehicle usage requirements and improving production efficiency and driving precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a jig for detecting the size of an automobile steering part, and mainly relates to the field of automobile detection equipment. Comprising a detection platform and a driving part, a rotation detection rod is arranged on the detection platform, the lower end of the rotation detection rod is connected with the driving part, and the rotation detection rod is driven by the driving part to rotate; size scales are marked on the detection platform, and the size scales are arranged in cooperation with the rotation detection rod. The beneficial effects of the utility model lie in that the dimension detection requirement of the automobile steering member can be realized, and the steering precision of the produced automobile steering member can be ensured to meet the use requirement of an automobile, so that the driving precision and the use precision of the automobile can meet the optimal requirements.
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Description

Technical Field

[0001] This utility model relates to the field of automotive testing equipment, specifically a fixture for measuring the dimensions of automotive steering components. Background Technology

[0002] For automotive steering components, which are the main devices used for steering in a car's steering system, they are crucial for the purpose of steering. Therefore, the specific rotational dimensions of automotive steering components need to be extremely precise to meet the requirements of automobile production. Consequently, the specific steering dimensions of automotive steering systems need to be accurately measured. However, measuring them using traditional measuring equipment is difficult and inefficient. Furthermore, there is a limited availability of equipment specifically designed for measuring the dimensions of automotive steering components, failing to meet the specific testing needs.

[0003] Based on the above problems, there is a need to set up a fixture for inspecting the dimensions of automotive steering components. This fixture should be able to meet the dimensional inspection requirements of automotive steering components, ensuring that the steering accuracy of the manufactured automotive steering components meets the vehicle's usage requirements, thereby achieving optimal driving and usage accuracy for the vehicle. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for measuring the dimensions of automotive steering components, which can meet the requirements for measuring the dimensions of automotive steering components, ensure that the steering accuracy of the produced automotive steering components meets the requirements for vehicle use, and thus achieve the optimal driving accuracy and usage accuracy of the vehicle.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A fixture for inspecting the dimensions of automotive steering components includes an inspection platform and a drive component. A rotating inspection rod is mounted on the inspection platform, and the lower end of the rotating inspection rod is connected to the drive component, which drives the rotating inspection rod to rotate. Dimensional graduations are marked on the inspection platform, and the dimensional graduations are set in accordance with the rotating inspection rod.

[0007] The rotating detection rod includes a fixed base rod and a rotating connecting rod. The two ends of the fixed base rod are detachably and fixedly mounted on the detection platform. One end of the rotating connecting rod is fixedly hinged to one end of the fixed base rod, and the other end is matched with the size scale on the detection platform.

[0008] The driving component includes a servo motor and an angle sensor. The angle sensor is configured to work in conjunction with the output shaft of the servo motor, and the output shaft of the servo motor is connected to the rotation shaft of the rotating link via a coupling.

[0009] The angle sensor is connected to a control system. When an external force drives the transmission shaft that the angle sensor works with to rotate, the angle sensor detects the rotation angle data and transmits it to the control system.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This device, when set up, utilizes a detection platform and a driving mechanism to meet the dimensional inspection requirements of automotive steering components. During inspection, the driving mechanism rotates a detection rod. In application, the workpiece and the rotating detection rod work together to reach the workpiece's maximum rotational detection angle under the drive of the mechanism. The result is then compared with the dimensional scale on the detection platform, thus fulfilling the requirement for dimensional inspection of automotive steering components. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Appendix Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0014] The labels shown in the attached diagram:

[0015] 1. Testing platform; 2. Drive unit; 3. Rotating testing rod; 4. Dimension scale; 5. Fixed base rod; 6. Rotating connecting rod; 7. Servo motor; 8. Angle sensor. Detailed Implementation

[0016] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0017] Because automotive steering components need to meet dimensional accuracy requirements after production in order to ensure the precision of vehicle steering, there is currently a lack of equipment for targeted testing of existing automotive steering components after production. In many cases, dimensional testing is only performed on individual parts, which fails to meet the overall dimensional testing requirements of the automotive steering components and thus cannot meet the requirements for automotive steering precision.

[0018] Based on the above problems, a fixture for measuring the dimensions of automotive steering components is designed:

[0019] The device includes a testing platform 1 and a driving component 2. A rotating testing rod 3 is provided on the testing platform 1, and the lower end of the rotating testing rod 3 is connected to the driving component 2. The driving component 2 drives the rotating testing rod 3 to rotate. A size scale 4 is marked on the testing platform 1, and the size scale 4 is set in conjunction with the rotating testing rod 3. The testing platform 1 set here is used to place automotive steering components. A drive unit 2 is also installed here, and a rotating detection rod 3 is set on the testing platform 1. During use, the rotating end of the automotive steering component must be placed on the testing platform 1, with the rotating end of the steering component engaging with the rotating detection rod 3. After placing the automotive steering component to be tested on the testing platform 1, the drive unit 2 is activated, and the servo motor 7 drives the rotating detection rod 3 to rotate. The rotating connecting rod 6 of the rotating detection rod 3 engages with the dimensional scale 4. The rotation angle data is detected by the angle sensor 8, which transmits the detected rotation angle data to the control system. The control system compares the data with preset dimensional standards to determine whether the dimensions of the steering component meet the requirements, thereby achieving the purpose of testing the automotive steering component.

[0020] The following further settings and optimizations were made to the above equipment:

[0021] The rotation detection rod 3 includes a fixed base rod 5 and a rotating connecting rod 6. Both ends of the fixed base rod 5 are detachably fixed to the detection platform 1. One end of the rotating connecting rod 6 is hinged to one end of the fixed base rod 5, and the other end mates with the dimension scale 4 on the detection platform 1. Because the effective measurement of the steering angle of the automotive steering component needs to be ensured during dimensional inspection, the fixed base rod 5 and the rotating connecting rod 6 are configured in this way. During inspection, the fixed base rod 5 is used as the base angle, and the rotating rod 6 is used to rotate the component. This rotation angle is then compared with the actual rotation angle of the automotive steering component to determine the specific accuracy of the steering.

[0022] The drive component 2 includes a servo motor 7 and an angle sensor 8. The angle sensor 8 is configured to work in conjunction with the output shaft of the servo motor 7, and the output shaft of the servo motor 7 is connected to the rotation shaft of the rotating link 6 via a coupling. The angle sensor 8 is used to more accurately determine the rotational accuracy of the servo motor 7. This is because it is necessary to ensure that the rotational angle of the rotating link 6 can be accurately read after a certain angle. Therefore, the angle sensor 8 is used to accurately read the rotational angle, thereby determining whether the steering performance of the produced automotive steering component meets the production and assembly requirements. The angle sensor 8 is connected to a control system. When an external force drives the drive shaft to rotate, the angle sensor 8 detects the rotational angle data and transmits it to the control system.

[0023] Therefore, a fixture for inspecting the dimensions of automotive steering components can meet the dimensional inspection requirements of automotive steering components, ensuring that the steering accuracy of the manufactured automotive steering components meets the vehicle's usage requirements, thereby achieving optimal driving and usage accuracy for the vehicle.

Claims

1. A fixture for inspecting the dimensions of automotive steering components, characterized in that: It includes a detection platform (1) and a driving component (2). A rotating detection rod (3) is provided on the detection platform (1), and the lower end of the rotating detection rod (3) is connected to the driving component (2). The driving component (2) drives the rotating detection rod (3) to rotate. The detection platform (1) is marked with size scale (4), and the size scale (4) is set in conjunction with the rotating detection rod (3).

2. The fixture for measuring the dimensions of automotive steering components according to claim 1, characterized in that: The rotating detection rod (3) includes a fixed base rod (5) and a rotating connecting rod (6). The two ends of the fixed base rod (5) are detachably fixed on the detection platform (1). One end of the rotating connecting rod (6) is fixedly hinged to one end of the fixed base rod (5), and the other end is matched with the size scale (4) on the detection platform (1).

3. The fixture for measuring the dimensions of automotive steering components according to claim 2, characterized in that: The drive unit (2) includes a servo motor (7) and an angle sensor (8). The angle sensor (8) is configured to work with the output shaft of the servo motor (7), and the output shaft of the servo motor (7) is connected to the rotation shaft of the rotating link (6) via a coupling.

4. The fixture for measuring the dimensions of automotive steering components according to claim 3, characterized in that: The angle sensor (8) is connected to a control system. When an external force drives the transmission shaft that the angle sensor (8) is connected to to rotate, the angle sensor (8) detects the rotation angle data and transmits it to the control system.