A steering knuckle rod assembly sealing detection tool
Patent Information
- Application Number
- CN202522132190.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0003]但是，其将拉杆总成置于水中，在检测完成后还存在液体渗入不便排出的问题；此外，由于其通过浸水来进行检测，因此在检测时的拉杆总成上无法装配电机，只能在检测完成后再与电机装配，其与电机的装配操作过程可能会对拉杆总成的密封性再次造成影响
[0004]本实用新型的目的在于克服背景技术的缺点，提供一种转向器拉杆总成密封性检测工装。
Smart Images
Figure CN224788202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts repair, and more specifically, to a tooling for testing the sealing performance of a steering gear tie rod assembly. Background Technology
[0002] After assembly, the automotive steering tie rod assembly needs to undergo a sealing test to ensure that contaminants cannot enter the assembly. In existing technologies, the sealing performance of the tie rod assembly is determined by placing it in water, introducing gas into it, and observing whether bubbles are generated in the water. This method effectively solves the problem of sealing performance testing for tie rod assemblies.
[0003] However, by placing the tie rod assembly in water, there is still a problem of liquid seepage that is difficult to drain after the test is completed. In addition, since the test is conducted by immersion, the motor cannot be installed on the tie rod assembly during the test. It can only be installed on the motor after the test is completed. The process of installing the motor on the motor may affect the sealing of the tie rod assembly again. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a tooling for testing the sealing performance of a steering gear tie rod assembly.
[0005] The objective of this utility model is achieved through the following technical solution: A tooling for testing the sealing performance of a steering gear tie rod assembly includes: The workbench is equipped with a fixing device for fixing the steering gear tie rod assembly; A sealing assembly used to seal the vent plug of the steering tie rod assembly; Air source, which is used to connect the air port to the steering gear tie rod assembly; and The air pressure sensor, which is connected to the air vent, is used to detect the air pressure inside the steering linkage assembly.
[0006] In the steering gear tie rod assembly sealing test fixture of this utility model, the tie rod assembly is directly supported on the workbench for testing, without the need to be submerged in water. During the testing process, gas is supplied into the tie rod assembly through an air source and maintained at pressure. The pressure change inside the tie rod assembly is observed through a pressure sensor. If the pressure change is less than the threshold within a specified time, the sealing performance of the tie rod assembly is deemed qualified.
[0007] The aforementioned testing fixture can quickly test the sealing performance of the tie rod assembly, and since the test is performed after the tie rod assembly and motor are assembled, it ensures the accuracy of the tie rod assembly sealing performance test.
[0008] Furthermore, the fixing device includes a plurality of support members for supporting the steering gear tie rod assembly, and at least one set of support members is also connected to a fastening member for fastening onto the steering gear tie rod assembly, so as to more securely support and fix the steering gear tie rod assembly.
[0009] Furthermore, the fixing device includes a first support member, a second support member, and a third support member; Both the first and second support members have notches for securing the steering gear tie rod assembly. The third support member supports the motor of the steering gear tie rod assembly, ensuring uniform support throughout the tie rod assembly.
[0010] Furthermore, the workbench is equipped with horizontal slide rails; The first support is supported on the worktable surface located at the end of the slide rail, and the second and third supports are slidably mounted on the slide rail to accommodate and support tie rod assemblies of different lengths.
[0011] Furthermore, the gap is V-shaped.
[0012] Furthermore, the sealing assembly includes a seal and a seat; the seat is mounted on the worktable, and the seal is movably connected to the seat via a set of linkage mechanisms.
[0013] Furthermore, the linkage mechanism includes a first swing arm, a second swing arm, and a third swing arm whose swing axes are parallel to each other; One end of the first swing arm is hinged to the seat; one end of the second swing arm is hinged to the seat, and the other end is provided with a seal; the first end of the third swing arm is hinged to the portion between the two ends of the first swing arm, and the second end is hinged to the portion between the two ends of the second swing arm.
[0014] Furthermore, the gas source is detachably connected to the air port via a quick connector, facilitating quick assembly and disassembly.
[0015] Furthermore, the pressure sensor is connected to the quick connector.
[0016] Furthermore, the lower end of the workbench is equipped with several rollers to facilitate the transfer of the testing fixtures. Attached Figure Description
[0017] Figure 1 This is a front view of the steering gear tie rod assembly sealing test fixture of this utility model; Figure 2 This is a perspective view of the sealing performance testing fixture for the steering gear tie rod assembly of this utility model; Figure 3 for Figure 2 An enlarged view of part A; Figure 4 for Figure 2 An enlarged view of part B; The icons have the following meanings: 1-Workbench, 10-Roller, 2-Fixing device, 20-First support member, 21-Second support member, 22-Third support member, 23-Slide rail, 24-Seat body, 25-Snap-fit member, 3-Seal member, 4-Quick connector, 5-Linkage mechanism, 50-First swing arm, 51-Second swing arm, 52-Third swing arm. Detailed Implementation
[0018] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0019] Reference Figures 1 to 4 This utility model discloses a steering gear tie rod assembly sealing test fixture, including a worktable 1, a fixing device 2, a sealing component, an air source (not shown) and an air pressure sensor (not shown).
[0020] The fixing device 2 is installed on the workbench 1 and is used to support and fix the steering gear tie rod assembly.
[0021] The sealing assembly is used to block the vent plug of the steering linkage assembly. The vent plug is a valve structure and can block the valve plug hole of the vent valve through the sealing assembly.
[0022] The air source is used to supply pressurized gas. It is connected to the air port of the steering gear tie rod assembly to inject gas into the steering gear tie rod assembly. The gas sensor is connected to the air port of the steering gear tie rod assembly to detect the air pressure inside the steering gear tie rod assembly.
[0023] In the steering gear tie rod assembly sealing test fixture of this utility model, during the test process, gas is supplied into the tie rod assembly through an air source and pressure is maintained. The pressure change inside the tie rod assembly is observed through a pressure sensor. If the pressure change is less than the threshold within a specified time, the sealing performance of the steering gear tie rod assembly is judged to be qualified.
[0024] For example, the air source inflation pressure is 30±5 kPa, the inflation time is 5s, the pressure holding time is 8s, the detection time is 5s, and the pressure change is <100Pa to be considered qualified.
[0025] The fixing device 2 includes several support members for supporting the steering gear tie rod assembly. The number of support members can be adjusted according to the length of the steering gear tie rod assembly and the support position, and is not limited here.
[0026] In order to make the fixing device 2 more stable in fixing the steering gear tie rod assembly, at least one set of support members are also connected to a clamping member 25 for clamping onto the steering gear tie rod assembly, thereby reducing the shaking of the steering gear tie rod assembly.
[0027] For example, a set of screws can be vertically installed at the top of the support member, and the clamping member 25 is installed at the bottom of the screws. By turning the screws, the clamping member 25 can be pushed down onto the steering gear tie rod assembly.
[0028] Reference Figure 1 and Figure 2 In this embodiment, the fixing device 2 includes a first support member 20, a second support member 21 and a third support member 22; both the first support member 20 and the second support member 21 are provided with notches for locking the steering gear tie rod assembly, and the rod part of the steering gear tie rod assembly can be placed in the notch; The third support member 22 is used to support the motor of the steering gear tie rod assembly, ensuring the uniformity of support at all parts of the steering gear tie rod assembly.
[0029] Alternatively, the notch may be V-shaped, rectangular, or semi-circular.
[0030] In one embodiment, to accommodate steering linkage assemblies of different lengths, the fixing device 2 also includes a set of slide rails 23, wherein the slide rails 23 are mounted on the worktable 1; see reference Figure 2 The first support member 20 is supported on the surface of the worktable 1 located on one side of the first end of the slide rail 23. The second support member 21 and the third support member 22 are slidably installed on the slide rail 23, and the third support member 22 is located between the first support member 20 and the second support member 21. The support positions of the second support member 21 and the third support member 22 can be flexibly adjusted according to the total length of the steering gear tie rod.
[0031] Reference Figure 3 In this embodiment, the sealing assembly includes a sealing element 3 and a seat 24. The seat 24 is mounted on the workbench 1, and the sealing element 3 is movably connected to the seat 24 through a set of linkage mechanisms 5. The sealing element 3 can abut against the valve plug hole of the vent plug to achieve the purpose of sealing the vent plug.
[0032] Among them, the linkage mechanism 5 can be a conventional hinged linkage.
[0033] In this embodiment, refer to Figure 3 The linkage mechanism 5 includes a first swing arm 50, a second swing arm 51, and a third swing arm 52 whose swing axes are parallel to each other.
[0034] The first swing arm 50 has one end hinged to the seat 24 and the other end has a handle for applying force; the second swing arm has one end hinged to the seat 24 and the other end is fitted with a seal 3; the first end of the third swing arm 52 is hinged to the portion between the two ends of the first swing arm 50 and the second end is hinged to the portion between the two ends of the second swing arm 51.
[0035] In use, by turning the handle of the first swing arm 50 in the opposite direction, the seal 3 on the second swing arm 51 will disengage from the vent plug of the steering gear tie rod assembly. When the handle is turned in the forward direction so that the third swing arm 52 is parallel to the first swing arm 50, the third swing arm 52 and the second swing arm 51 are perpendicular, so that the seal 3 on the second swing arm 51 blocks the vent plug.
[0036] Among them, reference Figure 1 The air source is detachably connected to the air port of the steering gear tie rod assembly via quick connector 4, and the air pressure sensor is connected to quick connector 4, which can communicate with the inside of the steering gear tie rod assembly to measure the air pressure.
[0037] Reference Figure 1 In addition, in some embodiments, a number of rollers 10 are provided at the lower end of the workbench 1 to facilitate the transfer of the inspection fixture.
[0038] In addition, refer to Figure 4 In some embodiments, the fastening member 25 can also be mounted on the first support member 20 via a set of linkage mechanisms 5. In this case, the fastening member 25 is located on the free end of the second swing arm 51, and the fastening member 25 can be easily fastened to or removed from the steering gear tie rod assembly.
[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0040] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A tooling for testing the sealing performance of a steering gear tie rod assembly, characterized in that, include: The workbench is equipped with a fixing device for fixing the steering gear tie rod assembly; A sealing assembly for sealing the vent plug of the steering linkage assembly; An air source, which has an air port for connecting the steering gear tie rod assembly; as well as A pressure sensor, which is connected to the air vent, is used to detect the air pressure inside the steering linkage assembly.
2. The steering gear tie rod assembly sealing test fixture according to claim 1, characterized in that, The fixing device includes a plurality of support members for supporting the steering gear tie rod assembly, and at least one set of the support members is also connected to a fastening member for fastening onto the steering gear tie rod assembly.
3. The steering gear tie rod assembly sealing test fixture according to claim 2, characterized in that, The support consists of three components, namely a first support component, a second support component, and a third support component; Both the first and second support members are provided with notches for locking the steering gear tie rod assembly, and the third support member is used to support the motor on the steering gear tie rod assembly.
4. The steering gear tie rod assembly sealing test fixture according to claim 3, characterized in that, The workbench is equipped with horizontal slide rails; The first support member is supported on the surface of the worktable located at the end of the slide rail, and the second and third support members are slidably mounted on the slide rail.
5. The steering gear tie rod assembly sealing test fixture according to claim 3, characterized in that, The gap is V-shaped.
6. The steering gear tie rod assembly sealing test fixture according to claim 1, characterized in that, The sealing assembly includes a seal and a base; the base is mounted on the worktable, and the seal is movably connected to the base via a set of linkage mechanisms.
7. The steering gear tie rod assembly sealing test fixture according to claim 6, characterized in that, The linkage mechanism includes a first swing arm, a second swing arm, and a third swing arm whose swing axes are parallel to each other; One end of the first swing arm is hinged to the seat; one end of the second swing arm is hinged to the seat, and the other end is provided with the sealing element; the first end of the third swing arm is hinged to the portion between the two ends of the first swing arm, and the second end is hinged to the portion between the two ends of the second swing arm.
8. The steering gear tie rod assembly sealing test fixture according to claim 1, characterized in that, The gas source is detachably connected to the air port via a quick connector.
9. The steering gear tie rod assembly sealing test fixture according to claim 8, characterized in that, The pressure sensor is connected to the quick connector.
10. The steering gear tie rod assembly sealing test fixture according to claim 1, characterized in that, The lower end of the workbench is equipped with several rollers.