Steering knuckle positioning tool and steering knuckle testing device

Abstract

The utility model relates to a steering knuckle positioning tool and a steering knuckle testing device.The steering knuckle positioning tool comprises an installation base, the installation base is used for installing a steering knuckle, the steering knuckle is detachably connected with the installation base, the installation base is provided with an installation face, the installation face is arranged to be an inclined face, and the installation face is provided with a clamping groove; the mounting face inclines according to a preset angle, and the face, away from the steering pull rod, of the steering knuckle is attached to the mounting face. According to the positioning tool for the steering knuckle, the mounting surface is arranged to be the inclined surface, so that the steering knuckle can be inclined at a certain angle, the actual use state can be simulated, the structural path strength and weak points of the steering knuckle can be accurately obtained, and therefore the structure of the steering knuckle is adjusted, the structural strength of the steering knuckle is improved, the limit load is met, and the collision requirement is met; and the collision passing rate of the whole vehicle is greatly improved.

Description

Technical Field

[0001] This disclosure relates to the field of steering knuckle manufacturing technology, and in particular to a steering knuckle positioning fixture and a steering knuckle testing device. Background Technology

[0002] In the relevant technologies, the steering knuckle testing method simply fixes the steering knuckle and then conducts the test, which cannot simulate the use state of the steering knuckle, resulting in certain errors in the test and affecting the analysis of the structural strength of the steering knuckle. Utility Model Content

[0003] The purpose of this disclosure is to provide a positioning fixture for a steering knuckle and a testing device for a steering knuckle, so as to solve the problems in the aforementioned related technologies.

[0004] To achieve the above objectives, one aspect of this disclosure provides a positioning fixture for a steering knuckle, comprising:

[0005] Mounting bracket, the mounting bracket being used to mount a steering knuckle, the steering knuckle being detachably connected to the mounting bracket;

[0006] The mounting base has a mounting surface, which is set as an inclined surface. The mounting surface is inclined at a preset angle, and the side of the steering knuckle away from the steering tie rod is fitted with the mounting surface so that the steering knuckle is inclined.

[0007] Optionally, the mounting surface is provided with a positioning part for connecting with the steering knuckle.

[0008] Optionally, the positioning part is configured as a boss formed on the mounting surface, the boss protruding from the mounting surface in a direction perpendicular to the mounting surface, and the steering knuckle is provided with a positioning hole, the boss being used to engage with the positioning hole.

[0009] Optionally, the mounting surface is provided with a connecting portion, and the steering knuckle is detachably connected to the connecting portion;

[0010] The connecting part is configured as a threaded hole.

[0011] Optionally, there may be multiple connecting portions, which are spaced apart around the positioning portion.

[0012] Optionally, the mounting base includes a fixing member and an assembly, the assembly being connected to the fixing member, and the mounting surface being disposed on the side of the assembly facing away from the fixing member.

[0013] Optionally, both the fastener and the mounting component are constructed as plates, the fastener has a connecting surface, the mounting component is connected to the connecting surface, and the area of ​​the connecting surface is larger than the area of ​​the mounting surface.

[0014] A second aspect of this disclosure also provides a steering knuckle testing apparatus, including a pulling device and the aforementioned steering knuckle positioning fixture;

[0015] The pulling device is connected to the steering tie rod of the steering knuckle, and the pulling device is used to pull the steering tie rod of the steering knuckle.

[0016] Optionally, the pulling device includes a connecting seat and a pulling cylinder, the pulling cylinder being connected to the connecting seat, and the connecting seat being detachably connected to the steering tie rod.

[0017] Optionally, the pulling device further includes a detection sensor connected to the connecting seat and the pulling cylinder, the detection sensor being used to detect the force applied by the pulling cylinder.

[0018] The aforementioned technical solution, by fixing the steering knuckle with a mounting bracket, facilitates steering knuckle testing and prevents movement. The detachable connection between the steering knuckle and the mounting bracket allows for steering knuckle replacement and testing with different types. By setting the mounting surface to an inclined plane, the steering knuckle can be tilted at a certain angle, simulating actual usage conditions and accurately identifying the structural path strength and weak points of the steering knuckle. This allows for adjustments to the steering knuckle structure, improving its structural strength, meeting ultimate load requirements, and satisfying collision requirements, thereby significantly increasing the vehicle's crash pass rate.

[0019] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a structural schematic diagram of a positioning fixture according to one embodiment of the present disclosure.

[0022] Figure 2 This is a structural schematic diagram of the positioning tooling according to one embodiment of the present disclosure from another perspective.

[0023] Figure 3 This is a schematic diagram of the structure of a steering knuckle testing device according to one embodiment of the present disclosure.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Mounting base; 11. Mounting surface; 12. Positioning part; 13. Connecting part; 14. Fastener; 15. Assembly part; 16. Connecting surface;

[0026] 2. Steering knuckle; 22. Steering tie rod;

[0027] 100. Positioning fixture; 101. Pulling device; 102. Connecting seat; 103. Pulling cylinder; 104. Detection sensor. Detailed Implementation

[0028] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0029] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" are generally used to define the orientation of the accompanying drawings, and "inner" and "outer" refer to the inner and outer parts of the relevant components. Furthermore, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0031] As vehicle requirements for collisions become increasingly stringent, the steering knuckle, as a key structural component in both collision and fatigue durability conditions, plays a crucial role in its performance due to differences in strength. Consequently, the strength requirements for steering knuckles are constantly rising. Therefore, how to rationally design steering knuckles to meet these requirements is a key issue that needs to be considered. Consequently, during the manufacturing process of steering knuckles, it is necessary to conduct tests to improve the weak points in the structural strength of the steering knuckles.

[0032] In related technologies, the testing methods for steering knuckles simply involve fixing the steering knuckle and then conducting the test. This fails to simulate the usage conditions of the steering knuckle, leading to certain errors in the test and affecting the analysis of the steering knuckle's structural strength. For example, it cannot accurately simulate the stress conditions of the steering knuckle, nor can it accurately obtain the structural path strength and weak points of the steering knuckle, thus affecting the adjustment and manufacturing of the steering knuckle's structural strength.

[0033] Therefore, such as Figures 1-3 As shown, one aspect of this disclosure provides a positioning fixture 100 for a steering knuckle 2, including a mounting base 1.

[0034] Mounting bracket 1 is used to mount steering knuckle 2, and steering knuckle 2 is detachably connected to mounting bracket 1.

[0035] The mounting base 1 has a mounting surface 11, which is set as an inclined surface. The mounting surface 11 is inclined at a preset angle. The side of the steering knuckle 2 away from the steering tie rod 22 is fitted with the mounting surface 11 so that the steering knuckle 2 is inclined.

[0036] In the above technical solution, the steering knuckle 2 is fixed by the mounting base 1, which facilitates the testing of the steering knuckle 2 and prevents it from moving. The steering knuckle 2 is detachably connected to the mounting base 1, allowing for its replacement and testing with different steering knuckles. By setting the mounting surface 11 as an inclined surface, the steering knuckle 2 can be tilted at a certain angle, simulating actual usage conditions and accurately obtaining the structural path strength and weak points of the steering knuckle 2. This allows for adjustments to the steering knuckle 2's structure, improving its structural strength, meeting ultimate load requirements and collision requirements, and significantly increasing the vehicle's collision pass rate.

[0037] Optionally, in one embodiment of this disclosure, the preset angle can be set according to specific needs, thereby adjusting the tilt of the mounting surface 11. In some examples, the preset angle can be set according to the specific vehicle model, that is, the tilt of the mounting surface 11 can be set according to the specific vehicle model, without further limitation.

[0038] Optionally, in one embodiment of this disclosure, the mounting surface 11 is provided with a positioning part 12, which is used to connect with the steering knuckle 2. The positioning part 12 can position the steering knuckle 2, so that the steering knuckle 2 is fixed on the mounting surface 11, preventing the steering knuckle 2 from moving randomly on the mounting surface 11, ensuring a fixed position, and thus facilitating testing.

[0039] Optionally, in one embodiment of this disclosure, the positioning part 12 is configured as a boss formed on the mounting surface 11, the boss protruding from the mounting surface 11 in a direction perpendicular to the mounting surface 11, and the steering knuckle 2 is provided with a positioning hole, the boss being used to engage with the positioning hole.

[0040] The boss is formed by a partial outward protrusion of the mounting surface 11. The boss can engage with the positioning hole, and the cooperation between the boss and the positioning hole achieves a positioning function, preventing the steering knuckle 2 from moving relative to the mounting surface 11. It should be noted that the positioning hole is an existing structure on the steering knuckle 2, thus eliminating the need to change the structure of the steering knuckle 2. Installation positioning can be achieved simply by setting the boss to cooperate with the positioning hole, resulting in low cost and minimal modifications. In some examples, the boss can be a frustum of a cone, and the positioning hole can be a circular hole. The frustum and the circular hole are coaxially arranged, resulting in better installation positioning.

[0041] Alternatively, in another embodiment of this disclosure, the positioning part 12 is configured as a light hole, and the steering knuckle 2 is provided with a positioning hole. Positioning is achieved by passing a positioning pin through the positioning hole and the light hole.

[0042] Optionally, in one embodiment of this disclosure, the mounting surface 11 is provided with a connecting portion 13, and the steering knuckle 2 is detachably connected to the connecting portion 13. The connecting portion 13 enables connection with the steering knuckle 2, fixing the steering knuckle 2 to the mounting surface 11, ensuring the steering knuckle 2 is secure, facilitating testing of the steering knuckle 2, and also allowing for disassembly of the steering knuckle 2 from the mounting surface 11.

[0043] Optionally, in some examples, the connecting part 13 is a threaded hole. A connecting hole may be provided on the steering knuckle 2, which communicates with and is coaxial with the threaded hole. A connecting bolt passes through the connecting hole and is threadedly connected to the threaded hole, thus securing the steering knuckle 2 to the mounting surface 11. In other examples, the connecting part 13 is a snap-fit, and the steering knuckle 2 has a snap-fit ​​groove. The snap-fit ​​engages with the snap-fit ​​groove, thus fixing the steering knuckle 2 to the mounting surface 11.

[0044] Optionally, in one embodiment of this disclosure, there are multiple connecting portions 13, which are spaced apart around the positioning portion 12. This arrangement improves the structural strength of the connection between the steering knuckle 2 and the mounting surface 11, preventing loosening between them. In some examples, the multiple connecting portions 13 are spaced equally apart to ensure connection balance.

[0045] Optionally, in one embodiment of this disclosure, the mounting base 1 includes a fixing member 14 and an assembly 15, the assembly 15 being connected to the fixing member 14, and the mounting surface 11 being disposed on the side of the assembly 15 facing away from the fixing member 14.

[0046] The assembly 15 is used to mate with the steering knuckle 2, connecting the assembly 15 to the steering knuckle 2. The fixing member 14 is used to install and fix the assembly 15, thereby fixing the steering knuckle 2. In some examples, the fixing member 14 can be installed on the ground, with the assembly 15 located above it. After the steering knuckle 2 is connected to the assembly 15, the steering knuckle 2 is also located above the assembly 15. Of course, the fixing member 14 can also be installed on the base of the steering knuckle 2 testing device for convenient testing operations. In some examples, the assembly 15 and the fixing member 14 can be arranged vertically, while in other examples, they can be arranged horizontally.

[0047] Optionally, in one embodiment of this disclosure, both the fastener 14 and the mounting part 15 are constructed as plates, the fastener 14 has a connecting surface 16, the mounting part 15 is connected to the connecting surface 16, and the area of ​​the connecting surface 16 is larger than the area of ​​the mounting surface 11.

[0048] One side of the fastener 14 is designated as the connecting surface 16. The side of the fitting 15 opposite to the mounting surface 11 is connected to the connecting surface 16, thus firmly fixing the fitting 15 and the fastener 14 together. The area of ​​the connecting surface 16 is larger than the area of ​​the mounting surface 11, allowing the side of the fastener 14 opposite to the connecting surface 16 to connect to the ground, increasing the area of ​​the connecting surface 16, ensuring the stability of the mounting base 1, and without affecting the connection between the mounting surface 11 and the steering knuckle 2.

[0049] In some examples, the fastener 14 and the fitting 15 can be welded together. In other examples, the fastener 14 and the fitting 15 can be integrally formed, with the fitting 15 protruding from the connecting surface 16 of the fastener 14.

[0050] like Figure 3 As shown, a second aspect of this disclosure also provides a steering knuckle testing apparatus, including a pulling device 101 and a positioning fixture 100 for the steering knuckle 2 described above.

[0051] The pulling device 101 is connected to the steering tie rod 22 of the steering knuckle 2, and the pulling device 101 is used to pull the steering tie rod 22 of the steering knuckle 2. The steering knuckle 2 is fixed by the positioning fixture 100, and then the steering tie rod 22 of the steering knuckle 2 is pulled by the pulling device 101 to simulate the collision and pulling action, verify the strength of the steering knuckle 2 under this scenario, and identify the load range between the safety strength requirements and the fatigue durability strength requirements.

[0052] Optionally, in one embodiment of this disclosure, the pulling device 101 includes a connecting seat 102 and a pulling cylinder 103. The pulling cylinder 103 is connected to the connecting seat 102, and the connecting seat 102 is detachably connected to the steering tie rod 22. The connecting seat 102 is used to connect with the steering tie rod 22 to transmit force. It is understood that, for testing purposes, after the steering knuckle 2 is installed on the positioning fixture 100, the connecting seat 102 is connected to the steering tie rod 22. The pulling cylinder 103 generates a pulling force, which is transmitted to the steering tie rod 22 through the connecting seat 102, producing a pulling action. In some examples, the pulling cylinder 103 can be an electric cylinder or a pneumatic cylinder, capable of generating a linear pulling force.

[0053] Optionally, in one embodiment of this disclosure, the pulling device 101 further includes a detection sensor 104, which is connected to the connecting seat 102 and the pulling cylinder 103. The detection sensor 104 is used to detect the force applied by the pulling cylinder 103. By using the detection sensor 104, the force applied by the pulling cylinder 103 can be detected, thereby determining the applied load and facilitating the control of the testing process of the steering knuckle 2.

[0054] The testing process of the steering knuckle 2 testing device disclosed herein can be as follows: First, a simulation system is used to simulate the force direction of the steering knuckle 2 in a vehicle collision. A test bench is then erected, and the steering knuckle 2 sample is placed on the positioning fixture 100 to ensure that the posture of the steering knuckle 2 sample is consistent with that of the actual vehicle. A pulling device 101 is arranged and connected to the steering tie rod 22 of the steering knuckle 2 sample. Loading is controlled at a constant speed. When a significant decrease in the load on the pulling device 101 is detected, indicating obvious fracture failure of the steering knuckle 2 sample, loading is immediately stopped. The displacement and corresponding load values ​​during the test are recorded, and the force-displacement curve is finally output, which can determine the weak points in the structural strength of the steering knuckle 2 sample.

[0055] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0057] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A positioning fixture for a steering knuckle, characterized in that, include: Mounting bracket, the mounting bracket being used to mount a steering knuckle, the steering knuckle being detachably connected to the mounting bracket; The mounting base has a mounting surface, which is set as an inclined surface. The mounting surface is inclined at a preset angle, and the side of the steering knuckle away from the steering tie rod is fitted with the mounting surface so that the steering knuckle is inclined.

2. The positioning fixture for the steering knuckle according to claim 1, characterized in that, The mounting surface is provided with a positioning part, which is used to connect with the steering knuckle.

3. The positioning fixture for the steering knuckle according to claim 2, characterized in that, The positioning part is constructed as a boss formed on the mounting surface. The boss protrudes from the mounting surface in a direction perpendicular to the mounting surface. The steering knuckle is provided with a positioning hole, and the boss is used to engage with the positioning hole.

4. The positioning fixture for the steering knuckle according to claim 2, characterized in that, The mounting surface is provided with a connecting part, and the steering knuckle is detachably connected to the connecting part; The connecting part is configured as a threaded hole.

5. The positioning fixture for the steering knuckle according to claim 4, characterized in that, The number of connecting parts is multiple, and the multiple connecting parts are arranged at intervals around the positioning part.

6. The positioning fixture for the steering knuckle according to any one of claims 1-5, characterized in that, The mounting base includes a fixing member and an assembly member, the assembly member being connected to the fixing member, and the mounting surface being disposed on the side of the assembly member facing away from the fixing member.

7. The positioning fixture for the steering knuckle according to claim 6, characterized in that, Both the fastener and the mounting component are plate-shaped. The fastener has a connecting surface, and the mounting component is connected to the connecting surface. The area of ​​the connecting surface is larger than the area of ​​the mounting surface.

8. A steering knuckle testing device, characterized in that, Includes a pulling device and a positioning fixture for the steering knuckle as described in any one of claims 1-7; The pulling device is connected to the steering tie rod of the steering knuckle, and the pulling device is used to pull the steering tie rod of the steering knuckle.

9. The steering knuckle testing device according to claim 8, characterized in that, The pulling device includes a connecting seat and a pulling cylinder, the pulling cylinder being connected to the connecting seat, and the connecting seat being detachably connected to the steering tie rod.

10. The steering knuckle testing device according to claim 9, characterized in that, The pulling device also includes a detection sensor, which is connected to the connecting seat and the pulling cylinder, and is used to detect the force applied by the pulling cylinder.

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