Test tool for automobile steering knuckle

Abstract

The utility model discloses a test tool for an automobile steering knuckle. The test tool comprises a workbench; the fixture plate is vertically arranged on the upper side of the workbench, an upper control arm replacement part is arranged on the upper portion of the fixture plate, a steering pull rod arm replacement part is arranged on the left portion of the fixture plate, a front lower control arm replacement part is arranged on the right portion of the fixture plate, a front upper control arm replacement part is arranged on one side of the steering pull rod arm replacement part, and a front lower control arm replacement part is arranged on the other side of the steering pull rod arm replacement part. A shock absorber replacement part is arranged in the middle of the front upper control arm replacement part, extends downwards and is connected with the workbench; the stress plate is arranged on the front side of the automobile steering knuckle, and the stress plate is connected with a stress application cylinder. According to the utility model, the problem that a test result deviates from an actual working condition due to the fact that an existing test tool is difficult to accurately simulate complex loads which are in multi-direction and dynamically change during actual driving of the automobile steering knuckle can be solved.

Description

Technical Field

[0001] The utility model relates to the field of automobile component testing, in particular to a testing tool for an automobile steering knuckle. Background Art

[0002] With the rapid development of the automobile industry, the safety and handling performance of automobiles have received more and more attention. The automobile steering knuckle is an important component in the automobile steering system, and its performance directly affects the handling stability and safety of the automobile. In order to ensure the quality of the steering knuckle, it is necessary to conduct strict performance tests on it during the production process. Existing automobile steering knuckles need to undergo strict performance tests during the design and production process to ensure their reliability and durability under various working conditions. Traditional steering knuckle testing methods usually rely on simple mechanical loading devices, which can often only perform force or displacement loading in a single direction and cannot simulate the multi-directional and complex loads that the steering knuckle bears during actual driving, resulting in a large difference between the test results and the actual working conditions. Therefore, it is imperative to develop a new type of automobile steering knuckle test fixture to improve detection efficiency and accuracy. Utility Model Content

[0003] The utility model provides a test fixture for an automobile steering knuckle, which can solve the problem that the existing test fixture is difficult to accurately simulate the multi-directional and dynamically changing complex loads encountered by the automobile steering knuckle during actual driving, resulting in deviations between the test results and the actual working conditions.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test fixture for an automobile steering knuckle, comprising a workbench; a fixture plate, which is vertically arranged on the upper side of the workbench, an upper control arm replacement part is arranged on the upper part of the fixture plate, a steering tie rod arm replacement part is arranged on the left part of the fixture plate, a front lower control arm replacement part is arranged on the right part of the fixture plate, a front upper control arm replacement part is arranged on one side of the steering tie rod arm replacement part, a shock absorber replacement part is arranged in the middle part of the front upper control arm replacement part, and the shock absorber replacement part extends downward and is connected to the workbench; the upper control arm replacement part includes a ball pin connecting block obliquely arranged on one side of the fixture plate, and a ball pin assembly is arranged on the end of the ball pin connecting block; the steering tie rod arm replacement part includes a ball pin assembly obliquely arranged on the The steering tie rod adapter arm on one side of the fixture plate, the end of the steering tie rod adapter arm is provided with a steering tie rod ball pin arm; the front upper control arm replacement part includes a connecting rod obliquely arranged on one side of the fixture plate, and the end of the connecting rod is provided with a first press-fit ball pin assembly; the front lower control arm replacement part includes a tooling block obliquely arranged on one side of the fixture plate, and the end of the tooling block is provided with a second press-fit ball pin assembly; the ball pin assembly, the steering tie rod ball pin arm, the first press-fit ball pin assembly and the second press-fit ball pin assembly are used to fix the automobile steering knuckle; a force plate, which is arranged on the front side of the automobile steering knuckle, and the force plate is connected to the booster cylinder, which can more realistically simulate the complex loads that the steering knuckle bears during actual driving, thereby improving the accuracy of the test results.

[0005] Preferably, the ball pin connecting block, the steering tie rod connecting arm, the tooling block and the end of the connecting rod away from the automobile steering knuckle are all provided with a first rod end joint bearing, and a first tooling fixing block is provided on the first rod end joint bearing. The first tooling fixing block is connected to the fixture plate through a support plate, which is easy to install.

[0006] Preferably, a first U-shaped installation groove is provided on the first tool fixing block, and the first rod end joint bearing is movably arranged in the first U-shaped installation groove, which is convenient for processing and installation.

[0007] Preferably, the shock absorber replacement part includes a screw rod obliquely arranged on the upper side of the workbench, and a second tooling fixing block connected to the workbench is arranged at the bottom of the screw rod, and the use of the screw rod has low cost.

[0008] Preferably, both ends of the screw rod are provided with a second rod end joint bearing, and the second rod end joint bearing is respectively connected to the connecting rod and the second tooling fixing block, so that the installation is convenient.

[0009] Preferably, a second U-shaped mounting groove is provided on the second tooling fixing block, and the second rod end joint bearing is movably arranged in the second U-shaped mounting groove, which is convenient for processing.

[0010] Preferably, a slot for installing the second rod end joint bearing is provided in the middle of the connecting rod, which facilitates installation.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] It has a simple structure and is easy to operate. It can simulate the complex loads that the steering knuckle bears in actual driving more realistically, improve the accuracy of the test results, and uses wear-resistant materials, so the maintenance cost is low and the service life is long, which is suitable for early research and development verification. It can solve the problem that the existing test tooling is difficult to accurately simulate the multi-directional and dynamically changing complex loads encountered by the automobile steering knuckle in actual driving, resulting in deviations between the test results and the actual working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural diagram of the utility model in use state;

[0015] Figure 3 It is a three-dimensional structural diagram of the upper control arm replacement part of the utility model;

[0016] Figure 4 A three-dimensional structural diagram of the steering tie rod arm replacement part of the utility model

[0017] Figure 5 It is a three-dimensional structural diagram of the replacement part of the front lower control arm of the utility model;

[0018] Figure 6 It is a three-dimensional structural diagram of the front upper control arm replacement part and the shock absorber replacement part of the utility model.

[0019] Reference numerals:

[0020] 1. Workbench, 2. Fixture plate, 3. Replacement part of upper control arm, 31. Ball pin connection block, 32. Ball pin assembly, 4. Replacement part of steering tie rod arm, 41. Steering tie rod adapter arm, 42. Steering tie rod ball pin arm, 5. Replacement part of front lower control arm, 51. Fixture block, 52. Second press-fit ball pin assembly, 6. Replacement part of shock absorber, 61. Screw, 62. Second rod end joint bearing, 7. Replacement part of front upper control arm, 71. Connecting rod, 72. First press-fit ball pin assembly, 8. Automobile steering knuckle, 9. Load plate, 10. First rod end joint bearing, 11. First fixture fixing block, 111. First U-shaped mounting groove, 711. Slot, 12. Backing plate, 13. Second fixture fixing block. 131. Second U-shaped mounting groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1-6 As shown, the utility model solves the problem that the existing test fixture is difficult to accurately simulate the multi-directional and dynamically changing complex loads encountered by the automobile steering knuckle in actual driving, resulting in deviations between the test results and the actual working conditions. The utility model provides the following technical solutions: a test fixture for an automobile steering knuckle, comprising a workbench 1; a fixture plate 2, which is vertically arranged on the upper side of the workbench 1, an upper control arm replacement part 3 is arranged on the upper part of the fixture plate 2, a steering tie rod arm replacement part 4 is arranged on the left part of the fixture plate 2, a front lower control arm replacement part 5 is arranged on the right part of the fixture plate 2, a front upper control arm replacement part 7 is arranged on one side of the steering tie rod arm replacement part 4, a shock absorber replacement part 6 is arranged in the middle part of the front upper control arm replacement part 7, and the shock absorber replacement part 6 extends downward and is connected to the workbench 1; the upper control arm replacement part 3 includes a ball pin connecting block 31 obliquely arranged on one side of the fixture plate 2, and a ball pin is arranged at the end of the ball pin connecting block 31. Component 32; the steering tie rod arm replacement part 4 includes a steering tie rod adapter arm 41 obliquely arranged on one side of the fixture plate 2, and a steering tie rod ball pin arm 42 is arranged at the end of the steering tie rod adapter arm 41; the front upper control arm replacement part 7 includes a connecting rod 71 obliquely arranged on one side of the fixture plate 2, and a first press-fit ball pin component 72 is arranged at the end of the connecting rod 71; the front lower control arm replacement part 5 includes a tooling block 51 obliquely arranged on one side of the fixture plate 2, and a second press-fit ball pin component 52 is arranged at the end of the tooling block 51; the ball pin component 32, the steering tie rod ball pin arm 42, the first press-fit ball pin component 72 and the second press-fit ball pin component 52 are used to fix the automobile steering knuckle 8; a force plate 9, which is arranged on the front side of the automobile steering knuckle 8, and the force plate 9 is connected to the booster cylinder, which can more realistically simulate the complex loads that the steering knuckle bears during actual driving, thereby improving the accuracy of the test results.

[0023] In this embodiment, if Figure 3-6 As shown, the ball pin connecting block 31, the steering tie rod connecting arm 41, the tooling block 51 and the connecting rod 71 are all provided with a first rod end joint bearing 10 at one end away from the automobile steering knuckle 8, and the first rod end joint bearing 10 is provided with a first tooling fixing block 11, and the first tooling fixing block 11 is connected to the fixture plate 2 through a support plate 12, which is easy to install.

[0024] In this embodiment, if Figure 3-6 As shown, a first U-shaped installation groove 111 is provided on the first tool fixing block 11 , and the first rod end joint bearing 10 is movably arranged in the first U-shaped installation groove 111 , which is convenient for processing and installation.

[0025] In this embodiment, if Figure 6 As shown, the shock absorber replacement part 6 includes a screw rod 61 obliquely arranged on the upper side of the workbench 1 , and a second tooling fixing block 13 connected to the workbench 1 is arranged at the bottom of the screw rod 61 , and the use of the screw rod has low cost.

[0026] In this embodiment, if Figure 6 As shown, both ends of the screw rod 61 are provided with second rod end joint bearings 62 , and the second rod end joint bearings 62 are respectively connected to the connecting rod 71 and the second tooling fixing block 13 , which is convenient for installation.

[0027] In this embodiment, if Figure 6 As shown, a second U-shaped installation groove 131 is provided on the second tool fixing block 13 , and the second rod end joint bearing 62 is movably arranged in the second U-shaped installation groove 131 , which is convenient for processing.

[0028] In this embodiment, if Figure 1 As shown, a slot 711 for mounting the second rod end joint bearing 62 is provided in the middle of the connecting rod 71, which is convenient for installation.

[0029] In this embodiment, if Figure 1-2 As shown, first, place the automobile steering knuckle 8 on the workbench 1, and fix the steering knuckle 8 on the fixture plate 2 through the ball pin assembly 32, the steering tie rod arm replacement part 4, the front upper control arm replacement part 7 and the front lower control arm replacement part 5, the steering tie rod ball pin arm 42, the first press-fit ball pin assembly 72 and the second press-fit ball pin assembly 52. ​​A force plate 9 is installed on the upper side of the steering knuckle 8, and the force plate 9 is connected to the booster cylinder; a simulated load is applied to the force plate 9 on the front side of the steering knuckle 8 through the booster cylinder to simulate the force that the steering knuckle is subjected to during actual driving of the automobile; after the test is completed, a test report is generated based on the collected data to evaluate the performance of the steering knuckle 8.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A test fixture for automobile steering knuckle, characterized in that: include: Workbench (1); A fixture plate (2) is vertically arranged on the upper side of the workbench (1); an upper control arm replacement part (3) is arranged on the upper part of the fixture plate (2); a steering tie rod arm replacement part (4) is arranged on the left part of the fixture plate (2); a front lower control arm replacement part (5) is arranged on the right part of the fixture plate (2); a front upper control arm replacement part (7) is arranged on one side of the steering tie rod arm replacement part (4); a shock absorber replacement part (6) is arranged in the middle part of the front upper control arm replacement part (7); the shock absorber replacement part (6) extends downward and is connected to the workbench (1); The upper control arm replacement part (3) comprises a ball pin connection block (31) obliquely arranged on one side of the fixture plate (2), and a ball pin assembly (32) is arranged at the end of the ball pin connection block (31); The steering tie rod arm replacement part (4) comprises a steering tie rod adapter arm (41) obliquely arranged on one side of the fixture plate (2), and a steering tie rod ball pin arm (42) is arranged at the end of the steering tie rod adapter arm (41); The front upper control arm replacement part (7) comprises a connecting rod (71) obliquely arranged on one side of the fixture plate (2), and a first press-fit ball pin assembly (72) is arranged at the end of the connecting rod (71); The front lower control arm replacement part (5) comprises a tooling block (51) obliquely arranged on one side of the fixture plate (2), and a second press-fit ball pin assembly (52) is arranged at the end of the tooling block (51); The ball pin assembly (32), the steering tie rod ball pin arm (42), the first press-fit ball pin assembly (72) and the second press-fit ball pin assembly (52) are used to fix the automobile steering knuckle (8); A force-bearing plate (9) is arranged on the front side of the automobile steering knuckle (8), and the force-bearing plate (9) is connected to a force-adding cylinder.

2. The test fixture for automobile steering knuckle according to claim 1, characterized in that: The ball pin connecting block (31), the steering tie rod connecting arm (41), the tooling block (51) and the end of the connecting rod (71) away from the automobile steering knuckle (8) are all provided with a first rod end joint bearing (10), and the first rod end joint bearing (10) is provided with a first tooling fixing block (11), and the first tooling fixing block (11) is connected to the fixture plate (2) through a support plate (12).

3. The test fixture for automobile steering knuckle according to claim 2, characterized in that: The first tool fixing block (11) is provided with a first U-shaped installation groove (111), and the first rod end joint bearing (10) is movably arranged in the first U-shaped installation groove (111).

4. The test fixture for automobile steering knuckle according to claim 1, characterized in that: The shock absorber replacement part (6) comprises a screw rod (61) obliquely arranged on the upper side of the workbench (1), and a second tool fixing block (13) connected to the workbench (1) is arranged at the bottom of the screw rod (61).

5. The test fixture for automobile steering knuckle according to claim 4, characterized in that: Second rod end joint bearings (62) are provided at both ends of the screw rod (61), and the second rod end joint bearings (62) are respectively connected to the connecting rod (71) and the second tool fixing block (13).

6. The test fixture for automobile steering knuckle according to claim 5, characterized in that: The second tool fixing block (13) is provided with a second U-shaped installation groove (131), and the second rod end joint bearing (62) is movably arranged in the second U-shaped installation groove (131).

7. The test fixture for automobile steering knuckle according to claim 5, characterized in that: A slot (711) for mounting the second rod end joint bearing (62) is provided in the middle of the connecting rod (71).

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