Rear auxiliary frame test fixing device

Abstract

The utility model relates to the technical field of vehicle test, and discloses a rear subframe test fixing device, which comprises a test bench, a first fixing assembly is arranged on the base surface of the test bench, a mounting base is mounted on the outer wall of the test bench, a second fixing assembly is mounted on the inner wall of the mounting base, and the first fixing assembly and the second fixing assembly are arranged on the base surface of the test bench. A mounting frame is mounted on the outer wall of the mounting base, a steel rope is mounted on the outer wall of the mounting frame, a first loading plate is mounted at one end of the steel rope, a side fixing plate is mounted on the side wall of the first loading plate, a second loading plate is mounted on the side wall of the side fixing plate, and a third loading plate is arranged at the bottom of the outer wall of the side fixing plate. A rear auxiliary frame is installed on the inner wall of the third loading plate. According to the utility model, the steel rope is arranged and drives the loading plate I to be pulled to a proper position, so that half-load or full-load simulation can be conveniently carried out on the wheel core point of the rear auxiliary frame, and the problem that the current testing device is inconvenient to evaluate the durability of the rear auxiliary frame is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle testing, in particular to a rear subframe testing and fixing device. Background Art

[0002] The rear subframe is an important part of an automobile. It connects the suspension system and the vehicle body, and has a direct impact on the comfort and handling performance of the vehicle. During the automobile design and manufacturing process, in order to ensure the performance and reliability of the suspension system, a rear subframe fixing test device is used to conduct a series of tests to ensure the accuracy of the tests. By simulating various stresses during vehicle driving, such as lateral load endurance tests, the structural strength and durability of the rear subframe are inspected, and it is evaluated whether the subframe can effectively improve the comfort and handling performance of the vehicle. For different vehicle models and suspension types, such as multi-link suspension or torsion beam suspension, the rear subframe fixing test device needs to be able to adapt to different structures and installation requirements. Generally speaking, the rear subframe fixing test device is a key device to ensure that the automobile suspension system can meet the design requirements and safety standards;

[0003] The current test device's durability evaluation of the rear subframe includes five different tests, and the load application positions for each test are different. Especially in the vertical durability test, the load application point is located at the wheel axle center. At present, most fixing structures adopt the rail installation method, but the angle adjustment range of this method is limited, resulting in inconvenience in operation. In addition, when performing tests, the installation of the fixing device usually relies on manual operation. If the rear subframe is not correctly installed in place and the test is started, it will cause inaccuracy of the experimental data, thereby affecting the reliability of the test results. Therefore, a rear subframe testing and fixing device is needed to improve the above problems. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that when detecting the rear subframe, most of its fixing structures adopt the rail installation method, but the angle adjustment range of this method is limited, resulting in inconvenience in operation.

[0005] To solve the above technical problems, the technical solution of the utility model is to provide a rear subframe testing and fixing device, including a test bench. A first fixing component is arranged on the base surface of the test bench. An installation base is installed on the outer wall of the test bench. A second fixing component is installed on the inner wall of the installation base. An installation frame is installed on the outer wall of the installation base. A steel rope is installed on the outer wall of the installation frame. One end of the steel rope is installed with a first loading plate. A side fixing plate is installed on the side wall of the first loading plate. A second loading plate is installed on the side wall of the side fixing plate. A third loading plate is arranged at the bottom of the outer wall of the side fixing plate. A rear subframe is installed on the inner wall of the third loading plate. Limiting holes are opened on the opposite side walls of the installation base.

[0006] Optionally, the second fixing component is located on one side of the mounting base. The mounting base is of an arc structure. There are two groups of mounting brackets, which are respectively located on opposite side walls of the mounting base. There are multiple groups of limiting holes, which are respectively located on the outer wall of the mounting base.

[0007] Optionally, there are two groups of the first fixing components, which are respectively located on the base surface of the test bench. The first fixing component includes a bottom plate base, which is installed on the base surface of the test bench. A triangular reinforcing plate and a mounting plate are installed on the outer wall of the bottom plate base. A limiting plate is installed on the outer wall of the mounting plate. A limiting groove is opened on the outer wall of the limiting plate. A reinforcing rib is installed on the side wall of the limiting plate. One end of the reinforcing rib is connected to the side wall of the bottom plate base. A rear subframe is connected to the inner wall of the limiting groove.

[0008] Optionally, there are two groups of the triangular reinforcing plates, which are respectively located on the outer wall of the bottom plate base. The limiting plate is inclined at a certain angle relative to the surface of the bottom plate base.

[0009] Optionally, there are two groups of steel ropes, which are respectively located on the outer wall of the mounting bracket. There are two groups of side fixing plates, which are respectively located on opposite sides of the mounting base. There are two groups of bottom plate bases, which are respectively located on the base surface of the test bench.

[0010] Optionally, the second fixing component includes a connecting block, which is installed on the side wall of the mounting base. One end of the connecting block is installed with a fixed base. A spring mounting sleeve is installed on the outer wall of the fixed base. One end of the spring mounting sleeve is connected to the outer wall of the rear subframe. A shock absorber connecting plate is installed on the side wall of the fixed base. A fixing groove is opened on the outer wall of the shock absorber connecting plate. An installation cylinder is installed on the outer wall of the fixed base.

[0011] Optionally, a first mounting hole is provided on the outer wall of the limiting plate. There are multiple groups of the first mounting holes, which are respectively located on the outer wall of the limiting plate. A second mounting hole is provided on the outer wall of the shock absorber connecting plate. There are multiple groups of the second mounting holes, which are respectively located on the outer wall of the shock absorber connecting plate.

[0012] Optionally, there are multiple groups of the connecting blocks, which are respectively located on opposite side walls of the mounting base. There are multiple groups of the spring mounting sleeves, which are respectively located on the outer wall of the fixed base. There are two groups of the shock absorber connecting plates, which are respectively located on opposite side walls of the fixed base.

[0013] Optionally, the rear subframe includes a wheel hub and a control arm assembly. The wheel hub of the rear subframe is connected to the inner wall of the side fixing plate. The control arm assembly of the rear subframe is connected to one end of the spring mounting sleeve.

[0014] Optionally, it further includes a detection component, which includes a TOF sensor, a controller, and an audible and visual alarm. The TOF sensor is installed on the inner wall of the mounting frame and directly above the rear subframe. The controller and the audible and visual alarm are installed on the outer wall of the mounting base. The controller is connected to the TOF sensor and the audible and visual alarm through wires, and the connection method is electrical connection.

[0015] In summary, the present utility model has at least one of the following beneficial effects:

[0016] 1. By setting the steel rope in the present utility model, the steel rope applies a pulling force, causing the steel rope to drive the first loading plate to be pulled to a suitable position, facilitating the simulation of half-load or full-load at the wheel core point of the rear subframe. According to the test requirements, only the first loading plate, the second loading plate, and the third loading plate need to be selectively applied with force to facilitate the lateral and longitudinal tests of the rear subframe. When testing the loading force on the third loading plate, the steel rope at the first loading plate needs to be disassembled to better perform the loading test on the third loading plate, thus solving the problem of inconvenient operation for the durability evaluation of the current test device for the rear subframe.

[0017] 2. By setting the detection component in the present utility model, the position detection of the rear subframe can be realized. The TOF sensor generates data based on the installation position and distance of the rear subframe. At the same time, the TOF sensor generates an electrical signal and conducts it to the controller through a wire. When the set numerical range is reached, the controller controls the audible and visual alarm to give an audible and visual alarm to remind the test personnel to adjust the installation position of the rear subframe in time to ensure that the installation position meets the test requirements, thereby improving the reliability of the test results.

[0018] 3. By setting limit holes on the opposite outer walls of the mounting base in the present utility model, when the device needs to be adjusted, only according to the requirements, the connecting block is installed on the outer wall of the mounting base through the limit holes. And there are multiple groups of limit holes to facilitate better adjustment and fixation of the position of the base for the installation test of the rear subframe. Its installation and adjustment method is simpler and more portable. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the mounting base of the present utility model;

[0021] Figure 3 It is a schematic side view structural diagram of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the second fixing component of the present utility model;

[0023] Figure 5 Schematic structural diagram of the TOF sensor of the present utility model;

[0024] In the figure: 1, test bench; 2, first fixing component; 201, bottom plate base; 202, triangular reinforcing plate; 203, mounting plate; 204, limiting plate; 205, limiting groove; 206, reinforcing rib; 3, mounting base; 4, second fixing component; 401, connecting block; 402, fixing base; 403, spring mounting sleeve; 404, shock absorber connecting plate; 405, fixing groove; 406, mounting cylinder; 5, mounting frame; 6, steel wire rope; 7, first loading plate; 8, side fixing plate; 9, second loading plate; 10, third loading plate; 11, rear subframe; 12, limiting hole; 13, detection component; 1301, TOF sensor; 1302, controller; 1303, sound and light alarm. Specific implementation mode

[0025] The following is a further detailed description of Figures 1-5 the present utility model.

[0026] The present utility model discloses a test fixing device for a rear subframe. Referring to Figure 1 , it includes a test bench 1. A first fixing component 2 is arranged on the base surface of the test bench 1. A mounting base 3 is installed on the outer wall of the test bench 1. A second fixing component 4 is installed on the inner wall of the mounting base 3. A mounting frame 5 is installed on the outer wall of the mounting base 3. A steel wire rope 6 is installed on the outer wall of the mounting frame 5. One end of the steel wire rope 6 is installed with a first loading plate 7. A side fixing plate 8 is installed on the side wall of the first loading plate 7. A second loading plate 9 is installed on the side wall of the side fixing plate 8. A third loading plate 10 is arranged at the bottom of the outer wall of the side fixing plate 8. A rear subframe 11 is installed on the inner wall of the third loading plate 10. Limiting holes 12 are opened on the opposite side walls of the mounting base 3. The second fixing component 4 is located on one side of the mounting base 3 and the first fixing component 2. The mounting base 3 is of an arc structure. Two groups of mounting frames 5 are provided and are respectively located on the opposite side walls of the mounting base 3. Multiple groups of limiting holes 12 are provided and are respectively located on the outer wall of the mounting base 3. Two groups of steel wire ropes 6 are provided and are respectively located on the outer wall of the mounting frame 5. Two groups of side fixing plates 8 are provided and are respectively located on the opposite sides of the mounting base 3.

[0027] In a further implementation mode, referring to Figure 1 , Figure 2 and Figure 3, there are two sets of the first fixing components 2, which are respectively located on the base surface of the test bench 1. The first fixing components 2 include bottom plate bases 201. There are two sets of bottom plate bases 201, which are respectively located on the base surface of the test bench 1. Triangular reinforcing plates 202 and mounting plates 203 are installed on the outer walls of the bottom plate bases 201. There are two sets of triangular reinforcing plates 202, which are respectively located on the outer walls of the bottom plate bases 201. A limiting plate 204 is installed on the outer wall of the mounting plate 203. The limiting plate 204 is inclined at a certain angle relative to the surface of the bottom plate base 201. A limiting groove 205 is opened on the outer wall of the limiting plate 204. A reinforcing rib 206 is installed on the side wall of the limiting plate 204. One end of the reinforcing rib 206 is connected to the side wall of the bottom plate base 201. The rear subframe 11 is connected to the inner wall of the limiting groove 205;

[0028] Specifically, under the action of the limiting plate 204 being inclined at a certain angle relative to the surface of the bottom plate base 201, it is convenient for the limiting plate 204 to better fix and install the rear subframe 11. And there are multiple sets of mounting holes 1 on the outer wall of the limiting plate 204, which are respectively located on the outer wall of the limiting plate 204. The mounting holes 1 can better install the rear subframe 11.

[0029] In a further embodiment, refer to Figures 1 to 4 , the second fixing component 4 includes connecting blocks 401. The connecting blocks 401 are installed on the side walls of the mounting base 3. There are multiple sets of connecting blocks 401, which are respectively located on the opposite side walls of the mounting base 3. One end of the connecting block 401 is installed with a fixed base 402. A spring mounting sleeve 403 is installed on the outer wall of the fixed base 402. One end of the spring mounting sleeve 403 is connected to the outer wall of the rear subframe 11. A shock absorber connecting plate 404 is installed on the side wall of the fixed base 402. There are two sets of shock absorber connecting plates 404, which are respectively located on the opposite side walls of the fixed base 402. A fixing groove 405 is opened on the outer wall of the shock absorber connecting plate 404. An installation cylinder 406 is installed on the outer wall of the fixed base 402;

[0030] Specifically, there are multiple sets of spring mounting sleeves 403, which are respectively located on the outer wall of the fixed base 402. The spring mounting sleeves 403 make the installation of the rear subframe 11 more stable. A fixing groove 405 is opened on the outer wall of the shock absorber connecting plate 404, so that the shock absorber connecting plate 404 better fits on the outer wall of the rear subframe 11 for fixation. There are multiple sets of mounting holes 2 on the outer wall of the shock absorber connecting plate 404, which are respectively located on the outer wall of the shock absorber connecting plate 404, so that the shock absorber is better installed on the outer wall of the shock absorber connecting plate 404 through the mounting holes 2.

[0031] In a further embodiment, refer to Figure 5, further including a detection component 13, the detection component 13 includes a TOF sensor 1301, a controller 1302 and an audible and visual alarm 1303. The TOF sensor 1301 is installed on the inner wall of the mounting bracket 5 and is located directly above the rear subframe 11. The controller 1302 and the audible and visual alarm 1303 are installed on the outer wall of the mounting base 3. The controller 1302 is connected to the TOF sensor 1301 and the audible and visual alarm 1303 through wires, and the connection method is electrical connection;

[0032] Specifically, the rear subframe 11 includes a wheel hub brake disc, a control arm assembly with bushings, a stabilizer bar, a stabilizer bar link, a steering knuckle, a brake caliper, a rear shock absorber assembly and a subframe. The wheel hub of the rear subframe 11 is connected to the inner wall of the side fixing plate 8. The control arm assembly of the rear subframe 11 is connected to one end of the spring mounting sleeve 403. The controller 1302 is connected to the TOF sensor 1301 and the audible and visual alarm 1303 through wires. Under the action of the controller 1302, the device is powered on.

[0033] When the utility model is in use, the rear subframe 11 is limited and fixed by the limiting groove 205 of the limiting plate 204 in the first fixing component 2. At the same time, multiple groups of spring mounting sleeves 403 are provided in the second fixing component 4. The springs in the rear subframe 11 are installed on the outer wall of the spring mounting sleeve 403. Then the rear subframe 11 is installed on the outer wall of the mounting cylinder 406 for fixation. Moreover, the fixing groove 405 of the shock absorber connecting plate 404 in the second fixing component 4 further fixes the rear subframe 11;

[0034] The loading plate two 9 on the outer wall of the side fixing plate 8 fixes the wheel hubs on both sides of the rear subframe 11. At the same time, one end of the steel rope 6 is connected to an external test device, and a tensile force is applied to the steel rope 6, so that the steel rope 6 drives the loading plate one 7 to a suitable position, facilitating the semi-loading or full-loading simulation of the wheel hub points of the rear subframe 11. According to the test requirements, only the loading plate one 7, the loading plate two 9 and the loading plate three 10 need to be selectively applied with force, so as to facilitate the lateral and longitudinal durability tests of the rear subframe 11. And when performing the loading force test on the loading plate three 10, the steel rope 6 at the loading plate one 7 needs to be disassembled to facilitate the better loading test at the loading plate three 10;

[0035] When the device needs to be adjusted, only according to the requirements, the connecting block 401 can be installed on the outer wall of the mounting base 3 through the limiting hole 12. And multiple groups of limiting holes 12 are provided, which can better adjust the position of the fixed base 402 for the installation test of the rear subframe 11, and the installation adjustment method is more simple and portable;

[0036] In the present utility model, the controller 1302 sets the numerical values of the parameter range. After the rear subframe 11 is installed, the TOF sensor 1301 generates data based on the installation position and distance of the rear subframe 11, and generates an electrical signal that is conducted to the controller 1302 through the parallel wire. When the set numerical range is reached, the controller 1302 controls the audible and visual alarm 1303 to give an audible and visual alarm, reminding the tester to adjust the installation position of the rear subframe 11 in a timely manner to ensure that the installation position meets the test requirements and improve the reliability of the test results.

[0037] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications to the above-mentioned technical content as equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of the present utility model.

Claims

1. A rear subframe test fixture, comprising a test bench (1), characterized in that: A first fixing assembly (2) is arranged on the base surface of the test bench (1); a mounting base (3) is installed on the outer wall of the test bench (1); a second fixing assembly (4) is installed on the inner wall of the mounting base (3); a mounting frame (5) is installed on the outer wall of the mounting base (3); a steel rope (6) is installed on the outer wall of the mounting frame (5); a loading plate 1 (7) is installed on one end of the steel rope (6); a side fixing plate (8) is installed on the side wall of the loading plate 1 (7); a loading plate 2 (9) is installed on the side wall of the side fixing plate (8); a loading plate 3 (10) is arranged at the bottom of the outer wall of the side fixing plate (8); a rear subframe (11) is installed on the inner wall of the loading plate 3 (10); and a limiting hole (12) is provided on the opposite side wall of the mounting base (3).

2. The rear subframe test fixture according to claim 1, characterized in that: The second fixing assembly (4) is located on one side of the mounting base (3); the mounting base (3) is an arc-shaped structure; the mounting frame (5) is provided in two groups and is respectively located on two opposite side walls of the mounting base (3); and the limiting holes (12) are provided in multiple groups and are respectively located on the outer wall of the mounting base (3).

3. The rear subframe test fixture according to claim 2, characterized in that: The first fixing assembly (2) is provided with two groups and is respectively located on the base surface of the test bench (1). The first fixing assembly (2) comprises a bottom plate base (201), the bottom plate base (201) is installed on the base surface of the test bench (1), a triangular reinforcing plate (202) and a mounting plate (203) are installed on the outer wall of the bottom plate base (201), a limiting plate (204) is installed on the outer wall of the mounting plate (203), a limiting groove (205) is provided on the outer wall of the limiting plate (204), a reinforcing rib (206) is installed on the side wall of the limiting plate (204), one end of the reinforcing rib (206) is connected to the side wall of the bottom plate base (201), and the inner wall of the limiting groove (205) is connected to the rear sub-frame (11).

4. The rear subframe test fixture according to claim 3, characterized in that: The triangular reinforcement plates (202) are provided in two groups and are respectively located on the outer wall of the bottom plate base (201); the limiting plates (204) are inclined at a certain angle relative to the surface of the bottom plate base (201).

5. The rear subframe test fixture according to claim 3, characterized in that: The steel ropes (6) are provided in two groups and are respectively located on the outer wall of the mounting frame (5); the side fixing plates (8) are provided in two groups and are respectively located on two opposite sides of the mounting base (3); and the bottom plate bases (201) are provided in two groups and are respectively located on the base surface of the test bench (1).

6. The rear subframe test fixture according to claim 3, characterized in that: The second fixing assembly (4) comprises a connecting block (401), wherein the connecting block (401) is mounted on the side wall of the mounting base (3), a fixing base (402) is mounted on one end of the connecting block (401), a spring mounting sleeve (403) is mounted on the outer wall of the fixing base (402), one end of the spring mounting sleeve (403) is connected to the outer wall of the rear sub-frame (11), a shock absorber connecting plate (404) is mounted on the side wall of the fixing base (402), a fixing groove (405) is formed on the outer wall of the shock absorber connecting plate (404), and a mounting cylinder (406) is mounted on the outer wall of the fixing base (402).

7. The rear subframe test fixture according to claim 6, characterized in that: The outer wall of the limit plate (204) is provided with a first mounting hole, and the first mounting hole is provided in multiple groups and is respectively located on the outer wall of the limit plate (204); the outer wall of the shock absorber connecting plate (404) is provided with a second mounting hole, and the second mounting hole is provided in multiple groups and is respectively located on the outer wall of the shock absorber connecting plate (404).

8. The rear subframe test fixture according to claim 6, characterized in that: The connecting blocks (401) are provided in multiple groups and are respectively located on two opposite side walls of the mounting base (3); the spring mounting sleeves (403) are provided in multiple groups and are respectively located on the outer wall of the fixed base (402); and the shock absorber connecting plates (404) are provided in two groups and are respectively located on two opposite side walls of the fixed base (402).

9. The rear subframe test fixture according to claim 6, characterized in that: The rear sub-frame (11) comprises a wheel core and a control arm assembly, the wheel core of the rear sub-frame (11) is connected to the inner wall of the side fixing plate (8), and the control arm assembly of the rear sub-frame (11) is connected to one end of the spring mounting sleeve (403).

10. The rear subframe test fixture according to claim 1, characterized in that: The vehicle further comprises a detection component (13), wherein the detection component (13) comprises a TOF sensor (1301), a controller (1302) and an audible and visual alarm (1303), wherein the TOF sensor (1301) is mounted on the inner wall of the mounting frame (5) and is located directly above the rear sub-frame (11), and the controller (1302) and the audible and visual alarm (1303) are mounted on the outer wall of the mounting base (3), and the controller (1302) is connected to the TOF sensor (1301) and the audible and visual alarm (1303) via a wire, and the connection method is electrical connection.

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