Flexible multi-channel test fixture for double-wishbone suspension structure

Abstract

The utility model provides a flexible multi-channel test fixture for a double-wishbone suspension structure. The flexible multi-channel test fixture comprises an adjusting cross beam assembly with various length specifications; the two sets of K plate assemblies are oppositely installed on the two sides of the inner wall faces of the frames on the two sides of the adjusting cross beam correspondingly. The two ends of one hoop sliding rail are connected with one side of the corresponding K plate assembly in a sliding mode respectively, and the two ends of the other hoop sliding rail are connected with the other side of the corresponding K plate assembly in a sliding mode respectively. The suspension front mounting fixture is mounted on the hoop slide rail; the suspension middle installation clamp is installed on the hoop sliding rail. The double-fork-arm installation assembly is installed on the adjusting cross beam assembly and located above the suspension middle installation clamp. The suspension rear installation clamp is installed on the K plate assembly. The structure basically covers all double-wishbone suspensions, and the universality is high; a vehicle body point and a suspension point are adjustable in X, Y and Z directions, and can be debugged for many times according to a field three-coordinate result.

Description

Technical Field

[0001] The utility model relates to the field of multi-channel road simulation tests, in particular to a flexible multi-channel test fixture for a double wishbone suspension structure. Background Art

[0002] The multi-channel road simulation test is a durability test that simulates the random road load spectrum of a real vehicle. It has the characteristics of high efficiency, high precision and good repeatability. It can greatly improve the efficiency of product development and is increasingly becoming an important means for OEMs to develop chassis and suspension.

[0003] In pursuit of driving comfort, more and more electric vehicles are using double wishbone suspension structures. Compared with the traditional McPherson suspension, the double wishbone suspension has a more complex structure and a higher upper limit for chassis tuning. When conducting multi-channel road simulation tests, the fixture design requirements are higher. The installation hard points of the suspension and body of each model are different.

[0004] The current multi-channel test fixture has the following shortcomings:

[0005] 1. The utilization rate of the fixture is low, and the design and manufacturing costs are high.

[0006] The test fixtures currently in use are designed and manufactured based on universal fixtures. The installation of subframes, shock absorbers and springs are all designed and manufactured according to the actual vehicle installation hard points. Different engineers have different design concepts, the proportion of universal fixtures is low, the design and manufacturing costs are high, and the efficiency is low.

[0007] 2. The vertical adjustment method is gear adjustment.

[0008] Figure 1 This is a fixture installation diagram in the prior art. Figure 2 for Figure 1 This is an enlarged view of part A. Figure 1 and Figure 2 As shown, the vertical adjustment of the subframe adopts the method of gear adjustment and clamp-assisted adjustment, and the design and adjustment of the vertical position are relatively complicated.

[0009] The design of the body mounting point fixture for multi-channel road simulation test is generally carried out in the order of the body coordinate system X direction from positive to negative (or from negative to positive), and the mounting fixture can be adjusted to the best in the three directions of X, Y, and Z. If it cannot be satisfied, it should be ensured that multiple directions can be adjusted as much as possible. Figure 1The fixture installation method shown, the spring fixed fixture (i.e., the first fixture 10), the body mounting point rear point fixture (i.e., the second fixture 20) are all fixed on the multi-channel universal fixture crossbeam by bolt fastening, and the position in the X and Y directions can be adjusted. However, the Z direction is guaranteed by the fixture and cannot be adjusted on site. Even if the processing error is found, it cannot be corrected and the fixture can only be remade, which affects the efficiency of the bench construction.

[0010] 3. Engineering changes are not supported.

[0011] Since the vertical position of the body mounting point is guaranteed by the size of the fixture, the position of the body is locked after the fixture is designed and manufactured. There is no means to adjust the vertical position. If the hard points of the body are changed, the corresponding fixture needs to be remade. There is a high probability of hard point mismatch in the early and mid-stage of vehicle development, which may lead to fixture waste and progress delays.

[0012] In view of this, the inventor of the present application designed a flexible multi-channel test fixture for a double wishbone suspension structure in order to overcome the above technical problems. Utility Model Content

[0013] The technical problem to be solved by the utility model is to overcome the defects of low utilization rate and high design and manufacturing cost of multi-channel test fixtures in the prior art, and to provide a flexible multi-channel test fixture for a double wishbone suspension structure.

[0014] The utility model solves the above technical problems through the following technical solutions:

[0015] A flexible multi-channel test fixture for a double wishbone suspension structure, characterized in that the flexible multi-channel test fixture comprises:

[0016] Adjustable crossbeam assembly with various length specifications;

[0017] Two groups of K-plate assemblies are respectively installed on both sides of the inner wall surface of the two side frames of the adjusting beam in a relative manner;

[0018] Two hoop slide rails, wherein the two ends of one of the hoop slide rails are respectively slidably connected to one side of the corresponding K-plate assembly, and the two ends of the other hoop slide rail are respectively slidably connected to the other side of the corresponding K-plate assembly;

[0019] At least one suspension front mounting fixture, wherein the suspension front mounting fixture is mounted on the hoop slide rail;

[0020] At least one suspension middle mounting fixture, wherein the suspension middle mounting fixture is mounted on the hoop slide rail;

[0021] at least one double wishbone mounting assembly mounted on the adjustment crossbeam assembly above the mid-mounting fixture of the suspension;

[0022] At least one suspension rear mounting fixture is mounted on the K-plate assembly.

[0023] According to an embodiment of the utility model, the adjusting crossbeam assembly includes two adjusting crossbeams, a left bracket and a right bracket, wherein the two ends of one of the adjusting crossbeams are slidably connected to one side of the left bracket and the right bracket respectively;

[0024] The two ends of the other adjusting cross beam are respectively slidably connected to the other side of the left bracket and the right bracket.

[0025] According to an embodiment of the utility model, a base is provided at the bottom of the left bracket and the right bracket, and a plurality of mutually spaced mounting grooves are provided on the base, and the bottom of the left bracket and the right bracket are installed in any one of the mounting grooves.

[0026] According to an embodiment of the utility model, each of the K-plate assemblies comprises a front K-plate and a rear K-plate, wherein the front K-plate is relatively mounted on one side of the inner wall surface of the left bracket and the right bracket respectively;

[0027] The rear K-plate is relatively mounted on the other side of the inner wall surface of the left bracket and the right bracket, respectively.

[0028] According to an embodiment of the utility model, a vehicle body front mounting point fixture is provided at the bottom of the suspension front mounting fixture.

[0029] According to an embodiment of the utility model, a vehicle body mid-mounting point fixture is provided at the bottom of the suspension mid-mounting fixture.

[0030] According to an embodiment of the utility model, a vehicle body rear mounting point fixture is provided at the bottom of the suspension rear mounting fixture.

[0031] According to one embodiment of the utility model, the double fork arm mounting assembly includes a double fork arm structure back plate, a shock absorber mounting fixture and a double fork arm mounting fixture, the double fork arm structure back plate is installed on the adjustment beam, and the shock absorber mounting fixture and the double fork arm mounting fixture are respectively fixed on the double fork arm structure back plate.

[0032] According to an embodiment of the utility model, the shock absorber mounting fixture is located above the double wishbone mounting fixture.

[0033] According to an embodiment of the utility model, a shock absorber top end clamp is provided on the shock absorber mounting clamp, and the double fork arm mounting clamp is in a concave shape.

[0034] The positive and progressive effects of the utility model are:

[0035] The utility model is a flexible multi-channel test fixture for a double wishbone suspension structure, which has the following advantages:

[0036] 1. Its structure basically covers all double wishbone suspensions and has strong versatility;

[0037] Second, the body points and suspension points are adjustable in three directions: X, Y, and Z, supporting engineering changes after the fixture is manufactured;

[0038] 3. Both the body points and suspension points can be adjusted in three directions: X, Y, and Z, and can be debugged multiple times based on the three-coordinate results on site;

[0039] Fourth, based on the fixture framework, only a few mounting surface fixtures need to be designed for later use, which greatly improves design efficiency and reduces manufacturing costs and cycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0041] Figure 1 This is a fixture installation diagram in the prior art.

[0042] Figure 2 for Figure 1 Enlarged view of part A.

[0043] Figure 3 It is a stereoscopic diagram of the flexible multi-channel test fixture for a double wishbone suspension structure of the utility model.

[0044] Figure 4 The utility model is a schematic diagram of installing an adjustable crossbeam assembly and a K-plate assembly in a flexible multi-channel test fixture for a double wishbone suspension structure.

[0045] Figure 5 for Figure 4 Schematic diagram of the structure of the middle K board assembly.

[0046] Figure 6 for Figure 4 Schematic diagram of the structure of the middle base.

[0047] Figure 7 The utility model is a structural schematic diagram of a double wishbone mounting assembly in a flexible multi-channel test fixture for a double wishbone suspension structure.

[0048] Figure 8The utility model is a structural schematic diagram of a vehicle body front mounting point fixture in a flexible multi-channel test fixture for a double wishbone suspension structure.

[0049] Fig. 9 The utility model is a structural schematic diagram of a mounting point fixture in a vehicle body in a flexible multi-channel test fixture for a double wishbone suspension structure.

[0050] Fig.10 The utility model is a structural schematic diagram of a vehicle body rear mounting point fixture in a flexible multi-channel test fixture for a double wishbone suspension structure.

[0051] Fig.11 The utility model is a flexible multi-channel test fixture for a double wishbone suspension structure, which is equipped with an assembly schematic diagram of a double wishbone front suspension.

[0052] Fig.12 for Figure 3 Schematic diagram of the top structure of part B.

[0053] Fig.13 for Figure 3 Schematic diagram of the side structure of part B.

[0054] [Reference Signs]

[0055] First clamp 10

[0056] Second fixture 20

[0057] Hoop slide rail 100

[0058] Suspension front mounting clamp 200

[0059] Suspension center mounting fixture 300

[0060] Suspension rear mounting clamp 400

[0061] Adjustment beam 500

[0062] Left bracket 510

[0063] Right bracket 520

[0064] Base 530

[0065] Mounting slot 531

[0066] Front K plate 600

[0067] Rear K plate 610

[0068] Body front mounting point clamp 210

[0069] Body mounting point fixture 310

[0070] Body rear mounting point clamp 410

[0071] Double wishbone back panel 700

[0072] Shock absorber mounting fixture 710

[0073] Double wishbone mounting clamp 720

[0074] Shock absorber top clamp 711

[0075] Double fork arm clamp 721 DETAILED DESCRIPTION

[0076] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0077] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the accompanying drawings.Where possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0078] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0079] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings contained in each term.

[0080] like Figures 1 to 11 As shown, the utility model discloses a flexible multi-channel test fixture for a double wishbone suspension structure, which includes: an adjusting crossbeam assembly, two sets of K-plate assemblies, two clamping slide rails 100, at least one suspension front mounting fixture 200, at least one suspension middle mounting fixture 300, at least one double wishbone mounting assembly, and at least one suspension rear mounting fixture 400.

[0081] The adjusting crossbeam assembly has various length specifications. The K-plate assembly is relatively mounted on both sides of the inner wall surface of the two side frames of the adjusting crossbeam.

[0082] The two ends of one of the clamp slide rails 100 are respectively slidably connected to one side of the corresponding K-plate assembly, and the two ends of the other clamp slide rail 100 are respectively slidably connected to the other side of the corresponding K-plate assembly.

[0083] The suspension front frame mounting fixture 200 is mounted on the clamping rail 100. The suspension middle mounting fixture 300 is mounted on the clamping rail 100. The double wishbone mounting assembly is mounted on the adjustment beam assembly, above the suspension middle mounting fixture 300. The suspension rear mounting fixture 400 is mounted on the K plate assembly.

[0084] Preferably, the adjusting beam assembly includes two adjusting beams 500, a left bracket 510 and a right bracket 520. The two ends of one adjusting beam 500 are respectively slidably connected to one side of the left bracket 510 and the right bracket 520. The two ends of the other adjusting beam 500 are respectively slidably connected to the other side of the left bracket 510 and the right bracket 520.

[0085] In addition, a base 530 is provided at the bottom of the left bracket 510 and the right bracket 520 . A plurality of mutually spaced mounting grooves 531 are provided on the base 530 . The bottom of the left bracket 510 and the right bracket 520 are installed in any one of the mounting grooves 531 .

[0086] Further preferably, each of the K-plate assemblies includes a front K-plate 600 and a rear K-plate 610, and the front K-plate 600 is relatively mounted on one side of the inner wall surface of the left bracket 510 and the right bracket 520, respectively. The rear K-plate 610 is relatively mounted on the other side of the inner wall surface of the left bracket 510 and the right bracket 520, respectively.

[0087] Furthermore, a vehicle body front mounting point fixture 210 is provided at the bottom of the suspension front mounting fixture 200. A vehicle body middle mounting point fixture 310 is provided at the bottom of the suspension middle mounting fixture 300. A vehicle body rear mounting point fixture 410 is provided at the bottom of the suspension rear mounting fixture 400.

[0088] Preferably, the double fork arm mounting assembly includes a double fork arm structure back plate 700, a shock absorber mounting fixture 710 and a double fork arm mounting fixture 720. The double fork arm structure back plate 700 is mounted on the adjustment crossbeam 500, and the shock absorber mounting fixture 710 and the double fork arm mounting fixture 720 are respectively fixed on the double fork arm structure back plate 700. The shock absorber mounting fixture 710 here can preferably be arranged to be located above the double fork arm mounting fixture 720.

[0089] The shock absorber mounting fixture 710 in this embodiment is provided with a shock absorber top fixture 711, and the double fork arm mounting fixture 720 is in a concave shape.

[0090] According to the above structural description, the utility model is used for a flexible multi-channel test fixture of a double wishbone suspension structure, wherein the adjustable crossbeam 500 in the adjustable crossbeam assembly has a variety of length specifications, for example, four length specifications, and a suitable crossbeam is selected according to different longitudinal lengths of the suspension. The four sizes basically cover the requirements of multi-channel tests of the front and rear suspensions of passenger cars. The bottom of the frame adopts a DAFA base to adapt the length of the crossbeam. The schematic diagram of the base is shown in FIG. Figure 6 shown.

[0091] The K-board assembly is divided into two parts, such as Figure 5 As shown, the front K-plate 600 and the rear K-plate 610 are designed with two heights, and when matched with the four beams of the adjustment beam assembly, eight combinations can be realized, which has strong versatility.

[0092] The suspension front frame mounting fixture 200, the suspension middle mounting fixture 300 and the suspension rear mounting fixture 400 are all body mounting point fixtures, which are used in combination with the adjustment beam assembly, the K-plate assembly and the clamp slide rail 100 to fix the body mounting point of the subframe. The two forks of the double fork arm mounting fixture 720 are designed as split parts, which are convenient for installation and adjustment, and prevent installation difficulties caused by excessive assembly errors. The shock absorber mounting fixture 710 is a point fixing fixture for the shock absorber, which can be fine-tuned according to different installation angles. The double fork arm structure back plate 700 is combined with the double fork arm mounting fixture 720, the shock absorber mounting fixture 710 and the clamp slide rail 100 to achieve the installation and adjustment of the suspension. After all parts are installed, as shown Fig.11 shown.

[0093] The convenience and versatility of this design are now explained by taking the fixture design of a certain car model's front suspension as an example:

[0094] According to the longitudinal distance of the suspension and the wheel center height, select the appropriate adjustment beam assembly and the K-plate assembly to build the basic frame, use one K-plate of the K-plate assembly as the longitudinal (X-direction) reference point of the suspension, and install the rear point fixing fixture. Fig.12 and Fig.13 As shown, U-shaped holes are provided on the top and sides to achieve vertical (Z direction) and lateral (Y direction) adjustments.

[0095] The suspension front frame mounting fixture 200 and the suspension middle mounting fixture 300 are fixed on the adjustment beam 500 of the adjustment beam assembly through the clamp slide rail 100, that is, the middle and front mounting points of the suspension are hung on the adjustment beam, and the Y-direction spacing is adjusted by moving the slide groove of the adjustment beam on the K-plate, and the Z-direction height is adjusted by sliding on the slide rail of the adjustment beam 500.

[0096] The X-direction displacement adjustment of the suspension front frame mounting fixture 200 and the suspension middle mounting fixture 300 is achieved by moving the clamp of the adjustment beam 500 on the adjustment beam 500. The clamp rail 100 and the double fork arm structure back plate 700 are installed on the adjustment beam 500 in combination, and the Y-direction distance is adjusted by sliding the adjustment beam 500, and the X-direction spacing is adjusted by sliding on the adjustment beam 500. The rail structure of the clamp rail 100 can achieve Z-direction height adjustment of the double fork arm structure back plate 700, so that the double fork arm mounting fixture 720 and the shock absorber mounting fixture 710 are installed on the double fork arm structure back plate 700, and the adjustment of the three directions of X, Y, and Z is also achieved.

[0097] It can be seen that in order to improve the utilization rate of the test fixture and improve the efficiency of the test bench assembly, the utility model has developed a flexible multi-channel test fixture for the double wishbone suspension structure. Through the investigation of the whole vehicle data, the flexible multi-channel test fixture can cover the double wishbone suspension of all passenger cars.

[0098] According to the actual investigation of multiple double wishbone suspensions, it was found that the distance between the front suspension body mounting point and the center plane in the Y direction is 418mm~462mm, and the distance between the front and rear body mounting points in the X direction is 695mm~792mm. This multi-channel test fixture has a wide adjustment range, with an adjustment range of 230mm~535mm in the Y direction and an adjustment range of 300mm~1100mm in the X direction. The flexible multi-channel test fixture described in this application can cover the double wishbone suspension of current passenger cars.

[0099] In summary, this set of structures has strong versatility for double wishbone suspensions. When engineering changes are made to the suspension design, there is no need to redesign the fixture. It only requires minor adjustments to part or the whole in a certain direction, which greatly improves the adjustability of the test bench during the assembly phase and improves test efficiency.

[0100] At the same time, the utility model can improve the efficiency of the multi-channel road simulation bench design stage. Based on the structure of this application, if it is used for other double wishbone suspensions, the changes required are: only the contact dimensions and corresponding thread specifications of the front, middle and rear three sets of body mounting points need to be changed, the double wishbone structure changes the top structure (topmount) bevel angle and the fork is installed on the universal back plate.

[0101] The technical solution of the utility model can shorten the fixture design cycle, improve design efficiency, reduce fixture manufacturing costs, and facilitate the progress of new product testing.

[0102] For example, Figures 7 to 10As shown, the front mounting point fixture 210, the middle mounting point fixture 310 and the rear mounting point fixture 410 are the front, middle and rear mounting point fixtures of the vehicle body respectively. A double fork arm fixture 721 is provided on the double fork arm mounting fixture 720, and a shock absorber top fixture 711 is provided at the top of the shock absorber mounting fixture 710. As described above, in the design of the new product test and development fixture, the thread specifications and contact surface design of the front mounting point fixture 210, the middle mounting point fixture 310 and the rear mounting point fixture 410 are changed, the inclination angle and crotch size of the double fork arm mounting fixture 720 and the hole position for installing the double fork arm bolts are changed, and the contact surface and spatial angle of the shock absorber mounting fixture 710 are partially changed. According to the new product structure, the new design scheme can be completed by changing the above five parts, thereby improving efficiency and reducing manufacturing costs.

[0103] The utility model is a flexible multi-channel test fixture for double wishbone suspension structure, which is mainly used for multi-channel road simulation test. It has strong versatility and can basically cover all the currently searchable double wishbone suspension structures. Its flexible design allows the entire fixture system to be applied to other double wishbone suspensions with only a few changes. Each installation hard point ensures the adjustability of the three directions of X, Y, and Z, supports later engineering changes, and can adjust and eliminate the bench hard point errors generated during the fixture manufacturing process.

[0104] In summary, the flexible multi-channel test fixture for a double wishbone suspension structure of the utility model has the following advantages:

[0105] 1. Its structure basically covers all double wishbone suspensions and has strong versatility;

[0106] Second, the body points and suspension points are adjustable in three directions: X, Y, and Z, supporting engineering changes after the fixture is manufactured;

[0107] 3. Both the body points and suspension points can be adjusted in three directions: X, Y, and Z, and can be debugged multiple times based on the three-coordinate results on site;

[0108] Fourth, based on the fixture framework, only a few mounting surface fixtures need to be designed for later use, which greatly improves design efficiency and reduces manufacturing costs and cycles.

[0109] For those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary implementation of the present application.

[0110] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0111] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus facilitate the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this application, multiple features are sometimes grouped into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those mentioned in the claims. In fact, the features of an embodiment are less than all the features of a single embodiment disclosed above.

[0112] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A flexible multi-channel test fixture for a double wishbone suspension structure, characterized in that: The flexible multi-channel test fixture comprises: Adjustable crossbeam assembly with various length specifications; Two groups of K-plate assemblies are respectively installed on both sides of the inner wall surface of the two side frames of the adjusting beam in a relative manner; Two hoop slide rails, wherein the two ends of one of the hoop slide rails are respectively slidably connected to one side of the corresponding K-plate assembly, and the two ends of the other hoop slide rail are respectively slidably connected to the other side of the corresponding K-plate assembly; At least one suspension front mounting fixture, wherein the suspension front mounting fixture is mounted on the hoop slide rail; At least one suspension middle mounting fixture, wherein the suspension middle mounting fixture is mounted on the hoop slide rail; at least one double wishbone mounting assembly mounted on the adjustment crossbeam assembly above the mid-mounting fixture of the suspension; At least one suspension rear mounting fixture is mounted on the K-plate assembly.

2. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 1, characterized in that: The adjusting crossbeam assembly comprises two adjusting crossbeams, a left bracket and a right bracket, wherein the two ends of one adjusting crossbeam are slidably connected to one side of the left bracket and the right bracket respectively; The two ends of the other adjusting cross beam are respectively slidably connected to the other side of the left bracket and the right bracket.

3. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 2, characterized in that: A base is disposed at the bottom of each of the left bracket and the right bracket. A plurality of mutually spaced mounting grooves are provided on the base. The bottom of the left bracket and the right bracket is mounted in any one of the mounting grooves.

4. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 2, characterized in that: Each of the K-plate assemblies comprises a front K-plate and a rear K-plate, wherein the front K-plate is relatively mounted on one side of the inner wall surface of the left bracket and the right bracket respectively; The rear K-plate is relatively mounted on the other side of the inner wall surface of the left bracket and the right bracket, respectively.

5. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 1, characterized in that: A vehicle body front mounting point fixture is arranged at the bottom of the suspension front mounting fixture.

6. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 1, characterized in that: A vehicle body mid-mounting point fixture is arranged at the bottom of the suspension mid-mounting fixture.

7. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 1, characterized in that: A vehicle body rear mounting point fixture is arranged at the bottom of the suspension rear mounting fixture.

8. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 1, characterized in that: The double fork arm mounting assembly includes a double fork arm structure back plate, a shock absorber mounting fixture and a double fork arm mounting fixture. The double fork arm structure back plate is mounted on the adjustment beam, and the shock absorber mounting fixture and the double fork arm mounting fixture are respectively fixed on the double fork arm structure back plate.

9. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 8, characterized in that: The shock absorber mounting fixture is located above the double wishbone mounting fixture.

10. The flexible multi-channel test fixture for a double wishbone suspension structure according to claim 8, characterized in that: The shock absorber mounting fixture is provided with a shock absorber top fixture, and the double fork arm mounting fixture is in a concave shape.

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