Power suspension test fixture

Abstract

The application discloses a power suspension test tool, which comprises a support plate, a fixed base tool installed on the support plate and adapted to be installed with a first suspension cushion, a movable base tool movably installed on the support plate and adapted to be installed with a second suspension cushion, a main tool connected between the first suspension cushion and the second suspension cushion, and an actuating cylinder adapted to apply a load to the main tool and / or the movable base tool to perform a load fatigue test on the first suspension cushion and the second suspension cushion. The first suspension cushion and the second suspension cushion are arranged opposite to each other in the lateral direction and the vertical direction, and the longitudinal positions of the first suspension cushion and the second suspension cushion are flush. The power suspension test tool has the advantages of simple structure, low cost, light weight and high stability.

Description

Technical Field

[0001] This invention relates to the field of vehicle testing technology, and in particular to a power suspension testing fixture. Background Technology

[0002] With the continuous upgrading of the truck industry, the trend of powertrain lightweighting is obvious. In order to obtain the actual load conditions of the powertrain so as to provide input for the structural optimization and weight reduction of the cylinder block and housing, and to provide test results for the development and verification of subsequent lightweight powertrains, the actual load test of the powertrain has become an important task.

[0003] The power mount testing fixtures in related technologies typically simulate the state of the power mount when it is installed on the vehicle frame, only sharing the same assembly environment as the complete vehicle. However, because these power mount testing fixtures are not matched to the complete vehicle environment, they are excessively heavy and occupy too much space. Moreover, when the vehicle is subjected to vertical loads, the center of gravity is too high, resulting in a tendency to tip over and poor test stability. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a power suspension testing fixture that has the advantages of simple structure, low cost, light weight, and high stability.

[0005] To achieve the above objectives, a power suspension test fixture according to an embodiment of the present invention includes: a support plate; a fixed base fixture mounted on the support plate, the fixed base fixture being adapted to mount a first suspension pad; a movable base fixture movably mounted on the support plate, the movable base fixture being adapted to mount a second suspension pad; a main fixture connected between the first suspension pad and the second suspension pad; and an actuating cylinder adapted to apply loads to the main fixture and / or the movable base fixture to perform load fatigue testing on the first suspension pad and the second suspension pad; wherein the first suspension pad and the second suspension pad are arranged opposite each other in both the transverse and vertical directions, and the longitudinal positions of the first suspension pad and the second suspension pad are flush.

[0006] The first and second suspension pads are mounted using a fixed base fixture and a movable base fixture, respectively. The first and second suspension pads are positioned opposite each other both horizontally and vertically, significantly reducing the distance between them and allowing for a smaller main fixture. The actuating cylinder can pass between the fixed and movable base fixtures without interference. Furthermore, the fixed and movable base fixtures only need to be connected between the first and second suspension pads, eliminating the need for a large fixture structure, resulting in a simpler, lower-cost, and lighter design. When under load, the force is applied precisely along the line connecting the first and second suspension pads, resulting in a lower center of gravity and greater stability.

[0007] Therefore, the power suspension testing fixture according to the embodiments of the present invention has the advantages of simple structure, low cost, light weight, and high stability.

[0008] According to some specific embodiments of the present invention, the actuating cylinder includes at least one of the following: a lateral actuating cylinder, the lateral actuating cylinder extending laterally and adapted to abut against the main tooling laterally; a longitudinal actuating cylinder, the longitudinal actuating cylinder extending longitudinally and adapted to abut against the main tooling longitudinally; and a vertical actuating cylinder, the vertical actuating cylinder extending vertically and abutting against the side of the movable base tooling away from the fixed base tooling.

[0009] Furthermore, both the transverse actuating cylinder and the longitudinal actuating cylinder are equipped with a connecting member, which abuts against the main tooling.

[0010] According to some specific embodiments of the present invention, the fixed base fixture includes: a first base plate, which is mounted on the support plate and parallel to the support plate; and a first side plate, which is perpendicular to the first base plate and extends longitudinally, and the first side plate is adapted to mount the first suspension pad.

[0011] The movable base fixture includes: a second base plate, which is laterally spaced from the first base plate, and the second base plate is parallel to the support plate and is laterally movable along the support plate; a second side plate, which is perpendicular to the second base plate and extends longitudinally, and is adapted to mount the second suspension pad; and a support side plate, which is perpendicular to the second base plate and the second side plate, and is adapted to support the vertical actuation cylinder.

[0012] Furthermore, the first side plate and the second side plate are spaced apart laterally, and the second suspension pad is connected to the side of the second side plate facing the supporting side plate. The first suspension pad, the second suspension pad and the main tooling are all located laterally between the first side plate and the second side plate.

[0013] According to some specific embodiments of the present invention, the top surface of the support plate is provided with a vertically extending groove, and the bottom surface of the second base plate is provided with a slider, the slider extending into the groove and sliding along the groove.

[0014] Furthermore, a retaining edge is constructed at the opening of the groove, and the retaining edge stops the slider on the side facing outward from the groove.

[0015] According to some specific embodiments of the present invention, the main tooling includes: a central connecting portion located between the fixed base tooling and the movable base tooling, the side of the central connecting portion being adapted to support the transverse actuating cylinder, and the top surface of the central connecting portion being adapted to support the longitudinal actuating cylinder; a first connecting arm extending toward the fixed base tooling and connected to the first suspension pad; and a second connecting arm movably connected to the second suspension pad.

[0016] Furthermore, the first connecting arm and the second connecting arm are symmetrical with respect to the central connecting portion.

[0017] Furthermore, the first connecting arm extends laterally in a direction away from the first mounting plate; the second connecting arm extends laterally in a direction away from the second mounting plate.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of a power suspension testing fixture in the prior art;

[0021] Figure 2 This is a schematic diagram of the structure of the power suspension test fixture according to an embodiment of the present invention;

[0022] Figure 3 This is a partial schematic diagram of the power suspension testing fixture according to an embodiment of the present invention;

[0023] Figure 4 This is a top view of the power suspension testing fixture according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the main fixture of the power suspension test fixture according to an embodiment of the present invention, connecting the first suspension pad and the second suspension pad;

[0025] Figure 6 This is a schematic diagram of the main fixture of the power suspension test fixture according to an embodiment of the present invention;

[0026] Figure 7 This is an assembly diagram of the power suspension test fixture according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the direction of the second suspension pad of the power suspension test fixture according to an embodiment of the present invention.

[0028] Figure label:

[0029] Existing technology:

[0030] 1' dynamic suspension test fixture, 10' suspension pads, 100' longitudinal beam simulation fixture.

[0031] The power suspension simulation fixture is 200' long, and the actuator cylinder is 500' long.

[0032] This invention:

[0033] Power suspension test fixture 1, support plate 100, fixed base fixture 200, first suspension pad 10.

[0034] Movable base fixture 300, second suspension pad 20, main fixture 400, actuating cylinder 500.

[0035] Lateral actuating cylinder 501, longitudinal actuating cylinder 502, vertical actuating cylinder 503, adapter 510.

[0036] First base plate 210, first side plate 220, second base plate 310, second side plate 320, supporting side plate 330.

[0037] Slide 110, slider 311, stop 111, center connecting part 410, first connecting arm 420, second connecting arm 430. Detailed Implementation

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0040] In the description of this invention, "a plurality of" means two or more.

[0041] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0042] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0043] First, let me briefly introduce the existing power suspension testing fixture 1'.

[0044] like Figure 1 As shown, in the prior art, the power mount test fixture 1' simulates the left and right longitudinal beams of the vehicle frame through the longitudinal beam simulation fixtures 100' on both sides, and simulates the powertrain through the power mount simulation fixture 200' in the middle. The longitudinal beam simulation fixtures 100' and the power mount simulation fixture 200' are assembled with the suspension pads 10' on both sides, and the actuating cylinder 500' applies loads to the powertrain simulation fixture and the longitudinal beam simulation fixture 100', thereby performing load fatigue tests on the suspension pads 10' on both sides.

[0045] Although the aforementioned power mount test fixture 1' can be used to perform load fatigue testing, the longitudinal beam simulation fixture 100' and the power mount simulation fixture 200' are roughly the same size as the longitudinal beam and powertrain in the actual vehicle. The power mount test fixture 1' is large and heavy, making it too cumbersome and requiring a high cost.

[0046] Furthermore, this application is based on the inventor's discovery and understanding of the following facts and problems: During the use of the power suspension test fixture 1' in the prior art, since the power suspension simulation fixture 200' which is to simulate the powertrain is located between the longitudinal beam simulation fixtures 100' on both sides, the space for the actuator cylinder 500 to apply lateral load is occupied by the longitudinal beam simulation fixtures 100' on both sides, which necessitates raising the power suspension simulation fixture 200', resulting in an unstable center of gravity for the power suspension simulation fixture 200', a tendency to overturn, and poor test results.

[0047] To this end, the inventors propose a power suspension test fixture 1 according to an embodiment of the present invention.

[0048] The power suspension test fixture 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0049] like Figures 1-8 As shown, the power suspension test fixture 1 according to an embodiment of the present invention includes: a support plate 100, a fixed base fixture 200, a movable base fixture 300, a main fixture 400, and an actuating cylinder 500.

[0050] The fixed base fixture 200 is installed on the support plate 100, and the fixed base fixture 200 is suitable for installing the first suspension pad 10.

[0051] A movable base fixture 300 is movably mounted on a support plate 100, and the movable base fixture 300 is adapted to mount a second suspension pad 20. A main fixture 400 is connected between the first suspension pad 10 and the second suspension pad 20. An actuating cylinder 500 is adapted to apply loads to the main fixture 400 and / or the movable base fixture 300 to perform load fatigue testing on the first suspension pad 10 and the second suspension pad 20.

[0052] The first suspension pad 10 and the second suspension pad 20 are arranged opposite each other in both the lateral and vertical directions, and their longitudinal positions are aligned. The aforementioned lateral direction simulates the extension direction of the vehicle's crossbeam when the first suspension pad 10 and the second suspension pad 20 are assembled. Figure 2 The extension direction of the Y-axis; the aforementioned longitudinal direction is the extension direction of the vehicle longitudinal beam when simulating the assembly of the first suspension pad 10 and the second suspension pad 20, that is, as shown in the figure. Figure 2 The X-axis extends in the direction mentioned above; the vertical direction simulates the height direction when the first suspension pad 10 and the second suspension pad 20 are assembled, i.e., as shown in the figure. Figure 2 The direction of extension of the Z-axis in the diagram.

[0053] For example, the support plate 100 extends horizontally and is located at the bottom of the entire power suspension test fixture 1, providing support. The fixed base fixture 200 is fixedly installed with the support plate 100, and the movable base fixture 300 can move along the path defined by the support plate 100. Figure 7 As shown, the first suspension pad 10 and the second suspension pad 20 are rotated by 90° and installed with the fixed base fixture 200 and the movable base fixture 300, respectively, compared to the prior art power suspension test fixture. Figure 4 As shown, the top surfaces of the first suspension pad 10 and the second suspension pad 20 have changed from facing upwards to facing each other. Only a small-volume main fixture 400 is needed between the first suspension pad 10 and the second suspension pad 20 to meet the testing requirements, significantly reducing the distance between them.

[0054] The connection position between the main fixture 400 and the first suspension pad 10 simulates the force exerted by the powertrain on the first suspension pad 10 during actual use. The connection position between the main fixture 400 and the second suspension pad 20 simulates the force exerted by the powertrain on the second suspension pad 20 during actual use. The connection positions between the first suspension pad 10 and the fixed base fixture 200, and between the second suspension pad 20 and the movable base fixture 300, simulate the force exerted by the first suspension pad 10, the second suspension pad 20, and the left and right longitudinal beams during actual use.

[0055] According to an embodiment of the present invention, the power suspension test fixture 1 uses a fixed base fixture 200 and a movable base fixture 300 to respectively mount a first suspension pad 10 and a second suspension pad 20. The first suspension pad 10 and the second suspension pad 20 are arranged opposite each other in both the horizontal (Y-axis) and vertical (Z-axis) directions, significantly shortening the distance between the first suspension pad 10 and the second suspension pad 20, allowing for a smaller main fixture 400. The actuating cylinder 500 can pass between the fixed base fixture 200 and the movable base fixture 300, avoiding interference. Furthermore, the fixed base fixture 200 and the movable base fixture 300 only need to be connected between the first suspension pad 10 and the second suspension pad 20, eliminating the need for a large fixture structure, resulting in a simpler structure, lower cost, and lighter weight. When subjected to load, the force is located precisely on the connection line between the first suspension pad 10 and the second suspension pad 20, resulting in a lower center of gravity and higher stability.

[0056] Understandably, when the dynamometer 500 applies a lateral (Y-axis) load and a vertical (Z-axis) load, one of the first suspension pad 10 and the second suspension pad 20 is subjected to tension and the other to compression, which is the same as the stress condition under actual vehicle operation. Furthermore, when the dynamometer 500 is subjected to loads and axial (X-axis) loads, the first suspension pad 10 and the second suspension pad 20 are simultaneously stretched or compressed, simulating the stress state during braking and acceleration, thus meeting the load fatigue test requirements that closely approximate actual operating conditions.

[0057] Therefore, the power suspension test fixture 1 according to the embodiment of the present invention has the advantages of simple structure, low cost, light weight and high stability.

[0058] In addition, the actuating cylinder 500 is equipped with force sensors and displacement sensors, which can measure the tensile and compressive stiffness of the first suspension pad 10 and the second suspension pad 20. The loading force and frequency of the actuating cylinder 500 can also be adjusted according to the test requirements.

[0059] In some specific embodiments of the present invention, such as Figure 1As shown, the actuating cylinder 500 includes at least one of a lateral actuating cylinder 501, a longitudinal actuating cylinder 502, and a vertical actuating cylinder 503. The lateral actuating cylinder 501 extends laterally and is adapted to abut against the main tooling 400 laterally. The longitudinal actuating cylinder 502 extends longitudinally and is adapted to abut against the main tooling 400 longitudinally. The vertical actuating cylinder 503 extends vertically and abuts against the side of the movable base tooling 300 away from the fixed base tooling 200.

[0060] like Figure 2 As shown, it can be understood that the lateral actuation cylinder 501 extends along the Y-axis and applies a load to the main fixture 400 in the Y-axis direction. The vertical actuation cylinder 503 extends along the Z-axis and applies a load to the movable base fixture 300 in the Z-axis direction. The longitudinal actuation cylinder 502 extends along the X-axis and applies a load to the fixture in the X-axis direction. Thus, the lateral actuation cylinder 501, the longitudinal actuation cylinder 502, and the vertical actuation cylinder 503 apply simulated loads in three mutually perpendicular directions, satisfying the fatigue test requirements of the first suspension pad 10 and the second suspension pad 20. Based on this, the X-axis direction, the Y-axis direction, and the Z-axis direction can be compounded with different phases. For braking and high-speed fixtures, different actuation cylinders have a certain phase difference. In the steering condition, the lateral actuation cylinder 501, the longitudinal actuation cylinder 502, and the vertical actuation cylinder 503 jointly apply the load. Ultimately, the force on the first suspension pad 10 and the second suspension pad 20 is made close to the force under actual use conditions to complete the fatigue test.

[0061] Furthermore, such as Figure 2 As shown, both the transverse actuating cylinder 501 and the longitudinal actuating cylinder 502 are equipped with a conversion component 510, which abuts against the main tooling 400.

[0062] For example, the conversion element 510 between the transverse actuating cylinder 501 and the longitudinal actuating cylinder 502 is bolted to the top and side surfaces of the main tooling 400. The main tooling 400 is relatively small; by connecting it via the conversion element 510, the transverse actuating cylinder 501 and the longitudinal actuating cylinder 502 have a closer contact surface with the main tooling 400. This allows the loads applied by the transverse and longitudinal actuating cylinders to be transmitted to the main tooling 400 more accurately, improving stress stability. Meanwhile, the movable base tooling 300 has a large support surface area, allowing the vertical actuating cylinder 503 to directly abut against the movable base tooling 300, maintaining good stability.

[0063] In some specific embodiments of the present invention, such as Figure 3 As shown, the fixed base fixture 200 includes a first base plate 210 and a first side plate 220.

[0064] The first base plate 210 is mounted on the support plate 100 and is parallel to the support plate 100. The first side plate 220 is perpendicular to the first base plate 210 and extends longitudinally. The first side plate 220 is adapted to mount the first suspension pad 10. In addition, the fixed base fixture 200 may also be constructed with a connecting plate perpendicular to the first base plate 210 and the first side plate 220.

[0065] The movable base fixture 300 includes a second base plate 310, a second side plate 320, and a supporting side plate 330. The second base plate 310 and the first base plate 210 are spaced apart laterally. The second base plate 310 is parallel to the support plate 100 and is laterally movable along the support plate 100. The second side plate 320 is perpendicular to the second base plate 310 and extends longitudinally. The second side plate 320 is adapted to mount the second suspension pad 20. The supporting side plate 330 is perpendicular to the second base plate 310 and the second side plate 320. The supporting side plate 330 is adapted to support the vertical actuation cylinder 503.

[0066] Furthermore, such as Figures 2-4 As shown, the first side plate 220 and the second side plate 320 are spaced apart laterally, and the second suspension pad 20 is connected to the side of the second side plate 320 facing the supporting side plate 330. The first suspension pad 10, the second suspension pad 20 and the main tooling 400 are all located between the first side plate 220 and the second side plate 320 laterally.

[0067] For example, the fixed base fixture 200 and the movable base have the same shape and are centrally symmetrical. The first side plate 220 and the second side plate 320 are parallel. The first side plate 220 and the second side plate 320 simulate the left and right longitudinal beams of the frame, which are respectively connected to the first suspension pad 10 and the second suspension pad 20. Compared with the longitudinal beam simulation fixture 100' in the prior art, the fixed base fixture 200 and the movable base fixture 300 are kept in the same lateral (Y-axis direction) position, without occupying lateral (Y-axis direction) space. Furthermore, the supporting side plate 330 can adapt to the force direction of the vertical actuation cylinder 503. The force-bearing position of the supporting plate 100 is on the same axis as the elastic center of the first suspension pad 10 and the second suspension pad 20 along the Z-axis, maintaining good force stability and ensuring that no swaying occurs.

[0068] In some specific embodiments of the present invention, such as Figure 4 and Figure 7 As shown, the top surface of the support plate 100 is constructed with a vertically extending groove 110, and the bottom surface of the second base plate 310 is constructed with a slider 311, which extends into the groove 110 and can slide along the groove 110.

[0069] A slide groove 110 is constructed through the support plate 100 to define the movement path of the movable base fixture 300. The extension direction of the slide groove 110 is parallel to the extension direction of the vertical actuation cylinder 503. After the vertical actuation cylinder 503 applies a load to the movable base fixture 300, the movable base fixture 300 slides through the sliding groove 110 via the slider 311. The movable base fixture 300 is subjected to force in the vertical direction (Z-axis direction) through the slider 311 and generates a tendency to move, simulating the vertical force when a vehicle is moving. The slider 311 is accommodated in the slide groove 110 to limit its position. The movable base fixture 300 maintains its position relative to the support plate 100 and the fixed base fixture 200 in both the longitudinal (X-axis direction) and transverse (Y-axis direction), improving the stability of the load fatigue test process.

[0070] Furthermore, such as Figure 7 As shown, a retaining edge 111 is constructed at the opening of the slide groove 110, and the retaining edge 111 stops the slider 311 on the side facing outward from the slide groove 110.

[0071] A retaining edge 111 is constructed through a slide groove 110. The cross-section of the slide groove 110 is constructed in a "T" shape, and the cross-section of the slider 311 is also constructed in a "T" shape to match the slide groove 110. The retaining edge 111 stops on the outside of the slider 311, ensuring that the movable base fixture 300 will not detach from the support plate 100. In addition, lubricating oil can be stored in the slide groove 110 to reduce the sliding resistance between the movable base fixture 300 and the support plate 100.

[0072] In some specific embodiments of the present invention, such as Figure 4 As shown, the main tooling 400 includes: a central connecting part 410, a first connecting arm 420, and a second connecting arm 430.

[0073] The central connecting portion 410 is located between the fixed base fixture 200 and the movable base fixture 300. The side of the central connecting portion 410 is adapted to support the transverse actuating cylinder 501, and the top surface of the central connecting portion 410 is adapted to support the longitudinal actuating cylinder 502. The first connecting arm 420 extends toward the fixed base fixture 200 and is connected to the first suspension pad 10. The second connecting arm 430 is movably connected to the second suspension pad 20.

[0074] Furthermore, such as Figure 4 As shown, the first connecting arm 420 and the second connecting arm 430 are symmetrical about the center connecting portion 410.

[0075] Furthermore, the first connecting arm 420 extends laterally at an angle away from the first mounting plate. The second connecting arm 430 extends laterally at an angle away from the second mounting plate.

[0076] For example, such as Figures 4-6As shown, the main tooling 400 forms an "S" shape. The first suspension pad 10 and the main tooling 400 are positioned laterally away from the first side plate 220, while the second suspension pad 20 and the main tooling 400 are positioned laterally away from the second side plate 320. The first connecting arm 420 and the second connecting arm 430 are symmetrical with respect to the central connecting portion 410, thus satisfying the requirement for applying loads laterally (Y-axis direction). The first suspension pad 10 and the second suspension pad 20 maintain the same axis at their elastic centers in the longitudinal direction (Z-axis direction), ensuring that no sway occurs when loads are applied in the longitudinal direction (Z-axis direction).

[0077] Other configurations and operations of the power suspension testing fixture 1 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0078] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0079] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A power suspension testing fixture, characterized in that, include: Support plate; A fixed base fixture is mounted on the support plate and is adapted to install a first suspension pad. A movable base fixture is movably mounted on the support plate, and the movable base fixture is adapted to install a second suspension pad; The main tooling is connected between the first suspension pad and the second suspension pad; An actuating cylinder, the actuating cylinder being adapted to apply a load to the main tooling and / or the movable base tooling, so as to perform a load fatigue test on the first suspension pad and the second suspension pad; The first suspension pad and the second suspension pad are arranged opposite each other in both the horizontal and vertical directions, and the vertical positions of the first suspension pad and the second suspension pad are aligned. The lateral direction is the extension direction of the vehicle crossbeam when the first and second suspension pads are assembled. The longitudinal direction is the extension direction of the vehicle longitudinal beam when the first and second suspension pads are assembled. The vertical direction is the simulated height direction when the first suspension pad and the second suspension pad are assembled.

2. The power suspension testing fixture according to claim 1, characterized in that, The actuating cylinder includes at least one of the following: A transverse actuating cylinder, the transverse actuating cylinder extending laterally and adapted to abut against the main tooling laterally; A longitudinally actuating cylinder, the longitudinally actuating cylinder extending longitudinally and adapted to abut against the main tooling in the longitudinal direction; A vertically actuating cylinder extends vertically and abuts against the side of the movable base fixture away from the fixed base fixture.

3. The power suspension testing fixture according to claim 2, characterized in that, Both the transverse actuating cylinder and the longitudinal actuating cylinder are equipped with a connecting member, which abuts against the main tooling.

4. The power suspension testing fixture according to claim 2, characterized in that, The fixed base fixture includes: A first base plate, which is mounted on the support plate and is parallel to the support plate; A first side plate, the first side plate being perpendicular to the first bottom plate and extending longitudinally, the first side plate being adapted to mount the first suspension pad; The movable base fixture includes: The second base plate is vertically spaced from the first base plate, and the second base plate is parallel to the support plate and vertically movable along the support plate; The second side plate is perpendicular to the second bottom plate and extends longitudinally, and the second side plate is adapted to install the second suspension pad; A support side plate is provided, which is perpendicular to the second base plate and the second side plate, and is adapted to support the vertical actuation cylinder.

5. The power suspension testing fixture according to claim 4, characterized in that, The first side plate and the second side plate are spaced apart laterally, and the second suspension pad is connected to the side of the second side plate facing the supporting side plate. The first suspension pad, the second suspension pad and the main tooling are all located laterally between the first side plate and the second side plate.

6. The power suspension testing fixture according to claim 4, characterized in that, The top surface of the support plate is provided with a vertically extending groove, and the bottom surface of the second base plate is provided with a slider that extends into the groove and can slide along the groove.

7. The power suspension testing fixture according to claim 6, characterized in that, A retaining edge is constructed at the opening of the slide groove, and the retaining edge stops the slider on the side facing outward from the slide groove.

8. The power suspension testing fixture according to claim 4, characterized in that, The main tooling includes: A central connecting part is located between the fixed base fixture and the movable base fixture. The side of the central connecting part is adapted to support the transverse actuating cylinder, and the top surface of the central connecting part is adapted to support the longitudinal actuating cylinder. A first connecting arm extends toward the fixed base fixture and is connected to the first suspension pad. The second connecting arm extends toward the movable base fixture and is connected to the second suspension pad.

9. The power suspension testing fixture according to claim 8, characterized in that, The first connecting arm and the second connecting arm are symmetrical with respect to the central connecting portion.

10. The power suspension testing fixture according to claim 9, characterized in that, The first connecting arm extends laterally in a direction away from the first side plate; the second connecting arm extends laterally in a direction away from the second side plate.

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