Mobile platform and sliding table test equipment

Abstract

The present invention relates to a mobile platform and a sliding table test device, comprising a support platform, a first connecting component and a second connecting component; the first connecting component and the second connecting component are arranged on the support platform at a front-to-back interval; the first connecting component and the second connecting component are respectively used to connect the front and rear sides of a target object; the support platform can move left and right to approach or move away from a collision device, wherein when the support platform approaches the collision device, the target object can collide with the collision device. In the present invention, the mobile platform can drive the door assembly to move so that it collides with the collision device fixed on the ground, and its implementation method is the same as that of the whole vehicle side column collision test, so that the deformation of the door assembly in the whole vehicle side column collision test can be more accurately simulated. In addition, the first connecting component and the second connecting component are respectively connected to the front and rear sides of the door assembly, which can more accurately simulate the whole vehicle environment and improve the test effect.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile safety testing, and in particular relates to a mobile platform and a sliding table testing device. Background Art

[0002] With the rapid development of the automobile industry, the number of cars is increasing, and various traffic accidents are still frequent, among which side pole collision is one of the common accidents. At present, various countries and regions around the world have clear requirements for the safety of automobile side pole collision and have incorporated them into collision safety regulations. Among them, C-NCAP in 2018 also added a side pole collision test. In 2021, C-NCAP replaced the original deformable moving barrier side collision test with a side pole collision test for new energy vehicles.

[0003] Among them, the side pole collision test can be carried out with the whole vehicle. During the test, the car is usually collided with a collision device such as a rigid pole fixed on the ground at a certain speed. Since the real vehicle side pole collision test takes a lot of time and money, and the side pole collision simulation test that can reproduce the whole vehicle test process has the advantages of low cost, good repeatability, and short time, the whole vehicle side pole collision test is usually replaced by the side pole collision simulation test.

[0004] However, the existing side column collision simulation test usually fixes the car door on the corresponding platform, and then drives the rigid column to move through the slide to hit the car door, thereby simulating the collision experiment. The implementation method is opposite to the whole vehicle side column collision test, and it is difficult to accurately simulate the door deformation and dummy injury value in the whole vehicle side column collision test. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to provide a mobile platform and a sliding table test device in view of the problem that it is difficult to accurately simulate the door deformation and dummy injury value in the vehicle side column collision test in the existing side column collision simulation test.

[0006] In order to solve the above problems, on the one hand, an embodiment of the present invention provides a mobile platform, including a support platform, a first connecting component and a second connecting component; the first connecting component and the second connecting component are arranged on the support platform with a front-to-back interval; the first connecting component is used to connect the front side of the target object, and the second connecting component is used to connect the rear side of the target object respectively; the support platform can move left and right to approach or move away from a collision device; when the support platform approaches the collision device, it can make the target object placed on the support platform collide with the collision device.

[0007] Optionally, the first connecting component is used to be rotationally connected to the target object so that the target object can rotate relative to the support platform when colliding with the collision device; wherein, the axis of rotation of the target object relative to the support platform is parallel to the vertical direction, and when the target object rotates relative to the support platform, the first connecting component can provide a damping force to the target object.

[0008] Optionally, the first connecting component includes a support column and a damper; the support column is fixed on the support platform; the rear end of the damper is fixedly connected to the support column, and the front end of the damper is used for rotational connection with the target object; wherein the damper can elastically extend and retract along the front-to-back direction.

[0009] Optionally, the second connecting component is used to be rotationally connected to the target object so that the target object can rotate relative to the support platform when colliding with the collision device; wherein, the axis of rotation of the target object relative to the support platform is parallel to the vertical direction, and when the target object rotates relative to the support platform, the second connecting component can provide a damping force to the target object.

[0010] Optionally, the second connecting component includes a rotating shaft, a connecting column and a blocking member; the rotating shaft is rotatably connected to the support platform, and the axis of rotation of the rotating shaft relative to the support platform is parallel to the vertical direction; the connecting column is connected to the rotating shaft, and the front end of the connecting column is used to connect with the target object; the blocking member is installed on the support platform, and when the target object collides with the collision device, the front end of the connecting column rotates toward the side away from the collision device to squeeze the blocking member.

[0011] Optionally, the mobile platform further includes a rolling assembly, which is mounted on the support platform so as to separate the support platform from the ground; when the support platform moves in the left and right directions, the rolling assembly can contact the ground in a rolling friction manner.

[0012] Optionally, the rolling assembly includes a swing arm, a roller and an elastic member; the swing arm is rotatably connected to the support platform, wherein the axis of rotation of the swing arm relative to the support platform is parallel to the left-right direction; the roller is rotatably connected to the swing arm, and the axis of rotation of the roller relative to the swing arm is parallel to the front-back direction; the elastic member is compressed between the swing arm and the support platform so that the roller is subjected to downward pressure.

[0013] Optionally, the mobile platform also includes a guide assembly, which includes a first guide structure and a second guide structure, the first guide structure is connected to the support platform, and the second guide structure is arranged on the ground; the first guide structure and the second guide structure cooperate to guide the movement of the support platform in the left and right directions.

[0014] In order to solve the above problems, on the other hand, an embodiment of the present invention provides a sliding table test device, including a collision device and the above-mentioned moving platform.

[0015] Optionally, the sliding table test device also includes a buffer device, which is installed on the collision device and / or the mobile platform; when the support platform is close to the collision device, the buffer device can be compressed between the support platform and the collision device to prevent the support platform and the collision device from rigidly colliding.

[0016] In the mobile platform and sliding table test device provided in the embodiment of the present invention, the mobile platform can drive the door assembly to move so that it collides with the collision device fixed on the ground. The implementation method is the same as that of the vehicle side column collision test, thereby more accurately simulating the deformation of the door assembly in the vehicle side column collision test.

[0017] In addition, in the whole vehicle, the front and rear sides of the door assembly are connected to the corresponding parts of the vehicle body, while in the present solution, the first connecting assembly and the second connecting assembly are respectively connected to the front and rear sides of the door assembly, thereby more accurately simulating the whole vehicle environment and improving the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the sliding table test device provided by one embodiment of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure of the sliding table test device provided by one embodiment of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 It is a structural schematic diagram of a mobile platform of a sliding table test device provided in one embodiment of the present invention;

[0021] Figure 4 is a schematic structural diagram of a connection between a mobile platform and a target object provided by an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of a partial structure of the bottom of a mobile platform provided by an embodiment of the present invention;

[0023] Figure 6 is a schematic diagram of a rigid column of a collision device of a sliding table test device provided by an embodiment of the present invention;

[0024] Figure 7 It is a partial schematic diagram of a collision device of a sliding table test device provided by an embodiment of the present invention.

[0025] The reference numerals in the specification are as follows:

[0026] 100. Sliding table test device;

[0027] 10. Mobile platform;

[0028] 1. Support platform; 11. Lower frame; 12. Upper frame; 13. Left frame; 14. Right frame;

[0029] 2. First connecting assembly; 21. Support column; 22. Damper;

[0030] 3. Second connecting assembly; 31. Rotating shaft; 32. Connecting column; 33. Blocking member;

[0031] 4. rolling assembly; 41. swing arm; 42. roller; 43. limiter;

[0032] 5. Guide assembly; 51. First guide structure; 52. Second guide structure;

[0033] 6. Seat connection seat;

[0034] 7. Protective net;

[0035] 20. collision device; 201. fixing seat; 202. rigid column; 203. slot; 204. column; 205. fixing frame; 206. mounting plate;

[0036] 30. Buffer device; 301. First buffer assembly; 302. Second buffer assembly; 303. Bottom plate; 304. Base; 305. Cover plate; 306. Energy absorbing tube;

[0037] 40. Traction chain;

[0038] 200, door assembly; 20a, front door; 20b, B-pillar. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] like Figure 1 and Figure 2As shown, in one embodiment, the sliding table test device 100 includes a mobile platform 10 and a collision device 20, wherein the collision device 20 is installed on the ground, and the mobile platform 10 is used to place a target object and drive the target object to move toward the collision device 20, so that the target object placed on the mobile platform 10 collides with the collision device 20. The side column collision simulation test is performed by the sliding table test device 100, and the target object can be a door assembly 200 of a car (refer to Figure 3 ).

[0041] In this embodiment, the mobile platform 10 can drive the door assembly 200 to move and cause it to collide with the collision device 20. The implementation method is the same as the vehicle side column collision test, thereby more accurately simulating the deformation of the door assembly 200 in the vehicle side column collision test.

[0042] In the side column collision test, the door assembly 200 can be a front door assembly or a rear door assembly; wherein the front door assembly includes a front door 20a and a B-pillar 20b (refer to Figure 4 ), the front door 20a is locked on the B-pillar 20b (in the whole vehicle, the front door 20a is usually locked on the B-pillar 20b), so as to more accurately simulate the whole vehicle environment; the rear door assembly 200 includes a rear door and a C-pillar, and the rear door is locked on the C-pillar (in the whole vehicle, the rear door is usually locked on the C-pillar), so as to more accurately simulate the whole vehicle environment. The following describes the operation of the sliding table test device 100 by taking the target object as the front door assembly as an example.

[0043] like Figures 2 to 4 As shown, in one embodiment, the mobile platform 10 includes a support platform 1, a first connecting component 2 and a second connecting component 3; the first connecting component 2 and the second connecting component 3 are arranged on the support platform 1 at intervals in front and back; the first connecting component 2 is used to connect the front side of the front door component, and the second connecting component 3 is used to connect the rear side of the front door component respectively; the support platform 1 can move along the left and right directions to approach or move away from the collision device 20, wherein when the support platform 1 approaches the collision device 20, the front door component installed on the support platform 1 can collide with the collision device 20. Among them, the front end of the front door component is the structure of the front door 20a, and the rear end of the front door component is the structure of the B-pillar 20b, that is, the first connecting component 2 is connected to the front door 20a, and the second connecting component 3 is connected to the B-pillar 20b.

[0044] In the whole vehicle, the front and rear sides of the front door assembly are connected to the corresponding parts of the vehicle body, while in this solution, the first connecting assembly 2 and the second connecting assembly 3 are respectively connected to the front and rear sides of the front door assembly, thereby more accurately simulating the whole vehicle environment and improving the test effect.

[0045] In addition, Figure 1In the embodiment, the left-right direction is parallel to the X-axis direction, the front-back direction is parallel to the Y-axis direction, and the vertical direction is parallel to the Z-axis direction. In addition, in this embodiment, the mobile platform 10 is located on the right side of the collision device 20; when the support platform 1 moves along the left direction, it can approach the collision device 20; when the support platform 1 moves along the right direction, it can move away from the collision device 20.

[0046] like Figure 3 As shown, in one embodiment, the support platform 1 includes a lower frame 11, an upper frame 12, a left frame 13 and a right frame 14, wherein the upper frame 12 is located above the lower frame 11, the left frame 13 is located on the left side of the right frame 14, the upper and lower ends of the left frame 13 are respectively connected to the upper frame 12 and the lower frame 11, and the upper and lower ends of the right frame 14 are respectively connected to the upper frame 12 and the lower frame 11. In addition, in the left and right directions, the size of the upper frame 12 is smaller than the lower frame 11, and the entire support platform 1 is a trapezoidal platform structure. In addition, the left side of the upper frame 12 is flush with the left side of the lower frame 11, and at this time, the support platform 1 is a right-angle trapezoidal platform structure. In addition, the first connecting component 2 and the second connecting component 3 can both be connected to the lower frame 11.

[0047] In the whole vehicle, the front door 20a in the front door assembly is usually connected to the vehicle body for rotation so that the front door 20a can be opened or closed (wherein, when the front door 20a is closed, the front door 20a is locked on the B-pillar 20b). When the front door 20a is hit, it will rotate relative to the vehicle body and move forward (such as the A-pillar). In order to improve the simulation effect, in one embodiment, the first connecting component 2 is used to connect to the front door assembly for rotation so that the front door assembly can rotate relative to the support platform 1 (the support platform 1 is the same as the vehicle body) when it collides with the collision device 20, wherein the axis of rotation of the front door assembly relative to the support platform 1 is parallel to the vertical direction. In addition, when the front door assembly rotates relative to the support platform 1, the first connecting component 2 can provide a damping force to the front door assembly to simulate the scene in which the A-pillar provides a reaction force to the front door 20a when the front door 20a moves toward the A-pillar.

[0048] like Figure 4 As shown, in one embodiment, the first connection component 2 includes a support column 21 and a damper 22; wherein the support column 21 is fixed on the support platform 1; the rear end of the damper 22 is fixedly connected to the support column 21, and the front end of the damper 22 is rotationally connected to the target object; wherein the damper 22 can be elastically retracted along the front-to-back direction. When the front door assembly rotates relative to the support platform 1, the front door 20a can stretch or compress the damper 22, and at this time, the damper 22 can provide a damping force for the rotational movement of the front door assembly relative to the support platform 1.

[0049] In addition, the damper can be an oil buffer, etc. In addition, a rotating shaft is provided on the front door 20a, a rotating ring is provided at the front end of the damper, and the rotating ring is sleeved on the rotating shaft to realize the rotation connection between the damper and the front door 20a, wherein the rotating ring can be a bearing, a sleeve, etc.

[0050] In the whole vehicle, the B-pillar 20b of the front door assembly is connected to other parts of the vehicle body. When the front door assembly is hit, the B-pillar 20b will also move into the vehicle, and the vehicle body will provide a reaction force to the movement of the B-pillar 20b. In order to improve the simulation effect, in one embodiment, the second connecting assembly 3 is used to be rotatably connected to the front door assembly so that the front door assembly can rotate relative to the support platform 1 when it collides with the collision device 20; wherein the axis of rotation of the front door assembly relative to the support platform 1 is parallel to the vertical direction. In addition, when the front door assembly rotates relative to the support platform 1, the second connecting assembly 3 can provide a damping force to the front door assembly, so as to simulate the scene in which the vehicle body provides a reaction force to the front door assembly when it moves into the vehicle.

[0051] Specifically, Figure 4 As shown, in one embodiment, the second connecting assembly 3 includes a rotating shaft 31, a connecting column 32 and a blocking member 33. The rotating shaft 31 is rotatably connected to the support platform 1, and the axis of rotation of the rotating shaft 31 relative to the support platform 1 is parallel to the vertical direction; the connecting column 32 is connected to the rotating shaft 31, and the front end of the connecting column 32 is used to connect with the B-pillar 20b; when the front door assembly is hit, it can apply force to the connecting column 32 and the rotating shaft 31 so that the connecting column 32 and the rotating shaft 31 rotate synchronously. The blocking member 33 is installed on the support platform 1, and when the front door assembly collides with the collision device 20, the front end of the connecting column 32 rotates toward the side away from the collision device 20 to squeeze the blocking member 33.

[0052] In this embodiment, when the support platform 1 drives the front door assembly to move to the left, it collides with the collision device 20. After the front door assembly is hit by the collision device 20, it moves to the right, and at this time, it can drive the front end of the rotating shaft 31 to deflect to the right. In addition, the connecting column 32 can squeeze the blocking member 33, thereby providing a damping force to the front door assembly, wherein the blocking block can be honeycomb aluminum or the like.

[0053] like Figure 4 As shown, the connecting posts 32 include a plurality of connecting posts 32 , each of which is sequentially arranged on the rotating shaft 31 from top to bottom. At the same time, each of the connecting posts 32 is connected to the B-pillar 20 b and can squeeze the blocking member 33 .

[0054] like Figure 3 and Figure 5As shown, in one embodiment, the mobile platform 10 further includes a rolling assembly 4, which is mounted on the support platform 1 so as to separate the support platform 1 from the ground; when the support platform 1 moves in the left and right directions, the rolling assembly 4 can contact the ground in a rolling friction manner, thereby reducing the friction between the mobile platform 10 and the ground. In addition, the rolling assembly 4 is mounted on the lower frame 11 of the support platform 1.

[0055] like Figure 5 As shown, in one embodiment, the rolling assembly 4 includes a swing arm 41, a roller 42 and an elastic member; the swing arm 41 is rotatably connected to the support platform 1, wherein the axis of rotation of the swing arm 41 relative to the support platform 1 is parallel to the left-right direction; the roller 42 is rotatably connected to the swing arm 41, and the axis of rotation of the roller 42 relative to the swing arm 41 is parallel to the front-back direction; the elastic member is compressed between the swing arm 41 and the support platform 1 so that the roller 42 is subjected to downward pressure. In this way, the roller 42 can always be in contact with the ground, and at the same time, when the ground is uneven, the swing of the swing arm 41 can also reduce the bumps and vibrations of the support platform 1. In this embodiment, the rolling assembly 4 is provided with a plurality of swing arms 41 and a plurality of rollers 42, each swing arm 41 is arranged on the support platform 1 at intervals, and each swing arm 41 is provided with at least one roller 42.

[0056] Specifically, in one embodiment, the swing arms 41 are arranged in two rows, wherein the two rows are spaced apart from each other, and the swing arms 41 in each row are spaced apart along the left-right direction. Meanwhile, a roller 42 is disposed on each swing arm 41 .

[0057] like Figure 5 As shown, in one embodiment, the rolling assembly 4 also includes a limit member 43, and the limit member 43 is arranged on the swing arm 41. When the swing arm 41 rotates, the upper end of the limit member 43 can contact with the support platform 1 to adjust the rotation angle of the swing arm 41. Specifically, the middle part of the swing arm 41 is rotatably connected with the support platform 1, the roller 42 is installed at one end of the swing arm 41, and the limit member 43 is installed at the other end of the swing arm 41. When the roller 42 moves downward, the limit member 43 moves upward until the limit member 43 contacts with the support platform 1, thereby preventing the roller 42 from continuing to move downward. In addition, a plurality of elastic members are provided, and at least one elastic member is provided between each swing arm 41 and the support platform 1. In addition, the elastic member can be a retaining spring or the like.

[0058] like Figure 1 and Figure 2As shown, in one embodiment, the mobile platform 10 further includes a guide assembly 5, which includes a first guide structure 51 and a second guide structure 52, wherein the first guide structure 51 is connected to the support platform 1, and the second guide structure 52 is disposed on the ground; the first guide structure 51 and the second guide structure 52 cooperate to guide the support platform 1 to move leftward. In addition, the first guide structure 51 is mounted on the lower frame 11 of the support platform 1.

[0059] Specifically, in one embodiment, the first guide structure 51 is a guide wheel, which is connected to the support platform 1 and can rotate relative to the support platform 1 around its own axis. The axis of the guide wheel is parallel to the vertical direction. The second guide structure 52 is a guide groove, in which the guide wheel is installed, and the guide wheel contacts the side wall of the guide groove. When the support platform 1 moves in the left and right directions, the guide wheel can rotate in the guide groove.

[0060] like Figure 3 and Figure 4 As shown, in one embodiment, the mobile platform 10 further includes a seat connection seat 6, which is connected to the support platform 1 and is used to install a seat. During the test, a dummy is placed on the seat to simulate the damage to the dummy caused by the test collision. In addition, the area between the first connection component 2 and the second connection component 3 is the front door component installation area, and the seat connection seat 6 is located on the right side of the front door component installation area.

[0061] like Figure 3 As shown, in one embodiment, the mobile platform 10 further includes a protective net 7, which is connected to the support platform 1 and is located on the right side of the seat connecting seat 6 to prevent the dummy from flying out during a collision test.

[0062] like Figure 1 As shown, in one embodiment, the collision device 20 includes a fixing seat 201 and a rigid column 202. The fixing seat 201 is fixed on the ground, and the rigid column 202 is installed on the fixing seat 201. During a collision, the rigid column 202 actually collides directly with the front door assembly.

[0063] In addition, in one embodiment, the rigid column 202 is detachably mounted on the fixing seat 201. For example, the rigid column 202 can be detachably connected to the fixing seat 201 by bolts, etc. This can be done by selecting a suitable rigid column 202 to be installed on the fixing seat 201 according to actual collision requirements.

[0064] like Figure 6As shown, in one embodiment, a plurality of slots 203 are provided on the fixing seat 201, and each slot 203 is arranged in sequence from top to bottom. During assembly, the bolt head of the bolt is stuck in the slot 203, and the bolt head can contact the slot wall of the slot 203 to prevent the bolt head from moving out of the slot 203 along the depth direction of the slot 203; after the stud of the bolt extends out of the slot 203 and passes through the corresponding through hole (or hollow notch) on the rigid column 202, it cooperates with the corresponding nut so that the corresponding areas of the rigid column 202 and the fixing seat 201 are tightened between the nut and the bolt head, thereby realizing the fixing of the rigid column 202 and the fixing seat 201 by bolt connection. Among them, the slot 203 can be a dovetail slot, etc. In addition, the slot 203 penetrates the fixing seat 201 along the front-back direction, and at this time, the bolt head can be placed in the slot 203 from the end of the slot 203.

[0065] like Figure 7 As shown, the rigid column 202 includes a column body 204 , a fixing frame 205 and a mounting plate 206 , wherein two ends of the fixing frame 205 are respectively connected to the column body 204 and the mounting plate 206 , and the mounting plate 206 is connected to the fixing seat 201 .

[0066] like Figure 1 and Figure 2 As shown, in one embodiment, the sliding table test device 100 also includes a buffer device 30, which is installed on the collision device 20 and / or the mobile platform 10; when the support platform 1 is close to the collision device 20, the buffer device 30 can be compressed between the support platform 1 and the collision device 20 to prevent the support platform 1 and the collision device 20 from rigidly colliding.

[0067] Specifically, the buffer device 30 includes a first buffer component 301 and a second buffer component 302, wherein the first buffer component 301 is mounted on the support platform 1, and the second buffer component 302 is mounted on the collision device 20. In addition, the first buffer component 301 is mounted on the lower frame 11 of the support platform 1, and the second buffer component 302 is mounted on the fixed seat 201. During the collision, the first buffer component 301 collides with the upper end of the fixed seat 201, and the second buffer component 302 collides with the lower end of the support platform 1, and at this time, the rigid column 202 is located between the first buffer component 301 and the second buffer component 302.

[0068] like Figure 6As shown, in one embodiment, the second buffer component 302 includes a bottom plate 303, a base 304, a cover plate 305 and an energy absorbing tube 306. The bottom plate 303 is mounted on the fixed seat 201, the base 304 is mounted on the bottom plate 303, the cover plate 305 is mounted on the base 304, and the cover plate 305 and the base 304 are enclosed to form a receiving space, and one end of the energy absorbing tube 306 is mounted in the receiving space. In addition, the base 304, the cover plate 305 and the energy absorbing tube 306 are all mounted on the side of the bottom plate 303 away from the fixed seat 201. In actual use, the cover plate 305 and the base 304 can clamp the energy absorbing tube 306 placed in the receiving space. During a collision, the energy absorbing tube 306 collides with the support platform 1 to achieve buffering and energy absorption. The material of the energy absorbing tube 306 can be EVA or the like.

[0069] In addition, the structural arrangement of the first buffer component 301 may be the same as that of the second buffer component 302 , and this embodiment will not be described in detail herein.

[0070] like Figure 2 As shown, a traction chain 40 is connected to the support platform 1 , and the traction chain 40 is connected to the driving device. When the driving device is working, the traction chain 40 can drive the support platform 1 to move in the left and right directions.

[0071] It should be understood that the above-mentioned related designs can also be replaced by other methods, such as:

[0072] In other embodiments, the buffer device 30 may also be disposed only on the mobile platform 10, and the buffer device 30 may also only include the first buffer component 301. Alternatively, the buffer device 30 may also be disposed only on the collision device, and the buffer device 30 may also only include the second buffer component 302.

[0073] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile platform, It is characterized in that It includes a support platform, a first connecting component and a second connecting component; The first connecting component and the second connecting component are arranged on the support platform with a front-to-back spacing; The first connecting component is used to connect to the front side of the target object, and the second connecting component is used to connect to the back side of the target object; The support platform can move left and right to approach or move away from the collision device; When the support platform is close to the collision device, the target object placed on the support platform can collide with the collision device; The first connecting component is used to be rotatably connected to the target object, so that the target object can rotate relative to the support platform when colliding with the collision device; Wherein, the axis of rotation of the target object relative to the support platform is parallel to the vertical direction, and when the target object rotates relative to the support platform, the first connecting component can provide a damping force to the target object; The first connection assembly includes a support column and a damper; The support column is fixed on the support platform; The rear end of the damper is fixedly connected to the support column, and the front end of the damper is used for rotationally connecting to the target object; The damper can be elastically extended and retracted along the front-back direction; The second connecting assembly is used to be rotatably connected to the target object, so that the target object can rotate relative to the support platform when colliding with the collision device; Wherein, the axis of rotation of the target object relative to the support platform is parallel to the vertical direction, and when the target object rotates relative to the support platform, the second connecting component can provide a damping force to the target object; The second connecting assembly includes a rotating shaft, a connecting column and a blocking member; The rotating shaft is rotatably connected to the supporting platform, and the axis of rotation of the rotating shaft relative to the supporting platform is parallel to the vertical direction; The connecting column is connected to the rotating shaft, and the front end of the connecting column is used to connect with the target object; The blocking member is mounted on the supporting platform, and when the target object collides with the collision device, the front end of the connecting column rotates toward a side away from the collision device to squeeze the blocking member.

2. The mobile platform according to claim 1, It is characterized in that The mobile platform further comprises a rolling assembly mounted on the support platform so as to space the support platform apart from the ground; When the support platform moves along the left and right directions, the rolling assembly can contact the ground in a rolling friction manner.

3. The mobile platform according to claim 2, It is characterized in that The rolling assembly includes a swing arm, a roller and an elastic member; The swing arm is rotatably connected to the support platform, wherein the axis of rotation of the swing arm relative to the support platform is parallel to the left-right direction; The roller is rotatably connected to the swing arm, and the axis of rotation of the roller relative to the swing arm is parallel to the front-rear direction; The elastic member is compressed between the swing arm and the support platform so that the roller is subjected to downward pressure.

4. The mobile platform according to claim 1, It is characterized in that The mobile platform further comprises a guide assembly, the guide assembly comprising a first guide structure and a second guide structure, the first guide structure is connected to the support platform, and the second guide structure is arranged on the ground; The first guide structure and the second guide structure cooperate to guide the movement of the support platform along the left-right direction.

5. A sliding table test device, It is characterized in that It comprises a collision device and the mobile platform described in any one of claims 1-4.

6. The sliding table test device according to claim 5, It is characterized in that The sliding table test device further comprises a buffer device, which is mounted on the collision device and / or the moving platform; When the support platform is close to the collision device, the buffer device can be compressed between the support platform and the collision device to prevent the support platform and the collision device from rigidly colliding.

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