A system for testing automobile collision performance

Abstract

The present invention discloses a system for testing the collision performance of an automobile, comprising a first mounting platform, a barrier, a second mounting platform, a trigger bar, a pressure sensor, a data acquisition device, and a camera; the first mounting platform comprises a mounting plate, two first fixing bars, at least two sets of adjustment components, a mounting frame, and at least two sets of connecting components; the adjusting component comprises a fixing block, a fixing plate, and a first bolt; one end face of the fixing plate is fixedly connected to the side face of the first fixing bar, the fixing plate and the fixing block are arranged relative to each other along the x-direction, and the fixing block is fixedly connected to the mounting plate; the first bolt passes through both the fixing plate and the fixing block and is threadedly connected to the fixing block; the connecting component comprises a first support column and a first connecting plate for connecting to a part to be tested or a barrier; the dimensions of the second mounting platform are both larger than the dimensions of the largest part to be tested and the dimensions of the barrier, and are used for detachable connection to the part to be tested or the barrier. The system of the present application is compatible with collision tests of parts to be tested of different models and types.

Description

Technical Field

[0001] The present application relates to the technical field of automobile collision testing, and in particular, to a system for automobile collision performance testing. Background Art

[0002] During the automobile development process, the evaluation of the collision safety performance of automobile parts such as bumpers, B-pillars, and body is very important. Currently, there are three types of automotive crash tests. The first involves using the entire vehicle to perform a crash test on the part under test. This method is most realistic, but the entire vehicle must be replaced after each test, which is costly and time-consuming. The second method uses a pendulum to verify the crash performance of the part under test. This verification is independent of the actual vehicle. In real-world tests, other deformable components surrounding the part under test, such as the bumper fascia, locking plate, and bumper foam, participate in the entire test process. Their deformation absorbs some of the energy, making this simple, isolated performance test impractical. The third method involves a bumper crash test. This involves mounting the bumper under test on a test vehicle using a mounting platform within the crash performance test system. The bumper is then collided with a barrier using the vehicle's traction system. While this method provides realistic results, the traditional mounting platform can only accommodate one type of bumper. However, there are many different types of bumpers, each with different dimensions, mounting locations, collision locations, and angles. Furthermore, the system cannot directly perform crash tests on other parts, such as the B-pillar and body, making it difficult to integrate with the crash performance test system. Summary of the Invention

[0003] To solve at least one aspect of the above problems, the present invention provides a system for testing automobile collision performance, comprising a first mounting platform, a barrier, a second mounting platform, a trigger bar, a pressure sensor, a data acquisition device and a camera; the first mounting platform comprises a mounting plate, two first fixing bars, at least two groups of adjustment components, a mounting bracket and at least two groups of connecting components; a plurality of first mounting holes are provided on both sides of the mounting plate; the first fixing bar extends along the x-direction, and the two first fixing bars are respectively overlapped at both ends of the first side surface of the mounting plate along the y-direction; the adjusting component comprises a fixing block, a fixing plate and a first bolt; one end face of the fixing plate is fixedly connected to the side face of the first fixing bar, the fixing plate and the fixing block are arranged opposite to each other along the x-direction, and the fixing block is fixed to the mounting plate; the first bolt passes through the fixing plate and the fixing block at the same time and is threadedly connected to the fixing block; both ends of the mounting bracket are respectively fixedly connected to the sides of the two first fixing bars away from the mounting plate, and a second mounting hole is provided on the side face of the two ends of the mounting bracket away from the first fixing bar for connecting to the test vehicle; the two groups of connecting components are respectively arranged on the second side face of the mounting plate opposite to the first side face The second side surface is along both ends of the y-direction; the connection assembly includes a first support column and a first connecting plate, the first support column being arranged perpendicular to the mounting plate and connected to the mounting plate; the first connecting plate is fixedly connected to one end of the first support column away from the mounting plate, and is configured to be connected to the DUT or the barrier; the dimensions of the second mounting platform are both larger than the dimensions of the largest DUT and the dimensions of the barrier; when the first connecting plate is connected to the DUT, the barrier is detachably connected to the second mounting platform, or when the first connecting plate is connected to the barrier, a fixing bracket is detachably connected to the second mounting platform, and is configured to fix the DUT; a trigger bar is fixedly connected to the barrier or the location to be collided with the DUT; a camera is aligned with the location to be collided with the DUT, and the camera is electrically connected to the trigger bar, so that when the trigger bar detects a collision between the DUT and the barrier, the camera is triggered to start taking real-time images of the collision location of the DUT; a pressure sensor is fixedly connected to the barrier or the fixing bracket, and the pressure sensor is electrically connected to the trigger bar and a data acquisition device, so that when the trigger bar detects a collision between the DUT and the barrier, the pressure sensor is triggered to detect pressure in real time and transmit the pressure to the data acquisition device for storage.

[0004] Through the above technical solution, a first mounting platform is designed for mounting the DUT or barrier. The first bolt is used to slowly adjust the distance between the fixing plate and the fixing block, preventing the front of the test vehicle from being lifted or lowered during the adjustment process, which could result in an inability to determine the adjustment reference. The first bolt is then used to achieve fixation, allowing the vertical height of the first fixing bar relative to the mounting plate to be adjusted without the need for other auxiliary tools, such as an overhead crane, thereby changing the height of the DUT relative to the test vehicle. This allows the first mounting platform of the present application to be compatible with testing of different models of DUTs, such as bumpers, and barriers of different heights, such as B-pillars and vehicle bodies. By designing a barrier or fixing bracket to be detachably connected to the second mounting platform, the second mounting platform can be compatible with mounting barriers of different positions, such as bumpers, and testing of different models of DUTs, such as B-pillars and vehicle bodies. Therefore, the system of the present application is compatible with collision testing of different models and types of DUTs.

[0005] Preferably, the fixing frame includes an upper bracket, which includes a first connecting bar, two second connecting plates, and at least two clamping rods; the first connecting bar is arranged along the x-direction, with the two ends of the first side surface of the first connecting bar respectively fixedly connected to the two second connecting plates, and the two second connecting plates are used for detachable connection to the second mounting platform; the two clamping rods are both arranged along the y-direction on the second side surface of the first connecting bar opposite the first side surface, the distance between the two clamping rods is less than the extension dimension of the top of the B-pillar along the x-direction, one end of the clamping rod is hinged to the first connecting bar, and the other end is detachably connected to the first connecting bar. With the above technical solution, when testing the collision performance of the B-pillar, both ends of the top of the B-pillar are fixed with clamping rods.

[0006] Preferably, the upper bracket further comprises a contoured rod, which is arranged along the x-direction, matches the inner side surface of the top end of the B-pillar, and is fixedly connected to the first connecting bar. The contoured rod is designed to help improve the stability of the connection between the B-pillar and the upper bracket.

[0007] Preferably, the upper bracket further comprises two reinforcing frames and two clamping blocks; a groove matching the profiling rod is formed on the first side of the clamping block, the two ends of the profiling rod are respectively mounted in the grooves of the two clamping blocks, and the two ends of the first side of the clamping block abut against the first connecting strip; the two reinforcing frames are respectively arranged at the two ends of the first connecting strip, and the reinforcing frames and the second side of the first connecting strip form a structure surrounding the clamping block, and the reinforcing frames are provided with an eighth bolt, which passes through the reinforcing frames and abuts or is threadedly connected to the second side of the clamping block opposite to the first side, and the profiling block is fixedly connected to the first connecting strip via the clamping blocks and the reinforcing frames. The above technical solution discloses a method for fixedly connecting the profiling rod to the first connecting strip, wherein the reinforcing frames and the eighth bolt improve the connection strength between the clamping block and the first connecting strip, and prevent the bolts from being disengaged during a collision test when the clamping block is directly connected to the first connecting strip via bolts.

[0008] Preferably, a pad is provided at one end of the clamping rod, the pad is fixedly connected to the first connecting strip, the clamping rod and the pad are hinged, and one end of the clamping rod is hinged to the first connecting strip via the pad. Through the above technical solution, the design of the pad helps to increase the distance between the clamping rod and the first connecting strip.

[0009] Preferably, a plurality of the second mounting holes are provided along the x-direction. The test vehicle further comprises a vertical third elongated hole formed on both sides of the front end of the test vehicle. An eighth bolt is disposed in each of the third elongated holes. The eighth bolt extends through the third elongated hole and is inserted into any second mounting hole on the corresponding side of the first mounting platform, where it is threadedly connected to the second mounting hole. The aforementioned technical solution, by providing the third elongated hole at the front end of the test vehicle, facilitates adjustment of the relative height of the test vehicle and the first mounting platform, thereby further expanding the range of height adjustment of the test object or barrier relative to the test vehicle.

[0010] Preferably, the test vehicle is provided with a plurality of counterweights, which are all detachably connected to the test vehicle. Through the above technical solution, the counterweights are designed on the test vehicle so that the test vehicle can be adapted to collision tests of different vehicle weights.

[0011] Preferably, the connecting assembly also includes a first movable plate; the first movable plate is fixedly connected to one end of the first support column close to the mounting plate; a first elongated hole is opened on the first movable plate, and a second bolt is provided on the first movable plate, and the second bolt passes through the first elongated hole and the first mounting hole at the same time, and is threadedly connected to the first mounting hole.

[0012] Preferably, four connecting assemblies are provided, one at each end of the second side surface of the mounting plate along the y-direction; two barriers are provided, each arranged along the y-direction, with both ends of the barrier connected to the first connecting plate on the same side. This technical solution discloses a technical solution for connecting two barriers to a first mounting platform.

[0013] Preferably, a plurality of cameras are provided, and the plurality of cameras are located near the barrier or on the first mounting platform, and are all aimed at the location to be collided with on the test piece.

[0014] The system for testing automobile collision performance of the present invention has the following beneficial effects:

[0015] (1) The test vehicle is fixed to the first side of the mounting plate by the first fixing bar, the mounting frame and the fixing plate; the test piece or the barrier is fixed to the second side of the mounting plate by the first supporting column and the first connecting plate; without the need for other auxiliary tools, the distance between the fixing block and the fixing plate is slowly adjusted and fixed by the first bolt, thereby avoiding the situation in which the front of the test vehicle is lifted or lowered during the adjustment process, resulting in the inability to determine the adjustment reference, and realizing the adjustment of the position of the first fixing bar relative to the mounting plate, and designing a vertical third long hole at the front end of the test vehicle to realize the test By adjusting the relative position between the vehicle and the first mounting platform, the first mounting platform of the present application can be compatible with different models of DUTs, such as bumpers, and barriers of different heights, such as B-pillars and vehicle bodies. By designing the first movable plate and the first elongated hole thereon, the distance between the two first support pillars can be adjusted to accommodate DUTs or barriers of varying lengths. By designing a barrier or mounting bracket that can be detachably connected to the second mounting platform, the second mounting platform can be compatible with barriers of varying positions, such as bumpers, and different models of DUTs, such as B-pillars and vehicle bodies. Therefore, the system of the present application is compatible with collision testing of different models and types of DUTs.

[0016] (2) By designing at least two clamping rods on the upper bracket for fixing the two ends of the top of the B-pillar, and using a contour rod that matches the inner surface of the top of the B-pillar, the stability of the connection between the top of the B-pillar and the first connecting strip is improved; by designing a reinforcement frame, a clamping block and an eighth bolt at both ends of the contour rod, the contour rod and the first connecting strip are fixed, preventing the bolts from being disengaged during the collision test when the clamping block is directly connected to the first connecting strip by bolts, thereby further improving the strength of the connection between the B-pillar and the upper bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To better understand the above and other objects, features, advantages, and functions of the present invention, reference may be made to the embodiments shown in the accompanying drawings. Like reference numerals in the accompanying drawings refer to like components. Those skilled in the art should understand that the accompanying drawings are intended to schematically illustrate preferred embodiments of the present invention and have no limiting effect on the scope of the present invention. The components in the drawings are not drawn to scale.

[0018] Figure 1 A schematic diagram showing a first embodiment of a system for testing automobile crash performance according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic structural diagram of a first installation platform of a system for testing automobile crash performance according to an embodiment of the present invention is shown;

[0020] Figure 3 A top view of a first mounting platform of a system for testing automobile crash performance according to an embodiment of the present invention is shown;

[0021] Figure 4 It shows a front view of a first mounting platform of a system for testing automobile crash performance according to an embodiment of the present invention;

[0022] Figure 5 A schematic diagram showing a second embodiment of a system for testing automobile crash performance according to an embodiment of the present invention is shown;

[0023] Figure 6 A front view of a fixing frame of a system for testing automobile crash performance according to an embodiment of the present invention is shown;

[0024] Figure 7 A schematic diagram of a bracket on a fixing frame of a system for testing automobile collision performance according to an embodiment of the present invention is shown.

[0025] Description of reference numerals:

[0026] 01. First mounting platform; 1. Mounting plate; 11. First mounting hole; 12. Third mounting hole; 2. First fixing bar; 21. Fixing plate; 211. Second elongated hole; 212. Seventh bolt; 3. Adjustment assembly; 31. Fixing block; 32. Fixing plate; 33. First bolt; 4. Mounting frame; 41. First rod; 411. Second mounting hole; 42. Second rod; 5. Connecting assembly; 51. First movable plate; 511. First elongated hole; 52. First support column; 53. First connecting plate; 6. Clamping assembly; 61. Clamping block; 62. Third bolt; 63. Fourth bolt; 7. Support assembly; 71. Support bar; 72. Fifth bolt; 73. Sixth bolt; 8. Connecting plate; 81. Fourth mounting hole; 9. Reinforcement plate; 02, test vehicle; 03, barrier; 04, second mounting platform; 05, trigger bar; 06, camera; 07, pressure sensor; 071, data acquisition device; 08, bumper; 09, fixing frame; 91, upper bracket; 911, first connecting bar; 912, second connecting plate; 913, second movable plate; 914, second fixing bar; 915, reinforcing bar; 916, clamping rod; 9161, pad; 917, reinforcing frame; 9171, eighth bolt; 918, contour rod; 919, clamping block; 9191, groove; 92, lower bracket; 921, second connecting bar; 922, third connecting plate; 923, third movable plate; 924, fourth connecting plate; 925, second support column; 10, B-pillar. DETAILED DESCRIPTION

[0027] The following description of exemplary embodiments of the present disclosure is made in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding. These details should be considered as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0028] As used herein, the term "including" and its variations represent open inclusion, i.e., "including but not limited to." Unless otherwise stated, the term "or" means "and / or." The term "based on" means "based at least in part on." The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment." The term "another embodiment" means "at least one additional embodiment." The terms "first," "second," etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0029] To at least partially address one or more of the aforementioned and other potential issues, an embodiment of the present disclosure provides a system for testing automobile crash performance, comprising a first mounting platform 01, a barrier 03, a second mounting platform 04, a trigger bar 05, a pressure sensor 07, a data acquisition device 071, and a camera 06. The first mounting platform 01 comprises a mounting plate 1, two first fixing bars 2, at least two sets of adjustment components 3, a mounting bracket 4, and at least two sets of connection components 5. A plurality of first mounting holes 11 are provided on both sides of the mounting plate 1. The first fixing bars 2 extend along the x-direction, and the two first fixing bars 2 are respectively overlapped on the first side of the mounting plate 1. Along the two ends of the y direction; the adjustment component 3 includes a fixing block 31, a fixing plate 32 and a first bolt 33; one end face of the fixing plate 32 is fixedly connected to the side of the first fixing bar 2, the fixing plate 32 and the fixing block 31 are arranged opposite to each other along the x direction, and the fixing block 31 is fixedly connected to the mounting plate 1; the first bolt 33 passes through the fixing plate 32 and the fixing block 31 at the same time, and is threadedly connected to the fixing block 31; the two ends of the mounting bracket 4 are respectively fixedly connected to the two first fixing bars 2 away from the side of the mounting plate 1, and the two ends of the mounting bracket 4 are provided with a second mounting hole 411 on the side surface away from the first fixing bar 2 for connecting to the test vehicle 02; the two sets of connecting components 5 are respectively arranged on the mounting plate 1 and the first The second side surface opposite to the side surface is along the two ends of the y direction; the connecting component 5 includes a first support column 52 and a first connecting plate 53, the first support column 52 is arranged perpendicular to the mounting plate 1 and is connected to the mounting plate 1; the first connecting plate 53 is fixedly connected to the end of the first support column 52 away from the mounting plate 1, and is used to connect with the workpiece to be tested or the barrier 03; the size of the second mounting platform 04 is larger than the size of the largest workpiece to be tested and the size of the barrier 03. When the first connecting plate 53 is connected to the workpiece to be tested, the barrier 03 and the second mounting platform 04 are detachably connected, or when the first connecting plate 53 is connected to the barrier 03, the second mounting platform 04 is detachably connected with a fixing frame 09, and the fixing frame 09 is used The device is used to fix the piece to be tested; the trigger bar 05 is fixedly connected to the barrier 03 or the part to be tested where it is to be collided; the camera 06 is aimed at the collision part of the piece to be tested, and the camera 06 is electrically connected to the trigger bar 05, and is used to trigger the camera 06 to start taking real-time photos of the collision part of the piece to be tested when the trigger bar 05 detects that the piece to be tested has collided with the barrier 03; the pressure sensor 07 is fixedly connected inside the barrier 03 or inside the fixing frame 09, and the pressure sensor 07 is electrically connected to the trigger bar 05 and the data acquisition device 071, and is used to trigger the pressure sensor 07 to detect the pressure in real time and transmit it to the data acquisition device 071 for storage when the trigger bar 05 detects that the piece to be tested has collided with the barrier 03.

[0030] Specifically, if Figures 1 to 5As shown, a plurality of first mounting holes 11 are provided on both sides of the mounting plate 1. Preferably, the first mounting holes 11 pass through the mounting plate 1, and the plurality of first mounting holes 11 are evenly distributed in an array. Preferably, both ends of one end face of the mounting plate 1 are fixedly connected with a hanging ring; the first fixing bar 2 extends along the x direction, and the two first fixing bars 2 are respectively overlapped at the two ends of the first side face of the mounting plate 1 along the y direction; the adjusting assembly 3 is provided with multiple groups, which are respectively provided on one side or both sides of the two first fixing bars 2, or the adjusting assembly 3 is provided with two groups, which are respectively provided on the side close to the two first fixing bars 2; the adjusting assembly 3 includes a fixing block 31, a fixing plate 32 and a first bolt 33; the fixing plate 32 is provided perpendicular to the side face of the first fixing bar 2, and one end face of the fixing plate 32 is fixedly connected to the side face of the first fixing bar 2; fixed The block 31 and the fixing plate 32 are arranged opposite to each other along the x direction, and the fixing block 31 is fixed to the mounting plate 1 by bolts; the first bolt 33 penetrates the fixing plate 32 and the fixing block 31 at the same time, and is threadedly connected to the fixing block 31; in some embodiments, the two first fixing bars 2 are connected to the sides away from each other with a fixing plate 21, the fixing plate 21 extends along the x direction, the cross-section of the fixing plate 21 is L-shaped, the side of the fixing plate 21 parallel to the xz plane is fixedly connected to the side of the first fixing bar 2, and the side parallel to the xy plane is provided with a plurality of second elongated holes 211 extending along the x direction, and the plurality of second elongated holes 211 are evenly distributed along the x direction; a plurality of seventh bolts 212 are provided on the fixing plate 21, and the plurality of seventh bolts 212 respectively penetrate the plurality of second elongated holes 211 and are all threadedly connected to the first mounting hole 11.

[0031] The two ends of the mounting bracket 4 are respectively fixedly connected to the side surfaces of the two first fixing bars 2 away from the mounting plate 1, and second mounting holes 411 are opened on the side surfaces of the two ends of the mounting bracket 4 away from the first fixing bars 2 for connecting with the test vehicle 02; specifically, the mounting bracket 4 includes two first rods 41 extending along the x-direction and two second rods 42 extending along the y-direction, and the two first rods 41 and the two second rods 42 are fixed vertically and cross-fixed in pairs to form a rectangular frame structure; the two first rods 41 are respectively fixedly connected to the side surfaces of the two first fixing bars 2 away from the mounting plate 1, and a plurality of second mounting holes 411 are opened on the side surfaces of the two first rods 41 away from the first fixing bar 2, and the plurality of second mounting holes 411 are evenly distributed along the x-direction. Preferably, a rod along the y-direction is fixedly inserted into the second mounting hole 411. A fixing cylinder in the z direction, the test vehicle 02 is threadedly connected to the fixing cylinder by bolts; in some embodiments, a connecting piece 8 is provided at both ends of the mounting frame 4, the connecting piece 8 extends along the x direction, the cross section of the connecting piece 8 is L-shaped, the surface of the connecting piece 8 parallel to the xy direction is flush with the surface of the first rod 41 away from the first fixing bar 2, and the surfaces of the two connecting pieces 8 parallel to the xz direction are respectively fixed to the side surfaces away from the two first rods 41; a plurality of fourth mounting holes 81 are opened on the connecting piece 8, and the plurality of fourth mounting holes 81 are evenly arranged along the x direction, and the diameter of the fourth mounting hole 81 is different from the diameter of the second mounting hole 411, and is used to connect with the test vehicle 02; preferably, a triangular reinforcing plate 9 is fixedly installed between the end face of the first rod 41 of the mounting frame 4 and the side face of the first fixing bar 2.

[0032] In some embodiments, the mounting plate 1 is provided with two sets of support assemblies 7, each connected to the two second rods 42. The support assemblies 7 include a support bar 71 and at least two fifth bolts 72. The support bar 71 extends along the y-direction, with one side of the support bar 71 abutting the side of the second rod 42 proximal to the mounting plate 1. The two fifth bolts 72 extend through the mounting plate 1 along the z-direction and are disposed within the support bar 71, respectively threadedly connected to the ends of the support bar 71. In other embodiments, the support assembly 7 further includes a sixth bolt 73, which is disposed perpendicular to the fifth bolt 72. In this embodiment, the sixth bolt 73 extends along the x-direction, abuts the fifth bolt 72, and is threadedly connected to the support bar 71.

[0033] like Figures 2 to 5As shown, two groups of connecting components 5 are respectively arranged at the two ends of the second side surface of the mounting plate 1 along the y direction; the connecting component 5 includes a first support column 52 and a first connecting plate 53, the first support column 52 is arranged perpendicular to the mounting plate 1 and connected to the mounting plate 1; the first connecting plate 53 is fixedly connected to the end of the first support column 52 away from the mounting plate 1, for connecting to the bumper 08 to be tested; in some embodiments, the connecting component 5 also includes a first movable plate 51; the first movable plate 51 is fixedly connected to the end of the first support column 52 close to the mounting plate 1; first elongated holes 511 are provided on opposite sides of the first movable plate 51, and a second bolt is provided on the first movable plate 51, and the second bolt passes through the first elongated hole 511 and the first mounting hole 11 at the same time, and is threadedly connected to the first mounting hole 11, and the first support column 52 is connected to the mounting plate 1 through the first movable plate 51. In other embodiments, such as Figure 5 As shown, there are four groups of connecting components 5, which are respectively arranged at both ends of the second side surface of the mounting plate 1 along the y direction; there are two barriers 03, which are arranged along the y direction, and the two ends of the barriers 03 are respectively connected to the first connecting plate 53 on the same side.

[0034] In some embodiments, the two end faces of the mounting plate 1 along the y direction are respectively provided with a plurality of third mounting holes 12 distributed along the x direction; it also includes at least two groups of clamping assemblies 6. In this embodiment, four clamping assemblies 6 are provided, which are respectively arranged at both ends of the mounting plate 1 along the y direction; the clamping assembly 6 includes a clamping block 61 and a third bolt 62. The clamping block 61 is detachably connected to the end face of the mounting plate 1. Specifically, a fourth bolt 63 is connected to the clamping block 61. The fourth bolt 63 passes through the clamping block 61 and is arranged in any third mounting hole 12, and is threadedly connected to the third mounting hole 12; the third bolt 62 is located on one side of the second side surface of the mounting plate 1. The third bolt 62 is arranged along the y direction. The third bolt 62 passes through the clamping block 61 and is threadedly connected to the clamping block 61 for mounting the test piece.

[0035] The size of the second mounting platform 04 is larger than the size of the largest DUT and the size of the barrier 03. When the first connecting plate 53 is connected to the DUT, as shown in FIG. Figure 1 As shown, the barrier 03 is block-shaped, and the barrier 03 is detachably connected to the second mounting platform 04, or when the first connecting plate 53 is connected to the barrier 03, as shown in FIG. Figure 5As shown, barrier 03 is strip-shaped, with its two ends detachably connected to two first connecting plates 53. A fixing bracket 09 is detachably connected to the second mounting platform 04, and is used to fix the test piece. Specifically, second mounting platform 04 is vertically fixed, and a plurality of fixing holes are formed on its surface, and the fixing holes are evenly distributed in an array. The system of the present application also includes a test vehicle 02, the traction power system of which is perpendicular to second mounting platform 04. Vertical third elongated holes are formed on both sides of the front end of test vehicle 02, and eighth bolts 9171 are provided in the third elongated holes. The eighth bolts 9171 pass through the third elongated holes and are inserted into any second mounting hole 411 on the corresponding side of first mounting platform 01, and are threadedly connected to the second mounting hole 411. Test vehicle 02 is provided with a plurality of counterweights, and the counterweights are all detachably connected to test vehicle 02.

[0036] like Figures 5 to 7 As shown, the fixing frame 09 includes an upper bracket 91 and a lower bracket 92, the upper bracket 91 includes a first connecting strip 911, two second connecting plates 912, two second movable plates 913, two second fixing strips 914, and at least two clamping rods 916; the two second movable plates 913 are distributed along the x direction, and the second movable plates 913 are provided with a fourth long hole along the x direction, and the second movable plates 913 are detachably connected to the second mounting platform 04 through the fourth long hole; the two second connecting plates 912 are respectively parallel to and fixedly connected to the two second movable plates 913; the second fixing strip 914 is arranged along the y direction, and the two second fixing strips 914 are respectively fixedly connected to the two movable plates, preferably, a reinforcing strip 915 arranged along the x direction is fixedly connected between the two second fixing strips 914; the first connecting strip 911 is arranged along the x direction, the first The two ends of the first side surface of the connecting strip 911 are respectively fixedly connected to the side surfaces of the two second fixing strips 914. In this embodiment, the width of the first connecting strip 911 is smaller than the width of the reinforcing strip 915; preferably, there are multiple clamping rods 916, and the clamping rods 916 are arranged along the y direction on the second side surface of the first connecting strip 911 and its first side surface. The distance between the two clamping rods 916 is smaller than the extension dimension of the top end of the B-pillar 10 along the x direction. One end of the clamping rod 916 is hinged to the first connecting strip 911 or the reinforcing strip 915, and the other end is detachably connected to the first connecting strip 911 or the reinforcing strip 915. Preferably, a pad 9161 is provided at one end of the clamping rod 916, and the pad 9161 is fixedly connected to the first connecting strip 911. The clamping rod 916 is hinged to the pad 9161, and one end of the clamping rod 916 is hinged to the first connecting strip 911 through the pad 9161.

[0037] In some embodiments, the upper bracket 91 further includes a profiling rod 918; the profiling rod 918 is arranged along the x direction, the profiling rod 918 matches the inner side surface of the top of the B-pillar 10, and the profiling rod 918 is fixedly connected to the first connecting bar 911; the upper bracket 91 further includes two reinforcing frames 917 and two clamping blocks 919; a groove 9191 matching the profiling rod 918 is opened on the first side surface of the clamping block 919, and the two ends of the profiling rod 918 are respectively installed in the grooves 9191 of the two clamping blocks 919, and the two ends of the first side surface of the clamping block 919 are respectively installed in the grooves 9191 of the two clamping blocks The ends are in abutment with the first connecting strip 911; two reinforcing frames 917 are respectively arranged at the two ends of the first connecting strip 911, and the reinforcing frames 917 and the second side surface of the first connecting strip 911 or the second fixing strip 914 form a structure surrounding the clamping block 919, and the reinforcing frame 917 is provided with an eighth bolt 9171, which passes through the reinforcing frame 917 and is in abutment with or threadedly connected to the second side surface of the clamping block 919 opposite to the first side surface. The profiling block is fixed to the first connecting strip 911 through the clamping block 919 and the reinforcing frame 917.

[0038] The lower bracket 92 includes a second connecting bar 921, two third connecting plates 922, two third movable plates 923, two fourth connecting plates 924 and two second support columns 925; the two third movable plates 923 are distributed along the x-direction, and the third movable plates 923 are provided with a fifth elongated hole along the x-direction, and the third movable plates 923 are detachably connected to the second mounting platform 04 through the fifth elongated hole; the two third connecting plates 922 are parallel to and fixedly connected to the two third movable plates 923 respectively; the two second support columns 925 are respectively perpendicular to the two third connecting plates 922, and one end of the second support column 925 is fixedly connected to the third connecting plate 922; the two fourth connecting plates 924 are respectively opposite to the two third connecting plates 922, and the other end of the second support column 925 is fixedly connected to the fourth connecting plate 924; the second connecting bar 921 is arranged along the x-direction, and the two ends of the second connecting bar 921 are fixedly connected to the two fourth connecting plates 924 respectively; the second connecting bar 921 is provided with a fixing hole for detachably connecting to the lower end of the B-pillar 10.

[0039] When the barrier 03 is mounted on the second mounting platform 04, as shown in FIG. Figure 1 As shown, the trigger bar 05 is fixedly connected to the location to be collided of the barrier 03; when the test piece is mounted on the second mounting platform 04, as shown Figure 5As shown, the trigger bar 05 is fixedly connected to the part to be collided with the workpiece to be tested; the camera 06 is aimed at the collision part of the workpiece to be tested. Preferably, a plurality of cameras 06 are provided, and the plurality of cameras 06 are located near the barrier 03 or on the first mounting platform 01, and are all aimed at the part to be collided with the workpiece to be tested. The plurality of cameras 06 are all electrically connected to the trigger bar 05, and are used to trigger the camera 06 to start taking real-time photos of the collision part of the workpiece to be tested from different angles when the trigger bar 05 detects that the workpiece to be tested has collided with the barrier 03; when the barrier 03 is mounted on the second mounting platform 04, as shown Figure 1 As shown, the pressure sensor 07 is fixedly connected to the barrier 03; when the test piece is mounted on the second mounting platform 04, as shown Figure 5 As shown, four pressure sensors 07 are provided, which are fixedly arranged between the second movable plate 913 and the second connecting plate 912, and between the third movable plate 923 and the third connecting plate 922 in the fixing frame 09. The pressure sensor 07 is electrically connected to the trigger bar 05 and the data acquisition device 071. When the trigger bar 05 detects that the test piece collides with the barrier 03, the pressure sensor 07 is triggered to detect the pressure in real time and transmit it to the data acquisition device 071 for storage.

[0040] While various embodiments of the present disclosure have been described above, the foregoing description is intended to be illustrative, non-exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand this document.

Claims

1. A system for automobile crash performance testing, characterized by: It comprises a first mounting platform (01), a barrier (03), a second mounting platform (04), a trigger bar (05), a pressure sensor (07), a data acquisition device (071) and a camera (06); The first mounting platform (01) comprises a mounting plate (1), two first fixing bars (2), at least two groups of adjustment components (3), a mounting frame (4) and at least two groups of connection components (5); a plurality of first mounting holes (11) are provided on both sides of the mounting plate (1); the first fixing bars (2) extend along the x-direction, and the two first fixing bars (2) are respectively overlapped at two ends of the first side surface of the mounting plate (1) along the y-direction; the adjustment component (3) comprises a fixing block (31), a fixing plate (32) and a first bolt (33); one end surface of the fixing plate (32) is fixedly connected to the side surface of the first fixing bar (2), the fixing plate (32) and the fixing block (31) are arranged opposite to each other along the x-direction, and the fixing block (31) is fixedly connected to the mounting plate (1); the first bolt (33) also penetrates the fixing plate (32) and a fixing block (31), and is threadedly connected to the fixing block (31); the two ends of the mounting frame (4) are respectively fixedly connected to the side surfaces of the two first fixing bars (2) away from the mounting plate (1); a second mounting hole (411) is provided on the side surface of the two ends of the mounting frame (4) away from the first fixing bars (2), for connecting to the test vehicle (02); two groups of connecting components (5) are respectively arranged at the two ends of the second side surface of the mounting plate (1) opposite to the first side surface along the y direction; the connecting component (5) includes a first support column (52) and a first connecting plate (53), the first support column (52) is arranged perpendicular to the mounting plate (1) and connected to the mounting plate (1); the first connecting plate (53) is fixedly connected to one end of the first support column (52) away from the mounting plate (1), for connecting to the test piece or the barrier (03); The size of the second mounting platform (04) is larger than the size of the largest piece to be tested and the size of the barrier (03); when the first connecting plate (53) is connected to the piece to be tested, the barrier (03) and the second mounting platform (04) are detachably connected; or when the first connecting plate (53) is connected to the barrier (03), a fixing frame (09) is detachably connected to the second mounting platform (04), and the fixing frame (09) is used to fix the piece to be tested; The trigger bar (05) is fixedly connected to the barrier (03) or the location to be collided of the test piece; The camera (06) is aimed at the collision point of the test piece, and the camera (06) is electrically connected to the trigger bar (05), so as to trigger the camera (06) to start taking real-time photos of the collision point of the test piece when the trigger bar (05) detects that the test piece collides with the barrier (03); The pressure sensor (07) is fixedly connected in the barrier (03) or in the fixing frame (09). The pressure sensor (07) is electrically connected to the trigger bar (05) and the data acquisition device (071). When the trigger bar (05) detects that the test piece collides with the barrier (03), the pressure sensor (07) is triggered to detect the pressure in real time and transmit the pressure to the data acquisition device (071) for storage.

2. The system for testing automobile crash performance according to claim 1, characterized in that: The fixing frame (09) includes an upper bracket (91), and the upper bracket (91) includes a first connecting strip (911), two second connecting plates (912) and at least two clamping rods (916); the first connecting strip (911) is arranged along the x direction, and the two ends of the first side surface of the first connecting strip (911) are respectively fixed to the two second connecting plates (912), and the two second connecting plates (912) are used for detachable connection with the second mounting platform (04); the two clamping rods (916) are both arranged along the y direction on the second side surface of the first connecting strip (911) opposite to the first side surface thereof, and the distance between the two clamping rods (916) is smaller than the extension dimension of the top end of the B-pillar (10) along the x direction, and one end of the clamping rod (916) is hinged to the first connecting strip (911), and the other end is detachably connected to the first connecting strip (911).

3. The system for testing automobile crash performance according to claim 2, characterized in that: The upper bracket (91) further includes a profiling rod (918); the profiling rod (918) is arranged along the x-direction, the profiling rod (918) matches the inner side surface of the top end of the B-pillar (10), and the profiling rod (918) is fixedly connected to the first connecting bar (911).

4. The system for testing automobile crash performance according to claim 3, characterized in that: The upper bracket (91) further comprises two reinforcing frames (917) and two clamping blocks (919); a groove (9191) matching the profiling rod (918) is provided on the first side surface of the clamping block (919); the two ends of the profiling rod (918) are respectively installed in the grooves (9191) of the two clamping blocks (919); the two ends of the first side surface of the clamping block (919) are both in contact with the first connecting bar (911); the two reinforcing frames (917) are respectively arranged on the first connecting bar (911); At both ends of (911), the reinforcing frame (917) and the second side surface of the first connecting strip (911) form a structure surrounding the clamping block (919), and an eighth bolt (9171) is provided on the reinforcing frame (917). The eighth bolt (9171) passes through the reinforcing frame (917) and abuts or is threadedly connected to the second side surface of the clamping block (919) opposite to the first side surface. The profiling block is fixedly connected to the first connecting strip (911) through the clamping block (919) and the reinforcing frame (917).

5. The system for testing automobile crash performance according to claim 2, characterized in that: One end of the clamping rod (916) is provided with a pad (9161), the pad (9161) is fixedly connected to the first connecting strip (911), the clamping rod (916) and the pad (9161) are hinged, and one end of the clamping rod (916) is hinged to the first connecting strip (911) through the pad (9161).

6. The system for testing automobile crash performance according to claim 1, characterized in that: The second mounting holes (411) are provided in plurality along the x-direction; and the test vehicle (02) is further provided with a vertical third elongated hole on both sides of the front end of the test vehicle (02), an eighth bolt (9171) is provided in the third elongated hole, and the eighth bolt (9171) passes through the third elongated hole and is passed through any second mounting hole (411) on the corresponding side of the first mounting platform (01), and is threadedly connected to the second mounting hole (411).

7. The system for testing automobile crash performance according to claim 6, characterized in that: The test vehicle (02) is provided with a plurality of counterweight blocks, and the plurality of counterweight blocks are detachably connected to the test vehicle (02).

8. The system for testing automobile crash performance according to claim 1, characterized in that: The connecting assembly (5) further comprises a first movable plate (51); the first movable plate (51) is fixedly connected to one end of the first support column (52) close to the mounting plate (1); a first elongated hole (511) is provided on the first movable plate (51); a second bolt is provided on the first movable plate (51); the second bolt simultaneously passes through the first elongated hole (511) and the first mounting hole (11), and is threadedly connected to the first mounting hole (11).

9. The system for testing automobile crash performance according to claim 1, characterized in that: Four groups of connection components (5) are provided, which are respectively arranged at the two ends of the second side surface of the mounting plate (1) along the y direction; two barriers (03) are provided, and the barriers (03) are arranged along the y direction, and the two ends of the barriers (03) are respectively connected to the first connection plate (53) located on the same side.

10. The system for testing automobile crash performance according to claim 1, characterized in that: A plurality of cameras (06) are provided, and the plurality of cameras (06) are located near the barrier (03) or on the first mounting platform (01), and are all aimed at the location to be collided with the test piece.

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