Vehicle collision protection performance testing tool

Abstract

The invention discloses a vehicle collision protection performance testing tool, and belongs to the technical field of vehicle protection part performance testing, the vehicle collision protection performance testing tool comprises a bottom plate, and the left side of the upper end of the bottom plate is provided with a multi-stage adjusting type impact mechanism; the multi-stage adjusting type impact mechanism comprises a supporting frame, a rotating telescopic plate, a fourth push cylinder, a second driving assembly and a releasing assembly. The second driving assembly is installed on the left side of the upper end of the bottom plate, and the releasing assembly is installed on the second driving assembly and connected with the left end of the rotating telescopic plate. The supporting frame is fixedly installed on the left side of the upper end of the bottom plate. The left side of the middle of the rotary telescopic plate is hinged to the supporting frame. The fourth push cylinder is fixedly mounted at the upper end of the rotary telescopic plate; an encoder is arranged at the front end of the supporting frame. Through the above mode, all-around collision detection can be carried out on different parts of the automobile protection part, and when collision protection performance testing is carried out on different automobile protection parts of the same batch, the consistency of collision positions and angles is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of performance testing of automotive protection parts, and particularly relates to a vehicle collision protection performance testing tool. Background Art

[0002] Automotive protection parts are an important part of ensuring automotive safety, capable of absorbing energy during a collision and controlling and transferring stress to the vehicle body frame.

[0003] Chinese Patent CN215374881U discloses a detection device for the protection performance of vehicle body covering parts, including a bottom plate. A buffer assembly is fixedly installed on the top of the bottom plate, a connecting piece is fixedly installed on the top of the buffer assembly, a limiting sleeve rod is fixedly installed on the top of the bottom plate, a supporting platform is fixedly installed on the top of the connecting piece, a supporting plate is fixedly installed on the top of the supporting platform, an installation rod is fixedly installed on the top of the bottom plate, a slide rail plate is fixedly installed on the top of the installation rod, a motor assembly is fixedly installed on the outer wall of the installation rod, and a threaded transmission rod is fixedly installed on the left side of the motor assembly. However, the following problems still exist during the use of this device:

[0004] This device can only conduct collision tests on automotive parts from one direction. However, in actual collision scenarios, automotive protection accessories may be affected by different types of collision objects, and different collision forces and angles will lead to different collision results. Therefore, this device cannot accurately evaluate the protection performance of automotive protection accessories.

[0005] Based on this, the present invention designs a vehicle collision protection performance testing tool to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned drawbacks of the prior art, the present invention provides a vehicle collision protection performance testing tool.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A vehicle collision protection performance testing tool, including a bottom plate, further comprising a multi-stage adjustable impact mechanism and an encoder. On the upper left side of the bottom plate, a multi-stage adjustable impact mechanism is installed for performing collision protection tests on automotive protection parts with different collision forces; the multi-stage adjustable impact mechanism includes a support frame, a rotating and telescopic plate, a fourth push cylinder, a second drive assembly for controlling the collision release height of the rotating and telescopic plate, and a release assembly for releasing and locking the free rotation ability of the rotating and telescopic plate; the second drive assembly is installed on the upper left side of the bottom plate, the release assembly is installed on the second drive assembly, and the release assembly is connected to the left end of the rotating and telescopic plate; the support frame is fixedly installed on the upper left side of the bottom plate, and the middle left side of the rotating and telescopic plate is hinged to the support frame; the fourth push cylinder is fixedly installed on the upper end of the rotating and telescopic plate, and the output end of the fourth push cylinder is fixedly connected to the telescopic end of the rotating and telescopic plate; a sliding groove is provided on the left side of the rotating and telescopic plate; an encoder for precisely monitoring the position and state of the rotating and telescopic plate is provided at the front end of the support frame, and the stator of the encoder is fixedly connected to the support frame, and the rotor of the encoder is fixedly connected to the rotating shaft of the rotating and telescopic plate;

[0009] Furthermore, it further includes a synchronous movement mechanism, a fixing plate, a swing adjustment mechanism, a fixing mechanism, a multi-mode collision switching mechanism, and a CCD high-speed camera. On the upper right side of the bottom plate, a synchronous movement mechanism for controlling the left and right movement of the fixing plate in the horizontal direction is installed; the fixing plate is installed on the synchronous movement mechanism; the middle position of the fixing plate is set as the collision test station;

[0010] A swing adjustment mechanism is installed on the fixing plate for controlling the swing of the automotive protection part so that the surface of the automotive protection part can all move to the collision test station for testing; the swing adjustment mechanism includes an installation component adapted to different models of automotive protection parts, a moving component for driving the automotive protection part to be tested to move, and a first drive assembly for controlling the movement of the moving component; the first drive assembly and the moving component are both installed on the fixing plate, and the first drive assembly is connected to the moving component; the installation component is installed on the moving component; the automotive protection part is detachably installed on the installation component; a fixing mechanism for restricting the left and right movement of the fixing plate is also installed on the bottom plate and the fixing plate;

[0011] A multi-mode collision switching mechanism for switching different collision contact areas and different collision materials is installed at the right end of the rotating and telescopic plate; the CCD high-speed camera is fixedly arranged at the right end of the fixing plate for observing the changes of the automotive protection part at the collision test station when being collided;

[0012] Further, the second driving assembly includes an upright frame, a servo push cylinder, a second guide rod, and a receiving frame. The upright frame is fixedly installed on the upper left end of the bottom plate. A buffer column is provided on the upright frame to prevent a hard collision between the left end of the rotating telescopic plate and the upright frame when the left end rotates upward freely. The servo push cylinder is fixedly installed on the right end of the upright frame. The lower end of the second guide rod is fixedly connected to the receiving frame, and the upper end of the second guide rod is slidably connected to the upright frame with a limit. The output end of the servo push cylinder is fixedly connected to the receiving frame. The receiving frame is connected to the releasing assembly;

[0013] Further, the releasing assembly includes a third push cylinder, a third guide rod, a second push plate, and a rotating wheel. The third push cylinder is fixedly installed on the receiving frame, and the rear end of the third guide rod is slidably connected to the receiving frame with a limit. The front end of the third guide rod is fixedly connected to the second push plate. The output end of the third push cylinder is fixedly connected to the second push plate. A rotating wheel is rotatably installed at the front end of the second push plate. The rotating wheel is in rolling connection with the sliding groove;

[0014] Further, the first driving assembly includes a motor and a second driving gear. The motor is fixedly installed on the right end of the fixing plate, and the second driving gear is rotatably installed on the left end of the fixing plate. The output end of the motor is fixedly connected to the second driving gear. The second driving gear is connected to the movable assembly;

[0015] Further, the movable assembly includes an arc plate, an arc guide rail, an arc sliding plate, and a driven gear ring. The arc guide rail is fixedly installed on the upper left side of the left end of the fixing plate. The arc sliding plate is slidably connected to the arc guide rail with a limit. The arc sliding plate is fixedly connected to the arc plate. A driven gear ring is fixedly installed at the lower end of the arc plate. The driven gear ring is meshed with the second driving gear. An installation assembly is installed on the arc plate;

[0016] Further, the installation assembly includes a fixing frame, a horizontal guide rail, a horizontal slider, an installation plate, a bidirectional lead screw, and a rotation driving assembly for controlling the rotation of the bidirectional lead screw. The fixing frame is fixedly installed on the upper end of the arc plate. The horizontal guide rail is fixedly installed on the upper end of the fixing frame. Two horizontal sliders are symmetrically slidably arranged on the front and rear sides of the upper end of the horizontal guide rail. An installation plate is fixedly installed on the horizontal slider. The front and rear ends of the bidirectional lead screw are rotatably installed at the front and rear ends of the fixing frame. The installation plate is threadedly connected to the bidirectional lead screw. The rotation driving assembly is installed at the rear end of the fixing frame. And the rotation driving assembly is connected to the bidirectional lead screw;

[0017] Further, the fixing mechanism includes a first push cylinder, a first push plate, a first guide rod, and a fixing pin shaft. The first push cylinder is fixedly installed at the inner bottom end of the fixing plate. Two first guide rods are fixedly connected to the first push plate. The first guide rod is slidably connected to the inner bottom end of the fixing plate with a limit. The output end of the first push cylinder is fixedly connected to the first push plate. A fixing pin shaft is fixedly installed at the lower end of the first push plate. A plurality of fixing pin holes for inserting the fixing pin shaft are provided on the upper end of the bottom plate, and the fixing pin holes are evenly distributed at equal intervals in a linear array on the bottom plate;

[0018] Further, the synchronous movement mechanism includes a guide rail, a rack, a sliding block, a first driving gear, a mounting bracket and a first servo motor. The guide rails are symmetrically and fixedly installed on the front and rear sides of the upper end of the bottom plate; the rack is fixedly installed on the rear side of the upper end of the bottom plate; a plurality of sliding blocks are limit-slidingly connected to the guide rails; the upper ends of the front and rear sliding blocks are fixedly connected to the lower end of the fixing plate; a mounting bracket is fixedly installed on the rear side of the right end of the fixing plate; the first servo motor is fixedly installed on the upper end of the mounting bracket; the first driving gear is rotatably installed at the lower end of the mounting bracket, and the output end of the first servo motor is fixedly connected to the first driving gear; the first driving gear is meshed with the rack;

[0019] Further, the multi-mode collision switching mechanism includes a rotating cylinder and a mounting rod. The rotating cylinder is detachably arranged at the telescopic end of the rotating telescopic plate; a plurality of mounting rods are fixedly installed at the outer end of the rotating cylinder; collision members of different sizes are detachably installed at the outer end of the mounting rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. It can comprehensively detect different parts of the vehicle protection parts, reducing the extra workload of personnel to replace the positions of the vehicle protection parts. Moreover, when collision protection performance tests are carried out on different vehicle protection parts of the same batch, the collision positions and angles are consistent, improving the accuracy of the collision performance test;

[0021] 2. And through the multi-mode collision switching mechanism, the contact area when the collision member collides with the vehicle protection part and the material of the collision member can be freely changed, further improving the comprehensiveness of the collision protection performance test of the vehicle protection part;

[0022] 3. It enables the device to quickly change the different collision forces on the vehicle protection part, ensuring the comprehensiveness of the test. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is a three-dimensional view of a vehicle collision protection performance test tool of the present invention Figure 1 ;

[0025] Figure 2 is a front view of a vehicle collision protection performance test tool of the present invention;

[0026] Figure 3A three-dimensional view of a vehicle collision protection performance testing tool of the present invention Figure 2 ;

[0027] Figure 4 A three-dimensional view of a vehicle collision protection performance testing tool of the present invention Figure 3 ;

[0028] Figure 5 is Figure 1 an enlarged view of position A in

[0029] Figure 6 is Figure 1 an enlarged view of position B in

[0030] Figure 7 is Figure 3 an enlarged view of position C in

[0031] Figure 8 is Figure 4 an enlarged view of position D in

[0032] The reference numerals in the figure respectively represent:

[0033] 1. Base plate; 2. Synchronous moving mechanism; 21. Guide rail; 22. Rack; 23. Sliding block; 24. First driving gear; 25. Mounting bracket; 26. First servo motor; 3. Fixed plate; 4. Swing adjustment mechanism; 41. First driving component; 411. Motor; 412. Second driving gear; 42. Moving component; 421. Arc plate; 422. Arc guide rail; 423. Arc sliding plate; 425. Driven gear ring; 43. Mounting component; 431. Fixed frame; 432. Horizontal guide rail; 433. Horizontal slider; 434. Mounting plate; 435. Bidirectional lead screw; 436. Second servo motor; 5. Fixing mechanism; 51. First push cylinder; 52. First push plate; 53. First guide rod; 54. Fixed pin shaft; 55. Fixed pin hole; 6. Multi-stage adjustable impact mechanism; 61. Second driving component; 611. Upright frame; 612. Servo push cylinder; 613. Second guide rod; 614. Bearing bracket; 62. Release component; 621. Third push cylinder; 622. Third guide rod; 623. Second push plate; 624. Rotating wheel; 63. Support frame; 64. Rotating telescopic plate; 65. Fourth push cylinder; 66. Sliding groove; 7. Multi-mode collision switching mechanism; 71. Rotating cylinder; 72. Mounting rod; 8. Encoder; 9. CCD high-speed camera. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] In the following description, the "left", "right", "front", "rear", "upper", and "lower" mentioned are oriented in the perspective direction of the front view.

[0036] Embodiment 1: In some embodiments, referring to Figures 1 - 8 of the accompanying drawings of the specification, a vehicle collision protection performance test tool includes a bottom plate 1, and further includes a synchronous movement mechanism 2, a fixing plate 3, a swing adjustment mechanism 4, a fixing mechanism 5, a multi-stage adjustable impact mechanism 6, a multi-mode collision switching mechanism 7, an encoder 8, and a CCD high-speed camera 9. A synchronous movement mechanism 2 for controlling the left-right movement of the fixing plate 3 in the horizontal direction is installed on the upper right side of the bottom plate 1; the fixing plate 3 is installed on the synchronous movement mechanism 2; the middle position of the fixing plate 3 is set as the collision test station;

[0037] A swing adjustment mechanism 4 for controlling the swing of the vehicle protection part so that the surfaces of the vehicle protection parts can all move to the collision test station for testing is installed on the fixing plate 3; the swing adjustment mechanism 4 includes a mounting component 43 adapted to different models of vehicle protection parts, a movable component 42 for driving the vehicle protection part to be tested to move, and a first driving component 41 for controlling the movement of the movable component 42; the first driving component 41 and the movable component 42 are both installed on the fixing plate 3, and the first driving component 41 is connected to the movable component 42; the mounting component 43 is installed on the movable component 42; the vehicle protection part is detachably installed on the mounting component 43;

[0038] A fixing mechanism 5 for restricting the left-right movement of the fixing plate 3 is further installed on the bottom plate 1 and the fixing plate 3;

[0039] On the upper left side of the bottom plate 1, a multi-stage adjustable impact mechanism 6 is installed for colliding with the vehicle protection parts installed on the movable component 42 with different collision forces; the multi-stage adjustable impact mechanism 6 includes a support frame 63, a rotating and telescopic plate 64, a fourth push cylinder 65, a sliding groove 66, a second drive component 61 for controlling the collision release height of the rotating and telescopic plate 64, and a release component 62 for releasing and locking the free rotation ability of the rotating and telescopic plate 64; the second drive component 61 is installed on the upper left side of the bottom plate 1, the release component 62 is installed on the second drive component 61, and the release component 62 is connected to the left end of the rotating and telescopic plate 64; the support frame 63 is fixedly installed on the upper left side of the bottom plate 1, and the left side of the middle part of the rotating and telescopic plate 64 is hinged to the support frame 63; the fourth push cylinder 65 is fixedly installed on the upper end of the rotating and telescopic plate 64, and the output end of the fourth push cylinder 65 is fixedly connected to the telescopic end of the rotating and telescopic plate 64; a sliding groove 66 is arranged on the left side of the rotating and telescopic plate 64;

[0040] A multi-mode collision switching mechanism 7 for switching different collision contact areas and different collision materials is installed at the right end of the rotating and telescopic plate 64; an encoder 8 for accurately monitoring the position and state of the rotating and telescopic plate 64 is arranged at the front end of the support frame 63, and the stator of the encoder 8 is fixedly connected to the support frame 63, and the rotor of the encoder is fixedly connected to the rotating shaft of the rotating and telescopic plate 64; a CCD high-speed camera 9 is fixedly arranged at the right end of the fixed plate 3 for observing the changes of the vehicle protection parts at the collision test station when being collided.

[0041] In the present invention, since the hinge point is on the left side of the middle part of the rotating and telescopic plate 64, and a collision part is arranged at the right end of the rotating and telescopic plate 64, the weight of the right end of the rotating and telescopic plate 64 is greater than the weight of the left end of the rotating and telescopic plate 64. At this time, the right end of the rotating and telescopic plate 64 will always tend to rotate downward until the left end of the rotating and telescopic plate 64 contacts the second drive component 61. At this time, the second drive component 61 will limit the left end of the rotating and telescopic plate 64 from continuing to rotate upward;

[0042] When starting the protection performance test, the operator installs the vehicle protection part to be tested on the installation component 43. Subsequently, the release component 62 is actuated to release the free rotation ability of the rotating telescopic plate 64. Then, the second drive component 61 is actuated to drive the release component 62 to move downward. As the release component 62 moves, the left end of the rotating telescopic plate 64 will rotate downward around the hinge point with the support frame 63 until the right end of the rotating telescopic plate 64 is lifted to the set height. Subsequently, the release component 62 is actuated to release the rotation restriction on the left end of the rotating telescopic plate 64. At this time, the right end of the rotating telescopic plate 64 will rotate downward around the hinge point with the support frame 63 until the collision part provided at the right end of the rotating telescopic plate 64 contacts the vehicle protection part installed on the installation component 43. Then, the encoder 8 will record the angle at which the rotating telescopic plate 64 rebounds upward when the collision part collides with the vehicle protection part, and the CCD high-speed camera 9 will record the deformation of the vehicle protection part at the collision test station, facilitating the evaluation of the protection performance of the vehicle protection part. When it is necessary to conduct a collision test on other positions on the upper end surface of the vehicle protection part, the first drive component 41 is actuated to drive the movable component 42 to swing left or right. At this time, the installation component 43 moves together with the movable component 42, enabling the vehicle protection part with a curved upper end surface to also be subjected to a full-range collision test at the collision test station. Subsequently, by repeating the above operations, all aspects of the vehicle protection part can be comprehensively collision-tested, reducing the additional workload of personnel for changing the position of the vehicle protection part. Moreover, when different vehicle protection parts of the same batch are subjected to the collision protection performance test, the collision position and angle are consistent, improving the accuracy of the collision performance test.

[0043] The fourth push cylinder 65 is actuated to drive the telescopic end of the rotating telescopic plate 64 to shorten leftward or extend rightward. Subsequently, the synchronous moving mechanism 2 is actuated to drive the fixing plate 3 to move horizontally left or right synchronously together and fix the horizontal position of the fixing plate 3 through the fixing mechanism 5, so that the vehicle protection part installed on the installation component 43 is always aligned with the rotation landing point of the right end of the rotating telescopic plate 64. Since the hinge point and the lifting angle of the rotating telescopic plate 64 are fixed, the longer the length of the rotating telescopic plate 64, the greater the height difference between the rotating telescopic plate 64 and the vehicle protection part fixed on the movable component 42 when the right end of the rotating telescopic plate 64 is lifted by the second drive component 61. At this time, the rotating telescopic plate 64 will exert a greater collision force on the vehicle protection part. This enables the device to quickly change the different collision forces on the vehicle protection part, ensuring the comprehensiveness of the test. And through the multi-mode collision switching mechanism 7, the contact area when the collision part collides with the vehicle protection part and the material of the collision part can be freely changed, further enhancing the comprehensiveness of the collision protection performance test of the vehicle protection part.

[0044] Embodiment 2: In some embodiments, such as Figure 1 , Figure 2 , Figure 3 ,Figure 6 and Figure 7 As a preferred embodiment of the present invention, the second driving assembly 61 includes a vertical frame 611, a servo push cylinder 612, a second guide rod 613 and a receiving frame 614. The vertical frame 611 is fixedly installed on the upper left side of the bottom plate 1; a buffer column is provided on the vertical frame 611 to prevent the left end of the rotating telescopic plate 64 from freely rotating upward and colliding hard with the vertical frame 611; the servo push cylinder 612 is fixedly installed on the right end of the vertical frame 611; the lower end of the second guide rod 613 is fixedly connected to the receiving frame 614, and the upper end of the second guide rod 613 is in limit sliding connection with the vertical frame 611; the output end of the servo push cylinder 612 is fixedly connected to the receiving frame 614; the receiving frame 614 is connected to the release assembly 62;

[0045] The release assembly 62 includes a third push cylinder 621, a third guide rod 622, a second push plate 623 and a rotating wheel 624. The third push cylinder 621 is fixedly installed on the receiving frame 614, and the rear end of the third guide rod 622 is in limit sliding connection with the receiving frame 614; the front end of the third guide rod 622 is fixedly connected to the second push plate 623; the output end of the third push cylinder 621 is fixedly connected to the second push plate 623; a rotating wheel 624 is rotatably installed at the front end of the second push plate 623; the rotating wheel 624 is in rolling connection with the sliding groove 66;

[0046] In the present invention, an operator installs the automotive protective part to be tested on the installation assembly 43. Subsequently, the third push cylinder 621 works to push the second push plate 623 to move forward along with the third guide rod 622 until the rotating wheel 624 connected to the second push plate 623 moves into the sliding groove 66 provided at the left end of the rotating telescopic plate 64. Subsequently, the servo push cylinder 612 works to push the receiving frame 614 to move downward along with the second guide rod 613. And during the movement of the receiving frame 614, the rotating wheel 624 will move leftward along the sliding groove 66 and drive the left end of the rotating telescopic plate 64 to rotate downward around the hinge point with the support frame 63. At the same time, the right end of the rotating telescopic plate 64 rotates upward until the lifting angle of the rotating telescopic plate 64 reaches the set value. Subsequently, the third push cylinder 621 works to drive the rotating wheel 624 to reset backward, so that the rotating wheel 624 is separated from the sliding groove 66 to release the rotation restriction on the rotating telescopic plate 64. Subsequently, the right end of the rotating telescopic plate 64 rotates downward until the collision part provided at the right end of the rotating telescopic plate 64 contacts the automotive protective part installed on the installation assembly 43. Subsequently, the encoder 8 will work to record the angle at which the rotating telescopic plate 64 rebounds upward when the collision part collides with the automotive protective part, and the CCD high-speed camera 9 will work to record the deformation condition of the automotive protective part at the collision test station, which is convenient for evaluating the protection performance of the automotive protective part.

[0047] Embodiment 3: In some embodiments, such as Figures 1 - 6As shown, as a preferred embodiment of the present invention, the first driving assembly 41 includes a motor 411 and a second driving gear 412. The motor 411 is fixedly installed at the right end of the fixing plate 3, and the second driving gear 412 is rotatably installed at the left end of the fixing plate 3; the output end of the motor 411 is fixedly connected to the second driving gear 412; the second driving gear 412 is connected to the movable assembly 42;

[0048] The movable assembly 42 includes an arc plate 421, an arc guide rail 422, an arc sliding plate 423 and a driven gear ring 425. The arc guide rail 422 is fixedly installed on the upper side of the left end of the fixing plate 3; the arc sliding plate 423 is in limiting sliding connection with the arc guide rail 422; the arc sliding plate 423 is fixedly connected to the arc plate 421; a driven gear ring 425 is fixedly installed at the lower end of the arc plate 421; the driven gear ring 425 is meshed and connected with the second driving gear 412; an installation assembly 43 is installed on the arc plate 421;

[0049] The installation assembly 43 includes a fixing frame 431, a horizontal guide rail 432, a horizontal slider 433, an installation plate 434, a bidirectional lead screw 435 and a second servo motor 436. The fixing frame 431 is fixedly installed at the upper end of the arc plate 421; the horizontal guide rail 432 is fixedly installed at the upper end of the fixing frame 431; two horizontal sliders 433 are symmetrically and slidably arranged on the front and rear sides of the upper end of the horizontal guide rail 432; an installation plate 434 is fixedly installed on the horizontal slider 433; the front and rear ends of the bidirectional lead screw 435 are rotatably installed at the front and rear ends of the fixing frame 431; the installation plate 434 is threadedly connected to the bidirectional lead screw 435; the second servo motor 436 is fixedly installed at the rear end of the fixing frame 431; and the output end of the second servo motor 436 is fixedly connected to the bidirectional lead screw 435;

[0050] The fixing mechanism 5 includes a first push cylinder 51, a first push plate 52, a first guide rod 53 and a fixing pin 54. The first push cylinder 51 is fixedly installed at the inner bottom end of the fixing plate 3; two first guide rods 53 are fixedly connected to the first push plate 52; the first guide rod 53 is in limiting sliding connection with the inner bottom end of the fixing plate 3; the output end of the first push cylinder 51 is fixedly connected to the first push plate 52; a fixing pin 54 is fixedly installed at the lower end of the first push plate 52; a plurality of fixing pin holes 55 for inserting the fixing pin 54 are provided at the upper end of the bottom plate 1, and the fixing pin holes 55 are evenly distributed at equal intervals in a linear array on the bottom plate 1;

[0051] The synchronous moving mechanism 2 includes a guide rail 21, a rack 22, a sliding block 23, a first driving gear 24, a mounting bracket 25 and a first servo motor 26. The guide rail 21 is symmetrically and fixedly installed on the front and rear sides of the upper end of the bottom plate 1; the rack 22 is fixedly installed on the rear side of the upper end of the bottom plate 1; a plurality of sliding blocks 23 are slidably connected to the guide rail 21 in a limited manner; the upper ends of the front and rear sliding blocks 23 are fixedly connected to the lower end of the fixing plate 3; a mounting bracket 25 is fixedly installed on the rear side of the right end of the fixing plate 3; the first servo motor 26 is fixedly installed on the upper end of the mounting bracket 25; the first driving gear 24 is rotatably installed on the lower end of the mounting bracket 25, and the output end of the first servo motor 26 is fixedly connected to the first driving gear 24; the first driving gear 24 is meshed with the rack 22;

[0052] The multi-mode collision switching mechanism 7 includes a rotating cylinder 71 and a mounting rod 72. The rotating cylinder 71 is detachably arranged at the telescopic end of the rotating telescopic plate 64; a plurality of mounting rods 72 are fixedly installed at the outer end of the rotating cylinder 71; collision members of different sizes are detachably installed at the outer ends of the mounting rods 72; the lower part of the rotating cylinder 71 is set as an impact station;

[0053] In the present invention, the second servo motor 436 works to drive the bidirectional lead screw 435 to rotate, so that the front and rear two horizontal sliders 433 drive the mounting plate 434 to move outward or inward along the horizontal guide rail 432 at the same time, so as to adapt to the installation operations of automobile protection parts of different models and different lengths; then the automobile protection parts can be detachably installed on the mounting plate 434;

[0054] When it is necessary to perform collision tests on other positions of the upper end surface of the automobile protection part, the motor 411 works to drive the second driving gear 412 to rotate, and the second driving gear 412 rotates to drive the driven gear ring 425 to rotate. At this time, the driven gear ring 425 will drive the arc plate 421 to slide forward or backward along the arc guide rail 422 following the arc sliding plate 423, so that the automobile protection part with a curved upper end surface can also be subjected to a full-range collision test at the collision test station;

[0055] When it is necessary to change the different collision forces on the automobile protection part, the fourth push cylinder 65 works to drive the telescopic end of the rotating telescopic plate 64 to shorten to the left or extend to the right. Subsequently, the first servo motor 26 works to drive the first driving gear 24 to rotate, and the first driving gear 24 rotates. At this time, under the action of the rack 22, the sliding block 23 will drive the fixing plate 3 to move horizontally to the left or right along the guide rail 21, so that the collision test station is always aligned with the rotation landing point at the right end of the rotating telescopic plate 64;

[0056] When it is necessary to change the contact area when the collision part collides with the vehicle protection part and the material of the collision part, after removing the rotating cylinder 71, twist the rotating cylinder 71 to drive the mounting rod 72 to rotate together, so that collision parts of different sizes rotate to the impact station of the rotating cylinder 71; and by installing collision parts of different materials on different mounting rods 72, the comprehensiveness of the collision protection performance test can be improved.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle collision protection performance test tool, comprising a bottom plate (1), characterized in that: It further includes a multi-stage adjustable impact mechanism (6) and an encoder (8). A multi-stage adjustable impact mechanism (6) for performing collision protection tests on automotive protection parts with different collision forces is installed on the upper left side of the bottom plate (1); the multi-stage adjustable impact mechanism (6) includes a support frame (63), a rotating and telescopic plate (64), a fourth push cylinder (65), a second driving component (61) for controlling the collision release height of the rotating and telescopic plate (64), and a release component (62) for releasing and locking the free rotation ability of the rotating and telescopic plate (64); the second driving component (61) is installed on the upper left side of the bottom plate (1), the release component (62) is installed on the second driving component (61), and the release component (62) is connected to the left end of the rotating and telescopic plate (64); the support frame (63) is fixedly installed on the upper left side of the bottom plate (1), and the middle left side of the rotating and telescopic plate (64) is hinged to the support frame (63); the fourth push cylinder (65) is fixedly installed on the upper end of the rotating and telescopic plate (64), and the output end of the fourth push cylinder (65) is fixedly connected to the telescopic end of the rotating and telescopic plate (64); a sliding groove (66) is provided on the left side of the rotating and telescopic plate (64); an encoder (8) for precisely monitoring the position and state of the rotating and telescopic plate (64) is provided at the front end of the support frame (63), and the stator of the encoder (8) is fixedly connected to the support frame (63), and the rotor of the encoder is fixedly connected to the rotating shaft of the rotating and telescopic plate (64).

2. The vehicle collision protection performance testing tool according to claim 1, wherein It further includes a synchronous moving mechanism (2), a fixing plate (3), a swing adjustment mechanism (4), a fixing mechanism (5), a multi-mode collision switching mechanism (7) and a CCD high-speed camera (9). A synchronous moving mechanism (2) for controlling the left-right movement of the fixing plate (3) in the horizontal direction is installed on the upper right side of the bottom plate (1); the fixing plate (3) is installed on the synchronous moving mechanism (2); the middle position of the fixing plate (3) is set as the collision test station; A swing adjustment mechanism (4) for controlling the swing of the automotive protection part so that the surfaces of the automotive protection parts can all move to the collision test station for testing is installed on the fixing plate (3); the swing adjustment mechanism (4) includes a mounting component (43) adapted to different models of automotive protection parts, a moving component (42) for driving the automotive protection part to be tested to move, and a first driving component (41) for controlling the movement of the moving component (42); the first driving component (41) and the moving component (42) are both installed on the fixing plate (3), and the first driving component (41) is connected to the moving component (42); the mounting component (43) is installed on the moving component (42); the automotive protection part is detachably installed on the mounting component (43); a fixing mechanism (5) for restricting the left-right movement of the fixing plate (3) is also installed on the bottom plate (1) and the fixing plate (3); A multi-mode collision switching mechanism (7) for switching different collision contact areas and different collision materials is installed at the right end of the rotating telescopic plate (64); a CCD high-speed camera (9) is fixedly arranged at the right end of the fixed plate (3) for observing the changes of the automotive protective parts at the collision test station when they are collided.

3. The vehicle collision protection performance testing tool according to claim 1, characterized in that The second driving assembly (61) includes a vertical frame (611), a servo push cylinder (612), a second guide rod (613) and a receiving frame (614). The vertical frame (611) is fixedly installed on the upper left side of the bottom plate (1); a buffer column is arranged on the vertical frame (611) to prevent a hard collision between the left end of the rotating telescopic plate (64) and the vertical frame (611) when the left end rotates upward freely; the servo push cylinder (612) is fixedly installed at the right end of the vertical frame (611); the lower end of the second guide rod (613) is fixedly connected with the receiving frame (614), and the upper end of the second guide rod (613) is connected with the vertical frame (611) in a limiting sliding manner; the output end of the servo push cylinder (612) is fixedly connected with the receiving frame (614); the receiving frame (614) is connected with the release assembly (62).

4. The vehicle collision protection performance testing tool according to claim 3, wherein The release assembly (62) includes a third push cylinder (621), a third guide rod (622), a second push plate (623) and a rotating wheel (624). The third push cylinder (621) is fixedly installed on the receiving frame (614), and the rear end of the third guide rod (622) is connected with the receiving frame (614) in a limiting sliding manner; the front end of the third guide rod (622) is fixedly connected with the second push plate (623); the output end of the third push cylinder (621) is fixedly connected with the second push plate (623); a rotating wheel (624) is rotatably installed at the front end of the second push plate (623); the rotating wheel (624) is in rolling connection with the sliding groove (66).

5. The vehicle collision protection performance test tool according to claim 2, characterized in that, The first driving assembly (41) includes a motor (411) and a second driving gear (412). The motor (411) is fixedly installed at the right end of the fixed plate (3), and the second driving gear (412) is rotatably installed at the left end of the fixed plate (3); the output end of the motor (411) is fixedly connected with the second driving gear (412); the second driving gear (412) is connected with the moving assembly (42).

6. The vehicle collision protection performance test tool according to claim 5, characterized in that The moving assembly (42) includes an arc plate (421), an arc guide rail (422), an arc sliding plate (423) and a driven gear ring (425). The arc guide rail (422) is fixedly installed on the upper left side of the left end of the fixed plate (3); the arc sliding plate (423) is connected with the arc guide rail (422) in a limiting sliding manner; the arc sliding plate (423) is fixedly connected with the arc plate (421); the lower end of the arc plate (421) is fixedly installed with the driven gear ring (425); the driven gear ring (425) is meshed with the second driving gear (412); an installation assembly (43) is installed on the arc plate (421).

7. The vehicle collision protection performance test tool according to claim 6, characterized in that, The installation component (43) includes a fixing frame (431), a horizontal guide rail (432), a horizontal slider (433), a mounting plate (434), a bidirectional lead screw (435), and a rotation drive component for controlling the rotation of the bidirectional lead screw (435). The fixing frame (431) is fixedly installed at the upper end of the arc plate (421); the horizontal guide rail (432) is fixedly installed at the upper end of the fixing frame (431); two horizontal sliders (433) are symmetrically and slidably arranged on the front and rear sides of the upper end of the horizontal guide rail (432); a mounting plate (434) is fixedly installed on the horizontal slider (433); the front and rear ends of the bidirectional lead screw (435) are rotatably installed at the front and rear ends of the fixing frame (431); the mounting plate (434) is threadedly connected to the bidirectional lead screw (435); the rotation drive component is installed at the rear end of the fixing frame (431); and the rotation drive component is connected to the bidirectional lead screw (435).

8. The vehicle collision protection performance test tool according to claim 7, characterized in that, The fixing mechanism (5) includes a first push cylinder (51), a first push plate (52), a first guide rod (53), and a fixing pin shaft (54). The first push cylinder (51) is fixedly installed at the inner bottom end of the fixing plate (3); two first guide rods (53) are fixedly connected to the first push plate (52); the first guide rod (53) is in limit sliding connection with the inner bottom end of the fixing plate (3); the output end of the first push cylinder (51) is fixedly connected to the first push plate (52); a fixing pin shaft (54) is fixedly installed at the lower end of the first push plate (52); a plurality of fixing pin holes (55) for inserting the fixing pin shaft (54) are provided at the upper end of the bottom plate (1), and the fixing pin holes (55) are evenly distributed at equal intervals in a linear array on the bottom plate (1).

9. The vehicle collision protection performance test tool according to claim 8, wherein The synchronous movement mechanism (2) includes a guide rail (21), a rack (22), a sliding block (23), a first driving gear (24), a mounting frame (25), and a first servo motor (26). The guide rails (21) are symmetrically and fixedly installed on the front and rear sides of the upper end of the bottom plate (1); the rack (22) is fixedly installed on the rear side of the upper end of the bottom plate (1); a plurality of sliding blocks (23) are in limit sliding connection on the guide rail (21); the upper ends of the front and rear sliding blocks (23) are fixedly connected to the lower end of the fixing plate (3); a mounting frame (25) is fixedly installed at the rear side of the right end of the fixing plate (3); the first servo motor (26) is fixedly installed at the upper end of the mounting frame (25); the first driving gear (24) is rotatably installed at the lower end of the mounting frame (25), and the output end of the first servo motor (26) is fixedly connected to the first driving gear (24); the first driving gear (24) is meshed with the rack (22).

10. The vehicle collision protection performance test tool according to claim 2, wherein, The multi-mode collision switching mechanism (7) includes a rotating cylinder (71) and a mounting rod (72). The rotating cylinder (71) is detachably arranged at the telescopic end of the rotating telescopic plate (64); a plurality of mounting rods (72) are fixedly installed at the outer end of the rotating cylinder (71); collision members of different sizes are detachably installed at the outer ends of the mounting rods (72).

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