Collision test device
By setting up an acute-angle impact head in the crash test device, the problem that the existing test device cannot effectively simulate the collision of the entire vehicle is solved, the test is realized closer to the real collision conditions, and the accuracy and safety evaluation of the test are improved.
Patent Information
- Application Number
- CN202323550112.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The existing vehicle side impact test device cannot effectively simulate the vehicle collision situation, resulting in a large difference between the deformation method of the B-pillar assembly and the vehicle collision results, and the real collision situation cannot be reproduced.
Design a collision test device in which the angle between the straight line in which the impact head moves toward the part to be impacted and the impact end face is set to an acute angle. The impact head can impact the weak points of the part to be impacted, thereby better simulating the impact of the entire vehicle. Collision situation.
By setting an acute-angled impact head, the collision situation of the entire vehicle can be simulated more accurately, which improves the authenticity and accuracy of the test and enhances the assessment of vehicle safety.
Smart Images
Figure CN222379312U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle safety testing, in particular to a collision test device. Background Art
[0002] Before a vehicle is put into use, it needs to undergo safety tests. One important safety test is the vehicle side impact test, which analyzes the side impact performance of the vehicle B-pillar by colliding with the vehicle body, and then judges the safety of the vehicle. However, the vehicle side impact test process is cumbersome and the test cycle is long; after the vehicle side impact test is completed, the vehicle cannot be reused due to collision deformation.
[0003] In the related art, the collision trolley uses an impact head with an arc-shaped contact surface to impact the B-pillar assembly, and uses the B-pillar collision to simulate the side collision of the whole vehicle. However, in this test, the deformation of the B-pillar assembly is very different from the collision result of the whole vehicle, and the subsystem cannot reproduce the actual collision situation of the whole vehicle. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a collision test device, in which the angle between the straight line in which the impact head moves toward the part to be impacted and the impact end face is set to an acute angle, and the impact head can impact the weak point of the part to be impacted, so as to better simulate the collision of the whole vehicle, thereby being closer to the real collision condition.
[0005] According to the collision test device of the embodiment of the utility model, it includes: a clamping assembly, which is suitable for clamping a piece to be impacted; an impact assembly, which is suitable for moving toward the piece to be impacted to impact the piece to be impacted, and the impact assembly includes a force sensor and an impact head, the impact head is installed at one end of the force sensor facing the piece to be impacted, the end of the impact head facing the piece to be impacted is an impact end face, and the angle between the straight line in which the impact head moves toward the piece to be impacted and the impact end face is an acute angle.
[0006] According to the collision test device of the embodiment of the utility model, it includes a clamping assembly and an impact assembly. The impact head of the impact assembly is used to impact the part to be impacted. By setting the angle between the straight line in which the impact head moves toward the part to be impacted and the impact end face to be an acute angle, the impact head can impact the weak point of the part to be impacted to better simulate the collision condition of the whole vehicle, thereby being closer to the actual collision condition.
[0007] According to some embodiments of the present invention, a plurality of the impact heads are provided, and the impact end faces of at least two of the plurality of impact heads are not parallel.
[0008] According to some embodiments of the present invention, the impact end faces of two of the plurality of impact heads are respectively a first impact end face and a second impact end face, and an area of the first impact end face is greater than an area of the second impact end face.
[0009] According to some embodiments of the present utility model, the impact assembly further includes a connecting plate and an energy absorption box, one end of the energy absorption box is detachably connected to the connecting plate, and the other end of the energy absorption box is detachably connected to the force sensor.
[0010] According to some embodiments of the utility model, a left mounting plate and a right mounting plate of the energy absorption box are respectively provided at both ends of the energy absorption box, a left mounting plate and a right mounting plate of the force sensor are respectively provided at both ends of the force sensor, the impact assembly also includes an impact head mounting plate, the impact head is mounted on the impact head mounting plate, the left mounting plate of the energy absorption box is detachably connected to the connecting plate, the right mounting plate of the energy absorption box is detachably connected to the left mounting plate of the force sensor, and the right mounting plate of the force sensor is detachably connected to the impact head mounting plate.
[0011] According to some embodiments of the present utility model, the left mounting plate of the energy absorption box is welded to one end of the energy absorption box, and the right mounting plate of the energy absorption box is welded to the other end of the energy absorption box.
[0012] According to some embodiments of the present utility model, the impact assembly further includes an impact trolley, and the connecting plate is detachably mounted on the impact trolley.
[0013] According to some embodiments of the present invention, the force sensor is a six-axis force sensor.
[0014] According to some embodiments of the present invention, the clamping assembly includes a base plate and a first clamping member and a second clamping member detachably mounted on the base plate, and the first clamping member and the second clamping member are respectively clamped at two ends of the member to be impacted.
[0015] According to some embodiments of the utility model, the first clamping member has a groove opening toward the impact assembly, and one end of the piece to be impacted is mounted in the groove; the second clamping member includes a detachably connected clamping seat and a clamping plate, and the other end of the piece to be impacted is clamped between the clamping seat and the clamping plate.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0018] Figure 1 is a schematic diagram of a collision test device according to an embodiment of the utility model;
[0019] Figure 2 yes Figure 1 A schematic diagram of another angle of the collision test device;
[0020] Figure 3 is a schematic diagram of a clamping assembly according to an embodiment of the utility model;
[0021] Figure 4 yes Figure 3 A side view of the clamping assembly in FIG.
[0022] Figure 5 yes Figure 3 A side view of the clamping assembly in another direction;
[0023] Figure 6 is a schematic diagram of a clamping assembly clamping a workpiece to be impacted according to an embodiment of the utility model;
[0024] Figure 7 yes Figure 6 An exploded view of the clamping assembly clamping the part to be impacted.
[0025] Reference numerals:
[0026] 100. Collision test device;
[0027] 10. Clamping assembly; 11. Base plate; 12. First clamping member; 121. Groove; 122. First clamping plate; 123. Second clamping plate; 124. First back plate; 13. Second clamping member; 131. Clamping seat; 132. Clamping plate; 133. Second cushion block;
[0028] 20. Impact assembly; 21. Connecting plate; 31. Left mounting plate of energy absorption box; 32. Energy absorption box; 33. Right mounting plate of energy absorption box; 41. Left mounting plate of force sensor; 42. Force sensor; 43. Right mounting plate of force sensor; 51. Mounting plate of impact head; 52. Impact head; 521. Impact end face; 522. First impact end face; 523. Second impact end face;
[0029] 6. Parts to be impacted. DETAILED DESCRIPTION
[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0033] Reference below Figure 1-Figure 7 A collision test device 100 according to an embodiment of the present invention is described.
[0034] Reference Figure 1-Figure 7 The collision test device 100 according to the embodiment of the utility model is used for collision testing in the vehicle development stage. The collision test device 100 includes a clamping assembly 10 and an impact assembly 20. The clamping assembly 10 is suitable for clamping a part to be impacted 6. The part to be impacted 6 can be an A-pillar, a B-pillar or a C-pillar, etc. Preferably, the part to be impacted 6 is a B-pillar.
[0035] The impact assembly 20 is suitable for moving toward the piece to be impacted 6 to impact the piece to be impacted 6. The impact assembly 20 includes a force sensor 42 and an impact head 52. The impact head 52 is installed at one end of the force sensor 42 facing the piece to be impacted 6. The force sensor 42 can be used to record the change of force during the impact process.
[0036] The end of the impact head 52 facing the part to be impacted 6 is an impact end face 521, and the angle between the straight line in which the impact head 52 moves toward the part to be impacted 6 and the impact end face 521 is an acute angle, so that a sharp impact point can be formed at the end of the impact head 52. When the impact assembly 20 impacts the part to be impacted 6, the end of the impact head 52 impacts the part to be impacted 6 first, so as to achieve the purpose of verifying the collision performance in advance by relying on the deformation of the part to be impacted 6 after the collision test, thereby improving the accuracy of the simulation results in the vehicle component design stage.
[0037] The weak points of the part to be impacted 6 are obtained through simulation analysis of the vehicle. The position of the impact head 52 and the angle between the straight line in which the impact head 52 moves toward the part to be impacted 6 and the impact end face 521 are set according to the weak points, so that when the impact head 52 impacts the part to be impacted 6, the collision condition of the entire vehicle can be better simulated.
[0038] According to the collision test device 100 of the embodiment of the utility model, it includes a clamping assembly 10 and an impact assembly 20. The impact head 52 of the impact assembly 20 is used to impact the part to be impacted 6. By setting the angle between the straight line in which the impact head 52 moves toward the part to be impacted 6 and the impact end face 521 to be an acute angle, the impact head 52 can impact the weak point of the part to be impacted 6 to better simulate the collision condition of the entire vehicle, thereby being closer to the actual collision condition.
[0039] According to some embodiments of the present invention, referring to Figure 3-Figure 5 There are multiple impact heads 52, and the impact end faces 521 of at least two impact heads 52 among the multiple impact heads 52 are not parallel to each other, so as to better match the weak points of the part 6 to be impacted, so as to better simulate the collision condition of the whole vehicle.
[0040] The multiple impact end faces 521 of the multiple impact heads 52 can match the profile of the part to be impacted 6. When the impact assembly 20 impacts the part to be impacted 6, the multiple impact end faces 521 can guide the part to be impacted 6 to deform along the extension direction of the multiple impact end faces 521, so as to better simulate the collision of the entire vehicle.
[0041] According to some embodiments of the present invention, referring to Figure 3-Figure 5 The impact end faces 521 of two impact heads 52 of the plurality of impact heads 52 are respectively the first impact end face 522 and the second impact end face 523, and the area of the first impact end face 522 is larger than the area of the second impact end face 523. The first impact end face 522 and the second impact end face 523 have different areas in order to better match the profile of the part to be impacted 6, so that when the impact assembly 20 impacts the part to be impacted 6, the collision condition of the whole vehicle can be better simulated.
[0042] According to some embodiments of the present invention, referring to Figure 1-Figure 2The impact assembly 20 further includes a connecting plate 21 and an energy absorbing box 32. One end of the energy absorbing box 32 is detachably connected to the connecting plate 21, so that the energy absorbing box 32 can be easily removed from the connecting plate 21. For example, the energy absorbing box 32 can be installed on the connecting plate 21 by bolts. The other end of the energy absorbing box 32 is detachably connected to the force sensor 42, so that the energy absorbing box 32 can be easily removed from the force sensor 42. For example, the energy absorbing box 32 can be installed on the force sensor 42 by bolts.
[0043] When the impact assembly 20 impacts the part to be impacted 6, on the one hand, the energy absorption box 32 will absorb energy and collapse. The energy absorption box 32 can be used to protect the force sensor 42 to prevent the force sensor 42 from being damaged during the collision. On the other hand, the energy absorption box 32 will absorb energy and collapse. The two ends of the energy absorption box 32 are respectively detachably connected to the connecting plate 21 and the force sensor 42, which can facilitate the replacement of the energy absorption box 32.
[0044] According to some embodiments of the present invention, referring to Figure 3-Figure 5 The two ends of the energy absorption box 32 are respectively provided with a left energy absorption box mounting plate 31 and a right energy absorption box mounting plate 33, the two ends of the force sensor 42 are respectively provided with a left force sensor mounting plate 41 and a right force sensor mounting plate 43, the impact assembly 20 also includes an impact head mounting plate 51, and the impact head 52 is mounted on the impact head mounting plate 51.
[0045] The left mounting plate 31 of the energy absorption box is detachably connected to the connecting plate 21, and the left mounting plate 31 of the energy absorption box can be detached from the connecting plate 21; for example, the left mounting plate 31 of the energy absorption box and the connecting plate 21 can be connected by bolts. The right mounting plate 33 of the energy absorption box and the left mounting plate 41 of the force sensor can be detached from the right mounting plate 33 of the energy absorption box and the left mounting plate 41 of the force sensor; for example, the right mounting plate 33 of the energy absorption box and the left mounting plate 41 of the force sensor can be connected by bolts. The right mounting plate 43 of the force sensor and the impact head mounting plate 51 are detachably connected, and the right mounting plate 43 of the force sensor and the impact head mounting plate 51 can be detached; for example, the right mounting plate 43 of the force sensor and the impact head mounting plate 51 can be connected by bolts.
[0046] When the impact assembly 20 impacts the part to be impacted 6, the parts on the impact assembly 20 may be damaged. The left mounting plate 31 of the energy absorption box and the connecting plate 21 are detachably connected, the right mounting plate 33 of the energy absorption box and the left mounting plate 41 of the force sensor are detachably connected, and the right mounting plate 43 of the force sensor and the impact head mounting plate 51 are detachably connected, so that the damaged parts can be easily replaced.
[0047] In the direction from the energy absorption box 32 toward the impact head 52, the connecting plate 21, the left energy absorption box mounting plate 31, the energy absorption box 32, the right energy absorption box mounting plate 33, the left force sensor mounting plate 41, the force sensor 42, the right force sensor mounting plate 43, the impact head mounting plate 51 and the impact head 52 are arranged in sequence.
[0048] According to some embodiments of the present invention, referring to Figure 3-Figure 5 The left mounting plate 31 of the energy absorbing box is welded to one end of the energy absorbing box 32, and the right mounting plate 33 of the energy absorbing box is welded to the other end of the energy absorbing box 32, which can ensure the reliability and stability of the connection between the energy absorbing box 32 and the left mounting plate 31 and the right mounting plate 33 of the energy absorbing box. The two ends of the energy absorbing box 32 are respectively fixed to the left mounting plate 31 and the right mounting plate 33 of the energy absorbing box by welding. When the impact assembly 20 impacts the to-be-impacted part 6, the energy absorbing box 32 will absorb energy and collapse, which can prevent the energy absorbing box 32 from falling off from the left mounting plate 31 and the right mounting plate 33 of the energy absorbing box.
[0049] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The impact assembly 20 also includes an impact trolley, and a connecting plate 21 is detachably mounted on the impact trolley. The connecting plate 21 can be removed from the impact trolley. For example, the connecting plate 21 can be mounted on the impact trolley by bolts. When the impact assembly 20 impacts the part to be impacted 6, the connecting plate 21 may be deformed by force. The connecting plate 21 is detachably connected to the impact trolley, which can improve the efficiency of removing the connecting plate 21 from the impact trolley and facilitate the replacement or maintenance of the connecting plate 21.
[0050] According to some embodiments of the present invention, referring to Figure 1-Figure 5 The force sensor 42 is a six-axis force sensor, which can collect forces in the three directions of X, Y, and Z and bending moments in the three directions of X, Y, and Z. When the impact assembly 20 impacts the part to be impacted 6, the six-axis force sensor can collect forces in the three directions of X, Y, and Z and bending moments in the three directions of X, Y, and Z of the part to be impacted 6 during the impact process, and record the changes in the forces during the impact process.
[0051] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 6-Figure 7 The clamping assembly 10 includes a base plate 11, a first clamping member 12 and a second clamping member 13. The first clamping member 12 and the second clamping member 13 are detachably mounted on the base plate 11. The first clamping member 12 and the second clamping member 13 are respectively clamped at both ends of the member to be impacted 6, which can facilitate the fixation of the member to be impacted 6. For example, the first clamping member 12 and the second clamping member 13 can be fixed to the base plate 11 by bolts.
[0052] The clamping assembly 10 can be used to clamp different types of parts to be impacted 6. The first clamping member 12 and the second clamping member 13 are detachably mounted on the base plate 11, which can facilitate the removal and installation of different types of first clamping members 12 and second clamping members 13. When the impact assembly 20 impacts the part to be impacted 6, the first clamping member 12 and the second clamping member 13 may be deformed by force. The first clamping member 12 and the second clamping member 13 are detachably connected to the base plate 11, which can facilitate the removal of the first clamping member 12 and the second clamping member 13 from the base plate 11, and can facilitate the replacement or repair of the first clamping member 12 and the second clamping member 13.
[0053] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 6-Figure 7 The first clamping member 12 has a groove 121, the opening of the groove 121 faces the impact assembly 20, and one end of the to-be-impacted member 6 is mounted in the groove 121. The first clamping member 12 may include a first clamping plate 122, a second clamping plate 123, and a first back plate 124, the first clamping plate 122 and the second clamping plate 123 are arranged in parallel on the first back plate 124, the first back plate 124 is detachably mounted on the base plate 11, and the first clamping plate 122, the second clamping plate 123, and the first back plate 124 define the above-mentioned groove 121, and the openings of the first back plate 124 and the groove 121 are arranged oppositely.
[0054] The groove 121 also has a first opening and a second opening, which are respectively arranged at two ends of the groove 121, and the first opening faces the second clamping member 13. One end of the impact member 6 is mounted between the first clamping plate 122 and the second clamping plate 123 and extends out from the second opening.
[0055] The second clamping member 13 includes a clamping seat 131 and a clamping plate 132, which are detachably connected. The other end of the member to be impacted 6 is clamped between the clamping seat 131 and the clamping plate 132. One end of the member to be impacted 6 can be placed in the clamping seat 131 first, and then the clamping plate 132 can be installed on the clamping seat 131 to prevent the member to be impacted 6 from falling off the clamping assembly 10. For example, the clamping seat 131 and the clamping plate 132 can be fixedly connected by bolts.
[0056] Since one end of the part to be impacted 6 is mounted in the groove 121 of the first clamping member 12, and the other end of the part to be impacted 6 is fixed between the clamping seat 131 and the clamping plate 132, when the impact assembly 20 impacts the part to be impacted 6, the part to be impacted 6 can be deformed and rotated in the impact direction, thereby being closer to the actual collision condition.
[0057] In one example, a first cushion block may be disposed in the groove 121, a second cushion block 133 may be disposed in the clamping seat 131, one end of the member to be impacted 6 is located on the first cushion block, and the other end of the member to be impacted 6 is located on the second cushion block 133, so that a spacing space is reserved between the member to be impacted 6 and the substrate 11; when the impact assembly 20 impacts the member to be impacted 6, the member to be impacted 6 may be deformed into the spacing space. The size of the spacing space between the member to be impacted 6 and the substrate 11 may be determined according to specific test requirements.
[0058] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0059] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A collision test device, characterized in that: include: A clamping assembly, wherein the clamping assembly is suitable for clamping a piece to be impacted; An impact assembly, wherein the impact assembly is suitable for moving toward the piece to be impacted to impact the piece to be impacted, and the impact assembly includes a force sensor and an impact head, wherein the impact head is installed at one end of the force sensor facing the piece to be impacted, the end of the impact head facing the piece to be impacted is an impact end face, and the angle between the straight line in which the impact head moves toward the piece to be impacted and the impact end face is an acute angle.
2. The collision test device according to claim 1, characterized in that: A plurality of the impact heads are provided, and the impact end surfaces of at least two of the plurality of impact heads are not parallel to each other.
3. The collision test device according to claim 2, characterized in that: The impact end faces of two of the plurality of impact heads are respectively a first impact end face and a second impact end face, and an area of the first impact end face is greater than an area of the second impact end face.
4. The collision test device according to claim 1, characterized in that: The impact assembly further comprises a connecting plate and an energy absorption box, one end of the energy absorption box is detachably connected to the connecting plate, and the other end of the energy absorption box is detachably connected to the force sensor.
5. The collision test device according to claim 4, characterized in that: The two ends of the energy absorption box are respectively provided with a left energy absorption box mounting plate and a right energy absorption box mounting plate, the two ends of the force sensor are respectively provided with a left force sensor mounting plate and a right force sensor mounting plate, the impact assembly also includes an impact head mounting plate, the impact head is mounted on the impact head mounting plate, The left mounting plate of the energy absorption box is detachably connected to the connecting plate, the right mounting plate of the energy absorption box is detachably connected to the left mounting plate of the force sensor, and the right mounting plate of the force sensor is detachably connected to the impact head mounting plate.
6. The collision test device according to claim 5, characterized in that: The left mounting plate of the energy absorption box is welded to one end of the energy absorption box, and the right mounting plate of the energy absorption box is welded to the other end of the energy absorption box.
7. The collision test device according to claim 4, characterized in that: The impact assembly also includes an impact trolley, and the connecting plate is detachably mounted on the impact trolley.
8. The collision test device according to claim 1, characterized in that: The force sensor is a six-axis force sensor.
9. The collision test device according to claim 1, characterized in that: The clamping assembly comprises a base plate and a first clamping member and a second clamping member detachably mounted on the base plate. The first clamping member and the second clamping member are respectively clamped at two ends of the member to be impacted.
10. The collision test device according to claim 9, characterized in that: The first clamping member has a groove opening toward the impact assembly, and one end of the member to be impacted is mounted in the groove; The second clamping member comprises a clamping seat and a clamping plate which are detachably connected, and the other end of the member to be impacted is clamped between the clamping seat and the clamping plate.