CN220552590U - Automobile side door collision experiment bench - Google Patents

Abstract

The utility model discloses an automobile side door collision experiment bench which comprises a B-pillar simulation component, a C-pillar bottom simulation component and a bottom plate, wherein the B-pillar simulation component, the C-pillar bottom simulation component and the C-pillar simulation component are all arranged on the bottom plate and are sequentially arranged at intervals in a first direction. The B column simulation component comprises a mounting piece and a supporting piece which are arranged at intervals in the second direction, a buffer piece is arranged between the mounting piece and the supporting piece, and a first mounting part for fixedly connecting with a hinge part of the automobile side door is arranged on the mounting piece; the C column simulation component is provided with a lock body part which is matched with a door lock of the automobile side door. When the experiment bench is used, the supporting effect of the vehicle body on the vehicle door can be simulated, the vehicle door is impacted through the barrier simulation device, and therefore the conditions of deformation of the vehicle door, door lock movement and relative movement of the vehicle door and surrounding supporting structures when the side door of the vehicle collides are simulated.

Description

Automobile side door collision experiment bench

Technical Field

The utility model relates to the technical field of automobile testing, in particular to an automobile side door collision experiment bench.

Background

At present, in an automobile side collision accident, a good automobile structure safety design ensures that a rear automobile door cannot be opened in the collision process, so that rear passengers cannot drop out of an automobile, and the risk of injury to the rear passengers in the collision accident is reduced. The national standard also has clear limit regulations on the opening condition of the vehicle door under the side collision working condition, and the regulation of the clause 4.3.1 of GB20071-2006 (50 km/h side collision working condition): the door must not be opened during the test.

In early automobile structural design, the traditional design verification method is a whole automobile collision test method. The whole car collision test method is to use a real car to carry out a 50 km/h side collision test, and can accurately verify whether the rear car door can be opened in collision. Because a whole vehicle can only be used once in the whole vehicle collision test, the whole vehicle collision test cost is high, and the period for manufacturing the test vehicle is long. Besides the whole car crash test, the side trolley crash test method can also be used for verifying the opening condition of the rear car door. In a side car crash test, parts such as a car body, a car door, a seat and the like which are cut are usually mounted on a car moving along a track, and the car impacts a cellular aluminum barrier fixed on a rigid wall at a specific speed, so that the side crash working condition of the whole car is simulated. The side trolley collision test does not need to damage the whole vehicle, the cost is reduced compared with the whole vehicle test, and the precision is higher. However, the side trolley crash test involves the transportation, storage and cutting of large-volume parts such as white bodies, and has high cost and long period.

Recently, along with the continuous development of computer technology, a simulation analysis method is increasingly applied to the research of the problem of opening the rear door under the side collision working condition, and the simulation analysis method is to use a CAE simulation technology to carry out numerical simulation on the side collision working condition of the whole vehicle so as to examine the opening condition of the rear door. The simulation analysis method has the advantages of high calculation speed, low research cost and the like; however, the drawbacks of the simulation analysis method are also obvious, and the accuracy of material property input in the simulation model and the numerical simulation accuracy on the complex back door component can greatly influence the final calculation result.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, when the reliability of the automobile side door is tested by adopting a real-vehicle or side-face trolley collision test, the cost is high and the experiment period is long; and the adoption of the simulation analysis method depends on the accuracy of material attribute data, so that the technical problem of greatly influencing the simulation result is solved due to data misalignment.

In order to solve the technical problems, the embodiment of the utility model discloses an automobile side door collision experiment bench which comprises a B-pillar simulation component, a C-pillar bottom simulation component and a bottom plate, wherein the B-pillar simulation component, the C-pillar bottom simulation component and the C-pillar simulation component are all arranged on the bottom plate and are sequentially arranged at intervals in a first direction.

The B column simulation component comprises a mounting piece and a supporting piece which are arranged at intervals in a second direction, a buffer piece is arranged between the mounting piece and the supporting piece, a first mounting part is arranged on the mounting piece, and the first mounting part is used for fixedly connecting with a hinge part of the automobile side door; the first direction and the second direction are mutually perpendicular and are respectively perpendicular to the thickness direction of the bottom plate; the C column simulation component is provided with a lock body part which is matched with a door lock of the automobile side door; the C column bottom simulation part is abutted against the lower side of the inner plate of the side door of the automobile.

By adopting the technical scheme, when the automobile side door collision experiment bench is used, taking the rear door of an automobile as an example, the hinge seat of the automobile door is connected with the first installation part on the installation part, the door lock of the automobile door is matched with the lock body part on the C column simulation part, the C column bottom simulation part is abutted to the lower side of the automobile door inner plate, the supporting effect of the automobile body on the automobile door is simulated, and then the automobile door is collided according to the preset speed through the barrier simulation device, so that the automobile side door is simulated to deform in the side collision process of the metal plate of the automobile door, the door lock moves and the relative movement condition of the automobile door and surrounding supporting structures, and the automobile side door collision experiment bench has the advantages of good repeatability and high precision. Compared with the traditional whole vehicle test method and the traditional trolley test method, the test bench can greatly reduce test cost and test period; compared with the existing advanced simulation analysis method, the method has no accuracy of material attribute input in a simulation model and limitation of numerical simulation precision of complex back door components, is closer to the situation in actual collision working conditions, and has higher verification precision.

In addition, this kind of B post simulation part includes installed part and support piece, and sets up the bolster between installed part and support piece, utilizes the bolster's cushion force to simulate the supporting role of sunroof crossbeam and seat crossbeam to the B post on real car to press close to the condition of real car structure B post when receiving the collision more, improve test accuracy.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, wherein the mounting piece comprises a first connecting plate, a second connecting plate and a third connecting plate which are sequentially arranged at intervals along the thickness direction of the bottom plate, hinge mounting plates are arranged between the first connecting plate and the second connecting plate and between the second connecting plate and the third connecting plate and are fixedly connected through the hinge mounting plates, the third connecting plate is positioned at one side close to the bottom plate relative to the second connecting plate, and the first connecting plate is positioned at one side far away from the bottom plate relative to the second connecting plate.

Wherein, first installation department is: a plurality of hinge mounting holes provided on the two hinge mounting plates.

By adopting the technical scheme, when a vehicle door collision experiment is simulated, the two hinge seats of the vehicle door are assembled with the hinge mounting holes on the two hinge mounting plates respectively, and the connection relationship between the vehicle door and the vehicle body support column is simulated, so that the vehicle door is rotatably connected with the mounting piece. And, the installed part still includes first connecting plate, second connecting plate and third connecting plate, and two hinge mounting panels all set up between two adjacent connecting plates, to the door that has different articulated seat structures, can adjust the structure of hinge mounting panel make it with the articulated seat looks adaptation of door, to the simulation of different motorcycle types, can make it can simulate not unidimensional automobile body through the structure of adjusting the connecting plate, and then widened the suitability of this kind of experiment bench.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, wherein the supporting piece comprises a first supporting plate which extends along the thickness direction of the bottom plate and is arranged opposite to the mounting piece at intervals, and a first rib plate which is positioned on one side of the first supporting plate, which is away from the mounting piece, and the first supporting plate and the first rib plate are integrally formed, and the bottoms of the first supporting plate and the first rib plate are fixedly connected with the bottom plate.

By adopting the technical scheme, the first support plate is used for connecting the mounting piece, the first rib plate arranged on one side of the first support plate deviating from the mounting piece can improve the bearing capacity of the first support plate on the impact of the second direction, and then the supportability of the vehicle door by the vehicle body internal structure (namely, the parts such as the sunroof cross beam and the seat cross beam on the real vehicle) is simulated.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, the buffer piece comprises a spring and spring seats arranged at two ends of the spring, and a plurality of spring mounting holes are formed in the corresponding positions of the first support plate and the first connecting plate and/or the third connecting plate and are used for connecting the spring seats.

Springs are arranged between the first support plate and the first connecting plate and/or between the first support plate and the third connecting plate.

By adopting the technical scheme, through setting up a plurality of springs between installed part and first backup pad for the experiment bench is when the test side door collides, and when barrier analogue means impacted the door, the displacement along the second direction (also the width direction of automobile body) can take place for the door in the simulation reality, and the automobile body is when receiving the impact, and the automobile body part inwards takes place the energy-absorbing that slightly collapses, and when barrier analogue means impacted the door, installed part and door received the elastic force of a plurality of springs all the time, thereby simulate skylight crossbeam and seat crossbeam to the supporting role of B post structure and door.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, which further comprises a sliding block, wherein the sliding block is positioned between the third connecting plate and the bottom plate, and a sliding groove extending along the second direction is arranged on the bottom plate and positioned below the third connecting plate.

One end of the sliding block is slidably arranged in the sliding groove, and the other end of the sliding block is rotatably connected with the third connecting plate around an axis parallel to the first direction.

By adopting the technical scheme, the installation piece is connected with the bottom plate in a sliding way along the second direction through the sliding block in a sliding way, so that the B column and the vehicle door are simulated to collapse into the vehicle body when being impacted, and because the vehicle door is generally in the middle of the outer side of the door plate when being impacted, the vehicle door can deform to a certain extent and rotate towards the vehicle body relative to the connecting position of the vehicle body threshold when collapsing into the vehicle, the other end of the sliding block is rotationally connected with the third connecting plate around an axis parallel to the first direction (namely the length direction of the vehicle body) so as to simulate the vehicle door and the B column to rotate relative to the connecting position of the vehicle body threshold when being impacted.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, which further comprises a transverse limiting part, wherein the transverse limiting part is arranged between the supporting part and the mounting part, one end of the transverse limiting part is connected with the first supporting plate of the supporting part, the other end of the transverse limiting part is connected with the mounting part, and the transverse limiting part can be folded along the second direction.

By adopting the technical scheme, through setting up horizontal limiting component between support piece and installed part, when door and installed part are receiving the striking, horizontal limiting component is folding along the second direction to can guide installed part and door and take place the displacement towards first backup pad along the second direction, avoid the installed part to take place the removal of other directions.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, wherein the transverse limiting part is arranged as follows: and the four connecting plates are sequentially hinged along the second direction, wherein the connecting plates positioned at two sides extend along the thickness direction of the bottom plate, and the two connecting plates positioned in the middle extend along the direction oblique to the thickness direction of the bottom plate.

The first support plate and the first connecting plate and/or the second connecting plate of the mounting piece are provided with a plurality of connecting plate mounting holes at corresponding positions, and the plurality of connecting plate mounting holes are used for connecting corresponding connecting plates of the transverse limiting component.

A transverse limiting component is arranged between the first supporting plate and the first connecting plate and/or between the first supporting plate and the second connecting plate.

By adopting the technical scheme, because the four connecting plates are hinged in sequence along the second direction (namely the width direction of the car body), when the car door and the mounting piece are impacted, the four connecting plates can rotate from the mutually hinged parts so as to be mutually close to each other and fold together, and the four connecting plates cannot displace in other directions, so that the mounting piece and the first supporting plate are prevented from being staggered in the second direction.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, wherein the C-column simulation component comprises a second supporting plate extending along the thickness direction of the bottom plate and a second rib plate positioned on one side of the second supporting plate, which is close to the first supporting plate, along the second direction, and the second supporting plate and the second rib plate are integrally formed, and the bottoms of the second supporting plate and the second rib plate are fixedly connected with the bottom plate.

By adopting the technical scheme, when the car door collision test is carried out, the second support plate can simulate the C column structure of the car body, thereby playing a role in fixing the car door, and the second support plate is provided with the second rib plate at the position, which is close to the first support plate, along the second direction, and the bearing capacity of the second support plate on the impact of the second direction can be improved.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, wherein the lock body is a U-shaped pipe, two round holes are arranged on the second supporting plate at least along the thickness direction of the bottom plate at intervals, the two round holes extend along the first direction and penetrate through the second supporting plate, any one round hole is matched with the end part of the U-shaped pipe, and the U-shaped pipe is arranged on the second supporting plate through the two round holes.

By adopting the technical scheme, when the car door collision test is carried out, the U-shaped pipe can be matched with the lock body structure on the car door, so that whether the lock body of the car door breaks away from the U-shaped pipe under the impact can be verified, and the reliability of the car door in the collision can be verified.

The embodiment of the utility model also discloses an automobile side door collision experiment bench, wherein the C column bottom simulation part comprises a third support plate extending along the thickness direction of the bottom plate, the top of the third support plate extends upwards from one side close to the first support plate to the other side along the direction inclined to the thickness direction of the bottom plate, the inclined edge of the top of the third support plate is in an inward concave arc shape, and at least part of the other side of the top of the third support plate extends along the horizontal direction.

The top of the third supporting plate forms a step surface along the second direction, and the top surface close to the mounting piece is higher than the top surface deviating from the mounting piece, and the bottom of the third supporting plate is fixedly connected with the bottom plate.

By adopting the technical scheme, through the third supporting plate, the structure of the vehicle body at the joint of the C column and the threshold can be simulated, so that the lower part of the vehicle door is supported, and further, the top of the second supporting plate forms a step surface along the second direction to be matched with the inner plate structure of the vehicle door, so that the mounting position of the vehicle door on a real vehicle is more accurate.

The beneficial effects of the utility model are as follows:

the utility model discloses an automobile side door collision experiment bench which comprises a B-pillar simulation component, a C-pillar bottom simulation component and a bottom plate, wherein the B-pillar simulation component, the C-pillar bottom simulation component and the C-pillar simulation component are all arranged on the bottom plate and are sequentially arranged at intervals in a first direction. The B column simulation component comprises a mounting piece and a supporting piece which are arranged at intervals in a second direction, a buffer piece is arranged between the mounting piece and the supporting piece, a first mounting part is arranged on the mounting piece, and the first mounting part is used for fixedly connecting with a hinge part of the automobile side door; the C column simulation component is provided with a lock body part which is matched with a door lock of the automobile side door. When the automobile side door collision experiment bench is used, the supporting effect of the automobile body on the automobile door can be simulated, the automobile door is collided according to the preset speed through the barrier simulation device, so that the automobile side door is simulated in the side collision process in the state of deformation of the automobile door sheet metal, door lock movement and relative movement of the automobile door and surrounding supporting structures, and the automobile side door collision experiment bench has the advantages of being good in repeatability and high in accuracy.

And be provided with the horizontal spacing part that can follow the second direction folding between mounting and support piece, when door and mounting are receiving the striking, horizontal spacing part is folding along the second direction to can guide mounting and door and take place the displacement towards first backup pad along the second direction, avoid the mounting to take place the removal of other directions, more accurately test the door and take place the motion along the second direction (also the width direction of automobile body) when being collided.

Drawings

Fig. 1 is an assembly schematic diagram of an automobile side door collision experiment bench according to an embodiment of the utility model;

fig. 2 is a schematic structural view of an installation member of an automobile side door collision experiment bench according to an embodiment of the utility model, as viewed along a second direction;

fig. 3 is a schematic structural view of a mounting member of a vehicle side door collision experiment bench according to an embodiment of the utility model, as viewed along a first direction;

fig. 4 is a schematic structural view of a support member of a vehicle side door collision experiment bench according to an embodiment of the utility model;

fig. 5 is a schematic structural view of a lateral limiting component of a side door collision experiment bench according to an embodiment of the utility model;

fig. 6 is a schematic structural diagram of a buffer member of a side door collision experiment bench according to an embodiment of the utility model;

Fig. 7 is a schematic structural diagram of a C-pillar simulation component of a vehicle side door collision experiment bench according to an embodiment of the utility model;

fig. 8 is a schematic structural diagram of a C-pillar bottom simulation component of a vehicle side door collision experiment bench according to an embodiment of the utility model;

fig. 9 is a schematic structural diagram of a bottom plate of a vehicle side door collision experiment bench according to an embodiment of the utility model;

fig. 10 is an assembly schematic diagram of a vehicle side door collision experiment bench and a vehicle door according to an embodiment of the utility model;

fig. 11 is another assembly schematic diagram of a side door collision experiment bench and a vehicle door according to an embodiment of the utility model.

Reference numerals illustrate:

10. automobile side door collision experiment bench;

110. a B-pillar simulation component;

111. a mounting member;

1110. a first connection plate; 1111. a second connecting plate; 1112. a third connecting plate; 1113. a hinge mounting plate;

1114. a hinge mounting hole; 1115. A spring mounting hole; 1116. A connecting plate mounting hole;

112. a support; 1120. A first support plate; 1121. A first rib;

113. a buffer member; 1130. A spring; 1131. A spring seat;

114. a slide block;

120. a C-pillar simulation component;

121. a second support plate; 122. a second rib; 123. a lock body portion; 1230. a U-shaped tube;

130. A C column bottom simulation component; 131. a third support plate;

140. a bottom plate;

141. a chute;

150. a lateral limiting member; 151. a connecting plate;

20. a vehicle door;

30. barrier simulation means;

y, first direction;

x, second direction.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

In order to solve the problems that the cost is high and the experimental period is long when the reliability of the automobile side door is tested by adopting a real automobile or side trolley collision test; the embodiment of the utility model discloses an automobile side door collision experiment bench 10, which comprises a B-pillar simulation component 110, a C-pillar simulation component 120, a C-pillar bottom simulation component 130 and a bottom plate 140, wherein the B-pillar simulation component 110, the C-pillar bottom simulation component 130 and the C-pillar simulation component 120 are all arranged on the bottom plate 140 and are sequentially arranged at intervals in a first direction Y.

Specifically, the B-pillar simulation component 110 includes a mounting member 111 and a supporting member 112 that are disposed at intervals in the second direction X, a buffer member 113 is disposed between the mounting member 111 and the supporting member 112, a first mounting portion is disposed on the mounting member 111, and the first mounting portion is used for fixedly connecting with a hinge portion of a side door of an automobile; the first direction Y and the second direction X are perpendicular to each other and are perpendicular to the thickness direction of the bottom plate 140, respectively; the C column simulation component 120 is provided with a lock body part 123, and the lock body part 123 is matched with a door lock of the automobile side door; the C-pillar bottom simulation member 130 abuts against the inner panel underside of the side door of the automobile.

More specifically, as shown in fig. 10 and 11, when the automobile side door collision experiment bench 10 is used, taking a rear door of an automobile as an example, a hinge seat of the door 20 is connected with a first mounting part on a mounting part 111, a door lock of the door 20 is matched with a lock body part 123 on a C-pillar simulation part 120, and a C-pillar bottom simulation part 130 is abutted against the lower side of an inner plate of the door 20 to simulate the supporting effect of the automobile body on the door 20, and then the door 20 is collided at a preset speed through a barrier simulation device 30, so that the sheet metal deformation of the door 20, the door lock movement and the relative movement condition of the door 20 and surrounding supporting structures of the automobile side door in the side collision process are simulated. Compared with the traditional whole vehicle test method and the traditional trolley test method, the automobile side door collision test bench 10 can greatly reduce test cost and test period; compared with the existing advanced simulation analysis method, the method has no accuracy of material attribute input in a simulation model and limitation of numerical simulation precision of complex back door components, is closer to the situation in actual collision working conditions, and has higher verification precision.

More specifically, the B-pillar simulation component 110 includes a mounting member 111 and a supporting member 112, and a buffer member 113 is disposed between the mounting member 111 and the supporting member 112, and the supporting effect of the sunroof cross beam and the seat cross beam on the B-pillar is simulated by using the buffer force of the buffer member 113, so that the B-pillar is more close to the situation of the real vehicle structure when the B-pillar is impacted, and the testing accuracy is improved.

Further, the embodiment of the present utility model also discloses an automobile side door collision experiment bench 10, as shown in fig. 2 and 3, the mounting member 111 includes a first connection plate 1110, a second connection plate 1111 and a third connection plate 1112 sequentially arranged at intervals along the thickness direction of the bottom plate 140, and hinge mounting plates 1113 are respectively arranged between the first connection plate 1110 and the second connection plate 1111 and between the second connection plate 1111 and the third connection plate 1112, and fixedly connected through the hinge mounting plates 1113, the third connection plate 1112 is located at a side close to the bottom plate 140 with respect to the second connection plate 1111, and the first connection plate 1110 is located at a side far from the bottom plate 140 with respect to the second connection plate 1111.

Specifically, as shown in fig. 2, the first mounting portion is: a plurality of hinge mounting holes 1114 provided on the two hinge mounting plates 1113. In the present embodiment, three hinge mounting holes 1114 are provided in the hinge mounting plate 1113, however, the number of the hinge mounting holes 1114 may be designed according to the specific structure of the hinge mounting seat on the vehicle door 20, and this embodiment is not limited thereto.

More specifically, as shown in fig. 3, two hinge mounting plates 1113 between the first connection plate 1110 and the second connection plate 1111, and two hinge mounting plates 1113 between the second connection plate 1111 and the third connection plate 1112 are provided in the second direction X, and the adjacent connection plates are sandwiched therebetween and fixed by bolting. Of course, regarding the connection manner of the connection plate and the hinge mounting plate 1113, those skilled in the art can design according to the actual situation and specific requirements, and this embodiment is not limited in particular.

More specifically, in the simulated door collision experiment, the two hinge seats of the door 20 are respectively assembled with the plurality of hinge mounting holes 1114 of the two hinge mounting plates 1113, and the connection relationship of the door 20 to the body support pillar is simulated, so that the door 20 is rotatably connected to the mounting member 111. And, the mounting 111 still includes first connecting plate 1110, second connecting plate 1111 and third connecting plate 1112, and two hinge mounting plates 1113 all set up between two adjacent connecting plates, and to the door 20 that has different articulated seat structures, the structure that can adjust hinge mounting plate 1113 makes it and the articulated seat looks adaptation of door 20, to the simulation of different motorcycle types, can make it can simulate not unidimensional automobile body through adjusting the structure of connecting plate, and then widened the suitability of this kind of car side door collision experiment bench 10.

Still further, as shown in fig. 4, the embodiment of the utility model further discloses an automobile side door collision experiment bench 10, wherein the supporting member 112 comprises a first supporting plate 1120 extending along the thickness direction of the bottom plate 140 and arranged opposite to the mounting member 111 at intervals, and a first rib plate 1121 positioned on one side of the first supporting plate 1120 away from the mounting member 111, the first supporting plate 1120 and the first rib plate 1121 are integrally formed, and the bottoms of the first supporting plate 1120 and the first rib plate 1121 are fixedly connected with the bottom plate 140.

Specifically, the first support plate 1120 is used for connecting the mounting member 111, and the first rib 1121 disposed on one side of the first support plate 1120 away from the mounting member 111 can improve the bearing capability of the first support plate 1120 on the impact in the second direction X, so as to simulate the supportability of the vehicle body internal structure (i.e., the components such as the sunroof beam and the seat beam on the real vehicle) on the vehicle door 20.

More specifically, in this embodiment, the bottoms of the first support plate 1120 and the first rib 1121 and the corresponding positions on the bottom plate 140 may be connected by welding, riveting, screwing or clamping, and the like, which are commonly used in the art, and those skilled in the art may design according to the actual situation and specific requirements, and this embodiment is not limited in particular.

Further, as shown in fig. 1 and 6, the embodiment of the utility model further discloses an automobile side door collision experiment bench 10, the buffer member 113 includes a spring 1130 and spring seats 1131 disposed at two ends of the spring 1130, and the first support plate 1120 and the first connection plate 1110 and/or the third connection plate 1112 are provided with a plurality of spring mounting holes 1115 at corresponding positions, and the plurality of spring mounting holes 1115 are used for connecting the spring seats 1131.

Specifically, in one embodiment, the spring 1130 is disposed between the first support plate 1120 and the first connection plate 1110, and of course, in another embodiment, the spring 1130 is disposed between the first support plate 1120 and the first connection plate 1110 and the third connection plate 1112, and in yet another embodiment, the spring 1130 is disposed between the first support plate 1120 and the third connection plate 1112 only, which can be designed by those skilled in the art according to practical situations and specific requirements, and the present embodiment is not limited specifically.

More specifically, by disposing the plurality of springs 1130 between the mounting member 111 and the first support plate 1120, when the side door collision experiment table 10 of the automobile collides with the side door, when the barrier simulation device 30 collides with the door 20, the door 20 is displaced in the second direction X (i.e., the width direction of the automobile body) for simulating reality, when the automobile body is impacted, the automobile body is slightly collapsed and absorbs energy, and when the barrier simulation device 30 collides with the door 20, the mounting member 111 and the door 20 are always subjected to elastic forces of the plurality of springs 1130, thereby simulating the supporting effect of the sunroof beam and the seat beam on the B-pillar structure and the door 20.

Further, as shown in fig. 1-3, the embodiment of the present utility model further discloses an automobile side door crash experiment bench 10, the automobile side door crash experiment bench 10 further includes a slider 114, the slider 114 is located between the third connecting plate 1112 and the bottom plate 140, the bottom plate 140 is located below the third connecting plate 1112, and a sliding groove 141 extending along the second direction X is provided.

Specifically, one end of the slider 114 is slidably disposed in the chute 141, and the other end is rotatably connected to the third connecting plate 1112 about an axis parallel to the first direction Y.

More specifically, the mounting member 111 is slidably connected to the sliding groove 141 extending in the second direction X on the bottom plate 140 through the sliding block 114, so as to simulate the B pillar and the door 20 collapsing into the vehicle body when being impacted, and because the point of force of the collision is generally in the middle of the outer side of the door panel when the door 20 is impacted, the door 20 collapses into the vehicle and also deforms to a certain extent and rotates toward the vehicle body relative to the vehicle body threshold connection, so that the other end of the sliding block 114 is rotatably connected to the third connecting plate 1112 around an axis parallel to the first direction Y (i.e. the length direction of the vehicle body) so as to simulate the rotation of the door 20 and the B pillar relative to the vehicle body threshold connection when being impacted.

Still further, as shown in fig. 1, the embodiment of the present utility model further discloses an automobile side door crash experiment bench 10, the automobile side door crash experiment bench 10 further comprises a transverse limiting member 150, the transverse limiting member 150 is disposed between the supporting member 112 and the mounting member 111, one end of the transverse limiting member 150 is connected with the first supporting plate 1120 of the supporting member 112, the other end is connected with the mounting member 111, and the transverse limiting member 150 is foldable along the second direction X.

Specifically, by providing the lateral stopper 150 between the support 112 and the mount 111, when the door 20 and the mount 111 are impacted, the lateral stopper 150 is folded in the second direction X, and can guide the mount 111 and the door 20 to displace toward the first support plate 1120 in the second direction X, avoiding other directions of the mount 111.

Still further, as shown in fig. 1 and 5, the embodiment of the present utility model further discloses an automobile side door collision experiment table 10, wherein the lateral limiting member 150 is configured to: four connection plates 151 hinged in sequence in the second direction X, wherein the connection plates 151 located at both sides extend in the thickness direction of the bottom plate 140, and the two connection plates 151 located in the middle extend in a direction oblique to the thickness direction of the bottom plate 140.

Specifically, the first support plate 1120 and the first connection plate 1110 and/or the second connection plate 1111 of the mounting member 111 are provided with a plurality of connection plate mounting holes 1116 at corresponding positions, and the plurality of connection plate mounting holes 1116 are used for connecting the corresponding connection plates 151 of the lateral limiting member 150.

More specifically, in the present embodiment, the lateral limit member 150 is disposed between the first support plate 1120 and the first connection plate 1110, and of course, in another embodiment, the lateral limit member 150 is disposed between the first support plate 1120 and the second connection plate 1111, and in yet another embodiment, the lateral limit member 150 is disposed between the first support plate 1120 and both the first connection plate 1110 and the second connection plate 1111. Those skilled in the art may design according to practical situations and specific requirements, and the embodiment is not limited thereto.

More specifically, since the four connection plates 151 are sequentially hinged in the second direction X (i.e., the width direction of the vehicle body), when the door 20 and the mounting member 111 are impacted, the four connection plates 151 are rotated from the mutually hinged portions to be close to each other, folded together, and the four connection plates 151 are not displaced in other directions, thereby preventing the mounting member 111 and the first support plate 1120 from being displaced from each other in the second direction X.

In another embodiment, the lateral stop member 150 is configured to: the two ends of the telescopic rod are respectively connected to the first support plate 1120 and the mounting member 111 along the telescopic rod that can be contracted in the second direction X, and regarding the setting positions and the number of the telescopic rod, those skilled in the art can design the telescopic rod according to the actual situation and the specific requirements, which is not specifically limited in this embodiment.

Still further, as shown in fig. 7, the embodiment of the present utility model further discloses an automobile side door crash experiment bench 10, wherein the c-pillar simulation member 120 includes a second support plate 121 extending along a thickness direction of the bottom plate 140, and a second rib plate 122 located at a side of the second support plate 121 near the first support plate 1120 along the second direction X, the second support plate 121 and the second rib plate 122 are integrally formed, and bottoms of the second support plate 121 and the second rib plate 122 are fixedly connected with the bottom plate 140.

Specifically, during the door crash test, the second support plate 121 can simulate the C-pillar structure of the vehicle body, so as to fix the door 20, and the second rib plate 122 is disposed at a position of the second support plate 121 along the second direction X, which is close to the first support plate 1120, so as to improve the bearing capability of the second support plate 121 to the impact in the second direction X.

More specifically, in this embodiment, the bottoms of the second support plate 121 and the second rib plate 122 and the corresponding positions on the bottom plate 140 may be connected by welding, riveting, screwing or clamping, and the like, which are commonly used in the art, and those skilled in the art may design according to actual situations and specific requirements, and this embodiment is not limited in particular.

Still further, as shown in fig. 7, the embodiment of the utility model further discloses an automobile side door collision experiment bench 10, the lock body 123 is provided as a U-shaped tube 1230, two round holes are arranged on the second support plate 121 at least along the thickness direction of the bottom plate 140 at intervals, the two round holes extend along the first direction Y and penetrate through the second support plate 121, any one round hole is adapted to the end of the U-shaped tube 1230, and the U-shaped tube 1230 is mounted on the second support plate 121 through the two round holes.

Specifically, during the door crash test, the U-shaped pipe 1230 can be matched with the lock body structure of the door 20, so that whether the lock body of the door 20 is separated from the U-shaped pipe 1230 under impact can be verified, and the reliability of the door 20 during the crash can be verified.

More specifically, in this embodiment, two, three, four, five or six other numbers of round holes are disposed on the second support plate 121 at intervals along the thickness direction of the bottom plate 140, and the U-shaped tube 1230 can be selectively connected with the round holes at different positions on the second support plate 121 according to the position of the lock body on the vehicle door 20. And, when an odd number of round holes are provided on the second support plate 121 at intervals in the thickness direction of the bottom plate 140, the interval between two adjacent round holes is equal, that is, the distance between the two ends of the U-shaped pipe 1230. When the U-shaped tube 1230 is replaced with an adjacent round hole, there is one round hole in common. Regarding the number of circular holes and the spacing between adjacent circular holes, those skilled in the art can design according to actual situations and specific requirements, and this embodiment is not particularly limited.

Still further, as shown in fig. 8, the embodiment of the present utility model also discloses an automobile side door collision experiment bench 10, wherein the c-pillar bottom simulation member 130 includes a third support plate 131 extending in a thickness direction of the bottom plate 140, a top of the third support plate 131 extends upward from one side near the first support plate 1120 to the other side in a direction inclined to the thickness direction of the bottom plate 140, and an inclined edge of the top of the third support plate 131 is in an inwardly concave arc shape, and the other side of the top of the third support plate 131 extends at least partially in a horizontal direction.

Specifically, the top of the third support plate 131 forms a stepped surface along the second direction X, and the top surface near the mounting member 111 is higher than the top surface facing away from the mounting member 111, and the bottom of the third support plate 131 is fixedly connected with the bottom plate 140.

More specifically, through this third support plate 131, the structure of the vehicle body at the junction of the C pillar and the threshold can be simulated, so as to support the lower portion of the door 20, and further, the top of this second support plate 121 forms a step surface along the second direction X to be matched with the inner plate structure of the door 20, so that the installation position of the door 20 on the real vehicle can be more accurately simulated.

More specifically, in the present embodiment, the bottom of the third supporting plate 131 and the corresponding position on the bottom plate 140 may be connected by welding, riveting, screwing or clamping, and other connection methods commonly used in the art, and those skilled in the art may design according to practical situations and specific requirements, which is not limited in this embodiment.

More specifically, as shown in fig. 9, in this embodiment, in addition to the sliding groove 141 for connecting the sliding block 114, a plurality of connecting holes are disposed on the bottom plate 140 for mounting the whole automobile side door crash experiment bench 10 to the trolley, so as to facilitate the subsequent crash test. Regarding the number and positions of the connection holes, those skilled in the art can design according to practical situations and specific requirements, and the embodiment is not limited in particular.

In order to more clearly illustrate the automobile side door collision experiment table 10, the operation process of the automobile side door collision experiment table 10 will be described by taking an example of testing whether the automobile rear door is opened during a collision. Firstly, acquiring characteristic data of a side collision test of the whole vehicle of the existing vehicle type. These data include, but are not limited to, a displacement-time curve of the lower end position of the B-pillar of the vehicle body, an acceleration-time curve at the door lock of the rear door, a downward movement distance of the door lock stay, a post-collision deformation picture of the rear door, a post-collision deformation picture of the B-pillar, and a post-collision deformation picture of the C-pillar. In the early stage of whole vehicle development, if the situation that the whole vehicle performs a collision test cannot be obtained, the data can be extracted from the calculation result of the whole vehicle simulation model with certain precision.

Further, a simulation model of such a car side door collision experiment bench 10 is established, including the car side door collision experiment bench 10, the barrier simulation device 30, and a back door model to be verified. And simulating the opening performance of the side collision test of the rear vehicle door by using a simulation model, and reading the characteristic data for comparison. As the above data are greatly different from the data obtained from the simulation model of such a car side door collision experiment bench 10, the differences between the data can be reduced by changing the three parameters of the spring 1130 stiffness, the trolley speed and the trolley weight between the mount 111 and the first support plate 1120, so as to finally determine the spring 1130 stiffness, the trolley speed and the trolley weight of the car side door collision experiment bench 10.

Further, the B-pillar simulation member 110, the C-pillar simulation member 120, and the C-pillar bottom simulation member 130 are fixedly connected to the base plate 140. Based on the positions of the two hinge seats of the back door 20 to be verified, the heights of the two hinge mounting plates 1113 are adjusted, after the positions are adjusted, the hinge mounting plates 1113 are connected with the adjacent connecting plates, so that the first connecting plate 1110, the second connecting plate 1111 and the third connecting plate 1112 are connected together to form the B-pillar simulation member 110, the third connecting plate 1112 is slidably connected to the slide groove 141 of the bottom plate 140 along the second direction X through the slide block 114, the third connecting plate 1112 is rotatably connected with the slide block 114, and the springs 1130 and the lateral limiting members 150 are assembled on the first supporting plate 1120 and the mounting member 111. Based on the lock body position of the door 20, the U-shaped pipe 1230 is adjusted to be mounted in a different circular hole of the second support plate 121 so as to be matched with the lock body of the door 20.

Further, the car side door collision experiment table 10 is fixed to the car by using the screw hole on the bottom plate 140, and the car is weighted according to the data obtained by the simulation. Then, the two hinge seats of the door 20 to be tested are connected with the hinge mounting holes 1114 of the corresponding hinge mounting plates 1113, the lock body of the door 20 is matched with the U-shaped pipe 1230 of the C-pillar simulation member 120, and the lower part of the door 20 is abutted against the third support plate 131.

Furthermore, an acceleration sensor is arranged in the area, close to the door lock, of the inner plate of the rear door and is used for measuring acceleration data of the door lock area in the collision process; the door lock lever is painted and marked, and a high-speed camera is installed at a proper position on the bottom plate 140, and an illumination device is installed on the rear door to observe the downward movement distance of the door lock lever during collision.

Further, the trolley is caused to strike the side collision barrier simulation device 30 at the collision speed calculated by the simulation model, the door deformation mode, the door lock pull rod movement condition and the device deformation condition after collision are observed, and corresponding data are read. The opening performance of the rear door in the side collision working condition of the automobile can be effectively simulated.

It should be noted that, the automobile side door collision experiment bench 10 is not limited to the experiment for testing whether the automobile door is opened during a collision, but may also be used for testing the deformation invasion amount of the automobile door during a collision, and the experiment for verifying the reliability and safety of the automobile door, and those skilled in the art may design according to the actual situation and specific requirements, and the embodiment is not limited thereto.

It is intended that other advantages and effects of the present utility model, in addition to those described in the specific embodiments, be readily apparent to those skilled in the art from the present disclosure. While the description of the utility model will be described in connection with the preferred embodiment, it is not intended to limit the utility model to the particular form disclosed. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The foregoing description contains many specifics, other embodiments, and examples of specific details for the purpose of providing a thorough understanding of the utility model. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims (10)

1. The automobile side door collision experiment bench is characterized by comprising a B-pillar simulation component, a C-pillar bottom simulation component and a bottom plate, wherein the B-pillar simulation component, the C-pillar bottom simulation component and the C-pillar simulation component are all arranged on the bottom plate and are sequentially arranged at intervals in a first direction,

the B column simulation component comprises a mounting piece and a supporting piece which are arranged at intervals in a second direction, a buffer piece is arranged between the mounting piece and the supporting piece, a first mounting part is arranged on the mounting piece, and the first mounting part is used for fixedly connecting with a hinge part of an automobile side door; the first direction and the second direction are perpendicular to each other and are perpendicular to the thickness direction of the bottom plate respectively;

The C column simulation component is provided with a lock body part which is matched with a door lock of the automobile side door;

and the C column bottom simulation part is abutted against the lower side of the inner plate of the side door of the automobile.

2. The automobile side door crash test bench of claim 1 wherein:

the mounting piece comprises a first connecting plate, a second connecting plate and a third connecting plate which are sequentially arranged at intervals along the thickness direction of the bottom plate, hinge mounting plates are arranged between the first connecting plate and the second connecting plate and between the second connecting plate and the third connecting plate, the first connecting plate and the second connecting plate are fixedly connected through the hinge mounting plates, the third connecting plate is positioned at one side close to the bottom plate relative to the second connecting plate, and the first connecting plate is positioned at one side far away from the bottom plate relative to the second connecting plate; wherein,

the first mounting portion is: and a plurality of hinge mounting holes provided on both of the hinge mounting plates.

3. The automobile side door collision test bench of claim 2, wherein:

the support piece comprises a first support plate which extends along the thickness direction of the bottom plate and is arranged at intervals relative to the mounting piece, and a first rib plate which is positioned on one side of the first support plate and is away from the mounting piece, wherein the first support plate and the first rib plate are integrally formed, and the bottoms of the first support plate and the first rib plate are fixedly connected with the bottom plate.

4. The automobile side door crash experimental bench of claim 3, wherein:

the buffer piece comprises a spring and spring seats arranged at two ends of the spring, a plurality of spring mounting holes are formed in the corresponding positions of the first support plate and the first connecting plate and/or the third connecting plate, and the plurality of spring mounting holes are used for connecting the spring seats;

the spring is arranged between the first supporting plate and the first connecting plate and/or between the first supporting plate and the third connecting plate.

5. The automobile side door crash test bench of claim 4 wherein:

the automobile side door collision experiment bench further comprises a sliding block, wherein the sliding block is positioned between the third connecting plate and the bottom plate, and a sliding groove extending along the second direction is arranged on the bottom plate and positioned below the third connecting plate;

one end of the sliding block is slidably arranged in the sliding groove, and the other end of the sliding block is rotatably connected with the third connecting plate around an axis parallel to the first direction.

6. The automobile side door crash test bench of claim 4 wherein:

the automobile side door collision experiment bench further comprises a transverse limiting part, the transverse limiting part is arranged between the supporting piece and the mounting piece, one end of the transverse limiting part is connected with the first supporting plate of the supporting piece, the other end of the transverse limiting part is connected with the mounting piece, and the transverse limiting part can be folded along the second direction.

7. The automobile side door crash test bench of claim 6 wherein:

the transverse limiting component is arranged as follows: the four connecting plates are hinged in sequence along the second direction, wherein the connecting plates at two sides extend along the thickness direction of the bottom plate, and the two connecting plates at the middle extend along the direction oblique to the thickness direction of the bottom plate;

the first supporting plate and the first connecting plate and/or the second connecting plate of the mounting piece are provided with a plurality of connecting plate mounting holes at corresponding positions, and the plurality of connecting plate mounting holes are used for connecting the corresponding connecting plates of the transverse limiting part;

the transverse limiting component is arranged between the first supporting plate and the first connecting plate and/or between the first supporting plate and the second connecting plate.

8. The automobile side door crash test bench of any of claims 3-7, wherein:

the C column simulation component comprises a second supporting plate extending along the thickness direction of the bottom plate, and a second rib plate located on one side of the second supporting plate, which is close to the first supporting plate along the second direction, wherein the second supporting plate and the second rib plate are integrally formed, and the bottoms of the second supporting plate and the second rib plate are fixedly connected with the bottom plate.

9. The automobile side door crash test bench of claim 8 wherein:

the lock body is arranged to be a U-shaped pipe, two round holes are formed in the second supporting plate at least along the thickness direction of the bottom plate at intervals, the two round holes extend along the first direction and penetrate through the second supporting plate, any one round hole is matched with the end part of the U-shaped pipe, and the U-shaped pipe is installed in the second supporting plate through the two round holes.

10. The automobile side door crash test bench of claim 8 wherein:

the C-pillar bottom simulation part includes a third support plate extending in a thickness direction of the bottom plate, a top of the third support plate extends upward from one side close to the first support plate to the other side in a direction inclined to the thickness direction of the bottom plate, an inclined edge of the top of the third support plate is in an inward concave arc shape, and the other side of the top of the third support plate extends at least partially in a horizontal direction; wherein,

the top of the third supporting plate forms a step surface along the second direction, the top surface close to the mounting piece is higher than the top surface deviating from the mounting piece, and the bottom of the third supporting plate is fixedly connected with the bottom plate.