CN115991162A - Mounting structure of vehicle bumper assembly and vehicle - Google Patents
Mounting structure of vehicle bumper assembly and vehicle Download PDFInfo
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- CN115991162A CN115991162A CN202310151938.2A CN202310151938A CN115991162A CN 115991162 A CN115991162 A CN 115991162A CN 202310151938 A CN202310151938 A CN 202310151938A CN 115991162 A CN115991162 A CN 115991162A
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Abstract
The invention discloses a mounting structure of a vehicle bumper assembly and a vehicle, wherein the mounting structure comprises a connecting frame, a switching frame and a mounting frame, a connecting column is arranged on the vehicle bumper assembly, the connecting frame comprises a connecting plate and a plugboard, the connecting plate is connected to the plugboard, a connecting hole is formed in the connecting plate, and the connecting column is spliced in the connecting hole along the Y direction; the switching frame comprises a bottom plate and a coaming, wherein the coaming is connected with the bottom plate and encloses a containing cavity with the bottom plate, the containing cavity is provided with a mounting port, the plug board stretches into the containing cavity along the Y direction from the mounting port, and a switching column is arranged on one side of the bottom plate, which is away from the containing cavity; the mounting frame is provided with a mounting hole, the switching column is inserted into the mounting hole along the Z direction, and the mounting frame is connected to the body of the vehicle; the mounting structure is in plug-in fit with the connecting hole through the connecting column, the plug board is in plug-in fit with the accommodating cavity and the switching column is in plug-in fit with the mounting hole, so that the bumper assembly can be stably mounted on the vehicle body, and the assembly precision between the bumper assembly and the vehicle body is improved.
Description
Technical Field
The invention relates to the technical field of vehicle assembly, in particular to a mounting structure of a vehicle bumper assembly and a vehicle.
Background
In a vehicle assembly line, a front bumper assembly of a vehicle needs to be mounted on a vehicle body, and in an SUV (sports utility vehicle) model, due to various reasons such as large height and heavy weight of the front bumper assembly in the vertical direction, machining errors and assembly error accumulation of parts of the front bumper assembly, easy shaking of the front bumper when the vehicle runs on a bumpy road, and the like, a front suspension value, a sagging amount, a left-right offset amount and a front-rear offset amount which exceed a preset tolerance range exist between the front bumper and the vehicle body, namely, the assembly precision between the bumper assembly and the vehicle body is low, the mounting of the bumper assembly is unstable, the front bumper assembly is easy to shake, and the production quality and the running safety of the vehicle are influenced.
Disclosure of Invention
The invention mainly aims to provide a mounting structure of a vehicle bumper assembly and a vehicle, and aims to solve the problems that the assembly precision between the bumper assembly and a vehicle body is low, the mounting of the bumper assembly is unstable and the bumper assembly is easy to shake.
In order to achieve the above object, the present invention provides a mounting structure of a vehicle bumper assembly, comprising:
the connecting frame comprises a connecting plate and a plugboard, wherein the connecting plate is connected to the plugboard, a connecting hole for the connecting column to extend in is formed in the connecting plate, and the connecting column is spliced in the connecting hole along the Y direction;
the switching frame comprises a bottom plate and a coaming, wherein the coaming is connected with the bottom plate and forms a containing cavity with the bottom plate, the containing cavity is provided with a mounting opening, the plugboard stretches into the containing cavity along the Y direction from the mounting opening, and a switching column is arranged on one side of the bottom plate, which is away from the containing cavity;
the mounting frame, set up on the mounting frame and supply the mounting hole that the switching post stretches into, the switching post along Z along the direction peg graft in the mounting hole, the mounting frame in X to, Y to, Z upwards support tightly and connect in the automobile body of vehicle.
Optionally, a limit groove is formed in the bottom plate towards one side of the accommodating cavity, the limit groove is located at one end, away from the mounting opening, of the accommodating cavity, the plug board abuts against the cavity wall of the accommodating cavity in the Z direction, a limit protrusion is arranged on the plug board, the limit protrusion is mounted in the limit groove, and a gap between the limit protrusion and the groove wall of the limit groove in the Y direction is not more than 0.5mm.
Optionally, at least one deformation groove is formed in the plugboard, the deformation groove divides the plugboard into an elastic sheet and a limiting sheet, the elastic sheet is provided with a limiting protrusion, a gap between the limiting sheet and the cavity wall of the accommodating cavity in the X direction is not more than 1.5mm, a gap between the limiting sheet and the cavity wall of the accommodating cavity in the Y direction is not more than 0.5mm, and a gap between the limiting sheet and the cavity wall of the accommodating cavity in the Z direction is not more than 0.1mm.
Optionally, the bottom plate includes interconnect's supporting section and dodges the section, the last limiting groove of having seted up of supporting section, the plugboard supports tightly in the Z upwards the supporting section, dodge the section from the supporting section is to keeping away from the direction slope setting of mounting bracket, so that the holding chamber is the divergent setting along being close to the direction of installing port.
Optionally, the support section is provided with spacing muscle and two supporting ribs, two the supporting ribs are arranged along X to the interval, the both ends of spacing muscle respectively with two the supporting ribs are connected, spacing muscle and two enclose into between the supporting ribs spacing groove, the splice plate in Z upwards support tightly and support in on the supporting ribs, spacing arch in Y upwards with the clearance between the spacing muscle is not more than 0.5mm.
Optionally, a guide block is arranged at one side of the limiting rib, which is away from the limiting groove, the guide block is provided with a first guide slope which is obliquely arranged, and the distance between the first guide slope and the supporting section is gradually reduced along the direction close to the mounting opening; and a second guiding slope is formed at one end of each supporting rib, which is close to the mounting opening, and the distance between the second guiding slope and the supporting section is gradually reduced along the direction, which is close to the mounting opening.
Optionally, the coaming is kept away from the one end of installing port has been seted up and has been dodged the mouth, the shell fragment is followed dodge mouthful department stretches out to the holding chamber is outside, just the shell fragment is close to dodge mouthful one end is to deviating from the direction bending set of supporting section.
Optionally, a plurality of inserting pieces are arranged on the periphery of the connecting column, the plurality of inserting pieces are arranged at intervals along the periphery of the connecting column, inserting grooves for the inserting pieces to extend into are formed in the connecting plate corresponding to the inserting pieces, and the inserting pieces are inserted into the inserting grooves correspondingly arranged; the gap between the plug-in piece and the groove wall of the plug-in groove in the X direction is not more than 0.1mm, the plug-in piece is propped against the groove wall of the plug-in groove in the Y direction, and the gap between the plug-in piece and the groove wall of the plug-in groove in the Z direction is not more than 0.1mm.
Optionally, at least two positioning slots arranged at intervals are formed in the bumper assembly, a positioning sheet is arranged on the connecting plate corresponding to each positioning slot, and each positioning sheet is installed in the corresponding positioning slot.
The invention further provides a vehicle, the vehicle comprises a vehicle body, the bumper assembly and the mounting structure, the vehicle body comprises a radiator support, the mounting frame is connected to the radiator support, the bumper assembly comprises a connecting seat, and the connecting seat is provided with the connecting column.
The mounting structure comprises a connecting frame, a switching frame and a mounting frame which are sequentially connected, wherein the connecting frame comprises a plug board and a connecting plate connected to the plug board, a connecting hole is formed in the connecting plate, a connecting column is arranged on the bumper assembly and extends into the connecting hole so as to connect the connecting frame to the bumper assembly, the switching frame comprises a bottom plate and a coaming connected to the bottom plate, a containing cavity with a mounting opening is formed between the coaming and the bottom plate in a surrounding manner, the plug board is inserted into the containing cavity from the mounting opening so as to enable the connecting frame to be connected with the switching frame, a switching column extending downwards is arranged at the lower side of the bottom plate, a mounting hole is formed in one end of the mounting frame close to the switching frame, the switching column penetrates through the mounting hole and is inserted into the mounting hole so as to connect the switching frame with the mounting frame, one end of the mounting frame away from the switching frame is connected to a vehicle body, and further the bumper assembly, the connecting frame, the switching frame, the mounting frame and the vehicle body are sequentially connected through the connecting column and the connecting hole in a plug-in fit manner, the plugging panel and the containing cavity and the mounting hole in a plug-in fit manner, so that the mounting column can be stably mounted on the vehicle body assembly, the mounting frame can be assembled with the corresponding vehicle body assembly, the mounting hole and the mounting frame, the mounting frame and the vehicle body can be prevented from shaking and the vehicle assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a bumper assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a partial structure of a vehicle body according to an embodiment of the present invention;
FIG. 3 is a schematic view of an assembly structure of a mounting structure according to an embodiment of the present invention;
FIG. 4 is an exploded view of a mounting structure according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating an assembling structure of a connecting frame and a adapting frame according to an embodiment of the present invention;
FIG. 6 is a schematic view of a connecting frame according to an embodiment of the present invention;
FIG. 7 is a schematic view of a connecting frame according to an embodiment of the present invention in another view;
FIG. 8 is a schematic view of a structure of an adapter frame according to an embodiment of the present invention;
FIG. 9 is a schematic view of a structure of an adapter frame according to an embodiment of the present invention in another view;
FIG. 10 is a schematic view of a connecting seat in a bumper assembly according to an embodiment of the present invention;
FIG. 11 is a force analysis diagram of a limit protrusion inserted into a limit slot according to an embodiment of the present invention;
FIG. 12 is a force analysis chart showing the spacing protrusion being pulled out of the spacing groove according to an embodiment of the present invention;
FIG. 13 shows the insertion force F1 and the insertion angle according to an embodiment of the present invention
A line graph of (2);
FIG. 14 is a line graph of insertion force F1 versus length L according to an embodiment of the present invention;
FIG. 15 is a line graph of insertion force F1 versus width B according to an embodiment of the present invention;
FIG. 16 is a plot of insertion force F1 versus thickness t for an embodiment of the present invention;
FIG. 17 is a line graph of insertion force F1 versus LAP h according to an embodiment of the present invention;
FIG. 18 is a plot of insertion force F1 versus flexural modulus E for an embodiment of the present invention;
fig. 19 is a line graph of insertion force F1 versus coefficient of friction μ in accordance with an embodiment of the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the |
| 100 | |
2132 | Supporting |
| 10 | Connecting |
2133 | Second guiding |
| 11 | Connecting |
214 | |
| 111 | Connecting |
215 | |
| 112 | |
2151 | First guiding |
| 113 | |
22 | Coaming |
| 12 | |
221 | |
| 121 | |
23 | Accommodating |
| 122 | |
231 | Mounting opening |
| 123 | |
30 | |
| 124 | |
31 | |
| 20 | |
200 | |
| 21 | |
201 | Connecting |
| 211 | |
202 | Plug-in |
| 212 | Limiting |
203 | |
| 213 | |
204 | Connecting |
| 2131 | |
300 | Radiator support |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the drawings in the present embodiment, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in this embodiment are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The description of the orientations of "up", "down", "front", "rear", "left", "right", etc. in the present invention is based on the orientation shown in fig. 3, and is merely for explaining the relative positional relationship between the components in the posture shown in fig. 3, and if the specific posture is changed, the directional indication is changed accordingly.
The present invention proposes a mounting structure 100 for a vehicle bumper assembly.
As shown in fig. 1 to 5, the mounting structure 100 includes a connecting frame 10, a transfer frame 20 and a mounting frame 30, a connecting column 201 is provided on a bumper assembly 200 of a vehicle, the connecting frame 10 includes a connecting plate 11 and a plug board 12, the connecting plate 11 is connected to the plug board 12, a connecting hole 111 into which the connecting column 201 extends is provided on the connecting plate 11, and the connecting column 201 is inserted into the connecting hole 111 along the Y direction; the adapter bracket 20 comprises a bottom plate 21 and a coaming 22, wherein the coaming 22 is connected with the bottom plate 21 and forms an accommodating cavity 23 with the bottom plate 21, the accommodating cavity 23 is provided with a mounting opening 231, the plug board 12 extends into the accommodating cavity 23 from the mounting opening 231 along the Y direction, and an adapter column 211 is arranged on one side of the bottom plate 21 away from the accommodating cavity 23; the mounting frame 30 is provided with a mounting hole 31 into which the switching column 211 extends, the switching column 211 is inserted into the mounting hole 31 along the Z direction, and the mounting frame 30 is abutted against and connected to the body of the vehicle in the X direction, the Y direction and the Z direction.
Specifically, mounting structure 100 includes connecting plate 10, changeover frame 20 and mounting bracket 30 that connect gradually, connecting plate 10 includes plugboard 12 and connects connecting plate 11 on plugboard 12, connecting hole 111 has been seted up on connecting plate 11, be provided with spliced pole 201 on the bumper assembly 200, spliced pole 201 stretches into in connecting hole 111 in order to connect connecting plate 10 on bumper assembly 200, changeover frame 20 includes bottom plate 21 and the bounding wall 22 of connection on bottom plate 21, enclose into the accommodation chamber 23 that has mounting hole 231 between bounding wall 22 and the bottom plate 21, plugboard 12 inserts in accommodation chamber 23 from mounting hole 231 department, so that connecting plate 10 is connected with changeover frame 20, the downside of bottom plate 21 is provided with downwardly extending's spliced pole 211, mounting bracket 30 is close to the one end of changeover frame 20 and has seted up mounting hole 31, spliced pole 211 passes mounting bracket 31 and peg graft in mounting hole 31, and then be connected changeover frame 20 and mounting bracket 30, the one end that changeover frame 30 kept away from changeover frame 20 is connected on the automobile body, and then make bumper assembly 200, changeover frame 10, changeover frame 20, and automobile body 20 and automobile body 200 have been connected gradually, the accommodation chamber 23 has been realized through the spliced pole 201 and connecting plate 200 and connecting plate 20 have been improved and the installation hole 200 and have been cooperateed, and have improved the assembly quality that the assembly is stable, the assembly is relatively matched with automobile body 200 is installed to the mounting plate 200.
In this embodiment, a limiting groove 212 is formed on one side of the bottom plate 21 facing the accommodating cavity 23, the limiting groove 212 is located at one end of the accommodating cavity 23 away from the mounting opening 231, the plug board 12 abuts against the cavity wall of the accommodating cavity 23 in the Z direction, a limiting protrusion 121 is disposed on the plug board 12, the limiting protrusion 121 is mounted in the limiting groove 212, and a gap between the limiting protrusion 121 and the groove wall of the limiting groove 212 in the Y direction is not greater than 0.5mm. As shown in fig. 5 to 9, the upper side of the bottom plate 21 is provided with a limit groove 212, the lower side of the plug board 12 is provided with a limit protrusion 121, and the plug board 12 extends into the accommodating cavity 23 from the mounting opening 231, so that the limit protrusion 121 is clamped in the limit groove 212, the plug board 12 is stably mounted in the accommodating cavity 23, and then the connecting frame 10 is connected with the adapter frame 20, the connection strength is increased, and the assembly precision between the bumper assembly 200 and the vehicle body is further improved.
In the installation structure 100 of this embodiment, at least one deformation groove 122 is formed on the plug board 12, the deformation groove 122 separates the plug board 12 into a spring plate 123 and a limiting plate 124, a limiting protrusion 121 is disposed on the spring plate 123, a gap between the limiting plate 124 and a cavity wall of the accommodating cavity 23 in the X direction is not greater than 1.5mm, a gap between the limiting plate 124 and the cavity wall of the accommodating cavity 23 in the Y direction is not greater than 0.5mm, and a gap between the limiting plate 124 and the cavity wall of the accommodating cavity 23 in the Z direction is not greater than 0.1mm.
As shown in fig. 5 to 9, two deformation grooves 122 are formed in the plug board 12 along the X-direction at intervals, the two deformation grooves 122 divide the plug board 12 into an elastic sheet 123 and two limiting sheets 124, the two limiting sheets 124 are respectively arranged on two sides of the elastic sheet 123, the limiting protrusions 121 are arranged on the lower side of the elastic sheet 123, when the elastic sheet 123 and the limiting sheets 124 are inserted into the accommodating cavity 23, the elastic sheet 123 is bent upwards to enable the elastic sheet 123 to drive the limiting protrusions 121 to rotate upwards, and then the elastic sheet 123 is convenient to drive the limiting protrusions 121 to extend into the accommodating cavity 23, and the plug board has the advantage of being convenient and fast to install.
In this embodiment, the bottom plate 21 includes a supporting section 213 and an avoidance section 214 that are connected to each other, the supporting section 213 is provided with a limiting groove 212, the plug board 12 abuts against the supporting section 213 in the Z direction, and the avoidance section 214 is inclined from the supporting section 213 in a direction away from the mounting frame 30, so that the accommodating cavity 23 is gradually expanded along a direction close to the mounting opening 231. As shown in fig. 5 to 9, the limiting groove 212 is formed on the upper side of the supporting section 213, the limiting protrusion 121 extends into the limiting groove 212 and is clamped in the limiting groove 212, so that the elastic sheet 123 is stably mounted in the accommodating cavity 23, the supporting section 213 can play a role in supporting the elastic sheet 123 and the limiting sheet 124, the stability of the structure is further improved, and the avoiding section 214 is arranged in a downward inclined manner from the supporting section 213 in a direction close to the bumper assembly 200, so that the elastic sheet 123 and the limiting sheet 124 are mounted in the accommodating cavity 23 from the mounting opening 231, and the assembly is convenient.
Further, the supporting section 213 is provided with a limiting rib 2131 and two supporting ribs 2132, the two supporting ribs 2132 are arranged at intervals along the X direction, two ends of the limiting rib 2131 are respectively connected with the two supporting ribs 2132, a limiting groove 212 is defined between the limiting rib 2131 and the two supporting ribs 2132, the plug board 12 is abutted tightly in the Z direction and supported on the supporting ribs 2132, and a gap between the limiting protrusion 121 and the limiting rib 2131 in the Y direction is not more than 0.5mm. As shown in fig. 5 to 9, the supporting section 213 is provided with a limiting rib 2131 and two supporting ribs 2132, the limiting rib 2131 extends along the X-direction, and two ends of the limiting rib 2131 are respectively connected with the two supporting ribs 2132, so that a limiting groove 212 for extending the limiting protrusion 121 is enclosed between the limiting rib 2131 and the two supporting ribs 2132, the limiting groove 212 is used for preventing the limiting protrusion 121 from falling out, so as to ensure stable connection between the connecting frame 10 and the transferring frame 20, and the two supporting ribs 2132 are respectively used for supporting the two limiting sheets 124, thereby further improving structural stability.
In this embodiment, a guide block 215 is disposed on a side of the limiting rib 2131 facing away from the limiting groove 212, the guide block 215 has a first guide slope 2151 disposed obliquely, and a distance between the first guide slope 2151 and the support section 213 is tapered along a direction approaching to the mounting opening 231; the end of each support rib 2132 adjacent to the mounting opening 231 is formed with a second guide slope 2133, and the distance between the second guide slope 2133 and the support segment 213 is tapered along the direction adjacent to the mounting opening 231. As shown in fig. 5 to 9, one side of the limiting rib 2131 facing the limiting groove 212 is used for being abutted against the limiting protrusion 121 to prevent the limiting protrusion 121 from falling out, one side of the limiting rib 2131 facing away from the limiting groove 212 is provided with a guide block 215, a first guide slope 2151 which is arranged in a downward inclined manner is formed on the guide block 215, the first guide slope 2151 is used for guiding and installing the elastic sheet 123, the elastic sheet 123 is convenient to be inserted into the accommodating cavity 23, two second guide slopes 2133 which are arranged in a downward inclined manner are formed on the two supporting ribs 2132, the two second guide slopes 2133 are respectively used for guiding and installing two limiting sheets 124, the limiting sheets 124 are convenient to be inserted into the accommodating cavity 23, and assembly convenience is further improved.
In the installation structure 100 of this embodiment, the end of the coaming 22 away from the installation opening 231 is provided with the avoidance opening 221, the elastic sheet 123 extends out of the accommodating cavity 23 from the avoidance opening 221, and the end of the elastic sheet 123 close to the avoidance opening 221 is bent in the direction away from the supporting section 213. As shown in fig. 5 to 9, the avoiding opening 221 is opposite to the mounting opening 231, the elastic sheet 123 extends into the accommodating cavity 23 from the mounting opening 231 to enable the limiting protrusion 121 to be inserted into the limiting groove 212, and the elastic sheet 123 extends out of the accommodating cavity 23 from the avoiding opening 221 and bends upwards, so that when the connecting frame 10 needs to be disassembled, the elastic sheet 123 extending out of the avoiding opening 221 is pushed upwards, the elastic sheet 123 drives the limiting protrusion 121 to rotate upwards to enable the limiting protrusion 121 to be separated from the limiting groove 212, the elastic sheet 123 is taken out from the mounting opening 231 conveniently, the avoiding opening 221 plays a role of avoiding the elastic sheet 123 so as to push the elastic sheet 123 upwards, and the connecting frame has the advantages of convenience in disassembly and flexible structural design.
In this embodiment, a plurality of inserting pieces 202 are disposed on the outer periphery of the connecting column 201, the plurality of inserting pieces 202 are disposed at intervals along the outer periphery of the connecting column 201, inserting grooves 112 into which the inserting pieces 202 extend are formed in the connecting plate 11 corresponding to the positions of the inserting pieces 202, and each inserting piece 202 is inserted into the corresponding inserting groove 112; the clearance between the plug tab 202 in the X direction and the groove wall of the plug groove 112 is not more than 0.1mm, the plug tab 202 abuts against the groove wall of the plug groove 112 in the Y direction, and the clearance between the plug tab 202 in the Z direction and the groove wall of the plug groove 112 is not more than 0.1mm. And, at least two positioning slots 203 are arranged on the bumper assembly 200 at intervals, a positioning plate 113 is arranged on the connecting plate 11 corresponding to each positioning slot 203, and each positioning plate 113 is installed in the corresponding positioning slot 203.
As shown in fig. 6 to 10, a plurality of inserting grooves 112 are formed in the connecting plate 11, a plurality of inserting pieces 202 are arranged on the periphery of the connecting column 201, the number of inserting grooves 112 is consistent with that of the inserting pieces 202 and the inserting pieces 202 are arranged in a one-to-one correspondence manner, so that each inserting piece 202 can be inserted into the inserting groove 112 correspondingly arranged, the connection stability between the connecting frame 10 and the bumper assembly 200 is further improved, two positioning pieces 113 which are arranged at intervals are arranged on the connecting plate 11, two positioning grooves 203 are formed in the bumper assembly 200, and the positioning grooves 203 are used for allowing the positioning pieces 113 to extend in order to play a role of positioning the mounting connecting frame 10, and the assembly precision is further improved.
The invention also provides a vehicle, the vehicle comprises a vehicle body, a bumper assembly 200 and the mounting structure 100, the vehicle body comprises a radiator support 300, the mounting frame 30 is connected to the radiator support 300, one end of the mounting frame 30, which is far away from the radiator support 300, is provided with a mounting hole 31, a gap between the adapting column 211 and the hole wall of the mounting hole 31 in the X direction and the Y direction is not more than 0.1mm, the bottom plate 21 is abutted against and supported on the mounting frame 30 in the Z direction, the bumper assembly 200 comprises a connecting seat 204, the connecting seat 204 is provided with a connecting column 201, and the specific structure of the mounting structure 100 refers to the embodiment.
In the prior art, the bumper assembly 200 is generally directly mounted on the vehicle body, the bumper assembly 200 sags 3mm in the Z direction due to its own weight, the front overhang has an error of ±12mm, the preset tolerance range of the front overhang is ±10mm, there is a front-back offset of ±10mm in the Y direction between the bumper assembly 200 and the vehicle body, and there is a left offset of ±5mm in the X direction, i.e. there is a large shake in the X direction, Y direction and Z direction when the bumper assembly 200 is directly mounted on the vehicle body.
In one embodiment, in the Z-direction, the clearance between the connecting post 201 and the wall of the connecting hole 111 in the Z-direction is not more than 0.1mm, and the clearance between the plug tab 202 and the wall of the plug slot 112 in the Z-direction is not more than 0.1mm, so that gravity is transmitted from the bumper assembly 200 to the connector frame 10 through the plug engagement of the connecting post 201 with the connecting hole 111 and the plug tab 202 with the plug slot 112; the lower side of the limiting piece 124 abuts against the supporting rib 2132, namely, the gap between the limiting piece 124 and the supporting rib 2132 is 0, and the gap between the upper side of the limiting piece 124 and the cavity wall of the accommodating cavity 23 is not more than 0.1mm, so that gravity is transferred from the connecting frame 10 to the transferring frame 20; the bottom plate 21 is abutted against and supported on the mounting frame 30 in the Z direction, so that gravity is transferred from the adapter frame 20 to the mounting frame 30, the mounting frame 30 is welded on the vehicle body, and the gravity is sequentially transferred from the bumper assembly 200 to the vehicle body through the connecting frame 10, the adapter frame 20 and the mounting frame 30, namely, the upward offset of the bumper assembly 200 relative to the vehicle body is 0.1+0.1+0+0=0.2 mm, the downward offset is 0.1+0+0=0.1 mm, and the sagging amount of the bumper assembly 200 is greatly reduced;
in the Y direction, the plug sheet 202 is abutted against the groove wall of the plug groove 112 in the Y direction, namely, the gap between the plug sheet 202 and the groove wall of the plug groove 112 is 0, the gap between the limiting protrusion 121 and the limiting rib 2131 in the Y direction is not more than 0.5mm, the gap between the front side of the limiting sheet 124 and the cavity wall of the accommodating cavity 23 is not more than 0.5mm, the gap between the transfer column 211 and the hole wall of the mounting hole 31 in the Y direction is not more than 0.1mm, and the mounting frame 30 is welded on the vehicle body, so that the front-back offset between the bumper assembly 200 and the vehicle body is 0+0.5+0.1+0=0.6 mm, namely, the front-back offset of the bumper assembly 200 relative to the vehicle body is +/-0.6 mm, and the mounting stability of the bumper assembly 200 relative to the vehicle body is improved;
in the X-direction, the gap between the plug sheet 202 and the slot wall of the plug slot 112 in the X-direction is not more than 0.1mm, the gap between the limiting sheet 124 and the cavity wall of the accommodating cavity 23 in the X-direction is not more than 1.5mm, the gap between the adapter column 211 and the hole wall of the mounting hole 31 in the X-direction is not more than 0.1mm, and the mounting frame 30 is welded on the vehicle body, so that the left-right offset between the bumper assembly 200 and the vehicle body is 0.1+1.5+0.1+0=1.7 mm, namely, the left-right offset between the bumper assembly 200 and the vehicle body is +/-1.7 mm, thereby ensuring the assembly precision between the bumper assembly 200 and the vehicle body and effectively preventing the bumper assembly 200 from shaking.
It should be noted that, when the limiting protrusion 121 is inserted into the limiting groove 212, the insertion force F1 of the limiting protrusion needs to be less than 100N to ensure that the limiting protrusion 121 can be stably inserted into the limiting groove 212 without damaging the connecting frame 10 or the adapting frame 20, and if the insertion force F1 is greater than 100N, the elastic sheet 123 is easily deformed or broken; when the stopper protrusion 121 is removed from the stopper groove 212, the removal force F2 thereof needs to be greater than 250N to prevent the stopper protrusion 121 from coming off when the vehicle is traveling on a bumpy road.
In one embodiment, the mechanical model of the limit bump 121 on the spring 123 is shown in fig. 11 and 12, wherein the flexural modulus of the limit bump 121
The width b=7mm of the limiting protrusion 121, the thickness of the limiting protrusion 121 is t=2mm, the LAP amount h of the limiting protrusion 121 and the limiting groove 212 is=2.5 mm, the length (the dimension when the maximum LAP amount h is reached during pulling) l=9.5 mm of the limiting protrusion 121, and the insertion angle of the limiting protrusion 121 is->
The pull-out angle of the limit projection 121>
The friction coefficient μ=0.17 mm of the limit projection 121 gives
As shown in fig. 13, the insertion force F1 of the stopper projection 121 and the insertion angle of the stopper projection 121
Proportional to the ratio; as shown in fig. 14, the insertion force F1 of the limit projection 121 is inversely proportional to the length L of the limit projection 121; as shown in fig. 15, the insertion force F1 of the limit projection 121 is proportional to the width B of the limit projection 121; as shown in fig. 16, the insertion force F1 of the limit projection 121 is proportional to the thickness t of the limit projection 121; as shown in fig. 17, the insertion force F1 of the limit projection 121 is proportional to the LAP amount h of the limit groove 212; as shown in fig. 18, the insertion force F1 of the limit projection 121 is proportional to the flexural modulus E of the limit projection 121; as shown in fig. 19, the insertion force F1 of the limiting protrusion 121 is proportional to the friction coefficient μ of the limiting protrusion 121, and the present embodiment ensures the assembly reliability between the connection frame 10 and the adapter frame 20 by structural design and stress analysis of the limiting protrusion 121, effectively prevents the installation failure between the connection frame 10 and the adapter frame 20, and has a stable and reliable structure.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A mounting structure of a vehicle bumper assembly, the mounting structure comprising:
the connecting frame comprises a connecting plate and a plugboard, wherein the connecting plate is connected to the plugboard, a connecting hole for the connecting column to extend in is formed in the connecting plate, and the connecting column is spliced in the connecting hole along the Y direction;
the switching frame comprises a bottom plate and a coaming, wherein the coaming is connected with the bottom plate and forms a containing cavity with the bottom plate, the containing cavity is provided with a mounting opening, the plugboard stretches into the containing cavity along the Y direction from the mounting opening, and a switching column is arranged on one side of the bottom plate, which is away from the containing cavity;
the mounting frame, set up on the mounting frame and supply the mounting hole that the switching post stretches into, the switching post along Z along the direction peg graft in the mounting hole, the mounting frame in X to, Y to, Z upwards support tightly and connect in the automobile body of vehicle.
2. The mounting structure of a vehicle bumper assembly according to claim 1, wherein a limit groove is provided on a side of the bottom plate facing the accommodating chamber, the limit groove is located at one end of the accommodating chamber away from the mounting opening, the plug board abuts against a chamber wall of the accommodating chamber in the Z direction, a limit protrusion is provided on the plug board, the limit protrusion is mounted in the limit groove, and a gap between the limit protrusion and a groove wall of the limit groove in the Y direction is not more than 0.5mm.
3. The mounting structure of a vehicle bumper assembly according to claim 2, wherein at least one deformation groove is formed in the plug board, the deformation groove separates the plug board into an elastic sheet and a limiting sheet, the elastic sheet is provided with the limiting protrusion, a gap between the limiting sheet and a cavity wall of the accommodating cavity in the X direction is not more than 1.5mm, a gap between the limiting sheet and the cavity wall of the accommodating cavity in the Y direction is not more than 0.5mm, and a gap between the limiting sheet and the cavity wall of the accommodating cavity in the Z direction is not more than 0.1mm.
4. The mounting structure of a vehicle bumper assembly according to claim 3, wherein the bottom plate includes a support section and a avoidance section, the support section is provided with the limit groove, the plug board is abutted against the support section in the Z direction, and the avoidance section is inclined from the support section in a direction away from the mounting frame, so that the accommodating cavity is gradually widened in a direction close to the mounting opening.
5. The mounting structure of a vehicle bumper assembly according to claim 4, wherein the support section is provided with a limit rib and two support ribs, the two support ribs are arranged at intervals along the X direction, two ends of the limit rib are respectively connected with the two support ribs, the limit rib and the two support ribs enclose a limit groove therebetween, the plug board is abutted against and supported on the support ribs in the Z direction, and a gap between the limit protrusion and the limit rib in the Y direction is not greater than 0.5mm.
6. The mounting structure of a vehicle bumper assembly according to claim 5, wherein a guide block is arranged on one side of the limit rib, which is away from the limit groove, and is provided with a first guide slope which is obliquely arranged, and the distance between the first guide slope and the support section is gradually reduced along the direction approaching the mounting opening; and a second guiding slope is formed at one end of each supporting rib, which is close to the mounting opening, and the distance between the second guiding slope and the supporting section is gradually reduced along the direction, which is close to the mounting opening.
7. The mounting structure of a vehicle bumper assembly according to claim 4, wherein an avoidance opening is formed in an end, away from the mounting opening, of the surrounding plate, the elastic sheet extends out of the accommodating cavity from the avoidance opening, and one end, close to the avoidance opening, of the elastic sheet is bent in a direction away from the supporting section.
8. The mounting structure of a vehicle bumper assembly according to any one of claims 1 to 7, wherein a plurality of insertion pieces are provided on the outer periphery of the connecting column, the plurality of insertion pieces are provided at intervals along the outer periphery of the connecting column, insertion grooves into which the insertion pieces extend are provided on the connecting plate at positions corresponding to the insertion pieces, and the insertion pieces are inserted into the insertion grooves provided corresponding thereto; the gap between the plug-in piece and the groove wall of the plug-in groove in the X direction is not more than 0.1mm, the plug-in piece is propped against the groove wall of the plug-in groove in the Y direction, and the gap between the plug-in piece and the groove wall of the plug-in groove in the Z direction is not more than 0.1mm.
9. The mounting structure of a vehicle bumper assembly according to any one of claims 1 to 7, wherein at least two positioning grooves are formed in the bumper assembly at intervals, one positioning piece is disposed on the connecting plate at a position corresponding to each positioning groove, and each positioning piece is mounted in the corresponding positioning groove.
10. A vehicle comprising a body, a bumper assembly and a mounting structure as claimed in any one of claims 1 to 9, the body comprising a radiator support, the mounting being connected to the radiator support, the bumper assembly comprising a connector base on which the connector post is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310151938.2A CN115991162A (en) | 2023-02-22 | 2023-02-22 | Mounting structure of vehicle bumper assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310151938.2A CN115991162A (en) | 2023-02-22 | 2023-02-22 | Mounting structure of vehicle bumper assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115991162A true CN115991162A (en) | 2023-04-21 |
Family
ID=85992086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310151938.2A Pending CN115991162A (en) | 2023-02-22 | 2023-02-22 | Mounting structure of vehicle bumper assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115991162A (en) |
-
2023
- 2023-02-22 CN CN202310151938.2A patent/CN115991162A/en active Pending
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