CN113276948A - Positioning and mounting structure and mounting method of automobile front-end module - Google Patents

Positioning and mounting structure and mounting method of automobile front-end module Download PDF

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Publication number
CN113276948A
CN113276948A CN202110739130.7A CN202110739130A CN113276948A CN 113276948 A CN113276948 A CN 113276948A CN 202110739130 A CN202110739130 A CN 202110739130A CN 113276948 A CN113276948 A CN 113276948A
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CN
China
Prior art keywords
positioning
connecting plate
end module
mounting structure
frame
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Pending
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CN202110739130.7A
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Chinese (zh)
Inventor
刘其文
颜城敏
曾晖
袁东
李�杰
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Lantu Automobile Technology Co Ltd
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Dongfeng Motor Corp
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Priority to CN202110739130.7A priority Critical patent/CN113276948A/en
Publication of CN113276948A publication Critical patent/CN113276948A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24Arrangements for mounting bumpers on vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24Arrangements for mounting bumpers on vehicles
    • B60R2019/247Fastening of bumpers' side ends

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The application relates to a positioning and mounting structure and a positioning and mounting method for an automobile front-end module, and relates to the field of automobile front structure design. The one end tip that the driver's cabin was kept away from to each front longitudinal among this location mounting structure all is equipped with first connecting plate, one side that front longitudinal was kept away from to first connecting plate is equipped with auxiliary positioning board, all be equipped with first connecting portion in each vertical frame of front end frame, the both ends of anticollision roof beam are equipped with the second connecting plate respectively, first connecting portion are used for fixing with first connecting plate and second connecting plate respectively, so that the length of the horizontal frame of front end frame is not less than predetermineeing length, auxiliary positioning board is used for revising the front end frame when fixed with first connecting plate, because the position error of two front longitudinal and the positioning error who produces, and make the front end frame all be greater than predetermineeing the error along vertical direction and horizontal direction's positioning error. The positioning and mounting structure solves the problems that the length of a front end frame is limited and the positioning accuracy of a front end assembly is poor in the related art.

Description

Positioning and mounting structure and mounting method of automobile front-end module
Technical Field
The application relates to the field of design of automobile front structures, in particular to a positioning and mounting structure and a positioning and mounting method of an automobile front-end module.
Background
At present, automobiles become common tools in daily life of people as vehicles, the attention degree of consumers on the performance and the quality of the automobiles is increased day by day, and the improvement of the dynamic performance and the comfort performance of the automobiles becomes an important measure for various manufacturers to improve the competitiveness. The improvement of the air conditioning effect requires that the engine and/or the motor provide a larger power output, and the cooling capacity of the cooling module needs to be further improved while the power performance is improved. The front end frame as the cooling module assembling frame is limited in its inner dimension by each cooling module, and in its outer dimension by the interval between the left and right side members of the automobile body, the length of the side members, and the height of the side member columns.
In the related art, a front end frame is often assembled between a left longitudinal beam and a right longitudinal beam, under the limitation of a platform framework of a mature vehicle type, the distance between the left longitudinal beam and the right longitudinal beam of a vehicle body is not changeable, namely, the length of the front end frame is difficult to increase, and the front face height of the vehicle is raised by lengthening longitudinal beam upright posts, namely, the height of the front end frame is also increased, so that the gravity center and the wind resistance coefficient of the vehicle are increased, and the reduction of the operation performance and the power performance of the vehicle is reduced. The arrangement mode of present fuel car or electric automobile's cooling system in the automobile front deck is similar to traditional fuel car mostly, adopt the serial-type structure of vertical type, be about to battery radiator, motor radiator, condenser, cooling fan etc. radiating part from the past backward upright arrange, increase the thickness of front end frame, can lead to cooling air flow at the inside disorder that flows in cabin, the air resistance loss is great, lead to whole car energy consumption to increase, the power economy nature of vehicle worsens, do not promote heat dispersion.
Simultaneously, along with the intelligent development of car, ADAS advanced driving assistance system's assembly ratio is higher and higher, one of the technological problem of this system is the stability that improves the sensor fixed point, so that the sensor between whole car batch can both exert the setting and can supply, the common fixed part of sensor is front end frame or preceding crashproof roof beam, because front end frame is as the working of plastics, need assemble in the final assembly workshop, and traditional front end frame is the via hole at the fixed point on the automobile body, lack the location of system, make the Z of front end frame to highly stable relatively poor. The front anti-collision beam can be assembled in a welding workshop or a general assembly workshop, but is influenced by the opposite situation of the front longitudinal beam of the vehicle body, and the positioning precision of the front anti-collision beam is also influenced.
Disclosure of Invention
The embodiment of the application provides a positioning and mounting structure and a mounting method of an automobile front-end module, and aims to solve the problems that the length of a front-end frame is limited and the positioning accuracy of a front-end assembly is poor in the related art.
In a first aspect, a positioning and mounting structure for a front end module of an automobile is provided, which includes:
the front longitudinal beam comprises two front longitudinal beams arranged at intervals, wherein a first connecting plate is arranged at the end part of one end, away from a cab, of each front longitudinal beam, and an auxiliary positioning plate is arranged on one side, away from the front longitudinal beams, of each first connecting plate;
the front end frame is internally provided with a first connecting part in each vertical frame;
the two ends of the anti-collision beam are respectively provided with a second connecting plate; wherein the content of the first and second substances,
the first connecting portion are used for being fixed with the first connecting plate and the second connecting plate respectively, so that the length of a horizontal frame of the front end frame is not smaller than a preset length, the auxiliary positioning plate is used for correcting positioning errors generated due to position errors of two front longitudinal beams when the front end frame is fixed with the first connecting plate, and the positioning errors of the front end frame in the vertical direction and the horizontal direction are not larger than the preset errors.
In some embodiments, the first connecting plate is provided with a second connecting portion and a plurality of first fixing holes arranged around the second connecting portion at intervals, the second connecting portion is located in the middle of the first connecting plate and extends to protrude in a direction close to the front longitudinal beam, the second connecting portion is used for connecting the first connecting plate and the front longitudinal beam, and the first connecting plate is further provided with a first positioning adjusting hole.
In some embodiments, the auxiliary positioning plate is provided with a plurality of second fixing holes arranged at intervals and at least two second positioning adjusting holes arranged at intervals, and the second positioning adjusting holes are used for being matched with the first positioning adjusting holes so as to adjust the position of the auxiliary positioning plate along the vertical direction and the position of the auxiliary positioning plate along the horizontal direction, so as to correct the positioning error of the auxiliary positioning plate, which is generated due to the position error of the two front longitudinal beams.
In some embodiments, the first connecting portion is a recessed portion facing a direction close to the auxiliary positioning plate, the first connecting portion is provided with a plurality of third fixing holes and a third positioning adjusting hole arranged at intervals, and the third positioning adjusting hole is used for being matched with the second positioning adjusting hole to jointly realize the positioning of the front end frame along the vertical direction and the horizontal direction respectively.
In some embodiments, the third positioning adjustment hole on one of the first connection portions is oblong and horizontally disposed, the height dimension of the oblong third positioning adjustment hole is smaller than the diameter dimension of the second positioning adjustment hole, and the third positioning adjustment hole on the other of the first connection portions is circular or square and has a dimension smaller than the diameter dimension of the second positioning adjustment hole.
In some embodiments, a positioning pin is disposed on a side of each of the first connecting portions away from the auxiliary positioning plate, a fourth positioning adjusting hole is disposed on each of the second connecting plates, one of the fourth positioning adjusting holes is a circular hole matching with the positioning pin, and the other fourth positioning adjusting hole is oblong and horizontally disposed, and has a height dimension consistent with a diameter dimension of the positioning pin.
In some embodiments, a plurality of fourth fixing holes are formed in the second connecting plate at intervals, and the diameters of the first fixing hole, the second fixing hole, the third fixing hole and the fourth fixing hole are sequentially increased.
In some embodiments, the auxiliary positioning plate is welded to the first connecting plate.
In some embodiments, the predetermined length is 950 to 1050mm, and the predetermined error is 0.4 to 0.6 mm.
In a second aspect, there is also provided a method of installation, comprising the steps of:
respectively attaching and fixing two second connecting plates with a first connecting part in each vertical frame of the front-end frame to form a front-end module assembly, so that the length of the horizontal frame of the front-end frame is not less than the preset length;
respectively attaching and fixing the auxiliary positioning plates to the corresponding first connecting plates to correct positioning errors generated by position errors of the two front longitudinal beams, so that the positioning errors of the front end frame along the vertical direction and the horizontal direction are not more than preset errors;
and positioning the front end module assembly by using the auxiliary positioning plate, and then attaching and fixing the front end module assembly and the auxiliary positioning plate.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a location mounting structure of car front end module, it is through setting up first connecting portion in the vertical frame of front end frame to after the corresponding tip of front longitudinal set gradually first connecting plate and auxiliary positioning board, realize being connected fixedly through auxiliary positioning board and first connecting plate and two front longitudinal beams with the front end module assembly that front end frame and anticollision roof beam formed at last. The front end frame among this location mounting structure compares traditional front end frame and can do bigger along the ascending size of length direction, the fine arrangement that satisfies cooling system of ability, guarantee the cooling performance of car, the setting up of auxiliary positioning board can be fine in addition revise front end frame when fixed with first connecting plate, because the position error of two front longitudinal beams and the positioning error who produces, can guarantee that front end frame is all not greater than the error of predetermineeing along vertical direction and horizontal direction's positioning error, guarantee positioning accuracy.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a positioning and mounting structure of an automobile front-end module according to an embodiment of the present application;
fig. 2 is a schematic structural view of a front side member of a positioning and mounting structure of an automobile front end module according to an embodiment of the present application;
fig. 3 is a schematic structural view of a first connecting plate of a positioning and mounting structure of an automobile front-end module according to an embodiment of the present application;
fig. 4 is a schematic structural view of an auxiliary positioning plate of a positioning and mounting structure of an automobile front-end module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of a second connecting plate of the positioning and mounting structure of the automobile front end module according to the embodiment of the present application;
fig. 6 is a schematic structural diagram of a front end frame of a positioning and mounting structure of an automobile front end module according to an embodiment of the present application.
In the figure: 1-front longitudinal beam, 10-outer side plate, 11-inner side plate, 2-first connecting plate, 20-second connecting part, 21-first fixing hole, 22-first positioning adjusting hole, 3-auxiliary positioning plate, 30-second fixing hole, 31-second positioning adjusting hole, 4-front end frame, 40-first connecting part, 41-third fixing hole, 42-third positioning adjusting hole, 43-positioning pin, 44-fifth positioning hole, 5-anti-collision beam, 50-second connecting plate, 51-fourth fixing hole, 52-fourth positioning adjusting hole, 53-anti-collision beam body, 54-energy absorption box, 55-connecting bracket, 56-sixth positioning hole, 60-engine cover lock and 61-engine cover lock connecting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a positioning and mounting structure of an automobile front-end module, which can solve the problems of limited length of a front-end frame and poor positioning accuracy of a front-end assembly in the related art.
Referring to fig. 1, the positioning and mounting structure mainly comprises two front longitudinal beams 1 arranged at intervals, a front end frame 4 and an anti-collision beam 5, wherein a first connecting plate 2 is arranged at one end part of each front longitudinal beam 1 far away from a cab, an auxiliary positioning plate 3 is arranged at one side of each first connecting plate 2 far away from the front longitudinal beam 1, a first connecting part 40 is arranged in each vertical frame of the front end frame 4, and second connecting plates 50 are arranged at two ends of the anti-collision beam 5 respectively; wherein, first connecting portion 40 is used for respectively being fixed with first connecting plate 2 and second connecting plate 50 to make the length of the horizontal frame of front end frame 4 not less than predetermineeing length, auxiliary positioning board 3 is used for revising front end frame 4 when fixed with first connecting plate 2, because the positioning error that two front longitudinal beams 1's position error produced, and make front end frame 4 all be not greater than predetermineeing the error along the positioning error of vertical direction and horizontal direction.
Specifically, a cooling module is arranged in the front end frame 4, an engine cover lock 60 and an engine cover lock connecting plate 61 are further sequentially arranged on a horizontal frame above the front end frame 4, and here, the front end frame 4, the cooling module, the engine cover lock 60, the engine cover lock connecting plate 61 and the anti-collision beam 5 together form a front end module assembly. The anti-collision beam 5 mainly comprises an anti-collision beam body 53, two second connecting plates 50, energy absorption boxes 54 respectively positioned on the two second connecting plates 50 and a connecting support 55 positioned in the middle of the anti-collision beam body 53, and the components can be welded into a whole or assembled into a whole through assembling structures such as bolts, rivets and the like. In addition, as shown in fig. 2, one end of each front side member 1 near the front end frame 4 is formed by an outer side plate 10 and an inner side plate 11, wherein the outer side plate 10 is a plane structure, the inner side plate 11 is a U-shape, and the open end of the inner side plate 11 and the outer side plate 10 are attached to each other and welded to form a main body structure of the front side member 1, so that one end of the front side member 1 near the front end frame 4 is a square cavity structure.
Further, as shown in fig. 3, the first connecting plate 2 is provided with a second connecting portion 20 and a plurality of first fixing holes 21 spaced around the second connecting portion 20, the second connecting portion 20 is located in the middle of the first connecting plate 2 and extends in a direction close to the front side member 1 to form a protrusion, wherein the size of the second connecting portion 20 matches with the size of the cavity structure at the end of the front side member 1 close to the front end frame 4, when connecting, the second connecting portion 20 is located in the end of the front side member 1, and four surfaces of the second connecting portion 20 are all welded to the inner side wall at the end of the front side member 1. Therefore, the second connecting portion 20 is used for connecting the first connecting plate 2 and the front side member 1, and the first connecting plate 2 is further provided with a first positioning adjusting hole 22 for matching the positioning of the auxiliary positioning plate 3.
Further, referring to fig. 4, the auxiliary positioning plate 3 is a stamping part, and is provided with a plurality of second fixing holes 30 arranged at intervals and at least two second positioning adjusting holes 31 arranged at intervals, and the second positioning adjusting holes 31 are used for being matched with the first positioning adjusting holes 22 to adjust the position of the auxiliary positioning plate 3 along the vertical direction and the position of the auxiliary positioning plate 3 along the horizontal direction so as to correct the positioning error of the auxiliary positioning plate 3 caused by the position error of the two front longitudinal beams 1. Specifically, the second positioning hole 31 is used for positioning the auxiliary positioning plate 3 in the horizontal direction and the vertical direction under the action of the welding jig, and the positioning in the direction perpendicular to the first connecting plate 2 is mainly realized by the fitting of the adjacent surfaces of the auxiliary positioning plate 3 and the first connecting plate 2.
Specifically, from the perspective of structural design, the number of the second positioning adjustment holes 31 is preferably 2, and the second positioning adjustment holes 31 are respectively arranged at intervals in the vertical direction, wherein the second positioning adjustment hole 31 located above is used for positioning in the vertical direction, and therefore, the shape of the second positioning adjustment hole is preferably square, and besides, the second positioning adjustment hole may also be a suitable shape such as rectangle or circle; the second positioning regulation hole 31 located below is used for positioning in the horizontal direction, and therefore, the shape thereof is preferably oblong and distributed in the vertical direction, and in addition to this, it may be rectangular or the like distributed in the vertical direction. Or the upper second positioning adjusting hole 31 is used for positioning in the horizontal direction, and the lower second positioning adjusting hole 31 is used for positioning in the vertical direction.
Specifically, because the area of first connecting plate 2 and auxiliary positioning board 3 itself is limited, and all need to set up a plurality of interval distribution's through-hole on it, if too closely then have great influence to the structural strength of self, consequently, auxiliary positioning board 3 is greater than first connecting plate 2's size along the size of vertical direction, and the second location regulation hole 31 that is located the below is located this region, has also avoided like this to set up at the corresponding position of first connecting plate 2 and has dodged the hole and come the fixed with supplementary welding jig.
Specifically, because the front longitudinal 1 that the automobile body is located the left and right sides is long cantilever structure, under the accumulative total effect of part tolerance and welding process tolerance, it is corresponding, there is great fluctuation in relative height and the distance of first connecting plate 2 of locating left and right front longitudinal 1 tip, in actual automobile production, the error that general this kind of fluctuation produced all is not less than 3mm, if front end module assembly direct mount is on first connecting plate 2, will cause the height of front end module assembly left and right sides to be inconsistent, control the position misalignment. Therefore, by providing the auxiliary positioning plate 3 on the basis of the first connecting plate 2, in the specific setting, the position of the auxiliary positioning plate 3 is adjusted by the welding jig through the two second positioning adjusting holes 31 thereon, and then the auxiliary positioning plate 3 is welded and fixed to the first connecting plate 2, so as to correct the positioning error caused by the position error of the left and right front longitudinal beams 1. Under the positioning of the welding fixture, the auxiliary positioning plate 3 is positioned and welded with the vehicle body through the two second positioning adjusting holes 31, so that a body-in-white assembly is formed, and the accuracy in the vertical direction and the horizontal direction is ensured by the auxiliary positioning plate 3 without being influenced by the position fluctuation of the left front longitudinal beam 1 and the right front longitudinal beam 1.
Further, see that fig. 6 shows, front end frame 4 is whole for the quadrangle, and the middle part is for holding the vacancy portion that cooling module formed, and the left and right sides of the horizontal frame that is located the top of front end frame 4 respectively has a horizontal plane, and wherein the horizontal plane of both sides provides the stationary plane for the lamp plate roof beam, and the lamp plate roof beam is located the top of front longitudinal 1, and the other end of lamp plate roof beam is installed on white car. All be equipped with first connecting portion 40 on two vertical frames of front end frame 4, first connecting portion 40 is for being close to the depressed part of 3 directions of auxiliary positioning board towards, is equipped with the third fixed orifices 41 and a third location regulation hole 42 that a plurality of intervals set up on first connecting portion 40, and third location regulation hole 42 is used for with the cooperation of second location regulation hole 31 in order to realize front end frame 4 respectively along vertical direction and horizontal direction's location jointly.
Further, a third positioning adjustment hole 42 on one of the first connecting portions 40 is oblong and horizontally disposed, the height dimension of the oblong third positioning adjustment hole 42 is smaller than the diameter dimension of the second positioning adjustment hole 31, and the third positioning adjustment hole 42 on the other connecting portion 40 is circular or square and is smaller than the diameter dimension of the second positioning adjustment hole 31.
Specifically, the front-end module assembly is formed by combining and assembling the anti-collision beam 5 and the front-end frame 4, and then the front-end module assembly is connected and fixed with the front longitudinal beam 1 by being connected with the auxiliary positioning plate 3 and the first connecting plate 2. Since the position of the auxiliary positioning plate 3 is an accurate position, when the front end module assembly is installed, the front end module assembly needs to be installed and fixed by using the position of the auxiliary positioning plate 3 as a reference, and therefore, when the front end module assembly is installed, an installation tool needs to be used for positioning and aligning the third positioning and adjusting holes 42 on the two first connecting portions 40 with the second positioning and adjusting holes 31 respectively so as to ensure the positioning accuracy in the horizontal direction and the vertical direction.
Further, referring to fig. 5, a plurality of fourth fixing holes 51 are formed in the second connecting plate 50 at intervals, and when the third positioning adjusting holes 42 are aligned with the second positioning adjusting holes 31 respectively to ensure positioning accuracy in the horizontal direction and the vertical direction, four positioning bolts are used to sequentially pass through the fourth fixing holes 51, the third fixing holes 41, the second fixing holes 30 and the first fixing holes 21, and then are connected and fixed with nuts located at the first fixing holes 21. For positioning convenience, the first fixing hole 21, the second fixing hole 30, the third fixing hole 41 and the fourth fixing hole 51 are sequentially increased in diameter size. In addition, the third fixing holes 41 are all provided with sleeve structures to reinforce the third fixing holes 41, so that the front end frame 4 is prevented from being damaged under the action of the pre-tightening force of the positioning bolts, and the moment attenuation of the bolts on the soft material can also be avoided.
Further, the anti-collision beam 5 also needs to have a corresponding positioning when being connected with the front end frame 4, so as to ensure the accuracy of the relative position, therefore, a positioning pin 43 is further arranged on one side of each first connecting portion 40 away from the auxiliary positioning plate 3, a fourth positioning adjusting hole 52 is arranged on each second connecting plate 50, one of the fourth positioning adjusting holes 52 is a circular hole matched with the positioning pin 43, the other fourth positioning adjusting hole 52 is oblong and horizontally arranged, and the height dimension of the fourth positioning adjusting hole is consistent with the diameter dimension of the positioning pin 43. On the basis, at least one fifth positioning hole 44 is further formed in the first connecting portion 40, a sixth positioning hole 56 matched with the fifth positioning hole 44 is formed in the second connecting plate 50, after the anti-collision beam 5 is positioned with the front end frame 4 through the positioning pin 43 and the fourth positioning adjusting hole 52, the anti-collision beam is fixed by penetrating the sixth positioning hole 56 and the fifth positioning hole 44 through the fixing bolt, and correspondingly, corresponding avoiding holes are formed in the first connecting plate 2 and the auxiliary positioning plate 3.
Furthermore, the preset length is 950-1050 mm, and the preset error is 0.4-0.6 mm, after the positioning and mounting structure is adopted, the length of the front frame is at least increased by 15cm compared with the length of the traditional front end frame 4, and the positioning error of the front end module assembly is reduced to be very low, so that the precision standard can be well achieved basically.
The application also provides an installation method, which is used for installing the positioning installation structure of the automobile front-end module and mainly comprises the following steps:
respectively attaching and fixing two second connecting plates 50 to the first connecting parts 40 positioned in each vertical frame of the front-end frame 4 to form a front-end module assembly, so that the length of the horizontal frame of the front-end frame 4 is not less than the preset length;
respectively attaching and fixing the auxiliary positioning plates 3 to the corresponding first connecting plates 2 to correct positioning errors generated by position errors of the two front longitudinal beams 1, so that the positioning errors of the front end frame 4 in the vertical direction and the horizontal direction are not larger than preset errors;
the front end module assembly is positioned by the auxiliary positioning plate 3, and then the front end module assembly is attached and fixed with the auxiliary positioning plate 3.
Furthermore, punch at first connecting plate 2 and establish first location regulation hole 22, establish second location regulation hole 31 along vertical direction interval respectively on supplementary locating plate 3, utilize welding jig, utilize two second location regulation holes 31 to realize the position adjustment of relative first connecting plate 2 to supplementary locating plate 3 to the position error that front longitudinal 1 brought is rectified. After the correction is finished, the auxiliary positioning plate 3 is welded to the first connecting plate 2.
Further, after the auxiliary positioning plate 3 is fixed in position, the position correction of the front longitudinal beam 1 is already realized, so that the anti-collision piles and the front end frame 4 are firstly assembled and mounted at the moment, and a front end module assembly is formed after the assembly and mounting, so that the front end module assembly needs to be connected with the front longitudinal beam 1 through the auxiliary positioning plate 3 and the first connecting plate 2 on the next step. Then, the third positioning adjustment holes 42 are punched on the first connection portions 40, the shapes of the third positioning adjustment holes 42 on the two first connection portions 40 are different, one is in an oblong shape and the other is in a circular shape, the third positioning adjustment holes can be used for positioning along the vertical direction and the horizontal direction together with the aid of an installation tool, and finally, the four fixing bolts respectively penetrate through the second connection plate 50, the first connection portions 40, the auxiliary positioning plate 3 and the first connection plate 2 to realize connection and fixation.
Compared with the traditional installation method, the installation method can firstly carry out split charging on the front end frame 4 and the anti-collision beam 5 to form the front end module assembly, obviously reduces the assembly time of assembling a main line in a general assembly workshop, and avoids the formation of a main line bottleneck process; in addition, the first connecting part 40 is arranged on the front end frame 4, so that the front end module assembly and the front longitudinal beam 1 are connected and fixed, compared with the traditional connecting structure and connecting mode, the installation method does not need to reserve an installation gap at the position of the first connecting part 40, so that the length of the front end frame 4 can be maximized, the length maximization of the cooling module becomes possible, the arrangement of a cooling system is facilitated, and the improvement of the cooling performance of an automobile is facilitated; finally, the auxiliary positioning plate 3 is arranged, so that position errors generated between the left and right front longitudinal beams 1 can be corrected accurately and quickly, and the position accuracy of the front end module assembly is guaranteed.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A positioning and mounting structure of an automobile front-end module is characterized by comprising:
the front side frame comprises two front longitudinal beams (1) arranged at intervals, wherein a first connecting plate (2) is arranged at one end part of each front longitudinal beam (1) far away from a cab, and an auxiliary positioning plate (3) is arranged on one side of each first connecting plate (2) far away from the front longitudinal beam (1);
a front end frame (4), wherein a first connecting part (40) is arranged in each vertical frame;
the two ends of the anti-collision beam (5) are respectively provided with a second connecting plate (50); wherein the content of the first and second substances,
first connecting portion (40) be used for respectively with first connecting plate (2) and second connecting plate (50) are fixed, so that the length of the horizontal frame of front end frame (4) is not less than predetermineeing length, assistance-localization real-time board (3) are used for revising front end frame (4) when with first connecting plate (2) are fixed, because two the positioning error that the position error of front longitudinal (1) and produce, and make front end frame (4) are all not greater than predetermineeing the error along the positioning error of vertical direction and horizontal direction.
2. A positioning and mounting structure of an automobile front-end module, as recited in claim 1, wherein: be equipped with second connecting portion (20) and a plurality of interval on first connecting plate (2) and locate first fixed orifices (21) around second connecting portion (20), second connecting portion (20) are located the middle part of first connecting plate (2), and follow and be close to the direction of front longitudinal (1) extends protrudingly, second connecting portion (20) are used for connecting first connecting plate (2) and front longitudinal (1), still be equipped with first positioning adjustment hole (22) on first connecting plate (2).
3. A positioning and mounting structure of an automobile front-end module, as recited in claim 2, wherein: be equipped with second fixed orifices (30) that a plurality of intervals set up and second positioning adjustment hole (31) that two at least intervals set up on auxiliary positioning board (3), second positioning adjustment hole (31) are used for cooperating with first positioning adjustment hole (22), in order to adjust auxiliary positioning board (3) are along the position of vertical direction and along the position of horizontal direction, in order to revise auxiliary positioning board (3) are because two the positioning error that the position error of front longitudinal (1) produced.
4. A positioning and mounting structure of an automobile front-end module, according to claim 3, wherein: first connecting portion (40) are for being close to the depressed part of auxiliary positioning board (3) direction, be equipped with third fixed orifices (41) and a third location regulation hole (42) that a plurality of intervals set up on first connecting portion (40), third location regulation hole (42) be used for with second location regulation hole (31) cooperation is in order to realize jointly front end frame (4) are along vertical direction and horizontal direction's location respectively.
5. A positioning and mounting structure of an automobile front-end module, according to claim 4, wherein: one of them third location regulation hole (42) on first connecting portion (40) are obround and level setting, are the obround the height dimension of third location regulation hole (42) is less than the diameter size of second location regulation hole (31), another third location regulation hole (42) on first connecting portion (40) are circular or square, and the size is less than the diameter size of second location regulation hole (31).
6. A positioning and mounting structure of an automobile front-end module, according to claim 4, wherein: each first connecting portion (40) is kept away from all be equipped with a locating pin (43) on one side of auxiliary positioning board (3), each all be equipped with a fourth location regulation hole (52) on second connecting plate (50), and one of them fourth location regulation hole (52) be with the circular port that locating pin (43) matches, another fourth location regulation hole (52) are obround and level setting, and its height dimension with the diameter size of locating pin (43) is unanimous.
7. A positioning and mounting structure of an automobile front-end module, according to claim 4, wherein: the second connecting plate (50) is provided with a plurality of fourth fixing holes (51) which are arranged at intervals, and the diameter sizes of the first fixing holes (21), the second fixing holes (30), the third fixing holes (41) and the fourth fixing holes (51) are sequentially increased.
8. A positioning and mounting structure of an automobile front-end module, as recited in claim 1, wherein: the auxiliary positioning plate (3) is welded with the first connecting plate (2).
9. A positioning and mounting structure of an automobile front-end module, as recited in claim 1, wherein: the preset length is 950-1050 mm, and the preset error is 0.4-0.6 mm.
10. A method of mounting a positioning and mounting structure for a front end module of an automobile according to claim 1, comprising the steps of:
respectively attaching and fixing two second connecting plates (50) with first connecting parts (40) positioned in each vertical frame of a front-end frame (4) to form a front-end module assembly, so that the length of a horizontal frame of the front-end frame (4) is not less than a preset length;
respectively attaching and fixing the auxiliary positioning plates (3) to the corresponding first connecting plates (2) to correct positioning errors generated by position errors of the two front longitudinal beams (1), so that the positioning errors of the front end frame (4) along the vertical direction and the horizontal direction are not larger than preset errors;
and the auxiliary positioning plate (3) is utilized to position the front end module assembly, and then the front end module assembly is attached and fixed with the auxiliary positioning plate (3).
CN202110739130.7A 2021-06-30 2021-06-30 Positioning and mounting structure and mounting method of automobile front-end module Pending CN113276948A (en)

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CN101445131A (en) * 2008-07-22 2009-06-03 上汽通用五菱汽车股份有限公司 Closed tail beam structure
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