CN213892685U - Positioning assembly part and vehicle body framework thereof - Google Patents

Abstract

The utility model relates to a positioning assembly part, which comprises a first upper body and a first lower body which are assembled and fixed with each other, wherein the first upper body comprises a first upper body base and a first upper connecting piece fixed on the outer side surface of the first upper body base; the utility model discloses still relate to the automobile body skeleton, its automobile body A post upper portion, pass through positioning assembly spare fixed connection with side wall A post upper portion. The utility model discloses a body rotates around first body axis on setting up the first of location assembly part, realizes diversified, multi-angle assembly, and the application mode is nimble.

Description

Positioning assembly part and vehicle body framework thereof

Technical Field

The utility model relates to an automobile body structure, in particular to positioning assembly spare and automobile body skeleton thereof.

Background

The production and manufacturing of the automobile are divided into four production processes of stamping, welding, coating and final assembly, the automobile body framework of the automobile can enter a final assembly workshop to be matched with other automobile parts to be installed into an automobile product after three processes of die stamping, welding assembly and coating corrosion prevention, and the automobile body framework is used as an important carrier of the automobile and is the only core part penetrating through the four production processes.

The traditional automobile body is manufactured by welding hundreds of stamping parts into dozens of sub-assemblies, then the sub-assemblies are connected through an assembly welding line, and finally the sub-assemblies are welded into a body framework assembly through an assembly splicing line, so that large-area land resource utilization is needed, large manufacturing workshops and production equipment of input product lines are constructed and planned, and huge cost of billions or even billions is paid in aspects of energy consumption, material transfer, environmental pollution, personnel recruitment, management training, potential safety hazards and the like.

Under traditional assembly form, the automobile body skeleton has welded into cage frame structure completely, and the assembly workman need take instrument and spare part to creep into out, and especially large-scale spare part assembles the difficulty under cage frame structure, has the dead angle space and applies the actual conditions that does not open, has influenced production timeliness.

Chinese patent publication No. CN103979016A discloses a lightweight electric vehicle body frame, which includes a left side vehicle body frame, a right side vehicle body frame, a roof, and a front glass bracket made of carbon fiber reinforced composite material, wherein the left side vehicle body frame and the right side vehicle body frame are assembled with the roof and the front glass bracket by means of glue joint and bolt fastening, respectively, to obtain a space cage-shaped tubular vehicle body frame; the four blocks are respectively divided into an inner sheet and an outer sheet by taking the joint edge area as a sheet dividing line, the inner sheet and the outer sheet are connected in a glue joint mode in the joint edge area, the assembly of the automobile body framework is only assembled in a glue joint mode and a bolt fixing mode, the positioning effect is poor, the assembly efficiency is low, and the assembly form is single.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a positioning assembly spare and automobile body skeleton thereof to overcome the problem that the location effect that prior art exists is poor, assembly efficiency is low, the assembly form is single.

In order to achieve the above object, the utility model provides a following technical scheme: a positioning assembly part comprises a first upper body and a first lower body which are assembled and fixed with each other, wherein the first upper body comprises a first upper body base and a first upper connecting piece fixed on the outer side surface of the first upper body base, the first lower body comprises a first lower body base and a first lower connecting piece fixed on the inner side surface of the first lower body base and coaxial with the first lower body base, the axis of the first upper body base is vertical to the axis of the first upper connecting piece, the first lower connecting piece is provided with a first accommodating groove penetrating through the first lower body base, and the first upper connecting piece is arranged in the first accommodating groove and rotates around the axis of the first lower body base.

The first upper connecting piece comprises a first upper section, a first middle section and a first lower section, the first upper section is integrally connected with the first upper body base, the first lower section is a cylinder or a hemisphere or an ellipsoid, and the first middle section and the first lower section are correspondingly matched and arranged in the first accommodating groove.

The first upper connecting piece is provided with a first upper body screw hole which sequentially penetrates through the first upper section, the first middle section and the first lower section, a first lower body screw hole is formed in the bottom of the first accommodating groove, internal threads are formed in the first lower body screw hole, and a bolt penetrates through the first upper body screw hole and is connected with the internal threads of the first lower body screw hole in an occlusion mode.

The first middle section and the first lower section are correspondingly matched and arranged in the first containing groove and fixed in a gluing or riveting mode.

The first upper section and the joint of the first upper body base are provided with first reinforcing ribs, and the inner side surface of the first upper body base is hollowed.

And a plurality of second reinforcing ribs are uniformly arranged on the outer side surface of the first lower connecting piece.

In order to achieve the above object, the present invention also provides the following technical solutions: the utility model provides a car body frame, its includes automobile body A post, side wall A post down, automobile body A post upper portion down, with side wall A post upper portion pass through locating assembly spare fixed connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model assembles the left side wall, the right side wall and the upper part of the lower body through the positioning assembly part, can accurately position the left side wall, the right side wall and the lower body in the installation process, and automatically corrects the welding deformation of the framework, so that the assembly hard spot region reaches the design requirement;

2. the first upper body of the positioning assembly part rotates around the axis of the first lower body, so that multi-direction and multi-angle assembly is realized, and the application mode is flexible; first last connecting piece adorn in the first accepting groove, the first middle section of first last connecting piece is plum blossom cylindricality structure, plays module assembly angle correction effect, takes place crooked phenomenon when revising the direction assembly, also can reduce assembly friction simultaneously, assistance-localization real-time.

Drawings

FIG. 1 is a schematic view of the assembly structure of the body frame of the present invention;

FIG. 2 is an exploded view of the body frame of FIG. 1;

FIG. 3 is a schematic view of the structure of the lower body, the left side wall and the right side wall of FIG. 2;

FIG. 4 is a schematic view of the main positioning connection point of the left side wall and the lower body of the present invention;

FIG. 5 is a schematic view of the positioning assembly shown at A in FIG. 4 assembled in the Y direction;

FIG. 6 is a schematic view of the positioning assembly of FIG. 5 assembled in a Z-direction;

FIG. 7 is an exploded view of the locating assembly of FIG. 5;

FIG. 8 is a schematic view of another angularly exploded view of the locator assembly of FIG. 7;

FIG. 9 is a schematic view of the positioning assembly of FIG. 8;

FIG. 10 is a sectional view taken along line A-A of FIG. 9;

FIG. 11 is a schematic view of an auxiliary positioning connection point between the left side wall and the lower body of the present invention;

FIG. 12 is a schematic view of the positioning assembly of the connection member at B in FIG. 11 assembled in the Y direction;

FIG. 13 is a schematic view of the positioning and assembling structure of the connector in FIG. 12 in the Z-direction;

FIG. 14 is an exploded view of the locating assembly connector of FIG. 11;

FIG. 15 is a schematic view of another angularly exploded view of the alignment coupler of FIG. 14;

FIG. 16 is a schematic view of the positioning assembly connector assembly of FIG. 15;

FIG. 17 is a sectional view taken along line B-B of FIG. 16;

FIG. 18 is a sectional view taken along line C-C of FIG. 16;

FIG. 19 is a schematic view of an auxiliary positioning connection point between the lower body and the left side wall of the present invention;

FIG. 20 is a schematic view of the positioning connection member shown at C in FIG. 19 assembled in the Y direction;

FIG. 21 is a schematic view of the positioning connection member of FIG. 20 assembled in a Z-direction;

FIG. 22 is an exploded view of the positioning connection member of FIG. 19;

FIG. 23 is a schematic view of another angularly exploded view of the positioning connection of FIG. 22;

FIG. 24 is a schematic view of the positioning connection member assembly of FIG. 23;

fig. 25 is a sectional view taken along line D-D in fig. 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 25, the present invention relates to a vehicle body frame, which comprises a lower vehicle body 1, a left side wall 2, a right side wall 3, a rear wall 4, and a top beam 5, specifically, the left and right side walls are assembled on two sides of the lower vehicle body 1, the rear wall 4 is assembled on the rear end of the upper vehicle body 1, and the top beam 5 is assembled with the upper ends of the left and right side walls.

Referring to fig. 2, the lower body 1 includes two lower body a pillars 11 symmetrically disposed, and a front floor and a rear floor connected to bottoms of the two lower body a pillars 11. Specifically, the front floor has two front floor stringers 12 on both sides, and the rear floor has two rear floor stringers 13 on both sides. The left side wall and the right side wall both comprise a side wall A column 21, a front threshold beam 22 connected to the bottom of the side wall A column 21 and a side wall lower side beam 23 arranged behind the front threshold beam 22.

Referring to fig. 3, the left side wall or the right side wall is connected with the lower car body 1 through a main positioning connection point 100, an auxiliary positioning connection point 200 and an auxiliary positioning connection point 300. The main positioning connection point 100, the auxiliary positioning connection point 200 and the auxiliary positioning connection point 300 form an assembly positioning system.

Referring to fig. 4 to 8, the main positioning connection point 100 is formed by butting the upper part (100A) of the lower body a pillar 11 with the upper part (100B) of the side wall a pillar 21 and connecting the two through the positioning assembly 10. The locating assembly 10 includes a first upper body 101 secured to an upper portion of the side wall a-pillar 21 and a first lower body 102 secured to an upper portion of the lower body a-pillar 11.

Referring to fig. 4 to 6, each of the left side wall and the right side wall further includes a mounting longitudinal beam 24 connected to the upper end of the side wall a pillar 21, and the first upper body 101 is fixed on the front outer end face of the mounting longitudinal beam 103 in the Y direction or the Z direction; the lower vehicle body 1 further comprises a mounting cross beam 15 for connecting two lower vehicle body A columns 11, wherein a first lower body 102 is fixed on the outer end face of the upper part of the lower vehicle body A column 11 or the outer end face of the side part of the mounting cross beam 15, and specifically, a first upper body 101 fixed on the outer end face of the front part of the mounting longitudinal beam 103 in the Y direction and a first lower body 102 fixed on the outer end face of the upper part of the lower vehicle body A column 11 are positioned and assembled in the Y direction; the first upper body 101 fixed to the front outer end face of the mounting side member 103 in the Z direction is subjected to positioning fitting in the Z direction with the first lower body 102 fixed to the side outer end face of the mounting cross member 15.

Referring to fig. 7 and 8, the first upper body 101 includes a first upper body base 1011 having an axis perpendicular to an axis of the first upper body base 1011, and a first upper connecting member 1012 fixed to an outer side surface of the first upper body base 1011. The first upper connecting member 1012 has a first upper body screw hole 10121 penetrating upper and lower surfaces thereof, wherein a center line of the first upper body screw hole 10121 is parallel to an outer side surface of the first upper body base 1011. The inner side surface of the first upper body base 1011 is fixed to the outer front end surface of the mounting stringer 103 in the Y-direction or Z-direction.

Specifically, referring to fig. 9 and 10, the first upper connector 1012 includes a generally cylindrical structure including a first upper section 10121, a first middle section 10122, and a first lower section 10123. The width of the first upper section 10121 is larger than that of the first middle section 10122, the first middle section 10122 is of a plum blossom-shaped column structure, the module assembling angle correcting effect is achieved, the phenomenon of deflection during guiding assembling is corrected, meanwhile, assembling friction force can be reduced, and auxiliary positioning is achieved. The outer diameter of the first lower section 10123 gradually decreases from inside to outside, and the maximum outer diameter of the first lower section 10123 does not exceed the outer diameter of the first middle section 10122.

The first lower section is not limited to a cylinder, but may also be a cone, a polygonal cone, a cylinder, a polygonal cylinder, a hemisphere or an ellipsoid, and the first middle section may also be a polygonal cylinder.

Referring to fig. 7 and 8, the first lower body 102 includes a first lower body base 1021 and a first lower link 1022 fixed to an inner side surface of the first lower body base 1020 and coaxial with the first lower body base 1021. The first lower connecting member 1022 is installed in a cavity of the upper portion of the lower body a pillar 11 or a cavity of the side portion of the mounting cross member 15, and the inner side surface of the first lower body mount 1021 is fixedly connected to the outer end surface of the upper portion of the lower body a pillar 11 or the outer end surface of the side portion of the mounting cross member 15.

Referring to fig. 7 to 10, the first lower connecting member 1022 has a first receiving groove 1023 penetrating through the first lower body base, the first upper connecting member 1012 is installed in the first receiving groove 1023 and rotates around the axis of the first lower body base 1021, and the first receiving groove 1023 includes a first upper groove 10231 and a first lower groove 10232.

Specifically, the barrel-shaped structure of first upper segment cell body 10231 plays the assembly angle correction effect, takes place crooked phenomenon when preventing to revise the direction assembly, makes the interlock process can cooperate perpendicularly. The inner diameter of the first lower slot 10232 decreases from the inner end of the first upper slot 10231.

Referring to fig. 9 and 10, a first lower body screw hole 10233 is formed at the bottom of the first receiving groove 1023, and the first lower body screw hole 10233 has an internal thread. The inner diameter of the first upper slot 10231 is larger than the maximum inner diameter of the first lower slot 10232, and a first step 10234 is formed at the joint of the first lower body screw 10233 and the first lower slot 10232.

The first middle section 10122 is installed in the first upper section groove 10231, the first lower section 10123 is installed in the first lower section groove 10232, and the outer end face of the first lower section 10123 abuts against the first step 10234. The first upper section 10121 abuts against the outer surface of the first lower body base 1021.

The bolt passes first last body screw 10121 of first last body 101 to go deep into first body screw 10233, the inside internal thread of first body screw 10233 is connected with the bolt interlock, and the nut is saved to the assembling process, realizes that one-way operation bolt installs, promotes assembly efficiency.

The first upper segment is equipped with first strengthening rib with first body base junction, and first connecting piece outside surface evenly sets up a plurality of second strengthening ribs down.

The inner side surface of the first upper body base is hollowed, so that the shape matching error caused by large-area contact with the upper part of the side wall A column 21 is reduced.

The inner side surface of the first upper body base 1011 is fixed on the outer end surface of the front part of the mounting longitudinal beam 103 in the Y direction, the first lower connecting piece 1022 is arranged in the upper cavity of the lower vehicle body A column 11, the first upper connecting piece 1012 is arranged in the first accommodating groove 1023 in the vertical direction, and the bolt sequentially passes through the first upper body screw hole 10121 and the first lower body screw hole 10233 from top to bottom, so that the positioning and assembly of the first upper body 101 and the first lower body 102 in the Y direction are realized.

The inner side surface of the first upper body base 1011 is fixed on the outer end surface of the front part of the mounting longitudinal beam 103 in the Z direction, the first lower connecting piece 1022 is installed in the cavity of the side part of the mounting cross beam 15, the first upper connecting piece 1012 is installed in the first accommodating groove 1023 in the horizontal direction, and the bolt sequentially passes through the first upper body screw hole 10121 and the first lower body screw hole 10233 from outside to inside, so that the positioning and assembling of the first upper body 101 and the first lower body 102 in the Z direction are realized. The connection method of the first upper body 101 and the first lower body 102 is not limited to bolt connection, and other connection methods such as glue joint or riveting can be adopted.

Referring to fig. 11 to 15, the secondary positioning connection point 200 is formed by butting the lower part (200B) of the side wall a pillar 21 with the lower part (200A) of the lower vehicle body a pillar 11 and connecting the two parts through the positioning assembly connecting piece 20.

Referring to fig. 11 to 13, the positioning and assembling connector 20 includes a second upper body 201 fixed to the lower portion of the side wall a pillar and a second lower body 202 fixed to the front top surface of the front floor rail 12 in the Y direction or the Z direction.

Referring to fig. 14 and 15, the second upper body 201 has a second receiving groove 2011 formed by being recessed inward from the bottom, and the two sides of the second receiving groove 2011 are a first guide block 2012 and a second guide block 2013 respectively. The second lower body 202 includes a first base 2022 and a matching block 2021 extending outward from the surface of the first base 2022, a second base 2023 located on the surface of the first base 2022 is disposed at an interval on one side of the matching block 2021, a guiding groove 2024 is defined between the matching block 2021 and the second base 2023, the second guiding block 2013 is installed in the guiding groove 2013, and the matching block 2021 is installed in the second receiving groove 2011 and is fixedly connected with the second upper body 201. The bottom of the first base 2022 is hollowed.

Referring to fig. 18, the mating block 2021 is a trapezoid structure, two sides of the mating block 2021 are respectively provided with a first inclined surface 20212, the second receiving groove 2011 is matched with the mating block 2021, and the first inclined surface 20212 is attached to the side surface of the second receiving groove 2011.

Referring to fig. 17, a portion of each end of the fitting block 2021 is cut off to form a second inclined surface 20213, the bottom of the second receiving groove 2011 is recessed inward to form an inner groove 20111, the two ends of the inner groove 20111 are provided with the guiding inclined surfaces 20112, the second inclined surface 20213 is attached to the guiding inclined surfaces 20112, and the fitting block 2021 and the second receiving groove 2011 are provided with the first inclined surface 20212 and the second inclined surface 20213 to play a role in eliminating errors when being assembled.

The inner side surface of the second base 2023 is inclined and extends obliquely outwards from the bottom of the guide groove 2013, and the inner side surface of the second base 2023 is in clearance fit with the outer side surface of the second guide block 2013.

The matching block 2021 is not limited to the trapezoid structure, and may have other body structures such as a cylinder, a hemisphere, a cone, a rectangle, and the like.

Referring to fig. 19 to 21, the second upper body 201 has a second upper body screw hole 2014 penetrating through the upper and lower surfaces thereof, the mating block 2021 has a second lower body screw hole 20211 penetrating through the upper and lower surfaces thereof, the second upper body screw hole 2014 is communicated with the second receiving groove 2011, the second lower body screw hole 20211 has an internal thread therein, and the bolt passes through the second upper body screw hole 2014 and is engaged with the internal thread of the second lower body screw hole 20211.

The medial surface 2015 of body 201 is fixed with the Y direction in the anterior outer terminal surface of preceding threshold roof beam 22 on the second, and the bottom of first base 2022 is fixed in the anterior top surface of preceding floor longeron 12, second accepting groove 2011 is with the cladding of vertical direction cooperation piece 2021, the bolt top-down passes body screw, body screw under the second in proper order on the second.

The medial surface 2015 of body is fixed with the Z direction in the anterior outer terminal surface of preceding threshold roof beam on the second, and the bottom of second base 2023 is fixed in the anterior top surface of preceding floor longeron, second accepting groove 2011 with the horizontal direction cladding cooperation piece 2021, the bolt passes in proper order from outside to inside body screw, body screw under the second on the second. The connection mode of the second upper body and the second lower body is not limited to bolt connection, and other connection modes such as gluing or riveting can also be adopted.

Referring to fig. 19 to 23, the auxiliary positioning connecting point 300 is formed by butting the rear portion (300B) of the front sill 22 of the side body 2 with the rear portion (300A) of the front floor rail 12 of the lower body 1 and fixedly connecting the two by the positioning connecting piece 30.

The positioning link 30 includes a third upper body 301 fixed to the outer end surface of the rear portion of the front rocker 22 in the Y direction or the Z direction and a third lower body 302 fixed to the top surface of the rear portion of the front floor rail 12 in the Y direction or the Z direction.

Specifically, the third upper body 301 fixed to the outer end face of the rear portion of the front rocker 22 in the Y direction and the third lower body 302 fixed to the top face of the rear portion of the front floor side member 12 in the Y direction are positioned and assembled in the Y direction; the third upper body 301 fixed to the outer end face of the rear portion of the front rocker 22 in the Z direction and the third lower body 302 fixed to the top face of the rear portion of the front floor side member 12 in the Z direction are subjected to positioning and fitting in the Z direction.

Referring to fig. 19 to 21, the third upper body 301 includes a third upper body base 3011 and a third upper link 3012 fixed to an outer side surface of the third upper body base 3011. In this embodiment, the third upper connecting piece 3012 is a trapezoid structure, and includes two parallel surfaces and two inclined planes connecting the two parallel surfaces, the third upper body screw hole penetrates through the two parallel surfaces, two side surfaces of the third accommodating groove are disposed in an inclined manner, two side surfaces extend outward from the bottom of the third accommodating groove, and the two inclined planes of the third upper connecting piece are attached to the two side surfaces of the third accommodating groove.

The third upper connecting piece 3012 is not limited to a trapezoid structure, and may have other body structures such as a cylinder, a hemisphere, a cone, a rectangle, etc. The third upper connecting piece 3012 plays a role in assembly guiding, and the longitudinal size of the frame is corrected in the assembly process. The third upper link 3012 has a third upper body screw hole 30121 passing through its upper and lower surfaces, the axis of the third upper body screw hole being perpendicular to the axis of the third upper body base. The inner side surface of the third upper body base 3011 is fixed to the outer end surface of the rear portion of the front rocker 22 in the Y direction or the Z direction.

Referring to fig. 22 and 23, the third lower body 302 has a third receiving cavity 3021 recessed from the outside to the inside, the third upper connecting member 3012 is received in the third receiving cavity 3021, a third lower body screw hole 3022 is formed at the bottom of the third receiving cavity 3021 and penetrates through the upper and lower surfaces of the third lower body screw hole 3022, and an internal thread is formed inside the third lower body screw hole 3022. The bolt passes third upper body screw hole 30121 in proper order to with the internal thread interlock connection in the third lower body screw hole 3022, realize that one-way operation bolt installs, promote assembly efficiency. In addition, a third upper connecting piece is arranged in the third containing groove and is fixed with the third lower body in a gluing or riveting mode.

Referring to fig. 24 and 25, the third lower body 302 has a third bottom surface 3023 and two third side surfaces 3024, and the fixation of the third lower body 302 to the top surface of the rear portion of the front floor stringer 12 in the Y direction means that the third bottom surface 3023 is fixed to the top surface of the rear portion of the front floor stringer 12, so that the third upper body 301 and the third lower body 302 are positioned and assembled in the Y direction; the third lower body 302 is fixed to the top surface of the rear part of the front floor longitudinal beam 12 in the Z direction means that the third bottom surface 3023 rotates 90 degrees, wherein a third side surface 3024 is fixed to the top surface of the rear part of the front floor longitudinal beam 12, so that the third upper body 301 and the third lower body 302 are positioned and assembled in the Z direction. The third upper body base 3011 is adjacent to a third side 3024.

The lower vehicle body 1 is assembled with the left side and the right side in a splicing manner through the positioning assembly part 10, the positioning assembly connecting part 20 and the positioning connecting part 30 which are different in structure, the structural strength is guaranteed, part of welding is omitted, the environment is polluted, in the assembling process, an assembling worker does not need to hold tools and parts to drill out, and the working efficiency is improved.

The utility model discloses not injecing the position of assembly of positioning assembly spare 10, positioning assembly connecting piece 20, positioning connection piece 30, when left side wall or right side wall and lower vehicle body equipment, can adopt the arbitrary one of above-mentioned three kinds or arbitrary two kinds of combinations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A locating fitting, characterized by: the first upper body comprises a first upper body base and a first upper connecting piece fixed on the outer side surface of the first upper body base, the first lower body comprises a first lower body base and a first lower connecting piece fixed on the inner side surface of the first lower body base and coaxial with the first lower body base, the axis of the first upper body base is perpendicular to the axis of the first upper connecting piece, the first lower connecting piece is provided with a first accommodating groove penetrating through the first lower body base, and the first upper connecting piece is arranged in the first accommodating groove and rotates around the axis of the first lower body base.

2. The locator assembly of claim 1 wherein: the first upper connecting piece comprises a first upper section, a first middle section and a first lower section, the first upper section is integrally connected with the first upper body base, the first lower section is a cone, a polygonal cone, a cylinder, a polygonal cylinder, a hemisphere or an ellipsoid, the first middle section is a quincuncial cylinder or a polygonal cylinder, and the first lower section is correspondingly matched and installed in the first accommodating groove.

3. The locator assembly of claim 2 wherein: the first upper connecting piece is provided with a first upper body screw hole which sequentially penetrates through the first upper section, the first middle section and the first lower section, a first lower body screw hole is formed in the bottom of the first accommodating groove, internal threads are formed in the first lower body screw hole, and a bolt penetrates through the first upper body screw hole and is connected with the internal threads of the first lower body screw hole in an occlusion mode.

4. The locator assembly of claim 2 wherein: the first middle section and the first lower section are correspondingly matched and arranged in the first containing groove and fixed in a gluing or riveting mode.

5. The locator assembly of claim 3 or 4 wherein: the first upper section and the joint of the first upper body base are provided with first reinforcing ribs, and the inner side surface of the first upper body base is hollowed.

6. The locator assembly of claim 5 wherein: and a plurality of second reinforcing ribs are uniformly arranged on the outer side surface of the first lower connecting piece.

7. A vehicle body frame is characterized in that: the automobile body comprises a lower automobile body, a left side wall and a right side wall, wherein the left side wall and the right side wall are assembled on two sides of the lower automobile body, and the lower automobile body is fixedly connected with the left side wall or the right side wall through a positioning assembly part according to any one of claims 1 to 6.

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