CN211107683U - Rear longitudinal beam assembly for fixing torsion beam - Google Patents
Rear longitudinal beam assembly for fixing torsion beam Download PDFInfo
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- CN211107683U CN211107683U CN201921416349.8U CN201921416349U CN211107683U CN 211107683 U CN211107683 U CN 211107683U CN 201921416349 U CN201921416349 U CN 201921416349U CN 211107683 U CN211107683 U CN 211107683U
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Abstract
The utility model relates to the technical field of automobile assembly, in particular to a rear longitudinal beam assembly for fixing a torsion beam, which comprises a longitudinal beam, a support piece, a top cover plate, a side sealing plate, a plurality of adjusting brackets and a projection welding nut, wherein the longitudinal beam is arranged at one section of the bottom of an automobile body close to the tail of the automobile, the longitudinal beam is a molded panel and comprises an integrally formed mounting plane plate and a vertical curved plate, the side sealing plate is vertically and fixedly connected with the mounting plane plate and the top cover plate to form a cavity for accommodating the support piece, the top cover plate is provided with a plurality of through holes, a plurality of limiting holes are arranged around each through hole, the adjusting bracket is provided with an accommodating hole, all corners of the support piece are provided with channels, the longitudinal beam is provided with a plurality of mounting holes, the utility model improves the rigidity and the mode of the mounting part, and the utility model discloses an adjusting, the accumulated tolerance of peripheral parts can be effectively absorbed, the reworking times are reduced, and the assembly efficiency is ensured.
Description
Technical Field
The utility model relates to an automobile assembling technical field specifically is a back longeron assembly for fixing torsion beam.
Background
The traditional vehicle body structure generally comprises two types, the installation grooves for installing the torsion beam on the left side and the right side of the existing vehicle body are of a U-shaped structure, the size of a U-shaped opening is slightly larger than that of a rubber bushing, the actual values and the theoretical values of the installation surface and the installation hole on the vehicle body are deviated due to accumulative errors of relative welding precision of the two sides, and when the rubber bushing of the torsion beam is installed in the installation grooves on the two sides, the problem of difficult assembly of the torsion beam can occur.
The existing structural form that welding nuts are arranged on the installation surface of the torsion beam of the automobile body has the characteristics of simple structure, easiness in control of welding precision and the like, but because a cavity structure is not formed to decompose stress, the rigidity and the mode of the installation point are not beneficial to lifting.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a back longeron assembly for fixing torsion beam to solve the problem that proposes among the above-mentioned background art.
The technical scheme of the utility model is that: a rear longitudinal beam assembly for fixing a torsion beam comprises a longitudinal beam, a support piece, a top cover plate, side sealing plates, a plurality of adjusting supports and projection welding nuts, wherein the longitudinal beam is arranged at one section of the bottom of a vehicle body close to the tail of the vehicle, the longitudinal beam is a molded panel and comprises an installation plane plate and a vertical curved plate which are integrally formed, the top cover plate is fixedly connected with the top of the vertical curved plate, the side sealing plates are vertically arranged, two ends of each side sealing plate are respectively fixedly connected with the installation plane plate and the top cover plate to form a cavity for accommodating the support piece, the top cover plate is provided with a plurality of through holes, a plurality of limiting holes are arranged around each through hole, the adjusting supports are provided with accommodating holes for accommodating the projection welding nuts, the support piece is of a square-tube-shaped structure, and all corners of the support piece are provided with channels which can share the, the longeron is provided with a plurality of mounting hole that can counterpoint with the passageway.
Furthermore, all corners of the support member are provided with X-shaped ribs along the diagonal lines of the support member, and positioning grooves are formed in the crossed central positions of the ribs and the outer side of the support member.
Further, the top apron extends along vehicle length direction, and the top apron is the U type at the sectional shape at support piece top, and the bottom of top apron and support piece's upper surface laminating, the both sides of top apron are provided with flange face one and flange face two, flange face two and vertical curved plate electric welding, and flange face three and flange face one fixed connection are passed through to the bottom of side seal board, flange face four and top apron flange face one fixed connection are passed through to the top of side seal board.
Furthermore, the longitudinal beam extends along the length direction of the vehicle, and the mounting plane plate is further provided with a plurality of positioning holes.
Furthermore, the adjusting support comprises a fifth flange face, the accommodating hole is circular and is formed in the fifth flange face, a plurality of limiting arms perpendicular to the fifth flange face are arranged at the edge of the fifth flange face, and all the limiting arms can be inserted into all the limiting holes one by one.
Furthermore, the adjusting support is of a cap-shaped structure, a plurality of flange surfaces six are arranged on the edge of the adjusting support, flanges are arranged between all the flange surfaces on the edge of the adjusting support, and the height of each flange is greater than 1/2 of the thickness of the movable nut.
Furthermore, the limiting hole is a rectangular hole, and the width and the thickness of the limiting arm are both smaller than the length and the width of the limiting hole.
Furthermore, the mounting hole and the through hole are round holes, and the diameter of the mounting hole is larger than that of the through hole.
Furthermore, the support piece is made of a light weight material.
The utility model discloses an improve and provide a back longeron assembly for fixing torsion beam here, compare with prior art, have following improvement and advantage:
one is as follows: because the local cavity is formed at the installation part of the torsion beam and the supporting piece is arranged in the cavity, the rigidity and the mode of the installation part are improved, the service life of the vehicle is prolonged, and the driving feeling is improved;
the second step is as follows: the accumulated tolerance of peripheral parts can be effectively absorbed by adjusting the movement amount of the support, the reworking times are reduced, the assembly efficiency is ensured, and meanwhile, the manufacturing cost of the peripheral parts can be reduced due to the reduction of the precision requirement of the parts.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic view of an existing installation of a torsion beam and a vehicle body;
FIG. 2 is a schematic perspective view of the present invention assembled to a vehicle body;
fig. 3 is a schematic view of a prior art perspective structure of a torsion beam;
fig. 4 is a schematic perspective view of the present invention;
fig. 5 is an exploded view of the three-dimensional structure of the present invention;
fig. 6 is a schematic perspective view of the supporting member of the present invention;
fig. 7 is a top view of the support member of the present invention;
FIG. 8 is a top view of an adjustment bracket and projection nut according to an embodiment of the present invention;
fig. 9 is a schematic perspective view of an adjusting bracket and a projection nut according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 11 is a top view of an adjusting bracket and projection nut according to a second embodiment of the present invention;
description of reference numerals:
the automobile body comprises longitudinal beams 1, a mounting plane plate 11, a vertical curved plate 12, mounting holes 13, positioning holes 14, supporting pieces 2, channels 21, ribs 22, positioning grooves 23, a top cover plate 3, through holes 31, limiting holes 32, a first flange face 33, a second flange face 34, an adjusting support 5, a containing hole 51, a fifth flange face 52, limiting arms 53, a sixth flange face 54, a flange 55, a projection welding nut 6, a cavity 7, a side sealing plate 8, a third flange face 81, a fourth flange face 82, a torsion beam 9, a torsion beam support 91, bolts 92 and an automobile body 10.
Detailed Description
The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. 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.
The utility model discloses an improve and provide a back longeron assembly for fixing torsion beam here: (in the figure, the direction X represents the vehicle length direction, the direction Y represents the vehicle width direction, and the direction Z represents the vehicle height direction)
The first embodiment is as follows:
as shown in fig. 1-11, the vehicle body assembly comprises a longitudinal beam 1, a support 2, a top cover plate 3, a side sealing plate 8, a plurality of adjusting brackets 5 and projection welding nuts 6, wherein the longitudinal beam 1 is arranged at a section of the bottom of a vehicle body 10 near the tail of the vehicle, the longitudinal beam 1 is a molded panel and comprises an installation plane plate 11 and a vertical curved plate 12 which are integrally formed, the top cover plate 3 is fixedly connected with the top of the vertical curved plate 12, the side sealing plate 8 is vertically arranged, two ends of the side sealing plate are respectively fixedly connected with the installation plane plate 11 and the top cover plate 3 and form a cavity 7 for accommodating the support 2, the top cover plate 3 is provided with a plurality of through holes 31, a plurality of limiting holes 32 are arranged around each through hole 31, the adjusting bracket 5 is provided with an accommodating hole 51 for accommodating the projection welding nuts 6, the support 2 is in a square-cylindrical structure, all corners of the support 2 are provided with channels 21 which can be coaxial, the longitudinal beam 1 is provided with a plurality of mounting holes 13 capable of being aligned with the channel 21, the edges of the longitudinal beam 1, the top cover plate 3 and the side sealing plates 8 are connected with each other in an electric welding mode, the supporting piece 2 is placed in the cavity 7, the rear longitudinal beam assembly forms a closed cavity 7 in the position of the supporting piece 2, the torsion beam 9 is fixedly connected with the rear longitudinal beam assembly through a plurality of bolts 92, the bolts 92 sequentially penetrate through the mounting holes 13 of the longitudinal beam 1, the channel 21 of the supporting piece 2 and the through hole 31 of the top cover plate 3 from bottom to top and are in threaded connection with the projection welding nuts 6, the projection welding nuts 6 are welded with the adjusting bracket 5 together before the projection welding nuts 6 are in threaded connection with the bolts 92, the adjusting bracket 5 is placed in the limiting holes 32, and then the bolts 92 are screwed.
All corners of the supporting piece 2 are provided with X-shaped ribs 22 along the diagonal lines of the supporting piece 2, positioning grooves 23 are formed in the crossed central positions of the ribs 22 and the outer sides of the supporting piece 2, screws penetrate through the longitudinal beams 1 and are inserted into the positioning grooves 23, the supporting piece 2 is positioned at the installation position of the torsion beam 9, the supporting piece 2 is installed at a specified position in advance, the torsion beam 9 can be pre-positioned when being assembled through the positioning grooves 23, a local cavity 7 is formed at the installation position of the torsion beam 9, and the supporting piece 2 in the cavity 7 improves the rigidity and the mode of the installation position, prolongs the service life of a vehicle and improves the driving feeling.
The longitudinal beam 1 extends along the length direction of the vehicle, the mounting plane plate 11 is further provided with a plurality of positioning holes 14, and the support member 2 is positioned at the position where the torsion beam 9 is mounted by passing screws through the positioning holes 14 of the longitudinal beam 1 and inserting the screws into the positioning grooves 23.
Adjusting bracket 5 is including five 52 of flange face, accommodation hole 51 is circular and sets up on five 52 of flange face, be equipped with a plurality of and five 52 vertically spacing arms 53 of flange face at five 52's of flange face edge, all spacing arms 53 can insert all spacing holes 32 one by one, all adjusting bracket 5 sets up respectively in the top and the laminating of four mounting holes 13, spacing arm 53 falls into and corresponds spacing hole 32, spacing arm 53 can lengthen the setting at the ascending height in its plane direction, in order to prevent that spacing arm 53 from deviating from rectangular hole under the limit condition, lead to losing the limit function of adjustment tank to adjusting bracket 5.
Mounting hole 13 and through-hole 31 are the round hole, the diameter of mounting hole 13 is greater than the diameter of through-hole 31, make things convenient for bolt 92 to penetrate, passageway 21 also is circular structure, and the diameter of passageway 21 is the same with the diameter of through-hole 31.
The support 2 is made of light weight materials, the average wall thickness of the support 23 is preferably 2-4 mm, the height value of the support 2 is about 1/3 which is generally located at 2 distances of a diagonal position, and the support 2 is preferably made of light weight materials such as aluminum alloy, long fiber reinforced thermoplastic composite material L FT and carbon fiber reinforced plastic CFRP.
The working principle is as follows: in the process of assembling the torsion beam 9, the torsion beam bracket 91 is attached to the lower surface of the mounting plane plate 11 of the longitudinal beam 1, the four mounting bolts 92 sequentially pass through the mounting holes 13 on the torsion beam bracket 91, the mounting holes 13 of the longitudinal beam 1, the channel 21 of the support member 2 and the through hole 31 of the top cover plate 3, and are finally connected with the projection welding nuts 6,
because the projection welding nut 6 and the adjusting bracket 5 are projection-welded and connected into a whole, and the limiting arm 53 of the adjusting bracket 5 has a limited moving range, when the parts of the torsion beam bracket 91, the longitudinal beam 1, the supporting piece 2 and the top cover plate 3 have welding or assembling deviation, the tolerances can be absorbed by the movement of the adjusting bracket 5, and finally the torsion beam bracket 91 is smoothly assembled to the rear longitudinal beam assembly.
When the mounting bolt 92 is fully tightened with the projection nut 6, the enclosed cavity 7 is compressed, and the support member 2 is tightly compressed, thereby greatly improving the rigidity of the enclosed cavity 7.
When the torsion beam 9 is impacted by the road surface during the running of the automobile, a certain bending moment is applied to the mounting bolt 92, the rigidity of the closed cavity 7 is improved due to the combined action of the support piece 2 and the closed cavity 7, the moment arm of the flange surface from the projection welding nut 6 to the torsion beam 9 is also increased, the stress of the projection welding nut 6 is decomposed to relevant parts on the rear longitudinal beam assembly, and the reliability of the structure at the position is improved.
Example two:
as shown in fig. 1-11, the vehicle body assembly comprises a longitudinal beam 1, a support 2, a top cover plate 3, a side sealing plate 8, a plurality of adjusting brackets 5 and projection welding nuts 6, wherein the longitudinal beam 1 is arranged at a section of the bottom of a vehicle body 10 near the tail of the vehicle, the longitudinal beam 1 is a molded panel and comprises an installation plane plate 11 and a vertical curved plate 12 which are integrally formed, the top cover plate 3 is fixedly connected with the top of the vertical curved plate 12, the side sealing plate 8 is vertically arranged, two ends of the side sealing plate are respectively fixedly connected with the installation plane plate 11 and the top cover plate 3 and form a cavity 7 for accommodating the support 2, the top cover plate 3 is provided with a plurality of through holes 31, a plurality of limiting holes 32 are arranged around each through hole 31, the adjusting bracket 5 is provided with an accommodating hole 51 for accommodating the projection welding nuts 6, the support 2 is in a square-cylindrical structure, all corners of the support 2 are provided with channels 21 which can be coaxial, longeron 1 is provided with the mounting hole 13 that a plurality of can counterpoint with passageway 21, and the equal electric welding in position of connecting each other of the edge of longeron 1, top apron 3 and side seal board 8 is connected, and support piece 2 is put in cavity 7 for back longeron assembly forms closed cavity 7 in support piece 2's position, and torsion beam 9 passes through a plurality of bolt 92 and back longeron assembly fixed connection, bolt 92 is from bottom to top, passes mounting hole 13 of longeron 1, support piece 2's passageway 21 and top apron 3's through-hole 31 in proper order and with projection nut 6 threaded connection, adjusts the welding of support 5 and covers projection nut 6 on top apron 3.
All corners of the supporting piece 2 are provided with X-shaped ribs 22 along the diagonal lines of the supporting piece 2, positioning grooves 23 are formed in the crossed central positions of the ribs 22 and the outer sides of the supporting piece 2, screws penetrate through the longitudinal beams 1 and are inserted into the positioning grooves 23, the supporting piece 2 is positioned at the installation position of the torsion beam 9, the supporting piece 2 is installed at a specified position in advance, the torsion beam 9 can be pre-positioned when being assembled through the positioning grooves 23, a local cavity 7 is formed at the installation position of the torsion beam 9, and the supporting piece 2 in the cavity 7 improves the rigidity and the mode of the installation position, prolongs the service life of a vehicle and improves the driving feeling.
The longitudinal beam 1 extends along the length direction of the vehicle, the mounting plane plate 11 is further provided with a plurality of positioning holes 14, and the support member 2 is positioned at the position where the torsion beam 9 is mounted by passing screws through the positioning holes 14 of the longitudinal beam 1 and inserting the screws into the positioning grooves 23.
The adjusting support 5 is of a cap-shaped structure, the edge of the adjusting support 5 is provided with six 54 flange faces, the edge of the adjusting support 5 is located between all the flange faces and is provided with a flange 55, the height of the flange 55 is larger than 1/2 of the thickness of a movable nut, a bolt 92 sequentially penetrates through the mounting hole 13 of the longitudinal beam 1, the channel 21 of the support piece 2 and the through hole 31 of the top cover plate 3 and is in threaded connection with the projection welding nut 6, the adjusting support 5 is welded on the top cover plate 3 to cover the projection welding nut 6, the projection welding nut 6 can shake in the adjusting support 5, accumulated tolerance of peripheral parts can be effectively absorbed, rework times are reduced, assembly efficiency is guaranteed, and meanwhile, due to the fact that the precision requirement on the parts is reduced, the manufacturing cost of the peripheral parts can be reduced.
Mounting hole 13 and through-hole 31 are the round hole, the diameter of mounting hole 13 is greater than the diameter of through-hole 31, make things convenient for bolt 92 to penetrate, passageway 21 also is circular structure, and the diameter of passageway 21 is the same with the diameter of through-hole 31.
The support 2 is made of light weight materials, the average wall thickness of the support 23 is preferably 2-4 mm, the height value of the support 2 is about 1/3 which is generally located at 2 distances of a diagonal position, and the support 2 is preferably made of light weight materials such as aluminum alloy, long fiber reinforced thermoplastic composite material L FT and carbon fiber reinforced plastic CFRP.
The working principle is as follows: in the process of assembling the torsion beam 9, the torsion beam bracket 91 is attached to the lower surface of the mounting plane plate 11 of the longitudinal beam 1, the four mounting bolts 92 sequentially pass through the mounting holes 13 on the torsion beam bracket 91, the mounting holes 13 of the longitudinal beam 1, the channel 21 of the support member 2 and the through hole 31 of the top cover plate 3, and are finally connected with the projection welding nuts 6,
When the mounting bolt 92 is fully tightened with the projection nut 6, the enclosed cavity 7 is compressed, and the support member 2 is tightly compressed, thereby greatly improving the rigidity of the enclosed cavity 7.
When the torsion beam 9 is impacted by the road surface during the running of the automobile, a certain bending moment is applied to the mounting bolt 92, the rigidity of the closed cavity 7 is improved due to the combined action of the support piece 2 and the closed cavity 7, the moment arm of the flange surface from the projection welding nut 6 to the torsion beam 9 is also increased, the stress of the projection welding nut 6 is decomposed to relevant parts on the rear longitudinal beam assembly, and the reliability of the structure at the position is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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 (9)
1. The utility model provides a back longeron assembly for fixing torsion beam which characterized in that: comprises a longitudinal beam (1), a supporting piece (2), a top cover plate (3), a side sealing plate (8), a plurality of adjusting brackets (5) and a projection welding nut (6)The longitudinal beam (1) is arranged at one section of the bottom of the vehicle body (10) close to the tail of the vehicle, and the longitudinal beam (1) is
The profile panel comprises an installation plane plate (11) and a vertical curved plate (12) which are integrally formed, a top cover plate (3) is fixedly connected with the top of the vertical curved plate (12), the side sealing plates (8) are vertically arranged, two ends of each side sealing plate are respectively fixedly connected with the mounting plane plate (11) and the top cover plate (3) to form a cavity (7) for accommodating the supporting piece (2), a plurality of through holes (31) are arranged on the top cover plate (3), a plurality of limiting holes (32) are arranged around each through hole (31), the adjusting bracket (5) is provided with a receiving hole (51) for receiving a projection welding nut (6), the supporting piece (2) is of a square cylindrical structure, all corners of the supporting piece (2) are provided with channels (21) which can be coaxial with all the through holes (31) respectively, the longitudinal beam (1) is provided with a plurality of mounting holes (13) which can be aligned with the channels (21).
2. The rear side member assembly for fixing the torsion beam according to claim 1, wherein: all corners of the support member (2) are provided with X-shaped ribs (22) along the diagonal lines of the support member, and positioning grooves (23) are arranged at the crossed central positions of the ribs (22) and the outer side of the support member (2).
3. The rear side member assembly for fixing the torsion beam according to claim 1, wherein: top apron (3) extend along vehicle length direction, and top apron (3) are the U type at the section shape at support piece (2) top, and the bottom of top apron (3) and the upper surface laminating of support piece (2), and the both sides of top apron (3) are provided with flange face one (33) and flange face two (34), flange face two (34) and vertical curved plate (12) electric welding connection, and flange face three (81) and flange face one (33) fixed connection are passed through to the bottom of side seal board (8), flange face four (82) and top apron (3) flange face one (33) fixed connection are passed through to the top of side seal board (8).
4. The rear side member assembly for fixing the torsion beam according to claim 1, wherein: the longitudinal beam (1) extends along the length direction of the vehicle, and the mounting plane plate (11) is further provided with a plurality of positioning holes (14).
5. The rear side member assembly for fixing the torsion beam according to claim 1, wherein: the adjusting support (5) comprises a fifth flange surface (52), the accommodating hole (51) is circular and is formed in the fifth flange surface (52), a plurality of limiting arms (53) perpendicular to the fifth flange surface (52) are arranged on the edge of the fifth flange surface (52), and all the limiting arms (53) can be inserted into all the limiting holes (32) one by one.
6. The rear side member assembly for fixing the torsion beam according to claim 1, wherein: the adjusting support (5) is of a cap-shaped structure, a plurality of flange surfaces six (54) are arranged at the edge of the adjusting support (5), flanges (55) are arranged between all the flange surfaces at the edge of the adjusting support (5), and the height of each flange (55) is larger than 1/2 of the thickness of the movable nut.
7. The rear side member assembly for fixing the torsion beam according to claim 5, wherein: the limiting hole (32) is a rectangular hole, and the width and the thickness of the limiting arm (53) are smaller than the length and the width of the limiting hole (32).
8. The rear side member assembly for fixing the torsion beam according to claim 1, wherein: the mounting hole (13) and the through hole (31) are round holes, and the diameter of the mounting hole (13) is larger than that of the through hole (31).
9. The rear side member assembly for fixing the torsion beam according to claim 1, wherein: the support piece (2) is made of light materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921416349.8U CN211107683U (en) | 2019-08-29 | 2019-08-29 | Rear longitudinal beam assembly for fixing torsion beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921416349.8U CN211107683U (en) | 2019-08-29 | 2019-08-29 | Rear longitudinal beam assembly for fixing torsion beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211107683U true CN211107683U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921416349.8U Expired - Fee Related CN211107683U (en) | 2019-08-29 | 2019-08-29 | Rear longitudinal beam assembly for fixing torsion beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211107683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588779A (en) * | 2019-08-29 | 2019-12-20 | 浙江飞碟汽车制造有限公司 | Rear longitudinal beam assembly for fixing torsion beam |
-
2019
- 2019-08-29 CN CN201921416349.8U patent/CN211107683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588779A (en) * | 2019-08-29 | 2019-12-20 | 浙江飞碟汽车制造有限公司 | Rear longitudinal beam assembly for fixing torsion beam |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 |