CN220948170U - Frame-shaped multi-connecting-rod rear auxiliary frame welding assembly - Google Patents
Frame-shaped multi-connecting-rod rear auxiliary frame welding assembly Download PDFInfo
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- CN220948170U CN220948170U CN202322650555.8U CN202322650555U CN220948170U CN 220948170 U CN220948170 U CN 220948170U CN 202322650555 U CN202322650555 U CN 202322650555U CN 220948170 U CN220948170 U CN 220948170U
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- 238000003466 welding Methods 0.000 title claims abstract description 28
- 239000000725 suspension Substances 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 19
- 230000007306 turnover Effects 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a frame-shaped multi-connecting-rod rear auxiliary frame welding assembly, wherein rear front beam rod supports are respectively arranged on a left longitudinal beam and a right longitudinal beam, one extending foot of each rear front beam rod support extends towards the lower working surface of a front cross beam and is fixedly connected with the front cross beam, and at least one U-shaped adjusting gasket mounting position is reserved on a first rear front beam rod support plane positioned in the circumferential direction of a rear front Shu Lagan mounting hole and a second rear front beam rod support plane positioned in the circumferential direction of a rear front Shu Lagan mounting hole respectively; and the product qualification rate is effectively improved.
Description
Technical Field
The utility model relates to the technical field of automobile chassis, in particular to a frame-shaped multi-connecting-rod rear auxiliary frame welding assembly.
Background
In the automotive field, the rear subframe is an important component of the chassis of the vehicle, and the suspension system is fixed to the vehicle body by the rear subframe, since the rear subframe can bring about excellent suspension connection rigidity; the vibration transmitted by the road surface can be reduced, and good comfort is brought; all parts in the suspension system are changed into assemblies, so that the universality of the suspension system is improved, the research and development cost is reduced, and the assembly cost of the suspension system is reduced, and the suspension system is widely applied to vehicles.
The middle part of the existing rear auxiliary frame is of a hollow frame-shaped structure and is formed by welding and connecting a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, for example, the Chinese patent application with the application name of a platformized rear auxiliary frame structure is disclosed in the application name of CN114056430A, the middle part of the rear auxiliary frame is of a hollow frame-shaped structure and is formed by welding and connecting a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, and at least two reinforcing pieces are arranged in the frame-shaped structure of the rear auxiliary frame; one end of each of the two reinforcing pieces is welded on the front cross beam, and the other end of each of the two reinforcing pieces is welded on the left longitudinal beam and the right longitudinal beam respectively, so that the reinforcing pieces enclose two triangular spaces on the rear auxiliary frame, the two triangular spaces are formed on the rear auxiliary frame through the reinforcing pieces, the triangular structure is stable, and the rear auxiliary frame is guaranteed to have higher strength, NVH and stability in operation.
The rear auxiliary frame in the prior art is usually designed to be narrower, the rear front beam rod support is only fixed on the left longitudinal beam and the right longitudinal beam, and the front beam rod support is provided with front beam rod mounting holes for welding, two positioning holes are required to be additionally arranged on the plane of the rear front beam rod support, so that production steps are required to be increased, welding equipment with high price is required for re-arranging the front beam rod mounting holes after re-welding, the production cost of the auxiliary frame is improved, market competition is not facilitated, and meanwhile, the front beam rod support is poor in mechanical property and service performance and service life of the rear auxiliary frame are not facilitated.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the frame-shaped multi-connecting-rod rear auxiliary frame welding assembly which can reduce production process steps and has better mechanical properties.
In order to solve the technical problems, the utility model is solved by the following technical scheme: the utility model provides a sub vehicle frame welding assembly behind many connecting rods of frame, is located including front cross beam and the rear cross beam that set up relatively the front cross beam with be provided with left longeron and right longeron between the rear cross beam be provided with the front beam pole support behind the first on the left longeron the front beam pole support behind the second is provided with on the right longeron, and one of them extends the foot of beam pole support behind the first back and the second and extends the foot respectively the lower working face of front cross beam and with front cross beam fixed connection behind the first back beam pole support plane of Shu Lagan mounting hole circumferences behind being located and the second back beam pole support plane behind Shu Lagan mounting hole circumferences behind being located respectively reserve at least one U type adjusting washer mount position.
In the above technical scheme, the second rear front beam rod support and the first rear front beam rod support are identical in structure and mirror images.
In the above technical scheme, the first back toe-in pole support includes horizontal part and turns over the first bending portion and the second bending portion that turn over to vertical direction along horizontal part both ends, follows the front side and the rear side of first bending portion extend respectively and are provided with first lug and first foot that extends, follow the front side and the rear side of second bending portion extend respectively and are provided with second lug and second foot that extends, all be provided with preceding Shu Lagan mounting hole in the back on first lug and the second lug, reserve at least one U type adjusting washer mount position on the working plane of the first lug of Shu Lagan mounting hole circumference in the back and the second lug working plane of Shu Lagan mounting hole circumference in the back respectively.
In the above technical scheme, the second extends the foot and extends and with preceding crossbeam fixed connection to the lower working face of crossbeam, the outer limit of first extension foot is laminated with the inboard round surface of longeron, is favorable to increasing back toe-in pole support and left longeron's area of contact, and stability and mechanical properties can all show the improvement.
In the above technical scheme, be located the limit eaves department of first lug is provided with the first folded section that can laminate with longeron outside round surface, is located the limit eaves department of second lug is provided with the second folded section that can laminate with longeron outside round surface, is favorable to increasing the area of contact of back toe-in pole support and left longeron, and stability and mechanical properties can all show the improvement.
In the above technical scheme, the junction indent of horizontal part and first bending portion is provided with the rebound prevention portion.
In the technical scheme, the left longitudinal beam and the right longitudinal beam are of hydraulic bulging pipe structures, a hydraulic bulging pipe is adopted to replace a traditional stamping part splice welding mode, the number of production die inspection tools is reduced, the utilization rate of part materials is obviously increased, and the production cost is low.
In the technical scheme, the left longitudinal beam and the right longitudinal beam are provided with a plurality of reserved mounting positions, each of the left longitudinal beam and the right longitudinal beam comprises a rear stabilizer bar bracket mounting position and a rear upper swing arm bracket mounting position, and the integrated mounting mode is simple and convenient, and only local parts are required to be modified without changing the whole or large parts when the performance design is improved.
Among the above-mentioned technical scheme, the front beam with all be provided with a plurality of reserved bits on the rear beam, reserve bit, locating hole and front suspension reserved bit including the back suspension, through the setting of reserved bit, realize that a back sub vehicle frame both can be used to four-wheel drive commercial car, also can be used to two drive motorcycle types, effectual direct reduction research and development cost.
In the above technical scheme, the rear suspension reserved bit and the front suspension reserved bit are configured with a plugging structure.
Compared with the prior art, the utility model has the following beneficial effects: the rear front beam rod support is arranged on the left longitudinal beam and the right longitudinal beam in a mirror image mode respectively, and one extending foot extends towards the lower working surface of the front cross beam and is fixedly connected with the front cross beam, so that the physical properties of the rear front beam rod support, including torsion and bending force, are improved, and the ultimate strength is far higher than that of the traditional rear front beam rod support; meanwhile, the process of mounting the rear front Shu Lagan mounting holes is completed before the rear front beam rod support is mounted, common welding equipment can be adopted, expensive professional welding equipment is not needed, the cost is saved, two positioning holes are not needed to be additionally arranged on the plane of the rear front beam rod support, and the production process is optimized; and, the back front beam rod support plane that is located back front Shu Lagan mounting hole circumference has great space for prior art, reserves at least one U type adjusting pad installation position, has guaranteed behind the assembly of follow-up whole car, because the front beam rod support problem leads to the unable problem of location of four-wheel location after the back, makes the yield of whole back sub vehicle frame great, effectively improves the product qualification rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the working position structure of the present utility model.
FIG. 2 is a diagram illustrating the flip bit structure of the present utility model.
Fig. 3 is a schematic view of the working position structure of the first rear front beam rod bracket.
Fig. 4 is a schematic diagram of the turnover position of the first rear toe-in bracket.
Detailed Description
The present utility model is described in further detail below with reference to the accompanying drawings.
The following description is presented to enable one of ordinary skill in the art to practice the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate orientations or positions based on the orientation or positional relationship shown in the drawings, which are merely for convenience in describing the present simplified description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms are not to be construed as limiting the present utility model.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Referring to fig. 1 to 4, a frame-shaped multi-connecting-rod rear subframe welding assembly comprises a front cross beam 1 and a rear cross beam 2 which are oppositely arranged, wherein a left longitudinal beam 3 and a right longitudinal beam 4 are symmetrically arranged between the front cross beam 1 and the rear cross beam 2, and the front cross beam 1, the rear cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 are surrounded to form a frame-shaped structure.
The left longitudinal beam 3 and the right longitudinal beam 4 are of hydraulic bulging pipe structures, a hydraulic bulging pipe is adopted to replace a traditional stamping part splice welding mode, the number of production die inspection tools is reduced, the utilization rate of part materials is obviously increased, and cost is saved while performance can be ensured to the greatest extent.
The front cross beam 1, the rear cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 are provided with a plurality of reserved installation positions and reserved positions, so that the installation of a plurality of parts can be integrated, and only local parts are required to be modified without changing the whole or large-scale parts when the performance design is improved, thereby being simple and convenient.
Wherein, set up back suspension reservation position 21, locating hole and preceding suspension reservation position 12 on front beam 1 and the rear beam 2, when the back sub vehicle frame is used for four drives, can be through the installation sleeve pipe in back suspension reservation position 21 with the installation suspension subassembly, through the preceding suspension subassembly of reservation position 12 installation of front suspension, can make a sub vehicle frame satisfy two kinds of drive structure's vehicle use simultaneously, reduce research and development cost, increase the application scope of frame.
When the frame is used for a two-wheel drive vehicle, the holes of the reserved positions for four-wheel drive are exposed, so that impurities can be prevented from entering the pipe fitting of the frame, and the reserved positions 21 and 12 are provided with plugging structures, such as sealing covers, plugging covers or bolt covers.
A first rear front beam rod bracket 51 is arranged on the left longitudinal beam 3, a second rear front beam rod bracket 52 is arranged on the right longitudinal beam 4, and the second rear front beam rod bracket 52 is identical in structure with the first rear front beam rod bracket 51 and is a mirror image.
The first rear front beam rod bracket 51 includes a horizontal portion 510, a first bending portion 511 and a second bending portion 512 that are turned over along two ends of the horizontal portion 510 towards a vertical direction, a first protrusion lug 511a and a first extension leg 511b that are respectively extended along a front side and a rear side of the first bending portion 511, a second protrusion lug 512a and a second extension leg 512b that are respectively extended along the front side and the rear side of the second bending portion 512, a rear front Shu Lagan mounting hole 513 that is respectively provided on each of the first protrusion lug 511a and the second protrusion lug 512a, and at least one U-shaped adjusting pad mounting position C that is respectively reserved on a working plane of the first protrusion lug along a circumferential direction of the rear front Shu Lagan mounting hole 513 and a second protrusion lug working plane along a circumferential direction of the rear front Shu Lagan mounting hole 513.
Similarly, the second rear toe-in rod bracket 52 also includes a mirror image horizontal portion, a mirror image first bending portion and a mirror image second bending portion which are folded along two ends of the mirror image horizontal portion towards a vertical direction, a mirror image first lug and a mirror image first extending foot are respectively arranged along the front side and the rear side of the mirror image first bending portion in an extending manner, a mirror image second lug and a mirror image second extending foot are respectively arranged along the front side and the rear side of the mirror image second bending portion in an extending manner, rear front Shu Lagan mounting holes are respectively arranged on the mirror image first lug and the mirror image second lug, and at least one U-shaped adjusting gasket mounting position is respectively reserved on a working plane of the mirror image first lug along the circumference of the rear front Shu Lagan mounting hole and a working plane of the mirror image second lug along the circumference of the mirror image rear toe-in rod mounting hole.
In this way, the second extension leg 512b of the first rear front beam bracket 51 and the mirror image second extension leg of the second rear front beam bracket 52 extend toward the lower working surface 11 of the front cross member and are fixedly connected to the front cross member 1, respectively, and the outer edge of the first extension leg 511b is attached to the inner circular surface of the left side member, and obviously, the mirror image first extension leg is attached to the inner circular surface of the right side member.
The first and second turnover parts 511c and 512c that can be bonded to the outer circumferential surface of the side member are provided at the edge of the first lug 511a and the edge of the second lug 512a, respectively, and the first and second lugs are mirror-image in the same manner.
The above arrangement of the first extension leg 511b, the mirror image first extension leg, the first turnup 511c, the second turnup 512c, and the turnup on the second rear toe-in bracket 52 consistent with the structure thereof is beneficial to increasing the contact area of the rear toe-in bracket and the left longitudinal beam, and the stability and mechanical properties can be significantly improved.
It should be noted that, the connection between the horizontal portion 510 and the first bending portion 511 is concavely provided with an anti-rebound portion 514, which is beneficial to preventing rebound after molding and improving stability of the bracket.
Of course, a plurality of reserved mounting positions are also arranged on the left longitudinal beam 3 and the right longitudinal beam 4, and comprise a rear stabilizer bar bracket mounting position and a rear upper swing arm bracket mounting position, so that the suitability of the rear auxiliary frame can be improved.
According to the technical scheme, the process of the rear front Shu Lagan mounting holes is finished before the rear front beam rod support is mounted, common welding equipment can be adopted, expensive special welding equipment is not needed, cost is saved, two positioning holes are not needed to be additionally formed in the plane of the rear front beam rod support, the production process is optimized, compared with the prior art, the plane of the rear front beam rod support positioned in the circumferential direction of the rear front Shu Lagan mounting holes is provided with a larger space, at least one U-shaped adjusting gasket mounting position is reserved, the U-shaped adjusting gasket is mainly used when the four-wheel positioning cannot be adjusted to a qualified value before the assembly of a subsequent whole vehicle, the U-shaped adjusting gasket is additionally arranged on the plane of the rear front beam rod support for assisting in calibrating four-wheel positioning parameters, the technical problem caused by the problem of the rear front beam rod support is avoided, the processing precision of the rear front beam rod support is facilitated, and the qualification rate of products is improved.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (10)
1. The utility model provides a sub vehicle frame welding assembly behind many connecting rods of frame, includes front cross beam (1) and rear cross beam (2) that set up relatively, is located front cross beam (1) with be provided with left longeron (3) and right longeron (4) between rear cross beam (2), its characterized in that be provided with on left longeron (3) first back front beam pole support (51) be provided with behind the second on right longeron (4) front beam pole support (52), and one of them extends foot and behind the second front beam pole support (51) one of them extends foot respectively front cross beam's lower working face (11) and with front cross beam (1) fixed connection, be located behind front Shu Lagan mounting hole circumference first back front beam pole support plane and be located behind front Shu Lagan mounting hole (513) circumference second front beam pole support plane on reserve respectively and have at least one U type adjusting gasket mount position.
2. A frame shaped multi-link rear subframe welding assembly as claimed in claim 1, wherein said second rear front beam bar bracket (52) is structurally identical to and mirror images of said first rear front beam bar bracket (51).
3. The welding assembly for the frame-shaped multi-connecting-rod rear subframe according to claim 2, wherein the first rear front beam rod bracket (51) comprises a horizontal portion (510) and a first bending portion (511) and a second bending portion (512) which are folded along two ends of the horizontal portion (510) towards the vertical direction, a first lug (511 a) and a first extension foot (511 b) are respectively arranged along the front side and the rear side of the first bending portion (511) in an extending mode, a second lug (512 a) and a second extension foot (512 b) are respectively arranged along the front side and the rear side of the second bending portion (512) in an extending mode, a rear front Shu Lagan mounting hole (513) is formed in each of the first lug (511 a) and the second lug (512 a), and at least one U-shaped adjusting gasket mounting position is reserved on a working plane of the first lug in the circumferential direction of the rear front Shu Lagan mounting hole (513) and a working plane of the second lug in the circumferential direction of the rear front Shu Lagan mounting hole (513) respectively.
4. A frame-shaped multi-link rear subframe welding assembly according to claim 3, wherein the second extension leg (512 b) extends toward the lower working surface (11) of the front cross member and is fixedly connected to the front cross member (1), and the outer edge of the first extension leg (511 b) is attached to the circumferential surface of the left side member.
5. The welding assembly for the rear subframe with the frame-shaped multiple connecting rods as claimed in claim 4, wherein a first turnover part (511 c) capable of being attached to the outer circumferential surface of the left longitudinal beam is arranged at the edge of the first lug (511 a), and a second turnover part (512 c) capable of being attached to the outer circumferential surface of the left longitudinal beam is arranged at the edge of the second lug (512 a).
6. A frame-shaped multi-link rear subframe welding assembly according to claim 3, wherein the connection of the horizontal portion (510) and the first folded portion (511) is concavely provided with an anti-rebound portion (514).
7. A frame-shaped multi-link rear subframe welding assembly according to claim 3, wherein the left side member (3) and the right side member (4) are each of a hydro-bulging tube structure.
8. A frame-shaped multi-link rear subframe welding assembly according to claim 3, wherein a plurality of reserved mounting positions are provided on the left longitudinal beam (3) and the right longitudinal beam (4), including a rear stabilizer bar bracket mounting position and a rear upper swing arm bracket mounting position.
9. The frame-shaped multi-connecting-rod rear subframe welding assembly according to claim 8, wherein a plurality of reserved positions are arranged on the front cross beam (1) and the rear cross beam (2), and comprise a rear suspension reserved position (21), a positioning hole and a front suspension reserved position (12).
10. A frame shaped multi-link rear subframe welding assembly according to claim 9, characterized in that the rear suspension reserved bits (21) and the front suspension reserved bits (12) are configured with plugging structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322650555.8U CN220948170U (en) | 2023-09-28 | 2023-09-28 | Frame-shaped multi-connecting-rod rear auxiliary frame welding assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322650555.8U CN220948170U (en) | 2023-09-28 | 2023-09-28 | Frame-shaped multi-connecting-rod rear auxiliary frame welding assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220948170U true CN220948170U (en) | 2024-05-14 |
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ID=91012253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322650555.8U Active CN220948170U (en) | 2023-09-28 | 2023-09-28 | Frame-shaped multi-connecting-rod rear auxiliary frame welding assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220948170U (en) |
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2023
- 2023-09-28 CN CN202322650555.8U patent/CN220948170U/en active Active
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