CN214215933U

CN214215933U - Punching press type rear auxiliary frame

Info

Publication number: CN214215933U
Application number: CN202022582863.8U
Authority: CN
Inventors: 陈学磊; 官陈
Original assignee: Anhui Vie Automobile Parts Co ltd
Current assignee: Anhui Vie Automobile Parts Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-09-17
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a belongs to steel chassis structure design technical field, specifically is a punching press type rear sub frame, the front end of rear sub frame body is fixed and is provided with the front beam, the front end of front beam is all fixed and is installed the front beam planking, the bottom of the left and right sides of front beam planking is all fixed and is provided with the lower pull rod mounting point, this kind of novel rear sub frame, the lower pull rod lateral rigidity is high, lower pull rod support and front beam integrated punching press, the lower pull rod lateral force is directly conducted through the profile of front beam, the sub frame lower pull rod mounting point lateral rigidity is high, the sub frame is light in weight, low in cost, sub frame front beam adopts the stamping part tailor-welding structure, compared with hydraulic pipe beam part with low cost, the stamping part structure, the requirement that "each section of pipe beam part equals" does not exist, can adjust the cross beam section at will, enlarge the front beam envelope, under the condition that also guarantees the sub frame overall performance, the weight of the auxiliary frame can be greatly reduced, and the manufacturing cost of the auxiliary frame is further reduced.

Description

Punching press type rear auxiliary frame

Technical Field

The utility model discloses a belong to steel chassis structure design technical field, specifically be a sub vehicle frame behind punching press type.

Background

The auxiliary frame of the automobile chassis part is a framework of the front axle and the rear axle and is a constituent part of the front axle and the rear axle. In the final assembly of the vehicle, the tie rods, stabilizer bars, steering gear, suspension, etc. of the suspension part can be assembled on the sub-frame to form an axle assembly, and then the assembly is mounted on the vehicle body.

According to the existing auxiliary frame structure, a front cross beam adopts a hydraulic tubular beam structure, and a lower pull rod mounting bracket is formed by splicing and welding two stamping parts. The transverse rigidity of the lower pull rod is low, the transverse rigidity of the pull rod is particularly important when the auxiliary frame is designed, the transverse rigidity of the lower pull rod mounting point of the structure is loaded on the front tubular beam through the support, and two ends of the front tubular beam are overlapped with a front vehicle body sleeve to cause the tendency distortion of the tubular beam, so that the transverse rigidity of the pull rod is low. The auxiliary frame is overweight, and the cost rises, and the diameter size of sub frame structure front tubular beams is restricted by preceding automobile body sleeve pipe, and in order to satisfy the pull down rod lateral rigidity requirement, the thickness of front tubular beams will increase suitably, makes auxiliary frame weight rise, and manufacturing cost increases. And the front tubular beam is a hydraulic part, so that the cost is higher than that of a stamping structural part.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the low and sub vehicle frame weight overweight of current lower link transverse rigidity, the condition that the cost risees needs to improve lower link transverse rigidity, promotes the stability of back sub vehicle frame, needs to alleviate the weight of sub vehicle frame to reduce the cost, so proposed the utility model discloses a lower beam transverse rigidity improves the stability of back sub vehicle frame.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme: the utility model provides a sub vehicle frame behind punching press type, includes front beam planking, front beam inner panel, lower link mounting point, preceding automobile body mounting point sleeve pipe, indulges tubular beams, back automobile body mounting point sleeve pipe, rear beam, front beam, fixture block and back sub vehicle frame body, its characterized in that: the fixed front crossbeam that is provided with of front end of back sub vehicle frame body, the equal fixed mounting of front end of front crossbeam has the front beam planking, the left and right sides bottom of front beam planking all fixedly is provided with the lower link mounting point, the rear end fixed mounting of front crossbeam has the front beam inner panel, the left and right sides top of back sub vehicle frame body all fixedly is provided with indulges the tubular beams, the front end fixed welding of indulging the tubular beams has preceding automobile body mounting point sleeve pipe, the fixed welding of rear end of indulging the tubular beams has back automobile body mounting point sleeve pipe, the fixed rear crossbeam that is provided with of rear sub vehicle frame body's rear end, the left and right sides of back sub vehicle frame body all is provided with the fixture block.

Preferably, the tops of the front beam outer plate, the front beam inner plate and the front beam are all arc-shaped, and the front beam outer plate and the front beam inner plate are fixedly arranged at the front end and the rear end of the front beam through screws.

Preferably, the longitudinal tubular beam is fixedly welded in the groove of the fixture block, the groove of the fixture block is matched with the longitudinal tubular beam, and the longitudinal tubular beam is fixedly arranged at the tops of the rear cross beam and the front cross beam.

Preferably, the longitudinal tubular beam, the lower pull rod mounting point, the front vehicle body mounting point sleeve, the rear vehicle body mounting point sleeve and the clamping block are all provided with two, the longitudinal tubular beam is a bent tube, and the front vehicle body mounting point sleeve and the rear vehicle body mounting point sleeve are cylindrical sleeves.

Preferably, the front vehicle body mounting point bushing and the rear vehicle body mounting point bushing are respectively matched with a front vehicle body and a rear vehicle body.

Preferably, a protruding block is fixedly arranged at the front end of the rear subframe body.

Compared with the prior art, this novel back sub vehicle frame's lower link lateral stiffness is high, the integrative punching press of lower link support and front beam, the direct profile conduction through the front beam of the horizontal atress of lower link, sub vehicle frame lower link mounting point lateral stiffness is high, sub vehicle frame light in weight, low cost, sub vehicle frame front beam adopts the stamping workpiece tailor-welded structure, it is with low costs with hydraulic pressure tubular beams part relatively, the stamping workpiece structure, do not have the requirement that "each section of tubular beams spare equals", can adjust the crossbeam cross-section at will, enlarge the front beam envelope, under the condition of guaranteeing sub vehicle frame wholeness ability equally, the weight of sub vehicle frame can reduce by a wide margin, further reduce the manufacturing cost of sub vehicle frame.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

fig. 3 is a schematic view of a partial structure of the present invention.

In the figure: the front cross beam comprises a front cross beam outer plate 1, a front cross beam inner plate 2, a lower pull rod mounting point 3, a front vehicle body mounting point sleeve 4, a longitudinal pipe beam 5, a rear vehicle body mounting point sleeve 6, a rear cross beam 7, a front cross beam 8, a clamping block 9 and a rear auxiliary vehicle frame body 10.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a sub vehicle frame behind punching press type, the lower link transverse rigidity is high, the integrative punching press of lower link support and front beam, the direct profile conduction through the front beam of the horizontal atress of lower link, sub vehicle frame lower link mounting point transverse rigidity is high, sub vehicle frame light in weight, low cost, sub vehicle frame front beam adopts the stamping workpiece tailor-welded construction, compare with hydraulic pressure tubular beams part with low costs, the stamping workpiece structure, do not have the requirement that "each department's cross-section equals" of tubular beams spare, can adjust the crossbeam cross-section at will, enlarge the front beam envelope, under the condition of guaranteeing sub vehicle frame wholeness ability equally, the weight of sub vehicle frame can reduce by a wide margin, further reduce the manufacturing cost of sub vehicle frame, please refer to FIG. 1, including front beam planking 1, front beam inner panel 2, lower link 3, front body mounting point sleeve pipe 4, longitudinal pipe roof beam 5, back body mounting point sleeve pipe 6, back crossbeam 7 mounting point sleeve pipe, further reduce the manufacturing cost of sub vehicle frame, please refer to FIG. 1, including front beam planking 1, front beam inner panel, lower link 3, front body mounting point sleeve pipe 4, longitudinal pipe, rear beam, and longitudinal pipe are connected in the like, The front cross beam 8, the fixture block 9 and the rear auxiliary frame body 10;

referring to fig. 1-3, specifically, a front cross beam outer plate 1 is fixedly mounted at the front end of a front cross beam 8, lower pull rod mounting points 3 are fixedly arranged at the bottoms of the left side and the right side of the front cross beam outer plate 1, a front cross beam inner plate 2 is fixedly mounted at the rear end of the front cross beam 8, longitudinal tube beams 5 are fixedly arranged at the tops of the left side and the right side of a rear subframe body 10, front vehicle body mounting point sleeves 4 are fixedly welded at the front ends of the longitudinal tube beams 5, rear vehicle body mounting point sleeves 6 are fixedly welded at the rear ends of the longitudinal tube beams 5, a rear cross beam 7 is fixedly arranged at the rear end of the rear subframe body 10, fixture blocks 9 are arranged at the left side and the right side of the rear subframe body 10, the front cross beam outer plate 1 and the front cross beam inner plate 2 act on the front cross beam 8 for protection, the transverse rigidity and the stability are improved, the lower pull rod mounting points 3 act on the lower pull rods, the front vehicle body mounting point sleeves 4 act on the sleeved front vehicle body, the longitudinal tubular beam 5 acts on the fixed front vehicle body mounting point sleeve 4 and the rear vehicle body mounting point sleeve 6, the rear vehicle body mounting point sleeve 6 acts on the sleeved rear vehicle body, the rear cross beam 7 acts on the cross beam envelope to ensure the overall performance of the auxiliary frame, and the fixture block 9 acts on the fixed longitudinal tubular beam 5;

referring to fig. 1-3 again, specifically, the tops of the front beam outer plate 1, the front beam inner plate 2 and the front beam 8 are all arc-shaped, the front beam outer plate 1 and the front beam inner plate 2 are both fixedly mounted at the front end and the rear end of the front beam 8 through screws, the longitudinal tube beam 5 is fixedly welded in the groove of the fixture block 9, the groove of the fixture block 9 is matched with the longitudinal tube beam 5, the longitudinal tube beam 5 is fixedly arranged at the tops of the rear beam 7 and the front beam 8, the tube beam 5 and the lower pull rod mounting point 3, preceding automobile body mounting point sleeve pipe 4, back automobile body mounting point sleeve pipe 6 and fixture block 9 all are provided with two, and longitudinal pipe beam 5 is the bending pipe, and preceding automobile body mounting point sleeve pipe 4 and back automobile body mounting point sleeve pipe 6 are the cylinder type sleeve, and preceding automobile body mounting point sleeve pipe 4 and back automobile body mounting point sleeve pipe 6 respectively with preceding automobile body and back automobile body phase-match, the fixed protruding piece that is provided with in front of back sub vehicle frame body 10.

When the auxiliary frame is used specifically, the overall transverse rigidity of the front cross beam outer plate 1 and the front cross beam inner plate 2 is improved, the lower pull rod support and the front cross beam 8 are integrally stamped, the transverse stress of the lower pull rod is directly conducted through the profile of the front cross beam 8, the transverse rigidity of the lower pull rod mounting point 3 of the rear auxiliary frame body 10 is high, the rear auxiliary frame body 10 is light in weight and low in cost, the front cross beam 8 of the rear auxiliary frame body 10 is of a stamping part tailor-welding structure, the cost is low compared with that of a hydraulic pipe beam part, the stamping part structure is free of the requirement that the cross sections of all parts of the pipe beam part are equal, the cross section of the cross beam can be adjusted at will, the envelope of the front cross beam 8 is enlarged, under the condition that the overall performance of the auxiliary frame is guaranteed, the weight of the rear auxiliary frame body 10 can be greatly reduced, and the manufacturing cost of the rear auxiliary frame body 10 is further reduced.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a sub vehicle frame behind punching press type, includes front beam planking (1), front beam inner panel (2), lower link mounting point (3), preceding automobile body mounting point sleeve pipe (4), indulges tubular beams (5), back automobile body mounting point sleeve pipe (6), rear beam (7), front beam (8), fixture block (9) and back sub vehicle frame body (10), its characterized in that: the front end of back sub vehicle frame body (10) is fixed and is provided with front beam (8), the equal fixed mounting in front end of front beam (8) has front beam planking (1), the left and right sides bottom of front beam planking (1) is all fixed and is provided with down-link mounting point (3), the rear end fixed mounting of front beam (8) has front beam inner panel (2), the left and right sides top of back sub vehicle frame body (10) is all fixed and is provided with indulge tubular beams (5), the fixed welding of the front end of indulging tubular beams (5) has preceding automobile body mounting point sleeve pipe (4), the fixed welding of the rear end of indulging tubular beams (5) has back automobile body mounting point sleeve pipe (6), the fixed rear end that is provided with rear frame body (10) is provided with rear frame (7), the left and right sides of back sub vehicle frame body (10) all is provided with fixture block (9).

2. The stamped rear subframe of claim 1, wherein: the top of the front cross beam outer plate (1), the top of the front cross beam inner plate (2) and the top of the front cross beam (8) are arc-shaped, and the front cross beam outer plate (1) and the front cross beam inner plate (2) are fixedly arranged at the front end and the rear end of the front cross beam (8) through screws.

3. The stamped rear subframe of claim 1, wherein: the welding has vertical tubular beams (5) in the recess of fixture block (9), the recess and the vertical tubular beams (5) phase-match of fixture block (9), vertical tubular beams (5) are fixed to be set up in the top of rear frame member (7) and front frame member (8).

4. The stamped rear subframe of claim 1, wherein: the automobile body mounting point structure is characterized in that two longitudinal pipe beams (5), two lower pull rod mounting points (3), two front automobile body mounting point sleeves (4), two rear automobile body mounting point sleeves (6) and two clamping blocks (9) are arranged, each longitudinal pipe beam (5) is a bent pipe, and each front automobile body mounting point sleeve (4) and each rear automobile body mounting point sleeve (6) are cylindrical sleeves.

5. The stamped rear subframe of claim 1, wherein: the front vehicle body mounting point sleeve (4) and the rear vehicle body mounting point sleeve (6) are respectively matched with the front vehicle body and the rear vehicle body.

6. The stamped rear subframe of claim 1, wherein: and a protruding block is fixedly arranged at the front end of the rear auxiliary frame body (10).