CN216969243U

CN216969243U - Novel lower swing arm before punching press welding

Info

Publication number: CN216969243U
Application number: CN202123008732.XU
Authority: CN
Inventors: 陈阳
Original assignee: Anhui Vie Automobile Parts Co ltd
Current assignee: Anhui Vie Automobile Parts Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-07-15
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to the field of frames, and discloses a novel stamping and welding front lower swing arm, wherein the whole front lower swing arm is flat, the front lower swing arm comprises a front connecting part (1) and a rear connecting part (2) which extend outwards, the front connecting part (1) is provided with a first mounting hole (3) for accommodating a front point bushing mounting pipe (4), and the front point bushing mounting pipe (4) is fixedly welded in the first mounting hole (3); the end of the rear connecting part (2) is provided with a second mounting opening (5) used for limiting a rear point lining mounting pipe (6), the second mounting opening (5) is an annular opening, the outside of the rear point lining mounting pipe (6) is limited by the second mounting opening (5), and the rear point lining mounting pipe (6) and the second mounting opening (5) are fixedly welded. The lower swing arm has the advantages of high strength, light weight, accurate size and the like.

Description

Novel lower swing arm before punching press welding

Technical Field

The utility model relates to the field of automobile frames, in particular to a novel stamping and welding front lower swing arm.

Background

The suspension system is an important component of the automobile and has great influence on the driving smoothness, the maneuverability, the stability and the comfort of the automobile. The front lower swing arm is used as a guide and force transmission element of an automobile suspension system, various forces and moments acting on the wheel are transmitted to the automobile body, the wheel is guaranteed to move according to a certain track, and the service performance of the automobile suspension system is guaranteed due to sufficient strength and service life. The one end that it contains the bush is connected with sub vehicle frame, and the other end is connected with the knuckle through assembling the ball round pin. Due to the rapid development of the automobile industry, particularly the situation of new momentum blowout of the automobile in the field of new energy sources is shown, and the structures of the front lower swing arm are various. For example, chinese patent CN201610792762.9 discloses a front lower swing arm assembly, which is basically a casting, and has a heavy weight, a weight-reducing hole structure designed for reducing the weight, and many stress concentration points, and it cannot absorb shock, and the precision is poor, and the rear point bushing mounting sleeve is a semi-surrounding structure, and the stress concentration phenomenon is likely to occur.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a novel stamping and welding front lower swing arm.

In order to solve the technical problem, the utility model is solved by the following technical scheme:

the utility model provides a novel swing arm under before punching press welding which characterized in that: the front lower swing arm is integrally flat and comprises a front connecting part and a rear connecting part which extend outwards, the front connecting part is provided with a first mounting opening for accommodating a front point bushing mounting pipe, and the front point bushing mounting pipe is fixedly welded in the first mounting opening; the tip of back connecting portion is formed with the second installing port that is used for restricting back point bush installation pipe, and the second installing port is annular mouthful, and the outside of back point bush installation pipe is restricted by the second installing port, and back point bush installation pipe and second installing port be welded fastening.

Preferably, preceding lower swing arm includes top panel and lower panel, top panel and lower panel are the stamping workpiece, the limit portion punching press bending type of top panel and lower panel forms the welding limit, the welding deformation mutual welded fastening of top panel and lower panel, top panel and lower panel have the fourth mounting hole of the third mounting hole that forms the second mounting hole in second mounting hole position punching, third mounting hole and fourth mounting hole coaxial line set up and form the second mounting hole, the outside of third mounting hole and fourth mounting hole forms the spacing limit of arc, the thickness on the spacing limit of arc is the thickness of top panel or lower panel.

As the preferred, the middle part of preceding lower swing arm is provided with the hole of dodging when being used for the assembly, dodges the hole and is formed by upper panel and lower panel punching press, and the border of upper panel and lower panel in the hole of dodging all is provided with flange structure.

Preferably, the upper panel and the lower panel are punched at the ball pin connecting part of the front lower swing arm to form a cavity, and a fixing hole for fixing the ball pin is formed in the bottom surface of the cavity.

Preferably, the front lower swing arm is provided with a positioning hole for a welding process.

Preferably, the three welding positioning holes are respectively positioned at the front connecting part, the rear connecting part and the ball pin connecting part.

Through the technical scheme, the utility model has the following technical effects:

the steel pipe is a punching welding part, and has the advantages of high strength, light weight, accurate size, no weight reduction area in the whole flat structure, difficulty in fracture, no stress concentration problem in the fully-surrounding structure adopted in the rear point bushing mounting pipe position, long service life, simple process and low cost.

Drawings

Fig. 1 is a schematic structural view of a lower swing arm.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic structural diagram of the upper panel.

The names of the parts designated by the numerical references in the drawings are as follows: 1-preceding connecting portion, 2-back connecting portion, 3-first installing port, 4-preceding point bush installation pipe, 5-second installing port, 6-back point bush installation pipe, 7-top panel, 8-lower panel, 9-third mounting hole, 10-fourth mounting hole, 11-arc spacing limit, 12-dodge hole, 13-flanging structure, 14-welding limit, 15-cavity, 16-fixed orifices, 18-locating hole, 19-ball round pin connecting portion.

Detailed Description

The utility model is described in further detail below with reference to the figures and examples.

Example 1

A novel stamping and welding front lower swing arm is flat, and comprises a front connecting part 1 and a rear connecting part 2 which extend outwards, wherein the front connecting part 1 is provided with a first mounting hole 3 for accommodating a front point bushing mounting pipe 4, and the front point bushing mounting pipe 4 is fixedly welded in the first mounting hole 3; the end of the rear connecting part 2 is provided with a second mounting opening 5 for limiting a rear point bushing mounting pipe 6, the second mounting opening 5 is an annular opening, the outside of the rear point bushing mounting pipe 6 is limited by the second mounting opening 5, and the rear point bushing mounting pipe 6 and the second mounting opening 5 are welded and fixed. The whole front lower swing arm is a flat piece, the middle part of the front lower swing arm is a hollow area, the necessary avoidance hole 12 is formed in the middle area of the front lower swing arm, and the welding positioning hole 18 is of a solid structure, so that the front lower swing arm is high in structural strength and light in weight.

In this embodiment, the front lower swing arm includes an upper panel 7 and a lower panel 8, both the upper panel 7 and the lower panel 8 are stamping parts, the edge parts of the upper panel 7 and the lower panel 8 are stamped and bent to form a welding edge 14, the welding deformation of the upper panel 7 and the lower panel 8 is welded and fixed to each other, 9 fourth mounting holes 10 of a third mounting hole forming the second mounting hole 5 are punched at the second mounting hole 5 of the upper panel 7 and the lower panel 8, the third mounting hole 9 and the fourth mounting hole 10 are coaxially arranged to form the second mounting hole 5, an arc-shaped limiting edge 11 is formed outside the third mounting hole 9 and the fourth mounting hole 10, and the thickness of the arc-shaped limiting edge 11 is the thickness of the upper panel 7 or the lower panel 8. The welded upper and

lower panels

7, 8 enclose a cavity area in the middle, and there is a distance between the panels of the upper and

lower panels

7, 8, which distance is used for the axial dimension of the shadow city first and second mounting openings 3, 5.

In this embodiment, the middle part of preceding lower swing arm is provided with dodge hole 12 when being used for the assembly, dodges hole 12 and is formed by the punching press of top panel 7 and lower panel 8, and top panel 7 and lower panel 8 all are provided with flange structure 13 at the border of dodging hole 12. This turn-ups structure 13 can guarantee that the work piece is more mellow, avoids limit portion burr scraping spare part to and scratch operation personnel.

In this embodiment, the upper panel 7 and the lower panel 8 are formed with a cavity 15 by stamping at the ball pin connecting portion 19 of the front lower swing arm, and a fixing hole 16 for fixing the ball pin is formed on the bottom surface of the cavity 15. The cavity 15 structure can reduce the distance between the upper panel 7 and the lower panel 8, thereby ensuring the strength of the ball pin connecting part 19 and avoiding the deformation caused by large local stress.

In this embodiment, the front lower swing arm is provided with a positioning hole 18 for a welding process. The three welding positioning holes 18 are located at the front connecting portion 1, the rear connecting portion 2, and the ball pin connecting portion 19. The assembly accuracy can be made higher.

The preceding swing arm down of this embodiment is for punching weld the union piece, and it is big to have intensity, light in weight, and the size is accurate moreover, and whole flat structure does not exist and subtracts heavy region, so difficult fracture, and 6 positions of back point bush installation pipe adopt full enclosure structure to do not have stress concentration problem moreover, long service life, simple process moreover, with low costs.

Example 2

The present embodiment is different from the embodiment in that: the middle part of the front lower swing arm is provided with a lightening hole.

Example 3

The present embodiment is different from the embodiment in that: the edge parts of the front lower swing arms are all in arc transition.

Claims

1. The utility model provides a novel swing arm under before punching press welding which characterized in that: the front lower swing arm is flat as a whole and comprises a front connecting part (1) and a rear connecting part (2) which extend outwards, the front connecting part (1) is provided with a first mounting opening (3) used for accommodating a front point bushing mounting pipe (4), and the front point bushing mounting pipe (4) is fixedly welded in the first mounting opening (3); the end of the rear connecting part (2) is provided with a second mounting opening (5) used for limiting a rear point lining mounting pipe (6), the second mounting opening (5) is an annular opening, the outside of the rear point lining mounting pipe (6) is limited by the second mounting opening (5), and the rear point lining mounting pipe (6) and the second mounting opening (5) are fixedly welded.

2. The novel stamping and welding front lower swing arm as claimed in claim 1, is characterized in that: preceding lower swing arm includes top panel (7) and lower panel (8), top panel (7) and lower panel (8) are the stamping workpiece, the limit portion punching press bending type of top panel (7) and lower panel (8) becomes welding limit (14), the welding deformation mutual welded fastening of top panel (7) and lower panel (8), top panel (7) and lower panel (8) have third mounting hole (9) and fourth mounting hole (10) that form second mounting hole (5) towards second mounting hole (5) position, third mounting hole (9) and fourth mounting hole (10) set up the formation second mounting hole (5) of coaxial line, the outside of third mounting hole (9) and fourth mounting hole (10) forms spacing limit of arc (11), the thickness of spacing limit of arc (11) is the thickness of top panel (7) or lower panel (8).

3. The novel stamping and welding front lower swing arm as claimed in claim 2, is characterized in that: the middle part of preceding lower swing arm is provided with when being used for the assembly dodge hole (12), dodges hole (12) and is formed by upper panel (7) and lower panel (8) punching press, and upper panel (7) and lower panel (8) all are provided with flange structure (13) at the border of dodging hole (12).

4. The novel lower swing arm before punching and welding of claim 2 is characterized in that: the upper panel (7) and the lower panel (8) are punched at the ball pin connecting part (19) of the front lower swing arm to form a cavity (15), and a fixing hole (16) for fixing a ball pin is formed in the bottom surface of the cavity (15).

5. The novel stamping and welding front lower swing arm according to claim 4, is characterized in that: the front lower swing arm is provided with a positioning hole (18) for a welding process.

6. The novel stamping and welding front lower swing arm as claimed in claim 5, wherein: the three welding positioning holes (18) are respectively positioned on the front connecting part (1), the rear connecting part (2) and the ball pin connecting part (19).