CN212637741U

CN212637741U - Projection welding structure of automobile body connection reinforcement

Info

Publication number: CN212637741U
Application number: CN202021879737.2U
Authority: CN
Inventors: 闫凯; 于铁军; 汪骏; 刘立峰; 郑志强
Original assignee: Shanghai Heda Auto Accessory Co Ltd
Current assignee: Shanghai Heda Auto Accessory Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-03-02
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a projection welding structure of a car body connection reinforcement, which comprises a reinforcement pipe and a stamping part, wherein the stamping part is provided with a through hole; the stamping part is provided with three convex hulls which are uniformly distributed around the through hole; the bottom of the reinforcing pipe is welded on the three convex bags, the welding is simple, the strength is enough, the welding can be carried out in a small space, the welding thermal deformation is hardly influenced, the welding time is shortened, and therefore the production cost is also reduced.

Description

Projection welding structure of automobile body connection reinforcement

Technical Field

The utility model relates to a projection welding welded structure of car body coupling reinforcement.

Background

Compared with the current foreign design level, the current automobile design has a great gap, and the domestic research and practical application development of the structure becomes very important in such an environment. The research and development investment cost of each large host factory to new vehicle models is controlled more and more tightly and the requirement on the research and development period is shorter and shorter, which directly puts forward higher requirements on automobile manufacturers and automobile component manufacturers, and particularly in the structural design of automobile parts, the structure has to be simplified but the original strength is guaranteed, so that the aim of reducing the cost is achieved. In the designed welding stage of stamping parts in the automobile industry, the existing structure is welded together by arc welding through fixture positioning, the welding time of the arc welding is long, the cost is relatively high, the deformation of parts can be caused due to the high heat generated by the arc welding, and the welding rosin joint can be caused due to the small space, so that the connection strength is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's defect, providing a projection welding welded structure of car body coupling reinforcement, the welding is simple, and not only intensity is enough, can also weld in little space, and welding thermal deformation hardly has the influence, and the weld time has also shortened to manufacturing cost has also been reduced.

One technical scheme for achieving the purpose is as follows: a projection welding structure of an automobile body connection reinforcement comprises a reinforcement pipe and a stamping part, wherein the stamping part is provided with a through hole; the stamping part is provided with three convex hulls which are uniformly distributed around the through hole; the bottom end of the reinforcing pipe is welded on the three convex hulls.

The projection welding structure of the automobile body connecting reinforcement is characterized in that the edge of each convex hull is overlapped with the edge of the through hole.

Adopt the utility model discloses a projection welding welded structure's of automobile body coupling reinforcement technical scheme, through being three convex closure on the stamping workpiece and adopting the projection welding mode of standard again with the reinforced pipe with the stamping workpiece welding together, make the welding simple, not only intensity is enough, can also weld in little space, the welding thermal deformation does not hardly have the influence, and the weld time has also shortened to manufacturing cost has also been reduced.

Drawings

FIG. 1 is a schematic structural view of a projection welding structure of a vehicle body connection reinforcement according to the present invention;

FIG. 2 is a schematic structural diagram of a convex hull on the stamping part;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

fig. 5 is a front view of the stamping.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:

referring to fig. 1 to 5, in an embodiment of the present invention, a projection welding structure for a connection reinforcement of an automobile body includes a reinforcement pipe 2 and a stamping part 1, wherein the stamping part 1 is provided with a through hole 11; three convex hulls 3 are arranged on the stamping part 1, the three convex hulls 3 are uniformly distributed around the through hole 11, and one side edge of each convex hull 3 is coincided with the edge of the through hole 11; the bottom end of the reinforcing pipe 2 is welded to the three bosses 3. The included angle between every two adjacent convex hulls of the three convex hulls 3 is 120 degrees.

A projection welding process of an automobile body connection reinforcement adopts the projection welding structure of the automobile body connection reinforcement to perform projection welding, and specifically comprises the following steps:

s1, uniformly arranging three convex hulls 3 around the through hole 11 of the stamping part 1 at intervals;

and S2, projection welding the bottom end of the reinforced pipe 1 on the three convex hulls 3, and melting the three convex hulls 3 on the stamping part 1 during projection welding so as to weld the stamping part 1 and the reinforced pipe 2 together. The welding strength is enhanced, the welding can be carried out in a small space, the welding thermal deformation is prevented, and the production cost is reduced.

In the designed welding stage of stamping parts in the automobile industry, the existing welding structure and process are welded together by arc welding, like the small space, the arc welding easily causes cold joint to reduce the connection strength, and the high heat generated by the arc welding also causes the deformation of parts. The utility model discloses a projection welding welded structure not only simply can also weld in little space, places more easily in narrow and small space, and the heat of production has hardly the influence to the part. Therefore, the design of the utility model has very positive significance.

To sum up, the utility model discloses a projection welding welded structure of car body coupling reinforcement is through being three convex closure on the stamping workpiece, adopts the projection welding mode of standard again to weld reinforced pipe and stamping workpiece together, makes the welding simple, and not only intensity is enough, can also weld in little space, and welding thermal deformation hardly has the influence, and the weld time has also shortened to manufacturing cost has also been reduced.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. A projection welding structure of an automobile body connection reinforcement is characterized by comprising a reinforcing pipe and a stamping part, wherein the stamping part is provided with a through hole; the stamping part is provided with three convex hulls which are uniformly distributed around the through hole; the bottom end of the reinforcing pipe is welded on the three convex hulls.

2. A projection-welded structure of a vehicle body joint reinforcement according to claim 1, wherein a side edge of each convex hull coincides with an edge of said through-hole.