CN101157370A

CN101157370A - Autobody

Info

Publication number: CN101157370A
Application number: CNA2007101353814A
Authority: CN
Inventors: 赵云梅; 刘志民
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2007-11-07
Filing date: 2007-11-07
Publication date: 2008-04-09

Abstract

The invention relates to the field of the vehicle body structure; a vehicle body comprises a plurality of plates which are welded into a whole; the invention is characterized in that a folded edge is arranged along the side length on the edge of a first plate; a groove with a concave section is arranged along the side length on the edge of a second plate which is adjacent to the fist plate; the folded edge on the fist plate is extended to the groove on the second plate and is overlapped and welded with the groove; the invention has the advantages that the size precision of the place of the welding seam can be effectively enhanced and the entire intensity of the vehicle body is improved; the invention can overcome the existing defects that the external surface of the vehicle body, such as the top cover, is difficult to be stamped into shape for large-scale plate material and stamping equipments are not available in our country at present; and after the metal plate is separated into blocks, the size is hard to be controlled in a general welding way.

Description

Auto body

Technical field

The present invention relates to the automotive body structure field, specifically is exactly automobile body external panel, as cap structure.

Background technology

At present domestic automobile body external panel is all-in-one-piece as major parts such as top covers, but because of the big outer surface structure of some comparison of sizeses is subjected to the restriction of board dimension, can't whole punch forming, so need the piecemeal design; What some partitioned organizations adopted simultaneously is butt joint, some blocks of sheet materials are welded in the mode of butt welding be connected as a single entity, top cover body 1 and body 2 weld at solder joint 3 places after its edge part is drawn folding among Fig. 1, though this welding manner has avoided influencing because of solder joint the quality of outside face, but the commissure be difficult for to guarantee dimensional accuracy, wait through welding and cause the distortion equal error to bring difficulty for the postorder assembly process, and the bulk strength after the welding a little less than, when driving, easy to crack when vehicle body twists distortion.

Summary of the invention

Purpose of the present invention just provides a kind of auto body that improves structure, can effectively guarantee to weld the dimensional accuracy of meeting the place and the bulk strength that improves auto body.

A kind of auto body, it comprises some blocks of sheet materials that are welded to each other to one, it is characterized in that: there is the flanging that is provided with along the length of side in the edge of first sheet material, it is the groove of spill that the second sheet edge place adjacent with this first sheet material has along the cross section of length of side setting, and groove place and both joint welding that the flanging on described first sheet material stretches to second sheet material are one.

After adopting technique scheme, promptly adopt the Type of Welding of overlap joint, this Type of Welding guarantees the dimensional accuracy of commissure easily, and welding back bulk strength height.The present invention has overcome the vehicle body outside surface that reasons such as present domestic no large scale plate and pressing equipment cause, the uppity problem of size that welding manner causes as after top cover is difficult to whole stamping forming problem and panel beating piecemeal.

Description of drawings

Fig. 1 is the structural representation of the auto body top cover that constitutes of the welding manner of available technology adopting butt joint;

Fig. 2 is the birds-eye view of first top cover in the car body top cover;

Fig. 3 is the A-A cutaway view Amplified image among Fig. 2;

The birds-eye view of second top cover in Fig. 4 car body top cover;

Fig. 5 is the A-A cutaway view Amplified image among Fig. 4;

Fig. 6 is the birds-eye view of car body top cover;

Fig. 7 is the A-A cutaway view Amplified image during Fig. 6 is;

Fig. 8 is the B-B cutaway view during Fig. 6 is;

Fig. 9,10 is respectively the I among Fig. 8, the partial enlarged drawing of II portion.

The specific embodiment

Shown in Fig. 2～7, auto body comprises some blocks of sheet materials that are welded to each other to one, there is the flanging 11 that is provided with along the length of side in the edge of first sheet material 10, referring to Fig. 3, it is the groove 21 of spill that second sheet material 20 edges adjacent with this first sheet material 10 have along the cross section of length of side setting, see Fig. 5, groove 21 places and both joint welding that the flanging 11 on described first sheet material 10 stretches to second sheet material 20 are one, referring to Fig. 6,7.

Height between the plate face of top to the first sheet material 10 of described flanging 11 less than and near the degree of depth of the groove 21 on second sheet material 20, as shown in Figure 7, when guaranteeing weld strength, be convenient to the controlling dimension precision like this.

In conjunction with Fig. 5,7, the flanging 11 that the outside of described groove 21 is provided with on wide edge 22, the first sheet materials 10 is fitted with interior plate face and edge 12, is convenient to the controlling dimension precision when can guarantee weld strength like this.

The outer surface of first and

second sheet material

10,20 forms neat roof outward appearance on same level and smooth surface.

The bar seam place that described flanging 11 cooperates with groove 21 is provided with glue envelope 30, on the groove of two top cover lap-joints, coats fine and closely woven glue envelope 30, plays the leak free effect with the presentation quality of assurance top cover and to vehicle body.In conjunction with Fig. 7, with the position of definite gluing and the bond pad locations of width and welding, shown in Fig. 6,7, beat solder joint 40 in the welding of the junction of two top covers, this kind overlapping mode can carry out self aligning because of the dimensional discrepancy of blanked part at directions X to the top cover body, directions X is defined as the length direction of vehicle, has overcome the problem that the X that causes because of dimensional discrepancy is difficult to guarantee to quality of fit like this.

Be laid with concavo-

convex muscle portion

12,23 on the outside face of described first and

second sheet material

10,20, the concave and convex direction of the

muscle portion

12,23 on first and

second sheet material

10,20 of lap-joint is consistent and be the gap-like cooperation each other.

Muscle portion

12,23 gap each other on described first and

second sheet material

10,20 greater than, equal 2mm, for general medium sized vehicle, this gap is slightly larger than and gets final product near 2mm.

Shown in Fig. 8,9,10, at the Y of two top cover welded joint on section, promptly vertical and directions X, every muscle portion of top cover body in Fig. 9 12,23,13,24 places, position of the mo(u)lding line of side leave the panel beating gap that is not less than 2mm, the problem that the Z that causes with the dimensional discrepancy that overcomes because of two top cover body blanked parts can't guarantee to quality of fit to (vertical) and Y.

Claims

1. auto body, it comprises some blocks of sheet materials that are welded to each other to one, it is characterized in that: there is the flanging (11) that is provided with along the length of side in the edge of first sheet material (10), it is the groove (21) of spill that second sheet material (20) edge adjacent with this first sheet material (10) has along the cross section of length of side setting, and the flanging (11) on described first sheet material (10) stretches, and groove (21) to second sheet material (20) is located and both joint welding are one.

2. auto body according to claim 1 is characterized in that: the height between the plate face of top to the first sheet material (10) of described flanging (11) less than and near the degree of depth of the groove (21) on second sheet material (20).

3. auto body according to claim 1 and 2, it is characterized in that: the outside of described groove (21) is provided with wide edge (22), flanging (11) on first sheet material (10) is fitted with interior plate face and edge (12), and the outer surface of first and second sheet material (10), (20) is on same level and smooth surface.

4. auto body according to claim 1 and 2 is characterized in that: the bar seam place that described flanging (11) cooperates with groove (21) is provided with glue envelope (30).

5. auto body according to claim 1, it is characterized in that: be laid with concavo-convex muscle portion (12), (23) on the outside face of described first and second sheet material (10), (20), the concave and convex direction of first and second sheet material (10) of lap-joint, the muscle portion (12) on (20), (23) is consistent and be the gap-like cooperation each other.

6. auto body according to claim 5 is characterized in that: the muscle portion (12) on described first and second sheet material (10), (20), (23) gap each other greater than, equal 2mm.