CN1732106A

CN1732106A - Connecting joint for shell elements

Info

Publication number: CN1732106A
Application number: CN 200380107862
Authority: CN
Inventors: P·贝德纳尔斯基
Original assignee: ThyssenKrupp Stahl AG
Current assignee: ThyssenKrupp Steel Europe AG
Priority date: 2002-11-06
Filing date: 2003-10-28
Publication date: 2006-02-08
Anticipated expiration: 2023-10-28
Also published as: CN100398382C; DE10252790B3

Abstract

The invention relates to a steel vehicle body comprising interconnected shell elements that form a monocoque construction. The vehicle body is characterized in that, of two interconnected shell elements, one shell element (10, 11) has projections (10b, 11a, 11b) on its edge facing the other shell element (2). These projections are inserted though insertion openings (20a, 21a, 21b) provided in the other shell element (2). A cup (3a, 3b), which consists of a sleeve section (30a, 30b) and of a collar (31a, 31b) that is formed on one end thereof, is placed on the projections (10b, 11a, 11b) on both sides of the other shell element (2). Said collar (31a, 31b) of the cup (3a, 3b) is joined with material fit to the area of the other shell element (2), which surrounds the insertion opening (20a, 21a, 21b), and the sleeve section (30a, 30b) is joined with material fit to the projection (10b, 11a, 11b).

Description

The connecting joint that are used for shell elements

Technical field

The present invention relates to a kind of by metallic material, the auto body that especially is formed from steel, comprise that some constitute form, the interconnective shell elements of thin shell structure, especially comprise that a base plate and some have the sidewall of integrated side door sill, wherein, in per two interconnective shell elements, one of them shell elements has some salients on it points to the edge of another shell elements, these salients are inserted in the through hole that constitutes on described another shell elements.

Background technology

Make auto body based on shell elements and relate to a kind of technology of just setting up for a long time.Shell elements, in other words, at application and the plate of moulding mainly is made up of interconnective upper and lower shell, it have a kind of around wall function and have the function of load assembly simultaneously.The auto body of Zhi Zaoing like this, its characteristics are to have the number of parts of obvious minimizing in the lightweight while with respect to the space frame structure form (Space-Frame-Bauweise) based on section bar.

By US 5,297, the known a kind of auto body of 836A, it is made of amalgamation, flat shell elements.

First shell elements has some salients.Has cooresponding with it blind groove with second shell elements of the first shell elements amalgamation.For the amalgamation shell elements, the salient of first shell elements is inserted in the blind groove of second shell elements and uses adhesive there.By this invention, first shell elements constitutes reinforced plate.It is used to improve the rigidity between the connection of two car body panel.

Shell elements be interconnected to constitute a thin spot in the thin shell structure form.In orthodox method, two shell elements, for example the base plate of auto body and attached automobile sidewall connect by that constitute on base plate, crooked fringe region mutually, this fringe region abuts on the sidewall and material sealing ground connection with it, passes through the mode of welding usually.Though this connection mode is easy to realize, does not satisfy the current rigidity that requires yet provide, because it depends on material osed top bonded assembly intensity fatefully.Need a large amount of additional brace panel and reinforced plates in addition, this has improved manufacturing expense significantly.

Summary of the invention

Therefore the objective of the invention is, propose a kind of auto body with high rigidity that starts described type, it does not need very high manufacturing process expense just can realize.

This purpose will solve by this way by a kind of connecting joint that start described type, promptly on described salient, settle a collar respectively in the both sides of described another shell elements, the collar is made up of a sleeve sections and a collar that constitutes on an end of sleeve sections, and the collar of the collar is connected with the region material sealing ground around through hole of described another shell elements and sleeve sections is connected with salient material sealing ground.

The major advantage of this structure is, run through and be inserted in the through hole that on described another shell elements, constitutes by being located at salient on the described shell elements, make the auto body that constitutes by this mode bonded assembly shell elements have some and only have obviously bigger rigidity by the auto body of material osed top mode bonded assembly shell elements with respect to a kind of.Connect for the material osed top of interconnective shell elements in addition, realized the bonding pad that well to use by being placed on the salient collar.In the thin shell structure form, a plurality of salients of shell elements run through in the through hole that is inserted on being molded over sidewall, by by the interconnection technique that is used for the auto body of thin shell structure form of the present invention, make the special advantage (being that the little and number of parts of weight significantly reduces) of mode that the advantage of space frame technology aspect body stiffness can optimize and thin shell structure form combine, the result obtains a kind of vehicle body, and this vehicle body all surpasses the vehicle body of conventional confguration form on all correlation properties.

Connecting joint from prior art more known different implementation types various embodiments.

At publication number is the U.S. Patent application of 2001/0000119A1 and at american documentation literature 6,092, in 865 each self-described a kind of automobile bearing support that has connecting joint based on hollow profile with the space frame structure form, wherein, in order to be connected with automobile longitudinal girder, the end regions of crossbeam or vertical beam run through be inserted into the side direction of longeron or some corresponding sizes on the top side, mutually in the hole that is provided with of alignment and the mode by welding be connected with longeron.At US 6,092, in 865, the connecting joint of Gou Chenging are in addition by the bonded assembly angle support fixation with the gusset form like this.

At patent documentation US 5,848, provided a kind of method that is used to be manufactured on the connecting joint on the automobile bearing support that has the longitudinal and cross beam that constitutes as hollow profile in 469, wherein, the end regions of crossbeam runs through and is inserted into some and is positioned at the hole that the mutual alignment on the longeron is provided with.Yet here connecting is not to be undertaken by welding, but undertaken by an instrument that is inserted in the open end regions of the end face side of crossbeam, this instrument is stretching end regions and the therefore clamping in the zone in hole with this end regions and longeron outwardly radially. force-closedly

At american documentation literature 2,009, a kind of automobile chassis frame of two dimension has basically been described in 963, comprise two crossbeams that longeron is different with some.Crossbeam is cross form otch in its end, make them constitute projection directed in the vertical, that distribute around, and the length of projection is just over the wall thickness of longeron.Connecting joint between longitudinal and cross beam constitute like this, make each crossbeam so be inserted into deeply in an adaptive hole around it, that on the inboard of longeron, constitute, make these projectioies run through to be inserted in some openings that are provided with, be molded over the longeron outside that align with the hole and outside exceeding a little with one end thereof.On the projection that longeron and corresponding crossbeam are exceeding in the outside of longeron and in the zone of longeron inboard, be welded to each other in the hole.

The common ground of the connecting joint of all references document is, they are only applicable to the automobile bearing support of being made by hollow profile of two and three dimensions, and wherein, hollow profile is inserted in another section bar fully with its end face or runs through and inserts described another section bar.Therefore technical scheme shown in can not be transferred on the auto body with the thin shell structure form, because auto body that is to say that based on smooth the shell elements of two-dimensional expansion is so can not use the described simple interleaved plan of above-mentioned prior art simply.

By of the present invention one preferred embodiment, the through hole that constitutes on described another shell elements has an allowance with respect to the size of the salient of a described shell elements.What here consider is, the base plate of automobile has more relatively, the part salient far away of being separated by as large-sized shell elements, by being connected on the automobile sidewall by connecting joint of the present invention and may being connected on other shell elements, this has proposed extra high requirement to accurate manufacturing to car floor by these salients.Have under the situation of allowance with respect to the size design of salient in the hole that is positioned at the side door sill, therefore can allow bigger production tolerance.

What conform with purpose from the simple realizability of the angle aspect of manufacturing technology is that the material osed top connects and composes to being welded to connect.Under the situation about being welded to connect between the collar and described another shell elements, advantageously, be welded to connect and constitute laser welded seam.Therefore obtain the working strength characteristic of improvement of structure and higher rigidity.If laser welded seam looping seam can obtain an exceptionally close connection so between the collar and described another shell elements, therefore for example make moisture seepage drop to minimum in this position.

Under situation about being welded to connect between the salient of the collar and a described shell elements, be highly significant by means of spot welded enforcement.This welding manner can be easy to automation and allow in addition use existing equipment especially, and this helps reducing production costs.

Another kind of favourable embodiment by auto body of the present invention comprises that some constitute the shell elements of base plate and sidewall, and it is characterized in that: sidewall has integrated bottom door sill, is provided with some through holes at this.Can realize a kind of vehicle body by this solution, because be embedded into its salient in the crash-resistant at least especially body portion at this shell elements that constitutes base plate with connecting joint of some high especially rigidity.

Description of drawings

Explain the present invention by means of the accompanying drawing of describing an embodiment below.Wherein:

The base plate of the two-piece type that Fig. 1 is made by metallic material with the thin shell structure form and the transparent view of an automobile sidewall and two collars;

The section-drawing of the connecting joint of Fig. 2 between base plate and sidewall.

The specific embodiment

Press Fig. 1, the base plate 1 of two-piece type constitutes the thin shell structure form and is made by metallic material.Steel is especially suitable for metallic material, but also can be other materials, for example aluminium.Base plate 1 comprises part 10 and fwd part 11 of a back, they respectively shell 10u or the 11u below the shell 10o above or 11o and combine.The slit that is retained between these two

parts

10,11 is for example sealed by another unillustrated shell elements.The automobile sidewall 2 that also drawn in Fig. 1, it comprises that one is arranged on the side door sill 2s of the opening below that is used for automobile side-door and is made of the shell 2a of an outside and the shell 2i of a inside with steel thin shell structure form equally.The outside of top and following

shell

10o, 11o, 10u, 11u and the sidewall 2 of the

part

10,11 of the front and back of base plate 1 and shell 2a, the 2i of the inside interconnect (see figure 2) by unillustrated weld nugget at

edge

10r, 11r, 2r its bending, annular.

The aft section 10 of base plate 1 has two towards the salient 10a of the direction extension of automobile tail and the salient 10b of two directed outside.Correspondingly, the previous section 11 of base plate 1 has two towards the salient 11c of headstock direction extension and the salient 11a and the 11b of two pairs of difference directed outside.Moulding shell 2i three rectangles, that run through within and without, hole 20a, the 21a of 2a, 21b on the side door sill 2s of automobile sidewall 2,

outshot

10b, 11a, the 11b of toward side wall 2 directions of base plate 1 back and

fwd part

10,11 can run through in these holes of insertion.In addition, the internal dimensions of

hole

20a, 21a, 21b is selected like this, makes them have an allowance with respect to the outside dimension of the salient 10b, the 11a that match with it respectively, 11b.

Figure 1 illustrates two especially collar 3a, the 3b of steel in addition, they comprise sleeve sections 30a, a 30b and collar 31a, a 31b who constitutes separately on an end of sleeve sections.The internal dimensions of

sleeve sections

30a, 30b makes them seamlessly be installed in salient 11b and goes up (see figure 2) corresponding to the outside dimension of the salient 11b that matches with it.Another is set to the collar respectively for salient 10b and 11a, these collars are so not shown in Fig. 1 for the reason of whole overview.

Part

10,11 and the connecting joint that constitute of sidewall 2 by base plate 1 shown in Figure 2 are example with the hole 21b among the side door sill 2s of the salient 11b of the previous section 11 of base plate 1 and sidewall 2.

As shown in FIG. 2, among the hole 21b of salient 11b inserting side threshold 2s.Because the internal dimensions of hole 21b has an allowance with respect to the outside dimension design of salient 11b, so top and following shell 10o, 11u seamlessly abut on the edge of hole 21b, as shown in Figure 2.Collar 3a and 3b are installed in sidewall 2 both sides on salient 11b in addition.Wherein, the shell 2i inside the collar 31a of collar 3a abuts in goes up and the collar 31b of collar 3b abuts on the shell 2a of outside.Advantageously, salient 11b is inserted among the 21b of hole so deeply, makes the sleeve sections 30b of collar 3b finish with the edge of the end face side of salient 11b with flushing.For the captive joint node, the collar not only is connected with salient 11b but also with sidewall 2 materials sealing ground, preferably by means of the mode that is welded to connect.Press Fig. 2, by means of laser welded seam 4b collar 31a, the 31b of

collar

3a, 3b is connected on the sidewall 2 and connects 4a by a kind of spot

welding sleeve sections

30a, 30b are connected on the salient 11b.

Claims

1. auto body of making by metallic material, comprise that some constitute thin shell structure forms, interconnective shell elements, wherein, in per two interconnective shell elements, one of them shell elements (10,11) on pointing to the edge of another shell elements (2), it has some salient (10b, 11a, 11b), these salients are inserted at described another shell elements (2) and go up the through hole (20a that constitutes, 21a, 21b), it is characterized in that: at described salient (10b, 11a, 11b) upward settle a collar (3a respectively in the both sides of described another shell elements (2), 3b), the collar is by a sleeve sections (30a, 30b) with a collar (31a who on an end of sleeve sections, constitutes, 31b) form the collar (3a, collar (31a 3b), 31b) with described another shell elements (2) around through hole (20a, 21a, region material sealing ground 21b) connects and sleeve sections (30a, 30b) with salient (10b, 11a, 11b) material sealing ground connects.

2. by the described auto body of claim 1, it is characterized in that: the through hole (20a, 21a, 21b) that constitutes on described another shell elements (2) has an allowance with respect to the size of the salient (10b, 11a, 11b) of a described shell elements (10,11).

3. by claim 1 or 2 described auto bodys, it is characterized in that: described material osed top connects and composes to being welded to connect.

4. by the described auto body of claim 3, it is characterized in that: being welded to connect between the collar (3a, 3b) and described another shell elements (2) constitutes laser welded seam (4b).

5. by the described auto body of claim 4, it is characterized in that: described laser welded seam (4b) constitutes annulus.

6. by one of claim 3 to 5 described auto body, it is characterized in that: being welded to connect by spot welding (4a) between the salient (10b, 11a, 11b) of the collar (3a, 3b) and a described shell elements (10,11) realizes.

7. by one of claim 1 to 6 described auto body, comprise the shell elements that constitutes base plate (1) and sidewall (2), it is characterized in that: described sidewall (2) has integrated bottom door sill (2s), and through hole (20a, 21a, 21b) is set therein.