JPH03184685A - Manufacture of closed cross sectional structural body - Google Patents
Manufacture of closed cross sectional structural bodyInfo
- Publication number
- JPH03184685A JPH03184685A JP1321374A JP32137489A JPH03184685A JP H03184685 A JPH03184685 A JP H03184685A JP 1321374 A JP1321374 A JP 1321374A JP 32137489 A JP32137489 A JP 32137489A JP H03184685 A JPH03184685 A JP H03184685A
- Authority
- JP
- Japan
- Prior art keywords
- cut
- welding
- joining
- parts
- closed cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000003466 welding Methods 0.000 claims abstract description 45
- 238000005304 joining Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は少なくとも2つの部材を対応させて溶接・接
合する閉断面構造体の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a closed cross-section structure in which at least two members are welded and joined in correspondence.
〈従来の技術〉
閉断面構造体の製造方法については第7図に示すような
方法が良く知られている(実公昭61−11109号公
報)。<Prior Art> As for a method of manufacturing a closed cross-section structure, a method as shown in FIG. 7 is well known (Japanese Utility Model Publication No. 11109/1983).
この第7図では、閉断面構造体として自動車のサイドシ
ルlが示され、一方の部材であるサイドシルインナ2と
他方の部材であるサイドシルアウタ3の両部材にはそれ
ぞれ溶接・接合用端部としてのフランジ2a、3aおよ
び2b、3bを設けてあり、両フランジ2 a N 3
aおよび2b、3bを位置決めしながら溶接させ、ス
ポット溶接ガン4を用いたスポット溶接あるいは図示せ
ぬシーム溶接等の手段で溶接・接合することによりサイ
ドシルlを構成するようにしている。In FIG. 7, a side sill l of an automobile is shown as a closed cross-section structure, and both members, one member, the side sill inner 2, and the other member, the side sill outer 3, each have an end portion for welding and joining. Flanges 2a, 3a and 2b, 3b are provided, both flanges 2 a N 3
The side sill l is constructed by welding a, 2b, and 3b while positioning them, and welding and joining them by means such as spot welding using a spot welding gun 4 or seam welding (not shown).
〈発明が解決しようとする課題〉
しかしながら上記のような閉断面構造体の製造にあって
は、一方および他方の部材の溶接・接合用端部同士を正
確に位置合わせするために慎重な配慮が必要で、場合に
よっては位置合わせ用の治具を使用しなければならず、
更に位置合わせした後にその状態を維持するための作業
も必要で、溶接・接合以前の手間が大変である。また、
閉断面構造体が図示したような「サイドシル」の場合で
は、溶接・接合用端部としてのフランジが、完成された
サイドシル上に立上がり状態でそのまま残されることに
なって乗降時の障害ともなり、しかもその薄く突出した
形状は他部品との干渉を招き易く場合によっては破損や
変形等を起こし易いものである。<Problems to be Solved by the Invention> However, in manufacturing the above-mentioned closed cross-section structure, careful consideration is required to accurately align the welding/joining ends of one and the other members. necessary, and in some cases it may be necessary to use a positioning jig,
Furthermore, it is necessary to maintain the position after alignment, which requires a lot of effort before welding and joining. Also,
In the case where the closed section structure is a "side sill" like the one shown in the figure, the flange, which serves as the end for welding and joining, is left standing up on the completed side sill, causing an obstacle when getting on and off the vehicle. Moreover, its thin and protruding shape tends to cause interference with other parts, and in some cases can easily cause damage or deformation.
く課題を解決するための手段〉
上述したような課題を解決するために、この発明による
閉断面構造体の製造方法においては、先ず一方の部材の
溶接・接合用端部に切欠きを、そして他方の部材の溶接
・接合用端部にこの切欠きに対応する切起こしを予め設
けておき、切欠きと切起こしとを合致させることにより
、両部材の溶接・接合用端部を重ね合わせて、且つ密着
させることにした。そして次にそのままの状態で溶接・
接合用端部同士を溶接し、溶接後は切起こしを除去して
閉断面構造体を形成することにしたものである。Means for Solving the Problems> In order to solve the above-mentioned problems, in the method for manufacturing a closed cross-section structure according to the present invention, first, a notch is formed in the welding/joining end of one member, and A cut-out corresponding to this notch is provided in advance on the welding/joining end of the other member, and by matching the notch and the cut-out, the welding/joining end of both members can be overlapped. , and decided to make it close together. Then weld it in that state.
The joining ends are welded together, and after welding, the cut and raised portions are removed to form a closed cross-section structure.
く作 用〉
切欠きおよび切起こしを合致させれば一方の部材と他方
の部材の溶接・接合用端部同士の正確な位置決めが容易
に行われるものであり、併せて溶接・接合用端部同士の
重ね合わせと密着を容易に行うことができる。そして、
この状態の溶接・接合用端部同士を、例えばレーザービ
ームその他の溶接手段で溶接すれば、良好な溶接が可能
であり、その後、不要となった切起こしを必要に応じて
適宜除去することにより、この閉断面構造体は他部品と
の干渉を招くようなこともない。Function> If the notches and raised notches match, accurate positioning of the welding/joining ends of one member and the other member can be easily performed, and at the same time, the welding/joining ends They can be easily overlapped and brought into close contact with each other. and,
If the ends for welding/joining in this state are welded together using, for example, a laser beam or other welding means, good welding is possible.After that, by removing unnecessary cuts and raised parts as necessary, This closed cross-section structure does not cause interference with other parts.
〈実施例〉
以下、この発明の好適な実施例を第1図〜第6図に基づ
いて説明する。尚、各実施例中共通する部分については
図中同一符号をもって示し重複説明をなるべく省略する
ものである。<Embodiments> Hereinafter, preferred embodiments of the present invention will be described based on FIGS. 1 to 6. It should be noted that common parts in each embodiment are indicated by the same reference numerals in the drawings, and redundant explanation will be omitted as much as possible.
第1実施例(第1図〜第3図参照)
閉断面構造体としてのサイドシル5を構成する一方の部
材であるサイドシルアウタ6の溶接・接合用端部7に切
欠き8を設け、他方の部材であるサイドシルインナ9の
溶接・接合用端部lOには、前記の切欠き8に対応する
位置と幅サイズの切起こし11を設ける。切欠き8の奥
行きDと切起こし11の高さHlおよび切起こし11の
前部12の張出し幅Wはサイドシル5の設計条件や構造
条件に応じて適宜設定する。First embodiment (see FIGS. 1 to 3) A notch 8 is provided in the welding/joining end 7 of the side sill outer 6, which is one member constituting the side sill 5 as a closed cross-section structure, and The welding/joining end lO of the side sill inner 9, which is a member, is provided with a cut-and-raised part 11 having a position and width corresponding to the above-mentioned notch 8. The depth D of the notch 8, the height Hl of the raised cut 11, and the overhang width W of the front portion 12 of the raised cut 11 are appropriately set according to the design conditions and structural conditions of the side sill 5.
次に第2図に示すように、切欠き8と切起こし11とを
合致させてサイドシルアウタ6とサイドシルインナ9の
溶接・接合用端部7、IOを重ね合わせ、切欠き8の中
から突出する切起こし11を引き上げることにより密着
せしめる。更にレーザービーム溶接機13で溶接・接合
用端部7、IO同士を溶接する。そして最後に切起こし
11を除去して第3図に示すサイドシル5を構成する。Next, as shown in FIG. 2, the notch 8 and the raised notch 11 are aligned, the welding/joining ends 7 and IO of the side sill outer 6 and side sill inner 9 are overlapped, and the ends protrude from the notch 8. By pulling up the cut and raised parts 11, the parts are brought into close contact with each other. Furthermore, the welding/joining end portion 7 and the IOs are welded together using a laser beam welding machine 13. Finally, the cut and raised portion 11 is removed to form the side sill 5 shown in FIG. 3.
図中14は溶接部を示している。尚、切起こし11を用
いてサイドシルアウタ6とサイドシルインナ9を密着さ
せる手段については上記の方法に限るものではなく、サ
イドシルアウタ6とサイドシルインナ9を密着させる方
向に外力を加えるものであれば良い。また、この実施例
では一方、他方の両部材であるサイドシルアウタ6とサ
イドシルインナ9の下方部位6b、9bは従来同様とし
であるが、勿論この部位6b、9bに上記と同様の切起
こし11と切欠き8を設けて上述したように溶接・接合
するようにしても良い。In the figure, 14 indicates a welded portion. Note that the means for bringing the side sill outer 6 and side sill inner 9 into close contact using the cutting and raising 11 is not limited to the method described above, and any method may be used as long as external force is applied in a direction to bring the side sill outer 6 and side sill inner 9 into close contact. . Further, in this embodiment, the lower parts 6b and 9b of the side sill outer 6 and the side sill inner 9, which are both members, are the same as in the conventional case, but of course, the lower parts 6b and 9b are cut and raised 11 as described above. A notch 8 may be provided and welding/joining may be performed as described above.
第2実施例(第4図および第5図参照)この実施例は、
切起こし15を曲折させて、そこに挟み込み部16と組
付は挿入ガイド用の反り部17を設けている。この挟み
込み部16の存在により上下方向の位置決めも自ずと可
能となるほか、切欠き8と切起こし15を合致させれば
サイドシルアウタ6とサイドシルインナ18は自ずと密
着することとなり、サイドシルアウタ6とサイドシルイ
ンナ18に外力を加えるまでもなく、隙間の無い良好な
状態となった両溶接・接合用端部7.19を好適にレー
ザービーム溶接機13で溶接できるものである。そして
、反り部16の存在によりサイドシルアウタ6とサイド
シルインナ18同士、直接的には両溶接・接合用端部7
.19同士の組付け・挿入がし易くその分切欠き8と切
起こし15とを合致させ易い。Second Embodiment (See Figures 4 and 5) In this embodiment,
The cut and raised portion 15 is bent and a bent portion 17 is provided thereto for use as an insertion guide for assembly with a pinching portion 16. The existence of this pinching part 16 naturally enables vertical positioning, and if the notch 8 and the raised cut 15 match, the side sill outer 6 and the side sill inner 18 will naturally come into close contact, and the side sill outer 6 and the side sill inner Without applying any external force to 18, both ends 7 and 19 for welding and joining, which are in a good condition with no gaps, can be welded suitably with the laser beam welder 13. Due to the presence of the warped portion 16, the side sill outer 6 and the side sill inner 18 are directly welded and joined at the end 7.
.. 19 can be easily assembled and inserted into each other, and accordingly, the notch 8 and the raised cut 15 can be easily matched.
第3実施例(第6図参照)
この実施例は一方の部材であるサイドシルアウタ20の
切欠き21の先端に組付は挿入ガイド用の傾斜部22が
設けであるので、両溶接・接合用端部23.19同士の
組付け・挿入と切欠き21と切起こしL5の合致がより
一層容易である。Third Embodiment (See Figure 6) In this embodiment, a sloped part 22 for an insertion guide is provided at the tip of the notch 21 of the side sill outer 20, which is one member, so that it can be used for both welding and joining. Assembling and inserting the end portions 23 and 19 and matching the notch 21 and the raised cut L5 are even easier.
尚、この閉断面構造体の製造方法は少なくとも対応させ
る2つの部材があり、両部材が溶接・接合用端部を各々
備えるものであれば適用し得るものであって、一方と他
方の部材が必ずしも独立した部材である必要はない。単
体の部品に上記の如き2つの部材と同様の2つの部位が
あれば本発明を十分適用し得る。Note that this method of manufacturing a closed cross-section structure can be applied as long as there are at least two corresponding members, and both members are each provided with an end for welding/joining, and one member and the other member are It does not necessarily have to be an independent member. The present invention can be fully applied if a single component has two parts similar to the two members described above.
〈発明の効果〉
以上述べたように、この発明に係る閉断面構造体の製造
方法によれば、溶接すべき両部材の溶接・接合用端部に
設けた切欠きおよび切起こしを合致させることにより位
置決めが可能となり、特別な治具や位置合わせの作業が
不要となる。このことは製造の自動化・省力化にとり、
極めて好都合となることであり、製造時間の短縮を可能
とし、無滴コストダウンをも飛躍的に促進するものであ
る。<Effects of the Invention> As described above, according to the method for manufacturing a closed cross-section structure according to the present invention, the notch provided at the welding/joining ends of both members to be welded and the notch can be made to match. This makes positioning possible, eliminating the need for special jigs or positioning work. This is important for automation and labor saving in manufacturing.
This is extremely convenient, makes it possible to shorten manufacturing time, and dramatically promotes dropless cost reduction.
また、両部材の溶接・接合用端部同士を密着させ隙間を
無くして良好な溶接をすることが可能な上、従来の如き
フランジを用いず片側面からのみで溶接可能となること
で、従来のスポット溶接やシーム溶接ではなく、レーザ
ービーム溶接その他の高密度エネルギーによる、より良
好な溶接が可能となり、閉断面構造体自体の品質向上を
図ることができる。またこのことは、溶接姿勢や角度の
自由度が大幅に増大するものであり、製造装置の改善を
もたらし、同じく製造の自動化・省力化、そしてコスト
ダウンを促進するものであることは勿論のこと、閉断面
構造体の形状そのものの設計・製作の自由度を画期的に
増大させるものである。In addition, it is possible to make good welds by bringing the welding/joining ends of both parts into close contact with each other and eliminating gaps, and it is possible to weld only from one side without using a flange as in the past. Instead of spot welding or seam welding, it is possible to perform better welding using laser beam welding or other high-density energy, and it is possible to improve the quality of the closed cross-section structure itself. In addition, this greatly increases the degree of freedom in welding postures and angles, leading to improvements in manufacturing equipment, which of course also promotes manufacturing automation, labor saving, and cost reduction. This dramatically increases the degree of freedom in designing and manufacturing the shape of the closed cross-section structure itself.
また更には、従来のフランジを必要としないので溶接箇
所は略平坦となり、閉断面構造体の使用においては他の
部品や機器等との干渉が減ぜられ、外観においては美観
が向上するほか、とりわけ車両等の室内やドアおよびそ
の近辺に用いた場合には、その居住性や乗降性の向上を
もたらすものであり、同じく車両の外面に用いた場合、
薄く突出したフランジが無く略平坦であることは、他と
の干渉による破損や変形に対する耐久性を著しく向上さ
せるものである。Furthermore, since the conventional flange is not required, the welded area is approximately flat, and when using a closed cross-section structure, interference with other parts and equipment is reduced, and the appearance is improved. In particular, when used in the interior of a vehicle, on or near the door, it improves the comfort and ease of getting in and out of the vehicle, and when used on the exterior of the vehicle,
Being substantially flat without a thin protruding flange significantly improves durability against damage and deformation due to interference with other objects.
第1図はこの発明に係る閉断面構造体であるサイドシル
の製造方法の一実施例を示す分解斜視図、第2図は第1
図に示す実施例の両部材を組み合わせた状態で溶接をし
ている斜視図、
第3図は溶接後に切起こしを除去したサイドシルの完成
状態と溶接部を示す斜視図、
第4図はこの発明の別の実施例を示す第1図相当の斜視
図、
第5図は第4図に示す実施例の両部材を組み合わせた状
態で溶接をしている第2図相当の斜視図、第6図はこの
発明の更に別の実施例を示す要部の斜視図、そして、
第7図は従来の閉断面構造体としてのサイドシルの製造
方法を示す斜視図である。
6.20 ・・−・−・・・・・サイドシルアウタ(
一方の部材)9.18 ・・・−サイドシルインナ(
他方の部材)7.10.19.23−・・・・・・−・
・・・ 溶接・接合用端部8.21 −−−・・−−−
−−・・・・・−・・・・・・−切欠き11.15−−
−−−・・−・・・−・・−・ 切起こし13−・−−
−−−・−−−−−−−一・−・・・−・・・・・
レーザービーム溶接機16 ・−・・−・・・・・−
・・−・−・・−・・・ 挟み込み部7
22
反り部
傾斜部FIG. 1 is an exploded perspective view showing one embodiment of a method for manufacturing a side sill, which is a closed cross-section structure according to the present invention, and FIG.
Figure 3 is a perspective view showing the completed state of the side sill with the cut and raised parts removed after welding, and the welded part; Figure 4 is a perspective view of the present invention. Fig. 5 is a perspective view equivalent to Fig. 1 showing another embodiment, Fig. 5 is a perspective view equivalent to Fig. 2 showing welding of both members of the embodiment shown in Fig. 4 combined; 7 is a perspective view of a main part showing still another embodiment of the present invention, and FIG. 7 is a perspective view showing a method of manufacturing a side sill as a conventional closed cross-section structure. 6.20 ・・−・−・・・・Side sill outer (
one member) 9.18 ...-Side sill inner (
other member) 7.10.19.23--...
... End for welding/joining 8.21 ---...---
-----------Notch 11.15--
−−−・・−・−・・−・ Cut and raise 13−・−−
−−−・−−−−−−−1・−・−・・・・・
Laser beam welding machine 16 ・−・・−・・・・・−
・・−・−・・−・ Sandwiched part 7 22 Warped part inclined part
Claims (4)
る閉断面構造体の製造方法において、一方の部材の溶接
・接合用端部に設けられた切欠きと、この切欠きに対応
させて、他方の部材の溶接・接合用端部に設けられた切
起こしとを合致させた状態で両部材の溶接・接合用端部
を重ね合わせて、且つ密着せしめ、 両部材の溶接・接合用端部同士を溶接し、そして、 溶接後に切起こしを除去することを特徴とする閉断面構
造体の製造方法。(1) In a method for manufacturing a closed cross-section structure in which at least two members are welded and joined in correspondence, a notch provided at the welding and joining end of one member, and a notch corresponding to this notch, The ends for welding and joining of both members are overlapped and brought into close contact with the cut and raised parts provided at the end for welding and joining of the other member, and the ends for welding and joining of both members are aligned. A method for manufacturing a closed cross-section structure, characterized by welding the two together and removing the cut and raised portion after welding.
起こしを合致させた状態で一方と他方の両部材が相対的
に拘束される、請求項(1)記載の閉断面構造体の製造
方法。(2) The closed cross-section structure according to claim (1), wherein the cut-and-raised portion is provided with a pinching portion, and when the notch and the cut-and-raised portion are aligned, both the one and the other members are relatively restrained. Production method.
挿入ガイド用の反り部が設けてある、請求項(2)記載
の閉断面構造体の製造方法。(3) The method for manufacturing a closed cross-section structure according to claim (2), wherein a curved part for an assembly insertion guide is provided at the tip of the pinching part provided in the cut and raised part.
けてある、請求項(1)ないし(3)のいずれかに記載
の閉断面構造体の製造方法。(4) The method for manufacturing a closed cross-section structure according to any one of claims (1) to (3), wherein an inclined part for an assembly insertion guide is provided at the tip of the notch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1321374A JPH03184685A (en) | 1989-12-13 | 1989-12-13 | Manufacture of closed cross sectional structural body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1321374A JPH03184685A (en) | 1989-12-13 | 1989-12-13 | Manufacture of closed cross sectional structural body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03184685A true JPH03184685A (en) | 1991-08-12 |
Family
ID=18131854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1321374A Pending JPH03184685A (en) | 1989-12-13 | 1989-12-13 | Manufacture of closed cross sectional structural body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03184685A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002178189A (en) * | 2000-12-19 | 2002-06-25 | Mitsubishi Alum Co Ltd | Weld joint structure |
JP2005247264A (en) * | 2004-03-08 | 2005-09-15 | Nissan Motor Co Ltd | Floor structure of vehicle body |
KR20170040279A (en) | 2014-09-05 | 2017-04-12 | 신닛테츠스미킨 카부시키카이샤 | Automobile member |
-
1989
- 1989-12-13 JP JP1321374A patent/JPH03184685A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002178189A (en) * | 2000-12-19 | 2002-06-25 | Mitsubishi Alum Co Ltd | Weld joint structure |
JP4545309B2 (en) * | 2000-12-19 | 2010-09-15 | 三菱アルミニウム株式会社 | Welded joint structure |
JP2005247264A (en) * | 2004-03-08 | 2005-09-15 | Nissan Motor Co Ltd | Floor structure of vehicle body |
KR20170040279A (en) | 2014-09-05 | 2017-04-12 | 신닛테츠스미킨 카부시키카이샤 | Automobile member |
US10196091B2 (en) | 2014-09-05 | 2019-02-05 | Nippon Steel & Sumitomo Metal Corporation | Automobile member |
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