JP2525078Y2 - Joint structure between plate members - Google Patents
Joint structure between plate membersInfo
- Publication number
- JP2525078Y2 JP2525078Y2 JP1991050917U JP5091791U JP2525078Y2 JP 2525078 Y2 JP2525078 Y2 JP 2525078Y2 JP 1991050917 U JP1991050917 U JP 1991050917U JP 5091791 U JP5091791 U JP 5091791U JP 2525078 Y2 JP2525078 Y2 JP 2525078Y2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- shaped member
- bulging portion
- folded
- bulging
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】[Detailed description of the invention]
【０００１】[0001]
【産業上の利用分野】本考案は、板状部材同士の接合構
造に関し、詳しくはヘミング加工により、第１の板状部
材の端部が、端部に折返し部を有する第２の板状部材の
本体部と折返し部との間に挟み込まれた第１の板状部材
と第２の板状部材との接合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between plate members, and more particularly, to a second plate member having a bent end portion at the end by hemming. The present invention relates to a joint structure between a first plate-shaped member and a second plate-shaped member sandwiched between a main body portion and a folded portion.
【０００２】[0002]
【従来の技術】自動車のボンネットやトランクリッド等
の外板部品はアウタパネルとインナパネルとが組み付け
られることにより形成されている。このようにアウタパ
ネルとインナパネルとを組み付ける場合には、従来、イ
ンナパネルの端部を、端部に折返し部が形成されたアウ
タパネルの本体部と折返し部とで挾み込んだ後、アウタ
パネルの折返し部とインナパネルの端部とアウタパネル
の本体部とをスポット溶接により接合していた。2. Description of the Related Art Outer panel parts such as a hood and a trunk lid of an automobile are formed by assembling an outer panel and an inner panel. In the case where the outer panel and the inner panel are assembled as described above, conventionally, the end of the inner panel is sandwiched between the body of the outer panel having the folded portion formed at the end and the folded portion, and then the outer panel is folded. The part, the end of the inner panel, and the body of the outer panel were joined by spot welding.
【０００３】[0003]
【考案が解決しようとする課題】ところが、上記のよう
にヘミング加工されたアウタパネルとインナパネルとを
スポット溶接する場合には、インナパネルの端部を挾み
込んだアウタパネルの本体部と折返し部とをスポット溶
接のヘッド電極とバック電極とで挟圧し、その状態で両
電極間に電流を流すため、溶接箇所に両電極による加圧
力によって歪みが発生すると共にスポット溶接に伴う打
痕が発生する。このため、スポット溶接後の修正工程で
歪みや打痕を除去する必要があり、組付のサイクルタイ
ムが長くなるという問題があった。However, in the case of spot welding the outer panel and the inner panel which have been hemmed as described above, when the outer panel body and the folded portion sandwich the end of the inner panel. Is sandwiched between the head electrode and the back electrode for spot welding, and a current flows between the two electrodes in that state, so that the welding force causes distortion due to the pressing force of both electrodes and dents due to spot welding. For this reason, it is necessary to remove the distortion and the dent in the correction process after the spot welding, and there has been a problem that the cycle time of the assembly becomes long.
【０００４】また、少量多種生産ラインでは、組付ライ
ンを流れる板状部材の種類が頻繁に変わり、これに伴っ
て溶接箇所も変わるため、上記板状部材を支持するバッ
ク電極の位置をそれに応じて変更しなければならない。
ところが、バック電極は通常載置台に固定されていて専
用化されているため、板状部材の種類毎にバック電極の
位置が異なる専用の載置台を準備しなければならず、設
備費用が高騰するという問題及び載置台の取替え作業が
煩わしく組付作業性が低下するという問題がある。[0004] In addition, in a small-quantity production line, the type of plate-like member flowing through the assembly line frequently changes, and accordingly, the welding location also changes. Therefore, the position of the back electrode supporting the plate-like member is changed accordingly. Must be changed.
However, since the back electrode is usually fixed to the mounting table and is dedicated, it is necessary to prepare a dedicated mounting table in which the position of the back electrode is different for each type of the plate-like member, and the equipment cost rises. In addition, there is a problem that the work of replacing the mounting table is troublesome, and the workability of assembling is reduced.
【０００５】そこで、本件考案者等は、第１の板状部材
の端部を、端部に折返し部を有する第２の板状部材の本
体部と折返し部との間に挟み込んだ後、第２の板状部材
の折返し部にレーザビームを照射して第２の板状部材の
折返し部と第１の板状部材の端部とをレーザ溶接するこ
とを考慮した。Therefore, the present inventors sandwiched the end of the first plate-like member between the body of the second plate-like member having a folded portion at the end and the folded portion, Consideration was given to irradiating the folded portion of the second plate-shaped member with a laser beam and laser-welding the folded portion of the second plate-shaped member and the end of the first plate-shaped member.
【０００６】このようにすると、第２の板状部材の本体
部に溶接跡が残らないと共に、板状部材を支持するバッ
ク電極の位置をそれに応じて変更する必要性も解消した
が、レーザ溶接の熱によって第２の板状部材の本体部に
熱歪みが発生するという新たな問題が発生した。In this way, no welding mark is left on the main body of the second plate-like member, and the necessity of changing the position of the back electrode supporting the plate-like member has been solved. A new problem that heat distortion occurs in the main body of the second plate-shaped member due to the heat of the second plate-shaped member has occurred.
【０００７】上記に鑑み、本考案は、第２の板状部材の
折返し部と第１の板状部材の端部とをレーザ溶接するに
も拘らず、第２の板状部材の本体部に熱歪みが発生しな
いようにすることを目的とする。[0007] In view of the above, the present invention provides a method for attaching a folded portion of a second plate-shaped member and an end of the first plate-shaped member to a main body of the second plate-shaped member. An object is to prevent thermal distortion from occurring.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
め、本考案は、第１の板状部材の端部及び第２の板状部
材の折返し部に膨出部を形成し、第１板状部材の膨出部
と第２の板状部材の本体部との間に空間を形成すること
により、レーザ溶接の熱が第２の板状部材の本体部に伝
わり難くするものである。In order to achieve the above-mentioned object, the present invention is to form a bulging portion at an end of a first plate-like member and a folded portion of a second plate-like member. By forming a space between the bulging portion of the plate-shaped member and the main body of the second plate-shaped member, heat of laser welding is hardly transmitted to the main body of the second plate-shaped member.
【０００９】具体的に本考案が講じた解決手段は、板状
部材同士の接合構造として、第１の板状部材の端部は、
端部に折返し部を有する第２の板状部材の本体部と上記
折返し部との間に挟み込まれており、上記第１の板状部
材の端部には、上記第２の板状部材の本体部との間に空
間部が形成されるよう上記第２の板状部材の折返し部側
に膨出する第１膨出部が形成されており、上記第２の板
状部材の折返し部における上記第１膨出部と対応する部
位には、上記第１膨出部と同方向に膨出し且つ上記第１
膨出部と面接触する第２膨出部が形成されており、上記
第１膨出部と第２膨出部とはレーザ溶接により接合され
ている構成とするものである。Specifically, a solution taken by the present invention is that the end of the first plate-like member has a joint structure of plate-like members.
An end of the second plate-shaped member is sandwiched between the body of the second plate-shaped member having a folded portion at the end and the folded portion, and an end of the second plate-shaped member is provided at an end of the first plate-shaped member. A first bulging portion that bulges toward the folded portion side of the second plate-shaped member is formed so that a space is formed between the main plate portion and the main plate portion. A portion corresponding to the first bulging portion bulges in the same direction as the first bulging portion, and
A second bulging portion that is in surface contact with the bulging portion is formed, and the first bulging portion and the second bulging portion are configured to be joined by laser welding.
【００１０】[0010]
【作用】上記の構成により、第１の板状部材の端部に形
成された第１膨出部と第２の板状部材の折返し部に形成
された第２膨出部とは同方向に膨出し且つ面接触してい
るため、第１膨出部と第２膨出部とをレーザ溶接によっ
て確実に接合することができる。According to the above construction, the first bulging portion formed at the end of the first plate-like member and the second bulging portion formed at the folded portion of the second plate-like member move in the same direction. Since the bulges are in surface contact with the bulges, the first bulges and the second bulges can be securely joined by laser welding.
【００１１】また、第１の板状部材の第１膨出部及び第
２の板状部材の第２膨出部が共に第２の板状部材の折返
し部側へ膨出し、第１の板状部材の第１膨出部と第２の
板状部材の本体部との間に空間部が形成されているた
め、該空間部の存在によってレーザ溶接の熱は第２の板
状部材の本体部に伝わり難いので、第２の板状部材の本
体部に熱歪みが発生しない。The first swelling portion of the first plate-like member and the second swelling portion of the second plate-like member both swell toward the folded portion of the second plate-like member, and Since the space is formed between the first bulging portion of the plate-shaped member and the main body of the second plate-shaped member, the heat of the laser welding is reduced by the existence of the space. Since the heat is hardly transmitted to the second plate-shaped member, no thermal distortion occurs in the main body of the second plate-shaped member.
【００１２】[0012]
【実施例】以下、本考案の実施例を図面に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１及び図２は本考案の一実施例に係る板
状部材同士の接合構造を示し、同図において、１０は第
１の板状部材であって、１２は端部に裏面側（図１及び
図２における上側）へ折り返された折返し部１２ａを有
する第２の板状部材である。第１の板状部材１０の端部
１０ａは、第２の板状部材１２の本体部１２ｂと折返し
部１０ａとに挾み込まれている。FIGS. 1 and 2 show a joint structure between plate members according to an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a first plate member, and 12 denotes an end portion on the back side. This is a second plate-shaped member having a folded portion 12a folded upward (upward in FIGS. 1 and 2). The end 10a of the first plate-shaped member 10 is sandwiched between the main body 12b and the folded portion 10a of the second plate-shaped member 12.
【００１４】第１の板状部材１０の端部１０ａには、第
１の板状部材１０の裏面側つまり第２の板状部材１２の
折返し部１２ａ側へ膨出した第１膨出部１４が端部１０
ａの縁に沿って所定間隔で形成されており、また、第２
の板状部材１２の折返し部１２ａにおける第１膨出部１
４と対応する部位には、第２の板状部材１２の裏面側つ
まり第１膨出部１４と同方向へ膨出した第２膨出部１６
が形成されており、第１膨出部１４と第２膨出部１６と
は面接触している。An end 10a of the first plate member 10 has a first bulging portion 14 bulging toward the back side of the first plate member 10, that is, toward the folded portion 12a of the second plate member 12. Is the end 10
a are formed at predetermined intervals along the edge of a.
First bulging portion 1 in the folded portion 12a of the plate member 12 of FIG.
4, a second bulging portion 16 bulging in the same direction as the first bulging portion 14 on the back side of the second plate-shaped member 12.
Are formed, and the first bulging portion 14 and the second bulging portion 16 are in surface contact.
【００１５】図２に示すように、第２膨出部１６の表面
にレーザビーム１８が照射されており、第２の板状部材
１２の第２膨出部１６と第１の板状部材１０の第１膨出
部１４とはレーザ溶接部２０によって接合されている。
この場合、上述のように第１膨出部１４と第２膨出部１
６とが面接触しているので、両者はレーザ溶接部２０に
よって確実に接合している。As shown in FIG. 2, the surface of the second bulging portion 16 is irradiated with a laser beam 18 so that the second bulging portion 16 of the second plate-like member 12 and the first plate-like member 10 The first bulging portion 14 is joined by a laser welded portion 20.
In this case, as described above, the first bulging portion 14 and the second bulging portion 1
6 are in surface contact with each other, so that they are securely joined by the laser weld 20.
【００１６】また、第１膨出部１４及び第２膨出部１６
が共に裏面側へ膨出しているために、第１膨出部１４と
第２の板状部材１２の本体部１２ｂとの間に空間部２２
が形成されており、該空間部２２の存在によってレーザ
ビーム１８の熱が第２の板状部材１２の本体部１２ｂに
伝わり難くなっているので、第２の板状部材１２の本体
部１２ｂには熱歪みが発生しない。The first bulging portion 14 and the second bulging portion 16
Are both bulged to the back side, so that a space 22 is provided between the first bulged portion 14 and the main body 12b of the second plate-shaped member 12.
Is formed, and it is difficult for the heat of the laser beam 18 to be transmitted to the main body 12b of the second plate-shaped member 12 due to the presence of the space 22. No thermal distortion occurs.
【００１７】[0017]
【考案の効果】以上説明したように、本考案に係る板状
部材同士の接合構造によると、第１の板状部材の第１膨
出部及び第２の板状部材の第２膨出部が共に第２の板状
部材の折返し部側へ膨出し、第１の板状部材の第１膨出
部と第２の板状部材の本体部との間に空間部が形成され
ているため、該空間部の存在によってレーザ溶接の熱は
第２の板状部材の本体部に伝わり難いので、第２の板状
部材の本体部に熱歪みが発生しない。As described above, according to the joint structure of the plate members according to the present invention, the first bulge portion of the first plate member and the second bulge portion of the second plate member. Are both bulged toward the folded portion side of the second plate-shaped member, and a space is formed between the first bulged portion of the first plate-shaped member and the main body of the second plate-shaped member. Due to the existence of the space, the heat of laser welding is not easily transmitted to the main body of the second plate-shaped member, so that no thermal distortion occurs in the main body of the second plate-shaped member.
【図１】本考案の一実施例に係る板状部材同士の接合構
造を示す斜視図である。FIG. 1 is a perspective view showing a joint structure between plate members according to an embodiment of the present invention.
【図２】上記板状部材同士の接合構造を示す断面図であ
る。FIG. 2 is a cross-sectional view showing a joint structure between the plate members.
１０…第１の板状部材 １０ａ…端部 １２…第２の板状部材 １２ａ…折返し部 １２ｂ…本体部 １４…第１膨張部 １６…第２膨張部 １８…レーザビーム ２０…レーザ溶接部 ２２…空間部 DESCRIPTION OF SYMBOLS 10 ... 1st plate-shaped member 10a ... End part 12 ... 2nd plate-shaped member 12a ... Folded part 12b ... Main body part 14 ... 1st expansion part 16 ... 2nd expansion part 18 ... Laser beam 20 ... Laser welding part 22 … Space
Claims (1)
部を有する第２の板状部材の本体部と上記折返し部との
間に挟み込まれており、 上記第１の板状部材の端部には、上記第２の板状部材の
本体部との間に空間部が形成されるよう上記第２の板状
部材の折返し部側に膨出する第１膨出部が形成されてお
り、 上記第２の板状部材の折返し部における上記第１膨出部
と対応する部位には、 上記第１膨出部と同方向に膨出し且つ上記第１膨出部と
面接触する第２膨出部が形成されており、 上記第１膨出部と第２膨出部とはレーザ溶接により接合
されていることを特徴とする板状部材同士の接合構造。An end portion of the first plate-like member is sandwiched between a body portion of a second plate-like member having a folded portion at the end portion and the folded portion; A first bulging portion that bulges toward the folded portion side of the second plate member so that a space is formed between the second plate member and the main body of the second plate member at an end portion of the second plate member. A portion corresponding to the first bulging portion in the folded portion of the second plate-like member is bulged in the same direction as the first bulging portion and faces the first bulging portion. A joint structure between plate-like members, wherein a second bulge portion that contacts is formed, and the first bulge portion and the second bulge portion are joined by laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991050917U JP2525078Y2 (en) | 1991-07-02 | 1991-07-02 | Joint structure between plate members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991050917U JP2525078Y2 (en) | 1991-07-02 | 1991-07-02 | Joint structure between plate members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0490185U JPH0490185U (en) | 1992-08-06 |
| JP2525078Y2 true JP2525078Y2 (en) | 1997-02-05 |
Family
ID=31785185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991050917U Expired - Lifetime JP2525078Y2 (en) | 1991-07-02 | 1991-07-02 | Joint structure between plate members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525078Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0220676A (en) * | 1988-07-08 | 1990-01-24 | Nissan Motor Co Ltd | Coupling method for hemming joined part |
-
1991
- 1991-07-02 JP JP1991050917U patent/JP2525078Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0490185U (en) | 1992-08-06 |
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Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19950718 |
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