JPH0725238A - Manufacture of door panel for automobile - Google Patents
Manufacture of door panel for automobileInfo
- Publication number
- JPH0725238A JPH0725238A JP15485593A JP15485593A JPH0725238A JP H0725238 A JPH0725238 A JP H0725238A JP 15485593 A JP15485593 A JP 15485593A JP 15485593 A JP15485593 A JP 15485593A JP H0725238 A JPH0725238 A JP H0725238A
- Authority
- JP
- Japan
- Prior art keywords
- sash
- welding
- extension flange
- door panel
- spot
- 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.)
- Granted
Links
Landscapes
- Resistance Welding (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用ドアパネルの
製造方法に係り、詳しくは自動車用サッシ付ドアパネル
のサッシの溶接方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an automobile door panel, and more particularly to a method for welding a sash of an automobile door panel with a sash.
【０００２】[0002]
【従来の技術】一般に、自動車用ドアパネルは、図３に
示すように、アウタパネル２、インナパネル３、及びサ
ッシ５からなり、サッシ５はアウタパネル２の延長フラ
ンジ７にろう付け又は炭酸ガスアーク溶接されている。
炭酸ガスアーク溶接は、図６に示すように、先端からシ
ールドガスである炭酸ガス２１をアーク部に放出し、供
給ローラ２２により消耗電極である電極ワイヤ２３を漸
次下方へ送り出し、電極ワイヤ２３の先端からアーク２
５を延長フランジ７及びサッシ５側に放出させて、溶融
池２６を形成して、延長フランジ７及びサッシ５を溶接
していた。2. Description of the Related Art Generally, an automobile door panel is composed of an outer panel 2, an inner panel 3 and a sash 5 as shown in FIG. 3, and the sash 5 is brazed or carbon dioxide arc welded to an extension flange 7 of the outer panel 2. There is.
In the carbon dioxide gas arc welding, as shown in FIG. 6, carbon dioxide gas 21 which is a shield gas is discharged from the tip to the arc portion, and the supply roller 22 gradually sends out the electrode wire 23 which is a consumable electrode to the lower side, and the tip of the electrode wire 23. From arc 2
5 was discharged to the extension flange 7 and the sash 5 side, the molten pool 26 was formed, and the extension flange 7 and the sash 5 were welded.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上述したよ
うなろう付け溶接では、アウタパネルの延長フランジと
サッシとの接合部にろう付け歪みが発生し、ドアパネル
を正確に形成することができないという虞があった。一
方、炭酸ガスアーク溶接では、溶融池２６による肉盛が
生じてしまい、肉盛削りをしなければならなかった。ま
た、ろう付け溶接や炭酸ガスアーク溶接では、人手を要
し手間がかかり、自動化しにくいといった欠点があっ
た。更に、サッシはスポット溶接した場合には、スポッ
ト溶接箇所に圧力をかけ、溶接後電極を引き離すと、圧
痕が生じてしまうといった製品品質上の問題があった。By the way, in the brazing welding as described above, there is a fear that brazing distortion occurs at the joint between the extension flange of the outer panel and the sash, and the door panel cannot be accurately formed. there were. On the other hand, in carbon dioxide gas arc welding, overlaying was caused by the molten pool 26, and overlaying had to be done. In addition, brazing welding and carbon dioxide arc welding have drawbacks in that they require manpower, are laborious, and are difficult to automate. Further, when the sash is spot-welded, there is a problem in product quality that pressure is applied to the spot-welded portion and the electrode is separated after welding to cause an indentation.
【０００４】そこで、本発明は、サッシ圧痕対策を施し
てアウタパネルの延長フランジとサッシとをスポット溶
接するように構成し、もって上述した課題を解決した自
動車用ドアパネルの製造方法を提供することを目的とす
るものである。Therefore, the present invention is intended to provide a method of manufacturing an automobile door panel, which is constructed by spot welding the extension flange of the outer panel and the sash by taking measures against the sash indentation, thereby solving the above-mentioned problems. It is what
【０００５】[0005]
【課題を解決するための手段】本発明は、上述事情に鑑
みなされたものであって、アウタパネル及びインナパネ
ルからなるドアパネルに別途成形したサッシを溶接して
なる自動車用ドアパネルの製造方法において、前記アウ
タパネルのベルトラインに設けられ上方向に延設された
延長フランジと、前記サッシとの接合部分をスポット溶
接してなることを特徴とするものである。また、前記延
長フランジと前記サッシとの接合部分のいずれかに溶接
用突起を設けると共に、該溶接用突起部位の延長フラン
ジ及びサッシをインダイレクトスポット溶接してなると
してもよい。The present invention has been made in view of the above circumstances, and is a method for manufacturing an automobile door panel by welding a sash separately molded to a door panel consisting of an outer panel and an inner panel. It is characterized in that the joint between the extension flange provided on the belt line of the outer panel and extending upward and the sash is spot-welded. Further, a welding projection may be provided on any of the joints between the extension flange and the sash, and the extension flange and the sash of the welding projection portion may be subjected to indirect spot welding.
【０００６】[0006]
【作用】上記の構成を有する第１の発明においては、ア
ウタパネルのベルトラインに設けられ上方向に延設され
た延長フランジと、サッシとの接合部分をスポット溶接
して、ドアパネルにサッシを溶接する。また、本願の第
２の発明においては、アウタパネルの延長フランジとサ
ッシとの接合部分のいずれかに溶接用突起を設け、該溶
接用突起部位の延長フランジ及びサッシをインダイレク
トスポット溶接して、ドアパネルにサッシを溶接する。
この際、溶接用突起により溶接をし易くし、部分的に溶
接を安定化させると共に、スポット溶接による圧接力が
吸収され、スポット溶接後、溶接用突起がフラットな状
態となり、サッシに圧痕が残ることはない。In the first aspect of the present invention having the above-mentioned structure, the sash is welded to the door panel by spot welding the joint between the extension flange provided on the belt line of the outer panel and extending upward and the sash. . Further, in the second invention of the present application, a welding projection is provided on any of the joints between the extension flange of the outer panel and the sash, and the extension flange and the sash of the welding projection portion are subjected to indirect spot welding to form a door panel. Weld the sash to.
At this time, the welding projections facilitate welding and partially stabilize the welding, and the pressure welding force due to spot welding is absorbed, and after spot welding, the welding projections become flat and indentations remain on the sash. There is no such thing.
【０００７】[0007]
【実施例】以下、図面に沿って、本発明によるドアパネ
ル製造方法の一実施例について説明する。図２は、本発
明に係るドアパネルを示す斜視図であり、同図に示すよ
うに、ドアパネル１はアウタパネル２、インナパネル
３、及びサッシ５を有しており、図中６はベルトライン
を示している。図３はドアパネルを自動車の前方から見
た側面図であり、アウタパネル２のベルトライン６の部
位には上方向に延長フランジ７が延設されている。そし
て、図４は図２のＡ−Ａ線断面図であるが、同図に示す
ように、前記延長フランジ７にはサッシ５の前部５ａが
当接されている。図５は図２のＢ−Ｂ線断面図でスポッ
ト溶接する前の状態を示すが、同図に示すように、前記
延長フランジ７の略中央にはサッシ側に向けて小円形の
突起９が突設され、突起９がサッシ５の後部５ｂと当接
するようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a door panel manufacturing method according to the present invention will be described below with reference to the drawings. FIG. 2 is a perspective view showing a door panel according to the present invention. As shown in FIG. 2, the door panel 1 has an outer panel 2, an inner panel 3 and a sash 5, and 6 in the figure denotes a belt line. ing. FIG. 3 is a side view of the door panel as seen from the front of the vehicle, and an extension flange 7 extends upward at the belt line 6 portion of the outer panel 2. 4 is a sectional view taken along the line AA in FIG. 2, the front portion 5a of the sash 5 is in contact with the extension flange 7 as shown in FIG. FIG. 5 shows a state before spot welding in a sectional view taken along the line BB in FIG. 2. As shown in the figure, a small circular protrusion 9 is formed in the approximate center of the extension flange 7 toward the sash side. The protrusion 9 is provided so as to come into contact with the rear portion 5b of the sash 5.
【０００８】また、図１（ａ）に示すように、インバー
ター式又は整流式のトランス１１にはケーブル１２を介
してスポット溶接ガン１３が接続され、スポット溶接ガ
ン１３の先端には電極１４が設けられ、トランス１１の
アース線１６は前記サッシ５に接続されている。更に、
インナパネル３側には溶接支持台１７が設けられてい
る。Further, as shown in FIG. 1A, a spot welding gun 13 is connected to an inverter type or rectification type transformer 11 via a cable 12, and an electrode 14 is provided at the tip of the spot welding gun 13. The ground wire 16 of the transformer 11 is connected to the sash 5. Furthermore,
A welding support base 17 is provided on the inner panel 3 side.
【０００９】本発明は以上のような構成よりなるので、
図４に示すように、アウタパネル２の延長フランジ７と
サッシ５ａが当接した状態でスポット溶接ガン１３の電
極１４の先端が延長フランジ７に圧接すると、延長フラ
ンジ７及びサッシ５ａが加圧されると共に、電極１４か
ら大電流が流れ、延長フランジ７とサッシ５ａがスポッ
ト溶接部８でスポット溶接される。また、図５及び図１
（ｂ）に示すように、延長フランジ７の突起９がサッシ
５に当接した状態でスポット溶接ガン１３の電極１４の
先端が延長フランジ７の突起９の部位に圧接すると、延
長フランジ７の突起９の部位及びサッシ５が加圧される
と共に、電極１４から大電流が流れ、電極１４の圧接箇
所の突起９の部位とサッシ５がスポット溶接され、溶接
後突起９の部位はフラットな状態となる。この際、突起
９により溶接をし易くし、部分的に溶接を安定化させる
と共に、スポット溶接ガン１３の電極１４による圧接力
が吸収されるので、サッシ５に圧痕が残るのを防止する
ことができる。Since the present invention is constructed as described above,
As shown in FIG. 4, when the tip of the electrode 14 of the spot welding gun 13 is pressed against the extension flange 7 while the extension flange 7 of the outer panel 2 and the sash 5a are in contact with each other, the extension flange 7 and the sash 5a are pressed. At the same time, a large current flows from the electrode 14, and the extension flange 7 and the sash 5a are spot-welded at the spot-welded portion 8. Also, FIG. 5 and FIG.
As shown in (b), when the tip of the electrode 14 of the spot welding gun 13 is pressed against the projection 9 of the extension flange 7 while the projection 9 of the extension flange 7 is in contact with the sash 5, the projection of the extension flange 7 is pressed. While the portion 9 and the sash 5 are pressed, a large current flows from the electrode 14, and the portion of the protrusion 9 at the pressure contact portion of the electrode 14 and the sash 5 are spot-welded, and the portion of the protrusion 9 after welding becomes flat. Become. At this time, the projections 9 facilitate welding and partially stabilize the welding, and since the pressure contact force of the electrode 14 of the spot welding gun 13 is absorbed, it is possible to prevent an indentation from remaining on the sash 5. it can.
【００１０】なお、上述実施例では延長フランジ側に突
起が設けられているが、これに限らず、サッシ側に突起
が設けられていてもよく、延長フランジ又はサッシいず
れか一方に突起が設けられていればよい。更に、上述実
施例では突起の形状が円形であるが、これに限らず長
円、ビード状等であってもよいことは勿論である。Although the protrusion is provided on the extension flange side in the above embodiment, the present invention is not limited to this, and the protrusion may be provided on the sash side, and the protrusion is provided on either the extension flange or the sash. If you have. Furthermore, although the shape of the protrusion is circular in the above-described embodiment, it is not limited to this and may be oval or bead-shaped.
【００１１】[0011]
【発明の効果】以上説明したように、本発明によれば、
アウタパネルの延長フランジとサッシとをスポット溶接
したため、自動化が容易となり、コストの削減を図るこ
とができる。また、本発明によれば、ろう付けによる歪
みも発生せず、炭酸ガスアーク溶接による肉盛りを削る
作業も必要とせず、作業の簡略化と製品品質の向上を図
ることができる。また、本願の第２の発明によれば、ア
ウタパネルの延長フランジ又はサッシのいずれか一方に
溶接用突起を設けたため、スポット溶接によりアウタパ
ネル及びサッシに圧痕変形、溶接歪みを僅少にすると共
に、溶接強度の安定化を図ることができる。As described above, according to the present invention,
Since the extension flange of the outer panel and the sash are spot-welded, automation can be facilitated and cost can be reduced. Further, according to the present invention, the distortion due to brazing does not occur, and the work of cutting up the build-up by carbon dioxide gas arc welding is not required, so that the work can be simplified and the product quality can be improved. Further, according to the second invention of the present application, since the welding projection is provided on either the extension flange or the sash of the outer panel, the indentation deformation and the welding distortion on the outer panel and the sash are made small by spot welding, and the welding strength is reduced. Can be stabilized.
【図１】本発明の自動車用ドアパネルの製造方法に係
り、（ａ）はドアパネル及びスポット溶接機を示す正面
図であり、（ｂ）は(a) のスポット溶接部分を示す部分
拡大側断面図である。FIG. 1 is a front view showing a door panel and a spot welder according to a method of manufacturing an automobile door panel of the present invention, and FIG. 1 (b) is a partially enlarged side sectional view showing a spot welded portion of (a). Is.
【図２】本発明に係る自動車用ドアパネルの斜視図であ
る。FIG. 2 is a perspective view of an automobile door panel according to the present invention.
【図３】本発明に係る自動車用ドアパネルの側面図であ
る。FIG. 3 is a side view of an automobile door panel according to the present invention.
【図４】図２のＡ−Ａ線断面図である。4 is a cross-sectional view taken along the line AA of FIG.
【図５】図２のＢ−Ｂ線断面図である。5 is a sectional view taken along line BB of FIG.
【図６】従来のアウタパネルの延長フランジとサッシと
の溶接方法である炭酸ガスアーク溶接を示す側面図であ
る。FIG. 6 is a side view showing carbon dioxide gas arc welding, which is a conventional welding method of an extension flange of an outer panel and a sash.
１ ドアパネル ２ アウタパネル ３ インナパネル ５ サッシ ５ａ サッシの前部 ５ｂ サッシの後部 ６ ベルトライン ７ 延長フランジ ８ スポット溶接部 ９ 突起 １１ トランス １２ ケーブル １３ スポット溶接ガン １４ 電極 １６ アース線 １７ 溶接支持台 1 Door Panel 2 Outer Panel 3 Inner Panel 5 Sash 5a Front part of sash 5b Rear part of sash 6 Belt line 7 Extension flange 8 Spot welding part 9 Protrusion 11 Transformer 12 Cable 13 Spot welding gun 14 Electrode 16 Ground wire 17 Welding support
Claims (2)
ドアパネルに別途成形したサッシを溶接してなる自動車
用ドアパネルの製造方法において、 前記アウタパネルのベルトラインに設けられ上方向に延
設された延長フランジと、前記サッシとの接合部分をス
ポット溶接してなることを特徴とする自動車用ドアパネ
ルの製造方法。1. A method of manufacturing an automobile door panel, which comprises welding a sash separately molded to a door panel composed of an outer panel and an inner panel, wherein an extension flange provided on a belt line of the outer panel and extending upward is provided. A method for manufacturing an automobile door panel, characterized in that the joint portion with the sash is spot-welded.
部分のいずれかに溶接用突起を設けると共に、該溶接用
突起部位の延長フランジ及びサッシをインダイレクトス
ポット溶接してなることを特徴とする請求項１記載の自
動車用ドアパネルの製造方法。2. The welding projection is provided on any one of the joints between the extension flange and the sash, and the extension flange and the sash of the welding projection portion are subjected to indirect spot welding. Item 2. A method for manufacturing an automobile door panel according to Item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15485593A JP3393348B2 (en) | 1993-06-25 | 1993-06-25 | Automotive Door Panel Welding Method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15485593A JP3393348B2 (en) | 1993-06-25 | 1993-06-25 | Automotive Door Panel Welding Method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0725238A true JPH0725238A (en) | 1995-01-27 |
| JP3393348B2 JP3393348B2 (en) | 2003-04-07 |
Family
ID=15593386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15485593A Expired - Fee Related JP3393348B2 (en) | 1993-06-25 | 1993-06-25 | Automotive Door Panel Welding Method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3393348B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007176382A (en) * | 2005-12-28 | 2007-07-12 | Toyota Auto Body Co Ltd | Door for vehicle |
-
1993
- 1993-06-25 JP JP15485593A patent/JP3393348B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007176382A (en) * | 2005-12-28 | 2007-07-12 | Toyota Auto Body Co Ltd | Door for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3393348B2 (en) | 2003-04-07 |
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