JPH0275420A - Constitution and manufacture of hemming section for automobile outer panel - Google Patents
Constitution and manufacture of hemming section for automobile outer panelInfo
- Publication number
- JPH0275420A JPH0275420A JP63224256A JP22425688A JPH0275420A JP H0275420 A JPH0275420 A JP H0275420A JP 63224256 A JP63224256 A JP 63224256A JP 22425688 A JP22425688 A JP 22425688A JP H0275420 A JPH0275420 A JP H0275420A
- Authority
- JP
- Japan
- Prior art keywords
- edge
- panel
- hemming
- emboss
- outer panel
- 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
- 238000009957 hemming Methods 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 238000004049 embossing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/026—Reinforcing the connection by locally deforming
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自動車用外板１例えばエンジンフード等のヘ
ミング構造とその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hemming structure for an automobile outer panel 1, such as an engine hood, and a method for manufacturing the hemming structure.
（従来の技術）
従来、自動車用外板のヘミング構造は、例えば、特開昭
５９−１２８０６４号公報や特開昭６２−１３１８１５
号公報に記載されているように、インナパネルの端縁部
を包み込むようにアウタパネルの端縁部を折り返すこと
でヘミング部が形成され、通常、さらに、このヘミング
部の両パネル間に、接着剤を介在させた接合となってい
る。(Prior Art) Conventionally, hemming structures for automobile outer panels have been disclosed in, for example, Japanese Patent Application Laid-open No. 59-128064 and Japanese Patent Application Laid-open No. 62-131815.
As described in the publication, a hemming part is formed by folding back the edge of the outer panel so as to wrap around the edge of the inner panel, and usually an adhesive is applied between both panels of this hemming part. This is a bond with an intervening .
そして、この接着剤として熱硬化性樹脂を用いた場合に
は、このヘミング加工後に塗装のオーブン等で加熱し硬
化させる。When a thermosetting resin is used as the adhesive, it is cured by heating in a coating oven or the like after the hemming process.
このように、ヘミング加工後にオーブン等まで搬送して
接着剤を硬化させるため、この搬送中にヘミング部の固
定が損なわれることがある。In this way, after the hemming process, the hemming part is transported to an oven or the like to harden the adhesive, so that the fixation of the hemmed portion may be impaired during this transport.
そこで、従来では、接着剤が完全に硬化するまで、ヘミ
ング部を固定保持するために、例えば。Therefore, in the past, in order to keep the hemming part fixed until the adhesive is completely cured, for example.
第５図に示すように、ヘミング部ｌをスポット溶接した
り、また、第６図に示すようにアウタパネルｌＯＯがイ
ンナパネル１０１に重合状態で折り返された一般部分（
第６図−イ）と、アウタパネルｌＯＯが空間１０２を保
持して折り返され、その端縁がブレージング溶接された
溶接部分（第６図−口）とを交互に形成する手段が講じ
られていた。As shown in FIG. 5, the hemming part l is spot welded, and as shown in FIG.
A measure was taken to alternately form a welded portion (FIG. 6-A) in which the outer panel 100 is folded back while retaining the space 102 and the edge thereof is brazed welded.
（発明が解決しようとする課題）
しかしながら、従来のように、スポット溶接でヘミング
部を固定保持するものでは、スポット溶接による熱歪が
発生し、これを修正するための表面の仕上げ作業が必要
になるし、さらに、ブレージング溶接では溶接コストが
高くなってしまうという問題点があった。(Problem to be solved by the invention) However, in the conventional method of fixing and holding the hemming part by spot welding, thermal distortion occurs due to spot welding, and surface finishing work is required to correct this. Furthermore, brazing welding has the problem of increasing welding costs.
本発明は、上述のような従来の問題点を解決するために
なされたもので、溶接加工を用いることなく、簡単な作
業で、しかも強固にヘミング部の固定保持ができる構造
及びその製造方法を提供することを目的としている。The present invention has been made in order to solve the above-mentioned conventional problems, and provides a structure and a manufacturing method thereof that can firmly fix and hold a hemming part with a simple operation without using welding. is intended to provide.
（課題を解決するための手段）
上述の目的を達成するために、本発明のヘミング部構造
は、インナパネルの端縁部を包み込むようにアウタパネ
ルの端縁部が折り返され、かつ、両パネルの端縁部が接
着剤により接着された自動車用外板のヘミング部構造に
おいて、前記ヘミング部を形成するインナパネルの端縁
部にインナ倒曲エンボスが形成され、前記ヘミング部を
形成するアウタパネルの端縁部に、前記インナ倒曲エン
ボスに合致するアウタ側凸エンボスが形成され、前記イ
ンナ倒曲エンボスの表面にアウタ側凸エンボスの裏面が
嵌着されている手段とした。(Means for Solving the Problems) In order to achieve the above-mentioned object, the hemming part structure of the present invention is such that the edge of the outer panel is folded back so as to wrap around the edge of the inner panel, and the edge of both panels is folded back. In the hemming part structure of an automobile outer panel in which the edge part is bonded with an adhesive, an inner bent emboss is formed on the edge part of the inner panel forming the hemming part, and the edge of the outer panel forming the hemming part is formed on the edge part of the inner panel forming the hemming part. An outer convex emboss that matches the inner inverted emboss is formed on the edge, and the back surface of the outer convex emboss is fitted onto the surface of the inner inverted emboss.
また、ヘミング製造方法にあっては、ヘミング部を形成
するインナパネルの端縁部に予めインナ倒曲エンボスを
形成し、次に、ヘミング部を形成するインナパネル及び
アウタパネルの端縁部の少なくとも一方に接着剤を塗布
し、その後、インナパネルの端縁部を包み込むようにア
ウタパネルの端縁部を完全に折り返す完全ヘム加工時に
、前記インナ倒曲エンボスに合致するアウタ側凸エンボ
スを形成しながら、インナ倒曲エンボスの表面にアウタ
側凸エンボスの裏面を嵌着させ、その後。Further, in the hemming manufacturing method, an inner bent embossing is formed in advance on the edge of the inner panel that forms the hemming part, and then, at least one of the edge parts of the inner panel and the outer panel that forms the hemming part is formed. After that, during the complete hemming process by completely folding the edge of the outer panel so as to wrap around the edge of the inner panel, while forming a convex emboss on the outer side that matches the inner bent emboss, Fit the back side of the outer convex emboss onto the surface of the inner bent emboss, and then.
接着剤を硬化させる手段とした。This was used as a means to harden the adhesive.
（作 用）
本発明では、インナパネルの端縁部に予め形成されたイ
ンナ倒曲エンボスと、アウタパネルの完全ヘム加工時に
成形されるアウタ側凸エンボスとが嵌着されることで、
接着剤が硬化されるまでの間、ヘミング部の固定が保持
される。(Function) In the present invention, the inner bent embossment formed in advance on the edge of the inner panel and the outer side convex embossment formed during complete hemming of the outer panel are fitted, so that
The hemming portion remains fixed until the adhesive is cured.
（実施例） 以下、本発明の実施例を図面により詳述する。(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
尚、実施例を説明するにあたり、自動車用外板としてエ
ンジンフードを例にとる。In explaining the embodiment, an engine hood will be taken as an example of an automobile outer panel.
第１図は本発明第１実施例のヘミング部構造を示す断面
図、第２図は実施例構造を示す平面図である。FIG. 1 is a sectional view showing a hemming portion structure according to a first embodiment of the present invention, and FIG. 2 is a plan view showing the structure of the embodiment.
図において、Ｈはエンジンフードを示す。このエンジン
フードＨは、インナパネル２とアウタパネル３の端縁２
０．３０間士をヘミング部ｌにより接合して形成されて
いる。In the figure, H indicates an engine hood. This engine hood H consists of an edge 2 of an inner panel 2 and an outer panel 3.
It is formed by joining 0.30 mm by a hemming part l.
前記ヘミング部１は、インナパネル２の端縁部２０を包
み込むように、アウタパネル３の端縁部３０が折り返さ
れ、かつ両端縁部２０．３０間には熱硬化性樹脂系の接
着剤４により接着されている。尚、インナパネル２は、
端縁部２０よりも内側を折曲させて一般部２３がアウタ
パネル２から離間するよう形成されている。In the hemming part 1, the edge part 30 of the outer panel 3 is folded back so as to wrap around the edge part 20 of the inner panel 2, and a thermosetting resin adhesive 4 is applied between both edge parts 20 and 30. It is glued. In addition, the inner panel 2 is
The general portion 23 is formed so as to be spaced apart from the outer panel 2 by bending the inner side of the edge portion 20 .
また、ヘンミング部ｌを形成するインナパネル２の端縁
部２０には１円形に曲設させたインナ倒曲エンボス２１
が形成され、かつ、ヘミング部ｌを形成するアウタパネ
ル３の端縁部３０にも、前記インナ倒曲エンボス２１に
合致するアウタ倒曲エンボス３１が凸段され、そして、
インナ倒曲エンボス２１の表面にアウタ倒曲エンボス３
１の裏面が嵌着された、いわゆるカシメ構造によって、
ヘミング部ｌが固定保持されている。Further, an inner bent embossing 21 curved in a circular shape is provided on the end edge 20 of the inner panel 2 forming the hemming portion l.
is formed, and an outer inverted embossment 31 that matches the inner inverted embossment 21 is also formed on the edge portion 30 of the outer panel 3 forming the hemming portion l, and,
Outer bent emboss 3 on the surface of inner bent emboss 21
Due to the so-called caulking structure in which the back side of 1 is fitted,
The hemming portion l is held fixed.
次に、この第１実施例構造の製造方法を第３図の工程説
明図により説明する。Next, a method for manufacturing the structure of the first embodiment will be explained with reference to process diagrams shown in FIG.
まず、ヘミング部ｌを形成するインナパネル２の端縁部
２０に予めプレス加工によりインナ倒曲エンボス２１を
成形する（第３図（イ））。First, an inner bent embossing 21 is formed in advance by press working on the end edge 20 of the inner panel 2 that forms the hemming portion 1 (FIG. 3(A)).
次に、プレス台５の上にアウタパネル３とインナパネル
２とをセットして、アウタパネル３の端縁部３０をある
程度まで折り返すブレヘム加工を施すもので、これに先
立って１両端縁２０゜３０間に接着剤４を予め塗布して
おく（第３図（ロ））。Next, the outer panel 3 and the inner panel 2 are set on the press table 5, and the edge part 30 of the outer panel 3 is folded to a certain extent to perform a hem process. Adhesive 4 is applied in advance to (Fig. 3 (b)).
次に、メインバンチ６によりアウタパネル３の端縁部３
０を完全に折り返す完全ヘム加工を施こす。Next, the end edge 3 of the outer panel 3 is removed by the main bunch 6.
Completely hemmed by completely folding back the 0.
このとき、メインパンチ６の成形面６０には前記インナ
倒曲エンボス２１に一致する位置に逃げ穴６１が形成さ
れているため、この完全ヘム加工時に、アウタパネル３
の端縁部には逃げ穴６１によってインナ倒曲エンボス２
■に合致するアウタ倒曲エンボス３１が形成され、同時
にアウタ倒曲エンボス３１の裏面がインナ倒曲エンボス
２１の表面に嵌着されて、いわゆるカシメ構造が形成さ
れる（第３図（ハ））。At this time, since an escape hole 61 is formed in the forming surface 60 of the main punch 6 at a position that corresponds to the inner bent embossing 21, the outer panel 3
The inner bent emboss 2 is formed by a relief hole 61 on the edge of the
An outer bent emboss 31 matching (2) is formed, and at the same time, the back side of the outer bent emboss 31 is fitted onto the surface of the inner bent emboss 21, forming a so-called crimped structure (FIG. 3 (c)). .
このようにして両エンボス２１．３１によりヘミング部
ｌの固定保持が成され、この固定保持状態でエンジンフ
ードＨは、塗装工程等を経たのち塗装のオーブンで加熱
され、ここで接着剤４が硬化し、完全にヘミング部ｌで
接合される。In this way, the hemming part l is fixedly held by both embossings 21 and 31, and in this fixedly held state, the engine hood H is heated in a painting oven after going through a painting process, etc., where the adhesive 4 is hardened. and is completely joined at the hemming part l.
従って１本実施例では、インナパネル２の端縁部２０に
形成されたインナ倒曲エンボス２１の表面に、アウタパ
ネル３の端縁部３０に形成されたアウタ倒曲エンボス３
１の裏面が嵌着された、いわゆるカシメ構造により、接
着剤４が硬化されるまでのヘミング部ｌの固定保持が成
される。Therefore, in this embodiment, the outer bent emboss 3 formed on the edge 30 of the outer panel 3 is formed on the surface of the inner bent emboss 21 formed on the edge 20 of the inner panel 2.
The hemming portion 1 is held fixed until the adhesive 4 is cured by the so-called caulking structure in which the back surface of the hemming portion 1 is fitted.
このように、ヘミング部ｌの固定保持に、溶接加工が施
されていないので、熱歪の発生がないし、溶接部の表面
仕上げ作業といった手間が省ける。In this way, since welding is not performed to fix and hold the hemming portion l, thermal distortion does not occur, and the effort of surface finishing work of the welded portion can be saved.
第４図は、本発明第２実施例のヘミング部構造を示す。FIG. 4 shows the hemming part structure of the second embodiment of the present invention.
この第２実施例は、両エンボスの形状を第１実施例と異
ならせた例である。This second embodiment is an example in which the shapes of both embossings are different from those of the first embodiment.
即ち、インナ側エンボス２２とアウタ側エンボス３２は
、楕円形に形成されている。That is, the inner side embossing 22 and the outer side embossing 32 are formed in an oval shape.
（発明の効果）
以上説明してきたように、本発明によれば、接着剤が硬
化するまでのヘミング部の固定保持を。(Effects of the Invention) As described above, according to the present invention, the hemming portion can be fixed and held until the adhesive hardens.
インナ側・アウタ側両エンボス同士を嵌着したカシメ構
造より行うようにし、溶接加工を施さないようにしたた
め、熱歪によるパネルの変形を防止できるし、また、溶
接部の表面仕上げ作業が不要となり、作業性が向上する
という効果かが得られる。This is done using a caulking structure in which the embossments on both the inner and outer sides are fitted together, and no welding is required.This prevents panel deformation due to thermal distortion, and also eliminates the need for surface finishing work on the welded parts. , the effect of improving workability can be obtained.
また１本発明の製造方法では、完全ヘム加工時に、アウ
タ倒曲エンボスを成形しながら、インナ倒曲エンボスに
嵌合させるので、成形作業と嵌着作業が同時工程で行な
え、作業性が向上するし、しかも、両エンボスの位置合
せが必要ないため、それによっても作業性が良いという
効果が得られる。In addition, in the manufacturing method of the present invention, during complete hem processing, the outer bent emboss is formed and fitted to the inner bent emboss, so the forming work and the fitting work can be performed at the same time, improving work efficiency. Moreover, since it is not necessary to align both embossments, the effect of improving workability can also be obtained.
第１図は本発明第１実施例のヘミング部構造を示す断面
図、第２図は第１実施例構造を示す平面図、第３図は本
発明第１実施例構造の製造方法を示す工程説明図、第４
図は本発明第２実施例構造を示す平面図、第５図及び第
６図は従来技術の説明図である。
ｌ・・・ヘミング部
２・・・インナパネル
３・・・アウタパネル
４・・・接着剤
２０・・・端縁部
２１・・・インナ倒曲エンボス
２２・・・インナ倒曲エンボス
３０・・・端縁部
３１・・−アウタ倒曲エンボス
３２−・・アウタ倒曲エンボスFig. 1 is a sectional view showing the hemming part structure of the first embodiment of the present invention, Fig. 2 is a plan view showing the structure of the first embodiment, and Fig. 3 is a process showing the manufacturing method of the structure of the first embodiment of the present invention. Explanatory diagram, 4th
The figure is a plan view showing the structure of the second embodiment of the present invention, and FIGS. 5 and 6 are explanatory diagrams of the prior art. l... Hemming portion 2... Inner panel 3... Outer panel 4... Adhesive 20... Edge portion 21... Inner bent embossing 22... Inner bent embossing 30... Edge portion 31...-Outer folded emboss 32-...Outer folded emboss
Claims (1)
ルの端縁部が折り返され、かつ、両パネルの端縁部が接
着剤により接着された自動車用外板のヘミング部構造に
おいて、 前記ヘミング部を形成するインナパネルの端縁部にイン
ナ側凸エンボスが形成され、 前記ヘミング部を形成するアウタパネルの端縁部に、前
記インナ側凸エンボスに合致するアウタ側凸エンボスが
形成され、 前記インナ側凸エンボスの表面にアウタ側凸エンボスの
裏面が嵌着されていることを特徴とする自動車用外板の
ヘミング部構造。 ２）ヘミング部を形成するインナパネルの端縁部に予め
インナ側凸エンボスを形成し、 次に、ヘミング部を形成するインナパネル及びアウタパ
ネルの端縁部の少なくとも一方に接着剤を塗布し、 その後、インナパネルの端縁部を包み込むようにアウタ
パネルの端縁部を完全に折り返す完全ヘム加工時に、前
記インナ側凸エンボスに合致するアウタ側凸エンボスを
形成しながら、インナ側凸エンボスの表面にアウタ側凸
エンボスの裏面を嵌着させ、 その後、接着剤を硬化させることを特徴とした自動車用
外板のヘミング部製造方法。[Claims] 1) A hemming part structure for an automobile outer panel in which the edge of the outer panel is folded back to wrap around the edge of the inner panel, and the edges of both panels are bonded with an adhesive. An inner side convex emboss is formed on the edge of the inner panel forming the hemming part, and an outer side convex emboss that matches the inner side convex emboss is formed on the edge of the outer panel forming the hemming part. A hemming structure for an automobile outer panel, characterized in that a back surface of the outer convex emboss is fitted onto a surface of the inner convex emboss. 2) Form an inner side convex embossing in advance on the edge of the inner panel that forms the hemming part, then apply adhesive to at least one of the edge parts of the inner panel and the outer panel that form the hemming part, and then , when processing the complete hem by completely folding the edge of the outer panel so as to wrap around the edge of the inner panel, while forming a convex emboss on the outer side that matches the convex emboss on the inner side, the outer convex emboss is formed on the surface of the convex emboss on the inner side. A method for manufacturing a hemming part of an automobile outer panel, characterized by fitting the back side of a side convex embossing and then curing an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63224256A JPH0275420A (en) | 1988-09-07 | 1988-09-07 | Constitution and manufacture of hemming section for automobile outer panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63224256A JPH0275420A (en) | 1988-09-07 | 1988-09-07 | Constitution and manufacture of hemming section for automobile outer panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0275420A true JPH0275420A (en) | 1990-03-15 |
Family
ID=16810930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63224256A Pending JPH0275420A (en) | 1988-09-07 | 1988-09-07 | Constitution and manufacture of hemming section for automobile outer panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0275420A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07214197A (en) * | 1994-01-26 | 1995-08-15 | Hideta Eng:Kk | Method and device for calking side seaming part |
| KR100364250B1 (en) * | 2000-07-11 | 2002-12-11 | 주식회사 에이티티알앤디 | Adhensive method of inner panel and outer panel for automobile |
| KR100422635B1 (en) * | 2001-06-12 | 2004-03-12 | 현대자동차주식회사 | Combining device for door panel |
| KR100471846B1 (en) * | 2002-06-28 | 2005-03-08 | 현대자동차주식회사 | jig for manufacturing tail gate of vehicles |
| JP4536974B2 (en) * | 1999-06-09 | 2010-09-01 | 三洋機工株式会社 | Hemming structure of metal plate |
| US8087720B2 (en) | 2008-09-23 | 2012-01-03 | GM Global Technology Operations LLC | Vehicle closure panel assembly and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828737B2 (en) * | 1977-04-05 | 1983-06-17 | 三菱電機株式会社 | semiconductor equipment |
-
1988
- 1988-09-07 JP JP63224256A patent/JPH0275420A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828737B2 (en) * | 1977-04-05 | 1983-06-17 | 三菱電機株式会社 | semiconductor equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07214197A (en) * | 1994-01-26 | 1995-08-15 | Hideta Eng:Kk | Method and device for calking side seaming part |
| JP4536974B2 (en) * | 1999-06-09 | 2010-09-01 | 三洋機工株式会社 | Hemming structure of metal plate |
| KR100364250B1 (en) * | 2000-07-11 | 2002-12-11 | 주식회사 에이티티알앤디 | Adhensive method of inner panel and outer panel for automobile |
| KR100422635B1 (en) * | 2001-06-12 | 2004-03-12 | 현대자동차주식회사 | Combining device for door panel |
| KR100471846B1 (en) * | 2002-06-28 | 2005-03-08 | 현대자동차주식회사 | jig for manufacturing tail gate of vehicles |
| US8087720B2 (en) | 2008-09-23 | 2012-01-03 | GM Global Technology Operations LLC | Vehicle closure panel assembly and method |
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