JPH07178585A - Welding structure of pipe stock and welding method therefor - Google Patents
Welding structure of pipe stock and welding method thereforInfo
- Publication number
- JPH07178585A JPH07178585A JP29323194A JP29323194A JPH07178585A JP H07178585 A JPH07178585 A JP H07178585A JP 29323194 A JP29323194 A JP 29323194A JP 29323194 A JP29323194 A JP 29323194A JP H07178585 A JPH07178585 A JP H07178585A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- pipe material
- welding
- pipe
- small diameter
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、パイプ材の溶接構造お
よびその溶接方法に係わり、特に、板材の貫通孔にパイ
プ材を嵌挿した状態で、パイプ材の先端部を板材に溶接
するためのパイプ材の溶接に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welded structure of a pipe material and a welding method thereof, and in particular, for welding the tip end portion of the pipe material to the plate material while the pipe material is inserted into the through hole of the plate material. Related to welding of pipe materials.
【０００２】[0002]
【従来の技術】一般に、自動車のエンジンには、エンジ
ンからの排気ガスを導出するため、例えば、実開昭６４
−１３２２２号公報に開示されるような排気マニホール
ドが配置されている。そして、近時、このような排気マ
ニホールドでは、排気マニホールドを構成する排気管を
パイプ材により構成したパイプマニホールドが開発され
ている。2. Description of the Related Art Generally, in order to derive exhaust gas from an engine of a vehicle, for example
An exhaust manifold as disclosed in Japanese Patent No. 13222 is arranged. In recent years, for such an exhaust manifold, a pipe manifold has been developed in which an exhaust pipe forming the exhaust manifold is made of a pipe material.
【０００３】従来、このようなパイプマニホールドで
は、パイプ材のマニホールド本体への固定は、図４に示
すように、マニホールド本体を形成する板材１１に形成
される貫通孔１３にパイプ材を嵌挿した後、パイプ材１
５の挿入側から、パイプ材１５の外周と板材１１とを溶
接し、溶接ビード１７を形成することにより行わてい
る。しかしながら、このようなパイプマニホールドで
は、一般に、パイプ材１５が複雑に折曲しているため、
板材１１へのパイプ材１５の挿入側に溶接トーチを位置
させることが困難な事態が生じている。Conventionally, in such a pipe manifold, the pipe material is fixed to the manifold body by inserting the pipe material into a through hole 13 formed in a plate material 11 forming the manifold body, as shown in FIG. After that, pipe material 1
From the insertion side of 5, the outer periphery of the pipe material 15 and the plate material 11 are welded to form the weld beads 17. However, in such a pipe manifold, since the pipe material 15 is generally bent in a complicated manner,
It is difficult to position the welding torch on the insertion side of the pipe material 15 into the plate material 11.
【０００４】そこで、図５に示すように、板材１１の貫
通孔１３にパイプ材１５を嵌挿した後、このパイプ材１
５の先端部を、パイプ材１５の挿入方向と反対側から板
材１１に溶接し、形成された溶接ビード１９をフライス
加工により平面切削することが考えられている。Therefore, as shown in FIG. 5, after the pipe material 15 is inserted into the through hole 13 of the plate material 11, the pipe material 1 is inserted.
It is considered that the tip end of 5 is welded to the plate material 11 from the side opposite to the insertion direction of the pipe material 15 and the formed weld bead 19 is subjected to plane cutting by milling.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな方法による場合には、図６に示すように、溶接ビー
ド１９がパイプ材１５の外周に進入する角度θが非常に
大きくなり、貫通孔１３とパイプ材１５との間に形成さ
れる微小な間隙Ｗとの関係もあり、この部分Ａに応力が
集中し、疲労により、この部分Ａからパイプ材１５が破
断する虞がある。However, in the case of such a method, as shown in FIG. 6, the angle θ at which the welding bead 19 enters the outer periphery of the pipe material 15 becomes very large, and the through hole 13 is formed. There is also a relation between the minute gap W formed between the pipe material 15 and the pipe material 15, and stress concentrates on this portion A, and the pipe material 15 may be broken from this portion A due to fatigue.
【０００６】本発明は、かかる従来の問題を解決するた
めになされたもので、パイプ材の板材への溶接強度を従
来より大幅に向上することのできるパイプ材の溶接構造
およびその溶接方法を提供することを目的とする。The present invention has been made to solve the conventional problems, and provides a welded structure of a pipe material and a welding method thereof capable of significantly improving the welding strength of the pipe material to the plate material. The purpose is to do.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明は、板材
の一面側から板材に形成される貫通孔にパイプ材を嵌挿
し、このパイプ材の先端部を板材の他面側から溶接し、
パイプ材の先端部と貫通孔近傍の板材に溶接ビードを形
成して成るパイプ材の溶接構造において、貫通孔は、板
材の一面側に形成される小径部と、他面側に形成される
大径部と、小径部と大径部とを接続するテーパ面とから
成り、パイプ材は、その先端部を板材の一面側から貫通
孔の小径部を介してテーパ面まで嵌挿されており、溶接
ビードは、貫通孔のテーパ面から板材の一面側の貫通孔
開口端近傍部分を含んで形成されているものである。According to a first aspect of the present invention, a pipe material is fitted into a through hole formed in the plate material from one surface side of the plate material, and a tip end portion of the pipe material is welded from the other surface side of the plate material. ,
In a welded structure of a pipe material formed by forming a weld bead on the tip portion of the pipe material and the plate material near the through hole, the through hole has a small diameter portion formed on one surface side of the plate material and a large diameter portion formed on the other surface side. It consists of a diameter part and a taper surface connecting the small diameter part and the large diameter part, and the pipe material is inserted from the one surface side of the plate material to the taper surface through the small diameter part of the through hole. The weld bead is formed to include a portion near the opening end of the through hole on the one surface side of the plate material from the tapered surface of the through hole.
【０００８】請求項２の発明は、貫通孔の小径部の内径
は、パイプ材の外径より僅かに大径であるものである。
請求項３の発明は、一面側に小径部を有し、他面側に大
径部を有し、かつ小径部と大径部とをテーパ面で接続し
て成る貫通孔を穿設して成る板材と、パイプ材とを溶接
するに当たり、パイプ材を、板材の一面側に形成される
貫通孔の小径部からこれに接続するテーパ面の位置まで
嵌挿し、次に、貫通孔の他面側に形成されるテーパ面に
接続する大径部側から、電極を挿入し、パイプ材の先端
部を溶接し、貫通孔のテーパ面から板材の一面側の貫通
孔開口端近傍部分を含む領域に溶接ビードを形成するも
のである。According to the second aspect of the invention, the inner diameter of the small diameter portion of the through hole is slightly larger than the outer diameter of the pipe material.
According to the invention of claim 3, a small diameter portion is provided on one surface side, a large diameter portion is provided on the other surface side, and a through hole is formed by connecting the small diameter portion and the large diameter portion with a tapered surface. In welding the plate material and the pipe material, the pipe material is inserted from the small diameter portion of the through hole formed on the one surface side of the plate material to the position of the tapered surface connected to the through hole, and then the other surface of the through hole. A region including the portion near the open end of the through hole on the one surface side of the plate material from the tapered surface of the through hole by inserting the electrode from the large diameter side connected to the tapered surface formed on the side and welding the tip of the pipe material. To form a weld bead.
【０００９】[0009]
【作用】請求項１乃至３においては、まず、一面側に小
径部を有し、他面側に大径部を有し、かつ小径部と大径
部とをテーパ面で接続して成る貫通孔を穿設して成る板
材と、この板材の貫通孔に嵌挿して溶接されるパイプ材
とを用意する。つぎに、パイプ材を、板材の一面側に形
成される貫通孔の小径部からこれに接続するテーパ面の
位置まで嵌挿し、ついで、貫通孔の他面側に形成される
テーパ面に接続する大径部側から、電極を挿入し、パイ
プ材の先端部を溶接し、貫通孔のテーパ面から板材の一
面側の貫通孔開口端近傍部分を含む領域に溶接ビードを
形成することができる。According to the first to third aspects of the invention, first, the through hole is formed by having a small diameter portion on one surface side and a large diameter portion on the other surface side, and connecting the small diameter portion and the large diameter portion with a tapered surface. A plate member having holes formed therein and a pipe member which is fitted into a through hole of the plate member and welded are prepared. Next, the pipe material is fitted and inserted from the small diameter portion of the through hole formed on one surface side of the plate material to the position of the tapered surface connected to this, and then connected to the tapered surface formed on the other surface side of the through hole. It is possible to insert an electrode from the large diameter portion side, weld the tip end portion of the pipe material, and form a weld bead in a region including the tapered surface of the through hole and a portion near the open end of the through hole on the one surface side of the plate material.
【００１０】[0010]
【実施例】以下、本発明の詳細を図面に示す一実施例に
ついて説明する。図１は、請求項１および２のパイプ材
の溶接構造の一実施例を示しており、図において符号２
１は、例えば、マニホールド本体を形成する金属製の板
材を示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of a welded structure of pipe materials according to claims 1 and 2, and in the figure, reference numeral 2
Reference numeral 1 denotes, for example, a metal plate member that forms the manifold body.
【００１１】この板材２１には、図２に示すように、貫
通孔２３が形成されている。この貫通孔２３は、板材２
１の一面２５側に形成される小径部２７と、他面２９側
に形成される大径部３１とからなり、小径部２７と大径
部３１とは、テーパ面３３により接続されている。小径
部２７には、パイプ材３５の先端部３７が嵌挿され、こ
のパイプ材３５の先端部３７が板材２１の他面２９側か
ら溶接されている。Through holes 23 are formed in the plate member 21 as shown in FIG. This through hole 23 is used for the plate member 2
1 is composed of a small diameter portion 27 formed on the one surface 25 side and a large diameter portion 31 formed on the other surface 29 side, and the small diameter portion 27 and the large diameter portion 31 are connected by a tapered surface 33. The tip portion 37 of the pipe material 35 is fitted into the small diameter portion 27, and the tip portion 37 of the pipe material 35 is welded from the other surface 29 side of the plate material 21.
【００１２】また、貫通孔２３の小径部２７の内径は、
図２に示すように、パイプ材３５の外径よりも僅かに大
きくしてある。そして、この溶接により、溶接ビード３
９が、図３に示すように、板材２１の一面２５側の貫通
孔開口端近傍部分４１を含んで形成されている。以上の
ように構成されたパイプ材の溶接構造は、図２に示した
ように、板材２１の小径部２７に、パイプ材３５を、先
端面４３が大径部３１の端部に位置するまで嵌挿した
後、板材２１の大径部３１側から、電極を挿入し、パイ
プ材３５の先端部３７を溶接し、貫通孔２３のテーパ面
３３から板材２１の一面２５側の貫通孔開口端近傍部分
４１を含む領域に溶接ビード３９をすることにより形成
される（請求項３）。The inner diameter of the small diameter portion 27 of the through hole 23 is
As shown in FIG. 2, it is slightly larger than the outer diameter of the pipe member 35. Then, by this welding, the welding bead 3
9, the plate member 21 is formed to include a portion 41 near the opening end of the through hole on the one surface 25 side of the plate member 21. As shown in FIG. 2, the welded structure of the pipe member configured as described above is arranged such that the pipe member 35 is placed on the small diameter portion 27 of the plate member 21 until the tip surface 43 is located at the end of the large diameter portion 31. After the insertion, the electrode is inserted from the large-diameter portion 31 side of the plate material 21, the tip portion 37 of the pipe material 35 is welded, and the through hole opening end from the tapered surface 33 of the through hole 23 to the one surface 25 side of the plate material 21. It is formed by forming a weld bead 39 on a region including the vicinity portion 41 (claim 3).
【００１３】しかして、以上のように構成されたパイプ
材の溶接構造では、パイプ材３５の先端部３７のみを貫
通孔２３に嵌挿するとともに、溶接ビード３９を、板材
２１の一面２５側、すなわち、パイプ材３５の挿入側と
なる面の貫通孔開口端近傍部分４１を含んで形成したの
で、図３に示したように、溶接ビード３９がパイプ材３
５の外周に進入する角度θが従来より大幅に小さくな
り、また、溶接ビード３９は、小径部２７とパイプ材３
５とともに溶けあって形成されており、小径部２７とパ
イプ材３５との間隙が溶接ビード３９により完全に無く
なるため、パイプ材３５の板材２１への溶接強度を従来
より大幅に向上することが可能となる。Therefore, in the welded structure of the pipe material constructed as described above, only the tip portion 37 of the pipe material 35 is fitted into the through hole 23, and the weld bead 39 is provided on the one surface 25 side of the plate material 21, That is, since the pipe member 35 is formed to include the portion 41 near the opening end of the through hole of the surface on the insertion side of the pipe member 35, the welding bead 39 is formed on the pipe member 3 as shown in FIG.
The angle .theta. Entering the outer periphery of 5 is significantly smaller than that of the conventional one, and the welding bead 39 has the small diameter portion 27 and the pipe member
Since the weld bead 39 completely eliminates the gap between the small diameter portion 27 and the pipe material 35, it is possible to significantly improve the welding strength of the pipe material 35 to the plate material 21 compared with the prior art. Becomes
【００１４】なお、以上述べた実施例では、パイプマニ
ホールドに本発明を適用した例について述べたが、本発
明は、かかる実施例に限定されるものではなく、各種の
パイプ材の溶接構造に広く適用できることは勿論であ
る。In the above-described embodiments, examples in which the present invention is applied to a pipe manifold have been described. However, the present invention is not limited to such embodiments, and is widely applied to welded structures of various pipe materials. Of course, it can be applied.
【００１５】[0015]
【発明の効果】以上述べたように、請求項１乃至３によ
れば、溶接ビードがパイプ材の外周に進入する角度を従
来より大幅に小さくすることができ、かつ小径部とパイ
プ材との間隙が溶接ビードにより完全になくなる結果、
パイプ材の板材への溶接強度を従来より大幅に向上する
ことができるという利点がある。As described above, according to claims 1 to 3, the angle at which the welding bead enters the outer circumference of the pipe material can be made significantly smaller than before, and the small diameter portion and the pipe material are As a result of the weld bead completely eliminating the gap,
There is an advantage that the welding strength of the pipe material to the plate material can be significantly improved as compared with the conventional one.
【図１】請求項１および２のパイプ材の溶接構造の一実
施例を示す縦断面図である。FIG. 1 is a vertical cross-sectional view showing an example of a welded structure of pipe materials according to claims 1 and 2.
【図２】図１のパイプ材の溶接構造の溶接前の状態を示
す縦断面図である。FIG. 2 is a vertical cross-sectional view showing a state before welding of the welded structure of the pipe material of FIG.
【図３】図１の溶接ビードの詳細を示す説明図である。FIG. 3 is an explanatory view showing details of a welding bead in FIG. 1.
【図４】従来のマニホールド本体へのパイプ材の溶接方
法を示す説明図である。FIG. 4 is an explanatory diagram showing a conventional method for welding a pipe material to a manifold body.
【図５】従来のマニホールド本体へのパイプ材の溶接方
法を示す説明図である。FIG. 5 is an explanatory diagram showing a conventional method for welding a pipe material to a manifold body.
【図６】従来のマニホールド本体へのパイプ材の溶接方
法を示す説明図である。FIG. 6 is an explanatory diagram showing a conventional method for welding a pipe material to a manifold body.
２１ 板材 ２３ 貫通孔 ２５ 一面 ２９ 他面 ３５ パイプ材 ３７ 先端部 ３９ 溶接ビード ４１ 貫通孔開口端近傍部分 21 plate material 23 through hole 25 one surface 29 other surface 35 pipe material 37 tip portion 39 weld bead 41 through hole opening end vicinity portion
Claims (3)
（２１）に形成される貫通孔（２３）にパイプ材（３
５）を嵌挿し、このパイプ材（３５）の先端部（３７）
を板材（２１）の他面（２９）側から溶接し、パイプ材
（３５）の先端部（３７）と貫通孔（２３）近傍の板材
（２１）に溶接ビード（３９）を形成して成るパイプ材
の溶接構造において、 貫通孔（２３）は、板材（２１）の一面（２５）側に形
成される小径部（２７）と、他面（２９）側に形成され
る大径部（３１）と、小径部（２７）と大径部（３１）
とを接続するテーパ面（３３）とから成り、 パイプ材（３５）は、その先端部（３７）を板材（２
１）の一面（２５）側から貫通孔（２３）の小径部（２
７）を介してテーパ面（３３）まで嵌挿されており、 溶接ビード（３９）は、貫通孔（２３）のテーパ面（３
３）から板材（２１）の一面（２５）側の貫通孔開口端
近傍部分（４１）を含んで形成されていることを特徴と
するパイプ材の溶接構造。1. A pipe material (3) is inserted into a through hole (23) formed in the plate material (21) from one surface (25) side of the plate material (21).
5) is inserted and the tip portion (37) of this pipe material (35) is inserted.
Is welded from the other surface (29) side of the plate material (21), and weld beads (39) are formed on the tip end part (37) of the pipe material (35) and the plate material (21) near the through hole (23). In the welded structure of the pipe material, the through hole (23) includes a small diameter portion (27) formed on the one surface (25) side of the plate material (21) and a large diameter portion (31) formed on the other surface (29) side. ), A small diameter part (27) and a large diameter part (31)
And a taper surface (33) connecting the pipe material (35) to the plate material (2).
1) The small diameter portion (2) of the through hole (23) from the one surface (25) side.
7) is inserted into the tapered surface (33) through the welding bead (39) and the tapered surface (3) of the through hole (23).
3) A welded structure of a pipe material, characterized in that it is formed from the plate material (21) including a portion (41) near the open end of the through hole on the one surface (25) side.
は、パイプ材（３５）の外径より僅かに大径であること
を特徴とする請求項１記載のパイプ材の溶接構造。2. The welded structure for pipe material according to claim 1, wherein the inner diameter of the small diameter portion (27) of the through hole (23) is slightly larger than the outer diameter of the pipe material (35). .
し、他面（２９）側に大径部（３１）を有し、かつ小径
部（２７）と大径部（３１）とをテーパ面（３３）で接
続して成る貫通孔（２３）を穿設して成る板材（２１）
と、パイプ材（３５）とを溶接するに当たり、 パイプ材（３５）を、板材（２１）の一面（２５）側に
形成される貫通孔（２３）の小径部（２７）からこれに
接続するテーパ面（３３）の位置まで嵌挿し、 次に、貫通孔（２３）の他面（２９）側に形成されるテ
ーパ面（３３）に接続する大径部（３１）側から、電極
を挿入し、パイプ材（３５）の先端部（３７）を溶接
し、貫通孔（２３）のテーパ面（３３）から板材（２
１）の一面（２５）側の貫通孔開口端近傍部分（４１）
を含む領域に溶接ビード（３９）を形成することを特徴
とするパイプ材の溶接方法。3. A small diameter portion (27) on one surface (25) side, a large diameter portion (31) on the other surface (29) side, and a small diameter portion (27) and a large diameter portion (31). A plate material (21) formed by forming a through hole (23) formed by connecting and with a tapered surface (33).
In welding the pipe material (35) and the pipe material (35), the pipe material (35) is connected to the small diameter portion (27) of the through hole (23) formed on the one surface (25) side of the plate material (21). The electrode is inserted from the large diameter portion (31) side connected to the tapered surface (33) formed on the other surface (29) side of the through hole (23) by fitting and inserting to the position of the tapered surface (33). Then, the tip portion (37) of the pipe material (35) is welded to the plate material (2) from the tapered surface (33) of the through hole (23).
1) A portion (41) near the opening end of the through hole on the one surface (25) side
A welding method for pipe material, characterized in that a weld bead (39) is formed in a region including the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6293231A JP2612427B2 (en) | 1994-11-28 | 1994-11-28 | Welded structure of plate and pipe of exhaust manifold and method of manufacturing exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6293231A JP2612427B2 (en) | 1994-11-28 | 1994-11-28 | Welded structure of plate and pipe of exhaust manifold and method of manufacturing exhaust manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07178585A true JPH07178585A (en) | 1995-07-18 |
| JP2612427B2 JP2612427B2 (en) | 1997-05-21 |
Family
ID=17792131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6293231A Expired - Fee Related JP2612427B2 (en) | 1994-11-28 | 1994-11-28 | Welded structure of plate and pipe of exhaust manifold and method of manufacturing exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2612427B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005329466A (en) * | 2004-05-18 | 2005-12-02 | Snecma Moteurs | Tig welding method |
| JP2008528294A (en) * | 2005-01-27 | 2008-07-31 | サミック プレシジョン インダストリー カンパニー リミテッド | Manufacturing method of linear motion machine part and linear bushing manufactured by the method |
| CN103111769A (en) * | 2013-03-04 | 2013-05-22 | 长沙理工大学 | Novel process method for reducing welding deformation of oil inlet and outlet of hydraulic oil cylinder |
| CN105382436A (en) * | 2015-12-24 | 2016-03-09 | 上海酷风汽车部件有限公司 | Automotive air conditioner pipe section welding method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944951A (en) * | 1982-09-03 | 1984-03-13 | Hitachi Ltd | Monitoring device for contacting state of current collector brush in rotary electric machine |
| JPS6311120A (en) * | 1986-07-02 | 1988-01-18 | 松下電器産業株式会社 | Coffee brewer |
| JPS63154888U (en) * | 1987-03-30 | 1988-10-12 |
-
1994
- 1994-11-28 JP JP6293231A patent/JP2612427B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944951A (en) * | 1982-09-03 | 1984-03-13 | Hitachi Ltd | Monitoring device for contacting state of current collector brush in rotary electric machine |
| JPS6311120A (en) * | 1986-07-02 | 1988-01-18 | 松下電器産業株式会社 | Coffee brewer |
| JPS63154888U (en) * | 1987-03-30 | 1988-10-12 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005329466A (en) * | 2004-05-18 | 2005-12-02 | Snecma Moteurs | Tig welding method |
| JP2008528294A (en) * | 2005-01-27 | 2008-07-31 | サミック プレシジョン インダストリー カンパニー リミテッド | Manufacturing method of linear motion machine part and linear bushing manufactured by the method |
| CN103111769A (en) * | 2013-03-04 | 2013-05-22 | 长沙理工大学 | Novel process method for reducing welding deformation of oil inlet and outlet of hydraulic oil cylinder |
| CN105382436A (en) * | 2015-12-24 | 2016-03-09 | 上海酷风汽车部件有限公司 | Automotive air conditioner pipe section welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2612427B2 (en) | 1997-05-21 |
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