JP2541548Y2 - Insert welding flange - Google Patents
Insert welding flangeInfo
- Publication number
- JP2541548Y2 JP2541548Y2 JP818691U JP818691U JP2541548Y2 JP 2541548 Y2 JP2541548 Y2 JP 2541548Y2 JP 818691 U JP818691 U JP 818691U JP 818691 U JP818691 U JP 818691U JP 2541548 Y2 JP2541548 Y2 JP 2541548Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- fastening
- flange
- welding flange
- annular tongue
- 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
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この考案は管の締結部に設けられ
た差込溶接フランジに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bayonet welding flange provided at a pipe joint.
【０００２】[0002]
【従来の技術】従来、細径管の継手部位に締結用のフラ
ンジを設ける場合、管端部にフランジをろう付け等で溶
接した差込溶接フランジがある。2. Description of the Related Art Conventionally, when a fastening flange is provided at a joint portion of a small-diameter pipe, there is an insertion welding flange in which the flange is welded to the pipe end by brazing or the like.
【０００３】このような差込溶接フランジは、例えば図
６，７に示すように、管５１の管端部にプレス抜き加工
されたフランジ５２が外嵌され、炉中ろう付けにより溶
着されていた。なお、符号５３はろう付部を示す。As shown in FIGS. 6 and 7, for example, such a plug welding flange is formed by externally fitting a flange 52 which has been stamped to a pipe end of a pipe 51 and welded by brazing in a furnace. . Reference numeral 53 denotes a brazing portion.
【０００４】[0004]
【考案が解決しようとする課題】しかし、このような従
来の差込溶接フランジにおいては、炉中ろう付け前にフ
ランジを管に仮止めしてろう付けが行われる。例えばこ
のフランジを薄板で形成した場合、フランジの一部を塑
性変形加工して仮止めを容易に行えるが、炉中ろう付け
後にフランジに面歪が発生し、シール性が低下するとい
う問題があった。However, in such a conventional plug welding flange, the brazing is performed by temporarily fixing the flange to a pipe before brazing in a furnace. For example, when this flange is made of a thin plate, a part of the flange can be plastically deformed to facilitate temporary fixing, but there is a problem that surface distortion occurs in the flange after brazing in a furnace and the sealing performance is reduced. Was.
【０００５】また、厚板で形成した場合は、フランジの
塑性変形加工が困難なため、ＴＩＧ溶接等による点付け
（図７に符号５４で示す）を２〜３箇所行って仮止めさ
れていた。そのため、仮止め作業に手間がかかるという
問題があった。[0005] Further, when formed of a thick plate, it is difficult to plastically deform the flange, so that the flange is temporarily fixed by performing spotting by TIG welding or the like (indicated by reference numeral 54 in FIG. 7) at two or three places. . For this reason, there is a problem that the temporary fixing work takes time.
【０００６】この考案は上記問題を解決するためになさ
れたものであり、その目的とするところは面歪を防止す
るとともに仮止め作業を簡潔に行うことのできる差込溶
接フランジを提供しようとするものである。The present invention has been made to solve the above-mentioned problem, and an object thereof is to provide an insertion welding flange which can prevent surface distortion and can perform a temporary fixing operation simply. Things.
【０００７】[0007]
【課題を解決するための手段】この考案は上記目的を達
成するためになされたものであり、管の締結部に設けら
れた差込溶接フランジであつて、前記管に外嵌されその
管端部にもうけられた基板部と、前記管に外嵌され前記
基板部の内側面に重ね合わされて溶着された締着板部
と、からなり、前記締着板部は、斜め内方へ延びかつ先
端部に前記管の外周に締着可能な締着孔を有する環状舌
片を備え、前記環状舌片が塑性変形されて前記締着孔が
前記管の外周に締圧着されるとともに前記基板部および
前記締着板部が前記管に溶着されてなることを特徴とす
る差込溶接フランジである。SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and is a plug-in welding flange provided at a joint portion of a pipe. And a fastening plate portion which is fitted onto the tube and overlapped and welded to the inner surface of the substrate portion, wherein the fastening plate portion extends obliquely inward and An annular tongue having a fastening hole capable of being fastened to the outer periphery of the tube at a distal end portion, wherein the annular tongue is plastically deformed, and the fastening hole is tightened and crimped to the outer periphery of the tube; And the fastening plate portion is welded to the pipe.
【０００８】[0008]
【作用】この考案は上記のように構成されたものであ
り、締着板部の環状舌片が塑性変形されて、その締着孔
が管外周に締着される。これにより、差込溶接フランジ
が管に仮止めされ、その後、両者の間が溶着される。The present invention is constructed as described above. The annular tongue of the fastening plate is plastically deformed, and the fastening hole is fastened to the outer periphery of the pipe. As a result, the insertion welding flange is temporarily fixed to the pipe, and thereafter, welding is performed between the two.
【０００９】[0009]
【実施例】以下、この考案の一実施例を図１〜４に基づ
いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.
【００１０】図１はこの考案の実施例の差込溶接フラン
ジの断面図、図２は基板部の断面図、図３は締着板部の
断面図、図４は締着板部の背面図である。FIG. 1 is a sectional view of an insertion welding flange according to an embodiment of the present invention, FIG. 2 is a sectional view of a board portion, FIG. 3 is a sectional view of a fastening plate portion, and FIG. 4 is a rear view of the fastening plate portion. It is.
【００１１】図において１０は差込溶接フランジであ
り、差込溶接フランジ１０は、基板部１１と、締着板部
１５とからなり、締着板部１５は締着孔１７を有する環
状舌片１６を備えて構成されている。Referring to FIG. 1, reference numeral 10 denotes an insertion welding flange. The insertion welding flange 10 includes a substrate portion 11 and a fastening plate portion 15, and the fastening plate portion 15 has an annular tongue having a fastening hole 17. 16 is provided.
【００１２】基板部１１は、所定の板厚ｔ1 を有し、プ
レス抜き加工されて異形長円形に形成されている。基板
部１１の中央部には、管１に外嵌可能な嵌合孔１２が設
けられており、その両側に締付用孔１３が穿設されてい
る。The substrate portion 11 has a predetermined plate thickness t 1 and is formed into an irregularly shaped ellipse by press punching. A fitting hole 12 that can be fitted to the tube 1 is provided at the center of the substrate portion 11, and fastening holes 13 are provided on both sides of the fitting hole 12.
【００１３】締着板部１５は、所定の板厚ｔ2 を有し、
プレス抜き加工されて基板部１１と同じ異形長円形に形
成されている。締着板部１５の一面の中央部には、半起
し状に斜め方向内側に向け突出して延びる環状舌片１６
が設けられており、その中央には所定の直径の締着孔１
７が穿設されている。また、締着板部１５の他面には、
環状舌片１６の外周辺にプロジェクション溶接用の突起
１８が設けられており、更にその両側には締付用孔１９
が穿設されている。The fastening plate portion 15 has a predetermined plate thickness t 2 ,
It is formed into the same oblong shape as the substrate portion 11 by press punching. An annular tongue piece 16 protruding obliquely inward in a semi-raised shape is provided at the center of one surface of the fastening plate portion 15.
A fastening hole 1 having a predetermined diameter is provided at the center thereof.
7 are drilled. Also, on the other surface of the fastening plate portion 15,
A projection 18 for projection welding is provided on the outer periphery of the annular tongue 16, and a fastening hole 19 is provided on both sides thereof.
Are drilled.
【００１４】この基板部１１と締着板部１５とは、嵌合
孔１２と締着孔１７との軸心を同一にして、突起１８部
においてプロジェクション溶接されて一体化される。こ
の状態で差込溶接フランジ１０の板厚ｔは、従来の厚板
からなるフランジの板厚とほぼ同じに形成されており、
締付用孔１３，１９の軸線は同一となる。なお、基板部
１１の板厚ｔ1 は、板厚ｔの６０〜７０％程度が望し
く、締着板部１５の板厚ｔ2 は、板厚ｔの３０〜４０％
程度が望しい。The base plate 11 and the fastening plate 15 are integrated by projection welding at the projection 18 with the same axis of the fitting hole 12 and the fastening hole 17. In this state, the thickness t of the insertion welding flange 10 is formed to be substantially the same as the thickness of the flange made of a conventional thick plate.
The axes of the fastening holes 13, 19 are the same. The thickness t 1 of the substrate portion 11 is preferably about 60 to 70% of the thickness t, and the thickness t 2 of the fastening plate portion 15 is 30 to 40% of the thickness t.
Desirable degree.
【００１５】このように構成された差込溶接フランジ
は、まず、管１の管端部１ａに、環状舌片１６を管１の
内方へ向けて外嵌するとともに、差込溶接フランジ１０
および管端部１ａを支持する固定型５５にセットされ
る。The plug welding flange constructed as described above first fits an annular tongue 16 outwardly into the pipe 1 at the pipe end 1a of the pipe 1 and inserts the plug welding flange 10
And it is set to the fixed mold 55 which supports the pipe end 1a.
【００１６】そして、環状舌片１６を押し型５６により
プレス加工して、半起し状に斜め方向に突出した環状舌
片１６を塑性変形させて扁平化させる（図５参照）。こ
れにより締着孔１７は、管１外周にかしめ状に締着して
差込溶接フランジ１０が仮止めされる。Then, the annular tongue 16 is pressed by a pressing die 56, and the annular tongue 16 projecting obliquely in a semi-raised shape is plastically deformed and flattened (see FIG. 5). As a result, the fastening hole 17 is fastened to the outer periphery of the pipe 1 in a caulking manner, and the insertion welding flange 10 is temporarily fixed.
【００１７】続いて、管端部１ａに置きろうを施し炉中
ろう付けを行うことにより、差込溶接フランジ１０と管
端部１ａとの間、および基板部１１と締着板部１５との
間の隙間にろうが進入し、上記隙間にろう付部２０を形
成して差込溶接フランジ１０と管１とが溶着される。Subsequently, a brazing is performed on the tube end portion 1a and brazing is performed in a furnace, so that the gap between the insertion welding flange 10 and the tube end portion 1a and between the substrate portion 11 and the fastening plate portion 15 are formed. The brazing enters the gap between them, and the brazing portion 20 is formed in the gap to weld the insertion welding flange 10 and the pipe 1 together.
【００１８】なお、この考案は上述の説明および図例に
限定されることなく、この考案の技術的思想から逸脱し
ない範囲において、その実施態様を変更することができ
る。例えば、基板部と締着板部の各々の板厚は、フラン
ジの材質および大きさ等を加味して設定されるものであ
り、特に実施例の範囲に限定されるものではない。It should be noted that the present invention is not limited to the above description and examples of the drawings, and the embodiments thereof can be changed without departing from the technical idea of the present invention. For example, the thickness of each of the substrate portion and the fastening plate portion is set in consideration of the material and size of the flange, and is not particularly limited to the scope of the embodiment.
【００１９】また締着孔は、その内周面にスプライン状
の凹凸をつけたものであってもよい。The fastening hole may have a spline-like unevenness formed on the inner peripheral surface thereof.
【００２０】[0020]
【考案の効果】この考案の差込溶接フランジは上記のよ
うな構成なので、塑性変形可能な環状舌片のプレス加工
により締着孔が管の外周に締着されるので、仮止め作業
を簡潔に行うことができる。[Effect of the Invention] The insertion welding flange of the present invention has the above-described configuration, and the fastening hole is fastened to the outer periphery of the pipe by pressing the plastically deformable annular tongue. Can be done.
【００２１】また、基板部と締着板部とを重ね合わせて
一体化しているので、炉中ろう付けによるフランジ面歪
を防止することができる。Further, since the substrate portion and the fastening plate portion are overlapped and integrated, it is possible to prevent flange surface distortion due to brazing in a furnace.
【００２２】更に、差込溶接フランジと管外周との間隙
を均一にできるとともに、管の中心線に対しフランジ接
面を容易に直角に保つことができる等の効果を奏する。Further, there can be obtained such effects that the gap between the insertion welding flange and the outer periphery of the pipe can be made uniform, and the flange contact surface can be easily kept perpendicular to the center line of the pipe.
【図１】本考案の差込溶接フランジの一実施例を示す断
面図。FIG. 1 is a cross-sectional view showing an embodiment of the insertion welding flange of the present invention.
【図２】同じく基板部の断面図。FIG. 2 is a cross-sectional view of the substrate part.
【図３】同じく締着板部の断面図。FIG. 3 is a sectional view of the fastening plate portion.
【図４】同じく締着板部の背面図。FIG. 4 is a rear view of the fastening plate.
【図５】同じく環状舌片の締着孔と管との締着を説明す
る断面図。FIG. 5 is a cross-sectional view for explaining the fastening between the fastening hole of the annular tongue and the tube.
【図６】従来の差込溶接フランジの斜視図。FIG. 6 is a perspective view of a conventional insertion welding flange.
【図７】同じく断面図。FIG. 7 is a sectional view of the same.
１ 管 １０ 差込溶接フランジ １１ 基板部 １５ 締着板部 １６ 環状舌片 １７ 締着孔 ２０ ろう付部 DESCRIPTION OF SYMBOLS 1 Pipe 10 Insert welding flange 11 Substrate part 15 Clamping plate part 16 Ring tongue piece 17 Clamping hole 20 Brazing part
Claims (1)
ジであつて、 前記管に外嵌されその管端部にもうけられた基板部と、 前記管に外嵌され前記基板部の内側面に重ね合わされて
溶着された締着板部と、からなり、 前記締着板部は、斜め内方へ延びかつ先端部に前記管の
外周に締着可能な締着孔を有する環状舌片を備え、 前記環状舌片が塑性変形されて前記締着孔が前記管の外
周に締着されるとともに前記基板部および前記締着板部
が前記管に溶着されてなることを特徴とする差込溶接フ
ランジ。1. A plug-in welding flange provided at a fastening portion of a pipe, wherein the board portion is externally fitted to the pipe and is provided at an end of the pipe, and the inside of the substrate portion is externally fitted to the pipe. An annular tongue piece extending obliquely inward and having, at its tip, a fastening hole capable of fastening to the outer periphery of the pipe. Wherein the annular tongue is plastically deformed, the fastening hole is fastened to the outer periphery of the tube, and the substrate portion and the fastening plate portion are welded to the tube. Weld flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP818691U JP2541548Y2 (en) | 1991-02-22 | 1991-02-22 | Insert welding flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP818691U JP2541548Y2 (en) | 1991-02-22 | 1991-02-22 | Insert welding flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0517292U JPH0517292U (en) | 1993-03-05 |
| JP2541548Y2 true JP2541548Y2 (en) | 1997-07-16 |
Family
ID=11686275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP818691U Expired - Lifetime JP2541548Y2 (en) | 1991-02-22 | 1991-02-22 | Insert welding flange |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2541548Y2 (en) |
-
1991
- 1991-02-22 JP JP818691U patent/JP2541548Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0517292U (en) | 1993-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970114 |
|
| EXPY | Cancellation because of completion of term |