JP2707957B2 - Method and apparatus for forming steel pipe for connection - Google Patents
Method and apparatus for forming steel pipe for connectionInfo
- Publication number
- JP2707957B2 JP2707957B2 JP5305459A JP30545993A JP2707957B2 JP 2707957 B2 JP2707957 B2 JP 2707957B2 JP 5305459 A JP5305459 A JP 5305459A JP 30545993 A JP30545993 A JP 30545993A JP 2707957 B2 JP2707957 B2 JP 2707957B2
- Authority
- JP
- Japan
- Prior art keywords
- fitting
- forming
- position display
- steel pipe
- guide groove
- 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 - Fee Related
Links
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼管の端部を互いに連
結可能なように成形するための連結用鋼管の成形方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a connecting steel pipe for forming ends of the steel pipe so as to be connectable to each other.
【０００２】[0002]
【従来の技術】従来の連結用鋼管としては、図４に示す
ものがある。この連結用鋼管1 は、その一端部にスエー
ジ加工により形成された小径の挿入部2 を有するもので
あり、挿入部2 を他の連結用鋼管1 の他端部、すなわち
被挿入部3 に圧入することによって、連結用鋼管1 は互
いに連結される。この連結用鋼管1 においては、互いを
容易に連結することができるが、連結強度が弱く、例え
ばビニールハウスのビニール巻き取り用に用いられて軸
回転方向の力を受けたりすると、連結部分が緩んで外れ
やすくなるという問題点があった。2. Description of the Related Art FIG. 4 shows a conventional connecting steel pipe. The connecting steel pipe 1 has a small-diameter insertion portion 2 formed at one end thereof by swaging, and the insertion portion 2 is press-fitted into the other end of the other connecting steel pipe 1, that is, the inserted portion 3. By doing so, the connecting steel pipes 1 are connected to each other. In this connecting steel pipe 1, the connecting parts can be easily connected to each other, but the connecting strength is weak. For example, when the connecting pipe is used for winding vinyl in a greenhouse and receives a force in the axial rotation direction, the connecting portion becomes loose. There was a problem that it was easy to come off.
【０００３】そこで、堅固に連結することができるよう
に、この連結用鋼管1 の挿入部2 に、図５に示すような
誘導溝4 及び嵌合凹部5 を設け、穂挿入部3 には内方に
突出して誘導溝4 に進入しかつ嵌合凹部5 に嵌合する嵌
合凸部6 を設け、挿入部2 の近傍には嵌合位置表示部7
及び嵌合解除位置表示部8 を設けてなるものが考えられ
る。[0005] Therefore, in order to be able to connect firmly, a guide groove 4 and a fitting concave portion 5 as shown in FIG. A fitting protrusion 6 is provided to protrude toward the guide groove 4 to enter the guiding groove 4 and to be fitted in the fitting recess 5, and a fitting position indicator 7 is provided near the insertion portion 2.
It is also conceivable to provide a fitting release position display section 8.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、連結用
鋼管1 の挿入部2 に誘導溝4 及び嵌合凹部5 を、被挿入
部3 に嵌合凸部6 を、挿入部2 の近傍に嵌合位置表示部
7 及び嵌合解除位置表示部8 を、それぞれ精度良く設け
るためには、誘導溝4 を絞り加工によって形成する工程
と、嵌合凹部5 をダボ出し加工により成形する工程と、
嵌合凸部6 をダボ出し加工により成形する工程と、嵌合
位置表示部7 及び嵌合解除位置表示部8 をダボ出し加工
により成形する工程とが必要になり、製造工程が複雑に
なって製造効率が悪くなってしまうという問題点があっ
た。However, the guide groove 4 and the fitting concave portion 5 are fitted in the inserting portion 2 of the connecting steel pipe 1, the fitting convex portion 6 is fitted in the inserted portion 3, and the fitting portion 6 is fitted in the vicinity of the inserting portion 2. Position display
In order to provide the 7 and the disengagement position display section 8 with high accuracy, respectively, a step of forming the guide groove 4 by drawing, and a step of forming the fitting recess 5 by doweling,
A step of forming the fitting projection 6 by doweling and a step of forming the fitting position display part 7 and the mating release position display part 8 by doweling are required, which complicates the manufacturing process. There is a problem that the manufacturing efficiency is deteriorated.
【０００５】本発明は、かかる事由に鑑みてなしたもの
で、その目的とするところは、堅固に連結することが可
能な構成を有する連結用鋼管を効率良く製造することが
できる連結用鋼管の成形方法を提供するにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connecting steel pipe capable of efficiently manufacturing a connecting steel pipe having a structure capable of firmly connecting. It is to provide a molding method.
【０００６】[0006]
【課題を解決するための手段】かかる課題を解決するた
めに、請求項１記載の連結用鋼管の成形方法は、スエー
ジ加工された一端部には誘導溝及び嵌合凹部を有し、他
端部には内方に突出して誘導溝に進入しかつ嵌合凹部に
嵌合する嵌合凸部を有し、一端部近傍には嵌合位置表示
部及び嵌合解除位置表示部を有する連結用鋼管を成形す
る方法であって、誘導溝を形成するための絞り加工と、
嵌合凹部、嵌合位置表示部、嵌合解除位置表示部を形成
するためのダボ出し加工と、を同時に行う方法としてい
る。According to a first aspect of the present invention, there is provided a method for forming a connecting steel pipe, wherein a swaging-processed end has a guide groove and a fitting recess at one end. The connecting portion has a fitting convex portion that projects inward to enter the guide groove and fits into the fitting concave portion, and has a fitting position display portion and a fitting release position display portion near one end. A method of forming a steel pipe, and drawing for forming a guide groove,
The dowel forming process for forming the fitting concave portion, the fitting position display portion, and the fitting release position display portion is performed at the same time.
【０００７】また、請求項２記載の連結用鋼管の成形装
置は、スエージ加工された一端部には誘導溝及び嵌合凹
部を有し、他端部には内方に突出して誘導溝に進入しか
つ嵌合凹部に嵌合する嵌合凸部を有し、一端部近傍には
嵌合位置表示部及び嵌合解除位置表示部を有する連結用
鋼管を成形する装置であって、連結用鋼管の一端部を固
定する固定金型と、誘導溝を形成するための絞り加工用
金型と、嵌合凹部、嵌合位置表示部、嵌合解除位置表示
部を形成するための第１乃至第３ダボ出し加工用金型
と、を備えてなる構成としている。According to a second aspect of the present invention, there is provided an apparatus for forming a steel pipe for connection, wherein a swaged one end has a guide groove and a fitting recess, and the other end projects inward and enters the guide groove. And a connecting steel pipe having a fitting convex portion fitted into the fitting concave portion and having a fitting position display portion and a fitting release position display portion near one end thereof. , A drawing die for forming a guide groove, and a first to a first for forming a fitting concave portion, a fitting position display portion, and a fitting release position display portion. And a 3 dowel forming die.
【０００８】[0008]
【作用】請求項１記載の方法によれば、誘導溝を形成す
るための絞り加工と、嵌合凹部、嵌合位置表示部、嵌合
解除位置表示部を形成するためのダボ出し加工と、を同
時に行うので、製造工程が簡略になる。According to the first aspect of the present invention, a drawing process for forming a guide groove, a dowel forming process for forming a fitting concave portion, a fitting position display portion, and a fitting release position display portion, Are performed simultaneously, so that the manufacturing process is simplified.
【０００９】また、請求項２記載の構成によれば、連結
用鋼管の一端部を固定する固定金型と、誘導溝を形成す
るための絞り加工用金型と、嵌合凹部、嵌合位置表示
部、嵌合解除位置表示部を形成するための第１乃至第３
ダボ出し加工用金型と、を備えるので、誘導溝を形成す
るための絞り加工と、嵌合凹部、嵌合位置表示部、嵌合
解除位置表示部を形成するためのダボ出し加工と、を同
時に行うことができる。According to the second aspect of the present invention, a fixed die for fixing one end of the connecting steel pipe, a drawing die for forming a guide groove, a fitting recess, and a fitting position. First to third for forming the display unit and the disengagement position display unit
And a dowel forming die, so that a drawing process for forming a guide groove and a dowel forming process for forming a fitting concave portion, a fitting position display portion, and a fitting release position display portion are performed. Can be done simultaneously.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図１乃至図３に基
づいて説明する。この連結用鋼管1 の成形方法は、スエ
ージ加工された一端部、すなわち挿入部2 には誘導溝4
及び嵌合凹部5 を有し、他端部、すなわち被挿入部3 に
は内方に突出して誘導溝4に進入しかつ嵌合凹部5 に嵌
合する嵌合凸部6 を有し、挿入部2 の近傍には嵌合位置
表示部7 及び嵌合解除位置表示部8 を有する連結用鋼管
1 を成形する方法であって、誘導溝4 を形成するための
絞り加工と、嵌合凹部5 、嵌合位置表示部7、嵌合解除
位置表示部8 を形成するためのダボ出し加工と、を同時
に行うものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The method of forming the connecting steel pipe 1 is as follows.
The other end portion, that is, the inserted portion 3, has a fitting convex portion 6 which projects inward to enter the guide groove 4 and fits into the fitting concave portion 5. In the vicinity of the section 2, a connecting steel pipe having a fitting position display section 7 and a fitting release position display section 8
1, a drawing process for forming a guide groove 4, a dowel forming process for forming a fitting concave portion 5, a fitting position display portion 7, and a fitting release position display portion 8, Are performed at the same time.
【００１１】また、この連結用鋼管1 の成形方法は、連
結用鋼管1 の挿入部2 を固定する上下一対の第１固定金
型9,10と、誘導溝4 を形成するための絞り加工用金型13
と、嵌合凹部5 、嵌合位置表示部7 、嵌合解除位置表示
部8 を形成するための第１乃至第３ダボ出し加工用金型
15,16,17と、を備えてなる成形装置によって実施され
る。The method for forming the connecting steel pipe 1 includes a pair of upper and lower first fixing dies 9 and 10 for fixing the insertion portion 2 of the connecting steel pipe 1, and a drawing process for forming the guide groove 4. Mold 13
And first to third dowel forming dies for forming the fitting concave portion 5, the fitting position display portion 7, and the fitting release position display portion 8.
15, 16 and 17 are carried out by a molding device comprising:
【００１２】第１固定金型9,10には、各々連結用鋼管1
の外径に対応した大きさを有する固定溝11が設けられ
る。また、上側の第１固定金型9 には、後述の絞り加工
用金型13が貫通する大略Ｌ字状の貫通部12が設けられ
る。さらに、第１固定金型9,10の側部には、後述の第１
ダボ出し加工用金型15が貫通する貫通部（図示せず）が
設けられる。絞り加工用金型13は、その下端に大略Ｌ字
状の刻設部13a を有するものであり、第１固定金型9,10
の上方に配置される。第１乃至第３ダボ出し加工用金型
15,16,17は、細長のものであり、先端部が先細りしてい
る。第１ダボ出し加工用金型15は第１固定金型9,10の側
方に、第２ダボ出し加工用金型16は絞り加工用金型13か
ら所定間隔をおいて平行に、第３ダボ出し加工用金型17
は第１ダボ出し加工用金型15から所定間隔をおいて平行
に、各々配置される。The first fixed molds 9 and 10 each have a steel pipe 1 for connection.
There is provided a fixing groove 11 having a size corresponding to the outer diameter of. The upper first fixed die 9 is provided with a substantially L-shaped penetrating portion 12 through which a drawing die 13 to be described later penetrates. Further, the first fixed molds 9 and 10 have a side portion to be described later.
A penetrating portion (not shown) through which the dowel forming die 15 penetrates is provided. The drawing die 13 has a substantially L-shaped engraved portion 13a at the lower end thereof.
Is arranged above. First to third doweling molds
15, 16, and 17 are slender, and the tips are tapered. The first doweling die 15 is lateral to the first fixed dies 9 and 10, and the second doweling die 16 is parallel to the drawing die 13 at a predetermined distance from the third die 9. Doweling die 17
Are arranged in parallel with each other at a predetermined distance from the first doweling die 15.
【００１３】連結用鋼管1 の成形方法を、工程順に詳し
く説明すると、まず、帯状の鉄板の短辺を湾曲させ、短
辺両端部を溶接固着したものを所定長さに切断すること
により、造管が行われる。次に、連結用鋼管1 の一端部
をスエージ加工することにより、小径の挿入部2 が形成
される。次に、連結用鋼管1 の挿入部2 を、下側の第１
固定金型10の固定溝11に配置し、上側の第１固定金型9
を下降させることによって、上下一対の第１固定金型9,
10でチャックして固定する。The method of forming the connecting steel pipe 1 will be described in detail in the order of steps. First, the short side of a strip-shaped iron plate is bent, and the short-sided end of which is fixed by welding is cut into a predetermined length to form a steel plate. Tubes are made. Next, a small-diameter insertion portion 2 is formed by swaging one end of the connecting steel pipe 1. Next, insert the insertion portion 2 of the connecting steel pipe 1 into the lower first
It is arranged in the fixing groove 11 of the fixed die 10 and the upper first fixed die 9
By lowering, a pair of upper and lower first fixed molds 9,
Chuck and fix with 10.
【００１４】そして、絞り加工用金型13を、上方から上
側の第１固定金型9 に貫通させて連結用鋼管1 の挿入部
2 に絞り加工を施すとともに、第１ダボ出し加工用金型
15を、側方から第１固定金型9,10に貫通させて挿入部2
にダボを打つことにより、誘導溝4 と嵌合凹部5 が同時
に形成される。さらに、これと同時に、第２ダボ出し加
工用金型16を下降させて挿入部2 の近傍、誘導溝4 から
軸線方向に所定間隔おいた位置にダボを打つとともに、
第３ダボ出し加工用金型17を側方から接近させて挿入部
2 近傍、嵌合凹部5 から軸線方向に所定間隔おいた位置
にダボを打つことにより、嵌合解除位置表示部8 と嵌合
位置表示部7 が、誘導溝4 、嵌合凹部5と同時に形成さ
れる。Then, the drawing die 13 is passed through the first fixed die 9 on the upper side from above to insert the steel pipe 1 for connection.
2 is drawn and the first doweling die
15 into the first fixed molds 9 and 10 from the side,
The guide groove 4 and the fitting concave portion 5 are formed at the same time by doweling. Further, at the same time, the second doweling die 16 is lowered to strike a dowel in the vicinity of the insertion portion 2 and at a predetermined axial distance from the guide groove 4,
Insert the third doweling die 17 by approaching it from the side
(2) A dowel is formed at a predetermined distance in the axial direction from the fitting recess 5 near the fitting recess 5, so that the fitting release position display portion 8 and the fitting position display portion 7 are formed simultaneously with the guide groove 4 and the fitting recess 5. Is done.
【００１５】ところで、連結用鋼管1 の被挿入部3 は、
以下の工程で成形される。すなわち、造管時の溶接作業
により内周面に生じたビード18をリーマ19で切削した
後、上下一対の第２固定金型20,21 でチャックして固定
し、第４ダボ出し加工用金型22を下降させてダボを打つ
ことにより、嵌合凸部6 が形成される。The inserted portion 3 of the connecting steel pipe 1 is
It is formed in the following steps. That is, after the bead 18 generated on the inner peripheral surface by the welding operation at the time of pipe making is cut by the reamer 19, it is chucked and fixed by the pair of upper and lower second fixed dies 20, 21 to form the fourth doweling die. The fitting projection 6 is formed by lowering the mold 22 and hitting the dowel.
【００１６】かかる連結用鋼管1 の成形方法において
は、第１固定金型9,10、絞り加工用金型13、第１乃至第
３ダボ出し加工用金型15,16,17を備えた成形装置によっ
て、誘導溝4 、嵌合凹部5 、嵌合解除位置表示部8 、嵌
合位置表示部7 を同時に形成することができるので、工
程が簡略になり、効率良く連結用鋼管1 を製造すること
ができる。In the method of forming the connecting steel pipe 1, a forming method including the first fixed dies 9,10, the drawing die 13, and the first to third doweling dies 15,16,17 is provided. With the device, the guide groove 4, the fitting concave portion 5, the fitting releasing position display portion 8, and the fitting position display portion 7 can be formed at the same time, so that the process is simplified and the connecting steel pipe 1 is efficiently manufactured. be able to.
【００１７】[0017]
【発明の効果】請求項１記載の連結用鋼管の成形方法
は、誘導溝を形成するための絞り加工と、嵌合凹部、嵌
合位置表示部、嵌合解除位置表示部を形成するためのダ
ボ出し加工と、を同時に行うので、製造工程が簡略にな
る。従って、堅固に連結することが可能な構成を有する
連結用鋼管を効率良く製造することができる。According to the first aspect of the present invention, there is provided a method for forming a connecting steel pipe, comprising: drawing for forming a guide groove; and forming a fitting concave portion, a fitting position display portion, and a fitting release position display portion. Since the doweling process is performed at the same time, the manufacturing process is simplified. Therefore, it is possible to efficiently manufacture a connecting steel pipe having a configuration capable of firmly connecting.
【００１８】また、請求項２記載の連結用鋼管の成形装
置は、連結用鋼管の一端部を固定する固定金型と、誘導
溝を形成するための絞り加工用金型と、嵌合凹部、嵌合
位置表示部、嵌合解除位置表示部を形成するための第１
乃至第３ダボ出し加工用金型と、を備えるので、誘導溝
を形成するための絞り加工と、嵌合凹部、嵌合位置表示
部、嵌合解除位置表示部を形成するためのダボ出し加工
と、を同時に行うことができる。Further, according to a second aspect of the present invention, there is provided an apparatus for forming a steel pipe for connection, comprising: a fixing die for fixing one end of the steel pipe for connection; a drawing die for forming a guide groove; First form for forming a fitting position display section and a fitting release position display section
And a third dowel forming die, so that a drawing process for forming a guide groove and a dowel forming process for forming a fitting concave portion, a fitting position display portion, and a fitting release position display portion. And can be performed simultaneously.
【図１】本発明の一実施例の成形方法を実施する装置を
示す斜視図である。FIG. 1 is a perspective view showing an apparatus for performing a molding method according to an embodiment of the present invention.
【図２】連結用鋼管の被挿入部のビードを削る工程を示
す部分断面図である。FIG. 2 is a partial cross-sectional view showing a step of cutting a bead at an inserted portion of a connecting steel pipe.
【図３】連結用鋼管の被挿入部に嵌合凸部を設けるため
の金型を示す斜視図である。FIG. 3 is a perspective view showing a metal mold for providing a fitting convex portion in an inserted portion of a connecting steel pipe.
【図４】従来の連結用鋼管を示す斜視図である。FIG. 4 is a perspective view showing a conventional connecting steel pipe.
【図５】その挿入部、被挿入部に誘導溝、嵌合凹部、嵌
合凸部、嵌合位置表示部、嵌合解除位置表示部を設けた
ものを示す斜視図である。FIG. 5 is a perspective view showing a configuration in which a guide groove, a fitting concave portion, a fitting convex portion, a fitting position display portion, and a fitting release position display portion are provided on the insertion portion and the insertion portion.
1 連結用鋼管 2 挿入部 3 他端部 4 誘導溝 5 嵌合凹部 6 嵌合凸部 7 嵌合位置表示部 8 嵌合解除位置表示部 1 Steel pipe for connection 2 Insertion section 3 Other end 4 Guide groove 5 Fitting concave part 6 Fitting convex part 7 Fitting position display part 8 Fitting release position display part
Claims (2)
び嵌合凹部を有し、他端部には内方に突出して誘導溝に
進入しかつ嵌合凹部に嵌合する嵌合凸部を有し、一端部
近傍には嵌合位置表示部及び嵌合解除位置表示部を有す
る連結用鋼管を成形する方法であって、誘導溝を形成す
るための絞り加工と、嵌合凹部、嵌合位置表示部、嵌合
解除位置表示部を形成するためのダボ出し加工と、を同
時に行うことを特徴とする連結用鋼管の成形方法。A swaged one end has a guide groove and a fitting recess, and the other end projects inward to enter the guide groove and fit into the fitting recess. A method for forming a connecting steel pipe having a fitting position display portion and a fitting release position display portion near one end, comprising: drawing for forming a guide groove; A method for forming a connecting steel pipe, comprising: simultaneously performing a dowel forming process for forming a mating position display section and a mating release position display section.
び嵌合凹部を有し、他端部には内方に突出して誘導溝に
進入しかつ嵌合凹部に嵌合する嵌合凸部を有し、一端部
近傍には嵌合位置表示部及び嵌合解除位置表示部を有す
る連結用鋼管を成形する装置であって、連結用鋼管の一
端部を固定する固定金型と、誘導溝を形成するための絞
り加工用金型と、嵌合凹部、嵌合位置表示部、嵌合解除
位置表示部を形成するための第１乃至第３ダボ出し加工
用金型と、を備えてなる連結用鋼管の成形装置。2. A swaging-processed one end has a guide groove and a fitting recess, and the other end projects inward to enter the guide groove and fit into the fitting recess. An apparatus for forming a connecting steel pipe having a fitting position display part and a fitting release position display part near one end, comprising: a fixing die for fixing one end of the connecting steel pipe; and a guide groove. And a first to a third dowel forming die for forming a fitting concave portion, a fitting position display portion, and a fitting release position display portion. Equipment for forming steel pipes for connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5305459A JP2707957B2 (en) | 1993-12-06 | 1993-12-06 | Method and apparatus for forming steel pipe for connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5305459A JP2707957B2 (en) | 1993-12-06 | 1993-12-06 | Method and apparatus for forming steel pipe for connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07155878A JPH07155878A (en) | 1995-06-20 |
| JP2707957B2 true JP2707957B2 (en) | 1998-02-04 |
Family
ID=17945404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5305459A Expired - Fee Related JP2707957B2 (en) | 1993-12-06 | 1993-12-06 | Method and apparatus for forming steel pipe for connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2707957B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847832A (en) * | 2012-09-06 | 2013-01-02 | 庄景阳 | Support for main foaming tubes of carburetor |
-
1993
- 1993-12-06 JP JP5305459A patent/JP2707957B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07155878A (en) | 1995-06-20 |
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