JPH0518650B2 - - Google Patents
Info
- Publication number
- JPH0518650B2 JPH0518650B2 JP59241448A JP24144884A JPH0518650B2 JP H0518650 B2 JPH0518650 B2 JP H0518650B2 JP 59241448 A JP59241448 A JP 59241448A JP 24144884 A JP24144884 A JP 24144884A JP H0518650 B2 JPH0518650 B2 JP H0518650B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- spatula
- forming
- closing
- closed
- 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
- 238000000034 method Methods 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000010409 ironing Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 239000010959 steel Substances 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、円筒体の端部閉塞方法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for closing the end of a cylindrical body.
従来において、円筒体の端部を回転閉塞するに
は、円筒体を一対の成形ロールに接触させること
により行つていた（特公昭44−5318号）。
Conventionally, the end portion of a cylindrical body was rotatably closed by bringing the cylindrical body into contact with a pair of forming rolls (Japanese Patent Publication No. 5318/1983).
しかしながら、この従来の方法は、円筒体の端
部を回転成形により閉塞した際に、しぼり部が内
側に突出するため円筒体の閉塞部の内壁面が滑ら
かでなくなると共に、しぼり部が内側に突出する
結果、このしぼり部に透孔が生ずることがあるた
め、この透孔を塞ぐ工程を別途必要とする場合が
あつた。 However, in this conventional method, when the end of the cylindrical body is closed by rotational molding, the squeeze part protrudes inward, so the inner wall surface of the closed part of the cylinder becomes uneven, and the squeeze part protrudes inward. As a result, a through hole may be formed in the squeeze portion, and a separate step of closing the through hole may be required in some cases.
〔発明の目的〕
この発明はかかる状況に基づいてなされたもの
であり、その目的は、しぼり部の内壁面が滑らか
であるとともにこのしぼり部に透孔（ピンホー
ル）が形成されにくい円筒体の端部閉塞方法を提
供することである。[Object of the Invention] The present invention has been made based on the above situation, and its purpose is to create a cylindrical body whose inner wall surface of the throttle part is smooth and in which through-holes (pinholes) are difficult to form in the throttle part. An object of the present invention is to provide an end closure method.
そして、この目的は、円筒体又は成形用へらを
回転させ、前記円筒体の端部を前記成形用へらに
つてしぼり閉塞する円筒体の端部閉塞方法におい
て、
前記成形用へらを前記円筒体の軸心方向に扱く
ことによつてこの円筒体の端部を閉塞するととも
にしぼり凸部をその閉塞された部分の外側に突出
させ、前記成形用へらによつてこのしぼり凸部を
溶断するを特徴とする円筒体の端部閉塞方法によ
つて達成された。
This purpose is to provide a method for closing an end of a cylindrical body by rotating a cylindrical body or a shaping spatula, and squeezing and closing the end of the cylindrical body with the shaping spatula. By handling it in the axial direction, the end of the cylindrical body is closed, the squeeze protrusion is made to protrude outside the closed part, and the squeeze protrusion is cut by melting with the forming spatula. This was achieved by the characteristic method of closing the end of the cylindrical body.
以下、第１図〜第４図に基づいてこの発明の実
施例を説明する。
Embodiments of the present invention will be described below based on FIGS. 1 to 4.
図において、１１は円筒体、１３は成形用へら
である。円筒体１１はアルミニウム製であり、軸
芯を中心として適宜回転手段（図示せず）により
回転される。また、成形用へら１３は鋼製であ
り、基部１５に湾曲状の成形部１７とこの成形部
１７に連設された突起状のしごき突起部１９が一
体形成されている。そして、この成形用へら１３
は、適宜手段（図示せず）によつて矢印方向（第
１図において、Ａ→Ｂ→Ｃ→Ｄ→Ａ）に移動す
る。なお、成形用へら１３における成形部１７お
よびしごき突起部１９の作用は後記する。 In the figure, 11 is a cylindrical body, and 13 is a forming spatula. The cylindrical body 11 is made of aluminum and is rotated about an axis by an appropriate rotation means (not shown). Further, the forming spatula 13 is made of steel, and a curved forming part 17 and a protruding ironing protrusion 19 connected to the forming part 17 are integrally formed on the base 15. And this molding spatula 13
is moved in the direction of the arrow (A→B→C→D→A in FIG. 1) by appropriate means (not shown). The functions of the forming part 17 and the ironing protrusion 19 in the forming spatula 13 will be described later.
本発明方法は、まず、回転する円筒体１１に成
形用へら１３の成形部１７を圧接する。すると第
２図に示すように円筒体１１の端部が、成形用へ
ら１３の成形部１７の湾曲状に沿つて成形され
る。このとき、円筒体１１の端部は未だ完全にふ
さがれていない。この後、第３図に示すように成
形用へら１３のしごき突起部１９をその円筒体１
１の回転軸芯近くまで移動させ、円筒体１１の端
部を扱きながら閉塞し、図のようにしぼり凸部２
１を外側に形成する。そして、更に、成形用へら
１３のしごき突起部１９をその回転軸芯を通過さ
せることにより、このしぼり凸部２１を切断し、
（第４図参照）、円筒体１１の端部閉塞作業は終了
する（このとき成形用へら１３は第１図における
Ｃの位置にある）。なお、円筒体１１が回転して
いるのに対して成形用へら１３が固定されている
ため、両者１１，１３の接触部には熱が発生する
結果、かかる切断は溶断により行われる。 In the method of the present invention, first, the forming part 17 of the forming spatula 13 is pressed against the rotating cylindrical body 11. Then, as shown in FIG. 2, the end of the cylindrical body 11 is formed along the curved shape of the forming part 17 of the forming spatula 13. At this time, the end of the cylindrical body 11 is not completely closed yet. After this, as shown in FIG. 3, the ironing projection 19 of the forming spatula 13 is
1, close the end of the cylindrical body 11 while handling it, and squeeze the convex part 2 as shown in the figure.
1 on the outside. Then, the squeezing protrusion 21 is cut by passing the rotation axis of the squeezing protrusion 19 of the forming spatula 13,
(See FIG. 4), the end closing operation of the cylindrical body 11 is completed (at this time, the forming spatula 13 is at position C in FIG. 1). Note that since the cylindrical body 11 is rotating while the forming spatula 13 is fixed, heat is generated at the contact area between the two 11 and 13, and as a result, such cutting is performed by fusing.
円筒体１１の端部閉塞作業が終了後は、成形用
へら１３は回転軸芯方向に離れ（第１図における
Ｃ→Ｄ→Ａ）て元の状態に戻る。 After the end closing operation of the cylindrical body 11 is completed, the forming spatula 13 moves away in the direction of the rotation axis (C→D→A in FIG. 1) and returns to its original state.
この発明に係る円筒体の端部閉塞方法は、円筒
体又は成形用へらを回転させ、前記円筒体の端部
を前記成形用へらによつてしぼり閉塞する円筒体
の端部閉塞方法において、
前記成形用へらを前記円筒体の軸心方向に扱く
ことによつてこの円筒体の端部を閉塞するととも
にしぼり凸部をその閉塞された部分の外側に突出
させ、前記成形用へらによつてこのしぼり凸部を
溶断するものであるため、この方法を使用すれ
ば、一連の工程によつて、内側（閉塞部の）にバ
リを発生させることなく且つしぼり凸部に透孔を
発生させることなく、円筒体の端部を閉塞させる
ことができるものである。
A method for closing an end of a cylindrical body according to the present invention includes rotating a cylindrical body or a shaping spatula, and squeezing and closing an end of the cylindrical body with the shaping spatula, comprising: By handling the shaping spatula in the axial direction of the cylindrical body, the end of the cylindrical body is closed, and the squeeze convex portion is made to protrude outside the closed part, and the shaping spatula is used to Since this squeeze convex part is melted and cut, by using this method, through a series of steps, it is possible to create a through hole in the squeeze convex part without creating burrs on the inside (of the closed part). This allows the end of the cylindrical body to be closed.
第１図〜第４図はこの発明に係る円筒体の端部
閉塞方法の工程を示した図である。
１１……円筒体、１３……成形用へら、１７…
…成形部、１９……しごき突起部、２１……しぼ
り凸部。
1 to 4 are diagrams showing the steps of the method for closing the end of a cylindrical body according to the present invention. 11... Cylindrical body, 13... Molding spatula, 17...
. . . Molding portion, 19 . . . Squeezing projection portion, 21 .
Claims (1)
体の端部を前記成形用へらによつてしぼり閉塞す
る円筒体の端部閉塞方法において、 前記成形用へらを前記円筒体の軸心方向に扱く
ことによつてこの円筒体の端部を閉塞するととも
にしぼり凸部をその閉塞された部分の外側に突出
させ、前記成形用へらによつてこのしぼり凸部を
溶断するを特徴とする円筒体の端部閉塞方法。[Scope of Claims] 1. A method for closing an end of a cylindrical body by rotating a cylindrical body or a shaping spatula, and squeezing and closing an end of the cylindrical body with the shaping spatula, comprising: By handling it in the axial direction of the body, the end of this cylindrical body is closed, and the squeeze protrusion is made to protrude outside the closed part, and the squeeze protrusion is cut by melting with the forming spatula. A method for closing an end of a cylindrical body, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59241448A JPS61119334A (en) | 1984-11-15 | 1984-11-15 | Method and device for choking end part of cylindrical body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59241448A JPS61119334A (en) | 1984-11-15 | 1984-11-15 | Method and device for choking end part of cylindrical body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61119334A JPS61119334A (en) | 1986-06-06 |
| JPH0518650B2 true JPH0518650B2 (en) | 1993-03-12 |
Family
ID=17074454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59241448A Granted JPS61119334A (en) | 1984-11-15 | 1984-11-15 | Method and device for choking end part of cylindrical body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119334A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013255929A (en) * | 2012-06-12 | 2013-12-26 | Kyoei-Seisakusho Co Ltd | Method of closing tube end of tube material |
| CN103691789B (en) * | 2013-12-06 | 2016-08-17 | 天津重型装备工程研究有限公司 | A kind of method of large thick-wall cylindrical blank hot spinning forming head |
| JP7215343B2 (en) * | 2019-06-07 | 2023-01-31 | 日本製鉄株式会社 | METHOD FOR MANUFACTURING TUBE MEMBER WITH CLOSED END |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5317547A (en) * | 1976-07-31 | 1978-02-17 | Hitachi Shipbuilding Eng Co | Method of position controlling torch of welder |
-
1984
- 1984-11-15 JP JP59241448A patent/JPS61119334A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5317547A (en) * | 1976-07-31 | 1978-02-17 | Hitachi Shipbuilding Eng Co | Method of position controlling torch of welder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61119334A (en) | 1986-06-06 |
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