JPS62292218A - Manufacture of bent pipe - Google Patents
Manufacture of bent pipeInfo
- Publication number
- JPS62292218A JPS62292218A JP13700186A JP13700186A JPS62292218A JP S62292218 A JPS62292218 A JP S62292218A JP 13700186 A JP13700186 A JP 13700186A JP 13700186 A JP13700186 A JP 13700186A JP S62292218 A JPS62292218 A JP S62292218A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- groove
- bent
- worked
- processed
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000005219 brazing Methods 0.000 claims abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 9
- 238000003754 machining Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000003801 milling Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔発明の技術分野〕
この発明は自動車の油圧式ブレーキ、或いは空調装置な
どに用いられる鋼管の加工用として好適な屈曲管の製造
方法に関するものである。[Detailed Description of the Invention] 3. Detailed Description of the Invention [Technical Field of the Invention] This invention relates to a method for manufacturing a bent pipe suitable for processing steel pipes used in automobile hydraulic brakes or air conditioning systems. It is.
従来、この種の屈曲管を製造するには、管の屈曲部にお
いて断面積が減することがないよう、内部に小砂や氷を
充填し、パイプベンダで屈曲させた後、それを除去する
方法（いわゆる氷曲げ法、或いは砂曲げ法）が提案され
ている。Conventionally, to manufacture this type of bent pipe, the inside of the pipe is filled with small sand or ice so that the cross-sectional area does not decrease at the bend, the pipe is bent with a pipe bender, and then removed. (so-called ice bending method or sand bending method) has been proposed.
然しながら、このような加工方法では小砂の充填や排除
が容易でなく、また、後者では管の長さが短い場合はと
もかくとして、管が長い場合には冷凍袋間が大型化する
不具合があった。However, with this processing method, it is not easy to fill and remove small sand, and in the latter case, apart from short tube lengths, when the tubes are long, the gap between the freezer bags becomes large. .
この発明は上記不具合を解消し、長い管を少ない設備投
冑で容易に製造出来る加工方法を得ることを目的とする
ものであり、そろばん珠状の同形のカッタの複数枚を工
具軸に支持し、素材たる被加工管をこれと平行に配置し
両者の距離を接近させて素材の一側にカッタと同数の三
角形の溝を形成する第１工程と、次いで被加工管を溝側
へ屈曲させ、溝の外縁部を当接させる第２工程と、被加
工管の屈曲部内側にろうを添加してろう付けを行う第３
工程とで構成されている。The purpose of this invention is to solve the above-mentioned problems and provide a processing method that allows long pipes to be easily manufactured with a small amount of equipment investment. The first step is to arrange the pipe to be processed, which is the raw material, in parallel with this and bring the distance between them close to form the same number of triangular grooves as the cutters on one side of the material, and then to bend the pipe to be processed toward the groove side. , a second step in which the outer edges of the grooves are abutted, and a third step in which brazing is performed by adding solder to the inside of the bent portion of the pipe to be processed.
It consists of processes.
以下、図示の実施例によってこの発明を説明すると、第
１図はこの製造方法によって製造せられるべき被加工管
１を示し、＋ａ）は曲率の小さい管、（ｂｌは曲率の大
きい管、（ｅ）は折り返し管である。Hereinafter, the present invention will be explained with reference to illustrated embodiments. FIG. 1 shows a pipe to be processed 1 to be manufactured by this manufacturing method, +a) is a pipe with a small curvature, (bl is a pipe with a large curvature, and (e ) is a folded tube.
第２図は、この発明方法の第１工程を示す、すなわち、
横フライス盤の工員軸１０にそろばん珠状のカッタ１）
の３枚を工具軸１０に併設し、素材たる被加工管Ｍを前
記工具軸１０と平行に工作機械のベッド（図示してない
）ヘクランプし、ベッドを動かして両者の距離を接近さ
せ、素材Ｍの一側にカッタ１）と同数の三角形の溝１２
を形成する。第３図は加工を終えた状態の被加工管Ｍを
示す。図から明らかなように、カッタ１）の切込み深さ
は被加工管Ｍの軸芯を越えており、後の折り曲げ工程を
容易にしている。また、溝１２の幅Ｗと角度θは被加工
管Ｍの曲率の大きさや、溝１２の数に併せて適宜に設定
される。FIG. 2 shows the first step of the method of the invention, namely:
An abacus bead-shaped cutter 1) is placed on the worker shaft 10 of a horizontal milling machine.
The three pieces are attached to the tool axis 10, and the workpiece pipe M, which is the material, is clamped to the bed (not shown) of the machine tool parallel to the tool axis 10, and the bed is moved to bring the two closer together. Triangular grooves 12 of the same number as cutters 1) on one side of M
form. FIG. 3 shows the processed tube M in a state where processing has been completed. As is clear from the figure, the cutting depth of the cutter 1) exceeds the axis of the tube M to be processed, facilitating the subsequent bending process. Furthermore, the width W and angle θ of the grooves 12 are appropriately set in accordance with the magnitude of the curvature of the tube to be processed M and the number of grooves 12.
次いで、第２工程でこれを溝の内面の縁が相互に軽く当
接するように人力で屈曲させる。実施例から明らかなよ
うに、溝の内面は全面に亘って当接するわけではなく、
溝の外縁部１）１、−１が軽く当接する点まで屈曲させ
、溝の内部へ行くに従って幅の広くなる隙間が形成され
るようになっている（第１図参照）。Next, in a second step, this is manually bent so that the inner edges of the grooves lightly touch each other. As is clear from the examples, the inner surface of the groove does not abut over the entire surface;
The outer edges 1) of the groove are bent to the point where they lightly abut, forming a gap that becomes wider as it goes inside the groove (see Figure 1).
次ぎに第３工程で、被加工管Ｍの溝１２にペースト状の
金属ろう１３を添加して、還元雰囲気の炉中で加熱しろ
う付けを行う。斯くて、第１図で示す製品が出来トがる
。Next, in a third step, a paste-like metal solder 13 is added to the groove 12 of the tube to be processed M, and brazing is performed by heating in a furnace in a reducing atmosphere. In this way, the product shown in FIG. 1 is completed.
この発明に係る屈曲管の製造方法は、以−ヒのように、
被加工管の屈曲に先立って、機械加工によりその側面に
中側が狭い三角形の溝を複数個形成するものであるから
、従来の砂曲げ法や氷曲げ法に比して、工程や設備が簡
単になる。また、カッタは複数個を同軸に支持するから
、谷溝の深さや溝間の距離が一定し、続く曲げ工程にお
いて高精度で折り曲げ出来る。更に、溝は底部が狭くな
っており、所定の間隙が形成されるので、金属ろうの流
れや使用量が安定し、経済的なろう付けが可能となる等
の効果がある。The method for manufacturing a bent pipe according to the present invention is as follows:
Prior to bending the pipe to be processed, multiple triangular grooves with a narrow center are formed on the side surface by machining, so the process and equipment are simpler than the conventional sand bending method or ice bending method. become. In addition, since a plurality of cutters are coaxially supported, the depth of the grooves and the distance between the grooves are constant, allowing for highly accurate bending in the subsequent bending process. Furthermore, since the bottom of the groove is narrow and a predetermined gap is formed, the flow and amount of metal solder used are stable, and economical brazing is possible.
図面はこの発明の一実施例を示すものであり、第１図は
被加工管の外観図、第２ＶｇＪは加工装置の要部を示す
平面図、第３図は機械加工終了時の被加工管の平面図で
ある。
ｌＯ−工具軸、 １）− カッタ、１２−・
−三角形の溝、 １３−ろう、Ｍ〜 被加工管、
鵬１−・溝の外縁部、特許出願人 トキワ工業株
式会社
（幻
ＣＣ）
算工図The drawings show one embodiment of the present invention, and FIG. 1 is an external view of the tube to be processed, VgJ 2 is a plan view showing the main parts of the processing device, and FIG. 3 is the tube to be processed after machining is completed. FIG. lO-Tool axis, 1)-Cutter, 12-・
-triangular groove, 13-wax, M~ pipe to be processed,
Peng 1 - Outer edge of groove, patent applicant Tokiwa Kogyo Co., Ltd. (Gen CC) Mathematical diagram
Claims (3)
支持し、素材たる被加工管をこれと平行に配置し、両者
の距離を接近させて素材の一側にカッタと同数の三角形
の溝を形成する第１工程と、次いで被加工管を溝側へ屈
曲させ、溝の内面を相互に当接させる第２工程と、被加
工管の屈曲部内側にろうを添加してろう付けを行う第３
工程とを含む屈曲管の製造方法。(1) Support multiple cutters of the same shape in the shape of an abacus bead on the tool shaft, place the workpiece tube that is the raw material parallel to it, and close the distance between the two so that the same number of triangles as the cutters are on one side of the workpiece. The first step is to form a groove, then the second step is to bend the pipe to be processed toward the groove and bring the inner surfaces of the grooves into contact with each other, and to add solder to the inside of the bent part of the pipe to perform brazing. 3rd to do
A method for manufacturing a bent pipe, the method comprising:
曲げられる特許請求の範囲第１項記載の屈曲管の製造方
法。(2) The method for manufacturing a bent tube according to claim 1, wherein the number of cutters is three, and the tube to be processed is bent at right angles.
る特許請求の範囲第１項記載の屈曲管の製造方法。(3) The method for manufacturing a bent tube according to claim 1, wherein the number of cutters is five, and the tube to be processed is folded back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13700186A JPS62292218A (en) | 1986-06-12 | 1986-06-12 | Manufacture of bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13700186A JPS62292218A (en) | 1986-06-12 | 1986-06-12 | Manufacture of bent pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62292218A true JPS62292218A (en) | 1987-12-18 |
| JPH0311849B2 JPH0311849B2 (en) | 1991-02-18 |
Family
ID=15188476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13700186A Granted JPS62292218A (en) | 1986-06-12 | 1986-06-12 | Manufacture of bent pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62292218A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010071583A (en) * | 2008-09-19 | 2010-04-02 | Mitsubishi Electric Corp | Heat exchanger and water heater including the same |
| WO2012101323A3 (en) * | 2011-01-24 | 2012-09-20 | Maricap Oy | A conveying pipe part of a pneumatic material conveying system and a method for forming a pipe joint |
| JP2022116508A (en) * | 2021-01-29 | 2022-08-10 | 株式会社伊藤工業 | metal frame structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2505649Y2 (en) * | 1989-07-12 | 1996-07-31 | 株式会社ホウトク | Chair decoration mold mounting structure |
-
1986
- 1986-06-12 JP JP13700186A patent/JPS62292218A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010071583A (en) * | 2008-09-19 | 2010-04-02 | Mitsubishi Electric Corp | Heat exchanger and water heater including the same |
| WO2012101323A3 (en) * | 2011-01-24 | 2012-09-20 | Maricap Oy | A conveying pipe part of a pneumatic material conveying system and a method for forming a pipe joint |
| JP2014510238A (en) * | 2011-01-24 | 2014-04-24 | マリカプ オサケユフティオ | Pneumatic material transfer system pipe feeding section and pipe joint forming method |
| JP2022116508A (en) * | 2021-01-29 | 2022-08-10 | 株式会社伊藤工業 | metal frame structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0311849B2 (en) | 1991-02-18 |
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