JPS6018260B2 - Forming method for pipe end connection head in double-wound steel pipe - Google Patents
Forming method for pipe end connection head in double-wound steel pipeInfo
- Publication number
- JPS6018260B2 JPS6018260B2 JP10477180A JP10477180A JPS6018260B2 JP S6018260 B2 JPS6018260 B2 JP S6018260B2 JP 10477180 A JP10477180 A JP 10477180A JP 10477180 A JP10477180 A JP 10477180A JP S6018260 B2 JPS6018260 B2 JP S6018260B2
- Authority
- JP
- Japan
- Prior art keywords
- double
- pipe
- steel pipe
- wound steel
- head
- 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
Links
Landscapes
- Forging (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【発明の詳細な説明】
本発明は車鋼、機械設備その他各種装置における給油、
給気等の供給路として使用する二重巻鋼管の管端接続頭
部成型方法に関し、特に、管端鞍続頭部に形成した、前
面に、先端側に先細状に傾斜した面（配管時に相手接続
基体の円錐状の関口傾斜座面と当接係合する押圧シート
面となる；以下傾斜面と云う）に断面鏡歯状の平行溝を
成型加工することにより、二重巻鋼管の巻終り機縁部に
必然的に生ずる傾斜面の線状窪みを寸断するようにした
接続頭部成型方法に関する。[Detailed Description of the Invention] The present invention relates to refueling in vehicle steel, mechanical equipment, and other various devices.
Regarding the method for forming the pipe end connection head of a double-wound steel pipe used as a supply path for air supply, etc., in particular, the front face formed on the pipe end saddle connection head is tapered toward the tip (when piping By molding parallel grooves with a mirror-toothed cross section on the pressing sheet surface that abuts and engages the conical entrance inclined seat surface of the mating connection base (hereinafter referred to as the inclined surface), the winding of the double-wound steel pipe is The present invention relates to a method for forming a connecting head in which a linear recess on an inclined surface that inevitably occurs at the edge of the final machine is cut off.
従来の二重巻鋼管の管端接続頭部成型方法は、単に管端
部を先端外方から鞠芯万向に押圧加工して膨出接続頭部
を形成するだけであるため、膨出頭部前面の傾斜面の管
肌表面には、二重巻鋼管の巻終り機縁部に必然的に形成
される管長方向への線状窪みがそのままの状態で残存す
る。The conventional method for forming the pipe end connection head of a double-wound steel pipe simply involves pressing the pipe end from the outside of the tip in all directions to form a bulging connection head. On the tube skin surface of the front inclined surface, the linear depressions in the tube length direction that are inevitably formed at the winding end edge of the double-wound steel tube remain as they are.
このため、該接続頭部の傾斜面を相手側接続基体の閉口
座面に圧接したときに傾斜面の前記窪みから油、空気等
の洩れを譲発するという問題があった。本発明はかかる
問題を効果的に解決した二重巻鋼管の接続頭部成型方法
を提供するもので、以下図示の加工工程に沿って説明す
れば、先ず、管外周面に管長に沿って巻終り端縁部によ
る線状窪み８を有する二重巻鋼管１（第１図）の管端部
１′を一定長さの加工代を突出させてチャック６で握持
し、パンチ部材５の鞠芯部に設けた裁頭円錐状に凹部５
′で先端外方から該加工代の部分を鼠芯方向へ押圧加工
することにより、前記管端部１′に、前面に先端側に先
細状に額斜した押圧シート面３を有し且つ組込んだ綿付
けナットによってその背面を掛圧される断面ブリッジ状
の膨出頭部２を形成する。（第２図）次いで、チャック
６′で握持した膨出頭部の頂部側から傾斜面３に刃物部
材７を当援させ、いずれか一方の部材を回転させて該傾
斜面３に円周方向の多数の平行溝４，４・・・を断面鋸
歯状に成型する。For this reason, there is a problem in that when the inclined surface of the connection head is pressed against the closed face of the mating connection base, oil, air, etc. leak from the recess of the inclined surface. The present invention provides a method for forming the connecting head of a double-wound steel pipe that effectively solves the above problem.The process will be explained below according to the process shown in the drawings. The pipe end 1' of a double-wound steel pipe 1 (FIG. 1) having a linear recess 8 formed by the end edge is gripped with a chuck 6 with a machining allowance of a certain length protruding, and the punch member 5 is A truncated conical recess 5 provided in the core.
By pressing the portion of the machining allowance from the outside of the tip in the inguinal direction, the tube end 1' has a pressed sheet surface 3 tapered toward the tip on the front surface and is assembled. A bulging head 2 having a bridge-like cross section is formed, the back surface of which is pressed by a cotton-tipped nut. (Fig. 2) Next, the blade member 7 is applied to the inclined surface 3 from the top side of the bulged head gripped by the chuck 6', and one of the members is rotated to apply the cutter member 7 to the inclined surface 3 in the circumferential direction. A large number of parallel grooves 4, 4, . . . are formed to have a serrated cross section.
尚、傾斜面に形成する平行溝４，４・・・は好ましくは
前記巻き終り端縁部の線状窪みを寸断するに充分な深さ
となるように調整する。また、平行構成型時のチャック
６′は膨出頭部成形時のチャック６をそのまま使用して
もよい。The parallel grooves 4, 4, . . . formed on the inclined surface are preferably adjusted to have a depth sufficient to cut off the linear depression at the end edge of the winding. Further, as the chuck 6' for the parallel configuration type, the chuck 6 used for forming the bulged head may be used as is.
実施例被加工二重巻鋼管
材質・・・・・・・・・ＳＰＣＣ−１
寸法………外径４．７６側、肉厚０．７肋、長さ５０仇
肋膨出頭部成型
二重巻鋼管の管端部７．Ｑ蚊を押圧加工のチャック出し
代としてクランク式プレス方式により押圧加工し、管端
膨出頭部を形成。Example Material of double-wound steel pipe to be processed: SPCC-1 Dimensions: Outer diameter 4.76 side, wall thickness 0.7 ribs, length 50 ribs, bulging head molded double Pipe end of rolled steel pipe 7. Q Mosquito is pressed using a crank press method as a chuck opening for pressing to form a bulging head at the end of the tube.
平行溝加工
ピッチ０．４肌、深さ０．１５柵の刃部を有する回転刃
物部材を回転数３５仇．ｐ．ｍ／ｍｉｎで管端膨出頭部
の傾斜面に当接して平行溝を型成。A rotary cutter member having a parallel groove machining pitch of 0.4 skin and a depth of 0.15 fence was rotated at a rotation speed of 35. p. m/min to form parallel grooves by contacting the inclined surface of the bulging head of the tube end.
上記の加工成型により、二重巻鋼管の巻終り端緑に形成
されていた傾斜面の線状窪みを、多数の平行溝で寸断し
てなる外蚤７．２肋、頭部高さ３．５肋からなる二重巻
管の膨出頭部を得た。Through the above-mentioned processing and forming, the linear depressions on the sloped surface formed at the end of the double-wound steel pipe are cut into many parallel grooves, resulting in an outer ridge of 7.2 ribs and a head height of 3. The bulging head of a double-winding tube consisting of five ribs was obtained.
本発明の二重者鋼管の接続領域成型方法によれば、管端
部に膨出頭部を成型し、しかる後に該頭部傾斜面の円周
方向に断面鎖歯状の多数の平行溝が加工成型されるため
、これら平行溝が傾斜面の前記線状窪みを寸断し油、空
気等の洩れ通路を遮断するとともに、管端部接続時の螺
合締着に伴って生ずる鏡歯鋭角部の窪みへのつぶれ効果
と相挨つて、煩斜面からの洩れを完全確実に防止した二
重巻鋼管の接続頭部を得ることができるものである。According to the method for forming the connecting region of a double-layer steel pipe of the present invention, a bulging head is formed at the end of the pipe, and then a large number of parallel grooves having a chain-tooth cross section are formed in the circumferential direction of the inclined surface of the head. Since these parallel grooves are molded, they cut off the linear depressions on the inclined surface and block the leakage passage of oil, air, etc., and also prevent the sharp corners of the mirror teeth that occur when the pipe ends are connected. Coupled with the effect of collapsing into the recess, it is possible to obtain a connecting head of a double-wound steel pipe that completely and reliably prevents leakage from the rough surface.
第１図乃至第３図は本発明に係る二重巻鋼の管端接続頭
部成型方法の一実施例を示す加工工程説明図、第４図は
二重巻鋼管一般の巻終り端縁部附近の拡大部分横断面図
である。
１・・・・・・二重巻鋼管、１′・・・…管端部、２・
・・・・・膨出頭部、３・・・・・・傾斜面、４・・・
・・・平行簿、５・・・・川パンチ部材、６・・・…チ
ャック、７・・・・・・刃物部材。
第１図第２図
第３図
第４図Figures 1 to 3 are explanatory diagrams of processing steps showing an embodiment of the method for forming the pipe end connection head of a double-wound steel pipe according to the present invention, and Figure 4 shows the end edge of a general double-wound steel pipe. It is an enlarged partial cross-sectional view of the vicinity. 1... Double-wound steel pipe, 1'... Pipe end, 2.
...bulging head, 3... inclined surface, 4...
...parallel book, 5... river punch member, 6... chuck, 7... cutter member. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
して該チヤツクに握持された二重巻鋼管１の上記管端部
１′を、該管端部と同軸状にセツトしたパンチ部材５の
軸芯部に設けた截頭円錐状の凹部５′により、管端側か
ら軸芯方向に押圧加工して前面に、先端側に先細状に傾
斜した面３を有する断面ブリツジ状の膨出頭部２を形成
し、その後上記傾斜面３に、膨出頭部２の頂部側より円
周方向の多数の平行溝４…を断面鋸歯状に成型加工する
ことを特徴とする二重巻鋼管における管端接続頭部の成
型方法。1. The pipe end 1' of the double-wound steel pipe 1, which is held by the chuck with the pipe end 1' protruding from the distal end surface of the split chuck 6, is fixed with a punch set coaxially with the pipe end. A truncated conical recess 5' provided in the axial center of the member 5 is pressed from the tube end side in the axial direction to form a bridge-shaped cross section having a front surface 3 tapered toward the tip end. A double-wound steel pipe characterized in that a bulging head 2 is formed, and then a large number of parallel grooves 4 extending in the circumferential direction from the top side of the bulging head 2 are formed in the inclined surface 3 so as to have a serrated cross section. A method for molding a pipe end connection head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10477180A JPS6018260B2 (en) | 1980-07-30 | 1980-07-30 | Forming method for pipe end connection head in double-wound steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10477180A JPS6018260B2 (en) | 1980-07-30 | 1980-07-30 | Forming method for pipe end connection head in double-wound steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5731427A JPS5731427A (en) | 1982-02-19 |
| JPS6018260B2 true JPS6018260B2 (en) | 1985-05-09 |
Family
ID=14389732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10477180A Expired JPS6018260B2 (en) | 1980-07-30 | 1980-07-30 | Forming method for pipe end connection head in double-wound steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6018260B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61197755A (en) * | 1985-02-25 | 1986-09-02 | Nippon Denso Co Ltd | Fuel supply device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2095877A1 (en) * | 1992-05-26 | 1993-11-27 | Masaaki Ohtsuji | Flexible screw type conveyor system |
-
1980
- 1980-07-30 JP JP10477180A patent/JPS6018260B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61197755A (en) * | 1985-02-25 | 1986-09-02 | Nippon Denso Co Ltd | Fuel supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5731427A (en) | 1982-02-19 |
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