JPS6018241A - Production of oval ring member - Google Patents
Production of oval ring memberInfo
- Publication number
- JPS6018241A JPS6018241A JP12609283A JP12609283A JPS6018241A JP S6018241 A JPS6018241 A JP S6018241A JP 12609283 A JP12609283 A JP 12609283A JP 12609283 A JP12609283 A JP 12609283A JP S6018241 A JPS6018241 A JP S6018241A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- oval
- ring
- work
- jig
- 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.)
- Pending
Links
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
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
し発明の技術分野］
この発明は長円形リング部材の製造方法に係り、特に船
舶・橋梁・建築物その他の構造物の構造部材の長円形開
口周縁部に付設される長円形リング部Ｈの製造方法に関
する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for manufacturing an oval ring member, and in particular is attached to the periphery of an oval opening in a structural member of a ship, bridge, building, or other structure. The present invention relates to a method of manufacturing an oval ring portion H.
［発明の技術的背景コ
船舶・橋梁・建築物等の人形構造物の構造部材、例えば
、船舶の船殻部材の桁板・助板・特設フレーム等には、
重量軽減・諸管霜綿の導設などの目的のために円形又は
長円形の開１」が設けられることが多（、その開口周縁
にはリング状をなす？甫弓ω部材が取付けられることも
多い。[Technical Background of the Invention] Structural members of doll structures such as ships, bridges, and buildings, such as girder plates, auxiliary plates, and special frames of ship hull members, include
A circular or oval opening 1 is often provided for the purpose of reducing weight and guiding the piping. There are also many.
そのうち長円形リング状補強部材の数４ま一船で１５０
０〜２０００個にもなり、この補強会■材−の製造のた
め相等な工数を要している。Among them, the number of oval ring-shaped reinforcing members is 150 for 4 ships.
There are 0 to 2,000 pieces, and an equivalent number of man-hours are required to manufacture these reinforcing members.
第１図、第２図に示すように、この補強用長円形リング
部材４ａ、４ｂは、外板又は甲板１に取付りられた面材
３のついた親部材２（桁板・ＪＩＪＪ板・特設フレーム
など）に設けられた開口５の周縁に溶接で取付けられる
ものである。As shown in FIGS. 1 and 2, these reinforcing oval ring members 4a, 4b are attached to a parent member 2 (girder board, JIJJ board, It is attached by welding to the periphery of an opening 5 provided in a special frame, etc.).
従来における長円形リング部材の製造方法を蓼見明する
と、第３図に示すように、鋼板力）らＩＪンク゛の幅を
幅とし、リング周長の半分の長さを長さとする短冊状素
材を切出す。次に第４図に示すように、これをプレス受
治具８の上にのせ、ブレス１甲治具７で押し曲げて、第
５図に示すような形１大とし、これを第６〜８図に示す
ように、２個合ね−Ｕ−で長円形状を形成するように溶
接し、溶接ａ■の余盛りを第７図から第８図に示すよう
Ｇこり゛ラインタ゛で平滑に仕上げ、形状及び溶接部の
確認をし、その後、鏡部材２の開口５に、この長円形部
材を嵌め込み、溶接取付けをしている。Taking a closer look at the conventional manufacturing method for oval ring members, as shown in Figure 3, a strip-shaped material whose width is equal to the width of the IJ ring and whose length is half the ring circumference is produced from a steel plate. cut out. Next, as shown in Fig. 4, this is placed on the press receiving jig 8, and pressed and bent using the press 1 instep jig 7 to form a large shape as shown in Fig. 5. As shown in Figure 8, weld the two pieces together to form an elliptical shape with -U-, and smooth the excess part of weld a with a G-line as shown in Figures 7 and 8. After checking the finish, shape, and welded part, this oval member is fitted into the opening 5 of the mirror member 2 and welded.
［背景技術の問題点］
ところが、その従来の製造方法では次のような問題点が
ある。[Problems with Background Art] However, the conventional manufacturing method has the following problems.
（ア）長円の二つ割り形状のプレスによる曲げ加工にお
ける精度確保、特に曲げ端部、すなわち、第４図へ部の
加工はプレスでは困難であり、この部分の精度確保は困
難である。(A) It is difficult to ensure precision in bending an ellipse in half by pressing, especially the bent end, ie, the bottom part in FIG. 4, and it is difficult to ensure precision in this part.
（イ）従って、これを２個合わせて溶接して組立てたも
のは、溶接歪みも加わって、特に第６図Ｂ部において長
円形リング部材の精度確保が困難である。(a) Therefore, when two pieces are welded together and assembled, welding distortion is also added, making it difficult to ensure the accuracy of the oval ring member, especially in the section B in FIG. 6.
（つ）製造工程が前述のとおり多く、製造所要時間が大
で、製造費が高い。(1) As mentioned above, there are many manufacturing steps, the manufacturing time is long, and the manufacturing cost is high.
（１）鏡部材２の開口５に完成した長円形部材４を嵌め
込み取付ける場合、形状精度不良のため、隙間が大きす
ぎたり、つかえて入らず穴明部の修正切断を必要とする
場合が多い。(1) When fitting and attaching the completed oval member 4 to the opening 5 of the mirror member 2, due to poor shape accuracy, the gap is often too large or the hole cannot be inserted, requiring correction cutting of the hole part. .
（オ）長円形リング補強部材の寸法的種類が多く部材の
管理が繁雑である。(E) There are many dimensional types of oval ring reinforcing members, and management of the members is complicated.
（力）この部材の製造に溶接作業、グラインダ作業が必
要であり、工費増加の原因となっている。(Force) Welding work and grinding work are required to manufacture this member, which causes an increase in construction costs.
［発明の目的］
そこで、この発明の目的は、形状精度の高い長円形リン
グ部材を、少ない工程で容易に製造することができる方
法を提案し、前述の問題点を解決することにある。[Object of the Invention] Therefore, an object of the present invention is to propose a method for easily manufacturing an oval ring member with high shape accuracy in a small number of steps, and to solve the above-mentioned problems.
［発明の構成コ
この目的を達成するため、この発明は、長円形リング部
材の製造方法において、プレスの押し治具と受り治具と
の相対する面が互いに長円形の二つ割り状凹部をなす前
記各治具に、丸パイプから切出された被加工部材を挾み
、該部材をプレスして長円形リング部材を成形すること
を特徴とする。[Structure of the Invention] To achieve this object, the present invention provides a method for manufacturing an oval ring member, in which opposing surfaces of a pushing jig and a receiving jig of a press each form an oval bisected recess. The method is characterized in that a workpiece cut out from a round pipe is held between each of the jigs, and the workpiece is pressed to form an oval ring member.
［発明の実施例］
以下図面に基づいて、この発明の詳細な説明する。第９
〜１２図はこの発明の実施例を示す。[Embodiments of the Invention] The present invention will be described in detail below based on the drawings. 9th
Figures 1 to 12 show embodiments of this invention.
円周長が長円形リングの周長に等しく、厚さがリングの
厚さに等しい丸バイブを、第９図に示すように、軸方向
にリングの幅に等しい間隔で円周方向に切断し、第１０
図に示すように円形リングを製作する。A round vibrator whose circumference is equal to the circumference of the oval ring and whose thickness is equal to the thickness of the ring is cut circumferentially at intervals equal to the width of the ring in the axial direction, as shown in Fig. 9. , 10th
Make a circular ring as shown in the figure.
次に第１１．１２図に示すように、プレスの曲げ加工治
具にこのリング２０をセントする。Next, as shown in FIGS. 11 and 12, this ring 20 is placed in a bending jig of a press.
プレス及び治具は次のように構成されている。The press and jig are constructed as follows.
プレス１０には押し治具１２、定盤又はプレス受台１８
には受け治具１４が取付けである。各治具ば、そのプレ
ス内面を成形すべき長円形リングを二つ割りしたものと
同一形状とした専用治具である。従って被加工リング２
０の円周長とこのプレス治具１２．１４の当り面の展開
長は同一である。The press 10 includes a pushing jig 12 and a surface plate or press pedestal 18.
A receiving jig 14 is attached to the holder. Each jig is a special jig whose press inner surface has the same shape as the oval ring to be molded divided into two. Therefore, the ring to be processed 2
The circumferential length of 0 and the developed length of the contact surface of this press jig 12.14 are the same.
受は治具１４には被加工リング２ｏの位置決めのためス
トッパー１６が取イ］りである。The jig 14 has a stopper 16 for positioning the ring 2o to be processed.
次に、第１３図に示すように、プレスＩＯを作動させて
リング２０をプレスずれば、リングは治具なりに変形し
て、所望の長円形リング部材を形状精度良好な姿で簡単
に形成製作することができる。なお、押し治具１２、受
り治具１４の長円形形状は、プレス完了後の被加工リン
グ部材２ｏのスプリングバンクを見込んだ形状とするこ
とは当然である。Next, as shown in FIG. 13, when the press IO is operated and the ring 20 is pressed and shifted, the ring deforms like a jig and a desired oval ring member is easily formed with good shape accuracy. It can be manufactured. It goes without saying that the elliptical shapes of the pushing jig 12 and the receiving jig 14 take into account the spring bank of the ring member 2o to be processed after pressing is completed.
［発明の効果］
以上説明したように、この発明によれば次のような効果
が得られる。[Effects of the Invention] As explained above, according to the present invention, the following effects can be obtained.
（ア）溶接工程がなく、プレスの１ストロークで製作で
きるため、短時間で長円形リング部材を精度高く製作す
ることができる。(A) Since there is no welding process and it can be manufactured with one stroke of a press, an oval ring member can be manufactured with high precision in a short time.
（イ）この方法による長円形リング部材の形状は治具の
形状で決定されてしまうので、形状精度が高いため、鏡
部材２への取付けは正確に嵌合し、開口部の修正切断の
必要がなくなる。(B) The shape of the oval ring member obtained by this method is determined by the shape of the jig, so the shape accuracy is high, so when it is attached to the mirror member 2, it fits accurately, and there is no need to cut the opening for modification. disappears.
（つ）この部材の製造に、溶接作業及びグラインダによ
る手仕上作業が不要となる。(1) Welding work and manual finishing work using a grinder are not required in manufacturing this member.
（１）この方法によれば、原材料となる管の寸法が標準
化されているため、長円形リング部材の寸法の種類が当
然標準化され、部材の管理が簡単になる。(1) According to this method, since the dimensions of the pipe serving as the raw material are standardized, the types of dimensions of the oval ring member are naturally standardized, and the management of the members is simplified.
（オ）以上述べた効果のため、製造のコストダウンを図
ることができる。(E) Due to the above-mentioned effects, manufacturing costs can be reduced.
第１図、第２図は長円形リング部材の親構造部材への適
用を示し、第１図ば側面図、第２図は断面図である。第
３図乃至第８図は従来の長円形リング部材の製造加工手
順を示す。 第９図乃至第１３図はこの発明による長円
形リング部材の製造加工手順を示す。
図において、１０はプレス、１２は押し治具、１４は受
け治具、２０は被加工リング部材である。
出願人 三菱重工業株式会社
代理人 坂 間 暁
北西 務
石川 新
復代理人 西 郷 義 美
原田幸男
第１図 第２図
第６図 第７図 第８図
第９図 第１０図
第１１図 第１２図
第１３図1 and 2 show the application of the oval ring member to the parent structural member, with FIG. 1 being a side view and FIG. 2 being a sectional view. FIGS. 3 to 8 show the manufacturing process procedure for a conventional oval ring member. FIGS. 9 to 13 show a manufacturing process for an oblong ring member according to the present invention. In the figure, 10 is a press, 12 is a pushing jig, 14 is a receiving jig, and 20 is a ring member to be processed. Applicant: Mitsubishi Heavy Industries, Ltd. Agents: Akira Sakama, Akita Nishiki, Muishikawa, Shinpo Agents: Yoshi Saigo, Yukio Miharada Figure 1 Figure 2 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13
Claims (1)
円形の二つ割り状凹部をなず前記各治具に、リング状被
加工部拐を挾み、該部材をプレスして成形することを特
徴とする長円形リング部材の製造方法。The opposing surfaces of the pushing jig and the receiving jig of the press each form an oval bisected recess, and a ring-shaped workpiece is sandwiched between each of the jigs, and the members are pressed and formed. A method of manufacturing an oval ring member characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12609283A JPS6018241A (en) | 1983-07-13 | 1983-07-13 | Production of oval ring member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12609283A JPS6018241A (en) | 1983-07-13 | 1983-07-13 | Production of oval ring member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6018241A true JPS6018241A (en) | 1985-01-30 |
Family
ID=14926403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12609283A Pending JPS6018241A (en) | 1983-07-13 | 1983-07-13 | Production of oval ring member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6018241A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5548986A (en) * | 1992-04-22 | 1996-08-27 | Structural Metals, Inc. | Method and apparatus for simultaneously forming at least four metal rounds |
| WO2002004166A1 (en) * | 2000-07-12 | 2002-01-17 | Mannesmannröhren-Werke Ag | Method for producing metallic, non-rotationally symmetrical rings with a constant wall thickness over their circumference |
| EP1495818A1 (en) * | 2003-07-08 | 2005-01-12 | Mannesmannröhren-Werke AG | Method and apparatus for manufacturing rotationally asymmetric metallic rings |
| CN102773639A (en) * | 2011-05-13 | 2012-11-14 | 上海外高桥造船有限公司 | Welding table for manhole ring |
| CN102941482A (en) * | 2012-11-23 | 2013-02-27 | 哈尔滨汽轮机厂有限责任公司 | Clamp for flattening and processing high-speed power turbine support ring sleeve for gas turbine |
-
1983
- 1983-07-13 JP JP12609283A patent/JPS6018241A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5548986A (en) * | 1992-04-22 | 1996-08-27 | Structural Metals, Inc. | Method and apparatus for simultaneously forming at least four metal rounds |
| WO2002004166A1 (en) * | 2000-07-12 | 2002-01-17 | Mannesmannröhren-Werke Ag | Method for producing metallic, non-rotationally symmetrical rings with a constant wall thickness over their circumference |
| EP1495818A1 (en) * | 2003-07-08 | 2005-01-12 | Mannesmannröhren-Werke AG | Method and apparatus for manufacturing rotationally asymmetric metallic rings |
| CN102773639A (en) * | 2011-05-13 | 2012-11-14 | 上海外高桥造船有限公司 | Welding table for manhole ring |
| CN102941482A (en) * | 2012-11-23 | 2013-02-27 | 哈尔滨汽轮机厂有限责任公司 | Clamp for flattening and processing high-speed power turbine support ring sleeve for gas turbine |
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