JPS58132324A - Formation for flange of casing for axialflow hydraulic machine - Google Patents
Formation for flange of casing for axialflow hydraulic machineInfo
- Publication number
- JPS58132324A JPS58132324A JP1161382A JP1161382A JPS58132324A JP S58132324 A JPS58132324 A JP S58132324A JP 1161382 A JP1161382 A JP 1161382A JP 1161382 A JP1161382 A JP 1161382A JP S58132324 A JPS58132324 A JP S58132324A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- forming
- flange
- roller
- casing
- 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
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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
- B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
- B21D19/046—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of tubular products
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は軸流々体機械、例えば軸流ファン用ケーシング
の７ランジ成形加工方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seven-lunge forming process for a casing for an axial fluid machine, such as an axial fan.
軸流ファン用ケーシングは第１図に示すように、円１１
Ｍ１ｉｌの両端にフランジ２が設けられていルコとは周
知のとおシである。このようなケーシングは従来、第２
図に示すように円筒部１とフランジ部２をそれぞれ別個
に製作し、この両者１．２を組合せて溶接によシ一体に
結合して製作されてい九＼めコスト高となる恐れがあっ
た。As shown in Figure 1, the casing for an axial fan has a circle 11.
Flanges 2 are provided at both ends of M1il, which is a well-known method. Traditionally, such casings
As shown in the figure, the cylindrical part 1 and the flange part 2 are manufactured separately, and the two parts 1 and 2 are combined and welded together to form a single body, which may result in higher costs. .
そこで上記コストの低減をはかるため、現在は第３図に
示すように７２ンジ部２を円筒部１と一体に成形加工し
ている。このように７２ンジ部２を円筒部１と一体成形
するには、第４図に示す専用機械により製作する。すな
わち第５図に示すように薄板１！ｌを円筒状に湾曲して
周方向の両端部を互に突き合せ、この突き合せ端部を溶
接ビード１ｂにより一体に溶接して円筒体１を形成する
。Therefore, in order to reduce the above-mentioned cost, the 72-inch portion 2 is currently formed integrally with the cylindrical portion 1 as shown in FIG. In order to integrally mold the 72-inch part 2 with the cylindrical part 1 in this way, it is manufactured using a special machine shown in FIG. That is, as shown in FIG. 5, thin plate 1! 1 is curved into a cylindrical shape, both ends in the circumferential direction are abutted against each other, and the abutted ends are welded together with a weld bead 1b to form the cylindrical body 1.
ついで第４図に示すように円筒体ｌの長手方向の両端部
、すなわちフランジ成形部りの外側に、その外周面に受
はロー２３の外周面を接触させると共に、内側に成形ロ
ーラ４を設け、拡開可能に設けられだ外チャック６およ
び外チャック６の内側に設けられ、かつ駆動源７によシ
軸方向に移動可能に、しかも回転可能に設けられた内チ
ャック５を円筒体１内に挿入する。Next, as shown in FIG. 4, the outer circumferential surface of the row 23 is brought into contact with the outer circumferential surface of both ends of the cylindrical body l in the longitudinal direction, that is, the outer circumferential surface of the flange forming part, and the forming roller 4 is provided inside. , an outer chuck 6 provided so as to be expandable, and an inner chuck 5 provided inside the outer chuck 6 and movable in the axial direction and rotatable by a drive source 7, inside the cylindrical body 1. Insert into.
次に内チャック５を介して外チャック６を円筒体１の内
周面に密着させた後に、前記内、外チャック５．６およ
び円筒体１を駆動源７によシ回転させ、同時に受はロー
ラ３を円筒体１の外周面に押圧すると共に、成形ロー２
４を半径方向に移動させることによりフランジ部２を加
工して成形する。この場合、受はローラ３および成形ロ
ー″）４が接触する円筒体ｌの溶接部ｔの溶接ビード１
ｂは、第６図に示すように円筒体１の外周面からの盛シ
上ｐ高さ電を排除するために、グラインダーなどで加工
仕上げする必要があるので、多大の加工々数を要する欠
点がおった。Next, after bringing the outer chuck 6 into close contact with the inner circumferential surface of the cylindrical body 1 via the inner chuck 5, the inner and outer chucks 5.6 and the cylindrical body 1 are rotated by the drive source 7, and at the same time the receiver is rotated. While pressing the roller 3 against the outer peripheral surface of the cylindrical body 1, the forming roller 2
4 in the radial direction, the flange portion 2 is processed and formed. In this case, the receiver is the weld bead 1 of the weld part t of the cylindrical body l that is in contact with the roller 3 and the forming row'') 4.
b. As shown in FIG. 6, in order to eliminate the build-up height electric current from the outer peripheral surface of the cylindrical body 1, it is necessary to process and finish it with a grinder or the like, so it requires a large number of machining steps. There was a thunderstorm.
また受はロー２３を円筒体１に押圧して加工すると、成
形後のフランジ２の７ランジ乎ｆｆ１２１１ハ第７図に
示すように高さＨだけ反るので、平面精度を出すために
成形ロー２４に多大の圧力を付加してしごき成形しなけ
ればならないから、７２ンジ平面２鳳の板厚は大幅に減
少する欠点があった。In addition, when the receiver is processed by pressing the row 23 against the cylindrical body 1, the flange 2 after forming will be warped by a height H as shown in Figure 7. Since it is necessary to apply a large amount of pressure to the 24 and iron it, the thickness of the 72-inch plane 2-ho is significantly reduced.
本発明は上記欠点を解消し、円筒体（ケーシング）の剛
性および７ランジの平面精度の向上をはかることを目的
とする亀ので、フランジの成形加工時に、受はローラの
外周面を円筒体端部に接触させず、成形ロー−）Ｋよシ
円筒体端部を屈折して受はロー２の端面に接合させるこ
とを特徴とするものである。The purpose of the present invention is to eliminate the above-mentioned drawbacks and improve the rigidity of the cylindrical body (casing) and the flatness accuracy of the seven flanges. The holder is characterized in that the end of the cylindrical body is bent along the forming row (K) so that the receiver is joined to the end surface of the row (2) without contacting the end surface of the row (2).
以下本発明の一実施例を図面について説明する。An embodiment of the present invention will be described below with reference to the drawings.
第８図において、１は従来例と同様に薄板を円筒状に湾
曲し、その周方向端部を溶接ビード１ｂによシ溶接して
一体に結合され九円筒体、２は円筒体１と一体に成形加
工された７２ンジ部、３は円筒体１の外側面（溶接ビー
ド１ｂを含む）と接触しない程度の適宜距＠ｈを保つよ
うに七ットされ九受はロー２．４は円筒体ｌの内側に半
径方向く移動可能に設けられた成形ローラで、この成形
ローラ２の移動によシ円筒体１の端Ｓ（７ランジ成形部
）を受はローラ３の端面３ａに沿って屈折させて前記７
ランジ部２を成形する。その他の構成は第４図に示す従
来例と同一であるから説明および図面を省略する。In FIG. 8, 1 is a nine-cylindrical body made by bending a thin plate into a cylindrical shape and welding the circumferential ends of the thin plate to a welding bead 1b as in the conventional example, and joined together into a nine-cylindrical body, and 2 is integral with the cylindrical body 1. The 72-inch part 3 is cut so as to maintain an appropriate distance @h to avoid contact with the outer surface of the cylindrical body 1 (including the weld bead 1b). A forming roller is provided inside the body l so as to be movable in the radial direction.As the forming roller 2 moves, the end S (7 flange forming part) of the cylindrical body 1 is held along the end surface 3a of the roller 3. Refract the above 7
Molding the lunge portion 2. The rest of the configuration is the same as the conventional example shown in FIG. 4, so explanations and drawings will be omitted.
上記のように受はローラ３を円筒体ｌの外周面と接触し
ない程度の適宜距離りを保って設置した理由は、受はロ
ー２３を多種多様の形状および状態のもとにおいて種々
実験を行った結果より、円筒体ｌの端部を屈折して７ラ
ンジを成形する場合、円筒体１の剛性によシ、その外周
面を受はローラ３を介して支持する必要はなく、屈折後
の７２ンジを平面状に形成するのに必要であることが判
明し九からである。The reason why Uke installed the roller 3 at an appropriate distance so as not to come into contact with the outer peripheral surface of the cylindrical body l as described above is because Uke conducted various experiments with the roller 23 in a wide variety of shapes and conditions. Based on the results, when the end of the cylindrical body 1 is bent to form a 7-lunge, due to the rigidity of the cylindrical body 1, there is no need to support its outer peripheral surface via the roller 3, and the It was found that this was necessary to form 72 inches into a flat surface.
本実施例は上記のような構成からなシ、円筒体１を保持
兼回転機構（図示せず）を介して回転させながら、成形
ロー−）４を半径方向に移動させれば、円筒体１の端部
を受はローラ３の端面３ｍに沿って屈折させることによ
シ、７ランジ部２を成形加工することができる。その７
２７２部２の平面精度は第９図に示すように、その平面
の反シ寸法Ｈは０．５■以下となり、第７図に示す従来
例の反シ寸法Ｈが０．５〜１．５ ｗｍ程度であるに比
べて著しく縮小させることができる。したがって後工程
におけるフランジ部の穴加工に際して平面の修正仕上げ
を省略することが可能である。This embodiment does not have the above-mentioned configuration, but if the forming row 4 is moved in the radial direction while rotating the cylindrical body 1 via a holding/rotating mechanism (not shown), the cylindrical body 1 can be moved in the radial direction. By bending the end of the support along the end surface 3m of the roller 3, the 7 langes 2 can be formed. Part 7
As for the plane accuracy of the 272 part 2, as shown in FIG. 9, the vertical dimension H of the plane is 0.5 square or less, and the horizontal dimension H of the conventional example shown in FIG. It is possible to significantly reduce the size compared to about wm. Therefore, it is possible to omit correction and finishing of the plane when drilling holes in the flange portion in a subsequent process.
また溶接ビードの盛上シを削シ取る部分の溶接は、溶は
込みを十分にしなければならないから裏波溶接を要する
。ところが本実施例によれば、円筒体１の端部（１，部
分）の溶接ビードの盛上シ部を残してもよいから、前記
４８部分の＃接ビードの仕上げ加工を省略することがで
きる。Furthermore, the welding of the part where the weld bead's raised area is removed requires uranami welding because sufficient penetration is required. However, according to this embodiment, the raised part of the weld bead at the end (part 1) of the cylindrical body 1 may be left, so the finishing process of the # contact bead in the 48 parts can be omitted. .
以上説明したように本発明によれば、７ランジ成形前の
円筒体の溶接部仕上げ加工を大幅に減少させるばかシで
なく、フランジ成形時の成形加圧力を軽減することによ
り、平面精度の向上、修正工数の削減および加工々数の
低減をはかることができる。また溶接ビードの盛土シ部
をフランジ部近くまで残すことにより、円筒体の剛性の
向上および７ランジ成形時の円筒体の割れをなくするこ
とができる。As explained above, according to the present invention, the flatness accuracy is improved by reducing the forming pressure during flange forming, instead of significantly reducing the finishing work of the welded part of the cylindrical body before flange forming. , it is possible to reduce the number of correction man-hours and the number of machining operations. Furthermore, by leaving the embankment portion of the weld bead close to the flange portion, it is possible to improve the rigidity of the cylindrical body and to eliminate cracks in the cylindrical body during seven-lung forming.
第１図は従来の細流ファン用ケーシングの断面図、第２
図は第１図のＡ部の詳細図、第３図は現在の７ランジの
構成図、第４図は従来方法による７ランジ成形加工状態
を示す説明断面図、第５図および第６図は円筒体の形成
説明図および板継ぎ溶接部の説明図、第７図は従来の７
ランジ部の形状説明図、第８図は本発明方法による７ラ
ンジ成形加工状態を示す説明図、第９図は本発明に係わ
る７ランジ部の形状説明図である。
１・・・円筒体、２・・・７ランジ、３・・・受ケロー
２．３・・・受はロー２端面、４・・・成形ロー２゜纂
１ 図
￥３３ 図 ｖｉ ４ 図
ｖ！ｉ テ図
４
１４１−
′ＩｆＪ７ 図
第ｑ図Figure 1 is a cross-sectional view of a conventional trickle fan casing;
The figure is a detailed view of part A in Figure 1, Figure 3 is a configuration diagram of the current 7-lunge, Figure 4 is an explanatory sectional view showing the state of 7-lunge forming by the conventional method, and Figures 5 and 6 are An explanatory diagram of the formation of the cylindrical body and an explanatory diagram of the plate joint welding part, Fig. 7 is a conventional 7
FIG. 8 is an explanatory diagram showing the state of the seven-lunge forming process according to the method of the present invention, and FIG. 9 is an explanatory diagram of the shape of the seven-lunge portion according to the present invention. 1...Cylindrical body, 2...7 langes, 3...Receiver 2.3...Receiver is row 2 end face, 4...Forming row 2゜coil 1 Figure ￥33 Figure vi 4 Figure v ! i Te Figure 4 141- 'IfJ7 Figure q
Claims (1)
を成形し、この円筒体の端部の内、外側に成形ローラと
受はロー２をそれぞれ設け、この両ローラによりフラン
ジを一体に成形加工する７ツンジ成形加工方法において
、７２ンジの成形加工時に、受はローラの外周面を円筒
体端部の外周面に接触させず、成形ローラによシ円筒体
端部を屈折して受はローラの端面に接合させることを特
徴とする軸流身体機械用ケークングの７ランジ成形加工
方法。A thin plate is curved into a cylindrical shape and then welded in the longitudinal direction to form a cylindrical body.A forming roller and a receiving row 2 are provided on the inner and outer ends of this cylindrical body, respectively, and the flange is integrated with these rollers. In the 7-zinge forming method, when forming 72-zinges, the receiver does not bring the outer circumferential surface of the roller into contact with the outer circumferential surface of the end of the cylindrical body, but bends the end of the cylindrical body by the forming roller to receive the receiver. This is a seven-lunge forming processing method for caking for axial flow body machines, which is characterized by joining to the end face of a roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1161382A JPS58132324A (en) | 1982-01-29 | 1982-01-29 | Formation for flange of casing for axialflow hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1161382A JPS58132324A (en) | 1982-01-29 | 1982-01-29 | Formation for flange of casing for axialflow hydraulic machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58132324A true JPS58132324A (en) | 1983-08-06 |
| JPS633693B2 JPS633693B2 (en) | 1988-01-25 |
Family
ID=11782758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1161382A Granted JPS58132324A (en) | 1982-01-29 | 1982-01-29 | Formation for flange of casing for axialflow hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58132324A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0530162A1 (en) * | 1991-07-22 | 1993-03-03 | Formtech Innovation Hb | Method and means for folding of brims |
| JP2002327908A (en) * | 2001-04-26 | 2002-11-15 | Noritz Corp | Combustion device |
| JP2009542993A (en) * | 2006-06-29 | 2009-12-03 | エス・ケイ・エフ・ユウ・エス・エイ・インコーポレイテッド | Improved large diameter seal |
| CN102553998A (en) * | 2012-01-18 | 2012-07-11 | 湖州南浔振建机电成套设备有限公司 | Flanging device |
| CN104826908A (en) * | 2015-04-13 | 2015-08-12 | 唐山远望幕墙装饰工程有限公司 | Curling machine |
| CN108213143A (en) * | 2018-03-14 | 2018-06-29 | 西安交通大学 | A kind of design method of the progressive flanging forming tool heads of cylinder |
| CN110087351A (en) * | 2019-05-17 | 2019-08-02 | 冼远程 | A kind of heating device and the method that rolls limit is processed on the heating device |
| CN110293173A (en) * | 2019-07-03 | 2019-10-01 | 厦门捷讯汽车零部件有限公司 | Two-sided flange and the accurate drawing forming mold of inner hole and moulding process |
-
1982
- 1982-01-29 JP JP1161382A patent/JPS58132324A/en active Granted
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0530162A1 (en) * | 1991-07-22 | 1993-03-03 | Formtech Innovation Hb | Method and means for folding of brims |
| JP2002327908A (en) * | 2001-04-26 | 2002-11-15 | Noritz Corp | Combustion device |
| JP2009542993A (en) * | 2006-06-29 | 2009-12-03 | エス・ケイ・エフ・ユウ・エス・エイ・インコーポレイテッド | Improved large diameter seal |
| CN102553998A (en) * | 2012-01-18 | 2012-07-11 | 湖州南浔振建机电成套设备有限公司 | Flanging device |
| CN104826908A (en) * | 2015-04-13 | 2015-08-12 | 唐山远望幕墙装饰工程有限公司 | Curling machine |
| CN104826908B (en) * | 2015-04-13 | 2016-08-31 | 唐山远望幕墙装饰工程有限公司 | Beading machine |
| CN108213143A (en) * | 2018-03-14 | 2018-06-29 | 西安交通大学 | A kind of design method of the progressive flanging forming tool heads of cylinder |
| CN108213143B (en) * | 2018-03-14 | 2019-04-09 | 西安交通大学 | A kind of design method of the progressive flanging forming tool heads of cylinder |
| CN110087351A (en) * | 2019-05-17 | 2019-08-02 | 冼远程 | A kind of heating device and the method that rolls limit is processed on the heating device |
| CN110293173A (en) * | 2019-07-03 | 2019-10-01 | 厦门捷讯汽车零部件有限公司 | Two-sided flange and the accurate drawing forming mold of inner hole and moulding process |
| CN110293173B (en) * | 2019-07-03 | 2022-01-18 | 厦门捷讯汽车零部件有限公司 | Double-side flanging and inner hole accurate stretching forming die and forming process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS633693B2 (en) | 1988-01-25 |
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