JPS626886B2 - - Google Patents
Info
- Publication number
- JPS626886B2 JPS626886B2 JP57018332A JP1833282A JPS626886B2 JP S626886 B2 JPS626886 B2 JP S626886B2 JP 57018332 A JP57018332 A JP 57018332A JP 1833282 A JP1833282 A JP 1833282A JP S626886 B2 JPS626886 B2 JP S626886B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- outer periphery
- small diameter
- end plate
- corner
- 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
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 230000001788 irregular Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000009966 trimming Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000750 progressive effect Effects 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
- B21D22/20—Deep-drawing
- B21D22/21—Deep-drawing without fixing the border of the blank
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】
この発明は、順送型を用いて端板付きの筒体を
形成するようにした筒体の製造方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a cylindrical body using a progressive die to form a cylindrical body with end plates.
ビデオ装置のDDシリンダに接続される筒体
（モータヨークと通称される）は、第９図に示す
ように、筒部１の一方の端部に端板２を一体に設
けている。 A cylindrical body (commonly called a motor yoke) connected to a DD cylinder of a video apparatus has an end plate 2 integrally provided at one end of a cylindrical part 1, as shown in FIG.
ビデオ装置に使用される上記の筒体は、きわめ
て高い寸法精度が要求され、外周の隅部の丸み
は、筒体の厚み寸法より小さな寸法とする必要が
ある。 The above-described cylindrical body used in a video device is required to have extremely high dimensional accuracy, and the roundness of the corners of the outer periphery must be smaller than the thickness of the cylindrical body.
ところで、上記のような筒体を絞り加工によつ
て製造することはきわめて困難である。すなわ
ち、円形のブランクを絞り加工して筒状体を形成
すると、上記筒状体の外周隅部に、上記ブランク
の板厚以上の丸みが生じ、要求に応じた製品を得
ることができない。 By the way, it is extremely difficult to manufacture the above-mentioned cylindrical body by drawing. That is, when a cylindrical body is formed by drawing a circular blank, the outer peripheral corners of the cylindrical body have roundness that is greater than the thickness of the blank, making it impossible to obtain a product that meets the requirements.
そのため、筒体の製造は、専ら鍛造や切削によ
る加工法を採用しており、いずれの製造も製作に
非常に手間がかかり、コストを高める要因になつ
ている。 Therefore, the cylindrical body is manufactured using processing methods such as forging and cutting, and both methods require a great deal of time and effort, leading to increased costs.
ところで、前記プレス加工による筒体の製造法
は、他の製造法に比較して、製品コストの面で、
きわめて有利である。そこで、発明者は、プレス
加工による筒体の製造法について研究したとこ
ろ、絞り加工後の筒状体を軸方向に加圧すると丸
みの大きな隅部が外径方向に変形することに着目
し、この筒状体を再度絞り加工することによつ
て、隅部の丸みを小さくすることを発見し、本発
明を完成するに至つた。 By the way, compared to other manufacturing methods, the method for manufacturing cylinders by press working is lower in terms of product cost.
It is extremely advantageous. Therefore, the inventor researched a method for manufacturing a cylindrical body by press working, and noticed that when a cylindrical body after drawing was pressurized in the axial direction, the rounded corners deformed in the outer diameter direction. It was discovered that the roundness of the corners could be reduced by drawing this cylindrical body again, and the present invention was completed.
この発明の目的は、外周隅部に小さな丸みをも
つ端板付き筒体をプレス加工によつて能率よく製
造することができるようにした製造方法を提供す
るにある。 An object of the present invention is to provide a manufacturing method that enables efficient manufacturing of a cylindrical body with end plates having small roundness at the outer peripheral corners by press working.
上記の目的を達成するために、この発明は、絞
り加工した筒状体をトリミング加工して不規則な
端縁を取り除いたのち、この筒状体を天押しプレ
ス加工により軸方向に加圧して筒状体の隅肉部を
筒部の外周より外方に突出させ、しかるのち絞り
プレス加工により外周を絞つて外周隅部に小さな
丸みを形成するようにしたものである。 In order to achieve the above object, the present invention trims a drawn cylindrical body to remove irregular edges, and then presses the cylindrical body in the axial direction by top pressing. The fillet portion of the cylindrical body is made to protrude outward from the outer periphery of the cylindrical portion, and then the outer periphery is squeezed by drawing press processing to form a small roundness at the outer periphery corner.
以下、この発明の実施例を添付図面に基づいて
説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図に示す円形のブランク１０は、第２図に
示す絞りポンチ１１と、絞り孔１２′を有するダ
イ１２とで絞り加工される。この加工によつて筒
状体１３が形成され、その筒状体１３の端板１４
の外周隅部１５には丸みがつき、上記丸みの半径
は、ブランク１０の板厚より大きくなつている。
また、筒状体１３の端縁１６は不規則であり、こ
の不規則な端縁は次のトリミング加工によつて取
り除かれる。 A circular blank 10 shown in FIG. 1 is drawn using a drawing punch 11 shown in FIG. 2 and a die 12 having a drawing hole 12'. Through this processing, the cylindrical body 13 is formed, and the end plate 14 of the cylindrical body 13 is
The outer peripheral corner 15 of the blank 10 is rounded, and the radius of the roundness is larger than the thickness of the blank 10.
Further, the edge 16 of the cylindrical body 13 is irregular, and this irregular edge is removed by the subsequent trimming process.
第３図は、トリミング加工後の筒状体１３を示
し、この筒状体１３は、次に、第４図に示すよう
に、段付ポンチ１７の小径軸部１８の外側に被せ
られ、上記ポンチ１７と対応するダイ１９によつ
て天押しプレス加工される。 FIG. 3 shows the cylindrical body 13 after trimming, and this cylindrical body 13 is then placed over the outside of the small diameter shaft portion 18 of the stepped punch 17 as shown in FIG. Top press processing is performed using the punch 17 and the corresponding die 19.
ここで、前記小径軸部１８の外径寸法は、第３
図に示す筒状体１３の内径寸法に対して同径に形
成され、その先端面は平坦になつている。このた
め、小径軸部１８の外側に筒状体１３を被せる
と、小径軸部１８の外周隅部１８′が筒状体１３
の内周隅部に形成された丸みの付け根に当接し、
小径軸部１８の先端面と筒状体１３の端板１４内
面間に所要の間隙２０が確保される。一方筒状体
１３のトリミングされた端縁１６′と段付ポンチ
１７の段部２１との間に間隙２２が形成され、こ
の間隙２２の高さ寸法は、小径軸部１８の上側に
設けられた前記間隙２０の高さ寸法に対して小さ
くなつている。 Here, the outer diameter dimension of the small diameter shaft portion 18 is the third
It is formed to have the same diameter as the inner diameter of the cylindrical body 13 shown in the figure, and its distal end surface is flat. Therefore, when the cylindrical body 13 is placed on the outside of the small diameter shaft part 18, the outer peripheral corner 18' of the small diameter shaft part 18
It touches the base of the roundness formed at the inner corner of the
A required gap 20 is secured between the tip surface of the small diameter shaft portion 18 and the inner surface of the end plate 14 of the cylindrical body 13. On the other hand, a gap 22 is formed between the trimmed end edge 16' of the cylindrical body 13 and the stepped portion 21 of the stepped punch 17, and the height dimension of this gap 22 is set at the upper side of the small diameter shaft portion 18. The height dimension of the gap 20 is smaller than the height dimension of the gap 20.
このため、小径軸部１８の外側に筒状体１３を
被せた状態で、この小径軸部１８もしくはダイ１
９を移動させてダイ１９に形成した孔２３の上面
で筒状体１３の端板１４の上面全体を軸方向に加
圧すると、筒状体１３の端縁１６′は段部２１に
当接して下方向への移動が制限されるため、筒状
体１３の外周隅部１５が径方向に変形し、筒状体
１３の上部に外方に突出する隅肉部２４を形成す
ることができる。 Therefore, in a state where the cylindrical body 13 is placed on the outside of the small diameter shaft part 18, this small diameter shaft part 18 or the die 1
9 and presses the entire top surface of the end plate 14 of the cylindrical body 13 in the axial direction with the top surface of the hole 23 formed in the die 19, the end edge 16' of the cylindrical body 13 comes into contact with the step 21. Since the downward movement is restricted, the outer peripheral corner 15 of the cylindrical body 13 is deformed in the radial direction, and a fillet 24 protruding outward can be formed at the upper part of the cylindrical body 13. .
天押しプレス加工によつて形成された筒状体１
３の高さ寸法は、天押しプレス加工前の筒状体１
３（第３図に示す筒状体）の高さ寸法に対して当
然小さくなり、この筒状体１３は、次に、第６図
および第７図に示す絞り用金型によつて絞り加工
される。 Cylindrical body 1 formed by top press processing
The height dimension of 3 is the height of the cylindrical body 1 before top press processing.
3 (the cylindrical body shown in FIG. 3), and this cylindrical body 13 is then drawn by a drawing die shown in FIGS. 6 and 7. be done.
絞り用金型は、ダイ２５に形成した絞り孔２６
の内径寸法を天押しプレス加工された筒状体１３
の外径寸法より小径になり、その絞り孔２６の開
口縁２７に丸みをつけている。一方絞り孔２６内
に挿入する絞りポンチ２８は段付きに形成され、
その小径軸部２９の外径寸法は上記筒状体１３の
内径寸法に対して若干小径になり、かつ長さ寸法
は筒状体１３の高さ寸法より僅かに大きくなつて
いる。この段付絞りポンチ２８を筒状体１３の内
側に位置させ絞り孔２６内に筒状体１３押し込む
ことにより、隅肉部２５を有する筒状体１３の外
周が絞り成形され、第７図に示すように、外周隅
部１５′に小さな丸みついた筒体Ｔを形成するこ
とができる。 The drawing die has a drawing hole 26 formed in the die 25.
The cylindrical body 13 is top pressed to have an inner diameter dimension of
The opening edge 27 of the aperture hole 26 is rounded. On the other hand, the throttle punch 28 inserted into the throttle hole 26 is formed with steps,
The outer diameter of the small diameter shaft portion 29 is slightly smaller than the inner diameter of the cylindrical body 13, and the length thereof is slightly larger than the height of the cylindrical body 13. By positioning this stepped drawing punch 28 inside the cylindrical body 13 and pushing the cylindrical body 13 into the throttle hole 26, the outer periphery of the cylindrical body 13 having the fillet portion 25 is drawn and formed, as shown in FIG. As shown, a small rounded cylinder T can be formed at the outer peripheral corner 15'.
なお、第６図において、絞り孔２６内に挿入し
たゲス３０は、絞り孔２６内に挿入した筒状体１
３で押し上げられるようになつている。 Note that in FIG.
It is designed to be pushed up at 3.
上記のようにして形成された筒体Ｔは、必要に
応じて仕上げ成形され、かつ芯円度などの修正加
工が行なわれる。第８図は、その仕上げプレス工
程を示し、段付きの絞り成形用ポンチ３１の外側
に被せられた筒体Ｔは、ダイ３２に設けた絞り成
形孔３３内に挿入されて外周および内周が仕上げ
られ、かつ歪みが除去される。第９図は仕上げプ
レス加工後の筒体Ｔを示している。 The cylindrical body T formed as described above is subjected to finishing molding and correction processing such as center circularity is performed as necessary. FIG. 8 shows the finishing press process, in which the cylinder T placed on the outside of the stepped drawing punch 31 is inserted into the drawing hole 33 provided in the die 32, and the outer and inner peripheries are Finished and distortion removed. FIG. 9 shows the cylindrical body T after finishing press working.
因みに、厚み2.6mm、外径寸法87mmの絞り用鉄
板を第１工程の絞り加工により筒状体を形成し
て、外径寸法50.5mm、内周隅部の曲率半径６mmの
筒状体を形成したところ、その高さ寸法は、32mm
であり、隅部の厚みは2.2mmであつた。そこで、
この筒状体をトリミングして高さ寸法28mmの筒状
体を形成し、この筒状体を第２工程（第５図）の
天押しプレス加工を施して高さ寸法25mmの筒状体
を形成したところ、外周隅部が外方向に突出し、
内周隅部に半径１mmの丸みのついたものが得られ
た。次に、この天押しプレス加工後の筒状体を第
３工程（第６図および第７図）の絞り加工によ
り、外径寸法49.9mm、内径寸法45.3mmの筒体を形
成したところ、その高さ寸法は26mmとなり、外周
隅部に半径１mmの丸みのついた筒体を得ることが
できた。 Incidentally, a steel plate for drawing with a thickness of 2.6 mm and an outer diameter of 87 mm is formed into a cylindrical body by drawing in the first step, and a cylindrical body with an outer diameter of 50.5 mm and a radius of curvature of the inner corner corner of 6 mm is formed. As a result, its height was 32mm.
The thickness of the corner was 2.2 mm. Therefore,
This cylindrical body is trimmed to form a cylindrical body with a height of 28 mm, and this cylindrical body is subjected to top press processing in the second step (Fig. 5) to form a cylindrical body with a height of 25 mm. When formed, the outer peripheral corner protrudes outward,
A piece with a radius of 1 mm rounded at the inner corner was obtained. Next, the cylindrical body after top pressing was subjected to drawing in the third step (Figures 6 and 7) to form a cylindrical body with an outer diameter of 49.9 mm and an inner diameter of 45.3 mm. The height dimension was 26 mm, and we were able to obtain a rounded cylinder with a radius of 1 mm at the outer corner.
以上のように、この発明は、通常の絞り加工に
よつて形成された筒状体をトリミングして不規則
な端縁を取り除き、次にこの筒状体を天押しプレ
ス加工により軸方向に加圧して、外周隅部を径方
向に圧縮変形させ、これを絞りプレス加工して外
周を絞るようにしたので、外周隅部に小さな丸み
をもつ端板付き筒体を形成することができ、しか
も各部の工程がプレス加工であるため、製造が容
易であり、生産性の向上に効果を挙げることがで
きる。 As described above, the present invention trims a cylindrical body formed by ordinary drawing to remove irregular edges, and then axially presses this cylindrical body by top pressing. By compressing and deforming the outer periphery corner in the radial direction, the outer periphery was compressed and deformed by drawing press processing to narrow the outer periphery, so it was possible to form a cylindrical body with end plates with small roundness at the outer periphery corner. Since the process of each part is press working, manufacturing is easy and productivity can be improved.
図面はこの発明に係る製造方法の加工工程図を
示し、第１図はブランクの正面図、第２図は絞り
加工を示す断面図、第３図は同上の絞り加工によ
つて形成された筒状体のトリミング後の状態を示
す断面図、第４図は天押しプレス加工工程におい
てトリミングした筒状体をポンチに被せた状態の
断面図、第５図は天押しプレス加工の途中を示す
断面図、第６図は絞り加工工程の絞り途中を示す
断面図、第７図は同上の絞り完了後を示す断面
図、第８図は絞り成形工程の絞り完了後を示す断
面図、第９図は以上の工程によつて得られた筒体
の断面図である。
１３……筒状体、１７……段付ポンチ、２２…
…間隙、２６……絞り孔、２８……段付絞りポン
チ。
The drawings show processing steps of the manufacturing method according to the present invention, in which Fig. 1 is a front view of a blank, Fig. 2 is a cross-sectional view showing the drawing process, and Fig. 3 is a cylinder formed by the same drawing process. A cross-sectional view showing the state of the shaped body after trimming, Figure 4 is a cross-sectional view of the trimmed cylindrical body placed on a punch in the top-pressing process, and Figure 5 is a cross-sectional view showing the middle of the top-pressing process. Figure 6 is a cross-sectional view showing the middle of drawing in the drawing process, Figure 7 is a cross-sectional view showing the same after drawing is completed, Figure 8 is a cross-sectional view showing after drawing is completed in the drawing process, and Fig. 9 is a cross-sectional view of the cylinder obtained through the above steps. 13...Cylindrical body, 17...Stepped punch, 22...
...Gap, 26...Aperture hole, 28...Stepped aperture punch.
Claims (1)
体をトリミング加工して不規則な端縁を取り除
き、その筒状体の内側に段付ポンチの小径軸部を
位置させて上記小径軸部の平坦な先端面と筒状体
の端板内面との間に所要寸法の間隙を形成した状
態で上記筒状体の端板全体を軸方向に加圧する天
押しプレス加工を施して筒状体の隅肉部を円筒部
の外径方向に突出させ、この天押しプレス加工後
の筒状体を絞り加工して外周を絞り込んだことを
特徴とする端板を備えた筒体の製造方法。1 Trim the cylindrical body after drawing with rounded corners on the outer periphery to remove irregular edges, and position the small diameter shaft of the stepped punch inside the cylindrical body to make the above small diameter. A top pressing process is applied to press the entire end plate of the cylindrical body in the axial direction while forming a gap of the required size between the flat end surface of the shaft and the inner surface of the end plate of the cylindrical body. Manufacture of a cylindrical body with an end plate characterized in that the fillet part of the cylindrical body protrudes in the direction of the outer diameter of the cylindrical part, and the cylindrical body after top pressing is subjected to drawing to narrow the outer periphery. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57018332A JPS58135732A (en) | 1982-02-04 | 1982-02-04 | Manufacture of cylindrical body provided with end plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57018332A JPS58135732A (en) | 1982-02-04 | 1982-02-04 | Manufacture of cylindrical body provided with end plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58135732A JPS58135732A (en) | 1983-08-12 |
| JPS626886B2 true JPS626886B2 (en) | 1987-02-14 |
Family
ID=11968681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57018332A Granted JPS58135732A (en) | 1982-02-04 | 1982-02-04 | Manufacture of cylindrical body provided with end plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58135732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0350953Y2 (en) * | 1985-06-28 | 1991-10-30 | ||
| CN105537350A (en) * | 2008-09-18 | 2016-05-04 | 住友电气工业株式会社 | Pressed product and press working method |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH054898Y2 (en) * | 1986-06-26 | 1993-02-08 | ||
| US5996391A (en) * | 1997-03-31 | 1999-12-07 | Exedy Corporation | Method of forming a corner portion of a torque converter by press working |
| IT1297735B1 (en) * | 1997-11-28 | 1999-12-20 | Attrezzeria Mv & C Snc | DRAWING AND COINING MOLD FOR THE MANUFACTURE OF METALLIC CONTAINERS AND SIMILAR |
| IT1297736B1 (en) * | 1997-11-28 | 1999-12-20 | Attrezzeria Mv & C Snc | DRAWING AND COINING MOLD FOR MANUFACTURING METALLIC AND SIMILAR CONTAINERS |
| JP2006159232A (en) * | 2004-12-06 | 2006-06-22 | Tsutsumi Industries Inc | Method for forming cross section of sheet metal in press-working method |
| JP4879588B2 (en) * | 2006-01-19 | 2012-02-22 | 新日本製鐵株式会社 | Metal plate press molding method for automobile parts having a tensile strength of 440 MPa or more for suppressing spring back |
| KR101295252B1 (en) * | 2013-01-10 | 2013-08-12 | 세일메탈주식회사 | Mold-induced edge molding device mold-induced edge molding device |
| US11253899B2 (en) * | 2018-03-01 | 2022-02-22 | Alireza Mardani | Production of reinforced double-layer parts |
-
1982
- 1982-02-04 JP JP57018332A patent/JPS58135732A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0350953Y2 (en) * | 1985-06-28 | 1991-10-30 | ||
| CN105537350A (en) * | 2008-09-18 | 2016-05-04 | 住友电气工业株式会社 | Pressed product and press working method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58135732A (en) | 1983-08-12 |
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