JP2592022B2 - Burring part processing method - Google Patents
Burring part processing methodInfo
- Publication number
- JP2592022B2 JP2592022B2 JP8176692A JP8176692A JP2592022B2 JP 2592022 B2 JP2592022 B2 JP 2592022B2 JP 8176692 A JP8176692 A JP 8176692A JP 8176692 A JP8176692 A JP 8176692A JP 2592022 B2 JP2592022 B2 JP 2592022B2
- Authority
- JP
- Japan
- Prior art keywords
- punch
- die
- outer peripheral
- burring
- work
- 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 - Fee Related
Links
- 238000003672 processing method Methods 0.000 title claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 30
- 238000004080 punching Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 4
- 238000007665 sagging Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Punching Or Piercing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、厚手の金属板のバーリ
ング部の基部に生じるダレと先端の不規則な面を追加工
する加工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing method for additionally processing sagging generated at the base of a burring portion of a thick metal plate and an irregular surface at the tip.
【０００２】[0002]
【従来の技術】バーリング部の形状を所望形状にするた
め追加工する技術は、従来公知であり、例えば特開昭６
３−２６０６３１号に示されている。該技術は、薄板よ
りなるワークを、ばねで押圧されるダイとストッパとで
挾持し、このダイとストッパ中を通るパンチでバーリン
グ部を成形し、ワーク、ダイ、ストッパ及びパンチを一
体とした状態で、バーリング部をこれに対向して定置し
た加圧子に押しつけて追加工するものである。2. Description of the Related Art Techniques for performing additional processing to obtain a desired shape of a burring portion are conventionally known.
No. 3-260631. In this technique, a work made of a thin plate is sandwiched between a die pressed by a spring and a stopper, and a burring portion is formed by a punch passing through the die and the stopper, and the work, the die, the stopper and the punch are integrated. Then, the burring portion is pressed against a fixed pressing element opposed thereto to perform additional processing.
【０００３】しかし、この従来技術においては、ワーク
を保持する手段としてばね圧による摩擦力を用いるた
め、バーリング部修正時にワークの横ずれが生じ易く、
ワークが厚手で追加工のために大きい加圧力を要すると
きはこの傾向が著しく、ワーク外周に対するバーリング
の位置が不正確になり易い。However, in this prior art, the frictional force by spring pressure is used as a means for holding the work, so that the work tends to be laterally displaced when the burring portion is corrected.
This tendency is remarkable when the work is thick and requires a large pressing force for additional processing, and the position of the burring relative to the outer periphery of the work tends to be inaccurate.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、ワークのプ
レート部の外周形状に対して正確な位置に、基部のダレ
がなく、かつ先端形状が正しく成形されたバーリング部
を形成することを課題とする。SUMMARY OF THE INVENTION It is an object of the present invention to form a burring portion in which the base portion has no sagging and the tip shape is correctly formed at an accurate position with respect to the outer peripheral shape of the work plate portion. And
【０００５】[0005]
【課題を解決するための手段】本発明における前記課題
は、請求項１に記載した、バーリング加工を施したワー
クの外周を、外周抜きパンチと外周抜きダイで打抜く外
周抜き工程と、該外周抜き工程の途中又終了後外周抜き
ダイでワークを拘束しながら、外周抜きパンチとこれに
対向するリング部をもつ型面でバーリング部を型押しす
ることを特徴とする手段、又は請求項２に記載した、バ
ーリング加工及び外周打抜きを施したワークを外周ダイ
に入れて外周を拘束し、上型パンチと、これに対向する
リング部をもつ型面でバーリング部を型押しすることを
特徴とする手段によって解決される。The object of the present invention is to provide an outer peripheral punching step of punching the outer periphery of a burring-processed work with an outer peripheral punch and an outer peripheral die according to claim 1; 3. The method according to claim 2, wherein the burring portion is stamped with a die surface having an outer peripheral punch and a ring portion facing the outer peripheral punch while restraining the work with an outer peripheral punching die during or after the punching step. The work described above, which has been subjected to burring and perforation punching, is placed in a perimeter die to restrain the perimeter, and the burring portion is stamped with a die surface having an upper die punch and a ring portion opposed thereto. Solved by means.
【０００６】[0006]
【作用】前記第１の手段によれば、ワークの外周を打抜
きながらバーリング部を追加工するので、ワークの外周
は拘束され、ワーク外周に対するバーリング部の位置は
一定に維持される。また第２の手段においては、打抜き
済みのワークを外周ダイに供給し、該外周ダイで保持し
ながらバーリング部の追加工をするので、ワーク外周に
対するバーリング部の位置は一定に維持される。そし
て、これらの追加工により、バーリング部の基部に形成
されていたダレの曲率半径は縮小され、先端形状も所定
形状になる。According to the first means, since the burring portion is additionally processed while punching the outer periphery of the work, the outer periphery of the work is restrained, and the position of the burring portion with respect to the outer periphery of the work is kept constant. In the second means, the punched work is supplied to the outer peripheral die, and the additional processing of the burring portion is performed while being held by the outer peripheral die. Therefore, the position of the burring portion with respect to the outer periphery of the work is kept constant. By these additional operations, the radius of curvature of the sag formed at the base of the burring portion is reduced, and the shape of the tip becomes a predetermined shape.
【０００７】[0007]
【実施例】以下図面を参照して本発明の実施例を説明す
る。図１〜３は第１実施例を示すもので、図１（ａ）は
加工前、（ｂ）は加工後のワークＷ1を示し、（ａ）の
ワークＷ1は、前工程のバーリング加工時に、プレート
１から立ち上るバーリング部２の基部に、大きい曲率半
径Ｒのダレ３が形成され、バーリング部２の先端４に不
規則な面が形成されており、プレート１の外周面５は未
加工である。このワークＷ1は、図２，３の金型１０
で、図１（ａ）に示す角部３ａ、平坦な先端４ａ、正確
な外周面５ａを形成するように加工される。Embodiments of the present invention will be described below with reference to the drawings. 1-3 show a first embodiment, FIG. 1 (a) prior to processing, (b) shows the workpiece W 1 after machining, the workpiece W 1 of the (a) is burring of the previous step Occasionally, a droop 3 having a large radius of curvature R is formed at the base of the burring portion 2 rising from the plate 1, an irregular surface is formed at the tip 4 of the burring portion 2, and the outer peripheral surface 5 of the plate 1 is unprocessed. It is. The workpiece W 1 is the mold 10 of FIG. 2 and 3
Then, it is processed so as to form the corner 3a, the flat tip 4a, and the accurate outer peripheral surface 5a shown in FIG.
【０００８】金型１０は、ワークＷ1のプレート１を切
断して外周面を形成するための、外周抜きパンチ１１と
外周抜きダイ１２を備え、外周抜きパンチ１１の中心に
パイロットピン１３が突出固定されている。外周抜きダ
イ１２の内部には、ワークＷ1を受けて上昇させるため
のリフタ１４が上下動自在に挿入され、該リフタ１４の
中心凹部１４ａの底面１４ｂに着座できるようにノック
アウト１５が挿入され、該ノックアウト１５のリング部
１５ａがリフタ１４とパイロットピン１３で形成される
環状空間に臨み、ばね１６で上向きに加圧されている。
そして、外周抜きパンチ１１の外周を囲み、該パンチ１
１から打抜後の切屑７を離脱させるストリッパ１７が設
けられる。The mold 10 includes an outer punching die 11 and an outer punching die 12 for cutting the plate 1 of the work W 1 to form an outer peripheral surface. A pilot pin 13 projects from the center of the outer punching punch 11. Fixed. Inside the outer peripheral punching die 12, the lifter 14 for raising undergoing workpiece W 1 is inserted vertically movably, knockout 15 to allow sitting on the bottom surface 14b of the central recess 14a of the lifter 14 is inserted, The ring portion 15 a of the knockout 15 faces an annular space formed by the lifter 14 and the pilot pin 13 and is pressed upward by a spring 16.
Then, the outer periphery of the outer peripheral punch 11 is surrounded by the punch 1.
1 is provided with a stripper 17 for detaching the chip 7 after punching.
【０００９】外周抜きダイ１２上にワークＷ1を置き、
外周抜きパンチ１１を下降させると、まずパイロットピ
ン１３がバーリング部２の穴に進入し、ワークＷ1が位
置決めされる。次いで図３に示すようにパンチ１１とダ
イ１２により外周抜きが行なわれ、このときリフタ１４
を上昇させてノックアウト１５のリング部１５ａをバー
リング部２の先端４に圧接させると、ばね１６が圧縮さ
れ、ノックアウト１５は、凹部１４ａの底面１４ｂに着
座した状態になる。The work W 1 is placed on the outer peripheral die 12,
When lowering the outer peripheral punching punch 11, first pilot pin 13 enters the hole of the burring portion 2, the workpiece W 1 is positioned. Next, as shown in FIG. 3, the outer periphery is punched by the punch 11 and the die 12, and at this time, the lifter 14
When the ring portion 15a of the knockout 15 is pressed against the tip 4 of the burring portion 2, the spring 16 is compressed, and the knockout 15 is seated on the bottom surface 14b of the concave portion 14a.
【００１０】そして、リフタ１４をパンチ１１に向けて
加圧しながらパンチ１１と共に下降させると、パンチ１
１とダイ１２による外周抜きが行われ、同時にダイ１２
でワークＷ1の横ずれが防止され、バーリング部２は、
凹部１４ａの内周面とガイドピン１３で形成される環状
空間内で、リング部１５ａによってパンチ１１の下面に
向けて押され、該環状空間を埋めるように型押しされて
ダレ３が減少され、同時に先端４が平坦にされる。加工
後パンチ１１を退去させ、リフタ１４を上昇させると共
にノックアウト１５をばね１６で弾発させることにより
製品を排出することができる。When the lifter 14 is lowered together with the punch 11 while pressing the lifter 14 toward the punch 11, the punch 1
1 and the die 12 are removed.
In lateral of the workpiece W 1 is prevented, burring portion 2,
In the annular space formed by the inner peripheral surface of the concave portion 14a and the guide pin 13, the ring portion 15a pushes the lower surface of the punch 11 and is embossed so as to fill the annular space. At the same time, the tip 4 is flattened. After the processing, the punch 11 is withdrawn, the lifter 14 is raised, and the knockout 15 is resiliently ejected by the spring 16, so that the product can be discharged.
【００１１】前記においてリフタ１４、ノックアウト１
５による加工は、パンチ１１とダイ１２による外周抜き
中に行われるが、タイミングをずらせて、外周抜き終了
直後、ワークＷ1をダイ１２に保持させた状態で行って
もよい。In the above, the lifter 14, the knockout 1
Processing by 5 is carried out in the outer peripheral vent by the punch 11 and the die 12, by shifting the timing immediately after the outer peripheral vent termination may be carried out the work W 1 while being held in the die 12.
【００１２】次に図４〜６に示す第２実施例において
は、ワークＷ2は、外周面５がすでに所定の寸法、形状
に打抜かれており、バーリング部２のダレ３と先端４が
ワークＷ1と同じく未加工である。[0012] Next, in the second embodiment shown in FIGS. 4-6, the workpiece W 2 is already predetermined dimensions peripheral surface 5, are punched to shape, sagging 3 and tip 4 of the burring portion 2 and a work W 1 to be the same raw.
【００１３】第２実施例の金型２０は、上型パンチ２１
と外周ダイ２２を備えるが、該パンチ２１とダイ２２は
打抜き作用は行わない。そして、第１実施例と同じパイ
ロットピン１３、リフタ１４、ノックアウト１５が図示
のように設けられている。The mold 20 of the second embodiment includes an upper punch 21
And the outer peripheral die 22, but the punch 21 and the die 22 do not perform the punching action. The same pilot pin 13, lifter 14, and knockout 15 as in the first embodiment are provided as shown.
【００１４】パンチ２１とリフタ１４を図５に示す退去
位置に後退させ、外周ダイ２２内にワークワークＷ2を
挿入して、図６に示すようにパンチ２１を下げ、かつリ
フタ１４を上昇させることにより、リフタ１４の凹部１
４ａとパンチ１３の外周面で形成される環状空間内で、
上型パンチ２１とリング部１５ａによる型押しが行なわ
れ、ダレ３と先端４が追加工されて所定の製品が得られ
る。[0014] The punch 21 and the lifter 14 is retracted to a retreat position shown in FIG. 5, by inserting the workpiece workpiece W 2 to the outer peripheral die 22, lower punch 21 as shown in FIG. 6, and raise the lifter 14 Thus, the concave portion 1 of the lifter 14
In the annular space formed by the outer surface of the punch 4a and the punch 13,
Pressing is performed by the upper die punch 21 and the ring portion 15a, and the sagging 3 and the tip 4 are additionally processed to obtain a predetermined product.
【００１５】[0015]
【発明の効果】以上のように本発明は、請求項１、２の
いずれの場合においても、ワークの横ずれがダイによっ
て防止された状態でバーリング部の型押しが行われるか
ら、正確な位置にダレのない正確な形状のバーリング部
が成形でき、かつ該バーリング部に過大な力が作用しな
いから、亀裂や巻き込み等の損傷も生じない効果を有す
る。As described above, according to the present invention, in any one of the first and second aspects, the burring portion is pressed in a state in which the lateral displacement of the work is prevented by the die. Since a burring portion having an accurate shape without sagging can be formed and an excessive force does not act on the burring portion, there is an effect that damage such as cracking or entanglement does not occur.
【図１】 第１実施例のワークで（ａ）は加工前、
（ｂ）は加工後FIG. 1 (a) is a work of a first embodiment before machining.
(B) after processing
【図２】 同実施例の加工装置の断面図FIG. 2 is a sectional view of the processing apparatus of the embodiment.
【図３】 同加工装置の加工中の断面図FIG. 3 is a cross-sectional view of the processing apparatus during processing.
【図４】 第２実施例のワークで（ａ）は加工前、
（ｂ）は加工後FIG. 4 (a) shows a workpiece of a second embodiment before machining.
(B) after processing
【図５】 同実施例の加工装置の断面図FIG. 5 is a sectional view of the processing apparatus of the embodiment.
【図６】 同加工装置の加工中の断面図FIG. 6 is a sectional view of the processing apparatus during processing.
Ｗ1Ｗ2 ワーク ２ バーリング部 ３ ダレ ４ 先端 ５ 外周面 １１ 外周抜きパンチ １２ 外周抜きダイ １４ リフタ １５ ノックアウト １５ａ リング部 ２１ 上型パンチ ２２ 外周ダイW 1 W 2 Work 2 Burring portion 3 Sagging 4 Tip 5 Outer peripheral surface 11 Outer peripheral punch 12 Outer peripheral die 14 Lifter 15 Knockout 15a Ring portion 21 Upper die 22 Outer peripheral die
Claims (2)
を、外周抜きパンチと外周抜きダイで打抜く外周抜き工
程と、該外周抜き工程の途中又終了後外周抜きダイでワ
ークを拘束しながら、外周抜きパンチとこれに対向する
リング部をもつ型面でバーリング部を型押しすることを
特徴とする、バーリング部の加工方法。1. An outer peripheral punching step of punching the outer periphery of a burring-processed work with an outer peripheral punch and an outer peripheral punching die. A method of processing a burring portion, comprising: stamping a burring portion with a die surface having a punch and a ring portion facing the punch.
ワークを外周ダイに入れて外周を拘束し、上型パンチ
と、これに対向するリング部をもつ型面でバーリング部
を型押しすることを特徴とする、バーリング部の加工方
法。2. A method in which a burring-processed and outer-perforated workpiece is placed in an outer peripheral die to restrain the outer periphery, and the burring portion is embossed by a mold surface having an upper die punch and a ring portion opposed thereto. The processing method of the burring portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8176692A JP2592022B2 (en) | 1992-04-03 | 1992-04-03 | Burring part processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8176692A JP2592022B2 (en) | 1992-04-03 | 1992-04-03 | Burring part processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05277573A JPH05277573A (en) | 1993-10-26 |
| JP2592022B2 true JP2592022B2 (en) | 1997-03-19 |
Family
ID=13755586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8176692A Expired - Fee Related JP2592022B2 (en) | 1992-04-03 | 1992-04-03 | Burring part processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592022B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6748149B2 (en) * | 2018-06-13 | 2020-08-26 | フタバ産業株式会社 | Bending member manufacturing method |
| KR20250060553A (en) * | 2023-10-26 | 2025-05-07 | 삼성에스디아이 주식회사 | Secondary battery case manufacturing device |
-
1992
- 1992-04-03 JP JP8176692A patent/JP2592022B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05277573A (en) | 1993-10-26 |
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