JPH0753774Y2 - Press punching dies - Google Patents
Press punching diesInfo
- Publication number
- JPH0753774Y2 JPH0753774Y2 JP837690U JP837690U JPH0753774Y2 JP H0753774 Y2 JPH0753774 Y2 JP H0753774Y2 JP 837690 U JP837690 U JP 837690U JP 837690 U JP837690 U JP 837690U JP H0753774 Y2 JPH0753774 Y2 JP H0753774Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- die
- punching
- edge portion
- punch
- 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 - Lifetime
Links
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Punching Or Piercing (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案はプレス打抜金型に関し、特に印刷配線板の打抜
金型に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a press punching die, and more particularly to a punching die for a printed wiring board.
従来、この種の打抜型は、切刃部が第７図及び第８図に
示すように一体の切刃部からなるダイ３により構成され
ていた。１はホルダー、２はパンチプレート、４はシェ
ッダーである。Conventionally, a punching die of this type has a die 3 having a cutting edge portion formed of an integral cutting edge portion as shown in FIGS. 7 and 8. Reference numeral 1 is a holder, 2 is a punch plate, and 4 is a shedder.
切刃部11は剪断応力の集中等により、他の単純形状の切
刃部分より著しく摩耗が促進され、この切欠切刃部の耐
久性が金型の寿命を決定づけていた。Due to the concentration of shear stress and the like, the cutting blade portion 11 is significantly worn more than other cutting blade portions having a simple shape, and the durability of the notched cutting blade portion determines the life of the mold.
上述した従来のプレス打抜型は切欠切刃部の摩耗が他の
単純形状の切刃部より進行が早く、型ライフの低下を招
いており、再研削加工費の増大、打抜製品破断面の
悪化に依る品質低下、耐久性の低さに依る総打抜コス
トの増大、という欠点があった。In the above-mentioned conventional press punching die, the wear of the notch cutting edge portion progresses faster than other simple shape cutting edge portions, leading to a decrease in die life, an increase in regrinding processing cost, and a cut surface of the punched product. There are drawbacks such as deterioration of quality due to deterioration and increase of total punching cost due to low durability.
本考案の目的はこのような従来の欠点を解消したプレス
打抜金型を提供することにある。An object of the present invention is to provide a press punching die that eliminates such conventional drawbacks.
前記目的を達成するため、本考案に係るプレス打抜金型
においては、プレスにより打抜製品の形状に打抜き加工
するプレス打抜金型であって、 打抜製品の外形部を打抜く第１の切刃部と、 前記第１の切刃部にて打抜かれる打抜製品の外形一部を
局部的に打抜く交換可能な第２の切刃部との組を有する
ものである。In order to achieve the above-mentioned object, a press punching die according to the present invention is a press punching die for punching into a shape of a punching product by a press. And a replaceable second cutting edge part for locally punching a part of the outer shape of the punched product punched by the first cutting edge part.
次に、本考案の実施例を図を用いて説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
（実施例１） 第１図は本考案の実施例１に係るプレス打抜金型を示す
正面図である。(Embodiment 1) FIG. 1 is a front view showing a press punching die according to Embodiment 1 of the present invention.
図において、本考案に係るプレス打抜金型はホルダー１
に保持されたパンチプレート２と、ダイ外形に打抜く第
１の切刃部3aを有するダイ３と、ダイ３の内側をストロ
ーク方向に摺動するシェッダー４と、断面円形の第２の
切刃部5aを有し、ダイ３に内接してパンチプレート２に
植設された第２の切刃パンチ５とで構成されている。In the drawing, the press punching die according to the present invention is a holder 1
The punch plate 2 held by the die, the die 3 having the first cutting edge portion 3a for punching the outer shape of the die, the shedder 4 sliding in the die 3 in the stroke direction, and the second cutting edge having a circular cross section. It has a portion 5a and is constituted by a second cutting edge punch 5 which is inscribed in the die 3 and is planted in the punch plate 2.
第２図に示すように実施例ではダイ３による第１の切刃
部3aは矩形状に形成してあり、第２の切刃パンチ５によ
る第２の切刃部5aはその半円部分が第１の切刃部3aより
内側に張り出して設けられ、これらにより合成切刃部６
が形成されている。この合成切刃部６は矩形状の第１の
切刃部3aと、半円部分の第２の切刃部5aとを合成した形
状に形成してあり、第３図に示すように、打抜製品10の
外形部10aを合成切刃部６のうち第１の切刃部3aにより
矩形状に打抜き、その外形部10aの一辺の一部10bを合成
切刃部６のうち第２の切刃部5aにより半円状に打抜く。As shown in FIG. 2, in the embodiment, the first cutting edge portion 3a formed by the die 3 is formed in a rectangular shape, and the second cutting edge portion 5a formed by the second cutting edge punch 5 has a semicircular portion. It is provided so as to project inward from the first cutting edge portion 3a, and by these, the synthetic cutting edge portion 6
Are formed. The composite cutting edge portion 6 is formed in a shape in which the rectangular first cutting edge portion 3a and the semicircular second cutting edge portion 5a are combined, and as shown in FIG. The outer shape part 10a of the punched product 10 is punched into a rectangular shape by the first cutting edge part 3a of the synthetic cutting edge part 6, and a part 10b of one side of the outer shape part 10a is cut into the second cutting edge part of the synthetic cutting edge part 6. Punching into a semi-circular shape with the blade portion 5a.
第２の切刃パンチ５で構成される第２の切刃部5aのよう
な半円状の切欠き箇所は応力の集中により、他の単純刃
部より切刃摩耗が促進され易い。よって、ダイ３に使用
されている材料より耐摩耗性、靱性等の諸特性が良好な
材料を選択し使用してある。また、著しい摩耗が発生し
た場合においては、第２の切刃パンチ５を取り替えるこ
とにより、総合的な型ライフの大幅な向上が図れる。Due to the concentration of stress, the cutting edge wear such as the second cutting edge portion 5a formed by the second cutting edge punch 5 is more likely to promote the cutting edge wear than the other simple blade portions. Therefore, a material having various properties such as wear resistance and toughness is selected and used from the material used for the die 3. Further, when significant wear occurs, the second die cutting punch 5 can be replaced to greatly improve the overall die life.
（実施例２） 第４図〜第６図は本考案の実施例２を示す図である。(Embodiment 2) FIGS. 4 to 6 are views showing Embodiment 2 of the present invention.
図において、本実施例はホルダー１に保持されたパンチ
プレート２と、第１の切刃部3aを有するダイと、ダイ３
の内側をストローク方向に摺動するシェッダー４と、第
２の切刃部5aを有し、ダイ３に内接してパンチプレート
２に植設され、ストローク方向に突出した第２の切刃パ
ンチ５とで構成されている。第５図に示すようにダイ３
による矩形状の第１の切刃部3aと、第２の切刃パンチ５
による薄刃状の第２の切刃部5aとにより合成切刃部６が
形成されている。第２の切刃パンチ５は、第４図に示す
ようにストリッパー７とで第１次剪断を行い、外形ポン
チ８で第２次剪断を行い、独立した抜きカス材にし、下
型内部を通過排出させ、ストリッパー７の受け部を不用
にし、下型構造を簡略したことを特徴とする。また従来
技術では切欠部打抜金型と、単純外形打抜金型の２型を
必要としたが、本考案による単一打抜金型で可能にし
た。この第６図に示すように、合成切刃部６により打抜
加工をした場合、第１の切刃部3aにより打抜製品10の外
形部10aは矩形状に打抜かれ、第２の切刃部5aにより打
抜製品10の外形部10aの一辺の一部10bをスリット状に打
抜く。第２の切刃パンチ５で構成される薄刃状の第２の
切刃部5aは応力の集中により、他の単純刃部より切刃摩
耗が促進され易く、ダイ３に使用されている材料より耐
摩耗性、靱性等の諸特性が良好な材料を選択し使用して
ある。また著しい摩耗が発生した場合においては第２の
切刃パンチ５を取り替えることにより、総合的な型ライ
フの大幅な向上が図れる。In the figure, this embodiment shows a punch plate 2 held by a holder 1, a die having a first cutting edge portion 3a, and a die 3
A second cutting edge punch 5 that has a shedder 4 that slides in the stroke direction inside the blade and a second cutting edge portion 5a, is inscribed in the die 3 and is planted in the punch plate 2, and protrudes in the stroke direction. It consists of and. Die 3 as shown in FIG.
The rectangular first cutting edge part 3a and the second cutting edge punch 5
A composite cutting edge portion 6 is formed by the thin blade-shaped second cutting edge portion 5a. As shown in FIG. 4, the second cutting blade punch 5 performs the first shearing with the stripper 7 and the second shearing with the outer shape punch 8 to form an independent scrap material, which passes through the inside of the lower mold. It is characterized in that the lower die structure is simplified by discharging and making the receiving portion of the stripper 7 unnecessary. Further, in the prior art, two types, a notch punching die and a simple outer shape punching die, were required, but the single punching die according to the present invention made it possible. As shown in FIG. 6, when punching is performed by the composite cutting edge portion 6, the outer shape portion 10a of the punched product 10 is punched out in a rectangular shape by the first cutting edge portion 3a, and the second cutting edge is formed. A part 10b on one side of the outer shape part 10a of the punched product 10 is punched into a slit shape by the portion 5a. Due to the concentration of stress, the thin blade-shaped second cutting edge portion 5a formed by the second cutting edge punch 5 is more likely to accelerate the wear of the cutting edge than the other simple blade portions, and the material used for the die 3 is A material having good properties such as wear resistance and toughness is selected and used. Further, when significant wear occurs, the second die punch 5 can be replaced to greatly improve the overall die life.
以上説明したように本考案のプレス打抜型は独立した第
２の切刃部を有することにより、部分的切刃部の容易な
交換及び対摩耗材料の部分的使用を可能にしたことによ
り、再研削加工費の低減、打抜製品の破断面の品質向
上、総打抜コストの低減を実現できるという大きな効果
が得られる。As described above, the press punching die of the present invention has the independent second cutting edge portion, which enables easy replacement of the partial cutting edge portion and partial use of the wear-resistant material. It is possible to achieve great effects such as reduction of grinding cost, improvement of quality of fracture surface of punched product, and reduction of total punching cost.
第１図は本考案の実施例１を示す縦断面図、第２図は同
正面図、第３図は打抜製品を示す図、第４図は本考案の
実施例２を示す縦断面図、第５図は同正面図、第６図は
打抜製品を示す図、第７図は従来の穴外形抜型を示す縦
断面図、第８図は同正面図である。 １……ホルダー、２……パンチプレート ３……ダイ、3a……第１の切刃部 ４……シェッダー、５……第２の切刃パンチ 5a……第２の切刃部、６……合成切刃部 ７……ストリッパー、８……外形ポンチ ９……ホルダー、10……打抜き製品1 is a vertical sectional view showing a first embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a diagram showing a punched product, and FIG. 4 is a vertical sectional view showing a second embodiment of the present invention. FIG. 5 is a front view of the same, FIG. 6 is a view showing a punched product, FIG. 7 is a vertical cross-sectional view showing a conventional hole outer shape punching mold, and FIG. 8 is a front view of the same. 1 ... Holder, 2 ... Punch plate 3 ... Die, 3a ... 1st cutting edge part 4 ... Shedder, 5 ... 2nd cutting edge punch 5a ... 2nd cutting edge part, 6 ... … Synthetic cutting edge part 7 …… Stripper, 8 …… Outer shape punch 9 …… Holder, 10 …… Punched product
Claims (1)
するプレス打抜金型であって、 打抜製品の外形部を打抜く第１の切刃部と、 前記第１の切刃部にて打抜かれる打抜製品の外形一部を
局部的に打抜く交換可能な第２の切刃部との組を有する
ことを特徴とするプレス打抜金型。1. A press punching die for punching into a shape of a punched product by a press, comprising a first cutting edge portion for punching an outer shape portion of the punched product, and the first cutting edge portion. A press-punching die, which has a pair with a replaceable second cutting edge part for locally punching a part of the outer shape of a punched product to be punched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP837690U JPH0753774Y2 (en) | 1990-01-31 | 1990-01-31 | Press punching dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP837690U JPH0753774Y2 (en) | 1990-01-31 | 1990-01-31 | Press punching dies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03101321U JPH03101321U (en) | 1991-10-22 |
| JPH0753774Y2 true JPH0753774Y2 (en) | 1995-12-13 |
Family
ID=31512009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP837690U Expired - Lifetime JPH0753774Y2 (en) | 1990-01-31 | 1990-01-31 | Press punching dies |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753774Y2 (en) |
-
1990
- 1990-01-31 JP JP837690U patent/JPH0753774Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03101321U (en) | 1991-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |