JP2559836B2 - Die cutting method for sheet metal parts - Google Patents
Die cutting method for sheet metal partsInfo
- Publication number
- JP2559836B2 JP2559836B2 JP1006931A JP693189A JP2559836B2 JP 2559836 B2 JP2559836 B2 JP 2559836B2 JP 1006931 A JP1006931 A JP 1006931A JP 693189 A JP693189 A JP 693189A JP 2559836 B2 JP2559836 B2 JP 2559836B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet metal
- die
- cutting method
- punch
- metal parts
- 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
Description
本発明は端子板のような板金部品の型抜き方法に関す
る。The present invention relates to a die cutting method for sheet metal parts such as terminal boards.
ブレーカーのような機器に設けられる端子板として、
第３図に示すように、側縁から薄肉の突起11を一体に突
設した端子板１がある。この端子板１は、機器の器体２
に装着されるにあたり、溝12として形成されている端子
板配設部の両側壁に、側縁から突設している突起11を食
い込ませたり、蟻溝型の端子板配設部に端子板１を圧入
で押し込んだりすることで、抜け止め及び不要な動きの
防止を行う。 このような薄肉の突起を備えた端子板を板金部品とし
て形成するにあたり、従来は薄肉の突起を形成するため
のプレスを行い、その後、型抜きで切断していた。As a terminal board provided in equipment such as a breaker,
As shown in FIG. 3, there is a terminal plate 1 in which a thin projection 11 is integrally projected from the side edge. This terminal board 1 is a device body 2
When it is mounted on the terminal plate, the projections 11 protruding from the side edges are made to bite into both side walls of the terminal plate arrangement portion formed as the groove 12, or the terminal plate is arranged in the dovetail type terminal plate arrangement portion. By pressing 1 in by pressing it in, it prevents it from coming off and prevents unnecessary movement. In forming a terminal plate having such thin projections as a sheet metal part, conventionally, a press for forming the thin projections was performed, and thereafter, die cutting was performed.
このために、製作に手間がかかるのはもちろん、プレ
スと抜きとの２種の金型が必要となるために、金型に要
する費用も多くなっている。 本発明はこのような点に鑑み為されたものであり、そ
の目的とするところは薄肉の突起を備えた板金部品を容
易に製作することができる板金部品の型抜き方法を提供
するにある。For this reason, not only is it time-consuming to manufacture, but also two types of dies, a press and a punch, are required, and the cost required for the dies is also high. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method of die-cutting a sheet metal part that can easily manufacture a sheet metal part having a thin protrusion.
【課題を解決するための手段】 しかして本発明は、一部のクリアランスを他の部分よ
り大きくしたダイとポンチとを用いて板金部品を型抜き
して上記クリアランスが大の部分で板金部品に薄肉の突
起を形成することに特徴を有している。 ［作用］ 本発明によれば、ダイとポンチとにおけるクリアラン
スの大きい部分で板金部品は引きちぎられるようにな
り、その結果、薄肉の突起が板金部品に形成される。 ［実施例］ 以下本発明を図示の実施例に基づいて詳述すると、第
１図中の３はダイ、４はポンチであり、この両者によっ
て端子板１が素材金属板から打ち抜き形成されるのであ
るが、ここにおけるダイ３とポンチ４との間のクリアラ
ンスは各部で一定ではなく、その一部がポンチ４側の内
壁面に形成された微小な溝40によって、わずかに大きく
されている。 この種のものにおけるクリアランスの値は、素材金属
板の硬度にもよるが、通常、板厚の３％程度に保たれる
が、溝40を設けたところでは板厚の５％程度の値を持つ
ものとするのである。 このように形成されたダイ３とポンチ４とで素材金属
板を打ち抜く時、クリアランスの小さい部分では、素材
金属板がきれいに切断されるものの、クリアランスがわ
ずかに大きくされたところでは、第２図に示すように、
素材金属板から端子板１が引きちぎられるようになるた
めに、打ち抜かれた端子板１はその引きちぎられたとこ
ろにおいて、薄肉の突起11を備えたものとなり、打ち抜
きのためのダイ３とポンチ４だけで、また打ち抜き工程
だけで、薄肉の突起11を一体に備えた端子板１を形成す
ることができるものである。Means for Solving the Problems However, according to the present invention, a sheet metal part is die-cut using a die and a punch in which a part of the clearance is larger than that of the other part, and the sheet metal part is made into a sheet metal part in the large clearance. It is characterized by forming thin projections. [Operation] According to the present invention, the sheet metal part is torn off at a portion having a large clearance between the die and the punch, and as a result, a thin projection is formed on the sheet metal part. [Embodiment] The present invention will be described in detail below with reference to the illustrated embodiment. In FIG. 1, 3 is a die, 4 is a punch, and the terminal plate 1 is formed by punching from a raw metal plate by both of them. However, the clearance between the die 3 and the punch 4 here is not constant in each part, and a part thereof is slightly increased by the minute groove 40 formed on the inner wall surface on the punch 4 side. The clearance value of this type is usually maintained at about 3% of the plate thickness, although it depends on the hardness of the material metal plate. However, when the groove 40 is provided, the clearance value should be about 5% of the plate thickness. Have it. When the material metal plate is punched out by the die 3 and the punch 4 formed in this way, the material metal plate is cut cleanly in a portion with a small clearance, but when the clearance is slightly increased, as shown in FIG. As shown
Since the terminal plate 1 is torn from the material metal plate, the punched terminal plate 1 has thin projections 11 at the part to be punched, and only the die 3 and the punch 4 for punching. In addition, the terminal plate 1 integrally provided with the thin projection 11 can be formed only by the punching step.
以上のように本発明においては、打ち抜きのための金
型だけで薄肉の突起を備えた板金部品を形成することが
できるとともに、突起を形成するための専用工程を必要
としないものであり、板金部品の製作が容易となるだけ
でなく、金型費用の削減及び金型の小型化も図ることが
できる。As described above, according to the present invention, it is possible to form a sheet metal part having a thin protrusion by using only a die for punching, and a special process for forming the protrusion is not required. Not only can the parts be easily manufactured, but the cost of the mold and the size of the mold can be reduced.
第１図は本発明一実施例にかかるポンチとダイの破断斜
視図、第２図は同上の断面図、第３図は板金部品である
端子板の斜視図であって、１は端子板、３はダイ、４は
ポンチ、11は突起を示す。FIG. 1 is a cutaway perspective view of a punch and a die according to an embodiment of the present invention, FIG. 2 is a sectional view of the same, and FIG. 3 is a perspective view of a terminal plate which is a sheet metal part, where 1 is a terminal plate, 3 is a die, 4 is a punch, and 11 is a protrusion.
Claims (1)
したダイとポンチとを用いて板金部品を型抜きして上記
クリアランスが大の部分で板金部品に薄肉の突起を形成
することを特徴とする板金部品の型抜き方法。1. A die and a punch having a part of clearance larger than that of another part are used to die-cut the sheet metal part to form a thin projection on the part of the sheet metal having the large clearance. Die-cutting method for sheet metal parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1006931A JP2559836B2 (en) | 1989-01-14 | 1989-01-14 | Die cutting method for sheet metal parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1006931A JP2559836B2 (en) | 1989-01-14 | 1989-01-14 | Die cutting method for sheet metal parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02187221A JPH02187221A (en) | 1990-07-23 |
| JP2559836B2 true JP2559836B2 (en) | 1996-12-04 |
Family
ID=11651994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1006931A Expired - Lifetime JP2559836B2 (en) | 1989-01-14 | 1989-01-14 | Die cutting method for sheet metal parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2559836B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60180799A (en) * | 1984-02-03 | 1985-09-14 | 松下電器産業株式会社 | Press punching method of printed wiring board |
-
1989
- 1989-01-14 JP JP1006931A patent/JP2559836B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02187221A (en) | 1990-07-23 |
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