JPH06150766A - Manufacture of hemispherical electric contact - Google Patents
Manufacture of hemispherical electric contactInfo
- Publication number
- JPH06150766A JPH06150766A JP31570292A JP31570292A JPH06150766A JP H06150766 A JPH06150766 A JP H06150766A JP 31570292 A JP31570292 A JP 31570292A JP 31570292 A JP31570292 A JP 31570292A JP H06150766 A JPH06150766 A JP H06150766A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- hemispherical
- contact material
- electric contact
- manufacturing
- 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.)
- Pending
Links
Landscapes
- Contacts (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、スイッチ、リレー、ブ
レーカー等に用いる電気接点、特に台材上の接点材が半
球状の電気接点を製造する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an electric contact used for a switch, a relay, a breaker, etc., and more particularly, an electric contact having a hemispherical contact material on a base material.
【０００２】[0002]
【従来の技術】従来、半球状電気接点を製造するには、
図８に示すように球状の接点材１を台材２に溶接して、
図９に示すように半球状電気接点３を作成していたが、
この方法では予めアトマイズ法等により球状の接点材１
を作っておかなければならず、また球状の接点材１を１
個づつ台材２上の所定位置に供給しなければならないの
で、取扱いが厄介で精度の高い供給設備を必要とし、さ
らに溶接によって球状の接点材１を半球状に成形するの
で、溶接条件を設定しにくく、一定の溶接条件を設定し
ても得られる半球状の接点材の高さにばらつきが生じ
た。そして球状の接点材１の作成から半球状電気接点３
を製造するまでに時間がかかり過ぎ、生産性が悪かっ
た。2. Description of the Related Art Conventionally, to manufacture a hemispherical electric contact,
Weld the spherical contact material 1 to the base material 2 as shown in FIG.
The hemispherical electrical contact 3 was made as shown in FIG.
In this method, a spherical contact material 1 is previously prepared by an atomizing method or the like.
And the spherical contact material 1
Since it has to be supplied to predetermined positions on the base material 2 one by one, it is difficult to handle and requires highly accurate supply equipment. Further, since the spherical contact material 1 is formed into a hemispherical shape by welding, welding conditions are set. It is difficult to do so, and the height of the hemispherical contact material obtained varies even if a certain welding condition is set. And from the creation of the spherical contact material 1 to the hemispherical electrical contact 3
Took too long to manufacture, and productivity was poor.
【０００３】この為、次のような方法が考えられてい
る。即ち、図10に示すように接点線材４を所要の長さに
切断して図11に示す接点材５を作り、この接点材５を図
12に示すように台材２上に溶接し、この溶接した接点材
５を図13に示すように半球状の接点材６に成形する。Therefore, the following method has been considered. That is, as shown in FIG. 10, the contact wire 4 is cut into a required length to make the contact material 5 shown in FIG.
As shown in FIG. 12, the base material 2 is welded, and the welded contact material 5 is formed into a hemispherical contact material 6 as shown in FIG.
【０００４】然し乍ら、この方法では接点材５を半球状
に成形しても接点材６の上面が平坦になるという問題が
あった。これは接点材５の塑性変形量の範囲を超える成
形である為、上面を球面状にできず、横向きに溶接され
た接点材５の外周の平坦線に沿って圧潰されるからであ
る。However, this method has a problem that the upper surface of the contact material 6 becomes flat even if the contact material 5 is formed into a hemispherical shape. This is because the contact member 5 is formed so as to exceed the range of the amount of plastic deformation, so that the upper surface cannot be made spherical and the contact member 5 is crushed along the flat line on the outer periphery of the contact member 5 welded in the lateral direction.
【０００５】[0005]
【発明が解決しようとする課題】そこで本発明は、接点
材の上面を球面状に精度良く且つ効率良く成形できる半
球状電気接点の製造方法を提供しようとするものであ
る。Therefore, the present invention is to provide a method for producing a hemispherical electrical contact, which enables the upper surface of a contact material to be spherically shaped with high precision and efficiency.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
の本発明の半球状電気接点の製造方法は、接点線材を台
形状に切断して台材に溶接するか又は接点線材の先端部
を台材に溶接して該先端部を台形状に切断し、然る後台
材上の台形状の接点材を半球状に成形することを特徴と
するものである。A method of manufacturing a hemispherical electric contact according to the present invention for solving the above-mentioned problems is achieved by cutting a contact wire into a trapezoidal shape and welding it to the base material, or by cutting the tip of the contact wire. It is characterized in that the tip end is cut into a trapezoidal shape by welding to a basement material, and then the trapezoidal contact material on the basement material is formed into a hemispherical shape.
【０００７】[0007]
【作用】上記のように本発明の半球状電気接点の製造方
法は、台材上に台形状の接点材を設け、これを半球状に
成形するので、接点材は塑性変形量の範囲内の成形とな
り、上面は完全に球面状となり、精度良く且つ効率良く
半球状電気接点が得られる。As described above, according to the method for producing a hemispherical electric contact of the present invention, a trapezoidal contact material is provided on a base material and is formed into a hemispherical shape, so that the contact material is within the range of the plastic deformation amount. As a result of being molded, the upper surface is completely spherical, and a hemispherical electrical contact can be obtained accurately and efficiently.
【０００８】[0008]
【実施例】本発明の半球状電気接点の製造方法の一実施
例を図によって説明すると、図１に示すように線径 0.7
mmのＡｇ−Ｐｄ30％よりなる接点線材４を上辺 0.4mm、
下辺0.75mmの台形状にカッターにて切断して図２に示す
接点材５′を作り、次にこの接点材５′を図３に示すよ
うに幅３mm、長さ８mm、厚さ0.15mmのＢｅ−Ｃｕよりな
る台材２上の一端部に前方より見て台形状になるように
配して溶接し、然る後図４に示すように台材２上の台形
状の接点材５′をプレス成形して半球状の接点材６′と
なし、半球状電気接点７を得た。EXAMPLE An example of a method for producing a hemispherical electric contact of the present invention will be described with reference to the drawings. As shown in FIG.
The contact wire 4 made of Ag-Pd 30% of mm is 0.4mm on the upper side,
A trapezoid with a lower side of 0.75 mm is cut with a cutter to make a contact material 5'shown in Fig. 2. Next, as shown in Fig. 3, this contact material 5'has a width of 3 mm, a length of 8 mm and a thickness of 0.15 mm. It is arranged on one end of the base material 2 made of Be-Cu so as to have a trapezoidal shape when viewed from the front and welded, and thereafter, as shown in FIG. Was press-molded to form a hemispherical contact material 6 ', and a hemispherical electric contact 7 was obtained.
【０００９】次に本発明の半球状電気接点の製造方法の
他の実施例を図によって説明すると、図５に示すように
先端面を斜めに切断しておいた線径 0.7mmのＡｇ−Ｐｄ
30％よりなる接点線材４の先端部を、幅３mm、長さ８m
m、厚さ0.15mmのＢｅ−Ｃｕよりなる台材２上の一端部
に側方より供給して溶接し、次に該先端部を図６に示す
ように前方より見て上辺 0.4mm、下辺0.75mmの台形状と
なるようにカッターにて切断し、然る後図７に示すよう
に台材２上の台形状の接点材５′をプレス成形して半球
状の接点材６′となし、半球状電気接点７を得た。こう
して得た各実施例の半球状電気接点７の半球状の接点材
６′は上面が完全な球面状で、寸法精度が高かった。Next, another embodiment of the method for manufacturing a hemispherical electric contact of the present invention will be described with reference to the drawings. As shown in FIG. 5, the tip surface is cut obliquely to obtain a wire diameter of 0.7 mm Ag-Pd.
The tip of the contact wire 4 consisting of 30% has a width of 3 mm and a length of 8 m.
m and a thickness of 0.15 mm, and is supplied to one end of a base material 2 made of Be-Cu 2 from the side and welded. Next, as shown in FIG. It is cut with a cutter so as to have a trapezoidal shape of 0.75 mm, and then the trapezoidal contact material 5'on the base material 2 is press-molded to form a hemispherical contact material 6'as shown in FIG. , Hemispherical electrical contacts 7 were obtained. The hemispherical contact material 6'of the hemispherical electric contact 7 of each of the examples thus obtained had a perfectly spherical upper surface and had high dimensional accuracy.
【００１０】[0010]
【発明の効果】以上の通り本発明の半球状電気接点の製
造方法によれば、接点材の上面が完全な球面状の寸法精
度の高い半球状電気接点を得ることができる。また、従
来の球状の接点材を作り、これを台材に溶接して半球状
電気接点を製造する方法に比し、効率良く一連の工程で
半球状電気接点を製造できる。しかも本発明の製造方法
は、接点材を台材に溶接する時の状態が側方より見て台
形状であるが、断面円形であるので、接線部にてプロジ
ェクション溶接となるので半球状の接点材の溶接強度が
高く安定したものとなる。As described above, according to the method for manufacturing a hemispherical electric contact of the present invention, a hemispherical electric contact having a perfect spherical upper surface of a contact material and high dimensional accuracy can be obtained. Further, the hemispherical electric contact can be efficiently manufactured in a series of steps as compared with the conventional method of manufacturing a spherical contact material and welding the same to a base material to manufacture the hemispherical electric contact. Moreover, the manufacturing method of the present invention, when the contact material is welded to the base material, has a trapezoidal shape when viewed from the side, but since it has a circular cross section, projection welding is performed at the tangent portion, so a hemispherical contact point is used. The welding strength of the material is high and stable.
【図１】本発明の半球状電気接点の製造方法の一実施例
の工程を示す図である。FIG. 1 is a diagram showing a process of an embodiment of a method for manufacturing a hemispherical electric contact of the present invention.
【図２】本発明の半球状電気接点の製造方法の一実施例
の工程を示す図である。FIG. 2 is a diagram showing steps of an embodiment of a method for manufacturing a hemispherical electric contact of the present invention.
【図３】本発明の半球状電気接点の製造方法の一実施例
の工程を示す図である。FIG. 3 is a diagram showing steps of an embodiment of a method for manufacturing a hemispherical electric contact of the present invention.
【図４】本発明の半球状電気接点の製造方法の一実施例
の工程を示す図である。FIG. 4 is a diagram showing steps of an embodiment of a method for manufacturing a hemispherical electric contact of the present invention.
【図５】本発明の半球状電気接点の製造方法の他の実施
例の工程を示す図である。FIG. 5 is a diagram showing steps of another embodiment of the method for producing a hemispherical electrical contact of the present invention.
【図６】本発明の半球状電気接点の製造方法の他の実施
例の工程を示す図である。FIG. 6 is a diagram showing steps of another embodiment of the method for producing a hemispherical electrical contact of the present invention.
【図７】本発明の半球状電気接点の製造方法の他の実施
例の工程を示す図である。FIG. 7 is a diagram showing steps of another embodiment of the method for producing a hemispherical electrical contact of the present invention.
【図８】従来の半球状電気接点の製造方法の工程を示す
図てある。FIG. 8 is a diagram showing steps of a conventional method for manufacturing a hemispherical electrical contact.
【図９】従来の半球状電気接点の製造方法の工程を示す
図てある。FIG. 9 is a diagram showing steps of a conventional method for manufacturing a hemispherical electrical contact.
【図10】従来考えられていた半球状電気接点の製造方法
の工程を示す図である。FIG. 10 is a diagram showing steps of a conventionally conceived method of manufacturing a hemispherical electrical contact.
【図11】従来考えられていた半球状電気接点の製造方法
の工程を示す図である。FIG. 11 is a diagram showing steps of a conventionally conceived method for manufacturing a hemispherical electrical contact.
【図12】従来考えられていた半球状電気接点の製造方法
の工程を示す図である。FIG. 12 is a diagram showing steps of a conventionally conceived method for manufacturing a hemispherical electrical contact.
【図13】従来考えられていた半球状電気接点の製造方法
の工程を示す図である。FIG. 13 is a diagram showing steps of a conventionally conceived method for manufacturing a hemispherical electrical contact.
２ 台材 ４ 接点線材 ５′ 台形状の接点材 ６′ 半球状の接点材 ７ 半球状電気接点 2 base material 4 contact wire material 5'trapezoidal contact material 6'hemispherical contact material 7 hemispherical electric contact
Claims (1)
するか又は接点線材の先端部を台材に溶接して該先端部
を台形状に切断し、然る後台材上の台形状の接点材を半
球状に成形することを特徴とする半球状電気接点の製造
方法。1. A contact wire rod is cut into a trapezoidal shape and welded to the base material, or a tip portion of the contact wire rod is welded to a base material and the tip portion is cut into a trapezoidal shape, and then a base on the base material. A method of manufacturing a hemispherical electrical contact, characterized in that a shaped contact material is formed into a hemispherical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31570292A JPH06150766A (en) | 1992-10-30 | 1992-10-30 | Manufacture of hemispherical electric contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31570292A JPH06150766A (en) | 1992-10-30 | 1992-10-30 | Manufacture of hemispherical electric contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06150766A true JPH06150766A (en) | 1994-05-31 |
Family
ID=18068525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31570292A Pending JPH06150766A (en) | 1992-10-30 | 1992-10-30 | Manufacture of hemispherical electric contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06150766A (en) |
-
1992
- 1992-10-30 JP JP31570292A patent/JPH06150766A/en active Pending
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