JPH0742843A - Manufacture of coil spring for c-ring - Google Patents
Manufacture of coil spring for c-ringInfo
- Publication number
- JPH0742843A JPH0742843A JP20855393A JP20855393A JPH0742843A JP H0742843 A JPH0742843 A JP H0742843A JP 20855393 A JP20855393 A JP 20855393A JP 20855393 A JP20855393 A JP 20855393A JP H0742843 A JPH0742843 A JP H0742843A
- Authority
- JP
- Japan
- Prior art keywords
- coil spring
- ring
- jacket
- spring
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 description 15
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 101100008049 Caenorhabditis elegans cut-5 gene Proteins 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 2
- 101100008050 Caenorhabditis elegans cut-6 gene Proteins 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229910001293 incoloy Inorganic materials 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はＣリング用コイルバネの
製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a C-ring coil spring.
【０００２】[0002]
【従来の技術】シール用Ｃリングは、断面Ｃ形の円環状
ジャケットにコイルバネを内有させて成るが、このコイ
ルバネは、従来、次のようにして製造されていた。2. Description of the Related Art A C-ring for sealing is formed by internally containing a coil spring in an annular jacket having a C-shaped cross section. This coil spring has conventionally been manufactured as follows.
【０００３】即ち、図６に示すように、金属コイル線ａ
全体を円環状に弯曲させ、小径に形成された一端縁部ｂ
を、他端縁部ｃにねじ込んでラップさせた状態で結合し
て、ループ状のコイルバネを製作していた。That is, as shown in FIG. 6, a metal coil wire a
One end edge b formed in a small diameter by bending the whole into an annular shape
Was joined to the other end edge portion c in a state of being screwed and wrapped so that a loop-shaped coil spring was manufactured.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記コイルバ
ネを備えたバネ入りＣリングを使用する場合、ジャケッ
トの外表面から圧縮を受けると、コイルバネの（ラップ
する）結合部位の剛性が、他の部位と比べて局部的に大
きくなるため、コイルバネの目がジャケットのシール面
である外表面まで転移し、リークが生じる虞があった。However, when the spring-loaded C-ring provided with the above coil spring is used, when the compression is applied from the outer surface of the jacket, the rigidity of the (wrapping) connecting portion of the coil spring is changed to the other portion. Since the size of the coil spring is locally larger than that of the above, there is a possibility that the eyes of the coil spring may be transferred to the outer surface that is the sealing surface of the jacket, causing leakage.
【０００５】そこで本発明は、上記問題点を解決するＣ
リング用コイルバネの製造方法を提供することを目的と
する。Therefore, the present invention solves the above-mentioned problems by C
An object is to provide a method for manufacturing a coil spring for a ring.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記目的を達
成するために、全体形状が１箇所に切り目の有る円環状
の金属コイル線の該切り目を形成する両端部を相互にレ
ーザー溶接して連続螺旋状に結合する。SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention laser-welds both ends of an annular metal coil wire having an overall shape with one cut to form the cut. To form a continuous spiral.
【０００７】[0007]
【作用】本発明によれば、素材の金属コイル線の切り目
の両端部を連続螺旋状に結合して製造するから、この結
合部位はラップせず、該コイルバネを包囲した断面Ｃ形
のジャケットは、その外表面から圧縮された状態で使用
されても、コイルバネの結合部位の剛性が局部的に大き
くならず、全周にわたって均一な圧縮力が維持されて、
コイルバネの目がジャケットの外表面に転移して表れな
い。そのためリークを生じる虞がなくなる。According to the present invention, since both ends of the cut of the metal coil wire of the raw material are continuously spirally joined to each other, the joining portion is not wrapped and a jacket having a C-shaped cross section surrounding the coil spring is formed. , Even when used in a compressed state from its outer surface, the rigidity of the coupling part of the coil spring does not locally increase, and a uniform compression force is maintained over the entire circumference.
The eyes of the coil spring do not appear on the outer surface of the jacket. Therefore, there is no risk of leakage.
【０００８】また、レーザー溶接で金属コイル線の両端
部を結合するから、周囲への熱の影響が少なく、かつ、
溶接バリがほとんど発生せず、バリ取り等の後工程が不
要である。Since both ends of the metal coil wire are joined by laser welding, the influence of heat on the surroundings is small, and
Almost no welding burrs are generated and no post-process such as deburring is required.
【０００９】[0009]
【実施例】以下実施例を示す図面に基づいて本発明に係
るＣリング用コイルバネの製造方法を詳説する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a C-ring coil spring according to the present invention will be described in detail below with reference to the drawings showing the embodiments.
【００１０】図１は金属製Ｃリング１の一実施例の断面
図を示し、このＣリング１は、断面Ｃ形の円環状ジャケ
ット２と、ジャケット２に内有されるコイルバネ３と、
から構成される。FIG. 1 is a sectional view of an embodiment of a metallic C-ring 1. The C-ring 1 has an annular jacket 2 having a C-shaped section, a coil spring 3 contained in the jacket 2,
Composed of.
【００１１】ジャケット２は、金属製であって、アル
ミ、ニッケル、ステンレス等からなる。The jacket 2 is made of metal and is made of aluminum, nickel, stainless steel or the like.
【００１２】また、図２に示すように、コイルバネ３
は、ステンレス，インコネル・インコロイ等の耐熱・耐
蝕合金，スプロン等からなり、ループ状に形成される。As shown in FIG. 2, the coil spring 3
Is made of stainless steel, heat-resistant / corrosion-resistant alloy such as Inconel / Incoloy, and spron, and is formed in a loop shape.
【００１３】このコイルバネ３の製造方法は、全体形状
に於て１箇所に切り目５の有る円環状に弯曲させた金属
コイル線４の該切り目５を形成する両端部６，６を図３
から図４と図２のように突き合わせた状態で、その部位
をレーザー（スポット）溶接Ｗして結合する。In this method of manufacturing the coil spring 3, both ends 6, 6 forming the cut 5 of the metal coil wire 4 curved in an annular shape having a cut 5 at one place in the overall shape are shown in FIG.
4 and FIG. 2, the portions are joined by laser (spot) welding W.
【００１４】このレーザー溶接Ｗには、ＹＡＧ（イット
リウム・アルミニウム・ガーネット）レーザー等を用い
る。切り目６は金属コイル線４の素線を斜めに切断した
傾斜面として、突き合わせてレーザー溶接Ｗする。For this laser welding W, a YAG (yttrium-aluminum-garnet) laser or the like is used. The cut line 6 is an inclined surface obtained by obliquely cutting the element wire of the metal coil wire 4, and is abutted and laser welded W.
【００１５】また、レーザー溶接Ｗの位置は、図２のよ
うに内径側にくるようにし、溶接による結合部位が、両
端部６，６が離れる方向の引張り力を受けにくくすると
共に、Ｃ形ジャケット２にて確実に包まれるようにす
る。Further, the position of the laser welding W is located on the inner diameter side as shown in FIG. 2 so that the joining portion by welding is less likely to receive the pulling force in the direction in which the both end portions 6 and 6 are separated from each other, and the C-shaped jacket. Make sure it is wrapped in 2.
【００１６】このようにして、金属コイル線４を１箇所
にて結環させて結合部位は連続螺旋状となる。In this way, the metal coil wire 4 is connected at one place to form a continuous spiral connecting part.
【００１７】この製法によれば、コイルバネ３の結合部
位はラップしないため、図１に示すバネ入りＣリング１
が使用状態で矢印Ｐ方向の圧縮力を受けたとしてもコイ
ルバネの結合部位は他の部位と同様な弾性変形と均一な
圧縮力が維持でき、コイルバネ３の目がジャケット２の
外表面に転移して表れず、リークを生じる虞がなくな
る。According to this manufacturing method, since the connecting portion of the coil spring 3 is not wrapped, the spring-loaded C ring 1 shown in FIG.
Even if it receives a compressive force in the direction of arrow P in the used state, the joint portion of the coil spring can maintain the same elastic deformation and uniform compressive force as other portions, and the eyes of the coil spring 3 are transferred to the outer surface of the jacket 2. Does not appear and there is no risk of leakage.
【００１８】なお、コイルバネ３は、図５に示すよう
に、断面Ｌ形に前加工されたジャケット２の円筒部に外
嵌され、プレス成形にて（仮想線で図示する如く）ジャ
ケット２に包み込まれる。そのため、コイルバネ３の結
合部位の溶接強度は、上記プレス成形時に形状保持され
る程度で良く、図３から図４に示したような突き合わせ
のレーザー溶接Ｗで十分な強度が得られているといえ
る。なお、切り目６，６を傾斜面とすることによって、
溶接断面積が増加し、レーザー溶接が容易かつ確実とな
る。As shown in FIG. 5, the coil spring 3 is externally fitted to the cylindrical portion of the jacket 2 which is preprocessed to have an L-shaped cross section, and is wrapped in the jacket 2 by press molding (as shown by phantom lines). Be done. Therefore, the welding strength of the joint portion of the coil spring 3 may be such that the shape is maintained during the above-mentioned press forming, and it can be said that sufficient strength is obtained by the butt laser welding W as shown in FIGS. 3 to 4. . By setting the cuts 6 and 6 as inclined surfaces,
The welding cross-section area is increased and laser welding becomes easier and more reliable.
【００１９】[0019]
【発明の効果】本発明は上述の如く構成されているの
で、次に記載するような著大な効果を奏する。Since the present invention is constructed as described above, it has the following great effects.
【００２０】金属コイル線４の両端部６，６を（ラップ
することなく）突き合わせた状態で結合する製法である
から、その製法によるコイルバネ３を備えたバネ入りＣ
リング１の使用時に於て、均一な圧縮力が維持でき、シ
ール機能等が向上する。Since this is a manufacturing method in which both ends 6 and 6 of the metal coil wire 4 are joined together in a state of being abutted (without wrapping), a spring-loaded C provided with a coil spring 3 according to the manufacturing method.
When the ring 1 is used, a uniform compression force can be maintained and the sealing function and the like are improved.
【００２１】レーザー溶接Ｗで金属コイル線４の両端部
６，６を結合するから、周囲への熱の影響が少なく、か
つ、溶接バリがほとんど発生せず、バリ取り等の後工程
が不要で、製造工程が少なくて済む。Since both ends 6, 6 of the metal coil wire 4 are joined by the laser welding W, the influence of heat on the surroundings is small, welding burrs hardly occur, and no post-process such as deburring is required. The number of manufacturing processes is small.
【図１】本発明の製法によるコイルバネを備えたバネ入
りＣリングの一実施例を示す断面側面図である。FIG. 1 is a sectional side view showing an embodiment of a spring-loaded C ring provided with a coil spring according to the manufacturing method of the present invention.
【図２】コイルバネの平面図である。FIG. 2 is a plan view of a coil spring.
【図３】内径側から見た金属コイル線の両端部の溶接前
の側面図である。FIG. 3 is a side view of the both ends of the metal coil wire before welding, as viewed from the inner diameter side.
【図４】内径側から見た金属コイル線の両端部の溶接後
の側面図である。FIG. 4 is a side view after welding both ends of the metal coil wire as viewed from the inner diameter side.
【図５】コイルバネをジャケットに内有させる方法を例
示する断面側面図である。FIG. 5 is a cross-sectional side view illustrating a method of internally incorporating a coil spring in a jacket.
【図６】従来例を示す要部断面図である。FIG. 6 is a cross-sectional view of a main part showing a conventional example.
２ ジャケット ３ コイルバネ ４ 金属コイル線 ５ 切り目 ６ 端部 Ｗ レーザー溶接 2 jacket 3 coil spring 4 metal coil wire 5 cut 6 end W laser welding
Claims (1)
の金属コイル線の該切り目を形成する両端部を相互にレ
ーザー溶接して連続螺旋状に結合することを特徴とする
Ｃリング用コイルバネの製造方法。1. A coil spring for a C-ring, characterized in that both ends of an annular metal coil wire having a notch at one place as a whole shape are laser-welded to each other to be joined in a continuous spiral shape. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20855393A JPH0742843A (en) | 1993-07-30 | 1993-07-30 | Manufacture of coil spring for c-ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20855393A JPH0742843A (en) | 1993-07-30 | 1993-07-30 | Manufacture of coil spring for c-ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0742843A true JPH0742843A (en) | 1995-02-10 |
Family
ID=16558095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20855393A Pending JPH0742843A (en) | 1993-07-30 | 1993-07-30 | Manufacture of coil spring for c-ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016163812A (en) * | 2012-11-07 | 2016-09-08 | 進 中谷 | Elastic coil ring |
-
1993
- 1993-07-30 JP JP20855393A patent/JPH0742843A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016163812A (en) * | 2012-11-07 | 2016-09-08 | 進 中谷 | Elastic coil ring |
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