JPH02307690A - Joining method for bellows for piezoelectric element - Google Patents
Joining method for bellows for piezoelectric elementInfo
- Publication number
- JPH02307690A JPH02307690A JP1130439A JP13043989A JPH02307690A JP H02307690 A JPH02307690 A JP H02307690A JP 1130439 A JP1130439 A JP 1130439A JP 13043989 A JP13043989 A JP 13043989A JP H02307690 A JPH02307690 A JP H02307690A
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- piezoelectric element
- joining
- bellows body
- seal member
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000001678 irradiating effect Effects 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 230000004907 flux Effects 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は圧電素子用ベローズの接合方法に関し、特に、
蛇腹状ベローズ本体と、シール部材とを接合するに好適
な圧電素子用ベローズの接合方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for joining bellows for piezoelectric elements, and in particular,
The present invention relates to a method for joining a bellows for a piezoelectric element suitable for joining a bellows body and a sealing member.
従来、ベローズ本体とシール部材とを接合する場合、第
２図〜第４図に示されるように行なっている。Conventionally, when joining a bellows main body and a sealing member, it is done as shown in FIGS. 2 to 4.
すなわち、ベローズ本体５０の正面にニッケル（Ｎｉ）
メッキ５０ａを施すとともに、シール部材５１の表面に
ニッケル（Ｎｉ）メッキ５１ａを施し、ベローズ本体５
０とシール部材５１の表面にフラックスを塗布したのち
、ベローズ本体５０とシール部材５１との接合面に半田
５２を溶着し、ベローズ本体５０と、シール部材５１と
を接合する構成が採用されていた。That is, nickel (Ni) is placed on the front of the bellows body 50.
Along with plating 50a, nickel (Ni) plating 51a is applied to the surface of the seal member 51, and the bellows body 5
After applying flux to the surfaces of the bellows body 50 and the sealing member 51, solder 52 is welded to the joint surface of the bellows body 50 and the sealing member 51, and the bellows body 50 and the sealing member 51 are joined together. .
（発明が解決しようとする課題］
しかしながら、上記のような従来の技術においては、ベ
ローズ本体５０およびシール部材５１にそれぞれ単体で
ニッケル（Ｎｉ）メンキ５０ａ、５１ａを施し、これら
にフラックスを塗布したのち、半田５２付げによってベ
ローズ本体５０とシール部材５１とを接合するようにし
ているため、フラックスの洗浄が充分でないとベローズ
本体５０とシール部材５１との接合面が腐食する恐れが
あるという問題を有していた。(Problem to be Solved by the Invention) However, in the conventional technology as described above, nickel (Ni) coatings 50a and 51a are applied to the bellows main body 50 and the seal member 51, respectively, and after applying flux thereto, Since the bellows main body 50 and the seal member 51 are joined by soldering 52, the problem that the joint surface between the bellows main body 50 and the seal member 51 may corrode if the flux is not sufficiently cleaned is solved. had.
さらに、ベローズ本体５０およびシール部材５１にニッ
ケル（Ｎｉ）メッキ５０ａ、５１ａを施したのち、これ
らにフラックスを塗布し、そののちに半田５２付けをす
る工程を経なければならないので、作業工数が多く作業
性が低下するという問題を有していた。Furthermore, after applying nickel (Ni) plating 50a, 51a to the bellows body 50 and sealing member 51, it is necessary to apply flux thereto and then to solder 52, which requires a large number of man-hours. This had the problem of reduced workability.
本発明の目的は、ベローズ本体およびシール部材に対す
る接合用の予備作業を行うことなく、ベローズ本体とシ
ール部材を接合することができる圧電素子用ベローズの
接合方法を提供するごとにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for joining a bellows for a piezoelectric element by which a bellows main body and a sealing member can be joined without performing preliminary work for joining the bellows main body and the sealing member.
前記目的を達成するために、本発明は、圧電素子挿入用
の開口端部を有する蛇腹状のベローズ本体と、ベローズ
本体の開口端部を閉塞するとともに、ベローズ本体内の
圧電素子を支持するシール部材とを互いに接触させ、こ
れらの接合面にレーザ光を照射し、レーザ光の熱エネル
ギーにより前記接合面を溶着するようにした圧電素子用
ベローズの接合方法を採用したものである。To achieve the above object, the present invention provides an accordion-shaped bellows body having an open end for inserting a piezoelectric element, and a seal that closes the open end of the bellows body and supports the piezoelectric element within the bellows body. This method employs a method for joining bellows for piezoelectric elements in which the members are brought into contact with each other, the joining surfaces are irradiated with a laser beam, and the joining surfaces are welded by the thermal energy of the laser beam.
本発明は上記の手段を採用したことにより、ベローズ本
体とシール部材の各接合面にレーザ光を照射し、レーザ
光の熱エネルギーにより接合面を溶着するようにしたた
め、ベローズ本体およびシール部材に接合用の予備作業
を行わなくてもシール部材とベローズ本体とを接合する
ことが可能となり、作業性の向」−に寄り、することが
できる。By employing the above means, the present invention irradiates each joining surface of the bellows body and the sealing member with a laser beam, and the thermal energy of the laser beam welds the joining surfaces, so that the bellows body and the sealing member are bonded. It becomes possible to join the sealing member and the bellows body without performing any preliminary work, and work efficiency can be improved.
さらに、各接合面に腐食が発生するのを防止することも
できるとともに、接合部のシール性および機械的強度の
向上を図ることか可能となる。Furthermore, it is possible to prevent corrosion from occurring on each joint surface, and it is also possible to improve the sealing performance and mechanical strength of the joint portion.
以下、本発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図において蛇腹状のベローズ本体１０は略円筒状に
形成されており、一端が閉塞されているとともに、他端
に開口端部１１が形成されている。In FIG. 1, an accordion-shaped bellows main body 10 is formed into a substantially cylindrical shape, and has one end closed and an open end 11 formed at the other end.
そして、ベローズ本体１０内には圧電素子１２が収納さ
れているとともに、ベローズ本体１０の開口端部１１に
は円盤状のシール部材１３が装着されており、開口端部
１１がシール部材１３によって閉塞されている。A piezoelectric element 12 is housed in the bellows body 10, and a disk-shaped seal member 13 is attached to the open end 11 of the bellows body 10, and the open end 11 is closed by the seal member 13. has been done.
前記シール部材１３の、前記ベローズ本体１０例の端部
には円環状の段部１４が形成されており、この段部１４
内には圧電素子１２の端部が嵌合されており、これによ
り、圧電素子１２は前記ベローズ本体１０の内部におい
てシール部＋４’ １３によって支持されている。An annular step portion 14 is formed at the end of the bellows main body 10 of the seal member 13.
An end portion of the piezoelectric element 12 is fitted therein, so that the piezoelectric element 12 is supported by the seal portion +4' 13 inside the bellows body 10.
上記構成におけるベローズ本体１０とシール部材１３と
を接合するに際しては以下のように行なう。The bellows main body 10 and the seal member 13 in the above configuration are joined as follows.
まず、前記ベローズ本体１０とシール部材１３とが互い
に接触する接合面１０Ａ、１３Ａに向けてレーザ光１５
を照射し、レーザ光１５の熱エネルギーにより各接合面
１’ ＯＡ、１３Ａを溶着し、この溶着によりベローズ
本体１０とシール部材１３とを接合する。First, a laser beam 15 is directed toward the joint surfaces 10A and 13A where the bellows main body 10 and the sealing member 13 are in contact with each other.
The thermal energy of the laser beam 15 welds the joint surfaces 1' OA and 13A, and the bellows body 10 and the seal member 13 are joined by this welding.
すなわち、前記ベローズ本体１０とシール部材１３に対
する接合用予備作業を何ら施すことなく、ベローズ本体
１０とシール部材１３に直接にレーザ光１５を照射する
だけで、ベローズ本体１０とシール部材１３とを接合し
て一体とすることができる。That is, the bellows main body 10 and the seal member 13 can be joined by simply irradiating the bellows main body 10 and the seal member 13 with the laser beam 15 directly, without performing any preliminary work for joining the bellows main body 10 and the seal member 13. It can be integrated as a whole.
このために、従来のようにメッキ処理作業およびフラッ
クスの塗布作業が不要となり、作業性の向上を図ること
が可能となる。This eliminates the need for plating work and flux application work as in the past, making it possible to improve workability.
また、フラックスを用いることがないため、接合面１０
Ａ、１３Ａにフラックスの洗浄不足による腐食が発生す
るのを防止することができる。In addition, since flux is not used, the bonding surface 10
It is possible to prevent corrosion from occurring in A and 13A due to insufficient cleaning of flux.
さらに、ベローズ本体】０とシール部材］３とが溶着し
て接合するため、これら接合部のシール性および機械的
強度の向」−を図ることができる。Furthermore, since the bellows body [0] and the seal member [3] are welded and joined, it is possible to improve the sealing performance and mechanical strength of these joints.
以上説明したように、本発明によれば、ベローズ本体と
シール部材とをレーザ光の熱エネルギーにより溶着する
ようにしたため、接合のための予備作業が不要となり、
作業性の向上がｌれるとともに、接合部のシール性およ
び機械的強度の向上に寄与することができる。As explained above, according to the present invention, since the bellows main body and the sealing member are welded together using the thermal energy of laser light, there is no need for preliminary work for joining.
This not only improves workability but also contributes to improving the sealing performance and mechanical strength of the joint.
第１図は本発明が適用されたベローズの要部断面図、第
２図〜第４図は従来の接合方法を説明するための図であ
って、第２図はベローズ本体の要部断面図、第３図はシ
ール部材の要部断面図、第４図はベローズ本体とシール
部材の接合状態を示す要部断面図である。
１０．５０・・・・・・ベローズ本体
１０Ａ、１３Ａ・・・・・・接合面
１１・・・・・・開口端部
１２・・・・・・圧電素子
１３．５１・・・・・・シール部材
１４・・・・・・段部
１５・・・・・・レーザ光
５２・・・・・・半田Fig. 1 is a sectional view of the main part of a bellows to which the present invention is applied, Figs. 2 to 4 are diagrams for explaining the conventional joining method, and Fig. 2 is a sectional view of the main part of the bellows body. 3 is a sectional view of the main part of the sealing member, and FIG. 4 is a sectional view of the main part showing the joined state of the bellows body and the sealing member. 10.50... Bellows bodies 10A, 13A... Joint surface 11... Open end 12... Piezoelectric element 13.51... Seal member 14...Step part 15...Laser beam 52...Solder
Claims (1)
ーズ本体と、該ベローズ本体の開口端部を閉塞するとと
もに、該ベローズ本体内の圧電素子を支持するシール部
材とを互いに接触させ、これらの接合面にレーザ光を照
射し、レーザ光の熱エネルギーにより前記接合面を溶着
することを特徴とする圧電素子用ベローズの接合方法。(1) A bellows body having a bellows shape having an open end for inserting a piezoelectric element and a sealing member that closes the open end of the bellows body and supports the piezoelectric element within the bellows body are brought into contact with each other; A method for joining bellows for a piezoelectric element, characterized in that these joining surfaces are irradiated with a laser beam and the joining surfaces are welded by the thermal energy of the laser beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1130439A JPH02307690A (en) | 1989-05-24 | 1989-05-24 | Joining method for bellows for piezoelectric element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1130439A JPH02307690A (en) | 1989-05-24 | 1989-05-24 | Joining method for bellows for piezoelectric element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02307690A true JPH02307690A (en) | 1990-12-20 |
Family
ID=15034270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1130439A Pending JPH02307690A (en) | 1989-05-24 | 1989-05-24 | Joining method for bellows for piezoelectric element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02307690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005224861A (en) * | 2004-01-14 | 2005-08-25 | Usui Kokusai Sangyo Kaisha Ltd | Method for removing resin layer from resin-coated metal tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58166168A (en) * | 1982-03-29 | 1983-10-01 | Toshiba Corp | Bellows |
-
1989
- 1989-05-24 JP JP1130439A patent/JPH02307690A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58166168A (en) * | 1982-03-29 | 1983-10-01 | Toshiba Corp | Bellows |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005224861A (en) * | 2004-01-14 | 2005-08-25 | Usui Kokusai Sangyo Kaisha Ltd | Method for removing resin layer from resin-coated metal tube |
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