JP4572690B2 - Ultrasonic bonding method and ultrasonic bonding apparatus - Google Patents

Ultrasonic bonding method and ultrasonic bonding apparatus Download PDF

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JP4572690B2
JP4572690B2 JP2005030965A JP2005030965A JP4572690B2 JP 4572690 B2 JP4572690 B2 JP 4572690B2 JP 2005030965 A JP2005030965 A JP 2005030965A JP 2005030965 A JP2005030965 A JP 2005030965A JP 4572690 B2 JP4572690 B2 JP 4572690B2
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flange portion
pipe
horns
joining
ultrasonic bonding
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祐一 青木
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Denso Corp
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Description

本発明は、金属製の第１部材を金属製の第２部材に対して加圧しながら振動させることにより、両者を接合する超音波接合方法、および超音波接合装置に関するものである。 The present invention relates to an ultrasonic bonding method and an ultrasonic bonding apparatus in which a metal first member is vibrated while being pressed against a metal second member to bond both of them.

従来、金属製の２つの部材同士を接合する方法として、例えば特許文献１に示されるような超音波接合方法が知られている。この超音波接合方法では、例えば一端側にフランジ部を有する配管（直管）を第１部材として、また、例えば熱交換器のヘッダタンク壁面を第２部材としている。そして、熱交換器をアンビルで固定した状態で、ホーンによって配管（フランジ部）を所定の加圧力で熱交換器（ヘッダタンク壁面）側に加圧しながら振動させることで摩擦を起させ、酸化皮膜を破壊し、両者の接触面に発生した摩擦熱によって、フランジ部をヘッダタンク壁面に加圧接合させている。尚、ホーンは、フランジ部の外側面（反熱交換器側面）に当接して配管の外周面を覆うように円筒状に形成されており、配管（直管）の反フランジ部側からセットされるようになっている（特許文献１中の図５）。   Conventionally, as a method of joining two metal members, for example, an ultrasonic joining method as shown in Patent Document 1 is known. In this ultrasonic bonding method, for example, a pipe (straight pipe) having a flange portion on one end side is used as a first member, and, for example, a header tank wall surface of a heat exchanger is used as a second member. Then, with the heat exchanger fixed with the anvil, the horn oscillates the pipe (flange portion) while applying pressure to the heat exchanger (header tank wall surface) side with a predetermined pressurizing force to cause friction, and the oxide film The flange portion is pressure bonded to the header tank wall surface by the frictional heat generated on the contact surfaces of the two. The horn is formed in a cylindrical shape so as to cover the outer peripheral surface of the pipe in contact with the outer surface (side surface of the heat exchanger) of the flange portion, and is set from the side opposite the flange portion of the pipe (straight pipe). (FIG. 5 in Patent Document 1).

ここでは、フランジ部にヘッダタンク壁面側に向けて突出する突起部を設けることで、突起部の接触面圧を高く維持して、振動エネルギーを突起部に集中させることで、超音波接合により熱履歴の影響を最小限に抑えつつ、超音波接合の歩留まりを高めながら充分な接合強度、接合部の気密性を得るようにしている。
特開２００１−２４６４７９号公報 Here, by providing a protrusion that protrudes toward the wall surface of the header tank on the flange, the contact surface pressure of the protrusion is maintained high, and vibration energy is concentrated on the protrusion, so that heat is applied by ultrasonic bonding. While minimizing the influence of the history, it is possible to obtain a sufficient bonding strength and airtightness of the bonded portion while increasing the yield of ultrasonic bonding.
JP 2001-246479 A

しかしながら、上記配管が曲管であったり、配管の中間部に張出し部等があると、上記のようなホーンを反フランジ部側からセットできなくなるので、ホーンをフランジ部の円周方向に複数に分割して超音波接合を行う必要が生ずる。この時、複数に分割されたホーン同士の干渉を避けるために所定の隙間部を設けることが必要となり、この隙間部においてはフランジ部側への加圧および振動付加ができなくなるため、充分な接合強度、気密性が得られない。   However, if the pipe is a curved pipe or if there is an overhanging part or the like in the middle of the pipe, the horn cannot be set from the opposite side of the flange. It becomes necessary to divide and perform ultrasonic bonding. At this time, it is necessary to provide a predetermined gap portion in order to avoid interference between the horns divided into a plurality of parts. In this gap portion, it is impossible to apply pressure and vibration to the flange portion side, so that sufficient bonding is possible. Strength and airtightness cannot be obtained.

本発明の目的は、上記問題に鑑み、複数に分割されたホーンでも、確実な接合状態の得られる超音波接合方法、および超音波接合装置を提供することにある。 In view of the above problems, an object of the present invention is to provide an ultrasonic bonding method and an ultrasonic bonding apparatus capable of obtaining a reliable bonding state even with a horn divided into a plurality of parts.

本発明は上記目的を達成するために、以下の技術的手段を採用する。   In order to achieve the above object, the present invention employs the following technical means.

請求項１に記載の発明では、管状部材（１１０）の一端側に形成されたフランジ部（１１１）を、ホーン（１１、１２）によって、相手側部材（１２０）の穴部の外周面（１２１）に加圧しながら振動させることにより接合する超音波接合方法であって、ホーン（１１、１２）をフランジ部（１１１）の周方向に複数に分割しておき、複数のホーン（１１、１２）を所定の隙間部（１３）を設けてフランジ部（１１１）にセットして、複数のホーン（１１、１２）をフランジ部（１１１）に加圧接触後に、同時もしくは交互に作動させて一回目の接合を行い、隙間部（１３）に対応するフランジ部（１１１）の位置を、複数のホーン（１１、１２）に対向するように周方向に相対的にずらした後に、複数のホーン（１１、１２）を同時もしくは交互に作動させて二回目の接合を行うことを特徴としている。   In the first aspect of the present invention, the flange portion (111) formed on one end side of the tubular member (110) is moved by the horn (11, 12) to the outer peripheral surface (121) of the hole portion of the mating member (120). ) By applying vibration while applying pressure to the horn (11, 12) and dividing the horn (11, 12) into a plurality in the circumferential direction of the flange portion (111). Is set in the flange portion (111) with a predetermined gap portion (13), and the plurality of horns (11, 12) are operated simultaneously or alternately after the pressure contact with the flange portion (111) for the first time. The flange portions (111) corresponding to the gap portions (13) are shifted relative to each other in the circumferential direction so as to face the plurality of horns (11, 12), and then the plurality of horns (11 , 12) Is operated alternately is characterized by performing the bonding of the second time.

これにより、管状部材（１１０）が曲管であったり、また、管状部材（１１０）の中間部に張出し部等が有るような場合であっても、分割されたホーン（１１、１２）を用いるので、相手側部材（１２０）への超音波接合が可能となる。ここで、一回目の接合時に、フランジ部（１１１）と外周面（１２１）との間でホーン（１１、１２）の隙間部（１３）に対応する部位には未接合部（１３１）が残ることになるが、二回目の接合によって上記未接合部（１３１）は解消されることになるので、全周に渡って少なくとも一回は接合の成されたものとすることができる。即ち、気密性を有する接合管（１００）とすることができる。   As a result, even if the tubular member (110) is a curved pipe, or there is an overhanging portion or the like in the middle of the tubular member (110), the divided horns (11, 12) are used. Therefore, ultrasonic bonding to the counterpart member (120) becomes possible. Here, at the time of the first joining, an unjoined portion (131) remains in a portion corresponding to the gap portion (13) of the horn (11, 12) between the flange portion (111) and the outer peripheral surface (121). However, since the unjoined portion (131) is eliminated by the second joining, the joining can be performed at least once over the entire circumference. That is, it can be set as the joining pipe | tube (100) which has airtightness.

請求項２に記載の発明では、管状部材（１１０）の一端側に形成されたフランジ部（１１１）を、相手側部材（１２０）の穴部の外周面（１２１）に加圧しながら振動させることにより接合するホーン（１１、１２）を有する超音波接合装置であって、ホーン（１１、１２）は、フランジ部（１１１）の周方向に複数に分割されると共に、複数のホーン（１１、１２）は、所定の隙間部（１３）を有するようにフランジ部（１１１）にセットされ、加圧接触された後に、同時もしくは交互作動による接合を可能としており、接合を行っていない時に、複数のホーン（１１、１２）は、周方向に移動可能としたことを特徴としている。 In the invention according to claim 2, the flange portion (111) formed on one end side of the tubular member (110) is vibrated while being pressed against the outer peripheral surface (121) of the hole portion of the counterpart member (120). The horn (11, 12) is an ultrasonic bonding apparatus having a horn (11, 12) that is divided by a plurality of horns (11, 12) in the circumferential direction of the flange portion (111). ) is set to the flange portion (111) so as to have a predetermined clearance (13), after being brought into pressure contact, and thereby enabling bonding with simultaneous or alternating operation, when not subjected to bonding, a plurality of The horn (11, 12) is characterized by being movable in the circumferential direction.

これにより、請求項１に記載の超音波接合方法を可能とする装置とすることができる。   Thereby, it can be set as the apparatus which enables the ultrasonic bonding method of Claim 1.

尚、上記各手段の括弧内の符号は、後述する実施形態記載の具体的手段との対応関係を示すものである。   In addition, the code | symbol in the bracket | parenthesis of each said means shows a corresponding relationship with the specific means of embodiment description mentioned later.

（第１実施形態）
本発明に係る第１実施形態について、図１、図２を用いて説明する。尚、図１は２つのパイプ１１０、１２０を接合して接合パイプ１００を形成するための超音波接合装置１０を示す断面図、図２は図１のＡ−Ａ部であり、（ａ）は超音波接合装置１０による一回目の接合要領、（ｂ）は二回目の接合要領を示す断面図である。 (First embodiment)
1st Embodiment which concerns on this invention is described using FIG. 1, FIG. 1 is a cross-sectional view showing an ultrasonic joining apparatus 10 for joining two pipes 110 and 120 to form a joined pipe 100, FIG. 2 is an AA portion of FIG. 1, and FIG. (B) is a cross-sectional view showing a second joining procedure by the ultrasonic joining apparatus 10.

図１に示すように、第１パイプ１１０は、金属製のパイプであって、本発明における管状部材に対応するものであり、一端側の全周に円形の第１フランジ部１１１が形成されている。尚、図１中では省略しているが、第１パイプ１１０の他端側（反フランジ部側）は曲げ部を有し、曲管となっている。   As shown in FIG. 1, the first pipe 110 is a metal pipe and corresponds to the tubular member of the present invention, and a circular first flange portion 111 is formed on the entire circumference on one end side. Yes. Although omitted in FIG. 1, the other end side (the opposite flange side) of the first pipe 110 has a bent portion, which is a curved pipe.

また、第２パイプ１２０は、上記第１パイプ１１０と同様に、金属製のパイプであって、本発明における相手側部材に対応するものであり、一端側の全周に円形の第２フランジ部１２１が形成されている。尚、第２フランジ部１２１は、本発明における穴部の外周面に対応する。   Similarly to the first pipe 110, the second pipe 120 is a metal pipe and corresponds to the counterpart member in the present invention, and has a circular second flange portion around the entire circumference on one end side. 121 is formed. In addition, the 2nd flange part 121 respond | corresponds to the outer peripheral surface of the hole part in this invention.

超音波接合装置１０は、上記の第１パイプ１１０を第２パイプ１２０側に加圧すると共に、更に第１フランジ部１１１の面が広がる方向に振動を付加するホーン１０Ａと、第２パイプ１２０を固定するアンビル１０Ｂとを有している。そして、ホーン１０Ａは、図２に示すように、第１フランジ部１１１の円周方向に複数（ここでは２つ）に分割されており、円柱部材を半割りにした第１ホーン１１と第２ホーン１２とから形成されるようにしている。尚、第１ホーン１１および第２ホーン１２は、図示しない２つの駆動部にそれぞれ接続されており、後述するように、第１パイプ１１０に対する加圧作動、および振動作動を同時もしくは交互に果たすようになっている。   The ultrasonic bonding apparatus 10 fixes the second pipe 120 and the horn 10A that pressurizes the first pipe 110 toward the second pipe 120 and adds vibration in the direction in which the surface of the first flange portion 111 further expands. And an anvil 10B. As shown in FIG. 2, the horn 10 </ b> A is divided into a plurality (here, two) in the circumferential direction of the first flange portion 111, and the first horn 11 and the second halves of the cylindrical member are divided. The horn 12 is formed. The first horn 11 and the second horn 12 are respectively connected to two drive units (not shown), and perform a pressurizing operation and a vibrating operation on the first pipe 110 simultaneously or alternately as will be described later. It has become.

次に、上記超音波接合装置１０を用いた接合方法について説明する。まず、両ホーン１１、１２間を開いた状態にして、第２フランジ部１２１が上側を向くようにして第２パイプ１２０をアンビル１０Ｂにセットする。更に、第２フランジ部１２１の上側面に第１フランジ部１１１を乗せるようにして第１パイプ１１０をセットする。そして、第１パイプ１１０を挟むようにして両ホーン１１、１２間を閉じる。この時、両ホーン１１、１２と第１パイプ１１０の外周面とが接触しないように、且つ、両ホーン１１、１２の半円形の端部間に隙間部１３（図２中の寸法δ）が形成されるようにしている。   Next, a bonding method using the ultrasonic bonding apparatus 10 will be described. First, the two horns 11 and 12 are opened, and the second pipe 120 is set on the anvil 10B so that the second flange portion 121 faces upward. Further, the first pipe 110 is set so that the first flange portion 111 is placed on the upper side surface of the second flange portion 121. And between both the horns 11 and 12 is closed so that the 1st pipe 110 may be pinched | interposed. At this time, the gap 13 (dimension δ in FIG. 2) is provided between the semicircular ends of the horns 11 and 12 so that both the horns 11 and 12 do not contact the outer peripheral surface of the first pipe 110. To be formed.

その後に、両ホーン１１、１２を第１フランジ部１１１に加圧接触させて（図１中の白矢印）、両ホーン１１、１２によって同時もしくは交互に第１フランジ部１１１の面の広がる方向（図２中の白矢印方向）に振動を付加することで、両フランジ部１１１、１２１同士を接合する（一回目の接合）。この時、隙間部１３においては、第１ホーン１１が第１フランジ部１１１に当接しない部位となるので、第２フランジ部１２１に対しては未接合部（図２（ａ）中のハッチング部）１３１として残る。   Thereafter, the horns 11 and 12 are brought into pressure contact with the first flange portion 111 (white arrows in FIG. 1), and the direction of the surface of the first flange portion 111 spreading by the horns 11 and 12 simultaneously or alternately ( By adding vibration in the direction of the white arrow in FIG. 2, the flange portions 111 and 121 are joined to each other (first joining). At this time, since the first horn 11 is not in contact with the first flange portion 111 in the gap portion 13, it is not joined to the second flange portion 121 (the hatched portion in FIG. 2A). ) 131.

その後に、上記未接合部１３１の位置を、両ホーン１１、１２の下面に対向するように周方向に相対的にずらす。即ち、ここでは、両パイプ１１０、１２０（上記一回目の接合でほぼ両者が接合されているもの）を、図２（ｂ）に示すように、中心回りに所定角度α分だけずらして、未接合部１３１が両ホーン１１、１２の下側となるように再セットする。そして、上記一回目の接合と同様の要領で、二回目の接合を行うことで、接合パイプ（本発明における接合パイプに対応）１００が完成される。   Thereafter, the position of the unjoined portion 131 is relatively shifted in the circumferential direction so as to face the lower surfaces of both the horns 11 and 12. That is, here, as shown in FIG. 2B, the pipes 110 and 120 (both pipes that are joined together in the first joining) are shifted by a predetermined angle α around the center, Reset the joint 131 so that it is below the horns 11 and 12. And the joining pipe (corresponding to the joining pipe in the present invention) 100 is completed by performing the second joining in the same manner as the first joining.

以上のように本発明においては、ホーン１０Ａを周方向に複数に分割し（ホーン１１、１２）、一回目の接合の後に未接合部１３１の位置を両ホーン１１、１２に対して相対的にずらして、二回目の接合を行うようにしているので、第１パイプ１１０が曲管であったり、また、第１パイプ１１０の中間部に張出し部等が有るような場合であっても、分割された両ホーン１１、１２によって、第２パイプ（相手側部材）１２０への超音波接合が可能となる。ここで、一回目の接合時に、両ホーン１１、１２の隙間部１３に対応する部位には未接合部１３１が残ることになるが、二回目の接合によって上記未接合部１３１は解消されることになるので、全周に渡って少なくとも一回は接合の成された接合パイプ１００とすることができる。即ち、気密性を有する接合パイプ１００とすることができる。   As described above, in the present invention, the horn 10A is divided into a plurality of parts in the circumferential direction (horns 11 and 12), and the position of the unjoined portion 131 is relatively set with respect to both the horns 11 and 12 after the first joining. Since the second joining is performed by shifting, even if the first pipe 110 is a curved pipe or there is an overhanging part or the like in the middle part of the first pipe 110, it is divided. The both horns 11 and 12 enable ultrasonic bonding to the second pipe (mating member) 120. Here, at the time of the first joining, the unjoined part 131 remains in the portion corresponding to the gap 13 between the horns 11 and 12, but the unjoined part 131 is eliminated by the second joining. Therefore, the joined pipe 100 can be joined at least once over the entire circumference. That is, the joining pipe 100 having airtightness can be obtained.

（その他の実施形態）
上記実施形態では、相手側部材として、第１パイプ１１０と同様の第２パイプ１２０としたが、これに限らず、端部側断面が第２フランジ部１２１に相当する面積を有する厚肉の管部材としたり、穴部を有するブロック状の部材等としても良い。 (Other embodiments)
In the above embodiment, the second member 120 is the same as the first member 110 as the counterpart member. However, the present invention is not limited to this. It is good also as a member or a block-shaped member etc. which have a hole.

また、二回目の接合を行う際に、未接合部１３１に対して、両ホーン１１、１２側を中心回りに回転させて位置をずらすようにしても良い。   In addition, when performing the second joining, the positions may be shifted by rotating both the horns 11 and 12 around the center with respect to the unjoined portion 131.

尚、接合パイプ１００としては、管状部材が曲り部を有する長尺のパイプであって、例えば、内部を冷媒が流通する空調装置用の熱交換器に接続されるものに用いて好適である。具体的には、相手側部材を熱交換器の本体部に接合しておき、更にこの相手側部材に管状部材を超音波接合で接合することで、熱交換器への接合が容易で、且つ気密性を確保できる接合パイプ１００として使用できる。   In addition, as the joining pipe 100, the tubular member is a long pipe having a bent portion, and is suitable for use in, for example, a pipe connected to a heat exchanger for an air conditioner in which a refrigerant flows. Specifically, the mating member is joined to the main body of the heat exchanger, and the tubular member is joined to the mating member by ultrasonic joining, so that the joining to the heat exchanger is easy, and It can be used as the joining pipe 100 that can ensure airtightness.

２つのパイプを接合して接合パイプを形成するための超音波接合装置を示す断面図である。It is sectional drawing which shows the ultrasonic bonding apparatus for joining two pipes and forming a joining pipe. 図１のＡ−Ａ部であり、（ａ）は超音波接合装置による一回目の接合要領、（ｂ）は二回目の接合要領を示す断面図である。1. It is an AA part of FIG. 1, (a) is a 1st joining procedure by an ultrasonic bonding apparatus, (b) is sectional drawing which shows the 2nd joining procedure.

符号の説明Explanation of symbols

１０ 超音波接合装置
１１ 第１ホーン（ホーン）
１２ 第２ホーン（ホーン）
１３ 隙間部
１００ 接合パイプ（接合管）
１１０ 第１パイプ（管状部材）
１１１ 第１フランジ部（フランジ部）
１２０ 第２パイプ（相手側部材）
１２１ 第２フランジ部（穴部の外周面） 10 Ultrasonic bonding device 11 First horn
12 Second horn
13 Gap 100 Bonded pipe (bonded pipe)
110 First pipe (tubular member)
111 First flange (flange)
120 Second pipe (other member)
121 2nd flange (outer peripheral surface of hole)

Claims (2)

管状部材（１１０）の一端側に形成されたフランジ部（１１１）を、ホーン（１１、１２）によって、相手側部材（１２０）の穴部の外周面（１２１）に加圧しながら振動させることにより接合する超音波接合方法であって、
前記ホーン（１１、１２）を前記フランジ部（１１１）の周方向に複数に分割しておき、
複数の前記ホーン（１１、１２）を所定の隙間部（１３）を設けて前記フランジ部（１１１）にセットして、
複数の前記ホーン（１１、１２）を前記フランジ部（１１１）に加圧接触後に、同時もしくは交互に作動させて一回目の接合を行い、
前記隙間部（１３）に対応する前記フランジ部（１１１）の位置を、複数の前記ホーン（１１、１２）に対向するように周方向に相対的にずらした後に、
複数の前記ホーン（１１、１２）を同時もしくは交互に作動させて二回目の接合を行うことを特徴とする超音波接合方法。 By vibrating the flange portion (111) formed on one end side of the tubular member (110) while applying pressure to the outer peripheral surface (121) of the hole portion of the counterpart member (120) by the horn (11, 12). An ultrasonic bonding method for bonding,
The horn (11, 12) is divided into a plurality in the circumferential direction of the flange portion (111),
A plurality of the horns (11, 12) are provided on the flange portion (111) with a predetermined gap portion (13),
After the plurality of the horns (11, 12) are in pressure contact with the flange portion (111), they are simultaneously or alternately operated to perform the first joining,
After relatively shifting the position of the flange portion (111) corresponding to the gap portion (13) in the circumferential direction so as to face the plurality of horns (11, 12),
The ultrasonic bonding method, wherein the plurality of horns (11, 12) are operated simultaneously or alternately to perform the second bonding. 管状部材（１１０）の一端側に形成されたフランジ部（１１１）を、相手側部材（１２０）の穴部の外周面（１２１）に加圧しながら振動させることにより接合するホーン（１１、１２）を有する超音波接合装置であって、
前記ホーン（１１、１２）は、前記フランジ部（１１１）の周方向に複数に分割されると共に、
複数の前記ホーン（１１、１２）は、所定の隙間部（１３）を有するように前記フランジ部（１１１）にセットされ、加圧接触された後に、同時もしくは交互作動による前記接合を可能としており、
前記接合を行っていない時に、複数の前記ホーン（１１、１２）は、前記周方向に移動可能としたことを特徴とする超音波接合装置。 A horn (11, 12) for joining a flange portion (111) formed on one end side of the tubular member (110) by oscillating while pressing the outer peripheral surface (121) of the hole portion of the counterpart member (120). An ultrasonic bonding apparatus comprising:
The horn (11, 12) is divided into a plurality in the circumferential direction of the flange portion (111),
A plurality of the horns (11, 12) are set on the flange portion (111) so as to have a predetermined gap portion (13), and after being pressed and contacted, the joining by simultaneous or alternating operation is enabled. ,
The ultrasonic bonding apparatus, wherein the plurality of horns (11, 12) are movable in the circumferential direction when the bonding is not performed.
JP2005030965A 2005-02-07 2005-02-07 Ultrasonic bonding method and ultrasonic bonding apparatus Expired - Fee Related JP4572690B2 (en)

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JP6673634B2 (en) * 2014-11-07 2020-03-25 株式会社エンビジョンＡｅｓｃジャパン Ultrasonic bonding method
CN108080964B (en) * 2018-03-05 2023-07-18 安阳市荣诚石油矿山机械有限公司 Multifunctional welding equipment

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JPH06235595A (en) * 1992-11-30 1994-08-23 Daikin Ind Ltd Humidifying element and its manufacturing method
JPH10225779A (en) * 1997-02-13 1998-08-25 Showa Alum Corp Ultrasonic joining method for aluminum material
JPH1147956A (en) * 1997-08-04 1999-02-23 Showa Alum Corp Ultrasonic joining method of metal container
JP2001334372A (en) * 1999-05-18 2001-12-04 Denso Corp Equipment and method for ultrasonic bonding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06235595A (en) * 1992-11-30 1994-08-23 Daikin Ind Ltd Humidifying element and its manufacturing method
JPH10225779A (en) * 1997-02-13 1998-08-25 Showa Alum Corp Ultrasonic joining method for aluminum material
JPH1147956A (en) * 1997-08-04 1999-02-23 Showa Alum Corp Ultrasonic joining method of metal container
JP2001334372A (en) * 1999-05-18 2001-12-04 Denso Corp Equipment and method for ultrasonic bonding

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