JPH078535B2 - 超音波溶着方法 - Google Patents

超音波溶着方法

Info

Publication number
JPH078535B2
JPH078535B2 JP62322401A JP32240187A JPH078535B2 JP H078535 B2 JPH078535 B2 JP H078535B2 JP 62322401 A JP62322401 A JP 62322401A JP 32240187 A JP32240187 A JP 32240187A JP H078535 B2 JPH078535 B2 JP H078535B2
Authority
JP
Japan
Prior art keywords
synthetic resin
resin member
welding
horn
reinforcing plate
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
Application number
JP62322401A
Other languages
English (en)
Other versions
JPH01160634A (ja
Inventor
博文 木曽
和明 嶌田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62322401A priority Critical patent/JPH078535B2/ja
Publication of JPH01160634A publication Critical patent/JPH01160634A/ja
Publication of JPH078535B2 publication Critical patent/JPH078535B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/126—Tenon and mortise joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7496—Pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7498—Rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は合成樹脂を接合させるための超音波溶着方法に
関するものである。
従来の技術 従来の技術として、電動遠心ポンプの羽根車の組み立て
を例に取って説明する。樹脂で作られた遠心羽根車をモ
ーターシャフトに取り付ける構造のものでは、材質が樹
脂であるので、モーターシャフトとの嵌合部の強度が足
りない場合がある。そのため、出力の大きいポンプの場
合、補強金具を備えたものが使用されている。
まずこの種の遠心羽根車の構成を説明する。第４図にお
いて、１は遠心羽根車の前面部を形成する前面シュラウ
ド、２は遠心羽根車の後面部を形成する後面シュラウド
である。2aは後面シュラウド２に複数形成された羽根、
2bはＨカットのシャフト貫通孔である。３はシャフト貫
通孔を補強するための金属製の補強板である。3aは補強
板３に形成された位置決め穴であり、一方2cは位置決め
3aに嵌り合うように後面シュラウド２に形成された突起
である。４は補強板３を後面シュラウド２に固定するた
めの補強板押さえである。
次に従来の超音波溶着による組み立ての手順を図面に基
づいて説明する。
第５図において、前面シュラウド１は、前面シュラウド
１と同じ曲面を持つ溶着用治具６に乗せられる。溶着用
治具６は、前面シュラウドと後面シュラウドとが互いに
同心となるよう正確に位置決めができるよう中心位置決
め棒12を備えている。第１ホーン７には、後面シュラウ
ド２が嵌め込まれ、第１ホーン７が矢印Ａ方向に下げら
れ、第６図に示されるように前面シュラウド１に後面シ
ュラウド２が押し付けられる。そして、一定条件のもと
で両者が溶着される。なお、この時第１ホーン７には、
後面シュラウド２の背面に突出した突起2cに当たらぬよ
うになっている。次に第４図に示されるように前面シュ
ラウド１と後面シュラウドから成る羽根車に補強板３が
取り付けられる。まず、補強板位置決め用突起2cと補強
板３の位置決め穴3aとを嵌め合わせ、突起2cに合成樹脂
の補強板押さえ４を乗せる。そして、第２ホーン８を当
て、補強板押さえ４を突起突起2cの上面に溶着して、補
強板３を羽根車に固定する。
溶着には次の４つの条件が適正でなくてはならない。す
なわち、 加圧力 ：「ホーンが溶着物を押す力。」 発信時間：「ホーンが振動する時間。」 保持時間：「発信終了後の溶着物を押さえる時間。」 トリガー：「加圧してから発信開始までの時間。」 である。そして、寸法精度はこれらの値によって大きく
左右されることとなる。そのため、溶着実験を何度も行
い、上記の４つの条件について最適値を決める必要があ
る。
発明が解決しようとする問題点 溶着工程は前面シュラウドと後面シュラウドの溶着と、
補強板押さえの溶着の２工程である。前述したように、
溶着後の寸法、例えば第１の溶着工程が終了した後の寸
法h1,b2（第６図参照）は前に挙げた４つの条件でほぼ
定まるが、確実な固定に重点を置いて各条件を設定する
と、寸法h1,b2が必ずしも希望通りにならず、いくらか
誤差が生じる場合がある。また第２の溶着工程が終了し
た後の寸法h2にも同様に誤差が生じてしまう。前面及び
後面シュラウドの接着時、h1,h2に寸法誤差が生じ、補
強板取り付けのための溶着時、h2に寸法誤差が生じる
と、出来上がった物にはh1,b2の誤差とh2k誤差とが重な
って大きな誤差が生じてしまい、第７図に示されるよう
にポンプケーシング９内に収めた状態では最悪の場合、
ポンプケーシング内壁に接触してしまうこととなり、騒
音，振動発生の原因となっていた。
本発明は以上の問題点に鑑みてなされたものであり、複
数の部材を重ねて一度で溶着する場合であっも、寸法誤
差を非常に小さくすることが出来る超音波溶着方法を提
供することを目的とする。
問題点を解決するための手段 本発明は、溶着用ホーンに第１の当接面及びそれよりも
所定の高さだけ高い第２の当接面を設け、第１の合成樹
脂部材（例えば上記従来例での前面シュラウド１）の上
に第２の合成樹脂部材（例えば上記従来例での後面シュ
ラウド２）を置き、第２の合成樹脂部材上に第３の合成
樹脂部材（例えば上記従来例での補強板押さえ４）をそ
の高さが上記所定の高さよりも高くなるように置き、溶
着用ホーンの第１の当接面が第３の合成樹脂部材に、ま
た第２の当接面が第２の合成樹脂部材にそれぞれ当接す
るようにした。
作用 このようにした事により、溶着用ホーンを降ろした時に
先に第３の合成樹脂部材に溶着用ホーンの第１の当接面
が当たり、第３の合成樹脂部材と第２の合成樹脂部材に
は必要最小値よりいくらか高めの圧力が加わり、その溶
着部では樹脂が十分につぶれ、ホーンが第２の合成樹脂
部材に当たる迄つぶれる事となる。
実施例 以下、本発明における超音波溶着方法を遠心羽根車の製
造方法に適用した場合の実施例を説明する。第１図にお
いて、１は前面シュラウド、２は後面シュラウド、３は
後面シュラウド２の背面に取り付けられる金属性の補強
板、４は補強板３を固定するための補強板押さえであ
り、すでに従来の技術にて説明したものと同様な構成で
ある。５は本実施例にて用いられたホーンであり、中央
に補強板押さえ面5aが形成され、その周囲に前記補強板
押さえ面5aよりh3だけ高い後面シュラウド押さえ面5bが
形成されている。まず第１図に示されるように、前面シ
ュラウド１を治具６上に置き、その上に後面シュラウド
２を置く。そして、補強板３をその位置決め穴3aと後面
シュラウド２側、の突起2cとが嵌り合うようにして後面
シュラウド２上に置き、補強板押さえ４を突起2cの上に
置く。以上の準備が終ると、超音波溶着機の動作開始ス
イッチを押す。超音波溶着機は予め定められたプログラ
ム及び設定された条件に従って溶着作業を行う。ホーン
５は第２図に示されるようにまずは補強板押さえ４に当
たる。そして振動が開始されると、補強板押さえ４と突
起2cとの接触部分において樹脂が溶ける。ホーン５より
加えられた圧力により、溶けた部分はつぶれ、両者は溶
着される。そして、第３図に示されるようにホーン５は
後面シュラウド２に当たる。そして後面シュラウド２に
振動が伝わり、後面シュラウド２と前面シュラウド１と
の接触部において樹脂が溶ける。ホーン５に加えられた
圧力により樹脂が溶けた部分がいくらかつぶれるととも
に、後面シュラウド２と前面シュラウド１とは溶着され
る。所定の振動時間が過ぎると振動は停止し、溶けた樹
脂は硬化を始める。そして振動が停止して所定の時間が
過ぎると、ホーン５が上昇し、溶着工程が完了する。
以上のような方法で溶着を行うと、完成した遠心羽根車
の前面シュラウド１と後面シュラウド２との間の幅h4は
予め設定された各条件によって決まり、一方後面シュラ
ウド表面と補強板押さえ４の上面との段差h5はホーン５
の段差h3に等しくなる。そのため、h4とh5をたし合わせ
た長さ、すなわちh6はh4と同じ精度で定まる。
発明の効果 以上のように本発明は、溶着用ホーンに第１の当接面及
びそれよりも所定の高さだけ高い第２の当接面を設け、
第１の合成樹脂部材の上に第２の合成樹脂部材を置き、
第２の合成樹脂部材上に第３の合成樹脂部材をその高さ
が上記所定の高さよりも高くなるように置き、溶着用ホ
ーンの第１の当接面が第３の合成樹脂部材に、また第２
の当接面が第２の合成樹脂部材にそれぞれ当接するよう
にし、溶着用ホーンに第１の合成樹脂部材と第２の合成
樹脂部材の溶着に十分な圧力を加えた事により、第３の
合成樹脂製押さえ部材と第２の合成樹脂部材との溶着部
では樹脂が十分につぶれ、ホーンが第２の合成樹脂部材
にあたる迄つぶれることとなり、従って第３の合成樹脂
部材の第２の合成樹脂部材からの突出寸法はホーン形状
に依存し、ホーンが突出する寸法を規制する型の役割を
果たすこととなる。このため、第１の合成樹脂部材から
第３の合成樹脂部材の上面に至る全体幅はほぼ第１の合
成樹脂部材と第２の合成樹脂部材の溶着条件のみに影響
されることとなり、寸法誤差のばらつきも非常に小さく
なる。しかも、超音波溶着機には溶着条件として第１の
合成樹脂部材と第２の合成樹脂部材との溶着に十分な値
のみを設定するだけで、三者の溶着が出来る。つまり、
その条件は合成樹脂製押さえ部材の溶着に十分なもので
あり、合成樹脂製押さえ部材の溶着のみのために別の値
に設定を変更したり、別の値に設定された他の超音波溶
着機を用意する必要はなく、工数を大幅に削減すること
ができる。
【図面の簡単な説明】
第１図，第２図，第３図は本発明の実施例における超音
波溶着方法を示す遠心羽根車及び溶着用ホーンの断面
図、第４図は遠心羽根車の構成を示す分解斜視図、第５
図，第６図は従来の超音波溶着方法を示す遠心羽根車及
び溶着用ホールの断面図、第７図は遠心羽根車をポンプ
ケーシング内に収めた状態の断面図である。 １……第１の合成樹脂部材、２……第２の合成樹脂部
材、３……補強板、４……合成樹脂製押さえ部材板、５
……ホーン、６……溶着用治具

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】第１の合成樹脂部材の上に第２の合成樹脂
    部材を、また第２の合成樹脂部材の上に所定の高さとな
    るように第３の合成樹脂部材をそれぞれ超音波溶着によ
    って接合する超音波溶着方法であって、第１の合成樹脂
    部材の上に第２の合成樹脂部材を置き、第２の合成樹脂
    部材上に第３の合成樹脂部材をその高さが上記所定の高
    さよりも高くなるように置き、第１の当接面と、上記第
    １の当接面より上記所定の高さだけ高い第２の当接面と
    を有する溶着用ホーンを、第１の当接面が第３の合成樹
    脂部材に、また第２の当接面が第２の合成樹脂部材にそ
    れぞれ当接するように当て、上記ホーンに第１の合成樹
    脂部材と第２の合成樹脂部材の溶着に十分な圧力を加
    え、上記ホーンに超音波振動を与えることを特徴とする
    超音波溶着方法。
JP62322401A 1987-12-18 1987-12-18 超音波溶着方法 Expired - Lifetime JPH078535B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62322401A JPH078535B2 (ja) 1987-12-18 1987-12-18 超音波溶着方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62322401A JPH078535B2 (ja) 1987-12-18 1987-12-18 超音波溶着方法

Publications (2)

Publication Number Publication Date
JPH01160634A JPH01160634A (ja) 1989-06-23
JPH078535B2 true JPH078535B2 (ja) 1995-02-01

Family

ID=18143252

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPH078535B2 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703111B1 (fr) * 1993-03-25 1995-06-30 Ozen Sa Rotor pour pompe comportant deux pieces assemblees par soudure, obtenues par moulage par injection de materiaux thermoplastiques, et procede de fabrication d'un tel rotor .
DE10354749A1 (de) * 2003-11-21 2005-06-23 Siemens Ag Verfahren zur Herstellung eines Laufrades für eine Kreiselpumpe
DE102022131215B3 (de) 2022-11-25 2024-05-08 Bühler Motor GmbH Laufrad für eine Flüssigkeitspumpe

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