JP2000351159A - Method for welding and connecting resin component and welded horn - Google Patents

Method for welding and connecting resin component and welded horn

Info

Publication number
JP2000351159A
JP2000351159A JP11165032A JP16503299A JP2000351159A JP 2000351159 A JP2000351159 A JP 2000351159A JP 11165032 A JP11165032 A JP 11165032A JP 16503299 A JP16503299 A JP 16503299A JP 2000351159 A JP2000351159 A JP 2000351159A
Authority
JP
Japan
Prior art keywords
protrusion
welding
horn
center
resin
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
Application number
JP11165032A
Other languages
Japanese (ja)
Inventor
Minoru Matsune
穣 松根
Yutaka Onodera
豊 小野寺
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.)
Nok Corp
Original Assignee
Nok Corp
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 Nok Corp filed Critical Nok Corp
Priority to JP11165032A priority Critical patent/JP2000351159A/en
Publication of JP2000351159A publication Critical patent/JP2000351159A/en
Pending 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • 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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow 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
    • B29C66/70—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
    • 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
    • B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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
    • B29C66/81429—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 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat

Abstract

PROBLEM TO BE SOLVED: To realize a uniformly connecting state and to improve quality of a connecting portion by ultrasonically welding a protrusion provided on a resin component by a horn having a recess of a sectional shape formed from a center radially to its tip end. SOLUTION: A protrusion 2 is formed integrally in combination of a disc-like root portion 3 having a cylindrical outer periphery 4 and a truncated conical end 5 having a tapered outer periphery 6 at upper and lower parts so that an end face 1 of the end 5 is formed in a flat surface state. A circular arc-like recess 10 is formed from a center to the outer peripheral end at a tip end 9 of a horn 8, and a sharp end-like protrusion 11 is formed at a center of the end 9. The protrusion 11 is brought into contact with the protrusion 2 of the resin component 1 at a pin point at an initial time of welding. Accordingly, melting of the protrusion 2 is gradually spread from a center. Since the recess 10 of the section from the center of the end 9 to the outer peripheral end is formed in an annular protrusion 12 exhibiting a sharp end state at the outer peripheral end, the protrusion 12 is relatively early brought into contact with the molten resin, thereby preventing bulging-out of the molten resin to its periphery.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、樹脂部品を超音波
溶着により相手部品に溶着接合するための樹脂部品の溶
着接合方法に関し、更に、これに用いられる溶着ホーン
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for welding and joining a resin part to a mating part by ultrasonic welding, and more particularly to a welding horn used for the method.

【０００２】[0002]

【従来の技術】例えば、図３に示す樹脂部品５１を相手
部品５２に固定する場合、樹脂部品５１に設けた凸部５
３を相手部品５２に設けた孔部５４に差し込み、凸部５
３の先端に超音波溶着機器のホーン（溶着ホーン）５５
を押し付けて作動させて、凸部５３を図４に示すように
溶融させる超音波溶着法が用いられることがある。2. Description of the Related Art For example, when a resin component 51 shown in FIG.
3 into the hole 54 provided in the mating component 52,
Horn (welding horn) 55 of ultrasonic welding equipment at the tip of 3
An ultrasonic welding method in which the protrusion 53 is melted as shown in FIG.

【０００３】図４は、溶融によって樹脂部品５１の凸部
５３の形状が変わってゆく様子を同図（Ａ）（Ｂ）およ
び（Ｃ）の順に経時的に示しており、最終的に同図
（Ｃ）のように凸部５３が平たく潰れて相手部品５２を
挟み込むことにより、樹脂部品５１が相手部品５２に固
定される。FIG. 4 shows how the shape of the convex portion 53 of the resin component 51 changes due to melting in the order of FIGS. 1A, 1B, and 4C, and finally, FIG. The resin component 51 is fixed to the mating component 52 by crushing the convex portion 53 flat and sandwiching the mating component 52 as shown in FIG.

【０００４】このように樹脂部品５１を超音波溶着によ
り相手部品５２に固定する場合、樹脂部品５１の材料樹
脂が充填材無しの熱可塑性樹脂であるときは、ホーン５
５の先端部５５ａの形状が図３に示したように平面状で
あっても、凸部５３が図４に示したように滑らかに形状
変化し、よって均一に近い状態で接合を行なうことが可
能である。When the resin component 51 is fixed to the mating component 52 by ultrasonic welding as described above, when the resin material of the resin component 51 is a thermoplastic resin without filler, the horn 5 is used.
Even when the tip portion 55a of FIG. 5 has a flat shape as shown in FIG. 3, the convex portion 53 changes its shape smoothly as shown in FIG. It is possible.

【０００５】しかしながら、樹脂部品５１の材料樹脂が
その剛性を高めるべくガラス繊維やカーボンファイバー
等の充填材を配合した熱可塑性樹脂であるときには、樹
脂の剛性が高くなり、また充填材の配向等が凸部５３の
形状変化に大きく影響するために、均一な状態で接合す
るのが困難であり、溶融樹脂が周囲に食み出して、接合
状態が不均一なものになることがある。[0005] However, when the resin material of the resin component 51 is a thermoplastic resin containing a filler such as glass fiber or carbon fiber in order to increase the rigidity, the rigidity of the resin increases, and the orientation of the filler becomes poor. Since it greatly affects the shape change of the convex portion 53, it is difficult to join in a uniform state, and the molten resin may protrude to the surroundings, and the joining state may be uneven.

【０００６】[0006]

【発明が解決しようとする課題】本発明は以上の点に鑑
みて、樹脂部品の材料樹脂がその剛性を高めるべくガラ
ス繊維やカーボンファイバー等の充填材を配合した熱可
塑性樹脂であっても、溶着に際して溶融樹脂が周囲に食
み出すことがなく、もって均一な接合状態を実現するこ
とが可能な樹脂部品の溶着接合方法と、これに用いる溶
着ホーンとを提供することを目的とする。SUMMARY OF THE INVENTION In view of the above, the present invention has been made in consideration of the above problem even if the material resin of the resin component is a thermoplastic resin containing a filler such as glass fiber or carbon fiber in order to increase the rigidity thereof. It is an object of the present invention to provide a method for welding and joining resin parts, which can achieve a uniform joining state without causing molten resin to protrude to the periphery during welding, and a welding horn used for the method.

【０００７】[0007]

【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項１による樹脂部品の溶着接合方法
は、熱可塑性樹脂よりなる樹脂部品をホーンを用いて超
音波溶着により相手部品に溶着接合する方法であって、
前記ホーンの先端部にその中心部から径方向外方にかけ
て断面円弧状の凹部を形成し、前記樹脂部品に設けた凸
部を前記ホーンを用いて溶融することを特徴とするもの
である。According to a first aspect of the present invention, there is provided a method for welding and joining resin parts to a mating part by ultrasonic welding of a resin part made of a thermoplastic resin using a horn. A method of welding and joining,
A concave portion having an arc-shaped cross section is formed at a tip portion of the horn from a center portion to a radially outward portion, and a convex portion provided on the resin component is melted using the horn.

【０００８】また、本発明の請求項２による溶着ホーン
は、熱可塑性樹脂よりなる樹脂部品を超音波溶着により
相手部品に溶着接合する際に用いられる溶着ホーンであ
って、その先端部の中心部に凸を備え、その周囲にも輪
状の凸を備えたことを特徴とするものである。A welding horn according to a second aspect of the present invention is a welding horn used for welding and joining a resin component made of a thermoplastic resin to a mating component by ultrasonic welding. , And a ring-shaped protrusion is also provided around the protrusion.

【０００９】上記構成を備えた本発明の請求項１による
溶着接合方法のように、ホーンの先端部にその中心部か
ら径方向外方にかけて断面円弧状の凹部が形成される
と、ホーンの先端部の中心部に凸が形成されて、この凸
が溶着当初に謂わばピンポイントで樹脂部品の凸部に接
触する。したがって凸部の溶融がその中心部から開始さ
れて徐々に広がってゆくことになる。また、このように
ホーンの先端部にその中心部から径方向外方にかけて断
面円弧状の凹部が形成されると、ホーンの先端部の周囲
に輪状の凸が形成されて、この輪状の凸が溶融樹脂に対
して比較的早く接触する。したがってこの輪状の凸が謂
わば防ぎとなって、溶融樹脂が周囲に食み出すのを防止
することが可能となる。As in the welding method according to the first aspect of the present invention having the above-mentioned structure, when a concave portion having an arc-shaped cross section is formed from the center to the radially outward portion at the tip of the horn, the tip of the horn is formed. A convex portion is formed at the center of the portion, and this convex portion contacts the convex portion of the resin component in a so-called pinpoint manner at the beginning of welding. Therefore, the melting of the convex portion starts from the central portion and gradually spreads. Further, when a concave portion having an arc-shaped cross section is formed at the distal end of the horn from its center to the radially outward side, a ring-shaped convex is formed around the distal end of the horn, and this ring-shaped convex is formed. Relatively fast contact with molten resin. Therefore, the ring-shaped protrusions prevent the molten resin from leaking out to the surroundings.

【００１０】また、上記構成を備えた本発明の請求項２
による溶着ホーンのように、その先端部の中心部に凸が
設けられると、この凸が溶着当初に謂わばピンポイント
で樹脂部品の凸部に接触する。したがって凸部の溶融が
その中心部から開始されて徐々に広がってゆくことにな
る。凸は基本的に尖端状に形成されるが、断面円弧形な
いし半円形の球面状に形成されても良く、またその先端
に若干の平面部を備えていても良い。また、この溶着ホ
ーンによると、先端部の周囲に輪状の凸が設けられるた
めに、この輪状の凸が溶融樹脂に対して比較的早く接触
する。したがってこの輪状の凸が謂わば防ぎとなって、
溶融樹脂が周囲に食み出すのを防止することが可能とな
る。輪状の凸は基本的に断面尖端状に形成されるが、断
面円弧状ないし半円状に形成されても良く、またその先
端に所定の幅を備えた若干の平面部を備えていても良
い。Further, the present invention has the above-mentioned structure.
When a projection is provided at the center of the tip portion as in a welding horn according to the above, the projection comes into contact with the projection of the resin component in a so-called pinpoint manner at the beginning of welding. Therefore, the melting of the convex portion starts from the central portion and gradually spreads. The projection is basically formed in a pointed shape, but may be formed in a spherical shape having an arc-shaped or semi-circular cross section, or may have a slight flat portion at its tip. Further, according to the welding horn, since the annular protrusion is provided around the distal end portion, the annular protrusion comes into contact with the molten resin relatively quickly. Therefore, this ring-shaped protrusion serves as a so-called prevention,
It is possible to prevent the molten resin from leaking out to the surroundings. The annular protrusion is basically formed in a pointed shape in cross section, but may be formed in an arc shape or a semicircular shape in cross section, or may have a slight flat portion having a predetermined width at its tip. .

【００１１】[0011]

【発明の実施の形態】つぎに本発明の実施形態を図面に
したがって説明すると、当該実施形態に係る樹脂部品の
溶着接合方法は、図１に示す樹脂部品１を、同図に示す
超音波溶着機器のホーン（溶着ホーン）８を用いて超音
波溶着により、図２に示す相手部品１３に溶着接合する
ものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. A method for welding and joining resin parts according to this embodiment is as follows. The resin part 1 shown in FIG. The ultrasonic welding is performed by using a horn (welding horn) 8 of the device, and is welded and joined to the mating component 13 shown in FIG.

【００１２】樹脂部品１は、６・６ナイロンまたは６ナ
イロン等の熱可塑性樹脂によって成形されており、ま
た、その材料樹脂中にその剛性を高めるべくガラス繊維
やカーボンファイバー等の充填材が配合されている。ま
たこの樹脂部品１には、以下のように構成された凸部２
が一体に設けられている。The resin component 1 is formed of a thermoplastic resin such as 6.6 nylon or 6 nylon, and a filler such as glass fiber or carbon fiber is blended in the material resin to increase the rigidity. ing. The resin component 1 has a convex portion 2 configured as described below.
Are provided integrally.

【００１３】すなわち、この凸部２は、円筒状の外周面
４を備えた円盤状の根元部３と、テーパ状の外周面６を
備えた円錐台状の先端部５とを上下に一体に組み合わせ
た形状をなしており、先端部５の先端面７は平面状に形
成されている。また、根元部３の径寸法（φＡ）より先
端部５の先端面７の径寸法（φＢ）の方が小さく設定さ
れており（φＡ＞φＢ）、また根元部３の高さ寸法
（ｈ）は凸部２全体の高さ寸法（Ｃ）の三分の一以上の
大きさに設定されている（ｈ＞１／３・Ｃ）。That is, the convex portion 2 vertically and integrally forms a disk-shaped root portion 3 having a cylindrical outer peripheral surface 4 and a truncated conical tip portion 5 having a tapered outer peripheral surface 6. It has a combined shape, and the distal end surface 7 of the distal end portion 5 is formed in a planar shape. Further, the diameter (φB) of the tip end surface 7 of the tip 5 is set smaller than the diameter (φA) of the root 3 (φA> φB), and the height (h) of the root 3 is set. Is set to be at least one-third of the height dimension (C) of the entire protrusion 2 (h> １ ／ · C).

【００１４】ホーン８は、所定の金属によって成形され
ており、以下のように構成された平面円形の先端部９を
有している。The horn 8 is formed of a predetermined metal and has a flat circular tip portion 9 configured as follows.

【００１５】すなわち、この先端部９に、その中心部か
ら径方向外方に向けて外周端部に至るまでに断面円弧状
を呈する環状の凹部１０が形成されており、これにより
先端部９の中心部に尖端状の凸（突起または凸部とも称
する）１１が形成されるとともに、先端部９の外周端部
に尖端状を呈する輪状ないし環状の凸（突起または凸部
とも称する）１２が形成されている。That is, the distal end portion 9 is formed with an annular concave portion 10 having an arc-shaped cross section extending from the center portion to the outer peripheral end portion in the radially outward direction. A pointed projection (also referred to as a projection or a projection) 11 is formed at the center, and a ring-shaped or annular projection (also referred to as a projection or a projection) 12 having a pointed shape is formed at an outer peripheral end of the tip 9. Have been.

【００１６】また、相手部品１３には、樹脂部品１の凸
部２を差し込む孔部１４が設けられている。The mating part 13 is provided with a hole 14 into which the convex part 2 of the resin part 1 is inserted.

【００１７】上記樹脂部品１を上記ホーン８を用いて超
音波溶着により相手部品１３に溶着接合するに際して
は、樹脂部品１に設けた凸部２を相手部品１３に設けた
孔部１４に差し込み、凸部２の先端部にホーン８を押し
付けて作動させて、凸部２を溶融するものであって、当
該溶着接合方法は、上記構成を備えていることにより以
下の作用効果を奏する点に特徴を有している。When the resin component 1 is welded to the mating component 13 by ultrasonic welding using the horn 8, the projection 2 provided on the resin component 1 is inserted into a hole 14 provided on the mating component 13, The horn 8 is pressed against the tip of the convex portion 2 to operate it, thereby melting the convex portion 2. The welding and joining method has the following functions and effects by providing the above configuration. have.

【００１８】すなわち先ず、ホーン８の先端部９にその
中心部から外周端部にかけて断面円弧状の凹部１０が形
成されていて、その先端部９の中心部に尖端状の凸１１
が形成されているために、この尖端状の凸１１が溶着の
当初にピンポイントで樹脂部品１の凸部２に接触する。
したがって凸部２の溶融がその中心部から開始されて徐
々に広がってゆくことになる。また、ホーン８の先端部
９にその中心部から外周端部にかけて断面円弧状の凹部
１０が形成されていて、その先端部９の外周端部に尖端
状を呈する輪状ないし環状の凸１２が形成されているた
めに、この尖端状を呈する輪状ないし環状の凸１２が溶
融の進行に伴って比較的早く溶融樹脂に対して接触す
る。したがってこの凸１２が防ぎとなって、溶融樹脂が
周囲に食み出すのを防止することができ、よってこれら
により、図２に示すように均一な接合状態を実現するこ
とができる。First, a concave portion 10 having an arc-shaped cross section is formed in the tip 9 of the horn 8 from the center to the outer peripheral end thereof, and a sharp projection 11 is formed in the center of the tip 9.
Is formed, the pointed protrusion 11 comes into contact with the protrusion 2 of the resin component 1 pinpoint at the beginning of welding.
Therefore, the melting of the convex portion 2 starts from the central portion and gradually spreads. Further, a concave portion 10 having an arc-shaped cross section is formed in the tip portion 9 of the horn 8 from the center portion to the outer peripheral end portion, and a ring-shaped or annular convex portion 12 having a pointed shape is formed in the outer peripheral end portion of the tip portion 9. As a result, the pointed ring-shaped or annular projection 12 comes into contact with the molten resin relatively quickly as the melting proceeds. Therefore, the protrusions 12 prevent the molten resin from leaking out to the surroundings, and thus, a uniform joining state can be realized as shown in FIG.

【００１９】[0019]

【発明の効果】本発明は、以下の効果を奏する。The present invention has the following effects.

【００２０】すなわち先ず、上記構成を備えた本発明の
請求項１による溶着接合方法においては、ホーンの先端
部にその中心部から径方向外方にかけて断面円弧状の凹
部が形成されるために、ホーンの先端部の中心部に凸が
形成されて、この凸が溶着当初にピンポイントで樹脂部
品の凸部に接触する。したがって凸部の溶融がその中心
部から開始されて徐々に広がってゆく。また、このよう
にホーンの先端部にその中心部から径方向外方にかけて
断面円弧状の凹部が形成されると、ホーンの先端部の周
囲に輪状の凸が形成されて、この輪状の凸が溶融樹脂に
対して比較的早く接触する。したがってこの輪状の凸が
防ぎとなって、溶融樹脂が周囲に食み出すのを防止する
ことができる。したがってこれらのことから、均一な接
合状態を実現することができ、接合部の品質を向上させ
ることができる。That is, first, in the welding method according to the first aspect of the present invention having the above-described structure, a concave portion having an arc-shaped cross section is formed at the tip of the horn from the center to the outside in the radial direction. A protrusion is formed at the center of the tip of the horn, and the protrusion comes into contact with the protrusion of the resin component pinpoint at the beginning of welding. Therefore, the melting of the convex portion starts from the central portion and gradually spreads. Further, when a concave portion having an arc-shaped cross section is formed at the distal end of the horn from its center to the radially outward side, a ring-shaped convex is formed around the distal end of the horn, and this ring-shaped convex is formed. Relatively fast contact with molten resin. Therefore, the ring-shaped protrusion prevents the molten resin from leaking out to the surroundings. Therefore, from these facts, a uniform joining state can be realized, and the quality of the joining portion can be improved.

【００２１】また、上記構成を備えた本発明の請求項２
による溶着ホーンにおいては、その先端部の中心部に凸
が設けられるために、この凸が溶着当初にピンポイント
で樹脂部品の凸部に接触する。したがって凸部の溶融が
その中心部から開始されて徐々に広がってゆく。また、
この溶着ホーンにおいては併せて、先端部の周囲に輪状
の凸が設けられるために、この輪状の凸が溶融樹脂に対
して比較的早く接触する。したがってこの輪状の凸が防
ぎとなって、溶融樹脂が周囲に食み出すのを防止するこ
とができる。したがってこれらのことから、均一な接合
状態を実現することができ、接合部の品質を向上させる
ことができる。Further, the present invention has the above configuration.
In the welding horn according to (1), since a projection is provided at the center of the tip, the projection comes into contact with the projection of the resin component pinpoint at the beginning of welding. Therefore, the melting of the convex portion starts from the central portion and gradually spreads. Also,
In addition, in this welding horn, since a ring-shaped protrusion is provided around the tip portion, the ring-shaped protrusion comes into contact with the molten resin relatively quickly. Therefore, the ring-shaped protrusion prevents the molten resin from leaking out to the surroundings. Therefore, from these facts, a uniform joining state can be realized, and the quality of the joining portion can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施形態に係る溶着接合方法の実施に
使用されるホーンと樹脂部品の要部断面図FIG. 1 is a sectional view of a main part of a horn and a resin part used for performing a welding method according to an embodiment of the present invention.

【図２】溶着接合の完了状態を示す樹脂部品と相手部品
の要部断面図FIG. 2 is a cross-sectional view of a main part of a resin part and a mating part showing a completed state of welding bonding.

【図３】従来例に係る溶着接合方法の実施に使用される
ホーンと樹脂部品の要部断面図FIG. 3 is a sectional view of a main part of a horn and a resin component used for performing a welding method according to a conventional example.

【図４】（Ａ）（Ｂ）および（Ｃ）とも溶融による凸部
の形状変化を示す断面図FIGS. 4A, 4B, and 4C are cross-sectional views showing a change in shape of a convex portion due to melting;

【符号の説明】[Explanation of symbols]

１ 樹脂部品 ２ 凸部 ３ 根元部 ４，６ 外周面 ５，９ 先端部 ７ 先端面 ８ ホーン（溶着ホーン） １０ 凹部 １１，１２ 凸 １３ 相手部品 １４ 孔部 DESCRIPTION OF SYMBOLS 1 Resin component 2 Convex part 3 Root part 4, 6 Outer peripheral surface 5, 9 Tip part 7 Tip surface 8 Horn (welding horn) 10 Concave part 11, 12 Convex 13 Mating part 14 Hole part

フロントページの続き Ｆターム(参考） 4F211 AA29 AD05 AD15 AD19 AD24 AG02 AG03 AG26 AH81 TA06 TD02 TD11 TH18 TH20 TN22 TN75 Continued on the front page F term (reference) 4F211 AA29 AD05 AD15 AD19 AD24 AG02 AG03 AG26 AH81 TA06 TD02 TD11 TH18 TH20 TN22 TN75

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 熱可塑性樹脂よりなる樹脂部品（１）を
ホーン（８）を用いて超音波溶着により相手部品（１
３）に溶着接合する方法であって、 前記ホーン（８）の先端部（９）にその中心部から径方
向外方にかけて断面円弧状の凹部（１０）を形成し、前
記樹脂部品（１）に設けた凸部（２）を前記ホーン
（８）を用いて溶融することを特徴とする樹脂部品の溶
着接合方法。1. A resin component (1) made of a thermoplastic resin is ultrasonically welded to a mating component (1) using a horn (8).
3) A method of welding and joining the resin component (1), wherein a concave portion (10) having an arc-shaped cross section is formed at a tip portion (9) of the horn (8) from a center portion thereof to a radially outward portion. And fusing the convex part (2) provided on the resin part using the horn (8). 【請求項２】 熱可塑性樹脂よりなる樹脂部品（１）を
超音波溶着により相手部品（１３）に溶着接合する際に
用いられる溶着ホーン（８）であって、 その先端部（９）の中心部に凸（１１）を備え、その周
囲にも輪状の凸（１２）を備えたことを特徴とする溶着
ホーン。2. A welding horn (8) used for welding and joining a resin part (1) made of a thermoplastic resin to a mating part (13) by ultrasonic welding, the center of a tip (9) of the welding horn. A welding horn comprising a convex portion (11) at a portion and a ring-shaped convex portion (12) around the convex portion.
JP11165032A 1999-06-11 1999-06-11 Method for welding and connecting resin component and welded horn Pending JP2000351159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11165032A JP2000351159A (en) 1999-06-11 1999-06-11 Method for welding and connecting resin component and welded horn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11165032A JP2000351159A (en) 1999-06-11 1999-06-11 Method for welding and connecting resin component and welded horn

Publications (1)

Publication Number Publication Date
JP2000351159A true JP2000351159A (en) 2000-12-19

Family

ID=15804552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11165032A Pending JP2000351159A (en) 1999-06-11 1999-06-11 Method for welding and connecting resin component and welded horn

Country Status (1)

Country Link
JP (1) JP2000351159A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006112183A1 (en) 2005-03-31 2006-10-26 Nhk Spring Co., Ltd. Bonded body and bonding method
CN101712203A (en) * 2008-10-01 2010-05-26 宝理塑料株式会社 A butt fusion structure, a butt fusion body and a method of improving creep fracture life
KR100966941B1 (en) * 2002-12-13 2010-06-30 엘지전자 주식회사 chip prevention apparatus for cap
KR101300584B1 (en) 2007-04-27 2013-08-28 삼성전자주식회사 Structure for fusion welding using supersonic wave

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100966941B1 (en) * 2002-12-13 2010-06-30 엘지전자 주식회사 chip prevention apparatus for cap
WO2006112183A1 (en) 2005-03-31 2006-10-26 Nhk Spring Co., Ltd. Bonded body and bonding method
EP1864783A1 (en) * 2005-03-31 2007-12-12 Nhk Spring Company Limited Bonded body and bonding method
EP1864783A4 (en) * 2005-03-31 2011-09-28 Nhk Spring Co Ltd Bonded body and bonding method
US8113735B2 (en) 2005-03-31 2012-02-14 Nhk Spring Co., Ltd. Joint structure and joining method
KR101300584B1 (en) 2007-04-27 2013-08-28 삼성전자주식회사 Structure for fusion welding using supersonic wave
CN101712203A (en) * 2008-10-01 2010-05-26 宝理塑料株式会社 A butt fusion structure, a butt fusion body and a method of improving creep fracture life

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