WO2006112183A1 - 接合体および接合方法 - Google Patents

接合体および接合方法 Download PDF

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Publication number
WO2006112183A1
WO2006112183A1 PCT/JP2006/304266 JP2006304266W WO2006112183A1 WO 2006112183 A1 WO2006112183 A1 WO 2006112183A1 JP 2006304266 W JP2006304266 W JP 2006304266W WO 2006112183 A1 WO2006112183 A1 WO 2006112183A1
Authority
WO
WIPO (PCT)
Prior art keywords
joined
hole
positioning
joining
shaft portion
Prior art date
Application number
PCT/JP2006/304266
Other languages
English (en)
French (fr)
Inventor
Jun Tominaga
Ryohei Shigematsu
Masakatsu Nagashima
Original Assignee
Nhk Spring 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 Nhk Spring Co., Ltd. filed Critical Nhk Spring Co., Ltd.
Priority to US11/887,414 priority Critical patent/US8113735B2/en
Priority to CN2006800111281A priority patent/CN101160204B/zh
Priority to EP06715286A priority patent/EP1864783A4/en
Publication of WO2006112183A1 publication Critical patent/WO2006112183A1/ja

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
    • F16B5/045—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting without the use of separate rivets
    • 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
    • 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
    • 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
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
    • B29C65/7808—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots
    • B29C65/7811—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots for centring 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
    • 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
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
    • B29C65/7814—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of inter-cooperating positioning features, e.g. tenons and mortises
    • 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
    • B29C65/7844—Holding or clamping means for handling purposes cooperating with specially formed features of at least one of the parts to be joined, e.g. cooperating with holes or ribs of at least one 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
    • B29C66/01—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
    • B29C66/40—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
    • B29C66/43—Joining a relatively small portion of the surface of said 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
    • B29C66/40—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
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements 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
    • B29C66/70—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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
    • 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
    • B29C66/006—Preventing damaging, e.g. 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/343—Making tension-free or wrinkle-free 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
    • B29C66/40—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
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4933—Member deformed in situ by separate, deformable element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4949—Deforming component is inserted section

Definitions

  • the present invention relates to a joined body and a joining method.
  • shafts such as pins and bosses provided on a joining part have been formed on the joining part as means for joining a part to be joined made of metal, synthetic resin, or the like to a joining part molded from a synthetic resin.
  • a joined body that passes through a hole and melts and joins the shaft portion by ultrasonic vibration (see, for example, Patent Documents 1 and 2).
  • This joined body can be used to join a metal or synthetic resin to be joined to a synthetic resin joining component in a short time, especially for any material of the joining component. It has the advantages of being wide and wide.
  • Patent Document 1 JP 2000-127248 A
  • Patent Document 2 Japanese Patent Laid-Open No. 2002-318386
  • the joining component 2 is placed on the placement portion la formed on the base jig 1.
  • the joining component 2 is formed from a synthetic resin and has a shaft portion 2a that also has a force such as a pin and a boss.
  • the shaft portion 2a is inserted into the hole 3b formed in the overlapped portion 3a, and the overlapped portion 3a of the bonded component 3 is overlapped with the bonded component 2 as shown in FIG.
  • the superposition part 3a is pressed by the holding jig 4 in which the part corresponding to the shaft part 2a is cut, and the ultrasonic horn 5 is pressed against the shaft part 2a from above to impart ultrasonic vibration.
  • the joining part 2 and the part to be joined 3 are joined by melting the shaft part 2a and crushing it beyond the diameter of the hole 3b.
  • the joining component 2 uses the shaft portion 2 a inserted into the hole 3 b of the joined component 3 for positioning with the joined component 3.
  • the hole 3b of the joined component 3 is designed to have a shaft portion 2a and a shaft portion 2a as shown in FIG. It was set to be slightly larger than the shaft portion 2a of the joining component 2 so that the gap between the two was reduced.
  • the conventional force When joining the joining part 2 and the part 3 to be joined, if the ultrasonic vibration is applied to the shaft part 2a by the ultrasonic horn 5, the body softens due to the melting of the shaft part 2a or the joining part 2 and the part 2 A significant reduction in frictional resistance with the joined part 3 occurs. For this reason, in the conventional joined body, the position of the shaft part 2a and the hole 3b may be displaced easily because the positions of the joined part 2 and the joined part 3 are easily changed.
  • the present invention has been made in view of the above, and has excellent positioning accuracy between the joining component and the joined component, and avoids occurrence of a high-stress location on the shaft portion of the joining component after joining. It is an object of the present invention to provide a bonded body and a bonding method that can be used.
  • the joined body according to claim 1 includes a synthetic resin joint component having a melting shaft portion and a through hole through which the melting shaft portion is inserted.
  • a joined body formed by melting the melted shaft portion through which the to-be-joined part is passed through the insertion hole by ultrasonic vibration, and the joined part and the joined part are: It is characterized in that there are provided at least two positioning portions that are fitted to each other and position the joining component and the joined component.
  • one of the positioning portions is provided on the joining component and the other is a convex portion provided on the joined component. It is a fitting hole.
  • the joined body according to claim 3 is formed between the through hole and the melting shaft portion when the convex portion and the fitting hole are fitted.
  • the through hole and the melt so that a gap for blocking contact between the through hole and the melting shaft portion is larger than a gap formed between the convex portion and the fitting hole.
  • the shaft diameter is set.
  • the convex portion is provided with a positioning hole for positioning the joint component product at a predetermined position, and the convex portion, the fitting hole, and the The positioning holes are positioned on the same axis.
  • the joining component is provided with a positioning hole for positioning the joining component at a predetermined position, and the convex portion is arranged at the position. It is provided at a position closer to the melting shaft portion than the fixed hole.
  • a joining method includes a synthetic resin joining component having a melting shaft portion, and the melting shaft portion inserted therein.
  • a joining method for joining the part to be joined formed with a through hole by melting the melted shaft part by ultrasonic vibration and joining the part to be joined, wherein the melted shaft part is inserted into the joined part.
  • a step of positioning the joining component and the part to be joined by positioning means and a step of positioning the joining component at a predetermined position via the positioning means. Positioning the component and the component to be joined, and forming a gap between the penetration hole and the melting shaft portion to block contact between the penetration hole and the melting shaft portion; It is characterized by joining the parts to be joined. .
  • the positioning parts for positioning the joined component and the joined component are provided in at least two places, so that the joined component and the joined component are positioned.
  • the part and the part that joins the joining part and the part to be joined are separated, and the positioning accuracy between the joining part and the part to be joined is excellent, and it is sufficient to block the contact between the melting shaft part and the through hole.
  • FIG. 1 is a perspective view showing an embodiment according to the joined body of the present invention.
  • FIG. 2 is a diagram for explaining a joined body and a joining method according to the present invention, and is a perspective view showing an arrangement part of supporting parts, and an arrangement of joining parts and joined parts with respect to the supporting parts.
  • FIG. 3 is a perspective view of FIG. 2 showing a process of positioning the joining part and the part to be joined by positioning means while passing the melting shaft portion through the insertion hole of the joining part.
  • FIG. 4 is a perspective view of FIG. 2 showing a process of positioning the joining component at a predetermined position via the positioning means.
  • FIG. 5 is a diagram for explaining the joined body and the joining method of the present invention, and is a cross-sectional view showing a state in which the joined part and the joined part are arranged on the support part together with the holding jig and the ultrasonic horn. It is.
  • FIG. 6 is a cross-sectional view in which a joining part and a part to be joined are joined by melting the melting shaft part and crushing the head part.
  • FIG. 7 is a cross-sectional view showing a modified example of the joined body of the present invention.
  • FIG. 8 is a diagram for explaining a conventional joined body and joining method, and is a perspective view showing an arrangement part of supporting parts, and an arrangement of joining parts and joined parts with respect to the supporting parts.
  • Fig. 9 is a diagram showing a process of positioning the melt shaft through the insertion hole of the joining component.
  • FIG. 1 A first figure.
  • Fig. 10 is a perspective view of Fig. 8 showing a state in which the joining component is held on the support component by the holding jig together with the ultrasonic horn.
  • FIG. 11 is a cross-sectional view showing a process of joining the joined part and the part to be joined by melting the shaft part of the joined part and crushing the head part of the shaft part.
  • FIG. 1 is a perspective view showing a joined body of the present invention.
  • the joined body 10 is joined by the joining part 11 and the part to be joined 12 melting the melting shaft part 11c of the joining part 11 and crushing the head of the melting shaft part 11c. Has been.
  • the joining component 11 is molded from a synthetic resin, and as shown in Fig. 1, short legs l ib are provided on both sides of the main body 11a, and on the upper surface of the main body 11a, a melting shaft portion 11c (Fig. (See Fig. 2) are provided on both sides of the melting shaft portion 11c.
  • the convex portion l id is formed to have a diameter larger than that of the convex portion l ie, and a positioning hole 1 If is provided at the center.
  • the convex portions l id and l ie are set to have a length that slightly protrudes from the overlapping portion 12a when fitted into the fitting holes 12d and 12e. Further, the joining component 11 is provided with a positioning hole 1 lg at a position displaced from the convex portion l ie to the leg l ib side.
  • the part to be joined 12 has a superposition part 12a made of synthetic resin and a main body 12b made of metal.
  • the overlapping portion 12a is a portion that overlaps the joining component 11, and a through hole 12c is formed in the center. Further, the overlapping portion 12a is provided with fitting holes 12d, 12e at positions corresponding to the convex portions id, lie on both sides of the through-hole 12c, and the engaging holes 12f at positions corresponding to the positioning holes llg. It is installed.
  • the fitting holes 12d and 12e are positioning portions for positioning the joining component 11 and the joined component 12 by fitting with the convex portions id and lie, and may be provided at least in two places. That's fine.
  • the joined body 10 is configured by joining the joining component 11 and the joined component 12 as follows.
  • the joining component 11 is placed on the base jig. At this time, as shown in FIG. 2, the joining component 11 is placed in a groove-like placement portion 13a formed in the base jig 13.
  • the arrangement part 13a Is provided with a positioning pin 13b that engages with the positioning hole 1 If and a positioning pin 13c that engages with the positioning hole llg, and the joining component 11 is positioned with respect to the base jig 13 by the positioning pins 13b and 13c. To do.
  • the overlapping part 12a of the part 12 to be joined is overlapped, and the through hole 12c is inserted into the melting shaft part 11c, and the fitting hole 12d. , 1 and 2e are fitted with projections l id and l ie (see FIG. 3).
  • the part to be joined 12 is positioned with respect to the joint part 11.
  • the parts to be joined 12 are fitted to the fitting holes 12d and 12e at the two locations with the convex portions id and lie, respectively, and are positioned with respect to the joining component 11 at the two locations. Rotation around is restricted. Further, in the joined part 11, the protrusions l id and 11 e slightly protrude from the fitting holes 12 d and 12 e of the joined part 12.
  • the upper force protrusions 15a and 15b are brought into contact with the protrusions l id and l ie slightly protruding from the fitting holes 12d and 12e, respectively, so that the joined parts 11 is pressed against the base jig 13 by the holding jig 15.
  • the joining component 11 is held on the base jig 13 by the holding jig 15 in a state where the part to be joined 12 is positioned.
  • the ultrasonic horn 16 is pressed from above onto the melt shaft 11c to apply ultrasonic vibration.
  • the melting shaft portion 11c is melted, and the head portion of the melting shaft portion 11c is crushed by the ultrasonic horn 16 beyond the diameter of the through hole 12c (see FIG. 6).
  • the part 11 and the part 12 to be joined are joined to form a joined body 10.
  • the joining part 11 and the part to be joined 12 are positioned with respect to each other by fitting the convex portions id, lie and the fitting holes 12d, 12e.
  • the part to be joined 12 needs to form the fitting holes 12d and 12e with high accuracy to reduce the gaps between the protrusions l id and l ie.
  • the through hole 12c may be inserted through the melting shaft portion 11c and squeezed and engaged with the head of the molten melting shaft portion 11c. Therefore, according to the joined body and the joining method of the present invention, the melt shaft portion 11c and the through hole 12c are connected to the melt shaft portion after joining the joined component 11 and the workpiece 12 as shown in FIG.
  • the diameter is set so that there is a gap that blocks contact between 11c and through hole 12c. That is, as shown in FIG. 5, the gap C1 between the melting shaft portion 11c and the through-hole 12c is larger than the gap C2 between the fitting hole 12d and the convex portion id. Set the diameter to be (C1> C2). At this time, the gap C1 between the melting shaft portion 11c and the through-hole 12c becomes the fitting hole 12
  • the gap C2 between d and the convex portion id is 5 to 15 times, more preferably 7 to 12 times, and most preferably 8 to 10 times.
  • the ultrasonic horn 16 causes the melting shaft portion 11c to When melted, there is a problem that the melting shaft portion 11c comes into contact with the through hole 12c.
  • the clearance C1 between the melting shaft portion 11c and the through hole 12c exceeds the diameter of the through hole 12c by more than 15 times the clearance C2 between the fitting hole 12d and the convex portion id. There is a problem that the length of the melted shaft portion 11c to be crushed becomes longer and time is required for the joining work.
  • the joined body 10 and the joining method of the present invention when the joined component 11 and the joined component 12 are joined, the melted shaft portion 11c is melted and softened by applying ultrasonic vibration.
  • the positions of the joining component 11 and the joined component 12 do not change even if they are positioned by the fitting of the convex portions id, lie and the fitting holes 12d, 12e.
  • the joining part 11 and the part to be joined 12 are used to block contact with each other between the melting shaft part 11c and the through hole 12c even if the diameter of the melting shaft part 11c increases due to melting. Joined with sufficient clearance.
  • the joined body 10 and the joining method of the present invention when the joined part 11 and the joined part 12 are used after joining, the melted shaft part 11c is not subjected to stress from the superposed part 12a, and the melted shaft part 11c is not subjected to stress. Cracks caused by stress do not occur. Therefore, the joined body 10 and the joining method of the present invention can be used with high reliability over a long period of time.
  • the positioning pin 13b of the base jig 13 is engaged with the positioning hole 1 If of the convex portion id that is fitted into the positioning hole 12d. Accordingly, the positioning pin 13b, the positioning hole llf, and the positioning hole 12d are positioned on the same axis A. Therefore, the dimensions of the joined body 10 are managed with respect to the joining part 11 and the part to be joined 12 with respect to the positioning pin 13 3b, and the deviation between the protrusions id, lie and the fitting holes 12d, 12e is small. As a result, the positioning accuracy is improved.
  • the ultrasonic horn 16 is subjected to an upward force with the melted shaft portion 11c in a state where the joined component 11 is directly pressed against the base jig 13 by the holding jig 15.
  • the joining part 11 and the part to be joined 12 are joined by applying ultrasonic vibration to the joining part 11. Therefore, the part to be joined 12 is subjected to ultrasonic vibration applied to the melting shaft part 11c. There is no transmission from the joint part 11.
  • the holding jig 4 presses the joining part 2 against the base jig 1 via the part 3 to be joined.
  • the part to be joined 3 are in close contact with each other. For this reason, in the conventional joined body, the ultrasonic vibration imparted to the shaft portion 2a propagates from the joining component 2 to the workpiece 3 and energy loss of the ultrasonic vibration imparted to the shaft portion 2a occurs. If the shaft part 2a is not sufficiently melted and bonding becomes unstable, and the part to be joined 3 includes a board on which a metal part or electronic part is mounted, the metal part or the board resonates and the part to be joined 3 and electronic parts could be damaged.
  • the ultrasonic vibration applied to the melting shaft portion 11c by the ultrasonic horn 16 is not transmitted from the joined part 11 to the joined part 12.
  • the joined body 10 can be stably joined since the joined part 11 and the joined part 12 are joined with the melted shaft portion 11c sufficiently melted compared to the conventional joined body. Therefore, when the part to be joined 12 includes a substrate on which a metal part or an electronic part is mounted, even if ultrasonic vibration is applied to the melted shaft portion 11c, the part to be joined 12 or electronic part is caused by ultrasonic vibration. There is no damage.
  • the projections l id and l ie are pressed by the projections 15a and 15b of the holding jig 15, and the joined part 11 is held by the support part 13. .
  • ultrasonic vibration is applied to the melting shaft portion 11c to melt the melting shaft portion 11c, and the head portion of the melting shaft portion 11c is crushed to a diameter equal to or larger than the diameter of the through hole 12c. 12 was joined.
  • the joining part 11 has a stable pressing state when the convex portions id, lie pressed by the holding jig 15 are closer to the melting shaft portion 11c, and can be stably joined by the ultrasonic horn 16. Is possible.
  • the joining component 11 it is preferable to provide the convex portions l id and l ie at positions closer to the melting shaft portion 11c than the positioning holes l lg and 1 lh.
  • the joined component 11 and the joined component 12 are positioned by engaging the positioning pin 13b with the positioning holes llh and 12g and engaging the positioning pin 13c with the positioning holes llg and 12f.
  • the joining component 11 has a length that slightly protrudes from the overlapping portion 12a when the length of the convex portions id, lie is engaged with the fitting holes 12d, 12e. Was set.
  • the joining component 11 does not necessarily have to be set to a length that slightly protrudes from the overlapping portion 12a as long as the projections l id and l ie can be pressed by the protrusions 15a and 15b of the holding jig 15.
  • the joining component 11 has convex portions l id and l ie as the positioning portions, and the joined component 12 engages with the projecting portions 1 Id and 1 le, so that the joined component 12 is connected to the joining component 11.
  • the fitting portions that are positioned in this manner are the fitting holes 12d and 12e.
  • the joining component 12 may have a fitting portion as a convex portion.
  • the part to be joined 12 is provided with an engagement hole that engages with the positioning pins 13b and 13c of the base jig 13 in the convex part.
  • the joining component 11 was positioned on the base jig 13 by engaging the positioning holes l lf and l lg with the positioning pins 13b and 13c.
  • a positioning recess may be provided in the base jig 13, and an engagement protrusion that engages with the positioning recess may be provided in the joining part 11.
  • the joined body and joining method according to the present invention are obtained by joining a part to be joined such as metal or synthetic resin to a joined part formed from a synthetic resin. It is useful for manufacturing, and in particular, it has excellent positioning accuracy between the joined part and the part to be joined, and after joining, it is possible to avoid the occurrence of high stress points on the shaft part of the joined part and produce a joined body. Is suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

　溶融軸部（１１ｃ）を有する合成樹脂製の接合部品（１１）と、溶融軸部が挿通される挿通孔（１２ｃ）が形成された被接合部品（１２）とを挿通孔に挿通した溶融軸部を超音波振動によって溶融させて接合される接合体（１０）および接合方法。接合部品（１１）と被接合部品（１２）とは、互いに嵌合して接合部品と被接合部品とを位置決めする位置決め部を少なくとも二箇所に設けた。接合方法は、溶融軸部を、接合部品の挿通孔に挿通すると共に、位置決め手段によって接合部品と被接合部品とを位置決めする工程と、位置決め手段を介して前記接合部品を所定位置に位置決めする工程とを含み、接合部品と被接合部品とを位置決めすると共に、挿通孔と溶融軸部との間に挿通孔と溶融軸部との接触を遮断する隙間を形成して接合部品と被接合部品とを接合する。

Description

明 細 書
接合体および接合方法
技術分野
[0001] 本発明は、接合体および接合方法に関するものである。
背景技術
[0002] 従来、合成樹脂から成形された接合部品に、金属や合成樹脂等からなる被接合部 品を接合する手段として、接合部品に設けたピンやボス等の軸部を接合部品に形成 した孔に揷通し、前記軸部を超音波振動によって溶融させて接合する接合体が知ら れている (例えば、特許文献 1, 2参照)。この接合体は、合成樹脂製の接合部品に 金属や合成樹脂等カゝらなる被接合部品を短時間で簡易に接合することができ、特に 、被接合部品の材質を問わな 、ことから用途が広 、と 、う利点を有して 、る。
[0003] 特許文献 1：特開 2000— 127248号公報
特許文献 2 :特開 2002— 318386号公報
発明の開示
発明が解決しょうとする課題
[0004] ところで、従来の接合体は、先ず、図 8に示すように、ベース治具 1に形成した配置 部 laに接合部品 2を配置する。接合部品 2は、合成樹脂から成型され、ピンやボス等 力もなる軸部 2aを有している。次に、軸部 2aを重合部 3aに形成した孔 3bに挿通し、 図 9に示すように、被接合部品 3の重合部 3aを接合部品 2に重ね合わせる。その後、 図 10に示すように、軸部 2aに対応する部分を切り欠いた押え治具 4によって重合部 3aを押圧し、上方から超音波ホーン 5を軸部 2aに押し付けて超音波振動を付与し、 軸部 2aを溶融して孔 3bの直径以上に押し潰すことにより、接合部品 2と被接合部品 3とを接合している。このため、接合部品 2は、被接合部品 3の孔 3bに挿通する軸部 2 aを被接合部品 3との位置決めにも使用して 、た。
[0005] 従って、従来の接合体は、接合部品 2と被接合部品 3とを適正に位置決めするため 、被接合部品 3の孔 3bは、設計上、図 11に示すように、軸部 2aとの隙間が小さくなる ように、接合部品 2の軸部 2aよりも僅かに大きく設定されていた。し力も、従来の接合 体は、接合部品 2と被接合部品 3とを接合する場合、軸部 2aに超音波ホーン 5によつ て超音波振動を加えると、軸部 2aの溶融に伴う軟化や接合部品 2と被接合部品 3と の間の摩擦抵抗の著しい低下が生じる。このため、従来の接合体は、接合部品 2と被 接合部品 3との位置が変化し易ぐ軸部 2aと孔 3bの位置がずれてしまうことがあった
[0006] このようなずれが発生すると、接合体は、図 11に示すように、軸部 2aと孔 3bとが接 触した状態で接合部品 2と被接合部品 3とが接合された場合、使用に際して孔 3bと 接触している軸部 2aの部分に応力が高い箇所が発生する。このため、接合体は、長 期に亘つて使用した場合に、孔 3bと接触している軸部 2aにクラック Cが発生して破壊 されてしまうことがあり、長期信頼性の点で問題があった。
[0007] 本発明は、上記に鑑みてなされたものであって、接合部品と被接合部品との位置 決め精度に優れ、接合後、接合部品の軸部への高応力箇所の発生を回避すること が可能な接合体および接合方法を提供することを目的とする。
課題を解決するための手段
[0008] 上述した課題を解決し、目的を達成するために、請求項 1に係る接合体は、溶融軸 部を有する合成樹脂製の接合部品と、前記溶融軸部が挿通される揷通孔が形成さ れた被接合部品とを前記挿通孔に揷通した前記溶融軸部を超音波振動によって溶 融させて接合される接合体であって、前記接合部品と前記被接合部品とは、互いに 嵌合して当該接合部品と当該被接合部品とを位置決めする位置決め部を少なくとも 二箇所に設けたことを特徴とする。
[0009] また、請求項 2に係る接合体は、上記の発明にお 、て、前記各位置決め部は、一 方が前記接合部品に設けられ、他方が前記被接合部品に設けられる凸部と嵌合孔 とであることを特徴とする。
[0010] また、請求項 3に係る接合体は、上記の発明において、前記凸部と前記嵌合孔とを 嵌合させたときに、前記揷通孔と前記溶融軸部との間に形成され、前記揷通孔と前 記溶融軸部との接触を遮断する隙間が前記凸部と前記嵌合孔との間に形成される 隙間よりも大きくなるように、前記揷通孔と前記溶融軸部の直径が設定されていること を特徴とする。 [0011] また、請求項 4に係る接合体は、上記の発明において、前記凸部は、前記接合部 品を所定位置に位置決めする位置決め孔が設けられ、前記凸部、前記嵌合孔及び 前記位置決め孔は、同一の軸上に位置決めされることを特徴とする。
[0012] また、請求項 5に係る接合体は、上記の発明にお 、て、前記接合部品は、当該接 合部品を所定位置に位置決めする位置決め孔が設けられ、前記凸部は、前記位置 決め孔よりも前記溶融軸部に近い位置に設けられていることを特徴とする。
[0013] また、上述した課題を解決し、目的を達成するために、請求項 6に係る接合方法は 、溶融軸部を有する合成樹脂製の接合部品と、前記溶融軸部が挿通される揷通孔 が形成された被接合部品とを前記挿通孔に揷通した前記溶融軸部を超音波振動に よって溶融させて接合する接合方法であって、前記溶融軸部を、前記接合部品の挿 通孔に揷通すると共に、位置決め手段によって前記接合部品と前記被接合部品とを 位置決めする工程と、前記位置決め手段を介して前記接合部品を所定位置に位置 決めする工程と、を含み、前記接合部品と前記被接合部品とを位置決めすると共に、 前記揷通孔と前記溶融軸部との間に前記揷通孔と前記溶融軸部との接触を遮断す る隙間を形成して前記接合部品と前記被接合部品とを接合することを特徴とする。 発明の効果
[0014] 本発明にカゝかる接合体および接合方法は、接合部品と被接合部品とを位置決めす る位置決め部を少なくとも二箇所に設けたので、接合部品と被接合部品とを位置決 めする部分と、接合部品と被接合部品とを接合する部分とが分離され、接合部品と被 接合部品との位置決め精度に優れ、溶融軸部と揷通孔との接触を遮断するのに十 分な隙間を確保することにより、接合後における接合部品の軸部への応力集中を回 避することができるという効果を奏する。
図面の簡単な説明
[0015] [図 1]図 1は、本発明の接合体に係る実施の形態を示す斜視図である。
[図 2]図 2は、本発明の接合体と接合方法を説明する図であり、支持部品の配置部と 、支持部品に対する接合部品と被接合部品の配置を示す斜視図である。
[図 3]図 3は、溶融軸部を、接合部品の挿通孔に揷通すると共に、位置決め手段によ つて接合部品と被接合部品とを位置決めする工程を示す図 2の斜視図である。 圆 4]図 4は、位置決め手段を介して接合部品を所定位置に位置決めする工程を示 す図 2の斜視図である。
[図 5]図 5は、本発明の接合体と接合方法を説明する図であり、支持部品に接合部品 と被接合部品とを配置した状態を押え治具及び超音波ホーンと共に示した断面図で ある。
[図 6]図 6は、溶融軸部を溶融して頭部を押し潰すことにより接合部品と被接合部品と を接合した断面図である。
[図 7]図 7は、本発明の接合体の変形例を示す断面図である。
[図 8]図 8は、従来の接合体と接合方法を説明する図であり、支持部品の配置部と、 支持部品に対する接合部品と被接合部品の配置を示す斜視図である。
[図 9]図 9は、溶融軸部を接合部品の挿通孔に揷通して位置決めする工程を示す図
8の斜視図である。
[図 10]図 10は、接合部品を押え治具で支持部品に保持した状態を超音波ホーンと 共に示す図 8の斜視図である。
[図 11]図 11は、接合部品の軸部を溶融し、軸部の頭部を潰すことにより、接合部品と 被接合部品とを接合する工程を示す断面図である。
符号の説明
10 接合体
11 接合部品
11a 本体
l ib 脚
11c 溶融軸部
l id, l ie 凸部
l lf 位置決め孔
l lg, H 位置決め孔
12 被接合部品
12a 着ム
12b 本体 12c 揷通孔
12d, 12e 嵌合孔
12f 係合孔
13 ベース治具
13a 配置部
13b, 13c 位置決めピン
発明を実施するための最良の形態
[0017] 以下、本発明の接合体および接合方法に係る実施の形態について、図面を参照し て詳細に説明する。図 1は、本発明の接合体を示す斜視図である。
[0018] 接合体 10は、図 1に示すように、接合部品 11と被接合部品 12が、接合部品 11の 溶融軸部 11cを溶融し、溶融軸部 11cの頭部を押し潰すことにより接合されている。
[0019] 接合部品 11は、合成樹脂から成形され、図 1に示すように、本体 11aの両側に短い 脚 l ibが設けられ、本体 11aの上面には、中央に溶融軸部 11c (図 2参照）が、溶融 軸部 11cの両側に凸部 l id, l ie (図 2参照）が、それぞれ設けられている。凸部 l id は、凸部 l ieよりも直径が大きく成形され、中央には位置決め孔 1 Ifが設けられてい る。凸部 l id, l ieは、嵌合孔 12d, 12eと嵌合したときに重合部 12aから僅かに突出 する長さに設定されている。また、接合部品 11は、凸部 l ieから脚 l ib側に変位した 位置に位置決め孔 1 lgが設けられている。
[0020] 被接合部品 12は、合成樹脂製の重合部 12aと金属製の本体 12bを有している。重 合部 12aは、接合部品 11に重ね合わせられる部分で、中央に揷通孔 12cが形成さ れている。また、重合部 12aは、揷通孔 12cの両側の凸部 l id, l ieと対応する位置 に嵌合孔 12d, 12eが設けられ、位置決め孔 l lgと対応する位置に係合孔 12fが設 けられている。ここで、嵌合孔 12d, 12eは、凸部 l id, l ieと嵌合することによって接 合部品 11と被接合部品 12とを位置決めする位置決め部であり、少なくとも二箇所に 設けられていればよい。
[0021] 接合体 10は、接合部品 11と被接合部品 12とを以下のように接合して構成される。
先ず、接合部品 11をベース治具に配置する。このとき、接合部品 11は、図 2に示す ように、ベース治具 13に形成した溝状の配置部 13aに配置する。ここで、配置部 13a は、位置決め孔 1 Ifと係合する位置決めピン 13bと、位置決め孔 l lgと係合する位置 決めピン 13cが設けられ、位置決めピン 13b, 13cによって、接合部品 11をベース治 具 13に対して位置決めする。
[0022] 次に、ベース治具 13に配置した接合部品 11の上方から、被接合部品 12の重合部 12aを重ね合わせ、溶融軸部 11cに揷通孔 12cを挿通させると共に、嵌合孔 12d, 1 2eに凸部 l id, l ieを嵌合する（図 3参照)。これにより、被接合部品 12が、接合部品 11に対して位置決めされる。このとき、被接合部品 12は、 2箇所の嵌合孔 12d, 12e に凸部 l id, l ieがそれぞれ嵌合され、 2箇所で接合部品 11に対して位置決めされ るので、溶融軸部 11c廻りの回転が規制される。また、接合部品 11は、凸部 l id, 11 eが被接合部品 12の嵌合孔 12d, 12eから僅か〖こ突出する。
[0023] 次いで、図 4及び図 5に示すように、嵌合孔 12d, 12eから僅かに突出している凸部 l id, l ieのそれぞれに上方力 突起 15a, 15bを当接させ、接合部品 11を押え治 具 15によってベース治具 13に押圧する。これにより、接合部品 11は、被接合部品 1 2を位置決めした状態で、押え治具 15によってベース治具 13に保持される。
[0024] この状態で、超音波ホーン 16を上方から溶融軸部 11cに押し付けて超音波振動を 付与する。これにより、図 5に示すように、溶融軸部 11cを溶融し、溶融軸部 11cの頭 部を超音波ホーン 16によって揷通孔 12cの直径以上に押し潰すことにより（図 6参照 )、接合部品 11と被接合部品 12とを接合して接合体 10とする。
[0025] このとき、接合部品 11と被接合部品 12は、凸部 l id, l ieと嵌合孔 12d, 12eとを 嵌合させることによって互いに位置決めされる。このため、被接合部品 12は、嵌合孔 12d, 12eを高精度に形成して凸部 l id, l ieとの隙間を小さくする必要がある。これ に対し、揷通孔 12cは、溶融軸部 11cを挿通し、溶融した溶融軸部 11cの頭部を押し 潰して係合させればよい。このため、本発明の接合体および接合方法によれば、溶 融軸部 11cと揷通孔 12cとは、図 5に示すように、接合部品 11と被接合部品 12との 接合後に溶融軸部 11cと揷通孔 12cとの接触を遮断する隙間が生じる直径に設定 する。即ち、溶融軸部 11cと揷通孔 12cとは、図 5に示すように、溶融軸部 11cとの間 の隙間 C1が嵌合孔 12dと凸部 l idとの間の隙間 C2よりも大きくなるように直径を設定 する（C1 >C2)。このとき、溶融軸部 11cと揷通孔 12cとの間の隙間 C1は、嵌合孔 12 dと凸部 l idとの間の隙間 C2の 5〜15倍、より好ましくは、 7〜12倍、最も好ましくは 8 〜10倍とする。溶融軸部 11cと揷通孔 12cとの間の隙間 C1は、嵌合孔 12dと凸部 11 dとの間の隙間 C2の 5倍よりも小さくなると、超音波ホーン 16によって溶融軸部 11cを 溶融したときに、溶融軸部 11cが揷通孔 12cに当接してしまうという不具合がある。一 方、溶融軸部 11cと揷通孔 12cとの間の隙間 C1は、嵌合孔 12dと凸部 l idとの間の 隙間 C2の 15倍を超えると、揷通孔 12cの直径以上に押し潰す溶融軸部 11cの長さ が長くなり、接合作業に時間が力かるという不具合がある。
[0026] 従って、本発明の接合体 10および接合方法は、接合部品 11と被接合部品 12との 接合に際し、超音波振動を付与することによって溶融軸部 11cが溶融して軟ィ匕しても 、凸部 l id, l ieと嵌合孔 12d, 12eとの嵌合によって互いに位置決めされていること 力も接合部品 11と被接合部品 12との位置が変化することはない。このため、接合部 品 11と被接合部品 12は、溶融によって溶融軸部 11cの直径が増加したとしても、溶 融軸部 11cと揷通孔 12cとの間に互いの接触を遮断するのに十分な隙間を保持した 状態で接合される。この結果、本発明の接合体 10および接合方法は、接合部品 11 と被接合部品 12との接合後の使用に際し、溶融軸部 11cに重合部 12aから応力が 作用せず、溶融軸部 11cに応力に起因したクラックが発生することはない。従って、 本発明の接合体 10および接合方法は、長期に亘つて高い信頼性の下に使用するこ とがでさる。
[0027] また、本発明の接合体 10および接合方法は、図 5に示すように、位置決め孔 12d に嵌合した凸部 l idの位置決め孔 1 Ifにベース治具 13の位置決めピン 13bが係合 し、位置決めピン 13b、位置決め孔 l lf及び位置決め孔 12dが同一の軸 A上に位置 決めされる。このため、接合体 10は、接合部品 11と被接合部品 12が位置決めピン 1 3bを基準として寸法を管理され、凸部 l id, l ieと嵌合孔 12d, 12eとの間のずれが 小さくなり、位置決め精度が向上するという効果を奏する。
[0028] さらに、本発明の接合体 10および接合方法は、接合部品 11を押え治具 15によつ てベース治具 13に直接押圧した状態で、超音波ホーン 16を上方力も溶融軸部 11c に押し付けて超音波振動を付与することにより、接合部品 11と被接合部品 12とを接 合している。このため、被接合部品 12は、溶融軸部 11cに付与される超音波振動が 接合部品 11から伝わることがない。これに対して、従来の接合体は、図 11に矢印で 示すように、押え治具 4は、被接合部品 3を介して接合部品 2をベース治具 1に押圧 しており、接合部品 2と被接合部品 3とが密着している。このため、従来の接合体は、 軸部 2aに付与される超音波振動が接合部品 2から被接合部品 3に伝播してしま 、、 軸部 2aに付与した超音波振動のエネルギーロスが生じ、軸部 2aの溶融が不十分と なって接合が不安定になり、被接合部品 3が金属部分や電子部品を搭載した基板を 含む場合には、金属部分や前記基板が共振して被接合部品 3や電子部品が損傷し てしまうことがあった。
[0029] このように、本発明の接合体 10は、超音波ホーン 16によって溶融軸部 11cに付与 される超音波振動が接合部品 11から被接合部品 12に伝わることがない。このため、 接合体 10は、従来の接合体と比べると、溶融軸部 11cが十分に溶融した状態で接 合部品 11と被接合部品 12が接合されるので、安定して接合することが可能になるう え、被接合部品 12が金属部分や電子部品を搭載した基板を含む場合に、溶融軸部 11cに超音波振動を付与しても、被接合部品 12や電子部品が超音波振動によって 損傷することはない。
[0030] ここで、本発明の接合体および接合方法は、押え治具 15の突起 15a, 15bによつ て凸部 l id, l ieを押圧し、接合部品 11を支持部品 13に保持した。そして、溶融軸 部 11cに超音波振動を付与して溶融軸部 11cを溶融し、溶融軸部 11cの頭部を揷通 孔 12cの直径以上に押し潰すことにより、接合部品 11と被接合部品 12とを接合した 。このとき、接合部品 11は、押え治具 15によって押圧する凸部 l id, l ieが、溶融軸 部 11cに近い方が押圧状態が安定し、超音波ホーン 16によって安定して接合するこ とが可能になる。
[0031] このため、接合部品 11は、図 7に示すように、凸部 l id, l ieを位置決め孔 l lg, 1 lhよりも溶融軸部 11cに近い位置に設けることが好ましい。このとき、接合部品 11と 被接合部品 12は、位置決めピン 13bを位置決め孔 l lh, 12gに係合させると共に、 位置決めピン 13cを位置決め孔 l lg, 12fに係合させることよって位置決めする。
[0032] 尚、上述の実施の形態においては、接合部品 11は、凸部 l id, l ieの長さを嵌合 孔 12d, 12eと係合したときに重合部 12aから僅かに突出する長さに設定した。しかし 、接合部品 11は、凸部 l id, l ieを押え治具 15の突起 15a, 15bによって押圧する ことができれば、必ずしも重合部 12aから僅かに突出する長さに設定する必要はない
[0033] また、接合部品 11は、位置決め部を凸部 l id, l ieとし、被接合部品 12は、凸部 1 Id, 1 leと係合して被接合部品 12を接合部品 11に対して位置決めする嵌合部を嵌 合孔 12d, 12eとした。しかし、溶融軸部 11cに超音波振動を付与した際に、接合部 品 11が動かな 、ように押え治具 15によって押圧することができれば、接合部品 11は 、位置決め部を位置決め孔とし、被接合部品 12は、嵌合部を凸部としてもよい。この とき、被接合部品 12は、凸部にベース治具 13の位置決めピン 13b, 13cと係合する 係合孔を設ける。また、接合部品 11は、位置決め孔 l lf, l lgを位置決めピン 13b, 13cと係合させることによってベース治具 13に位置決めした。しかし、ベース治具 13 に位置決め凹部を設け、接合部品 11に位置決め凹部と係合する係合凸部を設けて ちょい。
産業上の利用可能性
[0034] 以上のように、本発明にカゝかる接合体および接合方法は、合成樹脂から成形され た接合部品に、金属や合成樹脂等カゝらなる被接合部品を接合して接合体を製造す るのに有用であり、特に、接合部品と被接合部品との位置決め精度に優れ、接合後 、接合部品の軸部への高応力箇所の発生を回避して接合体を製造するのに適して いる。

Claims

請求の範囲
[1] 溶融軸部を有する合成樹脂製の接合部品と、前記溶融軸部が挿通される揷通孔 が形成された被接合部品とを前記挿通孔に揷通した前記溶融軸部を超音波振動に よって溶融させて接合される接合体であって、
前記接合部品と前記被接合部品とは、互いに嵌合して当該接合部品と当該被接 合部品とを位置決めする位置決め部を少なくとも二箇所に設けたことを特徴とする接 合体。
[2] 前記各位置決め部は、一方が前記接合部品に設けられ、他方が前記被接合部品 に設けられる凸部と嵌合孔とであることを特徴とする請求項 1に記載の接合体。
[3] 前記揷通孔と前記溶融軸部とは、前記凸部と前記嵌合孔とを嵌合させたときに、前 記揷通孔と前記溶融軸部との間に形成され、前記揷通孔と前記溶融軸部との接触を 遮断する隙間が前記凸部と前記嵌合孔との間に形成される隙間よりも大きくなるよう に、前記揷通孔と前記溶融軸部の直径が設定されて ヽることを特徴とする請求項 2 に記載の接合体。
[4] 前記凸部は、前記接合部品を所定位置に位置決めする位置決め孔が設けられ、 前記凸部、前記嵌合孔及び前記位置決め孔は、同一の軸上に位置決めされること を特徴とする請求項 2又は 3に記載の接合体。
[5] 前記接合部品は、当該接合部品を所定位置に位置決めする位置決め孔が設けら れ、
前記凸部は、前記位置決め孔よりも前記溶融軸部に近い位置に設けられているこ とを特徴とする請求項 2又は 3に記載の接合体。
[6] 溶融軸部を有する合成樹脂製の接合部品と、前記溶融軸部が挿通される揷通孔 が形成された被接合部品とを前記挿通孔に揷通した前記溶融軸部を超音波振動に よって溶融させて接合する接合方法であって、
前記溶融軸部を、前記接合部品の挿通孔に揷通すると共に、位置決め手段によつ て前記接合部品と前記被接合部品とを位置決めする工程と、
前記位置決め手段を介して前記接合部品を所定位置に位置決めする工程と、 を含み、 前記接合部品と前記被接合部品とを位置決めすると共に、前記揷通孔と前記溶融 軸部との間に前記揷通孔と前記溶融軸部との接触を遮断する隙間を形成して前記 接合部品と前記被接合部品とを接合することを特徴とする接合方法。
PCT/JP2006/304266 2005-03-31 2006-03-06 接合体および接合方法 WO2006112183A1 (ja)

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US8833418B2 (en) 2009-08-24 2014-09-16 The Hong Kong Polytechnic University Method and system for bonding electrical devices using an electrically conductive adhesive

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EP1864783A4 (en) 2011-09-28
US20090263183A1 (en) 2009-10-22
KR100884366B1 (ko) 2009-02-17
KR20070108273A (ko) 2007-11-08
JP2006281599A (ja) 2006-10-19
JP4080492B2 (ja) 2008-04-23
US8113735B2 (en) 2012-02-14
EP1864783A1 (en) 2007-12-12
CN101160204A (zh) 2008-04-09
CN101160204B (zh) 2010-05-26

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