WO1990007421A2 - Ultrasonic securing system - Google Patents
Ultrasonic securing system Download PDFInfo
- Publication number
- WO1990007421A2 WO1990007421A2 PCT/US1989/005757 US8905757W WO9007421A2 WO 1990007421 A2 WO1990007421 A2 WO 1990007421A2 US 8905757 W US8905757 W US 8905757W WO 9007421 A2 WO9007421 A2 WO 9007421A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spheroid
- aperture
- horn
- tip
- fusible material
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 15
- 229920001169 thermoplastic Polymers 0.000 claims description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 12
- 230000013011 mating Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- 244000191761 Sida cordifolia Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
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- 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
- B29C65/601—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
- B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold 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
- B29C66/70—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
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/81431—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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/863—Robotised, e.g. mounted on a robot arm
-
- 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
- B29C65/601—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined
- B29C65/603—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined the rivets being pushed in blind holes
-
- 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
- B29C66/40—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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/737—Articles provided with holes, e.g. grids, sieves
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- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1744—Means bringing discrete articles into assembled relationship
- Y10T156/1776—Means separating articles from bulk source
Definitions
- the present invention relates generally to a system for securing component parts together, and particularly to such a system that is especially useful for securing 10 parts made of dissimilar materials.
- U. S. Patent No. 3,483,611 to Bala uth et al. discloses methods and apparatus for ultrasonically staking and riveting component parts together.
- U. S. Patent No. 4,106,962 to Adams et al. discloses a method for ultrasonically securing metallic and 5 thermoplastic parts together, wherein ultrasonic energy is applied to an apertured depression in the metallic part while the depression is pressed against the thermoplastic part, causing an adjacent portion of the thermoplastic part to soften, flow through the 0 aperture, fill the depression therearound, and thereby lock the two parts together upon cooling.
- Fig. 1 of the drawings herein illustrates a process, known in the prior art as conventional 5 ultrasonic staking, which fuses parts together by using heat generated from contact together with mechanical pressure and high—frequency sound waves.
- ultrasonic staking it is necessary that one of the parts, such as substrate 1., be made of a
- the stake 2 is a raised feature on substrate 1. Hole 3_ is provided in mating part 4 to fit over stake 2. After mating part 4 is properly aligned with substrate 1, stake 2 is heated by means of an ultrasonic horn .5.
- SUBSTITUTE SHEET an automated assembly process, they do offer some advantages.
- the advantages of both of those methods are achieved by the new system of this invention using an ultrasonic spherical rivet, or spheroid, to secure component parts together.
- the spheroid needs a hole only in the mating part.
- the underlying part, or substrate is featureless.
- the spheroid is a separate piece that is used to hold the two joined parts together.
- orientation of the spheroid is not necessary.
- Ultrasonic spherical rivets, or spheroids, as provided by this invention are thus well suited for automated processes because: (1) their shape eliminates the orientation requirement;
- the present invention finds utility in a system for securing a first part to a second part via a spheroid, the first part having an aperture therein slightly smaller than the spheroid, the second part and the spheroid each including ultrasonically fusible material.
- This system comprises means for supporting the first and second parts in superposed relation, so that the aperture in the first part overlies a portion of the second part; means for containing the spheroid among a plurality thereof; and means, including a movable and activatable concentrating horn, for applying ultrasonic energy to the spheroid, the horn having a tip thereon provided with means for receiving and releasably retaining the spheroid.
- the system also comprises means for moving the horn from a first site adjacent to the containing means, where the tip is disposed to receive and releasably retain the spheroid, to a second site adjacent to the supporting means, where the tip is disposed to deposit and release the spheroid in the aperture so that a portion of the spheroid extends therethrough into contact with the underlying portion of the second part.
- the system further comprises means for activating the horn to ultrasonically vibrate its tip against the spheroid, and thereby impart ultrasonic energy to both the spheroid and the underlying portion of the second part, so as to heat—soften the spheroid and the underlying portion of the second part and thus cause the spheroid fusible material to flow through the aperture and fuse with the second part fusible material, whereby the first part, via the spheroid, is secured to the second part.
- Fig. 1 is an elevational view, partly in section, illustrating conventional ultrasonic staking as known in the prior art
- Fig. 2 is an elevational view, partly in section similar to Fig. 1, but illustrating an embodiment of the ultrasonic spherical riveting system of this invention
- SUBSTITUTE SHEET Fig. 3 is a cross—sectional elevation illustrating the parts shown in Fig. 2 after they have been joined together;
- FIGs. 4 and 5 depict stages in the illustrated embodiment preceding that shown in Fig. 2;
- Fig. 6 is a pictorial perspective view illustrating an automated embodiment of an ultrasonic spherical riveting system in accordance with the present invention.
- FIG. 2 Shown in Fig. 2 is an ultrasonic spherical rivet, or spheroid, 1J) made of an ultrasonically fusible thermoplastic material for bonding to an ultrasonically fusible thermoplastic substrate 1_2.
- An ultrasonic horn 14 has a hemispherical depression JL in its tip that is formed to fit over the spheroid 10. Vacuum V is applied to depression 16 to pick up and releasably retain spheroid 10 from a supply of spheroids held in a container C (shown in Fig. 4).
- Horn 14 which could be mounted on the end of a robot arm A (shown in Fig. 6), is then positioned over the part .20 that is to be joined to substrate 12 (as shown in Fig. 5).
- a circular hole or aperture 22 slightly smaller than
- SUBSTITUTE SHEET the spheroid is provided in part 20. Horn 14 is then lowered to deposit spheroid 10 in hole 22 so that a lower portion of the spheroid extends through the hole and into contact with the underlying portion of the substrate.
- Ultrasonic energy also is transferred to substrate 12, and it too begins to melt.
- the melting action fuses the spheroid to the substrate.
- Horn 14 is then deactivated.
- horn 14 is retracted, leaving part 20 firmly secured to substrate 12 by the combination 11 comprising fused spheroid portion 11a and fused substrate portion lib (as shown in Fig. 3).
- the fused spheroid portion 11a has completely filled hole 22 and overlaps an adjacent surrounding portion of part 20, thus positively locking the joined parts together.
- Fig. 6 illustrates an automated embodiment of this invention, wherein a robot R, with horn 14 mounted on arm A thereof, moves the horn from container C, along movement path M, to a site immediately above part 20 superposed upon substrate 12 (not shown) at work station W.
- the ultrasonic spherical rivet, or spheroid, of this invention offers some very useful advantages over both conventional riveting and ultrasonic staking.
- Conventional riveting requires holes in both parts to be joined; the spheroid of this invention requires a hole in only one of those parts. This feature thus eliminates any need for hole alignment.
- conventional rivets must be oriented correctly before being used; the spheroid's symmetry eliminates that need.
- Ultrasonic staking requires special preforming or prefabrication of the substrate; the spheroid works with an unfeatured substrate, and design changes do not entail any special treatment of the substrate.
- Ultrasonic spherical rivets, or spheroids are thus well suited for use in automated parts—assembly systems.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP90502103A JPH03502788A (en) | 1988-12-23 | 1989-12-21 | Ultrasonic fixation device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US288,936 | 1981-07-31 | ||
US07/288,936 US4865680A (en) | 1988-12-23 | 1988-12-23 | Ultrasonic securing system |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1990007421A2 true WO1990007421A2 (en) | 1990-07-12 |
WO1990007421A3 WO1990007421A3 (en) | 1990-08-23 |
Family
ID=23109302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1989/005757 WO1990007421A2 (en) | 1988-12-23 | 1989-12-21 | Ultrasonic securing system |
Country Status (4)
Country | Link |
---|---|
US (1) | US4865680A (en) |
EP (1) | EP0407540A1 (en) |
JP (1) | JPH03502788A (en) |
WO (1) | WO1990007421A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014216007A1 (en) * | 2014-08-13 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component connection |
DE102014216006A1 (en) * | 2014-08-13 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component connection |
DE102014216002A1 (en) * | 2014-08-13 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Sonotrode, method for welding a ball and component connection |
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DE102014216007A1 (en) * | 2014-08-13 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component connection |
DE102014216006A1 (en) * | 2014-08-13 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component connection |
DE102014216002A1 (en) * | 2014-08-13 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Sonotrode, method for welding a ball and component connection |
US10245790B2 (en) | 2014-08-13 | 2019-04-02 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component connection |
US10252469B2 (en) | 2014-08-13 | 2019-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component connection |
DE102014216007B4 (en) | 2014-08-13 | 2020-07-23 | Bayerische Motoren Werke Aktiengesellschaft | Method of making a component connection |
DE102015211004A1 (en) * | 2015-06-16 | 2016-12-22 | Bayerische Motoren Werke Aktiengesellschaft | Method for welding a connecting element, in particular a ball, on a component |
DE102015211004B4 (en) * | 2015-06-16 | 2020-11-12 | Bayerische Motoren Werke Aktiengesellschaft | Method for welding a connecting element, in particular a ball, onto a component |
Also Published As
Publication number | Publication date |
---|---|
JPH03502788A (en) | 1991-06-27 |
EP0407540A1 (en) | 1991-01-16 |
US4865680A (en) | 1989-09-12 |
WO1990007421A3 (en) | 1990-08-23 |
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