EP1958715A1 - Verfahren zum Zusammenbau von mindestens zwei Elementen mit Hilfe eines Blindniets - Google Patents

Verfahren zum Zusammenbau von mindestens zwei Elementen mit Hilfe eines Blindniets Download PDF

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Publication number
EP1958715A1
EP1958715A1 EP08354008A EP08354008A EP1958715A1 EP 1958715 A1 EP1958715 A1 EP 1958715A1 EP 08354008 A EP08354008 A EP 08354008A EP 08354008 A EP08354008 A EP 08354008A EP 1958715 A1 EP1958715 A1 EP 1958715A1
Authority
EP
European Patent Office
Prior art keywords
rivet
stamping
crimping
elements
barrel
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.)
Granted
Application number
EP08354008A
Other languages
English (en)
French (fr)
Other versions
EP1958715B1 (de
Inventor
Philippe Gory
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.)
Bollhoff Otalu SA
Original Assignee
Bollhoff Otalu SA
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 Bollhoff Otalu SA filed Critical Bollhoff Otalu SA
Publication of EP1958715A1 publication Critical patent/EP1958715A1/de
Application granted granted Critical
Publication of EP1958715B1 publication Critical patent/EP1958715B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • Y10T29/49917—Overedge assembling of seated part by necking in cup or tube wall
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/49943—Riveting
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49947—Assembling or joining by applying separate fastener
    • Y10T29/49954—Fastener deformed after application
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49947—Assembling or joining by applying separate fastener
    • Y10T29/49954—Fastener deformed after application
    • Y10T29/49956—Riveting
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53717—Annular work
    • Y10T29/53726—Annular work with second workpiece inside annular work one workpiece moved to shape the other
    • Y10T29/5373—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/5377—Riveter
    • 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
    • Y10T403/4966—Deformation occurs simultaneously with assembly

Definitions

  • a known assembly method conventionally uses a rivet, type blind rivet crimp with incorporated rod.
  • a rivet 10 conventionally comprises a head 11 and a body 12 intended to be deformed to produce a crimping bead for blocking the panels assembled between said bead and the head 11.
  • the rivet 10 also comprises a rod 13 incorporated, intended for to be introduced into an associated laying tool (not shown on the figure 1 ), intended to perform the crimping operation.
  • the assembly method of the two elements then comprises the insertion of the rivet 10 in corresponding orifices of the elements to be assembled. Then, the rod 13 is inserted into one end of the laying tool, in order to perform the crimping step of the rivet. After crimping, the rod 13 is eliminated by rupture substantially at the head 11 of the rivet 10.
  • the document US3838499 discloses a method of joining two elements by means of a rivet, in which a pulling rod of a setting tool is stamped onto a part of the rivet shaft, and then the rivet is inserted into the holes corresponding elements to be assembled.
  • the process ends with a crimping step of the rivet and a step of separating the rivet setting tool.
  • the crimping step is performed by radial deformation of the part of the barrel on which the stamping has been applied.
  • the step of separating the tool is practiced at the same time as the crimping step because the radial deformation creating the crimping bead is accompanied simultaneously by a progressive decrease in the tensile strength.
  • the separation step is prolonged after the end of the crimping step by a axial tearing of the inner face of the stamped portion of the barrel.
  • the separation step comprises firstly a first simultaneous sub-step at the crimping step and performed by radial deformation of the portion of the barrel on which the stamping has been applied, and secondly a second sub-step performed after the step of crimping by axial tearing of the inner face of the stamped portion of the barrel.
  • This assembly method is not completely satisfactory because the second substep of the separation step may cause deterioration of the assembly carried out beforehand during the crimping step, in particular deterioration of the quality of the bead. crimping since it is made by deformation of the stamped part of the rivet shaft, where the axial tearing occurs.
  • the object of the invention is to improve the existing assembly processes.
  • the method of the invention is remarkable in that the step of separating the rivet setting tool is performed after the crimping step of the rivet, by radial deformation of the portion of the rivet shaft, on which was applied matrixing.
  • the assembly method of the invention allows a sequential installation of the rivet by successively producing a first radial deformation for the crimping step and a second radial deformation, different from the first, for the separation step.
  • a crimping bead is produced by a radial deformation of a part of the barrel interposed between the head and the part of the barrel on which the stamping.
  • the stamping step is performed at the free end of the rivet shaft to a predetermined height.
  • the assembly method according to the invention is in particular intended to assemble at least two elements 14, 15, for example panels, plates or the like, by means of a crimp rivet 16 and a setting tool 17 ( figures 2 and 4 ).
  • the principle of the assembly method according to the invention consists in particular in hanging by stamping part of the rivet 16 on a pull rod 18 of the laying tool 17, before insertion of the rivet 16 into orifices 19, 20, respectively, elements 14, 15 to be assembled and crimped of the rivet 16, in order to guarantee the assembly of the two elements 14, 15.
  • the rivet 16 used for the assembly process is a conventional rivet comprising a flat head 21 and a barrel 22, preferably cylindrical, pierced and open ( figure 2 ) and preferably comprising a stamping zone 23 inside the barrel 22.
  • the rivet 16 is made of a material capable of deforming for the stamping operation, for example steel, stainless steel, brass or aluminum.
  • the laying tool 17 comprises an anvil 24, placed on either side of the pull rod 18 and intended to bear on the head 21 of the rivet 16 during the assembly of the two elements 14 and 15.
  • the pull rod 18 is intended to be inserted inside the rivet 16 and has an end 25, for example, grooved.
  • the stamping operation for fastening the rivet 16 on the pull rod 18 is performed at the free end of the barrel 22 of the rivet 16, opposite the head 21, so as to cooperate in particular with the end 25. grooved of the pull rod 18 ( figure 3 ).
  • the shaft 22 of the rivet 16 may be blind and / or may comprise an outer shoulder, located under the head 21 of the rivet 16.
  • the head 21 of the rivet 16 may be thin or milled and the rod Traction 18 may have a threaded or conical end.
  • the first step of the process consists in positioning the head 21 of the rivet 16 against the anvil 24, for example steel, of the laying tool 17 and to position the rivet 16 in a stamping tool 26, formed, for example, of two or more steel sectors, shaped according to the desired shape of the stamping on the rivet 16.
  • the following step consists in performing the stamping operation, that is to say applying a radial force according to the arrows F1, on the outer surface of the shaft 22 of the rivet 16 and on a predefined height, corresponding in particular to the height of the sectors of the stamping tooling 26.
  • the stamping step makes it possible to hang the rivet 16 on the pull rod 18 of the setting tool 17, the material inside the rivet 16 being placed in the grooves of the end 25 of the traction rod 18 of the laying tool 17.
  • the stamping height corresponds substantially to the height of the end 25 of the pull rod 18 of the laying tool 17 and the stamping zone 23 inside the barrel 22 of the rivet 16.
  • the end of the stamping step is in particular determined by the contacting of the sectors of the stamping tool 26.
  • the rivet 16 thus hooked on the pull rod 18 is then removed from the stamping tool 26 and placed in the corresponding orifices 19, 20 of the elements 14 and 15 to be assembled.
  • the diameter of the orifices 19, 20 of the elements 14, 15 is chosen to be slightly greater than the diameter of the shaft 22 of the rivet 16.
  • the height of the rivet 16 is also calculated, so that the sum of the thicknesses of the elements 14 and 15 to be assembled is compatible with the crimping operation of the rivet 16, namely with the creation of a crimping bead as described below.
  • the height of the shank 22 is such that after the stamping operation, there remains an undeformed part of the shank 22 interposed between the head 21 and the shank portion 22 on which the stamping has been applied, the non-deformed part whose height is greater than the sum of the thicknesses of the elements 14 and 15.
  • the difference between the height of the undeformed portion and the sum of the thicknesses of the elements 14 and 15 is chosen to allow the subsequent creation of a crimping bead.
  • the next step of the method is the crimping step of the rivet 16 in the elements 14, 15 to be assembled.
  • the crimping step consists in applying a traction force, according to the arrow T1, on the traction rod 18 in opposition to the application of a compressive force, according to the arrows C1, of the anvil 24 on the head 21 of the rivet 16, so as to obtain a crimping bead 27, characteristic of the crimping operation.
  • the bead 27, formed under the element 15, is then intended to block the two elements 15, 16 against each other and between itself and the head 21 of the rivet 16.
  • the height of the barrel 22 of the rivet 16 and the stamped area of the rivet 16 on the pull rod 18 are in particular calculated, so that the shaft 22 retains a height sufficient to be deformed to obtain the crimping bead 27, as shown in FIG. figure 5 : in the crimping step, the crimping bead 27 is formed by a radial deformation of a portion of the barrel 22 interposed between the head 21 and the portion of the barrel 22 on which the stamping has been applied. More specifically, the crimping bead 27 is generated by radial deformation of a segment of the undeformed barrel portion 22 during the stamping step, namely the segment directly adjacent to the barrel portion 22 on which has been applied. matrixing.
  • the remaining segment of the barrel portion 22 undeformed during the stamping step namely the segment interposed between the head 21 and the crimping bead 27, has a height substantially equal to the sum of the thicknesses of the elements 14, 15 and remains intact in the crimping step.
  • the assembly method then comprises a step of separating the setting tool 17 from the rivet 16.
  • the separation step consists of applying a pulling force, according to the arrow T2, on the traction rod 18 of the setting tool 17 and a compressive force, according to the arrows C2, on the anvil 24, different from the traction forces (arrow T1) and compression (arrows C1) of the crimping step shown on the figure 5 .
  • the separation step occurs in particular from a calibrated force of the laying tool 17.
  • the traction force according to the arrow T2 ( figure 6 ) is greater than the tractive force according to arrow T1 ( figure 5 ) and the compression force according to arrows C2 ( figure 6 ) is preferably greater than the compression force according to the arrows C1 ( figure 5 ).
  • Such a calibration with different tensile and compressive forces according to the steps of the method make it possible in particular to guarantee optimal crimping of the rivet 16 in the two elements 14 and 15.
  • the step of separating the setting tool 17 and the rivet 16 may comprise an additional step of unscrewing the pull rod 18. , in order to carry out the complete extraction of the pull rod 18 of the rivet 16 after the radial deformation of the part barrel 22 on which the stamping was applied. It is thus possible to use the rivet 16 with an additional nut function.
  • the laying tool 17 is completely removed from the rivet 16.
  • the two elements 14, 15 are then firmly assembled, the rivet 16 being optimally held in position in the corresponding orifices 19, 20 of the elements 14, 15 now assembled.
  • Such an assembly method according to the invention therefore uses a stamping principle allowing, on the one hand, to hang the rivet 16 effectively and quickly on the pull rod 18 and, on the other hand, to fix firmly the rivet 16 in the elements to be assembled, to ensure optimal assembly.
  • the assembly method according to the invention also uses a principle of extraction of the rivet 16 of the setting tool 17 after crimping, simple, fast and without damage to the assembly carried out beforehand.
  • the laying tool 17 used for such an assembly method is easy to use regardless of the shape of the end 25 of the pull rod 18.
  • the rivet 16 used for the assembly method according to the invention is a simple rivet, consisting of a simple hollow metal part comprising a head and a hollow tubular shaft, without an incorporated traction system, namely an internal thread. or a rod.
  • the dimensions and material of the rivet 16 are able to withstand and adapt to the stamping treatment, that is to say that they are adapted so that the rivet can be installed in any type of applications requiring the Rivet blind rivet type rivet.
  • the height and the depth of the stamping performed on the shaft 22 of the rivet 16 are such as to guarantee a sequential laying of the rivet 16, first of all by crimping the rivet 16 in the elements 14 and 15, then the extraction of the pull rod 18, without breaking the rivet 16 or the pull rod 18 of the laying tool 17.
  • the sequential laying of the rivet 16 is practiced by successively producing a first radial deformation (bead crimping device 27) for the crimping step, then a second radial deformation, axially offset from the first deformation, for the separation step.
  • the separation step performed by deformation of the part on which the stamping has been applied causes no damage to the crimping bead 27 because it is axially distant from the part on which the stamping has been applied.
  • the invention is not limited to the embodiment described above.
  • the rivet 16 may be made of any material capable of deforming by stamping.
  • the dimensions and shapes of the rivet 16 (head 21 and shaft 22) and of the laying tool 17 are nonlimiting and depend in particular on the dimensions of the elements 14, 15 to be assembled and the intended applications.
  • the use of a blind rivet 16 allows in particular to ensure a total sealing function between the two elements 14 and 15 to be assembled, possibly with the addition of an attached or overmolded seal or a plastic washer under the head 21 of rivet 16 one-eyed.
  • the length of the rivet 16 and the height of the die formed on its shaft 22 depend in particular on the diameter of the rivet 16 and the thickness of the elements 14, 15 to be crimped.
  • the rivet 16 can be hooked on the pull rod 18 of the setting tool 17 by any type of stamping process, namely any type of cold deformation of the material of the rivet 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)
  • Connection Of Batteries Or Terminals (AREA)
EP08354008A 2007-02-13 2008-01-25 Verfahren zum Zusammenbau von mindestens zwei Elementen mit Hilfe eines Blindniets Active EP1958715B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0701015A FR2912333B1 (fr) 2007-02-13 2007-02-13 Procede d'assemblage d'au moins deux elements par l'intermediaire d'un rivet a sertir

Publications (2)

Publication Number Publication Date
EP1958715A1 true EP1958715A1 (de) 2008-08-20
EP1958715B1 EP1958715B1 (de) 2009-10-07

Family

ID=38432828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08354008A Active EP1958715B1 (de) 2007-02-13 2008-01-25 Verfahren zum Zusammenbau von mindestens zwei Elementen mit Hilfe eines Blindniets

Country Status (8)

Country Link
US (1) US8001670B2 (de)
EP (1) EP1958715B1 (de)
CN (1) CN101244447B (de)
AT (1) ATE444820T1 (de)
BR (1) BRPI0800096A (de)
DE (1) DE602008000184D1 (de)
ES (1) ES2332837T3 (de)
FR (1) FR2912333B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151267A1 (en) 2007-06-05 2008-12-11 Continental Automotive Systems Us, Inc. Formed flange for pressure monitoring valve stem mount
FR2927675B1 (fr) * 2008-02-19 2013-02-08 Lisi Aerospace Dispositif de fixation provisoire et reutilisable destine au pre-assemblage d'au moins deux elements structuraux prealablement perces.
CN102606598B (zh) * 2011-01-25 2016-12-21 博尔霍夫.奥塔陆股份有限公司 待嵌入成型的螺纹嵌件及嵌入成型方法
FR3063027B1 (fr) * 2017-02-17 2021-05-21 Bollhoff Otalu Sa Ecrou a sertir et procede de fabrication d’un tel ecrou.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838499A (en) 1972-03-07 1974-10-01 Vyzk Ustav Mech Method of one-sided riveting tool for its performance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1102937A (en) * 1913-07-09 1914-07-07 Norman Mellor Collapsing tool.
US2205772A (en) * 1937-01-22 1940-06-25 Joseph W Bowersox Rivet setting device
US2188422A (en) * 1937-06-09 1940-01-30 Goodrich Co B F Fluid-tight attachment and tubular rivet therefor
US6487767B1 (en) * 2000-04-10 2002-12-03 Fatigue Technology, Inc. Method and apparatus for connecting a fastener element to a wall
US6665922B2 (en) * 2002-05-13 2003-12-23 Hi-Shear Corporation Pull stem hi-lite pin with pull groove for swaging collars

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838499A (en) 1972-03-07 1974-10-01 Vyzk Ustav Mech Method of one-sided riveting tool for its performance

Also Published As

Publication number Publication date
DE602008000184D1 (de) 2009-11-19
FR2912333A1 (fr) 2008-08-15
BRPI0800096A (pt) 2008-10-07
ES2332837T3 (es) 2010-02-12
US20080209711A1 (en) 2008-09-04
US8001670B2 (en) 2011-08-23
CN101244447A (zh) 2008-08-20
ATE444820T1 (de) 2009-10-15
CN101244447B (zh) 2011-09-21
FR2912333B1 (fr) 2009-07-31
EP1958715B1 (de) 2009-10-07

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