EP1446255A1 - Dispositif d'amenee pour un element de fixation et procede pour son fonctionnement - Google Patents

Dispositif d'amenee pour un element de fixation et procede pour son fonctionnement

Info

Publication number
EP1446255A1
EP1446255A1 EP02790374A EP02790374A EP1446255A1 EP 1446255 A1 EP1446255 A1 EP 1446255A1 EP 02790374 A EP02790374 A EP 02790374A EP 02790374 A EP02790374 A EP 02790374A EP 1446255 A1 EP1446255 A1 EP 1446255A1
Authority
EP
European Patent Office
Prior art keywords
fastening element
catch
positioning piston
positioning
piston
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.)
Withdrawn
Application number
EP02790374A
Other languages
German (de)
English (en)
Inventor
Dieter Mauer
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.)
Newfrey LLC
Original Assignee
Newfrey LLC
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 Newfrey LLC filed Critical Newfrey LLC
Publication of EP1446255A1 publication Critical patent/EP1446255A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding
    • B23K9/206—Stud welding with automatic stud supply

Definitions

  • the invention relates to a feed device for a fastening element comprising a positioning piston for positioning a fastening element, a catch clip for pre-positioning the fastening element for the positioning piston and a housing for holding the positioning piston and the catch clip, the housing having a feed channel for feeding the fastening element to the catch clip and the Positioning piston for positioning the fastener is displaceable relative to the housing.
  • the invention further relates to a method for feeding a fastener.
  • a reliable feeding of the fastening element to the positioning piston is required for the automated positioning of a fastening element on a workpiece.
  • Reliable feeding requires precise pre-positioning of the fastener. Precise pre-positioning is particularly difficult if the fastening elements to be positioned are difficult to grasp and can easily tilt or tilt.
  • the positioning piston is coupled to the catch clip so that the positioning piston can open and close the catch clip.
  • the catch clip is therefore not opened with the aid of the fastening element, but directly through the positioning piston.
  • the positioning piston and the catch bracket thus form a double pliers or double bracket, which combines a high repetition rate of the setting method with a high positioning accuracy of the fastening elements on the workpiece. Due to the high positioning accuracy during the setting process, a precise fit of the fastening element is achieved.
  • the positioning piston has a guide and the clip has an inner contour with a pressure section, the guide pressing against the pressure section during the forward movement of the positioning piston to open the catch clip.
  • a coupling between the positioning piston and the catch bracket is achieved by the guide and the pressure section of the inner contour. This coupling means that when the positioning piston moves forward, for example in direction of the workpiece, the catch bracket is opened by the positioning piston regardless of the fastener.
  • the catch clamp is closed when the positioning piston is retracted, preferably by spring force.
  • the guide is formed by widening the outside diameter of the positioning piston. With the help of the widened outer diameter of the positioning piston, a force is exerted on the pressure section of the catch clip when it moves forward before the fastening element is pushed through the opened catch clip.
  • the guide has an oblique edge with respect to the catch clip. It is irrelevant whether the guide or the pressure section or both are beveled. It is only important that the guide ensures that the catch clip is opened with as little friction as possible.
  • the pressure section and the guide can roll on one another with the aid of mounted rollers or balls, which reduces wear on the surfaces that conduct one another and thus increases the durability of the feed device.
  • the catch clip has a catch pocket for catching the fastening element.
  • the catch clip has the task of securely catching a fastener, such as that supplied by compressed air, and pre-positioning it correctly so that the positioning piston can pick up the fastener with high precision before the setting process.
  • the catch bag contributes to a reliable pre-positioning while catching.
  • This catch bag is advantageously adapted to the fastening element to be accommodated.
  • the catch pocket forms the profile of the fastening element, in particular the front outer part of the fastening element. The connection enables reliable fastening of the fastening element as well as a sufficiently precise pre-positioning of the fastening element for the positioning piston.
  • the clamping arms have insertion chamfers for guiding the fastening element into the positioning piston.
  • the fastening piston can be easily picked up by the positioning plunger. They help the positioning piston to accommodate the fastener in the event of inaccurate pre-positioning.
  • the method according to the invention for positioning a fastening element on a workpiece comprises the following method steps: a fastening element is fed to the catch clip via a feed channel and caught by the catch clip by latching in the catch pocket; the catch bracket pre-positions the fastening element for the positioning piston and the positioning piston grasps the fastening element; the catch bracket is opened and closed during the forward and backward movement of the positioning piston essentially independently of the axial forward movement of the fastening element, and the fastening element is moved in the direction of the workpiece; the fastening element is connected to the workpiece using a conventional joining method; the positioning piston moves back to its starting position, the catch bracket closes.
  • the positioning piston is tubular.
  • the inside diameter of the positioning piston roughly corresponds to the outside diameter of the upper end of the fastening element to be positioned.
  • a fast feeding of the fastening element to the catch clip is expedient.
  • the catch clip must be matched to the shape of the fastening element so that the fastening element is caught quickly and safely.
  • the positioning piston grips the fastening element in the catch bracket.
  • the pre-positioning of the fastening element results in a higher accuracy of the positioning of the fastening element by the positioning piston.
  • the interaction of the positioning piston and the catch bracket prevents additional forces on the fastening element and the clamping arms that go beyond holding.
  • the positioning piston opens the catch clip while the fastener is moved towards the workpiece. When the fastening element is displaced in the direction of the workpiece, the fastening element is held firmly and securely by the positioning piston.
  • FIG. 1 shows a feed device according to the invention, in which a catch clip holds a fastening element
  • FIG. 2 shows the feed device according to FIG. 1, in which the positioning piston with the fastening element is displaced in the direction of the workpiece;
  • FIG. 3 shows the feed device according to FIGS. 1 and 2, in which the positioning piston is displaced away from the workpiece;
  • FIG. 4 shows a view of the detail A marked in FIG. 3.
  • Fig. 1 shows a feed device according to the invention schematically in longitudinal section with a catch clip 5, which holds a fastening element 2 with the aid of a catch pocket 8, and with a positioning piston 6, which has gripped the fastening element 2 with the aid of clamping arms 13.
  • the fastening element 2 is fed via a feed channel 4 to the catch clip 5 before the positioning piston 6, after the pre-positioning of the fastener 2 through the catch pocket 8 of the catch clip 5, grips the fastener 2.
  • the catch bracket 8 has on a bearing 17 pivotally mounted legs 7 which press against the fastening element 2 with the aid of a spring 9.
  • the spring 9 is designed as a spiral spring running in a circumferential groove around the catch bracket 5.
  • the legs 7 have catch pockets 8 which are matched to the shape of the fastening element 2 in order to achieve a particularly precise pre-positioning of the fastening element 2.
  • the catch clip 5, the positioning piston 6 and the feed channel 4 are connected to a housing 3, the positioning piston 6 being displaceable relative to the housing 3, in particular being able to move back and forth in the direction of a workpiece 11.
  • the clamping arms 13 are equipped at their ends with insertion chamfers 14, which make it easier to grip the fastening element 2.
  • the positioning piston 6 has a conical guide 10 with an inclined edge 12, with which the legs 7 can be tilted with the aid of a pressure section 15.
  • FIG. 2 shows the feed device according to the invention according to Fig. 1 with the difference that the positioning piston 6 is displaced in the direction of the workpiece 11.
  • the legs 7 were opened by the positioning piston 6 independently of the movement of the fastening element 2 against the force of the spring 9.
  • the fastening element 2 is held by the tension arms 13.
  • FIG. 3 shows a feed device according to FIGS. 1 and 2, in which the positioning piston 6 is displaced away from the workpiece 11, whereby the feed channel 4 is released for the feed of the fastening element 2.
  • the fastening element 2 is held by the catch clip 5 and is pre-positioned by the latter, so that the positioning piston 6 can then grip the fastening element 2 with its clamping arms 13, to which the insertion chamfers 14 contribute in an advantageous manner.
  • FIG. 4 shows a view of the detail A marked in FIG. 3 with the leg 7 which has the catch pocket 8 in which the fastening element 2 is locked.
  • the latching mechanism of the catcher pocket 8 is produced by the interaction of the upper edge 18 of the catcher pocket 8, the lower edge 19 of the catcher pocket 8 and the spring 9, by the fastening element 2 adapting in its shape to the catcher pocket 8 and in this with the spring 9 is held.
  • the fastening element 2 is pre-positioned, that is to say introduced into the catch pocket 8, the leg 7 is first pushed slightly away from the fastening element 2 to the side; it is then held securely in the trough formed by the upper 18 or lower edge 19 of the catch pocket 8. Snap 2 acts a precise axial alignment of the fastener 6.
  • the opening of the catch 5 is not caused by the fastener 2 but by the positioning piston 6.
  • the pre-positioning of the fastening element 2 for the positioning piston 6 is thus separate from the positioning of the fastening element 2 in the direction of a workpiece 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

L'invention concerne un dispositif d'amenée (1) qui comprend un piston de positionnement (6) pour tenir un élément de fixation (2) pendant le positionnement, une pince de retenue (5) servant au positionnement préalable de l'élément de fixation (2) pour le piston de positionnement (6), ainsi qu'un carter (3) pour maintenir le piston de positionnement (6) et la pince de retenue (5). Le carter (3) présente un conduit d'amenée (4) qui amène l'élément de fixation (2) à la pince de retenue (5) et le piston de positionnement (6) est déplaçable par rapport au carter (3) afin de positionner l'élément de fixation (2). Le dispositif d'amenée selon l'invention est caractérisé en ce que la pince de retenue (5) peut s'ouvrir et se fermer pratiquement indépendamment du mouvement axial en avant de l'élément de fixation (2) lors du déplacement en avant et en arrière du piston de positionnement (6).
EP02790374A 2001-11-22 2002-11-14 Dispositif d'amenee pour un element de fixation et procede pour son fonctionnement Withdrawn EP1446255A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10157183A DE10157183C1 (de) 2001-11-22 2001-11-22 Zuführvorrichtung für ein Befestigungselement und Verfahren für ihren Betrieb
DE10157183 2001-11-22
PCT/EP2002/012750 WO2003043772A1 (fr) 2001-11-22 2002-11-14 Dispositif d'amenee pour un element de fixation et procede pour son fonctionnement

Publications (1)

Publication Number Publication Date
EP1446255A1 true EP1446255A1 (fr) 2004-08-18

Family

ID=7706501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02790374A Withdrawn EP1446255A1 (fr) 2001-11-22 2002-11-14 Dispositif d'amenee pour un element de fixation et procede pour son fonctionnement

Country Status (5)

Country Link
US (1) US7262383B2 (fr)
EP (1) EP1446255A1 (fr)
JP (1) JP2005509526A (fr)
DE (1) DE10157183C1 (fr)
WO (1) WO2003043772A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039398B4 (de) * 2004-08-13 2014-11-27 Ejot Gmbh & Co. Kg Futter zur Halterung von Befestigungselementen für eine Reibschweißverbindung
DE102004051389B4 (de) * 2004-10-21 2006-07-27 Heinz Soyer Bolzenschweisstechnik Gmbh Verfahren und System zum Verschweißen eines eine kegelartige Stirnfläche aufweisenden Bolzens mit einem Träger
DE102008014599B4 (de) * 2008-03-17 2018-01-25 Ejot Gmbh & Co. Kg Futter zur Halterung von Befestigungselementen für eine Reibschweißverbindung
KR101022522B1 (ko) 2008-09-01 2011-03-16 한양스터드용접(주) 어스볼트의 스터드 용접시 사용되는 어스볼트척
DE102009023454A1 (de) * 2009-06-02 2010-12-09 Newfrey Llc, Newark Bolzenhalteeinrichtung für Bolzen mit großen Flanschköpfen
DE202009017009U1 (de) * 2009-12-16 2010-04-15 Newfrey Llc, Newark Fügewerkzeug und Halteeinrichtung dafür
DE102011051881B4 (de) * 2011-07-15 2023-08-10 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Befestigungselement
CN103862273A (zh) * 2012-12-18 2014-06-18 富泰华工业（深圳）有限公司 螺钉定位装置
KR101836775B1 (ko) * 2017-09-07 2018-03-08 김지원 스터드 용접건의 스터드척
EP3466592A1 (fr) * 2017-10-09 2019-04-10 HILTI Aktiengesellschaft Boulons à souder et pistolets à souder
JP7193546B2 (ja) * 2017-12-14 2022-12-20 ハウメット エアロスペース インコーポレイテッド 抵抗スポットリベット溶接システムおよびその使用方法
EP3527318B1 (fr) * 2018-02-16 2023-05-17 Newfrey LLC Dispositif de maintien pour maintenir un goujon et tête d'assemblage
TWI700437B (zh) * 2019-01-09 2020-08-01 達霆精密工業有限公司 可存置扣件焊錫的結構
US11698097B2 (en) * 2020-01-07 2023-07-11 Dtech Precision Industries Co., Ltd. Method of fitting fastener to object

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US3694611A (en) * 1971-12-01 1972-09-26 Usm Corp Apparatus for pneumatically feeding studs to a welding gun
US3723700A (en) * 1972-02-28 1973-03-27 Fastener Corp Welding gun means for feeding and holding head-bearing studs or the like
US4085307A (en) * 1976-03-02 1978-04-18 Trw Inc. Weldable insulation fastener and apparatus for welding
DE3014583C2 (de) * 1980-04-16 1982-04-22 OBO Bettermann oHG, 5750 Menden Bolzenschweißgerät
DE3108840C2 (de) * 1981-03-09 1983-04-14 OBO Bettermann oHG, 5750 Menden Verfahren und Vorrichtung zum Verschweißen von Bolzen und dergleichen mit einem Werkstück
DE3218886C2 (de) * 1982-05-19 1984-06-14 OBO Bettermann oHG, 5750 Menden Bolzenanschweißgerät
DE4324223A1 (de) * 1993-07-20 1995-01-26 Rema Ges Fuer Schweistechnik G Verfahren und Vorrichtung zum Anschweißen von Bolzen auf einer Unterlage, z. B. einem Karosserieblech
DE29617208U1 (de) * 1996-10-02 1996-12-05 Emhart Inc Bolzenhalter für eine Bolzenschweißeinrichtung
DE19712783C2 (de) * 1997-03-26 2000-11-09 Sfs Ind Holding Ag Heerbrugg Schrauberelement
DE10028420B4 (de) 2000-06-08 2005-01-27 Nelson Bolzenschweiß-Technik GmbH & Co. KG Bolzenschweißverfahren und Bolzenschweißvorrichtung, insbesondere für das Bolzenschweißen ohne Stützfuß, sowie Computerprogramm hierfür

Non-Patent Citations (1)

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Title
See references of WO03043772A1 *

Also Published As

Publication number Publication date
US7262383B2 (en) 2007-08-28
US20040245220A1 (en) 2004-12-09
WO2003043772A1 (fr) 2003-05-30
DE10157183C1 (de) 2003-02-20
JP2005509526A (ja) 2005-04-14

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