EP3727737A2 - Système de fixation - Google Patents

Système de fixation

Info

Publication number
EP3727737A2
EP3727737A2 EP18799790.3A EP18799790A EP3727737A2 EP 3727737 A2 EP3727737 A2 EP 3727737A2 EP 18799790 A EP18799790 A EP 18799790A EP 3727737 A2 EP3727737 A2 EP 3727737A2
Authority
EP
European Patent Office
Prior art keywords
welding
contact surface
stud
bolt
substrate
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Withdrawn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
EP18799790.3A
Other languages
German (de)
English (en)
Inventor
Klaus Bertsch
Uwe Popp
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP3727737A2 publication Critical patent/EP3727737A2/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Withdrawn legal-status Critical Current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
    • B23K9/201—Stud welding of the extremity of a small piece on a great or large basis
    • B23K9/202—Stud welding of the extremity of a small piece on a great or large basis by means of portable equipment, e.g. stud welding gun
    • 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
    • B23K9/205—Means for determining, controlling or regulating the arc interval
    • 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
    • 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
    • B23K9/207—Features related to studs
    • 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
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means
    • B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
    • 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
    • B23K9/32—Accessories
    • B23K9/321—Protecting means

Definitions

  • a bolt is brought into contact with the substrate and subjected to electric current.
  • the bolt is held by an electrically conductive stud holder.
  • the bolt As soon as the electric current flows between the bolt and the ground, the bolt is lifted off the ground to form an arc. Due to the energy released partially liquefies the material of the bolt and the substrate. Subsequently, the electric power is turned off and the bolt immersed in the liquefied material, while this material cools and solidifies. The bolt is then firmly bonded to the substrate.
  • the object of the invention is to provide an apparatus and / or a method with which an attachment of a bolt to a substrate is simplified and / or improved.
  • a fastening system for welding a welding bolt in a welding direction to a substrate comprising a welding gun defining the welding direction and the welding stud, wherein the welding gun comprises a holding device for holding the welding stud during a welding operation and has an outer contour, wherein the welding stud a contact surface, which is intended to contact the substrate before and / or during the welding process, and wherein starting from the contact surface, a tangent to the outer contour can be applied, which with the welding direction an angle of less than 60 °, preferably less than 45 °, more preferably less than 30 °, includes when the welding stud is held by the holding device and the contact surface contacts the ground.
  • the welding gun preferably has a housing which defines the outer contour or a part of the outer contour.
  • An advantageous embodiment is characterized in that the welding gun has a holding spring acting on the holding spring and a support element having a support surface, and that the holding device with the welding bolt against a spring force of the retaining spring relative to the support element against the welding direction is displaceable until the contact surface of the welding bolt and the bearing surface are arranged in the welding direction at the same height.
  • the welding gun has a contact pressure element with a contact surface and a contact pressure acting on the pressure spring, and wherein the contact pressure against a spring force of the pressure spring relative to the support element against the welding direction is displaceable until the contact surface of the welding bolt and the contact surface in Welding direction are arranged at the same height.
  • the contact surface viewed in the direction of welding, is arranged between the contact surface and the support surface.
  • the support element is substantially closed with respect to the welding direction in a circumferential direction and has a curved outlet channel.
  • the outlet channel is curved several times.
  • a welding apparatus 10 for welding a welding bolt 20 to a substrate 30 is shown schematically.
  • a material of the welding bolt 20 and a material of the substrate 30 are electrically conductive, in particular metallic.
  • the welding device 10 comprises a welding gun 40 with a push-button trained trigger switch 41, a welder 50, a first electrical cable 61, a second electrical cable 62 with a terminal 63, an example designed as a power cord electrical supply cable 64, an electrical communication line 65, designed as a gas cylinder gas reservoir 70, a tubular gas supply line 71 and a gas hose 72.
  • Welding apparatus 50 includes an apparatus, not shown, for converting electrical power from power cable 64 into welding current, including, for example, an electrical capacitor, a thyristor, an insulated gate bipolar transistor or other power electronic devices, and an associated microprocessor-based controller to provide the welding current with desired voltage and current.
  • an apparatus not shown, for converting electrical power from power cable 64 into welding current, including, for example, an electrical capacitor, a thyristor, an insulated gate bipolar transistor or other power electronic devices, and an associated microprocessor-based controller to provide the welding current with desired voltage and current.
  • the welding apparatus 50 has an input device 51 with actuating elements 52 and an output device 53 with a visual display element 54 and a wireless transmission unit.
  • the input device 51 is for inputting parameters of a welding process to be performed with the welding apparatus 10, such as the electric voltage, current, power and duration of the welding current, position and velocity of the bolt, etc. by a user of the welding apparatus 10.
  • the output device 53 is used to output information, such as information about parameters of the welding process, information about covered emissions of the welding process or other parameters, information on the quality of the welding process, information on measures to improve the welding process, information on recorded characteristics of the welding bolt or derived from the above quantities, and / or recommendations or instructions for cleaning and / or maintenance of the welding machine Welding device 10, in particular the welding gun 40, to the user.
  • the communication line 65 is used for communication between the welding gun 40, in particular a control device of the welding gun 40, not shown in FIG. 1, and the welding device 50, in particular the control device and / or the input device 51 and / or the output device 53 an exchange of information about the parameters of a welding operation accomplished, for example, to achieve synchronization of the welding current with a movement of the welding bolt 20 or facilitate.
  • the communication between the welding gun and the welder is wireless, by radio or by means of the first electrical cable, which carries the welding current.
  • the welding gun 40 further includes a controller 99 for controlling the various components and devices of the welding gun and welder 50.
  • the controller 99 is provided for controlling one or more parameters of the welding operation.
  • the control device 99 comprises various electronic components, such as, for example, one or more microprocessors, one or more temporary or permanent data memories, and the like.
  • the welding gun 40 further comprises a bolt lifting device, which is designed as a first lifting magnet, which acts on the bolt holder 44 with a force away from the opening 46 to the rear (upward in FIG. 1) when the bolt lifting device is activated. Via a signal line, not shown, the control device 99 communicates with the Bolzenabhub worn to control the Bolzenabhub arthritis, in particular to activate and deactivate.
  • the welding gun 40 further comprises a male or female as a second solenoid formed Bolzeneingauch founded which the bolt holder 44 with a force to the mouth 46 towards the front (in Fig. 1 down) applied when the Bolzeneintauch worn is activated.
  • the control device 99 Via a signal line (not shown), the control device 99 communicates with the pin immersion device in order to control, in particular to activate and deactivate, the pin immersion device.
  • the male pin is formed as a spring member
  • this spring member is preferably tightened when the pin holder is moved rearward by the pin lifting means, so that the spring member moves the pin holder forward as soon as the pin lifting means is deactivated.
  • the stud holder 244 is part of a welding gun, not shown in greater detail, for welding the welding stud 220 to a substrate, which is designed, for example, like the welding gun 40 (FIG. 1).
  • the holding device 280 is arranged at a front end of the welding gun, so that the welding bolt 220 is moved forward toward the ground when the bolt holder 244 is moved forward, for example, by a pin immersion device.
  • the welding gun, in particular the stud holder 244 has, behind the holding device 280, a receptacle 290 designed essentially as a cavity for the attachment means 250 of the welding stud.
  • the attachment means 250 is protected from damage by the holding device 280 and on the other hand ensures that the holding device 280 independently holds the welding stud in front of a length of its shaft 240 and / or the connection means 250 in the desired position.
  • FIG. 4 shows a fastening system 400 which is provided for welding a welding bolt 420 in a welding direction 410 with a base 430.
  • the fastening system 400 comprises, in addition to the welding stud 420, a welding gun 440 defining the welding direction 430 with a housing 450 and a handle 460.
  • the welding gun has a holding device 444 designed as a stud holder which, for holding the welding stud 420 during a welding operation, comprises a stud receiver (not shown) , in which the welding bolt 420 is inserted and preferably clamped.
  • a contact surface 425 of the welding bolt 420 contacts the substrate 430 before and / or during the welding process.
  • a tangent 460 can be applied to an outer contour of the welding gun 440, which encloses an angle of 20 ° with the welding direction 410.
  • the contact point of the welding bolt 420 with the substrate 430 can be clearly seen, at least until the contact surface 425 contacts the substrate 430.
  • the welding gun 440 has a holding spring 470 acting on the holding device 444 in the welding direction 410 and a support element 480 with a bearing surface 481 pointing in the direction of welding 410.
  • the holding device 444 with the welding bolt 420 is against a spring force of the retaining spring 470 relative to the support element 480 against the welding direction 410 displaceable by a Anpressweg A until the contact surface 425 of the welding bolt 420 and the support surface 481 in the Welding direction 410 are arranged at the same height.
  • the Anpressweg A is the distance by which the welding gun 440 is still to be moved in the direction of welding 410 from the contacting of the substrate 430 by the contact surface 425, before a welding operation begins.
  • the welding gun has a contact pressure element 490 which has a guide ring 491 surrounding the support element 480 and two, three or more contact pressure arms 492, each with a contact surface 493.
  • the pressing arms 492 are rigidly connected to the guide ring 491, which is displaceable in the welding direction 410 and thereby guided by the support element 480.
  • the welding gun further has at least one, in the present example two pressure springs 495, which act on the contact pressure element 490, in the present example, the guide ring 491, in the direction of welding 410 with a spring force.
  • the pressing element 490 can be displaced counter to the welding direction 410 against the spring force of the pressure springs 495 relative to the support element 480 until the contact surface 425 of the welding bolt 420 and the contact surfaces 493 are arranged at the same height in the welding direction 410.
  • the contact surfaces 493 viewed in the direction of welding 410, are arranged between the contact surface 425 and the support surface 481. This ensures that, during attachment of the fastening system 400 to the substrate 430, first the contact surface 425 of the welding bolt 420, then the contact surfaces 493 of the pressing element 490 and finally the bearing surface 481 of the support element 480 contact the substrate 430.
  • a user can initiate a welding process by means of a triggering element 498.
  • the visibility of the weld stud 420 makes it easier for a user to apply the contact surface 425 to the desired weld location on the substrate 430 or to correct the position of the contact surface 425 by means of the weld gun 440, in particular its handle 460. Since the user can see through between the pressing arms 492, the tangent decisive for the viewing angle, starting from the contact surface 425, can be applied to the support element 480 or, as in the present example, to the guide ring 491. As soon as the contact surfaces 493 rest on the base 430, the welding gun 440 is in the desired position, in particular against slipping supported.
  • the contact surfaces 493 are preferably made of an elastomer.
  • the pressure springs 495 serve to reset the contact pressure element 490 after lifting the welding gun 440 from the base 430, for example after a welding operation.
  • the retaining spring 470 is used to reset the holding device 444 after lifting the welding gun 440 from the substrate and / or during the welding process as immersion device, which can immerse the previously moved by a trained as a lifting magnet lifting device 499 away from the ground welding pin in a molten welding bath.
  • a support member 500 is shown with a support surface 581 for resting on a substrate 530.
  • the support element 500 is part of a welding gun (not further shown) for welding a welding bolt 520 in a welding direction 510 to the substrate 530.
  • the support element 500 is substantially closed with respect to the welding direction 510 in a circumferential direction and has an outlet channel 540, for example for a welding stud 520 flowing protective gas. 5 shows that the outlet channel 540 is curved twice, so that a risk of escaping heat radiation or escaping hot material is reduced, in particular avoided.
  • the outlet channel 540 has a support foot 550 for support on the base 530, which for example comprises an elastomer or consists of an elastomer.
  • the invention has been described by way of examples of a system for attaching a first article to a second article and a welding gun.
  • the features of the described embodiments can also be combined with each other as desired within a single fastening device. It should be noted that the device according to the invention is also suitable for other purposes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Abstract

Système de fixation pour souder un pivot à souder dans une direction de soudage, comprenant : un support; un pistolet de soudage qui définit la direction de soudage; et le pivot à souder, le pistolet de soudage comprenant un dispositif de maintien pour maintenir le pivot à souder au cours du processus de soudage et présentant un contour extérieur, le pivot à souder comprenant une surface de contact qui est conçue pour venir en contact avec le support avant et/ou pendant le processus de soudage, une tangente au contour extérieur pouvant être appliquée à partir de la surface de contact, laquelle tangente forme avec la direction de soudage un angle inférieur à 60° lorsque le pivot à souder est maintenu par le dispositif de maintien et que la surface de contact vient contre le support.
EP18799790.3A 2017-12-18 2018-11-15 Système de fixation Withdrawn EP3727737A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17207946.9A EP3498411A1 (fr) 2017-12-18 2017-12-18 Pistolet de soudage de goujons
PCT/EP2018/081300 WO2019120781A2 (fr) 2017-12-18 2018-11-15 Système de fixation

Publications (1)

Publication Number Publication Date
EP3727737A2 true EP3727737A2 (fr) 2020-10-28

Family

ID=60673789

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17207946.9A Withdrawn EP3498411A1 (fr) 2017-12-18 2017-12-18 Pistolet de soudage de goujons
EP18799790.3A Withdrawn EP3727737A2 (fr) 2017-12-18 2018-11-15 Système de fixation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17207946.9A Withdrawn EP3498411A1 (fr) 2017-12-18 2017-12-18 Pistolet de soudage de goujons

Country Status (7)

Country Link
US (1) US20210187650A1 (fr)
EP (2) EP3498411A1 (fr)
JP (1) JP7208238B2 (fr)
KR (1) KR20200096509A (fr)
CN (1) CN111278594B (fr)
TW (1) TW201927448A (fr)
WO (1) WO2019120781A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220074552A (ko) 2020-11-27 2022-06-03 대우조선해양 주식회사 무한 공급 와이어 방식의 스터드 용접건 장치
CN115156670B (zh) * 2022-07-01 2023-08-04 浙江上势自动焊接科技有限公司 一种螺柱焊接设备的无线控制方法

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JP6035465B2 (ja) * 2013-02-25 2016-11-30 株式会社スター ビット溶着用ガン
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Also Published As

Publication number Publication date
KR20200096509A (ko) 2020-08-12
TW201927448A (zh) 2019-07-16
US20210187650A1 (en) 2021-06-24
EP3498411A1 (fr) 2019-06-19
WO2019120781A3 (fr) 2019-08-15
WO2019120781A2 (fr) 2019-06-27
CN111278594A (zh) 2020-06-12
JP2021506589A (ja) 2021-02-22
CN111278594B (zh) 2023-03-10
JP7208238B2 (ja) 2023-01-18

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