EP2465641A2 - Outil électrique de fixation de boulons - Google Patents

Outil électrique de fixation de boulons Download PDF

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Publication number
EP2465641A2
EP2465641A2 EP11189268A EP11189268A EP2465641A2 EP 2465641 A2 EP2465641 A2 EP 2465641A2 EP 11189268 A EP11189268 A EP 11189268A EP 11189268 A EP11189268 A EP 11189268A EP 2465641 A2 EP2465641 A2 EP 2465641A2
Authority
EP
European Patent Office
Prior art keywords
setting
energy
bolt
spring
detection device
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
EP11189268A
Other languages
German (de)
English (en)
Other versions
EP2465641B1 (fr
EP2465641A3 (fr
Inventor
Klaus Bertsch
Matthias Blessing
Ulrich Schiestl
Karl Franz
Harald Fielitz
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 EP2465641A2 publication Critical patent/EP2465641A2/fr
Publication of EP2465641A3 publication Critical patent/EP2465641A3/fr
Application granted granted Critical
Publication of EP2465641B1 publication Critical patent/EP2465641B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power

Definitions

  • the invention relates to an electrically operable bolt setting device for setting fastening elements, with a spring device which serves as a buffer to store energy originating in the bolt setting device from an electric drive, which energy can be released abruptly during a setting process.
  • the invention further relates to a method for operating as well as a method for starting up such a bolt gun.
  • the electrically operable bolt setting tool is preferably a hand-held tacker for fasteners, as for example in German Offenlegungsschrift DE 10 2006 000 517 A1 is disclosed.
  • a similar tacker is known with a controller comprising at least one timer.
  • the timer monitors the duration of a partial or full retract stroke.
  • a bolt gun is known, which is operated with liquid fuel and includes an automatic control device for setting setting parameters for a setting process.
  • the setting parameters are adjustable as a function of data which are detected by a laser device from a coding.
  • German patent application DE 10 2004 044 156 A1 is also known fuel operated bolt gun known, comprising means for axially displacing a piston stopper.
  • the object of the invention is to provide an electrically operable bolt setting device according to the preamble of claim 1, which is simple in construction and inexpensive to manufacture and / or operable or in operation is removable.
  • the object is in an electrically operable bolt setter for setting fasteners, with a spring device that serves as a buffer to store in the bolt setting device derived from an electric drive energy that can be delivered abruptly during a setting process, achieved in that the spring device cooperates with a Swiss ideasenergieverstell issued.
  • a spring device that serves as a buffer to store in the bolt setting device derived from an electric drive energy that can be delivered abruptly during a setting process, achieved in that the spring device cooperates with a Swiss heading energieverstell insightful.
  • more or less set energy is needed to drive the fasteners into the ground.
  • the spring device of the electrically operable bolt setting device cooperates with the intermediate storage energy adjustment device such that the spring device is tensioned to different degrees during different setting processes, and / or in such a way that paths of different sizes are made available for relaxing.
  • the cached energy in the spring device can be adjusted in a simple manner both manually, for example by means of a switching device, as well as automatically, for example by means of a control device, depending on demand.
  • a preferred embodiment of the electrically operable bolt setting tool is characterized in that the spring device interacts with the intermediate storage energy adjustment device such that the spring device is not completely tensioned before a setting operation and / or is not completely relaxed during a setting process.
  • the spring travel of the spring device is adjusted.
  • the spring travel of the spring device can be adjusted at one end of the spring device, which comprises, for example, at least one helical compression spring, or both ends of the spring device.
  • a further preferred exemplary embodiment of the electrically operable stud setting device is characterized in that the intermediate storage energy adjusting device is connected to the electric drive in terms of control, so that more or less energy is introduced into the spring device as a function of setting parameters and / or the type of fastening elements to be set.
  • the intermediate storage energy adjustment device is preferably connected to the electric drive via a control device.
  • the electric drive is used, for example with the interposition of a belt drive, to tension the spring device. Depending on how much the spring device is tensioned by means of the electric drive, more or less intermediate energy is stored in the spring device.
  • a further preferred embodiment of the electrically operable bolt-firing device is characterized in that a control device is connected in terms of control with a buffer and / or braking device such that a plunger that is suddenly translationally movable by means of the spring device serves to set the fastening elements during a setting process travels more or less large path.
  • the spring device can preferably be tensioned via a threaded spindle and a spindle nut guided against rotation on the threaded spindle. In this case, for example, a rotational movement of the threaded spindle generated by the electric drive is converted into a linear movement or translational movement of the spindle nut.
  • the spring device can also be clamped differently.
  • a further preferred embodiment of the electrically operable bolt setting device is characterized in that the intermediate storage energy adjustment device is connected in terms of control with a manually operable switching device on the bolt setting device and / or with one or the control device in the bolt setting device.
  • the switching device By means of the switching device, a user can set from the outside on the bolt setting device how much intermediate energy is to be stored in the spring device or delivered by the spring device. The same can be set automatically by means of the control device.
  • a further preferred exemplary embodiment of the electrically operable stud firing device is characterized in that one or the control device is connected to a detection device, in particular an underground detection device, a buffer load detection device, a control device Nail overhang detection device and / or a sudstosser terminates issued connected.
  • the underground detection device detects the type and / or condition of the ground, for example with the aid of radar technology or ultrasound technology. With the help of radar technology, in particular, the distance between the bolt setting device and the surface of the ground can be detected.
  • the buffer load can be detected, for example, with the aid of strain gauges or piezoelements. As a nail overhang, the distance is designated, with which a fastener after setting still protrudes from the ground.
  • the nail overhang can be detected, for example, inductively or with the aid of a potentiometer. Alternatively or additionally, conventional distance measuring devices can be used to detect the nail overhang.
  • the recoil of the bolt gun when setting a fastener can be detected, for example, by means of acceleration sensors.
  • a further preferred exemplary embodiment of the electrically operable stud setting device is characterized in that the intermediate storage energy adjusting device comprises an electronic adjusting device.
  • the individual parts of the bolt gun, which are installed in the drive chain of the bolt gun, have manufacturing tolerances. These tolerances mean that the ready-assembled bolt guns do not always store exactly the same amount of intermediate energy in the spring device in a defined operating state.
  • the mounted bolt setting devices can be adjusted in a simple manner at a first startup in such a way that each bolt setting device stores the same amount of intermediate energy in the spring device in a defined operating state.
  • a further preferred embodiment of the electrically operable bolt setting tool is characterized in that the electronic adjusting device is coupled to Verstell sectionen with the spring device, that at least one end position of the spring device is adjustable. With the electronic adjusting device preferably the spring travel is adjusted in a defined operating state of the bolt setting device.
  • the energy store has a dynamic energy store, in particular a flywheel.
  • the stored energy is preferably adjusted via the rotational speed.
  • the spring device has a mechanical spring, in particular a helical spring.
  • the mechanical spring is essentially made of a steel, a plastic and / or an elastomer.
  • the spring device on a pneumatic and / or hydraulic spring, in particular gas spring on.
  • the driving energy is set instead of or in addition to the adjustment of the spring travel by adjusting the spring characteristic of the spring means.
  • this is preferably achieved by changing the internal pressure and / or the volume, for example in the form of volumes which can be switched on via valves, or else by changing a shape of the spring, for example in the form of variable throttle bodies, which have different pressure losses during the relaxation of the gas spring create, accomplished.
  • the above object is alternatively or additionally achieved in that an energy storage of the bolt setting device, in particular the spring means before a setting either not completely loaded or tensioned and / or during a setting process not completely discharged or relaxed.
  • an energy storage of the bolt setting device, in particular the spring means before a setting either not completely loaded or tensioned and / or during a setting process not completely discharged or relaxed.
  • a preferred embodiment of the method is characterized in that more or less energy in the energy storage, in particular the spring means is cached depending on setting parameters and / or on the type of fastening elements to be set. For example, the cached amount of energy is set automatically by the controller or manually by a user.
  • a further preferred embodiment of the method is characterized in that the energy storage, in particular the spring device before a setting process partially discharged by a defined amount of energy or relaxed by a defined travel in order to reduce the cached energy before the setting process.
  • the relaxation of the spring device can, for example, with the help of electric drive can be performed. It is possible to convert the released during relaxation of the spring means intermediate energy via the electric drive back into electrical energy.
  • a further preferred exemplary embodiment of the method is characterized in that a plunger which can be driven by the energy store, in particular the spring device and serves for setting the fastening elements, covers a more or less large setting path during a setting process.
  • the setting path of the plunger can be varied, for example, by a buffering and / or braking device.
  • the above object is alternatively or additionally solved in a method for commissioning a previously described electrically operable bolt gun, that the electric drive downstream drive elements are measured and adjusted after assembly of the bolt setting device. Tolerance-related differences can be adjusted with the help of simple and inexpensive elements, such as tape tensioners, shims and the like. With the help of these elements can be achieved in a simple manner that each bolt gun in defined operating states stores the same Ecoenergymenge.
  • the object is in a gas-powered bolt gun, with a combustion chamber for the conversion of chemical energy of a fuel gas in setting energy of a fastener, with an electrically controllable valve for metering fuel gas into the combustion chamber, with an electrical control unit for controlling one of the valve dosed into the combustion chamber Fuel quantity, characterized in that the control unit is provided for determining the amount of fuel to be metered into the combustion chamber on the basis of data detected by a detection device, in particular an underground detection device, a buffer load detection device, a nail overhang detection device and / or a backpressure detection device, and to the electrical control unit to be transmitted.
  • a detection device in particular an underground detection device, a buffer load detection device, a nail overhang detection device and / or a backpressure detection device, and to the electrical control unit to be transmitted.
  • the object is to be abruptly relaxed with a pressure-operated bolt gun, with a storage chamber for storing compressed air, which is intended for driving a fastener into a ground, with an electrically controllable valve for adjusting a pressure in the storage chamber, with an electrical control unit for controlling the pressure set by the valve in the accumulator chamber, achieved by the control unit being designed to operate in accordance with to determine the pressure to be set on the storage chamber on the basis of data which is detected by a detection device, in particular a background detection device, a buffer load detection device, a nail overhang detection device and / or a backpressure detection device, and transmitted to the electrical control unit.
  • a detection device in particular a background detection device, a buffer load detection device, a nail overhang detection device and / or a backpressure detection device, and transmitted to the electrical control unit.
  • a fully automatic energy adjustment is made possible by the present invention, that is, a user of the inventive bolt setting device does not have to decide which Einandergie is to choose the next drive-in.
  • the device takes this decision from him.
  • less excess energy must be dissipated in the bolt setting device, so that the corresponding components, in particular the buffer for braking the drive-in ram, are relieved.
  • This increases the life of the device and / or the components and thus the bolt gun can be made smaller and / or lighter.
  • an optionally existing electrical energy storage can be spared because only the energy required to drive in the fastening element is removed from it.
  • a range of the electrical energy storage such as batteries, increased.
  • the bolt setting device is designed, for example, as a hand-held tacking device, as shown in FIGS FIGS. 1 to 4 and the associated description of the German Offenlegungsschrift DE 10 2006 000 517 A1 is disclosed.
  • the bolt setting device comprises a spring as a drive spring element and is therefore also referred to as a spring nailer.
  • the spring is tensioned by an electric motor which drives a ball screw via a belt drive or a gear or Reibradgetriebe.
  • a rotary movement of the threaded spindle is converted into a linear movement of the spindle nut.
  • FIGS. 1 to 3 is a bolt gun 1; 41; 51 simplified with a housing 2 shown in section.
  • the bolt setting device 1; 41; 51 comprises a magazine for fastening elements 3, in particular bolts, of which a supply is contained in the magazine.
  • the bolt setting device 1; 41; 51 further includes a handle that can be grasped by the user's hand.
  • the fastener 3 is driven by means of a plunger 8 in the ground, which has a collar 9 at its end facing away from the fastening element 3. At the collar 9 attacks a spring device 10.
  • the bolt setting device 1; 41; 51 attached to a bolt-setting 5, for example, on a wall or ceiling.
  • the bolt setting device 1; 41; 51 comprises as a buffer a spring device 10 for temporarily storing drive energy, which can be delivered abruptly in a bolt setting process to set a bolt 3.
  • the spring device 10 comprises, for example, a helical compression spring which can be tensioned to different degrees in order to store intermediate energy.
  • the spring device 10 is clamped between a spring plate 12 and a spindle nut 14. Due to the distance between the spring plate 12 and the spindle nut 14, the spring travel of the spring device 10 can be varied.
  • a threaded spindle 15 is rotatably guided in the spindle nut 14.
  • the threaded spindle 15 is rotatably mounted in the housing 2 and driven by a belt drive 20 by an electric drive 25.
  • the electric drive 25 comprises an electric motor.
  • the spring device 10 can be compressed via the spindle nut 14 so that the plunger 8 is a in FIG. 1 shown setting position occupies.
  • the spring device 10 or the spindle nut 14 is released via a pawl 18, the spring device 10 relaxes abruptly, the intermediate energy stored in the spring device 10 being released in order to set the fastening element 3.
  • the electric drive 25 is connected via a control line 26 in terms of control with a control device 28.
  • the control device 28 is in turn connected via a further control line 29 in terms of control with a buffer actuator 30 of a buffer device 32.
  • the buffer device 32 comprises a buffer whose distance from the spring device 10 can be adjusted with the aid of the buffer actuator.
  • the control device 28 is connected via a further control line 34 in terms of control with a switching device 35 which is externally attached to the bolt setting device 1 and operable from the outside. With the aid of the switching device 35, the buffer actuator 30 and / or the electric drive 25 can be manually adjusted by a user from the outside.
  • the user can adjust the buffer actuator 30 manually from outside via the switching device 35 and the control device 28 in such a way that the buffer of the buffer device 32 is moved towards or away from the spring device 10.
  • the spring device 10 is tensioned via the electric drive.
  • the executed as a ball screw threaded spindle 15 is driven via the belt drive 20.
  • the spring device 10 is stretched over the linearly moved spindle nut 14 by the voltage applied to the spring device 10 plunger 8 is moved by the spindle nut 14 against the spring device 10 that their spring travel is shortened.
  • the spindle nut 14 or the plunger 8 or the spring device 10 engages in the pawl 18 and is held in the cocked position.
  • the spindle nut 14 is then moved in tensioned spring device 10 via the electric drive 25 in the reverse direction of rotation of the threaded spindle 15 in its initial position.
  • the spring device 10 is held in its cocked position until a user or user of the bolt-firing device 1 by pressing a trigger opens the pawl 18 and thus triggers a setting process in which the spring device 10 is suddenly relaxed.
  • the intermediate energy stored in the spring device is then transmitted via the plunger 8 to the fastening element 3 on the bolt setting end 5 of the bolt setting device 1.
  • the control connection of the control device 28 to the electric drive 25, to the buffer actuator 30 and / or to the switching device 35 provides a buffer energy adjustment device with which the spring device can be operated in operation of the bolt setting device 1 as a function of setting parameters and / or or the existing surface either not completely tensioned or not completely relaxed.
  • the stored in the spring device 10 insectsmenge can be adjusted depending on demand in a simple manner.
  • the amount of set energy released by the bolt setting device 1 depends on how the kinetic energy and how much kinetic energy of the ram 8 is transmitted to the fastening element 3.
  • the amount of energy delivered by the plunger 8 can be limited by not accelerating the plunger 8 over the full available length. This can for example be realized in that the spring device 10 is not stretched over the entire available path. Alternatively, the spring device 10 can also be initially relaxed a certain way and only then decoupled.
  • the amount of kinetic energy output by the plunger 8 can also be adjusted.
  • the user or user may choose, via the indexing device 35, whether to deliver a maximum net amount of energy of one hundred percent to the fastener 3, or only a limited set energy amount of, for example, fifty or seventy-five percent of the maximum possible set energy amount.
  • Bolt setting device 41 shown comprises a buffer device 44, which in contrast to the in FIG. 1 illustrated embodiment is not made adjustable.
  • arrows 46, 47 and 48 is in FIG. 2 indicated that the stored by the spring device 10 insectsmenge can be adjusted via a change in the acceleration path.
  • the switching device 35 the user or user can select a desired amount of energy of, for example, fifty percent, seventy-five percent or one hundred percent.
  • the corresponding acceleration path 48, 47, 46 is then set via the control device 28.
  • the plunger 8 is then coupled depending on the switch position to different positions and accelerated. Depending on the supply of the fastener 3, it may be necessary that the plunger 8 in all cases initially stretched to its rearmost position 48 and only then brought into its notch position or release position.
  • the bolt setting device 51 shown is additionally equipped with a background detection device 61, a buffer load detection device 62, a nail overhang detection device 63 and a backpressure detection device 64.
  • An arrow 71 indicates that different acceleration paths, which are indicated by unspecified arrows, can be displayed via the control device 28.
  • a further arrow 72 indicates that the control device 28 is connected to the buffer actuator 30 in terms of control.
  • By a further arrow 73 is indicated that the control device 28 is connected in terms of control with the underground detection device 61.
  • the remaining detection devices 62 to 64 are wirelessly connected to the control device 28 in terms of control.
  • the electric drive 25, the belt drive 20, the threaded spindle 15, the spindle nut 14, the pawl 18, the spring device 10 and the plunger 8 together represent a drive chain is provided by the setting energy to drive the fastener 3 into the ground.
  • the individual elements of the drive chain are subject to manufacturing tolerances.
  • the amount of set energy released by the drive chain can be set in a defined operating state after assembly of the bolt setting device 1; 41; 51 and adjusted with adjustment elements, such as belt tensioners, or washers.
  • the bolt setting device 1; 41; 51 an electronic adjusting device for adjusting the setting energy.
  • the spring device 10 is designed so that the clamping operation of the spring device 10, for example via the electric drive 25, can be controlled. After assembly of the bolt setting device 1; 41; 51 or only the drive chain, the amount of set energy supplied may be measured and the controller 28 programmed with this information.
  • This process can in a final test of the bolt-firing device 1; 41; 51 or the drive chain run automatically.
  • cost-effective drive elements can be installed with relatively large tolerances.
  • the electronic adjusting device can be ensured in a simple manner that all devices or drive chains deliver the same amount of set energy in a defined operating state.
  • novel bolt setting tools are also suitable for other purposes, in particular for driving in nails, rivets, pins, dowels and the like fasteners in any substrates.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP11189268.3A 2010-12-15 2011-11-16 Outil électrique de fixation de boulons Active EP2465641B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010063176A DE102010063176A1 (de) 2010-12-15 2010-12-15 Elektrisch betreibbares Bolzensetzgerät

Publications (3)

Publication Number Publication Date
EP2465641A2 true EP2465641A2 (fr) 2012-06-20
EP2465641A3 EP2465641A3 (fr) 2013-10-30
EP2465641B1 EP2465641B1 (fr) 2014-12-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11189268.3A Active EP2465641B1 (fr) 2010-12-15 2011-11-16 Outil électrique de fixation de boulons

Country Status (9)

Country Link
US (1) US20120153001A1 (fr)
EP (1) EP2465641B1 (fr)
JP (1) JP5898823B2 (fr)
CN (1) CN102528749A (fr)
AU (1) AU2011253999B2 (fr)
CA (1) CA2760316A1 (fr)
DE (1) DE102010063176A1 (fr)
ES (1) ES2527018T3 (fr)
TW (1) TW201231229A (fr)

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EP2923803A1 (fr) * 2014-03-27 2015-09-30 HILTI Aktiengesellschaft Procédé et appareil de travail destiné à enfoncer des éléments de fixation
AT523156B1 (de) * 2019-12-18 2021-06-15 Rohrmoser Florian Elektrisch-mechanisch betriebenes Werkzeug zum Eintreiben von Befestigungsmitteln
WO2021244788A1 (fr) * 2020-06-05 2021-12-09 Adolf Würth GmbH & Co. KG Appareil à main équipé d'un ensemble capteur pour caractériser un support usiné

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DE102011075882A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Eintreibvorrichtung
DE102011089860A1 (de) * 2011-12-23 2013-06-27 Hilti Aktiengesellschaft Eintreibvorrichtung
DE102012206761A1 (de) * 2012-04-25 2013-10-31 Hilti Aktiengesellschaft Handgeführtes Arbeitsgerät und Verfahren zum Betreiben eines handgeführten Arbeitsgeräts
DE102012219288A1 (de) * 2012-10-23 2014-04-24 Hilti Aktiengesellschaft Eintreibvorrichtung mit einstellbarem Federspeicher
CN107187224A (zh) * 2017-07-12 2017-09-22 昆山松田工业自动化设备有限公司 用于电动车车架打钢印的多功能一体机
JP6479248B1 (ja) 2018-12-11 2019-03-06 株式会社東日製作所 締付装置

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Publication number Priority date Publication date Assignee Title
EP2923803A1 (fr) * 2014-03-27 2015-09-30 HILTI Aktiengesellschaft Procédé et appareil de travail destiné à enfoncer des éléments de fixation
AT523156B1 (de) * 2019-12-18 2021-06-15 Rohrmoser Florian Elektrisch-mechanisch betriebenes Werkzeug zum Eintreiben von Befestigungsmitteln
AT523156A4 (de) * 2019-12-18 2021-06-15 Rohrmoser Florian Elektrisch-mechanisch betriebenes Werkzeug zum Eintreiben von Befestigungsmitteln
WO2021244788A1 (fr) * 2020-06-05 2021-12-09 Adolf Würth GmbH & Co. KG Appareil à main équipé d'un ensemble capteur pour caractériser un support usiné

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Publication number Publication date
JP5898823B2 (ja) 2016-04-06
EP2465641B1 (fr) 2014-12-17
CN102528749A (zh) 2012-07-04
US20120153001A1 (en) 2012-06-21
EP2465641A3 (fr) 2013-10-30
DE102010063176A1 (de) 2012-06-21
AU2011253999B2 (en) 2014-08-28
TW201231229A (en) 2012-08-01
AU2011253999A1 (en) 2012-07-05
CA2760316A1 (fr) 2012-06-15
ES2527018T3 (es) 2015-01-19
JP2012135867A (ja) 2012-07-19

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