EP3681677B1 - Elektrowerkzeug - Google Patents

Elektrowerkzeug Download PDF

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Publication number
EP3681677B1
EP3681677B1 EP18768845.2A EP18768845A EP3681677B1 EP 3681677 B1 EP3681677 B1 EP 3681677B1 EP 18768845 A EP18768845 A EP 18768845A EP 3681677 B1 EP3681677 B1 EP 3681677B1
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EP
European Patent Office
Prior art keywords
power tool
light emitting
emitting device
signal
type
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.)
Active
Application number
EP18768845.2A
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English (en)
French (fr)
Other versions
EP3681677A1 (de
Inventor
Carl Johan Erik Wallgren
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.)
Atlas Copco Industrial Technique AB
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Atlas Copco Industrial Technique AB
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Publication of EP3681677A1 publication Critical patent/EP3681677A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/18—Devices for illuminating the head of the screw or the nut

Definitions

  • the invention relates to a power tool, a tightening supervising system for a power tool, a method and a computer readable storage medium.
  • WO 2016120125 A2 shows an example of a tightening supervise system for a power screw driver.
  • a light emitting device is provided on the power screw driver and arranged to selectively directed a light beam onto that next screw joint in a programmed sequence.
  • the light emitting device is also arranged to direct a light beam onto a screw joint or joints that have been left unattended or indicated as unsatisfactory tightened according to a control unit program.
  • the screw joint tightening sequence is clearly pointed out, and the operator is quickly and easily informed which one of the screw joints has not been attended to in correct order or not been tightened properly during the assembly process. A correction of the faulty joint or joints may then be made to complete the assembly process such that the quality of the assembled object is guaranteed.
  • Figure 1 which shows a view of a power tool according an exemplary embodiment of the present invention.
  • FIG. 1 illustrates a power tool 10 according to an exemplary embodiment of the present disclosure.
  • the power tool 10 comprises an elongate tubular housing 12 intended to be used as a handle for manual guiding of the screw driver 10, and an output shaft 13 extending coaxially with the housing 12.
  • the power tool 10 is intended for tightening a number of screw joints on an object to be assembled.
  • the screw joints are located at different positions on the object, and in order to obtain a desired clamping load on the parts of the object the screw joints may be tightened in a certain sequence.
  • the power tool 10 comprises a light emitting device 20 in the front part arranged to light up the screw joint.
  • the power tool 10 is operative to retrieve a signal indicating the position of the power tool 10 in relation to a number of screw joints on an object to be assembled.
  • the power tool 10 is further operative to provide a first type of light signal from the light emitting device 20 in case the signal indicates that the power tool 10 is positioned in relation to the screw joint next to be tighten and a second type of light signal in case the signal indicates that the power tool 10 is positioned in another position.
  • the power tool 10 is operative to provide the first type of light signal from the light emitting device 20 in case the signal indicates that the power tool 10 is positioned in relation to the screw joint next to be tighten and the second type of light signal in case the signal indicates that the power tool 10 is positioned in another position.
  • the signal is in an exemplary embodiment received from a power tool controller (not shown).
  • the signal is in another exemplary embodiment received from a process control unit.
  • the signal can be received via a wire connecting the power tool 10 to the power tool controller or process control unit.
  • the signal is received wirelessly.
  • the signal is generated by the power tool 10 itself.
  • the power tool 10 can be positioned in many different ways. How the power tool 10 is positioned is not essential to the invention and is thus not described in detail.
  • the close to the screw joint next to be tighten means that the close to the screw joint next to be tighten.
  • power tool 10 in relation to the screw joint next to be tighten means that power tool 10 is positioned right above the screw joint next to be tighten.
  • the power tool 10 in relation further comprises the power tool 10 being attached to the screw joint.
  • the power tool 10 attached to comprise the power tool 10 applying the correct axial force on the screw joint.
  • the first type of light signal is a first color and the second type of light signal is another color.
  • the power tool is further arranged to provide a third type of light signal in case the power tool fulfills yet another condition, such as e.g. being positioned perpendicular to the object to be assembled and/or the power tool 10 applying the correct axial force on the screw joint.
  • the light emitting device 20 is a LED, Light Emitting Diode, arranged to emit both the first color and the another color.
  • FIG. 10 Another aspect of the present disclosure relates to a tightening supervising system comprising the power tool 10 according to any of the above described exemplary embodiments.
  • the tightening supervising system further comprising a position system operative to determine the position of the power tool 10 in relation to a number of screw joints on an object to be assembled.
  • the power tool 10 is connected to a fixed structure via a reaction support while permitting free movability of the power tool 10.
  • the position system includes sensors provided on the reaction support to provide signals indicating the position of the power tool 10.
  • pivots on arms of the reaction support are provided with angle sensors, which are connected to the positioning system.
  • the tightening supervising system comprises a process control unit connected to the position system and operative to determine the next screw joint to be tightened.
  • the process control unit is programmed with the number and the individual coordinates of the screw joints of the object, and by using the positioning system the actual position of the power tool 10 is calculated. By comparing the calculated actual position of the screw driver 10 with the screw joint coordinates it can be determined which one of the screw joints is presently attended to by the screw driver 10 and whether the screw driver 10 has attended all of the screw joints on the object. The process control unit then generate the signal indicating the position of the power tool 10 in relation to a number of screw joints on an object to be assembled.
  • control unit is also programmable with data by which the screw joints should be tightened, and if a deviation between the programmed data and the data actually experienced during tightening of each screw joint the signal is generated.
  • the signal is then received by the power tool 10 which is operative to provide a third type of light signal from the light emitting device 20.
  • Such third type of light signal from the light emitting device 20 make the operator aware that a tightening error has occurred.
  • the process control unit may also be configured so that the signal indicates that the power tool 10 has failed to tighten the screw joint. As the signal indicates that an error has been detected the operator only has to move the screw driver 10 across the assembled object and the type of light signal from the light emitting device 20 will notify the operator that the power tool 10 has failed to tighten the screw joint.
  • the process control unit may also be configured to generate the signal that indicates when all joints of a work piece have been correctly tightened.
  • the signal could also indicate when a desired target, such as a target torque has been met for the joint, or indicate if the desired target is not met. When all joints have been correctly the signal may indicate that.
  • the present disclosure also relates to a method, performed in the power tool 10 comprising a light emitting device 20 arranged to light up the screw joint on an object to be assembled.
  • the power tool 10 retrieves a signal indicating the position of the power tool 10 in relation to a number of screw joints on an object to be assembled.
  • the electric pulse tool 10 provides a first type of light signal from the light emitting device 20 in case the signal indicates that the power tool 10 is positioned in relation to the screw joint next to be tighten and a second type of light signal in case the signal indicates that the power tool 10 is positioned in another position.
  • the light emitting device 20 is arranged in the front part of the power tool 10. In another exemplary embodiment of the method the light emitting device 20 further comprises another light emitting device in another part of the power tool 10.
  • the first type of light signal is a first color and the second type of light signal is another color.
  • the light emitting device 20 is a LED, Light Emitting Diode, arranged to emit both the first color and the another color.
  • the present disclosure also relates to a computer-readable storage medium, having stored there on a computer program which, when run in the power tool 10, causes the power tool 10 to perform the method as described above.
  • the above-mentioned computer program code when the above-mentioned computer program code is run in a processor (not shown) of the power tool 10 it causes the power tool 10 to perform the method as described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Claims (16)

  1. Elektrowerkzeug (10), umfassend eine lichtemittierende Vorrichtung (20), die so angeordnet ist, dass sie eine Schraubverbindung an einem zu montierenden Gegenstand beleuchtet, wobei das Elektrowerkzeug (10) betriebsfähig ist zum:
    - Abrufen eines Signals, das die Position des Elektrowerkzeugs (10) in Bezug auf eine Anzahl von Schraubverbindungen an einem zu montierenden Gegenstand anzeigt;
    - Bereitstellen eines ersten Typs von Lichtsignal von der lichtemittierenden Vorrichtung (20), wenn das Signal anzeigt, dass das Elektrowerkzeug (10) in Bezug auf die als nächstes anzuziehende Schraubverbindung positioniert ist,
    dadurch gekennzeichnet, dass das Elektrowerkzeug ferner dazu betriebsfähig ist, einen zweiten Typ von Lichtsignal bereitzustellen, falls das Signal anzeigt, dass das Elektrowerkzeug (10) in einer anderen Position positioniert ist, und
    dass das Elektrowerkzeug ferner so angeordnet ist, dass es einen dritten Typ von Lichtsignal bereitstellt, wenn das Elektrowerkzeug eine weitere Bedingung erfüllt, wie z. B. dass es senkrecht zu dem zu montierenden Gegenstand positioniert ist und/oder das Elektrowerkzeug (10) die korrekte axiale Kraft auf die Schraubverbindung ausübt.
  2. Elektrowerkzeug (10) nach Anspruch 1, wobei die lichtemittierende Vorrichtung (20) in dem vorderen Teil des Elektrowerkzeugs (10) angeordnet ist.
  3. Elektrowerkzeug (10) nach Anspruch 2, wobei die lichtemittierende Vorrichtung (20) ferner eine andere lichtemittierende Vorrichtung in einem anderen Teil des Elektrowerkzeugs (10) umfasst.
  4. Elektrowerkzeug (10) nach einem der Ansprüche 1 bis 3, wobei die Beziehung ferner umfasst, dass das Elektrowerkzeug (10) an der Schraubverbindung angebracht ist.
  5. Elektrowerkzeug (10) nach Anspruch 4, wobei das Anbringen umfasst, dass das Elektrowerkzeug (10) die korrekte axiale Kraft auf die Schraubverbindung ausübt.
  6. Elektrowerkzeug (10) nach einem der Ansprüche 1 bis 5, wobei der erste Typ von Lichtsignal eine erste Farbe und der zweite Typ von Lichtsignal eine andere Farbe ist.
  7. Elektrowerkzeug (10) nach einem der vorstehenden Ansprüche, wobei die lichtemittierende Vorrichtung (20) eine LED, lichtemittierende Diode, ist, die so angeordnet ist, dass sie sowohl die erste Farbe als auch die andere Farbe ausstrahlt.
  8. Schraubüberwachungssystem, umfassend das Elektrowerkzeug (10) nach einem der Ansprüche 1 bis 5, das Schraubüberwachungssystem ferner umfassend ein Positionierungssystem zur Bestimmung der Position des Elektrowerkzeugs (10) in Bezug auf eine Anzahl von Schraubverbindungen an einem zu montierenden Gegenstand.
  9. Schraubüberwachungssystem nach Anspruch 8, ferner umfassend eine Prozesssteuereinheit, die mit dem Positionssystem verbunden ist und die Bestimmung der nächsten anzuziehenden Schraubverbindung ermöglicht.
  10. Schraubüberwachungssystem nach einem der Ansprüche 8 oder 9, wobei das Elektrowerkzeug (10) über eine Reaktionsstütze mit einer festen Struktur verbunden ist, während es eine freie Beweglichkeit des Elektrowerkzeugs (10) zulässt, und das Positionierungssystem Sensoren einschließt, die an der Reaktionsstütze vorgesehen sind, um Signale bereitzustellen, die die Position des Elektrowerkzeugs (10) anzeigen.
  11. Verfahren in einem Elektrowerkzeug (10), das eine lichtemittierende Vorrichtung (20) umfasst, die so angeordnet ist, dass sie die Schraubverbindung an einem zu montierenden Gegenstand beleuchtet, wobei das Verfahren die folgenden Schritte umfasst:
    - Abrufen eines Signals, das die Position des Elektrowerkzeugs (10) in Bezug auf eine Anzahl von Schraubverbindungen an einem zu montierenden Gegenstand anzeigt;
    - Bereitstellen eines ersten Typs von Lichtsignal von der lichtemittierenden Vorrichtung (20), wenn das Signal anzeigt, dass das Elektrowerkzeug (10) in Bezug auf die als nächstes anzuziehende Schraubverbindung positioniert ist, und eines zweiten Typs von Lichtsignal, wenn das Signal anzeigt, dass das Elektrowerkzeug (10) in einer anderen Position positioniert ist; und
    - Bereitstellen eines dritten Typs von Lichtsignal von der lichtemittierenden Vorrichtung (20) für den Fall, dass das Elektrowerkzeug eine weitere Bedingung erfüllt, wie z. B. dass es senkrecht zu dem zu montierenden Gegenstand positioniert ist und/oder dass das Elektrowerkzeug die korrekte axiale Kraft auf die Schraubverbindung ausübt.
  12. Verfahren nach Anspruch 11, wobei die lichtemittierende Vorrichtung (20) in dem vorderen Teil des Elektrowerkzeugs (10) angeordnet ist.
  13. Verfahren nach Anspruch 12, wobei die lichtemittierende Vorrichtung (20) ferner eine andere lichtemittierende Vorrichtung in einem anderen Teil des Elektrowerkzeugs (10) umfasst.
  14. Verfahren nach einem der Ansprüche 11 bis 13, wobei der erste Typ des Lichtsignals eine erste Farbe und der zweite Typ von Lichtsignal eine andere Farbe ist.
  15. Verfahren nach Anspruch 14, wobei die lichtemittierende Vorrichtung (20) eine LED, lichtemittierende Diode, ist, die so angeordnet ist, dass sie sowohl die erste Farbe als auch die andere Farbe ausstrahlt.
  16. Computerlesbares Speichermedium, auf dem ein Computerprogramm gespeichert ist, das, wenn es in einem Elektrowerkzeug (10) nach Anspruch 1 ausgeführt wird, das Elektrowerkzeug (10) veranlasst, das Verfahren nach einem der Ansprüche 11 bis 15 auszuführen.
EP18768845.2A 2017-09-13 2018-09-07 Elektrowerkzeug Active EP3681677B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1730248 2017-09-13
PCT/EP2018/074161 WO2019052920A1 (en) 2017-09-13 2018-09-07 POWER TOOL

Publications (2)

Publication Number Publication Date
EP3681677A1 EP3681677A1 (de) 2020-07-22
EP3681677B1 true EP3681677B1 (de) 2024-05-15

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ID=63556321

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EP18768845.2A Active EP3681677B1 (de) 2017-09-13 2018-09-07 Elektrowerkzeug

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EP (1) EP3681677B1 (de)
CN (1) CN111065489A (de)
WO (1) WO2019052920A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114096381B (zh) * 2019-06-20 2023-12-22 阿特拉斯·科普柯工业技术公司 用于可连接至电动工具的插槽或钻头的便携式插槽支架
US20220274247A1 (en) * 2019-06-20 2022-09-01 Atlas Copco Industrial Technique Ab Portable socket holder for sockets or bits connecteable to a power tool

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011131330A (ja) * 2009-12-24 2011-07-07 Nitto Seiko Co Ltd ねじ締め機
CN101890635B (zh) * 2010-06-28 2012-10-24 三一电气有限责任公司 一种回转支承与轮毂连接用螺栓拧紧机
US8700202B2 (en) * 2010-11-30 2014-04-15 Trimble Navigation Limited System for positioning a tool in a work space
GB2486658A (en) * 2010-12-21 2012-06-27 Crane Electronics Torque tool positioning system
CN104209740A (zh) * 2014-08-29 2014-12-17 宁波富乐礼机器人科技有限公司 一种螺丝自动定位拧紧结构
WO2016120125A1 (en) * 2015-01-27 2016-08-04 cATLAS COPCO INDUSTRIAL TECHNIQUE AB A tightening supervising system for a power screw driver
CN105575064A (zh) * 2015-12-29 2016-05-11 重庆依凯科技有限公司 预防打错螺丝设备及控制方法

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CN111065489A (zh) 2020-04-24
WO2019052920A1 (en) 2019-03-21
EP3681677A1 (de) 2020-07-22

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