EP2865492A1 - Visseuse - Google Patents

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Publication number
EP2865492A1
EP2865492A1 EP20140003588 EP14003588A EP2865492A1 EP 2865492 A1 EP2865492 A1 EP 2865492A1 EP 20140003588 EP20140003588 EP 20140003588 EP 14003588 A EP14003588 A EP 14003588A EP 2865492 A1 EP2865492 A1 EP 2865492A1
Authority
EP
European Patent Office
Prior art keywords
deformation
bus
screwing
screwing machine
drive
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
EP20140003588
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German (de)
English (en)
Other versions
EP2865492B1 (fr
Inventor
Manfred Geller
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.)
Alfing Montagetechnik GmbH
Original Assignee
Alfing Montagetechnik GmbH
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 Alfing Montagetechnik GmbH filed Critical Alfing Montagetechnik GmbH
Publication of EP2865492A1 publication Critical patent/EP2865492A1/fr
Application granted granted Critical
Publication of EP2865492B1 publication Critical patent/EP2865492B1/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
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers

Definitions

  • the invention relates to a screwdriver, in particular a hand-held screwdriver, with a tool holder for receiving a screwing tool and a drive for rotationally driving the tool holder, wherein the drive comprises a particular electric drive motor whose output for generating a torque to the tool holder directly or via a gear is rotationally coupled to the tool holder, wherein the drive is accommodated in a housing of the screwing and is supported by a deformation body on the housing, wherein the screwing machine has at least one deformation sensor for detecting a deformation of the deformation body when screwing a screw, in which the drive is supported with a screw torque on the deformation body, and wherein the screwdriver has a bus interface for the transmission of bus messages, based on an output signal of the at least one deformation sensor rs are formed and represent the screw torque.
  • the drive comprises a particular electric drive motor whose output for generating a torque to the tool holder directly or via a gear is rotationally coupled to the tool holder
  • the drive
  • Such a screwdriver is eg in WO2011120579A1 shown schematically.
  • the applicant manufactures screwing machines of the type mentioned, wherein the bus interface based on a printed circuit board is realized, which is electrically connected to the at least one deformation sensor.
  • the electrical lines lead from the deformation sensor on the drive motor over to the printed circuit board, which processes the signals of the at least one deformation sensor and provides it via the bus, for example for a control device of a screwing station.
  • the control device controls the screwing machine, for example by monitoring the torque and switching off the drive motor when the screw to be screwed is screwed in with the desired torque, that is to say a desired torque.
  • the torque cutoff works satisfactorily in practice.
  • the individual adaptation of screwing, especially the calibration, with the known arrangement is difficult.
  • an evaluation device for the output signal of the at least one deformation sensor and a bus coupler for generating and transmitting the bus messages are arranged directly on the deformation body and form an integrated Antriebsabstützbauritt with the deformation body.
  • the bus interface and the deformation body form an integrated unit, namely the Antriebsabstweilbauaji.
  • the individual parameters of this Antriebsabstützbauritt for example, the characteristics of the at least one deformation sensor can be introduced directly into the modular component, namely the Antriebsabstweilbauaji.
  • the Antriebsabstützbauritt can quasi as a module in different equipped screwing machines are installed and already integrally provides the evaluation of the sensor signals and the bus interface.
  • An electrical connection to an evaluation unit arranged at another point of the screwdriver, the adaptation of such evaluation electronics to the deformation sensors respectively used on the deformation element and the like are not necessary, but can be carried out on site, namely on the drive support assembly. This represents, so to speak, a module which can simply be installed in the respective screwdriver or the screwdriver. With regard to production and spare parts procurement, this is of great advantage.
  • the drive support assembly may be a type of transducer that may be incorporated into the manufactured screwdrivers.
  • the Antriebsabstützbautechnik can be pre-produced, for example, be calibrated, and then installed as needed in the screwdrivers.
  • the module of the Antriebsabstützbauritt can form a unique, so to speak, which can be installed in an otherwise pre-produced screwdriver, so to speak, a "raw" spindle.
  • the signal processing of the at least one output signal of the at least one deformation sensor takes place on site, namely on the module of the Antriebsabstützbautician, so that only short cable paths between on the one hand the sensor arrangement with the at least one deformation sensor and on the other hand, the evaluation and the bus coupler are necessary.
  • a signal corruption which can occur, for example, in near-by, for example, the drive motor and its electric field passed sensor signals is thereby avoided or will in any case significantly reduced.
  • a suppression is not necessary or to a lesser extent.
  • the at least one output signal is output by the evaluation device, e.g. only digitized, but can also be modified.
  • the evaluation device comprises e.g. at least one analog / digital converter.
  • the evaluation device prefferably stores the at least one output signal, e.g. converted with a conversion factor and / or makes a level adjustment or otherwise modified.
  • the bus coupler can z.
  • a bus is to be understood as any type of serial digital data transmission.
  • the screwdriver can, of course, have further bus couplers, for example it can be provided that the bus coupler provided in the evaluation device or forming part of the drive support assembly communicates via an internal bus with a bus coupler provided for external bus communication. It is possible, for example, that the bus coupler forming part of the drive support unit communicates via an I2C bus with the "external" bus coupler, which in turn communicates with the control device, for example via wired or wireless Ethernet or another bus.
  • the integrated Antriebsabstützbauritt is thus installed as a module component in the housing of the screwdriver.
  • the module Abstützbauritt thus forms, for example, a kind of torque detection module with integrated bus coupler and evaluation.
  • Flexible lines have the advantage that no mechanical stress from the evaluation device, for example a conductor body, on which the evaluation device is arranged, and the sensor arrangement with the at least one deformation sensor occurs.
  • the drive motor can thus - which is also not shown in the drawing - thus also supported on the switched between the drive motor and the tool holder gear on the Antriebsabstützbauiser ultimately on the housing of the screwdriver.
  • the embodiment shown in the drawing provides that the transmission is supported by the Antriebsabstützbauritt on the housing of the screwdriver.
  • the gearbox is floatingly received in the housing of the screwdriver and is supported by the deformation body on the housing of the screwdriver.
  • the gear itself is driven by the drive motor and in turn drives the tool holder.
  • the Antriebsabstützbauritt expediently connected to the bus coupler electrical connections or connecting cables for the transmission of the bus messages.
  • a bus line leads directly to the Antriebsabstweilbauech.
  • the connection lines can be firmly connected to, for example, a conductor body which carries the evaluation device and / or in Buskoppler. But there can also be provided plug-in contacts for insertion of such leads.
  • the connecting line expediently comprises a bus line. Also electrical supply lines may be part of the connection cable.
  • the bus coupler and / or the evaluation device are expediently arranged on a conductor body. It can of course be provided a plurality of conductor body, one of which carries the bus coupler, another the evaluation device. Also other components, which will be mentioned below, can each be arranged an individual conductor body. Between the conductor body then electrical lines are provided, for example flexible conductor sections of a conductor body or dedicated individual electrical cables or wires.
  • the conductor body for adapting to a contour of the deformation body, on which the conductor body is arranged is bending-flexible overall or has flexurally flexible sections. It can be provided that individual sections of the conductor body are fixed in order to arrange there for example electrical components, for example by means of soldered connection, while other sections of the Conductor body are bend flexible to allow adaptation to the contour of the deformation body.
  • a further embodiment of the invention which can also be combined with the flexural flexibility, provides that the conductor body has a ladder body contour adapted to the contour of the deformation body.
  • a plurality of deformation sensors are provided, for example two, four or more. It is preferred if the deformation sensors are arranged angularly spaced, for example, over an outer circumference or an inner circumference of the deformation body.
  • the at least one deformation sensor or a sensor arrangement comprising a plurality of deformation sensors is arranged between the conductor body and the deformation body.
  • the sandwich arrangement, in which the respective deformation sensor forms the protected middle layer, so to speak, is mechanically particularly resilient.
  • the ladder body protects, so to speak, the at least one deformation sensor.
  • the at least one deformation sensor advantageously comprises a strain sensor, for example a strain gauge.
  • the conductor body may be configured as a kind of housing or protective housing. It is preferred if the conductor body, for example a circuit board, in particular also a bend-flexible sections having board einhaust the at least one arranged on the deformation body deformation sensor.
  • the conductor body may be, for example, a cylindrical or form part-cylindrical protective housing for the at least one deformation sensor.
  • the conductor body and the components arranged thereon are mechanically stressed as little as possible.
  • a preferred embodiment of the invention provides for this case, for example, that the conductor body for decoupling from a torsion of the deformation body is floatingly supported on the deformation body. It is also possible that the floating arrangement is only partially realized, i. E. that an embodiment of the invention expediently provides that the conductor body is connected to the deformation body in a rotationally fixed manner only at one point or only one circumferential position.
  • an advantageous embodiment of the invention provides that the conductor body integrally has flexible terminals for electrical connection to the at least one deformation sensor.
  • the conductor body integrally has flexible terminals for electrical connection to the at least one deformation sensor.
  • contact lugs or the like other flexibly projecting terminal projections may be provided, which can be connected to the or the deformation sensor and.
  • bus coupler and the evaluation device are formed by a single integrated electrical circuit component.
  • evaluation and bus coupling are realized in a single circuit component, so that electrical interference, such as electromagnetic fields, and the like other external influences as possible not come to fruition.
  • the Antriebsabstützbauü expediently comprises at least one programmable and / or programmed memory, e.g. an EPROM, EEPROM or the like.
  • the programmable memory can already be pre-programmed, but also be reprogrammed.
  • a programming expediently takes place via the bus interface, for example to store calibration data or the like in the memory.
  • the programming can, as I said, easily done via the bus interface, but also via a separate, provided on the Antriebsabstützbausaku Parametrieritesstelle.
  • the memory may store a variety of useful data, for example identification data.
  • identification data for example, the Antriebsabstweilbauritt, the screwdriver or both, be identifiable.
  • a serial number, a type designation or the like of the drive support assembly or the screwdriver may be stored in the memory.
  • the information that is advantageously stored in the memory may, for example, the type of deformation sensor or the deformation sensors and / or its usual characteristics and / or error quantities and / or calibration factors or the like.
  • a scaling or conversion factor for torque values that the Antriebsabstützbaustechnik reports on the bus interface may be stored in the memory.
  • nominal values are advantageously stored in the memory, for example nominal values, which characterize the drive support assembly for detection for specific torque ranges (50 Newton meters, 100 Newton meters or the like).
  • the memory forms a part of the evaluation device.
  • a preferred embodiment of the invention provides that the memory is a separate component, which is still clear in the drawing.
  • the memory is connected to the bus interface.
  • the parameterization or the writing of the memory and the output of the bus messages can be realized on one and the same bus.
  • the coupling to, for example, a control device is particularly simple.
  • the deformation body is designed as a sleeve or has a sleeve with which a motor housing of the drive motor is rotatably connected.
  • the sleeve in turn is rotatably connected to the housing of the screwdriver.
  • the design as a sleeve makes it possible, for example, that it can accommodate a component of the drive, for example a housing component of the drive motor. It is particularly preferred, which is also clear in the drawing, when the sleeve is penetrated by an output of the drive motor or by an output shaft which is connected to the output or is formed by the output.
  • the deformation body expediently has a drive flange for in particular positive connection with the drive, in particular the transmission of the drive, and a support flange for supporting on the housing of the screwdriver.
  • the at least one deformation sensor, the evaluation device and the bus coupler (or the integrated module, the evaluation device and bus coupler realized) are advantageously arranged between the support flange and the drive flange. If the already mentioned ladder body is present, this is of course also taken advantage protected between support flange and drive flange.
  • the screwdriver is designed as an angle wrench or rod screwdriver or pistol screwdriver.
  • the screwdriver may have a local power supply, for example a battery pack.
  • the screwdriver forms part of a screwing station.
  • a screwing station e.g. Components of a motor vehicle bolted.
  • a preferred field of application of the screwing machine according to the invention is the industrial assembly technology.
  • the screwdriver is advantageously connected to a control device for controlling the screwdriver, for example via electrical lines or wirelessly. Furthermore, the screwdriver for transmitting the bus messages to the controller is configured.
  • a bus line eg Ethernet
  • a wireless bus connection is realized between the screwdriving machine and the control device, eg WLAN.
  • the bus is conveniently an I2C bus. But even a fieldbus, an Ethernet interface or the like are readily feasible.
  • FIG. 1 shown screwing 10 includes a control device 11, for example, basically constructed as an industrial control.
  • the control device 11 is provided with a bus interface 14 so that it communicates with a screwdriver 20 via control line 15 (a wireless connection would be conceivable).
  • the controller 11 controls the screwdriver 20 via the Control line 15.
  • the control line 15 expediently comprises electrical supply lines and lines for bus communication.
  • the control device 11 has a processor 12 which executes program code of a control module 13 with which the control device 11 controls the screwdriver 20.
  • the control device 11 thus sends control signals to the screwdriver 20, while this in turn reports back their function to the control device 11, for example, torque data sent, which will become clear later.
  • the screwdriver 20 has a housing 21 that can be comfortably gripped by an operator on a handle portion 22. From the handle portion 22 for the control line 15 to the controller 11 there is namely an electrical connection 24, such as a socket or the like, into which a not shown in the drawing individual plug can be plugged into the control line 15.
  • the housing 21 also has a drive section 23, in which a drive 37 is arranged. About a switch 25 on the handle portion 22, the drive 37 can be turned on and off.
  • the drive 37 comprises a drive motor 26 and a gear 38.
  • the gear 38 comprises a reduction gear 27, for example a planetary gear, and a bevel gear 28 at the head of the drive section 23 and at the head of the housing 21.
  • At the output of the bevel gear 28 and thus the Gear 38 is a tool holder 29 for holding and receiving a tool 30, for example, a screwdriver bit, a nut or the like.
  • the reduction gear 27 and the angle gear 28 are accommodated, for example, in a gear housing portion 31 of the housing 21.
  • the gear housing section 31 is located next to the drive section 23 of the housing 21.
  • the drive motor 26, in the present case an electric drive motor, has an output 32 which is connected in a rotationally fixed manner to an output shaft 33.
  • the output shaft 33 drives an output gear 34, which is arranged centrally in a planetary gear set 35 of the reduction gear 27 and drives the planetary gear set 35.
  • An output gear shaft 36 of the reduction gear 27 drives in any case the angle gear 28 at.
  • the deformation body 40 has a drive flange 41, which is rotatably connected to the drive 37, namely its transmission 38.
  • the drive flange 41 is arranged on a sleeve portion 44 of the deformation body 40.
  • the deformation body 40 itself forms a sleeve 46.
  • the sleeve portion 44 has a passage opening 45 which is penetrated by the output 32 and the output shaft 33.
  • a support flange 47 is disposed at the other longitudinal end of the sleeve portion 44.
  • a toothing 48 On the outer circumference of the drive flange 41 is a toothing 48, which allows a rotationally fixed stop on a gear housing 94 of the transmission 38.
  • the sleeve 46 and the deformation body 40 rotatably, in the embodiment of the support flange 47, connected to the housing 21, so that the drive 37, namely the Transmission 38, supported by the deformation body 40 on the housing 21.
  • pins 42 are inserted through holes 43 of the support flange 47 and pinned to the housing 21.
  • the pins 42 penetrate, for example, into corresponding receptacles on an intermediate wall 39 of the housing 21, on which advantageously also the drive motor 26 is supported.
  • deformation sensors 51, 52, 53 are arranged, which detect a deformation of the sleeve portion 44, so a torsion, when torque is applied by the drive motor 26.
  • Deformation sensors 51-53 include, for example, strain gauges.
  • deformation sensors 51-53 are indicated schematically.
  • a larger number of deformation sensors are used for measuring accuracy, for example in the sense of a linear recording of the measured values.
  • the deformation sensors 51-53 are connected via lines 54 to an evaluation device 55 which evaluates output signals of the deformation sensors 51-53 and outputs them via a bus coupler 56 on an internal bus 57.
  • the evaluation device 55 may be preceded by a filter assembly, not shown, for filtering the signals of the deformation sensors 51-53.
  • the filter assembly may also form part of the evaluation device 55.
  • the internal bus 57 leads to a bus converter 59 or bus buffer, whose output side, in turn, has bus connections 63 for the connection of bus lines leading, for example, to the control line 15.
  • the bus converter 59 may include a buffer and / or a level adjuster and / or a protocol converter for converting a first bus protocol communicated on the internal bus 57 into a second bus protocol communicated on the control line 15.
  • the internal bus 57 which is guided via the bus converter 59 to the outside, with another Bus coupler 91 communicates, which in turn makes the communication with the controller 11.
  • the internal bus 37 may be an I2C bus, while the external bus is, for example, an Ethernet bus, which is then served by the further bus coupler 91.
  • the bus coupler 91 is, for example, part of a local control electronics of the screwdriver 10, which is configured, for example, for controlling the drive motor 26 and / or carries out a torque measurement treatment or the like can perform other tasks.
  • a memory 61 To the internal bus 57 is further connected via a further bus coupler 60, a memory 61.
  • the memory 61 and the bus coupler 60 are also realized as an integrated component, namely a component 62.
  • a supply component 64 serves to provide stable voltage electrical power to the component 62 and the circuit component 58.
  • the supply component 64 may be e.g. a voltage transformer and / or a voltage stabilizer.
  • the supply component 64 is electrically connected, for example, to electrical power supply terminals 74 via lines 75 and supplies the circuit component 58 and the component 62 with the memory 61 via non-individually designated electrical energy lines schematically represented by arrows 89.
  • the circuit component 58, the component 62 and the supply component 64 and the bus converter 59 are arranged on a conductor body 65 having a plurality of sections, namely fixed portions 66, 67, 68, which are interconnected via flexible portions 69, 70.
  • the fixed sections 66, 67 and 68 serve, so to speak, as a carrier for the non-flexible components the torque evaluation and bus coupling circuitry, which are integrally disposed on the deformation body 40 and together form a drive support assembly 90.
  • the conductor body 65 can be adapted to the outer contour of the sleeve 46 in the sleeve portion 44, e.g. also be shaped sleeve-shaped.
  • Conductor body 65 so to say shaped into a cylinder, a protective housing 71 and protects the deformation sensors 51-53, which are arranged directly outside on the outer circumference 50 of the sleeve portion 44.
  • the lines 54 lead, so to speak radially outwards or in the view according to FIG. 5 up or down to terminals 72 which are electrically connected to the evaluation device 55.
  • through-connections or the like of other openings are provided at the terminals 72, so that the lines 54 can, as it were, be led through the conductor body 65 to the upper side, where an electrical solder connection can be produced easily.
  • the fixed portions of the conductor body 65 may also include at least one fixed portion provided for electrical connections.
  • the fixed portion 66 does not contain the terminals 72 integrally, but that a separate, also advantageously solid board or a fixed portion of the conductor body 65 is provided, for example represented by a separated area 92.
  • the sub-board or The section 68 may be subdivided and have an area or a sub-board 93, which the Terminals 74, 93.79. Between the remaining, so to speak, remaining fixed portions 66 'and 68' and the fixed terminal portions 93 and 92, for example, flexible conductor tracks, flexible electrical lines or the like are provided.
  • connection projections 73 are provided, which can be bent radially inward, that is to the outer circumference 50 and the deformation sensors 51-53, to make there the electrical contact.
  • the connection projections 73 form quasi-electrical connection lines for electrical connection to the deformation sensors 51-53.
  • connection projections 73 can, for example, be electrically connected to the deformation sensors 51-54 on the basis of soldering pads.
  • the soldering pads are provided, for example, on the undersides of the terminal projections 73 assigned to the deformation sensors 51-53 and on the deformation sensors 51-53 on the other hand.
  • the Antriebsabstützbautician 90 can be installed as a whole in the housing 21 of the screwdriver 20 during assembly and is a pre-assembled module, so to speak, which already realizes all the necessary features and functions.
  • bus couplers 60 and 56 have different bus addresses, so that the Antriebsabstützbautician 90 sends, for example, bus messages 77 at the address of the bus coupler 56, which are formed on the basis of the output signals 88 or measurement signals of the deformation sensors 51-53 (this example in digital form and) represent or include data about the torque measured at the drive support assembly 90, while bus messages 78 relate to data from the memory 61, such as bus message 77 evaluation information, such as conversion factors for the torque values, calibration factors, or the like.
  • connection 79 on the conductor body 65 it is also possible, for example, to set an only indicated level adjustment circuit and / or filter circuit 80 at the input of the evaluation device 55, for example to certain levels of the deformation sensors 51-53 and / or to certain values to be filtered analogously.
  • the terminals 74, 75 and the bus terminals 63 are, for example, electrically connected to the electrical connection 24 for the control line 15.
  • the deformation sensors 51-53 are protected between the two flanges of the sleeve 46, namely the support flange 47 and the drive flange 41 are arranged. There is also protected the Conductor body 65 received with the electrical components disposed thereon. So that the conductor body 65 and the electrical components arranged therein are mechanically stressed as little as possible, the conductor body 65, which can also be regarded as a protective housing 71, is fastened substantially floating on the sleeve 46. For example, only an anti-rotation in the form of a pin 81 is provided which protrudes from the support flange 47 and engages in a recess 82 on the conductor body 65 and thus prevents the conductor body 65 is rotated relative to the deformation body 40. There may be another, the pin 81 opposite pin for engagement in a recess 82 opposite recess 82 may be provided.
  • the sleeve-shaped formed conductor body 65 so to speak, the protective sleeve 71 is connected at its longitudinal ends, for example, by a connection 83, for example a wire element, and thus closed.
  • the conductor body 65 is thus wound, so to speak, around the sleeve portion 44 and then connected to the connection 83 at its longitudinal ends, so that a sleeve is formed.
  • the longitudinal narrow sides of the conductor body 65 are supported on the inner sides of the drive flange 41 and the support flange 47.
  • a step 84 is provided in each case, on which the conductor body 65 is supported.
  • the step 84 provides, so to speak, for a distance between the conductor body 65 and the underlying deformation sensors 51-53.
  • the conductor body 65 can be fixed, for example, by at least one securing ring 85 on the deformation body 40, fixed, but preferably floating. Such a ring allows For example, a certain rotational mobility of the conductor body 65 relative to the deformation body 40th
  • the conductor body 65 may also be replaced by an advantageously flexible seal, e.g. Silicone or the like, be held on the step 84.
  • the seal is provided, for example, as the aforementioned retaining ring 85 on the inner edge of the conductor body 65 and the drive flange 41 and the support flange 47.
  • the sectional view of the Antriebsabstützbautician 90 according to FIG. 5 is schematic, ie it shows the electrical components on the conductor body 65 only schematically.
  • the conductor body 65 may also comprise other electrical components, e.g. electrical resistors 86, capacitors 87 or the like, e.g. for wiring the circuit component 58, the supply component 64 and the component 62 are advantageous.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
EP14003588.2A 2013-10-23 2014-10-21 Visseuse Active EP2865492B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310017647 DE102013017647A1 (de) 2013-10-23 2013-10-23 Schraubmaschine

Publications (2)

Publication Number Publication Date
EP2865492A1 true EP2865492A1 (fr) 2015-04-29
EP2865492B1 EP2865492B1 (fr) 2016-06-01

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DE (1) DE102013017647A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019150214A1 (fr) * 2018-02-01 2019-08-08 Dino Paoli S.R.L. Outil à percussion
IT202200012266A1 (it) * 2022-06-09 2023-12-09 Kolver S R L Avvitatore elettrico industriale
US12090619B2 (en) 2020-12-11 2024-09-17 Makita Corporation Screwing machine and method for assembling screwing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802188A1 (de) * 1988-01-26 1989-08-31 Carl Walther Schraubenwerkzeug Kraftschrauber mit einem elektrischen antriebsmotor und einer diesem zugeordneten abschaltvorrichtung
EP2127812A1 (fr) * 2007-01-29 2009-12-02 Katsuyuki Totsu Procédé de détection d'un couple de charge sur un moteur électrique
WO2011120579A1 (fr) 2010-03-31 2011-10-06 Alfing Montagetechnik Gmbh Dispositif de montage et procédé de montage

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
AT326714B (de) * 1973-11-28 1975-12-29 Plasser Bahnbaumasch Franz Schlagschraubmaschine, insbesondere für schienenbefestigungsschraueen
DE3938787A1 (de) * 1989-11-23 1991-05-29 Gardner Denver Gmbh Elektroschrauber
DE29615123U1 (de) * 1996-08-30 1998-01-08 Eduard Wille Gmbh & Co, 42349 Wuppertal Elektronischer Meßschlüssel
DE202006014606U1 (de) * 2006-09-22 2007-01-04 Cooper Power Tools Gmbh & Co. Ohg Kabelloses Elektrowerkzeug und Fertigungssystem

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802188A1 (de) * 1988-01-26 1989-08-31 Carl Walther Schraubenwerkzeug Kraftschrauber mit einem elektrischen antriebsmotor und einer diesem zugeordneten abschaltvorrichtung
EP2127812A1 (fr) * 2007-01-29 2009-12-02 Katsuyuki Totsu Procédé de détection d'un couple de charge sur un moteur électrique
WO2011120579A1 (fr) 2010-03-31 2011-10-06 Alfing Montagetechnik Gmbh Dispositif de montage et procédé de montage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019150214A1 (fr) * 2018-02-01 2019-08-08 Dino Paoli S.R.L. Outil à percussion
US12090619B2 (en) 2020-12-11 2024-09-17 Makita Corporation Screwing machine and method for assembling screwing machine
IT202200012266A1 (it) * 2022-06-09 2023-12-09 Kolver S R L Avvitatore elettrico industriale

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Publication number Publication date
EP2865492B1 (fr) 2016-06-01
DE102013017647A1 (de) 2015-04-23

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