EP0764502A1 - Appareil manuel de perçage assisté par percussion - Google Patents

Appareil manuel de perçage assisté par percussion Download PDF

Info

Publication number
EP0764502A1
EP0764502A1 EP96810539A EP96810539A EP0764502A1 EP 0764502 A1 EP0764502 A1 EP 0764502A1 EP 96810539 A EP96810539 A EP 96810539A EP 96810539 A EP96810539 A EP 96810539A EP 0764502 A1 EP0764502 A1 EP 0764502A1
Authority
EP
European Patent Office
Prior art keywords
speed
tool holder
measured
reaction torque
evaluation unit
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
EP96810539A
Other languages
German (de)
English (en)
Other versions
EP0764502B1 (fr
Inventor
Otto Noser
Ulrich Bourgund
Alexander Hoop
Hanspeter Schad
Stefan Miescher
Edwin Schweizer
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 EP0764502A1 publication Critical patent/EP0764502A1/fr
Application granted granted Critical
Publication of EP0764502B1 publication Critical patent/EP0764502B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/068—Crank-actuated impulse-driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/195—Regulation means
    • B25D2250/205—Regulation means for torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/221—Sensors

Definitions

  • the invention relates to an impact-supported hand drill, in particular a hammer drill, according to the preamble of the generic claim 1.
  • Impact-supported hand drills are used in the construction industry, in the installation and electrical industry and in related areas. Because of their high mining performance in mineral substrates, such as concrete, masonry or stone, hammer drills have proven their worth for professional use. Hammer drills have a continuously driven tool holder and a motor-operated hammer mechanism. In operation, hammer-like impulses are automatically transmitted to a tool clamped in the tool holder, which support the processing of the surface. At the same time, the tool inserted into the tool holder is continuously rotated in order to create a dowel hole suitable for dowels. In the known hammer drilling machines with a high mining capacity, for example the device series of the applicant, the striking mechanism is an electropneumatic striking mechanism which transmits longitudinal impacts to the tool during operation.
  • the cutting edge on the tool tip With each stroke, the cutting edge on the tool tip is driven into the ground and creates a small notch. Due to the continuous rotation of the tool, the surface is removed by shear.
  • the angle that the cutting edge traverses between two strokes at the tip of the continuously rotated tool is called the conversion angle.
  • the conversion angle In the known hammer drilling devices, the conversion angle is chosen such that a periodic repetition only occurs after a few complete rotations. In this way, it is to be avoided that the cutting edge on the tool tip immediately hits existing notches and deepens them further.
  • the solution to this problem consists in an impact-supported hand drill, in particular a hammer drill, which has the features stated in the characterizing section of patent claim 1.
  • the impact-assisted hand drill according to the invention has a housing in which an electric drive motor for a tool holder which can be rotated continuously about its longitudinal axis, a control device for the number of revolutions of the tool holder which interacts with the electric drive motor and can be activated from the outside via a switch attached to the housing, and a striking mechanism are arranged for the periodic delivery of axial impacts on a tool clamped in the tool holder.
  • the electric drive motor is coupled to a measuring device for the reaction torque.
  • the control device comprises an evaluation unit which is connected to the measuring device for the reaction torque and by means of which the speed of the tool holder can be regulated in such a way that the reaction torque measured on the drive motor during operation is maximum.
  • the impact-assisted hand drilling device Due to the inventive design of the impact-assisted hand drilling device, it can be operated in the optimal performance range. It can be seen that the drilling performance also has a maximum at a maximum measured reaction torque. The device is always operated in the optimum performance range regardless of the surface. No additional operating steps are required by the user.
  • the impact-supported hand drill is used very efficiently due to its operation in the optimal performance range.
  • the optimized drilling performance shortens the time required to create a dowel hole suitable for dowels. This makes the operation of the device even more economical.
  • the measuring device comprises strain gauges or load cells which are arranged on the suspension of the electric drive motor in the housing.
  • the chosen arrangement of the strain gauges or load cells does not require any special design effort. Torque measurement methods using strain gauges or load cells have been tried and tested and carried out with sufficient accuracy under the loads to which impact-assisted hand drills are sometimes exposed.
  • the control device By connecting the evaluation unit to a memory unit, in which different speed ranges are defined, and the control device is designed in such a way that, according to the evaluation unit, these speed ranges can be automatically adjusted according to increasing speeds, the user can find the optimal one after activating the control device Speed with maximum associated reaction torque take place in a very short time.
  • the associated reaction torque is determined for each set speed and recorded in the storage unit.
  • the control device then automatically regulates the speed of the tool holder that corresponds to the greatest value of the measured reaction torques. This regulation is independent of the user. The operator only has to activate the control device once, for example, as before, via a push button on the handle. The control then takes place fully automatically, without any further action on the part of the user. He can only see from the sound of the electric motor that regulation is taking place.
  • the speed ranges defined in the storage unit preferably correspond to conversion angles of 37 ° -39 °, 46 ° -50 °, 61 ° -65 ° and 91 ° -98 °.
  • This relationship serves the approximate determination of the optimal speed ranges or conversion angle.
  • the speed ranges corresponding to the conversion angle ranges are activated and the Speeds varied accordingly.
  • the associated reaction torque on the drive motor is determined for each set speed.
  • the optimal speed at which the impact-supported hand drill is to be operated is regulated by the control device to the speed at which the greatest reaction torque was measured.
  • different ideal speeds are defined in the storage unit.
  • the control device is designed in such a way that, according to the evaluation unit, these ideal speeds can be set automatically and the speed of the tool holder can be varied within a range of ⁇ 5% of the ideal speed.
  • the reaction torque associated with each speed is measured and stored in the storage unit.
  • the speed of the tool holder can then be automatically regulated within a narrow tolerance of ⁇ 1 ° to the speed at which the maximum reaction torque was determined.
  • the ideal speeds therefore correspond to conversion angles of 38 °, 48 °, 63 ° and 95 °, each with a tolerance of ⁇ 1 °, the relationship between the speed and the conversion angle being given in accordance with the relationship given above.
  • approximately speed ranges are specified in which the greatest possible reaction torque is to be expected.
  • the impact frequency which is involved in the relationship between the conversion angle and the rotational speed of the tool holder, is not a constant, in particular in the known hammer drilling machines with electropneumatic impact mechanism, but changes with the rotational speed. However, this does not matter for the approximate determination of the speed ranges.
  • the speed of the tool holder is regulated only as a function of the measured reaction torque, so that the speed-dependent dependence of the impact frequency is also irrelevant in this case.
  • the evaluation unit comprises a microprocessor, which is controlled in such a way that the setting of the speed of the tool holder is periodically monitored during operation in accordance with the measured reaction torques and, if deviations are detected that correspond to speeds outside the specified range limits, a readjustment if necessary is initiated.
  • the method for operating an impact-assisted hand drilling device equipped according to the invention is characterized in that the reaction torque on the drive motor is measured periodically by the measuring device and the measured values are forwarded to the evaluation unit.
  • the speed of the tool holder is regulated via the control device in accordance with the evaluation unit in such a way that the measured reaction torque is at a maximum.
  • the method according to the invention is characterized by its simple control loop, in which essentially only a single control variable is to be considered.
  • the control device After its activation, the control device preferably automatically sets the speed of the tool holder at which the measured reaction torque is expected to be maximum. For this purpose, rotational speed values defined in the storage unit are followed in succession and the associated measured reaction torques are measured and recorded in the storage unit. The control unit finally controls the speed of the tool holder to the optimal speed found and continuously checks whether the control condition is fulfilled, i.e. the measured reaction torque on the drive motor is maximum and adjusts if necessary. This ensures that the impact-supported hand drill is always operated in the optimal performance range.
  • an impact-supported hand drill according to the invention is provided with the reference number 1 as a whole.
  • the hand drill shown schematically on the basis of its functional blocks is, in particular, a hammer drill with an electropneumatic hammer mechanism.
  • the individual mechanical and electrical function blocks are arranged in a housing 2.
  • the mechanical Function blocks include an electric drive motor 3, an electropneumatic striking mechanism 5, a transmission 7 and a tool holder 9, in which a tool 10 is inserted.
  • the force-transmitting coupling of the mechanical function blocks to one another is indicated by double dashes.
  • the electric drive motor 3 is connected to the electropneumatic striking mechanism 5 via a mechanical connection 4. In this way, an exciter piston 51 is driven via an eccentric, which accelerates a flying piston 52, which strikes a striker 53, which continues into the tool holder 9 and transmits the axial impacts to the tool clamped in the tool holder 9.
  • the electric drive motor 3 is connected via a second mechanical connection 6 to a transmission 7, in which the revolutions of the electric motor are translated or reduced in a predetermined ratio.
  • Another mechanical connection 8 transmits the rotary movement of the electric drive 3 or the gear 7 to the tool holder 9, which is thereby rotated continuously about its axis during operation.
  • the continuous rotary movement of the tool holder 9 is transmitted to the clamped tool 10.
  • the hammer drill 1 is started up by means of a switch S on the handle part of the housing 1.
  • the switch S closes and activates the contact to the energy source, which can be an accumulator or the electrical network to which the hammer drill 1 is connected via a supply line (not shown) the control device C for the electric drive motor 3.
  • the control device C With the help of the control device C, the speed of the drive motor 3 or the tool holder 9 coupled to it can be controlled in the known hammer drilling machines 1.
  • the control device C comprises a known phase control.
  • the electric drive motor 3 is coupled to a measuring device 12 for the reaction torque, which acts on the drive motor 3 during operation.
  • the measuring device 12 is preferably formed by strain gauges or load cells which are arranged on the suspension 13, 14 of the electric drive motor 3.
  • strain gauges or load cells are for example from available from Hottinger Baldwin Messtechnik GmbH, D-6100 Darmstadt 1.
  • a suitable strain gauge is described, for example, in company brochure No. G 24.01.7.
  • a load cell with the type designation Z8 is described, among others, which can be used, for example.
  • the control device C comprises an evaluation unit E, which is connected to the measuring device 12 for the reaction torque.
  • the evaluation unit E processes the measured and digitized reaction torques and causes the control device C to regulate the speed of the tool holder 9 in such a way that the reaction torque measured during operation on the electric drive motor 3 is maximum.
  • the evaluation unit E is connected to a memory unit M in which measurement data can be buffered.
  • the storage unit M can also be used to call up control information contained therein, as will be explained in more detail below.
  • the evaluation unit comprises a microprocessor P, which enables a special control sequence, as will be explained.
  • sequence instructions 20-26 and 30-36 two variants of the sequence of the speed control of the tool holder 9 are shown and represented by sequence instructions 20-26 and 30-36, respectively.
  • the control device C By actuating the switch S on the handle part of the housing 1, the control device C is activated (20 or 30).
  • the control device C accesses the control information stored in the storage unit M.
  • the control information states that the greatest reaction torque can be found at defined speed ranges.
  • the control device C controls the speed in succession to these speed ranges and scans them.
  • the associated reaction torque is measured on the electric drive motor 3 (21-23) for each set speed.
  • the measured and digitized measured values are stored in the storage unit and then compared with one another.
  • the maximum reaction torque is determined by comparing the measured reaction torques and the associated speed of the tool holder 9 is determined (24). Thereafter, the control device C sets the speed determined by the evaluation unit E (25) and controls it in such a way that the measured reaction torque remains at a maximum (26).
  • the control information in the memory unit M is selected such that the speed ranges to be set correspond to conversion angles of 37 ° -39 °, 46 ° -50 °, 61 ° -65 ° and 91 ° -98 °.
  • the control device C takes the control information from the storage unit M that different ideal speeds are to be set in succession. Each ideal speed is varied in a range of ⁇ 5% and for each set speed the associated reaction torque is measured on the electric drive motor 3, digitized and temporarily stored in the memory unit M (31-33). As with the previously described variant of the invention, the measured reaction torques are then compared, the maximum value is determined and the associated speed (34) is determined. The control device C sets the determined speed (35) and controls it in such a way that the measured reaction torque remains at a maximum (36).
  • the control information in the memory unit M is selected such that the ideal rotational speeds to be set correspond to conversion angles of 38 °, 48 °, 63 ° and 95 ° with a tolerance of ⁇ 1 ° in each case.
  • the speed of the tool holder and the stroke frequency are decoupled, so that an exact determination is possible.
  • the inventive Device 1 regulates the speed of the tool holder 9 only as a function of the reaction torque measured on the drive motor 3, so that the speed dependence of the impact frequency is also irrelevant in this case.
  • the reaction torques are measured in speed steps of 2 [rpm].
  • the microprocessor P arranged in the evaluation unit E advantageously runs in a controlled manner in such a way that the setting of the speed of the tool holder 9 is periodically monitored during operation in accordance with the measured reaction torques and, if detected, deviations which correspond to speeds outside the specified speed range limits may be one Readjustment is initiated.
  • the reaction torques on the electric drive motor are recorded approximately 600 to approximately 6000 times per minute.
  • the impact-assisted hand drilling device Due to the inventive design of the impact-assisted hand drilling device, it can be operated in the optimal performance range. It can be seen that the drilling performance also has a maximum at a maximum measured reaction torque. The device is always operated in the optimum performance range regardless of the surface. The impact-supported hand drill is used very efficiently due to its operation in the optimal performance range. The optimized drilling performance shortens the time required to create a dowel hole suitable for dowels. This makes the operation of the device even more economical.
  • the control device By connecting the evaluation unit to a memory unit, in which different speed ranges or ideal speeds are defined, and the control device is designed in such a way that, according to the evaluation unit, these speed ranges can be automatically set and varied according to increasing speeds, after the control device has been activated by Users can find the optimal speed with the maximum associated reaction torque in a very short time.
  • the optimal speed is controlled independently of the user. The operator only has to activate the control device once, for example, as before, via a push button on the handle. The control then takes place fully automatically, without any further action on the part of the user. At most, he can see from the changing noise of the electric motor that regulation is taking place at all.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
EP96810539A 1995-09-20 1996-08-13 Appareil manuel de perçage assisté par percussion Expired - Lifetime EP0764502B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534850 1995-09-20
DE19534850A DE19534850A1 (de) 1995-09-20 1995-09-20 Schlagunterstütztes Handbohrgerät

Publications (2)

Publication Number Publication Date
EP0764502A1 true EP0764502A1 (fr) 1997-03-26
EP0764502B1 EP0764502B1 (fr) 2001-03-28

Family

ID=7772639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810539A Expired - Lifetime EP0764502B1 (fr) 1995-09-20 1996-08-13 Appareil manuel de perçage assisté par percussion

Country Status (5)

Country Link
US (1) US6044918A (fr)
EP (1) EP0764502B1 (fr)
JP (1) JPH09108919A (fr)
CN (1) CN1076237C (fr)
DE (2) DE19534850A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961586A1 (de) * 1999-12-21 2001-07-05 Bosch Gmbh Robert Schlagunterstützte Handbohrmaschine
EP1281484A1 (fr) * 2001-07-30 2003-02-05 HILTI Aktiengesellschaft Outil électrique à percussion
EP3181302A1 (fr) * 2015-12-14 2017-06-21 HILTI Aktiengesellschaft Machine-outil portative

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6536536B1 (en) * 1999-04-29 2003-03-25 Stephen F. Gass Power tools
DE10021356A1 (de) * 2000-05-02 2001-11-08 Hilti Ag Drehendes Elektrohandwerkzeuggerät mit Sicherheitsroutine
DE10033362A1 (de) * 2000-07-08 2002-01-17 Hilti Ag Elektrohandwerkzeug mit Leerschlagabschaltung
DE10034359A1 (de) * 2000-07-14 2002-01-24 Hilti Ag Schlagendes Elektrohandwerkzeuggerät
DE10101708B4 (de) * 2001-01-15 2006-02-09 Tracto-Technik Gmbh Verfahren zum Felsmeißeln
DE10117121A1 (de) * 2001-04-06 2002-10-17 Bosch Gmbh Robert Handwerkzeugmaschine
DE10136515C2 (de) * 2001-07-26 2003-10-23 Wacker Construction Equipment Bohr- und/oder Schlaghammer mit Handgriff
DE10160864A1 (de) * 2001-12-12 2003-06-26 Hilti Ag Axial schlagendes Elektrohandwerkzeuggerät
US20050087352A1 (en) * 2002-07-04 2005-04-28 Atlas Copco Electric Tools Gmbh Portable Tool
JP4270887B2 (ja) * 2003-01-10 2009-06-03 株式会社マキタ 電動往復動式工具
DE10309012B3 (de) * 2003-03-01 2004-08-12 Hilti Ag Steuerverfahren einer axial schlagenden und drehenden Elektrohandwerkzeugmaschine
DE10316844A1 (de) * 2003-04-11 2004-11-04 Hilti Ag Steuerung einer Elektrohandwerkzeugmaschine
US7395871B2 (en) * 2003-04-24 2008-07-08 Black & Decker Inc. Method for detecting a bit jam condition using a freely rotatable inertial mass
US7140450B2 (en) * 2004-10-18 2006-11-28 Battelle Energy Alliance, Llc Percussion tool
US7410006B2 (en) * 2004-10-20 2008-08-12 Black & Decker Inc. Power tool anti-kickback system with rotational rate sensor
US7552781B2 (en) * 2004-10-20 2009-06-30 Black & Decker Inc. Power tool anti-kickback system with rotational rate sensor
BE1016957A6 (fr) * 2006-03-27 2007-10-02 Sonaca Sociutu Anonyme Dispositif et procede pour l'assemblage par rivetage de toles.
JP4867464B2 (ja) * 2006-05-10 2012-02-01 マックス株式会社 ドリル
US8316958B2 (en) * 2006-07-13 2012-11-27 Black & Decker Inc. Control scheme for detecting and preventing torque conditions in a power tool
KR100822816B1 (ko) * 2006-09-05 2008-04-18 김금균 전기오거 인버터 컨트롤 팩
JP5050667B2 (ja) * 2007-06-05 2012-10-17 マックス株式会社 打撃工具
US20090065225A1 (en) * 2007-09-07 2009-03-12 Black & Decker Inc. Switchable anti-lock control
US8690497B2 (en) * 2008-10-30 2014-04-08 Black & Decker Inc. Handle and attachments for right angle drill
US9475180B2 (en) 2010-01-07 2016-10-25 Black & Decker Inc. Power tool having rotary input control
US8418778B2 (en) 2010-01-07 2013-04-16 Black & Decker Inc. Power screwdriver having rotary input control
AU2011204260A1 (en) 2010-01-07 2012-06-07 Black & Decker Inc. Power screwdriver having rotary input control
US9266178B2 (en) 2010-01-07 2016-02-23 Black & Decker Inc. Power tool having rotary input control
DE102010043032A1 (de) * 2010-10-28 2012-05-03 Hilti Aktiengesellschaft Steuerungsverfahren für eine Werkzeugmaschine und eine Werkzeugmaschine
EP2631035B1 (fr) 2012-02-24 2019-10-16 Black & Decker Inc. Outil électrique
DE102012206761A1 (de) * 2012-04-25 2013-10-31 Hilti Aktiengesellschaft Handgeführtes Arbeitsgerät und Verfahren zum Betreiben eines handgeführten Arbeitsgeräts
DE102012208913A1 (de) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Schlagwerkeinheit
DE102012208855A1 (de) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Handwerkzeugmaschine
EP2919689B1 (fr) 2012-11-14 2018-06-13 British Columbia Cancer Agency Branch Accessoire de marteau perforateur tubulaire
DE102013212626A1 (de) * 2013-06-28 2014-12-31 Robert Bosch Gmbh Handwerkzeugmaschinenvorrichtung
CN104752075A (zh) * 2014-06-19 2015-07-01 国网辽宁省电力有限公司丹东供电公司 手持式变压器有载分接开关转动装置
EP3023200A1 (fr) * 2014-11-20 2016-05-25 HILTI Aktiengesellschaft Procédé de commande d'une perceuse
EP4029652A1 (fr) * 2015-06-02 2022-07-20 Milwaukee Electric Tool Corporation Outil électrique à vitesses multiples avec embrayage électronique
US10589413B2 (en) 2016-06-20 2020-03-17 Black & Decker Inc. Power tool with anti-kickback control system
DE102016210937A1 (de) * 2016-06-20 2017-12-21 Robert Bosch Gmbh Handwerkzeugmaschine
US20180193993A1 (en) * 2017-01-09 2018-07-12 Tricord Solutions, Inc. Compact Impacting Apparatus
US11541523B2 (en) * 2018-05-25 2023-01-03 Koki Holdings Co., Ltd. Drilling tool
DE102018124402A1 (de) * 2018-10-02 2020-04-02 DSM Meßtechnik GmbH Elektronisches Schraubwerkzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1912440U (de) * 1965-01-13 1965-03-18 Metabowerke Kg Schlagbohrmaschine.
DE1992941U (de) * 1968-03-19 1968-08-29 Fein C & E Elektromotorisch angetriebene, schutzisolierte schlagbohrmaschine.
EP0107629A1 (fr) * 1982-09-22 1984-05-02 Institut Cerac S.A. Machine-marteau commandée électriquement
GB2160320A (en) * 1984-06-12 1985-12-18 Tampella Oy Ab Optimizing percussive drilling
EP0203282A1 (fr) * 1985-05-25 1986-12-03 Ing. G. Klemm Bohrtechnik GmbH Réglage d'un dispositif hydraulique de perforation à percussion
US4660656A (en) * 1985-11-22 1987-04-28 Amoco Corporation Method and apparatus for controlling the rotational torque of a drill bit

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1912440A1 (de) * 1969-03-12 1970-09-17 Toussaint & Hess Gmbh Axialkolbenmaschine
US4165789A (en) * 1978-06-29 1979-08-28 United States Steel Corporation Drilling optimization searching and control apparatus
US4316512A (en) * 1979-04-04 1982-02-23 Sps Technologies, Inc. Impact wrench
CH643092A5 (de) * 1980-02-18 1984-05-15 Gruenbaum Heinrich Leuzinger Vorrichtung zum messen des von einem elektromotor ausgeuebten drehmomentes.
DE3142682C2 (de) * 1981-10-28 1986-06-19 Black & Decker, Inc. (Eine Gesellschaft N.D.Ges.D. Staates Delaware), Newark, Del. Elektrowerkzeug, insbesondere Handwerkzeug
DE3146494C2 (de) * 1981-11-24 1986-10-30 Black & Decker, Inc. (Eine Gesellschaft N.D.Ges.D. Staates Delaware), Newark, Del. Elektrowerkzeug, insbesondere Handwerkzeug, mit Drehmomentüberwachung
US4540318A (en) * 1982-07-29 1985-09-10 Robert Bosch, Gmbh Rotary electrical tool with speed control, especially drill
DE3310145C2 (de) * 1983-03-21 1993-10-21 Hilti Ag Elektropneumatischer Bohrhammer mit austauschbarem Schlagwerk
US4613800A (en) * 1984-09-21 1986-09-23 The Boeing Company Servo system for measuring and controlling the amount of torque being applied to rotating tools and method
US4745557A (en) * 1986-02-13 1988-05-17 Ltv Aerospace & Defense Company Machine tool control system
DE3637128A1 (de) * 1986-10-31 1988-05-05 Hilti Ag Einrichtung zur automatischen werkzeugspezifischen betriebsdateneinstellung eines elektrischen antriebsgeraets fuer auswechselbare werkzeuge
JPH01281807A (ja) * 1988-04-28 1989-11-13 Fuji Heavy Ind Ltd ドリルの制御方法
US4854786A (en) * 1988-05-26 1989-08-08 Allen-Bradley Company, Inc. Computer controlled automatic shift drill
US5014793A (en) * 1989-04-10 1991-05-14 Measurement Specialties, Inc. Variable speed DC motor controller apparatus particularly adapted for control of portable-power tools
US5172774A (en) * 1991-04-12 1992-12-22 Ingersoll-Rand Company Axially compact torque transducer
JP3452373B2 (ja) * 1992-12-18 2003-09-29 松下電器産業株式会社 ねじ締め装置、およびねじ締め方法
GB9320181D0 (en) * 1993-09-30 1993-11-17 Black & Decker Inc Improvements in and relating to power tools
DE4340727C2 (de) * 1993-11-30 1996-02-15 Bosch Gmbh Robert Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen
DE4344817C2 (de) * 1993-12-28 1995-11-16 Hilti Ag Verfahren und Einrichtung für handgeführte Werkzeugmaschinen zur Vermeidung von Unfällen durch Werkzeugblockieren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1912440U (de) * 1965-01-13 1965-03-18 Metabowerke Kg Schlagbohrmaschine.
DE1992941U (de) * 1968-03-19 1968-08-29 Fein C & E Elektromotorisch angetriebene, schutzisolierte schlagbohrmaschine.
EP0107629A1 (fr) * 1982-09-22 1984-05-02 Institut Cerac S.A. Machine-marteau commandée électriquement
GB2160320A (en) * 1984-06-12 1985-12-18 Tampella Oy Ab Optimizing percussive drilling
EP0203282A1 (fr) * 1985-05-25 1986-12-03 Ing. G. Klemm Bohrtechnik GmbH Réglage d'un dispositif hydraulique de perforation à percussion
US4660656A (en) * 1985-11-22 1987-04-28 Amoco Corporation Method and apparatus for controlling the rotational torque of a drill bit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961586A1 (de) * 1999-12-21 2001-07-05 Bosch Gmbh Robert Schlagunterstützte Handbohrmaschine
EP1281484A1 (fr) * 2001-07-30 2003-02-05 HILTI Aktiengesellschaft Outil électrique à percussion
US6651860B2 (en) 2001-07-30 2003-11-25 Hilti Aktiengesellschaft Percussive striking electric tool device
EP3181302A1 (fr) * 2015-12-14 2017-06-21 HILTI Aktiengesellschaft Machine-outil portative

Also Published As

Publication number Publication date
EP0764502B1 (fr) 2001-03-28
DE59606658D1 (de) 2001-05-03
DE19534850A1 (de) 1997-03-27
US6044918A (en) 2000-04-04
CN1076237C (zh) 2001-12-19
CN1149517A (zh) 1997-05-14
JPH09108919A (ja) 1997-04-28

Similar Documents

Publication Publication Date Title
EP0764502B1 (fr) Appareil manuel de perçage assisté par percussion
DE112006001421B4 (de) Arbeitsmaschine
DE60214758T2 (de) Verfahren und einrichtung zur steuerung des betriebs einer gesteinsbohrvorrichtung
DE60219186T2 (de) Verfahren und anordnung zur steuerung von schlagbohren auf grundlage des aus der gemessenen vorschubrate ermittelten belastungsgrads
DE102004017939A1 (de) Geführte Werkzeugmaschine sowie Verfahren zum Betreiben einer geführten Werkzeugmaschine
WO2016173941A1 (fr) Génération adaptative de paramètres de forage lors d'une opération de carottage automatisé
DE102013205827A1 (de) Vorschubeinrichtung
EP0733442A1 (fr) Marteau perforateur pour béton armé et adaptateur pour un marteau perforateur
EP0733443A1 (fr) Dispositif pour transmettre des coups par impulsion sur un outil à rotation continue
EP4001510B1 (fr) Dispositif de génération des impulsions à choc ou des vibrations pour une machine de construction
EP3022027B1 (fr) Methode de controle d'une machine-outil
EP3288485A1 (fr) Identification intelligente de surface et début d'opération de carottage
WO2016173940A1 (fr) Identification intelligente de fin de carottage
EP2434053A2 (fr) Vibrocompacteur destiné à étanchéifier un sous-sol
EP3533932B1 (fr) Procédé et système permettant d'ériger un élément de fondation dans le sol
EP2132005B1 (fr) Mécanisme rotopercutant
DE112019005777T5 (de) Drehwerkzeug
EP4377049A1 (fr) Procédé de commande en boucle ouverte et en boucle fermée d'une machine-outil
EP3822031A1 (fr) Procédé de commande et de régulation d'une machine-outil
EP3756823A1 (fr) Procédé de détection d'un état d'une machine-outil ainsi que machine-outil
DE2734111B2 (de) Drehschlagbohrverfahren mit Wechsel der Drehrichtung des Bohrgestänges
DE102004001548A1 (de) Vorrichtung mit einer Schwingungsisoliereinrichtung
EP4058247A1 (fr) Procédé de commande et de régulation d'une machine-outil et poignée pour machine-outil
EP2921263A1 (fr) Reconnaissance de comportement au choc en fonction de la charge
EP3852978A1 (fr) Machine-outil portative et procédé pour faire fonctionner une machine-outil portative

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB LI NL SE

17P Request for examination filed

Effective date: 19970926

17Q First examination report despatched

Effective date: 19991208

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB LI NL SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59606658

Country of ref document: DE

Date of ref document: 20010503

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010601

ET Fr: translation filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20040803

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050809

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050810

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20050815

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20060301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060813

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060813

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080807

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090814

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20150804

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59606658

Country of ref document: DE