EP0092736B1 - Messwertgeber für Drehmoment- und/oder Drehwinkelmessung, insbesondere an motorgetriebenen Schraubern - Google Patents

Messwertgeber für Drehmoment- und/oder Drehwinkelmessung, insbesondere an motorgetriebenen Schraubern Download PDF

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Publication number
EP0092736B1
EP0092736B1 EP83103552A EP83103552A EP0092736B1 EP 0092736 B1 EP0092736 B1 EP 0092736B1 EP 83103552 A EP83103552 A EP 83103552A EP 83103552 A EP83103552 A EP 83103552A EP 0092736 B1 EP0092736 B1 EP 0092736B1
Authority
EP
European Patent Office
Prior art keywords
housing
measuring sensor
sensor according
sub
torsion shaft
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.)
Expired
Application number
EP83103552A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0092736A1 (de
Inventor
Alfred Hettich
Wolfgang Raidt
Karl Roll
Wilhelm W. Schwarze
Reinhold Stroezel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0092736A1 publication Critical patent/EP0092736A1/de
Application granted granted Critical
Publication of EP0092736B1 publication Critical patent/EP0092736B1/de
Expired legal-status Critical Current

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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
    • B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers
    • B25B23/1456—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers having electrical components
    • 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 is based on a transmitter according to the preamble of the main claim.
  • a sensor is already known from DE-OS 29 51 148. There, however, the question of installing such a sensor in a transmission or a machine housing is not addressed. In particular, when using such sensors for motor-driven screwdrivers, problems arose for a construction which was favorable in terms of production technology and thus economically. The difficulties already encountered with other sensors when trying to transmit the electrical signals from the sensor without interference to suitable display means still exist here.
  • the transducer according to the invention with the characterizing features of the main claim has the advantage that it can be easily inserted into the housing of a machine or a transmission or attached to this housing without the basic structure of the machine or the gear must be changed.
  • the measures listed in the subclaims are advantageous developments and improvements of the transmitter specified in the main claim. possible.
  • the selected design with two slotted sleeves that overlap the torsion area of a torsion shaft enables a space-saving design.
  • Motor-operated screwdrivers, especially designed as hand tools, remain slim and handy despite being equipped with the sensor.
  • the simple solution for the interference-free transmission of the electrical signals shown by the invention has the additional advantage that the tube serving to guide the cable and protect the cable is also used as a hand protection.
  • the construction of the transmitter as a module allows the length tolerances to be coordinated within this module, which largely eliminates measurement errors due to axial displacement of the system. In the case of an arrangement mounted on both sides, influences due to axial displacement are completely excluded.
  • Figure 1 shows a first embodiment of an angle screwdriver with an inserted transducer in longitudinal section
  • Figure 2 shows a second embodiment of the screwdriver with attached transducer in longitudinal section
  • Figure 3 shows a side view of the inner
  • Figure 4 shows a side view of the outer of two slotted sleeves, in both embodiments are the same.
  • an angle screwdriver 1 is supplemented with a sensor module 2.
  • a planetary gear 4 is arranged in the gear housing 3 of the angle screwdriver 1.
  • a sleeve 5 with an internal toothing 6 forms the end member of this planetary gear 4.
  • the sleeve 5 is supported by a ball bearing 7 in the gear housing 3.
  • the internal toothing 6 can accommodate the toothed end 8 of a torsion shaft 9.
  • the other end of this torsion shaft 9 has a cylindrical head 10 with an internal toothing 11.
  • the internal toothing 11 is the same as the internal toothing 6 in the sleeve 5.
  • a cylindrical extension 12 of the torsion shaft 9 receives a slotted sleeve 13.
  • the sleeve 13 is glued to the cylindrical extension so that the part of the sleeve 13 with slots 14 engages over the area 15 of the torsion shaft 9 provided for torsion.
  • a sleeve 16 slotted in the same way as the sleeve 13 is glued onto the head 10 of the torsion shaft 9 in such a way that its part with slots 17 engages over the part of the sleeve 13 with the slots 14.
  • the webs between the slots 17 cover the slots 14.
  • the slot sleeve 16 is in turn surrounded in the area of its slots 17 by a sleeve 18 which carries a winding 19.
  • the coil former formed from this sleeve 18 and the winding 19 is glued into the cylindrical interior of a module housing 21.
  • the module housing 21 has an outlet connection 22 for a cable 23. Wire ends 24 and 25 from this cable 23 are with the winding 19 on the sleeve 18 connected.
  • the outlet connector 22 has a receiving bore 26 for a tube 27. A screw 28 in a threaded bore in the outlet connector 22 serves to clamp the tube 27 in the receiving bore 26.
  • the cable 23 is passed through the tube 27 into a sleeve 29.
  • the sleeve 29 is attached by means of a tab 30 to the end of a machine housing 31.
  • the sleeve 29 receives a socket 32, which serves as a connector for a continuing cable.
  • the cable ends 33 and 34 on this side are connected to corresponding contact sleeves 35 and 36 of the socket 32.
  • the pipe 27 is additionally supported with a clamp holder 37 between the outlet connection 22 and the sleeve 29.
  • the pipe section between the clamp holder 37 and the sleeve 29 overlaps the area 38 of the machine housing 31 designed as a handle for the operator, in which an operating handle 39 is also arranged. This part of the tube 27 thus becomes hand protection for the operator.
  • the gear housing 3 and the assembly housing 21 are connected to the outside of the gear housing 3 via a coupling toothing 40, 41 and a threaded connection spanning these with a threaded sleeve 42, a locking ring 43 and a thread 44.
  • the same connection with coupling toothing 40/41, threaded sleeve 42, locking ring 43 and an external thread 44 - here at the end of the module housing 21 - is established between the module housing 21 and a spindle housing 45 of the angle screwdriver 1.
  • the spindle housing 45 is supported by means of a roller bearing 46 and one Axial bearing 47 a spindle 48.
  • the axial bearing 49 is held in the spindle housing 45 by means of a nut 49.
  • a toothed pin 50 of the spindle 48 engages in the internal toothing 11.
  • the other end of the spindle 48 is connected to an output member 51 of the angle screwdriver 1 via a gear mechanism (not shown).
  • a square pin 52 of the output member 51 comes out and can hold any screwing tool.
  • the slotted sleeves 13 and 16 are again shown separately in FIGS. 3 and 4 in order to better show the arrangement of the slots 14 and 17.
  • a connecting nut 53 is used to connect an air hose. Compressed air is supplied via it to an air motor (not shown) in the machine housing 31.
  • the same slotted sleeves 13 and 16 and the same sleeve 18 with the winding 19 are used.
  • a torsion shaft 54 is used, which is both the output member and the spindle and has a square pin 55.
  • An internal hexagon 57 is machined into a head 56 of this torsion shaft 54.
  • a hexagon pin of a gear end member of a screwdriver, not shown here, can engage in this hexagon socket.
  • the slotted sleeves 13 and 16 are glued to the torsion shaft 54 in the same way as with the torsion shaft 9.
  • a ball bearing 58 supports the torsion shaft 54 with the slotted sleeve 13 in a module housing 59.
  • the module housing is sealed towards the screwdriver by sealing means 60 to 62, which are inserted into a recess 63 in the module housing 59 and are located on the circumference of the head 56 of the torsion shaft 54 invest.
  • a radial bore 64 in the module housing 59 serves as a passage for a cable 65.
  • This cable 65 is clamped on the outside of the module housing 59 by a screw 66 and a clamp 67.
  • the wire ends 68 and 69 from the cable 65 are connected to the single-layer winding 19.
  • the other end of the cable 65 leads to a plug coupling 70, via which the signals transmitted via the cable are forwarded in a known manner to the measuring devices.
  • This transducer with the module housing 59 can be connected to the machine housing or the gear housing of a screwdriver via a threaded attachment 71. It serves as a resolution here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
EP83103552A 1982-04-22 1983-04-13 Messwertgeber für Drehmoment- und/oder Drehwinkelmessung, insbesondere an motorgetriebenen Schraubern Expired EP0092736B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823214889 DE3214889A1 (de) 1982-04-22 1982-04-22 Messwertgeber fuer drehmoment- und/oder drehwinkelmessung, insbesondere an motorgetriebenen schraubern
DE3214889 1982-04-22

Publications (2)

Publication Number Publication Date
EP0092736A1 EP0092736A1 (de) 1983-11-02
EP0092736B1 true EP0092736B1 (de) 1985-08-07

Family

ID=6161579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103552A Expired EP0092736B1 (de) 1982-04-22 1983-04-13 Messwertgeber für Drehmoment- und/oder Drehwinkelmessung, insbesondere an motorgetriebenen Schraubern

Country Status (4)

Country Link
US (1) US4485682A (cs)
EP (1) EP0092736B1 (cs)
JP (1) JPS58196977A (cs)
DE (2) DE3214889A1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29612693U1 (de) * 1996-07-23 1996-09-19 Wagner, Paul-Heinz, 53804 Much Schraubgerät

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DE3344385A1 (de) * 1983-12-08 1985-06-20 Robert Bosch Gmbh, 7000 Stuttgart Beruehrungsfreie messvorrichtung fuer drehmoment und/oder drehwinkel
DE3443670A1 (de) * 1984-11-30 1986-06-05 C. & E. Fein Gmbh & Co, 7000 Stuttgart Kraftgetriebene schraubvorrichtung mit variabler drehmomenteinstellung
US4712432A (en) * 1984-11-30 1987-12-15 Al Sin Seiki Kabushiki Kaisha Torque sensor
JPS61247932A (ja) * 1985-04-26 1986-11-05 Matsushita Electric Ind Co Ltd トルクセンサ
US4712433A (en) * 1985-10-18 1987-12-15 Aisin Seiki Kabushiki Kaisha Torque sensor for automotive power steering systems
USD298908S (en) 1985-11-18 1988-12-13 The Rotor Tool Company Power tool with torque indicating ring
DE3714150A1 (de) * 1987-04-28 1988-11-17 Stabil Elektronik Gmbh Vorrichtung zum messen der lastabhaengigen torsion einer rotierenden welle
US4759225A (en) * 1987-06-01 1988-07-26 Ryeson Corporation Torque tool and torque tool analyzer
US4982612A (en) * 1988-10-03 1991-01-08 Snap-On Tools Corporation Torque wrench with measurements independent of hand-hold position
DE3922860A1 (de) * 1989-07-12 1991-01-17 Bosch Gmbh Robert Messeinrichtung zur bestimmung des drehmoments
DE4243069C2 (de) * 1992-12-18 2001-09-27 Gardner Denver Gmbh Impulswerkzeug, insbesondere Impulsschrauber
DE4329200C2 (de) * 1993-08-31 2001-08-23 Bosch Gmbh Robert Motorgetriebener Schrauber
DE4329199C2 (de) * 1993-08-31 1996-01-11 Bosch Gmbh Robert Meßeinrichtung zur Erfassung eines Drehmoments, insbesondere zur Verwendung bei motorgetriebenen Schraubern
SE503326C2 (sv) * 1994-07-08 1996-05-28 Atlas Copco Tools Ab Vinkelmutterdragare
DE4429282A1 (de) * 1994-08-18 1996-02-22 Cooper Ind Inc Hydro-Impulsschrauber insbesondere zum Anziehen von Schraubverbindungen
DE19604489C2 (de) * 1996-02-08 2000-03-23 Heidenhain Gmbh Dr Johannes Elektrische Positionsmeßeinrichtung
DE29607207U1 (de) * 1996-04-20 1997-08-21 Wagner, Paul-Heinz, 53804 Much Hydraulischer Kraftschrauber
SE509494C2 (sv) * 1996-11-19 1999-02-01 Atlas Copco Tools Ab Kraftmutterdragare med momentgivare
US6463824B1 (en) * 2000-02-29 2002-10-15 S-B Power Tool Company Right angle attachment for power hand tool
US6523442B2 (en) * 2000-12-07 2003-02-25 Acradyne Inc. Torque tool assembly
DE10154737C1 (de) * 2001-11-09 2003-04-24 Walterscheid Gmbh Gkn Vorrichtung zum Messen von Drehmomenten und der Drehrichtung in einer Antriebsanordnung
SE524192C2 (sv) * 2002-06-03 2004-07-06 Bo Tillander Verktygshållare
DE102006025703B4 (de) * 2005-06-01 2019-11-14 Milwaukee Electric Tool Corp. Kraftwerkzeug, Antriebsanordnung und Betriebsverfahren davon
IT1391943B1 (it) * 2008-11-14 2012-02-02 Atlas Copco Blm Srl Dispositivo perfezionato ad elementi sostituibili per la taratura di avvitatori
US9212725B2 (en) * 2011-03-31 2015-12-15 Ingersoll-Rand Company Ring gears configured to encase in-line torque transducers for power tools
US10427277B2 (en) 2011-04-05 2019-10-01 Ingersoll-Rand Company Impact wrench having dynamically tuned drive components and method thereof
DK2800959T3 (da) * 2011-09-02 2019-08-19 Provost Dan Enhed, der er indskudt mellem et momentværktøj og et fastgørelseselement, til måling af momenter og spændingsvinkler
FR2983107B1 (fr) * 2011-11-25 2014-12-05 Renault Georges Ets Visseuse electrique de type broche destinee a etre fixee sur un bati.
CN104827435B (zh) * 2012-04-11 2016-06-22 国网山东省电力公司龙口市供电公司 一种用于电力行业的气动扳手的定扭力装置
US9193055B2 (en) 2012-04-13 2015-11-24 Black & Decker Inc. Electronic clutch for power tool
KR200490007Y1 (ko) 2015-04-28 2019-11-04 밀워키 일렉트릭 툴 코포레이션 정밀 토크 스크류드라이버
US10357871B2 (en) 2015-04-28 2019-07-23 Milwaukee Electric Tool Corporation Precision torque screwdriver
CN107081707A (zh) * 2017-05-11 2017-08-22 山东帝伯教育科技有限公司 一种用于定扭力的扭力环
SE542008C2 (en) * 2018-04-26 2020-02-11 Atlas Copco Ind Technique Ab Electric power tool for tightening screw joints
EP4192657A4 (en) 2020-08-10 2024-11-13 Milwaukee Electric Tool Corporation POWERED SCREWDRIVER WITH CLUTCH ADJUSTMENT SENSOR
CN115592602B (zh) * 2022-09-15 2025-03-21 鸿富锦精密电子（成都）有限公司 防护装置

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE2951148A1 (de) * 1979-12-19 1981-07-09 Robert Bosch Gmbh, 7000 Stuttgart Messeinrichtung fuer einen drehwinkel und/oder ein drehoment

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GB790692A (en) * 1955-05-12 1958-02-12 Marconi Wireless Telegraph Co Improvements in or relating to torque meters
US3729991A (en) * 1971-05-17 1973-05-01 Spearhead Inc Capacitive displacement transducer
JPS4956298A (cs) * 1972-09-30 1974-05-31
US3823608A (en) * 1972-10-25 1974-07-16 Southern Gas Ass Torque transducer
US3858444A (en) * 1973-02-09 1975-01-07 Chicago Pneumatic Tool Co Angle nut runner with integral torque transducer means of obtaining value of delivered torque
US3920082A (en) * 1973-05-14 1975-11-18 Thor Power Tool Co Power tool with torque sensing control means
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DE3018938A1 (de) * 1980-05-17 1981-11-26 Robert Bosch Gmbh, 7000 Stuttgart Handwerkzeugmaschine
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Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951148A1 (de) * 1979-12-19 1981-07-09 Robert Bosch Gmbh, 7000 Stuttgart Messeinrichtung fuer einen drehwinkel und/oder ein drehoment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29612693U1 (de) * 1996-07-23 1996-09-19 Wagner, Paul-Heinz, 53804 Much Schraubgerät

Also Published As

Publication number Publication date
JPS58196977A (ja) 1983-11-16
US4485682A (en) 1984-12-04
DE3360511D1 (en) 1985-09-12
EP0092736A1 (de) 1983-11-02
DE3214889A1 (de) 1983-10-27
JPH0525638B2 (cs) 1993-04-13

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