EP0729808B1 - Schraubvorrichtung mit Messeinrichtung - Google Patents

Schraubvorrichtung mit Messeinrichtung Download PDF

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Publication number
EP0729808B1
EP0729808B1 EP96101875A EP96101875A EP0729808B1 EP 0729808 B1 EP0729808 B1 EP 0729808B1 EP 96101875 A EP96101875 A EP 96101875A EP 96101875 A EP96101875 A EP 96101875A EP 0729808 B1 EP0729808 B1 EP 0729808B1
Authority
EP
European Patent Office
Prior art keywords
screwing
screwing tool
screw
rotary drive
drive 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 - Lifetime
Application number
EP96101875A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0729808A1 (de
Inventor
Michael Dipl.-Ing. Habele (Fh)
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 EP0729808A1 publication Critical patent/EP0729808A1/de
Application granted granted Critical
Publication of EP0729808B1 publication Critical patent/EP0729808B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means

Definitions

  • the invention relates to a screw device according to the Preamble of claim 1. It is one of those Known screwing device in which a Screwdriver in the circumferential direction and axially fixed with a Rotary drive shaft of the screw device is connected.
  • a Measurement of the preload in the screw connection after Ultrasonic wave transit time method is with this Screwing device only when positioned precisely on the Screw connection of attached screw tool possible because only then secure contacting of the screw connection via contacting means. Before the measurement process the screwdriver therefore always completely on the Screw connection to be plugged in, which is very cumbersome is.
  • the screwing device according to the invention with the characteristic features of claim 1 has in contrast the advantage that a measurement of the pretensioning force is also possible is guaranteed if the edges of screwing tools and screw connection do not exactly cover and therefore that Screwing tool not completely on the screw connection is attachable. It is irrelevant whether that Screwing tool for internal intervention (e.g. Allen key) or External intervention (e.g. external hexagon). It is reliable contacting of the measuring device in any case guaranteed.
  • the contact means are in front Damage protected.
  • FIG. 1 shows a longitudinal section through a Screwing device according to a first embodiment
  • FIG. 2 shows a cross section along line II-II in FIG. 1
  • Figure 3 shows a longitudinal section through a screw device according to a second embodiment
  • Figure 4 a View of a holding disc
  • Figure 5 is a view of a Screwing tool
  • Figure 6 is a partial view of the Screwing device according to arrow VI in FIG. 3
  • FIG. 7 a cross section along line VII-VII in Figure 3.
  • FIG 1 with 10 is a front, the tool side Part of a screwing device.
  • the Screwing device 10 has a rotary drive shaft 11, which by means of a not shown Drive motor is driven to rotate.
  • On in Figure 1 illustrated end of the rotary drive shaft 11 is one Tool holder 12 provided for a screwing tool 13, which is used to tighten a screw connection.
  • the screw connection is only a screw 14 shown as an example.
  • the screw device 10 can however also attached to a nut of the screw connection will.
  • the screwing tool 13 is on its screw 14 facing end 15 offset and with an external hexagon provided for internal engagement in a corresponding, hexagonal receiving opening 16 in a head 14a Screw 14 is formed.
  • the screw 14 is on its head 14a with a Vibrating body 19, e.g. a piezo crystal, which with appropriate electrical excitation high-frequency generates acoustic vibrations and into the screw connection directs.
  • a Vibrating body 19 receives Echo vibrations from the screw connection and converts them into associated echo signals.
  • evaluation device 18 can in a known manner to the state of tension in the screw connection and thus the current preload can be concluded.
  • the Vibrating body 19 is, for example, central in the Receiving opening 16 arranged on a base surface 17.
  • the contacting means 20 comprise a transmission element 21, which is predominantly in the rotary drive shaft 11 axially in an axial bore 22 extends.
  • the transmission element 21 is on his end of the screwing tool in two parts with one axial telescopically movable, with spring force in the direction of the screw 14 acted upon contact pin 23 is formed.
  • the transmission element 21 is for receiving the Contact pin 23 is shaped correspondingly hollow cylindrical.
  • a Stop not shown in Figure 1 prevents the Contact pin 23 by the spring force from the Transmission element 21 is pushed out.
  • Figure 1 is the contact pin 23 in his stop position on the screwing tool side. At the free The tip of the contact pin 23 is a contact surface 24 provided that for contacting the vibrating body 19th serves.
  • the transmission element 21 and the contact pin 23 are opposite the rotary drive shaft 11 and the Screwing tool 13 by insulating means 26, 27 electrically isolated.
  • the circuit from the evaluation device 18 to Vibrating body 19 is connected via a ground connection 25 closed.
  • the ground connection is made via the Rotary drive shaft 11, the screwing tool 13 and the Screw 14 to the vibrating body 19 each electrically are conducted. Basically, it can also be a separate, insulated conductor is provided as a ground connection be.
  • the rotary drive shaft 11 and the screwing tool 13 are rotationally connected via a polygonal profile 30. How 2 shows the polygonal profile 29 exemplarily designed as a square profile.
  • tool holder 12 is shaped as an outer square 30, partially in a corresponding inner square 31 trained opening 32 engages in the screwing tool 13.
  • the screwing tool 13 is axially secured on the Tool holder 12 by two securing elements 33, which each with a pin-like end radially through holes 34, 35 in the screwing tool 13 in longitudinal grooves 36, 37 in the Engage tool holder 12.
  • the securing elements 33 are each provided with clamps 38, 39, which are circular over more than a quarter circle and less than extend a semicircle and from resilient Material are made.
  • the clamping bracket 38, 39 are on Outside circumference of the screwing tool 13. After spreading the Clamping brackets 38, 39 are the radially outward Securing elements 33 can be removed from the screwing tool 13.
  • the screwing tool 13 is in with the force of a spring 40 Direction applied to the screw 14.
  • the spring 40 is based on the one hand on a federal government 41 Rotary drive shaft 11 and the other end on Screwing tool 13.
  • At the end facing the screw 14 15 of the screwing tool 13 is an annular projection on the end face 42 arranged, the trouble-free contact between Screwing tool 13 and screw 14 in the area of Base area 17 allows.
  • the second exemplary embodiment according to FIGS. 3 to 7 are the same as or compared to the first embodiment equivalent parts with reference numbers increased by 100 featured.
  • the main difference between the first and the second embodiment is in the way the axial fixing of the screwing tool 13, 113 opposite the tool holder 12, 112, and in the Formation of the screwing tool 13, 113.
  • Analogous to the first The embodiment is the rotary drive shaft 111 of one Transmission element 121 pulled through axially, at the end a telescopically spring-loaded contact pin 123 is arranged is.
  • Transmission element 121 and contact pin 123 are opposite the rotary drive shaft 111 or the screwing tool 113 electrically isolated by insulating means 126, 127.
  • over the contact surface 124 of the contact pin 123 is the Vibrating body 19 on the head 114a of the screw 114 electrically conductively connected to the evaluation device 118.
  • Of the Circuit is according to the first embodiment closed via the ground connection 125.
  • the tool holder 112 is also an outer square 130 formed, which with attached screwing tool 113 in a corresponding square socket 131 of the Screwing tool 113 engages.
  • the axial securing of the Screwing tool 113 opposite the rotary drive shaft 111 serves an area 136 opposite the tool holder 112 reduced edge cross-section of the outer square 130.
  • a Washer 150 is connected to the Screwing tool 113 on the of the rotary drive shaft 111 facing end face connected.
  • On the screwing tool 113 there are several undercuts 152 on the circumference distributed arranged, in which the disc 150 can engage.
  • the disc 150 is shown in view while Figure 5 is a view of the rotary drive side Front of the screwing tool 113 shows.
  • On the disc 150 four wings 153 are arranged on the circumference, which in the shown rotational position of disc 150 and Screwing tool 113 axially in associated recesses 154 can be inserted.
  • the locking projections 152 engage behind Cover area 155 of the wing 153, so that the Screwing tool 113 axially within limits of area 136 the tool holder 112 is fixed.
  • the disc 150 has a through hole 156 shaped so that it can be pushed over the outer polygon 130 and in Area 136 with a reduced edge cross section of the Longitudinal grooves 136, 137 with respect to the rotary drive shaft 111 is rotatable.
  • the through hole 156 is the Disc 150 recognizable.
  • the edges 137 are in the region 136 of the outer square 130 rounded.
  • the screwing tool 113 becomes the rotational position of the disk 150 axially limited by the edges 137 of the polygonal profile 29.
  • the disk 150 is against rotation in the circumferential direction a locking plate 157 (see also Figure 6) secured that in the secured position in recesses 158 am The outer circumference of the screwing tool 113 snaps into place.
  • the screwing tool 113 is also in the second Embodiment by a spring 140 in the direction of Bolt 114 preloaded.
  • the spring 140 is in one Blind hole 160 at end 150 of rotary drive shaft 111 partially housed and supported on the rotary drive shaft 111 from.
  • An annular projection 142 can be provided in the receiving opening which the ground contact at completely on the Screw head 114a attached screwing tool 113 additionally improved. Due to the axial displacement of the Screwing tool 113 is, however, a measurement of the Preload of the screw connection also possible without beforehand the screwing tool 113 in the correct position To put screw head 114a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP96101875A 1995-03-03 1996-02-09 Schraubvorrichtung mit Messeinrichtung Expired - Lifetime EP0729808B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19507390A DE19507390A1 (de) 1995-03-03 1995-03-03 Schraubvorrichtung mit Meßeinrichtung
DE19507390 1995-03-03

Publications (2)

Publication Number Publication Date
EP0729808A1 EP0729808A1 (de) 1996-09-04
EP0729808B1 true EP0729808B1 (de) 1998-11-04

Family

ID=7755505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101875A Expired - Lifetime EP0729808B1 (de) 1995-03-03 1996-02-09 Schraubvorrichtung mit Messeinrichtung

Country Status (6)

Country Link
US (1) US5699703A (es)
EP (1) EP0729808B1 (es)
JP (1) JP3919249B2 (es)
BR (1) BR9600887A (es)
DE (2) DE19507390A1 (es)
ES (1) ES2123305T3 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19880112D2 (de) * 1997-02-12 2000-05-11 Thomas Loeffler Verfahren und Vorrichtung zum Herstellen von Schraubverbindungen
DE19859019A1 (de) * 1998-12-21 2000-06-29 Bosch Gmbh Robert Schrauberbit für eine ultraschallgesteuerte Schraubvorrichtung
SE515534C2 (sv) * 1999-04-28 2001-08-20 Atlas Copco Tools Ab Momentappliceringssystem för åtdragning av fästelement och en uppsättning mutterhylsor
FR2836718B1 (fr) * 2002-03-01 2004-06-18 Trw Sys Aeronautiques Civil Dispositif de detection d'usure de l'ecrou d'un ensemble vis-ecrou
DE10237728A1 (de) * 2002-08-17 2004-02-26 Est Technologie Gmbh & Co. Kg Vorrichtung zur Längenmessung von Schrauben
US20040129118A1 (en) * 2003-01-02 2004-07-08 Junkers John K. Fluid-operated torque tool
JP4524197B2 (ja) * 2004-03-02 2010-08-11 株式会社サンノハシ 軸力検知締結工具、ボルト、ボルトの製造方法
NL1026933C2 (nl) * 2004-08-31 2006-03-01 Baal & Partners Van Werkwijze en inrichting voor het losmaken van een klemmende verbinding, in het bijzonder een gloeibougie.
US7278341B1 (en) * 2005-06-24 2007-10-09 Selective Site Consultants, Inc. Structural bolt security apparatus
DE102015104133A1 (de) * 2015-03-19 2016-09-22 Frank Hohmann Spannvorrichtung zum Dehnen eines Gewindebolzens
DE102015111826A1 (de) * 2015-07-21 2017-01-26 Airbus Operations Gmbh System und verfahren zur durchführung einer messung an einem verbindungselement
JP6678708B2 (ja) * 2018-08-03 2020-04-08 本田技研工業株式会社 ボルト軸力測定方法及びこの方法に使用するボルト
FR3109441B1 (fr) 2020-04-20 2022-07-15 Safran Aircraft Engines Procédé et dispositif de contrôle de la tension de serrage d’un boulon de fixation de pieces aéronautiques
CN114954783B (zh) * 2022-05-25 2023-09-05 中国船舶重工集团公司第七一五研究所 一种便携式高精度拖头加载装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969960A (en) * 1974-05-13 1976-07-20 Dominick A Pagano Method and apparatus for tightening a bolt to exert a predetermined tension force by monitoring bolt elongation while the bolt is being installed
FR2542869B1 (fr) * 1983-03-16 1985-08-30 Centre Techn Ind Mecanique Dispositif de serrage et de mesure par ultrasons des tensions de serrage
US4899591A (en) * 1987-09-11 1990-02-13 Sps Technologies, Inc. Ultrasonic load indicating member, apparatus and method
US5058439A (en) * 1990-06-06 1991-10-22 The Babcock & Wilcox Company Ut socket assembly
EP0467262A1 (de) * 1990-07-20 1992-01-22 Kamax-Werke Rudolf Kellermann GmbH & Co. KG Vorrichtung zum Anziehen einer Schrauben/Mutter-Verbindung unter Ultraschalleinwirkung zu Montagezwecken
DE4038507C1 (en) * 1990-12-03 1992-06-17 Abb Reaktor Gmbh, 6800 Mannheim, De Device for remotely seating and tightening screw - includes ultrasound test head for measuring longitudinal expansion of screw shaft, used in nuclear reactor installation
IT1249895B (it) * 1991-06-05 1995-03-30 Fiat Auto Spa Dispositivo di avvitatura, provvisto di mezzi per la misurazione del tiro di serraggio di una vite.
FR2684585B1 (fr) * 1991-12-09 1995-07-21 Centre Techn Ind Mecanique Douille de serrage de vis et de mesure par ultrasons.
US5442327A (en) * 1994-06-21 1995-08-15 Motorola, Inc. MMIC tunable biphase modulator

Also Published As

Publication number Publication date
JPH08243943A (ja) 1996-09-24
DE59600753D1 (de) 1998-12-10
BR9600887A (pt) 1997-12-30
JP3919249B2 (ja) 2007-05-23
ES2123305T3 (es) 1999-01-01
EP0729808A1 (de) 1996-09-04
US5699703A (en) 1997-12-23
DE19507390A1 (de) 1996-09-05

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