EP1462220A1 - Clé à serrage contrôlé - Google Patents
Clé à serrage contrôlé Download PDFInfo
- Publication number
- EP1462220A1 EP1462220A1 EP04290603A EP04290603A EP1462220A1 EP 1462220 A1 EP1462220 A1 EP 1462220A1 EP 04290603 A EP04290603 A EP 04290603A EP 04290603 A EP04290603 A EP 04290603A EP 1462220 A1 EP1462220 A1 EP 1462220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tightening
- angle
- torque
- instantaneous
- friction
- 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
Links
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 17
- 230000003068 static effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000011282 treatment Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 6
- 229920006362 Teflon® Polymers 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Images
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
Definitions
- the present invention relates to the field of controlled tightening and more particularly to manual tightening wrenches, such as wrenches load cells, including electrical or electronic means measurement and processing to inform the operator that a value of setpoint is reached.
- Torque tightening has the advantage of being simple to use. On the other hand, it has a major drawback: for a given tightening torque, the force on the screws varies greatly, following the large dispersion of the coefficient of friction. This is illustrated schematically in Figure 9. In this figure we see that for a given setpoint torque C applied , it results, due to the dispersion of the apparent coefficient of friction [ ⁇ min , ⁇ max ], a dispersion [F min , F max ] of the tensile force F on the hardware and, consequently, of the mechanical deformation.
- the present invention aims to remedy the aforementioned drawbacks and to produce a tightening key which prevents oversizing of the connections to be screwed while allowing tightening in one step.
- the invention aims also to carry out a key which makes it possible to resume without difficulty a tightening interrupted before reaching the target value.
- a tightening key comprising a means for instantaneous measurement of the applied torque, a head capable of cooperating with a fastening element, said head being equipped with a means of instant measurement of the angle of rotation, and input means for record characteristics of the fastening element as well as a value set point for tightening, characterized in that the key comprises in addition to processing means for calculating the tensile force snapshot on the fasteners according to the instantaneous values measured torque and angle as well as characteristics of the item of fasteners saved.
- the instantaneous tensile force is directly calculated during tightening which allows either to be able to directly perform a tightening effort-controlled, i.e. having the value of the effort at the end of Tightening.
- the quality of the clamping can therefore be checked directly during tightening or at the end of it. Oversizing bonds can thus be avoided.
- the wrench of the present invention also allows obtain and memorize a set of information on the coefficient of apparent friction of the connection, in particular the evolution of this coefficient as a function of speed and time as well as the difference between the static and dynamic coefficient of friction. Access to this type of information relating to the coefficient of friction makes it possible to detect possible anomalies such as binding seizure if the coefficient of friction detected is too high.
- the processing means calculate the instantaneous effort in time real, which makes it possible to tighten the fastening element in one single step.
- the processing means include software means for calculating the coefficient of instant friction of the fastening element or to resume a tightening interrupted before reaching the set value.
- the means of processing include software means to detect automatically, during the tightening operation, the passage of the elastic domain to the plastic domain and to calculate the instantaneous force tension on the fasteners according to the result of the detection of tightening range.
- the measuring means instantaneous angle of rotation includes a socket capable of cooperating with the fastening element, a support element formed of a material to low coefficient of friction so as not to disturb the measurement of the torque clamp and a spring interposed between the sleeve and the support element.
- the end of the support element intended to be in contact with the element of hardware is provided with a material with a high coefficient of friction, such as only rubber, so that the part of the socket used to measure the angle of rotation is supported without turning on the threaded element of screws to tighten.
- the key may further comprise storage means and a display device for storing and indicating relative information at tightening such as torque and angle of rotation values measured during tightening, the tensile force calculated during tightening, calculated coefficients of static and dynamic friction during tightening, as well as the tightening range.
- the set value can correspond to a tensile force, to torque, or at a predetermined tightening angle.
- the device includes warning means controlled by the means of processing when the calculated or measured value reaches the value of setpoint.
- the instantaneous torque measurement means applied, means of entry, means of treatment and, if applicable the display device are arranged in a handle connected to the wrench head to allow operator to tighten manually.
- the tightening control method used in the key present invention requires two types of measurements, that of the torque of applied clamping and that of the clamping rotation angle.
- the torque measurement is carried out in a conventional manner as in most commercial torque wrenches, i.e. by extensometry using signals from strain gauges.
- the angle of rotation is measured, electrically or electronically, using two concentric cylindrical surfaces of the link.
- the measuring device used must generate a low coefficient friction between the moving parts so as not to affect significantly the tightening torque taken into account in the calculations.
- a such a device may for example be a ball system, or else tubes or bars made of materials with low coefficients of friction, such as than Teflon®. The latter type of angle measuring device rotation will be described in more detail later in this description.
- FIG. 1 is a block diagram which schematically illustrates the system implemented in the wrench of the present invention.
- the key firstly comprises programmable processing means, such as a microprocessor or computer 1, for carrying out the calculations necessary for controlling the tightening according to the invention.
- the microprocessor also has the function of managing the inputs and outputs of the system to allow an operator to control the tightening.
- the microprocessor 1 receives as input an instantaneous value C (t) of the tightening torque from a device for measuring the torque 2 and an instantaneous value ⁇ ( t ) of the angle of rotation given by a angle measurement 3.
- the microprocessor 1 is also connected to a data input means, such as a keyboard 4, to allow the operator to indicate the set values (ie effort, torque, angle) that it wishes to achieve as well as the physical parameters of the connection to be tightened which will be used in the calculations.
- a data input means such as a keyboard 4
- the system may include an audible warning device 7 and / or a warning device, such as a light-emitting diode 6, which are activated by a warning signal S warning sent by the microprocessor.
- the system further comprises a display device 5, connected to the microprocessor, for displaying the various data to be entered by the operator as well as all the data available at the end of tightening in digital or graphic form.
- the tightening control method object of the invention highlights performs a mathematical processing, carried out by the microprocessor, which is described below.
- FIG. 2 illustrates an operation of assembling two parts 130 and 131 by tightening a bolt-type connection 120 comprising a screw 121 and a nut 122.
- the parts that rotate during tightening are shown in solid lines while the fixed parts are shown in broken lines.
- a wrench is used to tighten the connection 120.
- clamping 100 which comprises a head 101 disposed at the end of a sleeve 102.
- the microprocessor 1, the keyboard 4 and the device display 5 can be included in the handle 102 or else be deported from the key while being connected to it via a serial link for example.
- the screw 121 includes a threaded part 121A connected to a head 121B which is held in position by a counter-key 104.
- the assembly of parts 130 and 131 is then produced by tightening the nut 122 by means of the key 100.
- the key 100 includes a means for measuring (not shown) the applied tightening torque, such as gauges constraints, which delivers an electrical signal proportional to the torque applied.
- the angle of rotation is measured by a measuring device 110 which comprises a clamping sleeve 112 cooperating with the nut 122.
- the measuring device 110 measures the rotation differential between the socket 112 and the screw 121.
- the measure 110 includes a Teflon® bar 111 interposed between the screw 121 and a spring 113 resting on the sleeve 102.
- a pellet non-slip 114 is interposed between the contact surface of the screw and the bar 111 so that the part of the socket used to measure the angle of rotation is supported without turning on the screw to be tightened.
- the spring is used to apply sufficient normal force to the non-slip pad to prevent it from rotating.
- the angle of rotation can be measured according to several conventional techniques such as measurement mechanical (e.g. spiral spring), electrical (e.g. rheostat type), optical or magnetic.
- the values E, A, L and p are entered by the operator using the keyboard 4.
- the rotation angle ⁇ (t) is measured by the measuring device 3 of the key.
- the procedure consists in introducing, before tightening, the values of the following parameters: F set point, p, E, A, L, D t , d, ⁇ , d 2 , ⁇ . Consequently, since the instantaneous force F (t) is calculated throughout the tightening operation, the resulting tightening force will be precisely the target force entered by the operator. Thus, the significant dispersions on the tightening force which existed with the torque tightening wrenches of the prior art are eliminated. Oversizing of the connections is no longer necessary since it guarantees the clamping force obtained in advance.
- the effort snapshot can be calculated in real time which allows effort tightening in one step.
- FIG. 3 shows how the instant when the setpoint value F setpoint for the tensile force is reached is determined, depending on whether the mechanical connection remains in the domain of elastic deformations or, on the contrary, reaches the domain of plastic deformations .
- connection remains in the domain of elastic deformations, it suffices in this case to interrupt the tightening when the force F (t), calculated according to relation (1) reaches the setpoint value F setpoint .
- the processing means detect, in real time, the start of plasticization by reducing the slope of the curve B. From this moment, F (t) ceases to be determined from (1) which is no longer valid but is calculated as follows.
- Figure 4 shows the theoretical shape of the coefficient of friction between two surfaces in contact as a function of their relative speed V, that the coefficient of friction ⁇ (t) tends quickly to a constant dynamic ⁇ value .
- This value can be calculated approximately by means of the relation (2), applied to the limit of the elastic domain, where the relation (1) is still valid to determine the instantaneous tensile force F (t). It then suffices to use the relation (2), reduced in this case to a simple linear equation, with the constant value found for dynamic ⁇ to determine F (t) and stop the tightening when the setpoint value F setpoint is reached for the tensile force.
- the processing means are programmed to detect in real time the transition from elastic to plastic and change to consequently the calculation of the effort as described above.
- the tightening key according to the invention also has the advantage of being able to resume interrupted tightening before reaching the set value, unlike conventional torque tightening (trigger key for example). Indeed, in the case of torque tightening with a torque wrench of the prior art, if the tightening was interrupted before its end, it is no longer possible to reach the target force because, as shown Figure 4, when you want to resume tightening, the coefficient of friction is significantly higher than before interruption. It is therefore necessary to apply a tightening torque greater than that specified so that the force in the threaded element can increase again.
- this situation is automatically detected and managed thanks to instantaneous measurements carried out on the torque C (t) and the angle of rotation ⁇ (t) on the one hand, and with the parameters, in particular the coefficient of friction, calculated according to equations (1) and (2) on the other hand.
- FIG. 5 illustrates an example of resumption of tightening interrupted with the key according to the invention.
- point A indicates the moment when tightening is interrupted before reaching the setpoint value, that is to say at the value F stopinterm ⁇ F setpoint .
- the key processing means detect that the tightening is interrupted because F stopinterm ⁇ F setpoint while the angle of rotation ⁇ (t) no longer changes.
- the intermediate value F stopinterm is memorized. At this moment, we can remove the socket and do all kinds of control operations on the equipment.
- the processing means detect it by the information given by the couple C (t) which changes again.
- the processing means detect the moment when the angle of rotation ⁇ (t) begins to increase again, and, as soon as this is the case, calculate the friction coefficient f (t) , the evolution of which is represented by the curves in lines discontinuous f static 'and f dynamic '.
- the wrench of the present invention is not limited to tightening bolts.
- the key can be used to tightening screws, plugs, unions and fittings as illustrated in the figures 6 to 8.
- the parts which are in rotation during of the tightening are shown in solid lines while the fixed parts are shown in broken lines.
- Figure 6 illustrates the configuration used for tightening a screw or plug 221 in order to assemble a first part 230 with a second piece 231 tapped to receive the threaded part 221A of the screw.
- the tightening is carried out with a key 200 similar to the key 100 of the figure 2.
- the angle of rotation is measured by a measuring device 210 which includes a clamping sleeve 212 cooperating with the head 221B of the screw.
- the measuring device 210 measures the differential rotation between the sleeve 212 and the first part 230 by means of a spring 213 arranged around the outer periphery of the sleeve, a Teflon tube @ 211, fitted with a non-slip ring 214, being interposed between the spring 213 and the upper surface of the first part 230.
- Figure 7 shows the tightening of a union 330 on an element 331 with interposition of a seal 332 type seal in V.
- the device for measuring the angle of rotation 310 includes a clamping sleeve 312 with a spring 313, a Teflon tube @ 311 and, optionally, a non-slip ring 314, to measure the differential rotation between the socket and the element of location 331.
- Figure 8 shows the tightening of a tapered fitting formed of two pieces of tubing 430 and 431 joined by a ring nut 432.
- the angle measuring device 410 always formed by a clamping sleeve 412, a spring 413, a tube 411 and a non-slip ring 414, measures the differential rotation between the socket and a counter-wrench clamp 414 used to hold the piece of tubing 431 in position.
- the tightening operation described above in the particular case of effort tightening of bolts can easily be generalized to others configurations described in relation to FIGS. 6 to 8. To do this, it suffices to adapt the length parameter L to each of these configurations.
- the parameter L represents the length of the part of the threaded element which is not in screw / nut cooperation, the nut can be a part as in the figure 6.
- the wrench and its measuring and checking means can also be used for other tightening methods such as tightening to the torque, to the angle, to the torque then to the angle (or vice versa), to the torque with angle control (or vice versa).
- torque tightening tightening is carried out in the same way as with a conventional electronic key. It suffices to introduce the target torque C setpoint (figure 1) onto the key, then to tighten until an audible and / or light signal announces that the required torque has been obtained. The specific instrumentation of the sockets is not used in this type of tightening.
- angle tightening tightening is carried out according to the same principle as that of torque tightening. It is sufficient to indicate on the key the targeted tightening angle ⁇ setpoint and then tighten until an audible and / or light signal announces that the imposed tightening angle has been obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Valve Device For Special Equipments (AREA)
- Power Steering Mechanism (AREA)
- Gasification And Melting Of Waste (AREA)
- Optical Communication System (AREA)
Abstract
Description
- la figure 1 est une vue schématique du circuit de contrôle de la clé de serrage conformément à un mode de réalisation de l'invention,
- la figure 2 est une vue en perspective et en coupe partielle d'un mode de réalisation de la clé selon l'invention utilisé pour le serrage d'une liaison type boulon,
- la figure 3 est une courbe montrant l'évolution de l'effort de traction F(t) en fonction du couple C(t) et de l'angle de rotation (t) mesurés conformément à l'invention,
- la figure 4 est une courbe montrant l'allure théorique du coefficient de frottement f entre deux surfaces en contact en fonction de leur vitesse relative V,
- la figure 5 est une courbe montrant l'évolution de l'effort de traction F(t) en fonction du couple C(t) et de l'angle de rotation (t) mesurés en cas de serrage interrompu conformément à l'invention,
- la figure 6 est une vue en coupe d'un mode de réalisation de la clé selon l'invention utilisé pour le serrage d'une vis,
- la figure 7 est une vue en coupe partielle d'un mode de réalisation de la clé selon l'invention utilisé pour le serrage d'une liaison de type union,
- la figure 8 est une vue en coupe partielle d'un exemple de configuration de la clé selon l'invention utilisé pour le serrage d'une liaison de type raccord, et
- la figure 9 représente des courbes d'effort de traction F en fonction du couple de serrage C.
Caractéristiques finales du serrage | (C, , F)serrage |
Caractérisation du frottement | ƒstatique et ƒdynamique |
Plastification de la visserie | • serrage en domaine de déformations élastiques ou plastiques |
• dans le cas d'un serrage dans le domaine des déformations plastiques : (C, , F)plastification | |
Traçabilité du serrage | C(t), (t), F(t), f(t) |
Claims (14)
- Clé de serrage (100) comprenant une tête (101) apte à coopérer avec un élément de visserie (122), un moyen de mesure instantané (2) du couple appliqué, une tête apte à coopérer avec un élément de visserie, ladite tête étant équipée d'un moyen de mesure instantané (3) de l'angle de rotation, des moyens d'entrée (4) pour enregistrer des caractéristiques de l'élément de visserie ainsi qu'une valeur de consigne pour le serrage, et des moyens de traitement (1) pour calculer l'effort instantané de traction sur l'élément de visserie en fonction des valeurs instantanées mesurées du couple et de l'angle ainsi que des caractéristiques de l'élément de visserie enregistrées,
caractérisée en ce que les moyens de traitement (1) comprennent en outre des moyens logiciels pour détecter automatiquement, au cours de l'opération de serrage, le passage du domaine élastique au domaine plastique et pour calculer l'effort instantané de traction sur la visserie en fonction du résultat de la détection du domaine de serrage. - Clé de serrage selon la revendication 1, caractérisée en ce que les moyens de traitements calculent l'effort instantané en temps réel afin d'effectuer le serrage de l'élément de visserie en une seule étape.
- Clé de serrage selon la revendication 1 ou 2, caractérisée en ce que les moyens de traitement (1) comprennent en outre des moyens logiciels pour calculer le coefficient de frottement instantané de l'élément de visserie au cours du serrage, le calcul du coefficient de frottement instantané (C(t)) étant effectué par résolution de l'intégrale suivante : avec : et :Dt : diamètre équivalent de contact entre la rondelle et la tête de la visd : diamètre du filetageα : angle d'hélice du filetage de la visseried2 : diamètre théorique de contact entre filets (sur flanc de filets)β : demi-angle du filetage de la visserie (30° pour filetage ISO M)
- Clé de serrage selon la revendication 3, caractérisée en ce qu'elle comprend des moyens pour détecter des anomalies comme un grippage de la liaison en fonction de la valeur du coefficient de frottement mesurée.
- Clé de serrage selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le moyen de mesure instantané de l'angle de rotation comprend une douille (112) apte à coopérer avec l'élément de visserie, un élément d'appui (111) formé d'un matériau à faible coefficient de frottement et un ressort (113) interposé entre la douille et l'élément d'appui, l'extrémité de l'élément d'appui destinée à être en contact avec l'élément de visserie étant munie d'un élément à fort coefficient de frottement (114).
- Clé de serrage selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les moyens de traitement (1) comprennent des moyens logiciels pour reprendre un serrage interrompu avant l'atteinte de la valeur de consigne.
- Clé de serrage selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'elle comprend en outre des moyens de stockage et un dispositif d'affichage (5) pour mémoriser et indiquer des informations relatives au serrage qui sont disponibles après l'opération de serrage.
- Clé de serrage selon la revendication 7, caractérisée en ce que les informations relatives au serrage comprennent notamment les valeurs du couple (C(t)) et de l'angle de rotation ((t)) mesurées pendant le serrage, l'effort de traction (F(t)) calculé pendant le serrage, les coefficients de frottement statique (f statique) et dynamique (f dynamique) calculés pendant le serrage, ainsi que le domaine du serrage avec des informations (C, , F)platification en cas de plastification de l'élément de visserie.
- Clé de serrage selon la revendication 7, caractérisée en ce que les informations relatives au serrage comprennent l'évolution du coefficient de frottement calculé en fonction de la vitesse et du temps.
- Clé de serrage selon la revendication 7, caractérisée en ce que les informations relatives au serrage comprennent la différence calculée entre le coefficient de frottement statique et dynamique.
- Clé de serrage selon l'une quelconque des revendications 1 à 10, caractérisée en ce que la valeur de consigne correspond à un effort de traction prédéterminé et que le dispositif comprend des moyens d'avertissement commandés par les moyens de traitement lorsque la valeur de l'effort calculée atteint la valeur de consigne.
- Clé de serrage selon l'une quelconque des revendications 1 à 10, caractérisée en ce que la valeur de consigne correspond à un couple de serrage prédéterminé et que le dispositif comprend des moyens d'avertissement commandés par les moyens de traitement lorsque la valeur de couple mesurée atteint la valeur de consigne.
- Clé de serrage selon l'une quelconque des revendications 1 à 10, caractérisée en ce que la valeur de consigne correspond à un angle de serrage prédéterminé et que le dispositif comprend des moyens d'avertissement commandés par les moyens de traitement lorsque la valeur d'angle de rotation mesurée atteint la valeur de consigne.
- Clé de serrage selon l'une quelconque des revendications 1 à 13, caractérisée en ce que ladite clé est une clé de serrage manuelle, le moyen de mesure instantané (2) du couple appliqué, les moyens d'entrée (4) et les moyens de traitement (1) étant compris dans un manche (102) pour permettre à un opérateur d'effectuer le serrage manuellement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0303695 | 2003-03-26 | ||
FR0303695A FR2852879B1 (fr) | 2003-03-26 | 2003-03-26 | Cle a serrage controle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1462220A1 true EP1462220A1 (fr) | 2004-09-29 |
EP1462220B1 EP1462220B1 (fr) | 2006-01-04 |
Family
ID=32799750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04290603A Expired - Lifetime EP1462220B1 (fr) | 2003-03-26 | 2004-03-05 | Clé à serrage contrôlé |
Country Status (6)
Country | Link |
---|---|
US (1) | US7036407B2 (fr) |
EP (1) | EP1462220B1 (fr) |
AT (1) | ATE314905T1 (fr) |
DE (1) | DE602004000304T2 (fr) |
ES (1) | ES2255038T3 (fr) |
FR (1) | FR2852879B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3002471A1 (fr) * | 2013-02-28 | 2014-08-29 | Snecma | Outil de montage d'une bague interieure de roulement portant une cage de roulement et des vis de maintien dans une turbomachine |
EP3147081A1 (fr) * | 2015-09-25 | 2017-03-29 | Schneider Electric Industries SAS | Dispositif de surveillance de la température et du serrage d'une vis |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4435012B2 (ja) * | 2005-04-07 | 2010-03-17 | 京都機械工具株式会社 | トルクレンチ |
US7475619B2 (en) * | 2005-04-22 | 2009-01-13 | The Stanley Works | Over torque proof socket |
FR2887166A1 (fr) * | 2005-06-15 | 2006-12-22 | Renault Sas | Procede de serrage de vis a l'aide d'un outil automatique |
US7565844B2 (en) * | 2005-11-28 | 2009-07-28 | Snap-On Incorporated | Torque-angle instrument |
US20080127786A1 (en) * | 2006-12-05 | 2008-06-05 | Chih-Ching Hsieh | Hand tool with earphone |
US8087330B2 (en) * | 2006-12-05 | 2012-01-03 | Chih-Ching Hsieh | Hand tool with warning effect |
US7311025B1 (en) * | 2006-12-06 | 2007-12-25 | American Power Tool Company | Powered driver with location specific switching |
US7779704B1 (en) * | 2009-02-02 | 2010-08-24 | George Chu | Anti-vibration torque sensing and control device for tools |
US20100199782A1 (en) * | 2009-02-06 | 2010-08-12 | Chih-Ching Hsieh | Torque-Angle Alarm Method and Wrench thereof |
WO2011097653A1 (fr) * | 2010-02-08 | 2011-08-11 | Junkers John K | Appareil et procédés pour serrer des fixations filetées |
CN104149062B (zh) * | 2014-06-30 | 2016-04-06 | 山东中兴电动工具有限公司 | 一种可控预紧力电动扳手 |
TWI723185B (zh) * | 2016-06-27 | 2021-04-01 | 日商華爾卡股份有限公司 | 凸緣的鎖緊管理方法、鎖緊管理系統、鎖緊管理程式及鎖緊管理裝置 |
US11602810B2 (en) * | 2019-01-29 | 2023-03-14 | Jörg Hohmann | Method for documented tightening and re-tightening of a screw connection |
US11612989B2 (en) * | 2019-11-21 | 2023-03-28 | Aktiebolaget Skf | Device, system and method for measuring angle adjustment of a hookspanner wrench to accurately tighten a bearing onto a shaft having an adapter sleeve |
CN112879406B (zh) * | 2021-01-12 | 2022-11-04 | 浙江吉利控股集团有限公司 | 螺纹紧固件的操作方法及控制系统 |
FR3138930B1 (fr) | 2022-08-17 | 2024-09-13 | Safran Aircraft Engines | Vis d’assemblage instrumentée |
CN115582796A (zh) * | 2022-08-31 | 2023-01-10 | 上海交通大学 | 一种螺栓紧固装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4375121A (en) * | 1980-04-07 | 1983-03-01 | Sps Technologies | Dynamic friction indicator and tightening system usable therewith |
DE3327964A1 (de) * | 1983-08-03 | 1985-02-28 | Oskar Ing.(grad.) 7073 Lorch Mohilo | Verfahren zum identifizieren von verbindungsschrauben nach typ und/oder anziehvorschrift |
DE4404419A1 (de) * | 1994-02-11 | 1995-08-24 | Schatz Gmbh | Verfahren und Vorrichtung zum gesteuerten Festziehen von Schraubverbindungen |
WO1998022263A1 (fr) * | 1996-11-19 | 1998-05-28 | Hohmann Joerg | Visseuse |
FR2780785A1 (fr) * | 1998-07-03 | 2000-01-07 | Sam Outillage | Procede et dispositif de mesure et de serrage d'un assemblage par organe filete |
EP1022097A2 (fr) * | 1999-01-22 | 2000-07-26 | BLM S.a.s. di L. Bareggi & C. | Clé dynamométrique avec capteur d'angle sans référence externe |
WO2000064639A1 (fr) * | 1999-04-28 | 2000-11-02 | Atlas Copco Tools Ab | Systeme de serrage de fixations munies d'un dispositif d'emission et de detection d'ondes acoustiques ultrasonores |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4333220A (en) * | 1980-01-18 | 1982-06-08 | Sps Technologies, Inc. | Method and apparatus for tightening an assembly including a pre-load indicating fastener |
US4858312A (en) * | 1988-04-18 | 1989-08-22 | Ideal Industries, Inc. | Torque control for automatic connector assembly tool |
US5154242A (en) * | 1990-08-28 | 1992-10-13 | Matsushita Electric Works, Ltd. | Power tools with multi-stage tightening torque control |
DE19637067A1 (de) * | 1996-09-12 | 1998-03-19 | Saltus Werk Max Forst Gmbh | Drehmomentschlüssel |
US6119562A (en) * | 1999-07-08 | 2000-09-19 | Jenkins; Bradley G. | Electromechanical releasing torque wrench |
-
2003
- 2003-03-26 FR FR0303695A patent/FR2852879B1/fr not_active Expired - Fee Related
-
2004
- 2004-03-05 ES ES04290603T patent/ES2255038T3/es not_active Expired - Lifetime
- 2004-03-05 EP EP04290603A patent/EP1462220B1/fr not_active Expired - Lifetime
- 2004-03-05 DE DE602004000304T patent/DE602004000304T2/de not_active Expired - Lifetime
- 2004-03-05 AT AT04290603T patent/ATE314905T1/de not_active IP Right Cessation
- 2004-03-22 US US10/806,003 patent/US7036407B2/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4375121A (en) * | 1980-04-07 | 1983-03-01 | Sps Technologies | Dynamic friction indicator and tightening system usable therewith |
DE3327964A1 (de) * | 1983-08-03 | 1985-02-28 | Oskar Ing.(grad.) 7073 Lorch Mohilo | Verfahren zum identifizieren von verbindungsschrauben nach typ und/oder anziehvorschrift |
DE4404419A1 (de) * | 1994-02-11 | 1995-08-24 | Schatz Gmbh | Verfahren und Vorrichtung zum gesteuerten Festziehen von Schraubverbindungen |
WO1998022263A1 (fr) * | 1996-11-19 | 1998-05-28 | Hohmann Joerg | Visseuse |
FR2780785A1 (fr) * | 1998-07-03 | 2000-01-07 | Sam Outillage | Procede et dispositif de mesure et de serrage d'un assemblage par organe filete |
EP1022097A2 (fr) * | 1999-01-22 | 2000-07-26 | BLM S.a.s. di L. Bareggi & C. | Clé dynamométrique avec capteur d'angle sans référence externe |
WO2000064639A1 (fr) * | 1999-04-28 | 2000-11-02 | Atlas Copco Tools Ab | Systeme de serrage de fixations munies d'un dispositif d'emission et de detection d'ondes acoustiques ultrasonores |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3002471A1 (fr) * | 2013-02-28 | 2014-08-29 | Snecma | Outil de montage d'une bague interieure de roulement portant une cage de roulement et des vis de maintien dans une turbomachine |
WO2014131989A3 (fr) * | 2013-02-28 | 2014-11-27 | Snecma | Outil, procédé et kit de montage d'une bague intérieure de roulement portant une cage de roulement et des vis de maintien dans une turbomachine |
US9938856B2 (en) | 2013-02-28 | 2018-04-10 | Snecma | Tool for fitting an inner bearing race carrying a bearing cage and screws for retaining in a turbomachine |
RU2660548C2 (ru) * | 2013-02-28 | 2018-07-06 | Снекма | Инструмент для установки внутреннего кольца подшипника, несущего обойму подшипника, и винты для удержания в турбомашине |
EP3147081A1 (fr) * | 2015-09-25 | 2017-03-29 | Schneider Electric Industries SAS | Dispositif de surveillance de la température et du serrage d'une vis |
FR3041719A1 (fr) * | 2015-09-25 | 2017-03-31 | Schneider Electric Ind Sas | Dispositif de surveillance de la temperature et du serrage d'une vis |
US10365122B2 (en) | 2015-09-25 | 2019-07-30 | Schneider Electric Industries Sas | Device for monitoring temperature and tightening of a screw |
Also Published As
Publication number | Publication date |
---|---|
US20040187652A1 (en) | 2004-09-30 |
FR2852879A1 (fr) | 2004-10-01 |
FR2852879B1 (fr) | 2007-04-06 |
ES2255038T3 (es) | 2006-06-16 |
ATE314905T1 (de) | 2006-02-15 |
US7036407B2 (en) | 2006-05-02 |
DE602004000304D1 (de) | 2006-03-30 |
DE602004000304T2 (de) | 2006-09-21 |
EP1462220B1 (fr) | 2006-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1462220B1 (fr) | Clé à serrage contrôlé | |
EP1751513B1 (fr) | Procede de controle de la mise sous tension d'une tige de boulon, du type vis ou goujon d'assemblage, et dispositif de mise en oeuvre d'un tel procede | |
EP2935759B1 (fr) | Procede de controle d'un etat de vissage d'un joint filete tubulaire | |
EP3320219B1 (fr) | Vis munie de jauges d'extensometrie pour mesurer la contrainte de traction et/ou de cisaillement subie(s) par la vis | |
CA1299349C (fr) | Procede et dispositif pour effectuer le vissage d'un joint filete pour tube muni d'une butee | |
EP3040163B1 (fr) | Procede de controle d'une emprise de filets complets lors d'un serrage d'un assemblage | |
FR2751077A1 (fr) | Procede et dispositif pour tester des tournevis | |
FR3043351A1 (fr) | Procede et dispositif de controle du serrage d'un assemblage par une fixation filetee | |
EP2918856B1 (fr) | Rondelle destinée à être mise en oeuvre dans un assemblage vissé et procédé d'assemblage mettant en oeuvre la rondelle | |
FR2972255A1 (fr) | Methode et dispositif de serrage d'un ensemble visse | |
EP2384970A1 (fr) | Système de commande d'organe de vol, dispositif de commande de vol incluant un tel système, et utilisation d'un tel système | |
FR3008147A1 (fr) | Dispositif de serrage d'ecrou | |
FR3071287B1 (fr) | Systeme de fixation a precontrainte calibree | |
FR3106634A1 (fr) | Ecrou comprenant au moins une jauge de déformation, boulon comportant au moins un tel écrou et dispositif de mesure d’une précharge exercée par un tel boulon | |
FR2723197A1 (fr) | Elements de boulonnerie equipes d'un dispositif de reglage initial et de surveillance a posteriori de l'allongement | |
FR3037139A1 (fr) | Procede de serrage et de controle du serrage de boulons d'assemblage par tendeur hydraulique a instrumentation integree avec mise en oeuvre par module electronique de traitement et de calcul | |
FR3056746A1 (fr) | Systeme de mesure par ultrasons de la tension d'une tige | |
WO2024038235A1 (fr) | Vis d'assemblage instrumentee | |
FR3001801A1 (fr) | Dispositif de mesure simultanee d'une force axiale exercee par une vis et du couple de vissage associe | |
FR2914062A1 (fr) | Systeme et procede de mesure de la tension d'une vis serree dans un assemblage mecanique. | |
FR2808328A1 (fr) | Dispositif de controle de l'etancheite du systeme de fermeture d'un appareil a pression | |
FR2938615A1 (fr) | Reperes angulaires de serrage pour liaisons boulonnees | |
FR3120552A1 (fr) | Methode pour controler la qualite de l’installation d’une fixation aveugle | |
FR3005731A1 (fr) | Capteur de choc destructif | |
FR2891049A1 (fr) | Procede de determination de parametres de vissage |
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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
17P | Request for examination filed |
Effective date: 20050202 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SNECMA |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: MICHELI & CIE INGENIEURS-CONSEILS |
|
REF | Corresponds to: |
Ref document number: 602004000304 Country of ref document: DE Date of ref document: 20060330 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060404 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060404 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060309 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060605 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2255038 Country of ref document: ES Kind code of ref document: T3 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
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 |
Effective date: 20061005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060705 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060104 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CD Owner name: SAFRAN AIRCRAFT ENGINES Effective date: 20170719 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 602004000304 Country of ref document: DE Representative=s name: CBDL PATENTANWAELTE GBR, DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230222 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20230222 Year of fee payment: 20 Ref country code: IT Payment date: 20230221 Year of fee payment: 20 Ref country code: GB Payment date: 20230222 Year of fee payment: 20 Ref country code: DE Payment date: 20230221 Year of fee payment: 20 Ref country code: BE Payment date: 20230221 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20230403 Year of fee payment: 20 Ref country code: CH Payment date: 20230402 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 602004000304 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MK Effective date: 20240305 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20240326 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20240304 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20240306 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20240306 Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20240304 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |