EP1103349B1 - Outil de pressage et méthode de commande dudit outil - Google Patents

Outil de pressage et méthode de commande dudit outil Download PDF

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Publication number
EP1103349B1
EP1103349B1 EP00810910A EP00810910A EP1103349B1 EP 1103349 B1 EP1103349 B1 EP 1103349B1 EP 00810910 A EP00810910 A EP 00810910A EP 00810910 A EP00810910 A EP 00810910A EP 1103349 B1 EP1103349 B1 EP 1103349B1
Authority
EP
European Patent Office
Prior art keywords
pressing
sensor
piston
value
displacement
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
EP00810910A
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German (de)
English (en)
Other versions
EP1103349B2 (fr
EP1103349A2 (fr
EP1103349A3 (fr
Inventor
René Amherd
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.)
Von Arx AG
Original Assignee
Von Arx AG
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Filing date
Publication date
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Application filed by Von Arx AG filed Critical Von Arx AG
Publication of EP1103349A2 publication Critical patent/EP1103349A2/fr
Publication of EP1103349A3 publication Critical patent/EP1103349A3/fr
Application granted granted Critical
Publication of EP1103349B1 publication Critical patent/EP1103349B1/fr
Publication of EP1103349B2 publication Critical patent/EP1103349B2/fr
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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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H01R43/0428—Power-driven hand crimping tools

Definitions

  • the present invention relates to a method for Control of an electrically operated press tool for pressing coupling elements with a pair of pliers.
  • the invention further relates to a pressing tool device with which the method according to the invention can be carried out.
  • Press tool devices of the type mentioned at the beginning become Pressing coupling elements, such as press sleeves, press fittings, Pipe sleeves, nested pipe sections and the like.
  • the press tool devices have a Clamping pliers with jaws, which a press room for Form the receptacle of the coupling element to be pressed.
  • the the pressing pressure required for the pressing is carried out by a, in general hydraulic, drive supplied.
  • Press tool devices are working tools that have an increased Have an accident risk. There are already several work accidents Occurred where the clamp is uncontrolled was thrown away and the fork-shaped receptacle spread and was deformed.
  • EP-A-0'941'813 also shows a press tool from of interest here.
  • both the mechanical as well as the electrical detection of the Clamping pliers is problematic. So here was a contactless one Data transmission from the clamp to the pressing tool made contactless by magnets in the clamp interact with detection sensors on the press tool.
  • the invention provides a pressing tool device, which according to the method according to the invention works.
  • the pressing tool device 1 consists essentially of an electro-hydraulic device that has a pistol shape is.
  • the device has a housing 3 with a handle 4.
  • Am Handle 4 is the trigger switch 5, via which a Pressing process is triggered.
  • the housed in the housing 3 Electromotive drive 6 acts on a gear 7 a hydraulic pump 8, which hydraulic oil from a Presses the storage space into the cylinder and thus moves the piston.
  • the piston / cylinder unit is designated 10 in total. It comprises the cylinder 11 and the piston movable therein 12.
  • a piston rod 13 engages the piston 12, which passes through a two-part bearing 14 is passed through.
  • On that End 12 opposite piston is on piston rod 13 a roll holder 15 is arranged.
  • the roll holder 15 has the Shape of a yoke in which two rollers 16 are mounted.
  • the extension of the cylinder housing 11 is in the Milled in the longitudinal direction and thus forms two cheeks 17, which form the fork-shaped receptacle 20. Transversely to the longitudinal direction the cheeks 17 becomes the fork-shaped receptacle 20 of one Safety bolt 18 passes through. Through a monitoring sensor 19 the correct position of the safety bolt 18 supervised. This securing bolt 18 passes through the bearing plates or a connecting strap of the clamp pliers 2. To The clamp pliers 2 must be replaced in each case Safety bolts 18 are removed.
  • one of the two cheeks 17 of the fork-shaped receptacle 20 one Recess 27 attached in which a determining the stroke Sensor 28 is arranged.
  • This can be one Magnetic sensor, a magnetoresistive angle sensor, a Act a displacement sensor or a Hall sensor.
  • a distance sensor that works with a Magnetic strip 29, which is fastened on the roll holder 15, is in a corresponding operative connection.
  • At the Magnetic stripe is a small plate, which in dense arrangement alternately stripes in plus and Minus poles is divided.
  • the roll holder 15 moves and thus the one on it located magnetic strips 29 below the sensor 28, the receives counts corresponding to the changing poles.
  • the number of counting pulses determined is direct proportional to the stroke of the piston 12 or Roll holder 15.
  • the constant stroke of the constant Closing movement of the clamp which results in a constant compression leads.
  • magnetoresistive angle sensor When using a magnetoresistive angle sensor can this can be accommodated in the cylinder seal through which the piston rod 13 is passed through.
  • the piston rod can then be provided with magnetized areas, wherein the directions of magnetization are different.
  • the magnetoresistive angle sensor detects a vector that corresponds to an absolute position of the piston rod. This preferred embodiment includes a destruction in the Jaw replacement completely out.
  • the number determined when the pliers were first closed Signals are supplied to an electronics system, which at 30 im Housing 3 is housed.
  • the electronic circuit contains a data memory, a comparator and possibly further conventional means, on the one hand, to increase the target path value save and below and / or above Enter tolerance ranges and an arithmetic unit, which the actual path values determined with the specified target path value compares and checks whether the actual travel value within the so specified tolerance range.
  • the determined target path value a Relative value that depends on the type of clamp and even from every single clamp, as such Clamping pliers also show wear, reducing tolerance would practically always get bigger.
  • Clamping pliers can either be replaced earlier or readjusted. Every time the clamp is used again due to the above-mentioned empty opening, the real one Closing travel determined and newly recorded as the target travel value. Because neither mechanical scanning elements on the clamp still electronic data transmission elements required the entire system is extremely insensitive in everyday use and all suitable clamp pliers can be used and monitored.
  • FIG. 1 A second embodiment is shown in FIG. The second embodiment differs from that first described embodiment only in relation to the Arrangement of the sensor and the type of sensor.
  • cylinder head 9 is a hollow cylindrical pin 31 arranged.
  • This pin 31 which is permanently supported in the cylinder head 9 protrudes into the piston 12 and the piston rod 13 into one Blind hole.
  • the corresponding blind hole 32 is so large in diameter that the pin 31 in it can protrude without contact.
  • an enlarged bore 33 arranged in the magnetic ring 34 is kept fixed.
  • the hollow pin 31 is a straight or arranged wound wire attached, which at the Movement along the magnetic ring 34 induces a signal, which in turn is connected to the electronic at 30 Circuit is evaluated.
  • the signal proportional to the stroke of the piston The evaluation of the Signals occur exactly the same as the one described above Solution.
  • the clamping pliers determine the Desired stroke and the corresponding tolerances can be found in program the circuit from the manufacturer. The user has no access to setpoint tolerance setting.
  • Control system for monitoring the clamping pliers does not have regulated the pressure.
  • the hydraulic pressure is subject to considerable Fluctuations that are dependent on external influences, which are hardly considered.
  • the Viscosity is an essential parameter.
  • the viscosity the hydraulic oil also depends on the temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Automatic Assembly (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Surgical Instruments (AREA)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Gripping On Spindles (AREA)

Claims (8)

  1. Procédé de commande d'un outil de pressage (1) à commande électrique pour le pressage d'éléments de couplage avec une pince de serrage (2), dans lequel l'outil de pressage déplace un piston à commande hydraulique (12) jusqu'à atteindre une pression prédéterminée et ferme ainsi la pince de serrage (2), caractérisé en ce qu'avec la pose ou le changement de la pince de serrage (2), la valeur de consigne de la course mémorisée s'éteint et ensuite l'outil de pressage (1, 5) est actionné pour exécuter une opération avec ou sans serrage, dans lequel la course, que le piston (12) accomplit jusqu'à atteindre une valeur de sécurité prédéterminée de la pression, qui se situe au-dessus de la pression de pressage nécessaire, est enregistrée et est comparée comme valeur de course de consigne jusqu'à des tolérances réglables avec chaque valeur de course effective de chaque opération de pressage ultérieure, dans lequel des écarts par rapport à la valeur de course de consigne activent un signal.
  2. Procédé suivant la revendication 1, caractérisé en ce que la valeur de course de consigne mémorisée s'éteint avec la disparition de la tension sur l'outil de pressage (1).
  3. Procédé suivant la revendication 2, caractérisé en ce qu'en cas de descente sous la valeur de course de consigne mémorisée, cette valeur plus basse est reconnue comme erreur de pressage et est signalée par voie optique et/ou acoustique.
  4. Outil de pressage à commande électrique (1) pour la mise en oeuvre du procédé suivant l'une quelconque des revendications 1 à 3, avec une pompe hydraulique (8) à commande électrique, qui agit sur une unité piston-cylindre hydraulique (10), qui est en relation active avec un porte-galets (15), dont les galets (16) roulent sur les mâchoires de serrage (21) d'une pince de serrage (2) et ainsi déplacent celles-ci l'une par rapport à l'autre, et en ce que la pince de serrage (2) est remplaçable et est maintenue avec un boulon de fixation maintenu dans un logement en forme de fourche, dans lequel l'outil comprend un circuit logique ainsi qu'un détecteur, qui détecte la course du piston et qui est en communication de transmission de données avec le circuit logique, caractérisé en ce que le détecteur détectant la course du piston est un détecteur magnétique, un détecteur de champ magnétique, un détecteur de course ou une sonde de Hall ou un capteur rotatif qui, après que la valeur de consigne soit éteinte avec le changement de la pince de serrage, détecte la course d'un premier pressage et la transmet au circuit logique comme nouvelle valeur de consigne.
  5. Outil de pressage suivant la revendication 4, caractérisé en ce que le détecteur détectant la course est disposé dans le logement en forme de fourche et en ce qu'un ruban magnétique est disposé sur une pièce assemblée au piston.
  6. Outil de pressage suivant la revendication 4, caractérisé en ce que le détecteur détectant la course ou un aimant est placé dans une tige cylindrique creuse fixe ouverte, qui pénètre dans le piston et qui est entourée par un aimant ou un détecteur fixé sur le piston ou sur la tige de piston.
  7. Outil de pressage suivant la revendication 6, caractérisé en ce que la pression hydraulique de pressage est appliquée extérieurement sur la tige cylindrique creuse.
  8. Outil de pressage suivant la revendication 4, caractérisé en ce que le détecteur détectant la course est un détecteur magnétorésistif, qui est disposé dans la région des appuis de la tige de piston et qui détecte l'angle de champ magnétique de champs magnétiques disposés sur la tige de piston et le transmet au circuit logique.
EP00810910A 1999-11-24 2000-10-04 Outil de pressage et méthode de commande dudit outil Expired - Lifetime EP1103349B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH214899 1999-11-24
CH214899 1999-11-24

Publications (4)

Publication Number Publication Date
EP1103349A2 EP1103349A2 (fr) 2001-05-30
EP1103349A3 EP1103349A3 (fr) 2002-01-16
EP1103349B1 true EP1103349B1 (fr) 2003-04-23
EP1103349B2 EP1103349B2 (fr) 2006-07-26

Family

ID=4227007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810910A Expired - Lifetime EP1103349B2 (fr) 1999-11-24 2000-10-04 Outil de pressage et méthode de commande dudit outil

Country Status (5)

Country Link
US (1) US6662621B1 (fr)
EP (1) EP1103349B2 (fr)
AT (1) ATE238137T1 (fr)
DE (1) DE50001848D1 (fr)
ES (1) ES2193930T5 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8316685B2 (en) 2008-10-03 2012-11-27 Von Arx Ag Roller holding unit

Families Citing this family (27)

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Publication number Priority date Publication date Assignee Title
US7155955B2 (en) 2001-09-11 2007-01-02 Emerson Electric Co. Crimping assembly
SE0200862D0 (sv) * 2002-03-19 2002-03-19 Attexor Clinch Systems Sa Safety arrangement for an apparatus for carrying out a squeezing type of operation on a mechanical workpiece
US7059166B2 (en) 2002-06-17 2006-06-13 Emerson Electric Co. Method and apparatus for assuring or determining appropriate closure of a crimp assembly
DE20315938U1 (de) * 2003-10-16 2005-02-24 Ipa Produktions- & Vertriebsges. M.B.H. Werkzeug zur Durchführung eines Verbindungsvorganges sowie Haltehülse
ATE376910T1 (de) * 2003-11-20 2007-11-15 Arx Ag Rollenhaltereinheit
WO2006021121A1 (fr) * 2004-08-26 2006-03-02 Von Arx Ag Pistolet a aiguilles
US20080289394A1 (en) * 2007-05-23 2008-11-27 Emerson Electric Co. Compression jaw set with failure mode preventing reuse
DE202008002200U1 (de) 2008-02-15 2009-03-26 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Handgeführtes Pressgerät
CN100591484C (zh) * 2008-07-28 2010-02-24 浙江世进水控股份有限公司 电动液压式钳压装置
CN102120319B (zh) * 2010-01-11 2013-01-02 张家港市创基机械设备制造有限公司 电动压接钳
DE202010015365U1 (de) * 2010-11-11 2012-02-15 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Prüfgerät
CN102480094A (zh) * 2010-11-29 2012-05-30 张家港市创基机械设备制造有限公司 用于压接装置的传动组件
CN102241010B (zh) * 2011-06-30 2012-10-24 苏州百泰柯机械有限公司 自动电动钳
RU2011146116A (ru) * 2011-09-19 2013-05-20 Максимов Консулт Ад Устройство и инструмент для холодного расширения крепежных отверстий
CN102363297A (zh) * 2011-10-09 2012-02-29 苏州百泰柯机械有限公司 一种由冲击扳手驱动的夹紧或剪切作业的工作头
CN102416603B (zh) * 2011-12-15 2013-01-30 苏州百泰柯机械有限公司 一种冲击式电动压接或剪切钳
US9862137B2 (en) 2015-04-20 2018-01-09 Milwaukee Electric Tool Corporation PEX expanding tool
US10000007B2 (en) 2015-06-10 2018-06-19 Milwaukee Electric Tool Corporation PEX expanding tool
US10265758B2 (en) 2016-09-30 2019-04-23 Milwaukee Electric Tool Corporation Power tool
US10847944B2 (en) 2017-05-16 2020-11-24 Elpress Ab Method for monitoring a crimping process
NO344001B1 (en) * 2017-11-29 2019-08-12 Smart Installations As Method for cutting a tubular structure at a drill floor and a cutting tool for carrying out such method
CN108233120B (zh) * 2018-01-03 2020-06-09 安溪县雅池茶业有限公司 一种电源接口
DE102019217816A1 (de) 2018-11-29 2020-06-04 Ridge Tool Company Werkzeugköpfe für scherarbeiten
IT202000002128A1 (it) * 2020-02-04 2021-08-04 Sofca S R L Utensile per il montaggio di fascette stringitubo su un tubo
WO2022032221A1 (fr) 2020-08-07 2022-02-10 Milwaukee Electric Tool Corporation Dispositif de sertissage polyvalent sans matrice
WO2023171496A1 (fr) * 2022-03-11 2023-09-14 株式会社村田製作所 Unité de détection de course de fonctionnement, commutateur de déclenchement et outil électrique
EP4279216A1 (fr) 2022-05-20 2023-11-22 Hilti Aktiengesellschaft Procédé de surveillance d'un processus de compression ou de sertissage

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EP0860222A2 (fr) * 1997-02-21 1998-08-26 NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. Presse et procédé pour le stockage des données de déplacement ou du déplacement résiduel de la presse

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US4936126A (en) * 1988-05-17 1990-06-26 Daiichi Electric Co., Ltd. Press brake with a displacement sensor of electric signal output
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DE29602240U1 (de) * 1996-02-09 1997-06-19 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 41460 Neuss Preßgerät
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Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0860222A2 (fr) * 1997-02-21 1998-08-26 NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. Presse et procédé pour le stockage des données de déplacement ou du déplacement résiduel de la presse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8316685B2 (en) 2008-10-03 2012-11-27 Von Arx Ag Roller holding unit

Also Published As

Publication number Publication date
DE50001848D1 (de) 2003-05-28
ES2193930T5 (es) 2007-04-01
ATE238137T1 (de) 2003-05-15
EP1103349B2 (fr) 2006-07-26
ES2193930T3 (es) 2003-11-16
EP1103349A2 (fr) 2001-05-30
US6662621B1 (en) 2003-12-16
EP1103349A3 (fr) 2002-01-16

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