EP4279216A1 - Procédé de surveillance d'un processus de compression ou de sertissage - Google Patents

Procédé de surveillance d'un processus de compression ou de sertissage Download PDF

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Publication number
EP4279216A1
EP4279216A1 EP22174466.7A EP22174466A EP4279216A1 EP 4279216 A1 EP4279216 A1 EP 4279216A1 EP 22174466 A EP22174466 A EP 22174466A EP 4279216 A1 EP4279216 A1 EP 4279216A1
Authority
EP
European Patent Office
Prior art keywords
pressing
tool
crimping
data
work pieces
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.)
Pending
Application number
EP22174466.7A
Other languages
German (de)
English (en)
Inventor
Ganesh Donapudi
Moritz Schweizer
Alhad Peshne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP22174466.7A priority Critical patent/EP4279216A1/fr
Publication of EP4279216A1 publication Critical patent/EP4279216A1/fr
Pending 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0094—Press load monitoring means
    • 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
    • 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
    • H01R43/048—Crimping apparatus or processes
    • H01R43/0486—Crimping apparatus or processes with force measuring means

Definitions

  • the present invention relates to a method for monitoring a pressing or crimping process which includes pressing operation is for joining pipe and fittings by pressing and/or the crimping operation for the electrical cables and connectors by crimping.
  • a pressing tool apparatus and a control method are disclosed.
  • the tool apparatus comprises sensors that are configured to verify that the clamping pincer is moved the correct distance to ensure the desired deformation of the end fitting or coupling when a predetermined pressure is applied.
  • An object of the present invention is to provide a method for monitoring a pressing or crimping process where an end fitting or coupling is secured to a pipe by a pressing tool or a crimping tool, which can then assess if the press or crimp operation was successful or not.
  • a method for monitoring a pressing or crimping process performed on two work pieces, performed with a handheld pressing device comprising:
  • the controller will compare the measured data of the pressing operation collected by the sensor systems to the pre-stored data which have been stored in the memory unit in advanced. If the measured data match with the stored data, the amount of the deviation of measured data from the stored data being close to zero, the pressing operation will be regarded as successful. However, if the measured data have a deviation of high amount from with the stored data, then the pressing operation will be regarded as failed. Deviation from the stored data will help in detecting the success of the crimp or press operation more accurately.
  • the method further comprises the controller further assessing if the operation failure was due to wrong combination of pressing tool/crimping tool, jaws and/or fittings, or if there is any damage to the pressing/crimping tool, jaw or work pieces based on analysing the amount of deviation of the measured data from the stored data.
  • the controller can analyse if there is any damage to the pressing tool or crimping tool, or if there is any damage on the jaw, or there is any damage on the fitting or connector by comparing the measured data with the pre-stored data of a correct operation which is stored in the memory of the tool, or an external device attached to the tool.
  • the method further comprises indicating to a user with an audio and/or visual feedback about the pressing or crimping operation failure.
  • indicating to a user with an audio and/or visual feedback about the pressing or crimping operation failure.
  • the work pieces include a pipe and a fitting.
  • the work pieces include a cable and a connector.
  • the sensor system includes a strain gauge arranged on a head of the pressing tool or crimping tool close to a locking pin of the pressing jaw coupled to the pressing tool or crimping tool.
  • a strain gauge arranged on a head of the pressing tool or crimping tool close to a locking pin of the pressing jaw coupled to the pressing tool or crimping tool.
  • the measured data are strain values or deformation patterns.
  • the method further comprises identifying the pressing devices before the pressing operation by a data collecting element provided with the pressing device.
  • a data collecting element provided with the pressing device.
  • the data collecting element includes a scanner being configured to scan coding means 17, such as NFC tags, RFID tags, bar codes, data matrix codes or any combination thereof on the jaws and/or on the work pieces, in particular the press fitting, the pipe and/or the connectors, in order to identify the jaws used and/or the work pieces.
  • Suitable distinguishing marks are colour marks, special characters or also barcodes or QR codes allow for a simple identification of the jaw and work pieces used. This allows for a simplified identification of the jaw and work pieces used in the pressing application.
  • the data collecting element includes an input unit, being configured to receive the data of the pressing tool or crimping tool input manually by a user.
  • the input unit may in particular be an internal display device to display the data of pressing tool or crimping tool. Storing data of pressing tool in advances allows the user select manullay via the display device at a later time.
  • the data collecting element is provided on an adapter which is configured to be attached to the pressing tool mechanically and/or electronically.
  • the adapter according to the present invention will preferably also be referred to as "external adapter". Using such an external adapter that can be attached to pressing tool or crimping tool can increase the adaptability of a pipe pressing device to different desired specifications in combination with a cost saving flexibility for the tool manufacturer who will be able to offer pressing tools with a wide range of specifications based on just a few basic tool models.
  • the memory unit is also provided on the adapter.
  • the data collecting element collects data specific to the jaws and work pieces, in particular to the pipe and fittings.
  • the data collecting element collects data specific to the jaws and connectors. The data collected are stored in a memory unit and are associated to a defined pressing operation or crimping operation. It is thus possible later to prove the pressing operation or crimping operation and the proper execution thereof.
  • both the identification data collected by the data collecting element and/or the measured data collected by the sensor system are transmitted in a wireless manner, in particular, via WLAN, Bluetooth, IR transmission or radio transmission to an external device by a transmission unit provided on the adapter.
  • This external device may in particular be a laptop computer, a tablet PC or a smart phone.
  • the data from the pressing tool will be transferred to the adapter, which will then tabulate and/or sequence all the information, which can then be read out via a computer or a mobile device. This allows the manufacturer to perform a remote diagnosis. Further, the collected data can thus be stored for safe access so that they may be used as evidence if needed at a later time.
  • the present invention further provides a pipe pressing device is designed to perform the method described above.
  • the pipe device is used for jointing two work pieces, in particular a pipe and a press fitting, by pressing, comprising a pressing tool having a plurality of pressing jaws, wherein one of the pressing jaws coupled to the pressing tool, a drive adapted to drive the coupled pressing jaw to apply a force to the workpieces; a sensor system adapted to measure a data related to the force applied to the workpiece over the full pressing operation cycle; a controller; and a data collecting element.
  • a pipe pressing device is for joining two work pieces, in particular an electronic cable and a connector, by crimping, comprising a crimping tool having a plurality of jaws, wherein one of the jaws coupled to the crimping tool, a drive adapted to drive the coupled jaw to apply a force to the workpieces; a sensor system adapted to measure a data related to the force applied to the workpiece over the full crimping operation cycle; the pipe pressing device is designed to perform the method for monitoring the crimping operation.
  • an adapter is attached to the pressing tool or crimping tool mechanically and/or electronically, wherein the adapter comprises a scanner, a memory unit, an input unit, a controller and a transmitter unit.
  • the handheld pressing device 10 is used for joining two work pieces, in particular a pipe 18 and a press fitting 19, by pressing.
  • the pipe pressing device 10 comprises a pressing tool 11 with a plurality of jaws 12.
  • the pressing tool 11 also includes a converting unit and a drive (not shown).
  • a battery pack 14 is detachably mounted on the pressing tool 11 to supply power to the electric motor.
  • the jaws 12 of the pressing tool 11 are pressed apart at the rear part, i.e. on the side facing the drive. Thereby, the jaws 12 are pivoted about the pivot pins so that the jaws 12 approach each other at the front part, i.e. on the side averted from the drive. Thereby, a compression is achieved. Due to the pressing movement of the pressing tool 11, a press fitting 19 is joined with a pipe 18 by pressing and is thus joined with the same in a reliable and tight manner.
  • a sensor system 13 is provided with the pressing device adapted to measure a data related to the force applied to the workpiece over the basically full pressing operation cycle.
  • the sensor system includes a strain gauge arranged on a head 16 of the pressing tool 11 close to the pivoted pin of the jaw 12 coupled to the pressing tool 11.
  • a strain gauge arranged on a head 16 of the pressing tool 11 close to the pivoted pin of the jaw 12 coupled to the pressing tool 11.
  • an adapter 20 for pressing device for joining two work pieces is provided.
  • the adapter 20 can be mechanically and/or electrically mounted onto between the housing 13 of the pressing tool 11 and the battery pack 14.
  • an external adapter 20 for a pressing device 10 the adapter 20 is easily to be attached to the pipe pressing tool 11, no change in the designs of either the battery pack 14 or the pressing tool 11 is necessary, and thus no additional costs are incurred.
  • the external adapter 20 is adapted to work with various pressing tools on a same platform, which means the interfaces between these pressing tools 11 and battery pack 14 are same.
  • the adapter 20 comprises at least one data collecting element for identifying the data of the jaw 12 and work pieces 15, and a memory unit 24 for storing the collected data.
  • the at least one data collecting element is a scanner 25.
  • the scanner 25 is for reading optical coding means 17 provided on the jaw 12, the end of the pipe 18 and the press fitting 19.
  • the optical coding means 17 may be NFC tags, RFID tags, bar codes, data matrix codes or any of the combination. This allows for a simplified identification of the jaw and work pieces used in the pressing application.
  • the adapter 20 may comprise an input unit 26.
  • the input unit 26 may comprises an internal display device being configured to select the data of the pressing tool 11 which have been stored in the memory unit 24 of the adapter 20 in advance. Prestoring data of pressing tool 11 in advances allows the user select manually via the display device at a later time.
  • the data of the pressing tool 11 can be input by a user, then the data such as, type, name, serial number, last service of the pressing tool 11 used will be collected.
  • the adapter 20 comprises transmission unit 27 adapted to be connected to an external device 29 to transmit the collected data to the external device 29.
  • the information result from the collected data transmitted from the adapter 20 by the transmission unit 27 via Bluetooth.
  • An overview of the collected data of the pressing operations stored in the memory unit 24 is reached via the external device 29. Hence, for each single pressing operation, the data can be well documented and/or read out at any time. It is thus possible at a later time to prove the pressing operation and the proper execution thereof.
  • an internal module comprising a scanner, a memory unit, an input unit, a controller and a transmitter unit is integrated into the pressing tool 11.
  • an internal module can perform the same functions to the external adapter 20.
  • the handheld pressing device 10 is used for joining two work pieces, in particular a connector 30 and a cable 32, by crimping.
  • the pressing device 10 comprises a crimping tool 11' with a plurality of jaws 12. It is well known in the art that crimping tool for joining the electrical cables and connectors while pressing tool is used for joining fitting and pipes. Basically, the difference between a pressing tool and a crimping tool is only internal structures and mechanisms, otherwise the outer appearance could be exactly same.
  • the rest are all same to the first embodiment as described above and shown in fig. 1 that are omitted to repeat here.
  • the present invention further provides a method for monitoring and documenting pressing operations performed on two work pieces.
  • the monitoring method could be performed either in a pressing operation by a pressing tool or in a crimping operation by a crimping tool.
  • the monitor method is basically same with pressing operation and crimping operation. Pressing operation would be taken as an example of the method of the present invention for monitoring and documenting the pressing operation for illustration.
  • the scanner 25 to scan coding means 17, such as NFC tags, RFID tags, bar codes, data matrix codes or any combination thereof on the jaws 12 and/or on the work pieces 15, in particular, the press fitting 19 and the pipe 18, in order to identify the jaw12 and/or the press fitting19 and the pipe 18.
  • the user could input the data of the pressing tool 11 used manually by the input unit 26 provided on the adapter 20 to identify the data of the pressing tool 11 used.
  • the sensor system 13 in particular, a strain gauge measures the strain value or deformation patterns over a basically full pressing operation cycle.
  • the controller 28 will assess if the strain value or deformation patters match the pre-stored data in the memory unit 24. In particular, the controller 28 compares the measured data collected by the sensor system 13 and compare it to the stored data. If the measured data match with the stored data, no deviation of the measured data from the pre-stored data, the pressing operation will be regarded as successful. However, if the measured data have an amount of deviation from with the stored data, the pressing operation will be regarded as having failed.
  • the method further comprises that the controller 28 further assessing if the operation failure was due to wrong combination of the pressing tool 11, jaw 12 or work pieces 15; or if the operation failure was due to damage on the head 16 of the pressing tool11, jaw 12 or fitting 19 based on analysing the amount of deviation of the measured data from the stored data.
  • the controller 28 can analyse if there is any damage on the pressing tool, or if there is any damage on the Jaw 12, or there is any damage to the fitting 19 or connector 30 by comparing the measured data with the pre-stored data of a correct operation which is stored in the memory unit 24 of the adapter 20.
  • the method further comprises indicating to a user with an audio and/or visual feedback about the pressing operation failure.
  • a buzzing or a led indicator is provided on the adapter 20.
  • the adapter 20 may be connected to an external device 29.
  • both the identification data collected by the adapter 20 and/or the measured data collected by the sensor system 13 are transmitted in a wireless manner, in particular via WLAN, Bluetooth, IR transmission or radio transmission to an external device 29.
  • This external device 29 may in particular be a laptop computer, a tablet PC or a smart phone.
  • this offers the advantage of a simple operation, while at the same time enabling a high degree of portability. This allows the manufacturer of the pressing device 10 to perform a remote diagnosis. Further, the collected data can thus be stored for safe access, so that they may be used as evidence if needed at a later time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP22174466.7A 2022-05-20 2022-05-20 Procédé de surveillance d'un processus de compression ou de sertissage Pending EP4279216A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22174466.7A EP4279216A1 (fr) 2022-05-20 2022-05-20 Procédé de surveillance d'un processus de compression ou de sertissage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22174466.7A EP4279216A1 (fr) 2022-05-20 2022-05-20 Procédé de surveillance d'un processus de compression ou de sertissage

Publications (1)

Publication Number Publication Date
EP4279216A1 true EP4279216A1 (fr) 2023-11-22

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EP22174466.7A Pending EP4279216A1 (fr) 2022-05-20 2022-05-20 Procédé de surveillance d'un processus de compression ou de sertissage

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29806179U1 (de) * 1998-04-03 1998-10-08 Connectool GmbH & Co., 32758 Detmold Crimpzange
US6035775A (en) * 1997-02-21 2000-03-14 Novopres Gmbh Pressen Und Presswerkzeuge & Co. Kg Pressing device having a control device adapted to control the pressing device in accordance with a servocontrol system of the control device
US6662621B1 (en) 1999-11-24 2003-12-16 Von Arx Ag Pressing tool apparatus and control method
EP2248632A1 (fr) * 2009-04-16 2010-11-10 Maeda Metal Industries, Ltd. Système radiotélégraphique de transmission et de réception de données
US20130240228A1 (en) * 2012-03-13 2013-09-19 Hubbell Incorporated Crimp Tool Force Monitoring Device
US20150101186A1 (en) * 2011-06-08 2015-04-16 Daniels Manufacturing Corporation Smart Crimp Tool System For Electrical Contacts And Terminals Which Are Controlled And Monitored By A Central Database Manager
US20170057040A1 (en) * 2015-08-27 2017-03-02 Hubbell Incorporated Remotely activated portable hand tool
US10710223B2 (en) * 2015-06-09 2020-07-14 Cembre S.P.A. Portable work equipment for traveling use
US20210379746A1 (en) * 2018-08-01 2021-12-09 Gustav Klauke Gmbh Method for operating a hydraulically actuated work tool
EP3954505A1 (fr) * 2011-07-24 2022-02-16 Makita Corporation Adaptateur pour outils électriques
US11292118B2 (en) * 2018-01-30 2022-04-05 Milwaukee Electric Tool Corporation Power tool

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6035775A (en) * 1997-02-21 2000-03-14 Novopres Gmbh Pressen Und Presswerkzeuge & Co. Kg Pressing device having a control device adapted to control the pressing device in accordance with a servocontrol system of the control device
DE29806179U1 (de) * 1998-04-03 1998-10-08 Connectool GmbH & Co., 32758 Detmold Crimpzange
US6662621B1 (en) 1999-11-24 2003-12-16 Von Arx Ag Pressing tool apparatus and control method
EP2248632A1 (fr) * 2009-04-16 2010-11-10 Maeda Metal Industries, Ltd. Système radiotélégraphique de transmission et de réception de données
US20150101186A1 (en) * 2011-06-08 2015-04-16 Daniels Manufacturing Corporation Smart Crimp Tool System For Electrical Contacts And Terminals Which Are Controlled And Monitored By A Central Database Manager
EP3954505A1 (fr) * 2011-07-24 2022-02-16 Makita Corporation Adaptateur pour outils électriques
US20130240228A1 (en) * 2012-03-13 2013-09-19 Hubbell Incorporated Crimp Tool Force Monitoring Device
US10710223B2 (en) * 2015-06-09 2020-07-14 Cembre S.P.A. Portable work equipment for traveling use
US20170057040A1 (en) * 2015-08-27 2017-03-02 Hubbell Incorporated Remotely activated portable hand tool
US11292118B2 (en) * 2018-01-30 2022-04-05 Milwaukee Electric Tool Corporation Power tool
US20210379746A1 (en) * 2018-08-01 2021-12-09 Gustav Klauke Gmbh Method for operating a hydraulically actuated work tool

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