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WO2004045787A1 - Appareil pour executer une operation sur une piece mecanique - Google Patents

Appareil pour executer une operation sur une piece mecanique Download PDF

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Publication number
WO2004045787A1
WO2004045787A1 PCT/EP2003/012954 EP0312954W WO2004045787A1 WO 2004045787 A1 WO2004045787 A1 WO 2004045787A1 EP 0312954 W EP0312954 W EP 0312954W WO 2004045787 A1 WO2004045787 A1 WO 2004045787A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
stroke
jaw
carrying
frame
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.)
Ceased
Application number
PCT/EP2003/012954
Other languages
English (en)
Inventor
Olivier Dubugnon
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.)
Bollhoff Attexor SA
Original Assignee
Bollhoff Attexor SA
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 Bollhoff Attexor SA filed Critical Bollhoff Attexor SA
Publication of WO2004045787A1 publication Critical patent/WO2004045787A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes
    • B23K11/31—Electrode holders and actuating devices therefor
    • B23K11/314—Spot welding guns, e.g. mounted on robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes
    • B23K11/31—Electrode holders and actuating devices therefor
    • B23K11/318—Supporting devices for electrode holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/287—Supporting devices for electrode holders

Definitions

  • This invention relates to apparatuses for carrying out operations on a mechanical workpiece e.g. tools or machines for pressing, riveting, clinching, cutting, welding etc.
  • the tools and machines could be of stationary or hand-held type.
  • the power source could be of any type, hydraulic, pneumatic, electric etc.
  • a pair of overlaying metal sheet members are joined together by lancing and forming a part of one member through an unblanked part of the other member. Thereafter a staking procedure is carried out on the lanced and formed part of the one member to an adjacent surface of the other member to secure the members together in overlaying relation.
  • One object of the present invention is to provide a machine for pressing, riveting, clinching, cutting, welding etc. which is fast and efficient and possible to use on work-pieces with different geometries and much larger dimensions than heretofore.
  • the inventive idea takes into consideration the fact that when making one of the above mentioned operations, pressing , clinching, riveting, inserting, cutting etc. the total active force is only needed for a short part of the stroke of the tool. The rest of the stroke is needed for approaching the active parts of the tool to the point of operation.
  • Another object of the invention is to provide a so called work head with a pivoting part for which the locking mechanism has been arranged outside and away from the working zone. This makes it possible to use the work head in very restricted areas.
  • the pivoting part will in this way also be much lighter and the process correspondingly faster.
  • Figure 1 schematically shows an apparatus according to the present invention in open position
  • Figure 2 shows the same tool in closed position ready for the active part of the stroke
  • Figure 3 shows the apparatus according to figures 1 and 2 along two different sections B-B' and A-A'
  • Figure 4 shows a second embodiment of the apparatus according to the invention
  • Figure 5 shows a third embodiment of the apparatus according to the invention
  • Figure 1 schematically shows an apparatus according to the present invention in open position
  • the apparatus generally comprises a C-frame 1 having an upper jaw 2 and a lower jaw 3. Co-operating tool 4, 5 are fixed on these jaws.
  • This assembly is called a work head.
  • Such a work head can be used with any process like clinching, riveting, welding, etc. carried out on a workpiece 6, 7, here illustrated as two superimposed profiled pieces of sheet metal 6, 7.
  • the lower (or upper) jaw is according to the invention provided with a moving part 8 pivoting around a pivot axis 9.
  • a moving part 8 pivoting around a pivot axis 9.
  • a force unit or process actuator 10 is arranged on one of the jaws, here illustrated as the upper jaw 2. It could of course alternatively be fixed to the lower jaw. Two actuators could also be envisaged.
  • the moving jaw 8 is not pivoting around a point close to the centre of gravity for this part.
  • an actuator 11 is arranged between the fixed part of the C-frame and the moving part 8 creating a rotation around the pivoting point 9 when activated.
  • This actuator could be of hydraulic, electric or any other suitable type.
  • a pushing rod 13 is arranged fixed to the moving part 8 by means of a rod axis 12.
  • This pushing rod is offering the advantage of moving the locking pin 14 and the associated mechanism away from the working zone around the tools 4, 5 without making the moving jaw e.g. more heavy.
  • it can be designed in such a way that the deformation of the C-frame, which is always detrimental to the quality of the joints, can be counteracted by the fact that the pushing rod works like a leg of a parallelogram (similar to the design of a racing car suspension).
  • the work head taking into account the stiffness of the lower jaw, the distances between the axis 9 and 12 and the distance between the axis through the tool and the axis 9 the movement of the lower tool can be made parallel to axis through the tools.
  • Figure 3 shows in the section B-B' one embodiment of the arrangement of the locking mechanism.
  • the pushing rod 13 is provided with a guiding slot 15 in which the locking pin 14 is sliding.
  • the locking pin is positioned in front of a through hole 16 in the pushing rod.
  • the locking pin has the form of a piston rod of a hydraulic actuator 17. If this actuator is now actuated the pin will enter the hole and lock the pushing rod and thereby the moving part 8.
  • Other mechanisms as e.g. pneumatic or electric could of course be used.
  • the logic sequence is as follows. Introduce the work piece 6, 7, close the pivoting jaw 8 with the closing actuator 11 until end-of-stroke, then actuate the locking actuator 17, until the locking pin 14 is fully engaged. Then operate the process actuator 10. A series of operations can be made on the work piece if desired. Then retract the locking pin 14 and re-open the pivoting jaw 8, allowing to remove the work piece.
  • Sensors or detectors can be installed for checking each of the moving elements and giving the appropriate signals to controlling the sequence which is current know-how in automation.
  • Figures 4 and 5 show variants with hydraulic locking and active compensation of the displacement due to the flexibility of the C-frame.
  • the end of stroke is arranged on the jaw. More precisely contact surfaces 53, 54 on the fixed and moving parts of the C-frame will in contact define the end of stroke in this case.
  • This arrangement will creates a bending moment on the jaw 3, in such a way that it could compensate the bending moment due to the force applied by the tooling.
  • By calculating the hydraulic cylinder 41 section, the oil pressure, and the distance between the two pin axis 8, 42 of the pivoting part it is possible to compensate the bending moment produced by the tool.
  • the deviation of the C- frame becomes parallel (or approximately parallel ) to the motion of the tooling, thus improving the quality of the process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Feeding Of Workpieces (AREA)
  • Manipulator (AREA)
  • Robotics (AREA)
  • Plasma & Fusion (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

Cette invention se rapporte à un appareil servant à exécuter une opération sur une pièce mécanique et comprenant à cet effet un cadre en C (1) présentant au moins une mâchoire pivotante (8) . Le mouvement de cette mâchoire pivotante (8) peut être bloqué au moyen d'un mécanisme de blocage placé à distance de la zone de travail.
PCT/EP2003/012954 2002-11-20 2003-11-19 Appareil pour executer une operation sur une piece mecanique Ceased WO2004045787A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0203485-8 2002-11-20
SE0203485A SE0203485D0 (sv) 2002-11-20 2002-11-20 An apparatus for carrying out an operation on a mechanical workpiece

Publications (1)

Publication Number Publication Date
WO2004045787A1 true WO2004045787A1 (fr) 2004-06-03

Family

ID=20289670

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/012954 Ceased WO2004045787A1 (fr) 2002-11-20 2003-11-19 Appareil pour executer une operation sur une piece mecanique

Country Status (2)

Country Link
SE (1) SE0203485D0 (fr)
WO (1) WO2004045787A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2452761A3 (fr) * 2010-11-16 2012-06-20 Btm Corporation Pince de rivet
US20120260491A1 (en) * 2009-10-16 2012-10-18 Bollhoff Verbindungstechnik Gmbh Setting device, supply module for the setting device, and a joining method for connecting at least two components
DE102016215450A1 (de) 2016-08-18 2018-02-22 Audi Ag Fügezange
US11235371B2 (en) 2018-10-15 2022-02-01 BTM Company, LLC Clinching machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1412552A (en) * 1921-05-05 1922-04-11 Carlson Alfred Wrench
US4607418A (en) * 1983-11-18 1986-08-26 Hafner Otto P Means for interlocking overlapping sheet material
US5138758A (en) * 1988-02-05 1992-08-18 Luciano Gubbiotti Method for joining two or several overlaying sheet formed members together, metal or non-metal, and apparatus for carrying out the method
US6267026B1 (en) * 1998-03-05 2001-07-31 Tozo Yamamoto Screwdriver for self-drilling screw
WO2002068139A1 (fr) * 2001-02-26 2002-09-06 Attexor Clinch Systems Sa Procede permettant de creer un joint entre des elements en forme de feuille

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1412552A (en) * 1921-05-05 1922-04-11 Carlson Alfred Wrench
US4607418A (en) * 1983-11-18 1986-08-26 Hafner Otto P Means for interlocking overlapping sheet material
US5138758A (en) * 1988-02-05 1992-08-18 Luciano Gubbiotti Method for joining two or several overlaying sheet formed members together, metal or non-metal, and apparatus for carrying out the method
US6267026B1 (en) * 1998-03-05 2001-07-31 Tozo Yamamoto Screwdriver for self-drilling screw
WO2002068139A1 (fr) * 2001-02-26 2002-09-06 Attexor Clinch Systems Sa Procede permettant de creer un joint entre des elements en forme de feuille

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120260491A1 (en) * 2009-10-16 2012-10-18 Bollhoff Verbindungstechnik Gmbh Setting device, supply module for the setting device, and a joining method for connecting at least two components
US9149863B2 (en) * 2009-10-16 2015-10-06 Bollhoff Verbindungstechnik Gmbh Setting device, supply module for the setting device, and a joining method for connecting at least two components
EP2452761A3 (fr) * 2010-11-16 2012-06-20 Btm Corporation Pince de rivet
US9421599B2 (en) 2010-11-16 2016-08-23 Btm Company Llc Clinch clamp
DE102016215450A1 (de) 2016-08-18 2018-02-22 Audi Ag Fügezange
DE102016215450B4 (de) 2016-08-18 2024-02-15 Audi Ag Fügezange
US11235371B2 (en) 2018-10-15 2022-02-01 BTM Company, LLC Clinching machine

Also Published As

Publication number Publication date
SE0203485D0 (sv) 2002-11-20

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