EP1641576A1 - Procede pour influer sur un processus de cintrage - Google Patents

Procede pour influer sur un processus de cintrage

Info

Publication number
EP1641576A1
EP1641576A1 EP04740890A EP04740890A EP1641576A1 EP 1641576 A1 EP1641576 A1 EP 1641576A1 EP 04740890 A EP04740890 A EP 04740890A EP 04740890 A EP04740890 A EP 04740890A EP 1641576 A1 EP1641576 A1 EP 1641576A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
bending
robot
sensor
actual value
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
EP04740890A
Other languages
German (de)
English (en)
Inventor
Gerhard Rosenberger
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.)
Rosenberger AG
Original Assignee
Rosenberger 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 Rosenberger AG filed Critical Rosenberger AG
Publication of EP1641576A1 publication Critical patent/EP1641576A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths

Definitions

  • the present invention relates to a method for influencing a bending process when bending workpieces, in particular pipes, wires, rod material or semi-finished products, with a bending machine and a measuring device, and a device for carrying out the method.
  • Bending process is an elongated workpiece, such as a tube, a wire or the like. deformed in a bending machine.
  • the workpiece is then manually removed from the bending machine and placed in a measuring device or placed in a measuring machine. There, a sensor is moved manually along a predetermined contour of the actual value relative to the deformed workpiece in order to determine the actual value of individual positions.
  • the bending machine in particular the bending process, is then changed, which relates, for example, to specific bending angles, lengths and twists, in order to make corresponding corrections in the event of deviations from the actual value to the target value.
  • the present invention is therefore based on the object of providing a method and an apparatus for carrying out the method, with which the abovementioned disadvantages are eliminated, and with which a measuring method of a deformed workpiece is to be substantially improved with regard to reliability, speed and apparatus costs.
  • a measuring device near or in the vicinity of a bending machine has at least one sensor or measuring probe. Possibly. the sensor or the measuring probe can be arranged at a distance from a substrate.
  • the workpiece After bending a workpiece in any bending machine, the workpiece is automatically removed from it by means of a robot, in particular a robot arm. The workpiece is then guided along the sensor or the measuring probe by means of the robot, the robot following the movement or the deformed contour of the workpiece, so that the workpiece is always at the same distance from the sensor or the measuring probe. The distance is determined via the sensor or recorded permanently.
  • the workpiece to be bent in the bending machine can be influenced by a corresponding control in the manufacturing process by moving corresponding bending heads, bending disks or the like, not shown, by the bending angle, length and twisting or the like. To obtain a workpiece which is within the tolerance range.
  • the workpiece is transmitted or fed to further processing by means of the robot, or if necessary is handed over to another robot for further processing. Further processing of the workpiece may be possible as further processing, but a transport device or packaging device should also be included.
  • the workpiece is inserted or clamped in a receiving device, which preferably protrudes from the substrate.
  • the workpiece is preferably also inserted by means of the robot or the robot arm.
  • the workpiece can be removed from a bending machine 1 and inserted or firmly clamped in the receiving device.
  • the robot arm or robot moves the finished bent workpiece with an additional measuring probe or sensor and measures the bending angle, length and rotation of the finished workpiece in three dimensions workpiece.
  • the workpiece can be sent for further processing, returned to the bending machine for post-processing or as a scrap be declared. This should also be within the scope of the present invention.
  • FIG. 1 shows a schematically illustrated top view of a device according to the invention for influencing a bending process when bending workpieces;
  • FIG. 2 shows a schematically illustrated further view of the device according to FIG. 1 for influencing the bending process when bending elongated workpieces;
  • Figure 3 is a schematic plan view of another embodiment of the device for
  • FIG. 4 shows a schematically illustrated further view of the device according to FIG. 3 for influencing the bending process when bending elongated workpieces.
  • a device Rx according to the invention has a bending machine 1, in which a workpiece 2 is deformed, in particular bent.
  • the bending machine 1 can be designed as a right and / or left bending machine, as a roller head bending machine, as a meander bending machine 1 or the like.
  • the present invention is not restricted to this.
  • the workpiece 2 which is bent in the bending machine, must after bending with regard to the bending parameters, Bending angle, length and twist are checked.
  • a measuring device 3 is preferably provided near the bending machine 1, which according to the invention has at least one rigid sensor 4 or a measuring probe 5. Sensor 4 and measuring probe 5 are preferably arranged at a distance from a base 10.
  • the workpiece 2 is guided or carried out after the bending or deformation in the bending machine 1 along the at least one sensor 4 or along the at least one measuring probe 5 when the measuring probe 5 is designed as a sensor element, as a U-shaped measuring instrument or even as an annular element.
  • the complete elongated contour of the bent or deformed workpiece 2 is guided along the sensor 4 or the measuring probe 5 via the robot 6 or robot arm 7, and any number of measured values are used over the entire length to determine the bending state of the workpiece 2, in particular for Determination of the actual value of the bent workpiece 2 determined.
  • a device R 3 is shown, in which the robot 6 or robot arm 7 has a sensor 4 or a measuring probe 5 at the end in addition to a gripping device (not shown here), or is associated therewith , A receiving device 11 is provided on the base 10 of the measuring device 3, in which the finished or bent workpiece 2 can be received and clamped.
  • the functioning of the present exemplary embodiment is as follows:
  • the robot 6, in particular its robot arm 7 takes with its gripping device, not shown here, after bending a workpiece 2 from the bending machine 1, places it in the measuring device 11, in which it is firmly clamped. Then the robot 6 or its robot arm 7 travels the contour of the bent workpiece 2 and measures the bending angle, length and rotation of the finished workpiece 2 by means of sensor 4 or measuring probe 5 for absolute actual value determination. These data deviate from the predetermined data or a predetermined one Tolerance range, the workpiece 2 is reworked in the bending machine 1 or handed over to the committee. Furthermore, after checking the bending angle, the length and the rotation of the finished workpiece 2 can be checked by means of one and the same robot 6 or robot arm 7 and then this can be fed to a further processing.
  • a device R 4 is shown in the exemplary embodiment according to FIG. 4, which corresponds approximately to the device according to FIG. R 3 or R 2 .
  • the robot arm 7, controlled by the controller 8 travels the workpiece 2, in particular its curved contour, three-dimensionally in space and determines the actual values relating to the bending angle, length and rotation and compares them with stored target values, after which, depending after the state of the bent workpiece 2, this is transferred to further processing 9 by means of the robot 6 or is put back into the bending machine 1 for reworking.
  • the workpiece 2 is preferably guided over the entire length of the workpiece 2 by means of the robot 6 or its robot arms 7, along the sensor 4 or the measuring probe 5.
  • the bending of workpieces can be influenced in the manufacturing process, so that quality control is permanently possible in the manufacturing process.
  • the workpiece 2 is removed from the measuring device 3 by means of the robot 6 and transmitted to further processing 9.
  • the further processing 9 can be, for example, a conveyor belt, any processing or further processing machine, a packaging machine or the like.
  • the device Ri, R 2 according to the invention can be easily integrated into any manufacturing process and that the deformed workpiece 2 is checked in three levels in the manufacturing process, in that an absolute over the entire length exact actual value determinations follow and on the basis of these actual values and, if necessary, if predetermined and selectable tolerance ranges are exceeded, the bending process of the following part can be influenced, so that an adjustment and readjustment of the bending parameters in the bending machine is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

L'invention concerne un procédé permettant d'influer sur un processus de cintrage lors du cintrage de pièces usinées (2), notamment des tubes, des fils, des matériaux sous forme de tiges ou des produits semi-finis. Il est prévu d'utiliser une machine à cintrer (1) et un dispositif de mesure (3). Selon l'invention, après déformation de la pièce usinée (2) dans la machine à cintrer (1), ladite pièce est guidée le long d'au moins un détecteur (4) ou d'au moins une sonde de mesure (5) pour déterminer la valeur réelle.
EP04740890A 2003-07-09 2004-07-09 Procede pour influer sur un processus de cintrage Pending EP1641576A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003131127 DE10331127A1 (de) 2003-07-09 2003-07-09 Verfahren zur Beeinflussung eines Biegeprozesses
PCT/EP2004/007614 WO2005005072A1 (fr) 2003-07-09 2004-07-09 Procede pour influer sur un processus de cintrage

Publications (1)

Publication Number Publication Date
EP1641576A1 true EP1641576A1 (fr) 2006-04-05

Family

ID=33546946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740890A Pending EP1641576A1 (fr) 2003-07-09 2004-07-09 Procede pour influer sur un processus de cintrage

Country Status (3)

Country Link
EP (1) EP1641576A1 (fr)
DE (1) DE10331127A1 (fr)
WO (1) WO2005005072A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881666B1 (fr) * 2005-02-08 2008-07-25 Jaubjaub Consulting Sarl Procede et unite de cintrage d'un profile rectiligne
ITRM20090430A1 (it) * 2009-08-06 2011-02-07 Cml Int Spa Metodo di misurazione di linghezza di tratti di curva di estradosso o intradosso di un pezzo allungato e relativo strumento di misura
DE102009052296A1 (de) * 2009-11-09 2011-05-19 Rosenberger Ag Vorrichtung zur Positionsbestimmung
IT202100012044A1 (it) * 2021-05-11 2022-11-11 Techmetal S R L Impianto automatizzato per la piegatura/curvatura di elementi a sviluppo sostanzialmente longitudinale e metodo di piegatura/curvatura attuato mediante detto impianto
IT202100017426A1 (it) * 2021-07-01 2023-01-01 Schnell Spa Gruppo di rilevamento della curvatura per elementi oblunghi, in particolare metallici

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459018A (en) * 1966-02-04 1969-08-05 Univ Court Of The Univ Of Glas Method of and apparatus for bending bars
CH572200A5 (fr) * 1973-09-18 1976-01-30 Haeusler Christian Ag
US3955389A (en) * 1974-10-15 1976-05-11 The Boeing Company Springback compensated continuous roll forming machines
DE3519382C2 (de) * 1984-05-30 1995-07-27 Mitsubishi Electric Corp Mehrwalzenbiegevorrichtung
US4732025A (en) * 1987-05-22 1988-03-22 Ap Industries, Inc. Precision bending apparatus and process
DE9414583U1 (de) * 1994-09-09 1995-01-12 Rasi Maschinenbau u. -handels-GmbH, 75428 Illingen Steuereinrichtung für eine Vorrichtung zum dreidimensionalen Biegen eines Biegeteils

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005005072A1 *

Also Published As

Publication number Publication date
WO2005005072A1 (fr) 2005-01-20
DE10331127A1 (de) 2005-01-27

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