EP0227870A1 - Machine à commande automatique à rouler les tôles - Google Patents

Machine à commande automatique à rouler les tôles Download PDF

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Publication number
EP0227870A1
EP0227870A1 EP85402653A EP85402653A EP0227870A1 EP 0227870 A1 EP0227870 A1 EP 0227870A1 EP 85402653 A EP85402653 A EP 85402653A EP 85402653 A EP85402653 A EP 85402653A EP 0227870 A1 EP0227870 A1 EP 0227870A1
Authority
EP
European Patent Office
Prior art keywords
rollers
sheet
computer
rolling
radius
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.)
Withdrawn
Application number
EP85402653A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jean Berne
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.)
NOUVELLE DES ATELIERS ET CHANTIERS DU HAVRE Ste
Original Assignee
NOUVELLE DES ATELIERS ET CHANTIERS DU HAVRE Ste
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 NOUVELLE DES ATELIERS ET CHANTIERS DU HAVRE Ste filed Critical NOUVELLE DES ATELIERS ET CHANTIERS DU HAVRE Ste
Priority to EP85402653A priority Critical patent/EP0227870A1/fr
Priority to DE198585402653T priority patent/DE227870T1/de
Priority to ES8603617A priority patent/ES2004020A6/es
Priority to NO865334A priority patent/NO865334L/no
Priority to US06/947,719 priority patent/US4796449A/en
Priority to JP62000088A priority patent/JPS62220222A/ja
Publication of EP0227870A1 publication Critical patent/EP0227870A1/fr
Withdrawn legal-status Critical Current

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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers

Definitions

  • rollers Two of the rollers, called central rollers, are located in a vertical plane and pinch the sheet metal to be rolled with an effort that can be metered.
  • One of these rollers is movable relative to the other in the vertical plane by means of two jacks which move it so that the generatrices of the upper and lower rollers are parallel.
  • the hydraulic supply pressure of the cylinders can vary and allows the metering of the clamping force. This arrangement constitutes the equivalent of recessing on the sheet.
  • pinching allows the sheet metal to be driven along its length and in the horizontal plane by friction, the two lower and upper central rollers being equipped with a means of rotation, for example an electric, hydraulic or other motor.
  • Two other rollers are arranged symmetrically on either side of the central rollers. They are movable in an oblique direction relative to the plane passing through the axes of the two central rollers.
  • Two groups of hydraulic cylinders are hitched each by means of lateral rollers and make it possible to position them in space separately at altitude relative to the pair of central rollers.
  • the frame is equipped with a lateral tilting bearing articulated around an operating axis by a jack.
  • This set of tilting bearings is located in the axis of a frame and allows the sliding bearing to be released from the upper central roller so as to be able to serve, in all of the above four rollers, a fully closed rolled sheet.
  • the object of the present invention is therefore to make the control of the machine practically automatic so that, from the digital data, one obtains parts machined correctly, whatever the defects of the material and whatever the desired shape can be cylindrical or frustoconical, of the sheet thus worked.
  • the machine with automatic control for rolling the sheets comprising at least two suitably driven central rollers, adjustable in height and able to be moved axially to allow the finished object to be released is characterized in that in combination with these central rollers are placed, in a manner known per se, lateral rollers which can be positioned in space using cylinders, this positioning being permanently recorded by sensors working in connection with a computer and probes constituted by cylinders each rod of which is provided, at its upper part, with rollers so as to obtain the position of these probes by means of digital or analog sensors giving information compared with the instructions coming from the computer in order to correctly position the lateral rollers for rolling the sheet metal at the radius provided within a given tolerance, to calibrate the defects inherent in the sheet metal at a given value o u roll cones if necessary.
  • one of the central rollers (lower roller) is mounted in bearings which can slide vertically under the action of jacks to obtain a constant and uniform force from the instructions produced by the computer.
  • fig. 1 which is a very schematic partial section along the line I-I of FIG. 2, there is shown the two central rollers 1, 2, the roller 1 said upper and the roller 2 said lower.
  • the upper roller 1 is mounted in bearings 3, 4 which are integral with the frame, not shown, of the machine and calculated so as to withstand the forces to which the upper roller is subjected voluntarily.
  • the upper roller is mounted on a drive shaft 6, the ends of which rest in the bearings 3 and 4.
  • one of the ends of the drive shaft 6 carries a member 7 for connecting the shaft 6 to a motor element.
  • the lower roller 2 rests, via the shaft 8, in bearings 9, 10 which are supported by the rods 11, 12 of the double-acting cylinders 13, 14 secured to the frame of the machine.
  • bearings 9, 10 and of the shaft 8 it is possible to use, vertically by means of the bearings 9, 10 and of the shaft 8, the lower roller 2.
  • a double-acting cylinder 15 placed on the lateral side of the machine frame and articulated on it, has an axis 16 which allows, by its cylinder rod 15 a , to move, using an axis 17, the bearing 3 so as to release the upper roller 1 and bring it into a position allowing extraction when the work passes are finished in the ring produced using the sheet 20.
  • the machine also has and as shown in fig. 1 two side rollers 21, 22 which are arranged symmetrically on either side of the central rollers 1, 2.
  • the side rollers 21, 22 are movable in an oblique direction relative to the plane presented by the axes of the two central rollers like this is perfectly visible in fig. 1.
  • Two pairs of hydraulic cylinders 23, 24 (only one of the cylinders of each pair is shown in fig. 1) each coupled to the bearing of one of the lateral rollers 21, 22 allow these rollers to be positioned in parallel with respect to the torque of the central rollers 1, 2.
  • the set of four rollers 1, 2, 21, 22 is, as already indicated, inscribed in an upper frame, part 25 of which is shown in FIG. 2, this support frame being equipped with the slides necessary for the movement of the rollers 1, 2, 21, 22 under the effect of the jacks 13, 14, 23, 24.
  • this frame is, moreover, equipped with a tilting bearing 3 (see fig. 1) articulated around an axis 25 and maneuvered by the double-acting cylinder 15.
  • This set of tilting bearings is located in the axis of the frame, it allows to release the sliding bearing 6 is accommodated in the pivot bearing 3 of the upper roll 1 in order to go out of all the central rollers 1, 2, a rolled sheet metal, completely closed.
  • the double-acting cylinder 5 of the bearing 4 fixed to the one end 5a to the frame of the machine allows to tilt the entire upper central roller 1 about an axis 26 shown schematically in fig. 2, in order to facilitate the release operation of a closed rolled sheet, after the bearing 3 has been tilted by the jack 15.
  • the end bearings of each of the central rollers 1, 2 are sliding and fitted with ball joints, this which optionally allows them to tilt relative to the horizontal.
  • the pinched sheet 20 between the central rollers 1, 2 is folded by means of any of the side rollers 21, 22 which are pushed by the pairs of jacks 23, 24.
  • the pushing force F1 (see fig. 1) lateral rollers used, in this case the roller 21, generated by means of these actuating cylinders creates a bending moment whose value is Fxd and therefore folds the sheet 20 to the embedding of the central rollers 1,2.
  • the opposite rotation of the two central rollers 1,2 which pinch the sheet 20 drives the sheet in a determined direction.
  • the originality of the proposed automatically controlled rolling system consists in using probes 30 a , 30 b fixed on the frame not shown and located on either side of the lower central roller 2 for example between this central roller 2 and the rollers side 21, 22. It is of course possible to use several probes 30 a and 30 b arranged along the width of the sheet to be rolled.
  • the contact force of the rollers 33, 34 on the sheet 20 is calculated so that the resulting deformation of the sheet is negligible (a few kilos).
  • the first rolling pass is carried out with a position X1 of fixed side roller 21 corresponding to a given radius R1, this radius being larger than the final radius R r to be obtained.
  • the probes 30 a , 30 b are then deleted.
  • the lateral roller used is released so as to release the curved sheet metal, the latter however remaining pinched between the central rollers 1, 2.
  • the two feelers 30 a and 30 b are then brought into contact with the outer face of the sheet, and it is scrolled by means of drive motors 7, 14.
  • R t Just as at any position X of the lateral roller corresponds to a theoretical radius R t , to any dimension z of the probe corresponds to a radius R r real (since the sheet 20 is no longer subjected to stress). Under these conditions, the value of the instantaneous bending radius R i is recorded over the entire length of the sheet.
  • the deviations of R i from the controlled bending radius are calculated from their measurement and stored and will be used in the future pass to control the position x2 of the (or) side rollers 21 and 22 so as to reduce or eliminate the geometry deviations recorded.
  • a new position x2 of the lateral roller considered is therefore determined to obtain a new theoretical radius R2, ⁇ R1.
  • the deviations corresponding to the values memorized during the first pass by means of the sensors, weighted by a certain coefficient, are added at any time while the sheet is running, at the value of x2 thus established.
  • the second pass is performed by controlling the position of the lateral roller and a new reading of the real profile is made by the sensors.
  • the instantaneous deviations are again recorded which will serve to correct the position of the roller during the third pass and so on until the final radius is obtained.
  • the pinching force depends on the thickness of the sheet to be rolled, its width and the quality of the steel.
  • the proposed machine therefore includes a servo of the pinching force carried out in the following manner.
  • the movable lower central roller 2 is equipped with two jacks 13 and 14. Each section of jacks subjected to the pressure is equipped with a pressure sensor 61 a , 61 b (see fig. 2).
  • the latter establishes from simple relations a pressure set point P o , image of the pinching force. This setpoint is compared to the actual pressure P r measured by the sensor 61 a or 61 b.
  • One of the jacks can also receive an additional external instruction 70 which allows for example to straighten a sheet which would have been rolled in a cone or left. This additional setpoint makes it possible to modify the pressure of the circuit in question more or less than the calculated pressure.
  • This machine can also roll cones by tilting the lateral bending roller with respect to the horizontal.
  • the position setpoints x n imposed on each cylinder of the same roller are different, and result from a simple mathematical calculation established according to the geometric data of the machine and solved by the computer.
  • a manual control modifying one of the two set points x n of position of the two control cylinders of the same roller also makes it possible to produce cones by the operator independently of the computer (arrows F10 and F11 - Fig. 3).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)
  • Press Drives And Press Lines (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Eye Examination Apparatus (AREA)
EP85402653A 1985-12-30 1985-12-30 Machine à commande automatique à rouler les tôles Withdrawn EP0227870A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP85402653A EP0227870A1 (fr) 1985-12-30 1985-12-30 Machine à commande automatique à rouler les tôles
DE198585402653T DE227870T1 (de) 1985-12-30 1985-12-30 Maschine zum rundbiegen von blechen mit automatischer steuerung.
ES8603617A ES2004020A6 (es) 1985-12-30 1986-12-29 Maquina para curvar chapas provista de control automatico
NO865334A NO865334L (no) 1985-12-30 1986-12-30 Maskin til krumning av blikk.
US06/947,719 US4796449A (en) 1985-12-30 1986-12-30 Automatically controlled machine for rolling metal sheets
JP62000088A JPS62220222A (ja) 1985-12-30 1987-01-05 金属シ−トの自動制御型ロ−ル機械

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85402653A EP0227870A1 (fr) 1985-12-30 1985-12-30 Machine à commande automatique à rouler les tôles

Publications (1)

Publication Number Publication Date
EP0227870A1 true EP0227870A1 (fr) 1987-07-08

Family

ID=8194568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402653A Withdrawn EP0227870A1 (fr) 1985-12-30 1985-12-30 Machine à commande automatique à rouler les tôles

Country Status (6)

Country Link
US (1) US4796449A (ja)
EP (1) EP0227870A1 (ja)
JP (1) JPS62220222A (ja)
DE (1) DE227870T1 (ja)
ES (1) ES2004020A6 (ja)
NO (1) NO865334L (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620059A1 (fr) * 1987-09-05 1989-03-10 Sotralentz Sa Procede de fabrication d'un cylindre a partir d'un flan de tole d'acier allonge
GR890100661A (en) * 1988-10-17 1990-11-29 Zeman Bauelemente Prod Gmbh Method and arrangement for the metallic sheets profile rolling
EP3502816A1 (fr) * 2017-12-22 2019-06-26 Amb Picot Procédé de réglage d'une rouleuse à trois rouleaux
CN111673390A (zh) * 2019-08-26 2020-09-18 杭州优固光电有限公司 一种操作简单的led路灯灯杆加工工艺

Families Citing this family (26)

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Publication number Priority date Publication date Assignee Title
US5752705A (en) * 1988-12-01 1998-05-19 Ae Piston Products Limited Piston rings
JPH02299722A (ja) * 1989-05-15 1990-12-12 Makoto Murata 押し通し曲げ加工方法及び同方法による曲げ加工装置
US5036688A (en) * 1989-12-18 1991-08-06 Quality Trailer Products Corporation Fender forming system
US5055752A (en) * 1990-04-20 1991-10-08 United Technologies Corporation Method for machining airfoils
DE69108497T2 (de) * 1990-09-28 1995-12-14 Promau Srl Programmierbare Blechbiegemaschine.
JPH09242U (ja) * 1996-11-29 1997-05-02 シャープ株式会社 用紙搬送装置
TW449509B (en) * 1998-11-04 2001-08-11 Kawasaki Steel Co Bending rolls, and pipe formed thereby
US6655182B2 (en) 2001-05-18 2003-12-02 Lindab Ab Apparatus and method for reshaping tubes
SE521361C2 (sv) * 2001-05-18 2003-10-28 Lindab Ab Anordning, förfarande, rullenhet samt användning av rullanordning för omformning av ett rör
JP3580303B2 (ja) * 2002-08-30 2004-10-20 日産自動車株式会社 無端金属ベルトの製造方法および製造装置
US7882718B2 (en) * 2005-06-13 2011-02-08 Shape Corp. Roll-former apparatus with rapid-adjust sweep box
US7337642B2 (en) * 2005-06-13 2008-03-04 Shape Corporation Roll-former apparatus with rapid-adjust sweep box
CN100424468C (zh) * 2005-12-30 2008-10-08 上海船舶工艺研究所 一种用于数控肋骨冷弯机的测量装置及其测量方法
WO2008134295A1 (en) * 2007-04-27 2008-11-06 Tyco Healthcare Group Lp Apparatus and method for curving surgical needles
ITRM20080078A1 (it) * 2008-02-12 2009-08-13 Cml Intarnational S P A Metodo di verifica e comando per curvare in modo continuo un pezzo allungato secondo raggi di curcatura variabili e macchina cosi' comandata
US8333096B2 (en) * 2009-09-21 2012-12-18 Shape Corp. Method of forming three-dimensional multi-plane beam
CN101758119B (zh) * 2009-11-10 2012-03-21 佛山市禅城区永恒液压机械有限公司 多缸组合型材冷弯自动成型装备的加工方法
CN101985140B (zh) * 2010-11-05 2012-07-18 安阳艾尔旺新能源环境有限公司 圆形沿口型材的弯曲成型方法和装置
US9452464B2 (en) * 2011-07-06 2016-09-27 Federal-Mogul Corporation Method of forming a tubular member
ITTO20120710A1 (it) * 2012-08-07 2014-02-08 Mauro Meliga Macchina curvatrice per la curvatura di profilati, lamiere e simili
RU2536734C1 (ru) * 2013-05-13 2014-12-27 Валерий Владимирович Бодров Гидропривод передней головки правильно-растяжной машины
CN103934320B (zh) * 2014-03-20 2016-08-17 上海交通大学 一种薄壁柱面构件柔性滚弯成形边波控制的方法
CN105618512A (zh) * 2014-11-25 2016-06-01 无锡市恒盛电机有限公司 带多点夹持检测的分段式钣金折弯加工装置
US10646909B2 (en) * 2016-11-11 2020-05-12 Mega Manufacturing, Inc. Plate roll bending machine with roll position feedback contained within roll positioning cylinder
DE102018126336B4 (de) * 2018-10-23 2021-09-16 Häusler Holding Ag Verfahren zur Steuerung einer Biegemaschine, Steuerung zum Ansteuern einer Biegemaschine und Biegemaschine
CN113953838A (zh) * 2021-11-19 2022-01-21 山东宏力异型钢管有限公司 一种生产线末端组装式型材加工设备

Citations (5)

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Publication number Priority date Publication date Assignee Title
GB1099982A (en) * 1964-02-15 1968-01-17 Hitachi Shipbuilding Eng Co A plate-bending roll device for steel plates and the like
DE2247061A1 (de) * 1971-10-01 1973-04-05 Verrina Spa Blechrundbiegemaschine
US3955389A (en) * 1974-10-15 1976-05-11 The Boeing Company Springback compensated continuous roll forming machines
DE2610596B1 (de) * 1976-01-29 1977-02-17 Haeusler Ag Chr Vierwalzen-rundbiegemaschine fuer bleche
DE3041212A1 (de) * 1980-11-03 1982-05-13 August Wilhelm 5901 Wilnsdorf Schäfer Vorrichtung zum biegen, insbesondere runden von blechen oder profilen

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US173689A (en) * 1876-02-15 Improvement in machines for bending metal plates
US2335028A (en) * 1942-05-05 1943-11-23 Bardwell & Mcalister Pinch type bending roll
US2706513A (en) * 1951-01-29 1955-04-19 Neil Irwin Mfg Company O Sheet metal forming device
US3854215A (en) * 1973-07-27 1974-12-17 Boeing Co Multiplanar sensor and control system for use in roll forming machines
US3906765A (en) * 1974-11-20 1975-09-23 Boeing Co Numerically controlled contour forming machine
US4047411A (en) * 1977-01-03 1977-09-13 The Boeing Company Numerically controlled pyramid roll forming machine
US4117702A (en) * 1977-06-06 1978-10-03 The Boeing Company Rolling machines for contouring tapered structural members
DE3519382C2 (de) * 1984-05-30 1995-07-27 Mitsubishi Electric Corp Mehrwalzenbiegevorrichtung
GB8428996D0 (en) * 1984-11-16 1984-12-27 Caledonian Mining Co Ltd Strip bending

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1099982A (en) * 1964-02-15 1968-01-17 Hitachi Shipbuilding Eng Co A plate-bending roll device for steel plates and the like
DE2247061A1 (de) * 1971-10-01 1973-04-05 Verrina Spa Blechrundbiegemaschine
US3955389A (en) * 1974-10-15 1976-05-11 The Boeing Company Springback compensated continuous roll forming machines
DE2610596B1 (de) * 1976-01-29 1977-02-17 Haeusler Ag Chr Vierwalzen-rundbiegemaschine fuer bleche
DE3041212A1 (de) * 1980-11-03 1982-05-13 August Wilhelm 5901 Wilnsdorf Schäfer Vorrichtung zum biegen, insbesondere runden von blechen oder profilen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620059A1 (fr) * 1987-09-05 1989-03-10 Sotralentz Sa Procede de fabrication d'un cylindre a partir d'un flan de tole d'acier allonge
GR890100661A (en) * 1988-10-17 1990-11-29 Zeman Bauelemente Prod Gmbh Method and arrangement for the metallic sheets profile rolling
EP3502816A1 (fr) * 2017-12-22 2019-06-26 Amb Picot Procédé de réglage d'une rouleuse à trois rouleaux
FR3075670A1 (fr) * 2017-12-22 2019-06-28 Amb Picot Procede de reglage d'une rouleuse a trois rouleaux
CN111673390A (zh) * 2019-08-26 2020-09-18 杭州优固光电有限公司 一种操作简单的led路灯灯杆加工工艺
CN111673390B (zh) * 2019-08-26 2021-08-17 杭州优固光电有限公司 一种操作简单的led路灯灯杆加工工艺

Also Published As

Publication number Publication date
NO865334L (no) 1987-07-01
JPS62220222A (ja) 1987-09-28
US4796449A (en) 1989-01-10
ES2004020A6 (es) 1988-12-01
DE227870T1 (de) 1987-11-05

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