EP1543892A1 - Dispositif à cintrer des barres, notamment des tuyaux - Google Patents

Dispositif à cintrer des barres, notamment des tuyaux Download PDF

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Publication number
EP1543892A1
EP1543892A1 EP03029513A EP03029513A EP1543892A1 EP 1543892 A1 EP1543892 A1 EP 1543892A1 EP 03029513 A EP03029513 A EP 03029513A EP 03029513 A EP03029513 A EP 03029513A EP 1543892 A1 EP1543892 A1 EP 1543892A1
Authority
EP
European Patent Office
Prior art keywords
bending
stand
drive
machine according
movement
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.)
Granted
Application number
EP03029513A
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German (de)
English (en)
Other versions
EP1543892B1 (fr
Inventor
Udo Peters
Urs Kuehni
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.)
Mewag Maschinenfabrik AG
Original Assignee
Mewag Maschinenfabrik 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 Mewag Maschinenfabrik AG filed Critical Mewag Maschinenfabrik AG
Priority to DE50307038T priority Critical patent/DE50307038D1/de
Priority to EP20030029513 priority patent/EP1543892B1/fr
Publication of EP1543892A1 publication Critical patent/EP1543892A1/fr
Application granted granted Critical
Publication of EP1543892B1 publication Critical patent/EP1543892B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
    • 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
    • B21D7/12—Bending rods, profiles, or tubes with program control

Definitions

  • the invention relates to a bending machine according to the preamble of claim 1.
  • the bending head is pivotable on a vertically arranged 360 ° Attached washer and has a radial slot for insertion of the bending strand on. This pivotable arrangement of the bending head allows a Bend in all directions.
  • a device for bending pipes is known, the Having a bending stand with a rotatably mounted, drivable support disk.
  • the support disc is equipped with a segment-like radial slot for inserting unbent Provided pipes.
  • On the support disc is a bending head with a drivable Bending arm attached.
  • a stationarily arranged on the bending stand motor drives chains Both the support disc and the bending arm on the bending head.
  • a lock that interacts with a brake, necessary.
  • This common Drive for the pivoting movement of the support disc and for the movement of the bending arm requires a variety of deflections of the drive movement with pinions and flexible traction means such as chains and corresponding devices for braking and Locking the support disk movement.
  • this common drive prevents a rapid sequence of the necessary for a bending operation Tragusionn- and Biegearmieri, because between these two movements a blocking of the Support plate is required. Only after completed blocking a movement of the Biegearmes be initiated.
  • Such bending machines therefore work accordingly slow and because of the many deflections of the long flexible traction means little precise. In addition, she needs a lot of maintenance.
  • DE-PS 36 35 169 which forms the preamble of claim 1, is a bending machine for bending tubular strands known as a machine bed as Foundation plate for a strand holding device and one on the machine bed having displaceable bending stand.
  • the bending stand is rotatable with a 360 ° Support disc and attached to the support disc bending head provided.
  • One The first electric motor for the displacement of the bending stand is on the machine bed arranged. This electric motor generated by the displacement of the bending stand the Strand advancing.
  • a second electric motor is arranged on the displaceable bending stand and generates the rotational movement of the support disc by 360 ° together with the Bending head.
  • a third electric motor is connected to the bending head and becomes common pivoted with the support disk and the bending head.
  • the electric motor with a Reducing gear and the bending head and the rotatable support disc together a correspondingly large mass, in each bending operation and at each strand feed accelerated and decelerated again. Furthermore, for the Power supply to the mobile motors arranged cables etc. for a mobile Energy supply necessary. By mounting the second electric motor on the bending stand its displaceable mass is increased. The relatively large to be moved Masses limit the working speed and increase the susceptibility of the Bending machine. The free space in the range of movement of the workpiece is characterized severely limited.
  • a bending head On a horizontally movable stand is a bending head at a 360 ° rotatable vertical support disc attached.
  • Parallel to the support disc on the stand is a Drive disc arranged, which via a bevel gear bending arm of a bending head pivoted and thereby performs a bend on the strand material.
  • Of the Drive for both the support disc and for the bending head is done by two am sliding stand mounted motors with their associated gearboxes.
  • the invention is based on the object to overcome the disadvantages described and in particular, to build a bending machine which provides great flexibility, i. a rapid conversion to other products allowed and a compact relatively light weight Has bending stand.
  • space is created in the area of the bending stand be so for facilities for loading and unloading the bending machine a good accessibility is available.
  • Another objective is the achievement of a high bending cycle number per unit time on the same bending part or in itself Bending parts by reduction of the moving masses and a high bending precision.
  • the ease of maintenance of the machine should be improved.
  • the bending machine according to the invention offers a compact bending stand high flexibility i. a quick conversion to other products. Also the free space in the Area of the bending stand creates additional freedom for the curved product as also optimal accessibility for facilities for loading and unloading. In the further By reducing the moving masses, a high number of cycles of bending operations, even with elongated curved tubes, a high bending precision and a improved serviceability of the machine can be achieved.
  • An advantageous Anodnung the drive units is achieved when this outside of predetermined displacement paths of the bending stand at the end of the machine bed are attached.
  • a reduction of the movement tolerances of the support disk and the bending head are achievable when the sliding on the profile shafts gears with gears one on Bending stand arranged transmission are engaged and the transmission the Drive movement on a drive pulley and from this via gears on the Carrying support plate.
  • a compact design of the bending head and minimal movement masses are achievable if an internal gear wrench the drive movement via a gear on Bending head and a bevel gear transmits to the drive axle for the bending operation.
  • the drive axle for the bending operation carries a gear that with a rack disposed on the bending arm engages and a support rail before the Biegearmverschwenkung by a linear motion leads to the strand.
  • a cam can be arranged on the drive axle for the bending operation which is in contact with a linearly movable scanner and which the Transfers linear motion to a slide rail.
  • the pivoting movement of the bending arm is automatically initiated when the support rail has reached a support position on the tubular strand.
  • FIG.1-3 and 5 1 is a machine bed for a bending machine according to the invention designated.
  • a strand holding device 2 are stationary and a in the direction of the central axis 3 of the unbent strand (not shown) displaceable Bending stand 4 arranged.
  • the illustrated example in Fig. 1-3 shows a Einkopfbiegemaschine.
  • a support disc 5 arranged for a bending head 6.
  • the support plate 5 is about the central axis. 3 of the unbent strand is rotatably mounted through 360 ° and with a radial slot thirteenth provided for introducing the strand.
  • drive units 9, 10 and 11 stationary at the end of Machine bed 1 arranged.
  • the drives in the example shown as electric motors formed, the following drive functions are assigned.
  • the drive 9 can over a ball screw 12 the bending stand 4 along the machine bed 1 in Move direction of arrow 14.
  • the drives 10 and 11 transmit their drive movement on profile shafts 15 and 16 e.g. Waves with a keyway on the Machine bed 1 are stored.
  • Fig. 4 the bending head 6 is shown without bending stand 4 (Fig. 1,2 + 5).
  • the bending head 6 receives its drive movement for the bending operation of the drive disk 19 via a ring gear 28 on a gear 35.
  • the gear 35 is keyed on an axis 24, the drive via bevel gears 25 of the drive axle 26 for the bending operation feeds.
  • a bending tool 37 is clamped.
  • a cam 31 which with a scanner 38 in Contact and a linear movement on a slide 33 (Fig. 5 + 6) transmits.
  • a gear 32 is also arranged, which with a rack 39 is engaged.
  • the rack 39 transmits one shown in Fig. 5 + 6 Support rail 29 a linear movement.
  • the bending head 6 with a pivotable about the drive axis 26 bending arm 27 and the linearly movable in the direction of arrow 30 support rail 29 and provided in the direction of arrow 34 linearly movable slide 33.
  • the bending tool 37 is placed on the drive axle 26.
  • Fig. 7 the operation of the gear 32 and the rack 39 for the linear movement the support rail 29 easily recognizable.
  • the gear 32 transmits at the beginning the bending operation, the rotational movement of the rack 39, the support rail 29th wearing.
  • the support rail 29 is driven against a workpiece, not shown and clamps this in the bending tool 37 (Fig. 4,5,6).
  • About the scanner 38 receives the slide 33 of the cam 31 is a linear movement to the bending tool 37 (Fig. 4,6).
  • the pivoting movement of the bending arm 27 initiated.
  • the bending arm 27 is pivoted back and then the support rail 29 retracted.
  • the workpiece now lies without clamping on the bending tool 37 and the bending stand 4 can in a driven new position and another bending operation can be made on the workpiece become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP20030029513 2003-12-20 2003-12-20 Dispositif à cintrer des barres, notamment des tuyaux Expired - Lifetime EP1543892B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE50307038T DE50307038D1 (de) 2003-12-20 2003-12-20 Biegemaschine zum Biegen von Strängen, insbesondere von rohrförmigen Strängen
EP20030029513 EP1543892B1 (fr) 2003-12-20 2003-12-20 Dispositif à cintrer des barres, notamment des tuyaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030029513 EP1543892B1 (fr) 2003-12-20 2003-12-20 Dispositif à cintrer des barres, notamment des tuyaux

Publications (2)

Publication Number Publication Date
EP1543892A1 true EP1543892A1 (fr) 2005-06-22
EP1543892B1 EP1543892B1 (fr) 2007-04-11

Family

ID=34486282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030029513 Expired - Lifetime EP1543892B1 (fr) 2003-12-20 2003-12-20 Dispositif à cintrer des barres, notamment des tuyaux

Country Status (2)

Country Link
EP (1) EP1543892B1 (fr)
DE (1) DE50307038D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108044378A (zh) * 2018-01-09 2018-05-18 浙江东帆船舶配件有限公司 一种用扁钢加工圆弧形零件加工的装置
CN111451333A (zh) * 2020-04-22 2020-07-28 江西耐乐铜业有限公司 一种内凹齿式热管的成型模具装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE528082T1 (de) 2009-01-16 2011-10-15 Wafios Ag Rotationszugbiegewerkzeug mit exzenterklemmung
DE102009024406B4 (de) 2009-06-09 2013-04-04 Wafios Ag Rotationsbiegewerkzeug mit Exzenterklemmung
CN101961761B (zh) * 2010-11-09 2012-08-08 建科机械（天津）股份有限公司 钢筋自动弯曲机的移动机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121077A2 (fr) * 1983-03-31 1984-10-10 Thomas Peter Lang Machine à cintrer des tubes
DE3635169A1 (de) * 1985-10-21 1987-04-23 Usui Kokusai Sangyo Kk Biegevorrichtung fuer automatische rohrbiegeeinrichtungen
DE3811891A1 (de) * 1988-04-09 1989-06-15 Semmlinger Werner Vorrichtung zum biegen von strangmaterial
DE29501141U1 (de) * 1995-01-25 1995-03-02 Dengler Schweißtechnik GmbH, 44805 Bochum Vorrichtung zum Biegen von Rohren
US5765426A (en) * 1995-07-14 1998-06-16 Usui Kokusai Sangyo Kaisha Limited Pipe bending apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121077A2 (fr) * 1983-03-31 1984-10-10 Thomas Peter Lang Machine à cintrer des tubes
DE3635169A1 (de) * 1985-10-21 1987-04-23 Usui Kokusai Sangyo Kk Biegevorrichtung fuer automatische rohrbiegeeinrichtungen
DE3811891A1 (de) * 1988-04-09 1989-06-15 Semmlinger Werner Vorrichtung zum biegen von strangmaterial
DE29501141U1 (de) * 1995-01-25 1995-03-02 Dengler Schweißtechnik GmbH, 44805 Bochum Vorrichtung zum Biegen von Rohren
US5765426A (en) * 1995-07-14 1998-06-16 Usui Kokusai Sangyo Kaisha Limited Pipe bending apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108044378A (zh) * 2018-01-09 2018-05-18 浙江东帆船舶配件有限公司 一种用扁钢加工圆弧形零件加工的装置
CN108044378B (zh) * 2018-01-09 2024-02-02 浙江东帆船舶配件有限公司 一种用扁钢加工圆弧形零件加工的装置
CN111451333A (zh) * 2020-04-22 2020-07-28 江西耐乐铜业有限公司 一种内凹齿式热管的成型模具装置

Also Published As

Publication number Publication date
DE50307038D1 (de) 2007-05-24
EP1543892B1 (fr) 2007-04-11

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