WO2000018527A1 - Pressure pad device for a bending machine - Google Patents

Pressure pad device for a bending machine Download PDF

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Publication number
WO2000018527A1
WO2000018527A1 PCT/EP1999/006987 EP9906987W WO0018527A1 WO 2000018527 A1 WO2000018527 A1 WO 2000018527A1 EP 9906987 W EP9906987 W EP 9906987W WO 0018527 A1 WO0018527 A1 WO 0018527A1
Authority
WO
WIPO (PCT)
Prior art keywords
bending
slide rail
bending machine
attachments
counter
Prior art date
Application number
PCT/EP1999/006987
Other languages
German (de)
French (fr)
Inventor
Dieter Hartnagel
Original Assignee
Pulzer Biegetechnik Gmbh
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
Priority claimed from DE19919508A external-priority patent/DE19919508A1/en
Application filed by Pulzer Biegetechnik Gmbh filed Critical Pulzer Biegetechnik Gmbh
Priority to JP2000572037A priority Critical patent/JP2002525207A/en
Priority to EP99948812A priority patent/EP1135222B1/en
Priority to AT99948812T priority patent/ATE236744T1/en
Priority to DE59904998T priority patent/DE59904998D1/en
Publication of WO2000018527A1 publication Critical patent/WO2000018527A1/en

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
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/021—Construction of forming members having more than one groove

Definitions

  • the invention relates to a counter-holding device for a bending machine, in particular for a pipe bending machine, in the form of a slide rail which is moved linearly during the bending process and has a plurality of slide rail attachments for different bending radii.
  • the object of the invention is to improve a counter-holding device for a bending machine of the type mentioned at the outset in such a way that the risk of collision between sliding rail attachments and tool parts is avoided.
  • the invention achieves the stated object with a counter-holding device of the type mentioned at the outset in that the slide rail attachments are mounted on the slide rail via lockable and unlockable adapters.
  • the slide rail attachments in particular those for the small radii, can be uncoupled from the common drive of the slide rail attachments, thereby avoiding a collision of the slide rail attachments, in particular those for the small radii, with clamping jaws or other tool parts.
  • the adapters can be programmable via an NC control or can be locked and unlocked automatically.
  • the slide bar attachments and adapters can form a retrofit unit.
  • the several slide rail attachments can be aligned with the height of the several bending tools, the height of the multiple slide rail attachments and adapters can be adjusted separately.
  • the invention also relates to a bending machine, in particular a tube bending machine with a clamping device for a workpiece to be bent, in particular a tube, a bending head provided with a plurality of bending tools having different radii and a plurality of bores that can be moved horizontally and / or vertically to the longitudinal axis of the workpiece and with which Bending tools cooperating swivel arm having jaws, which has a counter-holding device according to the invention.
  • a bending machine in particular a tube bending machine with a clamping device for a workpiece to be bent, in particular a tube, a bending head provided with a plurality of bending tools having different radii and a plurality of bores that can be moved horizontally and / or vertically to the longitudinal axis of the workpiece and with which Bending tools cooperating swivel arm having jaws, which has a counter-holding device according to the invention.
  • Figure 1 is a schematic view of a bending machine with a counter-holding device according to the invention.
  • FIG. 2 shows a side view of the counter-holding device of the bending machine from FIG. 1.
  • a bending machine 10 with a machine body 16 and a bending head 17.
  • a pipe not shown here, to be bent can be clamped in a clamping device 11.
  • a slide rail 12 has the task of supporting and tracking the pipe during the bending process.
  • slide rail attachments 20, 22, 23, 24 (FIG. 2) are arranged.
  • the movement of the slide rail 12 must take place during the bending process synchronously with the bending movement of a clamping block 13 with clamping jaws 18, which is mounted on a swivel arm 14.
  • the tube is bent over a corresponding bending tool 15.
  • FIG. 2 shows the slide rail 12 from FIG. 1 in an enlarged view, on which the four slide rail attachments 20, 22, 23, 24 are mounted lockable and unlockable via adapter 21.
  • Locking and unlocking can be done via the NC control of the machine for reasons of easy handling or automatically.
  • the slide rail attachment 20 for smaller bending radii can be uncoupled from the slide rail. In this way, a collision between the slide rail attachment 20 and the clamping jaws 18 shown in FIG. 1 can be avoided.

Abstract

The invention relates to a pressure pad for a bending machine (10), notably a pipe bending machine, in the form of a sliding rail (12) which undergoes a linear displacement during the bending process and comprises several mountings (20, 22, 23, 24) for different bending radii which can be mounted on the sliding rail (12) by lockable and unlockable adapters (21).

Description

Gegenha l tevorrichtung für eine Biegemaschine Retaining device for a bending machine
B e s c h r e i b u n gDescription
Die Erfindung betrifft eine Gegenhaltevorrichtung für eine Biegemaschine, insbesondere für eine Rohrbiegemaschine, in Form einer linear beim Biegevorgang mitbewegten Gleitschiene mit mehreren Gleitschienenaufsätzen für unterschiedliche Biegeradien .The invention relates to a counter-holding device for a bending machine, in particular for a pipe bending machine, in the form of a slide rail which is moved linearly during the bending process and has a plurality of slide rail attachments for different bending radii.
Da bei Biegemaschinen mit einer Gegenhaltevorrichtung der eingangs genannten Art al3e Gleitschienenaufsätze gleichzeitig verfahren, haben diese Biegemaschinen den Nachteil, dass beim Biegen großer Radien der Gleitschienenaufsatz für einen kleineren Radius mit Werkzeugteilen, z. B. einer Spannbacke für den kleinen Radius kollidieren kann, sofern die Radien entsprechend voneinander abweichen. Bislang wird dieses Problem dadurch gelöst, dass anstelle von Gleitschienen Gegenhalte- Rollen verwendet werden. Für anspruchsvolle Biegeaufgaben, wie das Biegen sehr dünnwandiger Rohre, sehr weicher Rohre oder das Biegen sehr kleiner Radien, sind Gegenhalte-Rol len jedoch nicht mehr geeignet. Hier ist der Einsatz von Gleitschienen zwingend erforderlich. Die Erfindung hat die Aufgabe, eine Gegenhaltevorrichtung für eine Biegemaschine der eingangs genannten Art dahingehend zu verbessern, dass die Kollisionsgefahr zwischen G eitschienenaufsätzen und Werkzeugteilen vermieden wird.Since all slide rails attachments move simultaneously with a counter-holding device of the type mentioned at the beginning, these bending machines have the disadvantage that when bending large radii the slide rail attachment for a smaller radius with tool parts, eg. B. a collet for the small radius can collide if the radii differ accordingly. So far, this problem has been solved by using counter-rollers instead of slide rails. However, counter rolls are no longer suitable for demanding bending tasks such as bending very thin-walled tubes, very soft tubes or bending very small radii. The use of slide rails is imperative here. The object of the invention is to improve a counter-holding device for a bending machine of the type mentioned at the outset in such a way that the risk of collision between sliding rail attachments and tool parts is avoided.
Die Erfindung löst die gestellte Aufgabe mit einer Gegenhaltevorrichtung der eingangs genannten Art dadurch, dass die Gleitschienenaufsätze über ver- und entriegelbare Adapter an der Gleitschiene montiert sind. Auf diese Weise können vorzugsweise beim Biegen großer Radien die Gleitschienenaufsätze, insbesondere diejenigen für die kleinen Radien, vom gemeinsamen Antrieb der Gleitschienenaufsätze abgekoppelt werden, wodurch eine Kollision der Gleitschienenaufsätze, insbesondere derjenigen für die kleinen Radien, mit Spannbacken oder anderen Werkzeugteilen vermieden wird.The invention achieves the stated object with a counter-holding device of the type mentioned at the outset in that the slide rail attachments are mounted on the slide rail via lockable and unlockable adapters. In this way, preferably when bending large radii, the slide rail attachments, in particular those for the small radii, can be uncoupled from the common drive of the slide rail attachments, thereby avoiding a collision of the slide rail attachments, in particular those for the small radii, with clamping jaws or other tool parts.
Hinsichtlich einer komfortablen Maschinenbedienung können die Adapter über eine NC-Steuerung programmierbar sein oder automatisch ver- und entriegelt werden.With regard to convenient machine operation, the adapters can be programmable via an NC control or can be locked and unlocked automatically.
Um auch Biegemaschinen ohne erfindungsgemäßen Adapter mit einem Adapter nachrüsten zu können, können die Gleitsch enenaufsätze und Adapter eine Nachrüsteinheit bilden.In order to be able to retrofit bending machines without an adapter according to the invention with an adapter, the slide bar attachments and adapters can form a retrofit unit.
Damit die mehreren Gleitschienenaufsätze auf die Höhe der mehreren Biegewerkzeuge ausgerichtet werden können, können die mehreren Gleitschienenaufsätze und Adapter separat in der Höhe einstellbar sein.So that the several slide rail attachments can be aligned with the height of the several bending tools, the height of the multiple slide rail attachments and adapters can be adjusted separately.
Die Erfindung betrifft auch eine Biegemaschine, insbesondere eine Rohrbiegemaschine mit einer Spannvorrichtung für ein zu biegendes Werkstück, insbesondere ein Rohr, einen mit mehreren, unterschiedliche Radien aufweisenden Biegewerkzeugen versehenen Biegekopf und einen mehrere, horizontal und/oder vertikal zur Längsachse des Werkstücks verfahrbare und mit den Biegewerkzeugen zusammenwirkende Spannbacken aufweisenden Schwenkarm, die eine Gegenhaltevorrichtung nach der Erfindung aufweist .The invention also relates to a bending machine, in particular a tube bending machine with a clamping device for a workpiece to be bent, in particular a tube, a bending head provided with a plurality of bending tools having different radii and a plurality of bores that can be moved horizontally and / or vertically to the longitudinal axis of the workpiece and with which Bending tools cooperating swivel arm having jaws, which has a counter-holding device according to the invention.
Nachfolgend wird ein Ausführungsbeispiel einer erfindungsgemäß ausgebildeten Biegemaschine anhand der beiliegenden Zeichnung näher erläutert.An exemplary embodiment of a bending machine designed according to the invention is explained in more detail below with reference to the accompanying drawing.
Im Einzelnen zeigen:Show in detail:
Fig. 1 eine schematische Ansicht einer Biegemaschine mit einer Gegenhaltevorrichtung nach der Erfindung;Figure 1 is a schematic view of a bending machine with a counter-holding device according to the invention.
Fig. 2 eine Seitenansicht auf die Gegenhaltevorrichtung der Biegemaschine aus Fig. 1.FIG. 2 shows a side view of the counter-holding device of the bending machine from FIG. 1.
Fig. 1 zeigt eine Biegemaschine 10 mit einem Maschinenkörper 16 und einem Biegekopf 17. In eine Spannvorrichtung 11 kann ein hier nicht näher dargestelltes zu biegendes Rohr eingespannt werden. Eine Gleitschiene 12 hat die Aufgabe, das Rohr während des B egevorgangs abzustützen und nachzuführen. Am vorderen Ende der Gleitschiene 12 sind Gleitschienenaufsätze 20, 22, 23, 24 (Fig. 2) angeordnet. Die Verfahrbewegung der Gleitschiene 12 muss während des Biegevorgangs synchron zu der Biegebewegung eines Spannbocks 13 mit Spannbacken 18, der auf einem Schwenkarm 14 montiert ist, erfolgen. Beim Biegevorgang wird das Rohr über ein entsprechendes Biegewerkzeug 15 gebogen .1 shows a bending machine 10 with a machine body 16 and a bending head 17. A pipe, not shown here, to be bent can be clamped in a clamping device 11. A slide rail 12 has the task of supporting and tracking the pipe during the bending process. At the front end of the slide rail 12, slide rail attachments 20, 22, 23, 24 (FIG. 2) are arranged. The movement of the slide rail 12 must take place during the bending process synchronously with the bending movement of a clamping block 13 with clamping jaws 18, which is mounted on a swivel arm 14. During the bending process, the tube is bent over a corresponding bending tool 15.
Fig. 2 zeigt die Gleitschiene 12 aus Fig. 1 in vergrößerter Ansicht, auf der über Adapter 21 die vier Gleitschienenaufsätze 20, 22, 23, 24 ver- und entriegelbar montiert sind. Die Ver- und Entriegelung kann aus Gründen der bequemen Handhabung über die NC-Steuerung der Maschine oder automatisch erfolgen. Durch das Ver- und Entriegeln kann hauptsächlich beim Biegen großer Radien der G eitschienenaufsatz 20 für kleinere Biegeradien von der Gleitschiene abgekoppelt werden. Auf diese Weise kann eine Kollision zwischen dem Gleitschienenaufsatz 20 und den in Fig. 1 dargestellten Spannbacken 18 vermieden werden.FIG. 2 shows the slide rail 12 from FIG. 1 in an enlarged view, on which the four slide rail attachments 20, 22, 23, 24 are mounted lockable and unlockable via adapter 21. Locking and unlocking can be done via the NC control of the machine for reasons of easy handling or automatically. By locking and unlocking, mainly when bending large radii, the slide rail attachment 20 for smaller bending radii can be uncoupled from the slide rail. In this way, a collision between the slide rail attachment 20 and the clamping jaws 18 shown in FIG. 1 can be avoided.
Es könnte natürlich auch für jeden Gleitschienenaufsatz 20, 22, 23, 24 eine separat bewegliche Gleitschiene 12 vorgesehen werden. Diese Lösung würde jedoch einen erheblichen Mehraufwand an Steuer-, Antriebs- und Messeinrichtungen bedeuten. Of course, a separately movable slide rail 12 could also be provided for each slide rail attachment 20, 22, 23, 24. However, this solution would mean a considerable additional outlay on control, drive and measuring devices.

Claims

P a t e n t a n s r ü c h e Patent claims
1. Gegenhaltevorrichtung für eine Biegemaschine, insbesondere für eine Rohrbiegemaschine, in Form einer linear beim Biegevorgang mitbewegten Gleitschiene (12) mit mehreren Gleitschienenaufsätzen (20, 22, 23, 24) für unterschiedliche Biegeradien, dadurch gekennzeichnet, dass die Gleitschienenaufsätze (20, 22, 23, 24) über ver- und entriegelbare Adapter (21) an der Gleitschiene (12) montiert sind.1. counter-holding device for a bending machine, in particular for a pipe bending machine, in the form of a slide rail (12) which is moved linearly during the bending process and has a plurality of slide rail attachments (20, 22, 23, 24) for different bending radii, characterized in that the slide rail attachments (20, 22, 23, 24) are mounted on the slide rail (12) by means of lockable and unlockable adapters (21).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Ver- und Entriegelung der Adapter (21) über eine NC- Steuerung programmierbar ist oder automatisch erfolgt.2. Device according to claim 1, characterized in that the locking and unlocking of the adapter (21) is programmable via an NC control or takes place automatically.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Gleitschienenaufsätze (20, 22, 23, 24) und Adapter (21) eine Nachrüsteinheit bilden.3. Device according to claim 1 or 2, characterized in that the slide rail attachments (20, 22, 23, 24) and adapter (21) form a retrofit unit.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die mehreren Gleitschienenaufsätze (20, 22, 23, 24) und Adapter (21) separat in der Höhe einstel bar sind.4. Device according to one of claims 1 to 3, characterized in that the plurality of slide rail attachments (20, 22, 23, 24) and adapter (21) are separately adjustable in height.
5. Biegemaschine, insbesondere Rohrbiegemaschine (10), mit einer Spannvorrichtung (11) für ein zu biegendes Werkstück, insbesondere ein Rohr, einen mit mehreren, unterschiedliche Radien aufweisenden Biegewerkzeugen (15) versehenen Biegekopf (17), und einen mehrere, horizontal und/oder vertikal zur Längsachse des Werkstücks verfahr- bare und mit den Biegewerkzeugen (15) zusammenwirkende Spannbacken (18) aufweisenden Schwenkarm (14), dadurch gekennzeichnet, dass sie eine Gegenhaltevorrichtung nach einem der Ansprüche 1 bis 4 aufweist. 5. Bending machine, in particular pipe bending machine (10), with a clamping device (11) for a workpiece to be bent, in particular a pipe, a bending head (17) provided with a plurality of bending tools (15) having different radii, and a multiple, horizontal and / or moved vertically to the longitudinal axis of the workpiece bare and with the bending tools (15) interacting jaws (18) having swivel arm (14), characterized in that it has a counter-holding device according to one of claims 1 to 4.
PCT/EP1999/006987 1998-09-25 1999-09-21 Pressure pad device for a bending machine WO2000018527A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000572037A JP2002525207A (en) 1998-09-25 1999-09-21 Opposing holding device for bending machine
EP99948812A EP1135222B1 (en) 1998-09-25 1999-09-21 Pressure pad device for a bending machine
AT99948812T ATE236744T1 (en) 1998-09-25 1999-09-21 COUNTER-HOLDING DEVICE FOR A BENDING MACHINE
DE59904998T DE59904998D1 (en) 1998-09-25 1999-09-21 COMPENSATION DEVICE FOR A BENDING MACHINE

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19843867.2 1998-09-25
DE19843867 1998-09-25
DE19919508.0 1999-04-29
DE19919508A DE19919508A1 (en) 1998-09-25 1999-04-29 Bracket for a bending machine

Publications (1)

Publication Number Publication Date
WO2000018527A1 true WO2000018527A1 (en) 2000-04-06

Family

ID=26049063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/006987 WO2000018527A1 (en) 1998-09-25 1999-09-21 Pressure pad device for a bending machine

Country Status (4)

Country Link
EP (1) EP1135222B1 (en)
JP (1) JP2002525207A (en)
AT (1) ATE236744T1 (en)
WO (1) WO2000018527A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187666A (en) * 1986-03-15 1987-09-16 Pressbend Ltd Pipe bending apparatus
US5042279A (en) * 1989-10-05 1991-08-27 Chiyoda Kogyo Co., Ltd. Bending machine
EP0538207A2 (en) * 1991-10-16 1993-04-21 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Multi-function pipe bending machine
US5495740A (en) * 1993-10-21 1996-03-05 Schwarze; Rigobert Pipe bending machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187666A (en) * 1986-03-15 1987-09-16 Pressbend Ltd Pipe bending apparatus
US5042279A (en) * 1989-10-05 1991-08-27 Chiyoda Kogyo Co., Ltd. Bending machine
EP0538207A2 (en) * 1991-10-16 1993-04-21 FABBRICA MACCHINE CURVATUBI CRIPPA AGOSTINO S.p.A. Multi-function pipe bending machine
US5495740A (en) * 1993-10-21 1996-03-05 Schwarze; Rigobert Pipe bending machine

Also Published As

Publication number Publication date
EP1135222A1 (en) 2001-09-26
JP2002525207A (en) 2002-08-13
ATE236744T1 (en) 2003-04-15
EP1135222B1 (en) 2003-04-09

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