EP3362201A1 - Procédé de fonctionnement d'une presseur plieuse et presse plieuse - Google Patents

Procédé de fonctionnement d'une presseur plieuse et presse plieuse

Info

Publication number
EP3362201A1
EP3362201A1 EP16781136.3A EP16781136A EP3362201A1 EP 3362201 A1 EP3362201 A1 EP 3362201A1 EP 16781136 A EP16781136 A EP 16781136A EP 3362201 A1 EP3362201 A1 EP 3362201A1
Authority
EP
European Patent Office
Prior art keywords
bending
tool
press
stop
tools
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
EP16781136.3A
Other languages
German (de)
English (en)
Other versions
EP3362201B1 (fr
EP3362201C0 (fr
Inventor
Roberto VERONESE
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.)
Trumpf Maschinen Austria GmbH and Co KG
Original Assignee
Trumpf Maschinen Austria GmbH and Co KG
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 Trumpf Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP3362201A1 publication Critical patent/EP3362201A1/fr
Application granted granted Critical
Publication of EP3362201B1 publication Critical patent/EP3362201B1/fr
Publication of EP3362201C0 publication Critical patent/EP3362201C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0254—Tool exchanging
    • 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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0236—Tool clamping

Definitions

  • the invention relates to a manufacturing apparatus, in particular a bending press, and a method for forming a workpiece from sheet metal according to the preamble of claims 1 and 9.
  • press brakes with automatically operating tool change systems are also known. These have manipulation devices with appropriately designed grippers for receiving and moving the bending tools between a tool storage and the tool holders in the press table or in the press beam.
  • gripper different principles of action are applicable, for example, mechanical grippers or grippers using force by electromagnets or by vacuum are known.
  • the bending press comprises a stop device for positioning the workpiece to be processed.
  • the abutment device is brought into abutment with a second bending tool and thereby held this second bending tool in the tool holder before removing a first bending tool to be moved or before inserting a first, to be used bending tool.
  • the first bending tool and the second bending tool are arranged in a fixed position in the tool holder position immediately adjacent.
  • This procedure has the advantage that the bending tools to be manipulated are always kept in a defined position and orientation during replacement. This is even though the tool holders own clamping device is disabled during Auswechseins the bending tools.
  • the stop device comprises a stop body and the stopper body is brought to the second bending tool for conditioning.
  • the stop body of the stopper device comprises a carrier in an end region facing the tool holder and a tool clamping device is arranged on a lower side of the carrier and the tool clamping device is brought into contact with the second bending tool becomes.
  • the use of the tool clamping device offers the possibility of an embodiment of their contact surfaces with a higher frictional engagement, for example by designing with an increased surface roughness.
  • Another advantage is also a procedure in which a tool store is formed and the bending tool to be moved is stored in the tool store or the bending tool to be inserted into the tool mount is removed from the tool store. This ensures that the bending tools, even when not in use, are in a secured position and orientation.
  • a transport device is formed with a gripper and the first bending tool is pulled or pushed for transport from the transport device in the tool holder in a direction parallel to the longitudinal extension of the tool holder direction.
  • the transport device is also moved by control commands of the control device.
  • This has the advantage that the tool change of the bending tools can be done automatically.
  • a second transport device is formed and the arrangement of the two or more bending tools is moved before removing the first wegzubedorfden bending tool from the second transport means in an achievable by the stopper adjustment range. This has the advantage that it increases the achievable range of action for the bending tools to be exchanged.
  • the object of the invention is also independent by a press brake for forming a workpiece made of sheet metal with a table bar and the table bar opposite and parallel aligned press beams and formed on the table bar and on the press bar tool holders for fastening Biegewerkzeu- gene and with at least one Stop device for positioning the workpiece to be machined solved. It is also provided that the stop device is formed on one of the tool holder end facing with a tool clamping device. This has the advantage that a higher frictional engagement between the stop device and the bending tools to be retained can be achieved by the tool clamping device.
  • the stop device comprises a stop body with a stop edge and a carrier, wherein the tool clamping device is fastened to an underside of the carrier.
  • the tool clamping device projects beyond the tool receiving end portion of the carrier in the horizontal direction.
  • Another advantage is the development according to which the bending press is designed with a tool storage for the storage of bending tools.
  • a transport device is designed with a gripper for detecting the bending tool, wherein a movement range of the gripper extends between the tool holder and the tool storage.
  • a second transport device is formed, wherein a movement region of the second transport device extends parallel to the longitudinal extent of the tool receptacle.
  • the bending press is advantageously formed with a control device, wherein the stop means is adjustable by control commands of the control device.
  • Another advantage is the development of the bending press, according to which the transport device and the gripper are adjustable by control commands of the control device.
  • the tool clamping device is made of rubber or a rubber-like material.
  • the bending tool is formed with a hole and the tool clamping device with an insertable into the hole bolt. This allows the retention of a bending tool in the tool holder can be achieved by positive engagement of the tool clamping device in the bending tool.
  • FIG. 1 shows a bending press for forming a workpiece
  • FIG. 2 shows the bending press according to FIG. 1 with a tool store for bending tools in a front view
  • Fig. 3 shows a first position of the bending tools on the bending press at the beginning of a
  • 4 shows the movement of a bending tool on the bending press during the tool change; 5 shows the bending tools on the bending press before moving away a second bending tool. 6 shows the coupling of the gripper of the tool change system of the bending press to the second bending tool;
  • FIG. 7 shows the movement of the second bending tool away from the bending press
  • FIG. 8 shows the bending press according to FIG. 1 during the insertion of bending tools with a first bending die
  • Fig. 12 shows the retraction of the gripper or the transport device
  • FIG. 13 shows the movement of a third bending tool with the transport device
  • FIG. 14 shows a further embodiment of the tool changing system of the bending press with a second transport device for the bending tools
  • FIG. 15 shows the displacement of an arrangement of a plurality of juxtaposed bending tools with the second transport device on the tool holder
  • 16 shows a detail of the bending press according to FIG. 1 with a stop device of an alternative embodiment
  • 17 shows a further embodiment of the bending press with an alternative tool change system
  • 18 shows a detail of the bending press according to FIG. 1 with a stop device of a further alternative embodiment.
  • the bending press 1 shows a manufacturing plant formed by a bending press 1 or a press brake for producing or for forming a workpiece 2.
  • the bending press 1 has for this purpose a table beam 4 fastened to a machine frame 3 and a press beam 5 which is adjustable relative to the table beam 4 , As bending tools a bending die 6 are attached to the table bar 4 and a punch 7 on the press bar 5. With the aid of a drive assembly 8 and a linear guide assembly 9 of the press bar 5 is guided with the attached punch 7 against the table bar 4 with the Biegegesenk 6 and acted on the lying between the bending die 6 and the punch 7 workpiece 2.
  • a control device 10 is provided.
  • the control device 10 can in turn be operated via an input terminal 11 by a user of the bending press 1.
  • the control device 10 can also be connected to other components of the bending press 1 for their control.
  • the bending press 1 comprises a stop device 12 as such a controlled component.
  • Body 13 with a vertically extending stop edge 14 and a carrier 15.
  • the stop edge 14 and the carrier 15 of the correspondingly positioned stop body 13 allow exact alignment of the workpiece 2 when inserting into the bending press 1 and on the bending die 6 before the execution of the forming process. In FIG. 1, this situation can be seen on the undeformed workpiece 2 represented by dashed lines.
  • the adjustment of the stop device 12 is preferably motor-driven and corresponding to a control by the control device 10.
  • the tool receivers 19, 20 have substantially groove-shaped receiving slots, which extend in the direction of the longitudinal extent of the table beam 4 and the press bar 5.
  • suitable clamping devices (not shown) with which the tool holders 19, 20 are formed, the bending dies 6 and the bending dies 7 can each be clamped in the table beam 4 or the press beam 5.
  • the clamping device is formed in two stages. In a first stage, the attachment is initially only loosened. This prevents that upon release of the clamping of the tool holder 20 of the punch 7 falls out of the receiving slot.
  • the bending press 1 comprises an automated tool changing system, wherein the stop body 13 of the stop device 12 according to the invention is formed with a tool clamping device 21.
  • This tool clamping device 21 is used when bending tools on the tool holders 19, 20 are to be replaced. Namely, it is particularly advantageous if two or more bending tools are arranged side by side in one of the tool holders 19, 20.
  • the stop device 12 can be moved or moved so that finally the tool clamping device 21 selectively abuts one of the bending dies 6 in such a way that this bending die 6 is held in its current position.
  • FIGS. 2 to 7 show a sequence of manipulation steps of an automated tool change of a bending press 1 with a tool change system.
  • the illustrations according to FIGS. 2 to 7 show frontal views of the bending press 1 according to FIG. 1.
  • the bending press 1 with the tool change system also comprises a tool store 22 for receiving or supporting bending dies 6 and bending dies 7.
  • a transport device is provided 23 provided with the individual bending tools between the tool storage 22 and the tool holders 19, 20 can be moved back and forth.
  • the transport device 23 is formed with a gripper 24, with which the bending dies 6 and the punch 7 can be detected and moved.
  • the transport device 23 is formed by a telescopic arm.
  • the gripper 24 comprises a Elektromag- neten, by the activation of a bending die 6 detected or can be coupled to the gripper 24.
  • the detection by the gripper 24 can alternatively be done in other ways, for example by mechanical clamping.
  • Another alternative is suction cups, which can detect the bending tools with the aid of a vacuum pump. 2 shows an initial situation of the bending press 1 after completion of a manufacturing process or before the start of a tool change. In order to be able to move the bending dies 6 from their current position in the tool holder 19, the clamping device of the tool holder 19 is first of all deactivated or released.
  • the gripper 24 is moved toward a first bending die 6 to be moved (FIG. 3). Meanwhile, the stopper 12 can be repositioned. Namely, the stopper 12 is maneuvered so that finally the tool clamping device 21 comes to rest on a wegzube- admirden, first bending die 6 adjacent second bending die 6.
  • the stop device 12 is preferably raised and moved horizontally so far that the tool clamping device 21 comes to lie on the underside of the carrier 15 of the stopper body 13 above the adjacent, second bending die 6.
  • the stopper 12 By lowering the stopper 12 with the tool clamping device 21 and finally applying a corresponding vertical pressing force 25, the first bending die 6 adjacent second bending die 6 is clamped or held.
  • the gripper 24 couples to the first bending die 6 to be moved, and is pulled by retracting the telescopic arm of the transporting device 23 in the direction of the tool storage 22 where the bending die 6 can be deposited. (Fig. 4).
  • the stopper 12 is raised again with the tool clamping device 21 and moved as far as the side that the tool clamping device 21 comes to rest on the third bending die 6 and now this is held by pressing down with the tool clamping device 21.
  • the second bending die 6 can now be grasped and moved by the gripper 24 (FIG. 7).
  • the tool change described is preferably carried out automatically in accordance with the control commands issued by the control device 10 (FIG. 1).
  • the inventive Striking device 12 takes over as an additional function the temporary holding of bending tools in the tool holders 19, 20 during the tool change to the bending press 1.
  • This procedure can be prevented that when moving individual bending tools with the transport device 23 two or more of the bending tools unwanted manner stick to each other.
  • Experience has shown that such a sticking of bending tools can lead to a separation or separation of adjacent bending tools occurring at a later time or at an unpredictable position on the path between the tool holders 19, 20 and the tool storage 22, and the automated tool change is thereby disturbed or blocked. In the worst case, it may also happen that bending dies 6 fall out of the tool holder 19 and are damaged.
  • the tool change system of the bending press 1 can also be provided that the carrier 15 of the stopper body 13 of the stopper 12 acts alone as a tool clamping device.
  • the tool clamping device 21 used is a block made of rubber, in particular of hard rubber, or a component made of a similar material having elastic properties.
  • the frictional engagement between the contact surfaces can be improved. But this can also be avoided that it comes to damage the parts coming into contact with each other or an overload of the mechanics and the drive of the stopper 12.
  • FIGS. 8 to 13 shows the positioning of the first bending die 6 on the tool holder 19.
  • the stop device 12 is brought into abutment against the bending die 6, so that it engages in the desired position is held.
  • the electromagnet of the gripper 24 can be deactivated and then the gripper 24 are removed from the bending die 6.
  • FIG. 9 shows how a second bending die 6 is moved by means of the transport device 23.
  • the first of the two bending dies 6 now remains held by the stop device 12 until the second bending die 6 has come into contact with the first bending die 6 and has come to a standstill (FIG. 10).
  • the stopper device 12 is adjusted in such a way that its tool clamping device 21 finally comes into contact with the second bending die 6 and this is held fast (FIG. 11).
  • the electromagnet of the gripper 24 of the transport device 26 of the telescopic arm of the transport device 26 is moved back again (Fig. 12).
  • Fig. 12 shows how a second bending die 6 is moved by means of the transport device 23.
  • a third bending die 6 is brought by means of the transport device 26 to the two first bending dies 6.
  • the retention of a bending die 6 when moving another bending die 6 for joining an arrangement of bending tools ensures that already positioned bending tools can not be repelled or possibly moved.
  • FIGS. 14, 15 show a further embodiment of the bending press 1, which is possibly independent of itself, wherein the same reference numerals or component designations are used again for the same parts as in the preceding FIGS. 1 to 13. To avoid unnecessary repetition, reference is made to the detailed description in the preceding.
  • Figures 14 and 15 show a further embodiment of the tool changing system of the bending press 1.
  • the bending press 1 next to the transport device 23 with the gripper 24, a second transport means 26.
  • the Biegegesenke 6 as far outside of the stopper 12 achievable adjustment 27 that a holding with the tool clamping device 21 is not possible.
  • the transport device 26 By means of the transport device 26, the arrangement of the juxtaposed bending dies 6 can first be displaced as a whole into the region of the adjustment region 27 of the stop device 12 in the tool holder 19. Following the tool change, as described above with reference to FIGS. 2 to 7, are made.
  • FIG. 16 shows a detail of the bending press 1 according to FIG. 1 with a stop device 12 according to an alternative embodiment of the tool clamping device 21.
  • the tool change takes place in an arrangement of juxtaposed bending dies 6 in that the first bending die 6 to be moved is located directly adjacent, second bending die 6 by applying a in Ho acting in a directional pressing force 28 is held in its current position in the tool holder 19. This is achieved by bringing the stop device 12 from the rear (ie from the left according to FIG. 16 or FIG. 1) to the bending die 6 until finally the tool clamping device 21 comes into contact with the bending die 6.
  • the tool clamping device 21 is attached to the underside of the carrier 15 of the stopper 13 on the carrier 15.
  • the tool clamping device 21 is preferably fastened to an end region of the carrier 15 facing the bending die 6 such that the tool clamping device 21 projects beyond the end region of the carrier 15 pointing towards the bending die 6 in the horizontal direction. By projecting the tool clamping device 21 beyond the end region of the carrier 15, it is achieved that in holding the bending tools only the tool clamping device 21 comes into contact with them.
  • FIG. 17 shows a further embodiment of a bending press 1 with a tool change system.
  • the tool change system according to this embodiment comprises a transport carriage 29 with a pivotable gripping arm 30.
  • a vertical guide 31 and a horizontal guide 32 is provided by means of which the transport carriage 29 is movable.
  • the gripping arm 30 of the transport carriage 29 By means of the gripping arm 30 of the transport carriage 29, the bending tools 6, 7 between the tool holders 19, 20 and the tool storage 22 can be moved back and forth.
  • this method for changing tools in the bending press 1 is provided that during the removal of bending dies 6 with the gripping arm 30 of the transport carriage 29 a bending die 6 adjacent Biegegesenk 6 by the stopper 12 and by the tool clamping device 21 in the tool holder 19th is held.
  • the bending tools 6, 7 are not pushed into the tool holders 19, 20 back and forth, but removed directly or inserted by the gripper arm 30. Such removal or insertion is commonly referred to as "pick and place.”
  • FIG. 18 shows a detail of the bending press 1 according to FIG. 1 with a stop device 12 of a further alternative embodiment.
  • the bending tool formed by the bending die 6 is held by a positive connection between the tool clamping device 21 of the stopper 12 and the bending die 6.
  • the bending die 6 has a hole 33 running perpendicular to the longitudinal extension of the tool holder 19.
  • the tool clamping device 21 comprises a bolt 34.
  • the stopper 12 in the tool change of bending tools on the bending press 1 has the particular advantage that only minor structural adaptations is required.
  • the stop device 12 or its carrier 15 is used to hold the respective bending tools in the tool holder 19, 20. This can save both costs and space.
  • the only requirement is that the stopper 12 can be adjusted relative to the table bar 4 of the bending press 1 in all three spatial directions.
  • the adjustment of the stop device 12 with the tool clamping device 21 is preferably motor-driven and according to the control commands of the control device 10, so preferably automatically.
  • the embodiments show possible embodiments of the bending press 1, wherein it should be noted at this point that also various combinations of the individual variants are possible with each other. The task underlying the independent inventive solutions can be taken from the description.

Landscapes

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

Abstract

L'invention concerne un procédé de fonctionnement d'une presse plieuse (1) destinée à la mise en forme d'une pièce (2) en tôle, la presse plieuse (1) comportant une poutre de table (4) et une poutre de presse (5), et la poutre de table (4) et la poutre de presse (5) présentant des logements d'outils (19, 20) destinés à des outils de pliage (6, 7), et un dispositif de butée (12) conçu pour le positionnement de la pièce (2) à usiner. Pour le changement d'un agencement d'outils de pliage (6, 7), avant l'enlèvement d'un premier outil de pliage (6, 7) à déplacer ou avant l'insertion d'un premier outil de pliage (6, 7) à insérer, le dispositif de butée (12) est amené en contact avec un deuxième outil de pliage (6, 7), ce deuxième outil de pliage (6, 7) étant maintenu en place dans le logement d'outil (19, 20).
EP16781136.3A 2015-10-15 2016-10-13 Procédé de fonctionnement d'une presseur plieuse et presse plieuse Active EP3362201B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50878/2015A AT517347B1 (de) 2015-10-15 2015-10-15 Verfahren zum Betreiben einer Biegepresse
PCT/EP2016/074606 WO2017064195A1 (fr) 2015-10-15 2016-10-13 Procédé de fonctionnement d'une presseur plieuse et presse plieuse

Publications (3)

Publication Number Publication Date
EP3362201A1 true EP3362201A1 (fr) 2018-08-22
EP3362201B1 EP3362201B1 (fr) 2023-06-14
EP3362201C0 EP3362201C0 (fr) 2023-06-14

Family

ID=57130399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16781136.3A Active EP3362201B1 (fr) 2015-10-15 2016-10-13 Procédé de fonctionnement d'une presseur plieuse et presse plieuse

Country Status (3)

Country Link
EP (1) EP3362201B1 (fr)
AT (1) AT517347B1 (fr)
WO (1) WO2017064195A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110899403A (zh) * 2019-12-13 2020-03-24 株洲华信精密工业股份有限公司 一种钣金件折弯装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521530B1 (de) * 2018-07-27 2020-04-15 Trumpf Maschinen Austria Gmbh & Co Kg Biegepresse und Verfahren zum Betreiben einer Biegepresse
JP7320439B2 (ja) * 2019-12-11 2023-08-03 株式会社アマダ 分割金型の配置方法及びプレスブレーキ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4582621B2 (ja) * 2003-06-23 2010-11-17 株式会社アマダ 曲げ加工装置
WO2006135030A1 (fr) * 2005-06-15 2006-12-21 Amada Co., Ltd Dispositif de pliage et procédé permettant de gérer la matrice, procédé permettant de disposer la matrice et procédé permettant de sélectionner l’élément de stockage de la matrice
AT510409B1 (de) * 2011-02-01 2012-04-15 Trumpf Maschinen Austria Gmbh & Co Kg Fertigungseinrichtung mit mitteln zur werkzeug-positionserfassung sowie verfahren zu deren betrieb
JP2014004604A (ja) * 2012-06-25 2014-01-16 Amada Co Ltd 金型搭載用ストッカ、金型格納装置、並びに金型・ハンド格納装置及びロボットによる金型交換方法とその制御装置
AT514324B1 (de) * 2013-07-11 2014-12-15 Trumpf Maschinen Austria Gmbh Reinigungseinrichtung für eine Biegemaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110899403A (zh) * 2019-12-13 2020-03-24 株洲华信精密工业股份有限公司 一种钣金件折弯装置

Also Published As

Publication number Publication date
EP3362201B1 (fr) 2023-06-14
AT517347B1 (de) 2017-01-15
WO2017064195A1 (fr) 2017-04-20
EP3362201C0 (fr) 2023-06-14
AT517347A4 (de) 2017-01-15

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