EP2043795B1 - Dispositif de butée pour presse à cintrer - Google Patents

Dispositif de butée pour presse à cintrer Download PDF

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Publication number
EP2043795B1
EP2043795B1 EP07784589A EP07784589A EP2043795B1 EP 2043795 B1 EP2043795 B1 EP 2043795B1 EP 07784589 A EP07784589 A EP 07784589A EP 07784589 A EP07784589 A EP 07784589A EP 2043795 B1 EP2043795 B1 EP 2043795B1
Authority
EP
European Patent Office
Prior art keywords
stop
bending
support
stop device
adjustable
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.)
Not-in-force
Application number
EP07784589A
Other languages
German (de)
English (en)
Other versions
EP2043795A1 (fr
Inventor
Alois Austaller
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
Priority to PL07784589T priority Critical patent/PL2043795T3/pl
Publication of EP2043795A1 publication Critical patent/EP2043795A1/fr
Application granted granted Critical
Publication of EP2043795B1 publication Critical patent/EP2043795B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D5/002—Positioning devices

Definitions

  • the invention relates to a stop device, as described in the preamble of claim 1.
  • WO 03/095125 A1 is a stop device as a backgauge of a manufacturing facility for bending workpieces made of blanks, especially sheet metal blanks, known in a finger carrier a linear in a direction perpendicular to a bending plane adjustable stop finger superimposed, which against the action of a spring assembly when supplying a bending deformation to be subjected to work from a Resting position is adjusted in a limited by a fixed stop stop position.
  • the assumed stop position is monitored and released via a control signal a program sequence for the forming process.
  • a method and apparatus is known as a backgauge of a press brake for automated feeding of a workpiece to be subjected to bending forming between bending tools.
  • the device are on independently from each other, parallel to a bending plane predetermined by the bending tools method stop members in the direction of the bending plane projecting stop fingers, arranged on a perpendicular to a footprint of the bending press axis, pivotable angle lever, one on the stop finger a Pivoting movement causing stop force is measured by means of force measuring sensor and takes place via evaluation of the measurement result in a control and regulating device, an end position of the workpiece with respect to the bending plane.
  • the object of the invention is to provide a stop device for a bending press, in particular a press brake, for positioning a workpiece to be reshaped between bending tools, in which an adjusting resistance of a stop element can be changed as a function of the part parameters.
  • a stop device 1 for positioning a, by a bending deformation between each other, in a table bar 2 and a relative to this adjustable bending beam 3 arranged bending tools 4, 5 to be reshaped workpiece 6, shown in a press brake, not shown.
  • the stop device 1 forms a so-called backgauge, which is arranged in the direction of insertion of the workpiece 6 - according to arrow 7 - behind a by the position of the bending tools 4, 5 certain bending plane 8 in a press room 9, preferably in three spatial directions - according to double arrow 10 - adjustable ,
  • the stop device 1 can be adjusted according to a placement of the table beam 2 and bending beam 3 in the required position with not shown for the adjustment drive devices and control means are provided and the positioning is often done automatically over program flow for each different bending operation.
  • the stop device 1 consists of a movable on a linear guide 12 Antschtragschlitten 13 on which a stop support 14 is mounted protruding ausragend in the direction of the bending plane 8 and in a linear guide assembly 15, a stop member 16 in a plane perpendicular to the bending plane 8 - according to double arrow 17th - Between one, limited by a stop means 18 front rest position and adjustable by a stop means 19 limited rear stop position stores.
  • the stop member 15 after inserting the workpiece 6 against the action of a spring assembly formed by a compression spring 21, in its stop position to stop the stop means 19, which forms an adjustable fixed stop.
  • the workpiece 6 is pressed during the insertion process against a contact surface 22 of the stop element 15 with an end face 23 until the stop position is reached.
  • the end face 23 is exactly aligned in a plane parallel to the bending plane 8 stop plane 24 to perform the bending deformation on the workpiece 6 exactly parallel to the end face 23.
  • One of the bending plane 8 facing end portion 25 of the stop element 15 is stepped stepped, whereby a perpendicular to the bending plane 8 aligned bearing surface 26 is formed on the stop element 15.
  • the bending plane 8 closer contact surface 25 is formed for a striking of the workpiece 6, which is used when the end face 23, the bending tool 4 only slightly surmounted.
  • the stop carrier 14 has in a recess formed between the guide assemblies 16 a sensing element 27, e.g. a proximity sensor, which faces an end face 28 of an end face 29 of a base part 30 of the stop element 15 and is adjusted so that the assumed stop position of the stop element 15 is detected.
  • a sensing element 27 e.g. a proximity sensor, which faces an end face 28 of an end face 29 of a base part 30 of the stop element 15 and is adjusted so that the assumed stop position of the stop element 15 is detected.
  • the sensor element 27 in the direction of adjustability according to - double arrow 15 - of the stop element 15 on the stop carrier 14 adjustably attached.
  • a retaining device 31 consisting of a can be acted upon by electrical energy from a power source 32 magnetic coil 33 with a bolt-shaped coil armature core 34 which extends through the solenoid coil 33 in a bore 36 with a cylindrical pin 37 and one, the base part 30 of the stop element 15 has a cooperating with the end face 29 printhead 38.
  • the cylinder pin 37 is surrounded by the biased compression spring 20, whereby the stopper member 15 in the idle state in a forward, i. the bending plane 8 facing rest position is positioned.
  • the cylindrical pin 37 has at a the print head 38 opposite end 39 a support flange 40 on which, as soon as a magnetic field is applied to an end face 41 of the magnetic coil 33 and thus in dependence of a magnetic field strength variable resistance movement of the coil armature core 34 and so that a movement of the stop element 15 sets against.
  • the retainer 31 formed by the solenoid coil 33 and the coil armature 37 can now on the one hand, a stop movement of the stop element - according to arrow 42 - opposing resistance by the biasing force of the compression spring 20 and additionally if necessary by applying the solenoid coil 33 with power from the power source 32 are regulated, the magnetic field strength is regulated by changing the current or the voltage.
  • the abutment device described is used as a so-called “fixed stop” for aligning the end face 23 of the workpiece 6 in accordance with an "X-axis” application wherein the stop element 15 is adjusted in the stop position against the stop means, in which a provided distance 43 of Bending plane 8 is reached by the stop plane 24.
  • This is monitored by the sensor element 27 on the detection of the reached stop position of the stop element 15, a control signal to a control device of the press brake to initiate the forming process by driving drive means of the press brake is started.
  • a distance 44 between the stop plane in the retracted state of the stop element 15 and a longitudinal center axis the linear guide 12 has a structurally predetermined dimension, the linear guide 12, on which the Antschtragschlitten 13 adjustable - according to double arrow 10 - is arranged in the direction perpendicular to the bending plane 8 direction - according to arrow 10th
  • a further embodiment of a fixed stop 47 between the stop element 15 and the stop carrier 14 is shown in broken lines, which is formed by a finger portion 48 of the stop member 15 has a greater width 49 than a width 50 of the stop carrier 14, whereby opposite end faces 51, 52 of the finger portion 48 and the stop carrier 14 form this fixed stop 47, which in this embodiment shown, in contrast to the previously described embodiment with the fixed stop 19, is not adjustable.
  • the abutment device 1 described above is used in pairs for workpieces 6 with a larger expansion on the press brake, in order to achieve a greater span between the abutment elements 15.
  • the sensor elements 27 of mutually parallel stop devices 1 for a final adjustment of the workpiece 6, for example on a gripper head handling axis for positioning the end face 23 of the workpiece 6 are exactly parallel to the bending plane 8 is the end face 23 in an inclined position to Move bending plane 8 against the end stop, for example, only one sensor element 27 is a signal to the control device of the press brake and a correction of the position by a rotary movement of the gripper head until a signal of the sensor element 27 of the further stop device 1 takes place. If this state is reached, the delivery is in the direction of the "X-axis" to end stop.
  • the stop device 1 is for the positioning of the workpiece 3 in two mutually perpendicular directions in space, as they are commonly referred to as "X-axis" and "Z-axis" provided.
  • the finger region 48 of the stop element 15 is designed as a double finger 54. This allows abutment of the workpiece 6 on a projecting finger 55 with a transverse edge 56 and with a longitudinal edge edge 57 on another finger 58 with the fingers 55, 58 in a fixed dimensional relationship to each other.
  • the stop element 15 is in the guide arrangement 16, which is provided, for example, by a linear guide element 59, e.g. Flat track, Gleit Operationss-, Rundstangen Operationss- or recirculating ball guide element, etc. is formed, adjustable substantially in the plane perpendicular to the bending plane 8 direction.
  • the adjustability is achieved by mounting the guide arrangement 16 or the guide element 59 in a pivot bearing arrangement 60 on the stop carrier 14.
  • a pivot axis 61 of the pivot bearing assembly 60 extends parallel to the bending plane 8 and perpendicular to the support surface 26 for the workpiece 6 in the finger region 48 of the stop element 15th
  • the abutment position is predetermined by fixed stops 62 which can be adjusted, for example by limiting a guide length of the guide arrangement 16 or adjustable, e.g. can be formed by means of screws.
  • feeler elements 27 e.g. Proximity sensors
  • a spring arrangement 63 is likewise provided in addition to a compression spring 20, for example in conjunction with a stop means, as a retaining means 64 which increases the adjustment resistance as needed.
  • This consists of a, on the pivotable guide assembly 16 and a guide member 59 having pivot base 65, spring-loaded by a compression spring 66 acting Pressure pin 67, wherein the spring force of the compression spring 66 is adjustable by means of a set screw 68.
  • this retainer 64 in tandem design, can be used with two parallel thrust pins 67 and one compression spring 66, respectively, whereby a multi-stage adjustment of the adjustment resistance is achieved e.g. Three-stage when different strong compression springs are used.
  • this described stop device with the stop possibility in two spatial directions, preferably in pairs for positioning of the workpiece 6 on a bending press used and that the positioning of the stop device is preferably automated.
  • an alignment of the work piece 6 in the so-called Z axis is usually carried out only on one of the stop devices 1, both being used in the X axis and, with the measurement results of the sensor elements 27, an exact alignment of the work piece 6 with respect to a predetermined one Bending line, which also does not necessarily have to run parallel to the bending plane 8, is achieved.
  • a further embodiment of the stop device 1 is shown in which the retaining device 31, for example, by a pressure medium, eg compressed air, pressure oil, etc. preferably via a pressure control member 70 with variable pressure from a supply line 71 acted upon actuator 72, in the illustrated embodiment by a pressure cylinder formed is.
  • the pressure cylinder is secured to the stop carrier 14 in the direction of adjustment of the stop element 15 in parallel aligned direction of action and preferably has a continuous piston rod 73 on which the stop element 15 facing the print head 38 is provided.
  • the piston rod 73 is provided with an adjusting nut 74 for the purpose of limiting the stroke.

Claims (23)

  1. Dispositif de butée automatique (1) pouvant être positionné par une installation de commande et de régulation d'une presse à cintrer, en particulier presse à plier pour le positionnement d'une pièce à déformer par un cintrage entre des outils de cintrage opposés (4, 5) disposés dans un sommier de table (2) et un sommier à cintrer (3) ajustable relativement à celle-ci, avec un chariot de support de butée (13) et avec un support de butée (14) faisant saillie sur le chariot de support de butée (13) dans une direction sensiblement perpendiculaire à un plan de cintrage (8) formé par les outils de cintrage (4, 5), et un élément de butée (15) déplaçable dans un agencement de guidage (16) s'étendant perpendiculairement au plan de cintrage (8), relativement au support de butée (14), entre une position de repos orientée vers le plan de cintrage (8) et une position de butée espacée de celle-ci contre l'effet d'un agencement de ressort (21), réalisant une zone de doigt (48), et avec au moins un élément de détection (27), par exemple capteur de proximité, détectant la position de butée de l'élément de butée (15), où est prévue une installation de retenue (31) opposant à un mouvement de butée de l'élément de butée (15) dans la position de butée une plus grande résistance de déplacement, caractérisé en ce que l'installation de retenue est reliée à l'installation de commande et de régulation de manière commutable et réglable.
  2. Dispositif de butée (1) selon la revendication 1, caractérisé en ce que l'installation de retenue (31) est disposée au support de butée (14).
  3. Dispositif de butée (1) selon la revendication 1, caractérisé en ce que l'installation de retenue (31) est disposé à l'élément de butée (15).
  4. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que l'agencement de guidage (16) pour l'élément de butée (15) est logé au support de butée (14) de préférence d'une manière pivotante par un agencement de palier de butée (60) et présente l'installation de retenue (31).
  5. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'un élément de guidage (59) de l'agencement de guidage (16) et l'installation de retenue (31) sont disposés sur une base de pivotement (65) de l'agencement de palier de pivotement (60).
  6. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'un axe de pivotement (61) de l'agencement de palier de pivotement (60) s'étend parallèlement au plan de cintrage (8) et perpendiculairement à une face d'application (26) de l'élément de butée (15).
  7. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que l'installation de retenue (31) est formée par une bobine magnétique (33) pouvant être chargée en énergie électrique d'une source d'énergie et d'un noyau d'induit de bobine en forme de boulon (34) agissant à l'élément de butée (15) contre le mouvement de butée.
  8. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'une force de champ magnétique produite par la bobine magnétique (33) est réglable.
  9. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que la bobine magnétique (33) peut être positionnée dans un moyen d'appui dans une direction s'étendant parallèlement à une direction de déplacement de l'élément de butée (15).
  10. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'un ressort de pression (20) de l'agencement de ressort (21) est disposé d'une manière précontrainte dans la direction opposée au mouvement de butée entre une tête de pression (38) du noyau d'induit de bobine (34) orientée vers une face de butée (25) à l'élément de butée (15) et la bobine magnétique (33).
  11. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que le noyau d'induit de bobine (34), à une extrémité opposée à la tête de pression (38), est muni d'une bride d'appui (40) s'appuyant à une face frontale (41) de la bobine magnétique (33) contre l'effet du ressort de pression (20).
  12. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que la bride d'appui (40) est fixée dans la direction d'une longueur du noyau d'induit de bobine (34) d'une manière déplaçable sur celle-ci.
  13. Dispositif de butée selon l'une des revendications précédentes, caractérisé en ce que l'installation de retenue (31) est formée par un moyen de positionnement (72), par exemple, vérin de pression, vérin de traction, etc., chargé par un milieu de pression, par exemple air comprimé, huile comprimée etc.
  14. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'une zone de doigts (48) de l'élément de butée (15) orientée vers le plan de cintrage (8) est réalisée comme doigt double (54).
  15. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que le doigt double (54) réalise deux plans de butée s'étendant perpendiculairement l'un à l'autre, dont un plan de butée est orienté parallèlement au plan de cintrage (8).
  16. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'un moyen de butée déplaçable, délimitant un mouvement de pivotement de l'élément de butée (15) dans la position de butée est disposé au support de butée (14).
  17. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que le moyen de butée, s'opposant au mouvement de pivotement, est muni d'un moyen de positionnement précontraint par le ressort de pression (21).
  18. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que, s'opposant au mouvement de pivotement, additionnellement au moyen de butée, au moins un moyen de retenue (64) est disposé au support de butée (15) ou à la base de pivotement (65).
  19. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que le moyen de retenue (64) est réalisé par un boulon de pression (67) guidé linéairement dans un boîtier et précontraint par un ressort de pression (66).
  20. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'une force de ressort de pression (66) est réglable.
  21. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce qu'il est disposé au support de butée (14) ou à l'élément de butée (15) un élément de guidage (27), par exemple capteur d'approche, détectant la position de butée du mouvement de pivotement.
  22. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que sont disposés entre le support de butée (14) et l'élément de butée (15) ou la base de pivotement, des butées fixes (62), de préférence réglables, pour délimiter le mouvement de pivotement en position de repos et en position de butée.
  23. Dispositif de butée (1) selon l'une des revendications précédentes, caractérisé en ce que l'agencement de guidage (16) est muni de moyens de butée (18, 19) délimitant d'une manière réglable le chemin de positionnement de l'élément de butée (15).
EP07784589A 2006-07-25 2007-07-24 Dispositif de butée pour presse à cintrer Not-in-force EP2043795B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07784589T PL2043795T3 (pl) 2006-07-25 2007-07-24 Urządzenie oporowe dla prasy do gięcia

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0125906A AT503790B1 (de) 2006-07-25 2006-07-25 Anschlagvorrichtung für eine biegepresse
PCT/AT2007/000358 WO2008011648A1 (fr) 2006-07-25 2007-07-24 Dispositif de butée pour presse à cintrer

Publications (2)

Publication Number Publication Date
EP2043795A1 EP2043795A1 (fr) 2009-04-08
EP2043795B1 true EP2043795B1 (fr) 2011-03-30

Family

ID=38617416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07784589A Not-in-force EP2043795B1 (fr) 2006-07-25 2007-07-24 Dispositif de butée pour presse à cintrer

Country Status (6)

Country Link
US (1) US8683835B2 (fr)
EP (1) EP2043795B1 (fr)
AT (2) AT503790B1 (fr)
DE (1) DE502007006846D1 (fr)
PL (1) PL2043795T3 (fr)
WO (1) WO2008011648A1 (fr)

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EP2586544A1 (fr) * 2011-10-25 2013-05-01 Trumpf Maschinen Austria GmbH & CO. KG. Machine-outil avec un dispositif de butée et procédé de fonctionnement de la machine-outil
FR3040643A1 (fr) * 2015-09-08 2017-03-10 Amada Europe Dispositif de contact mecanique, tel qu'une butee arriere pour une presse-plieuse

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AT509446B1 (de) * 2010-02-10 2011-12-15 Trumpf Maschinen Austria Gmbh Auflagevorrichtung für einen werkteil
AT509857B1 (de) * 2010-08-05 2011-12-15 Trumpf Maschinen Austria Gmbh Biegepresse mit einer werkteil-positionier- vorrichtung sowie ein verfahren zum betrieb
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
AT510689B1 (de) * 2011-03-07 2012-06-15 Trumpf Maschinen Austria Gmbh Verfahren zum positionieren eines werkstücks an einer abkantpresse
CN102319775B (zh) * 2011-08-29 2013-12-11 米路加（上海）板金机械技术开发有限公司 用于折弯机的后定位装置
US9156075B2 (en) * 2013-01-25 2015-10-13 Irwin Industrial Tool Company Lever bender and related method of use
CN103100598B (zh) * 2013-02-25 2015-01-21 宁波市令通电信设备有限公司 折弯机托板机构
JP5766244B2 (ja) * 2013-08-27 2015-08-19 株式会社アマダホールディングス スライド機構及びバックゲージ装置
JP6397729B2 (ja) * 2014-03-07 2018-09-26 株式会社アマダホールディングス バックゲージ装置及びバックゲージ装置の位置決め方法並びにプレスブレーキ
CN103894504B (zh) * 2014-04-03 2016-01-06 上海新力机器厂 用于大吨位折弯机的双x轴后挡料装置
CN104440951B (zh) * 2014-11-20 2017-04-05 珠海格力电器股份有限公司 一种机械手中置站
CN104492963B (zh) * 2014-12-18 2016-08-24 安徽力源数控刃模具制造有限公司 一种带限位功能折弯模具
CN107553882A (zh) * 2016-06-30 2018-01-09 吉林省正轩车架有限公司 有料片探测功能的热成型模具定位器
AT519203B1 (de) * 2016-10-14 2018-10-15 Trumpf Maschinen Austria Gmbh & Co Kg Hinteranschlag für eine Biegemaschine
CN106914522B (zh) * 2017-05-05 2019-02-19 海宁汇豪太阳能科技有限公司 一种卷圆机的挡料装置
CN107457326B (zh) * 2017-08-24 2022-12-06 山东嘉意机械有限公司 一种折弯机用防撞后挡指装置
CN107457287A (zh) * 2017-09-19 2017-12-12 无锡锡锻机床有限公司 感应式折弯机后挡料机构
CN109570372A (zh) * 2018-11-14 2019-04-05 苏州荣科精密机械有限公司 钣金件生产设备
CN109807202B (zh) * 2019-01-26 2023-08-22 汉群科技(无锡)有限公司 一种汽车的车载屏背板自动化折弯及屏幕测试一体化装置
CN109590398B (zh) * 2019-01-30 2020-04-28 福建渃博特自动化设备有限公司 一种板件调平方法及终端
CN111036726B (zh) * 2019-12-27 2021-07-02 东阳市大联电声器材有限公司 一种稳定型自动五金折弯装置
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2586544A1 (fr) * 2011-10-25 2013-05-01 Trumpf Maschinen Austria GmbH & CO. KG. Machine-outil avec un dispositif de butée et procédé de fonctionnement de la machine-outil
FR3040643A1 (fr) * 2015-09-08 2017-03-10 Amada Europe Dispositif de contact mecanique, tel qu'une butee arriere pour une presse-plieuse
EP3141309A1 (fr) * 2015-09-08 2017-03-15 Amada Europe Doigt de butee debrayable

Also Published As

Publication number Publication date
AT503790A4 (de) 2008-01-15
US20110048088A1 (en) 2011-03-03
EP2043795A1 (fr) 2009-04-08
DE502007006846D1 (de) 2011-05-12
WO2008011648A1 (fr) 2008-01-31
PL2043795T3 (pl) 2011-09-30
US8683835B2 (en) 2014-04-01
ATE503597T1 (de) 2011-04-15
AT503790B1 (de) 2008-01-15

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