EP2614900A1 - Dispositif de fabrication avec outils de pliage et outil de positionnement - Google Patents

Dispositif de fabrication avec outils de pliage et outil de positionnement Download PDF

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Publication number
EP2614900A1
EP2614900A1 EP13150834.3A EP13150834A EP2614900A1 EP 2614900 A1 EP2614900 A1 EP 2614900A1 EP 13150834 A EP13150834 A EP 13150834A EP 2614900 A1 EP2614900 A1 EP 2614900A1
Authority
EP
European Patent Office
Prior art keywords
rangefinder
positioning means
manufacturing device
bending
bending 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
EP13150834.3A
Other languages
German (de)
English (en)
Other versions
EP2614900B1 (fr
Inventor
Andreas Mitterlehner
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 EP2614900A1 publication Critical patent/EP2614900A1/fr
Application granted granted Critical
Publication of EP2614900B1 publication Critical patent/EP2614900B1/fr
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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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • 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
    • B21D5/0218—Length adjustment of the punch
    • 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
    • B21D5/0227—Length adjustment of the die

Definitions

  • the invention relates to a production device, in particular a press brake, for the transformation of workpieces and a method for equipping such a production device with bending tools according to the features in the preambles of claims 1 and 17.
  • Manufacturing facilities such as press brakes for forming workpieces made of sheet metal have two parallel aligned pressing bars, which are usually equipped with a plurality of paired bending tools.
  • the two pressing beams are adjusted or guided in a direction perpendicular to their longitudinal direction.
  • a case arranged between the bending tools workpiece is reshaped by the type of such successive pressing against each other of the bending tools.
  • the press beams usually have a tool receiving device formed by a groove into which the bending tools can be inserted and fixed therein.
  • Corresponding bending tools also referred to as a die on the one hand and a male die on the other hand - are to be arranged at a certain position along the longitudinal extension of the pressing bars or aligned with each other.
  • the type of bending tools and their position are defined in a so-called setup plan of a bending program.
  • the preparation of the production device is then carried out by an operator, in which the bending tools are fastened at the corresponding positions on the pressing bars. It must also be ensured that mutually corresponding bending tools (female and male) are aligned as exactly as possible.
  • This preparation of the production device which is also referred to as fitting, is usually associated with a correspondingly high amount of work.
  • the object of the invention is achieved by a manufacturing device for forming workpieces made of sheet metal with two parallel aligned pressing beams, which are adjustable by means of a drive device in a direction perpendicular to the longitudinal extent of the pressing beam direction relative to each other.
  • the press beams can be equipped with a variable number of bending tools, wherein the bending tools are arranged one behind the other in the longitudinal extension of the press beams.
  • the production device furthermore has a control device connected to the drive device for influencing the operating behavior of the production device and a positioning means for determining the position of the bending tools relative to the longitudinal extension of the pressing beam.
  • the positioning means includes a rangefinder based on the use of acoustic or electromagnetic waves. This has the advantage of a particularly flexible feasibility of the setup process and also that the bending tools themselves need not have separate and specially designed facilities for their accurate positioning.
  • the embodiment according to which the rangefinder has a beam direction which is aligned parallel with respect to the longitudinal extent of the pressing beam has the advantage that in this way the respective position can be determined directly by the value of the distance in the longitudinal extent of the pressing beam.
  • the positioning means comprises a holding device for the rangefinder, wherein the holding device with the rangefinder in a direction perpendicular to the longitudinal extension of the pressing beam direction and is vertically adjustable or after which the holding device with the rangefinder in a direction perpendicular to the longitudinal extent of the pressing beam Direction and horizontally adjustable, has the advantage of a secure adjustment for reliable position detection.
  • the training allows application of the positioning means also in production facilities where previously had to be made purely manual manual setup and positioning of the bending tools.
  • the design of the manufacturing device, according to which the positioning means comprises a laser rangefinder, allows a high accuracy in the position detection.
  • control device comprises an evaluation unit for an actual value of a distance of the bending tool measured by the rangefinder, or according to which the production device comprises a signal device for indicating a deviation of the actual value from a desired value of the distance, has the advantage that the operator is completely relieved of corresponding manually made measurements or evaluations.
  • the positioning means comprises a camera which is arranged on the holding device in the region of the rangefinder, the optical axis of the camera being aligned parallel to the beam direction of the rangefinder.
  • the bending tools have on its end face a suitable for identification of the bending tool marking. This allows the use of additional automated controls and thus avoiding errors when loading or inserting the bending tools in the manufacturing facility.
  • the object of the invention is also achieved independently by a method for equipping a production device with bending tools, wherein in a first step, a first bending tool is attached to a pressing beam and the rangefinder of the positioning means is aligned with the end face of the bending tool and wherein the beam direction of the rangefinder is aligned parallel to the longitudinal extent of the press beam.
  • the distance meter becomes an actual value of the distance of the bending tool measured and determined by the evaluation unit, a deviation of the actual value of a target value of the distance. The deviation is indicated by a signaling device and the position of the bending tool is changed until the reaching of the desired value of the distance from the signaling device is indicated.
  • a tolerance range for a permissible deviation of the actual value from the nominal value of the distance is entered for consideration in the evaluation unit on the operator terminal. This has the advantage that different requirements for manufacturing tolerances of products can be taken into account.
  • a manufacturing device 1 in particular press brake 2, for the forming, in particular sheet metal parts 3, for example, to housing parts, profiles, etc., shown.
  • Such manufacturing devices 1 are used in particular for the production of elongate profiles 4, for example, angle profile, U-profile, Z-profile, etc. with a generally very large length / aspect ratio.
  • a machine frame 5 of the manufacturing device 1 consists essentially of two parallel and spaced apart C-shaped stand side walls 6, 7, which supported directly or if necessary, for example via damping elements 8 on a footprint 9 or, in another embodiment, as exemplified, mounted on a common base plate 10, in particular welded thereto. Furthermore, the stator side walls 6, 7 are connected to one another at a distance 11 via wall sections 13 running perpendicular to a center plane 12.
  • the manufacturing device 1 has two opposing press beams 15, 16 which extend over a length 17, generally of the intended machine size or working length for bending the sheet metal parts 3 is fixed.
  • the contact surface 9 facing the press beam 15 is attached via a mounting assembly 19 on the machine frame 5, preferably directly to end faces 20 of the bottom plate 10 associated legs 21 of the C-shaped side cheeks 6, 7, in particular by means of welded connection.
  • On side surfaces 22, 23 of spaced apart from the footprint 9 legs 24 of the C-shaped stator side walls 6, 7 are acted upon by a pressure medium actuators 25, 26 of the drive assembly 27, formed from double-acting hydraulic cylinders 28, respectively.
  • Actuators 29, e.g. Piston rods of the hydraulic cylinder 28 are connected to the in guide assemblies 30 of the machine frame 5 in a direction perpendicular to the working plane 14 perpendicularly mounted press beam 16 via pivot bearings 31 and e.g. Bolt 32 drivingly connected.
  • the press beam 15 and the press beam 16 extend over the length 17 approximately symmetrically and in the direction perpendicular to the center plane 12, wherein the length 17 is slightly larger than the distance 11.
  • the press bars 15, 16 tool receiving devices 35 for supporting and releasable attachment of bending tools 36, 37 on.
  • these bending tools 36, 37 generally form a bending die 39 designed as a die 38 and a bending punch 41 designed as a male 40.
  • the tool receiving devices 35 in the press beams 15, 16 are on the one hand for releasably securing the bending tools 36, 37 formed, on the other hand, they form support surfaces 43 for transmitting the bending forces - according to arrow 44 - from.
  • the manufacturing device 1 has a positioning means 45 for determining a position of the bending tools 36, 37.
  • the positioning means 45 allows an accompanying measurement of the positions of the bending tools 36, 37 during the setup of the production device 1 by an operator. That is, after arranging one of the bending tools 36 on the pressing beam 15 or after arranging one of the bending tools 37 on the pressing beam 16, the positioning means 45 measures its relative position with respect to a longitudinal extent 46 of the pressing beam 15 or a longitudinal extent 47 of the pressing beam 16.
  • the Fig. 2 shows a frontal view of the manufacturing device 1 according to Fig. 1
  • the positioning means 45 comprises a laser rangefinder 48 with a beam transmitter 49 and a radiation receiver 50.
  • the laser range finder 48 and the beam transmitter 49 have a beam direction 51 which faces the laser range finder 48 End face 52 of a first bending tool 36 can be aligned.
  • the beam direction 51 of the laser rangefinder 48 is aligned parallel to the longitudinal extent 46 of the lower press beam 15 or parallel to the longitudinal extent 47 of the upper press beam 16.
  • the radiation emitter 49 and the radiation receiver 50 of the laser rangefinder 48 are attached to a holding device 53.
  • the holding device 53 is in turn adjustably mounted in a housing 54 of the positioning means 45, so that the laser rangefinder 48 can be transferred from a position in which the beam direction 51 is aligned with the end face 52 of the bending tool 36 in the lower pressing beam 15 in a position, in which the beam direction 51 is aligned with an end face 55 of the bending tool 37 in the upper pressing beam 16.
  • the latter position of the laser rangefinder 48 is indicated by dashed lines.
  • the Fig. 3 shows a side view of the manufacturing device 1 according to Fig. 2 with the positioning means 45 arranged thereon for determining a position of the bending tools 36, 37.
  • the positioning means 45 is arranged by means of its housing 54 on the machine frame 5.
  • the laser distance meter 53 holding device 54 is formed in the shape of a protruding arm, protruding from the housing 54.
  • the holding device 53 may be designed to be pivotable.
  • the adjustment of the holding device 53 with the laser rangefinder 48 can be done by manual movement and fixation of the holding device 53.
  • a servomotor is provided (not shown), so that the movement and fixing can also be automated.
  • the mounting of the holding device 53 in the housing 54 of the positioning means 45 may additionally also be designed such that an adjustment of the holding device 53 and the laser rangefinder 48 in the horizontal direction - according to double arrow 57 - can be done. This allows an even more accurate adjustment of the laser rangefinder 48 or the beam direction 51 in a position aligned with the bending tools 36, 37 or with the tool receiving device 35.
  • the production device 1 also has an operator terminal 60.
  • the operating terminal 60 usually also has a screen 62 with which, for example, machining programs can be graphically displayed.
  • the positioning means 45 or its laser rangefinder 48 can be operated via the control device 59 or the operating terminal 60. Like the operating terminal 60, the positioning means 45 is also conductively connected to the control device 59 for this purpose.
  • the control device 59 is equipped with an evaluation unit 63 preferably formed by a software. A value of a distance 64 of the end face 52, 55 of the bending tool 36, 37 is measured by the laser rangefinder 48 as an actual value and can be performed in the evaluation unit 63, a comparison with a preselected desired value of the distance 64.
  • the evaluation unit 63 is further adapted to a deviation of the actual value of the target value of the distance 64 with Help a signaling device 65 display.
  • the display by the signal device 65 may be formed by an optical or an acoustic but also by a combination of optical or acoustic display.
  • a first bending tool 36 is inserted into the lower pressing beam 15 by the operator and the laser range finder 48 is adjusted by moving the holding device 53 so that its beam direction 51 is aligned with the end face 52 of the bending tool 36.
  • the laser rangefinder After entering the value of the distance 64 on the operating terminal 60 and starting the measuring process, the laser rangefinder detects an actual value of the distance 64, the evaluation unit 63 determines the presence of a possible deviation of the actual value from the desired value and the operator indicated by the signaling device 65.
  • the actual value of the distance 64 is continuously recorded, as well as a corresponding evaluation with the evaluation unit 63.
  • the operator can now change the position of the bending tool 36 until the signal device 65 matches it. Value with the preselected desired value of the distance 64 is signaled. Subsequently, a new value of the distance 64 corresponding to its position can be input to the operating terminal 60 for a second bending tool 36, and the second bending tool 36 (shown in dashed lines) can be positioned in the tool receiving device 35.
  • a possibly existing deviation of the actual value of the new distance 64 from the desired value is indicated to the operator by the signal device 65 and the operator can change the position of the second bending tool 36 until the desired value of the distance 64 is reached or is signaled by the signaling device 65. This procedure is repeated for all further bending tools 36 until the bending tools 36 provided according to the setup plan are positioned corresponding to the tool length 42 and fixed in the tool receiving device 35.
  • the insertion and fixing of the bending tools 37 on the upper pressing bar 16 can be carried out in the same way as for the bending tools 36 on the lower pressing bar 15.
  • the laser rangefinder 48 by lifting the holding device 53 is aligned in an area in the beam direction 51 of the laser rangefinder 48 on the end face 55 of the bending tools 37.
  • the insertion, positioning and fixing of the tools 37 on the upper press beam 16 is analogous to the case of the bending tools 36 of the lower press beam 15 by the insertion and positioning of the bending tools 36 in the order starting with the largest value of the distance 64 towards each next smaller Value of the distance 64 is advanced.
  • the respective values of the distance 64 for the individual bending tools 37 can be predefined by inputting the respective individual values with the aid of the input device 64 of the operating terminal 60.
  • the values of the distance 64 are loaded into the control device 59 as an electronic data record with the setup plan or bending program. In this case, when the production device 1 is being set up with the bending tools 36, 37, the operator can select the individual values of the distances 64 on the operating terminal 60, so that individual input of individual values is not required.
  • Fig. 4 is a further and possibly independent embodiment of the manufacturing device 1 is shown, again for the same parts the same reference numerals or component names as in the previous Fig. 1 to 3 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 to 3 referred or referred.
  • the Fig. 4 shows a detail of the manufacturing device 1 with the positioning means 45 according to a further embodiment.
  • the positioning means 45 additionally has a camera 66, which is likewise arranged on the holding device 53 in the region of the laser rangefinder 48.
  • An optical axis 67 of the camera 66 is preferably aligned parallel to the beam direction 52 of the laser rangefinder 48.
  • the adjustment of the holding device 53 with the laser rangefinder 48 is motor-driven and can be controlled by the operating terminal 60 from.
  • An image recorded by the camera 66 can be displayed on the screen 62 of the operating terminal 60 and it is thus possible for an operator, by appropriate control on the control terminal 60, the readjustment of the laser rangefinder 48 on the end face 52 of the bending tool 36 on the one hand or on the end face On the other hand, it is particularly easy to carry out 55 of the bending tool 37.
  • the bending tools 36, 37 have at their end faces 52, 55 individual markings by which they are identified. These markings may also be detected by the camera 66 and displayed on the screen 62 of the operator terminal 60. This allows an additional control of the correct placement of the manufacturing device 1 with the bending tools 36, 37th
  • the markings on the end faces 52, 55 of the bending tools 36, 37 are automatically recognized by an evaluation software provided in the control device 59.
  • the markings may be formed, for example, by barcodes.
  • the Fig. 5 shows a further embodiment of the manufacturing device 1 with an alternative embodiment of the positioning means 45.
  • the housing 54 of the positioning means 45 an adapter 68 which is designed such that it is attached to the tool receiving device 35 of the press beam 15 and the press beam 16 can be.
  • the positioning means 45 formed in this way can therefore only be positioned or fixed to the production device 1 on the pressing beam 15, 16 as needed, that is, only for the duration of the actual setting-up process.
  • the adjustable holding device 53 of the laser rangefinder 48 this can turn between a position in which the beam direction 51 is aligned with the end face 52 of the bending tool 36, and a position in which the beam direction 51 is aligned with the end face 55 of the bending tool 37, reciprocated.
  • the positioning means 45 can also the positioning means 45 according to the embodiment according to Fig. 5 be controlled centrally by an operator from the operator terminal 60.
  • the positioning means 45 is connected to its power supply to the drive device 58 and for data exchange with the control device 59 via corresponding lines.
  • the adjustment of the positions of the bending tools 36, 37 accompanying the setting-up process of the production device 1 can again take place in the same way as described above with reference to FIG Fig. 1 to 4 described, done.
  • the distance measurement or the measurement of the distances 64 is carried out with the positioning means 45 using electromagnetic radiation, that is in this case using the laser rangefinder 48.
  • electromagnetic radiation that is in this case using the laser rangefinder 48.
  • the distance measurement can be carried out according to the principle of transit time measurement of the electromagnetic or acoustic waves.
  • a tolerance range of a maximum permissible deviation for the actual value of the distance 64 is taken into account in the evaluation by the evaluation unit 63.
  • a uniform tolerance range of +/- 1 mm could be specified for all values of the distance 64.
  • the specification of tolerance ranges in the setup plan can also be provided.
  • the respective tool stations can individually be given different tolerance ranges.
  • a tolerance range of +/- 1 mm can be set for a first tool station and a tolerance range of +/- 0.5 mm for another tool station, etc.
  • the operator it is also possible for the operator to set tolerance ranges for permissible deviations entered at the operator terminal 60 and these are taken into account by the evaluation unit 63.
EP20130150834 2012-01-12 2013-01-10 Dispositif de fabrication avec outils de pliage et outil de positionnement Active EP2614900B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA32/2012A AT511711B1 (de) 2012-01-12 2012-01-12 Fertigungseinrichtung mit biegewerkzeugen und positionierungsmittel

Publications (2)

Publication Number Publication Date
EP2614900A1 true EP2614900A1 (fr) 2013-07-17
EP2614900B1 EP2614900B1 (fr) 2015-03-11

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EP20130150834 Active EP2614900B1 (fr) 2012-01-12 2013-01-10 Dispositif de fabrication avec outils de pliage et outil de positionnement

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EP (1) EP2614900B1 (fr)
AT (1) AT511711B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014008019U1 (de) 2014-10-09 2016-01-25 Bystronic Laser Ag Biegepresse
AT516377A4 (de) * 2015-02-05 2016-05-15 Trumpf Maschinen Austria Gmbh Biegevorrichtung mit Messeinrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517056A1 (de) 2015-04-02 2016-10-15 Strasser Johann Sen Transportbehälter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60108116A (ja) * 1983-11-16 1985-06-13 Amada Co Ltd 折曲機における板材の折曲げ角度検出装置
DE4442381A1 (de) * 1994-11-29 1996-05-30 Gerd Ising Vorrichtung zur Lage- und Formerkennung von Oberwangenwerkzeugen an Schwenkbiegemaschinen und Gesenkbiegepressen
US5799530A (en) * 1996-12-20 1998-09-01 Amada Company, Limited Method of bending operations and bending system using the same
EP1914019A1 (fr) * 2006-10-18 2008-04-23 Warcom S.p.A. Presse plieuse et procédure correspondante de pliage de pièces

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034702A1 (de) * 1990-10-31 1992-05-07 Siemens Ag Verfahren und vorrichtung zur pruefung der aktiven werkzeuge von gesenkbiegemaschinen, insbesondere von biegestempeln
DE20217426U1 (de) * 2002-11-05 2003-01-16 Pilz Gmbh & Co Sicherheitseinrichtung für eine Maschine, insbesondere für eine Biegepresse
JP4397017B2 (ja) * 2003-09-25 2010-01-13 株式会社アマダ 曲げ加工装置
AT509980B1 (de) * 2010-12-20 2012-01-15 Trumpf Maschinen Austria Gmbh Fertigungsanlage mit werkzeugspeicher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60108116A (ja) * 1983-11-16 1985-06-13 Amada Co Ltd 折曲機における板材の折曲げ角度検出装置
DE4442381A1 (de) * 1994-11-29 1996-05-30 Gerd Ising Vorrichtung zur Lage- und Formerkennung von Oberwangenwerkzeugen an Schwenkbiegemaschinen und Gesenkbiegepressen
US5799530A (en) * 1996-12-20 1998-09-01 Amada Company, Limited Method of bending operations and bending system using the same
EP1914019A1 (fr) * 2006-10-18 2008-04-23 Warcom S.p.A. Presse plieuse et procédure correspondante de pliage de pièces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014008019U1 (de) 2014-10-09 2016-01-25 Bystronic Laser Ag Biegepresse
AT516377A4 (de) * 2015-02-05 2016-05-15 Trumpf Maschinen Austria Gmbh Biegevorrichtung mit Messeinrichtung
AT516377B1 (de) * 2015-02-05 2016-05-15 Trumpf Maschinen Austria Gmbh Biegevorrichtung mit Messeinrichtung

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AT511711B1 (de) 2013-02-15
AT511711A4 (de) 2013-02-15
EP2614900B1 (fr) 2015-03-11

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