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
  • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
  • B21D11/22—Auxiliary equipment, e.g. positioning devices
• • 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
  • B21D37/00—Tools as parts of machines covered by this subclass
  • B21D37/14—Particular arrangements for handling and holding in place complete dies
• • 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
• • 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
  • B21D37/00—Tools as parts of machines covered by this subclass
  • B21D37/04—Movable or exchangeable mountings for tools

Definitions

• the invention relates to a manufacturing device according to the preamble of claim 1 and a method for operating the manufacturing device as described in the preamble of claim 17.
• a bending device for reducing the time required for the exact insertion of bending tools into tool receptacles of pressed bodies, the insertion being effected via an NC control mode.
• a plurality of sensors for detecting tool dimensions in a scanning element of a backgauge assembly which can be adjusted in three mutually perpendicular spatial directions receives the required tool data via a barcode and the backgauge has a barcode reader. For an exact positioning of the bending tool is achieved in the tool holder of the press bar.
• the document EP 1 600 257 A1 discloses a position detection device integrated in a bending tool receptacle which is fastened to a press beam of a bending press.
• the bending tool holder has in the support surface for the bending tool over a length of the tool holder extending integrated capacitive detection sensors on their Liberdeckung by the tool used in the tool holder bending tool depending on the transmitted by the Studentsdeckungswin tool length and the exact position of the tool in the direction of Longitudinal extent of the tool holder is detected and thus the position of the bending tool according to a predetermined desired position in the tool holder is feumblebar.
• EP 0 471 848 AI a backgauge assembly on a bending press for striking a workpiece to make a bending deformation between see bending tools is known, the backgauge assembly indicates an NC
• Adjusting device in three mutually perpendicular spatial directions adjustable stop fingers and is provided with a measuring and control device by means of the depending on metrologically detected contours of the bending tools any required derliche post-correction of the position of the attacks of the program according to predetermined positions before the implementation of the forming process takes place.
• the object of the invention is to provide a manufacturing device and a method for operating 5 such, with an automated and positionally accurate placement of the
• Press beam of the press brake can be made and subsequent corrective measures are avoided.
• the advantage of the solution according to the invention lies in a rapid and automated setup operation of the bending machine of a production device with the bending tools required for carrying out a predetermined forming operation with a high positioning accuracy of the bending tools in the corresponding tool holders of the pressware according to program-specific process specifications, thereby avoiding erroneous feeding and a high productivity of the manufacturing device is achieved by minimizing non-productive time and achieved high process quality and set-up and production times and thus process costs are reduced.
• the advantage here is that position deviations, as they can not be avoided in the operation of a handling device for automated setup operations of press beams by the different masses of the bending tools as well as other mechanical influences, by a target position of the bending tools upstream IST position detection of the bending tools In a reference position control parameters for the path control of the handling device are achieved and thus the insertion of the bending tools in accordance with the predetermined target position data in the tool holders with high positioning accuracy and trouble-free recording of the subsequent manufacturing process is achieved.
• FIG. 1 A manufacturing device according to the invention in a simplified representation
• Fig. 2 is a detail view of the erfi production proper manufacturing device, cut according to the lines II - II in Figure 3;
• Fig. 3 shows the detailed view of the manufacturing device according to the invention according to arrow III in
• FIGS. 1 to 3 show a production device 1 for producing bent-formed workpieces with a bending press 2, a handling device 3 and a tool storage 4.
• a machine position 5 of the press brake essentially comprises two side stands 7, which are connected at a distance from one another and are perpendicular to a footprint 6, and a table joist 8 connected to them.
• a press bar 9 is arranged in guide arrangements of the side stand 7 and is drivingly connected to drive means 10 arranged on the side stands 7 or the machine frame 5, for example hydraulic cylinders, electric spindle drives.
• tool holders 1 1, 12 In opposite, provided with clamping devices tool holders 1 1, 12 is a fitting with bending tools 13, for example, a bending die 14 in the tool holder 1 1 of the table beam 8 and a punch 15 in the tool holder 12 of the press bar 9, according to specifications for each intended to be formed workpiece and bending operation.
• the manufacturing device i for automated Werkteii- and tool transfer the handling device 3, for example, a multi-axis robot 16 with a multi-functional gripping device 17, for example, pliers gripper, suction pads, etc., on an end arm 18 of the multi-axis robot 36.
• the multi-axis robot 16 can be moved in a drive arrangement 19 in a direction parallel to a front side 20 of the table beam 8.
• a stop device 23 along a linear guide arrangement 22, which preferably consists of two in the guide arrangement 22 independently of one another and via a control and monitoring device 24 of the bending press 2 controlled, movable in a Z-axis stop slide 25 is formed.
• the stop slide 25 supports in a linear guide arrangement a driven and in the direction of adjustment of the stop slide 25 perpendicular direction - according to double arrow 26 - in an R- axis direction - adjustable finger carrier 27 with a stop finger 28 disposed thereon, in a Fühngsan extract the finger carrier 27, in to the adjustment direction of the finger carrier 27 perpendicular direction - according to double arrow 29 - is motor-adjustable in an X-axis direction.
• the actuation of the drives for the stop slide 25 in the Z-axis direction and the finger carrier 27 in the R-axis direction and the stop finger 28 in the X-axis direction takes place centrally via program instructions or from the data stored in a data memory 30.
• the manufacturing device 1 in the gripping region of the handling device 3 has the tool storage 4 with storage locations 31 for the storage of the bending tools 3, wherein it is advantageous, the tool storage 4 with its memory locations 3 1 for a chaotic storage and retrieval of bending tools 13 in the control and monitoring device 24 to administer
• the memory locations 31 are freely assignable to the bending tools 13, each of which has a unique identifier.
• the identifier of the bending tool 13 is included, for example, for an automated reading process by a mounted on the bending tool 13 barcode or electronic data carrier. Due to the management in the control and monitoring device 24 and the assignment of the memory locations 31 the respective bending tool 13 can be accessed according to the planning specifications of a forming process for a set-up of the bending press 2 on the provided bending tool 13 in the tool memory 4 with the handling device 3 and this the tool memory 4 are removed by means of the gripping device 17.
• the further measures for carrying out a setting-up operation for example the insertion of the bending die 14 into the tool holder 11 of the table beam 8, are shown in FIGS. 2 and 3 and the setting-up process will be described in detail below with reference to these figures.
• the gripping device 17, e.g. a Bangengreifer, detected bending die 14 is by means of stored in the data memory 30 of the control and monitoring device 24 Bru Kunststoffungsvorine cement the handling device 3 to X and / or Z and / or R coordinates in a, in the vicinity of a required target position 32 in a receiving groove 33 of the tool holder 1 1, in a fictitious reference position 34, according to the position shown in broken lines, controlled, which ensures that it can be seen as a result of deviations of an actual occupied position of the 35 Biegegesenkes 14 - as the full lines no collision between the bending die 14 and the tool holder 1 comes.
• the reference position 34 will be a position of the bending tool 13 in which the bending tool 13 is still outside the receiving groove 33, ie slightly above or below the tool holders 1 1, 12 in the R- axial direction befi det, but the X and Z Axial direction can be specified according to the predetermined nominal positions, whereby Nachpositionierwege are kept small due to the settling deviations.
• a position correction of the tool position is made from the actual position 35 to the required target position 32 via the path control of the handling device 3, whereby the insertion into the tool holder 11 takes place in the exactly required setpoint position 32 and the bending die 14 in the tool holder 1 is ifixed, the bending die 14 is released by the gripping device and thus the set-up process is completed.
• the detection of the position data of the actual position 35 of the bending die 14 according to the X and / or Z and / or R coordinates takes place according to a possible embodiment means s of the stop device 23 by a stop operation of the Anschiagfingers 28 on reference surfaces of the bending tool 13, e.g. at three mutually perpendicular tool surfaces 37, 38, 39 by adjusting the stop carriage 25 in the Z axis direction - according to double arrow 40, the finger carrier 27 in the R- axis direction - according to double arrow 41 and the stop finger 28 in the X axis direction - according to Double arrow 42,
• the measuring sensor 44 which has a measuring device 43, of the stop device 23, e.g. Proximity sensors of the Anschiagfingers 28 or motor current measuring sensors of drive means 45 for the adjustment of the Anschiagfingers 28, finger carrier 27 and Anschlagtschlittens 25, determined actual position data of the bending tool are in a measuring device 43, of the stop device 23, e.g. Proximity sensors of the Anschiagfingers 28 or motor current measuring sensors of drive means 45 for the adjustment of the Anschiagfingers 28, finger carrier 27 and Anschlagtschlittens 25, determined actual position data of the bending tool are in a measuring device 43, of the stop device 23, e.g. Proximity sensors of the Anschiagfingers 28 or motor current measuring sensors of drive means 45 for the adjustment of the Anschiagfingers 28, finger carrier 27 and Anschlagtschlittens 25, determined actual position data of the bending tool are in a measuring device 43, of the stop device 23, e.g. Proximity sensors of the
• the method does not necessarily presuppose the positioning of the bending tool 13 in the described three axial directions R, X and Z axis direction, but of course it is also the positioning of the bending tool 13 in only one or two or three axis directions as described.
• FIG. 4 shows a possible embodiment of the stop device 23 with the stop finger 28 for detecting the reference position data of the bending tool 13. From the for a setup process, held by the not further shown handling device in the ACTUAL position 35, with device-related deviations from a selected reference position, held bending tool 13, according to this embodiment, the X and Z position data by means of the measuring sensor 44 and the in abutment finger 28 in mutually perpendicular contact surfaces 47, 48 integrated ranged measuring means 43, by adjusting movements of the stop finger 28 at right angles to each other aligned tool reference surfaces 49, eg an end face 50 and a side surface 51- according to the double arrows 29, 40 - determined.
• the measuring means 44 form according to this embodiment, for example, piezo elements, proximity sensors, etc., whose signals are transmitted to the measuring sensor 44. Via an NC control and measuring system 52 of the stop device 23, the evaluation of the actual takes place in the IST. Position taken by the bending tool 13 X and Z position data from which starting a position correction is made to the required target position of the bending tool 13 for insertion into the tool holder not shown.
• a marking 53 for example a bar code 54
• the stop finger has, for example, a camera 55 for tool control, thereby avoiding a faulty setting-up operation with a bending tool 13 which is not suitable for a planned forming operation becomes.
• the use of such communication means is possible.
• the position of the bending tool 13 is thereby adjusted by a stopping operation of the stop finger 28 on a plane extending perpendicularly to the planes of the end face 50 and the side face 51, e.g. on a bottom 59 of the bending tool 13, determined.
• Another way of determining the position of the bending tool 13, in one, two or three spatial directions by an adjustment of the stop finger 28 on the reference surfaces of the bending tool 13, is in the measurement of motor current alsnähme at each authoritative for the adjustment of the stop finger 28 in the corresponding spatial directions drive means 45 of the stop device 23,
• the drive means 45, a current measuring sensor 60 is assigned to a current increase due to a stop operation of the stop finger 28 on the bending tool 13, a position signal to the measuring sensor 44 and the NC control and measuring system 52 outputs and from it the respective coordinate can be derived as an actual position.

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

Applications Claiming Priority (2)

Publications (2)

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ID=45932049

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (27)

Family Cites Families (30)

• 2011
  • 2011-02-01 AT ATA129/2011A patent/AT510409B1/de active
• 2012
  • 2012-02-01 WO PCT/AT2012/050014 patent/WO2012103565A1/fr active Application Filing
  • 2012-02-01 US US13/982,836 patent/US10265748B2/en active Active
  • 2012-02-01 EP EP12712537.5A patent/EP2670543B1/fr active Active
  • 2012-02-01 JP JP2013552061A patent/JP6023085B2/ja not_active Expired - Fee Related

Non-Patent Citations (1)

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