EP2944390A2 - Outil de pliage et unité de changement associée - Google Patents

Outil de pliage et unité de changement associée Download PDF

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Publication number
EP2944390A2
EP2944390A2 EP15167131.0A EP15167131A EP2944390A2 EP 2944390 A2 EP2944390 A2 EP 2944390A2 EP 15167131 A EP15167131 A EP 15167131A EP 2944390 A2 EP2944390 A2 EP 2944390A2
Authority
EP
European Patent Office
Prior art keywords
tool
bending
longitudinal
guide
transverse
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
EP15167131.0A
Other languages
German (de)
English (en)
Other versions
EP2944390A3 (fr
EP2944390B1 (fr
Inventor
Egon Danninger
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 EP2944390A2 publication Critical patent/EP2944390A2/fr
Publication of EP2944390A3 publication Critical patent/EP2944390A3/fr
Application granted granted Critical
Publication of EP2944390B1 publication Critical patent/EP2944390B1/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
    • B21D5/02—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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/02—Die constructions enabling assembly of the die parts in different ways
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a bending tool, a tool change unit, a manufacturing plant, in particular for free-form bending of workpieces to be produced from sheet metal, and a method for tool change for a held on the production line bending tool with such a tool change unit, as in the claims 1, 4, 21 and 22 is described.
  • the AT 509 980 A describes a production facility for workpieces to be produced from a sheet metal, wherein the production facility comprises a bending press with press beams and tool receptacles formed on the press beams, a bending tool with bending dies and bending dies and a tool storage for at least one bending tool.
  • the bending tool comprises adapters in which the bending dies or the bending dies are kept positioned.
  • the tool storage comprises at least one guide arrangement with a linear rail, wherein the linear rail is arranged in alignment with respect to the tool holder immediately adjacent to this.
  • the adapter is guided starting from a storage position on the linear rail towards a working position on the tool holder adjustable both on the linear rail and on the tool holder. To carry out the tool change, an entire unit of tools must always be moved from the tool holder to the tool store or vice versa.
  • Another tool change unit with a arranged next to the bending machine of the manufacturing plant paternoster system is from the US 5,168,745 A known.
  • the present invention is based on the object, a bending tool, a tool changing unit for the bending tool, a production line with such a bending tool and a tool change unit, in particular for free-form bending of workpieces to be produced from sheet metal, as well as a method for tool change for a held on the production line bending tool to create or specify such a tool change unit, with which a space-saving rapid tool change can be performed.
  • An object of the invention is achieved by the features of claim 1.
  • the advantages resulting from the features of claim 1 lie in the fact that a bending tool can already be provided in which its head part and optionally its base part are provided with additional guide grooves so as not only a sufficient guidance but also a secure holding during the to achieve total adjustment movements within the tool change unit.
  • the additional provision of these groove-shaped recesses so not only a secure adjustment in the longitudinal extent of the bending tool but also in the transverse direction, in particular vertical direction thereto, are performed.
  • Another advantage is an embodiment according to claim 3, as a better guide accuracy can be achieved so as to be able to perform an undisturbed tool changing operation.
  • this can also be a quick loading of the production line done with a new set of bending tools.
  • a unit is created in which a secured adjusting movement, starting from the immediate transfer of the bending tool into the tool guideway, can be achieved until it leaves the respective bending tool.
  • an additional guide level is created so as to provide an exact guide and an associated holder of the bending tool in the tool holder housing during the adjustment.
  • the adjustment of the respective bending tool can be carried out from one longitudinal guide section to the other longitudinal guide section.
  • the displacement of the respective bending tool in the transverse guide section between the two longitudinal guide sections can be performed.
  • an embodiment according to claim 12 proves advantageous since an additional, improved guidance and thus support of the bending tool to be displaced in the transverse guide section can be achieved.
  • an embodiment according to claim 14 is also advantageous since it also makes possible a perfect adjustment of the respective bending tool in the transverse direction to its longitudinal extent in the tool guide housing in the area of the transverse guide section.
  • the possibility is thus created to provide sufficient space for the adaptation of the width of the transverse guide section to different bending tools. Furthermore, but also a compact design of the entire tool change unit can be created because additional guide elements can be arranged within the receiving space in the tool holder housing.
  • the individual adjustability of the width of the transverse guide section to the respective longitudinal dimension of the bending tool to be received in the transverse guide section is thus created.
  • a universally applicable tool change unit can be created.
  • the embodiment according to claim 18 allows a compact design with simultaneous, variable adjustment of the guide bar within the receiving space.
  • a bearing or guide possibility of at least one additional support element on the guide rods is made possible so as to provide sufficient guidance for the bending tool depending on the position of the guide rail and the associated width of the transverse guide portion in the area of the receiving space.
  • the embodiment according to claim 19 is advantageous, since an automatic positioning and alignment of the at least one support element between the guide strip in the remaining remaining receiving space can be created thereby.
  • the object of the invention is, however, independently solved by the features of claim 21.
  • the advantages resulting from the combination of features of this claim are that such a manufacturing plant can be created, which is formed on the one hand for receiving the corresponding bending tools and on the other hand by providing or arranging the tool change unit a quick and space-saving tool change can be performed on the production line , This can reduce downtime reduced or largely avoided skin. As a result, an economical operation of the manufacturing plant can be achieved.
  • a space-saving tool change unit can be created by the two parallel longitudinal guide portions and the transverse guide portion connecting them, with which a rapid insertion and / or removal of bending tools for manufacturing plant or away from this can be done.
  • a first of the longitudinal guide portions aligned with respect to one of the tool holders it can be done so a direct straight-line transfer of the bending tool to the tool change unit.
  • a transverse displacement is preferably already carried out in the further longitudinal guide section extending beyond the bending region.
  • a transfer can take place to a magazine or from a magazine to the tool change unit. Furthermore, this can also be placed behind the production line, in particular its machine set, saving space, the tool magazine. Furthermore, however, the tool change unit itself can serve as a buffer. In addition, it is also possible to use such tool changing units as needed on different machines or production equipment as needed in a row.
  • a manufacturing plant 1 is shown in highly simplified schematic representation, which is formed in the present case, in particular for the free-form bending of sheet metal to be produced workpieces 2 by means of bending. But it would also be possible to use a folding machine in the manufacturing plant 1 to carry out the bending process.
  • the manufacturing plant 1 used for bending in the present case comprises a bending press 3, in particular a press brake or press brake, for producing the workpieces 2 or workpieces between relatively adjustable bending tools 4, which in the present embodiment at least one, but usually more bending punch 5 and at least a, but usually comprise a plurality of cooperating bending dies 6.
  • the at least one bending punch 5 is arranged above the workpiece 2 to be manufactured on the bending press 3 and held there accordingly, in particular clamped.
  • at least one bending die 6 is held on the bending press 3, in particular clamped.
  • a machine frame 7 of the bending press 3 consists for example of a bottom plate 8 on the vertically upstanding, spaced from each other and mutually parallel side cheeks 9, 10 are arranged. These are preferably connected to each other by a solid, formed for example from a sheet metal part cross member 11 at their distance from the bottom plate 8 end portions.
  • the side cheeks 9, 10 are approximately C-shaped to form a free space for the forming of the workpiece 2, wherein a fixed, in particular on the bottom plate 8 upstanding pressing beam 13 is fixed to front end faces 12 of bottom flanges of the side cheeks 9, 10.
  • This stationary arranged and fixed pressing beam 13 may also be referred to as a press table, are arranged on the parts of the bending tool 4 and also held.
  • At front end faces 14 of the leg plate 8 remote leg is in linear guides 15 a to the table beam forming press bar 13 relatively adjustable further pressing bar 16, in particular a pressure bar, guided guided.
  • On opposite, mutually parallel end faces 17, 18 of the two pressing bars 13, 16 tool holders 19, 20 are arranged for assembly with the bending tools 4.
  • the one or more bending tools 4 may also be held with the interposition of an adapter, not shown, on the tool holders 19, 20, which is considered not favorable for the change process described below of individual components or the entire bending tool 4. With a corresponding adaptation but would also be the tool change process of the bending tools 4 described below conceivable.
  • the tool change units 49 proposed for this purpose according to the present invention are in the Fig. 1 on both in the direction of the pressing bars 13, 16 spaced from each other ends or end portions of the tool holders 19, 20 indicated by dashed lines schematically. But it would also be possible to provide only one tool changing unit 49, and to provide them at one of the ends or end portions of the tool holders 19, 20. Furthermore, at least one tool change unit 49 can be provided for the tool change for the lower press beam 13 and / or for the upper press beam 16 in each case.
  • the bending press 3 shown has as drive arrangement 21 for the adjustable pressing beam 16, namely the pressure beam, e.g. two powered by electric energy drive means 22, which are conductively connected to a fed from a power grid 23 control device 24.
  • the operation of the bending press 3, in particular also the changing operation of the bending tool 4 can be controlled via a line-connected input terminal 25 connected to the control device 24.
  • the drive means 22 are preferably motorized spindle drives 26, as they are generally known, of which adjusting means 27 for a reversible actuating movement of the upper beam formed by the pressure bar 16 with this, for example, are drive-connected.
  • the manufacturing plant 1 can also be simplified here in the Fig. 2 comprise manipulator 28, which at least a piece thereof removes from a schematically indicated supply stack 29 of sheets to be deformed orproofkantenden and spends in the work area of the bending press 3.
  • the manipulator 28 in turn includes a simplified gripping tongs 30, which in turn has gripping fingers 31, 32.
  • the gripping fingers 31, 32 each have clamping surfaces on the side facing the workpiece 2 to be produced.
  • the gripper fingers 31, 32 of the gripping tongs 30 is a corresponding gripping and later ensured due to the clamping movement sufficient support for the workpiece to be produced from the sheet 2.
  • the two pressing bars 13, 16, in particular their tool holders 19, 20, or the bending tool 4 held thereon with his or her bending punch 5 and bending die 6, when viewed in the longitudinal direction of the pressing bars 13, 16 define a working plane 33 extending therebetween.
  • the working plane 33 preferably runs centrally with respect to the pressing bars 13, 16 or the tool holders 19, 20 arranged on them.
  • a vertically oriented plane is understood here in which a bending region 34 defined by the bending tool 4 is arranged or formed
  • Bending area 34 is understood here to be that area which serves to form the workpiece 2 to be produced from the sheet, which is usually still flat, or to further process an already pre-formed workpiece 2 by forming at least one additional fold.
  • the bending region 34 is usually in particular congruent in the working plane 33 and is by the cooperating Bauwell. Tool components of the bending tool 4, namely the one or more bending punch 5 and the bending die or the 6, formed or defined.
  • the bending region 34 usually forms a preferably rectilinear bending line on the workpiece 2 to be produced, wherein on both sides of this each leg forms as a result of the bending process performed.
  • the legs arranged on both sides of the bending tool 4 enclose between them a bending angle. This bending angle is measured in a reference plane aligned perpendicular to the bending line.
  • the reference plane for its part, is furthermore preferably also aligned with respect to the working plane 33 in the vertical direction.
  • the machine frame 7 of the bending press 3 is shown only very simplified, and it is also possible to use different embodiments thereof. So could e.g. the machine frame 7 and the machine body may be formed with a free stator passage. In this case, the tool holders 19, 20 would be able to be received between the side cheeks 9, 10 or side parts. In another embodiment of the machine frame 7 and the machine body, no free stator passage is possible, whereby the tool holders 19, 20 can not be received between the side walls 9, 10 or side parts.
  • FIG. 3 an optionally independent embodiment of the bending tool 4, in particular the bending punch 5 is shown, again with the same parts the same reference numerals or component designations as in the preceding Fig. 1 and 2 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 and 2 referred or referred.
  • the bending tool 4 shown here in particular the bending punch 5 to be accommodated on the bending press 3 on the upper pressing beam 16 in the tool receptacle 20, is shown only by way of example for a multiplicity of possible, different embodiments. It should be noted that the bending tool 4 may also be formed from a plurality of bending dies 5 and / or Biegegesenken 6, which can be assembled for the respective bending operation in a corresponding number in the longitudinal direction of the press bar 13, 16 in a row to form a tool set.
  • the bending punch 5 of the bending tool 4 shown here can have a tool arm 35 which defines a bending section 36, in particular a bending edge 37, extending in the direction of the bending region 34 of the workpiece 2 to be manufactured.
  • this may have at least one, but also a plurality of legs 38, which may have an angular orientation to one another when viewed in cross-section.
  • the bending section 36 with its bending edge 37 thus forms an end region of the tool arm 35 or of the bending punch 5 itself.
  • a base part 39 is provided on the side facing away from the bending section 36, wherein subsequently to this at the side also averted from the bending section 36 side, a head part 40 is formed or arranged.
  • the head part 40 is used for insertion into the tool holder 19, 20, wherein the one or more bending tool 4 forming bending punch 5 and Biegegesenke 6 can be kept clamped in a known manner in the tool holder 19, 20.
  • the base part 39 has on its side remote from the tool arm 35 at least one support shoulder surface 41, which is preferably surmounted by the head part 40 on the side facing away from the bending section 36 side.
  • the base part 39 is further limited in the direction of the bending region 34 and the bent portion 36 formed on the tool arm 35 on both sides in each case by base part end faces 42.
  • the bending tool 4, in particular the bending punch 5 and / or the bending die 6, can be composed of a single component or even of several components or tool components to form a structural unit.
  • At least one guide groove 43 is arranged or formed in at least one of the base part end faces 42 in the vicinity of the support shoulder surface 41 or the beginning of the head part 40.
  • the at least one guide groove 43 is provided in both base part end faces 42.
  • the head part 40 is placed on the base part 39 and projects, if present, the at least one support shoulder surface 41 on the side away from the tool arm 35 side. Furthermore, the head part 40 is bounded circumferentially by head part side surfaces 44 extending in the direction of the bending region 34 or the bending edge 37, as well as head part end faces 45 formed on both sides thereof. On the side facing away from the base part 39 side of the head part 40 is limited by a top surface 46 and thus determined in its spatial form.
  • At least one longitudinal groove 47 extending in the direction of the bending region 34 or the bending edge 37 is arranged or formed in at least one, but preferably both, of the head part side faces 44.
  • at least one transverse groove 48 is arranged or formed at least in one of the head part end faces 45.
  • the at least one longitudinal groove 47 and the at least one transverse groove 48 of the support shoulder surface 41 are arranged at an equal distance therefrom. This ensures that the at least one transverse groove 48 is then arranged directly adjacent to one of the end regions of the longitudinal grooves 47 and thus a direct, aligned transition between the grooves is formed without interruption.
  • at least one longitudinal groove 47 is provided on both head part side surfaces 44, and at least one transverse groove 48 is provided on each of the two head part end faces 45.
  • the longitudinal groove 47 and / or the transverse groove 48 and / or the guide groove 43 has a V-shaped cross-section.
  • the at least one transverse groove 48 and the at least one guide groove 43 can furthermore be aligned parallel to one another and with respect to the support shoulder surface 41 running parallel thereto.
  • the headboard end face 45 may be aligned with respect to the base member end face 42, thereby forming a planar transition between these two faces on the face of the punch 5.
  • the at least one bending punch 5 of the bending tool 4 can be displaced in a longitudinal direction or longitudinal direction of the respective grooves in a parallel plane formed or formed by the support shoulder surface 41. be adjusted. This will be described and explained in more detail in the following figures.
  • Fig. 4 to 8 is a possible and possibly independent embodiment of the tool changing unit 49 shown for changing tool components of the bending tool 4 described above on the production line 1, wherein in turn for the same parts the same reference numerals or component designations as in the preceding 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 at least one tool change unit 49 was in the Fig. 1 already shown schematically simplified. In some figures, for better clarity, a tool holder housing 50 of the tool changing unit 49 has been indicated only in dotted lines, so as to obtain a better insight to those within the same received or arranged components or items.
  • the tool change unit 49 which has been indicated only schematically above and which is shown in more detail in the following figures, serves to be arranged on at least one end area of a tool holder 19, 20 of the production system 1 and is used for temporarily receiving the bending tool 4, in particular at least one bending punch 5 or at least a bending die 6, at least for the duration of the change process provided.
  • the tool change unit 49 is itself composed of a plurality of component components and in the present embodiment comprises the tool holder housing 50, in which a tool guideway 51 is arranged or formed.
  • the tool holder housing 50 is preferably block-shaped and has an upper side 52, a lower side 53 arranged at a distance therefrom, and first and second end faces 54, 55 extending therebetween and first and second longitudinal side surfaces 56, 57.
  • the tool holder housing 50 is limited in its longitudinal extent by the two spaced apart first and second end surfaces 54, 55 in the present embodiment. In the transverse direction, the two longitudinal side surfaces 56, 57 limit the tool holder housing 50.
  • the tool guide track 51 described above is formed in this embodiment in a view from below - ie in the direction of the bottom 53 - U-shaped extending and recessed in the bottom 53 of the tool holder housing 50 is formed or extends from the bottom 53 in the direction on the top 52.
  • the tool guideway 51 in this embodiment comprises a first longitudinal guide portion 58 and a second longitudinal guide portion 59 and the two longitudinal guide portions 58, 59 interconnecting transverse guide portions 60.
  • the two longitudinal guide portions 58, 59 are preferably parallel to each other and in the transverse direction distanced from each other extending in the tool holder housing 50th arranged or formed.
  • Each of the two longitudinal guide sections 58, 59 has in each case a first end region 61 or 62 in the region of the first end face 54.
  • Each of the two first end regions 61, 62 of the two longitudinal guide sections 58, 59 terminates in the first end face 54 of the tool receiving housing 50 and is thus designed to be open.
  • the two longitudinal guide sections 58, 59 end in front of the second end face 55 within the tool holder housing 50.
  • the two Longitudinal guide sections 58, 59 each have second end regions 63, 64 on their side facing the second end face 55. In the region of the respective second end regions 63, 64 of the two longitudinal guide sections 58, 59, these are connected to one another via the transverse guide section 60.
  • the longitudinal guide sections 58, 59 and the transverse guide section 60 are arranged and extend in the region of the underside 53 of the tool holder housing and extend into this over a depth and each terminate at a base surface 65.
  • first and second longitudinal guide portions 58, 59 sections each bounded by formed by the tool holder housing 50 inner longitudinal side walls 66, 67 and outer longitudinal side walls 68, 69.
  • longitudinal guide elements 70 are arranged or formed.
  • the one or more longitudinal guide elements 70 have in the present embodiment in cross-section seen in an approximately triangular shape, which is formed gegen Dermat with respect to the transverse groove 48. Since, as already described above, the transverse grooves 48 are arranged running in a common plane in parallel alignment with respect to the support shoulder surface 41, the longitudinal guide elements 70 shown here also form or define a common first guide plane 71.
  • the bending tool to be changed 4 in alignment alignment of the first longitudinal guide portion 58 to one of the tool holders 19, 20 to adjust the bending tool to be changed 4 in the first longitudinal guide portion 58 into or spend , This can be done by appropriate slide or manipulators, which are not shown here.
  • the at least one bending tool 4 or its individual components is adjusted along the first longitudinal guide section 58 until it has been brought into the region of the transverse guide section 60. In order to prevent mutual obstruction of individual bending tool 4, only one of the bending tools 4 should always be present in the region of the transverse guide section 60.
  • At least one adjusting device 72 is provided or arranged in the region of the transverse guide section 60. This one is best from the Fig. 5 and 6 to see.
  • the adjusting device 72 By means of the adjusting device 72, the bending tool 4 accommodated or to be received in the tool receiving housing 50 can then be moved or moved either from the first longitudinal guide section 58 onto the second longitudinal guide section 59 or from the second longitudinal guide section 59 onto the first longitudinal guide section 58.
  • the adjusting device 72 can be operated with a wide variety of drive means. For example, cylinder piston assemblies, servo motors, worm drives or the like can be used.
  • the bending tool 4 to be changed is moved from the tool receptacle 19 or 20 into the first longitudinal guide section 58 up to the transverse guide section 60.
  • the bending tool 4 held there in the tool changing unit 49 is adjusted by the adjusting device 72 from the first longitudinal guide section 58 by adjustment in the transverse guide section 60 to the second longitudinal guide section 59.
  • the bending tool 4 to be changed is located behind the working plane 33 already described above and can be transferred from there to a further longitudinal displacement in the second longitudinal guide portion 59, for example, to a memory or magazine, not shown.
  • the adjusting device 72 may comprise a guided in the tool holder housing 50 mounted actuator 73 with at least one arranged at one end driving element 74.
  • the actuator 73 extends in the direction of the transverse guide portion 60.
  • the driving element 74 forms an outer wall portion of the first and / or second longitudinal guide portion 58, 59 before the start of the tool change.
  • the carrier element 74 projects in the direction of the longitudinal extension of the transverse guide section 60 or the actuating element 73 projecting retaining element 75 is provided or arranged.
  • the holding element 75 is preferably also arranged in the first guide plane 71 and engages both in the transfer of the first longitudinal guide portion 58 on the transverse guide portion 60 and in the course of the transverse displacement of the bending tool 4 in the arranged on the head part 40 longitudinal groove 47 a.
  • the transverse guide section 60 is delimited in the transverse direction with respect to its longitudinal extent and in the direction of the two longitudinal guide sections 58, 59 by first and second side walls 76, 77 arranged spaced apart from one another.
  • first and second side walls 76, 77 arranged spaced apart from one another.
  • at least one first transverse guide element 78 and / or can be attached to the first side wall 76 the second side wall 77 at least one second transverse guide element 79 may be arranged or formed.
  • the at least one transverse guide element 78, 79 projects beyond the respective side wall 76 or 77 in the direction of the respectively opposite side wall 77 or 76.
  • first transverse guide elements 78 can be arranged or provided on the first side wall 76 of the transverse guide section 60 of the tool guide track 51.
  • the transverse guide element 78 lying closer to the base surface 65 is in turn arranged to extend in the first guide plane 71 described above.
  • the second of the first transverse guide elements 78 is arranged further away from the base surface 65 in the direction of the underside 53.
  • This further first transverse guide element 78 is provided in order to be able to engage in the guide groove 43 arranged in the base-part end face 42 of the base part 39.
  • the base transverse surface 65 closer to the first transverse guide element is provided for engaging in the arranged on the head part 40 transverse groove 48.
  • the first side wall 76 of the transverse guide portion 60 of the second end face 55 of the tool holder housing 50 is arranged closer than the second side wall 77 of the transverse guide portion 60. Since the tool guideway 51, in particular the two longitudinal guide portions 58, 59 and the transverse guide portion 60 before the second end face 55 of the tool holder housing 50 ends, here the first side wall 76 is formed by the tool holder housing 50 itself. So that's the other of the first cross guide elements 78 arranged extending in a second guide plane 80 and thus further spaced from the base surfaces 65 of the longitudinal guide portions 58, 59 as the closer thereto first guide plane 71st
  • the second side wall 77 of the transverse guide portion 60 - ie those which is further distanced from the second end face 55 of the tool holder housing 50 thereof - arranged or formed on a separate guide rail 81.
  • the guide rail 81 extends here in the longitudinal extent of the transverse guide section 60 between the two inner longitudinal side walls 66, 67 of the first and second longitudinal guide sections 58, 59.
  • the guide rail 81 further forms first partial surfaces of the two inner longitudinal side walls 66 and 67 at their mutually distanced front ends , At these two first partial surfaces of the guide rail 81, it is provided here that guide elements 82 projecting in the two longitudinal guide sections 58, 59 are arranged or formed.
  • the at least one second transverse guide element 79 and the two guide elements 82 in the first guide plane 71 are arranged lying or extending.
  • the transverse guide portion 60 seen in the direction of the longitudinal guide portions 58, 59, between its first and second side wall 76, 77 has a width which at least approximately a length of the male bending tool 4 in his head area, in particular its head part 40 corresponds. Since the individual bending tools 4, in particular the bending punch 5 and / or the bending die 6, may have a different length between their base part end faces 42 and / or their head end faces 45, the width of the transverse guide section 60 is also at this Dimensions adjustable and / or customizable form.
  • a receiving space 83 is formed or arranged in the tool receiving housing 50.
  • the receiving space 83 extends in the direction of the first end face 54 of the tool receiving housing 50 and also terminates in front of the first end face 54 on a housing inner surface.
  • the receiving space 83 extends continuously between the first and the second longitudinal guide portion 58, 59, in particular its Inner longitudinal side walls 66, 67.
  • the receiving space 83 can also reach up to the base surfaces 65 of the two longitudinal guide sections 58, 59 and possibly also of the transverse guide section 60.
  • the guide rail 81 is received in the receiving space 83 and additionally guided adjustably in the direction of the width of the transverse guide section 60. Furthermore, it can still be seen in the region of the base surface 65 of the receiving space 83 that at least one guide recess for the driving element 74 and / or the adjusting element 73 of the adjusting device 72 is arranged in the tool receiving housing 50.
  • the receiving space 83 is correspondingly large, it is further provided here that at least one strip-shaped support element 84 is arranged or provided in the receiving space 83 on the side of the guide rail 81 facing away from the transverse guide section 60 ,
  • the formation of the support element or 84 can be carried out analogously to the provision of the second transverse guide element 79, as has been previously described for the guide rail 81.
  • the at least one support element 84 extends between the two inner longitudinal side walls 66, 67 of the two longitudinal guide portions 58, 59.
  • the at least one support member 84 as well as the guide rail 81 is strip-shaped, which forms at least one support member 84 each at its mutually averted End second faces of the two inner longitudinal side walls 66 and 67 of the first and second longitudinal guide portion 58, 59 from.
  • a plurality of such support members 84 are provided, which are spaced one behind the other and in the longitudinal extension of the two longitudinal guide portions 58, 59 so as to form in the region of the receiving space 83 at least partially partial surfaces of the inner longitudinal side walls 66 and 67 of the two longitudinal guide portions 58, 59 and a guide and to obtain support for the respective bending tool 4 accommodated in the first and / or second longitudinal guide section 58, 59.
  • the guide rail 81 is preferably fixedly connected in each case to at least one dedicated guide rod 85 in the region of its front ends.
  • the width adjustment can by an adjusting device, not shown, if appropriate in cooperation with the control device 24.
  • two guide rods 85 are provided so as to allow sufficient, tilt-free guidance accuracy of the guide rail 81 in the receiving space 83.
  • the guide rods 85 extend from the guide rail 81 in the direction of the first end face 54 of the tool holder housing 50. Furthermore, the guide rods 85 are guided adjustably guided guided in the tool holder housing.
  • the at least one support element 84 can also be mounted on the guide rods 85 in the direction of the width of the transverse guide section 60.
  • At least one support element 84 is viewed in the direction of the width of the transverse guide section 60 on both sides an automatically acting adjusting means 86 is arranged.
  • the adjusting means 86 may be formed for example as a spiral spring and be penetrated by the one or more guide rods 85. This makes it possible to hold the at least one support element 84 in the receiving space 83 in a predetermined relative position and to divide the remaining remaining receiving space 83 preferably evenly when adjusting the guide bar 81.
  • Another possibility, which may be independent of one another, for positioning the at least one support element 84 in the longitudinal extent of the receiving space 83 would also be to dispense with the automatically acting adjusting means 86 and to form or provide a mechanical adjustment with limit stop.
  • the adjustment and / or adjustment of the at least one support element 84 in the remaining space of the receiving space 83 between the guide rail 81 and the housing space delimiting the receiving space 83 can be such that the at least one support element 84 is additionally guided on at least one guideway, not shown, wherein the at least one guideway terminates at a predefined distance in front of the first side wall 76 of the transverse guide section 60.
  • a guide member of the support member 84 engage, with which a stop limit can be made after a predetermined adjustment.
  • the at least one guideway is preferably formed in the tool holder housing 50 or arranged thereon.
  • the longitudinal adjustment For example, the support member 84 may be made directly by the bending tool 4 inserted into the tool guideway 51. If a plurality of support elements 84 are arranged in the longitudinal direction of the longitudinal guide sections 58, 59 one behind the other in the remaining receiving space 83, at least one own guide track is to be formed or provided for each of these individual support elements 84.
  • the longitudinal extension of the individual guideways is to be determined separately for each of the individual support elements 84, so that an approximately equal distribution of the remaining free space in the receiving space 83 occurs in the case of a plurality of support elements 84.
  • the adjusting movement of the individual support elements 84 can be effected by the components or tools forming the bending tool 4 during their displacement in the tool changing unit 49.
  • the support element 84 could be displaced from a starting position in the region of the first end face 54 facing the housing inner surface of the receiving space 83 to the starting position provided for this purpose.
  • the support element 84 When pushing out the same bending tool 4 along the second longitudinal guide portion 59 can then be displaced by its back to its initial positions by this or the support members 84 of their leadership positions.
  • the displacement of the individual bending dies 5 and / or bending dies 6 forming the bending tool 4 can be e.g. by a revolving conveyor element, such as a conveyor chain, with appropriately arranged or formed thereon conveyor fingers. An intermittent conveying process is possible.
  • pivotally mounted pivot holder 87 is arranged in an outer corner region between the first longitudinal guide section 58 and the adjoining transverse guide portion 60.
  • the pivot holder 87 forms in its pivoted-in holding position on its side facing the first longitudinal guide section 58 a third partial surface of the inner longitudinal side wall 66 of the first longitudinal guide section 58.
  • the head section 40 of the bending tool 4 is supported at least in regions on the third partial surface of the pivot holder 87 in the region of the first inner longitudinal side wall 66.
  • the opposite side of the head in the region of the outer longitudinal side wall 68 is at least partially supported on the tool holder housing 50, in particular the outer longitudinal side wall 68.
  • the driving element 74 of the adjusting device 72 also serve as a contact surface.
  • a pivot holder element 88 projecting beyond the third part surface formed on the pivot holder 87 can be provided or arranged on the pivot holder 87.
  • This pivot holder element 88 serves as a guide element and may be formed in its cross section as the longitudinal guide element 70. If now the bending tool 4, starting from the end of the first longitudinal guide portion 58 along the transverse guide portion 60 toward the second longitudinal guide portion 59 are shifted, the pivot holder 87 is to be pivoted or adjusted from its holding position to a release position, in which case the third face of the pivot holder 87 is a partial section the first side wall 76 of the transverse guide portion 60 forms.
  • the projecting pivot holder element 88 further forms a guide element for the head part 40.
  • the pivot holder member 88 forms together with the pivot holder 87 a related, one-piece component.
  • the process or the method for tool change for a bending tool 4 held on the production plant 1, in particular the at least one bending punch 5 and / or the at least one bending die 6, can be carried out with the previously described tool change unit 49, as explained below.
  • the tool holder housing 50 having the tool guide path 51 disposed therein is provided.
  • the tool guideway 51 in this case comprises the first and second longitudinal guide section 58, 59.
  • Deren first End portions 61, 62 each open in the first end face 54 of the tool holder housing 50 and thus form openings in the same.
  • the two longitudinal guide sections 58, 59 are connected to one another in the area of their second end regions 63, 64 via the transverse guide section 60 extending therebetween. If the tool holder housing 50 prepared, this is immediately laterally disposed on an end portion of the tool holders 19 and / or 20 of the manufacturing plant 1, wherein preferably the first longitudinal guide portion 58 is aligned with respect to the tool holder 19 and / or 20.
  • At least one of the bending dies 5 or one of the bending dies 6 is displaced from the tool holder 19, 20 into the first longitudinal guide section 58 up to the transverse guide section 60.
  • the head part 40 of the bending tool 4 is at least partially guided in the first longitudinal guide portion 58 in its longitudinal extent in the tool holder housing 50.
  • the width of the transverse guide portion 60 either before introducing the displaceable part of the bending tool 4 to the respective longitudinal dimension of the head part 40 between its head end faces 45 adapt or the position of the guide rail 81 in the course of the insertion movement of the part to be displaced of the bending tool. 4 set by yourself.
  • the pre-positioning of the guide rail 81 can be done by an actuator not shown in detail and / or by the manipulator 28.
  • a corresponding fixation or locking of the position of the guide rail 81 can be provided. So could e.g.
  • the width of the transverse guide portion 60 and optionally held in this position becomes.
  • the pivot holder 87 Before the transfer or the beginning of the adjustment in the transverse guide portion 60 of the pivotally mounted pivot holder 87 has been pivoted into a holding position, in which the head part 40 is held on its the second longitudinal guide portion 59 facing side of this. Subsequently, the adjustment of the bending punch or the bending die from the first longitudinal guide section 58 via the transverse guide section 60 to the second longitudinal guide section 59 takes place. Here, too, a corresponding Guide the bending tool 4 in the region of the two side walls 76, 77 of the transverse guide portion 60. To perform the adjustment in the transverse guide portion 60, the pivot holder 87 is to pivot from its holding position to a release position of the head part 40.
  • the bending punch 5 or the bending die 6 is displaced further in the second longitudinal guide section 59 toward the first end face 54 of the tool holder housing 50. If this position is reached, further displacement can take place of the punch 5 or the bending die 6 in a tool storage device or a magazine done.
  • the loading of the manufacturing plant 1 with a new set of bending tool 4 can be done in an analogous manner, but in the opposite direction or sequence of the procedure described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP15167131.0A 2014-05-13 2015-05-11 Outil de pliage et procédé de changement d'un tel outil Not-in-force EP2944390B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50332/2014A AT515407B1 (de) 2014-05-13 2014-05-13 Biegewerkzeug sowie Wechseleinheit hierfür

Publications (3)

Publication Number Publication Date
EP2944390A2 true EP2944390A2 (fr) 2015-11-18
EP2944390A3 EP2944390A3 (fr) 2016-03-16
EP2944390B1 EP2944390B1 (fr) 2017-11-08

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Application Number Title Priority Date Filing Date
EP15167131.0A Not-in-force EP2944390B1 (fr) 2014-05-13 2015-05-11 Outil de pliage et procédé de changement d'un tel outil

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EP (1) EP2944390B1 (fr)
AT (1) AT515407B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106734579A (zh) * 2016-11-30 2017-05-31 盐城工学院 一种高度可调节连接柄
CN108057788A (zh) * 2017-12-13 2018-05-22 安徽哈科数控机床制造有限公司 一种折弯机用平衡杆装模器及其应用和使用方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517706B1 (de) * 2015-10-20 2017-04-15 Trumpf Maschinen Austria Gmbh & Co Kg Biegemaschine
CN112423908B (zh) * 2018-07-17 2022-12-30 株式会社天田集团 上模储料器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168745A (en) 1989-04-10 1992-12-08 Yamazaki Mazak Kabushiki Kaisha Die exchange apparatus for the use of a press brake
AT509980A4 (de) 2010-12-20 2012-01-15 Trumpf Maschinen Austria Gmbh Fertigungsanlage mit werkzeugspeicher

Family Cites Families (4)

* 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
US7661288B2 (en) * 2003-07-01 2010-02-16 Wilson Tool International Inc. Press brake tool safety key assemblies
US7308817B2 (en) * 2005-02-08 2007-12-18 Wilson Tool International Inc. Push plate tool holder for press brakes
AT511591B1 (de) * 2012-02-07 2013-01-15 Trumpf Maschinen Austria Gmbh Biegewerkzeug mit sicherheitseinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168745A (en) 1989-04-10 1992-12-08 Yamazaki Mazak Kabushiki Kaisha Die exchange apparatus for the use of a press brake
AT509980A4 (de) 2010-12-20 2012-01-15 Trumpf Maschinen Austria Gmbh Fertigungsanlage mit werkzeugspeicher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106734579A (zh) * 2016-11-30 2017-05-31 盐城工学院 一种高度可调节连接柄
CN108057788A (zh) * 2017-12-13 2018-05-22 安徽哈科数控机床制造有限公司 一种折弯机用平衡杆装模器及其应用和使用方法
CN108057788B (zh) * 2017-12-13 2024-02-20 安徽哈科数控机床制造有限公司 一种折弯机用平衡杆装模器及其应用和使用方法

Also Published As

Publication number Publication date
AT515407B1 (de) 2015-09-15
AT515407A4 (de) 2015-09-15
EP2944390A3 (fr) 2016-03-16
EP2944390B1 (fr) 2017-11-08

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