EP3027332B1 - Système d'outil de pliage - Google Patents

Système d'outil de pliage Download PDF

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Publication number
EP3027332B1
EP3027332B1 EP14780397.7A EP14780397A EP3027332B1 EP 3027332 B1 EP3027332 B1 EP 3027332B1 EP 14780397 A EP14780397 A EP 14780397A EP 3027332 B1 EP3027332 B1 EP 3027332B1
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EP
European Patent Office
Prior art keywords
tool
bending machine
spindle
tool part
threaded spindle
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.)
Active
Application number
EP14780397.7A
Other languages
German (de)
English (en)
Other versions
EP3027332A1 (fr
Inventor
Wolfgang Aigner
Stefano Speziali
Thomas Weiss
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
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Publication of EP3027332A1 publication Critical patent/EP3027332A1/fr
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Publication of EP3027332B1 publication Critical patent/EP3027332B1/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
    • 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
    • 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
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • 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
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/047—Length adjustment of the clamping means

Definitions

  • the invention relates to a bending machine, as indicated in claim 1.
  • a bending machine in which the holding-down punch of the bending cheek is segmented. These individual segments are slidably mounted in a parallel to the Abkantachse leadership of the hold and displaced by means of an actuating rod.
  • the displaceable segments each have a coupling for connecting the individual segments, optionally with the segment-associated recess on the control rod or the hold-down.
  • the connection between displaceable segment and control rod is produced by a wedge, which can be introduced into a recess on the control rod and thus produces a positive connection between displaceable segment and control rod.
  • a recess on the control rod is associated with a sliding segment, whereby the wedge for the preparation of the connection between the movable segment and control rod can only be introduced if they are placed exactly above each other.
  • the in the EP 0 258 204 A2 described embodiment has the disadvantage that the recesses in the control rod, are designed so that they must be assigned to a hold-down segment exactly. As a result, the control rod must be positioned exactly above this hold-down segment in order to bring the coupling of the segment into engagement with the control rod. Since all recesses are mounted in the control rod at a fixed distance from each other, the individual segments can not be arbitrarily and independently adjusted, whereby a considerable amount of time to adjust the hold-down can arise. Furthermore, high demands are placed on the control, since the coupling in the form of the wedge at exactly the right time, namely when the recess of the Control rod is above a hold-down, this hold-down must be engaged with the control rod.
  • a bending machine in which jaws are arranged displaceably in the horizontal direction on a support. Furthermore, an adjusting spindle is formed, on which two coupling devices are arranged, wherein the coupling means can be selectively brought into engagement with one of the clamping jaws and the clamping jaws can thus be moved individually.
  • the first coupling device for moving the clamping jaws is formed on the left side of the median plane
  • the second coupling device is designed for displacing the clamping jaws on the right side of the median plane.
  • the present invention has for its object to provide by segmenting the blank holder or the bending tool of a bending machine the ability to edit already pre-bent sheet metal workpieces with laterally bent tabs.
  • these individual segments should be able to be moved quickly and independently of one another in a horizontal direction in order to keep the machine times as low as possible and thus to increase the efficiency of the machine.
  • each tool part comprises a coupling device.
  • each tool part can be engaged independently of the other tool parts and at any time with the rotating threaded spindle, whereby a rapid adjustment of distances between the individual tool parts is possible.
  • By an appropriately trained machine control it is possible that a plurality of tool parts simultaneously engageable with the threaded spindle are in order to adjust them at the same time. It also opens up the possibility that the tool parts can be separated from the engagement with the threaded spindle successively during an adjustment so as to be able to realize distances between the individual tool parts.
  • a so-called tool part can on the one hand be designed as a bending tool, for example, bending punch or bending die. However, it can also be designed as a hold-down punch or as a counterpart to a hold-down punch, for example for a swivel press brake.
  • the coupling device comprises an actuating device which brings about the engagement of the spindle nut section in the threaded spindle or the tool part and which is connected to the control of the bending machine. It is particularly advantageous if the actuating device is connected to the control of the bending machine, since thereby the machine can be automated.
  • the actuator itself can be performed in several different variants.
  • the actuating device may be, for example, an electromagnetically switchable device.
  • the actuating device is a hydraulically or pneumatically operated cylinder, or that a small servomotor is used as the actuating device.
  • the spindle nut portion is rotatably mounted in the tool part and in constant engagement with the threaded spindle and according to the invention, the actuator is a coupling for torque transmission between the spindle nut portion and tool part is advantageous in this case that the actuator, if it is designed as a friction clutch at any time and are switched away can.
  • the threaded spindle on the spindle nut portion which as a full circumference spindle nut may be formed to bring with the tool element in a drive connection, no prior synchronization of the threaded spindle and the spindle nut section are performed.
  • the storage of the spindle nut portion is taken over by a rolling bearing, for example ball bearings, through which the spindle nut portion is rotatably connected to the tool element. Since the speed of the threaded spindle will be rather low and also the forces to be transmitted between spindle nut section and tool element will be low, the requirements for the stability of this bearing are negligible, whereby a cost-effective bearing can be used. It is even conceivable that due to the low demands on the bearing a plain bearing can be used, which is cheaper to buy than a roller bearing.
  • the threaded spindle can be formed in this embodiment, for example, as a threaded spindle with trapezoidal thread, which is easy to manufacture. However, in order to increase the positioning accuracy, it is also possible to use a threaded spindle with recirculating ball thread, which is slightly more expensive to buy.
  • the spindle nut section is stationary and, with respect to the threaded spindle, to be adjustable in the radial direction, to be mounted in the tool part and to be engageable by the actuating device with the threaded spindle.
  • the advantage here is that the spindle nut portion is not in constant engagement with the threaded spindle, whereby the spindle nut portion also does not need to be stored.
  • no ball screw can be used in the embodiment described here, but a setting thread, such as a trapezoidal thread must be used.
  • An advantage of using a trapezoidal thread is that this is easy to manufacture in production.
  • the actuator should be set for such coupling between the threaded spindle and the spindle nut portion so that the force with which the spindle nut portion is engaged is limited, since it may happen that the switching command of the control is given in a moment in which the thread crests of Spindle nut section and threaded spindle over each other. Therefore, it makes sense if the spindle nut section can slip so far over the thread crest of the threaded spindle until the thread flanks of the spindle nut section and the threaded spindle are engaged.
  • the threaded spindle comprises at least two spindle sections which can be driven independently of one another.
  • the advantage here is that the machine times can be further shortened by the independently drivable spindle sections, whereby an advantage in the efficiency of the operation of the machine is achieved.
  • the independently drivable spindle sections can be implemented so that the threaded spindle, for example, is divided in the middle of the machine.
  • both parts of the threaded spindle can be equipped with a motor, whereby they are independently driven.
  • a spindle section can have a left-hand rotation, while a further spindle section has a clockwise rotation, or stands still.
  • the threaded spindle has two, in particular, approximately equally long sections with opposite thread directions.
  • the advantage in this embodiment is that the tool parts with respect to the center plane can be simultaneously moved symmetrically apart or together, with only one drive is required, which drives the threaded spindle.
  • the tool part has a mechanical interface for receiving different tool inserts.
  • This is particularly advantageous because not all the tool part together with the coupling device must be changed for a necessary tool change, but that only the part of the tool must be changed, which has no or only a few mechanical small parts. It can thereby be achieved that the number of tool parts which have a coupling device is kept low, as a result of which the machine can be kept cost-effective and efficient in its use. Furthermore, it is advantageous that a possible tool change can be carried out very quickly.
  • the mechanical interface can be designed as a quick-release coupling.
  • the tool part is designed as a bending tool or as a hold-down device and / or as a hold-down counterpart.
  • a mechanical interface for receiving a bending tool or hold-down on the tool part does not necessarily have to be provided.
  • This embodiment is particularly advantageous when in a bending machine hold-down, as well as their counterparts, or bending tools are in use, which only rarely or not have to be changed because of their universal applicability, or due to customer needs. Thereby, the functional integrity of the machine can be further ensured, while the complexity of the bending machine is kept as low as possible.
  • the position of each tool part can be detected via a measuring device. It is particularly advantageous that by the position detection a control of the movement of the individual tool parts is possible because the machine control the current position of a tool part must be accessible to specify taking into account the desired target position, the spindle rotation and rotational speed, and the switching times of the coupling device.
  • the measuring device can be executed in the form of an incremental scale, to which each individual tool part can determine its position by means of an optical path measurement after a reffering. In addition to this possibility of determining the optical position, it is also possible to realize the distance measurement, for example via sliding resistors.
  • the bending machine has an identifying device, by which at least one tool part and / or at least one tool insert is identifiable.
  • the advantage here is that by the identification of a tool part or a tool insert, the geometry of the tool parts or tool inserts, which can be stored in the machine control can be considered in the calculations for positioning the tool inserts or tool parts. In this case, it may be necessary to identify each of these parts individually to determine its geometry and to position it in cooperation with the measuring device. However, it may also be possible that only one of these elements is identified from a set of identical tool inserts or tool parts, which are always used together in the bending machine, wherein the remaining tool parts or tool inserts need not be specifically identified.
  • the identification device can be provided as an optical device which, for example, reads in a bar code on the individual tool parts or on the individual tool inserts by being movable relative to them. It is also conceivable that the identification device is executed, for example, by the use of RFID components.
  • the drive device of the threaded spindle or the coupling devices comprise an overload protection, in particular a slip clutch. It is particularly advantageous in this case that, in the event of a malfunction of the controller, or in the case of a machine breakage, or operating error in which the tool parts get into collision with one another or with other components, the force which is exerted on the tool part can be limited. This can prevent damage to the bending machine.
  • each tool part has a clamping device for horizontal position assurance.
  • a clamping device for horizontal position assurance.
  • This is particularly advantageous because the tool part, if it should just not be moved, and therefore not engaged with the threaded spindle is not to change its position.
  • a clamping device can be used so that when a tool part is clamped, another tool part can be moved so far until it rests directly on the clamped tool part without moving it. Thereby, the tool parts can be positioned "stop" to each other, whereby the gap between the individual tool parts can be brought to zero, so as to provide a continuous tool unit.
  • Such a clamping device may be provided in the form of a clamping wedge or a pin, which produces a frictional connection between the tool part and tool holder.
  • the clamping device is activated for horizontal position assurance with the actuator. It is advantageous here that no separate control or power supply is necessary for actuating the clamping device, but that the clamping device is released simultaneously as soon as the spindle nut section is brought into engagement with the threaded spindle. Once the operating direction is returned to its rest position and thus the spindle nut section is extended again from its engagement position in the threaded spindle, the clamping device is activated again to secure the tool part in its position.
  • Fig. 1 shows in a perspective view of the essential parts of a bending machine 1 for the bending of sheet metal workpieces 2.
  • a bending machine 1 for the bending of sheet metal workpieces 2.
  • it may be in the illustrated bending machine to a press brake or a folding machine.
  • Either a press brake and a folding machine have in common that they comprise at least one tool carrier 3, in which a tool holder 4 is integrated.
  • a tool carrier 3 in which only one tool carrier 3 is present, or in which two tool carriers 3 are present.
  • the sheet metal workpiece 2 is placed on a lower support table and then the tool carrier 3, which is vertically displaceable, moves towards a fixed support table to the sheet metal workpiece 2 between the tool carrier 3 and the support table terminals.
  • two tool carrier 3 are present, which are used for the processing of a sheet metal workpiece 2, wherein the upper tool carrier 3 is arranged vertically displaceable, and the lower tool carrier 3 is arranged stationary.
  • a tool carrier 3 is always designed so that in the tool holder 4 of the tool carrier 3 a plurality of tool parts 5 can be accommodated, which are arranged horizontally displaceable in the tool carrier 3.
  • the guide connection between the tool holder 4 and the tool part 5 is shown in the present drawings as a dovetail guide. Such a guide arrangement is only one of many ways that a connection between the tool holder 4 and the tool part 5 can be made. Of course, all other types of tool guide known to those skilled in the art can also be used.
  • an adjusting device 6 is necessary, which is designed as a threaded spindle 7 in the embodiment according to the invention.
  • the threaded spindles 7 are divided into two spindle sections 8, which are each driven by a separate drive device 9. Not visible in the illustration is the short section of the threaded spindle 7, in which it is interrupted, and thus the two spindle sections 8, which are arranged on a tool carrier 3, are movable independently of each other. Even with a design with a split threaded spindle 7, it is not necessary for the threaded spindle 7 to have a bearing in the part plane, since the threaded spindle 7 is held in position by the individual tool parts 5.
  • the drive device 9 of the Threaded spindle 7 can be realized for example by an electric motor, in particular servomotor, but it is also conceivable that a hydraulic motor, or other motors are used as a drive device 9.
  • a tool insert 11 is mounted on the tool part 5 and can be moved with this, but that the tool part 5 is formed as a bending tool or hold-down element, and thus no mechanical interface 12 is necessary.
  • an overload protection 13 indicated which can be formed for example as a slip clutch and in the case of excessive force acting on the tool part 5 during the adjustment, the drive device 9 can separate from the threaded spindle 7.
  • Fig. 2 shows the cross section through a bending machine 1, wherein the cutting guide runs exactly at the height of the central axis of the threaded spindle 7.
  • the tool carrier 3 with its tool holder 4 and the tool parts 5 and the tool inserts 11 coupled thereto are shown in section.
  • the upper tool carrier 3 and the lower tool carrier 3 are identical in the area of the tool holder 4, but only the upper tool carrier is adjustable in a vertical direction.
  • the recorded in the tool holders 3 tool parts 5 with their attached thereto or integrated tool inserts 11 which are slidably received in a horizontal adjustment 10 in the tool holder 4, can be performed the same way in the upper tool carrier 4, and in the lower tool carrier 3.
  • a coupling device 14 By the sectional view showing the interior of a tool part 5, a coupling device 14 can be seen, in which a spindle nut portion 15 is received.
  • the spindle nut portion 15 is formed as a full-circumference spindle nut.
  • an actuating device 16 is shown, which is adapted to connect the spindle nut portion 15 with the tool part 5.
  • a measuring device 17 is shown schematically, which can detect the position of the individual tool parts 5 and passes it on to the machine control. By the position detection can be achieved that the machine control of the bending machine 1, the coupling device 14 and thus the actuator 16 can control based on these measurement data. Due to the position detection, it is also possible that no pure control command for the positioning of the tool parts 5 must be used, but a control cycle can be used, which actively and individually predefines and adjusts the positions.
  • Fig. 2 a center plane 18 shown, with respect to which the tool inserts 11 are arranged mirrored.
  • This mirrored arrangement or the special shape of a taper of the tool parts 5 has the advantage that not only sheet metal workpieces 2 can be bent with laterally bent tabs, which have a U-shape in the cross-sectional area, but that also sheet metal workpieces 2 with the laterally bent Tabs bent again tabs can be bent, which thereby have a cross-sectional area in C-shape. Due to the special shape of the tool inserts 11 can be achieved that the working edge 19 of the tool insert 11 can be brought into contact with the workpiece surface 20 even in C-shaped sheet metal workpieces into an edge region of these workpieces.
  • Fig. 3 shows a cross section through a bending machine 1 with the same cut as in Fig. 2 is shown.
  • the tool parts 5 and the tool inserts 11 mounted thereon which are located on the right side of the center plane 18, are displaced from the center plane 18 in the adjustment direction 10 to the right on the upper tool carrier 3.
  • This allows a sheet metal workpiece 2, which has laterally bent tabs 21 are processed in the bending machine 1, since the laterally bent Tabs 21 can be introduced into the resulting gap between the individual tool inserts 11.
  • Fig. 4 shows the schematic representation of another embodiment in which the laterally bent tabs 21 of the sheet metal workpiece 2 have a further bend, so that the cross-sectional view of the sheet metal workpiece 2 results in a C-profile.
  • tool inserts 11 have a taper towards the top.
  • the tool inserts 11 can be moved so far to the edge of the workpiece surface 20 until the working edge 19 can also engage in the edge region of the laterally bent tabs 21.
  • the tool inserts 11 in the adjustment direction 10 in the direction of the center plane 18 must be pushed together.
  • the tool carrier 3 can be moved so far down with the mounted on this tool parts 5 and mounted on the tool parts 5 tool inserts 11 in a vertical direction of movement 22 until the working edge 19 of a tool insert 11 approximately contacts the workpiece surface 20.
  • the entire tool carrier 3 together with the tool parts 5 and the tool inserts 11 is moved so far down until the tab 21 of the sheet metal workpiece 2 can be introduced into the taper of the tool insert 11.
  • the tool inserts 11 on both sides of the median plane 18 as far as possible from this in the adjustment direction 10 are moved apart until they abut approximately on the laterally bent tab 21 of the sheet metal workpiece 2.
  • the tool carrier 3 can be further moved in the vertical direction of movement 22 down until the working edge 19 of the tool insert 11 or the tool part 5, the workpiece surface 20 of the sheet metal workpiece 2 touches.
  • the desired bending process can be performed.
  • a reverse order can be used to move the tool insert 11 or the tool part 5 again out of the bent sheet metal workpiece 2 addition.
  • Fig. 5 shows a detailed view of the section through a tool carrier 3 and the tool holder 4 and the tool parts 5 with the tool inserts 11 coupled thereto.
  • a tool insert 11 is not coupled via a mechanical interface 12 to the tool part 5 in the right-hand tool part 5, but the tool part 5 is formed so that the tool insert 11 is integrated in the tool part 5 is.
  • the center plane 18 is shown, which separates the threaded spindle 7 into two sections 23, which have different thread orientations. As a result, the tool parts 5 can be moved symmetrically apart or together with respect to the center plane 18, wherein only one drive device 9 per threaded spindle 7 is required, which drives the threaded spindle 7.
  • the coupling device 14 which comprises an actuating device 16.
  • the actuator 16 is executed in the illustrated view as an electromagnetically actuated clutch, which produces a mechanical connection between the tool part 5 and spindle nut portion 15 by frictional engagement.
  • a clamping device 24 is simultaneously released, which establishes a connection between the tool part 5 and the tool holder 4 in a rest position of the actuator 16, so that the tool part 5 is not moved unintentionally in the adjustment direction 10.
  • the spindle nut section 15, which is received in the tool part 5 by roller bearings 25, can no longer rotate with the threaded spindle 7.
  • a relative movement between the threaded spindle 7 and the spindle nut section 15 is achieved, in which the spindle nut section 15 is stationary and the threaded spindle 7 rotates. Due to the relative movement between spindle nut portion 15 and threaded spindle 7, as well as by the pitch of the thread of the threaded spindle 7, the tool part 5 is moved in the tool holder 4 along the adjustment direction 10. This adjustment process can be performed simultaneously for several tool parts 5.
  • the actuating device 16 is simultaneously designed as a slip clutch and thus represents an overload protection 13, which protects the machine from damage.
  • the actuator 16 is deactivated, whereby the torque-locking connection between the tool part 5 and spindle nut section 15 is released.
  • the spindle nut section 15 can again run with the threaded spindle 7.
  • the clamping device 24 is again brought into use by this process in such a way that the tool part 5 is received in a secure manner in the tool holder 4 of the tool carrier 3.
  • FIG. 6 a further and possibly independent embodiment of the tool part 5 is shown, again for like parts, the same reference numerals or component names as in the preceding Fig. 1-5 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1-5 referred or referred.
  • Fig. 6 shows the cross section through a bending machine 1, wherein the cutting guide runs exactly at the height of the central axis of the threaded spindle 7.
  • a further embodiment of a tool part 5 is shown, in which the spindle nut portion 15 is not designed as a circumferential spindle nut, but is integrated in the spindle nut portion 15 in a recess 26 of the tool part 5.
  • the actuator 16 is designed as a hydraulically or pneumatically actuated cylinder. Of course, other Antiebe can be used as actuator 16.
  • the actuator 16 moves the spindle nut portion 15 so far in the direction of actuation 27 upwards until it is in engagement with the threaded spindle 7.
  • the actuator 16 is brought back from its operating position back to its rest position, whereby the spindle nut portion 15 is again moved from the engagement position of the threaded spindle 7.
  • a not shown here Clamping device 24 may be provided, which now clamps the tool part 5 relative to the tool holder 4.
  • Fig. 6 illustrated embodiment shows a threaded spindle 7, which is divided in the center plane 18 in two spindle sections 8. These spindle sections are independently driven by a drive device 9, whereby the adjustment of the tool parts 5 right of the center plane 18 independently and in the same direction or in the opposite direction of adjustment 10 as the adjustment of the tool parts 5, which are located on the left side of the center plane 18 , respectively.
  • the tool parts 5, or the tool inserts 11 are shown as a hold-down punch, or as a counter punch for a folding machine.
  • the upper tool parts 5, or tool inserts 11 must be performed as a punch and the lower tool parts 5, or tool inserts 11 as a die.

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

Claims (10)

  1. Machine plieuse (1) pour le pliage de pièce en tôle (2), par exemple une presse plieuse ou une machine plieuse pivotante, comprenant au moins un porte-outil (3), moyennant quoi, sur l'au moins un porte-outil (3), sont disposées plusieurs parties d'outils (5) coulissantes le long d'un logement d'outil horizontal (4), au moins un dispositif de réglage (6) pour le déplacement des parties d'outils (5) et des dispositifs de couplage (14) correspondant aux parties d'outils (5) pour la liaison d'une partie d'outil (5) avec le dispositif de réglage (6), le dispositif de réglage (6) comprenant une broche filetée (7) s'étendant parallèlement au logement d'outil (4) et chaque dispositif de couplage (14) comprenant une portion d'écrou de broche (15), la portion d'écrou de broche (15) pouvant être couplée avec la partie d'outil (5) ou avec la broche filetée (7), le dispositif de couplage (14) comprenant un dispositif d'actionnement (16) provoquant l'emboîtement de la portion d'écrou de broche (15) dans la broche filetée (7) ou la partie d'outil (5), qui est relié avec le dispositif de commande de la machine plieuse (1), caractérisée en ce que chaque partie d'outil (5) comprend un dispositif de couplage (14), la portion d'écrou de broche (15) étant logée de manière rotative dans la partie d'outil (5) et étant en permanence emboîtée avec la broche filetée (7), et en ce que le dispositif d'actionnement (16) est un couplage de transmission de couple entre la portion d'écrou de broche (15) et une partie d'outil (5).
  2. Machine plieuse selon la revendication 1, caractérisée en ce que la broche filetée (7) comprend au moins deux portions de broche (8) pouvant être entraînées indépendamment l'une de l'autre.
  3. Machine plieuse selon la revendication 1 ou 2, caractérisée en ce que la broche filetée (7) comprend deux portions partielles (23), plus particulièrement de longueurs approximativement égales, avec des sens de filetage opposés.
  4. Machine plieuse selon l'une des revendications précédentes, caractérisée en ce que la partie d'outil (5) comprend une interface mécanique (12) pour le logement de différents inserts d'outils (11).
  5. Machine plieuse selon l'une des revendications 1 à 3, caractérisée en ce que la partie d'outil (5) est conçue comme un outil de pliage ou comme un serre-flan et/ou comme une contre-pièce de serre-flan.
  6. Machine plieuse selon l'une des revendications précédentes, caractérisée en ce que la position de chaque partie d'outil (5) peut être mesurée par l'intermédiaire d'un dispositif de mesure (17).
  7. Machine plieuse selon l'une des revendications précédentes, caractérisée en ce que la machine plieuse (1) comprend un dispositif d'identification grâce auquel au moins une partie d'outil (5) et/ou au moins un insert d'outil (11) peut être identifié.
  8. Machine plieuse selon l'une des revendications précédentes, caractérisée en ce que le dispositif d'entraînement (9) de la broche filetée (7) ou le dispositif de couplage (14) comprend une protection anti-surcharge (13), plus particulièrement un accouplement à glissement.
  9. Machine plieuse selon l'une des revendications précédentes, caractérisée en ce que chaque partie d'outil (5) dispose d'un dispositif de serrage (24) pour la sécurisation horizontale de la position.
  10. Machine plieuse selon la revendication 9, caractérisée en ce que le dispositif de serrage (24) est activé pour la sécurisation horizontale de la position avec le dispositif d'actionnement (16).
EP14780397.7A 2013-07-30 2014-07-29 Système d'outil de pliage Active EP3027332B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50478/2013A AT514644B1 (de) 2013-07-30 2013-07-30 Biegewerkzeugsystem
PCT/AT2014/050165 WO2015013734A1 (fr) 2013-07-30 2014-07-29 Système d'outil de pliage

Publications (2)

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EP3027332A1 EP3027332A1 (fr) 2016-06-08
EP3027332B1 true EP3027332B1 (fr) 2017-06-21

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US (1) US9623464B2 (fr)
EP (1) EP3027332B1 (fr)
CN (1) CN105531047B (fr)
AT (1) AT514644B1 (fr)
WO (1) WO2015013734A1 (fr)

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AT517597B1 (de) * 2016-03-07 2017-03-15 Trumpf Maschinen Austria Gmbh & Co Kg Verfahren zum gleichzeitigen Verschieben von zumindest zwei, in einer Schiene einer Werkzeughalterung gehaltenen Biegewerkzeugen
BE1024166B1 (nl) * 2016-06-24 2017-11-23 V.L.M. In breedte verstelbare matrijs
AT519221B1 (de) * 2016-12-06 2018-05-15 Trumpf Maschinen Austria Gmbh & Co Kg Fertigungsanlage mit einem Klemmwerkzeug sowie Verfahren zur Anpassung einer Gesamtlänge einer Biegekante des Klemmwerkzeugs
AT519228B1 (de) * 2016-12-20 2018-05-15 Trumpf Maschinen Austria Gmbh & Co Kg Biegewerkzeug für eine Biegepresse
CN110479802B (zh) * 2019-09-14 2020-11-03 青岛四洲重工设备有限公司 一种用于金属板材的精密高效折弯系统
IT202000013021A1 (it) * 2020-06-01 2021-12-01 G A D E S R L Carrello per macchine utensili munito di sistema anticollisione
CN111804771B (zh) * 2020-07-21 2022-08-12 亚铁智能装备技术(东莞)有限公司 一种基于折弯机非对称工件的折弯方法
CN112275851B (zh) * 2020-10-10 2022-05-06 南京云上自动化科技有限公司 一种全自动折弯设备的模具拼刀装置及方法
FR3133771B1 (fr) * 2022-03-24 2024-03-01 Psa Automobiles Sa porte-outils réglable pour presse d’emboutissage

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JPS5944616U (ja) * 1982-09-08 1984-03-24 丸機械工業株式会社 フオ−ルデイングマシン用金型交換装置
JPS61103626A (ja) * 1984-10-29 1986-05-22 Maru Kikai Kogyo Kk 折曲げ機のクランプ型長さ変換装置
JPS61159224A (ja) * 1984-12-29 1986-07-18 Maru Kikai Kogyo Kk プレスブレ−キの型長さ変換装置
AT385689B (de) * 1986-08-14 1988-05-10 Voest Alpine Ag Vorrichtung zum abkanten von blechzuschnitten
DE19613962C2 (de) * 1996-04-09 2000-03-23 Schechtl Maschinenbau Gmbh Schwenkbiegemaschine zum Biegen oder Abkanten eines Blechs
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JP4083664B2 (ja) * 2003-11-14 2008-04-30 協和マシン株式会社 板材曲げ加工機のセンター型装着固定構造
DE102007008312A1 (de) * 2007-02-16 2008-08-21 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Presse
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Also Published As

Publication number Publication date
CN105531047A (zh) 2016-04-27
AT514644A1 (de) 2015-02-15
CN105531047B (zh) 2018-04-27
US9623464B2 (en) 2017-04-18
WO2015013734A1 (fr) 2015-02-05
US20160214159A1 (en) 2016-07-28
EP3027332A1 (fr) 2016-06-08
AT514644B1 (de) 2015-05-15

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