EP3515627B1 - Machine-outil et procédé d'usinage de pièces en forme de plaque - Google Patents

Machine-outil et procédé d'usinage de pièces en forme de plaque Download PDF

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Publication number
EP3515627B1
EP3515627B1 EP17780339.2A EP17780339A EP3515627B1 EP 3515627 B1 EP3515627 B1 EP 3515627B1 EP 17780339 A EP17780339 A EP 17780339A EP 3515627 B1 EP3515627 B1 EP 3515627B1
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EP
European Patent Office
Prior art keywords
tool
axis
measuring device
drive assembly
along
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
EP17780339.2A
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German (de)
English (en)
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EP3515627A1 (fr
Inventor
Dennis Tränklein
Markus Wilhelm
Rainer Hank
Marc Klinkhammer
Leonard Schindewolf
Simon OCKENFUSS
Jens Kappes
Alexander Tatarczyk
Jörg Neupert
Dominik BITTO
Markus MAATZ
Christian JAKISCH
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 Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE 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.)
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Publication date
Priority claimed from DE102016118175.7A external-priority patent/DE102016118175B4/de
Priority claimed from DE102016120142.1A external-priority patent/DE102016120142A1/de
Application filed by Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Publication of EP3515627A1 publication Critical patent/EP3515627A1/fr
Application granted granted Critical
Publication of EP3515627B1 publication Critical patent/EP3515627B1/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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • B21D37/145—Die storage magazines
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching

Definitions

  • the invention relates to a machine tool and a method for processing plate-shaped workpieces, preferably sheet metal.
  • Such a machine tool is from EP 2 527 058 B1 known which document is regarded as the closest prior art for the independent claims 1 and 10.
  • This publication discloses a machine tool in the form of a press for processing workpieces, an upper tool being provided on a lifting device which can be moved along a lifting axis in the direction of the workpiece and in the opposite direction relative to a workpiece to be processed.
  • a lower tool is provided, which is positioned on an underside.
  • a lifting drive device for a lifting movement of the upper tool is controlled by a wedge gear.
  • the lifting drive device with the upper tool arranged on it can be moved along a positioning axis with a motor drive.
  • the lower tool is moved synchronously with a motor drive to the upper tool.
  • a device for performing a method for the optical pre-setting of tools such as a punching tool, which has a magazine for holding the tools.
  • the pre-device comprises a recording unit for recording the geometry of the tools in order to compare the recorded data with target data which are stored in a computer. It is provided that the tool to be tested or set up is removed from the magazine of the pre-device and fed to a tool holder which is rotatable and is assigned to a length measuring and position determining device. After the tools have been pre-set up, the tools must be removed from the magazine of the pre-device and fed to a magazine of a machine tool so that the tools can be used for machining from there.
  • a device and a method for automatic centering of an upper and lower tool holder of a punching machine are known. It is provided that a detection means is arranged on an upper tool holder, which is then assigned to a lower tool holder. This is followed by a rotary movement of the detection means, designed as a touch sensor, in order to detect an offset of the lower tool holder in the X and / or Y direction. After the detection for the automatic centering of the tool holder has been completed, the detection means is again returned to a magazine of the punching machine in order to then carry out an alignment of the upper tool holder. A tool intended for the machining step is then removed from the magazine from the magazine in order to carry out subsequent machining.
  • the invention is based on the object of proposing a machine tool and a method for processing plate-shaped workpieces, in particular sheet metal, by means of which set-up times are reduced.
  • This comprises an upper tool which can be moved along a stroke axis with a stroke drive device in the direction of a workpiece to be machined with the upper tool and in the opposite direction and which can be positioned with at least one motor drive arrangement along an upper positioning axis perpendicular to the stroke axis.
  • This further comprises a lower tool which is aligned with the upper tool and can be positioned with at least one motorized drive arrangement along a lower positioning axis which is aligned perpendicular to the stroke axis of the upper tool.
  • the upper and lower tool can be moved in the interior of a machine frame.
  • the motorized drive arrangements for moving the upper and / or lower tool can be controlled by a controller. It is provided that the Movement of the upper tool along the upper positioning axis and the movement of the lower tool along the lower positioning axis can each be controlled independently of one another. Furthermore, at least one measuring device oriented towards the lower drive arrangement and / or at least one measuring device oriented towards the upper drive arrangement on the lower drive arrangement is provided on the upper drive arrangement. The arrangement and positioning of the at least one measuring device on the lower and / or upper drive arrangement enables individual parameters of the upper and / or lower tool, such as a tool length and / or tool length, to be checked by means of the at least one measuring device before the tool is used for machining a tool geometry.
  • This data can be forwarded to the control of the machine tool and processed, so that the workpiece can be processed with the current data of the tool used immediately afterwards.
  • a previous complex data transfer of data which takes place separately from the machine tool by a separate measurement of a tool length and / or a tool type or geometry in a pre-device, and a subsequent conversion of the tools into the machine tool is no longer necessary.
  • the at least one measuring device is positioned adjacent to the tool holder of the upper tool and / or lower tool on the upper and / or lower drive arrangement. This enables only a slight movement of the upper tool and / or lower tool along the upper and / or lower positioning axis in opposite directions to one another in order to position the upper tool and lower tool in each case with respect to the opposite measuring device. After at least one parameter of the upper tool and / or lower tool has been recorded, machining of the workpiece can be started immediately thereafter.
  • the at least one measuring device is connected to the upper drive arrangement is aligned with the lower tool and / or the at least one measuring device on the lower drive arrangement is aligned with the upper tool.
  • the relative movement of the upper and / or lower tool along the upper and / or lower positioning axis can be determined.
  • a measuring axis of the measuring device is aligned in the same direction as the position axis of the opposite upper tool and / or lower tool.
  • the height of a machining tool on the upper tool or a counter tool on the lower tool can be checked in a simple manner.
  • a scraper height or the presence of a scraper as well as the control of the scraper type can also be made possible. It can also be determined whether a length and / or contour of the machining tool on the upper tool or the counter tool on the lower tool lies before a wear limit or has exceeded it.
  • the at least one measuring device is designed as a scanning element or as a contactless sensor.
  • the contactless sensor can increase the flexibility in the acquisition of parameters.
  • the measuring device which is designed as a contactless sensor, is advantageously designed as an optical distance sensor, in particular a line laser or a camera device, in particular a CCD camera.
  • the measuring device can be selected as a function of the installation space available.
  • the measuring device can be adapted to the required measuring tasks.
  • the measuring device is provided on a console slide of the lower drive arrangement. This enables the measuring device to be easily positioned adjacent to the lower tool. In addition, this can be freely aligned with respect to its measuring axis in the direction of the upper tool.
  • the at least one measuring device on the upper drive arrangement is preferably provided on the double wedge of a wedge gear. This enables a protected arrangement, in particular in front of corrugated sheets to be processed.
  • a cover or shield is assigned to the measuring device on an exit side of the measuring axis, which can be removed for a measuring process. In this way, protection against contamination and / or damage can be provided, in particular in the case of an optical measuring device. Such a cover can be moved, folded away or opened for the respective measuring task.
  • the object on which the invention is based is furthermore achieved by a method for processing plate-shaped workpieces, preferably sheet metal, in which an upper tool that moves along a stroke axis with a stroke drive device in the direction of a workpiece to be machined with the upper tool and is movable in the opposite direction, is moved with at least one motorized drive arrangement along an upper positioning axis running perpendicular to the lifting axis and in which a lower tool, which is aligned with the upper tool, is moved with at least one motorized drive arrangement along a lower positioning axis, which is perpendicular to the lifting axis of the upper tool is aligned.
  • the upper and lower tools are moved in the interior of a machine frame.
  • the motorized drive arrangements for moving the upper and lower tool are controlled by a control. It is provided that at least one measuring device provided on the upper drive device, which is directed in the direction of the lower Drive arrangement is aligned, along the upper positioning axis and / or at least one measuring device provided on the lower drive arrangement, which is aligned in the direction of the upper drive arrangement, are each controlled independently of one another along the lower positioning axis. This enables short travels in order to position the upper tool in relation to a measuring device provided on the lower drive arrangement or the lower tool in relation to a measuring device provided on the upper drive arrangement, so that individual parameters of the upper and / or lower tool can then be recorded by a measuring method.
  • This acquisition of the parameters can be forwarded directly to the control of the machine tool, so that the acquired data of the upper and / or lower tool are taken into account in the subsequent processing steps. This simplifies the set-up process and shortens the time. In addition, it can thereby be ensured that the upper and lower tool required for the subsequent machining process is received in the upper and / or lower tool holder of the machine tool.
  • a movement of the upper tool and / or the lower tool along the lower and / or upper positioning axis is controlled with a rotary movement about the stroke axis and / or a stroke movement along the stroke axis superimposed. This can increase the flexibility in performing the measurement method.
  • a preferred embodiment of the method provides that a height of the upper tool or of the lower tool is detected by traversing a measuring axis of the opposite measuring device by a movement along the upper and / or lower positioning axis.
  • a movement can for example a height of the tool body on the upper tool or the counter tool body on the lower tool can be made possible.
  • a geometry can also be recorded, as well as, if necessary, wear on the tool body or counter-tool body.
  • a further preferred embodiment of the method provides that, in order to carry out a measurement of the upper tool or lower tool, the upper tool or the lower tool is positioned adjacent to the measuring axis of the opposite measuring device or is aligned with the measuring axis in order to subsequently carry out a measuring strategy.
  • detailed tool information can be recorded.
  • the data acquired by the measuring device are processed in an evaluation device and compared and evaluated with data from tools in a data memory of the control or evaluation device. This has the advantage that a check can be made to determine whether the relevant tool has been set up. In addition, it can easily be determined whether the tool is inside or outside a wear limit.
  • FIG. 1 a machine tool 1 is shown, which is designed as a punch press.
  • This machine tool 1 includes a support structure with a closed machine frame 2. This includes two horizontal frame legs 3, 4 and two vertical frame legs 5 and 6.
  • the machine frame 2 encloses a frame interior 7 that defines the working area of the machine tool 1 with an upper tool 11 and a lower tool 9 forms.
  • the machine tool 1 is used to machine plate-shaped workpieces 10, which for the sake of simplicity are shown in FIG Figure 1 are not shown and can be arranged in the frame interior 7 for processing purposes.
  • a workpiece 10 to be machined is placed on a workpiece support 8 provided in the frame interior 7.
  • the lower tool 9 is mounted on the lower horizontal frame leg 4 of the machine frame 2, for example in the form of a punching die.
  • This punching die can be provided with a die opening.
  • the upper tool 11 embodied as a punch, dips into the die opening of the lower tool embodied as a punching die a.
  • the upper tool 11 and lower tool 9 can also be used as a bending punch and a bending matrix for reshaping workpieces 10 instead of a punch and a punching die.
  • the upper tool 11 is fixed in a tool holder at a lower end of a ram 12.
  • the ram 12 is part of a lifting drive device 13, by means of which the upper tool 11 can be moved in a lifting direction along a lifting axis 14.
  • the stroke axis 14 runs in the direction of the Z axis of the coordinate system in FIG Figure 1 indicated numerical control 15 of the machine tool 1.
  • the lifting drive device 13 perpendicular to the lifting axis 14, the lifting drive device 13 can be moved along a positioning axis 16 in the direction of the double arrow.
  • the positioning axis 16 runs in the direction of the Y-axis of the coordinate system of the numerical control 15.
  • the lifting drive device 13 accommodating the upper tool 11 is moved along the positioning axis 16 by means of a motor drive 17.
  • the movement of the plunger 12 along the stroke axis 14 and the positioning of the stroke drive device 13 along the positioning axis 16 take place by means of a motor drive 17 in the form of a drive arrangement 17, in particular a spindle drive arrangement, with a drive spindle running in the direction of the positioning axis 16 and firmly connected to the machine frame 2 18.
  • the lifting drive device 13 is guided during movements along the positioning axis 16 on three guide rails 19 of the upper frame leg 3, of which in FIG Figure 1 two guide rails 19 can be seen.
  • the remaining guide rail 19 runs parallel to the visible guide rail 19 and is spaced from this in the direction of the X-axis of the coordinate system of the numerical control 15.
  • Guide shoes 20 of the lifting drive device 13 run on the guide rails 19.
  • the lifting drive device 13 is suspended on the machine frame 2 via the guide shoes 20 and the guide rails 19.
  • a further component of the lifting drive device 13 is a wedge gear 21, by means of which a position of the upper tool 11 relative to the lower tool 9 can be adjusted.
  • the lower tool 9 is received such that it can be moved along a lower positioning axis 25.
  • This lower positioning axis 25 runs in the direction of the Y-axis of the coordinate system of the numerical control 15.
  • the lower positioning axis 25 is preferably aligned parallel to the upper positioning axis 16.
  • the lower tool 9 can be moved directly on the lower positioning axis 16 with a motorized drive arrangement 26 along the positioning axis 25.
  • the lower tool 9 can also be provided on a lifting drive device 27, which can be moved along the lower positioning axis 25 by means of the motorized drive arrangement 26.
  • This drive arrangement 26 is preferably designed as a spindle drive arrangement.
  • the lower lifting drive device 27 can correspond in structure to the upper lifting drive device 13.
  • the motor drive arrangement 26 can also correspond to the motor drive arrangement 17.
  • the lower lifting drive device 27 is mounted displaceably on guide rails 19 assigned to the lower horizontal frame leg 4.
  • Guide shoes 20 of the lifting drive device 27 run on the guide rails 19 so that the connection between the guide rails 19 and guide shoes 20 on the lower tool 9 can also absorb a load acting in the vertical direction. Accordingly, the lifting drive device 27 is also suspended via the guide shoes 20 and the guide rails 19 on the machine frame 2 and spaced apart from the guide rails 19 and guide shoes 20 of the upper lifting drive device 13.
  • the lifting drive device 27 can also comprise a wedge gear 21 through which the position or height of the lower tool 9 is adjustable along the Z axis.
  • both the motorized drives 17 for moving the upper tool 11 along the upper positioning axis 16 and the motorized drive (s) 26 for moving the lower tool 9 along the lower positioning axis 25 can be controlled independently of one another.
  • the upper and lower tools 11, 9 can thus be moved synchronously in the direction of the Y axis of the coordinate system.
  • An independent movement of the upper and lower tool 11, 9 can also be controlled in different directions.
  • This independent movement of the upper and lower tools 11, 9 can be controlled at the same time.
  • decoupling the movement between the upper tool 11 and the lower tool 9 increased flexibility in the machining of workpieces 10 can be achieved.
  • the upper and lower tools 11, 9 for machining the workpieces 10 can also be designed in various ways.
  • a component of the lifting drive device 13 is the wedge gear 21, which is shown in Figure 2 is shown.
  • the wedge gear 21 comprises two drive-side wedge gear elements 122, 123 as well as two driven-side wedge gear elements 124, 125.
  • the latter are structurally combined to form a structural unit in the form of a driven-side double wedge 126.
  • the plunger 12 is rotatably mounted about the stroke axis 14 on the double wedge 126 on the output side.
  • a motorized rotary drive device 128 is accommodated in the double wedge 126 on the output side and moves the plunger 12 along the stroke axis 14 if necessary. Both left and right rotation of the plunger 12 is possible according to the double arrow in FIG Figure 2 possible.
  • a plunger bearing 129 is shown schematically.
  • the tappet bearing 129 allows low-friction rotational movements of the tappet 12 about the stroke axis 14, and on the other hand, the tappet bearing 129 supports the tappet 12 in the axial direction and accordingly carries loads that act on the tappet 12 in the direction of the stroke axis 14 in the output side Double wedge 126.
  • the double wedge 126 on the output side is delimited by a wedge surface 130 and by a wedge surface 131 of the transmission element 125 on the output side.
  • Wedge surfaces 132, 133 of the drive-side wedge gear elements 122, 123 lie opposite the wedge surfaces 130, 131 of the output-side wedge gear elements 124, 125.
  • the drive-side wedge gear element 122 and the output-side wedge gear element 124, as well as the drive-side wedge gear element 123 and the output-side wedge gear element 125 are guided in the direction of the Y-axis, i.e. in the direction of the positioning axis 16 of the lifting drive device 13, so that they can move relative to one another through longitudinal guides 134, 135.
  • the drive-side wedge gear element 122 has a motorized drive unit 138
  • the drive-side wedge gear element 123 has a motorized drive unit 139. Both drive units 138, 139 together form the spindle drive arrangement 17.
  • the motor drive units 138, 139 have in common that in Figure 1 The drive spindle 18 shown, as well as the lifting drive device 13, 27 mounted on the machine frame 2 and consequently on the supporting structure side.
  • the drive-side wedge gear elements 122, 123 are operated in such a way that they move towards each other along the positioning axis 16, for example, which results in a relative movement between the drive-side wedge gear elements 122, 123 on the one hand and the driven-side wedge gear elements 124, 125 on the other .
  • the double wedge 126 on the output side and the plunger 12 mounted on it are moved downward along the stroke axis 14.
  • the punch which is mounted on the ram 12, for example as an upper tool 11, performs a working stroke and processes a workpiece 10 mounted on the workpiece support 28, 29 or workpiece support 8.
  • the ram 12 is in turn moved along the Lifting axis 14 raised or moved upwards.
  • the above-described lifting drive device 13 according to Figure 2 is preferably constructed identically as a lower lifting drive device 27 and accommodates the lower tool 9.
  • FIG 3 a schematic diagram of a possible stroke movement of the plunger 12 is shown.
  • the diagram shows a stroke course along the Y-axis and the Z-axis.
  • an oblique stroke movement of the stroke ram 12 down towards the workpiece 10 can be controlled, as shown by the first straight line A.
  • the plunger 12 can be lifted off vertically, for example, as shown by the straight line B.
  • the work sequence described above can then be repeated, for example. If the workpiece 10 is moved on the workpiece support surface 28, 29 for a subsequent processing step, a movement along the straight line C can also be omitted.
  • the ones in the diagram in Figure 3 The possible stroke movement of the ram 12 on the upper tool 11 shown is preferably combined with a lower tool 9 that is held stationary.
  • the lower tool 9 is positioned within the machine frame 2 in such a way that at the end of a working stroke of the upper tool 11, the upper and lower tool 11, 9 assume a defined position.
  • This exemplary superimposed stroke profile can be controlled both for the upper tool 11 and for the lower tool 9.
  • a superimposed stroke movement of the upper tool and / or lower tool 11, 9 can be controlled.
  • Figure 4 a schematic diagram is shown, which shows a stroke movement of the plunger 12 according to the line shown by way of example Represents D along a Y-axis and a Z-axis.
  • a stroke movement of the plunger 12 can run through a curve or arc, in that a superposition of the movement movements in the Y-direction and Z-direction is controlled accordingly by the controller 15.
  • Such a flexible superimposition of the traversing movements in the X and Z directions enables specific machining tasks to be solved.
  • the control of such a curve profile can be provided for the upper tool 11 and / or lower tool 9.
  • FIG. 3 is a schematic view of the machine tool 1 according to FIG Figure 1 shown.
  • a workpiece support 28, 29 extends laterally on the machine frame 2 of the machine tool 1.
  • the workpiece support 28 can, for example, be assigned to a loading station, not shown in detail, by which unprocessed workpieces 10 are placed on the workpiece support 28.
  • Adjacent to the workpiece support 28, 29, a feed device 22 is provided which comprises a plurality of grippers 23 in order to grip the workpiece 10 placed on the workpiece support 28.
  • the workpiece 10 is guided through the machine frame 2 in the X direction by means of the feed device 22.
  • the feed device 22 can also be actuated to be movable in the Y direction.
  • the workpiece 10 can be moved by the feed device 22 both in the X direction and against the X direction.
  • This movement of the workpiece 10 can be adapted to a movement of the upper tool 11 and lower tool 9 in and against the Y-direction for the respective machining task.
  • the further workpiece support 29 is provided on the machine frame 2. This can be assigned to an unloading station, for example. Alternatively, the unprocessed workpiece 10 and 10 can be loaded and unloaded Workpiece 10 with workpieces 81 can also be assigned to the same workpiece support 28, 29.
  • the machine tool 1 can furthermore have a laser processing device 201, in particular a laser cutting machine, which is only shown schematically in a top view in FIG Figure 5 is shown.
  • This laser processing device 201 can be designed, for example, as a CO 2 laser cutting machine.
  • the laser processing device 201 comprises a laser source 202 which generates a laser beam 203 which is guided to a laser processing head, in particular laser cutting head 206, by means of a schematically illustrated beam guide 204, and is focused therein.
  • the laser beam 204 is then aligned perpendicular to the surface of the workpiece 10 through a cutting nozzle in order to machine the workpiece 10.
  • the laser beam 203 acts on the workpiece 10 at the machining location, in particular the cutting location, preferably together with a process gas jet.
  • the cutting point at which the laser beam 203 strikes the workpiece 10 is adjacent to the processing point of the upper tool 11 and lower tool 9.
  • the laser cutting head 206 can be moved at least in the Y direction, preferably in the Y and Z directions, by a linear drive 207 with a linear axis system.
  • This linear axis system which receives the laser cutting head 206, can be assigned to the machine frame 2, attached to it or integrated therein.
  • a beam passage opening can be provided in the workpiece support 28 below a working space of the laser cutting head 206.
  • a beam collecting device for the laser beam 21 can preferably be provided below the beam passage opening.
  • the beam passage opening and optionally the beam collecting device can also be designed as a structural unit.
  • the laser processing device 201 can alternatively also have a solid-state laser as the laser source 202, the radiation of which is guided to the laser cutting head 206 with the aid of a light guide cable.
  • the workpiece support 28, 29 can extend directly to the Workpiece support 8 extend, which at least partially surrounds the lower tool 9.
  • the lower tool 9 can be moved along the lower positioning axis 25 in and against the Y direction within a free space that arises in between.
  • a machined workpiece 10 rests on the workpiece support 28, in which a workpiece part 81 has been cut free from a cutting gap 83, for example by punching or by laser beam machining, except for a residual connection 82.
  • This residual connection holds the workpiece 81 in the workpiece 10 or in the remaining skeleton.
  • the workpiece 10 is positioned by means of the feed device 22 to the upper and lower tool 11, 9 for a punching and discharge step.
  • the remaining connection 82 is separated by a punching stroke of the upper tool 11 to the lower tool 9.
  • the workpiece part 81 can be discharged downwards, for example, by partially lowering the workpiece support 8.
  • the workpiece part 81 that has been cut free can be transferred back to the workpiece support 28 or onto the workpiece support 29 in order to unload the workpiece part 81 and the scrap skeleton.
  • Small workpiece parts 81 can also optionally be discharged through an opening in the lower tool 9.
  • an upper drive assembly 17 is schematically simplified compared to that in FIG Figure 2 shown arrangement.
  • the lower drive assembly 26 is provided opposite this upper drive assembly 17.
  • an upper stroke axis 14 of the upper drive arrangement 17 lies in the stroke axis 30 of the lower drive arrangement 26.
  • An upper position axis 35 of the upper tool 11 is congruent with the upper stroke axis 14.
  • a lower position axis 48 of the lower tool 9 is also congruent with a lower stroke axis 14 .
  • the illustrated position of the upper and lower drive arrangements 17, 26 can be a machining position of the upper tool 11 and lower tool 9 represent.
  • the upper drive arrangement 17 has an upper measuring device 601.
  • This upper measuring device 601 is provided on the double wedge 126, for example.
  • This upper measuring device 601 is arranged adjacent to the ram 12, which receives the upper tool 11.
  • the measuring device 601 is aligned with the lower drive arrangement 26 with a measuring axis 602.
  • the measuring axis 602 of the measuring device 601 can preferably be aligned parallel to the position axis 35. This alignment of the measuring axis 602 is also dependent on the selection of the measuring device 601.
  • a lower measuring device 604 is provided, the measuring axis 605 of which is directed towards the upper drive arrangement 17.
  • the measuring axis 605 can preferably be aligned parallel to the position axis 48.
  • the lower measuring device 604 is preferably arranged on a console slide 606 which is part of the motorized drive arrangement 26. This bracket slide 606 is preferably guided to be movable along the lower position axis 25, in particular a spindle.
  • measuring device 601 is provided on the drive arrangement 17 and one measuring device 604 is provided on the drive device 26.
  • several measuring devices can also be provided on one of the two or both drive arrangements 17, 26.
  • a contactless sensor in particular a distance sensor
  • the opposite end face of a tool body 39 of the upper tool 11 ( Figure 8 ) or a counter tool body of the lower tool 9 can be detected.
  • the measuring device 601, 604 is advantageously designed as a line laser.
  • a camera system can also be provided, such as a CCD camera, or some other imaging device, through which the opposite upper tool 11 or lower tool 9, corresponding data can be recorded, processed in an evaluation device and fed to the controller 15.
  • FIG 7 a positioning of the upper tool 11 above the measuring device 604 on the lower drive device 26 is shown.
  • the upper drive arrangement 17 can be moved along the upper positioning axis 16 and / or the lower drive arrangement 26 can be moved along the lower positioning axis 25.
  • the distance between the position axis 48 and the measuring axis 605 of the lower measuring device 604 is, for example, a distance A.
  • the distance between the measuring device 604 and a cutting edge 38 and / or punch surface 43 or underside of the tool body 39 of the upper tool 11 can be determined. On the one hand, this can be used to determine whether an upper tool 11 is received by the upper drive arrangement 17. In addition, the height of the tool body 39 on the upper tool 11 and possibly also the wear can be determined. The data are passed on to the controller 15 for further processing. The same applies to the lower tool if the upper measuring device 601 with its measuring axis 602 is directed towards the lower tool 9.
  • the aforementioned parameters for the tool body 39 on the upper tool 11 can also be determined when a movement is triggered in which the upper tool 11 travels over the lower measuring device 604.
  • the illustrated alignment of the upper drive arrangement 17 to the lower drive arrangement 26 can furthermore also be used to detect the geometry of a stamp surface 43 of a machining tool 37 and / or to detect wear.
  • the upper ones are positioned Drive arrangement 17 at a distance A from the lower drive arrangement 26.
  • the upper tool 11 and the lifting axis 14 are then driven by a rotary movement.
  • the geometry of the stamp surface 43 can be recorded.
  • a distance R from the measuring point 607 to an in Fig. 8 axis Y 1 shown (tool axis) can be enlarged. In this way, for example, the tool type can be determined.
  • a helical scanning movement on the underside of the tool body 39 of the upper tool 11 can also be achieved by a linear increase in the distance R of the measuring point 607 to an in Fig. 8 axis Y 1 shown.
  • both the geometry and possible wear on a cutting edge 38 of the tool body 39 of the upper tool 11 delimiting the punch surface 43 can be detected. This is done, for example, by recording polar coordinates.
  • An analogous procedure can also be carried out for the lower tool 9 by means of the measuring device 601.
  • the measuring device 601, 604 can also detect a break at a cutting edge 38 of the tool body 39 or a counter-cutting edge of the counter-tool body, in particular after the machining of the workpiece 10 and before a tool change is due.
  • the data determined by the measuring device 601 and 604 are forwarded to the controller 15 so that they are taken into account as correction data for the subsequent machining of the workpiece 10 with the measured tool.
  • This has the advantage that the tool body of the upper tool and the counter tool body of the lower tool are checked or detected before the start of workpiece machining, so that the workpiece 10 can then be machined immediately without any further setup process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Punching Or Piercing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (15)

  1. Machine-outil destinée à usiner des pièces (10) en forme de plaque, de préférence des tôles, pourvue
    - d'un outil supérieur (11) qui peut être déplacé, grâce à un dispositif d'entraînement de levage (13), le long d'un axe de levage (14) en direction d'une pièce (10) qui doit être usinée avec l'outil supérieur (11), voire en direction opposée, et qui peut être positionné, grâce à au moins un mécanisme d'entraînement à moteur (17), le long d'un axe de positionnement supérieur (16) s'étendant perpendiculairement à l'axe de levage (14),
    - d'un outil inférieur (9) qui est orienté par rapport à l'outil supérieur (11) et qui peut être positionné, grâce à au moins un mécanisme d'entraînement à moteur (26), le long d'un axe de positionnement inférieur (25) qui est orienté perpendiculairement à l'axe de levage (14) de l'outil supérieur (11),
    - d'au moins une commande (15) grâce à laquelle les mécanismes d'entraînement à moteur (17, 26) destinés à déplacer les outils supérieur et inférieur (11, 9) peuvent être activés,
    caractérisée en ce que
    - le mouvement de déplacement de l'outil supérieur (11) le long de l'axe de positionnement supérieur (16) et le mouvement de déplacement de l'outil inférieur (9) le long de l'axe de positionnement inférieur (25) peuvent être respectivement activés indépendamment l'un de l'autre, et
    - sur le dispositif d'entraînement supérieur (17) est prévu au moins un dispositif de mesure (601) orienté vers le mécanisme d'entraînement inférieur (26), et/ou sur le mécanisme d'entraînement inférieur (26) est prévu au moins un dispositif de mesure (604) orienté vers le mécanisme d'entraînement supérieur (17).
  2. Machine-outil selon la revendication 1, caractérisée en ce que le dispositif de mesure (601, 604) est positionné sur le mécanisme d'entraînement (17, 26) de manière contiguë à la réception d'outil de l'outil supérieur (11) et/ou de l'outil inférieur (9) .
  3. Machine-outil selon la revendication 1 ou 2, caractérisée en ce qu'au moins un dispositif de mesure (609) prévu sur le mécanisme d'entraînement supérieur (17) est orienté vers l'outil inférieur (9) et/ou en ce que ledit au moins un dispositif de mesure (604) prévu sur le mécanisme d'entraînement inférieur (26) est orienté vers l'outil supérieur (11) .
  4. Machine-outil selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de mesure (601, 604) présente un axe de mesure (602, 605) qui est orienté dans la même direction que l'axe de position (35, 48) de l'outil opposé, supérieur (11) ou inférieur (9).
  5. Machine-outil selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de mesure (601, 604) est réalisé en tant que capteur sans contact ou en tant que capteur à balayage.
  6. Machine-outil selon la revendication 5, caractérisée en ce que le capteur sans contact est réalisé en tant que capteur optique de distance, en particulier en tant que laser linéaire ou en tant que caméra, en particulier en tant que caméra CCD.
  7. Machine-outil selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de mesure (604) est prévu sur un chariot de console (606) du mécanisme d'entraînement inférieur (26).
  8. Machine-outil selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de mesure (601) est prévu sur une double cale (126) du mécanisme d'entraînement supérieur (17).
  9. Machine-outil selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de mesure (601, 604) présente, sur un côté de sortie, un couvercle ou en ce que sur le dispositif de mesure (601, 604) est positionné, du côté sortie, un couvercle qui peut être enlevé pour une opération de mesure.
  10. Procédé destiné à usiner des pièces (10) en forme de plaque, en particulier des tôles, grâce à une machine-outil (1),
    - dans laquelle un outil supérieur (11) qui peut être déplacé, grâce à un dispositif d'entraînement de levage (13), le long d'un axe de levage (14) en direction d'une pièce (10) qui doit être usinée avec l'outil supérieur (11), voire en direction opposée, est positionné, grâce à au moins un mécanisme d'entraînement à moteur (17), le long d'un axe de positionnement supérieur (16) s'étendant perpendiculairement à l'axe de levage (14),
    - dans laquelle un outil inférieur (9) qui est orienté par rapport à l'outil supérieur (11) est positionné, grâce à au moins un mécanisme d'entraînement à moteur (26), le long d'un axe de positionnement inférieur (25) qui est orienté perpendiculairement à l'axe de levage (14) de l'outil supérieur (11),
    - dans laquelle les mécanismes d'entraînement à moteur (17, 26) destinés à déplacer les outils supérieur et inférieur (11, 9) sont activés grâce à une commande (15),
    caractérisé en ce que
    - au moins un dispositif de mesure (601) prévu sur le mécanisme d'entraînement supérieur (17) et orienté vers le mécanisme d'entraînement inférieur (26) est activé de manière à pouvoir se déplacer le long de l'axe de positionnement supérieur (16), et/ou au moins un dispositif de mesure (604) disposé sur le mécanisme d'entraînement inférieur (26) et orienté vers le mécanisme d'entraînement supérieur (17) est activé de manière à pouvoir se déplacer le long de l'axe de positionnement inférieur (25), et ce chacun indépendamment l'un de l'autre.
  11. Procédé selon la revendication 10, caractérisé en ce que l'outil supérieur (11) et/ou l'outil inférieur (9) est/sont activé(s) de manière à effectuer un mouvement de déplacement le long de l'axe de positionnement (16, 25) et/ou un mouvement de rotation autour de l'axe de levage (14, 30) et/ou un mouvement de course le long de l'axe de levage (14, 30), et ce de manière superposée.
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce qu'une hauteur de l'outil supérieur (11) ou de l'outil inférieur (9) est saisie lorsque l'outil supérieur (11) ou l'outil inférieur (9), lors d'un mouvement de déplacement le long de l'axe de positionnement supérieur et/ou inférieur (16, 25), passe par-dessus un axe de mesure (602, 605) du dispositif de mesure opposé (601, 604).
  13. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce que, pour effectuer une mesure au niveau de l'outil supérieur (11) ou de l'outil inférieur (9), l'outil supérieur (11) ou l'outil inférieur (9) est positionné de manière contiguë à l'axe de mesure (602, 605) du dispositif de mesure opposé (601, 604) ou est orienté par rapport à l'axe de mesure (602, 605), et qu'ensuite une stratégie de mesurage est activée.
  14. Procédé selon l'une quelconque des revendications 10 à 13, caractérisé en ce que les données saisies par le dispositif de mesure (601, 604) sont traitées dans un dispositif d'évaluation et sont comparées avec des données d'outil stockées dans une mémoire de données de la commande et sont évaluées.
  15. Procédé selon l'une quelconque des revendications 10 à 14, caractérisé en ce que, après la réalisation d'une mesure au niveau du corps d'outil (39) de l'outil supérieur (11) et/ou du corps de contre-outil de l'outil inférieur (9), l'outil supérieur et l'outil inférieur (11, 9) sont déplacés dans une position de travail l'un par rapport à l'autre afin d'être soumis au processus d'usinage qui suit.
EP17780339.2A 2016-09-26 2017-09-26 Machine-outil et procédé d'usinage de pièces en forme de plaque Active EP3515627B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016118175.7A DE102016118175B4 (de) 2016-09-26 2016-09-26 Werkzeugmaschine und Verfahren zum Bearbeiten von plattenförmigen Werkstücken
DE102016120142.1A DE102016120142A1 (de) 2016-10-21 2016-10-21 Werkzeugmaschine und Verfahren zum Bearbeiten von plattenförmigen Werkstücken
PCT/EP2017/074303 WO2018055185A1 (fr) 2016-09-26 2017-09-26 Machine-outil et procédé d'usinage de pièces en forme de plaque

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EP3515627A1 EP3515627A1 (fr) 2019-07-31
EP3515627B1 true EP3515627B1 (fr) 2020-09-09

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DE102019124366A1 (de) * 2019-09-11 2021-03-11 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Rüstvorrichtung sowie Verfahren zum Rüsten eines Werkzeuges zum Stanzen oder Umformen von plattenförmigen Materialien

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JP2597055Y2 (ja) * 1993-07-19 1999-06-28 株式会社アマダ パンチプレス
JPH11179445A (ja) * 1997-12-16 1999-07-06 Murata Mach Ltd カートリッジ式パンチプレス
JPH11188500A (ja) * 1997-12-26 1999-07-13 Yoshiki Kogyo Kk プレスシステム
JP3987316B2 (ja) 2001-10-16 2007-10-10 株式会社アマダエンジニアリングセンター パンチ／ダイ１軸移動型板材加工装置
JP4765464B2 (ja) 2005-07-29 2011-09-07 村田機械株式会社 パンチプレスの工具位置検知装置
JP2007245165A (ja) 2006-03-14 2007-09-27 Matsushita Electric Ind Co Ltd 打ち抜き加工用型および型の磨耗検出方法および型の研磨方法
DE102007008698A1 (de) 2007-02-20 2008-08-21 Deutsche Mechatronics Gmbh Verfahren zur optischen Voreinrichtung von Stanzmaschinenwerkzeugen und Vorrichtung zur Durchführung
ATE512734T1 (de) 2008-09-17 2011-07-15 Trumpf Werkzeugmaschinen Gmbh Einrichtung und verfahren zum automatischen zentrieren der werkzeugaufnahmen einer stanzmaschine
ES2517390T3 (es) 2011-05-26 2014-11-03 Werkzeugmaschinen Gmbh + Co. Kg Máquina herramienta en forma de prensa para el tratamiento de piezas de trabajo, especialmente de hojas de metal
CN202684611U (zh) * 2012-02-20 2013-01-23 靖江超星数控机床有限公司 能够自动调节工作台高度的精密数控机床
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CN205217650U (zh) * 2015-12-18 2016-05-11 江苏扬力数控机床有限公司 数控转塔冲床

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Publication number Publication date
EP3515627A1 (fr) 2019-07-31
CN109789474B (zh) 2021-07-23
WO2018055185A1 (fr) 2018-03-29
JP7023937B2 (ja) 2022-02-22
CN109789474A (zh) 2019-05-21
JP2019531193A (ja) 2019-10-31

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