EP3208008B1 - Processing machine for flat material parts and a support unit for same - Google Patents
Processing machine for flat material parts and a support unit for same Download PDFInfo
- Publication number
- EP3208008B1 EP3208008B1 EP17157321.5A EP17157321A EP3208008B1 EP 3208008 B1 EP3208008 B1 EP 3208008B1 EP 17157321 A EP17157321 A EP 17157321A EP 3208008 B1 EP3208008 B1 EP 3208008B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- feed table
- metal
- cutting machine
- extension
- machine according
- 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.)
- Not-in-force
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Classifications
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/13—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by linearly moving tables
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/027—Combined feeding and ejecting devices
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- 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
- B21D5/002—Positioning devices
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- 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
Definitions
- the present invention relates to a processing machine for flat material parts comprising a machine frame, a lower beam, a top beam, at least one of the lower beam associated and held on the machine frame machining tool, a control unit for controlling a processing sequence with the processing tools, and a support unit on which the flat material to be processed can be placed for positioning in the processing machine, wherein the support unit from a parking position in a direction of extension between the open processing tools in a loading and unloading position is moved back and forth, according to the preamble of claim 1, and relates to a support unit for this.
- a processing machine for flat material parts which has a machine frame and the machine frame held processing tools.
- a control unit is provided for controlling a machining sequence with the machining tools.
- the processing machine also has a support unit on which the flat material part to be processed can be placed for positioning in at least one main feed direction.
- the loading tables rest on rollers that move the table surface freely above the lower beam and below the upper beam between them.
- the loading table is moved out so far that the operator can comfortably lay the current sheet width.
- the feed tables pull the sheet into the machine.
- stop fingers inside the machine automatically align the inserted flat material.
- grabbers take over the workpiece.
- the EP 2 915 604 A1 describes a rear stop for a press brake, which has a slider and a work contact element, the latter being movably mounted on the slider and can move against a spring force on this back and forth.
- the DE 10 2013 106764 A1 describes a support unit in which it is not only necessary for pivoting the pivoting support unit to pivot about a pivot axis for inserting the bending part between the clamping tools, but it is simultaneously required, on the one hand by means of the Strombasisbewegsaku controlled by the machine control, the base unit in the feed direction on the On the other hand, to move clamping tools and in the height positioning direction such that a part to be bent portion of the bending part extends in the clamping plane and thus can be placed on the clamping surface of the lower clamping tool in parallel alignment with the clamping plane E.
- the EP 0 785 832 B1 discloses a Maschinenstiickanschlag raised for a machine tool comprising a support frame, a carrier movable in a stop direction Einstellwagen and a movable carriage from the stop element, wherein the stop element has a stop arm, which is provided with at least two stop faces in the spaced stop surfaces.
- the stop element is in a first position in which a first adjacent the machine tool arranged stop surface is in the active position, and in a second position can be brought, in which a second Stop surface is in the active position, while the machine tool side of the same lying stop surfaces are in the inactive position.
- the present invention seeks to provide a simpler support unit for a processing machine for flat material parts, which is easier and more precisely controlled, in particular with an electric drive. Further, it is another independent object of the present invention to improve the drawing-in operation of the laid-up flat material part. Another independent objective is to increase occupational safety.
- the invention provides a support unit for a processing machine for flat material parts with the features of claim 1.
- the support unit is a far away, on one side about a pivotable parallel to the cheek pivot axis pivotally mounted loading table whose free end rests in the parking position on a supporting surface associated with the lower cheek, which is connected via a sliding surface with the upper side of the lower cheek, and the clamped End of the feed table is moved by a drive in the extension direction in its loading and unloading position, wherein the lower edge of the insert table from the support surface on the slide surface and on the upper side of the lower cheek out slides, and the top of the support for the bottom of the feed table in the Forming and removal position for a flat material part, a mechanism can be specified in a very simple manner, with the low-maintenance and safe flat material parts can be charged.
- the insert table is made of a material from the group of CDF (compact density fibreboard), such as the high-density and melamine-coated Plate material from Kronospan, POM for poloxymethylene, sold under the name Delrin by DuPont, double-sided or one-sided resin-coated plates with corresponding core, wooden plates, MDF boards, brush plates, so-called ball plates, or aluminum plates. Then the bottom can still be sufficiently advanced over the under cheek, but the top is (with the exception of the use of a ball plate) rough enough to entrain the sheet material part without slippage when retracting the liner.
- the controller may initiate an acceleration operation of the loading table via an increase in speed, in which the power supply to the electric motor is incremented, rather than simply turning it on, effectively effectively jumping from a zero speed to the final speed.
- the underside is continuously smooth, has a stiff front lower edge and the top allows laying a flat material without snagging.
- the table may consist of two plates fastened to one another, for example glued, of which the lower, which forms the lower corner edge and the underside, is smooth and the lower coating has a smaller coefficient of friction than the upper coating.
- the insert table can thus consist at least on the upper side of a friction-permitting material.
- the plate can thus be in one piece, two parts with a coating or three parts with core and two opposite, in particular different coatings, wherein the lower coating has a smaller coefficient of friction than the upper coating.
- the resiliently clamped about the pivot axis of the insertion table can be realized by at least one attached to the table surface leaf spring, the other end is aligned in the extension direction and attached to an element associated with the drive.
- the leaf spring can then be fastened in particular to the underside of the loading table, in particular screwed.
- the element assigned to the drive comprises a profile which can be moved back and forth in the extension direction.
- the leaf spring plate can also be made narrow and be fastened only with one fastening element on the feed table and on the movable holder.
- two or more such leaf springs are provided transversely to the travel axis.
- it may be the leaf springs to parabolic springs. Further embodiments are given in the dependent claims.
- a support unit for a processing machine according to the invention is defined in claim 14.
- a support unit according to an embodiment of the invention is intended for use in a processing machine for flat material parts.
- a processing machine can be any known bending machine, but in particular it should have at least two stands, usually it has three, four or six stands in order to be able to process wider sheet metal parts as flat material parts.
- Fig. 1 now shows a very schematic side view of essential for the embodiments of the present invention parts of such a processing machine with a support unit in a retracted and in an extended position.
- the support unit is here called insert table or support table 10, which is also shown in dashed lines as extended support table 10 '.
- Fig. 2 shows the support table 10 after Fig. 1 with an embodiment of a suspension and motorization in a perspective view from below.
- Fig. 3 shows a detail of the Fig. 1 with the extended support table 10 'shown in dashed lines from the circle marked III Fig. 1 and Fig. 4 shows a part of the Fig. 2 in another perspective bottom view with respect to the attachment of the support table 10 to its frame.
- the lower beam associated machining tool 22 and the upper beam 23 are shown, wherein the upper beam 23 is shown in the open state before a possible jamming of the flat material part, not shown in the drawings.
- Reference numeral 10 denotes the inserting table located in the retracted position.
- Reference numeral 10 has been used in the extended position for the same insert table shown in dashed lines.
- the extension length 35 is chosen so that the flat material can be easily placed by the operator.
- the level of the insert table in the extended position 10 ' is not equal to the level of the retracted insert table 10, in particular because the extended insert table rests with its bottom 16 directly on the top 29 of the lower beam 21, while the lower front corner edge 25th the free end 26 of the retracted insert table 10 on one of the Fig. 3 resulting Auflieschrräge 27 of the lower beam 21 is positioned.
- the plane of the extended tray 10 ' is slightly inclined to the level of the retracted loading table 10 by an angle.
- the value of the angle substantially corresponds to the tangent of the thickness of the plate of the insert table 10 to the distance of the mounting points of the leaf spring plate 12 on the transverse profile 14 of the inner edge 39 of the lower beam 21 at fully extended feed table 10.
- This value can be for example in the radian measure 1/50 , in particular between 1/20 and 1/100 or between 0.5 and 3 degrees.
- the pivot axis is indicated, which at the height of the attachment of the bottom 16 of the insert table 10 to the transverse profile 14 perpendicular to the plane of the Fig. 1 and thus runs parallel to the front corner edge 25 of the loading table 10 and to the inner edge 39 of the lower beam 21.
- the extension direction corresponds to the arrow with the reference numeral 45.
- the retraction 46 is then the reverse movement.
- the arrows 45 and 46 are aligned parallel to the top 15 and bottom 16 of the insert table 10. Due to the emergence of the front edge 25, the actual physical direction of extension of the loading table during the extension is slightly monotonically inclined upwards inclined and the retraction slightly inclined monotonically downward.
- a ein and then to be machined flat material part, which is not shown in the drawings, lies flat on the top 15 after placing on the insert table 10.
- the insert table 10 is fastened exclusively in the region remote from the cheek, that is to say in the retraction direction 46, via two leaf spring plates 12 on a transverse profile 14.
- the support unit is thus formed by the insert table 10, which is remote from the cheek, is clamped on one side about a pivot axis 47 aligned parallel to the cheek orientation 39.
- the leaf spring plates 12 are preferably aligned rectangular with their longer dimension in traversing directions 45/46 of the loading table 10.
- the attachment is accomplished via a plurality of screws 13, for example two in the region of two corners of the respective leaf spring plate 12 associated with the free end 26 of the insert table 10.
- the leaf spring plates 12 are at their opposite corners (not visible in the drawings) on the transverse profile 14 via this sunken screws attached.
- the leaf spring plates 12 are flexible enough to allow deflection of the table 10 by a few degrees without exerting excessive, abrasive action on the leading edge 25.
- the transverse profile 14 is attached at its two free ends via a respective mounting bracket 11 to a respective side profile 30.
- the side profile 30 is arranged substantially horizontally below the plane of the top 29 of the lower beam 21.
- the mounting bracket 11 in this case have guide elements, not shown in the drawings, which allows a longitudinal displacement of the mounting bracket 11 on the respective side profile 30 in the direction of the driving axes 45/46.
- two side profiles 30 are provided in the bottom view, in principle, it may also be a single profile 30, which may also be arranged in the middle of the transverse profile 14.
- the mounting bracket 11 is then connected to its engaging in the leadership of the side profile 30 element with an electric drive 40 to the support table 10 in the FIG. 1 shown in an extended position, in which case the mounting bracket 11 'is arranged in the extended position in the front region of the side profile 30. With this furthest advanced position also results in the maximum increasing angle of the extended table 10 '.
- An electric drive 40 has the advantage of simple design and slow start compared to possible hydraulic drives for moving the support table 10th
- the lower front edge 25 of the loading table 10 rests on a Auflieschrräge 27 of the lower beam 21.
- the arrangement of side profile 30 with the rearward position of the transverse profile 14 is designed accordingly.
- the upper side 15 of the loading table 10 stretches a horizontal plane which is aligned with the upper side 29 of the cheek 21 so that a flat material lying on the cheek 21 and retracted loading table 10 lies flat, level and horizontal on these two surfaces.
- This Auflieschrräge 27 may for example have an angle between 10 and 30 degrees to the horizontal.
- This Auflieschrräge 27 extends slightly further than the retracted laid table 10 in both directions, for example, has a length in the extension direction 45 of between 3 and 6 inches and then goes near the cheek in a steeper sliding surface 28, that is, a larger angle of for example, between 30 and 45 degrees with respect to the horizontal plane.
- the length of the sliding surface 28 in the extension direction 45 can be between 1 and 3 centimeters and serves to lift the Aufliegeticians 10 from the area below the support plane of the flat material part in the area between the cheeks 21 and 23.
- the feed tray 10 moves slidably over the Auflieschrräge 27 in the region of Aufgleit Structure 28 and finally pushes the feed tray 10 in front of the cheeks 21, 22, 23 positioning of the Sheets in front. Since the insert table 10 is fixed to the transverse profile 14 about the pivot axis 47 only via the leaf spring plates 12, its free end 26 can extend out of the originally predetermined plane.
- a gripper (not shown in the drawings) is preferably provided on the left and right, which are arranged so that they are located next to the feed tray, when it is in its rearward position, so that in not shown in the drawings end edge of an applied on the tray 10 flat material against each abutment surface of an open gripper pliers and this thus forms a predefined stop.
- two or more loading tables 10 are arranged with a free space lying between the side edges 17 in order to arrange the gripper tongs in this intermediate space.
- a stop line arranged transversely to the extension direction and parallel to the cheek edge 39 is then formed.
- these gripper tongs are arranged in a synchronized manner displaceably in the extension direction in order to form different stop depths for the flat material.
- the grippers can be closed automatically or in response to a control command and then move the clamped sheet forward in the extension direction 45 to be clamped by the cheeks 21 and 23 and the tool 22 to be bent.
- the stop elements can also be provided fixed in position.
- control unit can perform a multi-stage process: First, the loading table 10 is extended and the method is interrupted for manual handling by the user. After inserting a piece of flat material, which can be detected by sensors and reported to the control unit, the insert table 10 is retracted and executed the predetermined and preprogrammed bending steps. Subsequently, the insert table is extended again, either for removal of the sheet or for a further interruption and a manual of the then extended flat material handling by the user. This handling can cause tilting, turning or turning.
- manual handling can include turning, which combines turning and tilting. After completion of the manual handling by the user of the interrupted processing operation is picked up by a resumption command to the control unit again.
- the Fig. 5 shows a plan view of another embodiment of a two-part support table 10.
- This consists of a lower base plate 50 made of sheet metal, in particular a CNS (chromium-nickel-steel) sheet metal.
- CNS chromium-nickel-steel
- bores 51 are inserted, through which the screw head can be actuated by screws which connect the one free end of a resilient element, in particular a leaf spring, screwed to the support table, so that it by attaching to a transverse profile of the device a slope the base plate 50 from the plane of the Fig. 5 allowed.
- the holes 52 then provide clearance for the fastening screws for the resilient element on the transverse profile.
- Fig. 5 Not visible in Fig. 5 is that the sheet of the base plate 50 is bent at the sides 57 downwards in the direction of the drawing sheet.
- FIG. 6 an enlarged front view of the front corner 90 of the support table 10 after Fig. 5 shown; and the Fig. 7 shows an enlarged sectional view taken along the line VII-VII Fig. 5 ,
- the short edge 57 covers a sliding plate 60 made of CDF (compact density fibreboard) material.
- the sliding plate 60 may also be made of a different material with good sliding properties and high stability.
- the top of the bed table is more generally formed by a base plate 50 which has a higher coefficient of friction than the lower slide plate 60 and / or advantageously a lower level of wear.
- there is a short edge 57 of the steel sheet which is shorter than the thickness of the CDF sliding plate 60, so that it surrounds this slide plate 60 like a skirt, and advantageously accompanied all four sides and in particular the two opposite long side edge of the slide plate 60.
- the short edge 57 has a height which is smaller than the thickness of the sliding plate 60, so that the edge 57 does not project beyond the bottom 16.
- the insert table slides on the CDF edge 64 on the bottom 16, which is then advanced and also runs on the lower beam 21.
- a chamfered leading edge 54 of the base plate 50 can be seen so that the sheet does not touch when inserted and there are no sharp edges when the table is outside in the working area of an inserting a sheet to be machined operator, to minimize the risk of injury.
- the ratio of the properties between the base plate 50 and the slide plate 60 is selected so that the slide plate 60 has better sliding properties than the base plate 50, but the base plate 50 has better rigidity and abrasion resistance than the slide plate 60.
- the non-releasable connection between the base plate 50 and the slide plate 60 is achieved by adhesive 82, which is placed in grooves 80 which are arranged in the feed direction 45.
- adhesive 82 With a width of the base plate 50 of 864 millimeters with a width of the sliding plate of 862 millimeters (thickness of the sheet of the base plate 50 equal to 1 millimeter), five such provided over the entire length of the slide plate 60 grooves 80 with a width of 25 millimeters and a depth be provided by 2.5 millimeters in the sliding plate 60, which is still sufficiently thick with a thickness of 12.5 millimeters.
- the adhesive may be a polymer mounting adhesive.
- a borehole 51 is seen, which is provided in the plate 50 with a diameter which is larger than a screw head to be inserted into the sliding plate 60.
- a screw head to be inserted into the sliding plate 60.
- the holes 52 according to Fig. 5 in the sliding plate 60 with a considerably larger diameter then provide a free space for the mounting screws for the resilient element on the cross profile.
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- Engineering & Computer Science (AREA)
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- Bending Of Plates, Rods, And Pipes (AREA)
Description
Die vorliegende Erfindung betrifft eine Bearbeitungsmaschine für Flachmaterialteile umfassend ein Maschinengestell, eine Unterwange, eine Oberwange, mindestens ein der Unterwange zugeordnetes und an dem Maschinengestell gehaltenes Bearbeitungswerkzeug, eine Steuerungseinheit zur Steuerung eines Bearbeitungsablaufs mit den Bearbeitungswerkzeugen, und eine Auflageeinheit, auf welcher das zu bearbeitende Flachmaterialteil für eine Positionierung in der Bearbeitungsmaschine auflegbar ist, wobei die Auflageeinheit aus einer Parkposition in einer Ausfahrrichtung zwischen die offenen Bearbeitungswerkzeuge in eine Beschickungs- und Entnahmeposition hin und wieder zurück bewegbar ist, gemäß dem Oberbegriff des Anspruchs 1, und sie betrifft eine Auflageeinheit hierfür.The present invention relates to a processing machine for flat material parts comprising a machine frame, a lower beam, a top beam, at least one of the lower beam associated and held on the machine frame machining tool, a control unit for controlling a processing sequence with the processing tools, and a support unit on which the flat material to be processed can be placed for positioning in the processing machine, wherein the support unit from a parking position in a direction of extension between the open processing tools in a loading and unloading position is moved back and forth, according to the preamble of claim 1, and relates to a support unit for this.
Aus der gattungsbildenden
Aus dem Prospekt "XXl-Center" der RAS Reinhardt Maschinenbau GmbH, datiert 06/2012, erhältlich unter "XXL-Center_75xx-2:d.pdf" auf der Website der besagten Firma wird auf sogenannte Einlegetische aus Chromstahl hingewiesen, die zu Beginn des Biegezyklus aus der Arbeitsebene auftauchen und nach vorne aus der Maschine herausfahren. Die Einlegetische liegen dabei auf Rollen auf, die die Tischfläche frei oberhalb der Unterwange und unterhalb der Oberwange zwischen diesen vor- und zurückfahren. Dabei wird der Einlegetisch soweit hinausgefahren, dass der Bediener die aktuelle Blechbreite bequem auflegen kann. Sobald durch den Bediener ein Fussschalter gedrückt wird, ziehen die Einlegetische das Blech in die Maschine. Während die Einlegetische zurück in die Maschine fahren, richten Anschlagfinger im Innern der Maschine das eingelegte Flachmaterial automatisch aus. Sobald das Blech an den Anschlagfingern anliegt, übernehmen Greiferzangen das Werkstück.From the generic
From the prospectus "XXl-Center" of RAS Reinhardt Maschinenbau GmbH, dated 06/2012, available under "XXL-Center_75xx-2: d.pdf" on the website of said company is referred to so-called insert tables made of chrome steel, the beginning of Emerge bending cycle from the work plane and drive forwards out of the machine. The loading tables rest on rollers that move the table surface freely above the lower beam and below the upper beam between them. The loading table is moved out so far that the operator can comfortably lay the current sheet width. As soon as the operator presses a foot switch, the feed tables pull the sheet into the machine. While the feed trays move back into the machine, stop fingers inside the machine automatically align the inserted flat material. As soon as the metal sheet touches the stop fingers, grabbers take over the workpiece.
Die
Die
Die
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine einfachere Auflageeinheit für eine Bearbeitungsmaschine für Flachmaterialteile anzugeben, die einfacher und genauer ansteuerbar ist, insbesondere mit einem elektrischen Antrieb. Ferner ist es ein weiteres unabhängiges Ziel der vorliegenden Erfindung, den Einzugsvorgang des aufgelegten Flachmaterialteils zu verbessern. Eine andere davon unabhängige Zielsetzung liegt darin, die Arbeitssicherheit zu erhöhen.Based on this prior art, the present invention seeks to provide a simpler support unit for a processing machine for flat material parts, which is easier and more precisely controlled, in particular with an electric drive. Further, it is another independent object of the present invention to improve the drawing-in operation of the laid-up flat material part. Another independent objective is to increase occupational safety.
Die Erfindung liefert eine Auflageeinheit für eine Bearbeitungsmaschine für Flachmaterialteile mit den Merkmalen des Anspruchs 1.The invention provides a support unit for a processing machine for flat material parts with the features of claim 1.
Dadurch dass, die Auflageeinheit ein wangenfern, einseitig um eine parallel zur Wangenausrichtung verschwenkbare Schwenkachse federnd eingespannter Einlegetisch ist, dessen freies Ende in der Parkposition auf einer der Unterwange zugeordneten Auflagefläche aufliegt, die über eine Aufgleitfläche mit der Oberseite der Unterwange verbunden ist, und das eingespannte Ende des Einlegetisches über einen Antrieb in der Ausfahrrichtung in seine Beschickungs- und Entnahmeposition bewegbar ist, wobei die Unterkante des Einlegetisches von der Auflagefläche über die Aufgleitfläche und über die Oberseite der Unterwange hinaus gleitet, und die Oberseite die Auflage für die Unterseite des Einlegetisches in der Beschickungs- und Entnahmeposition für ein Flachmaterialteil bildet, kann in sehr einfacher Weise eine Mechanik angegeben werden, mit der wartungsarm und sicher Flachmaterialteile beschickt werden können.The fact that, the support unit is a far away, on one side about a pivotable parallel to the cheek pivot axis pivotally mounted loading table whose free end rests in the parking position on a supporting surface associated with the lower cheek, which is connected via a sliding surface with the upper side of the lower cheek, and the clamped End of the feed table is moved by a drive in the extension direction in its loading and unloading position, wherein the lower edge of the insert table from the support surface on the slide surface and on the upper side of the lower cheek out slides, and the top of the support for the bottom of the feed table in the Forming and removal position for a flat material part, a mechanism can be specified in a very simple manner, with the low-maintenance and safe flat material parts can be charged.
Es wird eine für den Bediener einfachere Auflagefläche vorgeschlagen, die zudem eine automatische Justierung des zu bearbeitenden Flachmaterialteils gestattet.It is proposed a simpler support surface for the operator, which also allows automatic adjustment of the flat material part to be processed.
Vorteilhafterweise ist der Einlegetisch aus einem Material aus der Gruppe von CDF (compact density fibreboard), wie das hochverdichtete und Melaminbeschichtete Plattenmaterial von Kronospan, POM für Poloxymethylen, unter dem Namen Delrin von DuPont vertrieben, beidseitig oder einseitig Kunstharz-beschichtete Platten mit entsprechendem Kern, Holzplatten, MDF-Platten, Bürstenplatten, sogenannte Kugelplatten, oder Aluminiumplatten. Dann kann die Unterseite immer noch in ausreichender Weise über die Unterwange vorgeschoben werden, aber die Oberseite ist (mit Ausnahme des Einsatzes einer Kugelplatte) rauh genug, um bei einem Einziehen des Einlagetisches das Flachmaterialteil ohne Schlupf mitzuziehen. Zusätzlich kann die Steuerung beim Anfahren des Einziehvorgangs einen Beschleunigungsvorgang des Einlegetisches über eine Geschwindigkeitssteigerung auslösen, in dem die Leistungszuführung für den Elektromotor inkrementell vorgenommen wird, anstatt diesen einfach einzuschalten und damit effektiv faktisch von einer Geschwindigkeit Null auf die Endgeschwindigkeit zu springen.Advantageously, the insert table is made of a material from the group of CDF (compact density fibreboard), such as the high-density and melamine-coated Plate material from Kronospan, POM for poloxymethylene, sold under the name Delrin by DuPont, double-sided or one-sided resin-coated plates with corresponding core, wooden plates, MDF boards, brush plates, so-called ball plates, or aluminum plates. Then the bottom can still be sufficiently advanced over the under cheek, but the top is (with the exception of the use of a ball plate) rough enough to entrain the sheet material part without slippage when retracting the liner. In addition, upon startup of the retraction operation, the controller may initiate an acceleration operation of the loading table via an increase in speed, in which the power supply to the electric motor is incremented, rather than simply turning it on, effectively effectively jumping from a zero speed to the final speed.
Neben einer Ausgestaltung als einstückige Fläche aus einem einheitlichen Material, also einer Platte, kann sie auch strukturiert aufgebaut sein, sofern die Unterseite durchgehend glatt ist, eine steife vordere Unterkante aufweist und die Oberseite ein Auflegen eines Flachmaterialteils ohne Verhaken gestattet. Insbesondere kann der Tisch aus zwei aneinander befestigten, zum Beispiel verklebten Platten bestehen, von denen die untere, die die untere Eckkante und die Unterseite bildet, glatt ist und wobei die untere Beschichtung einen kleineren Reibungskoeffizienten hat als die obere Beschichtung.In addition to a configuration as a one-piece surface made of a uniform material, ie a plate, it may also be structured, provided that the underside is continuously smooth, has a stiff front lower edge and the top allows laying a flat material without snagging. In particular, the table may consist of two plates fastened to one another, for example glued, of which the lower, which forms the lower corner edge and the underside, is smooth and the lower coating has a smaller coefficient of friction than the upper coating.
Der Einlegetisch kann somit mindestens auf der Oberseite aus einem einen Reibschluss ermöglichenden Material bestehen. Die Platte kann also einteilig, zweiteilig mit einer Beschichtung oder dreiteilig mit Kern und zwei gegenüberliegenden, insbesondere unterschiedlichen Beschichtungen vorliegen, wobei die untere Beschichtung einen kleineren Reibungskoeffizienten hat als die obere Beschichtung.The insert table can thus consist at least on the upper side of a friction-permitting material. The plate can thus be in one piece, two parts with a coating or three parts with core and two opposite, in particular different coatings, wherein the lower coating has a smaller coefficient of friction than the upper coating.
Dabei wird under Reibungskoeffizient insbesondere der Reibungskoeffizient für die Haftreibung verstanden.Under friction coefficient is understood in particular the friction coefficient for the static friction.
Dabei kann die untere Platte einen Reibungskoeffizienten µ gegenüber Stahl von µ <= 0,2 haben, insbesondere wenn sie aus einem der oben genannten Materialien ist. Die mit dieser unteren Platte verbundene obere Platte, die die Oberseite bildet, auf der das Flachmaterialteil aufliegen soll, hat vorteilhafterweise einen Reibungskoeffizienten µ gegenüber Stahl von µ>= 0,2 hat.
Das federnd um die Schwenkachse federnd eingespannte Ende des Einlegetisches kann durch mindestens eine an der Tischfläche befestigte Blattfeder realisiert sein, deren anderes Ende in der Ausfahrrichtung ausgerichtet und an einem dem Antrieb zugeordneten Element befestigt ist. Die Blattfeder kann dann insbesondere an der Unterseite des Einlegetisches befestigt sein, insbesondere angeschraubt sein. Dabei umfasst vorteilhafterweise das dem Antrieb zugeordnete Element ein in Ausfahrrichtung hin und her bewegliches Profil umfasst.
Die Blattfederplatte kann auch schmal ausgeführt sein und nur mit jeweils einem Befestigungselement an dem Einlegetisch und an der verfahrbaren Halterung befestigt sein. Vorteilhafterweise sind quer zur Verfahrachse zwei oder mehr solche Blattfedern vorgesehen. Auch kann es sich bei den Blattfedern um Parabelfedern handeln.
Weitere Ausführungsformen sind in den abhängigen Ansprüchen angegeben. Eine Auflageeinheit für eine Bearbeitungsmaschine nach der Erfindung ist in Anspruch 14 definiert.In this case, the lower plate may have a coefficient of friction μ to steel of μ <= 0.2, especially if it is made of one of the above materials. The upper plate connected to this lower plate, which forms the upper side, on which the Flat material to rest, has advantageously a coefficient of friction μ against steel of μ> = 0.2 has.
The resiliently clamped about the pivot axis of the insertion table can be realized by at least one attached to the table surface leaf spring, the other end is aligned in the extension direction and attached to an element associated with the drive. The leaf spring can then be fastened in particular to the underside of the loading table, in particular screwed. In this case, advantageously, the element assigned to the drive comprises a profile which can be moved back and forth in the extension direction.
The leaf spring plate can also be made narrow and be fastened only with one fastening element on the feed table and on the movable holder. Advantageously, two or more such leaf springs are provided transversely to the travel axis. Also, it may be the leaf springs to parabolic springs.
Further embodiments are given in the dependent claims. A support unit for a processing machine according to the invention is defined in
Bevorzugte Ausführungsformen der Erfindung, die lediglich zur Erläuterung dienen, werden im Folgenden anhand der Zeichnungen beschrieben. In den Zeichnungen zeigen:
- Fig. 1
- zeigt eine sehr schematische Seitenansicht von hier wesentlichen Teilen einer Bearbeitungsmaschine mit dem Auflagetisch in einer eingefahrenen und in einer ausgefahrenen Position;
- Fig. 2
- zeigt den Auflagetisch nach
Fig. 1 mit einem Ausführungsbeispiel einer Aufhängung und Motorisierung in einer perspektivischen Ansicht von unten; - Fig. 3
- zeigt den Kreis III der
Fig. 1 als einen Detailausschnitt mit dem ausgefahrenen Auflagetisch; - Fig. 4
- zeigt einen Ausschnitt aus
Fig. 2 in einer anderen perspektivischen Unteransicht in Bezug auf die Befestigung des Auflagetischs an seinem Rahmen, - Fig. 5
- eine Draufsicht auf ein weiteres Ausführungsbeispiel eines zweiteiligen Auflagetisches;
- Fig. 6
- eine vergrösserte Vorderansicht der vorderen Ecke des Auflagetisches nach
Fig. 5 ; und - Fig. 7
- eine vergrösserte Schnittansicht entlang der Linie VII-VII in
Fig. 5 .
- Fig. 1
- shows a very schematic side view of here essential parts of a processing machine with the support table in a retracted and in an extended position;
- Fig. 2
- shows the support table
Fig. 1 with an embodiment of a suspension and motorization in a perspective view from below; - Fig. 3
- shows the circle III of the
Fig. 1 as a detail with the extended support table; - Fig. 4
- shows a section
Fig. 2 in another perspective Bottom view with respect to the attachment of the support table to its frame, - Fig. 5
- a plan view of another embodiment of a two-part support table;
- Fig. 6
- an enlarged front view of the front corner of the support table after
Fig. 5 ; and - Fig. 7
- an enlarged sectional view taken along the line VII-VII in
Fig. 5 ,
Eine Auflageeinheit gemäss einem Ausführungsbeispiel der Erfindung ist zum Einsatz in einer Bearbeitungsmaschine für Flachmaterialteile vorgesehen. Bei einer solchen Bearbeitungsmaschine kann es sich um eine beliebige bekannte Biegemaschine handeln, insbesondere sollte sie aber mindestens zwei Ständer aufweisen, meistens hat sie drei, vier oder sechs Ständer, um breitere Blechteile als Flachmaterialteile bearbeiten zu können.A support unit according to an embodiment of the invention is intended for use in a processing machine for flat material parts. Such a processing machine can be any known bending machine, but in particular it should have at least two stands, usually it has three, four or six stands in order to be able to process wider sheet metal parts as flat material parts.
Von der Bearbeitungsmaschine für Flachmaterialteile sind lediglich die Unterwange 21, das der Unterwange zugeordnete Bearbeitungswerkzeug 22 sowie die Oberwange 23 dargestellt, wobei die Oberwange 23 im offenen Zustand vor einem allfälligen Klemmen des in den Zeichnungen nicht dargestellten Flachmaterialteils dargestellt ist. Mit dem Bezugszeichen 10 ist der in der eingefahrenen Position befindliche Einlegetisch bezeichnet. Das Bezugszeichen 10' ist für denselben strichliniert dargestellten Einlegetisch in der ausgefahrenen Position verwendet worden. Die Ausfahrlänge 35 ist so gewählt dass das Flachmaterial vom Bediener bequem aufgelegt werden kann.Of the processing machine for flat material parts only the
Aus der
Die Ausfahrrichtung entspricht dem Pfeil mit dem Bezugszeichen 45. Die Einfahrrichtung 46 ist dann die umgekehrte Bewegung. Die Pfeile 45 und 46 sind parallel zur Oberseite 15 und Unterseite 16 des Einlegetisches 10 ausgerichtet. Aufgrund des Auflaufens der vorderen Kante 25 ist die tatsächliche körperliche Ausfahrrichtung des Einlegetisches während des Ausfahrens leicht monoton steigend nach oben geneigt und die Einfahrrichtung leicht monoton fallend nach unten geneigt.The extension direction corresponds to the arrow with the
Ein einzulegendes und anschliessend zu bearbeitendes Flachmaterialteil, das in den Zeichnungen nicht dargestellt ist, liegt nach dem Auflegen auf dem Einlegetisch 10 plan auf dessen Oberseite 15 auf.A einzulegendes and then to be machined flat material part, which is not shown in the drawings, lies flat on the top 15 after placing on the insert table 10.
Der Einlegetisch 10 ist ausschliesslich im wangenfernen Bereich, also in Einfahrrichtung 46, über hier zwei Blattfederplatten 12 an einem Querprofil 14 befestigt. Die Auflageeinheit ist also durch den Einlegetisch 10 gebildet, der wangenfern, einseitig um eine parallel zur Wangenausrichtung 39 ausgerichtete Schwenkachse 47 eingespannt ist. Die Blattfederplatten 12 sind vorzugsweise rechteckig mit ihrer längeren Dimension in Verfahrrichtungen 45/46 des Einlegetisches 10 ausgerichtet. Die Befestigung wird über mehrere Schrauben 13 bewerkstelligt wird, beispielsweise zwei im Bereich der zwei dem freien Ende 26 des Einlegetisches 10 zugeordneten Ecken der jeweiligen Blattfederplatte 12. Die Blattfederplatten 12 sind an ihren gegenüberlegenden Ecken (in den Zeichnungen nicht sichtbar) am Querprofil 14 über in dieses eingelassene Schrauben befestigt. Die Blattfederplatten 12 sind flexibel genug, um eine Auslenkung des Tisches 10 um wenige Grad zu gestatten, ohne dabei eine exzessive, abreibende Wirkung auf die vordere Eckkante 25 auszuüben.The insert table 10 is fastened exclusively in the region remote from the cheek, that is to say in the
Das Querprofil 14 ist an seinen beiden freien Enden über jeweils einen Montagewinkel 11 an einem jeweiligen Seitenprofil 30 befestigt. Das Seitenprofil 30 ist im wesentlichen horizontal unterhalb der Ebene der Oberseite 29 der Unterwange 21 angeordnet. Die Montagewinkel 11 verfügen dabei über in den Zeichnungen nicht dargestellte Führungselemente, welche eine Längsverschiebung der Montagewinkel 11 an dem jeweiligen Seitenprofil 30 in Richtung der Verfahrachsen 45/46 gestattet. In der Zeichnung der
Der Montagewinkel 11 ist dann mit seinem in der Führung des Seitenprofils 30 eingreifenden Element mit einem Elektroantrieb 40 verbunden, um den Auflagetisch 10 in der
Unter Bezugnahme auf die
Diese Aufliegeschräge 27 kann beispielsweise einen Winkel zwischen 10 und 30 Grad zur Horizontalen aufweisen. Diese Aufliegeschräge 27 erstreckt sich etwas weiter als der eingefahren angelegte Einlegetisch 10 in beide Richtungen, hat beispielsweise eine Länge in Ausfahrrichtung 45 von zwischen 3 und 6 Zentimeter und geht dann in Wangennähe in eine steilere Aufgleitfläche 28 über, das heisst, die einen grösseren Winkel von beispielsweise zwischen 30 und 45 Grad bezüglich der horizontalen Ebene aufweist. Die Länge der Aufgleitfläche 28 in Ausfahrrichtung 45 kann zwischen 1 und 3 Zentimeter betragen und dient zum Herausheben des Aufliegetisches 10 aus dem Bereich unterhalb der Auflageebene des Flachmaterialteils in den Bereich zwischen den Wangen 21 und 23. Bei Erreichen der Oberseite 29 der Unterwange 21 an der Kante 39 geht die Aufgleitfläche 28 dann in diese horizontal angeordnete Oberseite 29 über.This Auflieschrräge 27 may for example have an angle between 10 and 30 degrees to the horizontal. This Auflieschrräge 27 extends slightly further than the retracted laid table 10 in both directions, for example, has a length in the
Die Winkel der Aufliegeschräge 27 und der Aufgleitfläche 28 kann sich auch stetig zwischen beispielsweise 10 Grad zu einem Wert von 45 Grad erhöhen und dann mit einem steilen Abfall in die flache (=0 Grad) Oberseite 29 der Wange 21 übergehen, so dass die Aufliegeschräge 27 und die Aufgleitfläche 28 eine gemeinsame im Querschnitt S-förmig gebogene Fläche bilden.The angle of the
Bei einer Vorwärtsbewegung des Einlegetisches 10 in Richtung 45 durch die Vorwärtsbewegung der Montagewinkel 11 bewegt sich der Einlegetisch 10 gleitend über die Aufliegeschräge 27 in den Bereich der Aufgleitfläche 28 und schliesslich stösst der Einlegetisch 10 in den vor den Wangen 21, 22, 23 liegenden Positionierraum des Bleches vor. Da der Einlegetisch 10 nur über die Blattfederplatten 12 federnd an dem Querprofil 14 um die Schwenkachse 47 befestigt ist, kann sich sein freies Ende 26 aus der ursprünglich vorgegebenen Ebene herauserstrecken.During a forward movement of the feed table 10 in the
Dann kann ein Benutzer der Bearbeitungsanlage ein Blech auf die Oberseite 15 des ausgefahrenen Einlegetisches 10' legen, wobei das Blech durch sein Gewicht und einen Reibschluss auch dann liegen bleibt, wenn der Einlegetisch 10 in Richtung 46 zurückgefahren wird und sich dabei wieder in die Ausgangslage begibt.Then a user of the processing plant put a sheet on the top 15 of the extended feed tray 10 ', the sheet also remains due to its weight and a frictional engagement when the
Neben den Seitenkanten 17 des Einlegetisches 10 sind links und rechts vorzugsweise jeweils eine (in den Zeichnungen nicht dargestellte) Greiferzange vorgesehen, die so angeordnet sind, dass sie sich neben dem Einlegetisch befinden, wenn sich dieser in seiner rückwärtigen Position befindet, so dass eine in den Zeichnungen nicht dargestellte Endkante eines auf dem Einlegetisch 10 aufgelegten Flachmaterials gegen jeweils eine Anschlagfläche einer offenen Greiferzange stösst und diese somit einen vordefinierten Anschlag bildet. Vorzugsweise sind zwei oder mehr Einlegetische 10 mit einem zwischen den Seitenkanten 17 liegenden freien Raum angeordnet, um in diesem Zwischenraum die Greiferzangen anzuordnen. Bei zwei Greiferzangen ist dann eine quer zur Ausfahrrichtung und parallel zur Wangenkante 39 angeordnete Anschlaglinie gebildet. Vorteilhafterweise sind diese Greiferzangen synchronisiert in Ausfahrrichtung verschieblich angeordnet, um unterschiedliche Anschlagtiefen für das Flachmaterial zu bilden. Nach Kontakt mit der Anschlagfläche können die Greiferzangen automatisch oder auf einen Steuerbefehl geschlossen werden und bewegen dann das eingespannte Flachmaterial nach vorne in Ausfahrrichtung 45, um durch die Wangen 21 und 23 geklemmt und das Werkzeug 22 gebogen zu werden. Die Anschlagelemente können aber auch positionsfest vorgesehen sein.In addition to the side edges 17 of the insert table 10, a gripper (not shown in the drawings) is preferably provided on the left and right, which are arranged so that they are located next to the feed tray, when it is in its rearward position, so that in not shown in the drawings end edge of an applied on the
Insbesondere kann die in den Zeichnungen nicht dargestellte Steuerungseinheit ein mehrstufiges Verfahren ausführen: Zuerst wird der Einlegtisch 10 ausgefahren und das Verfahren für ein manuelles Handling durch den Benutzer unterbrochen. Nach einem Einlegen eines Flachmaterialstücks, welches durch Sensoren erfasst und der Steuerungseinheit gemeldet werden kann, wird der Einlegetisch 10 eingefahren und die vorbestimmten und vorprogrammierten Biegeschritte ausgeführt. Anschliessend wird der Einlegetisch erneut ausgefahren, entweder zur Entnahme des Flachmaterials oder für einen weiteren Unterbruch und ein manuelles des dann ausgefahrenen Flachmaterials Handling durch den Benutzer. Dieses Handling kann ein Kippen, Drehen oder ein Wenden einhalten.In particular, the control unit, not shown in the drawings, can perform a multi-stage process: First, the loading table 10 is extended and the method is interrupted for manual handling by the user. After inserting a piece of flat material, which can be detected by sensors and reported to the control unit, the insert table 10 is retracted and executed the predetermined and preprogrammed bending steps. Subsequently, the insert table is extended again, either for removal of the sheet or for a further interruption and a manual of the then extended flat material handling by the user. This handling can cause tilting, turning or turning.
Beim Kippen wird das Flachmaterial um seine Biegeachse um 180 Grad gedreht, so dass die vorher aussen liegenden Flachmaterialabschnitte nun innen liegen. Beim Drehen wird das Flachmaterial um die vertikale Achse um 180 Grad gedreht, so dass hier die Oberseite auch oben zu liegen kommt. Schliesslich kann das Manuelle Handling auch das Wenden umfassen, bei denen das Drehen und Kippen zusammengefasst wird. Nach Beendigung des Manuellen Handlings durch den Benutzer wird der unterbrochene Bearbeitungsvorgang durch einen Wiederaufnahmebefehl an die Steuerungseinheit wieder aufgegriffen.When tilting, the flat material is rotated about its bending axis by 180 degrees, so that the previously outer flat material sections are now inside. When turning the flat material is rotated by 180 degrees around the vertical axis, so that the upper side also comes to rest here. Finally, manual handling can include turning, which combines turning and tilting. After completion of the manual handling by the user of the interrupted processing operation is picked up by a resumption command to the control unit again.
Die
Nicht sichtbar in
Dabei ist nun in
An der in der
Auf der der Oberseite 15 des Einlegtisches 10 zugewandten Seite deckt die Stahlblech-Basisplatte 50 im Querschnitt L-förmig das CDF-Material als Gleitplatte 60 ab. Dabei besteht eine kurze Kante 57 des Stahlblechs, welche kürzer als die Dicke der CDF Gleitplatte 60 ist, so dass sie diese Gleitplatte 60 wie eine Schürze umgibt, und vorteilhafterweise alle vier Seiten und insbesondere die beiden gegenüberliegenden langen Seitenkante der Gleitplatte 60 begleitet. Die kurze Kante 57 weist eine Höhe auf, die kleiner als die Dicke der Gleitplatte 60 ist, so dass die Kante 57 nicht über die Unterseite 16 übersteht.On the side facing the top 15 of the loading table 10 covers the steel
In der
Der Einlegetisch gleitet auf der CDF-Kante 64 auf der Unterseite 16, die dann vorgeschoben wird und auch auf der Unterwange 21 aufläuft. Auf der gegenüberliegenden Seite, also der Oberseite 15, ist eine abgefaste Vorderkante 54 der Basisplatte 50 zu erkennen, damit das Blech beim Einschieben nicht aneckt und keine scharfe Kanten bestehen, wenn der Tisch draussen in den Arbeitsbereich eines ein zu bearbeitendes Blech einlegenden Bedieners ist, um eine Verletzungsgefahr zu minimieren.The insert table slides on the
Das Verhältnis der Eigenschaften zwischen Basisplatte 50 und Gleitplatte 60 wird so gewählt, dass die Gleitplatte 60 eine bessere Gleitfähigkeit als die Basisplatte 50 hat, die Basisplatte 50 aber eine bessere Steifigkeit und Abriebfestigkeit als die Gleitplatte 60.The ratio of the properties between the
Die unlösbare Verbindung zwischen der Basisplatte 50 und der Gleitplatte 60 wird durch Klebstoff 82 erreicht, der in Nuten 80 gegeben wird, die in der Vorschubrichtung 45 angeordnet sind. Bei einer Breite der Basisplatte 50 von 864 Millimetern bei einer Breite der Gleitplatte von 862 Millimeter (Dicke des Blechs der Basisplatte 50 gleich 1 Millimeter) können fünf solcher über die gesamte Länge der Gleitplatte 60 vorgesehenen Nuten 80 mit einer Breite von 25 Millimetern und einer Tiefe von 2.5 Millimeter in der Gleitplatte 60 vorgesehen sein, die mit einer Dicke von 12.5 Millimetern noch ausreichend dick ist. Der Klebstoff kann ein Polymer-Montagekleber sein. Es sollten mindestens zwei solcher Nuten 80 vorgesehen sein. Sie könnten auch quer angeordnet sein, auch wenn die Längsanordnung bevorzugt ist.The non-releasable connection between the
In der
Claims (14)
- Metal-cutting machine for flat material parts, comprising:- a machine frame,- a lower beam (21) having a thereto assigned support surface, which is connected via a sliding surface to the top side of the lower beam,- an upper beam (23),- at least one machining tool (21, 22, 23) assigned to the lower beam (21) and held on the machine frame,- a control unit for controlling a machining cycle with the machining tools (21, 22, 23), and- a support unit (10), on which the flat material part to be machined can be placed for a positioning in the machining machine,wherein the support unit (10) is movable out of a parking position, in a direction of extension (45), between the open machining tools (21, 22, 23) into a loading and removal position and back again,
characterized in that the support unit, remote from the beams, is a feed table (10), on one side resiliently connected about a pivot axis (47) that is pivotable parallel to the beam orientation (39), wherein a free end (26) of it rests in the parking position on the support surface (27) assigned to the lower beam (21),
wherein the bottom edge (25) of the feed table (10) slides from the support surface (27) over the sliding surface (28) and beyond the top side (29) of the lower beam, and the top side (29) forms the support for the bottom side (16) of the feed table (10) in the loading and removal position for a flat material part.
wherein a clamped end of the receiving unit is movable by means of the drive, in the direction of extension, into its loading and removal position,- a drive connected to the support unit,- at least one spring, with which the support unit is connected to the drive, - Metal-cutting machine according to claim 1, characterized in that that end (36) of the feed table (10) support unit which is resiliently clamped about the pivot axis (47) is realized by at least one leaf spring (12) fastened to the table surface, the other end of which leaf spring is oriented in the direction of extension (45) and is fastened to an element (14, 11) assigned to the drive (40).
- Metal-cutting machine according to claim 2, characterized in that the leaf spring (12) is fastened to the bottom side (16) of the feed table (10), especially screwed to the table, and in that the element (14, 11) assigned to the drive comprises a profile (11) which is movable back and forth in the direction of extension (45).
- Metal-cutting machine according to any one of claims 1 to 3, characterized in that the support surface (27) is a surface ascendingly inclined relative to the beam top side (29) in the direction of extension (45), especially with an angle between 10 and 30 degrees, and in that the sliding surface (28) is a surface ascendingly inclined relative to the beam top side (29) in the direction of extension (45), especially with an angle between 30 and 45 degrees.
- Metal-cutting machine according to Claim 4, characterized in that the support surface (27) has in the direction of extension (45) a width between 3 and 6 centimetres, and in that the sliding surface (28) has in the direction of extension (45) a width between 1 and 3 centimetres.
- Metal-cutting machine according to any one of claims 1 to 5, characterized in that the feed table (10) is a one-piece plate produced from a homogeneous material.
- Metal-cutting machine according to any one of claims 1 to 5, characterized in that the feed table (10) is a plate composed of at least two planar plates (50, 60), in particular at least two planar plates all bonded together, of which the lower plate, which forms the lower corner edge (25) and the bottom side (16) of the feed table (10), has a coefficient of friction in relation to steel which is smaller than the coefficient of friction of the upper plate (50), which forms the top side (15) of the feed table (10), in relation to steel.
- Metal-cutting machine according to claim 7, characterized in that the corner edge (25) and bottom side (16) of the plate (60) forming the feed table (10) has a coefficient of friction µ in relation to steel of µ <= 0.2, and in that the upper plate (50), which forms the top side (15) of the feed table (10), has a coefficient of friction µ in relation to steel of µ > 0.3.
- Metal-cutting machine according to claim 7, characterized in that the feed table (10) comprises a core, and a lower coating forming the lower plate and an upper coating forming the upper plate, wherein the lower coating has a smaller coefficient of friction in relation to steel than the upper coating in relation to steel, wherein the coatings can be synthetic resin coatings.
- Metal-cutting machine according to any one of claims 7 to 9, characterized in that the upper plate is made of steel.
- Metal-cutting machine according to any one of claims 7 to 10, characterized in that the lower plate is made of a material from the group comprising CDF (compact density fibreboard), melamine-coated plate material, POM (poloxymethylene), wood, MDF, so-called brush plates, or aluminium.
- Metal-cutting machine according to any one of claims 1 to 5, characterized in that the feed table (10) is a so-called ball plate.
- Metal-cutting machine according to any one of claims 1 to 12, characterized in that the control unit is designed to issue to the drives of the support unit (10) control commands to move the support unit (10) out of the parking position, in a direction of extension (45), between the open metal-cutting tools (21, 22, 23) into a loading and removal position, so as subsequently to interrupt the dispatching of control commands for a manual handling by the user, wherein the end of the manual handling, which consists of the group comprising the feed-in, the removal, the tilting, the rotation or the turning of the flat material piece, following a positioning of the said flat material piece on the feed table (10) of the support unit, is either detected by sensors and reported to the control unit or is triggered by a stop switch signal, after which further control commands are issued by the control unit to retract the feed table (10) and to execute pre-specified and/or pre-programmed bending steps, which end with an extension of the feed table (10), in order to be ready either for the removal of the flat material piece or for a further interruption and a further manual handling.
- Support unit (10) for a metal-cutting machine according to any one of claims 1 to 13, comprising a feed table (10) clamped remote from the beams and on one side, wherein the resiliently clamped end (36) of the feed table (10) is movable by means of a drive (40) in a direction of extension (45) oriented transversely to the clamping direction (47), wherein the clamped end (36) of the feed table (10) is realized by at least one leaf spring (12) fastened to the table surface of the feed table, the other end of which leaf spring is oriented in the direction of extension (45) and fastened to an element (14, 11) assigned to the drive (40).
Applications Claiming Priority (1)
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EP16156741 | 2016-02-22 |
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EP3208008A1 EP3208008A1 (en) | 2017-08-23 |
EP3208008B1 true EP3208008B1 (en) | 2018-03-28 |
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Application Number | Title | Priority Date | Filing Date |
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EP17157321.5A Not-in-force EP3208008B1 (en) | 2016-02-22 | 2017-02-22 | Processing machine for flat material parts and a support unit for same |
Country Status (2)
Country | Link |
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US (1) | US20170252794A1 (en) |
EP (1) | EP3208008B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3778048A1 (en) | 2019-08-15 | 2021-02-17 | Thalmann Maschinenbau AG | Processing machine for flat material parts with a laying unit and method therefor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3817075A (en) * | 1973-03-01 | 1974-06-18 | Tapco Products Co | Sheet metal brake |
DE19529570A1 (en) * | 1995-08-11 | 1997-02-20 | Reinhardt Gmbh Maschbau | Workpiece stop device |
DE102006047109A1 (en) * | 2006-09-27 | 2008-04-03 | Ras Reinhardt Maschinenbau Gmbh | processing machine |
NZ564570A (en) * | 2007-12-18 | 2010-02-26 | Scott Technology Ltd | Metal folding apparatus |
ITVI20110331A1 (en) * | 2011-12-22 | 2013-06-23 | Codatto Internat S P A | INDUSTRIAL MACHINE FOR BENDING FLAT METAL ELEMENTS |
DE102013106764A1 (en) * | 2013-06-27 | 2014-12-31 | Ras Reinhardt Maschinenbau Gmbh | Handling device and bending machine and method for bending a bent part |
JP6397729B2 (en) | 2014-03-07 | 2018-09-26 | 株式会社アマダホールディングス | Back gauge device, positioning method of back gauge device, and press brake |
-
2017
- 2017-02-22 US US15/439,542 patent/US20170252794A1/en not_active Abandoned
- 2017-02-22 EP EP17157321.5A patent/EP3208008B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
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None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3778048A1 (en) | 2019-08-15 | 2021-02-17 | Thalmann Maschinenbau AG | Processing machine for flat material parts with a laying unit and method therefor |
Also Published As
Publication number | Publication date |
---|---|
US20170252794A1 (en) | 2017-09-07 |
EP3208008A1 (en) | 2017-08-23 |
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