EP1600269A1 - Bearbeitungszentrum mit schmaler Portalstruktur - Google Patents

Bearbeitungszentrum mit schmaler Portalstruktur Download PDF

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Publication number
EP1600269A1
EP1600269A1 EP05425366A EP05425366A EP1600269A1 EP 1600269 A1 EP1600269 A1 EP 1600269A1 EP 05425366 A EP05425366 A EP 05425366A EP 05425366 A EP05425366 A EP 05425366A EP 1600269 A1 EP1600269 A1 EP 1600269A1
Authority
EP
European Patent Office
Prior art keywords
machining center
rest
movement
rests
crosswise
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.)
Withdrawn
Application number
EP05425366A
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English (en)
French (fr)
Inventor
Alberto Ruggieri
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.)
Bacci Paolino Di Bacci Di Agostino
Original Assignee
Bacci Paolino Di Bacci Di Agostino
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bacci Paolino Di Bacci Di Agostino filed Critical Bacci Paolino Di Bacci Di Agostino
Publication of EP1600269A1 publication Critical patent/EP1600269A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C9/00—Multi-purpose machines; Universal machines; Equipment therefor
    • B27C9/04—Multi-purpose machines; Universal machines; Equipment therefor with a plurality of working spindles

Definitions

  • the present invention pertains to a machining center, or machine tool, typically but not exclusively for the machining of pieces of wood.
  • the invention relates to a machining center with a gantry structure and a machining head sliding along the gantry's crossbar above a base, on which there are two carriages or work piece-supporting rests that slide, each controlled in its sliding movement along a corresponding numerically-controlled working axis lying at right angles to the axis of movement of the machine head.
  • Machine tools or machining centers of this type are generally of considerable size, particularly in terms of their width. This is due to the fact that the span of the gantry structure must be sufficient to allow for the passage of the two work piece-supporting rests underneath it, while leaving sufficient space for the machining of the pieces even when the tools on the machining head come to be alongside the rests. As a result, the global width of the machine is greater than the sum of the maximum crosswise dimension of the work pieces that can be placed on the two rests plus the width of the upright for the gantry structure.
  • Machines or machining centers of this type frequently need to be transported over considerable distances, from the manufacturer's premises to the user company, by loading them in containers.
  • Containers come in standard sizes and normal machining centers cannot fit inside them unless they are dismantled. This involves assembling the machining center for final testing, then dismantling it, loading the component parts into the container, delivering the container to the destination of the machine and then reassembling the whole machine.
  • the object of the present invention is to realize a gantry-type machine tool or machining center of the aforementioned kind of limited crosswise dimensions, but nonetheless capable of machining pieces of considerable size.
  • the invention concerns a machining center, in particular for machining wooden components for use in furniture or the like, comprising: a base with a pair of guides for a corresponding pair of rests for supporting the work pieces, said rests being movable along a respective first translation axis parallel to said guides; a gantry structure with a crossbar running above said base and crosswise to said guides, whereon a machining head moves along a further translation axis; characterized in that at least one of the rests is also capable of a transverse movement with respect to its translation axis.
  • the rest can be moved from a working position in which it lies close to the centerline of the base and passed under the gantry structure carrying the machining head to a laterally-displaced idle position.
  • the gantry can be made with a span (i.e. the free space between the uprights) that can be narrower, for equivalent crosswise dimensions of the work pieces, than would be necessary in conventional machining centers.
  • both the rests can be enabled to move crosswise with respect to said guides.
  • the crosswise movement of the work piece-supporting rest(s) (or tables) with respect to their first translation axis is parallel to the gantry crossbar and orthogonal to the translation axis of the rests.
  • the crosswise movement of the rest(s) may be a simple movement controlled by a cylinder-piston actuator, or other actuator not numerically-controlled, but rather capable of making the corresponding rest occupy two definite positions, e.g. by means of abutments and/or limit switches. Said positions will be one working position and one idle position, respectively closer and further away from the centerline of the base. It may also be, however, that this movement is also numerically-controlled.
  • the machining center in this example of an embodiment the machining center, generically indicated by the numeral 1, comprises a base 3 and a gantry structure including a pair of uprights 5 and a crossbar 7.
  • the two rests are capable of movement along a numerically-controlled horizontal traversing axis, indicated by YA and YB respectively for the two rests. Since the carriages work in a swinging cycle, one normally comes to be at a standstill in the loading and unloading position (the position of rest 11B in Fig.3), while the other moves along its respective axis Y (axis YA for rest 11A in Fig.3) controlled by a microprocessor or other programmable control unit.
  • each of the two rests 11A, 11B has a carriage 13A, 13B sliding directly on the guides 9A, 9B.
  • a respective saddle 15A, 15B is provided, which slides on the carriage 13A, 13B in a direction FA, FB.
  • the movement along FA and FB may be a simple movement, i.e. not controlled by a numerical control axis, but a movement obtained between two end positions induced by a cylinder-piston actuator, for instance, or by an electric motor and limit switches, or other similar arrangement. This does not rule out the possibility of this movement also being numerically controlled, however, although this would increase the cost of the machining center.
  • Each of the two saddles 15A, 15B can occupy a first end position coming closest to the centerline L of the base 1, and a position furthest away from said centerline.
  • Figures 1 to 3 show the saddle 15A in the position closest to the centerline L, while the saddle 15B is in the position furthest away from said line. The purpose of this movement will be explained in more detail below.
  • each saddle 15A, 15B carries a pair of uprights or cursors 17A, 17B, on each of which a beams 19A, 19B is fixed.
  • the beams 19A, 19A and 19B, 19B on each rest 11A, 11B provide a surface for supporting and fixing the work pieces.
  • the size of this surface can be adjusted by changing the distance between the uprights or cursors 17A, 17A and 17B, 17B, to adapt to the shape of the pieces being machined as the case may be.
  • Fig. 1 also shows an example of pieces P locked onto the members 19A and 19B of the two rests.
  • a machining head is slidingly installed on a guide 21, on the gantry crossbar. Said machining head is capable of movement along a numerically-controlled axis X, along the guide 21, at right angles to the axes YA, YB.
  • the head 23 includes a saddle 25, with a vertical guide 27, along which there slides a supporting element 29 with a set of spindles 31 (in the example, four spindles fitted with a corresponding number of tools).
  • the movement along the guide 27 is governed by a numerically-controlled axis Z.
  • the machining head 23 may be rotational or birotational, i.e. capable of a rotational or oscillating movement of the set of spindles 31 around one or two numerically-controlled rotational axes. In the example shown a single numerically-controlled axis of oscillation is provided, indicated by the letter B.
  • the dimensions of the rests 11A, 11B and of the pieces P with respect to the span A of the gantry structure 5, 7 is such that the rest 11A can be brought underneath the gantry structure, so that the pieces P fixed thereon can be machined, by passing from the loading and unloading position of Fig.2 to the working position of Fig.3, after the saddle 15A has been displaced towards the centerline L of the base 1.
  • the saddle 15B of the rest 11B is transferred laterally into a position such that the rest would not be able to pass under the gantry because of its limited span A.
  • the rest 11A is displaced laterally to an outer position (i.e. away from the centerline L), while the rest 11 B occupies a position close to the centerline of the base 1, and can shift towards the working position by passing or coming into position underneath the gantry 5, 7 to enable the head 23 to work on the pieces P.
  • the saddle 15B can be displaced along FB towards the centerline L of the base 1, so that the rest can advance along the axis YB until it reaches the workspace for the machining head 23, underneath the crossbar 7.
EP05425366A 2004-05-25 2005-05-25 Bearbeitungszentrum mit schmaler Portalstruktur Withdrawn EP1600269A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI20040119 2004-05-25
ITFI20040119 ITFI20040119A1 (it) 2004-05-25 2004-05-25 Centro di lavoro con struttura a portale di larghezza ridotta

Publications (1)

Publication Number Publication Date
EP1600269A1 true EP1600269A1 (de) 2005-11-30

Family

ID=34943208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05425366A Withdrawn EP1600269A1 (de) 2004-05-25 2005-05-25 Bearbeitungszentrum mit schmaler Portalstruktur

Country Status (2)

Country Link
EP (1) EP1600269A1 (de)
IT (1) ITFI20040119A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008004263A2 (en) * 2006-07-05 2008-01-10 Paolino Bacci S.R.L. Machining centre with positioning system of the workpiece clamping members
DE102007044288A1 (de) * 2007-09-07 2009-03-12 Ex-Cell-O Gmbh Werkzeugmaschine mit einem ersten und einem zweiten Werkstückträger und Werkstückbearbeitungsverfahren
US7721410B2 (en) * 2003-06-04 2010-05-25 Gudel Group Ag Machine tool comprising a clamping device on both sides
ITMI20100454A1 (it) * 2010-03-19 2011-09-20 Pade S A S Di De Moliner Vinicio Macchina utensile per la lavorazione di pezzi di forma allungata
DE202011002384U1 (de) * 2011-02-05 2012-05-07 Hans Hundegger Holzbearbeitungsanlage in Portalbauweise
US8800124B1 (en) * 2009-11-23 2014-08-12 The Boeing Company Adjustable fixture for a multi-spindle machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535973A1 (de) * 1975-08-12 1977-02-17 Siemens Ag Mehrspindelbohrautomat, insbesondere zum bohren von leiterplatten
US5054175A (en) * 1989-06-23 1991-10-08 Toshiba Kakai Kabushiki Kaisha Machine tool having automatic changeable tables
EP0465435A1 (de) * 1990-06-25 1992-01-08 ALBERTI VITTORIO S.p.A. Mehrspindel-Werkzeugmaschine zur spanabhebenden Bearbeitung von Platten
DE19756338A1 (de) * 1996-12-31 1998-07-02 Biesse Spa Werkzeugmaschine für die Bearbeitung von Platten
EP1413409A2 (de) * 2002-10-23 2004-04-28 BIESSE S.p.A. Maschine für die Bearbeitung von Holzplatten oder dergleichen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535973A1 (de) * 1975-08-12 1977-02-17 Siemens Ag Mehrspindelbohrautomat, insbesondere zum bohren von leiterplatten
US5054175A (en) * 1989-06-23 1991-10-08 Toshiba Kakai Kabushiki Kaisha Machine tool having automatic changeable tables
EP0465435A1 (de) * 1990-06-25 1992-01-08 ALBERTI VITTORIO S.p.A. Mehrspindel-Werkzeugmaschine zur spanabhebenden Bearbeitung von Platten
DE19756338A1 (de) * 1996-12-31 1998-07-02 Biesse Spa Werkzeugmaschine für die Bearbeitung von Platten
EP1413409A2 (de) * 2002-10-23 2004-04-28 BIESSE S.p.A. Maschine für die Bearbeitung von Holzplatten oder dergleichen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7721410B2 (en) * 2003-06-04 2010-05-25 Gudel Group Ag Machine tool comprising a clamping device on both sides
WO2008004263A2 (en) * 2006-07-05 2008-01-10 Paolino Bacci S.R.L. Machining centre with positioning system of the workpiece clamping members
WO2008004263A3 (en) * 2006-07-05 2008-02-21 Paolino Bacci Srl Machining centre with positioning system of the workpiece clamping members
DE102007044288A1 (de) * 2007-09-07 2009-03-12 Ex-Cell-O Gmbh Werkzeugmaschine mit einem ersten und einem zweiten Werkstückträger und Werkstückbearbeitungsverfahren
DE102007044288B4 (de) * 2007-09-07 2017-06-22 Mag Ias Gmbh Werkzeugmaschine mit einem ersten und einem zweiten Werkstückträger und Werkstückbearbeitungsverfahren
US8800124B1 (en) * 2009-11-23 2014-08-12 The Boeing Company Adjustable fixture for a multi-spindle machine
US9925593B2 (en) 2009-11-23 2018-03-27 The Boeing Company Adjustable fixture for a multi-spindle machine
ITMI20100454A1 (it) * 2010-03-19 2011-09-20 Pade S A S Di De Moliner Vinicio Macchina utensile per la lavorazione di pezzi di forma allungata
DE202011002384U1 (de) * 2011-02-05 2012-05-07 Hans Hundegger Holzbearbeitungsanlage in Portalbauweise

Also Published As

Publication number Publication date
ITFI20040119A1 (it) 2004-08-25

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