EP1857239B1 - Machining centre for machining workpieces made of wood or the like. - Google Patents

Machining centre for machining workpieces made of wood or the like. Download PDF

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Publication number
EP1857239B1
EP1857239B1 EP20070108275 EP07108275A EP1857239B1 EP 1857239 B1 EP1857239 B1 EP 1857239B1 EP 20070108275 EP20070108275 EP 20070108275 EP 07108275 A EP07108275 A EP 07108275A EP 1857239 B1 EP1857239 B1 EP 1857239B1
Authority
EP
European Patent Office
Prior art keywords
along
machining
workpiece
vertical axis
guide
Prior art date
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Active
Application number
EP20070108275
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German (de)
English (en)
French (fr)
Other versions
EP1857239A2 (en
EP1857239A3 (en
Inventor
Alessandro Neri
Andrea Cucchi
Massimiliano Piccioli
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.)
SCM Group SpA
Original Assignee
SCM Group SpA
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Filing date
Publication date
Application filed by SCM Group SpA filed Critical SCM Group SpA
Publication of EP1857239A2 publication Critical patent/EP1857239A2/en
Publication of EP1857239A3 publication Critical patent/EP1857239A3/en
Application granted granted Critical
Publication of EP1857239B1 publication Critical patent/EP1857239B1/en
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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
    • 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
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/02—Machines with table
    • B27C5/06—Arrangements for clamping or feeding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes

Definitions

  • the present invention relates to a machining centre for machining workpieces made of wood or the like as per the preamble of claim 1.
  • a machining centre is disclosed by DE 4442896 .
  • the machining centre which is the subject matter of the present invention is used for stock removal machining processes (vertical and horizontal boring, routing and cutting) on wooden workpieces which will be used to form parts of furniture units (for example kitchen cabinets).
  • the workpiece to be machined and the machining units are able to move relative to one another.
  • tables are used (suitably shaped with holes and slots through which the tools may pass) which are preferably supported directly by the machining heads and so can move with them at least along the transversal machining axis Y.
  • these locating tables must be height-adjustable along the axis Z, irrespective of the movement of the machining heads, to prevent collisions with any tools during machining and, above all must be retracted (that is to say, moved away from the workpiece) if they approach the area of the workpiece where the movement gripper is present.
  • the tables are supported by additional independent guides present on the machining head and controlled by linear actuators designed to allow them to move along the vertical axis Z.
  • Said system for adjustment of the tables has several disadvantages due to its complex construction and operation.
  • the present invention therefore has for an aim to overcome the above-mentioned disadvantages with a machining centre for machining workpieces made of wood or the like structured in such a way that it has an extremely simple architecture for the machining head and locating table movement and adjustment systems in terms of the adjusting elements and such that it maintains a high level of productivity for the machining centre in the unit of time.
  • the present invention achieves this aim with a machining centre, for machining workpieces made of wood comprising at least the technical features described in claim 1 herein.
  • the numeral 2 denotes as a whole the machining centre according to the invention, used for machining workpieces 1 made of wood or the like which will be used to form parts of furniture units.
  • this machining centre 2 performs a plurality of machining operations, for example boring, routing, cutting to size, etc., using the combination of the movement (usually intermittent) of the workpiece 1 along a first axis X with the movements of the one or more machining heads present along a second axis Y transversal to the first axis X and a third, vertical axis Z.
  • this machining centre 2 basically comprises:
  • the worktable 3 is illustrated with a dashed line, since it is of the widely known type, whilst only one holding gripper 4 can be seen, although obviously along the side of the worktable 3 there may be two or more clamps 4 sliding, in both directions, in X along the guide 5.
  • the means 9 for adjusting the machining head 7 are not described, being of the widely known type (for example suitably motor-driven male and female screw couplings between the frame 6 and the machining head 7).
  • the tables 10 are also not illustrated in detail (for example in terms of internal form) since their use for the machining work to be done is well known.
  • the machining centre 2 comprises:
  • the initial adjustment and any table 10 retracted - reactivation positions necessary are achieved using the first guide 11, releasing the table 10 from the machining head 7 at least for the third, vertical axis Z.
  • the first machining head 7 and the respective table 10 are positioned and movable above the line defined by the worktable 3.
  • part of the adjusting means 12 are positioned on the first supporting guide 11, acting between the frame 6 and the first guide 11, and designed at least to position the table 10 above a height, relative to the worktable 3 line, which depends on the thickness of the workpiece 1 to be machined and irrespective of the height at which the machining head 7 may position itself.
  • Another part of the adjusting means 12 consists of a cam profile 16, present along at least one lateral zone of the first guide 11 and acting on the table 10 in such a way as to allow it a retracted position, that is to say a position in which the table 10 is moved away from the workpiece 1 along the third, vertical axis Z (see arrow F10), when it moves, in one direction, along the second, transversal axis Y, and close to the workpiece 1 holding gripper 4 engagement zone. Said configuration is described in detail below. Obviously, movement in the opposite direction along the axis Y allows the table 10 to be returned to an active operating position.
  • Figures 1 to 3 also illustrate a machining centre 2 solution in which there is a second machining head 13 positioned below the worktable 3 line.
  • This second machining head 13 also moves slidably, similarly to the previous one, along the second, transversal axis Y and along the third, vertical axis Z.
  • At least one lower holding and locating table 14 inserted between the second machining head 13 and the workpiece 1, movable with the second machining head 13 along the second, transversal axis Y, and designed to locate the workpiece 1 along the third, vertical axis Z.
  • the lower table 14 is also slidably associated with a second supporting guide 15, positioned on the bottom of the frame 6 and extending parallel with the second, transversal axis Y.
  • the first and second guides 11 and 15 are equipped with the above-mentioned part of the adjusting means 12 consisting of the cam profile 16 present in the lateral zone of the guides 11 and 15.
  • the cam profile 16 acts simultaneously on the upper and lower tables 10 and 14 to allow them a retracted position, that is to say a position in which the tables 10 and 14 are moved away from the workpiece 1 along the third, vertical axis Z, after their movement along the second, transversal axis Y, and close to the workpiece 1 holding gripper 4 engagement zone.
  • the detail of the table 10 and 14 retraction path and the profile of the cams 16 is clearly visible in Figure 6 .
  • each table, upper and lower 10 and 14 is supported by a plurality of vertical guides 17 associated, at the other end, with a rigid supporting structure 18 (also forming a frame for the machining heads 7 and 13), equipped with at least one pair of wheels 19, positioned on the respective first and second guides, upper or lower 11 and 15.
  • Each guide 11 and 15 in turn has a sliding track 11p and 15p along the second, transversal axis Y inserted between the pair of wheels 19 and having the cam profile 16.
  • the cam profile of the first, upper guide 11 is at least formed by a track 11p connecting curvature or ramp 16 designed to allow the upper table 10 to be lifted, together with the supporting structure 18, relative to the workpiece 1 and along the third, vertical axis Z (see arrow F10).
  • the cam profile of the second, lower guide 15 is at least formed by a track 15p connecting curvature or ramp 16 designed to allow the lower table 14 to be lowered, together with its supporting structure 18, relative to the workpiece 1 and along the third, vertical axis Z (see arrow F14).
  • the adjusting means 12 may comprise, as an example of the construction, a pair of threaded bushings 12b, associated with a cross member 20 supporting the first, upper guide 11, which can be connected by screwing to respective lead nuts 21 with a vertical axis and rotatably associated with the frame 6.
  • a motor-driven unit 22 is kinematically connected to the lead nuts 21 (for example by a chain 22c meshing with respective gear wheels 22r keyed on the lead nuts 21), to allow synchronised lifting or lowering of the cross member 20 along the third, vertical axis Z (partly thanks to the bilateral presence of a pair of guides 20g on which the cross member 20 slides).
  • the position is decided and controlled, for example, with the aid of a sensor 22s placed on the worktable 3 and upstream of the frame 6, relative to the workpiece 1 direction of feed X, so as to allow table 10 adjustment in advance (see Figure 1 with respective block).
  • the lower table 14 does not usually need a height setting adjustment before workpiece 1 arrival, since the lower table 14 is already in line, that is to say “aligned” with the worktable, but Figure 5 shows, with a dashed line, similar means 12 for adjusting the setting of the lower table 14 acting on the second, lower guide 15 and acting between the frame 6 and the second guide 15 so that, if necessary, the lower table 14 can be positioned at a predetermined height along the third, vertical axis Z.
  • each of the tables, upper and lower 10 and 14 may be divided into a plurality of sub-tables (in this example there are three, labelled 10, 10a, 10b; 14, 14a, 14b) coplanar and each having respective vertical guides 17 which, at the other end, are associated with the rigid supporting structure 18.
  • the guides 17 have a pair of wheels 19 for each sub-table 10, 10a, 10b; 14, 14a, 14b to run on and positioned so that they run on the respective first and second guides, upper and lower 11 and 15.
  • the vertical guides 17 supporting the tables 10 and 14 also form independent sliding guides for the respective machining head 7 and 13 along the third, vertical axis Z.
  • a machining centre structured in this way therefore fully achieves the preset aims thanks to the separation of adjustment of the tables from the machining heads along the vertical axis Z.
  • Said independent adjustment makes initial setting of the position of the tables easier and faster and, thanks to the presence of cam profiles, the table movements are instant, during shared movement of the machining head and tables along the second, transversal axis Y, retracting them from and moving them back towards the workpiece, without the need to programme control units present on the machining centre.
  • Said device therefore allows the table transition steps during machining to be significantly streamlined, in particular the most delicate ones, close to the side affected by the workpiece movement grippers.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Machine Tool Units (AREA)
EP20070108275 2006-05-16 2007-05-15 Machining centre for machining workpieces made of wood or the like. Active EP1857239B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20060366 ITBO20060366A1 (it) 2006-05-16 2006-05-16 Centro di lavoro per la lavorazione di pezzi in legno od assimilabili.

Publications (3)

Publication Number Publication Date
EP1857239A2 EP1857239A2 (en) 2007-11-21
EP1857239A3 EP1857239A3 (en) 2008-09-03
EP1857239B1 true EP1857239B1 (en) 2009-10-28

Family

ID=38331738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070108275 Active EP1857239B1 (en) 2006-05-16 2007-05-15 Machining centre for machining workpieces made of wood or the like.

Country Status (4)

Country Link
EP (1) EP1857239B1 (es)
DE (1) DE602007002943D1 (es)
ES (1) ES2333371T3 (es)
IT (1) ITBO20060366A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010058431A1 (en) * 2008-11-18 2010-05-27 Salvadori Complementi Di Arredo Srl, Structure for resting furniture
CN104526828B (zh) * 2014-12-22 2017-01-18 佛山维尚家具制造有限公司 一种用于定制家具的板材自动加工设备
ITBO20150200A1 (it) * 2015-04-20 2016-10-20 Biesse Spa Metodo e macchina per la foratura di pannelli di legno o simili
CN106166782B (zh) * 2016-07-11 2018-03-23 徐州工程学院 一种三轴式木地板切割装置及其关键部件的制作方法
CN106182188B (zh) * 2016-08-30 2018-12-04 美克国际家私（天津）制造有限公司 一种五轴联动曲线板材加工中心
CN106738092B (zh) * 2016-12-21 2018-12-07 宁波市镇海捷登应用技术研究所 一种高效仿形机械及用该机械制作曲线构件的方法
IT201700021203A1 (it) * 2017-02-24 2018-08-24 G P Consulting Di Giuseppe Pritelli & C S A S Procedimento automatico di lavoro per pannelli lignei e simili e centro di lavoro di relativa attuazione specie per l'industria del mobile da arredamento
CN107160492B (zh) * 2017-05-19 2019-03-19 四川省青城机械有限公司 一种立轴对剖锯床用上压板压料机构
CN107363571A (zh) * 2017-07-06 2017-11-21 南通德鑫数控机床有限公司 一种凸轮轴数控仿形铣床中心架机构
CN108908517A (zh) * 2018-06-30 2018-11-30 广东知识城运营服务有限公司 一种菜板制作设备
CN110405858A (zh) * 2019-08-27 2019-11-05 徐州绿源智能科技有限公司 一种木工雕刻机收益模型计算及设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726382C3 (de) * 1977-06-10 1980-09-04 Paul 7843 Heitersheim Wassmer Vorrichtung zum Bohren und Ausschneiden oder Fräsen eines Bauteiles aus einem plattenförmigen Werkstück aus Holz o.dgl
US4382728A (en) * 1979-10-25 1983-05-10 The Boeing Company Workpiece retaining pressure-foot assembly for orthogonally movable machine tool
DE8436065U1 (de) * 1984-12-08 1986-06-19 Jenkner, Erwin, 7261 Gechingen Maschine zur Schnittbearbeitung sowie zum flach- und/oder stirnseitigen Bohren plattenförmiger Werkstücke
ATE100011T1 (de) * 1991-04-18 1994-01-15 Gfm Fertigungstechnik Werkzeugmaschine zur bearbeitung plattenfoermiger werkstuecke.
DE4442896C1 (de) * 1994-12-02 1996-07-11 Keusch Siegfried Vorrichtung zum automatischen Bohren, Nuten und Fräsen von plattenförmigen Werkstücken aus Holz oder ähnlichen Werkstoffen
DE19752685A1 (de) * 1997-11-28 1999-07-01 Ima Maschinenfabriken Klessmann Gmbh Maschine zum Bearbeiten von Fensterrahmen-Holmen
DE10317486B4 (de) * 2003-04-16 2006-02-16 Wassmer Spezialmaschinen Gmbh Vorrichtung mit einem Bohraggregat und einem Fräsaggregat
ITBO20050286A1 (it) * 2005-04-27 2006-10-28 Scm Group Spa Macchina,metodo e dispositivo a pinza per un panello

Also Published As

Publication number Publication date
EP1857239A2 (en) 2007-11-21
EP1857239A3 (en) 2008-09-03
ES2333371T3 (es) 2010-02-19
DE602007002943D1 (de) 2009-12-10
ITBO20060366A1 (it) 2007-11-17

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