EP1923183A1 - Fräsmaschine zur Bearbeitung von Holzbalken - Google Patents

Fräsmaschine zur Bearbeitung von Holzbalken Download PDF

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Publication number
EP1923183A1
EP1923183A1 EP07118666A EP07118666A EP1923183A1 EP 1923183 A1 EP1923183 A1 EP 1923183A1 EP 07118666 A EP07118666 A EP 07118666A EP 07118666 A EP07118666 A EP 07118666A EP 1923183 A1 EP1923183 A1 EP 1923183A1
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EP
European Patent Office
Prior art keywords
milling
arm
along
translational motion
carriage
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Withdrawn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
EP07118666A
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English (en)
French (fr)
Inventor
Giovanni Sella
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.)
Essetre SpA
Original Assignee
Essetre SpA
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 Essetre SpA filed Critical Essetre SpA
Publication of EP1923183A1 publication Critical patent/EP1923183A1/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Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/02—Making tongues or grooves, of indefinite length
    • 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 milling machine for machining wood beams.
  • the invention can be used conveniently with wood beams used in the building sector to provide work such as abutment seats for walls, supports for structural elements, et cetera.
  • one of the most typical is constituted by machining on an intermediate beam portion which consists of two first symmetrical millings on two parallel faces of the beam, so as to provide first locators, and two second symmetrical millings provided on the two remaining faces substantially in the same axial position as the first millings, which constitute second locators; these second millings are deeper than the preceding ones ( Figure 5a included in the accompanying drawings shows this machining).
  • a machine for providing this kind of machining which is constituted by a line for moving the beam and by a station on which the beam is held and in which there are two distinct milling assemblies, a first assembly which works in a horizontal direction and a second assembly which works in a vertical direction.
  • Each assembly in practice is constituted by a C-shaped structure, which is directed toward the beam to be cut; two cutters are provided on the ends of the cantilever arms of the C-shape and therefore work in parallel (the distance between the arms that support the cutters can be adjusted as a function of the dimensions of the beam and of the milling depth).
  • the first assembly is made to perform a translational motion, transversely to the axis of the beam, from an inactive position which is spaced from said beam to a position for working thereon; the distance between the cutters is such as to allow simultaneous milling of the two horizontal faces.
  • the first assembly is made to perform a translational motion back into the inactive position.
  • the second assembly is made to perform a vertical translational motion from an inactive position below the beam to a position for working on the beam; in this case also, the distance between the cutters is such as to allow simultaneous milling of the two vertical faces.
  • the second assembly is again made to perform a translational motion into the inactive position and the beam is ready for any other machining operations on the region that has just been milled by way of other machining assemblies or heads.
  • each assembly performs two idle strokes for each milling operation (one for approaching the beam and one for moving away).
  • the aim of the present invention is to solve the problems noted in known types of milling machines for machining on wood beams.
  • an object of the present invention is to provide a milling machine for machining on wood beams which has a reduced space occupation with respect to known machines.
  • Another object of the present invention is to provide a milling machine for machining on wood beams which works faster than known machines.
  • Another object of the present invention is to provide a milling machine for machining on wood beams which has a smaller number of components than known machines.
  • Another object of the present invention is to provide a milling machine for machining on wood beams which is flexible in use.
  • a milling machine for machining on wood beams which comprises a guided movement line for a beam to be machined and a milling station which comprises two milling assemblies which are controlled by electronic means and are each adapted to mill mutually opposite faces of the same portion of beam, characterized in that said milling assemblies each comprise a single cutter which is associated with respective means for translational motion along two respective perpendicular directions which lie on a plane which is arranged transversely with respect to the direction of said movement line, said electronic means coordinating said translational motion means in order to allow simultaneously said cutters, arranged at the beginning of the milling sequence on corresponding contiguous faces of the beam, a first stroke for milling along a respective face, a second idle stroke along a face which is contiguous to the previously milled one, and a third stroke for milling along the face which is parallel to the previously milled one, said cutters being moved around the beam along a same direction of motion.
  • a milling machine for machining on wood beams is generally designated by the reference numeral 10.
  • the milling machine 10 comprises a guided movement line 11 for a beam 12 to be machined and a milling station 13 (the beam is not shown in Figure 2).
  • the guided movement line 11 is of the type with rollers and substantially comprises two aligned portions 14 and 15, which are spaced by the milling station 13.
  • the guided movement line 11 is provided with a side 16 for supporting the beam 12 and with shuttles 17 for moving the beam along the line 11, respectively two shuttles on the first portion 14 and two on the second portion 15.
  • the milling station 13 comprises two separate milling assemblies: a first assembly 18, which is adjacent to the second portion 15 of the movement line 11 at the leading end, and a second assembly 19, which is adjacent to the first portion 14 of said line at the trailing end; each of the milling assemblies 18 and 19 allows mainly to mill mutually opposite faces of the same portion of beam; said assemblies also allow to mill leading and trailing portions of the beams and to perform other types of machining, as explained in greater detail hereinafter.
  • the milling assemblies 18 and 19 are controlled by electronic means 20 (such as typical numeric control systems), which allow an automated movement thereof which is coordinated with the movement of the beam along the movement line 11.
  • electronic means 20 such as typical numeric control systems
  • the two milling assemblies 18 and 19 each comprise a single cutter, which is associated with respective means 21 for translational motion, described hereinafter, along two respective perpendicular directions which lie on a plane which is transverse to the direction of the movement line 11.
  • the first milling assembly 18 (shown in Figures 1 and 3) comprises a first arm 22, which is substantially parallel to the sliding plane formed by the movement line 11 and lies transversely to the direction of the movement line 11; in practice, the first arm 22 is perpendicular to the movement line 11 and therefore perpendicular to the beam 12.
  • first cutter 23 At the end of the first arm 22 there is a first cutter 23, whose axis of rotation is substantially horizontal (parallel to the direction of the line 11).
  • the translational motion means 21 associated with the first cutter 23 comprise first controlled sliding means 24 (shown schematically, for the sake of simplicity, by means of a double arrow) for the first arm 22 on a first carriage 25 in a direction which coincides substantially with the extension of the first arm 22.
  • the first arm 22 lies at right angles to the movement line 11 and parallel to the plane formed by said line (in practice a horizontal translational motion): the first controlled sliding means 24 therefore allow a movement in said direction for the arm and accordingly determine a milling direction of the first cutter 23.
  • the first controlled sliding means 24 are constituted for example by straight guides and actuators of the electromechanical type, such as for example ballscrew systems associated with precision guides or advancement systems of the rack-and-pinion type or other systems.
  • the first carriage 25 in turn is associated with first means 26 (also shown schematically, for the sake of simplicity, by means of a double arrow) for rectilinear motion along a first guide 27 which is rigidly coupled to the frame 28 of the machine in a direction which is substantially perpendicular to the sliding plane formed by the movement line 11 (in practice a vertical translational motion).
  • first means 26 also shown schematically, for the sake of simplicity, by means of a double arrow
  • the first rectilinear motion means 26 are constituted for example by straight guides and actuators of the electromechanical type, such as for example ballscrew systems associated with precision guides or advancement systems of the rack-and-pinion type or other systems.
  • the second milling assembly 19 (shown in Figures 1 and 4) comprises a second arm 29, which is substantially perpendicular to the first arm 22 and perpendicular to the sliding plane formed by the movement line 11 (in practice, a vertical arm).
  • a second cutter 30 which has a substantially horizontal axis.
  • the translational motion means 21 comprise second controlled sliding means 31 (also shown schematically, for the sake of simplicity, by means of a double arrow) for the second arm 29 on a second carriage 32 in a direction which is parallel to the direction of translational motion of the first carriage (in practice a vertical translational motion).
  • the second controlled sliding means 31 are constituted for example by straight guides and actuators of the electromechanical type, such as for example ballscrew systems which are associated with precision guides or advancement systems of the rack-and-pinion type or other systems.
  • the second carriage 32 in turn is associated with second means 33 (also shown schematically, for the sake of simplicity, by means of a double arrow) for rectilinear motion along a second guide 34, which is rigidly coupled to the frame of the machine along a direction which is parallel to the sliding direction of the first arm 22 (in practice, a horizontal translational motion which is perpendicular to the line 11 and to the beam 12).
  • second means 33 also shown schematically, for the sake of simplicity, by means of a double arrow
  • the second rectilinear motion means 33 are constituted for example by straight guides and actuators of the electromechanical type, such as for example ballscrew systems associated with precision guides or advancement systems of the rack-and-pinion type or other systems.
  • the electronic means 20 allow to coordinate the translational motion means 21 in order to allow the cutters 23 and 30, arranged at the beginning of the milling sequence on corresponding contiguous faces of the beam 12, to perform simultaneously a first milling stroke along a respective face, a second idle stroke along a face which is contiguous to the previously milled one, and a third milling stroke along the face which is parallel to the previously milled one (the cutters 23 and 30 are moved around the beam 12 along a same direction of motion).
  • the first cutter 23 is arranged laterally to a first lateral face 12a of the beam 12; the projection of the first cutter 23 intersects the lateral (vertical) face 12a by an extent which is substantially equal to the milling depth to be provided on the upper (horizontal) face 12b of the beam.
  • the second cutter 30 is arranged above the upper face 12b of the beam 12; the projection of the second cutter 30 intersects the upper face 12b by an extent which is substantially equal to the milling depth to be provided on the second (vertical) lateral face 12c of the beam.
  • the second arm 29 is drawn downward, toward the carriage 32, moving the second cutter 30 so that it interferes with the beam 12 at the second lateral face 12c, providing a first vertical milling pass; the second cutter is moved to a position such that its projection is completely external to the second lateral face 12c of the beam 12.
  • the first arm 22 is subjected to a horizontal translational movement in the direction of the first carriage 25, moving the first cutter 23 so that it interferes with the beam 12 at the upper face 12b, providing a first horizontal milling pass; the first cutter 23 is subjected to a translational motion to such a position that its projection is completely external to the upper face 12b of the beam 12.
  • Figures 5a and 5b illustrate the initial and final positions of these first milling passes (these positions are also shown in Figures 3 and 4: the initial ones are shown in broken lines).
  • the second arm 29 is subjected to a horizontal translational motion on the lower face 12d, causing the second cutter 30 to perform an idle stroke, without milling, until the projection of the cutter 30 intersects the lower face 12d by an extent which is substantially equal to the milling depth to be provided on the first lateral face 12a of the beam; this arrangement is shown in Figure 5c; in this step, the second carriage in practice passes from one side of the beam 12 to the other.
  • the first arm 22 is subjected to a vertical translational motion on the second lateral face 12c, causing an idle stroke of the first cutter 23, without milling, until the projection of the first cutter 23 intersects the second lateral face 12c by an extent which is substantially equal to the milling depth to be provided on the lower face 12d of the beam; this arrangement is shown in Figure 5c; in this step, the first carriage in practice passes from a position above the beam 12 to a position below it.
  • the second arm 29 is subjected to an upward translational motion away from the second carriage 32, moving the second cutter 30 so that it interferes with the beam 12 at the first lateral face 12a, providing a second vertical milling pass; the second cutter is subjected to a translational motion to such a position that its projection is completely external to the first lateral face 12a of the beam 12 (this position is shown in Figure 5d).
  • the first arm 22 is subjected to a horizontal translational motion away from the first carriage 25, moving the first cutter 23 so that it interferes with the beam 12 at the lower face 12d, providing a second horizontal milling pass; the first cutter 23 is subjected to a translational motion to such a position that its projection is completely external to the lower face 12d of the beam 12 (this position is shown in Figure 5d).
  • the first and second cutters 23 and 30 provide respective horseshoe-shaped paths which surround the beam 12 and are rotated by 90° with respect to each other and in which the parallel portions of each path are matched by steps for milling the beam; the initial points of the cutters are defined on a same side of the beam.
  • the movement of the cutters along said horseshoe-shaped paths is coordinated and substantially simultaneous.
  • the horseshoe-shaped path of the second cutter 30 is open upward.
  • two drills 35 are arranged on the first carriage 25 and their action is substantially parallel to the translational motion of the first arm 22 on the first carriage 24.
  • the drills 35 can perform a translational motion on the first carriage 24 parallel to the first arm 22, in practice allowing to provide holes which are perpendicular to the longitudinal axis of the beam 12, as shown in Figure 6b.
  • a third cutter 36 is arranged on the second carriage 32 and has an axis of rotation which is parallel to the direction of translational motion of the second arm 29; such cutter can perform a translational motion on the second carriage 32, parallel to the second arm 29, so as to be able to provide horizontal milling passes on the side of the beam or, as shown in Figure 6c, on the head.
  • the present invention in fact provides a machine which has just two cutters for providing the machinings around the beam.
  • the particular structure of the milling assemblies allows to keep the cutters very close to the beam, allowing very short translational motion times thereof, to the full benefit of production times.
  • the particular structure of the milling assemblies allows to use drills and additional cutters to provide other typical work on the beam.
  • the materials employed may be any according to requirements and to the state of the art.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Laser Beam Processing (AREA)
  • Shovels (AREA)
EP07118666A 2006-11-15 2007-10-17 Fräsmaschine zur Bearbeitung von Holzbalken Withdrawn EP1923183A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPD20060426 ITPD20060426A1 (it) 2006-11-15 2006-11-15 Macchina di fresatura per lavorazioni su travi lignee

Publications (1)

Publication Number Publication Date
EP1923183A1 true EP1923183A1 (de) 2008-05-21

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Family Applications (1)

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EP07118666A Withdrawn EP1923183A1 (de) 2006-11-15 2007-10-17 Fräsmaschine zur Bearbeitung von Holzbalken

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EP (1) EP1923183A1 (de)
IT (1) ITPD20060426A1 (de)
RU (1) RU2447988C2 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110010A1 (it) * 2011-01-18 2012-07-19 Bre Ma Brenna Macchine S R L Macchina per la lavorazione di pannelli di legno o simili
CN102794797A (zh) * 2012-08-01 2012-11-28 杜锦祥 木材铣榫机
EP2353820A3 (de) * 2010-02-10 2013-11-13 Hans Hundegger Holzbearbeitungsanlage
ITPD20120181A1 (it) * 2012-06-06 2013-12-07 Essetre Holding Spa Centro di lavoro perfezionato per la lavorazione di travi, particolarmente per la lavorazione di travi in legno e simili
WO2019182046A1 (ja) * 2018-03-22 2019-09-26 国立大学法人千葉大学 木材加工システム
FR3093943A1 (fr) 2019-03-19 2020-09-25 Sarl Ceica Dispositif d’usinage de poutres en bois ou similaires
WO2022171600A1 (de) * 2021-02-09 2022-08-18 Homag Gmbh Verfahren zum bearbeiten plattenförmiger werkstücke sowie bearbeitungseinrichtung
EP4331794A1 (de) * 2022-09-01 2024-03-06 Hans Hundegger Beteiligungs GmbH & Co. KG Plattenbearbeitungsanlage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2761929C2 (ru) * 2017-07-21 2021-12-14 Игорь Павлович Почепко Станок для обработки бревна

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808689A2 (de) * 1996-05-21 1997-11-26 ALBERTI VITTORIO S.p.A. Vorrichtung für den schrittweisen Vorschub von Platten
DE19819383A1 (de) * 1997-04-30 1998-11-05 Biesse Spa Plattenbearbeitungsmaschine
EP1712337A1 (de) 2005-04-15 2006-10-18 Balestrini Renzo S.p.A. Bearbeitungszentrum mit zwei Arbeitseinheiten mit Mitteln zur Handhabung des Werkstücks

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU593773A1 (ru) * 1976-04-05 1981-03-23 Ростовский-На-Дону Научно-Исследователь-Ский Институт Технологии Машиностроения Профилегибочный стан
US4068551A (en) * 1976-12-27 1978-01-17 Kreitz Lloyd D Extension table for power saws
RU13881U1 (ru) * 2000-02-14 2000-06-10 Тюлькин Владимир Николаевич Универсальный деревообрабатывающий станок
RU25446U1 (ru) * 2001-12-26 2002-10-10 Общество с ограниченной ответственностью "Компания Кироввнешторг" Оцилиндровочно-фрезерно-пильный деревообрабатывающий станок

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808689A2 (de) * 1996-05-21 1997-11-26 ALBERTI VITTORIO S.p.A. Vorrichtung für den schrittweisen Vorschub von Platten
DE19819383A1 (de) * 1997-04-30 1998-11-05 Biesse Spa Plattenbearbeitungsmaschine
EP1712337A1 (de) 2005-04-15 2006-10-18 Balestrini Renzo S.p.A. Bearbeitungszentrum mit zwei Arbeitseinheiten mit Mitteln zur Handhabung des Werkstücks

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2894018A1 (de) * 2010-02-10 2015-07-15 Hans Hundegger Holzbearbeitungsanlage
EP2353820A3 (de) * 2010-02-10 2013-11-13 Hans Hundegger Holzbearbeitungsanlage
ITBO20110010A1 (it) * 2011-01-18 2012-07-19 Bre Ma Brenna Macchine S R L Macchina per la lavorazione di pannelli di legno o simili
ITPD20120181A1 (it) * 2012-06-06 2013-12-07 Essetre Holding Spa Centro di lavoro perfezionato per la lavorazione di travi, particolarmente per la lavorazione di travi in legno e simili
EP2671697A1 (de) * 2012-06-06 2013-12-11 Essetre Holding SpA Bearbeitungszentrum zur Bearbeitung von Balken, insbesondere Holzbalken und dergleichen
CN102794797B (zh) * 2012-08-01 2015-09-23 福建杜氏木业有限公司 木材铣榫机
CN102794797A (zh) * 2012-08-01 2012-11-28 杜锦祥 木材铣榫机
WO2019182046A1 (ja) * 2018-03-22 2019-09-26 国立大学法人千葉大学 木材加工システム
JP2019166657A (ja) * 2018-03-22 2019-10-03 国立大学法人千葉大学 木材加工システム
US11648705B2 (en) 2018-03-22 2023-05-16 National University Corporation Chiba University Wood processing system
FR3093943A1 (fr) 2019-03-19 2020-09-25 Sarl Ceica Dispositif d’usinage de poutres en bois ou similaires
WO2022171600A1 (de) * 2021-02-09 2022-08-18 Homag Gmbh Verfahren zum bearbeiten plattenförmiger werkstücke sowie bearbeitungseinrichtung
EP4331794A1 (de) * 2022-09-01 2024-03-06 Hans Hundegger Beteiligungs GmbH & Co. KG Plattenbearbeitungsanlage

Also Published As

Publication number Publication date
RU2007142198A (ru) 2009-05-20
RU2447988C2 (ru) 2012-04-20
ITPD20060426A1 (it) 2008-05-16

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