EP1601493A1 - Machine-outil destinee a usiner des pieces de forme allongee - Google Patents

Machine-outil destinee a usiner des pieces de forme allongee

Info

Publication number
EP1601493A1
EP1601493A1 EP03715342A EP03715342A EP1601493A1 EP 1601493 A1 EP1601493 A1 EP 1601493A1 EP 03715342 A EP03715342 A EP 03715342A EP 03715342 A EP03715342 A EP 03715342A EP 1601493 A1 EP1601493 A1 EP 1601493A1
Authority
EP
European Patent Office
Prior art keywords
machine tool
worked
workpiece holder
piece
saddle
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Withdrawn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
EP03715342A
Other languages
German (de)
English (en)
Inventor
Marioalberto Biella
Vinicio De Moliner
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.)
Pade Sas Di De Moliner Vinicio & C
Original Assignee
Pade Sas Di De Moliner Vinicio & C
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 Pade Sas Di De Moliner Vinicio & C filed Critical Pade Sas Di De Moliner Vinicio & C
Publication of EP1601493A1 publication Critical patent/EP1601493A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/52—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/5406—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only a single rotating pair followed perpendicularly by a single rotating pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/60—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/62—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides
    • B23Q1/621—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair
    • B23Q1/626—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair followed perpendicularly by a single sliding pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B23Q7/047—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers the gripper supporting the workpiece during machining

Definitions

  • the subject of the present invention is a machine tool for working pieces having elongated form.
  • the present invention relates in particular to a machine tool for working pieces made of wood, plastics material or the like, preferably members for tables or chairs or items of furniture in general .
  • Machine tools which comprise a tool holder head for working the pieces, movement means for moving the tool holder head according to at least three controlled work axes and a workpiece holder assembly having an elongated form for supporting the pieces to be worked.
  • the workpiece holder assembly comprises at least one series of workpiece holder extensions movable between a position for gripping the piece to be worked and a position for releasing the worked piece.
  • the pieces to be worked are generally contained in a magazine and brought to the workpiece holder assembly by loading means.
  • Figure 1 shows an axonometric view of an embodiment of the machine tool for working pieces having elongated form according to the present invention
  • Figure 2 shows an axonometric view according to a different angle of a possible embodiment of the machine tool of Figure 1 in which some elements have been omitted in order to highlight others;
  • Figure 3 shows an axonometric view according to a different angle of a possible embodiment of the machine tool of Figure 1 in which some elements have been omitted in order to highlight others;
  • Figure 4 shows a diagrammatic sectional view of a possible embodiment of a machine tool according to the present invention.
  • Figure 1 shows an exemplary axonometric view of the machine tool 10 comprising a casing or containment enclosure 12 provided with a hatch 14 of transparent material for viewing the work on the piece.
  • the hatch 14 is hinged to the casing 12 so as to rotate between a closure position, illustrated in Figure 1, and an open position, illustrated in Figure 4.
  • the reference 20 has been used to indicate a base of the machine tool which, according to an advantageous embodiment, has a substantially triangular cross-section.
  • a vertex of the base 20 has been indicated by 22.
  • the angle subtended at the vertex 22 is around 80-100°, preferably 90°.
  • the base 20 comprises two brackets 24 for supporting a workpiece holder assembly 26.
  • the two brackets 24 are fixed onto an inclined side of the substantially triangular structure of the base 20.
  • an inclined wall of the base 20 extends beneath the workpiece holder assembly, acting as a support .
  • the base 20 is provided with conveying and collection surfaces 28 for conveying and collecting the work shavings below the workpiece holder assembly 26.
  • a first saddle 30 is arranged to translate with respect to the base 20 according to a first axis X.
  • the first saddle 30 comprises two portions 30a and 30b produced so as to straddle the vertex 22 of the base 20.
  • the first saddle 30 has in section two walls, corresponding respectively to the two portions 30a and 30b, disposed so as to be incident with each other and at least partially straddling the vertex 22 of the base. More specifically, the first saddle 30 has a section transverse to the axis X having an inverted "V"-shape which bears on the vertex 22 of the base 20.
  • the two walls 30a and 30b are disposed at 80-100° to each other, preferably at 90°. [0025] .
  • the translation axis X of the first saddle 30 with respect to the base 20 defines a first placement
  • the controlled drive is of the feedback control type.
  • the axis X or first work axis is disposed horizontally and represents a direction of predominant extension of the base 20.
  • movement means for the positioning translation and controlled working of the first saddle 30 there are provided movement means, not illustrated, of substantially conventional type such as ball bearing screws and controlled motors .
  • a second saddle 32 is mounted on the first saddle 30 and is arranged to translate with respect to one of the portions of the first saddle itself according to an axis Y.
  • the second saddle 32 is arranged to translate with respect to one of the portions of the first saddle 30 which are disposed straddling the vertex 22 of the base 20. As illustrated in Figure 4, the second saddle 32 translates on the portion 30b of the first saddle 30.
  • the translation axis Y is disposed so as to be inclined according to a horizontal plane P and defines a second positioning and/or work axis and is of the. controlled type connected, in operation, to a drive and control unit .
  • the controlled drive is preferably of the feedback control type .
  • the axis Y, or second work axis is inclined by an angle ⁇ with respect to a horizontal plane P, equal to around 60°.
  • the axis X and the axis Y define two work axes disposed orthogonally to each other.
  • movement means for the positioning translation and controlled working of the second saddle 32 there are provided movement means, not illustrated, of substantially conventional type, such as ball bearing screws and Controlled motors.
  • a third saddle 36 is arranged to translate with respect to the second saddle 32 according to an axis Z.
  • the axis Z is advantageously inclined with respect to a horizontal plane P by an angle ⁇ of between around 10° and 45°, preferably equal to around 30°.
  • the axis Z defines a third positioning and/or work axis and is of the controlled type connected, in operation, to a drive and control unit.
  • the controlled drive is of the feedback control type.
  • the axes X, Y, and Z are three positioning and/or work axes orthogonal to one another.
  • the second saddle 32 and the third saddle 36 are arranged to define a structure which in section is disposed substantially straddling the first saddle 30 and the vertex 22 of the base 20.
  • movement means for the positioning translation and controlled working of the third saddle 36 there are provided movement means, not illustrated, of substantially conventional type, such as ball bearing screws and controlled motors.
  • the third saddle 36 comprises a support arm 38 for a tool holder head 40.
  • the support arm 38 extends in a direction parallel to the axis Z.
  • the support arm 38 is advantageously mounted on the third saddle 36 so as to rotate about an axis of rotation C, preferably parallel to the axis Z.
  • the axis of rotation C defines a fourth positioning and/or work axis and is of the controlled type connected, in operation, to a drive and control unit.
  • the controlled drive is of the feedback control type.
  • the tool holder head 40 is mounted on the support arm 38 so as to rotate with respect thereto about an axis of rotation A.
  • the axis of rotation A is perpendicular to the. axis of ' rotation C of the support arm 38.
  • the axis of rotation A defines a fifth work axis, controlled preferably with feedback, of the machine tool 10.
  • the tool holder head 40 is a multispindle head, having a number of spindles preferably between two and four. [0045].
  • the saddles 30, 32, 36 and the support arm 38, with the corresponding drive means, not illustrated, represent an embodiment of movement means for the tool holder head 40 with respect to the base 20.
  • the workpiece holder assembly 26 has an elongated form for supporting the pieces to be worked. It further comprises at least one series of workpiece holder extensions 42 movable between a position for gripping the piece to be worked and a position for releasing the worked piece.
  • the workpiece holder extensions 42 define a system for locking or stirruping the pieces on the workpiece holder assembly.
  • the machine tool 10 and in particular the workpiece holder assembly 26 are structured in such a manner that the position for releasing the worked piece is different from the position for gripping the piece to be worked.
  • the workpiece holder assembly 26 rotates about an axis B.
  • the position for releasing the worked piece is advantageously disposed at a predetermined angle ⁇ from the position for gripping the piece to be worked, having a value of between 0 and 210°, referring for example to a horizontal plane, preferably between 0 and 180°, and still more preferably between 0 and 90°.
  • the workpiece holder assembly 26 comprises a shell, or elongate table, 44 mounted with suitable rotation and
  • the workpiece holder assembly 26 comprises at least one bearing or stirruping surface for the piece, for example defined by the end portion of the workpiece holder extensions 42.
  • the workpiece holder assembly 26 comprises an upper bearing or stirruping surface 46a and a lower bearing or stirruping surface 46b.
  • the upper bearing surface and the lower bearing surface are parallel to each other.
  • the workpiece holder assembly 26 comprises at least one series of workpiece holder extensions 42 movable in rotation about an axis B which defines a further work axis, controlled with feedback, of the machine tool 10.
  • Loading means 48 for loading the pieces to be worked are interposed, in operation, between a magazine 50 for the pieces to be worked and the workpiece holder assembly 26.
  • the loading means 48 comprise a gripper for picking up and transferring the pieces and a support guide therefor, not illustrated.
  • the loading means are arranged to transport the ' pieces to be worked along a straight loading path 52 parallel to the work axis Z disposed so as to be inclined with respect to the horizontal plane P.
  • the loading path extends from the magazine
  • the workpiece holder assembly 26 is thus disposed in a position for gripping the piece to be worked.
  • the loading path 52 in relation to the work axis Z, is therefore inclined with respect to the horizontal plane P by an angle ⁇ of between 10° and 45°, preferably equal to around 30°. [0058] ⁇ In the case where the support arm 38 is provided, the latter is preferably parallel to the loading path 52.
  • the workpiece holder assembly 26 is structured in such a manner that the loading path 52 is aligned with the workpiece bearing or stirruping surface of the series of workpiece holder extensions 42 which are located in a position for gripping the piece to be worked.
  • the workpiece holder assembly 26 is interposed between the tool holder head 40 and the loading means 48.
  • the tool holder head 40 is disposed substantially above the loading means 48.
  • removal means 54 for removing the worked piece along a removal path 56 are provided.
  • the removal path 56 is advantageously incident with the loading path 52.
  • the removal path is disposed in a horizontal plane .
  • the removal means 54 comprise a workpiece extraction hook which slides on a guide to pick up and remove the piece from the working zone, and are illustrated diagrammatically in Figure 4.
  • the base 20 supports anti-dust and anti-noise protection means defined by the casing or containment enclosure 12.
  • the pieces to be worked are arranged in the magazine 50, picked up by the loading means along the loading path 52 and directed to the workpiece holder assembly.
  • a first series of extensions 42 grips the piece to be worked.
  • the gripping position of the extensions 42 may correspond to a first working position of the piece or, advantageously, the workpiece holder assembly comprises at least two series of workpiece holder extensions disposed in such a manner as to differentiate the gripping position from the working position of the piece to be worked. In such a case the gripping position is aligned with the loading path and the working position is higher.
  • the passage from the gripping position to the working position is effected by rotating the workpiece holder assembly about the axis B.
  • the working of the piece is brought about by means of controlled movements of the tool holder head along the axes X, Y, Z and, if necessary, C, A. If necessary, the working of the piece is brought about by means of controlled movements of the workpiece holder assembly about the controlled axis B.
  • the machine tool according to the present invention has significant advantages in so far as its inclined structure, both in the workpiece loading portion and in the portion for movement of the tool holder head, permits optimum workability and visibility of the piece being worked, regardless of the face which has to be worked. This advantage is felt particularly in the field in question in which the pieces are often worked on three or more faces .
  • the aforesaid advantages are particularly increased by the pressing production rates and by the requirement for a high production quality in a field such as that of working elongate wooden pieces on a large scale and at high speed.
  • a further advantage of the machine tool according to the present invention is that of permitting rapid loading and unloading of the pieces directly by the workpiece holder assembly, permitting suitable alignment of the loading path or removal path with the corresponding system of stirruping on the workpiece holder assembly, his advantage is achieved in particular owing to the provision of a workpiece holder assembly having two or more stirruping surfaces and structured in such a manner as to be able to rotate in order to align itself with the axes of the tool chuck (in particular with the inclined work axis Z) or with the path followed by the piece by means of the loading means and with the removal path. In addition, if the path of the piece when approaching and when moving away is straight, the speeds may also be higher and the production rates more sustained.
  • the structure of the machine tool according to the present invention advantageously makes it possible to facilitate the creation of suitable chutes for discharge of the shavings and their fall from the guides of the loading means or from other devices of the machine itself. In addition, it advantageously allows a good fall of the shavings from the plane of the workpiece holder assembly which is inclined with respect to the horizontal plane.
  • a further advantage is provided by the fact that it is possible to create bases which are of compact and structurally rigid form.
  • the workpiece holder assembly is consequently naturally inclined with respect to the horizontal plane and therefore mutually aligned with the loading path of the pieces being loaded and with a work axis of the tool holder head.
  • a further advantage is provided by the rotation of the ' workpiece holder assembly which can also align itself with the removal means or path for the worked pieces .
  • the machine tool according to the invention comprises a tool holder head mounted so as to be movable according to a plurality of work axes that are controlled and correspond to the degrees of freedom of the head itself.
  • the machine tool 10 comprises a spindle holder head movable according to at least three controlled work axes, preferably three controlled work axes orthogonal to one another.
  • the tool holder head is movable according to at least four controlled work axes, one at least of which is an axis of rotation, preferably parallel to the inclined work axis Z.
  • the tool holder head is movable according to at least five controlled work axes, at least two of which are axes of rotation.
  • the removal path lies in a discharge surface or chute inclined between 5 and 60° with respect to a horizontal axis on which the pieces move away by gravity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Machine Tool Units (AREA)

Abstract

L'invention concerne une machine-outil (10) destinée à usiner des pièces de forme allongée, généralement capable d'usiner ces pièces et de garantir en même temps une visibilité optimale et un usinage facile d'une pluralité de surfaces et comprenant une tête (40) de support d'outils destinée à usiner les pièces, des moyens de déplacement (30, 32, 36, 38) permettant de déplacer ladite tête (40) en fonction d'au moins trois axes de travail commandés (X, Y, Z) et un ensemble de support (26) de pièces à usiner de forme allongée permettant de supporter les pièces à usiner. Ledit ensemble comprend au moins une série d'extensions (42) du support de pièces à usiner mobile entre une position de préhension de la pièce à usiner et une position de libération de celle-ci. Des moyens de chargement (48) permettant de charger les pièces à usiner sont interposés, pendant le fonctionnement, entre un magasin (50) de pièces à usiner et l'ensemble de support de pièces à usiner (26). Au moins un axe de travail (Z) est incliné par rapport au plan horizontal (P) et les moyens de chargement (48) sont disposés de manière à transporter les pièces à usiner le long d'une voie de chargement (52) parallèle à l'axe incliné (Z) et s'étendant à partir du magasin (50) vers l'ensemble de support (26) de pièces à usiner disposé dans la position de préhension.
EP03715342A 2003-03-11 2003-03-11 Machine-outil destinee a usiner des pieces de forme allongee Withdrawn EP1601493A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2003/000149 WO2004080650A1 (fr) 2003-03-11 2003-03-11 Machine-outil destinee a usiner des pieces de forme allongee

Publications (1)

Publication Number Publication Date
EP1601493A1 true EP1601493A1 (fr) 2005-12-07

Family

ID=32982960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03715342A Withdrawn EP1601493A1 (fr) 2003-03-11 2003-03-11 Machine-outil destinee a usiner des pieces de forme allongee

Country Status (3)

Country Link
EP (1) EP1601493A1 (fr)
AU (1) AU2003219529A1 (fr)
WO (1) WO2004080650A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110286A1 (it) * 2011-05-20 2012-11-21 Impresa 2000 Di Sacchi Paride E C S A S Macchina per la lavorazione di componenti allungati di legno o simili, in particolare componenti per infissi
CN105246646B (zh) * 2013-03-15 2019-02-19 美商麦克鲁森公司 微型车床
CN107088973A (zh) * 2017-05-12 2017-08-25 邵文远 自动玻璃面板加工机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1247346B (it) * 1991-05-06 1994-12-12 Bacci Paolino Di Giuseppe Bacc Dispositivo caricatore per macchine tenonatrici e simili
IT1264251B1 (it) * 1993-10-22 1996-09-23 Paride Sacchi Unita' per la lavorazione di pezzi in legno.
IT1278680B1 (it) * 1995-05-24 1997-11-27 Bacci Paolino Di Giuseppe Bacc Macchina utensile per la lavorazione di elementi allungati con porta-pezzo montato a sbalzo
ITFI20010068A1 (it) * 2001-04-20 2002-10-20 Bacci Paolino Di Bacci Agostin Macchina utensile per la lavorazione di estremita' ed intermedie su prezzi allungati come componenti di sedie ed altro

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004080650A1 *

Also Published As

Publication number Publication date
WO2004080650A1 (fr) 2004-09-23
AU2003219529A1 (en) 2004-09-30

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