EP1600267B1 - Maschine zur Bearbeitung von Holzplatten oder ähnlichen Werkstücken - Google Patents
Maschine zur Bearbeitung von Holzplatten oder ähnlichen Werkstücken Download PDFInfo
- Publication number
- EP1600267B1 EP1600267B1 EP20050425331 EP05425331A EP1600267B1 EP 1600267 B1 EP1600267 B1 EP 1600267B1 EP 20050425331 EP20050425331 EP 20050425331 EP 05425331 A EP05425331 A EP 05425331A EP 1600267 B1 EP1600267 B1 EP 1600267B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machining axis
- block
- axis
- machining
- pivot point
- 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.)
- Active
Links
- 238000003754 machining Methods 0.000 claims description 73
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000003019 stabilising effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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
- B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
- B27C5/02—Machines with table
Definitions
- the present invention relates to a machine for working wooden panels or similar workpieces.
- the machine forming the subject-matter of this specification is called a lower vertical router or, in the jargon of the trade, "spindle moulder”.
- This type of machine is used for various types of machining operations on panels made of wood or similar materials (for example, for moulding or cutting tenons on crosspieces or uprights which will be used to make door or window frames) and has average productivity.
- the machine basically comprises a horizontal work table on which the wooden panels rest and a machining axis protruding from the horizontal work table, both supported by a base.
- the machining axis comprises a motor-powered spindle, which supports and drives one or more tools for machining the panels.
- the spindle is powered by a drive unit mounted parallel with the spindle itself and connected to it by belt and pulley assemblies.
- the spindle may be adjusted in height (Z-axis) and inclined with respect to the horizontal work table in order to perform moulding operations on panels at different angles and on panels of different thickness, as for example described in document EP 1 136 206 , in accordance with the preamble of claim 1 .
- the machine comprises a rigid plate which mounts a slide which in turn mounts the spindle and drive motor unit.
- the slide is crescent shaped and is equipped with an arc-shaped toothed sector that meshes with a power-driven worm screw that is mounted parallel with the horizontal work table and enables the power-driven axis (that is, the spindle and drive motor unit) to be angled by up to about 45° towards the outside of the machine and up to about 10° towards the inside of the machine with respect to its reference position, that is to say, perpendicular to the horizontal work table.
- the power-driven axis that is, the spindle and drive motor unit
- the power-driven axis may be adjusted in height along the Z-axis with respect to the work table by means of an actuating element (for example a lead nut and worm screw mechanism) acting on a second slide connected directly to the spindle and parallel with the spindle itself.
- an actuating element for example a lead nut and worm screw mechanism
- a unit parallel with the spindle for driving the spindle itself and a twin drive unit for adjusting the height and angle of the spindle occupy a considerable amount of space under the work table and, at operating level, limit the extent to which the power-driven axis can be angled.
- the guards and covers around the tool must be repositioned, thereby increasing downtime.
- the object of the present invention is to overcome the above mentioned disadvantages by providing a machine for working wooden panels or similar workpieces where the structure for supporting the machining axis is extremely practical and precise and allows the machining axis itself to be adjusted quickly and easily and within a very wide angle.
- this object is achieved by a machine for working wooden panels or similar workpieces according to claim 1
- the machine according to the invention is used for machining wooden panels 1 or similar workpieces (indicated by the broken line in Figure 1 since they do not strictly form part of the invention).
- the machine labelled 2 in its entirety, is called a lower vertical router or, in the jargon of the trade, "spindle moulder".
- This type of machine is used for various types of machining operations on panels (for example, moulding or cutting tenons on crosspieces or uprights which will be used to make door or window frames).
- the machine 2 essentially comprises the following parts:
- the power-driven machining axis 4 is linked to a first supporting block 9 by guide means 17 and 18 for rotating the power-driven axis 4 about a first fixed pivot point P1 (see also Figure 7) through the first adjustment means 7.
- first supporting block 9 defining a part of the second adjustment means 8 can be moved vertically in both directions along a vertical axis Z comprising the first pivot point P1 about which the machining axis 4 rotates.
- the machining axis 4 is linked to the first block 9 by a part of the first adjustment means 7 which are linked, at a second pivot point P2 on the vertical axis Z, to a lower end of the first block 9.
- the machining axis 4 is slidably linked to the above mentioned part of the first adjustment means 7 through first kinematic coupling elements 10 defining a third, mobile pivot point P3 between the machining axis 4 itself and the above mentioned part of the first adjustment means 7.
- the first kinematic coupling elements 10 are linked to the machining axis 4 in such a way as to enable the machining axis 4 to move in both directions along the part of the first adjustment means 7, thereby causing the machining axis 4 to rotate about the first pivot point P1 (see arrows F,
- the above mentioned part of the first adjustment means 7 comprises a second block 14 for supporting a worm screw 15 driven by suitable means 14e.
- the second supporting block 14 is pivoted centrally at the lower end of the first block 9 to form the second pivot point P2.
- the worm screw 15 is engaged with a third block 16 equipped with a lead nut, forming the aforementioned first kinematic coupling means 10: this coupling enables the third block 16, that is, the machining axis 4, and the worm screw 15 to slide relative to each other, which, combined with the free rocking motion of the second block 14, enables the machining axis 4 to be positioned at different angles (see arrows F14 in Figures 3 and 7).
- the third block 16 is linked to the lower portion of the machining axis 4 at a third pivot point P3 and by means of a supporting guide 17 that is in turn linked to the upper portion of the first block 9 so as to allow the power-driven machining axis 4 to rotate about the first pivot point P1: the guide 17 defines a part of the aforementioned guide means.
- the supporting guide 17 is slidably coupled with the first block 9 by a dovetailed plate 18 attached to the first block 9, with the guide 17 slidably linked between them: the plate 18 constitutes the other part of the guide means.
- the plate 18 has an arc-shaped sliding profile designed to enable the machining axis 4 to rotate about the first pivot point P1 by the same maximum angle, labelled ⁇ and ⁇ ' in the drawings in both directions with respect to the vertical reference axis Z.
- This angle may, by way of a non-restricting example, be 45° in either direction relative to the axis Z.
- the above mentioned second adjustment means 8 comprise the first block 9 consisting of a slide 11 that is slidably coupled, on the surface opposite that to which the machining axis 4 is linked, with at least one pair of guides 12 and 13 for moving the slide 11 vertically (see arrows F2, Figures 6 and 7) so as to adjust the height of the machining axis 4.
- the two fixed vertical guides 12 and 13 in which the slide 11 runs are mounted on a frame 20 inside the machine 2.
- the slide 11 is driven by second power-driven kinematic elements 19 which are positioned vertically under the slide 11 and which move the slide 11 vertically in both directions.
- the second kinematic elements 19 may comprise a lead nut and screw mechanism 24 acting directly on the slide 11 and equipped with a drive motor 25 enabling the machining axis 4 to be adjusted in height as described above.
- the special geometric structure of the pivot points P2 and P3 is stabilised and guided by guiding and stabilising means 21 acting between the machining axis 4 and the first supporting block 9 in order to keep the machining axis 4 in a stable position at least when it is at a coincident position between the second and the third pivot points P2 and P3 which may also be the position where the machining axis 4 coincides with the vertical reference axis Z: in practice, the position where it is perpendicular to the work table 3, as shown in Figure 4.
- the guiding and stabilising means 21 may comprise a roller 22 associated to the third block 16 pivoted to the machining axis 4 at P3.
- the roller 22 is located at a distance D that does not coincide with the second and third pivot points P2 and P3 and is slidably coupled with an arc-shaped guide 23 made in the first block 9: this geometry thus creates a rigid system between the second block 14, the third block 16 and the machining axis 4 at the aforementioned coincident positions of the pivot points P2 and P3.
- the power-driven machining axis 4 preferably, but without restricting the scope of the invention, is an electro-spindle 4e on which the tool spindle 5 is mounted.
- the machining axis 4 may be adjusted by angling the machining axis 4 itself by activating the worm screw 15 that drives the lead nut of the third block 16, thus moving the axis 4 in the desired direction thanks not only to the rocking motion of the second block 14 but also to the sliding of the guide 17 on the plate 18 (as may be clearly inferred from Figures 3 and 5 showing two angular end positions of the machining axis 4).
- the machining axis 4 can be positioned in height relative to the work table 3 by actuating the slide 11 which enables the entire assembly, comprising the axis 4, guide 17 and the second block 14, to vary its position in height while keeping the first pivot point P1 on the vertical axis Z.
- the machine structured as described above achieves the aforementioned objects thanks to an extremely compact geometric and kinematic system that occupies a minimum of space and, compared to prior art arrangements, increases the adjustment range, for example in terms of the angle of the machining axis.
- the double pivoting of the machining axis 4 at points P1 and P3 and the pivoting of the rocking block 14 axis at point P2 enables the machining axis 4 to perform a wide angular movement in both directions but without increasing the overall dimensions of the structure.
- the adjustment in height also occurs along the vertical axis Z, thus making it easier to keep the machining axis 4 in a well defined position that eliminates the need to reposition the guards and guides around it.
- the latter can be angled to a large extent while greatly limiting the motion of the rocking block within the machine.
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)
Claims (11)
- Maschine zur Bearbeitung von Holzplatten (1) oder ähnlichen Werkstücken, wobei die Maschine von der Art ist, die mindestens Folgendes umfasst:- Einen horizontalen Arbeitstisch (3), auf dem die Platte (1) aufliegt;- Eine motorisierte Arbeitsachse (4), die eine Spindel (5) umfasst, die aus dem Arbeitstisch (3) herausragt und an der mindestens ein Werkzeug (6) zur Bearbeitung der Platte (1) montiert ist;- Erste Mittel (7) zur Einstellung des Winkels der Arbeitsachse (4) in Hinsicht auf eine vertikale Position, d.h. senkrecht zum horizontalen Arbeitstisch (3);- Zweite Mittel (8) zur Einstellung der Position der Arbeitsachse (4) in der Höhe, d.h. des Abstands zwischen dem Werkzeug (6) und dem horizontalen Arbeitstisch (3).- Dabei ist die motorisierte Arbeitsachse (4) durch Führungsmittel (17, 18) zur Drehung der besagten Achse (4) um einen ersten Drehpunkt (P1) mithile der ersten Einstellmittel (7) mit einem ersten Stützblock (9) verbunden;- Der erste Stützblock (9) bildet einen Teil der zweiten Einstellmittel (8) und kann auf einer Vertikalachse (Z), die den ersten Drehpunkt (P1) umfasst, um den sich die Arbeitsachse (4) dreht, vertikal in beide Richtungen bewegt werden;- Gekennzeichnet dadurch, dass die Arbeitsachse (4) durch einen Teil der ersten Einstellmittel (7) mit dem ersten Block (9) verbunden ist; die ersten Einstellmittel (7) sind ihrerseits an einem zweiten Drehpunkt (P2), der sich auf der Vertikalachse (Z) befindet, mit einem unteren Ende des ersten Blocks (9) verbunden;- Dabei ist die Arbeitsachse (4) verschiebbar mit dem besagten Teil der ersten Einstellmittel (7) verbunden, und zwar durch erste kinematische Kupplungselemente (10), die einen dritten, beweglichen Drehpunkt (P3) zwischen der Arbeitsachse (4) selbst und dem besagten Teil der ersten Einstellmittel (7) bilden; die ersten kinematischen Kupplungselemente (10) sind so mit der Arbeitsachse (4) verbunden, dass die Maschinenachse (4) selbst sich entlang dem besagten Teil der ersten Einstellmittel (7) in beide Richtungen bewegen kann und dabei dazu führt, dass sich die Arbeitsachse (4) um den ersten Drehpunkt (P1) dreht.
- Maschine nach Patentanspruch 1, dadurch gekennzeichnet, dass der erste Block (9) einen Schlitten (11) umfasst, der auf der gegenüberliegenden Seite von der, mit der die Arbeitsachse (4) verbunden ist, mit mindestens einem Führungspaar (12, 13) verschiebbar gekoppelt ist, um den Schlitten (11) vertikal zu bewegen; dies stellt die zweiten Mittel (8) zur Einstellung der Position der Arbeitsachse (4) in der Höhe dar.
- Maschine nach Patentanspruch 1, gekennzeichnet dadurch, dass besagter Teil der ersten Einstellmittel (7) einen zweiten Block (14) zur Stütze einer motorisierten Schnecke (15) umfasst, wobei der zweite Block (14) in der Mitte am unteren Ende des ersten Blocks (9) drehbar ist, wodurch der zweite Drehpunkt (P2) entsteht; die Schnecke (15) ist an einem dritten Block (16) befestigt, der mit einer Laufmutter ausgestattet ist, was die ersten kinematischen Kupplungsmittel (10) darstellt, um es dem dritten Block (16), das heißt der Arbeitsachse (4) und der Schnecke (15) zu ermöglichen, sich in Bezug aufeinander zu verschieben, was zusammen mit dem freien Schwingen des zweiten Blocks (14) ebenfalls ermöglicht, die Arbeitsachse (4) zu neigen.
- Maschine nach Patentanspruch 3, gekennzeichnet dadurch, dass der dritte Block (16) an einem dritten Drehpunkt (P3) mit dem unteren Stück der Antriebsachse (4) verbunden ist, ausgestattet mit einer Stützführung (17), die einen Teil der entsprechenden Führungsmittel darstellt; besagten Führung (17) ist ihrerseits mit dem oberen Stück des ersten Blocks (9) verbunden, sodass sich die motorisierte Arbeitsachse (4) um den ersten Drehpunkt (P1) drehen kann.
- Maschine nach Patentanspruch 4, gekennzeichnet dadurch, dass die Stützführung (17) durch eine Schwalbenschwanzplatte (18), die den anderen Teil der Führungsmittel darstellt und am ersten Block (9) befestigt ist, verschiebbar mit dem ersten Block (9) gekoppelt ist, wobei die Führung (17) verschiebbar zwischen den beiden angebracht ist; die Platte (18) hat ein bogenförmiges Verschiebungsprofil, das so entworfen wurde, dass es der Arbeitsachse (4) möglich ist, sich in Bezug auf die vertikale Bezugsachse (Z) in beide Richtungen mit dem gleichen maximalen Winkel (α, α') um den ersten Drehpunkt (P1) zu drehen.
- Maschine nach Patentanspruch 2, gekennzeichnet dadurch, dass der Schlitten (11) durch zweite motorisierte kinematische Elemente (19) angetrieben wird, die vertikal unter dem Schlitten (11) angebracht sind und die den Schlitten (11) vertikal in beide Richtungen bewegen.
- Maschine nach Patentanspruch 6, gekennzeichnet dadurch, dass der Schlitten (11) in dem Paar der feststehenden vertikalen Führungen (12, 13) läuft, die ihrerseits an einem Rahmen (20) in der Maschine (2) montiert sind.
- Maschine nach Patentanspruch 4, gekennzeichnet dadurch, dass sie Führungs- und Stabilisiermittel (21) umfasst, die zwischen der Arbeitsachse (4) um dem ersten Stützblock (9) wirken, um die Arbeitsachse (4) stabil zu halten, zumindest in einer Stellung, in der die Arbeitsachse (4) mit der vertikalen Bezugsachse (Z) übereinstimmt.
- Maschine nach Patentanspruch 8, gekennzeichnet dadurch, dass die Führungs- und Stabilisiermittel (21) eine Rolle (22) umfassen, die mit dem dritten Block (16) fest verbunden ist, drehbar am Punkt (P3) um die Arbeitsachse (4); die Rolle (22) befindet sich in einem feststehenden Abstand (D) vom dritten Drehpunkt (P3) und ist verschiebbar mit einer bogenförmigen Führung (23), die in dem ersten Block (9) herausgearbeitet ist, gekoppelt.
- Maschine nach Patentanspruch 1, gekennzeichnet dadurch, dass die motorisierte Antriebsachse (4) aus einer Elektrospindel besteht.
- Maschine nach Patentanspruch 6, gekennzeichnet dadurch, dass die zweiten kinematischen Elemente (19) einen Mechanismus aus Schnecke und Laufmutter (24) umfassen, der direkt auf den Schlitten (11) wirkt und mit einem Antriebsmotor (25) ausgestattet ist, der es ermöglicht, die Antriebsachse (4) in der Höhe einzustellen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO20040335 | 2004-05-25 | ||
ITBO20040335 ITBO20040335A1 (it) | 2004-05-25 | 2004-05-25 | Macchina per la lavorazione di pannelli in legno o assimilabili |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1600267A1 EP1600267A1 (de) | 2005-11-30 |
EP1600267B1 true EP1600267B1 (de) | 2007-07-04 |
Family
ID=34943197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20050425331 Active EP1600267B1 (de) | 2004-05-25 | 2005-05-18 | Maschine zur Bearbeitung von Holzplatten oder ähnlichen Werkstücken |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1600267B1 (de) |
DE (1) | DE602005001524T2 (de) |
IT (1) | ITBO20040335A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109352355A (zh) * | 2018-11-30 | 2019-02-19 | 盐城市海通机械制造厂 | 用于切割机的转向连接装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280609C (de) * | 1913-01-03 | |||
DE3736757C1 (de) * | 1987-10-30 | 1989-05-18 | Black & Decker Overseas Ag | Tischfraeseinrichtung |
DE10013571A1 (de) * | 2000-03-18 | 2001-09-27 | Leonhard Hofmann Maschinenfabr | Schwenkfräsmaschine |
-
2004
- 2004-05-25 IT ITBO20040335 patent/ITBO20040335A1/it unknown
-
2005
- 2005-05-18 EP EP20050425331 patent/EP1600267B1/de active Active
- 2005-05-18 DE DE602005001524T patent/DE602005001524T2/de active Active
Also Published As
Publication number | Publication date |
---|---|
DE602005001524D1 (de) | 2007-08-16 |
DE602005001524T2 (de) | 2008-03-20 |
EP1600267A1 (de) | 2005-11-30 |
ITBO20040335A1 (it) | 2004-08-25 |
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