EP1916078B1 - Tischfräse - Google Patents

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Publication number
EP1916078B1
EP1916078B1 EP07119076A EP07119076A EP1916078B1 EP 1916078 B1 EP1916078 B1 EP 1916078B1 EP 07119076 A EP07119076 A EP 07119076A EP 07119076 A EP07119076 A EP 07119076A EP 1916078 B1 EP1916078 B1 EP 1916078B1
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EP
European Patent Office
Prior art keywords
spindle
supporting
rotation axis
shaft
moulder according
Prior art date
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Active
Application number
EP07119076A
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English (en)
French (fr)
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EP1916078A1 (de
Inventor
Aureliano Pucci
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SCM Group SpA
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SCM Group SpA
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Publication date
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Publication of EP1916078A1 publication Critical patent/EP1916078A1/de
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    • 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 invention relates to a machine tool, or toupie, or spindle moulder, according to the preamble of claim 1.
  • Spindle moulders comprising a vertical axis milling tool operationally positioned above a work surface on which the workpieces to be machined are placed such a machine tool is known from document US 1 506 154 A1 .
  • the milling tool is fixed to a spindle shaft mounted on a cylindrical support operationally positioned below the aforesaid work surface.
  • the cylindrical support is axially slidable in, and is supported by, an external support which can be orientated or fixed with respect to the work surface.
  • the external support further support an electric motor arranged for rotating the spindle shaft.
  • the electric motor is positioned laterally with respect to the spindle shaft and is provided with a motor shaft, or rotor, which is connected to the spindle shaft by means of a belt drive.
  • the spindle shaft and the motor shaft extend along respective substantially parallel axes.
  • a drawback of the aforesaid spindle moulders relates to the limited angular travels that are achievable in use by the spindle shaft, which limits the machinings that are performable by the milling tool.
  • spindle moulders in addition to being structurally complex, require periodical maintenance, with consequent prolonged machine downtimes and increased costs connected therewith, to replace the belt drive when worn.
  • US 1 506 154 discloses a universal machine for joinery work.
  • Such a machine comprises: a body having a plane work engaging face, a motor on the body, a shaft coupled to the motor and extending through the body in perpendicular relation to the plane of the face, means for coupling a tool to the shaft and grooves arranged in the body for securing to the body guiding member for the matter to be treated.
  • An object of the invention is to improve the spindle moulders.
  • a further object is to make spindle moulders that enable angular travels to be obtained that are greater than those of known spindle moulders.
  • a still further object is to provide spindle moulders that are structurally simple and more reliable than known spindle moulders.
  • a spindle moulder is provided as defined in claim 1.
  • a spindle moulder comprising supporting means for supporting spindle shaft means and a supporting casing for supporting motor shaft means, said motor shaft means being arranged for rotating said spindle shaft means and being fixed to said supporting casing.
  • the spindle shaft means and the motor shaft means form a single shaft and the casing is mounted operationally below the support which supports the spindle shaft means.
  • the spindle moulders made according to the invention do not require belt drives, which eliminates the maintenance operations for replacing the belt drives, with consequent money savings and less frequent machine downtimes, and makes the spindle moulders more reliable than known spindle moulders.
  • FIG. 1 With reference to Figure 1 there is shown a first embodiment A of a spindle moulder 1 used in the woodworking industry to make frames, shaped profiled elements, joints, grooves and the like on workpieces 17 made of wood or similar materials.
  • the spindle moulder 1 comprises a cutting tool 2, for example a vertical axis milling cutter, operationally positioned above a work surface 3 on which the workpieces 17 to be machined are placed and moved.
  • the cutting tool 2 is rotationally supported by a spindle shaft 4 that is rotatable around a first rotation axis Z1 thereof.
  • the spindle shaft 4 is a motor shaft, or rotor, of an electric motor 14 and comprises a first section 18 positioned in a casing 16 of the electric motor 14, such a casing 16 being arranged for supporting a stator 15.
  • the spindle moulder 1 further comprises first bearing means 21 interposed between the casing 16 and the first section 18 for rotationally supporting the latter around the first rotation axis Z1.
  • the spindle shaft 4 further comprises a second section 19 at least partially received in a sleeve 5.
  • the sleeve 5 having substantially the shape of a hollow cylinder and being operationally positioned below the aforesaid work surface 3, is fixed substantially at a first end 20 thereof by means of a threaded connection, which is not shown, to the casing 16.
  • the spindle moulder 1 further comprises second bearing means 22 interposed between the sleeve 5 and the second section 19 for rotationally supporting the latter around the first rotation axis Z1.
  • the spindle moulder 1 comprises a support 6 internally coupled by means of guide means, which is not shown, to the sleeve 5.
  • the sleeve 5 is internally slidable with respect to the support 6 along the first rotation axis Z1.
  • the guide means comprises linear guide means.
  • the guide means comprises a ball bearing guide.
  • the guide means comprises an internal wall 41 of the support 6 and an external wall 40 of the sleeve 5.
  • the support 6 is further rotatable with respect to a second rotation axis Z2 which is transverse to the first rotation axis Z1.
  • the support 6 can be orientated with respect to the work surface 3.
  • the spindle moulder 1 further comprises first moving means 7 arranged for rotating the support 6 around the second rotation axis Z2.
  • the first moving means 7 comprises a toothed circular sector 8 fixed to the support 6 and a toothed guide 9 arranged for engaging the toothed circular sector 8 and supported by a frame 12 of the spindle moulder 1.
  • the first moving means 7 further comprises first driving means, which is not shown, arranged for driving the toothed guide 9.
  • the first moving means 7 comprises pins 10 extending around the second rotation axis Z2.
  • the pins 10 engage respective first portions 11 of the support 6 that are substantially perpendicular to the second rotation axis Z2 and are supported by the frame 12.
  • the first moving means 7 comprises a smooth circular sector fixed to the support 6 and engaging a respective guide 9 supported by the frame 12, the smooth circular sector being driven by further first driving means.
  • the first moving means 7 comprises a linear actuator.
  • the support 6 is fixed with respect to the work surface 3.
  • the spindle moulder 1 further comprises second moving means 23 for moving the sleeve 5 and thus the casing 16 fixed on the latter, with respect to the support 6 along the first rotation axis Z1.
  • the second movement means 23 comprises a worm 24 extending along a third rotation axis Z3 substantially parallel to the first rotation axis Z1.
  • the worm 24 is rotationally supported by a second portion 27 of the support 6, extending substantially parallel to the second rotation axis Z2, and engages a lead nut 26 fixed to the casing 16.
  • the second moving means 23 further comprises second driving means 28 for rotating the worm 24.
  • the second moving means 23 comprises a further linear actuator.
  • the worm 24 also acts as an antirotation element for the sleeve 5.
  • the second moving means 23 is separate from an antirotation element that is provided for the spindle moulder 1.
  • the second embodiment B differs from the first embodiment A inasmuch as the spindle shaft 4 is connected by joint means 29 to a motor shaft 30, or rotor, of a further electric motor 31, the spindle shaft 4 and the motor shaft 30 being rotatable around the first rotation axis Z1.
  • the motor shaft 30 is received in, and supported by, the casing 16 of the further electric motor 31 and is wound by the stator 15, whilst the spindle shaft 4 is received in, and rotationally supported by, the sleeve 5 via third bearing means 33 and fourth bearing means 34.
  • the third embodiment C differs from the second embodiment B, inasmuch as the motor shaft 30 is received in, and rotationally supported by, the casing 16 via fifth bearing means 50 and sixth bearing means 51.
  • the spindle moulder 1 is structurally simple and enables angular travels to be obtained that are greater than those of known spindle moulders owing to the limited side overall dimensions.
  • the spindle shaft 4 is the motor shaft, or rotor, of the electric motor 14, whilst in the second embodiment B and in the third embodiment C the spindle shaft 4 and the motor shaft 30 are interconnected via joint means 28 and have in common the first rotation axis Z1.
  • the spindle moulder 1 is devoid of belt drives, which eliminates the maintenance operations required to replace the latter, with a consequent saving of money and less frequent machine downtimes and makes the spindle moulders 1 more reliable than known spindle moulders.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Turning (AREA)
  • Milling Processes (AREA)

Claims (13)

  1. Spindel-Former umfassend ein Spindel-Wellenmittel (4), das sich entlang einer Drehachse (Z1) erstreckt und das ausgelegt ist, um ein Fräswerkzeug (2) drehbar zu halten, ein Antriebs-Wellenmittel (14, 18, 30, 31), um das Spindel-Wellenmittel (4) zu drehen, wobei das Spindel-Wellenmittel (4) und das Antriebs-Wellenmittel (14, 18, 30, 31) die Drehachse (Z1) als gemeinsame Drehachse umfassen, und ein inneres Haltemittel (5) zum Halten des Spindel-Wellenmittels (4), wobei das innere Haltemittel (5) an einem Haltegehäuse (6) fixiert ist, um das Antriebs-Wellenmittel (14, 18, 30, 31) zu halten, dadurch gekennzeichnet, dass eine Drehsicherung (24) vorgesehen ist, um das innere Haltemittel (5) von einem Drehen um die Drehachse (Z1) abzuhalten.
  2. Spindel-Former gemäß Anspruch 1, bei dem das Spindel-Wellenmittel und das Antriebs-Wellenmittel (14, 18, 30, 31) Teil einer einzigen Welle (4) sind.
  3. Spindel-Former gemäß Anspruch 1, bei dem das Spindel-Wellenmittel und das Antriebs-Wellenmittel (14, 18, 30, 31) Teile von jeweiligen Wellen (4, 30) sind, die über ein Verbindungsmittel (29) miteinander verbunden sind.
  4. Spindel-Former gemäß einem der vorstehenden Ansprüche, bei dem das innere Haltemittel eine Hülse (5) umfasst.
  5. Spindel-Former gemäß einem der vorstehenden Ansprüche, weiter umfassend ein äußeres Haltemittel (6), das innen mit dem inneren Haltemittel (5) verbindbar ist.
  6. Spindel-Former gemäß Anspruch 5, weiter umfassend ein Führungsmittel, das mit dem äußeren Haltemittel (6) verbunden ist, um es dem inneren Haltemittel (5) zu ermöglichen, axial bezüglich des äußeren Haltemittels (6) entlang der Drehachse (Z1) zu gleiten.
  7. Spindel-Former gemäß Anspruch 6, bei dem das Führungsmittel eine lineare Führung umfasst.
  8. Spindel-Former gemäß Anspruch 6, bei dem das Führungsmittel eine Kugellager-Führung umfasst.
  9. Spindel-Former gemäß Anspruch 6, bei dem das Führungsmittel eine innere Wand (41) von dem äußeren Haltemittel (6) und eine äußere Wand (40) von dem inneren Haltemittel (5) umfasst.
  10. Spindel-Former gemäß einem der Ansprüche 5-9 weiter umfassend ein Bewegungsmittel (23) zum Bewegen des inneren Haltemittels (5) bezüglich des äußeren Haltemittels (6) entlang der Drehachse (Z1).
  11. Spindel-Former gemäß einem der Ansprüche 5-10 weiter umfassend ein weiteres Bewegungsmittel (7), das verbunden ist mit, und ausgelegt ist, um das äußere Haltemittel (6) bezüglich einer Arbeitsfläche (3) des Spindel-Formers (1) auszurichten.
  12. Spindel-Former gemäß Anspruch 11, soweit von Anspruch 10 abhängig, bei dem das Bewegungsmittel (23) und das weitere Bewegungsmittel (7) lineare Betätigungsmittel umfassen.
  13. Spindel-Former gemäß einem der vorstehenden Ansprüche, bei dem das Antriebs-Wellenmittel (14, 18, 30, 31) einen Teil eines elektrischen Antriebs (14, 31) bildet.
EP07119076A 2006-10-27 2007-10-23 Tischfräse Active EP1916078B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000345A ITMO20060345A1 (it) 2006-10-27 2006-10-27 Toupie

Publications (2)

Publication Number Publication Date
EP1916078A1 EP1916078A1 (de) 2008-04-30
EP1916078B1 true EP1916078B1 (de) 2011-01-26

Family

ID=38754683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07119076A Active EP1916078B1 (de) 2006-10-27 2007-10-23 Tischfräse

Country Status (4)

Country Link
EP (1) EP1916078B1 (de)
AT (1) ATE496744T1 (de)
DE (1) DE602007012188D1 (de)
IT (1) ITMO20060345A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1506154A (en) 1923-04-16 1924-08-26 Berthelsen Hans Jens Vilhelm Universal machine for joinery work
DE3333623A1 (de) * 1983-09-17 1985-04-11 Eugen Lutz GmbH u. Co Maschinenfabrik, 7130 Mühlacker Eckverbindung
DE10013571A1 (de) * 2000-03-18 2001-09-27 Leonhard Hofmann Maschinenfabr Schwenkfräsmaschine

Also Published As

Publication number Publication date
ATE496744T1 (de) 2011-02-15
EP1916078A1 (de) 2008-04-30
ITMO20060345A1 (it) 2008-04-28
DE602007012188D1 (de) 2011-03-10

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