EP0607763B1 - Anordnung zum dreieckigen Verstellen einer Fräserbefestigungsstange in einer Maschine zum Kantenpolieren von Platten aus Stein, Marmor oder ähnlichen Materialien - Google Patents

Anordnung zum dreieckigen Verstellen einer Fräserbefestigungsstange in einer Maschine zum Kantenpolieren von Platten aus Stein, Marmor oder ähnlichen Materialien Download PDF

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Publication number
EP0607763B1
EP0607763B1 EP93830462A EP93830462A EP0607763B1 EP 0607763 B1 EP0607763 B1 EP 0607763B1 EP 93830462 A EP93830462 A EP 93830462A EP 93830462 A EP93830462 A EP 93830462A EP 0607763 B1 EP0607763 B1 EP 0607763B1
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EP
European Patent Office
Prior art keywords
uprights
bar
fact
vertical
slide
Prior art date
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Expired - Lifetime
Application number
EP93830462A
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English (en)
French (fr)
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EP0607763A1 (de
Inventor
Gabriele Montresor
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.)
Montresor and C SRL
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Montresor and C SRL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain

Definitions

  • the present patent for industrial invention refers to a three axes milling and/or polishing apparatus according to the preamble of claim 1.
  • Such machines are usually provided with a moving system which moves both the whole tools-spindles assembly and the bar on which such tools are mounted.
  • This moving system permits the milling assemblies to be displaced according to both a rectilinear movement and an angular rotation in order that each mill may follow the outline of the edge of the slab to be milled.
  • edge polishing machines there are other known edge polishing machines, the capacity of intervention being better.
  • these machines have the inconvenience that their working assemblies are excessively complicate as well as the inconvenience that such machines are consequently too difficult and onerous as regards the working.
  • the main object of the present invention consists in enhancing the capacity of intervention and the adjusting and moving possibilities of the milling assemblies of the "edge polishing" machines, the necessary simplicity of the operative means being maintained, in order to eliminate the inconveniences which are due on one hand to the limitation in the versatility, and on the other to the complexity of the known machines and all the subsequent consequences.
  • the present invention proposes in particular that the adjustment and the displacements of the bar supporting the milling assemblies may be accomplished on three axes, that is along a horizontal and vertical displacement directions and around an axis of angular rotation.
  • number 1 indicates a machine for polishing the edges of slabs, preferably in stone, marble or similar material, such machine being provided with a particular moving system for the milling assemblies.
  • the machine 1 comprises a base 2 which is provided on the one hand with an assembly which permits the slabs to be supported and to horizontally slide, this assembly comprehending a conveyor belt 3.
  • the base 2 is provided with a milling assembly, designated on the whole with the number 4.
  • the milling assembly 4 is included in a fixed framework 5 and comprises a horizontal bar 6 which supports a series of spindles 7 with the respective milling tools thereof, the bar 6 being arranged on moving assemblies which permit the bar itself to axially rotate and to be translated according to orthogonal axes.
  • the bar 6 is fixed on horizontal shafts 8 which are pivoted upon plates which slide vertically on side uprights 9.
  • the bar 6, which supports the milling spindles 7, is moved angularly and may slide vertically on the vertical uprights 9 since the plates that hold the bar 6 itself are moved along vertical guides which are arranged on the vertical uprights 9 and are driven by a trailing system which consists in the present case of chains 16 which are moved on return pulleys 17 through the intervention of a motor 18.
  • a shaft 19 connects the movement which is imparted by the motor 18 to the upper return pulleys of both trailing assemblies which are arranged on each upright.
  • the chain 16 is hold through brackets 20 on the vertical slide plates of the bar 6. As a consequence of this, the chain 16 itself permits a vertical movement of the bar along the guides of the uprights 9 on which the bar is mounted.
  • the vertical uprights 9 are arranged on horizontal guides 21 which are placed in the upper part of the fixed framework 5.
  • the displacement of the uprights 9 along the guides 21 is accomplished by a chain system similar to that of the vertical shifting assembly.
  • a chain 22 is arranged on return pulleys 23 which are moved by a transmission shaft 24 which is driven by a motor 25, the said chain being connected through brackets 26 with the upper parts of the vertical uprights 9 so that the vertical uprights 9 may be moved horizontally along the guides 21, together with all the supported devices.
  • the lower parts of the vertical uprights may be either free or connected with further horizontal slide guides.
  • Such a multiple moving system permits the milling assembly 4 to be shifted in a synchronized way according to two translating movements, that is the horizontal movement on the guides 21 and the vertical movement on the uprights 9, and according to a rotary movement on the horizontal axes of the pivoted shafts 8.
  • different shifting parameters of the three motorized assemblies are set according to the slab profiles by simply selecting and synchronizing the duration and time of the operation of the single motors through a computerized control device.
  • This variant is represented by a shifting system which comprehends re-circulating ball screws 27 and 28.
  • the re-circulating ball screw 27 controls the vertical movement of the tool-holder bar on the uprights 9 while the re-circulating ball screw 28 controls the horizontal movement of the uprights 9 on the guides 21.
  • the motorized pulley 29 engages a fixed rim 30 directly and permits an angular shifting of the tool-holder bar 6 on the axis of the horizontal shaft 8 on which the bar itself is mounted.
  • FIG. 6 a variant of the movement of the vertical uprights 9 is shown in which the vertical uprights 9 are pivoted in the lower part on fixed shoes 32 through pivots 31.
  • the chain 33 which is similar to the chain 22, is connected through a hinge 34 with a connecting rod 35 which is connected in turn with the fixed framework through a bracket 36. Moreover, the connecting rod 35 engages a pivot 37 which is integral with the uprights 9.
  • the connecting rod 35 acts on the pivot 37 and permits the upright 9 to be oscillated onwards or backwards. In this way, it is possible to obtain the same effects of the above-described solution.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Claims (10)

  1. Apparat zum dreiachsigen Fräsen und/oder Polieren, vorzugsweise zum Polieren der Kanten von Platten aus Stein, Marmor oder ähnlichen Materialien, wobei ein horizontales Fräserhalter-Längsteil (6) an einem Paar vertikaler Ständer (9) angeordnet und enlang dieser Ständer vertikal verstellbar ist, dadurch gekennzeichnet, daß die Enden des Fräserhalter-Längsteils (6) derart an den vertikalen Ständern (9) angeornet sind, daß das Längsteil vertikal vershiebbar und winkelmäßig drehbar ist, wobei die vertikalen Ständer ihrerseits an horizontalen Führungen (21) im oberen Teil eines feststehenden Rahmenwerkes (5) angeordnet sind, wobei das winkelmäßige Verdrehen und das vertikale Verschieben des Längsteils (6) an den betreffenden Ständern (9) ebenso wie das Verschieben der Ständer (9) auf den horizontalen Führungen (21) durch Antriebsmittel ermöglicht und durch eine Steuereinrichtung gesteuert wird, wobei die Antriebsmittel durch Antriebsräder oder dergleichen angetrieben werden.
  2. Apparat gemäß Anspruch 1, dadurch gekennzeichnet, daß die winkelmäßige Rotation und das vertikale Verschieben des Längsteils (6) an den betreffenden Ständern (9) ebenso wie das Verschieben der Ständer (9) an den horizontalen Führungen (21) durch Ketten oder dergleichen (13, 16, 22) verursacht wird, die einzeln durch Motortriebe bewegt oder angehalten werden.
  3. Apparat gemäß den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die winkelmäßige Verdrehung und das vertikale Verschieben des Längsteils (6) an den betreffenden Ständern (9) ebenso wie das Verschieben der Ständer an den horizontalen Führungen (21) durch Kugelumlaufspindeln (27, 28) und/oder Zahnstangen, Hydraulikzylinder oder ähnliche Antriebsmittel ermöglicht wird.
  4. Apparat gemäß den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß das Längsteil (6), an welchem die Fräsergruppen (7) gelagert sind, horizontal zwischen zwei Ständern (9) angeordnet ist und vertikal an den Ständern (9) gleiten kann, da das Längsteil an Platten angebracht ist, die in vertikalen Führungen gleiten, welche an den Ständern (9) vorgesehen sind.
  5. Apparat gemäß den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß das Fräserhalter-Längsteil (6) durch die Einwirkung einer rotierenden Einrichtung winkelmäßig drehbar ist, die es dem Längsteil (6) ermöglicht, winkelmäßige Verlagerungen um die horizontale Achse der Schäfte (8) auszuführen, an denen das Längsteil angeordnet ist.
  6. Apparat gemäß den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die rotierende Einrichtung aus einem feststehenden, halbkreisförmigen verzahnten Kranz (15) besteht, der mit einer Kette (13) versehen ist, die an ihren Enden (14) an dem Kranz festgelegt ist, und die mit dem Zahnrad (12) eines Motors (11) in Eingriff steht, der integral mit dem Längsteil (6) ausgebildet ist, um das Längsteil (6) winkelmäßig zu bewegen.
  7. Apparat gemäß den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß das vorliegende Mehrfach-Verlagerungssystem erlabut, daß die Bearbeitungswerkzeug-Einrichtung (7) auf synchronisierte Weise gemäß zweier Translationsbewegungen, nähmich horizontal in den Führungen (21) und vertikal auf den Ständern (9), und gemäß einer Rotationsbewegung auf der horizontalen Achse der Schäfte (8), die das Längsteil (6) halten, verlagert werden kann.
  8. Apparat gemäß den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß in Abhängigkeit vom Profil der zu polierenden Platte underschiedliche Verlagerungsparameter für die motorisierten Einrichtungen gesetzt sind, durch einfaches Auswählen und Synchronisieren der Dauer und Betriebszeiten der einzelnen Motoren mittels einer Steuereinrichtung, z.B. einer computergestützten Steuereinrichtung.
  9. Apparat gemäß den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die vertikalen Ständer (9) im unteren Bereich an Zapfen (31) an feststehenden Schuhen (32) schwenkgelagert sind.
  10. Apparat gemäß Anspruch 9, dadurch gekennzeichnet, daß die Kette (33) durch ein Gelenk (34) mit einer Verbindungsstange (35) verbunden ist, die ihrerseits an einem Lager (36) mit dem feststehenden Rahmenwerk verbunden ist, während die Verbindungsstange andererseits an einem Zapfen (37) angreift, der integral mit den Ständern (9) augebildet ist.
EP93830462A 1992-11-20 1993-11-18 Anordnung zum dreieckigen Verstellen einer Fräserbefestigungsstange in einer Maschine zum Kantenpolieren von Platten aus Stein, Marmor oder ähnlichen Materialien Expired - Lifetime EP0607763B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR920100A IT1257688B (it) 1992-11-20 1992-11-20 Sistema per lo spostamento su tre assi della barra porta frese di macchine per la lucidatura di coste in materiale lapidei o similari
ITVR920100 1992-11-20

Publications (2)

Publication Number Publication Date
EP0607763A1 EP0607763A1 (de) 1994-07-27
EP0607763B1 true EP0607763B1 (de) 1997-12-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93830462A Expired - Lifetime EP0607763B1 (de) 1992-11-20 1993-11-18 Anordnung zum dreieckigen Verstellen einer Fräserbefestigungsstange in einer Maschine zum Kantenpolieren von Platten aus Stein, Marmor oder ähnlichen Materialien

Country Status (3)

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EP (1) EP0607763B1 (de)
DE (2) DE69315679D1 (de)
IT (1) IT1257688B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20030113A1 (it) 2003-09-29 2005-03-30 Montresor & C Srl Macchina per la lucidatura di lastre in materiale lapideo,

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1778132A (en) * 1927-10-10 1930-10-14 Wegner Julius Stone-working machine
IT1206932B (it) * 1987-05-22 1989-05-11 Marmo Meccanica Spa Meccanismo per il supporto e la movimentazione della tavola portautensili nelle macchine automatiche per la lucidatura dei bordi arrotondati di lastre di marmo,granito e simili

Also Published As

Publication number Publication date
ITVR920100A0 (it) 1992-11-20
EP0607763A1 (de) 1994-07-27
DE69315679D1 (de) 1998-01-22
DE607763T1 (de) 1995-06-08
IT1257688B (it) 1996-02-01
ITVR920100A1 (it) 1994-05-20

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