EP0607763A1 - 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
EP0607763A1
EP0607763A1 EP93830462A EP93830462A EP0607763A1 EP 0607763 A1 EP0607763 A1 EP 0607763A1 EP 93830462 A EP93830462 A EP 93830462A EP 93830462 A EP93830462 A EP 93830462A EP 0607763 A1 EP0607763 A1 EP 0607763A1
Authority
EP
European Patent Office
Prior art keywords
bar
mills
uprights
shifting
axes
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.)
Granted
Application number
EP93830462A
Other languages
English (en)
French (fr)
Other versions
EP0607763B1 (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
Original Assignee
Montresor and C SRL
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 Montresor and C SRL filed Critical Montresor and C SRL
Publication of EP0607763A1 publication Critical patent/EP0607763A1/de
Application granted granted Critical
Publication of EP0607763B1 publication Critical patent/EP0607763B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 system which permits a programmable automatic movement on three axes of a mills holder bar such as the bar which is provided on a machine for polishing the edges or profiles of slabs in stone, marble or similar materials.
  • 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 machine 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.
  • these three kinds of displacement and adjustment for the tool-holder bar may be all synchronized with one another through a central control device with which it is possible to coordinate and measure the single movements in respect to any shape and dimension of the edge to be milled.
  • the present system for displacing the mills holder bar on three axes preferably in a machine for polishing edges of slabs in stone, marble or similar material, characterized mainly in that the ends of the mills holder bar are mounted on pairs of vertical uprights so as to slide and rotate angularly, the vertical uprights being in turn mounted on horizontal guides which are arranged in the upper part of a fixed support; the angular rotation and the vertical sliding of the bar on the respective uprights as well as the sliding of the uprights on the horizontal guides being provoked by corresponding chain gearings, such chains being driven by motors, or by re-circulating ball screws and/or racks, hydraulic cylinders or other similar moving means.
  • number 1 indicates a machine for polishing the edges of slabs, preferably in stone, marble or similar material, such machine being provided according to the present invention 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 instead of being trailed along the upper guides 21.
  • 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.

Landscapes

  • 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)
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
ITVR920100 1992-11-20
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

Publications (2)

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

Family

ID=11427599

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)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1518641A1 (de) * 2003-09-29 2005-03-30 MONTRESOR & C. S.r.l. Vorrichtung zum Polieren von Marmor- oder Stein-Platten mit um einen Drehpunkt rotierenden Kopf

Citations (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
EP0296126A2 (de) * 1987-05-22 1988-12-21 Marmo Meccanica - S.P.A. Vorrichtung zur Halterung und Bewegung des Werkzeugschlittens auf den automatischen Maschinen zum Polieren der abgerundeten Kanten von Marmor-, Granitplatten und dergleichen

Patent Citations (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
EP0296126A2 (de) * 1987-05-22 1988-12-21 Marmo Meccanica - S.P.A. Vorrichtung zur Halterung und Bewegung des Werkzeugschlittens auf den automatischen Maschinen zum Polieren der abgerundeten Kanten von Marmor-, Granitplatten und dergleichen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1518641A1 (de) * 2003-09-29 2005-03-30 MONTRESOR & C. S.r.l. Vorrichtung zum Polieren von Marmor- oder Stein-Platten mit um einen Drehpunkt rotierenden Kopf
US7070482B2 (en) 2003-09-29 2006-07-04 Nicola Montresor Marble or stone slab polishing machine provided with a rotating head mounted on a fulcrum

Also Published As

Publication number Publication date
DE607763T1 (de) 1995-06-08
IT1257688B (it) 1996-02-01
DE69315679D1 (de) 1998-01-22
ITVR920100A1 (it) 1994-05-20
EP0607763B1 (de) 1997-12-10
ITVR920100A0 (it) 1992-11-20

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