EP2501519A1 - Procédé de polissage-parachèvement de surfaces de matériaux pierreux et machine associée audit procédé - Google Patents

Procédé de polissage-parachèvement de surfaces de matériaux pierreux et machine associée audit procédé

Info

Publication number
EP2501519A1
EP2501519A1 EP09802023A EP09802023A EP2501519A1 EP 2501519 A1 EP2501519 A1 EP 2501519A1 EP 09802023 A EP09802023 A EP 09802023A EP 09802023 A EP09802023 A EP 09802023A EP 2501519 A1 EP2501519 A1 EP 2501519A1
Authority
EP
European Patent Office
Prior art keywords
slab
smoothing
heads
tool
along
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Withdrawn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
EP09802023A
Other languages
German (de)
English (en)
Inventor
Luca Bonato
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.)
MBD SRL
Original Assignee
MBD 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 MBD SRL filed Critical MBD SRL
Publication of EP2501519A1 publication Critical patent/EP2501519A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/224—Portal grinding machines; Machines having a tool movable in a plane
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B24B41/047—Grinding heads for working on plane surfaces
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power

Definitions

  • the present invention relates to a method for smoothing-polishing surfaces of stone materials, ceramics, marble, granite and the like, herein below simply defined as polishing method.
  • the present invention further relates to a smoothing-polishing machine suitable for performing the above-mentioned method .
  • the operating heads are assembled on a framework that gives them a rectilinear reciprocating motion (working motion) with perpendicular direction with respect to the slab advancement direction.
  • Such construction arrangement has at least two operating inconveniences: the imperfect planarity of the smoothed surface and a very slow working speed, which result from the rectilinear reciprocating motion of the operating heads.
  • Object of the present invention is solving the above prior art problems, by providing a smoothing- polishing machine that allows a perfect planarity of the smoothed surface and a high working speed.
  • This object is reached by controlling the position of the tool-carrier heads, which move along the slab profile avoiding to bump against the slab edges.
  • figures 1, 2 and 3 representation of a preferred embodiment of the machine with fixed axis suitable for polishing regular slabs of the present invention
  • figure 4 diagram of the interaction along an irregular edge of a tool-holder head seen by an observer placed on the fixed axis K of the machine ;
  • FIG. 6 graphic diagram of the radial translation of a specific tool-holder head
  • figure 7 axonometric representation in orthogonal projection of a machine with tool- carrier heads actuated by an independent actuator
  • the operating heads 1, arranged radially with respect to the vertical axis "K”, are applied on a un chassis, globally designated with reference 2, rotating around the above axis.
  • every operating head 1 is supported and is sliding, through the support 3, on the guides 4, integral between the central body 5 and each one of the projecting wings 6 composing the chassis 2.
  • the radial adjustment of the operating heads 1 is performed through threaded pins 7, which are engaged by respective supports 3, placed in simultaneous rotation through the transmission assembly 8, contained inside the central body 5, composed of two bevel gear pairs 9 and of two transmission pinions 10 and rotated through the action of the motor 11 of the transmission 12, that moves one of the above pins .
  • the whole supporting chassis of the operating heads 1 is applied on the lower part of a cylindrical body 13, which is anchored, with points 14, on the carrier structure 15 of the machine.
  • the rotation of the chassis 2 and therefore of the individual operating heads 1 around the vertical axis "K" is performed by using a fifth wheel 16, interposed between the central body 5 of the moving chassis and the fixed cylindrical body 13, where the ring 17 is integral with the above cylindrical body, while the internal toothed ring 18, integral with the above central body 5, is rotated through the motor 19, equipped with the pinion 20, fastened to the base of said cylindrical body.
  • the polishing method of the invention refers to the use of the above-described machine, in which every operating head 1 moves along cyclical trajectories resulting from the rotary movement around its own axis and the rotation of the structure 2 around the central axis K.
  • the above-described machine provides for lifting the tool-carrier heads when there are slabs having irregular edges.
  • pneumatic means make the tool applied to the head 1 move away from the slab 100 during the head transit next to the recesses of the irregular edge of the slab; and said pneumatic means take care of restoring the tool/slab contact by following the same vertical trajectory but in reverse, when the tool is next to the slab.
  • a controller of the electronic type governs the detachment and the approach of the tool-holder head with respect to the slab, complying with set values of pressure and descent speed depending on the physical nature of the stone to be polished.
  • An application of the polishing method of the present invention comprises a slab 100 made of stone material, with indefinite length and width H, in a continuous advancement along direction AD.
  • a spindle 2 with maximum diameter D supports a series of tool- carrier heads 1 arranged radially with the same angular pitch.
  • the tools are of a cylindrical shape, the circular base having a diameter d and the cylinder height being h.
  • Spatula-type tools also fall within the scope of the method: these tools move along pendulum-type trajectories associated with the tool-holder head rotation.
  • the spindle 2 continuously rotates with respect to the fixed axis K perpendicular to the surface of the slab 100; the tool-carrier heads 1 rotate at a speed corresponding to the peripheral cutting speed Vp compatible with the characteristics of the material of the slab to be polished.
  • the number of tool-carrier heads 1, arranged radially along the circumference D of the spindle 2, is set.
  • the tool-carrier heads are four la, lb, lc and Id.
  • a controller C correlates data transmitted by a device S for measuring the shape of the slab 100 to be polished with: the slab advancement speed along direction AD; the rotation speed of the spindle 2 with respect to the fixed axis K; each actuator M having the task of moving radially along the guides 52 of each tool-holder head 1.
  • the software rebuilds the interaction with respect to the recessed edge 51, computing the value of arm R depending on the recessed edge 51.
  • the thereby collected data are used to control every actuator M, which changes the radial position of each tool- holder head la, lb, lc and Id.
  • each actuator M connected to the tool-holder head 1 ensures that the tool is kept inside the edge of the slab 100 independently from the geometric shape and therefore the presence of the recesses 51.
  • This arrangement removes every sort of manual adjustment in order to adapt the working distance D to the width H of the slab 100.
  • the tool detachment from the slab 100 is limited to the entry and exit steps of the slab 100, namely to the lower and upper edges of the slab 100.
  • the machine is further equipped with a single actuator connected to the spindle 2 which vertically moves the spindle 2 depending on the slab thickness.

Landscapes

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

Abstract

L'invention concerne une machine de polissage-parachèvement pour produits (100) de type dalle constitués d'un matériau pierreux, tel que du marbre, du granite ou un agglomérat, entre autres, ladite machine comportant au moins deux têtes (1) de travail à axe vertical, montées et réparties régulièrement dans les sens radial et circonférentiel sur un bâti animé d'un mouvement tournant autour d'un axe vertical fixe, et qui effectuent l'opération de polissage-parachèvement de la dalle (100) composée d'un côté d'entrée et d'un côté de sortie ainsi que de deux bords latéraux, parallèles ou irréguliers avec renfoncements (51) ; les têtes (1) se déplacent en suivant un parcours prédéfini le long de la surface de la dalle (100), avec des mouvements de travail combinés afin de couvrir entièrement la surface de la dalle (100), le contact entre la dalle (100) et les têtes (1) étant ininterrompu le long des bords irréguliers de la dalle (100).
EP09802023A 2009-11-17 2009-11-17 Procédé de polissage-parachèvement de surfaces de matériaux pierreux et machine associée audit procédé Withdrawn EP2501519A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000517 WO2011061765A1 (fr) 2009-11-17 2009-11-17 Procédé de polissage-parachèvement de surfaces de matériaux pierreux et machine associée audit procédé

Publications (1)

Publication Number Publication Date
EP2501519A1 true EP2501519A1 (fr) 2012-09-26

Family

ID=42830300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09802023A Withdrawn EP2501519A1 (fr) 2009-11-17 2009-11-17 Procédé de polissage-parachèvement de surfaces de matériaux pierreux et machine associée audit procédé

Country Status (2)

Country Link
EP (1) EP2501519A1 (fr)
WO (1) WO2011061765A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104354086B (zh) * 2014-10-30 2016-11-30 安徽鼎恒再制造产业技术研究院有限公司 一种磨床用双向打磨装置
CN110153856A (zh) * 2019-06-17 2019-08-23 巢湖云海镁业有限公司 一种镁合金零件生产用的打磨装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1267230A (fr) * 1960-06-04 1961-07-21 Perfectionnements apportés aux machines à surfacer les pierres telles que marbres, granits ou granitos
FR2480173A1 (fr) * 1980-04-15 1981-10-16 Virelec Dispositif et procede de travail automatique pour machine de polissage des pierres
IT1318885B1 (it) * 2000-09-20 2003-09-10 Bavelloni Z Spa Gruppo spigolatore per macchine per la lavorazione dei bordi di lastre in genere ed in particolare di lastre di vetro.
ITVI20030098A1 (it) * 2003-05-16 2004-11-17 Mbd Srl Macchina levigatrice-lucidatrice per prodotti lastriformi

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011061765A1 *

Also Published As

Publication number Publication date
WO2011061765A1 (fr) 2011-05-26

Similar Documents

Publication Publication Date Title
KR101748458B1 (ko) 석재 재료, 가령, 천연 석재 및 덩어리 석재, 세라믹 및 유리 슬래브를 평탄하게 하거나 또는 연마하기 위한 기계장치
CN110087829B (zh) 用于研磨和/或抛光例如天然或再造石的石材、陶瓷或玻璃板坯的机器和方法
US10239179B2 (en) Method for smoothing and/or polishing slabs of stone or stone-like material
EP1089851A1 (fr) Procede et dispositif de polissage de bords de plaquette
JP5549330B2 (ja) 加工ロボットとその加工制御方法
US5551908A (en) Centerless grinder and wheel truing device therefor
WO2011061765A1 (fr) Procédé de polissage-parachèvement de surfaces de matériaux pierreux et machine associée audit procédé
JP5911486B2 (ja) 金属製の製品を研削する研削機
KR102267749B1 (ko) 판재의 테두리 가공 지석 및 모따기 장치
CN102649252B (zh) 用于平整或抛光石材或石状材料的板坯的机器和心轴
CN106514473A (zh) 大平面圆盘自动抛光机
KR102486869B1 (ko) 드레싱방법, 드레싱장치, 지석 및 연삭반
JP2891697B1 (ja) 両面研磨装置
JP6384241B2 (ja) 球体研磨装置及び球体研磨方法
JP2006200687A (ja) 遊星ギヤ機構を用いた移動装置及び平面研磨機
SU558782A1 (ru) Планетарна шлифовальна головка
JP3108457B2 (ja) 球体ラッピング装置
JPH02237767A (ja) 研削砥石のドレッシング方法
KR101537157B1 (ko) 연마패드 드레싱 장치
JP2003260655A (ja) 円板状ワークのための研磨装置
TWM477930U (zh) 雙倍加工效率滾齒凸輪加工機
JP2002052467A (ja) Ｎｃ研削盤

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120608

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20140505