EP0196941B1 - Vorrichtung zum Schleifen und Polieren der senkrechten Kante eines Steins oder eines vorgefertigten massiven Elementes - Google Patents

Vorrichtung zum Schleifen und Polieren der senkrechten Kante eines Steins oder eines vorgefertigten massiven Elementes Download PDF

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Publication number
EP0196941B1
EP0196941B1 EP19860400430 EP86400430A EP0196941B1 EP 0196941 B1 EP0196941 B1 EP 0196941B1 EP 19860400430 EP19860400430 EP 19860400430 EP 86400430 A EP86400430 A EP 86400430A EP 0196941 B1 EP0196941 B1 EP 0196941B1
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EP
European Patent Office
Prior art keywords
spindle
stone
vertical
polishing
grinding
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.)
Expired
Application number
EP19860400430
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English (en)
French (fr)
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EP0196941A1 (de
Inventor
Bernard Thibaut
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.)
Thibaut SA
Original Assignee
Thibaut SA
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Filing date
Publication date
Application filed by Thibaut SA filed Critical Thibaut SA
Publication of EP0196941A1 publication Critical patent/EP0196941A1/de
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Publication of EP0196941B1 publication Critical patent/EP0196941B1/de
Expired 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
    • 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

Definitions

  • the present invention relates to a device allowing careful surfacing and polishing of the side or edge, generally vertical, of a solid piece or prefabricated element, extending horizontally and laid flat on a suitable support.
  • the lateral edge of a stone placed flat like a slab or a stele, generally presents itself vertically and offers a contour which, depending on the intended use, can include a profile with straight parts, concave or convex with variable and more or less complex curvatures depending on the intended use for the stone to be worked.
  • the surfacing and then the polishing thereof are carried out by means of generally cylindrical wheels, called roller wheels, fixed at the end of a vertical rotary spindle carried by a manual or automatic machine.
  • the process implemented in the machines for surfacing and polishing stones or solid prefabricated elements laid flat consists after a preliminary work of the stones by the grinding wheels with rollers driven in rotation around a vertical axis until '' at an acceptable grain size for these grinding stones, turn the stone 90 ° to bring it into a vertical plane and finish polishing its lateral surface using another type of grinding stone with a flat working face arranged at right angles to the vertical axis of rotation, this working face being intended to be applied flat on the edge of the stone, which then extends horizontally.
  • this solution has the disadvantage of requiring a rocking of the stone to bring it from its horizontal position where it is laid flat, in a vertical position, which requires difficult handling, often delicate to implement without risk for the stone itself and which, in any case, considerably strain the cost price of the operation.
  • polishing machines comprising grinding wheels whose flat working face is arranged vertically and could therefore be applied flat against the vertical edge of a stone placed flat.
  • This is the case for example in the machine according to FR 1 422 266.
  • a machine of this kind cannot be used for the type of work to which the subject of the invention relates, that is to say finishing the polishing of the edge of a stone laid flat using the same machine as that used initially for the roughing of this polishing with roller-grinders with vertical axis.
  • the machine according to FR 1 422 266 is very complex and unsuitable for the work envisaged. In addition, it cannot be used for polishing a curved profile edge.
  • Japanese patent publication JP 59 134 655 relates to a device for polishing a vertical surface, which is adaptable to the vertical shaft of a polishing machine.
  • This device comprises a grinding wheel placed in a vertical plane and the horizontal shaft of which is carried by a support capable of being suspended from the vertical spindle of a polishing machine.
  • this device is relatively complicated and moreover it only allows the work of a vertical surface. This device cannot therefore be used for polishing edges with a certain inclination.
  • the present invention aims to achieve a device of very simple design, capable of being adapted on the vertical spindle of a polishing machine and which is able to allow both to polish the inclined edge or the vertical edge of a stone or other piece to be polished.
  • the invention relates to a device adaptable to the spindle with a vertical axis of a polishing machine, and which is intended to allow the surfacing and polishing of the edge of a stone or of a solid prefabricated element placed flat, by means of a rotating grinding wheel, the working face of which is arranged vertically, while the support of its horizontal drive shaft is suspended from the spindle with a vertical axis of the corresponding polishing machine, leaving this spindle free to rotate to allow the vertical working face of the grinding wheel to orient itself in relation to the edge of the stone or other material to be polished, the arrangement being such that the median wear line of the working face of the grinding wheel is arranged in a plane passing through the vertical axis of the spindle of the machine on which this device is adapted, characterized in that the support of the horizontal shaft of the grinding wheel consists of a housing also carrying the motor training ent of this shaft, and this housing is suspended from a support associated with the rotary spindle with a vertical axis of the corresponding
  • the whole of the present device can rotate around the vertical axis of the spindle of the machine on which this device is adapted. Consequently, when the grinding wheel is in pressure contact with the edge of the polishing stone, it follows exactly the outline outlined, whatever its profile and in particular the succession of straight, concave or convex parts that it present.
  • the reference 1 designates as a whole, a device to allow the surfacing and polishing of the lateral vertical edge of a stone or a similar prefabricated element (not shown), placed flat on the support of a machining machine of a type known per se.
  • This machine comprises in particular a vertical spindle mounted for rotation about an axis shown in the drawing under reference 2, the device with its flange 3 being screwed onto the spindle with vertical axis 2 of the machine.
  • the device 1 mounted under the vertical axis 2 of the spindle is mainly composed of a vertical transmission axis 4 mounted inside a main housing 5 comprising two parts which, in the embodiment illustrated in the figure , are designated under the references 5a and 5b and extend substantially perpendicular to each other.
  • the shaft 4 arranged along the vertical axis 2 of the spindle is rotatably mounted with the latter inside the part 5a of the housing on ball bearings such as 6 and 7.
  • the shaft 4 comprises a nozzle 8 on which a conical pinion 9 is immobilized, blocked at the end by an axial stop key 10.
  • the bevel gear 9 is designed to cooperate with a second bevel gear 11, fixed on the end piece 12 of a horizontal axis 13, extending inside the second part 5b of the housing 5, this shaft 13 having its horizontal axis and therefore perpendicular to axis 2 of the drive spindle.
  • the horizontal shaft 13 is rotatably mounted inside the housing 5b on bearings 14 and 15 and has at its opposite end outside the housing a head 16 on which can be immobilized, by means in themselves conventional , a cup wheel 17 whose figure schematically illustrates the profile.
  • the horizontal axis 13 has an axial bore 18 to which is connected a rotary connector 19, itself connected to a central water supply (not shown) for injecting from the inside of the axis 13 towards the cup wheel 17 the water necessary for the lubrication of this wheel during its use for surfacing and polishing the stone to be worked.
  • FIG. 1 the cup wheel 17 of a type which is itself perfectly known, is shown with a dotted transverse line 20, schematically showing on average the zone of attack of the wheel on the edge of the stone to be machined according to the wear of this grinding wheel during use.
  • the dotted line 20 of the grinding wheel is located at a distance designated in the drawing by the reference L with respect to the vertical axis of the rotary spindle driving the entire mechanism and in particular carrying out the rotation of the mold plug 17 via its support shaft 13 thanks to the bevel gear system 9 and 10.
  • the distance L is reduced as much as possible so as to avoid the overhang of the grinding wheel relative to the axis of the rotary spindle.
  • these provisions result in transmitting to the wheel a certain inertia due to the rotation of the axis.
  • the grinding wheel 17 tends to undergo a certain movement of oscillation with respect to the edge of the stone relative to its axis or else to "dig" slightly as the its displacement on the song of the stone.
  • a first solution may consist in mounting around the housing 5 carrying the latter a counterweight or stabilizing springs limiting to some extent the effect inertial drive of the housing.
  • FIG. 2 illustrates another embodiment of the device according to the invention which makes it possible to eliminate more effectively during use the oscillation effect of the grinding wheel and the drawbacks that it may present for machining and the perfect surfacing of the edge of the stone to be worked.
  • This solution consists in avoiding any overhang of the grinding wheel with respect to the axis of rotation of the spindle, by reducing to zero the value of the distance 1 provided for in the first embodiment.
  • the device under consideration which for the whole takes up the mechanical arrangements implemented in the first example, comprises an additional housing 21 interposed between the vertical axis of rotation 2 of the spindle and the body of the main housing 5.
  • a this effect the axis 2 of the spindle drives inside the housing 21 a vertical intermediate shaft 22 on which is immobilized a straight pinion 23 meshing itself with a pinion 3 of the same diameter 24 immobilized on the axis 4 mounted at the interior of part 5a of the housing 5.
  • the dotted line 20, representing the average attack face of the cup wheel 17 against the edge of the stone to be surfaced and polished according to the wear of this wheel is located substantially in the vertical axis. 2 spindle rotation, which eliminates the cantilever effect noted previously.
  • this variant there still remains the inertia effect created by the rotation of the spindle and makes it useful to maintain a counterweight or springs on the main housing of the device making it possible to improve the stability of the assembly.
  • the vertical axis of the spindle 2 no longer directly controls the driving movement of the horizontal shaft of the cup wheel.
  • the spindle with vertical axis 2 is associated with a support 25 under which is fixed a console 26 by means of an immobilizing flange 27.
  • the main housing 28 At the opposite end of the support 26 is mounted the main housing 28 inside which extends horizontally a horizontal drive shaft 29, guided in the housing on bearings such as 30 and 31.
  • the shaft 29 At one of its ends, the shaft 29 is directly connected to a hydraulic motor or similar 32 and has at its opposite end a head 33 on which is fixed a cup wheel 34, the median wear line shown diagrammatically under the reference 35 is substantially arranged in the plane of the vertical axis 2 of the spindle.
  • the spindle of the machine is thus left free to rotate in order to allow the face of the cup wheel to orient itself relative to the edge of the stone laid flat which should be planed and polished.
  • the assembly produced is very simple and quick to assemble, requiring only its adaptation to the rotary spindle 2 and its fixing in the manner of a tool chuck. It should be noted that the design of the device in this third variant of embodiment makes it possible to easily adjust the position of the grinding wheel relative to the edge of the stone to be surfaced and polished in order to obtain a better hold of the assembly when the grinding wheel is moving. in pressure on the concav or convex forms of the song of this stone.
  • FIG. 4 represents another variant derived from that of FIG. 3.
  • This other variant differs from the previous one in that the corresponding main housing 28a, inside which the drive shaft 29a extends, is attached to the corresponding support 25a via an articulated connection device.
  • This device comprises an arm 26a secured to the support 25a and a plate 26b secured to the housing 28a. These two parts are articulated around a common axis 36.
  • the arm 26a carries a finger 37 engaged in a slot 38 in the form of an arc of a circle formed in the plate 26b, this finger carrying itself a locking nut provided an operating lever 39.
  • the arrangement of the device also remains the same as in the variant according to FIG. 3.
  • the support 25a is also arranged to be associated with the drive spindle 2 under the same conditions as above.
  • the shaft of the grinding wheel 34a it is mounted in the housing 28a in the same way and its drive is ensured by a hydraulic motor 32a, or the like, the housing of which is fixed on the end of the housing 28a which is opposite to the wheel 34a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (1)

  1. An der mit vertikaler Achse angeordneten Spindel einer Poliermaschine ansetzbare Vorrichtung zum Polieren einer Kante eines Steins oder eines vorgefertigten massiven, flachgelegten Elements mit einer rotierenden Schleifscheibe, deren Arbeitsfläche vertikal angeordnet ist, wobei die Lagerung ihrer horizontalen Antriebswelle an der Spindel mit vertikaler Achse der entsprechenden Poliermaschine aufgehängt ist, diese Spindel frei drehbar ist, damit sich die vertikale Arbeitsfläche der Schleifscheibe relativ zu der Kante des Steins oder eines anderen zu polierenden Materials ausrichten kann, und wobei die Anordnung so getroffen ist, daß die mittlere Abnutzungslinie der Arbeitsfläche der Schleifscheibe in einer durch die vertikale Achse der Spindel der Maschine, an der die obige Vorrichtung angesetzt ist, festgelegten Ebene liegt, dadurch gekennzeichnet, daß die Lagerung der horizontalen Antriebswelle (29) der Schleifscheibe (34a) ein Gehäuse (28a) aufweist, welches auch den Antriebsmotor (32) trägt, daß das Gehäuse an einem Träger (25a) aufgehängt ist, der mit der rotierenden Spindel mit vertikaler Achse (2) über eine schwenkbare Befestigungsvorrichtung aus zwei Teilen (25a und 26b), die um eine gemeinsame Achse (36) schwenkbar sind, der Maschine in Verbindung steht, und daß ein Blockiermittel (39) zum Feststellen des Gehäuses (28a) in der gewünschten Position vorgesehen ist.
EP19860400430 1985-03-06 1986-02-28 Vorrichtung zum Schleifen und Polieren der senkrechten Kante eines Steins oder eines vorgefertigten massiven Elementes Expired EP0196941B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503301A FR2578467B1 (fr) 1985-03-06 1985-03-06 Dispositif de surfacage et de polissage du chant vertical d'une pierre ou d'un element prefabrique massif
FR8503301 1985-03-06

Publications (2)

Publication Number Publication Date
EP0196941A1 EP0196941A1 (de) 1986-10-08
EP0196941B1 true EP0196941B1 (de) 1989-08-23

Family

ID=9316927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860400430 Expired EP0196941B1 (de) 1985-03-06 1986-02-28 Vorrichtung zum Schleifen und Polieren der senkrechten Kante eines Steins oder eines vorgefertigten massiven Elementes

Country Status (4)

Country Link
EP (1) EP0196941B1 (de)
JP (1) JPS61230854A (de)
DE (1) DE3665143D1 (de)
FR (1) FR2578467B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20030049U1 (it) 2003-10-01 2005-04-02 Montresor & C Srl Dispositivo a dima per il controllo della movimentazione di frese diam antate o simili, applicabile su macchine lucidacoste di lastre in mate riale lapideo.
FR2936438B1 (fr) * 2008-10-01 2011-05-20 Thibaut Dispositif d'usinage destine au polissage de chants, permettant une automatisation complete de l'operation
TW201300194A (zh) * 2011-06-21 2013-01-01 Fepotec Ind Co Ltd 轉角式主軸
CN102248481B (zh) * 2011-07-20 2013-07-03 飞浦实业股份有限公司 转角式主轴
DE102011051962B4 (de) * 2011-07-20 2015-05-13 Sebald Schleifmittel GmbH & Co. KG Anordnung zur Aufnahme eines Schleifkopfes
CN102909640B (zh) * 2012-11-09 2015-03-04 昆山市大金机械设备厂 摇摆式抛光装置
CN108581679B (zh) * 2018-05-04 2019-02-12 深圳市中航装饰设计工程有限公司 一种建筑装修用墙面打磨器
CN115284095A (zh) * 2021-12-02 2022-11-04 浙江理工大学 一种印章石的打磨抛光机
CN121132419B (zh) * 2025-11-18 2026-02-06 山西钰沙新材料科技有限公司 一种铝材管内壁的抛光装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2127071A (en) * 1928-11-16 1938-08-16 Charles H Schmalz Apparatus for grinding
US1946864A (en) * 1930-03-17 1934-02-13 Jr Orville H Foster Grinding machine
GB730778A (en) * 1952-06-23 1955-06-01 Samuel Charles Peckett Method and means for preparing true surfaces
US2994990A (en) * 1957-05-24 1961-08-08 Mets Owerk Class Rauch & Schni Grinding and polishing machine
FR1355181A (fr) * 1962-04-16 1964-03-13 Hammond Machinery Builders Inc Procédé de polissage et machine à polir pour sa mise en oeuvre
FR1422266A (fr) * 1964-11-09 1965-12-24 Perfectionnements apportés aux machines à polir
FR2506652A3 (fr) * 1981-05-29 1982-12-03 Lgb Bricaud Perfectionnements aux machines-outils du genre des rectifieuses planes
JPS59134655A (ja) * 1983-01-21 1984-08-02 Hitachi Ltd 研削装置

Also Published As

Publication number Publication date
FR2578467B1 (fr) 1989-03-31
JPS61230854A (ja) 1986-10-15
EP0196941A1 (de) 1986-10-08
DE3665143D1 (en) 1989-09-28
FR2578467A1 (fr) 1986-09-12

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