EP0033922B1 - Machine pour meuler les bords de pièces en forme de plaques, en particulier des plaques de verre ou de pierre - Google Patents

Machine pour meuler les bords de pièces en forme de plaques, en particulier des plaques de verre ou de pierre Download PDF

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Publication number
EP0033922B1
EP0033922B1 EP81100704A EP81100704A EP0033922B1 EP 0033922 B1 EP0033922 B1 EP 0033922B1 EP 81100704 A EP81100704 A EP 81100704A EP 81100704 A EP81100704 A EP 81100704A EP 0033922 B1 EP0033922 B1 EP 0033922B1
Authority
EP
European Patent Office
Prior art keywords
grinding
workpiece
edge
grinding wheel
cantilever arm
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
EP81100704A
Other languages
German (de)
English (en)
Other versions
EP0033922A3 (en
EP0033922A2 (fr
Inventor
Elmore Monari
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.)
Officina Meccanica Zanetti Aristodemo & C Sas
Original Assignee
Officina Meccanica Zanetti Aristodemo & C Sas
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 Officina Meccanica Zanetti Aristodemo & C Sas filed Critical Officina Meccanica Zanetti Aristodemo & C Sas
Priority to AT81100704T priority Critical patent/ATE4872T1/de
Publication of EP0033922A2 publication Critical patent/EP0033922A2/fr
Publication of EP0033922A3 publication Critical patent/EP0033922A3/de
Application granted granted Critical
Publication of EP0033922B1 publication Critical patent/EP0033922B1/fr
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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0084—Other grinding machines or devices the grinding wheel support being angularly adjustable
    • 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
    • B24B9/08—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 of glass
    • B24B9/10—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 of glass of plate glass

Definitions

  • the invention relates to an edge grinder for plate-shaped workpieces, in particular glass or stone slabs or the like, with a clamping device arranged on the upper end of a stand, in particular consisting of a plurality of horizontally oriented suction clamps, for the edge part lying in a horizontal position with, in particular, freely projecting edges , workpiece to be machined, a horizontally radially directed to the stand, around it in particular by a full 360 ° rotatable cantilever arm and with the help of a slide or the like.
  • the z. B. from DE-PS 1 181 584 known edge grinding machines of this type are used in particular for chamfering or chamfering the sharp edges of glass panes, glass or stone slabs, or the like.
  • the grinding unit is guided by rotating the horizontal cantilever arm around the workpiece clamped on the upper end of the stand and at the same time is held in engagement with the workpiece by constant contact of the guide roller against the peripheral surface of the workpiece and by displacement in the longitudinal direction of the cantilever arm.
  • the grinding wheel inclined with its lower head surface towards the workpiece plane is pressed from top to bottom against the respective upper peripheral edge of the workpiece, whereby it only engages with the workpiece edge with the lowest section of its inclined head surface.
  • the object of the invention is, in the case of the edge grinding machines of the type described at the outset, to set and readjust the inclined position of the grinding spindle relative to the workpiece on the one hand and the cutting edge. H. To allow grinding depth or the peripheral speed of the grinding wheel on the other hand.
  • this object is achieved in that the grinding unit with the aid of a first circular arc-shaped guide around a horizontal, parallel to the cantilever arm, i. H. radially to the workpiece pivot axis is pivotally and fixably attached to an intermediate holder, which with the aid of a second circular-arc guide around a horizontal, transverse to the cantilever arm d. H.
  • the swivel axis which is oriented tangentially to the workpiece, can be pivoted and locked on the slide, which can be moved in the longitudinal direction of the cantilever arm, the grinding wheel at the lower end of a vertical, driven by a hydraulic motor, fastened in the grinding unit by hand confirmation up and down, and the downward stroke of the grinding spindle at least one adjustable stop is limited.
  • the inclined position of the lower head surface of the grinding wheel with respect to the workpiece plane can be pivoted by pivoting the grinding unit with the aid of circular-arc guides around two mutually perpendicular, horizontal pivot axes, one of which is approximately radial to the workpiece and the other approximately tangential to the workpiece , precise and also very easy to set or readjust.
  • the drive of the grinding spindle with the aid of a hydraulic motor makes it possible to use the known, easy controllability of the hydraulic motors for the adjustment or readjustment of the rotational speed of the grinding spindle or the peripheral speed of the grinding wheel and the speeds mentioned to the respective properties of the workpiece or Adjust grinding wheel.
  • the adjustable stop to limit the downward stroke of the grinding spindle which can be moved up and down by hand, enables the cutting or grinding depth to be adjusted or adjusted and, at the same time, ensures uniform chamfering of the workpiece edges.
  • a particularly advantageous, preferred embodiment of the edge grinding machine according to the invention is characterized in that the grinding wheel is held at the lower end of the grinding spindle by means of a fastening screw which is coaxially pierced through the grinding spindle from above and the head of this fastening screw provided at the upper end of the grinding spindle is in the uppermost one End position of the grinding spindle comes into engagement with a suitable wrench that is freely rotatable in the grinding unit for turning the fastening screw when attaching and removing the grinding wheel.
  • the illustrated edge grinding machine is intended in particular for chamfering or chamfering the sharp edges of glass panes, glass plates, stone plates or the like. It consists of a stand A which has a clamping device at its upper end for the glass plate D lying in a horizontal position.
  • this clamping device consists of a plurality of suction clamps C directed upwards, some of which are provided directly on the upper end of the stand and some on horizontally pivotable arm B projecting therefrom.
  • the glass plate D lies on this in a horizontal plane suction clamps C and is held by suction.
  • the edge part of the clamped glass plate D with the edge D 'to be machined projecting laterally over the entire glass plate circumference is freely accessible both from above and from below.
  • a horizontal cantilever arm E directed radially to the stand A is rotatably mounted at least a full 360 ° around the stand A and carries one on the cantilever arm E from and to the stand A, i. H. from and to the glass plate D which is clamped thereon a slide or carriage F.
  • a grinding unit 1 is arranged on this slide or carriage F, which has a preferably pot-shaped, plate-shaped or ring-shaped grinding wheel M which overlaps the edge part of the glass plate D.
  • a counter pressure roller R2 is rotatably mounted on the slide M, which supports the glass plate D in the working area of the grinding wheel M.
  • the grinding unit 1 consists of a housing 2 which contains an approximately vertical grinding spindle 6 and the hydraulically actuated drive motor 10 (hereinafter referred to as hydraulic motor) which is axially parallel to the grinding spindle.
  • the grinding spindle 6 is rotatably supported by means of ball bearings (4) and a spacer sleeve 5 in an outer, coaxial spindle sleeve 3 and is driven by the hydraulic motor 10 via a flat belt 8, a pulley 9 fastened to the motor shaft and one on the upper end of the grinding spindle 6 attached pulley 7 driven.
  • the two pulleys 7, 9 are relatively wide, in particular designed as belt drums, in order to enable the grinding spindle 6 to move up and down relative to the housing 2 or the hydraulic motor 10 attached to it.
  • the spindle sleeve 3 is slidably guided up and down in the housing 2 of the grinding unit and can be moved with the aid of a hand lever 16.
  • the hand lever 16 is firmly seated on a shaft 15 to which a pair of mutually spring-loaded toothed sectors 14, 114 are connected in a rotationally fixed manner. These tooth sectors 14, 114 are in engagement with an outer, axially parallel toothing 103 of the spindle sleeve 3.
  • the spindle sleeve 3 can be fixed in the housing 2 with the aid of a radially directed clamping screw 27 with a lever handle.
  • the grinding wheel M is fastened to an overlying flange 11, which engages with an upper middle shoulder 111 in a centering hole provided in the head end in the lower end of the grinding spindle 6.
  • the grinding wheel M is fastened to the grinding spindle 6 with the aid of a screw 13 which is coaxially inserted from above through the grinding spindle 6 and screwed into a corresponding threaded hole in the central flange shoulder 111.
  • the polygonal head 113 of the fastening screw 13 projects from the upper head end of the grinding spindle 6 into a central recess in the associated pulley 7 and is freely accessible from above.
  • a tubular socket wrench 25 matching the polygonal head 113 of the fastening screw 13 is freely rotatably mounted in the upper end wall of the housing 2 and is rotated from the outside with the aid of a rotary knob 26, rotary handle or the like can be.
  • the tooth sectors 14, 114 and the toothing 103 With the help of the hand lever 16, the tooth sectors 14, 114 and the toothing 103, the spindle sleeve 3 with the grinding spindle 6 can be raised so far that the polygonal head 113 of the fastening screw 13 engages from below in the stationary, tubular socket wrench 25.
  • the downward stroke of the grinding spindle is consequently limited and adjustable depending on the given thickness of the glass plate D or depending on the desired width of the edge bevel.
  • a parallel to the grinding spindle 6 rod 18 is slidably mounted in the housing 2 of the grinding unit 1, which is led out of the housing 2 with its upper, thinner end 218.
  • the rod 18 has an axially parallel toothing 118, with which a gear 17 fastened on the shaft 15 of the hand lever 16 is in engagement.
  • the stop head 20 needs to be rotated and the stop screw 19 corresponding to the new plate thickness needs to be brought coaxially over the rod 18.
  • the width of the chamfer or the chamfer of the plate edge D ' can be adjusted or adjusted by rotating the individual stop screws 19.
  • the housing 2 of the grinding unit 1 is mounted with a lower circular wall section 28 on a corresponding, upper circular wall section 30 of an underlying, box-shaped intermediate holder 34 and can consequently be compared to the intermediate holder 34 by a through the center of curvature of the two wall sections 28, 30 approximately parallel to Longitudinal axis of the extension arm E extending pivot axis 29 can be pivoted to a limited extent.
  • the pivot axis 29 lies approximately in the lower head surface of the grinding wheel M and thereby intersects the axis of rotation of the grinding wheel M, as is shown in particular in FIG.
  • a threaded bolt 31 is fixed, which engages through an elongated hole 32 in the pivoting direction of the grinding unit 1 of the adjacent, lower, circular wall section 28 of the housing 2 and one inside through a housing 2 side opening 33 accessible screw nut carries.
  • this bolt 31 With the help of this bolt 31, the housing 2 of the grinding unit 1 can be fixed in its angular position set with respect to the intermediate holder 34.
  • the intermediate carrier 34 has a lateral, circular arc-shaped cheek 35 which bears against a corresponding, circular arc-shaped guide flange 36 which projects upwards from the carriage or carriage F.
  • the intermediate holder 34 together with the grinding unit 1, can be moved through the center of curvature of the cheek 35 and the guide flange 36 transversely to the longitudinal axis of the cantilever arm E d.
  • pivot axis 129 extending at right angles to the pivot axis 29 can be pivoted to a limited extent.
  • This pivot axis 129 also lies approximately in the lower head surface of the grinding wheel M and passes through the axis of rotation of the grinding wheel M, as can be seen in particular from FIG.
  • the circular arc-shaped cheek 35 of the intermediate holder 34 can be positively connected to the circular-arc-shaped guide flange 36 of the slide F and can be fixed on the guide flange 36 with the aid of a manually operated clamping or locking device 37.
  • the grinding unit 1 can be pivoted and adjusted about the two pivot axes 29 and 129, which run at right angles to one another, such that the lower, circular head surface of the grinding wheel M is opposite the desired or required the plane of the glass plate D assumes an inclined working position in which the grinding wheel M only engages with the beveled edge D 'of the glass plate D in the region of a limited section M' of its lower, circular head surface.
  • a guide roller R1 with a vertical axis is freely rotatable and adjustable in height.
  • the grinding unit 1 z. B. in the direction of the arrow Z2 in such a way around the glass plate D to be machined that the guide roller R1 continuously bears against the peripheral surface of the glass pane D.
  • the cantilever arm E is rotated around the stand A and the carriage F with the grinding unit 1 is moved on the cantilever arm E.
  • the grinding wheel M is pressed with the help of the hand lever 16 from above against the upper, sharp peripheral edge D 'of the glass plate D.
  • the direction of rotation of the grinding wheel M is indicated by the arrow direction Z1 in FIG.
  • the adjustable limitation of the downward stroke of the grinding wheel M ensures a uniformly wide bevel D "of the glass plate edge D '.
  • the working area M' of the grinding wheel M is supplied with cooling or rinsing liquid with the aid of a tube 38 passed through the tubular or annular guide roller R1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (8)

1. Machine pour meuler les bords de pièces en forme de plaques, en particulier de plaques de verre ou de pierre, ou similaires, comportant un dispositif de serrage disposé à l'extrémité supérieure d'un montant (A), en particulier formé de plusieurs organes de serrage à succion (C) alignés horizontalement, pour la pièce à usiner, placée en position horizontale et comportant des parties marginales faisant saillie librement de tous côtés, un bras en porte-à-faux dirigé horizontalement, radialement au montant (A), pouvant tourner autour de celui-ci, en particulier de 360°, et un groupe de meulage (1) guidé de manière à pouvoir coulisser sur le bras en porte-à-faux en s'éloignant et en se rapprochant de la pièce à l'aide d'un coulisseau, ou organe similaire, et qui présente une meule (M), en particulier en forme de cuvette, d'anneau ou de plateau, dont la surface inférieure de tête est un peu inclinée relativement au plan de la pièce, et qui peut être poussée par le haut contre le bord de la pièce, un galet de contre-pression (R2) disposé dans la région de la meule sur la face inférieure de la pièce, un galet de guidage s'appliquant latéralement contre la surface circonférentielle de la pièce et un moteur d'entraînement pour la meule, caractérisée en ce que le groupe de meulage (1) est fixé à un support intermédiaire (34) de manière à pouvoir pivoter autour d'un axe de pivotement horizontal (29) dirigé parallèlement au bras en porte-à-faux (E), c'est-à-dire radialement à la pièce (D) et à pouvoir être bloqué, à l'aide d'un premier guide en arc de cercle (28, 30), le support intermédiaire (34) étant monté sur le coulisseau (F), qui peut coulisser dans la direction longitudinale du bras en porte-à-faux (E) de manière à pouvoir pivoter autour d'un axe de pivotement horizontal (129) dirigé transversalement au bras en porte-à-faux (A), c'est-à-dire tangentiellement à la pièce (D) et à pouvoir être bloqué, à l'aide d'un deuxième guide en arc de cercle (35, 36), la meule (M) étant fixée à l'extrémité inférieure d'une broche de meulage verticale (6), pouvant être entraînée par un moteur hydraulique (10), et pouvant coulisser vers le haut et vers le bas dans le groupe de meulage (1) par actionnement manuel (16), et la course descendante de la broche de meulage (6) étant limitée par au moins une butée réglable (19).
2. Machine pour meuler les bords selon la revendication 1, caractérisée en ce que la meule (M) est fixée à l'extrémité inférieure de la broche de meulage (6) à l'aide d'une vis de fixation (13) insérée coaxialement par le haut à travers la broche de meulage (6), et, dans la position extrême de la broche de meulage (6) vers le haut, la tête (113) de cette vis de fixation, prévue à l'extrémité de la broche de meulage vient coopérer avec une clef complémentaire (25) montée de manière à pouvoir tourner librement dans le groupe de meulage (1) et servant à faire tourner la vis de fixation (13) lors du montage et du démontage de la meule (M).
3. Machine pour meuler les bords selon les revendications 1 et 2, caractérisée en ce que la meule (M) est fixée à une bride (11), qui s'engage par un appendice supérieur central (111) dans une perforation de centrage correspondante de côté de tête prévue dans l'extrémité inférieure de la broche de meulage (6), et présente une perforation filetée supérieure (12) pour la vis de fixation (13).
4. Machine pour meuler les bords selon les revendications 1 et 2, caractérisée en ce que la vis de fixation (13) présente une tête supérieure polygonale (113) et que la clef, montée de manière à pouvoir tourner en position fixe, est conçue sous forme de clef tubulaire à douille (25) avec poignée extérieure d'actionnement (26).
5. Machine pour meuler les bords selon la revendication 1, caractérisée en ce que l'arbre du moteur hydraulique (10), dirigé vers le haut, est disposé parallèlement à la broche de meulage (6) et est en liaison de transmission avec celle-ci par une courroie plate (8) et deux poulies (7, 9) élargies à la façon d'un tambour.
6. Machine pour meuler les bords selon la revendication 1, caractérisée en ce qu'à une tige (18, 218), pouvant coulisser de façon synchrone de la tige de meulage (6), et proportionnellement à celle-ci sous l'action de l'entraînement manuel (16) de celle-ci, sont adjointes plusieurs butées (19) réglables différemment, portées par une tête de butée (20) et que l'on peut amener individuellement l'une après l'autre en position de butée en faisant tourner la tête de butée (20).
7. Machine pour meuler les bords selon la revendication 6, caractérisée en ce qu'une tête de butée (20), montée à côté de la tige (18, 218) de manière à pouvoir tourner autour d'un axe (21) parallèle à celle-ci, porte plusieurs vis de butée passantes (19) disposées sur le même cercle primitif avec décalage angulaire entre elles, et, par sa région présentant les vis de butée (19), elle s'applique par-dessus la tige (18, 218) du côté de la tête.
8. Machine pour meuler les bords selon la revendication 1, caractérisée en ce qu'à travers le galet de guidage (R1) en forme de tube ou d'anneau passe un petit tube (38) dirigé vers la région de travail (M') de la meule (M) et destiné au liquide de lavage ou de refroidissement.
EP81100704A 1980-02-08 1981-01-31 Machine pour meuler les bords de pièces en forme de plaques, en particulier des plaques de verre ou de pierre Expired EP0033922B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100704T ATE4872T1 (de) 1980-02-08 1981-01-31 Kantenschleifmaschine fuer plattenfoermige werkstuecke, insbesondere glas- oder steinplatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1512580 1980-02-08
IT1512580 1980-02-08

Publications (3)

Publication Number Publication Date
EP0033922A2 EP0033922A2 (fr) 1981-08-19
EP0033922A3 EP0033922A3 (en) 1982-03-10
EP0033922B1 true EP0033922B1 (fr) 1983-10-05

Family

ID=11146500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100704A Expired EP0033922B1 (fr) 1980-02-08 1981-01-31 Machine pour meuler les bords de pièces en forme de plaques, en particulier des plaques de verre ou de pierre

Country Status (3)

Country Link
EP (1) EP0033922B1 (fr)
AT (1) ATE4872T1 (fr)
DE (1) DE3161060D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625535C1 (en) * 1986-07-29 1988-02-25 Festo Kg Eccentric-plate grinder
CN104400598A (zh) * 2014-11-04 2015-03-11 无锡市华明化工有限公司 一种改进型打磨机

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1237111B (it) * 1989-10-23 1993-05-18 Bavelloni Spa Z Macchina automatica per l'incisione delle facce di elementi lastriformi in genere e di lastre di vetro in particolare.
US5185959A (en) * 1990-03-29 1993-02-16 Tamglass Oy Apparatus for grinding the edge of a glass sheet
FI84564C (fi) * 1990-03-29 1991-12-27 Tamglass Oy Anordning foer slipning av en glasskivas kant.
ATE169542T1 (de) * 1994-09-21 1998-08-15 Wolfgang Mayer Maschine zur oberflächenbearbeitung der kanten eines grabsteins
ES2143347B1 (es) * 1996-07-10 2001-01-16 Crespillo Manuel Arjona Maquina para pulir cantos de piezas de marmol.
DE202014101146U1 (de) * 2014-03-13 2015-06-16 Röhm Gmbh Spannfutter
CN107378734A (zh) * 2017-09-12 2017-11-24 海盐星辰工具有限公司 一种扳手抛光机用抛光装置
CN113510577B (zh) * 2021-04-25 2023-03-31 佛山市顺德区新时泰家具实业有限公司 一种休闲椅制造用原料预处理工艺
CN116423331B (zh) * 2023-06-14 2023-08-11 河北德航玻璃制品有限公司 一种钢化玻璃自动输送磨边机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466492C (de) * 1926-08-19 1928-10-06 Jacob Heinrich Bek Schleifen ebener Facetten an Glasplatten
US1958734A (en) * 1932-12-24 1934-05-15 Mary A Woodsmall Universal grinder
US2401486A (en) * 1943-12-06 1946-06-04 Toledo Plate & Window Glass Co Beveling machine
DE1759738U (de) * 1957-01-25 1958-01-09 Prokasky & Bechtold O H G Vorrichtung zum schleifen von kanten an flachglas.
FR1307078A (fr) * 1961-11-29 1962-10-19 Appareil transportable pour le meulage des bords de plaques en un matériau compact, particulièrement de plaques de marbre, de verre ou analogues
US3187467A (en) * 1962-04-11 1965-06-08 Cortesi Antonio Machine for bevelling the edges of glass plates or the like
US4060938A (en) * 1976-04-20 1977-12-06 Barron Sr Lee H Glass beveling machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625535C1 (en) * 1986-07-29 1988-02-25 Festo Kg Eccentric-plate grinder
CN104400598A (zh) * 2014-11-04 2015-03-11 无锡市华明化工有限公司 一种改进型打磨机

Also Published As

Publication number Publication date
ATE4872T1 (de) 1983-10-15
EP0033922A3 (en) 1982-03-10
DE3161060D1 (en) 1983-11-10
EP0033922A2 (fr) 1981-08-19

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