EP0033922A2 - Edge grinding machine for plate-shaped workpieces, particularly plates of glass or stone - Google Patents

Edge grinding machine for plate-shaped workpieces, particularly plates of glass or stone Download PDF

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Publication number
EP0033922A2
EP0033922A2 EP81100704A EP81100704A EP0033922A2 EP 0033922 A2 EP0033922 A2 EP 0033922A2 EP 81100704 A EP81100704 A EP 81100704A EP 81100704 A EP81100704 A EP 81100704A EP 0033922 A2 EP0033922 A2 EP 0033922A2
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EP
European Patent Office
Prior art keywords
grinding
workpiece
edge
spindle
grinding wheel
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
EP81100704A
Other languages
German (de)
French (fr)
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EP0033922A3 (en
EP0033922B1 (en
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
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Publication date
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Priority to AT81100704T priority Critical patent/ATE4872T1/en
Publication of EP0033922A2 publication Critical patent/EP0033922A2/en
Publication of EP0033922A3 publication Critical patent/EP0033922A3/en
Application granted granted Critical
Publication of EP0033922B1 publication Critical patent/EP0033922B1/en
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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
    • 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 guide wheel and a drive motor have the grinding wheel.
  • Edge grinding machines of this type known from DE-PS 1 181 584 are used in particular for chamfering or chamfering the sharp edges of glass panes, glass or stone plates, 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 which is inclined with its lower head surface to the workpiece plane, is pressed from top to bottom against the upper peripheral edge of the workpiece, whereby it only engages with the bottom section of its inclined head surface with the workpiece edge.
  • the grinding unit can be pivoted and locked on an intermediate holder, which can be fixed with the aid of a first, by means of a first circular arc-shaped guide about a horizontal pivot axis running parallel to the arm, ie radially to the workpiece second arcuate guide around a horizontal, ie across the boom arm ie
  • the swivel axis which is directed tangentially to the workpiece, can be swiveled and locked on the slide that can be moved in the longitudinal direction of the cantilever arm, whereby the grinding wheel is attached to the lower end of a vertical grinding spindle that can be driven by a hydraulic motor and that can be moved in the grinding unit by hand confirmation and the downward stroke of the grinding spindle is limited by at least one adjustable stop.
  • the inclined position of the lower head surface of the grinding wheel relative to the workpiece plane can be pivoted by pivoting the grinding unit with the aid of circular-shaped guides around two mutually perpendicular, horizontal pivot axes, one of which is approximately radial to the workpiece and the other is approximately tangential to the workpiece, can be adjusted and adjusted very precisely and very easily.
  • 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 on the lower end of the grinding spindle with the aid of a fastening screw which is coaxially pierced through the grinding spindle from above and the head of this fastening screw provided on the upper end of the grinding spindle is in the uppermost one End position of the grinding spindle with a suitable, freely rotatable wrench in the grinding unit for turning the fastening screw when engaging and removing the grinding wheel.
  • this clamping device consists of a plurality of suction clamps C pointing upwards, which are provided partly directly on the upper end of the stand and partly on horizontally pivotable arms 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 projecting laterally over the entire glass plate circumference with the edge D 'to be machined is freely accessible both from above and from below.
  • a horizontal arm arm E, directed radially to the stand A, is rotatably mounted at least 360 ° around the stand A and carries one on the arm E from and to the stand A, i.e. from and to the slide plate or carriage F slidable thereon on the clamped glass plate D.
  • 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 overlapping the edge part of the glass plate D. having.
  • a counter-pressure roller R1 is rotatably mounted on the slide M and 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 drive motor 10 which is parallel to the grinding spindle.
  • the grinding spindle 6 is by means of ball bearings (4) and a spacer sleeve 5 is rotatably supported in an outer, coaxial spindle sleeve 3 and is driven by the hydraulic motor 10 via a flat belt 8, which has a belt pulley 9 fastened to the motor shaft and a belt pulley 7 fastened to the upper end of the grinding spindle 6.
  • the two pulleys 7, 9 are relatively wide, in particular designed as belt drums, in order to enable the upward and downward displacement of the grinding spindle 6 relative to the housing 2 or the drive motor 10 attached to it.
  • the spindle sleeve 3 is 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 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 middle flange attachment 111.
  • a tubular socket 25 suitable for the polygonal head 113 of the fastening screw 13 is freely rotatably mounted in the upper end wall of the housing 2 and can be rotated from the outside with the aid of a rotary knob 26, rotary handle or can be rotated.
  • 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 cutting or grinding depth ddr grinding wheel M depends on the downward stroke of the spindle sleeve 3 with the grinding spindle 6 when chamfering or chamfering the glass plate edge D '.
  • the downward stroke of the grinding spindle is consequently limited and adjusted depending on the given thickness of the glass plate D or depending on the desired width of the edge bevel.
  • the rod 18 has an axially parallel toothing 118, with which a gear 17 fastened to the shaft 15 of the hand lever 16 is in engagement.
  • These stop screws 19 are screwed into continuous, vertical bores of the stop head 20 and project on the underside thereof.
  • the stop screws 19 can be set individually one after the other via the rod 18 approximately coaxially therewith.
  • the spring-loaded locking ball 22 can be mounted, for example, in the stop head 20, while the locking recesses 24 are provided in the upper outer surface of the housing 2. However, an inverted arrangement is also possible.
  • Stop screws 19 can be set, for example, so that depending on the different thicknesses of the glass plates D to be machined, they project differently downwards from the stop head 20 and consequently determine different downward strokes of the grinding spindle 6.
  • 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 bevelling 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 supported with a lower circular wall section 28 on a corresponding upper, circular wall section 30 of a box-shaped intermediate holder 34 lying underneath and can consequently be about an intermediate through the center of curvature of the two wall sections 28, 30 pivot axis 29 extending parallel to the longitudinal axis of the extension arm E 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. 5.
  • a threaded bolt 31 is fixed, which extends through an elongated hole 32 in the pivoting direction of the grinding unit 1 of the anlieein, our, circular wall section 26 of the housing 2 and one inside the housing 2 a 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 relative 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 about a through the center of curvature of the cheek 35 and the guide flange 36 transversely to the longitudinal axis of the cantilever arm E i.e. 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. 3.
  • 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.
  • a guide roller is mounted freely rotatable and adjustable in height with a vertical axis R1.
  • the grinding unit 1 is deflected around the glass plate D to be processed, for example in the direction of the arrow Z2, in such a way that the guide roller R1 constantly 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 in FIG. 2 with the arrow direction Z1.
  • 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.

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  • 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)

Abstract

1. An edge grinding machine for plate-shaped workpieces, particularly plates of glass or stone or the like, comprising a gripping means for gripping the workpiece which is to be machined and which is disposed in a horizontal position with in particular edge portions thereof projecting freely on all sides, said gripping means being disposed on the upper end of a support (A) and comprising in particular a plurality of horizontally disposed suction grippers (C), a cantilever arm which is disposed horizontally radially with respect to the support (A) and which is rotatable around the support in particular through a full 360 degrees, and a grinding unit (1) which is guided displaceably by means of a carriage or the like on the cantilever arm, from and towards the workpiece, and which comprises a grinding wheel (M) which in particular is of a cup-shaped, annular or plate-shaped configuration and which is somewhat inclined with its underneath head surface relative to the plane of the workpiece and which can be pressed against the edge of the workpiece from above, a counter-pressure roller (R2) which is arranged in the region of the grinding wheel on the underside of the workpiece, a guide roller which bears laterally against the peripheral surface of the workpiece, and a drive motor for the grinding wheel, characterised in that the grinding unit (1) is secured to an intermediate holder (34) in such a way as to be pivotal and lockable about a horizontal pivot axis (29) extending parallel to the cantilever arm (E), that is to say, radially with respect to the workpiece (D), by means of a first arcuate guide (28, 30), which intermediate holder (34) is mounted on the carriage (F) which is displaceable in the longitudinal direction of the cantilever arm (E), in such a way as to be pivotal and lockable about a horizontal pivot axis (129) directed transversely with respect to the cantilever arm (E), that is to say, tangentially with respect to the workpiece (D), by means of a second arcuate guide (35, 36), wherein the grinding wheel (M) is secured to the lower end of a vertical grinding spindle (6) which is drivable by a hydraulic motor (10) and which is displaceable upwardly and downwardly in the grinding unit (1) by manual actuating means (16), and the downward stroke movement of the grinding spindle (6) is restricted by at least one adjustable abutment (19).

Description

Die Erfindung betrifft eine Kantenschleifmaschine für plattenförmige Werkstücke, insbesondere Glas- oder Stein= platten od. dgl., mit einer auf dem oberen Ende eines Ständers angeordneten, insbesondere aus mehreren, waagerecht ausgerichteten Saugspannern bestehenden Spannvorrichtung für das in waagerechter Stellung mit insbesondere allseitig frei vorspringenden Randteilen liegende, zu bearbeitende Werkstücke einem waagerecht radial zum Ständer gerichteten, um diesen herum insbesondere um volle 360° drehbaren Aus= legerarm und einem mit Hilfe eines Schlittens od. dgl. auf dem Auslegerarm vom und zum Werkstück verschiebbar ge= führten Schleifaggregat, das eine insbesondere topf-, ring-oder tellerförmige mit ihrer unteren Kopffläche zur Werk= stückebene etwas geneigte, von oben gegen die Werkstückkante andrückbare Schleifscheibe, eine im Bereich der Schleif= scheibe auf der unteren Werkstückseite angeordnete Gegen= druckrolle, eine seitlich gegen die Umfangsfläche des Werk= stücks anliegende Führungsrolle und einenAntriebsmotor die Schleifscheibe aufweist.The invention relates to an edge grinder for plate-shaped workpieces, in particular glass or stone = plates 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 projecting in the horizontal position with, in particular, freely projecting on all sides Workpieces lying on the edge parts to be machined have a horizontally radially directed to the stand arm, which can be rotated around the stand in particular by a full 360 °, and a grinding unit which can be moved to and from the workpiece by means of a slide or the like in particular pot-shaped, ring-shaped or plate-shaped with its lower head surface slightly inclined to the workpiece = workpiece surface, which can be pressed against the workpiece edge from above, a counterpressure roller arranged in the area of the grinding disc on the lower workpiece side, one laterally against the peripheral surface of the work = piece abut The guide wheel and a drive motor have the grinding wheel.

Die z.B. aus der DE-PS 1 181 584 bekannten Kantenschleif= maschinen dieser Art werden insbesondere zum Abfasen bzw. Auschrägen der scharfen Kanten von Glasscheiben, Glas- oder Steinplatten, od. dgl. benutzt. Das Schleifaggregat wird dabei durch Drehung des waagerechten Auslegerarms um das auf dem oberen Ende des Ständers festgespannte Werkstück herum geführt und gleichzeitig durch dauernde Anlage der Führungsrolle gegen die Umfangsfläche des Werkstücks und durch Verschiebung in der Längsrichtung des Auslegerarms mit dem Werkstück im Eingriff gehalten. Die mit ihrer unteren Kopffläche zur Werkstückebene geneigte Schleif= scheibe wird von oben nach unten gegen die jeweils obere Umfangskante des Werkstücks gedrückt, wobei sie nur mit dem untersten Abschnitt ihrer schräggestellten Kopffläche mit der Werkstückkante in Eingriff kommt.The e.g. Edge grinding machines of this type known from DE-PS 1 181 584 are used in particular for chamfering or chamfering the sharp edges of glass panes, glass or stone plates, 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, which is inclined with its lower head surface to the workpiece plane, is pressed from top to bottom against the upper peripheral edge of the workpiece, whereby it only engages with the bottom section of its inclined head surface with the workpiece edge.

Aufgabe der Erfindung ist es, bei den Kantenschleifmaschinen der eingangs beschriebenen Art eine genaue, leicht erziel= bare Ein- bzw. Nachstellung der Schräglage der Schleif= spindel gegenüber dem Werkstück einerseits und der Schnitt- d.h. Schleiftiefe bzw. der Umfangsgeschwindigkeit der Schleifscheibe andererseits zu ermöglichen.The object of the invention is, in the edge grinding machines of the type described at the outset, to achieve an accurate, easily obtainable = readjustment of the inclined position of the grinding spindle relative to the workpiece on the one hand and the cutting i.e. To allow grinding depth or the peripheral speed of the grinding wheel on the other hand.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass das Schleifaggregat mit Hilfe einer ersten kreisbogen= förmigen Führung um eine waagerechte, parallel zum Ausleger= arm, d.h. radial zum Werkstück verlaufende Schwenkachse schwenkbar und feststellbar an einem Zwischenhalter befe= stigt ist, der mit Hilfe'einer zweiten kreisbogenförmigen Führung um eine waagerechte, quer zum Auslegerarm d.h. tangential zum Werkstück gerichtete Schwenkachse schwenkbar und feststellbar auf dem in der Längsrichtung des Ausleger= arms verschiebbaren Schlitten gelagert ist, wobei die Schleifscheibe am unteren Ende einer vertikalen, von einem Hydraulikmotor antreibbaren/im Schleifaggregat durch Hand= bestätigung auf und ab verschiebbaren Schleifspindel befe= stigt und der Abwärtshub der Schleifspindel durch mindestens einen einstellbaren Anschlag begrenzt ist.This object is achieved according to the invention in that the grinding unit can be pivoted and locked on an intermediate holder, which can be fixed with the aid of a first, by means of a first circular arc-shaped guide about a horizontal pivot axis running parallel to the arm, ie radially to the workpiece second arcuate guide around a horizontal, ie across the boom arm ie The swivel axis, which is directed tangentially to the workpiece, can be swiveled and locked on the slide that can be moved in the longitudinal direction of the cantilever arm, whereby the grinding wheel is attached to the lower end of a vertical grinding spindle that can be driven by a hydraulic motor and that can be moved in the grinding unit by hand confirmation and the downward stroke of the grinding spindle is limited by at least one adjustable stop.

Bei der erfindungsgemässen Ausbildung der Kantenschleifma= schine kann die Schräglage der unteren Kopffläche der Schleifscheibe gegenüber der Werkstückebene durch Ver= schwenkung des Schleifaggregats mit Hilfe von kreisbogen= förmigen Führungen um zwei zueinander senkrechten, waage= rechten Schwenkachsen, von denen die eine etwa radial zum Werkstück und die andere etwa tangential zum Werkstück verlaufen, genauestens und dabei auch sehr einfach ein- bzw. nachgestellt werden. Der Antrieb der Schleifspindel mit Hilfe eines Hydraulikmotors ermöglicht es, für die Ein- bzw. Nachstellung der Drehgeschwindigkeit der Schleifspindel bzw. der Umfangsgeschwindigkeit der Schleifscheibe die an sich bekannte, leichte Regelbarkeit der Hydraulikmotoren auszunutzen und die genannten Geschwindigkeiten den jeweiligen Eigenschaften des Werkstücks bzw. der Schleif= scheibe anzupassen. Der einstellbare Anschlag zur Begrenzung des Abwärtshubs der handmässig auf und ab verschiebbaren Schleifspindel ermöglicht die Ein- bzw. Nachstellung der Schnitt- bzw. Schleiftiefe und gewährleistet gleichzeitig ein gleichförmiges Abschrägen der Werkstückkanten.In the embodiment of the edge grinding machine according to the invention, the inclined position of the lower head surface of the grinding wheel relative to the workpiece plane can be pivoted by pivoting the grinding unit with the aid of circular-shaped guides around two mutually perpendicular, horizontal pivot axes, one of which is approximately radial to the workpiece and the other is approximately tangential to the workpiece, can be adjusted and adjusted very precisely and very easily. 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.

Eine besoders vorteilhafte, bevorzugte Ausführungsform der erfindungsgemässen Kantenschleifmaschine ist dadurch kennzeichnet, dass die Schleifscheibe an dem unteren Ende der Schleifspindel mit Hilfe einer von oben koaxial durch die Schleifspindel hindurch gestechte Befestigungsschraube festgehalten ist und der am oberen Ende der Schleifspindel vorgesehene Kopf dieser Befestigungsschraube in der obersten Endstellung der Schleifspindel mit einem passenden, frei drehbar im Schleifaggregat gelagerten Schraubenschlüssel zum Verdrehen der Befestigungsschraube beim An- und Abbauen der Schleifscheibe in Eingriff kommt.A particularly advantageous, preferred embodiment of the edge grinding machine according to the invention is characterized in that the grinding wheel is held on the lower end of the grinding spindle with the aid of a fastening screw which is coaxially pierced through the grinding spindle from above and the head of this fastening screw provided on the upper end of the grinding spindle is in the uppermost one End position of the grinding spindle with a suitable, freely rotatable wrench in the grinding unit for turning the fastening screw when engaging and removing the grinding wheel.

Die Erfindung ist nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.

  • Fig. 1 zeigt schematisch in schaubildlicher Dar= stellung den grundsätzlichen Aufbau einer erfindungs= gemässen Kantenschleifmaschine; Fig. 2 zeigt in grösserem Masstab eine schematische Draufsicht auf die Bearbeitungsstelle eines plattenförmigen Werk= stücks; Fig. 3 zeigt einen vertikalen, etwa in der Längsrichtung des Auslegerarms nach Fig. 1 verlaufen= den Schnitt durch das Schleifaggregat; Fig. 4 und 5 sind Teilschnitte nach den Linien IV-IV und V-V der Fig. 3.
The invention is explained below with reference to an embodiment shown in the drawing.
  • 1 shows a diagrammatic illustration of the basic structure of an edge grinding machine according to the invention; Fig. 2 shows on a larger scale a schematic plan view of the processing point of a plate-shaped workpiece; Fig. 3 shows a vertical, approximately in the longitudinal direction of the cantilever arm of Figure 1 = the section through the grinding unit; 4 and 5 are partial sections along the lines IV-IV and VV of FIG. 3rd

Die dargestellte Kantenschleifmaschine ist insbesondere zum Abfasen bzw. Abschrägen der scharfen Kanten von Glas= scheiben, Glasplatten, Steinplatten, od. dgl. bestimmt und besteht aus einem Ständer A, der an seinem oberen Ende eine Spannvorrichtung für die in waagerechter Stellung liegende Glasplatte D aufweist. In dem dargestellten, bevorzugten Ausführungsbeispiel besteht diese Spannvorrichtung aus mehreren, nach oben gerichteten Saugspannern C, die zum Teil direkt auf dem oberen Ständerende und zum Teil auf davon seitlich abstehenden, waagerecht verschwenkbaren Armen B vorgesehen sind. Die Glasplatte D liegt auf diesen in einer waagerechten Ebene ausgerichteten Saugspannern C und wird davon durch Saugzug festgehalten. Der seitlich über den ganzen Glasplattenumfang vorspringende Randteil der festgespannten Glasplatte D mit der zu bearbeitenden Kante D' ist sowohl von oben als auch von unten frei zu= gänglich.The edge grinding machine shown 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 an upper end Has clamping device for the glass plate D lying in a horizontal position. In the preferred embodiment shown, this clamping device consists of a plurality of suction clamps C pointing upwards, which are provided partly directly on the upper end of the stand and partly on horizontally pivotable arms 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 projecting laterally over the entire glass plate circumference with the edge D 'to be machined is freely accessible both from above and from below.

Ein waagerechter, radial zum Ständer A gerichteter Ausleger= arm E ist um den Ständer A herum zumindest um volle 360° drehbar gelagert und trägt einen auf dem Auslegerarm E vom und zum Ständer A, d.h. von und zu der darauf festge= spannten Glasplatte D verschiebbaren Schlitten oder Wagen F. Auf diesem Schlitten bzw. Wagen F ist ein Schleifaggregat 1 angeordnet, das eine vorzugsweise topf-, teller- oder ring= förmige, den Randteil der Glasplatte D übergreifende Schleifscheibe M aufweist. Ausserdem ist am Schlitten M eine Gegendruckrolle R1 drehbar gelagert, die die Glasplatte D im Arbeitsbereich der Schleifscheibe M unterstützt.A horizontal arm = arm E, directed radially to the stand A, is rotatably mounted at least 360 ° around the stand A and carries one on the arm E from and to the stand A, i.e. from and to the slide plate or carriage F slidable thereon on the clamped glass plate D. 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 overlapping the edge part of the glass plate D. having. In addition, a counter-pressure roller R1 is rotatably mounted on the slide M and supports the glass plate D in the working area of the grinding wheel M.

Das·Schleifaggregat 1 besteht aus einem Gehäuse 2, das eine etwa vertikale Schleifspindel 6 und den zur Schleifspindel achsparallelen Antriebsmotor 10 enthält. Die Schleifspindel 6 ist mit Hilfe von Kugellagern (4) und einer Abstandshülse 5 in einer äusseren, koaxialen Spindelhülse 3 drehbar gelagert und wird vom Hydraulikmotor 10 über einen Flachriemen 8, der eine auf der Motorwelle befestigte Riemenscheibe 9 und eine auf dem oberen Ende der Schleifspindel 6 befestigte Riemenscheibe 7 angetrieben. Die beiden Riemenscheiben 7, 9 sind verhältnismässig breit, insbesondere als Riementrommeln ausgebildet, um die auf und-ab gehende Verschiebung der Schleifspindel 6 gegenüber dem Gehäuse 2 bzw. dem daran befestigten-Antriebsmotor 10 zu ermöglichen.The grinding unit 1 consists of a housing 2 which contains an approximately vertical grinding spindle 6 and the drive motor 10 which is parallel to the grinding spindle. The grinding spindle 6 is by means of ball bearings (4) and a spacer sleeve 5 is rotatably supported in an outer, coaxial spindle sleeve 3 and is driven by the hydraulic motor 10 via a flat belt 8, which has a belt pulley 9 fastened to the motor shaft and a belt pulley 7 fastened to the upper end of the grinding spindle 6. The two pulleys 7, 9 are relatively wide, in particular designed as belt drums, in order to enable the upward and downward displacement of the grinding spindle 6 relative to the housing 2 or the drive motor 10 attached to it.

Die Spindelhülse 3 ist im Gehäuse 2 des Schleifaggregats auf und ab verschiebbar geführt und kann mit Hilfe eines Handhebels 16 bewegt werden. Der Handhebel 16 sitzt dabei fest auf einer Welle 15, mit der ein Paar von nebeneinander angeordneten, gegenseitig abgefederten Zahnsektoren 14, 114 drehfest verbunden ist. Diese Zahnsektoren 14, 114 stehen mit einer äusseren, achsparallelen Verzahnung 103 der Spindelhülse 3 im Eingriff. Die Spindelhülse 3 kann mit Hilfe einer radial gerichteten Klemmschraube 27 mit Hebel= griff im Gehäuse 2 festgesetzt werden.The spindle sleeve 3 is 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.

Die Schleifscheibe M ist an einem darüberliegenden Flansch 11 befestigt, der mit einem oberen mittleren Ansatz 111 in eine kopfseitig im unteren Ende der Schleifspindel 6 vorge= sehene Zentrierbohrung eingreift. Die Schleifscheibe M ist dabei an der Schleifspindel 6 mit Hilfe einer Schraube 13 befestigt, die von oben koaxial durch die Schleifspindel 6 gesteckt und in eine entsprechende Gewindebohrung des mittleren.Flanschansatzes 111 geschraubt ist. Der Mehrkant= kopf 113 der Befestigungsschraube 13 springt vom oberen Kopfende der Schleifspindel 6 in eine mittlere Aussparung der zugeordneten Riemenscheibe 7 vor und ist von oben fren zugänglich. Koaxial zur Schleifspindel 6 und infolgedessen auch koaxial zur Befestigungsschraube 13 ist in der oberen Abschlusswand des Gehäuses 2 ein rohrförmiger, zum Mehr= kantkopf 113 der Befestigungsschraube 13 passender Steck= schlüssel 25 frei drehbar gelagert, der von aussen mit Hilfe eines Drehknopfs 26, Drehgriffs od. dgl. gedreht werden kann. Mit Hilfe des Handhebels 16, der Zahnsektoren 14, 114 und der Verzahnung 103 kann die Spindelhülse 3 mit der Schleifspindel 6 so weit angehoben werden, dass der Mehrkantkopf 113 der Befestigungsschraube 13 von unten in den ortsfest gelagerten, rohrförmigen Steckschlüssel 25 eingreift. In dieser obersten Stellung der Schleifspindel 6 kann - nach Festsetzung der Spindelhülse 6 mit Hilfe der Klemmschraube 27 - die Schleifscheibe M ab- bzw. angebaut werden, wobei die Befestigungsschraube 13 mit Hilfe des oberen, äusseren Drehgriffs 26 und des damit verbundenen, rohrförmigen Steckschlüssels 25 gedreht, d.h. aus- und eingeschraubt wird.The grinding wheel M is attached to an overlying flange 11, which engages with an upper middle shoulder 111 in a head side provided in the lower end of the grinding spindle 6 = see center hole. 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 middle flange attachment 111. The polygon = head 113 of the fastening screw 13 jumps from the top Head end of the grinding spindle 6 in a central recess of the associated pulley 7 and is accessible from above. Coaxial to the grinding spindle 6 and consequently also coaxial to the fastening screw 13, a tubular socket 25 suitable for the polygonal head 113 of the fastening screw 13 is freely rotatably mounted in the upper end wall of the housing 2 and can be rotated from the outside with the aid of a rotary knob 26, rotary handle or can be rotated. 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. In this uppermost position of the grinding spindle 6, after the spindle sleeve 6 has been fixed with the aid of the clamping screw 27, the grinding wheel M can be removed or attached, the fastening screw 13 using the upper, outer rotary handle 26 and the tubular socket wrench 25 connected therewith turned, that is, unscrewed and screwed in.

Von dem Abwärtshub der Spindelhülse 3 mit der Schleifspindel 6 hängt die Schnitt- bzw. Schleiftiefe ddr Schleifscheibe M beim Abfasen bzw. Abschrägen der Glasplattenkante D' ab. Der Abwärtshub der Schleifspindel wird infolgedessen je nach der gegebenen Stärke der Glasplatte D bzw. je nach der gewünschten Breite der Kantenabschrägung ein- und nachstell= bar begrenzt. Zu diesem Zweck ist im Gehäuse 2 des Schieilf= aggregats 1 eine zur Schleifspindel 6 parallele Stangt 18 verschiebbar gelagert, die mit ihrem oberen, dürneren Ende 218 aus dem Gehäuse 2 herausgeführt ist. Die Stange 18 weist eine achsparallele Verzahnung 118 auf, mit der ein of der Welle 15 des Handhebels 16 befestigtes Zahnrad 17 im Eingriff steht. Das obere Ende 218 der Stange 18 wird von einem Anschlagkopf 20 übergriffen, der auf der oberen Aussenseite des Gehäuses 2 um eine zu der Stange 18 parallele Achse 21 drehbar gelagert ist und einen Kranz von achs= parallelen, auf dem selben Teilkreis angeordneten Anschlag= schrauben 19 trägt. Diese Anschlagschrauben 19 sind in durchgehenden, vertikalen Bohrungen des Anschlagkopfes 20 geschraubt und springen auf dessen Unterseite vor. Durch Verdrehung des Anschlagkopfes 20 können die Anschlag= schrauben 19 einzeln nacheinander über die Stange 18 etwa koaxial dazu eingestellt werden. Die entsprechende schritt= weise Drehung des Anschlagkopfes 20 wird mit Hilfe einer Rastkugel 22 gewährleistet, die unter Einwirkung einer Feder 23 in zugeordnete, entsprechend der Winkelabstände zwischen den Anschlagschrauben 19 angeordnete Rastvertiefungen 24 eingreift. Die federbelastete Rastkugel 22 kann z.B. im Anschlagkopf 20 gelagert sein, während die Rastvertiefungen 24 in der oberen Aussenfläche des Gehäuses 2 vorgesehen sind. Es ist jedoch auch eine umgekehrte Anordnung möglich.The cutting or grinding depth ddr grinding wheel M depends on the downward stroke of the spindle sleeve 3 with the grinding spindle 6 when chamfering or chamfering the glass plate edge D '. The downward stroke of the grinding spindle is consequently limited and adjusted depending on the given thickness of the glass plate D or depending on the desired width of the edge bevel. For this purpose, a rod 18 parallel to the grinding spindle 6 is slidably mounted in the housing 2 of the Schieilf = aggregate 1, the upper, thinner end 218 is led out of the housing 2. The rod 18 has an axially parallel toothing 118, with which a gear 17 fastened to the shaft 15 of the hand lever 16 is in engagement. The upper end 218 of the rod 18 is overlapped by a stop head 20 which is rotatably mounted on the upper outer side of the housing 2 about an axis 21 parallel to the rod 18 and screw a ring of axles = parallel stop arranged on the same pitch circle 19 wears. These stop screws 19 are screwed into continuous, vertical bores of the stop head 20 and project on the underside thereof. By turning the stop head 20, the stop screws 19 can be set individually one after the other via the rod 18 approximately coaxially therewith. The corresponding step = wise rotation of the stop head 20 is ensured with the aid of a detent ball 22 which, under the action of a spring 23, engages in detent recesses 24 which are arranged according to the angular distances between the stop screws 19. The spring-loaded locking ball 22 can be mounted, for example, in the stop head 20, while the locking recesses 24 are provided in the upper outer surface of the housing 2. However, an inverted arrangement is also possible.

Beim Absenken der Spindelhülse 3 zusammen mit der Schleif= spindel 6 durch Betätigung des Handhebels 16, wird die Stange 18 in entgegengesetzter Richtung, d.h. nach oben verschoben, wobei sie am Ende der Abwärtsbewegung der Schleifspindel 6 gegen die über das obere Stangenende 218 eingestellte Anschlagschraube 19 stösst und dadurch den Abwärtshub der Schleifspindel begrenzt. Die einzelnen Anschlagschrauben 19 können z.B. so eingestellt werden, dass sie je nach den verschiedenen Stärken der zu bearbei= tenden Glasplatten D verschieden weit nach unten vom Anschlagkopf 20 vorspringen und infolgedessen entsprechend unterschiedliche Abwärtshübe der Schleifspindel 6 be= stimmen. Bei Änderungen der Stärke der zu bearbeitenden Glasplatten D braucht nur der Anschlagkopf 20 verdreht und die der neuen Plattenstärke entsprechende Anschlagschraube 19 koaxial über die Stange 18 gebracht zu werden. Die Breite dei Abfasung bsw. der Abschrägung der Plattenkante D' kann durch Drehung der einzelnen Anschlagschrauben 19 ein- bzw. nachgestellt werden.When lowering the spindle sleeve 3 together with the grinding spindle 6 by actuating the hand lever 16, the rod 18 is moved in the opposite direction, ie upwards, and at the end of the downward movement of the grinding spindle 6 against the stop screw 19 set via the upper rod end 218 pushes and thereby limits the downward stroke of the grinding spindle. The single ones Stop screws 19 can be set, for example, so that depending on the different thicknesses of the glass plates D to be machined, they project differently downwards from the stop head 20 and consequently determine different downward strokes of the grinding spindle 6. When the thickness of the glass plates D to be processed changes, only 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 bevelling of the plate edge D 'can be adjusted or adjusted by rotating the individual stop screws 19.

Das Gehäuse 2 des Schleifaggregats 1 ist mit einem unteren kreisbogenförmigen Wandabschnitt 28 auf einem entsprechenden, oberen, kreisbogenförmigen Wandabschnitt 30 eines darunter= liegenden, kastenförmigen Zwischenhalters 34 gelagert und kann infolgedessen gegenüber dem Zwischenhalter 34 um eine durch den Krümmungsmittelpunkt der beiden Wandabschnitte 28, 30 etwa parallel zur Längsachse des Auslegerarms E verlaufende Schwenkachse 29 begrenzt verschwenkt werden. Die Schwenkachse 29 liegt etwa in der unteren Kopffläche der Schleifscheibe M und schneidet dabei die Drehachse der Schleifscheibe M, wie insbesondere in Fig. 5 dargestellt ist. In dem oberen kreisbogenförmigen Wandabschnitt 30 des kastenförmigen Zwischenhalters 34 ist ein Gewindebolzen 31 festgelegt, der durch ein sich in der Schwenkrichtung des Schleifaggregats 1 erstreckendes Langloch 32 des anliesein den, unseren, kreisbogenförmigen Wandabschnitts 26 des Gehäuses 2 greift und im Inneren des Gehäuses 2 eine durch eine seitlicke Öffnung 33 zugängliche Schraubenmutter trägt. Mit Hilfe dieses Bolzens 31 kann das Gehäuse 2 des Schleif= gregats 1 in seiner gegenüber dem Zwischenhalter 34 ein= gestellten Winkelstellung festgesetzt werden.The housing 2 of the grinding unit 1 is supported with a lower circular wall section 28 on a corresponding upper, circular wall section 30 of a box-shaped intermediate holder 34 lying underneath and can consequently be about an intermediate through the center of curvature of the two wall sections 28, 30 pivot axis 29 extending parallel to the longitudinal axis of the extension arm E 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. 5. In the upper circular wall section 30 of the box-shaped intermediate holder 34, a threaded bolt 31 is fixed, which extends through an elongated hole 32 in the pivoting direction of the grinding unit 1 of the anlieein, our, circular wall section 26 of the housing 2 and one inside the housing 2 a side opening 33 accessible screw nut carries. With the help of this bolt 31, the housing 2 of the grinding unit 1 can be fixed in its angular position relative to the intermediate holder 34.

Der Zwischenträger 34 weist eine seitliche, kreisbogenförmig gekrümmte Wange 35 auf, die gegen einen entsprechenden, kreisbogenförmigen, vom Schlitten oder Wagen F nach oben vorspringenden Führungsflansch 36 anliegt. Infolgedessen kann der Zwischenhalter 34 zusammen mit dem Schleifaggregat 1 um eine durch den Krümmungsmittelpunkt der Wange 35 und des Führungsflansches 36 quer zur Längsachse des Auslegerarms E d.h. rechtwinklig zur Schwenkachse 29 verlaufende Schwenkachse 129 begrenzt verschwenkt werden. Auch diese Schwenkachse 129 liegt etwa in der unteren Kopffläche der Schleifscheibe M und geht durch die Drehachse der Schleifscheibe M, wie insbesondere aus Fig. 3 hervorgeht. Die kreisbogenförmige Wange 35 des Zwischenhalters 34 kann formschlüssig mit dem kreisbogenförmigen Führungsflansch 36 des Schlittens F verbunden und mit Hilfe einer handbetätigten Spann- bzw. Sperrvorrichtung 37 am Führungsflansch 36 fest= legbar sein.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. As a result, the intermediate holder 34, together with the grinding unit 1, can be moved about a through the center of curvature of the cheek 35 and the guide flange 36 transversely to the longitudinal axis of the cantilever arm E i.e. 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. 3. 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.

Mit Hilfe der beiden kreisbogenförmigen Führungen 28, 30 und 35, 36 kann das Schleifaggregat 1 derart um die beiden, rechtwinklig zueinander verlaufenden Schwenkachsen 29 und 129 verschwenkt und eingestellt werden, dass die untere, kreisringförmige Kopffläche der Schleifscheibe M die ge= wünschte bzw. erforderliche, gegenüber der Ebene der Glas= platte D geneigte Arbeitsstellung einnimmt, in der die Schleifscheibe M mit der abzuschrägenden Kante D' der Glas= platte D nur im Bereich eines begrenzten Abschnitts M' ihrer unteren, kreisringförmigen Kopffläche in Eingriff kommt.With the help of the two circular guides 28, 30 and 35, 36, 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, in such a way that the lower, circular head surface of the grinding wheel M is the desired or required one , assumes an inclined working position in relation to the plane of the glass = plate D, in which the Grinding wheel M with the beveled edge D 'of the glass = plate D only comes into engagement in the area of a limited section M' of its lower, circular head surface.

Auf dem'Schlitten F bzw. auf dem Zwischenhalter 34 ist eine Führungsrolle R1 mit vertikaler Achse frei drehbar und höheneinstellbar gelagert. Im Betrieb wird das Schleif= aggregat 1 z.B. in der Pfeilrichtung Z2 derart um die zu bearbeitende Glasplatte D umgeführt, dass die Führungsrolle R1 dauernd gegen die Umfangsfläche der Glasscheibe D anliegt. Dabei wird der Auslegerarm E um den Ständer A ge= dreht und der Schlitten F mit dem Schleifaggregat 1 auf dem Auslegerarm E verschoben. Die Schleifscheibe M wird mit Hilfe des Handhebels 16 von oben gegen die obere, scharfe Umfangskante D' der Glasplatte D gedrückt. Die Drehrichtung der Schleifscheibe M ist in Fig. 2 mit der Pfeilrichtung Z1 angegeben. Die einstellbare Begrenzung des Abwärtshubs der Schleifscheibe M gewährleistet eine gleichmässig breite Abschrägung D" der Glasplattenkante D'. Dem Arbeitsbereich M' der Schleifscheibe M wird Kühl- bzw. Spülflüssigkeit mit Hilfe eines durch die rohr- bzw. ringförmige Führungsrolle R1 durchgeführten Röhrchens 38 zugeführt.In the 'carriage F or on the intermediate holder 34, a guide roller is mounted freely rotatable and adjustable in height with a vertical axis R1. In operation, the grinding unit 1 is deflected around the glass plate D to be processed, for example in the direction of the arrow Z2, in such a way that the guide roller R1 constantly 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 in FIG. 2 with the arrow direction Z1. 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.

Claims (8)

1. Kantenschleifmaschine für plattenförmige Werkstücke, insbesondere Glas- oder Steinplatten od. dgl., mit einer auf dem oberen Ende eines Ständers angeordneten, insbesondere aus mehreren, waagerecht ausgerichteten Saugspannern be= stehenden Spannvorrichtung für das in waagerechter Stellung mit insbesondere allseitig frei vorspringenden Randteilen liegende, zu bearbeitende Werkstück, einem waagerecht radial zum Ständer gerichteten, um'diesen herum insbesondere um volle 360° drehbaren Auslegerarm und einem mit Hilfe eines Schlittens od. dgl. auf dem Auslegerarm vom und zum Werk= stück verschiebbar geführten Schleifaggregat, das eine insbesondere topf-, ring- oder tellerförmige, mit ihrer unteren Kopffläche zur Werkstückebene etwas geneigte, von oben gegen die Werkstückkante andrückbare Schleifscheibe, eine im Bereich der Schleifscheibe auf der unteren Werk= stückseite angeordnete Gegendruckrolle, eine seitlich gegen die Umfangsfläche des Werkstücks anliegende Führungsrolle und einen Antriebsmotor für die Schleifscheibe aufweist, dadurch gekennzeichnet, dass das Schleifaggregat (1) mit Hilfe einer ersten kreisbogenförmigen Führung (28, 30) um eine waagerechte, parallel zum Auslegerarm (E) d.h. radial zum Werkstück (D) verlaufende Schwenkachse (29) schwenkbar und feststellbar an einem Zwischenhalter (34) befestigt ist, der mit Hilfe einer zweiten kreisbogenförmigen Führung (35, 36) um eine waagerechte, quer zum Auslegerarm (A) d.h. tangential zum Werkstück (D) gerichtete Schwenkachse (129) schwenkbar und feststellbar auf dem in der Längsrichtung des Auslegerarms (E) verschiebbaren Schlitten (F) gelagert ist, wobei die Schleifscheibe (M) am unteren Ende kalen, von einem Hydraulikmotor (10) antreibbaren, in Schleifaggregat (1) durch Handbetätigung (16) auf und ab verschiebbaren Schleifspindel (6) befestigt und der Ab= wärtshub der Schleifspindel (6) durch mindestens einen einstellbaren Anschlag (19) begrenzt ist.1.Edge grinding machine for plate-shaped workpieces, in particular glass or stone plates 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 clamping device lying in a horizontal position with, in particular, freely projecting edge parts , workpiece to be machined, a horizontally radially directed to the stand, around which in particular a full 360 ° rotatable cantilever arm and with the help of a slide or the like on the cantilever arm from and to the workpiece = piece guided grinding unit, which in particular a pot -, ring or plate-shaped, with its lower head surface slightly inclined to the workpiece plane, which can be pressed against the workpiece edge from above, a counter-pressure roller arranged in the area of the grinding disc on the lower workpiece side, a guide roller lying laterally against the circumferential surface of the workpiece and an ant A friction motor for the grinding wheel, characterized in that the grinding unit (1) can be pivoted with the aid of a first arcuate guide (28, 30) about a horizontal pivot axis (29) running parallel to the cantilever arm (E), ie radially to the workpiece (D) is fixed to an intermediate holder (34) which can be pivoted with the help of a second circular-arc-shaped guide (35, 36) about a horizontal pivot axis (129) which is directed transversely to the cantilever arm (A), ie tangentially to the workpiece (D), and is fixable on the in the slide (F) which is displaceable in the longitudinal direction of the extension arm (E) is mounted, wherein the grinding wheel (M) kale at the lower end, can be driven by a hydraulic motor (10), can be moved up and down in the grinding unit (1) by manual actuation (16) and the grinding spindle (6) can move downwards by at least an adjustable stop (19) is limited. 2. Kantenschleifmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Schleifscheibe (M) an dem einem Ende der Schleifspindel (6) mit Hilfe einer von oben koaxial durch die Schleifspindel (6) gesteckten Befestigungsschraube (13) befestigt und der am oberen Ende der Schleifspindel vorgesehene Kopf (113) dieser Befestigungsschraube (13) in der obersten Endstellung der Schleifspindel (6) mit einem passenden, frei drehbar im Schleifaggregat (1) gelagerten Schraubenschlüssel (25) zum Verdrehen der Befestigungsschraube (13) beim An- und Abbauen der Schleifscheibe (M) in Eingriff kommt.2. Edge grinding machine according to claim 1, characterized in that the grinding wheel (M) at one end of the grinding spindle (6) with the aid of a fastening screw (13) which is inserted coaxially from above through the grinding spindle (6) and at the upper end of the grinding spindle Provide the head (113) of this fastening screw (13) in the uppermost end position of the grinding spindle (6) with a suitable wrench (25) which is freely rotatable in the grinding unit (1) for turning the fastening screw (13) when attaching and removing the grinding wheel ( M) engages. 3. Kantenschleifmaschine nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Schleifscheibe (M) an einem Flansch (11) befestigt ist, der mit einem oberen mittleren Ansatz (111) in eine entsprechende kopfseitige Zentrierbohrung im unteren Ende der Schleifspindel (6) eingreift und eine obere Gewindebohrung (12) für die Befestigungsschraube (13) aufweist.3. Edge grinding machine according to claim 1 and 2, characterized in that the grinding wheel (M) is attached to a flange (11) which engages with an upper middle shoulder (111) in a corresponding head-side center hole in the lower end of the grinding spindle (6) and has an upper threaded bore (12) for the fastening screw (13). 4. Kantenschleifmaschine nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Befestigungsschraube (13) einen oberen Mehrkantkopf (113) aufweist und der ortsfest drehbar gelagerte Schraubenschlüssel als rohrförmiger Steckschlüssel (25) mit äusserem Betätigungsgriff (26) ausgebildet ist.4. Edge grinding machine according to claim 1 and 2, characterized in that the fastening screw (13) has an upper polygonal head (113) and the stationary rotatable stored wrench is designed as a tubular socket wrench (25) with an outer actuating handle (26). 5.. Kantenschleifmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die nach oben gerichtete Welle des Hydraulik= motors (10) parallel zur Schleifspindel (6) angeordnet und mit dieser durch einen Flachriemen (8) und zwei trommel= artig verbreitete Riemenscheiben (7, 9) getrieblich ver= bunden ist.5 .. edge grinding machine according to claim 1, characterized in that the upward shaft of the hydraulic motor (10) is arranged parallel to the grinding spindle (6) and with this by means of a flat belt (8) and two drum-like pulleys (7, 9) is geared = connected. 6. Kantenschleifmaschine nach Anspruch 1, dadurch gekennzeichnet, dass einer synchron und proportional mit der Schleifspindel (6) durch deren Handantrieb (16) verschieb= baren Stange (18, 218) mehrere von einem Anschlagkopf (20) getragene, unterschiedlich einstellbare Anschläge (19) zugeordnet und durch Verdrehung des Anschlagkopfes (20) einzeln nacheinander in Anschlagstellung bringbar sind.6. Edge grinding machine according to claim 1, characterized in that a synchronously and proportionally with the grinding spindle (6) by its manual drive (16) displaceable bar (18, 218) a plurality of differently adjustable stops (19) carried by a stop head (20) ) and can be brought one after the other into the stop position by turning the stop head (20). 7. Kantenschleifmaschine nach Anspruch 6, dadurch gekenn= zeichnet, dass ein neben der Stange (18, 218) um eine dazu parallele Achse (21) drehbar gelagerter Anschlagkopf (20) mehrere, achsparallele, auf dem selben Teilkreis winkel= versetzt zueinander angeordnete, durchgehende Anschlag= schrauben (19) trägt und mit seinem die Anschlagschrauben (19) aufweisenden Bereich die Stange (18, 218) kopfseitig übergreift.7. Edge grinding machine according to claim 6, characterized in that an abutment head (20) rotatably mounted next to the rod (18, 218) about an axis (21) parallel to it, several axially parallel, on the same pitch circle = offset from each other, continuous stop = screws (19) and with its stop screws (19) area overlaps the rod (18, 218) on the head side. 8. Kantenschleifmaschine nach Anspruch 1, dadurch gekenn= zeichnet, dass durch die rohr- oder ringförmig ausgebil= dete Führungsrolle (R1) hindurch ein gegen den Arbeits= bereich (M') der Schleifscheibe (M) gerichtetes Röarchen (38) für die Spül- bzw. Kühlflüssigkeit durchgeführt int.8. Edge grinding machine according to claim 1, characterized in that through the tubular or ring-shaped guide roller (R1) through against the work = area (M ') of the grinding wheel (M) directed Röarchen (38) carried out for the rinsing or cooling liquid int.
EP81100704A 1980-02-08 1981-01-31 Edge grinding machine for plate-shaped workpieces, particularly plates of glass or stone Expired EP0033922B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100704T ATE4872T1 (en) 1980-02-08 1981-01-31 EDGE GRINDING MACHINE FOR PLATE-SHAPED WORKPIECES, ESPECIALLY GLASS OR STONE PLATES.

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

Family

ID=11146500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100704A Expired EP0033922B1 (en) 1980-02-08 1981-01-31 Edge grinding machine for plate-shaped workpieces, particularly plates of glass or stone

Country Status (3)

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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424815A1 (en) * 1989-10-23 1991-05-02 Z. BAVELLONI S.p.A. Automatic engraving machine, particularly for engraving the faces of plate-like elements in general and of glass plates in particular
EP0451333A2 (en) * 1990-03-29 1991-10-16 Tamglass Engineering Oy Apparatus for grinding the edge of a glass sheet
US5185959A (en) * 1990-03-29 1993-02-16 Tamglass Oy Apparatus for grinding the edge of a glass sheet
EP0703039A1 (en) * 1994-09-21 1996-03-27 Wolfgang Mayer Apparatus for machining the edges of a tombstone
ES2143347A1 (en) * 1996-07-10 2000-05-01 Crespillo Manuel Arjona Machine for polishing edges of pieces of marble
CN104907840A (en) * 2014-03-13 2015-09-16 罗姆股份有限公司 Spannfutter
CN107378734A (en) * 2017-09-12 2017-11-24 海盐星辰工具有限公司 A kind of spanner polishing machine burnishing device
CN116423331A (en) * 2023-06-14 2023-07-14 河北德航玻璃制品有限公司 Automatic conveying edge grinding machine for toughened glass

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625535C2 (en) * 1986-07-29 1994-05-11 Festo Kg Eccentric disc grinder
CN104400598A (en) * 2014-11-04 2015-03-11 无锡市华明化工有限公司 Improved grinding machine
CN113510577B (en) * 2021-04-25 2023-03-31 佛山市顺德区新时泰家具实业有限公司 Raw material pretreatment process for manufacturing leisure chair

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Publication number Priority date Publication date Assignee Title
DE466492C (en) * 1926-08-19 1928-10-06 Jacob Heinrich Bek Grinding flat facets on glass plates
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 (en) * 1957-01-25 1958-01-09 Prokasky & Bechtold O H G DEVICE FOR SANDING EDGES ON FLAT GLASS.
FR1307078A (en) * 1961-11-29 1962-10-19 Transportable apparatus for grinding the edges of slabs of compact material, particularly slabs of marble, glass or the like
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466492C (en) * 1926-08-19 1928-10-06 Jacob Heinrich Bek Grinding flat facets on glass plates
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 (en) * 1957-01-25 1958-01-09 Prokasky & Bechtold O H G DEVICE FOR SANDING EDGES ON FLAT GLASS.
FR1307078A (en) * 1961-11-29 1962-10-19 Transportable apparatus for grinding the edges of slabs of compact material, particularly slabs of marble, glass or the like
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 (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424815A1 (en) * 1989-10-23 1991-05-02 Z. BAVELLONI S.p.A. Automatic engraving machine, particularly for engraving the faces of plate-like elements in general and of glass plates in particular
EP0451333A2 (en) * 1990-03-29 1991-10-16 Tamglass Engineering Oy Apparatus for grinding the edge of a glass sheet
EP0451333A3 (en) * 1990-03-29 1992-03-04 Tamglass Oy Apparatus for grinding the edge of a glass sheet
US5185959A (en) * 1990-03-29 1993-02-16 Tamglass Oy Apparatus for grinding the edge of a glass sheet
EP0703039A1 (en) * 1994-09-21 1996-03-27 Wolfgang Mayer Apparatus for machining the edges of a tombstone
ES2143347A1 (en) * 1996-07-10 2000-05-01 Crespillo Manuel Arjona Machine for polishing edges of pieces of marble
CN104907840A (en) * 2014-03-13 2015-09-16 罗姆股份有限公司 Spannfutter
CN104907840B (en) * 2014-03-13 2018-08-28 罗姆股份有限公司 Chuck
CN107378734A (en) * 2017-09-12 2017-11-24 海盐星辰工具有限公司 A kind of spanner polishing machine burnishing device
CN116423331A (en) * 2023-06-14 2023-07-14 河北德航玻璃制品有限公司 Automatic conveying edge grinding machine for toughened glass
CN116423331B (en) * 2023-06-14 2023-08-11 河北德航玻璃制品有限公司 Automatic conveying edge grinding machine for toughened glass

Also Published As

Publication number Publication date
EP0033922A3 (en) 1982-03-10
EP0033922B1 (en) 1983-10-05
DE3161060D1 (en) 1983-11-10
ATE4872T1 (en) 1983-10-15

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