EP0396067B1 - Profile grinding device - Google Patents

Profile grinding device Download PDF

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Publication number
EP0396067B1
EP0396067B1 EP90108169A EP90108169A EP0396067B1 EP 0396067 B1 EP0396067 B1 EP 0396067B1 EP 90108169 A EP90108169 A EP 90108169A EP 90108169 A EP90108169 A EP 90108169A EP 0396067 B1 EP0396067 B1 EP 0396067B1
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EP
European Patent Office
Prior art keywords
tool holder
tool
grinding unit
profile grinding
unit according
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 - Lifetime
Application number
EP90108169A
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German (de)
French (fr)
Other versions
EP0396067A2 (en
EP0396067A3 (en
Inventor
Jürgen Dipl.-Ing. Heesemann
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.)
Karl Heesemann Maschinenfabrik GmbH and Co KG
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Karl Heesemann Maschinenfabrik GmbH and Co KG
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Publication date
Application filed by Karl Heesemann Maschinenfabrik GmbH and Co KG filed Critical Karl Heesemann Maschinenfabrik GmbH and Co KG
Priority to AT90108169T priority Critical patent/ATE98544T1/en
Publication of EP0396067A2 publication Critical patent/EP0396067A2/en
Publication of EP0396067A3 publication Critical patent/EP0396067A3/en
Application granted granted Critical
Publication of EP0396067B1 publication Critical patent/EP0396067B1/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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/002—Grinding heads
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/16—Machines or devices using grinding or polishing belts; Accessories therefor for grinding other surfaces of particular shape

Definitions

  • the invention relates to a profile grinding unit with a frame which a driven grinding belt revolves around rollers, two of which are arranged so that their connecting line is in the transport direction of a workpiece, and with at least one tool holder attached to the frame, to which a tool of the desired profile shape can be attached is that the grinding belt presses against the workpiece being transported past.
  • Such profile grinding units designed as belt grinding units are known. With their frame in which the deflection rollers for the sanding belt are fastened, they are regularly arranged on a transport route of a woodworking machine in such a way that they can grind the edges in the desired manner.
  • the deflecting rollers are arranged, for example, in the form of a triangle, an upper deflecting roller arranged symmetrically to the other two rollers being adjustable by means of a cylinder at a distance from the connecting line between the two other rollers in order to achieve a desired tension of the sanding belt. It is known to pivotally arrange the frames of the grinding units in order to vary the angle at which the grinding belt engages the workpiece.
  • the tools - also for the production of more complicated profile shapes - are designed in such a way that you can grind the complete profile shape if possible. The resulting grinding processes are not without problems.
  • DE-A-33 08 606 describes a profile grinding unit of the type mentioned at the beginning.
  • a tool holder As a tool holder, this has a piston which can be displaced linearly with a cylinder in the direction of the grinding belt and into which different grinding shoes can be inserted with a changing device.
  • the entire frame is rotatably mounted about an axis, and the adjustment of the inclination angle of the frame can be carried out automatically with the aid of an adjusting cylinder. Since the tool holder is designed to be non-rotatable relative to the frame, the angle of the frame to the workpiece is also determined by adjusting the angle of the frame to the workpiece.
  • DE-A-30 34 206 describes a profile grinding machine which consists of several grinding units. Each grinding unit has two grinding blocks arranged one behind the other, which are attached to a frame-like device.
  • the frame-like fastening of the grinding blocks can be detachably fastened in a machine frame in several angular positions, for which purpose ring segment-shaped holders are provided which have fastening bores arranged on a circular path.
  • the sanding blocks are coated with sandpaper, so the device is not a belt grinder.
  • the invention is based on the object of designing a profile grinding unit of the type mentioned at the outset in such a way that variable use is possible without major modifications and without great mechanical outlay.
  • a profile grinding unit of the type mentioned at the outset in that the tool holder is fastened to a holder which is fixed relative to the frame and has a contact surface which is arranged perpendicularly to the plane and direction of movement of the workpiece and that the holder and / or the tool holder is designed for releasable attachment of the tool holder in different angular positions.
  • the tool holder can thus be fastened in the profile grinding unit at different angular positions, so that the angular position of the tool can be changed without having to change the arrangement of the entire grinding unit. While the new setup of the grinding unit requires readjustment of the entire frame in three axes, the angle change for the tool holder can be carried out quickly and without great effort.
  • the adjustment of the tool holder can be used to set angular positions in relation to the workpiece, which under some circumstances cannot be achieved by adjusting the entire frame for reasons of space or construction.
  • the holder and / or the tool holder has a plurality of holes which are aligned with at least two holes of the tool or the holder for fastening the tool holder in different angular positions. In this way, simply by inserting screws, bayonet locks or the like. the tool holder (new) can be attached to the holder.
  • the arrangement according to the invention offers particular advantages if at least two tool holders are fastened in different angular positions in the frame of the profile grinding unit. This makes it possible to distribute the grinding process for a profile over two or more tool holders that engage the workpiece in different angular positions and grind profile sections. This makes the grinding process much easier to control, even with workpiece tolerances, and higher quality can be achieved.
  • the two tool holders can be fastened to a common holder arranged between them, or can be connected directly to one another in the conveying direction and fastened to one holder each on the sides facing away from one another.
  • the arrangement according to the invention can also be designed with a tool holder which is designed as a tool turret with several different tools, the axis of rotation of which - in contrast to conventional arrangements - lies parallel to the conveying direction.
  • the tool is attached to the tool holder with a connecting piece which can be pivoted in the direction of the angular adjustment.
  • This connector can also allow a displacement perpendicular to the longitudinal axis of the tool holder.
  • the connector can be used to fine-tune the tool relative to the workpiece.
  • the tool holder can preferably be adjusted relative to the holder on a circular arc.
  • a plurality of holes lie on an arc. It may be expedient if at least one of the at least two holes in the tool holder or the holder is an elongated hole.
  • both the tool holder and the holder have a plurality of holes in the form of hole patterns.
  • FIG. 1 shows an essentially triangular frame 1 of a profile grinding unit, on which two lower deflection rollers 2 are held parallel to a workpiece 3 and an upper deflection roller 4 arranged symmetrically thereto.
  • the two inclined legs 5 of the essentially triangular frame 1 are connected to one another by a cross member 6 running parallel to the workpiece 3.
  • a fastening tab 8 is screwed onto this crossbar and holds a pressure cylinder 7, the piston 9 of which is connected to the upper roller 4 and is therefore suitable for adjusting the tension of an abrasive belt 10 rotating around the three deflecting rollers 2, 4.
  • the upper deflection roller 4 is driven by means of a motor 11.
  • a bracket 13 is fastened to the crossmember 6 via a screw flange 12, which is perpendicular to the transport plane of the workpiece 3 and perpendicular to the transport direction of the workpiece 3, which is connected to the connecting line between the two lower deflection rollers 2 matches.
  • the tools 15, 15' carry.
  • the tools 15, 15 ' press the peripheral grinding belt 10 in the desired manner against the edge of the workpiece 3 and thus determine the grinding process.
  • the two tool holders 14, 14 ' are in different angular positions to the workpiece 3, as will be explained in more detail below.
  • FIG. 2 shows an illustration of a holder 13 which has a sickle-like attachment 16 with an arc-like arrangement of a plurality of holes 17.
  • the sickle-like approach 16 ' is much wider and has a plurality of holes 17 which form a sickle-like grid.
  • This bracket 13 'therefore allows a greater range of variation when attaching a tool holder 14, 14'.
  • Figure 4 shows a tool holder 14 which is screwed to the brackets 13, 13 '.
  • the tool holder 14 has two lateral lugs 18, each of which carries a hole 19, the spacing of which matches the spacing of the holes 17, as is illustrated in FIG. 7.
  • the side lugs 18 ', 18 ⁇ are designed so that one shoulder 18, three parallel to the longitudinal axis of the tool holder 14 a carries round holes 19, while the other side extension 18' with an elongated hole 19 'is equipped, which extends perpendicular to the longitudinal axis of the tool holder 14 a. Due to the elongated hole 19 ', this tool holder 14 a can be easily attached in the hole pattern of the crescent-shaped projection 16' of the bracket 13 'in different angular positions.
  • a large variation of the fastenings can be achieved with the tool holder 14 b, which is shown in Figure 6.
  • Figures 7 and 8 show an arrangement in which two tool holders 14, 14 'are screwed to a holder 13.
  • the associated tools 15, 15 'are fastened to the tool holders 14, 14' via connecting pieces 20 which pivot the tool 15, 15 'relative to the tool holder 14, 14' and, if appropriate, a lateral displacement perpendicular to the longitudinal axis of the tool holder 14, 14 ′ enable.
  • This allows a fine adjustment of the tool 15, 15 'relative to the workpiece after the previous rough adjustment by attaching the tool holder 14, 14' to the bracket 13.
  • the two tool holders 14, 14 ' are arranged on both sides on a common holder 13 arranged between them.
  • Figure 9 illustrates an analogous arrangement of two tool holders 14, 14 'in different angular positions, which are held with a smaller space in which they are held on the sides facing away from each other with their own bracket 13, which are located on a common mounting flange 12' .
  • an edge of a workpiece 3 can be machined with high quality by the two immediately successive tools 15, 15 'arranged in different angular positions, the two tools being held in a profile grinding unit.
  • the angle adjustment of the tool holder 14, 14 'in the plug-in system allows a quick change with high variability of the tool arrangements.

Abstract

A profile grinding device, with a tool holder 14, 14' which is fastened in a frame 1 and to which a grinding tool 15, 15' of the desired profile shape can be fastened, for machining workpieces 3 transported past the profile grinding device in a working plane permits quick arrangement of the tool 15, 15' in different angular positions owing to the fact that the tool holder 14, 14' is fastened to a mounting fixture 13, 13' with a bearing face 16, 16' arranged perpendicularly to the conveying plane and direction, and that the tool holder 14, 14' can be detachably fastened to the mounting fixture 13, 13' in various angular positions. Here, at least two tool holders 14, 14' can preferably be arranged in various angular positions in a frame 1 of the profile grinding device. <IMAGE>

Description

Die Erfindung betrifft ein Profilschleifaggregat mit einem Rahmen, den ein angetriebenes Schleifband um Rollen umläuft, von denen zwei so angeordnet sind, daß ihre Verbindungslinie in Transportrichtung eines Werkstücks steht, und mit wenigstens einem am Rahmen befestigten Werkzeughalter, an dem ein Werkzeug der gewünschten Profilform befestigbar ist, das das Schleifband gegen das vorbeitransportierte Werkstück drückt.The invention relates to a profile grinding unit with a frame which a driven grinding belt revolves around rollers, two of which are arranged so that their connecting line is in the transport direction of a workpiece, and with at least one tool holder attached to the frame, to which a tool of the desired profile shape can be attached is that the grinding belt presses against the workpiece being transported past.

Derartige als Bandschleifaggregate ausgebildete Profilschleifaggregate sind bekannt. Sie sind mit ihrem Rahmen, in dem die Umlenkrollen für das Schleifband befestigt sind, regelmäßig an einer Transportstrecke einer Holzbearbeitungsmaschine so angeordnet, daß sie die Kanten in der gewünschten Weise schleifen können. Die Umlenkrollen sind beispielsweise in Form eines Dreiecks angeordnet, wobei eine obere, symmetrisch zu den beiden anderen Rollen angeordnete Umlenkrollen mit Hilfe eines Zylinders im Abstand zu der Verbindungslinie zwischen den beiden anderen Rollen einstellbar ist, um eine gewünschte Spannung des Schleifbandes zu erreichen. Es ist bekannt, die Rahmen der Schleifaggregate schwenkbar anzuordnen, um den Winkel, unter dem das Schleifband am Werkstück angreift, zu variieren. Um mit einer möglichst geringen Anzahl von Profilschleifaggregaten auszukommen, sind die Werkzeuge - auch für die Herstellung komplizierterer Profilformen - so ausgelegt, daß sie möglichst die komplette Profilform schleifen können. Die sich hierbei ergebenden Schleifvorgänge sind nicht unproblematisch.Such profile grinding units designed as belt grinding units are known. With their frame in which the deflection rollers for the sanding belt are fastened, they are regularly arranged on a transport route of a woodworking machine in such a way that they can grind the edges in the desired manner. The deflecting rollers are arranged, for example, in the form of a triangle, an upper deflecting roller arranged symmetrically to the other two rollers being adjustable by means of a cylinder at a distance from the connecting line between the two other rollers in order to achieve a desired tension of the sanding belt. It is known to pivotally arrange the frames of the grinding units in order to vary the angle at which the grinding belt engages the workpiece. In order to get by with the smallest possible number of profile grinding units, the tools - also for the production of more complicated profile shapes - are designed in such a way that you can grind the complete profile shape if possible. The resulting grinding processes are not without problems.

In der DE-A-33 08 606 ist ein Profilschleifaggregat der eingangs erwähnten Art beschrieben. Dieses weist als Werkzeughalter einen in Richtung auf das Schleifband linear mit einem Zylinder verschiebbaren Kolben auf, in den mit einer Wechselvorrichtung unterschiedliche Schleifschuhe einschiebbar sind. Zur Herstellung einer gewünschten Neigung des Schleifschuhs relativ zur Kante des Werkstücks ist der gesamte Rahmen um eine Achse drehbar gelagert, wobei die Verstellung des Neigungswinkels des Rahmens automatisch mit Hilfe eines Stellzylinders erfolgen kann. Da der Werkzeughalter drehfest zum Rahmen ausgebildet ist, wird mit der Einstellung des Winkels des Rahmens zum Werkstück auch der Winkel des Schleifschuhs zum Werkstück festgelegt.DE-A-33 08 606 describes a profile grinding unit of the type mentioned at the beginning. As a tool holder, this has a piston which can be displaced linearly with a cylinder in the direction of the grinding belt and into which different grinding shoes can be inserted with a changing device. To produce a desired inclination of the grinding shoe relative to the edge of the workpiece, the entire frame is rotatably mounted about an axis, and the adjustment of the inclination angle of the frame can be carried out automatically with the aid of an adjusting cylinder. Since the tool holder is designed to be non-rotatable relative to the frame, the angle of the frame to the workpiece is also determined by adjusting the angle of the frame to the workpiece.

In der DE-A-30 34 206 ist eine Profilschleifmaschine beschrieben, die aus mehreren Schleifaggregaten besteht. Jedes Schleifaggregat weist zwei hintereinander angeordnete Schleifklötze auf, die an einer rahmenartigen Vorrichtung befestigt sind. Die rahmenartige Befestigung der Schleifklötze ist in einem Maschinenrahmen in mehreren Winkelstellungen lösbar befestigbar, wobei hierfür ringsegmentförmig ausgebildete Halter vorgesehen sind, die auf einer Kreisbahn angeordnete Befestigungsbohrungen aufweisen. Die Schleifklötze sind mit Sandpapier beschichtet, die Vorrichtung stellt somit keine Bandschleifmaschine dar.DE-A-30 34 206 describes a profile grinding machine which consists of several grinding units. Each grinding unit has two grinding blocks arranged one behind the other, which are attached to a frame-like device. The frame-like fastening of the grinding blocks can be detachably fastened in a machine frame in several angular positions, for which purpose ring segment-shaped holders are provided which have fastening bores arranged on a circular path. The sanding blocks are coated with sandpaper, so the device is not a belt grinder.

Der Erfindung liegt die Aufgabe zugrunde, ein Profilschleifaggregat der eingangs erwähnten Art so auszubilden, daß ein variabler Einsatz ohne große Umrüstungen und ohne großen maschinellen Aufwand möglich ist.The invention is based on the object of designing a profile grinding unit of the type mentioned at the outset in such a way that variable use is possible without major modifications and without great mechanical outlay.

Diese Aufgabe wird erfindungsgemäß bei einem Profilschleifaggregat der eingangs erwähnten Art dadurch gelöst, daß der Werkzeughalter an einer relativ zum Rahmen festen Halterung mit einer senkrecht zur Förderebene und -richtung des Werkstücks angeordneten Anlagefläche befestigt ist und daß die Halterung und/oder der Werkzeughalter zur lösbaren Befestigung des Werkzeughalters in verschiedenen Winkelstellungen ausgebildet ist.This object is achieved according to the invention in a profile grinding unit of the type mentioned at the outset in that the tool holder is fastened to a holder which is fixed relative to the frame and has a contact surface which is arranged perpendicularly to the plane and direction of movement of the workpiece and that the holder and / or the tool holder is designed for releasable attachment of the tool holder in different angular positions.

Erfindungsgemäß ist somit der Werkzeughalter in dem Profilschleifaggregat unter verschiedenen Winkelstellungen befestigbar, so daß die Winkelstellung des Werkzeugs veränderbar ist, ohne die Einrichtung des gesamten Schleifaggregats verändern zu müssen. Während die Neueinrichtung des Schleifaggregats eine Neueinstellung des gesamten Rahmens in drei Achsen erfordert, ist die Winkeländerung für den Werkzeughalter schnell und ohne großen Aufwand durchführbar. Darüber hinaus können durch die Verstellung des Werkzeughalters Winkelstellungen zum Werkstück eingestellt werden, die mit einer Verstellung des gesamten Rahmens aus Platz- oder Konstruktionsgründen unter Umständen nicht erreichbar sind.According to the invention, the tool holder can thus be fastened in the profile grinding unit at different angular positions, so that the angular position of the tool can be changed without having to change the arrangement of the entire grinding unit. While the new setup of the grinding unit requires readjustment of the entire frame in three axes, the angle change for the tool holder can be carried out quickly and without great effort. In addition, the adjustment of the tool holder can be used to set angular positions in relation to the workpiece, which under some circumstances cannot be achieved by adjusting the entire frame for reasons of space or construction.

In einer bevorzugten, die Geschwindigkeit der Winkeländerung unterstützenden Ausführungsform weist die Halterung und/oder der Werkzeughalter eine Mehrzahl von Löchern auf, die mit wenigstens zwei Löchern des Werkzeugs bzw. der Halterung zur Befestigung des Werkzeughalters in verschiedenen Winkelstellungen fluchten. Auf diese Weise kann durch einfaches Durchstecken von Schrauben, Bajonettverschlüssen o.ä. der Werkzeughalter (neu) an der Halterung befestigt werden.In a preferred embodiment which supports the speed of the angle change, the holder and / or the tool holder has a plurality of holes which are aligned with at least two holes of the tool or the holder for fastening the tool holder in different angular positions. In this way, simply by inserting screws, bayonet locks or the like. the tool holder (new) can be attached to the holder.

Die erfindungsgemäße Anordnung bietet besondere Vorteile, wenn in dem Rahmen des Profilschleifaggregats wenigstens zwei Werkzeughalter in unterschiedlichen Winkelstellungen befestigt sind. Dadurch ist es möglich, den Schleifvorgang für ein Profil auf zwei oder mehrere Werkzeughalter zu verteilen, die in unterschiedlichen Winkelstellungen an dem Werkstück angreifen und Profilabschnitte schleifen. Hierdurch wird der Schleifvorgang auch bei Werkstücktoleranzen wesentlich besser beherrschbar und es läßt sich eine höhere Qualität erzielen.The arrangement according to the invention offers particular advantages if at least two tool holders are fastened in different angular positions in the frame of the profile grinding unit. This makes it possible to distribute the grinding process for a profile over two or more tool holders that engage the workpiece in different angular positions and grind profile sections. This makes the grinding process much easier to control, even with workpiece tolerances, and higher quality can be achieved.

Die beiden Werkzeughalter können dabei an einer zwischen ihnen angeordneten gemeinsamen Halterung befestigt sein oder sich in Förderrichtung unmittelbar aneinanderanschließen und an den voneinander abgewandten Seiten an jeweils einer Halterung befestigt sein.The two tool holders can be fastened to a common holder arranged between them, or can be connected directly to one another in the conveying direction and fastened to one holder each on the sides facing away from one another.

Die erfindungsgemäße Anordnung läßt sich auch mit einem Werkzeughalter ausbilden, der als Werkzeugrevolver mit mehreren verschiedenen Werkzeugen ausgebildet ist, dessen Rotationsachse - im Unterschied zu herkömmlichen Anordnungen - parallel zur Förderrichtung liegt.The arrangement according to the invention can also be designed with a tool holder which is designed as a tool turret with several different tools, the axis of rotation of which - in contrast to conventional arrangements - lies parallel to the conveying direction.

Besonders in der Ausbildung der Befestigung zwischen Werkzeughalter und Halterung im Stecksystem kann es vorteilhaft sein, wenn das Werkzeug an dem Werkzeughalter mit einem in Richtung der Winkelverstellung verschwenkbaren Verbindungsstück befestigt ist. Dieses Verbindungsstück kann darüber hinaus eine Verschiebung senkrecht zur Längsachse des Werkzeughalters erlauben. Durch das Verbindungsstück läßt sich eine Feineinstellung des Werkzeugs relativ zum Werkstück vornehmen.Particularly in the design of the attachment between the tool holder and holder in the plug-in system, it can be advantageous if the tool is attached to the tool holder with a connecting piece which can be pivoted in the direction of the angular adjustment. This connector can also allow a displacement perpendicular to the longitudinal axis of the tool holder. The connector can be used to fine-tune the tool relative to the workpiece.

Vorzugsweise läßt sich der Werkzeughalter relativ zu der Halterung auf einem Kreisbogen verstellen. Bei der Ausbildung mit einem Stecksystem liegt eine Mehrzahl von Löchern auf einem Kreisbogen. Dabei kann es zweckmäßig sein, wenn von den wenigstens zwei Löchern des Werkzeughalters bzw. der Halterung wenigstens ein Loch ein Langloch ist.The tool holder can preferably be adjusted relative to the holder on a circular arc. When forming with a plug-in system, a plurality of holes lie on an arc. It may be expedient if at least one of the at least two holes in the tool holder or the holder is an elongated hole.

In einer alternativen Ausführungsform weisen sowohl der Werkzeughalter als auch die Halterung eine Mehrzahl von Löchern in Form von Lochrastern auf.In an alternative embodiment, both the tool holder and the holder have a plurality of holes in the form of hole patterns.

Die Erfindung soll im folgenden anhand von in der Zeichnung dargestellten ausführungsbeispielen näher erläutert werden. Es zeigen:

Figur 1 -
eine Aufsicht eines Profilschleifaggregats
Figur 2 -
eine Seitenansicht einer Ausführungsform einer Halterung als Einzelteil
Figur 3 -
eine Seitenansicht einer anderen Ausführungsform einer Halterung als Einzelteil
Figur 4 -
eine Seitenansicht eines Werkzeughalters als Einzelteil
Figur 5 -
eine Seitenansicht einer anderen Ausführungsform eines Werkzeughalters als Einzelteil
Figur 6 -
eine Seitenansicht einer dritten Ausführungsform eines Werkzeughalters als Einzelteil
Figur 7 -
eine Seitenansicht auf eine Anordnung mit zwei Werkzeughaltern
Figur 8 -
eine Draufsicht auf die Anordnung gemäß Figur 7 mit einer zentralen Halterung für die beiden Werkzeughalter
Figur 9 -
eine Draufsicht auf eine andere Anordnung mit zwei Werkzeughaltern, die jeweils an ihren voneinander abgewandten Seiten an einer Halterung befestigt sind.
The invention will be explained in more detail below with reference to exemplary embodiments shown in the drawing. Show it:
Figure 1 -
a supervision of a profile grinding unit
Figure 2 -
a side view of an embodiment of a holder as an individual part
Figure 3 -
a side view of another embodiment of a holder as a single part
Figure 4 -
a side view of a tool holder as a single part
Figure 5 -
a side view of another embodiment of a tool holder as a single part
Figure 6 -
a side view of a third embodiment of a tool holder as a single part
Figure 7 -
a side view of an arrangement with two tool holders
Figure 8 -
a plan view of the arrangement of Figure 7 with a central holder for the two tool holder
Figure 9 -
a plan view of another arrangement with two tool holders, each of which is attached to a holder on its sides facing away from one another.

Figur 1 zeigt einen im wesentlichen dreieckigen Rahmen 1 eines Profilschleifaggregates, an dem zwei untere Umlenkrollen 2 parallel zu einem Werkstück 3 und eine symmetrisch dazu angeordnete obere Umlenkrolle 4 gehalten sind. Die beiden schräg verlaufenden Schenkel 5 des im wesentlichen dreieckigen Rahmens 1 sind durch eine parallel zum Werkstück 3 laufende Traverse 6 miteinander verbunden. An diese Traverse ist eine Befestigungslasche 8 angeschraubt, die einen Druckzylinder 7 hält, dessen Kolben 9 mit der oberen Rolle 4 verbunden ist und somit zur Einstellung der Spannung eines um die drei Umlenkrollen 2,4 umlaufenden Schleifbandes 10 geeignet ist. Die obere Umlenkrolle 4 ist angetrieben mit Hilfe eines Motors 11. An der Traverse 6 ist über einen Schraubflansch 12 eine Halterung 13 befestigt, die senkrecht zur Transportebene des Werkstücks 3 und senkrecht zur Transportrichtung des Werkstücks 3, die mit der Verbindungslinie zwischen den beiden unteren Umlenkrollen 2 übereinstimmt, steht. An der Halterung sind zwei Werkzeughalter 14, 14′ befestigt, die Werkzeuge 15, 15′ tragen. Die Werkzeuge 15, 15′ drücken das umlaufende Schleifband 10 in der gewünschten Weise gegen die Kante des Werkstücks 3 und bestimmen somit den Schleifvorgang.FIG. 1 shows an essentially triangular frame 1 of a profile grinding unit, on which two lower deflection rollers 2 are held parallel to a workpiece 3 and an upper deflection roller 4 arranged symmetrically thereto. The two inclined legs 5 of the essentially triangular frame 1 are connected to one another by a cross member 6 running parallel to the workpiece 3. A fastening tab 8 is screwed onto this crossbar and holds a pressure cylinder 7, the piston 9 of which is connected to the upper roller 4 and is therefore suitable for adjusting the tension of an abrasive belt 10 rotating around the three deflecting rollers 2, 4. The upper deflection roller 4 is driven by means of a motor 11. A bracket 13 is fastened to the crossmember 6 via a screw flange 12, which is perpendicular to the transport plane of the workpiece 3 and perpendicular to the transport direction of the workpiece 3, which is connected to the connecting line between the two lower deflection rollers 2 matches. On the bracket, two tool holders 14, 14 'are attached, the tools 15, 15' carry. The tools 15, 15 'press the peripheral grinding belt 10 in the desired manner against the edge of the workpiece 3 and thus determine the grinding process.

Die beiden Werkzeughalterungen 14, 14′ stehen in unterschiedlichen Winkelstellungen zum Werkstück 3, wie unten noch näher erläutert wird.The two tool holders 14, 14 'are in different angular positions to the workpiece 3, as will be explained in more detail below.

Figur 2 zeigt eine Darstellung einer Halterung 13, die einen sichelartigen Ansatz 16 mit einer kreisbogenartigen Anordnung von einer Vielzahl von Löchern 17 aufweist. In dem Ausführungsbeispiel gemäß Figur 3 ist der sichelartige Ansatz 16′ wesentlich breiter und weist eine Vielzahl von Löchern 17 auf, die ein sichelartiges Raster bilden. Diese Halterung 13′ erlaubt daher eine größere Variationsbreite bei der Anbringung eines Werkzeughalters 14, 14′.FIG. 2 shows an illustration of a holder 13 which has a sickle-like attachment 16 with an arc-like arrangement of a plurality of holes 17. In the embodiment shown in Figure 3, the sickle-like approach 16 'is much wider and has a plurality of holes 17 which form a sickle-like grid. This bracket 13 'therefore allows a greater range of variation when attaching a tool holder 14, 14'.

Figur 4 zeigt einen Werkzeughalter 14, der an die Halterungen 13, 13′ anschraubbar ist. Der Werkzeughalter 14 weist zwei seitliche Ansätze 18 auf, die jeweils ein Loch 19 tragen, deren Abstand zu dem Abstand der Löcher 17 paßt, wie dies anhand der Figur 7 verdeutlicht ist.Figure 4 shows a tool holder 14 which is screwed to the brackets 13, 13 '. The tool holder 14 has two lateral lugs 18, each of which carries a hole 19, the spacing of which matches the spacing of the holes 17, as is illustrated in FIG. 7.

Bei dem in Figur 5 dargestellten Werkzeughalter 14 a sind die seitlichen Ansätze 18′, 18˝ so ausgebildet, daß der eine Ansatz 18, drei parallel zur Längsachse des Werkzeughalters 14 a ausgerichtete Rundlöcher 19 trägt, während der andere seitliche Ansatz 18˝ mit einem Langloch 19′ ausgestattet ist, das sich senkrecht zur Längsachse des Werkzeughalters 14 a erstreckt. Aufgrund des Langloches 19′ läßt sich dieser Werkzeughalter 14 a problemlos in dem Lochraster des sichelförmigen Ansatzes 16′ der Halterung 13′ in verschiedenen Winkelstellungen befestigen.In the tool holder 14 a shown in Figure 5, the side lugs 18 ', 18˝ are designed so that one shoulder 18, three parallel to the longitudinal axis of the tool holder 14 a carries round holes 19, while the other side extension 18' with an elongated hole 19 'is equipped, which extends perpendicular to the longitudinal axis of the tool holder 14 a. Due to the elongated hole 19 ', this tool holder 14 a can be easily attached in the hole pattern of the crescent-shaped projection 16' of the bracket 13 'in different angular positions.

Eine große Variationsmöglichkeit der Befestigungen ist mit dem Werkzeughalter 14 b zu erzielen, der in Figur 6 dargestellt ist. An dessen seitlichen Ansätzen 18 befinden sich zahlreiche, in Rasterform angeordnete Löcher 19.A large variation of the fastenings can be achieved with the tool holder 14 b, which is shown in Figure 6. There are numerous holes 19 arranged in a grid shape on its side lugs 18.

Bei allen dargestellten Werkzeughaltern 14, 14 a und 14 b ist die Befestigung an der Halterung 13, 13′ dadurch vorgesehen, daß zwei Schrauben oder sonstige stiftförmige Verbindungselemente durch zwei miteinanderfluchtende Löcher 17, 19 hindurchgesteckt werden.In all shown tool holders 14, 14 a and 14 b, the attachment to the holder 13, 13 'is provided in that two screws or other pin-shaped connecting elements are inserted through two aligned holes 17, 19.

Die Figuren 7 und 8 zeigen eine Anordnung, bei der an einem Halter 13 zwei Werkzeughalter 14, 14′ angeschraubt sind. Die zugehörigen Werkzeuge 15, 15′ sind an den Werkzeughaltern 14, 14′ über Verbindungsstücke 20 befestigt, die ein Verschwenken des Werkzeuges 15, 15′ gegenüber dem Werkzeughalter 14, 14′ und ggf. eine seitliche Verschiebung senkrecht zur Längsachse des Werkzeughalters 14, 14′ ermöglichen. Dadurch läßt sich eine Feineinstellung des Werkzeuges 15, 15′ gegenüber dem Werkstück nach der vorherigen Grobeinstellung durch die Befestigung des Werkzeughalters 14, 14′ an der Halterung 13 erreichen.Figures 7 and 8 show an arrangement in which two tool holders 14, 14 'are screwed to a holder 13. The associated tools 15, 15 'are fastened to the tool holders 14, 14' via connecting pieces 20 which pivot the tool 15, 15 'relative to the tool holder 14, 14' and, if appropriate, a lateral displacement perpendicular to the longitudinal axis of the tool holder 14, 14 ′ enable. This allows a fine adjustment of the tool 15, 15 'relative to the workpiece after the previous rough adjustment by attaching the tool holder 14, 14' to the bracket 13.

Wie Figur 8 verdeutlicht, sind die beiden Werkzeughalter 14, 14′ beidseitig an einer gemeinsamen, zwischen ihnen angeordneten Halterung 13 angeordnet.As illustrated in FIG. 8, the two tool holders 14, 14 'are arranged on both sides on a common holder 13 arranged between them.

Figur 9 verdeutlicht eine analoge Anordnung zweier Werkzeughalter 14, 14′ in unterschiedlichen Winkelstellungen, die mit einem kleineren Zwischenraum gehalten werden, in dem sie an den voneinander abgewandten Seiten jeweils mit einer eigenen Halterung 13 gehalten werden, die sich an einem gemeinsamen Befestigungsflansch 12′ befinden. Wie Figur 7 verdeutlicht, kann eine Kante eines Werkstücks 3 mit hoher Qualität durch die beiden, in unterschiedlichen Winkelstellungen angeordneten, unmittelbar aufeinanderfolgenden Werkzeuge 15, 15′ mit hoher Qualität bearbeitet werden, wobei die beiden Werkzeuge in einem Profilschleifaggregat gehalten sind. Die Winkelverstellung der Werkzeughalter 14, 14′ im Stecksystem erlaubt einen schnellen Wechsel bei hoher Variabilität der Werkzeuganordnungen.Figure 9 illustrates an analogous arrangement of two tool holders 14, 14 'in different angular positions, which are held with a smaller space in which they are held on the sides facing away from each other with their own bracket 13, which are located on a common mounting flange 12' . As illustrated in FIG. 7, an edge of a workpiece 3 can be machined with high quality by the two immediately successive tools 15, 15 'arranged in different angular positions, the two tools being held in a profile grinding unit. The angle adjustment of the tool holder 14, 14 'in the plug-in system allows a quick change with high variability of the tool arrangements.

Claims (11)

  1. Profile grinding unit having a frame (1) around which a driven grinding belt (10) circulates around rollers (2, 4), of which two are arranged such that their connection line lies in the transporting direction of a workpiece (3), and having at least one tool holder (14, 14') which is secured to the frame (1) and on which there can be secured a tool (15, 15') of the desired profile shape, which tool presses the grinding belt (10) against the workpiece transported past, characterized in that the tool holder (14, 14') is secured to a mounting (13, 13') which is fixed relative to the frame (1) by means of a bearing surface (16, 16') arranged perpendicular to the conveying plane and the conveying direction of the workpiece (3), and in that the mounting (13, 13') and/or the tool holder (14, 14') is constructed for detachably securing the tool holder (14, 14') in different angular positions.
  2. Profile grinding unit according to Claim 1, characterized in that the mounting (13, 13') and/or the tool holder (14, 14') have a plurality of holes (17, 19) which are flush with at least two holes of the tool holder (14, 14') or the mounting (13, 13') for securing the tool holder (14, 14') in different angular positions.
  3. Profile grinding unit according to Claim 1 or 2, characterized in that at least two tool holders (14, 14') are secured in the frame (1).
  4. Profile grinding unit according to Claim 3, characterized in that two tool holders (14, 14') are secured to a common mounting (13) arranged therebetween.
  5. Profile grinding unit according to Claim 3, characterized in that two tool holders (14, 14') are directly adjacent one another in the conveying direction and, at the sides remote from one another, are secured to a respective mounting (13, 13').
  6. Profile grinding unit according to one of Claims 1 to 5, characterized in that the tool holder is a tool revolver having a plurality of different tools (15) whereof the axis of rotation lies parallel to the conveying direction.
  7. Profile grinding unit according to one of Claims 1 to 6, characterized in that the tool (15, 15') is secured to the tool holder (14, 14') by means of a connection piece (20) which can be pivoted in the direction of the angular displacement.
  8. Profile grinding unit according to Claim 7, characterized in that the connection piece (20) can additionally be displaced translationally perpendicular to the longitudinal axis of the tool holder (14, 14').
  9. Profile grinding unit according to one of Claims 2 to 8, characterized in that the plurality of holes (17) lie on an arc of the mounting (13).
  10. Profile grinding unit according to one of Claims 2 to 9, characterized in that of the at least two holes (19, 19') of the tool holder (14 a) or the mounting at least one is an elongate hole (19').
  11. Profile grinding unit according to one of Claims 2 to 10, characterized in that both the tool holder (14 b) and the mounting (13') have a plurality of holes (17, 19) in the form of grids of holes.
EP90108169A 1989-05-03 1990-04-28 Profile grinding device Expired - Lifetime EP0396067B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90108169T ATE98544T1 (en) 1989-05-03 1990-04-28 PROFILE SANDING UNIT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914968A DE3914968A1 (en) 1989-05-03 1989-05-03 PROFILE GRINDING UNIT
DE3914968 1989-05-03

Publications (3)

Publication Number Publication Date
EP0396067A2 EP0396067A2 (en) 1990-11-07
EP0396067A3 EP0396067A3 (en) 1991-03-27
EP0396067B1 true EP0396067B1 (en) 1993-12-15

Family

ID=6380233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108169A Expired - Lifetime EP0396067B1 (en) 1989-05-03 1990-04-28 Profile grinding device

Country Status (3)

Country Link
EP (1) EP0396067B1 (en)
AT (1) ATE98544T1 (en)
DE (2) DE3914968A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT507504B1 (en) 2008-10-29 2012-01-15 Josef Fischer ADJUSTABLE BELT GRINDING TOOL
CN116638419B (en) * 2023-07-19 2023-10-03 成都吉豪汽车部件有限公司 Automobile part polishing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034206A1 (en) * 1980-09-11 1982-04-22 Karl und Johannes Fried GmbH & Co KG, 7012 Fellbach Woodworking machine grinding profiled surfaces - has tool hinging on annular holder round support and conveyor
DE3308606A1 (en) * 1983-03-10 1984-09-13 Hornberger Maschinenbaugesellschaft mbH & Co KG, 7294 Schopfloch Belt grinding unit for grinding or edge-banding machines working in the through-feed mode

Also Published As

Publication number Publication date
DE3914968A1 (en) 1990-11-08
EP0396067A2 (en) 1990-11-07
EP0396067A3 (en) 1991-03-27
DE59003836D1 (en) 1994-01-27
ATE98544T1 (en) 1994-01-15

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