EP0700751B1 - Tool grinding machine - Google Patents
Tool grinding machine Download PDFInfo
- Publication number
- EP0700751B1 EP0700751B1 EP95113352A EP95113352A EP0700751B1 EP 0700751 B1 EP0700751 B1 EP 0700751B1 EP 95113352 A EP95113352 A EP 95113352A EP 95113352 A EP95113352 A EP 95113352A EP 0700751 B1 EP0700751 B1 EP 0700751B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turntable
- tool
- grinding machine
- machine according
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 68
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000008921 facial expression Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/60—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
-
- 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
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
-
- 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
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
Definitions
- the invention relates to a tool grinding machine according to Preamble of claim 1.
- Such tool grinding machines are basically since known for a long time and are used in particular for the repair of Cutting tools, i.e. for resharpening the cutting edges, the cutting edge geometry as such if possible to be restored.
- cutting tools in above sense should not only special tools with special Cutting geometry, but also standard tools in the form be understood by milling cutters, drills or countersinks.
- Such tool grinding machines are usually on one Machine stand constructed, all for the functional contains the required assemblies. This includes the placed horizontally on the machine stand Worktop, which is usually manufactured with high precision is and attachment options, especially in the form of Grooves, for other assemblies.
- a workpiece carrier is placed on the worktop, which holds the tool to be machined.
- the workpiece carrier is, for example, with a longitudinal and a transverse support equipped with a quick adjustment in both Allow lengthways and crossways.
- the Workpiece spindle on its own or with the longitudinal support coupled rotatably driven, so that any Combinations of a rotary and feed movement can be realized are.
- the tool is machined using a grinding tool, for example using a grinding wheel, which is interchangeably attached to a grinding head.
- the grinding head can be adjusted in several axes, so that the desired contour can be traced can.
- the grinding head is arranged vertically and with a height adjustment grinding column stored, the grinding column in turn by a vertical extending axis pivotally mounted on a turntable is.
- the turntable is also on the worktop put on, and so adjacent to the workpiece carrier in such a way that the grinding wheel be aligned with the workpiece can.
- Such a tool grinding machine of which the Invention is based, for example, in the prospectus Christen AG, Wabern-Bern, Switzerland "Christen tool grinding machines, AU-150 universal tool grinding machine ", pages 4 - 7, became known.
- the invention was therefore based on the problem of a tool grinding machine to further develop the type mentioned at the beginning, that they do not have the disadvantages described has more.
- a generic Tool grinding machine can be realized as possible is compact and has unobstructed access to Allows work area.
- the invention is based on the idea of using the turntable no longer attached the grinding column to the worktop but placed underneath in the machine stand to integrate. So is usually below the Countertop enough space to turn the turntable to be able to accommodate easily.
- To continue one To enable swiveling movement of the grinding head is the this supporting grinding column attached to a support arm that is attached on the one hand to the turntable, and on the other side is led out of the machine stand to the To be able to accommodate the grinding column. Accordingly, the grinding column attached outside the countertop, which makes the Optimal working area, i.e. unhindered from all sides is accessible. This makes the machine stand compact and be designed to save space, which is a significant Cost advantage over a comparable conventional one Execution can be achieved.
- the grinding wheel it is still possible to use the grinding wheel to position that the grinding or machining point exactly at the pivot point, i.e. on the axis of rotation of the turntable, lies. It is therefore possible to use radii, including full radii, easy to grind. Starting from the position at which the grinding wheel exactly on the longitudinal axis (rotation axis) the workpiece is aligned, can be a circular arc Swiveling movement to both sides are generated.
- the turntable is preferably mounted twice, which means that a previously unknown stability can be achieved. Concrete this is made possible by the fact that a bearing pin is provided which is guided centrally through the turntable and towering above and below. To the each protruding bolt ends are provided, the itself inside the machine stand and / or at the bottom of the Support the worktop.
- This type of storage increases the Resilience of the turntable compared to the usual, one-sided storage significantly, which increases the precision can increase.
- the grinding column be made more stable and / or additional assemblies, like motors for height or inclination adjustment of the grinding head, record, tape.
- Rolling bearings are preferably used as bearings, in particular Tapered roller bearings that are able to withstand the occurring Loads in the axial and radial directions at the same time take up very little space.
- the grinding column - and thus the grinding head - is preferred by a little more than 180 °, preferably by 190 °, so that even complex-shaped cutting contours are worn can be.
- An alignment mandrel is provided to facilitate the adjustment work provided that in a precisely defined position and coaxial to the axis of rotation of the turntable on the worktop is positionable. This allows the grinding wheel to be the highest Precision can be positioned at the pivot point.
- the tool grinding machine has a machine stand 2 in a known design, the all components or component groups including a coolant device 8 and a tool holder 6.
- the machine stand 2 carries a worktop 10 which is arranged horizontally and with a high-precision and flat ground Surface is provided.
- the worktop 10 extends essentially completely along the entire length of the Machine stand 2 and is symmetrical with respect to one running longitudinal groove 12.
- the groove 12 is used for Attachment of one of a longitudinal support 22 and a transverse support 24 formed cross slide, which is a workpiece carrier 20 records.
- the workpiece carrier 20 can both be moved lengthways and crossways.
- the Workpiece carrier 20 takes a workpiece 200 to be machined on which can be, for example, a milling cutter, the Cutting edges have to be reground.
- a grinding head 30 is provided, which on a Height-adjustable grinding column 32 in a manner known per se is stored.
- the grinding column runs vertically arranged at one end of a support arm 34.
- the opposite End of the support arm 34 is with a turntable 36 torsionally coupled, which is below the worktop 10 in the machine stand 2 in the described in more detail below Way is rotatably mounted.
- This allows the Grinding column 32 - and with it the grinding head 30 - by one vertical axis can be pivoted.
- the order of the turntable 36 is selected so that the axis of rotation intersects the axis of symmetry of the worktop 10 (vertical).
- the length of the support arm 34 is dimensioned so that it is the machine stand towered outward so far that the described pivoting movement is possible. Also is the machine stand 2 in the swivel range of the support arm 34 designed in the area of the worktop 10 so that starting from the described central position of the grinding head 30 or Grinding column 32 on both sides by a little more than 90 °, so it can be swiveled by a little more than 180 ° in total is. In the present exemplary embodiment, the Swivel range 190 ° and thus allows optimal accessibility of the workpiece 200 to be machined.
- Accessibility is compared to previously known tool grinding machines further improved by the fact that the work area, which is below the workpiece 200 to the surface the work surface 10 extends completely is undisturbed by any internals, in principle also allows processing from below. Design in particular adjustment and alignment work is particularly easy and thereby reduce machine downtimes.
- Abrasive particles, machining chips or the like can this configuration is not in the storage area of the turntable 36 arrive so that no pollution or There is a risk of damage. Rather, the abrasive particles or machining chips without difficulty from the Worktop 10 removable, a special cover for this area is therefore unnecessary.
- the turntable 36 can be actuated via a handwheel 38.
- a Mechanics not shown here allow the exact Positioning in the desired angular position in which the Turntable 36 via a clamping member 42 (Fig. 2) in itself is fixable in a known manner.
- the clamping member 42 is over a gag 40 easily actuated.
- All movements described above including The adjustment movements can not only be done manually but also run partly or fully automatically.
- motors are provided which for example the pivoting movement of the turntable 36 or cause the height adjustment of the grinding head 30.
- a gallows 5 is provided on the side of the machine stand 2, on which a control panel 4 for programming the control is appropriate. Depending on the expansion stage, a CNC machine can using simple, inexpensive building blocks will be realized.
- FIG. 2 shows a preferred mounting of the turntable 36 shown. It is a double bearing in which the turntable on both sides, i.e. above and is supported below. For this is a paragraph-like Bearing pin 50 is provided, the turntable 36th including the support arm 34 rotatably receives. Of the Bearing pin 50 projects upward above the support arm 34 and carries a tapered roller bearing 52 at the end. Opposite the tapered roller bearing 52 is inserted into the worktop 10.
- tapered roller bearing 54 attached, which is opposite in radial Direction is supported on a base plate 56 which on the machine stand 2 is attached. In the axial direction it will Tapered roller bearing 54 is held by an adjusting ring 58 which is made of placed axially below on the base plate 56 and with a Screw 60 is fixed.
- the clamping member 42 is provided, which means a screw 62 attached to the base plate 56 and on acts on the bearing pin 50.
- the actuation takes place in on known way through the outside of the machine stand 2nd attached gag 40. Also not shown the adjustment facial expressions with which a fine adjustment is made via the handwheel 38 the swivel angle is possible.
- FIG. 2 shows that the bearing pin 50 with its axis of rotation exactly in the through the longitudinal axis the worktop 10 arranged predetermined cutting plane is.
- an alignment mandrel 70 is inserted into the worktop 10, whose position is specified with high precision and the serves to align the grinding wheel 300.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
Die Erfindung betrifft eine Werkzeugschleifmaschine gemäß Oberbegriff des Anspruchs 1.The invention relates to a tool grinding machine according to Preamble of claim 1.
Derartige Werkzeugschleifmaschinen sind dem Grunde nach seit langem bekannt und dienen insbesondere zum Instandsetzen von Schneidwerkzeugen, d.h. zum Nachschärfen der Schneidkanten, wobei die Schneidengeometrie als solche nach Möglichkeit wieder hergestellt werden soll. Als Schneidwerkzeuge im obigen Sinn sollen nicht nur Sonderwerkzeuge mit spezieller Schneidengeometrie, sondern auch Standardwerkzeuge in Form von Fräsern, Bohrern oder Senkern verstanden werden.Such tool grinding machines are basically since known for a long time and are used in particular for the repair of Cutting tools, i.e. for resharpening the cutting edges, the cutting edge geometry as such if possible to be restored. As cutting tools in above sense should not only special tools with special Cutting geometry, but also standard tools in the form be understood by milling cutters, drills or countersinks.
Meist sind derartige Werkzeugschleifmaschinen auf einem Maschinenständer aufgebaut, der sämtliche für die Funktions erforderlichen Baugruppen enthält. Hierzu zählt zunächst die auf den Maschinenständer aufgesetzte und horizontal angeordnete Arbeitsplatte, die in der Regel hochpräzise gefertigt ist und Befestigungsmöglichkeiten, insbesondere in Form von Nuten, für weitere Baugruppen aufweist.Such tool grinding machines are usually on one Machine stand constructed, all for the functional contains the required assemblies. This includes the placed horizontally on the machine stand Worktop, which is usually manufactured with high precision is and attachment options, especially in the form of Grooves, for other assemblies.
Auf der Arbeitsplatte ist ein Werkstückträger aufgesetzt, der das zu bearbeitende Werkzeug aufnimmt. Der Werkstückträger ist beispielsweise mit einem Längs- und einem Quersupport ausgestattet, die eine Schnellverstellung sowohl in Längs- als auch in Querrichtung zulassen. Weiterhin ist die Werkstückspindel für sich oder aber mit dem Längssupport gekoppelt rotierend antreibbar, so daß an sich beliebige Kombinationen einer Dreh- und Vorschubbewegung realisierbar sind.A workpiece carrier is placed on the worktop, which holds the tool to be machined. The workpiece carrier is, for example, with a longitudinal and a transverse support equipped with a quick adjustment in both Allow lengthways and crossways. Furthermore, the Workpiece spindle on its own or with the longitudinal support coupled rotatably driven, so that any Combinations of a rotary and feed movement can be realized are.
Die Bearbeitung des Werkzeugs erfolgt mittels eines Schleifwerkzeugs, beispielsweise mittels einer Schleifscheibe, welches an einem Schleifkopf auswechselbar angebracht ist. Je nach Anforderung ist der Schleifkopf mehrachsig verstellbar, so daß der gewünschte Konturverlauf abgefahren werden kann. Hierzu ist der Schleifkopf an einer vertikal angeordneten und mit einer Höhenverstellung versehenen Schleifsäule gelagert, wobei die Schleifsäule ihrerseits um eine vertikal verlaufende Achse schwenkbar auf einem Drehteller angebracht ist. Der Drehteller ist ebenfalls auf der Arbeitsplatte aufgesetzt, und zwar benachbart zum Werkstückträger derart, daß die Schleifscheibe auf das Werkstück ausgerichtet werden kann. Eine solche Werkzeugschleifmaschine, von der die Erfindung ausgeht, ist beispielsweise in dem Prospekt der Christen AG, Wabern-Bern, Schweiz "Christen Werkzeugschleifmaschinen, AU-150 Universal-Werkzeugschleifmaschine", Seiten 4 - 7, bekanntgeworden.The tool is machined using a grinding tool, for example using a grinding wheel, which is interchangeably attached to a grinding head. Depending on the requirements, the grinding head can be adjusted in several axes, so that the desired contour can be traced can. For this purpose, the grinding head is arranged vertically and with a height adjustment grinding column stored, the grinding column in turn by a vertical extending axis pivotally mounted on a turntable is. The turntable is also on the worktop put on, and so adjacent to the workpiece carrier in such a way that the grinding wheel be aligned with the workpiece can. Such a tool grinding machine, of which the Invention is based, for example, in the prospectus Christen AG, Wabern-Bern, Switzerland "Christen tool grinding machines, AU-150 universal tool grinding machine ", pages 4 - 7, became known.
Obwohl sich derartige Werkzeugschleifmaschinen prinzipiell bewährt haben, weisen sie doch eine Reihe von Nachteilen auf. Insbesondere schränkt der hohe platzbedarf für die Schleifsäule einschließlich des diese tragenden Drehtellers den Arbeitsbereich erheblich ein, so daß es in der Regel erforderlich ist, einen Maschinenständer mit vergrößerter Arbeitsplatte zu verwenden. Dies macht nicht nur eine größere Stellfläche notwendig, sondern erhöht den Preis einer derartigen Werkzeugschleifmaschine erheblich. Weitere Nachteile ergeben sich dadurch, daß der Drehteller unmittelbar unterhalb der eigentlichen Bearbeitungszone liegt und somit einer erhöhten Verschmutzungs- und Beschädigungsgefahr durch abgeschleuderte Schleifpartikel und dgl. ausgesetzt ist. Vielfach sind deshalb spezielle Abdeckungen vorgesehen, die die Handhabung jedoch behindern.Although such tool grinding machines in principle proven, they have a number of disadvantages on. In particular, the high space requirement for the Grinding column including the turntable carrying it the work area considerably, so it usually is required a machine stand with enlarged Worktop to use. This doesn't just make a bigger one Footprint necessary, but increases the price of one such tool grinding machine considerably. Other disadvantages result from the fact that the turntable immediately is below the actual processing zone and thus an increased risk of contamination and damage flung abrasive particles and the like. Special covers are therefore often provided however, hinder handling.
Der Erfindung lag deshalb das Problem zugrunde, eine Werkzeugschleifmaschine der eingangs genannten Art derart weiterzuentwickeln, daß sie die geschilderten Nachteile nicht mehr aufweist. Insbesondere sollte eine gattungsgemäße Werkzeugschleifmaschine realisiert werden, die möglichst kompakt gebaut ist und eine ungehinderte Zugänglichkeit zum Arbeitsbereich zuläßt.The invention was therefore based on the problem of a tool grinding machine to further develop the type mentioned at the beginning, that they do not have the disadvantages described has more. In particular, a generic Tool grinding machine can be realized as possible is compact and has unobstructed access to Allows work area.
Gelöst wird dieses Problem bei einer gattungsgemäßen Werkzeugschleifmaschine mittels der im kennzeichnenden Teil des Anspruchs 1 angeführten Merkmale.This problem is solved with a generic tool grinding machine by means of the in the characteristic part of the Claim 1 cited features.
Vorteilhafte Ausgestaltungsformen sind in den Unteransprüchen beschrieben.Advantageous embodiments are in the subclaims described.
Die Erfindung basiert auf der Idee, den Drehteller mit der daran befestigten Schleifsäule nicht mehr auf die Arbeitsplatte aufzusetzen, sondern darunterliegend in den Maschinenständer zu integrieren. So ist in der Regel unterhalb der Arbeitsplatte ausreichend Platz zur Verfügung, um den Drehteller problemlos unterbringen zu können. Um weiterhin eine Schwenkbewegung des Schleifkopfs zu ermöglichen, ist die diesen tragende Schleifsäule an einem Tragarm befestigt, der einerseits am Drehteller befestigt ist, andererseits seitlich aus dem Maschinenständer herausgeführt ist, um die Schleifsäule aufnehmen zu können. Demnach ist die Schleifsäule außerhalb der Arbeitsplatte angebracht, wodurch der Arbeitsbereich optimal, d.h. ungehindert von allen Seiten zugänglich ist. Der Maschinenständer kann dadurch kompakt und platzsparend gestaltet werden, wodurch sich ein erheblicher Kostenvorteil gegenüber einer vergleichbaren herkömmlichen Ausführung erzielen läßt. Durch die ungehinderte Zugänglichkeit des Arbeitsbereichs ergeben sich ergonomische Vorteile, so daß auch ein schnellerer Werkstück- und/oder Werkzeugwechsel möglich ist. Weiterhin tritt keine Verschmutzung des Drehtellers durch Schleifpartikel oder dergleichen auf, da dieser unterhalb der Arbeitsplatte, und damit von dieser geschützt, angeordnet ist.The invention is based on the idea of using the turntable no longer attached the grinding column to the worktop but placed underneath in the machine stand to integrate. So is usually below the Countertop enough space to turn the turntable to be able to accommodate easily. To continue one To enable swiveling movement of the grinding head is the this supporting grinding column attached to a support arm that is attached on the one hand to the turntable, and on the other side is led out of the machine stand to the To be able to accommodate the grinding column. Accordingly, the grinding column attached outside the countertop, which makes the Optimal working area, i.e. unhindered from all sides is accessible. This makes the machine stand compact and be designed to save space, which is a significant Cost advantage over a comparable conventional one Execution can be achieved. Because of the unhindered accessibility of the work area result in ergonomic Advantages, so that a faster workpiece and / or Tool change is possible. There is also no pollution of the turntable by grinding particles or the like on because this is below the worktop, and so that it is protected and arranged.
Weiterhin ist es nach wie vor möglich, die Schleifscheibe so zu positionieren, daß der Schleif- bzw. Bearbeitungspunkt exakt im Drehpunkt, d.h. auf der Rotationsachse des Drehtellers, liegt. Somit ist es möglich, Radien, auch Vollradien, problemlos zu schleifen. Ausgehend von der Position, bei der die Schleifscheibe exakt auf die Längsachse (Rotationsachse) des Werkstücks ausgerichtet ist, kann eine kreisbogenförmige Schwenkbewegung nach beiden Seiten hin erzeugt werden.Furthermore, it is still possible to use the grinding wheel to position that the grinding or machining point exactly at the pivot point, i.e. on the axis of rotation of the turntable, lies. It is therefore possible to use radii, including full radii, easy to grind. Starting from the position at which the grinding wheel exactly on the longitudinal axis (rotation axis) the workpiece is aligned, can be a circular arc Swiveling movement to both sides are generated.
Bevorzugt ist der Drehteller zweifach gelagert, wodurch sich eine bisher nicht gekannte Stabilität erzielen läßt. Konkret wird dies dadurch möglich, daß ein Lagerbolzen vorgesehen ist, der zentral durch den Drehteller hindurchgeführt ist und diesen nach oben und nach unten hin überragt. An den jeweils überstehenden Bolzenenden sind Lager vorgesehen, die sich innerhalb des Maschinenständers und/oder unten an der Arbeitsplatte abstützen. Diese Art der Lagerung erhöht die Belastbarkeit des Drehtellers gegenüber der bisher üblichen, einseitigen Lagerung erheblich, wodurch sich die Präzision steigern läßt. Insbesondere kann auch die Schleifsäule stabiler ausgeführt sein und/oder zusätzliche Baugruppen, wie Motoren zur Höhen- oder Neigungsverstellung des Schleifkopfs, aufnehmen.The turntable is preferably mounted twice, which means that a previously unknown stability can be achieved. Concrete this is made possible by the fact that a bearing pin is provided which is guided centrally through the turntable and towering above and below. To the each protruding bolt ends are provided, the itself inside the machine stand and / or at the bottom of the Support the worktop. This type of storage increases the Resilience of the turntable compared to the usual, one-sided storage significantly, which increases the precision can increase. In particular, the grinding column be made more stable and / or additional assemblies, like motors for height or inclination adjustment of the grinding head, record, tape.
Bevorzugt werden als Lager Wälzlager verwendet, insbesondere Kegelrollenlager, die in der Lage sind, die auftretenden Belastungen in axialer und radialer Richtung bei gleichzeitig äußerst geringem Platzbedarf aufzunehmen.Rolling bearings are preferably used as bearings, in particular Tapered roller bearings that are able to withstand the occurring Loads in the axial and radial directions at the same time take up very little space.
Bevorzugt ist die Schleifsäule - und damit der Schleifkopf - um etwas mehr als 180°, vorzugsweise um 190°, schwenkbar, so daß auch kompliziert geformte Schneidenkonturen abgefahren werden können.The grinding column - and thus the grinding head - is preferred by a little more than 180 °, preferably by 190 °, so that even complex-shaped cutting contours are worn can be.
Zur Erleichterung der Einstellarbeiten ist ein Ausrichtdorn vorgesehen, der in exakt definierter Position und koaxial zur Rotationsachse des Drehtellers auf der Arbeitsplatte positionierbar ist. Damit kann die Schleifscheibe mit höchster Präzision im Drehpunkt positioniert werden.An alignment mandrel is provided to facilitate the adjustment work provided that in a precisely defined position and coaxial to the axis of rotation of the turntable on the worktop is positionable. This allows the grinding wheel to be the highest Precision can be positioned at the pivot point.
Die Erfindung wird nachstehend näher anhand des in den Figuren schematisch dargestellten Ausführungsbeispiels erläutert. Es zeigen
- Figur 1
- perspektivische Ansicht der Werkzeugschleifmaschine und
Figur 2- vergrößerte Schnittdarstellung der Lagerung des Drehtellers.
- Figure 1
- perspective view of the tool grinding machine and
- Figure 2
- enlarged sectional view of the storage of the turntable.
Die Werkzeugschleifmaschine besitzt einen Maschinenständer 2
in an sich bekannter Ausführung, der sämtliche Bauelemente
bzw. Bauteilgruppen einschließlich einer Kühlmitteleinrichtung
8 und einer Werkzeugablage 6 aufnimmt. Der Maschinenständer
2 trägt eine Arbeitsplatte 10, die horizontal angeordnet
und mit einer hochpräzise und plan geschliffenen
Oberfläche versehen ist. Die Arbeitsplatte 10 erstreckt sich
im wesentlichen vollständig über die gesamte Länge des
Maschinenständers 2 und ist symmetrisch in bezug auf eine
längs durchgehende Nut 12 ausgeführt. Die Nut 12 dient zur
Befestigung eines von einem Längssupport 22 und einem Quersupport
24 gebildeten Kreuzschlittens, der einen Werkstückträger
20 aufnimmt. Der Werkstückträger 20 kann damit sowohl
in Längs- als auch in Querrichtung verfahren werden. Der
Werkstückträger 20 nimmt ein zu bearbeitendes Werkstück 200
auf, welches beispielsweise ein Fräser sein kann, dessen
Schneidkanten nachgeschliffen werden müssen.The tool grinding machine has a
Hierfür ist ein Schleifkopf 30 vorgesehen, der an einer
Schleifsäule 32 in an sich bekannter Weise höhenverstellbar
gelagert ist. Die Schleifsäule ist vertikal verlaufend an
einem Ende eines Tragarms 34 angeordnet. Das gegenüberliegende
Ende des Tragarms 34 ist mit einem Drehteller 36
verdrehfest gekoppelt, welcher unterhalb der Arbeitsplatte
10 im Maschinenständer 2 in der nachstehend näher beschriebenen
Art und Weise drehbar gelagert ist. Hierdurch kann die
Schleifsäule 32 - und mit ihr der Schleifkopf 30 - um eine
vertikal verlaufende Achse verschwenkt werden. Die Anordnung
des Drehtellers 36 ist so gewählt, daß die Rotationsachse
die Symmetrieachse der Arbeitsplatte 10 (senkrecht) schneidet.
Damit kann die Schleifscheibe 300, die am Schleifkopf
30 anbringbar ist, exakt im Drehzentrum plaziert und in
bezug auf das zu bearbeitende Werkstück 200 zentral ausgerichtet
werden. Ausgehend von dieser Mittellage kann eine zu
beiden Seiten hin symmetrische Schwenkbewegung ausgeführt
werden, die insbesondere die Bearbeitung von Radien im
Stirnseitenbereich der Werkzeuge 200 erlaubt. For this purpose, a grinding
Die Länge des Tragarms 34 ist so bemessen, daß er den Maschinenständer
nach außen hin so weit überragt, daß die
beschriebene Schwenkbewegung ungehindert möglich ist. Auch
ist der Maschinenständer 2 im Schwenkbereich des Tragarms 34
im Bereich der Arbeitsplatte 10 so gestaltet, daß ausgehend
von der beschriebenen Mittellage der Schleifkopf 30 bzw. die
Schleifsäule 32 zu beiden Seiten um etwas mehr als 90°,
damit also um etwas mehr als 180° insgesamt, verschwenkbar
ist. Im vorliegenden Ausführungsbeispiel beträgt der
Schwenkbereich 190° und erlaubt damit eine optimale Zugänglichkeit
des zu bearbeitenden Werkstücks 200. Die Zugänglichkeit
ist gegenüber bisher bekannten Werkzeugschleifmaschinen
weiterhin dadurch verbessert, daß der Arbeitsbereich,
der sich unterhalb des Werkstücks 200 bis zur Oberfläche
der Arbeitsfläche 10 hin erstreckt, vollständig
ungestört durch etwaige Einbauten ist, prinzipiell also auch
eine Bearbeitung von unten her zuläßt. Insbesondere gestalten
sich Einstell- und Ausrichtarbeiten besonders einfach
und reduzieren dadurch die Stillstandszeiten der Maschine.The length of the
Schleifpartikel, Bearbeitungsspäne oder dgl. können bei
dieser Konfiguration nicht in den Lagerbereich des Drehtellers
36 gelangen, so daß insoweit keinerlei Verschmutzungs- oder
Beschädigungsgefahr besteht. Vielmehr sind die Schleifpartikel
oder Bearbeitungsspäne ohne Schwierigkeiten von der
Arbeitsplatte 10 entfernbar, eine besondere Abdeckung für
diesen Bereich ist somit entbehrlich.Abrasive particles, machining chips or the like can
this configuration is not in the storage area of the
Der Drehteller 36 ist über ein Handrad 38 betätigbar. Eine
hier nicht näher dargestellte Mechanik erlaubt die exakte
Positionierung in der gewünschten Winkelstellung, in der der
Drehteller 36 über ein Klemmorgan 42 (Fig. 2) in an sich
bekannter Weise fixierbar ist. Das Klemmorgan 42 ist über
einen Knebel 40 leicht betätigbar.The
Sämtliche, vorstehend beschriebenen Bewegungsabläufe einschließlich
der Einstellbewegungen können nicht nur manuell
sondern auch teil- oder vollautomatisch gesteuert ablaufen.
Hierzu sind (hier nicht dargestellt) Motoren vorgesehen, die
beispielsweise die Schwenkbewegung des Drehtellers 36 oder
die Höhenverstellung des Schleifkopfs 30 bewirken.All movements described above including
The adjustment movements can not only be done manually
but also run partly or fully automatically.
For this purpose (not shown here) motors are provided which
for example the pivoting movement of the
Seitlich am Maschinenständer 2 ist ein Galgen 5 vorgesehen,
an dem ein Bedienpult 4 zum Programmieren der Steuerung
angebracht ist. Je nach Ausbaustufe kann eine CNC-Maschine
unter Verwendung einfacher, preisgünstig erhältlicher Bausteine
realisiert werden.A
In Figur 2 ist eine bevorzugte Lagerung des Drehtellers 36
dargestellt. Es handelt sich um eine Doppellagerung, bei der
der Drehteller zu beiden Seiten hin, d.h. oberhalb und
unterhalb abgestützt ist. Hierfür ist ein absatzartig gestalteter
Lagerbolzen 50 vorgesehen, der den Drehteller 36
einschließlich des Tragarms 34 verdrehfest aufnimmt. Der
Lagerbolzen 50 überragt nach oben hin den Tragarm 34 und
trägt endseitig ein Kegelrollenlager 52. Gegenüberliegend
ist das Kegelrollenlager 52 in die Arbeitsplatte 10 eingesetzt.FIG. 2 shows a preferred mounting of the
Unterhalb des Drehtellers 36 ist ein weiteres Kegelrollenlager
54 angebracht, das sich gegenüberliegend in radialer
Richtung an einer Grundplatte 56 abstützt, welche am Maschinenständer
2 angebracht ist. In axialer Richtung wird das
Kegelrollenlager 54 von einem Stellring 58 gehalten, der von
unten axial auf die Grundplatte 56 aufgesetzt und mit einer
Schraube 60 fixiert ist. Below the
Durch die Verwendung der beiden Kegelrollenlager 52, 54 ist
ein besonders einfacher und platzsparender Aufbau der Doppellagerung
für den Drehteller 36 und dem schwenkarm 34
möglich. Dies erleichtert die Integration im Maschinenständer
2, gewährt gleichzeitig jedoch eine bislang unerreichte
Stabilität, auch im Falle von starken Belastungen.By using the two tapered
Zum Festlegen einer vorgegebenen Winkelstellung des Drehtellers
36 ist das Klemmorgan 42 vorgesehen, welches mittels
einer Schraube 62 an der Grundplatte 56 angebracht und auf
den Lagerbolzen 50 einwirkt. Die Betätigung erfolgt in an
sich bekannter Weise durch den außen am Maschinenständer 2
angebrachen Knebel 40. Ebenfalls nicht näher dargestellt ist
die Verstellmimik, mit der über das Handrad 38 eine Feineinstellung
des Schwenkwinkels möglich ist.For setting a predetermined angular position of the
Die Schnittdarstellung in Figur 2 zeigt, daß der Lagerbolzen
50 mit seiner Rotationsachse exakt in der durch die Längsachse
der Arbeitsplatte 10 vorgegebenen Schnittebene angeordnet
ist. In koaxialer Anordnung zum Lagerbolzen 50 ist
deshalb ein Ausrichtdorn 70 in die Arbeitsplatte 10 eingesetzt,
dessen Position hochpräzise vorgegeben ist und der
zum Ausrichten der Schleifscheibe 300 dient.The sectional view in Figure 2 shows that the bearing pin
50 with its axis of rotation exactly in the through the longitudinal axis
the
Das vorstehend beschriebene Ausführungsbeispiel soll lediglich zur Verdeutlichung des Prinzips des Anordnens eines Drehtellers unterhalb der Arbeitsplatte dienen, welches in gleicher Weise bei anderen Werkzeugmaschinen realisierbar ist. Hierbei ist an sich unbeachtlich, ob es sich um eine manuelle, halb- oder vollautomatische Werkzeugmaschine handelt, so daß auch insbesondere an sich beliebige Werkzeugträger zum Einsatz kommen können. The embodiment described above is only intended to clarify the principle of arranging one Serve turntables below the worktop, which in can be implemented in the same way with other machine tools is. It is irrelevant whether it is a manual, semi or fully automatic machine tool acts, so that in particular any tool carrier itself can be used.
- 22nd
- MaschinenständerMachine stand
- 44th
- Bedienpultcontrol panel
- 55
- Galgengallows
- 66
- WerkzeugablageTool storage
- 88th
- KühlmitteleinrichtungCoolant device
- 1010th
- ArbeitsplatteCountertop
- 1212th
- NutGroove
- 2020th
- WerkstückträgerWorkpiece carrier
- 2222
- LängssupportLongitudinal support
- 2424th
- QuersupportCross support
- 3030th
- SchleifkopfGrinding head
- 3232
- SchleifsäuleGrinding column
- 3434
- TragarmBeam
- 3636
- DrehtellerTurntable
- 3838
- HandradHandwheel
- 4040
- KnebelGag
- 4242
- KlemmorganClamping member
- 5050
- LagerbolzenBearing bolt
- 5252
- KegelrollenlagerTapered roller bearings
- 5454
- KegelrollenlagerTapered roller bearings
- 5656
- GrundplatteBase plate
- 5858
- StellringCollar
- 6060
- Schraubescrew
- 6262
- Schraubescrew
- 6464
- Schraubescrew
- 7070
- AusrichtdornAlignment mandrel
- 200200
- Werkstückworkpiece
- 300300
- SchleifscheibeGrinding wheel
Claims (10)
- Tool grinding machine comprisinga work platen (10) supported by a machine tool table (2) and disposed horizontally,a workpiece support (20) which receives a workpiece and is mounted on the work platen, and alsoa grinding head (30) which receives a grinding tool and which is mounted on a grinding column (32) which is vertically disposed and can be swivelled about a vertically extending axis by means of a turntable (36),
characterized in thatthe turntable (36) is disposed underneath the work platen (10) and integrated in the machine tool table (2), andthere is provided for the grinding column (32) a support arm (34) which is permanently joined at one end to the turntable (36) and is brought out laterally at the other end beyond the work platen (10) in such a way that the grinding column (32) mounted thereon can be swivelled around the work platen (10). - Tool grinding machine according to Claim 1, characterized in that the turntable (36) is mounted on a bearing bolt (50) which passes through it centrally and projects on both sides and which is held by bearings (52, 54) disposed both above and below the turntable (36).
- Tool grinding machine according to Claim 2, characterized in that the bearings (52, 54) are designed as rolling bearings.
- Tool grinding machine according to Claim 3, characterized in that the rolling bearings (52, 54) are designed as tapered roller bearings.
- Tool grinding machine according to one of the preceding claims, characterized by a clamping device (42) for fixing the turntable (36) or the bearing bolt (50).
- Tool grinding machine according to one of the preceding claims, characterized in that the turntable (36) has a swivelling range of at least somewhat more than 180°.
- Tool grinding machine according to Claim 6, characterized in that the swivelling range is approximately 190°.
- Tool grinding machine according to one of the preceding claims, characterized in that the axis of rotation (axis of swivelling) of the turntable (36) intersects the longitudinal axis of the work platen (10).
- Tool grinding machine according to Claim 8, characterized by an alignment mandrel (70) which can be mounted on the work platen (10).
- Tool grinding machine according to one of the preceding claims, characterized in that the turntable (36) is motor-drivable.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4431634 | 1994-09-06 | ||
| DE4431634A DE4431634C1 (en) | 1994-09-06 | 1994-09-06 | Machine tool grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0700751A1 EP0700751A1 (en) | 1996-03-13 |
| EP0700751B1 true EP0700751B1 (en) | 1998-02-25 |
Family
ID=6527486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95113352A Expired - Lifetime EP0700751B1 (en) | 1994-09-06 | 1995-08-25 | Tool grinding machine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5630747A (en) |
| EP (1) | EP0700751B1 (en) |
| KR (1) | KR100308798B1 (en) |
| CN (1) | CN1072997C (en) |
| AT (1) | ATE163386T1 (en) |
| DE (2) | DE4431634C1 (en) |
| ES (1) | ES2114714T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10012445A1 (en) * | 2000-03-15 | 2001-09-27 | Hubert Haller | Machining centre; has horizontal working plate and machining head for machining tool pivoting about vertical machining column by rotary plate and has carrying arms and holder device |
| DE10108094A1 (en) * | 2001-02-19 | 2002-09-12 | Reiling Gmbh | Machinetool table setdown for blank as edged tool has stop on setdown baseplate projecting to lock on to table stop plus clamps and arresters to hold setdown and workpiece in reproducible positions. |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2220776A1 (en) * | 1996-11-13 | 1998-05-13 | Allen Sommers | Eccentric grinder loading system |
| CN1081488C (en) * | 1998-03-30 | 2002-03-27 | 中国石油化工总公司 | Catalyst for ammonoxidating propylene to produce acrylonitrile |
| EP1113902A4 (en) | 1998-06-22 | 2002-04-24 | Tru Tech Systems Inc | Grinding machine, computer software to operate such a machine, and their uses therefor |
| US6234881B1 (en) * | 1998-08-06 | 2001-05-22 | Walter Ag | Grinding machine for forming chip-producing cutting tools |
| US6287177B1 (en) * | 1999-10-28 | 2001-09-11 | Conicity Technologies, Llc. | Method of and apparatus for high tolerance brush honing |
| ITRM20010677A1 (en) * | 2001-11-15 | 2003-05-15 | New Tech Srl | SANDING MACHINE FOR TUBULAR PIECES EXTREMITY SOCKETS USED FOR GENERAL GRINDING. |
| CN100511246C (en) * | 2002-03-18 | 2009-07-08 | 史蒂文·G·斯马尔什 | Computer controlled grinding machine |
| JP4013252B2 (en) * | 2003-03-27 | 2007-11-28 | 株式会社ジェイテクト | Hale processing method and processing apparatus |
| ITUD20110078A1 (en) * | 2011-06-03 | 2012-12-04 | Nordutensili S R L | "AUTOMATIC SHARPENING MACHINE FOR WOODEN CANDLE MILLS, PROGRAMMABLE WITH OPTICAL READING OF THE GEOMETRIC CHARACTERISTICS AND COMPUTERIZED SHARPENING". |
| CN103801994B (en) * | 2014-03-04 | 2016-02-10 | 泰州市利优精密机械有限公司 | Drill grinder |
| CN104385067A (en) * | 2014-10-07 | 2015-03-04 | 镇江市丹徒区甬润工具有限公司 | Automatic milling cutter machining grinder |
| CN104816204B (en) * | 2015-03-29 | 2017-10-27 | 林家豪 | A kind of universal cutter grinder |
| CN106625039A (en) * | 2015-11-02 | 2017-05-10 | 济南大学 | Turret type four-chuck tool sharpener |
| CN105690189A (en) * | 2016-03-14 | 2016-06-22 | 广西科技大学鹿山学院 | Six-degree of freedom multifunctional milling cutter sharpener |
| CN107378659A (en) * | 2017-08-11 | 2017-11-24 | 安徽德琳环保发展（集团）有限公司 | A kind of integrated rotating cutting element manufacturing equipment |
| CN107855838A (en) * | 2017-12-07 | 2018-03-30 | 苏州赛帕埃惜精机有限公司 | Machine tool grinder and machine tool lapping device |
| DE102019106974A1 (en) | 2018-03-28 | 2019-10-02 | WORF Service und Konstruktion GmbH | Machine tool for machining a workpiece |
| RU185996U1 (en) * | 2018-08-28 | 2018-12-26 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Брянский государственный технический университет" | CNC Grinding Machine Layout |
| CN112846955B (en) * | 2019-11-12 | 2022-02-18 | 王旭天 | Sharpening device for drill bit and milling cutter |
| CN115213775B (en) * | 2022-08-10 | 2023-08-04 | 无锡蒙力特科技有限公司 | Production process of a plastic object |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2458840A (en) * | 1942-05-16 | 1949-01-11 | Eklund Elias Napoleon | Grinding machine |
| DE1095158B (en) * | 1957-05-06 | 1960-12-15 | Guehring Gottlieb Fa | Twist drill tip grinding machine |
| DE1174647B (en) * | 1957-05-16 | 1964-07-23 | Christen & Co A G | Device for grinding drills and milling cutters |
| US3057122A (en) * | 1960-01-21 | 1962-10-09 | Cons Machine Tool Division Of | Drill grinder |
| FR1493661A (en) * | 1966-07-19 | 1967-09-01 | Renault | Method of sharpening twist drills and machine for its implementation |
| CH500047A (en) * | 1969-06-05 | 1970-12-15 | Mueri Jakob | Twist drill grinding machine |
| US3680263A (en) * | 1970-06-03 | 1972-08-01 | Huffman S E Corp | Method and apparatus for grinding end cutting tools |
| US3811233A (en) * | 1972-11-02 | 1974-05-21 | Cincinnati Milacron Inc | Quick change guard for tool and cutter grinder |
| DE2647360A1 (en) * | 1976-10-20 | 1978-04-27 | Deckel Feinmechanik Michael | Radius grinder for end-mill cutters - has cutter held on inclined axis for radiusing by frusto=conical grinding wheel |
| DE3729162A1 (en) * | 1987-09-01 | 1989-03-09 | Guehring Automation | MACHINE TOOL FOR MACHINING WORKPIECES BY MEANS OF TURNING TOOLS |
| US5197228A (en) * | 1989-06-19 | 1993-03-30 | Constant Velocity Systems, Inc. | Method of and machine for grinding a workpiece |
| US5359814A (en) * | 1989-06-19 | 1994-11-01 | Constant Velocity Systems, Inc. | System for grinding a workpiece |
| US5168661A (en) * | 1990-05-30 | 1992-12-08 | The Gleason Works | Method of grinding the surfaces of cutting blades and grinding wheel therefor |
| JPH06134667A (en) * | 1992-10-26 | 1994-05-17 | Seiko Seiki Co Ltd | Wheel spindle device |
| US5503588A (en) * | 1993-06-30 | 1996-04-02 | The Gleason Works | Method of sharpening cutting blades |
-
1994
- 1994-09-06 DE DE4431634A patent/DE4431634C1/en not_active Expired - Fee Related
-
1995
- 1995-08-25 ES ES95113352T patent/ES2114714T3/en not_active Expired - Lifetime
- 1995-08-25 DE DE59501482T patent/DE59501482D1/en not_active Expired - Lifetime
- 1995-08-25 AT AT95113352T patent/ATE163386T1/en not_active IP Right Cessation
- 1995-08-25 EP EP95113352A patent/EP0700751B1/en not_active Expired - Lifetime
- 1995-09-05 CN CN95117717A patent/CN1072997C/en not_active Expired - Fee Related
- 1995-09-06 US US08/524,372 patent/US5630747A/en not_active Expired - Lifetime
- 1995-09-06 KR KR1019950029202A patent/KR100308798B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10012445A1 (en) * | 2000-03-15 | 2001-09-27 | Hubert Haller | Machining centre; has horizontal working plate and machining head for machining tool pivoting about vertical machining column by rotary plate and has carrying arms and holder device |
| DE10108094A1 (en) * | 2001-02-19 | 2002-09-12 | Reiling Gmbh | Machinetool table setdown for blank as edged tool has stop on setdown baseplate projecting to lock on to table stop plus clamps and arresters to hold setdown and workpiece in reproducible positions. |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960010168A (en) | 1996-04-20 |
| KR100308798B1 (en) | 2002-04-24 |
| ES2114714T3 (en) | 1998-06-01 |
| US5630747A (en) | 1997-05-20 |
| CN1072997C (en) | 2001-10-17 |
| CN1127690A (en) | 1996-07-31 |
| DE59501482D1 (en) | 1998-04-02 |
| EP0700751A1 (en) | 1996-03-13 |
| DE4431634C1 (en) | 1996-01-18 |
| ATE163386T1 (en) | 1998-03-15 |
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