EP2708325A1 - Device for machining workpieces with integrated tool alignment unit - Google Patents
Device for machining workpieces with integrated tool alignment unit Download PDFInfo
- Publication number
- EP2708325A1 EP2708325A1 EP13183628.0A EP13183628A EP2708325A1 EP 2708325 A1 EP2708325 A1 EP 2708325A1 EP 13183628 A EP13183628 A EP 13183628A EP 2708325 A1 EP2708325 A1 EP 2708325A1
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- EP
- European Patent Office
- Prior art keywords
- rotary table
- dressing
- supply station
- station
- central supply
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- 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.)
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- 238000003754 machining Methods 0.000 title description 11
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000012546 transfer Methods 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 description 9
- 239000004575 stone Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/04—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a rotary work-table
Definitions
- the invention relates to a device for machining workpieces with at least two processing stations and with a rotatably mounted rotary table, wherein at least two clamping devices for clamping a workpiece are arranged on the rotary table and the clamped workpieces are transported by a rotary movement of the rotary table in the processing areas of the processing stations ,
- a device of the aforementioned type is in the DE 100 16 897 A1 described.
- the technical background of the known device is that in a rotational position of the rotary table several workpieces are machined simultaneously in the processing stations of the device.
- a finish machining in particular by honing or fine grinding to eliminate deviations and irregularities of a workpiece or generation of a smooth surface on such devices usually come as finishing tools, for example rotating cup wheels, honing stones and the like are used.
- the invention is therefore based on the object to improve a device with the features mentioned in such a way that the time required for dressing the finishing tools used is reduced.
- the invention provides in its basic idea that on the rotary table between two clamping devices at least one, a drive for a dressing tool having dressing for a mounted on a processing station finishing tool is arranged, which by rotation of the rotary table in each of a processing station with a arranged thereon of A dressing station for a fluid to be fed to the dressing unit is arranged fixedly on the device and a plurality of transfer stations connected to each other by a supply line extending along the circumference of the round table on the rotary table Fluid is arranged such that in each of the dressing unit occupied by the dressing position one of the transfer stations to the central supply station is coupled, wherein the dressing unit is connected to one of the transfer stations or the supply line.
- the invention has the advantage that a removal or replacement of the finishing tools is avoided because the finishing tools can be dressed in their installed in the associated processing station position because the appropriate dressing unit is mounted on the rotary table and the rotation of different processing stations can be associated with the finishing tools arranged thereon, so that the dressing tool is brought in the respective dressing position in contact with the finishing tool to be dressed in each case.
- the finishing tool due to the realized in each processing station movement possibility in a vertical pitch axis as well as in a radially aligned feed axis different positions are brought to the about the dressing tool associated drive preferably in rotation dressing tool.
- a particular aspect of the invention is to ensure the fluid supply of the dressing unit in all adjustable dressing positions.
- a central supply station for the fluid is fixedly arranged on the apparatus on the one hand and on the other hand is arranged on the rotary table a plurality of interconnected by a extending in the circumferential direction of the rotary feed line transfer stations for the fluid, in the respective, on the training of the desired Finishing tool tuned rotary position of the rotary table automatically connect to the stationary central supply station. Since the dressing unit in turn is connected to a transfer station or the supply line, the fluid fed into the supply line from the central supply station via the respectively coupled transfer station is available on the dressing unit as drive medium. From such an arrangement results that a shut-off of the fluid flow in uncoupled state in the region of the central supply station, while the flow path for the fluid is effected by the engagement of central supply station and associated transfer station.
- the invention also includes the idea of arranging more than one dressing with an associated dressing tool on the rotary table.
- a further dressing unit can also be connected to a transfer station or the supply line, in which case a control valve must be connected between the dressing unit and the transfer station or the supply line in order to control the different dressing units separately or jointly in each rotational position of the rotary table to be able to.
- the stationary central supply station is arranged on a radially up to below the round table projecting arm attached to a round column supporting the rotary table and the coupling between the central supply station and arranged on the rotary table transfer stations through the Level of the round table is done.
- a fixed dressing position of the dressing unit is sufficient, wherein the movement possibilities of the honing stone in the vertical setting axis and in the radial feed axis are usable and sufficient for dressing, it is suitable for dressing the working surface of a cup wheel, to provide additional movement of the dressing unit in the circumferential direction of the rotary table.
- This can be represented, for example, by virtue of the fact that the rotary table is preferably rotated in its two directions of rotation by a predetermined, limited angle of rotation.
- the coupling between the central supply station and each transfer station is designed such that in the coupled state, a relative rotation of the rotary table to the central supply station via a predetermined, limited angle of rotation is possible.
- each a mutually couplable pipe socket is arranged, wherein the pipe sockets are arranged in each case with a rotational angle corresponding movement path in the central supply station and in the transfer stations.
- the upper free end of the mandrel is stepped with a smaller diameter than the diameter of the mandrel having upstanding step is formed on the surface of the dressing surface for dressing the working surface of the cup wheel is formed, and the reference surface is arranged at the surface of the mandrel which surrounds the surface carrying the dressing surface.
- the rotary table rotatable in both directions of rotation 11 is supported by a central device column 10, to which processing stations, not shown in detail, are arranged with thereto held finishing tools.
- a plurality of clamping devices 12 are correspondingly arranged on the rotary table 11, only one clamping device 12 being shown completely in the figures, while only one base plate 12a arranged on the rotary table 11 for a clamping device to be fastened thereto is shown with respect to further clamping devices.
- a workpiece 13 is clamped in the clamping device 12, which is machined by an inner grinding pin 14 used as a finishing tool, wherein the inner grinding pin 14 is held by a processing station, not shown in detail, carried by the device column 10.
- the inner grinding pin 14 in the vertical axis perform an adjusting movement and in a radially extending to the rotary table 11 axis a feed movement.
- a dressing unit 16 On the rotary table 11, in addition to the tensioning devices 12, a dressing unit 16 is arranged, which carries a dressing tool 17 in the form of a horizontal disc which can be set in rotation by means of a pneumatic drive 18 arranged on the dressing unit 16.
- a central supply station 20 is arranged on the device column 10, which has a radially displaceable coupling plate 21 with a pipe stub 22 arranged therein. Accordingly, 11 transfer stations 23a, 23b and 23c are arranged on the inside of the rotary table, which are interconnected by means of a supply line 24.
- the drive 18 of the dressing unit 16 is connected by means of a connecting line 25 to the supply line 24.
- the dressing unit 16 is offset in the circumferential direction to the clamping device 12.
- an offset in the circumferential direction between the middle transfer station 23b and the central supply station 20 is given. It is understood that in this position, a blockage of the compressed air outlet at the central supply station 20 must be realized.
- FIG. 2 is now required depending on the wear occurred from time to time dressing of the inner grinding pin used as a finishing tool 14 can be seen.
- the dressing unit 16 is now brought into a position by rotation of the rotary table 11 in a clockwise direction, in which a dressed as dressing tool 17 dressing wheel rests against the outer circumference of the inner grinding pin 14, so that by dressing the dressing tool 17, the dressing of the inner grinding pin 14 can be done ,
- the isseschleifit 14 associated dressing position the Transfer station 23b is located in front of the central supply station 20, so that by the radial extension of the coupling plate 21, the line connection between the central supply station 20 and the supply line 24 via the transfer station 23b is made.
- the supplied compressed air is available at the dressing unit 16.
- the dressing unit 16 is moved by rotation of the rotary table 11 in a remote from the inner grinding pin 14 position; For this purpose, the coupling between central supply station 20 and transfer station 23b is canceled, so that the transfer station 23b can move away from the central supply station 20.
- the dressing unit 16 can be moved by a further rotation of the rotary table 11 in any other, another processing station associated dressing position, the individual transfer stations 23a, 23b, 23b are each arranged on the rotary table 11 that in each dressing position of Dressing unit 16 is a coupling of the central supply station 20 with a respective associated transfer station 23 is given.
- FIGS. 3 to 5 an additional dressing function for a used as a finishing tool cup wheel shown in addition to the in the FIGS. 1 and 2 can be used, but does not necessarily have to be used.
- the mandrel 30 is again brought by rotation of the rotary table 11 in a position in which the formed on the mandrel 30 dressing surface 32 can act on the lower working surface 28 of the cup wheel 27.
- the dressing surface 32 is formed on the surface of a formed at the upper free end of the mandrel 30 stage 31, which has a smaller diameter than the diameter of the mandrel.
- the mandrel 30 additionally allows the execution of a in the DE 10 2006 019 135 A1 described method for wear compensation in the finish machining of workpieces, which is based on the arrangement of a to be approached by the finishing tool reference surface. Due to the known output dimensions of the cup wheel on the one hand and the exact position of the reference surface on the other hand, during the initial dressing as well as during the period of use of the cup wheel 27 whose respective state of wear can be determined by the fact that the cup disc brought into contact with the reference surface and each of the cup wheel passed way determined as a measure of the wear occurred becomes.
- the procedure in detail is in the DE 10 2006 019 135 A1 described and insofar not subject of the present invention, so that is dispensed with a further explanation of the method itself.
- the mandrel 30 provided for an initial dressing function is now also adapted for carrying out the aforementioned method by forming on the mandrel 30 a reference surface 35 projecting from the surface of a surface 33 of the surface 33 surrounding the step 31 Dorns 30 attached paragraph 34 is defined.
- FIG. 5 shows the situation of placing the cup wheel 27 with its working surface 28 on the formed on the mandrel 30 reference surface 35.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Bearbeiten von Werkstücken mit mindestens zwei Bearbeitungsstationen und mit einem drehbar gelagerten Rundtisch, wobei an dem Rundtisch mindestens zwei Spannvorrichtungen zum Einspannen je eines Werkstückes angeordnet sind und die eingespannten Werkstücke durch eine Drehbewegung des Rundtisches in die Bearbeitungsbereiche der Bearbeitungsstationen transportierbar sind.The invention relates to a device for machining workpieces with at least two processing stations and with a rotatably mounted rotary table, wherein at least two clamping devices for clamping a workpiece are arranged on the rotary table and the clamped workpieces are transported by a rotary movement of the rotary table in the processing areas of the processing stations ,
Eine Vorrichtung der vorgenannten Art ist in der
Soweit die eingesetzten Finishwerkzeuge in Abhängigkeit von dem an ihnen während der Bearbeitungszeit eintretenden Verschleiß eine Abrichtung durch ein geeignetes Abrichtwerkzeug bedürfen, um die Bearbeitungsqualität des entsprechenden Finishwerkzeuges aufrechtzuerhalten, ist mit der bekannten Vorrichtung noch der Nachteil verbunden, dass die an den Bearbeitungsstationen eingebauten Finishwerkzeuge zum Durchführen des Abrichtens aus der Vorrichtung ausgebaut und anschließend wieder eingebaut werden müssen. Diese Vorgehensweise ist zeitaufwendig und kann außerdem wegen des Aus- und Einbaus zu Ungenauigkeiten in der Positionierung des Finishwerkzeuges bezüglich des auf dem Rundtisch eingespannten Werkstücks führen.As far as the finishing tools used depending on the wear occurring during the processing time wear through a suitable dressing tool to maintain the machining quality of the corresponding finishing tool, is associated with the known device still the disadvantage that the built-in finishing stations finishing tools for performing the dressing must be removed from the device and then reinstalled. This procedure is time consuming and can also lead to inaccuracies in the positioning of the finishing tool with respect to the workpiece clamped on the rotary table due to the removal and installation.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung mit den eingangs genannten Merkmalen derart zu verbessern, dass der Zeitaufwand für das Abrichten der eingesetzten Finishwerkzeuge verringert ist.The invention is therefore based on the object to improve a device with the features mentioned in such a way that the time required for dressing the finishing tools used is reduced.
Die Lösung dieser Aufgabe ergibt sich einschließlich vorteilhafter Ausgestaltungen und Weiterbildungen der Erfindung aus dem Inhalt der Patentansprüche, welche dieser Beschreibung nachgestellt sind.The solution to this problem arises, including advantageous refinements and developments of the invention from the content of the claims, which are adjusted to this description.
Die Erfindung sieht in ihrem Grundgedanken vor, dass an dem Rundtisch zwischen zwei Spannvorrichtungen wenigstens eine, einen Antrieb für ein Abrichtwerkzeug aufweisende Abrichteinheit für ein an einer Bearbeitungsstation angebrachtes Finishwerkzeug angeordnet ist, welche durch Drehung des Rundtisches in jede einer Bearbeitungsstation mit einem daran angeordneten, von dem eingesetzten Abrichtwerkzeug abzurichtenden Finishwerkzeug zugeordnete Abrichtposition überführbar ist, und dass an der Vorrichtung ortsfest eine zentrale Versorgungsstation für ein dem Antrieb der Abrichteinheit zuzuleitendes Fluid angeordnet und an dem Rundtisch eine Mehrzahl von untereinander durch eine sich längs des Umfanges des Rundtisches erstreckende Versorgungsleitung verbundenen Übernahmestationen für das Fluid angeordnet ist derart, dass in jeder von der Abrichteinheit eingenommenen Abrichtposition eine der Übernahmestationen an die zentrale Versorgungsstation angekoppelt ist, wobei die Abrichteinheit mit einer der Übernahmestationen oder der Versorgungsleitung verbunden ist.The invention provides in its basic idea that on the rotary table between two clamping devices at least one, a drive for a dressing tool having dressing for a mounted on a processing station finishing tool is arranged, which by rotation of the rotary table in each of a processing station with a arranged thereon of A dressing station for a fluid to be fed to the dressing unit is arranged fixedly on the device and a plurality of transfer stations connected to each other by a supply line extending along the circumference of the round table on the rotary table Fluid is arranged such that in each of the dressing unit occupied by the dressing position one of the transfer stations to the central supply station is coupled, wherein the dressing unit is connected to one of the transfer stations or the supply line.
Mit der Erfindung ist der Vorteil verbunden, dass ein Aus- bzw. Wiedereinbau der Finishwerkzeuge vermieden ist, da die Finishwerkzeuge in ihrer in der zugehörigen Bearbeitungsstation eingebauten Position abgerichtet werden können, weil die entsprechende Abrichteinheit auf dem Rundtisch angebracht ist und durch dessen Drehung unterschiedlichen Bearbeitungsstationen mit den daran angeordneten Finishwerkzeugen zugeordnet werden kann, so dass das Abrichtwerkzeug in der jeweiligen Abrichtposition in einen Kontakt mit dem jeweils abzurichtenden Finishwerkzeug gebracht ist. Dabei kann das Finishwerkzeug aufgrund der in der jeweiligen Bearbeitungsstation verwirklichten Bewegungsmöglichkeit in einer vertikalen Anstellachse wie auch in einer radial ausgerichteten Zustellachse unterschiedliche Positionen zu dem über den dem Abrichtwerkzeug zugeordneten Antrieb vorzugsweise in Rotation versetzten Abrichtwerkzeug gebracht werden.The invention has the advantage that a removal or replacement of the finishing tools is avoided because the finishing tools can be dressed in their installed in the associated processing station position because the appropriate dressing unit is mounted on the rotary table and the rotation of different processing stations can be associated with the finishing tools arranged thereon, so that the dressing tool is brought in the respective dressing position in contact with the finishing tool to be dressed in each case. In this case, the finishing tool due to the realized in each processing station movement possibility in a vertical pitch axis as well as in a radially aligned feed axis different positions are brought to the about the dressing tool associated drive preferably in rotation dressing tool.
Soweit der Antrieb für das Abrichtwerkzeug üblicherweise von einem Fluid, vorzugsweise Druckluft, beaufschlagt ist, besteht ein besonderer Gesichtspunkt der Erfindung darin, die Fluidversorgung der Abrichteinheit in allen einstellbaren Abrichtpositionen sicherzustellen. Hierzu ist an der Vorrichtung einerseits ortsfest eine zentrale Versorgungsstation für das Fluid angeordnet und andererseits ist an dem Rundtisch eine Mehrzahl von untereinander durch eine sich in Umfangsrichtung des Rundtisches erstreckende Versorgungsleitung verbundenen Übernahmestationen für das Fluid angeordnet, die in der jeweiligen, auf die Abrichtung des gewünschten Finishwerkzeuges abgestimmten Drehstellung des Rundtisches sich automatisch an die ortsfeste zentrale Versorgungsstation ankuppeln. Da die Abrichteinheit ihrerseits an eine Übernahmestation oder die Versorgungsleitung angeschlossen ist, steht das von der zentralen Versorgungsstation über die jeweils angekoppelte Übernahmestation in die Versorgungsleitung eingespeiste Fluid an der Abrichteinheit als Antriebsmedium zur Verfügung. Aus einer derartigen Anordnung ergibt sich, dass eine Absperrung des Fluidstroms in ungekuppeltem Zustand im Bereich der zentralen Versorgungsstation erfolgt, während der Strömungsweg für das Fluid durch das Einkuppeln von zentraler Versorgungsstation und zugeordneter Übernahmestation erfolgt.As far as the drive for the dressing tool is usually subjected to a fluid, preferably compressed air, a particular aspect of the invention is to ensure the fluid supply of the dressing unit in all adjustable dressing positions. For this purpose, a central supply station for the fluid is fixedly arranged on the apparatus on the one hand and on the other hand is arranged on the rotary table a plurality of interconnected by a extending in the circumferential direction of the rotary feed line transfer stations for the fluid, in the respective, on the training of the desired Finishing tool tuned rotary position of the rotary table automatically connect to the stationary central supply station. Since the dressing unit in turn is connected to a transfer station or the supply line, the fluid fed into the supply line from the central supply station via the respectively coupled transfer station is available on the dressing unit as drive medium. From such an arrangement results that a shut-off of the fluid flow in uncoupled state in the region of the central supply station, while the flow path for the fluid is effected by the engagement of central supply station and associated transfer station.
Soweit in einer gattungsgemäßen Vorrichtung unterschiedliche Finishwerkzeuge eingesetzt sein können, die jeweils auch den Einsatz unterschiedlicher Abrichtwerkzeuge bedingen, schließt die Erfindung auch den Gedanken ein, mehr als eine Abrichteinheit mit einem zugeordneten Abrichtwerkzeug auf dem Rundtisch anzuordnen. Auch eine derartige weitere Abrichteinheit kann an eine Übernahmestation oder die Versorgungsleitung angeschlossen sein, wobei in diesem Fall zwischen die Abrichteinheit und die Übernahmestation bzw. die Versorgungsleitung ein Steuerventil geschaltet sein muss, um die unterschiedlichen Abrichteinheiten in jeder Drehstellung des Rundtisches jeweils getrennt oder auch gemeinsam ansteuern zu können.As far as different finishing tools can be used in a generic device, each of which also require the use of different dressing tools, the invention also includes the idea of arranging more than one dressing with an associated dressing tool on the rotary table. Such a further dressing unit can also be connected to a transfer station or the supply line, in which case a control valve must be connected between the dressing unit and the transfer station or the supply line in order to control the different dressing units separately or jointly in each rotational position of the rotary table to be able to.
Nach einem Ausführungsbeispiel der Erfindung kann vorgesehen sein, dass die ortsfeste zentrale Versorgungsstation an einem vom Rundtisch umschlossenen Abschnitt einer den Rundtisch tragenden Vorrichtungssäule angeordnet ist derart, dass die Kopplung zwischen der zentralen Versorgungsstation und den auf dem Rundtisch angeordneten Übernahmestationen oberhalb der Ebene des Rundtisches erfolgt.According to one exemplary embodiment of the invention, provision may be made for the stationary central supply station to be arranged on a section of a round column-mounted device column in such a way that the coupling between the central supply station and the transfer stations arranged on the rotary table takes place above the level of the rotary table.
In einer alternativen Ausführungsform der Erfindung kann vorgesehen sein, dass die ortsfeste zentrale Versorgungsstation an einem an einer den Rundtisch tragenden Vorrichtungssäule angebrachten, radial bis unter den Rundtisch vorstehenden Arm angeordnet ist und die Kopplung zwischen der zentralen Versorgungsstation und den auf dem Rundtisch angeordneten Übernahmestationen durch die Ebene des Rundtisches hindurch erfolgt.In an alternative embodiment of the invention, it may be provided that the stationary central supply station is arranged on a radially up to below the round table projecting arm attached to a round column supporting the rotary table and the coupling between the central supply station and arranged on the rotary table transfer stations through the Level of the round table is done.
Soweit beispielsweise bei dem Abrichten eines Honsteins als Finishwerkzeug eine feststehende Abrichtposition der Abrichteinheit ausreichend ist, wobei für das Abrichten die Bewegungsmöglichkeiten des Honsteins in der vertikalen Anstellachse und in der radialen Zustellachse nutzbar und ausreichend sind, ist es für das Abrichten der Bearbeitungsfläche einer Topfscheibe zweckmäßig, auch eine zusätzliche Bewegung der Abrichteinheit in der Umfangsrichtung des Rundtisches vorzusehen. Dies ist beispielsweise dadurch darstellbar, dass der Rundtisch vorzugsweise in seinen beiden Drehrichtungen jeweils um einen vorgegebenen, begrenzten Drehwinkel gedreht wird. Um auch bei einem derartigen Bewegungsablauf die Versorgung der Abrichteinheit mit Antriebsfluid sicherzustellen, kann nach einem Ausführungsbeispiel der Erfindung vorgesehen sein, dass die Kopplung zwischen zentraler Versorgungsstation und jeder Übernahmestation derart ausgebildet ist, dass in angekoppeltem Zustand eine Relativdrehung des Rundtisches zu der zentralen Versorgungsstation über einen vorgegebenen, begrenzten Drehwinkel möglich ist.If, for example, when dressing a honing stone as a finishing tool, a fixed dressing position of the dressing unit is sufficient, wherein the movement possibilities of the honing stone in the vertical setting axis and in the radial feed axis are usable and sufficient for dressing, it is suitable for dressing the working surface of a cup wheel, to provide additional movement of the dressing unit in the circumferential direction of the rotary table. This can be represented, for example, by virtue of the fact that the rotary table is preferably rotated in its two directions of rotation by a predetermined, limited angle of rotation. In order to ensure the supply of the dressing unit with drive fluid in such a movement, can be provided according to an embodiment of the invention that the coupling between the central supply station and each transfer station is designed such that in the coupled state, a relative rotation of the rotary table to the central supply station via a predetermined, limited angle of rotation is possible.
Hierzu kann im Einzelnen vorgesehen sein, dass in der zentralen Versorgungsstation und den Übernahmenstationen jeweils ein miteinander koppelbarer Leitungsstutzen angeordnet ist, wobei die Leitungsstutzen jeweils mit einem dem Drehwinkel entsprechenden Bewegungsweg in der zentralen Versorgungsstation und in den Übernahmestationen beweglich angeordnet sind.For this purpose, it may be provided in detail that in the central supply station and the pickup stations each a mutually couplable pipe socket is arranged, wherein the pipe sockets are arranged in each case with a rotational angle corresponding movement path in the central supply station and in the transfer stations.
Insbesondere soweit wenigstens eine der Bearbeitungsstationen mit einer in Rotation zu versetzenden Topfscheibe als Finishwerkzeug bestückt ist, ergibt sich ein zusätzliches Problem dadurch, dass bei einer neuen, ungebrauchten Topfscheibe, ggfs. aber auch bei einer neu abgerichteten Topfscheibe ein erstmaliges Einschleifen von deren Bearbeitungsfläche wünschenswert ist, um eine Anpassung der Schleifkontur der Bearbeitungsfläche der Topfscheibe an die zu bearbeitende Werkstückfläche zu beschleunigen. Hierzu kann nach einem Ausführungsbeispiel der Erfindung vorgesehen sein, dass zusätzlich zu der einen Antrieb für das Abrichtwerkzeug aufweisenden Abrichteinheit an dem Rundtisch ein auf dem Rundtisch aufstehender Dorn angeordnet ist, der an seinem oberen freien Ende eine Abrichtfläche für die der Oberfläche des Rundtisches gegenüberliegende Bearbeitungsfläche der Topfscheibe aufweist und durch Drehung des Rundtisches in eine Abrichtposition für jede an einer der Bearbeitungsstationen eingesetzte Topfscheibe bringbar ist. Durch die Bewegung der Topfscheibe in der vertikalen Anstellachse sowie in der radialen Zustellachse einerseits und die Drehung des Rundtisches, vorzugsweise in dessen beiden Drehrichtungen, andererseits kann durch den Kontakt der unteren Bearbeitungsfläche der Topfscheibe mit der Abrichtfläche des Dorns die gewünschte Schleifkontur hergestellt werden.In particular, as far as at least one of the processing stations is equipped with a set in rotation cup wheel as a finishing tool, an additional problem arises from the fact that in a new, unused cup wheel, if necessary. But also in a newly dressed cup wheel a first-time grinding of the processing surface is desirable to accelerate an adaptation of the grinding contour of the working surface of the cup wheel to the workpiece surface to be machined. For this purpose, it can be provided according to an embodiment of the invention that in addition to the drive for the dressing tool having dressing on the rotary table on the rotary table upstanding mandrel is arranged, which has at its upper free end a dressing surface for the surface of the rotary table opposite working surface of the cup wheel and can be brought by rotation of the rotary table in a dressing position for each used at one of the processing stations cup wheel. By the movement of the cup wheel in the vertical pitch axis and in the radial feed axis on the one hand and the rotation of the rotary table, preferably in the two directions of rotation, on the other hand can be made by the contact of the lower working surface of the cup wheel with the dressing surface of the mandrel, the desired grinding contour.
Soweit es aus der
Ergänzend kann nach Ausführungsbeispielen der Erfindung vorgesehen sein, dass das obere freie Ende des Dorns gestuft mit einer einen geringeren Durchmesser als der Durchmesser des Dorns aufweisenden aufstehenden Stufe ausgebildet ist, an deren Oberfläche die Abrichtfläche für das Abrichten der Bearbeitungsfläche der Topfscheibe ausgebildet ist, und dass die Referenzfläche an der die die Abrichtfläche tragenden Stufe umschließenden Oberfläche des Dorns angeordnet ist.In addition, according to embodiments of the invention may be provided that the upper free end of the mandrel is stepped with a smaller diameter than the diameter of the mandrel having upstanding step is formed on the surface of the dressing surface for dressing the working surface of the cup wheel is formed, and the reference surface is arranged at the surface of the mandrel which surrounds the surface carrying the dressing surface.
In der Zeichnung sind Ausführungsbeispiele der Erfindung wiedergegeben, welche nachstehend beschrieben sind. Es zeigen:
- Fig. 1
- eine Vorrichtung zum Bearbeiten von Werkstücken in einer ausschnittsweisen Darstellung ihres Rundtisches mit einer Spannvorrichtung und einer Abrichteinheit während der Bearbeitung eines Werkstückes mit einem Innenschleifstift als Finishwerkzeug in einer Perspektivansicht,
- Fig. 2
- den Gegenstand der
Figur 1 während der Abrichtung des Innenschleifstiftes mittels eines an der Abrichteinheit angeordneten Abrichtwerkzeuges, - Fig. 3
- eine Vorrichtung ähnlich der Darstellung in
Figur 1 mit einem zusätzlichen Dorn zur Abrichtung einer als Finishwerkzeug eingesetzten Topfscheibe während der Bearbeitung eines Werkstückes mit der Topfscheibe, - Fig. 4
- den Gegenstand der
Figur 3 während des Einschleifens der Topfscheibe an einem eine Abrichtfläche aufweisenden Dorn, - Fig. 5
- den Gegenstand der
Figur 4 während des Aufsetzens der Topfscheibe auf eine an dem Dorn zusätzlich angeordnete Referenzfläche zur Durchführung eines Verfahrens zur Verschleißkompensation der Topfscheibe.
- Fig. 1
- a device for machining workpieces in a sectional view of its rotary table with a clamping device and a dressing unit during the machining of a workpiece with an inner grinding pin as a finishing tool in a perspective view,
- Fig. 2
- the object of
FIG. 1 during the dressing of the inner grinding pin by means of a dressing tool arranged on the dressing unit, - Fig. 3
- a device similar to the illustration in FIG
FIG. 1 with an additional mandrel for dressing a cup wheel used as a finishing tool during the machining of a workpiece with the cup wheel, - Fig. 4
- the object of
FIG. 3 during the grinding in of the cup wheel on a mandrel having a dressing surface, - Fig. 5
- the object of
FIG. 4 during placement of the cup wheel on a additionally arranged on the mandrel reference surface for performing a method for wear compensation of the cup wheel.
In der Zeichnung ist eine Vorrichtung zum Bearbeiten von Werkstücken mit einer Mehrzahl von Bearbeitungsstationen und mit einem drehbar gelagerten Rundtisch nur ausschnittsweise dargestellt, soweit dies für das Verständnis der Erfindung erforderlich ist. Eine prinzipielle Darstellung ist beispielsweise der gattungsbildenden
Bei dem dargestellten Ausführungsbeispiel ist der in beiden Drehrichtungen drehbare Rundtisch 11 von einer zentralen Vorrichtungssäule 10 getragen, an welcher im Einzelnen nicht dargestellte Bearbeitungsstationen mit daran gehalterten Finishwerkzeugen angeordnet sind.In the illustrated embodiment, the rotary table rotatable in both directions of rotation 11 is supported by a
Auf dem Rundtisch 11 ist entsprechend eine Mehrzahl von Spannvorrichtungen 12 angeordnet, wobei in den Figuren jeweils nur eine Spannvorrichtung 12 vollständig dargestellt ist, während bezüglich weiterer Spannvorrichtungen jeweils nur eine auf dem Rundtisch 11 angeordnete Grundplatte 12a für eine darauf zu befestigende Spannvorrichtung dargestellt ist.A plurality of
Bei dem in
Auf dem Rundtisch 11 ist zusätzlich zu den Spannvorrichtungen 12 eine Abrichteinheit 16 angeordnet, die ein Abrichtwerkzeug 17 in Form einer horizontalen Scheibe trägt, die mittels eines an der Abrichteinheit 16 angeordneten Druckluftantriebes 18 in Drehung versetzbar ist.On the rotary table 11, in addition to the
Zur Versorgung der Abrichteinheit mit Druckluft ist an der Vorrichtungssäule 10 eine zentrale Versorgungsstation 20 angeordnet, die eine radial verschiebbare Kupplungsplatte 21 mit einem darin angeordneten Leitungsstutzen 22 aufweist. Entsprechend sind an der Innenseite des Rundtisches 11 Übernahmestationen 23a, 23b und 23c angeordnet, die untereinander mittels einer Versorgungsleitung 24 verbunden sind. Der Antrieb 18 der Abrichteinheit 16 ist mittels einer Verbindungsleitung 25 mit der Versorgungsleitung 24 verbunden. Dabei sind die einzelnen Übernahmestationen 23 an dem Rundtisch 11 so angeordnet, dass bei dem nachfolgend noch zu beschreibenden Bewegungsablauf in jeder von der Abrichteinheit 16 einzunehmenden Abrichtposition eine Übernahmestation 23a, 23b oder 23c so vor der zentralen Versorgungsstation 20 steht, dass durch ein Ausfahren von deren Kupplungsplatte 21 mit Leitungsstutzen 22 dieser Leitungsstutzen 22 in einen in der Übernahmestation 23 angeordneten, nicht weiter dargestellten Leitungsstutzen einfahrbar ist, so dass ein Leitungsverbindung zwischen der zentralen Versorgungsstation 20 und der Versorgungsleitung 24 hergestellt ist. Damit steht die an der zentralen Versorgungsstation 20 anstehende Druckluft im Kupplungszustand von zentraler Versorgungsstation 20 und zugeordneter Übernahmestation 23a, 23b oder 23c über die Versorgungsleitung 24 und die Verbindungsleitung 25 am Antrieb 18 der Abrichteinheit 16 zur Verfügung, so dass das Abrichtwerkzeug 17 in Funktion treten kann.To supply the dressing unit with compressed air, a
Soweit in
Aus
Nach Ende des Abrichtvorganges wird die Abrichteinheit 16 durch Drehung des Rundtisches 11 in eine von dem Innenschleifstift 14 abgesetzte Position verfahren; hierzu wird die Kupplung zwischen zentraler Versorgungsstation 20 und Übernahmestation 23b aufgehoben, so dass sich die Übernahmestation 23b von der zentralen Versorgungsstation 20 wegbewegen kann.After completion of the dressing process, the
Es ist einsichtig, dass die Abrichteinheit 16 durch eine Weiterdrehung des Rundtisches 11 in jede andere, einer anderen Bearbeitungsstation zugeordnete Abrichtposition verfahren werden kann, wobei die einzelnen Übernahmestationen 23a, 23b, 23b jeweils so auf dem Rundtisch 11 angeordnet sind, dass in jeder Abrichtposition der Abrichteinheit 16 eine Kopplung der zentralen Versorgungsstation 20 mit einer jeweils zugeordneten Übernahmestation 23 gegeben ist.It is understood that the
Über die vorstehend beschriebene auf dem Rundtisch integrierte Abrichtmöglichkeit mit jeweils an der Abrichteinheit 16 in Anpassung an die eingesetzten Finishwerkzeuge eingesetzten Abrichtwerkzeugen 17 hinaus ist in den
Bei einer derartigen Topfscheibe besteht nämlich das Problem, dass bei einer neuen, ungebrauchten Topfscheibe wie auch bei einer neu abgerichteten Topfscheibe ein erstmaliges Einschleifen von deren Bearbeitungsfläche wünschenswert ist, um eine Anpassung der Schleifkontur der Bearbeitungsfläche der Topfscheibe an die zu bearbeitende Werkstückfläche zu beschleunigen. Hierzu ergibt sich aus
Wie sich aus
Bei dem in den
Bei dem dargestellten Ausführungsbeispiel ist der für eine anfängliche Abrichtfunktion vorgesehene Dorn 30 nun aber zusätzlich auch für die Durchführung des vorgenannten Verfahrens eingerichtet, indem an dem Dorn 30 eine Referenzfläche 35 ausgebildet ist, die von der Oberfläche eines auf der die Stufe 31 umgebenden Oberfläche 33 des Dorns 30 angebrachten Absatzes 34 definiert ist. Insofern zeigt
Die in der vorstehenden Beschreibung, den Patentansprüchen, der Zusammenfassung und der Zeichnung offenbarten Merkmale des Gegenstandes dieser Unterlagen können einzeln als auch in beliebigen Kombinationen untereinander für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.The features disclosed in the foregoing description, the claims, the abstract and the drawings of the subject matter of these documents may be essential individually or in any combination with each other for the realization of the invention in its various embodiments.
Claims (10)
Applications Claiming Priority (1)
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DE201210108628 DE102012108628B3 (en) | 2012-09-14 | 2012-09-14 | Device for machining workpieces with integrated tool dressing unit |
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EP2708325A1 true EP2708325A1 (en) | 2014-03-19 |
EP2708325B1 EP2708325B1 (en) | 2015-05-27 |
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EP13183628.0A Active EP2708325B1 (en) | 2012-09-14 | 2013-09-10 | Device for machining workpieces with integrated tool alignment unit |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109227378A (en) * | 2018-11-01 | 2019-01-18 | 广西广控智能科技有限公司 | A kind of grinding device and method |
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CN105328547B (en) * | 2015-11-25 | 2018-10-09 | 苏州金逸康自动化设备有限公司 | A kind of lifting rotation index dial for the automatic flash removed machine in multiplexing station |
Citations (4)
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---|---|---|---|---|
DE1552762A1 (en) * | 1966-06-01 | 1969-09-25 | Kehr & Wichmann Maschinenfabri | Device for finishing workpieces |
DE10016897A1 (en) | 2000-04-05 | 2001-10-18 | Supfina Grieshaber Gmbh & Co | Device for multiple processing of workpieces in chucks has at least two processing stations for successive or simultaneous processing of workpieces clamped in chucks throughout |
DE102006019135A1 (en) | 2006-04-21 | 2007-11-08 | Thielenhaus Technologies Gmbh | Method for wear compensation of a finishing tool |
JP2012011510A (en) * | 2010-07-01 | 2012-01-19 | Honda Motor Co Ltd | Brush grinding method of metal ring and device therefor |
-
2012
- 2012-09-14 DE DE201210108628 patent/DE102012108628B3/en active Active
-
2013
- 2013-09-10 EP EP13183628.0A patent/EP2708325B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1552762A1 (en) * | 1966-06-01 | 1969-09-25 | Kehr & Wichmann Maschinenfabri | Device for finishing workpieces |
DE10016897A1 (en) | 2000-04-05 | 2001-10-18 | Supfina Grieshaber Gmbh & Co | Device for multiple processing of workpieces in chucks has at least two processing stations for successive or simultaneous processing of workpieces clamped in chucks throughout |
DE102006019135A1 (en) | 2006-04-21 | 2007-11-08 | Thielenhaus Technologies Gmbh | Method for wear compensation of a finishing tool |
JP2012011510A (en) * | 2010-07-01 | 2012-01-19 | Honda Motor Co Ltd | Brush grinding method of metal ring and device therefor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109227378A (en) * | 2018-11-01 | 2019-01-18 | 广西广控智能科技有限公司 | A kind of grinding device and method |
CN109227378B (en) * | 2018-11-01 | 2024-03-08 | 广西广控智能科技有限公司 | Polishing device and method |
Also Published As
Publication number | Publication date |
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EP2708325B1 (en) | 2015-05-27 |
DE102012108628B3 (en) | 2014-05-15 |
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