EP0482397A2 - Procedure of and device for finish-grinding of rings on the outer or inner area - Google Patents
Procedure of and device for finish-grinding of rings on the outer or inner area Download PDFInfo
- Publication number
- EP0482397A2 EP0482397A2 EP91116891A EP91116891A EP0482397A2 EP 0482397 A2 EP0482397 A2 EP 0482397A2 EP 91116891 A EP91116891 A EP 91116891A EP 91116891 A EP91116891 A EP 91116891A EP 0482397 A2 EP0482397 A2 EP 0482397A2
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- European Patent Office
- Prior art keywords
- measuring
- ring surface
- machined
- heads
- measuring heads
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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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Classifications
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
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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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/06—Honing machines or devices; Accessories therefor with controlling or gauging equipment
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/08—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving liquid or pneumatic means
Definitions
- the invention relates to a method for fine grinding rings on the outer ring surface or on the inner ring surface, in particular for fine grinding roller bearing races, with the addition of a quantity of detergent as the rinsing liquid, a ring to be machined being mechanically centered in a workpiece holder and driven about its axis, and the ring surface to be machined is subjected to a measurement during the grinding process and the grinding process is controlled and / or regulated in accordance with the measurement.
- the invention also relates to devices for performing such a method. It goes without saying that the measurement values of the measurement are recorded and evaluated electrically in a suitable manner, for which purpose the modern, in particular electronic aids of measurement and control technology offer a multitude of possibilities, and also with computer support.
- the control is controlled in accordance with the specified material removal. Esp.
- high demands are placed on the accuracy of the material removal. It must also be ensured that the roundness of the workpieces does not suffer during machining.
- Mechanically centered means that one works with sliding shoes and / or so-called roller shoes or with a three-jaw chuck. The centering is done carefully. Nonetheless, slight deformations must be accepted due to the mechanical centering with regard to the roundness.
- the measurement is carried out with the aid of mechanical sensors which are placed with little pressure on the ring surface to be machined and which, for. B. are equipped with a fine diamond tip. It cannot be excluded that the tips of the feelers leave marks on the machined ring surface. The unavoidable slight out-of-roundness which the rings to be machined have can also lead to disturbing vibrations in the measuring system.
- the measurement is a contactless measurement.
- a flow of measuring air which emerges in a free jet from a nozzle, is directed onto the surface to be machined, so that a throttle gap is created between the nozzle and the surface to be machined.
- Changes in the gap width of this throttle gap which are based on different distances between the surface to be machined and the nozzle, cause pressure fluctuations in the air flow which is supplied via a line to the nozzle, which fluctuations are measured and evaluated in the manner described.
- the measurement accuracy is not sufficient for high requirements and disturbing vibrations cannot be excluded here either.
- the invention has for its object to provide a method for fine grinding rings on the outer ring surface or on the inner ring surface, esp.
- the invention teaches that a contactless measurement is carried out with at least two identical measuring heads, from which rinsing liquid emerges as hydraulic measuring means from at least one nozzle opening each, and that the hydraulic measuring means is introduced into the rinsing liquid layer free of radiation, which is the annular surface to be machined takes along and which forms between the measuring head and the annular surface.
- the invention is based on the knowledge that the disturbing vibrations described in the measuring system, despite the clamping-related out-of-roundness, no longer occur when working in the manner described with a hydraulic measuring means and this is introduced into the detergent layer, which forms on the ring surface to be processed, as described. This detergent layer is particularly pronounced when it comes to the fine grinding of inner ring surfaces.
- the washing-up liquid and the measuring device mix, but this does not increase within the scope of the invention Problems arise because the rinsing liquid is used as the measuring means.
- the measuring device provides sufficient damping in the measuring system and thereby suppresses disturbing vibrations without impairing the measuring accuracy. Surprisingly, the out-of-roundness that the rings bring with them or that is caused by the clamping does not have a disruptive effect on the measuring accuracy. It goes without saying that the line with which the measuring means is supplied must be sufficiently rigid so that vibrations are not generated in the line system.
- the measurements can be carried out particularly precisely if the measuring heads are arranged equidistantly to compensate for measuring force over the circumference of the ring surface to be machined. It is expedient to work with identically identical measuring heads. Without impairing the careful centering and without other disturbances, the measuring means can be supplied at a relatively high pressure in a measuring-compensating arrangement, which has a positive effect on the measuring technology. It is particularly advantageous to work with a quantity of measuring medium which is effective at the same time. In this way it can be prevented that the rings to be machined experience an inaccuracy due to heat distortion from the machining heat. In general, the quantity of measuring medium and the quantity of rinsing agent will be taken from the same pressure medium system and will also be supplied again.
- a preferred embodiment of the invention which is characterized by particularly stable conditions from a dynamic point of view, and also in relation to the measuring system, is characterized in that three measuring heads arranged offset by 120 ° over the circumference of the ring surface to be processed are used. - The measured values can be taken from the individual measuring heads or from the measuring medium flows supplied to the individual measuring heads and evaluated individually or in an integrated manner.
- the device shown in the figures is intended for fine grinding rings 1 on the inner ring surface (FIGS. 1 and 2) or on the outer ring surface (FIG. 3).
- a workpiece holder 2 for the rings 1 to be machined can first be seen, the clamping and centering taking place via mechanical clamping elements 3. 2, it can be seen that a ring 1 to be machined, which is received by the workpiece holder 2. B. is rotated via a driver 4.
- measuring heads 5 are provided which are adjustable in the radial direction with respect to the surface to be machined. This setting can be made now and then in the radial direction, which was indicated by a double arrow.
- a very fine gap can be set between the ring surface to be machined and the measuring head 5. 1 and 3, this gap was shown enlarged with considerable exaggeration.
- the gap width is generally in the ⁇ range.
- the measuring heads 5 are equidistantly distributed over the circumference of the ring surface to be machined. They each have at least one nozzle opening 6, from which a hydraulic measuring means 7 which coincides with the flushing agent emerges. It enters the measuring and rinsing agent layer 7, which has been drawn in an exaggerated thickness, without any free radiation. It forms between the ring surface to be machined and each of the measuring heads 5.
- the measuring heads 5 are designed as measuring shoes, the measuring surface curvature the ring surface to be machined is adapted. As shown in FIG. 2, the nozzle openings 6 open into the measuring surface. In the exemplary embodiment and according to a preferred embodiment of the invention, the nozzle openings 6 of all measuring heads 5 have the same diameter. They are also set up to deliver the same flow of measuring medium. In Fig. 3 it was indicated that the measuring heads 5 can also have a nozzle tube 8 extending in the radial direction. - The procedure described above can be implemented very easily with such devices. If it is a matter of machining roller bearing races, the measuring heads 5 can be inserted into the grooves of the rings by a radial adjustment and brought into the working position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Verfahren zum Feinschleifen von Ringen (1) auf der Ringaußenfläche oder auf der Ringinnenfläche, insbes. zum Feinschleifen von Wälzlagerlaufringen, unter Zuführung einer Spülflüssigkeit. Ein zu bearbeitender Ring wird in einer Werkstückaufnahme (2) mechanisch zentriert und eingespannt sowie um seine Achse angetrieben. Die zu bearbeitende Ringfläche wird beim Schleifvorgang einer Vermessung unterworfen. Der Schleifvorgang wird nach Maßgabe der Vermessung geregelt oder gesteuert. Eine berührungslose Vermessung wird mit zumindest zwei gleichen Meßköpfen (5) durchgeführt, aus denen Spülflüssigkeit als hydraulisches Meßmittel (7) aus jeweils zumindest einer Düsenöffnung austritt. Das hydraulische Meßmittel wird freistrahlfrei in die Spülflüssigkeitsschicht eingeführt, die die zu bearbeitende Ringfläche mitnimmt und die sich zwischen dem Meßkopf (5) und der Ringfläche ausbildet. - Auch eine Vorrichtung zur Durchführung des Verfahrens wird angegeben. <IMAGE>Method for fine grinding rings (1) on the outer ring surface or on the inner ring surface, in particular for fine grinding of rolling bearing races, with the addition of a rinsing liquid. A ring to be machined is mechanically centered and clamped in a workpiece holder (2) and driven around its axis. The ring surface to be machined is subjected to a measurement during the grinding process. The grinding process is regulated or controlled in accordance with the measurement. A contactless measurement is carried out with at least two identical measuring heads (5), from which rinsing liquid emerges as hydraulic measuring means (7) from at least one nozzle opening. The hydraulic measuring means is introduced free of jets into the rinsing liquid layer, which takes along the ring surface to be machined and which forms between the measuring head (5) and the ring surface. - An apparatus for performing the method is also specified. <IMAGE>
Description
Die Erfindung betrifft ein Verfahren zum Feinschleifen von Ringen auf der Ringaußenfläche oder auf der Ringinnenfläche, insbesondere zum Feinschleifen von Wälzlagerlaufringen, unter Zuführung einer Spülmittelmenge als Spülflüssigkeit, wobei ein zu bearbeitender Ring in einer Werkstückaufnahme mechanisch zentriert sowie um seine Achse angetrieben wird, und wobei die zu bearbeitende Ringfläche beim Schleifvorgang einer Vermessung unterworfen wird sowie der Schleifvorgang nach Maßgabe der Vermessung gesteuert und/oder geregelt wird. Die Erfindung betrifft außerdem Vorrichtungen für die Durchführung eines solchen Verfahrens. Es versteht sich, daß die Meßwerte der Vermessung auf geeignete Art und Weise elektrisch aufgenommen und ausgewertet werden, wozu die modernen, insbes. elektronischen Hilfsmittel der Meß- und Regeltechnik eine Mehrzahl von Möglichkeiten bieten, und zwar auch rechnergestützt. Die Steuerung der Regelung erfolgt nach Maßgabe des vorgegebenen Werkstoffabtrages. Insbes. bei Wälzlagerringen für hochtourige Wälzlager werden an die Genauigkeit des Werkstoffabtrages hohe Anforderungen gestellt. Außerdem muß sichergestellt werden, daß die Rundheit der Werkstücke bei der Bearbeitung nicht leidet. Mechanisch zentriert bedeuted, daß mit Gleitschuhen und/oder sogenannten Rollenschuhen oder auch mit einem Dreibackenfutter gearbeitet wird. Die Zentrierung erfolgt vorsichtig. Nichtsdestoweniger müssen wegen der mechanischen Zentrierung in bezug auf die Rundheit leichte Verformungen in Kauf genommen werden.The invention relates to a method for fine grinding rings on the outer ring surface or on the inner ring surface, in particular for fine grinding roller bearing races, with the addition of a quantity of detergent as the rinsing liquid, a ring to be machined being mechanically centered in a workpiece holder and driven about its axis, and the ring surface to be machined is subjected to a measurement during the grinding process and the grinding process is controlled and / or regulated in accordance with the measurement. The invention also relates to devices for performing such a method. It goes without saying that the measurement values of the measurement are recorded and evaluated electrically in a suitable manner, for which purpose the modern, in particular electronic aids of measurement and control technology offer a multitude of possibilities, and also with computer support. The control is controlled in accordance with the specified material removal. Esp. In the case of rolling bearing rings for high-speed rolling bearings, high demands are placed on the accuracy of the material removal. It must also be ensured that the roundness of the workpieces does not suffer during machining. Mechanically centered means that one works with sliding shoes and / or so-called roller shoes or with a three-jaw chuck. The centering is done carefully. Nonetheless, slight deformations must be accepted due to the mechanical centering with regard to the roundness.
Im Rahmen von bekannten Maßnahmen, deren Analyse die Erfindung berücksichtigt, erfolgt die Vermessung mit Hilfe von mechanischen Fühlern, die mit geringem Andruck auf die zu bearbeitende Ringfläche aufgesetzt werden und die z. B. mit einer feinen Diamantspitze ausgerüstet sind. Dabei kann nicht ausgeschlossen werden, daß die Spitzen der Fühler Spuren auf der bearbeiteten Ringfläche hinterlassen. Auch kann die unvermeidbare geringe Unrundheit, die die zu bearbeitenden Ringe aufweisen, zu störenden Schwingungen im Meßsystem führen.In the context of known measures, the analysis of which the invention takes into account, the measurement is carried out with the aid of mechanical sensors which are placed with little pressure on the ring surface to be machined and which, for. B. are equipped with a fine diamond tip. It cannot be excluded that the tips of the feelers leave marks on the machined ring surface. The unavoidable slight out-of-roundness which the rings to be machined have can also lead to disturbing vibrations in the measuring system.
Im Rahmen von anderen bekannten Maßnahmen, an die die Erfindung anschließt, ist die Vermessung eine berührungslose Vermessung. Dazu wird ein Meßluftstrom, der im freien Strahl aus einer Düse austritt, auf die zu bearbeitende Fläche gerichtet, so daß zwischen der Düse und der zu bearbeitenden Fläche gleichsam ein Drosselspalt entsteht. Veränderungen der Spaltweite dieses Drosselspaltes, die auf unterschiedlichem Abstand der zu bearbeitenden Fläche und der Düse beruhen, bewirken in dem Luftstrom, der über eine Leitung der Düse zugeführt wird, Druckschwankungen, die meßtechnisch erfaßt und in der beschriebenen Weise ausgewertet werden. Hier ist bei hohen Anforderungen die Meßgenauigkeit nicht ausreichend und auch hier können störende Schwingungen nicht ausgeschlossen werden. Endlich ist im Zusammenhang mit der Bearbeitung von ebenen Flächen durch Feinschleifen vorgeschlagen worden, einen Flüssigkeitsstrahl, nämlich einen Ölstrahl, gleichsam als Fühler einzusetzen. Nicht zum Stand der Technik gehörende Versuche, mit einem solchen Flüssigkeitsstrahl bei einem Verfahren zum Feinschleifen von Ringen auf der Ringaußenfläche oder Ringinnenfläche, insbes. beim Feinschleifen von Wälzlagerlaufringen, zu arbeiten, führten wegen mangelnder Genauigkeit nicht zum Erfolg.In the context of other known measures to which the invention is connected, the measurement is a contactless measurement. For this purpose, a flow of measuring air, which emerges in a free jet from a nozzle, is directed onto the surface to be machined, so that a throttle gap is created between the nozzle and the surface to be machined. Changes in the gap width of this throttle gap, which are based on different distances between the surface to be machined and the nozzle, cause pressure fluctuations in the air flow which is supplied via a line to the nozzle, which fluctuations are measured and evaluated in the manner described. The measurement accuracy is not sufficient for high requirements and disturbing vibrations cannot be excluded here either. Finally, in connection with the processing of flat surfaces by fine grinding, it has been proposed to use a liquid jet, namely an oil jet, as a sensor. Attempts not belonging to the state of the art, with such a liquid jet at one Processes for fine grinding rings on the outer or inner surface of the ring, especially when fine-grinding rolling bearing races, did not lead to success due to the lack of accuracy.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Feinschleifen von Ringen auf der Ringaußenfläche oder auf der Ringinnenfläche, insbes. zum Feinschleifen von Wälzlagerlaufringen, anzugeben, mit dem die Vermessung mit großer Genauigkeit und ohne Störungen durch Schwingungen erfolgen kann.The invention has for its object to provide a method for fine grinding rings on the outer ring surface or on the inner ring surface, esp.
Zur Lösung dieser Aufgabe lehrt die Erfindung, daß eine berührungslose Vermessung mit zumindest zwei gleichen Meßköpfen durchgeführt wird, aus denen Spülflüssigkeit als hydraulisches Meßmittel aus jeweils zumindest einer Düsenöffnung austritt, und daß das hydraulische Meßmittel freistrahlfrei in die Spülflüssigkeitsschicht eingeführt wird, die die zu bearbeitende Ringfläche mitnimmt und die sich zwischen dem Meßkopf und der Ringfläche ausbildet.- Die Erfindung geht von der Erkenntnis aus, daß die beschriebenen störenden Schwingungen im Meßsystem, trotz der einspannungsbedingten Unrundheit, nicht mehr auftreten, wenn in der beschriebenen Weise mit einem hydraulischen Meßmittel gearbeitet wird und dieses in die Spülmittelschicht eingeführt wird, die sich auf der zu bearbeitenden Ringfläche, wie beschrieben, ausbildet. Diese Spülmittelschicht ist besonders ausgeprägt, wenn es sich um die feinschleifende Bearbeitung von Ringinnenflächen handelt. Dabei vermischen sich das Spülmittel und das Meßmittel, was jedoch im Rahmen der Erfindung nicht zu Problemen führt, weil als Meßmittel die Spülflüssigkeit eingesetzt ist. Das Meßmittel bewirkt eine ausreichende Dämpfung im Meßsystem und unterdrückt dadurch störende Schwingungen, ohne die Meßgenauigkeit zu beeinträchtigen. Überraschenderweise wirkt sich die Unrundheit, die die Ringe mitbringen oder die einspannungsbedingt ist, nicht störend auf die Meßgenauigkeit aus. Es versteht sich, daß die Leitung, mit der das Meßmittel zugeführt wird, ausreichend starr ausgeführt sein muß, so daß im Leitungssystem Schwingungen nicht generiert werden.To achieve this object, the invention teaches that a contactless measurement is carried out with at least two identical measuring heads, from which rinsing liquid emerges as hydraulic measuring means from at least one nozzle opening each, and that the hydraulic measuring means is introduced into the rinsing liquid layer free of radiation, which is the annular surface to be machined takes along and which forms between the measuring head and the annular surface. The invention is based on the knowledge that the disturbing vibrations described in the measuring system, despite the clamping-related out-of-roundness, no longer occur when working in the manner described with a hydraulic measuring means and this is introduced into the detergent layer, which forms on the ring surface to be processed, as described. This detergent layer is particularly pronounced when it comes to the fine grinding of inner ring surfaces. The washing-up liquid and the measuring device mix, but this does not increase within the scope of the invention Problems arise because the rinsing liquid is used as the measuring means. The measuring device provides sufficient damping in the measuring system and thereby suppresses disturbing vibrations without impairing the measuring accuracy. Surprisingly, the out-of-roundness that the rings bring with them or that is caused by the clamping does not have a disruptive effect on the measuring accuracy. It goes without saying that the line with which the measuring means is supplied must be sufficiently rigid so that vibrations are not generated in the line system.
Im Rahmen der Erfindung hat sich gezeigt, daß die Messungen besonders genau durchgeführt werden können, wenn die Meßköpfe meßkraftkompensierend äquidistant über den Umfang der zu bearbeitenden Ringfläche angeordnet sind. Zweckmäßigerweise wird mit identisch gleichen Meßköpfen gearbeitet. Ohne Beeinträchtigung der vorsichtigen Zentrierung und ohne andere Störungen kann bei meßkraftkompensierender Anordnung das Meßmittel mit einem verhältnismäßig hohen Druck zugeführt werden, was sich meßtechnisch positiv auswirkt. Von besonderem Vorteil ist es, mit einer zugleich kühlwirksamen Meßmittelmenge zu arbeiten. Auf diese Weise kann verhindert werden, daß die zu bearbeitenden Ringe eine Ungenauigkeit wegen Wärmeverzugs aus der Bearbeitungswärme heraus erfahren. Im allgemeinen wird man die Meßmittelmenge und die Spülmittelmenge dem gleichen Druckmittelsystem entnehmen und auch wieder zuführen.In the context of the invention it has been shown that the measurements can be carried out particularly precisely if the measuring heads are arranged equidistantly to compensate for measuring force over the circumference of the ring surface to be machined. It is expedient to work with identically identical measuring heads. Without impairing the careful centering and without other disturbances, the measuring means can be supplied at a relatively high pressure in a measuring-compensating arrangement, which has a positive effect on the measuring technology. It is particularly advantageous to work with a quantity of measuring medium which is effective at the same time. In this way it can be prevented that the rings to be machined experience an inaccuracy due to heat distortion from the machining heat. In general, the quantity of measuring medium and the quantity of rinsing agent will be taken from the same pressure medium system and will also be supplied again.
Im einzelnen bestehen im Rahmen der Erfindung mehrere Möglichkeiten der weiteren Ausbildung und Gestaltung. Im einfachsten Falle wird man mit zwei diametral gegenüberliegenden Meßköpfen arbeiten. Eine bevorzugte Ausführungsform der Erfindung, die sich durch besonders stabile Verhältnisse in dynamischer Hinsicht auszeichnet, und zwar auch in bezug auf das Meßsystem, ist dadurch gekennzeichnet, daß mit drei über den Umfang der zu bearbeitenden Ringfläche um 120° versetzt angeordneten Meßköpfen gearbeitet wird. - Die Meßwerte können von den einzelnen Meßköpfen bzw. von den den einzelnen Meßköpfen zugeführten Meßmittelströmen abgenommen und einzeln oder integriert ausgewertet werden.In particular, there are several possibilities for further training and design within the scope of the invention. in the In the simplest case, one will work with two diametrically opposite measuring heads. A preferred embodiment of the invention, which is characterized by particularly stable conditions from a dynamic point of view, and also in relation to the measuring system, is characterized in that three measuring heads arranged offset by 120 ° over the circumference of the ring surface to be processed are used. - The measured values can be taken from the individual measuring heads or from the measuring medium flows supplied to the individual measuring heads and evaluated individually or in an integrated manner.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigen
- Fig. 1
- das Schema einer Vorrichtung für die Durchführung des erfindungsgemäßen Verfahrens als Ansicht in Richtung der Achse eines zu bearbeitenden Ringes,
- Fig. 2
- einen Schnitt in Richtung A-A durch den Gegenstand nach Fig. 1 mit einigen konstruktiven Details und
- Fig. 3
- entsprechend der Fig. 1 eine andere Ausführungsform einer erfindungsgemäßen Vorrichtung.
- Fig. 1
- the diagram of a device for performing the method according to the invention as a view in the direction of the axis of a ring to be machined,
- Fig. 2
- a section in the direction AA through the object of FIG. 1 with some constructive details and
- Fig. 3
- another embodiment of a device according to the invention.
Die in den Figuren dargestellte Vorrichtung ist zum Feinschleifen von Ringen 1 auf der Ringinnenfläche (Fig. 1 und 2) oder auf der Ringaußenfläche (Fig. 3) bestimmt.The device shown in the figures is intended for
Man erkennt zunächst eine Werkstückaufnahme 2 für die zu bearbeitenden Ringe 1, wobei die Einspannung und Zentrierung über mechanische Einspannelemente 3 erfolgt. Nimmt man die Fig. 2 hinzu, so erkennt man, daß ein von der Werkstückaufnahme 2 aufgenommener zu bearbeitender Ring 1 z. B. über einen Treiber 4 rotierend mitgenommen wird.A
Die zu bearbeitende Ringfläche erfährt bei einem Schleifvorgang eine berührungslose Vermessung. In den Fig. 1 und 3 erkennt man, daß dazu Meßköpfe 5 vorgesehen sind, die in radialer Richtung in bezug auf die zu bearbeitende Oberfläche einstellbar sind. Diese Einstellung kann in radialer Richtung hin und wieder zurück erfolgen, was durch Doppelpfeil angedeutet wurde. Dabei läßt sich ein sehr feiner Spalt zwischen der zu bearbeitenden Ringfläche und dem Meßkopf 5 einstellen. In den Fig. 1 und 3 wurde dieser Spalt mit erheblicher Übertreibung vergrößert dargestellt. Die Spaltweite liegt im allgemeinen im µ-Bereich. Die Meßköpfe 5 sind meßkraftkompensierend äquidistant über den Umfang der zu bearbeitenden Ringfläche verteilt. Sie besitzen jeweils zumindest eine Düsenöffnung 6, aus der ein mit dem Spülmittel übereinstimmendes hydraulisches Meßmittel 7 austritt. Es tritt freistrahlfrei in die Meß- und Spülmittelschicht 7 ein, die übertrieben dick gezeichnet worden ist. Sie bildet sich zwischen der zu bearbeitenden Ringfläche und jedem der Meßköpfe 5 aus.The ring surface to be machined undergoes a contactless measurement during a grinding process. 1 and 3 it can be seen that for this
In der Fig. 1 wurde angedeutet, daß die Meßköpfe 5 als Meßschuhe ausgeführt sind, deren Meßfläche krümmungsmäßig der zu bearbeitenden Ringfläche angepaßt ist. Die Düsenöffnungen 6 münden, wie die Fig. 2 zeigt, in der Meßfläche. Im Ausführungsbeispiel und nach bevorzugter Ausführungsform der Erfindung haben die Düsenöffnungen 6 aller Meßköpfe 5 den gleichen Durchmesser. Sie sind auch zur Abgabe gleicher Meßmittelmengenströme eingerichtet. In der Fig. 3 wurde angedeutet, daß die Meßköpfe 5 auch ein in radialer Richtung verlaufendes Düsenrohr 8 aufweisen können. - Die eingangs beschriebene Verfahrensweise läßt sich mit solchen Vorrichtungen sehr einfach verwirklichen. Handelt es sich um die Bearbeitung von Wälzlagerlaufringen, so können die Meßköpfe 5 durch eine radiale Verstellung in die Laufrillen der Ringe eingeführt und in Arbeitsposition gebracht werden.In Fig. 1 was indicated that the measuring heads 5 are designed as measuring shoes, the measuring surface curvature the ring surface to be machined is adapted. As shown in FIG. 2, the
Claims (10)
wobei ein zu bearbeitender Ring in einer Werkstückaufnahme mechanisch zentriert sowie um seine Achse angetrieben wird,
und wobei die zu bearbeitende Ringfläche beim Schleifvorgang einer Vermessung unterworfen wird sowie der Schleifvorgang nach Maßgabe der Vermessung geregelt oder gesteuert wird, dadurch gekennzeichnet, daß eine berührungslose Vermessung mit zumindest zwei gleichen Meßköpfen durchgeführt wird, aus denen Spülflüssigkeit als hydraulisches Meßmittel aus jeweils zumindest einer Düsenöffnung austritt, und daß das hydraulische Meßmittel freistrahlfrei in die Spülflüssigkeitsschicht eingeführt wird, die die zu bearbeitende Ringfläche mitnimmt und die sich zwischen dem Meßkopf und der Ringfläche ausbildet.Process for fine grinding rings on the outer ring surface or on the inner ring surface, in particular for fine grinding rolling bearing races, with the addition of a quantity of detergent as the rinsing liquid,
a ring to be machined is mechanically centered in a workpiece holder and driven around its axis,
and wherein the ring surface to be machined is subjected to a measurement during the grinding process and the grinding process is regulated or controlled in accordance with the measurement, characterized in that non-contact measurement is carried out with at least two identical measuring heads, from which rinsing liquid as hydraulic measuring means in each case from at least one nozzle opening emerges, and that the hydraulic measuring means is introduced free of jets into the rinsing liquid layer which takes along the ring surface to be machined and which forms between the measuring head and the ring surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4033725A DE4033725A1 (en) | 1990-10-24 | 1990-10-24 | METHOD AND DEVICE FOR FINELY GRINDING RINGS ON THE RING EXTERIOR OR ON THE RING INSIDE |
| DE4033725 | 1990-10-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0482397A2 true EP0482397A2 (en) | 1992-04-29 |
| EP0482397A3 EP0482397A3 (en) | 1992-08-05 |
| EP0482397B1 EP0482397B1 (en) | 1994-08-31 |
Family
ID=6416902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91116891A Expired - Lifetime EP0482397B1 (en) | 1990-10-24 | 1991-10-03 | Procedure of and device for finish-grinding of rings on the outer or inner area |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5174069A (en) |
| EP (1) | EP0482397B1 (en) |
| JP (1) | JP2530959B2 (en) |
| CZ (1) | CZ279085B6 (en) |
| DE (2) | DE9017919U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2222392C1 (en) * | 2002-06-04 | 2004-01-27 | Годунов Виктор Борисович | Part expansion method |
| CN112692713A (en) * | 2020-12-17 | 2021-04-23 | 江园 | High efficiency pipeline machining polishing equipment |
| CN114260817A (en) * | 2021-12-24 | 2022-04-01 | 鹰潭市钲旺科技有限公司 | Multi-surface synchronous stepping copper-clad copper wire surface polishing device |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033727C1 (en) * | 1990-10-24 | 1992-02-20 | Ernst Thielenhaus Kg, 5600 Wuppertal, De | |
| US6471573B1 (en) | 2001-02-28 | 2002-10-29 | Dana Corporation | Adapter for supplying lubricating fluid to a workpiece-engaging tool |
| JP4523304B2 (en) * | 2004-03-10 | 2010-08-11 | ケーエスエス株式会社 | Ball screw surface lapping device |
| CN103831701A (en) * | 2012-11-23 | 2014-06-04 | 大连爱宇机械制造有限公司 | Bearing collar polishing machine |
| CN104227546B (en) * | 2014-08-13 | 2017-04-12 | 无锡市索菲机械电子有限公司 | Advancing/retracting mechanism for superfinishing head spindle of bearing raceway superfinisher and use method of advancing/retracting mechanism |
| DE102015215624A1 (en) * | 2015-08-17 | 2017-02-23 | Schaeffler Technologies AG & Co. KG | Process for producing bearing components by means of a production line, production line and manufacturing plant |
| CN105290896B (en) * | 2015-11-16 | 2017-10-24 | 耒阳新达微科技有限公司 | A kind of fixed sanding apparatus of adjustable bearing processing |
| CN105485073A (en) * | 2016-01-17 | 2016-04-13 | 浙江陀曼智造科技有限公司 | Hydraulic system of super-finishing machine |
| CN106625125B (en) * | 2016-12-25 | 2018-08-17 | 重庆岷龙机械制造有限公司 | Gear tooth slot grinding device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2777321A (en) * | 1953-09-29 | 1957-01-15 | Barnes Drill Co | Fluid jet size measuring device |
| DE1176880B (en) * | 1956-01-19 | 1964-08-27 | Ulvsunda Verkstaeder Aktiebola | Pneumatic teaching on precision grinding machines |
| DE1677137B2 (en) * | 1964-04-17 | 1973-08-30 | Stahle, Kurt, 6550 Bad Kreuznach | METHOD OF CONTINUOUSLY MEASURING THE DIAMETER OF A HOLE MACHINED BY A HONING TOOL |
| CH536691A (en) * | 1971-10-13 | 1973-05-15 | Sim Sa Ets | Device on a grinding machine for determining the position of the working surface of a grinding wheel |
| DE2339726B2 (en) * | 1973-08-06 | 1978-06-08 | Supfina Maschinenfabrik Hentzen Kg, 5630 Remscheid | Device for fine machining of groove-shaped surfaces with a circular arc-shaped profile in ring-shaped workpieces |
| CH663744A5 (en) * | 1984-09-17 | 1988-01-15 | Rene Keller Dr | DEVICE FOR GRINDING THE INTERIOR OR EXTERIOR OF A RING-SHAPED WORKPIECE. |
-
1990
- 1990-10-24 DE DE9017919U patent/DE9017919U1/en not_active Expired - Lifetime
- 1990-10-24 DE DE4033725A patent/DE4033725A1/en active Granted
-
1991
- 1991-10-03 EP EP91116891A patent/EP0482397B1/en not_active Expired - Lifetime
- 1991-10-18 US US07/778,739 patent/US5174069A/en not_active Expired - Fee Related
- 1991-10-23 CZ CS913221A patent/CZ279085B6/en unknown
- 1991-10-24 JP JP3277590A patent/JP2530959B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2222392C1 (en) * | 2002-06-04 | 2004-01-27 | Годунов Виктор Борисович | Part expansion method |
| CN112692713A (en) * | 2020-12-17 | 2021-04-23 | 江园 | High efficiency pipeline machining polishing equipment |
| CN114260817A (en) * | 2021-12-24 | 2022-04-01 | 鹰潭市钲旺科技有限公司 | Multi-surface synchronous stepping copper-clad copper wire surface polishing device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0482397A3 (en) | 1992-08-05 |
| CZ279085B6 (en) | 1994-12-15 |
| JPH05131353A (en) | 1993-05-28 |
| JP2530959B2 (en) | 1996-09-04 |
| DE9017919U1 (en) | 1992-12-17 |
| CS322191A3 (en) | 1992-05-13 |
| US5174069A (en) | 1992-12-29 |
| DE4033725A1 (en) | 1992-04-30 |
| DE4033725C2 (en) | 1993-02-25 |
| EP0482397B1 (en) | 1994-08-31 |
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