EP0459235A1 - Device for feeding cooking and lubricating means on a high-speed external grinding machine - Google Patents

Device for feeding cooking and lubricating means on a high-speed external grinding machine Download PDF

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Publication number
EP0459235A1
EP0459235A1 EP91107910A EP91107910A EP0459235A1 EP 0459235 A1 EP0459235 A1 EP 0459235A1 EP 91107910 A EP91107910 A EP 91107910A EP 91107910 A EP91107910 A EP 91107910A EP 0459235 A1 EP0459235 A1 EP 0459235A1
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EP
European Patent Office
Prior art keywords
grinding wheel
cooling lubricant
funnel
feed hopper
nozzle
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.)
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Application number
EP91107910A
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German (de)
French (fr)
Inventor
Dieter Dr.-Ing. Simpfendörfer
Phon Dipl.-Ing. Dao-Xuan
Walter Weil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diskus Werke Frankfurt am Main AG
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Diskus Werke Frankfurt am Main AG
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Publication date
Application filed by Diskus Werke Frankfurt am Main AG filed Critical Diskus Werke Frankfurt am Main AG
Publication of EP0459235A1 publication Critical patent/EP0459235A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/045—Protective covers for the grinding wheel with cooling means incorporated

Definitions

  • the invention relates to a device for supplying cooling lubricant to a machine for high-speed peripheral grinding of external contours with a grinding wheel encapsulated by a protective hood.
  • the amount of heat generated in the contact zone between the grinding wheel and the workpiece must be minimized and removed as quickly and comprehensively as possible using an auxiliary medium.
  • a cooling lubricant is supplied to the contact zone, the penetration of which into the active gap becomes more difficult as the peripheral speed increases due to the air cushion surrounding the grinding wheel.
  • the cooling lubricant in known systems is under high pressure and conveyed with a large volume flow from nozzle-like openings.
  • Free jet nozzles or shoe nozzles are known for this.
  • Open-jet nozzles generate a free-flowing cooling lubricant jet which, due to its high speed, should penetrate the air cushion surrounding the grinding wheel at a suitable point, which requires a high level of technical effort.
  • Shoe nozzles are largely adapted to the curvature of the grinding wheel and are closed on all sides except for an opening to the grinding wheel, so that the cooling lubricant can penetrate better into the air boundary layer; however, they become ineffective to the extent that the grinding wheel diameter decreases due to wear.
  • DE-OS 20 23 200 it is also known to use a funnel-shaped nozzle which opens towards the grinding wheel and overlaps the same, with a nozzle lip which is adjustable in the direction of rotation of the grinding wheel to prevent the formation of an air cushion.
  • the device according to the invention according to the preamble of claim 1 is characterized in that the feed hopper is pivotable about an axis parallel to the grinding wheel axis and has a motor-adjustable slide on the outlet side for metering the cooling lubricant volume flow.
  • the nozzle which is variable in its orientation but is preferably arranged radially, thus forms in the outflow area a chamber which is closed on all sides except for narrow gaps and has a defined outlet cross section for the cooling lubricant.
  • the feed hopper is arranged within the protective hood.
  • the grinding wheel is so closely surrounded on its circumference that the unhindered build-up of a stable air cushion as a result of its high circumferential speed is avoided from the outset, and on the other hand, the nozzle itself is designed in such a way that the thin air layer remaining on the circumference of the grinding wheel before reaching the Is deflected inside the nozzle.
  • the feed hopper is inclined at approximately 45 ° against the connecting line of the center points of the grinding wheel and the workpiece in the direction of the opposite direction of the wheel and for this purpose approximately angularly symmetrical to said Connecting line, a drain opening for the cooling lubricant is provided in the protective hood.
  • This funnel 6 covers the grinding wheel 3 on both sides at 7 and is closed on the side of the grinding wheel 3 running in the direction of rotation R by means of an adjustable nozzle lip 8 and on the running side by means of an adjustable slide 9 for metering the quantity of cooling lubricant running out per unit of time by means of drive 10 shut down.
  • the profile of the metering slide facing the grinding wheel is obtained by grinding.
  • the nozzle lip 8 facing away from the workpiece is e.g. by means of an eccentric device 11 with an elongated hole guide 12, depending on the nozzle orientation, can be sensitively adjusted.
  • the aim is to bring the nozzle lip 8 so close to the surface of the grinding wheel that the air cushion surrounding the rotating grinding wheel 3 due to the high peripheral speed is prevented from penetrating into the nozzle chamber (feed funnel 6), as a result of which the interior of the nozzle is filled with cooling lubricant at low pressure and the acceleration of the same to high flow speed becomes possible by utilizing the rotational movement of the grinding wheel.
  • the feed hopper 6 is directed as a nozzle chamber when the workpiece 13 is fed horizontally at approximately 45 ° against the connecting line of the center points of the grinding wheel 3 and workpiece 13, below which is approximately angularly symmetrical to the said one Connection line provided the drain opening 14 for the cooling lubricant in the protective hood 2.
  • the orientation of the feed funnel 6 can be changed by rotating about an axis S parallel to the grinding wheel axis, the smoothness of the nozzle swiveling movement about the axis of rotation S being set by means of two locknuts 15 which are countered to one another.
  • the selected nozzle orientation which is based on the radial direction, is maintained by clamping via one or more screws 17 engaging in a kidney-shaped groove 16; the invention provides to supply the cooling lubricant M to the nozzle (funnel 6) laterally in a pipe or hose line 18 such that its center line coincides with the axis of rotation S of the feed funnel 6.
  • the protective hood 2 is provided with an opening flap 19 arranged on the front, the closure of which is monitored by an inductive sensor 20, and which is linked by a locking magnet 21 to the speed of the tool motor in such a way that the locking magnet 21 opens the protective hood 2 only possible after grinding wheel standstill.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

The device for feeding cooling and lubricating means on a high-speed external grinding machine has a grinding wheel enclosed by a safety guard and having a funnel-like nozzle which opens towards the grinding wheel, covers the same and has a nozzle lip which can be adjusted on the inlet side in the direction of rotation of the grinding wheel, in which arrangement the feed funnel can be pivoted about an axis parallel to the grinding wheel axis and has on the discharge side a slide, adjustable by motor drive, for metering the volumetric flow of the cooling and lubricating means. …<IMAGE>…

Description

Die Erfindung bezieht sich auf eine Einrichtung zur Kühlschmiermittelzufuhr an einer Maschine zum Hochgeschwindigkeits-Umfangsschleifen von Außenkonturen mit einer durch eine Schutzhaube gekapselten Schleifscheibe.The invention relates to a device for supplying cooling lubricant to a machine for high-speed peripheral grinding of external contours with a grinding wheel encapsulated by a protective hood.

Beim Umfangsschleifen von Außenkonturen muß die in der Kontaktzone zwischen der Schleifscheibe und dem Werkstück entstehende Wärme in ihrer Menge minimiert und so rasch umd umfassend wie möglich über ein Hilfsmedium abgeführt werden. Zu diesem Zweck wird der Kontaktzone ein Kühlschmiermittel zugeführt, dessen Eindringen in den Wirkspalt mit zunehmender Umfangsgeschwindigkeit durch das die Schleifscheibe umgebende Luftpolster erschwert wird. Zur Durchdringung des besagten Luftpolsters wird das Kühlschmiermittel bei bekannten Systemen unter hohem Druck und mit großem Volumenstrom aus düsenartigen Öffnungen gefördert.When grinding peripheral contours, the amount of heat generated in the contact zone between the grinding wheel and the workpiece must be minimized and removed as quickly and comprehensively as possible using an auxiliary medium. For this purpose, a cooling lubricant is supplied to the contact zone, the penetration of which into the active gap becomes more difficult as the peripheral speed increases due to the air cushion surrounding the grinding wheel. To penetrate said air cushion, the cooling lubricant in known systems is under high pressure and conveyed with a large volume flow from nozzle-like openings.

Hierfür sind Freistrahldüsen oder Schuhdüsen bekannt. Freistrahldüsen erzeugen einen freiströmenden Kühlschmiermittelstrahl, der infolge seiner hohen Geschwindigkeit das die Schleifscheibe umgebende Luftpolster an geeigneter Stelle durchstoßen soll, was einen hohen technischen Aufwand erfordert. Schuhdüsen sind der Krümmung der Schleifscheibe weitgehend angepaßt und bis auf eine Öffnung zur Schleifscheibe hin allseitig geschlossen, so daß das Kühlschmiermittel besser in die Luftgrenzschicht eindringen kann; sie werden aber in dem Maße unwirksamer, wie der Schleifscheibendurchmesser verschleißbedingt abnimmt.Free jet nozzles or shoe nozzles are known for this. Open-jet nozzles generate a free-flowing cooling lubricant jet which, due to its high speed, should penetrate the air cushion surrounding the grinding wheel at a suitable point, which requires a high level of technical effort. Shoe nozzles are largely adapted to the curvature of the grinding wheel and are closed on all sides except for an opening to the grinding wheel, so that the cooling lubricant can penetrate better into the air boundary layer; however, they become ineffective to the extent that the grinding wheel diameter decreases due to wear.

Nach der DE-OS 20 23 200 ist es weiter bekannt, eine sich zur Schleibscheibe hin öffnende, dieselbe überdeckende, trichterförmige Düse mit in Drehrichtung der Schleifscheibe einlaufseitig einstellbarer Düsenlippe zur Unterbindung der Ausbildung eines Luftpolsters zu verwenden. Demgegenüber ist es Aufgabe der Vorrichtung gemäß der Erfindung, vor allem zum Hochgeschwindigkeitsschleifen eine optimale Lösung für die Kühlschmiermittelzufuhr mit Volumenstromsteuerung oder -regelung zu schaffen.According to DE-OS 20 23 200, it is also known to use a funnel-shaped nozzle which opens towards the grinding wheel and overlaps the same, with a nozzle lip which is adjustable in the direction of rotation of the grinding wheel to prevent the formation of an air cushion. In contrast, it is an object of the device according to the invention to provide an optimal solution for the supply of cooling lubricant with volume flow control or regulation, especially for high-speed grinding.

Zur Lösung dieser Aufgabe kennzeichnet sich die Einrichtung gemäß der Erfindung nach dem Oberbegriff des Anspruchs 1 dadurch, daß der Zufuhrtrichter um eine zur Schleifscheibenachse parallele Achse verschwenkbar ist und an der auslaufenden Seite einen motorisch verstellbaren Schieber zur Dosierung des Kühlschmiermittel-Volumenstroms aufweist. Die in ihrer Orientierung veränderliche, jedoch bevorzugt radial angeordnete Düse bildet somit im Ausströmungsbereich eine bis auf enge Spalte allseits geschlossene Kammer mit definiertem Auslaßquerschnitt für das Kühlschmiermittel.To solve this problem, the device according to the invention according to the preamble of claim 1 is characterized in that the feed hopper is pivotable about an axis parallel to the grinding wheel axis and has a motor-adjustable slide on the outlet side for metering the cooling lubricant volume flow. The The nozzle, which is variable in its orientation but is preferably arranged radially, thus forms in the outflow area a chamber which is closed on all sides except for narrow gaps and has a defined outlet cross section for the cooling lubricant.

Im einzelnen ist der Zufuhrtrichter innerhalb der Schutzhaube angeordnet. Hierbei wird die Schleifscheibe zum einen an ihrem Umfang so dicht umgeben, daß der ungehinderte Aufbau eines stabilen Luftpolsters als Folge ihrer hohen Umfangsgeschwindigkeit von vornherein unterbleibt und zum anderen ist die Düse selbst so gestaltet, daß die am Umfang der Schleifscheibe verbleibende dünne Luftschicht vor Erreichen des Düseninnenraumes abgelenkt wird.In detail, the feed hopper is arranged within the protective hood. On the one hand, the grinding wheel is so closely surrounded on its circumference that the unhindered build-up of a stable air cushion as a result of its high circumferential speed is avoided from the outset, and on the other hand, the nozzle itself is designed in such a way that the thin air layer remaining on the circumference of the grinding wheel before reaching the Is deflected inside the nozzle.

Die hierdurch gewährleistete vollständige Eliminierung des bei konventionellen Kühlschmiermittelzuführsystemen störenden Luftpolsters erlaubt die Niederdruck-Befüllung des Düseninnenraumes mit Kühlschmiermittel und die Beschleunigung desselben auf hohe Strömungsgeschwindigkeit durch Ausnutzung der Rotationsbewegung der Schleifscheibe. Eine durch den Werkzeugverschleiß bedingte Beeinträchtigung des Förderverhaltens scheidet insbesondere bei monolagigen, mithin annähernd durchmesserkonstanten Schleifscheiben aus, deren Anwendung im Bereich des Hochgeschwindigkeitsbearbeitens üblich ist.The complete elimination of the air cushion, which is a problem with conventional coolant supply systems, is thereby ensured, allowing the interior of the nozzle to be filled with coolant at low pressure and accelerated to a high flow rate by utilizing the rotational movement of the grinding wheel. An impairment of the conveying behavior caused by the tool wear is particularly ruled out in the case of monolayer, thus approximately constant-diameter grinding wheels, the application of which is common in the field of high-speed machining.

Desweiteren ist vorgesehen, daß der Zufuhrtrichter unter etwa 45° gegen die Verbindungslinie der Mittelpunkte von Schleifscheibe und Werkstück in Scheibengegenlaufrichtung geneigt ist und hierzu etwa winkelsymmetrisch zur besagten Verbindungslinie eine Abflußöffnung für das Kühlschmiermittel in der Schutzhaube vorgesehen ist. Im Falle eines Werkzeugbruches werden hierdurch die auf die innere Umhüllung wirkenden Kräfte über Stege auf den Zentrierflansch des äußeren Teils der Schutzhaube übertragen und damit in den Werkzeugspindelstock eingeleitet. Die Befestigung der Schutzhaube auf einem Zentrieransatz des Spindelstockes ermöglicht, daß die Befestigungsschrauben durch tangential wegfliegende Bruchstücke der Schleifscheibe nach Überwinden des Reibschlusses an den Befestigungsflächen lediglich auf Schlagscherung beansprucht werden.Furthermore, it is provided that the feed hopper is inclined at approximately 45 ° against the connecting line of the center points of the grinding wheel and the workpiece in the direction of the opposite direction of the wheel and for this purpose approximately angularly symmetrical to said Connecting line, a drain opening for the cooling lubricant is provided in the protective hood. In the event of a tool breakage, the forces acting on the inner casing are thereby transmitted via webs to the centering flange of the outer part of the protective hood and are thus introduced into the tool headstock. The attachment of the protective hood on a centering projection of the headstock enables the attachment screws to be subjected to impact shear only after the frictional engagement on the attachment surfaces has been overcome by fragments of the grinding wheel flying away tangentially.

Weitere Einzelheiten ergeben sich aus der bevorzugten Ausführungsform einer Einrichtung zur Kühlschmiermittelzufuhr gemäß der Erfindung aus der Zeichnung mit zugehöriger Beschreibung und zwar zeigen:

Figur 1
den Querschnitt durch diese Einrichtung einschließlich gekapselter Schleifscheibe,
Figur 2
den Schnitt nach Linie A-B der Figur 1,
Figur 3
den Schnitt nach Linie C-D der Figur 1 und
Figur 4
die Teilansicht in Richtung X der Figur 2.
Further details emerge from the preferred embodiment of a device for supplying cooling lubricant according to the invention from the drawing with the associated description, namely:
Figure 1
the cross section through this device including encapsulated grinding wheel,
Figure 2
the section along line AB of Figure 1,
Figure 3
the section along line CD of Figure 1 and
Figure 4
the partial view in the direction X of Figure 2.

Wie aus der Zeichnung in Figur 1 bis 3 ersichtlich wird, ist die Einrichtung 1 zur Kühlschmiermittelzufuhr M beim Hochgeschwindigkeits-Umfangsschleifen in eine Schutzhaube 2, welche die Schleifscheibe 3 mittels angepaßter, durch Stege 4 gehaltener Schutzhülle 5 eng umgibt, integriert; sie besteht aus einem bevorzugt radial angeordneten sich zur Schleifscheibe 3 hin öffnenden Trichter 6 als Düsenraum. Dieser Trichter 6 überdeckt die Schleifscheibe 3 beidseits bei 7 und ist auf der in Drehrichtung R einlaufenden Seite der Schleifscheibe 3 mittels nachstellbarer Düsenlippe 8 geschlossen und auf der auslaufenden Seite mittels verstellbarem Schieber 9 zum Dosieren der pro Zeiteinheit auslaufenden Kühlschmiermittelmenge mittels Antrieb 10 zu öffnen und zu schließen. Hierbei ergibt sich das der Schleifscheibe zugewandte Profil des Dosierschiebers durch Einschleifen.As can be seen from the drawing in FIGS. 1 to 3, the device 1 for the supply of cooling lubricant M during high-speed circumferential grinding into a protective hood 2, which the grinding wheel 3 is adapted to by means of Ridges 4 held protective cover 5 tightly integrated; it consists of a funnel 6, which is preferably arranged radially and opens towards the grinding wheel 3, as a nozzle chamber. This funnel 6 covers the grinding wheel 3 on both sides at 7 and is closed on the side of the grinding wheel 3 running in the direction of rotation R by means of an adjustable nozzle lip 8 and on the running side by means of an adjustable slide 9 for metering the quantity of cooling lubricant running out per unit of time by means of drive 10 shut down. The profile of the metering slide facing the grinding wheel is obtained by grinding.

Die dem Werkstück abgewandte Düsenlippe 8 ist z.B. mittels einer Exzentervorrichtung 11 mit Langlochführung 12 je nach Düsenorientierung feinfühlig verstellbar. Ziel ist es, die Düsenlippe 8 so nahe an die Oberfläche der Schleifscheibe heranzuführen, daß das die rotierende Schleifscheibe 3 aufgrund der hohen Umfangsgeschwindigkeit umgebende Luftpolster von einem Eindringen in die Düsenkammer (Zuführtrichter 6) abgehalten wird, wodurch eine Niederdruck-Befüllung des Düseninnenraumes mit Kühlschmiermittel und die Beschleunigung desselben auf hohe Strömungsgeschwindigkeit durch Ausnutzung der Rotationsbewegung der Schleifscheibe möglich wird.The nozzle lip 8 facing away from the workpiece is e.g. by means of an eccentric device 11 with an elongated hole guide 12, depending on the nozzle orientation, can be sensitively adjusted. The aim is to bring the nozzle lip 8 so close to the surface of the grinding wheel that the air cushion surrounding the rotating grinding wheel 3 due to the high peripheral speed is prevented from penetrating into the nozzle chamber (feed funnel 6), as a result of which the interior of the nozzle is filled with cooling lubricant at low pressure and the acceleration of the same to high flow speed becomes possible by utilizing the rotational movement of the grinding wheel.

Der Zuführtrichter 6 ist als Düsenkammer bei waagerecht zugeführtem Werkstück 13 etwa unter 45° gegen die Verbindungslinie der Mittelpunkte von Schleifscheibe 3 und Werkstück 13 gerichtet, darunter ist etwa winkelsymmetrisch zur besagten Verbindungslinie die Abflußöffnung 14 für das Kühlschmiermittel in der Schutzhaube 2 vorgesehen.The feed hopper 6 is directed as a nozzle chamber when the workpiece 13 is fed horizontally at approximately 45 ° against the connecting line of the center points of the grinding wheel 3 and workpiece 13, below which is approximately angularly symmetrical to the said one Connection line provided the drain opening 14 for the cooling lubricant in the protective hood 2.

Die Orientierung des Zuführtrichters 6 ist durch Drehen um eine zur Schleifscheibenachse parallele Achse S veränderbar, wobei die Gängigkeit der Düsenschwenkbewegung um die Drehachse S über zwei zueinander gekonterten Nutmuttern 15 eingestellt wird. Die gewählte und auf die Radialrichtung bezogene Düsenorientierung wird über eine oder mehrere in eine nierenförmige Nut 16 eingreifende Schrauben 17 durch Klemmung aufrechterhalten; die Erfindung sieht vor, das Kühlschmiermittel M der Düse (Trichter 6) in einer Rohr- oder Schlauchleitung 18 seitlich derart zuzuführen, daß deren Mittellinie mit der Drehachse S des Zuführtrichters 6 zusammenfällt.The orientation of the feed funnel 6 can be changed by rotating about an axis S parallel to the grinding wheel axis, the smoothness of the nozzle swiveling movement about the axis of rotation S being set by means of two locknuts 15 which are countered to one another. The selected nozzle orientation, which is based on the radial direction, is maintained by clamping via one or more screws 17 engaging in a kidney-shaped groove 16; the invention provides to supply the cooling lubricant M to the nozzle (funnel 6) laterally in a pipe or hose line 18 such that its center line coincides with the axis of rotation S of the feed funnel 6.

Die Schutzhaube 2 ist zum Zwecke des Schleifscheibenwechsels mit einer frontseitig angeordneten Öffnungsklappe 19 versehen, deren Verschluß über einen Induktivgeber 20 überwacht wird, und welche über einen Verriegelungsmagneten 21 mit der Drehzahl des Werkzeugmotors signaltechnisch derart verknüpft ist, daß der Verriegelungsmagnet 21 das Öffnen der Schutzhaube 2 erst nach Schleifscheibenstillstand ermöglicht.For the purpose of changing the grinding wheel, the protective hood 2 is provided with an opening flap 19 arranged on the front, the closure of which is monitored by an inductive sensor 20, and which is linked by a locking magnet 21 to the speed of the tool motor in such a way that the locking magnet 21 opens the protective hood 2 only possible after grinding wheel standstill.

Claims (5)

Einrichtung zur Kühlschmiermittelzufuhr an einer Maschine zum Hochgeschwindigkeits-Umfangsschleifen von Außenkonturen mit einer durch eine Schutzhaube gekapselten Schleifscheibe und einer zu dieser hin sich öffnenden, dieselbe überdeckende, trichterförmigen Düse mit in Drehrichtung der Schleifscheibe einlaufseitig einstellbarer Düsenlippe, dadurch gekennzeichnet,

daß der Zufuhrtrichter (6) um eine zur Schleifscheibenachse parallele Achse verschwenkbar ist und an der auslaufenden Seite einen motorisch verstellbaren Schieber (9) zur Dosierung des Kühlschmiermittel-Volumenstromes (M) aufweist.Device for supplying cooling lubricant to a machine for high-speed circumferential grinding of outer contours with a grinding wheel encapsulated by a protective hood and a funnel-shaped nozzle that opens over it and covers it, with a funnel-shaped nozzle that can be adjusted in the direction of rotation of the grinding wheel, characterized in that

that the feed hopper (6) can be pivoted about an axis parallel to the grinding wheel axis and has a motor-adjustable slide (9) on the outlet side for metering the cooling lubricant volume flow (M). Einrichtung nach Anspruch 1, dadurch gekennzeichnet,
daß der Zufuhrtrichter (6) innerhalb der Schutzhaube (2) angeordnet ist.Device according to claim 1, characterized in
that the feed hopper (6) is arranged within the protective hood (2). Einrichtung nach Anspruch 2, dadurch gekennzeichnet,
daß der Zufuhrtrichter (6) unter etwa 45° gegen die Verbindungslinie der Mittelpunkte von Schleifscheibe (3) und Werkstück (13) in Scheibengegenlaufrichtung geneigt ist und hierzu etwa winkelsymmetrisch zur besagten Verbindungslinie eine Abflußöffnung (14) für das Kühlschmiermittel (M) in der Schutzhaube (2) vorgesehen ist.Device according to claim 2, characterized in
that the feed hopper (6) is inclined at about 45 ° against the connecting line of the center points of the grinding wheel (3) and workpiece (13) in the opposite direction of the wheel and for this purpose an outlet opening (14) for the cooling lubricant (M) in the protective hood approximately symmetrical to the said connecting line (2) is provided. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet,
daß zum Verstellen des Schiebers (9) auf der Auslaufseite des Zufuhrtrichters (6) ein Regelkreis vorgesehen ist, innerhalb dessen die Zuflußmenge des Kühlschmiermittels (M) vorwählbar ist und der Volumenstrom des Kühlschmiermittels gemessen wird.Device according to one of claims 1 to 3, characterized in that
that a control circuit is provided for adjusting the slide (9) on the outlet side of the feed funnel (6), within which the flow rate of the cooling lubricant (M) can be preselected and the volume flow of the cooling lubricant is measured. Einrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet,
daß das Kühlschmiermittel (M) dem Zufuhrtrichter (6) über eine seitliche Leitung (18) zugeführt wird, deren Mittellinie mit der Schwenkachse desselben (6) zusammenfällt.Device according to one of claims 1 to 4, characterized in that
that the cooling lubricant (M) is fed to the feed hopper (6) via a lateral line (18), the center line of which coincides with the pivot axis of the same (6).
EP91107910A 1990-06-01 1991-05-16 Device for feeding cooking and lubricating means on a high-speed external grinding machine Withdrawn EP0459235A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4017716A DE4017716A1 (en) 1990-06-01 1990-06-01 DEVICE FOR THE COOLANT LUBRICANT SUPPLY FOR HIGH-SPEED CIRCUIT GRINDING OF EXTERNAL CONTOURS
DE4017716 1990-06-01

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EP0459235A1 true EP0459235A1 (en) 1991-12-04

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EP (1) EP0459235A1 (en)
JP (1) JPH04226860A (en)
DE (1) DE4017716A1 (en)

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US5111625A (en) 1992-05-12
JPH04226860A (en) 1992-08-17
DE4017716A1 (en) 1991-12-05
DE4017716C2 (en) 1992-04-09

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