DE3937216A1 - System for cutting fluid application in machining - has high pressure pump fed from charging pump to avoid entrapment of air - Google Patents

System for cutting fluid application in machining - has high pressure pump fed from charging pump to avoid entrapment of air

Info

Publication number
DE3937216A1
DE3937216A1 DE3937216A DE3937216A DE3937216A1 DE 3937216 A1 DE3937216 A1 DE 3937216A1 DE 3937216 A DE3937216 A DE 3937216A DE 3937216 A DE3937216 A DE 3937216A DE 3937216 A1 DE3937216 A1 DE 3937216A1
Authority
DE
Germany
Prior art keywords
high pressure
pump
pressure pump
cutting fluid
filter
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.)
Withdrawn
Application number
DE3937216A
Other languages
German (de)
Inventor
Horst Wolff
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.)
SPECK KOLBENPUMPENFABRIK OTTO
Original Assignee
SPECK KOLBENPUMPENFABRIK OTTO
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SPECK KOLBENPUMPENFABRIK OTTO filed Critical SPECK KOLBENPUMPENFABRIK OTTO
Priority to DE3937216A priority Critical patent/DE3937216A1/en
Publication of DE3937216A1 publication Critical patent/DE3937216A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1038—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1084—Arrangements for cooling or lubricating tools or work specially adapted for being fitted to different kinds of machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

Cutting fluid is pumped by an immersion type charging pump (3) via a three-way valve either to a low pressure outlet or to high pressure pump (9) for delivery to a deep hole drilling tool during cutting. This ensures that high pressure fluid can be reliably delivered to the tool without the risk of admitting air to the system. Before entering the high pressure pump, the cutting fluid passes through a cooler (5) and filter (7). During the non-cutting part of the cycle, cutting fluid can be directed through the low pressure circuit for general cooling and chip removal. ADVANTAGE - Simple method of ensuring delivery of high-pressure cutting fluid free of entrapped air.

Description

Die Erfindung befaßt sich mit einer Vorrichtung zur Verbes­ serung der Kühl- und Schmiermöglichkeiten bei Bearbeitungs­ vorgängen an Werkzeugmaschinen.The invention relates to a device for verbs improvement of cooling and lubrication options during machining operations on machine tools.

Es ist bekannt, das bei spanabhebenden Bearbeitungsvorgängen erforderliche Kühlmittel, insbesondere Wasser, den Werkzeu­ gen über eine Pumpe zuzuführen.It is known that in machining operations required coolant, especially water, the tool supply via a pump.

Insbesondere bei speziellen Bearbeitungsvorgängen, wie z. B. beim Tieflochbohren muß das Kühlmittel mit erhöhtem bzw. ho­ hem Druck zugeführt werden, um in ausreichender Menge in den eigentlichen Bearbeitungsbereich zu gelangen.Especially with special machining operations, such as. B. when drilling deep holes, the coolant must be increased or high hem pressure to be supplied in sufficient quantities in the actual processing area.

Bei dieser Kühlmittelzuführung unter Verwendung einer Hoch­ druckpumpe besteht die Gefahr, daß von der Pumpe kurzzeitig Luft angesaugt wird oder Schmutzpartikel gefördert werden, und dies kann dazu führen und führt häufig dazu, daß der je­ weilige Bearbeitungsvorgang, z. B. der Vorgang des Tiefloch­ bohrens so gestört wird, daß Ausschußteile entstehen.With this coolant supply using a high pressure pump there is a risk that from the pump briefly Air is sucked in or dirt particles are conveyed, and this can and often leads to the fact that the because processing, z. B. the process of the deep hole drilling is disturbed so that rejects arise.

Aufgabe der Erfindung ist es, mit möglichst einfachen Mit­ teln diese in der Praxis ganz erhebliche Problematik mit Sicherheit zu beseitigen. The object of the invention is to be as simple as possible these problems, which are very considerable in practice Eliminate security.  

Dazu wird gemäß der Erfindung vorgesehen, daß die Hochdruck­ pumpe über eine vorgeschaltete weitere Pumpe, insbesondere eine Tauchpumpe geladen, d. h. mit der auf höheren Druck zu bringenden Flüssigkeit gespeist wird, wobei vorzugsweise zwischen beiden Pumpen ein Filter angebracht wird.For this purpose, it is provided according to the invention that the high pressure pump via an upstream additional pump, in particular a submersible pump is loaded, d. H. with the towards higher pressure bringing liquid is fed, preferably a filter is placed between the two pumps.

Auf diese Weise gelingt es überraschend, eine völlig luftbla­ senfreie Zuführung von unter erhöhtem Druck bzw. hohem Druck stehenden Kühl- und/oder Schmiermittel zu der jeweiligen Be­ arbeitungsstelle zu gewährleisten und auch jegliche Fremd­ körper auszuschalten, wenn eine Vorschaltung eines Filters erfolgt, was wiederum bei einer Hochdruckpumpe nur dann mög­ lich ist, wenn erfindungsgemäß die Anordnung dieses Filters zwischen der Hochdruckpumpe und einer als Ladepumpe wirken­ den weiteren Pumpe erfolgt.In this way it is surprisingly possible to create a completely air-blue Sen-free supply of under increased pressure or high pressure standing coolant and / or lubricant for the respective loading to ensure employment and any foreign body off when an upstream filter takes place, which in turn is only possible with a high pressure pump Lich, if the arrangement of this filter according to the invention act between the high pressure pump and a charge pump the further pump.

Die Drehzahl der Hochdruckpumpe kann in Abhängigkeit vom je­ weiligen Bearbeitungsvorgang bzw. vom jeweils eingesetzten Werkzeug erfolgen, so daß eine optimale Mengenregelung ge­ währleistet ist.The speed of the high pressure pump can depend on the because of the processing operation or the particular one used Tool done so that an optimal quantity control ge is guaranteed.

Das der Hochdruckpumpe vorgeschaltete Filter wird vorzugswei­ se zwischen zwei Manometern angeordnet, um über eine Diffe­ renzdrucküberwachung die Filterverschmutzung zu erfassen.The filter upstream of the high pressure pump is preferred arranged between two pressure gauges to over a diffe limit pressure monitoring to detect the filter contamination.

Ferner ist zwischen der Ladepumpe und dem Filter vorzugswei­ se ein Kühler angeordnet.It is also preferred between the charge pump and the filter a cooler is arranged.

Besonders vorteilhaft ist es, wenn zwischen der Förderpumpe, die im Regelfall aus einer Tauchpumpe besteht und der Hoch­ druckpumpe bzw. dem dieser Hochdruckpumpe vorgeschalteten Kühler ein 3-Wege-Ventil angeordnet wird, da es dann auf einfache Weise möglich ist, das von der Pumpe aus dem Kühl- und/oder Schmiermittelbehälter geförderte Medium entweder der Hochdruckpumpe zuzuführen, wenn dies aufgrund des jewei­ ligen Bearbeitungsvorganges erforderlich ist, oder das geför­ derte Medium unter Niederdruck zum Kühlen, Schmieren oder zum Entfernen von Spänen zu verwenden, wie dies an sich be­ kannt ist.It is particularly advantageous if, between the feed pump, which usually consists of a submersible pump and the high pressure pump or upstream of this high pressure pump A 3-way valve is placed in the cooler since it is then on  is possible in a simple way that the pump from the cooling and / or lubricant reservoir fluid either the high pressure pump if this is due to the respective current machining process is required, or that medium under low pressure for cooling, lubrication or to use to remove chips as this per se is known.

Ein Ausführungsbeispiel der Erfindung ist in der beigefügten Zeichnung dargestellt.An embodiment of the invention is in the accompanying Drawing shown.

Diese Zeichnung zeigt einen Kühlmittelbehälter 1 mit einem Schwimmer 2 für die Niveauregelung und den Trockenschutz. Eine Tauchpumpe 3 fördert das Medium aus dem Behälter 1 zu einem 3-Wege-Magnetventil 4.This drawing shows a coolant tank 1 with a float 2 for level control and dry protection. A submersible pump 3 conveys the medium from the container 1 to a 3-way solenoid valve 4 .

Ein Ausgang dieses 3-Wege-Magnetventils 4 ermöglicht es, das von der Tauchpumpe 3 geförderte Medium direkt zum Kühlen, Schmieren oder zum Entfernen von Spänen unter Niederdruck zu verwenden.An outlet of this 3-way solenoid valve 4 enables the medium conveyed by the submersible pump 3 to be used directly for cooling, lubricating or for removing chips under low pressure.

Der andere Ausgang des 3-Wege-Magnetventils 4 führt über ei­ nen Kühler 5, ein erstes Manometer 6, ein Filter 7 und ein zweites Manometer 8 zu einer Hochdruckpumpe 9, die über ei­ nen Motor 10 angetrieben ist.The other output of the 3-way solenoid valve 4 leads via a cooler 5 , a first pressure gauge 6 , a filter 7 and a second pressure gauge 8 to a high pressure pump 9 which is driven by a motor 10 .

Mittels der Manometer 6, 8 kann eine Differenzdrucküberwa­ chung des Filters 7 erfolgen, um festzustellen, wann ein Fil­ terverschmutzungsgrad erreicht ist, der eine Auswechselung oder ein Säubern des Filters erfordert oder ein Umschalten auf ein parallel angeordnetes neues Filter notwendig macht.By means of the pressure gauges 6 , 8 , a differential pressure monitoring of the filter 7 can be carried out in order to determine when a degree of filter contamination has been reached, which requires replacement or cleaning of the filter, or necessitating a switch to a new filter arranged in parallel.

Der Kühler 5 dient dazu, das Medium auf der gewünschten Tem­ peratur zu halten. The cooler 5 serves to keep the medium at the desired temperature.

Dadurch, daß die Hochdruckpumpe 9 nicht direkt aus dem Kühl­ mittelbehälter 1 ansaugen muß, sondern das Medium unter ei­ nem Ladedruck über die Tauchpumpe 3 erhält, wird sicherge­ stellt, daß eine absolut luftfreie Zuführung des Mediums zur Hochdruckpumpe gewährleistet ist und somit auch ein luftbla­ senfreier Kühlmittelstrom zur Verfügung steht, um die erfor­ derlichen Kühl- und/oder Schmiereffekte bei kritischen Bear­ beitungsvorgängen, insbesondere beim Tieflochbohren absolut problemfrei durchführen zu können.The fact that the high pressure pump 9 does not have to suck directly from the coolant container 1 , but receives the medium under egg nem boost pressure via the submersible pump 3 , will ensure that an absolutely air-free supply of the medium to the high pressure pump is guaranteed and thus an air blast senfreier Coolant flow is available in order to be able to carry out the necessary cooling and / or lubrication effects during critical machining operations, in particular when drilling deep holes, absolutely problem-free.

Wichtig ist ferner, daß durch das Arbeiten mit Ladedruck der Hochdruckpumpe ein Filter 7 vorgeschaltet werden kann, was praktisch nicht möglich ist, wenn die Hochdruckpumpe direkt ansaugen muß.It is also important that a filter 7 can be connected upstream by working with the boost pressure of the high-pressure pump, which is practically not possible if the high-pressure pump has to prime directly.

Auf der Ausgangsseite der Hochdruckpumpe 9 ist ein Sicher­ heitsventil 11 angeordnet.On the output side of the high pressure pump 9 , a safety valve 11 is arranged.

Über eine Einheit 12 kann eine Drehzahlregelung des Motors, insbesondere in Abhängigkeit von den jeweiligen Bearbeitungs­ vorgängen erfolgen, so daß eine gezielte Mengenregelung des Kühl- und/oder Schmiermittels möglich ist.A speed control of the engine can take place via a unit 12 , particularly as a function of the respective machining operations, so that a targeted control of the quantity of the coolant and / or lubricant is possible.

Claims (6)

1. Vorrichtung zum Spülen und/oder Schmieren bei spanabtragenden Bearbeitungsvorgängen, insbesondere bei Werk­ zeugmaschinen und Bearbeitungszentren unter Verwendung einer Hochdruckpumpe, dadurch gekennzeichnet, daß der Hochdruckpumpe eine Ladepumpe vorgeschaltet ist.1. A device for rinsing and / or lubricating in machining operations, especially in machine tools and machining centers using a high pressure pump, characterized in that the high pressure pump is connected upstream of a charge pump. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen Ladepumpe und Hochdruckpumpe ein Filter angeord­ net ist. 2. Device according to claim 1, characterized, that a filter is arranged between the charge pump and the high pressure pump is not.   3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine Einrichtung zur Überwachung des Verschmutzungsgra­ des des Filters vorgesehen ist, die insbesondere aus beider­ seits des Filters im Strömungsweg angeordneten Manometern besteht.3. Device according to claim 1 or 2, characterized, that a device for monitoring the pollution level of the filter is provided, in particular from both on the side of the filter in the flow path manometers consists. 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen Ladepumpe und Hochdruckpumpe ein Kühler vorgese­ hen ist.4. Device according to one of the preceding Expectations, characterized, that a cooler is provided between the charge pump and the high pressure pump hen is. 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen Kühler und Ladepumpe ein 3-Wege-Magnetventil angeordnet ist, das die Zuführung des von der Ladepumpe, insbesondere Tauchpumpe geförderten Mediums entweder zur Hochdruckpumpe ermöglicht oder einen Direktweg zum Kühlen, Schmieren oder zum Entfernen von Spänen unter Niederdruck zuläßt.5. Device according to one of the preceding Expectations, characterized, that a 3-way solenoid valve between cooler and charge pump is arranged, which is the supply of the from the charge pump, especially submersible pumped medium either for Enables high pressure pump or a direct path for cooling, Lubricate or remove chips under low pressure allows. 6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Hochdruckpumpe eine Drehzahlregelung zugeordnet ist, die insbesondere in Abhängigkeit vom jeweiligen Bearbeitungs­ vorgang steuerbar ist.6. Device according to one of the preceding Expectations, characterized, that the high-pressure pump is assigned a speed control, which in particular depending on the respective processing operation is controllable.
DE3937216A 1989-11-08 1989-11-08 System for cutting fluid application in machining - has high pressure pump fed from charging pump to avoid entrapment of air Withdrawn DE3937216A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3937216A DE3937216A1 (en) 1989-11-08 1989-11-08 System for cutting fluid application in machining - has high pressure pump fed from charging pump to avoid entrapment of air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3937216A DE3937216A1 (en) 1989-11-08 1989-11-08 System for cutting fluid application in machining - has high pressure pump fed from charging pump to avoid entrapment of air

Publications (1)

Publication Number Publication Date
DE3937216A1 true DE3937216A1 (en) 1991-05-16

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DE3937216A Withdrawn DE3937216A1 (en) 1989-11-08 1989-11-08 System for cutting fluid application in machining - has high pressure pump fed from charging pump to avoid entrapment of air

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0712687A1 (en) * 1994-11-17 1996-05-22 Western Atlas Inc. Machine tool coolant delivery method and apparatus
DE19715653A1 (en) * 1997-04-15 1998-10-22 Focke & Co Process for operating machines with rotating units and machine with rotating unit, in particular packaging machine with (folding) turret
US7771145B2 (en) * 2007-03-01 2010-08-10 Toshiba Kikai Kabushiki Kaisha Method and apparatus for machining deep hole
DE102010054401A1 (en) * 2010-12-14 2012-06-14 Grob-Werke Gmbh & Co. Kg Processing machine for processing work-piece, has tool holder for selectively receiving of multiple different tools, where tool holder has cooling or lubricant line
CN102528552A (en) * 2012-01-12 2012-07-04 上海三一精机有限公司 Chip removing and cooling device for scraping roller machine and scraping roller machine
EP3100822A3 (en) * 2015-06-01 2016-12-28 Heckert GmbH Device for cooling lubricant supply for at least one machine tool and machine tool
CN106312682A (en) * 2016-09-21 2017-01-11 哈尔滨理工大学 Adjustable high-pressure cooling device for high-temperature alloy turning
CN113547150A (en) * 2021-09-23 2021-10-26 徐州精一泵业有限公司 Magnetic cooling type vibration-free water pump body and end cover dynamic clamping drilling equipment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0712687A1 (en) * 1994-11-17 1996-05-22 Western Atlas Inc. Machine tool coolant delivery method and apparatus
US5595462A (en) * 1994-11-17 1997-01-21 Western Atlas, Inc. Machine tool coolant delivery method and apparatus
DE19715653A1 (en) * 1997-04-15 1998-10-22 Focke & Co Process for operating machines with rotating units and machine with rotating unit, in particular packaging machine with (folding) turret
US6044616A (en) * 1997-04-15 2000-04-04 Focke & Co. (Gmbh & Co.) Method of operating machines with rotating units and machine with a rotating unit, in particular a packaging machine with a (folding) turret
US7771145B2 (en) * 2007-03-01 2010-08-10 Toshiba Kikai Kabushiki Kaisha Method and apparatus for machining deep hole
DE102010054401A1 (en) * 2010-12-14 2012-06-14 Grob-Werke Gmbh & Co. Kg Processing machine for processing work-piece, has tool holder for selectively receiving of multiple different tools, where tool holder has cooling or lubricant line
DE102010054401B4 (en) * 2010-12-14 2017-02-02 Grob-Werke Gmbh & Co. Kg processing machine
CN102528552A (en) * 2012-01-12 2012-07-04 上海三一精机有限公司 Chip removing and cooling device for scraping roller machine and scraping roller machine
EP3100822A3 (en) * 2015-06-01 2016-12-28 Heckert GmbH Device for cooling lubricant supply for at least one machine tool and machine tool
CN106312682A (en) * 2016-09-21 2017-01-11 哈尔滨理工大学 Adjustable high-pressure cooling device for high-temperature alloy turning
CN113547150A (en) * 2021-09-23 2021-10-26 徐州精一泵业有限公司 Magnetic cooling type vibration-free water pump body and end cover dynamic clamping drilling equipment

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