DE1477416A1 - Machine tools with hydrostatic bearings - Google Patents

Machine tools with hydrostatic bearings

Info

Publication number
DE1477416A1
DE1477416A1 DE19641477416 DE1477416A DE1477416A1 DE 1477416 A1 DE1477416 A1 DE 1477416A1 DE 19641477416 DE19641477416 DE 19641477416 DE 1477416 A DE1477416 A DE 1477416A DE 1477416 A1 DE1477416 A1 DE 1477416A1
Authority
DE
Germany
Prior art keywords
machine
oil
moved
machine tools
hydrostatic bearings
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.)
Pending
Application number
DE19641477416
Other languages
German (de)
Inventor
Helmut Thum
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.)
Rheinstahl Henschel AG
Original Assignee
Rheinstahl Henschel AG
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 Rheinstahl Henschel AG filed Critical Rheinstahl Henschel AG
Publication of DE1477416A1 publication Critical patent/DE1477416A1/en
Pending 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • F16C32/0651—Details of the bearing area per se
    • F16C32/0659—Details of the bearing area per se of pockets or grooves
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • F16C29/025—Hydrostatic or aerostatic
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators

Description

U77416U77416

HENSCHEL - WERKE Kassel, den 14. Dez. 1964HENSCHEL - WERKE Kassel, December 14, 1964

Aktiengesellschaft Dä/Schw. Aktiengesellschaft Dä / Schw.

FK 2146FK 2146

"Hydrostatisch gelagerte Führung von Werkzeugmaschinen" "Hydrostatically mounted guidance of machine tools"

Die Erfindung betrifft eine hydrostatisch gelagerte Führung vonThe invention relates to a hydrostatically supported guide of

Werkzeugmaschinen, nach Patent (Anmeldung A.Z.: H 45Machine tools, according to patent (registration A.Z .: H 45

741 Ib/49a), bei welcher der zu bewegende Maschinenteil, insbesondere Arbeitsschlitten, zwecks Aufhebung des Reibungswiderstandes von unter Druck stehendem öl in seiner Führung angehoben wird, mit geschlossenen Leitungen zur Ölrückführung, die sich dadurch auszeichnet, daß der Zufluß des Drucköles und der Abfluß des entspannten öles innerhalb eines an der Unterseite des zu bewegenden Maschinenteiles befindlichen, gegen die Atmosphäre abgedichteten Systems von Druckkammern, Entspannungsflächen und Abflußkanälen liegen.741 Ib / 49a), in which the machine part to be moved, in particular Working slide is raised in its guide for the purpose of eliminating the frictional resistance of pressurized oil closed lines for oil return, which is characterized by the fact that the inflow of the pressure oil and the outflow of the relaxed oil within one on the underside of the machine part to be moved located, sealed against the atmosphere system of pressure chambers, expansion areas and drainage channels lie.

Die Erfindung besteht darin, daß diese hydrostatische Lagerung an mehreren Führungsflächen verschiedener Ebenen eines Maschinenteiles vorgesehen ist, wobei die Druckölzuführung für jede dieser Anordnungen an den Flächen verschiedener Ebenen getrennt erfolgt.The invention consists in that this hydrostatic bearing on several guide surfaces of different levels of a machine part is provided, the pressure oil supply for each of these arrangements is carried out separately on the surfaces of different levels.

Durch die Erfindung wird bewirkt, daß nicht nur eine hydrostatische Lagerung von Längsführungen in der vorteilhaften Art und .Veise nach der Hauptanmeldung benutzt werden kann, sondern daß solche hydrostatische Lagerungen nunmehr auch eingesetzt werden können, um ein Festklemmen von Maschinenteilen - etwa eines Maschinentisches - zu bewirken. Mit Hilfe vorliegender Erfindung können nunmehr Maschinen mit hydrostatischen Lagerungen ausgeführt werden, bei denen durch entsprechende Jchaltung dann entweder hydrostatisch gelagert, oder aber auch geklemmt werden kann.The invention has the effect that not only a hydrostatic storage of longitudinal guides in the advantageous manner and .Veise according to the main application can be used, but that such hydrostatic bearings can now also be used to clamp machine parts - such as a machine table - to cause. With the aid of the present invention, machines can now be designed with hydrostatic bearings, in which, by appropriate connection, either hydrostatic bearings or can also be clamped.

Anhand der Zeichnung wird ein Ausführungsbeispiel der Erfindung kurz beschrieben. Dargestellt ist ein Jdaschinentisch mit dem zugehörigen Schaltschema für wahlveise hydrostatische Lagerung oder KlemmungAn exemplary embodiment of the invention is briefly illustrated with the aid of the drawing described. A machine table is shown with the associated one Switching scheme for either hydrostatic bearing or clamping

90984*4/007890984 * 4/0078

-2 --2 -

H77416H77416

desselben. Es ist aus dem Bild zu erkennen, daß bei einer Schaltung auf O z.B. Drucklosigkeit im System herrscht. Bei Schaltung auf 1 erfolgt durch den Zulauf des Drucköles, wie im Schema dargestellt, die hydrostatische Lagerung. Durch eine Schaltung auf 2 hingegen erhält man ein Festklemmen des Tisches. Dies erfolgt beispielsweise hier über die seitliche Kammer im zu bewegenden Tisch (Druck nach der SeiteJ sowie über die beiden Kammern im unteren eng schraffierten Führungsteil des zu bewegenden Maschinentisches. (Die hydrostatischen Lagerungen nach dem obengenannten Prinzip sind mit ihren Druckölzuführunv gen in der Zeichnung schematisch dargestellt.) Bei Schaltung auf "2" (hydrostatische Klemmung) wird das ül zuerst direkt in die Lecköl- J sammelkammern (Abflußkanäle) geleitet. Es tritt durch die Ringfläche in die inneren Kammern! Von dort kann es nicht abfließen, da das in der Zuleitung zur inneren Kammer liegende Rückschlagventil absperrt. Bei Verwendung der Einrichtung als Lagerung herrscht in den Abflußkanälen nur geringer Druck, hervorgerufen durch die Durchflußwiderstände in der Hücklaufleitung. Bei Verwendung zum Klemmen hingegen herrscht in der Leckölsammelkammer (Abflußkanäle) der volle Druck, wie er sich durch die Einstellung am Sicherheiteventil des Kreislaufes ergibt.same. It can be seen from the picture that when switching to O, for example, there is no pressure in the system. When switching to 1, the hydrostatic bearing takes place through the supply of pressure oil, as shown in the diagram. By switching to 2, on the other hand, the table is clamped. This is done here, for example, via the side chamber in the table to be moved (pressure to the side as well as via the two chambers in the lower, closely hatched guide part of the machine table to be moved. (The hydrostatic bearings according to the above principle are shown schematically in the drawing with their pressure oil supply ) When circuit to "2" (hydrostatic clamping) is. the guided ül first directly into the leak oil J collecting chambers (drainage channels) it passes through the annular surface in the inner chambers! From there, it can not drain. since in the supply line When the device is used as a bearing, there is only low pressure in the drainage channels, caused by the flow resistance in the return line Setting on the safety valve of the circuit results.

+(Druckkammern)+ (Pressure chambers)

909844/0078909844/0078

Claims (2)

U77416 PatentansprücheU77416 claims 1. Hydrostatisch gelagerte Führung von Werkzeugmaschinen nach·1. Hydrostatically mounted guidance of machine tools according to Patent (Anmeldung Az.: H 45 7*1 Ib/49a), die sichPatent (Application Ref .: H 45 7 * 1 Ib / 49a), which dadurch auszeichnet, daß der Zufluß des Drucköles und der Abfluß des entspannten Öles innerhalb eines an der Unterseite des zu bewegenden Maschinenteiles befindlichen, gegen die Atmosphäre abgedichteten Systems von Druckkammern, Entspannungsflächen und Abflußkanälen liegen, gekennzeichnet durch ihre Anordnung an mehreren Führungsflächen verschiedener Ebenen eines Maschinenteiles, wobei die Druckölzuführung für jede dieser Anordnungen an den Flächen verschiedener Ebenen getrennt erfolgt.characterized in that the inflow of the pressure oil and the outflow of the relaxed oil are located within a system of pressure chambers, relaxation surfaces and drainage channels located on the underside of the machine part to be moved and sealed against the atmosphere, characterized by their arrangement on several guide surfaces on different levels of a machine part, the pressurized oil supply being carried out separately for each of these arrangements on the surfaces of different planes. 2. Hydrostatisch gelagerte Führung nach Anspruch 1, gekennzeichnet durch eine ölzuführung derart, daß das Drucköl zuerst direkt in die Abflußkanäle an der Unterseite des zu bewegenden Masch,- teilee geleitet wird. 2. Hydrostatically mounted guide according to claim 1, characterized by an oil supply such that the pressurized oil is first passed directly into the drainage channels on the underside of the machine to be moved - parts . 909844/0078909844/0078 r s e r tr s e r t LeerseiteBlank page
DE19641477416 1964-12-19 1964-12-19 Machine tools with hydrostatic bearings Pending DE1477416A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0054648 1964-12-19

Publications (1)

Publication Number Publication Date
DE1477416A1 true DE1477416A1 (en) 1969-10-30

Family

ID=7158763

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19641477416 Pending DE1477416A1 (en) 1964-12-19 1964-12-19 Machine tools with hydrostatic bearings

Country Status (2)

Country Link
DE (1) DE1477416A1 (en)
GB (1) GB1073442A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697933A (en) * 1986-03-31 1987-10-06 Nippon Thompson Co., Ltd. Fluid bearing assembly
EP0652075A2 (en) * 1993-09-14 1995-05-10 Eduard Huber Management Ag Device for the machining of workpieces
CN101596679B (en) * 2009-07-08 2011-05-25 路文忠 Hydrostatic guideway of liquid discontinuous flow precise circular turntable
CN103659288A (en) * 2013-11-06 2014-03-26 西安理工大学 Hydrostatic guide track

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD240717A1 (en) * 1985-09-06 1986-11-12 Bauakademie Ddr HYDROSTATIC TRANSLATION SLIDING BEARING
IT1296308B1 (en) * 1997-09-24 1999-06-25 Quintilio Lupi HYDROSTATIC BEARING SUPPORT DEVICE FOR MACHINES FOR THE PROCESSING OF MARBLE, STONE AND SIMILAR SLABS.
JP6559937B2 (en) * 2014-10-28 2019-08-14 東芝機械株式会社 Hydrostatic guide mechanism and machine tool
US9845828B2 (en) * 2014-10-28 2017-12-19 Toshiba Kikai Kabushiki Kaisha Guide mechanism of machine tool and machine tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697933A (en) * 1986-03-31 1987-10-06 Nippon Thompson Co., Ltd. Fluid bearing assembly
EP0652075A2 (en) * 1993-09-14 1995-05-10 Eduard Huber Management Ag Device for the machining of workpieces
EP0652075A3 (en) * 1993-09-14 1996-07-03 Huber Eduard Management Ag Device for the machining of workpieces.
CN101596679B (en) * 2009-07-08 2011-05-25 路文忠 Hydrostatic guideway of liquid discontinuous flow precise circular turntable
CN103659288A (en) * 2013-11-06 2014-03-26 西安理工大学 Hydrostatic guide track

Also Published As

Publication number Publication date
GB1073442A (en) 1967-06-28

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Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971