DE3911048A1 - Drive for machine tools - Google Patents

Drive for machine tools

Info

Publication number
DE3911048A1
DE3911048A1 DE19893911048 DE3911048A DE3911048A1 DE 3911048 A1 DE3911048 A1 DE 3911048A1 DE 19893911048 DE19893911048 DE 19893911048 DE 3911048 A DE3911048 A DE 3911048A DE 3911048 A1 DE3911048 A1 DE 3911048A1
Authority
DE
Germany
Prior art keywords
flywheel
clutch
brake
drive
oil
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Withdrawn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
DE19893911048
Other languages
German (de)
Inventor
Ernst Dipl Ing Zimmermann
Axel Desch
Herbert Dipl Ing Curdes
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.)
DESCH KG HEINRICH
Original Assignee
DESCH KG HEINRICH
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 DESCH KG HEINRICH filed Critical DESCH KG HEINRICH
Priority to DE19893911048 priority Critical patent/DE3911048A1/en
Publication of DE3911048A1 publication Critical patent/DE3911048A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q11/00Accessories 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
    • B23Q11/0078Safety devices protecting the operator, e.g. against accident or noise
    • B23Q11/0092Safety devices protecting the operator, e.g. against accident or noise actuating braking or stopping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q37/00Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02Driving main working members
    • B23Q5/04Driving main working members rotary shafts, e.g. working-spindles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B1/00Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
    • B30B1/188Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means driven by a continuously rotatable flywheel with a coupling arranged between the flywheel and the screw

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Braking Arrangements (AREA)

Abstract

In the drive, the torque of a driven flywheel (20) is transmitted via a multi-disc clutch (30) combined with a multi-disc brake to the pinion shaft (15) of an epicyclic gear unit (10). Here, the flywheel is rotatably mounted on a bearing flange (16) on a fixed cap (14) of the epicyclic gear unit. This arrangement results in a compact, space-saving type of construction. The drive shaft remains free of transverse forces. The oil accumulating in the clutch/brake can pass via axially parallel connecting passages (23) in the hub of the flywheel to an oil-collecting space (17). <IMAGE>

Description

Der Erfindung liegt folgende Aufgabe zugrunde: Die für den Antrieb von Werkzeugmaschinen, wie Pressen, Stanzautomaten, Scheren und dergleichen erforderlichen einzelnen Baueinheiten, nämlich Schwungrad, Getriebe und Kupplungs-Brems-Kombination sollen zu einem Antrieb zusammengefaßt werden, der sowohl im Bezug auf die Fertigung als auf die Montage eine Einheit bildet und die Voraussetzungen für einen funktionssicheren wirtschaftlichen Betrieb mit sich bringt.The invention is based on the following task: The for the drive of machine tools, such as presses, Die cutters, scissors and the like are required individual units, namely flywheel, transmission and clutch-brake combination are intended to drive be summarized, both in relation to the Manufacturing as a unit on assembly and the prerequisites for a reliable economic operation.

Diese Aufgabe wird durch einen Antrieb mit den Merkmalen des Hauptanspruchs gelöst. Der Unteranspruch hat eine bevorzugte Ausführungsform zum Inhalt.This task is carried out by a drive with the characteristics of the main claim solved. The subclaim has one preferred embodiment to the content.

Bei einem solchen Antrieb wird vorzugsweise ein Planeten­ getriebe eingesetzt, das an sich schon den Vorteil einer relativ gedrungenen Bauweise hat. Das Schwungrad ist unmittelbar antriebseitig an einem festgehaltenen Deckel des Planetengetriebes gelagert. Das Gehäuse für die antriebseitig angeschlossene Kupplungs-Brems-Kombination ist wiederum unmittelbar an das Schwungrad angeschlossen, und zum Teil in dem Bereich desselben eingebaut. Der gesamte Antrieb erhält dadurch eine kompakte gedrungene Form. Die Antriebswelle bleibt frei von Querkräften, weil das Schwungrad an einem Lagerflansch des Getriebedeckels gelagert ist. Ein weiterer Vorteil besteht in dem sehr geringen Massenträgheitsmoment des Getriebes, wodurch sich kurze Bremszeiten bzw. Bremswinkel sowie eine geringe Verlustleistung bei intermittierendem Betrieb ergeben. Die Kupplungs-Brems-Einheit wird von einem Gehäuse umgeben, das im Bedarfsfall auch als öldichtes Gehäuse ausgebaut werden kann, bei einem naßlaufenden System. Dieses Gehäuse kann vom Schwungrad abgenommen werden, so daß die Verschleißteile der Kupplungs-Brems-Kombination zum Auswechseln frei werden.Such a drive is preferably a planet gearbox used, which in itself has the advantage of a relatively compact construction. The flywheel is directly on the drive side on a fixed cover of the planetary gear. The housing for the clutch-brake combination connected on the drive side  is in turn connected directly to the flywheel, and partly installed in the same area. The This gives the entire drive a compact, compact design Shape. The drive shaft remains free of lateral forces because the flywheel on a bearing flange of the gearbox cover is stored. Another advantage is that low moment of inertia of the transmission, whereby short braking times or braking angles as well as a short one Power loss in intermittent operation result. The clutch-brake unit is surrounded by a housing, which, if necessary, can also be expanded as an oil-tight housing in a wet-running system. This housing can be removed from the flywheel so that the Wear parts of the clutch-brake combination for Change become free.

Bei einer bevorzugten Ausführungsform der Erfindung sind in der Nabe des Schwungrades achsparallele Kanäle vorgesehen, die das im Gehäuse der Kupplungs-Brems- Kombination befindliche Kühlöl in den Bereich zwischen Schwungrad und Planetengetriebe leiten, wo es durch einen Ölfangring aufgenommen und in den Kreislauf zurückgeführt wird. Das im Gehäuse der Kupplungs-Brems-Kombination anfallende Öl kann im übrigen auch die Lagerelemente des Schwungrades schmieren bzw. kühlen. Die achsparallelen Verbindungskanäle in der Nabe des Schwungrades sind so angeordnet, daß Verschleißpartikel, wie sie durch Reibung der Lamellen entstehen und sich durch die Fliehkraft an der Innenwand des Gehäuses ansammeln, aufgenommen und abgeführt werden. In a preferred embodiment of the invention axially parallel channels in the flywheel hub provided that the in the housing of the clutch-brake Combination cooling oil in the area between Flywheel and planetary gears guide where there is one Oil trap ring picked up and returned to the circuit becomes. That in the housing of the clutch-brake combination Incident oil can also the bearing elements of the Lubricate or cool the flywheel. The axially parallel Connection channels in the hub of the flywheel are like this arranged that wear particles, such as those caused by friction of the lamellae arise and become due to the centrifugal force accumulate, picked up and the inside wall of the housing be dissipated.  

Im folgenden wird ein Ausführungsbeispiel der Erfindung beschrieben unter Bezugnahme auf die Zeichnung, die im Prinzip einen axialen Schnitt durch den gesamten Antrieb zeigt.The following is an embodiment of the invention described with reference to the drawing which in Principle of an axial cut through the entire drive shows.

Der Antrieb umfaßt abtriebseitig ein Planetengetriebe 10, antriebseitig ein Schwungrad 20, dessen Drehmoment über eine Kupplungs-Brems-Kombination (Lamellenkupplung und Lamellenbremse) auf eine Ritzelwelle 15 des Planetengetriebes übertragen wird. Das Planetengetriebe ist in einem Gehäuse 11 untergebracht, das antriebseitig durch einen Deckel 14 verschlossen ist, der ortsfest mit einem Maschinengestell 12 verbunden ist. Der Abtrieb am Planetengetriebe erfolgt über eine Hohlwelle 13 oder ein anderes Verbindungselement.The drive comprises a planetary gear 10 on the output side and a flywheel 20 on the drive side, the torque of which is transmitted to a pinion shaft 15 of the planetary gear via a clutch-brake combination (multi-plate clutch and multi-plate brake). The planetary gear is housed in a housing 11 which is closed on the drive side by a cover 14 which is connected in a stationary manner to a machine frame 12 . The output on the planetary gear takes place via a hollow shaft 13 or another connecting element.

Der fest mit dem Maschinengestell verbundene Deckel 14 des Planetengetriebes ist fest mit einem Lagerflansch 16 verbunden, auf dem mittels der Lagerelemente 21 das Schwungrad 20 drehbar gelagert ist. Am Ende des Lagerflansches 16 ist fest ein Lamellenträger 38 angebracht, an dem die äußeren Lamellen der Lamellenbremse befestigt sind.The cover 14 of the planetary gear, which is firmly connected to the machine frame, is firmly connected to a bearing flange 16 on which the flywheel 20 is rotatably mounted by means of the bearing elements 21 . At the end of the bearing flange 16 , a disk carrier 38 is fixedly attached to which the outer disks of the disk brake are attached.

An eine Nabe 25 des Schwungrades 20 ist ein Gehäuse 31 für die gesamte Kupplungs-Brems-Kombination angebracht und zwar mittels der Schraubverbindungen 24. Die Schraubverbindungen lassen es zu, das Gehäuse 31 für die Kupplungs-Brems-Kombination abzunehmen, um Verschleißteile der Kupplungs-Brems-Kombination wechseln zu können. Mit dem Gehäuse fest, jedoch lösbar verbunden, ist ein Träger 33, an dem die äußeren Lamellen der Lamellenkupplung befestigt sind.A housing 31 for the entire clutch-brake combination is attached to a hub 25 of the flywheel 20 by means of the screw connections 24 . The screw connections allow the housing 31 for the clutch / brake combination to be removed in order to be able to change wear parts of the clutch / brake combination. Fixed to the housing, but releasably connected, is a carrier 33 to which the outer plates of the multi-plate clutch are attached.

Fest mit der Ritzelwelle 15 des Planetengetriebes verbunden sind die miteinander verschraubten Naben 37, an der die inneren Lamellen der Bremse gehalten sind, und 34, an der die inneren Lamellen der Kupplung gehalten sind. Zwischen den Naben ist axial beweglich ein Kolben 35 gehalten, durch den schaltbar entweder die Lamellen der Kupplung unter Druck gesetzt werden können, wenn eingekuppelt wird, bzw. die Lamellen der Bremse, wenn ausgekuppelt wird. Durch Drucköl über die Kanäle 41 erhält der Kolben 35 seinen Druck zur Betätigung der Kupplung. Unterbleibt der Öldruck, so wird der Kolben automatisch durch Federn 36 gegen die Bremslamellen gedrückt. Das Drucköl wird über einen Rotoranschluß 40 in die Ritzelwelle 15 eingeführt.Fixed to the pinion shaft 15 of the planetary gear are the screwed hubs 37 , on which the inner plates of the brake are held, and 34, on which the inner plates of the clutch are held. A piston 35 is held axially movable between the hubs, by means of which either the plates of the clutch can be pressurized when the clutch is engaged, or the plates of the brake when the clutch is disengaged. By means of pressure oil via the channels 41 , the piston 35 receives its pressure for actuating the clutch. If there is no oil pressure, the piston is automatically pressed against the brake plates by springs 36 . The pressure oil is introduced into the pinion shaft 15 via a rotor connection 40 .

Außerdem wird Kühlöl über den Rotor 40 eingeführt und zwar im Bereich der Ritzelwelle über achsparallele Kanäle 42, von denen die radialen Kanäle 43 abzweigen. Das Kühlöl gelangt zu den Lamellen in den Raum des Gehäuses 31. Von dort kann das Kühlöl zu den Lagerelementen 21 gelangen. Außerdem hat das Kühlöl die Möglichkeit über achsparallele Verbindungskanäle 23 in der Nabe des Schwungrades in den Bereich zwischen Schwungrad und Planetengetriebe zu gelangen, wo es von einem feststehenden Ölfangring 17 aufgenommen und in den Ölkreislauf zurückgeführt wird. Der Ölfangring kann in mehrere Kammern aufgeteilt sein. Für die Abdichtung des öles ist am Schwungrad ein Labyrinth 22 vorgesehen, vorzugsweise mit axial fördernden Nuten.In addition, cooling oil is introduced via the rotor 40 , specifically in the region of the pinion shaft via axially parallel channels 42 , from which the radial channels 43 branch off. The cooling oil reaches the fins in the space of the housing 31 . From there, the cooling oil can reach the bearing elements 21 . In addition, the cooling oil has the possibility to reach the area between the flywheel and the planetary gear via axially parallel connecting channels 23 in the hub of the flywheel, where it is received by a fixed oil catch ring 17 and returned to the oil circuit. The oil trap ring can be divided into several chambers. A labyrinth 22 is provided on the flywheel for sealing the oil, preferably with axially conveying grooves.

Claims (2)

1. Antrieb für Werkzeugmaschinen, gekennzeichnet durch die nachfolgend genannten Merkmale:
  • - das Drehmoment eines angetriebenen Schwungrades (20) wird über eine Kupplung (30) kombiniert mit einer Bremse auf eine Ritzelwelle (15) eines Planetengetriebes (10) übertragen;
  • - an einem festgehaltenen Deckel (14) eines Planetengetriebes ist ein Lagerflansch (16) fest angebracht, auf dem das Schwungrad (20) drehbar gelagert ist, und an dessen Ende ein Träger (38) zur Aufnahme der äußeren Lamellen der Bremse fest angebracht ist;
  • - die Nabe (25) des Schwungrades ist lösbar mit einem die Kupplungs-Brems-Kombination (30) aufnehmenden Gehäuse (31) verbunden.
1. Drive for machine tools, characterized by the following features:
  • - The torque of a driven flywheel ( 20 ) is transmitted via a clutch ( 30 ) combined with a brake to a pinion shaft ( 15 ) of a planetary gear ( 10 );
  • - On a fixed cover ( 14 ) of a planetary gear, a bearing flange ( 16 ) is fixedly mounted, on which the flywheel ( 20 ) is rotatably mounted, and at the end of which a carrier ( 38 ) for receiving the outer plates of the brake is fixedly attached;
  • - The hub ( 25 ) of the flywheel is detachably connected to a housing ( 31 ) accommodating the clutch-brake combination ( 30 ).
2. Antrieb nach Anspruch 1, dadurch gekennzeichnet, daß in der Nabe (25) des Schwungrades im Anschluß an die Innenwand des Gehäuses (31) achsparallele Kanäle (23) gebildet sind, und daß zur Aufnahme von Öl aus diesen Kanälen am Deckel (14) des Planetengetriebes ein Ölfangring (17) angebracht ist.2. Drive according to claim 1, characterized in that in the hub ( 25 ) of the flywheel in connection to the inner wall of the housing ( 31 ) axially parallel channels ( 23 ) are formed, and that for receiving oil from these channels on the cover ( 14th ) of the planetary gear an oil trap ring ( 17 ) is attached.
DE19893911048 1989-04-05 1989-04-05 Drive for machine tools Withdrawn DE3911048A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893911048 DE3911048A1 (en) 1989-04-05 1989-04-05 Drive for machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893911048 DE3911048A1 (en) 1989-04-05 1989-04-05 Drive for machine tools

Publications (1)

Publication Number Publication Date
DE3911048A1 true DE3911048A1 (en) 1990-10-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893911048 Withdrawn DE3911048A1 (en) 1989-04-05 1989-04-05 Drive for machine tools

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203931A1 (en) * 1992-02-11 1993-08-12 Desch Kg Heinrich Planetary gearbox, clutch and brake for press drive - is automatically coupled to machine drive shaft by intermediate plate of oldham coupling when unit is assembled to machine frame
DE4234905A1 (en) * 1992-02-11 1993-08-12 Desch Kg Heinrich Planetary gearbox, clutch and brake unit for press drive - has hydrostatic lubrication to flywheel bearing and lubricating oil circulation to all moving parts
DE4342163A1 (en) * 1993-12-10 1995-06-14 Dorstener Maschf Ag Driving apparatus for mechanical press

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967489C (en) * 1943-07-15 1957-11-14 Fritz Werner Ag Milling spindle drive with flywheel arranged on the milling spindle
GB873190A (en) * 1960-02-01 1961-07-19 Gildemeister Werkzeugmasch Improvements in and relating to the drive of the tool spindle in a milling machine
DE2611799A1 (en) * 1975-03-21 1976-10-07 Hure Sa MACHINE TOOL WITH ROTATING SPINDLE
DE3011589A1 (en) * 1980-03-26 1981-10-01 L. Schuler GmbH, 7320 Göppingen CLUTCH AND BRAKE DEVICE FOR PRESSING, PUNCHING AND THE LIKE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967489C (en) * 1943-07-15 1957-11-14 Fritz Werner Ag Milling spindle drive with flywheel arranged on the milling spindle
GB873190A (en) * 1960-02-01 1961-07-19 Gildemeister Werkzeugmasch Improvements in and relating to the drive of the tool spindle in a milling machine
DE2611799A1 (en) * 1975-03-21 1976-10-07 Hure Sa MACHINE TOOL WITH ROTATING SPINDLE
DE3011589A1 (en) * 1980-03-26 1981-10-01 L. Schuler GmbH, 7320 Göppingen CLUTCH AND BRAKE DEVICE FOR PRESSING, PUNCHING AND THE LIKE
EP0036645B1 (en) * 1980-03-26 1984-01-25 L. SCHULER GmbH Clutch-brake mechanism for presses, punch presses, etc.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203931A1 (en) * 1992-02-11 1993-08-12 Desch Kg Heinrich Planetary gearbox, clutch and brake for press drive - is automatically coupled to machine drive shaft by intermediate plate of oldham coupling when unit is assembled to machine frame
DE4234905A1 (en) * 1992-02-11 1993-08-12 Desch Kg Heinrich Planetary gearbox, clutch and brake unit for press drive - has hydrostatic lubrication to flywheel bearing and lubricating oil circulation to all moving parts
DE4342163A1 (en) * 1993-12-10 1995-06-14 Dorstener Maschf Ag Driving apparatus for mechanical press

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