EP0636426A1 - Device and process for cleaning preferable metallic workpieces - Google Patents
Device and process for cleaning preferable metallic workpieces Download PDFInfo
- Publication number
- EP0636426A1 EP0636426A1 EP94111818A EP94111818A EP0636426A1 EP 0636426 A1 EP0636426 A1 EP 0636426A1 EP 94111818 A EP94111818 A EP 94111818A EP 94111818 A EP94111818 A EP 94111818A EP 0636426 A1 EP0636426 A1 EP 0636426A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- receiving device
- immersion
- liquid
- axis
- workpieces
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
Definitions
- the application relates to a device and a method for cleaning preferably metallic workpieces, in particular for removing solid and / or liquid residues such as sand, chips, lubricants or the like, with an immersion container for a washing liquid and with a holding device for the workpieces to be cleaned, whereby the receiving devices are rotatable about a turntable.
- Machining residues or impurities are often found on workpieces of the most varied shapes made of the most varied materials or material compositions of metallic or non-metallic type. These adhere both to the outer surface and to the inner wall surfaces of cavities or bores or other recesses. These can be both intermediate products and finished products.
- Such cleaning systems are used, for example, in the automotive industry to clean complicated workpieces, such as gears or crankshafts.
- Such devices are known, for example, from DE 35 39 620 C1. This describes a generic device with an immersion container for a washing liquid, in which a lifting frame projecting into the container is provided, on which a workpiece holder can be raised and lowered and can also be rotated about an axis of rotation.
- the workpiece is moved with an approximately horizontal axis of rotation on this mast into the immersion bath and irradiated with compressed air there, so that a horizontal "water roller” is formed which has a very good cleaning effect.
- EP 0 360 162 B1 it has been proposed in EP 0 360 162 B1 to use the workpieces in receiving carriers for cleaning, which are arranged in a star shape on a polygonal wheel projecting outwards.
- the polygonal wheel then rotates the receiving carriers successively into an immersion bath, the cleaning process being carried out by rotating the receiving carriers about an axis perpendicular to the polygonal wheel axis.
- This known device has also proven very successful.
- the object of the invention is therefore to propose a generic device and a corresponding method in which the dimensions of the immersion baths can be reduced.
- the receiving device can be pivoted about an essentially horizontal pivot axis running above the immersion tank between two positions, of which the first arranges the receiving device above the liquid level in the immersion tank and the second the receiving device in the immersion tank arranges substantially perpendicular axis of rotation.
- this object is achieved in that after the workpiece has been clamped above the liquid surface of the immersion bath, the receiving device with the workpiece is pivoted into the immersion bath about a pivot axis.
- the size of the work container is on the order of 30%; Achieving a vertical instead of a horizontal water roller also means an energy saving of approximately the same order of magnitude, since the vertical water roller is self-sustaining.
- the device is characterized in that the immersion bath is followed by an evaporator or maintenance system for wastewater-free operation.
- this is achieved by completely changing the liquid in the immersion bath after each cleaning process.
- the swivel angle about the swivel axis is approximately 90 °.
- nozzles connected to a pressure line for washing liquid and / or air are arranged in the immersion container for the workpiece to flow against the receiving device.
- Metallic workpieces 1 are preferably to be cleaned in an immersion container 10 which is filled with a washing liquid 16.
- a receiving device 20 of the device according to the invention is loaded in the swung-out state, ie a position above the immersion container 10, with the washing liquid 16, as shown in FIG. 1, with the workpiece 1 to be cleaned.
- the workpiece 1 is clamped in the holding device 20. This can happen automatically, for example in the course of a production line in the automotive industry.
- the holding device 20 together with the clamped workpiece 1 is pivoted downward about the horizontal pivot axis 25 through an angle 27 of approximately 90 °.
- the workpiece 1 and the receiving device 20 are thus immersed in the washing liquid 16.
- the workpiece 1 is now located completely below the liquid level 15 in the immersion container 10. This position of the device according to the invention is shown in FIG. 2.
- the receiving device 20 has an axis of rotation 26 with which the clamped workpiece 1 can be rotated about a longitudinal axis or an axis that is otherwise advantageous in terms of cleaning technology. Simultaneously with the pivoting process or thereafter, a rotation of the receiving device 20 with the clamped workpiece 1 begins about the now approximately vertical axis of rotation 26.
- 10 nozzles 40 can be arranged in the immersion container for the workpiece 1 to flow against it.
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
Die Anmeldung betrifft eine Vorrichtung und ein Verfahren zum Reinigen von vorzugsweise metallischen Werkstücken, insbesondere zum Beseitigen fester und/oder flüssiger Rückstände wie Sand, Späne, Schmiermittel oder dgl. mit einem Tauchbehälter für eine Waschflüssigkeit sowie mit einer Aufnahmevorrichtung für die zu reinigenden Werkstücke, wobei die Aufnahmevorrichtungen um eine Drehscheibe rotierbar sind.The application relates to a device and a method for cleaning preferably metallic workpieces, in particular for removing solid and / or liquid residues such as sand, chips, lubricants or the like, with an immersion container for a washing liquid and with a holding device for the workpieces to be cleaned, whereby the receiving devices are rotatable about a turntable.
Auf Werkstücken der verschiedensten Gestalten aus den unterschiedlichsten Materialien oder Materialzusammensetzungen metallischer oder nichtmetallicher Art befinden sich häufig Bearbeitungsrückstände oder Verunreinigungen. Diese haften sowohl auf der Außenoberfläche als auch an den Innenwandflächen von Hohlräumen oder Bohrungen oder anderen Ausnehmungen. Es kann sich dabei sowohl um Zwischenprodukte als auch um Fertigerzeugnisse handeln.Machining residues or impurities are often found on workpieces of the most varied shapes made of the most varied materials or material compositions of metallic or non-metallic type. These adhere both to the outer surface and to the inner wall surfaces of cavities or bores or other recesses. These can be both intermediate products and finished products.
Derartige Reinigungsanlagen finden beispielsweise in der Automobilindustrie Verwendung, um komplizierte Werkstücke, wie beispielsweise Getriebe oder Kurbelwellen, zu reinigen. Bekannt sind solche Vorrichtungen etwa aus der DE 35 39 620 C1. Diese beschreibt eine gattungsgemäße Vorrichtung mit einem Tauchbehälter für eine Waschflüssigkeit, bei dem ein in den Behälter ragendes Hubgerüst vorgesehen ist, an welchem ein Werkstückträger heb- und senkbar gehalten und außerdem um eine Drehachse drehbar ist.Such cleaning systems are used, for example, in the automotive industry to clean complicated workpieces, such as gears or crankshafts. Such devices are known, for example, from DE 35 39 620 C1. This describes a generic device with an immersion container for a washing liquid, in which a lifting frame projecting into the container is provided, on which a workpiece holder can be raised and lowered and can also be rotated about an axis of rotation.
Das Werkstück wird mit etwa horizontaler Drehachse an diesem Hubgerüst in das Tauchbad gefahren und dort mit Druckluft bestrahlt, so daß sich eine horizontale "Wasserwalze" bildet, die einen sehr guten Reinigungseffekt hat.The workpiece is moved with an approximately horizontal axis of rotation on this mast into the immersion bath and irradiated with compressed air there, so that a horizontal "water roller" is formed which has a very good cleaning effect.
Alternativ ist in der EP 0 360 162 B1 vorgeschlagen worden, die Werkstücke in Aufnahmeträger zur Reinigung einzusetzen, die an einem Polygonrad sternförmig nach außen ragend angeordnet sind. Das Polygonrad dreht dann die Aufnahmeträger nacheinander in ein Tauchbad hinein, wobei der Reinigungsvorgang durch Drehen der Aufnahmeträger um eine senkrecht zur Polygonradachse stehende Achse erfolgt. Auch diese bekannte Vorrichtung hat sich sehr bewährt.As an alternative, it has been proposed in EP 0 360 162 B1 to use the workpieces in receiving carriers for cleaning, which are arranged in a star shape on a polygonal wheel projecting outwards. The polygonal wheel then rotates the receiving carriers successively into an immersion bath, the cleaning process being carried out by rotating the receiving carriers about an axis perpendicular to the polygonal wheel axis. This known device has also proven very successful.
In bestimmten Anwendungsfällen ist es jedoch wünschenswert, die Tauchbäder möglichst klein zu halten.In certain applications, however, it is desirable to keep the immersion baths as small as possible.
Aufgabe der Erfindung ist es daher, eine gattungsgemäße Vorrichtung und ein entsprechendes Verfahren vorzuschlagen, bei dem die Abmessungen der Tauchbäder verkleinert werden können.The object of the invention is therefore to propose a generic device and a corresponding method in which the dimensions of the immersion baths can be reduced.
Diese Aufgabe wird anhand einer Vorrichtung dadurch gelöst, daß die Aufnahmevorrichtung um eine im wesentlichen horizontale, oberhalb des Tauchbehälters verlaufende Schwenkachse schwenkbar ist zwischen zwei Positionen, von denen die erste die Aufnahmevorrichtung oberhalb des Flüssigkeitsspiegels im Tauchbehälter anordnet und die zweite die Aufnahmevorrichtung im Tauchbehälter mit im wesentlichen senkrecht verlaufender Drehachse anordnet.This object is achieved on the basis of a device in that the receiving device can be pivoted about an essentially horizontal pivot axis running above the immersion tank between two positions, of which the first arranges the receiving device above the liquid level in the immersion tank and the second the receiving device in the immersion tank arranges substantially perpendicular axis of rotation.
Bei einem Verfahren wird diese Aufgabe dadurch gelöst, daß nach dem Einspannen des Werkstücks oberhalb der Flüssigkeitsoberfläche des Tauchbades die Aufnahmevorrichtung mit dem Werkstück um eine Schwenkachse in das Tauchbad hinein geschwenkt wird.In one method, this object is achieved in that after the workpiece has been clamped above the liquid surface of the immersion bath, the receiving device with the workpiece is pivoted into the immersion bath about a pivot axis.
Mit einer derartigen Konstruktion entsteht ein wesentlicher Vorteil: Die horizontale Wasserwalze aus der bekannten Reinigungsvorrichtung wird in eine "vertikale Wasserwalze" umgewandelt. Diese benötigt deutlich weniger Platz; durch das Hereinschwenken statt des Hub- und Absenkvorgangs wird auch die Konstruktion in der Mechanik wesentlich anspruchsloser. Der Schwenkvorgang selbst ist ebenfalls weniger platzaufwendig als der Hubvorgang.With such a construction there is a significant advantage: the horizontal water roller from the known cleaning device is converted into a "vertical water roller". This takes up significantly less space; by Swiveling in instead of the lifting and lowering process also makes the construction in mechanics much less demanding. The swiveling process itself is also less space-consuming than the lifting process.
Insgesamt wird damit ein deutlich kleineres Volumen im Arbeitsbehälter bzw. Tauchbad benötigt. Dies bedeutet von vornherein einen geringeren Wasser- bzw. Flüssigkeitsumlauf, wenn die Reinigungsflüssigkeit ihrerseits aufbereitet oder entsorgt wird.Overall, a significantly smaller volume is required in the working container or immersion bath. From the outset, this means less water or liquid circulation when the cleaning liquid itself is processed or disposed of.
Die Verkleinerung des Arbeitsbehälters beträgt größenordnungsmäßig 30%; das Erzielen einer vertikalen statt eine horizontalen Wasserwalze bedeutet zugleich eine Energieersparnis etwa in der gleichen Größenordnung, da die vertikale Wasserwalze selbsterhaltend ist.The size of the work container is on the order of 30%; Achieving a vertical instead of a horizontal water roller also means an energy saving of approximately the same order of magnitude, since the vertical water roller is self-sustaining.
Durch die Verkleinerung des Flüssigkeitsvolumens wird es möglich, einen weiteren Vorteil zu erzielen.By reducing the volume of the liquid, it becomes possible to achieve a further advantage.
In einer besonders bevorzugten Ausführungsform zeichnet sich die Vorrichtung dann dadurch aus, daß dem Tauchbad ein Verdampfer oder Pflegesystem für abwasserfreien Betrieb nachgeschaltet ist.In a particularly preferred embodiment, the device is characterized in that the immersion bath is followed by an evaporator or maintenance system for wastewater-free operation.
Bei einem Verfahren wird dies dadurch erzielt, daß die Flüssigkeit im Tauchbad nach jedem Reinigungsvorgang vollständig ausgewechselt wird.In one method, this is achieved by completely changing the liquid in the immersion bath after each cleaning process.
Es wird so möglich, ein autarkes System mit komplettein Badaustausch nach jedem Teil bzw. nach jedem Takt mit vertretbaren Pumpen- und Filterleistungen zu erzielen, anstelle einer konventionellen Druckumfluttechnik.This makes it possible to achieve a self-sufficient system with complete bath exchange after every part or after every cycle with justifiable pump and filter performance, instead of a conventional pressure circulation technology.
Besonders bevorzugt ist es darüber hinaus, wenn der Schwenkwinkel um die Schwenkachse etwa 90° beträgt.It is also particularly preferred if the swivel angle about the swivel axis is approximately 90 °.
Darüber hinaus ist es noch bevorzugt, wenn in dem Tauchbehälter mit einer Druckleitung für Waschflüssigkeit und/oder Luft verbundene Düsen zum Anströmen des Werkstücks in der Aufnahmevorrichtung angeordnet sind.In addition, it is also preferred if nozzles connected to a pressure line for washing liquid and / or air are arranged in the immersion container for the workpiece to flow against the receiving device.
Durch diese beiden Maßnahmen wird der Effekt besonders groß und die Mechanik zugleich besonders einfach, damit wenig störanfällig und unempfindlich.These two measures make the effect particularly large and the mechanics particularly simple at the same time, thus less prone to failure and insensitive.
Im folgenden wird anhand der Zeichnung ein Ausführungsbeispiel der Erfindung im einzelnen beschrieben.An exemplary embodiment of the invention is described in detail below with reference to the drawing.
Es zeigen:
- Fig. 1
- die erfindungsgemäße Vorrichtung in ihrer Stellung oberhalb des Tauchbades; und
- Fig. 2
- die Vorrichtung gemäß der Erfindung in ihrer Stellung im Tauchbad.
- Fig. 1
- the device according to the invention in its position above the immersion bath; and
- Fig. 2
- the device according to the invention in its position in the immersion bath.
Zu reinigen sind vorzugsweise metallische Werkstücke 1 in einem Tauchbehälter 10, welcher mit einer Waschflüssigkeit 16 gefüllt ist.
Eine Aufnahmevorrichtung 20 der Vorrichtung gemäß der Erfindung wird im ausgeschwenkten Zustand, i.e. eine Stellung oberhalb des Tauchbehälters 10 mit der Waschflüssigkeit 16, wie in Fig. 1 gezeigt, mit dem zu reinigenden Werkstück 1 beladen. Das Werkstück 1 wird in der Aufnahmevorrichtung 20 eingespannt. Dies kann automatisch, etwa im Ablauf einer Fertigungsstraße der Automobilindustrie, geschehen.
A
Daraufhin wird die Aufnahmevorrichtung 20 zusammen mit dem eingespannten Werkstück 1 um die horizontale Schwenkachse 25 über einen Winkel 27 von etwa 90° nach unten geschwenkt. Das Werkstück 1 sowie die Aufnahmevorrichtung 20 tauchen damit in die Waschflüssigkeit 16 ein. Das Werkstück 1 befindet sich nun vollständig unterhalb des Flüssigkeitsspiegels 15 im Tauchbehälter 10. Diese Position der Vorrichtung gemäß der Erfindung ist in Fig. 2 dargestellt.Thereupon, the
Neben der horizontalen Schwenkachse 25 besitzt die Aufnahmevorrichtung 20 eine Drehachse 26, mit der eine Drehung des eingespannten Werkstücks 1 um eine Längsachse oder sonst reinigungstechnisch günstige Achse erfolgen kann. Gleichzeitig mit dem Schwenkvorgang oder danach setzt eine Rotation der Aufnahmevorrichtung 20 mit dem eingespannten Werkstück 1 um die jetzt etwa vertikale Drehachse 26 ein.In addition to the
Zusätzlich können in dem Tauchbehälter 10 Düsen 40 zum Anströmen des Werkstücks 1 angeordnet sein.In addition, 10
Ein Verdampfer oder Pflegesystem 30, der/das dem Tauchbad nachgeschaltet sein kann, sorgt für abwasserfreien Betrieb.An evaporator or
Claims (6)
dadurch gekennzeichnet,
daß die Aufnahmevorrichtung (20) um eine im wesentlichen horizontale, oberhalb des Tauchbehälters (10) verlaufende Schwenkachse (25) schwenkbar ist zwischen zwei Positionen, von denen die erste die Aufnahmevorrichtung oberhalb des Flüssigkeitsspiegels (15) im Tauchbehälter anordnet und die zweite die Aufnahmevorrichtung im Tauchbehälter mit im wesentlichen senkrecht verlaufender Drehachse (26) anordnet.Device for cleaning preferably metallic workpieces (1), in particular for removing solid and / or liquid residues such as sand, chips, lubricants or the like. With an immersion container (10) for a washing liquid (16) and with a receiving device (20) for the workpieces to be cleaned, the receiving device being rotatable about an axis of rotation,
characterized,
that the receiving device (20) can be pivoted about a substantially horizontal pivot axis (25) extending above the immersion container (10) between two positions, of which the first arranges the receiving device above the liquid level (15) in the immersion container and the second the receiving device in Arrows immersion container with a substantially vertical axis of rotation (26).
dadurch gekennzeichnet,
daß der Schwenkwinkel (27) um die Schwenkachse etwa 90° beträgt.Device according to claim 1,
characterized,
that the pivot angle (27) is about 90 ° about the pivot axis.
dadurch gekennzeichnet,
daß in dem Tauchbehälter (10) mit einer Druckleitung (45) für Waschflüssigkeit und/oder Luft verbundene Düsen (40) zum Anströmen des Werkstücks (1) in der Aufnahmevorrichtung (20) angeordnet sind.Device according to claim 1 or 2,
characterized by
that in the immersion container (10) with a pressure line (45) for washing liquid and / or air nozzles (40) are arranged for the flow of the workpiece (1) in the receiving device (20).
dadurch gekennzeichnet,
daß dem Tauchbad ein Verdampfer oder Pflegesystem (30) für abwasserfreien Betrieb nachgeschaltet ist.Device according to one of the preceding claims,
characterized,
that the immersion bath is followed by an evaporator or maintenance system (30) for wastewater-free operation.
dadurch gekennzeichnet,
daß nach dem Einspannen des Werkstücks (1) oberhalb der Flüssigkeitsoberfläche des Tauchbades die Aufnahmevorrichtung mit dem Werkstück um eine Schwenkachse (25) in das Tauchbad hinein geschwenkt wird. Process for cleaning preferably metallic workpieces, in particular for removing solid and / or liquid residues such as sand, chips, lubricants or the like, in which the workpieces are clamped in a holding device and rotated with the latter in an immersion bath,
characterized,
that after clamping the workpiece (1) above the liquid surface of the immersion bath, the receiving device with the workpiece is pivoted into the immersion bath about a pivot axis (25).
dadurch gekennzeichnet,
daß die Flüssigkeit (16) im Tauchbad nach jedem Reinigungsvorgang vollständig ausgewechselt wird. Method according to claim 5,
characterized,
that the liquid (16) in the immersion bath is completely replaced after each cleaning process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4325013 | 1993-07-27 | ||
| DE4325013A DE4325013A1 (en) | 1993-07-27 | 1993-07-27 | Device and method for cleaning preferably metallic materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0636426A1 true EP0636426A1 (en) | 1995-02-01 |
| EP0636426B1 EP0636426B1 (en) | 1999-03-31 |
Family
ID=6493711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94111818A Expired - Lifetime EP0636426B1 (en) | 1993-07-27 | 1994-07-27 | Device and process for cleaning preferable metallic workpieces |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0636426B1 (en) |
| AT (1) | ATE178229T1 (en) |
| DE (2) | DE4325013A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2444161A1 (en) * | 1974-09-16 | 1976-04-01 | Duerr O Fa | Intensive washing of metal workpieces - in plant using both immersion in wash liq and numerous sprays |
| DE8437870U1 (en) * | 1984-12-22 | 1986-02-13 | Wache Oberflächentechnik GmbH & Co KG, 2000 Norderstedt | Device for washing preferably metallic workpieces |
| DE3539620C1 (en) * | 1985-11-08 | 1987-02-05 | Wache Oberflaechentechnik Gmbh | Device for cleaning preferably metal workpieces |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3831653A1 (en) * | 1988-09-17 | 1990-03-22 | Wache Oberflaechentechnik Gmbh | DEVICE FOR CLEANING PREFERABLY METAL WORKPIECES |
| DE4137445A1 (en) * | 1991-11-07 | 1993-05-13 | Wache Oberflaechentechnik Gmbh | METHOD AND DEVICE FOR REPROCESSING AQUEOUS, OIL AND / OR FATTY CLEANING SOLUTIONS |
-
1993
- 1993-07-27 DE DE4325013A patent/DE4325013A1/en not_active Withdrawn
-
1994
- 1994-07-27 EP EP94111818A patent/EP0636426B1/en not_active Expired - Lifetime
- 1994-07-27 AT AT94111818T patent/ATE178229T1/en not_active IP Right Cessation
- 1994-07-27 DE DE59408025T patent/DE59408025D1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2444161A1 (en) * | 1974-09-16 | 1976-04-01 | Duerr O Fa | Intensive washing of metal workpieces - in plant using both immersion in wash liq and numerous sprays |
| DE8437870U1 (en) * | 1984-12-22 | 1986-02-13 | Wache Oberflächentechnik GmbH & Co KG, 2000 Norderstedt | Device for washing preferably metallic workpieces |
| DE3539620C1 (en) * | 1985-11-08 | 1987-02-05 | Wache Oberflaechentechnik Gmbh | Device for cleaning preferably metal workpieces |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59408025D1 (en) | 1999-05-06 |
| ATE178229T1 (en) | 1999-04-15 |
| EP0636426B1 (en) | 1999-03-31 |
| DE4325013A1 (en) | 1995-02-02 |
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