EP1396310B1 - Surfacing process and machine - Google Patents

Surfacing process and machine Download PDF

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Publication number
EP1396310B1
EP1396310B1 EP03016703A EP03016703A EP1396310B1 EP 1396310 B1 EP1396310 B1 EP 1396310B1 EP 03016703 A EP03016703 A EP 03016703A EP 03016703 A EP03016703 A EP 03016703A EP 1396310 B1 EP1396310 B1 EP 1396310B1
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EP
European Patent Office
Prior art keywords
pressure load
workpiece
surfacing
electric drive
tool
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Expired - Lifetime
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EP03016703A
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German (de)
French (fr)
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EP1396310A1 (en
Inventor
Josef Gröber
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IBZ GmbH
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IBZ GmbH
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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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency

Definitions

  • the present invention relates to a Surface treatment device, such as a Bandfinishvoriques, as well as a method for Surface machining of a workpiece, e.g. known from EP-A-1 027 956.
  • the band finishing device has a band and a Anpressteil, which is intended, the tape against the To press workpiece.
  • the Anpressteil is by a pneumatically actuated piston, with a pressure is pneumatically controlled between the belt and the workpiece.
  • a first aspect of the invention for solving the asked Task relates to a surface treatment device for Surface machining of a workpiece according to the features of claim 1.
  • a second aspect of the invention for solving the asked Task relates to a method for surface treatment of a workpiece according to the features of claim 8.
  • the particular advantage of the invention is that for the operation the surface processing device only electrical Energy but no further or additional drive energy like e.g. Compressed air is required.
  • the target pressure between the surface treatment tool and the workpiece constantly kept constant as it is electronically regulated becomes.
  • Fig. 1 shows a surface treatment device 1 with a housing 2
  • Fig. 2 the Surface treatment device 1 without the housing 2 shows, such that the internal structure of the surface processing device 1 is partially recognizable.
  • the shown in Figures 1 and 2 Surface treatment device 1 according to the Embodiment is a belt finishing device, the one Surface of a workpiece (not shown) polished, grinds or otherwise processed.
  • the machining of the workpiece is done by a in the field the surface technology usual tape or finishing tape (respectively not shown) as a surface working tool associated with an adjustable pressure load against the workpiece surface pressed and at the same time by a below described Construction on the surface is moved.
  • the belt finishing device generally has a pressing part 3, which the surface treatment tool against the workpiece suppressed.
  • a pressing part 3 which the surface treatment tool against the workpiece suppressed.
  • Anpressteil 3 with a contact roller 3 running to the one Machining tool (e.g., belt) is wound.
  • the contact role 3 is preferably made of elastomer and may itself as well Surface machining tool to be executed.
  • Figures 1 and 2 a take-up reel 6, the is driven by a take-up drive 5, a Unwinding roller 4 and a deflection roller 7, around which the band is wound. All reels 3, 4, 6 and 7 are on a sled 8 supported.
  • the carriage 8 in turn is linearly movable on a rail 9 supported.
  • the rail 9 is at a border 10 formed on any machine tool (not shown) is fixedly attached.
  • the whole Surface treatment device 1 is thus on the Mount 10 is fixedly supported on the machine tool while the carriage 8 is movable relative to the machine tool, which is explained below.
  • an electric drive 11 is arranged in the enclosure 10.
  • the electric drive 11 is fixed to the enclosure 10 connected.
  • the electric drive 11 is connected via a Power source (not shown) an electric current fed.
  • the electric drive 11 thereby drives one Feed unit 12, which is firmly connected to the carriage 8 is.
  • the carriage 8 by the electric drive 11 or a curve moves.
  • the surface processing apparatus 1 further has a control device (Not shown).
  • the control device regulates the electrical Drive 11 such that a desired target pressure load between the surface treatment tool and the workpiece established.
  • This control is preferably by supplying a corresponding electric current, or generally one electrical power, in the electric drive 11 realized.
  • the target pressure load may be, for example, a desired pressure or a Target pressure force to be. If the electric drive 11 is e.g. the appropriate current or power actually supplied is, then presses the surface treatment tool with the Target force or with the target pressure against the workpiece.
  • finishing tool is a tape
  • a Reel with the wrapped band (not shown) first at the Unwinding 4 arranged.
  • a free end of the band will be over the deflection roller 7 and wound around the contact roller 3 and then attached to the take-up reel 6.
  • the control device then leads the electric drive 11 corresponding electrical power or electric current to.
  • the carriage 8 moves to the workpiece and presses the contact roller 3 against the target pressure load the workpiece.
  • a vibration drive or actuator drives (not shown) the contact roller 3 in its axial direction oscillating.
  • the tape is replaced by an overlay of Feed movement and the oscillating motion at the Surface of the workpiece moves and with the target pressure load against pressed the workpiece, creating an excellent Surface quality is achieved.
  • the warms up Workpiece surface only small, so that soft skin formation, Residual stresses, microstructural changes and cracks are avoided.
  • the particular advantage of the invention is that for the operation the surface processing device 1 only electrical Energy but no further or additional drive energy like e.g. Compressed air is required.
  • the target pressure load between the surface processing tool and the workpiece can be constantly kept constant because it is electronically controlled.
  • Conventional pneumatic controls have relatively large pressure fluctuations, which can lead to an uneven compressive load and thus uneven surface quality.
  • the invention can be modified or developed as follows.
  • a current measuring device is provided, the electrical drive 11 supplied electrical Amperage measures and a signal corresponding to the measured Amperage of the control device supplies.
  • the control device determines a pressure load from the measured current between the surface treatment tool and the workpiece.
  • the control device on a table, a Characteristic, Drucklasteichung or another figure reference take, or it can take the pressure load from a mathematical Calculate formula. Based on the specific pressure load electric drive controls the control device the electric drive 11 such that the target pressure load established.
  • the electric drive 11 supplied Power or current based on the measured Amperage be regulated. This will put the pressure load between the machining tool and workpiece more precisely on the Set pressure load set.
  • control device determines from the target pressure load a power to be supplied to the electric drive 11.
  • the Target pressure load can be via an input device in the Control electronics are entered.
  • the control electronics determines on the basis of the entered nominal pressure load, the electric drive 11 power to be supplied from a table, Characteristic curve, pressure load calibration or from another illustration.
  • a pressure load measuring device for measuring the Pressure load between the machining tool and the workpiece intended.
  • the pressure load measuring device sends a signal according to the measured pressure load to the control device. This allows the control device to the electric drive 11 supplied electric power or current on the Regulate the basis of the measured pressure load, reducing the pressure load between the tape and the editing tool even more detail the target pressure load is regulated.
  • the pressure load measuring device can be arbitrary in the power flow be arranged, that is, they can, for example, directly to the Pressing part 3, the pressure roller 10, the feed unit 12 or be the electric drive 11, since, for example, the pressure force in the power flow between electric drive 11 and the workpiece is substantially the same.
  • the feed unit 12 of the electric Drive 11 a threaded spindle. This can be done simultaneously large stroke and a reasonable pressure to be generated.
  • the invention is not limited to that of electric drive is a spindle motor or the like. It It is also conceivable that the electric drive is a linear motor or a piezo actuator. In the case of a piezo actuator controls the control device applied to the piezoelectric actuator electrical voltage instead of electric current, such as this e.g. in an electric motor is the case.
  • control device can the take-up 5, the the tape is wrapped around the take - up reel 4, so that the Feeding the tape has a constant speed.
  • This is advantageously a uniform Surface finish achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The workpiece surface processing device (1) has a surface processing tool and a pressure part (3) that is provided to press the surface processing tool against the workpiece, an electric drive for driving the pressure part and a control device that controls the electric drive so that a desired pressure is set up between the tool and the workpiece. AN Independent claim is also included for the following: (a) an a method of processing workpiece surfaces using the inventive device.

Description

Die vorliegende Erfindung betrifft eine Oberflächenbearbeitungsvorrichtung, wie zum Beispiel eine Bandfinishvorrichtung, sowie ein Verfahren zur Oberflächenbearbeitung eines Werkstücks, z.B. bekannt aus der EP-A-1 027 956.The present invention relates to a Surface treatment device, such as a Bandfinishvorrichtung, as well as a method for Surface machining of a workpiece, e.g. known from EP-A-1 027 956.

Die DE 295 14 753 U1 beschreibt eine übliche Oberflächenbearbeitungsvorrichtung in Gestalt einer Bandfinishvorrichtung zur Oberflächenbearbeitung eines Werkstücks. Die Bandfinishvorrichtung hat ein Band und ein Anpressteil, das dazu vorgesehen ist, das Band gegen das Werkstück zu drücken. Das Anpressteil wird durch einen pneumatisch betätigten Kolben angetrieben, wobei ein Druck zwischen dem Band und dem Werkstück pneumatisch gesteuert wird.DE 295 14 753 U1 describes a conventional Surface treatment device in the form of a Band finishing device for surface treatment of a Workpiece. The band finishing device has a band and a Anpressteil, which is intended, the tape against the To press workpiece. The Anpressteil is by a pneumatically actuated piston, with a pressure is pneumatically controlled between the belt and the workpiece.

Die DE 42 27 315 C2 schlägt vor, den Druck mittels einer mechanischen Justiervorrichtung einmalig genau einzustellen.DE 42 27 315 C2 proposes the pressure by means of a Adjust the mechanical adjustment device once exactly.

Die DE 195 15 076 C2 offenbart eine manuelle Verschiebung des Anpressteils in Richtung des Werkstücks und alternativ eine automatische Verschiebung des Anpressteils mittels eines Zylinders oder einer Spindel. Jedoch kann eine derartige Verschiebung im Bearbeitungsprozess nicht korrigiert werden.DE 195 15 076 C2 discloses a manual displacement of the Anpressteils in the direction of the workpiece and alternatively a automatic displacement of the pressing by means of a Cylinder or a spindle. However, such a Shift in the machining process can not be corrected.

Es ist die Aufgabe der Erfindung, eine Oberflächenbearbeitungsvorrichtung vorzusehen, die einen regelbaren konstanten Anpressdruck zwischen der Oberflächenbearbeitungsvorrichtung und Werkstück während des Bearbeitungsprozesses erzielt.It is the object of the invention to provide a Surface treatment device to provide a Adjustable constant contact pressure between the Surface treatment device and workpiece during the Achieved machining process.

Ein erster Aspekt der Erfindung zur Lösung der gestellten Aufgabe betrifft eine Oberflächenbearbeitungsvorrichtung zur Oberflächenbearbeitung eines Werkstücks gemäß den Merkmalen des Anspruchs 1. A first aspect of the invention for solving the asked Task relates to a surface treatment device for Surface machining of a workpiece according to the features of claim 1.

Ein zweiter Aspekt der Erfindung zur Lösung der gestellten Aufgabe betrifft ein Verfahren zur Oberflächenbearbeitung eines Werkstücks gemäß den Merkmalen des Anspruchs 8.A second aspect of the invention for solving the asked Task relates to a method for surface treatment of a workpiece according to the features of claim 8.

Der besondere Vorteil der Erfindung ist, dass für den Betrieb der Oberflächenbearbeitungsvorrichtung einzig elektrische Energie aber keine weitere oder zusätzliche Antriebsenergie wie z.B. Druckluft erforderlich ist. Außerdem kann der Soll-Druck zwischen dem Oberflächenbearbeitungswerkzeug und dem Werkstück ständig konstant gehalten werden, da er elektronisch geregelt wird.The particular advantage of the invention is that for the operation the surface processing device only electrical Energy but no further or additional drive energy like e.g. Compressed air is required. In addition, the target pressure between the surface treatment tool and the workpiece constantly kept constant as it is electronically regulated becomes.

Vorteilhafte Weiterbildungen sind in den Unteransprüchen definiert.Advantageous developments are in the dependent claims Are defined.

Ein bevorzugtes Ausführungsbeispiel der Erfindung wird nun unter Bezugnahme auf die beigefügten Zeichnungen beschrieben.

  • Fig. 1 zeigt eine perspektivische Ansicht einer Oberflächenbearbeitungsvorrichtung gemäß dem Ausführungsbeispiel; und
  • Fig. 2 zeigt eine andere perspektivische Ansicht der Oberflächenbearbeitungsvorrichtung gemäß dem Ausführungsbeispiel.
    • A preferred embodiment of the invention will now be described with reference to the accompanying drawings.
  • FIG. 1 is a perspective view of a surface processing apparatus according to the embodiment; FIG. and
  • Fig. 2 shows another perspective view of the surface processing apparatus according to the embodiment.

    • Die Fig. 1 zeigt eine Oberflächenbearbeitungsvorrichtung 1 mit einem Gehäuse 2, während die Fig. 2 die Oberflächenbearbeitungsvorrichtung 1 ohne das Gehäuse 2 zeigt, so dass der Innenaufbau der Oberflächenbearbeitungsvorrichtung 1 teilweise erkenntlich ist.Fig. 1 shows a surface treatment device 1 with a housing 2, while Fig. 2 the Surface treatment device 1 without the housing 2 shows, such that the internal structure of the surface processing device 1 is partially recognizable.

    Die in den Figuren 1 und 2 gezeigte Oberflächenbearbeitungsvorrichtung 1 gemäß dem Ausführungsbeispiel ist eine Bandfinishvorrichtung, die eine Oberfläche eines Werkstücks (nicht gezeigt) poliert, schleift oder anderweitig bearbeitet.The shown in Figures 1 and 2 Surface treatment device 1 according to the Embodiment is a belt finishing device, the one Surface of a workpiece (not shown) polished, grinds or otherwise processed.

    Die Bearbeitung des Werkstücks erfolgt durch ein auf dem Gebiet der Oberflächentechnik übliches Band bzw. Finishband (jeweils nicht gezeigt) als ein Oberflächenbearbeitungswerkzeug, das mit einer einstellbaren Drucklast gegen die Werkstückoberfläche gedrückt und gleichzeitig durch einen nachfolgend beschriebenen Aufbau an der Oberfläche bewegt wird.The machining of the workpiece is done by a in the field the surface technology usual tape or finishing tape (respectively not shown) as a surface working tool associated with an adjustable pressure load against the workpiece surface pressed and at the same time by a below described Construction on the surface is moved.

    Die Bandfinishvorrichtung hat im allgemeinen ein Anpressteil 3, welches das Oberflächenbearbeitungswerkzeug gegen das Werkstück drückt. Bei der dargestellten Finishvorrichtung ist das Anpressteil 3 mit einer Kontaktrolle 3 ausgeführt, um die ein Bearbeitungswerkzeug (z.B. Band) gewickelt ist. Die Kontaktrolle 3 besteht vorzugsweise aus Elastomer und kann selbst auch als Oberflächenbearbeitungswerkzeug ausgeführt sein. The belt finishing device generally has a pressing part 3, which the surface treatment tool against the workpiece suppressed. In the illustrated finishing device that is Anpressteil 3 with a contact roller 3 running to the one Machining tool (e.g., belt) is wound. The contact role 3 is preferably made of elastomer and may itself as well Surface machining tool to be executed.

    Ferner zeigen die Figuren 1 und 2 eine Aufwickelrolle 6, die durch einen Aufwickelantrieb 5 angetrieben wird, eine Abwickelrolle 4 sowie eine Umlenkrolle 7, um die das Band gewickelt ist. Alle Rollen 3, 4, 6 und 7 sind an einem Schlitten 8 gestützt. Der Schlitten 8 wiederum ist linear bewegbar an einer Schiene 9 gestützt. Die Schiene 9 ist an einer Einfassung 10 ausgebildet, die an einer beliebigen Werkzeugmaschine (nicht gezeigt) ortsfest anbringbar ist. Die gesamte Oberflächenbearbeitungsvorrichtung 1 ist somit über die Einfassung 10 ortsfest an der Werkzeugmaschine gestützt, während der Schlitten 8 relativ zu der Werkzeugmaschine bewegbar ist, was nachfolgend erläutert wird.Furthermore, Figures 1 and 2, a take-up reel 6, the is driven by a take-up drive 5, a Unwinding roller 4 and a deflection roller 7, around which the band is wound. All reels 3, 4, 6 and 7 are on a sled 8 supported. The carriage 8 in turn is linearly movable on a rail 9 supported. The rail 9 is at a border 10 formed on any machine tool (not shown) is fixedly attached. The whole Surface treatment device 1 is thus on the Mount 10 is fixedly supported on the machine tool while the carriage 8 is movable relative to the machine tool, which is explained below.

    In der Einfassung 10 ist ein elektrischer Antrieb 11 angeordnet. Der elektrische Antrieb 11 ist fest mit der Einfassung 10 verbunden. Dem elektrischen Antrieb 11 wird über eine Stromquelle (nicht gezeigt) eine elektrische Stromstärke zugeführt. Der elektrische Antrieb 11 treibt dadurch eine Vorschubeinheit 12 an, die fest mit dem Schlitten 8 verbunden ist. Somit wird der Schlitten 8 durch den elektrischen Antrieb 11 oder eine Kurve bewegt.In the enclosure 10, an electric drive 11 is arranged. The electric drive 11 is fixed to the enclosure 10 connected. The electric drive 11 is connected via a Power source (not shown) an electric current fed. The electric drive 11 thereby drives one Feed unit 12, which is firmly connected to the carriage 8 is. Thus, the carriage 8 by the electric drive 11 or a curve moves.

    Die Oberflächenbearbeitungsvorrichtung 1 gemäß dem ersten Ausführungsbeispiel hat des weiteren eine Regelvorrichtung (nicht gezeigt). Die Regelvorrichtung regelt den elektrischen Antrieb 11 derart, dass sich eine gewünschte Soll-Drucklast zwischen dem Oberflächenbearbeitungswerkzeug und dem Werkstück einstellt.The surface processing apparatus 1 according to the first Embodiment further has a control device (Not shown). The control device regulates the electrical Drive 11 such that a desired target pressure load between the surface treatment tool and the workpiece established.

    Diese Regelung wird vorzugsweise durch eine Zufuhr einer entsprechenden elektrischen Stromstärke, oder allgemein einer elektrischen Leistung, in den elektrischen Antrieb 11 verwirklicht.This control is preferably by supplying a corresponding electric current, or generally one electrical power, in the electric drive 11 realized.

    Die Soll-Drucklast kann zum Beispiel ein Soll-Druck oder eine Soll-Druckkraft sein. Wenn dem elektrischen Antrieb 11 z.B. die entsprechende Stromstärke bzw. Leistung tatsächlich zugeführt wird, dann drückt das Oberflächenbearbeitungswerkzeug mit der Soll-Kraft bzw. mit dem Soll-Druck gegen das Werkstück.The target pressure load may be, for example, a desired pressure or a Target pressure force to be. If the electric drive 11 is e.g. the appropriate current or power actually supplied is, then presses the surface treatment tool with the Target force or with the target pressure against the workpiece.

    Der Betrieb sowie die Regelung der Oberflächenbearbeitungsvorrichtung 1 werden nachfolgend näher beschrieben.The operation as well as the regulation of Surface treatment device 1 will be closer in the following described.

    Ist das Oberflächenbearbeitungswerkzeug ein Band, wird eine Haspel mit dem umwickelten Band (nicht gezeigt) zunächst an der Abwickelrolle 4 angeordnet. Ein freies Ende des Bands wird um die Umlenkrolle 7 sowie um die Kontaktrolle 3 gewickelt und anschließend an der Aufwickelrolle 6 befestigt.If the finishing tool is a tape, a Reel with the wrapped band (not shown) first at the Unwinding 4 arranged. A free end of the band will be over the deflection roller 7 and wound around the contact roller 3 and then attached to the take-up reel 6.

    Die Regelvorrichtung führt dem elektrischen Antrieb 11 dann die entsprechende elektrische Leistung oder elektrische Stromstärke zu. Infolgedessen bewegt sich der Schlitten 8 zu dem Werkstück und drückt die Kontaktrolle 3 mit der Soll-Drucklast gegen das Werkstück.The control device then leads the electric drive 11 corresponding electrical power or electric current to. As a result, the carriage 8 moves to the workpiece and presses the contact roller 3 against the target pressure load the workpiece.

    Gleichzeitig wird die Aufwickelrolle 6 durch den Aufwickelantrieb 5 gedreht, um das Band um die Aufwickelrolle 6 zu wickeln. Diese Bandbewegung wird als ein Vorschub des Bands bezeichnet. Zusätzlich treibt ein Schwingantrieb bzw. -aktuator (nicht gezeigt) die Kontaktrolle 3 in deren axialer Richtung oszillierend an.At the same time the take-up roller 6 by the Winding 5 is rotated to the tape around the take-up reel. 6 to wrap. This tape movement is called a feed of the tape designated. In addition, a vibration drive or actuator drives (not shown) the contact roller 3 in its axial direction oscillating.

    Infolgedessen wird das Band durch eine Überlagerung der Vorschubbewegung und der oszillierenden Bewegung an der Oberfläche des Werkstück bewegt und mit der Soll-Drucklast gegen das Werkstück gedrückt, wodurch eine ausgezeichnete Oberflächengüte erzielt wird. Darüber hinaus erwärmt sich die Werkstückoberfläche nur gering, so dass Weichhautbildung, Eigenspannungen, Gefügeveränderungen und Risse vermieden werden. As a result, the tape is replaced by an overlay of Feed movement and the oscillating motion at the Surface of the workpiece moves and with the target pressure load against pressed the workpiece, creating an excellent Surface quality is achieved. In addition, the warms up Workpiece surface only small, so that soft skin formation, Residual stresses, microstructural changes and cracks are avoided.

    Der besondere Vorteil der Erfindung ist, dass für den Betrieb der Oberflächenbearbeitungsvorrichtung 1 einzig elektrische Energie aber keine weitere oder zusätzliche Antriebsenergie wie z.B. Druckluft erforderlich ist.The particular advantage of the invention is that for the operation the surface processing device 1 only electrical Energy but no further or additional drive energy like e.g. Compressed air is required.

    Außerdem kann die Soll-Drucklast zwischen dem Oberflächenbearbeitungswerkzeug und dem Werkstück ständig konstant gehalten werden, da sie elektronisch geregelt wird. Herkömmliche pneumatische Steuerungen weisen relativ große Druckschwankungen auf, was zu einer ungleichmäßigen Drucklast und somit ungleichmäßigen Oberflächengüte führen kann.
    Die Erfindung kann folgendermaßen abgewandelt oder weitergebildet werden.    In addition, the target pressure load between the surface processing tool and the workpiece can be constantly kept constant because it is electronically controlled. Conventional pneumatic controls have relatively large pressure fluctuations, which can lead to an uneven compressive load and thus uneven surface quality.
    The invention can be modified or developed as follows.

    Es ist eine Stromstärkenmessvorrichtung vorgesehen, die dem elektrischen Antrieb 11 zugeführte elektrische Stromstärke misst und ein Signal entsprechend der gemessenen Stromstärke der Regelvorrichtung zuführt. Die Regelvorrichtung bestimmt dann aus der gemessenen Stromstärke eine Drucklast zwischen dem Oberflächenbearbeitungswerkzeug und dem Werkstück. Hierbei kann die Regelvorrichtung auf eine Tabelle, eine Kennlinie, Drucklasteichung oder eine sonstige Abbildung bezug nehmen, oder sie kann die Drucklast aus einer mathematischen Formel berechnen. Auf der Grundlage der bestimmten Drucklast elektrischen Antrieb regelt die Regelvorrichtung den elektrischen Antrieb 11 derart, dass sich die Soll-Drucklast einstellt.A current measuring device is provided, the electrical drive 11 supplied electrical Amperage measures and a signal corresponding to the measured Amperage of the control device supplies. The control device then determines a pressure load from the measured current between the surface treatment tool and the workpiece. Here, the control device on a table, a Characteristic, Drucklasteichung or another figure reference take, or it can take the pressure load from a mathematical Calculate formula. Based on the specific pressure load electric drive controls the control device the electric drive 11 such that the target pressure load established.

    Zusätzlich kann die dem elektrischen Antrieb 11 zugeführte Leistung oder Stromstärke auf der Grundlage der gemessenen Stromstärke geregelt werden. Dadurch wird die Drucklast zwischen dem Bearbeitungswerkzeug und Werkstück noch genauer auf die Soll-Drucklast eingestellt.In addition, the electric drive 11 supplied Power or current based on the measured Amperage be regulated. This will put the pressure load between the machining tool and workpiece more precisely on the Set pressure load set.

    Alternativ bestimmt die Regelvorrichtung aus der Soll-Drucklast eine dem elektrischen Antrieb 11 zuzuführende Leistung. Die Soll-Drucklast kann über eine Eingabevorrichtung in die Regelelektronik eingegeben werden. Die Regelelektronik bestimmt auf der Grundlage der eingegebenen Soll-Drucklast die dem elektrischen Antrieb 11 zuzuführende Leistung aus einer Tabelle, Kennlinie, Drucklasteichung oder aus einer sonstigen Abbildung.Alternatively, the control device determines from the target pressure load a power to be supplied to the electric drive 11. The Target pressure load can be via an input device in the Control electronics are entered. The control electronics determines on the basis of the entered nominal pressure load, the electric drive 11 power to be supplied from a table, Characteristic curve, pressure load calibration or from another illustration.

    Alternativ ist eine Drucklastmessvorrichtung zum Messen der Drucklast zwischen dem Bearbeitungswerkzeug und dem Werkstück vorgesehen. Die Drucklastmessvorrichtung sendet ein Signal entsprechend der gemessenen Drucklast zu der Regelvorrichtung. Dadurch kann die Regelvorrichtung die dem elektrischen Antrieb 11 zugeführte elektrische Leistung bzw. Stromstärke auf der Grundlage der gemessenen Drucklast regeln, wodurch die Drucklast zwischen dem Band und dem Bearbeitungswerkzeug noch genauer auf die Soll-Drucklast geregelt wird.Alternatively, a pressure load measuring device for measuring the Pressure load between the machining tool and the workpiece intended. The pressure load measuring device sends a signal according to the measured pressure load to the control device. This allows the control device to the electric drive 11 supplied electric power or current on the Regulate the basis of the measured pressure load, reducing the pressure load between the tape and the editing tool even more detail the target pressure load is regulated.

    Die Drucklastmessvorrichtung kann beliebig im Kraftfluss angeordnet sein, das heißt sie kann zum Beispiel direkt an dem Anpressteil 3, der Anpressrolle 10, der Vorschubeinheit 12 oder dem elektrischen Antrieb 11 sein, da zum Beispiel die Druckkraft im Kraftfluss zwischen elektrischem Antrieb 11 und dem Werkstück im wesentlichen gleich ist.The pressure load measuring device can be arbitrary in the power flow be arranged, that is, they can, for example, directly to the Pressing part 3, the pressure roller 10, the feed unit 12 or be the electric drive 11, since, for example, the pressure force in the power flow between electric drive 11 and the workpiece is substantially the same.

    Vorzugsweise ist die Vorschubeinheit 12 des elektrischen Antriebs 11 eine Gewindespindel. Dadurch können gleichzeitig ein großer Hub und ein angemessener Druck erzeugt werden.Preferably, the feed unit 12 of the electric Drive 11 a threaded spindle. This can be done simultaneously large stroke and a reasonable pressure to be generated.

    Die Erfindung ist jedoch nicht darauf beschränkt, dass der elektrische Antrieb ein Spindelmotor oder dergleichen ist. Es ist auch denkbar, dass der elektrische Antrieb ein Linearmotor oder ein Piezoaktuator ist. Im Falle eines Piezoaktuators regelt die Regelvorrichtung eine auf den Piezoaktuator aufgebrachte elektrische Spannung anstelle der elektrischen Stromstärke, wie dies z.B. bei einem Elektromotor der Fall ist. However, the invention is not limited to that of electric drive is a spindle motor or the like. It It is also conceivable that the electric drive is a linear motor or a piezo actuator. In the case of a piezo actuator controls the control device applied to the piezoelectric actuator electrical voltage instead of electric current, such as this e.g. in an electric motor is the case.

    Zusätzlich kann die Regelvorrichtung den Aufwickelmotor 5, der das Band um die Aufwickelrolle 4 wickelt, so steuern, dass der Vorschub des Bands eine konstante Geschwindigkeit aufweist. Dadurch wird in vorteilhafter Weise eine einheitliche Oberflächengüte erzielt. Im Gegensatz dazu erhöht sich bei den herkömmlichen Oberflächenbearbeitungsvorrichtungen der Bandvorschub im Verlaufe des Bearbeitungsprozesses, da sich das Band um die. Aufwickelrolle 4 mit immer größerer werdenden Durchmesser aufwickelt.In addition, the control device can the take-up 5, the the tape is wrapped around the take - up reel 4, so that the Feeding the tape has a constant speed. This is advantageously a uniform Surface finish achieved. In contrast, increases in the conventional surface treatment devices of Tape feed in the course of the machining process, as the Band around the. Take-up reel 4 with ever-increasing Winding diameter.

    Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt, da innerhalb des in den Ansprüchen definierten Umfangs der Erfindung weitere Abwandlungen und Äquivalente für einen Fachmann offensichtlich sind.The invention is not limited to the illustrated embodiment limited, as within the defined in the claims Scope of the invention further modifications and equivalents for a person skilled in the art are obvious.

    Claims (11)

    1. Surfacing machine (1) for machining the surface of a workpiece, with
      a surfacing tool,
      a pressure part (3) intended to press the surfacing tool against the workpiece,
      a drive apparatus (11) to drive the pressure part (3), and
      a control device which controls the drive apparatus (11) so that a required pressure load is established between the surfacing tool and the workpiece,
      characterized by
      an electric motor (11) as the drive apparatus and
      a current intensity measuring device for measuring the intensity of a current supplied to the electric drive (11), the control device determining a pressure load between the surfacing tool and the workpiece from the measured current intensity and controlling or regulating a power to be supplied to the electric drive (11) on the basis of the determined pressure load so that the required pressure load is established.
    2. Surfacing machine (1) according to Claim 1, characterized in that a power to be supplied to the electric drive (11) can be determined by the control device on the basis of the required pressure load.
    3. Surfacing machine (1) according to Claim 1, characterized by a pressure load measuring device for measuring a pressure load between the surfacing tool and the workpiece, wherein a power to be supplied to the electric drive (11) can be regulated by the control device on the basis of the measured pressure load.
    4. Surfacing machine (1) according to any one of the preceding claims, characterized in that a feed of the surfacing tool can be controlled with constant speed by the control device.
    5. Surfacing machine (1) according to any one of the preceding claims, characterized in that the electric drive (11) has a spindle and preferably a threaded spindle (12).
    6. Surfacing machine (1) according to any one of Claims 1 to 3, characterized in that the electric drive is a linear motor or a piezo actuator.
    7. Surfacing machine (1) according to any one of the preceding claims, characterized in that the surfacing tool is a belt.
    8. Process for machining the surface of a workpiece using a surfacing machine (1) with a surfacing tool and a pressure part (3) which is intended to press the surfacing tool against the workpiece, with steps comprising
      control of an electric drive (11) to drive the pressure part (3) so that a required pressure load is established between the surfacing tool and the workpiece,
      measurement of the intensity of the current supplied to the electric drive (11),
      determination of a pressure load between the surfacing tool and the tool from the measured current intensity, and
      control of a power to be supplied to the electric drive (11) on the basis of the determined pressure load so that the required pressure load is established.
    9. Process according to Claim 8, characterized by determination of a power to be supplied to the electric drive (11) on the basis of the required pressure load.
    10. Process according to Claim 8, characterized by
      measurement of a pressure load between the surfacing tool and the workpiece, and
      regulation of a power to be supplied to the electric drive (11) on the basis of the measured pressure load.
    11. Process according to any one of Claims 8 to 10, characterized by control of a feed of the surfacing tool with constant speed.
    EP03016703A 2002-09-06 2003-07-22 Surfacing process and machine Expired - Lifetime EP1396310B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10241417 2002-09-06
    DE10241417A DE10241417A1 (en) 2002-09-06 2002-09-06 Surface treatment device and method

    Publications (2)

    Publication Number Publication Date
    EP1396310A1 EP1396310A1 (en) 2004-03-10
    EP1396310B1 true EP1396310B1 (en) 2005-12-14

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    ID=31502459

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03016703A Expired - Lifetime EP1396310B1 (en) 2002-09-06 2003-07-22 Surfacing process and machine

    Country Status (3)

    Country Link
    EP (1) EP1396310B1 (en)
    AT (1) ATE312685T1 (en)
    DE (2) DE10241417A1 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102011012337B4 (en) * 2011-02-24 2013-01-24 Thielenhaus Technologies Gmbh Device for band finishing

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    IT1013609B (en) * 1974-05-09 1977-03-30 Finike Italiana Marpuss Soc In METHOD AND RELATED EQUIPMENT FOR THE CONTROL AND ADJUSTMENT OF THE WORKING CYCLES OF A MACHINE TOOL
    DE4030158A1 (en) * 1990-09-24 1992-03-26 Hau Simex Gmbh BELT GRINDING MACHINE
    DE4227315C2 (en) * 1991-08-19 1995-03-09 Grieshaber Masch Machine for grinding, short stroke honing and polishing the outer surface of workpieces
    WO1995021728A1 (en) * 1992-05-20 1995-08-17 Barton Kenneth A Ii Method and apparatus for correcting diametrical taper on a workpiece
    DE19515076C2 (en) * 1995-04-28 1998-02-05 Waldemar Loeser Device for the fine machining of surfaces
    DE29514753U1 (en) * 1995-09-14 1997-01-16 Supfina Grieshaber GmbH & Co., 42859 Remscheid Finishing device
    DE19534871C2 (en) * 1995-09-20 1997-07-31 Bauerrichter Hans Dieter Device for automated grinding of the edges of workpieces made of wood or plastic
    DE29819443U1 (en) * 1998-10-31 1998-12-24 Nagel Maschinen- und Werkzeugfabrik GmbH, 72622 Nürtingen Device for fine machining of essentially cylindrical workpiece surfaces
    DE19905139A1 (en) * 1999-02-09 2000-08-10 Nagel Masch Werkzeug Device for fine machining of essentially cylindrical workpiece surfaces

    Also Published As

    Publication number Publication date
    EP1396310A1 (en) 2004-03-10
    ATE312685T1 (en) 2005-12-15
    DE50301907D1 (en) 2006-01-19
    DE10241417A1 (en) 2004-03-18

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