WO2001060565A1 - Grinding method and grinding machine - Google Patents

Grinding method and grinding machine Download PDF

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Publication number
WO2001060565A1
WO2001060565A1 PCT/DE2000/004548 DE0004548W WO0160565A1 WO 2001060565 A1 WO2001060565 A1 WO 2001060565A1 DE 0004548 W DE0004548 W DE 0004548W WO 0160565 A1 WO0160565 A1 WO 0160565A1
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WO
WIPO (PCT)
Prior art keywords
workpiece
ground
deburring
grinding
mandrel
Prior art date
Application number
PCT/DE2000/004548
Other languages
German (de)
French (fr)
Inventor
Ernst Gruendler
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to US09/958,826 priority Critical patent/US20040067721A1/en
Priority to JP2001559645A priority patent/JP2003522652A/en
Priority to EP00991534A priority patent/EP1289712B1/en
Priority to DE50010720T priority patent/DE50010720D1/en
Publication of WO2001060565A1 publication Critical patent/WO2001060565A1/en

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Classifications

    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/065—Steady rests
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/14—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding conical surfaces, e.g. of centres
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/24—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding conical surfaces

Definitions

  • the invention relates to a method for cylindrical grinding of a workpiece, in which a rotating grinding wheel is fed against a surface of the workpiece to be ground, while at the same time the workpiece rotates about its longitudinal axis, the surface to be ground being delimited by an edge and into a neighboring surface
  • the invention also relates to a device for cylindrical grinding of a workpiece, with a grinding wheel and a receptacle for the workpiece to be ground
  • the object of the invention is then to improve the grinding method of the type mentioned in such a way that the deburring process can be omitted.
  • the object of the invention is then to provide a grinding device which makes it possible to dispense with the separate deburring process Advantages of the invention
  • the method according to the invention with the features of claim 1 has the advantage that the burr which arises when the grinding wheel is brought in against the surface to be ground is automatically eliminated. A separate deburring process is therefore no longer necessary
  • the deburring mandrel is printed on the neighboring surface with a force between 10 and 100 N, in particular with a force in the order of magnitude of approximately 50 N
  • a pneumatic cylinder is provided, the deburring pin with an adjustable ble
  • FIG. 1 is a schematic view of a grinding machine according to the invention.
  • FIG. 3 shows a view of the components shown in FIG. 2 along the direction of the arrow III in FIG. 2;
  • FIG. 5 shows a half section through the machined workpiece along the plane V of FIG. 3;
  • FIG. 6 shows a view corresponding to that of FIG. 2, a second embodiment of the invention
  • FIG. 7 is a view corresponding to that of FIG. 4, a section through the workpiece of FIG. 6;
  • the grinding machine contains a frame 10, in which a receptacle 12 for a workpiece 14 to be machined is arranged.
  • a drive 16 is provided with which the workpiece 14 can be set in rotation.
  • a grinding wheel 18 is provided, which can be set in rotation by means of an infeed drive 20 and can also be suitably advanced against a surface of the workpiece 14 to be ground.
  • the grinding machine described so far is of conventional construction, so that its construction need not be described in detail.
  • the grinding machine is additionally provided with a deburring mandrel 22, which is made of hard metal and can be pressed against the workpiece 14 to be machined by a pressure mechanism 24.
  • the pressure mechanism has a pneumatic cylinder 26 (see FIG. 2), the interior of which can be pressurized via two schematically illustrated pneumatic lines 28 to press the deburring mandrel 22 in the direction of arrow P of FIG. 2 against the workpiece 14.
  • the operation of the deburring mandrel is as follows: If the grinding wheel 18 is advanced against a surface 30 of the workpiece 14 to be ground in the direction of the arrow Z in FIG. 2, a burr 32 is formed (see FIGS. 3 and 4) made of material exists, which is displaced onto an adjoining adjacent surface 36 via an edge 34 which delimits the surface 30 of the workpiece to be machined.
  • FIG. 4 shows a section through a section of the workpiece that has just been machined by the grinding wheel 18 and now rotates towards the deburring dome 22.
  • the ridge 32 is located outside the surface 30 to be machined in the area of the adjacent surface 36 adjacent to the edge 34.
  • FIG. 5 shows a section through a section of the workpiece which, after contacting the end surface of the deburring mandrel 22, is again visible moved to the grinding wheel 18. It can clearly be seen that the ridge 32 has been pressed back onto the surface 30 to be machined, so that it is ground off the next time it comes into contact with the grinding wheel 18.
  • the pressing force of the deburring mandrel 22 can be selected depending on the respective requirements and the material to be processed. If the workpiece 14 is, for example, a valve needle for a fuel injection valve for Verre ⁇ Vietnamesemaschi ⁇ en, in which the surface to be machined has a diameter of a few millimeters, pressure forces of 50 N are sufficient.
  • the cycle described here of producing the burr by contact between the workpiece 14 and the grinding wheel 18, pressing the burr 32 back onto the surface 30 to be machined and grinding the burr is repeated until the grinding wheel fires, that is to say no material is removed and therefore no burr can arise.
  • the result of the grinding process described is a workpiece 14 with a ground surface 30 that has no burr without a separate deburring process being necessary.
  • the arrangement of the deburring mandrel 22 shown here relative to the grinding wheel 18 can be varied depending on the requirements. If several surfaces are ground simultaneously and in addition, for example, measuring tools monitor the grinding process, the deburring mandrel 22 can also be used in other positions relative to the grinding wheel
  • FIGS. 6 to 8 show a second embodiment of the grinding machine and the grinding method carried out with it.
  • the same reference numerals are used for the components already known from the first embodiment, and reference is made to the above explanations
  • a cylindrical outer surface of the workpiece 14 is ground here, so that the ridge 32 is formed on an adjacent surface 36 adjacent to the surface 30 to be machined, which extends perpendicular to the longitudinal axis of the workpiece 14 the burr 32 is pressed back by the deburring mandrel 22 onto the surface 30 to be ground, as can be seen by comparing FIGS. 7 and 8
  • the deburring mandrel 22 does not abut the workpiece 14 with its end face in the second embodiment, but with a conically shaped pressure face 38.
  • the longitudinal axis of the deburring mandrel 22 is not aligned perpendicular to the longitudinal axis of the workpiece 14, but extends obliquely This is particularly worth mentioning that the deburring mandrel 22 is not printed against the workpiece 14 in the direction in which the ridge 32 is to be printed back onto the surface to be machined, but in a direction in which the burr was expected to continue was printed inwards towards the longitudinal axis of the workpiece.
  • the ridge 32 is printed back onto the surface 30 to be ground by the obliquely positioned pressure surface 38 away from the longitudinal axis of the workpiece 1 4
  • Alignment of the deburring mandrel 22 is particularly advantageous if other components of the grinding machine have to be arranged in the area relative to FIG. 6 to the left of the deburring mandrel 22, with this arrangement the pressure mechanism 24 can then be arranged far outside of this area

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The invention relates to a method for the rotary grinding of a workpiece (14), whereby a rotating grinding disc (18) is brought against the surface (30) of the workpiece (14) to be ground, whilst the workpiece simultaneously turns about the longitudinal axis thereof. The surface to be ground (30) is bounded by an edge (34) and extends to become a neighbouring surface (36). The aim of the invention is to avoid the deburring process conventionally required. Said aim is achieved, whereby a deburring spike (22) is pressed on the neighbouring surface (36) during the grinding process, such that, on grinding the surface (30) to be ground, any burrs (32) are pushed back onto said surface to be ground. Also disclosed is a device for carrying out said method.

Description

Schleifverfahren und Schleifmaschine Grinding process and grinding machine
Stand der TechnikState of the art
Die Erfindung betrifft ein Verfahren zum Rundschleifen eines Werkstucks, bei dem eine sich drehende Schleifscheibe gegen eine zu schleifende Flache des Werkstücks zugestellt wird, wahrend sich gleichzeitig das Werkstuck um seine Langsachse dreht, wobei die zu schleifende Flache von einer Kante begrenzt wird und in eine Nachbarflache übergeht Die Erfindung betrifft auch eine Vorrichtung zum Rundschleifen eines Werkstucks, mit einer Schleifscheibe und einer Aufnahme für das zu schleifende WerkstuckThe invention relates to a method for cylindrical grinding of a workpiece, in which a rotating grinding wheel is fed against a surface of the workpiece to be ground, while at the same time the workpiece rotates about its longitudinal axis, the surface to be ground being delimited by an edge and into a neighboring surface The invention also relates to a device for cylindrical grinding of a workpiece, with a grinding wheel and a receptacle for the workpiece to be ground
Wahrend des Schleifvorgaπgs entsteht ein Grat, der von der zu schleifenden Fläche ausgeht und sich über die Kante hinaus zur angrenzenden Nachbarfläche des Werkstücks hin erstreckt Wenn dieser Grat für die spatere Funktion des fertig bearbeiteten Werkstücks störend ist, muß er durch einen separaten Entgratvorgang entfernt werdenDuring the grinding process, a burr arises which starts from the surface to be ground and extends beyond the edge to the adjacent adjacent surface of the workpiece. If this burr is disruptive to the later function of the finished workpiece, it must be removed by a separate deburring process
Die Aufgabe der Erfindung besteht dann, das Schleifverfahren der eingangs genannten Art dahingehend zu verbessern daß der Entgratvorgang entfallen kann. Die Aufgabe der Erfindung besteht weiterhin dann eine Vorrichtung zum Schleifen zu schaffen, die es ermöglicht, auf den separaten Entgratvorgang zu verzichten Vorteile der ErfindungThe object of the invention is then to improve the grinding method of the type mentioned in such a way that the deburring process can be omitted. The object of the invention is then to provide a grinding device which makes it possible to dispense with the separate deburring process Advantages of the invention
Das erfiπduπgsgemaße Verfahren mit den Merkmalen des Patentanspruchs 1 hat den Vorteil, daß der beim Zustellen der Schleifscheibe gegen die zu schleifende Flache entstehende Grat automatisch beseitigt wird Ein separater Entgratvorgang ist somit nicht mehr notwendigThe method according to the invention with the features of claim 1 has the advantage that the burr which arises when the grinding wheel is brought in against the surface to be ground is automatically eliminated. A separate deburring process is therefore no longer necessary
Gemäß einer bevorzugten Ausfuhrungsform der Erfindung ist vorgesehen, daß der Entgratdorn so eingestellt wird, daß er über die Nachbarflache und die Kante zur zu schleifenden Flache hin nach außen übersteht Bei dieser Ausrichtung des Eπtgratdornes wird gewährleistet, daß der beim Schleifen entstehende Grat wieder vollständig auf die zu schleifende Flache zuruckgedruckt werden kannAccording to a preferred embodiment of the invention it is provided that the deburring mandrel is set so that it protrudes outward beyond the neighboring surface and the edge of the surface to be ground surface to be sanded can be printed back
Vorzugsweise ist vorgesehen, daß der Entgratdorn mit einer Kraft zwischen 10 und 100 N auf die Nachbarflache gedruckt wird, insbesondere mit einer Kraft in der Größenordnung von etwa 50 N Die genannten Kräfte stellen einen guten Kompromiß dar zwischen zuverlässigem Zuruckdrucken des Grats einerseits und geringen Reibungskräften andererseitsIt is preferably provided that the deburring mandrel is printed on the neighboring surface with a force between 10 and 100 N, in particular with a force in the order of magnitude of approximately 50 N
Die erfmdungsgemaße Vorrichtung mit den Merkmalen des Patentanspruchs 6 bietet im wesentlichen dieselben Vorteile wie hinsichtlich des Verfahrens gemäß Anspruch 1 erläutert Da der Grat mittels der erfindungsgemaßen Schleifmaschine kontinuierlich wieder abgeschliffen wird, entsteht ohne einen sich an den Schleifvorgang anschließenden separaten Bearbeitungsschritt ein gratfreies geschliffenes WerkstuckThe device according to the invention with the features of patent claim 6 essentially offers the same advantages as explained with regard to the method according to claim 1
Gemäß einer bevorzugten Ausfuhrungsform der Erfindung ist ein Pneumatikzylinder vorgesehen, der den Entgratdorπ mit einer einstell barenAccording to a preferred embodiment of the invention, a pneumatic cylinder is provided, the deburring pin with an adjustable ble
Kraft gegen das zu bearbeitende Werkstuck drucken kann Auf diese Weise kaππ mit geringem Aufwand die Koπtaktkraft zwischen dem Werkstück und dem Entgratdorπ an die jeweiligen Anforderungen eingestellt werden.Can print force against the workpiece to be machined this way The contact force between the workpiece and the deburring mandrel can be adjusted to the respective requirements with little effort.
Zeichnungendrawings
Die Erfindung wird nachfolgend unter Bezugnahme auf verschiedene Ausführungsbeispiele beschrieben, die in den beigefügten Zeichnungen dargestellt sind. In diesen zeigen:The invention is described below with reference to various exemplary embodiments which are illustrated in the accompanying drawings. In these show:
- Fig. 1 in einer schematischen Ansicht eine erfindungsgemäße Schleifmaschine;- Figure 1 is a schematic view of a grinding machine according to the invention.
- Fig. 2 in vergrößertem Maßstab einen Ausschnitt von Fig. 1 ;- Fig. 2 on an enlarged scale a section of Fig. 1;
- Fig. 3 eine Ansicht der in Fig. 2 gezeigten Bauteile entlang der Richtung des Pfeils III von Fig. 2;3 shows a view of the components shown in FIG. 2 along the direction of the arrow III in FIG. 2;
- Fig. 4 einen Halbschπitt durch das bearbeitete Werkstück entlang der Ebene IV von Fig. 3;4 shows a half section through the machined workpiece along plane IV of FIG. 3;
- Fig. 5 einen Halbschnitt durch das bearbeitete Werkstück entlang der Ebene V von Fig. 3;5 shows a half section through the machined workpiece along the plane V of FIG. 3;
- Fig. 6 in einer Ansicht entsprechend derjenigen von Fig. 2 eine zweite Ausführungsform der Erfindung;6 shows a view corresponding to that of FIG. 2, a second embodiment of the invention;
- Fig. 7 in einer Ansicht entsprechend derjenigen von Fig. 4 einen Schnitt durch das Werkstück von Fig. 6; und7 is a view corresponding to that of FIG. 4, a section through the workpiece of FIG. 6; and
- Fig. 8 in einer Ansicht entsprechend derjenigen von Fig. 5 einen weiteren Schnitt durch das Werkstück von Fig. 6. Beschreibung der Ausführungsbeispieie8 shows, in a view corresponding to that of FIG. 5, a further section through the workpiece of FIG. 6. Description of the execution examples
In Fig. 1 ist eine Maschine gemäß einer ersten Ausführungsform der Erfindung gezeigt. Die Schleifmaschine enthält einen Rahmen 10, in welchem eine Aufnahme 12 für ein zu bearbeitendes Werkstück 14 angeordnet ist. Es ist ein Antrieb 16 vorgesehen, mit dem das Werkstück 14 in Drehung versetzt werden kann. Weiterhin ist eine Schleifscheibe 18 vorgesehen, die mittels eines Zustellaπtriebes 20 sowohl in Drehung versetzt werden kann als auch geeignet gegen eine zu schleifende Fläche des Werkstücks 14 zugestellt werden kann. Die bis hierhin beschriebene Schleifmaschine ist von herkömmlichem Aufbau, so daß ihre Konstruktion nicht im Detail beschrieben werden braucht.1 shows a machine according to a first embodiment of the invention. The grinding machine contains a frame 10, in which a receptacle 12 for a workpiece 14 to be machined is arranged. A drive 16 is provided with which the workpiece 14 can be set in rotation. Furthermore, a grinding wheel 18 is provided, which can be set in rotation by means of an infeed drive 20 and can also be suitably advanced against a surface of the workpiece 14 to be ground. The grinding machine described so far is of conventional construction, so that its construction need not be described in detail.
Die Schleifmaschine ist zusätzlich mit einem Entgratdorn 22 versehen, der aus Hartmetall besteht und von einem Aπdruckmechaπismus 24 gegen das zu bearbeitende Werkstück 14 gedrückt werden kann. Der Andruckmechanismus weist einen Pπeumatikzylinder 26 (siehe Fig. 2) auf, dessen Inπeπraurn über zwei schematisch dargestellte Pneumatikleitungeπ 28 mit Druck beaufschlagt werden kann, um den Eπtgratdorn 22 in der Richtung des Pfeils P von Fig. 2 gegen das Werkstück 14 zu drücken.The grinding machine is additionally provided with a deburring mandrel 22, which is made of hard metal and can be pressed against the workpiece 14 to be machined by a pressure mechanism 24. The pressure mechanism has a pneumatic cylinder 26 (see FIG. 2), the interior of which can be pressurized via two schematically illustrated pneumatic lines 28 to press the deburring mandrel 22 in the direction of arrow P of FIG. 2 against the workpiece 14.
Die Wirkungsweise des Eπtgratdorns ist die folgende: Wenn die Schleifscheibe 18 gegen eine zu schleifende Fläche 30 des Werkstücks 14 in der Richtung des Pfeils Z von Fig. 2 zugestellt wird, entsteht ein Grat 32 (siehe die Figuren 3 und 4), der aus Material besteht, das über eine Kante 34, welche die zu bearbeitende Fläche 30 des Werkstückes begrenzt, auf eine sich anschließende Nachbarfläche 36 verdrängt wird.The operation of the deburring mandrel is as follows: If the grinding wheel 18 is advanced against a surface 30 of the workpiece 14 to be ground in the direction of the arrow Z in FIG. 2, a burr 32 is formed (see FIGS. 3 and 4) made of material exists, which is displaced onto an adjoining adjacent surface 36 via an edge 34 which delimits the surface 30 of the workpiece to be machined.
Da sich das Werkstück 14 dreht, gelangt der Grat zum Eπtgratdorn 22, der bei der gezeigten Ausführuπgsform etwa gegenüber der Schleifscheibe 18 angeordnet ist. Dort wird der Grat von der Stirnfläche des Eπtgratdorπs 22, die als ebeπe Aπdruckfläche 38 ausgebildet ist, sich senkrecht zur Längsachse des Entgratdornes erstreckt und über die Kante 34 hinausragt, auf die zu schleifende Fläche 30 zurückgedrückt. Dies ist deutlich durch Vergleich der Figuren 4 und 5 zu sehen. Fig. 4 zeigt einen Schnitt durch einen Abschnitt des Werkstückes, der gerade von der Schleifscheibe 18 bearbeitet wurde und sich nun hin zum Entgratdom 22 dreht. Der Grat 32 befindet sich außerhalb der zu bearbeitenden Fläche 30 im Bereich der an die Kante 34 angrenzenden Nachbarfläche 36. In Fig. 5 ist ein Schnitt durch einen Abschnitt des Werkstückes zu sehen, der sich nach der Berührung mit der Stirnfläche des Entgratdornes 22 wieder hin zur Schleifscheibe 18 bewegt. Es ist deutlich zu sehen, daß der Grat 32 zurück auf die zu bearbeitende Fläche 30 gedrückt wurde, so daß er beim nächsten Kontakt mit der Schleifscheibe 18 abgeschliffen wird.Since the workpiece 14 rotates, the burr reaches the deburring mandrel 22, which is arranged approximately opposite the grinding wheel 18 in the embodiment shown. There the ridge is from the end face of the Eπtgratdorπs 22, which as ebeπe pressure surface 38 is formed, extends perpendicular to the longitudinal axis of the deburring mandrel and protrudes beyond the edge 34, pressed back onto the surface 30 to be ground. This can be seen clearly by comparing FIGS. 4 and 5. FIG. 4 shows a section through a section of the workpiece that has just been machined by the grinding wheel 18 and now rotates towards the deburring dome 22. The ridge 32 is located outside the surface 30 to be machined in the area of the adjacent surface 36 adjacent to the edge 34. FIG. 5 shows a section through a section of the workpiece which, after contacting the end surface of the deburring mandrel 22, is again visible moved to the grinding wheel 18. It can clearly be seen that the ridge 32 has been pressed back onto the surface 30 to be machined, so that it is ground off the next time it comes into contact with the grinding wheel 18.
Die Andruckkraft des Entgratdorns 22 kann in Abhängigkeit von den jeweiligen Anforderungen und dem zu bearbeitendem Material gewählt werden. Wenn das Werkstück 14 beispielsweise eine Ventilnadel für ein Kraftstoff-Einspritzventil für Verbreπnungskraftmaschiπen ist, bei der die zu bearbeitende Fläche einen Durchmesser von wenigen Millimetern hat, sind Andruckkräfte von 50 N ausreichend.The pressing force of the deburring mandrel 22 can be selected depending on the respective requirements and the material to be processed. If the workpiece 14 is, for example, a valve needle for a fuel injection valve for Verreπnungskraftmaschiπen, in which the surface to be machined has a diameter of a few millimeters, pressure forces of 50 N are sufficient.
Der hier beschriebene Kreislauf des Erzeugens des Grates durch Berührung zwischen dem Werkstück 14 und der Schleifscheibe 18, des Zurückdrückens des Grates 32 auf die zu bearbeitende Fläche 30 und des Abschleifens des Grates wiederholt sich so lange, bis die Schleifscheibe ausfeuert, also keinerlei Material mehr abgetragen wird und folglich auch kein Grat entstehen kann. Das Ergebnis des beschriebenen Schleifvorganges ist ein Werkstück 14 mit geschliffener Fläche 30, die keinen Grat aufweist, ohne daß ein separater Entgratvorgang erforderlich war. Die hier gezeigte Anordnung des Entgratdorns 22 relativ zur Schleifscheibe 18 kann je nach den Anforderungen variiert werden Wenn mehrere Flachen gleichzeitig geschliffen werden und zusätzlich beispielsweise Meßwerkzeuge den Schleifvorgang überwachen kann der Entgratdorπ 22 auch in anderen Stellungen relativ zur Schleifscheibe eingesetzt werdenThe cycle described here of producing the burr by contact between the workpiece 14 and the grinding wheel 18, pressing the burr 32 back onto the surface 30 to be machined and grinding the burr is repeated until the grinding wheel fires, that is to say no material is removed and therefore no burr can arise. The result of the grinding process described is a workpiece 14 with a ground surface 30 that has no burr without a separate deburring process being necessary. The arrangement of the deburring mandrel 22 shown here relative to the grinding wheel 18 can be varied depending on the requirements. If several surfaces are ground simultaneously and in addition, for example, measuring tools monitor the grinding process, the deburring mandrel 22 can also be used in other positions relative to the grinding wheel
In den Figuren 6 bis 8 ist eine zweite Ausfuhrungsform der Schleifmaschine sowie des damit ausgeführten Schleifverfahrens gezeigt Für die von der ersten Ausfuhrungsform bereits bekannten Bauteile werden dieselben Bezugszeicheπ verwendet, und es wird auf die obigen Erläuterungen verwiesenFIGS. 6 to 8 show a second embodiment of the grinding machine and the grinding method carried out with it. The same reference numerals are used for the components already known from the first embodiment, and reference is made to the above explanations
Der wesentlichste Unterschied zur ersten Ausfuhrungsform besteht dann daß hier eine zylindrische Außenfläche des Werkstucks 14 geschliffen wird, so daß der Grat 32 auf einer an die zu bearbeitende Flache 30 angrenzenden Nachbarflache 36 entsteht, die sich senkrecht zur Längsachse des Werkstucks 14 erstreckt Von dieser Nachbarflache 36 wird der Grat 32 vom Entgratdorn 22 wieder auf die zu schleifende Flache 30 zuruckgedruckt, wie durch Vergleich der Figuren 7 und 8 zu sehen istThe most significant difference to the first embodiment is that a cylindrical outer surface of the workpiece 14 is ground here, so that the ridge 32 is formed on an adjacent surface 36 adjacent to the surface 30 to be machined, which extends perpendicular to the longitudinal axis of the workpiece 14 the burr 32 is pressed back by the deburring mandrel 22 onto the surface 30 to be ground, as can be seen by comparing FIGS. 7 and 8
Im Unterschied zur ersten Ausfuhrungsform hegt der Entgratdorπ 22 bei der zweiten Ausfuhruπgsform nicht mit seiner Stirnflache am Werkstuck 14 an, sondern mit einer konisch ausgebildeten Aπdruckflache 38 Außerdem ist die Langsachse des Entgratdorns 22 nicht senkrecht zur Längsachse des Werkstucks 14 ausgerichtet, sondern erstreckt sich schräg zu dieser Besonders erwähnenswert ist, daß der Entgratdorn 22 nicht etwa in der Richtung gegen das Werkstuck 14 gedruckt wird, in die der Grat 32 auf die zu bearbeitende Flache zuruckgedruckt werden soll, sondern in einer Richtung, in der man erwarten wurde, daß der Grat weiter zur Langsachse des Werkstucks hin nach innen gedruckt wurde Tatsächlich wird aber der Grat 32 durch die schräg angestellte Andruckflache 38 von der Langsachse des Werkstucks 1 4 weg zurück auf die zu schleifende Flache 30 gedruckt Die hier gezeigte Ausπchtung des Entgratdorns 22 ist besonders vorteilhaft wenn in dem bezuglich Fig 6 links des Entgratdorns 22 egenden Bereich andere Bauteile der Schleifmaschine angeordnet werde müssen, bei dieser Anordnung kann dann der Aπdruckmechanismus 24 weit außerhalb dieses Bereichs angeordnet werden In contrast to the first embodiment, the deburring mandrel 22 does not abut the workpiece 14 with its end face in the second embodiment, but with a conically shaped pressure face 38. In addition, the longitudinal axis of the deburring mandrel 22 is not aligned perpendicular to the longitudinal axis of the workpiece 14, but extends obliquely This is particularly worth mentioning that the deburring mandrel 22 is not printed against the workpiece 14 in the direction in which the ridge 32 is to be printed back onto the surface to be machined, but in a direction in which the burr was expected to continue was printed inwards towards the longitudinal axis of the workpiece. In fact, however, the ridge 32 is printed back onto the surface 30 to be ground by the obliquely positioned pressure surface 38 away from the longitudinal axis of the workpiece 1 4 Alignment of the deburring mandrel 22 is particularly advantageous if other components of the grinding machine have to be arranged in the area relative to FIG. 6 to the left of the deburring mandrel 22, with this arrangement the pressure mechanism 24 can then be arranged far outside of this area

Claims

Patentansprüche claims
1. Verfahren zum Rundschleifen eines Werkstucks (14), bei dem eine sich drehende Scnleifscheibe (18) gegen eine zu schleifende Flache (30) des Werkstucks zugestellt wird, wahrend sich gleichzeitig das Werkstuck um seine Längsachse dreht, wobei die zu schleifende Flache von einer Kante1. A method for cylindrical grinding of a workpiece (14), in which a rotating grinding wheel (18) is advanced against a surface (30) of the workpiece to be ground, while the workpiece simultaneously rotates about its longitudinal axis, the surface to be ground being moved by one edge
(34) begrenzt wird und in eine Nachbarfläche (36) ubergent, dadurch gekennzeichnet, daß ein Entgratdorn (22) wahrend des Schleifens auf die Nachbarflache (36) gedrückt wird, so daß ein beim Schleifen der zu schleifenden Fläche entstehender Grat (32) auf diese zuruckgedruckt wird.(34) is delimited and superimposed on a neighboring surface (36), characterized in that a deburring mandrel (22) is pressed onto the neighboring surface (36) during grinding, so that a burr (32) which arises when grinding the surface to be ground this is printed back.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß der Eπtgratdorn (22) so eingestellt wird, daß er über die Nachbarflache (36) und die Kante (34) zur zu schleifenden Flache (30) hin nach außen übersteht2. The method according to claim 1, characterized in that the Eπtgratdorn (22) is set so that it over the adjacent surface (36) and the edge (34) to the surface to be ground (30) protrudes outwards
3 Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß der Eπtgratdorn (22) so eingestellt wird, daß er mit etwa seinem halben Durchmesser über die Nachbarflache (36) übersteht3 The method according to claim 2, characterized in that the Eπtgratdorn (22) is set so that it protrudes with about half its diameter over the adjacent surface (36)
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Entgratdorπ (22) mit einer Kraft zwischen 10 und 100 N auf die4. The method according to any one of claims 1 to 3, characterized in that the deburring pin (22) with a force between 10 and 100 N on the
Nachbarflache (36) gedrückt wird.Neighboring surface (36) is pressed.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß der Entgratdorπ (22) mit einer Kraft von etwa 50 N auf die Nachbarflache (36) gedrückt wird. 5. The method according to claim 4, characterized in that the deburring pin (22) is pressed with a force of about 50 N on the adjacent surface (36).
6. Vorrichtung zum Rundschleifen eines Werkstücks 14, mit einer Schleifscheibe (18) und einer Aufnahme (12) für das zu schleifende Werkstück (14), dadurch gekennzeichnet, daß ein Entgratdorn (22) vorgesehen ist, der auf eine an die zu schleifende Fläche (30) des Werkstücks angrenzende Nachbarfläche (36) gedrückt werden kann.6. Device for cylindrical grinding of a workpiece 14, with a grinding wheel (18) and a receptacle (12) for the workpiece to be ground (14), characterized in that a deburring mandrel (22) is provided which on a surface to be ground (30) of the workpiece adjacent adjacent surface (36) can be pressed.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Entgratdorn (22) eine ebene Stirnfläche aufweist.7. The device according to claim 6, characterized in that the deburring mandrel (22) has a flat end face.
8. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Entgratdorn (22) eine kegelige Aπdruckfläche (38) aufweist.8. The device according to claim 6, characterized in that the deburring mandrel (22) has a conical Aπdruckfläche (38).
9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß der Entgratdorn (22) so angeordnet ist, daß sich seine Längsachse etwa im rechten Winkel zur Längsachse des zu bearbeitenden9. Device according to one of claims 6 to 8, characterized in that the deburring mandrel (22) is arranged so that its longitudinal axis is approximately at right angles to the longitudinal axis of the to be machined
Werkstückes (14) erstreckt.Workpiece (14) extends.
10. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß der Entgratdorn (22) so angeordnet ist, daß sich seine Längsachse in einem von 90° verschiedenen Winkel relativ zur Längsachse des zu bearbeitenden Werkstückes (14) erstreckt.10. Device according to one of claims 6 to 8, characterized in that the deburring mandrel (22) is arranged so that its longitudinal axis extends at an angle different from 90 ° relative to the longitudinal axis of the workpiece (14) to be machined.
1 1. Vorrichtung nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, daß ein Pneumatikzylinder (26) vorgesehen ist, der den Entgratdorn (22) mit einer einstellbaren Kraft gegen das zu bearbeitende Werkstück (14) drücken kann. 1 1. Device according to one of claims 6 to 10, characterized in that a pneumatic cylinder (26) is provided which can press the deburring mandrel (22) with an adjustable force against the workpiece (14) to be machined.
PCT/DE2000/004548 2000-02-15 2000-12-20 Grinding method and grinding machine WO2001060565A1 (en)

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US09/958,826 US20040067721A1 (en) 2000-02-15 2000-12-20 Grinding method and grinding machine
JP2001559645A JP2003522652A (en) 2000-02-15 2000-12-20 Grinding method and grinder
EP00991534A EP1289712B1 (en) 2000-02-15 2000-12-20 Grinding method and grinding machine
DE50010720T DE50010720D1 (en) 2000-02-15 2000-12-20 GRINDING PROCESS AND GRINDING MACHINE

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DE10006559A DE10006559A1 (en) 2000-02-15 2000-02-15 Grinding process and grinding machine
DE10006559.7 2000-02-15

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EP1475186A1 (en) * 2003-05-07 2004-11-10 HTT Hauser Tripet Tschudin AG Method and apparatus for abrasively working surfaces of revolution
EP1475185A1 (en) * 2003-05-07 2004-11-10 HTT Hauser Tripet Tschudin AG Method and apparatus for abrasively working surfaces of revolution
US7021990B2 (en) 2003-08-19 2006-04-04 Htt Hauser Tripet Tschudin Ag Method and apparatus for circular grinding
US7029366B2 (en) 2004-08-17 2006-04-18 Htt Hauser Tripet Tschudin Ag Method and apparatus for abrasive circular machining

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Publication number Priority date Publication date Assignee Title
EP1475186A1 (en) * 2003-05-07 2004-11-10 HTT Hauser Tripet Tschudin AG Method and apparatus for abrasively working surfaces of revolution
EP1475185A1 (en) * 2003-05-07 2004-11-10 HTT Hauser Tripet Tschudin AG Method and apparatus for abrasively working surfaces of revolution
US7021990B2 (en) 2003-08-19 2006-04-04 Htt Hauser Tripet Tschudin Ag Method and apparatus for circular grinding
US7029366B2 (en) 2004-08-17 2006-04-18 Htt Hauser Tripet Tschudin Ag Method and apparatus for abrasive circular machining

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DE10006559A1 (en) 2001-08-23
EP1289712A1 (en) 2003-03-12
DE50010720D1 (en) 2005-08-18
JP2003522652A (en) 2003-07-29
US20040067721A1 (en) 2004-04-08
EP1289712B1 (en) 2005-07-13

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