EP0463427A2 - Honing machine - Google Patents

Honing machine Download PDF

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Publication number
EP0463427A2
EP0463427A2 EP91109259A EP91109259A EP0463427A2 EP 0463427 A2 EP0463427 A2 EP 0463427A2 EP 91109259 A EP91109259 A EP 91109259A EP 91109259 A EP91109259 A EP 91109259A EP 0463427 A2 EP0463427 A2 EP 0463427A2
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EP
European Patent Office
Prior art keywords
honing
bores
measuring
spindles
station according
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Granted
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EP91109259A
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German (de)
French (fr)
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EP0463427A3 (en
EP0463427B1 (en
Inventor
Wolf Dipl.-Ing. Nagel
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Nagel Maschinen und Werkzeugfabrik GmbH
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Nagel Maschinen und Werkzeugfabrik 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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes

Definitions

  • the invention relates to a honing machine or a honing station.
  • honing stations with two honing spindles arranged parallel to one another.
  • the distance between the two honing spindles corresponds to twice the distance between two cylinder bores.
  • the cylinder block is placed at a certain point under the honing spindles and the honing station now first processes the first and third cylinder bores simultaneously, for example.
  • both honing spindles are laterally shifted laterally by the distance between two cylinder bores, so that the second and fourth cylinder bores are now arranged under the honing spindles.
  • the second and fourth cylinder bores are then machined in this position.
  • Both honing spindles are thus constantly shifted back and forth between two extreme positions, whereby three such positions may also be present in a six-cylinder engine.
  • an engine block is to be machined in which the distance of the first bore from a reference point, for example the end face of the engine block, is different, the two extreme positions between which the honing spindles are moved must be changed. If the new engine block also has other mutual distances between the individual cylinder bores, the distance between the two honing spindles must also be changed. This requires manual intervention by an operator, i.e. a conversion of the entire honing station. If engine blocks of different dimensions are to be machined in rapid succession at a honing station or honing machine, this is no longer possible with a manual intervention.
  • the invention has for its object to provide a honing station that enables the machining of engine blocks with different bore distances and basic distances from a reference surface without manual intervention.
  • the invention proposes a honing station with the features of claim 1. Further training is the subject of subclaims.
  • the honing station proposed by the invention, it is possible not only to switch between machining a first and a second pair of cylinder bores as before, but also to adjust the position at which the first and second pairs are arranged.
  • the two honing spindles are always moved back and forth together between the two possible machining operations.
  • the mutual spacing of the two spindles is adjusted with the second adjusting device and, if necessary, the positions between which the first adjusting device pushes the two honing spindles back and forth are changed.
  • the two adjusting devices can be actuated independently of one another.
  • the second adjustment device only has to take action if a changeover to another type of engine block is required.
  • the honing station has a control device for controlling the adjustment drives or adjustment devices.
  • This control device can either be operated by an operator who, as soon as a new type of engine block arrives, switches over to a different program.
  • the honing station it is also possible for the honing station to have an identification device for the engine block and to switch itself over to this when a type of engine block is detected.
  • the adjusting device can be operated is for the adjusting drive to have a stepper motor. The device can then be set to a new dimension by emitting a specific signal sequence.
  • the honing station has two stops which cooperate with limit switches for switching off the first adjustment drive and which are designed to be adjustable. These stops are used to define the locations for the first and second pair of holes to be honed. When switching to another engine block these stops can be moved. Of course, it does not have to be physical attacks. It is also possible to design these stops by means of light barriers or by counting a displacement sensor.
  • the invention therefore proposes to design a measuring station for the simultaneous measurement of two bores in practically the same way as the honing station itself, i.e. to provide the two measuring devices with adjusting devices, of which one adjusting device moves both measuring devices together, while the second can only change the mutual distance. Details of these adjustment devices can be as for the honing station itself.
  • such a honing station and / or such a measuring station can be part of a honing machine for processing workpieces with several bores transported on a transfer line.
  • the honing machine has two honing stations, of which, for example, the first performs pre-honing and the second carries out finish honing.
  • a continuous rail can be used to move both honing stations or the honing station and the measuring station.
  • the honing machine shown in a highly simplified form in FIG. 1 contains a horizontal rail 2 on two supports 1.
  • a headstock 4 is fixed, in which an only indicated honing spindle 5 is mounted.
  • the honing spindle 5 can be rotated by a drive, not shown, and set in an up and down movement.
  • the honing spindle can therefore carry out the usual movement that occurs during honing.
  • the headstock 4 is known in the prior art.
  • the headstock 4 is firmly connected to the carriage 3, so that a displacement of the carriage 3 on the rail 2 also leads to a displacement of the headstock 4.
  • a second headstock 6 is slidably guided in the longitudinal direction of the carriage 3 and the rail 2.
  • This second headstock 6 also contains one Honing spindle 7, which corresponds to the honing spindle 5.
  • an adjusting device 8 is provided which has a drive motor 9. The adjusting device 8 serves to move the second headstock 6 on the carriage 3 relative to the headstock 4, so that the distance between the two headstocks 4, 6 from one another and thus the distance between the two honing spindles 5, 7 can be changed.
  • the axes of the two honing spindles are represented by the dash-dotted lines 10 in FIG. 1.
  • a first adjustment drive 11 which also has a drive motor 12, is used to move the slide on the rail 2.
  • the actuation of the drive motor 12 causes the two headstocks 4, 6 to be displaced along the rail 2 while maintaining their mutual distance.
  • the honing station is arranged on a schematically indicated transfer line 13. Individual engine blocks are brought up in cycles on transfer line 13 and placed under the honing spindles.
  • the transfer line 13 is always clocked at a fixed distance, so that after each clock cycle an engine block 14 is in the position shown below the honing station.
  • the first and third bores are then honed, then the honing spindles are withdrawn and, with the aid of the drive motor 12, both headstocks are simultaneously moved into a position which corresponds to the second pair of cylinder bores.
  • both The spinning sticks are moved back together to the starting position and a new motor block 14 is brought about on the transfer line 13.
  • FIGS. 2 and 3 show the two headstocks 6, 4 with the indicated spindles 7 and 5.
  • the adjustment drive 8 is indicated, which can be used to change the mutual distance between the two headstocks 6, 4.
  • the engine block 14 contains four parallel, equidistant cylinder bores 16.
  • the honing station is moved into its one end position by the adjusting drive 11, which corresponds to the first and third cylinder bores 16 calculated from the left.
  • the adjusting drive 11 moves the two headstocks 4, 6 into the right end position, which is shown in FIG. 3, while maintaining their mutual distance.
  • the second pair of holes 16 can now be machined here.
  • the adjusting drive 11 shifts the arrangement back into the position shown in FIG. 2, so that the next engine block 14 delivered on the transfer line 13 can be machined in the same way.
  • the engine blocks 14 are always placed in the same place by the transfer line 13.
  • the adjustment drive 11 thus serves to move the two headstocks back and forth between two end positions. These end positions can, for example, by stops and with limit switches interacting with the stops are defined.
  • the arrow 18 with the two tips in FIGS. 2 and 3 shows the two positions between which the drive 11 moves the two spindles together when machining one type of engine block 14 with respect to the fixed reference line 15.
  • FIG. 4 If an engine block now approaches on the transfer line, which has different mutual distances of the cylinder bores from one another and / or a different distance of the first bore from the end face, the situation shown in FIG. 4 occurs.
  • the engine block 14 'shown in Figure 4 has larger distances between the cylinder bores.
  • the adjusting device 8 now comes into effect, which changes the mutual distance between the two headstocks 6, 4 and thus the two honing spindles 5 and 7 from one another.
  • the distance is therefore increased. If several motor blocks of size 14 'are now machined, the displacement movement between the two pairs of bores 16 is again brought about by the adjustment drive 11, while the adjustment drive 8 remains inoperative until an engine block with a different bore spacing is brought up again.
  • the arrow 19 indicates between which positions the drive 8 the distance between the two honing spindles 5 and 7 changed from one another between machining two types of engine blocks 14.
  • the control of the two adjustment drives 11, 8 can take place, for example, via a control device which has a control panel. There, under certain circumstances, the distances can be entered directly by an operator in exact dimensions. It is of course also conceivable that the control device has an automatic reading device that can read markings on the engine block and can then adjust itself to the new engine block based on stored information. What has been described with reference to FIGS. 1-4 for honing processing can also be used according to the invention in the same way for a measuring station in which instead of the two honing spindles 5, 7 there are two measuring devices which can be lowered into the bores in order to close them measure up. Such an adjustment option for processing different engine block types is also useful here.
  • the invention also proposes a method according to one or both of claims 14 and 15.

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  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

A honing machine contains two honing spindles arranged parallel to one another. The honing spindles serve to machine two cylinder bores of the engine block. To make the honing station suitable for machining engine blocks of different size, an adjusting device is provided which can change the mutual distance between the honing spindles.

Description

Die Erfindung betrifft eine Honmaschine bzw. eine Honstation.The invention relates to a honing machine or a honing station.

Zur Honbearbeitung der Zylinderbohrungen von Motorblöcken ist es bekannt, Honstationen mit zwei parallel zueinander angeordneten Honspindeln zu verwenden. Der Abstand der beiden Honspindeln entspricht dabei dem doppelten Abstand zweier Zylinderbohrungen. Der Zylinderblock wird an einer bestimmten Stelle unter den Honspindeln abgesetzt und die Honstation bearbeitet nun zunächst beispielsweise die erste und dritte Zylinderbohrung gleichzeitig. Anschließend werden beiden Honspindeln gleichzeitig um den Abstand zweier Zylinderbohrungen seitlich verschoben, so daß jetzt die zweite und vierte Zylinderbohrung unter den Honspindeln angeordnet ist. In dieser Stellung werden dann die zweite und vierte Zylinderbohrung bearbeitet.For honing the cylinder bores of engine blocks, it is known to use honing stations with two honing spindles arranged parallel to one another. The distance between the two honing spindles corresponds to twice the distance between two cylinder bores. The cylinder block is placed at a certain point under the honing spindles and the honing station now first processes the first and third cylinder bores simultaneously, for example. Then both honing spindles are laterally shifted laterally by the distance between two cylinder bores, so that the second and fourth cylinder bores are now arranged under the honing spindles. The second and fourth cylinder bores are then machined in this position.

Beide Honspindeln werden also ständig zwischen zwei Extrempositionen hin und her verschoben, wobei bei einem Reihensechszylindermotor ggf. auch drei derartige Positionen vorhanden sein können.Both honing spindles are thus constantly shifted back and forth between two extreme positions, whereby three such positions may also be present in a six-cylinder engine.

Soll nun ein Motorblock bearbeitet werden, bei dem der Abstand der ersten Bohrung von einer Bezugsstelle, beispielsweise der Stirnfläche des Motorblocks, anders ist, so müssen die beiden Extrempositionen, zwischen denen die Honspindeln verschoben werden, geändert werden. Hat nun der neue Motorblock zusätzlich noch andere gegenseitige Abstände zwischen den einzelnen Zylinderbohrungen, so muß auch der Abstand zwischen den beiden Honspindeln verändert werden. Dies bedarf eines manuellen Eingriffs durch eine Bedienperson, d.h. eine Umrüstung der gesamten Honstation. Wenn nun an einer Honstation oder Honmaschine in schneller Folge Motorblocks unterschiedlicher Abmessungen bearbeitet werden sollen, ist dies mit einem manuellen Eingriff nicht mehr möglich.If an engine block is to be machined in which the distance of the first bore from a reference point, for example the end face of the engine block, is different, the two extreme positions between which the honing spindles are moved must be changed. If the new engine block also has other mutual distances between the individual cylinder bores, the distance between the two honing spindles must also be changed. This requires manual intervention by an operator, i.e. a conversion of the entire honing station. If engine blocks of different dimensions are to be machined in rapid succession at a honing station or honing machine, this is no longer possible with a manual intervention.

Der Erfindung liegt die Aufgabe zugrunde, eine Honstation zu schaffen, die ohne manuellen Eingriff die Bearbeitung von Motorblocks mit unterschiedlichen Bohrungsabständen und Grundabständen von einer Bezugsfläche ermöglicht.The invention has for its object to provide a honing station that enables the machining of engine blocks with different bore distances and basic distances from a reference surface without manual intervention.

Zur Lösung dieser Aufgabe schlägt die Erfindung eine Honstation mit den Merkmalen des Anspruchs 1 vor. Weiterbildungen sind Gegenstand von Unteransprüchen.To achieve this object, the invention proposes a honing station with the features of claim 1. Further training is the subject of subclaims.

Mit der von der Erfindung vorgeschlagenen Honstation ist es möglich, nicht nur wie bisher zwischen der Bearbeitung eines ersten und zweiten Paares von Zylinderbohrungen umzuschalten, sondern auch die Stelle, an der das erste bzw. zweite Paar angeordnet ist, zu verstellen. Bei einer bestimmten Größe eines Motorblocks werden also zwischen den zwei möglichen Bearbeitungen die beiden Honspindeln immer gemeinsam hin und her verschoben. Sobald ein in der Größe unterschiedlicher Motorblock bearbeitet werden soll, erfolgt eine Verstellung des gegenseitigen Abstands der beiden Spindeln mit der zweiten Verstelleinrichtung und ggf. eine Änderung der Positionen, zwischen denen die erste Verstelleinrichtung die beiden Honspindeln hin und her schiebt.With the honing station proposed by the invention, it is possible not only to switch between machining a first and a second pair of cylinder bores as before, but also to adjust the position at which the first and second pairs are arranged. At a certain size of an engine block, the two honing spindles are always moved back and forth together between the two possible machining operations. As soon as an engine block of different sizes is to be machined, the mutual spacing of the two spindles is adjusted with the second adjusting device and, if necessary, the positions between which the first adjusting device pushes the two honing spindles back and forth are changed.

Insbesondere kann vorgesehen sein, daß beide Verstelleinrichtungen unabhängig voneinander betätigbar sind. Die zweite Verstelleinrichtung muß nur dann in Aktion treten, wenn auf einen anderen Typ von Motorblock umgestellt werden soll.In particular, it can be provided that the two adjusting devices can be actuated independently of one another. The second adjustment device only has to take action if a changeover to another type of engine block is required.

In Weiterbildung der Erfindung kann vorgesehen sein, daß die Honstation eine Steuereinrichtung zur Ansteuerung der Verstellantriebe bzw. Verstelleinrichtungen aufweist. Diese Steuereinrichtung kann entweder durch einen Bediener betätigbar sein, der, sobald ein neuer Typ von Motorblock kommt, auf ein anderes Programm umschaltet. Es ist aber auch möglich, daß die Honstation eine Identifizierungseinrichtung für den Motorblock hat und sich bei Erkennen eines Typs von Motorblock selbst auf diesen umschaltet.In a further development of the invention, it can be provided that the honing station has a control device for controlling the adjustment drives or adjustment devices. This control device can either be operated by an operator who, as soon as a new type of engine block arrives, switches over to a different program. However, it is also possible for the honing station to have an identification device for the engine block and to switch itself over to this when a type of engine block is detected.

Eine Möglichkeit, wie die Verstelleinrichtung betätigt werden kann, besteht darin, daß der Verstellantrieb einen Schrittmotor aufweist. Dann kann durch Abgabe einer bestimmten Signalfolge die Vorrichtung auf ein neues Maß eingestellt werden. In Weiterbildung kann vorgesehen sein, daß die Honstation zwei mit Endschaltern zur Abschaltung des ersten Verstellantriebs zusammenwirkende Anschläge aufweist, die verstellbar ausgebildet sind. Diese Anschläge dienen dazu, die Stellen für das erste und zweite zu honende Bohrungspaar zu definieren. Bei Umschalten auf einen anderen Motorblock können diese Anschläge verschoben werden. Es muß sich selbstverständlich nicht um Anschläge im körperlichen Sinn handeln. Es ist auch möglich, diese Anschläge durch Lichtschranken oder auch durch Zählen eines Weggebers auszubilden.One way in which the adjusting device can be operated is for the adjusting drive to have a stepper motor. The device can then be set to a new dimension by emitting a specific signal sequence. In a further development it can be provided that the honing station has two stops which cooperate with limit switches for switching off the first adjustment drive and which are designed to be adjustable. These stops are used to define the locations for the first and second pair of holes to be honed. When switching to another engine block these stops can be moved. Of course, it does not have to be physical attacks. It is also possible to design these stops by means of light barriers or by counting a displacement sensor.

Das oben erläuterte Problem mit den unterschiedlichen Bohrungsabständen stellt sich selbstverständlich nicht nur bei dem Bearbeiten der Bohrungen selbst, sondern auch bei dem nach der Bearbeitung erfolgenden Messen der Bohrungen. Die Erfindung schlägt daher vor, eine Meßstation zur gleichzeitigen Messung zweier Bohrungen in praktisch der gleichen Weise auszubilden wie die Honstation selbst, d.h. die beiden Meßeinrichtungen mit Verstelleinrichtungen zu versehen, von denen die eine Verstelleinrichtung beide Meßeinrichtungen gemeinsam verschiebt, während die zweite nur den gegenseitigen Abstand verändern kann. Einzelheiten dieser Verstelleinrichtungen können so sein wie bei der Honstation selbst.The problem explained above with the different borehole distances naturally arises not only when machining the boreholes themselves, but also when measuring the boreholes after machining. The invention therefore proposes to design a measuring station for the simultaneous measurement of two bores in practically the same way as the honing station itself, i.e. to provide the two measuring devices with adjusting devices, of which one adjusting device moves both measuring devices together, while the second can only change the mutual distance. Details of these adjustment devices can be as for the honing station itself.

Erfindungsgemäß kann eine derartige Honstation und/oder eine derartige Meßstation Teil einer Honmaschine zur Bearbeitung von auf einer Transferstraße transportierten Werkstücken mit mehreren Bohrungen sein.According to the invention, such a honing station and / or such a measuring station can be part of a honing machine for processing workpieces with several bores transported on a transfer line.

Dabei kann insbesondere vorgesehen sein, daß die Honmaschine zwei Honstationen aufweist, von denen beispielsweise die erste ein Vorhonen und die zweite ein Fertighonen durchführt.In particular, it can be provided that the honing machine has two honing stations, of which, for example, the first performs pre-honing and the second carries out finish honing.

Es kann vorgesehen sein, daß die Werkstücke in Richtung der die Honspindeln bzw. Meßeinrichtungen verbindenden Linie transportiert werden. In diesem Fall kann zum Verschieben beider Honstationen oder der Honstation und der Meßstation eine durchgehende Schiene verwendet werden.It can be provided that the workpieces are transported in the direction of the line connecting the honing spindles or measuring devices. In this case, a continuous rail can be used to move both honing stations or the honing station and the measuring station.

Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich aus den Ansprüchen, der folgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:

Fig. 1
schematisch eine Honstation an einer Transferstraße;
Fig. 2
die Anordnung zweier Honspindeln bei der Bearbeitung eines ersten Paares von Bohrungen;
Fig. 3
die Anordnung der Figur 2 bei der Bearbeitung eines zweiten Paares von Bohrungen;
Fig. 4
die Anordnung bei einem unterschiedlichen Zylinderblock
Further features, details and advantages of the invention result from the claims, the following description of a preferred embodiment of the invention and from the drawing. Here show:
Fig. 1
schematically a honing station on a transfer line;
Fig. 2
the arrangement of two honing spindles when machining a first pair of bores;
Fig. 3
the arrangement of Figure 2 when machining a second pair of holes;
Fig. 4
the arrangement with a different cylinder block

Die in Figur 1 stark vereinfacht dargestellte Honmaschine enthält auf zwei Trägern 1 eine horizontale Schiene 2. Auf der horizontalen Schiene 2 ist in Längsrichtung der Schiene 2 verschiebbar ein Schlitten 3 gelagert. Auf dem Schlitten 3 ist ein Spindelstock 4 befestigt, in dem eine nur angedeutete Honspindel 5 gelagert ist. Die Honspindel 5 kann durch einen nicht dargestellten Antrieb gedreht und in eine auf- und abgehende Bewegung versetzt werden. Die Honspindel kann also die übliche beim Honen auftretende Bewegung ausführen. Der Spindelstock 4 ist im Stand der Technik bekannt. Der Spindelstock 4 ist fest mit dem Schlitten 3 verbunden, so daß eine Verschiebung des Schlittens 3 auf der Schiene 2 auch zu einer Verschiebung des Spindelstocks 4 führt.The honing machine shown in a highly simplified form in FIG. 1 contains a horizontal rail 2 on two supports 1. On the carriage 3, a headstock 4 is fixed, in which an only indicated honing spindle 5 is mounted. The honing spindle 5 can be rotated by a drive, not shown, and set in an up and down movement. The honing spindle can therefore carry out the usual movement that occurs during honing. The headstock 4 is known in the prior art. The headstock 4 is firmly connected to the carriage 3, so that a displacement of the carriage 3 on the rail 2 also leads to a displacement of the headstock 4.

Auf dem Schlitten 3 ist ein zweiter Spindelstock 6 in Längsrichtung des Schlittens 3 und der Schiene 2 verschiebbar geführt. Dieser zweite Spindelstock 6 enthält ebenfalls eine Honspindel 7, die der Honspindel 5 entspricht. Zur Verschiebung des Spindelstocks 6 auf dem Schlitten 3 ist eine Verstelleinrichtung 8 vorgesehen, die einen Antriebsmotor 9 aufweist. Die Verstelleinrichtung 8 dient dazu, den zweiten Spindelstock 6 auf dem Schlitten 3 gegenüber dem Spindelstock 4 zu verschieben, so daß sich der Abstand der beiden Spindelstöcke 4, 6 voneinander und damit der Abstand der beiden Honspindeln 5, 7 voneinander ändern läßt.On the carriage 3, a second headstock 6 is slidably guided in the longitudinal direction of the carriage 3 and the rail 2. This second headstock 6 also contains one Honing spindle 7, which corresponds to the honing spindle 5. To move the headstock 6 on the carriage 3, an adjusting device 8 is provided which has a drive motor 9. The adjusting device 8 serves to move the second headstock 6 on the carriage 3 relative to the headstock 4, so that the distance between the two headstocks 4, 6 from one another and thus the distance between the two honing spindles 5, 7 can be changed.

Die Achsen der beiden Honspindeln sind durch die Strichpunktierten Linien 10 in der Figur 1 dargestellt.The axes of the two honing spindles are represented by the dash-dotted lines 10 in FIG. 1.

Wir der Antriebsmotor 9 nicht betrieben, so ist der Abstand der beiden Honspindeln voneinander fest.If the drive motor 9 is not operated, the distance between the two honing spindles is fixed.

Zum Verschieben des Schlittens auf der Schiene 2 dient ein erster Verstellantrieb 11, der ebenfalls einen Antriebsmotor 12 aufweist. Die Betätigung des Antriebsmotors 12 führt dazu, daß beide Spindelstöcke 4, 6 unter Beibehaltung Ihres gegenseitigen Abstandes längs der Schiene 2 verschoben werden.A first adjustment drive 11, which also has a drive motor 12, is used to move the slide on the rail 2. The actuation of the drive motor 12 causes the two headstocks 4, 6 to be displaced along the rail 2 while maintaining their mutual distance.

Die Honstation ist an einer schematisch angedeuteten Transferstraße 13 angeordnet. Auf der Transferstraße 13 werden einzelne Motorblocks taktweise herangebracht und unter die Honspindeln gesetzt. Die Vertaktung der Transferstraße 13 erfolgt immer um einen festen Abstand, so daß nach jedem Taktzyklus ein Motorblock 14 in der dargestellten Stellung unter der Honstation liegt. Bei feststehendem Motorblock 14 werden dann zunächst die erste und dritte Bohrung gehont, anschließend die Honspindeln zurückgezogen und mit Hilfe des Antriebsmotors 12 beide Spindelstöcke gleichzeitig in eine Position verschoben, die dem zweiten Paar von Zylinderbohrungen entspricht. Nach erfolgter Bearbeitung werden beide Spinnstöcke wieder gemeinsam in die Ausgangsposition zurückbewegt und ein neuer Motorblock 14 auf der Transferstraße 13 herbeigeführt.The honing station is arranged on a schematically indicated transfer line 13. Individual engine blocks are brought up in cycles on transfer line 13 and placed under the honing spindles. The transfer line 13 is always clocked at a fixed distance, so that after each clock cycle an engine block 14 is in the position shown below the honing station. With the engine block 14 stationary, the first and third bores are then honed, then the honing spindles are withdrawn and, with the aid of the drive motor 12, both headstocks are simultaneously moved into a position which corresponds to the second pair of cylinder bores. After editing, both The spinning sticks are moved back together to the starting position and a new motor block 14 is brought about on the transfer line 13.

Diese unterschiedliche Bewegung ist in Figur 2 und 3 im einzelnen erläutert. Figur 2 und 3 zeigen die beiden Spindelstöcke 6, 4 mit den angedeuteten Spindeln 7 und 5. Zur Verstellung beider Spindelstöcke 4, 6 gemeinsam dient der rechts in Figur 2 dargestellte Verstellantrieb 11, der gegenüber einer festen Bezugsstelle 15, beispielsweise dem Träger 1, arbeitet. Zwischen den beiden Spindelstöcken 6, 4 ist der Verstellantrieb 8 angedeutet, der zur einer Veränderung des gegenseitigen Abstandes der beiden Spindelstöcke 6, 4 dienen kann.This different movement is explained in detail in FIGS. 2 and 3. FIGS. 2 and 3 show the two headstocks 6, 4 with the indicated spindles 7 and 5. The adjustment drive 11 shown on the right in FIG. 2, which works in relation to a fixed reference point 15, for example the carrier 1, serves to adjust both headstocks 4, 6 together . Between the two headstocks 6, 4, the adjustment drive 8 is indicated, which can be used to change the mutual distance between the two headstocks 6, 4.

Der Motorblock 14 enthält vier parallele äquidistante Zylinderbohrungen 16. Die Honstation ist durch den Verstellantrieb 11 in ihre eine Endstellung verfahren, die der von links aus gerechnet ersten und dritten Zylinderbohrung 16 entspricht. Nach Bearbeitung dieses Bohrungspaares verschiebt der Verstellantrieb 11 die beiden Spindelstöcke 4, 6 bei Beibehaltung ihres gegenseitigen Abstandes in die rechte Endstellung, die in Figur 3 dargestellt ist. Hier kann nun das zweite Bohrungspaar 16 bearbeitet werden. Nach Bearbeitung dieses zweiten Bohrungspaares verschiebt der Verstellantrieb 11 die Anordnung wieder in die in Figur 2 dargestellte Position, so daß der nächste auf der Transferstraße 13 herangelieferte Motorblock 14 in gleicher Weise bearbeitet werden kann. Die Motorblöcke 14 werden durch die Transferstraße 13 immer an der gleichen Stelle abgesetzt. Der Verstellantrieb 11 dient also dazu, die beiden Spindelstöcke zwischen 2 Endpositionen hin und her zu bewegen. Diese Endpositionen können beispielsweise durch Anschläge und mit den Anschlägen zusammenwirkende Endschalter definiert werden.The engine block 14 contains four parallel, equidistant cylinder bores 16. The honing station is moved into its one end position by the adjusting drive 11, which corresponds to the first and third cylinder bores 16 calculated from the left. After machining this pair of bores, the adjusting drive 11 moves the two headstocks 4, 6 into the right end position, which is shown in FIG. 3, while maintaining their mutual distance. The second pair of holes 16 can now be machined here. After machining this second pair of bores, the adjusting drive 11 shifts the arrangement back into the position shown in FIG. 2, so that the next engine block 14 delivered on the transfer line 13 can be machined in the same way. The engine blocks 14 are always placed in the same place by the transfer line 13. The adjustment drive 11 thus serves to move the two headstocks back and forth between two end positions. These end positions can, for example, by stops and with limit switches interacting with the stops are defined.

Der Pfeil 18 mit den zwei Spitzen in Figur 2 und 3 zeigt die beiden Positionen, zwischen denen der Antrieb 11 die beiden Spindeln gemeinsam bei der Bearbeitung eines Typs von Motorblock 14 gegenüber der festen Bezugslinie 15 verschiebt.The arrow 18 with the two tips in FIGS. 2 and 3 shows the two positions between which the drive 11 moves the two spindles together when machining one type of engine block 14 with respect to the fixed reference line 15.

Kommt nun auf der Transferstraße ein Motorblock heran, der unterschiedliche gegenseitige Abstände der Zylinderbohrungen voneinander und/oder einen unterschiedlichen Abstand der ersten Bohrung von der Stirnfläche aufweist, so tritt die in Figur 4 dargestellte Lage auf. Der in Figur 4 dargestellte Motorblock 14' hat größere Abstände der Zylinderbohrungen. Zur Berücksichtigung des unterschiedlichen Abstands von einer Bezugsfläche, beispielsweise von der einen Stirnfläche 17 des Motorblocks 14, werden die Endstellungen der durch den Antrieb 11 bewirkten Verschiebung geändert. Dies reicht allein aber nicht aus, um den unterschiedlichen Bohrungsabstand zu berücksichtigen. Damit dieser berücksichtigt werden kann, tritt nun die Verstelleinrichtung 8 in Kraft, die den gegenseitigen Abstand der beiden Spindelstöcke 6, 4 und damit der beiden Honspindeln 5 und 7 von einander ändert. Bei dem Motorblock 14' der Figur 4 wird der Abstand also vergrößert. Wenn nun mehrere Motorblocks der Größe 14' bearbeitet werden, so wird die Verschiebebewegung zwischen den beiden Paaren von Bohrungen 16 wieder durch den Verstellantrieb 11 bewirkt, während der Verstellantrieb 8 so lange außer Funktion bleibt, bis wieder ein Motorblock mit anderem Bohrungsabstand herangeführt wird.If an engine block now approaches on the transfer line, which has different mutual distances of the cylinder bores from one another and / or a different distance of the first bore from the end face, the situation shown in FIG. 4 occurs. The engine block 14 'shown in Figure 4 has larger distances between the cylinder bores. To take into account the different distance from a reference surface, for example from one end surface 17 of the engine block 14, the end positions of the displacement caused by the drive 11 are changed. However, this alone is not sufficient to take the different hole spacing into account. So that this can be taken into account, the adjusting device 8 now comes into effect, which changes the mutual distance between the two headstocks 6, 4 and thus the two honing spindles 5 and 7 from one another. In the engine block 14 'of FIG. 4, the distance is therefore increased. If several motor blocks of size 14 'are now machined, the displacement movement between the two pairs of bores 16 is again brought about by the adjustment drive 11, while the adjustment drive 8 remains inoperative until an engine block with a different bore spacing is brought up again.

Der Pfeil 19 deutet an, zwischen welchen Positionen der Antrieb 8 den Abstand der beiden Honspindeln 5 und 7 voneinander zwischen der Bearbeitung zweier Typen von Motorblöcken 14 verändert.The arrow 19 indicates between which positions the drive 8 the distance between the two honing spindles 5 and 7 changed from one another between machining two types of engine blocks 14.

Die Ansteuerung der beiden Verstellantriebe 11, 8 kann beispielsweise über eine Steuereinrichtung erfolgen, die ein Bedienfeld aufweist. Dort können die Abstände unter Umständen direkt von einer Bedienperson in exakten Maßen eingegeben werden. Es ist selbstverständlich auch denkbar, daß die Steuereinrichtung eine automatische Leseeinrichtung aufweist, die Markierungen am Motorblock lesen kann und sich aufgrund gespeicherter Informationen dann auf den neuen Motorblock selbst einstellen kann. Was unter Bezugnahme auf die Figuren 1 - 4 für die Honbearbeitung beschrieben wurde, ist erfindungsgemäß in gleicher Weise auch bei einer Meßstation anwendbar, bei der anstelle der beiden Honspindeln 5, 7 zwei Meßeinrichtungen vorhanden sind, die in die Bohrungen abgesenkt werden können um diese zu messen. Auch hier ist eine derartige Verstellmöglichkeit zur Bearbeitung unterschiedlicher Motorblocktypen sinnvoll.The control of the two adjustment drives 11, 8 can take place, for example, via a control device which has a control panel. There, under certain circumstances, the distances can be entered directly by an operator in exact dimensions. It is of course also conceivable that the control device has an automatic reading device that can read markings on the engine block and can then adjust itself to the new engine block based on stored information. What has been described with reference to FIGS. 1-4 for honing processing can also be used according to the invention in the same way for a measuring station in which instead of the two honing spindles 5, 7 there are two measuring devices which can be lowered into the bores in order to close them measure up. Such an adjustment option for processing different engine block types is also useful here.

Die Erfindung schlägt ebenfalls ein Verfahren nach einem oder beiden der Ansprüche 14 und 15 vor.The invention also proposes a method according to one or both of claims 14 and 15.

Der Wortlaut der Patentansprüche wird durch Bezugnahme zum Inhalt der Beschreibung gemacht.The wording of the claims is incorporated by reference into the content of the description.

Claims (15)

Honstation zur gleichzeitigen Bearbeitung von mindestens zwei Bohrungen (16) in einem Block (14), mit 1.1 zwei parallel zueinander angeordneten antreibbaren Honspindeln (5, 7) 1.2 einer von einem Verstellantrieb (12) antreibbaren Verstelleinrichtung (11) zur Positionierung beider Honspindeln (5, 7) gemeinsam in Richtung einer die Spindeln (5, 7) verbindenden Linie, sowie 1.3 einer von einem Verstellantrieb (9) antreibbaren Verstelleinrichtung (8) zur Positionierung einer Honspindel (7) gegenüber der anderen (5) in Richtung einer diese verbindenden Linie. Honing station for simultaneous machining of at least two bores (16) in one block (14), with 1.1 two drivable honing spindles (5, 7) arranged parallel to each other 1.2 an adjusting device (11) which can be driven by an adjusting drive (12) for positioning both honing spindles (5, 7) together in the direction of a line connecting the spindles (5, 7), and 1.3 an adjusting device (8) which can be driven by an adjusting drive (9) for positioning one honing spindle (7) relative to the other (5) in the direction of a line connecting the latter. Honstation nach Anspruch 1, bei der beide Verstelleinrichtungen (11, 8) unabhängig voneinander betätigbar sind.Honing station according to Claim 1, in which the two adjusting devices (11, 8) can be actuated independently of one another. Honstation nach Anspruch 1 oder 2, enthaltend eine Steuereinrichtung zur Ansteuerung der Verstellantriebe bzw. der Verstelleinrichtungen.Honing station according to claim 1 or 2, comprising a control device for controlling the adjustment drives or the adjustment devices. Honstation nach einem der vorhergehenden Ansprüche, bei der mindestens ein Verstellantrieb (9, 12) einen Schrittmotor aufweist.Honing station according to one of the preceding claims, in which at least one adjustment drive (9, 12) has a stepper motor. Honstation nach einem der vorhergehenden Ansprüche, mit zwei mit Endschaltern zur Abschaltung des ersten Verstellantriebs (12) zusammenwirkenden Anschlägen, die verstellbar ausgebildet sind.Honing station according to one of the preceding claims, with two stops which cooperate with limit switches for switching off the first adjustment drive (12) and which are designed to be adjustable. Meßstation zum gleichzeitigen Messen zweier Bohrungen (16) in einem Block (14), mit 6.1 zwei nebeneinander angeordneten Meßeinrichtungen, 6.2 einer von einem Verstellantrieb antreibbaren Feststelleinrichtung zum Positionieren beider Meßeinrichtungen gemeinsam in Richtung einer diese verbindenden Linie, sowie 6.3 einer von einem Verstellantrieb antreibbaren Verstelleinrichtung zum Positionieren einer Meßeinrichtung gegenüber der anderen in Richtung der Verbindungslinie. Measuring station for simultaneous measurement of two bores (16) in one block (14), with 6.1 two measuring devices arranged side by side, 6.2 a locking device which can be driven by an adjusting drive for positioning both measuring devices together in the direction of a line connecting them, and 6.3 an adjusting device that can be driven by an adjusting drive for positioning one measuring device relative to the other in the direction of the connecting line. Meßstation nach Anspruch 6, bei der beide Verstelleinrichtungen unabhängig voneinander betätigbar sind.Measuring station according to Claim 6, in which the two adjusting devices can be actuated independently of one another. Meßstation nach Anspruch 6 oder 7, enthaltend eine Steuereinrichtung zur Ansteuerung der Verstellantriebe bzw. Verstelleinrichtungen.Measuring station according to claim 6 or 7, containing a control device for controlling the adjustment drives or adjustment devices. Meßstation nach einem der Ansprüche 6 bis 8, bei der der Verstellantrieb einem Schrittmotor aufweist.Measuring station according to one of claims 6 to 8, in which the adjusting drive has a stepper motor. Meßstation nach einem der Ansprüche 6 - 9, mit zwei mit Endschaltern zur Abschaltung des ersten Verstellantriebs zusammenwirkenden Anschlägen, die verstellbar ausgebildet sind.Measuring station according to one of claims 6-9, with two stops which cooperate with limit switches for switching off the first adjustment drive and which are designed to be adjustable. Honmaschine zur Bearbeitung von auf einer Transferstraße (13) transportierten Werkstücken (14) mit mehreren Bohrungen (16), enthaltend mindestens eine Honstation nach einem der Ansprüche 1 - 5 und/oder eine Meßstation nach einem der Ansprüche 6 -10.Honing machine for processing workpieces (14) transported on a transfer line (13) with a plurality of bores (16), containing at least one honing station according to one of claims 1-5 and / or a measuring station according to one of claims 6-10. Honmaschine nach Anspruch 11, mit zwei Honstationen zur Durchführung unterschiedlicher Bearbeitungen.Honing machine according to claim 11, with two honing stations for performing different machining operations. Honmaschine nach Anspruch 11 oder 12, bei der die Werkstücke (14) in Richtung der die Honspindel (5, 7) bzw. Meßeinrichtungen verbindenden Linie transportiert werden.Honing machine according to claim 11 or 12, in which the workpieces (14) are transported in the direction of the line connecting the honing spindle (5, 7) or measuring devices. Verfahren zur gleichzeitigen Honbearbeitung von mindestens zwei Bohrungen (16) in einem Werkstück (14) mit zwei parallel zueinander angeordneten Honspindeln (5, 7), dadurch gekennzeichnet, daß zwischen den Bearbeitungsvorgängen die Honspindeln (5, 7) zwischen den Bohrungen (16) entsprechenden Positionen gemeinsam seitlich verschoben werden, und beim Übergang zu einem Werkstück (14) mit anderen Abständen der Bohrungen (16) der gegenseitige Abstand der Honspindeln (5, 7) voneinander und die den Bohrungen (16) entsprechenden Positionen geändert werden.Process for the simultaneous honing of at least two bores (16) in a workpiece (14) with two honing spindles (5, 7) arranged parallel to one another, characterized in that between the machining operations the honing spindles (5, 7) between the bores (16) correspond Positions are laterally shifted together, and when changing to a workpiece (14) with different distances between the bores (16), the mutual distance of the honing spindles (5, 7) from one another and the positions corresponding to the bores (16) are changed. Verfahren zum gleichzeitigen Messen mindestens zweier in einem Werkstück (14) angeordneter Bohrungen (16) mit zwei nebeneinander angeordneten Meßeinrichtungen, dadurch gekennzeichnet, daß zwischen den Meßvorgängen die Meßeinrichtungen zwischen den Bohrungen (16) entsprechenden Positionen gemeinsam seitlich verschoben werden, und beim Übergang zu einem Werkstück (14) mit anderen Abständen der Bohrungen (16) der gegenseitige Abstand der Meßeinrichtungen voneinander und die den Bohrungen (16) entsprechenden Positionen geändert werden.Method for simultaneously measuring at least two bores (16) arranged in a workpiece (14) two measuring devices arranged side by side, characterized in that between the measuring processes the measuring devices between the positions (bores) corresponding to the bores (16) are laterally displaced, and when moving to a workpiece (14) with different distances between the bores (16) the mutual distance between the measuring devices and the positions corresponding to the bores (16) are changed.
EP91109259A 1990-06-28 1991-06-06 Honing machine Expired - Lifetime EP0463427B1 (en)

Applications Claiming Priority (2)

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DE4020614A DE4020614A1 (en) 1990-06-28 1990-06-28 HONING MACHINE
DE4020614 1990-06-28

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EP0463427A2 true EP0463427A2 (en) 1992-01-02
EP0463427A3 EP0463427A3 (en) 1992-07-29
EP0463427B1 EP0463427B1 (en) 1994-11-17

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US8512095B2 (en) 2006-07-19 2013-08-20 Nagel Maschinen- Und Werkzeugfabrik Gmbh Method for machining that combines fine boring and honing and machining equipment for the execution of the method

Also Published As

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ES2064004T3 (en) 1995-01-16
DE4020614A1 (en) 1992-01-09
EP0463427A3 (en) 1992-07-29
EP0463427B1 (en) 1994-11-17
DE59103525D1 (en) 1994-12-22

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