EP0674957A1 - Notching installation with an intermediate alignment of rotor sheets - Google Patents

Notching installation with an intermediate alignment of rotor sheets Download PDF

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Publication number
EP0674957A1
EP0674957A1 EP95102307A EP95102307A EP0674957A1 EP 0674957 A1 EP0674957 A1 EP 0674957A1 EP 95102307 A EP95102307 A EP 95102307A EP 95102307 A EP95102307 A EP 95102307A EP 0674957 A1 EP0674957 A1 EP 0674957A1
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EP
European Patent Office
Prior art keywords
rotor
stator
punching
alignment device
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95102307A
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German (de)
French (fr)
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EP0674957B1 (en
Inventor
Günter Neher
Manfred Bülow
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Mueller Weingarten AG
Original Assignee
Maschinenfabrik Mueller Weingarten AG
Mueller Weingarten AG
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Publication of EP0674957A1 publication Critical patent/EP0674957A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/22—Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools

Definitions

  • the invention relates to a slot punching system for the production of stator and rotor sheets with a device for intermediate alignment of the rotor in the stator staging station.
  • the slot punching system usually consists of 2 slot or punching machines (so-called tandem system), stacking stations and a transport system arranged in the center of the system, e.g. designed as a turnstile.
  • DE 26 32 382 essentially describes the formation of stacks while avoiding the height being influenced by the punching ridge.
  • DE 38 41 926 A1 deals with the actual groove and separating cut
  • DE 32 49 402 deals with the blank transport and shows a solution for the central adjustment of the electro-magnetic bars to different blank diameters.
  • axis hole Before the blanks are punched in the grooving machine, a precise hole is made in the center, the so-called axis hole. This hole is used to hold and center the blank during machining in the grooving system.
  • one or more grooves are made in the bore and on the outer diameter of the round blank. These grooves, hereinafter referred to as fixing grooves, must lie in an exact position relative to the stator and rotor grooves that are actually to be produced on the groove system. Position deviations are only permissible in ⁇ m and the aim is a value that corresponds to the ideal deviation value of 0 mm. Instead of fixing grooves, other types are also available, e.g. Drilling possible.
  • the object of the invention is to provide a tool-independent device in which all technically meaningful arrangements and numbers of fixing, stator and rotor grooves can be positioned with respect to one another.
  • This device is preferably used for grooving with mechanically driven sub-device.
  • the device according to the invention for the intermediate alignment of the rotor blank pursues the idea of a completely flexible handling of this blank for adaptation to an unchangeable tool position.
  • the basic idea of the invention is to integrate a device into the stator push-off device with simple means, for example, in the stator lay-down station, which, by a precisely defined angular pivoting of the rotor blank, sets the position required for the next punching operation. This swiveling takes place via a rotary drive e.g. with angle encoder (program-controlled) or with fixed stops.
  • FIG. 1 The basic structure of a slot punching system for the production of stator and rotor laminations can be seen from FIG. 1 .
  • this system consists of the blank or blank stacking 1, a blank or blank alignment station 2, a stator slot machine 3, a stator placement station 4 with intermediate rotor alignment 5, a rotor slot machine 6 and a rotor placement station 7.
  • Figure 2a - 2f shows an example of a round pass through the grooving machine.
  • FIG. 2a The arbitrary position of the round blank in the stacking point 1 can be seen in FIG. 2a .
  • Figure 2b shows the alignment of the circular blank in the alignment station 2.
  • the outer groove or outer marking 10 is in a precisely defined position relative to the following stator groove on the automatic slot machine 3 and to the position of the inner axle hole groove 11.
  • the reason for this lies in the fact that when punching in a slot punching system, the first punched stator slot and the first punched rotor slot are not in alignment, as already described.
  • the first grooves 12 and the separating cut 13 can be seen in FIG. 2c in accordance with the production on the stator automatic slot machine 3.
  • FIG. 2d shows the finished stator sheet 14 in the stator laying station 4 with the circumferential groove indicated.
  • the still un-grooved rotor plate 15 must now be rotated through the angle ⁇ by the intermediate rotor alignment 5. This measure then ensures the exact required insertion position in the automatic rotor grooving machine 6.
  • the first rotor groove position to be produced is indicated by dash-dotted lines.
  • Arrow 16 shows possible directions of the position correction.
  • FIG. 2e shows the rotor blank in the position adapted in accordance with the tool position which is constant in the rotor-grooving machine 6.
  • the finished rotor plate with indicated circumferential grooves is shown in Figure 2f .
  • the angle ⁇ corresponds to the rotor groove division.
  • This angle ⁇ is not equal to the pitch angle ⁇ of the stator plate.
  • the correction angle ⁇ is a function of ⁇ and ⁇ and, depending on the magnitude, the correction is carried out clockwise or counterclockwise.
  • the actually inventive intermediate rotor alignment 5 is shown in FIG. 3a.
  • the stator rotor plate 14, 15, which is removed from the stator slot machine with the aid of the transport system 8 and the electro-magnetic bars 9, is deposited on the stator depositing station 4. While the transport system 8 is being pivoted in, the stator repulsion device 17 with the intermediate rotor alignment 5 is moved out of the working area by cylinders 19 to avoid a collision. This raised position is not shown in detail.
  • the piston rod 20 of the cylinder 19 moves the entire system 5, 17 downward until the push-off pins 18 touch the stator plate 14 and the rotor holder 21 on the rotor plate 15.
  • Electro magnets 22 are fastened to the rotor holder 21, whereby a safe takeover of the rotor plate after switching off the electro magnetic bars 9 is guaranteed.
  • the entire device 5, 17 is fixedly connected to the slot system via the holder 27.
  • Cylinder 23 moves downward by the dimension "a” and the stator plate is repelled by the push-off pins 18, which are connected to the cylinder 23 by a bridge 24.
  • the magnetic bars 9 move a small amount, for example 4 mm high. This situation is shown in Figure 3b .
  • Figure 3c shows the pivoting of the rotor plate by the required angle ⁇ .
  • cylinder 25 moves up by the amount "b", whereby the rotor plate is also raised by this amount.
  • the cylinder 25 is operatively connected to the rotor holder 21, as indicated in principle in FIG. 3c.
  • the pivoting device 26 pivots by the angle ⁇ .
  • the rotor plate is then taken over again by the transport system 8 and the electro-magnetic bars 9 and the stator repulsion device 17 with the intermediate rotor alignment 5 is moved out of the interference area of the transport system by the piston rod 20 in connection with the cylinder 19.
  • the transport system now places the rotor plate in the correct position in the rotor grooving machine 6 and after the grooving has been carried out, the finished rotor plate is transported to the rotor laying station.

Abstract

The slot punching installation has an intermediate station (4) arranged between the first and second work stations (3,6). The intermediate station has a workpiece alignment device (5) by which the workpiece is correctly positioned in preparation for the following slot punching sequence. The rotor alignment device incorporates a stator push-out unit which uses a height-adjustable piston/cylinder assembly. A piston/cylinder combination enables the rotor alignment device to be lowered onto the stator-rotor plate. <IMAGE>

Description

Die Erfindung betrifft eine Nutenstanzanlagen zur Herstellung von Stator- und Rotorblechen mit einer Einrichtung zum Zwischenausrichten des Rotors in der Statorablegestation.The invention relates to a slot punching system for the production of stator and rotor sheets with a device for intermediate alignment of the rotor in the stator staging station.

Stand der Technik:State of the art:

Nutenstanzanlagen zum Nuten und Trennen von jeweils einem Stator- und einem Rotorblech aus einer Ronde und den dazu erforderlichen Transportmittel sind bekannt.Groove punching systems for grooving and separating a stator and a rotor plate from a round blank and the transport means required for this purpose are known.

Bereits in der DE 26 32 382, der DE 38 41 926 A1 und in der DE 32 49 402 ist ausführlich der Herstellungsablauf beschrieben.The manufacturing process is already described in detail in DE 26 32 382, DE 38 41 926 A1 and DE 32 49 402.

Die Nutenstanzanlage besteht in der Regel aus 2 Nut- oder Stanzmaschinen (sog. Tandem-Anlage), Stapelstationen und ein im Zentrum der Anlage angeordnetes Transportsystem, z.B. als Drehkreuz ausgebildet.The slot punching system usually consists of 2 slot or punching machines (so-called tandem system), stacking stations and a transport system arranged in the center of the system, e.g. designed as a turnstile.

Die einzelnen Arbeitsschritte sind:

  • Ronde vom Stapelstation mit Transportsystem aufnehmen, z.B. mittels schaltbaren Magneten
  • Transport zur Ausrichtstation
  • Ausrichten
  • Transport zum Stator-Nutautomat
  • Stator nuten und Rotorronde ausschneiden
  • Stator und Rotorronde zur Stator-Stapelstation transportieren
  • Stator ablegen
  • Transport Rotorronde zum Rotor-Nutautomat
  • Rotor nuten
  • Transport Rotorblech zur Rotor-Stapelstation
  • Rotor ablegen
The individual steps are:
  • Pick up the circular blank from the stacking station with the transport system, e.g. using switchable magnets
  • Transport to the alignment station
  • Align
  • Transport to the stator slot machine
  • Groove the stator and cut out the rotor blank
  • Transport the stator and rotor blank to the stator stacking station
  • Put down the stator
  • Transport of the rotor blank to the rotor grooving machine
  • Groove the rotor
  • Transport of the rotor plate to the rotor stacking station
  • Put down the rotor

In der DE 26 32 382 wird im wesentlichen die Stapelbildung unter Vermeidung einer Beeinflussung der Höhe durch Stanzgrat beschrieben.DE 26 32 382 essentially describes the formation of stacks while avoiding the height being influenced by the punching ridge.

Die DE 38 41 926 A1 hat den eigentlichen Nut- und Trennschnitt zum Inhalt, während die DE 32 49 402 sich mit dem Rondentransport beschäftigt und eine Lösung zur zentralen Einstellung der Elektro-Magnetstäbe auf verschiedene Rondendurchmesser aufzeigt.DE 38 41 926 A1 deals with the actual groove and separating cut, while DE 32 49 402 deals with the blank transport and shows a solution for the central adjustment of the electro-magnetic bars to different blank diameters.

Aufgabe und Vorteile der ErfindungObject and advantages of the invention

Bevor die Ronden in der Nutenstanzanlage gestanzt werden, wird im Zentrum eine präzise Bohrung hergestellt, das sogenannte Achsloch. Diese Bohrung dient zur Aufnahme und Zentrierung der Ronde während der Bearbeitung in der Nutenstanzanlagen. Zusätzlich wird in der Bohrung und am Außendurchmesser der Ronde eine oder mehrere Nuten eingebracht. Diese Nuten, im weiteren Fixiernuten genannt, müssen in einer genauen Lage zu den eigentlich auf der Nutanlage zu erzeugenden Stator- und Rotornuten liegen. Lageabweichungen sind nur in µm zulässig und angestrebt wird ein Wert der dem Ideal-Abweichungswert von 0 mm entspricht. Statt Fixiernuten sind auch andere Ausprägungen z.B. Bohrungen möglich.Before the blanks are punched in the grooving machine, a precise hole is made in the center, the so-called axis hole. This hole is used to hold and center the blank during machining in the grooving system. In addition, one or more grooves are made in the bore and on the outer diameter of the round blank. These grooves, hereinafter referred to as fixing grooves, must lie in an exact position relative to the stator and rotor grooves that are actually to be produced on the groove system. Position deviations are only permissible in µm and the aim is a value that corresponds to the ideal deviation value of 0 mm. Instead of fixing grooves, other types are also available, e.g. Drilling possible.

Würden nun die Fixiernuten am Innen- und Außendurchmesser und auch die Stator- und Rotornuten auf einer Fluchtlinie liegen, so wäre das Ausrichten, der Transport und das entsprechende Einbringen der Stator- und Rotornuten kein Problem. Ist jedoch ein Winkelversatz zwischen der oder den inneren und äußeren Fixiernuten gegeben, so wird das Ausrichten wesentlich erschwert. Das wesentliche Problem tritt jedoch dadurch auf, daß die Zahl der einzubringenden Nuten im Stator und Rotor unterschiedlich ist und durchaus auch eine ungerade Zahl betragen kann. Damit ist immer ein Winkelversatz zwischen den Nuten gegeben, der durch entsprechende Maßnahmen bei der Fertigung zu berücksichtigen ist.If the fixing grooves on the inside and outside diameter as well as the stator and rotor grooves were in alignment, then alignment, transport and the appropriate insertion of the stator and rotor grooves would not be a problem. However, if there is an angular misalignment between the inner and outer fixing grooves, the alignment is made considerably more difficult. However, the main problem arises from the fact that the number of grooves to be introduced in the stator and rotor is different and can also be an odd number. This means that there is always an angular misalignment between the grooves, which has to be taken into account during the manufacturing process.

Keine der im Stand der Technik aufgezeigten Schriften beschäftigt sich mit diesem Problem. In der Praxis wurde bisher das Rotorwerkzeug dem Winkelversatz angepaßt und eine Vielzahl von Sonderwerkzeugen entwickelt, zum Teil werden in diese Werkzeuge auch Schwenk- oder Ausrichtfunktionen integriert.None of the documents shown in the prior art deal with this problem. In practice, the rotor tool has so far been adapted to the angular misalignment and a large number of special tools have been developed. In some cases, swivel or alignment functions are also integrated in these tools.

Aufgabe der Erfindung ist es, eine werkzeugunabhängige Einrichtung zu schaffen, in der alle technisch sinnvollen Anordnungen und Anzahlen der Fixier-, Stator- und Rotornuten zu einander positioniert werden können. Wobei diese Einrichtung bevorzugt bei Nutenstanzen mit mechanisch angetriebener Teileinrichtung Verwendung findet.The object of the invention is to provide a tool-independent device in which all technically meaningful arrangements and numbers of fixing, stator and rotor grooves can be positioned with respect to one another. This device is preferably used for grooving with mechanically driven sub-device.

Diese Aufgabe wird ausgehend von einer Nutenstanzanlage nach dem Oberbegriff des Anspruchs 1 durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved on the basis of a slot punching system according to the preamble of claim 1 by the characterizing features of claim 1.

In den Unteransprüchen sind vorteilhafte und zweckmäßige Weiterbildungen des erfindungsgemäßen Arbeitssystem angegeben.Advantageous and expedient developments of the work system according to the invention are specified in the subclaims.

Die erfindungsgemäße Einrichtung zum Zwischenausrichten der Rotorronde verfolgt den Gedanken einer völlig flexiblen Handhabung dieser Ronde zur Anpassung auf eine unveränderbare Werkzeuglage.The device according to the invention for the intermediate alignment of the rotor blank pursues the idea of a completely flexible handling of this blank for adaptation to an unchangeable tool position.

Der Grundgedanke der Erfindung liegt darin, z.B.in der Statorablegestation in die Stator-Abdrückvorrichtung mit einfachen Mitteln eine Einrichtung zu integrieren, die durch eine genau definierte Winkelverschwenkung der Rotorronde, die für die nächste Stanzoperation erforderliche Lage einstellt. Diese Verschwenkung erfolgt über einen Drehantrieb z.B. mit Drehwinkelgeber (programmgesteuert) oder mit Festanschlägen.The basic idea of the invention is to integrate a device into the stator push-off device with simple means, for example, in the stator lay-down station, which, by a precisely defined angular pivoting of the rotor blank, sets the position required for the next punching operation. This swiveling takes place via a rotary drive e.g. with angle encoder (program-controlled) or with fixed stops.

Der große Vorteil liegt nun in der wesentlich einfacheren Ausführung der Rotorstanzwerkzeuge, die nun nicht mehr der jeweiligen Nutlage anzupassen sind und wesentlich universeller für unterschiedliche Rotoren und Nutzahlen einsetzbar sind.The big advantage now lies in the much simpler design of the rotor punching tools, which can no longer be adapted to the respective slot position and can be used much more universally for different rotors and useful numbers.

Weitere Einzelheiten ergeben sich aus den Zeichnungen, die in dem nachfolgenden Ausführungsbeispiel unter Angabe der Funktion und weiteren Vorteilen näher erläutert sind.Further details emerge from the drawings, which are explained in more detail in the following exemplary embodiment, specifying the function and further advantages.

Es zeigen:

Figur 1
eine Nutenstanzanlage in der Draufsicht in vereinfachter Darstellung
Figur 2a-2f
einen Fertigungsablauf von der Ronde bis zum Stator- und Rotorblech
Figur 3a-3c
die erfingunsgemäße Einrichtung zur Rotor-Zwischenausrichtung.
Show it:
Figure 1
a slot punching system in a top view in a simplified representation
Figure 2a-2f
a manufacturing process from the blank to the stator and rotor plate
Figure 3a-3c
the device according to the invention for intermediate rotor alignment.

Beschreibung des Ausführungsbeispieles:Description of the embodiment:

Der grundsätzliche Aufbau einer Nutenstanzanlage zur Herstellung von Stator- und Rotorblechen ist aus Fig. 1 ersichtlich. Gemäß der Darstellung besteht diese Anlage aus der Platinen- oder Rondenabstapelung 1, einer Platinen- oder Rondenausrichtstation 2, einem Stator-Nutautomat 3, einer Statorablegestation 4 mit Rotor-Zwischenausrichtung 5, einem Rotor-Nutautomat 6 und einer Rotorablegestation 7. Das zentral angeordnete Transportsystem 8 mit Elektro-Magnetstäben 9, welches den Transport der Platinen oder Ronden von Station zu Station bewerkstelligt.The basic structure of a slot punching system for the production of stator and rotor laminations can be seen from FIG. 1 . According to the illustration, this system consists of the blank or blank stacking 1, a blank or blank alignment station 2, a stator slot machine 3, a stator placement station 4 with intermediate rotor alignment 5, a rotor slot machine 6 and a rotor placement station 7. The centrally arranged transport system 8 with electro-magnetic bars 9, which accomplishes the transport of the blanks or round blanks from station to station.

Neu an dieser Anordnung ist die Rotor-Zwischenausrichtung, die in Figur 3a - 3c näher beschrieben wird.What is new about this arrangement is the intermediate rotor alignment, which is described in more detail in FIGS. 3a-3c.

Figur 2a - 2f zeigt ein Beispiel eines Rondendurchlaufes durch die Nutenstanzanlage. Figure 2a - 2f shows an example of a round pass through the grooving machine.

In Figur 2a ist die beliebige Lage der Ronde in der Stapelstelle 1 zu sehen.The arbitrary position of the round blank in the stacking point 1 can be seen in FIG. 2a .

Figur 2b stellt die Ausrichtung der Ronde in der Ausrichtstation 2 dar. Hier ist ersichtlich, daß die Außennutung oder Außenmarkierung 10 in einer genau definierten Lage zu der folgenden Statornutung auf dem Nutenautomat 3 und zu der Lage der inneren Achslochnut 11 hat. Der Grund hierfür liegt in der Tatsache, daß beim Stanzen in einer Nutenstanzanlage die erste gestanzte Statornut und die erste gestanzte Rotornut nicht auf einer Fluchtlinie liegen, wie bereits beschrieben. Figure 2b shows the alignment of the circular blank in the alignment station 2. Here it can be seen that the outer groove or outer marking 10 is in a precisely defined position relative to the following stator groove on the automatic slot machine 3 and to the position of the inner axle hole groove 11. The reason for this lies in the fact that when punching in a slot punching system, the first punched stator slot and the first punched rotor slot are not in alignment, as already described.

In Figur 2c sind die ersten Nuten 12 und der Trennschnitt 13 entsprechend der Fertigung auf dem Stator-Nutautomat 3 erersichtlich. Mit β ist der Teilungswinkel des Statorbleches bezeichnet der sich aus der Beziehung β = 360° dividiert durch die Zahl der Statornuten ergibt.The first grooves 12 and the separating cut 13 can be seen in FIG. 2c in accordance with the production on the stator automatic slot machine 3. The division angle of the stator sheet is designated by β, which results from the relationship β = 360 ° divided by the number of stator slots.

Figur 2d zeigt das fertige Statorblech 14 in der Statorablegestation 4 mit angedeuteter umlaufender Nutung. Das noch ungenutete Rotorblech 15 muß nun um den Winkel γ durch die Rotor-Zwischenausrichtung 5 gedreht werden. Durch diese Maßnahme ist dann die exakte erforderliche Einlegeposition in den Rotor-Nutautomat 6 gewährleistet. Die erste herzustellende Rotornutlage ist strichpunktiert angedeutet. Pfeil 16 zeigt mögliche Richtungen der Lagekorrektur. FIG. 2d shows the finished stator sheet 14 in the stator laying station 4 with the circumferential groove indicated. The still un-grooved rotor plate 15 must now be rotated through the angle γ by the intermediate rotor alignment 5. This measure then ensures the exact required insertion position in the automatic rotor grooving machine 6. The first rotor groove position to be produced is indicated by dash-dotted lines. Arrow 16 shows possible directions of the position correction.

Figur 2e zeigt die Rotorronde in entsprechend der im Rotor-Nutautomat 6 konstanten Werkzeuglage angepaßten Stellung. Das fertige Rotorblech mit angedeuteten Umfangnuten ist in Figur 2f dargestellt. Der Winkel α entspricht der Rotornutteilung. FIG. 2e shows the rotor blank in the position adapted in accordance with the tool position which is constant in the rotor-grooving machine 6. The finished rotor plate with indicated circumferential grooves is shown in Figure 2f . The angle α corresponds to the rotor groove division.

Dieser Winkel α ist ungleich dem Teilungswinkel β des Statorbleches. Der Korrekturwinkel γ ist eine Funktion von α und β und je nach Betraggröße erfolgt die Korrektur im oder gegen den Uhrzeigersinn.This angle α is not equal to the pitch angle β of the stator plate. The correction angle γ is a function of α and β and, depending on the magnitude, the correction is carried out clockwise or counterclockwise.

Die eigentlich erfinderische Rotor-Zwischenausrichtung 5 zeigt Figur 3a. Das aus dem Stator-Nutautomat mit Hilfe des Transportsystems 8 und den Elektro-Magnetstäben 9 entnommene Stator-Rotorblech 14,15 wird auf die Stator-Ablegestation 4 abgelegt. Während des Einschwenkens des Transportsystems 8 ist die Stator-Abstoßeinrichtung 17 mit der Rotor-Zwischenausrichtung 5 durch Zylinder 19 aus dem Arbeitsbereich, zur Vermeidung einer Kollision, gefahren. Diese hochgefahrene Lage ist nicht näher dargestellt. Nach Ablegen des Stator-Rotorbleches 14,15 auf die Stator-Ablegestation 4 bewegt die Kolbenstange 20 des Zylinders 19 das ganze System 5, 17 abwärts bis die Abstoßstifte 18 auf dem Statorblech 14 und der Rotorhalter 21 auf dem Rotorblech 15 aufsetzen. An dem Rotorhalter 21 sind Elektro-Magnete 22 befestigt, wodurch eine sichere Übernahme des Rotorbleches nach Abschaltung der Elektro-Magnetstäbe 9 garantiert ist. Die gesamte Einrichtung 5, 17 ist über den Halter 27 ortsfest mit der Nutanlage verbunden.The actually inventive intermediate rotor alignment 5 is shown in FIG. 3a. The stator rotor plate 14, 15, which is removed from the stator slot machine with the aid of the transport system 8 and the electro-magnetic bars 9, is deposited on the stator depositing station 4. While the transport system 8 is being pivoted in, the stator repulsion device 17 with the intermediate rotor alignment 5 is moved out of the working area by cylinders 19 to avoid a collision. This raised position is not shown in detail. After the stator rotor plate 14, 15 has been placed on the stator laying station 4, the piston rod 20 of the cylinder 19 moves the entire system 5, 17 downward until the push-off pins 18 touch the stator plate 14 and the rotor holder 21 on the rotor plate 15. Electro magnets 22 are fastened to the rotor holder 21, whereby a safe takeover of the rotor plate after switching off the electro magnetic bars 9 is guaranteed. The entire device 5, 17 is fixedly connected to the slot system via the holder 27.

Zylinder 23 fährt um das Maß "a" abwärts und durch die Abstoßstifte 18 , die über eine Brücke 24 mit dem Zylinder 23 verbunden sind, wird das Statorblech abgestoßen. Die Magnetstäbe 9 fahren um einen geringen Betrag, z.B. 4 mm hoch. Diese Stituation ist in Figur 3b dargestellt.Cylinder 23 moves downward by the dimension "a" and the stator plate is repelled by the push-off pins 18, which are connected to the cylinder 23 by a bridge 24. The magnetic bars 9 move a small amount, for example 4 mm high. This situation is shown in Figure 3b .

Figur 3c zeigt die Verschwenkung des Rotorbleches um den geforderten Winkel γ . Zu diesem Zweck fährt Zylinder 25 um den Betrag "b" hoch, wodurch auch das Rotorblech um diesen Betrag angehoben wird. Der Zylinder 25 steht in Wirkverbindung mit dem Rotorhalter 21, wie in der Figur 3c prinzipiell angedeutet. Das Verschwenken um den Winkel γ führt die Schwenkeinrichtung 26 durch. Figure 3c shows the pivoting of the rotor plate by the required angle γ. For this purpose, cylinder 25 moves up by the amount "b", whereby the rotor plate is also raised by this amount. The cylinder 25 is operatively connected to the rotor holder 21, as indicated in principle in FIG. 3c. The pivoting device 26 pivots by the angle γ.

Anschließend wird das Rotorblech wieder von dem Transportsystem 8 und den Elektro-Magnetstäben 9 übernommen und die Stator-Abstoßeinrichtung 17 mit der Rotor-Zwischenausrichtung 5 wird durch die Kolbenstange 20 in Verbindung mit dem Zylinder 19 aus dem Störbereich des Transportsystems gefahren.The rotor plate is then taken over again by the transport system 8 and the electro-magnetic bars 9 and the stator repulsion device 17 with the intermediate rotor alignment 5 is moved out of the interference area of the transport system by the piston rod 20 in connection with the cylinder 19.

Das Transportsystem legt nun lagegerecht das Rotorblech in den Rotor-Nutautomat 6 ein und nach erfolgter Nutung wird das fertige Rotorblech zur Rotor-Ablegestation transportiert.The transport system now places the rotor plate in the correct position in the rotor grooving machine 6 and after the grooving has been carried out, the finished rotor plate is transported to the rotor laying station.

Claims (9)

Nutenstanzanlage zum Stanzen von Rotor- und Statorblechen für elektrische Maschinen, bestehend aus Blechronden, bei welcher der Transport zwischen den einzelnen Bearbeitungsstationen mittels Transportarmen o. dgl. erfolgt, wobei in einer ersten Nutenstanzstation die Nutenherstellung zum Beispiel des Statorbleches mit einer Trennung des Rotor- und Statorbleches erfolgt und in einer zweiten Nutenstanzstation z.B. die Nuten des Rotorbleches herstellbar sind, dadurch gekennzeichnet, daß in einer, zwischen der ersten und zweiten Bearbeitungsstation (3, 6) angeordneten Zwischenstation (4) eine Werkstück- insbesondere Rotor-Ausrichteinrichtung (5) vorgesehen ist, mittels welcher das Werkstück zur Vorbereitung des nachfolgenden Nutenstanzvorganges lagegerecht positioniert wird.Slot punching system for punching rotor and stator sheets for electrical machines, consisting of sheet blanks, in which the transport between the individual processing stations is carried out by means of transport arms or the like, the slot production in a first slot punching station, for example, the stator sheet with a separation of the rotor and Stator sheets are made and in a second slot punching station, for example the grooves of the rotor plate can be produced, characterized in that a workpiece, in particular rotor alignment device (5) is provided in an intermediate station (4) arranged between the first and second processing stations (3, 6), by means of which the workpiece for preparing the subsequent groove punching process is positioned correctly. Stanzanlage nach Anspruch 1, dadurch gekennzeichnet, daß die Rotor-Ausrichteinrichtung (5) eine Stator-Abstoßeinrichtung (17) umfaßt, wobei über eine höhenverstellbare Kolben/Zylindereinheit (23) ein Abstoßen des Statorbleches (14) bewirkt wird.Punching system according to claim 1, characterized in that the rotor alignment device (5) comprises a stator repulsion device (17), wherein the stator plate (14) is repelled by means of a height-adjustable piston / cylinder unit (23). Stanzanlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Rotor-Ausrichteinrichtung eine Stator-Abstoßeinrichtung (17) umfaßt, die mittels einer Kolben-Zylindereinheit (19, 20) ein Absenken der Rotor-Ausrichteinrichtung (5) auf das Stator-Rotorblech (14, 15) bewirkt.Stamping system according to Claim 1 or 2, characterized in that the rotor alignment device comprises a stator repulsion device (17) which, by means of a piston-cylinder unit (19, 20), lowers the rotor alignment device (5) onto the stator rotor plate ( 14, 15) causes. Stanzanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Rotor-Ausrichteinrichtung (5) über eine Kolben-Zylinderanordnung (25) um ein Maß "b" anhebbar ist, wobei das Rotorblech (15) mittels eines Rotorhalters (21) und gegebenenfalls über Elektromagnete (22) greifbar ist und daß mittels einer dem Rotorhalter (21) zugeordneter Schwenkeinrichtung (26) eine Winkelverschwenkung des Rotorblechs um einen vorgegebenen Winkel γ einstellbar ist.Punching system according to one of the preceding claims, characterized in that the rotor alignment device (5) can be raised by a dimension "b" by means of a piston-cylinder arrangement (25), the rotor plate (15) using a rotor holder (21) and optionally via Electromagnets (22) can be gripped and that an angular pivoting of the rotor plate by a predetermined angle γ can be set by means of a pivoting device (26) assigned to the rotor holder (21). Stanzanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichneet, daß die Rotor-Ausrichteinrichtung (5) über eine Kolbenstange (20) mit der Stator-Abstoßeinrichtung (17) verbunden ist, wobei die Kolbenstange (20) eine Aufwärtsbewegung der Rotor-Ausrichteinrichtung (5) aus der Transportzone bewirkt.Punching system according to one of the preceding claims, characterized in that the rotor alignment device (5) is connected to the stator repulsion device (17) via a piston rod (20), the piston rod (20) causing the rotor alignment device (5) to move upwards. effected from the transport zone. Stanzanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stator-Abstoßeinrichtung (17) über eine Halterung (27) ortsfest mit der Nutanlage verbunden ist.Punching system according to one of the preceding claims, characterized in that the stator repelling device (17) is connected in a stationary manner to the slot system via a holder (27). Stanzanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stator-Abstoßeinrichtung (17) einen ersten Zylinder (19) mit Kolbenstange (20) umfaßt, zur Durchführung einer Hubbewegung aus dem Arbeitsbereich des Werkstücktransportes und das eine zweite Zylindereinheit (25) vorgesehen ist, die eine Hubbewegung "b" der Kolbenstange (20) und damit der Rotor-Ausrichteinrichtung (5) durchführt, zur Anhebung des Rotorblechs (15).Punching system according to one of the preceding claims, characterized in that the stator repulsion device (17) comprises a first cylinder (19) with a piston rod (20) for carrying out a lifting movement from the work area of the workpiece transport and a second cylinder unit (25) is provided , which carries out a lifting movement "b" of the piston rod (20) and thus the rotor alignment device (5), to raise the rotor plate (15). Stanzanlage nach einem der folgenden Ansprüche, dadurch gekennzeichnet, daß die Kolbenstange (20) mit einer Zylindereinheit (23) mit zugehörigem Kolben verbunden ist, der eine Hubbewegung um den Betrag "a" durchführt, die über eine Brücke (24) auf Ausstoßstifte (18) übertragbar ist, zur Trennung von Statorblech (14) vom Rotorblech (15).Punching system according to one of the following claims, characterized in that the piston rod (20) is connected to a cylinder unit (23) with an associated piston, which carries out a lifting movement by the amount "a", which is passed via a bridge (24) to ejection pins (18 ) is transferable, for separating the stator plate (14) from the rotor plate (15). Stanzanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Kolbenstange der Kolbenzylindereinheit (23) über eine im Querschnitt U-förmige Halterung mit dem Rotorhalter (21) verbunden ist, wobei die U-förmige Halterung eine Schwenkeinrichtung (26) zur Durchführung der Schwenkbewegung des Rotorhalters (21) mit Rotorblech (15) aufnimmt.Punching system according to one of the preceding claims, characterized in that the piston rod of the piston-cylinder unit (23) is connected to the rotor holder (21) via a cross-sectionally U-shaped holder, the U-shaped holder being a swivel device (26) for carrying out the swivel movement of the rotor holder (21) with the rotor plate (15).
EP95102307A 1994-03-03 1995-02-18 Notching installation with an intermediate alignment of rotor sheets Expired - Lifetime EP0674957B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4406939A DE4406939A1 (en) 1994-03-03 1994-03-03 Grooving machine with intermediate rotor alignment
DE4406939 1994-03-03

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EP0674957A1 true EP0674957A1 (en) 1995-10-04
EP0674957B1 EP0674957B1 (en) 1999-08-04

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Application Number Title Priority Date Filing Date
EP95102307A Expired - Lifetime EP0674957B1 (en) 1994-03-03 1995-02-18 Notching installation with an intermediate alignment of rotor sheets

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EP (1) EP0674957B1 (en)
DE (2) DE4406939A1 (en)
ES (1) ES2136216T3 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1552035A1 (en) * 1966-10-17 1969-07-03 Weingarten Ag Maschf Automatic slot punching machine with alignment station
DE1602574B2 (en) * 1967-12-29 1971-09-23 L. Schuler GmbH, 7320 Göppingen Stacking device on a grooving punch
DE2236161A1 (en) * 1972-07-22 1974-01-31 Brow Boveri & Cie Ag Armature stampings - produced from cold-rolled sheet metal rounds with a notching press
DE2632382A1 (en) * 1976-07-19 1978-01-26 Schuler Gmbh L Sheet disc and ring punching plant - has intermediary ring conveyor connected to separating station for individual handling
DE2733353A1 (en) * 1977-07-23 1979-02-08 Schuler Gmbh L Alignment and transfer head for slot press - has rotating disc for plates aligned by pin and mandrel
DE3249402A1 (en) * 1982-11-11 1984-05-17 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Notching installation
DE3841926A1 (en) * 1987-12-18 1989-06-29 Elin Union Ag Apparatus for punching stator and/or rotor laminations for electric machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1552036A1 (en) * 1966-10-17 1969-07-03 Weingarten Ag Maschf Automatic system for the production of grooved sheet metal
DE2751123A1 (en) * 1977-11-16 1979-05-17 Schuler Gmbh L DEVICE FOR PUNCHING CIRCULAR SQUARES

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1552035A1 (en) * 1966-10-17 1969-07-03 Weingarten Ag Maschf Automatic slot punching machine with alignment station
DE1602574B2 (en) * 1967-12-29 1971-09-23 L. Schuler GmbH, 7320 Göppingen Stacking device on a grooving punch
DE2236161A1 (en) * 1972-07-22 1974-01-31 Brow Boveri & Cie Ag Armature stampings - produced from cold-rolled sheet metal rounds with a notching press
DE2632382A1 (en) * 1976-07-19 1978-01-26 Schuler Gmbh L Sheet disc and ring punching plant - has intermediary ring conveyor connected to separating station for individual handling
DE2733353A1 (en) * 1977-07-23 1979-02-08 Schuler Gmbh L Alignment and transfer head for slot press - has rotating disc for plates aligned by pin and mandrel
DE3249402A1 (en) * 1982-11-11 1984-05-17 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Notching installation
DE3841926A1 (en) * 1987-12-18 1989-06-29 Elin Union Ag Apparatus for punching stator and/or rotor laminations for electric machines

Also Published As

Publication number Publication date
DE4406939A1 (en) 1995-09-07
DE59506500D1 (en) 1999-09-09
ES2136216T3 (en) 1999-11-16
EP0674957B1 (en) 1999-08-04

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