EP0674957B1 - Installation pour encocher à une orientaton intermédiaire de tÔle de rotor - Google Patents

Installation pour encocher à une orientaton intermédiaire de tÔle de rotor Download PDF

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Publication number
EP0674957B1
EP0674957B1 EP95102307A EP95102307A EP0674957B1 EP 0674957 B1 EP0674957 B1 EP 0674957B1 EP 95102307 A EP95102307 A EP 95102307A EP 95102307 A EP95102307 A EP 95102307A EP 0674957 B1 EP0674957 B1 EP 0674957B1
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
notching
sheet
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.)
Expired - Lifetime
Application number
EP95102307A
Other languages
German (de)
English (en)
Other versions
EP0674957A1 (fr
Inventor
Günter Neher
Manfred Bülow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mueller Weingarten AG
Original Assignee
Mueller Weingarten AG
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 Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP0674957A1 publication Critical patent/EP0674957A1/fr
Application granted granted Critical
Publication of EP0674957B1 publication Critical patent/EP0674957B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 manufacturing of stator and rotor sheets with a device for Interim alignment of the rotor in the stator laydown station.
  • DE-A-38 41 926 and in DE-A-32 49 402 describes the manufacturing process in detail.
  • the slot punching system according to the preamble of claim 1 is the DE-A-26 32 382.
  • 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-A-38 41 926 has the actual groove and separating cut to content, while DE-A-32 49 402 deals with the Round transport busy and a solution to the central Setting the electro-magnetic bars to different Disc diameter shows.
  • Axle hole Before the blanks are punched in the grooving machine, a precise hole is made in the center, the so-called Axle hole. This hole is used for receiving and Centering the blank during machining in the slot punching system.
  • one or more grooves are introduced into the round blank. These grooves, hereinafter referred to as fixing grooves, must be in a precise location to the actually on the slot system generating stator and rotor slots. Positional deviations are only permitted in ⁇ m and the aim is a value of corresponds to the ideal deviation value of 0 mm. Instead of fixing grooves are other types, e.g. Drilling possible.
  • the object of the invention is a tool-independent To create facility in which all technically meaningful Arrangements and numbers of fixing, stator and rotor slots can be positioned to each other. Where these Device preferred for grooving with mechanically driven Sub-device is used.
  • This task is based on a slot punching machine the preamble of claim 1 by the characterizing Features of claim 1 solved.
  • the inventive device for intermediate alignment Rotorronde pursues the idea of being completely flexible Handling this blank to adapt to an unchangeable Tool position.
  • the basic idea of the invention is, for example, in the stator staging station into the stator push-off device with simple Means to integrate a facility through a precisely defined angular swiveling of the rotor blank, which for the next punching operation sets the required position.
  • This swiveling takes place via a rotary drive e.g. With Angle of rotation encoder (program-controlled) or with fixed stops.
  • the big advantage is that it is much simpler Execution of the rotor punching tools, which are no longer the are adapted to each slot position and are much more universal can be used for different rotors and useful numbers are.
  • 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 removal station 4 with rotor alignment device 5, a rotor slot machine 6 and a rotor removal 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 has a precisely defined position with respect to the following stator groove on the automatic slot machine 3 and 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 not grooved rotor plate 15 must now be rotated through the angle ⁇ by the rotor alignment device 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 sheets.
  • the correction angle ⁇ is a function The correction is made for ⁇ and ⁇ and depending on the amount clockwise or counterclockwise.
  • the actually inventive rotor alignment device 5 shows Figure 3a. That from the stator slot machine with the help of the transport system 8 and the electro-magnetic bars 9 removed Stator rotor plate 14, 15 is placed on the stator depositing station 4 filed. During the pivoting of the transport system 8 is the stator repulsion device 17 with the rotor alignment device 5 by cylinder 19 from the work area, to avoid a collision. This booted up Location is not shown. After removing the stator rotor plate 14, 15 on the stator laying station 4 moves the Piston rod 20 of the cylinder 19 down the entire system 5, 17 until the push pins 18 on the stator 14 and the Place the rotor holder 21 on the rotor plate 15.
  • electro-magnets 22 are attached, thereby creating a Safe takeover of the rotor plate after switching off the Electro magnetic bars 9 is guaranteed.
  • the entire facility 5, 17 is connected in a fixed manner to the groove 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 removed from the transport system 8 and the electro-magnetic rods 9 and the Stator repulsion device 17 with the rotor alignment device 5 is through the piston rod 20 in connection with the cylinder 19 moved out of the interference area of the transport system.
  • the transport system now places the rotor plate in the correct position Rotor-Groove 6 on and after grooving it will finished rotor plate transported to the rotor placement station.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Claims (9)

  1. Installation de découpe d'encoches destinée à la découpe de tôles statoriques et rotoriques pour machines électriques, constituées de flans circulaires en tôle, dans le cas de laquelle le transport entre les différents postes d'usinage est effectué au moyen de bras de transport ou analogues, les encoches de la tôle statorique étant effectuées dans un premier poste de découpe d'encoches avec une séparation des tôles statorique et rotorique, et les encoches de la tôle rotorique pouvant être réalisées dans un deuxième poste de découpe d'encoches, caractérisée en ce qu'un dispositif d'alignement (5) de rotor est prévu dans un poste intermédiaire (4) disposé entre les premier et deuxième postes d'usinage (3, 6), au moyen duquel la pièce à usiner est exactement positionnée dans le but de préparer le processus de découpe d'encoches suivant.
  2. Installation de découpe selon la revendication 1, caractérisée en ce que le dispositif d'alignement (5) de rotor comporte un dispositif d'écartement (17) de stator, le repoussage de la tôle statorique (14) étant effectué par l'intermédiaire d'un vérin (23) pouvant être déplacé en hauteur.
  3. Installation de découpe selon la revendication 1 ou 2, caractérisée en ce que le dispositif d'alignement de rotor comporte un dispositif d'écartement (17) de stator, qui provoque un abaissement du dispositif d'alignement (5) de rotor sur les tôles statorique et rotorique (14, 15) au moyen d'un vérin (19, 20).
  4. Installation de découpe selon l'une des revendications précédentes, caractérisée en ce que le dispositif d'alignement (5) de rotor peut être soulevé d'une valeur "b" par l'intermédiaire d'un vérin (25), la tôle rotorique (15) pouvant être saisie au moyen d'une retenue rotorique (21), et le cas échéant par l'intermédiaire d'électroaimants (22), et en ce qu'un pivotement angulaire de la tôle rotorique suivant un angle γ prédéterminé est réglable au moyen d'un dispositif de pivotement (26) associé à la retenue rotorique (21).
  5. Installation de découpe selon l'une des revendications 2 ou 3, caractérisée en ce que le dispositif d'alignement (5) de rotor est relié au dispositif d'écartement (17) de stator par l'intermédiaire d'une tige de piston (20), la tige de piston (20) déplaçant le dispositif d'alignement (5) de rotor vers le haut hors de la zone de transport.
  6. Installation de découpe selon l'une des revendications 2, 3 ou 5, caractérisée en ce que le dispositif d'écartement (17) de stator est relié de façon stationnaire à l'installation de découpe d'encoches par l'intermédiaire d'une retenue (27).
  7. Installation de découpe selon l'une des revendications 2, 3, 5 ou 6, caractérisée en ce que le dispositif d'écartement (17) de stator comporte un premier vérin (19) avec une tige de piston (20), destinée à effectuer un mouvement de levage hors de la zone de travail du transport de la pièce à usiner, et en ce qu'il est prévu un deuxième vérin (25) qui effectue un mouvement de levage "b" de la tige de piston (20), et par conséquent du dispositif d'alignement (5) de rotor, afin de soulever la tôle rotorique (15).
  8. Installation de découpe selon la revendication 5, caractérisée en ce que la tige de piston (20) est reliée à un vérin (23) comportant un piston associé, qui effectue un mouvement de levage de valeur "a" pouvant être transmis à des broches d'écartement (18) par l'intermédiaire d'un pont (24) afin de séparer la tôle statorique (14) de la tôle rotorique (15).
  9. Installation de découpe selon les revendications 2 et 4, caractérisée en ce que la tige de piston du vérin (23) est reliée à la retenue rotorique (21) par une retenue ayant une section transversale en forme de U, la retenue en forme de U servant de réceptacle à un dispositif de pivotement (26) qui assure le mouvement de pivotement de la retenue rotorique (21) avec la tôle rotorique (15).
EP95102307A 1994-03-03 1995-02-18 Installation pour encocher à une orientaton intermédiaire de tÔle de rotor Expired - Lifetime EP0674957B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4406939 1994-03-03
DE4406939A DE4406939A1 (de) 1994-03-03 1994-03-03 Nutenstanzanlage mit Rotor-Zwischenausrichtung

Publications (2)

Publication Number Publication Date
EP0674957A1 EP0674957A1 (fr) 1995-10-04
EP0674957B1 true EP0674957B1 (fr) 1999-08-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102307A Expired - Lifetime EP0674957B1 (fr) 1994-03-03 1995-02-18 Installation pour encocher à une orientaton intermédiaire de tÔle de rotor

Country Status (3)

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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1552036A1 (de) * 1966-10-17 1969-07-03 Weingarten Ag Maschf Automatische Anlage zum Herstellen von genuteten Blechen
DE1552035A1 (de) * 1966-10-17 1969-07-03 Weingarten Ag Maschf Automatische Nutenstanzmaschine mit Ausrichtstation
DE1602574B2 (de) * 1967-12-29 1971-09-23 L. Schuler GmbH, 7320 Göppingen Stapelvorrichtung an einer Nutenstanze
DE2236161A1 (de) * 1972-07-22 1974-01-31 Brow Boveri & Cie Ag Verfahren zur herstellung von blechpaketen elektrischer maschinen
DE2632382C3 (de) * 1976-07-19 1981-02-05 L. Schuler Gmbh, 7320 Goeppingen Nutautomat zum Stanzen von jeweils zwei Blechen aus einer Ronde
DE2733353C2 (de) * 1977-07-23 1986-11-27 L. Schuler GmbH, 7320 Göppingen Ausricht- und Verdrehstation für Nutenstanzautomaten
DE2751123A1 (de) * 1977-11-16 1979-05-17 Schuler Gmbh L Einrichtung zum stanzen von kreisfoermigen platinen
DE3249402C2 (de) * 1982-11-11 1987-01-22 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Zuführvorrichtung für Platinen zu einer Nutenstanzanlage
AT388520B (de) * 1987-12-18 1989-07-25 Elin Union Ag Vorrichtung zum stanzen von staender- und/oder laeuferblechen fuer elektrische maschinen

Also Published As

Publication number Publication date
DE4406939A1 (de) 1995-09-07
DE59506500D1 (de) 1999-09-09
EP0674957A1 (fr) 1995-10-04
ES2136216T3 (es) 1999-11-16

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