EP1301717A1 - Method for producing a mechanical link - Google Patents

Method for producing a mechanical link

Info

Publication number
EP1301717A1
EP1301717A1 EP01953820A EP01953820A EP1301717A1 EP 1301717 A1 EP1301717 A1 EP 1301717A1 EP 01953820 A EP01953820 A EP 01953820A EP 01953820 A EP01953820 A EP 01953820A EP 1301717 A1 EP1301717 A1 EP 1301717A1
Authority
EP
European Patent Office
Prior art keywords
connecting element
workpiece
another
inner part
edge
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.)
Withdrawn
Application number
EP01953820A
Other languages
German (de)
French (fr)
Inventor
Christoph Heier
Juergen Bassler
Stefan Boell
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1301717A1 publication Critical patent/EP1301717A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
    • B21C37/108—Making tubes with riveted seams or with non-welded and non-soldered seams without continuous longitudinal movement of the sheet during the bending operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/17—Stator cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4966—Deformation occurs simultaneously with assembly

Definitions

  • the invention is based on a method for producing a mechanical connection according to the preamble of claim 1.
  • flare connections are known in which two workpieces are first inserted into one another in such a way that one workpiece is supported against a stop of the other and projects over this with an edge, the flanged edge.
  • the connection is carried out by folding, flanging, the flanging edge onto the one workpiece, so that the workpieces are joined in a form-fitting manner.
  • two workpieces are required and it is difficult to achieve a defined contour of the flanged edge.
  • a flanged edge must often be present all the way around a workpiece.
  • dovetail connections are also known, in which tolerances have to be kept very narrow.
  • a head part and a recess of the dovetail connection are placed one above the other and then pressed into one another, as described in DE 39 25 365 AI.
  • the parts must be there are placed one on top of the other and are not pushed into one another, so that the parts to be connected are designed to be somewhat longer and the tolerance, for example of an inner diameter of a tubular element, is greater.
  • connection method for a metal strip in which a tongue is caulked into a depression.
  • a voluminous tool and high forces are required to carry out the caulking.
  • a snap connection which consists of a tongue and a recess.
  • the tongue and the recess are pushed into each other to make a connection.
  • the areas around the recess are designed to be elastic so that they can widen and spring back when the tongue and recess are pushed together.
  • the method according to the invention for producing a mechanical connection with the characterizing features of claim 1 has the advantage that at least two sections of a workpiece are connected to one another in a simple manner and tolerances of the at least one workpiece do not have to be kept very closely.
  • the method steps or measures listed in the dependent claims allow advantageous developments and improvements of the method mentioned in claim 1 for producing a mechanical connection and the connection thus produced.
  • the connecting element has a centering element, because this makes assembly easier and / or centering is facilitated.
  • An advantageous embodiment of the connecting element arises from the fact that there is no radial and or axial projection on the workpiece.
  • the connecting element can be used advantageously for a tubular element if the tubular element is fastened to an inner part by the action of the connecting element and this inner part has two short guide lengths.
  • FIG. 2a, b show a connecting element and an inner part with short guide lengths
  • FIG. 3 shows a possibility of mounting the connecting element. Description of the embodiments
  • FIG. 1 a shows a connecting element 1 which can connect a first workpiece 5 and, for example, a second workpiece 6 to one another.
  • the two workpieces 5, 6 can also be sections of a workpiece 7, e.g. a tubular element 7 bent from a rectangular sheet metal strip.
  • One end 10 of the first workpiece 5 and one end 11 of the second workpiece 6 correspond to a modified dovetail contour 14 and form the connecting element 1.
  • the arrows 18 show, for example, the direction in which the ends 10, 11 are inserted into one another.
  • the ends 10, 11 are pushed into one another, for example, until the ends 10, 11 touch and are supported against one another. However, this is not absolutely necessary.
  • the workpieces 5, 6, 7 have a longitudinal or center line 16 which, for example, runs centrally through the centering element 24.
  • the end 11 has a projection and the end 10 has a corresponding recess into which the projection is inserted with the least possible play, if, for example, centering is required.
  • the workpiece 5, 7 and the workpiece 6, 7 each have outer boundary lines 64, 66, which are shown here in dashed lines, and which continue in a straight line beyond the ends 10, 11. Lines 64, 66 do not run approximately parallel to one another if the mechanical connection has not yet been established. If the ends 10, 11 or two workpieces 5, 6 are inserted into one another, then at least one existing edge 27 of a workpiece 6, which projects beyond the other workpiece 5, acts by means of a force F in a certain direction, which is indicated by the arrows 21 is curved.
  • the dovetail-like contour 14 is formed, for example, at the end 10 by a head part 49, which is followed by a constricted neck section 53.
  • the end 11 is provided with a depression 57, which is delimited, for example, on both sides by an edge 27.
  • the free ends of the edges 27, which are pulled slightly outwards from the trough 57, are directed towards one another.
  • Lugs 61 are provided, between which the head part 49 can be pushed into the trough 57.
  • the lugs 61 have a contour such that they engage in the neck section 53 after the application of the force F.
  • the centering element 24 is provided in the head part 49 or in the depression 57.
  • FIG. 1b The workpieces 5, 6 connected to one another in accordance with the method according to the invention are shown in FIG. 1b.
  • the ends 10, 11 are supported against one another in this exemplary embodiment.
  • the connecting element 1 is, for example, designed such that there is no radial and / or no axial protrusion and the workpieces 5, 6 are connected to one another in a form-fitting manner.
  • the boundary line 64, 66 now run approximately parallel to one another.
  • the dovetail-like contour 14 is designed, for example, in such a way that tensile stress is exerted on the two workpieces 5, 6 in the circumferential direction when the edge 27 is bent.
  • Figure 2a shows the tubular element 7 in the open state. In this state it has a larger inner diameter than the largest outer diameter of an inner part 30, so that the tubular element 7 can be pushed over the inner part 30.
  • the tubular element 7 is guided by, for example, two radially projecting guide lengths 33 of the inner part 30.
  • the connecting element 1 is closed, the tubular element 7 lies tightly against the guide lengths 33 and is thereby fastened on the inner part 30 (FIG. 2b).
  • Figure 2b shows how the tubular element 7 is attached to the inner part 30.
  • the inner part 30 has, for example, two short guide lengths 33. Briefly here means that a contact length in the axial direction of the tubular element 7 with the inner part 30 is significantly shorter than an axial length of the inner part 30. However, the contact length can also cover the entire axial length of the inner part 30 correspond.
  • the inner part 30 is, for example, a coil body, for example for a stator of an electric motor, which has a coil space 38, in which, for example, a coil (not shown) is wound.
  • the tubular element 7 forms, for example, a magnetic yoke element. In the case of a positive connection, the magnetic flux lines in the return element can run from end 10 to end 11 without great magnetic resistance.
  • FIG. 3 shows how, for example, a tubular element 7 in the open state can be pushed over an inner part 30, which has areas with two different outer diameters dg and dk, in an insertion direction, indicated by an arrow 42.
  • the diameter dg is larger than the diameter dk and the area with the outside diameter dk is surrounded by areas which have a larger outside diameter.
  • the tubular element 7 can thus dk on the inner part 30 in the region of the smaller outer diameter are attached without the ends of the tubular element 7 having to be widened such that the distance between the ends (10, 11) corresponds to that of the outside diameter dk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Connection Of Plates (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

According to prior art, methods for producing mechanical links allow for only minor amounts of tolerance or require considerable expenditure for the production thereof. The inventive method for producing a mechanical link dispenses with the above-mentioned disadvantages and creates a mechanical link consisting of ends (10, 11) which are joined to each other in a dovetail-type manner.

Description

Verfahren zur Herstellung einer mechanischen VerbindungProcess for making a mechanical connection
Stand der TechnikState of the art
Die Erfindung geht aus von einem Verfahren zur Herstellung einer mechanischen Verbindung nach der Gattung des Anspruchs 1.The invention is based on a method for producing a mechanical connection according to the preamble of claim 1.
Es sind sogenannte Bördelverbindungen bekannt, bei denen zwei Werkstücke zunächst so ineinander gesteckt werden, dass das eine Werkstück sich gegen einen Anschlag des anderen stützt und dieses mit einem Rand, dem Bördelrand, überragt. Das Verbinden wird durch Umlegen, dem Bördeln, des Bördelrands auf das eine Werkstück durchgeführt, so dass die Werkstücke formschlüssig gefügt sind.' Bei dieser Art von Verbindung sind zwei Werkstücke erforderlich und es lässt sich nur aufwendig eine definierte Kontur des umgelegten Bördelrands erreichen. Ein Bördelrand muss oft ganz umlaufend um ein Werkstück vorhanden sein.So-called flare connections are known in which two workpieces are first inserted into one another in such a way that one workpiece is supported against a stop of the other and projects over this with an edge, the flanged edge. The connection is carried out by folding, flanging, the flanging edge onto the one workpiece, so that the workpieces are joined in a form-fitting manner. ' With this type of connection, two workpieces are required and it is difficult to achieve a defined contour of the flanged edge. A flanged edge must often be present all the way around a workpiece.
Weiterhin bekannt sind sogenannte Schwalbenschwanz- Verbindungen, bei denen Toleranzen sehr eng gehalten werden müssen. Beim Verbindungsprozess werden ein Kopfteil und eine Aussparung der Schwalbenschwanz-Verbindung übereinander gelegt und anschliessend ineinander gepresst, wie es in der DE 39 25 365 AI beschrieben ist. Die Teile müssen dabei übereinandergelegt werden und werden nicht ineinander geschoben, so dass die zu verbindenden Teile etwas länger auszubilden sind und die Toleranz, z.B. eines Innendurchmessers eines Rohrelements, grösser ist.So-called dovetail connections are also known, in which tolerances have to be kept very narrow. In the connection process, a head part and a recess of the dovetail connection are placed one above the other and then pressed into one another, as described in DE 39 25 365 AI. The parts must be there are placed one on top of the other and are not pushed into one another, so that the parts to be connected are designed to be somewhat longer and the tolerance, for example of an inner diameter of a tubular element, is greater.
Aus der DE 38 15 927 AI ist eine Verbindung von Formteilen durch elastische Haltearme bekannt. Bei dieser Ausgestaltung entstehen jedoch zwangsläufig Lücken zwischen den Formteilen. Ein lückenloser Übergang zwischen den Formteilen ist nicht möglich.From DE 38 15 927 AI a connection of molded parts by elastic holding arms is known. With this configuration, however, gaps inevitably arise between the molded parts. A seamless transition between the molded parts is not possible.
Aus der US-PS 2,283,918 ist eine Verbindungsmethode für ein Metallband bekannt, bei der eine Zunge in eine Vertiefung verstemmt wird. Um die Verstemmung durchzuführen, sind ein voluminöses Werkzeug und hohe Kräfte notwendig.From US-PS 2,283,918 a connection method for a metal strip is known, in which a tongue is caulked into a depression. A voluminous tool and high forces are required to carry out the caulking.
Aus der US-PS 3,502,922 ist eine Rastverbindung bekannt, die aus einer Steckzunge und einer Vertiefung besteht. Die Steckzunge und die Vertiefung werden, um eine Verbindung herzustellen, ineinander geschoben. Dabei sind die Bereiche um die Vertiefung elastisch ausgelegt, damit sie sich beim Ineinanderschieben von Steckzunge und Vertiefung weiten und wieder zurückfedern können.From US-PS 3,502,922 a snap connection is known, which consists of a tongue and a recess. The tongue and the recess are pushed into each other to make a connection. The areas around the recess are designed to be elastic so that they can widen and spring back when the tongue and recess are pushed together.
Vorteile der ErfindungAdvantages of the invention
Das erfindungsge ässe Verfahren zur Herstellung einer mechanischen Verbindung mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, dass auf einfache Art und Weise zumindest zwei Abschnitte eines Werkstücks miteinander verbunden werden und Toleranzen des zumindest einen Werkstücks nicht sehr eng gehalten werden müssen. Durch die in den abhängigen Ansprüchen aufgeführten Verfahrensschritte bzw. Massnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 genannten Verfahrens zur Herstellung einer mechanischen Verbindung und der so hergestellten Verbindung möglich.The method according to the invention for producing a mechanical connection with the characterizing features of claim 1 has the advantage that at least two sections of a workpiece are connected to one another in a simple manner and tolerances of the at least one workpiece do not have to be kept very closely. The method steps or measures listed in the dependent claims allow advantageous developments and improvements of the method mentioned in claim 1 for producing a mechanical connection and the connection thus produced.
Weiterhin vorteilhaft ist es, dass das Verbindungselement ein Zentrierelement hat, weil dadurch die Montage erleichtert ist und/oder eine Zentrierung erleichtert ist.It is also advantageous that the connecting element has a centering element, because this makes assembly easier and / or centering is facilitated.
Eine vorteilhafte Ausbildung des Verbindungselements entsteht dadurch, dass kein radialer und oder axialer Überstand am Werkstück vorhanden ist.An advantageous embodiment of the connecting element arises from the fact that there is no radial and or axial projection on the workpiece.
Das Verbindungselement kann in vorteilhafter Weise für ein Rohrelement genutzt werden, wenn das Rohrelement auf einem Innenteil durch die Wirkung das Verbindungselement befestigt ist und dieses Innenteil zwei kurze Führungslängen hat.The connecting element can be used advantageously for a tubular element if the tubular element is fastened to an inner part by the action of the connecting element and this inner part has two short guide lengths.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nächfolgenden Beschreibung näher erläutert.Embodiments of the invention are shown in simplified form in the drawing and explained in more detail in the following description.
Es zeigenShow it
Figur la, lb ein Verbindungselement im offenen beziehungsweise verbundenen Zustand,Figure la, lb a connecting element in the open or connected state,
Figur 2a, b ein Verbindungselement und ein Innenteil mit kurzen Führungslängen, und Figur 3 eine Montagemöglichkeit des Verbindungselements . Beschreibung der Ausführungsbeispiele2a, b show a connecting element and an inner part with short guide lengths, and FIG. 3 shows a possibility of mounting the connecting element. Description of the embodiments
Figur la zeigt ein Verbindungselement 1, das ein erstes Werkstück 5 und bspw. ein zweites Werkstück 6 miteinander verbinden kann. Die zwei Werkstücke 5, 6 können auch Abschnitte eines Werkstücks 7, z.B. eines aus einem rechteckförmigen Blechstreifen gebogenen Rohrelements 7, sein.FIG. 1 a shows a connecting element 1 which can connect a first workpiece 5 and, for example, a second workpiece 6 to one another. The two workpieces 5, 6 can also be sections of a workpiece 7, e.g. a tubular element 7 bent from a rectangular sheet metal strip.
Ein Ende 10 des ersten Werkstücks 5 und ein Ende 11 des zweiten Werkstücks 6 entsprechen einer modifizierten Schwalbenschwanzkontur 14 und bilden das Verbindungselement 1.One end 10 of the first workpiece 5 and one end 11 of the second workpiece 6 correspond to a modified dovetail contour 14 and form the connecting element 1.
Die Pfeile 18 zeigen bspw., in welcher Richtung die Enden 10, 11 ineinander gesteckt werden. Die Enden 10, 11 werden beispielsweise soweit ineinander geschoben, bis sich die Enden 10, 11 berühren und gegeneinander abstützen. Dies ist aber nicht zwingend notwendig.The arrows 18 show, for example, the direction in which the ends 10, 11 are inserted into one another. The ends 10, 11 are pushed into one another, for example, until the ends 10, 11 touch and are supported against one another. However, this is not absolutely necessary.
Das zumindest eine Werkstück 5, 6, 7 hat bspw. weiterhin zumindest ein Zentrierelement 24, das an den Enden 10, 11 ausgebildet ist und/oder die Montage erleichtert. Die Werkstücke 5,6,7 haben eine Längs- bzw. Mittellinie 16, die bspw. mittig durch das Zentrierelement 24 verläuft. In diesem Ausführungsbeispiel hat zur Bildung des Zentrierelements 24 das Ende 11 einen Vorsprung und das Ende 10 eine entsprechende Vertiefung, in die der Vorsprung mit möglichst geringem Spiel hineingeführt wird, wenn bspw. eine Zentrierung erforderlich ist.The at least one workpiece 5, 6, 7, for example, also has at least one centering element 24, which is formed at the ends 10, 11 and / or facilitates assembly. The workpieces 5, 6, 7 have a longitudinal or center line 16 which, for example, runs centrally through the centering element 24. In this exemplary embodiment, to form the centering element 24, the end 11 has a projection and the end 10 has a corresponding recess into which the projection is inserted with the least possible play, if, for example, centering is required.
Das Werkstück 5,7 und das Werkstück 6,7 haben jeweils äussere Begrenzungslinien 64, 66, die hier gestrichelt gezeichnet sind, und die geradlinig fortgesetzt über die Enden 10, 11 hinaus verlaufen. Die Linien 64, 66 verlaufen nicht annähernd parallel zueinander, wenn die mechanische Verbindung noch nicht hergestellt ist. Sind die Enden 10, 11 oder zwei Werkstücke 5, 6 ineinander gesteckt, so wird zumindest ein vorhandener Rand 27 eines Werkstücks 6, der das andere Werkstück 5 überragt, mittels einer Kraft F, wirkend in eine bestimmte Richtung, die durch die Pfeile 21 gekennzeichnet ist, verbogen.The workpiece 5, 7 and the workpiece 6, 7 each have outer boundary lines 64, 66, which are shown here in dashed lines, and which continue in a straight line beyond the ends 10, 11. Lines 64, 66 do not run approximately parallel to one another if the mechanical connection has not yet been established. If the ends 10, 11 or two workpieces 5, 6 are inserted into one another, then at least one existing edge 27 of a workpiece 6, which projects beyond the other workpiece 5, acts by means of a force F in a certain direction, which is indicated by the arrows 21 is curved.
Die schwalbenschwanzähnliche Kontur 14 wird beispielsweise am Ende 10 gebildet durch ein Kopfteil 49, an das sich ein eingeschnürter Halsabschnitt 53 anschließt. Passend dazu ist das Ende 11 mit einer Mulde 57 versehen, die bspw. beiderseits von einem Rand 27 begrenzt wird. Die freien Enden der Ränder 27, die etwas nach außen von der Mulde 57 weggezogen sind, sind aufeinander zugerichtet. Nasen 61 sind vorgesehen, zwischen denen hindurch der Kopfteil 49 in die Mulde 57 geschoben werden kann. Die Nasen 61 haben eine solche Kontur, dass sie nach dem Aufbringen der Kraft F in den Halsabschnitt 53 passend eingreifen. Das Zentrierelement 24 ist im Kopfteil 49 bzw. in der Mulde 57 vorgesehen.The dovetail-like contour 14 is formed, for example, at the end 10 by a head part 49, which is followed by a constricted neck section 53. Appropriately, the end 11 is provided with a depression 57, which is delimited, for example, on both sides by an edge 27. The free ends of the edges 27, which are pulled slightly outwards from the trough 57, are directed towards one another. Lugs 61 are provided, between which the head part 49 can be pushed into the trough 57. The lugs 61 have a contour such that they engage in the neck section 53 after the application of the force F. The centering element 24 is provided in the head part 49 or in the depression 57.
Die nach dem erfindungsgemässen Verfahren so miteinander verbundenen Werkstücke 5, 6 sind in Figur lb abgebildet. Die Enden 10, 11 stützen sich in diesem Ausführungsbeispiel gegeneinander ab. Das Verbindungselement 1 ist bspw. so ausgebildet, dass kein radialer und/öder kein axialer Überstand vorhanden ist und die Werkstücke 5, 6 formschlüssig miteinander verbunden sind. Die Begrenzungslinie 64, 66 verlaufen jetzt annähernd parallel zueinander.The workpieces 5, 6 connected to one another in accordance with the method according to the invention are shown in FIG. 1b. The ends 10, 11 are supported against one another in this exemplary embodiment. The connecting element 1 is, for example, designed such that there is no radial and / or no axial protrusion and the workpieces 5, 6 are connected to one another in a form-fitting manner. The boundary line 64, 66 now run approximately parallel to one another.
Die schwalbenschwanzähnliche Kontur 14 ist dabei bspw. so gestaltet, dass es beim Verbiegen des Rands 27 zu einer Zugspannung auf die beiden Werkstücke 5, 6 in Umfangsrichtung kommt.The dovetail-like contour 14 is designed, for example, in such a way that tensile stress is exerted on the two workpieces 5, 6 in the circumferential direction when the edge 27 is bent.
Figur 2a zeigt das Rohrelement 7 im geöffneten Zustand. Es hat in diesem Zustand einen grösseren Innendurchmesser als der grosste Aussendurchmesser eines Innenteils 30, so dass das Rohrelement 7 ber das Innenteil 30 geschoben werden kann. Bei der Montage des Rohrelements 7 auf das Innenteil 30, wird das Rohrelement 7 von bspw. zwei radial überstehenden Fuhrungslangen 33 des Innenteils 30 gefuhrt. Wenn das Verbindungselement 1 geschlossen ist, liegt das Rohrelement 7 an den Fuhrungslangen 33 dicht an und ist dadurch auf dem Innenteil 30 befestigt (Fig. 2b) .Figure 2a shows the tubular element 7 in the open state. In this state it has a larger inner diameter than the largest outer diameter of an inner part 30, so that the tubular element 7 can be pushed over the inner part 30. When installing the tubular element 7 on the inner part 30, the tubular element 7 is guided by, for example, two radially projecting guide lengths 33 of the inner part 30. When the connecting element 1 is closed, the tubular element 7 lies tightly against the guide lengths 33 and is thereby fastened on the inner part 30 (FIG. 2b).
Figur 2b zeigt, wie das Rohrelement 7 auf dem Innenteil 30 befestigt ist. Das Innenteil 30 hat beispielsweise zwei kurze Fuhrungslangen 33. Kurz bedeutet hier, dass eine Beruhrungslange in axialer Richtung des Rohrelements 7 mit dem Innenteil 30 deutlich kurzer ist als eine axiale Lange des Innenteils 30. Die Beruhrungslange kann aber auch der gesamten axialen Lange des Innenteils 30 entsprechen.Figure 2b shows how the tubular element 7 is attached to the inner part 30. The inner part 30 has, for example, two short guide lengths 33. Briefly here means that a contact length in the axial direction of the tubular element 7 with the inner part 30 is significantly shorter than an axial length of the inner part 30. However, the contact length can also cover the entire axial length of the inner part 30 correspond.
Das Innenteil 30 ist beispielsweise ein Spulenkorper bspw. für einen Stator eines Elektromotors, der einen Spulenraum 38 hat, in den beispielsweise eine Spule (nicht gezeigt) gewickelt ist. Dabei bildet das Rohrelement 7 beispielsweise ein magnetisches Ruckschlusselement. Bei einer formschlussigen Verbindung können die magnetischen Flusslinien im Ruckschlusselement ohne grossen magnetischen Widerstand vom Ende 10 zum Ende 11 verlaufen.The inner part 30 is, for example, a coil body, for example for a stator of an electric motor, which has a coil space 38, in which, for example, a coil (not shown) is wound. The tubular element 7 forms, for example, a magnetic yoke element. In the case of a positive connection, the magnetic flux lines in the return element can run from end 10 to end 11 without great magnetic resistance.
Figur 3 zeigt, wie bspw. ein Rohrelement 7 im offenen Zustand ber ein Innenteil 30, das Bereiche mit zwei verschiedenen Aussendurch essern dg und dk hat, in einer Einsteckrichtung, gekennzeichnet durch einen Pfeil 42, geschoben werden kann. Der Durchmesser dg ist grosser als der Durchmesser dk und der Bereich mit dem Aussendurchmesser dk ist von Bereichen umgeben, die einen grösseren Aussendurchmesser haben. Das Rohrelement 7 kann so auf dem Innenteil 30 im Bereich des kleineren Aussendurchmessers dk befestigt werden, ohne dass die Enden des Rohrelements 7 so geweitet werden müssen, dass der Abstand zwischen den Enden (10,11) dem des Aussendurchmessers dk entspricht. FIG. 3 shows how, for example, a tubular element 7 in the open state can be pushed over an inner part 30, which has areas with two different outer diameters dg and dk, in an insertion direction, indicated by an arrow 42. The diameter dg is larger than the diameter dk and the area with the outside diameter dk is surrounded by areas which have a larger outside diameter. The tubular element 7 can thus dk on the inner part 30 in the region of the smaller outer diameter are attached without the ends of the tubular element 7 having to be widened such that the distance between the ends (10, 11) corresponds to that of the outside diameter dk.

Claims

Ansprüche Expectations
1. Verfahren zur Herstellung einer mechanischen Verbindung von zumindest einem Werkstück (5,6,7), insbesondere zumindest eines Bauelements eines Elektromotors, mit einem Verbindungselement (1) , das aus zwei Enden (10,11) besteht, die zumindest teilweise ineinandersteckbar und ähnlich einer Schwalbenschwanzkontur (14) ausgebildet sind, und ein Ende (10) das andere Ende (11) zumindest teilweise mit wenigstens einem Rand (27) überragt,1. A method for producing a mechanical connection of at least one workpiece (5, 6, 7), in particular at least one component of an electric motor, with a connecting element (1) which consists of two ends (10, 11) which can be at least partially inserted into one another are designed similar to a dovetail contour (14) and one end (10) at least partially projects over the other end (11) with at least one edge (27),
dadurch gekennzeichnet, dasscharacterized in that
zuerst die Enden (10,11) ineinander geschoben werden, bis sie sich höchstens gegeneinander abstützen, wobei der Rand (27) höchstens teilweise elastisch aufgebogen wird, und dann der wenigstens eine Rand (27) des einen Endes (11) durc eine Krafteinwirkung (21) zum anderen Ende (10) hin verbogen wird.first push the ends (10, 11) into each other until they are at most supported against each other, the edge (27) being at most partially bent up elastically, and then the at least one edge (27) of one end (11) by a force ( 21) is bent towards the other end (10).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass 2. The method according to claim 1, characterized in that
3. die Enden (10,11) formschlüssig miteinander verbunden werden.3. the ends (10, 11) are positively connected to one another.
4. Verbindungselement nach Anspruch 1, dadurch gekennzeichnet, dass4. Connecting element according to claim 1, characterized in that
das Verbindungselement (1) zumindest ein Zentrierelement (24) hat.the connecting element (1) has at least one centering element (24).
5. Verbindungselement nach Anspruch 1 oder 3 , dadurch gekennzeichnet, dass5. Connecting element according to claim 1 or 3, characterized in that
das Verbindungselement (1) im verbundenen Zustand keinen radialen Überstand hat .the connecting element (1) has no radial projection in the connected state.
6. Verbindungselement nach einem oder mehreren der Ansprüche 1, 3 oder 4, dadurch gekennzeichnet, dass6. Connecting element according to one or more of claims 1, 3 or 4, characterized in that
das Verbindungselement (1) im verbundenen Zustand keinen axialen Überstand hat .the connecting element (1) has no axial projection in the connected state.
7. Verbindungselement nach Anspruch 1, dadurch gekennzeichnet ,7. Connecting element according to claim 1, characterized in
dass das Werkstück (5,6) ein Rohrelement (7) bildet, dass das Rohrelement (7) auf zumindest einem Innenteil (30) befestigt ist, und dass das Innenteil (30) zumindest zwei radial überstehende Führungslängen (33) hat, deren axiale Längen im Vergleich zu einer axialen Länge des Rohrelements (7) klein sind. that the workpiece (5, 6) forms a tubular element (7), the tubular element (7) is fastened on at least one inner part (30), and that the inner part (30) has at least two radially projecting guide lengths (33), the axial length of which Lengths are small compared to an axial length of the tubular element (7).
8. Verbindungseiement nach Anspruch 6, dadurch gekennzeichnet, dass8. connecting element according to claim 6, characterized in that
das Innenteil (30) ein Spulenkörper (36) eines Elektromotors ist .the inner part (30) is a coil former (36) of an electric motor.
9. Verbindungselement nach Anspruch 1 oder 6, dadurch gekennzeichnet,9. Connecting element according to claim 1 or 6, characterized in
dass das Werkstück (5,6) ein Rohrelement (7) bildet, und dass das Rohrelement (7) als ein Rückschlusselement dient.that the workpiece (5,6) forms a tubular element (7) and that the tubular element (7) serves as a yoke element.
10. Verfahren nach Anspruch 1, dadurch gekennzeichnet,10. The method according to claim 1, characterized in
dass das zumindest eine Werkstück (5,6,7) zwei über die Enden (10,11) geradlinig fortgesetzte äussere Begrenzungslinien (64,66) hat, die vor dem Ineinanderschieben nicht parallel 'zueinander sind, und dass der Rand (27) zur Mittellinie durch eine Krafteinwirkung (21) verbogen wird, bis die äusseren Begrenzungslinien (64,66) ungefähr parallel zueinander sind. that the at least one workpiece (5, 6, 7) has two outer boundary lines (64, 66) which are rectilinearly continued over the ends (10, 11) and which are not parallel to one another before being pushed into one another, and that the edge (27) to The center line is bent by the application of force (21) until the outer boundary lines (64, 66) are approximately parallel to one another.
EP01953820A 2000-07-04 2001-07-03 Method for producing a mechanical link Withdrawn EP1301717A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10032331A DE10032331C1 (en) 2000-07-04 2000-07-04 The mechanical coupling bond between the ends of two tubular workpieces has a swallowtail contour at their ends for one to be pushed into the other and the outer bent edge is forced back inwards
DE10032331 2000-07-04
PCT/DE2001/002397 WO2002002952A1 (en) 2000-07-04 2001-07-03 Method for producing a mechanical link

Publications (1)

Publication Number Publication Date
EP1301717A1 true EP1301717A1 (en) 2003-04-16

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ID=7647643

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EP01953820A Withdrawn EP1301717A1 (en) 2000-07-04 2001-07-03 Method for producing a mechanical link

Country Status (7)

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US (1) US20020187000A1 (en)
EP (1) EP1301717A1 (en)
JP (1) JP2004501776A (en)
BR (1) BR0106934A (en)
DE (1) DE10032331C1 (en)
MX (1) MXPA02002336A (en)
WO (1) WO2002002952A1 (en)

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Also Published As

Publication number Publication date
WO2002002952A1 (en) 2002-01-10
BR0106934A (en) 2002-05-14
MXPA02002336A (en) 2003-06-23
JP2004501776A (en) 2004-01-22
US20020187000A1 (en) 2002-12-12
DE10032331C1 (en) 2001-09-13

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