DE102018103926A1 - Wire end forming device, clamping device usable therein and uses thereof - Google Patents

Abstract

To improve a wire forming process, the invention provides a wire end forming apparatus (14, 36, 38) for use in manufacturing a spooled electrical machine component for forming wire ends (34, 34a-34d) protruding from an annular housing (18) of the component ), comprising a bending device (52, 54) for bending wire ends (34, 34a-34d) in a radial direction and / or in the circumferential direction and a clamping device (50) which can be arranged between the housing (18) and the bending device (52, 54) ) for holding the wire ends (34, 34a-34d) during bending by the bending device. (52, 54).

Description

The invention relates to a Drahtendenumformvorrichtung for use in a production of a bobbin-provided component of an electrical machine, for forming from an annular housing of the component projecting wire ends. Furthermore, the invention relates to a clamping device for use in such a wire end forming device. Furthermore, the invention relates to a component manufacturing apparatus for producing a bobbin-mounted component of an electrical machine with such a wire end forming device and / or such a clamping device. Furthermore, the invention relates to a wire end forming method which can be carried out and / or carried out in the course of the production of a component provided with coils of an electrical machine for shaping wire ends projecting from an annular housing of the component. Finally, the invention relates to a use of a clamping device in a production of a coil-provided component of an electrical machine.

Electrical machines are understood in particular as machines for converting electrical energy into kinetic energy and machines for converting kinetic energy into electrical energy. In particular, these include electric motors and generators.

In the manufacture of machine elements of such electrical machines, such as stators or rotors, it is often necessary to join or otherwise handle together ends of wires formed from wires, e.g. to cut or shape together.

For example, there are electric motors in which coil windings, in particular of the stator, are formed of different pieces of wire whose ends are then connected together. Devices have been proposed for joining wire ends of hairpins for forming stator windings of electrical machines, in which the wire ends are welded together. In this case, devices and methods for positioning and clamping the wire ends are provided prior to welding.

In order to be able to weld the wire ends correctly, it is advantageous to first of all reshape, in particular to widen and to interlock, the protruding wire ends of the individual grooves of the housing of the component, for example after the insertion of hairpins or the like, e.g. to form wire end pairs to be joined together.

A Drahtendenumformvorrichtung for deforming from a housing of a component of an electric machine projecting wire ends in the circumferential direction is for example from US Pat. No. 6,519,993 B2 known.

The invention has for its object to provide apparatus and methods and uses available with which the wire forming can be done more reliable than previously known.

To achieve this object, the invention provides a Drahtendenumformvorrichtung with the features of claim 1 and a clamping device, a Bauteilherstellvorrichtung, a use of a clamping device and a Drahtendenumformverfahren according to the independent claims.

Advantageous embodiments are the subject of the dependent claims.

The invention, according to a first aspect thereof, provides a wire end forming apparatus for use in manufacturing a spooled component of an electrical machine. The wire end forming apparatus is a wire end forming apparatus for forming wire ends projecting from an annular housing of the component and includes a bending device for bending wire ends in a radial direction and / or in the circumferential direction, and a clamping device locatable between the housing and the bending device for holding the wire ends during bending through the bending device.

According to a further aspect, the invention provides a clamping device for a wire end forming device according to the preceding or one of the preferred embodiments specified below.

According to a further aspect, the invention provides a component manufacturing apparatus for producing a bobbin-mounted component of an electric machine, comprising a wire end forming device according to the above-described embodiment or one of the preferred embodiments and / or a clamping device according to the embodiment described above or one of the following in the following more detailed preferred embodiments.

According to a further aspect, the invention provides a use of a clamping device in a production of a bobbin-mounted component of an electrical machine during a wire forming, in which from a housing of the component projecting wire ends by means of a bending device in the radial and / or in Are circumferentially bent, wherein the clamping device between the housing and the bending device is arranged and holds there the wire ends during their bending by the bending device.

In the following, possible preferred embodiments of the wire end forming device, the clamping device, the component manufacturing device and / or the use will be explained. All of the features explained in more detail below may be present in embodiments of the wire end forming device, the clamping device, the component manufacturing device and / or the use.

It is preferred that the clamping device has a first clamping device which can be fixed to the housing or stationary and a second clamping device which is movable relative to the first clamping device in order to clamp wire ends between the first clamping device and the second clamping device.

It is preferred that the first clamping device is disc-shaped and / or annular.

It is preferred that the first clamping device is designed to be supported on inner wall regions of the housing which are arranged between grooves of the housing. In these grooves, the wire ends having wire segments can be arranged.

It is preferred that the first clamping means comprise a plurality of radially movable segments for fixing to inner wall regions of the housing, which are arranged between grooves of the housing, in which the wire ends having wire ends can be arranged.

It is preferred that the first clamping device has radially movable segments and an axially movable drive element for jointly driving the radial movement of the segments via a conical control surface.

It is preferred that the first clamping device has a first clamping region for abutment against radially inner sides of radially inwardly arranged wire ends of the wire ends protruding from the grooves of the housing.

It is preferred that the clamping device comprises a number of radially movable clamping fingers for clamping the wire ends.

It is preferred that the clamping fingers are formed on the second clamping device.

It is preferred that the clamping fingers are formed on the second clamping device and are adapted to clamp the wire ends to the first clamping device.

It is preferred that the clamping fingers are formed on the second clamping device and each have an engagement end for engaging in a corresponding complementary recess on the first clamping device. Preferably, the engaging end is received in the recess with such play that allows easy insertion and removal of the clamping fingers in the radial direction. Preferably, the respective engaging ends are supported in the retracted in the recess state on the recess to support the clamping fingers against displacement in the axial direction and / or circumferential direction.

It is preferred that the clamping device have rounded bending shapes for shaping at the wire ends during bending. Preferably, the clamping device comprises a group of first rounded bending molds for shaping during bending of wire ends in a radial direction and a group of second rounded bending molds for shaping during bending of the wire ends in the circumferential direction.

Preferably, the bending shapes are formed as rounded bending edges.

It is preferred that at least one of the bending forms is formed on each of the clamping fingers. Preferably, at least one first bending mold for shaping during bending of the wire ends in the radial direction and at least one second bending mold for shaping during bending in the circumferential direction are provided on each clamping finger. Preferably, the first and the second bending mold are formed at edges abutting against each other, in particular edges of a step or receiving grooves on the clamping fingers for the wire ends.

It is preferable that the clamping fingers are formed in a number corresponding to the number of groups of wire ends to be clamped together.

It is preferable that the clamping fingers are formed in a number corresponding to the number of grooves of the housing of the component to be manufactured.

It is preferred that the clamping fingers are each designed for common clamping of all mutually protruding from the associated groove of the housing wire ends.

It is preferred that the clamping fingers are driven radially or displaceably on a retaining ring driven jointly or synchronously.

It is preferred that the clamping fingers each have a formed on a step second clamping region for abutment against a radially outer side of the radially outer wire end of the protruding from the associated groove of the housing wire ends.

It is preferred that the clamping fingers each have a tapered tip at the free end.

It is preferred that the clamping fingers have at their free ends a step such that between adjacent clamping fingers located in the clamping position a receiving groove for two, three, four, five, six or more together from the associated groove of the housing projecting wire ends is formed.

It is preferred that the receiving groove is bounded on one substantially radially extending side and on substantially circumferentially extending sides of the one clamping finger and on another substantially radially extending side of the other clamping finger and on another substantially open in the circumferential direction side.

In a preferred embodiment of the clamping device generating a uniform contact force is provided by spring elements.

This avoids in particular the problem that only a few wire elements are held by the fingers of the clamping device, but then blocks the clamping device so that other wire ends are not detected.

1. a) Verbiegen der Drahtenden in eine radiale Richtung und/oder in Umfangsrichtung mittels einer die freien Drahtenden erfassenden Biegevorrichtung und den vor und/oder zumindest zeitweise während oder insgesamt während Schritt a) durchzuführenden Schritt
2. b) Festklemmen der Drahtenden mittels einer zwischen dem Gehäuse und der Biegevorrichtung angeordneten Klemmvorrichtung.

According to a further aspect, the invention provides a wire end forming method which can be carried out and / or carried out in the course of producing a bobbin-provided component of an electrical machine for forming wire ends projecting from an annular housing of the component, comprising the step:

1. a) bending the wire ends in a radial direction and / or in the circumferential direction by means of a bending device detecting the free wire ends and the before and / or at least temporarily during or during step a) to be performed step
2. b) clamping the wire ends by means disposed between the housing and the bending device clamping device.

• Fixieren einer ersten Klemmeinrichtung an dem Gehäuse oder ortsfest und
• Bewegen einer zweiten Klemmeinrichtung relativ zu der ersten Klemmeinrichtung,
• um die Drahtenden zwischen der ersten und der zweiten Klemmeinrichtung zu verklemmen.

Preferably, the wire end forming process includes the step of:

• Fixing a first clamping device to the housing or stationary and
• Moving a second clamping device relative to the first clamping device,
• to jam the wire ends between the first and second clamps.

Preferably, the wire end forming method comprises the step of: clamping together all the wire ends protruding from a groove of a housing.

• Abstützen einer ersten von mehreren relativ zueinander bewegbaren Klemmeinrichtungen an Innenwandbereichen des Gehäuses, die zwischen Nuten des Gehäuses angeordnet sind.

Preferably, the wire end forming process includes the step of:

• Supporting a first of a plurality of relatively movable clamping means on inner wall portions of the housing disposed between grooves of the housing.

• radiales Bewegen mehrerer Segmente einer ersten von mehreren relativ zueinander bewegbaren Klemmeinrichtungen zum Fixieren der ersten Klemmeinrichtung an dem Gehäuse und/oder zum Lösen von dem Gehäuse.

Preferably, the wire end forming process includes the step of:

• radially moving a plurality of segments of a first of a plurality of relatively movable clamping means for fixing the first clamping means to the housing and / or for releasing the housing.

• Antreiben einer radialen Bewegung mehrerer Segmente einer ersten von mehreren relativ zueinander bewegbaren Klemmeinrichtungen zum Fixieren der ersten Klemmeinrichtung an dem Gehäuse und/oder zum Lösen von dem Gehäuse mittels eines axial bewegbaren Antriebselements und gemeinsames Übertragen der Axialbewegung auf die Segmente mittels einer Steuerfläche oder
• einer konischen Fläche.

Preferably, the wire end forming process includes the step of:

• Driving a radial movement of a plurality of segments of a first of a plurality of relatively movable clamping means for fixing the first clamping device to the housing and / or for releasing the housing by means of an axially movable drive element and jointly transmitting the axial movement to the segments by means of a control surface or
• a conical surface.

• Anliegen eines an einer ersten von mehreren radial relativ zueinander bewegbaren Klemmeinrichtungen ausgebildeten ersten Klemmbereichs an radial inneren Seiten von radial innen angeordneten Drahtenden der aus den Nuten des Gehäuses herausragenden Drahtenden.

Preferably, the wire end forming process includes the step of:

• Concerning a first clamping region formed on a first of a plurality of clamping devices movable radially relative to one another on radially inner sides of radially inner wire ends of the wire ends protruding from the grooves of the housing.

• radiales Bewegen von entsprechend der Anzahl von Gruppen von miteinander zu verklemmenden Drahtenden und/oder von Nuten in dem Gehäuse vorgesehenen Anzahl von Klemmfingern zum Verklemmen der Drahtenden oder zum Lösen der Klemmung.

Preferably, the wire end forming process includes the step of:

• radially moving according to the number of groups of wire ends to be clamped together and / or provided by grooves in the housing number of clamping fingers for jamming the wire ends or for releasing the clamping.

The wire end forming method preferably comprises the step: clamping a respective group of the wire ends between a first clamping device and in each case a radially movable clamping finger of a second clamping device.

• Abstützen von sich in Klemmstellung bewegenden Klemmfingern gegen eine Verlagerung in eine Umfangsrichtung oder in eine axiale Richtung.

Preferably, the wire end forming process includes the step of:

• Supporting in clamping position moving clamping fingers against displacement in a circumferential direction or in an axial direction.

• Abstützen von sich in Klemmstellung bewegenden Klemmfingern gegen eine Verlagerung in eine Umfangsrichtung oder in eine axiale Richtung über formschlüssigen Eingriff jedes Klemmfingers in einer oder an einer komplementäre(n) Erfassungseinheit. Vorzugsweise ist die Erfassungseinheit als Aussparung ausgebildet oder weist eine solche auf.

Preferably, the wire end forming process includes the step of:

• Supporting clamping fingers moving in clamping position against displacement in a circumferential direction or in an axial direction via positive engagement of each clamping finger in or on a complementary detection unit. Preferably, the detection unit is formed as a recess or has such.

• Abstützen von sich in Klemmstellung bewegenden Klemmfingern gegen eine Verlagerung in eine Umfangsrichtung oder in eine axiale Richtung über formschlüssigen Eingriff einer Spitze eines jedes Klemmfingers einer zweiten Klemmeinrichtung in eine entsprechende Spitzenaufnahmenute an einer ersten Klemmeinrichtung.

Preferably, the wire end forming process includes the step of:

• Supporting clamping fingers moving in the clamping position against displacement in a circumferential direction or in an axial direction via positive engagement of a tip of each clamping finger of a second clamping device with a corresponding tip receiving groove on a first clamping device.

• Umformen der Drahtenden unter Anlage an an der Klemmvorrichtung angeordneten Biegeformen oder Biegekanten.

Preferably, the wire end forming process includes the step of:

• Forming the wire ends under abutment arranged on the clamping device bending shapes or bending edges.

Preferably, the wire end forming method comprises the step of driving the radial movement of clamping fingers together and / or synchronously to clamp the wire ends.

Preferably, the wire end forming method comprises the step of: jointly guiding the radial movement of clamping fingers on a retaining ring.

Preferably, the wire end forming method comprises the step of: receiving the clamped together emerging from a groove of the housing two, three, four, five, six or more wire ends in a receiving groove formed by adjacent clamping fingers at their free ends, wherein the receiving groove on a is substantially delimited in the radial direction side and on a substantially circumferentially extending side of the one clamping finger and at another substantially radially extending side of the other clamping finger and is open at another substantially circumferentially extending side.

A preferred field of use for the above-described apparatuses, methods and uses according to the invention is the production of coiled components of an electrical machine and more particularly the manufacture of stators of electrical machines and more particularly the manufacture of stators of electric motors used as traction motors for electric motor vehicles, especially in the power range of 10kW to 400 kW are formed. The devices, the method and use of the present invention as well as their advantageous embodiments are particularly suitable and usable in the field of production of electric motors or other electrical machines, such as generators, which are designed for high performance, reliable operation and high efficiency. In particular, electric motors are to be produced which can be used as traction motors of electric vehicles or hybrid vehicles and, for example, have a nominal power of between 20 kW and 400 kW. It is advantageous for the construction of stators of such powerful electric machines to provide the highest possible coil density. In particular, for this purpose, so-called hairpins are inserted into grooves of a stator housing, which grooves have previously been lined with a slot insulation, in particular slot insulation paper. Subsequently, the free wire ends are deformed in the radial direction - widened / "width" - and formed in the circumferential direction - "cabinets" - to form pairs to be joined together, in particular to be welded wire ends, so that then closed coil windings can be generated. Preferably, wires are used for this purpose, which are not round but rectangular in cross-section. The proposed devices and methods and uses have the advantage that the bend can be made more accurate and controlled.

In previous attempts to manufacture hairpin stators, collar support tools were delivered radially on the mating side in the two process steps "widths" and "cabinets". These Collar support tools were used to create a defined bending edge in the radial and tangential direction when forming the wire. In pure collar support tools, the wire would not be fixed during the forming of the wire, so that a relative movement between the wire and the collar support tools is possible. This can lead to damage to the wire and / or insulation. Furthermore, by this process, a deformation of the wires on the mating side possible.

As explained above, in the "width" the wires are deformed in the radial direction. Preferably in the next process - the "cabinets" these formed wires are inserted in grooves / pockets e.g. introduced by Schränkkronen. Due to a lack of fixation of the wires while "widening" they can reach an undefined position.

When inserting the wires into the grooves / pockets, this undefined position may result in wires being inserted into the "wrong" or no groove / pocket, which may result in damage to the wires and / or the coping crowns.

These disadvantages can be avoided or at least reduced with the invention or its advantageous embodiments.

Using advantageous embodiments of the invention, the wires can be fixed and positioned in the grooves of the housing. By a defined position of the wires damage can be avoided and an automated process can be enabled.

In particularly preferred embodiments of the invention, a two-part clamping device is used to fix the wires in the processes "widths" and "cabinets". In a first step, a first, preferably inner clamping device is introduced into the stator or the like. This first clamping device serves as a counter-holder. In a second step, collar support tools - "clamping fingers" - are radially delivered to a second, preferably outer clamping device. The collar support tools push the wires in the grooves against the inner clamp. In this case, preferably all existing in a groove wires are clamped - compared to existing solutions for pairwise positioning of wire ends for welding. Preferably, the collar support tools thus fulfill in addition to the generation of the bending edges during forming an additional clamping function.

Preferably, a two-part clamping device is provided. This comprises a first inner clamping device, which in a first step in the housing - preferably housing a stator - is introduced. In a second step, the collar support tools are radially delivered with a defined force so that the wires are pressed in the grooves against the inner clamping device. Preferably, the collar support tools are then held in place with screws.

Preferably, the first, inner clamping means in this case indentations - example of recesses, act as a tip shots - which can accommodate the tips of the collar support tools. This improves a wide and Schränkprozess and reduces the risk of injury to the wires and / or the insulation paper.

In a variant of the clamping device, the first, inner clamping device has a plurality of segments which, in a first step, are driven radially outwards via a conical region of a drive unit.

This variant is particularly advantageous when the necessary space for removing the inner clamping device has been filled by the Weit- and / or Schränkprozess. Due to the radial retraction of the segments, the inner clamping device can be compressed and removed.

• 1 eine schematische Blockdarstellung eines Ausführungsbeispiels für eine Bauteilherstellvorrichtung zum Herstellen eines mit Spulen versehenen Bauteils einer elektrischen Maschine;
• 2 eine schematische Darstellung eines Gehäuses des mit Spulen versehenen Bauteils vor einem Drahtumformverfahren;
• 3 einen Schnitt durch das Gehäuse wie in 2 nach einem Umformen von Drahtenden in radialer Richtung und vor einem Umformen der Drahtenden in Umfangsrichtung;
• 4 eine Draufsicht auf einen Teilbereich des Gehäuses von oben in 2 gesehen, wobei eine Nut des Gehäuses mit darin untergebrachten Drahtsegmenten, an denen Drahtenden ausgebildet sind, dargestellt ist;
• 5 eine Darstellung vergleichbar mit 5, wobei eine Klemmvorrichtung an den Drahtenden zum Verklemmen derselben angreift;
• 6 eine schematische Übersichtsdarstellung eines Ausführungsbeispiels einer Drahtendenumformvorrichtung, die eine Radial-Drahtendenumformvorrichtung zum Umformen der Drahtenden in radialer Richtung mit einer Radial-Biegevorrichtung und mit der Klemmvorrichtung sowie eine Umfangs-Drahtendenumformvorrichtung zum Umformen der Drahtenden in Umfangsrichtung mit einer Umfangs-Biegevorrichtung und der Klemmvorrichtung aufweist;
• 7 eine perspektivische Darstellung eines ersten Ausführungsbeispiels der Klemmvorrichtung;
• 8 eine vergrößerte Draufsicht auf ein Detail der Klemmvorrichtung von 7;
• 9 eine Draufsicht auf ein zweites Ausführungsbeispiel der Klemmvorrichtung;
• 10 eine perspektivische Ansicht des zweiten Ausführungsbeispiels der Klemmvorrichtung;
• 11 einen Schnitt durch die Klemmvorrichtung gemäß dem zweiten Ausführungsbeispiel entlang der Linie A-A von 9;
• 12 eine perspektivische Ansicht eines Ausführungsbeispiels für die Radial-Biegevorrichtung;
• 13 eine Draufsicht auf das Ausführungsbeispiel der Radial-Biegevorrichtung;
• 14 eine perspektivische Darstellung eines Ausführungsbeispiels einer Greifereinheit mit einer der Radial-Biegevorrichtung von 12 und 13;
• 15 eine perspektivische Darstellung eines Ausführungsbeispiels der Umfangs-Biegevorrichtung;
• 16 eine Draufsicht auf die Umfangs-Biegevorrichtung von 15;
• 17 ein Diagramm, bei der die Relativgeschwindigkeit zwischen einem Gehäuse und der Umfangs-Biegevorrichtung über die Zeit schematisch aufgetragen ist;
• 18 ein Diagramm, zur gleichen Zeit wie 17 aufgenommen, wobei schematisch Drehgeschwindigkeiten einer ersten bis vierten Aufnahme- und Dreheinheit der Umfangs-Biegevorrichtung vereinfacht dargestellt sind;
• 19 eine perspektivische Darstellung einer vierten Aufnahme- und Dreheinheit der Umfangs-Biegevorrichtung, wobei ein Ringelement zum Bilden von Drahtendenaufnahmen zu Erläuterungszwecken weggelassen worden ist;
• 20 eine Seitenansicht einer ersten Aufnahme- und Dreheinheit;
• 21 einen Schnitt durch die erste Aufnahme- und Dreheinheit entlang der Linie B-B von 20;
• 22 eine perspektivische Ansicht der ersten Aufnahme- und Dreheinheit;
• 23 eine Explosionsdarstellung in Seitenansicht der ersten Aufnahme- und Dreheinheit, wobei ein Hauptelement und ein Ringelement entfernt voneinander dargestellt sind;
• 24 eine perspektivische Explosionsdarstellung der ersten Aufnahme- und Dreheinheit;
• 25 eine perspektivische Darstellung einer ineinander geschachtelten Kombination aus der ersten Aufnahme- und Dreheinheit, einer zweiten Aufnahme- und Dreheinheit, einer dritten Aufnahme- und Dreheinheit und der vierten Aufnahme- und Dreheinheit;
• 26 einer Seitenansicht der Kombination von 25
• 27 einen Schnitt durch die Kombination entlang der Linie A-A von 26;
• 28 einen Schnitt durch eine Kombination einer ersten bis sechsten Aufnahme- und Dreheinrichtung der Umfangs-Biegevorrichtung der 15 und 16, wobei jede Aufnahme- und Dreheinrichtung eine Aufnahme- und Dreheinheit und ein sich in Umfangsrichtung erstreckendes Antriebselement aufweist, in einer Betriebsstellung, wobei ein Schnitt entlang der Linie B-B von 29 dargestellt ist;
• 29 eine Draufsicht auf die Kombination der 28;
• 30 die Kombination vergleichbar der 28 und 29, wobei eine erste Aufnahme- und Dreheinheit entfernt ist, gezeigt im Schnitt entlang der Linie C-C von 31;
• 31 eine Draufsicht auf die Kombination mit der bereits entfernten ersten Aufnahme- und Dreheinheit von 30;
• 32 die Kombination der 30 und 31 mit entfernter erster Aufnahme- und Dreheinheit, jedoch in einer Montage- und Demontagestellung zum Montieren oder Demontieren der zweiten Aufnahme- und Dreheinheit, gezeigt im Schnitt entlang der Linie D-D von 33 und
• 33 eine Draufsicht auf die Kombination der 32 in der Montage- und Demontagestellung.

Embodiments of the invention are explained in more detail below with reference to the accompanying drawings. It shows:

• 1 a schematic block diagram of an embodiment of a component manufacturing apparatus for producing a coil-provided component of an electrical machine;
• 2 a schematic representation of a housing of the coil-provided component before a wire forming process;
• 3 a section through the housing as in 2 after forming wire ends in the radial direction and before forming the wire ends in the circumferential direction;
• 4 a plan view of a portion of the housing from above in 2 seen, wherein a groove of the housing with housed therein wire segments, on which wire ends are formed, is shown;
• 5 a representation comparable to 5 wherein a clamping device engages the wire ends to clamp them;
• 6 FIG. 2 is a schematic overview of an exemplary embodiment of a wire end forming device which has a radial end A wire end forming apparatus for deforming the wire ends in the radial direction with a radial bending device and the clamping device, and a peripheral wire end forming device for forming the wire ends in the circumferential direction with a peripheral bending device and the clamping device;
• 7 a perspective view of a first embodiment of the clamping device;
• 8th an enlarged plan view of a detail of the clamping device of 7 ;
• 9 a plan view of a second embodiment of the clamping device;
• 10 a perspective view of the second embodiment of the clamping device;
• 11 a section through the clamping device according to the second embodiment along the line AA of 9 ;
• 12 a perspective view of an embodiment of the radial bending device;
• 13 a plan view of the embodiment of the radial bending device;
• 14 a perspective view of an embodiment of a gripper unit with one of the radial bending device of 12 and 13 ;
• 15 a perspective view of an embodiment of the peripheral bending device;
• 16 a plan view of the peripheral bending device of 15 ;
• 17 a diagram in which the relative speed between a housing and the peripheral bending device is schematically plotted over time;
• 18 a diagram at the same time as 17 recorded, wherein schematically rotational speeds of a first to fourth receiving and rotating unit of the peripheral bending device are shown simplified;
• 19 a perspective view of a fourth receiving and rotating unit of the peripheral bending device, wherein a ring member for forming Drahtendenaufnahmen has been omitted for explanatory purposes;
• 20 a side view of a first receiving and rotating unit;
• 21 a section through the first recording and rotation unit along the line BB of 20 ;
• 22 a perspective view of the first receiving and rotating unit;
• 23 an exploded view in side view of the first receiving and rotating unit, wherein a main element and a ring member are shown remote from each other;
• 24 an exploded perspective view of the first receiving and rotating unit;
• 25 a perspective view of a nested combination of the first receiving and rotating unit, a second receiving and rotating unit, a third receiving and rotating unit and the fourth receiving and rotating unit;
• 26 a side view of the combination of 25
• 27 a section through the combination along the line AA of 26 ;
• 28 a section through a combination of a first to sixth receiving and rotating device of the peripheral bending device of 15 and 16 , wherein each receiving and rotating means comprises a receiving and rotating unit and a circumferentially extending drive element, in an operating position, wherein a section along the line BB of 29 is shown;
• 29 a plan view of the combination of 28 ;
• 30 the combination is comparable to 28 and 29 , wherein a first pick-and-turn unit is removed, shown in section along the line CC of FIG 31 ;
• 31 a plan view of the combination with the already removed first recording and rotation unit of 30 ;
• 32 the combination of 30 and 31 with removed first receiving and rotating unit, but in an assembly and disassembly position for mounting or dismounting of the second receiving and rotating unit, shown in section along the line DD of 33 and
• 33 a plan view of the combination of 32 in the assembly and disassembly position.

In 1 is an embodiment of a component manufacturing device 10 for producing a coil-provided component of an electrical machine shown as a block diagram, whereby also manufacturing steps of a corresponding Bauteilherstellverfahren for producing the component are illustrated.

The component manufacturing device 10 is in particular for producing a stator one suitable for electrical machine. The stator should in particular be used as a stator of a drive motor of an electric vehicle, preferably in the power range from 20 kW to 400 kW. For this purpose, the stator should receive the largest possible number of coils, the coils of so-called hairpins 12 be generated.

In the illustrated embodiment, the component manufacturing apparatus 10 a wire end forming device 14 and preferably one or more or all of the additional stations specified below.

Preferably, the component manufacturing device 10 a housing manufacturing device 16 for producing a housing 18 of the example designed as a stator component. The case manufacturing device 16 is z. B. formed in a basically known manner to the housing 18 produce as a laminated core of individual sheet metal layers, wherein the housing 18 is annular and formed on an inner wall portion with a series of housing grooves formed distributed on the inner wall 20 is provided, which serve to receive wire segments.

Preferably, the component manufacturing device 10 a device 22 for producing slot insulations, by means of which the individual housing grooves 20 with a slot insulation 24 , preferably made of insulation paper. The device for producing slot insulations 22 is preferably in the in the German patent application DE 10 2017 129 474.0 executed in more detail, and for further details expressly to this German patent application DE 10 2017 129 474.0 is referenced.

The component manufacturing device 10 further has a hairpin maker 26 for making the hairpins 12 on. The hairpin manufacturing device 26 can z. B. (not shown) cutting devices for cutting wire pieces of a wire coil and not shown bending devices for bending a roof bending and / or buckling and / or 3-dimensional bending of the hairpins 12 respectively.

Preferably, the component manufacturing device 10 a pre-positioning device 28 for pre-positioning the hairpins 12 and a hairpin insertion device 30 to plug in the prepositioned hairpins 12 in the housing grooves 20 of the housing 18 on.

Possible embodiments of the pre-positioning device 28 and the Hairpin plug-in device 30 are closer in the German patent application DE 10 2017 113 617.7 shown and described, to which reference is expressly made for further details.

As with the Hairpinherstellvorrichtung 26 hinted, have the hairpins 12 a curved winding head 32 as well as two free wire ends 34 , except for the outermost end area at each wire end 34 provided with an insulation, for example a plastic coating. Insert after the hairpin by means of the hairpin insertion device 30 stand the wire ends 34 at one end of the housing 18 from the housing grooves 20 in front.

The wire end forming device 14 serves to carry out a wide process where the individual wire ends 34 be widened in the radial direction and for performing a Schränkprozesses, wherein the thus expanded wire ends 34 are formed in the circumferential direction, so as pairs of wire ends to be joined together 34 to build.

For this purpose, the Drahtendenumformvorrichtung 14 a radial wire end forming device 36 and a circumferential wire end forming device 38 on.

The component manufacturing device 10 may further include a biasing and / or fixing device 40 for biasing and / or fixing the individual pairs of wire ends 34 respectively. An embodiment of the biasing and fixing device 40 is in the German patent application DE 10 2017 114 932.5 shown and described, to which reference is expressly made for further details.

The component manufacturing device 10 may further be a wire end cutting device 42 for cutting with the biasing and / or fixing device 40 include strained and fixed wire ends.

An embodiment of the component manufacturing device 10 further includes a wire end welding device 44 for welding the wire ends to be joined together to form the coils 34 on.

Next, the Bauteilherstellvorrichtung 10 devices 46 for electrical contact of the hairpins 12 so formed coils and / or for testing and / or casting of the stator thus formed.

In the following, embodiments of the Drahtendenumformvorrichtung 14 the component manufacturing device 10 explained in more detail.

In the component manufacturing device 10 according to the in 1 The illustrated embodiment is used to manufacture a stator as an example of the Component first, a housing 18 with housing grooves 20 and housed therein slot insulation 24 provided; at the same time become leaders in the form of hairpins 12 manufactured. The ladder in the form of hairpins 12 are then in the laminated core of the housing 18 inserted.

Subsequently, a Drahtendenumformverfahren by means of Drahtendenumformvorrichtung 14 , The initial state for the wire end forming process is in 2 shown. In the sectional view in the 2 is an intermediate product for producing the stator in a simplified representation, in particular without representation of the winding head shown. In a first sub-process of the wire end forming process, the conductor ends become wire ends 34 - Radially reshaped, as in the 3 are shown. This sub-process is also called "widths". For this purpose, the Drahtendenumformvorrichtung 14 the radial wire end forming device 36 on.

4 shows the top view from above 2 seen on one of the housing grooves 20 , In the illustrated embodiment, a total of four wire segments 48a - 48d with corresponding from the housing groove 20 protruding four wire ends 34a - 34d shown. The wire end forming method as well as the wire end forming devices provided therefor 14 . 36 . 38 are corresponding to this example case with four wire ends 34a - 34d per housing groove 20 educated. In other embodiments, not shown, for example, 2, 3, 6, 8 or more or fewer wire ends 34 provided per groove, wherein the number of corresponding handling elements, as will be shown in more detail below, are adjusted accordingly.

For the automated processes following the Weit process, the wire ends should be 34a - 34d be reshaped so that their position is within a predefined tolerance field. So that the wire ends 34a - 34d They can be deformed reproductively, they are at their free end and at the foot - the upper edge of the housing 18 - curious; excited.

For this purpose, a clamping device 50 provided, of which embodiments in the 5 and 7-11 are shown.

An embodiment of the Drahtendenumformvorrichtung 14 is schematic in 6 shown. Accordingly, an embodiment of the Drahtendenumformvorrichtung 14 the clamping device 50 and at least one bending device 52 . 54 on.

The illustrated wire end forming device 14 has at least two stations, a first station for radially reshaping the wire ends 34a - 34d and a second station for forming the wire ends 34 . 34a - 34d in the circumferential direction. These two stations are here as Radial Drahtendenumformvorrichtung 36 and circumferential wire end forming device 38 designated.

The radial wire end forming device 36 has a radial bending device 52 for bending the wire ends 34 . 34a - 34d in the radial direction.

The circumferential wire end forming device 38 has a peripheral bending device 54 for forming the preferably already radially expanded wire ends 34 . 34a - 34d in the circumferential direction. Next point both stations 36 . 38 in each case the clamping device 50 on.

Preferably, the wire end forming devices 14 . 36 . 38 in each case a relative movement device 56 . 58 on to the case 18 relative to the respective bending device 52 . 54 to move in an axial direction. As an "axial direction" this is a movement in the direction along the central axis of the annular housing 18 Roger that. Also, the radial direction and the circumferential direction are each relative to this central axis of the housing 18 Are defined.

A first relative movement device 56 is together with the radial bending device 52 and the clamping device 50 at the radial wire end forming device 36 educated. A second relative movement device 58 is together with the peripheral bending device 54 and the clamping device 50 on the circumferential wire end forming device 38 educated. Next, the Drahtendenumformvorrichtung 14 a transport device 60 for transporting the housing 18 from the radial wire end forming device 36 to the peripheral wire end forming device 38 and a control device 62 for controlling the individual units of the wire end forming device 14 on.

The transport device 60 can be formed in any form. In the illustrated embodiment, the transport device 60 a kind of carousel with several arms on which the relative movement devices 56 . 58 are formed. The transport device 60 and the relative movement devices 56 . 58 can be formed by a robot or a portal machine.

The relative movement devices 56 . 58 each have a housing holder 64 on the case 18 with downwardly projecting wire ends 34 . 34a - 34d is held and a case holder drive 66 on, by means of the housing holder 64 relative to the respective bending device 52 . 54 driven in the axial direction is movable on. In other embodiments, which are currently less preferred, the housing becomes 18 held stationary and the bending device 54 or 56 moved axially.

The control device 62 has a first controller for controlling the radial wire end forming device 36 on which the housing holder drive 66 the first relative movement device 56 and the radial bending device 52 controls. Next, the control device 62 a second controller 70 on which the housing holder drive 66 the second relative movement device 58 and the peripheral bending device 54 controls. In the illustrated embodiment, the control device 62 a third controller 72 on which the transport device 60 controls. The control device 62 Can be located locally on the wire end forming device 14 be provided or part of a central control (not shown) of the component manufacturing device 10 his. The individual control devices 68 . 70 . 72 can be implemented in hardware or in software.

The clamping device 50 is preferably both in the radial forming of the wire ends in the Radial Drahtendenumformvorrichtung 36 as well as the forming of the wire ends 34 . 34a - 34d in the circumferential direction in the circumferential Drahtendenumformvorrichtung 38 used. For this purpose, the clamping device 50 by means of the transport device 60 together with the housing 18 from the radial wire end forming device 36 to the peripheral wire end forming device 38 be transported further. The clamping device 50 can for example also on the case holder 64 attached or part of the same. In some embodiments, the clamping device is 50 provided as a separate component.

As in 6 is shown in operation, the clamping device 50 between the case 18 and the respective bending device 52 . 54 arranged.

The clamping device 50 points, like this in 5 indicated is a first clamping device 74 , which is preferably formed as an inner clamping device and a second clamping device 76 , which is preferably designed as an outer clamping device, on.

The first clamping device 74 is preferably partially inside the housing 18 arranged and further preferably supports on inner wall areas 78 (please refer 5 ) from inside the case 18 between the housing grooves 20 are formed.

The second clamping device 76 is relative to the first clamping device 74 movable to wire ends 34 . 34a - 34d between the clamping devices 74 . 76 to jam. Preferably, all are made together from a housing groove 20 protruding wire ends 34 . 34a - 34d between the clamping devices 74 . 76 jammed.

A first embodiment of the clamping device 50 will be described below on the basis of 5 . 7 and 8th explained in more detail.

In this embodiment, the first clamping device 74 disc-shaped or annular. The first clamping device 74 has a ring disk body 80 on, which is inserted with a first portion in the housing and preferably on the inner wall areas 78 is supported or fixed relative to these. For this purpose, the annular disk body 80 for example in the annular housing 18 be braced axially by means of a non-illustrated counter-clamping element at the opposite end of the housing. For example, the counter-clamping element as part of the housing holder 64 be educated. Another part of the ring disk body 80 stands, as in 5 is hinted from the end of the case 18 protrudes and supports itself with an annular flange 82 at this end of the case 18 from. This projecting portion of the washer body 80 is like this in the 7 and 8th is shown with a series of circumferentially distributed recesses 84 provided as lace shots 85 serve. The number of recesses 84 corresponds to the number of housing grooves 20 on the housing 18 , The recesses 84 are open radially outwards.

The second clamping device 76 has a number of collar support tools in the form of clamping fingers 86 on. Next, the second clamping device 76 in the illustrated embodiment, a retaining ring 87 on, on which the clamping fingers 86 driven jointly and synchronously and radially displaceably recorded.

The clamping fingers 86 are each rod-shaped and are with an area in the retaining ring 87 recorded. The clamping device may be formed, for example, as a hand-held device without a drive. Here are the clamping fingers 86 moved manually. At the in 7 illustrated training are cylindrical pins 88 intended for fixing; also could by means of screws 94 a manual clamping done. In other (not shown embodiments, the in the retaining ring 87 recorded area of the clamping fingers 86 one each Have rack portion which meshes with gears (not shown) which are driven jointly on protruding gear shafts. In another embodiment, also not shown here, a corresponding drive cam is provided instead of a gear.

Next, the clamping fingers 86 with spring elements not shown here, for example, one compression spring per clamping finger 86 , Be provided for a uniform contact pressure of the clamping fingers 86 to care.

How best 8th can be seen, has a respective rod element 90 of the clamping finger 86 which is in the retaining ring 87 is guided, a in the longitudinal direction of the clamping finger 86 extending slot 92 on, through which a fastening screw 94 is guided, wherein the shank of the fastening screw 94 over the stop in the slot 92 the sliding movement of the clamping fingers 86 limited.

At the inboard ends, the clamping fingers 86 an engaging in the form of a tapered tip 96 on which to intervene in the recess 84 is trained.

Next, each clamping finger 86 a step at its free end 98 on, on one side by the tapered tip 96 is limited and on a transverse thereto extending side through the thicker formed rod member 90 is limited.

The of the housing 18 facing away from the circumferentially extending edge of the step 98 attached to the rod element 90 is formed, is for forming a first bending mold 100 rounded. Also is one of the housing 18 facing away radially extending edge at the top 96 to form a bending mold 102 . 104 designed for the cabinets. This applies both to the edge in the area of the step 98 as well as the edge on the other side of the top 96 , which also has a rounded bending shape 104 forms for the Schränkprozess.

When in the 7 and 8th shown clamping position are the tips 96 in the lace shots 86 on the ring flange 82 introduced; the steps 98 and the tips 96 make up with the tips 96 the adjacent clamping finger 86 receiving grooves 106 for a group of wire ends 34 . 34a - 34d made up of a housing groove 20 protrude. This group of wire ends 34a - 34d is between a first clamping area 108 at the first clamping device 74 and a second clamping area 110 at the second clamping device 76 clamped when the clamping fingers 86 be moved radially inward. The first clamping area 108 is on the ring flange 82 each between the lace shots 86 educated. The second clamping area 110 is at the of the rod element 90 limited area of the stage 98 educated. The edges of the housing 18 are turned away and around the respective receiving groove 106 are formed, so act as a bending mold 100 . 102 . 104 for wire forming. When wire forming are the clamping fingers 86 on the one hand in the retaining ring 87 and on the other hand by the inclusion of the tips 96 in the top shot 85 supported.

The following is still based on the 9-11 a second embodiment of the clamping device 50 explained in more detail. This second embodiment corresponds to the differences of the first embodiment shown in more detail below, so that reference can be made to the above description, wherein the same reference numerals have been used for corresponding elements.

The second embodiment is particularly useful where there is little room for inserting and securing the first clamp 74 is available.

For this purpose, instead of the annular disc body 80 an arrangement of a plurality of radially movable segments 112 provided between a base body 114 and an annular disc 116 are guided movable in the radial direction and via a means of a drive thread 118 axially movable cone-shaped drive element 120 are drivable. The in 2 illustrated upper edge of the housing 18 with the wire ends 34 . 34a-d settles in an annular recess 122 insert, between the radially movable segments 112 and the retaining ring 87 is formed, in which case by axial displacement of the cone-shaped drive element 120 the radially movable segments 112 be moved radially outward, so against the inner wall areas 78 of the housing 18 to be driven so that the clamping device 50 so on these inner wall areas 78 is fixed.

In both embodiments of the clamping devices shown here 50 then stand the wire ends 34a - 34d from every housing groove 20 over the clamping device 50 like this in 6 is indicated, and can by the respective bending device 52 . 54 be transformed.

An embodiment of the radial bending device 52 is described below with reference to the representations in the 12-14 explained in more detail.

The in the 12-14 illustrated embodiment of the radial bending device 52 has a base plate rotatable about a rotation axis 124 , one by the first controller 68 controllable Base plate drive means 126 for driving the rotational movement of the base plate 124 , one relative to the base plate 124 also about the rotation axis rotatable drive plate 128 , a drive plate drive device 130 for driving the rotational movement of the drive plate 128 which by the first control 68 can be controlled, and a series of distributed over a circumference arranged gripper 132 on. One gripper each 132 is on a gripper unit 134 trained in 14 is shown individually.

These are on the base plate 124 Displacement guides, for example in the form of a sliding rail 136 provided, which extend in the radial direction. At the sliding guide is in each case a gripper carriage 138 slidably guided. On the gripper carriage 138 are a first jaw 140 and a second jaw 142 guided displaceable relative to each other in the tangential direction. For example, on the gripper carriage 138 a leader block 144 with a first guide groove 146 for guiding the jaw 140 and a second guide groove 148 for guiding the second gripping jaw 142 educated. Next, each gripper unit 134 a not shown in the drawings jaw drive unit. The jaw drive units of all jaws can be driven synchronously by means of a common drive means also not shown. Alternatively, the jaws can be all, one group or single gripper 132 z. B. individually driven by electric motors. The jaw drive means and the jaw drive units are also via the first controller 68 controllable.

How farther 14 and the 12 and 13 removable, shows each gripper carriage 138 a backdrop pin 150 on, in a corresponding, per gripper 132 provided backdrop 152 in the drive plate 128 intervenes. In the illustrated embodiment, the backdrop 152 each formed by an obliquely extending to the radial direction slot. A relative rotation between drive plate 128 and base plate 124 leads over the trained as a slot backdrop 152 to a displacement of the gripper carriage 138 and thus the gripper 132 along the sliding rail 136 in the radial direction. As a result, all grippers 132 jointly movable in the radial direction.

How best 14 As can be seen, the individual grippers 132 designed tweezer-shaped. This is on each jaw 140 . 142 each one in the radial direction inwardly projecting free end 154 provided, being at the top of the free end 154 one on the other jaw to projecting projection 156 is provided. The mutually facing surfaces of the projections 156 form the clamping surfaces 158 for clamping the respective wire ends to be bent 34a - 34d , For this purpose, the dimension of the clamping surfaces 158 chosen such that always always only one wire end 34a - 34d between the projections 156 is trapped. In some embodiments, clamping surfaces may be provided between two projections, so that the wire ends are frictionally engaged on the clamping surfaces and can be positively detected between the projections

How out 6 apparent controls the first controller 68 also the first relative movement device 56 This is in each case that relative movement device, which by the transport device 60 in a position near the radial bending device 52 has been moved.

The portion of the wire end forming process which results in the widening of the wire ends (the bending of the wire ends 34a - 34d from the in 2 shown location in the 3 shown position) will be explained in more detail below.

First, that of the hairpin insertion device 30 coming housing 18 with the out of the housing grooves 20 protruding wire ends 34 on the housing holder 64 fixed, and the clamping device 50 is so on the housing 18 fixed that the clamping device 50 between the case 18 and the radial bending device 52 is arranged. More precisely, the clamping device 50 at the end of the case 18 arranged, with the wire ends 34a - 34d , which come together from a housing groove 20 protrude, each in common between one of the clamping fingers 86 and the first clamping device 74 be jammed. The corresponding receiving groove 106 the clamping device 50 is designed such that the protruding with its end slot insulation 24 remains protected.

Then the case becomes 18 by means of the first relative movement device 56 with the protruding protruding wire ends 34a - 34d axially in the direction of the radial bending device 52 method.

At the beginning, all are grapples 132 by appropriate relative position between the base plate 124 and drive plate 128 moved to the furthest outward position. The over the clamping device 50 further down the wire ends 34 . 34a - 34d be in the space radially inside the gripper 132 retracted. The base plate 124 is positioned so that each gripper 132 centrally to a housing groove 20 is aligned. In the illustrated embodiment, there are fewer grippers 132 as housing grooves 20 intended. For example, 64 housing grooves are provided, but only 8 grippers. Preferably applies to the number n _{GN of} the housing grooves and the number n _{Gr of} the gripper 132 n _GN = M × n _Gr , where M, n _GN and n _{Gr are} natural numbers.

Thus, first the wire ends 34a - 34d , which consists of a subgroup of the housing grooves 20 protrude, radially expanded.

The first controller controls this 68 the drive plate drive device 130 such that the grippers 132 with gripper jaws removed from each other 140 . 142 to the height of the radially outermost arranged first wire ends 34a be moved. Subsequently, the jaw drive device is driven to the gripper jaws 140 . 142 to move each other and so the first wire ends 34a through the grippers 132 capture. With merged gripping jaws 140 then becomes the drive plate drive means 130 through the first controller 68 driven so that the gripper 132 by a predetermined amount along the slide rail 136 move radially outward, so the first wire ends 34a bend radially outward. The first rounded bending shape causes this 100 a reproducible bending of the first wire ends 34a , At the same time, the first relative movement device becomes 56 controlled to the relative position between housing 18 and radial bending device 52 in accordance with the change in the extent of the extension of the first wire ends that can be adjusted during bending 34 to compensate in the axial direction.

Subsequently, the gripping jaws 140 . 142 moved apart, and the gripper 132 be about driving the drive plate drive means 130 to the radial position of the second wire segments 48b moves, while the axial relative position to a value specific to the second wire end for the beginning of the bending of the second wire ends 34b is set. The second wire ends 34b are then moved accordingly by moving the jaws 140 clamped and / or positively held and by movement of the gripper 132 radially outward by a certain, smaller amount than the first wire ends 34a bent outwards. Here again, the axial relative position corresponding to the change in the axial extent of the second wire ends 34b tracked.

This process then becomes for the third wire end 34c repeated. In one embodiment, the fourth wire end remains 34d in the original position. In another embodiment, the fourth wire end is also used 34d bent outward by a small amount to ensure positioning of the fourth wire end within a narrow tolerance range. In principle, however, it is also possible to bend inwards, at least from a few wire ends, for example the innermost wire ends 34d ,

Then the grapples drive 132 again in the radially outermost position and then by the first controller 68 the base plate drive device 126 driven to the base plate 124 to turn a piece until the gripper 132 to the middle of the next adjacent housing groove 20 are set. Here then the process of widening is repeated again starting with the first, radially outermost wire end 34a until the third wire end 34c or possibly up to the fourth end of the wire 34d ,

In the embodiment shown here, where the number n _{Gr of} the gripper 132 one eighth of the number n _{GN of} the housing grooves 20 is, is the expansion process after an eight-time adjustment of the base plate 124 completed.

In other embodiments, there are not four wire ends 34a - 34d per housing groove 20 provided, but a different number. Also in these embodiments, the expansion takes place analogously to the example with four wire ends 34a - 34d per housing groove 20 explained example.

The following are based on the representations in the 15-33 possible embodiments of the peripheral bending device 54 explained in more detail.

It is in the 15 and 16 an overall view of an embodiment of the peripheral bending device 54 shown. This embodiment has a first to sixth receiving and rotating device 160a - 160f on. Each recording and rotating device 160a - 160f each has a recording and rotation unit 162a - 162f for picking up a group of wire ends 34a or 34b or 34c or 34d with the same radial distance to the center of the housing and to twist these wire ends 34a . 34b . 34c or 34d for bending in the circumferential direction and a drive device 164a - 164f for driving a rotary movement of the recording and rotation unit 162a - 162f on.

Every drive device 164a - 164f has an about the common axis of rotation rotatably mounted annular drive element 166a - 166f and an actor 168a -168f for rotary drive of the drive element 166a - 166f on. In the illustrated embodiment, the drive elements 166a - 166f designed as annular disk elements with a boom, wherein the actuators 168a -168f are designed as linear drives, for example designed as electric spindle drives.

Next is every drive element 166a - 166f on a stationarily secured ring carrier disk 170a - 170f rotatably mounted. The actors 168a - 168f are on machine racks 172 stationary to the ring carrier discs 170a - 170f stored. The ring carrier discs 170a - 170f are together at mounting columns 174 attached. So are the drive elements 166a - 166f as well as the recording and rotating units attached thereto in more detail 162a - 162f Although rotatable about a common axis of rotation and relative to each other, but are held in the axial direction stationary to each other. It is merely a rotary drive (first to sixth drive means 164a - 164f ) but no separate axial drive necessary.

In the 20 to 24 is the first recording and turning unit 162a shown in different illustrations. 19 shows a perspective view of the fourth receiving and rotating device 162d and the 25 to 27 show a combination of the stacked first to fourth receiving and rotating unit 162a - 162d , As can be seen from these illustrations, each recording and rotation unit has 162a - 162f an annular array of upwardly open and axially downwardly extending receiving holes 176 for picking up wire ends. The ring arrangement of receiving holes 176 is on Schränkkronen 180a - 180f formed, which are arranged lying around each other with different diameters at the same axial height and all end up at the same axial height. In this case, the first recording and rotation unit 162a a ring arrangement of receiving holes 176 with the largest diameter. This is done inwardly the ring assembly of the second receiving and rotating unit 162b , then the ring assembly of the third receiving and rotating unit 162c etc. up to the sixth recording and turning unit 162f whose ring arrangement is located furthest inward.

Thus, the first recording and turning unit 162a for receiving the most radially outwardly disposed first wire ends 34a formed, with all the first wire ends 34a from all housing grooves 20 detectable and by rotation of the first recording and rotation unit 162a are bendable in the circumferential direction. The second recording and turning unit 162b is to accommodate all of all housing grooves 20 protruding second wire ends 34b educated. To wire ends forming the second recording and rotation unit 162b in the opposite direction as the first recording and turning unit 162a twisted as far as some of the first wire ends 34a from one of the next housing grooves 20 on the same circumferential position as some of the second wire ends 34b to come to rest so that pairs of wire ends to be joined together 34a . 34b to lie next to each other. The third recording and turning unit 162c serves to pick up and bending the third wire ends 34c in the circumferential direction and the fourth receiving and rotating unit 162d serves to pick up and bending over the fourth wire ends 34d ,

The circumferential bending device shown here 54 still has a fifth and sixth recording and rotation unit 162e and 162f on, so that even fifth and sixth wire ends could be bent over. For the manufacture of the stator, of which a precursor in the 2 and 3 is shown where four wire ends 34a - 34d from every case groove 20 protrude, ranging from the first to fourth recording and rotating device 160a - 160d out, leaving the fifth and sixth recording and turning device 160e . 160f could also be omitted. With a correspondingly smaller or larger number of wire ends, the number of receiving and rotating devices would be adjusted accordingly.

The bending of the wire ends 34a - 34d in the circumferential direction takes place in each case with opposite direction of rotation for in a housing groove 20 adjacent to each other arranged wire ends 34a / 34b . 34b / 34c . 34c / 34d and so far that with an adjacent wire end of one of the next Gehäusenuten 20 in each case a pair for connection can be made so that there are several continuous coil windings. The respective outer wire ends must 34a to be bent over a greater distance due to the larger circumference on the outside than the respectively inside completely arranged wire ends 34d ,

Hence the hairpins 12 preferably already produced in such a way and / or in the housing 18 pushed in that first wire ends 34a like this in 2 and 3 is shown projecting with a greater length than the second wire ends 34b , the second wire ends 34b project with a greater length than the third wire ends 34c and the third wire ends 34c again project with a greater length than the fourth wire ends 34d , The differences in length depend in each case on the differences of the track to be bridged in the circumferential direction.

When bending the wire ends 34a - 34d by rotation of the corresponding recording and rotation unit 162a - 162d shortens due to the bend, the respective axial extent of the more and more bending wire end 34a -34d.

Therefore, in the setting process in the peripheral wire end forming apparatus 38 the second relative movement device 58 tracked accordingly to compensate for the length compensation. The corresponding activation takes place via the second controller 70 , which both all drive means 164a - 164f and thus about the actors 168a - 168f the drive elements 166a - 166f controls as well as the second relative movement device 58 controls.

This results in the different lengths of wire ends 34a - 34d and the different lengths of deflection in the circumferential direction for the respective wire ends 34a - 34d with different radial distance to the housing center axis different motion profiles K1 . K2 . K3 . K4 ,

Instead now for each recording and rotating device 160a - 160f to provide for the different length compensation a separate movement in the axial direction, the rotational movement of the individual recording and rotating units 162a - 162f differently controlled such that, depending on the relative movement between the housing 18 and peripheral bending device 54 and depending on the bending of the respective wire ends 34a -34d axial length change in the circumferential direction, the rotational movement of each receiving and rotating unit 162a - 162f individually controlled so that in the receiving holes 176 no relative movement between the respective end region of the wire end 34a - 34d and the receptionist 176 results.

Very simplified examples of corresponding motion profiles K1 - K4 are in the 17 and 18 shown. 17 in this case shows the movement profile of the second relative movement device 58 and more specifically the relative velocity v between the housing 18 and the peripheral bending device 54 , 18 shows at the same time the rotational speeds ω for the first to fourth exception and rotation unit 162a - 162d ,

How out 17 in this case, the housing is preferably visible 18 at a uniform velocity v on the peripheral flexure 54 too moved.

The first wire ends 34a are located after the expansion process discussed above at the radial height of the ring assembly of receiving holes 176 the first recording and turning unit 162a and are just before the time t ₁ with their end a piece of the receiving holes 176 retracted. The time t ₁ is chosen so that a sufficiently long end portion of the first wire ends 34a in the receiving holes 176 the first recording and turning unit 162a retracted. Subsequently, as in the curve K ₁ is shown, the beginning of a rotational movement of the first recording and rotation unit 162a in the first direction of rotation (positive axis of 18 ). The rotational speed ω is not the same, but varies according to the resulting from the uniform speed of the housing 18 on the peripheral bending device 54 to and from the resulting by turning axial length change of the first wire ends 34a resulting requirement. The curve K ₁ is indicated here in a simplified linearly increasing manner. The actual movement process is a bit more complicated, but can be easily determined by simple experiments or by calculation. The goal here is that the end regions do not shift in the axial direction within the receiving holes.

Just before the time t ₂ drive the end portions of the second wire ends 34b in the receiving holes 176 the second recording and turning unit 162b until at the time t ₂ have moved sufficiently far in it. At this time t ₂ begins the rotation of the second recording and rotation unit 162b in the opposite direction of rotation to the rotation of the first receiving and rotating unit 162a (negative range at 18 ). The corresponding rotation of the second recording and rotation unit 162b is through the bend K ₂ also simplified as linearly increasing indicated. Again, the actual movement is complicated. The curves K ₃ and K ₄ show with their starting points t ₃ and t ₄ the respective corresponding movement profile for the third recording and rotation unit 162c or the fourth recording and rotation unit 162d , Is here a stator with six wire ends per housing groove 20 processed, would still appropriate curves for the fifth and sixth recording and rotation unit 162e . 162f specified.

Out 17 and 18 It can be seen that the different recording and rotation units 162a - 162f be driven with different motion profiles, with a simple mechanical design without separate axial drives the length compensation when forming the wire ends 34a - 34d to accomplish in the circumferential direction such that as possible no relative movement of the end portions of the wire ends 34a - 34d in the respective through the receiving holes 176 formed wire end reception 182 he follows.

In the above-described bending the wire ends 34a - 34d in the circumferential direction by means of the peripheral bending device 54 is the clamping device 50 continue between the case 18 and the bending device 54 arranged. The second rounded bending mold 102 on the clamping fingers 86 acts as a bending mold for the in one direction of rotation umzubieenden wire ends 34a . 34c and the third rounded bending shape 104 on the clamping fingers 86 acts as a bending mold for the wire to be reshaped in the other direction of rotation 34b . 34d , Due to the clamping device 50 also when forming the wire ends 34a - 34d in the circumferential direction, the position of the wire ends 34a - 34d maintained defined. The transformation takes place in the highest reproducible way. In addition, the slot insulation 24 protected.

After completion of the Drahtendenumformvorganges (cabinets), the clamping device 50 removed again, to which first the clamping fingers 84 be moved radially outward and so from the spaces between the wire ends 34a - 34d be moved out; then the clamping device 50 from the case 18 be solved and in the axial direction of the housing 18 be removed.

The housing 18 with the transformed wire ends 34a - 34d then moves to the next station in the component manufacturing apparatus 10 transported further, for example, to a biasing and / or fixing device 40 where the pairs of wire ends are captured and / or clamped together to perform cutting and welding operations.

As previously explained, are used to reshape the wire ends 34a - 34d the end portions thereof axially in a ring arrangement of receiving holes 176 inserted and then entangled by rotation of the ring assembly.

The receiving holes 176 are preferably on so-called Schränkkronen 180a - 180f trained, which are correspondingly highly loaded in an automated series production of stators and therefore should be serviced and / or replaced from time to time.

The following is based on the representations in the 19 to 33 the particular embodiment of preferred embodiments of the peripheral bending device 54 explains the easy replacement or easy assembly and disassembly of the recording and rotation units 162a - 162f enable.

19 shows an example of the fourth recording and rotation unit 162d and the 20 to 24 show an example of the first recording and rotation unit 162a , Like from the 19 to 24 can be seen, have the recording and rotation units 162a - 162f the cabinets 180a - 180f on, at which the ring assembly of receiving holes 176 are formed, which as Drahtendenaufnahmen 182 Act. The cabinets 180a - 180f are at one end of a cylinder jacket-shaped area 184a - 184f provided at the other end an annular disc flange 186a - 186f is formed by means of the receiving and rotating unit 162a via a detachable connection 188a - 188f with the respective, designed as a drive ring drive element 166a - 166f connected is.

In the 25 to 27 is a combination of the nested first to fourth recording and rotation unit 162a - 162d shown while the 28-33 a combination of the first to sixth recording and rotating device 160a - 160f show in different positions.

In this case, the first to sixth drive element 166a - 166f arranged one above the other, wherein the first drive element 166a is arranged at the top and the sixth drive element 166f is arranged at the bottom and the remaining drive elements 166b - 166e lie in between. Correspondingly, the cylinder jacket-shaped areas have 184a - 184f different extents in the axial direction, wherein the first cylinder jacket-shaped area 184a the region with the shortest axial extension and the sixth cylinder-jacket-shaped region 184f is the one with the longest axial extent. The sixth cylinder jacket-shaped portion has the smallest outer circumference just sized to be in the inner circumference of the fifth cylinder jacket-shaped portion 184e fits. That's why the fourth cylinder jacket-shaped area 184d arranged; completely outside is the first cylinder jacket-shaped area 184a arranged; the remaining cylinder jacket-shaped areas 184c are arranged in between.

How best of the 28 to 33 As can be seen, each of the first to sixth detachable connections 188a - 188f a series of distributed over the circumference arranged connecting bridges 190a - 190f on. Each connecting bridge 190a - 190f extends radially and each has a driven-side bridge element 192a - 192f at the recording and turning unit 162a - 162f , a drive-side bridge element 194a - 194f on the drive element 166a - 166f and a connecting element 196a - 196f for detachably connecting the bridge elements 192a-f . 194a-f on.

How best of the 19 to 24 can be seen, the output side bridge elements 192a - 192f than over the circumference of the ring flange 186a - 186f distributed, radially extending projections in the form of Anschraubflanschen formed with holes extending in the axial direction over half of the axial of the annular flange 186a - 186f extend.

The drive-side elements 194a - 194f are as on the inner circumference of the annular drive elements 196a - 196f formed inwardly projecting projections in the form of Anschraubflanschen with threaded holes whose axial height of the second half of the axial extent of the annular flange 186a -186f corresponds. The connecting elements 196a - 196f are predominantly formed by threaded bolts with their threaded shank in the threaded holes of the drive-side bridge elements 194a - 194f can be screwed, with their screw heads on the edges of the holes of the output side bridge elements 192a abutment and can be detected from above by means of a tool engagement. One of the connecting elements, for. As in the range of a boom, is designed differently, for example by a projection on one of the bridge elements 192a-f . 194a-f and a complementary recess on the other of the bridge members so as to ensure a predetermined relative position.

Like a comparison of 19 to 24 and the representations in the 25 to 27 show that form over the circumference of the annular flange 196a - 196f distributed output side bridge elements 192a - 192f a tooth structure whose pitch on the first to sixth recording and rotation unit 162a - 162f is equal to. Between the connecting bridges 190a - 190f are passages 198a - 198f formed, the clear width is dimensioned larger in the circumferential direction than the maximum extent of the bridge elements 192a-f . 194a-f in the circumferential direction. So can the bridge elements 192a - 192f . 194a-f in accordance rotated relative to each other recording and rotation unit 162a-f on the one hand and drive element 166a - 166f on the other hand are guided past each other in the axial direction.

Like from the 19 to 24 can be seen, are the Schränkkronen 180a - 180f each formed by the fact that at the end of the cylinder jacket-shaped area 184a - 184f axially extending longitudinal grooves 200 are milled, these longitudinal grooves 200 at their free ends insertion bevels 202 respectively. The number of longitudinal grooves 200 corresponds to the number n _{GN of} the housing grooves 20 , In this arrangement of distributed over the circumference longitudinal grooves 200 becomes a box crown ring 204 pushed so that the receiving holes 176 on three sides by the Längsnuten edges and on the radially outer side by the Schränkkronenring 204 are limited.

To replace these cupping crowns 180a - 180f a disassembly and assembly process is carried out, which in the following with reference to the representations in the 28 to 33 is explained in more detail.

The 28 and 29 show a starting position and operating position of the peripheral bending device 54 , Here are the first fasteners 196a solved. This can be done simply by tool attack on the screw heads. Subsequently, the first recording and turning unit 162a be removed upward, leading to the in 30 and 31 illustrated situation leads. How out 31 it can be seen here all bridge elements 192a - 192f . 194a - 194f aligned with each other.

The second control 70 contains a disassembly mode or assembly mode, with which the individual drive elements 166a - 166f individually for movement in a respective disassembly position are movable.

This is in the 32 and 33 for the first drive element 166a shown. This first drive element 166a becomes so in the disassembly position relative to the second drive element 166b and the still attached second recording and rotation unit 162b twisted that the second connection bridges 190b with the first passages 198a aligned; Preferably, the centers of the second connection bridges 190b with the centers of the first passages 198a aligned. In this position, the screw heads of the second connecting elements 196b through the first passages 198a accessible, so that the second connecting elements 196b are removable.

After removing the second fasteners 196b can be the second recording and rotating device 160b be removed by displacement in the axial direction upwards, wherein the second output side bridge elements 192b through the first passages 198a between the first drive-side bridge elements 194a of the first drive element 160a can be performed. Subsequently, also the second drive element 166b in the disassembly position, wherein the first and the second drive-side bridge elements 194a . 194b aligned with each other and through the first and second passage 198a . 198b through the third connecting elements 196c are accessible. After removing the third connecting elements, the third receiving and rotating unit 162c are removed in the axial direction, wherein the third output side bridge elements 192c through the corresponding first and second passages 198a . 198b between the corresponding drive-side bridge elements 194a . 194b the first and second drive element 166a . 166b be guided through. This process can be used to remove the other recording and rotating equipment 160d - 160f to repeat.

The assembly of the new recording and rotating equipment 160f - 160a then takes place accordingly in the reverse order, with the sixth recording and rotating device 160f is started while the first to fifth drive element 166a-e are in the disassembly position.

LIST OF REFERENCE NUMBERS

10

Bauteilherstellvorrichtung

12

hairpin

14

Drahtendenumformvorrichtung

16

Gehäuseherstellvorrichtung

18

casing

20

housing groove

22

Device for producing slot insulations

24

slot insulation

26

Hairpinherstellvorrichtung

28

Vorpositionierungsvorrichtung

30

Hairpineinsteckvorrichtung

32

winding head

34

wire end

34a

first wire end

34b

second wire end

34c

third wire end

34d

fourth wire end

36

Radial Drahtendenumformvorrichtung

38

Peripheral Drahtendenumformvorrichtung

40

Biasing and / or fixing device

42

Wire end cutter

44

Wire end welder

46

Devices for electrical contacting and / or testing and / or casting, ....

48a

first wire segment

48b

second wire segment

48c

third wire segment

48d

fourth wire segment

50

clamping device

52

Radial bending device

54

Peripheral bending device

56

first relative movement device

58

second relative movement device

60

transport device

62

control device

64

housing support

66

Housing holder driving

68

first control

70

second control

72

third control

74

first clamping device (inner clamping device)

76

second clamping device (outer clamping device)

78

Inner wall region

80

Washer body

82

annular flange

84

recess

85

peak power input

86

clamping fingers

87

retaining ring

88

gear shaft

90

bar member

92

Long hole

94

fixing screw

96

top

98

step

100

first rounded bending form (widths)

102

second rounded bending form (cabinets)

104

third rounded bending form (cabinets)

106

Receiving groove of the clamping device

108

first clamping area

110

second clamping area

112

radially movable segment

114

Basic body of the clamping device

116

washer

118

drive thread

120

cone-shaped drive element

122

annular recess

124

baseplate

126

Base plate drive means

128

drive plate

130

Drive plate driving means

132

grab

134

gripper unit

136

travel bar

138

gripper carriages

140

first jaw

142

second gripping jaw

144

guide block

146

first guide groove

148

second guide groove

150

link pin

152

scenery

154

free end of a jaw

156

Projection at the free end of the jaw

158

clamping surface

160a

first pick-up and turning device

160b

second recording and rotating device

160c

third recording and rotating device

160d

fourth recording and rotating device

160e

fifth pick-up and rotation device

160f

sixth recording and rotating device

162a

first recording and turning unit

162b

second recording and turning unit

162c

third recording and rotation unit

162d

fourth recording and rotation unit

162e

fifth recording and turning unit

162f

sixth recording and turning unit

164a

first drive device

164b

second drive device

164c

third drive device

164d

fourth drive device

164e

fifth drive device

164f

sixth drive device

166a

first drive element

166b

second drive element

166c

third drive element

166d

fourth drive element

166e

fifth drive element

166f

sixth drive element

168a

first actor

168b

second actor

168c

third actor

168d

fourth actor

168e

fifth actor

168f

sixth actor

170a

first ring carrier

170b

second ring carrier disk

170c

third ring carrier

170d

fourth ring carrier

170e

fifth ring carrier

170f

sixth ring carrier disk

172

machine frame

174

mounting column

176

receiving holes

180a

first cupping crown

180b

second crown

180c

third crown

180d

fourth cabin crown

180e

fifth crown

180f

sixth crown

182

Wire end recording

184a

first cylinder jacket-shaped area

184b

second cylinder jacket-shaped area

184c

third cylinder jacket area

184d

fourth cylinder jacket area

184e

fifth cylinder jacket-shaped area

184f

sixth cylinder jacket-shaped area

186a

first ring flange

186b

second annular flange

186c

third ring flange

186d

fourth ring flange

186e

fifth ring flange

186f

sixth ring flange

188a

first detachable connection

188b

second detachable connection

188c

third detachable connection

188d

fourth detachable connection

188e

fifth detachable connection

188f

sixth detachable connection

190a

first connecting bridge

190b

second connecting bridge

190c

third connecting bridge

190d

fourth connecting bridge

190e

fifth connecting bridge

190f

sixth connecting bridge

192a

first output-side bridge element

192b

second output-side bridge element

192c

third output-side bridge element

192d

fourth output-side bridge element

192e

fifth output-side bridge element

192f

sixth output-side bridge element

194a

first drive-side bridge element

194b

second drive-side bridge element

194c

third drive-side bridge element

194d

fourth drive-side bridge element

194e

fifth drive-side bridge element

194f

sixth drive-side bridge element

196a

first connecting element

196b

second connecting element

196c

third connecting element

196d

fourth connection element

196e

fifth connecting element

196f

sixth connecting element

198a

first passage

198b

second passage

198c

third passage

198d

fourth passage

198e

fifth passage

198f

sixth passage

200

longitudinal groove

202

chamfer

204

Schränkkronenring

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 6519993 B2 [0006]
• DE 102017129474 [0070]
• DE 102017113617 [0073]
• DE 102017114932 [0077]

Claims (15)

Wire end forming apparatus (14, 36, 38) for use in manufacturing a spooled electrical machine component, for forming wire ends (34, 34a-34d) extending from an annular housing (18) of the component, comprising a bending device (52, 52; 54) for bending wire ends (34, 34a-34d) in a radial direction and / or in the circumferential direction and a clamping device (50) which can be arranged between the housing (18) and the bending device (52, 54) for holding the wire ends (34, 34). 34a-34d) during bending by the flexure (52, 54). Wire end forming device (14, 36, 38) after Claim 1 characterized in that the clamping device (50) comprises a first clamping means (74) fixed to the housing (18) or stationary and a second clamping means (76) movable relative to the first clamping means (74) for connecting wire ends between them first clamping device (74) and the second clamping device (76) to jam. Wire end forming device (14, 36, 38) after Claim 2 , characterized in that the first clamping device (74) 3.1 is disc-shaped and / or annular and / or 3.2 for supporting on inner wall portions (78) of the housing (18), which are arranged between grooves (20) of the housing, in which Wire ends (34a-34d) having wire segments (48a-48d) are arranged, and / or a plurality of fixing to inner wall portions (78) of the housing (18), which are arranged between grooves (20) of the housing (18) in which the wire segments (48a-48d) having wire ends (34a-34d) can be arranged, radially movable segments (112), and / or radially movable segments (112) and an axially movable drive element (120) for jointly driving the segments Radial movement of the segments (112) via a conical control surface, and / or 3.5 a first clamping portion (108) for abutment on radially inner sides of radially inner wire ends (34d) of the grooves (20) of the housing (18) forth protruding wire ends (34a-34d). Wire end forming device (14, 36, 38) according to any one of the preceding claims, characterized in that the clamping device (50) comprises a number of radially movable clamping fingers (86) for clamping the wire ends (34a-34d). Wire end forming device (14, 36, 38) after Claim 4 , so far Claim 2 or 3 relative back, characterized in that the clamping fingers (86) are formed on the second clamping means (76) and 5.1 are adapted to jam the wire ends (34a-34d) to the first clamping means (74), and / or 5.2 each an engaging end (96) for engaging in a corresponding complementary recess (84) on the first clamping device (74). Wire end forming apparatus (14, 36, 38) according to any one of the preceding claims, characterized in that the clamping device (50) has rounded bending dies (100, 102, 104) for shaping at the wire ends (34a-34d) during bending. Wire end forming device (14, 36, 38) after Claim 6 and after one of the Claims 4 or 5 , characterized in that at least one of the bending molds (100, 102, 104) is formed on each of the clamping fingers (86). Wire end forming device (14, 36, 38) according to any one of Claims 4 . 5 or 7 characterized in that the clamping fingers (86) 8.1 are formed in a number corresponding to the number of groups of wire ends to be clamped together and / or the number of grooves (20) of the housing (18) of the component to be manufactured, and / or 8.2 each for common clamping of all together from the associated groove (20) of the housing (18) projecting wire ends (34a-34d) are formed and / or 8.3 on a retaining ring (87) jointly or synchronously driven radially slidably guided, and / or 8.4 each having a step (98) formed second clamping portion (110) for abutment on a radially outer side of the radially outer wire end (34a) from the associated groove (20) of the housing (18) projecting wire ends (34a-34d) , and / or 8.5 each have at the free end a tapered tip (96), and / or 8.6 at their free ends a step (98) such that between adjacent in clamping position be sensitive clamping fingers (86) is formed a receiving groove (106) for two, three, four, five, six or more together from the associated groove (20) of the housing (18) protruding wire ends (34a-34d), wherein the receiving groove (106 ) on a substantially radial side and on substantially circumferential sides of said one clamping finger (86) and on another substantially radially extending side of the other Clamping finger (86) is limited and is open at another substantially circumferentially extending side; and / or 8.7 are biased by spring elements in one of their directions of movement; and / or 8.8 spring elements for effecting a uniform clamping force of several or all of the clamping fingers. Clamping device (50) for a wire end forming device (14, 36, 38) according to any one of the preceding claims. Clamping device (50) after Claim 9 characterized by one, several or all of the following features: 10.1 that the clamping device (50) has a first clamping device (74) or a fixedly fixable to the housing (18) and a second clamping device (76), which relative to the first clamping device ( 74) is movable to clamp wire ends (34, 34a-34d) between the first clamp (74) and the second clamp (76); 10.2 that the clamping device (50) has a first clamping device (74) which can be fixed fixedly on the housing (18) and a second clamping device (76) which is movable relative to the first clamping device (74) in order to provide wire ends (34, 34a). 34d) between the first clamping device (74) and the second clamping device (76) and that the first clamping device (74) is disc-shaped and / or ring-shaped and / or 10.2.2 for supporting on inner wall regions (78) of the Housing (18) which are arranged between grooves (20) of the housing (18), in which the wire ends (34, 34a-34d) having wire segments (48a-48d) can be arranged, is formed and / or 10.2.3 more to Fixing to inner wall portions (78) of the housing (18), which are arranged between grooves (20) of the housing (18), in which the wire segments (48a-48d) having wire ends (34, 34a-34d) can be arranged radially movable segments and / or 10.2.4 radially movable segm and an axially movable drive element (120) for jointly driving the radial movement of the segments via a conical control surface and / or 10.2.5 a first clamping region (74) for abutment on radially inner sides of radially inwardly disposed wire ends (34, 34a-34d) of the grooves (20) of the housing (18) projecting wire ends (34, 34a-34d); 10.3 that the clamping device (50) has a number of radially movable clamping fingers (86) for clamping the wire ends (34, 34a-34d); 10.4 that the clamping device (50) has a number of radially movable clamping fingers (86) for clamping the wire ends (34, 34a-34d) and that the clamping fingers (86) on a second of a plurality of relatively movable clamping means (74, 76) is formed and 10.4.1 are designed to clamp the wire ends (34, 34a-34d) to a first clamping device (74) to be fixed in place and / or on the housing (18), and / or 10.4.2 in each case an engagement end to the having positive engagement with a corresponding complementary recess (84) on the first clamping means (74); 10.5 that the clamping device (50) has rounded bending shapes (100, 102, 104) for shaping at the wire ends (34, 34a-34d) during bending; 10.6 that the clamping device (50) has a number of radially movable clamping fingers (86) for clamping the wire ends (34, 34a-34d) and that the clamping fingers (86) 10.6.1 are formed in a number that corresponds to the number of groups of to be clamped together wire ends (34, 34a-34d) and / or the number of grooves (20) of the housing (18) of the component to be manufactured, and / or 10.6.2 respectively for common clamping all together from the associated groove (20) 10.6.3 are guided radially displaceably together and / or 10.6.3 on a retaining ring (87) driven together or synchronously driven, and / or 10.6.4 each one at a step (98) of the housing (18). formed second clamping portion (108) for abutment on a radially outer side of the radially outer wire end of the associated groove (20) of the housing (18) projecting wire ends (34, 34a-34d) and / or 10.6.5 each at the free End a konisc h have tapered tip and / or 10.6.6 have at their free ends a step such that between adjacent clamping position clamping fingers (86) a receiving groove for two, three, four, five, six or more together from the associated groove (20 ) of the housing (18) projecting wire ends (34, 34a-34d), wherein the receiving grooves on a substantially radially extending side and on a substantially circumferentially extending sides of the one clamping finger (86) and at another in the Substantially radially extending side is bounded by the other clamping finger (86) and is open at another substantially circumferentially extending side; and / or 10.6.7 is at least one rounded bending mold (100, 102, 104) for shaping at the wire ends (34, 34a-34d) during bending; and / or 10.6.8 are biased by spring elements in one of their directions of movement; and or 10.6.9 have spring elements for effecting a uniform clamping force of several or all of the clamping fingers. A component manufacturing apparatus (10) for manufacturing a bobbin-mounted component of an electrical machine, comprising a wire end forming device (14, 34, 36) according to any one of Claims 1 to 8th and / or a clamping device (50) according to Claim 9 or 10 , In the course of the production of a coil-equipped component of an electrical machine feasible and / or to be performed Drahtendenumformverfahren for forming from an annular housing (18) of the component projecting wire ends (34, 34a-34d), comprising the step: a) bending the wire ends (34, 34a-34d) in a radial direction and / or in the circumferential direction by means of a free wire ends (34, 34a-34d) detecting bending device (52, 54) and the before and / or at least temporarily during or in total during step a) step to be performed b) clamping the wire ends (34, 34a-34d) by means of a between the housing (18) and the bending device (52, 54) arranged clamping device (50). Wire end forming method Claim 12 characterized by at least one, several or all of the steps of: 13.1 fixing a first clamping device (74) to the housing (18) or stationary and moving a second clamping device (76) relative to the first clamping device (74) to engage the wire ends (34 34a-34d) between the first and second clamping means (74, 76); 13.2 joint jamming all of a groove (18) of a housing (20) outstanding wire ends (34, 34a-34d); 13.3 fixing a first one of a plurality of relatively movable clamping means (74, 76) to inner wall portions (78) of the housing (18) disposed between grooves (20) of the housing (18); 13.4 radially moving a plurality of segments (112) of a first of a plurality of relatively movable clamping means (74, 76) for fixing the first clamping means (74) to the housing (18) and / or for disengaging from the housing (18); 13.5 driving a radial movement of a plurality of segments (112) of a first of a plurality of relatively movable clamping means (74, 76) for fixing the first clamping means (74) on the housing (18) and / or for releasing the housing (18) by means of a axially movable drive member (120) and transmitting the axial movement to the segments by means of a control surface or a conical surface; 13.6 abutment of a first clamping region (74) formed on a first of a plurality of radially relative to each other movable clamping devices (74, 76) on radially inner sides of radially inner wire ends (34, 34a-34d) of the grooves (20) of the housing ( 18) projecting wire ends (34, 34a-34d); 13.7 moving radially corresponding to the number of groups of wire ends (34, 34a-34d) to be clamped together and / or of grooves (20) in the housing provided number of clamping fingers (74, 76) for jamming the wire ends (34, 34a) 34d) or for releasing the clamp; 13.8 clamping each one group of wire ends (34, 34a-34d) between a first clamping device (74) and in each case a radially movable clamping finger (86) of a second clamping device (76); 13.9 Supporting Clamping Fingers (86) Moving in Clamping Position against Displacement in a Peripheral Direction or in an Axial Direction 13.10 Supporting Clamping Fingers (86) Moving in Clamping Position Against Displacement in a Circumferential or Axial Direction via Positive Engagement of Each Clipping Finger ( 86) into one or a complementary detection unit; 13.11 supporting clamping fingers (86) moving in clamping position against displacement in a circumferential direction or in an axial direction via positive engagement of a tip of each clamping finger (86) of a second clamping device (76) with a corresponding tip receiving groove on a first clamping device (74) ; 13.12 forming the wire ends (34, 34a-34d) under abutment with the clamping device (50) arranged bending shapes or bending edges; 13.13 jointly and / or synchronously driving the radial movement of clamping fingers (86) for clamping the wire ends (34, 34a-34d); 13.14 jointly guiding the radial movement of clamping fingers (86) on a retaining ring (87); and / or accepting the two, three, four, five, six or more wire ends (34, 34a-34d) to be jammed together from a groove (20) of the housing (18) in a receiving groove defined by adjacent clamping fingers (86 at its free ends, wherein the receiving grooves on one substantially radially extending side and on a substantially circumferentially extending side of the one clamping finger (86) and at another substantially radially extending side of the other clamping finger ( 86) is limited and open at another substantially circumferentially extending side; and / or 13.16 biasing the clamping fingers in one of their directions of movement with a same predetermined clamping force; 13.17 Generating a uniform contact force by spring elements. Use of a clamping device (50) in the manufacture of a coil-provided component of an electrical machine during wire forming, wherein the wire ends (34, 34a-34d) projecting from a housing (18) of the component are radially and / or by means of a bending device (52). or circumferentially, wherein the clamping device (50) between the housing (18) and the bending device (52) is arranged and there holds the wire ends (34, 34a-34d) during its bending by the bending device. Use after Claim 14 characterized by one, several or all of the following features: 15.1 that the clamping device (50) has a first clamping device (74) or fixed in a fixed manner on the housing (18) and a second clamping device (76) which is movable relative to the first clamping device ( 74) is movable to clamp wire ends between the first clamping means (74) and the second clamping means (76); 15.2 that the clamping device (50) has a first clamping device (74) which can be fixed fixedly on the housing (18) and a second clamping device (76) which is movable relative to the first clamping device (74) in order to secure wire ends (34, 34a) 34d) between the first clamping device (74) and the second clamping device (76) and that the first clamping device (74) 15.2.1 is disc-shaped and / or annular and / or 15.2.2 for supporting on inner wall portions (78) of Housing (18) which are arranged between grooves (20) of the housing (18), in which the wire ends (34, 34a-34d) having wire segments (48a-48d) can be arranged, is formed and / or 15.2.3 more to Fixing to inner wall regions (78) of the housing (18), which are arranged between grooves (20) of the housing (18), in which the wire ends (48, 34a-34d) can be arranged with wire segments (48a-48d), has radially movable segments (112) and / or 15.2. 4 radially movable segments (112) and an axially movable drive element (120) for jointly driving the radial movement of the segments via a conical control surface and / or 15.2.5 a first clamping portion (108) for abutment on radially inner sides of radially inner wire ends (34, 34a-34d) having the wire ends (34, 34a-34d) projecting from the grooves (20) of the housing (18); 15.3 that the clamping device (50) has a number of radially movable clamping fingers (86) for clamping the wire ends (34, 34a-34d); 15.4 that the clamping device (50) has a number of radially movable clamping fingers (86) for clamping the wire ends (34, 34a-34d) and that the clamping fingers (86) are formed on a second of a plurality of clamping devices (74, 76) and 15.4 .1 are adapted to clamp the wire ends (34,34a-34d) to a first clamping device (74) to be fixed in place and / or on the housing (18), and / or 15.4.2 each an engaging end for engaging in a corresponding complementary recess (84) on the first clamping device (74); 15.5 that the clamping device (50) has rounded bending shapes for shaping at the wire ends (34, 34a-34d) during bending; 15.6 that the clamping device (50) has a number of radially movable clamping fingers (86) for clamping the wire ends and that the clamping fingers (86) 15.6.1 are formed in a number corresponding to the number of groups of wire ends (34, 34a-34d) and / or the number of grooves (20) of the housing (18) of the component to be manufactured, and / or 15.6.2 respectively for common clamping of all together from the associated groove (20) of the housing (18) protruding wire ends (34, 34a-34d) are formed and / or 15.6.3 are guided on a retaining ring (87) driven together radially displaceable and / or 15.6.4 each at a step (98) formed second clamping region (110) for abutment a radially outer side of the radially outer wire end (34, 34a-34d) of the from the associated groove (20) of the housing (18) projecting wire ends (34, 34a-34d) and / or 15.6.5 each at the free end one tapered S have (96) and / or 15.6.6 at their free ends a step (98) such that between adjacent clamping position clamping fingers (86) has a receiving groove for two, three, four, five, six or more together from the associated grooves (20) of the housing (18) protruding wire ends (34, 34a-34d) is formed, wherein the receiving grooves on a substantially radially extending side and on a substantially circumferentially extending sides of the one clamping finger (86) and is bounded at another substantially radially extending side by the other clamping finger (86) and is open at another substantially circumferentially extending side, and / or 15.6.7 at least one rounded bending shape for shaping at the wire ends (34, 34a-34d) during bending.

Images