EP3127128A1 - Winding device and method for the operation thereof - Google Patents

Winding device and method for the operation thereof

Info

Publication number
EP3127128A1
EP3127128A1 EP15713421.4A EP15713421A EP3127128A1 EP 3127128 A1 EP3127128 A1 EP 3127128A1 EP 15713421 A EP15713421 A EP 15713421A EP 3127128 A1 EP3127128 A1 EP 3127128A1
Authority
EP
European Patent Office
Prior art keywords
bobbin
guide tube
wire guide
wire
winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15713421.4A
Other languages
German (de)
French (fr)
Other versions
EP3127128B1 (en
Inventor
Thomas Meier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meteor AG
Original Assignee
Meteor AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meteor AG filed Critical Meteor AG
Publication of EP3127128A1 publication Critical patent/EP3127128A1/en
Application granted granted Critical
Publication of EP3127128B1 publication Critical patent/EP3127128B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/096—Dispensing or feeding devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/082—Devices for guiding or positioning the winding material on the former
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/094—Tensioning or braking devices

Definitions

  • the invention relates to a winding device for producing an electrical coil by winding a coil wire on a bobbin and a method for operating the winding device.
  • Winding devices for producing electrical coils with a coil wire are known from the prior art. These have one or more bobbin receptacles on which to arrange the coil body to be wound and to store rotatably. Furthermore, these winding devices have wire guide tubes, through which a coil wire to the respective coil body to be wound can be guided.
  • the wire guide tube is held in a receptacle and traversed by it parallel to a rotation axis of the bobbin, wherein a travel speed of the Drahtsammlung- tube is controlled depending on a rotational speed of the bobbin and a thickness of the coil wire.
  • the invention is based on the object to provide an improved winding device and an improved method for their operation.
  • the object is achieved by a winding device with the features of claim 1 and by a method having the features of claim 10.
  • a winding device is suitable for producing an electrical coil by winding a coil wire onto a bobbin, wherein the winding device comprises:
  • At least one wire guide tube each associated with a bobbin receptacle, through which a coil wire can be guided to the respective bobbin to be wound, wherein the wire guide tube can be guided at least traversingly parallel to a rotation axis of the bobbin receptacle.
  • At least one force measuring device is provided for measuring a force acting on the wire guide tube in at least one direction lying radially to a longitudinal axis of the wire guide tube.
  • the coil wire occurs only in certain stages of the winding process along the longitudinal axis of the wire guide tube from this, for example, only when winding a certain position of the coil.
  • a pulling force acting on the reel wire may be determined by means of a wire tensioner which may be provided on the reeling device and through which the reel wire passes prior to reaching the wire guide tube.
  • the radial component of the force acting on the wire guide tube force during the extraction of the coil wire can be determined when the coil wire emerges from the longitudinal axis of the wire guide tube in an angle therefrom.
  • the tensile force of the coil wire at an inlet of the wire guide tube is also determined by the wire tension regulator in this case. However, it also results in a frictional force of the coil wire at the outlet of the wire guide tube, which adds to the determined by the wire tension regulator traction. If an exit angle of the coil wire from the wire guide tube with respect to its longitudinal axis known, it can be determined by a trigonometric calculation of this angle and the measured radial component of the force acting on the wire guide tube force acting on the coil wire after the outlet of the wire guide tube tensile force.
  • the bobbin typically has a winding area, comprising at least one surface lying parallel to the axis of rotation, and two flanges delimiting the winding area at its ends. At least one of the flanges has at least one, for example, radially arranged to the axis of rotation slot through which the coil wire before starting the winding process, for example, from a bobbin post, can be performed from the outside into the winding area and after the end of the winding process out of the winding area , so that the coil wire enters the winding area largely axially.
  • the guiding of the coil wire into and out of the winding area through the slot (s) can also be done by appropriate method of the wire guide tube.
  • the coil wire can be determined on the basis of the determined by the force measuring device force curve, whether the coil wire was passed correctly through the slot. For example, in the event of improper guiding, the coil wire can be guided over the edge of the flange instead of through the slot, resulting in a significantly higher pulling force. If the coil wire subsequently slides into the slot, a corresponding drop in tensile force results.
  • a receiving device for the wire guide tube may be provided.
  • the exposed by the oblique discharge of the coil wire wear wire guide tube is thus interchangeable.
  • the force measuring device may be arranged on the receiving device and / or the wire guide tube itself and comprise, for example, at least one strain gauge. Strain gauges are particularly inexpensive and widely used, suitable for force measurement sensors. With the aid of the strain gauge, a deformation of the material of the receptacle and / or the wire guide tube due to the radial force is determined.
  • the strain gauge may be formed for measurement in one or in two directions radially of a longitudinal axis of the wire guide tube. Similarly, two mutually offset by 90 ° strain gauges may be provided for measuring in two directions.
  • other suitable sensors such as piezoelectric sensors can be used.
  • a monitoring device is connected to the force measuring device.
  • measured values determined by the force measuring device can be recorded. These measured values can then be assigned to the individual coil. It can be made over the entire winding process, a continuous or periodic measurement of the forces occurring and recorded by the monitoring device.
  • the monitoring device may be integrated in a machine control of the winding device.
  • At least one parking pin is provided, on which the coil wire can be fixed before and / or after a winding process.
  • the coil wire is terminated on a bobbin post, ie, wound, for example by guiding the wire guide tube helically around the bobbin post.
  • the coil wire is then removed from the bobbin post. Post led to arranged on the winding device parking pen and fixed there. Subsequently, the coil wire between the bobbin post and parking pin is separated, for example by tearing or by means of a knife. The knife can be firmly connected to the receiving device of the wire guide tube or otherwise be guided.
  • another force measuring device for example a strain gauge, can be arranged to measure a force acting on the parking pin. If the coil wire is separated between the parking pin and the bobbin post, the tensile force acting on the coil wire can be determined by the additional force measuring device arranged on the parking pin. If the knife is firmly connected to the receiving device of the wire guide tube, the force measuring device arranged on the receiving device can also carry out this measurement. Before winding another coil, the coil wire fixed at its end to the parking pin is guided by means of the wire guide tube to another bobbin post on the bobbin, terminated there and then separated the coil wire between the parking pen and bobbin posts by cutting or tearing.
  • a strain gauge for example a strain gauge
  • the monitoring of these processes by means of at least one of the force measuring devices makes it comprehensible whether the coil wire was actually cut or torn, for example by means of a sudden drop in the measured force. Otherwise, the uncut end of the coil wire could be wrapped in the coil and cause a short circuit.
  • the monitoring device has calculation means for the trigonometric calculation of a force acting on the coil wire in the longitudinal direction of the force determined by means of the force measuring device and an exit angle of the coil wire from the wire guide tube with respect to its longitudinal axis.
  • an optical measuring device for example a camera, may be provided for determining the exit angle and connected to the monitoring device.
  • the monitoring device may comprise means for monitoring a progress of the winding process, for example integrated in the machine control, by means of which at least one current position of the wire guide tube can be determined relative to the bobbin and, accordingly, the exit angle can be determined.
  • a progress of the winding process for example integrated in the machine control, by means of which at least one current position of the wire guide tube can be determined relative to the bobbin and, accordingly, the exit angle can be determined.
  • Body can thus approximately determine an exit angle and the trigonometric calculation are used, which is used for a sufficiently accurate determination of the tensile force.
  • the means for monitoring the progress of the winding process for determining a radial distance of a currently wound layer to the axis of rotation of the bobbin receiving and to take into account Radial distance are formed in the determination of the exit angle. The exit angle and thus the tensile force can be determined with a high and over the entire winding constant accuracy.
  • a plurality of bobbin receptacles for receiving respective bobbin and a plurality of wire guide tubes may be provided, each of which is associated with each bobbin receptacles, wherein the winding device is designed for synchronous winding of the bobbin, wherein the monitoring device for Monitoring the forces on each of the wire guide tubes and comparing them with one another.
  • a method of operation of the winding device can be determined by comparing the forces occurring at each of the wire guide tubes in the synchronous winding of the bobbin whether deviations from the other coils occur on one or more of the coils, which indicate overstretching or tearing of the coil wire and possibly require operator intervention.
  • a typical force profile over the winding process can be determined in a master measurement or in a test series over a large number of winding processes of similar coils. Especially in bobbins with rectangular or square cross section occur - -
  • a retention force of the wire tensioner can be proactively controlled based on the determined in the master measurement or the test series force curves that caused by the polygonal cross section of the bobbin changes the force acting on the coil wire tensile force by appropriate Reduction of the retention force of Drahtzugreglers be at least largely compensated. In this way, peak values of the tensile force are reduced. By controlling the retention force of the wire tension controller in real time, this is achieved only to a much lesser extent.
  • a tolerance field can be set over the force profile determined in the master measurement or the test series, so that a window results within which the tensile forces determined during a real winding process should lie. If the pulling forces are outside this window, an error message can be generated.
  • FIG. 1 shows a schematic side view of a wire guide tube
  • FIG. 2 shows a schematic longitudinal section of the wire guide tube
  • FIG. 3 is a schematic perspective view of a receiving device with a wire guide tube and a coil wire, a schematic representation of a winding device with a receiving device and a wire guide tube, - -
  • Figure 5 is a schematic representation of another embodiment of a receiving device with a wire guide tube
  • FIG. 6 shows a schematic longitudinal section through an embodiment of the wire guide tube.
  • FIG. 1 shows a schematic side view of a wire guide tube 1.
  • FIG. 2 shows a schematic longitudinal section of the wire guide tube 1.
  • the wire guide tube 1 comprises a substantially cylindrical section 1.1 and a base 1.2 for receiving in a receiving device of a winding device for producing an electrical coil by winding a coil wire on a bobbin.
  • a bore 1.5 for guiding a coil wire is introduced between an inlet 1.3 on the base 1.2 and an outlet 1.4 on the cylindrical section 1.1.
  • At least one or two force measuring devices 8 may be provided on the wire guide tube, for example in a groove lying between the cylindrical portion 1.1 and the base 1.2 1.6, which at least partially has a smaller outer diameter than the cylindrical portion 1.1 and is easier to deform ,
  • the at least one force-measuring device 8 is provided for measuring a force acting on the wire guide tube 1 in at least one direction x, y lying radially to the longitudinal axis L of the wire guide tube 1.
  • the two illustrated force measuring devices 8 are arranged on the circumference of the groove 1.6 offset by about 90 °, so that one of the force measuring devices 8 acting on the wire guide tube 1 force in the direction x and the other of the force measuring devices 8, the force acting on the wire guide tube 1 in force can measure the direction y. - -
  • FIG. 3 shows a schematic perspective view of a receiving device 2 of a winding device for producing an electrical coil by winding a coil wire 3 onto a coil former.
  • a wire guide tube 1 is arranged interchangeably.
  • a coil wire 3 is passed through the wire guide tube 1.
  • FIG. 4 is a schematic representation of a winding device 4 with a receiving device 2 and a wire guide tube 1.
  • the winding device 4 further comprises a rotatably mounted and provided with a drive 5 bobbin receptacle 6 for receiving a bobbin 7.
  • a coil wire 3 is guided to be wound bobbin 7, wherein the wire guide tube 1 by the receiving device 2 at least traversing parallel to a Rotation axis R of the bobbin receptacle 6 is feasible.
  • the wire guide tube 1 is feasible in further degrees of freedom.
  • At least one force measuring device 8 is provided for measuring a force acting on the wire guide tube 1 in at least one direction x, y lying radially to the longitudinal axis L of the wire guide tube 1.
  • the coil wire 3 occurs only at certain stages of the winding process along the longitudinal axis L of the wire guide tube 1 from this, for example, only when winding a particular position of the coil 7.
  • a tensile force acting on the coil wire 3 can be determined by means of a wire tension regulator 9, which can be provided on the winding device 4 and through which the coil wire 3 extends before reaching the wire guide tube 1.
  • a force acting on the wire guide tube 1 in at least one radial direction x, y can be determined if the coil wire 3 emerges from the exit angle ⁇ deviating from the longitudinal axis L of the wire guide tube 1 - -
  • the tensile force of the coil wire 3 at the inlet 1.3 of the Draht societyrschreib- chens 1 is also determined by the wire tension regulator 9 in this case. However, it also results in a frictional force of the coil wire 3 at the outlet 1.4 of the wire guide tube 1, which adds to the determined by the wire tension regulator 9 traction. If the exit angle ⁇ of the coil wire 3 from the wire guide tube 1 with respect to its longitudinal axis L is known, then the force acting on the wire guide tube 1 can be determined from this exit angle ⁇ and the measured radial component by means of a trigonometric calculation on the coil wire 3 after the outlet 1.4 Wire guide tube 1 acting tensile force can be determined.
  • the force measuring device 8 can be arranged on the receiving device 2 and / or the wire guide tube 1 itself and, for example, comprise at least one strain gauge.
  • the strain gauge may be configured to measure in one or two directions, or a plurality of staggered strain gauges may be provided.
  • a monitoring device 10 is connected to the force measuring device 8. By means of the monitoring device 10, measured values determined by the force-measuring device 8 can be recorded. These measured values can then be assigned to the respective coil 7. It can be made over the entire winding process, a continuous or periodic measurement of the forces occurring and recorded by the monitoring device 10.
  • the monitoring device 10 is integrated in a machine control 12 of the winding device 4, which also controls the rotation of the drive 5 for the bobbin case 6, the movements of the receiving device 2 for the wire guide tube 1 and the pulling force of the wire tensioner 9, for example.
  • a parking pin 13 may be provided, on which the coil wire 3 can be fixed before and / or after a winding process.
  • a further force measuring device 14 for example, a Deh- - -
  • the voltage measuring strip be arranged for measuring a force acting on the parking pin 13 force. If the coil wire 3 is separated between the parking pin 13 and bobbin 7, the tensile force acting on the coil wire 3 can be determined by the force measuring device 14 arranged on the parking pin 13, for example by means of a knife or, if the coil wire 3 is correspondingly thin, by tearing by means of the wire guide tube 1. If the knife is firmly connected to the receiving device 2 of the wire guide tube 1, optionally also arranged on the receiving device 2 force measuring device 8 make this measurement.
  • the monitoring device 10 has calculation means for trigonometrically calculating a force acting on the coil wire 3 in the longitudinal direction of the force determined by the force measuring device 8 and the exit angle ⁇ of the coil wire 3 from the wire guide tube 1 with respect to its longitudinal axis L.
  • an optical measuring device 11 for example a camera, can be provided for determining the exit angle ⁇ and connected to the monitoring device 10.
  • the monitoring device 10 may comprise means for monitoring a progress of the winding process, for example integrated in the machine control, by means of which at least one current position of the wire guide tube 1 relative to the bobbin 7 can be determined and accordingly the exit angle ⁇ can be determined.
  • the exit angle ⁇ can be determined for small coils 7 with few windings and relatively large distance of the outlet 1.4 of the wire guide tube 1 to the bobbin 7 so approximately the exit angle ⁇ determined and the trigonometric calculation are used, which is used for a sufficiently accurate determination of the tensile force.
  • a plurality of bobbin receptacles 6 for receiving respective bobbin 7 and a plurality of Draht societyrschreib- chen 1 may be provided, each of which is associated with each bobbin receptacles 6, wherein the winding device 4 is formed for synchronous winding of the bobbin 7, wherein the Monitoring device 10 for monitoring the forces on each of the wire guide tubes 1 and their comparison is formed with each other.
  • a method for operating the winding device 4 can be determined by comparing the forces occurring at each of the wire guide tubes 1 in the synchronous winding of the bobbin 7, 7 deviations from the other bobbins 7 occur on one or more of the bobbin 7, the overstretch or a Tear the coil wire 3 point and possibly require operator intervention.
  • a typical force profile over the winding process can be determined in a master measurement or in a test series over a large number of winding processes of similar coils.
  • a restraining force of the wire tension regulator 9 can be proactively controlled on the basis of the force curves determined in the master measurement or the test series, so that changes in the tensile force acting on the coil wire 3 are at least minimized by corresponding reduction of the retention force of the wire tension regulator 9 be largely compensated.
  • a tolerance field can be set over the force profile determined in the master measurement or the test series, so that a window results within which the tensile forces determined during a real winding process should lie. If the pulling forces are outside this window, an error message can be generated.
  • the detected forces can be used to detect voltage spikes occurring in the course of a winding program. If such voltage spikes occur, the program can be adjusted by appropriate measures, such as changing the travel or reduction of the wire tension, reducing the acceleration or deceleration and the Vergeschgeschwmdtechnik so that these spikes no longer occur. An existing characteristic or an overlying envelope can then serve as a master for monitoring the current production operation, wherein occurring overruns or underruns of the tensile force detected and the corresponding coils can be removed as bad coils. Likewise, the wire tension can be regulated on the basis of the detected tensile forces.
  • Figure 5 shows a schematic representation of another embodiment of a portion of a receiving device 2 with a wire guide tube 1.
  • the receiving device 2 has a first region 2.1, in which a bore extends, in which the wire guide tube 1 is received.
  • the receiving device 2 With a second region 2.2, the receiving device 2 is connected to a part of the winding device 4 such that the receiving device 4 can be guided at least traversingly parallel to an axis of rotation R of the bobbin receptacle 6 (not shown).
  • the receiving device 2 has an intermediate region 2.3 of reduced thickness, for example in the form of a groove, in which a force measuring device 8, for example a further strain gauge, is provided which acts on the wire guide tube 1 in the direction of the longitudinal axis L.
  • Figure 6 shows a schematic longitudinal section through an embodiment of the wire guide tube 1, which is accommodated in a reusable sleeve 15 which serves as a base and in turn can be received in the bore of the Frevorrich- device 2 (not shown).
  • the hollow groove 1.6 shown in FIG. 1 is replaced in this case by a groove 15.1 provided on the sleeve 15, in which the at least one force-measuring device 8, in particular one or two strain gauges, can be arranged.
  • the wire guide tube 1 is easier to replace, for example, when it is worn.

Abstract

The invention relates to a winding device (4) for producing an electric coil by winding a coil wire (3) onto a coil former (7), wherein the winding device (4) comprises: - at least one rotatably mounted coil former holder (6), provided with a drive (5), for holding a coil former (7), - at least one small wire-guiding tube (1) assigned to in each case one coil former holder (6), a coil wire (3) being guidable by said small wire-guiding tube (1) to the particular coil former (7) to be wound, wherein the small wire-guiding tube (1) is guidable at least in a traversing manner parallel to a rotation axis (R) of the coil former holder (6), wherein at least one force-measuring device (8) for measuring a force acting on the small wire-guiding tube (1) is provided in at least one direction (x, y) extending radially to a longitudinal axis (L) of the small wire-guiding tube (1).

Description

Wickelvorrichtung und Verfahren zu deren Betrieb  Winding device and method for its operation
Die Erfindung betrifft eine Wickelvorrichtung zur Herstellung einer elektrischen Spule durch Wickeln eines Spulendrahtes auf einen Spulenkörper sowie ein Verfahren zum Betrieb der Wickelvorrichtung. The invention relates to a winding device for producing an electrical coil by winding a coil wire on a bobbin and a method for operating the winding device.
Aus dem Stand der Technik sind Wickelvorrichtungen zur Herstellung elektrischer Spulen mit einem Spulendraht bekannt. Diese weisen eine oder mehrere Spulenkörperaufnahmen auf, auf welchen die zu bewickelnden Spulenkörper anzuordnen und drehbar zu lagern sind. Des Weiteren weisen diese Wickelvorrichtungen Drahtführerröhrchen auf, durch welche ein Spulendraht zum jeweiligen zu bewickelnden Spulenkörper führbar ist. Das Drahtführerröhrchen wird in einer Aufnahme gehalten und durch diese traversierend parallel zu einer Rotationsachse des Spulenkörpers geführt, wobei eine Verfahrgeschwindigkeit des Drahtführer- röhrchens abhängig von einer Rotationsgeschwindigkeit des Spulenkörpers und von einer Stärke des Spulendrahtes gesteuert wird. Winding devices for producing electrical coils with a coil wire are known from the prior art. These have one or more bobbin receptacles on which to arrange the coil body to be wound and to store rotatably. Furthermore, these winding devices have wire guide tubes, through which a coil wire to the respective coil body to be wound can be guided. The wire guide tube is held in a receptacle and traversed by it parallel to a rotation axis of the bobbin, wherein a travel speed of the Drahtführer- tube is controlled depending on a rotational speed of the bobbin and a thickness of the coil wire.
Der Erfindung liegt die Aufgabe zu Grunde, eine verbesserte Wickelvorrichtung und ein verbessertes Verfahren zu deren Betrieb anzugeben. The invention is based on the object to provide an improved winding device and an improved method for their operation.
Die Aufgabe wird erfindungsgemäß gelöst durch eine Wickelvorrichtung mit den Merkmalen des Anspruchs 1 und durch ein Verfahren mit den Merkmalen des Anspruchs 10. The object is achieved by a winding device with the features of claim 1 and by a method having the features of claim 10.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Advantageous embodiments of the invention are the subject of the dependent claims.
Eine erfindungsgemäße Wickelvorrichtung eignet sich zur Herstellung einer elektrischen Spule durch Wickeln eines Spulendrahtes auf einen Spulenkörper, wobei die Wickelvorrichtung umfasst: A winding device according to the invention is suitable for producing an electrical coil by winding a coil wire onto a bobbin, wherein the winding device comprises:
- mindestens eine drehbar gelagerte und mit einem Antrieb versehene Spulenkör- peraufnahme zur Aufnahme eines Spulenkörpers, - - At least one rotatably mounted and provided with a drive Spulenkör- per recording for receiving a bobbin, - -
- mindestens ein jeweils einer Spulenkörperaufnahme zugeordnetes Drahtführer- röhrchen, durch welches ein Spulendraht zum jeweiligen zu bewickelnden Spu- lenkörper führbar ist, wobei das Drahtführerröhrchen zumindest traversierend parallel zu einer Rotationsachse der Spulenkörperaufnahme führbar ist. at least one wire guide tube, each associated with a bobbin receptacle, through which a coil wire can be guided to the respective bobbin to be wound, wherein the wire guide tube can be guided at least traversingly parallel to a rotation axis of the bobbin receptacle.
Erfindungsgemäß ist mindestens eine Kraftmessvorrichtung zum Messen einer auf das Drahtführerröhrchen wirkenden Kraft in mindestens einer radial zu einer Längsachse des Drahtführerröhrchens liegenden Richtung vorgesehen. According to the invention, at least one force measuring device is provided for measuring a force acting on the wire guide tube in at least one direction lying radially to a longitudinal axis of the wire guide tube.
Wird das Drahtführerröhrchen traversierend parallel zur Rotationsachse der Spulenkörperaufnahme geführt, so tritt der Spulendraht nur in bestimmten Stadien des Wickelvorgangs entlang der Längsachse des Drahtführerröhrchens aus diesem aus, beispielsweise nur beim Wickeln einer bestimmten Lage der Spule. In dieser Situation kann eine auf den Spulendraht wirkende Zugkraft mittels eines Drahtzugreglers bestimmt werden, der an der Wickelvorrichtung vorgesehen sein kann und durch den der Spulendraht vor dem Erreichen des Drahtführerröhrchens verläuft. Mit Hilfe der Kraftmessvorrichtung kann die Radialkomponente der auf das Drahtführerröhrchen wirkenden Kraft beim Auszug des Spulendrahtes bestimmt werden, wenn der Spulendraht in einem von der Längsachse des Drahtführerröhrchens abweichenden Winkel aus diesem austritt. Die Zugkraft des Spulendrahtes an einem Einlauf des Drahtführerröhrchens wird in diesem Fall ebenfalls durch den Drahtzugregler bestimmt. Es ergibt sich jedoch außerdem eine Reibkraft des Spulendrahtes am Auslauf des Drahtführerröhrchens, die sich zu der durch den Drahtzugregler bestimmten Zugkraft addiert. Ist ein Austrittswinkel des Spulendrahtes aus dem Drahtführerröhrchen gegenüber dessen Längsachse bekannt, so kann mittels einer trigonometrischen Berechnung aus diesem Winkel und der gemessenen Radialkomponente der auf das Drahtführerröhrchen wirkenden Kraft eine auf den Spulendraht nach dem Auslauf des Drahtführerröhrchens wirkende Zugkraft bestimmt werden. If the wire guide tube traversing guided parallel to the axis of rotation of the bobbin recording, the coil wire occurs only in certain stages of the winding process along the longitudinal axis of the wire guide tube from this, for example, only when winding a certain position of the coil. In this situation, a pulling force acting on the reel wire may be determined by means of a wire tensioner which may be provided on the reeling device and through which the reel wire passes prior to reaching the wire guide tube. With the help of the force measuring device, the radial component of the force acting on the wire guide tube force during the extraction of the coil wire can be determined when the coil wire emerges from the longitudinal axis of the wire guide tube in an angle therefrom. The tensile force of the coil wire at an inlet of the wire guide tube is also determined by the wire tension regulator in this case. However, it also results in a frictional force of the coil wire at the outlet of the wire guide tube, which adds to the determined by the wire tension regulator traction. If an exit angle of the coil wire from the wire guide tube with respect to its longitudinal axis known, it can be determined by a trigonometric calculation of this angle and the measured radial component of the force acting on the wire guide tube force acting on the coil wire after the outlet of the wire guide tube tensile force.
Auf diese Weise kann eine verlässliche Aussage darüber getroffen werden, ob beim Wickeln der Spule die Zugkräfte auf den Spulendraht innerhalb einer be- stimmten Spezifikation gelegen haben oder ob der Spulendraht überdehnt wurde und die Spule damit einem erhöhten Ausfallrisiko unterliegt und gegebenenfalls als Ausschuss zu betrachten ist. Ebenso kann ein Reißen des Spulendrahtes anhand eines plötzlichen Abfalls der Zugkraft detektiert werden. Durch den abweichend von der Längsachse aus dem Drahtführerröhrchen auslaufenden Spulendraht unterliegt das Drahtführerröhrchen fortschreitendem Verschleiß und somit erhöhter Reibung, die zu einer Beschädigung einer Lackisolation des Spulendrahtes führen kann. Dies kann ebenfalls durch Ermittlung der Radialkraft mittels der Kraftmessvorrichtung festgestellt werden, so dass bei Überschreiten vorgegebener Werte eine Fehlermeldung erfolgen kann, die beispielsweise auf einen erforderlichen Austausch des Drahtführerröhrchens hinweist. In this way, a reliable statement can be made as to whether, during winding of the bobbin, the tensile forces on the bobbin wire within a or that the coil wire has been overstretched and the coil is therefore subject to an increased risk of failure and may be considered as rejects. Likewise, a rupture of the coil wire can be detected by means of a sudden drop in tensile force. By deviating from the longitudinal axis of the wire guide tube expiring coil wire, the wire guide tube is subject to progressive wear and thus increased friction, which can lead to damage of a paint insulation of the coil wire. This can also be determined by determining the radial force by means of the force measuring device, so that when predetermined values are exceeded, an error message can occur which indicates, for example, a required replacement of the wire guide tube.
Der Spulenkörper weist typischerweise einen Wickelbereich, umfassend mindestens eine zur Rotationsachse parallel liegende Fläche, und zwei den Wickelbereich an dessen Enden begrenzende Flansche auf. Mindestens einer der Flansche weist mindestens einen beispielsweise radial zur Rotationsachse angeordneten Schlitz auf, durch den der Spulendraht vor Beginn des Wickelvorgangs, beispielsweise von einem Spulenkörper-Pfosten aus, von außen in den Wickelbereich und nach dem Ende des Wickelvorgangs aus dem Wickelbereich heraus geführt werden kann, so dass der Spulendraht weitgehend axial in den Wickelbereich eintritt. Das Führen des Spulendrahtes in und aus dem Wickelbereich durch den oder die Schlitze kann ebenfalls durch entsprechendes Verfahren des Drahtführerröhrchens erfolgen. Dabei kann anhand des mittels der Kraftmessvorrichtung ermittelten Kraftverlaufs festgestellt werden, ob der Spulendraht korrekt durch den Schlitz geführt wurde. Beispielsweise kann bei einem nicht korrekten Führen der Spulendraht statt durch den Schlitz über den Rand des Flansches geführt werden, wobei sich eine deutlich höhere Zugkraft ergibt. Rutscht der Spulendraht anschließend in den Schlitz, ergibt sich entsprechend ein plötzlicher Abfall der Zugkraft. The bobbin typically has a winding area, comprising at least one surface lying parallel to the axis of rotation, and two flanges delimiting the winding area at its ends. At least one of the flanges has at least one, for example, radially arranged to the axis of rotation slot through which the coil wire before starting the winding process, for example, from a bobbin post, can be performed from the outside into the winding area and after the end of the winding process out of the winding area , so that the coil wire enters the winding area largely axially. The guiding of the coil wire into and out of the winding area through the slot (s) can also be done by appropriate method of the wire guide tube. It can be determined on the basis of the determined by the force measuring device force curve, whether the coil wire was passed correctly through the slot. For example, in the event of improper guiding, the coil wire can be guided over the edge of the flange instead of through the slot, resulting in a significantly higher pulling force. If the coil wire subsequently slides into the slot, a corresponding drop in tensile force results.
In einer Ausführungsform der Erfindung kann eine Aufnahmevorrichtung für das Drahtführerröhrchen vorgesehen sein. Das durch den schrägen Auslauf des Spulendrahtes Verschleiß ausgesetzte Drahtführerröhrchen ist somit austauschbar. - - In one embodiment of the invention, a receiving device for the wire guide tube may be provided. The exposed by the oblique discharge of the coil wire wear wire guide tube is thus interchangeable. - -
Die Kraftmessvorrichtung kann an der Aufnahmevorrichtung und/oder dem Drahtführerröhrchen selbst angeordnet sein und beispielsweise mindestens einen Dehnungsmessstreifen umfassen. Dehnungsmessstreifen sind besonders preisgünstige und weit verbreitete, zur Kraftmessung geeignete Sensoren. Mit Hilfe des Dehnungsmessstreifens wird eine Verformung des Materials der Aufnahme und/oder des Drahtführerröhrchens infolge der Radialkraft ermittelt. Der Dehnungsmessstreifen kann zur Messung in einer oder in zwei radial zu einer Längsachse des Drahtführerröhrchens liegenden Richtungen ausgebildet sein. Ebenso können zwei zueinander um 90° versetzt angeordnete Dehnungsmessstreifen zur Messung in zwei Richtungen vorgesehen sein. Ebenso können andere geeignete Sensoren, beispielsweise Piezo-Sensoren verwendet werden. The force measuring device may be arranged on the receiving device and / or the wire guide tube itself and comprise, for example, at least one strain gauge. Strain gauges are particularly inexpensive and widely used, suitable for force measurement sensors. With the aid of the strain gauge, a deformation of the material of the receptacle and / or the wire guide tube due to the radial force is determined. The strain gauge may be formed for measurement in one or in two directions radially of a longitudinal axis of the wire guide tube. Similarly, two mutually offset by 90 ° strain gauges may be provided for measuring in two directions. Likewise, other suitable sensors, such as piezoelectric sensors can be used.
In einer Ausführungsform der Erfindung ist eine Überwachungsvorrichtung mit der Kraftmessvorrichtung verbunden. Mittels der Überwachungsvorrichtung können von der Kraftmessvorrichtung ermittelte Messwerte aufgezeichnet werden. Diese Messwerte sind dann der individuellen Spule zuordenbar. Es kann über den gesamten Wickelvorgang eine kontinuierliche oder periodische Messung der auftretenden Kräfte vorgenommen und durch die Überwachungsvorrichtung aufgezeichnet werden. Die Überwachungsvorrichtung kann in einer Maschinensteuerung der Wickelvorrichtung integriert sein. In one embodiment of the invention, a monitoring device is connected to the force measuring device. By means of the monitoring device, measured values determined by the force measuring device can be recorded. These measured values can then be assigned to the individual coil. It can be made over the entire winding process, a continuous or periodic measurement of the forces occurring and recorded by the monitoring device. The monitoring device may be integrated in a machine control of the winding device.
In einer Ausführungsform der Erfindung ist mindestens ein Parkierstift vorgesehen, auf dem der Spulendraht vor und/oder nach einem Wickelvorgang fixierbar ist. Typischerweise wird nach dem Wickeln der Spule der Spulendraht an einem Spulenkörper-Pfosten terminiert, das heißt angewickelt, beispielsweise indem das Drahtführerröhrchen schraubenförmig um den Spulenkörper-Pfosten geführt wird, Vor der Entnahme der fertig gewickelten Spule aus der Wickelvorrichtung wird dann der Spulendraht vom Spulenkörper-Pfosten zum an der Wickelvorrichtung angeordneten Parkierstift geführt und dort fixiert. Anschließend wird der Spulendraht zwischen Spulenkörper-Pfosten und Parkierstift getrennt, beispielsweise durch Abreißen oder mittels eines Messers. Das Messer kann mit der Aufnahmevorrichtung des Drahtführerröhrchens fest verbunden oder auf andere Weise be- weglich geführt sein. Am Parkierstift kann eine weitere Kraftmessvorrichtung, beispielsweise ein Dehnungsmessstreifen, zum Messen einer auf den Parkierstift wirkenden Kraft angeordnet sein. Wird der Spulendraht zwischen Parkierstift und Spulenkörper-Pfosten getrennt, so kann durch die am Parkierstift angeordnete weitere Kraftmessvorrichtung die auf den Spulendraht wirkende Zugkraft ermittelt werden. Ist das Messer fest mit der Aufnahmevorrichtung des Drahtführer- röhrchens verbunden, kann auch die an der Aufnahmevorrichtung angeordnete Kraftmessvorrichtung diese Messung vornehmen. Vor dem Wickeln einer weiteren Spule wird der an seinem Ende am Parkierstift fixierte Spulendraht mittels des Drahtführerröhrchens zu einem weiteren Spulenkörper-Pfosten am Spulenkörper geführt, dort terminiert und anschließend der Spulendraht zwischen Parkierstift und Spulenkörper-Pfosten durch Schneiden oder Reißen getrennt. Durch die Überwachung dieser Vorgänge mittels mindestens einer der Kraftmessvorrichtun- gen wird nachvollziehbar, ob der Spulendraht tatsächlich geschnitten oder gerissen wurde, beispielsweise anhand eines plötzlichen Abfalls der gemessenen Kraft. Anderenfalls könnte das nicht abgeschnittene Ende des Spulendrahtes in die Wicklung eingewickelt werden und zu einem Kurzschluss führen. In one embodiment of the invention, at least one parking pin is provided, on which the coil wire can be fixed before and / or after a winding process. Typically, after winding the coil, the coil wire is terminated on a bobbin post, ie, wound, for example by guiding the wire guide tube helically around the bobbin post. Before the finished wound coil is removed from the winding device, the coil wire is then removed from the bobbin post. Post led to arranged on the winding device parking pen and fixed there. Subsequently, the coil wire between the bobbin post and parking pin is separated, for example by tearing or by means of a knife. The knife can be firmly connected to the receiving device of the wire guide tube or otherwise be guided. On the parking pin, another force measuring device, for example a strain gauge, can be arranged to measure a force acting on the parking pin. If the coil wire is separated between the parking pin and the bobbin post, the tensile force acting on the coil wire can be determined by the additional force measuring device arranged on the parking pin. If the knife is firmly connected to the receiving device of the wire guide tube, the force measuring device arranged on the receiving device can also carry out this measurement. Before winding another coil, the coil wire fixed at its end to the parking pin is guided by means of the wire guide tube to another bobbin post on the bobbin, terminated there and then separated the coil wire between the parking pen and bobbin posts by cutting or tearing. The monitoring of these processes by means of at least one of the force measuring devices makes it comprehensible whether the coil wire was actually cut or torn, for example by means of a sudden drop in the measured force. Otherwise, the uncut end of the coil wire could be wrapped in the coil and cause a short circuit.
In einer Ausführungsform der Erfindung weist die Überwachungsvorrichtung Berechnungsmittel zur trigonometrischen Berechnung einer auf den Spulendraht wirkenden Kraft in dessen Längsrichtung anhand der mittels der Kraftmessvorrichtung ermittelten Kraft und einem Austrittswinkel des Spulendrahtes aus dem Drahtführerröhrchen gegenüber dessen Längsachse auf. Hierfür kann eine optische Messvorrichtung, beispielsweise eine Kamera, zum Ermitteln des Austrittswinkels vorgesehen und mit der Überwachungsvorrichtung verbunden sein. In one embodiment of the invention, the monitoring device has calculation means for the trigonometric calculation of a force acting on the coil wire in the longitudinal direction of the force determined by means of the force measuring device and an exit angle of the coil wire from the wire guide tube with respect to its longitudinal axis. For this purpose, an optical measuring device, for example a camera, may be provided for determining the exit angle and connected to the monitoring device.
Ebenso kann die Überwachungsvorrichtung Mittel zur Überwachung eines Fortschritts des Wickelvorgangs, beispielsweise integriert in der Maschinensteuerung, umfassen, mittels deren zumindest eine aktuelle Position des Drahtführerröhrchens relativ zum Spulenkörper ermittelbar und dementsprechend der Austrittswinkel bestimmbar ist. Für kleine Spulen mit wenigen Wicklungen und verhältnismäßig großem Abstand des Auslaufs des Drahtführerröhrchens zum Spulen- - - Likewise, the monitoring device may comprise means for monitoring a progress of the winding process, for example integrated in the machine control, by means of which at least one current position of the wire guide tube can be determined relative to the bobbin and, accordingly, the exit angle can be determined. For small coils with few windings and relatively large distance of the outlet of the wire guide tube to the coil - -
körper kann so näherungsweise ein Austrittswinkel bestimmt und der trigonometrischen Berechnung zugrunde gelegt werden, die zu einer ausreichend genauen Ermittlung der Zugkraft dient. Body can thus approximately determine an exit angle and the trigonometric calculation are used, which is used for a sufficiently accurate determination of the tensile force.
Insbesondere bei größeren Spulen mit vielen Wicklungen und/oder bei verhältnismäßig geringem Abstand des Auslaufs des Drahtführerröhrchens zum Spulenkörper kann es vorteilhaft sein, wenn die Mittel zur Überwachung des Fortschritts des Wickelvorgangs zur Ermittlung eines Radialabstands einer aktuell gewickelten Lage zur Rotationsachse der Spulenkörperaufnahme und zur Berücksichtigung des Radialabstands bei der Bestimmung des Austrittswinkels ausgebildet sind. Der Austrittswinkel und somit die Zugkraft können so mit einer hohen und über die gesamte Wicklung gleichbleibenden Genauigkeit bestimmt werden. Especially with larger coils with many windings and / or at a relatively small distance of the outlet of the wire guide tube to the bobbin, it may be advantageous if the means for monitoring the progress of the winding process for determining a radial distance of a currently wound layer to the axis of rotation of the bobbin receiving and to take into account Radial distance are formed in the determination of the exit angle. The exit angle and thus the tensile force can be determined with a high and over the entire winding constant accuracy.
In einer Ausführungsform der Erfindung kann eine Vielzahl von Spulenkör- peraufnahmen zur Aufnahme jeweiliger Spulenkörper sowie eine Vielzahl von Drahtführerröhrchen vorgesehen sein, von denen jeweils eines jeder Spulenkör- peraufnahmen zugeordnet ist, wobei die Wickelvorrichtung zum synchronen Bewickeln der Spulenkörper ausgebildet ist, wobei die Überwachungsvorrichtung zur Überwachung der Kräfte an jedem der Drahtführerröhrchen und deren Vergleich miteinander ausgebildet ist. In one embodiment of the invention, a plurality of bobbin receptacles for receiving respective bobbin and a plurality of wire guide tubes may be provided, each of which is associated with each bobbin receptacles, wherein the winding device is designed for synchronous winding of the bobbin, wherein the monitoring device for Monitoring the forces on each of the wire guide tubes and comparing them with one another.
In einem Verfahren zum Betrieb der Wickelvorrichtung kann durch Vergleich der an jedem der Drahtführerröhrchen auftretenden Kräfte beim synchronen Bewickeln der Spulenkörper festgestellt werden, ob an einer oder mehreren der Spulen Abweichungen von den übrigen Spulen auftreten, die auf eine Überdehnung oder ein Reißen des Spulendrahtes hinweisen und gegebenenfalls einen Bedienereingriff erfordern. In a method of operation of the winding device can be determined by comparing the forces occurring at each of the wire guide tubes in the synchronous winding of the bobbin whether deviations from the other coils occur on one or more of the coils, which indicate overstretching or tearing of the coil wire and possibly require operator intervention.
In einem weiteren Verfahren kann in einer Mastermessung oder in einer Versuchsreihe über eine große Anzahl Wickelvorgänge von gleichartigen Spulen ein typischer Kraftverlauf über den Wickelvorgang ermittelt werden. Insbesondere bei Spulenkörpern mit rechteckigem oder quadratischem Querschnitt treten dabei - - In a further method, a typical force profile over the winding process can be determined in a master measurement or in a test series over a large number of winding processes of similar coils. Especially in bobbins with rectangular or square cross section occur - -
jeweils erhöhte Kräfte auf, wenn der Spulendraht über eine der Ecken des Spulenkörpers läuft. Um die Zugkraft möglichst gleichmäßig über den gesamten Wickelvorgang zu gestalten, kann anhand der in der Mastermessung oder der Versuchsreihe ermittelten Kraftverläufe eine Rückhaltekraft des Drahtzugreglers proaktiv so gesteuert werden, dass die durch den eckigen Querschnitt des Spulenkörpers bedingten Änderungen der auf den Spulendraht wirkenden Zugkraft durch entsprechende Verringerung der Rückhaltekraft des Drahtzugreglers zumindest weitgehend kompensiert werden. Auf diese Weise werden Spitzenwerte der Zugkraft abgebaut. Mittels einer Regelung der Rückhaltekraft des Drahtzugreglers in Echtzeit wird dies nur in deutlich geringerem Ausmaß erreicht. Ebenso kann ein Toleranzfeld über den in der Mastermessung oder der Versuchsreihe ermittelten Kräfteverlauf gelegt werden, so dass sich ein Fenster ergibt, innerhalb dessen die während eines realen Wickelvorgangs ermittelten Zugkräfte liegen sollten. Liegen die Zugkräfte außerhalb dieses Fensters, kann eine Fehlermeldung generiert werden. each increased forces when the coil wire runs over one of the corners of the bobbin. In order to design the traction force as uniformly as possible over the entire winding process, a retention force of the wire tensioner can be proactively controlled based on the determined in the master measurement or the test series force curves that caused by the polygonal cross section of the bobbin changes the force acting on the coil wire tensile force by appropriate Reduction of the retention force of Drahtzugreglers be at least largely compensated. In this way, peak values of the tensile force are reduced. By controlling the retention force of the wire tension controller in real time, this is achieved only to a much lesser extent. Likewise, a tolerance field can be set over the force profile determined in the master measurement or the test series, so that a window results within which the tensile forces determined during a real winding process should lie. If the pulling forces are outside this window, an error message can be generated.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand von Zeichnungen näher erläutert. Embodiments of the invention are explained in more detail below with reference to drawings.
Darin zeigen: Show:
Figur 1 eine schematische Seitenansicht eines Drahtführerröhrchens, FIG. 1 shows a schematic side view of a wire guide tube,
Figur 2 einen schematischen Längsschnitt des Drahtführerröhrchens, FIG. 2 shows a schematic longitudinal section of the wire guide tube,
Figur 3 eine schematische Perspektivansicht einer Aufnahmevorrichtung mit einem Drahtführerröhrchen und einem Spulendraht, eine schematische Darstellung einer Wickelvorrichtung mit einer Aufnahmevorrichtung und einem Drahtführerröhrchen, - - 3 is a schematic perspective view of a receiving device with a wire guide tube and a coil wire, a schematic representation of a winding device with a receiving device and a wire guide tube, - -
Figur 5 eine schematische Darstellung einer weiteren Ausführungsform einer Aufnahmevorrichtung mit einem Drahtführerröhrchen, und Figure 5 is a schematic representation of another embodiment of a receiving device with a wire guide tube, and
Figur 6 einen schematischen Längsschnitt durch eine Ausführungsform des Drahtführerröhrchens. 6 shows a schematic longitudinal section through an embodiment of the wire guide tube.
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen. Corresponding parts are provided in all figures with the same reference numerals.
Figur 1 zeigt eine schematische Seitenansicht eines Drahtführerröhrchens 1. Figur 2 zeigt einen schematischen Längsschnitt des Drahtführerröhrchens 1. Das Drahtführerröhrchen 1 umfasst einen im Wesentlichen zylindrischen Abschnitt 1.1 und einen Sockel 1.2 zur Aufnahme in einer Aufnahmevorrichtung einer Wickelvorrichtung zur Herstellung einer elektrischen Spule durch Wickeln eines Spulendrahtes auf einen Spulenkörper. Entlang einer Längsachse L des Drahtführerröhrchens 1 ist zwischen einem Einlauf 1.3 am Sockel 1.2 und einem Auslauf 1.4 am zylindrischen Abschnitt 1.1 eine Bohrung 1.5 zum Führen eines Spulendrahtes eingebracht. In einer Ausführungsform der Erfindung können am Drahtführerröhrchen mindestens ein oder zwei Kraftmessvorrichtungen 8 vorgesehen sein, beispielsweise in einer zwischen dem zylindrischen Abschnitt 1.1 und dem Sockel 1.2 liegenden Hohlkehle 1.6, die zumindest abschnittsweise einen geringeren Außendurchmesser aufweist als der zylindrische Abschnitt 1.1 und so leichter verformbar ist. Die mindestens eine Kraftmessvorrichtung 8 ist zum Messen einer auf das Drahtführerröhrchen 1 wirkenden Kraft in mindestens einer radial zur Längsachse L des Drahtführerröhrchens 1 liegenden Richtung x, y vorgesehen. Die beiden dargestellten Kraftmessvorrichtungen 8 sind auf dem Umfang der Hohlkehle 1.6 um etwa 90° versetzt angeordnet, so dass eine der Kraftmessvorrichtungen 8 die auf das Drahtführerröhrchen 1 wirkende Kraft in der Richtung x und die andere der Kraftmessvorrichtungen 8 die auf das Drahtführerröhrchen 1 wirkende Kraft in der Richtung y messen kann. - - 1 shows a schematic side view of a wire guide tube 1. FIG. 2 shows a schematic longitudinal section of the wire guide tube 1. The wire guide tube 1 comprises a substantially cylindrical section 1.1 and a base 1.2 for receiving in a receiving device of a winding device for producing an electrical coil by winding a coil wire on a bobbin. Along a longitudinal axis L of the wire guide tube 1, a bore 1.5 for guiding a coil wire is introduced between an inlet 1.3 on the base 1.2 and an outlet 1.4 on the cylindrical section 1.1. In one embodiment of the invention, at least one or two force measuring devices 8 may be provided on the wire guide tube, for example in a groove lying between the cylindrical portion 1.1 and the base 1.2 1.6, which at least partially has a smaller outer diameter than the cylindrical portion 1.1 and is easier to deform , The at least one force-measuring device 8 is provided for measuring a force acting on the wire guide tube 1 in at least one direction x, y lying radially to the longitudinal axis L of the wire guide tube 1. The two illustrated force measuring devices 8 are arranged on the circumference of the groove 1.6 offset by about 90 °, so that one of the force measuring devices 8 acting on the wire guide tube 1 force in the direction x and the other of the force measuring devices 8, the force acting on the wire guide tube 1 in force can measure the direction y. - -
Figur 3 zeigt eine schematische Perspektivansicht einer Aufnahmevorrichtung 2 einer Wickelvorrichtung zur Herstellung einer elektrischen Spule durch Wickeln eines Spulendrahtes 3 auf einen Spulenkörper. In der Aufnahmevorrichtung 2 ist ein Drahtführerröhrchen 1 austauschbar angeordnet. Ein Spulendraht 3 ist durch das Drahtführerröhrchen 1 geführt. FIG. 3 shows a schematic perspective view of a receiving device 2 of a winding device for producing an electrical coil by winding a coil wire 3 onto a coil former. In the receiving device 2, a wire guide tube 1 is arranged interchangeably. A coil wire 3 is passed through the wire guide tube 1.
Figur 4 ist eine schematische Darstellung einer Wickelvorrichtung 4 mit einer Aufnahmevorrichtung 2 und einem Drahtführerröhrchen 1. FIG. 4 is a schematic representation of a winding device 4 with a receiving device 2 and a wire guide tube 1.
Die Wickelvorrichtung 4 umfasst ferner eine drehbar gelagerte und mit einem Antrieb 5 versehene Spulenkörperaufnahme 6 zur Aufnahme eines Spulenkörpers 7. Durch das Drahtführerröhrchen 1 wird ein Spulendraht 3 zum zu bewickelnden Spulenkörper 7 geführt, wobei das Drahtführerröhrchen 1 durch die Aufnahmevorrichtung 2 zumindest traversierend parallel zu einer Rotationsachse R der Spulenkörperaufnahme 6 führbar ist. In einer beispielhaften Ausführungsform ist das Drahtführerröhrchen 1 in weiteren Freiheitsgraden führbar. The winding device 4 further comprises a rotatably mounted and provided with a drive 5 bobbin receptacle 6 for receiving a bobbin 7. Through the wire guide tube 1, a coil wire 3 is guided to be wound bobbin 7, wherein the wire guide tube 1 by the receiving device 2 at least traversing parallel to a Rotation axis R of the bobbin receptacle 6 is feasible. In an exemplary embodiment, the wire guide tube 1 is feasible in further degrees of freedom.
Weiter ist mindestens eine Kraftmessvorrichtung 8 zum Messen einer auf das Drahtführerröhrchen 1 wirkenden Kraft in mindestens einer radial zur Längsachse L des Drahtführerröhrchens 1 liegenden Richtung x, y vorgesehen. Furthermore, at least one force measuring device 8 is provided for measuring a force acting on the wire guide tube 1 in at least one direction x, y lying radially to the longitudinal axis L of the wire guide tube 1.
Wird das Drahtführerröhrchen 1 traversierend parallel zur Rotationsachse R der Spulenkörperaufnahme 6 geführt, so tritt der Spulendraht 3 nur in bestimmten Stadien des Wickelvorgangs entlang der Längsachse L des Drahtführerröhrchens 1 aus diesem aus, beispielsweise nur beim Wickeln einer bestimmten Lage der Spule 7. In dieser Situation kann eine auf den Spulendraht 3 wirkende Zugkraft mittels eines Drahtzugreglers 9 bestimmt werden, der an der Wickelvorrichtung 4 vorgesehen sein kann und durch den der Spulendraht 3 vor dem Erreichen des Drahtführerröhrchens 1 verläuft. Mit Hilfe der Kraftmessvorrichtung 8 kann eine in mindestens einer Radialrichtung x, y auf das Drahtführerröhrchen 1 wirkende Kraft bestimmt werden, wenn der Spulendraht 3 in einem von der Längsachse L des Drahtführerröhrchens 1 abweichenden Austrittswinkel α aus diesem - - If the wire guide tube 1 traversing guided parallel to the axis of rotation R of the bobbin receptacle 6, the coil wire 3 occurs only at certain stages of the winding process along the longitudinal axis L of the wire guide tube 1 from this, for example, only when winding a particular position of the coil 7. In this situation a tensile force acting on the coil wire 3 can be determined by means of a wire tension regulator 9, which can be provided on the winding device 4 and through which the coil wire 3 extends before reaching the wire guide tube 1. With the aid of the force-measuring device 8, a force acting on the wire guide tube 1 in at least one radial direction x, y can be determined if the coil wire 3 emerges from the exit angle α deviating from the longitudinal axis L of the wire guide tube 1 - -
austritt. Die Zugkraft des Spulendrahtes 3 am Einlauf 1.3 des Drahtführerröhr- chens 1 wird in diesem Fall ebenfalls durch den Drahtzugregler 9 bestimmt. Es ergibt sich jedoch außerdem eine Reibkraft des Spulendrahtes 3 am Auslauf 1.4 des Drahtführerröhrchens 1 , die sich zu der durch den Drahtzugregler 9 bestimmten Zugkraft addiert. Ist der Austrittswinkel α des Spulendrahtes 3 aus dem Draht- führerröhrchen 1 gegenüber dessen Längsachse L bekannt, so kann mittels einer trigonometrischen Berechnung aus diesem Austrittswinkel α und der gemessenen Radialkomponente der auf das Drahtführerröhrchen 1 wirkenden Kraft eine auf den Spulendraht 3 nach dem Auslauf 1.4 des Drahtführerröhrchens 1 wirkende Zugkraft bestimmt werden. exit. The tensile force of the coil wire 3 at the inlet 1.3 of the Drahtführerröhr- chens 1 is also determined by the wire tension regulator 9 in this case. However, it also results in a frictional force of the coil wire 3 at the outlet 1.4 of the wire guide tube 1, which adds to the determined by the wire tension regulator 9 traction. If the exit angle α of the coil wire 3 from the wire guide tube 1 with respect to its longitudinal axis L is known, then the force acting on the wire guide tube 1 can be determined from this exit angle α and the measured radial component by means of a trigonometric calculation on the coil wire 3 after the outlet 1.4 Wire guide tube 1 acting tensile force can be determined.
Die Kraftmessvorrichtung 8 kann wie dargestellt an der Aufnahmevorrichtung 2 und/oder dem Drahtführerröhrchen 1 selbst angeordnet sein und beispielsweise mindestens einen Dehnungsmessstreifen umfassen. Der Dehnungsmessstreifen kann zur Messung in einer oder in zwei Richtungen ausgebildet oder es können mehrere versetzt angeordnete Dehnungsmessstreifen vorgesehen sein. As shown, the force measuring device 8 can be arranged on the receiving device 2 and / or the wire guide tube 1 itself and, for example, comprise at least one strain gauge. The strain gauge may be configured to measure in one or two directions, or a plurality of staggered strain gauges may be provided.
Weiter ist eine Überwachungsvorrichtung 10 mit der Kraftmessvorrichtung 8 verbunden. Mittels der Überwachungsvorrichtung 10 können von der Kraftmessvorrichtung 8 ermittelte Messwerte aufgezeichnet werden. Diese Messwerte sind dann der jeweiligen Spule 7 zuordenbar. Es kann über den gesamten Wickelvorgang eine kontinuierliche oder periodische Messung der auftretenden Kräfte vorgenommen und durch die Überwachungsvorrichtung 10 aufgezeichnet werden. In der gezeigten Ausführungsform ist die Überwachungsvorrichtung 10 in einer Maschinensteuerung 12 der Wickelvorrichtung 4 integriert, die beispielsweise auch die Rotation des Antriebs 5 für die Spulenkörperaumahme 6, die Bewegungen der Aufnahmevorrichtung 2 für das Drahtführerröhrchen 1 und die Zugkraft des Drahtzugreglers 9 steuert. Further, a monitoring device 10 is connected to the force measuring device 8. By means of the monitoring device 10, measured values determined by the force-measuring device 8 can be recorded. These measured values can then be assigned to the respective coil 7. It can be made over the entire winding process, a continuous or periodic measurement of the forces occurring and recorded by the monitoring device 10. In the embodiment shown, the monitoring device 10 is integrated in a machine control 12 of the winding device 4, which also controls the rotation of the drive 5 for the bobbin case 6, the movements of the receiving device 2 for the wire guide tube 1 and the pulling force of the wire tensioner 9, for example.
In einer Ausführungsform kann ein Parkierstift 13 vorgesehen sein, auf dem der Spulendraht 3 vor und/oder nach einem Wickelvorgang fixierbar ist. Am Parkierstift 13 kann eine weitere Kraftmessvorrichtung 14, beispielsweise ein Deh- - - In one embodiment, a parking pin 13 may be provided, on which the coil wire 3 can be fixed before and / or after a winding process. At the parking pin 13, a further force measuring device 14, for example, a Deh- - -
nungsmessstreifen, zum Messen einer auf den Parkierstift 13 wirkenden Kraft angeordnet sein. Wird der Spulendraht 3 zwischen Parkierstift 13 und Spulenkörper 7 getrennt, so kann durch die am Parkierstift 13 angeordnete weitere Kraftmessvorrichtung 14 die auf den Spulendraht 3 wirkende Zugkraft ermittelt werden, beispielsweise mittels eines Messers oder, bei entsprechend dünnem Spulendraht 3 auch durch Reißen mittels des Drahtführerröhrchens 1. Ist das Messer fest mit der Aufnahmevorrichtung 2 des Drahtführerröhrchens 1 verbunden, kann gegebenenfalls auch die an der Aufnahmevorrichtung 2 angeordnete Kraftmessvorrichtung 8 diese Messung vornehmen. voltage measuring strip, be arranged for measuring a force acting on the parking pin 13 force. If the coil wire 3 is separated between the parking pin 13 and bobbin 7, the tensile force acting on the coil wire 3 can be determined by the force measuring device 14 arranged on the parking pin 13, for example by means of a knife or, if the coil wire 3 is correspondingly thin, by tearing by means of the wire guide tube 1. If the knife is firmly connected to the receiving device 2 of the wire guide tube 1, optionally also arranged on the receiving device 2 force measuring device 8 make this measurement.
In einer Ausführungsform weist die Überwachungsvorrichtung 10 Berechnungsmittel zur trigonometrischen Berechnung einer auf den Spulendraht 3 wirkenden Kraft in dessen Längsrichtung anhand der mittels der Kraftmessvorrichtung 8 ermittelten Kraft und dem Austrittswinkel α des Spulendrahtes 3 aus dem Drahtfüh- rerröhrchen 1 gegenüber dessen Längsachse L auf. Hierfür kann eine optische Messvorrichtung 11 , beispielsweise eine Kamera, zum Ermitteln des Austrittswinkels α vorgesehen und mit der Überwachungsvorrichtung 10 verbunden sein. In one embodiment, the monitoring device 10 has calculation means for trigonometrically calculating a force acting on the coil wire 3 in the longitudinal direction of the force determined by the force measuring device 8 and the exit angle α of the coil wire 3 from the wire guide tube 1 with respect to its longitudinal axis L. For this purpose, an optical measuring device 11, for example a camera, can be provided for determining the exit angle α and connected to the monitoring device 10.
Ebenso kann die Überwachungsvorrichtung 10 Mittel zur Überwachung eines Fortschritts des Wickelvorgangs, beispielsweise integriert in der Maschinensteuerung, umfassen, mittels deren zumindest eine aktuelle Position des Drahtführerröhrchens 1 relativ zum Spulenkörper 7 ermittelbar und dementsprechend der Austrittswinkel α bestimmbar ist. Für kleine Spulen 7 mit wenigen Wicklungen und verhältnismäßig großem Abstand des Auslaufs 1.4 des Drahtführerröhrchens 1 zum Spulenkörper 7 kann so näherungsweise der Austrittswinkel α bestimmt und der trigonometrischen Berechnung zugrunde gelegt werden, die zu einer ausreichend genauen Ermittlung der Zugkraft dient. Likewise, the monitoring device 10 may comprise means for monitoring a progress of the winding process, for example integrated in the machine control, by means of which at least one current position of the wire guide tube 1 relative to the bobbin 7 can be determined and accordingly the exit angle α can be determined. For small coils 7 with few windings and relatively large distance of the outlet 1.4 of the wire guide tube 1 to the bobbin 7 so approximately the exit angle α determined and the trigonometric calculation are used, which is used for a sufficiently accurate determination of the tensile force.
Insbesondere bei größeren Spulenkörpern 7 mit vielen Wicklungen und/oder bei verhältnismäßig geringem Abstand des Auslaufs 1.4 des Drahtführerröhrchens 1 zum Spulenkörper 7 kann es vorteilhaft sein, wenn die Mittel zur Überwachung des Fortschritts des Wickelvorgangs zur Ermittlung eines Radialabstands einer - - Especially with larger bobbins 7 with many windings and / or at a relatively small distance of the outlet 1.4 of the wire guide tube 1 to the bobbin 7, it may be advantageous if the means for monitoring the progress of the winding process for determining a radial distance of a - -
aktuell gewickelten Wicklungslage zur Rotationsachse R der Spulenkörperauf- nahme 6 und zur Berücksichtigung des Radialabstands bei der Bestimmung des Austrittswinkels α ausgebildet sind. currently wound winding layer to the rotation axis R of the bobbin Aufaufme 6 and to account for the radial distance in the determination of the exit angle α are formed.
In einer Ausführungsform kann eine Vielzahl von Spulenkörperaufnahmen 6 zur Aufnahme jeweiliger Spulenkörper 7 sowie eine Vielzahl von Drahtführerröhr- chen 1 vorgesehen sein, von denen jeweils eines jeder Spulenkörperaufnahmen 6 zugeordnet ist, wobei die Wickelvorrichtung 4 zum synchronen Bewickeln der Spulenkörper 7 ausgebildet ist, wobei die Überwachungsvorrichtung 10 zur Überwachung der Kräfte an jedem der Drahtführerröhrchen 1 und deren Vergleich miteinander ausgebildet ist. In one embodiment, a plurality of bobbin receptacles 6 for receiving respective bobbin 7 and a plurality of Drahtführerröhr- chen 1 may be provided, each of which is associated with each bobbin receptacles 6, wherein the winding device 4 is formed for synchronous winding of the bobbin 7, wherein the Monitoring device 10 for monitoring the forces on each of the wire guide tubes 1 and their comparison is formed with each other.
In einem Verfahren zum Betrieb der Wickelvorrichtung 4 kann durch Vergleich der an jedem der Drahtführerröhrchen 1 auftretenden Kräfte beim synchronen Bewickeln der Spulenkörper 7 festgestellt werden, ob an einer oder mehreren der Spulenkörper 7 Abweichungen von den übrigen Spulenkörpern 7 auftreten, die auf eine Überdehnung oder ein Reißen des Spulendrahtes 3 hinweisen und gegebenenfalls einen Bedienereingriff erfordern. In a method for operating the winding device 4 can be determined by comparing the forces occurring at each of the wire guide tubes 1 in the synchronous winding of the bobbin 7, 7 deviations from the other bobbins 7 occur on one or more of the bobbin 7, the overstretch or a Tear the coil wire 3 point and possibly require operator intervention.
In einem weiteren Verfahren kann in einer Mastermessung oder in einer Versuchsreihe über eine große Anzahl Wickelvorgänge von gleichartigen Spulen ein typischer Kraftverlauf über den Wickelvorgang ermittelt werden. Um die Zugkraft möglichst gleichmäßig über den gesamten Wickelvorgang zu gestalten kann anhand der in der Mastermessung oder der Versuchsreihe ermittelten Kraftverläufe eine Rückhaltekraft des Drahtzugreglers 9 proaktiv gesteuert werden, so dass Änderungen der auf den Spulendraht 3 wirkenden Zugkraft durch entsprechende Verringerung der Rückhaltekraft des Drahtzugreglers 9 zumindest weitgehend kompensiert werden. Ebenso kann ein Toleranzfeld über den in der Mastermessung oder der Versuchsreihe ermittelten Kräfteverlauf gelegt werden, so dass sich ein Fenster ergibt, innerhalb dessen die während eines realen Wickelvorgangs ermittelten Zugkräfte liegen sollten. Liegen die Zugkräfte außerhalb dieses Fensters, kann eine Fehlermeldung generiert werden. - - In a further method, a typical force profile over the winding process can be determined in a master measurement or in a test series over a large number of winding processes of similar coils. In order to design the traction force as evenly as possible over the entire winding process, a restraining force of the wire tension regulator 9 can be proactively controlled on the basis of the force curves determined in the master measurement or the test series, so that changes in the tensile force acting on the coil wire 3 are at least minimized by corresponding reduction of the retention force of the wire tension regulator 9 be largely compensated. Likewise, a tolerance field can be set over the force profile determined in the master measurement or the test series, so that a window results within which the tensile forces determined during a real winding process should lie. If the pulling forces are outside this window, an error message can be generated. - -
In einem weiteren Verfahren können die erfassten Kräfte dazu genutzt werden, um im Verlauf eines Wickelprogramms auftretende Spannungsspitzen zu erkennen. Wenn solche Spannungsspitzen auftreten, kann das Programm mit geeigneten Maßnahmen, beispielsweise Ändern der Verfahrwege oder Reduktion der Drahtzugspannung, Reduktion der Beschleunigung oder Verzögerung und der Verfahrgeschwmdigkeit so angepasst werden, dass diese Spannungsspitzen nicht mehr auftreten. Eine vorhandene Kennlinie oder eine darüber gelegte Hüllkurve kann dann als Master zur Überwachung des laufenden Produktionsbetriebs dienen, wobei auftretende Über- oder Unterschreitungen der Zugkraft erkannt und die entsprechenden Spulen als Schlechtspulen entfernt werden können. Ebenso kann anhand der erfassten Zugkräfte der Drahtzug geregelt werden. In a further method, the detected forces can be used to detect voltage spikes occurring in the course of a winding program. If such voltage spikes occur, the program can be adjusted by appropriate measures, such as changing the travel or reduction of the wire tension, reducing the acceleration or deceleration and the Vergeschgeschwmdigkeit so that these spikes no longer occur. An existing characteristic or an overlying envelope can then serve as a master for monitoring the current production operation, wherein occurring overruns or underruns of the tensile force detected and the corresponding coils can be removed as bad coils. Likewise, the wire tension can be regulated on the basis of the detected tensile forces.
Figur 5 zeigt eine schematische Darstellung einer weiteren Ausführungsform eines Teils einer Aufnahmevorrichtung 2 mit einem Drahtführerröhrchen 1. Die Aufnahmevorrichtung 2 weist einen ersten Bereich 2.1 auf, in dem eine Bohrung verläuft, in der das Drahtführerröhrchen 1 aufgenommen ist. Mit einem zweiten Bereich 2.2 ist die Aufnahmevorrichtung 2 mit einem Teil der Wickelvorrich- tung_4 so verbindbar, dass die Aufnahmevorrichtung 4 zumindest traversierend parallel zu einer Rotationsachse R der Spulenkörperaufnahme 6 führbar ist (nicht dargestellt). Zwischen den Bereichen 2.1 und 2.2 weist die Aufnahmevorrich- tung_2 einen Zwischenbereich 2.3 mit reduzierter Dicke, beispielsweise in Gestalt einer Hohlkehle, auf, in dem eine Kraftmessvorrichtung 8, beispielsweise ein weiterer Dehnungsmessstreifen vorgesehen ist, der auf das Drahtführerröhrchen 1 in Richtung der Längsachse L wirkende Kräfte erfassen kann. Durch Kombination mit den oben dargestellten Kraftmessvorrichtungen 8 zur Messung der auf das Drahtführerröhrchen 1 wirkenden Kraft in zwei radial zur Längsachse L des Drahtführerröhrchens 1 liegenden Richtungen x, y kann so eine Erfassung in drei Raumrichtungen erfolgen, so dass auf die Ermittlung des Austrittswinkels α und die trigonometrische Berechnung der Kraft gegebenenfalls verzichtet werden kann. - - Figure 5 shows a schematic representation of another embodiment of a portion of a receiving device 2 with a wire guide tube 1. The receiving device 2 has a first region 2.1, in which a bore extends, in which the wire guide tube 1 is received. With a second region 2.2, the receiving device 2 is connected to a part of the winding device 4 such that the receiving device 4 can be guided at least traversingly parallel to an axis of rotation R of the bobbin receptacle 6 (not shown). Between the areas 2.1 and 2.2, the receiving device 2 has an intermediate region 2.3 of reduced thickness, for example in the form of a groove, in which a force measuring device 8, for example a further strain gauge, is provided which acts on the wire guide tube 1 in the direction of the longitudinal axis L. Can capture forces. By combining with the above-described force measuring devices 8 for measuring the force acting on the wire guide tube 1 in two radially to the longitudinal axis L of the wire guide tube 1 lying directions x, y can be done in three spatial directions, so that the determination of the exit angle α and the If necessary, trigonometric calculation of the force can be dispensed with. - -
Figur 6 zeigt einen schematischen Längsschnitt durch eine Ausfuhrungsform des Drahtführerröhrchens 1, das in einer wieder verwendbaren Hülse 15 aufgenommen ist, die als Sockel dient und wiederum in der Bohrung der Aufnahmevorrich- tung 2 aufgenommen werden kann (nicht dargestellt). Die in Figur 1 gezeigte Hohlkehle 1.6 ist in diesem Fall durch eine an der Hülse 15 vorgesehene Hohlkehle 15.1 ersetzt, in der die mindestens eine Kraftmessvorrichtung 8, insbesondere ein oder zwei Dehnungsmessstreifen, angeordnet sein kann. Auf diese Weise ist das Drahtführerröhrchen 1 leichter auswechselbar, beispielsweise wenn es verschlissen ist. Figure 6 shows a schematic longitudinal section through an embodiment of the wire guide tube 1, which is accommodated in a reusable sleeve 15 which serves as a base and in turn can be received in the bore of the Aufnahmevorrich- device 2 (not shown). The hollow groove 1.6 shown in FIG. 1 is replaced in this case by a groove 15.1 provided on the sleeve 15, in which the at least one force-measuring device 8, in particular one or two strain gauges, can be arranged. In this way, the wire guide tube 1 is easier to replace, for example, when it is worn.
- - - -
BEZUGSZEICHENLISTE LIST OF REFERENCE NUMBERS
1 Drahtführerröhrchen 1 wire guide tube
1.1 zylindrischer Abschnitt  1.1 cylindrical section
1.2 Sockel  1.2 socket
1.3 Einlauf  1.3 enema
1.4 Auslauf  1.4 outlet
1.5 Bohrung  1.5 hole
1.6 Hohlkehle  1.6 Coving
Aufnahmevorrichtung  cradle
2.1 erster Bereich  2.1 first area
2.2 zweiter Bereich  2.2 second area
2.3 Zwischenbereich  2.3 intermediate area
3 Spulendraht  3 coil wire
4 Wickelvorrichtung  4 winding device
5 Antrieb  5 drive
6 Spulenkörperaufnahme  6 bobbin holder
7 Spulenkörper  7 bobbins
8 Kraftmessvorrichtung  8 force measuring device
9 Drahtzugregler  9 wire tension regulator
10 Überwachungsvorrichtung  10 monitoring device
11 optische Messvorrichtung  11 optical measuring device
12 Maschinensteuerung  12 machine control
13 Parkierstift  13 parking pen
14 weitere Kraftmessvorrichtung  14 more force measuring device
15 Hülse  15 sleeve
15.1 Hohlkehle  15.1 Coving
α Austrittswinkel α exit angle
L Längsachse  L longitudinal axis
R Rotationsachse  R rotation axis
Radialrichtung  radial direction

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS
1. Wickelvorrichtung (4) zur Herstellung einer elektrischen Spule durch Wickeln eines Spulendrahtes (3) auf einen Spulenkörper (7), wobei die Wickelvorrichtung (4) umfasst: Winding device (4) for producing an electrical coil by winding a coil wire (3) onto a bobbin (7), wherein the winding device (4) comprises:
- mindestens eine drehbar gelagerte und mit einem Antrieb (5) versehene Spu- lenkörperaufnahme (6) zur Aufnahme eines Spulenkörpers (7),  - At least one rotatably mounted and with a drive (5) provided lumbarkörperaufnahme (6) for receiving a bobbin (7),
- mindestens ein jeweils einer Spulenkörperaufnahme (6) zugeordnetes Draht- führerröhrchen (1), durch welches ein Spulendraht (3) zum jeweiligen zu bewickelnden Spulenkörper (7) führbar ist, wobei das Drahtführerröhrchen (1) zumindest traversierend parallel zu einer Rotationsachse (R) der Spulenkörperaufnahme (6) führbar ist,  at least one wire guide tube (1), each associated with a bobbin receptacle (6), through which a coil wire (3) can be guided to the respective bobbin (7) to be wound, the wire guide tube (1) at least traversing parallel to a rotation axis (R) the bobbin receptacle (6) is feasible,
dadurch gekennzeichnet, dass mindestens eine Kraftmessvorrichtung (8) zum Messen einer auf das Drahtführerröhrchen (1) wirkenden Kraft in mindestens einer radial zu einer Längsachse (L) des Drahtführerröhrchens (1) liegenden Richtung (x, y) vorgesehen ist.  characterized in that at least one force measuring device (8) is provided for measuring a force acting on the wire guide tube (1) in at least one direction (x, y) lying radially to a longitudinal axis (L) of the wire guide tube (1).
2. Wickelvorrichtung (4) nach Anspruch 1, dadurch gekennzeichnet, dass die Kraftmessvorrichtung (8) mindestens einen an dem Drahtführerröhrchen (1) und/oder an einer Aufnahmevorrichtung (2) zur Aufnahme des Drahtführerröhrchens (1) angeordneten Dehnungsmessstreifen umfasst. Second winding device (4) according to claim 1, characterized in that the force measuring device (8) comprises at least one of the wire guide tube (1) and / or on a receiving device (2) for receiving the wire guide tube (1) arranged strain gauges.
3. Wickelvorrichtung (4) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass eine Überwachungsvorrichtung (10) mit der Kraftmessvorrichtung (8) verbunden ist, mittels derer von der Kraftmessvorrichtung (8) ermittelte Messwerte aufzeichenbar sind. 3. Winding device (4) according to one of claims 1 or 2, characterized in that a monitoring device (10) with the force measuring device (8) is connected, by means of which by the force measuring device (8) determined measured values are recordable.
4. Wickelvorrichtung (4) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein Parkierstift (13) vorgesehen ist, auf dem der Spulendraht (3) vor und/oder nach einem Wickelvorgang fixierbar ist, wobei am Parkierstift (13) eine weitere Kraftmessvorrichtung (14) zum Messen einer auf den Parkierstift (13) wirkenden Kraft angeordnet ist. 4. Winding device (4) according to one of the preceding claims, characterized in that at least one parking pin (13) is provided, on which the coil wire (3) can be fixed before and / or after a winding process, wherein the parking pin (13) another Force measuring device (14) for measuring a force acting on the parking pin (13) force is arranged.
5. Wickelvorrichtung (4) nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die Überwachungsvorrichtung (10) Berechnungsmittel zur trigonometrischen Berechnung einer auf den Spulendraht (3) wirkenden Kraft in dessen Längsrichtung anhand der mittels der Kraftmessvorrichtung (8) ermittelten Kraft und einem Austrittswinkel (a) des Spulendrahtes (3) aus dem Drahtführerröhrchen (1) gegenüber dessen Längsachse (L) aufweist. 5. Winding device (4) according to any one of claims 3 or 4, characterized in that the monitoring device (10) calculating means for trigonometric calculation of a force acting on the coil wire (3) force in the longitudinal direction by means of the force measuring device (8) determined force and an exit angle (a) of the coil wire (3) from the wire guide tube (1) with respect to its longitudinal axis (L).
6. Wickelvorrichtung (4) nach Anspruch 5, dadurch gekennzeichnet, dass eine optische Messvorrichtung (11) zum Ermitteln des Austrittswinkels (a) vorgesehen und mit der Überwachungsvorrichtung (10) verbunden ist. 6. Winding device (4) according to claim 5, characterized in that an optical measuring device (11) for determining the exit angle (a) is provided and connected to the monitoring device (10).
7. Wickelvorrichtung (4) nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass die Überwachungsvorrichtung (10) Mittel zur Überwachung eines Fortschritts des Wickelvorgangs umfasst, mittels deren zumindest eine aktuelle Position des Drahtführerröhrchens (1) relativ zum Spulenkörper (7) ermittelbar und dementsprechend der Austrittswinkel (a) bestimmbar sind. 7. Winding device (4) according to any one of claims 5 or 6, characterized in that the monitoring device (10) comprises means for monitoring a progress of the winding process, by means of which at least one current position of the wire guide tube (1) relative to the bobbin (7) determined and accordingly the exit angle (a) can be determined.
8. Wickelvorrichtung (4) nach Anspruch 7, dadurch gekennzeichnet, dass die Mittel zur Überwachung des Fortschritts des Wickelvorgangs zur Ermittlung eines Radialabstands einer aktuell gewickelten Lage zur Rotationsachse (R) der Spulenkörperaufnahme (6) und zur Berücksichtigung des Radialabstands bei der Bestimmung des Austrittswinkels (a) ausgebildet sind. 8. Winding device (4) according to claim 7, characterized in that the means for monitoring the progress of the winding process for determining a radial distance of a currently wound layer to the axis of rotation (R) of the bobbin receptacle (6) and to take into account the radial distance in the determination of the exit angle (a) are formed.
9. Wickelvorrichtung (4) nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass eine Vielzahl von Spulenkörperaufnahmen (6) zur Aufnahme jeweiliger Spulenkörper (7) sowie eine Vielzahl von Drahtführerröhrchen (1) vorgesehen ist, von denen jeweils eines jeder Spulenkörperaufnahmen (6) zugeordnet ist, wobei die Wickelvorrichtung (4) zum synchronen Bewickeln der Spulenkörper (7) ausgebildet ist, wobei die Überwachungsvorrichtung (10) zur Überwachung der Kräfte an jedem der Drahtführerröhrchen (1) und deren Vergleich miteinander ausgebildet ist. 9. Winding device (4) according to one of claims 3 to 8, characterized in that a plurality of bobbin receptacles (6) for receiving respective bobbin (7) and a plurality of wire guide tubes (1) each of which is associated with each bobbin receptacles (6), wherein the winding device (4) for synchronous winding of the bobbin (7) is formed, wherein the monitoring device (10) for monitoring the forces on each of the wire guide tubes (1) and their comparison is formed with each other.
10. Verfahren zum Betrieb einer Wickelvorrichtung (4) nach einem der vorhergehenden Ansprüche, wobei ein Spulenkörper (7) mittels einer drehbar gelagerten Spulenkörperaufnahme (6) aufgenommen und mittels eines mit der Spu- lenkörperaufnahme (6) verbundenen Antriebs (5) rotiert wird, 10. A method for operating a winding device (4) according to one of the preceding claims, wherein a bobbin (7) is received by means of a rotatably mounted bobbin receptacle (6) and rotated by means of a with the bobbin receptacle (6) drive (5),
wobei durch ein der Spulenkörperaufnahme (6) zugeordnetes Drahtführerröhrchen (1) ein Spulendraht (3) zum zu bewickelnden Spulenkörper (7) geführt wird, wobei das Drahtführerröhrchen (1) zumindest traversierend parallel zu einer Rotationsachse (R) der Spulenkörperaufnahme (6) geführt wird, dadurch gekennzeichnet, dass mittels einer Kraftmessvorrichtung (8) eine in mindestens einer radial zu einer Längsachse (L) des Drahtführerröhrchens (1) liegenden Richtung (x, y) wirkende Kraft gemessen wird.  wherein a coil wire (3) is guided to the coil body (7) to be wound by a wire guide tube (1) associated with the coil body receptacle (6), wherein the wire guide tube (1) is guided at least traversingly parallel to a rotation axis (R) of the coil body receptacle (6) , characterized in that by means of a force measuring device (8) in at least one radially to a longitudinal axis (L) of the Drahtführerröhrchens (1) lying direction (x, y) acting force is measured.
EP15713421.4A 2014-04-02 2015-03-25 Winding device and method for the operation thereof Not-in-force EP3127128B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014206251.9A DE102014206251B3 (en) 2014-04-02 2014-04-02 Winding device and method for its operation
PCT/EP2015/056350 WO2015150178A1 (en) 2014-04-02 2015-03-25 Winding device and method for the operation thereof

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EP3127128B1 EP3127128B1 (en) 2017-11-29

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DE (1) DE102014206251B3 (en)
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DE102019207865A1 (en) * 2019-05-29 2020-12-03 Audi Ag Winding needle, winding system for wire windings and method for producing a wire winding
DE102020114398A1 (en) 2020-05-28 2021-12-02 Audi Aktiengesellschaft Needle winding device for winding an electromagnetically effective component of an electrical machine and a method for operating a needle winding device

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US4586667A (en) * 1980-10-27 1986-05-06 General Electric Company Flyer method
DE3837853A1 (en) * 1988-11-08 1990-05-10 Blume & Redecker Gmbh Method and apparatus for the winding of wire onto reels
FR2655888A1 (en) * 1989-12-20 1991-06-21 Prosys WIRE TENSION REGULATOR FOR POWERING A WINDING MACHINE FROM A NOURISHMENT.
DE4019140A1 (en) * 1990-06-13 1991-12-19 Siemens Ag Wire tension control - has brake wheel on drive shaft with hysteresis coupling while winding electrical coils
DE59302791D1 (en) * 1992-03-30 1996-07-11 Meteor Ag Device and method for regulating the tension of a thread-like material, preferably a winding wire for electrical coils
JP3177193B2 (en) * 1997-07-02 2001-06-18 日特エンジニアリング株式会社 Winding machine and winding method

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Title
See references of WO2015150178A1 *

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HUE038204T2 (en) 2018-09-28

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