JP6232238B2 - Winding device and winding method - Google Patents

Description

  The present invention relates to a winding device and a winding method.

  Conventionally, in a motor manufacturing process, an armature coil is formed using a winding device. In the winding device, a conducting wire is wound around a core made of a magnetic material. In particular, in recent years, in order to efficiently perform the winding work, a winding device has been proposed in which an annular core is divided into a plurality of pieces and a conductive wire is wound around the divided core, which is an individual piece.

For example, Japanese Patent Application Laid-Open No. 2010-259212 discloses a conventional winding device that winds a conductive wire around a split core. In the apparatus of the publication, two bobbins outsert-molded on a core piece are mounted on a spindle, and a wire is supplied while rotating the spindle to perform winding.
JP 2010-259212 A

  When a conducting wire is continuously wound around a plurality of divided cores, a connecting portion of the conducting wire is generated between the divided cores. There is a risk that the crossover portion may be damaged by contact with the corners of the split core or the outside, or may be electrically connected to the split core. For this reason, it is preferable to arrange a cylindrical insulating tube in the connecting portion of the conducting wire to protect the connecting portion. That is, it is preferable to mount a mechanism for disposing the insulating tube on the connecting portion of the conducting wire in the winding device.

  In this regard, Japanese Patent Application Laid-Open No. 2010-259212 uses a pair of side walls configured to be capable of forming both an approaching state that prohibits passage of the tube and a separated state that allows passage of the tube, It is described that a continuous coil is obtained by inserting a tube into a wire between the coils (paragraph 0012). However, in the structure of the publication, if the positioning of the pair of side walls is insufficient in the approaching state, the tube may pass between the pair of side walls. Therefore, it is necessary to position the pair of side walls with high accuracy.

  An object of the present invention is to provide a winding device in which an insulating tube can be arranged at a desired position of a wire rod and the insulating tube can be stopped more reliably by stopping and feeding the insulating tube at a desired timing. And providing a winding method.

  An exemplary first invention of the present invention is a winding device in which a cylindrical insulating tube that is slidably attached to a wire is placed at a desired location while the wire is wound around a member to be wound. A supply path for supplying a wire to the wound member side, a plurality of wall surfaces and an insulating tube stopper including a gap located between the plurality of wall surfaces, and a relative position between the plurality of wall surfaces and the supply path A first movement mechanism that can change the position, and the plurality of wall surfaces are opposed to the side surfaces of the wire, and the first movement mechanism is provided between at least one of the plurality of wall surfaces and the wire. The distance is smaller than the difference between the diameter of the wire and the diameter of the insulating tube, and the distance between the wire and the approach state and at least one of the plurality of wall surfaces is larger than the diameter of the wire. Between the retraction state and the supply path. The relative position of the walls of which can be changed, and a winding device.

  An exemplary second invention of the present invention is a cylindrical shape that is slidably attached to the wire while supplying the wire to the wound member along the supply path and winding the wire around the wound member. A winding method in which an insulating tube is arranged at a desired location by an insulating tube stopper having a plurality of wall surfaces, wherein a) a step of arranging the insulating tube upstream of the supply path, and b) a step a. ), The positional relationship between the wire and the insulating tube stopper is determined so that the distance between at least one of the plurality of wall surfaces and the wire is the diameter of the wire and the diameter of the insulating tube. A step of making an approach state smaller than the difference and bringing the downstream end of the insulating tube into contact with the insulating tube stopper; c) a step of winding a wire around the member to be wound after the step b) And d) after the step c), the line And a step of bringing the positional relationship between the insulating tube stopper and at least one of the plurality of wall surfaces into a retracted state in which the distance is larger than the diameter of the wire, and e) the insulation together with the wire And a step of feeding the pipe to the downstream side.

  An exemplary third invention of the present application is a winding device in which a cylindrical insulating tube that is slidably attached to the wire is placed at a desired location while the wire is wound around the member to be wound. A supply path for supplying a wire to the wound member side, an insulating tube stopper having a notch that opens toward the supply path, an approaching state in which the wire passes through the notch, and the wire A moving mechanism for moving the supply path and the insulating tube stopper relative to each other between a retracted state passing outside the opening end of the notch, and the wire rod is notched in the approaching state. In the winding device, the width of at least a part of the notch in a position passing through is smaller than the outer diameter of the insulating tube.

  An exemplary fourth invention of the present application is a cylindrical shape that is slidably attached to the wire while supplying the wire to the wound member along the supply path and winding the wire around the wound member. A winding method for disposing an insulating tube at a desired location, wherein a) a step of disposing the insulating tube upstream of the supply path from an insulating tube stopper having a notch; b) the step a) Thereafter, the step of bringing the insulating pipe stopper close to the supply path, the wire rod passing through the notch, and bringing the downstream end of the insulating pipe into contact with the insulating pipe stopper; c) A winding method including, after the step b), separating the notch from the supply path and feeding the insulating tube together with the wire to the downstream side.

  According to the first to fourth exemplary inventions of the present application, the insulating tube can be stopped by bringing the insulating tube stopper into contact with the downstream end of the insulating tube during the supply of the wire. Further, by retracting the insulating tube stopper at a desired timing, the insulating tube can be sent out downstream. Thereby, an insulating tube can be arrange | positioned in the desired location of a wire. Further, the width of the notch provided in the insulating tube stopper does not vary. For this reason, an insulating pipe can be stopped more reliably than a case where a plurality of members are approached and an insulating pipe is stopped.

FIG. 1 is a schematic diagram of a winding device according to a first embodiment of the present invention. FIG. 2 is a schematic diagram of the winding device according to the first embodiment of the present invention. FIG. 3 is a perspective view of the guide unit according to the first embodiment of the present invention. FIG. 4 is a perspective view of the guide unit according to the first embodiment of the present invention. FIG. 5 is a perspective view of the guide unit according to the first embodiment of the present invention. FIG. 6 is a view of the insulating tube stopper, the conducting wire, and the insulating tube as viewed from the downstream side of the supply path in the first embodiment of the present invention. FIG. 7 is a flowchart showing a procedure for winding a conductive wire around a pair of split cores in the first embodiment of the present invention. FIG. 8 is a perspective view of a guide unit according to the second embodiment of the present invention. FIG. 9 is a perspective view of a guide unit according to the second embodiment of the present invention. FIG. 10 is a view of the insulating tube stopper, the conducting wire, and the insulating tube as viewed from the downstream side of the supply path in the second embodiment of the present invention. FIG. 11 is a view as seen from the downstream side of the insulating tube stopper, the conducting wire, the insulating tube, and the supply path according to the first embodiment of the present invention. FIG. 12 is a flowchart showing a procedure for winding a conductive wire around a pair of split cores in the second embodiment of the present invention. FIG. 13 is a schematic view of a winding device according to the second embodiment of the present invention.

  Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings.

<1. About the configuration of the winding device>
1 and 2 are schematic views of the winding device 1 according to the first embodiment of the present invention. The winding device 1 is a device for forming an armature coil in a motor manufacturing process. The winding device 1 forms a coil by winding a conducting wire 91 that is a wire around a pair of split cores 81 and 82 that become a magnetic core of the coil. After the coil is formed, the pair of split cores 81 and 82 are taken out from the winding device 1, and a plurality of the pair of split cores 81 and 82 are combined to form one annular core.

  The winding device 1 continuously winds the conductive wire 91 around the pair of split cores 81 and 82. For this reason, as shown in FIG. 2, a connecting portion 911 of the conducting wire 91 is generated between the pair of split cores 81 and 82. The winding device 1 has a function of arranging a substantially cylindrical insulating tube 92 slidably attached to the conducting wire 91 in the crossing portion 911. As the material of the insulating tube 92, for example, an insulating material such as resin is used. The connecting portion 911 of the conducting wire 91 is protected by the insulating tube 92. Thereby, damage to the transition part 911 and electrical conduction between the transition part 911 and the split cores 81 and 82 are prevented.

  As shown in FIGS. 1 and 2, the winding device 1 of the present embodiment includes a feeding unit 10, a guide unit 20, a drive stage 30, a rotation holding unit 40, and a control unit 50. Hereinafter, for convenience of explanation, the feeding unit 10 side is referred to as “upstream side” and the rotation holding unit 40 side is referred to as “downstream side” along the supply path of the conducting wire 91.

  The feeding portion 10 has a substantially cylindrical reel 11. The reel 11 is installed so as to be rotatable about its central axis. An unused conducting wire 91 is wound around the outer peripheral surface of the reel 11. The feeding unit 10 rotates the reel 11 in conjunction with rotation of a rotation holding unit 40 described later. Thereby, the conducting wire 91 is fed out from the reel 11. The drawn lead 91 is sent to the guide unit 20.

  The guide unit 20 is a mechanism that guides the conducting wire 91 fed from the feeding unit 10 to the rotation holding unit 40 side. The guide unit 20 defines a supply path 80 for the conducting wire 91 between the feeding unit 10 and the rotation holding unit 40. In addition, the guide unit 20 has a mechanism for causing the insulating pipe 92 to temporarily stand by and sending the insulating pipe 92 to the downstream side of the supply path 80 at a desired timing. The detailed configuration of the guide unit 20 will be described later.

  The drive stage 30 is a mechanism that moves the guide unit 20 in three dimensions while supporting the guide unit 20. The drive stage 30 includes a support base 31 that supports the guide unit 20 and a support base moving mechanism 32 that moves the support base 31 in the vertical direction, the left-right direction, and the front-back direction. The support table moving mechanism 32 moves the support table 31 based on a control signal received from the control unit 50. Thereby, the position of the supply path 80 of the conducting wire 91 is adjusted. The support base moving mechanism 32 can be realized, for example, by combining a plurality of mechanisms that convert the rotational drive of the motor into a linear motion via a ball screw.

  The rotation holding unit 40 is a mechanism that rotates the pair of split cores 81 and 82 while holding the pair of split cores 81 and 82. As shown in FIGS. 1 and 2, the rotation holding unit 40 includes a core holder 41 and a holder rotation mechanism 42. The pair of split cores 81 and 82 are held by the core holder 41. The pair of split cores 81 and 82 held by the core holder 41 are arranged side by side along the rotation axis 421 of the holder rotation mechanism 42. The core holder 41 is provided with a latching portion (not shown) for fixing the tip of the conducting wire 91.

  The holder rotating mechanism 42 rotates the core holder 41 around a rotating shaft 421 that is orthogonal to the supply path 80 of the conducting wire 91. When the core holder 41 rotates, the pair of split cores 81 and 82 held by the core holder 41 also rotate about the rotation shaft 421. The holder rotation mechanism 42 can be realized, for example, by driving a motor.

  The control unit 50 is electrically connected to the feeding unit 10, the support moving mechanism 32, and the holder rotation mechanism 42 described above. The control unit 50 is also electrically connected to a guide opening / closing mechanism 22, a clamper driving mechanism 25, and a stopper moving mechanism 27, which will be described later. The control unit 50 may be configured by a computer having an arithmetic processing unit such as a CPU and a memory, or may be configured by an electronic circuit board. The control unit 50 controls each unit described above based on a preset program or an external input signal. Thereby, the winding process in the winding apparatus 1 proceeds.

<2. Guide unit configuration>
Next, a more detailed configuration of the guide unit 20 will be described. 3 to 5 are perspective views of the guide unit 20. As shown in FIGS. 3 to 5, the guide unit 20 of the present embodiment includes a guide 21, a guide opening / closing mechanism 22, a housing 23, an insulating tube clamper 24, a clamper driving mechanism 25, an insulating tube stopper 26, and a stopper moving mechanism. 27.

  The guide 21 has three guide members 211. The three guide members 211 are arranged at substantially equal intervals around the supply path 80 of the conducting wire 91. In FIG. 5, the two guide members 211 are not shown to clearly show the insulating tube stopper 26. Each guide member 211 is supported so as to be rotatable between a collective state in which the respective distal ends approach the supply path 80 and an open state in which the respective distal ends are separated from the supply path 80. In the assembled state, a hole surrounding the supply path 80 is formed by the tip of each guide member 211. The conducting wire 91 is conveyed to the downstream side of the supply path 80 through the hole. Thereby, the position shift of the conducting wire 91 in the direction orthogonal to the supply path 80 is limited.

  In addition, the guide 21 may be comprised by two members, or may be comprised by four or more members.

  The guide opening / closing mechanism 22 is a mechanism that rotates the three guide members 211 in conjunction with each other. The guide opening / closing mechanism 22 of the present embodiment converts the driving force of the air cylinder 221 into a rotational motion via the connecting plate 222 and rotates the three shafts 223 in conjunction with each other. Then, the three guide members 211 respectively fixed to the three shafts 223 rotate in conjunction with each other. As a result, the collective state and the open state of the guide 21 are switched.

  However, the guide opening / closing mechanism 22 may have another configuration as long as the three guide members 211 can be rotated in conjunction with each other. For example, the guide opening / closing mechanism 22 may use a motor as a drive source.

  The housing 23 is disposed between the guide 21 and the connecting plate 222. That is, the housing 23 is disposed along the supply path 80 on the side of the feeding portion 10 that is a supply source of the conducting wire 91 with respect to the guide 21. The three shafts 223 and the stopper moving mechanism 27 are supported by the housing 23. The supply path 80 of the conducting wire 91 extends through the connecting plate 222 and the housing 23 to the guide 21 side. The three shafts 223 pass through the housing 23 along the supply path 80 of the conducting wire 91. A housing space 231 for temporarily housing the insulating tube 92 is provided inside the housing 23.

  The insulating tube clamper 24 is a mechanism that holds the insulating tube 92 attached to the conducting wire 91 so as to be slidable along the supply path 80. The insulating tube clamper 24 has a pair of clamp members 241 arranged in a direction perpendicular to the supply path 80 of the conducting wire 91. The pair of clamp members 241 are configured to be able to approach and separate from each other. The insulating tube 92 is sandwiched and held by a pair of clamp members 241 that are close to each other.

  The clamper driving mechanism 25 is a mechanism that moves the insulating tube clamper 24 along the supply path 80. As a drive source of the clamper drive mechanism 25, for example, an air cylinder can be used. When the clamper driving mechanism 25 is operated, the insulating tube clamper 24 holding the insulating tube 92 is moved from the position closer to the rotation holding unit 40 than the guide 21 (position shown in FIG. 3) to the position inside the housing 23 (position shown in FIG. 4). ). Thereby, the insulating tube 92 is disposed in the accommodation space 231 inside the housing 23.

  The insulating tube stopper 26 is a substantially plate-like member disposed between the guide 21 and the housing 23. As the material of the insulating tube stopper 26, for example, a metal such as iron is used. As shown in FIGS. 3 to 5, the insulating tube stopper 26 of the present embodiment extends obliquely upward from the vicinity of the supply path 80 along the surface of the housing 23 on the guide 21 side. Further, as shown in FIG. 5, a notch 261 is provided at the tip of the insulating tube stopper 26 on the supply path 80 side. The notch 261 is open toward the supply path 80.

  The stopper moving mechanism 27 is a mechanism for moving the insulating tube stopper 26. The stopper moving mechanism 27 is fixed to the surface of the housing 23 on the guide 21 side. The stopper moving mechanism 27 of the present embodiment is configured using an air cylinder. However, other drive sources such as a motor may be used instead of the air cylinder.

  When the stopper moving mechanism 27 is driven, the insulating tube stopper 26 is in an approaching state (the state shown in FIG. 5) approaching the supply path 80 of the conducting wire 91 and a retracted state (the state shown in FIG. 4) away from the supplying path 80 of the conducting wire 91. ) In the direction perpendicular to the supply path 80. In the approaching state, the conducting wire 91 passes through the notch 261. On the other hand, in the retracted state, the conducting wire 91 passes outside the opening end of the notch 241.

  FIG. 6 is a view of the insulating tube stopper 26, the conducting wire 91, and the insulating tube 92 in the approaching state as viewed from the downstream side of the supply path 80. As shown in FIG. 6, in the present embodiment, the width d1 of the notch 261 at the position through which the conducting wire 91 passes is larger than the outer diameter d2 of the conducting wire 91 and smaller than the outer diameter d3 of the insulating tube 92. For this reason, in the approaching state, the conducting wire 91 can pass through the notch 261 and the insulating tube 92 cannot pass through the notch 261.

  For this reason, if the insulating tube stopper 26 is brought into the approaching state, the downstream end portion of the insulating tube 92 contacts the insulating tube stopper 26 during the supply of the conducting wire 91. Thereby, the insulating tube 92 can be stopped. Further, by moving the insulating tube stopper 26 to the retracted position at a desired timing, the insulating tube 92 can be sent to the downstream side of the supply path 80 together with the conducting wire 91. Thereby, an insulating tube can be arrange | positioned in the desired location of the conducting wire 91. FIG.

  In the present embodiment, the notch 261 is provided in the insulating tube stopper 26 that is a plate-like member. The cutout 261 realizes a space that prohibits the passage of the insulating tube stopper 26 while allowing the passage of the conductor 91. For this reason, even if a slight error occurs in the positioning of the insulating tube stopper 26, the width d1 of the notch 261 itself does not vary. For this reason, the insulating tube 92 can be stopped more reliably than when the insulating tube 92 is stopped by bringing a plurality of members close to each other.

  The width d1 of the notch 261 may be different depending on the position of the notch 261 in the depth direction. The width d <b> 1 of at least some of the notches 261 may be larger than the outer diameter of the conducting wire 91 and smaller than the outer diameter of the insulating tube 92.

  As shown in FIG. 6, in this embodiment, the shape of the notch 261 of the insulating tube stopper 26 is substantially U-shaped when viewed from the upstream side or the downstream side of the supply path 80 of the conducting wire 91. The substantially U-shaped notch 261 has a larger portion where the width d1 of the notch 261 is constant than the substantially V-shaped notch. Further, the substantially U-shaped cutout 261 does not have a corner like a rectangular cutout. For this reason, if the substantially U-shaped notch 261 is employed, the area of the insulating tube stopper 26 that hits the downstream end of the insulating tube 92 can be increased compared to the V-shaped or rectangular notch. Can do. In addition, when the substantially U-shaped notch 261 is employed, the work of polishing and cleaning the surface constituting the notch 261 of the insulating tube stopper 26 becomes easy.

  However, the notch of the present invention is not limited to the substantially U-shaped notch 261. The notch of the present invention may be a V-shaped notch or a rectangular notch as long as the above-described relationship between the notch width, the outer diameter of the conducting wire, and the outer diameter of the insulating tube is satisfied.

  Further, as shown in FIG. 6, the insulating tube stopper 26 of the present embodiment has a pair of tapered surfaces 262 at the opening end of the notch 261. The distance between the pair of tapered surfaces 262 increases as the conductor 91 moves toward the supply path 80 side. Therefore, when the insulating tube stopper 26 is moved from the retracted state to the approaching state, even if the relative position between the notch 261 and the conductor 91 is slightly shifted, the conductor 91 is notched along the tapered surface 262. Guided into the interior of H.261. Therefore, the conducting wire 91 can be more reliably arranged inside the notch 261.

  Further, as shown in FIG. 5, in this embodiment, the guide 21 and the insulating tube stopper 26 are disposed at adjacent positions along the supply path 80. Therefore, the moving distance of the insulating tube 92 by the insulating tube clamper 24, that is, the moving distance of the insulating tube 92 from the state of FIG. 3 to the state of FIG. Therefore, the winding device 1 can be further downsized. Further, the position of the conducting wire 91 is stabilized in the vicinity of the guide 21. Therefore, the conducting wire 91 can be accurately arranged inside the notch 261. As a result, the stop position of the insulating tube 92 can be accurately determined.

  As shown in FIGS. 1 and 5, in the present embodiment, when the insulating tube 92 is stopped by the insulating tube stopper 26, the insulating tube 92 is disposed in the accommodation space 231 in the housing 23. Further, a part other than the shaft 223 of the guide opening / closing mechanism 22 is disposed further upstream of the supply path 80 than the housing 23. For this reason, there is no possibility that the insulating tube 92 stopped by the insulating tube stopper 26 interferes with the guide opening / closing mechanism 22.

  In the present embodiment, the insulating tube clamper 24 and the insulating tube stopper 26 are arranged at different positions around the supply path 80 of the conducting wire 91. Further, the insulating tube stopper 26 moves in a direction orthogonal to the supply path 80 along the opening direction of the notch 261. For this reason, the notch 261 of the insulating tube stopper 26 at the retracted position is located at a location deviating from the movement locus of the insulating tube clamper 24. In this way, the insulating tube stopper 26 and the insulating tube clamper 24 in the retracted position do not come into contact with each other. Therefore, the insulating tube stopper 26 in the retracted position can be disposed near the supply path 80 of the conducting wire 91 to shorten the moving distance of the insulating tube stopper 26. If the moving distance of the insulating tube stopper 26 is shortened, the rigidity of the insulating tube stopper 26 can be easily obtained.

<3. Operation during winding>
FIG. 7 is a flowchart showing an operation procedure when the conductor 91 is wound around the pair of split cores 81 and 82 in the winding device 1. In the winding apparatus 1, the user sets a pair of split cores 81 and 82 in the core holder 41 in advance. Further, the end portion of the conducting wire 91 drawn to the downstream side of the guide 21 along the supply path 80 is inserted into the insulating tube 92. Thus, the insulating tube 92 is attached to the conducting wire 91 so as to be slidable. The operation of inserting the tip of the conducting wire 91 into the insulating tube 92 may be performed manually by a user or may be performed by an automatic insertion mechanism prepared separately. Further, the user of the winding device 1 fixes the downstream end of the conducting wire 91 to the hooking portion of the core holder 41.

  Thereafter, the user of the winding apparatus 1 inputs a command for starting the winding operation to the control unit 50. Then, the control unit 50 controls the feeding unit 10, the support moving mechanism 32, the holder rotating mechanism 42, the guide opening / closing mechanism 22, the clamper driving mechanism 25, and the stopper moving mechanism 27, and the following series of processes proceeds. To do.

  First, on the downstream side of the supply path 80 from the guide 21, the pair of clamp members 241 of the insulating pipe clamper 24 holds the insulating pipe 92 (step S1). Next, the guide opening / closing mechanism 22 operates and the three guide members 211 are opened. Subsequently, the clamper driving mechanism 25 operates, and the pair of clamp members 241 holding the insulating tube 92 moves upstream along the supply path 80. As a result, the insulating tube 92 is disposed on the upstream side of the supply path 80 from the insulating tube stopper 26 (step S2). That is, the insulating tube 92 is disposed in the accommodation space 231 in the housing 23.

  When the insulating tube 92 is disposed in the accommodation space 231, the guide opening / closing mechanism 22 operates again, and the three guide members 211 are brought into a collective state. Thereby, the position shift of the conducting wire 91 with respect to the supply path 80 is suppressed.

  Next, the stopper moving mechanism 27 operates, and the insulating tube stopper 26 approaches the supply path 80 of the conducting wire 91. That is, the insulating tube stopper 26 is brought into an approaching state (step S3). As a result, the conducting wire 91 passes through the notch 261. Thereafter, the pair of clamp members 241 is switched from the approaching state to the separating state. As a result, the holding of the insulating tube 92 is released.

  In this state, when the holder rotating mechanism 42, the holder moving mechanism 43, and the reel 11 are operated, the conducting wire 91 is supplied along the supply path 80 to the split cores 81 and 82 side. However, the insulating tube 92 cannot pass through the notch 261 of the insulating tube stopper 26. Therefore, the downstream end of the insulating tube 92 comes into contact with the upstream surface of the insulating tube stopper 26 and stops. That is, the insulating tube 92 can be stopped on the upstream side of the insulating tube stopper 26 while supplying the conductive wire 91 to the divided cores 81 and 82 side.

  As shown in FIG. 1, the conducting wire 91 supplied to the divided cores 81 and 82 is first wound around one divided core (first divided core) 81 (step S4). The stopper moving mechanism 27 operates at a timing corresponding to the completion of the winding of the conducting wire 91 around the first split core 81, and the notch 261 of the insulating tube stopper 26 is separated from the supply path 80 of the conducting wire 91. That is, the insulating tube stopper 26 is in the retracted state (step S5). Then, the insulating tube 92 is sent out to the downstream side of the supply path 80 together with the conducting wire 91 (step S6). As a result, the insulating tube 92 is disposed at the crossing portion 911 of the conducting wire 91.

  Thereafter, the operations of the holder rotating mechanism 42, the holder moving mechanism 43, and the reel 11 are further continued. Thereby, as shown in FIG. 2, the conducting wire 91 is wound around the other divided core (second divided core) 82 (step S7).

<4. Second embodiment>
Next, the winding device according to the second embodiment of the present invention will be described in detail.

  The insulating tube stopper 26 is a substantially plate-like member disposed between the guide 21 and the housing 23. As the material of the insulating tube stopper 26, for example, a metal such as iron is used. As shown in FIGS. 8 and 9, the insulating tube stopper 26 of the present embodiment extends obliquely upward from the vicinity of the supply path 80 along the surface on the guide 21 side of the housing 23. Further, as shown in FIGS. 8 and 9, the insulating tube stopper 26 includes a plurality of wall surfaces 281 and 282 and a gap 29 positioned between the plurality of wall surfaces 281 and 282. Each of the plurality of wall surfaces 28 faces the side surface of the conductive wire 91.

  In the present embodiment, the insulating tube stopper 26 includes a first wall surface 281 and a second wall surface 282 as a plurality of wall surfaces. The first wall surface 281 extends in the horizontal direction, and the second wall surface 282 is connected to one end of the first wall surface 281 and extends in the vertical direction. More generally, the first wall surface 281 may extend in one direction, and the second wall surface 282 only needs to extend in another direction different from the one direction. In the present embodiment, one direction and the other direction form an angle of 90 degrees. However, in other embodiments of the present invention, this angle may be an angle other than 90.

  The stopper moving mechanism 27 that is the first moving mechanism of the present embodiment is a mechanism that moves the insulating tube stopper 26. The stopper moving mechanism 27 is fixed to the surface of the housing 23 on the guide 21 side. The stopper moving mechanism 27 of the present embodiment is configured using an air cylinder. However, other drive sources such as a motor may be used instead of the air cylinder. The first moving mechanism only needs to change the relative positions of the plurality of wall surfaces 28 of the insulating tube stopper 26 and the supply path 80. That is, the first moving mechanism may be a mechanism that moves the insulating tube stopper 26 or a mechanism that moves the supply path 80.

  When the stopper moving mechanism 27 is driven, the insulating tube stopper 26 moves along the direction intersecting with the direction in which the supply path 80 extends, and can take at least two states of an approaching state and a retracted state. In the approaching state, the distance between at least one of the plurality of wall surfaces 28 and the conducting wire 91 is smaller than the difference between the diameter of the conducting wire 91 and the diameter of the insulating tube 92. In the retracted state, the distance between each of the plurality of wall surfaces 28 and the conductor 91 is larger than the diameter of the conductor 91. Here, at least one of the plurality of wall surfaces 28 is at least one of the first wall surface 281 or the second wall surface 282.

  FIG. 10 is a view of the insulating tube stopper 26, the conducting wire 91, and the insulating tube 92 in the approaching state as viewed from the downstream side of the supply path 80. As shown in FIG. 10, in the present embodiment, the distance d4 between the second wall surface 282 that is at least one of the plurality of wall surfaces 28 and the conducting wire 91 is such that the diameter d5 of the conducting wire 91 and the diameter d6 of the insulating tube 92 are Is smaller than d7. For this reason, in the approaching state, the conducting wire 91 can pass through the gap 29 of the insulating tube stopper 26, and the insulating pipe 92 hardly passes through the gap 29 of the insulating pipe stopper 26. Furthermore, if the distance d4 between the wall surface 28 and the conducting wire 91 is made smaller than the thickness of the insulating tube 92, the passage of the insulating tube 92 is more reliably prevented.

  For this reason, if the insulating tube stopper 26 is brought into the approaching state, the downstream end portion of the insulating tube 92 contacts the insulating tube stopper 26 during the supply of the conducting wire 91. Thereby, the insulating tube 92 can be stopped. In addition, by setting the insulating tube stopper 26 in the retracted state at a desired timing, the insulating tube 92 can be sent to the downstream side of the supply path 80 together with the conductive wire 91. Thereby, the insulating tube 92 can be arranged at a desired location of the conducting wire 91.

  In the present embodiment, the notch 261 is provided in the insulating tube stopper 26 that is a plate-like member. A plurality of wall surfaces 281 and 282 appear inside the notch 261. By using the plurality of wall surfaces 281 and 282, a function of preventing the passage of the insulating tube 92 while allowing the passage of the conducting wire 91 is realized. In order to realize this function, it is only necessary that the insulating tube stopper 26 is kept close to the conductor 91. For this reason, even if a slight error occurs in the positioning of the insulating tube stopper 26, the insulating tube 92 does not pass through. When the insulating tube 92 is stopped by bringing a plurality of members close to each other, the positioning error of each member has to be kept small. Therefore, the insulating tube 92 is stopped as compared with the case where the method of the present invention is employed. Things get harder.

  As shown in FIG. 8, in this embodiment, the shape of the notch 261 of the insulating tube stopper 26 is substantially L-shaped when viewed from the upstream side or the downstream side of the supply path 80 of the conducting wire 91. However, the notch of the present invention is not limited to the substantially L-shaped notch 261. What is required in the present invention is a plurality of wall surfaces 28 and gaps 29 between them, and the operation of the present invention can be realized if the plurality of wall surfaces are arranged in pairs. Therefore, the shape of the notch may be V-shaped, U-shaped, or rectangular.

  The case where the insulating tube stopper 26 has the U shape shown in FIG. 11 as in the first embodiment of the present invention will be described. The insulating tube stopper 26 includes a third wall surface 283, a fourth wall surface 284, and a fifth wall surface 285 as the plurality of wall surfaces 28. The third wall surface 283 and the fourth wall surface 284 are opposed to each other through the gap 29. The fifth wall surface 285 extends in a direction crossing at least a part of the gap 29. Note that the fifth wall surface 285 preferably connects the third wall surface 283 and the fourth wall surface 284.

<5. Operation at the time of winding of the winding machine according to the second embodiment>
Below, the operation | movement at the time of the winding of the winding machine concerning 2nd Embodiment of this invention is demonstrated. The parts common to the winding machine according to the first embodiment will be described with reference to FIGS.

  FIG. 12 is a flowchart showing an operation procedure when winding the conductive wire 91 around the pair of split cores 81 and 82 in the winding device 1 according to the second embodiment. In the winding apparatus 1, the user sets a pair of split cores 81 and 82 in the core holder 41 in advance. Further, the end portion of the conducting wire 91 drawn to the downstream side of the guide 21 along the supply path 80 is inserted into the insulating tube 92. Thus, the insulating tube 92 is attached to the conducting wire 91 so as to be slidable. The operation of inserting the tip of the conducting wire 91 into the insulating tube 92 may be performed manually by a user or may be performed by an automatic insertion mechanism prepared separately. Further, the user of the winding device 1 fixes the downstream end of the conducting wire 91 to the hooking portion of the core holder 41.

  Thereafter, the user of the winding apparatus 1 inputs a command for starting the winding operation to the control unit 50. Then, the control unit 50 controls the feeding unit 10, the support moving mechanism 32, the holder rotating mechanism 42, the guide opening / closing mechanism 22, the clamper driving mechanism 25, and the stopper moving mechanism 27, and the following series of processes proceeds. To do.

  First, on the downstream side of the supply path 80 from the guide 21, the pair of clamp members 241 of the insulating pipe clamper 24 holds the insulating pipe 92 (step S1). Next, the guide opening / closing mechanism 22 operates and the three guide members 211 are opened. Subsequently, the clamper driving mechanism 25 operates, and the pair of clamp members 241 holding the insulating tube 92 moves upstream along the supply path 80. As a result, the insulating tube 92 is disposed on the upstream side of the supply path 80 from the insulating tube stopper 26 (step S2). That is, the insulating tube 92 is disposed in the accommodation space 231 in the housing 23.

  Next, the stopper moving mechanism 27 operates, and the insulating tube stopper 26 approaches the supply path 80 of the conducting wire 91. That is, the insulating tube stopper 26 is brought into an approaching state (step S3). As a result, the conducting wire 91 passes through the notch 261. Thereafter, the pair of clamp members 241 is switched from the approaching state to the separating state. As a result, the holding of the insulating tube 92 is released.

  When the insulating tube stopper 26 enters the approaching state, the guide opening / closing mechanism 22 operates again, and the three guide members 211 are brought into a collective state. Thereby, the position shift of the conducting wire 91 with respect to the supply path 80 becomes difficult to occur.

  In this state, when the holder rotating mechanism 42, the holder moving mechanism 43, and the reel 11 are operated, the conducting wire 91 is supplied along the supply path 80 to the split cores 81 and 82 side. However, since the insulating tube 92 is in contact with the upstream surface of the insulating tube stopper 26 at the portions of the wall surfaces 281 and 282 of the insulating tube stopper 26, it cannot pass through the insulating tube stopper 26. That is, the insulating tube 92 can be stopped on the upstream side of the insulating tube stopper 26 while supplying the conductive wire 91 to the divided cores 81 and 82 side.

  As shown in FIG. 13, the conducting wire 91 supplied to the divided cores 81 and 82 is first wound around one divided core (first divided core) 81 (step S4). Then, the stopper moving mechanism 27 operates at a timing corresponding to the completion of the winding of the conducting wire 91 around the first split core 81, and the insulating tube stopper 26 moves away from the supply path 80 of the conducting wire 91. That is, the insulating tube stopper 26 is in the retracted state (step S5). Then, the insulating tube 92 is sent out to the downstream side of the supply path 80 together with the conducting wire 91 (step S6). As a result, the insulating tube 92 is disposed at the crossing portion 911 of the conducting wire 91.

  Thereafter, the operations of the holder rotating mechanism 42, the holder moving mechanism 43, and the reel 11 are further continued. Thereby, as shown in FIG. 2, the conducting wire 91 is wound around the other divided core (second divided core) 82 (step S7).

  Thereafter, as shown in FIG. 13, the support base moving mechanism 32 moves the support base 31. When the state where the conducting wire 91 reaches the second divided core 82 straightly is set to the neutral state, the moving direction of the support base 31 in the above is downstream of the conducting wire 91 with respect to the guide member 211 (the second divided core 82). Side) in the direction in which the insulating tube stopper 26 is present. Thereby, the conducting wire 91 is bent in a direction approaching the wall surface 282 (step S8). Thereby, when the insulating tube stopper 26 is next brought into the approaching state, the conducting wire 91 is positioned by the wall surface 28, and when the guide member 211 is brought into the assembled state, the positional deviation is further less likely to occur. At this time, the guide member 211 is in a collective state. That is, the support base moving mechanism 32 is a second moving mechanism in the present embodiment.

  In step S8, the direction in which the support base 31 is moved is not limited to the above. For example, the support base 31 in FIG. 13 may be configured to move relatively downward (depth direction in the drawing) relative to the second divided core. In that case, the conducting wire 91 is brought close to the wall surface 281. That is, in step S8, the support base moving mechanism 32 that is the second moving mechanism is used to change the relative position of the split core that is the member to be wound and the supply path 80, and the conductive wire 91 is at least one of the plurality of wall surfaces 28. This is a process to bring it closer to one.

  As shown in FIG. 11, when the insulating tube stopper 26 includes the fifth wall surface 285, the direction in which the conductor 91 is brought closer to the fifth wall surface 285 can be selected as the moving direction of the support base 31.

<6. Modification>
As mentioned above, although exemplary embodiment of this invention was described, this invention is not limited to said embodiment.

  For example, in the above-described embodiment, the insulating tube stopper 26 is moved with respect to the supply path 80 of the conducting wire 91 that is stationary relative to the support base 31. The supply path 80 of the conducting wire 91 may be moved relative to the insulating tube stopper 26. That is, the winding device 1 only needs to have a moving mechanism that moves the supply path 80 and the insulating tube stopper 26 relative to each other.

  However, rather than moving the supply path 80 defined by a plurality of members, moving the insulating tube stopper 26, which is a single member, simplifies the structure of the moving mechanism and can further reduce the size of the winding device 1. .

  Further, the wound member of the present invention does not necessarily have to be the split cores 81 and 82 themselves. For example, a resin insulator attached to the split core may be a member to be wound. The winding device of the present invention is not necessarily a device for forming a motor coil. For example, in a manufacturing process of a generator or a transformer, a conductive wire that is a wire may be wound around an iron core that is a member to be wound.

  In the above embodiment, the insulating tube stopper 26 is moved in the substantially horizontal direction, but the moving direction of the insulating tube stopper 26 is not necessarily horizontal. For example, the insulating tube stopper 26 may approach the supply path 80 downward from a position above the supply path 80. Further, the insulating tube stopper 26 may approach the supply path 80 while drawing an arcuate locus by a rotational motion.

  The insulating tube 92 stopped by the approaching insulating tube stopper 26 does not necessarily have to be disposed entirely within the housing 23. That is, it is only necessary that at least a part of the insulating tube 92 is disposed in the housing 23. For example, a portion of the stopped insulating tube 92 may be disposed outside the housing 23 as long as it does not interfere with the guide opening / closing mechanism 22.

  Moreover, about the detailed shape of each member, you may differ from the shape shown by each figure of this application. Moreover, you may combine suitably each element which appeared in said embodiment and modification in the range which does not produce inconsistency.

  The present invention can be used for a winding device and a winding method.

DESCRIPTION OF SYMBOLS 1 Winding device 10 Feeding part 20 Guide unit 21 Guide 22 Guide opening / closing mechanism 23 Case 24 Insulating pipe clamper 25 Clamper driving mechanism 26 Insulating pipe stopper 27 Stopper moving mechanism 28 Wall surface 29 Air gap 30 Drive stage 40 Rotation holding part 50 Control part 80 Supply path 81, 82 Split core 91 Conductor 92 Insulating tube 211 Guide member 231 Accommodating space 262 Tapered surface 281 First wall surface 282 Second wall surface 283 Third wall surface 284 Fourth wall surface 285 Fifth wall surface 911 Crossover portion d1 Notch width d2 Outside diameter of conducting wire d3 Outside diameter of insulating tube d4 Distance between conducting wire and wall surface d5 Diameter of conducting wire d6 Diameter of insulating tube d7 Difference between diameter of conducting wire and diameter of insulating tube

Claims (17)

While winding a wire around a member to be wound, a winding device that arranges a substantially cylindrical insulating tube slidably attached to the wire at a desired location,
A supply path for supplying a wire to the wound member side;
An insulating tube stopper including a plurality of wall surfaces and a gap positioned between the plurality of wall surfaces;
A first movement mechanism capable of changing a relative position between the plurality of wall surfaces and the supply path,
Each of the plurality of wall surfaces faces the side surface of the wire,
The first moving mechanism includes:
The distance between at least one of the plurality of wall surfaces and the wire is smaller than the difference between the diameter of the wire and the diameter of the insulating tube,
A relative position between the supply path and the plurality of wall surfaces can be changed between a retracted state in which a distance between at least one of the plurality of wall surfaces and the wire is larger than a diameter of the wire. There is a winding device. A second moving mechanism capable of changing a relative position between the wound member and the supply path;
The winding device according to claim 1. The plurality of wall surfaces of the insulating tube stopper are:
Including a first wall surface extending in one direction and a second wall surface continuous with one end of the first wall surface and extending in the other direction;
The winding device according to claim 1 or 2. The plurality of wall surfaces include a third wall surface, a fourth wall surface, and a fifth wall surface,
The third wall surface and the fourth wall surface are opposed to each other with the gap between them,
The fifth wall surface extends in a direction across at least a part of the gap;
The winding device according to claim 1 or 2. The second moving mechanism capable of changing the relative position between the wound member and the supply path is:
Performing a relative movement for moving the supply path toward at least one of the plurality of wall surfaces, and a relative movement for moving away from the wall;
The winding device according to claim 3. The second moving mechanism capable of changing the relative position between the wound member and the supply path is:
Relative movement to bring the supply path closer to the fifth wall surface and to move away from the fifth wall surface,
The winding device according to claim 4. A wire rod is supplied to a member to be wound along a supply path, and a substantially cylindrical insulating tube that is slidably attached to the wire rod is wound around the wall member while winding the wire around the member to be wound. It is a winding method to arrange at a desired location by an insulating tube stopper having,
a) arranging the insulating tube upstream of the supply path;
b) After the step a), the positional relationship between the wire and the insulating tube stopper is set such that the distance between at least one of the plurality of wall surfaces and the wire is the diameter of the wire and the insulation. A close state smaller than the difference with the diameter of the tube, and a step of bringing the downstream end of the insulating tube into contact with the insulating tube stopper;
c) after the step b), winding a wire around the wound member;
d) After the step c), the positional relationship between the wire and the insulating tube stopper is set to a retracted state in which at least one of the plurality of wall surfaces and the distance are larger than the diameter of the wire. And a process of
e) sending the insulating pipe together with the wire to the downstream side;
Including winding method. f) after the step e), winding a wire around the wound member ;
g) after the step f), the steps by the second moving mechanism, wherein changing the relative position of the supply path and the winding member, to bring the front Symbol wire to one of at least the plurality of walls, The winding method according to claim 7, comprising: While winding a wire around a member to be wound, a winding device that arranges a substantially cylindrical insulating tube slidably attached to the wire at a desired location,
A supply path for supplying a wire to the wound member side;
An insulating tube stopper having a notch open toward the supply path;
A moving mechanism that relatively moves the supply path and the insulating tube stopper between an approaching state in which the wire passes through the notch and a retracted state in which the wire passes outside the opening end of the notch. And having
In the approaching state, a winding device in which a width of at least a part of the notch at a position where the wire passes through the notch is smaller than an outer diameter of the insulating tube. The moving mechanism moves the insulating tube stopper;
The winding device according to claim 9. A guide for restricting a positional deviation of the wire in a direction orthogonal to the supply path;
The guide and the insulating tube stopper are arranged at adjacent positions along the supply path,
The winding device according to claim 9 or 10. Further comprising a housing arranged along the supply path on the supply source side of the wire from the guide,
The insulating tube stopper is disposed between the housing and the guide;
In the approaching state, at least a part of the insulating tube is disposed in the housing.
The winding device according to claim 11. The insulation pipe clamper further moves along the supply path while holding the insulation pipe, and arranges the insulation pipe in the housing.
Away the cut of the insulating tube stopper definitive in the retraction avoid state is located at the location deviated from the movement locus of the insulating tube clamper,
The winding device according to claim 12. The shape of the notch of the insulating tube stopper is substantially U-shaped when viewed from the upstream side or the downstream side of the supply path.
The winding device according to any one of claims 9 to 13. The insulating tube stopper has a pair of tapered surfaces at the opening end of the notch,
The distance between the pair of tapered surfaces increases toward the supply path.
The winding device according to any one of claims 9 to 14. The wire is a conductor constituting a coil of a motor,
The wound member is a plurality of divided cores that become the magnetic core of the coil;
Disposing the insulating tube between the plurality of divided cores;
The winding device according to any one of claims 9 to 15. While supplying the wire to the member to be wound along the supply path and winding the wire around the member to be wound,
A winding method for arranging a substantially cylindrical insulating tube slidably attached to the wire at a desired location,
a) arranging the insulating pipe upstream of the supply path from an insulating pipe stopper having a notch;
b) After the step a), the insulating tube stopper is brought close to the supply path so that the wire passes through the notch, and the downstream end of the insulating tube is connected to the insulating tube stopper. Contacting with
c) A winding method including, after the step b), separating the notch from the supply path and feeding the insulating tube together with the wire to the downstream side.

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