JP6480307B2 - Conductor forming equipment - Google Patents

Description

  The present invention relates to a conductor forming apparatus, and more particularly to a conductor forming apparatus that forms a bent portion in a conductor.

  Patent Document 1 discloses a wire forming apparatus. The lead wire forming device according to Patent Document 1 includes a first bent portion bent in a first bending direction on a lead wire portion (lead wire) protruding from a winding of a coil used in a stator for an electric motor, and a first bending direction. A second bent portion bent in a second bending direction perpendicular to the second bending portion is formed. Specifically, the lead wire forming apparatus approaches the first forming die and the second forming die that form the edgewise bent portion and the flatwise bent portion in the lead wire portion close to each other along the X direction, and along the X direction. And a third molding die that approaches the second molding die and forms an edgewise bent portion at the free end portion of the lead wire portion in cooperation with the second molding die. Moreover, in the conducting wire shaping | molding apparatus concerning patent document 1, the coil support part which supports a coil rotates around a rotating shaft. Thereby, the edgewise bent part on the most proximal end side is formed.

Japanese Patent Laid-Open No. 2015-1000025

  In Patent Document 1, the first molding die and the second molding die approach each other to form an edgewise bent portion and a flatwise bent portion in the lead wire portion (first operation). The third molding die approaches the second molding die and cooperates with the second molding die to form an edgewise bent portion at the free end portion of the lead wire portion (second operation). Further, when the coil support portion is rotated, an edgewise bent portion on the most proximal end side is formed (third operation). As described above, in the technique according to Patent Document 1, all the bent portions are formed on the lead wire portion by the three operations of the first operation, the second operation, and the third operation. In the case of such a configuration, the movement space of the first mold and the second mold in the first operation, the movement space of the third mold in the second operation, and the rotation space of the coil in the third operation. It is necessary to secure. Therefore, there exists a possibility that the scale of a conducting wire shaping | molding apparatus may become large. Furthermore, since the members that operate in the first operation, the second operation, and the third operation are different, the time required for the first operation, the second operation, and the third operation is changed by switching the respective operations. May be longer.

  It is an object of the present invention to provide a wire forming apparatus capable of forming all the bent portions with only one direction of rotation.

  The conducting wire forming apparatus according to the present invention includes at least one first bent portion bent in a first bending direction of the conducting wire with respect to the conducting wire, and a second bending direction substantially orthogonal to the first bending direction of the conducting wire. A wire forming apparatus for forming at least one bent second bent portion and a third bent portion in which the vicinity of the leading end of the conductive wire is bent in the second bending direction, the rotation being centered on a rotation axis A first molding surface formed of a body and having a shape corresponding to the shape of the first bent portion of the conducting wire; and in the vicinity of the circumferential end of the first molding surface. A first mold having at least one formed first edgewise bending member, and a second mold that rotates around the rotation axis, and in the circumferential direction around the rotation axis, The shape corresponding to the shape before forming the conductor was formed. A second molding surface formed with a shape that gradually changes from a position of the second wire to a second position formed with a shape corresponding to the shape of the first bent portion of the conducting wire; and a second molding surface of the second molding surface A second mold having a second edgewise bending member that is formed in the vicinity of the position 2 and presses the conducting wire in the circumferential direction around the rotation axis, and is fixed to the outside of the first mold. And a cam mechanism having a fixed cam follower and a cam member that is rotatably supported by the first mold and rotates by striking the fixed cam follower, wherein the second mold is a first around the rotation axis. And the first bent portion is formed on the conductive wire by sandwiching the conductive wire between the first molding surface and the second molding surface, thereby forming the first bent portion. From the state, the second mold is further rotated in the first direction. The second edgewise bending member presses the conductive wire against the first edgewise bending member, thereby forming the second bent portion on the conductive wire, and forming the second bent portion. When the second mold is further rotated in the first direction from the state, the first mold is rotated together with the second mold, whereby the cam member hits the fixed cam follower and the cam member Rotates to form the third bent portion in the conducting wire.

  In the wire forming apparatus according to the present invention, the first bent portion, the second bent portion, and the third bent portion are configured only as described above, and only by the rotation operation of the second mold in the first direction. All of the parts are molded. In other words, the lead wire forming apparatus according to the present invention can form all the bent portions only by rotating in one direction.

  ADVANTAGE OF THE INVENTION According to this invention, the conducting wire shaping | molding apparatus which can shape | mold all the bending parts only by rotation operation of one direction can be provided.

It is a figure which shows the coil by which the bending part was shape | molded by the lead wire part with the conducting wire shaping | molding apparatus concerning this Embodiment. It is a figure which shows the coil by which the bending part was shape | molded by the lead wire part with the conducting wire shaping | molding apparatus concerning this Embodiment. 1 is a perspective view showing a conductor forming apparatus according to a first embodiment. FIG. 3 is a perspective view showing details of a fixed mold according to the first embodiment. FIG. 2 is a perspective view showing details of a movable mold according to the first embodiment. It is a figure which shows the detail of the cam mechanism concerning Embodiment 1. FIG. It is a figure which shows the procedure in which the conducting wire shaping | molding apparatus concerning Embodiment 1 shape | molds a 1st bending part in a lead wire part. It is a figure which shows the procedure in which the conducting wire shaping | molding apparatus concerning Embodiment 1 shape | molds a 1st bending part in a lead wire part. It is a figure which shows the procedure in which the conducting wire shaping | molding apparatus concerning Embodiment 1 shape | molds a 1st bending part in a lead wire part. It is a figure which shows the procedure in which the conducting wire shaping | molding apparatus concerning Embodiment 1 shape | molds a 2nd bending part in a lead wire part. It is a figure which shows the procedure in which the conducting wire shaping | molding apparatus concerning Embodiment 1 shape | molds a 2nd bending part in a lead wire part. It is a figure which shows the procedure in which the conducting wire shaping | molding apparatus concerning Embodiment 1 shape | molds a 3rd bending part in a lead wire part. It is a perspective view which shows the conducting wire shaping | molding apparatus concerning a comparative example. It is a figure which shows the method of shape | molding a bending part in a lead wire part using the conducting wire shaping | molding apparatus concerning a comparative example. It is a perspective view which shows the conducting wire shaping | molding apparatus concerning a modification.

(Embodiment 1)
Embodiments of the present invention will be described below with reference to the drawings. Note that, in each drawing, the same element is denoted by the same reference numeral, and redundant description is omitted as necessary.

  1 and 2 are views showing a coil 10 in which a bent portion is formed on a lead wire portion by the lead wire forming apparatus according to the present embodiment. FIG. 1 shows a perspective view of the coil 10. 2A shows a view of the coil 10 shown in FIG. 1 as viewed from the direction indicated by the arrow X, and FIG. 2B shows a view of the coil 10 shown in FIG. The figure is shown.

  The coil 10 includes a coil body 11 and a lead wire portion 12. The coil body 11 is composed of windings, and is formed by winding a conductive wire a plurality of times. Here, the conducting wire is a rectangular wire having a rectangular cross section having a long side length Wf and a short side length We (Wf> We). The lead wire portion 12 is a flat wire (conductive wire) formed so as to protrude from one end of the coil body 11.

  The lead wire portion 12 includes a first flatwise bent portion 14f1, a second flatwise bent portion 14f2, and a third flatwise bent portion 14f3 from the root portion 12b toward the distal end portion 12a. In addition, the lead wire portion 12 has a first edgewise bent portion 14e1, a second edgewise bent portion 14e2, a third edgewise bent portion 14e3, and a fourth edgewise bent portion 14e4 from the root portion 12b toward the distal end portion 12a. Have In addition, the lead wire portion 12 includes a first inclined portion 13a between the first flatwise bent portion 14f1 and the second flatwise bent portion 14f2. In addition, the lead wire portion 12 has a second inclined portion 13b between the second flatwise bent portion 14f2 and the third flatwise bent portion 14f3. Further, the lead wire portion 12 has a third inclined portion 13c between the third flatwise bent portion 14f3 and the tip portion 12a.

  Note that the first flatwise bent portion 14f1, the second flatwise bent portion 14f2, and the third flatwise bent portion 14f3 are collectively referred to as a flatwise bent portion 14f. Similarly, the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, the third edgewise bent portion 14e3, and the fourth edgewise bent portion 14e4 are collectively referred to as an edgewise bent portion 14e.

  The flat-wise bent portion 14f is a bent portion (first bent portion) bent in the flat-wise direction (first bending direction: a direction substantially orthogonal to the long side of the cross section). The first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 are bent portions bent in the edgewise direction (second bending direction: a direction substantially perpendicular to the short side of the cross section). (Second bent portion). The fourth edgewise bent portion 14e4 is a bent portion (third bent portion) in which the vicinity of the distal end portion 12a of the lead wire portion 12 is bent in the edgewise direction. In the present embodiment, the edgewise direction is substantially orthogonal to the flatwise direction.

  The bending angle of the first edgewise bent portion 14e1 is about 90 degrees. That is, the lead wire portion 12 is bent about 90 degrees in the edgewise direction at the first edgewise bent portion 14e1 when viewed from the root portion 12b. The bending angle of the fourth edgewise bent portion 14e4 is about 90 degrees. That is, the lead wire portion 12 is bent about 90 degrees in the edgewise direction at the fourth edgewise bent portion 14e4 when viewed from the third edgewise bent portion 14e3. The bending angles of the other edgewise bent portions 14e and flatwise bent portions 14f are smaller than 90 degrees.

  FIG. 3 is a perspective view of the wire forming apparatus 100 according to the first embodiment. The conducting wire forming apparatus 100 forms the above-described flatwise bent portion 14f and edgewise bent portion 14e on the lead wire portion 12 protruding from the coil 10. That is, the lead wire forming apparatus 100 performs a bending process on the lead wire portion 12. The conducting wire forming apparatus 100 includes a fixing member 102 that fixes the coil 10 when bending the lead wire portion 12.

  The wire forming apparatus 100 includes a fixed mold 120 (first mold), a movable mold 140 (second mold), and a cam mechanism 160. The fixed mold 120 is fixed to the installation location of the wire forming apparatus 100. The movable mold 140 rotates in the direction indicated by the arrow R1 about the rotation shaft 110 by being driven by a driving device 112 such as a motor. Specifically, the movable mold 140 is fixed to the rotating shaft 110. The driving device 112 transmits rotational driving to the rotating shaft 110. As a result, the movable mold 140 can rotate in the direction indicated by the arrow R <b> 1 around the rotation shaft 110. In addition, although “arrow R1” is shown in a plurality of drawings, the “direction indicated by arrow R1” is the same direction in the plurality of drawings, that is, one rotation direction around the rotation axis 110.

  The fixed mold 120 has a first molding surface 122 formed of a rotating body centered on the rotating shaft 110. The movable mold 140 has a second molding surface 142. The cam mechanism 160 is provided in the vicinity of the end 122b of the first molding surface 122 of the fixed mold 120 on the downstream side in the rotational direction indicated by the arrow R1 (the destination in the rotational direction). Details will be described later.

  As will be described later, when the movable mold 140 rotates in the direction indicated by the arrow R <b> 1, the fixed mold 120 and the movable mold 140 cooperate to form the flatwise bent portion 14 f into the lead wire portion 12. Further, when the movable mold 140 further rotates in the direction indicated by the arrow R1, the fixed mold 120 and the movable mold 140 cooperate with each other, and the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third The edgewise bent portion 14e3 is formed on the lead wire portion 12. Further, when the movable mold 140 rotates in the direction indicated by the arrow R1, the fixed mold 120, the movable mold 140, and the cam mechanism 160 cooperate to form the fourth edgewise bent portion 14e4 into the lead wire portion 12. Note that the fixed die 120 is not completely fixed to the wire forming apparatus 100. As will be described later, when the fourth edgewise bent portion 14e4 is formed, the fourth edge is rotated along with the rotation of the movable die 140. It rotates a little to such an extent that the widthwise bent portion 14e4 is formed.

  FIG. 4 is a perspective view illustrating details of the fixed mold 120 according to the first embodiment. The fixed mold 120 has a first molding surface 122. As described above, the first molding surface 122 is formed of a rotating body centered on the rotating shaft 110. Specifically, the first molding surface 122 is formed of a rotating body that is a locus obtained by rotating the shape of the lead wire portion 12 formed with the flatwise bent portion 14f about the rotation shaft 110. In other words, the first molding surface 122 is formed in a shape corresponding to the shape of the lead wire portion 12 in which the flatwise bent portion 14f is molded. The first molding surface 122 is generally formed of a surface that is inclined in a direction parallel to the rotation shaft 110, that is, a flatwise direction, from a direction that is perpendicular to the rotation shaft 110, that is, a flat direction. In addition, the rotation angle of the rotating body of the first molding surface 122 is an angle equal to or greater than the bending angle (about 90 degrees) of the first edgewise bent portion 14e1.

  The first molding surface 122 includes a first flatwise bent molded portion 122f1, a second flatwise bent molded portion 122f2, and a third flatwise bent molded portion 122f3. In addition, the first molding surface 122 includes a first inclined surface 124a between the first flatwise bent molded portion 122f1 and the second flatwise bent molded portion 122f2. The first molding surface 122 has a second inclined surface 124b between the second flatwise bent molded portion 122f2 and the third flatwise bent molded portion 122f3. Further, the first molding surface 122 has a third inclined surface 124c between the third flatwise bending molding portion 122f3 and the end portion 122c in the radial direction of the rotating body (a direction away from the rotating shaft 110).

  The first inclined surface 124a is formed at an inclination angle corresponding to the inclination angle of the first inclined portion 13a. The second inclined surface 124b is formed at an inclination angle corresponding to the inclination angle of the second inclined portion 13b. The third inclined surface 124c is formed at an inclination angle corresponding to the inclination angle of the third inclined portion 13c.

  The first flatwise bent portion 122f1 is formed in a shape corresponding to the shape of the surface of the first flatwise bent portion 14f1 when viewed from the lower side of FIG. 2A (direction indicated by the arrow Y in FIG. 1). ing. The second flatwise bent portion 122f2 is formed in a shape corresponding to the shape of the surface of the second flatwise bent portion 14f2 when viewed from the lower side of FIG. 2A (direction indicated by arrow Y in FIG. 1). ing. The third flatwise bent portion 122f3 is formed in a shape corresponding to the shape of the third flatwise bent portion 14f3 as viewed from the lower side of FIG. 2A (the direction indicated by the arrow Y in FIG. 1). ing.

  As a result, the first flatwise bent forming portion 122f1 forms the first flatwise bent portion 14f1 in the lead wire portion 12 in cooperation with the movable die 140. In addition, the second flatwise bent portion 122 f 2 cooperates with the movable mold 140 to form the second flatwise bent portion 14 f 2 in the lead wire portion 12. Further, the third flatwise bent portion 122 f 3 cooperates with the movable mold 140 to form the third flatwise bent portion 14 f 3 in the lead wire portion 12. Preferably, in the fixed mold 120, the flatwise bent portion 14f is formed on the end 122a of the first forming surface 122 on the upstream side in the rotational direction indicated by the arrow R1 (on the opposite side to the destination in the rotational direction). Done in the vicinity.

  Further, the fixed mold 120 has a first protrusion 126a and a second protrusion 126b. As will be described later, the first protrusion 126a and the second protrusion 126b are first edgewise bending members that bend the lead wire portion 12 in the edgewise direction. The first protrusion 126a and the second protrusion 126b are formed in a substantially cylindrical shape. The first protrusion 126 a and the second protrusion 126 b are provided in the vicinity of the end 122 b of the first molding surface 122 in the circumferential direction (rotation direction) of the first molding surface 122. In addition, the first protrusion 126 a is provided in the vicinity of the rotation shaft 110 in the radial direction (the direction away from the rotation shaft 110). The second protrusion 126b is provided on the second inclined surface 124b in the radial direction.

  Preferably, the first protrusion 126a and the second protrusion 126b are on the same straight line extending in the radial direction from the rotation shaft 110. Preferably, the height dimension of the first protrusion 126a and the second protrusion 126b is equal to or less than the edgewise width (short side length We). The radius of the first protrusion 126a corresponds to the inner bending radius (curvature radius) of the first edgewise bent portion 14e1 of the lead wire portion 12. The radius of the second protrusion 126 b corresponds to the inner bending radius (curvature radius) of the second edgewise bent portion 14 e 2 of the lead wire portion 12. The first protrusion 126 a forms the first edgewise bent portion 14 e 1 in the lead wire portion 12 in cooperation with the movable die 140. Further, the second protrusion 126 b cooperates with the movable mold 140 to form the second edgewise bent portion 14 e 2 in the lead wire portion 12.

  FIG. 5 is a perspective view illustrating details of the movable mold 140 according to the first embodiment. FIG. 5 is a view of the movable mold 140 viewed from the second molding surface 142 side. As described above, the movable mold 140 is rotated in the direction indicated by the arrow R <b> 1 about the rotation shaft 110 by the driving device 112. The second molding surface 142 is generally formed in a substantially fan shape centered on the rotation shaft 110.

  The movable mold 140 has a second molding surface 142. The second molding surface 142 includes a first flatwise bent molded portion 142f1, a second flatwise bent molded portion 142f2, and a third flatwise bent molded portion 142f3. In addition, the second molding surface 142 includes a first inclined surface 144a between the first flatwise bent molded portion 142f1 and the second flatwise bent molded portion 142f2. The second molding surface 142 has a second inclined surface 144b between the second flatwise bent molded portion 142f2 and the third flatwise bent molded portion 142f3. Further, the second molding surface 142 has a third inclined surface 144c between the third flatwise bending molding portion 142f3 and the radial end portion 142c.

  The first inclined surface 144a is formed at an inclination angle corresponding to the inclination angle of the first inclined portion 13a. The second inclined surface 144b is formed at an inclination angle corresponding to the inclination angle of the second inclined portion 13b. The third inclined surface 144c is formed at an inclination angle corresponding to the inclination angle of the third inclined portion 13c.

  The first flatwise bent portion 142f1 corresponds to the shape of the surface of the first flatwise bent portion 14f1 when viewed from the upper side in FIG. 2A (the direction opposite to the direction indicated by the arrow Y in FIG. 1). Is formed. The second flatwise bent portion 142f2 corresponds to the shape of the surface of the second flatwise bent portion 14f2 viewed from the upper side in FIG. 2A (the direction opposite to the direction indicated by the arrow Y in FIG. 1). Is formed. The third flatwise bent portion 142f3 has a shape corresponding to the shape of the third flatwise bent portion 14f3 viewed from the upper side in FIG. 2A (the direction opposite to the direction indicated by the arrow Y in FIG. 1). Is formed.

  As a result, the first flatwise bent portion 142f1 forms the first flatwise bent portion 14f1 in the lead wire portion 12 in cooperation with the fixed mold 120. In addition, the second flatwise bent portion 142 f 2 forms the second flatwise bent portion 14 f 2 in the lead wire portion 12 in cooperation with the fixed mold 120. Further, the third flatwise bent part 142f3 cooperates with the fixed mold 120 to form the third flatwise bent part 14f3 in the lead wire part 12. Here, when forming the flatwise bent portion 14f, the movable die 140 rotates around the rotation shaft 110 in the direction indicated by the arrow R1. Therefore, when viewed from the movable mold 140, the lead wire portion 12 slides from the end portion 142a on the downstream side in the rotational direction indicated by the arrow R1 (the destination in the rotational direction) while sliding on the second molding surface 142. It moves to the direction of the end 142b on the upstream side in the rotational direction indicated by (the opposite side to the destination in the rotational direction).

  The second molding surface 142 has a gradual change region 142A and a molding region 142B. The gradually changing region 142A is a region on the end 142a side, and the molding region 142B is a region on the end 142b side. The gradual change region 142A and the molding region 142B are divided with the boundary portion 142d as a boundary.

  Here, the first flatwise bend forming portion 142f1, the second flatwise bend forming portion 142f2, the third flatwise bend forming portion 142f3, the first inclined surface 144a, the second inclined surface 144b, and the third inclined surface 144c are: It is formed in the molding region 142B. On the other hand, the gradual change region 142A is formed in a shape corresponding to the shape before forming the lead wire portion 12 (that is, a straight shape without bending) in the vicinity of the end portion 142a. On the other hand, in the gradual change region 142A, at the boundary portion 142d, as described above, a shape corresponding to the shape in which the flatwise bent portion 14f is formed on the lead wire portion 12 is formed. The gradual change region 142A has a shape that gradually changes from the end 142a to the boundary 142d in the circumferential direction around the rotation shaft 110 (the direction opposite to the direction indicated by the arrow R1). .

  That is, the end 142a formed with a shape corresponding to the shape before forming the lead wire portion 12 (conductive wire) in the circumferential direction around the rotation shaft 110 is formed on the second forming surface 142 (gradual change region 142A). Gradually changes from the vicinity (first position) to the forming region 142B (second position) where the shape corresponding to the shape of the flatwise bent portion 14f (first bent portion) of the lead wire portion 12 is formed. A shape is formed. In other words, the movable die 140 extends from the shape corresponding to the shape before forming the lead wire portion 12 to the shape corresponding to the shape of the flatwise bent portion 14f of the lead wire portion 12 in the circumferential direction around the rotation shaft 110. It has a gradually changing region 142A that gradually changes. Therefore, the gradually changing region 142A of the second molding surface 142 is formed so as to gradually rise downward in the axial direction of the rotating shaft 110 from the end 142a to the boundary 142d.

  Specifically, the gradual change region 142A includes a first flatwise bend gradually changing portion 145f1, a second flatwise bend gradually changing portion 145f2, and a third flatwise bend gradually changing portion 145f3. The gradual change region 142A has a first inclined surface gradual change portion 145a between the first flatwise bend gradual change portion 145f1 and the second flatwise bend gradual change portion 145f2. The gradually changing region 142A includes a second inclined surface gradually changing portion 145b between the second flatwise bending gradually changing portion 145f2 and the third flatwise bending gradually changing portion 145f3. The gradual change region 142A has a third inclined surface gradual change portion 145c between the third flatwise bending gradual change portion 145f3 and the end portion 142c.

  The first flatwise bending gradual change portion 145f1 is formed with a curved surface that smoothly changes from the end portion 142a to a position corresponding to the first flatwise bent forming portion 142f1 of the boundary portion 142d. The first inclined surface gradually changing portion 145a is formed as a curved surface that smoothly changes from the end portion 142a to a position corresponding to the first inclined surface 144a of the boundary portion 142d. The second flatwise bending gradual change portion 145f2 is formed with a curved surface that smoothly changes from the end portion 142a to a position corresponding to the second flatwise bent forming portion 142f2 of the boundary portion 142d. The second inclined surface gradually changing portion 145b is formed in a curved surface that smoothly changes from the end portion 142a to a position corresponding to the second inclined surface 144b of the boundary portion 142d. The third flatwise bending gradual change portion 145f3 is formed in a curved surface that smoothly changes from the end portion 142a to a position corresponding to the third flatwise bending forming portion 142f3 of the boundary portion 142d. The 3rd inclined surface gradual change part 145c is formed in the curved surface which changes smoothly from the edge part 142a to the position corresponding to the 3rd inclined surface 144c of the boundary part 142d.

  The movable mold 140 has a third protrusion 146c and a fourth protrusion 146d. As will be described later, the third protrusion 146c is a second edgewise bending member that bends the lead wire portion 12 in the edgewise direction. The third protrusion 146c and the fourth protrusion 146d are formed in a substantially cylindrical shape. The third protrusion 146c and the fourth protrusion 146d are provided in the vicinity of the end 142b of the second molding surface 142, that is, in the molding region 142B in the circumferential direction (rotation direction) of the second molding surface 142. Moreover, the 3rd protrusion 146c is provided in the vicinity of the boundary with the 3rd flatwise bending shaping | molding part 142f3 of the 2nd inclined surface 144b about radial direction. The fourth protrusion 146d is provided on the third inclined surface 144c in the radial direction.

  Preferably, the height dimension of the third protrusion 146c and the fourth protrusion 146d is a length equal to or less than the edgewise width (short side length We). The radius of the third protrusion 146c corresponds to the inner bending radius (curvature radius) of the third edgewise bent portion 14e3 of the lead wire portion 12. The radius of the fourth protrusion 146d corresponds to the inner bending radius (curvature radius) of the fourth edgewise bent portion 14e4 of the lead wire portion 12. The third protrusion 146 c forms the third edgewise bent portion 14 e 3 in the lead wire portion 12 in cooperation with the fixed mold 120. In addition, the fourth protrusion 146 d cooperates with the fixed mold 120 and the cam mechanism 160 to form the fourth edgewise bent portion 14 e 4 in the lead wire portion 12.

  The movable mold 140 has a pressing member 148 in the vicinity of the end 142b. The pressing member 148 has a flat surface 148a in the radial direction. The pressing member 148 is provided at a position near the rotating shaft 110 in the vicinity of the end 142b. A space for forming the second edgewise bent portion 14e2 is provided between the pressing member 148 and the third protrusion 146c. As will be described later, the pressing member 148 maintains a flat shape in the edgewise direction between the first edgewise bent portion 14e1 and the second edgewise bent portion 14e2. Further, at least a part of the third protrusion 146c is closer to the end 142a in the circumferential direction than the surface 148a of the pressing member 148.

  FIG. 6 is a diagram illustrating details of the cam mechanism 160 according to the first embodiment. The cam mechanism 160 is provided in the vicinity of the end 122 c in the vicinity of the end 122 b of the fixed mold 120. The cam mechanism 160 includes a fixed cam follower 162 and a cam member 164. The fixed cam follower 162 is fixed to the outside of the fixed mold 120 of the wire forming apparatus 100. The cam member 164 is rotatably supported by a rotating shaft 164a provided in the fixed mold 120. The cam member 164 has a leading end bending surface 164 b that bends the vicinity of the leading end portion 12 a of the lead wire portion 12. When the fixed mold 120 is slightly rotated in the direction indicated by the arrow R1 as the movable mold 140 rotates, the cam member 164 abuts against the fixed cam follower 162. Thereby, the cam member 164 rotates around the rotation shaft 164a. Details will be described later.

Next, a procedure for forming the flatwise bent portion 14f and the edgewise bent portion 14e in the lead wire portion 12 by the lead wire forming device 100 will be described with reference to FIGS.
7-9 is a figure which shows the procedure in which the conducting wire shaping | molding apparatus 100 concerning Embodiment 1 shape | molds the flatwise bending part 14f (1st bending part) in the lead wire part 12. FIG. FIGS. 10 and 11 show that the lead wire forming apparatus 100 according to the first embodiment is configured such that the lead wire portion 12 has a first edgewise bent portion 14e1, a second edgewise bent portion 14e2, and a third edgewise bent portion 14e3 (second bent portion). It is a figure which shows the procedure which shape | molds a part. FIG. 12 is a diagram illustrating a procedure of forming the fourth edgewise bent portion 14e4 (third bent portion) in the lead wire portion 12 by the wire forming apparatus 100 according to the first embodiment.

  Here, in the present embodiment, first, the wire forming apparatus 100 forms a flatwise bent portion 14f (first bent portion) in the lead wire portion 12, as shown in FIGS. Next, as shown in FIGS. 10 and 11, the wire forming apparatus 100 continues to the lead wire portion 12 with the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 ( 2nd bending part) is shape | molded. Finally, the wire forming apparatus 100 continues to form the fourth edgewise bent portion 14e4 (third bent portion) in the lead wire portion 12, as shown in FIG.

  FIG. 7 is a perspective view showing a procedure in which the wire forming apparatus 100 forms the flatwise bent portion 14 f on the lead wire portion 12. FIG. 8 is a cross-sectional view showing a procedure in which the wire forming apparatus 100 forms the flatwise bent portion 14 f in the lead wire portion 12. FIG. 9 is a view showing a state in which the lead wire forming device 100 forms a flatwise bent portion 14 f on the lead wire portion 12. Here, FIG. 8A is a cross-sectional view taken along the line A-A ′ of FIG. FIG. 8B is a cross-sectional view taken along the line B-B ′ of FIG. FIG. 8C is a cross-sectional view taken along the line C-C ′ of FIG. FIG. 8D is a cross-sectional view taken along line D-D ′ of FIG. FIG. 9A is a perspective view showing a state in which the lead wire forming device 100 forms a flatwise bent portion 14f on the lead wire portion 12, and FIG. 9B is an E-line in FIG. 9A. It is E 'line sectional drawing.

  First, as shown in FIGS. 7A and 8A, the coil 10 is fixed to the wire forming apparatus 100 (fixing member 102). In this state, the lead wire portion 12 has a substantially linear shape. In this state, the circumferential position of the lead wire portion 12 in the fixed mold 120 is a position corresponding to the vicinity of the end portion 122a. In the molding process of the flatwise bent portion 14f, the circumferential position of the fixed portion 120 of the lead wire portion 12 does not move. Further, the position of the lead wire portion 12 in the circumferential direction of the movable mold 140 is a position corresponding to the vicinity of the end portion 142a.

  Next, as shown in FIG. 7B, the movable mold 140 rotates in the direction indicated by the arrow R1. At this time, the movable mold 140 rotates while the gradual change region 142 </ b> A is in contact with the lead wire portion 12. Therefore, since the lead wire portion 12 is pressed by the gradual change region 142A, as shown in FIG. 8B, the lead wire portion 12 is bent slightly in the flatwise direction. Specifically, the first flatwise bending gradual change portion 145f1 of the gradual change region 142A contacts the lead wire portion 12. The lead wire portion 12 is sandwiched between the first flatwise bend gradually changing portion 145f1 and the first flatwise bend forming portion 122f1. As a result, the first flatwise bent portion 14f1 starts to be formed on the lead wire portion 12.

  Next, as shown in FIG. 7C, the movable mold 140 further rotates in the direction indicated by the arrow R1. At this time, similarly, the movable mold 140 rotates while the gradual change region 142 </ b> A is in contact with the lead wire portion 12. Therefore, since the lead wire portion 12 is pressed by the gradual change region 142A, as shown in FIG. 8C, the lead wire portion 12 is further bent in the flatwise direction from the state shown in FIG. 8B. Specifically, the second flatwise bending gradual change portion 145f2 of the gradual change region 142A contacts the lead wire portion 12. The lead wire portion 12 is sandwiched between the second flatwise bend gradually changing portion 145f2 and the second flatwise bend forming portion 122f2. As a result, the second flatwise bent portion 14f2 starts to be formed in the lead wire portion 12.

  At this time, the movable die 140 rotates while the lead wire portion 12 is sandwiched between the first flatwise bend gradually changing portion 145f1 and the first flatwise bend forming portion 122f1. That is, while the movable die 140 rotates from the state of FIG. 7B to the state of FIG. 7C, the lead wire portion 12 includes the first flatwise bending gradually changing portion 145f1 and the first flatwise bending forming portion 122f1. In contact with.

  Next, as shown in FIG. 7D, the movable mold 140 further rotates in the direction indicated by the arrow R1. At this time, similarly, the movable mold 140 rotates while the gradual change region 142 </ b> A is in contact with the lead wire portion 12. Accordingly, since the lead wire portion 12 is pressed by the gradual change region 142A, as shown in FIG. 8D, the lead wire portion 12 is further bent in the flatwise direction from the state shown in FIG. 8C. Specifically, the third flatwise bending gradual change portion 145f3 of the gradual change region 142A contacts the lead wire portion 12. The lead wire portion 12 is sandwiched between the third flatwise bend gradually changing portion 145f3 and the second flatwise bend forming portion 122f2. As a result, the third flatwise bent portion 14f3 starts to be formed in the lead wire portion 12.

  At this time, in the movable die 140, the lead wire portion 12 is located between the first flatwise bending gradually changing portion 145f1 and the first flatwise bending gradually changing portion 122f1, and the second flatwise bending gradually changing portion 145f2 and the second flat. It rotates while being pinched between the widthwise bending portion 122f2. That is, while the movable die 140 rotates from the state of FIG. 7C to the state of FIG. 7D, the lead wire portion 12 includes the first flatwise bending gradually changing portion 145f1 and the first flatwise bending forming portion 122f1. And the second flatwise bend gradually changing portion 145f2 and the second flatwise bend forming portion 122f2.

  When the movable mold 140 further rotates in the direction indicated by the arrow R1, the movable mold 140 rotates until the molding region 142B is opposed to the lead wire portion 12, as shown in FIG. As a result, the flatwise bent portion 14 f is formed on the lead wire portion 12. In this state, as shown in FIG. 9B, the lead wire portion 12 is sandwiched between the first flatwise bent molded portion 122f1 and the first flatwise bent molded portion 142f1, so that the lead wire portion 12, the first flatwise bent portion 14f1 is formed. Similarly, the lead wire portion 12 is sandwiched between the second flatwise bend forming portion 122f2 and the second flatwise bend forming portion 142f2, thereby forming the second flatwise bent portion 14f2 on the lead wire portion 12. The Further, the lead wire portion 12 is sandwiched between the third flatwise bend forming portion 122f3 and the third flatwise bend forming portion 142f3, whereby the third flatwise bent portion 14f3 is formed in the lead wire portion 12. . In this manner, as shown in FIGS. 7 to 9, the flatwise bent portion 14 f is formed on the lead wire portion 12 by the rotating operation of the movable mold 140.

  Next, a method of forming the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 (second bent portion) on the lead wire portion 12 with reference to FIGS. Will be described. FIG. 10 is a perspective view showing a state in which the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 (second bent portion) are formed on the lead wire portion 12. FIG. FIG. 11 is a front view showing a state in which the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 (second bent portion) are formed on the lead wire portion 12. is there. For the sake of explanation, only some of the components of the movable mold 140 are shown in FIG.

  When the movable die 140 further rotates in the direction indicated by the arrow R1 from the state shown in FIG. 9A, the third protrusion 146c comes into contact with the lead wire portion 12. When the movable mold 140 further rotates in the direction indicated by the arrow R1 from this state, the third protrusion 146c presses the lead wire portion 12 in the direction indicated by the arrow R1. Accordingly, as shown in FIG. 10, the movable die 140 rotates in the direction indicated by the arrow R1, so that the lead wire portion 12 is bent around the first protrusion 126a. That is, the lead wire portion 12 is bent by being pressed against the first protrusion 126a by the third protrusion 146c. Therefore, the first edgewise bent portion 14e1 having a shape corresponding to the shape of the first protrusion 126a is formed on the lead wire portion 12. Note that the rotation angle of the movable mold 140 at this time is an angle corresponding to the bending angle (about 90 degrees) of the first edgewise bent portion 14e1.

  Further, when the movable mold 140 rotates in the direction indicated by the arrow R1 and the third protrusion 146c presses the lead wire portion 12, the lead wire portion 12 is pressed by the second protrusion 126b. Accordingly, as shown in FIGS. 10 and 11, the lead wire portion 12 is formed with the second edgewise bent portion 14e2 having a shape corresponding to the shape of the second protrusion 126b, and corresponds to the shape of the third protrusion 146c. A third edgewise bent portion 14e3 having a shape is formed. At this time, as shown in FIG. 11, the pressing member 148 presses between the first edgewise bent portion 14 e 1 and the second edgewise bent portion 14 e 2 of the lead wire portion 12. As a result, the flat shape in the edgewise direction between the first edgewise bent portion 14e1 and the second edgewise bent portion 14e2 is maintained. In this manner, the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 are connected to the lead wire portion 12 after the flatwise bent portion 14f is formed by the rotating operation of the movable die 140. To be molded.

  Next, a method of forming the fourth edgewise bent portion 14e4 on the lead wire portion 12 by the lead wire forming device 100 will be described with reference to FIG. For the sake of explanation, only some of the components of the movable mold 140 are shown in FIG.

  When the movable mold 140 further rotates in the direction indicated by the arrow R1 from the state shown in FIG. 11, the third protrusion 146c (and the pressing member 148) presses the lead wire portion 12 in the direction indicated by the arrow R1. Thereby, the lead wire portion 12 presses the second protrusion 126b. Therefore, torque in the direction indicated by the arrow R1 is applied to the rotating shaft of the fixed mold 120. When the movable mold 140 tries to further rotate in the direction indicated by the arrow R1 and a certain torque or more is applied to the fixed mold, the fixed mold 120 slightly rotates in the direction indicated by the arrow R1. That is, the fixed mold 120 rotates as the movable mold 140 rotates.

  At this time, as shown in FIG. 12A, the cam member 164 hits the fixed cam follower 162, and accordingly, the cam member 164 rotates in the direction indicated by the arrow R2. Due to the rotation of the cam member 164, the vicinity of the distal end portion 12a of the lead wire portion 12 is pressed by the distal end bending surface 164b of the cam member 164 and bent around the fourth protrusion 146d. When the movable mold 140 further rotates in the direction indicated by the arrow R1, the fixed mold 120 also rotates, so that the cam member 164 further rotates in the direction indicated by the arrow R2. Then, as shown in FIG. 12B, a fourth edgewise bent portion 14e4 having a shape corresponding to the shape of the fourth protrusion 146d is formed in the vicinity of the distal end portion 12a of the lead wire portion 12. In this manner, the fourth edgewise bent portion 14e4 is formed on the lead wire portion 12 by the rotating operation of the movable mold 140.

  As described above, the wire forming apparatus 100 according to the first embodiment is configured so that the movable die 140 rotates in the direction indicated by the arrow R1 (first direction) as shown in FIGS. The portion 14f (first bent portion) is formed in the lead wire portion 12. Subsequently, as shown in FIGS. 10 and 11, the movable mold 140 further rotates in the direction indicated by the arrow R1 (first direction), so that the wire forming apparatus 100 has the first edgewise bent portion 14e1, The 2 edgewise bent portion 14 e 2 and the third edgewise bent portion 14 e 3 (second bent portion) are formed on the lead wire portion 12. Then, subsequently, as shown in FIG. 12, the movable mold 140 further rotates in the direction indicated by the arrow R1 (first direction), so that the wire forming apparatus 100 causes the fourth edgewise bent portion 14e4 (third bent) Part) is formed into the lead wire part 12. That is, the lead wire forming apparatus 100 according to the first embodiment can form all the bent portions by rotating the movable die 140 only in one direction (the direction indicated by the arrow R1). The details will be described below.

  A shape corresponding to the shape of the flatwise bent portion 14 f is provided on the first molding surface 122 of the fixed mold 120 so as to incline in the flatwise direction, that is, the direction parallel to the rotation shaft 110. On the other hand, the second molding surface 142 of the movable mold 140 is downward in the axial direction of the rotating shaft 110, that is, in the flatwise direction from the end 142a to the boundary 142d in the “direction indicated by the arrow R1”, that is, the rotational direction of the movable mold 140. In addition, a gradually changing region 142A formed so as to gradually rise is provided. With such a configuration, when the movable mold 140 rotates in the “direction indicated by the arrow R1”, that is, the edgewise direction, the lead wire portion 12 is gradually bent in the flatwise direction as the movable mold 140 rotates. The lead wire portion 12 is sandwiched between the movable die 140 and the fixed die 120, whereby the flatwise bent portion 14f can be formed into the lead wire portion 12.

  The “direction indicated by the arrow R1”, that is, the rotational direction of the movable mold 140 corresponds to the edgewise direction. Further, the fixed mold 120 and the movable mold 140 have protrusions (first protrusion 126a, second protrusion) for forming the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3. 126b and a third protrusion 146c) are provided. Therefore, when the movable die 140 rotates in the edgewise direction from the state in which the flatwise bent portion 14f is formed, the lead wire portion 12 is bent in the edgewise direction by the protrusion. Accordingly, the first edgewise bent portion 14e1, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 can be formed on the lead wire portion 12.

  As described above, the first molding surface 122 of the fixed mold 120 is a rotating body that is a locus obtained by rotating the shape of the lead wire portion 12 formed with the flatwise bent portion 14f about the rotation shaft 110. Is formed. Therefore, as shown in FIG. 10, when the movable mold 140 rotates in the direction indicated by the arrow R1, that is, the edgewise direction, the lead wire portion 12 in which the flatwise bent portion 14f is formed is pressed against the fixed mold 120 in the flatwise direction. However, the lead wire portion 12 can be rotated in the edgewise direction (the direction indicated by the arrow R1) to form the first edgewise bent portion 14e1 in the lead wire portion 12. As a result, it is possible to continuously mold the second bent portion from the state where the first bent portion has been formed without any interruption in the rotation operation of the movable mold 140 in only one direction (the direction indicated by the arrow R1). Become.

  Further, the fourth edgewise bent portion 14e4, which is a bend in the vicinity of the distal end portion 12a of the lead wire portion 12, is also performed by rotating the movable mold 140 by using the cam mechanism 160 as described above. Can do. Therefore, it is possible to continue to form the third bent portion from the state where the second bent portion is formed, without the operation being interrupted by the rotating operation of the movable mold 140 in only one direction (the direction indicated by the arrow R1). .

(Comparative example)
FIG. 13 is a perspective view showing a conductor forming apparatus 900 according to a comparative example. The lead wire forming apparatus 900 includes a support member 902 that supports the coil 10, a first forming die 920 that is a fixed die, a second forming die 940 that is a movable die, and a third forming die 960 that is a movable die. . The first molding die 920 has a first molding surface 922 for molding the flatwise bent portion 14f, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 into the lead wire portion 12. The second molding die 940 has a second molding surface 942 for molding the flatwise bent portion 14f, the second edgewise bent portion 14e2, and the third edgewise bent portion 14e3 into the lead wire portion 12. The third mold 960 molds the fourth edgewise bent portion 14e4.

  FIG. 14 is a diagram illustrating a method of forming a bent portion in the lead wire portion 12 using the lead wire forming apparatus 900 according to the comparative example. First, as shown to (a), the 2nd shaping | molding die 940 moves to the direction shown by arrow A (1st operation | movement). As a result, the lead wire portion 12 is sandwiched between the first molding surface 922 and the second molding surface 942. Therefore, the lead wire portion 12 is formed with a flatwise bent portion 14f, a second edgewise bent portion 14e2, and a third edgewise bent portion 14e3.

  Next, as shown in (b), the third mold 960 moves in the direction indicated by the arrow B (second operation). Thus, the fourth edgewise bent portion 14e4 is formed in the vicinity of the tip portion 12a of the lead wire portion 12. Next, as shown in (c), the support member 902 rotates in the direction indicated by the arrow C (third operation). Thereby, the lead wire portion 12 bends in the vicinity of the root portion 12b. Therefore, the first edgewise bent portion 14 e 1 is formed in the lead wire portion 12.

  In the lead wire forming apparatus 900 according to the comparative example, the second forming die 940 moves in the direction indicated by the arrow A and the third forming die 960 is indicated by the arrow B in order to form all the bent portions into the lead wire portion 12. The support member 902 needs to rotate in the direction indicated by the arrow C. In such a configuration, the moving space of the second mold 940 in the first operation, the moving space of the third mold 960 in the second operation, and the rotation space of the support member 902 and the coil in the third operation. It is necessary to ensure. Therefore, there is a possibility that the scale of the wire forming apparatus 900 will be large. Furthermore, since the members that operate in the first operation, the second operation, and the third operation are different from each other, the time required for the first operation, the second operation, and the third operation is increased due to the switching of the operations. There is a risk.

  On the other hand, in the above-described embodiment, all the bent portions can be formed only by rotating the movable mold 140 in one direction. Therefore, since only the rotational space of the movable mold 140 needs to be secured, an increase in the scale of the wire forming apparatus 100 can be suppressed as compared with the comparative example. In the above-described embodiment, only the movable mold 140 operates when the bent portion is formed. Note that the fixed mold 120 and the cam mechanism 160 slightly operate when the third bent portion is formed, but these operations are only linked to the operation of the movable mold 140. Therefore, since it is not necessary to switch the operation, the time required for forming the bent portion can be reduced.

(Modification)
Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in the above-described embodiment, the wire forming apparatus 100 forms a bent portion in the lead wire portion 12 protruding from the coil 10, but the configuration is not limited thereto. The present embodiment can also be applied to conductive wires other than the lead wire portion 12. This will be described below.

  FIG. 15 is a perspective view showing a conductor forming apparatus 200 according to a modification. The conducting wire forming apparatus 200 manufactures a segment coil by forming a bent portion in a single flat wire 20. The segment coil has a symmetrical shape. The wire forming apparatus 200 includes a fixed mold 220, a movable mold 240, a cam mechanism 260L, and a cam mechanism 260R.

  The fixed mold 220 corresponds to the fixed mold 120 according to the first embodiment. The fixed mold 220 is formed in a symmetrical shape as a whole. Fixed mold 220 has a first molding surface 222L formed on the left side and a first molding surface 222R formed on the right side. The shape of the first molding surface 222L is substantially the same as the first molding surface 122 according to the first embodiment. Further, the first molding surface 222R is formed in a shape symmetrical to the first molding surface 222L.

  The movable mold 240 corresponds to the movable mold 140 according to the first embodiment, and rotates around the rotation shaft 210 by the drive of the drive device 212. The movable mold 240 is formed in a symmetrical shape as a whole. The movable mold 240 has a second molding surface 242L formed on the left side and a second molding surface 242R formed on the right side. The shape of the second molding surface 242L is substantially the same as the second molding surface 142 according to the first embodiment. In addition, the second molding surface 242R is formed in a shape symmetrical to the second molding surface 242L.

  The cam mechanism 260L has substantially the same configuration as the cam mechanism 160 according to the first embodiment. The cam mechanism 260L is provided in the vicinity of the end portion of the first molding surface 222L. The cam mechanism 260R has substantially the same configuration as the cam mechanism 160 according to the first embodiment, but is configured to be bilaterally symmetrical to the cam mechanism 260L. The cam mechanism 260R is provided in the vicinity of the end portion of the first molding surface 222R.

  When forming a bent portion in the flat wire 20, first, the flat wire 20 is clamped to the fixed mold 220. Then, the movable mold 240 rotates counterclockwise in the direction indicated by the arrow R3 and rotates clockwise in the direction indicated by the arrow R4. Thereby, the segment coil by which the bending part was shape | molded left-right symmetrically is manufactured. As described above, the wire forming apparatus according to the present embodiment can also be applied to manufacture a segment coil formed symmetrically from a single flat wire 20.

  In the above-described embodiment, the conductive wire to be molded has a rectangular (rectangular) cross section such as a rectangular wire, but is not limited to such a configuration. The conducting wire to be molded may have a square, circular or elliptical cross section. In these cases, the first bending direction corresponding to the flatwise direction is a direction perpendicular to one side, one diameter, or the major axis of the cross section (square) of the conducting wire. On the other hand, the second bending direction corresponding to the edgewise direction is a direction orthogonal to the other side orthogonal to the one side of the cross section (square) of the conducting wire, another diameter orthogonal to the one diameter, or a minor axis. .

DESCRIPTION OF SYMBOLS 10 ... Coil, 12 ... Lead wire part, 12a ... Tip part, 12b ... Root part, 13a ... 1st inclination part, 13b ... 2nd inclination part, 13c ... 3rd inclined part, 14e1 ... 1st edgewise bent part, 14e2 ... 2nd edgewise bent part, 14e3 ... 3rd edgewise bent part, 14e4 ... 4th edgewise bent part, 14f1 ... 1st flatwise bent part, 14f2 ... 2nd flatwise bent part, 14f3 ... 3rd flatwise bent part, 100 ... Conducting wire forming apparatus, 102 ... Fixing member, 110 ... Rotating shaft 120 ... fixed mold 122 ... first molding surface 122a, 122b, 122c ... end, 122f1 ... first flatwise bending molding part, 122f2 ... second flat Wise bending part 122f3: third flatwise bend forming part, 124a: first inclined surface, 124b: second inclined surface, 124c: third inclined surface, 126a: first protrusion, 126b,. Second projection 140, movable mold, 142 second molding surface, 142a, 142b, 142c, end, 142A, gradual change area, 142B, molding area, 142f1. -1st flatwise bending molding part, 142f2 ... 2nd flatwise bending molding part, 142f3 ... 3rd flatwise bending molding part, 144a ... 1st inclined surface, 144b ... 2nd inclined surface , 144c... Third inclined surface, 145a... First inclined surface gradually changing portion, 145b... Second inclined surface gradually changing portion, 145c... Third inclined surface gradually changing portion, 145f1. 1st flatwise bending gradual change part, 1 5f2: second flatwise bending gradual change portion, 145f3 ... third flatwise bending gradual change portion, 146c ... third protrusion, 146d ... fourth protrusion, 160 ... cam mechanism, 162 ... Fixed cam followers, 164 ... Cam members

Claims (1)

At least one first bent portion bent in the first bending direction of the conductive wire with respect to the conductive wire, and at least one second bent portion bent in the second bending direction substantially orthogonal to the first bending direction in the conductive wire. A wire forming apparatus for forming a portion and a third bent portion in which the vicinity of the tip of the wire is bent in the second bending direction,
A first molding surface formed by a rotating body centered on a rotation axis, the first molding surface having a shape corresponding to the shape of the first bent portion of the conductor, and a circumference of the first molding surface A first mold having at least one first edgewise bending member formed near an end in the direction;
A second molding die that rotates about the rotation axis, wherein the lead wire is formed from a first position where a shape corresponding to the shape before forming the conductor wire is formed in a circumferential direction about the rotation axis. In the vicinity of the second molding surface formed with a shape that gradually changes to the second position where the shape corresponding to the shape of the first bent portion is formed, and the second position of the second molding surface A second mold having a second edgewise bending member that is formed and presses the conducting wire in a circumferential direction around the rotation axis;
A cam mechanism having a fixed cam follower fixed to the outside of the first mold, and a cam member that is rotatably supported by the first mold and rotates by striking the fixed cam follower;
The second mold is rotated in a first direction around the rotation axis, and the conductive wire is sandwiched between the first molded surface and the second molded surface, whereby the first conductive wire is sandwiched by the first conductive surface. Molding the bend,
The second mold further rotates in the first direction from the state where the first bent portion is molded, and the second edgewise bending member presses the conductor against the first edgewise bending member. By doing so, the second bent portion is formed on the conducting wire,
When the second mold is further rotated in the first direction from the state where the second bent portion is molded, the first mold is rotated together with the second mold, whereby the cam member is A conductor forming apparatus that forms the third bent portion on the conductor by abutting against a fixed cam follower and rotating the cam member.

Images