JP3633911B2 - Multi-pole armature winding method and winding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a winding method and a winding device for a multipole armature that constitutes a stator, a rotor, and the like of a generator and an electric motor.
[0002]
[Prior art]
Conventionally, as this type of winding device, as disclosed in, for example, Japanese Patent No. 2624825 and Japanese Patent Laid-Open No. 10-257724, a flyer that rotates around the core and feeds a wire rod, and is fed from this flyer. Some have a former that guides the wire to the core and winds the wire around the core.
[0003]
[Problems to be solved by the invention]
However, in such a conventional multi-pole armature winding device, since the former is disposed outside the core, the former cannot be guided until the wire abuts against the teeth. There has been a problem that the position accuracy of the winding cannot be increased.
[0004]
Moreover, since the core is a structure formed by laminating a large number of iron plates, there is a possibility that slight variations in the thickness occur. When the rotation center axis of the flyer is shifted from the core due to such dimensional variations, there is a problem that the winding accuracy is deteriorated.
[0005]
Further, conventionally, there has been one provided with a rotation transmission mechanism composed of a belt and a pulley so that the former does not rotate with the flyer. In this case, there is a problem that the space for interposing the rotation transmission mechanism becomes large and the layout of the apparatus is difficult. Furthermore, there is a problem that it is difficult to move the flyer independently in the axial direction.
[0006]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a winding method and a winding device for a multipole armature suitable for a structure in which a wire is wound via a flyer.
[0007]
[Means for Solving the Problems]
1st invention is applied to the winding method of the multi-pole armature which winds a wire with respect to the core which each slot opens between each teeth which protrude radially toward the radial direction outer side .
[0008]
A center former that is arranged outside the slot and guides the wire to the teeth, and a pair of auxiliary that guides the wire that is provided inside the slot and sandwiches the teeth and guided through the center former until it abuts the teeth. The former and an auxiliary former opening / closing mechanism that moves the auxiliary former so as to approach the teeth to be wound as it enters the slot, and the pair of the center former moves inward in the radial direction of the core. Auxiliary formers enter the slots while approaching each other and wind the wire around the teeth.
[0009]
The second invention is applied to a winding apparatus for a multi-pole armature in which a wire is wound around a core having an open slot between teeth projecting radially outward .
[0010]
A center former that is arranged outside the slot and guides the wire to the teeth; and an auxiliary former that is provided inside the slot and sandwiches the teeth and guides the wire guided through the center former until it abuts the teeth. An auxiliary former opening / closing mechanism that moves the pair of auxiliary formers so as to approach the teeth to be wound as the pair of auxiliary formers enters the slot, and the pair of auxiliary formers moves inwardly in the radial direction of the core. The auxiliary former is configured to enter the slot while approaching each other and wind the wire around the teeth.
[0012]
According to a third aspect , in the second aspect , the auxiliary former opening / closing mechanism includes an opening / closing cam that abuts against the tip of the tooth and moves relative to the center former as the center former moves, and guides the auxiliary former using the opening / closing cam. It was supposed to be a feature.
[0013]
The fourth invention includes a flyer that rotates around the core and feeds the wire, and a former mechanism that guides the wire fed from the flyer to the core . The core is placed on a work support, and the wire is placed on the core. Applicable to winding equipment for winding multi-pole armature.
[0014]
And a work pressing member that presses and fixes the core onto the work support,
A workpiece pressing position detecting means for detecting the position of the workpiece pressing member in a state where the workpiece pressing member is pressed against the core is provided.
[0015]
A fifth invention includes a flyer that rotates around a core and feeds a wire, and a former mechanism that guides the wire fed from the flyer to the core, and winding a multipolar armature that winds the wire around the core. Applies to line equipment.
[0016]
A hollow spindle that supports and supports the flyer; a former support member that passes through the inside of the spindle and supports the former mechanism; and a planetary gear mechanism that transmits the rotation of the spindle to the former support member. The planetary gear rotates with the rotation so that the former support member is stationary . This planetary gear mechanism is provided on the spindle and the end of the former support member apart from the flyer and the former mechanism. A mechanism for moving in the direction of the rotation axis of the spindle is provided .
[0017]
Operation and effect of the invention
According to the first and second aspects of the invention, even when a force that pulls the wire wound around the teeth to the outside in the radial direction of the core is acting, the auxiliary former enters the inside of the slot (the space between the teeth). By guiding the wire rod guided through the center former until it comes into contact with the teeth, the positional accuracy in which the wire rod is wound is improved, and the quality of the multipole armature is improved.
[0018]
As the auxiliary former enters the slot , the auxiliary former moves closer to the teeth to be wound, so that the auxiliary former can enter the back of the slot without interfering with adjacent teeth and its windings. it can.
[0019]
According to the third invention, the opening / closing cam is pushed by the tip of the teeth along with the movement of the center former to guide the auxiliary former, so that it is not necessary to provide an actuator for moving the auxiliary former, and the structure can be simplified.
[0020]
According to the fourth aspect of the invention, since the dimensional variation of the core is detected by the operation of fixing the core on the work support base via the work pressing member, the winding accuracy is lowered by adjusting the position of the winding mechanism. This avoids this and improves the quality of the stator. Moreover, it becomes possible to cope with a change in the dimensions of the core, and various cores can be produced efficiently.
[0021]
According to the fifth invention, even if the spindle rotates, the planetary gear mechanism does not rotate the former support member, and the former mechanism can be made stationary. Since the planetary gear mechanism is provided on the end side of the spindle and the former support member away from the flyer and the former mechanism, there is no need to provide an interposing space around the spindle as in the conventional structure using a belt or the like. The layout becomes easier. Furthermore, it becomes easy to move the flyer independently in the axial direction.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0023]
FIG. 1 is a side view showing a configuration of a winding device according to an embodiment of the present invention, and FIG. The winding device 1 according to the present embodiment automatically winds a wire W around a core 10.
[0024]
The annular core 10 constitutes, for example, a stator (multipole armature) provided in an outer rotor type motor, and a plurality of teeth 10a project radially outward in the radial direction, and each slot is formed between the teeth 10a. 10b is open.
[0025]
Here, three axes X, Y, and Z orthogonal to each other are set, the X axis extends in a substantially horizontal front-rear direction, the Y axis extends in a substantially horizontal lateral direction, and the Z axis extends in a substantially vertical direction. The configuration will be described.
[0026]
The winding device 1 includes an index mechanism 11 that rotates the core 10 around the center axis (Z axis) relative to the gantry 2, a flyer 5 that feeds the wire W, and the flyer 5 that rotates relative to the core 10. And a winding mechanism 20 that winds the wire W around the teeth 10a.
[0027]
The index mechanism 11 includes a work support 12 that is supported so as to be rotatable about the Z axis with respect to the gantry 2, and an index motor 13 that rotationally drives the work support 12.
[0028]
As shown in FIG. 3, a work pressing mechanism 7 that presses and fixes the core 10 onto the work support 12 is provided. The workpiece pressing mechanism 7 includes a workpiece pressing member 15 disposed above the core 10, a lifting frame 16 and a guide frame 30 that support the workpiece pressing member 15 so as to be movable up and down in the Z-axis direction with respect to the gantry 2. A pair of air cylinders 14 for moving the lifting frame 16 up and down is provided. The core 10 is pressed and fixed on the work support 12 via the work pressing member 15, and rotates on the same axis as the work support 12.
[0029]
A hook 3 is provided on the side of the work pressing member 15. Before winding the wire W around the teeth 10a, the wire W is locked to the hook 3. When the wire W has been wound around the teeth 10a, the tip of the hook 3 is rotated downward by the air cylinder 4, so that the wire W locked to the hook 3 is removed.
[0030]
The winding device 1 includes a workpiece pressing position detection unit that detects the position of the workpiece pressing member 15 in a state in which the workpiece pressing member 15 is pressed against the core 10, and a rotation center axis of the flyer 5 according to the detected value. And a controller 90 that automatically adjusts the relative position of the winding mechanism 20 with respect to the workpiece support 12 so as to intersect the center of the workpiece 10.
[0031]
As a workpiece pressing position detecting means, a lifting bar 16 that moves up and down in conjunction with the workpiece pressing member 15 via an air cylinder 14, a detection rod 17 that comes into contact with the lower surface of the lifting bar 16 and descends together with the workpiece pressing member 15, A return cylinder 19 that urges the detection rod 17 to contact the lower surface of the lift bar 16 and a displacement sensor (magnet scale) 18 that measures the displacement L of the detection rod 17 are provided.
[0032]
As a mechanism for adjusting the relative position of the winding mechanism 20 with respect to the workpiece support base 12, a head 6 on which the winding mechanism 20 is mounted, a head support base 31 and a guide rail 38 that support the head 6 so as to be movable up and down, and the head 6 is provided with a head lifting / lowering motor 32 that lifts and lowers 6 via a ball screw 33. The controller 90 controls the operation of the head lifting / lowering motor 32 according to the detection signal of the displacement sensor 18 and moves the head 6 up and down, so that the rotation center axis of the flyer 5 is shifted due to the dimensional variation of the core 10. Eliminate.
[0033]
A plurality of springs 34 are provided between the gantry 2 and the head support 31. The head support base 31 is pulled up by the urging force of each spring 34, and the load of the head lifting motor 32 is reduced to save labor.
[0034]
As a mechanism for moving the winding mechanism 20 in the X-axis direction, a guide rail 35 that supports the head 6 movably in the X-axis direction with respect to the head support base 31, and the head support base 31 is driven via a ball screw 36. A head moving motor 37. As a result, the winding mechanism 20 is advanced and retracted relative to the core 10.
[0035]
As a mechanism for rotating the flyer 5, the winding mechanism 20 includes a spindle 21 that rotates around the X axis together with the flyer 5, and a spindle motor 25 that rotationally drives the spindle 21 via pulleys 22 and 23 and a belt 24. Prepare. The spindle 21 is rotatably supported with respect to the head 6 via a bearing 26.
[0036]
As a mechanism for moving the flyer 5 in the X-axis direction, a slider 27 that supports the flyer 5 so as to be movable in the X-axis direction and a cylinder 28 that moves the slider 27 in the X-axis direction are provided. The annular slider 27 is slidably supported on the spindle 21 via a spline 29. Thereby, the flyer 5 is reciprocated with respect to the tooth 10a, and the wire rod W is locked to the hook 3 when the flyer 5 is rotated at the forward movement position.
[0037]
A former mechanism 40 for guiding the wire W to the teeth 10 a is provided between the spindle 21 and the core 10. A former support member 51 that supports the former mechanism 40 is provided inside the hollow structure spindle 21. The former support member 51 is rotatably supported by the spindle 21 via a bearing 49.
[0038]
A planetary gear mechanism 48 that stops the former support member 51 with the rotation of the spindle 21 is provided, and the former mechanism 40 is stopped.
[0039]
As shown in FIG. 4, the planetary gear mechanism 48 includes a ring gear 47 that is fixed to the head 6, and a gear (planetary gear) 46 that is rotatably supported by a pulley 23 that rotates the spindle 21 via a support shaft 41. A gear (planetary gear) 45 that meshes with the gear 46, a gear (planetary gear) 44 that is coaxially coupled to the gear 45 via the support shaft 42, and a gear that supports the gear 44 and is fixed to the former support member 51. The gear 43 is provided. The support shafts 41 and 42 are maintained in a positional relationship in which the gears 43 to 47 are engaged via a support member (not shown).
[0040]
As a result, the rotation of the spindle 21 causes the gear 46 to rotate around the spindle 21 while meshing with the ring gear 47. Therefore, the gear 45 meshing with this and the gear 44 coupled via the support shaft 42 also rotate while rotating the spindle 21. Rotate around. As a result, even if the spindle 21 rotates with respect to the head 6, the gear 43 remains stopped, the former support member 51 fixed to the gear 43 does not rotate, and the former mechanism 40 stops.
[0041]
The planetary gear mechanism 48 is provided on the end side of the spindle 21 and the former support member 51 which are separated from the flyer 5 and the former mechanism 40, so that an interposing space is provided around the spindle 21 as in the conventional structure using a belt or the like. It is not necessary to provide it, and the layout of the apparatus becomes easy. Furthermore, since a structure for moving the flyer 5 in the axial direction with respect to the spindle 21 is provided, unlike the conventional example, the former mechanism 40 does not move integrally when the flyer 5 is moved, and only the flyer 5 is moved. Can do. As a result, when the wire W from the flyer 5 is locked to the hook 3, the former mechanism 40 does not get in the way and the hook 3 can be easily locked.
[0042]
A camshaft 54 penetrating the inside of the former support member 51 having a hollow structure is provided. A wire W supplied from a wire supply source (not shown) is guided to the flyer 5 through the inside of the hollow portion of the camshaft 54.
[0043]
A side former 9, a center former 50, and an auxiliary former 70 are provided as a former mechanism 40 for guiding the wire W to the teeth 10a. As a result, the wire W is wound around the tooth 10a with high accuracy.
[0044]
The pair of side formers 9 are provided so as to cover the teeth 10a on both sides of the tooth 10a to be wound, and are fixed via a support member 8 so that the position can be adjusted. These side formers 9 incline in a direction away from the teeth 10a as they move away from the teeth 10a to be wound, and have a shape having a curved surface that tapers toward the tip of the teeth 10a. The wire W drawn out from is guided so as not to be caught by the teeth 10a on both sides of the teeth 10a to be wound.
[0045]
As shown in FIGS. 5 and 6, the pair of center formers 50 are provided outside the slot 10b so as to sandwich the teeth 10a from above and below so that the wire W fed from the flyer 5 is directed to a predetermined position of the teeth 10a. To guide.
[0046]
The center former 50 has a width substantially equal to the width of the teeth 10a at the tip, an inclined surface 50a that is inclined so as to be separated from the teeth 10a toward the radially outer side of the core 10, and an end surface 50b that extends in the Z-axis direction. The wire rod W is slid on the inclined surface 50a and the end surface 50b to smoothly guide the wire rod W to the teeth 10a.
[0047]
As a center former opening / closing mechanism 59 for opening / closing the center former 50 according to the number of winding layers of the teeth 10a, guide rails 52 that support the center former 50 so as to be movable in the Z-axis direction with respect to the former support member 51, A spring 53 that pulls the center former 50 toward each other, a cam shaft 54 that separates the center former 50 against the spring 53, and a center former moving motor 56 that drives the cam shaft 54 via a ball screw 55 are provided. The camshaft 54 is slidably supported inside the former support member 51 via a slide bush 57.
[0048]
A tapered portion 54 a is formed at the tip of the camshaft 54, and when the center former moving motor 56 is driven to move the camshaft 54 toward the center former 50, the tapered portion 54 a is interposed between the center formers 50. Inserted. As a result, the center former 50 moves away from each other against the biasing force of the spring 53. Conversely, when the camshaft 54 is moved in the direction opposite to the center former 50, the center former 50 moves in a direction approaching each other by the urging force of the spring 53. The controller 90 controls the operation of the center former moving motor 56, and when the winding of one wire W around the teeth 10a is completed, the center former 50 is separated from the teeth 10a by the thickness of the one wire of the core teeth 10a. To.
[0049]
The two pairs of auxiliary formers 70 are provided inside the slots 10b (spaces sandwiched between the teeth 10a) so as to sandwich the teeth 10a, and guide the wire W guided through the center former 50 until it abuts against the teeth 10a. The winding position accuracy of the wire W is increased.
[0050]
Each auxiliary former 70 is disposed between each center former 50. The wedge-shaped auxiliary former 70 has an inclined surface 70a that inclines away from the teeth 10a toward the outer side in the radial direction of the core 10, and has a tip portion 70b that extends without a step from the end surface 50b of the center former 50. The wire rod W is slid on the tip portion 70b to guide the wire rod W until it comes into contact with the teeth 10a.
[0051]
The auxiliary former opening / closing mechanism 73 that opens and closes each auxiliary former 70 includes an opening / closing cam 71 that moves in contact with the tip of the teeth 10a and a spring 72 that draws each auxiliary former 70 toward the teeth 10a. As 70 enters the slot 10b, it follows the movement of the opening and closing cam 71 and approaches the teeth 10a.
[0052]
The pair of opening / closing cams 71 are interposed between the auxiliary formers 70 and are connected to each other via pins 74. Each open / close cam 71 is urged by a compression spring 75 so as to be pushed toward the teeth 10a. As the center former 50 is superposed on the teeth 10a and moves inward in the radial direction of the core 10, the opening / closing cam 71 is pushed against the tip of the teeth 10a to be wound, so that the auxiliary former against the compression spring 75 is pressed. It moves relative to 70.
[0053]
The opening / closing cam 71 is formed in a trapezoidal plate shape, and the auxiliary former 70 is formed with an inclined surface 70c for slidingly contacting the opening / closing cam 71. Thereby, the auxiliary former 70 opens and closes following the movement of the opening and closing cam 71.
[0054]
The center former 50 is formed with a step portion 70d extending in the y-axis direction, and the auxiliary former 70 is guided to move in the y-axis direction by slidingly contacting the step portion 70d.
[0055]
As shown in FIGS. 7A and 7B, the auxiliary former 70 is opened against the spring 72 in a state where the opening / closing cam 71 is biased by the compression spring 75 and is on the distal end side. As a result, the auxiliary former 70 can enter the slot 10b without interfering with the brim portion 10c spreading at the tip of the tooth 10a to be wound.
[0056]
As shown in FIGS. 7A and 7B, the auxiliary former 70 is closed by the spring 72 in a state where the opening / closing cam 71 is pushed by the tip of the tooth 10 a and moved to the back side. As a result, the auxiliary former 70 can enter the back of the slot 10b without interfering with the adjacent teeth 10a and the windings thereof.
[0057]
As described above, the opening / closing cam 71 is pushed by the tip of the teeth 10a as the center former 50 moves to guide the auxiliary former 70, thereby eliminating the need to provide an actuator or the like for moving the auxiliary former 70, thereby simplifying the structure. Peeled off.
[0058]
Next, the winding operation of the winding device 1 will be described.
[0059]
First, the core 10 is placed on the work support 12 and the work pressing member 15 is lowered and fixed between the work support 12 and the work pressing member 15.
[0060]
At this time, the displacement sensor 18 measures the displacement L of the detection rod 17 that moves down together with the workpiece pressing member 15. The controller 90 controls the operation of the head lifting / lowering motor 32 according to the detection signal of the displacement sensor 18, and moves the head 6 up and down, whereby the rotation center axis of the flyer 5 is arranged with respect to the center position of the core 10. As a result, it is possible to avoid a decrease in winding accuracy due to dimensional variations in the laminated thickness of the core 10, and to improve the quality of the stator. In addition, it is possible to automatically cope with a change in the size of the core 10 and the like, and various cores 10 can be produced efficiently.
[0061]
Subsequently, the work support 12 is rotated, and the teeth 10 a to be wound are arranged on the rotation center axis of the flyer 5. Thereby, each slot 10b located in the both sides of the teeth 10a to be wound is disposed between the formers 70.
[0062]
Subsequently, the spindle 21 is advanced toward the core 10, and the flyer 5, the center former 50, and the auxiliary former 70 are moved to predetermined positions.
[0063]
Subsequently, after the cylinder 28 is driven to advance the flyer 5, the spindle 21 is rotated halfway, and the wire W fed from the flyer 5 is locked to the hook 3. Next, the cylinder 28 is driven again to retract the flyer 5 and return it to the winding position.
[0064]
When the wire rod W fed out from the flyer 5 is wound around the teeth 10a, the side former 9 guides the wire rod W so as not to be caught by the teeth 10a. Then, the center former 50 slides the wire W on the inclined surface 50a and the end surface 50b to smoothly guide the wire W to the teeth 10a. Subsequently, the auxiliary former 70 slides the wire W on the tip portion 70b and guides the wire W until it comes into contact with the teeth 10a.
[0065]
In this manner, the wire W wound around the teeth 10a has a tensile force acting on the radially outer side of the core 10 via the side former 9, but the auxiliary former 70 guides the wire W until it abuts against the teeth 10a. The positional accuracy in which the wire W is wound around the teeth 10a can be improved, and the quality of the stator can be improved.
[0066]
As the spindle 21 rotates once, the head 6 moves in the x-axis direction by one pitch of the wire W, and the wire W is wound in alignment with the teeth 10a.
[0067]
When the first-layer winding is completed, the center former 50 is moved in the direction away from the teeth 10a by the wire diameter of the wire W to perform the second-layer winding.
[0068]
When the winding of one tooth 10a is completed, the hook 3 is moved downward to remove the locked wire W, the center former 50 is moved backward, the work support 12 is rotated, and the tooth 10a to be wound is wound. Change.
[0069]
When the winding for one phase is completed, the flyer 5 is similarly advanced, the spindle 21 is rotated halfway, the wire W is locked to the hook 3, and then the flyer 5 is returned to the winding position to wind the other phase. A line is made.
[0070]
When the winding of all the teeth 10a is completed, the workpiece pressing member 15 is raised, and the core 10 is removed from the workpiece support base 12.
[0071]
The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.
[Brief description of the drawings]
FIG. 1 is a side view of a winding device showing an embodiment of the present invention.
FIG. 2 is a perspective view of the same.
FIG. 3 is a front view of the same.
FIG. 4 is a perspective view of the planetary gear mechanism and the like.
FIG. 5 is a cross-sectional view of the former mechanism.
FIG. 6 is a perspective view of the former mechanism.
7A is a front view showing an operating state of the former mechanism, and FIG. 7B is a sectional view of the former mechanism.
8A is a front view showing the operating state of the former mechanism, and FIG. 8B is a cross-sectional view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Winding device 5 Flyer 10 Core 12 Work support stand 15 Work pressing member 18 Displacement sensor (Work pressing position detection means)
20 Winding mechanism 40 Former mechanism 48 Planetary gear mechanism 50 Center former 51 Former support member 70 Auxiliary former 71 Opening / closing cam 73 Auxiliary former opening / closing mechanism

Claims (5)

In a winding method of a multi-pole armature in which a wire is wound around a core having an open slot between teeth projecting radially outwardly, the wire is disposed on the outside of the slot and used as a tooth. A center former for guiding, a pair of auxiliary formers that are provided so as to enter the inside of the slot and sandwich the teeth and guide the wire rod guided through the center former until they abut against the teeth, and the auxiliary former enters the slot. And an auxiliary former opening / closing mechanism that moves so as to approach the teeth to be wound, and the pair of auxiliary formers enter the slot while approaching each other as the center former moves inward in the radial direction of the core. A winding method for a multipole armature, wherein a wire is wound around a tooth. In a winding apparatus for a multi-pole armature in which a wire is wound around a core having an opening between each tooth radially projecting radially outward, the wire is disposed on the outside of the slot and used as a tooth. A center former to be guided, an auxiliary former that is provided so as to enter the inside of the slot and sandwich the teeth and guides the wire guided through the center former until it abuts against the teeth, and this pair of auxiliary formers enter the slot. And an auxiliary former opening / closing mechanism that moves so as to approach the teeth to be wound, and as the center former moves inward in the radial direction of the core, the pair of auxiliary formers enter the slot while approaching each other. A winding device for a multi-pole armature, wherein a wire is wound around a tooth. The auxiliary former closing mechanism, abuts on the tip of the tooth with the movement of the center former comprising a closing cam relative displacement, according to claim 2, characterized by guiding the auxiliary former by the cams Multipole armature winding device. A multi-pole electric machine that includes a flyer that rotates around the core and feeds the wire, and a former mechanism that guides the wire fed from the flyer to the core, places the core on a work support, and winds the wire around the core In the child winding device, a work pressing member that presses and fixes the core onto the work support base, and a work pressing position detection unit that detects the position of the work pressing member in a state where the work pressing member is pressed against the core. A winding device for a multipole armature characterized by the above. A multi-pole armature winding device that includes a fryer that rotates around a core and feeds a wire, and a former mechanism that guides the wire fed from the flyer to the core. A hollow spindle that rotates in a supported manner, a former support member that passes through the inside of the spindle and supports the former mechanism, and a planetary gear mechanism that transmits the rotation of the spindle to the former support member. The former support member is made stationary by rotating the gear , and this planetary gear mechanism is provided on the spindle and the end side of the former support member apart from the flyer and the former mechanism. A multi-pole armature winding device comprising a mechanism that moves in a direction .

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