CN112740520A - Winding nozzle and winding machine - Google Patents
Winding nozzle and winding machine Download PDFInfo
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- CN112740520A CN112740520A CN201880096969.XA CN201880096969A CN112740520A CN 112740520 A CN112740520 A CN 112740520A CN 201880096969 A CN201880096969 A CN 201880096969A CN 112740520 A CN112740520 A CN 112740520A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
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Abstract
The invention aims to provide a winding nozzle and a winding machine, which can improve the space factor of coil winding in a stator of a motor and the like and improve the manufacturing efficiency. The winding nozzle of the present invention is a winding nozzle that winds a winding around an iron core to form a coil, wherein the winding is drawn out from the winding nozzle, and the winding nozzle moves around the iron core to wind the winding around the iron core. The winding nozzle is provided with: a fixed side end surface which is an end surface mounted on one side of a nozzle holding part of a winding machine; a front end face, an end face of a side of which the winding wire is pulled out; a winding wire passage portion formed from the fixed side end surface to the distal end surface so as to pass a winding wire; and a front end groove portion which communicates with the winding wire passing portion and is formed in a groove shape on a front end surface.
Description
Technical Field
The present invention relates to a winding nozzle for manufacturing a coil and a winding machine, and more particularly, to a shape of a nozzle for drawing out a winding.
Background
Conventionally, a coil used for a stator of a motor or the like is manufactured by drawing out a winding through a nozzle attached to a biaxial linear motion mechanism and winding the winding around an iron core constituting the stator of the motor or the like. The winding machine for winding the winding wire on the iron core is composed of a double-shaft direct-acting mechanism provided with a wire nozzle, a pulley part, a tensioning part and a coil bracket. The winding machine moves the tip of the nozzle around the iron core, and winds a coil around the iron core to form a coil.
The nozzle is disposed such that the direction in which the wire passes through the hollow shape inside is parallel to the central axis of the coil. The hollow shape of the nozzle through which the wire passes is provided with an R shape at the tip. When wound around the core, the winding is bent in a direction in which the core is disposed along the R-shape of the hollow tip portion. That is, the wire is wound around the core while being bent in the lateral direction with respect to the direction in which the hollow shape in the nozzle extends (see, for example, patent document 1).
In addition, a winding machine is known in which a nozzle is configured to be rotatable in a certain plane like a swinging member. In this case, the nozzle is rotated in accordance with the direction in which the wire is pulled out to change the angle (see, for example, patent document 2). With this configuration, the winding machine can suppress variation in tension applied to the winding due to a change in the direction in which the winding is pulled out during winding, and can form the coil straight in the direction in which the winding is wound.
Patent document 1: japanese laid-open patent application No. 2004-328844
Patent document 2: japanese laid-open patent application No. 2001 and 118740
However, in the winding machine disclosed in patent document 1, the winding is bent along the R shape of the tip end of the nozzle and wound around the core constituting the stator, and thus the winding is warped. The winding machine winds the winding wire on the winding surface of the core while applying tension to the winding wire through the tension part. Therefore, the winding has a warp in the central axis direction of the coil, that is, in the direction in which the windings are stacked in the coil. Therefore, the coil has a problem that a gap is easily generated between adjacent windings, and the space factor of the windings wound around the core is reduced.
In the case of the winding machine disclosed in patent document 2, no warpage occurs in the direction of the laminated windings as in the case of winding the coils by the winding machine disclosed in patent document 1. However, due to the rigidity of the wound wire, the coil expands in the outer circumferential direction of the wound wire. This reduces the occupancy of the coil winding around the core. Further, in the case of using the nozzle as disclosed in patent document 2, since it is necessary to correspond the cores and the nozzles one to one, in a stator of a motor or the like in which a plurality of cores are continuously connected, it is not possible to wind coils around the plurality of cores at the same time, and there is a problem that manufacturing efficiency is low.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a winding nozzle and a winding machine capable of improving the space factor of the winding of a coil in a stator or the like of a motor and improving the efficiency of coil manufacturing.
A winding nozzle according to the present invention is a winding machine that winds a winding around an iron core to form a coil, the winding being drawn out from the winding nozzle, and the winding nozzle moving around the iron core to wind the winding around the iron core, the winding nozzle including: a fixed side end surface which is an end surface mounted on one side of a nozzle holding portion of the winding machine; a front end surface which is an end surface of a side from which the winding wire is pulled out; a winding wire passage portion formed from the fixing side end surface to the distal end surface so as to pass the winding wire; and a leading end groove portion which communicates with the winding wire passage portion and is formed in a groove shape in the leading end surface.
The winding machine of the present invention includes: at least one of the winding nozzles; a nozzle holding portion that holds the winding nozzle; and a horizontal movement mechanism that moves the nozzle holding portion in a horizontal direction.
According to the present invention, the gap between the windings wound around the core can be filled, and thus the winding space factor of the coil wound around the core is improved. Further, since the winding nozzle is controlled to move in the horizontal direction to wind the winding around the core, a plurality of winding nozzles can be provided in the winding machine and operated simultaneously, and the manufacturing efficiency of the winding machine for manufacturing the coil can be improved.
Drawings
Fig. 1 is a schematic view showing the entire configuration of a winding machine according to embodiment 1.
Fig. 2 is a plan view showing an example of the structure of a stator of the motor.
Fig. 3 is a side view of the stator of the motor of fig. 2.
Fig. 4 is an explanatory diagram showing the operation of the winding nozzle when the coil is formed on the core by the winding machine according to embodiment 1.
Fig. 5 is a perspective view of a winding nozzle of the winding machine according to embodiment 1.
Fig. 6 is a front view and a side view of a winding nozzle of the winding machine according to embodiment 1.
Fig. 7 is a sectional view of a winding nozzle of the winding machine according to embodiment 1.
Fig. 8 is an explanatory diagram showing a state where a winding wire is passed through a winding nozzle of the winding machine according to embodiment 1.
Fig. 9 is an explanatory diagram illustrating a state in which a winding wire is passed through a winding nozzle of the winding machine according to embodiment 1.
Fig. 10 is a schematic view of a state in which a winding is wound around teeth of an iron core in the winding machine according to embodiment 1.
Fig. 11 is an explanatory diagram of a cross-sectional structure of the core 1 in which a coil is formed by the winding machine according to embodiment 1.
Fig. 12 is an explanatory diagram of a cross-sectional structure of a winding nozzle 150 as a comparative example of the winding nozzle of the winding machine according to embodiment 1.
Fig. 13 is a side view of a coil wound around a core using a winding nozzle of a comparative example.
Fig. 14 is a front view and a side view of a winding nozzle of the winding machine according to embodiment 2.
Fig. 15 is a sectional view of a winding nozzle of the winding machine according to embodiment 2.
Detailed Description
Fig. 1 is a schematic view showing the entire configuration of a winding machine 100 of embodiment 1. Fig. 2 is a plan view showing an example of the structure of the stator 10 of the motor. Fig. 3 is a side view of the stator 10 of the motor of fig. 2. The winding machine 100 is, for example, a device for forming the coil 2 constituting the stator 10 of the motor. The coil 2 is formed by winding a wire 3 around the teeth 1a of the core 1 constituting the stator 10. In fig. 1, the core 1 is schematically illustrated, and is not limited to this shape. As shown in fig. 2, for example, 12 cores 1 are arranged in a ring shape to form a stator 10. Each iron core 1 includes an insulating portion 4. The insulating portion 4 is formed integrally with the core 1, or is formed by attaching the molded insulating portion to the core 1. The insulating portion 4 is used for fixing a lap wiring connecting the coils 2 and for arranging a terminal.
In a state where a plurality of cores 1 are connected, the stator 10 is wound with a winding machine 100 around the slot surface 1b of each core 1 to form a coil 2. After the coils 2 are formed on the slot surfaces 1b of the respective cores 1, the respective cores 1 are formed into a ring shape, and the cores 1 at the end portions of the plurality of connected cores 1 are joined to each other by welding or the like, thereby forming the stator 10 shown in fig. 2 and 3.
The stator 10 is incorporated in, for example, a motor (not shown), and a rotor (not shown) is disposed in a cylindrical portion formed on the inner circumferential side of each of the cores 1 arranged in an annular shape. The motor supplies electric power to the coil 2 from a wire connected to the stator 10, and rotationally drives the rotor by a magnetic field generated by the coil 2 and the core 1.
As shown in fig. 1, the winding machine 100 includes: a nozzle holding portion 61 to which the nozzle 50 is attached, a horizontal moving mechanism 60 that moves the nozzle holding portion 61 in the horizontal direction, a pulley 62 that guides the winding wire 3, a tension portion 63 that adjusts the tension of the winding wire 3, and a coil holder 64 that holds the winding wire 3.
The coil 3 is pulled out from the coil holder 64, passes through the tension portion 63, is guided by the pulley 62, and passes through the nozzle holding portion 61. The wire 3 having passed through the tip holding portion 61 passes through the winding tip 50 held by the tip holding portion 61, and is drawn out from the tip end portion of the winding tip 50. The front end of the winding 3 is fixed to the core 1 and wound around the slot surface 1b of the tooth 1 a. The winding machine 100 further includes a control device 80 for controlling at least the horizontal movement mechanism 60, the tension 63, and the winding nozzle 50 to rotate.
Fig. 4 is an explanatory diagram illustrating an operation of the winding nozzle 50 when the coil 2 is formed on the core 1 by the winding machine 100 according to embodiment 1. In embodiment 1, the coil 2 is wound in a state where the stator 10 is developed such that the cores 1 of the stator 10 are arranged in a straight line. In embodiment 1, the winding 3 is wound around the teeth 1a of the first to third cores 1 from the right at the same time. The winding nozzle 50 is disposed such that a direction in which the winding wire 3 passes, that is, a longitudinal direction of the winding nozzle 50 is orthogonal to a surface on which the stator 10 is developed. The winding nozzle 50 moves along the trajectory t shown in fig. 4. That is, the winding nozzle 50 moves around the teeth 1a so as to draw a substantially rectangular shape, and the winding wire 3 is wound around the teeth 1 a. The winding tip 50 is configured to be rotatable about a center axis of the winding tip 50. The trajectory t shown in fig. 4 is an example, and may move around the teeth 1a so as to draw another shape. The rotation direction r may be opposite to the rotation direction r.
Fig. 5 is a perspective view of the winding nozzle 50 of the winding machine 100 according to embodiment 1. Fig. 6 is a front view and a side view of the winding nozzle 50 of the winding machine 100 according to embodiment 1. Fig. 7 is a sectional view of the winding nozzle 50 of the winding machine 100 according to embodiment 1. Fig. 7 shows a cross section of the portion a-a of fig. 6. The winding machine 100 passes the winding wire 3 from one end surface to the other end surface of the winding nozzle 50, and moves the winding nozzle 50 around the teeth 1a of the core 1, thereby winding the winding wire 3 drawn out from the tip surface 56 of the winding nozzle 50 around the teeth 1 a. In embodiment 1, the winding nozzle 50 is formed in a shape in which a groove is provided on the outer peripheral surface of a cylindrical shape. However, the shape of the winding nozzle 50 is not limited to the cylindrical shape, and any other shape may be adopted as long as the winding wire 3 passes through from one end face to the other end face. In embodiment 1, one end surface is a fixing side end surface 55, and the other end surface is a leading end surface 56.
The winding nozzle 50 is provided with a winding wire passing portion 51 along the center axis of the cylindrical shape. The winding wire passage portion 51 is formed in a groove shape on the outer peripheral surface of the cylindrical winding tip 50, and extends from a fixed-side end surface 55 located on the tip holding portion 61 side to a tip end surface 56 located on the tip end portion side from which the winding wire 3 is pulled out.
The winding nozzle 50 has a front end groove 52 formed in a front end surface 56. The distal end groove portion 52 is a groove formed in the distal end surface 56. Both ends of the leading end groove portion 52 in the extending direction are opened at the bobbin tip side surface 50a located between the fixing side end surface 55 and the leading end surface 56, that is, at the body side surface of the bobbin tip 50.
The winding nozzle side surface 50a is provided with a flat surface 54 in the vicinity of the fixing side end surface 55. The flat surface 54 is a rotation stopper for preventing the winding nozzle 50 from being displaced in the rotation direction r around the center axis of the winding nozzle 50 when the winding nozzle 50 is fixed to the nozzle holding portion 61.
The winding passage portion 51 and the tip groove portion 52 communicate with each other. That is, the winding passing portion 51 is connected to the tip end groove portion 52 to form a passage for one winding 3. A first intersection 57, which is a portion where the inner wall surface 51a of the winding passing portion 51 and the inner wall surface 52a of the distal end groove portion 52 intersect, is provided with a curved surface, and the inner wall surface 51a and the inner wall surface 52a are connected so that the inner wall surface 51a and the inner wall surface 52a are continuous surfaces. In embodiment 1, the first intersecting portion 57 has an arc shape in cross section, but may have another curved shape, and is preferably formed of a smooth curve so as not to be cut when the winding wire 3 is in contact.
The leading end groove portion 52 opens to the winding mouth side surface 50a at both ends in the direction in which the groove shape extends. The second intersection 58, which is the intersection of the inner wall surface 52a of the distal end groove portion 52 and the nozzle side surface 50a, is formed with a curved surface such that the inner wall surface 52a and the nozzle side surface 50a are continuous surfaces. That is, all the ridge lines formed by the intersection of the inner wall surface 52a and the winding nozzle side surface 50a are formed by curved surfaces. In embodiment 1, the second intersecting portion 58 has an arc shape in cross section, but may have another curved shape, and is preferably formed of a smooth curve so as not to be cut when the winding wire 3 is in contact.
As shown in fig. 7, the third intersection portion 59 where the inner wall surface 51a of the winding wire passage portion 51 intersects with the fixing-side end surface 55 is also formed of a curved surface so that the inner wall surface 51a and the fixing-side end surface 55 are continuous surfaces. The third intersection portion 59 is also arc-shaped in cross section, but may be in other curved shapes, and is preferably formed of a smooth curve so as not to be cut when the winding 3 is in contact.
Fig. 8 and 9 are explanatory views showing a state where the coil 3 passes through the winding nozzle 50 of the winding machine 100 according to embodiment 1. Fig. 10 is a schematic view of a state in which a winding wire 3 is wound around a tooth 1a of an iron core 1 in a winding machine 100 according to embodiment 1. As shown in fig. 8, the winding nozzle 50 includes: a groove-shaped winding passing portion 51 extending from the fixing side end surface 55 to the distal end surface 56, and a distal end groove portion 52 formed in the distal end surface 56 in a groove shape. The winding wire 3 passes through the respective parts of the winding machine 100, enters the winding wire passage portion 51 from the fixing side end surface 55 of the winding tip 50, and reaches the leading end groove portion 52 along the winding wire passage portion 51.
The winding wire 3 reaching the tip end groove portion 52 is bent toward the side surface 50a of the winding nozzle along the curved surface of the first intersection 57, which is a portion where the winding wire passing portion 51 of the winding nozzle 50 intersects with the tip end groove portion 52. Then, as shown in fig. 9, the wire 3 bent toward the winding nozzle side surface 50a extends along the leading end groove portion 52, and is pulled out in a direction intersecting the longitudinal direction of the winding nozzle 50.
As shown in fig. 10, the winding nozzle 50 surrounds the teeth 1a and winds the winding wire 3 around the slot surface 1 b. The extending direction of the leading end groove portion 52 is oriented at an angle θ with respect to the winding wire drawn portion 30, which is a portion of the winding wire 3 located between the winding portion 33 wound around the slot surface 1b and the leading end groove portion 52. Therefore, the wire 3 is bent along the second intersection 58 at the portion pulled out from the leading end groove portion 52.
The wire 3 is pulled out while being pressed against the curved surface of the second intersecting portion 58 at the portion pulled out from the front end groove portion 52 of the winding nozzle 50. Thus, the winding wire 3 is warped in the direction perpendicular to the slot surface 1b of the tooth 1a by the curved surface of the second intersection portion 58. That is, the winding wire pullout portion 30 is warped so as to protrude toward the slot surface 1 b. The winding nozzle 50 rotates around the teeth 1a while keeping the angle θ between the tip end groove portion 52 and the winding wire drawing portion 30 constant. That is, the winding nozzle 50 is controlled by the control device to change the horizontal direction position and to make the angle θ of the turning angle constant. Therefore, the wire 3 is wound while being always subjected to a force so as to warp in a direction perpendicular to the slot surface 1b while being wound around the teeth 1 a.
Fig. 11 is an explanatory diagram of a cross-sectional structure of the core 1 after the coil 2 is formed by the winding machine 100 of embodiment 1. The cross section shown in fig. 11 shows a cross section of one of the iron cores 1 of the stator 10 in a plane parallel to the drawing shown in fig. 2. As described above, in the coil 2 formed by winding the wire 3, the wound wire 3 is warped in a bow shape, and the apex of the bow shape is directed toward the slot surface 1 b. Since the winding 3 is along the direction perpendicular to the slot surface 1b, the gap w between the slot surface 1b and the first layer of the coil 2 is reduced, and further, the gap between the second layer and the subsequent layers is reduced, so that the winding is performed in the direction in which the coil 2 is wound. Further, since the winding 3 forming the coil 2 is warped so as to protrude toward the slot surface 1b, the coil 2 can be suppressed from bulging due to the rigidity of the winding 3.
Fig. 12 is an explanatory diagram of a cross-sectional structure of a winding nozzle 150 as a comparative example of the winding nozzle 50 of the winding machine 100 according to embodiment 1. The winding nozzle 150 can be mounted in place of the winding nozzle 50 of the winding machine 100 shown in fig. 1. The fixing side end surface 155 of the winding nozzle 150 is fixed to the nozzle holding portion 61, and the winding wire 3 is pulled out from the front end surface 156. A cylindrical winding wire passage portion 151 penetrating from the fixing side end surface 155 to the tip end surface 156 is formed inside the winding nozzle 150. A first intersection 157 between the inner wall of the winding passage portion 151 and the distal end surface 156 and a third intersection 159 between the inner wall of the winding passage portion 151 and the fixing side end surface 155 are continuously connected to each other by a curved surface.
The winding nozzle 150 moves in the same manner as the winding nozzle 50 of embodiment 1, and winds the winding wire 3 around the slot surface 1b of the core 1. At this time, the wire 3 drawn out from the distal end surface 156 of the winding nozzle 150 is drawn out while being pressed by the first intersection 157. Thus, the winding wire drawing portion 130 of the winding wire 3 warps so as to project in the right direction of fig. 12.
Fig. 13 is a side view of coil 102 wound around core 1 using winding nozzle 150 of a comparative example. Fig. 13 is a side view of one core 1 of the stator 10, as viewed in the direction of arrow a in fig. 4. When the winding wire 3 is wound around the core 1 by the winding nozzle 150, the warp direction of the winding wire 3 becomes arcuate in a direction parallel to the slot surface 1 b. Therefore, as shown in fig. 13, the windings 3 are warped in the direction parallel to the slot surface 1b, and therefore, a gap between the windings 3 is likely to be generated in the direction parallel to the slot surface 1 b. Further, the winding 3 is not warped in the direction perpendicular to the slot surface 1b, and the coil 102 is likely to bulge due to the rigidity of the winding 3.
On the other hand, according to the winding nozzle 50 of embodiment 1, the winding wire 3 is not warped in the direction parallel to the slot surface 1b unlike the case of using the winding nozzle 150 of the comparative example, and therefore the winding wire 3 is wound in a straight state in the direction parallel to the slot surface 1 b. And thus the gap between the windings 3 can be reduced. Therefore, the coil 2 can have more windings 3 arranged in the direction parallel to the slot surface 1 b. As described above, according to the winding nozzle 50 of embodiment 1, the winding wire 3 is warped in the direction perpendicular to the slot surface 1b, and therefore the winding wire 3 is easily wound up, and the coil 2 can be prevented from bulging due to the rigidity of the winding wire 3. Therefore, the coil 2 can have more windings 3 arranged in the direction perpendicular to the slot surface 1 b. Since the coil 2 can have a large number of windings 3 in the direction perpendicular to the slot surface 1b and in the direction parallel thereto, the space factor of the windings 3 can be increased compared to the coil 102 wound by the nozzle 150 of the comparative example. That is, the layers of the winding 3 constituting the coil 2 are filled in the direction of the arrow P, Q shown in fig. 11, and the density of the winding 3 increases. This enables the coil 2 to generate a stronger magnetic field when a predetermined current flows, thereby improving the performance of the motor and the like.
The winding nozzle 250 of the winding machine 200 of embodiment 2 is a shape of the winding passage portion 51 that is changed from the winding nozzle 50 of the winding machine 100 of embodiment 1. The winding machine 200 according to embodiment 2 will be described mainly with respect to modifications of embodiment 1. In each drawing, the same reference numerals as those used in the description of embodiment 1 are given to parts of the winding machine 200 according to embodiment 2, the parts having the same functions.
Fig. 14 is a front view and a side view of a winding nozzle 250 of the winding machine 200 according to embodiment 2. Fig. 15 is a sectional view of a winding nozzle 250 of the winding machine 200 of embodiment 2. Fig. 15 shows a cross section of the B-B portion of fig. 14. The winding tip 250 is a winding tip used in the winding machine 200 shown in fig. 1, and is fixed to the tip holding portion 61 in the same manner as the winding tip 50 of embodiment 1. In the winding nozzle 50 according to embodiment 1, the winding wire passage portion 51 is formed in a groove shape, but the winding wire passage portion 251 of the winding nozzle 250 is formed of a hole penetrating from the fixing side end surface 55 to the tip end surface 56.
The winding nozzle 250 includes a tip groove portion 252 on the tip surface 56. The leading end groove portion 252 is a groove that communicates with the winding wire passage portion 251 and opens to the winding tip side surface 50a, similarly to the winding tip 50 of embodiment 1.
In the winding machine 200 according to embodiment 2, the winding nozzle 250 is also operated in the same manner as the winding machine 100 according to embodiment 1, and the coil 2 is formed on the core 1. In the winding nozzle 250, similarly to the winding nozzle 50 of embodiment 1, the winding 3 is wound while being warped in the direction perpendicular to the slot surface 1b of the core 1, and therefore, the layers of the winding 3 constituting the coil 2 are filled with the filling, and the density of the winding 3 can be increased, thereby increasing the space factor of the winding 3.
In addition, since the winding wire passage portion 251 of the winding tip 250 according to embodiment 2 is formed of a through hole, the passing winding wire 3 does not come off from the winding wire passage portion 251. Therefore, during the operation of the winding machine 200, the winding 3 can be prevented from being detached from the winding nozzle 250 and stopped.
Description of the reference numerals
1 … iron core; 1a … teeth; 1b … slot face; 2 … coil; 3 … winding; 4 … an insulating part; 10 … stator; 30 … a coil drawing part; 33 … windings; 50 … wire winding mouth; 50a … around the side of the nozzle; 51 … winding passing part; 51a … inner wall surface; 52 … front slot part; 52a … inner wall surface; 54 … plane; 55 … fixing the side end face; 56 … front face; 57 … first intersection; 58 … second intersection; 59 … third intersection; 60 … horizontal movement mechanism; 61 … nozzle holding part; 62 … pulley; 63 … a tension section; a 64 … coil support; 100 … winding machine; 102 … coil; 130 … a coil drawing part; 150 … wire winding mouth; 151 … winding passing part; 155 … fixing the side end face; 156 … front face; 157 … first intersection; 159 … third intersection; 200 … winding machine; 250 … wire winding mouth; 251 … through part of winding; 252 … front slot; a … arrow; a P … arrow; a Q … arrow; r … rotation direction; the t … trace; a w … gap; angle θ ….
Claims (10)
1. A winding nozzle in a winding machine that winds a winding around an iron core to form a coil, wherein the winding is drawn out from the winding nozzle, and the winding nozzle moves around the iron core to wind the winding around the iron core, the winding nozzle comprising:
a fixed side end surface which is an end surface mounted on one side of a nozzle holding portion of the winding machine;
a front end surface which is an end surface of a side from which the winding wire is pulled out;
a winding wire passage portion formed from the fixing side end surface to the distal end surface so as to pass the winding wire; and
and a leading end groove portion communicating with the winding wire passage portion and formed in a groove shape on the leading end surface.
2. The winding nozzle according to claim 1,
the first intersection portion where the inner wall surface of the winding passing portion intersects with the inner wall surface of the leading end groove portion is connected by a continuous surface with a curved surface.
3. The winding nozzle according to claim 1 or 2,
the winding wire passage portion is a groove that penetrates from the fixing side end surface to the distal end surface.
4. The winding nozzle according to claim 1 or 2,
the winding wire passage portion is a hole penetrating from the fixing side end surface to the distal end surface.
5. The bobbin nozzle according to any one of claims 1 to 4,
and a second intersection portion, which is disposed between the fixing side end surface and the tip end surface and at which a side surface of the winding tip intersects with an inner wall surface of the tip end groove portion, is connected by a continuous surface with a curved surface.
6. The bobbin nozzle according to any one of claims 1 to 5,
and a third intersection portion where the fixed-side end surface intersects with an inner wall surface of the winding wire passage portion is connected by a continuous surface with a curved surface.
7. A winding machine is characterized by comprising:
at least one bobbin nozzle as claimed in any one of claims 1 to 6;
a nozzle holding portion that holds the winding nozzle; and
and a horizontal movement mechanism that moves the nozzle holding portion in a horizontal direction.
8. The winding machine according to claim 7,
the winding nozzle is fixed to the nozzle holding portion so as to be rotatable about a center axis of the winding nozzle.
9. The winding machine according to claim 8,
further comprising a control device for controlling the horizontal position of the winding nozzle and the rotation angle around the central axis of the winding nozzle,
when a portion of the winding wire from the front end groove portion of the winding nozzle to a winding portion wound around teeth of the iron core is used as a winding wire drawing portion,
the control device controls the horizontal position and the rotation angle so that an angle formed by the winding wire drawing portion and the extending direction of the leading end groove portion becomes a constant value.
10. The winding machine according to any one of claims 7 to 9,
at least one of the winding nozzles is composed of a plurality of winding nozzles,
the plurality of winding nozzles are configured to operate simultaneously.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/036049 WO2020065853A1 (en) | 2018-09-27 | 2018-09-27 | Winding nozzle and winding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112740520A true CN112740520A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880096969.XA Pending CN112740520A (en) | 2018-09-27 | 2018-09-27 | Winding nozzle and winding machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7008836B2 (en) |
| CN (1) | CN112740520A (en) |
| WO (1) | WO2020065853A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114244041A (en) * | 2021-12-23 | 2022-03-25 | 重庆阿波罗港城科技有限公司 | Generator rotor winding production system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112583215B (en) * | 2020-11-25 | 2022-10-21 | 浙江诺德智能自动化科技有限公司 | Multi-needle type winding method |
| WO2022137383A1 (en) * | 2020-12-23 | 2022-06-30 | 三菱電機株式会社 | Winding machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001118740A (en) * | 1999-10-15 | 2001-04-27 | Totoku Electric Co Ltd | Movable nozzle for coil winding |
| JP2001267170A (en) | 2000-03-17 | 2001-09-28 | Nittoku Eng Co Ltd | Wire supply nozzle for winder and winder, and winding method |
| JP2002010586A (en) * | 2000-06-19 | 2002-01-11 | Tamagawa Seiki Co Ltd | Winding nozzle structure |
| JP4409751B2 (en) | 2000-11-22 | 2010-02-03 | 株式会社東芝 | Winding device and winding method |
| JP3777514B2 (en) * | 2003-04-22 | 2006-05-24 | 西芝電機株式会社 | Aligned winding apparatus and winding method for rotating electrical machine |
| JP2008270309A (en) | 2007-04-17 | 2008-11-06 | Citizen Electronics Co Ltd | Coil winding nozzle and process for manufacturing small-sized coil using coil winding nozzle |
-
2018
- 2018-09-27 JP JP2020547742A patent/JP7008836B2/en active Active
- 2018-09-27 WO PCT/JP2018/036049 patent/WO2020065853A1/en active Application Filing
- 2018-09-27 CN CN201880096969.XA patent/CN112740520A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114244041A (en) * | 2021-12-23 | 2022-03-25 | 重庆阿波罗港城科技有限公司 | Generator rotor winding production system |
| CN114244041B (en) * | 2021-12-23 | 2023-03-14 | 重庆阿波罗港城科技有限公司 | Generator rotor winding production system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020065853A1 (en) | 2020-04-02 |
| JP7008836B2 (en) | 2022-01-25 |
| JPWO2020065853A1 (en) | 2021-04-30 |
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