JP6241382B2 - Stator manufacturing apparatus and stator manufacturing method - Google Patents

Description

  Embodiments disclosed herein relate to a stator manufacturing apparatus and a stator manufacturing method.

  Patent Document 1 describes a stator manufacturing apparatus that performs a step of annularly arranging a plurality of divided cores in a stator manufacturing process.

JP 2006-352966 A

  In the prior art described above, in the step of arranging the plurality of divided cores in an annular shape, the operation of removing the fixing plate from the divided core holding jig and rotating it is not automated. For this reason, in order to reduce the man-hour of the worker in the above process, further optimization of the apparatus configuration is desired.

  The present invention has been made in view of such problems, and an object thereof is to provide a stator manufacturing apparatus and a stator manufacturing method capable of automating a process of arranging a plurality of divided cores in a ring shape.

  In order to solve the above-described problem, according to one aspect of the present invention, there is provided a stator manufacturing apparatus configured to arrange a plurality of divided cores in an annular shape, wherein the plurality of divided cores are arranged in an annular shape. An array table in which grooves are formed, a set device configured to set the divided core at a set position of the grooves, and the divided core set by the set device by a predetermined amount from the set position. And a stator manufacturing device having a feeding device configured to slide along the same.

According to another aspect of the present invention, there is provided a stator manufacturing method for manufacturing a stator by arranging a plurality of divided cores in an annular shape, which is executed by a stator manufacturing apparatus having an arrangement table, a setting device, and a feeding device. , by the setting device, a first step of setting said split cores the set position of the annular groove formed in the sequence table, by the feeding device, by a predetermined amount the divided cores set from the set position A stator manufacturing method having a second step of sliding along the groove is applied.

  According to the present invention, it is possible to automate the process of arranging the plurality of divided cores of the stator in an annular shape.

It is a perspective view showing an example of the whole composition of the stator manufacture device concerning an embodiment. It is a top view showing a part of structure of a stator manufacturing apparatus. It is explanatory drawing showing an example of the arrangement | sequence operation | movement of a divided coil. It is explanatory drawing showing an example of the arrangement | sequence operation | movement of a divided coil. It is explanatory drawing showing an example of the arrangement | sequence operation | movement of a divided coil. It is explanatory drawing showing an example of the arrangement | sequence operation | movement of a divided coil. It is explanatory drawing showing an example of the arrangement | sequence operation | movement of a divided coil. It is explanatory drawing showing an example of the arrangement | sequence operation | movement of a divided coil. It is explanatory drawing showing an example of the arrangement | sequence operation | movement of a divided coil. It is explanatory drawing showing an example of the manufactured stator. It is a flowchart showing an example of the procedure of a stator manufacturing method.

  Hereinafter, an embodiment will be described with reference to the drawings. In the following, for convenience of description of the configuration of the stator manufacturing apparatus and the like, directions such as up, down, left and right may be used as appropriate, but the positional relationship of each configuration of the stator manufacturing apparatus and the like is not limited.

<Configuration of stator manufacturing device>
The configuration of the stator manufacturing apparatus 1 according to this embodiment will be described with reference to FIGS. 1 and 2. The stator manufacturing apparatus 1 is an apparatus that annularly arranges a plurality of divided cores 2 around which a coil 21 (see an enlarged view in FIG. 1) is wound in a manufacturing process of a stator of a rotating electrical machine.

  As shown in FIGS. 1 and 2, the stator manufacturing apparatus 1 includes an arrangement table 4, a setting device 5, and a feeding device 6.

  The array table 4 includes, for example, a base 41 having a substantially square shape in plan view, a cylindrical portion 42 provided on the upper portion of the base 41, and an annular groove 43 formed so as to surround the cylindrical portion 42. A plurality of split cores 2 are slidably arranged in the groove 43. The number of divided cores 2 is not particularly limited, but in the present embodiment, a case of 12 is described as an example (see FIGS. 8 and 9 described later). The outer circumferential length and inner circumferential length of the groove 43 are the total length of the outer circumferential side (the outer circumferential side of the yoke 22) and the inner circumferential side (the inner circumferential side of the teeth 23) of the split core 2, respectively. It is set to be slightly larger than that (see FIGS. 8 and 9 to be described later). The cylindrical portion 42 is provided so as to protrude upward from the upper end of the base 41.

  Note that the planar view shape of the base 41 is not limited to a substantially square shape, and may be, for example, a rectangle or a circle. Further, the height of the cylindrical portion 42 may be equal to or lower than the upper end of the base 41.

  Further, the arrangement table 4 includes a friction member 44 on the downstream side of the set position P in the sliding direction of the split cores 2 (counterclockwise direction in the present embodiment). As shown in FIG. 2, the friction member 44 has, for example, a curved contact surface 44 a and is fixed to the upper surface of the base 41. When the split core 2 that has been slid by a predetermined amount from the set position P by the feeding device 6 hits the preceding split core 2 that has been slid first, the friction member 44 has an outer peripheral surface (the outer periphery of the yoke 22). The contact surface 44a is brought into contact with the surface) to provide frictional resistance. Thereby, it is possible to improve the certainty of the uneven fitting between the yoke 22 of the preceding split core 2 and the yoke 22 of the succeeding split core 2 slid from the rear.

  The set device 5 is a device that sets the split core 2 at the set position P of the groove 43. The term “set” here means that the split core 2 is inserted into the groove 43 and the longitudinal direction is made to be self-supporting so as to be slidable in the groove 43. The “set position” refers to an input position at which the split core 2 is input into the groove 43 by the setting device 5.

  The set device 5 includes a shooter 51 that guides the divided core 2 to the vicinity of the set position P, a support member 52 that rotatably supports the lower end portion of the shooter 51, and a cylinder that rotates the shooter 51 to change the inclination angle. 53. A receiving plate 54 is provided at the lower end of the shutter 51, and the support member 52 supports the lower end of the shooter 51 so that the receiving plate 54 is close to the set position P of the groove 43.

  The cylinder 53 is an example of a first drive device, and the drive source thereof is not particularly limited, such as electric, pneumatic, or hydraulic. Further, the first drive device is not limited to the cylinder, and any drive device other than the cylinder such as a linear motor or a rotary motor may be used as long as the inclination angle of the shooter 51 can be varied.

  The shuter 51 is held at a predetermined inclination angle by the cylinder 53, and the split core 2 is supplied from a supply device (not shown) in this state. The shooter 51 slides the split core 2 downward by gravity in a laid posture with the yoke 22 on the lower side while the axial direction of the split core 2 (the axial direction of the rotating electrical machine) is the longitudinal direction of the shooter 51. The split core 2 that has slid down rests at the lower end of the shooter 51 by the receiving plate 54. After that, the shooter 51 has a posture in which the tilt angle is increased by driving the cylinder 53 and the split core 2 is raised. When the shooter 51 is further tilted toward the arrangement base 4 than in the vertical vertical direction, the split core 2 slides on the receiving plate 54 by gravity and is inserted into the set position P of the groove 43. The input split core 2 is held in the groove 43 in a posture in which the yoke 22 is the outer peripheral side and the axial direction is the vertical direction. In this way, the split core 2 is set at the set position P in a self-supporting state. When the setting of the split core 2 to the set position P is completed, the shooter 51 is returned to the initial posture after the inclination angle is reduced by driving the cylinder 53. As described above, the shooter 51 repeats guiding and setting the sequentially supplied divided cores 2 to the set position P.

  In addition, when the cylindrical part 42 protrudes from the upper end of the base 41, it functions as a stopper when the split core 2 is thrown in, and the outer peripheral surface of the cylindrical part 42 contacts the inner peripheral surface of the teeth 23 of the split core 2. Thus, the effect of maintaining the independent posture of the split core 2 is enhanced.

  The set device 5 is not limited to the configuration having the shooter 51 and the cylinder 53 described above, and uses other means such as a robot arm that holds and moves the split core 2 with an openable / closable robot hand. May be.

  The feeding device 6 is a device that slides the divided core 2 set by the setting device 5 along the groove 43 from the setting position P by a predetermined amount. As shown in FIG. 2, the feeding device 6 includes a bar member 61 provided in the groove 43 in the vicinity of the set position P, and a motor 62 that drives the bar member 61.

  The rod member 61 has, for example, a columnar shape, is erected in the groove 43, and is configured to reciprocate a predetermined amount along the direction of the groove 43. This predetermined amount is set to be slightly larger than the circumferential width of the split core 2, and the split core 2 moved by the bar member 61 and the subsequent split core 2 set at the set position P thereafter are: It is made not to contact (refer FIG. 5 mentioned later). For example, an arcuate opening 43 a that allows the rod member 61 to move is provided at the bottom of the groove 43.

  Note that the rod member 61 is not limited to the above shape, and may be, for example, a prismatic shape or a plate shape. Further, the bar member 61 is not necessarily provided standing in the groove 43, and may be configured to protrude from the side surface of the cylindrical portion 42 toward the outer periphery, for example. In this example, the rod member 61 is left protruding in the groove 43. However, the rod member 61 may be provided in the groove 43 so as to be freely protruded and retracted as necessary.

  The motor 62 is built in the arrangement table 4. The motor 62 is a rotary motor in this example, and reciprocates the rod member 61 by a predetermined amount along the direction of the groove 43 via an arm 63 attached to the output shaft 62a.

  The motor 62 is an example of a second drive device, and the drive source thereof is not particularly limited, such as electric, pneumatic, or hydraulic. Further, the second driving device is not limited to the rotary motor, and other driving devices such as a linear motor and a cylinder may be used as long as the rod member 61 can reciprocate along the direction of the groove 43. May be used.

  The rod member 61 has an end portion on one side in the circumferential direction of the opening 43a as an initial position. The rod member 61 is moved by a predetermined amount toward the other side in the circumferential direction by driving the motor 62 (counterclockwise direction in the present embodiment), and pushes the divided core 2 set by the setting device 5 from the set position P. Slide along the groove 43 by a predetermined amount. The rod member 61 on which the split core 2 is slid is moved by a predetermined amount toward one side in the circumferential direction (clockwise in the present embodiment) by the reverse driving of the motor 62, and before the split core 2 is slid. Is returned to the initial position. In this manner, the bar member 61 repeatedly slides the split cores 2 set one after another at the set position P by the setting device 5 along the groove 43 from the set position P by a predetermined amount.

  In contrast to the above, the end of the opening 43a on the other side in the circumferential direction may be set as the initial position, and the split core 2 may be slid toward the one side in the circumferential direction (clockwise).

  As shown in the enlarged view in FIG. 1, each of the split cores 2 includes, for example, a yoke 22 that forms a part of a cylinder, and a tooth 23 that protrudes radially inward from the yoke 22. A coil 21 is wound around 23. In this example, the teeth 23 are inclined with respect to the yoke 22 in the circumferential direction (circumferential direction of the rotating electrical machine) and have a skew. The yoke 22 includes, for example, a V-shaped protrusion 24 on one side in the circumferential direction, and a V-shaped recess 25 on the other side in the circumferential direction. The plurality of divided cores 2 are arranged in an annular shape with the adjacent divided cores 2 fitting the convex portions 24 and the concave portions 25 to each other.

  The split core 2 is not limited to the above structure, and may be a split core that does not have a skew structure or an uneven fitting structure. In addition, the split core 2 does not necessarily have the coil 21 wound around. For example, after the split cores around which the coil 21 is not wound in the stator manufacturing apparatus 1 are arranged in an annular shape, an air core coil is mounted or the like. Good.

<Arrangement of split core>
Next, the arrangement | sequence operation | movement of the split core 2 by the stator manufacturing apparatus 1 is demonstrated using FIGS. 3 to 9, the configuration is omitted as appropriate so that the arrangement operation of the divided cores 2 can be easily understood.

  FIG. 3 shows a state in which the first split core 2 is set at the set position P of the groove 43 of the arrangement table 4 by the setting device 5. At this time, the initial position of the bar member 61 is set so that the set split core 2 and the bar member 61 do not contact each other, and the split core 2 and the bar member 61 are not easily damaged. From this state, as shown in FIG. 4, when the rod member 61 of the feeding device 6 is moved by a predetermined amount in the counterclockwise direction along the groove 43 by driving the motor 62, the split core 2 set at the set position P is used. Slides from the set position P along the groove 43 by a predetermined amount. At this time, the outer peripheral surface of the slide split core 2 (the outer peripheral surface of the yoke 22) comes into contact with the contact surface 44 a of the friction member 44.

  After that, as shown in FIG. 5, the rod member 61 that has slid the split core 2 returns to the original initial position by driving the motor 62, and the second split core 2 is set at the set position P vacated by the setting device 5. Set. At this time, as described above, the amount of movement of the bar member 61 is set to be slightly larger than the width in the circumferential direction of the divided core 2, so that the second piece set with the first divided core 2 slid is set. Contact with the split core 2 is avoided, and the split core 2 is not easily damaged.

  Then, as shown in FIG. 6, the second split core 2 slides a predetermined amount along the groove 43 from the set position P by the movement of the bar member 61. At this time, the second divided core 2 hits the preceding first divided core 2, but frictional resistance is applied to the first divided core by the friction member 44. The convex part 24 of the 1st division | segmentation core 2 preceding the recessed part 25 of this division | segmentation core 2 is fitted, and the reliability of uneven | corrugated fitting can be improved. The first divided core 2 fitted with the unevenness is pushed by the second divided core 2 that slides by a predetermined amount and slides by a predetermined amount along the groove 43. The outer peripheral surface of the second split core 2 slid by a predetermined amount comes into contact with the friction member 44.

  In this way, the following split core 2 is abutted by sliding against the preceding split core 2 to which the frictional resistance is applied by the friction member 44, and the split core 2 subsequent to the preceding split core 2 is concavo-convexly fitted. And repeat the sequential arrangement. FIG. 7 shows a state where up to the sixth split core 2 is arranged.

  Then, as shown in FIG. 8, the last (twelfth in this example) split core 2 is set at the set position P. At this time, as described above, the outer peripheral length and inner peripheral length of the groove 43 are set to be slightly larger than the total length of the outer peripheral length and inner peripheral length of the split core 2. The contact of the 12th divided core 2 with the first divided core 2 that is the head of the array and the 11th divided core 2 that is the last is avoided, and breakage of the divided core 2 occurs. It has a difficult structure.

  Thereafter, as shown in FIG. 9, when the last split core 2 is slid by a predetermined amount by the movement of the bar member 61, a plurality of (in this example, 12) split cores 2 are arranged in a substantially annular shape by concavo-convex fitting. The divided split core assembly 3A is assembled. At this time, due to the relationship between the circumferential length of the groove 43 and the circumferential length of the divided core 2, a gap S is generated between the first divided core 2 and the last divided core 2 of the divided core coupling body 3 </ b> A.

  Thereafter, the split core coupling body 3A is removed from the arrangement table 4 by, for example, manual operation of an operator, and the concave portion 25 of the leading split core 2 and the convex section 24 of the rearmost split core 2 are separated from the split core coupling body 3A. As shown in FIG. 10, the stator 3 in which the plurality of split cores 2 are connected in an annular shape by the concave-convex fitting is manufactured.

<Procedure of stator manufacturing method>
Next, an example of the procedure of the stator manufacturing method by the stator manufacturing apparatus 1 will be described with reference to FIG. This procedure is executed by, for example, a controller (not shown) that controls the stator manufacturing apparatus 1.

  In step S <b> 10, the split core 2 is set at the set position P of the groove 43 of the arrangement table 4 by the setting device 5. That is, when the split core 2 is supplied to the shooter 51 of the setting device 5, the shooter 51 guides the split core 2 to the vicinity of the set position P in a lying position. Then, the tilt angle of the shooter 51 is increased by driving the cylinder 53 so that the split core 2 guided to the set position P is raised and set to the set position P of the groove 43 in a self-supporting state. This step S10 corresponds to an example of a first step.

  In step S20, the feeding device 6 reciprocates the bar member 61 by a predetermined amount along the direction of the groove 43, so that the split core 2 set at the set position P moves along the groove 43 from the set position P by a predetermined amount. And slide. At this time, the split core 2 slid by a predetermined amount from the set position P comes into contact with the friction member 44 and is given frictional resistance. As a result, the succeeding divided core 2 abuts against the preceding divided core 2 to which frictional resistance is applied while being concavo-convexly fitted, and is arranged in an annular shape. This step S20 corresponds to an example of the second step and the third step.

  In step S30, the controller determines whether or not the arrangement of all the split cores 2 has been completed. If the arrangement of all the split cores 2 has not been completed, the determination is not satisfied (step S30: NO), and the same procedure is repeated by returning to step S10. If the arrangement of all the split cores 2 is completed, the determination is satisfied (step S30: YES), and this flow ends.

<Effect of embodiment>
As described above, the stator manufacturing apparatus 1 according to the present embodiment uses the setting device 5 to set the split core 2 at the set position P of the annular groove 43 formed on the array base 4, and the feeding device 6. The split core 2 set by using is slid along the groove 43 from the set position P by a predetermined amount. By repeating these operations as many times as the number of divided cores 2, a plurality of divided cores 2 can be automatically arranged in a ring shape. In this way, since the process of arranging the split cores 2 in an annular shape can be automated, the number of man-hours for workers in the process can be greatly reduced.

  In the present embodiment, in particular, the set device 5 includes a shooter 51 that guides the split core 2 to the set position P, and a cylinder 53 that varies the inclination angle of the shooter 51. Thereby, the attitude | position of a split core can be changed using the shooter 51. FIG. That is, by reducing the inclination angle of the shooter 51, the divided core 2 is guided to the set position P in the lying position, and by increasing the inclination angle of the shooter 51, the divided core 2 is raised and is in an independent state. It is possible to set in the groove 43. In this way, guidance, posture change, and setting of the split core 2 can be performed with a single device.

  In the present embodiment, in particular, the feeding device 6 includes a bar member 61 installed in the groove 43 and a motor 62 that reciprocates the bar member 61 by a predetermined amount along the direction of the groove 43. Thereby, by repeating the reciprocating movement of the bar member 61, the divided cores 2 set at the set position P can be sequentially slid by a predetermined amount. Further, the pusher installation space can be reduced by using the rod member 61 as a member for pushing the split core 2, and the finished gap S (the gap between the first split core 2 and the last split core 2) can be made as small as possible. Can do.

  In the present embodiment, in particular, a plurality of divided cores 2 each having a concave portion 25 and a convex portion 24 are arranged in an annular shape so that adjacent divided cores 2 are unevenly fitted to each other. In this case, since the split core 2 cannot be assembled from the outside in the radial direction, automation is difficult. In the present embodiment, the split cores 2 are slid in the circumferential direction and assembled sequentially, so that even a stator having the above structure can be automated.

  In the present embodiment, in particular, the plurality of divided cores 2 each having a skew in the teeth 23 are arranged in an annular shape so that the adjacent teeth 23 are fitted to each other. In this case, since the split core 2 cannot be assembled from the axial direction, automation is difficult. In the present embodiment, the split cores 2 are slid in the circumferential direction and assembled sequentially, so that even a stator having the above structure can be automated.

  Further, in this embodiment, in particular, the arrangement member 4 is provided with a friction member 44 that contacts the preceding divided core 2 against which the divided core 2 that has been slid by a predetermined amount from the set position P by the feeding device 6 comes into contact and imparts frictional resistance. Provide. This produces the following effects. That is, in the case where the adjacent split cores 2 are configured to be unevenly fitted to each other, the preceding split core 2 moves when the subsequent split core 2 is slid by the feeding device 6 and hits the preceding split core 2. The concave portion 25 and the convex portion 24 may not be sufficiently fitted. In this embodiment, since frictional resistance is imparted to the preceding split core 2 by the friction member 44, the split cores 2 can be sequentially arranged while performing uneven fitting more reliably.

  In addition to those already described above, the methods according to the above embodiments may be used in appropriate combination.

  In addition, although not illustrated one by one, the above-described embodiment is implemented with various modifications within a range not departing from the gist thereof.

DESCRIPTION OF SYMBOLS 1 Stator manufacturing apparatus 2 Divided core 4 Arrangement stand 5 Set apparatus 6 Feeder 21 Coil 24 Convex part 25 Concave part 43 Groove 44 Friction member 51 Shutter 53 Cylinder (an example of a 1st drive device)
61 Bar member 62 Motor (an example of a second drive unit)
P set position

Claims (10)

A stator manufacturing apparatus configured to annularly arrange a plurality of divided cores,
An array base having an annular groove in which the plurality of divided cores are arrayed;
A set device configured to set the split core at a set position of the groove;
A feeding device configured to slide the split core set by the setting device along the groove by a predetermined amount from the set position;
A stator manufacturing apparatus comprising: The set device is
A shooter for guiding the split core to the set position;
A first driving device configured to vary an inclination angle of the shooter;
The stator manufacturing apparatus according to claim 1, comprising: The feeding device is
A rod member installed in the groove;
A second drive device configured to reciprocate the rod member by the predetermined amount along the direction of the groove;
The stator manufacturing apparatus according to claim 1, wherein the stator manufacturing apparatus comprises: 4. The structure according to claim 1, wherein each of the plurality of divided cores each having a concave portion and a convex portion is arranged in an annular shape so that the adjacent divided cores are engaged with each other. The stator manufacturing apparatus according to claim 1. A friction member fixed to the array base and configured to contact the preceding divided core that the divided core that has been slid by the feeding device from the set position by the predetermined amount abuts against the preceding divided core to provide a frictional resistance. The stator manufacturing apparatus according to claim 4, comprising: A stator manufacturing method for manufacturing a stator by arranging a plurality of divided cores in an annular shape, which is executed by a stator manufacturing apparatus having an arrangement table, a setting device, and a feeding device ,
A first step of setting the split core at a set position of an annular groove formed on the array table by the setting device ;
A second step of sliding the set divided core along the groove by a predetermined amount from the set position;
The stator manufacturing method characterized by having. In the first step,
The stator manufacturing method according to claim 6, wherein an inclination angle of a shooter that guides the divided core to the set position is variable. In the second step,
A rod member installed in the groove is reciprocated by the predetermined amount along the direction of the groove;
The stator manufacturing method according to claim 6 or 7, wherein 9. The stator is manufactured by arranging the plurality of divided cores each having a concave portion and a convex portion in an annular shape so that the adjacent divided cores are engaged with each other. The stator manufacturing method according to claim 1. 10. The stator manufacturing method according to claim 9, further comprising a third step of imparting a frictional resistance to the preceding divided core against which the divided core slid by the predetermined amount from the set position.

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