JP2006352966A - Split-core arraying device, stator manufacturing apparatus using it, and stator production method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a stator through a process of arraying a plurality of split cores 2 in an annular form, in the manufacture process of the stator 10, which is equipped with an annular yoke 1 and a plurality of split cores 2 which are provided separately for each tooth at the inner circumference of the yoke 1 and where coils 3 are wound. <P>SOLUTION: A split-core arraying device 50 is equipped with a plurality of divided core holding jigs 11 which retain the plurality of split cores 2 each and a coupling means 21, which rotatably couples the adjacent split-core holding jigs 11. The plurality of split core holding jigs 11 can be unfolded in a row and arrayed in annular form. According to the split-core arrayer 50, the adjacent split-core holding jigs 11 are split rotatably with each other, thus to accommodate the split cores 2 in the divided core holding jigs 11, in such a state that the split-core holding cores 11 are arrayed in a row, and after accommodation of the split cores 2, each split-core holding jig 11 is rotated to bring the other facing edges 11c of the adjacent split-core holding jigs 11 into contact with each other, whereby the split cores 2 arrayed in annular form can be obtained easily. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a split core arrangement device that performs a step of annularly arranging a plurality of split cores in a stator manufacturing process, a stator manufacturing device using the same, and a stator manufacturing method. The present invention relates to a split core array device, a stator manufacturing device using the same, and a stator manufacturing method.

As a structure of a concentrated winding stator of an electric motor, there is one having a plurality of divided cores in which a coil is wound around the inner periphery of the stator. As a conventional manufacturing method of such a concentrated winding stator, a plurality of divided cores wound with coils are arranged in an annular shape by a holding jig, and an annular yoke is fitted on the outer periphery of the annularly arranged divided cores. There is a method of obtaining a stator by combining them (for example, Patent Document 1).
JP-A-2-7851

  In such a conventional concentrated winding stator manufacturing method, when the divided cores are arranged in an annular shape, it is necessary to fit the plurality of divided cores to an annular holding jig. In that case, since the shape of the holding jig is annular, in order to fit the split core to the holding jig, the fitting operation must be performed while changing the angle of the split core.

  When such a manufacturing method is performed on an automated manufacturing line, the manufacturing apparatus becomes complicated, and the manufacturing cost of the stator becomes expensive. The present invention has been made in view of the above problems, and a split core array device capable of simply performing a step of annularly arranging a plurality of split cores around which a coil is wound, and the split core array thereof It is an object of the present invention to provide a stator manufacturing apparatus and a stator manufacturing method using the apparatus.

  The present invention provides a split core arrangement device that annularly arranges a plurality of split cores wound with coils, and a plurality of split core holding jigs that respectively hold the plurality of split cores and the adjacent split core holding jigs. Connecting means for rotatably connecting the tools, wherein the plurality of split core holding jigs can be developed in a row and arranged in an annular shape.

  The present invention also provides a stator manufacturing apparatus for a stator comprising an annular yoke and a plurality of divided cores each provided with teeth on the inner periphery of the yoke and wound with a coil. A split core taking-out mechanism for taking out the plurality of split cores in an annularly arranged state from the split core holding jig, and a split core inserting mechanism for inserting the annularly arranged split cores on the inner periphery of the yoke It is characterized by providing.

  Furthermore, the present invention provides a stator manufacturing method of a stator comprising an annular yoke and a plurality of divided cores that are provided for each tooth on the inner circumference of the yoke and in which coils are wound. The step of holding with a plurality of split core holding jigs arranged in the opposite direction of the adjacent split core holding jigs by connecting means for rotatably connecting the adjacent split core holding jigs A step of annularly arranging the plurality of divided cores held by the plurality of divided core holding jigs by bringing them into contact with each other; and the plurality of divided cores are arranged annularly from the plurality of divided core holding jigs. And a step of inserting the annularly arranged divided cores into the inner periphery of the yoke.

  According to the present invention, since the adjacent split core holding jigs are rotatably connected, when the split cores are accommodated in the split core holding jig, the split core holding jigs are arranged in a row. After the split cores are accommodated, each split core holding jig is rotated and the opposing edges of the adjacent split core holding jigs are brought into contact with each other to easily obtain the split cores arranged in an annular shape. Can do. A stator can be easily obtained by combining the annularly arranged divided cores and the annular yoke.

  Below, the split core arrangement | sequence apparatus 50 and the stator manufacturing apparatus 100 which are embodiment of this invention are demonstrated with reference to drawings. The manufacturing process by the stator manufacturing apparatus 100 includes four processes from the first process to the fourth process, and the split core arrangement apparatus 50 is an apparatus that performs the first process and the second process. A set of devices that perform each of the four steps including the core array device 50 is indicated.

  FIG. 1 is a cross-sectional view of a stator manufactured by the stator manufacturing apparatus 100, FIG. 2 is a perspective view of a split core arrangement apparatus 50, and FIG. 3 shows a split core as a split core holding jig in the first step. FIG. 4 is a plan view of the split core array device 50 in the state of FIG. 3, and FIG. 5 is a split core array device 50 in the state of FIG. FIG. 6 is a perspective view of the split core arrangement device 50 in a state in which the split core holding jigs are annularly arranged in the second step, and FIG. 7 shows the third step in the stator manufacturing apparatus 100. FIG. 8 is a diagram illustrating a split core taking-out mechanism to be performed, and FIG. 8 is a diagram illustrating a split core inserting mechanism for performing a fourth step in the stator manufacturing apparatus 100.

  The split core arrangement device 50 is a device that performs a step of annularly arranging a plurality of split cores 2 in a manufacturing process of a stator 10 including an annular yoke 1 and a plurality of split cores 2 provided on the inner periphery of the yoke 1. It is.

  The stator manufacturing apparatus 100 includes the split core arrangement apparatus 50 and other apparatuses described later, and manufactures the stator 10. The stator manufacturing apparatus 100 manufactures the stator 10 having a structure in which the yoke 1 and the split core 2 can be separated. .

  As shown in FIG. 1, the divided core 2 is divided for each tooth and wound with a coil 3. A yoke flange portion 4 in contact with the inner periphery of the yoke 1 and a tooth portion 5 around which the coil 3 is wound. And a tip collar portion 6 provided at the tip of the teeth portion 5. Therefore, the yoke collar 4 and the tip collar 6 have an arc shape, and the radius of the yoke collar 4 is larger than the radius of the tip collar 6.

  First, the split core arrangement device 50 will be described with reference to FIGS. The split core arrangement device 50 includes a plurality of split core holding jigs 11 that respectively hold a plurality of split cores 2, and adjacent split core holding jigs 11 can be rotated via a plurality of jig connecting members 12. Connected to As described above, the plurality of split core holding jigs 11 are connected so that they can be expanded and arranged in a ring. The split core arrangement device 50 also includes a fixing plate 16 that is arranged integrally with each of the split core holding jigs 11 and that fixes and arranges the plurality of split core holding jigs 11 in a row.

  The split core holding jig 11 includes a head portion 7 and a leg portion 8 and is placed on a pallet 29 that is a work table. The head 7 is composed of a main body 7a and a U-shaped piece 7b provided integrally with the main body 7a, and an accommodation portion 15 for accommodating the divided core 2 is formed by a concave portion of the U-shaped piece 7b. In other words, the split core 2 is held by the two opposing surfaces 15 a and 15 b that form the accommodating portion 15. In the figure, the U-shaped pieces 7b are provided as a pair on the main body 7a. However, the pair of U-shaped pieces 7b may be provided integrally. The leg portion 8 is an L-shaped member, and includes a support portion 8 a that supports the head portion 7 and a bottom plate portion 8 b that is a base that contacts the pallet 27.

  The jig connecting member 12 is fixed to the lower part of the U-shaped piece 7b in the head 7 of the split core holding jig 11, and the adjacent jig connecting members 12 are rotatably connected by a hinge portion 21 as a connecting means. Is done. The hinge 21 has a recess 21a formed at one end of the adjacent jig connecting member 12 and a protrusion 21b formed at the other end, and the fitting is used as a connecting member. It is comprised by inserting the pin 22 of this. Thus, each divided core holding jig 11 can freely rotate via the hinge portion 21 provided on the jig connecting member 12. In addition, the connection method of the adjacent jig | tool connection member 12 is not restricted to the connection by a hinge part, What kind of mechanism may be used if the adjacent jig | tool connection member 12 can rotate. Moreover, you may comprise so that the adjacent division | segmentation core holding jig | tool 11 may be directly connected by a hinge mechanism instead of providing the hinge part 21 in the jig | tool connection member 12 as a connection means.

  Since the back surface 11e of the split core holding jig 11 is formed in an arc shape, the split edge holding jig 11 is brought into contact with each other by contacting adjacent edges 11c of the split core holding jig 11 adjacent to each other. 11 are arranged in a ring shape as shown in FIG. That is, both edges of the U-shaped piece 7b of the head 7 and both edges of the bottom plate 8b of the leg 8 are formed obliquely. In addition, although the back surface 11e of the split core holding jig 11 is formed in an arc shape in the drawing, it may be formed in a linear shape. In that case, when the edge parts 11c which the adjacent division | segmentation core holding jig 11 opposes contact, and the division | segmentation core holding jig 11 is arranged, the division | segmentation core holding jig 11 will be in the state arranged in polygonal shape.

  The fixed plate 16 is a long plate on a straight line, and is arranged integrally with each divided core holding jig 11 on the top surface 11f of the head 7 of each divided core holding jig 11, as shown in FIG. The fixed plate 16 is provided in the holes 18a and 18b provided in the fixed plate 16 with protruding pins 17a provided on the upper surfaces 11f of the divided core holding jigs 11a and 11b at both ends of the plurality of divided core holding jigs 11, respectively. The split core holding jig 11 is fixed by inserting 17b. Thus, by arranging the fixed plate 16 integrally with each divided core holding jig 11, the plurality of divided core holding jigs 11 are fixedly arranged in a line along the longitudinal direction of the fixed plate 16. The fixing plate 16 is provided with protrusions 19 having a trapezoidal cross section at a predetermined interval.

  A method of holding the split core 2 by the split core holding jig 11 fixedly arranged in a line along the longitudinal direction of the fixed plate 16 by the fixed plate 16 will be described. As shown in FIGS. 4 and 5, the split core is arranged so that the yoke flange 4 and the surface 15a are parallel to the accommodating portion 15, and the tip flange 6 and the surface 15b are parallel. In addition, both end portions 4 a and 4 b of the yoke flange 4 are accommodated so as to engage with the protruding portion 19. Thereby, the movement of the split core 2 in the thickness direction is restricted by the two opposing surfaces 15 a and 15 b of the housing portion 15, and the movement of the split core 2 in the width direction is restricted by the protrusion 19. As described above, in a state where the plurality of split core holding jigs 11 are fixedly arranged in a row by the fixing plate 16, the plurality of split cores 2 held by the split core holding jig 11 are the yoke flanges in the split core 2. 4 is arranged in a straight line along the fixed plate 16.

  By holding the split core 2 on the split core holding jig 11 in this way, the fixing plate 16 disposed integrally with the split core holding jig 11 is removed, and the opposing edges of the adjacent split core holding jig 11 are opposed to each other. When the split core holding jig 11 is rotated so that the parts 11c are brought into contact with each other, the split core 2 held by the split core holding jig 11 is adjacent to the yoke collar as shown in FIG. The end portions of 4 and the end portions of the adjacent distal end collar portions 6 are in a state of facing each other. That is, the split core 2 is held by the split core holding jig 11 in an annular arrangement with the yoke flange 4 as the outer peripheral portion and the tip flange 6 as the inner peripheral portion.

  As described above, when the fixed core 16 is used in the split core arrangement device 50, the split core holding jig 11 is fixedly arranged in a row. Further, when the fixed plate 16 is not used, the restrained state of each divided core holding jig 11 is released, and each divided core holding jig 11 is freely rotated via the hinge portion 21 of the jig connecting member 12. It will be ready.

  Next, the stator manufacturing apparatus 100 will be described. The stator manufacturing apparatus 100 is a set of apparatuses that perform the respective manufacturing processes of the stator 10, and includes a split core array apparatus 50 (see FIGS. 2 to 6) that performs the first and second processes, and is arranged in an annular shape. A split core take-out mechanism 13 (see FIG. 7) for performing a third step of taking out the split cores 2 in an annularly arranged state from the split core holding jig 11, and split cores arranged in an annular shape on the inner periphery of the yoke 1 And a split core insertion mechanism 14 (see FIG. 8) that performs a fourth step of inserting 2. Since the split core arrangement device 50 has been described above, the split core take-out mechanism 13 and the split core insertion mechanism 14 will be described below.

  As shown in FIG. 7, the split core take-out mechanism 13 annularly places the mounting base 23 on which the split core holding jig 11 arranged in an annular shape is fixed and the split core 2 held by the split core holding jig 11. And a drive mechanism 25 that moves the gripping mechanism 24 that grips the split core 2 upward.

  The gripping mechanism 24 includes a pair of arms 24a and 24b, and sandwiches the split core 2 arranged in an annular shape by the arms 24a and 24b from two directions. Since each split core 2 is held by the split core holding jig 11 with the end of the yoke flange 4 and the end of the tip flange 6 of the adjacent split core 2 in contact with each other, as shown in the figure Further, by sandwiching the two split cores facing each other by the pair of arms 24a, 24b, the split cores 2 can be taken out in an annularly arranged state. The drive mechanism 25 may be any mechanism that can move the gripping mechanism 24 up and down, such as a combination of a motor and a ball screw.

  As shown in FIG. 8, the split core insertion mechanism 14 includes a mounting table 26 for fixedly mounting the split cores 2 arranged in an annular shape, a support mechanism 27 for supporting the yoke 1, and a yoke supported by the support mechanism 27. 1 is provided with an insertion drive mechanism 28 that moves 1 toward the split core 2 and press-fits the split cores 2 arranged annularly on the inner periphery of the yoke 1.

  The support mechanism 27 includes a disk-shaped yoke support portion 27a connected to the insertion drive mechanism 28 and a magnet 27b embedded in the yoke support portion 27a, and supports the yoke 1 by the magnetic force of the magnet 27b. . The insertion drive mechanism 28 may be any mechanism as long as it can move the support mechanism 27 up and down, such as a combination of a motor and a ball screw.

  A method of manufacturing the stator 10 using the split core arrangement device 50 and the stator manufacturing device 100 configured as described above will be described.

  As shown in FIG. 2, the fixed plate 16 is arranged on the divided holding jig 11 so that the projecting pins 17 a and 17 b of the divided core holding jig 11 are inserted into the holes 18 a and 18 b of the fixed plate 16. Thereby, the divided core arrangement device 50 is in a state where the divided core holding jigs 11 are fixedly arranged in a row along the fixed plate 16.

  As shown in FIGS. 3 and 4, each divided core 2 is accommodated in the accommodating portion 15 of each divided core holding jig 11 so that both end portions 4 a and 4 b of the yoke flange 4 are engaged with the protruding portion 19. (First step). Thereby, the movement of the split core 2 in the thickness direction is restricted by the accommodating portion 15, and the movement in the width direction is restricted by the protruding portion 19. In addition, after inserting the split core 2 in all the split core holding jigs 11, the insulating film of the coil 3 of the adjacent split core 2 is peeled off, and the conductive portion is welded and connected.

  As shown in FIG. 6, the fixing plate 16 is removed from the split core holding jig 11 to release the restrained state of each split core holding jig 11. Then, the split core holding jig 11 is rotated via the hinge portion 21 of the jig connecting member 12 so that the opposing edge portions 11c of the adjacent split core holding jigs 11 are in contact with each other (second step). Thereby, the split core arrangement device 50 is in a state in which the split core holding jigs 11 are arranged in a ring shape, and the split core 2 held by the split core holding jig 11 also has the yoke collar portion 4 as the outer peripheral portion. It will be in the state arrange | positioned at the cyclic | annular form which makes the front-end collar part 6 an inner peripheral part.

  The above steps are performed by the split core arrangement device 50, and the above steps are performed on an automated production line by moving the pallet 29 on which the split core holding jig 11 is placed on a conveyor or the like.

  Next, as shown in FIG. 7, the split core 2 held by the split core holding jig 11 placed on the mounting table 23 is moved by the pair of arms 24 a and 24 b of the split core take-out mechanism 13. Grab and hold. Then, the pair of arms 24a and 24b are moved upward in the drawing by the action of the drive mechanism 25, and the divided cores 2 are taken out from the divided core holding jig 11 in an annularly arranged state (third step).

  Next, as shown in FIG. 8, the yoke 1 is supported by the magnetic force of the magnet 27 b embedded in the yoke support portion 27 a of the split core insertion mechanism 14. The yoke support portion 27a is moved downward in the drawing by the action of the insertion drive mechanism 28, and the divided cores 2 arranged in an annular shape on the mounting table 26 are press-fitted into the inner periphery of the yoke 1 (fourth step). Thereby, the yoke 1 and the split core 2 are united, and the stator 10 is completed.

  According to the split core arrangement device 50 of the present embodiment, the adjacent split core holding jigs 11 are rotatably connected via the hinge portion 21 of the jig connecting member 12. Can be arranged in a row. Thereby, when accommodating the split core 2 in the split core holding jig 11, the process of changing the angle of the split core 2 according to the jig becomes unnecessary. Further, after the divided core 2 is held by the divided core holding jig 11, the divided core holding jig 11 is arranged in an annular shape by arranging the divided core in an annular shape via the hinge portion 21 of the jig connecting member 12. The split core 2 can be easily obtained.

  According to the stator manufacturing apparatus 100 and the stator manufacturing method of the present embodiment, the annularly arranged divided cores 2 obtained by the divided core arranging apparatus 50 are taken out from the divided core holding jig 11 and The stator 10 can be easily manufactured.

  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.

  The present invention can be applied to an apparatus for manufacturing a concentrated winding stator.

It is sectional drawing of the stator manufactured by the stator manufacturing apparatus 100 which is embodiment of this invention. 4 is a perspective view of a split core arrangement device 50. FIG. It is a perspective view of the split core arrangement | sequence apparatus 50 of the state which accommodated the split core in the split core holding jig in the 1st process. It is a top view of the split core arrangement | sequence apparatus 50 in the state of FIG. It is a side view of the split core arrangement | sequence apparatus 50 in the state of FIG. It is a perspective view of the split core arrangement | sequence apparatus 50 of the state which has arrange | positioned the split core holding jig in cyclic | annular form in a 2nd process. It is a figure which shows the division | segmentation core taking-out mechanism which performs the 3rd process in the stator manufacturing apparatus. It is a figure which shows the division | segmentation core insertion mechanism which performs the 4th process in the stator manufacturing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Stator manufacturing apparatus 50 Divided core arrangement | sequence apparatus 1 Yoke 2 Divided core 3 Coil 4 Yoke collar part 5 Teeth part 6 Tip collar part 7 Head part 7a Head body 7b U-shaped piece 8 Leg part 8a Support part 8b Bottom plate part 10 Stator 11, 11a, 11b Divided core holding jig 11c Divided core holding jig edge 11e Divided core holding jig back surface 12 Jig connecting member 13 Divided core take-out mechanism 14 Divided core insertion mechanism 15 Housing 16 Fixing plates 17a, 17b Projection Pins 18a, 18b Hole portion 19 Protruding portion 20 Dovetail groove 21 Hinge portion 22 Pin 23, 26 Mounting table 24 Grip mechanism 24a, 24b Arm 25 Drive mechanism 27 Support mechanism 27a Yoke support 27b Magnet 28 Insertion drive mechanism 29 Pallet

Claims (5)

In a split core arrangement device that annularly arranges a plurality of split cores around which a coil is wound,
A plurality of split core holding jigs each holding the plurality of split cores;
A connecting means for rotatably connecting the divided core holding jigs adjacent to each other;
A split core arrangement device characterized in that the plurality of split core holding jigs can be expanded and arranged in a row in a row. A fixing plate for fixing and arranging the plurality of split core holding jigs in a row;
By arranging the fixed plate integrally with the plurality of divided core holding jigs, the plurality of divided cores held by the divided core holding jig are arranged such that the yoke flange portion of each divided core is attached to the fixed plate. The split core array device according to claim 1, wherein the split core array device is arranged on a straight line along the line. Each of the split core holding jigs is fixed with a jig connecting member for connecting adjacent split core holding jigs,
The connecting means rotates a recess formed at one end of one of the adjacent jig connecting members, a protrusion formed at the other end, and fitted into the recess, and the recess and the protrusion. The split core array device according to claim 1 or 2, comprising a connecting member that is movably connected. In a stator manufacturing apparatus for a stator comprising an annular yoke, and a plurality of divided cores that are provided for each tooth on the inner periphery of the yoke and wound with a coil.
The split core array device according to any one of claims 1 to 3,
A split core take-out mechanism for taking out the plurality of split cores in an annularly arranged state from the plurality of split core holding jigs;
A stator manufacturing apparatus, comprising: a split core insertion mechanism that inserts the annularly arranged split cores into an inner periphery of the yoke. In a stator manufacturing method of a stator comprising an annular yoke and a plurality of divided cores provided around each tooth on the inner circumference of the yoke and wound with a coil.
Holding each of the plurality of split cores with a plurality of split core holding jigs arranged in a line;
The adjacent split core holding jigs are held by the plurality of split core holding jigs by bringing the opposing edges of the adjacent split core holding jigs into contact with each other by means of a connecting means for rotatably connecting the adjacent split core holding jigs. Arranging the plurality of divided cores in an annular shape;
Removing the plurality of divided cores from the plurality of divided core holding jigs in an annularly arranged state;
And a step of inserting the annularly arranged divided cores on the inner periphery of the yoke.

Images