JP7058454B2 - Winding device for split members and winding method thereof - Google Patents

Description

The present invention relates to a winding device for a split member in which a wire rod is continuously wound around a pair of split members provided separately, and a winding method thereof.

Conventionally, a stator of a rotary electric machine includes a cylindrical stator core having a plurality of teeth (magnetic poles) arranged radially and protruding in the inner diameter direction and a plurality of slots opened between them. Then, a winding around which the wire is wound is performed on each tooth, and a stator coil made of the wound wire is housed in each slot. As a method for manufacturing such a stator, there is known a method in which a stator core is divided in the circumferential direction for each tooth to form a plurality of divided cores to be divided members, and winding is performed on each of the plurality of divided cores.

In this method, the winding is easier and the number of turns to be wound around the teeth can be increased as compared with the case where the stator core is integrally formed in advance and protrudes toward the inner peripheral side and is wound around the teeth. Then, in this method, the stator is obtained by arranging the divided cores in which the windings are formed in an annular shape thereafter.

As a winding method to such a split core, as shown in FIGS. 23 and 24, a pair of split cores 3 and 4 are provided so that at least one of them can move in the axial direction of the spindle shaft 2, and as shown in FIG. 23. In addition, one of the split cores 3 is positioned away from the spindle shaft 2 from the other split core 4, the spindle shaft 2 is rotated, and the wire rod 5 is wound around the one split core 3, and the one split core is wound. After the winding to 3 is completed, as shown in FIG. 24, the other split core 4 is moved so as to be located away from the spindle shaft 2 from the one split core 3, and then the spindle shaft 2 is rotated to the other side. A method of winding the wire rod 5 around the divided core 4 of the above has been proposed (see, for example, Patent Document 1).

Further, as another method of winding the split core, a split core is provided radially at the tip of the spindle shaft so that the shaft cores intersect at a predetermined angle, and the shaft core of one of the split cores is provided on the spindle shaft. The spindle shaft is rotated according to the axis of the spindle shaft, the wire is wound around one of the split cores, and after the winding to the one split core is completed, the shaft core of the other split core is set to the shaft core of the spindle shaft. Then, a method of rotating the spindle shaft and winding the wire around the other split core has been proposed (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2006-94593 Japanese Unexamined Patent Publication No. 2013-118767

However, in the above-mentioned conventional winding method, a pair of split cores 3 and 4 are provided at the tip of a single spindle shaft, and the other split core is wound after winding on one of the split cores. Since the wire is drawn, the center of gravity of the pair of split cores is far from the axis of the spindle shaft, and the rotation speed of the spindle shaft that rotates the pair of split cores is increased to shorten the winding time. However, there was a problem that there was a limit to improving productivity.

Further, in order to improve productivity, it is conceivable to provide a plurality of spindle shafts and rotate them at the same time to wind the wire rod on a plurality of split cores at the same time. If a plurality of spindle shafts are provided, it is necessary to take a relatively large distance between the adjacent spindle shafts, which causes a problem that the winding device becomes large.

Further, when winding is completed on both one and the other split cores 3 and 4, the crossover 6 spanned between the split cores 3 and 4 differs depending on the stator to be obtained, and the crossover thereof is different. It would be convenient if the length of the wire 6 could be the desired length.

An object of the present invention is a winding device for a split member capable of shortening the time required for winding the crossover wire formed between a pair of split members and improving the productivity thereof while making the crossover wire a desired length. The purpose is to provide the winding method.

The winding device for the split member of the present invention is a winding device for continuously winding a wire rod around a pair of split members, and is a main member holder that supports one of the split members and a main member holder that rotates the main member holder. A rotating means, an auxiliary member holder provided facing the main member holder and supporting the other divided member, an auxiliary rotating means for rotating the auxiliary member holder in the same direction in synchronization with the rotation of the main member holder, and a main member . A holder moving mechanism configured to move one or both of the holder and the auxiliary member holder so that the distance between the main member holder and the auxiliary member holder facing the main member holder can be changed, and one that rotates together with the main member holder. It is equipped with a wire rod feeding means for feeding out the wire rod wound around the other split member that rotates together with the split member or the auxiliary member holder, and the holder moving mechanism changes the distance between the main member holder and the auxiliary member holder by driving. Equipped with a servo motor to make it .

The sub-member holder is provided coaxially with the main member holder , has a carry-in plate on which a pair of split members can be mounted, and the carry-in plate is moved so that one of the split members mounted on the carry-in plate faces the main member holder. It has a carry-in device that confronts the other split member to the sub-member holder, and a carry-out plate on which a pair of split members in which the wire is continuously wound can be mounted, and the wire is wound to face the main member holder. It is further preferable to further include a carrying-out device in which one dividing member and the wire rod are wound and the other dividing member facing the sub-member holder is mounted on the carry-out plate and carried out .

Further, the main rotating means consists of a main servomotor in which the main member holder is directly and coaxially attached to the rotating shaft, and the auxiliary rotating means is composed of an auxiliary servomotor in which the auxiliary member holder is directly and coaxially attached to the rotating shaft. It is more preferable that a plurality of main member holders are provided, and the same number of sub-member holders as the plurality of main member holders are provided facing each of the plurality of main member holders.

On the other hand, the winding method of the dividing member of the present invention is a winding method in which a wire rod is continuously wound around a pair of dividing members, and the main member holder supporting one of the dividing members is rotated to mainly wind the wire rod. The distance between the first winding process of winding around one dividing member that rotates with the member holder, and the distance between one dividing member supported by the main member holder and the other dividing member supported by the sub-member holder facing the main member holder. In a state where a pair of dividing members composed of one dividing member and the other dividing member are assembled, the process of matching the length of the crossover required between the pair of dividing members and facing the main member holder. A second winding process in which the auxiliary member holder that supports the other dividing member is rotated in the same direction and at the same speed in synchronization with the main member holder, and the wire rod is wound around the other dividing member that rotates together with the auxiliary member holder. And include.

In this second winding process, it is preferable to make the sub-member holder coaxial with the main member holder, and a carry-in plate on which a pair of split members can be mounted is used, and one of the split members is supported by the main member holder to support the main member holder. The carry-in process of supporting the other split member on the auxiliary member holder facing the cable is performed before the first winding step, and a carry-out plate capable of mounting a pair of split members in which the wire rod is continuously wound is used. It is preferable that the carrying-out step of removing the pair of wound split bobbins from the main member holder and the sub-member holder and discharging them is performed after the second winding step .

Further, the rotation of the main member holder is performed by rotating the rotation axis of the main servomotor in which the main member holder is directly and coaxially attached to the rotation axis, and the rotation of the sub-member holder is performed by the sub-member holder having the rotation axis. It is preferably performed by rotating the rotating shaft of the sub-servo motor directly and coaxially directly attached to the motor.

Further, using a plurality of main member holders, in the first winding process, the plurality of main member holders are rotated at the same time, and the wire rod is wound around one of the divided members supported by the plurality of main member holders, respectively, and the plurality of main members are wound. A plurality of sub-member holders are provided facing the member holders, and in the second winding process, the plurality of sub-member holders are simultaneously rotated in the same direction and at the same speed in synchronization with the plurality of main member holders. It is preferable to wind the wire around the other dividing member supported by the member holders.

In the winding device for the split member and the winding method thereof of the present invention, the main member holder that supports and rotates one of the split members and the sub-member holder that supports and rotates the other split member are separately provided. It is possible to align the center of gravity of the split members supported by them on the rotation axis of the primary and secondary member holders. Then, in the present invention, the primary and secondary member holders are rotated and wound together with the split members, but the rotation speed of the primary and secondary member holders is significantly increased as compared with the conventional case in which the center of gravity of the split members is not on the rotation axis. It is possible to increase the number and shorten the time required for winding.

Further, when the auxiliary member holder facing the main member holder is rotated, the auxiliary member holder is rotated in the same direction and at the same speed in synchronization with the main member holder, so that the split member and the auxiliary member holder supported by the main member holder are separated. It is possible to prevent the crossover wire generated between the supporting split members from being twisted, and if the auxiliary member holder is made coaxial with the main member holder, it is possible to prevent the crossover wire from swinging.

Further, although the crossover line spanned between the pair of dividing members differs depending on the stator to be obtained, the distance between the main member holder and the sub-member holder can be changed, and the distance can be set to one of the divided members. In a state where a pair of dividing members consisting of and the other dividing member are assembled, if the length of the crossover required between the pair of dividing members is matched, the winding member is wound on both the one and the other dividing member. When the wire is completed, it is avoided that the crossover wire becomes longer than necessary, and then the outer shape of the stator or the like obtained by arranging the pair of dividing members in an annular shape does not become large. ..

Further, if a plurality of main and sub-member holders are provided, and the wire rods are simultaneously wound around the split members supported by them by rotating them at the same time, winding can be performed on the plurality of split members at the same time. At this time, since the centers of gravity of the split members supported by the main and sub-member holders can be aligned on the rotation axis of the primary and sub-member holders, it is possible to bring a plurality of main and sub-member holders closer to each other as long as the split members do not interfere with each other. This makes it possible to improve productivity without increasing the size of the device.

Then, if the main and sub-member holders are rotated separately by the servomotors provided independently, the structure for rotating the main and sub-member holders can be simplified and the control thereof can also be performed. Can be facilitated. As a result, it is possible to improve the productivity of the device while avoiding further increase in size of the device.

FIG. 6 is a cross-sectional view taken along the line AA of FIG. 6 showing a winding device for the split member according to the embodiment of the present invention. FIG. 6 is a cross-sectional view taken along the line BB of FIG. It is a cross-sectional view taken along the line CC of FIG. FIG. 6 is a sectional view taken along line DD of FIG. FIG. 6 is a cross-sectional view taken along the line EE of FIG. It is a top view which shows the winding device of the split member of the embodiment of this invention. FIG. 6 is a cross-sectional view taken along the line FF of FIG. It is a top view shown by the arrow G of FIG. 7 of the carry-in plate in the carry-in device. It is a top view shown by the arrow H of FIG. 7 of the carry-out plate in the carry-out device. FIG. 8 is a sectional view taken along line KK of FIG. 8 showing a state in which a member holder is inserted into a split member mounted on a carry-in device. FIG. 8 is a sectional view taken along line LL of FIG. 8 showing a state in which the member holder is pressed against a movable piece to complete the insertion of the member holder into the divided member. FIG. 9 is a sectional view taken along line MM of FIG. 9 showing a state in which a split member around which a wire is wound is mounted on a carry-out device and a member holder is pulled out. It is a figure which shows the state which the wire rod seen from the direction indicated by the arrow J of FIG. 2 is gripped by a gripping device. It is a perspective view which shows the state which the split member is supported by a member holder. It is a perspective view which shows the state which the wire rod is wound around the pin of one of the split members. It is a perspective view corresponding to FIG. 15 which shows the state in which a wire rod is wound around one of the split members. It is a perspective view corresponding to FIG. 16 which shows the state which the wire rod is drawn from one split member to the other split member. It is a perspective view corresponding to FIG. 17 which shows the state which the wire rod is wound around the other division member. It is a perspective view corresponding to FIG. 18 which shows the state which the wire rod is wound around the pin of the other division member. It is a figure which looked at the obtained stator from the axial direction. It is a perspective view corresponding to FIG. 17 which shows the state which the wire rod is drawn from another one split member to the other split member. It is a perspective view corresponding to FIG. 21 which shows the state in which a wire rod is wound around another other dividing member. It is a perspective view which shows the state which the winding is made on one split core by the conventional method. FIG. 3 is a perspective view corresponding to FIG. 23 showing a state in which a winding is further formed on the other divided core by the conventional method.

Next, the best mode for carrying out the present invention will be described with reference to the drawings.

In the winding device of the present invention, a wire rod is continuously wound around a pair of dividing members, and the pair of splitting members wound by winding the wire rod are subsequently assembled together with other dividing members. It is used as a stator for rotary electric machines.

As shown in FIG. 14, the split bobbin 12 serving as a split member in this embodiment has a tubular body portion 12a, an outer peripheral side flange 12b integrally formed at both ends of the tubular body portion 12a, and an inner peripheral side. It is provided with a flange 12c. The outer peripheral side and inner peripheral side flanges 12b and 12c are rectangular frames extending outward along a direction orthogonal to the central axis of the tubular body portion 12a, and the outer peripheral side flange 12b is compared with the inner peripheral side flange 12c. It is said to be wide.

The split bobbin 12 to be the split member is manufactured by molding an insulating resin, and a pin 14 for entwining the wire rod 13 (FIG. 15) is erected on the outer peripheral side flange 12b in parallel with the axis of the stator 10. .. In the split bobbin 12, the wire rod 13 is wound around the tubular body portion 12a to form the coil 16 (FIG. 20).

The winding device 20 of the present invention that winds a split member such as the split bobbin 12 continuously winds the wire rod 13 on the split bobbin 12 which is a pair of split members, and this embodiment. In the above, the wire rod 13 shows a case where it is a round wire having a circular cross section having an insulating film formed on its surface.

As shown in FIG. 1, the winding device 20 of the split member includes a carry-in device 21 for carrying in the split bobbin 12 which is a split member, and a carry-out device 31 for carrying out the wound split bobbin 12. Here, three axes of X, Y, and Z orthogonal to each other are set, the carry-in and carry-out directions are set as the Y-axis, the direction orthogonal to the X-axis is set as the X-axis in the horizontal plane, and the vertical direction is set as the Z-axis. The device 20 will be described.

The winding device 20 has a base 20a, and a substrate 20b extends in the Y-axis direction so as to divide the upper surface into two in the X-axis direction at substantially the center of the horizontal upper surface of the base 20a in the X-axis direction. A rail 20c extends in the Y-axis direction on the upper edge of the substrate 20b.

As shown in detail in FIGS. 1 and 7, the carry-in device 21 includes a carry-in plate 22 movably mounted on the rail 20c, and a pulley 23 provided at one end and substantially in the center of the substrate 20b, respectively. A 23, a belt 24 hung around the pulleys 23, 23, and a servomotor 26 for circulating the belt 24 are provided.

The servomotor 26 is attached to the substrate 20b, and a circulation pulley 27 is provided on the rotating shaft 26a of the servomotor 26. The belt 24 hung around the pair of pulleys 23, 23 is also hung around the circulation pulley 27, and a part of the circulation belt 24 between the pair of pulleys 23, 23 is configured to be along the rail 20c. The substrate 20b is provided with a plurality of auxiliary pulleys 28 in which the circulation belt 24 is stretched so that a part of the circulation belt 24 is stretched along the rail 20c, and the circulation belt 24 is hung around the circulation pulley 27.

Then, when the servomotor 26 is driven to rotate the circulation pulley 27, the circulation belt 24 circulates between the pulley 23 provided at one end of the substrate 20b and the pulley 23 provided at the substantially center. A part of the belt 24 along the rail 20c is configured to be movable along the rail 20c in the longitudinal direction of the rail 20c.

The carry-in plate 22 is movably mounted on the rail 20c in a horizontal state, and as shown in FIG. 8, a holding piece 29 for holding the split bobbin 12 which is a split member is provided on the upper surface of the carry-in plate 22. A groove 29a for dropping the split bobbin 12 is formed in the holding piece 29, and the split bobbin 12 is dropped and held in the groove 29a.

In this embodiment in which the split member is a split bobbin 12, the holding piece 29 faces the outer peripheral flanges 12b of the pair of split bobbins 12 and 12 held by them, and has a cylindrical body portion 12a thereof. Is horizontal and coaxial in the width direction (X-axis direction) of the rail 20c, and is attached to the carry-in plate 22 at a predetermined interval in the width direction (X-axis direction) of the rail 20c.

Further, in this embodiment, when a pair of split bobbins 12 and 12 arranged horizontally in the width direction of the rail 20c are set as a set, the holding pieces 29 in the carry-in plate 22 are spaced apart from each other in the longitudinal direction of the rail 20c. It is assumed that 6 sets are provided and a total of 12 split bobbins 12 can be mounted, and the winding device 20 winds the 6 sets of split bobbins 12 at the same time.

Further, the carry-in plate 22 is provided with a push-in piece 30 for fitting the split bobbin 12 into the main member holder 41 described later. The push-in piece 30 includes a support piece 30a attached to the carry-in plate 22 adjacent to the holding piece 29 from the Y-axis direction, a coil spring 30b provided on the support piece 30a extending in the X-axis direction, and a coil spring thereof. A movable piece 30c urged outward from both sides of the support piece 30a in the X-axis direction by the support piece 30b is provided. Then, as shown in FIG. 11, when the split bobbin 12 comes into contact with the movable piece 30c and is pushed, the push-in piece 30 faces the center side of the support piece 30a against the urging force of the coil spring 30b. It is configured to be movable.

Returning to FIG. 7, a part of the carry-in plate 22 that moves along the rail 20c of the circulation belt 24 is attached to the carry-in plate 22. Therefore, when the servomotor 26 is driven and the belt 24 circulates, the carry-in plate 22 to which a part thereof is attached moves along the rail 20c, and a plurality of pairs held by the holding piece 29 of the carry-in plate 22. The split bobbin 12 of the above moves with the carry-in plate 22 so that it can be carried from one end of the substrate 20b to substantially the center of the substrate 20b shown by the broken line.

On the other hand, the carry-out device 31 for carrying out the split bobbin 12 after winding around which the wire rod 13 is wound is configured to have a target structure with the carry-in device 21 with the center of the substrate 20b as a symmetrical line. The corresponding member is shown as the code of the carry-in device 21 plus 10. As described above, the unloading device 31 is formed on the other half of the substrate 20b, and as shown in FIG. 9, the holding piece 39 provided on the upper surface of the unloading plate 32 has a split bobbin 12 after winding. The concave groove 39a for holding the above is formed, and the carry-in plate 22 is not provided with the one corresponding to the push-in piece 30 provided.

The holding piece 39 provided on the carry-out plate 32 of the carry-out device 31 is provided by arranging a pair of split bobbins 12 and 12 on which the wire rod 13 is continuously wound in the width direction of the rail 20c, and holding the pair. Similar to the carry-in device 21, the pieces 29 are provided at six locations in the longitudinal direction of the rail 20c at predetermined intervals.

Returning to FIG. 7, a part of the carry-out plate 32 that moves along the rail 20c of the circulation belt 34 is attached, and when the servomotor 36 is driven and the belt 34 circulates, the part is attached. The carry-out plate 32 moves along the rail 20c, and a plurality of pairs of wound split bobbins 12 held by the holding piece 39 of the carry-out plate 32 move together with the carry-out plate 32, and the substrate 20b shown by the broken line is shown. It is configured to transport from the center of the substrate to the other end of the substrate 20b.

Since the structure of the other carry-out device 31 is the same as that of the carry-in device 21, detailed description thereof will be omitted.

As shown in FIGS. 1 and 6, the winding device 20 for a split member of the present invention has a main member holder 41 that supports one split bobbin 12 in a pair of split bobbins, and a pair of split bobbins 12, 12. The sub-member holder 51 that supports the other split bobbin 12 is provided. The main member holder 41 and the sub-member holder 51 are provided so as to face each other with the substrate 20b interposed therebetween, and a main rotation means 42 for rotating the main member holder 41 and an auxiliary rotation means 52 for rotating the sub-member holder 51 are further provided. In this embodiment, since the six sets of the split bobbins 12 are wound at the same time, six main member holders 41 and six sub-member holders 51 are provided.

Since one split bobbin 12 and the other split bobbin 12 have the same structure, the main member holder 41 and the sub member holder 51 that support these split bobbins 12 have the same structure. Therefore, the structure will be described on behalf of the main member holder 41.

As shown in FIG. 14, the main member holder 41 is provided on the rod-shaped portion 41a into which the tubular body portion 12a of the split bobbin 12 is fitted and on the proximal end side of the rod-shaped portion 41a so as to expand its outer diameter. When the split bobbin 12 is fitted into the rod-shaped portion 41a from the inner peripheral side flange 12c side, the inner peripheral side flange 12c comes into contact with the rod-shaped portion 41a to prevent the tubular body portion 12a from further fitting into the rod-shaped portion 41a. It has a contact piece 41b and a locking piece 41c that keeps the inner peripheral side flange 12c in contact with the contact piece 41b.

A pair of locking pieces 41c are provided on the tip end side of the rod-shaped portion 41a, are deformable to be smaller than the inner diameter of the tubular body portion 12a, and exceed the inner diameter of the tubular body portion 12a in a state where the distance between them is widened. It is composed of. Therefore, as shown in FIG. 14A, when the tubular body portion 12a of the split bobbin 12 is fitted into the rod-shaped portion 41a, the pair of locking pieces 41c are deformed to be smaller than the inner diameter of the tubular body portion 12a. , The fitting is allowed, and as shown in FIG. 14 (b), the distance between the inner peripheral side flanges 12c and the contact piece 41b is expanded at the stage where the inner peripheral side flange 12c is in contact with the contact piece 41b, and the tubular body portion on the outer peripheral side flange 12b side is expanded. It is configured to be locked to the edge of 12a so that the inner peripheral side flange 12c maintains a state of being in contact with the contact piece 41b.

As shown in FIGS. 1 and 6, the main rotating means 42 and the sub-rotating means 52 for rotating the holders 41 and 51 are servomotors, respectively, and the servomotors 42 and 52 constituting the rotating means thereof are main. And as many as the number corresponding to the number of auxiliary member holders 41 and 51 are provided.

That is, the same number of main servomotors 42 as the main rotating means are prepared, and the rotating shafts 42a are arranged along the rail 20c so that the rotating shafts 42a are parallel to each other. It is provided on the main movable plate 43 on one side of the rail 20c in a state of facing toward.

Further, even in the sub-servomotor 52 which is the sub-rotating means, the same number as the number of the sub-member holders 51 are prepared, and the rotating shafts 52a are prepared along the rail 20c so that the rotating shafts 52a are parallel to each other. Is provided on the sub-movable plate 53 in a state of facing the rail 20c. The sub-movable plate 53 is provided so as to sandwich the rail 20c together with the main movable plate 43 provided with the main member holder 41.

The main member holder 41 is directly and coaxially attached to the rotating shaft 42a of the main servomotor 42, and the auxiliary member holder 51 is directly and coaxially attached to the rotating shaft 52a of the subservomotor 52 facing the main member holder 41. In this embodiment, the main moving means 61 for moving the main movable plate 43 provided with the plurality of main servomotors 42 as the main rotating means, and the plurality of sub-servo motors 52 as the sub-rotating means are provided. A sub-moving means 71 for moving the sub-movable plate 53 is provided.

As shown in FIGS. 4 and 5, the main and sub moving mechanisms 61 and 71 in this embodiment have the same structure, and these moving means 61 and 71 horizontally have their main and sub movable plates 43 and 53. The horizontal moving means 62, 72 for moving in the direction (X-axis direction) and the vertical moving means 63, 73 for moving the horizontal moving means 62, 72 together with the main and sub movable plates 43, 53 are provided.

The vertical moving means 63, 73 includes a pedestal 63b, 73b provided on the base 20a, a plurality of vertical rods 63c, 73c provided so as to be able to move up and down through the pedestals 63b, 73b in the vertical direction, and a vertical rod. The lifts 63d and 73d provided at the lower ends of the 63c and 73c, the servomotors 63e and 73e provided on the lifts 63d and 73d with the rotation axis facing upward in the vertical direction, and the servomotors 63e and 73e provided coaxially with the rotation shaft. It has ball screws 63f and 73f.

Holes 63a, 73a extending vertically from the lower surface to insert the ball screws 63f, 73f are formed in the pedestals 63b, 73b, and a female screw material screwed into the ball screws 63f, 73f is formed at the lower ends of the holes 63a, 73a. 63h and 73h are attached. Elevating horizontal plates 63g and 73g are provided at the upper ends of the vertical rods 63c and 73c, and horizontal moving means 62 and 72 are provided on the elevating horizontal plates 63g and 73g.

The horizontal moving means 62, 72 have rails 62d, 72d extending in the X-axis direction on the lower surfaces of the main and sub movable plates 43, 53, and rotating shafts 62a, 72a horizontally on the elevating horizontal plates 63g, 73g. Servo motors 62b, 72b provided so as to be parallel to the rails 62d, 72d, ball screws 62c, 72c provided coaxially with the rotating shafts 62a, 72a, and mounted on the front surface of the elevating horizontal plate 63g, 73g. It has blocks 62e and 72e on which rails 62d and 72d are movably mounted.

Female screw members 62f and 72f screwed to the ball screws 62c and 72c are attached to the main and sub movable plates 43 and 53, and when the servomotors 62b and 72b are driven to rotate the ball screws 62c and 72c, the rails 62d and 72d and The main and sub movable plates 43 and 53 mounted on the elevating horizontal plates 63g and 73g via the blocks 62e and 72e are configured to be movable in the longitudinal direction (X-axis direction) of the ball screws 62c and 72c.

Therefore, the moving main and sub movable plates 43 and 53 are separated from the rail 20c from the width direction (X-axis direction) of the rail 20c in the loading and unloading devices 21 and 31, and the split bobbin 12 is mounted substantially in the center of the rail 20c. When the main and sub movable plates 43 and 53 approach the rail 20c in the presence of the carried-in plate 22, the main and sub members provided on the main and sub movable plates 43 and 53 via the servomotors 26 and 36. As shown in FIG. 10, the rod-shaped portions 41a and 51a of the holders 41 and 51 enter the tubular body portion 12a of the split bobbin 12 and are configured to lock the split bobbin 12.

On the other hand, as shown in FIG. 12, when the wound split bobbin 12 is locked to the main and sub member holders 41 and 51, the carry-out plate 32 in the carry-out device 31 is present at substantially the center of the rail 20c. When the main and sub movable plates 43 and 53 (FIGS. 4 and 5) in which the split bobbin 12 is located are lowered, the main and sub member holders 41 and 51 are also shown by the solid arrows in FIG. By descending, the wound split bobbin 12 can be held by the holding piece 39 in the carry-out plate 32, and as shown by the broken line arrow, when the main and sub member holders 41 and 51 are separated from the rail 20c, The rod-shaped portions 41a and 51a of the main and sub-member holders 41 and 51 can be pulled out from the tubular body portion 12a of the split bobbin 12.

Further, as shown in FIG. 1, by providing the main moving means 61 and the sub-moving means 71, the winding device 20 can move both the main member holder 41 and the sub-member holder 51. The distance between the main member holder 41 and the sub-member holder 51 facing the main member holder 41 can be changed.

As shown in FIG. 4, it is assumed that the elevating horizontal plate 63g is provided at the upper end of the vertical rod 63c in the main moving means 61 via the elevating block 64, and as shown in FIG. 5, the vertical in the sub moving means 71. It is assumed that the elevating horizontal plate 73g is directly provided at the upper end of the rod 73c without providing such an elevating block 64. Then, it is assumed that the elevating block 64 shown in FIG. 4 is provided with the lower gripping device 100 described later.

As shown in FIG. 1, this winding device 20 pays out a wire rod 13 wound around one split member 12 that rotates with the main member holder 41 and the other split member 12 that rotates with the auxiliary member holder 51. The operation means 81 is provided. The wire rod feeding means 81 in this embodiment has a nozzle 82 for feeding out the wire rod 13 wound around one or the other split bobbin 12, and a nozzle moving mechanism 83 configured to move the nozzle 82 in a horizontal plane. And.

As shown in FIGS. 1 to 3, the nozzle 82 in this embodiment has a tubular body 82a through which the wire rod 13 can penetrate, and an angle member 82b in which the tubular body 82a is provided at an end thereof. The number equal to the number of member holders 41 is prepared. In the plurality of nozzles 82, the tubular body 82a extends straight in the vertical direction so as to be orthogonal to the rod-shaped portion 41a of the main member holder 41, and the other end of the angle member 82b is spaced apart from the moving table 84 in the Y-axis direction. Is provided by opening.

As shown in FIGS. 1 and 3, the nozzle moving mechanism 83 is composed of a combination of the moving table 84 and X-axis and Y-axis direction telescopic actuators 85 and 86 for moving the moving table 84 in a horizontal plane. To. A pair of columns 87 are erected on the base 20a so as to sandwich the main movable plate 43 provided with a plurality of main member holders 41 from both sides in the Y-axis direction, and the X-axis direction expansion / contraction actuator 85 is the base 20a. It is provided at the upper end of the support column 87 so as to extend in the X-axis direction.

The X-axis direction expansion / contraction actuator 85 is screwed into the ball screw 85b, which is rotationally driven by the servomotor 85a provided at the end of the housing 85d, and moves in parallel in the longitudinal direction in front of the housing 85d. It is composed of a follower 85c and the like.

Above the main movable plate 43, the upper plate 86a is erected on the driven element 85c in the pair of X-axis direction expansion / contraction actuators 85. The Y-axis direction telescopic actuator 86 is formed on the upper plate 86a, a pair of rails 86b extending in the Y-axis direction and spaced apart from each other in the X-axis direction on the upper surface of the upper plate 86a, and a rail 86b on the upper surface of the upper plate 86a. A ball screw 86d provided in parallel and a servomotor 86e for rotating the ball screw 86d are provided.

The moving table 84 provided with the nozzle 82 is movably mounted on a pair of rails 86b, and a female screw member 86f screwed to the ball screw 86e is attached to the moving table 84. Therefore, when the servomotor 86e is driven and the ball screw 86e is rotated, the moving table 84 provided with the nozzle 82 is configured to be movable in the Y-axis direction with respect to the upper plate 86a.

Each of the servomotors 85a, 86e in each of the telescopic actuators 85, 86 is connected to a control output of a controller (not shown) that controls the movement of the nozzle 82. Then, the nozzle moving mechanism 83 can arbitrarily move the nozzle 82 provided on the moving table 84 together with the moving table 84 in the horizontal plane in the X-axis direction and the Y-axis direction based on a command from a controller (not shown). It is composed.

Although not shown, the wire rod 13 is wound around a reel, and this reel serves as a supply source for the wire rod 13. This reel shall be placed in another place adjacent to the device 20. Although not shown, a tension device is provided above the nozzle 82 to apply a predetermined tension to the wire rod 13 supplied from the reel to the nozzle 82.

It is assumed that the wire rod 13 unraveled from a reel (not shown) is guided by the tension device, and the wire rod 13 that has passed through the tension device penetrates the nozzle 82. Here, reference numeral 88 in FIGS. 1 and 2 indicates a turning pulley 88 that turns the wire rod 13 that has passed through a tension device (not shown) and passes it through the tubular body 82a in the nozzle 82. Then, although the wire rod 13 that has passed through the nozzle 82 is subsequently wound around the dividing member 12, the moving table 84 provided with the nozzle 82 grips the wire rod 13 that has passed through the nozzle 82 on the upper side. The device 90 is provided.

The upper gripping device 90 in this embodiment includes a locking cylinder 92 whose base end is attached to a lifting rod 91 parallel to the moving table 84. As shown in FIG. 13, a locking inner rod 93 is rotatably inserted into the locking cylinder 92, and a straight holding piece 92a capable of holding the wire rod 13 is formed at the tip of the locking cylinder 92. On the other hand, at the tip of the locking inner rod 93, a curved holding piece 93a that holds the wire rod 13 together with the straight holding piece 92a is formed. The curved holding piece 93a is formed so as to deviate from the rotation center of the locking inner rod 93, and the gap between the curved holding piece 93a and the straight holding piece 92a can be changed by the rotation of the locking inner rod 93 with respect to the locking cylinder 92. It is composed of.

Therefore, as shown in FIG. 13B, the gap between the curved holding piece 93a and the straight holding piece 92a is widened so that the wire 13 can pass through the gap, so that the wire 13 can be inserted through the gap. As shown in (a), by rotating the locking inner rod 93 in that state to reduce the gap between the curved holding piece 93a and the straight holding piece 92a, the nozzle is provided by the curved holding piece 93a and the straight holding piece 92a. It is configured to grip the wire rod 13 that has passed through 82.

As shown in FIGS. 2 and 3, elevating cylinders 94 with the movers 94a in the vertical direction are provided on both sides of the moving table 84 in the Y-axis direction, and the moving cylinders 94 move up and down the moving cylinders 94a. The rod 91 is erected. The locking cylinder 92 is attached to the elevating rod 91 so as to be parallel to the tubular body 82a of the nozzle 82, and the tip of the locking cylinder 92 has a tubular shape in the nozzle 82 with the elevating rod 91 lowered by the elevating cylinder 94. The elevating cylinder 94 is attached to the moving table 84 so as to have a height substantially equal to the tip of the body 82a.

The mover 94a of one of the elevating cylinders 94 is provided with a rotating cylinder 95 for rotating the locking inner rod 93 inserted through the locking cylinder 92. The operating rod 96 is provided on the elevating rod 91 so as to be movable in parallel and in the longitudinal direction, and one end of the operating rod 96 is connected to the haunting rod 95a of the rotating cylinder 95. The locking inner rod 93 and the operating rod 96 are connected by the link mechanism 97, and when the rod 95a of the rotating cylinder 95 appears and disappears and the operating rod 96 is moved in the longitudinal direction, the locking inner rod 93 is connected via the link mechanism 97. Is configured to rotate.

As shown in FIG. 4, the elevating block 64 provided at the upper end of the vertical rod 63c in the main moving means 61 is provided with a rod 65 extending in the X-axis direction so as to be movable in the longitudinal direction, and the rod 65 on the nozzle 82 side. A front end plate 66 is provided at the end of the rod. The elevating block 64 is provided with a ball screw 67 parallel to the rod 65, and a female screw body 68 screwed to the ball screw 67 is provided on the rod 65. The elevating block 64 is provided with a servomotor 69 for rotating the ball screw 67. When the ball screw 67 is rotated, the female screw body 68 screwed to the servomotor 69 moves together with the rod 65 to reciprocate the front end plate 66 in the X-axis direction. Possible to be configured.

Further, the front end plate 66 is provided with a lower gripping device 100 for gripping the wire rod 13 from the dividing member 12. The lower gripping device 100 has the same structure as the upper gripping device 90 described above, and has a locking cylinder 102 having a straight holding piece 102a formed at the upper end and a locking cylinder 102 having a curved holding piece 103a formed at the upper end. A rod 103 is provided.

As shown in FIGS. 1 and 4, a horizontal rail 75 extending in the Y-axis direction and a ball screw 76 are provided in parallel on the front surface of the front end plate 66 facing the rail 20c in the carry-in / carry-out devices 21 and 31. A moving plate 77 parallel to the front end plate 66 is movably mounted on the horizontal rail 75, and a female screw body 78 screwed to the ball screw 76 is attached to the moving plate 77. At the end of the front end plate 66 in the Y-axis direction, a support piece 74 projecting toward the rail 20c in the carry-in / carry-out devices 21 and 31 is provided, and the support piece 74 has a servomotor 79 for rotating the ball screw 76. Can be installed.

Therefore, when the servomotor 79 is driven and the ball screw 76 is rotated, the moving plate 77 provided in parallel with the front end plate 66 is configured to be movable in the Y-axis direction together with the female screw body 78.

As shown in FIGS. 1 and 2, on both sides of the moving plate 77 provided in parallel with the front end plate 66 in the Y-axis direction, the pivot pieces 104 projecting toward the rails 20c in the carry-in / carry-out devices 21 and 31. Are provided respectively. As shown in FIG. 2, a rotating body 105 that rotates around the Y axis is erected on the pair of pivot pieces 104, and an actuator that rotates the rotating body 105 is installed on the pair of pivot pieces 104. 106 are provided respectively.

The locking cylinder 102 in the lower gripping device 100 is attached to the rotating body 105 in parallel with each other, and the actuator 106 has the tip of the locking cylinder 102 in the lower gripping device 100 upward as shown by the solid line in FIG. As shown by the alternate long and short dash line in FIG. 1, the rotating body 105 is configured to rotate within a range of 180 degrees between the first position facing and the second position where the tip of the locking cylinder 102 faces downward. To.

As shown in FIG. 2, an operating rod 109 is movably attached to the rotating body 105 in the longitudinal direction of the rotating body 105, and the locking inner rod 103 and the operating rod 109 inserted through the locking cylinder 102 are It is connected by a link mechanism 107 that rotates the locking inner rod 103. Then, one support piece 104 is provided with a rotation cylinder 108 for moving the operation rod 109 and actually rotating the locking inner rod 103 via the link mechanism 107.

Then, at the first position where the tip of the locking cylinder 102 faces upward, the lower gripping device 100 expands the gap between the curved holding piece 103a and the straight holding piece 102a as shown in FIG. 19, and the wire rod 13 By allowing the wire rod 13 to pass through the gap, and rotating the locking inner rod 103 in that state to reduce the gap between the curved holding piece 103a and the straight holding piece 102a, the curved holding piece The wire rod 13 from the split bobbin 12, which is a split member, is configured to be gripped by the 103a and the straight holding piece 102a.

Next, a winding method of the split member in the present invention using such a winding device will be described.

The winding method of the split member is a winding method in which the wire rod 13 is continuously wound around the pair of split members 12, 12, and the wire rod is rotated by rotating the main member holder 41 that supports one of the split members 12. The first winding process in which the 13 is wound around one of the split members 12 that rotates together with the main member holder 41, and the sub-member holder 51 facing the main member holder 41 and supporting the other split member 12 is referred to as the main member holder 41. This method includes a second winding step of synchronously rotating the wire rod 13 in the same direction at the same speed and winding the wire rod 13 around the other split member 12 that rotates together with the auxiliary member holder 51.

Although each step will be described in detail below, in the description shown below, the split bobbin 12 constituting the split core type stator 10 (FIG. 20) is used as the split member, and the split bobbin 12 is required before the first winding step. After the loading process of preparing the number of bobbins and supporting them on the main and auxiliary member holders 41 and 51, and the discharging process of removing the wound split bobbin 12 from the main and auxiliary member holders 41 and 51 after the second winding process. Indicates the case where

Further, in the wire rod 13 used for winding, the wire rod 13 is wound around a reel (not shown) and used as a supply source of the wire rod 13, and the wire rod 13 unraveled from the reel (not shown) is guided to a tension device, and the tension (not shown) is provided. It is assumed that the wire rod 13 that has passed through the device is penetrated by the nozzle 82. Then, as shown in FIG. 2, the wire rod 13 that has passed through the nozzle 82 is gripped by the upper gripping device 90 to prepare for winding.

<Bring-in process>
In this carry-in step, first, a pair of split bobbins 12 and 12 that are assembled as the stator 10 (FIG. 20) and are adjacent to each other are prepared. Limited to the pair of split bobbins 12 and 12 that are adjacent in the assembled state is the crossover line 16a that will exist between the pair of split bobbins 12 and 12 that are so adjacent in the assembled state (FIG. 20). ) To the desired length.

In this embodiment, as shown in FIG. 20, a case where the crossover wire 16a is drawn out from the outer peripheral side flange 12b of the split bobbin 12 is shown, and in order to use the winding device 20 described above, the pair of split bobbins 12, 12 As a set, winding is performed on 6 sets of split bobbins 12. Therefore, as shown in FIG. 8, the six sets of split bobbins 12 are opposed to each other on the outer peripheral side flange 12b side, and the six sets of split bobbins 12 are mounted on the carry-in plate 22.

In this mounting, the carry-in plate 22 is positioned at one end of the rail 20c, and in that state, a total of 12 split bobbins 12 are dropped into the grooves 29a of the holding pieces 29 in the carry-in plate 22 to be held.

After that, the servomotor 26 in the transport device 21 shown in FIG. 7 is driven to circulate the belt 24, and the carry-in plate 22 to which a part of the belt 24 is attached is moved along the rail 20c, and the carry-in plate 22 is moved. Together with the plurality of pairs of split bobbins 12 held by the holding piece 29, the carry-in plate 22 is carried in from one end of the substrate 20b to substantially the center of the substrate 20b shown by the broken line.

After the carry-in plate 22 on which the split bobbin 12 is mounted reaches substantially the center of the rail 20c, the main and sub movable plates 43 and 53 are moved by the main and sub moving means 61 and 71 shown in FIG. 1, respectively, and the main and sub movable plates 43 and 53 are moved. The main and sub-member holders 41, 51 provided on the sub-movable plates 43, 53 via the servomotors 26, 36 are brought close to the carry-in plate 22, and their rod-shaped portions 41a, as shown by the solid line arrows in FIG. The 51a is brought into the tubular body portion 12a of the split bobbin 12 mounted on the carry-in plate 22.

As shown in FIG. 14, when the rod-shaped portion 41a is approaching, a pair of locking pieces 41c provided on the tip end side of the rod-shaped portion 41a are deformed to be smaller than the inner diameter of the tubular body portion 12a to allow the entry. .. Then, as shown in FIG. 14B, when the inner peripheral side flange 12c abuts on the abutting piece 41b, the distance between the pair of locking pieces 41c is widened, and the cylinder on the outer peripheral side flange 12b side. The state in which the inner peripheral side flange 12c is in contact with the contact piece 41b by being locked to the end edge of the cylindrical body portion 12a is maintained.

After the rod-shaped portions 41a and 51a have entered the tubular body portion 12a, the main and sub-member holders 41 and 51 are raised in the Z-axis direction as shown by the broken line arrow in FIG. Remove the split bobbin 12.

At this time, if the rod-shaped portions 41a and 51a do not sufficiently enter the tubular body portion 12a, the split bobbin 12 is brought into contact with the pushing piece 30 as shown by the solid line arrow in FIG. The 41a and 51a are further advanced into the tubular body portion 12a, and the inner peripheral side flange 12c is surely brought into contact with the contact pieces 41b and 51b. At this time, even if the split bobbin 12 comes into excessive contact, the movable piece 30c with which the split bobbin 12 comes into contact moves toward the center side of the support piece 30a against the urging force of the coil spring 30b, so that the split bobbin Damage to the split bobbin 12 due to excessive contact of the 12 will be avoided.

The carry-in plate 22 from which all the split bobbins 12 have been removed then returns to one end side of the rail 20c and stands by.

<First winding process>
In this step, the main member holder 41 that supports one of the split members 12 is rotated to wind the wire rod 13 around the one split member 12 that rotates together with the main member holder 41.

At the time of this winding, as shown in FIG. 15, the nozzle 82 is circulated around the pin 14 provided on the outer peripheral side flange 12b of the split bobbin 12 which is one of the split members, and is fed out from the nozzle 82 to grip the upper side. The wire rod 13 whose tip is gripped by the device 90 is entwined with the pin 14. Here, the nozzle 82 is moved by the nozzle moving mechanism 83 (FIG. 1), and after the entanglement of the wire rod 13 with the pin 14 is completed, the upper gripping device 90 is separated from the pin 14 as shown by a solid arrow. Then, the wire rod 13 in the meantime is cut in the vicinity of the pin 14 (marked with ▲ in FIG. 15).

After that, the tip of the nozzle 82 is made to face the tubular body portion 12a of one of the split bobbins 12, and the wire rod 13 extending from the pin 14 to the nozzle 82 is pulled into the tubular body portion 12a, and in that state, the main movable plate 43, A servomotor 26 (FIG. 6) provided in 53 is driven, and as shown by the solid line arrow in FIG. 16, the main member holder 41 is rotated together with one of the split bobbins 12 locked therein. In this way, the wire rod 13 unwound from the nozzle 82 is wound around the tubular body portion 12a of the split bobbin 12 that rotates about the X-axis as the center of rotation.

During this winding, the nozzle movement mechanism 83 (FIG. 1) reciprocates the nozzle 82 with respect to one of the split bobbins 12 in the X-axis direction, and continuously moves the nozzle 82 from a reel (not shown) to the nozzle 82 via a tension device. The wire rod 13 to be unwound is aligned and wound around one of the split bobbins 12, and in the vicinity of the outer periphery thereof, a coil 16 in which the windings are concentrated on the outer peripheral side flange 12b side is formed. After such a coil 16 is obtained, the rotation of one of the split bobbins 12 is stopped to end the first winding process.

<Second winding process>
Next, in this step, the auxiliary member holder 51 facing the main member holder 41 and supporting the other split member, the split bobbin 12, is rotated in the same direction and at the same speed in synchronization with the main member holder 41 to rotate the wire rod. 13 is wound around a split bobbin 12, which is the other split member that rotates together with the auxiliary member holder 51.

At the time of this winding, the main and sub member holders 41 and 51 are moved by the main and sub moving means 61 and 71 (FIG. 1), and as shown in FIG. 17, the pair of split bobbins 12 and 12 are moved in the X-axis direction. A pair of splits are made coaxial and the distance L between the outer peripheral flanges 12b of the split bobbins 12 is the length of the crossover line 16a (FIG. 20) between the adjacent split bobbins 12 in the assembled state. Position the bobbins 12 and 12.

After that, the nozzle 82 facing the one split bobbin 12 in the first winding step is moved so that the tip of the nozzle 82 faces the cylindrical body portion 12a in the other split bobbin 12, thereby causing one of them. The wire rod 13 drawn from the split bobbin 12 is pulled into the tubular body portion 12a of the other split bobbin 12 (FIG. 17). The movement of the nozzle 82 is performed by the nozzle movement mechanism 83 (FIG. 1), whereby a crossover line 16a having a desired length is formed by the wire rod 13 between the one split bobbin 12 and the other split bobbin 12.

After that, the servomotors 42 and 52 (FIGS. 1 and 6) provided on the main and sub movable plates 43 and 53 are driven, respectively, without changing the distance L between the main and sub member holders 41 and 51. The member holder 51 is rotated together with the main member holder 41. In the rotation of the sub-member holder 51, as shown in FIG. 18, the wire rod 13 fed out from the nozzle 82 is rotated in the same direction and at the same speed in synchronization with the main member holder 41, and the sub-member holder 51 is rotated. It is wound around the tubular body portion 12a of the other split bobbin 12 that rotates together with it. By rotating in the same direction at the same speed in this way, the wire rod 13 is connected to the other while preventing the crossover wire 16a formed between the other split bobbin 12 and the one split bobbin 12 from being twisted. It is wound around the split bobbin 12.

At this time, by making the relative positional relationship between the other split bobbin 12 and one split bobbin 12 invariant, the crossover line 16a formed between the other split bobbin 12 and the one split bobbin 12 is formed. Prevent it from being stretched. Further, since the axis of the other split bobbin 12 is aligned with the axis of the one split bobbin 12, it is possible to prevent the crossover line 16a from swinging with respect to the split bobbin 12.

During this winding, the nozzle moving mechanism 83 reciprocates the nozzle 82 with respect to the other split bobbin 12 in the X-axis direction, and the wire rod 13 continuously unwound from the nozzle 82 is reciprocated with respect to the other split bobbin 12. A coil 16 is formed in which the windings are aligned and wound around the outer circumference 12 and the windings are concentrated on the outer peripheral side flange 12b side in the vicinity of the outer circumference thereof. After such a coil 16 is obtained, the rotation of the other split bobbin 12 is stopped at the same time as the rotation of the one split bobbin 12.

After the winding is completed, as shown in FIG. 19, the nozzle 82 is circulated around the pin 14 provided on the outer peripheral side flange 12b of the split bobbin 12 which is the other split member, and the nozzle 82 is newly circulated. The unwound wire rod 13 is entwined with the pin 14. After the entanglement of the wire rod 13 with the pin 14 is completed, the wire rod 13 extending from the pin 14 to the nozzle 82 is gripped by the lower gripping device 100, and the lower gripping device 100 is separated from the pin 14 so as to be in between. The wire rod 13 is cut in the vicinity of the pin 14 (marked with ▲ in FIG. 19) to end this second winding step.

In this way, the coil 16 is made independent from the nozzle 82, and the windings of both the pair of split bobbins 12 and 12 are completed, so that the coil 16 is connected to the pair of split bobbins 12 and 12 via the crossover wire 16a. Get 16.

The wire rod 13 extending from the nozzle 82 to the lower gripping device 100 is then gripped by the upper gripping device 90 as shown in FIG. 2 to prepare for the next winding.

<Carrying process>
In this step, the pair of wound split bobbins 12, 12 are removed from the main and sub member holders 41, 51 and discharged.

More specifically, as shown in FIG. 12, at the end of winding, the wound split bobbin 12 is locked to the main and auxiliary member holders 41 and 51. Therefore, the carry-out plate 32 in the carry-out device 31 is moved to substantially the center of the rail 20c, and the wound split bobbin 12 is positioned above the carry-out plate 32. Then, the main and sub movable plates 43 and 53 (FIG. 1) are lowered together with the main and sub member holders 41 and 51 as shown by solid arrows, and the wound split bobbin 12 is attached to the holding piece 39 in the carry-out plate 32. Hold it.

The spacing between the holding pieces 39 in FIG. 12 indicates a case where the spacing between the pair of split bobbins 12 and 12 connected via the crossover line 16a is equal to each other, and the wound split bobbins 12 are held by the holding pieces 39. Even if it is made to do so, it is assumed that the crossover line 16a is prevented from being stretched.

After the wound split bobbin 12 is held by the holding piece 39, the main and sub movable plates 43 and 53 provided with the main and sub member holders 41 and 51 are railed as shown by the broken line arrows in FIG. The rod-shaped portions 41a and 51a of the main and auxiliary member holders 41 and 51 are pulled out from the split bobbin 12 so as to be horizontally separated from the 20c in the X-axis direction.

As shown in FIG. 9, after the wound split bobbin 12 is held by the holding piece 39, the servomotor 36 in the unloading device 31 shown in FIG. 7 is driven to circulate the belt 34, and a part thereof. The carry-out plate 32 to which the Move with and carry it out.

The pair of split bobbins 12, 12 carried out together with the carry-out plate 32 are subsequently removed from the carry-out plate 32 and moved to the next process.

When the split bobbin 12 constituting the split core type stator 10 (FIG. 20) is used, in the next step, the pair of split bobbins 12 and 12 having the coil 16 continuous via the crossover line 16a is the crossover line 16a. They are arranged in an annular shape together with the other split bobbins 12 in a state of being connected in a circle, and as shown in FIG. 20, they are connected and fixed to each other to form a stator 10.

Since the coils 16 wound around the pair of split bobbins 12 and 12 are connected by a crossover wire 16a having a desired length, the work of newly connecting the coils 16 becomes unnecessary. By obtaining the crossover line 16a having such a desired length, it is possible to facilitate the arrangement of the crossover line 16a after the pair of split bobbins 12, 12 are arranged in an annular shape. Therefore, it is possible to prevent the crossover line 16a from becoming longer than necessary, prevent the outer shape of the obtained stator 10 from becoming large, and obtain a relatively inexpensive stator 10.

Then, in the winding device 20 of the dividing member and the winding method thereof of the present invention, the main member holder 41 that supports and rotates one dividing member 12 and the auxiliary member holder that supports and rotates the other dividing member 12. Since the 51s are provided separately, it is possible to align the centers of gravity of the split members 12 supported by the primary and secondary member holders 41 and 51 on the rotation axes of the holders 41 and 51.

Then, the primary and secondary member holders 41 and 51 are rotated and wound together with the split member 12, respectively, but the primary and secondary member holders 41 and 51 are wound as compared with the conventional case in which the center of gravity of the split member 12 is not on the rotation axis. It is possible to significantly increase the rotation speed and shorten the time required for winding.

Further, when the auxiliary member holder 51 facing the main member holder 41 is rotated, the auxiliary member holder 51 is rotated in the same direction and at the same speed in synchronization with the main member holder 41, so that the split member supported by the main member holder 41 is supported. The crossover line 16a generated between the 12 and the split member 12 supported by the sub-member holder 51 is prevented from being twisted, and if the sub-member holder 51 is made coaxial with the main member holder 41, the crossover line 16a swings. Such things can also be avoided.

Further, although the crossover line 16a spanned between the pair of split members 12 and 12 differs depending on the stator 10 to be obtained, the distance between the main member holder 41 and the sub-member holder 51 can be changed between the main member and the sub-movement. Since the devices 61 and 71 are provided, the length of the crossover line 16a formed between the pair of split bobbins 12 and 12 is desired by changing and adjusting the distance between the main member holder 41 and the sub member holder 51. Can be length. Then, in a state where winding is completed on both one and the other dividing members 12, 12 it is avoided that the crossover wire 16a becomes longer than necessary, and then the pair of dividing members 12, 12 are combined. It is also possible to prevent the outer shape of the stator 10 obtained by arranging them in an annular shape from becoming large.

Further, since a plurality of main and sub-member holders 41 and 51 are provided, they are rotated at the same time, and the wire rod 13 is simultaneously wound around the split member 12 supported by them, the wire rod 13 is wound around the plurality of split members 12 at the same time. Can be done. For example, as shown in this embodiment, if the winding is performed simultaneously on the six sets of dividing members 12 required for one stator 10 in one winding, the productivity of the stator 10 is significantly improved. Can be made to.

Further, even if a plurality of main and sub-member holders 41 and 51 are provided in this way, the centers of gravity of the split members 12 supported by the primary and sub-member holders 41 and 51 are aligned on the rotation axis of the primary and sub-member holders 41 and 51. A plurality of main and sub-member holders 41 and 51 can be brought closer to each other to the extent that they do not interfere with each other. As a result, the winding device 20 for the split member of the present invention does not become larger than the conventional device provided with a plurality of spindle shafts, and its productivity can be improved.

Since the servomotors provided separately and independently are used as the main and sub-rotating means 42 and 52 for rotating the main and sub-member holders 41 and 51, the structure for rotating the main and sub-member holders 41 and 51 Can be simplified and its control can be facilitated. As a result, the winding device 20 for the split member of the present invention can shorten the time required for the winding and improve the productivity thereof while avoiding further increase in size.

In the above-described embodiment, the case where the split member is the split bobbin 12 has been described, but as long as the main and sub member holders 41 and 51 can support the split member, the bobbin is pre-attached to the core of the split member. It may be a split core.

Further, in the above-described embodiment, in order to draw the crossover line 16a from the outer peripheral side flange 12b, the outer peripheral side flanges 12b of the pair of dividing members 12, 12 are opposed to each other, and the pair of divided members 12, 12 are mainly and sub. The case of supporting the member holders 41 and 51 has been described. However, when the crossover line 16a is pulled out from the inner peripheral side flange 12c, the inner peripheral side flanges 12c in the pair of dividing members 12 and 12 are opposed to each other, and the pair of divided members 12 and 12 are used as the main and sub member holders 41. , 51 may be supported to form a crossover line 16a between the facing inner peripheral side flanges 12c.

Further, in the above-described embodiment, the case where the crossover line 16a having a desired length is formed by the wire rod 13 between the one split bobbin 12 and the other split bobbin 12 has been described (FIG. 17), but relatively. When a long crossover wire 16a is required, as shown in FIG. 21, an extra long wire rod entwining protrusion 12d for entwining the wire rod 13 to be a crossover wire may be formed on the dividing member 12.

When the extra length wire entwining protrusion 12d is formed on the split member 12 in this way, as shown in FIG. 21, in the winding method, after winding to one of the split bobbins 12 is completed, one of the split bobbins 12 is split. The wire rod 13 drawn from the coil 16 of the bobbin 12 is entwined with the extra length wire rod entwining projection 12d of the split bobbin 12.

After that, the nozzle 82 is moved to extend the wire rod 13 from the extra length wire entanglement projection 12d of one of the split bobbins 12 to the extra length wire entanglement projection 12d of the other split bobbin 12, and the extra length wire entanglement thereof. The nozzle 82 is circulated around the protrusion 12d, and the wire rod 13 is further entwined with the extra length wire rod entwining protrusion 12d.

In this way, after the wire rod 13 is entwined with the extra length wire entwining protrusion 12d of one split bobbin 12 and the extra length wire entwining protrusion 12d of the other split bobbin 12, the tip of the nozzle 82 is attached to the other split bobbin 12. The wire rod 13 drawn from the nozzle 82 is drawn into the tubular body portion 12a of the other split bobbin 12 so as to face the tubular body portion 12a.

After that, as shown in FIG. 22, the auxiliary member holder 51 is rotated in the same direction and at the same speed in synchronization with the main member holder 41, and the wire rod 13 unwound from the nozzle 82 is rotated together with the auxiliary member holder 51. The coil 16 is wound around the tubular body portion 12a of the split bobbin 12 of the above, and the coil 16 is formed on the other split bobbin 12.

In this way, when the coils 16 and 16 connected to the pair of split bobbins 12 and 12 via the crossover wire 16a are formed, the length of the crossover wire 16a is the extra length wire entwining protrusion 12d of one of the split bobbins 12. The length is obtained by adding the distance L between the pair of split bobbins 12 and 12 to the length of the wire 13 entwined with the extra length wire entwining protrusion 12d of the other split bobbin 12.

Therefore, in the first and second winding steps, even if the main and sub-member holders 41 and 51 are relatively close to each other, the coil 16 connected via the relatively long crossover wire 16a can be obtained, and the main coil 16 can be obtained. It is possible to prevent the work environment required for the winding work from expanding due to the increase in the distance between the auxiliary member holders 41 and 51.

Further, if the extra-long wire entwining protrusion 12d to which the wire 13 is entwined is heat-melted and extinguished in the subsequent process, the extra-long wire entwining protrusion 12d is unraveled from the extra-long wire entwining protrusion 12d and crossover. The step of 16a can also be omitted.

12 split bobbin (split member)
13 Wire rod 20 Winding device for dividing member 41 Main member holder 42 Main servo motor (main rotating means)
42a Rotating shaft 51 Sub-member holder 52 Sub-servo motor (secondary rotating means)
52a Rotating shaft 61 Main holder moving mechanism 71 Sub-holder moving mechanism 81 Wire rod feeding means

Claims (10)

A winding device (20) that continuously winds a wire rod (13) around a pair of dividing members (12, 12).
A main member holder (41) that supports one of the split members (12),
The main rotating means (42) for rotating the main member holder (41) and
An auxiliary member holder (51) provided facing the main member holder (41) and supporting the other divided member (12),
A sub-rotating means (52) that rotates the sub-member holder (51) in the same direction in synchronization with the rotation of the main member holder (41).
The sub-member holder (51) facing the main member holder (41) and the main member holder (41) by moving either or both of the main member holder (41) or the sub-member holder (51). The holder movement mechanism (61,71), which is configured so that the interval between them can be changed,
The wire rod (13) wound around the other split member (12) that rotates with the main member holder (41) or the sub-member holder (51) is unwound. Equipped with wire rod extraction means (81),
The holder moving mechanism (61,71) includes a servomotor (62b, 72b) that changes the distance between the main member holder (41) and the sub-member holder (51) by driving.
A winding device for split members. The winding device for a split member according to claim 1, wherein the auxiliary member holder (51) is provided coaxially with the main member holder (41). It has a carry-in plate (22) on which a pair of split members (12, 12) can be mounted, and the carry-in plate (22) is moved to move one of the carry-in plates (12) mounted on the carry-in plate (22). A carry-in device (21) that confronts the main member holder (41) and the other split member (12) to the sub-member holder (51).
It has a carry-out plate (32) on which the pair of dividing members (12, 12) in which the wire rod (13) is continuously wound can be mounted, and the wire rod (13) is wound around the main member holder (41). The other split member (12) facing the sub-member holder (51) is mounted on the carry-out plate (32) by winding the one split member (12) facing the) and the wire rod (13). With the carry-out device (31)
The winding device for a split member according to claim 1 or 2, further comprising. The main rotating means consists of a main servomotor (42) in which the main member holder (41) is directly and coaxially attached to the rotating shaft (42a), and the auxiliary rotating means has the auxiliary member holder (51) attached to the rotating shaft (52a). ), The winding device for the split member according to any one of claims 1 to 3, comprising an auxiliary servomotor (52) mounted directly and coaxially. Claim 1 in which a plurality of main member holders (41) are provided, and the same number of sub-member holders (51) as the plurality of main member holders (41) are provided facing each of the plurality of main member holders (41). 4. 4. The winding device for the dividing member according to any one of the following items. It is a winding method in which a wire rod (13) is continuously wound around a pair of dividing members (12, 12).
First, the main member holder (41) that supports one split member (12) is rotated to wind the wire rod (13) around the one split member (12) that rotates together with the main member holder (41). Winding process and
The distance between the one split member (12) supported by the main member holder (41) and the other split member (12) supported by the sub-member holder (51) facing the main member holder (41). It is required between the pair of dividing members (12,12) in a state where the pair of dividing members (12,12) composed of the one dividing member (12) and the other dividing member (12) are assembled. The process of matching the length of the crossover (16a) and
The sub-member holder (51) that supports the other split member (12) is rotated in the same direction at the same speed in synchronization with the main member holder (41), and the wire rod (13) is rotated by the sub-member holder (13). A method of winding a split member including a second winding step of winding the other split member (12) that rotates together with 51). The method for winding a split member according to claim 6, wherein the auxiliary member holder (51) is coaxial with the main member holder (41) in the second winding step. Using a carry-in plate (22) on which a pair of dividing members (12, 12) can be mounted, one dividing member (12) is supported by the main member holder (41), and the auxiliary member facing the main member holder (41). The carry-in process of causing the holder (51) to support the other dividing member (12) is performed before the first winding process.
Using the carry-out plate (32) on which the pair of split members (12,12) on which the wire rod (13) is continuously wound can be mounted, the pair of split bobbins (12,12) that have been wound are described. The winding method for a split member according to claim 6 or 7, wherein the carry-out step of removing and discharging from the main member holder (41) and the auxiliary member holder (51) is performed after the second winding step . The rotation of the main member holder (41) is performed by rotating the rotating shaft (42a) of the main servo motor (42) in which the main member holder (41) is directly and coaxially attached to the rotating shaft (42a). The rotation of the sub-member holder (51) causes the rotation shaft (52a) of the sub-servo motor (52) to which the sub-member holder (51) is directly and coaxially directly attached to the rotation shaft (52a). The method for winding a split member according to any one of claims 6 to 8, which is performed thereby. Using multiple main member holders (41)
In the first winding process, the plurality of main member holders (41) are simultaneously rotated, and the wire rod (13) is wound around one of the divided members (12) supported by the plurality of main member holders (41). ,
A plurality of sub-member holders (51) are provided so as to face the plurality of main member holders (41).
In the second winding step, the plurality of the auxiliary member holders (51) are simultaneously rotated in the same direction at the same speed in synchronization with the plurality of the main member holders (41), and the plurality of the auxiliary member holders (51) are rotated. The winding method of the dividing member according to any one of claims 6 to 9, wherein the wire rod (13) is wound around the other dividing member (12) supported by the respective members.

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