JPH0624416B2 - Coil winding equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to winding an electric wire around a pair of winding frames having a plurality of winding stages whose diameters are gradually increased in order to form a coil used for a stator of a rotary electric machine, for example. The present invention relates to a coil winding device in which a coil is attached to form a coil, and the coil is dropped into a coil insertion jig. Particularly, the interval between the pair of winding frames can be automatically changed according to the thickness of the stator. It relates to a structure that can change this even during operation.

"Prior Art and Problems Thereof" A conventional coil winding device of this type is configured, for example, as shown in FIG. That is, a coil insertion jig 2 having a plurality of blades 1 arranged in an annular shape is installed, and the blades 1 are arranged so as to guide the coils to slots of a stator (not shown). A shaft 4 which is vertically moved by a drive mechanism (not shown) is inserted in a support cylinder 3 supported above, and a front reel 6 and a rear reel 7 face a support plate 5 fixed to the shaft 4. Installed. The front winding frame 6 is arranged corresponding to the coil insertion jig 2 and has a gap 8 into which the blade 1 is inserted.
The front reel 6 is formed with a plurality of winding stages 6a, 6b, 6c, 6d whose diameters are gradually increased from below, and the rear winding frame 7 also has similar winding stages 7a, 7b, 7c, 7d is formed. The front reel 6 and the rear reel 7 move up and down integrally with the shaft 4 via the support plate 5. On the other hand, a flyer 10 for feeding the electric wire 9 is rotatably mounted on the outer periphery of the support cylinder 3 by a drive mechanism (not shown). Further, a pusher 11 is inserted through the front reel 6, and the pusher 11 is moved up and down by a drive mechanism (not shown) so that the coils wound around the reels 6 and 7 are dropped downward. There is.

In the above-mentioned structure, the flyer 10 rotates, the two reels 6,
The electric wire 9 is wound around the lowest winding stage 6a, 7a of 7 to form a coil. Next, when the flyer 10 is located on the rear winding frame 7 side, the shaft 4 descends and both the winding frames 6 and 7 descend one step, and the electric wire 9
Is wound from the lowest winding stage 7a to the next higher winding stage 7b, and the electric wire is wound around the winding stages 6b and 7b of both reels 6 and 7. Thereafter, in the same manner, the electric wire 9 is sequentially wound around the winding stages of both the winding frames 6 and 7 from below to form a coil. Finally, both reels 6,
The coils formed in each winding stage of No. 7 are pushed down by the pusher 11 to be removed from each winding stage, and dropped into the corresponding gaps of the blade 1 of the coil insertion jig 2.

By the way, the length of the loop of the coil is, of course, set so that it can be inserted into the slot of the stator. Will be determined. Therefore, even if the stator has the same diameter, the length of the loop of the coil must be changed according to the thickness. In the case of stators having the same diameter, the length of the coil loop is changed by moving the rear winding frame 7 and changing the distance from the front winding frame 6.

However, in the conventional device, the operation of the device is stopped, the rear winding frame 7 is removed from the support plate 5, the position is changed, and the device is attached to the support plate 5 again. Therefore, the winding work must be interrupted. It requires complicated manual work,
The work efficiency was greatly reduced.

"Object of the Invention" The object of the present invention is to solve the above-mentioned problems of the prior art, and when the thickness of the stator changes, the interval between the pair of winding frames can be automatically changed, and even during the winding operation. It is to provide a coil winding device capable of changing this.

[Configuration of the Invention] In order to achieve the above object, the coil winding device of the present invention includes: a flyer support cylinder having a flyer at its lower end, which is inserted and held in upper and lower frames through bearings; A pusher support cylinder that is inserted and has a pusher support block attached to the lower end through a bearing, and a pusher support cylinder that is attached to the outer periphery of the flyer support cylinder and is connected to the pusher support cylinder through a slit along the axial direction of the flyer support cylinder. A second movable frame that holds the outer circumference of the formed second ring through a bearing and the inner circumference of the pusher support cylinder. A reel support block is attached to the lower end through the bearing, and a reel support block is attached to the upper end. The flyer support cylinder includes a reel support shaft having a spline hole, a third ring that holds an outer periphery of the reel support shaft through a bearing, and a flyer support cylinder. A first movable frame for holding a first ring connected through a slit and mounted on the outer periphery of the flyer support cylinder via a bearing; a motor installed in the upper frame and having a drive gear; and the flyer support cylinder. Is mounted on the outer periphery of the wire introduction tube provided at the center of the upper end of the flywheel, and has a driven gear that meshes with the drive gear at one end and a first sun gear at the lower end, and an eccentric upper part of the flyer support tube. A rotary shaft which is inserted into a bearing portion provided at a position, a first planetary gear meshing with the first sun gear is fixed to one end, and a second planetary gear having the same number of teeth as that of the first planetary gear is fixed to the other end; A lower end portion is inserted into the spline hole, and an upper end portion is engaged with the second planetary gear. A spline shaft is fixed to a second sun gear having the same number of teeth as the first sun gear. A third sun gear that is formed in a portion surrounding the flyer support cylinder and a bearing portion that is provided at an eccentric position below the flyer support cylinder, and has a third planetary gear that meshes with the third sun gear at one end. A rotation shaft to which a gear is fixed and a fourth planet gear having the same number of teeth as that of the fourth sun gear fixed to the other end; and a fourth sun gear having the same number of teeth as the third sun gear, which meshes with the fourth planet gear, A fixed block having a guide rod inserted into the reel support block and mounted on the outer periphery of the lower portion of the flyer support cylinder via a bearing; and a reel support shaft in the reel support block with respect to the reel support shaft. A reel adjusting shaft that is held at a right angle and has a second gear at one end that meshes with a first gear that is attached to the lower end of the reel supporting shaft, and the other end is a bolt portion, and the reel adjusting shaft. It is screwed into the bolt part of the shaft and is inserted into the guide hole of the reel support block. It is characterized by comprising a movable block attached, a front winding frame attached to the winding frame support block, and a rear winding frame attached to the movable block.

According to such a winding device of the present invention, when the motor operates and the drive gear thereof rotates, the driven gear, the first sun gear, the first planetary gear, the second planetary gear, and the second sun gear are passed through. The spline shaft rotates, and the reel support shaft rotates with it. As the reel support shaft rotates, the reel adjusting shaft rotates via the first gear and the second gear provided at the lower end of the reel support shaft. When the reel adjusting shaft rotates, the movable block screwed to the bolt moves, changing the position of the rear reel,
The distance between the front reel and the rear reel can be changed.

In this way, the interval between both bobbin frames can be changed quickly by only operating the motor without interrupting the winding operation. Therefore, the coils of the stators having different thicknesses can be continuously formed, and the workability can be greatly improved. In addition, by changing the interval between the pair of winding frames during the winding operation, it is possible to change the circumferential length of the coil in the same winding stage of the winding frame, thereby improving the insertability of the coil.

"Embodiment of the Invention" FIGS. 1 and 2 show a main part of a coil winding device embodying the present invention. Although the drawing is a vertical cross section, the right side of the drawing is actually the lower side and the left side is the upper side.

In the figure, 21 is a reel support shaft, and a reel support block 22 is attached to the lower end portion thereof. A pusher support cylinder 23 is arranged outside the reel support shaft 21, and a pusher support block 24 is attached to the lower end of the pusher support cylinder 23. Further, a flyer support cylinder 25 is arranged outside the pusher support cylinder 23, and a flyer 26 is attached to the lower end portion thereof.

A rotary gear 27 is fixed to the outer periphery of the upper portion of the flyer support cylinder 25, and the flyer support cylinder 25 is rotated via the rotary gear 27 by a drive device (not shown). At this time, the flyer 26 also rotates integrally. Flyer support tube
The upper portion of 25 is rotatably held by an upper frame 28 via a bearing 29, and the lower portion thereof is rotatably held by a lower frame 30 by a bearing 31. The upper end of the flyer support cylinder 25 forms an electric wire introduction cylinder 32. The electric wire introducing cylinder 32 is provided above the winding frame support shaft 21.
The electric wire 34 is introduced via a guide reel 33 attached to the upper frame 28. Electrical wire
34 is a guide hole 3 formed on the side of the flyer support cylinder 25.
Guided by guide reel 39 through 5, 36, 37, 38, flyer
It is fed from the tip of 26. The guide hole 36 is formed in the first ring 40 mounted on the outer circumference of the upper portion of the flyer support cylinder 25, and the guide hole 37 is formed in the second ring 41 also mounted on the outer circumference of the middle portion of the flyer support cylinder 25. Has been done.

The first ring 40 is connected to a third ring 43 provided on the inner circumference of the flyer support cylinder 25 through a slit 42 formed along the axial direction of the flyer support cylinder 25.
The inner circumference of the ring 43 is connected to the reel support shaft 21 via the bearing 44.
Is fitted on the outer periphery of the upper part of the. The outer circumference of the first ring 40 is fitted to the first movable frame 46 via the bearing 45. Therefore, when the first movable frame 46 moves as shown by an arrow A in the figure, the reel support shaft 21 slides up and down via the first ring 40 and the third ring 43. The first ring 40 and the third ring 43 rotate together with the flyer support cylinder 25, but the bearings 44 and 45 prevent the rotational force from being transmitted to the winding frame support shaft 21 or the first movable frame 46. There is.

Further, the second ring 41 is the slit 42 of the flyer support cylinder 25.
A part thereof is connected to the upper end portion of the pusher support cylinder 23 through. The outer circumference of the second ring 41 is a bearing
It is fitted to the second movable frame 48 via 47. Therefore, when the second movable frame 48 moves as shown by an arrow B in the figure, the pusher support cylinder 23 slides up and down via the second ring 41. The pusher support cylinder 23 and the second ring 41 rotate together with the flyer support cylinder 25, but the bearing 47 prevents the rotational force from being transmitted to the second movable frame 48. By the way, the above-mentioned pusher support block 24 is attached to the lower end of the pusher support cylinder 23 via a bearing 49, and the bearing 49 prevents the rotational force of the pusher support cylinder 23 from being transmitted to the pusher support block 24. There is.

A spline hole 50 is formed in the center of the upper end of the reel support shaft 21, and a spline shaft 51 is inserted into the spline hole 50. Therefore, the spline shaft 51 rotates integrally with the reel support shaft 21 while allowing the reel support shaft 21 to move in the axial direction. The upper part of the spline shaft 51 is
It is rotatably held on the upper part of the flyer support cylinder 25 via a bearing 52.

By the way, a motor 53 is installed above the upper frame 28, and a worm gear 55 is attached to a rotary shaft 54 of the motor 53.
And the drive gear 56 is mounted. A position detection gear 57 meshes with the worm gear 55, and the position detection gear 57
Detects the number of rotations of the rotary shaft 54 and obtains the distance between the front reel and the rear reel by a mechanism described later. The drive gear 56 has a bearing 58 on the outer circumference of the wire introduction tube 32.
It is meshed with a driven gear 60 formed on the upper part of a gear ring 59 mounted via. A first sun gear 61 is formed below the gear ring 59.
Rotates with the driven gear 60.

In addition, on the upper portion of the flyer support cylinder 25, three bearing portions 62 (one of them in FIG.
This bearing part 62 is formed.
The rotary shaft 64 is inserted through the bearing 63. A first planetary gear 65 and a second planetary gear 66 are fixed to the upper and lower ends of the rotary shaft 64. The first planetary gear 65
It meshes with the first sun gear 61 described above. The second planetary gear 66 meshes with the second sun gear 67 fixed to the upper end of the spline shaft 51 described above. The first sun gear 61 and the second sun gear 67 have the same number of teeth, and the first planetary gear 61
The number of teeth of 65 and the second planetary gear 66 are the same.

Therefore, the first planetary gear 65 and the second planetary gear 66 are
The first sun gear, which rotates around the shaft together with the bearing 62 as the flyer support cylinder 25 rotates, is meshed with each other.
It revolves around 61 and the second sun gear 67 while rotating on its axis. However, the first sun gear 61 and the second sun gear
67 has the same number of teeth, and the first planetary gear 65 and the second planetary gear 66 have the same number of teeth, so the first sun gear 61
And the second sun gear 67 will perform the same rotational movement via the first planetary gear 65 and the second planetary gear 66.
That is, when the first sun gear 61 is fixed,
When the second sun gear 67 is also fixed and the first sun gear 67 rotates by a predetermined angle, the second sun gear 67 also rotates by the same angle in the same direction. Thus, by rotating the drive gear 56 by the motor 53, the driven gear 60, the first gear
The spline shaft 51 can be independently rotated via the sun gear 61, the first planetary gear 65, the second planetary gear 66, and the second sun gear 67. Then, when the spline shaft 51 rotates, the frame support shaft 21 also rotates integrally with it.

A lower portion of the frame support shaft 21 is inserted into the winding frame support block 22 and is rotatably held via a bearing 68.
The first bevel gear 69 is attached to the lower end of the reel support shaft 21.
Is stuck. Further, in the reel support block 22,
The reel adjusting shaft 70 bears at right angles to the reel supporting shaft 21.
It is rotatably held via 71. A second bevel gear 72 is formed at one end of the reel adjusting shaft 70, and the second bevel gear 72 meshes with the first bevel gear 69 of the reel supporting shaft 21. The other end of the winding frame adjusting shaft 70 forms a bolt portion 73, and a movable block 74 is screwed and attached to the outer circumference of the bolt portion 73. The movable block 74 is movable along a guide hole 75 formed in the reel support block 22 as indicated by an arrow C in FIG. A front winding frame 76 is fixed to one end of the winding frame support block 22, and a rear winding frame 77 is fixed to the movable block 74 so as to face the front winding frame 76.

Therefore, when the reel support shaft 21 rotates, the reel adjusting shaft 70 rotates via the first bevel gear 69 and the second bevel gear 72, and when the reel adjusting shaft 70 rotates, the reel 73 is screwed into the bolt portion 73. The moving movable block 74 moves as shown by arrow C. Then, as the movable block 74 moves, the rear reels
The 77 moves, and the distance between the front reel 76 and the rear reel 77 is changed.

On the other hand, as described above, the rotation of the reel support shaft 21 causes the motor 53 to rotate.
The rotating shaft 54 of the motor 53
By detecting the number of rotations of the position detection gear 57, it is possible to detect the amount of change in the interval between the front reel 76 and the rear reel 77,
By feeding back the information to the drive circuit of the motor 53, it becomes possible to automatically change and adjust the interval between the two reels 76, 77.

By the way, the reel support block 22 that supports both reels 76 and 77.
Needs to move up and down together with the reel support shaft 21, but needs to be fixed with respect to the rotation of the reel support shaft 21. Therefore, in this winding device, the lower frame
A fixed block 78 that is indirectly fixed to 30 is provided. That is, as shown in FIG.
Is a pair of guide bars that are attached to the outer periphery of the lower end of the flyer support cylinder 25 via bearings 79 and project downward.
It has 80 and 81. The reel support block 22 is attached to the guide rods 80 and 81 so as to be vertically movable. A bearing portion 82 projecting from two locations on the outer circumference is formed in the upper portion of the portion of the flyer support cylinder 25 where the fixed block 78 is mounted, and the rotary shaft 84 is inserted into this bearing portion 82 via a bearing 83. Has been done. On the lower frame 30, the third sun gear 85
Are formed. A fourth sun gear 86 is formed on the fixed block 78. A third planetary gear 87 and a fourth planetary gear 88 are fixed to both ends of the rotary shaft 84. The third sun gear 85 meshes with the third planetary gear 87 to form the fourth planetary gear.
88 is in mesh with the fourth sun gear 86. In this case, the third sun gear 85 and the fourth sun gear 86 have the same number of teeth, and the third planetary gear 87 and the fourth planetary gear 88 have the same number of teeth.

Therefore, the third planetary gear 87 and the fourth planetary gear 88 are
The third sun gear, which rotates around the shaft together with the bearing 82 as the flyer support cylinder 25 rotates, is meshed with each other.
It will revolve while rotating around 85 and the fourth sun gear 86. However, the third sun gear 85 and the fourth sun gear
86 has the same number of teeth, and the third planetary gear 87 and the fourth planetary gear 88 have the same number of teeth, so the third sun gear 85
And the fourth sun gear 86 will perform the same rotational movement via the third planet gear 87 and the fourth planet gear 88.
Since the third sun gear 85 is fixed integrally with the lower frame 30, the fourth sun gear 86 is also fixed. In this way, the fixed block 78 is connected to the third planetary gear.
87, the lower frame 30 indirectly through the fourth planetary gear 88.
Can be fixed against. Therefore, the reel support block 2 mounted on the guide rods 80 and 81 of the fixed block 78
2 can be stopped.

Next, a winding operation using this coil winding device will be described. The winding operation is carried out in substantially the same manner as the conventional device shown in FIG.

In FIG. 1 and FIG. 2, the flyer support cylinder 25 is entirely rotated by rotating a rotary gear 27 provided on the upper portion by a drive device (not shown), and the flyer 26 is also rotated.
Rotates. Then, the electric wire 34 is paid out, and both reels 76, 77
To form a coil. Both reels 7
When the winding of the lowest winding stage of 6, 77 is completed, the first movable frame 46 moves downward, and the winding frame support shaft 21 slides downward via the first ring 40 and the third ring 43. Thereby, together with the reel support shaft 21, the reel support block 22,
Both reels 76 and 77 are lowered to a predetermined height, and the electric wire 34 is wound over the next higher winding stage. In this way, windings are sequentially formed from below in each winding stage of both bobbins 76 and 77, and a coil is formed in each winding stage. Both reels 76, 7
When the coils are formed in all of the seven winding stages, the second movable frame 48 moves downward, and the pusher support cylinder 23 slides downward via the second ring 41. Thereby, the pusher support block 24 descends together with the pusher support cylinder 23,
The coils formed on the winding frames 76 and 77 are pushed downward by a pusher (not shown) and dropped into a predetermined gap of a coil insertion jig (not shown).

By the way, as described above, when the thickness of the stator changes, it is necessary to change the length of the loop of the coil accordingly. Further, sometimes, in order to improve the insertability of the coil, coils having different circumferential lengths may be required in the same winding stage of the winding frames 76 and 77. In such a case, the adjustment is performed by changing the distance between the front reel 76 and the rear reel 77. In this coil winding device,
The distance between the 76 and the rear bobbin 77 can be changed automatically. That is, the motor 53 operates to rotate the rotating shaft 54, and through the drive gear 56, the driven gear 60, the first sun gear 61, the first planetary gear 65, the second planetary gear 66, and the second sun gear 67,
The spline shaft 51 rotates, and the reel support shaft 21 rotates with it. With the rotation of the reel support shaft 21, via the first bevel gear 69 and the second bevel gear 72 provided at the lower end of the reel support shaft 21,
The reel adjusting shaft 70 rotates. When the reel adjusting shaft 70 rotates,
The movable block 74 screwed to the bolt portion 73 moves as shown by an arrow C in FIG. 1 to change the position of the rear reel 77 and change the distance between the front reel 76 and the rear reel 77. You can As described above, the rotation axis of the motor 53
If the rotation speed of 54 is detected by the position detection gear 57, the front reel 76
It is possible to detect the amount of change in the interval between the rear reels 77, and by feeding back the information to the drive circuit of the motor 53, the interval between both reels 76, 77 can be set to a preset desired value. it can. In this way, by simply operating the motor 53, both winding frames can be operated without interrupting the winding operation.
The interval between 76 and 77 can be changed quickly. Therefore, the workability of the coil winding operation and the insertability of the coil can be greatly improved.

[Advantages of the Invention] As described above, according to the present invention, a rotating mechanism that independently rotates the reel support shaft is provided, and the movable block held in the reel support block by the rotation of the reel support shaft. Was moved to change the interval of the reels, so the interval of the reels can be quickly changed without interrupting the winding operation,
It is possible to continuously form the coils of the stators having different thicknesses and the coils having different circumferential lengths in the same winding stage of the winding frame, and to greatly improve the workability in the coil winding operation.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a coil winding device according to the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is an example of a conventional coil winding device. FIG. In the figure, 21 is a reel support shaft, 22 is a reel support block, 23 is a pusher support tube, 24 is a pusher support block, 25 is a flyer support tube, 26 is a flyer, 27 is a rotary gear, 28 is an upper frame, 30 Is a lower frame, 32 is an electric wire introduction tube, 34 is an electric wire,
42 is a slit, 46 is a first movable frame, 48 is a second movable frame, 50 is a spline hole, 51 is a spline shaft, 53 is a motor, 54 is a rotary shaft, 56 is a drive gear, 60 is a driven gear, and 61 is a first 1 sun gear, 62 bearing part, 65 first planet gear, 66 second planet gear, 67 second sun gear, 69 first bevel gear, 70 reel adjusting shaft, 72 second bevel gear, 73 Is a bolt part, 74 is a movable block, 76 is a front reel, 77 is a rear reel,
80 and 81 are guide rods, 82 is a bearing portion, 85 is a third sun gear, 8
6 is a fourth sun gear, 87 is a third planetary gear, and 88 is a fourth planetary gear.

Claims (1)

[Claims] 1. Bearings (29, 3) on the upper and lower frames (28, 30)
1) Inserted and held through the flyer support cylinder (25) having a flyer (26) at the lower end, and inserted into the inner periphery of the flyer support cylinder (25), and a pusher support is provided at the lower end via a bearing (49). A pusher support cylinder (23) with a block (24) attached, and an outer circumference of the flyer support cylinder (25), and the pusher support cylinder is passed through a slit (42) along the axial direction of the flyer support cylinder (25). The second movable frame (48) holding the outer circumference of the second ring (41) connected to the cylinder (23) through a bearing (47) and the inner circumference of the pusher support cylinder (23) are inserted into the lower end. A reel support block (22) is attached to the upper part of the reel via a bearing (68), and a reel support shaft (21) having a spline hole (50) at the upper end, and the reel support shaft (21). ) Is connected to a third ring (43) for holding the outer circumference of the flyer via a bearing (44) through a slit (42) of the flyer support cylinder (25), Serial flyer support cylinder (25)
Install the first ring (40) mounted on the outer periphery of the bearing (45)
A first movable frame (46) held via a motor, a motor (53) installed on the upper frame (28) and having a drive gear (56), and provided at the center of the upper end of the flyer support cylinder (25). Mounted on the outer periphery of the electric wire introducing tube (32), and has a driven gear (60) meshing with the drive gear (56) at one end and a first sun gear (61) at the lower end.
And a bearing (62) provided at an eccentric position above the flyer support cylinder (25), and has a first sun gear (6) at one end.
A rotary shaft (64) to which a first planetary gear (65) meshing with 1) is fixed and a second planetary gear (66) having the same number of teeth as that of the first planetary gear (65) is fixed to the other end.
And a first sun gear (6) having a lower end inserted into the spline hole (50) and an upper end meshing with the second planetary gear (66).
The spline shaft (51) to which the second sun gear (67) having the same number of teeth as that of 1) is fixed, and the third sun gear ((3) formed in a portion of the lower frame (30) surrounding the flyer support cylinder (25). 85) and a bearing portion (82) provided at an eccentric position below the flyer support cylinder (25), and the third sun gear (8
A rotating shaft (84) to which a third planetary gear (87) meshing with 5) is fixed, and a fourth planetary gear (88) having the same number of teeth as that of the third planetary gear (87) is fixed to the other end.
And the third sun gear (8) that meshes with the fourth planetary gear (88).
The fourth sun gear (86) having the same number of teeth as 5) and the guide rods (80, 81) inserted through the reel support block (22) are provided on the outer periphery of the lower portion of the flyer support cylinder (25). A fixed block (78) mounted via a bearing (79), and a holding block (22) held in the winding frame support block (22) at a right angle to the winding frame support shaft (21) at one end. A reel adjusting shaft (70) having a second gear (72) meshing with a first gear (69) mounted on the lower end of (21), and the other end of which forms a bolt portion (73); A movable block (74) screwed into the bolt portion (73) of the reel adjusting shaft (70) and attached to the guide hole (75) of the reel supporting block (22), and the reel supporting block ( Front reel (76) mounted on 22)
And the rear reel (77) attached to the movable block (74)
And a coil winding device.