JPH0345980B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a stator composite winding device for a rotating electrical machine;
In particular, the present invention relates to a stator for a rotating electrical machine that can efficiently and automatically wind a stator in sequence and automatically clamp a coil lead wire in the direction of the outer circumference of an iron core.

[Prior Art] Conventional stator composite winding devices for this type of rotating electric machine include those shown in FIGS. 1, 2, and 3. In FIGS. 1 and 2, 1 is the fixed core, 28 is the delivery chute for the stator core 1, and 2
9 is also a discharge shot, 16 is a cross hand,
It consists of a hand arm 16 and a holding mechanism 16b. 2
1 is a coil inserter, 25 is a molding machine, and 40 is an interphase insulating paper insertion machine. The cross hand 16 has a holding mechanism 16b that holds the stator core 1 at the tip of the hand arm 16a.
The coil inserter 21, the forming machine 25, and the interphase insulating paper inserting machine 40 can be rotated, raised, and lowered at each station. A is a stator core removal/installation station where stator core 1 is removed and installed, and B is a coil winding jig 2.
The coil 2 to be wound by the coil insertion jig 2
0, rotated by the rotation table 18, and inserts the wedge and the coil 2. C is the coil insertion station, which corresponds to the type of U-phase, V-phase, or W-phase coil inserted in the previous process. , a coil forming station that performs a coil end forming operation by selecting one of predetermined first, second, and third forming jigs 26a, 26b, and 26c using a rotating table 24; D is a formed stator core; This is an interphase insulation insertion station that automatically selects interphase insulation paper only for those for which the next coil insertion remains, and inserts the interphase insulation paper from the inner diameter side of the stator core 1.

As shown in FIG. 3, the holding mechanism 16b holds the stator core 1 lifted from the lower part at the loading chute 28 when the cam grooved gear 13 is rotated by an external drive gear (not shown). The metal ring 13a engaged with the groove and its shaft 13b move forward the cuff protector, which also serves as 14 chucks and is slidably provided on the holding mechanism main body 16c, thereby moving the stator core 1 as shown in the figure. It is held in a gripping state. 2a is the coil end on the non-lead side of the coil 2, 2b is the coil end on the lead side of the coil 2, 3 is the lead wire, and 35 is formed so that the coil end 2a on the non-lead side does not expand beyond the stator core outline. The regulating outer ring 15 is an outer ring that similarly regulates the lead-side coil end 2b.

Next, the operation of the above conventional example will be explained.

The stator core 1 held by the holding mechanism 16b at the stator core removal and mounting station A is first inserted with the U-phase coil 2 at the coil insertion station B, and then the U-phase coil is inserted at the coil forming station C. After inserting the coil end in step 2, insert it into a bullet-shaped molding tool 4.
The first upper molding jig 27a descends from the upper part.
The molding process is completed by. Furthermore, at the interphase insulating paper insertion station D, the U-phase coil 2
A work is performed to insert interphase insulating paper between the coil 2 and the coil 2 that will be inserted from now on. After that, continue to install V-phase coil 2 using the same procedure as U-phase coil 2.
, the interphase insulating paper is inserted, and finally the W-phase coil 2 is inserted and formed. The V-phase and W-phase coils 2 are formed by the second and third forming jigs 26b and 26c and the second and third upper forming jigs 27b and 27c, respectively. As described above, the stator core 1 once held is now in the state of a stator after all the winding work of the U-phase, V-phase, and W-phase coils for one unit is completed through the above-mentioned work process. After that, the cam grooved gear 13 is reversely rotated at the stator core removal/installation station A, the cuff protector 14 is opened radially, and the stator is released and discharged to the discharge chute 29.

[Problems to be Solved by the Invention] In the conventional fixed-incorporated composite winding device for a rotating electric machine as described above, the forming machine 25 is attached to the stator held by the holding mechanism 16 of the cross hand 16 at the coil forming station C. The lead-side coil end 2b of the three-phase coil 2 inserted into the iron core 1 is shaped by the first to third shaping jigs 26a, 26b, and 26c, and the non-lead-side coil end 2a of the coil is shaped by the first to third shaping jigs. Since the upper jigs 27a, 27b, and 27c only perform the coil end work by forming, when the coil 2 is inserted into the stator core 1, the lead wire 3 led out from the lead side coil end 2b does not sag. First, the U-phase coil 2 is inserted at the coil insertion station B, and the lead-side coil end 2b of the coil 2 is formed at the coil forming station C. After that, the interphase insulating paper is inserted at the interphase insulating paper insertion station D. In this case, since the lead wire 3 that is led out from the lead-side coil end 2b of the coil 2 and is hanging down from the base end side, the base end side may be damaged due to the movement of the holding mechanism 16b, etc. The wire may enter the movable area of the insulating paper insertion jig, and at that time, the lead wire 3 may come into contact with the movable insulating paper insertion jig and be damaged, or may get caught and break. Also,
When inserting the next V-phase coil 2 at the subsequent coil insertion station B, the base end side of the lead wire 3 of the U-phase coil 2 moves the coil insertion jig 20 that inserts the V-phase coil 2. At that time, the lead wire 3 may come into contact with the movable coil insertion jig 20 and be damaged, or may become caught and break. Furthermore, when forming the V-phase coil 2 at the coil forming station C, the base end side of the lead wire 3 of the U-phase coil 2 may enter the movable area of the U-phase second forming jig 26b. There was a problem that the lead wire 3 sometimes touched the movable second forming jig 26b and was damaged, or got caught and broke. This problem also occurs with respect to the lead wire 3 of the V-phase coil 2, even when the final W-phase coil 2 is inserted and formed after the V-phase coil 2 has been inserted and formed and the interphase insulating paper has been inserted. .

This invention was made to solve such problems, such as damage to the coil lead wire,
A stator for a rotating electrical machine that is equipped with a lead wire handling device that can clamp all the coil lead wires when the coils inserted into the stator core are molded using a molding machine to prevent the lead wires from breaking. The purpose is to provide a composite winding device.

[Means for Solving the Problems] A rotating composite winding device for a rotating electric machine according to the present invention includes a plurality of hand arms each having a holding mechanism for holding a stator core in a gripped state at the tip thereof, and rotates these hand arms. a coil inserter that inserts each three-phase coil into the stator core held by the holding mechanism; and a lead side of each coil inserted into the stator core held by the holding mechanism. In a stator composite winding device for a rotating electric machine, which is equipped with a forming machine having three forming jigs and three upper forming jigs for respectively forming coil ends, the stator is provided hanging below the holding mechanism, a grooved outer ring having a plurality of serrated V-grooves at the lower end and surrounding the coil end on the coil lead side; a swiveling ring that is rotatably provided at the lower part of the holding mechanism and surrounds the grooved outer ring; a swivel lever provided on the swivel ring to drive the swivel ring; a plurality of lead hooks attached to the inner periphery of the swivel ring at substantially the same intervals as the pitches of the plurality of V grooves of the grooved ring; The stator lead wire handling device is configured to include a lead wire push-up ring that is attached to the outer periphery of the stand of each molding jig of the molding machine and surrounds the lower end of the lead hook when the molding jig is raised. be.

[Function] In this invention, each molding jig of the molding machine descends and molds the opposite-lead side coil end of each coil inserted into the stator core held by the holding mechanism of the hand. The jig rises to form the lead-side coil ends of each of the coils. At this time, the stator lead wire processing device operates to clamp the lead wires led out from the lead-side coil end of each coil. That is, the lead wire push-up ring attached to the outer periphery of the stand of each molding jig also rises, pushing up all the lead wires hanging down from the end of the lead side coil, and holding the proximal ends of these lead wires as described above. It is inserted into a plurality of V-grooves provided at the lower end of a grooved ring provided hanging down at the lower part of the mechanism so as to surround the lead-side coil end. In this state, when the swivel ring provided at the lower part of the holding mechanism so as to surround the grooved outer ring is rotated by driving the swivel lever, the plurality of V grooves of the grooved outer ring are formed on the inner periphery of the swivel ring. A plurality of lead hooks attached at approximately the same spacing as the pitches also pivot to clamp the lead wires to appropriate lead hooks, and even if the holding mechanism subsequently pivots or moves up and down, the lead wires remain clamped. Ru.

Therefore, when the holding mechanism rotates, moves up and down, and coil insertion and coil forming are performed on the remaining coils at the coil insertion station or coil forming station, or when interphase insulating paper is inserted at the interphase insulating paper insertion station, , the lead wire of the coil, which has already been inserted and formed, hangs down from the outer position of the lead wire push-up ring.
The clamped proximal end will not come into the movable area of the coil insertion jig, forming jig, etc. at each station, and the lead wire will not come into contact with these jigs when these jigs move. , you won't get stuck.

[Example] An example of the present invention will be described below based on the drawings. FIG. 4 is a sectional view showing an embodiment of the present invention;
Fig. 5 is a sectional view showing the main part of the same embodiment, Fig. 6 is an explanatory diagram showing the state before the lead wire is clamped to the lead hook, and Fig. 7 shows the state where the lead wire is clamped to the lead hook. It is an explanatory diagram. In the figure, components that are the same as those of the conventional example are given the same reference numerals, and explanations of duplicated components will be omitted. 6 is molding machine 2
The shell-shaped molding metal 4 is attached to the base of the third molding jig 26c provided on the rotating table 24 of No. 5. Reference numeral 7 denotes a lead wire push-up ring attached to the outer periphery of the stand 6, which surrounds the lower end of a lead hook, which will be described later, during coil end forming. Reference numeral 8 denotes a push-up bar that moves up and down, supports the stand 6, and is provided on the turning table 24. Reference numeral 10 denotes a lead side internal molding metal attached to the stand 6. The third forming jig 26c is composed of a stand 6, a push-up rod 8, a bullet-shaped forming die 4, and a lead-side inner forming die 10. This third forming jig 2
A lead wire push-up ring 7 is attached to 6c. Reference numeral 9 denotes a forming metal on the non-lead side of the third molding upper jig 27c of the molding machine 25, numeral 11 denotes a presser foot to which the internal forming metal 9 on the anti-lead side is attached, and numeral 12 denotes a presser bar to which the presser foot 11 is attached and moves up and down. . Third forming jig 2
7c is molded with an inner molding metal 9 and a presser foot 11 on the side opposite to the lead. 15a is a lead-side coil end 2b of the coil 2 at the bottom of the holding mechanism 16b of the cross hand 16.
It is a grooved outer ring that hangs down to surround the outer ring, and has a plurality of V-grooves 15b in a sawtooth shape at its lower end. Reference numeral 32 denotes a rotating ring that is rotatably provided by a presser foot 31 fixed to the lower part of the holding mechanism 16b with a bolt 34, and is connected to the grooved outer ring 15.
A pivot lever 17 that can be driven and operated from the outside is attached. Reference numeral 33 denotes a plurality of lead hooks attached to the inner periphery of the swivel ring 32 at the same intervals as the pitches of the plurality of V grooves 15b of the grooved outer ring 15a, and each has a lead receiving portion 33a at its tip. 36 is the holding mechanism main body 1
The rotational position of the turning ring 32 is determined by a ball plunger provided at 6c. A stator lead wire processing device that clamps the lead wire 3, which includes a lead wire push-up ring 7 and a grooved outer ring 1.
5a, a swing lever 17, a swing ring 32, and a lead hook 33.

Next, the operation of the above embodiment will be explained.

At coil forming station C, forming machine 2
5 first to third forming jigs 26a, 26b, 26
c and the first to third upper forming jigs 27a, 27b, 2
7c, the anti-lead side coil end 2a and the lead side coil end 2b of the three-phase coil 2 inserted into the stator core 1 held by the holding mechanism 16b of the cross hand 16 are respectively formed. For example, for a W-phase coil which is the last to be coil-formed among the three-phase coils, the third forming jig 27c is lowered to the non-lead side of the W-phase coil, as shown in FIG. After forming the coil end 2a, the third forming jig 26c ascends to form the lead-side coil end 2b of the W-phase coil. At this time, the stator lead wire processing device operates to crank the lead wire 3 led out from the lead coil end 2b of the coil 2.

That is, the lead wire push-up ring 7 attached to the outer periphery of the stand 6 of the third forming jig 26c also rises to push up all the lead wires 3 hanging down from the lead-side coil end 2b of the three-phase coil 2. As shown in FIG. 6, the lower end of a grooved outer ring 15a is provided hanging down from the lower part of the holding mechanism main body 16c of the holding mechanism 16b so as to surround the lead wire coil end 2b. into each V-groove 15b.

In this state, the holding mechanism main body 1 of the holding mechanism 16b
A swing ring 32 provided at the lower part of the grooved outer ring 15a to surround the grooved outer ring 15a is connected to the swing lever 17.
The lever 17 is driven and rotated manually, or the rotation lever 17 is driven and rotated by an actuator (not shown). Then, as shown in FIG. 7, the plurality of lead hooks 33 attached to the inner periphery of the turning ring 32 at the same intervals as the pitches of the plurality of V grooves 15b of the grooved outer ring 15a also turn, and each lead wire 3 is suitable lead hook 3
The lead hook 3 is hooked onto the lead receiving portion 33a of the lead hook 3.
Clamped at 3. Incidentally, positioning when the turning ring 32 is rotated by one pitch of the lead hook 33 and then stopped is performed by the ball plunger 36. Thereafter, even if the lead wire push-up ring 7, which has been pushing up the lead wire 3 up until now, is lowered as the forming jig 26c descends, the clamping of the lead wire 3 is maintained by the lead hook 33. The above is an explanation of how the lead wire 3 of the W-phase coil 2 formed by the third forming jig 26c is clamped, but the lead wire 3 of the W-phase coil 2 formed by the third forming jig 26c is also clamped. A wire push-up ring 7 is attached, and the lead wire 3 of the coil 2 to be formed into a U-phase or V-phase coil 2 is clamped in the same manner as for the W-phase coil 2. Note that when the lead wire 3 of the W-phase coil 2 is clamped last, the lead wires 3 of the U-phase and V-phase coils 2 are also clamped. In this way, the lead wire 3 is clamped when forming the coil 2 of each phase, and after the lead wire 3 is kept clamped by the lead hook 33, the holding mechanism 16b rotates and moves up and down to insert the remaining coils 2. When coil insertion and coil forming are performed at station B or coil forming station C, or interphase insulating paper is inserted at interphase insulating paper insertion station D, coil 2 that has already undergone coil insertion and coil forming The lead wire 3 hangs down from the outer position of the lead wire push-up ring 7, and the clamped proximal end is movable for the coil insertion jig 20 and the second and third forming jigs 26b and 26c at each station. This prevents the lead wires 3 from coming into contact with these jigs and being damaged when these jigs are moving, or from being caught and broken.

[Effects of the Invention] As described above, according to the present invention, each molding jig of the molding machine rises to remove the lead-side coil end of each coil inserted into the stator core held by the holding mechanism of the hand. During molding, the ring wire push-up ring of the stator lead wire processing device attached to the outer periphery of the stand of each molding jig also rises to push up the lead wires hanging from the end of the lead side coil, and removes these lead wires. Insert the proximal end of the grooved outer ring into the multiple V grooves at the lower end of the grooved outer ring that hangs down to surround the lead-side coil end at the bottom of the holding mechanism, and in that state, insert the grooved By driving a swing lever and rotating the swing ring of the stator lead wire processing device provided so as to surround the outer ring, a plurality of V-grooves of the grooved outer ring are formed on the inner periphery of the swing ring. A plurality of lead hooks of the lead wire processing device installed at equal intervals were also pivoted so that the lead wires were caught and clamped on these lead hooks.
After the lead wire is clamped by the lead hook, the holding mechanism rotates, moves up and down, and when the remaining coils are inserted, coil formed, and interphase insulating paper inserted at each station, the coil insertion and coil forming have already been completed. The lead wire of the coil that is being processed hangs down from the outer position of the lead wire push-up ring, and the proximal end that is clamped enters the movable area of the coil insertion jig, forming jig, etc. at each station. This has the effect that when these jigs move, the lead wires will not come into contact with these jigs and be damaged, or be caught and broken.

[Brief explanation of drawings]

Fig. 1 is a plan view of a conventional stator composite winding device for a rotating electrical machine, Fig. 2 is an explanatory diagram showing the device, Fig. 3 is a sectional view showing the holding mechanism of the device, and Fig. 4 is the invention. 5 is a sectional view showing the main parts of the same embodiment, FIG. 6 is an explanatory view showing the state before the lead wire is clamped to the lead hook,
FIG. 7 is an explanatory diagram showing a state in which the lead wire is clamped to the lead hook. In the figure, 1 is the stator core, 2 is the coil, 2
a is the anti-lead side coil end, 2b is the lead side coil end, 3 is the lead wire, 7 is the lead wire push-up ring,
15a is a grooved outer ring, 15b is a V groove, 16 is a cross hand, 16a is a hand arm, 16b is a holding mechanism, 17 is a turning lever, 21 is a coil inserter, 25 is a molding machine, 26c is a third molding jig, 2
7c is a third forming jig, 32 is a turning ring, 33
3 is a lead hook, and 37 is a stator lead wire processing device. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] 1. A hand comprising a plurality of hand arms each having a holding mechanism for holding the stator core in a gripped state at its tip, and for rotating and raising and lowering these hand arms, and a stator held by the holding mechanism. A coil inserter that inserts each three-phase coil into the iron core, three forming jigs that form the lead-side coil end of each coil inserted into the stator core held by the holding mechanism when rising, and each coil. A stator composite winding device for a rotary electric machine, comprising a molding machine having three upper molding jigs for molding the non-lead side coil end when descending, the lower end a grooved outer ring having a plurality of V-grooves in a sawtooth shape and surrounding the lead-side coil end of the coil; a swiveling ring that is rotatably provided at the lower part of the holding mechanism and surrounds the grooved outer ring; a swing lever provided on the swing ring to drive the swing ring; and a plurality of lead hooks attached to the inner periphery of the swing ring at substantially the same intervals as the pitches of the plurality of V grooves of the grooved outer ring. and a stator lead wire processing device comprising a lead wire push-up ring attached to the outer periphery of the stand of each molding jig of the molding machine and surrounding the lower end of the lead hook when the molding jig is raised. A stator composite winding device for rotating electric machines.