JPS5935551A - Armature coil winding machine - Google Patents

Abstract

PURPOSE:To enable to wind a coil on a core having slots in a high density by composing a former of a stationary former and a movable former, and forming the movable former radially movably to the armature core. CONSTITUTION:In order to wind the initial coil in slots S1 and S6, S7 and S12, a core 7 is indexed, fixed by chucks 21, 22, and a stationary former is simultaneously set to the prescribed position. Then, a motor is driven and controlled, movable formers 47, 48, 46, 45 are moved from a retarding level to a start winding level, and set to the position. When the formers are completely set, a filter is turned to wind to the prescribed number of windings in the prescribed space formed between the movable former and the bottom of the slot under the guidance of the stationary and movable formers in the slits S1, S6, S7, S12.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coil winding machine capable of high-density winding on an armature core of an electric motor, particularly on a slotted core.

Conventionally, a flyer winding machine as shown in FIG. 2 has been used as a winding machine for winding a coil around the armature core of the electric motor shown in FIG. That is, a former 5 extending in the longitudinal direction of the iron core is provided on a chuck 4 attached via a bearing 3 to one end of a main shaft 2 with a seven-layer 1 fixed at a predetermined position, and a wire 6 is passed along the former 5. It is inserted into a slot 8 formed on the outer peripheral surface of a wound armature core 7.

In addition, in a small armature winding, two windings rotate in orbits in opposite directions and apart from each other around a common axis that intersects perpendicularly to the axis of the armature core 7 that is being wound, as shown in Figure 3. Usually, the fryer 2 is equipped with the following.

When winding the armature in this way, the wire 6 is guided along the former 5 into the slot 8.

However, these formers 5 are fixed to the chuck 4 as shown in FIG. 4, and when indexing the armature core 7 midway so that the coil can be wound up to the last slot,
Sufficient relief is provided so that the former 5 does not interfere with the end coil.

Therefore, the former 5 can guide the wire 6 only up to the entrance of the slot 8, and the wire 6 that flies from the tip of the former 5 becomes slack and becomes free in the slot 8. Naturally, the wire should be biased toward the slot wall on the routing side.
While rolling up the wall, the line collapses after a few rolls. This causes wire crossing and wire sagging within the slot, which adversely affects the winding of the upper coil and creates a put space within the slot. In addition, the winding of the coil blocks the entrance of the adjacent slot, obstructs the insertion of the coil into the adjacent slot, and causes the coil end to interfere with the slot exit and bulge. For this reason, if the slot space factor of the coil becomes high, it becomes impossible to insert the wedge.2 In this type of coil winding machine, it is necessary to prevent interference between the winding of the coil in the slot, wire crosses, put spaces, and coil ends. Therefore, the winding of the armature core, which requires aligned winding of the coil in the slot and a high slot space factor, could not be desired. And the slot space factor of the winding of the armature core is s7% as shown by the thick line.
The limit for m-line was about 60%. However, in order to make the motor more compact and have higher output, increasing the slot space factor of the armature core winding is the best method as it has less impact on the motor's temperature rise and plan life. It was necessary to develop a space factor armature coil winding machine.

An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to ensure that a former that moves the armature coil in the outer diameter direction of the armature core according to the order of coil winding secures a predetermined winding space for the coil. To provide a winding device which enables winding of a high slot space factor, which has been difficult in the past, by horizontally and densely winding a wire from the bottom of a slot.

That is, in the present invention, in order to achieve the above object, the former is composed of a fixed 7 ohm arranged along the outer peripheral surface of the armature core and movable formers arranged on both sides of the armature core. In addition, the movable former is movable in the radial direction of the iron core. An embodiment of the present invention will be described below with reference to the drawings.

FIG. 5 shows an embodiment of the present invention, in which the number 10 generally indicates a conventional armature winding machine, and a slotted armature core of a motor generator or other similar machine. A coil 11 of wire 6 is wound on top of 7. 12 is a horizontal table; 1, 3, and 14 are a pair of spaced supports mounted on the horizontal table 12;

15.16 is a housing, which is mounted on the support 13.14 by a horizontal slide 17.18, and by moving the slide 17.18 the housings 15.16 are brought closer or further away from each other. Perform horizontal movement.

To move the housing 15,16, suitable means are used, such as an air cylinder or a Do motor (not shown) via a ball screw.

The armature core 7, which is axially held by an indexing mechanism (not shown) fixed to the horizontal table 12, is rotated or indexed as desired to bring the slots of different pairs of armature cores 7 to coil receiving positions. It's coming.

The shaft 28.29 projects from the housing 15.16, the former housings 19.20 are mounted via bearings on the ends of the shaft 28.29 facing each other,
Chucks 21, 22 at the ends and movable formers 45, 46, 4748 movable to arbitrary positions are disposed on each side of the iron core 7, four each. The chuck 21.
The ends 21', 22' and slopes 21', 22' of the fixed former 24.2 along the longitudinal direction of the outer peripheral surface of the core are
4', 25.25'.

These chucks 21 and 22 usually have a shape with an arcuate recess 23 corresponding to the cylindrical surface of the α-mode iron core 7, and grip the armature core 7 at a position where the wire 6 is wound. Everything is covered except the slot that receives the coil.

The wire 6 is wound onto the armature core 7 by a pair of conventional rotary flyers indicated at 26.27.

This flyer 26.27 has a hollow shaft 28.2
9 and driven by shafts 28 and 29, respectively.

The flyer 26.27 has an arm 30.31, and a guide roller 32.33 is provided at the outer end of the arm 30.31, and the guide roller 32.33 serves as a guide for the wire 6 wound around the single armature iron core 7.

Also, arms 30.31 are balanzara eight 32', 32
' is attached to balance the rotation of the fryers 26 and 27.

Shafts 2B, 2 to which flyers 26, 27 are fixed
9 is the bearing 34.34' in the housing 15.16
Bearings are provided. Further, a pulley 35.36 is connected to the outer end of the shaft 28.29 with a nut 37.38.
It rotates together with the shafts 28 and 29.

This goo! Belt 39 that transmits power to J-35, 36
．． 40 is driven by the same motor (not shown) located at the bottom of the horizontal table 12.

'A double splined shaft 4 is installed inside the shaft 28,29.
1.42.43.44 bearings 49.50.5 respectively
It is held at 1.52. This spline shaft is connected to the motor shaft by a ball screw and moved synchronously by shaft moving face plates 63, 64, 63', 64' and bearings 65, 66, 64' by the power of motors 61, 62, 61', 62'.
65' and 66', the double spline curves independently move forward and backward in the axial direction.

The inner spline shaft 43.44 of the double spline shaft has a hollow hole for supplying the wire 6 to the flyer 26.27, and the supply outlet to the flyer 26.27 is located on the left side of FIG. In the winding head, the spline shaft 4-1.
43 and the shaft 28 axis are visible in the same direction. The wire 6 is always fed out from this supply outlet to the 7-layer.

Furthermore, bearings 53, 54, .
Via 53', 54', the former pivot arm 61.
Slide blocks 55, 56, 55', 56' for pivoting 62, 61', 62' are taken.

These slide blocks 55, 56, 55', 56' are
The anti-rotation mechanism fixed to the housing 19.20 (-
60 as a guide to slide in the axial direction. Pin 59 fixed to slide blocks 55.55', 56.56'
are L-shaped 7-ohm drive arms 71, 71', 72.
72' to rotate the arm.

This former driving arm has a swing fulcrum pin 57 fixed to the chuck 21.22, and engages with a pin 58 attached to the former 45.46. 47 and 48 are given forward and backward movement at the end face of the slot.

FIG. 7 shows the relationship between the winding order in the core slot of this winding machine and the movement order of the movable former.

In order to wind the first coil into the slots S1 and S6, S7 and E112, the slots s1 and S6 are placed in the state shown in FIG.
, S7, and S12 are opened and fixed with chucks 21 and 22, and at the same time, the fixed former is set in a fixed position. Next, motors 61', 62',
61 and 62 to drive and control the shaft moving plates 63' and 64.
', 64.63, bearings 65', 66', 66.65, spline shaft 42.44.43.41, bearings 53', 54
', 54.53, slide block 55', 56', 5
6.55, former arm 71', 72', 71.72
The movable former 47, 48, 46, 45 is moved from the retraction level L5 to the winding start level L1 via the retracting level L5, and set at that position. At the front stage of the movable former set, the tip of the wire 6 is fixed in advance at a predetermined position in the slit 102 or hook 103 of a commutator 101 (see FIG. 1). After setting the forma, the flyer 27
．． 26 rotates and is guided by the fixed former and the OT moving former into the slots S1, S6, S7, and S12, and winds a predetermined number of turns in a predetermined space formed between the movable former and the bottom of the slot. . When the winding is finished, the flyer 27
．． 26 stops and connects the end of wire 6 and the next beginning to commutator 101.

If a second winding operation were to be carried out on the coil spanning slots 1-82 and S7 and S8 and S9, the core 7 would have to be indexed counterclockwise. At this time, slots S7 and Sl have been winded for one coil by the previous operation, and when the movable former is indexed to the previous state (level Ll), slots S7 and Sl
There is a risk that the coil ends of the movable formers 48 and 45 may interfere with each other.

For this reason, the movable former 48.4
5 to winding level L2. After this lifting operation is completed, the chuck 22.21 is opened, the core 7 is indexed and the second winding is made in the slots 82, S7, S8, Sl. At this time, slots S7 and Sl contain the previously wound windings, so the same slots IIJ7 and
sl has the upper part of the winding and the movable former 48.450
The winding wire is guided into the winding space formed between the two.

As described above, according to the present invention, the coil winding tree in the slot of the armature coil, the cross section, the dead space,
By solving problems such as coil end interference and aligning the coils in the slot, the slot space factor of the coil can be increased to 70%, and a high space factor winding can be obtained, which is 20% higher than the conventional ratio.

As a result, the output power of the motor can be significantly increased, improving product performance, in other words, suppressing the motor's temperature rise by 1 degree, significantly extending the brush life, and making the product more compact. Therefore, the selling point of the product is strong.

[Brief explanation of drawings]

Figure 1 is a perspective view of the slotted armature core, Figure 2 is
A front view of a conventional double flyer winding machine. FIG. 3 is a partial front view of a conventional double flyer winding machine. FIG. 4 is an enlarged front view showing winding on a slotted armature core using a conventional double flyer winding machine. FIG. 5 is a longitudinal cross-sectional view of a double coil winding machine incorporating an embodiment of the present invention. FIG. 6 is a partially enlarged front view showing winding of a slotted armature iron core using a moving former of the coil winding machine of the present invention. FIG. 7 is an explanatory diagram showing the relationship between the winding order and the movement order of the movable former in one embodiment of the present invention. 6... Wire 7... Armature core 81-12
...Slot 11...Coil 45.46.47.4
8... Name of movable former patent applicant Hitachi Koki Co., Ltd. Figure 1 Figure 12 + 30

Claims (1)

[Claims] In an armature coil winding machine that winds a continuous wire from a wire supply source into a slot of an armature core using a rotating flyer using a form as a guide, the former is arranged along the outer peripheral surface of the armature core. 1. An armature coil winding machine comprising a fixed former and a movable former disposed on both sides of an armature core, the movable former being movable in the radial direction of the core.