JPS5956849A - Coil inserter - Google Patents

Abstract

PURPOSE:To enable to stably insert a coil and to effectively obtain the coil inserting position by interposing a large coil between stationary blades by the second blade integral with a blade retainer of the lower part of a presser and interposing small coil by adding the first blade integral with the presser. CONSTITUTION:The first blade 3 secured to the groove 5b of a presser and the second blade 21 secured to the groove 22a of a blade retainer 22 provided at the lower part of the presser are cooperatively moved. On the other hand, adjacent large coils 16a and stationary blades 26 disposed therebetween are secured together with a wedge guide 4 in a housing 25, thereby positioning in the bore of a core 1 and in the groove of the core. Further, the first and second blades 3, 21 corresponding to the coils 16a, 16b are interposed between the coil 16a and the blades 26, 21, while the coil 16b is unterposed between the second blade 21 and the first blade 3.

Description

[Detailed Description of the Invention] This invention relates to a coil inserter that manufactures a stator by inserting coils into the stator core of a two-rotary electric machine.In particular, the upper tool of the coil inserter can damage all the coils. It can be inserted without any problem.

The present invention also relates to a coil inserter that can stabilize the relative position between the inserted coil and wedge and the iron core.

Conventionally, there has been an upper tool for this type of coil inserter as shown in FIG. In the figure, (1) is the stator core into which the coils and wedges are inserted using this tool, and (2)
is the groove insulating paper inserted into the core groove 07+ where the coil is inserted, (
3) are blades arranged radially on both sides of the inserted coil to engage with the inner diameter of the iron core (1), and their lower ends are all fastened to the grooves (5b) of the suppressor (5) with machine screws (7). The blade spacing is maintained such that each adjacent blade (3) can easily sandwich the force coil and guide it to the mouth of the core groove (17). A wedge kite (4) is engaged with the outer periphery of each blade (3).

The wedge guide (41) uses its tip to position the lower end of the stator core (1), and also includes a wedge (not shown) that is inserted at the same time as the coil OB.
It is the presser (5) that presses and inserts the coil/L (lGi into the core groove (171), and after inserting the coil, the blade f3
The 4i71 indenter (5), which is formed in one piece, is returned to its original position by the puller (9), and the puller (1)) is moved by the bolt (8) to the indenter (8). 5) is fixed.

Next, the operation of this conventional device will be explained. As shown in Figure 1, first set the coil (IGI) on the blade (3), then cut the stator core (1) several times so that it circumscribes the tip of the upper tool ασ and the blade (3). A stopper (not shown) to prevent floating is placed on the outer periphery of the upper part of the stator core (11).Next, when the lower surface (5a) of the presser (5) is pressed from the lower part of the upper tool a1, the presser (5) The coils OE are placed in their respective core grooves 071 in a predetermined position with the coils 071 engaged between the flades (3).

At this time, a wedge is inserted at the same time to prevent the coil ae from coming off to the inner diameter side from the iron core groove (!) and to serve as an insulator.After that, the pressure on the pusher (5) from the bottom is stopped, and the pull rod (Pull back 91. From this point, the presser (5) returns to the 5th digit while being integrated with each blade (3).

The upper tool of the conventional coil inserter is configured as above σ, so all coils 06 (and blades)
3) The coil (16
) is not damaged, but the suppressor (5) and blade (3) are all retracted as one after the coil is inserted.

In some cases, the coil (16) that has just been inserted may be pulled back, and the inserted coil on the inserted side (lower side) must be held down by hand (71) or with a holding jig.

Pull back not only the coil αG) but also the wedge.

If the conditions are bad, there is a drawback that the end of the groove insulating paper on the side opposite to insertion may be damaged.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and has a structure in which one of the two blades sandwiching the coil corresponding to one core groove qη can be pulled back first. This allows for stable coil insertion,
Another object of the present invention is to provide a coil inserter that ensures a reliable coil insertion position.

An embodiment of the present invention will be described below with reference to the drawings. Second
The figure is a side view showing one embodiment of the present invention.

FIG. 3 is a plan view of FIG. 2. In the figure, (3) is the first blade fixed to the groove (5b) of the presser (5) with a small screw (7), and Q9 is the blade holder c! provided at the bottom of the presser (5). This is the second blade fixed to the Z groove (Z2a) with a machine screw (7), and the blades move together. On the other hand, the adjacent large coil (16a)
and the fixed blade located between the large coil (16a).

Together with the wedge guide (4), it is fixed inside the wedge guide (4) and serves to locate the inner diameter and core groove of the stator core (11). It is fixed to the blade holder @.

Further, a first coil corresponding to the large coil (16a) and the small coil (16b) is provided. Second blade (3). The arrangement of Ql) is.

As shown in Figure 3, the large coil (16a) is held between the fixed blade ship and the second blade CD, and the small coil (16a)
6b) is held between the second blade Qll and the first blade (3). Therefore, the upper tool f241 of the coil inserter is configured as described above.

Next, the operation of this embodiment device will be explained.

First, from the bottom of such an upper tool t241,
Press the lower surface (zzb) of the node holder 1271. The blade holding metal z moves forward through the single element core (1) 9111 together with the presser (5), and the large coil (1, Sa
) is a fixed button (2b),! : Ig 2 F I
/-do c! 1) A small carp, 7th block 16b)
is inserted into the core groove 07) while being held between the second blade c2+1 and the first blade (3). Further, at this time, a wedge is also inserted at the same time. After that, stop the pressure with a suitable bell. Next, to hold the suppressor (5) in its sweet state, use the holding trigger rod 6 to pull back the holding trigger rod 6. Clamping (7) 1st and 2nd blades (31, (2)
+, inside the fixed blade holder, integrated with the blade holder (22) σ) inside the large coil (16a) and small coil (16b) (
Only the second blade blade (1) at W5 is first retracted and released from the grip into the wide gap between the fixed blade (2f*!) and the blade (3).At this point, the primary Retract the presser (5) using the pull rod (9) to return it to its original position.

As described above, in the coil in → 1 to ta according to the present invention, a fixed blade is provided between the separated and adjacent large coils, and the inner diameter of the core and the position of the core groove are determined. The second blade, which is integrated with the blade holder, holds this large coil between the fixed blade, and the small coil further holds the first blade node, which is integrated with the presser. Since the coil is clamped by adding it, there is no damage to the coil due to insertion, and the coil does not move back after insertion. In the 71st work, the pusher and the first blade integrated with the pusher are left for a while [7], and the second blade between the large coil and the small coil moves forward and backward, so that the coil can be inserted stably, and There is no longer any need for rework or detenting the coil with 9 moves, which would conventionally occur due to pulling back the inserted coil and wedge.
- Dimensional accuracy and standards for jigs are unclear and Hakuwa 1
Although the line was inconsistent, it has the effect of being safe to use.

[Brief explanation of drawings]

FIG. 1 is a side view of an upper tool of a conventional coil inserter, FIG. 2 is a side view of an upper tool showing an embodiment of the coil inserter according to the present invention, and FIG. 3 is a plan view of FIG. 2. Note that the same or corresponding parts in FIG. 1 are given the same reference numerals. (1)... Stator core, (2b)... Fixed blade, (5)... Presser, aZ... Holder, (3
)...first blade, c! n...Second board t/-. Agent Makoto Kuzuno - Raku 1 Figure 2 Figure

Claims (1)

[Claims] A coil inserter that inserts a coil and a wedge into a stator core includes a plurality of fixed blades arranged on an upper tool to position the stator core, and a plurality of fixed blades that position the coil along the fixed blades into the core grooves of the stator core. a presser to be pressed and inserted; a retainer disposed at the bottom of the presser;
A coil to be inserted has a plurality of first blades provided on the outer periphery of the presser so as to be integrated with the presser, and a plurality of second blades that are provided integrally with the retainer. 1 above. between any of the second blades and the fixed blade or the first blade. It is held between the second blades, and when the coil is inserted, the presser and retainer are held between the first and second blades. It is operated integrally with the second blade, and the above-mentioned retainer and the second
A coil inserter characterized by retracting the blade before the presser.