JPS5855744B2 - Coil insertion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a stator for an electric machine, and in particular, a coil insertion apparatus that automatically inserts a coil and an insulator piece into a groove in a stake core, which conventionally relied on manual labor. The present invention provides a coil holding tool for automatically holding down a coil housed in a coil insertion jig.

As shown in FIGS. 1 and 2, the stake of the electric machine according to the present invention is constructed with a coil 4 and an insulator piece 5 inserted into a groove 3 insulated by an insulating paper 2 of a stator core 1. be done.

The third conventional manufacturing apparatus for the stator of the electric machine is
The coil insertion device shown in FIGS.

Hereinafter, a conventional coil insertion device will be explained based on FIGS. 3 to 5.

6 is a coil insertion jig, and 7 is a coil pusher (not shown) installed in the coil insertion jig 6 that moves up and down to insert the coil 4 into the groove 3 of the stator core 1 (Figs. 1 and 2). A coil pushing rod 8 is used to insert the insulator piece 5 (not shown) housed in the coil insertion jig 6 into the groove 3 of the stator core 1 (FIGS. 1 and 2). 9 is a housing for slidably supporting the coil pushing rod 7 and the insulating piece pushing body 8; 10 is a flange for fixing the housing 9; 11 is a coil insertion jig 6; a positioning device for alignment above the housing 9, 12;
13 is a holding plate that contacts the upper surface of the stake core 1; 13 is an arm that holds the holding plate 12; 14 is a roller; 15 is a shaft that rotatably supports the roller 14 on the arm 13; 16 is a cam plate; grooved cam 16a forming the R portion
The roller 14 is inscribed therein.

17.18 is a fulcrum pin, 19 and 20 are connection pins, 21
22 is a link, one end of which is rotatably connected to the arm 13 by a shaft 15, and the other end of which is rotatably connected to the lever 21 by a connecting pin 19. is connected to.

23 is a joint rotatably connected to the lever 21 by a connecting pin 20, 24 is a support plate, 25 is a cylinder, the tip of the rod 25a is connected to the joint 23, and the head side is swung to the support plate 24 by a fulcrum pin 18. Supported for free movement.

A block 26 fixes the cam plate 16 and the support plate 24;
7 is a stationary cylinder supporting the block 26, 2B.

29 is a slide shaft, 30 is an intermediate plate that connects the slide shafts 28 and 29 with the stationary cylinder body 27, and 31 is an adjustment bolt whose head is connected to the T groove of the block 26, and when rotated, the block 26 can be adjusted. Can be adjusted up and down.

32 is a top plate that fixes the upper end of the slide shaft 28.29;
A blade 6a 3 is attached to the upper end of the coil insertion jig 6.
34 is a stabilizing body attaching/detaching device for heating the stabilizing body at the upper end of the coil insertion jig;
Reference numeral 35 denotes a lifting arm, 36 a flange for fixing the fixing body attaching/detaching device 34 to the tip of the lifting arm 35, and 37 a cylinder for raising and lowering the lifting arm, which is housed inside the stationary cylinder 27.

38 is a joint receiver, and 39 is a joint, which is connected to the rod 37a of the cylinder 37.

Reference numeral 40 denotes a slide bearing, which is installed inside the lifting arm 35 and is slidable on the slide shafts 28 and 29.

41 is a bottom plate that fixes the slide shaft 28 and the stationary cylinder 27;
42 is a board, and 43 is a worker's hand.

In the above configuration, when the coil insertion jig 6 containing the coil 4 is aligned above the housing 9 by the positioning device 11, the cylinder 37 is activated and the lifting arm 35 is lowered.

Initially, the regulating body 33 is attached to the regulating body attaching/detaching device 34 and waiting at the upper limit, but due to the lowering movement of the elevating arm 35 mentioned above, it is attached to the upper end of the coil insertion jig 6, and the fixing body is attached/detached. The fixing body 33 is separated from the attachment/detachment portion 34a of the device 34.

When the regulating body 33 is separated from the detachable part 34a, the cylinder 37
is activated, the fixing body attaching/detaching device 34 rises together with the elevating arm 35, and waits at the upper limit.

Next, the stator core 1 is supplied to the upper end of the coil insertion jig 6 by an operator while being guided by the setting body 33.

When the stator core 1 is supplied, the cylinder 25 is activated, the rod 25a moves forward, the lever 21 is swung counterclockwise via the joint 23, and the arm 13 is moved along the groove cam 16a of the cam plate 16 via the link 22. By lowering the holding plate 12 at the same time, the holding plate 12 comes into contact with the upper surface of the stator core 1 and holds the stator core 1.

Subsequently, the cylinder 37 is actuated, and the leveling body attaching/detaching device 34 is lowered together with the elevating arm 35 to an intermediate position and is on standby.

When the fixing body attaching/detaching device 34 is lowered to the intermediate position, the coil push rod 7 rises to raise the coil pusher (not shown) installed in the coil insertion jig 6, and the coil 4 is inserted into the groove 3 of the stator core 1. (Fig. 1, Fig. 2).

Simultaneously with the raising operation of the coil push rod 7, the insulating piece pushing body 8 is raised, and the insulating piece 5 (not shown) housed in the coil insertion jig 6 is inserted into the groove 3 of the stator core 1 (see FIG. 1). Second
(Fig.).

When the coil push rod 7 raises the coil pusher (not shown), the setting body 33 is lifted by several of the radially arranged blades 6a, and the setting body attaching/detaching device waits at an intermediate position. It is attached to the attachment/detachment part 34a of 34.

When the coil 4 and the insulator piece 5 are inserted into the groove 3 (FIGS. 1 and 2) of the stator core 1, the coil pushing rod 7 and the insulator piece pushing body 8 descend to their original positions, and the setting body 33 The installed fixing body attachment/detachment device 34 rises to its upper limit and goes into standby mode.
The arm 13 is raised to its original position by the retraction movement of the rod 25a of the cylinder 25.

In the coil insertion device as described above, the problem is how to reduce the resistance when inserting the coil into the groove of the stator core in order to prevent scratches, dents, elongation, etc. of the coil and deformation of the stator core.

It is already known that as a measure for this purpose, it is effective to press the coil housed in a coil insertion jig toward the center in the radial direction of the core.

By the way, in the conventional coil insertion device, as shown in FIG. 4, the coil 4 housed in the coil insertion jig 6 is pressed from state A to state B by the operator's hand 43, which reduces work efficiency. The drawback was that it was low and dangerous.

The present invention eliminates the drawbacks of the conventional coil insertion device, and an embodiment thereof will be described below with reference to FIGS. 6 and 7.

6 and 7, 6 is a coil insertion jig, and 7 is a coil pusher (not shown) installed in the coil insertion jig 6 that moves up and down to move the coil 4 into the groove of the stator core 1. (
A coil pushing rod 8 is used to insert the insulator piece 5 (not shown) housed in the coil insertion jig 6 into the groove 3 of the stator core 1 (FIGS. 1 and 2). 2); 9 is a housing for slidably supporting the coil pushing rod 7 and the insulating piece pusher 8; 10 is a flange for fixing the housing 9; 1
1 is a positioning device for aligning the coil insertion jig 6 above the housing 9; 12 is a holding plate that contacts the upper surface of the stator core 1; 13 is an arm that holds the holding plate 12;
4 is a roller, 15 is a shaft that rotatably supports the roller 14 on the arm 13, and 16 is a cam plate, which has a grooved cam 16a forming an upper end or R portion, and the roller 14 is inscribed therein.

17 and 18 are fulcrum pins, 19 and 20 are connection pins, 21 is a lever that is swingably supported on the cam plate 16 by the fulcrum pin 17, and 22 is a link that is rotatably connected to the arm 13 by one end or the shaft 15. and the other end or connecting pin 1
9, it is rotatably connected to the lever 21.

23 is a joint rotatably connected to the lever 21 by a connecting pin 20, 24 is a support plate, 25 is a cylinder, the tip of the rod 25a is connected to the joint 23, and the head side is swung to the support plate 24 by a fulcrum pin 18. Supported for free movement.

A block 26 fixes the cam plate 16 and the support plate 24;
7 is a stationary cylinder that supports the block 26, 28.29 is a slide shaft, and 30 is a stationary cylinder that supports the slide shaft 28.29.
The intermediate plate 31 connected to the intermediate plate 31 is an adjustment bolt whose head is connected to the T-groove of the block 26, and by rotating it, the block 26 can be adjusted up and down.

32 is a top plate that fixes the upper end of the slide shaft 28.29;
A blade 6a 3 is attached to the upper end of the coil insertion jig 6.
34 is a stabilizing body attaching/detaching device for attaching and detaching the stabilizing body to the upper end of the coil insertion jig;
Reference numeral 35 denotes a lifting arm, 36 a flange for fixing the fixing body attaching/detaching device 34 to the tip of the lifting arm 35, and 37 a cylinder for raising and lowering the lifting arm, which is housed inside the stationary cylinder 27.

38 is a joint receiver, and 39 is a joint, which is connected to the rod 37a of the cylinder 37.

Reference numeral 40 denotes a slide bearing, which is slidable on slide shafts 28 and 29 installed inside the lifting arm 35.

41 is a bottom plate that fixes the slide shaft 28 and the stationary cylinder body 21;
42 is a substrate, and 44 is a coil presser for pressing down the coil housed in the coil insertion jig 6.

In the above configuration, when the coil insertion jig 6 in which the coil 4 is housed is aligned above the housing 9 by the positioning device 11, the coil insertion jig 6, in which the coil 4 is housed, is aligned above the housing 9. The coil 4 and the insulator piece 5 are inserted into the groove 3 of the stator core 1 by the method.

In the coil insertion device according to the present invention, a coil holding device is used to press down the coil 4 housed in the coil insertion jig 6 into the fixing body attachment/detachment device 34 attached to the tip of the lifting arm 35 that moves up and down by the operation of the cylinder 37. 44, as shown in FIG.
When descending to attach the fixing body 33 to the tip of the coil insertion jig 6, the coil presser 44 automatically changes the coil 4 housed in the coil insertion jig 6 from state A to state B. It can be pressed down.

As is clear from the above description, according to the present invention, the coil housed in the coil insertion jig can be automatically pushed inward, eliminating the need for manual work by the operator, increasing work efficiency, and improving work efficiency. safety will be improved.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a stator of an electric machine according to the present invention, FIG. 2 is a cross-sectional view of a groove in the stator, and FIG. Figure, 4th
The figure is a front view showing a part of FIG. 3, FIG. The figure is a partially sectional front view showing a main part of a coil insertion device according to an embodiment of the present invention, and FIG. 7 is a front view showing a part of FIG. 6. 1... Stator core, 2... Insulating paper,
3...Groove, 4...Coil, 5...
...Insulator piece, 6...Coil insertion jig, 7...
... Coil pushing rod, 8 ... Insulator piece pushing body, 11 ... Positioning device, 12 ... Pressing plate, 13 ... Arm, 25... Cylinder, 33... Setting body, 34... Setting body attachment/detaching device, 35... Lifting arm, 37...
...Cylinder, 43...Hand, 44...
・Coil presser.

Claims (1)

[Claims] 1. A coil insertion jig that accommodates a coil to be wound, a coil push rod that inserts the coil accommodated in the coil insertion jig into the stator core, and a stator core that is supplied to the upper end of the coil insertion jig and holds the stator core. and a fixing body attaching/detaching device for attaching/detaching the fixing body to the upper end of the coil insertion jig, the fixing body attaching/detaching device abutting the coil housed in the coil insertion jig so that when the fixing body is attached, the fixing body attaching/detaching device is configured to A coil insertion device characterized in that a coil holding tool for holding the coil is provided on a side closer to the coil insertion jig in the axial direction from the holding position of the setting body.