JPS5923175B2 - Iron core stacking device for rotating electric machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention combines a rotary table with an insertion device having an insertion section and a supply section, and by continuously rotating the rotary table, iron core stacking work for rotating electric machines can be performed automatically without requiring any input. This invention relates to an iron core stacking device for a rotating electrical machine that can be used in a rotating electrical machine.

Conventional iron core stacking equipment uses an indexing device on the table to position and stop table rotation for each sector according to the number of core stacking sectors, and sequentially stacks iron plates in a circumferential manner using an insertion device. Iron plates are sequentially transported in a circumferential manner by hand while the table is continuously rotated.

The former involves intermittent rotation of the table to carry out core stacking, which takes a long time and reduces work efficiency, while the latter involves manual core stacking on a continuously rotating table, which causes fatigue and reduces efficiency. It was both bad and dangerous.

In the present invention, during continuous rotation of a rotating table on which the number of detected devices equal to the number of iron core sectors are mounted equidistantly on the outer periphery, a detector detects and commands the detected devices and drives an insertion device. By suctioning and transporting each sheet one by one and sequentially stacking the iron core over the entire circumference of the table, no human power is required.
Moreover, it is an object of the present invention to provide a core stacking device for a rotating electric machine that can perform core stacking with high efficiency.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In this embodiment, the number of sectors of the iron core is 8.

In FIGS. 1 and 3, with the rotary table 1 at the center, an insertion device 4° 5.2 having an insertion section 2 and a supply section 3 is installed so as to face the rotation table 1,
It constitutes the main iron core stacking device.

On the outer periphery of the rotary table 1, the number of detected devices 6 equal to the number of sectors of the iron core is mounted at equal intervals, and a table fixing frame 7I is installed.
A detector 8 for detecting the detected device 6 and instructing the insertion section 2 is fixed at a ratio of one for each insertion device.

The output shaft of a table driving electric motor 9 with a continuously variable transmission is connected to a reducer 11 via a coupling 10, a chain wheel 12 is fixed to the output shaft of the reducer 11, and the chain wheel 12 is fixed to the outer periphery of the rotary table 1. The meshing rotational torque of the pin rack 13 is transmitted to the rotary table 1.

A guide 14 for the inner diameter of the core and an ID pin 15 for the outer diameter of the core are attached to the upper surface of the rotary table 1 for positioning the stacking of the core.

The insertion devices 4 and 5 are mounted on an electric main body moving trolley 16 so that their positions can be changed according to changes in the core volume outer diameter.
It is firmly fixed on top.

In addition, the insertion devices 4 and 5 have exactly the same structure, and the insertion part frame 17 includes a vacuum cylinder 20 that sucks up and lowers the iron plates 18 one by one from the upper part of the iron plate laminated block 19, and a temporary sudock to shorten the iron plate supply time. air cylinder 21
is provided at the rear, and a positioning guide plate 22 for automatically positioning the insertion position of the iron plate 18 and an insertion cylinder 23 for inserting the iron plate are provided at the front.

A roller 24 that rotates in the circumferential direction of the rotary table 1 and an electromagnet 25 for adsorbing the iron plate are attached to the rond end of the insertion cylinder 23.
is installed.

A belt conveyor 26 for generally transporting iron plates is provided between the front and rear parts, a permanent magnet 27 is attached to the inside of the belt, and the iron plates are attracted to the lower surface of the conveyor 26 and conveyed.

The insertion section 2 configured in this manner is connected to a lifting electric motor 29 and a reduction gear 30 fixed to the top of the column 28 via a chain wheel and a chain 31, so that it can be moved up and down electrically.

Further, the supply unit 3 on which the iron plate laminated block 19 is mounted is provided with a table 32 using rollers to facilitate positioning of the iron plate laminated block 19, and an electric motor 33 and a speed reducer 34 provided on the body moving trolley 16. , are connected via a chain wheel and a chain 35, and are moved up and down electrically.

FIG. 2 shows the operation command circuit and counter circuit of the two insertion devices 4 and 5 when the number of iron core product sectors is eight.

That is, in FIG. 2, PN is a DC power supply bus, and between the buses P and N, a normally closed contact AR3b of a lowering auxiliary relay AR3 (not shown) of the insertion cylinder 23 of the insertion device 4 is connected.
Normally open contact CR4a1 of auxiliary relay CR4, normally open contact LAXa of auxiliary relay LAX (not shown) of detector 8, normally closed contact TR1b of time limit relay TR1, and auxiliary relay CR1
are connected in series and normally open contact CR of auxiliary relay CR4.
4a1, normally open contact LAXb of auxiliary relay LAX is connected in parallel to normally open contact LAXa of auxiliary relay LAX, and normally closed contact LAXb of auxiliary relay LAX is connected in series with this.
Connect auxiliary relay CR2.

In addition, the normally open contact CR of the auxiliary relay CR1 is connected in parallel with these.
1a2 and time-limited relay TR1 are connected in series.

In addition, normally closed contact CR of auxiliary relay CR1 is connected between bus bars P and N.
1b, the normally open contact AR3a of the auxiliary relay AR3 and the count coil COC of the electromagnetic counter COU are connected in series.

Same < Normally open contact CR1a of auxiliary relay CR1 between P and N
3, and the reset coil ReC of the electromagnetic counter COU
Connect in series.

Furthermore, the normally closed contact CR2b of the auxiliary relay CR2 is connected between the bus P and the output common contact of the counter COU,
An auxiliary relay CR3 is connected between the count contact C2 and the busbar N, which operates when the count number of the counter COU is 5.
In addition, an auxiliary relay CR is connected between the count contact C3, which operates when the counter number of the counter COU is 8, and the busbar N.
Connect 4.

Normally open contact CR3a of auxiliary relay CR3 and auxiliary relay C
Auxiliary relay CR3, CR at normally open contact CR4a2 of R4
4 holding circuits are constructed.

Next, the operation of the core stacking device configured as described above will be described.

With the rotary table 1 in the center as shown in Figure 1, inserting device 4
, 5 are fixed at opposite positions in alignment with the outer diameter of the core to be processed, and a guide 14 for the inner diameter of the core and a guide pin 15 for the outer diameter of the core are set on the upper surface of the table 1.

Next, the core laminated block 19 is placed on the supply section 3 and fixed.

When the start switches of the insertion devices 4 and 5 are turned on, the vacuum cylinder 20 descends and the iron plate 1 on the upper part of the iron plate laminated button 19 is turned on.
The iron plate is attracted and raised, and the permanent magnet provided at the lower end of the iron plate of the air cylinder 21 attracts the iron plate.

After confirming with a proximity switch that the iron plate is not being conveyed to the lower surface of the electromagnet 25 of the insertion cylinder 23, the air cylinder 21 is raised, and the iron plate is attracted to the belt conveyor 26 and conveyed to the position of the insertion cylinder 23.

The conveyed iron plate is automatically corrected to the insertion position by the positioning guide plate 22, and then transferred to the insertion cylinder 23.
It is attracted by the electromagnet 25 and stands by.

Meanwhile, during this time, the vacuum cylinder 20 confirms that the iron plate has passed the lower surface of the air cylinder 21, descends again, picks up one iron plate on the upper surface of the iron plate laminated board 19, and is temporarily suspended in the air cylinder 21. Ru.

When the rotary table 1 rotates and the detected device 6 installed on the side of the table is detected by the detector 8 attached to the table fixing frame 7, the insertion cylinder 23 adsorbs the iron plate 18 according to the command. It descends, stacks iron plates on the rotary table 1 using the core inner diameter guide 14 and core outer diameter guide pin 15 set on the rotary table 1 as guides, releases the electromagnet 25, and ascends again.

Thereafter, these operations are repeated one after another to form an iron core over the platinum circumference of the rotary table.

Note that even if the core thickness gradually increases, the insertion portion frame 17 is sequentially raised by the electric motor 29 so that the stroke of the insertion cylinder 23 is always constant.

Similarly, even if the stacking thickness of the core laminated blocks 19 gradually decreases, the table 32 with rollers is sequentially raised by the electric motor 33 so that the stroke of the vacuum cylinder 20 remains constant.

FIGS. 3A and 3B show the core stacking operation by the insertion devices 4 and 5 when the number of sectors is 8.

After starting the insertion devices 4 and 5, the rotary table 1 is driven.

The detected device 6 attached to the outer periphery of the rotary table 1 is connected to the detector 8.
By detecting this, the auxiliary relay AR3 is activated, and the insertion device 4 inserts in advance.

As shown in FIG. 3a, the iron plate 18 is sequentially inserted by the cylinder 23
is inserted.

Each time it is inserted, the contact A R3a closes and the counter COU counts.

When five iron plates are inserted by the insertion device 4, the count becomes 5, and at the same time, the auxiliary relay CR3 shown in Fig. 2 operates.
A holding circuit is formed by the normally open contact CR3a, and the insertion device 5 starts operating by closing another contact (not shown) of the relay CR3.

After the insertion device 4 completes inserting five sheets and the table 1 rotates by 1/2 sector, the detector 8' detects the detected device 6 and drives the insertion cylinder 23 of the insertion device 5, as shown in FIG. Insert the iron plate 18 with 1/2 lamp as shown.

In FIG. 3C, as the rotary table 1 rotates, the insertion devices 4 and 5 sequentially insert the iron plates 18.

After the number of stacked sectors by the insertion device 4 reaches 8, that is, the count number of the counter COU reaches 8, the auxiliary relay CR4 shown in FIG. 2 is activated, and the insertion cylinder 23 of the insertion device 4 is stopped by opening a contact point (not shown). .

The auxiliary relay CR4 maintains itself by closing its normally open contact CR4a2.

At the same time, CR4a1 also becomes quiet.

Next, the detected device 6 is detected, and the auxiliary relay LAX of the detector 8 is
When the normally open contact LAXa is activated, the auxiliary relay CRI is activated, and when the normally open contact CR1a3 is closed, the counter COU is automatically reset.

At this time, since the insertion device 4 is stopped, core stacking is not performed.

At the same time as the detected device 6 passes the detector 8, LAXb is closed, so the auxiliary relay CR2 is activated and its normally closed contact C is activated.
R2b opens and normally open contact CR4a of auxiliary relay CR4
2. The holding circuit caused by closing is released, and the insertion cylinder 23 of the insertion device 4 is restarted.

That is, the iron core product is restarted after leaving one sector.

Similarly, the insertion device 5 has a counter circuit (not shown), and after inserting eight sectors, it pauses for ■ sectors and then restarts.

A predetermined number of layers are stacked, the rotary table 1 is continuously rotated, and the layers are sequentially stacked to form an iron core.

In this case, each iron plate 18 is loaded by the core inner diameter guide 14 and outer diameter guide pin 15 so that uneven lamination does not occur.

In FIG. 3, ■, ■■, etc. indicate the order in which the laminated iron plates are arranged.

As described above, according to the present invention, when a rotary table having a number of detected devices equally distributed around the outer periphery thereof continuously rotates, a detector detects a detected device, The signal drives the insertion device, picks up and transports the iron plates one by one from the top of the core stacking block, and automatically stacks the iron plates around the entire circumference of the table in order. Work efficiency is much better than intermittent core stacking methods such as stacking equipment.

Furthermore, there is no reduction in work efficiency due to worker fatigue, unlike manual methods that use a rotary table.

Furthermore, good results can be obtained even when safety is taken into account.

[Brief explanation of the drawing]

1 is an elevational view showing an embodiment of a core stacking device for a rotating electric machine according to the present invention, FIG. 2 is a circuit diagram of the main part of the device in the same embodiment, and FIGS. 3a, b+c are the same. FIG. 3 is a plan view showing the order of core stacking in the example. 1...Rotary table, 2...Insertion section,
3... Supply unit, 4... Insertion device (preceding), 5... Insertion device (trailing), 6...
Detected device, 7...Table fixed frame, 8
...Detector, 9...Table, drive motor, 10...Coupling, 11...
... Rotary table reducer, 12... Chain wheel, 13... Pin rack, 14...
... Core inner diameter guide, 15 ... Iron core outer diameter guide pin, 16 ... Main body movement trolley, 17 ...
...Insertion part frame, 18... Iron plate, 19
......Iron plate laminated block, 20...Vacuum cylinder, 21...Air cylinder, 22...
... Positioning guide plate, 23 ... Insertion cylinder, 24 ... Roller, 25 ... Electromagnet, 26 ... Belt conveyor, 27 ...・・・
Permanent magnet, 28... Column, 29...
Lifting electric motor, 30... Dust reduction bottle 31...
・Chain 32... Table with rollers, 33.
...Lift electric motor, 34...Reduction gear,
35... Chain, AR3, CR1 to 4 and LAX... Auxiliary relay, TR1... Time limit relay, COU... Electromagnetic counter, C1...
...Common contact, C2, C3...Count contact.

Claims (1)

[Claims] 1. A supply having a rotating pedestal equipped with a guide that matches the dimensions of an iron core consisting of a plurality of sectors of a rotating electric machine, and a first vertically moving cylinder equipped with a suction device for collecting iron plates stored to be stacked on the iron core. and a horizontal moving conveyor equipped with a suction device for transporting the iron plate, a second vertical movement cylinder equipped with a suction device for lowering the iron plate, and an insertion part having a steel plate positioning guide and moving up and down in the vertical direction. A plurality of insertion devices are arranged around the pedestals and the distance between the pedestals is variable. and an electric control device that generates a signal that causes the iron plates forming each layer of the iron core to be arranged consecutively in sectors by the number of sectors without overlapping the boundaries of the iron core. Electrical iron core stacking system