KR102028214B1 - Pressing Apparatus and Method for Manufacturing Spiral Stator Core for High Efficient Motor - Google Patents

Abstract

According to an aspect of the present invention, there is provided a pressing apparatus for a stator core, the pressing apparatus including a core base and a plurality of teeth formed radially on the core base, the apparatus comprising: a fixing member installed at a guide post and vertically moving; An equally spaced jig installed under the fixing member and having a plurality of equally spaced alignment pins inserted into the slots; And a pressurizing upper jig disposed below the equal interval jig and including a pressurizing plate pressurizing an upper portion of the stator core.

Description

Pressing Apparatus and Method for Manufacturing Spiral Stator Core for High Efficient Motor}

The present invention relates to an apparatus for producing a stator motor core. More specifically, the present invention is to produce a high quality stator core by pressing while aligning each part of the stator core in the spiral form when the stator core is manufactured in spiral form using an electrical steel sheet of a material suitable for a high efficiency motor. And a pressurization device for a spiral stator core for a high efficiency motor.

In general, a motor is composed of a stator and a rotor. In a motor used for a drum washing machine, a rotating rotor is located outside and a stator is located inside the rotor. In the case of this type of stator, the tooth portion (see 110 in FIG. 3) of the core on which the coil is wound has a core in the form of an outer radial along the outer circumferential surface of the core. This type of core is called an outer type stator core. On the other hand, a core in which the tooth portion of the core is directed toward the center of the circle of the core is called an inner type stator core.

On the other hand, a conventional method for manufacturing a stator core is punched out of an arc-shaped core divided into six equal parts from electrical steel sheets, and the six divided core laminates are formed by stacking a plurality of the cores to be divided into six divided cores. The core stack is welded to form a single core. However, since this method is punched in a curved arc shape on the electrical steel sheet, there are many parts that are punched out and left from the electrical steel sheet, thus requiring a lot of material costs. If the steel sheet can be punched in a straight line, the amount of discarded electrical steel sheet can be greatly reduced.

In order to improve such a problem, Korean Patent No. 10-0911880 (hereinafter referred to as “Previous Patent Document 1”) punches electrical steel sheets in a straight line, and efficiently arranges each process to increase production and reduce the manufacturing cost of spiral cores. The device is starting. In addition, Korean Patent No. 10-0902628 (hereinafter referred to as "Previous Patent Document 2") discloses a device for manufacturing a stator core by winding the punched electrical steel sheet in a spiral form and pressing in two steps.

The electrical steel sheet applied by the apparatus of the prior patent documents 1 and 2 is the cold rolled steel sheet excellent in rollability ("A type electrical steel sheet" hereafter). By the way, in recent years, various attempts have been made to increase the efficiency of the motor. One of such attempts is that the material of the stator core is less rollable than the A-type electrical steel sheet, but the electrical steel sheet has a thin thickness of about 1/2. Electrical steel sheet "). When manufacturing the stator core using the B-type electrical steel sheet, the split and laminated types do not differ significantly from the conventional manufacturing method. However, in the case of spiral form, the physical characteristics of the electrical steel sheet are different so that the existing spiral core It was difficult to apply to the manufacturing apparatus of the.

In order to solve the above problems, the present inventor proposes a pressurization device and a method of a stator core suitable for manufacturing a spiral stator core using a type B electrical steel sheet and applied to a production apparatus of a spiral core having high production efficiency. I would like to.

The present invention is to provide a pressurization apparatus of a spiral stator core suitable for manufacturing a high quality spiral stator core using a type B electrical steel sheet.

The above and other inherent objects of the present invention can be easily achieved by the present invention described below.

In the pressurization apparatus of the stator core according to the present invention is a pressurization apparatus of the stator core consisting of a core base, a plurality of teeth formed radially on the core base,

A fixing member installed on the guide post and performing vertical movement;

An equally spaced jig installed under the fixing member and having a plurality of equally spaced alignment pins inserted into the slots; And

A pressing plate installed at a lower portion of the equally spaced jig and pressing the upper portion of the stator core;

It characterized in that it comprises a pressing upper jig comprising a.

In the present invention, the base outer diameter portion lower alignment pin may be formed alternately with the upper alignment pin guide hole formed on one side thereof.

In the present invention, it further comprises a lifting means provided in the positioning jig, the lifting means is preferably moved the up-down jig in the vertical direction.

In the present invention, the pressurizing upper jig is further provided on the pressurizing lower jig, the pressurizing upper jig is

A fixing member installed on the guide post and performing vertical movement;

An equally spaced jig installed under the fixing member and having a plurality of equally spaced alignment pins inserted into the slots; And

A pressing plate installed at a lower portion of the equally spaced jig and pressing the upper portion of the stator core;

Characterized in that comprises a.

In the present invention, it further comprises a tooth outer diameter alignment plate installed on the outside of the equal interval jig,

A linear moving member installed to linearly move the tooth outer diameter alignment plate; And

A tooth outer diameter alignment unit installed at the linear moving member to align the outermost surface of the stator core;

It may further include.

The present invention has the effect of providing a pressurization apparatus for a spiral stator core suitable for producing a high quality spiral stator core using a type B electrical steel sheet.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing the overall layout of an apparatus for manufacturing a spiral stator core including a pressing device for a spiral stator core according to the present invention.
Figure 2 is a conceptual diagram showing that the electrical steel sheet is punched and supplied to the base material in the manufacturing apparatus of the spiral stator core including the pressing device of the spiral stator core according to the present invention.
3 is a plan view showing a spiral stator core pressurized by the pressurization apparatus of the spiral stator core according to the present invention.
4 is a plan view showing the layout of the winding unit, the rotary table, the pressing unit and the inspection unit of the manufacturing apparatus of the spiral stator core including the pressing apparatus of the spiral stator core according to the present invention.
5 is a plan view showing a pressurized lower jig used in the pressurization device of the spiral stator core according to the present invention.
6 is a cross-sectional view showing the pressurized lower jig of the pressurization device of the spiral stator core according to the present invention.
7 is a plan view showing a positioning jig constituting the pressurized lower jig of the pressing device of the spiral stator core according to the present invention.
8 is a plan view showing an up-down jig constituting the pressurized lower jig of the pressurization device of the spiral stator core according to the present invention.
9 is a plan view showing the inner diameter jig constituting the pressurized lower jig of the pressing device of the spiral stator core according to the present invention.
Fig. 10 is a bottom view showing a pressurized upper jig used in the pressurization device of the spiral stator core according to the present invention.
11 is a cross-sectional view showing a pressurized upper jig of the pressurization device of the spiral stator core according to the present invention.
12 is a bottom view showing an evenly spaced jig constituting a pressurized upper jig of a pressurization device of a spiral stator core according to the present invention.
It is a bottom view which shows the press plate which comprises the press top jig of the pressurization apparatus of the spiral stator core which concerns on this invention.
Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

1 is a plan view showing the overall layout of an apparatus for manufacturing a spiral stator core including a pressurizing device 150 of a spiral stator core 100 according to the present invention.

As shown in FIG. 1, the apparatus for manufacturing a spiral stator core is largely composed of an electrical steel sheet supply part 1, a blanking part 2, an accumulator part 3, and a winding part 4 located on one side of the turntable 5. , Pressurizing section 6, inspection section 7, and varnish coating section 8.

The electrical steel sheet supply unit 1 is a device for continuously supplying the electrical steel sheet having a predetermined width to the blanking unit 2. This electrical steel sheet supply part 1 consists largely of the multi cradle 11, the leveler 12, and the welding apparatus 13. As shown in FIG. Since the spiral stator core used in the present invention is made of B-type electrical steel sheet, unless otherwise specified, "electric steel sheet" is used to mean "B-type electrical steel sheet".

The multi cradle 11 is a device for sequentially supplying an electrical steel sheet having a predetermined width and length. To this end, cradles for supplying a plurality of electrical steel sheets as shown in FIG. 1 are sequentially supplied. The supplied electrical steel sheet is spread out horizontally while passing through the leveler 12. Since electrical steel sheets are usually stored and supplied in roll form, the electrical steel sheets supplied from the cradle have a slight warpage. Therefore, a leveler is installed to smooth out this deflection. Each electrical steel sheet that has passed through the leveler becomes one connected electrical steel sheet while passing through the welding device 13 and is then supplied to the blanking section 2. On the other hand, since the surface of the B-type electrical steel sheet is slippery and thinner than the A-type electrical steel sheet, deformation may occur when a tensile force is applied from one side, a rotation driving means (not shown) is provided at the center of the roll. It is preferable to operate in conjunction with the driving speed of the rotation drive means and the leveler 12 to match.

The blanking unit 2 is a kind of press device, which is a device for machining the steel sheet to be used as a base material of the spiral core by blanking an electrical steel sheet. In FIG. 2, the electrical steel sheet 200 is punched out and supplied as the base material 300.

Referring to FIG. 2, the base 300 of the spiral core is punched into two overlapping forms on the electrical steel sheet 200 as shown in the left figure, and thus, the pair of base materials 300 may be supplied as shown in the right figure. When punched in this manner, it is possible to greatly reduce the amount of electrical steel sheet discarded in the punching process than the conventional split laminate core. In addition, two sets of the base material 300 can be produced by the spiral core at the same time can increase the production.

Referring back to FIG. 1, the electrical steel sheet passing through the press 21 is separated into two sets of base materials 300 while passing through the separator 22 and supplied to the accumulator unit 3, which is the next process.

On the other hand, by winding the base material 300 in a circular shape, the spiral core is completed. Winding and cutting of such a base material is made in the winding unit (4). However, since the speed of the base material 300 supplied through the blanking part 2 is faster than the speed of winding in the winding part 4 and going to the next process, a process for buffering the two processes is necessary. Do. It is the accumulator part 3 which performs this process.

The accumulator part 3 includes a first servomotor for controlling a supply amount of a base material at both sides of a circular first hopper 31 and a second hopper 32 and first and second hoppers 31 and 32 installed at a central portion thereof. 33) and the second servo motor 34. The first hopper 31 is installed to wind and store the base material 300 while rotating and to move up and down. The base material 300 is wound around the first hopper 31 by the operation of the first servo motor 33. And the first hopper 31 is raised. At this time, when the second servomotor 34 operates, the base material 300 is supplied to the winding part 4 while the second hopper 32 is lowered. Accordingly, the first and second hoppers 31 and 32 are wound up to the winding portion 4 by the operation of the second servo motor 33 while winding up and storing a large amount of the base material 300 while raising to an appropriate height. Supply. Conventional apparatus for manufacturing a spiral stator core is applied to one hopper, when one hopper is applied, the height of the hopper is high and unstable due to vibration or shaking during operation, and is easy for the operator to access for maintenance. Did. In order to solve this problem, the present invention employs two hoppers whose height is lower than that of the conventional hopper. An additional servo motor may be applied between the first hopper 31 and the second hopper 32 to smoothly supply two sets of base materials and to operate the two hoppers.

The winding part 4 is a device for winding the base material 300 supplied from the accumulator part 3 horizontally by a predetermined height to form a spiral stator core 100 and then cutting the base material. Winding part 4 is located on one side of turntable 5, pressurization part 6 on the other side of turntable 5, inspection part 7 on the other side, and varnish coating part on the other side (8) is located. Each of these detailed configurations will be described again with reference to FIG. 4 below.

3 is a plan view showing a spiral stator core 100 pressurized by the pressing device 150 of the spiral stator core according to the present invention.

The spiral stator core 100 of the present invention has a form in which a straight base material 300 is wound in a winding direction in the winding portion 4 and stacked in the vertical direction. The stacked stator stator core 10 is pressed by the pressing device 150 according to the present invention to have a final shape of the spiral core. Referring to FIG. 3, the spiral stator core 100 includes a plurality of teeth 110 formed radially around the circular core base 101. The pin hole 105 is formed in the inner direction of the core base 101, and the inner end portion of the pin base 105 in the core base 101 is referred to as the base inner diameter 102. The space between two adjacent teeth is called the slot 115, and the inner end portion of the slot 115, that is, the outer circumferential portion of the core base 101, is called the base outer diameter portion 103. The distal portion of the tooth 110 is the tooth outer diameter 104. When the stator cores 100 are wound and stacked in a spiral form when viewed in a plan view. Since the base inner diameter part 102, the base outer diameter part 103, the tooth outer diameter part 104, and the like are not aligned, it is necessary to press them in the vertical direction while aligning them well. Performing this is the pressurization device 150 according to the invention.

4 is a plan view showing the layout of the winding section 4, the rotary table 5, the pressing section 6, and the inspection section 7 of the apparatus for manufacturing a spiral stator core.

As shown in FIG. 4, a winding part 4 is installed at one side of the rotary table 5. On the other side of the rotary table 5, the pressing portion 6 is provided. Another inspection side 7 of the rotary table 5 is provided. On the other side of the rotary table 5, the varnish coating part 8 is provided.

The winding part 4 is an apparatus which winds the base material 300 supplied from the accumulator part 3 by a predetermined height, and forms the shape of the spiral stator core 100. The winding part 4 is installed on one side of the accumulator part 3. The winding unit 4 is provided with a winding machine 41, which is a rotation means for causing the base material 300 to be sequentially introduced and wound in a circular shape. As the winding jig 42 rotates by the operation of the winding machine 41, a circular spiral stator core has a shape inside the winding jig 42. The spiral stator core, which has been wound, is cut by a cutter (not shown), and then transferred onto the transfer jig 50 on the rotary table 5 installed on one side of the winding part 4. Transfer of the spiral stator core after winding is completed by a transfer (not shown) installed on the winding unit 4 and the rotary table 5.

The turntable 5 is comprised so that it may rotate by one pitch, making 90 degree one pitch. Four pairs of upper portions of the rotary table 5 for transfer to the winding unit 4, the pressing unit 6, the inspection unit 7 and the varnish coating unit 8 provided on each side of the rotary table 5 are provided. The transfer jig 50 is installed. The pair of spiral stator cores 100 transferred from the winding part 4 to the adjacent transfer jig 50 are positioned at one side of the pressing part 6 by a 90 degree clockwise rotation of the turntable 5.

The spiral stator core 100 is transferred to the pressurizing device 150 according to the present invention installed in the pressurizing unit 6 by a transfer (not shown) installed on the pressurizing unit 6 and the rotary table 5. The pressurizing device 150 includes a pressurizing lower jig 60 and a pressurizing upper jig 90 installed above the pressurizing lower jig 60. The pressing lower jig 60 is mounted with a stator core stacked in a spiral form at the winding part 4. The stator core 100 transferred to the pressurizing lower jig 60 is pressurized by the operation of the pressurizing upper jig 90 installed in the vertical upper portion of the pressurizing lower jig 60, and when the pressurization is completed, the transfer jig ( 50). Detailed configurations of the pressure lower jig 60 and the pressure upper jig 90 will be described again. Here, the transfer jig 50 is designed to be separated separately, so that the transfer jig 50 may be transferred in a state where the stator core 100 is inserted into the transfer jig 50 without transferring the stator core 100 pressurized by the transfer. good. By doing in this way, the external appearance damage of the stator core 100 which arises when separating and conveying the stator core 100 in the conveyance jig 50 can be prevented. In this case, the conveying jig 50 has a structure substantially the same as the pressurizing lower jig 60.

When the rotary table 5 rotates 90 degrees clockwise, the transfer jig 50 on which the spiral stator core 100 is seated is located on one side of the inspection unit 7. The stator core 100 is transferred to the inspection jig 70 on the inspection unit by the operation of a transfer (not shown) provided on the inspection unit 7 and the rotary table 5. Of course, as described above, it is also possible to transfer together while the stator core 100 is inserted into the transfer jig 50. The spiral stator core 100 placed on the inspection jig 70 may be inspected for abnormality using the naked eye or an inspection tool, and by using a separate inspection jig, the inspection jig may be positioned above the stator core 100. It is checked whether the stator core 100 is well positioned in the inspection jig. The stator core determined as defective as a result of the inspection is discharged from the varnish application part 8 to the defective product conveyor 83 without varnish application.

The core 100, which has been inspected by the inspection jig 70, is transferred to the transfer jig 50 again, and is again transferred to one side of the varnish coating part 8 by clockwise rotation of 90 degrees. Similarly, the stator core 100 is operated by the transfer (not shown) provided on the rotary table 5 and the varnish coating unit 8, and thus, the core clamps of the varnish coating unit 8 from the transfer jig 50 are removed. 81). The core clamp 81 clamps the stator core 100 in the vertical direction so that the varnish liquid is evenly applied to the surface of the stator core 100 while rotating. When the varnish coating is completed, the good and bad parts are separated and shipped through the good quality conveyor 82 and the bad quality conveyor 83.

5 is a plan view showing the pressurizing lower jig 60 used in the pressurizing device 150 of the spiral stator core according to the present invention, and FIG. 6 is a sectional view.

As shown in Figure 5 and 6, the pressing lower jig 60 of the present invention is installed so as to be able to move in the vertical direction on the positioning jig 61, the positioning jig 61 is installed at the bottom of the uppermost. It consists of an up-down jig 62, and an inner-diameter jig 63 provided in the upper portion of the positioning jig 61 and in the up-down jig 62. As shown in FIG. 5, when the upper pressing jig 90 presses the upper part of the stator core 100 in a state where the stator core 100 is placed on the upper part of the up-down jig 62 and the inner diameter jig 63, the stator core 100 is pressed. The height of the 100 is lowered by pressing, and the stator core 100 is aligned neatly by each core sheet by the alignment pins provided in the respective jigs.

As shown in FIG. 7, the positioning jig 61 includes a plurality of base outer diameter lower alignment pins 61a disposed in a circular shape at regular intervals and a plurality of base outer diameter lower alignment pins 61a alternately disposed. And an elevating means 61c for vertically moving the upper alignment pin guide hole 61b and the up-down jig 62. The base outer diameter lower alignment pin 61a is in contact with a part of the two teeth 110 adjacent to the base outer diameter 103 of the stator core 100, thereby lowering the upper pressing jig 90 of the stator core 100. When pressing, the stator core 100 is guided so that it is aligned.

The upper alignment pin guide hole 61b is a hole whose inner space is empty, and the position thereof is formed at a position corresponding to the position of the base outer diameter upper alignment pin 91b of the upper pressing jig 90. Accordingly, when the upper pressing jig 90 is lowered, the base outer diameter upper alignment pin 91b is inserted into the upper alignment pin guide hole 61b to align the stator core 100. The lifting means 61c is composed of a servo motor or the like to push the up-down jig 62 upward. When the pressurization process is completed, it is necessary to transfer the stator core 100, at which time the up-down jig 62 is raised to allow the transfer (not shown) to easily clamp the stator core 100.

The up-down jig 62 is provided in the upper part of the positioning jig 61 so that up-and-down movement is possible. The lifting means 61c of the positioning jig 61 causes the vertical movement of the up-down jig 62. The up-down jig 62 is formed with a plurality of tooth end position portions 62a and a central space 62b, which is an empty space in the center thereof, as shown in FIG. The tooth distal position portion 62a is where the distal portion of the tooth 110 is located. The central space 62b is where the inner diameter jig 63 is located.

As shown in FIG. 9, the inner diameter jig 63 has a plurality of base portions 63a in which the core base 101 of the stator core 100 is located, and formed at regular intervals inside the base position portions 63a. Base inner diameter portion alignment pin 63b, a plurality of tooth position portions 63c radially formed on the base position portion 63a, and a slot position portion 63d which is a space between two adjacent tooth position portions 63c. . The base inner diameter alignment pin 63b is aligned while guiding the base inner diameter 102 of the stator core. A portion of the tooth 110 of the stator core 100 is positioned above the tooth position portion 63c.

5 and 6 show a state in which the stator core 100 is placed on the pressurized lower jig 60 configured as described above. Since the stator core 100 is distorted when it is wound in the winding part 4, it is necessary to align it neatly. In addition, it is necessary to press from the top because it is wound and stacked form. When the stator core 100 is placed on the pressing lower jig 60, the stator core 100 is aligned to some extent while being positioned between the base outer diameter lower alignment pin 61a and the base inner diameter alignment pin 63b. The pressing upper jig 90 descends while pressing the stator core 100 together.

FIG. 10 is a bottom view showing the pressurized upper jig 90 together with the stator core 100 used in the pressurizing device 150 of the spiral stator core according to the present invention, and FIG. 11 is a sectional view.

The pressing upper jig 90 is installed on the upper portion of the pressing lower jig 60, and lowers the pressing lower jig 60 to serve to press the stator core 100 and to align the same. 10 and 11, the pressing upper jig 90 has a fixing member 94 installed at the guide post 95, an equally spaced jig 91 provided at a lower portion of the fixing member 94, and an equal interval. It consists of a pressure plate 92 provided at the lower part of the jig, and a tooth outer diameter part alignment plate 93 provided at the outer side of the equal interval jig 91.

As shown in FIG. 12, the equally spaced jig 91 has a plurality of equally spaced alignment pins 91a and a plurality of base outer diameter upper alignment pins 91b positioned in the slot 115 of the stator core 100. It includes. The equally spaced alignment pins 91a allow the stator cores to be aligned while maintaining a constant interval of the slots 115. The base outer diameter upper alignment pin 91b is alternately formed with the lower alignment pin guide hole 91c, so that when the upper pressurizing jig 90 descends, the base outer diameter upper alignment pin 91b is pressurized lower jig 60. The lower alignment pin 61a of the base outer diameter portion of the pressing lower jig 60 is inserted into the lower alignment pin guide hole 91c of the upper alignment pin guide hole 61b.

The pressure plate 92 is a portion that directly presses the upper portion of the stator core 100. As shown in FIG. 13, the pressing plate 92 includes a base pressing portion 92a for pressing the core base 101 portion of the stator core 100, a tooth pressing portion 92b for pressing the teeth 115 portion, The first hole 92c through which the equally spaced alignment pins 91a pass, the second hole 92d corresponding to the position of the upper outer alignment pin 91b and the lower alignment pin guide hole 91c of the base, and the base The third hole 92e corresponds to the position of the neck alignment pin 63b.

Referring back to FIGS. 10 and 11, the tooth outer diameter alignment plate 93 is provided with a linear moving member 93a for linearly moving in the radial direction of the stator core 100. A tooth outer diameter alignment portion 93b is formed in the inner diameter direction of the linear moving member 93a to align the tooth outer diameter portion 104. The tooth outer diameter alignment portion 93b has an arc shape and operates to contact the tooth outer diameter portion 104 which is the outermost portion of the stator core 100 by the movement of the linear moving member 93a. In FIG. 10, the number of tooth outer diameter alignment units 93b is illustrated as four, but the number of tooth outer diameter alignment units 93b is not necessarily limited thereto, and may be variously applied as necessary.

An inclined surface 93c is provided on one side of the linear moving member 93a, and a spring 93d is provided on the inner side. The inclined surface 93c moves downward when the operation block 94a installed on the fixing member 94 moves by the operation of the servo motor 94b. The linear moving member 93a moves toward the stator core center while pushing the inclined surface 93c. Move. On the contrary, when the operation block 94a rises, the linear movement member 93a moves to the outer diameter direction of the stator core by the repulsive force of the spring 93d. The tooth outer diameter alignment portion 93b formed on the linear moving member 93a aligns the tooth outer diameter portion 104 of the stator core 100 while repeating the operation of contacting and falling off the tooth outer diameter portion 104. .

Regarding the apparatus for manufacturing a spiral stator core as described above, a process of manufacturing a stator core will be described below.

First, the electrical steel sheet supplied from the electrical steel sheet supply unit 1 is punched out and separated into two sets. Thus, the electrical steel sheet supplied in a straight line is separated into two sets by punching and passed through the accumulator unit 3, and then wound in the winding unit 4 in the shape of a circular stator core.

The wound stator core is transferred to the transfer jig 50 on the rotary table 5. When the transfer is complete, the rotary table rotates by one pitch, and the transfer jig 50 is located at one side of the pressing unit 6. In this state, the stator core in the transfer jig 50 is pressurized.

Thereafter, the stator core located in the transfer jig 50 is positioned in the inspection unit 7 while the rotation table is rotated one more pitch to perform inspection.

Next, the varnish is applied to the stator core while the rotary table 5 is rotated one more pitch to move the stator core to the varnish application part 8. The varnish-coated stator core is shipped through the good quality conveyor 82.

The stator core determined to be defective in the inspection unit 7 is discharged to the defective product conveyor 83 by omitting varnish application.

On the other hand, look at the process of pressing the stator core 100 in the pressing device 150 of the present invention.

First, the stator core 100 wound in a high state without being aligned in a stacked state in a spiral form is positioned in the press lower jig 60 of the pressurizing device 150. At this time, the portion of the base core 101 of the stator core 100 is inserted between the outer diameter lower alignment pin 61a of the pressing lower jig 60 and the base inner diameter alignment pin 63b. At this time, the outer diameter lower alignment pin 61a is in contact with a part of the two teeth 110 adjacent to the base outer diameter 103 of the stator core 100.

Next, while the pressing upper jig 90 descends, the upper portion of the stator core 100 seated on the pressing lower jig 60 is pressed. At this time, each part of the stator core 100 in contact with the outer diameter lower alignment pin 61a and the base inner diameter alignment pin 63b is pressed while being aligned neatly.

The equally spaced alignment pins 91a and the outer diameter upper alignment pins 91b provided on the pressurized upper jig 90 align each part of the stator core 100 together when the pressurized upper jig 90 descends for pressurization. do. The equally spaced alignment pins 91a maintain a constant spacing of the slot portions of the stator core 100, and the upper diameter portion upper alignment pins 91b are two teeth adjacent to the base outer diameter portion 103 of the stator core 100. Evenly space the gaps.

When the pressing upper jig 90 is lowered to the lowermost part, the tooth outer diameter part 104, which is the outermost part of the stator core 100, is aligned by the repeated operation of the outer diameter alignment part 93b provided in the pressing upper jig 90. do.

When the alignment is completed, the pressing upper jig 90 is raised again, and the stator core 100 placed on the pressing lower jig 60 remains in the aligned and pressed state.

It should be noted that the detailed description of the present invention described above is merely illustrative for the purpose of understanding the present invention, and is not intended to limit the scope of the present invention. The scope of the invention is defined by the claims appended hereto, and it should be understood that all simple modifications and changes within this scope are within the scope of the invention.

1: electric steel sheet supply part 2: blanking part
3: accumulator part 4: winding part
5: rotary table 6: pressurization part
7: Inspection part 8: Varnish coating part
11: Multi Cradle 12: Leveler
13: welding device 21: press
22: separator 31: first hopper
32: second hopper 33: first servo motor
34: second servo motor 41: winding machine
42: winding jig 50: transfer jig
60: pressurized lower jig 61: positioning jig
61a: Base outer diameter lower alignment pin 61b: Upper alignment pin guide hole
61c: lifting means 62: up-down jig
62a: tooth distal position 62b: central space
63: inner diameter jig 63a: base position
63b: Base inner diameter alignment pin 63c: Teeth position
63d: slot position
81: core clamp 82: good quality conveyor
83: reject conveyor
90: pressurized upper jig 91: equidistant jig
91a: Equally spaced alignment pin 91b: Base outer diameter upper alignment pin
91c: Lower alignment pin guide hole 92: Pressure plate
92a: base pressing portion 92b: tooth pressing portion
92c: first hole 92d: second hole
92e: third hole 93: tooth outer diameter alignment plate
93a: linear moving member 93b: tooth outer diameter alignment portion
93c: slope 93d: spring
94: fixing member 94a: operation block
94b: servo motor 95: guide post
95: guide post
100: stator core 101: core base
102: base inner diameter 103: base outer diameter
104: tooth outer diameter 105: pin hole
110: tooth 115: slot
150: pressurizing device 200: electrical steel sheet
300: base material

Claims (2)

In the pressing device of the stator core consisting of a core base, a plurality of teeth formed radially on the core base,
A fixing member installed on the guide post and performing vertical movement;
An equally spaced jig installed under the fixing member and having a plurality of equally spaced alignment pins inserted into a slot that is a space between the teeth and the teeth;
A pressing plate installed at a lower portion of the equally spaced jig and pressing the upper portion of the stator core; And
A tooth outer diameter alignment plate installed at an outer side of the equidistant jig;
Including a pressurized upper jig made of,
The tooth outer diameter alignment plate is
And a straight moving member for linearly moving in the radial direction of the stator core.
The tooth outer diameter aligning portion has a circular arc shape, and acts to contact the tooth outer diameter portion by the movement of the linear movement member, the pressing device of the stator core.
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