KR100520137B1 - Stator iron core member and method for manufacturing stator iron core using the same, Stator iron core member and stator iron core using the same - Google Patents

Abstract

As a development of a method for manufacturing a steel core member and a method of manufacturing a stator iron core using the steel strip, which can use a narrow steel strip, so that the loss is low and the stator iron core is not deformed.

Continuously supply the steel strip to the die cutting machine, die-cut in two rows of zigzag shape in the width direction, and lay the required number of rotor iron core members by die-cutting the necessary parts in the longitudinal direction in order. When the rotor iron core is made, and then the outer peripheral portion in which the rotor iron core member is die-cut is die cut again in order to make the stator core member having a plurality of tightening portions, the tightening portion is positioned at a specific position. The die is cut at the same time as the die is cut in advance, and then the outer periphery (outer circumference) is die cut, and a cut portion is provided on the outer periphery of the stator iron core member corresponding to the place where the tightening portion is provided.

Description

Stator iron core member and manufacturing method of stator iron core using same, Stator iron core member and stator iron core using same

The present invention relates to a stator iron core member and a stator iron core using the same and a method for manufacturing the same, and more particularly, to stator iron core member is manufactured by die cutting efficiently and efficiently in a steel sheet, and for stator iron core The present invention relates to a method for manufacturing a stator iron core in which a required number of members are laminated to produce a stator iron core, and a stator iron core member and a stator iron core manufactured by the method.

The cross section of the conventional hermetic compressor is shown in FIG.

50 is an airtight container having an oil tank 51 in which oil is stored at the bottom, in which the transmission element 52 is accommodated in the upper side, and the rotary compression element 53 is accommodated in the lower side, respectively.

The transmission element 52 is comprised from the rotor iron core 55 attached to the rotating shaft 54, and the stator iron core 57 etc. which formed the oil return hole 56 in the outer periphery.

58 is an air gap formed between the outer circumference of the rotor iron core 55 and the inner circumference of the stator core 57.

59 is a coil end of a winding embedded in the stator core 57.

The rotary compression element 53 is a roller 62 for rotating the inside of the cylinder 60 by the eccentric portion 61 of the cylinder 60 and the rotating shaft 54, and the roller 60 in contact with the roller to divide the inside of the cylinder 60. A vane 63, an upper bearing 64 for sealing an opening of a cylinder, a lower bearing 65, a discharge valve 66 provided in the upper bearing, and a cup muffler covering the discharge valve. 67).

68 is a discharge hole provided in the cup muffler 67.

69 is a refrigerant discharge pipe installed in the upper center of the sealed container 50 by sealing the upper end by bonding the end cap 70.

71 is the accumulator, and the arrow indicates the flow of the refrigerant.

In the hermetic compressor of this structure, the refrigerant compressed by the rotary compression element 53 passes through the air gap 58 of the transmission element 52 and is sent out to the upper portion of the transmission element.

Then, the coolant sent to the upper portion of the transmission element 52 is separated from the oil contained therein by the winsim force by the rotation of the rotor iron core (55).

This separated oil is scattered on the stator core 57 side.

The refrigerant gas is discharged from the refrigerant discharge pipe 69 to the outside of the sealed container 50. The separated oil is returned from the oil return hole 56 formed in the outer circumference of the stator iron core 57 to the oil tank 51 of the sealed container 50.

It is explanatory drawing explaining the conventional die cutting machine for manufacturing the rotor iron core and the stator iron core.

In Fig. 9, 79 denotes a die cutting machine for manufacturing the rotor iron core and the stator iron core, and the die cutting machine 79 shows a plurality of die cutting frames (80 (in the first row) 1) to 84 (1) and 80 (2) to 84 (2) of the second row] and a plurality of die cutting frames (86 (1) to 88 (1) of the first row and the first to make the stator core member) Two rows of 86 (2) to 88 (2) are provided, and a plurality of die cutting arms corresponding to each of the above frames is provided at the bottom.

The steel plate strip S is continuously supplied between the frame and the female frame, and the frame is moved up and down to die-cut the required portions in a jig-zag shape and in the longitudinal direction in two rows in the width direction of the steel plate strip S. A rotor iron core member having a tightening portion of is manufactured.

85 (1) and 85 (2) are female frames for making a rotor iron core by pressurizing and laminating | stacking the number of rotor iron core members as needed, and 89 (1) and 89 (2) show the outlet of a rotor iron core.

Subsequently, the outer peripheral portion of the steel strip S, which is die-cut of the rotor iron core member, is again cut in necessary parts to make a stator iron core member having a plurality of tightening parts, and the necessary number of stator iron core members are laminated to form a stator iron core. Make.

91 (1) and 91 (2) pressurize and stack the required number of stator core members, and the female frame for making stator cores, 90 (1) and 90 (2) are the outlets of the stator cores, and (a) do not die cut. Indicates a free point.

FIG. 10: is a top view which shows the state which die-cut steel plate strip S using the die cutting machine 79. As shown in FIG.

In the drawing, reference numerals 80 (1) to 84 (1) and 80 (2) to 84 (2) denote members for rotor iron cores obtained by die-cutting the necessary parts with the corresponding frames. 86 (1) to 88 ( 1) and 86 (2) -88 (2) represent the stator iron core member by which the part required by the said frame was die-cut.

In the drawings, the same reference numerals as those of FIG. 9 indicate the same elements.

K1 and K2 represent tightening parts installed on the rotor iron core member, and K3 and K4 represent tightening parts installed on the stator iron core member.

In the figure, the unsigned part shows the die cut trace.

92, 92, 93, and 93 are guide holes for supplying the steel strip S at predetermined intervals.

(A)-(b) of FIG. 11 are the details of the rotor iron core member which die-cut the necessary parts by the frame 80 (1)-83 (1) and 80 (2)-83 (2) of the die cutting machine 79. It is explanatory drawing explaining the.

(A) (92) and (92) of FIG. 11 are guide holes for supplying steel strip S at predetermined intervals, and K1 and K2 of FIG. 11 (C) are tightening portions provided in the rotor core member. Indicates.

12 (a) is a spare part which does not die-cut in the 2nd row, and the 1st row pressurizes the rotor core member and the rotor core member which die-cut the outer periphery with the frame 84 (1). It is explanatory drawing which shows the armature 85 (1) to laminate | stack and the outlet 89 (1) of the rotor iron core.

(b), the first row shows the trace of die-cutting the rotor core member, the second row presses and stacks the necessary number of rotor iron core members and the rotor core core die-cut the outer circumference with the frame 84 (2). It is explanatory drawing which shows the armtle 85 (2) and the lead outlet 89 (2) of a rotor iron core.

(C) is explanatory drawing which shows the die cut trace, (d) is the required number which includes four fastening parts K3 and K4 by frame 86 (1) and 86 (2) of a 1st row and a 2nd row, respectively. It is explanatory drawing which shows the detail of the stator iron core member die-cut.

(93) and (93) of (C) are guide holes which were die-cut again in order to supply the steel strip S at predetermined intervals.

FIG. 13 (a) is an explanatory diagram showing the details of the stator iron core member in which necessary parts are die-cut into the frames 87 (1) and 87 (2) in the first row and the second row, respectively.

(b) shows the second row in the spare part without die cutting, the first row in the frame 88 (1), the stator iron core member die-cut in the outer periphery, and the arm frame 91 for pressing and stacking the stator iron core member ( 1) and explanatory drawing which shows the drawer 90 (1) of a stator iron core.

(C) shows that the first row is die cut, the second row is frame 88 (2), and the outer frame is die-cut for stator core members whose dies are die-cut, and the frame 91 (2) for pressurizing and stacking the necessary stator core members. ) And the outlet 90 (2) of the stator iron core.

Fig. 14 shows the stator iron core member in which the necessary parts are die-cut into the frames 87 (1) and 88 (1) in the first row, and the necessary parts are cut by the frames 86 (2) and 87 (2) in the second row. It is explanatory drawing which shows the relationship with the stator iron core member.

15A is an explanatory diagram showing an example of a tightening portion, and (b) is an explanatory diagram showing another example of the tightening portion.

Fig. 16A is an explanatory diagram showing an example of a rotor iron core member manufactured by the above-described method, and (b) is an explanatory diagram showing a rotor iron core in which the required number of rotor iron core members are pressed and laminated.

FIG. 17A is an explanatory diagram showing an example of a stator core member manufactured by the above-described method, and (b) is an explanatory diagram showing a stator iron core in which the necessary number of stator core members are pressed and laminated. K in the figure indicates a tightening part.

However, as shown in Fig. 14, the outer circumferences of the stator iron core members (radius r) 86 (2) and 87 (1) in the first and second rows, the outer circumferences of 87 (2) and 87 (1), Since the outer circumferences of 87 (2) and 88 (1) are in contact with each other leaving a cutting margin, it is necessary to use a wide steel strip to manufacture them, which causes a problem of large loss of steel strip. There is.

As shown in Fig. 14, the outer circumference of the stator core member corresponding to the position where the four tightening portions (for example, the four tightening portions K3 of the stator core member 87 (1)) are provided has a radius r. Since the die is cut in an arc, the stator core manufactured by pressurizing and stacking the necessary number of stator core members is used as a power transmission element, because of internal stress or distortion caused by die cutting of the tightening part. There is a problem that the outer periphery of the stator core member corresponding to the place where the tightening part is installed swells, or the stator core itself deforms with it.

18 (a) to 18 (c) are explanatory views for explaining swelling of the outer circumference of the stator core member corresponding to the location where the tightening portion is provided.

(a) is explanatory drawing which shows a part of outer periphery of a stator core member,

(b) is explanatory drawing which shows the fastening part provided in the predetermined part of the outer periphery vicinity of this stator iron core member,

(C) indicates that when the stator core manufactured using the stator core member is actually used as a transmission element, the stator core member corresponding to the point provided in the tightening portion due to internal stress caused by die cutting of the tightening portion or twisting. It is explanatory drawing which shows that a deformation | transformation part arises in an outer periphery.

An object of the present invention is to use a narrow steel strip, so that the loss of the steel strip can be reduced and the outer circumference of the stator iron core member corresponding to the place where the tightening portion is installed due to internal stress due to die cutting of the tightening portion, or warping The present invention provides a stator core member and a method for manufacturing a stator iron core using the same, which provide no problem such as swelling or deforming the stator core itself accordingly, and provide a stator iron member manufactured in this way and a stator iron core using the same.

The present inventors have intensively researched to solve these problems, and as a result, the tightening part is placed at a specific position of the stator core member, and after cutting the fastening part in advance, die cutting the outer circumference and installing the tightening part at the same time The present invention has been made by discovering that the above problems can be solved by installing a cut portion on the outer periphery of the stator core member corresponding to one place.

The invention of claim 1 of the present invention is a die cutting machine for manufacturing a rotor iron core and a stator iron core by equipping a plurality of die cutting frames on an upper portion, a plurality of die cutting arms on a lower portion, and operating the frame up and down. For rotor iron cores having a plurality of fastening portions formed by continuously supplying a steel sheet between the frame and the female frame, die cutting the necessary portions in a zigzag shape in two rows in the width direction of the steel sheet, and sequentially in the longitudinal direction. When pressurizing and laminating the necessary number of members to make a rotor iron core, and then die-cutting the necessary parts of the outer periphery of the die-cut rotor core member again in order to make a stator iron core member having a plurality of fasteners, After die-cutting the required part including the pregnant woman, the outer periphery is taken out to make the stator core member, and the necessary number of stator core members As a layer to a member for a stator iron core to make the stator core and manufacturing method of the stator iron core used in fall,

Lines forming the centers of the stator core members die-cut in the second row of the two rows are required to form the centers of the die-cut members. The outer circumferences of the stator core members in the first and second rows are parallel to the longitudinal direction of the steel strip, leaving the cutting margins with each other, and the outer circumference of the sheet margins in the terminal portion in the width direction of the steel strip. A centerline intersecting the outer periphery of these stator core members is left and in contact with each other, and a center line forming the center of the stator core member in the first row and the center of the stator core member in the second row in contact with the stator core core leaving a cutting margin. A cut portion is provided at a right angle to the center line at a position, and the cutout portion is placed on the outer edge of the stator core member corresponding to the cut portion. At a right angle with respect to the core wire is a manufacturing method for a stator iron core used for the stator iron core member, and it, characterized in that a of the throttle.

In the manufacturing method of Claim 2 of this invention, in the manufacturing method of Claim 1, when making the stator iron core member which has four said fastening parts, and provided with four fastening parts, at least one fastening part is among four. And die cutting in the next or subsequent process.

According to a third aspect of the present invention, in the manufacturing method according to claim 1 or 2, a line drawn at right angles in the longitudinal direction of the steel sheet is cut at the center of the stator core member where a necessary part is die cut. Four points perpendicular to the line at points intersecting the outer circumference of the iron core member and at the center of the stator iron core member at the center of the stator iron core member in parallel to the outer circumference of the stator iron core member An oil return cut part is provided.

The invention of claim 4 of the present invention is a stator iron core member, which is manufactured by the manufacturing method of claim 1 to claim 3.

The invention of claim 5 of the present invention is a stator iron core, which is produced by the manufacturing method described in claims 1 to 3.

(Example)

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing explaining the die cutting machine for manufacturing the rotor iron core and the stator iron core of this invention.

In Fig. 1, 1 represents a die cutting machine for manufacturing the rotor iron core and the stator iron core, and the die cutting machine 1 is a plurality of die cutting frames (1 (1) in the first row) for making the rotor iron core member on the top. 4 (1) and 1 (2) to 4 (2) in the second row] and a plurality of die cutting frames for making stator core members [7 (1) to 9 (1) in the first row and the second row 7 (2) to 9 (2)], and a plurality of die cutting arms corresponding to each of the frames is provided at the bottom.

The steel frame strip Sa is continuously supplied between the frame and the female frame, and the frame is operated up and down. A rotor iron core member having a pregnant woman is manufactured.

5 (1) and 5 (2) are female frames for pressurizing and laminating the necessary number of rotor iron core members to form a rotor iron core, and 6 (1) and 6 (2) represent outlets of the rotor iron core.

Subsequently, the outer peripheral part which die-cut the rotor iron core member is again die-cut, and the necessary parts are sequentially cut to form a stator iron core member having a plurality of tightening portions, and the necessary number of stator iron core members are laminated to make a stator iron core.

10 (1) and 10 (2) are female frames for making a sdata iron core by pressing and stacking the necessary number of stator core members, and 11 (1) and 11 (2) are outlets of the stator iron core, Indicates a spare point.

FIG. 2: is a top view which shows the state which carried out die cutting of the steel plate strip Sa in order using the die cutting machine 1. FIG.

In the drawing, reference numerals 1 (1) to 4 (1) and 1 (2) to 4 (2) denote members for rotor iron cores in which the necessary portions of the corresponding frame are die cut, and 7 (1) to 9 (1). And 7 (2) to 9 (2) denote stator iron core members in which the necessary parts are die-cut in the corresponding frame. K represents a tightening part, and the same code | symbol as FIG. 1 in a figure shows the same thing.

Unsigned points in the figures indicate the die cut traces.

(12), (12), (13) and (13) are guide holes for supplying steel strip Sa at predetermined intervals.

(A)-(c) of FIG. 3 shows the rotor iron core member which die-cut the necessary parts by the frame 1 (1)-3 (1) and 1 (2)-3 (2) of the die cutting machine 1. It is explanatory drawing explaining a detail.

(12) and (12) of (a) are guide holes for supplying steel strip Sa at predetermined intervals. In the step (C), five fasteners K are provided.

(d), the second row is a spare part without die cutting, the first row pressurizes the rotor iron core member whose outer circumference is die-cut with the frame 4 (1) of the die cutting machine 1, and the rotor iron core member, It is explanatory drawing which shows the armature 5 (1) to laminate | stack and the outlet 6 (1) of the rotor iron core.

(A) of FIG. 4, the 1st row shows the trace which die-cutted (the spare part which does not die-cut), and the 2nd row shows the rotor which the outer periphery die-cut by frame 4 (2) of the die cutting machine 1 It is explanatory drawing which shows the armature 5 (2) which pressurizes and laminates an iron core member, the rotor iron core member, and the outlet 6 (2) of a rotor iron core.

(b) shows the die cut trace (excess point without die cutting), (c) shows that the first row is frame 7 (1) and the second column is frame 7 (2). It is explanatory drawing explaining the detail of the stator iron core member.

In the first row of stator iron core member 7 (1), four fasteners K are installed in four places, and there are three places in the second row of stator iron core member 7 (2) because there is no room to install a frame for die cutting the fastener. Only the fastener K was installed.

(d) is explanatory drawing explaining the detail of the stator iron core member which die-cut the location required by the frame 8 (1) in the 1st row, and the frame 8 (2) in the 2nd row.

In the second row, the remaining one tightening part K is provided.

(13) and (13) of (b) are guide holes which were die-cut again in order to supply steel strip Sa at predetermined intervals.

FIG. 5 (a) shows that the second row is a spare part without die cutting, and the first row is pressurized and laminated on the stator iron core member whose outer circumference is die cut with the frame 9 (1), and the stator iron core member. It is explanatory drawing which shows the armrest 10 (1) and the outlet 11 (1) of the stator iron core.

(b) In the second row, the frame 9 (2) is a frame for cutting the stator core, whose outer periphery is die cut, the number 10 of the frame 10 (2) for pressing and stacking the stator core, and the outlet 11 (2) of the stator core. ) Is an explanatory diagram showing. The first column shows the die cut trace.

Fig. 6 shows a stator core member whose dies are cut into the necessary portions of the frames 8 (1) and 9 (1) in the first row, respectively, and the necessary portions of the frames 7 (2) and 8 (2) in the second row are die-cut. It is explanatory drawing which shows the relationship of the cut stator core member.

In Fig. 6, the lines a forming the centers of the stator core members 8 (1) and 9 (1) in the first row and the necessary positions in the second row are die cut to the stator core members 7 (2) and 8 (2). The lines b that form the centers of are parallel to the longitudinal direction of the steel strip Sa (a width of about 226,0 mm).

The outer periphery of the stator core members 8 (1), 9 (1), 7 (2), and 8 (2) in the first and second rows are separated from each other, leaving cutting margins (about 0.95 mm to 1.0 mm). At the same time, the outer circumference is in contact with the cutting edge (about 0.95 mm to 1.0 mm) leaving the terminal portion in the width direction of the steel strip Sa.

For example, the center of the stator core member 8 (1) in the first row and the stator core members 7 (2) and 8 (2) of the second row in contact with the stator core member while leaving a cutting margin. Cut portions f and h at right angles to the center line d are formed by installing cut portions e and g at right angles to the center line C at a point where the center lines C and d forming the center intersect the outer periphery of the stator core member 8 (1). And tightening parts Ke, Kf, Kg, and Kh at right angles to the center lines C and d on the outer edge of the stator core member 8 (1) corresponding to the cut parts e, f, g, and h. Doing.

The other cuts 9 (1), 7 (2), and 8 (2) for stator iron cores are provided in the same manner as the stator core core member 8 (1).

Cut portions such as e, f, g, and h form oil return holes in the outer periphery of the stator core.

For example, the line i drawn at right angles in the longitudinal direction of the steel strip Sa at the center of the stator core member 8 (1) is perpendicular to the line i at a point where the line i intersects the outer circumference of the stator core member 8 (1). The oil return cut portions Ki and kj are provided, and the line a parallel to the longitudinal direction of the steel strip Sa at the center of the stator core member 8 (1) is the outer periphery of the stator core member 8 (1). Cut section K for oil return at a right angle to the line a at the point intersecting the And K1 are installed.

In this example, the angle Θ made by centerline d and line i was about 29 ° 18 '.

The other stator iron core members 9 (1), 7 (2) and 8 (2) are provided with four oil return cut parts in the same manner as the stator iron core member 8 (1).

Cut portions, such as Ki, Kj, Kk and K1, form an oil return hole on the outer periphery of the stator core.

Fig. 7A is an explanatory diagram showing an example of the stator core member of the present invention, and (b) shows an example of the stator core of the present invention in which the required number of stator core members of the present invention is pressed and laminated. It is explanatory drawing.

In the present invention, the number, dimensions, shapes, and the like of tightening portions such as Ke, Kf, Kg, and Kh are not particularly limited.

The conventional tightening part as shown in FIG. 15 can also be used.

The number is two or more, but if the number is too large, it takes time to cut the die, the loss is large, and the electronic properties of the stator core are adversely affected, so four is suitable.

In the present invention, dimensions, shapes and the like of the cut portions e, f, g, h and the oil return cut portions Ki, Kj, Kk and Kl are not particularly limited.

The larger the cut area, the better the oil return. However, since the adverse effect is caused on the electronic characteristics of the stator core, it is appropriate to make a decision in consideration of such circumstances.

After die-cutting the fastening parts such as Ke, Kf, Kg, and Kh arranged at a specific position as described above, it is possible to use a narrow steel strip by die cutting the entire outer periphery including the cut parts e, f, g, and h. The loss of the steel strip can be reduced.

For example, in order to manufacture a member for a stator core having an outer diameter of 121.7 mm shown in Fig. 7A, a steel sheet having a width of 227, 5 mm must be used, and the loss rate of the steel sheet at this time is about 40 to 50. However, according to the present invention, in order to manufacture stator core members having the same outer diameter, the steel strip may be about 226 mm to about 224 mm in width, and thus, the loss rate of the steel strip may be reduced by about 40%.

 In addition, the stator iron core member of the present invention and the stator iron core using the same have cut portions e, f, g, and h corresponding to locations with tightening portions such as Ke, Kf, Kg, and Kh when actually used. Even if there is a deformation of, there is no deformation of the outer periphery of the stator core member as shown in Fig. 18, which is a substantial obstacle, and the stator core itself has no deformation that can be a substantial obstacle.

Narrow steel strips can be used, so the loss of steel strips can be reduced, and the outer periphery of the stator core member corresponding to the part with the tightening portions is swelled due to internal stress or distortion caused by die cutting of the tightening portions. Therefore, it is possible to provide a stator core member and a stator core using the same without problems such as deformation of the stator core itself.

1 illustrates a rotor core and a stator core of the present invention.

       An explanatory diagram illustrating a die cutting machine for manufacturing.

FIG. 2 is a diagram illustrating die cutting of steel strips in sequence using the die cutting machine of FIG.

       Top view showing status.

(A)-(c) of FIG. 3 show the iron core member by which the necessary part was die-cut,

        (d), the second column is a clearance point without die cutting,

        The first row is frame 4 (1), with the outer circumference die cut.

        Pressing and stacking the rotor iron core member and the rotor iron core member

        Explanatory drawing which shows the armature 5 (1) and the lead opening 6 (1) of a rotor iron core.

(A) of FIG. 4, the first row shows the die cut trace, and the second row shows the frame 4 (2).

       Rotor core member whose outer circumference is die cut, pressurizing the rotor core member,

       Represents the filling frame 5 (2) and the outlet 6 (2) of the rotor iron core.

       It is explanatory drawing, (b) the trace which die-cut, and (c)-(d) are necessary places

       Explanatory drawing explaining the detail of the die-cut stator iron core member.

(A) of FIG. 5, the 2nd column shows the clearance which does not die-cut, and the 1st column shows

       Stator iron core member whose outer circumference is die-cut with frame 9 (1), its stator

       Outlet of arm frame 10 (1) and stator iron core for pressing and stacking iron core members

       It is explanatory drawing which shows 11 (1), and (b) shows the 2nd column as frame 9 (2).

       Stator iron core member whose outer circumference is die cut, and the stator iron core member

       Necessary pressurization, stacking arm 10 (2) and outlet of stator iron core

       It is explanatory drawing which shows 11 (2), and the 1st column shows the trace which die-cut.

       Indicates.

Fig. 6 is a stator iron core member 8 (1) in which necessary portions of the first row are die cut.

        And 9 (1) and for stator iron cores in which the necessary points of the second row are die cut.

        It is explanatory drawing which shows the relationship of the member 7 (2) and 8 (2).

Fig. 7A is an explanatory diagram showing an example of the stator core member of the present invention.

       (b) is a pattern in which the required number of stator core members of the present invention is pressed and laminated

       Explanatory drawing which shows the example of the stator core of this invention.

8 is a cross-sectional view of a conventional hermetic compressor.

9 is a die cut for manufacturing conventional rotor iron and stator iron cores.

       An explanatory diagram illustrating the machine.

10 shows a state of die cutting a steel strip using a conventional die cutting machine.

        Indicating top view.

11 (a) to 11 (d) are die cut parts required by a conventional die cutting machine.

         Explanatory drawing explaining the detail of a rotor core member.

In Fig. 12A, the second row is a spare part without die cutting, and the first row is frame 84 (1).

              Rotor core member whose outer periphery is die cut, and the rotor core member

              The armature 85 (1) to pressurize and chuck and the outlet 89 (1) of the rotor iron core are

              It is explanatory drawing to show,

       (b) the second row is the rotor iron core member whose outer periphery is die-cut into the frame 84 (2),

              Female frame 85 (2) for pressurizing and laminating the required number of rotor iron core members

               And explanatory drawing which shows the outlet 89 (2) of a rotor iron core,

              (c) represents the die cutting trace,

       (d) shows that the required parts including four fasteners K3 and K4 are die cut.

              Explanatory drawing which shows the detail of the stator iron core member.

FIG. 13 (a) shows the details of the stator core member having the die cut where necessary;

              It is explanatory drawing to show,

        (b) indicates that the second row is a spare part without die cutting, and the first row is frame 88 (1).

              Stator iron core member with die cut outer periphery, its stator

              Arm frame 91 (1) for pressing and stacking iron core member and stator iron core

              It is explanatory drawing which shows the outlet 90 (1),

        (c) shows the first cut of the die cut, and the second shows the frame 88 (2).

              Stator iron core member with die cut outer periphery, for stator iron core

              Female frame 91 (2) and stator for pressing and stacking the required number of members

              Explanatory drawing which shows the lead opening 90 (2) of an iron core.

Fig. 14 is a stator iron core member 87 (1) in which necessary parts of the first row are die cut;

         88 (1) and stator iron core member die-cut in the required position in the second row

         Explanatory drawing which shows the relationship with 86 (2) and 87 (2).

15A is an explanatory diagram showing an example of a tightening unit.

         (b) is explanatory drawing which shows the other example of a fastening part.

FIG. 16A is an explanatory diagram showing an example of a conventional rotor iron core member. FIG.

        (b) is a rotor which pressurizes and laminated | stacked the conventional rotor iron core member as needed.

                An explanatory diagram showing the iron core.

17A is an explanatory diagram showing an example of a conventional stator core member.

        (b) pressurize and stack the necessary number of conventional stator core members;

               Explanatory drawing which shows the conventional stator core.

(A)-(c) is the stator core member corresponding to the location in which the fastening part was provided.

                    Explanatory drawing explaining swelling (expansion) of the outer periphery.

Explanation of symbols on the main parts of the drawing

1: die cutting machine

1 (1)-4 (1), 1 (2)-4 (2), 7 (1)-9 (1), 7 (2)-9 (2); Frame

5 (1), 5 (2), 10 (1), 10 (2); Female frame

6 (1), 6 (2), 11 (1), 11 (2); Outlet

e, f, g, h; Cut

Ki, Kj, Kk, K1; Cut part for oil return,

Ke, K _f , Kg, Kh; Fastener

S, Sa; Steel strip

Claims (5)

         The male frame and the die of the die cutting machine for manufacturing a rotor iron core and stator iron core by having a plurality of die cutting male frame in the upper portion, a plurality of die cutting female frame in the lower portion, and operating the frame up and down Continuously supply the steel strip between the arms, stack the required number of rotor iron core members with a plurality of fasteners made by zigzag of two rows in the width direction of the steel strip, and die-cutting the necessary parts in the longitudinal direction in order. When making a rotor iron core, and then die-cutting the necessary parts of the outer peripheral part which die-cut the rotor iron core member again in order to make the stator iron core member which has a plurality of tightening parts, it is necessary to first die the necessary parts including a plurality of tightening parts. After cutting, the outer periphery is die cut to make the stator core member, and the necessary number of stator core members are laminated As a method for manufacturing a stator core member and the stator iron core to make the mutator using the same iron core,     Lines connecting the centers of the stator iron core members die-cut in the second row to the centers of the stator core member die-cut in the first row of the two rows are formed. The outer circumferences of the stator core members in the first and second rows are parallel to the longitudinal direction of the steel strip and are left in contact with the cutting margins, and the outer circumference is provided with the cutting margin in the terminal portion in the width direction of the steel strip. The center line which forms the center of the stator core member of the first row and the center of the stator core member of the second row which leaves and cuts a margin on the stator core member in the first row intersects the outer periphery of these stator core members. The cut portion is provided at a right angle to the center line at a position where the cut portion is placed on the outer edge of the stator core member corresponding to the cut portion. Member for a stator iron core, characterized in that a said throttle at right angles to the center line and a method for manufacturing a stator core using the same.         The method of claim 1, And 4 the clamping portion, and a stator iron core, characterized in that the die-cut in four tank to create a member for a stator iron core installed pregnant women, 4, out of at least one fastening portion, and then processes, or the subsequent step of Manufacturing method.         The method according to claim 1 or 2,         The length of the steel strip at the center of the stator iron core member where the line drawn at right angles to the longitudinal direction of the steel strip at the center of the stator core core member where the necessary part is die cut is crossed with the outer circumference of the stator core core member. A method for manufacturing a stator iron core, wherein four oil return cut portions are provided at right angles to the line at a point where a line drawn in parallel to the direction intersects the outer circumference of the stator iron core member.         A stator core member, which is manufactured by the manufacturing method according to claim 1.         A stator iron core manufactured by the manufacturing method according to claim 1 or 2.

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