CN1110121C - Steel sheets for stator cores, stator cores with the steel sheets and munufacture thereof - Google Patents
Steel sheets for stator cores, stator cores with the steel sheets and munufacture thereof Download PDFInfo
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- CN1110121C CN1110121C CN97112716A CN97112716A CN1110121C CN 1110121 C CN1110121 C CN 1110121C CN 97112716 A CN97112716 A CN 97112716A CN 97112716 A CN97112716 A CN 97112716A CN 1110121 C CN1110121 C CN 1110121C
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- steel disc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
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- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Compressor (AREA)
Abstract
To reduce the loss in a steel strip, so as to eliminate the deformation of a stator core itself by arranging caulking sections at specific locations of a member for stator core and, after punching the caulking sections, providing cut sections on the outer periphery of the member for stator core, corresponding to the punched caulking section by punching the outer periphery of the member for stator core. Cut sections (e), and (g), (f) and (h) are provided perpendicular to center lines (c) and (d), connecting the center of a member 8(1) for stator core and members 7(2) and 8(2) for stator core which are brought into contact with the member 8(1), by leaving cutting margins at the locations where the lines (c) and (d) intersect the outer periphery of the member 8 (1), and caulking sections Ke, Kf, Kg, and Kh are provided perpendicular to the lines (c) and (d) on the outer edge of the member 8(1), corresponding to the cut sections (e), (f), (g), and (h). Since the entire outer periphery of the member 8(1) is punched, including the cut sections (e), (f), (g), and (h) after the caulking sections Ke, Kf, Kg, Kh, etc., arranged at specific positions have been punched, a narrow steel strip can be used.
Description
The present invention relates to the stator core steel disc and with the manufacture method of the stator core of this steel disc; And stator core steel disc and with the stator core of this steel disc.More detailed saying just is to use continuously, punching process is made the stator core steel disc from steel band efficiently, and this steel disc is stacked together and make the manufacture method of stator core by the sheet number of being wanted.And stator core steel disc and the stator core of using the method to produce.
The section of existing hermetic compressor shows as Fig. 8:
Symbol 50 expression bottoms have the closed container of oil storage tank 51 among the figure, above this internal tank, have motor drive mechanism 52, rotary compressor structure 53 is equipped with in the below, and the stator core 57 that motor drive mechanism cuts out oil return ditch 56 by the rotor core 55 and the periphery of interior dress rotating shaft 54 etc. is formed.The airspace of reserving between 58 interior weeks for the outer border of rotor core 55 and stator core 57.59 coil terminals for the inner winding of stator core.53 are the rotation pressue device, and it is by forming with lower member: cylinder 60, the eccentric block 61 of rotating shaft 54 and by its driving along the rotating cylinder 62 of cylinder interior, and be connected with cylinder and blade 63 that space segmentation in cylinder 60 inner chambers is opened; The upper bearing (metal) 64 of the peristome at closed cylinder two ends and lower bearing 65; Cup-shaped muffler 67 that is installed in the vent valve 66 on the upper bearing (metal) and this vent valve is covered or the like.In addition, 68 steam vents that refer to be located on the cup-shaped muffler 67.The 69th, be connected on the top cover 70 central authorities refrigerant discharge leader that communicates of closed container 50 therewith.71 is fluid reservoir.Arrow refers to the flow direction of cold-producing medium among the figure.
The operation principle of this hermetic type compressor is such: be rotated compression set 53 refrigerant compressed by the airspace 58 in the electric device 52, enter the top of electric device, these cold-producing mediums are because the centrifugal force that rotor core 55 revolutions produce, its oily sub is separated and is thrown on the excircle of stator core 57, this refrigerant gas flow to the oil storage tank 51 of bottom along the oil return ditch 56 of stator core 57 peripheries outside refrigerant discharge leader 69 is discharged to closed container 50.
The special-purpose clicker press machine of existing manufacturing rotor core and stator core as shown in Figure 9.
In Fig. 9, symbol 79 refers to make rotor core and the special-purpose clicker press machine stereogram of stator core.Protruding (sun) mould-first row of 2 row manufacturing rotor core electrical sheets and stator core electrical sheet are equipped with from 80 (1)～84 (1) in this machine top, the 2nd lists from 80 (2)～84 (2) and is the rotor punch, list 86 (2)～88 (2) from the 1st row the 86 (1)～88 (1), the 2nd and be the stator punch.-this machine bottom has and above-mentioned punch corresponding recessed (the moon) mould, makes steel band S continuously by these punch, between the die and make punch move up and down, so just determines the rotor core steel disc that has several locking tenons in steel band S upper punch.It is such that the position, stamping-out hole of steel band is arranged: two row holes, laterally be the canine tooth shape, and vertically be arranged in order.85 (1) and 85 (2) are the special-purpose die necessary number of these rotor core steel discs is stacked, that add the making rotor core that forces together.89 (1) and 89 (2) are the conveying end of rotor core.
Next step operation is to have cut the punching outside on the steel band S of rotor core steel disc along this, continues stamping-out and makes the stator core steel disc that has several locking tenons, makes stator core with the necessary number of this stator core steel disc is stacked simultaneously.91 (1), 91 (2) are said stator steel disc unshakable in one's determination is stacked, pressurization and make the stator core die.90 (1) and 90 (2) is the conveying end of stator core.Symbol A refers to not carry out the stamping-out place.
Figure 10 represents with the plane graph behind the above-mentioned clicker press machine 79 stamping-out steel band S.Among the figure 80 (1)～84 (1), with 80 (2)～84 (2) the rotor core steel discs of representing respectively to use after above-mentioned punch will need the position stamping-out, the stator core steel disc after 86 (1)～88 (1) and 86 (2)～88 (2) same expressions use the identical punch of above-mentioned symbols with the desired area stamping-out.The consistent person with Fig. 9 of used symbol represents same parts in the circle.K1, K2 represent to be arranged at the locking tenon on the rotor core steel disc, and K3, K4 represents to be arranged at the locking tenon on the stator core steel disc.No corresponding symbol position is the cavity that stays behind the stamping-out among the figure.92,92,93,94 for supplying with the guide-localization hole that steel band is used by fixed intervals.
Use clicker press machine 79, each is schemed for (a)～(d) among Figure 11 will to need the further explanatory drawings of the rotor core steel disc behind the stamping-out of position by punch 80 (1)～83 (1) and 80 (2)～83 (2).(a) 92,92 among the figure supplies with the guide-localization hole that steel band S uses by fixed intervals.(c) K1 among the figure, K2 are the locking tenon that is arranged on the rotor core steel disc.
Among it (a) figure of Figure 12, the place of not making stamping-out is shown in the 2nd tabulation, and the 1st tabulation shows with the rotor core steel disc of punch 84 (1) after with periphery surrounding edge stamping-out, and this steel disc is stacked, the die 85 (1) of pressurization usefulness and the conveying end 89 (1) of rotor core.(b) among the figure, the round hole that stays behind the rotor core steel disc stamping-out is shown in the 1st tabulation, the 2nd tabulation shows with the rotor core steel disc of punch 84 (2) after with periphery surrounding edge stamping-out, and this steel disc is stacked by required number, the die 85 (2) of pressurization usefulness and the conveying end 89 (2) of rotor core.(c) figure is the key diagram in circle hole behind the stamping-out.(d) the 1st among figure row and the 2nd row, expression use punch 86 (1) and 86 (2) is with the stator core steel disc behind necessary position-comprise 4 locking tenon K3 and the K4-stamping-out respectively.(c) 93,93 among the figure is for supplying with the guide-localization hole of the punching once more that steel band S uses by fixed intervals.
Among it (a) figure of Figure 13 the 1st row and the 2nd row, expression uses punch 87 (1) and 87 (2) with the stator core steel disc behind the stamping-out of necessary position respectively.(b) among the figure, the place of not making stamping-out is shown in the 2nd tabulation.The 1st tabulation is shown use punch 88 (1) with the stator core steel disc behind the excircle stamping-out and this stator core steel disc is stacked, pressurization die 91 (1), and the conveying end 90 (1) of stator core.
(c) circle hole behind the stamping-out is shown in the 1st tabulation among the figure.The 2nd tabulation is shown use punch 88 (2) with the stator core steel disc behind the excircle stamping-out and the required number of this stator core steel disc is stacked, pressurization die 91 (2), and the conveying end 90 (2) of stator core.
The 14th illustrates the relation between the stator core steel disc in the 1st row and the 2nd row, the 1st classifies the stator core steel disc that will use after punch 87 (1) and 88 (1) will need the position stamping-out as, and the 2nd row are to use the stator core steel disc after punch 86 (2) and 87 (2) will need the part stamping-out.
Among Figure 15, (a) figure is the key diagram of locking tenon one example, and (b) figure is another routine key diagram of locking tenon.
Among Figure 16, (a) figure is one of the rotor core steel disc that produces with a said method example, (b) figure be with this rotor core steel disc need number stacked, pressurization and the key diagram of the rotor core that produces.
Among Figure 17, (a) figure is one of the stator core steel disc that produces with a said method example, and (b) figure is that the required number of this stator core steel disc is stacked, pressurization and the key diagram of the stator core that produces.K represents locking tenon among the figure.
Yet as can be seen from Figure 14, be listed as between the 2nd row stator core steel disc (radius r) the 1st, promptly between 86 (2) and 87 (1) excircles, between 87 (2) and 87 (1) excircles, and 87 (2) and 88 (1) between the excircle, is all to stay that die-cut surplus ground joins each other in the middle of the circular arc of radius r.So must use the bigger steel band of width in the production process, so that produce the corner loss increase problem of steel band.
Also knowing from Figure 14, on the stator core steel disc that is provided with 4 locking tenons (for example 4 locking tenon K3 of stator core steel disc 87 (1)), with these corresponding excircles in locking tenon position, equally also is the circular arc of radius r.Stacked behind stamping-out, pressurization and make stator core and during as the motor component practical application, on the excircle of stator core steel disc, the place corresponding with locking tenon often will produce the blow-up phenomenon, and brings the distortion of whole stator core thus.Why these defectives produce, and all result from the stamping-out locking tenon and call together to cause internal stress and strain.This also is a problem.
(a) ~ (c) among Figure 18 figure is the key diagram that blow-up takes place on the excircle with the corresponding stator core steel disc of locking tenon.Wherein (a) illustrates the part of stator core steel disc excircle.(b) illustrate at this stator core steel disc excircle and closely be close to the locking tenon that is provided with on the assigned address.(c) figure explanation is applied to actual time when the stator core made from this stator core steel disc as motor component because internal stress and strain that the stamping-out locking tenon produces, with the corresponding stator core steel disc of locking tenon excircle on the situation of generation blow-up.
The present invention is intended to dwindle the width of used steel band, thereby reduces the leftover bits loss; And provide a kind of stator core steel disc and with the manufacture method of the stator core of this steel disc, make to result from internal stress and the strain that locking tenon is set, and the blow-up on the consequent steel disc excircle and the distortion of stator core integral body are eliminated.Provide the stator core steel disc made with the method simultaneously and with the stator core of this steel disc.
The way that solves above-mentioned problem is summarized as follows:
Thereby processes such as the inventor do painstaking research and have obtained following achievement and finished the present invention.Mainly be to have found a kind of way that the problems referred to above are solved.These ways, in brief promptly: locking tenon is arranged on the assigned address of stator core steel disc, in advance with the processing of these locking tenon stamping-outs, then in next step stamping-out excircle, in the excircle of the stator core steel disc of locking tenon correspondence on establish " partial cut " position.
The manufacture method of a kind of stator core of the present invention, use top to have several blanking punches, the bottom has several punching and blanking dies, utilize punch to move up and down to make the clicker press machine of rotor core and stator core, make steel band at punch, pass through continuously between the die, determining 2 row in this steel band upper punch has several locking tenons and will need the position to carry out the rotor core steel disc of stamping-out simultaneously, above-mentioned stamping-out position is laterally made canine tooth at steel band and is arranged, vertically being docile and obedient preface arranges, number is stacked on demand makes rotor core with these rotor core steel discs then, then on the round hole periphery of stamping-out rotor core steel disc, further stamping-out and produce the stator core steel disc that has several locking tenons successively, when making this stator core steel disc, to comprise earlier several locking tenons need the position stamping-out after, stamping-out excircle and make the stator core steel disc then, number is stacked on demand with these stator core steel discs, makes stator core at last; It is characterized in that,
Stamping-out position on the said steel band is made 2 row and is arranged, the 1st line of centres that lists between the stator core steel disc that the line of centres and the 2nd between the stator core steel disc at the necessary position of stamping-out lists the necessary position of stamping-out wherein must be parallel with said steel band length direction; Between the 1st row and the 2nd adjacent 2 stator core steel disc peripheries that list, leave die-cut surplus ground and join each other, the length limit of its periphery and steel band joins with also will leaving die-cut surplus simultaneously; The stator core steel disc center of the 1st row and the 2nd is listed as with leaving die-cut surplus and the line of centres of the stator core steel disc that this stator core steel disc joins and the intersection of corresponding stator core steel disc circumference, is provided with the vertical partial cut of the line of centres therewith; The outer edge place of the corresponding stator core steel disc of partial cut is provided with the locking tenon vertical with the above-mentioned line of centres therewith.
Manufacture method of the present invention is characterized in that: the locking tenon of being located on the said stator core steel disc has 4, make when having the stator core steel disc of 4 locking tenons, with in 4 locking tenons at least one, be moved to subsequent processing or more after operation in stamping-out.
Manufacture method of the present invention, it is characterized in that: from the center of the said stator core steel disc of necessary position stamping-out, draw straight line perpendicular to said steel band length direction, and the straight line that is parallel to said steel band length direction is drawn at from then on said stator core steel disc center, excircle at this two straight line and said stator core steel disc intersects part, and each vertically establishes 4 oil return partial cut with straight line.
Stator core of the present invention is characterized in that: be to produce with the manufacture method of one of such scheme.
The manufacture method of a kind of stator core steel disc of the present invention, use top to have several blanking punches, the bottom has several punching and blanking dies, utilize punch to move up and down to make the clicker press machine of rotor core and stator core, make steel band at punch, pass through continuously between the die, determining 2 row in this steel band upper punch has several locking tenons and will need the position to carry out the rotor core steel disc of stamping-out simultaneously, above-mentioned stamping-out position is laterally made canine tooth at steel band and is arranged, vertically being docile and obedient preface arranges, number is stacked on demand makes rotor core with these rotor core steel discs then, then on the round hole periphery of stamping-out rotor core steel disc, further stamping-out and produce the stator core steel disc that has several locking tenons successively, when making this stator core steel disc, to comprise earlier several locking tenons need the position stamping-out after, stamping-out excircle and make the stator core steel disc then; It is characterized in that,
Stamping-out position on the said steel band is made 2 row and is arranged, the 1st line of centres that lists between the stator core steel disc that the line of centres and the 2nd between the stator core steel disc at the necessary position of stamping-out lists the necessary position of stamping-out wherein must be parallel with said steel band length direction; Between the 1st row and the 2nd adjacent 2 stator core steel disc peripheries that list, leave die-cut surplus ground and join each other, the length limit of its periphery and steel band joins with also will leaving die-cut surplus simultaneously; The stator core steel disc center of the 1st row and the 2nd is listed as with leaving die-cut surplus and the line of centres of the stator core steel disc that this stator core steel disc joins and the intersection of corresponding stator core steel disc circumference, is provided with the vertical partial cut of the line of centres therewith; The outer edge place of the corresponding stator core steel disc of partial cut is provided with the locking tenon vertical with the above-mentioned line of centres therewith.
Manufacture method of the present invention is characterized in that: the locking tenon of being located on the said stator core steel disc has 4, make when having the stator core steel disc of 4 locking tenons, with in 4 locking tenons at least one, be moved to subsequent processing or more after operation in stamping-out.
Manufacture method of the present invention, it is characterized in that: from the center of the said stator core steel disc of necessary position stamping-out, draw straight line perpendicular to said steel band length direction, and the straight line that is parallel to said steel band length direction is drawn at from then on said stator core steel disc center, excircle at this two straight line and said stator core steel disc intersects part, and each vertically establishes 4 oil return partial cut with straight line.
A kind of stator core steel disc of the present invention is characterized in that: be to produce with the manufacture method of one of such scheme.
Fig. 1 is for making the clicker press machine key diagram that rotor core of the present invention and stator core are used.
Fig. 2 uses clicker press machine that Fig. 1 paints, in order steel band style plane graph behind the stamping-out successively.
Fig. 3 (a)～(c) expression will need the rotor core steel disc behind the stamping-out of position.(d) not stamping-out place is shown in the tabulation of the 2nd in, and the 1st row are drawn and used punch 4 (1) along the rotor core steel disc under the excircle stamping-out and these rotor core steel discs are stacked, pressurization die 5 (1), and the conveying end 6 (1) of rotor core.
The sky circle hole that stays behind the stamping-out is shown in the 1st tabulation of Fig. 4 (a) figure, the 2nd tabulation shows that use punch 4 (2) is with the rotor core steel disc behind the periphery stamping-out, with these rotor core steel discs are stacked, pressurization die 5 (2), and the conveying end 6 (2) of rotor core.(b) the sky circle hole that stays behind the expression stamping-out.(c)～(d) for needing the thin portion key diagram of the stator core steel disc behind the stamping-out of position.
The 2nd tabulation of Fig. 5 (a) figure shows that the stamping-out former state is not passed through the place.The 1st tabulation is shown use punch 9 (1) with stator core steel disc behind the periphery stamping-out and die 10 (1) these stator core steel discs are stacked, pressurization usefulness, and the conveying end 11 (1) of stator core.(b) the 2nd tabulation is shown and is used punch 9 (2) number is stacked on demand with the stator core steel disc behind the periphery stamping-out with these steel discs among the figure, and pressurization is with die 10 (2), and the conveying end 11 (2) of stator core.The 1st row are drawn the sky circle hole that stays behind the stamping-out.
Fig. 6 is the stator core steel disc 8 (1), 9 (1) that will need in explanation the 1st row behind the stamping-out of position, and will need the key diagram of relation between the stator core steel disc 7 (2), 8 (2) behind the stamping-out of position in the 2nd row.
Fig. 7 (a) is one of a stator core steel disc of the present invention example.(b) number is stacked on demand with stator core steel disc of the present invention for figure expression, pressurization and one of the stator core of the present invention of making example.
The sectional drawing of the existing closed compressor of Fig. 8.
The clicker press machine key diagram of existing manufacturing rotor core of Fig. 9 and stator core.
Figure 10 uses the steel band form plane graph behind the existing clicker press machine stamping-out.
Figure 11 (a)～(d) will need the thin portion key diagram of the rotor core steel disc behind the stamping-out of position for using existing clicker press machine.
The 2nd classifies as and does not do the stamping-out former state and pass through the place among Figure 12 (a) figure.The 1st tabulation show use punch 84 (1) with the rotor core steel disc behind the periphery stamping-out and with stacked, the pressurization of number on demand of these steel discs with die 85 (1), and key diagram such as rotor core conveying end 89 (1).(b) the 2nd tabulation is shown and is used punch 84 (2) number is stacked on demand with the rotor core steel disc behind the periphery stamping-out with these steel discs among the figure, and pressurization is with die 85 (2), and key diagrams such as 89 (2) are taken out in rotor core.(c) draw the sky circle hole that stays behind the stamping-out.(d) for needing position-comprise 4 locking tenon K3, the thin portion key diagram of the stator core steel disc behind the K4-stamping-out.
Figure 13 (a) figure is the thin portion key diagram that will need the stator core steel disc behind the stamping-out of position.(b) not stamping-out place is shown in the 2nd tabulation in, and the 1st classifies use punch 88 (1) as with the stator core steel disc behind the periphery stamping-out and these steel discs are stacked, pressurization die 91 (1), and the key diagram of stator core conveying end 90 (1).(c) the sky circle hole that stays behind the stamping-out is shown in the 1st tabulation among the figure, and the 2nd classifies use punch 88 (2) as, and number is stacked on demand with the stator core steel disc behind the periphery stamping-out with these steel discs, the die 91 (2) of pressurization usefulness, and stator core conveying end 90 (2).
Figure 14 the 1st row are drawn will need the stator core steel disc 86 (2), 87 (2) that stator core steel disc 87 (1), 88 the (1), the 2nd row behind the stamping-out of position are drawn will be needed behind the stamping-out of position.This figure mainly represents relation therebetween.
Figure 15 (a) illustrates one of locking tenon example, (b) illustrates another example of locking tenon.
Figure 16 (a) illustrates one of existing rotor core steel disc example, (b) figure be the existing rotor core steel disc of expression number is stacked on demand, add the key diagram of the rotor core that is pressed into.
Figure 17 (a) illustrates one of existing stator core steel disc example, and (b) figure is the existing stator core steel disc of expression stacked, the key diagram that adds the stator core that is pressed into of number on demand.
Figure 18 (a)～(c) is illustrated on the neighboring of the corresponding stator core steel disc in locking tenon position, produces the bulging situation.
Embodiments of the invention
Fig. 1 is for making the key diagram of the clicker press machine that rotor core of the present invention and stator core use.
In Fig. 1, symbol 1 refers to make the clicker press machine integral body of rotor core and stator core, this machine 1 top has several stamping-outs punch (the 1st row 1 (1)～4 (1) and the 2nd row 1 (2)～4 (2)) of making the rotor core steel disc, and several stamping-outs punch (the 1st row 7 (1)～9 (1) and the 2nd row 7 (2)～9 (2)) of making the stator core steel disc.The bottom has and the corresponding stamping-out die of above-mentioned punch.Between punch and die, make steel band Sa pass through continuously, move up and down with seasonal punch, so just from steel band Sa-horizontal two row make the canine tooth shape, vertically be arranged in order-will need the position stamping-out to fall in order, make the rotor core steel disc that has several locking tenons.5 (1), 5 (2) refer to these rotor core steel discs, stacked by required number, and pressurization is to make the die of rotor core, and 6 (1), 6 (2) is the conveying end of rotor core.Then, with this hole periphery of stamping-out rotor core steel disc, will need position stamping-out processing more successively and make the stator core steel disc that has several locking tenons.With stacked, the pressurization of number on demand of these steel discs, make stator core at last.10 (1) and 10 (2) are that number is stacked on demand with said stator steel disc unshakable in one's determination, pressurization and make the die of stator core, and 11 (1) and 11 (2) is the conveying end of stator core, A represents not do the stamping-out place.
Fig. 2 is the style plane after using clicker press machine 1 with steel band stamping-out successively.Symbol 1 (1)～1 (4) among the figure, and 1 (2)～4 (2) illustrate to use respectively with each self-corresponding punch and will need rotor core steel disc behind the stamping-out of position.And 7 (1)～9 (1) and 7 (2)～9 (2) illustrate to use respectively with each self-corresponding punch and will need stator core steel disc behind the stamping-out of position.K represents locking tenon.The identical person with Fig. 1 of symbol represents same parts among the figure.No symbol place represents the cavity that stays behind the stamping-out.12,12,13,13rd, by the positioning guide hole of decide to supply with at interval steel band Sa.
(a)～(c) among Fig. 3 be for using the punch 1 (1)～3 (1) of clicker press machine 1, and 1 (2)～3 (2) the thin portion of the rotor core key diagram that will need behind the stamping-out of position.(a) 12,12 in is for making steel band Sa by the decide positioning guide hole of motion at interval.Locking tenon disposes 5 altogether in (c) operation.(d) the stamping-out place is not done in the 2nd among figure expression, and rotor core steel disc behind the excircle stamping-out of the punch 4 (1) that uses clicker press machine 1 and these rotor core steel discs are stacked, the die 5 (1) of the usefulness of pressurizeing, and the conveying end 6 (1) of rotor core are shown in the 1st tabulation.
(a) figure among Fig. 4, the 1st row illustrate the cavity (not carrying out the stamping-out former state passes through) that stays behind the stamping-out, the 2nd lists out punch 4 (2) in the use clicker press machine 1 with the rotor core steel disc behind the periphery stamping-out, with these rotor core steel discs are stacked, the die 5 (2) of pressurization usefulness, and the conveying end 6 (2) of rotor core.(b) cavity (not doing the stamping-out place) that stays behind the stamping-out of expression (c) the 1st is classified as and is used punch 7 (1) among the figure, and the 2nd classify as and use punch 7 (2), will need the thin portion key diagram of the stator core steel disc behind the stamping-out of position.On the stator core steel disc 7 (1) of the 1st row, be provided with 4 locking tenon K but on the stator core steel disc 7 (2) of the 2nd row, because of there being vacant lot that stamping-out locking tenon usefulness punch is installed, so only be provided with 3 locking tenon K.(d) figure expression, the 1st lists and uses punch the 8 (1), the 2nd to list to use punch 8 (2), will need the thin portion key diagram of the stator core steel disc behind the part stamping-out.The 2nd row illustrate 1 place locking K tenon with remainder, and setting completed.(b) 13,13 in is for making steel band by the decide positioning guide hole of motion at interval.
Among Fig. 5 (a) figure, the 2nd row illustrate not stamping-out place, the 1st lists out use punch 9 (1) carries out die 10 (1) stacked, pressurization usefulness with the stator core steel disc behind the periphery stamping-out with these stator core steel discs, and the conveying end 11 (1) of stator core.
(b) among the figure, the 2nd lists out use punch 9 (2) with the stator core steel disc behind the periphery stamping-out and these steel discs are stacked by required number, the die 10 (2) of pressurization usefulness, and the conveying end 11 (2) of stator core.The 1st row illustrate the not place of stamping-out.
Fig. 6, the 1st classifies the stator core steel disc that will use after punch 8 (1) and 9 (1) will need the position stamping-out as, and the 2nd classifies the stator core steel disc that will use after punch 7 (2) and 8 (2) will need the position stamping-out as.This figure mainly illustrates the relation between them.
In Fig. 6, link the stator core steel disc 8 (1) of the 1st row and the straight line a of 9 (1) two central points, and link the 2nd row will need the stator core steel disc 7 (2) behind the stamping-out of position and the straight line b of 9 (2) two central points, should be parallel with the length direction of steel band Sa.(the wide about 226.0mm of steel band Sa)
In addition, the 1st row, said stator in the 2nd row steel disc 8 (1), 9 (1) unshakable in one's determination, and between 7 (2), 8 (2) the excircle, should stay die-cut surplus (about 0.95mm～1.0mm) join each other, meanwhile, excircle separately also should stay die-cut surplus (about 0.95mm～1.0mm) joins with the long limit of steel band Sa.
In addition, for instance, if central point from the 1st stator core steel disc 8 (1) that is listed as, in the 2nd row, leave stator core steel disc 7 (2) that die-cut surplus joins and 8 (2) central point with it, draw line of centres c, d, the excircle intersection of the stator core steel disc 8 (1) of heart line c, d and itself hereinto, each cuts perpendicular to c, the d ground portion of setting a trap, e, f, g, b, and, the locking tenon Ke vertical with center line c, d is set, Kf in the outer rim of the corresponding stator core steel disc 8 (1) of partial cut therewith, Kg, Kh etc.Other stator core steel disc, for example, 9 (1), also identical with 7 (2) and 8 (2) with stator core steel disc 8 (1), 4 partial cut and 4 locking tenons are set.These partial cut e, f, g, h etc. form spill port on the excircle of stator core.
In addition, for example from the central point of stator core steel disc 8 (1), guide the vertical straight line i of length direction of steel band Sa into, excircle intersection at this straight line i and stator core steel disc 8 (1), with this i line portion's of setting a trap cutting vertically Ki, Kj, use as oil return, and from the central point of this stator core steel disc 8 (1), draw the straight line a parallel with the length direction of steel band Sa, the excircle intersection of heart line a and stator core steel disc 8 (1) hereinto is with this a line portion's of setting a trap cutting vertically Kk, Kl also does oil return and uses.Again in this example, the angle between center line d and the straight line i be about 29 ° 18 '.On other stator core steel disc 9 (1), 7 (2), 8 (2), also identical with stator core steel disc 8 (1), establish 4 oil return partial cut.Ki among the figure, Kj, Kk, and partial cut such as Kl form spill port on the excircle of stator core.
Among Fig. 7, (a) be one of stator core steel disc of the present invention example, (b) illustrate one of stator core of the present invention example is made in stator core steel disc of the present invention stacked, the pressurization of number on demand.
In the present invention, about Ke, Kf, Kg, locking tenons such as Kh, to its quantity, size, shape etc. all do not have special restriction.Use the existing locking tenon form shown in Figure 15 also can.Quantity generally will be more than two, but not only bothersome during stamping-out when too many, increase scrap rate, and for the electromagnetic performance of stator core harmful effect arranged also.With 4 is suitable.
Partial cut e among the present invention, f, g, h and oil return partial cut Ki, Kj, Kk, Kl etc., its size, shape etc. do not have special restriction, the limitation cutting is big as area, though favourable to oil return, so the electromagnetic performance to stator core will produce harmful effect, determines it so should fully consider the back.
As previously mentioned, will be arranged on the locking tenon Ke on the ad-hoc location earlier, Kf, Kg after the stamping-outs such as Kh, does along periphery again, comprises partial cut e, f, g, h etc. are at interior stamping-out.So just can use, thereby reduce scrap piece loss than narrow steel strip.For instance, shown in (a) among Fig. 7, for making the stator core steel disc of external diameter 121.7mm,, must use the steel band of width as 227.5mm by existing manufacture method, the leftover bits rate of steel band is up to 40～50% at this moment, and use method provided by the invention, and make the stator core steel disc of same outer diameter as, use the steel band of width 226～224mm to get final product, like this, can reduce leftover bits rate about 40% than existing manufacture method.
In addition, be applied to actual time with stator core steel disc of the present invention and with the stator core of this steel disc, with locking tenon Ke, Kf, Kg, corresponding partial cut e such as Kh, f, distortion seldom appears in g on the h, even there is a little distortion to produce, can not look like as shown in Figure 18 yet, reaching has the stator core of substantive obstacle degree steel disc peripheral distortion, and simultaneously, stator core itself can not produce the distortion that brings substantive obstacle yet.
Effect of the present invention can be summed up as:
Thereby can use and reduce scrap piece loss than narrow steel strip; Provide a kind of internal stress and strain that produces less than stamping-out simultaneously and produce bulging in the stator core steel disc circumferential position of locking tenon correspondence because of locking tenon, and the stator core steel disc of problem such as thing followed stator core self-deformation, and with the stator core of this steel disc.
Claims (8)
1. the manufacture method of a stator core, use top to have several blanking punches, the bottom has several punching and blanking dies, utilize punch to move up and down to make the clicker press machine of rotor core and stator core, make steel band at punch, pass through continuously between the die, determining 2 row in this steel band upper punch has several locking tenons and will need the position to carry out the rotor core steel disc of stamping-out simultaneously, above-mentioned stamping-out position is laterally made canine tooth at steel band and is arranged, vertically being docile and obedient preface arranges, number is stacked on demand makes rotor core with these rotor core steel discs then, then on the round hole periphery of stamping-out rotor core steel disc, further stamping-out and produce the stator core steel disc that has several locking tenons successively, when making this stator core steel disc, to comprise earlier several locking tenons need the position stamping-out after, stamping-out excircle and make the stator core steel disc then, number is stacked on demand with these stator core steel discs, makes stator core at last; It is characterized in that,
Stamping-out position on the said steel band is made 2 row and is arranged, the 1st line of centres (b) that lists between the stator core steel disc that the line of centres (a) and the 2nd between the stator core steel disc at the necessary position of stamping-out lists the necessary position of stamping-out wherein must be parallel with said steel band length direction; Between the 1st row and the 2nd adjacent 2 stator core steel disc peripheries that list, leave die-cut surplus ground and join each other, the length limit of its periphery and steel band joins with also will leaving die-cut surplus simultaneously; The stator core steel disc center of the 1st row and the 2nd is listed as with leaving die-cut surplus and the line of centres (c) of the stator core steel disc that this stator core steel disc joins, (d) with the intersection of corresponding stator core steel disc circumference, be provided with the partial cut (e) that the line of centres is vertical therewith, (f), (g), (h); The outer edge place of the corresponding stator core steel disc of partial cut is provided with the locking tenon vertical with the above-mentioned line of centres (Ke) therewith, (Kf), and (Kg), (Kh).
2. the manufacture method described in claim 1, it is characterized in that: the locking tenon of being located on the said stator core steel disc has 4, when making has the stator core steel disc of 4 locking tenons, with in 4 locking tenons at least one, be moved to subsequent processing or more after operation in stamping-out.
3. the manufacture method described in claim 1 or 2, it is characterized in that: from the center of the said stator core steel disc of necessary position stamping-out, draw straight line perpendicular to said steel band length direction, and the straight line that is parallel to said steel band length direction is drawn at from then on said stator core steel disc center, excircle at this two straight line and said stator core steel disc intersects part, and each vertically establishes 4 oil return partial cut with straight line.
4. stator core is characterized in that: be to produce with the manufacture method of one of claim 1 to 3.
5. the manufacture method of a stator core steel disc, use top to have several blanking punches, the bottom has several punching and blanking dies, utilize punch to move up and down to make the clicker press machine of rotor core and stator core, make steel band at punch, pass through continuously between the die, determining 2 row in this steel band upper punch has several locking tenons and will need the position to carry out the rotor core steel disc of stamping-out simultaneously, above-mentioned stamping-out position is laterally made canine tooth at steel band and is arranged, vertically being docile and obedient preface arranges, number is stacked on demand makes rotor core with these rotor core steel discs then, then on the round hole periphery of stamping-out rotor core steel disc, further stamping-out and produce the stator core steel disc that has several locking tenons successively, when making this stator core steel disc, to comprise earlier several locking tenons need the position stamping-out after, stamping-out excircle and make the stator core steel disc then; It is characterized in that,
Stamping-out position on the said steel band is made 2 row and is arranged, the 1st line of centres (b) that lists between the stator core steel disc that the line of centres (a) and the 2nd between the stator core steel disc at the necessary position of stamping-out lists the necessary position of stamping-out wherein must be parallel with said steel band length direction; Between the 1st row and the 2nd adjacent 2 stator core steel disc peripheries that list, leave die-cut surplus ground and join each other, the length limit of its periphery and steel band joins with also will leaving die-cut surplus simultaneously; The stator core steel disc center of the 1st row and the 2nd is listed as with leaving die-cut surplus and the line of centres (c) of the stator core steel disc that this stator core steel disc joins, (d) with the intersection of corresponding stator core steel disc circumference, be provided with the partial cut (e) that the line of centres is vertical therewith, (f), (g), (h); The outer edge place of the corresponding stator core steel disc of partial cut is provided with the locking tenon vertical with the above-mentioned line of centres (Ke) therewith, (Kf), and (Kg), (Kh).
6. the manufacture method described in claim 5, it is characterized in that: the locking tenon of being located on the said stator core steel disc has 4, when making has the stator core steel disc of 4 locking tenons, with in 4 locking tenons at least one, be moved to subsequent processing or more after operation in stamping-out.
7. the manufacture method described in claim 5 or 6, it is characterized in that: from the center of the said stator core steel disc of necessary position stamping-out, draw straight line perpendicular to said steel band length direction, and the straight line that is parallel to said steel band length direction is drawn at from then on said stator core steel disc center, excircle at this two straight line and said stator core steel disc intersects part, and each vertically establishes 4 oil return partial cut with straight line.
8. a stator core steel disc is characterized in that: be to produce with the manufacture method of one of claim 5 to 7.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP154610/96 | 1996-06-14 | ||
| JP15461096A JP3557046B2 (en) | 1996-06-14 | 1996-06-14 | Member for stator core, method of manufacturing stator core using the same, member for stator core, and stator core using the same |
| JP154610/1996 | 1996-06-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1170269A CN1170269A (en) | 1998-01-14 |
| CN1110121C true CN1110121C (en) | 2003-05-28 |
Family
ID=15587954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97112716A Expired - Fee Related CN1110121C (en) | 1996-06-14 | 1997-06-11 | Steel sheets for stator cores, stator cores with the steel sheets and munufacture thereof |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3557046B2 (en) |
| KR (1) | KR100520137B1 (en) |
| CN (1) | CN1110121C (en) |
| ID (1) | ID17318A (en) |
| SG (1) | SG83667A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19818198A1 (en) * | 1998-04-23 | 1999-10-28 | Bosch Gmbh Robert | Producing rotor or stator from sheet metal blank |
| JP4921843B2 (en) * | 2005-09-08 | 2012-04-25 | 株式会社東芝 | Manufacturing method and manufacturing apparatus for rotating electrical machine core pieces |
| JP4717089B2 (en) * | 2008-02-14 | 2011-07-06 | 三菱電機株式会社 | Electric motor stator, electric motor, compressor and blower |
| JP5485926B2 (en) * | 2011-02-25 | 2014-05-07 | 東芝産業機器製造株式会社 | Manufacturing method of stator core |
| CN102836911A (en) * | 2012-09-20 | 2012-12-26 | 河南中德特种电机有限公司 | Manufacture technology of tapered rotor motor stamped steel |
| US10284058B2 (en) | 2014-09-25 | 2019-05-07 | Mitsui High-Tec, Inc. | Method and apparatus for manufacturing laminated cores |
| JP6316783B2 (en) * | 2014-09-25 | 2018-04-25 | 株式会社三井ハイテック | Manufacturing method and manufacturing apparatus of laminated iron core |
| JP6544064B2 (en) | 2015-06-15 | 2019-07-17 | トヨタ紡織株式会社 | Method of punching metal plate and punching system of metal plate |
| JP6509373B2 (en) * | 2015-12-15 | 2019-05-08 | 三菱電機株式会社 | Core sheet, divided laminated core and stator, and method of manufacturing divided laminated core |
| CN109482708A (en) * | 2017-09-12 | 2019-03-19 | 东元电机股份有限公司 | The manufacturing method of motor component |
| JP7137918B2 (en) * | 2017-10-16 | 2022-09-15 | 株式会社三井ハイテック | Laminated core manufacturing method |
| CN109013873A (en) * | 2018-09-14 | 2018-12-18 | 临安泰华机械设备有限公司 | A kind of blanking progressive die tool |
| CN110064562B (en) * | 2019-03-28 | 2021-05-04 | 曹海东 | Processing equipment and processing method of high-performance motor iron core |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016183B2 (en) * | 1977-12-14 | 1985-04-24 | 株式会社日立製作所 | Manufacturing method of stator core for rotating electrical machines |
| JPS5872957U (en) * | 1981-11-09 | 1983-05-17 | 三洋電機株式会社 | electric motor stator core |
| JPS59132737A (en) * | 1983-12-20 | 1984-07-30 | Sanyo Electric Co Ltd | Stator core for motor |
| JPS61280727A (en) * | 1985-05-17 | 1986-12-11 | Sanyo Electric Co Ltd | Hermetic motor compressor |
| JPS6244039A (en) * | 1985-08-20 | 1987-02-26 | Sanyo Electric Co Ltd | Electric motor core |
| JPS62114449A (en) * | 1985-11-13 | 1987-05-26 | Sanyo Electric Co Ltd | Motor core |
| JP2840268B2 (en) * | 1989-01-12 | 1998-12-24 | 三洋電機株式会社 | Stator core |
| US5044237A (en) * | 1990-02-05 | 1991-09-03 | Magnetic Metals Corporation | Method for stamping stepper motor laminations |
-
1996
- 1996-06-14 JP JP15461096A patent/JP3557046B2/en not_active Expired - Lifetime
-
1997
- 1997-06-10 KR KR1019970023768A patent/KR100520137B1/en not_active IP Right Cessation
- 1997-06-11 CN CN97112716A patent/CN1110121C/en not_active Expired - Fee Related
- 1997-06-12 SG SG9702036A patent/SG83667A1/en unknown
- 1997-06-16 ID IDP972052A patent/ID17318A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR100520137B1 (en) | 2006-03-24 |
| JP3557046B2 (en) | 2004-08-25 |
| ID17318A (en) | 1997-12-18 |
| CN1170269A (en) | 1998-01-14 |
| KR980006719A (en) | 1998-03-30 |
| SG83667A1 (en) | 2001-10-16 |
| JPH104656A (en) | 1998-01-06 |
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