CN100399672C - Mfg. method for core of rotary dynamo - Google Patents
Mfg. method for core of rotary dynamo Download PDFInfo
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- CN100399672C CN100399672C CNB2004100076295A CN200410007629A CN100399672C CN 100399672 C CN100399672 C CN 100399672C CN B2004100076295 A CNB2004100076295 A CN B2004100076295A CN 200410007629 A CN200410007629 A CN 200410007629A CN 100399672 C CN100399672 C CN 100399672C
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- rotating machine
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- 238000000034 method Methods 0.000 title claims description 91
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000004519 manufacturing process Methods 0.000 claims abstract description 95
- 239000008358 core component Substances 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000005452 bending Methods 0.000 claims description 96
- 239000000306 component Substances 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 abstract 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 16
- 230000002093 peripheral effect Effects 0.000 description 15
- 239000004020 conductor Substances 0.000 description 13
- 238000010894 electron beam technology Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The present invention relates to a manufacturing method for iron cores of rotating machines, which has the steps: a zonal first magnetic sheet (1) with a base (1a) and a toothed part (1b) is manufactured on a first magnetic steel sheet via punching; a zonal second magnetic sheet (2) with a base (2a) and a toothed part (2b) is manufactured on a second magnetic steel sheet via punching, and the second magnetic steel sheet is thicker than the first magnetic steel sheet; the first magnetic sheet (1) is laminated via specified piece number, the second magnetic sheet (2) is laminated on both sides of a laminated direction of a laminated body (3) of the first magnetic sheet (1), and the laminated first magnetic sheet (1) and the laminated second magnetic sheet (2) are integrated so as to manufacture a cuboid magnetic sheet laminated body; both ends of the magnetic sheet laminated body are bent into ends with specific curvature; the magnetic sheet laminated body is integrally wound on a core component so as to form cylindrical integration; both ends of the magnetic sheet laminated body are jointed, and the jointed part is bonded. The manufacturing method can easily homogenize the curvature of the integrated iron core along a circumferential direction.
Description
Technical field
The present invention relates to the manufacture method of the iron core of electric rotating machine, relate in particular to the manufacture method of the iron core of the electric rotating machine that steel plate is constituted stackedly.
Background technology
Figure 25 is that for example the Japan Patent spy opens the stereogram of duplexer of the iron core of the electric rotating machine of putting down in writing in the clear 48-9201 communique in the past.Figure 26 is the figure that expression is wound on duplexer the state that forms on the columnar core component.Figure 27 is that expression makes the both ends that bend to duplexer cylindraceous carry out the figure of the state of combination.
In Figure 25, magnetic sheet duplexer 100 makes and the magnetic steel plate is carried out the magnetic sheet 101 that stamping-out processing makes is laminated into integrated making with the sheet number of stipulating.Each magnetic sheet 101 is formed from the base portion of Rack and arranges and the shape of formation to the length direction of base portion with the pitch of regulation to the tooth portion that Width stretches out.And, magnetic sheet duplexer 100, make base portion each other and tooth portion magnetic sheet 101 is carried out stackedly making to its thickness of slab direction integratedly with overlapping each other each other.The rectangular-shaped magnetic sheet duplexer of making like this 100, carry out stacked the tooth portion of magnetic sheet 101 and the 100b of tooth portion that constitute, from the one side of the base portion 100a of the stacked formation of base portion of magnetic sheet 101 is stretched out, and be arranged on the length direction of base portion 100a with the pitch of regulation.And slot part 100c utilizes the 100b of tooth portion of base portion 100a and adjacency and forms.
The magnetic sheet duplexer of making like this 100 as shown in figure 26, after not shown coil reel to be installed, to be wound onto on the columnar core component 102 and to form cylindric.Then, as shown in figure 27, will bend to the both ends butt joint of magnetic sheet duplexer 100 cylindraceous, and its abutting part 103 is carried out solder bond, can obtain the iron core 110 of electric rotating machine.
The iron core 110 of the electric rotating machine in the past of Gou Chenging like this, as mentioned above, the magnetic sheet 101 that will be formed with the band shape of the groove of accommodating coil carries out stacked and makes rectangular-shaped magnetic sheet duplexer 100, this magnetic sheet duplexer 100 is wound on the columnar core component 102 and forms cylindric, then, utilization welding etc. is carried out combination with the both ends of magnetic sheet duplexer 100 and is made.
The iron core 110 of electric rotating machine in the past so is not from making the cylinder iron core at first, and is installed on the magnetic sheet duplexer 100 of cuboid by not shown coil is reeled, and just carries out winding operation easily.Again owing to make magnetic sheet duplexer 100 carry out bending after installing in that coil is reeled, with compare before the bending, since the sectional area of the groove after the bending diminish, so have the advantage that can dispose coil to high-density.
In the iron core 110 of the electric rotating machine in the past that constitutes like this, owing to magnetic sheet duplexer 100 carries out stacked making with thin magnetic sheet 101 with regulation sheet number, the intensity of the magnetic sheet 101 of the stacked direction both sides of magnetic sheet duplexer 100 is little, so form when cylindric the problem that exists the magnetic sheet 101 of the both sides of magnetic sheet duplexer 100 to buckle easily or be out of shape magnetic sheet duplexer 100 being wound on the columnar core component 102.
In addition, form when cylindric magnetic sheet duplexer 100 being wound on the columnar core component 102, near the both ends than being bent to form of other parts less, inconsistent, the combination well of faying face that the end is mutual.That is to say that near the bendings the abutting part 103 become insufficient, because along the circumferential direction whole radius of curvature becomes inhomogeneous, so there is inconsistent, the problem of combination well of faying face.In addition, if forcibly make this abutting part 103 as one man in conjunction with the time, the problem that exists unshakable in one's determination 110 circularity to worsen.
Summary of the invention
The present invention makes in order to address the above problem, its purpose is, acquisition can be easily with the curvature of integrated iron core along the circumferential direction make evenly, can improve iron core cylindraceous circularity, and can prevent buckling or being out of shape, can making the gap of magnetic pole relative or magnet to reduce, can make the magnetic resistance in space to reduce, can improve the manufacture method of iron core of the electric rotating machine of electric rotating machine power output power of tooth portion with iron core.
The present invention is a kind of manufacture method of iron core of electric rotating machine, the iron core of this electric rotating machine by the magnetic sheet of band shape constitute stackedly, have base portion unshakable in one's determination cylindraceous and from this iron core base portion to radially outstanding a plurality of tooth portion, between this adjacent tooth portion, be formed with respectively and accommodate the slot part that coil is used.
Described manufacture method has:
Make the operation of the 1st magnetic sheet of band shape with base portion and tooth portion by stamping-out the 1st magnetic steel plate;
Make the operation of the 2nd magnetic sheet of band shape with base portion and tooth portion by the 2nd magnetic steel plate of described the 1st magnetic steel thickness of slab of stamping-out thickness ratio;
With described the 1st magnetic sheet with regulation sheet number carry out stacked, and weld in the whole zone of stacked direction that will described the 2nd magnetic sheet overlaps the upper edge, position the described the 1st at close two ends in the base portion outside of at least one side of stacked direction of the duplexer that is laminated by described the 1st magnetic sheet and the described the 1st and the 2nd magnetic sheet after stacked and the 2nd magnetic sheet, with the operation of the magnetic sheet duplexer of making cuboid;
The both ends of described magnetic sheet duplexer are bent to the end bent operation of curvature with regulation;
The integral body of described magnetic sheet duplexer is wound on the columnar core component and forms integrally bending operation cylindraceous;
With bend to described magnetic sheet duplexer cylindraceous both ends butt joints and with the docking section combination in conjunction with operation.
Adopt the present invention, because will be configured in the thickness of slab of the 2nd magnetic sheet at least one side of stacked direction of magnetic sheet duplexer forms than heavy back, so the intensity of the 2nd magnetic sheet of at least one side of the stacked direction of magnetic sheet duplexer increases, the magnetic sheet duplexer is being wound on the columnar core component and is forming when cylindric, the generation of buckling or being out of shape in the tooth portion of the 2nd magnetic sheet can be suppressed at, qualification rate can be improved.
In addition, owing to have the circular-arc end bent operation that the both ends of magnetic sheet duplexer is bent to the curvature of regulation, so in conjunction with operation, can make the mutual faying face unanimity in end of magnetic sheet duplexer easily, good binding can be realized, circularity unshakable in one's determination can be improved.
Description of drawings
Fig. 1 is the process chart that the manufacturing process to the duplexer of the cuboid in the manufacture method of the iron core of the electric rotating machine of example 1 of the present invention describes.
Fig. 2 is the stereogram of the duplexer of the cuboid in the manufacture method of iron core of electric rotating machine of expression example 1 of the present invention.
Fig. 3 is the process chart that the manufacturing process to the iron core of the electric rotating machine of example 1 of the present invention describes.
Fig. 4 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 2 of the present invention describes.
Fig. 5 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 3 of the present invention describes.
Fig. 6 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 4 of the present invention describes.
Fig. 7 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 5 of the present invention describes.
Fig. 8 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 6 of the present invention describes.
Fig. 9 is the end view that the example to the end bent operation of the duplexer of cuboid describes.
Figure 10 is the distribution map of the internal stress of the duplexer in the end bent operation of Fig. 9.
Figure 11 is the end view that the end bent operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 7 of the present invention describes.
Figure 12 is the end view that the end bent operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 8 of the present invention describes.
Figure 13 is the end view that the end bent operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 9 of the present invention describes.
Figure 14 is the distribution map of the internal stress of the duplexer in the end bent operation shown in Figure 13.
Figure 15 is the process chart that the bending operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 10 of the present invention describes.
Figure 16 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 11 of the present invention describes.
Figure 17 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 12 of the present invention describes.
Figure 18 is the stereogram that the operation to the coil of accommodating Figure 17 (a) further describes.
Figure 19 is the stereogram that expression utilizes the iron core that the manufacture method manufacturing of iron core of the electric rotating machine of example 12 of the present invention obtains.
Figure 20 is the stereogram that the integrally bending operation in the manufacture method of the iron core of the electric rotating machine of example 13 of the present invention is described.
Figure 21 process chart that to be expression describe the iron core of the electric rotating machine of example 14 of the present invention.
Figure 22 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 15 of the present invention describes.
Figure 23 is the stereogram that the manufacture method to the iron core of the electric rotating machine of example 16 of the present invention describes.
Figure 24 is the major part vertical view of the duplexer that describes of the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 17 of the present invention.
Figure 25 is the stereogram of roughly rectangular-shaped duplexer that becomes the iron core of electric rotating machine in the past.
Figure 26 is the figure that expression is wound on the iron core of duplexer the state that forms on the columnar core component.
Figure 27 is that expression makes the both ends that bend to duplexer cylindraceous carry out the figure of the state of combination.
Figure 28 is the stereogram that expression when duplexer carried out bending, duplexer are deformed into corrugated state.
Embodiment
[example 1]
Fig. 1 is the process chart that the manufacturing process to the duplexer of the cuboid in the manufacture method of the iron core of the electric rotating machine of example 1 of the present invention describes, Fig. 2 is the stereogram of the duplexer of the cuboid in the manufacture method of iron core of electric rotating machine of expression example 1 of the present invention, Fig. 3 is the process chart that the manufacturing process to the iron core of the electric rotating machine of example 1 of the present invention describes, Fig. 3 (a) is the end view of the rectangular-shaped duplexer of expression, Fig. 3 (b) be expression with the end view of the duplexer of state after the bending of both ends, to be expression carry out end view in conjunction with the iron core cylindraceous that is made with the both ends of the duplexer of looped-shaped bending to Fig. 3 (c).
Then, with reference to Fig. 1～Fig. 3 the manufacture method of iron core is described.
At first, the 1st magnetic steel plate of the long size of thickness of slab t1 is carried out stamping-out and be processed into the 1st banded magnetic sheet 1.The 1st magnetic sheet 1 is formed the shape of arranging to the length direction of base portion 1a with the pitch of regulation to the 1b of tooth portion of Width extension from the base portion 1a of Rack.In addition, (the 2nd magnetic steel plate of the long size of t2＞t1) carries out stamping-out and is processed into the 2nd banded magnetic sheet 2 with thickness of slab t2.The 2nd magnetic sheet 2 is formed the shape of arranging to the length direction of base portion 2a with the pitch of regulation to the 2b of tooth portion of Width extension from the base portion 2a of Rack.In addition, the 1st and the 2nd magnetic sheet 1,2 except the thickness of slab difference, is formed identical shape.And the thickness of slab t1 of the 1st magnetic sheet 1 is 0.35mm～0.5mm, and the thickness of slab t2 of the 2nd magnetic sheet 2 is 0.8mm～1.0mm.
And the 1st magnetic sheet 1 of regulation sheet number builds up at the thickness of slab direction tegillum of the 1st magnetic sheet 1 and to make base portion 1a each other and the state that overlaps each other each other of the 1b of tooth portion, makes the duplexer 3 that is laminated by the 1st magnetic sheet 1.Then, as shown in Figure 1, the 2nd magnetic sheet 2 overlaps on this duplexer 3 from the both sides of the thickness of slab direction of the 1st magnetic sheet 1.At this moment, the base portion 2a of the 2nd magnetic sheet 2 and the 2b of tooth portion are overlapping with the base portion 1a of the 1st magnetic sheet 1 and the 1b of tooth portion respectively.And the 1st and the 2nd magnetic sheet 1,2 after overlapping is integrated, makes the magnetic sheet duplexer 4 of the cuboid shown in Fig. 2 and Fig. 3 (a).
The magnetic sheet duplexer of making like this 4, prolong by the one side base portion 4a that constitutes from base portion 1a, 2a being carried out stacked for the 4b of tooth portion that the 1b of tooth portion, 2b are constituted stackedly, arranges at the length direction of base portion 4a with the pitch of regulation.And slot part 4c utilizes the 4b of tooth portion of base portion 4a and adjacency and forms.
Then, shown in Fig. 3 (b), the both ends of magnetic sheet duplexer 4 become the front end of the 4b of tooth portion to point to the state (end bent operation) at center with the curvature bending of stipulating.At this moment regulation curvature, be meant final columnar unshakable in one's determination 5 or with integrally bending after the approaching curvature of curvature of magnetic sheet duplexer 4.
Then, magnetic sheet duplexer 4 is wound on the state that makes the inside all sides of front end face of the 4b of tooth portion on the not shown columnar core component, magnetic sheet duplexer 4 is integrally formed cylindric (integrally bending operation).Then, make the both ends of the surface of the magnetic sheet duplexer 4 after the bending carry out butt, utilize laser welding or electron beam welding that this abutting part is carried out solder bond, shown in Fig. 3 (c), can obtain 5 (in conjunction with operations) unshakable in one's determination cylindraceous.Thus, form joint portion 6 to the outer peripheral face of iron core 5 along the axial whole regional of iron core 5 in the position of this abutting part, and the two ends of the magnetic sheet duplexer 4 after the bending are fixed.In addition, as long as core component has cylinder or cylindrical outer peripheral face shape (cylindrical shape) is just passable.
The iron core of making like this 5, have base portion 5a unshakable in one's determination cylindraceous and from this iron core base portion 5a to the outstanding a plurality of tooth 5b of portion of axis direction, the slot part 5c that coil is used is accommodated in formation respectively between base portion 5a unshakable in one's determination and the adjacent 5b of tooth portion.
In the manufacture method of the iron core of the electric rotating machine of this example 1, utilize the end bent operation to make the both ends bending of the magnetic sheet duplexer 4 of cuboid, then, owing to utilizing the integrally bending operation to be wound on magnetic sheet duplexer 4 on the columnar core component and being bent to form cylindric, so the bending of magnetic sheet duplexer 4 along the circumferential direction integral body becomes evenly, can make and make columnar unshakable in one's determination 5 of circularity raising.
If the iron core 5 after the circularity that will make like this improves is applied to electric rotating machine, just can make with the gap of relative 5 magnetic components that are configured unshakable in one's determination (for example rotor) to reduce, the magnetic resistance in gap is reduced, can improve the power output power of electric rotating machine.
In addition, the magnetic sheet duplexer 4 of cuboid is made in the both sides that are layered in the duplexer 3 that is laminated by the 1st magnetic sheet 1 owing to the 2nd magnetic sheet 2 that thickness of slab is thicker, so can be suppressed at the generation of buckling or being out of shape of the end bent operation of magnetic sheet duplexer 4 and the 4b of tooth portion in the integrally bending operation, can improve qualification rate.
[example 2]
Fig. 4 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 2 of the present invention describes.
In this example 2, the magnetic steel plate of the long size of thickness of slab t1 is carried out stamping-out processing and makes the 1st magnetic sheet that the both ends of base portion have rectangular indentation.Equally, the magnetic steel plate of the long size of thickness of slab t2 is carried out stamping-out processing and make the 2nd magnetic sheet that the both ends of base portion have rectangular indentation.And, multi-disc the 1st magnetic sheet is carried out stacked, stacked the 2nd magnetic sheet from both sides is again made the magnetic sheet duplexer 4 of cuboid shown in Figure 4.
In the magnetic sheet duplexer 4A that makes like this, be formed at the breach on the both ends of base portion of the 1st and the 2nd magnetic sheet, thickness of slab direction at the 1st and the 2nd magnetic sheet is overlapping, makes the width (length of above-below direction among Fig. 4) of base portion 4a form the thinner wall section 4d of thin-walled with reducing.
Then, same with above-mentioned example 1, utilize the end bent operation that bending is carried out at the both ends of magnetic sheet duplexer 4A, then, utilize the integrally bending operation to be wound on magnetic sheet duplexer 4A on the columnar core component and bend to cylindric, utilize again abutting part in conjunction with the two ends of the magnetic sheet duplexer 4A of operation after with bending carry out in conjunction with and make the iron core of electric rotating machine.
Adopt this example 2, owing to form thinner wall section 4d at the both ends of the base portion 4a of magnetic sheet duplexer 4A, so the less rigid at the both ends of magnetic sheet duplexer 4A, just bending easily.Therefore, in the end bent operation, because the bending force when making the both ends of magnetic sheet duplexer 4A crooked reduces, so in the end bent operation, be difficult to produce buckling or being out of shape of the 4b of tooth portion.
In addition, in above-mentioned example 2, in that being carried out stamping-out, the magnetic steel plate adds man-hour, form the breach that constitutes thinner wall section 4d with base portion, tooth portion, but also can be in that the 1st and the 2nd magnetic sheet is stacked ground integrated and after making the duplexer of cuboid, this duplexer is applied cut and forms thinner wall section.
[example 3]
Fig. 5 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 3 of the present invention describes, Fig. 5 (a) is the end view of the state when indicating near the recess the joint portion buried, and Fig. 5 (b) is the end view of the state after representing near the recess the joint portion to be buried.
In this example 3, also having in conjunction with the operation back in the manufacture method of above-mentioned example 2 imbedded in the recess 8 that is made of thinner wall section 4d the member 7 of imbedding that is made of magnetic material and the operation that combines with it.
Here, with reference to Fig. 5 the characteristic of the manufacture method of this example 3 is described.
At first, same with above-mentioned example 2, make 5A unshakable in one's determination cylindraceous.This iron core 5A, shown in Fig. 5 (a), near the outer circumferential side joint portion 6 is formed with the recess 8 that is made of thinner wall section 4d.
Then, shown in Fig. 5 (a), will with magnetic material make imbed member 7 from the outer circumferential side tightlock status of 5A unshakable in one's determination be embedded in and utilize the recess 8 that thinner wall section 4d constitutes.In addition, this imbeds member 7, forms the chimeric circular shape of tightlock status ground and recess 8.And, shown in Fig. 5 (b), utilize laser welding or electron beam welding to weld with imbedding the edge portion of member 7 with the recess 8 of 5A unshakable in one's determination, make the 5B unshakable in one's determination of electric rotating machine.Thus, imbedding the circumferencial direction end positions of member 7, forming joint portion 6a, be fixed on the 5B unshakable in one's determination and will imbed member 7 in the whole vertically zone of the outer peripheral face of 5B unshakable in one's determination.
General on the iron core of electric rotating machine, if having the part that width radially reduces, then produce magnetic saturation in this part at base portion, the power output of electric rotating machine just reduces.
In this example 3, the member of making of magnetic material 7 of imbedding is embedded in and utilizes in the recess 8 that thinner wall section 4d constituted, and welds.Therefore, in the base portion 5a unshakable in one's determination of 5B unshakable in one's determination,, be difficult to produce magnetic saturation, can improve the power output of electric rotating machine with regard to the part that the width that does not have radially reduces.In addition, by welding the intensity that improves 5B unshakable in one's determination to imbedding member 7.
[example 4]
Fig. 6 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 4 of the present invention describes.
In this example 4, the both ends outer circumferential side that the magnetic steel plate of the long size of thickness of slab t1 is carried out stamping-out processing and makes base portion has the 1st magnetic sheet of ramped shaped breach.Equally, the both ends outer circumferential side that the magnetic steel plate of the long size of thickness of slab t2 is carried out stamping-out processing and make base portion has the 2nd magnetic sheet of ramped shaped breach.And, multi-disc the 1st magnetic sheet is carried out stacked, stacked the 2nd magnetic sheet from both sides is again made the magnetic sheet duplexer 4B of cuboid shown in Figure 6.In the magnetic sheet duplexer 4B that makes like this, be formed at the breach of the ramped shaped on the both ends outer circumferential side of base portion of the 1st and the 2nd magnetic sheet, thickness of slab direction at the 1st and the 2nd magnetic sheet is overlapping, forms the rake 4e of the thinner wall section that reduces gradually to the end as the width that makes base portion 4a.
Then, same with above-mentioned example 2, utilize the end bent operation that bending is carried out at the both ends of magnetic sheet duplexer 4B, then, utilize the integrally bending operation to be wound on magnetic sheet duplexer 4B on the columnar core component and bend to cylindric, utilize again abutting part in conjunction with the two ends of the magnetic sheet duplexer 4B of operation after with bending carry out in conjunction with and make the iron core of electric rotating machine.
Adopt this example 4, owing to form rake 4e at the both ends of the base portion 4a of magnetic sheet duplexer 4B, so the less rigid at the both ends of magnetic sheet duplexer 4B, just bending easily.Therefore, same with above-mentioned example 2, in the end bent operation, because the bending force can make the both ends of magnetic sheet duplexer 4B crooked the time reduces, so in the end bent operation, be difficult to produce buckling or being out of shape of the 4b of tooth portion.
In addition, because the simple shape of rake 4e, so the handling ease of end.
[example 5]
Fig. 7 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 5 of the present invention describes.
In this example 5, the magnetic steel plate of the long size of thickness of slab t1 is carried out stamping-out processing and is formed in the 1st magnetic sheet that has the notch of section U font on the peripheral part at both ends of base portion.Equally, the magnetic steel plate of the long size of thickness of slab t2 is carried out stamping-out processing and be formed in the 2nd magnetic sheet that has the notch of section U font on the peripheral part at both ends of base portion.And, multi-disc the 1st magnetic sheet is carried out stacked, stacked the 2nd magnetic sheet from both sides is again made the magnetic sheet duplexer 4C of cuboid shown in Figure 7.In the magnetic sheet duplexer 4C that makes like this, be formed at the notch on the both ends peripheral part of base portion of the 1st and the 2nd magnetic sheet, link to each other with the thickness of slab direction of the 2nd magnetic sheet the 1st, form notch 4f as the section U font of thinner wall section.
Then, same with above-mentioned example 2, utilize the end bent operation that bending is carried out at the both ends of magnetic sheet duplexer 4C, then, utilize the integrally bending operation to be wound on magnetic sheet duplexer 4C on the columnar core component and bend to cylindric, utilize again abutting part in conjunction with the two ends of the magnetic sheet duplexer 4C of operation after with bending carry out in conjunction with and make the iron core of electric rotating machine.
Adopt this example 5, owing on the peripheral part at the both ends of the base portion 4a of magnetic sheet duplexer 4C, form the notch 4f of section U font, so the less rigid at the both ends of magnetic sheet duplexer 4C, just bending easily.Therefore, same with above-mentioned example 2, in the end bent operation, because the bending force can make the both ends of magnetic sheet duplexer 4C crooked the time reduces, so in the end bent operation, be difficult to produce buckling or being out of shape of the 4b of tooth portion.
In addition, because the simple shape of notch 4f, so the handling ease of end.
[example 6]
Fig. 8 is the major part end view that the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 6 of the present invention describes.
In this example 6, the magnetic steel plate of the long size of thickness of slab t1 is carried out stamping-out processing and is formed in the 1st magnetic sheet that has the notch of section V font on the peripheral part at both ends of base portion.Equally, the magnetic steel plate of the long size of thickness of slab t2 is carried out stamping-out processing and be formed in the 2nd magnetic sheet that has the notch of section V font on the peripheral part at both ends of base portion.And, multi-disc the 1st magnetic sheet is carried out stacked, stacked the 2nd magnetic sheet from both sides is again made the magnetic sheet duplexer 4D of cuboid shown in Figure 8.In the magnetic sheet duplexer 4D that makes like this, be formed at the notch on the peripheral part at both ends of base portion of the 1st and the 2nd magnetic sheet, link to each other with the thickness of slab direction of the 2nd magnetic sheet the 1st, form the notch 4g of the section V font of making thinner wall section.
Then, same with above-mentioned example 5, utilize the end bent operation that bending is carried out at the both ends of magnetic sheet duplexer 4D, then, utilize the integrally bending operation to be wound on magnetic sheet duplexer 4D on the columnar core component and bend to cylindric, utilize again abutting part in conjunction with the two ends of the magnetic sheet duplexer 4D of operation after with bending carry out in conjunction with and make the iron core of electric rotating machine.
In this example 6, owing on the peripheral part at the both ends of the base portion 4a of magnetic sheet duplexer 4D, also form the notch 4g of section V font, so the less rigid at the both ends of magnetic sheet duplexer 4D, just bending easily.Therefore, same with above-mentioned example 5, in the end bent operation, because the bending force can make the both ends of magnetic sheet duplexer 4D crooked the time reduces, so in the end bent operation, be difficult to produce buckling or being out of shape of the 4b of tooth portion.
In addition, because the simple shape of notch 4g, so the handling ease of end.
[example 7]
Fig. 9 is the end view that the example to the end bent operation of the duplexer of cuboid describes, and Figure 10 is the distribution map of the internal stress of the duplexer in the end bent operation of Fig. 9.In addition, in Figure 10, expression puts on dark part with big stress.
In end bent operation shown in Figure 9,4 clampings of magnetic sheet duplexer are become the state of the outstanding specific length in its end with the 1st stationary fixture 61 that is provided in base portion 4a side and the 2nd stationary fixture 62 that is provided in the 4b of tooth portion side.This occasion, from the end side of magnetic sheet duplexer 4 with the 2nd 4b of tooth portion
2Be held on 61,62 of the 1st and the 2nd stationary fixtures with its center side.And, make the base portion 4a side butt of pushing anchor clamps 71 and the end of magnetic sheet duplexer 4, to the vertical direction (projected direction of the 4b of tooth portion) of relative magnetic sheet duplexer 4, promptly the direction shown in the arrow pushes in figure.
With this end bent method, by among Figure 10 as can be known, from the end side of bending to the 2nd 4b of tooth portion
2Apply big stress.Therefore, this end bent method might make the 2nd 4b of tooth portion
2Generation is buckled.
Figure 11 is the end view that the end bent operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 7 of the present invention describes.
In this example 7, the 4b of the tooth portion side in the end of the 2nd stationary fixture 63 is at the 4b of 2 the tooth portions in end to the from magnetic sheet duplexer 4
2Near the butt place, more to the end leave more tooth portion 4b ground with the end face of the thickness direction quadrature of magnetic sheet duplexer 4 on be formed with the rake 63a of linearity.Therefore, in the end bent operation of magnetic sheet duplexer 4, can be from the end side of bending to the 2nd 4b of tooth portion
2Apply big stress, can not make the 2nd 4b of tooth portion
2Buckle.
Then, same with above-mentioned example 1, utilize the integrally bending operation to be wound on magnetic sheet duplexer 4 on the columnar core component and bend to cylindric, utilize again abutting part in conjunction with the two ends of the magnetic sheet duplexer 4 of operation after with bending carry out in conjunction with and make the iron core of electric rotating machine.
In the manufacture method of the iron core of such electric rotating machine, before being wound on the columnar core component and being bent to form integrally bending operation cylindraceous, the integral body with magnetic sheet duplexer 4 carries out above-mentioned end bent operation earlier, owing to bend to the state that the both ends that make magnetic sheet duplexer 4 become final curvature, so the curvature of integrated iron core is made evenly, can be improved the circularity of the columnar iron core of manufacturing.
If will be applied to electric rotating machine,,, can improve the power output of electric rotating machine so the magnetic resistance in space is reduced because the gap with rotor unshakable in one's determination is reduced by the iron core of this manufacture method made.
In addition, as long as push the end bent that just can make magnetic sheet duplexer 4, can make apparatus structure simple to the projected direction of the 4b of tooth portion.In addition, owing to utilize rake 63a the butt angle initialization of relative the 2nd stationary fixture 63 of the 4b of tooth portion can be become suitable angle, so can be suppressed at the generation of buckling or being out of shape of the 4b of tooth portion in the end bent operation.
In addition, the end bent operation of the duplexer of above-mentioned example 7 as the end bent operation that is suitable for the magnetic sheet duplexer 4 in the above-mentioned example 1, can certainly be applied to the end bent operation of the duplexer in the example 2～6.
In addition, the end bent operation of duplexer shown in Figure 9 is because to the 2nd 4b of tooth portion
2Apply big stress, so preferably be applied to make the end bent operation of the duplexer in the above-mentioned example 2～6 that the rigidity of end reduces.
[example 8]
Figure 12 is the end view that the end bent operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 8 of the present invention describes.
In the end bent operation of the duplexer of this example 8, the 4b of the tooth portion side in the end of the 2nd stationary fixture 64 is at 2 4b of tooth portion from end to the
2Near the butt place, be formed on the circular-arc rake 64a that makes radius R with the section of the thickness direction quadrature of magnetic sheet duplexer 4 to the end more with leaving the 4b of tooth portion more.
Other structure, same with above-mentioned example 7.
In the end bent operation of the duplexer of this example 8, owing to can utilize circular-arc rake 64a further to set the butt angle of relative the 2nd stationary fixture 64 of the 4b of tooth portion for suitable angle, be difficult to further buckle or be out of shape so become the 4b of tooth portion of obstacle when making bending.
[example 9]
Figure 13 is the end view that the end bent operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 9 of the present invention describes.Figure 14 is the distribution map of the internal stress of the duplexer in the end bent operation shown in Figure 13.In addition, in Figure 14, expression puts on dark part with big stress.
In the end bent operation of the duplexer of this example 9, shown in Figure 13 (a), make the closely connected anchor clamps 72 of section L font closely connected with the bight of the base portion 4a side of the end of magnetic sheet duplexer 4, then, shown in Figure 13 (b), these closely connected anchor clamps 72 are pushed to the direction shown in the arrow, and the end bent of magnetic sheet duplexer 4 is become the state that is involved in to the 4b of tooth portion side.
In addition, other operation and above-mentioned example 8 are same.
In the end bent operation of the duplexer of this example 9, use closely connected anchor clamps 72, the state that the end bent of magnetic sheet duplexer 4 is become to be involved in.Therefore, utilize the effect of the bending method that is involved in of effect that above-mentioned rake 64a is set and closely connected anchor clamps 72, as shown in Figure 14, at the 2nd 4b of tooth portion
2On, stress application not almost.
Therefore, adopt this example 9, because the state that is provided with circular-arc rake 64a and utilizes closely connected anchor clamps 72 that the end bent of magnetic sheet duplexer 4 is become to be involved in, so can reduce to be applied to and leave the stress on the 4b of tooth portion of position of distance of regulation from the end and bending moment is applied on the bend of magnetic sheet duplexer 4, just can make the 4b of tooth portion more be difficult to buckle.
[example 10]
Figure 15 is the process chart that the bending operation to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 10 of the present invention describes.
In this example 10, at first, utilize the manufacturing process of Fig. 1 and Fig. 2 to make magnetic sheet duplexer 4.
And, shown in Figure 15 (a), utilize the both end sides of 61,64 pairs of magnetic sheet duplexers 4 of stationary fixture of the 1st and the 2nd to carry out clamping, the end of the magnetic sheet duplexer 4 that the stationary fixture 61,64 from the 1st and the 2nd stretches out, utilize pushing anchor clamps 71 make the front end of the 4b of tooth portion point in heart be bent (end bent operation) with the curvature of regulation.
Then, shown in Figure 15 (b), with a pair of stationary fixture 74 central portion of magnetic sheet duplexer 4 is carried out clamping, the regulation zone at both ends is wound on the columnar core component 73 with roller 69 bendings
(the 1st integrally bending operation).Here, from each end bending is carried out in roughly 1/4 the zone of the total length of magnetic sheet duplexer 4.
Then, shown in Figure 15 (c), a side who bends to 1/4 circular-arc bend in the 1st integrally bending operation uses pushing anchor clamps 75 to be fixed on the core component 73, and all the other unbent central portions use roller 69 to be wound on the core component 73 and bend to cylindric (the 2nd integrally bending operation).In addition, the 1st and the 2nd integrally bending operation constitutes the integrally bending operation.
Then, shown in Figure 15 (d), the both ends of the magnetic sheet duplexer 4 behind the butt utilize laser welding or electron beam welding to carry out solder bond, make 5 (in conjunction with operations) unshakable in one's determination.
In the 1st integrally bending operation in the manufacture method of the iron core of the electric rotating machine that utilizes this example 10, the central portion that utilizes 74 pairs of stationary fixtures to carry out the magnetic sheet duplexer 4 after the end bent operation carries out clamping, the regulation zone at the both ends of magnetic sheet duplexer 4 is wound on respectively on the core component 73 and crooked.Therefore, can carry out clamping with the scope of the broadness of the central portion of 74 pairs of magnetic sheet duplexers 4 of stationary fixture, magnetic sheet duplexer 4 becomes easy to the coiling of core component 73.
In addition, before being wound on magnetic sheet duplexer 4 on the core component 73 and bending to the 2nd integrally bending operation cylindraceous, owing to made the regulation zone at the both ends of carrying out the magnetic sheet duplexer 4 after the end bent operation carry out bending, so in the 2nd integrally bending operation, can bend to magnetic sheet duplexer 4 cylindric easily.
[example 11]
Figure 16 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 11 of the present invention describes.
In this example 11, at first, utilize the manufacturing process of Fig. 1 and Fig. 2 to make magnetic sheet duplexer 4.
Then, utilize the 1st integrally bending operation shown in Figure 15 (b), bending is carried out in the regulation zone at the both ends of magnetic sheet duplexer 4.In addition, utilize the 2nd integrally bending operation shown in Figure 15 (c) to bend to magnetic sheet duplexer 4 cylindric.
Then, shown in Figure 16 (a), be installed on the columned stationary fixture 76a that a part has breach bending to magnetic sheet duplexer 4 cylindraceous.At this moment, stretch out to the breach side of stationary fixture 76a at the both ends of magnetic sheet duplexer 4.And, utilize stationary fixture 76b that magnetic sheet duplexer 4 is pushed to stationary fixture 76a from outer circumferential side.Thus, be fixed anchor clamps 76a, 76b of the zone except the both ends of magnetic sheet duplexer 4 grips.
And, make closely connected anchor clamps 72 closely connected with the both ends of the magnetic sheet duplexer 4 that stretches out from stationary fixture 76a, 76b, with closely connected anchor clamps 72 both ends of magnetic sheet duplexer 4 are bent to the state (end bent operation) that is involved in to the 4b of tooth portion side.
Then, unload magnetic sheet duplexer 4, shown in Figure 16 (b) and Figure 16 (c), make the both ends butt of magnetic sheet duplexer 4 and utilize laser welding or electron beam welding is carried out combination and made 5 (in conjunction with operations) unshakable in one's determination from stationary fixture 76a, 76b.
In the manufacture method of the iron core of the electric rotating machine that utilizes this example 11, the curvature of integrated iron core is made evenly, can improve the circularity of iron core cylindraceous.
If will be applied in the electric rotating machine by the iron core that this manufacture method is made, because the gap with rotor unshakable in one's determination is reduced, the magnetic resistance in space is reduced, can improve the power output of electric rotating machine.
In addition, in the end bent operation, because the integral body of magnetic sheet duplexer 4 that will be except both ends utilizes stationary fixture 76a, 76b to carry out clamping from interior all sides and outer circumferential side, so the supporting of the magnetic sheet duplexer 4 in the end bent operation becomes reliably, can further reduce the generation of buckling of the 4b of tooth portion.
[example 12]
In this example 12, in the manufacture method of the iron core of the electric rotating machine that utilizes above-mentioned example 1, before the end bent operation of magnetic sheet duplexer 4, coil member is installed on the magnetic sheet duplexer 4.
Figure 17 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 12 of the present invention describes.Figure 18 is the stereogram that the operation to the coil member of accommodating Figure 17 (a) further describes.Figure 19 is the stereogram that expression utilizes the iron core that the manufacture method manufacturing of iron core of the electric rotating machine of example 12 of the present invention forms.
In this example 12, before the end bent operation of above-mentioned example 1, shown in Figure 17 (a) and (b), carry out coil member 80 is housed in operation (coil member is accommodated operation) among the slot part 4c of magnetic sheet duplexer 4.Accommodate in the operation at this coil member, shown in Figure 18 (a) and (b), between magnetic sheet duplexer 4, clip insulating part 81 and accommodated with coil member 80 at coil member 80.In addition, accommodate in the operation at this coil member, 2 coil members 80 are overlapping and be housed on the magnetic sheet duplexer 4.
Then, shown in Figure 17 (c), make the end of the magnetic sheet duplexer 4 that contains coil member 80 states carry out bending (end bent operation), then, shown in Figure 17 (d), the magnetic sheet duplexer 4 behind the end bent is bent to cylindric (integrally bending operation), in addition, the two ends that bend to magnetic sheet duplexer 4 cylindraceous are carried out in conjunction with (in conjunction with operation), and make iron core shown in Figure 19 5.
Then, the structure to coil member 80 describes.
This coil member 80 is folding simultaneously the making of 12 continuous leads 82 that will be arranged in parallel at grade with 1 slot pitch.Each continuous conductors 82, the line part 82b that connects at turning part 82a is bent to form the planar graph that is arranged in 6 slot pitch (6P).And adjacent line part 82b utilizes turning part 82a and the width size of the continuous conductors 82 that staggers.
2 coil members 80 of Gou Chenging are installed on the magnetic sheet duplexer 4 superimposedly like this.And 4 line part 82b are housed in each slot part 4c at depth direction 1 row of groove with arranging.
Here, suppose to be applied to have the situation of the electric rotating machine of 2 group of 3 cross streams coil, use 12 continuous conductors 82 to constitute coil member 80, but the radical of continuous conductors 82 is not limited to 12, for example, in the occasion of electric rotating machine that is applied to have 1 group 3 cross streams coils, can use 6 continuous conductors to constitute coil member 80.In addition, coil member 80 is made the structure of the line part 82b with 96 couples, and line part 82b to identical with the groove number of magnetic sheet duplexer 4.
In addition, in Figure 19, the 1st outer circumferential side magnetic sheet weld part 83 on unshakable in one's determination 5 outer peripheral face, forms with the regulation pitch in a circumferential direction.A pair of the 2nd outer circumferential side magnetic sheet weld part 84 carries out clamping to unshakable in one's determination 5 joint portion 6, and closely forms with joint portion 6 on unshakable in one's determination 5 outer peripheral face.Here, the 2nd outer circumferential side magnetic sheet weld part 84 is formed on the outer peripheral face of base portion 4a relative with the 2nd 4b of tooth portion with the two ends from magnetic sheet duplexer 4.And the 1st and the 2nd outer circumferential side magnetic sheet weld part 83,84 forms in the entire axial length of unshakable in one's determination 5 peripheral part upper edge iron core 5 respectively.These the 1st and the 2nd outer circumferential side magnetic sheet weld parts 83,84 as above-mentioned shown in Figure 1, after making the 2nd magnetic sheet and the duplexer that is laminated by the 1st magnetic sheet 13 overlapping, carry out laser welding or electron beam welding with the outer circumferential side of base portion 1a, 2a and form.Thus, can obtain the magnetic sheet duplexer 4 that the 1st and the 2nd magnetic sheet 1,2 after overlapping is made the cuboid after integrated.
In this example 12, the curvature of integrated iron core is made evenly, can improve the circularity of iron core cylindraceous.And,,,, can improve the power output of electric rotating machine so the magnetic resistance in space is reduced because the gap with rotor unshakable in one's determination is reduced if the iron core that will utilize this manufacture method to make is applied in the electric rotating machine.
In addition, because coil member 80 is housed in the rectangular-shaped magnetic sheet duplexer 4, so can carry out the operation of accommodating of coil member 80 easily, when further crooked, reduce and can improve occupation efficiency in the groove of coil member 80, can improve the power output of electric rotating machine by the sectional area that makes slot part.
In addition, in the manufacturing process of magnetic sheet duplexer 4, make the 2nd outer circumferential side magnetic sheet weld part 84 approaching with the both ends of magnetic sheet duplexer 4 on the base portion 4a of magnetic sheet duplexer 4 periphery, and form along the state in the whole zone of thickness direction of base portion 4a.Therefore, constitute the both ends of the 1st and the 2nd magnetic sheet 1,2 of magnetic sheet duplexer 4, fixing reliably by the 2nd outer circumferential side magnetic sheet weld part 84, so can suppress irregular generation of the 4b of tooth portion front end face at the both ends of the end bent operation of magnetic sheet duplexer 4 and the magnetic sheet duplexer 4 in the integrally bending operation.Its result can suppress the generation because of the damage of the insulating coating of the irregular continuous conductors that causes 82 of tooth front end face, can prevent the short circuit between continuous conductors and the deterioration of insulating properties.In addition, because the raising of the rigidity of the iron core 5 of manufacturing, so can also reduce the electromagnetism sound of the electric rotating machine of having used iron core 5.
In addition, above-mentioned coil member is accommodated operation, in any method of example 1～example 11, can both pack into before the integrally bending operation, carries out the operation of back under the state that contains coil member 80.
In addition, in above-mentioned example 12, be that the many continuous conductors 82 folding coil members of making 80 are installed on the magnetic sheet duplexer 4, replace coil member 80 but also other coil can be installed on the magnetic sheet duplexer 4.
[example 13]
Figure 20 is the stereogram that the integrally bending operation in the manufacture method of the iron core of the electric rotating machine of example 13 of the present invention is described.
In Figure 20, roller 74 has: have with the columned roller 74a of portion of the equal axial length of the thickness of magnetic sheet duplexer 4 and be formed at flange part 74b on the axial both ends of the 74a of roller portion.
In this example 13, as shown in figure 20, use roller 74 that magnetic sheet duplexer 4 is wound on the core component 73 and bend to cylindric (integrally bending operation).At this moment, be formed on the flange part 74b on the two ends of the 74a of roller portion of roller 74, leave the two sides butt of minim gap ground and base portion 4a and can lead slidably.
In addition, other operation and above-mentioned example 1 similarly carry out.
Here, do not establish the occasion of flange part 74b on roller 74, as shown in figure 28, the waveform distortion takes place to the stacked direction displacement in magnetic sheet duplexer 4.
But, in the manufacture method of the iron core of the electric rotating machine of this example 13, the flange part 74b of roller 74 contacts with the two sides of magnetic sheet duplexer 4 at stacked direction, lead to stacked direction displacement ground owing to can suppress magnetic sheet duplexer 4, so can be reduced in the generation of the waveform distortion of the magnetic sheet duplexer 4 in the integrally bending operation.
In addition, the roller 74 of this example 13 can use in the integrally bending operation of example 1～example 12.
[example 14]
Figure 21 process chart that to be expression describe the iron core of the electric rotating machine of example 14 of the present invention, Figure 21 (a) is the end view of rectangular-shaped magnetic sheet duplexer 4, Figure 21 (b) is the end view of the magnetic sheet duplexer 4 after the bending of both ends, and Figure 21 (c) will bend to the end view of the both ends of magnetic sheet duplexer 4 cylindraceous in conjunction with the iron core 90 of back acquisition.
The iron core 90 of the electric rotating machine of this example 14, for example, it is the iron core that is used for the rotor of motor, magnetic sheet by band shape constitutes stackedly, the a plurality of tooth 90b of portion that have base portion 90a unshakable in one's determination cylindraceous and give prominence to radially to foreign side from base portion 90a radius vector unshakable in one's determination are formed with respectively between the adjacent 90b of tooth portion and accommodate the slot part 90c that coil is used.
In this example 14, at first, utilize the manufacturing process of Fig. 1 and Fig. 2 to make the rectangular-shaped magnetic sheet duplexer 4 shown in Figure 21 (a).
Then, this magnetic sheet duplexer 4, shown in Figure 21 (b), the state (end bent operation) that becomes the front end of the 4b of tooth portion to expand radially with the curvature bending of regulation at the both ends of magnetic sheet duplexer 4 with the interval of regulation.The curvature of regulation at this moment, be meant final columnar unshakable in one's determination 90 or with integrally bending after the approaching curvature of curvature of magnetic sheet duplexer 4.
Then, shown in Figure 21 (c), the integral body of magnetic sheet duplexer 4, the front end face that makes the 4b of tooth portion to outer circumferential side be wound on the not shown columnar core component and form cylindric (integrally bending operation), and, utilize laser welding or electron beam welding to carry out solder bond in joint portion 6, and make 90 (in conjunction with operations) unshakable in one's determination as the butt place, both ends of magnetic sheet duplexer 4.
In the manufacture method of the iron core of the electric rotating machine of this example 14, by the end bent operation bending is carried out in the end of rectangular-shaped magnetic sheet duplexer 4, owing to thereafter with the integrally bending operation be wound on form on the columnar core component cylindric, so can make the evenly crooked of integrated iron core along the circumferential direction, can improve columnar unshakable in one's determination 90 circularity.
If will utilize the iron core 90 of this manufacture method made to be applied in the electric rotating machine,,, can improve the power output of electric rotating machine so the magnetic resistance in space is reduced because the iron core (rotor) and the gap of stator are reduced.
[example 15]
Figure 22 is the process chart that the manufacture method to the iron core of the electric rotating machine of example 15 of the present invention describes.
In this example 15, carry out in the manufacture method of the iron core 90 of example 14, the manufacture method corresponding with example 11.
In this example 15, at first, utilize the 1st integrally bending operation shown in Figure 15 (b), make the regulation zone at the both ends of magnetic sheet duplexer 4 carry out bending.In addition, utilize the 2nd integrally bending operation shown in Figure 15 (c), bend to magnetic sheet duplexer 4 cylindric.At this moment, magnetic sheet duplexer 4 is bent to the state of the 4b of tooth portion towards radial outside.
Then, as shown in figure 22, will bend to magnetic sheet duplexer 4 cylindraceous and be installed on the stationary fixture 76a.And, utilize stationary fixture 76b that magnetic sheet duplexer 4 is pushed to stationary fixture 76a from outer circumferential side.Thus, will be clamped to except the zone the both ends of magnetic sheet duplexer 4 among stationary fixture 76a, the 76b.
And closely connected anchor clamps 72 connect airtight with the both ends of the magnetic sheet duplexer 4 that stretches out from stationary fixture 76a, 76b, with closely connected anchor clamps 72 bending (end bent operation) are carried out to base portion 4a side in the both ends of magnetic sheet duplexer 4 with being involved in.
Then, magnetic sheet duplexer 4 is unloaded from stationary fixture 76a, 76b, make the both ends butt of magnetic sheet duplexer 4 and utilize laser welding or combination is carried out in electron beam welding, and make 90 (in conjunction with operations) unshakable in one's determination.
In this example 15, also can easily make the curvature of integrated iron core along the circumferential direction even, can improve the circularity of iron core cylindraceous.In addition, when bending is carried out in the end of magnetic sheet duplexer 4, owing to utilize stationary fixture 76a, 76b that the inner and outer circumferential surfaces beyond the end of magnetic sheet duplexer 4 is carried out clamping, so can support, can further reduce the generation of buckling of the 15b of tooth portion reliably to magnetic sheet duplexer 4.
[example 16]
Figure 23 is the stereogram that the manufacture method to the iron core of the electric rotating machine of example 16 of the present invention describes.
In this example 16, carry out in the manufacture method of the iron core 90 of example 14, the manufacture method corresponding with example 13.
In Figure 23, core component 75 has: have with the columned roller 75a of portion of the equal axial length of the thickness of magnetic sheet duplexer 4 and be formed at flange part 75b on the axial both ends of the 75a of roller portion.
In this example 16, as shown in figure 23, use roller 69 that the 75a of roller portion that magnetic sheet duplexer 4 is wound on core component 75 is upward bent to cylindric (integrally bending operation).At this moment, be formed on the flange part 75b on the two ends of the 75a of roller portion of core component 75, leave the two sides butt of minim gap ground and base portion 4a and can lead slidably.
In this example 16, the flange part 75b of core component 75 and magnetic sheet duplexer 4 stacked direction two sides contact, lead to stacked direction displacement ground owing to can suppress magnetic sheet duplexer 4, so can be reduced in the generation of the waveform distortion of the magnetic sheet duplexer 4 in the integrally bending operation.
[example 17]
Figure 24 is the major part vertical view of the magnetic sheet duplexer that describes of the manufacturing process to the duplexer in the manufacture method of the iron core of the electric rotating machine of example 17 of the present invention.
In this example 17, the magnetic steel plate of the long size of thickness of slab t1 is carried out stamping-out processing and makes the 1st magnetic sheet 1.The 1st magnetic sheet 1 is formed the shape of arranging to the length direction of base portion 1a with the pitch of regulation to the 1b of tooth portion that Width stretches out from the base portion 1a of Rack.In addition, (the magnetic steel plate of the long size of t2＞t1) carries out stamping-out processing and makes the 2nd magnetic sheet 2A with thickness of slab t2.The 2nd magnetic sheet 2A is formed the shape of arranging to the length direction of base portion 2a with the pitch of regulation to the 2b of tooth portion that Width stretches out from the base portion 2a of Rack.At this moment, the 2nd magnetic sheet 2A, the gap d 1 that is formed between the 1b of tooth portion adjacent in gap d 2 to the 1 magnetic sheets 1 between the adjacent 2b of tooth portion is big.And, the 2nd magnetic sheet 2A, the side edge part of the slot part 2c that is made of the tooth 2b of portion adjacent with base portion 2a forms the curved face part 2d of R shape.
And same with above-mentioned example 1, the 1st magnetic sheet 1 of regulation sheet number is laminated in the thickness of slab direction of the 1st magnetic sheet 1 and makes base portion 1a each other and the state that overlaps each other each other of the 1b of tooth portion, thereby makes the duplexer 3 that is laminated by the 1st magnetic sheet 1.Then, the 2nd magnetic sheet 2A overlaps on this duplexer 3 both sides of curved face part 2d towards ground, the outside from the thickness of slab direction of the 1st magnetic sheet 1.At this moment, the base portion 2a of the 2nd magnetic sheet 2A and the 2b of tooth portion are overlapping with the base portion 1a of the 1st magnetic sheet 1 and the 1b of tooth portion respectively.And the 1st and the 2nd magnetic sheet 1,2A after overlapping are integrated, make the magnetic sheet duplexer 4E of cuboid shown in Figure 24.
And, this magnetic sheet duplexer 4E, same with above-mentioned example 1, carry out end bent processing, integrally bending processing and in conjunction with operation, thereby make the iron core of electric rotating machine.
In example 13, can easily make the curvature of integrated iron core along the circumferential direction even, can improve the circularity of columnar iron core.
In addition, because the channel opening edge portion of iron core is formed curved face part 2d,, can prevent the short circuit between conductor lines and the deterioration of insulating properties so can suppress the generation that insulating coating that formation is installed in the conductor lines of the coil on the iron core damages.
In addition, in above-mentioned each example, the 2nd magnetic sheet 2,2A are provided on the two ends of duplexer 3, but may not necessarily the 2nd magnetic sheet 2,2A need be provided on the two ends of duplexer 3, as long as it is just passable to be provided at least one side at two ends of duplexer.
Claims (10)
1. the manufacture method of the iron core of an electric rotating machine, described iron core is made of the magnetic sheet of band shape stackedly, described iron core have base portion unshakable in one's determination cylindraceous and from this iron core base portion to radially outstanding a plurality of tooth portion, between this adjacent tooth portion, be formed with respectively and accommodate the slot part that coil is used, it is characterized in that having:
Make the operation of the 1st magnetic sheet of band shape with base portion and tooth portion by stamping-out the 1st magnetic steel plate;
Make the operation of the 2nd magnetic sheet of band shape with base portion and tooth portion by the 2nd magnetic steel plate of described the 1st magnetic steel thickness of slab of stamping-out thickness ratio;
With described the 1st magnetic sheet with regulation sheet number carry out stacked, and weld in the whole zone of stacked direction that will described the 2nd magnetic sheet overlaps the upper edge, position the described the 1st at close two ends in the base portion outside of at least one side of stacked direction of the duplexer that is laminated by described the 1st magnetic sheet and the described the 1st and the 2nd magnetic sheet after stacked and the 2nd magnetic sheet, with the operation of the magnetic sheet duplexer of making cuboid; The both ends of described magnetic sheet duplexer are bent to the end bent operation with regulation curvature;
The integral body of described magnetic sheet duplexer is wound on the columnar core component and forms integrally bending operation cylindraceous;
With bend to described magnetic sheet duplexer cylindraceous both ends butt joints and with the docking section combination in conjunction with operation.
2. the manufacture method of the iron core of electric rotating machine as claimed in claim 1 is characterized in that,
In the operation of making described the 2nd magnetic sheet, the edge portion of tooth portion that the interval between the tooth portion of described the 2nd magnetic sheet forms the one side side of and described 2nd magnetic sheet bigger than the interval between the tooth portion of described the 1st magnetic sheet forms curved face part,
In the operation of making described magnetic sheet duplexer, described curved face part is overlapped described the 2nd magnetic sheet on the duplexer that is laminated by described the 1st magnetic sheet towards ground, the outside.
3. the manufacture method of the iron core of electric rotating machine as claimed in claim 1, it is characterized in that, in the operation of making the described the 1st and the 2nd magnetic sheet, the described the 1st and the two ends of the base portion of the 2nd magnetic sheet form the thinner wall section of the reduced width that makes this base portion so that the described the 1st and the 2nd magnetic sheet overlaps each other when stacked.
4. the manufacture method of the iron core of electric rotating machine as claimed in claim 3, it is characterized in that, in described back, also have magnetic component is embedded in the recess that is made of described thinner wall section so that the operation that described magnetic component combines with described magnetic sheet duplexer in conjunction with operation.
5. the manufacture method of the iron core of electric rotating machine as claimed in claim 1 is characterized in that, described end bent operation was carried out before described integrally bending operation.
6. the manufacture method of the iron core of electric rotating machine as claimed in claim 1 is characterized in that, described end bent operation is carried out after described integrally bending operation.
7. the manufacture method of the iron core of electric rotating machine as claimed in claim 1 is characterized in that, described integrally bending operation has: the both end sides of described magnetic sheet duplexer is bent to the 1st circular-arc integrally bending operation respectively; And one of the described magnetic sheet duplexer after the both end sides bending distolaterally is fixed on the described core component and this magnetic sheet duplexer is wound on the 2nd integrally bending operation on this core component.
8. the manufacture method of the iron core of electric rotating machine as claimed in claim 1, it is characterized in that, in described integrally bending operation, use is formed with the roller of pair of flanges portion, and a pair of described flange part is contacted with the two sides of the stacked direction of this magnetic sheet duplexer, then described magnetic sheet duplexer is wound on the described core component.
9. the manufacture method of the iron core of electric rotating machine as claimed in claim 1, it is characterized in that, in described integrally bending operation, use is formed with the described core component of pair of flanges portion, and the two sides of the stacked direction of this magnetic sheet duplexer are contacted with described pair of flanges portion, then described magnetic sheet duplexer is wound on the described core component.
10. as the manufacture method of the iron core of each described electric rotating machine in the claim 1～9, it is characterized in that, before described end bent operation and integrally bending operation, coil is installed on the described magnetic sheet duplexer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100076295A CN100399672C (en) | 2004-02-25 | 2004-02-25 | Mfg. method for core of rotary dynamo |
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|---|---|---|---|
| CNB2004100076295A CN100399672C (en) | 2004-02-25 | 2004-02-25 | Mfg. method for core of rotary dynamo |
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| CN1661880A CN1661880A (en) | 2005-08-31 |
| CN100399672C true CN100399672C (en) | 2008-07-02 |
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| US20090179511A1 (en) * | 2007-03-22 | 2009-07-16 | Tecnomatic, S.P.A. | Stators having female connectors and methods for forming female connectors integral with the stator winding conductors |
| WO2021060298A1 (en) * | 2019-09-24 | 2021-04-01 | 日立金属株式会社 | Stator for rotating electrical machine, rotating electrical machine, method for manufacturing stator for rotating electrical machine, and method for manufacturing rotating electrical machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001211619A (en) * | 2000-01-25 | 2001-08-03 | Mitsubishi Electric Corp | Ac generator for vehicle |
| JP2001298885A (en) * | 2000-04-14 | 2001-10-26 | Mitsubishi Electric Corp | Core of electric rotating machine and its manufacturing method |
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2004
- 2004-02-25 CN CNB2004100076295A patent/CN100399672C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001211619A (en) * | 2000-01-25 | 2001-08-03 | Mitsubishi Electric Corp | Ac generator for vehicle |
| JP2001298885A (en) * | 2000-04-14 | 2001-10-26 | Mitsubishi Electric Corp | Core of electric rotating machine and its manufacturing method |
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| Publication number | Publication date |
|---|---|
| CN1661880A (en) | 2005-08-31 |
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