CN103125062A - Method and device for producing an annular machine element, in particular for insertion into an electric machine - Google Patents
Method and device for producing an annular machine element, in particular for insertion into an electric machine Download PDFInfo
- Publication number
- CN103125062A CN103125062A CN2011800354335A CN201180035433A CN103125062A CN 103125062 A CN103125062 A CN 103125062A CN 2011800354335 A CN2011800354335 A CN 2011800354335A CN 201180035433 A CN201180035433 A CN 201180035433A CN 103125062 A CN103125062 A CN 103125062A
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- China
- Prior art keywords
- lath
- shaped member
- plate
- profiled part
- spiral
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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
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
- H02K15/026—Wound cores
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a method for producing a cylindrical machine element, in particular for an electric machine. Said method consists of the following steps: a sheet metal element (1) which comprises a spiral-shaped metal strip extending on a sheet metal main plane and which has a thickness in the direction of thickness extending vertically to the sheet metal main plane, and has a width in the direction of the width which extends parallel to the sheet metal main plane; the metal strips are wound in several windings in a screw-like or spiral-like manner about a cylindrical, in particular round cylindrical form element (2) in the axial direction thereof such that the windings of the metal strips are on top of each other in the direction of thickness and the width of the metal strip extends in a direction which is vertical to the axial direction of the form element (2); the wound metal strip is detached from the shaping element (2) in order to maintain the machine element.
Description
Technical field
The present invention relates generally to a kind of manufacture method of the machine part of using for motor, particularly relates to a kind of method for the manufacture of the ring-type machine part.
Background technology
Hollow cylindrical body particularly in motor for the manufacture of stator or stator support.Because alternating magnetic field usually occurs in motor, so for fear of eddy current and common stacking in the stratification mode by the sheet material that correspondingly forms particularly advantageously, that is this ring bodies of laminated form formation, in order to prevent along the eddy current that is parallel to cylindrical axial direction appearance.
In order to make this cylinder in the layer structure mode, by two kinds of methods of prior art cicada.According to first method, go out a plurality of ring-type thin slices and each ring-type thin slice stacked on top by sheet metal forming, in order to make the ring of stratiform.The intermediate connector that each ring-type thin slice can or go out by stamping-out or be connected to each other by welding.The advantage of this method is, can use the steel plate with high silicon share, and the magnetic hysteresis loss in magnetic field and eddy current loss are minimized.The shortcoming of this method is that particularly when cylindrical radial thickness was minimum with respect to the ratio of external diameter, the consumption of sheet material was very large.The blinking scrap of this vast scale and the high material cost that causes thus make this method not attractive.
Second method is, make the lath of wire and lath that stamping-out is gone out around its edge roll around, in order to form the ring of stratiform.The ring of this stratiform is reeled on helical form or spiral ground subsequently.Because lath by the wire stamping-out, produces few blinking scrap so it is made.The shortcoming of this method is, only can use the great steel of ductility as the material that is used for lath because at lath strong deformation during the winding process at edge in order to realize the ring-type geometry that needs.Because greatly reduce its flexibility during high silicon share in the material of stamping-out sheet material, thus the steel plate with low silicon share only can be used concerning this method, in order to make cylinder.The steel plate that has low silicon share by use, when ring bodies experience alternating magnetic field, the iron loss in ring bodies is than higher in preceding method, and this also makes this method not attractive equally.
Summary of the invention
Therefore, the object of the invention is to, provide a kind of for making improving one's methods of rotational symmetric body in the layer structure mode, wherein reduced blinking scrap and can use the steel plate with high silicon share.
In addition, the object of the invention is to, provide a kind of for form the thin sheet element of rotational symmetric body in the layer structure mode.
Described purpose is by the method for the manufacture of hollow cylinder according to claim 1 and by the realization that should be used for according to the described stamping-out sheet material of claim arranged side by side and this stamping-out sheet material.
Provide in the dependent claims other favourable design.
According to first aspect, a kind of method that is used for making especially for the cylindricality machine part of motor is proposed.The method comprises the steps:
-plate-shaped member is provided, described plate-shaped member has the lath of spiral extension in the sheet material primary flat, and described lath has along the thickness of the thickness direction that extends perpendicular to the sheet material primary flat and has along the width of the Width that is parallel to the extension of sheet material primary flat;
-make lath helical form or spiral around cylindricality, particularly columniform profiled part becomes a plurality of pitch of the laps along its over-end winding, thereby the pitch of the laps through-thickness of lath against each other, and the Width of lath extends along following direction, and described perpendicular direction is in the axial direction of described profiled part;
-remove profiled part, in order to obtain machine part.
The design of said method is, by the helical form plate-shaped member that for example can make by stamping-out or laser cutting by reeling and make hollow cylinder in the layer structure mode around its narrow edge helical form or spiral ground.Initial spiral-shaped due to the lath of plate-shaped member, thus lath needn't be as wire lath described in the prior strong deformation.That is to say, the steel that bendability is less also can for example have the steel of higher silicon share with the material that acts on plate-shaped member, in order to reduce the iron loss in alternating magnetic field.In addition, due to the spiral helicine geometry of lath, so material consumption obviously is less than as the material consumption when the stamping-out ring-type plate-shaped member known in the state of the art, make thus cost lower.
According to a kind of embodiment, can by bonding, welding or clip make spirally winding lath pitch of the laps at least a portion each other or fixing on load bearing component.
In addition, can provide the plate-shaped member of the outer radius of inside radius with first pitch of the laps and last pitch of the laps, wherein the radius of profiled part is between inside radius and outer radius.
The lath of plate-shaped member can utilize an end to be fixed on profiled part, wherein rotate for the lath of reeling makes profiled part, thereby spiral helicine lath is wound on profiled part and clings on the outline of profiled part.
According to another aspect, the machine part of cylindricality has been proposed, it is by maybe can be by the said method manufacturing.
According to another aspect, designed above-mentioned machine part as the stator of motor or the application of stator support.
According to another aspect, be provided with a kind of device for the manufacture of particularly using the cylindricality machine part in motor.This device comprises:
-cylindricality, columniform profiled part particularly, in order to make lath helical form or spiral be wound into a plurality of pitch of the laps along the axial direction of body, thereby the pitch of the laps through-thickness of lath against each other, and the Width of lath extends along following direction, and described perpendicular direction is in the axial direction of described profiled part;
-be used for the installing component of coiling plate-shaped member, described plate-shaped member has the lath of spiral extension in the sheet material primary flat, described lath has along the thickness of the thickness direction that extends perpendicular to the sheet material primary flat and has along the width of the Width that is parallel to the extension of sheet material primary flat
Wherein installing component has column cap, and in the time of on being wound up into profiled part, this column cap keeps lath anti-rotationly and guarantees to slide along the bearing of trend of lath and reel being used for.
Description of drawings
The below describes the preferred embodiments of the present invention with reference to the accompanying drawings in detail.Wherein show:
Fig. 1 a and Fig. 1 b show the different embodiments for the manufacture of the cylindrical helical form plate-shaped member with layer structure;
Fig. 2 shows the cylindrical perspective view with layer structure, and this cylinder is made by one of helical form plate-shaped member of Fig. 1 a or 1b;
Fig. 3 a to 3c shows the layout of spiral helicine plate-shaped member on main shaft, with the coiling plate-shaped member;
Fig. 4 a and 4b illustrate the clamping device for winding main shaft;
Fig. 5 illustrates the detailed view for the column cap of the installation unit of coiling helical form plate-shaped member;
Fig. 6 a to 6e shows for the helical form plate-shaped member being wound up into the detailed view of the method on main shaft.
Embodiment
Describe below for make the method for column machine part, for example stator or stator support in layer structure mode (Lamellenaufbauweise).
Important element is plate-shaped member 1 concerning this manufacture method, and this plate-shaped member has lath, and it has spiral helicine geometry in the sheet material primary flat.Two kinds of embodiments at this plate-shaped member 1 shown in Fig. 1 a and Fig. 1 b.The difference of the spiral helicine plate-shaped member of Fig. 1 a and Fig. 1 b is its manufacture.The spiral helicine plate-shaped member 1 of Fig. 1 a is made by stamping-out, wherein between each breadth of spiral helicine plate-shaped member 1 due to the width of stamping-out blade appearance distance.When using punching process for the manufacture of spiral helicine plate-shaped member 1, this radial distance for example is about 1mm and corresponding to the thickness of blanking tool.
On the contrary, the spiral helicine plate-shaped member of Fig. 1 b is made by means of laser cutting method, utilizes this laser cutting method can make a plurality of narrower and more accurate cutting edges.In this case, 0.05mm radially can be ignored and only be about to the radial distance between the breadth of spiral helicine plate-shaped member when using laser cutting method.In other words, the difference between two geometries shown in Fig. 1 a and 1b only is, the radial distance difference between two adjacent pitch of the laps of spiral helicine plate-shaped member 1.
Spiral helicine plate-shaped member 1 by inner edges, namely is wound up into preferred on the main shaft 2 of cylindricality as profiled part at this towards the edge of the mid point of spiral helicine geometry, wherein reel with helical form or spiral.Spiral-shaped or the helical shaped of reeling makes between adjacent pitch of the laps along the axial direction of main shaft and staggers and not radially.This staggers preferably corresponding to thickness of plate-shaped member 1, so as to make plate-shaped member 1 pitch of the laps each layer against each other.
Due to the design of the helical form of plate-shaped member 1, thus the distortion when plate-shaped member 1 is wound up on main shaft 2 with compare when winding wire-like plate-shaped member or the wire lath like that as the aforementioned obviously less.This is because spiral helicine plate-shaped member has had crooked profile.For this reason, the material of plate-shaped member 1 needn't be as crooked according to the material of the wire lath of prior art.For this reason, the steel with higher silicon share can be with the material that acts on plate-shaped member 1, in order to iron loss, for example magnetic hysteresis loss (Hystereseverschluss) and eddy current loss are minimized, described loss can form in alternating magnetic field.This can be favourable concerning multiple application, for example concerning the motor of electronic rectifier.
Another advantage of the helical form geometry of the spiral helicine plate-shaped member of Fig. 1 a and Fig. 1 b is, produces less material leftover pieces in it is made, and can reduce thus material consumption and produce lower cost.
Figure 2 illustrates the cylinder of the layer structure mode of being made by the helical form plate-shaped member of Fig. 1 a or 1b, this cylinder is made by the main shaft 2 that the inward flange that utilizes spiral helicine plate-shaped member 1 is wound around cylindricality.
In the cylindrical structure with layer structure mode according to Fig. 2, in order to extend vertically cylinder, can be with the overlapping placement of a plurality of this body that is formed by a plurality of spiral helicine plate-shaped members.Be known that being classified as crystal grain has the direction of easy axis first-selected direction of easy magnetization (leichte magnetisch Vorzugsrichtung) in other words without (Non-Grain-Oriented) steel plate itself that is orientated.Steel plate is simpler or more promptly be magnetized than right angle orientation with little degree along this direction of magnetization.In order to eliminate this direction of magnetization (anisotropy) in the cylinder of being made by a plurality of spiral helicine plate-shaped members, each cylinder that is formed by spiral helicine plate-shaped member respectively is in the definite angle that can rotate relative to one another before placing that overlaps each other.Can rotate this direction of magnetization thus, thereby no longer have the direction of magnetization in completing the cylinder of layout.
During this external use manufacturing method according to the invention, during utilizing spiral helicine plate-shaped member winding main shaft, make the direction of magnetization automatically and each pitch of the laps staggers, because the radius of each pitch of the laps of spiral helicine plate-shaped member changes.Therefore, utilize another advantage of spiral helicine plate-shaped member winding main shaft to be, can form cylinder by single type, namely consisted of by a unique spiral helicine plate-shaped member, and needn't bear magnetic anisotropy.
Fig. 3 a to 3c, 4a and 4b and 5 have schematically shown and have been used for carrying out for make device and the method for cylindrical method in the layer structure mode.
Fig. 3 a to Fig. 3 c showed before the lath of spiral helicine plate-shaped member is reeled around main shaft 2, initial position and the layout of spiral helicine plate-shaped member 1 on main shaft.The external diameter of main shaft is for example corresponding to the cylindrical internal diameter of expecting.At first, spiral helicine plate-shaped member 1 is fixed on main shaft 2 and keeps by the guider 3 shown in Fig. 3 b in vertical position at some P place.Spiral helicine plate-shaped member 1 remains on the pitch of the laps subsequently of spiral helicine plate-shaped member at some Q place subsequently and meets with stresses with putting forth effort T, and this stress is tangentially to work with respect to the side of main shaft 2.Under the effect of this stress, some Q moves to the position after next-door neighbour point P, and column main shaft 2 has carried out complete one and turns.
Applied side force F during cylindrical the first pitch of the laps, and this side force is distributed on the regional A of its circumference, as illustrating by the shadow region in Fig. 3 c.When plate-shaped member was reeled around main shaft under stress T around the edge, the side force F of this distribution remained on its edge spiral helicine plate-shaped member.In the situation that this side force F not, the lath of spiral helicine plate-shaped member certainly can be crooked and flatly be on the main shaft surface.
Fig. 4 a and 4b illustrate in greater detail, and how to keep spiral helicine plate-shaped member and make it to be under stress.Fig. 4 b illustrates the vertical view of Fig. 4 a.In this vertical view, can see the some Q that is positioned at some P rear.Lath is at installation unit 4 maintenances of Q place by having two column caps 5, two power F of column cap
TBe applied on lath.These two power F
TEnough large, in order to make lath 1 remain on regularly correct position, however also enough little, when being wound on main shaft 2 with convenient lath, the lath of spiral helicine plate-shaped member 1 can be slided between two column caps 5.
Fig. 5 illustrates two column caps 5 of installation unit 4 and the cross section of lath.One of column cap 5 (being the left side column cap in this case) and guide part 6 form together, avoid this lath along being displaced sideways when reeling with the lath of the spiral helicine plate-shaped member 1 of box lunch.Two column caps 5 are located by clamp arm, and this clamp arm compresses column cap 5 and when the lath of spiral helicine plate-shaped member 1 is reeled, stress T is applied on lath.
Fig. 6 shows the winding process that is divided into 5 stages.Fig. 6 a shows the initial position of spiral helicine plate-shaped member 1 before winding process begins.During winding process, main shaft 2 rotates around its z axis with constant angular velocity omega, and plate-shaped member moves along the Z direction with constant linear speed s simultaneously.Main shaft required cylinder height outside the whole linear displacement of Z direction and the thickness of having deducted spiral helicine plate-shaped member equates.
Fig. 6 b to 6d shows the spiral helicine plate-shaped member in winding process.Within the unwound part of spiral helicine plate-shaped member 1 during this process is positioned at guide part.The plate-shaped member 1 of reeling around main shaft 2 is subsequently or by being welded on body the pre-position or keeping together by a kind of clamping device along outer surface.Cylinder takes off from main shaft 2 subsequently.In order to reduce the mechanical pressure in body, heat treatment body at high temperature.So also can reduce in alternating magnetic field the magnetic hysteresis loss that produces in the cylinder of structure like this.
Claims (8)
1. be used for making the method especially for the cylindricality machine part of motor, comprise the steps:
-plate-shaped member (1) is provided, described plate-shaped member has the lath of spiral extension in the sheet material primary flat, and described lath has along the thickness of the thickness direction that extends perpendicular to the sheet material primary flat and has along the width of the Width that is parallel to the extension of sheet material primary flat;
-make lath helical form or spiral ground around cylindricality, particularly columniform profiled part is wound into a plurality of pitch of the laps along its axial direction, thereby the pitch of the laps through-thickness of lath against each other, and the Width of lath extends along following direction, and described perpendicular direction is in the axial direction of described profiled part (2);
-take off the lath of coiling from described profiled part (2), in order to obtain machine part.
2. method according to claim 1, wherein, described plate-shaped member (1) is made by sheet material by stamping-out or laser cutting.
3. method according to claim 1 and 2, wherein, make by bonding, welding or clip the lath that helical form or spiral reel pitch of the laps at least a portion each other or fixing on load bearing component.
4. the described method of any one according to claim 1 to 3 wherein, provides the plate-shaped member (1) of the outer radius of inside radius with first pitch of the laps and last pitch of the laps, and the radius of wherein said profiled part (2) is between inside radius and outer radius.
5. the described method of any one according to claim 1 to 4, wherein, the lath of described plate-shaped member (1) utilizes an end to be fixed on described profiled part (2), wherein rotate for the lath of reeling makes described profiled part (2), thus spiral helicine lath helical form or spiral be wound up into described profiled part (2) and go up and cling on the outline of described profiled part (2).
6. the machine part of cylindricality, it is by maybe making by the described method of any one according to claim 1 to 5.
7. machine part according to claim 6 is as the stator of motor or the application of stator support.
8. for the manufacture of the device that particularly uses the cylindricality machine part in motor, described device comprises:
-cylindricality, columniform profiled part (2) particularly, so that the axial direction along described profiled part (2) is wound into a plurality of pitch of the laps with making lath helical form or spiral, thereby the pitch of the laps through-thickness of lath against each other, and the Width of lath extends along following direction, and described perpendicular direction is in the axial direction of described profiled part (2);
-be used for the installing component (4) of coiling plate-shaped member (1), described plate-shaped member has the lath of spiral extension in the sheet material primary flat, described lath has along the thickness of the thickness direction that extends perpendicular to the sheet material primary flat and has along the width of the Width that is parallel to the extension of sheet material primary flat
Wherein said installing component (4) has column cap, is being wound up into described profiled part (2) when upper, and described column cap keeps lath anti-rotationly and guarantees to slide along the bearing of trend of lath and reel being used for.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010031552.4 | 2010-07-20 | ||
| DE201010031552 DE102010031552A1 (en) | 2010-07-20 | 2010-07-20 | Method and device for producing an annular machine element, in particular for use in an electrical machine |
| PCT/EP2011/061665 WO2012010446A2 (en) | 2010-07-20 | 2011-07-08 | Method and device for producing an annular machine element, in particular for insertion into an electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103125062A true CN103125062A (en) | 2013-05-29 |
Family
ID=44503766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800354335A Pending CN103125062A (en) | 2010-07-20 | 2011-07-08 | Method and device for producing an annular machine element, in particular for insertion into an electric machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2596569A2 (en) |
| CN (1) | CN103125062A (en) |
| DE (1) | DE102010031552A1 (en) |
| WO (1) | WO2012010446A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935121A (en) * | 2014-03-20 | 2015-09-23 | 罗伯特·博世有限公司 | Method for producing electric active element and electric active element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022194390A1 (en) * | 2021-03-19 | 2022-09-22 | Che-Motor Ag | Rotating electromechanical apparatus and method of manufacture of stator winding |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1279560A (en) * | 1960-12-08 | 1961-12-22 | Thomson Houston Comp Francaise | Methods and apparatus for constructing magnetic bodies |
| DE2150313A1 (en) * | 1970-10-09 | 1972-04-13 | Unelec | Process for the manufacture of electric rotating machines |
| JPS6016159A (en) * | 1983-07-07 | 1985-01-26 | Mitsubishi Electric Corp | Manufacture of rotary electric machine |
| CN101542874A (en) * | 2006-11-27 | 2009-09-23 | 本田技研工业株式会社 | Device for producing ring core, method for producing ring core and ring core produced by that method |
| CN201440630U (en) * | 2009-07-21 | 2010-04-21 | 上海申意汽车零部件有限公司 | Device for winding iron core of vehicle generator |
-
2010
- 2010-07-20 DE DE201010031552 patent/DE102010031552A1/en not_active Withdrawn
-
2011
- 2011-07-08 CN CN2011800354335A patent/CN103125062A/en active Pending
- 2011-07-08 EP EP11730964.1A patent/EP2596569A2/en not_active Withdrawn
- 2011-07-08 WO PCT/EP2011/061665 patent/WO2012010446A2/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1279560A (en) * | 1960-12-08 | 1961-12-22 | Thomson Houston Comp Francaise | Methods and apparatus for constructing magnetic bodies |
| DE2150313A1 (en) * | 1970-10-09 | 1972-04-13 | Unelec | Process for the manufacture of electric rotating machines |
| JPS6016159A (en) * | 1983-07-07 | 1985-01-26 | Mitsubishi Electric Corp | Manufacture of rotary electric machine |
| CN101542874A (en) * | 2006-11-27 | 2009-09-23 | 本田技研工业株式会社 | Device for producing ring core, method for producing ring core and ring core produced by that method |
| CN201440630U (en) * | 2009-07-21 | 2010-04-21 | 上海申意汽车零部件有限公司 | Device for winding iron core of vehicle generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935121A (en) * | 2014-03-20 | 2015-09-23 | 罗伯特·博世有限公司 | Method for producing electric active element and electric active element |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010031552A1 (en) | 2012-01-26 |
| EP2596569A2 (en) | 2013-05-29 |
| WO2012010446A3 (en) | 2012-12-20 |
| WO2012010446A2 (en) | 2012-01-26 |
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Application publication date: 20130529 |