JPH0433562A - Stator for linear pulse motor and manufacture thereof - Google Patents
Stator for linear pulse motor and manufacture thereofInfo
- Publication number
- JPH0433562A JPH0433562A JP14080490A JP14080490A JPH0433562A JP H0433562 A JPH0433562 A JP H0433562A JP 14080490 A JP14080490 A JP 14080490A JP 14080490 A JP14080490 A JP 14080490A JP H0433562 A JPH0433562 A JP H0433562A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- stator
- iron core
- pole tooth
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 15
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000000696 magnetic material Substances 0.000 abstract description 3
- 238000005530 etching Methods 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000000470 constituent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はリニアパルスモータの固定子に関し、特に固定
子の構成及びその組立て方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a stator for a linear pulse motor, and more particularly to the structure of the stator and its assembly method.
従来、リニアパルスモータの固定子は、第４図（ａ）及
び同図（ｂ）及び第５図に示すように、バイアス用のマ
グネット１２を両側から挟持した一対の鉄心１４と、こ
の鉄心１４にそれぞれ巻装された駆動コイル１３と、各
鉄心１４の上面に密接するように配置された磁性体から
なる磁極歯］、５ａを有する磁極歯板１５とから構成さ
れ、これらを成型金型に装填し、樹脂により一体成型し
ていた。Conventionally, the stator of a linear pulse motor has a pair of iron cores 14 sandwiching a bias magnet 12 from both sides, as shown in FIGS. 4(a), 4(b), and 5. It consists of a drive coil 13 wound around each core 14, and a magnetic pole tooth plate 15 made of a magnetic material arranged in close contact with the upper surface of each iron core 14. It was loaded and integrally molded with resin.
上述した従来のリニアパルスモータの固定子は、組立て
る際、鉄心１４と磁極歯板１５の磁極歯］、５ａとを密
着させるためには、例えば、接着等により予め固定する
必要がある。また、鉄心１４及び磁極歯板１５の寸法に
“ばらつき″があるなめ、寸法が小さくて一体成型時に
金型の中で構成部材が傾いたり、あるいは、寸法が大き
いと磁極歯板１５が金型に押圧されたときに変形を起す
恐れがあった。このなめ成型後に研削加工を行って所定
の寸法に仕上げている。When assembling the stator of the conventional linear pulse motor described above, in order to bring the iron core 14 and the magnetic pole teeth of the magnetic pole tooth plate 15 into close contact with each other, it is necessary to fix the stator in advance by, for example, adhesive. In addition, since there are "variations" in the dimensions of the iron core 14 and the magnetic pole tooth plate 15, if the dimensions are small, the component parts may tilt in the mold when integrally molded, or if the dimensions are large, the magnetic pole tooth plate 15 may not fit into the mold. There was a risk of deformation when pressed. After this round molding, a grinding process is performed to obtain the desired dimensions.
本発明のリニアパルスモータの固定子は、磁気バイアス
用のマグネットと、前記マグネットを挟持するように配
置され、それぞれ一対の孔を有する一対の磁性板と、前
記磁性板の前記孔にそれぞれの一端部を嵌合し、且つ、
他端部に張出し頭部を有する複数の鉄心と、前記鉄心の
それぞれに巻装された複数の駆動コイルと、前記鉄心の
前記張出し頭部のそれぞれに対応して配置される磁極歯
群を有する磁極歯板とにより構成される。The stator of the linear pulse motor of the present invention includes a magnet for magnetic bias, a pair of magnetic plates arranged to sandwich the magnets and each having a pair of holes, and one end of each of the holes of the magnetic plates. fitting the parts, and
It has a plurality of iron cores each having an overhanging head at the other end, a plurality of drive coils wound around each of the iron cores, and a group of magnetic pole teeth arranged corresponding to each of the overhanging heads of the iron core. It consists of a magnetic pole tooth plate.
また、その製造方法は予め前記駆動コイルを巻装した前
記鉄心を前記磁性板の前記孔にそれぞれ低圧入し、前記
マグネットを前記磁性板で挟持し、前記鉄心の前記張出
し頭部の上面に前記磁極歯板を配置し、成型金型に装填
して押圧し、前記鉄心を所定量圧入すると共に、前記鉄
心と前記磁極歯板とを密接させた状態で樹脂成型を行い
一体化する。In addition, the manufacturing method is such that the iron cores around which the driving coils are wound in advance are fit into the holes of the magnetic plates under low pressure, the magnets are held between the magnetic plates, and the upper surface of the protruding head of the iron core is placed on the upper surface of the overhanging head of the iron core. A magnetic pole tooth plate is arranged, loaded into a mold and pressed, and a predetermined amount of the iron core is press-fitted, and resin molding is performed to integrate the iron core and the magnetic pole tooth plate in close contact with each other.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図（ａ）は本発明の一実施例を示す斜視図である。FIG. 1(a) is a perspective view showing an embodiment of the present invention.
第１図（ｂ）は同図（ａ＞のＡ−Ａ線断面図である。FIG. 1(b) is a sectional view taken along line A--A in FIG. 1(a).
第２図は本発明の構成部材を示す分解斜視図である。第
１図（ａ）、同図（ｂ）及び第２図において、本発明の
リニアパルスモータの固定子は磁性板１．マグネット２
．駆動コイル３．鉄心４゜磁極歯板５及び樹脂成型部６
から構成されている。磁性板１は磁性体よりなる磁気回
路を構成するものであって、一対の孔を有している。そ
してバイアス用のマグネット２を一対の磁性板１で両側
から挟持され、更に、一対の孔には駆動コイル３を巻装
した鉄心４の脚部がそれぞれ低圧入（仮組み）されてい
る。このため、従来のように仮組７み固定の際の接着剤
等は不要となる。また、この鉄心４の形状は張出し頭部
を有する棒状であって、その頭部上面にはエツチング加
工、あるいはプレス加工等により形成された磁極歯５ａ
群を有する磁極歯板５がそれぞれ対応して配置され、こ
の状態て成型金型に装填される。FIG. 2 is an exploded perspective view showing the constituent members of the present invention. In FIG. 1(a), FIG. 1(b), and FIG. 2, the stator of the linear pulse motor of the present invention has a magnetic plate 1. magnet 2
．． Drive coil 3. Iron core 4° magnetic pole tooth plate 5 and resin molded part 6
It consists of The magnetic plate 1 constitutes a magnetic circuit made of a magnetic material, and has a pair of holes. A bias magnet 2 is sandwiched between a pair of magnetic plates 1 from both sides, and legs of an iron core 4 around which a driving coil 3 is wound are low press-fitted (temporarily assembled) into the pair of holes. Therefore, there is no need for adhesive or the like when fixing the temporary assembly 7 as in the conventional case. The shape of the iron core 4 is a bar with an overhanging head, and the upper surface of the head has magnetic pole teeth 5a formed by etching or pressing.
The magnetic pole tooth plates 5 having groups are arranged in correspondence with each other, and in this state are loaded into a mold.
第３図（ａ）は成型金型内における鉄心の圧入前の状態
を示す図である。第３図（ａ）において、成型金型９ａ
、９ｂは押圧されていないため成型時より離れた位置に
あり、鉄心４は磁性板１の穴に低圧入された状態のまま
である。FIG. 3(a) is a diagram showing the state of the iron core before being press-fitted into the molding die. In FIG. 3(a), the mold 9a
, 9b are not pressed, and therefore are located at a farther position than when molded, and the iron core 4 remains in the state of being press-fitted into the hole of the magnetic plate 1 with a low pressure.
第３図（ｂ）は成型金型内における鉄心の圧入後の状態
を示す図である。第３図（ｂ）におい＝５−
て、成型金型９ａ、９ｂが押圧されて互いに密着すると
、鉄心４は磁性板１の孔に圧入され、所定の寸法で嵌合
されると共に、磁極歯５ａは鉄心４の頭部上面に密接す
る。ここで、７は鉄心４の長さ及び磁極歯板５の板厚の
゛ばらつき″を吸収するための間隙であって、鉄心４の
長さは、これを考慮して予め短かく作られている。そし
て、この状態で成型金型９ａ、９ｂの成型空間８には射
出成型機（図示せず）から溶融した樹脂が射出され、こ
れらを一体に成型する。FIG. 3(b) is a diagram showing the state of the iron core after being press-fitted into the molding die. When the molding dies 9a and 9b are pressed and brought into close contact with each other, the iron core 4 is press-fitted into the hole of the magnetic plate 1 and fitted with a predetermined dimension, and the magnetic pole teeth 5a is in close contact with the upper surface of the head of the iron core 4. Here, 7 is a gap for absorbing "variations" in the length of the iron core 4 and the thickness of the magnetic pole tooth plate 5, and the length of the iron core 4 is made short in advance in consideration of this. In this state, molten resin is injected from an injection molding machine (not shown) into the molding spaces 8 of the molding molds 9a and 9b, and these are integrally molded.
以上説明したように本発明によれば、構成部材を仮組み
して成型金型に装填した後、圧入組立て及び樹脂成型を
行うため、予め接着等による固定の必要もない。また、
磁気回路を構成する磁極板に鉄心を圧入固定する構造と
したことにより、鉄心及び磁極歯板の寸法の゛ばらつき
”′を吸収することが可能となり、一体成型の際に金型
の内部で構成部材が傾いたり、変形することもなく、従
って、追加加工の必要もない。As explained above, according to the present invention, after the constituent members are temporarily assembled and loaded into a molding die, press-fit assembly and resin molding are performed, so there is no need for prior fixation by adhesion or the like. Also,
By adopting a structure in which the iron core is press-fitted and fixed into the magnetic pole plate that constitutes the magnetic circuit, it is possible to absorb ``variations'' in the dimensions of the iron core and the magnetic pole tooth plate, and when integrally molded, the iron core is fixed inside the mold. The member does not tilt or deform, so there is no need for additional processing.
第１図（ａ）は本発明の一実施例を示ず斜視図、第１図
（ｂ）は同図（ａ、 ）のＡ−Ａ線断面図、第２図は本
発明の一実施例の構成部材を示す分解斜視図、第３図（
ａ、 ）及び同図（ｂ）は成型金型内における鉄心の圧
入前及び圧入後の状態をそれぞれ示す図、第４図（ａ＞
は従来例を示す斜視図、第４図（ｂ）は同図（ａ）のＢ
−Ｂ線断面図、第５図は従来例の構成部材を示す分解斜
視図である。
１・・・磁極板、２，１２・・・マグネット、３．１３
・・駆動コイル、４，１４・・・鉄心、５．１５・・・
磁極歯板、５ ａ、 、 １．５ａ・・・磁極歯、６．
１６・・・樹脂成型部、７・・・間隙、８・・・成型空
間、９ａ、９ｂ・・・成型金型。FIG. 1(a) is a perspective view of an embodiment of the present invention, FIG. 1(b) is a sectional view taken along line A-A in FIG. 1(a), and FIG. 2 is a perspective view of an embodiment of the present invention. Figure 3 is an exploded perspective view showing the constituent members of the
Figure 4 (a) and (b) are diagrams showing the state before and after press-fitting the iron core in the molding die, respectively, and Figure 4 (a>
4(b) is a perspective view showing a conventional example, and FIG. 4(b) is a perspective view showing a conventional example.
-B sectional view and FIG. 5 are exploded perspective views showing the structural members of the conventional example. 1...Magnetic pole plate, 2,12...Magnet, 3.13
...Drive coil, 4,14...Iron core, 5.15...
Magnetic pole tooth plate, 5a, , 1.5a...Magnetic pole tooth, 6.
16...Resin molding portion, 7...Gap, 8...Molding space, 9a, 9b...Molding mold.
Claims (1)
挟持するように配置され、それぞれ一対の孔を有する一
対の磁性板と、前記磁性板の前記孔にそれぞれの一端部
を嵌合し、且つ、他端部に張出し頭部を有する複数の鉄
心と、前記鉄心のそれぞれに巻装された複数の駆動コイ
ルと、前記鉄心の前記張出し頭部のそれぞれに対応して
配置される磁極歯群を有する磁極歯板とを備え、樹脂に
より一体的に固定されたことを特徴とするリニアパルス
モータの固定子。 ２、請求項１記載のリニアパルスモータの固定子を製造
する方法において、予め前記駆動コイルを巻装した前記
鉄心を前記磁性板の前記孔にそれぞれ仮圧入し、前記マ
グネットを前記磁性板で挟持し、前記鉄心の前記張出し
頭部の上面に前記磁極歯板を配置し、成型金型に装填し
て押圧し、前記鉄心を所定量圧入すると共に、前記鉄心
と前記磁極歯板とを密接させた状態で樹脂成型を行い一
体化することを特徴とするリニアパルスモータの固定子
の製造方法。[Claims] 1. A magnet for magnetic bias, a pair of magnetic plates arranged to sandwich the magnet and each having a pair of holes, and one end of each of the magnetic plates is fitted into the hole. a plurality of iron cores that are connected together and have an overhang head at the other end; a plurality of drive coils wound around each of the cores; and arranged corresponding to each of the overhang heads of the iron core. 1. A stator for a linear pulse motor, comprising a magnetic pole tooth plate having a magnetic pole tooth group, and integrally fixed with resin. 2. The method for manufacturing a stator for a linear pulse motor according to claim 1, wherein the iron cores, each of which has been wound with the driving coil in advance, are temporarily press-fitted into the holes of the magnetic plates, and the magnets are sandwiched between the magnetic plates. Then, the magnetic pole tooth plate is arranged on the upper surface of the overhanging head of the iron core, and is loaded and pressed into a mold to press fit the iron core by a predetermined amount, and bring the iron core and the magnetic pole tooth plate into close contact with each other. A method for manufacturing a stator for a linear pulse motor, characterized in that the stator is molded with resin in a state in which the stator is molded into one piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2140804A JP2758696B2 (en) | 1990-05-30 | 1990-05-30 | Stator of linear pulse motor and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2140804A JP2758696B2 (en) | 1990-05-30 | 1990-05-30 | Stator of linear pulse motor and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0433562A true JPH0433562A (en) | 1992-02-04 |
| JP2758696B2 JP2758696B2 (en) | 1998-05-28 |
Family
ID=15277129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2140804A Expired - Fee Related JP2758696B2 (en) | 1990-05-30 | 1990-05-30 | Stator of linear pulse motor and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2758696B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007099010A1 (en) * | 2006-03-01 | 2007-09-07 | Siemens Aktiengesellschaft | Electrical machine having plastic-sheathed pole teeth, and a corresponding method |
| US7853492B1 (en) | 2008-03-17 | 2010-12-14 | Kirklin Frederic J | System for merchandise ordering and order fulfillment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS648862A (en) * | 1987-06-30 | 1989-01-12 | Gunma Nippon Denki Kk | Manufacture of linear pulse motor stator |
| JPH02101952A (en) * | 1988-10-05 | 1990-04-13 | Gunma Nippon Denki Kk | Manufacture of stator of linear pulse motor |
-
1990
- 1990-05-30 JP JP2140804A patent/JP2758696B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS648862A (en) * | 1987-06-30 | 1989-01-12 | Gunma Nippon Denki Kk | Manufacture of linear pulse motor stator |
| JPH02101952A (en) * | 1988-10-05 | 1990-04-13 | Gunma Nippon Denki Kk | Manufacture of stator of linear pulse motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007099010A1 (en) * | 2006-03-01 | 2007-09-07 | Siemens Aktiengesellschaft | Electrical machine having plastic-sheathed pole teeth, and a corresponding method |
| JP2009528808A (en) * | 2006-03-01 | 2009-08-06 | シーメンス アクチエンゲゼルシヤフト | Electric machine having plastic coated magnetic pole teeth and method of manufacturing magnetic pole teeth |
| US8115347B2 (en) | 2006-03-01 | 2012-02-14 | Siemens Aktiengesellschaft | Electrical machine having plastic-sheathed pole teeth, and a corresponding method |
| US7853492B1 (en) | 2008-03-17 | 2010-12-14 | Kirklin Frederic J | System for merchandise ordering and order fulfillment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2758696B2 (en) | 1998-05-28 |
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