JP2758696B2 - Stator of linear pulse motor and method of manufacturing the same - Google Patents
Stator of linear pulse motor and method of manufacturing the sameInfo
- Publication number
- JP2758696B2 JP2758696B2 JP2140804A JP14080490A JP2758696B2 JP 2758696 B2 JP2758696 B2 JP 2758696B2 JP 2140804 A JP2140804 A JP 2140804A JP 14080490 A JP14080490 A JP 14080490A JP 2758696 B2 JP2758696 B2 JP 2758696B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- iron core
- stator
- pulse motor
- linear pulse
- 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.)
- Expired - Fee Related
Links
Landscapes
- Linear Motors (AREA)
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。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator of a linear pulse motor, and more particularly to a configuration of a stator and a method of assembling the same.
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15a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 the linear pulse motor is shown in FIG.
5 (B) and FIG. 5, a pair of iron cores 14 holding a bias magnet 12 from both sides, a drive coil 13 wound around each of the iron cores 14, and each iron core 14
And a magnetic pole tooth plate 15 having magnetic pole teeth 15a made of a magnetic material disposed so as to be in close contact with the upper surface of the magnetic head, and these are loaded in a molding die 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15a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”があるため、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。このた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。In assembling the above-described stator of the conventional linear pulse motor, in order to bring the iron core 14 into close contact with the magnetic pole teeth 15a of the magnetic pole tooth plate 15, it is necessary to fix the stator in advance by, for example, bonding. In addition, since the dimensions of the iron core 14 and the magnetic pole tooth plate 15 have a “variation”, the components are inclined in the mold during the integral molding due to the small size, or the magnetic pole tooth plate 15 becomes large when the size is large. When pressed against, there was a risk of deformation. For this reason, after the molding, a grinding process is performed to finish to a predetermined size.
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極板と、
前記磁極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
固定されたリニアパルスモータの固定子において、前記
複数の鉄心は、前記孔に嵌合した際に前記一端部の先端
面が前記磁極板の底面より突出しない長さに設定し、前
記磁極板に対する前記鉄心の高さをそれぞれ調整可能に
したことを特徴とする。The stator of the linear pulse motor of the present invention, a magnet for magnetic bias, and a pair of magnetic pole plates arranged to sandwich the magnet, each having a pair of holes,
A plurality of iron cores each having one end fitted into the hole of the pole plate and having a projecting head at the other end, a plurality of drive coils wound around each of the iron cores, A magnetic pole tooth plate having a group of magnetic pole teeth arranged corresponding to each of the overhanging heads, wherein in the stator of the linear pulse motor integrally fixed by resin, the plurality of iron cores are formed in the holes. The end surface of the one end portion is set so as not to protrude from the bottom surface of the pole plate when fitted, and the height of the iron core with respect to the pole plate can be adjusted.
また、その製造方法は予め前記駆動コイルを巻装した
前記鉄心を前記磁極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極板で挟持し、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。Further, the manufacturing method is such that the iron core on which the drive coil is wound is preliminarily press-fitted into each of the holes of the magnetic pole plate, the magnet is sandwiched by the magnetic pole plates, and the iron core is provided on the upper surface of the overhanging head. A magnetic pole tooth plate is arranged, loaded into a molding die and pressed to press-fit the iron core by a predetermined amount. In addition, resin molding is performed while the iron core and the magnetic pole tooth plate are in close contact with each other to be integrated.
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 described 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. 1A 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. 1B is a sectional view taken along the line AA of FIG.
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。磁極板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を一対の磁極板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の脚部がそれぞれ仮圧入（仮組み）されている。こ
のため、従来のように仮組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ッチング加工、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、この状態で成
型金型に装填される。FIG. 2 is an exploded perspective view showing components of the present invention.
1 (a), 1 (b) and 2, the stator of the linear pulse motor according to the present invention has a magnetic plate 1, a magnet 2,
It comprises a drive coil 3, an iron core 4, a magnetic pole tooth plate 5, and a resin molded part 6. The magnetic pole plate 1 constitutes a magnetic circuit made of a magnetic material, and has a pair of holes. The bias magnet 2 is sandwiched between the pair of magnetic pole plates 1 from both sides, and the leg portions of the iron core 4 on which the drive coil 3 is wound are temporarily press-fitted (temporarily assembled) into the pair of holes. For this reason, an adhesive or the like at the time of temporary assembly and fixation as in the related art is not required. The shape of the iron core 4 is a rod shape having an overhanging head, and a magnetic pole tooth plate 5 having a group of magnetic pole teeth 5a formed by etching or pressing on the upper surface of the head corresponds respectively. It is arranged and loaded into a molding die in this state.
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9
a,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は磁極板１の穴に仮圧入された状態のままで
ある。FIG. 3A is a view showing a state before press-fitting of an iron core in a molding die. In FIG. 3 (a), the molding die 9
Since a and 9b are not pressed, they are located at positions farther apart than at the time of molding, and the iron core 4 remains in a state of being temporarily pressed into the hole of the magnetic pole plate 1.
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）において、成型金型9
a,9bが押圧されて互いに密着すると、鉄心４は磁極板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、間隙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、この“ば
らつき”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 a state after press-fitting the iron core in the molding die. In FIG. 3 (b), the molding die 9
When the a and 9b are pressed and come into close contact with each other, the core 4
And the magnetic pole teeth 5a are in close contact with the upper surface of the head of the iron core 4. Here, the gap 7 is a gap for absorbing “variation” of 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 short in advance in consideration of the “variation”. It is made in this way. And
In this state, molten resin is injected into the molding space 8 of the molding dies 9a and 9b from an injection molding machine (not shown), 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
みして成型金型に充填した後、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、且つ鉄心の長さも予め短くしたことにより、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 described above, according to the present invention, since the components are temporarily assembled and filled into a molding die, then press-fitting and resin molding are performed, so that there is no need to fix them by bonding or the like in advance. In addition, the core is press-fitted and fixed to the pole plate that composes the magnetic circuit, and the length of the core is shortened in advance. At this time, the component members do not tilt or deform inside the mold, and thus no additional processing is required.
第１図（ａ）は本発明の一実施例を示す斜視図、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、5a,15a……磁極
歯、6,16……樹脂成型部、７……間隙、８……成型空
間、9a,9b……成型金型。1 (a) is a perspective view showing an embodiment of the present invention, FIG. 1 (b) is a sectional view taken along line AA of FIG. 1 (a), and FIG. 2 is a configuration of an embodiment of the present invention. Exploded perspective view showing members, FIG. 3 (a)
4 (b) shows a state before and after press-fitting of an iron core in a molding die, FIG. 4 (a) is a perspective view showing a conventional example, and FIG. FIG. 5A is a cross-sectional view taken along the line BB of FIG. 1 ... Magnetic pole plate, 2,12 ... Magnet, 3,13 ... Driving coil, 4,14 ... Iron core, 5,15 ... Magnetic pole tooth plate, 5a, 15a ... Magnetic pole tooth, 6,16 ... Resin molding part, 7 gap, 8 molding space, 9a, 9b molding die.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−107364（ＪＰ，Ａ) 特開 平２−114851（ＪＰ，Ａ) 特開 昭59−165944（ＪＰ，Ａ) 特開 昭64−8862（ＪＰ，Ａ) 特公 平５−10026（ＪＰ，Ｂ２) 特公 平５−38550（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.6，ＤＢ名) H02K 41/00──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-107364 (JP, A) JP-A-2-114851 (JP, A) JP-A-59-165944 (JP, A) JP-A 64-64 8862 (JP, A) JP 5-10026 (JP, B2) JP 5-38550 (JP, B2) (58) Fields investigated (Int. Cl. 6 , DB name) H02K 41/00
Claims (2)
ネットを挟持するように配置され、それぞれ一対の孔を
有する一対の磁極板と、前記磁極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リニアパルスモータ
の固定子において、 前記複数の鉄心は、前記孔に嵌合した際に前記一端部の
先端面が前記磁極板の底面より突出しない長さであり、
前記磁極板に対する前記鉄心の高さをそれぞれ移動可能
にしたことを特徴とするリニアパルスモータの固定子。1. A magnet for magnetic bias, a pair of magnetic pole plates arranged to sandwich the magnet, each having a pair of holes, and one end of each of the holes is fitted into the hole of the magnetic pole plate. And a plurality of iron cores 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. And a stator of the linear pulse motor integrally fixed by a resin, wherein the plurality of iron cores have a tip end surface of the one end portion of the pole plate when fitted in the hole. It does not protrude from the bottom,
A stator for a linear pulse motor, wherein the height of the iron core with respect to the pole plate is movable.
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極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極板で挟持し、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。2. A method for manufacturing a stator of a linear pulse motor according to claim 1, wherein said cores, on which said drive coils are wound, are temporarily press-fitted into said holes of said magnetic pole plate, respectively, and said magnets are mounted on said magnetic poles. The magnetic pole tooth plate is disposed on the upper surface of the overhanging head of the iron core, loaded and pressed into a molding die, and the iron core is pressed in a predetermined amount, and the iron core and the magnetic pole tooth plate are sandwiched. A method for manufacturing a stator for a linear pulse motor, comprising: performing resin molding in a state in which the stators are in close contact with each other to integrate them.
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 JPH0433562A (en) | 1992-02-04 |
| JP2758696B2 true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006009440A1 (en) | 2006-03-01 | 2007-09-06 | Siemens Ag | Electric machine with plastic-coated pole teeth and corresponding method |
| US7853492B1 (en) | 2008-03-17 | 2010-12-14 | Kirklin Frederic J | System for merchandise ordering and order fulfillment |
Family Cites Families (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 |
| JP2752656B2 (en) * | 1988-10-05 | 1998-05-18 | 群馬日本電気株式会社 | Manufacturing method of linear pulse motor stator |
-
1990
- 1990-05-30 JP JP2140804A patent/JP2758696B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0433562A (en) | 1992-02-04 |
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