JPS5925542A - Rectilinear type motor actuator - Google Patents
Rectilinear type motor actuatorInfo
- Publication number
- JPS5925542A JPS5925542A JP13348782A JP13348782A JPS5925542A JP S5925542 A JPS5925542 A JP S5925542A JP 13348782 A JP13348782 A JP 13348782A JP 13348782 A JP13348782 A JP 13348782A JP S5925542 A JPS5925542 A JP S5925542A
- Authority
- JP
- Japan
- Prior art keywords
- nut
- rotor
- shaft
- screw
- motor actuator
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は直進機構を内蔵したモータアクチーエータに関
するものであり、小形で安価な直進形モータアクチュエ
ータを提供しようとするものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a motor actuator with a built-in linear movement mechanism, and an object thereof is to provide a small and inexpensive linear movement motor actuator.
従来の構成とその問題点
従来の直進機構を付加したモータアクチュエータの一例
を第1図、第2図に示す。1はパルスモータ又はDCサ
ーボモータ等の駆動モータ、2は出力軸、3はボールね
じのねじ/ヤフト、4は上記出力軸2とねじンヤ7ト3
を同一軸上に接続するためのカップリング、6はボール
ねじのナツト部、6ばねしシャフト5の一端を固定する
だめの軸受、7は軸受6を固定するだめの軸受ハウジン
グ、8は直進させようとする被移動物であり、例えばX
−Yテープの台である。9は被移動物のガイダー兼回9
止めである。Conventional configuration and its problems An example of a motor actuator with a conventional linear movement mechanism is shown in FIGS. 1 and 2. 1 is a drive motor such as a pulse motor or a DC servo motor, 2 is an output shaft, 3 is a ball screw screw/yaft, and 4 is the output shaft 2 and screw shaft 7.
6 is a nut part of a ball screw, 6 is a bearing for fixing one end of the spring shaft 5, 7 is a bearing housing for fixing the bearing 6, 8 is a shaft for straight movement For example, X
-It is a stand for Y tape. 9 is a guider for the object to be moved 9
It's a stop.
しかし上記従来例の構成では、モータ部と直進機構部を
別々に作り、カンプリングで接続する構成においては、
直進機構部のスペースとして最低移動量のスペ′ニスが
必要であり、又、カップリング部のスペースも必要であ
る。このカップリングスペースは小出力のもの程、相対
的に大きくなる傾向に有る。さらにナツト及び被移動物
の回り止め機構も必要となる。材料コスト的に見ても、
直進機構部用の軸受や直進ガイダ及びカップリングが必
要であシ高価なものとなる。However, in the configuration of the conventional example described above, the motor section and the linear movement mechanism section are made separately and connected by a compression ring.
A minimum amount of space is required for the linear movement mechanism, and space for the coupling section is also required. This coupling space tends to become relatively larger as the output becomes smaller. Furthermore, a mechanism for preventing rotation of the nut and the object to be moved is also required. Even from a material cost perspective,
Bearings, linear guiders, and couplings for the linear movement mechanism are required and are expensive.
発明のe、mv、蹟尻
本発明は上記従来例の欠点を解消するものであり、直進
機構をモータアクチュエータ内に内蔵し、出来る限りe
−夕と直進機構部との部品の共有化をはかシ、それによ
ってコンパクトで安価な直進形モータアクチュエータを
提供しようとするものである。The present invention eliminates the drawbacks of the above-mentioned conventional example, and incorporates a linear movement mechanism into the motor actuator to improve e
- The aim is to share parts between the actuator and the linear movement mechanism, thereby providing a compact and inexpensive linear movement motor actuator.
実施例の説明
第3図は本発明に係る直進形アクチュエータの一例であ
り、10はステータ、11はステータを保持するハウジ
ング、12a、12bは各々エンドブラケット、13は
ロータ磁石又はロータコア、14は上記ロータ磁石又は
ロータコア13を軸受IE5a及び15bで保持するた
めのロータパイプ、16は内径側にねし溝を設けたナツ
ト、17は上記ナツトに嵌合するねしシャフトであり、
同図のBの部分が非円形となっている。18は上記ねし
シャフト170B部と適度なりリヤランスで嵌合し、か
つプラケット12bに固定されたンヤフトの回り止め用
のリングであり焼結合金等で作られている。19は軸方
向への抜は止め防止用キャップて、ねじンヤフト17の
先端に固定されている。DESCRIPTION OF EMBODIMENTS FIG. 3 shows an example of a linear actuator according to the present invention, in which 10 is a stator, 11 is a housing that holds the stator, 12a and 12b are end brackets, 13 is a rotor magnet or rotor core, and 14 is the above-mentioned member. A rotor pipe for holding the rotor magnet or rotor core 13 with bearings IE5a and 15b, 16 is a nut with a threaded groove on the inner diameter side, 17 is a threaded shaft that fits into the nut,
The part B in the figure is non-circular. Reference numeral 18 denotes a ring which is fitted with the above-mentioned threaded shaft 170B portion with a proper rear balance and is fixed to the placket 12b to prevent rotation of the shaft, and is made of a sintered alloy or the like. Reference numeral 19 denotes a cap for preventing removal in the axial direction, and is fixed to the tip of the threaded shaft 17.
第4図及び第5図は第2図のA−A′部断面であり、各
々ねじ/ギフト8部形状としてDカット及びHカットを
施した場合の例を示している。以下第3図に従って、ア
クチュエータの動作を説明する。ステータ1oを図示し
ていない駆動回路で適当に励磁すると、ロータ磁石又は
ロータコア13はトルクを発生し回転する。これに伴っ
てロータ保持バイブ14及びナツト16も一緒に回転す
る。FIGS. 4 and 5 are cross sections taken along the line AA' in FIG. 2, and show examples in which a D cut and an H cut are made as the screw/gift 8-part shape, respectively. The operation of the actuator will be explained below with reference to FIG. When the stator 1o is appropriately excited by a drive circuit (not shown), the rotor magnet or rotor core 13 generates torque and rotates. Along with this, the rotor holding vibrator 14 and the nut 16 also rotate together.
ナツト16に嵌合するねじンヤフトは、同図Bの部分で
リング18によって回転止めが旅こされているため、ナ
ツト16の回転に伴って軸方向に移動する。The threaded shaft fitted into the nut 16 moves in the axial direction as the nut 16 rotates, since the ring 18 prevents rotation at the portion B in the figure.
ここでねじ/ヤフトの推力fは
で表わされる。ここてTはモニタトルクを、Pはねじピ
ッチを、ηはねし効率を表わす。Here, the thrust force f of the screw/yaft is expressed as. Here, T represents the monitor torque, P represents the thread pitch, and η represents the rebound efficiency.
発明の効果
この様に本発明は、モータアクチュエータのロータの内
部にねし機構を内蔵する事により、外付けの直進機構や
カップリングを不要にし、直進形モータアクチーエータ
の外寸法を大巾に縮める事ができる。又、モータと直進
機構の軸受を共用化し、モータシャフトやカップリング
を不要にし、さらにモータ部材を利用した簡単なねじシ
ャフト回り止め機構が可能となり、コスト的メリットは
非常に大きい。Effects of the Invention As described above, the present invention incorporates a screw mechanism inside the rotor of a motor actuator, thereby eliminating the need for an external linear movement mechanism or coupling, and greatly increasing the external dimensions of a linear movement type motor actuator. It can be reduced to In addition, the bearings of the motor and the linear movement mechanism can be shared, eliminating the need for a motor shaft or coupling, and furthermore, it is possible to create a simple screw shaft rotation prevention mechanism using the motor member, which has a very large cost advantage.
又この直進形モータアクチーエータは、ロボットハンド
用や自動車エンジンコントロール用等の用途が見込まれ
、そのスペース的及びコスト的工業価値は非常に太きい
ものがある。Moreover, this linear motor actuator is expected to be used for robot hands, automobile engine control, etc., and its industrial value in terms of space and cost is extremely large.
第1図は従来の直進機構を接続したモータアクチーエー
タの構成図、第2図は同モータアクチーエータの被移動
物の断面図、第3図は本発明の一実施例におけるモータ
アクチュエータの断面図、第4図は第層αのA−A/線
の部分断面図、第5図はねしシャフトの他の実施例の断
面図である。
12b・・−・ エンドブラケット、13・・ ・ロー
タ磁石又はロータコア、16・・−ナツト、17 ・ね
じ/ヤフト、18・・リング。
代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図
第2図
第3図
235Fig. 1 is a configuration diagram of a motor actuator connected to a conventional linear movement mechanism, Fig. 2 is a sectional view of an object to be moved by the motor actuator, and Fig. 3 is a diagram of a motor actuator according to an embodiment of the present invention. 4 is a partial sectional view taken along line A-A/ of the layer α, and FIG. 5 is a sectional view of another embodiment of the spring shaft. 12b... End bracket, 13... Rotor magnet or rotor core, 16... Nut, 17... Screw/yaft, 18... Ring. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 235
Claims (1)
心軸上に固定されかつ内径側にねじ溝を設けたナンドと
、このナツトに嵌合し、かつ一部に非円形部を有し、往
復道可能なねじシャフトと、このねじシャ71・の非円
形部に嵌合し、かつブラA NAND is fixed to the inner diameter of the rotor magnet or the rotor core on a concentric axis with the rotor and has a threaded groove on the inner diameter side, and is fitted into this nut and has a non-circular part in part, and has a reciprocating path. A possible screw shaft and a non-circular part of this screw shaft 71.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13348782A JPS5925542A (en) | 1982-07-29 | 1982-07-29 | Rectilinear type motor actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13348782A JPS5925542A (en) | 1982-07-29 | 1982-07-29 | Rectilinear type motor actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5925542A true JPS5925542A (en) | 1984-02-09 |
Family
ID=15105913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13348782A Pending JPS5925542A (en) | 1982-07-29 | 1982-07-29 | Rectilinear type motor actuator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5925542A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0780956A1 (en) * | 1995-12-21 | 1997-06-25 | Philips Patentverwaltung GmbH | Permanent magnet rotor for claw-pole stepping motor |
CN1068149C (en) * | 1995-08-31 | 2001-07-04 | 王广生 | Magnetic energy storage device |
JP2013247858A (en) * | 2012-05-29 | 2013-12-09 | Lg Innotek Co Ltd | Swivel actuator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5761959B2 (en) * | 1979-12-03 | 1982-12-27 | Japan Steel Works Ltd |
-
1982
- 1982-07-29 JP JP13348782A patent/JPS5925542A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5761959B2 (en) * | 1979-12-03 | 1982-12-27 | Japan Steel Works Ltd |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1068149C (en) * | 1995-08-31 | 2001-07-04 | 王广生 | Magnetic energy storage device |
EP0780956A1 (en) * | 1995-12-21 | 1997-06-25 | Philips Patentverwaltung GmbH | Permanent magnet rotor for claw-pole stepping motor |
US6008554A (en) * | 1995-12-21 | 1999-12-28 | U.S. Philips Corporation | Claw-pole stepper motor having a rotor supported by an axial bearing and a rotor-magnet extending beyond an end of a stator return element |
KR100568886B1 (en) * | 1995-12-21 | 2006-08-10 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Clawpole stepper motor with stator |
JP2013247858A (en) * | 2012-05-29 | 2013-12-09 | Lg Innotek Co Ltd | Swivel actuator |
CN103453095A (en) * | 2012-05-29 | 2013-12-18 | Lg伊诺特有限公司 | Swiveling actuator |
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