JPH01240247A - Electric servo mechanism - Google Patents
Electric servo mechanismInfo
- Publication number
- JPH01240247A JPH01240247A JP6194288A JP6194288A JPH01240247A JP H01240247 A JPH01240247 A JP H01240247A JP 6194288 A JP6194288 A JP 6194288A JP 6194288 A JP6194288 A JP 6194288A JP H01240247 A JPH01240247 A JP H01240247A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- rotor
- drive shaft
- servo
- rotor shaft
- 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
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/28—Electric drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、電動機によって駆動されるサーボ機構に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a servo mechanism driven by an electric motor.
（従来の技術）
周知のように、機械的位置または角度を制御量としてフ
ィードバック制御するサーボ機構は、各種プラントにお
ける機器の制御に広く用いられており、入力信号に応じ
て駆動される電動機（以下、操作電動機という）によっ
て変位する可動部を介して出力する構成としたものが多
い。(Prior Art) As is well known, servomechanisms that perform feedback control using mechanical position or angle as control variables are widely used to control equipment in various plants, and are used to control electric motors (hereinafter referred to as In many cases, the output is output via a movable part that is displaced by a motor (referred to as an operating motor).
ところで、このような操作電動機で駆動する電動サーボ
機構においては、操作電動機の回転軸とサーボ駆動軸に
歯数の異なる一対の歯車を噛み合わせることにより減速
して１−ルクを増大させたり、操作電動機の回転軸には
小歯車、サーボ駆動軸にはラックを取付けて噛み合わせ
ることにより回転運動を直線運動に変換させたりしてい
た６（発明が解決しようとする課題）
このため、機構が複雑になって操作や保守点検が困難に
なったり、外形が大きくなって取付スペースを広くし装
置の小形化に悪影響を及ぼしていた。By the way, in an electric servo mechanism driven by such an operating motor, a pair of gears with different numbers of teeth are meshed with the rotating shaft of the operating motor and the servo drive shaft to reduce the speed and increase the 1-lux. A small gear is attached to the rotating shaft of an electric motor, and a rack is attached to the servo drive shaft, and by meshing them, rotational motion is converted into linear motion.6 (Problem to be solved by the invention) As a result, the mechanism is complicated. This makes operation and maintenance and inspection difficult, and the large external size requires a large installation space, which has a negative impact on miniaturization of the device.
そこで、本発明の目的は、操作電動機軸とサーボ駆動軸
を直結させ、構成の簡素化と縮少化を図った電動サーボ
機構を提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electric servo mechanism in which an operating motor shaft and a servo drive shaft are directly connected, and the structure is simplified and reduced in size.
（課題を解決するための手段）
本発明は、電動機によって駆動される電動サーボ機構に
おいて、電動機の回転子軸を中空にし、この中空部分に
サーボ軸を駆動する駆動軸を貫通させると共にねし結合
し、電動機の回転運動を駆動軸の直線運動に変換するよ
うにしたものである。(Means for Solving the Problems) The present invention provides an electric servo mechanism driven by an electric motor, in which the rotor shaft of the electric motor is made hollow, and a drive shaft that drives the servo shaft is passed through this hollow portion and is screw-coupled. However, the rotary motion of the electric motor is converted into linear motion of the drive shaft.
（作用）
電動機が回転すると、この回転子軸にねし結合している
駆動軸が、回転子軸の回転方向に応じて直線往復運動を
する。そこで、この駆動軸に連結されたサーボ軸も直線
柱’ａ ｉｉｌ！動する。。(Function) When the electric motor rotates, the drive shaft, which is threadably coupled to the rotor shaft, makes linear reciprocating motion in accordance with the rotational direction of the rotor shaft. Therefore, the servo shaft connected to this drive shaft is also a straight column 'a iil! move. .
（実施例）
以下、本発明の一実施例を図面を参照して説明する。図
において、操作電動機上は、固定子２と、この固定子２
に軸受３を介して回転自在に取付けられた回転子４とか
ら構成され、固定子２の固定子枠５の内側には固定子コ
イル６が取付けられている。また、回転子４の回転子軸
７は、中空としその内面にめねし８詮設け、外側に回転
子コイル９を取付けている。１
一方、サーボ軸１０には連結ポルｈｌ］を介してサーボ
駆動軸］２を連結して設け、このサーボ駆動軸１ｚには
おねじ１３を設もって上記した回転子軸７のめねし８に
ねし結合させる。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In the figure, on the operating motor, there is a stator 2, and this stator 2.
The rotor 4 is rotatably attached to the stator 2 via a bearing 3, and a stator coil 6 is attached inside a stator frame 5 of the stator 2. Further, the rotor shaft 7 of the rotor 4 is hollow, and has eight female holes on its inner surface, and has a rotor coil 9 attached on its outer side. 1 On the other hand, a servo drive shaft] 2 is connected to the servo shaft 10 via a connecting port hl, and a male thread 13 is provided on this servo drive shaft 1z to connect it to the female thread 8 of the rotor shaft 7. Combine.
なお、操作電動機１は、ベース（または枠体）１４に固
定される。Note that the operating motor 1 is fixed to a base (or frame) 14.
次に、」−記構酸の作用を説明する。操作電動機１に通
電して回転子軸７を回転させる。回転子軸７が回転する
と、この回転子軸７のめねし８におわし１３を介してね
し係合しているサーボ駆動軸１２が、回転子軸７の回転
方向に応じて軸方向に直線往復移動をする。そこで、こ
のサーボ駆動軸１２の直線移動により、サーボ軸１０も
直線移動する。Next, the action of structural acid will be explained. The operating motor 1 is energized to rotate the rotor shaft 7. When the rotor shaft 7 rotates, the servo drive shaft 12, which is threadedly engaged with the female ring 8 of the rotor shaft 7 via the screw 13, rotates in the axial direction according to the rotation direction of the rotor shaft 7. Move back and forth in a straight line. Therefore, as the servo drive shaft 12 moves linearly, the servo shaft 10 also moves linearly.
以」―の実施例によれば、次の効果が得られる。According to the embodiment described below, the following effects can be obtained.
（１）従来のような歯車を用いないため、機構が簡単に
なる。(1) The mechanism is simple because it does not use gears like in the past.
（２）機構が簡単なため、故障が少ない。(2) Because the mechanism is simple, there are fewer failures.
（３）歯車の１噛み合わせがないため、騒音が発生しな
い。(3) Since there is no single mesh of gears, no noise is generated.
Ｇ）機構が簡単なため、外形を小さくすることができる
。G) Since the mechanism is simple, the external size can be made small.
なお、」−記した実施例では、回転子１１１１１１７に
めねし８を設け、サーボ駆動軸］２におわし１３を設け
て両者をねし結合させたか、回転子軸７とサーボ駆動軸
］２のそれぞれに対向するねし溝を設け、この両ねじ溝
が形成する空間に鋼球を挿入したボールねし結合として
もよい。また、回転子軸７を、めねじを設けた円筒を回
転子コイルを取付けた外筒に着脱自在（ただし、廻り止
めを施す）に挿入した２重構造とし、めねじが長期使用
により摩耗したときには他のものと交換できるようにし
てもよい。その他、軸受３に必要に応じスラスト軸受を
組合わせるようにしてもよい。In addition, in the embodiment described in "-", the rotor 1111117 is provided with a female screw 8, and the servo drive shaft]2 is provided with a screw 13 to connect them together, or the rotor shaft 7 and the servo drive shaft]2 are screwed together. It is also possible to form a ball screw connection in which thread grooves are provided facing each other, and a steel ball is inserted into the space formed by both thread grooves. In addition, the rotor shaft 7 has a double structure in which a cylinder with a female thread is inserted removably (but is prevented from rotating) into an outer cylinder with a rotor coil attached, and the female thread is worn out due to long-term use. Sometimes it may be possible to exchange it for something else. In addition, a thrust bearing may be combined with the bearing 3 as required.
本発明は、以−１−のように構成されているから、電動
サーボ機構における回転運動を直線往復運動に変換する
機構部を、中間歯車を不要として簡素化すると共に小形
化し、保守点検の容易と被制御機器の安定した運転を確
保することができる。Since the present invention is configured as described below, the mechanism section that converts rotational motion into linear reciprocating motion in the electric servomechanism is simplified and miniaturized by eliminating the need for intermediate gears, and facilitates maintenance and inspection. It is possible to ensure stable operation of the controlled equipment.
図は本発明の一実施例を一部切断して示す正面図である
。
１ 操作電動機 ７・・回転子軸
８・めねじ １０・サーボ軸The figure is a partially cutaway front view of one embodiment of the present invention. 1 Operation motor 7. Rotor shaft 8. Female thread 10. Servo shaft
Claims (1)
記電動機の回転子軸を中空にし、この中空部分にサーボ
軸を駆動する駆動軸を貫通させると共にねじ結合し、前
記電動機の回転運動を前記駆動軸の直線運動に変換する
ようにしたことを特徴とする電動サーボ機構。In an electric servo mechanism driven by an electric motor, the rotor shaft of the electric motor is hollow, and a drive shaft that drives the servo shaft is passed through this hollow portion and is screwed to the rotor shaft. An electric servo mechanism characterized by converting motion into motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6194288A JPH01240247A (en) | 1988-03-17 | 1988-03-17 | Electric servo mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6194288A JPH01240247A (en) | 1988-03-17 | 1988-03-17 | Electric servo mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01240247A true JPH01240247A (en) | 1989-09-25 |
Family
ID=13185746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6194288A Pending JPH01240247A (en) | 1988-03-17 | 1988-03-17 | Electric servo mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01240247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01143334U (en) * | 1988-03-24 | 1989-10-02 |
-
1988
- 1988-03-17 JP JP6194288A patent/JPH01240247A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01143334U (en) * | 1988-03-24 | 1989-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR850000058B1 (en) | Industrial robot | |
| US5129273A (en) | Actuator | |
| US20080134812A1 (en) | Thrust Transfer Device | |
| US5193408A (en) | Actuator | |
| CN111654152A (en) | Single-drive double-shaft motor and mechanical arm | |
| JP2576839B2 (en) | Stroke adjusting device for reciprocating pump | |
| JP4489199B2 (en) | Linear actuator | |
| JPH01240247A (en) | Electric servo mechanism | |
| CN109681602A (en) | A kind of harmonic speed changer with linear motion function | |
| US4904131A (en) | Chuck head for automatic machine tools | |
| JPH0348054A (en) | Actuator | |
| US3930415A (en) | Motion converter | |
| JPH06249312A (en) | Linear motion mechanism | |
| JPS63136939A (en) | Mechatrocylinder | |
| CN113894834B (en) | Double-motor linkage structure for mechanical arm joint telescopic pitching | |
| JPH07123631A (en) | Electric actuator | |
| JPS6174936A (en) | Prime mover device | |
| US4852438A (en) | Generating head cutting tool | |
| JP2008000803A (en) | Press machine | |
| JPH0730683B2 (en) | Method for manufacturing rotor of rotary machine using double helical screw type screw | |
| JPH02298451A (en) | Compound movement actuator | |
| JPS5977162A (en) | Rotation decelerator for robot | |
| JPH06197492A (en) | Composite driving gear | |
| CN220822814U (en) | Electric cylinder | |
| JPS5919762A (en) | Motor-type linear actuator |