JPH1084651A - Power operated cylinder - Google Patents
Power operated cylinderInfo
- Publication number
- JPH1084651A JPH1084651A JP25778596A JP25778596A JPH1084651A JP H1084651 A JPH1084651 A JP H1084651A JP 25778596 A JP25778596 A JP 25778596A JP 25778596 A JP25778596 A JP 25778596A JP H1084651 A JPH1084651 A JP H1084651A
- Authority
- JP
- Japan
- Prior art keywords
- ball screw
- motor
- electromagnetic clutch
- output rod
- cylinder
- 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
Landscapes
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，電動機の出力軸の
回転運動をいわゆるねじ機構により直線運動に変換する
ように構成したシリンダの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a cylinder configured to convert a rotational motion of an output shaft of a motor into a linear motion by a so-called screw mechanism.
【０００２】[0002]
【従来の技術】 従来の電動シリンダは，その内部に収
納されたボ−ルねじの基端に固着された連結軸によって
伝導部材と分離不能に直結されており，この伝導部材が
電動シリンダの外側に配設された駆動手段たるモ−タと
連結されて構成されていた。2. Description of the Related Art A conventional electric cylinder is directly and inseparably connected to a conductive member by a connecting shaft fixed to a base end of a ball screw housed inside the electric cylinder. In this case, the motor is connected to a motor serving as driving means disposed in the vehicle.
【０００３】[0003]
【発明が解決しようとする課題】しかし，このような構
成だとボ−ルねじを回転させる時の慣性モ−メントが非
常に大きいので電動シリンダをワ−クに加わる外力に従
って高速作動させたり低速作動させることができないと
いう問題があった。本発明は，上記問題を解決するため
になされたもので，通常の電動シリンダ作動に加えてワ
−クに加わる外力にしたがって高速或は低速に作動させ
ることができる電動シリンダを提供することを目的とす
る。However, with such a structure, the moment of inertia when rotating the ball screw is very large, so that the electric cylinder can be operated at high speed according to the external force applied to the work, or at low speed. There was a problem that it could not be activated. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric cylinder which can be operated at a high speed or a low speed in accordance with an external force applied to a work in addition to a normal operation of an electric cylinder. And
【０００４】[0004]
【課題を解決するための手段】上記の問題点を解決する
ために本発明における電動シリンダは，ボ−ルねじとモ
−タに連結された伝導部材との間に電磁クラッチを挿入
し，通常の運転時には前記電磁クラッチに通電して前記
ボ−ルねじと前記伝導部材とを強固に連結する。前記モ
−タを停止した状態で電動シリンダを動かす際には，前
記電磁クラッチへの通電を止めて分離し，前記ボ−ルね
じと前記モ−タとの連結を絶ち該ボ−ルねじの慣性モ−
メントを小さくする。これによって，モ−タの停止時で
あっても比較的小さな外力で前記出力ロッドを伸縮させ
ることができる。In order to solve the above-mentioned problems, an electric cylinder according to the present invention comprises an electromagnetic clutch inserted between a ball screw and a conductive member connected to a motor. During the operation, the electromagnetic clutch is energized to firmly connect the ball screw and the conductive member. When the electric cylinder is moved with the motor stopped, the energization to the electromagnetic clutch is stopped to separate the motor, the ball screw is disconnected from the motor and the ball screw is disconnected. Inertia mode
Make the statement smaller. Thus, the output rod can be expanded and contracted with a relatively small external force even when the motor is stopped.
【０００５】[0005]
【実施例】本発明の一実施例を図面に基づいて説明す
る。一部切欠き断面正面図である図１に示すように，円
筒状のシリンダケ−ス１の先端開口は蓋２によって閉鎖
されており，該シリンダケ−ス１の基端側外方にはモ−
タ３が配設されている。前記シリンダケ−ス１内には筒
状の出力ロッド４が前記蓋２を貫通して摺動可能に遊嵌
挿入されている。前記出力ロッド４の基端部には中央部
に貫通孔を穿設されたピストン５が前記シリンダ−ケ−
ス１内を摺動可能にして固着されている。An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1 which is a partially cutaway sectional front view, an opening at the distal end of a cylindrical cylinder case 1 is closed by a lid 2, and the cylinder case 1 has
3 is provided. A cylindrical output rod 4 is slidably inserted into the cylinder case 1 through the cover 2 so as to be slidable. At the base end of the output rod 4, a piston 5 having a through hole at the center is provided with the cylinder casing.
Is slidably fixed in the space 1.
【０００６】前記ピストン５の貫通孔に同芯してボ−ル
ナット６が固着されており，該ボ−ルナット６には前記
出力ロッド４内に遊嵌挿入されると共に基端に電磁クラ
ッチ７が固着されたボ−ルねじ８が螺合されている。A ball nut 6 is fixed concentrically to the through hole of the piston 5. The ball nut 6 is loosely inserted into the output rod 4 and has an electromagnetic clutch 7 at the base end. The fixed ball screw 8 is screwed.
【０００７】前記電磁クラッチ７の他端は連結軸９の先
端に接続されており，該連結軸９は伝導部材１０に連結
されこの伝導部材１０は前記モ−タ３とベルトを介して
連結されている。これによって前記モ−タ３が駆動する
とその回転が前記伝導部材１０を介して前記ボ−ルねじ
８に伝達される。The other end of the electromagnetic clutch 7 is connected to the tip of a connecting shaft 9 which is connected to a conductive member 10 which is connected to the motor 3 via a belt. ing. Thus, when the motor 3 is driven, its rotation is transmitted to the ball screw 8 via the transmission member 10.
【０００８】このように構成された電動シリンダを実際
に作動させるには以下の手順で行う。電動シリンダを通
常の用途で使用するときには，前記電磁クラッチ７に通
電し前記連結軸９と前記ボ−ルねじ８とを強固に連結す
る。この状態で前記モ−タ３を駆動すると該モ−タ３の
回転が前記伝導部材１０に伝わり，該伝導部材１０に直
結された前記連結軸９が回転するので前記電磁クラッチ
７を介して前記連結軸９と連結された前記ボ−ルねじ８
も回転することとなる。前記ボ−ルねじ８が回転するこ
とによって該ボ−ルねじ８に螺合された前記ボ−ルナッ
ト６，前記ピストン５及び前記出力ロッド４が図の左右
方向のいずれかに摺動することとなる。In order to actually operate the electric cylinder configured as described above, the following procedure is performed. When the electric cylinder is used for normal use, the electromagnetic clutch 7 is energized to firmly connect the connecting shaft 9 and the ball screw 8. When the motor 3 is driven in this state, the rotation of the motor 3 is transmitted to the conductive member 10 and the connecting shaft 9 directly connected to the conductive member 10 rotates. The ball screw 8 connected to the connecting shaft 9
Will also rotate. The rotation of the ball screw 8 causes the ball nut 6, the piston 5 and the output rod 4 screwed to the ball screw 8 to slide in either the left or right direction in the drawing. Become.
【０００９】上記の場合と異なり，出力ロッド４先端に
取り付けられるワ−クに加えられる外力に従って作動さ
せたいときには，前記電磁クラッチ７への通電を停止し
前記ボ−ルねじ８と前記連結軸９とを分離する。この状
態では前記ボ−ルねじ８は前記モ−タ３との連結が解除
されているので該ボ−ルねじ８を回転させる際の慣性モ
−メントが小さくなっている。即ち，前記ボ−ルねじ８
は独立して回転することが可能となっているのでその慣
性モ−メントは小さく，比較的小さな外力で回すことが
できるようになっており前記出力ロッド４に連結される
ワ−クに加わる外力に従って高速又は低速で前記出力ロ
ッド４を左右方向に摺動させることができる。Unlike the above case, when it is desired to operate according to an external force applied to the work attached to the tip of the output rod 4, the power supply to the electromagnetic clutch 7 is stopped and the ball screw 8 and the connecting shaft 9 are turned off. And separate. In this state, the connection between the ball screw 8 and the motor 3 is released, so that the moment of inertia when rotating the ball screw 8 is reduced. That is, the ball screw 8
Since it is possible to rotate independently, its moment of inertia is small, and it can be rotated with a relatively small external force. The external force applied to the work connected to the output rod 4 Accordingly, the output rod 4 can be slid in the left and right directions at high speed or low speed.
【００１０】[0010]
【発明の効果】本発明は上記の説明から明らかなよう
に，円筒状のシリンダケ−スと；該シリンダケ−スの先
端開口を閉鎖する蓋と；該シリンダケ−スの基端側外方
に配設されたモ−タと；該シリンダケ−ス内に遊嵌挿入
され該シリンダケ−スの前記蓋を貫通して摺動可能な円
筒状の出力ロッドと；中央部に貫通孔を穿設すると共に
該出力ロッドの基端部に固着されて前記シリンダケ−ス
内を摺動可能なピストンと；該ピストンにその貫通孔に
同芯して固着されたボ−ルナットと；該ボ−ルナットに
螺合して前記出力ロッド内に遊嵌挿入されたボ−ルねじ
と；前記モ−タに連結されると共に電磁クラッチを介し
て前記ボ−ルねじの基端と連結された伝導部材と；で構
成されているので，通常のシリンダ作動に加えて外力に
従って高速又は低速で作動させることも可能となる。As is apparent from the above description, the present invention provides a cylindrical cylinder case; a lid for closing the opening at the distal end of the cylinder case; A motor provided; a cylindrical output rod which is loosely inserted into the cylinder case and is slidable through the lid of the cylinder case; A piston fixed to the base end of the output rod and slidable in the cylinder case; a ball nut fixed to the piston concentrically with a through hole thereof; and screwed to the ball nut A ball screw loosely inserted into the output rod; and a conductive member connected to the motor and connected to a base end of the ball screw via an electromagnetic clutch. High or low speed according to external force in addition to normal cylinder operation It is possible to operate.
【図１】本発明における電動シリンダの要部縦断面図で
ある。FIG. 1 is a longitudinal sectional view of a main part of an electric cylinder according to the present invention.
３ モ−タ ７ 電磁クラッチ ８ ボ−ルねじ ９ 連結軸 １０ 伝導部材 3 Motor 7 Electromagnetic clutch 8 Ball screw 9 Connecting shaft 10 Conductive member
Claims (1)
ダケ−ス１の先端開口を閉鎖する蓋２と；該シリンダケ
−ス１の基端側外方に配設されたモ−タ３と；該シリン
ダケ−ス１内に遊嵌挿入され該シリンダケ−ス１の前記
蓋２を貫通して摺動可能な円筒状の出力ロッド４と；中
央部に貫通孔を穿設すると共に該出力ロッド４の基端部
に固着されて前記シリンダケ−ス１内を摺動可能なピス
トン５と；該ピストン５にその貫通孔に同芯して固着さ
れたボ−ルナット６と；該ボ−ルナット６に螺合して前
記出力ロッド４内に遊嵌挿入されたボ−ルねじ８と；前
記モ−タ３に連結されると共に電磁クラッチ７を介して
前記ボ−ルねじ８の基端と連結された伝導部材１０と；
から成る電動シリンダ1. A cylindrical cylinder case 1; a lid 2 for closing a front end opening of the cylinder case 1; and a motor 3 disposed outside a base end side of the cylinder case 1. A cylindrical output rod 4 which is loosely inserted into the cylinder case 1 and is slidable through the lid 2 of the cylinder case 1; A piston 5 fixed to a base end of the cylinder case 4 and slidable in the cylinder case 1; a ball nut 6 fixed to the piston 5 concentrically with a through hole thereof; A ball screw 8 which is screwed into the output rod 4 and inserted loosely into the output rod 4; connected to the motor 3 and connected to the base end of the ball screw 8 via the electromagnetic clutch 7; Conductive member 10;
Electric cylinder consisting of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25778596A JPH1084651A (en) | 1996-09-06 | 1996-09-06 | Power operated cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25778596A JPH1084651A (en) | 1996-09-06 | 1996-09-06 | Power operated cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1084651A true JPH1084651A (en) | 1998-03-31 |
Family
ID=17311079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25778596A Pending JPH1084651A (en) | 1996-09-06 | 1996-09-06 | Power operated cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1084651A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007089275A (en) * | 2005-09-21 | 2007-04-05 | Smc Corp | Electric cylinder |
| KR100841761B1 (en) * | 2001-12-24 | 2008-06-27 | 주식회사 포스코 | A Inside Diameter Measuring Equipment for Continuously Moving Coil |
| KR101382188B1 (en) * | 2014-02-10 | 2014-04-08 | 주식회사 가우스 | Micro electric cylinder |
| JP2014070698A (en) * | 2012-09-28 | 2014-04-21 | Iai Corp | Actuator |
| JP2014072909A (en) * | 2012-09-27 | 2014-04-21 | Jfe Steel Corp | Electric cylinder |
-
1996
- 1996-09-06 JP JP25778596A patent/JPH1084651A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100841761B1 (en) * | 2001-12-24 | 2008-06-27 | 주식회사 포스코 | A Inside Diameter Measuring Equipment for Continuously Moving Coil |
| JP2007089275A (en) * | 2005-09-21 | 2007-04-05 | Smc Corp | Electric cylinder |
| JP2014072909A (en) * | 2012-09-27 | 2014-04-21 | Jfe Steel Corp | Electric cylinder |
| JP2014070698A (en) * | 2012-09-28 | 2014-04-21 | Iai Corp | Actuator |
| KR101382188B1 (en) * | 2014-02-10 | 2014-04-08 | 주식회사 가우스 | Micro electric cylinder |
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