JPH049603Y2 - - Google Patents
Info
- Publication number
- JPH049603Y2 JPH049603Y2 JP2582784U JP2582784U JPH049603Y2 JP H049603 Y2 JPH049603 Y2 JP H049603Y2 JP 2582784 U JP2582784 U JP 2582784U JP 2582784 U JP2582784 U JP 2582784U JP H049603 Y2 JPH049603 Y2 JP H049603Y2
- Authority
- JP
- Japan
- Prior art keywords
- screw shaft
- motor
- operating
- stroke
- base frame
- 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
Links
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Mechanisms For Operating Contacts (AREA)
- Control Of Position Or Direction (AREA)
Description
【考案の詳細な説明】
本考案は電動シリンダのストローク規制装置の
改良に関する。[Detailed Description of the Invention] The present invention relates to an improvement of a stroke regulating device for an electric cylinder.
電動シリンダは、ダンパーの開閉、バルブ操作
又は直線作動機として重量物の押上げ、引張りな
どの直線的な操作機として使用される。即ち、こ
の電動シリンダは、正逆回転するモーターで駆動
ねじ軸を回転させ、この駆動ねじ軸に螺合させた
ナツト部材を介してピストンロツドを軸方向に直
線的に往復動させるものである。したがつて、そ
の操作上、必ず両終端位置にて作動ストロークを
規制する必要がある。 Electric cylinders are used as linear operating machines for opening and closing dampers, operating valves, or as linear operating machines for pushing up and pulling heavy objects. That is, in this electric cylinder, a drive screw shaft is rotated by a motor that rotates forward and backward, and a piston rod is linearly reciprocated in the axial direction via a nut member screwed onto the drive screw shaft. Therefore, in terms of operation, it is necessary to always regulate the operating stroke at both end positions.
従来、この種のストローク規制装置として、電
動シリンダの作動部材の動きをシリンダ外のリミ
ツトスイツチで検出したり、又は実公昭58−
55446号公報のようにカム機構にて行うものがあ
るが、前者はシリンダの外部にリミツトスイツチ
を取付けるため、外観上、さらには防水、防塵上
不具合であり、また後者は構成が複雑でコスト高
となると共に操作性に問題が残るものである。 Conventionally, as this type of stroke regulating device, the movement of the actuating member of an electric cylinder is detected by a limit switch outside the cylinder, or
There is a method using a cam mechanism as in Publication No. 55446, but the former has a limit switch mounted outside the cylinder, which causes defects in terms of appearance, waterproofing and dustproofing, and the latter has a complicated configuration and is expensive. However, there remain problems with operability.
本考案は上述した実情に鑑みなされたもので、
簡単な構成で、低コストにて確実なストローク規
制ができる電動シリンダのストローク規制装置を
提供することを目的とする。 This idea was created in view of the above-mentioned circumstances.
It is an object of the present invention to provide a stroke regulating device for an electric cylinder that has a simple configuration and can surely regulate stroke at low cost.
以下、本考案を図面に示す実施例にもとづいて
説明する。まず、第1図及び第2図に示す第1実
施例により説明すると、本考案装置は、ベースフ
レーム1上の正逆回転するモーター12、伝動歯
車10a,10b,10c,11及び駆動ねじ軸
5を介してこの駆動ねじ軸5に螺合させたナツト
7により摺動杆3を軸方向に往復動させるように
した電動シリンダにおいて、モーター12から駆
動ねじ軸5に至る伝動歯車のいずれか1つの歯車
軸5aに取付けられたスイツチ用作動ねじ軸13
と、この作動ねじ軸13に螺合され、当該作動ね
じ軸13の正逆回転によつて軸方向に往復動され
るストライカ15と、前記ベースフレーム1に固
設したスイツチ取付体18に取付けられてストロ
ーク両終端位置に配設され、前記ストライカ15
によつて作動されて前記モーター12を停止させ
る一対のリミツトスイツチ16,16′と、これ
ら各構成要素13,15,16,16′,18を
内部に収納すべく前記ベースフレーム1に取付け
られたカバーケース17とを具備して構成され
る。2は、ベースフレーム1に取付けられると共
に両サイドにトラニオン軸23,23′を固設し
たシリンダ外套であつて、前記ナツト7が周方向
に回動しないように規制している。駆動ねじ軸5
は、その外周に例えば右ねじを形成したもので、
ラジアル及びスラストを受ける軸受8によつて前
記ベースフレーム1に回転自在に支持されてい
る。駆動ねじ軸5に螺合されるナツト7は、この
ねじ軸5の正、逆回転によつて往復動する。ナツ
ト7には連結孔4付きの摺動杆3が取付けられ、
この摺動杆3は、シリンダ外套2の内側をガイド
としてナツト7と共に軸方向に往復動される。6
は、ストローク終端にあるストツパであつて、同
時に軸受8をベースフレーム1に固定している。
9は、軸受8を駆動ねじ軸5に締付け固定する固
定ねじである。11は駆動ねじ軸5の端部に取付
けられた歯車であり、この歯車11にはカバーケ
ース17の内側に突設するベースフレーム1のブ
ラケツト22に取付固定されたモーター12より
の正逆回転力が中間歯車10a,10b,10c
を介して減速伝達される。また、駆動ねじ軸5の
軸端部5aには止めねじ14によつて作動ねじ軸
13が取付固定され、この作動ねじ軸13はその
外周に例えば右ねじを形成したもので、駆動ねじ
軸5の正逆回転に伴つて正逆回転する。作動ねじ
軸13に螺合されるストライカ15は、このねじ
軸13の正、逆回転によつて往復動する。なお、
この場合、作動ねじ軸13のねじピツチと駆動ね
じ軸5のねじピツチは用途により使い分けでき
る。本実施例の場合は、作動ねじ軸13の方のね
じピツチを小さくしてストローク設定部分を小型
化している。これにより、ストローク規制のため
のリミツトスイツチ16,16′及びそれらの構
成部品を小型化でき、カバーケース17内に容易
に収納することができる。即ち、駆動ねじ軸5の
ねじピツチを4mmとし、作動ねじ軸13のねじピ
ツチを0.4mmとすると、同一ストロークのときス
イツチ構成部は1/10の大きさでよい。スイツチ
取付体18は、ベースフレーム1上のブラケツト
22に取付固定されている。スイツチ取付体18
には、作動ねじ軸13に沿つて長孔20,20′
が設けられ、これら長孔20,20′には、リミ
ツトスイツチ16,16′が作動ねじ軸13に沿
つて移動調節可能に取付けられ、これによつてリ
ミツトスイツチ16,16′のカムローラ19,
19′とストライカ15とが接触する作動位置を
設定できるようにしてある。 Hereinafter, the present invention will be explained based on embodiments shown in the drawings. First, the first embodiment shown in FIGS. 1 and 2 will be explained. The device of the present invention includes a motor 12 on a base frame 1 that rotates forward and backward, transmission gears 10a, 10b, 10c, 11, and a drive screw shaft 5. In an electric cylinder in which the sliding rod 3 is reciprocated in the axial direction by a nut 7 screwed onto the drive screw shaft 5 via the Switch operating screw shaft 13 attached to gear shaft 5a
A striker 15 is screwed onto the operating screw shaft 13 and reciprocated in the axial direction by forward and reverse rotation of the operating screw shaft 13, and a striker 15 is attached to the switch mounting body 18 fixed to the base frame 1. The striker 15 is arranged at both end positions of the stroke.
a pair of limit switches 16, 16' that are operated by the motor to stop the motor 12, and a cover attached to the base frame 1 to house these components 13, 15, 16, 16', 18 inside. A case 17 is provided. Reference numeral 2 denotes a cylinder jacket which is attached to the base frame 1 and has trunnion shafts 23, 23' fixed to both sides thereof, and restricts the nut 7 from rotating in the circumferential direction. Drive screw shaft 5
For example, a right-handed thread is formed on the outer periphery.
It is rotatably supported by the base frame 1 by bearings 8 that receive radial and thrust thrust. A nut 7 screwed onto the drive screw shaft 5 reciprocates as the screw shaft 5 rotates forward and backward. A sliding rod 3 with a connecting hole 4 is attached to the nut 7,
This sliding rod 3 is reciprocated in the axial direction together with the nut 7 using the inside of the cylinder jacket 2 as a guide. 6
is a stopper located at the end of the stroke, and also fixes the bearing 8 to the base frame 1.
9 is a fixing screw that tightens and fixes the bearing 8 to the drive screw shaft 5. Reference numeral 11 denotes a gear attached to the end of the drive screw shaft 5, and this gear 11 receives forward and reverse rotational force from a motor 12 fixedly attached to a bracket 22 of the base frame 1 protruding inside the cover case 17. are intermediate gears 10a, 10b, 10c
The deceleration is transmitted via. Further, an operating screw shaft 13 is attached and fixed to the shaft end 5a of the drive screw shaft 5 by a set screw 14, and the operating screw shaft 13 has, for example, a right-handed thread formed on its outer periphery. It rotates forward and backward as it rotates forward and backward. The striker 15 screwed onto the operating screw shaft 13 is reciprocated by the forward and reverse rotation of the screw shaft 13. In addition,
In this case, the thread pitch of the operating screw shaft 13 and the thread pitch of the drive screw shaft 5 can be used depending on the purpose. In the case of this embodiment, the thread pitch of the actuating screw shaft 13 is made smaller to reduce the size of the stroke setting portion. As a result, the limit switches 16, 16' for stroke regulation and their constituent parts can be downsized and easily housed in the cover case 17. That is, if the thread pitch of the driving screw shaft 5 is 4 mm and the thread pitch of the operating screw shaft 13 is 0.4 mm, the switch component only needs to be 1/10 the size for the same stroke. The switch mounting body 18 is fixedly attached to a bracket 22 on the base frame 1. Switch mounting body 18
There are long holes 20, 20' along the operating screw shaft 13.
are provided in the elongated holes 20, 20', and limit switches 16, 16' are mounted so as to be movable and adjustable along the operating screw shaft 13, whereby the cam rollers 19, 19 of the limit switches 16, 16' are adjusted.
The operating position where the striker 19' and the striker 15 come into contact can be set.
即ち、リミツトスイツチ16,16′間の距離
及びその位置を調節セツトすることにより、リミ
ツトスイツチ16,16′を作動させてモーター
12を停止させるストローク両終端位置が設定で
きるのである。また、スイツチ取付板18には、
作動ねじ軸13に沿つて長孔20″が設けられ、
この長孔20″にはストライカ15に突設した係
合突起21を係合させて、ストライカ15が作動
ねじ軸13と共回りするのを防いでいる。なお、
カバーケース17は、ベースフレーム1に取付ね
じ24によつて取外し可能に取付られる。 That is, by adjusting and setting the distance between the limit switches 16, 16' and their positions, the stroke end positions at which the limit switches 16, 16' are operated and the motor 12 is stopped can be set. Moreover, on the switch mounting plate 18,
A long hole 20'' is provided along the operating screw shaft 13,
An engagement protrusion 21 protruding from the striker 15 is engaged with this elongated hole 20'' to prevent the striker 15 from rotating together with the operating screw shaft 13.
The cover case 17 is removably attached to the base frame 1 with attachment screws 24.
上記のように構成された本考案装置の作動を説
明する。モーター12が正回転(モーター軸端よ
り見て時計方向)すると、中間歯車10a,10
b,10cを介して歯車11が回転され、駆動ね
じ軸5がモーター12と同じ方向に減速回転さ
れ、駆動ねじ軸5に螺合するナツト7により摺動
杆3がシリンダ外套2に案内させて押出し動作さ
れる。このとき、駆動ねじ軸5の回転に伴つて作
動ねじ軸13がそれと同じ方向に回転し、この作
動ねじ軸13に螺合するストライカ15が歯車1
1の方向に移動して、ストライカ15がリミツト
スイツチ16のカムローラ19を作動させ、モー
ター12を停止させることにより、摺動杆3はス
トローク押出し方向の所定終端位置に停止され
る。また、モーター12が逆回転(モーター軸端
より見て反時計方向)に回転すると、全ての動き
は上記とは逆になつて摺動杆3は引戻し動作され
る。この場合、ストライカ15も上記とは逆方向
に移動し、ストライカ15がリミツトスイツチ1
6′のカムローラ19′を作動させると、ナツト7
がストツパ6に到着する前にモーター12が停止
され、摺動杆3がストローク引戻し方向の所定終
端位置に停止される。 The operation of the device of the present invention configured as described above will be explained. When the motor 12 rotates forward (clockwise when viewed from the end of the motor shaft), the intermediate gears 10a, 10
b, 10c, the gear 11 is rotated, the drive screw shaft 5 is rotated at a reduced speed in the same direction as the motor 12, and the sliding rod 3 is guided by the cylinder jacket 2 by the nut 7 screwed onto the drive screw shaft 5. An extrusion operation is performed. At this time, as the driving screw shaft 5 rotates, the operating screw shaft 13 rotates in the same direction, and the striker 15 screwed onto the operating screw shaft 13 moves the gear 1.
1, the striker 15 operates the cam roller 19 of the limit switch 16 and stops the motor 12, whereby the sliding rod 3 is stopped at a predetermined end position in the stroke extrusion direction. Furthermore, when the motor 12 rotates in the opposite direction (counterclockwise when viewed from the end of the motor shaft), all movements are reversed and the sliding rod 3 is pulled back. In this case, the striker 15 also moves in the opposite direction to the above, and the striker 15 switches the limit switch 1.
When the cam roller 19' of 6' is operated, the nut 7
The motor 12 is stopped before the stroke reaches the stopper 6, and the sliding rod 3 is stopped at a predetermined end position in the stroke retraction direction.
第3図は本考案の第2実施例であつて、モータ
ー12をカバーケース17の外側のベースフレー
ム1上に設け、中間歯車10cの軸10c′に作動
ねじ軸13を取付けたものであり、その他の構成
は上記第1実施例と同様である。 FIG. 3 shows a second embodiment of the present invention, in which a motor 12 is provided on the base frame 1 outside the cover case 17, and an operating screw shaft 13 is attached to the shaft 10c' of the intermediate gear 10c. The other configurations are the same as those of the first embodiment.
この第2実施例は、設計上、モーター12の設
置場所の問題、駆動ねじ軸5が軸方向に動いたり
する場合など、中間歯車に作動ねじ軸13を取付
けた方が都合のよい場合等に採用され、モーター
12から駆動ねじ軸5に至る伝動歯車のいずれか
1つの歯車軸に作動ねじ軸13を取付ければよ
い。 This second embodiment is suitable for cases where it is more convenient to attach the actuating screw shaft 13 to the intermediate gear, such as when there is a problem with the installation location of the motor 12 due to the design, or when the drive screw shaft 5 moves in the axial direction. The operating screw shaft 13 may be attached to any one of the gear shafts of the transmission gears extending from the motor 12 to the drive screw shaft 5.
上述したように本考案は、作動ねじ軸13、ス
トライカ15、リミツトスイツチ16,16′及
びスイツチ取付板18などがベースフレーム1上
に取付けられ、しかも、それら各構成要素がベー
スフレーム1に取付けられたカバーケース17内
に収納される構成にしたので、極めて簡単な構成
でコンパクト化でき、低コストにできると共に、
カバーケース17によつて防塵、防滴が完全にで
きる。 As described above, in the present invention, the operating screw shaft 13, the striker 15, the limit switches 16, 16', the switch mounting plate 18, etc. are mounted on the base frame 1, and each of these components is also mounted on the base frame 1. Since it is configured to be stored inside the cover case 17, it can be made compact with an extremely simple configuration, and it can be made at low cost.
The cover case 17 makes it completely dustproof and dripproof.
また、リミツトスイツチ16,16′は、スト
ロークの方向に移動操作すればよく、ストローク
調節がやりやすい。 Further, the limit switches 16, 16' can be moved in the direction of the stroke, making it easy to adjust the stroke.
また本考案において、例えば作動ストロークが
長い機種の場合などは、駆動ねじ軸5のねじピツ
チに対し作動ねじ軸13のねじピツチを小さくし
ておけば、カバーケース17内に収納されるスペ
ースを小さくでき、極めて合理的にコストダウン
できるが、これとは逆に作動ストロークが短い場
合は、前記とは逆に駆動ねじ軸5のねじピツチに
対し作動ねじ軸13のねじピツチを大きくしてお
けば、微妙なストローク設定が可能である。 In addition, in the present invention, for example, in the case of a model with a long operating stroke, by making the thread pitch of the actuating screw shaft 13 smaller than that of the driving screw shaft 5, the space stored in the cover case 17 can be reduced. However, if the operating stroke is short, contrary to the above, the thread pitch of the operating screw shaft 13 can be made larger than that of the driving screw shaft 5. , delicate stroke settings are possible.
なお、上記各実施例におて、駆動ねじ軸5及び
作動ねじ軸13には夫々左ねじを形成したもので
も上記と同様に実施できると共に、一方のねじ軸
5を右ねじ(又は左ねじ)とし、他方のねじ軸1
3を左ねじ(又は右ねじ)とすることもできる。 In addition, in each of the above embodiments, the drive screw shaft 5 and the operating screw shaft 13 may each be formed with left-hand threads, and the same implementation as described above can be carried out, and one of the screw shafts 5 may be formed with a right-hand thread (or left-hand thread). and the other screw shaft 1
3 can also be left-handed (or right-handed).
第1図及び第2図は本考案の第1実施例を示
し、第1図は平断面図、第2図は同要部の正断面
図、第3図は本考案の第2実施例を示す平断面図
である。
1……ベースフレーム、5……駆動ねじ軸、1
3……作動ねじ軸、15……ストライカ、16,
16′……リミツトスイツチ、17……カバーケ
ース、18……スイツチ取付板。
1 and 2 show a first embodiment of the present invention, FIG. 1 is a plan sectional view, FIG. 2 is a front sectional view of the same essential parts, and FIG. 3 is a second embodiment of the present invention. FIG. 1...Base frame, 5...Drive screw shaft, 1
3... Operating screw shaft, 15... Striker, 16,
16'...Limit switch, 17...Cover case, 18...Switch mounting plate.
Claims (1)
伝動歯車及び駆動ねじ軸を介してこの駆動ねじ
軸に螺合させたナツトにより摺動杆を軸方向に
往復動させるようにした電動シリンダにおい
て、モーターから駆動ねじ軸に至る伝導歯車の
いずれか1つの歯車軸に取付けられたスイツチ
用作動ねじ軸と、この作動ねじ軸に螺合され、
当該作動ねじ軸の正逆回転によつて軸方向に往
復動されるストライカと、前記ベースフレーム
に固設したスイツチ取付体に取付けられてスト
ローク両終端位置に配設され、前記ストライカ
によつて作動されて前記モーターを停止させる
一対のリミツトスイツチと、これら各構成要素
を内部に収納すべく前記ベースフレームに取付
けられたカバーケースとを具備してなる電動シ
リンダのストローク規制装置。 (2) リミツトスイツチを、作動ねじ軸に沿つて移
動調節可能にした実用新案登録請求の範囲第1
項記載のストローク規制装置。 (3) 作動ねじ軸のねじピツチを、駆動ねじ軸のピ
ツチより小さいか又は大きくしてなる実用新案
登録請求の範囲第1項又は第2項記載のストロ
ーク規制装置。[Claims for utility model registration] (1) A motor that rotates forward and backward on the base frame;
In an electric cylinder in which a sliding rod is reciprocated in the axial direction by a nut screwed onto the drive screw shaft via a transmission gear and a drive screw shaft, any one of the transmission gears leading from the motor to the drive screw shaft. The operating screw shaft for the switch is attached to two gear shafts, and the operating screw shaft is screwed to the operating screw shaft.
a striker that is reciprocated in the axial direction by forward and reverse rotation of the operating screw shaft; and a switch mounting body that is fixed to the base frame and is disposed at both end positions of the stroke and is actuated by the striker. A stroke regulating device for an electric cylinder, comprising: a pair of limit switches for stopping the motor when the motor is stopped; and a cover case attached to the base frame to house these components. (2) Utility model registration claim No. 1 in which the limit switch is movable and adjustable along the operating screw axis.
Stroke regulating device as described in section. (3) The stroke regulating device according to claim 1 or 2, wherein the thread pitch of the operating screw shaft is smaller or larger than the pitch of the driving screw shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2582784U JPS60140109U (en) | 1984-02-27 | 1984-02-27 | Electric cylinder stroke regulating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2582784U JPS60140109U (en) | 1984-02-27 | 1984-02-27 | Electric cylinder stroke regulating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60140109U JPS60140109U (en) | 1985-09-17 |
JPH049603Y2 true JPH049603Y2 (en) | 1992-03-10 |
Family
ID=30521261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2582784U Granted JPS60140109U (en) | 1984-02-27 | 1984-02-27 | Electric cylinder stroke regulating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60140109U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2719779B2 (en) * | 1987-01-26 | 1998-02-25 | 日本電産株式会社 | Iterative drive |
JP2563048Y2 (en) * | 1990-03-07 | 1998-02-18 | 三菱電機株式会社 | Limit switch operation mechanism |
-
1984
- 1984-02-27 JP JP2582784U patent/JPS60140109U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60140109U (en) | 1985-09-17 |
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