JPS62271610A - Action detecting mechanism for piston rod of rotary fluid pressure cylinder for chuck - Google Patents

Action detecting mechanism for piston rod of rotary fluid pressure cylinder for chuck

Info

Publication number
JPS62271610A
JPS62271610A JP11543086A JP11543086A JPS62271610A JP S62271610 A JPS62271610 A JP S62271610A JP 11543086 A JP11543086 A JP 11543086A JP 11543086 A JP11543086 A JP 11543086A JP S62271610 A JPS62271610 A JP S62271610A
Authority
JP
Japan
Prior art keywords
piston rod
sensor
chuck
fluid pressure
pressure 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.)
Granted
Application number
JP11543086A
Other languages
Japanese (ja)
Other versions
JPH08326B2 (en
Inventor
Kojiro Oota
康二郎 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kitagawa Iron Works Co Ltd
Original Assignee
Kitagawa Iron Works Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kitagawa Iron Works Co Ltd filed Critical Kitagawa Iron Works Co Ltd
Priority to JP61115430A priority Critical patent/JPH08326B2/en
Publication of JPS62271610A publication Critical patent/JPS62271610A/en
Publication of JPH08326B2 publication Critical patent/JPH08326B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Gripping On Spindles (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE:To permit a detecting mechanism to be applied being left as it is to a machine tool now in operation, by providing a detected structure made of metal and a fixed contactless analog sensor, which generates a change of power, to detect the movement of a piston rod in its stroke direction. CONSTITUTION:A detecting mechanism is constituted of a metal made truncated cone-shaped detected structure 2, mounted to the rear end side of a piston rod 1, and a contactless analog sensor 3 set to be opposed to said detected structure 2. The sensor 3 outputs power, generated in accordance with a distance between the point end of the sensor and the peripheral surface of the detected structure 2, to a control unit. If the piston rod 1 moves, the power of the sensor 3 changes, and from a value of this change a position change amount of the piston rod 1 in its stroke direction can be detected by an analog value. This mechanism can be applied to a machine tool in operation only by replacing the detected structure 2 and the sensor 3.

Description

【発明の詳細な説明】 3、発明の詳細な説明 (産業上の利用分野) 本発明は、チャック用回転流体圧シリンダのピストンロ
ッド作動検知、更に詳しくは、ピストンロッドの回転方
向位置及びストローク方向位置を検出する機構に関する
Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention is directed to detecting the piston rod operation of a rotary fluid pressure cylinder for a chuck, and more specifically to detecting the rotational position and stroke direction of the piston rod. It relates to a mechanism for detecting position.

(従来技術及びその問題点) 従来のこの種検知機構としては、実開昭57−1088
46号開示のものがある。即ち、ピストンロー、ドの後
端側に環状リブから成る被検体を取付け、ハウジングに
固定17た近接スイッチにより環状リブの近接を検知す
ることによりピストンロッドのストローク方向移動を検
知しようとするものである。
(Prior art and its problems) As a conventional detection mechanism of this kind, Utility Model Application No. 57-1088
There is one disclosed in No. 46. That is, a test object consisting of an annular rib is attached to the rear end side of the piston rod, and movement of the piston rod in the stroke direction is detected by detecting the proximity of the annular rib using a proximity switch fixed to the housing. be.

しかし乍ら、このように構成する検知機構では、被検体
の接近をON・OFF検知するのみであるから、昨今の
無人化対応チャックシステムに採用する場合には、加工
物把握確認・チャック爪交換位置確認等大々の位置確認
に必要な数だけ近接スイッチを設置する必要がある」二
に、加工物変更等による確認位置変更の都度近接スイッ
チの設置位置を変更することが必要となる等の欠点を有
している。
However, since the detection mechanism configured in this way only detects ON/OFF detection of the approach of the object to be inspected, when it is adopted in recent unmanned chuck systems, it is necessary to check the grip of the workpiece and replace the chuck jaws. It is necessary to install as many proximity switches as necessary for large-scale position confirmation such as position confirmation.''Secondly, it is necessary to change the installation position of the proximity switch each time the confirmation position changes due to changes in the workpiece, etc. It has its drawbacks.

この欠点を補うものとしては、特開昭 57−156108号開示のものがある。即ち、ピスト
ンロッドの後端に取付けた検出棒の移動を直線ポテンシ
ョメータによる電圧変化でアナログ検出し、この検出値
に基づいてピストンロッドのストローク方向移動をアナ
ログ制御しようとするものである。
To compensate for this drawback, there is a method disclosed in JP-A-57-156108. That is, the movement of a detection rod attached to the rear end of the piston rod is detected in an analog manner by a voltage change using a linear potentiometer, and the movement of the piston rod in the stroke direction is controlled in an analog manner based on this detected value.

しかし乍ら、この構成のものでは、成程前記構成の有す
る欠点は解消し得るものの、ピストンロッドの回転運動
要素を排除して直線運動要素のみを検出棒に伝達する為
の特別の機構をピストンロッドと検出林間に介在させる
ことが必要となり、構造的に複雑になると共に既存のチ
ャーIりにそのまま採用し難い欠点が生じてぐる。
However, with this configuration, although the drawbacks of the above configuration can be overcome, the piston rod is equipped with a special mechanism for eliminating the rotational motion element of the piston rod and transmitting only the linear motion element to the detection rod. It is necessary to interpose the rod and the detection zone, which makes the structure complex and has the disadvantage that it is difficult to use it as is in existing charcoal systems.

更に、上記従来技術はいずれもピストンロッドのストロ
ーク方向移動を検知するのみであるから、その回転方向
位置検出の為には別個独立の検知機構を取付けなければ
ならないものである。
Furthermore, since all of the above conventional techniques only detect the movement of the piston rod in the stroke direction, a separate and independent detection mechanism must be installed in order to detect the position in the rotational direction.

(発明の目的) 本発明は、上記の如き事情に鑑み、簡単な構造で往つ現
在稼動中のチャックにそのまま採用し得ると共に、ピス
トンロッドのストローク方向移動をアナログ的に検知出
来るチャック用回転流体圧シリンダのピストンロッド作
動検知機構を提供すること、をその目的とする。
(Object of the Invention) In view of the above-mentioned circumstances, the present invention has a rotating fluid for a chuck that has a simple structure, can be used as is in currently operating chucks, and can detect movement in the stroke direction of a piston rod in an analog manner. The object of the present invention is to provide a piston rod operation detection mechanism for a pressure cylinder.

(発明の構成) 上記目的達成のム1本発明に係る検知機構は、ピストン
ロッドと同心設置され且つピストンロッドと同期移動す
ると共に、ピストンストローク方向に一定の比率で外周
半径が増大又は減少する金属製被検体と、該被検体の軸
心に対して直交する位置に対向設置され仕つ該被検体外
周面迄の距離に応じた電力変化を生じる固定無接点アナ
ログセンサとから構成されている。
(Structure of the Invention) To achieve the above object, the detection mechanism according to the present invention is made of a metal that is installed concentrically with the piston rod, moves in synchronization with the piston rod, and has an outer radius that increases or decreases at a constant rate in the piston stroke direction. A fixed non-contact analog sensor that generates a power change according to the distance to the outer circumferential surface of the test object, which is installed oppositely at a position orthogonal to the axis of the test object.

而して、このように構成することにより、ピストンロッ
ドのストローク方向移動位置を金属製被検体の外周面傾
斜により生ずるセンサの電力変化で検知するものである
With this configuration, the movement position of the piston rod in the stroke direction is detected by a change in the power of the sensor caused by the inclination of the outer circumferential surface of the metal object.

(発明の実施例) 第1及2図示検知機構は、ピストンロッドlの後端側に
取付けられた金属製円錐台状被検体2と、これに対向設
置された無接点アナログセンサ3とから構成されている
(Embodiment of the Invention) The first and second illustrated detection mechanisms are composed of a metal truncated cone-shaped object 2 attached to the rear end side of the piston rod l, and a non-contact analog sensor 3 installed opposite thereto. has been done.

ピストンロッドlは、スリーブ4aを後側に形成した回
転シリンダ4内に位置するピストン6を有しており1回
転シリンダ4の回転に伴って同期回転すると共に、流路
4b。
The piston rod 1 has a piston 6 located in a rotating cylinder 4 with a sleeve 4a formed on the rear side, and rotates synchronously with the rotation of the cylinder 4 for one rotation, and also rotates in synchronization with the rotation of the cylinder 4.

4Cを介して回転シリンダ4内に流出入される加圧流体
により、ガイドロッド5に沿ってストローク方向に相対
往復動するようになっている。
The pressurized fluid flowing in and out of the rotary cylinder 4 via 4C causes relative reciprocation in the stroke direction along the guide rod 5.

被検体2は、ピストンロッドlに同心状に固定されると
共に、その外周面に所定間隔で4つの溝部2a−・・が
形成されている。この溝flA2&・・・は、図示しな
いチャック本体に支承されるチャック爪の数及び設置間
隔に一致するよう形成されるものであり、又、いずれも
、ピストンロッド!の軸方向に一定深さで形成されると
共に、その最大内径Xが最大外11yよりも小さい径と
なっている。又、被検体2のストローク方向長さ2は、
ピストン6の回転シリンダ4内最大往復動範囲、即ちピ
ストンロッド1の最大ストローク長さと同じ又はそれよ
り若干長いものとなっている。
The subject 2 is fixed concentrically to the piston rod 1, and has four grooves 2a formed at predetermined intervals on its outer peripheral surface. These grooves flA2&... are formed to match the number and installation interval of chuck claws supported on the chuck body (not shown), and both of them are formed to match the number and installation interval of chuck claws supported on the chuck body (not shown). It is formed to have a constant depth in the axial direction, and its maximum inner diameter X is smaller than its maximum outer diameter 11y. Moreover, the length 2 of the subject 2 in the stroke direction is
The maximum reciprocating range of the piston 6 within the rotating cylinder 4 is the same as or slightly longer than the maximum stroke length of the piston rod 1.

無接点アナログセンサ3は、その先端と金属製被検体2
外周面の距離に応じた電力を図示しない制御装置に連続
的に出力するものであり、外周に刻設した螺子状部3a
により。
The non-contact analog sensor 3 has its tip and the metal object 2
It continuously outputs electric power according to the distance of the outer circumferential surface to a control device (not shown).
By.

ドレン溜め9とハウジング10間に設置された検知機構
部採譜カバー7に貫通螺合されると共に、ナツト8で位
置決め固定されている。
It is screwed through the detection mechanism section music recording cover 7 installed between the drain reservoir 9 and the housing 10, and is positioned and fixed with a nut 8.

上記実施例構成のものでは、ピストンロッド1が回転乃
至ストローク移動を行うと、センサ3の電力が第3図示
の如く変化する。即ち、第1及2図示の如く、センサ3
直下に溝部2aが位置する状態でピストンロッドlが第
1図左方向に移動すると、溝m2&の内径減少(センサ
3との距離拡大)に対応してセンサ3の出力は第3図■
の如<C−+Dに一定の傾斜率で増大する。従って、電
力変化値からピストンロッド1のストローク方向位置変
化醗をアナログ検出可能である。又、ピストンロッドl
が所定量回転し、溝部2aがセンサ3直下位i1がら外
れた状態で同様に第1図左方向に移動すると、被検体2
の外径減少に対応してセンサ3の出力は第3固めの如く
A4Bに一定の傾斜率で増大する。従って、上記■と同
様に電力変化値からピストンロッドlのストローク方向
位置変化量をアナログ検出可能である。而して、溝部2
aの最大内%xが最小外径Vよりも小さいことから、−
上記■の最大値Bは上記■の最小値Cより68分小さく
なっている。従って、検出電力の絶対値からセンサ3の
直下に溝部2aが位置しているか否かをデジタル検知可
能である。
In the configuration of the above embodiment, when the piston rod 1 performs rotation or stroke movement, the electric power of the sensor 3 changes as shown in the third diagram. That is, as shown in the first and second figures, the sensor 3
When the piston rod l moves to the left in Fig. 1 with the groove 2a located directly below it, the output of the sensor 3 will change as shown in Fig.
It increases at a constant slope rate as <C-+D. Therefore, the change in the position of the piston rod 1 in the stroke direction can be detected in analog form from the power change value. Also, the piston rod
rotates by a predetermined amount, and similarly moves to the left in FIG.
Corresponding to the decrease in the outer diameter of the sensor 3, the output of the sensor 3 increases at a constant slope rate to A4B as in the third case. Therefore, as in the case (2) above, the amount of change in the position of the piston rod 1 in the stroke direction can be detected in analog form from the power change value. Therefore, the groove part 2
Since the maximum inner % x of a is smaller than the minimum outer diameter V, −
The maximum value B of the above ■ is 68 minutes smaller than the minimum value C of the above ■. Therefore, it is possible to digitally detect whether the groove portion 2a is located directly below the sensor 3 from the absolute value of the detected power.

尚、上記■に於けるCD間の電位差及び傾斜率と上記■
に於けるAB間の電位差及び傾斜率は共に同一であり、
例えば検出電力値がEの場合、ピストンロッドlは、セ
ンサ3直下に満1112aが位置しない回転方向位置で
且つストローク方向位置がXの状態にあることを検知し
ており、一方、検出電力値が E+ (e+Δe)の場合、ピストンロッド1は、セン
サ3直下に溝部2aが位置する回転方向位置で且つスト
ローク方向位置がXの状態にあることを検知しているも
のである。
In addition, the potential difference and slope rate between CDs in the above ■ and the above ■
The potential difference and slope rate between AB at are both the same,
For example, when the detected power value is E, it is detected that the piston rod l is at a position in the rotational direction where 1112a is not located directly below the sensor 3 and the position in the stroke direction is in the state of X, and on the other hand, the detected power value is In the case of E+ (e+Δe), it is detected that the piston rod 1 is at a position in the rotation direction where the groove portion 2a is located directly below the sensor 3 and a position in the stroke direction is in the state of X.

又、(e+Δe)はピストンロッド1の最大ストローク
長さと溝部2aの深さによって定まる一定値である。
Further, (e+Δe) is a constant value determined by the maximum stroke length of the piston rod 1 and the depth of the groove portion 2a.

Ws4及5図示検知機構は、金属製被検体の他の実施例
を示すものである。
The detection mechanisms shown in Ws4 and 5 show other embodiments of metal objects.

本実施例に示す被検体102は、周方向及び軸方向に夫
々一定の比率で半径が増大又は減少する渦巻状柱体から
構成されており、渦巻基点121が図示しないチャック
本体の回転基点に対応するようになっている。又、被検
体102のストローク方向長さ2は、ピストン6の回転
シリンダ4内最大往復動範囲。
The object 102 shown in this embodiment is composed of a spiral column whose radius increases or decreases at a constant rate in the circumferential direction and the axial direction, and the spiral base point 121 corresponds to the rotation base point of the chuck body (not shown). It is supposed to be done. Further, the length 2 of the object 102 in the stroke direction is the maximum reciprocating range of the piston 6 within the rotating cylinder 4.

即ちピストンロッドlの最大ストローク長さと同じ又は
それより若干長いものとなっている。
That is, it is the same as or slightly longer than the maximum stroke length of the piston rod 1.

上記実施例構成のものでは、ピストンロッドlが回転乃
至ストローク移動を行うと、センサ3の電力が第6乃至
7図示の如く変化する。即ち、第4及5図示の如く、セ
ンサ3直下に渦巻基点121が位置する状態でピストン
ロッドlが第4図左方向に移動すると、被検体102の
外径減少(センサ3との距離拡大)に対応してセンサ3
の出力は#I6図の如く一定の傾斜率で増大する。従っ
て、センサ3の電力変化量からピストンロッドlのスト
ローク方向移動量をアナログ検出可能である。又、ピス
トンロッドlが回転移動する場合も、同様に被検体10
2の外径減少に対応してセンサ3の出力が第7図の如く
一定の傾斜率で増大する。従って、電力変化量からピス
トンロッド1の回転量をアナログ検出可能である。
In the configuration of the above embodiment, when the piston rod l performs rotation or stroke movement, the electric power of the sensor 3 changes as shown in the sixth and seventh figures. That is, as shown in FIGS. 4 and 5, when the piston rod 1 moves to the left in FIG. 4 with the spiral base point 121 located directly below the sensor 3, the outer diameter of the object 102 decreases (the distance from the sensor 3 increases). Sensor 3 corresponding to
The output increases at a constant slope rate as shown in diagram #I6. Therefore, the amount of movement of the piston rod 1 in the stroke direction can be detected in analog form from the amount of power change of the sensor 3. Also, when the piston rod l rotates, the subject 10
Corresponding to the decrease in the outer diameter of sensor 2, the output of sensor 3 increases at a constant slope rate as shown in FIG. Therefore, the amount of rotation of the piston rod 1 can be detected in analog form from the amount of power change.

尚、ピストンロッドlの1回転毎に電力が渦巻基点の電
力Eに急減するので、この変化をパルス信号に変換する
ことで回転数の検出も可能である。
Incidentally, since the electric power rapidly decreases to the electric power E at the spiral base point every time the piston rod I rotates, it is also possible to detect the rotational speed by converting this change into a pulse signal.

第8図は、本発明に係る検知機構の別の実施例を示すも
のである。
FIG. 8 shows another embodiment of the detection mechanism according to the present invention.

本実施例に示す被検体202は、ハウジング10の外周
に相対摺回動可能に配置され、周方向に所定間隔で設置
された複数の連結棒203・・・を介してピストン6に
支承連結され、一方、無接点アナログセンサ3は、ハウ
ジングlOに取付けられた支持アーム31に固定支持さ
れており、ピストン6の回転及びストローク移動に伴っ
て摺回動する被検体202の外周迄の距離変化をセンサ
3でアナログ検知することにより、ピストンロッドlの
ストローク移動量を検出するものである。
The subject 202 shown in this embodiment is arranged so as to be relatively slidable around the outer periphery of the housing 10, and is supported and connected to the piston 6 via a plurality of connecting rods 203 installed at predetermined intervals in the circumferential direction. On the other hand, the non-contact analog sensor 3 is fixedly supported by a support arm 31 attached to the housing IO, and detects changes in the distance to the outer periphery of the subject 202 that slides and rotates with the rotation and stroke movement of the piston 6. By performing analog detection with the sensor 3, the stroke movement amount of the piston rod 1 is detected.

而して1本実施例に於ける被検体202は、ピストンス
トローク方向に一定の比率で側縁11202aの外周半
径が減少するフランジ状部材で構成されているが、第!
及2図示実施例と同様、側縁部202aに一以上の清を
形成することにより、ピストンロッド!の回転位置検知
が可能となる。又、第4及5図示実施例の如く、側縁部
202aの周方向にも一定の比率で外周半径を減少させ
る構成とすることにより、ピストンロッドlの回転量を
アナログ検知することも可能である。
The object 202 in this embodiment is composed of a flange-like member in which the outer radius of the side edge 11202a decreases at a constant rate in the piston stroke direction.
Similarly to the illustrated embodiment, by forming one or more grooves on the side edge portion 202a, the piston rod! The rotational position can be detected. Further, as in the fourth and fifth illustrated embodiments, by configuring the outer circumferential radius of the side edge portion 202a to be reduced at a constant ratio in the circumferential direction, it is also possible to detect the amount of rotation of the piston rod l in an analog manner. be.

(発明の効果) L記の如き本発明に係る検知機構を用いてチャックの作
動制御を行う場合、ストローク方向移動閂のアナログ検
出値に基づいて、加工物把握確認・チャック爪交換の径
方向位置確認等必要な位置へのストローク移動制御。
(Effect of the invention) When controlling the operation of the chuck using the detection mechanism according to the present invention as described in L, the radial position for confirming workpiece grasping and chuck jaw replacement is determined based on the analog detection value of the bar moving in the stroke direction. Stroke movement control to necessary positions for confirmation etc.

又加工物変更等による確認位置変更を自在に行うことが
出来ると共に、チャック爪交換の為の回転移動制御も同
時に可能となる。従って、無人化対応チャックシステム
の要請に応え得る機構となると共に、ピストンロッドに
取付ける被検体を取替え、一方、センサをリミットスイ
ッチ乃至近接センサ等から無接点アナログセンサに取替
える丈で済む為、現在稼動中の二[作機にそのまま採用
出来るものである。
In addition, it is possible to freely change the confirmation position due to changes in workpieces, etc., and it is also possible to control rotational movement for changing chuck jaws at the same time. Therefore, it is a mechanism that can meet the demands of an unmanned chuck system, and it is only necessary to replace the test object attached to the piston rod and replace the sensor from a limit switch or proximity sensor to a non-contact analog sensor, so it is currently in operation. Two of them can be used directly in the machine.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に係る検知機構の実施例を示す断面構成
図、第2図は第1図の■−■線矢視断面図、第3図はセ
ンサの電力変化図、第4図は金属製被検体の他の実施例
を示す断面構成図、第5図は第4図のv−v線矢視断面
図、第6及7図はセンナの電力変化図、第8図は本発明
に係る検知機構の別の実施例を示す断面構成図である。 l・・・ピストンロッド 2・102・202−・・金属製被検体2a・・・溝部 3・・・無接点アナログセンサ X・・・最大内径   y・・・最小外径図面の浄書(
内容に変更なし) 第1図 第2図 第6図 第7図 *tyt圧 手続補正音(方式) 昭和81年8月8日
FIG. 1 is a cross-sectional configuration diagram showing an embodiment of the detection mechanism according to the present invention, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, FIG. 3 is a power change diagram of the sensor, and FIG. A cross-sectional configuration diagram showing another example of a metal test object, FIG. 5 is a cross-sectional view taken along the line v-v in FIG. 4, FIGS. 6 and 7 are power change diagrams of Senna, and FIG. FIG. 3 is a cross-sectional configuration diagram showing another embodiment of the detection mechanism according to the present invention. l... Piston rod 2, 102, 202 - Metal object 2a... Groove 3... Non-contact analog sensor X... Maximum inner diameter y... Minimum outer diameter drawing (
No change in content) Figure 1 Figure 2 Figure 6 Figure 7 *tyt pressure procedure correction sound (method) August 8, 1981

Claims (1)

【特許請求の範囲】 1)ピストンロッドと同心設置され1つピストンロッド
と同期移動すると共に、ピストンストローク方向に一定
の比率で外周半径が増大又は減少する金属製被検体と、
該被検体の軸心に対して直交する位置に対向設置され1
つ該被検体外周面迄の距離に応じた電力変化を生じる固
定無接点アナログセンサとから構成される、チャック用
回転流体圧シリンダのピストンロッド作動検知機構。 2)上記被検体の外周面に、最大外径より小さい最大内
径とした一以上の溝を一定深さで形成して成る特許請求
の範囲第1)項に記載のチャック用回転流体圧シリンダ
のピストンロッド作動検知機構。 3)上記被検体が、その周方向にも一定の比率で外周半
径が増大又は減少する特許請求の範囲第1)項に記載の
チャック用回転流体圧シリンダのピストンロッド作動検
知機構。
[Scope of Claims] 1) A metal object that is installed concentrically with the piston rod and moves synchronously with the piston rod, and whose outer radius increases or decreases at a constant ratio in the piston stroke direction;
1 installed opposite to each other at a position orthogonal to the axis of the subject;
A piston rod operation detection mechanism for a rotating fluid pressure cylinder for a chuck, comprising: a fixed non-contact analog sensor that generates a power change according to the distance to the outer peripheral surface of the object; 2) The rotary fluid pressure cylinder for a chuck according to claim 1, wherein one or more grooves having a maximum inner diameter smaller than the maximum outer diameter are formed at a constant depth on the outer circumferential surface of the subject. Piston rod operation detection mechanism. 3) The piston rod operation detection mechanism for a rotary fluid pressure cylinder for a chuck according to claim 1, wherein the object to be inspected has an outer circumferential radius that increases or decreases at a constant rate in the circumferential direction.
JP61115430A 1986-05-20 1986-05-20 Piston rod operation detection mechanism of rotating fluid pressure cylinder for check Expired - Fee Related JPH08326B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61115430A JPH08326B2 (en) 1986-05-20 1986-05-20 Piston rod operation detection mechanism of rotating fluid pressure cylinder for check

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61115430A JPH08326B2 (en) 1986-05-20 1986-05-20 Piston rod operation detection mechanism of rotating fluid pressure cylinder for check

Publications (2)

Publication Number Publication Date
JPS62271610A true JPS62271610A (en) 1987-11-25
JPH08326B2 JPH08326B2 (en) 1996-01-10

Family

ID=14662372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61115430A Expired - Fee Related JPH08326B2 (en) 1986-05-20 1986-05-20 Piston rod operation detection mechanism of rotating fluid pressure cylinder for check

Country Status (1)

Country Link
JP (1) JPH08326B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372105U (en) * 1989-11-16 1991-07-22
JP2001191227A (en) * 1999-11-16 2001-07-17 Etp Transmission Ab Mounting tool for hydromechanical chuck
JP2010162647A (en) * 2009-01-15 2010-07-29 Jtekt Corp Rotary shaft apparatus and tool holding condition determining method in rotary shaft apparatus
JP2020133749A (en) * 2019-02-19 2020-08-31 株式会社北川鉄工所 Rotary cylinder
WO2023144873A1 (en) * 2022-01-25 2023-08-03 株式会社Fuji Output device, and machine tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57156108A (en) * 1981-02-18 1982-09-27 Forkardt Paul Kg Method and device for determining working range of double-acting operating cylinder operating clamping device for machine tool
JPS60165803U (en) * 1984-04-12 1985-11-02 日本軽金属株式会社 Plunger position detection device in die casting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57156108A (en) * 1981-02-18 1982-09-27 Forkardt Paul Kg Method and device for determining working range of double-acting operating cylinder operating clamping device for machine tool
JPS60165803U (en) * 1984-04-12 1985-11-02 日本軽金属株式会社 Plunger position detection device in die casting machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372105U (en) * 1989-11-16 1991-07-22
JP2001191227A (en) * 1999-11-16 2001-07-17 Etp Transmission Ab Mounting tool for hydromechanical chuck
JP2010162647A (en) * 2009-01-15 2010-07-29 Jtekt Corp Rotary shaft apparatus and tool holding condition determining method in rotary shaft apparatus
JP2020133749A (en) * 2019-02-19 2020-08-31 株式会社北川鉄工所 Rotary cylinder
WO2023144873A1 (en) * 2022-01-25 2023-08-03 株式会社Fuji Output device, and machine tool

Also Published As

Publication number Publication date
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