JPH1164142A - Oil pressure detecting probe - Google Patents
Oil pressure detecting probeInfo
- Publication number
- JPH1164142A JPH1164142A JP9225878A JP22587897A JPH1164142A JP H1164142 A JPH1164142 A JP H1164142A JP 9225878 A JP9225878 A JP 9225878A JP 22587897 A JP22587897 A JP 22587897A JP H1164142 A JPH1164142 A JP H1164142A
- Authority
- JP
- Japan
- Prior art keywords
- probe
- detection block
- oil
- hole
- detection
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】自動車用自動変速機など油圧
機器の自動検査装置における油圧検出プローブ、詳しく
は、油圧計測後油圧垂れが生じないようにした油圧検出
プローブに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic pressure detection probe in an automatic inspection apparatus for hydraulic equipment such as an automatic transmission for an automobile, and more particularly to a hydraulic pressure detection probe for preventing a hydraulic pressure drop after measuring a hydraulic pressure.
【０００２】[0002]
【従来の技術】従来、油圧機器の自動検査装置における
油圧計測装置の構成を図３に示す。油圧検出プローブ３
１はエアシリンダ（自動押付機）３３のピストンロッド
３４に取着された検出ブロック３２に支持されており、
供試体Ａの試験時にエアシリンダ３３のピストンロッド
３４を前進させて検出プローブ３１の先端を供試体Ａの
油圧計測用油圧孔ａにプローブ３１を押圧し、供試体Ａ
の油圧を検出プローブ３１，ホース３５を介して圧力セ
ンサ室３６に取り入れ、圧力センサ３７で油圧を検出
し、アンプ３８等を介して圧力表示器３９に計測した油
圧を表示する。2. Description of the Related Art FIG. 3 shows a configuration of a hydraulic pressure measuring device in a conventional automatic inspection device for hydraulic equipment. Oil pressure detection probe 3
1 is supported by a detection block 32 attached to a piston rod 34 of an air cylinder (automatic pressing machine) 33,
During the test of the specimen A, the piston rod 34 of the air cylinder 33 is advanced, and the tip of the detection probe 31 is pressed against the hydraulic pressure measuring hole a of the specimen A, and the specimen A
Is introduced into the pressure sensor chamber 36 via the detection probe 31 and the hose 35, the oil pressure is detected by the pressure sensor 37, and the measured oil pressure is displayed on the pressure display 39 via the amplifier 38 and the like.
【０００３】油圧計測後、エアシリンダ３３のピストン
ロッド３４を後退させ、検出プローブ３１を供試体Ａか
ら引き離す。この時、油圧検出プローブ３１およびホー
ス３５内の油が垂れ落ちる。このため、ホース３４の途
中に切換弁４１を設けてホース中の油をバキューム装置
４２で吸い取ったり、逆止弁４３を設けて油圧検出プロ
ーブ側へ逆流するのを防止したりしている。以上自動制
御で行っている。After measuring the oil pressure, the piston rod 34 of the air cylinder 33 is retracted, and the detection probe 31 is separated from the specimen A. At this time, oil in the oil pressure detection probe 31 and the hose 35 drips. For this reason, a switching valve 41 is provided in the middle of the hose 34 to suck the oil in the hose by the vacuum device 42, and a check valve 43 is provided to prevent the oil from flowing back to the hydraulic pressure detection probe. The above is performed by the automatic control.
【０００４】なお、供試体Ａの油圧計測用孔ａは油圧計
測時のみ供試体Ａ内部と連通し、供試体Ａの油圧が流出
するようになっている。The oil pressure measurement hole a of the specimen A communicates with the inside of the specimen A only when the oil pressure is measured, so that the oil pressure of the specimen A flows out.
【０００５】[0005]
【発明が解決しようとする課題】ところで、上記バキュ
ーム装置を用いて油垂れを防止する場合、下記のような
問題点がある。 （１）ホースないし油圧検出プローブ内の油を完全に吸
い取ることは困難であり、油垂れを十分防止できない。
特に油圧検出プローブ数が多い場合は、バキューム量が
不足し、十分機能しない。 （２）バキュームの時間を２〜３秒入れるとその分圧力
検出のサイクルタイムが長くなり生産能力が低下する。 （３）バキューム装置、バキューム配管、油圧検出時と
バキューム時の切換バルブ等の費用がかかる。However, when using the above-mentioned vacuum device to prevent oil dripping, there are the following problems. (1) It is difficult to completely absorb the oil in the hose or the hydraulic pressure detection probe, and the dripping of the oil cannot be sufficiently prevented.
In particular, when the number of hydraulic pressure detection probes is large, the amount of vacuum is insufficient and does not function sufficiently. (2) If the vacuum time is set to 2 to 3 seconds, the cycle time of pressure detection becomes longer and the production capacity decreases. (3) The cost of a vacuum device, a vacuum pipe, a switching valve at the time of detecting oil pressure and at the time of vacuum, and the like are required.
【０００６】また、上記逆止弁を使用して油垂れ防止す
る場合、下記のような問題点がある。 （１）逆止弁の弁圧により初期の油の流れが少なくな
る。 （２）逆止弁の抵抗により正確な圧力計測ができない。 （３）ゴミ等が逆止弁につまり、メンテナンス性が悪
い。[0006] Further, when oil dripping is prevented by using the above-mentioned check valve, there are the following problems. (1) The initial oil flow is reduced by the valve pressure of the check valve. (2) The pressure cannot be accurately measured due to the resistance of the check valve. (3) Dust or the like is clogged in the check valve, and the maintenance property is poor.
【０００７】この発明は、上記の問題点に鑑みて成され
たものであり、その目的とするところは、油垂れが無
く、安価でメンテナンス性のよい油圧検出プローブを提
供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide an inexpensive and easy-to-maintain hydraulic pressure detection probe which is free of oil dripping.
【０００８】[0008]
【課題を解決するための手段】本発明は、供試体の油圧
計測用孔にプローブ先端を自動押し付けして供試体の油
圧を油圧検出センサに導くための油圧検出プローブにお
いて、油圧検出プローブは、自動押付機に取着される検
出ブロックと、この検出ブロック内に摺動可能に設けら
れたプローブと、検出ブロックをプローブ後端側に付勢
するばねとからなり、プローブは、後端が閉じ、開口し
た先端部がゴム等油圧シール部材で構成され、油圧検出
孔径が８ｍｍ以下で、側壁に外側に通ずる油流出孔を有
し、検出ブロックは、プローブが摺動する内側から外側
に通ずる油検出孔を有し、プローブの先端部が前記供試
体の孔に押し付けられ検出ブロックが前記ばねに抗して
所定距離前進すると、プローブの油流出孔と検出ブロッ
クの油圧検出孔が連通し、押し付けが解除されると、検
出ブロックがばねによりプローブ後端側に後退して前記
連通が遮断され、プローブ内の残留油は表面張力により
流出しないようにしたものである。According to the present invention, there is provided a hydraulic pressure detecting probe for automatically pressing the tip of a probe into a hydraulic pressure measuring hole of a specimen to guide the hydraulic pressure of the specimen to a hydraulic pressure detecting sensor. The probe consists of a detection block attached to the automatic pressing machine, a probe slidably provided in the detection block, and a spring for urging the detection block toward the rear end of the probe. The open end is formed of a hydraulic seal member such as rubber, the oil pressure detection hole diameter is 8 mm or less, the side wall has an oil outflow hole communicating with the outside, and the detection block has an oil passage from the inside where the probe slides to the outside. The probe has a detection hole, and when the tip of the probe is pressed against the hole of the specimen and the detection block advances a predetermined distance against the spring, the oil outflow hole of the probe and the oil pressure detection hole of the detection block are moved. Through, the pressing is released, the detection block the communicating retracted into the probe rear end side is cut off by the spring, the residual oil within the probe is obtained by so as not to flow out due to surface tension.
【０００９】[0009]
【発明の実施の形態】図１に、発明にかかる油圧検出プ
ローブの１例を示す。同図において、１０はプローブ、
２０は自動押付機に取り付けられたプローブ１０を支持
する検出ブロックである。プローブ１０は、内径φdが
８ｍｍ以下に構成され、金属製のプローブ本体１１の先
端部１１1近傍には鍔部１２が一体に形成され、本体側
壁には油流出孔１３が穿設されている。FIG. 1 shows an example of a hydraulic pressure detecting probe according to the present invention. In the figure, 10 is a probe,
Reference numeral 20 denotes a detection block that supports the probe 10 attached to the automatic pressing machine. Probe 10 has an inner diameter phi d is formed below 8 mm, the tip portion 11 1 near the metallic probe body 11 is flange portion 12 is formed integrally, the body sidewall is oil outflow hole 13 is bored I have.
【００１０】また、本体１１の先端部１１1には、供試
体Ａの油圧計測用孔ａと係合し油洩れなく供試体の油圧
をプローブ１０内に導くことのできるゴム製部材１９が
嵌着され、後端部１１2には、鍔状のストッパ部１５と
ねじ部１６及びＯリング８を有するストッパ部材１４が
螺合されプローブ１０の後端が閉ざされている。A rubber member 19 that engages with the oil pressure measurement hole a of the specimen A and can guide the oil pressure of the specimen into the probe 10 without oil leakage is fitted to the tip end 11 1 of the main body 11. It is deposited, the rear end 11 2, the rear end of the probe 10 the stopper member 14 is screwed with the flange-shaped stopper portion 15 and the threaded portion 16 and the O-ring 8 is closed.
【００１１】検出ブロック２０には孔２１が穿設されて
おり、この孔２１によりプローブ１０を摺動可能に支持
する。この孔２１にはプローブ１０との摺動面をシール
するＯリング２５，２６と、図２の状態でプローブ１０
の油流出孔１３と連通可能な環状の油圧回路２２と、こ
の油圧回路２２に連通するホース取着孔２３が設けられ
ている。A hole 21 is formed in the detection block 20, and the probe 10 is slidably supported by the hole 21. The holes 21 are provided with O-rings 25 and 26 for sealing the sliding surface with the probe 10 and the probe 10 in the state shown in FIG.
An annular hydraulic circuit 22 communicable with the oil outflow hole 13 and a hose mounting hole 23 communicating with the hydraulic circuit 22 are provided.
【００１２】また、検出ブロック２０の前面側とプロー
ブ１０の鍔部１２の間には検出ブロックをプローブのス
トッパ部１５側に付勢するばね２９が設けられており、
図１の状態で検出ブロック２０の油圧回路２２はプロー
ブ１０の油流出孔１３から後方に距離Ｌ0外れ、油流出
孔１３と油圧回路２２の連通は遮断されている。A spring 29 is provided between the front surface of the detection block 20 and the flange 12 of the probe 10 to urge the detection block toward the stopper 15 of the probe.
In the state of FIG. 1, the hydraulic circuit 22 of the detection block 20 is away from the oil outflow hole 13 of the probe 10 by a distance L 0 backward, and the communication between the oil outflow hole 13 and the hydraulic circuit 22 is cut off.
【００１３】検出ブロック２０はホース取着孔２３に圧
力センサ室３６に通ずるホース３５が取着され、従来図
３の検出ブロック３２と同様にエアシリンダ（自動押付
機）３３のピストンロッド３４に取着される。The detection block 20 has a hose 35 connected to the pressure sensor chamber 36 in the hose mounting hole 23, and is connected to a piston rod 34 of an air cylinder (automatic pressing machine) 33 similarly to the detection block 32 in FIG. Be worn.
【００１４】この油圧検出プローブの動作について説明
する。自動押付け機であるエアシリンダ３３のピストン
ロッド３４が前進すると、検出ブロック２０と共にプロ
ーブ１０が前進し、まずプローブ１０が供試体Ａの油圧
計測用孔ａに当接し、次いで検出ブロック２０がばね２
９を圧縮しながらプローブ１０上を摺動する。The operation of the hydraulic pressure detection probe will be described. When the piston rod 34 of the air cylinder 33, which is an automatic pressing machine, advances, the probe 10 advances together with the detection block 20, and the probe 10 first contacts the oil pressure measurement hole a of the specimen A, and then the detection block 20
9 is slid over the probe 10 while compressing it.
【００１５】このばね２９の圧縮によりプローブ１０の
先端のゴム製部材１９は孔ａに密着し、供試体Ａの油圧
が洩れることなくプローブ内に入る。検出ブロック２０
が前進し油圧回路２２がプローブ１０の油流出孔１３の
真上、即ち、図２のように検出ブロックの前面位置がプ
ローブ１０の先端から所定の距離Ｌの位置に来たところ
で、油流出孔１３と油圧回路２２が完全に連通し、供試
体Ａの油圧はプローブ１０から検出ブロック２０及びホ
ース３５を介して圧力センサ室３６に流れ、油圧計測が
なされる。Due to the compression of the spring 29, the rubber member 19 at the tip of the probe 10 comes into close contact with the hole a and enters the probe without leaking the hydraulic pressure of the specimen A. Detection block 20
Move forward, and when the hydraulic circuit 22 is located directly above the oil outflow hole 13 of the probe 10, that is, when the front surface of the detection block comes to a position at a predetermined distance L from the tip of the probe 10 as shown in FIG. 13 and the hydraulic circuit 22 are completely communicated, the hydraulic pressure of the specimen A flows from the probe 10 to the pressure sensor chamber 36 via the detection block 20 and the hose 35, and the hydraulic pressure is measured.
【００１６】供試体Ａの油圧計測が完了し、ピストンロ
ッド３４が後退すると、ばね２９により検出ブロック２
０は図１の状態に戻る。この場合、まず、プローブ１０
の油流出孔１３と検出ブロック２２との連通が遮断さ
れ、次いで供試体Ａから検出プローブ１０が離れる。When the measurement of the oil pressure of the specimen A is completed and the piston rod 34 is retracted, the detection block 2 is
0 returns to the state of FIG. In this case, first, the probe 10
The communication between the oil outflow hole 13 and the detection block 22 is interrupted, and then the detection probe 10 moves away from the specimen A.
【００１７】以上のように油圧検出プローブは動作する
ので、油圧計測後ホース３５内の油がプローブ１０側に
逆流しない。そしてプローブ１０内には油が残留する
が、プローブの内径は８ｍｍ以下と細くしてあり、油流
出孔１３は検出ブロック２０により塞がれているので、
プローブ１０内の油は毛細管現象によりプローブの先端
から流出しない。したがって、油圧計測後油圧プローブ
から、油が垂れ落ちることはない。Since the oil pressure detecting probe operates as described above, the oil in the hose 35 does not flow back to the probe 10 after the oil pressure measurement. Although oil remains in the probe 10, the inner diameter of the probe is reduced to 8 mm or less, and the oil outflow hole 13 is closed by the detection block 20.
The oil in the probe 10 does not flow out of the tip of the probe due to capillary action. Therefore, the oil does not drool from the hydraulic pressure probe after measuring the hydraulic pressure.
【００１８】なお、プローブ１０の内径は８ｍｍ以下で
よいが、あまり内径を小さくすると圧力計測の応答性が
悪化するので、毛細管現象でプローブ内の油が垂れ落ち
ない範囲で内径を大きくする必要がある。The inner diameter of the probe 10 may be 8 mm or less. However, if the inner diameter is too small, the response of pressure measurement deteriorates. Therefore, it is necessary to increase the inner diameter as long as the oil inside the probe does not droop due to the capillary phenomenon. is there.
【００１９】[0019]
【発明の効果】本発明の油圧検出プローブは上述のとお
り構成されているので、以下に記載する効果を奏する。Since the hydraulic pressure detection probe of the present invention is configured as described above, the following effects can be obtained.
【００２０】（１）油圧計測後の油垂れが１００％近く
無くなる。(1) Oil dripping after oil pressure measurement is reduced to almost 100%.
【００２１】（２）油垂れ防止用のバキューム装置が不
要となるので、コスト面，スペース面で極めて有利であ
る。(2) Since a vacuum device for preventing oil dripping is not required, it is extremely advantageous in terms of cost and space.
【００２２】（３）検出プローブはシンプルな油圧回路
構成となっているので、塵埃などが詰まる可能性が少な
く、メンテナンス性が向上する。(3) Since the detection probe has a simple hydraulic circuit configuration, there is little possibility that dust or the like is clogged, and maintenance is improved.
【図１】本発明にかかる油圧検出プローブの構成を示す
縦断面図。FIG. 1 is a longitudinal sectional view showing a configuration of a hydraulic pressure detection probe according to the present invention.
【図２】油圧計測時の油圧検出プローブの状態を示す縦
断面図。FIG. 2 is a longitudinal sectional view showing a state of a hydraulic pressure detection probe at the time of hydraulic pressure measurement.
【図３】従来油圧計測装置の構成説明図。FIG. 3 is a configuration explanatory view of a conventional oil pressure measuring device.
１０…プローブ １３…油圧流出孔 １５…ストッパ部 １９…ゴム製部材（プローブ先端部材） ２０…検出ブロック ２２…油圧回路 ２３…油圧ホース取着孔 ２９…ばね ３１…油圧検出プローブ ３２…検出ブロック ３３…エアシリンダ ３５…油圧ホース ３６…圧力センサ室 ３７…圧力センサ ３９…圧力表示器 ４１…切換弁 ４２…バキューム装置 ４３…逆止弁 Ａ…供試体 ａ…油圧計測用孔。 DESCRIPTION OF SYMBOLS 10 ... Probe 13 ... Hydraulic outflow hole 15 ... Stopper part 19 ... Rubber member (probe tip member) 20 ... Detection block 22 ... Hydraulic circuit 23 ... Hydraulic hose mounting hole 29 ... Spring 31 ... Hydraulic detection probe 32 ... Detection block 33 ... air cylinder 35 ... hydraulic hose 36 ... pressure sensor chamber 37 ... pressure sensor 39 ... pressure indicator 41 ... switching valve 42 ... vacuum device 43 ... check valve A ... specimen a ... oil pressure measurement hole.
Claims (1)
自動押し付けして供試体の油圧を油圧検出センサに導く
ための油圧検出プローブにおいて、 油圧検出プローブは、自動押付機に取着される検出ブロ
ックと、この検出ブロック内に摺動可能に設けられたプ
ローブと、検出ブロックをプローブ後端側に付勢するば
ねとからなり、 プローブは、後端が閉じ、開口した先端部がゴム等油圧
シール部材で構成され、油圧検出孔径が８ｍｍ以下で、
側壁に外側に通ずる油流出孔を有し、 検出ブロックは、プローブが摺動する内側から外側に通
ずる油検出孔を有し、 プローブの先端部が前記供試体の孔に押し付けられ検出
ブロックが前記ばねに抗して所定距離前進すると、プロ
ーブの油流出孔と検出ブロックの油圧検出孔が連通し、
押し付けが解除されると、検出ブロックがばねによりプ
ローブ後端側に後退して前記連通が遮断され、プローブ
内の残留油は表面張力により流出しないようにしたこと
を特徴とする油圧検出プローブ。1. A hydraulic pressure detecting probe for automatically pressing the tip of a probe into a hydraulic pressure measuring hole of a specimen to guide the oil pressure of the specimen to a hydraulic pressure detecting sensor, wherein the hydraulic pressure detecting probe is attached to an automatic pressing machine. The probe comprises a detection block, a probe slidably provided in the detection block, and a spring for urging the detection block toward the rear end of the probe. The probe has a rear end closed and an open front end made of rubber or the like. It is composed of a hydraulic seal member, the oil pressure detection hole diameter is 8mm or less,
The side wall has an oil outflow hole communicating with the outside, the detection block has an oil detection hole communicating from the inside to the outside with which the probe slides, and the tip of the probe is pressed against the hole of the specimen and the detection block is When advancing a predetermined distance against the spring, the oil outflow hole of the probe communicates with the oil pressure detection hole of the detection block,
When the pressing is released, the detection block retreats to the rear end side of the probe by a spring to cut off the communication, and the residual oil in the probe is prevented from flowing out due to surface tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225878A JPH1164142A (en) | 1997-08-22 | 1997-08-22 | Oil pressure detecting probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225878A JPH1164142A (en) | 1997-08-22 | 1997-08-22 | Oil pressure detecting probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1164142A true JPH1164142A (en) | 1999-03-05 |
Family
ID=16836287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9225878A Pending JPH1164142A (en) | 1997-08-22 | 1997-08-22 | Oil pressure detecting probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1164142A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016038077A (en) * | 2014-08-11 | 2016-03-22 | 三菱自動車工業株式会社 | Chain tensioner device |
| CN105547663A (en) * | 2015-12-04 | 2016-05-04 | 中国南方航空工业(集团)有限公司 | Bearing simulator flow direction test clamp |
-
1997
- 1997-08-22 JP JP9225878A patent/JPH1164142A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016038077A (en) * | 2014-08-11 | 2016-03-22 | 三菱自動車工業株式会社 | Chain tensioner device |
| CN105547663A (en) * | 2015-12-04 | 2016-05-04 | 中国南方航空工业(集团)有限公司 | Bearing simulator flow direction test clamp |
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