JPH109990A - Airtigiitness inspection apparatus of member to be inspected having grommet - Google Patents
Airtigiitness inspection apparatus of member to be inspected having grommetInfo
- Publication number
- JPH109990A JPH109990A JP15995096A JP15995096A JPH109990A JP H109990 A JPH109990 A JP H109990A JP 15995096 A JP15995096 A JP 15995096A JP 15995096 A JP15995096 A JP 15995096A JP H109990 A JPH109990 A JP H109990A
- Authority
- JP
- Japan
- Prior art keywords
- grommet
- inspected
- lip
- opening
- airtightness
- 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
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車エンジンの
シリンダヘッドカバーのように開口にグロメットが装着
された被検査部材の気密検査装置に係り、特に気密検査
工程でグロメットの逆向誤装着を検出可能にした装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtightness inspection apparatus for a member to be inspected having a grommet mounted in an opening, such as a cylinder head cover of an automobile engine, and more particularly to a device for detecting an incorrect mounting of a grommet in a reverse direction in an airtightness inspection process. Device.
【０００２】[0002]
【従来の技術】自動車エンジンのシリンダヘッドカバー
１は図３のように複数の円形のプラグ装着用開口２を有
し、この開口２に図４に示すようなシール用グロメット
３がカバー１内側から圧入により装着されて、グロメッ
ト３を介して各開口２にプラグ（図示せず）が装着され
る。このグロメット３はゴム製で、円形の開口２の内周
に嵌挿される筒状部４と、筒状部４の一端から筒状部４
の内方に同軸状に一体に延在する截頭円錐筒状のリップ
部５を有し、筒状部４の内周に円筒状の鉄芯７が一体化
され、リップ部５の小径側の開口先端部６にスプリング
リング８が埋設される。2. Description of the Related Art A cylinder head cover 1 of an automobile engine has a plurality of circular plug mounting openings 2 as shown in FIG. 3, and a sealing grommet 3 as shown in FIG. And a plug (not shown) is attached to each opening 2 via the grommet 3. The grommet 3 is made of rubber and has a cylindrical portion 4 fitted into the inner periphery of the circular opening 2, and a cylindrical portion 4 which is inserted from one end of the cylindrical portion 4.
And a frusto-conical cylindrical lip portion 5 extending coaxially and integrally therewith. A cylindrical iron core 7 is integrated with the inner periphery of the cylindrical portion 4, and a small diameter side of the lip portion 5. A spring ring 8 is buried in the opening end 6 of the opening.
【０００３】グロメット３は図４鎖線矢印に示すよう
に、その筒状部４がシリンダヘッドカバー１の内側から
開口２の内周に圧入される。この場合、グロメット３は
そのリップ部５の先端部６がカバー外側を向くように方
向性を規制されて圧入される。また、シリンダヘッドカ
バー１は高い気密性が要求されるので、開口２にグロメ
ット３を装着した後、グロメット３のリップ部５の孔を
はじめすべての孔を密封した状態で、シリンダヘッドカ
バー１の下縁部に嵌合されたガスケットを下向きにして
シリンダヘッドカバー１を定盤治具上に載せ、シリンダ
ヘッドカバー１の内部に高圧エアーを吹き込み、シリン
ダヘッドカバー１自体に万一亀裂があった場合のそこか
らの高圧エアーのリークや、グロメット３の装着不良に
よる筒状部４と開口２の内周との間からの高圧エアーの
リークがあるか否かの気密検査が行われる。The grommet 3 has its cylindrical portion 4 press-fitted from the inside of the cylinder head cover 1 to the inner periphery of the opening 2 as shown by the chain line arrow in FIG. In this case, the grommet 3 is press-fitted with its directionality regulated so that the tip 6 of the lip 5 faces the outside of the cover. Further, since the cylinder head cover 1 is required to have high airtightness, after the grommet 3 is attached to the opening 2, the lower edge of the cylinder head cover 1 is sealed in a state where all the holes including the lip portion 5 of the grommet 3 are sealed. The cylinder head cover 1 is placed on a surface plate jig with the gasket fitted to the part facing downward, and high-pressure air is blown into the cylinder head cover 1 to prevent the cylinder head cover 1 itself from being cracked if there is a crack. An airtightness inspection is performed to determine whether or not there is a leak of high-pressure air or a leak of high-pressure air from between the cylindrical portion 4 and the inner circumference of the opening 2 due to a mounting failure of the grommet 3.
【０００４】このような気密検査でのグロメット３のリ
ップ部５の孔の密封は、例えば図５に示すようなシール
治具９を使用して行われている。このシール治具９は、
グロメット３のリップ部先端部６を適宜密封する金属な
いし樹脂製の円柱ピンで、その外径は自由状態のリップ
部先端部６の内径よりわずかに大きくされている。The sealing of the hole of the lip portion 5 of the grommet 3 in such an airtight inspection is performed by using, for example, a sealing jig 9 as shown in FIG. This sealing jig 9
A metal or resin cylindrical pin for sealing the lip tip 6 of the grommet 3 appropriately, and its outer diameter is slightly larger than the inner diameter of the free lip tip 6.
【０００５】シール治具９が図５（Ａ）のようにシリン
ダヘッドカバー１の内側からグロメット３のリップ部５
に挿通されると、シール治具９の先端部外周がリップ部
５の先端部６に摺接して先端部６を密封する。この状態
でシリンダヘッドカバー１の内側に高圧エアー１０が吹
き込まれて気密検査が行なわれる。[0005] As shown in FIG. 5A, the sealing jig 9 is provided with a lip 5 of the grommet 3 from the inside of the cylinder head cover 1.
, The outer periphery of the tip of the sealing jig 9 slides on the tip 6 of the lip 5 to seal the tip 6. In this state, high-pressure air 10 is blown into the inside of the cylinder head cover 1 to perform an airtight inspection.
【０００６】[0006]
【発明が解決しようとする課題】グロメット３の装着状
態の良否検査項目としては、前述の気密性の他に方向性
がある。すなわち、グロメット３が稀ではあるが図５
（Ｂ）のように天地逆方向で誤装着されることがある。
このようにグロメット３が誤装着されても、リップ部５
の先端部６はシール治具９の外周面と密着し、ここから
のエア漏れは生じない。従って、エア漏れの有無からは
グロメット３の誤装着が判別できないのである。このよ
うなグロメット３の誤装着を後工程で点検するには、作
業員による目視確認の方法や専用のグロメット方向判定
治具による自動検査が考えられるが、前者は全数検査の
作業が大変で時間もかかるし、また後者は専用機の設置
スペースや費用、ならびに自動検査工程の追加による生
産性低下が問題となる。As an inspection item for the quality of the mounted state of the grommet 3, there is a direction in addition to the above-mentioned airtightness. That is, although the grommet 3 is rare, FIG.
As shown in (B), there is a case where the camera is erroneously mounted in the upside down direction.
Thus, even if the grommet 3 is incorrectly mounted, the lip 5
Of the sealing jig 9 is in close contact with the outer peripheral surface of the sealing jig 9, and no air leaks therefrom. Therefore, erroneous mounting of the grommet 3 cannot be determined from the presence or absence of air leakage. In order to check for such erroneous mounting of the grommet 3 in the post-process, a visual check method by an operator or an automatic inspection using a special grommet direction determination jig can be considered. In addition, the latter involves problems such as installation space and cost of a dedicated machine, and a decrease in productivity due to the addition of an automatic inspection process.
【０００７】本発明の目的は、シリンダヘッドカバー等
の被検査部材に対するグロメットの気密装着の良否検査
と同時に、グロメットの方向性判別も行える気密検査装
置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide an airtightness inspection apparatus which can determine whether the grommet is airtightly mounted on a member to be inspected, such as a cylinder head cover, and also determine the direction of the grommet.
【０００８】[0008]
【課題を解決するための手段】本発明の検査装置は前記
課題を解決するため、被検査部材の開口に装着される筒
状部と、該筒状部の片側周縁部から筒状部の内側へ屈曲
延在するリップ部とを有する開口シール用グロメット
の、前記被検査部材の開口での気密性を検査する気密検
査装置において、前記被検査部材の開口に装着されたグ
ロメットのリップ部内周に、前記被検査部材の一側から
気密に挿入可能であって、かつ、その先端面に気流路が
凹設された円柱状のシール治具と、前記被検査部材の一
側に気密検査用の高圧流体を導入する手段とを具備し、
前記リップ部の先端部を被検査部材の他側に向けてグロ
メットが装着された状態では前記シール治具の先端の外
周エッジ部がリップ部の内周面に気密に当接し、前記リ
ップ部の先端部を被検査部材の一側に向けてグロメット
が装着された状態では前記シール治具の先端面がリップ
部の先端部に当接すると共に、前記気流路がリップ部の
先端部との間に隙間を形成するようにした。SUMMARY OF THE INVENTION In order to solve the above problems, an inspection apparatus according to the present invention includes a tubular portion mounted on an opening of a member to be inspected, and an inner peripheral portion of the tubular portion from one peripheral edge of the tubular portion. In an airtightness inspection device for inspecting airtightness at an opening of the member to be inspected, the grommet for opening sealing having a lip portion bent and extending to an inner periphery of a lip portion of a grommet attached to the opening of the member to be inspected. A cylindrical sealing jig that can be airtightly inserted from one side of the member to be inspected, and has an air flow path recessed at the tip end thereof; and a seal jig for airtightness inspection on one side of the member to be inspected. Means for introducing a high-pressure fluid,
In a state in which the grommet is mounted with the tip of the lip facing the other side of the member to be inspected, the outer peripheral edge of the tip of the sealing jig abuts the inner peripheral surface of the lip in an airtight manner, and In a state where the grommet is mounted with the distal end directed toward one side of the member to be inspected, the distal end surface of the sealing jig contacts the distal end of the lip, and the air flow path is between the distal end of the lip. A gap was formed.
【０００９】ここで、気密検査用シール治具の先端面に
形成される気流路は、シール治具先端面にスリットや溝
等の凹部や、波面等の凹凸面を形成することで構成でき
る。Here, the air flow path formed on the distal end surface of the seal jig for airtight inspection can be formed by forming a concave portion such as a slit or a groove or an uneven surface such as a wave surface on the distal end surface of the seal jig.
【００１０】このシール治具を被検査部材の開口に正常
な方向性で装着されたグロメットのリップ部に挿入する
と、シール治具の先端部の外周エッジ部がリップ部内周
に当接してリップ部を密封し、この状態で被検査部材の
内側から高圧エアー等の高圧流体を供給して被検査部材
の気密検査が行われる。When the sealing jig is inserted into the lip of the grommet mounted in the opening of the member to be inspected in a normal direction, the outer peripheral edge of the tip of the sealing jig comes into contact with the inner periphery of the lip and the lip is formed. Is sealed, and in this state, a high-pressure fluid such as high-pressure air is supplied from the inside of the inspected member to perform an airtight inspection of the inspected member.
【００１１】また、被検査部材の開口にグロメットが逆
の方向で装着されていると、気密検査のためにシール治
具をリップ部に向けて挿入すると、シール治具の先端面
がリップ部の先端部に当接し、このときにシール治具先
端面の気流路がシール治具先端面とリップ部先端部の間
に存在して高圧流体のリークを許容するので、この高圧
流体のリークから気密不良またはグロメットの誤装着の
判定が行える。従って、シール治具は気密検査治具と共
にグロメット方向判定治具としての機能を備える。When the grommet is installed in the opening of the member to be inspected in the opposite direction, when the sealing jig is inserted toward the lip for airtight inspection, the tip end surface of the sealing jig is in contact with the lip. At this time, the air flow path at the seal jig tip surface is located between the seal jig tip surface and the lip tip end to allow the high pressure fluid to leak. It is possible to determine a defective or erroneously attached grommet. Accordingly, the sealing jig has a function as a grommet direction determining jig together with the airtightness inspection jig.
【００１２】[0012]
【発明の実施の形態】本発明を、図４のシリンダヘッド
カバー１の開口２に装着されたグロメット３の気密検査
装置に適用した一実施形態を図１及び図２を参照して説
明する。尚、以下、シリンダヘッドカバー１を被検査部
材１という。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an airtightness inspection device for a grommet 3 mounted on an opening 2 of a cylinder head cover 1 shown in FIG. 4 will be described with reference to FIGS. Hereinafter, the cylinder head cover 1 is referred to as a member to be inspected 1.
【００１３】本発明は、被検査部材１の開口２に装着さ
れたグロメット３と開口２との気密検査を行うシール治
具１１の先端部を改良したものである。シール治具１１
は図２に示すように円柱状のピンであって、金属や樹脂
などの適当な材料で製作される。シール治具１１の外径
は、グロメット３のリップ部先端部６の内径よりもわず
かに大きくされているが、リップ部５の先端部６と反対
側の折返し状に屈曲された基端部の内径よりは小さくさ
れている。このシール治具１１は、その平坦な先端面ｎ
に部分的にすりわり状のスリット１３を形成して、この
スリット１３の内部空間を後述の気流路１２としてい
る。シール治具１１の円柱状の先端ヘッド１４は円柱状
の本体１５とは別体であって、本体１５の先端に止め具
１６で連結されている。According to the present invention, the tip of the sealing jig 11 for inspecting the airtightness between the grommet 3 attached to the opening 2 of the inspected member 1 and the opening 2 is improved. Seal jig 11
Is a columnar pin as shown in FIG. 2, and is made of a suitable material such as metal or resin. The outer diameter of the sealing jig 11 is slightly larger than the inner diameter of the lip tip 6 of the grommet 3, but the base of the lip 5 opposite to the tip 6 is bent back. It is smaller than the inner diameter. The sealing jig 11 has a flat tip surface n
A slit 13 having a slit shape is formed in a part thereof, and an internal space of the slit 13 is used as an air flow path 12 described later. The cylindrical end head 14 of the sealing jig 11 is separate from the cylindrical main body 15, and is connected to the front end of the main body 15 by a stopper 16.
【００１４】グロメット３に対するシール治具１１の挿
入深さは、図１（Ａ）に示すように被検査部材１の開口
２にグロメット３が正常な方向、すなわちリップ部５の
先端部６を被検査部材１の外側（上側）に向けてグロメ
ットが装着された状態で、被検査部材１の内側からシー
ル治具１１がグロメット３のリップ部５に向けて同軸的
に挿入されると、シール治具１１の先端面ｎの外周エッ
ジ部ｍがリップ部５の基端部近くの内周に気密に当接す
るように設定される。As shown in FIG. 1A, the insertion depth of the sealing jig 11 into the grommet 3 is such that the grommet 3 is inserted into the opening 2 of the inspected member 1 in a normal direction, that is, the tip 6 of the lip 5 is covered. When the seal jig 11 is coaxially inserted from the inside of the inspected member 1 toward the lip portion 5 of the grommet 3 in a state where the grommet is mounted toward the outside (upper side) of the inspection member 1, the seal restoration is performed. The outer peripheral edge m of the distal end surface n of the tool 11 is set so as to hermetically contact the inner periphery near the base end of the lip 5.
【００１５】一方、シール治具１１の同程度の挿入深さ
において、図１（Ｂ）に示すように被検査部材１の開口
２にグロメット３が誤って天地逆方向、すなわちリップ
部５の先端部６を被検査部材１の内側（下側）に向けて
グロメット３が装着された状態で、被検査部材１の内側
からシール治具１１がグロメット３のリップ部５に向け
て同軸的に挿入されると、シール治具１１の先端面ｎが
リップ部５の先端部６に当接する。この当接状態でシー
ル治具１１の先端面ｎのスリット１３がリップ部５の先
端部６を半径方向に横切って、スリット１３内の気流路
１２がシール治具１１の外方とリップ部５の内方の空間
を連通する。On the other hand, at the same insertion depth of the sealing jig 11, the grommet 3 is erroneously inserted into the opening 2 of the member 1 to be inspected in the reverse direction, ie, the tip of the lip 5 as shown in FIG. In a state where the grommet 3 is mounted with the portion 6 facing the inside (lower side) of the inspected member 1, the sealing jig 11 is coaxially inserted from the inside of the inspected member 1 toward the lip portion 5 of the grommet 3. Then, the distal end surface n of the sealing jig 11 comes into contact with the distal end portion 6 of the lip portion 5. In this abutting state, the slit 13 on the distal end face n of the sealing jig 11 traverses the distal end 6 of the lip 5 in the radial direction, and the air flow path 12 in the slit 13 Communicating with the space inside.
【００１６】開口２とグロメット３の間の気密検査のた
め、従来と同様に被検査部材１の内側に高圧流体、例え
ば高圧エアー１０が吹き込まれるが、本発明ではエアー
漏れを生じないのは、図１（Ａ）のようにグロメット３
が正常に装着され、かつ、開口２とグロメット３間が気
密である場合に限られる。図１（Ｂ）のようにグロメッ
ト３が誤装着されている場合は、必ずエアー漏れを生じ
て不良品であることが分かるようになっている。なお、
高圧エアーの吹き込みのための装置は図示省略してい
る。A high-pressure fluid, for example, a high-pressure air 10 is blown into the member 1 to be inspected for airtightness inspection between the opening 2 and the grommet 3 as in the prior art. Grommet 3 as shown in FIG.
Is normally mounted and the space between the opening 2 and the grommet 3 is airtight. When the grommet 3 is erroneously mounted as shown in FIG. 1B, air leakage always occurs and it can be seen that the grommet 3 is defective. In addition,
A device for blowing high-pressure air is not shown.
【００１７】即ち、図１（Ａ）の場合、リップ部５の内
部がシール治具１１で密封されているので、高圧エアー
１０のリーク量等の測定により被検査部材１の気密検査
が行われる。例えば、被検査部材１の外側への高圧エア
ー１０のリーク量が基準値以下であると気密性良と判定
され、リーク量が基準値を超えると気密性不良と判定さ
れる。That is, in the case of FIG. 1A, since the inside of the lip portion 5 is sealed by the sealing jig 11, the airtight inspection of the inspection target member 1 is performed by measuring the leak amount of the high-pressure air 10 and the like. . For example, if the leak amount of the high-pressure air 10 to the outside of the inspected member 1 is equal to or less than the reference value, it is determined that the airtightness is good, and if the leak amount exceeds the reference value, it is determined that the airtightness is poor.
【００１８】一方、図１（Ｂ）の場合、シール治具１１
の先端面ｎとグロメット３のリップ部先端部６の当接箇
所に在る気流路１２がシール治具１１の外方の高圧エア
ー空間とリップ部５の内方の大気圧側とを連通している
ので、図１（Ｂ）の破線矢印で示すように被検査部材１
の内側の高圧エアー１０が気流路１２を通って被検査部
材１の外側にリークする。従って、図１（Ｂ）の場合に
おいては、被検査部材１の他の部分の気密性の良否に関
係無く気密不良の判定が出され、この判定結果からグロ
メット３の開口２への装着やり直しが行われ、この時は
じめてグロメット３の誤装着かどうかが分かる。On the other hand, in the case of FIG.
An air flow path 12 located at a contact point between the end surface n of the grommet 3 and the lip end portion 6 of the grommet 3 communicates the high-pressure air space outside the sealing jig 11 with the atmospheric pressure side inside the lip portion 5. Therefore, as shown by a broken arrow in FIG.
The high-pressure air 10 in the inside leaks through the air flow path 12 to the outside of the member 1 to be inspected. Therefore, in the case of FIG. 1B, a determination of poor airtightness is made regardless of whether the airtightness of the other part of the inspection target member 1 is good or not, and the mounting result of the grommet 3 to the opening 2 is determined based on the determination result. At this time, it is only at this time whether the grommet 3 is erroneously attached.
【００１９】なお、図１（Ｂ）の場合、シール治具１１
の気流路１２の寸法設定によって高圧エアー１０のリー
ク量がほぼ一定になるので、このリーク量測定信号ない
し圧力低下勾配からグロメット誤装着を自動検知するこ
とも可能である。In the case of FIG. 1B, the sealing jig 11
Since the amount of leakage of the high-pressure air 10 becomes substantially constant by setting the size of the air flow path 12, the erroneous grommet mounting can be automatically detected from the leakage amount measurement signal or the pressure drop gradient.
【００２０】尚、本発明は前記実施例に限らず、例えば
シール治具の先端面を波面状にして、その波面の山部を
グロメットのリップ部先端部に当接させ、波面の谷部の
空間を気流路にしてもよい。同様に、シール治具の先端
面を擂鉢状に窪ませ、グロメットのリップ部先端部を擂
鉢内に入れて容易に空気漏れを生じる構成にしてもよ
い。The present invention is not limited to the above-described embodiment. For example, the tip surface of the sealing jig is formed into a wave surface, and the peak portion of the wave surface is brought into contact with the tip portion of the grommet lip portion. The space may be an air flow path. Similarly, a configuration may be adopted in which the tip end surface of the sealing jig is depressed in a mortar shape, and the tip end of the lip portion of the grommet is placed in the mortar to easily cause air leakage.
【００２１】[0021]
【発明の効果】本発明によれば、グロメットの逆装着の
場合はシール治具先端面の気流路を通じて気密検査用の
高圧流体が被検査部材の内側から外側にリークするか
ら、グロメットの逆装着を専用のグロメット方向判定治
具などを使用すること無く気密性検査工程で自動検査で
きる。According to the present invention, when the grommet is reversely mounted, the high-pressure fluid for airtightness leaks from the inside of the member to be inspected to the outside through the air flow path at the end surface of the sealing jig. Can be automatically inspected in an airtightness inspection process without using a dedicated grommet direction determination jig or the like.
【図１】（Ａ）（Ｂ）は本発明の実施形態を示すシール
治具の気密検査使用時の部分断面を含む部分側面図。FIGS. 1A and 1B are partial side views including a partial cross section when an airtightness inspection of a sealing jig according to an embodiment of the present invention is used.
【図２】シール治具の先端部斜視図。FIG. 2 is a perspective view of a distal end portion of a sealing jig.
【図３】被検査部材であるシリンダヘッドカバーの斜視
図。FIG. 3 is a perspective view of a cylinder head cover which is a member to be inspected.
【図４】シリンダヘッドカバーの開口部分での拡大断面
図である。FIG. 4 is an enlarged sectional view of an opening portion of a cylinder head cover.
【図５】（Ａ）（Ｂ）は従来の気密検査装置のシール治
具の気密検査使用時の部分側面図。FIGS. 5A and 5B are partial side views of a sealing jig of a conventional airtightness inspection device when airtightness inspection is used.
１ 被検査部材 ２ 開口 ３ グロメット ４ 筒状部 ５ リップ部 ６ リップ部先端部 １１ シール治具 ｎ 外周エッジ部 ｍ 先端面 １２ 気流路 １３ スリット DESCRIPTION OF SYMBOLS 1 Inspection member 2 Opening 3 Grommet 4 Cylindrical part 5 Lip part 6 Lip tip part 11 Sealing jig n Outer peripheral edge part m Tip surface 12 Air flow path 13 Slit
Claims (2)
と、該筒状部の片側周縁部から筒状部の内側へ屈曲延在
するリップ部とを有する開口シール用グロメットの、前
記被検査部材の開口での気密性を検査する気密検査装置
において、 前記被検査部材の開口に装着されたグロメットのリップ
部内周に、前記被検査部材の一側から気密に挿入可能で
あって、かつ、その先端面に気流路が凹設された円柱状
のシール治具と、 前記被検査部材の一側に気密検査用の高圧流体を導入す
る手段とを具備し、 前記リップ部の先端部を被検査部材の他側に向けてグロ
メットが装着された状態では前記シール治具の先端の外
周エッジ部がリップ部の内周面に気密に当接し、 前記リップ部の先端部を被検査部材の一側に向けてグロ
メットが装着された状態では前記シール治具の先端面が
リップ部の先端部に当接すると共に、前記気流路がリッ
プ部の先端部との間に隙間を形成するようにしたことを
特徴とするグロメットを有する被検査部材の気密検査装
置1. An opening sealing grommet, comprising: a tubular portion mounted in an opening of a member to be inspected; and a lip bent from one peripheral edge of the tubular portion to the inside of the tubular portion. In an airtightness inspection device for inspecting airtightness at an opening of a member to be inspected, an inner periphery of a lip portion of a grommet attached to the opening of the member to be inspected can be hermetically inserted from one side of the member to be inspected, A cylindrical sealing jig having an air flow path recessed at a tip end surface thereof; and a means for introducing a high-pressure fluid for airtightness inspection to one side of the inspection target member, and a tip end portion of the lip portion. In a state where the grommet is mounted toward the other side of the member to be inspected, the outer peripheral edge portion of the tip of the seal jig abuts the inner peripheral surface of the lip portion in an airtight manner, and the distal end portion of the lip portion is the member to be inspected. When the grommet is attached to one side of the The airtightness of a member to be inspected having a grommet, wherein a tip end surface of a sealing jig abuts a tip end portion of a lip portion and the air flow path forms a gap between the tip end portion of the lip portion. Inspection device
に半径方向に凹設されたスリットであることを特徴とす
る請求項１記載のグロメットを有する被検査部材の気密
検査装置2. An airtightness inspection apparatus for a member to be inspected having a grommet according to claim 1, wherein the air flow path is a slit formed in the distal end surface of the sealing jig in a radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15995096A JP3299673B2 (en) | 1996-06-20 | 1996-06-20 | Airtightness inspection device for inspected member having grommet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15995096A JP3299673B2 (en) | 1996-06-20 | 1996-06-20 | Airtightness inspection device for inspected member having grommet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH109990A true JPH109990A (en) | 1998-01-16 |
| JP3299673B2 JP3299673B2 (en) | 2002-07-08 |
Family
ID=15704711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15995096A Expired - Fee Related JP3299673B2 (en) | 1996-06-20 | 1996-06-20 | Airtightness inspection device for inspected member having grommet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3299673B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145088A (en) * | 2007-12-12 | 2009-07-02 | Kinugawa Rubber Ind Co Ltd | Airtightness inspection method for annular workpiece and its device |
| CN102735402A (en) * | 2012-07-03 | 2012-10-17 | 昆山迈致治具科技有限公司 | Semi-automatic vacuum test fixture |
| CN102749179A (en) * | 2012-06-19 | 2012-10-24 | 赛龙通信技术（深圳）有限公司 | Clamp, system and method for testing air tightness |
| CN102914434A (en) * | 2012-11-14 | 2013-02-06 | 安徽巨一自动化装备有限公司 | Rapid pluggable sealing inflation mechanism |
| CN104677563A (en) * | 2013-08-12 | 2015-06-03 | 芜湖永裕汽车工业有限公司 | Air tightness detecting method for air passage of engine cylinder head |
| CN111289186A (en) * | 2020-03-01 | 2020-06-16 | 湖北湘纬新能源科技有限公司 | Helium detection device and detection method for lithium battery structural member |
| CN115978335A (en) * | 2023-03-20 | 2023-04-18 | 南京泰普森自动化设备有限公司 | Plugging and inflating device and method for cavity structure |
-
1996
- 1996-06-20 JP JP15995096A patent/JP3299673B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145088A (en) * | 2007-12-12 | 2009-07-02 | Kinugawa Rubber Ind Co Ltd | Airtightness inspection method for annular workpiece and its device |
| CN102749179A (en) * | 2012-06-19 | 2012-10-24 | 赛龙通信技术（深圳）有限公司 | Clamp, system and method for testing air tightness |
| CN102735402A (en) * | 2012-07-03 | 2012-10-17 | 昆山迈致治具科技有限公司 | Semi-automatic vacuum test fixture |
| CN102914434A (en) * | 2012-11-14 | 2013-02-06 | 安徽巨一自动化装备有限公司 | Rapid pluggable sealing inflation mechanism |
| CN104677563A (en) * | 2013-08-12 | 2015-06-03 | 芜湖永裕汽车工业有限公司 | Air tightness detecting method for air passage of engine cylinder head |
| CN111289186A (en) * | 2020-03-01 | 2020-06-16 | 湖北湘纬新能源科技有限公司 | Helium detection device and detection method for lithium battery structural member |
| CN115978335A (en) * | 2023-03-20 | 2023-04-18 | 南京泰普森自动化设备有限公司 | Plugging and inflating device and method for cavity structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3299673B2 (en) | 2002-07-08 |
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