JPH0742085Y2 - Appearance inspection device for molded products - Google Patents
Appearance inspection device for molded productsInfo
- Publication number
- JPH0742085Y2 JPH0742085Y2 JP15132789U JP15132789U JPH0742085Y2 JP H0742085 Y2 JPH0742085 Y2 JP H0742085Y2 JP 15132789 U JP15132789 U JP 15132789U JP 15132789 U JP15132789 U JP 15132789U JP H0742085 Y2 JPH0742085 Y2 JP H0742085Y2
- Authority
- JP
- Japan
- Prior art keywords
- molded product
- annular lip
- oil seal
- inspected
- deforming
- 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 - Lifetime
Links
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- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、成形品の品質検査技術に係る成形品の外観検
査装置に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a molded product appearance inspection apparatus relating to a molded product quality inspection technique.
従来、オイルシールなどの成形品の品質検査は、模擬作
動試験装置による機能確認検査や作業者の目視による外
観検査が行なわれている。外観検査は、成形品に不要な
凹凸などの表面欠陥があるか否かを調べるために実施さ
れるものである。2. Description of the Related Art Conventionally, for quality inspection of molded products such as oil seals, function confirmation inspection by a simulated operation test device and visual appearance inspection by an operator are performed. The visual inspection is carried out to check whether or not the molded product has surface defects such as unnecessary irregularities.
従来の外観検査には、該検査が作業者の目視によって行
なわれるため検査精度が人によってばらつく、という問
題がある。また能率が上がらず、特に成形品の形状によ
っては該成形品を変形させなければ被検査部を十分に見
ることができないといった場合があるため、このような
場合に、作業者が多数の成形品をひとつずつ変形させて
目視検査を行なっていたのでは能率が極めて悪いという
問題がある。The conventional visual inspection has a problem that the inspection accuracy varies depending on the person because the inspection is performed by the operator's visual inspection. In addition, the efficiency may not increase, and in particular, depending on the shape of the molded product, the inspected part may not be sufficiently viewed unless the molded product is deformed. There is a problem that the efficiency is extremely poor if the visual inspection is performed by deforming each one.
本考案は以上の点に鑑み、成形品の外観検査を自動化し
て検査精度と作業能率を向上させることを目的とするも
のであって、この目的を達成するため、成形品を当該検
査装置へ向けて運搬する運搬装置と、前記成形品を支持
して前記成形品を回転させる支持回転装置と、前記成形
品を前記運搬装置から前記支持回転装置へ移送する移送
装置と、前記支持回転装置に支持されて回転する成形品
の被検査部を変形させる変形装置と、前記変形装置によ
り変形させられた前記被検査部の表面の良否を判定する
良否判定装置と、前記良否判定装置からの良否判定信号
にもとづいて前記成形品の排出方向を仕分ける排出装置
と、よりなる成形品の外観検査装置を提供する。In view of the above points, the present invention aims at automating the appearance inspection of a molded product to improve the inspection accuracy and work efficiency. To achieve this object, the molded product is transferred to the inspection device. A carrying device for carrying the molded product, a supporting and rotating device for supporting the molded product and rotating the molded product, a transfer device for transferring the molded product from the carrying device to the supporting and rotating device, and the supporting and rotating device. A deforming device that deforms an inspected portion of a supported and rotating molded product, a pass / fail determination device that determines pass / fail of the surface of the inspected portion that is deformed by the deforming device, and a pass / fail determination from the pass / fail determination device Disclosed is a discharge device that sorts the discharge direction of the molded product based on a signal, and a molded product appearance inspection device including the discharge device.
また、前記成形品がオイルシールであり、前記被検査部
が前記オイルシールの環状リップであり、前記変形装置
が前記環状リップを略軸方向に押さえて変形させる押圧
部材と、前記環状リップが半径方向へ倒れ込むのを防止
する傾倒防止部材とよりなることを特徴とする成形品の
外観検査装置を提供する。The molded product is an oil seal, the inspected part is an annular lip of the oil seal, and the deforming device presses the annular lip in a substantially axial direction to deform it, and the annular lip has a radius. (EN) Provided is an appearance inspection device for a molded product, which comprises a tilt prevention member for preventing the product from falling in a direction.
また、前記成形品がオイルシールであり、前記被検査部
が前記オイルシールの環状リップであり、前記変形装置
が前記環状リップの内周部を密封する密封部材と、前記
環状リップの内周部を負圧にする排気装置とよりなるこ
とを特徴とする成形品の外観検査装置を提供する。Further, the molded product is an oil seal, the inspected portion is an annular lip of the oil seal, the deforming device seals an inner peripheral portion of the annular lip, and an inner peripheral portion of the annular lip. An appearance inspection device for a molded product, comprising: an exhaust device for making a negative pressure.
さらに、前記良否判定装置が前記被検査部の表面形状を
計測するカメラと、前記カメラからの形状信号を演算処
理して良否判定信号を出力するコンピュータとよりなる
ことを特徴する成形品の外観検査装置を提供する。Further, the appearance inspection of the molded product, wherein the quality determination device is composed of a camera for measuring the surface shape of the inspected part and a computer for processing the shape signal from the camera and outputting a quality determination signal. Provide a device.
本考案の検査装置は、オイルシールやパッキンなどの、
一部または全部をゴム状弾性材によって成形された環状
体を検査対象とする。The inspection device of the present invention, such as oil seals and packing,
A ring-shaped body formed by molding a part or all of the rubber-like elastic material is an inspection target.
この成形品をベルトコンベヤまたはパーツフィーダなど
の運搬装置で当該装置へ運び込み、チャックなどの移送
装置によって支持回転装置の上に載せる。支持回転装置
はヤトイのように回転駆動して成形品を回転させ、回転
中の成形品を良否判定装置で観察して表面欠陥の有無を
検出する。成形品を回転させるのは、良否判定装置によ
る観察域を定置的に円周の１箇所に定めた上で、成形品
を全周に亘って検査するためである。良否判定装置によ
る観察をし易くするため、回転中の成形品を変形装置に
より変形させる。良否判定装置による検査結果を該判定
装置から排出装置へ信号として出力し、排出装置によっ
て成形品を良品と不良品とに仕分けする。This molded product is carried to the device by a conveyor such as a belt conveyor or a parts feeder, and placed on a supporting and rotating device by a transfer device such as a chuck. The supporting and rotating device rotates like a toy to rotate the molded product, and observes the rotating molded product with a quality determination device to detect the presence or absence of surface defects. The reason why the molded product is rotated is to inspect the molded product over the entire circumference after the observation area by the quality determination device is fixedly set at one position on the circumference. In order to facilitate observation by the quality determination device, the rotating molded product is deformed by the deforming device. The inspection result by the quality determination device is output as a signal from the determination device to the discharge device, and the discharge device sorts the molded product into a good product and a defective product.
成形品が環状リップを備えたオイルシールであって前記
環状リップの表面を検査する場合には、前記環状リップ
を変形装置によって弾性変形させるが、変形させる手段
としては、機械要素によって押圧したり（第２請求
項）、環状リップの内周部を密閉して該内周部に負圧を
かけたり（第３請求項）する方法がある。When the molded product is an oil seal having an annular lip and the surface of the annular lip is to be inspected, the annular lip is elastically deformed by a deforming device. (2nd claim), there is a method of sealing the inner peripheral portion of the annular lip and applying a negative pressure to the inner peripheral portion (3rd claim).
良否判定装置は、当該検査装置の機能上、表面欠陥を検
出する主たる構成要素であって、例えば、被検査部の表
面形状を計測するカメラと、該カメラからの形状信号を
演算処理して良否判定信号を出力するコンピュータとよ
りなる。The quality determination device is a main component that detects a surface defect in terms of the function of the inspection device. For example, a camera that measures the surface shape of the inspected portion and a shape signal from the camera are arithmetically processed. And a computer that outputs a determination signal.
つぎに本考案の実施例を図面にしたがって説明すると、
当該検査装置は第６図に示すようなオイルシール（ａ）
を検査対象とし、ゴム状弾性材によって成形された環状
リップ（ｂ）に表面欠陥があるか否かを検査するもので
ある。Next, an embodiment of the present invention will be described with reference to the drawings.
The inspection device has an oil seal (a) as shown in FIG.
The object of inspection is to inspect whether the annular lip (b) formed of the rubber-like elastic material has a surface defect.
第１図ないし第３図に示すように、ベース（１）の一側
にオイルシール（ａ）を運び込む運搬装置（２）が設置
され、その延長方向にオイルシール（ａ）を支持して回
転させる支持回転装置（３）が設置されている。運搬装
置（２）はベルトコンベヤであり、該コンベヤの末端ま
で運搬されてきたオイルシール（ａ）を移送装置（10）
によって支持回転装置（３）の上に載せる。移送装置
（10）はオイルシール（ａ）を釈放自在に掴持するチャ
ック（11）と、チャック（11）を開閉させるエアシリン
ダ（12）と、チャック（11）を昇降させるエアシリンダ
（13）と、チャック（11）を水平移動させるエアシリン
ダ（14）とを有し、ベルトコンベヤの末端で掴んだオイ
ルシール（ａ）を支持回転装置（３）まで移送する。支
持回転装置（３）はモータ（４）によって回転駆動する
ヤトイ（５）を有し、第３図に示すようにヤトイ（５）
の上面にオイルシール（ａ）を載置する。環状を呈する
ヤトイ（５）の上方および内周に、オイルシール（ａ）
の環状リップ（ｂ）を弾性変形させる変形装置（15）が
設置され、変形装置（15）は環状リップ（ｂ）を略下向
きに押圧して変形させる押圧部材（16）と、環状リップ
（ｂ）が押圧部材（16）に押されたときに内周方向へ倒
れ込むのを防止する傾倒防止部材（21）とを有してい
る。すなわち、当該検査装置は後記カメラ（26）などを
つかって環状リップ（ｂ）のシール縁（ｃ、第６図）を
検査することを予定しており、シール縁（ｃ）を斜め上
方へ向けてカメラ（26）と正対させるため、リップ
（ｂ）を全体としては傾倒させることなくシール縁
（ｃ）を転向させる。このため押圧部材（16）はエアシ
リンダ（17）のロッド（18）端に独楽部材（19）を斜め
にかつ回転自在に取り付け、該独楽部材（19）の独楽軸
（20）により環状リップ（ｂ）を下方へ押してシール縁
（ｃ）を転向させる。独楽軸（20）によって変形される
のは、カメラ（26）の観察視野と一致させたところの、
環状リップ（ｂ）の円周の一部のみである。これに対し
て、環状リップ（ｂ）の倒れ込みを防止する傾倒防止部
材（21）は環状または円板状であって、環状リップ
（ｂ）を全周に亘って支持する。傾倒防止部材（21）は
エアシリンダ（22）によって昇降し、環状リップ（ｂ）
に対して下方から密接する。傾倒防止部材（21）を環状
リップ（ｂ）に対して全周に亘って密接させたことか
ら、該傾倒防止部材（21）、オイルシール（ａ）および
ヤトイ（５）によって囲まれる空間（24）から外部へ空
気を排出して空間（24）に負圧を発生させることにより
（排気装置）、オイルシール（ａ）をヤトイ（５）に吸
着させ、オイルシール（ａ）をヤトイ（５）に従動回転
させる。このためヤトイ（５）には非回転の底蓋
（６）、シール（７）（７）、排気路（８）が設けら
れ、図示しない負圧発生装置へ通じる配管（９）が接続
されている。環状リップ（ｂ）の表面に欠陥があるか否
かを検知する良否判定装置（25）は環状リップ（ｂ）の
表面形状を計測するカメラ（26）と、このカメラ（26）
からの形状信号を演算処理して良否判定信号を出力する
コンピュータ（図示せず）とよりなり、この信号を受け
て排出装置（27）がオイルシール（ａ）を良品と不良品
とに仕分けする。排出装置（27）はヤトイ（５）からベ
ルトコンベヤ（28）の始端部へオイルシール（ａ）を押
し出す押出し部材（29）と、ベルトコンベヤ（28）と、
良否判定信号にしたがって良品または不良品の何れか一
方をベルトコンベヤ（28）の横手へ押し出す仕分け部材
（30）とを有し、上記一連の構成および作動によって多
数のオイルシール（ａ）をひとつずつ次から次へと自動
的に外観検査する。検査精度はコンピュータの利用によ
り飛躍的に高められる。As shown in FIGS. 1 to 3, a carrier (2) for carrying the oil seal (a) is installed on one side of the base (1), and the oil seal (a) is supported and rotated in the extension direction thereof. A supporting and rotating device (3) is installed. The transport device (2) is a belt conveyor, and the oil seal (a) transported to the end of the conveyor is a transport device (10).
Mounted on the support and rotation device (3) by. The transfer device (10) includes a chuck (11) that releasably holds the oil seal (a), an air cylinder (12) that opens and closes the chuck (11), and an air cylinder (13) that moves the chuck (11) up and down. And an air cylinder (14) for horizontally moving the chuck (11), and transfers the oil seal (a) gripped at the end of the belt conveyor to the supporting and rotating device (3). The supporting / rotating device (3) has a ear toy (5) which is rotationally driven by a motor (4), and as shown in FIG.
Place the oil seal (a) on the upper surface of the. An oil seal (a) is provided above and on the inner circumference of the ring-shaped yattoo (5).
A deforming device (15) for elastically deforming the annular lip (b) is installed, and the deforming device (15) presses the annular lip (b) substantially downward and deforms it, and the annular lip (b). ) Has a tilting prevention member (21) for preventing it from falling inwardly when pressed by the pressing member (16). That is, the inspection device is scheduled to inspect the seal edge (c, FIG. 6) of the annular lip (b) by using the camera (26) described later, and the seal edge (c) is directed obliquely upward. In order to directly face the camera (26), the seal edge (c) is turned without tilting the lip (b) as a whole. Therefore, the pressing member (16) has a top member (19) obliquely and rotatably attached to the end of the rod (18) of the air cylinder (17), and the top shaft (20) of the top member (19) forms an annular lip ( Push b) downwards to deflect the sealing edge (c). What is deformed by the top axis (20) is that it matches the observation field of view of the camera (26).
Only part of the circumference of the annular lip (b). On the other hand, the tilt prevention member (21) for preventing the annular lip (b) from falling is annular or disc-shaped and supports the annular lip (b) over the entire circumference. The tilt prevention member (21) moves up and down by the air cylinder (22), and the annular lip (b)
Close to from below. Since the tilt-preventing member (21) is brought into close contact with the annular lip (b) over the entire circumference, the space (24) surrounded by the tilt-preventing member (21), the oil seal (a) and the yattoy (5). ) To the outside to generate a negative pressure in the space (24) (exhaust device) so that the oil seal (a) is adsorbed to the yatoy (5) and the oil seal (a) is taken to the yatoy (5). Follow the rotation. For this reason, the yattoy (5) is provided with a non-rotating bottom lid (6), seals (7) and (7), and an exhaust passage (8), and a pipe (9) leading to a negative pressure generating device (not shown) is connected. There is. A quality determination device (25) for detecting whether or not there is a defect on the surface of the annular lip (b) includes a camera (26) for measuring the surface shape of the annular lip (b), and this camera (26).
It is composed of a computer (not shown) that processes the shape signal from the device and outputs a quality determination signal, and the discharge device (27) receives the signal and sorts the oil seal (a) into a good product and a defective product. . The discharging device (27) includes an extruding member (29) for pushing the oil seal (a) from the yattoy (5) to the starting end of the belt conveyor (28), the belt conveyor (28),
It has a sorting member (30) for pushing out either a good product or a defective product to the lateral side of the belt conveyor (28) according to the pass / fail judgment signal, and a large number of oil seals (a) are provided one by one by the above series of configurations and operations. Automatically inspect the appearance one after another. Inspection accuracy is dramatically improved by using a computer.
オイルシール（ａ）の環状リップ（ｂ）の基端部外周面
（ｄ、第６図）を検査する場合には、第４図に示すよう
に、変形装置（15）に円板状の密封部材（23）をつかっ
て該密封部材（23）を環状リップ（ｂ）に上方から密接
させる一方で空間（24）内に大きな負圧をかけ、これに
より、環状リップ（ｂ）を内周側へ傾倒して基端部外周
面（ｄ）をカメラ（26）の視野に入れる。また第５図に
示すように、前記密封部材（23）に代え、環状リップ
（ｂ）に後加工によって切断除去する密封部（ｅ）を一
体成形することも考えられる。When inspecting the outer peripheral surface (d, FIG. 6) of the annular lip (b) of the oil seal (a), as shown in FIG. The sealing member (23) is brought into close contact with the annular lip (b) from above by using the member (23) while a large negative pressure is applied to the space (24), whereby the annular lip (b) is moved toward the inner peripheral side. Inclining to put the outer peripheral surface (d) of the base end into the field of view of the camera (26). Further, as shown in FIG. 5, instead of the sealing member (23), it is conceivable to integrally form a sealing portion (e), which is cut and removed by post-processing, on the annular lip (b).
上記実施例に係る検査装置に対しては、その構成を次の
ように変更することができる。The configuration of the inspection device according to the above-described embodiment can be changed as follows.
運搬装置（２）にロボットを使用する。 Use a robot for the carrier (2).
排出装置（27）にロボットを使用する。 Use a robot for the ejector (27).
ヤトイ（５）のオイルシール（ａ）支持に機械式チ
ャックを用いる。A mechanical chuck is used to support the oil seal (a) of the yatoy (5).
変形装置（15）にエアブローを用いる。 An air blow is used for the deformation device (15).
良否判定装置（25）に検査すべき欠陥に対応したも
のを用いる。例えば触針式の表面粗さ計、超音波探傷装
置などである。A device corresponding to the defect to be inspected is used for the quality determination device (25). For example, a stylus type surface roughness meter, an ultrasonic flaw detector, and the like.
本考案の外観検査装置は以上説明したように、成形品の
外観検査を全て自動化したものであって、検査精度と作
業能率を向上させることができる。As described above, the visual inspection apparatus of the present invention is an automated visual inspection of a molded product, and can improve the inspection accuracy and work efficiency.
第１図は本考案の実施例に係る外観検査装置の斜視図、
第２図は同平面図、第３図は同作動状態を示す一部断面
図、第４図は他の実施例に係る外観検査装置の作動状態
を示す一部断面図、第５図および第６図はそれぞれオイ
ルシールの一部断面図である。 （１）ベース、（２）運搬装置 （３）支持回転装置、（４）モータ、（５）ヤトイ （６）底蓋、（７）シール、（８）排気路 （９）配管、（10）移送装置、（11）チャック （12）（13）（14）（17）（22）エアシリンダ （15）変形装置、（16）押圧部材、（18）ロッド （19）独楽部材、（20）独楽軸 （21）傾倒防止部材、（23）密封部材、（24）空間 （25）良否判定装置、（26）カメラ （27）排出装置、（28）ベルトコンベヤ （29）押出し部材、（30）仕分け部材 （ａ）オイルシール（成形品） （ｂ）環状リップ（被検査部）、（ｃ）シール縁 （ｄ）基端部外周面、（ｅ）密封部FIG. 1 is a perspective view of an appearance inspection apparatus according to an embodiment of the present invention,
2 is a plan view of the same, FIG. 3 is a partial sectional view showing the same operating state, FIG. 4 is a partial sectional view showing an operating state of a visual inspection apparatus according to another embodiment, FIG. 5 and FIG. FIG. 6 is a partial cross-sectional view of the oil seal. (1) Base, (2) Carrier, (3) Support Rotating Device, (4) Motor, (5) Yatto (6) Bottom Cover, (7) Seal, (8) Exhaust Path (9) Piping, (10) Transfer device, (11) Chuck (12) (13) (14) (17) (22) Air cylinder (15) Deformer, (16) Pressing member, (18) Rod (19) Top member, (20) Top Axis (21) Tilt prevention member, (23) Sealing member, (24) Space (25) Pass / fail judgment device, (26) Camera (27) Ejection device, (28) Belt conveyor (29) Extrusion member, (30) Sorting Member (a) Oil seal (molded product) (b) Annular lip (inspected part), (c) Seal edge (d) Base end outer peripheral surface, (e) Sealing part
Claims (4)
する運搬装置（２）と、前記成形品（ａ）を支持して前
記成形品（ａ）を回転させる支持回転装置（３）と、前
記成形品（ａ）を前記運搬装置（２）から前記支持回転
装置（３）へ移送する移送装置（10）と、前記支持回転
装置（３）に支持されて回転する成形品（ａ）の被検査
部（ｂ）を変形させる変形装置（15）と、前記変形装置
（15）により変形させられた前記被検査部（ｂ）の表面
の良否を判定する良否判定装置（25）と、前記良否判定
装置（25）からの良否判定信号にもとづいて前記成形品
（ａ）の排出方向を仕分ける排出装置（27）と、よりな
る成形品の外観検査装置。1. A carrying device (2) for carrying a molded product (a) toward the inspection device, and a supporting and rotating device (3) for supporting the molded product (a) and rotating the molded product (a). ), A transfer device (10) for transferring the molded product (a) from the carrying device (2) to the support rotation device (3), and a molded product (10) which is supported and rotated by the support rotation device (3). a) A deforming device (15) for deforming the inspected portion (b), and a pass / fail judgment device (25) for determining pass / fail of the surface of the inspected portion (b) deformed by the deforming device (15). And a discharge device (27) that sorts the discharge direction of the molded product (a) based on a quality determination signal from the quality determination device (25).
前記被検査部（ｂ）が前記オイルシールの環状リップで
あり、前記変形装置（15）が前記環状リップを略軸方向
に押さえて変形させる押圧部材（16）と、前記環状リッ
プが半径方向へ倒れ込むのを防止する傾倒防止部材（2
1）とよりなる第１項記載の成形品の外観検査装置。2. The molded article (a) is an oil seal,
The portion to be inspected (b) is an annular lip of the oil seal, the deforming device (15) presses the annular lip in a substantially axial direction to deform it, and the annular lip extends in the radial direction. Tilt prevention member (2
1) An appearance inspection device for a molded article according to item 1, which comprises
前記被検査部（ｂ）が前記オイルシールの環状リップで
あり、前記変形装置（15）が前記環状リップの内周部を
密封する密封部材（23）と、前記環状リップの内周部を
負圧にする排気装置とよりなる第１項記載の成形品の外
観検査装置。3. The molded article (a) is an oil seal,
The inspected part (b) is an annular lip of the oil seal, the deformation device (15) seals an inner peripheral part of the annular lip, and a sealing member (23) seals the inner peripheral part of the annular lip. The appearance inspection device for a molded article according to claim 1, comprising an exhaust device for applying pressure.
（ｂ）の表面形状を計測するカメラ（26）と、前記カメ
ラ（26）からの形状信号を演算処理して良否判定信号を
出力するコンピュータとよりなる第１項記載の成形品の
外観検査装置。4. A camera (26) for measuring the surface shape of the part (b) to be inspected by the quality judgment device (25), and a shape signal from the camera (26) is arithmetically processed to obtain a quality judgment signal. The appearance inspection device for a molded article according to item 1, which comprises a computer for outputting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15132789U JPH0742085Y2 (en) | 1989-12-28 | 1989-12-28 | Appearance inspection device for molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15132789U JPH0742085Y2 (en) | 1989-12-28 | 1989-12-28 | Appearance inspection device for molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0390009U JPH0390009U (en) | 1991-09-13 |
| JPH0742085Y2 true JPH0742085Y2 (en) | 1995-09-27 |
Family
ID=31697633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15132789U Expired - Lifetime JPH0742085Y2 (en) | 1989-12-28 | 1989-12-28 | Appearance inspection device for molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742085Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009244118A (en) * | 2008-03-31 | 2009-10-22 | Arai Seisakusho Co Ltd | Device for inspecting oil seal |
| KR101865188B1 (en) * | 2017-01-19 | 2018-06-12 | 주식회사 포비스 | Flatness measuring equipment, shield can flatness inspection device and method of inspection of shield can flatness using this |
-
1989
- 1989-12-28 JP JP15132789U patent/JPH0742085Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009244118A (en) * | 2008-03-31 | 2009-10-22 | Arai Seisakusho Co Ltd | Device for inspecting oil seal |
| KR101865188B1 (en) * | 2017-01-19 | 2018-06-12 | 주식회사 포비스 | Flatness measuring equipment, shield can flatness inspection device and method of inspection of shield can flatness using this |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0390009U (en) | 1991-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |