JPH0968421A - Method and apparatus for automatic detection of surface-roughness abnormal product - Google Patents
Method and apparatus for automatic detection of surface-roughness abnormal productInfo
- Publication number
- JPH0968421A JPH0968421A JP22297795A JP22297795A JPH0968421A JP H0968421 A JPH0968421 A JP H0968421A JP 22297795 A JP22297795 A JP 22297795A JP 22297795 A JP22297795 A JP 22297795A JP H0968421 A JPH0968421 A JP H0968421A
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は表面粗度異常品の自
動検出方法及び装置に関し、特に摺動する軸部を有する
エンジンバルブやクランクシャフト等の量産加工ライン
に適用して有用なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for automatically detecting a product having abnormal surface roughness, and is particularly useful when applied to a mass production processing line for engine valves, crankshafts and the like having a sliding shaft. .
【０００２】[0002]
【従来の技術】本発明の要諦を明確にする為に、摺動す
る軸部を有する製品例としてエンジンバルブについて詳
述する。図９にエンジンバルブの外観を示す。同図にお
いて、１は本発明で課題となる軸部（ステムとも言
う）、２は傘部、３は吸排気ガスを気密するフェース
部、２４はバルブガイド（エンジン作動中に使用のため
破線表示）である。2. Description of the Related Art In order to clarify the point of the present invention, an engine valve will be described in detail as an example of a product having a sliding shaft portion. FIG. 9 shows the appearance of the engine valve. In the figure, 1 is a shaft portion (also referred to as a stem) which is a subject of the present invention, 2 is an umbrella portion, 3 is a face portion which seals intake and exhaust gases, 24 is a valve guide (indicated by a broken line for use during engine operation) ).
【０００３】このエンジンバルブの軸部１は、エンジン
作動中にバルブガイド４内を往復動（矢印Ｇ，Ｈ方向）
するため、高レベルの面粗度（Ｒｍａｘ≦３．２μｍ）
が必要となる。従ってエンジンバルブの量産ラインで
は、軸部１の研磨仕上げにセンタレス・グラインダー
（芯無し研削盤）が用いられる。The shaft portion 1 of the engine valve reciprocates in the valve guide 4 during engine operation (directions of arrows G and H).
Therefore, a high level of surface roughness (Rmax ≦ 3.2 μm)
Is required. Therefore, in a mass production line of engine valves, a centerless grinder (coreless grinder) is used for polishing the shaft 1.
【０００４】一方、このセンタレス・グラインダーによ
る軸部研磨時には、原因不明ではあるが、機械本体、砥
石の経時摩耗径、重量などの変化等による共振、或るい
は、異物粒子混入等により、時々、図１０に示すような
周期的な円周傷（以下“等ピッチ目”と称する）４が発
生する。図１１には軸部表面が正常な正常品の面粗度
と、軸部表面に等ピッチ目が生じた異常品の面粗度とを
示す。On the other hand, at the time of polishing the shaft portion by the centerless grinder, although the cause is unknown, resonance sometimes occurs due to changes in the machine body, the wear diameter of the grindstone over time, the weight, etc. Periodic circumferential scratches (hereinafter referred to as "equal pitch") 4 as shown in FIG. 10 occur. FIG. 11 shows the surface roughness of a normal product in which the shaft surface is normal and the surface roughness of an abnormal product in which the shaft surface has an equal pitch.
【０００５】軸部１に等ピッチ目が生じたエンジンバル
ブは、エンジン作動中、即ちバルブガイド４内で摺動中
に、異常音（シュルシュル音の騒音）を発生すると共
に、バルブガイド４を摩滅させ、精度、寿命の低下、シ
ート／フェース間の着座不良による気密低下、エンジン
出力低下、燃費ロス等を招く。The engine valve having the equal pitches on the shaft portion 1 generates an abnormal sound (noise of a shuffle sound) while the engine is operating, that is, while sliding in the valve guide 4, and the valve guide 4 is worn away. This leads to a decrease in accuracy and life, a reduction in airtightness due to poor seat / face seating, a reduction in engine output, and a loss in fuel consumption.
【０００６】そこで、このような等ピッチ目異常品の発
生及び流出を防止するため、従来は、エンジンバルブ量
産ラインの端末、或るいは出荷検査場に於て検査員を配
置し、この検査員による目視もしくはルーペ、面粗度計
を用いての検査を実施していた（図９参照）。Therefore, in order to prevent the occurrence and the outflow of such irregular pitch products, conventionally, an inspector is arranged at the terminal of the engine valve mass production line or at the shipping inspection site. The inspection was carried out by visual inspection using a loupe or a surface roughness meter (see FIG. 9).
【０００７】なお、正常品の面粗度はＲｍａｘ：３．２
Ｓ（３．２μｍ以下）であるのに対して、等ピッチ目異
常品は、山数２０山／ｍｍ以下（Ｐ≧５０μｍ、通常：
５０〜２００μｍ）、粗さＲｍｉｎ≧３．２Ｓ（通常：
５〜７０μｍ）である。The surface roughness of a normal product is Rmax: 3.2.
In contrast to S (3.2 μm or less), the product with abnormal pitches has 20 peaks / mm or less (P ≧ 50 μm, usually:
50 to 200 μm), roughness Rmin ≧ 3.2S (normal:
5 to 70 μm).
【０００８】[0008]
【発明が解決しようとする課題】しかしながら上記の如
くエンジンバルブ製造工程において検査員による目視も
しくはルーペ、面粗度計を用いての検査を実施した場
合、次の〜のような問題点があった。However, when the visual inspection by the inspector or the inspection using the loupe and the surface roughness meter is carried out in the engine valve manufacturing process as described above, there are the following problems. .
【０００９】 作業員の目視検査によるため、作業員
の個人差、経験差があり、定量的でない。 ルーペ、面粗度計を用いての全数検査は、現実に困
難である。従って等ピッチ目の粗い場合の発見率は高
く、細かい場合の発見率は低いという問題点がある。更
に、量産ライン端末での検査では研削液の軸部表面付着
により、また表面硬化処理（軸部の耐摩耗性向上のため
に窒化処理が施される）後では灰褐色変色等により、目
視による発見が困難となる。 上記，による発見洩れ率をゼロに出来ないた
め、等ピッチ目異常品流出のリスクが残る。 量産ライン端末や出荷検査場での等ピッチ目異常品
の発見が遅れると、エンジンバルブ（等ピッチ目異常
品）を研削しているセンタレス・グラインダーにフィー
ドバックがかからないために、等ピッチ目異常品の連続
発生を最小限に喰い止められない。特に、出荷検査場で
の発見は、経過時間が長びく為、ロスが大きくなる。 前記面粗度計による測定の場合には、図１２に示す
ように、微少円錐状のダイヤモンド接触子２５を用いる
ため、このダイヤモンド接触子２５の移動方向とエンジ
ンバルブの軸部１との方位、並びに高さレベル合せが、
治具を用いても極めて難しい。Since it is a visual inspection of the workers, there are individual differences and experience differences among the workers, and it is not quantitative. It is actually difficult to perform 100% inspection using a loupe and a surface roughness meter. Therefore, there is a problem that the discovery rate is high when the pitch is coarse, and the discovery rate is low when the pitch is fine. In addition, visually inspected by mass production line terminals due to adhesion of grinding fluid to the shaft surface, and ash brown discoloration after surface hardening treatment (nitriding treatment to improve wear resistance of the shaft portion). Difficult to find. Since the discovery omission rate cannot be reduced to zero due to the above, there is a risk of outflow of abnormal products at regular pitches. If the detection of abnormal pitch products with equal pitch is delayed at the mass production line terminal or shipping inspection site, feedback will not be applied to the centerless grinder that is grinding the engine valve (abnormal pitch products). It is impossible to prevent continuous occurrence to a minimum. In particular, discovery at the shipping inspection site causes a large loss because the elapsed time is long. In the case of the measurement by the surface roughness meter, as shown in FIG. 12, since the fine conical diamond contactor 25 is used, the moving direction of the diamond contactor 25 and the azimuth of the engine valve shaft portion 1, And height level adjustment,
It is extremely difficult to use a jig.
【００１０】このため、等ピッチ目異常品の検出手段と
して、次の〜の所与条件を満足させる必要がある。 軸部表面付着油分、水分及び軸部表面の変色、色む
ら等の外乱を受けないこと。 軸部表面の凹凸レベル（Ｐ：５０〜２００μｍ，
ｈ：５〜７０μｍ）に左右されないこと。 全数検査が可能であること。 量産ラインに適用する観点から、信号検出・判定迄
を数秒以内のサイクルタイムで完了できる迅速性を有す
ること、及び異常品検出時には即時に上流工程の設備
（センタレス・グラインダー）の稼働を停止するようフ
ィードバックできること。 軸部の断面形状（円形）への対応（円の中心への合
致性）及び軸部長手方向との合致性に困難を伴わないこ
と。 コンパクトかつシンプルな構造であって、耐久性に
富み、判定基準にズレを生じないこと。For this reason, it is necessary to satisfy the following given conditions (1) to (3) as means for detecting an abnormal product at regular pitches. Do not suffer from disturbances such as oil content, water content on the shaft surface, discoloration, and color unevenness on the shaft surface. Unevenness level of the shaft surface (P: 50-200 μm,
h: 5 to 70 μm). 100% inspection is possible. From the viewpoint of application to mass production lines, it must be able to complete signal detection / judgment within a cycle time within a few seconds, and when abnormal products are detected, immediately stop the operation of upstream process equipment (centerless grinder). Be able to give feedback. There should be no difficulty in adapting to the cross-sectional shape (circular shape) of the shaft (matching to the center of the circle) and matching with the longitudinal direction of the shaft. It has a compact and simple structure, is highly durable, and does not deviate from the criteria.
【００１１】従って本発明は上記の所与条件を満足しう
る表面粗度異常品の自動検出方法及び装置を提供するこ
とを課題とする。Therefore, it is an object of the present invention to provide a method and apparatus for automatically detecting an abnormal surface roughness product which can satisfy the above given conditions.
【００１２】[0012]
【課題を解決するための手段】上記の所与条件を満足し
うる表面凹凸（等ピッチ目等）検出方式としては、非接
触検出法と接触検出法とに大別される。Surface unevenness (equal pitches, etc.) detection methods that can satisfy the above given conditions are roughly classified into a non-contact detection method and a contact detection method.
【００１３】（１）非接触検出法 レーザ光、可視光等をエンジンバルブ軸部の中心線を狙
ってその表面に照射しながら軸部長手方向に移動させ、
刻々の反射光を受光し、表面の状況を増幅、解析、判定
する方式であるが、バルブ軸と照射光の中心線の微少ズ
レが生じても反射光の強度レベルが不安定となる。ま
た、レーザ光の場合には、バルブ表面付着油分、水分に
より反射光の強度レベルが大きく変動する。可視光の場
合には表面凹凸状況をコントラストで捕える為、変色や
色むらにより反射光の情報は外乱を受け易い。超音波を
利用した反射エコー方式も顕著な外乱を受け、予備テス
トの結果、実用化不可と判明した。(1) Non-contact detection method Aiming at the center line of the engine valve shaft portion while irradiating its surface with laser light, visible light, etc., the surface is moved in the longitudinal direction of the shaft portion,
This is a method of receiving the reflected light every moment and amplifying, analyzing and judging the condition of the surface, but the intensity level of the reflected light becomes unstable even if a slight deviation between the bulb axis and the center line of the irradiation light occurs. Further, in the case of laser light, the intensity level of reflected light fluctuates greatly due to the oil content and moisture adhering to the valve surface. In the case of visible light, since the surface irregularities are captured by contrast, the information of reflected light is easily disturbed due to discoloration or color unevenness. The reflection echo method using ultrasonic waves also suffered significant disturbance, and as a result of preliminary tests, it was found that it could not be put to practical use.
【００１４】（２）接触検出法 発明者は、等ピッチ目を生じた軸部の凹凸面に、弾性の
大きい金属薄板や金属細線を当接して等ピッチ目の筋に
交叉する方向に移動させると独自の振動音を発生するこ
とに気付いた。即ち、移動させる速度を一定にすると、
等ピッチ目のピッチが粗い（Ｐが大きい）程、低い音が
発生し、凹凸が激しい（ｈが大きい）程、強い音を発生
する。(2) Contact Detection Method The inventor abuts a thin elastic metal plate or a thin metal wire having a large elasticity on the uneven surface of the shaft portion having the even pitches and moves the thin plate or the metal wire in a direction crossing the streaks of the even pitches. And noticed that it generated its own vibration sound. That is, if the moving speed is constant,
The coarser the pitch of the equal pitch (the larger P is), the lower the sound is generated, and the more the irregularities are large (the larger h), the stronger the sound is generated.
【００１５】そこで後者の接触検出法に基づき、以下の
解決手段を採ることにした。Therefore, based on the latter contact detection method, the following solving means is adopted.
【００１６】即ち、上記課題を解決する第１の方法は、
接触式検出子を被検体表面に点或るいは線接触させると
共に被検体表面の凹凸部と交叉する方向に一定速度で移
動させ、このときに被検体表面の凹凸部で生起する前記
接触式検出子の振動或るいは音響を検出し、この検出信
号が所定値を超過した場合には当該被検体を不良品と判
定することを特徴とする。That is, the first method for solving the above problems is as follows.
The contact-type detector is brought into point or line contact with the surface of the subject and is moved at a constant speed in a direction intersecting with the irregularities on the surface of the subject, and the contact-type detection that occurs at the irregularities on the surface of the subject at this time Vibration or sound of the child is detected, and when the detection signal exceeds a predetermined value, the subject is determined to be a defective product.
【００１７】また第２の方法は、上記第１の方法におい
て、接触式検出子の振動或るいは音響の検出信号が所定
値を超過した場合には異常報知信号を上流工程の研削盤
制御部へ送信してこの研削盤の駆動モータを停止させる
ことを特徴とする。The second method is the same as the first method, but when the vibration or acoustic detection signal of the contact type detector exceeds a predetermined value, an abnormality notification signal is sent to the grinder control unit in the upstream process. And the drive motor of this grinder is stopped.
【００１８】また上記課題を解決する第１の装置は、接
触式検出子と、この接触式検出子を被検体表面方向に移
動して被検体表面に点或るいは線接触させると共に被検
体表面の凹凸部と交叉する方向に一定速度で移動させる
移動手段と、被検体表面の凹凸部で生起する前記接触式
検出子の振動或るいは音響を検出する検出手段と、この
検出手段の検出信号が所定値を超過した場合には当該被
検体を不良品と判定する判定手段とを有することを特徴
とする。A first device for solving the above-mentioned problems is a contact type detector, and the contact type detector is moved in the direction of the surface of the object to be brought into point or line contact with the surface of the object and the surface of the object to be examined. Moving means for moving at a constant speed in a direction intersecting with the uneven portion of the, the detection means for detecting the vibration or sound of the contact type detector generated in the uneven portion of the subject surface, and the detection signal of this detecting means When the value exceeds a predetermined value, the determination unit determines that the subject is a defective product.
【００１９】また第２の装置は、上記第１の装置におい
て、検出手段の検出信号が所定値を超過した場合には異
常報知信号を上流工程の研削盤制御部へ送信してこの研
削盤の駆動モータを停止させる手段を有することを特徴
とする。The second apparatus is the same as the first apparatus, except that when the detection signal of the detecting means exceeds a predetermined value, an abnormality notification signal is transmitted to the grinding machine control unit in the upstream process to send a signal to the grinding machine. It is characterized in that it has means for stopping the drive motor.
【００２０】従って上記第１の方法及び装置によれば、
例えばエンジンバルブの検査を行う場合、接触式検出子
をエンジンバルブの軸部表面に点或るいは線接触させる
と共に等ピッチ目筋方向に交叉する方向（軸部長手方
向）に一定速度で移動させる。そしてこのとき、軸部に
等ピッチ目が生起していれば、この等ピッチ目の生起し
ている部分において接触式検出子が大きく振動し大きな
音響を生起する。その結果、この振動或るいは音響の検
出信号が所定値を超過し、当該エンジンバルブは不良
品、即ち表面粗度異常品であると判定する。従って、こ
の判定結果に基づき除外手段によって当該不良品を除外
することができる。Therefore, according to the above first method and apparatus,
For example, when inspecting an engine valve, the contact type detector is brought into point or line contact with the surface of the engine valve shaft portion and is moved at a constant speed in the direction intersecting the equal pitch line direction (the shaft portion longitudinal direction). . At this time, if equidistant pitches are generated on the shaft portion, the contact type detector vibrates greatly in the portion where the uniform pitches occur, and a large sound is generated. As a result, the vibration or sound detection signal exceeds a predetermined value, and it is determined that the engine valve is a defective product, that is, an abnormal surface roughness product. Therefore, the defective product can be excluded by the excluding means based on the determination result.
【００２１】また上記第２の方法及び装置によれば、接
触式検出子の振動或るいは音響の検出信号が所定値を超
過すると、異常報知信号を上流工程の研削盤制御部へ送
信する。その結果、この研削盤の駆動モータが停止さ
れ、製品の製造が停止される。Further, according to the second method and apparatus, when the vibration or acoustic detection signal of the contact type detector exceeds a predetermined value, an abnormality notification signal is transmitted to the grinder control unit in the upstream process. As a result, the drive motor of this grinder is stopped, and the production of the product is stopped.
【００２２】[0022]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づき詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００２３】〈第１実施例〉本発明の第１実施例を図
１、図５、図６、図７及び図８に基づいて説明する。な
お、図１は本第１の実施例に係る表面粗度異常品の自動
検出装置の要部構成を示す説明図であって、（ａ）には
正面からみた構成を示し、（ｂ）には側面（（ａ）のＣ
−Ｃ線矢視）からみた構成を示す。また図５は本第１の
実施例に係る表面粗度異常品の自動検出装置によってエ
ンジンバルブ軸部の表面凹凸検出を行う手順を示す説明
図、図６は本第１実施例に係る表面粗度異常品の自動検
出装置の構成を示す斜視図、図７及び図８は本第１実施
例に係る表面粗度異常品の自動検出装置によってエンジ
ンバルブ軸部の表面凹凸検出を行うときの状態を示す正
面図及び側面図である。<First Embodiment> A first embodiment of the present invention will be described with reference to FIGS. 1, 5, 6, 7 and 8. 1A and 1B are explanatory views showing the main configuration of an automatic detection apparatus for an abnormal surface roughness product according to the first embodiment, in which FIG. 1A shows the configuration as viewed from the front and FIG. Is the side (C in (a)
The structure seen from the arrow C) is shown. Further, FIG. 5 is an explanatory diagram showing a procedure for detecting surface irregularities of the engine valve shaft portion by the automatic detection apparatus for abnormal surface roughness according to the first embodiment, and FIG. 6 is a surface roughness according to the first embodiment. 7 and 8 are perspective views showing the configuration of an automatic detection device for abnormal surface roughness products, and FIGS. 7 and 8 show states when detecting the surface irregularities of the engine valve shaft portion by the automatic detection device for abnormal surface roughness products according to the first embodiment. It is a front view and a side view showing.
【００２４】図１に示すように、本第１実施例に係る自
動検出装置は、接触式検出子として高硬度且つ塑性変形
しない高弾性の細径棒７（超硬製１．０OD×６０L ｍ
ｍ）を用い、この細径棒７の一端に圧電素子で構成され
る振動センサ−１４を接続してなるものである。As shown in FIG. 1, the automatic detection device according to the first embodiment is a contact type detector having a high hardness and a high elasticity thin rod 7 which is not plastically deformed (carbide 1.0 OD × 60). L m
m), a vibration sensor 14 composed of a piezoelectric element is connected to one end of the thin rod 7.
【００２５】詳述すると、図６に示すように、直立する
エンジンバルブ（図７、図８参照）の軸部長手方向（即
ち等ピッチ目筋方向に交叉する方向）に沿って上下動す
る昇降本体１５と、シリンダーチャック１６を介して一
定ストローク幅で近接・離散する１対のアーム１８ａ，
１８ｂとを有している。そして、一方のアーム１８ａの
先端にはエンジンバルブの軸部表面に沿って転動する押
えローラ１７が設けられており、他方のアーム１８ｂに
は前述の振動センサー１４（例えばキーエンス株式会社
製、モデルＧＨ−５１３）が搭載され、この振動センサ
ー１４の端部には前述の如く細径棒７が取付けてある。More specifically, as shown in FIG. 6, ascending / descending ascending / descending along the longitudinal direction of the shaft of the engine valve (see FIGS. 7 and 8) standing upright (that is, the direction intersecting the equal pitch line direction). A pair of arms 18a, which approach and disperse with a constant stroke width via the main body 15 and the cylinder chuck 16,
18b and. A pressing roller 17 that rolls along the surface of the shaft portion of the engine valve is provided at the tip of one arm 18a, and the above-mentioned vibration sensor 14 (for example, model manufactured by KEYENCE CORPORATION, model) is provided on the other arm 18b. GH-513) is mounted, and the thin rod 7 is attached to the end of the vibration sensor 14 as described above.
【００２６】次に上記構成の自動検出装置によってエン
ジンバルブ軸部の表面凹凸検出を行う場合の動作を図
５、及び図７、図８に基づいて説明する。Next, the operation in the case of detecting the surface unevenness of the engine valve shaft portion by the automatic detecting device having the above-mentioned configuration will be described with reference to FIGS. 5, 7, and 8.
【００２７】ここではエンジンバルブの１例としてＪＩ
ＳＧ４３１１で規定された耐熱鋼製の吸気弁（ＳＵＨ−
１１）及び排気弁（ＳＵＨ−３５）を用いた。また軸径
５．５φ〜８．０φｍｍ、全長８０〜１２０L ｍｍのエ
ンジンバルブを量産する機械加工ライン（エンジンバル
ブの軸部及び傘部を切削、粗研、精研する研削盤８台程
度で構成される）端末の連続自動検査装置の１ステーシ
ョンに本自動検査装置を取付けた。連続自動検査装置に
は他にリーク検査、軸径検査、全長検査の３ステーショ
ンを有する。かかる配置関係に於て、逐次所定の検査ス
テーションで傘部３を下にしてエンジンバルブを直立さ
せ、傘部端面から約３０〜約７０ｍｍの高さレベル迄を
検査領域として検査する。この検査領域は特定するもの
ではないが、通常、等ピッチ目は軸部全長に及ぶため部
分領域の検査で十分である。Here, JI is used as an example of an engine valve.
Intake valve made of heat-resistant steel specified by SG4311 (SUH-
11) and an exhaust valve (SUH-35) were used. In addition, a machining line that mass-produces engine valves with a shaft diameter of 5.5 to 8.0 mm and a total length of 80 to 120 L mm (with about 8 grinding machines for cutting, rough-polishing, and precision-polishing the engine valve shaft and umbrella). This automatic inspection device was attached to one station of the continuous automatic inspection device of the terminal (configured). The continuous automatic inspection system also has 3 stations for leak inspection, shaft diameter inspection, and full length inspection. In this arrangement, the engine valve is placed upright at a predetermined inspection station with the umbrella portion 3 facing downward, and the inspection is performed from the end surface of the umbrella portion to a height level of about 30 to about 70 mm. Although this inspection region is not specified, the inspection of partial regions is usually sufficient because the equi-pitch line extends over the entire length of the shaft portion.
【００２８】従って、図５に示すように、直立したエン
ジンバルブの軸部１を左右から押えローラ１７と細径棒
７とで挟むようにして軸部表面に細径棒７を一定荷重で
接触させ、この状態で昇降本体１５と共に細径棒７を図
中のａ点（傘部端面から約３０ｍｍ）からｂ点（傘部端
面から約７０ｍｍ）まで一定速度ｖで上昇（上昇速度：
２ｍ／分）させ、ｂ点を過ぎた時点で開放する。Therefore, as shown in FIG. 5, the shaft 1 of the upright engine valve is sandwiched from the left and right by the pressing roller 17 and the bar 7, and the shaft 7 is brought into contact with the shaft surface with a constant load. In this state, the small-diameter rod 7 together with the elevating / lowering body 15 is raised at a constant speed v from a point (about 30 mm from the end surface of the umbrella portion) to a point b (about 70 mm from the end surface of the umbrella portion) in the figure (raising speed:
2 m / min) and release when point b is passed.
【００２９】そしてこのとき、エンジンバルブの軸部表
面に等ピッチ目が生じていると、当該部分において細径
棒７が大きく振動し、振動センサー１４ではこの細径棒
７の機械的振動を電気信号に変換し増幅する。即ち、等
ピッチ目のピッチＰ及び凹凸の高さｈに対応した電気信
号の波形を得ることができる。そして、この増幅された
電気信号が所定値を超えたときには当該エンジンバルブ
が不良品、即ち表面粗度異常品であると判定する。例え
ば等ピッチ目の管理限界値として、ｈ＝３．０μｍに相
当する起電力値（ｍＶ）、Ｐ＝５０μｍに相当する時間
値（ｍｓｅｃ）を設定し、この設定値と前記電気信号と
を比較することによって良品と不良品とを弁別すること
ができる。At this time, if equal pitches are generated on the surface of the shaft portion of the engine valve, the small diameter rod 7 vibrates greatly in the portion, and the vibration sensor 14 causes the mechanical vibration of the small diameter rod 7 to be electrically generated. Convert to signal and amplify. That is, it is possible to obtain the waveform of the electric signal corresponding to the pitch P at the equal pitch and the height h of the unevenness. When the amplified electric signal exceeds a predetermined value, it is determined that the engine valve is a defective product, that is, a surface roughness abnormal product. For example, an electromotive force value (mV) corresponding to h = 3.0 μm and a time value (msec) corresponding to P = 50 μm are set as control limit values at equal pitches, and the set value and the electric signal are compared. By doing so, a good product and a defective product can be discriminated.
【００３０】不良品と判定した場合には、当該エンジン
バルブを図８の下部に示すプッシャー１９を前進させる
ことにより前方へ付き落として除外し次工程への搬送を
阻止して、良品と区別する。つまり、不良品は図８中の
左側（プッシャー１９の前方）へ付き落とされ、良品は
図８の紙面と直交する方向（プッシャー１９の作動方向
と直交する方向）に搬送される。また上記の如く電気信
号が所定値を超えたときには異常報知信号を上流機械加
工ライン中の該当研削盤の制御ユニットへ送信し、その
研削盤の駆動モータを停止させる。When it is determined that the engine valve is defective, the engine valve is removed by being pushed forward by pushing the pusher 19 shown in the lower portion of FIG. 8 to prevent the engine valve from being conveyed to the next process, so that the engine valve is distinguished from the non-defective product. . That is, the defective product is dropped to the left side (front of the pusher 19) in FIG. 8, and the good product is conveyed in a direction orthogonal to the paper surface of FIG. 8 (direction orthogonal to the operation direction of the pusher 19). When the electric signal exceeds the predetermined value as described above, an abnormality notification signal is transmitted to the control unit of the corresponding grinder in the upstream machining line, and the drive motor of the grinder is stopped.
【００３１】〈第２実施例〉本発明の第２実施例を図２
及び図６に基づいて説明する。なお図２は本第２実施例
に係る表面粗度異常品の自動検出装置の要部構成を示す
説明図であって、（ａ）には正面からみた構成を示し、
（ｂ）には側面（（ａ）のＢ−Ｂ線矢視）からみた構成
を示す。<Second Embodiment> A second embodiment of the present invention is shown in FIG.
And FIG. 6 will be described. Note that FIG. 2 is an explanatory diagram showing a main configuration of an automatic detection apparatus for abnormal surface roughness products according to the second embodiment, in which (a) shows the configuration seen from the front,
(B) shows the configuration as seen from the side surface (viewed from the arrow BB of (a)).
【００３２】本第１実施例に係る自動検査装置は、接触
式検出子として図６に示した細径棒７に代えて図２に示
す高硬度且つ塑性変形しない高弾性の薄板ブレード６
（超硬製１．２t ×１５．０w ×６０L ｍｍ，刃先角：
３０°）を用い、この薄板ブレード６の一端を振動セン
サー１４の一端に取付けたものであり、薄板ブレード６
の刃先を軸部表面に接触させて軸部長手方向に一定速度
ｖで移動させることによって薄板ブレード６に機械的振
動を発生させる。その他の構成は上記第１実施例と全く
同様である。また動作も上記第１実施例と同様であるた
めここでの説明は省略する。In the automatic inspection apparatus according to the first embodiment, the thin blade 7 having high hardness and plastic deformation shown in FIG. 2 is used instead of the thin rod 7 shown in FIG. 6 as a contact type detector.
(Carbide 1.2 t × 15.0 w × 60 L mm, cutting edge angle:
30 °) and one end of the thin blade 6 is attached to one end of the vibration sensor 14.
The thin blade 6 is subjected to mechanical vibration by bringing the blade edge of the blade into contact with the surface of the shaft and moving the blade in the longitudinal direction of the shaft at a constant speed v. The other structure is exactly the same as that of the first embodiment. The operation is also similar to that of the first embodiment, and the description thereof is omitted here.
【００３３】なお、上記第１実施例において用いた細径
棒７及び本第２実施例で用いた薄板ブレード６は、何れ
も、焼入硬化されたエンジンバルブの軸部１との摺動に
より擦過摩耗することとなるが、所定の摩耗量、即ち検
査したエンジンバルブの本数が所定本数（例えば３万本
／回）に到達時点で細径棒７及び薄板ブレード６の全長
を所定長（通常約３ｍｍ）だけ短くして振動センサー１
４に付け換えることで多数回使用することが出来る。The thin rod 7 used in the first embodiment and the thin blade 6 used in the second embodiment are both slidable on the shaft portion 1 of the engine valve which has been quench-hardened. Although it will be abraded and worn, when the predetermined wear amount, that is, the number of inspected engine valves reaches a predetermined number (for example, 30,000 / time), the entire length of the thin rod 7 and the thin blade 6 is set to a predetermined length (normally). Vibration sensor 1 shortened by about 3 mm)
It can be used many times by changing to 4.
【００３４】また、細径棒７及び薄板ブレード６の側面
を軸部１の表面に当接させるので、円と接線との関係に
より、エンジンバルブの検査ステーション設置誤差、傾
き、軸径の大小の影響を極て受け難い。Further, since the side surfaces of the thin rod 7 and the thin blade 6 are brought into contact with the surface of the shaft portion 1, the error in setting the inspection station of the engine valve, the inclination, and the size of the shaft diameter may vary depending on the relationship between the circle and the tangent line. Hardly affected.
【００３５】〈第３実施例〉本発明の第３実施例を図３
及び図６に基づいて説明する。なお図３は本第３実施例
に係る表面粗度異常品の自動検出装置の要部構成を示す
説明図であって、（ａ）には正面からみた構成を示し、
（ｂ）には側面（（ａ）のＡ−Ａ線矢視断面）からみた
構成を示す。<Third Embodiment> A third embodiment of the present invention is shown in FIG.
And FIG. 6 will be described. Note that FIG. 3 is an explanatory view showing a main configuration of an automatic detection apparatus for an abnormal surface roughness product according to the third embodiment, in which (a) shows the configuration as viewed from the front,
(B) shows a configuration as viewed from the side surface (a cross section taken along line AA of (a)).
【００３６】本第３実施例に係る自動検査装置は、接触
式検出子として図６に示した細径棒７に代えて図３に示
す高硬度且つ塑性変形しない高弾性の触針５（超硬製、
５．０ ×３０L ｍｍ，先端ダイヤモンド、先端円錐頂
角：１２０°）を用い、この触針５の基端側を振動セン
サー１４の一端に取付けたものであり、触針５の先端を
一定の荷重でエンジンバルブの軸部表面に接触させて軸
部長手方向に一定速度ｖで移動させることによって触針
５に機械的振動を発生させる。その他の構成は上記第１
実施例と全く同様である。また動作も上記第１実施例と
同様であるためここでの説明は省略する。In the automatic inspection apparatus according to the third embodiment, the contact point detector 5 is replaced by the thin rod 7 shown in FIG. Hard,
5.0 × 30 L mm, tip diamond, tip cone apex angle: 120 °) is used, and the base end side of the stylus 5 is attached to one end of the vibration sensor 14, and the tip of the stylus 5 is fixed. A mechanical vibration is generated in the stylus 5 by contacting the shaft surface of the engine valve with a load of and moving the shaft 5 in the longitudinal direction of the shaft at a constant speed v. Other configurations are as described in the first section above.
This is exactly the same as the embodiment. The operation is also similar to that of the first embodiment, and the description thereof is omitted here.
【００３７】なお、本第３実施例に係る自動検査装置に
おいては、図３（ｂ）に示す如く、エンジンバルブの軸
部１と昇降本体１５との間に相対傾斜角θが生じた場合
や、検査ステーション所定位置へのエンジンバルブ設置
誤差が生じた場合には、エンジンバルブの軸径が細い
（５．５φ〜８．０φｍｍ）故に、バルブ軸中心線に沿
った触針５先端のトラッキング（追従）が困難となり、
測定振動波形に外乱を生じるという短所がある。しかし
小径軸のエンジンバルブ以外の曲率半径の大きい曲面
や、平面の表面凹凸検出に対しては、第１実施例や第２
実施例の如く細径棒７や薄板ブレード６を用いた方式よ
りも有利である。In the automatic inspection apparatus according to the third embodiment, as shown in FIG. 3B, when a relative inclination angle θ is generated between the shaft portion 1 of the engine valve and the elevating body 15, or If there is an error in installing the engine valve at a predetermined position in the inspection station, the shaft diameter of the engine valve is thin (5.5φ to 8.0φmm), so tracking of the tip of the stylus 5 along the valve axis center line ( Tracking) becomes difficult,
There is a disadvantage that the measured vibration waveform causes disturbance. However, for detecting a curved surface having a large radius of curvature other than an engine valve having a small diameter axis or a flat surface unevenness, the first embodiment or the second embodiment
This is more advantageous than the method using the thin rod 7 or the thin blade 6 as in the embodiment.
【００３８】〈第４実施例〉本発明の第４実施例を図４
及び図６に基づいて説明する。なお図４は本第４実施例
に係る表面粗度異常品の自動検出装置の要部構成を示す
平面図である。<Fourth Embodiment> A fourth embodiment of the present invention is shown in FIG.
And FIG. 6 will be described. Note that FIG. 4 is a plan view showing a main configuration of an automatic detection apparatus for abnormal surface roughness products according to the fourth embodiment.
【００３９】本第４実施例に係る自動検出装置は、図６
における昇降本体１５の下部に、図４に示す構造のもの
を、その取付部２０の取付穴２１を介して取付けたもの
である。図４に示すように、弓部本体９と取付部２０と
は往復動するシリンダー２２及びガイドレール２３を介
して離合近接できる構造となっている。弓部本体９の両
端には、１対の供給リール１２と巻取ロール１３及び補
ロール１０（２個）を設け、更には張弦機構１１を介し
て、接触式検出子である０．２φのナイロン線（ピアノ
線等の金属線でも可。以下“弦線”という）８を張力１
５ｋｇを付与して張りめぐらしている。また補ロール１
０の回転軸に振動センサー１４を直結した。The automatic detection device according to the fourth embodiment is shown in FIG.
4 is attached to the lower part of the elevating / lowering body 15 through the mounting hole 21 of the mounting portion 20 of the structure shown in FIG. As shown in FIG. 4, the bow body 9 and the mounting portion 20 are structured such that they can be separated and brought close to each other via a reciprocating cylinder 22 and a guide rail 23. A pair of supply reels 12, a winding roll 13 and a supplementary roll 10 (two pieces) are provided at both ends of the bow body 9, and 0.2 [phi] which is a contact type detector through a stringing mechanism 11. Tension 1 of nylon wire (may be a metal wire such as piano wire, etc., hereinafter referred to as "string wire")
5kg is applied and it is stretched. Supplementary roll 1
The vibration sensor 14 was directly connected to the 0 rotation axis.
【００４０】従って本第４実施例に係る自動検出装置に
よれば、上記第１実施例と同様、昇降本体１５とシリン
ダー２２及びガイドレール２３とにより、弦線８を軸部
１の表面に一定の荷重で当接させ、２ｍ／ｓｅｃの上昇
速度で軸部長手方向（図４の紙面に直交する方向）に移
動させることによって、弦線８に機械的な振動を発生さ
せ、この機械的振動を電気信号に変換して、良品、不良
品の弁別を行う。Therefore, according to the automatic detector of the fourth embodiment, the chord line 8 is fixed on the surface of the shaft portion 1 by the elevating body 15, the cylinder 22 and the guide rail 23 as in the first embodiment. Of the chord line 8 is caused to abut on the chord line 8 in the longitudinal direction of the shaft portion (direction orthogonal to the paper surface of FIG. 4) at an ascending speed of 2 m / sec. Is converted into an electric signal to discriminate between a good product and a defective product.
【００４１】本第４実施例では図４に示す如く、弦線８
が、軸部表面と広範囲に線接触（接弦長：ＥＥ´）する
ため、正確な等ピッチ目、面粗さの情報を得ることがで
きる。In the fourth embodiment, as shown in FIG.
However, since it makes a line contact (tangent length: EE ') with the surface of the shaft in a wide range, it is possible to obtain accurate information on equal pitches and surface roughness.
【００４２】また、量産工程であるため、多数本のエン
ジンバルブの軸部表面に対して弦線８が摺動することに
より、この弦線８に摩耗を生じることとなるが、所定本
数のエンジンバルブを検査後、逐次、自動的に弦線を移
動・巻取ることにより、交換ロス時間を大幅に低減で
き、連続生産に有利である。Further, since the mass production process is performed, the chord lines 8 slide on the surfaces of the shafts of many engine valves, and the chord lines 8 are worn. After the valve is inspected, the chord wire is automatically moved and wound one after another, so that the replacement loss time can be greatly reduced, which is advantageous for continuous production.
【００４３】以上のことから、上記第１、第２、第３及
び第４実施例によれば、以下のような効果を奏する。From the above, according to the first, second, third and fourth embodiments, the following effects can be obtained.
【００４４】（１）全数インライン検査が可能となり、
定量的・安定的な検査結果が得られ、この検査結果に基
づいて不良品を除外できるため、不良品の流出を１００
％阻止できる。（従来の目視検査時の個人差、経験差に
よるバラツキ、流出がなくなる。） （２）エンジンバルブの軸部表面を接触式検出子、即ち
細径棒７、薄板ブレード６、触針５又は弦線８で摺動さ
せて機械的振動を発生させるため、軸部表面付着水分、
油分や、変色、色むら等による外乱を受けない。 （３）機械的振動を圧電素子で構成された振動センサー
１４により電気信号に変換し、この電気信号が所定値を
超えたら上流工程の研削盤制御ユニットへ異常報知信号
を送信して不良品を生じた量産ラインの所定研削盤を停
止できるので、不良品の連続発生を阻止することができ
る。 （４）接触式検出子として細径棒７、薄板ブレード６ま
たは弦線８を用いた場合には、軸部表面への追従性（軸
方向のトラッキング性、軸径の大小）が極て高い。 （５）接触式検出子には超硬等の硬質材、もしくは、耐
摩耗性にすぐれたナイロン等の有機繊維を用いるので、
本来耐久性に優れているが、軸部１との当接位置を移動
して使用出来るため、生産ラインの停止ロスを激減でき
る。(1) Inline inspection is possible for all products,
Quantitative and stable inspection results can be obtained, and defective products can be excluded based on this inspection result.
% Can be stopped. (Variations and outflows due to individual differences and experience differences during conventional visual inspection are eliminated.) (2) The surface of the shaft portion of the engine valve is a contact type detector, that is, a thin rod 7, a thin blade 6, a stylus 5 or a string. Since mechanical vibration is generated by sliding along the line 8, moisture adhering to the shaft surface,
No disturbance due to oil content, discoloration, color unevenness, etc. (3) Mechanical vibration is converted into an electric signal by the vibration sensor 14 composed of a piezoelectric element, and when the electric signal exceeds a predetermined value, an abnormality notification signal is transmitted to the grinder control unit in the upstream process to detect a defective product. Since the predetermined grinding machine of the produced mass production line can be stopped, continuous production of defective products can be prevented. (4) When the thin rod 7, the thin blade 6 or the chord wire 8 is used as the contact type detector, the followability to the shaft surface (tracking ability in the axial direction, size of the shaft diameter) is extremely high. . (5) Since a hard material such as cemented carbide or an organic fiber such as nylon having excellent wear resistance is used for the contact type detector,
Although it is originally excellent in durability, it can be used by moving the contact position with the shaft portion 1, so the stop loss of the production line can be drastically reduced.
【００４５】なお上記の実施例では被検体としてエンジ
ンバルブを例に挙げ、その軸部表面の等ピッチ目を自動
検査する場合について述べたが、本発明はエンジンバル
ブやクランクシャフト等の軸物に限らず、平面切削・研
削盤にて加工送り時に生じる２次元面上の平行筋や旋削
盤等により生じるディスク上の潮状筋、更には３次元切
削・研削盤で成形された例えばタービン翼の３次元表面
上の加工筋の検査、判定、フィードバックにも有効に適
用できる。In the above embodiment, an engine valve is taken as an example of the object to be inspected, and the case of automatically inspecting the shaft surface for equal pitches is described. However, the present invention is not limited to an engine valve, a crankshaft, or other shaft objects. First, parallel streaks on a two-dimensional surface that occur during machining feed on a plane cutting / grinding machine, tidal streaks on a disk that are generated by a lathe, and further, for example, a turbine blade 3 formed by a three-dimensional cutting / grinding machine. It can also be effectively applied to inspection, judgment, and feedback of machined lines on a dimensional surface.
【００４６】また上記実施例では圧電素子で構成された
振動センサー１４によって接触式検出子の機械的振動を
電気信号に変換したが、これに限定するものではなく、
接触式検出子の機械的振動を電気信号に変換できるセン
サーであればよい。Further, in the above embodiment, the mechanical vibration of the contact type detector is converted into the electric signal by the vibration sensor 14 composed of the piezoelectric element, but the invention is not limited to this.
Any sensor can be used as long as it can convert the mechanical vibration of the contact type detector into an electric signal.
【００４７】また振動センサー１４等によって接触式検
出子の機械的振動を検出（電気信号に変換）するのでな
く、この機械的振動によって生起する音響を検出し、こ
の検出信号が所定の音圧レベルを超えたときに当該被検
体（エンジンバルブ等）を不良品と判定し、フィードバ
ックするようにしてもよい。Further, the mechanical vibration of the contact type detector is not detected (converted into an electric signal) by the vibration sensor 14 or the like, but the sound generated by this mechanical vibration is detected, and this detected signal is at a predetermined sound pressure level. When the value exceeds the limit, the subject (engine valve or the like) may be determined as a defective product and may be fed back.
【００４８】[0048]
【発明の効果】以上発明の実施の形態と共に具体的に説
明したように本発明によれば、以下のような効果が得ら
れる。 （１）全数インライン検査が可能となり、定量的・安定
的な検査結果が得られ、この検査結果に基づいて不良品
を除外できるため、不良品の流出を１００％阻止でき
る。（従来の目視検査時の個人差、経験差によるバラツ
キ、流出がなくなる。） （２）被検体表面を接触式検出子で摺動させて機械的振
動を発生させるため、被検体表面付着水分、油分や、変
色、色むら等による外乱を受けない。 （３）接触式検出子の振動或るいは音響の検出信号が所
定値を超えたら上流工程の研削盤制御部へ異常報知信号
を送信してこの不良品を生じた研削盤を停止できるの
で、不良品の連続発生を阻止することができる。 （４）接触式検出子として細径棒、薄板ブレード又は弦
線を用いた場合には、被検体表面への追従性（軸方向の
トラッキング性、軸径の大小）が極て高い。 （５）接触式検出子として超硬等の硬質材、もしくは耐
摩耗性にすぐれたナイロン等の有機繊維を用いた場合に
は、本来耐久性に優れているが、被検体との当接位置を
移動して使用出来るため生産ラインの停止ロスを激減で
きる。According to the present invention as described in detail with the embodiments of the present invention, the following effects can be obtained. (1) In-line inspection is possible for all products, quantitative and stable inspection results are obtained, and defective products can be excluded based on the inspection results, so that outflow of defective products can be completely prevented. (Variations and outflows due to individual differences and experience differences during conventional visual inspection are eliminated.) (2) Since mechanical vibration is generated by sliding the surface of the sample with a contact type detector, moisture adhering to the sample surface, No disturbance due to oil content, discoloration, color unevenness, etc. (3) When the vibration or acoustic detection signal of the contact type detector exceeds a predetermined value, an abnormality notification signal can be transmitted to the grinding machine control unit in the upstream process to stop the grinding machine having this defective product. It is possible to prevent continuous generation of defective products. (4) When a thin rod, a thin blade, or a chord wire is used as the contact-type detector, the ability to follow the surface of the subject (tracking performance in the axial direction, size of the shaft diameter) is extremely high. (5) When a hard material such as cemented carbide or an organic fiber such as nylon having excellent wear resistance is used as the contact type detector, it is originally excellent in durability, but the contact position with the subject Since it can be moved and used, production line stop loss can be drastically reduced.
【図１】第１実施例に係る表面粗度異常品の自動検出装
置の要部構成を示す説明図であって、（ａ）には正面か
らみた構成を示し、（ｂ）には側面（（ａ）のＣ−Ｃ線
矢視断面）からみた構成を示す。FIG. 1 is an explanatory view showing a main configuration of an automatic detection device for abnormal surface roughness products according to a first embodiment, in which (a) shows the configuration as viewed from the front and (b) shows a side surface ( The structure seen from the CC sectional view of (a) is shown.
【図２】第２実施例に係る表面粗度異常品の自動検出装
置の要部構成を示す説明図であって、（ａ）には正面か
らみた構成を示し、（ｂ）には側面（（ａ）のＢ−Ｂ線
矢視）からみた構成を示す。2A and 2B are explanatory views showing a main configuration of an automatic detection apparatus for abnormal surface roughness products according to a second embodiment, in which FIG. 2A shows the configuration as viewed from the front and FIG. The structure seen from the BB line arrow of (a) is shown.
【図３】第３実施例に係る表面粗度異常品の自動検出装
置の要部構成を示す説明図であって、（ａ）には正面か
らみた構成を示し、（ｂ）には側面（（ａ）のＡ−Ａ線
矢視）からみた構成を示す。3A and 3B are explanatory views showing a main configuration of an automatic detection apparatus for abnormal surface roughness products according to a third embodiment, in which FIG. 3A shows the configuration as viewed from the front and FIG. The structure seen from the AA line arrow of (a) is shown.
【図４】第４実施例に係る表面粗度異常品の自動検出装
置の要部構成を示す平面図である。FIG. 4 is a plan view showing a main configuration of an automatic detection apparatus for abnormal surface roughness products according to a fourth embodiment.
【図５】第１実施例に係る表面粗度異常品の自動検出装
置によってエンジンバルブ軸部の表面凹凸検出を行う手
順を示す説明図である。FIG. 5 is an explanatory diagram showing a procedure for detecting surface unevenness of the engine valve shaft portion by the automatic detection apparatus for abnormal surface roughness according to the first embodiment.
【図６】第１実施例に係る表面粗度異常品の自動検出装
置の構成を示す斜視図である。FIG. 6 is a perspective view showing the configuration of an automatic detection apparatus for abnormal surface roughness products according to the first embodiment.
【図７】第１実施例に係る表面粗度異常品の自動検出装
置によってエンジンバルブ軸部の表面凹凸検出を行うと
きの状態を示す正面図である。FIG. 7 is a front view showing a state when surface irregularities of the engine valve shaft portion are detected by the automatic surface roughness detection device according to the first embodiment.
【図８】第１実施例に係る表面粗度異常品の自動検出装
置によってエンジンバルブ軸部の表面凹凸検出を行うと
きの状態を示す側面図である。FIG. 8 is a side view showing a state when surface irregularity detection of the engine valve shaft portion is performed by the automatic surface roughness detection device according to the first embodiment.
【図９】エンジンバルブの外観と目視検査のイメージを
示す説明図である。FIG. 9 is an explanatory diagram showing an appearance of an engine valve and an image of visual inspection.
【図１０】エンジンバルブ軸部表面の異常凹凸（等ピッ
チ目）の状況の概要を示す説明図である。FIG. 10 is an explanatory diagram showing an outline of a state of abnormal irregularities (equal pitch) on the surface of the engine valve shaft portion.
【図１１】エンジンバルブ軸部表面の正常品と不良品
（等ピッチ目発生品）とを面粗度計で測定した結果の一
例を示すグラフである。FIG. 11 is a graph showing an example of a result of measuring a normal product and a defective product (product having a constant pitch) on the surface of the engine valve shaft portion with a surface roughness meter.
【図１２】面粗度計によりエンジンバルブ軸部の表面凹
凸検出を行うときの状態を示す説明図である。FIG. 12 is an explanatory diagram showing a state when surface irregularities of an engine valve shaft portion are detected by a surface roughness meter.
１ 軸部 ２ 傘部 ３ フェース部 ４ 等ピッチ目 ５ 触針 ６ 薄板ブレード ７ 細径棒 ８ 弦線 ９ 弓部本体 １０ 補ロール １１ 張弦機構 １２ 供給リール １３ 巻取リール １４ 振動センサー １５ 昇降本体 １６ シリンダーチャック １７ 押えローラ １８ａ，１８ｂ アーム ２０ 取付部 ２１ 取付穴 ２２ シリンダー ２３ ガイドレール 1 Shaft Part 2 Umbrella Part 3 Face Part 4 Equal Pitch 5 Stylus 6 Thin Plate Blade 7 Thin Rod 8 Chord Wire 9 Bow Part Main Body 10 Supplement Roll 11 Stranding Mechanism 12 Supply Reel 13 Winding Reel 14 Vibration Sensor 15 Elevating Body 16 Cylinder chuck 17 Presser rollers 18a, 18b Arm 20 Mounting part 21 Mounting hole 22 Cylinder 23 Guide rail
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成７年１１月２日[Submission date] November 2, 1995
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】軸部１に等ピッチ目が生じたエンジンバル
ブは、エンジン作動中、即ちバルブガイド２４内で摺動
中に、異常音（シュルシュル音の騒音）を発生すると共
に、バルブガイド２４を摩滅させ、精度、寿命の低下、
シート／フェース間の着座不良による気密低下、エンジ
ン出力低下、燃費ロス等を招く。[0005] Engine equal pitch th to the shaft portion 1 occurs valve during engine operation, i.e. during slide valve guide within 24, as well as generating abnormal sound (noise Hluhluwe sound), worn valve guide 24 Accuracy, shortening of life,
Airtightness reduction due to poor seat / face seating, engine output reduction, fuel consumption loss, etc.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３２[Name of item to be corrected] 0032
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００３２】本第２実施例に係る自動検査装置は、接触
式検出子として図６に示した細径棒７に代えて図２に示
す高硬度且つ塑性変形しない高弾性の薄板ブレード６
（超硬製１．２t ×１５．０w ×６０L ｍｍ，刃先角：
３０°）を用い、この薄板ブレード６の一端を振動セン
サー１４の一端に取付けたものであり、薄板ブレード６
の刃先を軸部表面に接触させて軸部長手方向に一定速度
ｖで移動させることによって薄板ブレード６に機械的振
動を発生させる。その他の構成は上記第１実施例と全く
同様である。また動作も上記第１実施例と同様であるた
めここでの説明は省略する。In the automatic inspection apparatus according to the second embodiment, the thin blade 6 having high hardness and plastic deformation shown in FIG. 2 is used instead of the thin rod 7 shown in FIG. 6 as the contact type detector.
(Carbide 1.2 t × 15.0 w × 60 L mm, cutting edge angle:
30 °) and one end of the thin blade 6 is attached to one end of the vibration sensor 14.
The thin blade 6 is subjected to mechanical vibration by bringing the blade edge of the blade into contact with the surface of the shaft and moving the blade in the longitudinal direction of the shaft at a constant speed v. The other structure is exactly the same as that of the first embodiment. The operation is also similar to that of the first embodiment, and the description thereof is omitted here.
【手続補正３】[Procedure 3]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図９[Correction target item name] Figure 9
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図９】 [Figure 9]
Claims (4)
線接触させると共に被検体表面の凹凸部と交叉する方向
に一定速度で移動させ、このときに被検体表面の凹凸部
で生起する前記接触式検出子の振動或るいは音響を検出
し、この検出信号が所定値を超過した場合には当該被検
体を不良品と判定することを特徴とする表面粗度異常品
の自動検出方法。1. A contact-type detector is brought into point or line contact with the surface of a subject and is moved at a constant speed in a direction intersecting with the irregularities on the surface of the subject. Vibration or sound of the contact-type detector is detected, and when the detection signal exceeds a predetermined value, the subject is determined to be a defective product. Automatic detection of an abnormal surface roughness product. Method.
動検出方法において、 接触式検出子の振動或るいは音響の検出信号が所定値を
超過した場合には異常報知信号を上流工程の研削盤制御
部へ送信してこの研削盤の駆動モータを停止させること
を特徴とする表面粗度異常品の自動検出方法。2. The method for automatically detecting an abnormal surface roughness product according to claim 1, wherein when the vibration or acoustic detection signal of the contact type detector exceeds a predetermined value, an abnormality notification signal is sent in an upstream step. The method for automatically detecting a product having an abnormal surface roughness is characterized by transmitting the same to a grinding machine control section of the machine and stopping the drive motor of the grinding machine.
面に点或るいは線接触させると共に被検体表面の凹凸部
と交叉する方向に一定速度で移動させる移動手段と、 被検体表面の凹凸部で生起する前記接触式検出子の振動
或るいは音響を検出する検出手段と、 この検出手段の検出信号が所定値を超過した場合には当
該被検体を不良品と判定する判定手段とを有することを
特徴とする表面粗度異常品の自動検査装置。3. A contact type detector and a contact type detector which is moved in the direction of the surface of the subject so as to make point or line contact with the surface of the subject and at a constant speed in the direction intersecting with the irregularities on the surface of the subject. The moving means for moving the contact detecting means, the detecting means for detecting the vibration or the sound of the contact-type detector caused by the uneven portion of the surface of the subject, and the detecting signal of the detecting means exceeds a predetermined value, An automatic inspection apparatus for an abnormal surface roughness product, comprising: a determination unit that determines a subject as a defective product.
動検査装置において、 検出手段の検出信号が所定値を超過した場合には異常報
知信号を上流工程の研削盤制御部へ送信してこの研削盤
の駆動モータを停止させる手段を有することを特徴とす
る表面粗度異常品の自動検出装置。4. The automatic inspection device for an abnormal surface roughness product according to claim 3, wherein when the detection signal of the detection means exceeds a predetermined value, an abnormality notification signal is transmitted to the grinder control unit in the upstream process. An automatic detection device for an abnormal surface roughness product, comprising means for stopping a drive motor of a lever grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22297795A JPH0968421A (en) | 1995-08-31 | 1995-08-31 | Method and apparatus for automatic detection of surface-roughness abnormal product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22297795A JPH0968421A (en) | 1995-08-31 | 1995-08-31 | Method and apparatus for automatic detection of surface-roughness abnormal product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0968421A true JPH0968421A (en) | 1997-03-11 |
Family
ID=16790866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22297795A Withdrawn JPH0968421A (en) | 1995-08-31 | 1995-08-31 | Method and apparatus for automatic detection of surface-roughness abnormal product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0968421A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2867856A1 (en) * | 2004-03-18 | 2005-09-23 | Renault Sas | Crankshaft selecting process for motor vehicle, involves carrying out technical analysis of crankshaft by comparing its parameters with criteria, and determining destination for crankshaft from preset destinations based on analysis result |
| JP2011232342A (en) * | 2010-04-29 | 2011-11-17 | Hommel-Etamic Gmbh | Calculation method of lead structure |
| JP2013177216A (en) * | 2012-02-28 | 2013-09-09 | Daifuku Co Ltd | Article conveying facility |
-
1995
- 1995-08-31 JP JP22297795A patent/JPH0968421A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2867856A1 (en) * | 2004-03-18 | 2005-09-23 | Renault Sas | Crankshaft selecting process for motor vehicle, involves carrying out technical analysis of crankshaft by comparing its parameters with criteria, and determining destination for crankshaft from preset destinations based on analysis result |
| JP2011232342A (en) * | 2010-04-29 | 2011-11-17 | Hommel-Etamic Gmbh | Calculation method of lead structure |
| JP2013177216A (en) * | 2012-02-28 | 2013-09-09 | Daifuku Co Ltd | Article conveying facility |
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