JPH0219638A - Automatic evaluator for piston - Google Patents
Automatic evaluator for pistonInfo
- Publication number
- JPH0219638A JPH0219638A JP16866488A JP16866488A JPH0219638A JP H0219638 A JPH0219638 A JP H0219638A JP 16866488 A JP16866488 A JP 16866488A JP 16866488 A JP16866488 A JP 16866488A JP H0219638 A JPH0219638 A JP H0219638A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- sensor
- adherend
- distance
- evaluation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011156 evaluation Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 230000006386 memory function Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はピストンの自動評価装置に関する。さらに詳し
くは金属の表面を非接触の状態で検出できる変位センサ
ーと固体の表面を非接触の状態で検出できる変位センサ
ーとの差よりカーボン等ピストンへの付着物の形状を算
出し、演算処理して自動的に数値化表現することのでき
るピストンの自動評価装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic piston evaluation device. In more detail, the shape of carbon and other deposits on the piston is calculated from the difference between a displacement sensor that can detect metal surfaces without contact and a displacement sensor that can detect solid surfaces without contact, and the calculation process is performed. The present invention relates to an automatic evaluation device for pistons that can be automatically expressed numerically.
（従来技術と課題）
従来、自動車等のエンジンをテストした後、分解してピ
ストン表面のカーボンデポジット等を評価する際、自動
評価装置がなかったために目視により長時間をかけて観
察し、評価してきた。(Prior art and issues) Conventionally, after testing an automobile engine, etc., it was disassembled and evaluated for carbon deposits on the surface of the piston.As there was no automatic evaluation equipment, it was necessary to visually observe and evaluate for a long time. Ta.
しかるに、この評価技術が未熟であったりすると、評価
データがバラついたり、数値が異なったりして問題であ
った。また、３次元の形状Δ−ｊ定機が一般に市販され
てはいるが、これでは付着物の形状を測定することはで
きない。さらに、接触型の形状Δ１１定機を利用すると
カーボンデポジットがとれてしまう点でも問題であった
。However, if this evaluation technology is not mature enough, there is a problem in that the evaluation data may vary or the numerical values may differ. Further, although three-dimensional shape Δ-j measuring machines are generally commercially available, they cannot measure the shape of deposits. Furthermore, there was a problem in that carbon deposits were removed when a contact type Δ11 fixing machine was used.
このため久しくすぐれた非接触型のピストンの日勤評価
装置が切望されてきた。For this reason, an excellent non-contact type piston day shift evaluation device has been desired for a long time.
（課題を解決するための手段）
本発明者らは上記の事情に鑑み、種々検討した結果、ピ
ストンをその上において回転させることのできる回転盤
と、回転するピストンの金属表面を非接触の状態で検出
でき、上下にスライド可能な変位センサーＡ１ピストン
の付着物の表面を非接触の状態で検出でき、上下にスラ
イド可能な変位センサーＢおよびピストンを回転させな
がらセンサーＡならびにセンサーＢからの情報よりピス
トンへの付着物の形状を算出し、演算処理して数値化表
現することのできる演算記憶機能付装置を具備したこと
を特徴とするピストンの日勤評価装置を発明するに至っ
た。(Means for Solving the Problems) In view of the above circumstances, the present inventors have made various studies and found that a rotating disk on which a piston can be rotated and a metal surface of a rotating piston are placed in a non-contact state. Displacement sensor A that can be slid up and down, displacement sensor B that can detect the surface of the piston without contact and that can be slid up and down, and information from sensor A and sensor B while rotating the piston. We have now invented a daytime work evaluation device for pistons, which is equipped with a device with an arithmetic and memory function that can calculate the shape of deposits on pistons, perform arithmetic processing, and express them numerically.
この回転盤は、回転精度の高いエアベアリングユニット
が最適であり、またセンサーＡについては、渦電流方式
もしくは静電気容量方式の非接触型変位計が最適であり
、さらにセンサーＢについては、光反射式もしくはレー
ザ反射式の非接触型変位計が最適である。For this rotary disk, an air bearing unit with high rotational accuracy is optimal, and for sensor A, an eddy current type or electrostatic capacitance type non-contact displacement meter is optimal, and for sensor B, a light reflection type is optimal. Alternatively, a laser reflection type non-contact displacement meter is most suitable.
なお、ここで言う変位センサーとはセンサーと目的とす
る対照物との距離を検出できるセンサーのことを意味す
る。Note that the displacement sensor referred to here means a sensor that can detect the distance between the sensor and the target object.
すなわち、回転盤の上に置かれたピストンを回転しなが
ら、その横に具備されて上下にスライドすることのでき
るセンサーＡによりピストンの金属表面までの距離を連
続的に把握し、同じくその上もしくは下に具備されて上
下にスライドすることのできるセンサーＢにより付着物
の表面までの距離を把握して、その差を演算処理して付
着物の形状を数値化表現することができるようにした。That is, while rotating the piston placed on the rotary disk, the distance to the metal surface of the piston is continuously determined by sensor A installed next to the piston and capable of sliding up and down, and the distance to the metal surface of the piston is continuously determined. The distance to the surface of the deposit is determined by a sensor B installed at the bottom that can be slid up and down, and the difference is calculated to express the shape of the deposit numerically.
（作用）
本発明によるピストンの日勤評価装置を利用スれ、ば、
自動的にピストン表面のカーボンデポジット等を評価す
ることが可能である。(Function) By using the piston day shift evaluation device according to the present invention,
It is possible to automatically evaluate carbon deposits on the piston surface.
すなわち、従来の目視による長時間の労力が不要となる
ばかりでなく、自動化により評価データのバラツキが小
さくなるとともに、安定した評価データの取得が可能に
なった。In other words, not only is the long time effort required for conventional visual inspection eliminated, but the automation also reduces the dispersion of evaluation data and makes it possible to obtain stable evaluation data.
また本発明のピストンの日勤評価装置は、全て非接触型
のセンサーにて計測をしているため、ピストンの表面に
付着しているカーボンデポジットを損傷することなく評
価データの取得が可能である。Furthermore, since the piston day shift evaluation device of the present invention performs all measurements using non-contact sensors, it is possible to obtain evaluation data without damaging the carbon deposits attached to the surface of the piston.
（実施例）
本発明のピストンの日勤評価装置は、ピストン表面のカ
ーボンデポジット等を測定評価するのに有効であるので
、以下この実施例について詳述するが本発明は、これに
限定されるものではない。(Example) Since the piston day shift evaluation device of the present invention is effective for measuring and evaluating carbon deposits on the surface of the piston, this example will be described in detail below, but the present invention is not limited thereto. isn't it.
第１図に示すような、本発明によるピストンの日勤評価
装置を用いて２００時間運転後のキャタピラ−Ｌ−１エ
ンジンのピストンの評価を行なった。The piston of the Caterpillar L-1 engine after 200 hours of operation was evaluated using the piston daytime evaluation apparatus according to the present invention as shown in FIG.
先ず、エアベアリングユニット・１に接続された回転盤
・２の上にピストン・Ｐを置き、センサースライドガイ
ド・３に沿って上下にスライド可能な渦電流方式の変位
センサーＡ・４およびレーザ反射式変位センサーＢ・５
を小型モータ・６に接続されたネジ・７を回転させて、
上端に持ちあげる。First, the piston P is placed on the rotary disk 2 connected to the air bearing unit 1, and the eddy current displacement sensor A 4, which can slide up and down along the sensor slide guide 3, and the laser reflection type are placed. Displacement sensor B・5
Rotate the screw 7 connected to the small motor 6,
Lift it to the top.
次に、ピストン・Ｐを回転させながら、センサーＡなら
びにセンサーＢをネジ◆７の回転により上から下へとス
ライドさせながらピストンの付着物の形状を測定し、デ
ータを演算記憶機能付装置・８により演算処理して数値
化表現し、ピストンの評価を１回につき１時間で行なう
ことができた。Next, while rotating the piston P, slide the sensors A and B from top to bottom by rotating the screw ◆ 7 to measure the shape of the deposits on the piston, and store the data in the device with arithmetic storage function 8. We were able to perform arithmetic processing and numerical expression, and evaluate the piston in one hour each time.
評価結果を表−１に示す。The evaluation results are shown in Table-1.
（比較例）
ピストン表面のカーボンデポジットを目視により別人３
名で観察し、計算機で演算処理して評価を行なった。そ
の結果、各人とも約４時間を要した。(Comparative example) Another person 3 visually inspected the carbon deposit on the piston surface.
The participants were observed using their names and evaluated using a computer. As a result, it took about 4 hours for each person.
評価結果を表−２に示す。The evaluation results are shown in Table-2.
（発明の効果）
本発明による（実施例）および（比較例）から、明らか
なように、本発明によるピストンの自動評価装置を使用
するとピストンへの付着物の評価のバラツキがなくなり
、熟練者および未熟練者による測定値間の差が殆んどな
くなり、だれもが容易にＡ−１定することが可能となっ
たほか、測定時間が従来のｌ／４近くに減少する等労力
も節約できることが明らかとなった。(Effects of the Invention) As is clear from the (Example) and (Comparative Example) according to the present invention, when the automatic piston evaluation device according to the present invention is used, variations in the evaluation of deposits on the piston are eliminated, and Differences between measurements by unskilled personnel are almost eliminated, making it easy for anyone to determine A-1, and labor is also saved, as the measurement time is reduced to nearly 1/4 of the conventional method. became clear.
４・・・渦電流方式の変位センサーＡ ５・・・レーザ反射式変位センサーＢ ６・・・小型モータ ７・・・ネジ ８・・・演算記憶機能付装置 ９・・・架台 １０・・・プリンター Ｐ・・・ピストン4... Eddy current displacement sensor A 5...Laser reflection type displacement sensor B 6...Small motor 7...screw 8... Device with calculation memory function 9... mount 10...Printer P... Piston
第１図は本発明に係るピストンの自動評価装置の側面図
である。
１・・・エアベアリングユニット
２・・・回転盤
３・・・センサースライドガイドFIG. 1 is a side view of an automatic piston evaluation device according to the present invention. 1...Air bearing unit 2...Rotary disk 3...Sensor slide guide
Claims (1)
回転盤と、回転するピストンの金属表面を非接触の状態
で検出でき、上下にスライド可能な変位センサー（以下
センサーＡ）、ピストンの付着物の表面を非接触の状態
で検出でき、上下にスライド可能な変位センサー（以下
センサーＢ）およびピストンを回転させながらセンサー
ＡならびにセンサーＢからの情報よりピストンへの付着
物の形状を算出し、演算処理して数値化表現することの
できる演算記憶機能付装置を具備したことを特徴とする
ピストンの自動評価装置。 ２、センサーＡが渦電流方式もしくは静電気容量方式の
変位計であることを特徴とする特許請求の範囲第１項に
記載のピストンの自動評価装置。 ３、センサーＢが光反射式もしくはレーザ反射式の変位
計であることを特徴とする特許請求の範囲第１項に記載
のピストンの自動評価装置。[Claims] 1. A rotary disk on which a piston can be rotated, and a displacement sensor (hereinafter referred to as sensor A) capable of detecting the metal surface of the rotating piston in a non-contact state and capable of sliding up and down; The surface of the deposits on the piston can be detected in a non-contact state, and the shape of the deposits on the piston can be detected from the displacement sensor (hereinafter referred to as sensor B) that can slide up and down and the information from sensor A and sensor B while rotating the piston. An automatic piston evaluation device characterized by comprising a device with an arithmetic and memory function capable of calculating, arithmetic processing, and numerical expression. 2. The automatic piston evaluation device according to claim 1, wherein the sensor A is an eddy current type or electrostatic capacitance type displacement meter. 3. The automatic piston evaluation device according to claim 1, wherein the sensor B is a light reflection type or laser reflection type displacement meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16866488A JPH0219638A (en) | 1988-07-08 | 1988-07-08 | Automatic evaluator for piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16866488A JPH0219638A (en) | 1988-07-08 | 1988-07-08 | Automatic evaluator for piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0219638A true JPH0219638A (en) | 1990-01-23 |
Family
ID=15872212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16866488A Pending JPH0219638A (en) | 1988-07-08 | 1988-07-08 | Automatic evaluator for piston |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0219638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06102035A (en) * | 1991-04-06 | 1994-04-12 | Ibaraki Pref Gov | Method and apparatus for measuring shape of coil spring |
| JP2009167053A (en) * | 2008-01-16 | 2009-07-30 | Sumitomo Electric Ind Ltd | Method for growing group iii nitride crystal |
-
1988
- 1988-07-08 JP JP16866488A patent/JPH0219638A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06102035A (en) * | 1991-04-06 | 1994-04-12 | Ibaraki Pref Gov | Method and apparatus for measuring shape of coil spring |
| JP2009167053A (en) * | 2008-01-16 | 2009-07-30 | Sumitomo Electric Ind Ltd | Method for growing group iii nitride crystal |
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