JPH05273083A - Method and its device for inspecting parts having click feeling - Google Patents
Method and its device for inspecting parts having click feelingInfo
- Publication number
- JPH05273083A JPH05273083A JP6815692A JP6815692A JPH05273083A JP H05273083 A JPH05273083 A JP H05273083A JP 6815692 A JP6815692 A JP 6815692A JP 6815692 A JP6815692 A JP 6815692A JP H05273083 A JPH05273083 A JP H05273083A
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- JP
- Japan
- Prior art keywords
- load
- point
- displacement
- value
- detecting
- 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.)
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はスイッチなどのクリック
感を有する部品の検査方法及びその装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for inspecting a part having a click feeling such as a switch.
【０００２】[0002]
【従来の技術】近年、クリック感を有する部品の一種で
あるスイッチにおいて、電気製品の差別化のため人間工
学的なアプローチから感触の良いスイッチが設計される
ようになっており、さらに電気製品の多機能化、高機能
化に伴ってその数が増加している。このようにスイッチ
に関する要望が高まってきており、それに伴ってスイッ
チの検査に対する要望も高まってきている。2. Description of the Related Art In recent years, in a switch, which is a kind of component having a click feeling, a switch having a good feel has been designed from an ergonomic approach in order to differentiate electric products. The number is increasing as the number of functions increases and the number of functions increases. As described above, the demand for switches is increasing, and accordingly, the demand for inspecting switches is also increasing.
【０００３】従来、このようなクリック感を有する部品
の検査は、人間の手の感触に頼り、検査者の判断によっ
て良否の区別を行っていた。Conventionally, inspection of a part having such a click sensation depends on the feel of a human hand, and the inspector judges whether the component is good or bad.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記の
ような方法では、人間の手の感触で検査を行うため、検
査者が異なると検査結果が異なり、検査者が同一の場合
でもその検査者の体調により検査結果が異なるという問
題があり、また検査に熟練を要するため限られた人間し
か検査ができないという問題があり、さらに検査者が腱
鞘炎になるという問題があった。However, in the method as described above, since the inspection is performed by the feel of a human hand, the inspection result differs depending on the inspector, and even if the inspector is the same, There is a problem that the test result differs depending on the physical condition, and there is a problem that only a limited number of people can perform the test because the test requires skill, and further, there is a problem that the tester has tendonitis.
【０００５】本発明は上記従来の問題点に鑑み、検査を
自動化することができるクリック感を有する部品の検査
方法及びその装置を提供することを目的とする。In view of the above-mentioned conventional problems, it is an object of the present invention to provide a method and apparatus for inspecting a component having a click feeling that can automate the inspection.
【０００６】[0006]
【課題を解決するための手段】本発明のクリック感を有
する部品の検査方法及びその装置は、クリック感を有す
る部品の変位−荷重曲線や時間−荷重曲線を、曲線を特
徴づける複数の特徴点を検出してそれらの特徴点を結ぶ
線分で近似し、あるいは関数近似することにより、各点
の絶対値、相対値、各線分の傾きを求め、それらが所定
の範囲内であるか否かで良否を判断することを特徴とす
る。According to the present invention, there is provided a method for inspecting a component having a click feeling and an apparatus therefor, wherein a displacement-load curve and a time-load curve of a component having a click feeling are characterized by a plurality of characteristic points. By detecting the absolute value of each point, the relative value, and the slope of each line segment by approximating with a line segment connecting those feature points or by function approximation, and determining whether they are within a predetermined range. It is characterized by judging pass / fail by.
【０００７】[0007]
【作用】本発明は上記した構成によって、クリック感を
有する部品の良否を人による曖昧な判断ではなく明確に
判断できるとともに検査の自動化を達成することができ
る。With the above-described structure, the present invention makes it possible to clearly judge the quality of a component having a click feeling, not an ambiguous judgment made by a person, and to achieve automatic inspection.
【０００８】[0008]
（実施例１）まず、本発明の第１の実施例について図１
を参照しながら説明する。(Embodiment 1) First, referring to FIG.
Will be described with reference to.
【０００９】図１（ａ）は、ビデオデッキのクリック感
を有するスイッチの変位−荷重曲線である。この変位−
荷重曲線を特徴づける特徴点として、曲線の開始を示す
開始点Ａ、荷重が極大値をとる極大点Ｂ、Ｇ、荷重が極
小値をとる極小点Ｃ、Ｆ、曲線の終了を示す終了点Ｈ、
荷重にしきい値を設け変位が増加するときの終了を示す
終了点Ｄ、荷重にしきい値を設け変位が減少するときの
開始を示す開始点Ｅを設定する。FIG. 1A is a displacement-load curve of a switch having a click feeling of a video deck. This displacement-
As the characteristic points characterizing the load curve, a starting point A indicating the start of the curve, maximum points B and G at which the load has a maximum value, minimum points C and F at which the load has a minimum value, and an end point H indicating the end of the curve. ,
An end point D indicating the end when the threshold value is set to the load and the displacement increases is set, and a start point E indicating the start point when the threshold value is set to the load and the displacement decreases is set.
【００１０】図１（ｂ）は変位−荷重曲線を各特徴点を
結ぶ線分に近似したものである。これらの各特徴点と線
分から、ＢとＣの荷重の差、ＧとＦの荷重の差、Ｂの荷
重の値、Ａ、Ｂを結ぶ線分の傾きを計算し、これらが所
定の範囲内にあれば良品、範囲外にあれば不良品と判断
する。FIG. 1 (b) shows a displacement-load curve approximated to a line segment connecting each characteristic point. From these characteristic points and line segments, the difference between the loads of B and C, the difference between the loads of G and F, the value of the load of B, and the slope of the line segment connecting A and B are calculated, and these are within the predetermined range. If it is, the product is judged to be good, and if it is out of the range, it is judged to be defective.
【００１１】（実施例２）次に、本発明の第２の実施例
について図２を参照しながら説明する。(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG.
【００１２】図２（ａ）は、ビデオデッキのクリック感
を有するスイッチの時間−荷重曲線である。この時間−
荷重曲線を特徴づける特徴点として、曲線の開始を示す
開始点Ａ、荷重が極大値をとる極大点Ｂ、Ｇ、荷重が極
小値をとる極小点Ｃ、Ｆ、曲線の終了を示す終了点Ｈ、
荷重にしきい値を設け変位が増加するときの終了を示す
終了点Ｄ、荷重にしきい値を設け変位が減少するときの
開始を示す開始点Ｅを設定する。FIG. 2A is a time-load curve of a switch having a click feeling of a video deck. This time-
As the characteristic points characterizing the load curve, a starting point A indicating the start of the curve, maximum points B and G at which the load has a maximum value, minimum points C and F at which the load has a minimum value, and an end point H indicating the end of the curve. ,
An end point D indicating the end when the threshold value is set to the load and the displacement increases is set, and a start point E indicating the start point when the threshold value is set to the load and the displacement decreases is set.
【００１３】図２（ｂ）は時間−荷重曲線を各特徴点を
結ぶ線分に近似したものである。これらの各特徴点と線
分から、ＢとＣの荷重の差、ＧとＦの荷重の差、Ｂの荷
重の値、Ａ、Ｂを結ぶ線分の傾きを計算し、これらが所
定の範囲内にあれば良品、範囲外にあれば不良品と判断
する。FIG. 2B shows a time-loading curve approximated to a line segment connecting the respective characteristic points. From these characteristic points and line segments, the difference between the loads of B and C, the difference between the loads of G and F, the value of the load of B, and the slope of the line segment connecting A and B are calculated, and these are within the predetermined range. If it is, the product is judged to be good, and if it is out of the range, it is judged to be defective.
【００１４】（実施例３）次に、本発明の第３の実施例
について図３、図４を参照しながら説明する。(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIGS.
【００１５】図３において、１は部品の変位を検出する
ためのエンコーダからなる変位検出手段、２は部品に加
わる荷重を検出するロードセルからなる荷重検出手段、
３は各特徴点ＡからＤを検出する選択手段である。４は
部品を押すときの開始を示す開始点Ａの検出手段で、予
め設定した荷重のしきい値Ｘと荷重検出手段２で検出し
た荷重信号を比較し、荷重信号がＸ以上となる時の変位
と荷重を開始点Ａとして検出する。５は部品を押すとき
の終了を示す終了点Ｄの検出手段で、予め設定した荷重
のしきい値Ｙと荷重検出手段２で検出した荷重信号を比
較し、荷重信号がＹ以上となる時の変位と荷重を終了点
Ｄとして検出する。In FIG. 3, reference numeral 1 is a displacement detecting means including an encoder for detecting a displacement of a component, 2 is a load detecting means including a load cell for detecting a load applied to the component,
Reference numeral 3 is a selection means for detecting each of the characteristic points A to D. Reference numeral 4 is a detection means of a start point A which indicates the start of pushing the part, and compares a preset load threshold value X with the load signal detected by the load detection means 2, and when the load signal is X or more, The displacement and load are detected as the starting point A. Reference numeral 5 is a detection means for detecting an end point D indicating the end of pushing the part. The preset load threshold value Y is compared with the load signal detected by the load detection means 2, and when the load signal becomes Y or more. The displacement and load are detected as the end point D.
【００１６】６は極大点Ｂの検出手段で、開始点Ａの荷
重を極大値の初期値とし、極大値を荷重検出手段２で検
出した荷重信号と比較し荷重信号が極大値より大となる
ときは極大値を更新していく。このままであると、荷重
の最大値を検出してしまうため、さらに極大極小検出用
相対荷重値Ｉを設定し、極大値からＩを減じたものと荷
重検出手段２で検出した荷重信号とを比較し、極大値か
らＩを減じたものが荷重信号より大であれば、荷重信号
が極大値を通り越し最小値に向かっていると判断し、極
大値とその時の変位を極大点Ｂとして検出する。Reference numeral 6 denotes a maximum point B detecting means, which sets the load at the starting point A as an initial value of the maximum value, compares the maximum value with the load signal detected by the load detecting means 2, and the load signal becomes larger than the maximum value. Sometimes the maximum value is updated. If this is left as it is, the maximum value of the load will be detected. Therefore, the relative load value I for maximum / minimum detection is further set, and the value obtained by subtracting I from the maximum value is compared with the load signal detected by the load detection means 2. If the value obtained by subtracting I from the maximum value is larger than the load signal, it is determined that the load signal has passed the maximum value and is moving toward the minimum value, and the maximum value and the displacement at that time are detected as the maximum point B.
【００１７】７は極小点Ｃの検出手段で、極大点Ｂの荷
重を極小値の初期値とし、極小値を荷重検出手段２で検
出した荷重信号と比較し荷重信号が極小値より小となる
ときは極小値を更新し、極小値とその時の変位を極小点
Ｃとして検出する。Reference numeral 7 denotes a minimum point C detecting means, which sets the load at the maximum point B as an initial value of the minimum value, compares the minimum value with the load signal detected by the load detecting means 2, and the load signal becomes smaller than the minimum value. In this case, the minimum value is updated, and the minimum value and the displacement at that time are detected as the minimum point C.
【００１８】８はＥからＨの各特徴点を検出する選択手
段である。９は部品を離すときの開始を示す開始点Ｅの
検出手段で、予め設定した荷重のしきい値Ｚと荷重検出
手段２で検出した荷重信号を比較し、荷重信号がＺ以下
となる時の変位と荷重を開始点Ｆとして検出する。１０
は部品を離すときの終了を示す終了点Ｈの検出手段で、
予め設定した荷重のしきい値Ｗと荷重検出手段２で検出
した荷重信号を比較し、荷重信号がＷ以下となる時の変
位と荷重を終了点Ｈとして検出する。Reference numeral 8 is a selection means for detecting each characteristic point from E to H. Reference numeral 9 is a detection means of a start point E which indicates the start when the parts are separated, and compares a preset load threshold value Z with the load signal detected by the load detection means 2, and when the load signal becomes Z or less, The displacement and load are detected as the starting point F. 10
Is a detection means of the end point H indicating the end when the parts are separated,
A preset load threshold W is compared with the load signal detected by the load detecting means 2, and the displacement and load when the load signal becomes W or less are detected as the end point H.
【００１９】１１は極小点Ｆの検出手段で、開始点Ｅの
荷重を極小値の初期値とし、極小値を荷重検出手段２で
検出した荷重信号と比較し荷重信号が極小値より小とな
るときは極小値を更新していく。このままであると、荷
重の最小値を検出してしまうため、さらに極大極小検出
用相対荷重値Ｊを設定し、極小値にＪを加えたものと荷
重検出手段２で検出した荷重信号とを比較し、極小値に
Ｊを加えたものが荷重信号より小であれば、荷重信号が
極小値を通り越し極大値に向かっていると判断し、最小
値とその時の変位を極小点Ｆとして検出する。Reference numeral 11 denotes a minimum point F detecting means, which sets the load at the starting point E as an initial value of the minimum value, compares the minimum value with the load signal detected by the load detecting means 2, and the load signal becomes smaller than the minimum value. When the minimum value is updated. If this is left as it is, the minimum value of the load will be detected. Therefore, the relative load value J for maximum / minimum detection is further set, and the value obtained by adding J to the minimum value and the load signal detected by the load detection means 2 are compared. If the value obtained by adding J to the minimum value is smaller than the load signal, it is determined that the load signal has passed the minimum value and is moving toward the maximum value, and the minimum value and the displacement at that time are detected as the minimum point F.
【００２０】以上の各特徴点の検出動作を図４のフロー
チャートに示す。なお、図４においてステップ１８でＫ
＝０、ステップ２５でＫ＝１としているのは、極大点
Ｂ、極小点Ｃを検出するアルゴリズムが似ているのでア
ルゴリズムの共用化を図ったものであり、Ｋ＝０では極
大点Ｂを検出するアルゴリズム、Ｋ＝１では極小点Ｃを
検出するアルゴリズムである。同様にして、ステップ３
２でＬ＝０、ステップ３９でＬ＝１としているのは、極
小点Ｆ、極大点Ｇを検出するアルゴリズムが似ているの
でアルゴリズムの共用化を図ったものであり、Ｌ＝０で
は極小点Ｆを検出するアルゴリズム、Ｋ＝１では極大点
Ｇを検出するアルゴリズムである。The detection operation of each of the above feature points is shown in the flow chart of FIG. It should be noted that in step 18 in FIG.
= 0, and K = 1 in step 25 is because the algorithm for detecting the maximum point B and the minimum point C is similar, so that the algorithm is shared. When K = 0, the maximum point B is detected. Is an algorithm for detecting the minimum point C when K = 1. Similarly, step 3
The reason that L = 0 in 2 and L = 1 in step 39 is that the algorithms for detecting the minimum point F and the maximum point G are similar, so that the algorithm is shared. When L = 0, the minimum point is set. An algorithm for detecting F, and an algorithm for detecting the maximum point G when K = 1.
【００２１】１２は極大点Ｇの検出手段で、極小点Ｆの
荷重を極大値の初期値とし、極大値を荷重検出手段２で
検出した荷重信号と比較し荷重信号が極大値より大とな
るときは極大値を更新し、最大値とその時の変位を極大
点Ｇとして検出する。Reference numeral 12 denotes a maximum point G detecting means, which sets the load at the minimum point F as an initial value of the maximum value, compares the maximum value with the load signal detected by the load detecting means 2, and the load signal becomes larger than the maximum value. In this case, the maximum value is updated, and the maximum value and the displacement at that time are detected as the maximum point G.
【００２２】１３は各点の絶対値、相対値、傾き計算部
で、Ｂとその荷重の差、ＧとＦの荷重の差、Ｂの荷重の
値、Ａ、Ｂを結ぶ線分の傾きを計算する。１４は良否判
断部で、上記計算部１３で計算した各値と、予め設定し
た良品の各値の範囲を比較し、これが範囲内であれば良
品、範囲外であれば不良品と判断する。Reference numeral 13 denotes an absolute value, a relative value, and an inclination calculating section for each point, which indicates a difference between B and its load, a difference between G and F loads, a value of B load, and an inclination of a line segment connecting A and B. calculate. Reference numeral 14 denotes a pass / fail judgment unit, which compares each value calculated by the calculation unit 13 with a preset range of each value of non-defective products.
【００２３】（実施例４）次に、本発明の第４の実施例
について図５、図６を参照しながら説明する。(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIGS.
【００２４】図５において、第３の実施例と同一の構成
についてはその説明を援用し、異なる点についてのみ説
明する。４５は極大点Ｂの検出手段で、開始点Ａの荷重
を極大値の初期値とし、極大値を荷重検出手段２で検出
した荷重信号と比較し、荷重信号が極大値より大でかつ
極大値の時の変位との差が予め設定した極大値検出用変
位差Ｍより小となるときは極大値を更新し、極大値とそ
の時の変位を極大点Ｂとして検出する。４６は極小点Ｆ
の検出手段で、開始点Ｅの荷重を極小値の初期値とし、
極小値を荷重検出手段２で検出した荷重信号と比較し荷
重信号が極小値より小でかつ極小時の変位差が予め設定
した極小値検出用変位差Ｎより小となるときは極小値を
更新し、極小値とその時の変位を極小点Ｆとして検出す
る。In FIG. 5, the description of the same configuration as that of the third embodiment is cited, and only the different points will be described. Reference numeral 45 denotes a maximum point B detecting means, which sets the load at the starting point A as an initial value of the maximum value, compares the maximum value with the load signal detected by the load detecting means 2, and the load signal is larger than the maximum value and the maximum value. When the difference from the displacement at the time of becomes smaller than the preset maximum value detection displacement difference M, the maximum value is updated, and the maximum value and the displacement at that time are detected as the maximum point B. 46 is the minimum point F
In the detection means of, the load at the starting point E is set to the initial value of the minimum value,
The minimum value is compared with the load signal detected by the load detecting means 2, and when the load signal is smaller than the minimum value and the displacement difference at the minimum is smaller than the preset minimum value detection displacement difference N, the minimum value is updated. Then, the minimum value and the displacement at that time are detected as the minimum point F.
【００２５】（実施例５）次に、本発明の第５の実施例
について図７、図８を参照しながら説明する。(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS.
【００２６】図７において、６９は関数近似手段で、荷
重検出手段２で検出した荷重信号が予め設定した値Ｕよ
り大となるまでと、その後荷重信号が予め設定した値Ｖ
より小となった以後の変位と荷重のデータの組を、それ
ぞれ変位ｓ、荷重をｔとした(1)式の関数に近似する。In FIG. 7, reference numeral 69 is a function approximating means until the load signal detected by the load detecting means 2 becomes larger than a preset value U, and thereafter, the load signal is preset value V.
The data set of the displacement and the load after it becomes smaller is approximated to the function of the equation (1) where the displacement is s and the load is t.
【００２７】 ｔ＝Ｐ3 ｓ3 ＋Ｐ2 ｓ2 ＋Ｐ1 ｓ＋Ｐ0 ・・・ (1) dt/ds=3P3 ｓ2 ＋２Ｐ2 ｓ＋Ｐ1 ・・・ (2) ７０は特徴点検出手段であり、 (1)式をｓで微分した
(2)式の二次方程式を解き、 (1)式に代入することによ
り極大点Ｂ、Ｇ、極小点Ｃ、Ｆを検出し、又 (1)式から
予め設定した荷重の定数Ｘ、Ｚ、Ｙ、Ｗを減じた三次方
程式を解き、開始点Ａ、Ｅ、終了点Ｄ、Ｈを検出する。T = P 3 s 3 + P 2 s 2 + P 1 s + P 0 ... (1) dt / ds = 3P 3 s 2 + 2P 2 s + P 1 ... (2) 70 is a feature point detecting means, Equation (1) is differentiated by s
The maximum points B and G and the minimum points C and F are detected by solving the quadratic equation of equation (2) and substituting it into equation (1), and the load constants X and Z preset from equation (1) are used. , Y, W are subtracted to solve a cubic equation, and start points A, E and end points D, H are detected.
【００２８】なお、開始点及び終了点の検出を、予め荷
重を設定してその値から変位を求めるようにしている
が、予め変位を設定してその値から荷重を求めるように
してもよい。Although the starting point and the ending point are detected by setting the load in advance and obtaining the displacement from the value, the displacement may be set in advance and the load may be obtained from the value.
【００２９】[0029]
【発明の効果】本発明によれば、以上のようにクリック
感を有する部品の変位−荷重曲線や荷重−時間曲線を、
曲線を特徴づける複数の特徴点を検出してそれらの特徴
点を結ぶ線分で近似することにより、あるいは関数近似
することにより、各点の絶対値、相対値、各線分の傾き
を求め、それらが所定の範囲内にあれば良品、範囲外に
あれば不良品と判断し、クリック感を有する部品の良否
の判断を明確に行えるとともに検査の自動化を達成する
ことができる。As described above, according to the present invention, the displacement-load curve and the load-time curve of a component having a click feeling as described above can be obtained.
The absolute value of each point, the relative value, and the slope of each line segment are obtained by detecting a plurality of feature points that characterize the curve and approximating with a line segment that connects those feature points, or by performing a function approximation. Is within a predetermined range, it is judged as a non-defective product, and if out of the range, it is judged as a non-defective product, and it is possible to clearly judge the quality of a component having a click sensation and to automate the inspection.
【図１】本発明の第１の実施例を示し、（ａ）はクリッ
ク感を有する部品の変位−荷重曲線を示す図、（ｂ）は
変位−荷重曲線を各特徴点を結ぶ線分で近似した図であ
る。1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a diagram showing a displacement-load curve of a component having a click feeling, and FIG. 1B is a line segment connecting the displacement-load curve. It is the approximated figure.
【図２】本発明の第２の実施例を示し、（ａ）はクリッ
ク感を有する部品の時間−荷重曲線を示す図、（ｂ）は
時間−荷重曲線を各特徴点を結ぶ線分で近似した図であ
る。2A and 2B show a second embodiment of the present invention, FIG. 2A is a diagram showing a time-load curve of a component having a click feeling, and FIG. 2B is a line segment connecting the characteristic points of the time-load curve. It is the approximated figure.
【図３】本発明の第３の実施例におけるクリック感を有
する部品の検査装置のブロック図である。FIG. 3 is a block diagram of an inspection device for a component having a click feeling according to a third embodiment of the present invention.
【図４】同実施例における特徴点検出過程のフローチャ
ートである。FIG. 4 is a flowchart of a feature point detection process in the embodiment.
【図５】本発明の第４の実施例におけるクリック感を有
する部品の検査装置のブロック図である。FIG. 5 is a block diagram of an inspection device for a component having a click feeling according to a fourth embodiment of the present invention.
【図６】同実施例における特徴点検出過程のフローチャ
ートである。FIG. 6 is a flowchart of a feature point detection process in the embodiment.
【図７】本発明の第５の実施例におけるクリック感を有
する部品の検査装置のブロック図である。FIG. 7 is a block diagram of an inspection apparatus for a component having a click feeling according to a fifth embodiment of the present invention.
【図８】同実施例によりクリック感を有する部品の変位
−荷重曲線を関数近似した図である。FIG. 8 is a diagram in which a displacement-load curve of a component having a click feeling according to the embodiment is approximated by a function.
１ 変位検出手段 ２ 荷重検出手段 ３ 選択手段 ４ 開始点Ａ検出手段 ５ 終了点Ｄ検出手段 ６ 極大点Ｂ検出手段 ７ 極小点Ｃ検出手段 ８ 選択手段 ９ 開始点Ｅ検出手段 １０ 終了点Ｈ検出手段 １１ 極小点Ｆ検出手段 １２ 極大点Ｇ検出手段 １３ 各点の絶対、相対値、傾き計算部 １４ 良否判定部 ４５ 極大点Ｂ検出手段 ４６ 極小点Ｆ検出手段 ６９ 関数近似手段 ７０ 特徴点検出手段 1 displacement detection means 2 load detection means 3 selection means 4 start point A detection means 5 end point D detection means 6 maximum point B detection means 7 minimum point C detection means 8 selection means 9 start point E detection means 10 end point H detection means 11 minimum point F detection means 12 maximum point G detection means 13 absolute, relative value and inclination calculation section of each point 14 pass / fail judgment section 45 maximum point B detection section 46 minimum point F detection section 69 function approximation section 70 feature point detection section
Claims (5)
線を、曲線を特徴づける特徴点を結ぶ線分で近似し、各
特徴点の絶対値、相対値、各線分の傾きが所定の範囲内
であるか否かで部品の良否を判定することを特徴とする
クリック感を有する部品の検査方法。1. A displacement-load curve of a part having a click feeling is approximated by a line segment connecting the characteristic points that characterize the curve, and the absolute value of each characteristic point, the relative value, and the inclination of each line segment are within a predetermined range. A method of inspecting a component having a click feeling, which is characterized by determining whether the component is good or not.
線を、曲線を特徴づける特徴点を結ぶ線分で近似し、各
特徴点の絶対値、相対値、各線分の傾きが所定の範囲内
であるか否かで部品の良否を判定することを特徴とする
クリック感を有する部品の検査方法。2. A time-load curve of a component having a click feeling is approximated by a line segment connecting the characteristic points that characterize the curve, and the absolute value of each characteristic point, the relative value, and the inclination of each line segment are within a predetermined range. A method of inspecting a component having a click feeling, which is characterized by determining whether the component is good or not.
わる荷重を検出する手段と、荷重信号から部品を押すと
きの開始を示す開始点Ａ、荷重の極大値をとる極大点
Ｂ、荷重の極小値をとる極小点Ｃ、終了を示す終了点Ｄ
の各特徴点の検出を選択する手段と、予め設定した荷重
のしきい値Ｘを通過した時に選択され、変位信号と荷重
信号とから開始点Ａの変位と荷重を検出する手段と、開
始点Ａを検出した後で予め設定した荷重のしきい値Ｙを
通過した時に選択され、変位信号と荷重信号とから終了
点Ｄの変位と荷重を検出する手段と、開始点Ａの荷重を
極大値の初期値とし、開始点Ａを検出した後から終了点
Ｄを検出もしくは荷重信号が極大値から予め設定した極
大極小検出用相対荷重値Ｉを減じた値より小となるまで
の間で荷重信号が極大値より大となる時に選択され、こ
のときの荷重を新たな極大値とし、あわせてこの時の変
位を検出して極大点Ｂを検出する手段と、極大点Ｂを検
出した後で、極大点Ｂの荷重を極小値の初期値とし、荷
重信号が極小値より小となるときに選択され、このとき
の荷重を新たな極小値とし、あわせてこのときの変位を
検出し極小点Ｃを検出する手段と、荷重信号から部品を
離すときの開始を示す開始点Ｅ、荷重の極小値をとる極
大点Ｆ、荷重の極大値をとる極大点Ｇ、終了を示す終了
点Ｈの各特徴点の検出を選択する手段と、終了点Ｄを検
出した後で、予め設定した荷重のしきい値Ｚを通過した
時に選択され、変位信号と荷重信号とから開始点Ｅの変
位と荷重を検出する手段と、開始点Ｅを検出した後で予
め設定した荷重のしきい値Ｗを通過した時に選択され、
変位信号と荷重信号とから終了点Ｈの変位と荷重を検出
する手段と、開始点Ｅの荷重を極小値の初期値とし、開
始点Ｅを検出した後から終了点Ｈを検出もしくは荷重信
号が極小値から予め設定した極大極小検出用相対荷重値
Ｊを加えた値より大となるまでの間で荷重信号が極小値
より小となる時に選択され、このときの荷重を新たな極
小値とし、あわせてこの時の変位を検出して極小点Ｆを
検出する手段と、極小点Ｆを検出した後で、極小点Ｆの
荷重を極大値の初期値とし、荷重信号が極大値より大と
なるときに選択され、このときの荷重を新たな極大値と
し、あわせてこのときの変位を検出し極大点Ｇを検出す
る手段を有することを特徴とするクリック感を有する部
品の検査装置。3. A means for detecting displacement of a component, a means for detecting a load applied to the component, a starting point A indicating the start of pushing the component from a load signal, a maximum point B at which the load has a maximum value, and a load. Point C that takes the minimum value of, and end point D that indicates the end
Means for selecting the detection of each characteristic point, means for detecting the displacement and load at the starting point A from the displacement signal and the load signal, which are selected when the preset threshold value X of the load is passed, and the starting point A means for detecting the displacement and load at the end point D from the displacement signal and the load signal, which is selected when the preset load threshold value Y is passed after detecting A, and the load at the start point A is the maximum value. The initial value of, the load signal is detected from the start point A until the end point D is detected or the load signal becomes smaller than the maximum value minus the preset maximum / minimum relative detection load value I. Is greater than the maximum value, the load at this time is set as a new maximum value, and the displacement at this time is also detected to detect the maximum point B, and after detecting the maximum point B, Make the load at the maximum point B the initial value of the minimum value, and make sure that the load signal is the minimum value. When the value becomes small, the load at this time is set as a new minimum value, and the means for detecting the minimum point C by detecting the displacement at this time and the starting point indicating the start of separating the part from the load signal E, a maximum point F that takes the minimum value of the load, a maximum point G that takes the maximum value of the load, a means for selecting the detection of each characteristic point of the end point H indicating the end, and after detecting the end point D, A means for detecting the displacement and load of the starting point E from the displacement signal and the load signal, which is selected when the set load threshold value Z is passed, and a preset load threshold after the starting point E is detected. Selected when the value W is passed,
A means for detecting the displacement and load at the end point H from the displacement signal and the load signal, and the load at the start point E as the minimum initial value, and after detecting the start point E, the end point H is detected or the load signal is detected. It is selected when the load signal becomes smaller than the minimum value from the minimum value until it becomes larger than the value obtained by adding the maximum maximum / minimum detection relative load value J, and the load at this time is set as a new minimum value. At the same time, a means for detecting the minimum point F by detecting the displacement at this time and a means for detecting the minimum point F and then setting the load of the minimum point F as the initial value of the maximum value, and the load signal becomes larger than the maximum value. An apparatus for inspecting a component having a click feeling, which is selected at any time, and has a means for detecting a maximum point G by detecting a displacement at this time as a new maximum value.
わる荷重を検出する手段と、変位信号と荷重信号から部
品を押すときの開始を示す開始点Ａ、荷重の極大値をと
る極大点Ｂ、荷重の極小値をとる極小点Ｃ、終了を示す
終了点Ｄの各特徴点の検出を選択する手段と、予め設定
した荷重のしきい値Ｘを通過した時に選択され、変位信
号と荷重信号とから開始点Ａの変位と荷重を検出する手
段と、開始点Ａを検出した後で予め設定した荷重のしき
い値Ｙを通過した時に選択され、変位信号と荷重信号と
から終了点Ｄの変位と荷重を検出する手段と、開始点Ａ
の荷重を極大値の初期値とし、開始点Ａを検出した後か
ら終了点Ｄを検出もしくは荷重信号が極大値より大で、
変位信号と元の極大値の時の変位との差が予め設定した
値Ｍより大となるまでの間で荷重信号が極大値より大と
なる時に選択され、このときの荷重を新たな極大値と
し、あわせてこの時の変位を検出して極大点Ｂを検出す
る手段と、極大点Ｂの荷重を極小値の初期値とし、開始
点Ａを検出した後から終了点Ｄを検出もしくは荷重信号
が極大値より大で、変位信号と元の極大値の時の変位と
の差が予め設定した極大値検出用変位差Ｍより大となる
までの間で、荷重信号が極小値より小となるときに選択
され、このときの荷重を新たな極小値とし、あわせてこ
のときの変位を検出し極小点Ｃを検出する手段と、変位
信号と荷重信号から部品を離すときの開始を示す開始点
Ｅ、荷重の極小値をとる極大点Ｆ、荷重の極大値をとる
極大点Ｇ、終了を示す終了点Ｈの各特徴点の検出を選択
する手段と、終了点Ｄを検出した後で、予め設定した荷
重のしきい値Ｚを通過した時に選択され、変位信号と荷
重信号とから開始点Ｅの変位と荷重を検出する手段と、
開始点Ｅを検出した後で予め設定した荷重のしきい値Ｗ
を通過した時に選択され、変位信号と荷重信号とから終
了点Ｈの変位と荷重を検出する手段と、開始点Ｅの荷重
を極小値の初期値とし、開始点Ｅを検出した後から終了
点Ｈを検出もしくは荷重信号が極小値より小で、変位信
号と元の極小値の時の変位との差が予め設定した値Ｎよ
り大となるまでの間で、荷重信号が極小値より小となる
時に選択され、このときの荷重を新たな極小値とし、あ
わせてこの時の変位を検出して極小点Ｆを検出する手段
と、極小点Ｆの荷重を極大値の初期値とし、開始点Ｅを
検出した後から終了点Ｈを検出もしくは荷重信号が極小
値より小で、変位信号と元の極小値の時の変位との差が
予め設定した極小値検出用変位差Ｎより大となるまでの
間で、荷重信号が極大値より大となるときに選択され、
このときの荷重を新たな極大値とし、あわせてこのとき
の変位を検出し極大点Ｇを検出する手段を有することを
特徴とするクリック感を有する部品の検査装置。4. A means for detecting a displacement of a component, a means for detecting a load applied to the component, a starting point A indicating the start of pushing the component from the displacement signal and the load signal, and a maximum point for taking a maximum value of the load. B, means for selecting detection of characteristic points such as a minimum point C that takes a minimum value of the load, and an end point D that indicates the end, and a displacement signal and a load that are selected when a preset load threshold X is passed. Means for detecting the displacement and load at the starting point A from the signal, and selected when the preset threshold value Y of the load is passed after detecting the starting point A, and the end point D from the displacement signal and the load signal. For detecting the displacement and load of the starting point A
Is set as the initial value of the maximum value, the end point D is detected after the start point A is detected, or the load signal is larger than the maximum value,
It is selected when the load signal becomes larger than the maximum value until the difference between the displacement signal and the displacement at the original maximum value becomes larger than the preset value M, and the load at this time is selected as the new maximum value. In addition, means for detecting the maximum point B by detecting the displacement at this time, and the load at the maximum point B as the initial value of the minimum value, and after detecting the starting point A, detecting the end point D or the load signal Is larger than the maximum value, and the load signal becomes smaller than the minimum value until the difference between the displacement signal and the displacement at the original maximum value becomes larger than the preset maximum value detection displacement difference M. Means for detecting the minimum point C by detecting the displacement at this time and the load at this time as a new minimum value, and a start point indicating the start of separating the part from the displacement signal and the load signal E, maximum point F that takes the minimum value of load, maximum point G that takes the maximum value of load, indicates the end A means for selecting the detection of each characteristic point of the end point H, and a selection when the end point D is detected and a preset load threshold Z is passed, and a start point E is selected from the displacement signal and the load signal. Means for detecting the displacement and load of
Threshold value W of preset load after detecting the starting point E
Means for detecting the displacement and the load at the end point H from the displacement signal and the load signal, and the load at the start point E as the minimum initial value, and after the start point E is detected, the end point is detected. If the load signal is smaller than the minimum value until H is detected or the load signal is smaller than the minimum value and the difference between the displacement signal and the displacement at the original minimum value becomes larger than a preset value N. Is selected, the load at this time is set as a new minimum value, a means for detecting the minimum point F by detecting the displacement at this time, and the load at the minimum point F is used as the initial value of the maximum value, and the starting point After detecting E, the end point H is detected or the load signal is smaller than the minimum value, and the difference between the displacement signal and the displacement at the original minimum value becomes larger than the preset minimum value displacement difference N. Is selected when the load signal exceeds the maximum value,
A device for inspecting a component having a click feeling, characterized in that the load at this time is set to a new maximum value, and a means for detecting the displacement at this time to detect a maximum point G is also provided.
わる荷重を検出する手段と、変位信号と荷重信号とから
部品の変位−荷重曲線を部品を押すときの関数と離すと
きの関数に近似する手段と、押すときの近似関数から開
始を示す開始点Ａ、荷重の極大値を求め、あわせてこの
ときの変位を求めて荷重の極大値をとる極大点Ｂ、荷重
の極小値を求め、あわせてこのときの変位を求めて荷重
の極小値をとる極小点Ｃ、終了を示す終了点Ｄを検出
し、離すときの近似関数から開始を示す開始点Ｅ、荷重
の極小値を求め、あわせてこのときの変位を求めて荷重
の極小値をとる極小点Ｆ、荷重の極大値を求め、あわせ
てこのときの変位を求めて荷重の極大値をとる極大点
Ｇ、終了を示す終了点Ｈを検出する手段とを有すること
を特徴とするクリック感を有する部品の検査装置。5. A means for detecting a displacement of a part, a means for detecting a load applied to the part, and a displacement-load curve of the part based on the displacement signal and the load signal are defined as a function for pushing the part and a function for separating the part. A means for approximating, a starting point A indicating the start from the approximate function when pressing, a maximum value of the load are obtained, and a maximum point B at which the maximum value of the load is obtained by obtaining the displacement at this time and a minimum value of the load are obtained. In addition, a minimum point C at which the displacement at this time is obtained and a minimum value of the load is detected, an end point D indicating the end is detected, and a starting point E indicating the start and a minimum value of the load are obtained from the approximate function when separating. In addition, the minimum point F that obtains the minimum value of the load by obtaining the displacement at this time, the maximum value of the load that also obtains the maximum value of the load that also obtains the displacement at this time, and the end point that indicates the end Click feeling characterized by having means for detecting H Inspection device for parts having a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6815692A JPH05273083A (en) | 1992-03-26 | 1992-03-26 | Method and its device for inspecting parts having click feeling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6815692A JPH05273083A (en) | 1992-03-26 | 1992-03-26 | Method and its device for inspecting parts having click feeling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05273083A true JPH05273083A (en) | 1993-10-22 |
Family
ID=13365612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6815692A Pending JPH05273083A (en) | 1992-03-26 | 1992-03-26 | Method and its device for inspecting parts having click feeling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05273083A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07254319A (en) * | 1994-03-15 | 1995-10-03 | Matsushita Electric Ind Co Ltd | Touch feeling inspection device for pushbutton switch |
| JP2002340964A (en) * | 2001-05-21 | 2002-11-27 | Furukawa Electric Co Ltd:The | Connection inferiority detection device in connection of flat cable and connection terminal |
| KR101108325B1 (en) * | 2008-05-19 | 2012-01-25 | 매니토웍 크레인 그룹 프랑스 에스에이에스 | Method of determining and reconstructing changes in load on lifting gear |
-
1992
- 1992-03-26 JP JP6815692A patent/JPH05273083A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07254319A (en) * | 1994-03-15 | 1995-10-03 | Matsushita Electric Ind Co Ltd | Touch feeling inspection device for pushbutton switch |
| JP2002340964A (en) * | 2001-05-21 | 2002-11-27 | Furukawa Electric Co Ltd:The | Connection inferiority detection device in connection of flat cable and connection terminal |
| KR101108325B1 (en) * | 2008-05-19 | 2012-01-25 | 매니토웍 크레인 그룹 프랑스 에스에이에스 | Method of determining and reconstructing changes in load on lifting gear |
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