JPS6353494B2 - - Google Patents
Info
- Publication number
- JPS6353494B2 JPS6353494B2 JP55136004A JP13600480A JPS6353494B2 JP S6353494 B2 JPS6353494 B2 JP S6353494B2 JP 55136004 A JP55136004 A JP 55136004A JP 13600480 A JP13600480 A JP 13600480A JP S6353494 B2 JPS6353494 B2 JP S6353494B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- terminal
- receiving surface
- crimped
- electric wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
【発明の詳細な説明】
この発明は、被覆電線の端部被覆をはぎ取つた
部分に端子を圧着してなる電線における端子圧着
状態の良否を光学的に検査する装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for optically inspecting the quality of terminal crimping of an electric wire in which a terminal is crimped to a portion of a covered electric wire whose end coating has been stripped off.
従来、被覆電線に端子を圧着するには、まず公
知の被覆電線切断・被覆はぎ取り機により、被覆
電線をある一定の長さに切断するとともにその端
部の被覆をある一定長さ分だけはぎ取り、そして
公知の端子圧着機により一定形状および寸法の端
子を前記はぎ取つた部分の所定の位置に正確に圧
着する必要がある。すなわち第１図には端子１
（実施例では雌端子であり、第１つかみ部１ａ、
第２つかみ部１ｂ、雄端子との接続部１ｃとより
なる）を被覆電線２の端部に圧着した状態を示し
ているが、この場合、つかみ部１ａは、電線２の
被覆部２ａを全周に渡り、かつその被覆端部から
ある長さ分Ｌだけ余して確実につかみ、またつか
み部１ｂは、電線２の導体部２ｂを全周に渡り確
実につかむようにして圧着する必要がある。しか
しながら端子圧着の際、まれではあるが前述のつ
かみ位置を逸脱し、例えばつかみ部１ａが導体部
２ｂの一部をつかんだり、あるいはつかみ部１ｂ
が被覆部２ａの一部をもつかんだり、あるいはま
たつかみ部１ａが被覆部２ａを全周に渡つて確実
につかまなかつたりして、端子圧着不良を生じる
ことがある。従来端子圧着状態の良否は人間の目
によつて判別されており、その作業が面倒であつ
た。 Conventionally, in order to crimp a terminal onto an insulated wire, first the insulated wire is cut to a certain length using a known insulated wire cutting/stripping machine, and the coating at the end of the insulated wire is stripped off to a certain length. Then, it is necessary to accurately crimp a terminal of a predetermined shape and size at a predetermined position on the stripped portion using a known terminal crimping machine. In other words, in Figure 1, terminal 1
(In the embodiment, it is a female terminal, and the first gripping portion 1a,
The second gripping portion 1b and the connecting portion 1c with the male terminal are shown crimped to the end of the covered wire 2. In this case, the gripping portion 1a completely covers the covering portion 2a of the wire 2. It is necessary to securely grip the conductor portion 2b of the electric wire 2 over the entire circumference and to securely grip the conductor portion 2b of the electric wire 2 over the entire circumference. However, when crimping the terminal, although it is rare, the gripping portion 1a may deviate from the above-mentioned gripping position, for example, the gripping portion 1a may grip a part of the conductor portion 2b, or the gripping portion 1b
The gripping portion 1a may grip a part of the sheathing portion 2a, or the gripping portion 1a may not securely grip the sheathing portion 2a over its entire circumference, resulting in poor terminal crimping. Conventionally, the quality of terminal crimping has been determined by human eyes, which is a laborious process.
こうした作業を光学装置で行うことは、多方面
で行われており、特開昭54−136888には電線への
マーキングの良否等を検査する装置が開示されて
おり、特開昭52−45956には糸表面への添加物の
付着状態の良否を測定する装置が開示されている
が、被覆電線の端子圧着状態を光学的に検査する
場合、被覆部分と端子部分からの反射光量の差が
充分でないことから圧着状態の良否判別は非常に
むずかしいという問題がある。 Performing such work using optical equipment has been carried out in many fields, and JP-A-54-136888 discloses a device for inspecting the quality of markings on electric wires, and JP-A-52-45956 discloses a device for inspecting the quality of markings on electric wires. discloses a device for measuring the quality of adhesion of additives to the thread surface, but when optically inspecting the terminal crimping state of a covered wire, there is a sufficient difference in the amount of light reflected from the coated part and the terminal part. Therefore, there is a problem in that it is very difficult to determine whether the crimped state is good or bad.
この発明は前述事情に鑑みなされたものであ
り、一定形状および寸法の端子１を、被覆はぎ取
り長さや外径や導体部２ｂの径が一定の電線２に
圧着した端子圧着電線の端子圧着状態の良否を光
学的に検査する装置を提供せんとするものであ
り、以下実施例を詳述する。 This invention was made in view of the above-mentioned circumstances, and it is a terminal crimped state of a terminal crimped electric wire in which a terminal 1 of a certain shape and size is crimped to an electric wire 2 whose sheath stripping length, outer diameter, and conductor portion 2b diameter are constant. The present invention aims to provide a device for optically inspecting quality, and examples thereof will be described in detail below.
３は、光源である。 3 is a light source.
４は、光源３の先端側に設けられ、検査すべき
端子圧着電線の被覆部２ａの外周の色に対する余
色フイルタである。 Reference numeral 4 denotes an extra color filter provided on the tip side of the light source 3, which controls the color of the outer periphery of the covering portion 2a of the terminal crimped electric wire to be inspected.
５は、フイルタ４と光フアイバ６を介して接続
した公知の集光レンズ内蔵筒体である。この筒体
５先端は、検査すべき端子圧着電線の端子圧着部
に向けられている。そして筒体５からの光は、投
光軸C1に沿つて端子圧着部を照射するべくなさ
れている。 Reference numeral 5 denotes a known condensing lens built-in cylinder connected to the filter 4 via an optical fiber 6. The tip of this cylindrical body 5 is directed toward the terminal crimped portion of the terminal crimped electric wire to be inspected. The light from the cylindrical body 5 is designed to irradiate the terminal crimping portion along the light projection axis C1 .
７は、投光軸C1に対する反射光軸C2上に配置
した受光体であり、第２図においてその下面が受
光面７ａとして形成され、多数の受光素子が配列
されている。また受光体７には、受光面７ａを一
定方向（端子圧着電線の軸方向）に走査して、連
続波形信号に変換する公知のスキヤン手段７ｂが
内蔵されている。 Reference numeral 7 denotes a photoreceptor disposed on the reflection optical axis C2 with respect to the light projection axis C1 , and in FIG. 2 , the lower surface thereof is formed as a light-receiving surface 7a, and a large number of light-receiving elements are arranged. Further, the photoreceptor 7 has a built-in known scanning means 7b that scans the light-receiving surface 7a in a fixed direction (the axial direction of the terminal-crimped electric wire) and converts it into a continuous waveform signal.
８は、反射光軸C2上に、かつ端子圧着電線と
受光面７ａとの間に配置した集光レンズである。 Reference numeral 8 denotes a condenser lens arranged on the reflection optical axis C2 and between the terminal crimped electric wire and the light receiving surface 7a.
９は、コンピユータのメモリであり、端子圧着
電線の端子圧着状態を良とする、一定形状および
寸法の端子１と被覆を一定長さ分だけはぎ取つた
電線２との相互の限界位置｛第３，４図イ参照｝
において、手段７ｂから出力されるべき信号｛第
３，４図ロ参照｝が情報として予め記録されてい
る。 Reference numeral 9 is a memory of the computer, and the mutual limit position {third , see Figure 4 A}
In this case, the signal to be output from the means 7b {see FIGS. 3 and 4 B} is recorded in advance as information.
１０は、手段７ｂからの出力情報が、メモリ９
に記録された情報と比較してその許容内にあるか
否か、すなわち手段７ｂからの出力情報におい
て、被覆端部Ｌの長さに相当する部分が、第３図
ロのl1よりも小で、かつ第４図ロのl2よりも大で
あるか否かを判別する手段である。 10, the output information from the means 7b is stored in the memory 9.
In other words, in the output information from the means 7b, whether the portion corresponding to the length of the covering end L is smaller than l 1 in FIG. , and is larger than l 2 in FIG. 4B.
１１は、手段１０における判別結果、前記手段
７ｂからの出力情報において、被覆端部Ｌの長さ
に相当する部分が、l1より大またはl2より小であ
つたときに、警報を発したりランプ表示したりす
る公知の警告手段である。 11 issues an alarm when, as a result of the determination in the means 10, a portion corresponding to the length of the covering end L is larger than l 1 or smaller than l 2 in the output information from the means 7b; This is a known warning means such as displaying a lamp.
さらにこの実施例の作用を述べる。 Furthermore, the operation of this embodiment will be described.
まず端子圧着電線を、第２図のように、所定位
置に、かつ端子１の各つかみ部１ａ，１ｂの端部
が上向きとなるようにして固定しておく。そして
光源３により投光すると、その光のうち、電線２
の被覆色に対する余色の光だけがフイルタ４を通
過し、その他の色光はフイルタ４に吸収される。
そしてフイルタ４を通過した余色光は、フアイバ
６、筒体５を経て光軸C1に沿い、端子圧着電線
の端子圧着部を照射する。すると、その反射光は
光軸C2に沿いレンズ８を経て受光面７ａに至る。
このとき前記反射光のうち端子１および導体部２
ｂからの光は、前記余色光のまま反射されるが、
被覆部２ａからは、フイルタ４の色と電線２の被
覆色とが相互に余色の関係にあるため、ほとんど
反射しない。従つて反射光のうち、ほぼ端子１お
よび導体部２ｂからの光だけが受光面７ａに到達
することになる。 First, as shown in FIG. 2, the terminal crimped electric wire is fixed in a predetermined position with the ends of the gripping portions 1a and 1b of the terminal 1 facing upward. Then, when light is emitted from the light source 3, some of the light is emitted from the electric wire 2.
Only the light of colors extra to the coating color passes through the filter 4, and the other colors are absorbed by the filter 4.
Then, the extra color light that has passed through the filter 4 passes through the fiber 6 and the cylindrical body 5, along the optical axis C1 , and irradiates the terminal crimping portion of the terminal crimping electric wire. Then, the reflected light passes through the lens 8 along the optical axis C2 and reaches the light receiving surface 7a.
At this time, among the reflected light, terminal 1 and conductor part 2
The light from b is reflected as the extra color light, but
Almost no light is reflected from the coating portion 2a because the color of the filter 4 and the coating color of the electric wire 2 are in a complementary color relationship with each other. Therefore, of the reflected light, almost only the light from the terminal 1 and the conductor portion 2b reaches the light receiving surface 7a.
そして受光面７ａの前記受光素子により光を電
気信号に変換し、さらには手段７ｂにより端子圧
着電線の軸方向にスキヤンして連続波形信号に変
換する。さらにはまたその信号をメモリ９に予め
記録しておいた２種の情報｛第３，４図ロ参照｝
と比較し、被覆端部Ｌの長さに相当する部分の信
号が、l1より小でl2より大であるか否かを手段１
０で判別する。もし被覆端部Ｌの長さに相当する
部分の信号がl1より大かまたはl2より小であれば、
つかみ部１ｂが被覆部２ａの一部をつかんでいた
り、つかみ部１ａが導体部２ｂの一部をつかんで
いたりする可能性を有することになり、不良品と
して手段１１により警告が発せられることにな
る。 The light is converted into an electrical signal by the light receiving element on the light receiving surface 7a, and further converted into a continuous waveform signal by scanning in the axial direction of the terminal crimped wire by means 7b. Furthermore, the signal is also recorded in the memory 9 in advance as two types of information {see Figures 3 and 4 B}.
, and determine whether the signal of the portion corresponding to the length of the covered end L is smaller than l 1 and larger than l 2 using means 1.
Distinguish with 0. If the signal of the portion corresponding to the length of the covered end L is larger than l 1 or smaller than l 2 , then
There is a possibility that the gripping part 1b is gripping a part of the covering part 2a, or the gripping part 1a is gripping a part of the conductor part 2b, and a warning will be issued by the means 11 as a defective product. Become.
また第５図イのように、端子１と電線２との相
互位置は良であつても、つかみ部１ａが被覆部２
ａを全周に渡つて確実につかんでいない場合は、
手段７ｂからの出力信号は第５図ロのようにな
り、被覆端部Ｌの長さに相当する部分がきわめて
大となることになり、不良品として手段１１によ
り警告が発せられる。 Furthermore, as shown in FIG.
If you are not gripping a securely all the way around,
The output signal from the means 7b becomes as shown in FIG. 5B, and the portion corresponding to the length of the covering end L becomes extremely large, and a warning is issued by the means 11 as a defective product.
前述説明は実施例であり、例えばフイルタ４は
光軸C2上に配置してもよく、両光軸C1，C2上に
配置してもよい。その他各構成の均等物との置換
もこの発明の技術範囲に含まれることはもちろん
である。 The above description is an example, and for example, the filter 4 may be arranged on the optical axis C 2 or on both optical axes C 1 and C 2 . It goes without saying that the technical scope of the present invention also includes the replacement of each component with equivalents.
この発明は前述したように、余色作用を利用し
たので、受光面７ａには、端子１および導体部２
ｂに対応する部分と被覆部２ａに対応する部分と
の明暗が明確に映し出される。従つてこれをスキ
ヤンして電気的な連続波形信号に変換し、この信
号のうち被覆端部Ｌの長さに相当する部分の値が
予めコンピユータに記録しておいた限界情報値
l1，l2より大か小かを判別すれば、端子圧着状態
の良否を正確に検査することができる。 As described above, this invention utilizes the extra color effect, so the terminal 1 and the conductor 2 are provided on the light receiving surface 7a.
The contrast between the portion corresponding to b and the portion corresponding to the covering portion 2a is clearly displayed. Therefore, this is scanned and converted into an electrical continuous waveform signal, and the value of the portion of this signal corresponding to the length of the covering end L is the limit information value recorded in advance in the computer.
By determining whether it is larger or smaller than l 1 or l 2 , it is possible to accurately test whether the terminal is crimped.
図はいずれもこの発明の一実施例を示し、第１
図は検査すべき端子圧着電線の説明図、第２図は
全体概略説明図、第３，４図の各イは電線と端子
との相互圧着位置において端子圧着状態を良とす
る限界位置説明図、第３，４図の各ロは前記限界
位置において走査手段から出力される連続波形信
号説明図、第５図は作用説明図、である。
図において、１……端子、２……電線、２ａ…
…被覆部、３……光源、C1……投光軸、C2……
反射光軸、４……余色フイルタ、７ａ……受光
面、７ｂ……走査手段、９……コンピユータのメ
モリ、１０……判別手段、である。
Each of the figures shows an embodiment of the present invention.
The figure is an explanatory diagram of the terminal crimped electric wire to be inspected, Figure 2 is an overall schematic explanatory diagram, and each A in Figures 3 and 4 is an explanatory diagram of the limit position at which the terminal crimping condition is good at the mutual crimping position of the electric wire and terminal. , 3 and 4 are explanatory diagrams of continuous waveform signals output from the scanning means at the limit position, and FIG. 5 is an explanatory diagram of the operation. In the figure, 1... terminal, 2... electric wire, 2a...
...covering part, 3... light source, C 1 ... light projection axis, C 2 ...
Reflection optical axis, 4... extra color filter, 7a... light receiving surface, 7b... scanning means, 9... memory of computer, 10... discriminating means.
Claims (1)
投光する投光手段と、この投光手段から被照射物
である端子圧着電線の端子圧着部に投光した光の
反射光に向つて配置した受光面と、この受光面を
前記端子圧着部の軸方向に沿つて走査する走査手
段と、前記端子圧着状態の許容範囲を表示する波
形情報を記憶したメモリと、このメモリの出力情
報と前記走査手段の出力情報を比較する比較手段
とを具備してなり、前記光源又は前記受光面の少
なくとも一方に、前記端子圧着部に圧着された圧
着端子の被覆の色に対する余色フイルタを設けて
なる、端子圧着電線の端子圧着状態検査装置。1. A light source, a light projecting means for projecting light from the light source in the form of a narrow beam, and a beam directed toward the reflected light of the light projected from the light projecting means to the terminal crimped part of the terminal crimped electric wire that is the object to be irradiated. A light-receiving surface arranged, a scanning means for scanning the light-receiving surface along the axial direction of the terminal crimping part, a memory storing waveform information indicating an allowable range of the terminal crimping state, and output information of this memory. a comparison means for comparing output information of the scanning means, and an extra color filter is provided on at least one of the light source or the light receiving surface for the color of the coating of the crimp terminal crimped to the terminal crimp section. This is a terminal crimping condition inspection device for terminal crimped electric wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13600480A JPS5760249A (en) | 1980-09-29 | 1980-09-29 | Terminal compression status inspecter for terminal compressed wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13600480A JPS5760249A (en) | 1980-09-29 | 1980-09-29 | Terminal compression status inspecter for terminal compressed wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5760249A JPS5760249A (en) | 1982-04-12 |
| JPS6353494B2 true JPS6353494B2 (en) | 1988-10-24 |
Family
ID=15164934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13600480A Granted JPS5760249A (en) | 1980-09-29 | 1980-09-29 | Terminal compression status inspecter for terminal compressed wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5760249A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942436A (en) * | 1982-08-09 | 1984-03-09 | Sumitomo Electric Ind Ltd | How to inspect crimp terminals |
| US4555799A (en) * | 1983-10-24 | 1985-11-26 | Sumitomo Electric Industries, Ltd. | Method for inspecting crimp bonded terminals |
| JPS60183543A (en) * | 1984-02-29 | 1985-09-19 | Shin Meiwa Ind Co Ltd | Terminal crimping condition inspection method for terminal crimping electric wire |
| JPS60198473A (en) * | 1984-03-21 | 1985-10-07 | Shin Meiwa Ind Co Ltd | Inspecting device for terminal crimping state of terminal crimped electric wire |
| JP2562430B2 (en) * | 1984-11-08 | 1996-12-11 | 古河電気工業株式会社 | Defect inspection method for crimp terminals |
| JP2795044B2 (en) * | 1992-03-26 | 1998-09-10 | 住友電装株式会社 | Lighting method and image processing method for image processing inspection of crimp terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245956A (en) * | 1975-10-09 | 1977-04-12 | Kurabo Ind Ltd | Method and system for measuring distribution of substance sticked to s urface of string |
| JPS5853861B2 (en) * | 1978-04-14 | 1983-12-01 | 小林 彬 | Surface defect detection device |
-
1980
- 1980-09-29 JP JP13600480A patent/JPS5760249A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5760249A (en) | 1982-04-12 |
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