JPS60183543A - Inspecting method of terminal clamping state of terminal clamped electric wire - Google Patents

Abstract

PURPOSE:To perform secure inspection with simple constitution by marking the coating of an electric wire where a terminal is clamped, and inspecting the mark after the terminal is clamped to an electric wire terminal. CONSTITUTION:The coating 2c of the electric wire 2 is marked with fluorescent paint where the terminal 1 is clamped, and the terminal 1 is fixed to the part by clamping. Further, the terminal clamped part is irradiated with ultraviolet light from a light source 3 through an optical fiber 6 and a cylindrical body 5. Fluorescent light from the mark at the terminal clamped part is converged through a condenser lens 8 and photodetected by a photodetector 7, whose output information is compared by a comparator 10 with information from memory 9 to decide on the quality of the terminal clamping state, thereby displaying the decision result of the comparator on a display means 11.

Description

Detailed Description of the Invention (Field of Application) This method 1j-4 is a method for optically determining the quality of terminal crimping in an electric wire in which a terminal is crimped on the end portion of a wire to be hooked. This relates to improvements in the method of testing.

(Prior art) When crimping a wire to the end of a colored TIL wire, a certain length is peeled off from the end of the covered electrical glue 1 cut to a certain length, and a certain shape and size are removed. For example, as shown in Fig. 1, the first gripping part 1a extends around the entire circumference of the covering part 2a, and only a certain length is left over from the end of the covering part 1. and firmly grasp it, −
Further, the second gripping portion 1b has eight holes for firmly gripping the conductor portion 2b over the entire circumference and attaching it to the LF. However, if the first gripping part 1a grips the conductor part 2b, the second gripping part 1b grips the fished part 2a, or the first gripping part +
-'a presses the Q part 2a at 116 [pressure f without actually grasping it]
I may be given an i. Judging whether the terminal crimping condition is good or not by 1-1 visual inspection would not be accurate as described in the previous example. -[The automation of inspections is slowing down by one wave due to the large number of human hands. -6024.
Issue 9 has been released.

However, this one projects light onto the inspected surface of the double line terminal,
The reflected light was received by the TV camera magko's line sensor, and the coating, terminal, and barrel body were identified by their different colors. Therefore, it is necessary to identify colors, and even with slight changes in the position and appearance of the electric wire being inspected, there are large fluctuations in the amount of reflection, making it difficult to obtain images with good contrast, making it difficult to conduct highly reliable inspections. It was difficult. 1, the configuration was complicated because the types and sizes of the electric wires were different and the color filters had to be replaced each time the coating color changed.

(Objective of the Invention) The present invention has been made by focusing on the problems of the prior art as described above, and provides reliable inspection and power for inspecting the crimped condition of a terminal crimped electric wire with a simple structure. The purpose is to provide law.

(Composition 414 of the invention) The structure of this invention is: 1. Put a mark in front of the terminal pressure 11 on the seedling of the electric wire at the part where the terminal is crimped, It is characterized in that after crimping, light is emitted, the light is received, and the inspection is performed using the image information. .

(Example) Preferred embodiments will be described below with reference to the drawings.

In Fig. 2, the electric wire 2 is marked by spraying fluorescent paint on the coating (2c) of the part where the terminal is crimped, and then drying it.
Peel off the cover and crimp terminal 1.

3 is a light source of ultraviolet light.

4 is light 1111 consisting of the light projection axis 4a of the light from the light source 3 and the reflected light 11 of the reflected light from the terminal to be inspected.

5 is a well-known body (with a built-in lens 11) connected via an optical fiber 6. The tip of this 11i3 body 5 is ψ;1. : Child pressure foil part (,
4, which is directed at
There is a concave groove that irradiates the i (along if 4 a - J and end J'I - f: non) part.

7 is a photoreceptor placed on the reflection optical axis 41) with respect to the light emitting axis, and in FIG. The photoreceptor 7 has a built-in known scanning means 7b that scans the light receiving direction 7a in a fixed direction (the axial direction of the terminal pressure A' line) 712 times and converts it into a continuous waveform signal.

8 is on the reflected light 'lt+4 b (/C, cut't
44 Ik It % ltJ This is a condensing lens arranged on the surface facing the light receiving surface 7a.

Then, the light source 3, the cylinder body 5 with a built-in condensing lens, and the photoreceptor 7~
and the condenser lens 8 are installed in a dark place.

9 is a memory of a convenience store, and is a terminal of a certain shape and size that makes the terminal pressure Xi state of the terminal crimped electric wire good.]
In the mutual limit device (Figs. 3 and 4 (A)), the signal to be outputted from the means 7b is (Chapter 3.4
[Refer to 1 (b) ii Q Is 0 10, which is recorded in advance as information, whether it is the output information from means 71) or whether it is within the permissible range when compared with the 1i information recorded in memory 9? In other words, according to the output information from the means 71), the portion corresponding to the length of the covering end is smaller than tl in FIG. 3(b), and tl in FIG. 4(b) It is a means of determining whether it is a dog or a dog.

11 is the determination result in the means 10, that in the output information from the means 7b, the portion corresponding to the length of the covering end is larger than tl or smaller than tl;
This is a known means of notification that displays/displays 9 lamps indicating that a kidney report has been issued.

Further, the operation of this embodiment will be described.

As shown in Fig. 2, place the J/Z terminal crimped electric wire 2 in the specified position, and so that the 71i and i portions of the gripping portions 1a, +1.1) of the end 1i1 are facing toward the ground] -Fix it -j
〈5. Then, when light source 3 is set to 42,
90 after fiber 6 and cylinder 5! i 4 a tcIQ
i, lI:i,: r-pressure3j electric<”14 (7)
1liif child LL Numabe is illuminated by Shiyu I light. However, since the part to be treated is coated with fluorescent paint, it emits fluorescence, but *:! a "The F part and the conductor part reflect ultraviolet light. These lights (along the bow-optical axis 4b, pass through the lens 8, and are received by the terminal 1 and the conductor part 2b. Since the light from the cover 2a is ultraviolet light, it is hardly received, but only the light from the covering part 2a is received by the light receiving surface 7a. The light receiving element on the surface 7a converts the light into electricity 4i.
Furthermore, the means 7b scans the terminal voltage 14 in the axial direction of the electric wire and converts it into a continuous waveform (U).Furthermore, the -4 signal is recorded in the memory 9 in advance.
(See Figures 3 and 4 middle)), the signal of the part corresponding to the length of the covering edge is smaller than t] and +
2, the means 10 determines whether or not the dog is a dog. If the signal at the portion corresponding to the length of the covering end L7 is greater than tl?
l (22.1: If it is small, the gripping part).b is gripping a part of the covering part 2a, gripping part 1a is gripping a part of the conductor part 2b, etc. Therefore, a warning will be issued as a defective product by means]1.

-4・As shown in Fig. 5 (a) (f
If you are not gripping a securely around the entire circumference, use method 7.
The output signal from b is as shown in Fig. 5 (portion), and the length of the end of the coating is very large, so a warning is issued by means 11 as a defective product. .

(Other Examples) The ultraviolet light used in the above examples usually has an intensity of 3000 to 40
Although the wavelength is about 0 0 A, other wavelengths can be used. If CCI) has characteristics that allow it to also receive ultraviolet light, an ultraviolet cut filter can be provided in front of the light-receiving surface.

The fluorescent paint to be applied is usually transparent so that it does not affect the color of the wire coating, but if there is no need to consider such effects, use a colored one. You can use it. Maguko, the mark is fluorescent coating instead of 14;l on the wire coating! Paint of a certain color,
Instead of ultraviolet light, it is also possible to use light from a normal light source.
Furthermore, it can also be made into a Dezo or other thin film form. 1
The area where the mark is applied is ↓, the entire circumference of the covering part is f'
c can be a part.

The effects of these embodiments are also the same as the previous embodiments.

(Effects) As described above, this invention projects light onto the satin LE 1f'i line (
-, Terminal I- (@Electric wire terminal crimping state inspection method In this case, the remarkable effect of being able to perform inspection reliably and using a simple +1/l configuration is lost.

[Brief explanation of the drawing]

Each of the figures shows an embodiment of the present invention, in which Fig. 1 is an explanatory diagram of a dHa crimped electric wire to be inspected, Fig. 2 is an overall schematic explanatory diagram, and each (a) of Figs. 3 and 4 shows an electric wire. An explanatory diagram of the limit position that makes the terminal crimping condition good at the mutual crimping position with the terminal,
3 and 4 (D) +4 are explanatory diagrams of the continuous U' tatami-shaped signal output from the scanning means at the limit position, and FIG. 5 is an explanatory diagram of the operation. In the figure, ■ Terminal, 2 - Wire, 2a - Sheathing part, 3
Light source, 4a Light projection axis, 4b...Reflection optical axis, 7a° Light receiving mechanism, 7b Scanning means, 9 Computer memory, J
O. Discrimination means. Applicant: ShinMaywa T-gyo Co., Ltd.

Claims (3)

[Claims] (1) Mark the covering of the glands and glands, and! Y, I'm done.
Light is projected onto the crimp part in front of the crimped wire 111J rL line, and the reflected light from the 1st (on the reflected optical axis for qll) The light receiving surface that receives IF light is scanned in a certain direction, and this scanning output is 1'# +1
Compare the information registered with the 4th child and find out that 7+' volume 1m
Detection by determining whether it is in the surrounding area! 1 to r
- W, 6i terminal crimping wire 5 is 1 (combined force method). (2) The mark is made of fluorescent paint, and the mark is made of fluorescent paint, and the mark is made of ultraviolet light. Crimp condition inspection power? (3) The terminal crimping state inspection force method for a terminal crimped electric wire according to claim 1, wherein the mark 13iJ is in a specific color.