JPH0642166Y2 - Multi-core wire end restraint inspection device - Google Patents

Description

[Detailed Description of the Invention] A. Industrial Field of Application The present invention is a multi-core wire end restraint inspection device for inspecting the protrusion of a core wire in a portion where the ends of a multi-core wire such as a multi-core cable are bundled and crimped. Regarding

B. Outline of the Invention The present invention is an inspection device for a defective core wire protrusion in a portion where the end portions of a multi-core cable such as a multi-core cable are bundled and crimped and fixed, and the transfer direction is within the transfer range of the core wire crimping part of the multi-core wire. Two wire brushes, each having a brush width and having a brush tip portion capable of contacting the upper surface and the lower surface of the core wire crimping portion, are arranged at predetermined intervals in the transfer direction, and a camera for inputting an image processing device is provided downstream of the transfer direction. By arranging it, without pulling the core wire crimping part to the rear side in the transfer direction by the wire brush, only the whisker-shaped core wire protruding around the crimping part is pulled out to the rear side in the transfer direction so as not to be in the shadow of the core wire crimping part. The image pickup device is used so that a defective product can be surely detected by the image processing device.

C. Conventional Technology Conventionally, a terminal member 1 may be attached to an end portion of a multi-core wire such as a multi-core cable as illustrated in FIG.

In the illustrated terminal member 1, a core wire crimping portion 3 and a cover crimping portion 4 are integrally formed at the root end of a substantially U-shaped claw portion 2.

Then, the core wire crimping portion 3 is covered with the coating 6 of the multi-core cable 5.
The end portion of the bare core wire 7 extending from the end portion of is wrapped around and bundled and fixed by crimping. Furthermore, the cover crimping part 4 is
The end portion of the multi-core cable coating 6 is wound and crimped.

In this way, the terminal member 1 is pressure-bonded to the end portion of the multi-core cable 5 to be installed and used.

However, in the work of attaching the terminal member 1 to the multi-core cable 5 as described above, as shown in FIG.
Some core wires 7a and 7b may be ejected from the so-called beard, causing a defective state.

Recently, an automatic inspection device is used to inspect a defective state in which such several core wires 7a and 7b are ejected. In this inspection device, the core wire crimping portion 3 is captured by a video camera, the image thereof is image-processed by a microcomputer, and when the core wires 7a and 7b protruding in a beard shape are detected, they are detected as defective products. It was a thing.

In the conventional inspection device as described above, for example, the fourth
As shown in the figure, the core wire crimping portion 3 that bundles and fixes the core wire ends
It is possible to detect the beard-shaped core wires 7a and 7b protruding laterally from the core wire 7c, but it is not possible to detect the core wire 7c which is crimped to the outer peripheral portion of the core wire crimping portion 3 and is close to it. is there. Further, even when a beard-shaped core wire protrudes from the video camera side to the back side portion which is a shadow of the core wire crimping portion 3, the detection is impossible. Therefore, the conventional inspection device has a problem in that the core wires protruding from the core wire crimping portion cannot be sufficiently detected, and the reliability of the inspection is lowered.

Therefore, in Applicant's Japanese Patent Application No. 63-55492, the applicant has made it possible to reliably detect a whisker-shaped core wire protruding from the core wire crimping part where the ends of the multicore wire are bundled and fixed. I proposed the inspection device.

D. Problem to be Solved by the Invention However, in the inspection device for a multi-core wire end restraint portion according to the above-mentioned prior application, the wire brush for pulling out the beard-shaped core wire backward in the terminal transfer direction capable of inspecting is pinched by the core wire crimping portion. Since the core wire crimping part is held by the opposing wire brushes, the terminal member faces diagonally rearward in the transfer direction, and the whisker-shaped core wire that is about to be pulled out rearward in the transfer direction by the wire brush overlaps this. , The beard-shaped core wire could not be pulled out from the core wire crimping portion so that image processing could be reliably performed.

The present invention has been made in view of the above problems of the above-mentioned prior application, and an object of the present invention is to attach a whisker-shaped core wire to a core wire crimping portion without changing the direction of the terminal member by a wire brush. An object of the present invention is to provide an inspection device for a multi-core wire end restraint portion that can be pulled out further backward in the transfer direction and can reliably detect a mustache-shaped core wire.

E. Means for Solving the Problems In order to achieve the above object, the inspection device for a multi-core wire end restraint part of the present invention is a device for inspecting a core wire protrusion defect in a part where the multi-core wire end parts are bundled and crimped and fixed. A wire brush having a brush width in the transfer direction and having a brush tip in contact with the upper surface of the core wire crimping portion, and a brush tip having a brush width in the transfer direction within the transfer range of the core wire crimping portion of the multi-core wire. Wire brushes that can contact the upper surface of the core wire crimping portion are arranged in the transfer direction at predetermined intervals, and a camera for inputting an image processing device is arranged on the downstream side in the transfer direction.

F. In operation, since the lower wire brushes each have a brush width in the transfer direction of the core wire crimping part, the whisker-shaped core wire of the core wire crimping part can be reliably pulled out.

Since the core wire crimping portion is not held by the upper and lower brushes, it does not tilt rearward in the transfer direction.

The whisker-shaped core wire pulled out from the core wire crimping portion rearward in the transport direction is imaged by an input camera of the image processing apparatus and image processing is detected.

G. Example Hereinafter, an example of the inspection device of the multi-core wire end restraint part of the present invention,
This will be described with reference to FIGS. 1 to 3. In addition, in FIGS. 1 to 3, parts corresponding to those in FIG. 4 are denoted by the same reference numerals, and are provided for convenience of description.

FIG. 1 is a schematic explanatory view of the apparatus of this example, 3 is a core wire crimping portion, 5
Is a multi-core cable, 7 is its core wire, 7c is a whisker-like core wire protruding above the core wire crimping portion 3, and 7d is a whisker-like core wire protruding below the core wire crimping portion 3. is there.

The multi-core cable 5 is sequentially sent to the measuring station of the inspection device by the carrying device.

As this conveying device, for example, a belt conveyor as shown in FIGS. 2 and 3 is used. This consists of a thick groove 9a having a circular cross-section with the same diameter as the multi-core cable 5 and a narrow groove 9b continuing to open above it, at a predetermined interval on a conveyor belt 8 in which an elastic material is formed into a long belt shape. A cable fixing groove 9 is formed.

Then, the multicore cables 5 are fitted into the respective thick grooves 9a to support the multicore cables 5, and the terminal member 1 attached to the end of each multicore cable 5 is provided near one side of the conveyor belt 8. It is arranged to project.

In the terminal member 1 of the cable transported by the transport device, the first member is attached to each predetermined portion within the passage range of the core wire crimping portion 3.
As shown in Fig. 2 and Fig. 2, the wire brushes 10 ₁ , 10
₂ and the measuring station 11 are arranged.

The wire brushes 10 ₁ and 10 ₂ are arranged at positions separated from each other by a predetermined distance in the transfer direction of the core wire crimping portion 3 so that the brush tips contact the upper surface and the lower surface of the passing core wire crimping portion 3, respectively. The orientation is set so that the width of the brush comes in the transfer direction.

Then, in the arrangement of FIG. 2, first, the lower wire brush 10
₁ contacts the lower surface of the core wire crimping portion 3, then the upper wire brush 10 ₂ contacts the upper surface of the core wire crimping portion, and both wire brushes 10 ₁ and 10 ₂ simultaneously contact the core wire crimping portion 3, It is designed so that you cannot hold it. By selecting the hardness of the wire brushes 10 ₁ and 10 ₂ , it is possible to prevent the terminal member 1 and the like from being scratched.

Further, the measuring station 11 has a video camera 17 at a predetermined position in the vicinity of the downstream of the wire brushes 10 ₁ and 10 ₂ in the transfer direction of the core wire crimping portion 3 and is perpendicular to the plane of the core wire crimping portion 3 in the conveying direction. Install with the field of view oriented. Further, the video camera 17 is configured to be connected to an image processing inspection device such as a microcomputer (not shown).

Next, the operation of the apparatus of this example configured as described above will be described.

First, the multi-core cable 5 on which the terminal member 1 is installed is sequentially sent to the wire brushes 10 ₁ and 10 ₂ by the conveyor belt 8.

When the core wire crimping portion sequentially passes through the portions of the wire brushes 10 ₁ and 10 ₂ , for example, as shown in the drawing, when there is a whisker-shaped core wire 7c protruding in the outer peripheral portion of the upper portion of the core wire crimping portion 3, If there is a whisker-shaped core wire 7d protruding below the core wire crimping portion 3, the beard-shaped core wires 7c and 7d are sequentially moved backward by the wire brushes 10 ₁ and 10 ₂ in the transfer direction. Is pulled out to the side. In this state, the multi-core cable 5 is transferred to the measuring station 11 by the transfer device. Then, the video camera 17 photographs the core wire crimping portion 3. At this time, if there are core wires 7a, 7b, 7c or 7d protruding in a beard shape in the core wire crimping portion 3, these are
Since the wire brushes 10 ₁ and 10 ₂ are always drawn out from the shadow of the core wire crimping portion 3 so as to flutter backward, these are always taken by the video camera.

In this way, the core wires 7a, 7b, 7c, 7d protruding like a beard
If there is, the video signal of the video camera 17
The image is processed by an image processing unit of a microcomputer (not shown) so that it is detected as a defective product and sent to a later recovery and correction step.

In addition, although the case where the terminal member 1 is installed at the end portion of the multi-core cable 5 has been described in the above-described embodiments, the present invention is not limited to this, and the multi-core cable and the multi-core cable are not limited to this. It can also be applied to a connecting portion or the like that is crimped and connected by a connecting fitting. Also, the wire brush 10 ₁ ,
Installation position of 10 ₂ and the video camera 17 is not limited to that shown in Figure 1.

H. Effect of the Invention Since the present invention is configured as described above, it has the following effects.

Since the upper and lower wire brushes do not contact the terminal part and hold the terminal part at the same time, the wire brush does not direct the terminal part to the rear in the transfer direction. The core wire can be pulled out backward in the transfer direction so as not to overlap the terminal portion.

Since the width of the wire brush is long enough in the transfer direction,
The beard-shaped core wire can be reliably pulled out.

Since the core wire protruding like a beard can be pulled out backward so as not to overlap the terminal portion, the reliability of the inspection is significantly improved.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing an embodiment of an inspection device for a multi-core wire end restraint part of the present invention, FIG. 2 is an enlarged plan view showing a main part of the transfer device, and FIG. Fig. III-III line sectional view, Fig. 4 is an enlarged plan view of an essential part showing a terminal member installation portion of a multi-core cable. 1 ... Terminal member, 3 ... Core wire crimping part, 5 ... Multi-core cable, 7 ... Core wire, 10 ... Wire brush, 17 ... Video camera.

Claims (1)

[Scope of utility model registration request] 1. A device for inspecting a core wire pop-out defect of a portion where end portions of multi-core wires are bundled and crimped and fixed, wherein a brush width is provided in a transfer direction within a transfer range of a core wire crimping portion of the multi-core wire, and a brush tip portion. Is a wire brush capable of contacting the upper surface of the core wire crimping portion and a wire brush having a brush width in the transporting direction and having a brush tip capable of contacting the upper surface of the core wire crimping portion, are respectively arranged in the transporting direction at a predetermined distance from each other, and An inspection device for a multi-core wire end restraint portion, wherein a camera for inputting an image processing device is arranged on the downstream side in the transfer direction.