JP3470513B2 - Inspection device for wire harness - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness inspector, and more particularly to a wire harness inspector used in a step of inspecting an automobile wire harness on an inspection drawing board, and more particularly to a continuity inspection of a wire bundle with a connector. And dimension inspection can be performed at the same time.

[0002]

2. Description of the Related Art Generally, a wire harness is composed of a wire bundle in which a wire is wound in a predetermined path and a tape is wound around the wire to form a wire.
Exterior parts such as clips and protectors are attached, and connection parts such as connectors are attached to the end portions of the bundle of electric wires branched.

In order to inspect such a wire harness, as shown in FIG. 7, the wire harness W / H is laid along the electric wire holder 2 on the inspection board 1 and each attachment part is predetermined. Attach it to the inspection jig placed at the position. For example, the clip CL that is sheathed on the wire bundle W is the clip inspection jig 3
The connector C attached to the end of the wire bundle W is attached to the continuity inspection jig 4. By properly mounting the clip CL on the clip inspection jig 3, the shape inspection and the mounting position from the reference point are dimensionally inspected. The continuity inspection jig 4 performs an inspection of the arrangement state of the wire bundle W and a dimension inspection from the branch point P to the mounting position of the connector C.

The wire harness W / H is a flexible wire bundle W.
Since it is composed of, a certain dimensional error is allowed in the position of the attachment part. However, if the inspection jigs for various mounting parts are correctly mounted and fixed at predetermined positions on the inspection drawing board 1, dimensional errors within the permissible range cannot be absorbed. It is difficult to attach it to the. Also, wire harness W / H
If the mounting jig is forcibly mounted on the inspection jig due to its flexibility, the mounting bracket may be damaged.

Regarding this point, the present applicant has previously proposed various inspection jigs for mounting parts in consideration of the dimensional error in the allowable range in Japanese Patent Laid-Open No. 7-37448. For example, as shown in FIG. 8, the clip inspection jig 3 has a right and left direction indicated by an arrow (a) in the figure by a dimensional error allowed in the length direction of the wire bundle W with respect to the regular mounting position. The error absorbing means 5 is slidable. As a result, even if the mounting position of each mounting component is displaced within the allowable range, the mounting component can be easily mounted on the inspection jig.

In this case, when the mounting parts such as clips mounted on the middle portion of the electric wire bundle are out of the allowable range and are long or short in relation to other mounting parts mounted before and after that position. , It is inspected because it cannot be mounted on the inspection jig.

[0007]

However, the error absorbing means that is slidable in the length direction of the wire bundle W as described above with respect to the continuity inspection jig that generally inspects the connector mounted on the end of the wire bundle. However, since there is no mounting part prior to the connector, the mounting can be performed even when the dimension from the branch point P of the wire bundle W to the connector C is too long.
Therefore, there arises a problem that an accurate dimension inspection from the branch point P cannot be performed.

Further, in the continuity inspection jig for inspecting the connector, it is necessary to bring the built-in probe pin into contact with each terminal. Therefore, it is necessary to position and mount the connector with high accuracy in the connector receiving portion of the continuity inspection jig. is there. However, the work of mounting the connector at the end of the wire bundle W in the connector receiving portion is not easy due to the bulging of the wire bundle. This means that the wire bundle W
Even if an error absorbing means that is slidable in the length direction of
The sliding range is small, the tension of the wire bundle W is not relaxed, and the poor workability is not improved.

The present invention has been made in view of the above-mentioned problems, and makes it possible to simultaneously conduct a continuity inspection of a connector attached to an end of an electric wire bundle and an attachment dimension inspection from a branch point, and at the same time, perform a continuity inspection. The challenge is to improve the workability of attaching the connector to the jig.

[0010]

In order to solve the above problems, the present invention fixes a connector holding portion for fitting and holding a connector attached to an end of an electric wire bundle of a wire harness on a jig base. A main body of a continuity inspection jig, which has an inspection portion provided with a probe for continuity inspection that can be operated to come in and out of contact with the connector holding portion, and an attachment fixed on the inspection drawing board of the wire harness. A base, a slide means for slidably mounting the jig base on the mounting base in the length direction of the electric wire bundle with a connector fitted and held in the connector holding portion; and a continuity inspection jig body for the mounting base. The slide of the jig base of the mounting base should be detected so that it is detected when the displacement position is out of the predetermined allowable range.
Dimension detection means attached at a position facing the track ,
There is provided a wire harness inspector, comprising: a means for urging the jig base in a direction in which the electric wire bundle with a connector fitted and held in the connector holding portion is extended.

Specifically, for example, the dimension detecting means is
The limit switches are attached to both ends of the side surface of the mounting base, and when the tip of the slide position of the jig base on the mounting base is out of the allowable range, the limit switches detect it.

According to the structure of claim 1, when the connector attached to the end of the electric wire bundle is mounted on the connector holding portion of the main body of the continuity inspection jig, the electric wire bundle with the connector is the jig base by the urging means. Due to the slide displacement of, it is in a straightened state. Based on the position of the jig base with respect to the mounting base in this state, the size detecting unit determines whether or not the size from the branch point of the electric wire bundle to the mounting position of the connector is within a predetermined error range. At the same time, the continuity test is performed depending on whether or not the probe of the inspection unit comes into contact with the connector fitted and held in the connector holding unit.

Further, when the connector at the tip of the electric wire bundle is attached to the connector holding portion, the connector holding portion together with the jig base can be pulled forward by the sliding means against the urging force of the urging means. The connector can be installed easily.

According to a second aspect of the present invention, the connector holding portion for fitting and holding the connector mounted on the end of the wire bundle of the wire harness is fixed on the jig base, and the connector holding portion is fixed. Continuity inspection jig main body, which has an inspection unit equipped with a probe for continuity inspection so that it can be moved in and out freely, and a mounting means fixed on the inspection board of the wire harness. A slide base that is slidably mounted through the slide base, and a dimension detecting unit that detects when the displacement position of the slide base with respect to the mounting base is out of a predetermined allowable range, and the slide base is located on one side. The position inspection jig body is provided with a biasing means for urging the position inspection jig body, and the continuity inspection jig body is replaceably mounted on the slide base of the position inspection jig body. There is provided a wire harness inspecting device, characterized in that the biasing means is acted on a continuity inspection jig main body in a direction to extend a wire bundle with a connector fitted and held in a connector holding portion. .

That is, the wire harness inspector of claim 2 is characterized in that the wire harness inspector of claim 1 is provided between the jig base of the continuity inspection jig body and the mounting base attached to the inspection drawing board. It has a slide base. According to the structure of claim 2, since the position inspection jig main body provided with the dimension detecting means is independent of the continuity inspection jig main body, the position inspection jig main body corresponds to different types of connectors. It can be shared with the body of the ingredient.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show a first embodiment, and the wire harness inspection device of the present invention comprises a continuity inspection jig body 10.
Is slidably mounted on a mounting base 16 fixed on the inspection drawing board 1 (shown in FIGS. 4 and 5). The continuity inspection jig body 10 includes a rectangular plate-shaped jig base 11 slidably mounted on a mounting base 16,
A connector holding portion 12 fixed on the jig base 11,
The inspection unit 13 is arranged to face the connector holding unit 12, and the operation unit 14 is arranged adjacent to the inspection unit 13.

The connector holding portion 12 fits and holds the connector C connected to the end of the wire bundle of the wire harness, and is fixed to one side of the jig base 11 by a bolt 12b or the like and opened upward. Wire bundle W in the receiving portion 12a
The connector C attached to the terminal is fitted and positioned and held. The inspection unit 13 is slidably mounted on the jig base 11 along a pair of guide rails 11a so as to come into contact with and separate from the connector holding unit 12, and faces the connector holding unit 12. The probe pin 13a for inspecting the continuity of the terminal is arranged on the surface.

The operating portion 14 includes an operating lever 14c which is rotatably supported on a bearing portion 14a provided on the jig base 11 with one end as a fulcrum 14b. The operating lever 14c is formed on the base portion by rotating the operating lever 14c. The inspection unit 13 is pushed and slid toward the connector holding unit 12 via the cam portion 14d. The inspection unit 13 is constantly biased by a spring (not shown) in a direction away from the connector holding unit 12.

The continuity inspection jig body 10 has the probe pin 13a of the inspection section 13 operated by the operation lever 14c.
Is contacted with the terminal of the connector C fitted and held in the connector holding portion 12, thereby conducting the continuity test. Various types of continuity inspection jig bodies having such a configuration have been proposed by the applicant (for example, Japanese Patent Laid-Open No. 7-24835).
1).

A mounting base 16 on which the continuity inspection jig body 10 is slidably mounted via a slide means 15.
Is a plate-shaped member that is longer than the jig base 11 and has substantially the same width, and is mounted and fixed at a predetermined position on the inspection drawing board 1 by a bolt 16b through a mounting hole 16a. The sliding means 15 includes a pair of hook-shaped guide rails 15a formed to project in the longitudinal direction on the mounting base 16 and a guide groove 15b formed on the lower surface of the jig base 11 so as to be fitted to the guide rails 15a. I am configuring. The slide means 15 is not limited to the above-mentioned one, but may be a dovetail groove, a shaft and a slider, or the like.

The continuity inspection jig body 10 slidably mounted on the mounting base 11, together with the connector C held by the connector holding portion 12, extends the wire bundle W in a straight direction (see FIGS. 1 and 2). Means 17 for urging in the Z direction) are provided. The biasing means 17 includes a mounting base 16
The compression coil spring 17b is press-fitted into the spring accommodating portion 17a formed in the longitudinal direction between the guide rails 15a, 15a so that one end of the compression coil spring 17b acts on the end surface of the jig base 11. Also, the mounting base 16
Stoppers 18a and 18b for restricting the front and rear slide limit positions of the jig base 11 are projectingly fixed to both end portions of the upper surface of the jig base 11.

At the front and rear positions of the side surface of the mounting base 16,
Contact-type or non-contact type limit switches 19a and 19b are attached as the dimension detecting means 19, and the detection portions of the limit switches 19a and 19b are made to face the slide track of the jig base 11. The mounting positions of the limit switches 19a and 19b are, as shown in FIG. 5, in the XY directions with the intermediate point of the sliding range of the jig base 11 with respect to the mounting base 16 as a reference point O in the XY directions of the wire bundle W with the connector C. When the jig base 11 is moved by the allowable length error α or more, the ends A and B of the jig base 11 are set at positions where they can be detected.

The above wire harness inspecting device has a connector C mounted on the inspection board 1 at a position separated from the branch point P of the wire harness W / H by a predetermined length L as shown in FIG. It is installed based on the mounting position Q. That is, the position of the connector holding portion 12 is determined so that the connector C is arranged at the mounting position Q, and in this state, the jig base 1
The mounting base 16 is fixed to the inspection drawing board 1 in a positional relationship in which 1 is the reference point O of the slide range.

In order to inspect using the wire harness inspecting device having the above-described structure, the wire harness W / H to be inspected is laid at a predetermined position on the inspection drawing board 1 and branched from the branch point P. The connector C at the tip of the wire bundle W is attached to the connector holding portion 12. At the time of mounting, since the continuity inspection jig body 10 is in the position retracted from the path of the wire bundle W by the action of the compression coil spring 17a of the biasing means 17, as shown by the arrow (b) in FIG. The inspection jig main body 10 is pulled toward the front against the biasing means 17, and the connector C is fitted and mounted in the connector holding portion 12 from above.

At this time, the connector holding portion 12 of the continuity inspection jig main body 10 is brought closer to the branch point P side than the normal position by the sliding operation toward the front, so that the connector C is attached to the electric wire holding portion 12. The wire bundle W can be inserted and operated with a margin without being stretched. Then,
By tilting the operation lever 14c and sliding the inspection portion 13 toward the connector holding portion 12 side, the probe pin 13a is brought into contact with the terminal of the connector C to conduct the continuity inspection.
Then, when the hand is removed from the continuity inspection jig body 10, the jig base 11 is slid in the direction of arrow Z in FIG. 5 by the action of the biasing means 17, and the wire bundle W is straightened. Stop.

At this stop position, from the branch point P to the connector C
If the distance L1 to is within an error range of a predetermined value L ± α, it is appropriate that the ends A and B of the jig base 11 are located between the limit switches 19a and 19b of the dimension detecting means 19. Is confirmed. On the other hand, from the branch point P to the connector C
The limit switch 19a detects the end A of the jig base 11 when the distance L1 to the distance L1 is outside the error range of the predetermined value L ± α and is short, and the limit switch 19b when the distance L1 is long.
Detects the end B.

FIG. 6 shows a second embodiment. The structure of the continuity inspection jig body 10 and the mounting base 16 is almost the same as that of the first embodiment, but a slide base is provided between the jig base 11 and the mounting base 16. The feature is that 21 is interposed. That is, in the first embodiment, the jig base 11 is attached to the mounting base 16.
The slide base 21 on the rectangular plate is attached to the guide groove 11 in the second embodiment.
It is slidably mounted on the mounting base 16 through b'and integrated to form a position inspection jig body 20.

At the four corners of the slide base 21, screw holes 21a corresponding to the mounting holes 11c opened in the jig base 11 of the continuity inspection jig body 10 are formed.
The continuity inspection jig main body 10 is replaceably fixed to the slide base 21 with screws 22 through the mounting holes 11c and 1a. Therefore, as in the first embodiment, the guide groove 11 is formed on the lower surface of the jig base 11 of the continuity inspection jig body 10.
It is not necessary to form b and it can be used as a general continuity inspection jig body 10 directly attached to the inspection drawing board 1.

Since the other structure is the same as that of the first embodiment, the same reference numerals are given and the description thereof is omitted. In addition, the second
The usage state of the wire harness inspection device of the embodiment is the first
The description is omitted because it is the same as the embodiment. In the second embodiment, from the position inspection jig main body 20 to the continuity inspection jig main body 1
Since 0 can be replaced independently, the position inspection jig main body 20 can be shared.

[0031]

As is clear from the above description, in the wire harness inspecting device according to the present invention, the continuity inspection is performed at the same time when the connector attached to the end of the wire bundle extending from the branch point is tested at the same time. Dimensional inspection from the branch point to the connector can be performed. In this case, since the dimension inspection is carried out with the electric wire bundle pulled, it is possible to accurately inspect even those which are too long from the allowable range. In addition, when mounting the connector on the connector holding part of the continuity inspection jig body, the connector can be mounted by sliding the continuity inspection jig body itself toward the front, so the work of installing the connector does not occur when the wire bundle is stretched. It is possible to improve the property.

According to the second aspect of the present invention, the continuity inspection jig main body can be replaced independently from the position inspection jig main body, so that the position inspection jig main body can be shared.

In particular, according to the present invention, the dimensional inspection of the wire harness on the inspection board is performed simultaneously with the continuity inspection, whereby the inspection accuracy of the wire harness can be improved and the workability thereof can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment.

FIG. 2 is a partially cutaway side view of the first embodiment.

3 is a cross-sectional view taken along the line I-I of FIG.

FIG. 4 is a diagram showing a usage state of the first embodiment.

FIG. 5 is a diagram showing a usage state of the first embodiment.

FIG. 6 is a perspective view showing a second embodiment.

FIG. 7 is a perspective view showing a conventional inspection state.

FIG. 8 is a perspective view showing a conventional inspection jig.

[Explanation of symbols]

10 Continuity inspection jig body 11 Jig base 12 Connector holding part 13 Inspection Department 15 Slide means 16 mounting base 17 Biasing means 17b Compression coil spring 19 Dimension detection means 19a, 19b Limit switch 20 Position inspection jig body 21 slide base

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Claims (2)

(57) [Claims] 1. A connector holding portion for fitting and holding a connector attached to an end of an electric wire bundle of a wire harness is fixed on a jig base, and can be contacted and separated with respect to the connector holding portion. A continuity inspection jig body on which an inspection unit equipped with a continuity inspection probe is placed, a mounting base fixed on an inspection drawing board of a wire harness, and the jig base on the mounting base. a sliding means for attaching slidably in the longitudinal direction of the wire bundle with connectors fitted and held in the holding portion, so that the displacement position of the conductivity test jig body with respect to the mounting base is detected when a predetermined acceptable range To the above
Position of the attached base on the slide track of the above jig base
An inspection for a wire harness, comprising: a size detecting means attached to the connector and a means for urging the jig base in a direction to extend the bundle of electric wires with a connector fitted and held in the connector holding portion. vessel. 2. A jig holding base is fixed with a connector holding portion for fitting and holding a connector attached to an end of an electric wire bundle of a wire harness, and the connector holding portion can be operated so as to come into contact with and separate from the connector holding portion. A slide that is slidably mounted via a slide means on the main body of the continuity inspection jig that mounts the inspection unit equipped with the probe for continuity inspection and the mounting base that is fixed on the inspection drawing board of the wire harness. In addition to the base, the slide base with respect to the mounting base is provided with a size detecting means for detecting when the displacement position is out of a predetermined allowable range, and with a biasing means for biasing the slide base to one side. The position inspection jig main body is mounted on the slide base of the position inspection jig main body in a replaceable manner. Tester wire harness, wherein a direction to extend the connector wire bundle with fitted and held in the connector holder has a configuration which applies the biasing means.