JPH1083875A - Inspecting apparatus for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously carry out electric communication inspection and installation size inspection for a connector by sliding a jig main body for electric communication inspection relative to a connector fixed in a jig base and confirming the position of the jig main body. SOLUTION: In a process of laying a wire harness, a connector C at the tip end of an electric wire bundle W is installed in a connector holding part 12 on a jig base 11. Then, an operational lever 14 is fallen down and an inspection part 13 is slid to the connector holding part 12 side to bring a probe pin 13a into contact with a terminal of the connector C and to carry out electric communication inspection. After that, when a hand is taken off the electric communication inspection jig main body 10, the jig base 11 slides in z-direction by an energizing means 17 and stopped while the electric wire bundle W being extended straight. In the case the distance from the branching point at the stopping position to the connector C is within an error range of prescribed value, that the end parts A, B of the jig base 11 are positioned at a point between limit switches 19a, 19b of a size detecting means 19 and it is judged that the size is proper. As a result, even ones having the length within the error range or too long length can be inspected properly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness inspection device, and more particularly to a wire harness inspection device used in a process of inspecting an automobile wire harness on an inspection drawing board. And a dimensional inspection can be performed at the same time.

[0002]

2. Description of the Related Art In general, a wire harness is composed of a bundle of wires in a predetermined form formed by winding a tape around wires laid in a predetermined path, and an outer periphery of the wire bundle is provided as a mounting component.
Exterior parts such as clips and protectors are attached, and connection parts such as connectors are attached to the ends of the plurality of branched wire bundles.

In order to inspect such a wire harness, as shown in FIG. 7, the wire harness W / H is laid on the inspection drawing board 1 along the electric wire holder 2, and each mounting part is fixed to a predetermined position. Attach to the inspection jig arranged at the position. For example, the clip CL provided on the wire bundle W is a clip inspection jig 3
The connector C attached to the end of the wire bundle W is attached to the continuity inspection jig 4. Then, when the clip CL is properly mounted on the clip inspection jig 3, the shape inspection and the dimensional inspection of the mounting position from the reference point are performed. In the continuity inspection jig 4, an inspection of the arrangement state of the wire bundle W and a dimensional inspection from the branch point P to the mounting position of the connector C are performed.

The wire harness W / H is a flexible wire bundle W
, A certain dimensional error is allowed in the position of the attachment part. However, when the inspection jigs for various attachment parts are accurately mounted and fixed at predetermined positions on the inspection drawing board 1, dimensional errors within an allowable range cannot be absorbed. It is difficult to mount them on a vehicle. Also, wire harness W / H
If the attachment is forcibly mounted on the inspection jig due to the flexibility of the attachment, the attachment may be damaged.

[0005] In this regard, the present applicant has previously proposed various inspection jigs for mounting parts in consideration of an allowable dimensional error in Japanese Patent Application Laid-Open No. 7-37448. For example, as shown in FIG. 8, the clip inspection jig 3 moves in the left-right direction indicated by an arrow (a) in the figure by an amount corresponding to a dimensional error allowed in the length direction of the wire bundle W with respect to a regular mounting position. Slidable error absorbing means 5 is provided. This makes it possible to easily mount the mounting component on the inspection jig even if the mounting position of each mounting component is displaced within an allowable range.

In this case, when the pitch of the mounting component such as a clip provided in the middle part of the wire bundle is outside the allowable range and becomes longer or shorter due to the other mounting components mounted before and after the position. Inspection is performed because it cannot be mounted on the inspection jig.

[0007]

However, in general, an error absorbing means slidable in the length direction of the wire bundle W as described above with respect to a continuity inspection jig for inspecting a connector attached to a terminal of the wire bundle. Is provided, there is no mounting part before the connector, so that even if the dimension from the branch point P of the wire bundle W to the connector C is too long, it can be mounted.
Therefore, there arises a problem that an accurate dimension inspection cannot be performed from the branch point P.

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

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and enables a continuity test of a connector attached to an end of a wire bundle and a mounting dimension test from a branch point to be performed simultaneously, and a continuity test. It is an object to improve the workability of attaching a connector to a jig.

[0010]

According to the present invention, there is provided a connector holding device for fitting and holding a connector mounted at an end of a wire bundle of a wire harness on a jig base. Inspection jig main body on which an inspection unit having a probe for continuity inspection is mounted so as to be able to freely move toward and away from the connector holding unit, and a wire harness inspection plate A mounting base fixed to the mounting base, sliding means for slidably mounting the jig base on the mounting base in a longitudinal direction of the wire bundle with a connector fitted and held in the connector holding portion, and conduction with the mounting base. Dimension detecting means for detecting when the displacement position of the inspection jig body is out of a predetermined allowable range, and urging the jig base in a direction in which the wire bundle with a connector fitted and held in the connector holding portion is extended. Provides a test device for a wire harness, characterized in that and a that means.

Specifically, for example, the dimension detecting means includes:
It consists of limit switches attached to both ends of the side surface of the mounting base. When the tip of the slide position of the jig base on the mounting base deviates from an allowable range, the limit switch detects the position.

According to the first aspect of the present invention, when the connector attached to the end of the wire bundle is mounted on the connector holding portion of the continuity inspection jig main body, the wire bundle with the connector is fixed to the jig base by the urging means. Due to the sliding displacement of, it is in a straightened state. Based on the position of the jig base relative to the mounting base in this state, the size detecting means determines whether or not the size from the branch point of the wire bundle to the mounting position of the connector is within a predetermined error range. At the same time, a continuity test is performed based on whether or not the probe of the inspection unit contacts the connector fitted and held in the connector holding unit.

When the connector at the end of the wire bundle is mounted on the connector holding portion, the connector holding portion can be pulled forward together with the jig base by the slide means against the urging force of the urging means. The connector can be mounted without difficulty.

According to a second aspect of the present invention, a connector holding portion for fitting and holding a connector mounted on an end of a wire bundle of a wire harness is fixed on a jig base. A continuity inspection jig body on which an inspection unit provided with a continuity inspection probe is mounted so as to be able to freely move toward and away from the unit, and a slide means on a mounting base fixed on an inspection drawing board of a wire harness. And a dimension detecting means for detecting when a 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. A position inspection jig body provided with an urging means for urging the continuity inspection jig body on a slide base of the position inspection jig body. There is provided a wire harness inspection device, wherein the urging means is configured to act on a continuity inspection jig body in a direction in which a wire bundle with a connector fitted and held in a connector holding portion is extended. .

[0015] That is, the wire harness inspection device of the second aspect is characterized in that the wire harness inspection device of the first aspect has a jig base of a continuity inspection jig main body and a mounting base attached to an inspection drawing board. The slide base is interposed. According to the configuration of claim 2, since the position inspection jig body provided with the dimension detecting means is independent of the continuity inspection jig body, the continuity inspection jig body corresponding to different types of connectors can be used. It can be shared with the tool body.

[0016]

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

FIGS. 1 to 5 show a first embodiment, and a wire harness inspection device according to the present invention comprises a continuity inspection jig main 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 square plate-shaped jig base 11 slidably mounted on a mounting base 16,
A connector holding portion 12 fixed on the jig base 11,
An inspection unit 13 is disposed opposite the connector holding unit 12 and an operation unit 14 is disposed adjacent to the inspection unit 13.

The connector holding portion 12 fits and holds a connector C connected to the end of the wire bundle of the wire harness, is fixed to one side of the jig base 11 by a bolt 12b or the like, and opens upward. The wire bundle W is placed 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 along a pair of guide rails 11 a provided on the jig base 11 so as to be in contact with and separated from the connector holding unit 12. On the surface, probe pins 13a for continuity inspection of terminals are arranged.

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

The continuity inspection jig main body 10 is operated by operating the operation lever 14c, and the probe pin 13a of the inspection section 13 is operated.
Is brought into contact with the terminal of the connector C fitted and held in the connector holding section 12 to perform a continuity test. Various continuity inspection jig bodies having such a configuration have been proposed by the present applicant (for example, JP-A-7-24835).
1).

A mounting base 16 on which the continuity inspection jig body 10 is slidably mounted via sliding means 15.
Is made of a plate-like member longer than the jig base 11 and having substantially the same width, and is attached and fixed to a predetermined position on the inspection drawing board 1 by a bolt 16b through an attachment hole 16a. The sliding means 15 is formed by a pair of hook-shaped guide rails 15a formed 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. Make up. The slide means 15 is not limited to the above-mentioned one, but may be composed of a dovetail groove, a shaft and a slider, or the like.

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

At the front and rear sides of the mounting base 16,
As the dimension detecting means 19, contact type or non-contact type limit switches 19a, 19b are attached, and the detection portions of the limit switches 19a, 19b are exposed on the slide track of the jig base 11. As shown in FIG. 5, the mounting positions of the limit switches 19a and 19b are determined by moving the jig base 11 in the XY direction with the middle point of the sliding range relative to the mounting base 16 as the reference point O in the XY direction. At the time when the jig base 11 moves more than the allowable length error α, the jig base 11 is set at a position where the ends A and B of the jig base 11 can be detected.

As shown in FIG. 5, the wire harness inspection device has a connector C mounted on the inspection drawing board 1 at a position separated by a predetermined length L from a branch point P of the wire harness W / H. 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 disposed at the mounting position Q, and in this state, the jig base 1 is mounted.
The mounting base 16 is fixed to the inspection drawing board 1 in a positional relationship where 1 is a reference point O of the sliding range.

In order to inspect using the wire harness inspection device having the above configuration, the wiring harness W / H to be inspected is laid out at a predetermined position on the inspection drawing board 1 while branching from the branch point P. The connector C at the end of the wire bundle W is mounted on the connector holding section 12. At the time of mounting, the continuity inspection jig body 10 is at a position retracted from the path of the wire bundle W due to the action of the compression coil spring 17a of the urging means 17, so that the continuity inspection jig is indicated by an arrow (b) in FIG. The inspection jig body 10 is pulled toward the front against the urging means 17, and the connector C is fitted into the connector holding portion 12 from above.

At this time, the connector holding portion 12 of the continuity inspection jig main body 10 is moved closer to the branch point P than the regular position by a sliding operation toward the front, so that the connector C is attached to the wire holding portion 12 at the time of mounting. In addition, the wire bundle W can be inserted with sufficient margin without being stretched. Then
By tilting the operation lever 14c and sliding the inspection unit 13 toward the connector holding unit 12, the probe pins 13a are brought into contact with the terminals of the connector C to perform the continuity inspection.
Then, when the hand is released from the continuity inspection jig main body 10, the jig base 11 slides in the direction of arrow Z in FIG. 5 by the action of the urging means 17, and the wire bundle W is straightened. Stop.

At this stop position, the connector C
If the distance L1 is within an error range of a predetermined value L ± α, 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 and are appropriate. 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 outside is outside the error range of the predetermined value L ± α, and when the distance L1 is long, the limit switch 19b
Detects the end B.

FIG. 6 shows a second embodiment, in which the construction of the continuity inspection jig body 10 and the mounting base 16 are almost the same as in the first embodiment, but a slide base is provided between the jig base 11 and the mounting base 16. It has a feature in that it has 21 interposed. That is, in the first embodiment, the jig base 11 is attached to the mounting base 16.
Are slidably mounted directly, but in the second embodiment, the slide base 21 on the square plate is
The position inspection jig body 20 is slidably attached to the attachment base 16 via b 'and integrated therewith.

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 body 10 is exchangeably fixed on the slide base 21 with screws 22 through the mounting holes 11a and the mounting holes 11c. Therefore, the guide groove 11 is provided on the lower surface of the jig base 11 of the continuity inspection jig body 10 as in the first embodiment.
It is not necessary to form b, and it can be used as a general continuity inspection jig main 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 is omitted. In addition, the second
The use state of the wire harness inspection device of the embodiment is the first condition.
The description is omitted because it is similar to the embodiment. In the second embodiment, from the position inspection jig body 20 to the continuity inspection jig body 1
It is characterized in that the position inspection jig main body 20 can be shared by making it possible to replace 0 independently.

[0031]

As is clear from the above description, in the wire harness inspection device according to the present invention, the continuity test is performed on the connector attached to the end of the wire bundle extending from the branch point, and at the same time, Dimension inspection from the branch point to the connector can be performed. In this case, since the dimensional inspection is performed in a state where the wire bundle is pulled, it is possible to accurately inspect a wire bundle that is too long from an allowable range. In addition, when the connector is mounted on the connector holding portion of the continuity inspection jig body, the continuity inspection jig body itself can be slid forward to mount the connector. Performance can be improved.

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

In particular, in the present invention, by performing the dimensional inspection of the wire harness on the inspection drawing board simultaneously with the continuity inspection, the inspection accuracy of the wire harness can be improved and the workability can be greatly improved.

[Brief description of the drawings]

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

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

FIG. 3 is a sectional view taken along the line II of FIG. 2;

FIG. 4 is a diagram illustrating a use state of the first embodiment.

FIG. 5 is a diagram illustrating a use 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]

 DESCRIPTION OF SYMBOLS 10 Continuity inspection jig main body 11 Jig base 12 Connector holding part 13 Inspection part 15 Slide means 16 Mounting base 17 Urging means 17b Compression coil spring 19 Dimension detection means 19a, 19b Limit switch 20 Position inspection jig main body 21 Slide base

Claims (2)

[Claims] A connector holding portion for fitting and holding a connector attached to an end of a wire bundle of a wire harness is fixed on a jig base, and the connector holding portion is operably connected to and separated from the connector holding portion. A continuity inspection jig main body on which an inspection unit provided with a continuity inspection probe is mounted, 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 slidably mounting in a longitudinal direction of the wire bundle with a connector fitted and held in the holding portion, and a dimension detected when a displacement position of the continuity inspection jig body with respect to the mounting base is out of a predetermined allowable range. Inspection for a wire harness, comprising: detection means; and means for urging the jig base in a direction in which a wire bundle with a connector fitted and held in the connector holding portion is extended. . 2. A connector holding portion for fitting and holding a connector mounted on an end of a wire bundle of a wire harness is fixed on a jig base, and the connector holding portion is operably connected to and separated from the connector holding portion. A slide slidably mounted via a slide means on a continuity inspection jig main body on which an inspection unit provided with a continuity inspection probe is mounted, and a mounting base fixed on an inspection drawing board of a wire harness. A base, and a dimension detecting means for detecting when a displacement position of the slide base with respect to the mounting base is out of a predetermined allowable range, and an urging means for urging the slide base to one side. The continuity inspection jig body is exchangeably mounted on a slide base of the position inspection jig body, and the continuity inspection jig body is 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.