JPH0526939A - Conductivity test device, conductivity test tool used for it, and conductivity test method - Google Patents

Abstract

PURPOSE:To enable a connector to be removed easily by operating a plurality of conductivity test tools for testing conductivity of wire harnessings simultaneously and then separating and opening them. CONSTITUTION:A plurality of connectors A are set to a plurality of conductivity test tools 37 on an inspection stand 35. When a start switch 88 is turned on, one of a plurality of connectors conducts, thus enabling OK or NG to be determined. In the case of OK, 'OK' is displayed at a display portion 39 and is counted. Then, when the counter reaches a specified number, an opening switch 86 is turned on by an operator, an air cylinder 7 is operated, and a wire 79 is pulled, thus enabling conduction blocks to be separated. Therefore, a plurality of tools 37 are separated simultaneously. Also, in the case of NG due to erroneous wiring, etc., 'NG' is displayed on the display portion 39. When the 'NG' is displayed, the operator operates an operation lever 73, takes out a connector A, and then repairs it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuity inspection device for inspecting continuity of a wire harness, a continuity jig used in the continuity inspection device, and a continuity method.

[0002]

2. Description of the Related Art FIG. 8 shows a continuity inspection jig 1 used in the continuity inspection apparatus proposed in Japanese Utility Model Publication No. 55-8221.
It is shown. The continuity inspection jig 1 includes a support portion 3 for supporting a connector A connected to an end portion of a wire harness (not shown) to be subjected to continuity inspection, and a continuity detection portion 5 electrically connected to a terminal fitting of the connector A. , And an operation mechanism section 7 for opening and closing the conduction detection section 5 by bringing the conduction detection section 5 into and out of contact with the support section 3.

The supporting portion 3 has a flat plate shape, and a supporting plate 11 having a circular concave portion 9 formed in the central portion is provided upright on one end of a base 13.

The continuity detecting section 5 is moved to the slide shafts 17 and a pair of slide shafts 17 supported by a shaft fixing plate 15 and a supporting plate 11 provided upright on the other end of the base 13. Freely supported detector body 1
9 and a compression coil spring 21 that is wound around the slide shaft 17 and presses the detector 19 against the operation mechanism section 7. The detector 19 has a fitting port 27 formed on the support plate 11 side, and a plurality of continuity inspection pins 29 are provided in the fitting port 27 so as to project therefrom.
9 is connected to a conduction power source (not shown).

The operation mechanism section 7 has a cam 23 rotatably supported by a rotary shaft 20 supported by the base 13, and a cam 23 connected to the cam 23 to rotate the cam 23 about the rotary shaft 20. And an operating lever 25 for As shown in FIGS. 8 and 9, the intermediate portion of the cam 23 gradually protrudes from the upper and lower portions, and the state shown in FIG. 8 (shown by the dotted line in FIG. 9)
When the cam 23 is rotated in the clockwise direction in FIG. 9 by the operating lever 25, the detector body 19 moves toward the support plate 11 side against the biasing force of the compression coil spring 21. Further, in the state where the rotation of the operation lever 25 is stopped and no force is applied, the operation lever 25 and the cam 23 move in the direction away from the support plate 11 by the urging force of the compression coil spring 21. When the operation lever 25 is rotated to the end, the support portion 3
The cam 23 holds the state where the continuity detecting unit 5 has moved to the side.

Next, a procedure for conducting a continuity inspection of the wire harness by setting a plurality of connectors A connected to the ends of a wire harness (not shown) by using a plurality of the continuity inspection jigs 1 will be described.

As shown in FIG. 9, a plurality of continuity inspection jigs 1 are provided.
From the so-called open state in which each of the continuity detecting sections 5 is separated from the support plate 11 (the cam 23 of the operating mechanism section 7 is in the state shown by the dotted line in FIG. 9), the connector A is connected to the support plate 11 and the continuity detecting section. 5 and the cam 23. And
When the operating lever 25 is operated to rotate from the position shown by the dotted line in FIG. 9 to the position shown by the solid line, the detector main body 19 moves to the connector A side against the biasing force of the compression coil spring 21, and the tip of the connector A. The portion fits into the fitting port 27, and the continuity check pin 29 is electrically connected to the terminal fitting of the connector A.

In this state, the continuity inspection pin 29 is energized, and the continuity inspection pin 29 detects whether or not the wire harness is energized to inspect the continuity of the wire harness. This result is displayed on the display unit (not shown)
It is displayed in G etc. and notified to the operator. After the continuity inspection is completed, the operation lever 25 of each continuity inspection jig 1 is operated to rotate the cam 23 counterclockwise in FIG. As a result, the detector body 19 is separated from the connector A and opened.

[0009]

However, when the continuity inspection is completed and the connector A is removed from between the support plate 11 and the detector main body 19, the operation lever 25 is operated for each of the plurality of continuity inspection jigs 1. Since it is necessary to rotate the cam 23, the work of removing the connector A is very troublesome.

Further, in order to remove a large number of connectors A from between the support plate 11 and the detector main body 19 in a short time, the operating lever 25 is roughly handled, which causes damage and failure of the continuity inspection jig. ing.

Furthermore, when the cam 23 is separated from the detector main body 19, it may be in an incomplete state. If the connector A is taken out from between the support plate 11 and the detector body 19 in this state, the connector may be damaged, the terminal fittings of the connector may be damaged, or the wire harness may be broken by applying an excessive force. .

Therefore, the present invention provides a continuity inspection device capable of easily removing the connectors respectively supported by a plurality of continuity inspection jigs, a continuity inspection jig used in this device, and a continuity inspection method. Is the purpose.

[0013]

In order to achieve the above object, a continuity inspection apparatus according to a first aspect of the present invention is arranged such that a plurality of continuity inspection jigs are operated simultaneously to operate the support mechanism from the support portion to the continuity detection portion. It is characterized in that an automatic opening device for opening the continuity detecting portion is provided by simultaneously separating the two. Claim 2
The continuity inspection jig of the invention described above is characterized in that the drive lever of the operation mechanism unit is provided with a drive transmission unit to which an automatic opening device that automatically separates the continuity detection unit from the support unit is connected.

According to a third aspect of the present invention, there is provided a continuity method in which a plurality of connectors connected to the ends of a wire harness to be tested for continuity are respectively supported by support parts of a plurality of continuity jigs, and an operation mechanism part is provided. Drive the conductive detection part to the support part to electrically connect the conductive detection part to the terminal fittings of the connector, then energize to test the conductivity of the wire harness and connect the wires to multiple connectors. If all the harness continuity inspection results are passed, after notifying this, it is necessary to drive the operation mechanism parts of multiple continuity inspection jigs simultaneously or in groups to separate the continuity detection part from the support part at the same time. It has a feature.

[0015]

According to the invention of claim 1, a plurality of connectors connected to the ends of the wire harness to be subjected to the continuity inspection are respectively supported by the respective supporting portions of the plurality of continuity inspection jigs on the inspection table. After that, the operation mechanism section of each continuity inspection jig is driven to move the continuity detecting section to the connector side, and the terminal fittings of the connector and the continuity detecting section are electrically connected. Then, after energizing the terminal fittings of the connector to inspect the continuity of the wire harness, the operation mechanism parts of the plurality of continuity inspection jigs are simultaneously operated by the automatic opening device, and the continuity detecting parts from the respective supporting parts are simultaneously operated. Separate.

As a result, the connector can be easily removed from the plurality of continuity inspection jigs.

According to the invention of claim 2, since the wire of the automatic opening device is connected to the drive transmission portion of the operation lever, the operation lever is automatically rotated by the drive of the automatic opening device, and a plurality of units are connected. The continuity detecting section of the continuity inspection jig can be separated from the supporting section at the same time.

According to the invention of claim 3, after supporting the plurality of connectors connected to the end of the wire harness on the supporting portion, the operation mechanism portion is driven to move the continuity detecting portion to the supporting portion side. , Electrically connect the continuity detection unit to the terminal fittings of the connector. Then, the continuity detection unit is energized to inspect the continuity of the wire harness. If all the wiring harness continuity results with multiple connectors are passed,
While notifying this, the operation mechanism unit is driven to separate the conduction detection units from the support unit side simultaneously or in groups, and the conduction detection units are opened from the terminal fittings of the connector.

[0019]

Embodiments of the continuity inspection apparatus, the continuity inspection jig used in the apparatus, and the continuity inspection method according to the present invention will be described below with reference to FIGS. 1 to 7.

As shown in FIGS. 1 and 2, the continuity inspection device 31 of this embodiment has an inspection table 35 installed on the floor 30 with four legs 33 in an inclined state, and an inspection table 35 on the inspection table 35. A plurality of continuity inspection jigs 37 fixed via the mounting plate 101 (see FIG. 3), an automatic opening device 43 for simultaneously operating these continuity inspection jigs 37, and continuity results of the terminals of the connector A are shown. Display unit 39 for displaying and continuity inspection jig 37
Is operated to conduct a continuity test of the terminals of the connector A and to display the display unit 39 based on the detection result.

The continuity inspection jig 37 is, as shown in FIG. 3, a supporting portion 45 for supporting the connector A to be inspected for continuity.
And a continuity detecting section 47 electrically connected to the terminal of the connector A, and an operation mechanism section 49 for bringing the continuity detecting section 47 into and out of contact with the support section 45.

The support portion 45 has a block 53 formed at one end of a base portion 51 having a substantially U-shaped cross section, and is slightly larger than the connector A in conformity with the shape of the connector A. A connector insertion portion 55 is formed.

The continuity detecting section 47 has slide shafts 5 arranged in parallel along the longitudinal direction of the base section 51.
A conductive block 59 that is movable in the longitudinal direction of the base portion 51 is formed by being guided by the base portion 7. A concave portion 63 is formed on the surface side facing the block 53 at the substantially central portion of the conductive block 59. A plurality of continuity inspection pieces 61 are provided on the projection. Further, in the recess 63, the block 53
The terminal portion of the connector A fixed to is inserted.

The operation mechanism portion 49 has the other end side of the base portion 51 (the end portion on the opposite side of the portion where the block 53 is fixed).
In addition, a pair of L-shaped rotation support portions 65 that are raised substantially at right angles, a support portion 66 that is rotatably supported by a rotation shaft 64 that is a fulcrum on the rotation support portions 65, and the support. The operating plate portion 68 located on the portion 66, the operation portion 6 which is a power point
9 and the drive transmission unit 7 located in the direction opposite to the operation unit 69.
1 and a three-pronged operation lever 73, one end of which is rotatably supported by a rotary shaft 67 on both sides of the action plate portion 68, and the other end of which is rotatably connected to a side portion of the conduction block 59. It is composed of a link 75.

The operation lever 73 is shown around the rotary shaft 64 in FIG.
When it is rotated counterclockwise, the link 75 swings to move the conduction block 59 toward the block 53.

From this state, the operating lever 73 is moved to the rotary shaft 67.
When it is rotated in the clockwise direction in FIG. 2 about the center, the link 75 swings and the conducting block 59 moves in the direction in which the block 53 separates.

The automatic opening device 43 includes an operating lever 73.
The drive transmission portion 71 formed on the upper surface of the inspection table 35 and the fixing member 9 on the shaft 97 that is hung between the frames 95 at the lower portion of the inspection table 35.
The air cylinder 77 fixed via 9 and the wire 79 connecting the piston 77a of the air cylinder 77, and the passage hole 3 of the inspection table 35 through which the wire 79 passes.
The control device 41 includes a wire angle changing unit 81 that is formed on the edge of the wire 5a and changes the angle of the wire 79.

As shown in FIG. 5, the wire angle changing means 81 comprises a pulley 85 rotatably supported by an L-shaped mounting member 83 provided upright on the opening edge of the passage hole 35a. The intermediate portion of the wire 79 connected to the drive transmission portion 71 of the operation lever 73 is supported.

The display unit 39 is composed of a display plate (a so-called electronic bulletin board) that is erected on one side of the tilted inspection table 35, and the conduction result of the connector A is OK by a command signal of the control unit 41. Display in NG.

The control device 41, as shown in FIG.
U, ROM, RAM, an input port, an output port, and a data bus connecting these parts, and the input port has an input means such as a continuity detection part 47 and an operation switch including a start switch 88 and an open switch 86. 8
7 is connected to the output port, an energizing power source 89 for supplying a test current for detecting conduction of the terminal of the connector A, a display unit 39, and a compressor 93 for supplying compressed air to the air cylinder 77. Is connected to the electromagnetic valve 91 disposed between.

Next, a continuity inspection method for inspecting the wiring harness continuity by the continuity inspection device 31 will be described with reference to the flow chart shown in FIG.

In step S71, a plurality of connectors A are set on the blocks 53 of the plurality of continuity inspection jigs 37 on the inspection table 35, respectively. At this time, the operation lever 73 is shown in FIG.
The conductive block 59 is separated from the block 53 by being rotated clockwise. After inserting the connector A into the connector insertion portion 55 from this state, the operation lever 73 is rotated counterclockwise in FIG. 2 to move the continuity detection portion 47 to the support portion 45 side. Further, the number of connectors A is input to the control device 41 by the input means 87 such as a keyboard provided on the control device 41.

Next, in step S72, the start switch 88 on the inspection table 35 is turned on, and in step 73, one of the plurality of connectors is energized. Then, in step S74, it is determined whether the energization test is OK or NG. OK
If, that is, if the connector A is passed, then step S
In step S7, OK is displayed on the display unit 39 at step S7.
Counts at 6. Next, in step S77, it is determined whether or not the count has reached the predetermined number N0. In this case, if you have not counted up to the predetermined number N0,
Returning to step S73, the following is executed again.

When the number N0 counted in step S77 reaches a predetermined number, it is determined in step S48 whether the release switch 86 has been turned on. The operator pushes the release switch 86 to turn it on, step S
The air cylinder 77 is operated by 79, and the wire 79
By pulling, and rotating the drive transmission portion 71 of the operation lever 73 in the clockwise direction in FIG.
3 apart from each other. Thereby, the conduction blocks 59 of the plurality of conduction inspection jigs 37 on the inspection table 35 can be separated from the block 53 at the same time.

If the wiring is NG due to incorrect wiring or the like in step 74, the process proceeds to step S80, NG is displayed on the display unit 39, and it is determined in step S81 whether or not the repair is completed. . When the display of NG is displayed on the display unit 39, the operator operates the operation lever 73 to take out the connector A from the block 53, repairs it, and then again supports the connector A on the support unit 45.

When the connector A is repaired, step S7
In step 7, it is determined whether or not the predetermined number has been counted. If the predetermined number N0 has been counted, steps S78 and thereafter are executed to pull the wire 79 and rotate the operation lever 73 clockwise in FIG. Let the conduction block 59
Are separated from the block 53. This allows
The conduction blocks 59 of the plurality of conduction inspection jigs 37 on the inspection table 35 can be separated from the block 53 at the same time.

Thus, in this embodiment, the conduction block 5 is
When the blocks 53 are separated from each other, the continuity detecting portions 47 of the plurality of continuity inspection jigs 37 can be separated from the supporting portion 45 at the same time or in groups, so that the connector A
The removal time is shortened and the removal work becomes easier.

In the above embodiment, the air cylinder 7
By pulling the wire 79 with 7, the operating lever 73
However, the operation lever 73 may be rotated by pulling the wire 79 by a configuration other than the air cylinder 77, for example, a driving force of a cam mechanism, a solenoid, a motor, or the like.

Further, in the above embodiment, the worker turns on the release switch 86 after the continuity inspection of the wire harness is completed.
Although the example in which the air cylinder 77 operates when N is given is not limited to this, the air cylinder 77 may automatically operate after the continuity inspection of the wire harness 79 is completed.

[0040]

As described above, according to the present invention, it is possible to easily remove the connectors supported by the plurality of continuity inspection jigs.

[Brief description of drawings]

FIG. 1 is a perspective view showing a continuity inspection device according to the present invention.

FIG. 2 is a side view showing a continuity inspection device.

FIG. 3 is a perspective view showing a continuity inspection jig.

FIG. 4 is a perspective view showing a state in which a conduction block of a conduction inspection jig has moved to a block side.

FIG. 5 is a perspective view showing a wire angle changing means.

FIG. 6 is a block diagram showing a control device and devices connected to the control device.

FIG. 7 is a flowchart showing the operation of the control device.

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

FIG. 9 is a side view showing the operation of a conventional continuity inspection jig.

[Explanation of symbols]

31 Continuity inspection device 35 inspection table 37 Continuity inspection jig 39 Display 41 Control device 43 Automatic opening device 45 Support 47 Continuity detector 49 Operation mechanism section 71 Drive transmission unit 73 Operation lever 75 links 77 Air cylinder 77a piston 79 wire 81 Wire angle changing means

Claims (3)

[Claims] 1. A support part for supporting a connector connected to an end of a wire harness to be tested for continuity, a continuity detection part electrically connected to a terminal fitting of the connector, and the continuity to the support part. In a continuity inspection device for inspecting the continuity of a wire harness, a plurality of continuity inspection jigs, each of which includes an operation mechanism unit that opens and closes the continuity detection unit by contacting and separating the detection unit, is placed on the inspection table. 2. A continuity inspection apparatus comprising: an automatic opening device that simultaneously operates the operation mechanism section of the continuity inspection jig to simultaneously separate the continuity detection section from the support section to open the continuity detection section. 2. A support part for supporting a connector connected to an end of a wire harness to be subjected to a continuity test, a continuity detecting part electrically connected to a terminal fitting of the connector, and a control lever for rotating. In a continuity inspection jig including an operation mechanism section that opens and closes the continuity detection section by bringing the continuity detection section into and out of contact with the support section, an automatic opening device that automatically separates the continuity detection section from the support section is connected. A continuity inspection jig, characterized in that the drive transmission part is provided on the operation lever of the operation mechanism part. 3. A plurality of connectors connected to the ends of a wire harness to be inspected for continuity are respectively supported by supporting parts of a plurality of continuity jigs, and an operation mechanism part is driven to support a continuity detecting part. To the connector and electrically connect the continuity detection part to the terminal fittings of the connector, then energize to inspect the continuity of the wire harness and all the continuity inspection results of the wire harness connected to multiple connectors have passed. In some cases, after notifying this, the continuity inspection method is characterized in that the operation mechanism units of the plurality of continuity inspection jigs are driven simultaneously or in groups to separate the continuity detection unit from the support unit at the same time.