JP3003524B2 - Connector terminal inspection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector housing in which a plurality of terminals are mounted in a terminal accommodating portion, and a state of each terminal fixed by a locking member detachably provided to the connector housing. The present invention relates to a connector terminal inspection device to be inspected.

[0002]

2. Description of the Related Art Conventionally, a connector terminal inspection apparatus for inspecting a state of a plurality of terminals mounted in a terminal accommodating portion of a connector housing is described in JP-A-2-5383, JP-A-5-59783, and the like. There is a so-called lever type continuity inspection device, which is shown in FIGS.
It is configured as shown in FIG.

[0003] That is, as shown in FIG.
A device main body 2 is slidably mounted on the pedestal 1 in the left and right directions at substantially the center of the upper part. The lever 4 and the main body 2 are connected by a connecting rod 5. However, both ends of the connecting rod 5 are rotatably attached to the lever 4 and the main body 2, respectively, and the rotational movement of the lever 4 is transmitted to the main body 2 via the connecting rod 5 as a linear motion, and the main body 2 moves in the left-right direction. It has become.

[0004] Further, a mounting piece 7 is integrally provided at the right end of the support 3, and a through hole formed through the lower portion of the mounting piece 7 and a through hole formed in the lower part of the main body 2 in the left-right direction. A long bolt 8 is inserted in the left-right direction, the right end of the bolt 8 is led out to the right of the main body, a nut 9 is screwed to the right end of the bolt 8, and the mounting piece 7 of the bolt 8 and the left side of the main body 2 are connected. Spring 10 between
Is wound, and the main body 2 is urged rightward by the spring 10.

[0005] As shown in FIG. 7, a plurality of terminals 14 are mounted in a terminal accommodating portion 13 of a connector housing 12, and as shown in FIG. A concave housing receiving portion 16 into which a part of the housing 12 is inserted is formed, and the right end of the connector housing 12 is detachably fixed to a housing mount 17 attached to the right end of the pedestal 1.
After the connector housing 12 is fixed to the housing attachment body 17 in a state where the main body 2 is rotated as shown by the solid line in FIG. 6, the main body 2 is rotated by the lever 4 as shown by the dashed line in FIG. Is moved rightward, that is, in the direction of the connector housing 12, and the left end of the connector housing 12 is inserted into the housing receiving portion 16 of the main body 2.

A plurality of through holes 18 communicating with the housing receiving portion 16 are provided on the left side surface of the main body 2.
At this time, since the mounting position of each terminal 14 to the connector housing 12 is known in advance, each through-hole is provided at a position facing each terminal 14 when the left end of the connector housing 12 is inserted into the housing receiving portion 16. 18 is provided.

A plurality of contacts 20 shown in FIG. 7 are fitted into each through hole 18 and each contact 20 is mounted on the main body 2.
Each contact 20 and each terminal 14 are connected to a conduction machine 21, and when the left end of the connector housing 12 is inserted into the housing receiving portion 16 as described above, each contact 20
Is electrically contacted with each terminal 14, the contact between the contact 20 and the terminal 14 is detected by the conduction device 21, and the effect is notified by a notification means such as a notification lamp, and the terminal 14 is normally connected to the connector housing 12. You can see that it is attached to.

When the terminal 14 is not properly mounted, the contact 20 does not come into contact with the terminal 14, so that the notifying means of the conduction machine 21 does not operate, and the terminal 14 is normally mounted. It turns out there is no.

Conventionally, for example, as shown in FIG.
A base 23a inserted into an insertion groove formed in the wire housing 13 from the opening side of the wire housing 13 of the connector housing 12, and is formed at a substantially central portion of the base 23a and engaged with the connector housing 12. A locking claw 23b, a plurality of protrusions 23c formed at four corners on both sides of the base 23a and abutting against each terminal 14 to prevent the terminal 14 from being displaced;
Using a connector 25 called a retainer, which is a retainer constituted by an operating body 24 for pushing the base 23 provided integrally with the base 23a, a locking tool 25 capable of being detached,
As shown in FIG. 8, each of the terminals 14 is securely fixed to the connector housing 12 by inserting the locking tool 25 into the wire housing 13 and locking the locking claw 23 b to the connector housing 12. In general, this kind of locking device 25 is a push-up type which is detachably provided so as not to be detached in the connector housing and is locked by being pushed up. As shown in FIG. There are push-in type terminals which are separated and attached by pushing in after inserting the terminal, and hinge-type terminals which are fitted into predetermined portions of the connector housing.

[0010]

However, since the above-described inspection device cannot detect the above-mentioned locking member 25, the inspection of the locking member 25 with respect to the connector housing 12 of the type having the locking member 25 is not possible. Has conventionally been performed visually, causing a reduction in work efficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to make it possible to inspect the locking position of a locking member at the same time as the quality of terminal mounting. I do.

[0012]

According to the first aspect of the present invention,
A connector terminal inspecting device for inspecting a state of each of the terminals, wherein a plurality of terminals are mounted in terminal receiving portions of the connector housing, and the terminals are fixed by locking of a locking member detachably provided to the connector housing. A device body in which the connector housing is removably inserted into a housing receiving portion, and a mounting state of each terminal provided at a position of the housing receiving portion facing each of the terminals according to presence or absence of contact with each of the terminals. A contact for detecting the quality of the lock, and a light receiving means for receiving light reflected from the lock by irradiating light to the lock provided at a position of the housing receiving portion opposed to the lock. And an optical sensor for detecting whether or not is locked properly.

According to a fourth aspect of the present invention, the optical sensor transmits light from a light emitting element and irradiates the locking member with light, and a light receiving element for transmitting the reflected light to a light receiving element. And an optical fiber for use.

[0014]

According to the first aspect of the present invention, when the connector housing is inserted into the housing receiving portion, if each terminal is normally inserted and fixed, each contact comes into contact with each terminal. Since the normal insertion of each terminal is detected at the same time, it is detected whether or not the locking device is correctly locked based on the reception of the reflected light from the locking device by the optical sensor.
The correctness of the locking position of the locking tool is checked at the same time as the quality of the insertion of each terminal.

At this time, when the locking member is not locked properly, the optical sensor receives only reflected light smaller than a predetermined level from the locking member, and the locking member is properly locked. The optical sensor is disposed such that the optical sensor receives reflected light larger than a predetermined level from the locking tool in the state in which the locking tool is locked, or in a state where the locking tool is correctly locked as described in claim 3. By arranging the optical sensor such that the optical sensor receives the reflected light from the locking tool or does not receive the reflected light from the locking tool, The correctness of the locking position of the locking device is checked.

Further, when the optical sensor is constituted by optical fibers for light emission and light reception, the size of the optical sensor can be reduced, and the optical sensor is arranged in a small space of the connector housing. It becomes possible.

[0017]

1 to 3 show an embodiment of the present invention. FIG. 1 is a partially cutaway front view, FIG. 2 is a partially cutaway front view, FIG. 3 is a schematic view, and FIG. FIG.

In these figures, the same reference numerals as those in FIGS. 6 and 7 indicate the same or corresponding elements, and the difference from FIGS. 6 and 7 is that, as shown in FIG. When inspecting each terminal 14 fixed using the stopper 25, the correct locking position of the locking member 25 to the connector housing 12 is known in advance, so that the left end of the connector housing 12 is A through hole 26 is provided at a position on the left side of the device main body 2 in a state opposite to the locking member 25 in the inserted state, and light from a light emitting element such as an LED is transmitted and locked in the through hole 26. Optical fiber 28 for irradiating the tool 25 and the light receiving optical fiber 2 for transmitting the reflected light from the locking tool 25 to a light receiving element such as a phototransistor.
9 and light-emitting elements incorporated in the control unit 32 under control of the control unit 32 to irradiate light through the light sensor 30 as shown in FIG. Based on a light receiving signal output from the reflected light received by the light receiving element built in the control unit 32, a determination unit for determining whether the stop position of the locking member 25 is correct is turned on or off, and the determination signal is transmitted to the conduction machine 21. That is, the fact that the reflected light has been received is displayed by the display means provided in the conducting device 21.

However, as shown in FIG. 4 (a), the light from the optical sensor 30 focuses on the end face of the operating body 24 of the locking tool 25 at the position where the push-type locking tool 25 is correctly locked. The optical sensor 30 is disposed so that the reflected light from the locking member 25 is at or above a predetermined level, and as shown in FIG. 4B, the optical sensor 30 engages with the locking member 25 not locked. Only the reflected light smaller than the predetermined level is received from the stopper 25, and the optical sensor 30 receives the reflected light larger than the predetermined level from the locking tool 2 by the optical sensor 30 while the locking tool 25 is locked. The determination means is turned on to output a determination signal.

Then, after the connector housing 12 is fixed to the housing mount 17 with the lever 4 rotated as shown by the solid line in FIG. 2, the lever 4 is rotated as shown by the dashed line in FIG. As a result, the apparatus main body 2 is moved rightward, that is, in the direction of the connector housing 12 by the urging force of the spring 10, and
When the left end of the connector housing 12 is inserted into the connector housing 12, when the terminals 14 are properly inserted and fixed, and when the locking tool 25 is properly locked, each contact 20 is connected to each terminal 1.
4 and at the same time the optical sensor 30
Is greater than a predetermined level, and it is detected that the locking member 25 is correctly locked based on the reception of the reflected light having the predetermined level or more.

Therefore, when the lock 25 is not locked, the optical sensor 30 receives only reflected light smaller than a predetermined level from the lock 25, and when the lock 25 is locked, the optical sensor 30 receives light. By arranging the optical sensor 30 so that reflected light larger than a predetermined level is received from the locking member 25, each terminal 14 is normally inserted and fixed,
In addition, when the locking tool 25 is properly locked, each of the contacts 20 contacts each of the terminals 14 and at the same time, the optical sensor 3
0, reflected light of a predetermined level or more is received and detected from the locking tool 25, so that whether the terminals 14 are properly inserted or not can be checked at the same time whether the locking position of the locking tool 25 is correct or not. Improvement can be achieved.

Since the optical sensor 30 is composed of the optical fibers 28 and 29 for light emission and light reception, the size of the optical sensor 30 can be reduced.
It is possible to dispose the optical sensor 30 in a small space.

As another embodiment, in the case of the push-up type locking device described above, as shown in FIG. 5A, the optical sensor 30 is not properly locked with the locking device 25 '. Although the reflected light from the locking tool 25 'is received, the determination means of the control unit 32 remains off, and the light is started only when the locking tool 25' is properly locked as shown in FIG. The sensor 30 stops receiving the reflected light from the lock 25 ',
The optical sensor 30 may be provided so that the determination unit of the control unit 32 is turned on.

The optical sensor 30 is not limited to the configuration of the above embodiment.

Further, the type of the locking member 25 is the above-mentioned 3
One of the two.

In the above embodiment, the case where the present invention is applied to the lever-type continuity inspection device has been described. However, the application is not particularly limited to only the lever-type continuity inspection device. The present invention can be applied, and in this case, the same effect as the above embodiment can be obtained.

[0027]

As described above, according to the first aspect of the present invention, each contact is provided at a position facing each terminal of the housing receiving portion of the apparatus main body, and the contact between each contact and each terminal is provided. The presence or absence of each terminal is detected based on the presence or absence, and an optical sensor is provided at a position of the housing receiving portion facing the locking device, and the optical sensor irradiates light to the locking device and reflects light from the locking device. To detect whether the locking device is locked in the correct position based on the light received by the optical sensor and the reflected light from the locking device. Inspection can be performed at the same time, and work efficiency can be improved.

Further, since the optical sensor is constituted by optical fibers for light emission and light reception, the size of the optical sensor can be reduced, so that the optical sensor is provided in a small space of the connector housing. It becomes possible to arrange.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.

FIG. 2 is a front view of a different part of one embodiment.

FIG. 3 is a schematic diagram of one embodiment.

FIG. 4 is an operation explanatory diagram of one embodiment.

FIG. 5 is an operation explanatory diagram of another embodiment.

FIG. 6 is a partial front view of a conventional example.

FIG. 7 is a schematic view of a conventional example.

FIG. 8 is a perspective view of another part of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pedestal 2 Device main body 4 Lever 12 Connector housing 13 Terminal accommodating part 14 Terminal 16 Housing receiving part 20 Contact 25, 25 'Locking tool (retainer) 28 Optical fiber for light emission 29 Optical fiber for light reception 30 Optical sensor

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 43/00-43/02

Claims (5)

(57) [Claims] 1. A connector terminal in which a plurality of terminals are mounted in a terminal accommodating portion of a connector housing, and a state of each terminal fixed by locking of a locking member detachably provided to the connector housing is inspected. An inspection device, wherein the connector housing is removably inserted into a housing receiving portion, and the device main body is provided at a position facing each of the terminals of the housing receiving portion. A contact for detecting whether or not each terminal is mounted, and a light receiving means for receiving light reflected from the locking tool by irradiating light to the locking tool provided at a position of the housing receiving portion facing the locking tool; An optical sensor for detecting whether or not the locking member is correctly locked. 2. In a state where the locking device is not locked properly, the optical sensor receives only reflected light smaller than a predetermined level from the locking device, and in a state where the locking device is locked properly. 2. The connector terminal inspection device according to claim 1, wherein the optical sensor is provided such that the optical sensor receives a reflected light from the locking tool that is higher than the predetermined level. 3. In a state where the locking device is properly locked,
2. The optical sensor according to claim 1, wherein the optical sensor is disposed such that the optical sensor receives reflected light from the locking tool or does not receive reflected light from the locking tool. 3. Connector terminal inspection device. 4. The optical sensor according to claim 1, wherein the optical sensor includes a light emitting optical fiber for transmitting light from a light emitting element and irradiating the locking member, and a light receiving optical fiber for transmitting the reflected light to a light receiving element. The connector terminal inspection device according to claim 1, wherein 5. The connector terminal inspection apparatus according to claim 1, wherein the apparatus main body is slidably mounted on the pedestal by operating a lever.