JPH08313582A - Terminal inspection device for connector - Google Patents

Abstract

PURPOSE: To reduce the disconnection of inspection pins of a terminal inspection device provided with a connector holding block having continuity inspection pins for inspecting connector terminals for continuity from lead wires due to the bending of the lead wires or abrasion of the pins themselves so as to improve the durability of the terminal inspection device. CONSTITUTION: In a frame 10, the front half section of a connector A is accepted on one end side and a main holding block 11 provided with inspection pins 13 for the terminals of the connector A is provided, and then, a sub-holding block 14 which houses the rear-half section of the connector A is provided on the other end section so that the block 14 can move forward and backward. On the block 11 side, in addition, a cam lever 18 having a cam groove 23 is rotatably provided on the side wall of the frame 10 and one end of a driven link 24 having a long guide hole 25 which is loosely fit to the pivot 22 of the lever 18 is connected to the cam groove 23 through a pin 26. The other side of the link 24 is connected to the sub-holding block 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a connector terminal inspecting device for inspecting the inserted state and the continuity of a terminal of a connector used for interconnection of wire harnesses.

[0002]

2. Description of the Related Art Japanese Patent Publication No.
In No. 40669, as shown in FIG. 3, a connector holding portion 31 for a connector 35 is provided at one end of an underframe 30, and an inspection portion 3 provided with a conduction pin (inspection needle) 33 facing the connector holding portion 31.
It has been proposed that the control lever 2 is moved back and forth by rotating the control lever 34. In the figure, 36 is a connector housing having a plurality of terminal accommodating holes 37, 38 is a connecting electric wire of a terminal (not shown) accommodated and locked in the accommodating holes, and 39 is a lead wire of the conduction pin 33.

The conventional type terminal inspector has a conduction pin 33.
The inspection unit 32 itself having a structure slides, and the lead wire 39 for sending a signal output from the pin to the main body of the inspection machine is bent. Since the number of connectors to be inspected is extremely large, the frequency of use of the terminal inspector is high, and the lead wire bends each time the inspection is performed, so that the wire is easily broken. In addition, the inspection unit 32
Since the conductive pin 33 vibrates as the device moves forward and backward, it is easily worn and the life of the entire inspection device is short.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and there is no fear that the lead pin lead wire will bend each time the connector is inspected, and the structure is simple. It is an object of the present invention to provide a durable connector terminal inspector that is easy to perform.

[0005]

In order to achieve the above object, according to the present invention, as described in claim 1, a terminal for connecting terminals connected to an electric wire from a rear of the connector housing to an internal terminal receiving hole. A terminal inspecting device for a connector which is stopped, wherein a main holding block that receives the front half of the connector housing and has an inspection pin for the terminal is provided at one end side in the frame, and at the other end side in the frame. A sub-holding block that houses the latter half of the connector housing is provided to face the main holding block so that the sub-holding block can be moved forward and backward, and a cam lever having a cam groove that gradually moves away from the turning center on the side wall of the frame on the one end side can be turned. , One end of a driven link provided with a guide elongated hole that is loosely fitted to the support shaft of the cam lever is connected to the cam groove via a pin, and The is characterized by being connected to the sub-holding block.

According to a second aspect of the present invention, the sub holding block has a guide hole parallel to the advancing / retreating direction, and a guide rod penetrating the guide hole is provided between the other end of the frame and the main holding block. Is preferred. Further, as described in claim 3, it is preferable that the guide rod be wound with a spring that biases the sub holding block in a direction away from the main holding block.

[0007]

According to the first aspect of the present invention, the main holding block provided with the inspection pin is fixed to the frame and does not move, and the sub holding block storing the latter half of the connector moves back and forth by operating the cam lever. Therefore, there is no possibility that the inspection pin will be worn due to vibration or that the lead wire will bend and break, and the durability will be improved. In addition, the combination of the guide hole and the guide rod allows the sub holding block to move forward and backward smoothly with a simple structure (Claim 2), and a spring is wound around the guide rod to fix the sub holding block to the main holding block. Since the force is applied in the direction away from the inspection pin, it is possible to easily detach the inspection pin from the terminal inside the connector at the end of the inspection.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing an embodiment of the present invention in a state in which a cam lever is erected, and FIG. 2 is a perspective view in a state in which the cam lever in FIG. The connector A is configured by accommodating and locking terminals (not shown) connected to the ends of the electric wires 3 in a plurality of terminal accommodating holes 2 provided in a connector housing 1 made of a synthetic resin insulator. Note that the terminal is locked according to known means such as engagement between the protrusion of the flexible locking arm integrally provided from the inner wall of the terminal receiving hole and the shoulder portion of the terminal or the locking hole of the terminal board. Well, illustration is omitted. The terminal inspection device B includes a frame 10, a main holding block 11 located on one end side thereof, and the block 11.
And a sub-holding block 14 that is slidable in opposition to each other, and both blocks 11 and 14 are connected via a cam lever 18 and a driven link 24.

The frame 10 is a rectangular box having side walls 10a, left and right end walls 10b, and a bottom wall 10c which face each other, and a main holding block 11 is fixed to one end side (the right end side in the drawing) in the frame. Has been done. The main holding block 11 receives the front half of the connector A, that is, the mating side with the mating connector, and has a concave portion 12 for receiving the connector A on the front surface, and the concave portion 12 has the terminal of the connector A. Are provided so that the tips of a plurality of inspection pins 13 corresponding to the above-mentioned are projected, and the lead wire 29 connected to the other end of the inspection pins 13 is connected to an inspection machine body not shown.

The sub-holding block 14 supports the terminal insertion side of the connector A and is formed as a concave body having front and rear and upper openings, and a step 15 is provided inside thereof in accordance with the outer shape of the connector housing 1. A groove 15a into which the collar portion 4 of the connector housing 1 is fitted is provided in the step. The sub holding block 14 is slidably provided between the main holding block 11 and the left end wall 10b of the frame 10. That is, the sub holding block 14
A pair of guide holes 14a penetrating in the front and rear direction is provided in the lower part of the guide rod 16. One end of a guide rod 16 penetrating the guide hole 14a is fixed to the front surface of the main holding block 11, and the other end is an end wall of the frame 10. It is fixed to 10b by screws 28. A spring 17 is wound around the guide rod 16 to urge the sub holding block 14 to the side opposite to the main holding block 11.

Further, on the fixed side of the main holding block 11, a pair of cam levers 18 is rotatably attached to the ear piece portion 10d connected to both side walls 10a of the frame 10. The cam lever 18 is composed of a semicircular action plate portion 19 and a handle-like operation plate portion 20 extending obliquely upward from one side of the upper edge portion 19a thereof, and the tip end portion of the operation plate portion 20 is connected by a spacer 21. It is formed as a gate-shaped handle. On the other hand, in the operation plate portion 20, substantially the center of the upper edge portion 19a is supported by the support shaft 22 by the ear piece portion 10d of the side wall 10a.
An elliptical cam groove 23 is provided so as to be pivotally attached to the shaft 22 and to gradually move away from the support shaft 22.
In the cam groove 23, one end of a driven link 24 provided with a guide elongated hole 25 that is loosely fitted to the support shaft (cam shaft) 22 is provided with a pin 2.
6 and the other end of the link is connected to the side wall of the sub holding block 14 by a pin 27.

Next, a method of using the terminal inspector will be described. In the normal state before and after use, the terminal inspecting device B separates from the main holding block 11 and the cam lever 18 because the sub holding block 14 is biased toward the left end wall 10b by the elastic force of the spring 17. Standing up.

In this state, the latter half of the connector A to be inspected is set in the sub holding block 14. To set, the collar 4 of the connector housing 1 may be fitted from above the sub holding block 14 into the groove 15 a of the step 15.
After mounting, pull the cam lever 18 (or the handle) forward as indicated by the arrow P. Then, the cam lever 18 rotates around the support shaft 22, and the sub holding block 14 moves to the main holding block 11 side as shown in FIG. That is, the driven link 24, one end of which is engaged with the cam groove 23, is regulated by the support shaft 22 and the guide elongated hole 25 and advances toward the main holding block 11, and the sub holding block 14 connected to the driven link 24. Connector A is also the spring 1
It moves forward while resisting the resilience of 7. As a result, the front half of the connector A is recessed in the main holding block 11.
And the terminals (not shown) in each terminal accommodating hole 2 come into contact with the corresponding inspection pins 13, and it is judged whether the continuity is good or bad.

When the connector A is moved forward by the turning operation of the cam lever 18, if there is an incompletely inserted terminal in the terminal accommodating hole 2, the terminal abuts against the inspection pin 13 and is pushed out. The condition can also be checked at the same time. In the cam lever 18, the cam groove 2
It is possible to prevent the terminal of the connector A or the inspection pin 13 from being excessively loaded by forming the terminal end portion 23a of 3 into an arc shape centered on the support shaft 22.

After the inspection is completed, when the cam lever 18 is raised, the driven link 24, the sub-holding link 14 and the connector A are retracted by the action opposite to the above. At that time, since a return spring 17 is interposed between the main holding block 11 and the sub holding link 14, it moves back lightly. Further, since the sub holding block 14 and the connector A are moved back and forth along the pair of guide holes 14a and the guide rod 16 penetrating the guide holes 14a, the inspection pin 13 in the main holding block 11 which is a fitting partner thereof vibrates. There is no concern about adverse effects such as rocking or rocking. Further, since the main holding block 11 remains fixed to the frame 10 when the cam lever 18 rotates, the lead wire 2 of the inspection pin 13
It goes without saying that 9 does not bend and there is no disconnection due to this.

The above description has been made of the example in which the sub holding block 14 is slid by the guide hole 14a and the guide rod 16 penetrating the guide hole 14a. However, a pair of guide rails or guide grooves are formed on the bottom wall 10c of the frame 10. It is also possible to arrange them side by side and provide a member for engaging with the rail or groove at the bottom of the sub holding block 14.

[0017]

As described above, according to the present invention, the main holding block having the inspection pin is fixed to the frame and does not move, and the sub holding block storing the latter half of the connector moves forward and backward by operating the cam lever. . Therefore, there is no fear that the inspection pin will be worn due to vibration or the lead wire will be bent and broken, and the durability is improved (claim 1).

Further, by combining the guide hole and the guide rod, the sub-holding block can be smoothly moved forward and backward with a simple structure (claim 2), and further, a spring is wound around the guide rod to mount the sub-holding block. Since the bias is applied in a direction away from the main holding block, the inspection pin and the terminal inside the connector can be easily disengaged at the end of the inspection.

[Brief description of drawings]

FIG. 1 is a perspective view of a cam lever in an upright state according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the cam lever of FIG. 1 is tilted to the front side to inspect the terminals.

FIG. 3 is a perspective view showing an example of a conventional terminal inspection device for a connector.

[Explanation of symbols]

 A connector B connector terminal inspector 1 connector housing 2 terminal accommodating hole 3 electric wire 4 collar 10 frame 10a side wall 10b end wall 10c bottom wall 11 main holding block 12 recess 13 inspection pin 14 sub holding block 14a guide hole 15 step 16 guide Rod 17 Spring 18 Cam lever 19 Action plate portion 20 Operation plate portion 21 Spacer 22 Support shaft 23 Cam groove 23a Cam groove end portion 24 Driven link 25 Guide long hole 26 pin 27 pin 28 Screw 29 Lead wire

Claims (3)

[Claims] 1. A terminal inspecting device for a connector, wherein terminals connected to electric wires are housed and locked in a terminal housing hole from the rear of the connector housing, wherein the front half of the connector housing is provided at one end side in a frame. And a main holding block having an inspection pin for the terminal is provided, and a sub holding block for housing the latter half of the connector housing is provided at the other end side in the frame so as to face the main holding block and to be able to move back and forth. At the same time, a cam lever having a cam groove gradually distant from the rotation center is rotatably provided on the side wall of the frame on the one end side, and one end of a driven link provided with a guide elongated hole that is loosely fitted to the support shaft of the cam lever is provided with a pin Terminal inspection of the connector, characterized in that the other end of the driven link is connected to the sub holding block via the cam groove. . 2. The sub-holding block has a guide hole parallel to its advancing / retreating direction, and a guide rod penetrating the guide hole is provided between the other end of the frame and the main holding block. Connector terminal inspection device. 3. The connector terminal inspection device according to claim 2, wherein a spring for biasing the sub holding block in a direction away from the main holding block is wound around the guide rod.