JPH0255962A - Contact resistance measuring instrument - Google Patents

Abstract

PURPOSE:To reduce man-hour for measurement by making an attachment transfer by the drive of a bed together with making the attachment provided with a probe open and close, and successively measuring a contact resistance of a terminal armature by detecting the location of the terminal armature. CONSTITUTION:A probe 8 and sensor 13 are arranged to a attachment 4 being opened or closed in the direction nipping a connected external connector 1 and internal connector 2, further, the contact of the probe 8 and a terminal armature 2A are detected by a first switch 10, then the open of a bed 6 is detected by a second switch 11. The measurement by a resistance measuring instrument 9 is executed by ON of the switch 10 and by making the switch 11 operate, the attachment 4 is transferred to the direction orthogonal to the open-close direction by movement of the bed 6. As the measurement for one set of the terminal armature is executed, hereafter, the attachment moves to bring the probe into contact with next terminal armature automatically.

Description

[Detailed Description of the Invention] [Summary] The present invention is formed so that a male connector and a female connector are connected, and the contact resistance at the contact portion between the male connector and the female connector is measured by a resistance measuring device. Regarding the contact resistance measuring device, the purpose of the measurement is to improve the efficiency of the measurement work and reduce the number of man-hours. an attachment drive unit that drives an attachment provided with a sensor for detecting the movement so as to be opened or closed in a direction in which a fixed base is held by connecting a female connector to a male connector; A bed transfer section that transfers the loaded vent in a direction perpendicular to the opening and closing directions, and an O
A first switch that is turned on when the attachment is opened, and a second switch that is turned on when the attachment is opened;
When the first switch is turned on, measurement is performed by the resistance measuring device, and when the second switch is turned on, the vent drive section starts to be driven, and the position detection signal of the sensor is output. The configuration includes a control section that controls the operation to be stopped by the following.

[Industrial application field]

The present invention relates to a contact resistance measuring device configured to connect a male connector and a female connector, and to measure contact resistance at a contact portion between the male connector and the female connector using a resistance measuring device.

Connectors widely used in electronic devices need to be highly reliable so that contact resistance does not change due to insertion and removal.

Therefore, when manufacturing such connectors, contact resistance is checked through reliability tests such as temperature and humidity cycles.

However, checking all the pins of the connector by connecting a resistance measuring device requires a huge amount of man-hours.

Therefore, it is desired that the contact resistance of such connectors be measured efficiently.

[Conventional technology]

Conventionally, the configuration was as shown in the conventional explanatory diagram in FIG.

As shown in Figure 5, male connector l and female connector 2
The contact resistance between the male connector 1 and the female connector 2 was measured by connecting a probe 20 connected to a resistance measuring device 9 to each terminal piece IA and 2A.

Therefore, when the measurement of the - pair of terminal pieces IA and 28 is completed, the probe 20 is manually moved to the next terminal pieces IA and 2A.
It is necessary to connect the device to the device and perform measurements sequentially.

[Problem to be solved by the invention]

However, manually reconnecting the probe 20 to each terminal piece IA, 2A requires a lot of man-hours.

Therefore, performing such measurements on all connector bins requires a huge amount of man-hours, and in particular, when performing temperature/humidity cycle tests, multiple measurements (initial, Intermediate.

(final, etc.) is required, and it also requires many times more man-hours.

Therefore, an object of the present invention is to reduce the number of man-hours during measurement by increasing the efficiency of measurement work.

[Means to solve the problem]

FIG. 1 is a diagram explaining the principle of the invention.

As shown in Figure 1, connect the female connector to the male connector with an attachment equipped with a probe that contacts the terminal piece and is connected to the resistance measuring device, and a sensor that detects either of the terminal pieces. an attachment drive unit that drives the locked fixed base in a sandwiching direction to open or close it; and a bed transfer unit that transports the vent loaded with the attachment in a direction perpendicular to the opening and closing directions. a first switch that is turned on when the probe comes into contact with the terminal piece; and a second switch that is turned on when the attachment is opened, and the first switch is turned on. By this, measurement is performed by the resistance measuring device, and by turning on the second switch, driving of the bed driving section is started, and controlled to be stopped by the position detection signal of the sensor. The control unit is configured to include a control unit.
- The lobes can be moved so that they come into contact with each other, and with this configuration, the above-mentioned problem cannot be solved by manually reconnecting the probes as in the past.
This becomes the key point, and it is possible to reduce the number of man-hours.

[Effect]

In other words, a boolean and a sensor are disposed on an attachment that is opened or closed in the direction of sandwiching the connected male connector and female connector, and the first attachment is operated by the contact between the booloby and the terminal piece. A switch is provided, and a second switch is operated when the head is opened.When the first switch is turned on, measurement is performed using a resistance measuring device, and when the second switch is operated, the attachment is moved on the bed. Accordingly, the opening and closing directions can be moved in a direction perpendicular to the opening and closing directions.

Further, this transfer is configured to be stopped by a position detection signal from the sensor.

Therefore, when a measurement is made on the - group of terminal pieces, the attachment is automatically moved to the next terminal piece. do. FIG. 2 is an explanatory diagram of an embodiment according to the present invention, in which (a) is a configuration diagram, (b) and (c) are perspective views of main parts, and
The figure is a detailed explanatory diagram of the present invention, (a) is a circuit configuration diagram, (
b) is a time chart, and FIG. 4 is a flow chart of the present invention. The same reference numerals indicate the same objects throughout the figures.

As shown in FIG. 2(a), a sensor 13 is attached to one side of the attachment 4, which is provided with a probe 8 that comes into contact with the connected male connector l and female connector 2, respectively.
It is driven by an attachment drive unit 5 consisting of an attachment drive motor 5A and a ball screw 5B in which thread grooves in opposite directions are formed with the center part as the boundary, and the attachment 4 is loaded on the bed 6 and 6 is formed to be driven by a vent drive section 7 consisting of a vent drive motor 7A, a guide rod 7B, and a belt 7C.

Further, a control section 12 is provided to control the attachment drive motor 5A and the vent drive motor 7A.
is the position detection signal S1 of the sensor 13, the contact signal S2 from the first switch 10 which is turned on when the probe 8 comes into contact with the terminal piece 2A, and the contact signal S2 from the first switch 10, which is provided in the bed 6 and is turned on when the attachment 4 is opened. It is configured to perform control by receiving the oven signal S3 from the second switch 11 that is turned on.

A spring 8A is installed inside the probe 8, and is normally formed to protrude from the inner wall of the attachment 4.
The probe 8 provided with the first switch 10 is provided with a protrusion 8B, and when the protrusion 8B is pressed, the first switch 10 is turned on, and when the attachment 4 is opened, the second switch 11 is turned on. It is turned on by pressure from the outer wall.

Also, this connected male connector 1 and female connector 2
The attachment 4 is formed to be locked to the tip 3A of the fixed base 3 shown in (b), and the sensor 13 and the probe 8 are disposed thereon. The bed 6, which is rotated and opened or closed in the direction of the arrow, and loaded with the attachment 4, is transferred in the direction of the arrow B via the belt 7C by rotationally driving the vent drive motor 7A under the guidance of the guide rod 7B. It is designed to be

Furthermore, the sensor 13 has a light receiving element 1 as shown in (c).
3A and a light emitting element 13B, and the position detection signal St is outputted from the light receiving element 13^ by being interrupted by a terminal piece.

Therefore, the control section 12 is configured as shown in FIG. 3(a).

The position detection signal Sl from the sensor 13, the ON signal S2 from the first switch 10, and the ON signal S3 from the second switch 11 are each sent to the one-shot circuit 12A, and the one-shot circuit 12A is a start circuit and a stop circuit 12B. It is configured to be activated by

Further, the bed drive motor 78 is driven or stopped via the drive control circuit 12C and the attachment drive motor 5A is driven or stopped via the drive control circuit 120 in response to a drive command or a stop command from the one-shot circuit 12A. Furthermore, the drive control circuit 12C is a drive direction setting circuit 1.
The rotation direction of the bed drive motor 7 is set by 2H.

Therefore, when performing measurements, as shown in (b),
First, the rotation direction of the vent drive motor 7 is set by the drive direction setting circuit 12H to set the transfer direction of the bed 6, and the start/stop switch 12B is turned on.
Starting is started, and the bet drive motor 78 is driven in the direction set via the drive control circuit 12C, and a stop command is output from the one-shot circuit 12A in response to the position detection signal St of the sensor 13. It will be stopped at

Next, the attachment drive motor 5^ is driven by the drive control circuit 120 in response to a measurement start command from the one-shot circuit 128, and in this case, the attachment 4 is closed, so the first switch 10 is turned on, and this O
In response to the N signal S2, the one-shot circuit 12A outputs a measurement command T to the resistance measuring device 9, and the resistance measuring device 9 performs a measurement.

When the measurement by the resistance measuring device 9 is completed, the attachment drive motor 5A is driven in the opposite direction to that described above, in this case the attachment 4 becomes the oven, the second switch 11 is turned on, and the drive is stopped from the one-shot circuit 12A. The command is output to the drive control circuit 120, the attachment drive motor 5A is stopped, and the drive control circuit 12C is further outputted to the drive control circuit 120.
A drive command is output to drive the bet drive motor 7A.

Thereafter, measurements by the resistance measuring device 9 are performed one after another by being stopped by the output signal of the sensor 13 in the same manner.

Therefore, control is performed according to the flowchart shown in FIG.

First, specify the drive direction of the bet and turn on the start switch to rotate the bet drive motor 7A.
Bets move.

By this driving, the light from the light emitting element that has entered the light receiving element of the sensor 13 is blocked by the terminal piece 2A, the position detection signal S1 is output, the bed drive motor 7A is stopped, and the conveyance of the vent is stopped.

Next, the attachment drive motor 5A rotates, the attachment is closed, the probe comes into contact with each of the terminal pieces IA and 2A, and the attachment drive motor 58 is stopped by the ON signal S2 of the first switch.

Therefore, a measurement command is output to the resistance measuring device, the contact resistance is measured, and when the measurement is completed, the attachment drive motor 5A rotates in the reverse direction, and by turning the attachment into an oven, the probe is connected to each terminal piece IA, 28. be separated.

Further, this oven outputs an ON signal S3 from the second switch, and the attachment drive motor 58 is stopped.

Thereafter, the first bed drive motor 7A is driven, and by repeating this, all terminal pieces are measured.

〔Effect of the invention〕

As described above, according to the present invention, the attachment on which the probe is disposed is driven to open or close the oven, and the attachment is moved by driving the vent. The contact resistance of the terminal piece in the connector is controlled by a sensor that detects the position of the terminal piece to be measured, a first switch that detects the contact of the probe, and a second switch that detects the oven of the attachment. can be measured sequentially.

Therefore, there is no need for manual measurements as in the past, and a huge amount of man-hours can be reduced, especially when measurements are performed multiple times during temperature/humidity cycle tests.
The practical effects are great.

[Brief explanation of the drawing]

FIG. 1 is a diagram explaining the principle of the present invention. FIG. 2 is an explanatory diagram of an embodiment according to the present invention, in which (a) is a configuration diagram, and (b) and (c) are perspective views of main parts. FIG. 3 is a detailed explanatory diagram of the present invention, including (a) a road configuration diagram;
b) is a time chart. FIG. 4 is a flow chart diagram of the present invention. FIG. 5 shows a conventional explanatory diagram. In the figure, 1 is a male connector. 3 is a fixed base 5 and an attachment drive section 7 is a bed drive section. 9 is a resistance measuring device 11 is a second switch 13 is a sensor 2 is a female connector. 4 is attachment. 6 is a bet. 8 is a probe. 10 is the first switch. 12 is a control unit. IA, 28 indicates a terminal piece. Sochi. 1st prize by Rimoto Yakusho 2nd figure Tsumekin 5th 2nd row, Tanuki name 4th figure 1st figure Furo Ming tho, j degree p part power explanatory diagram 3rd figure (Zono 1) 1 increase, j determined, 9 materials, Japan, Inshun, n, explanation country chart

Claims (1)

[Claims] Connecting a male connector (1) and a female connector (2),
By connecting each terminal piece (1A, 2A) to the resistance measuring device (9), the male connector (1) and the female connector (2)
) is a contact resistance measuring device for measuring continuity resistance at a contact portion with Terminal piece (1A
, 2A), and the attachment (4) equipped with a sensor (13) for detecting either one of the
1) in the direction of clamping the fixed base (3) which is locked by connecting the female connector (2) to the connector (2), or
Attachment drive unit that drives it so that it is closed (
5) and a bed (6) loaded with the attachment (4).
) in a direction perpendicular to the open and close directions, and a first switch that is turned on when the probe (8) comes into contact with the terminal piece (1A, 2A). (10) and a second switch (11) that is turned on when the attachment (4) is opened, and when the first switch (10) is turned on, the resistance measuring device (9) is measured. measurements are taken and the second
The control unit (12) controls the bet drive unit (7) to start driving when the switch (11) is turned on, and to be stopped by the position detection signal of the sensor (13).
) A contact resistance measuring device comprising: