KR20060116003A - Jig for installation inspection - Google Patents

Abstract

An inspection jig for a harness inspection device, where, even when specifications of a connector constituting harness are changed, it can be dealt with by a small change, eliminating need for newly making all jigs, as has been conventionally done, every time when connector specifications are changed. A connector- holding section (400) having a receiving section (450) for receiving a connector housing (10), wherein sensor plates are provided on side inner wall sections, which are opposite to each other, of the receiving section (450), an alternate current signal is applied to a terminal inserted in a connector (10), the alternate current signal from the terminal is detected by the opposite sensor plates, the relative distance between the sensor plates and the terminal is detected by an inspection control section (100) based on the signal detected by the opposite sensor plates, the position of the terminal installed in the connector is detected from a relative value of the detection signal at the sensor plates, and thus whether or not the terminal is correctly inserted is confirmed. When the outer size of the connector is smaller than the connector-receiving section (450), the connector (10) is set in a through-hole (465a,b) of an attachment member (460a, 460b), and the connector (10) is received in the connector-receiving section (450) together with the attachment member (460a,b).

Description

Jig for mounting inspection {JIG FOR INSTALLATION INSPECTION}

TECHNICAL FIELD The present invention relates to a mounting inspection jig that can be inspected even by replacing only some jigs even in various types of connector housings when inspecting the mounting of a cut-off electric wire to which a terminal is fixed.

When manufacturing the harness, it is necessary to check whether the harness is correctly assembled. Conventionally, for example, in Patent Literature 1, each input terminal of the input terminal group on the inspection apparatus main body side and each connection terminal of each output terminal of the output terminal group are respectively connected to the input side connector and the output side connector on the working panel side, and stored before the inspection. In the mode operation, the connector of both ends of the model harness is fitted to the input side and the output side connector on the working panel side, and the insertion state between the terminals of each end of each core wire which is a means of the model harness and the insertion hole of each terminal of the connector is used as reference data. I remembered.

After that, when the end terminal of the cut-off wire to be inspected constituting the harness is mounted between the input side and the output side connector on the working side, in the inspection mode operation, an inspection signal is sequentially applied to each input terminal of the input terminal group from the inspection apparatus main body side. Outputs the test signal from the input connector, one connector, the tested wire, the other connector, the output connector, and the output terminals of the output terminal group, and then through the terminal in any terminal insertion hole of the output connector. Judgment as to whether or not a signal was input was repeated, and test data in the inserted state between each core wire of the tested wire to be tested and each terminal insertion hole of the connector mounted at both ends thereof was collected.

The inspection data thus obtained is compared with the reference data already stored to determine whether or not a defect occurs in the inspection data.

Patent Document 1: Japanese Patent Application Laid-open No. Hei 8-146070

However, in the above-described method of Patent Document 1, it is necessary to directly contact the inspection probes from the inspection device to the terminal portions of both the inspection signal supply side and the inspection signal receiving side of the inspection harness, so as to cut the pressure to constitute the inspection harness. In accordance with the shape of the connector on which the terminal of the electric wire is mounted, a dedicated inspection probe was produced every time, and it was necessary to reliably contact at least a part of the terminal mounted on the connector.

In addition, deterioration, abrasion, or breakage of the inspection probe may occur, resulting in terminal deformation.

In addition, the miniaturization of connectors has increased, and the cost of producing a jig for a connector has also increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and it is possible to confirm the mounting state of a cut wire terminal in a connector with a simple configuration, which is versatile, and in the manufacturing process of a harness without damaging the cut wire terminal. It is an object of the present invention to provide an inspection apparatus that can detect a mounting position of a cut wire terminal to a connector in a non-contact manner.

In addition, an object of the present invention is to provide a test apparatus capable of determining a mounting failure of a cutting wire terminal to a connector in a manufacturing process of a harness and providing a reliable harness without passing through a special test process.

As one means of achieving this object, for example, the following configuration is provided.

That is, the mounting inspection jig which uses the mounting position in the connector housing of the terminal to which an alternating signal was applied to the mounting inspection apparatus of the terminal which can test non-contactingly to a terminal, The holding | maintenance part which holds and holds the said connector housing, and the said holding part A connector housing of the terminal to which the AC signal is applied, having at least a pair of conductive plates disposed opposite to a side surface position of the connector housing housed in the connector housing and capable of detecting an AC signal from the terminal mounted in the connector housing. The mounting jig is characterized in that the mounting inspection jig makes it possible to discriminate the mounting position in the connector of the terminal to which the AC signal is applied from the AC signal result in each of the opposing conductive plates.

Moreover, it is a mounting inspection jig which uses the mounting position of the terminal in which the test signal was applied in the connector housing for the test | inspection of the mounting | attachment of the terminal which can be inspected, The attachment member which can accommodate the said connector housing, and hold | maintains and hold | maintains the attachment member. And a support portion and at least one pair of conductive plates disposed on the side surface of the holding portion.

And, for example, the inspection signal is an alternating current signal, the conductive plate can detect the alternating current signal at the terminal mounted in the connector housing, the attachment member is formed in accordance with the connector housing means, the holding portion is the connector housing means Irrespective of the fact that it is common.

Or the mounting inspection method in the mounting position inspection apparatus of the terminal which can determine the mounting position in the connector housing of the terminal to which an alternating signal was applied non-contacted to a terminal, The jig for mounting inspection of Claim 1 or 2 characterized by the above-mentioned. At least one pair of conductive plates which are accommodated in the housing recess through the attachment member of the circuit board, and which are provided so as to face an AC signal at a terminal on which a cutting wire is applied to which an AC signal is mounted in the connector housing. And a mounting position checking method of a terminal for discriminating a mounting position in the connector housing of a terminal mounted on a cut-down wire to which the AC signal is applied from the relative detection value of the detection signal from each of the conductive plates. do.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram for demonstrating the basic principle of the attachment state confirmation apparatus of the terminal which detects the state of mounting a cutting-down electric wire terminal to the connector of one Embodiment which concerns on this invention.

Fig. 2 is a diagram for explaining the detailed configuration of the inspection signal processing section of the inspection control section in the embodiment.

3 is a diagram illustrating a detection example of the inspection control unit in the example of the present embodiment.

4 is a schematic view for explaining an example of the configuration of the connector holding portion of the embodiment.

Fig. 5 is a flowchart for explaining a mounting test method in the mounting state checking device for terminals with respect to the connector of the embodiment.

Fig. 6 is a view for explaining an attachment member of a second embodiment example according to the present invention.

FIG. 7 is a diagram for explaining the detailed configuration of an inspection signal processing section of an inspection control section according to the third embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment example which concerns on this invention is described in detail with reference to drawings.

The device for checking the mounting state of the terminal of this embodiment is a device capable of non-contact determination with the connector housing and the terminal whether or not the terminal of the correct cutting wire is correctly mounted at the correct position of the connector housing. In this case, it is possible to discriminate whether or not the correct cutting wire terminal is properly mounted when the harnessed wire terminal is mounted in the connector in the manufacturing process of the harness, so that the check of the mounting state to the connector is unnecessary in the next step.

<First Embodiment Example>

First, the inspection principle of the mounting state of the terminal of the apparatus for confirming the mounting state of the terminal to which the present invention is applied will be described with reference to FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram for demonstrating the basic principle of the attachment state confirmation apparatus of the terminal which detects the attachment state of the cutting wire terminal to the connector of one Embodiment example which concerns on this invention.

In Fig. 1, reference numeral 10 denotes a connector housing (hereinafter referred to as a "connector") constituting a harness end to be inspected, and one end terminal of the cutting wire 300 having a predetermined specification is defined at a predetermined position in the connector 10. Is inserted to a predetermined depth.

The cutting wire 300 attached to this connector is cut | disconnected to predetermined length previously, and the terminal of the predetermined | prescribed specification which should be mounted in the connector 10 is fixed to the edge part, for example by crimping | bonding etc.

The connector 10 is accommodated in the connector accommodating portion 450 of the connector holding portion 400. Y-axis sensors 20a and 20b and X-axis sensors 30a and 30b, which will be described later, are disposed to face each other on the inner wall of the connector housing portion, and when the connector 10 is stored in the connector housing portion 450, the connector ( 10) It is comprised so that the position may be near the outer wall of a side surface.

Reference numerals 20a and 20b denote Y-axis sensors disposed on opposite sides of the connector 10 disposed on the inner wall portion of the connector accommodating portion 450, for example, on the inner wall which becomes both sides of the long side if the connector 10 is rectangular from the top. The plates, 30a and 30b are arranged near the opposite side of the connector 10 disposed on the inner wall portion of the connector housing portion 450, for example, the inner wall which becomes both sides of the short sides if the connector 10 is rectangular from the top. X-axis sensor plate.

Reference numeral 100 denotes an inspection control unit in charge of controlling the inspection apparatus, and is connected to each sensor plate disposed in the connector holding unit 400 by a signal line, and is configured to be able to detect a detection signal from each sensor plate.

Since the sensor plates 20a, 20b, 30a, and 30b are arranged in the vicinity of each side surface of the connector 10, when the cut-out wire terminal to which the AC signal is applied is attached to the connector 10, the connector 10 The signal is detected by the sensor plates 20a, 20b, 30a, and 30b, so that a detection signal can be obtained. Specifically, a detection signal corresponding to the distance from the terminal is detected.

In the inspection control part 100 of the example of this embodiment, based on the value of the detection signal detected by a pair of opposing sensor boards among the sensor boards 20a, 20b, 30a, 30b, The relative distance between the sensor plate and the terminal is detected. Thereby, the influence of the level difference (gap of the applied test signal intensity) of the AC signal applied to the cutting wire is reduced.

The Y-axis sensor 20a, 20b detects the position of the Y-axis direction (short side direction) in the connector 10, and the X-axis direction (long-side direction) in the connector 10 is detected by the X-axis sensors 30a, 30b. By detecting the position of), the insertion position in the connector 10 of the terminal to which the AC test signal is applied can be specified, and it can be detected whether it is inserted in the correct position.

The detailed configuration of the inspection signal processing section of the inspection control section 100 shown in FIG. 1 will be described below with reference to FIG. Fig. 2 is a diagram for explaining the detailed configuration of the signal processing section of the inspection control section of the embodiment.

In Fig. 2, reference numerals 111 to 114 denote amplifiers A to D for amplifying a detection signal from the sensor plates 20a, 20b, 30a, and 30b, and reference numerals 121 to 124 refer to sensor plates 20a, 20b, 30a, and 30b. Peak detection circuits A to D for detecting peak values of the detection signals.

Reference numeral 131 denotes an X-axis addition circuit for inputting peak detection signals Vx1 and Vx2 from the X-axis sensors 30a and 30b, and adding the detected values (Vx1 + Vx2), and reference numeral 132 denotes Y-axis sensors 20a, It is a Y-axis addition circuit which inputs peak detection signals Vy1 and Vy2 in 20b), and adds the detected values (Vx1 + Vx2).

Reference numeral 141 inputs the output of the X-axis addition circuit 131 and the peak detection signal value of one X-axis sensor plate (for example, reference numeral 30b), and the X-axis addition signal Vx1 + in the X-axis addition circuit 131. It is an X-axis division circuit which calculates {Vx2 / (Vx1 + Vx2)} which uses Vx2) as a denominator, and uses the peak detection signal Vx2 as a molecule in one X-axis sensor plate (for example, code | symbol 30b).

The output of the X-axis division circuit 141 represents the relative change in the detection signal of the X-axis sensors 30a and 30b, and even if there is a change in intensity in the AC test signal applied to the cut-out wire, the influence can be canceled out. . As a result, the output of the X-axis division circuit 141 becomes a signal level that corresponds directly to the position in the X-axis direction in the connector 10, so that the pressure is mounted in the connector 10 from the output of the X-axis division circuit 141. The X-axis position of the wire terminal can be detected without contact.

Reference numeral 142 inputs an output from the Y-axis addition circuit 132 and a peak detection signal value from one Y-axis sensor plate (for example, reference numeral 20b), and inputs the Y-axis addition signal Vy1 from the Y-axis addition circuit 132. It is a Y-axis division circuit that obtains {Vy2 / (Vy1 + Vy2)} whose denominator is + Vy2) and whose peak detection signal Vy2 is a molecule of one Y-axis sensor plate (for example, code 20b).

The output of the Y-axis division circuit 141 represents the relative change in the detection signal of the Y-axis sensors 20a and 20b, and even if there is a change in intensity in the AC test signal applied to the breakdown wire, the influence can be canceled out. have. As a result, the output of the Y-axis division circuit 142 becomes a signal level that corresponds directly to the position in the Y-axis direction in the connector 10, so that the pressure is mounted in the connector 10 from the output of the Y-axis division circuit 142. The position of the wire terminal in the Y-axis direction can be detected without contact.

From the output of the X-axis division circuit 141 and the output of the Y-axis division circuit 142, the mounting position (two-dimensional position) in the X-Y direction of the cutting wire terminal in the connector 10 can be detected without contact.

In the above circuit configuration, if X or Y is n in the X-axis sensor plate and the Y-axis sensor plate,

[1 / {(1 / Vn2) + (1 / Vn1)}] / Vn1

= {(Vn1 × Vn2) / (Vn1 + Vn2)} / Vn1

= (Vn2) / (Vn1 + Vn2)

Is true.

In other words, in the present embodiment, since the AC test signal is detected by using electrostatic coupling, the detection level of the test signal on the conductive plate is a value inversely proportional to the distance to each of the cut-out wire terminals.

Therefore, the reciprocal calculation values 1 / Vx1 and 1 / Vx2 are respectively values proportional to the distance to the cutting wire terminal.

Therefore, the sum {(1 / Vn1) + (1 / Vn2)} is an amount corresponding to the distance (reference distance) of the conductive plates 20a, 20b or 30a, 30b. Therefore, the final amount [1 / {(1 / Vn2) + (1 / Vn1)}] / Vn1 represents the position of (1 / Vn1) with respect to the reference distance, thereby absorbing the uniformity variation applied to the supply test signal. Doing. In addition, the result of this ratio is an amount proportional to distance, and is suitable for use for inspection.

As shown in Fig. 1, the distance between two conductive plates arranged at right angles in the column direction of the connector is referred to as the reference distance at the time of position measurement (the measured value is expressed as a relative value with respect to the reference distance). As the reference value, there are at least reference values for the X-axis sensor plates 30a and 30b and reference values for the Y-axis sensor plates 20a and 20b.

The tolerance of the reference distance is determined by the mechanical precision of the holder to be used, for example, when using a holder for holding the connector. However, in this embodiment, the tolerance of about 0.1 mm can be sufficiently realized, so that the position measurement of the terminal can be accurately performed. Can be.

In performing measurement, the test signal detection level detected by a pair of conductive plates is different depending on the terminal mounting position on the connector, but by matching the amplification degree and the offset when processing the test signal on each of the opposing conductive plates, for example, When the peak value is detected, Vx1 and Vx2 can be obtained as DC voltage values. For example, if {Vx2 / (Vx1 + Vx2)} is obtained from the X-axis division circuit, the voltage value Vx1 corresponding to the mounting position L of the test signal supply terminal is obtained. You can get it.

For this reason, even if the level of the test signal applied to the cutting wire is (1/2) for some reason, all the values of Vx1, Vx2, etc. become (1/2), so that There is no impact.

Therefore, in the example of the present embodiment, the above calculation result when the terminal to which the test signal is applied is inserted into each connector position is examined and held as a reference value, and when the terminal to be inspected is inserted, it is compared with this reference value. To detect the insertion position.

Moreover, the calculating part which adds, divides, etc. which were mentioned above may be comprised by a hardware calculation circuit, or may be implemented by software calculation using a computer and a computer program.

3 shows an example of the inspection result in the inspection control unit. 3 is a diagram for explaining an example of a detection result by the inspection control unit in the embodiment.

In the example of Fig. 3, the terminal holding portion (cavity) of the connector housing is configured to have six rows of lattice cavities in two rows at the top and bottom, as shown in Fig. 1, and the terminal positions 1 and 2 at the bottom row of the terminals. This is an example (unit is "V") processed by the hardware arithmetic circuit in the case of shifting and inserting from step to step.

Since the electrostatic coupling is used to supply the AC test signal to the cutoff wire, it is expected that the level of the test signal cannot be made constant and greatly fluctuate. For this reason, when the inspection signal of 20 Vp-p is applied to the cutting wire and the inspection signal of 10 Vp-p is applied, the detection results when the terminals are inserted into the respective cavities of the connector housing are compared. .

In the example of Fig. 3, an example of the test signal detection result when the test signal having the upper end is 20 Vp-p and the division circuit output after the calculation, and the test signal detection result when the test signal having the lower end is 10 Vp-p is given. This is an example of the output of the division circuit after the calculation, and even if the inspection signal level applied to the cutting wire is greatly changed, the variation of the division circuit output voltage (X1) is less than 4% and a detection result unique to the cavity position can be obtained. have.

The detection results are shown in Table 1. In Table 1, the vertical axis represents the X voltage calculation value, the horizontal axis represents the terminal insertion row position of the cavity, the terminal insertion position in each of the first to sixth columns, and the left end shown in the lower end of FIG. In one row, the right end is in the sixth row.

Table 2 shows the relationship between the computed value X of the divider in Table 1 and the cavity position.

As shown in the lower part of Fig. 3, the relationship between the calculation result and the cavity position is as shown in the graph.

Since the connector housing has cavities at equal intervals with a pitch of about 2.5 mm, there is a proportional relationship between the calculated value of X and the cavity position, and because the upper and lower ends of the connector housing shown in Table 2 are not affected by the supply voltage, they are almost the same value. , X can be used to specify the cavity into which the terminal is inserted.

This is completely the same for the Y-axis sensor plates 20a and 20b, and it is set as the cutoff wire tester which can obtain a stable detection result even if the inspection signal supplied to the cutoff wire changes.

From the above, the insertion position into each cavity in the column direction is specified by the X-axis sensor plates 30a and 30b, and the insertion position into the cavity in the row direction is specified by the Y-axis sensor plates 20a and 20b. have.

Moreover, in the inspection apparatus used in a manufacturing process, the connector 10 is positioned and accommodated in the connector accommodating part 450 of the connector holding | maintenance part 400 in a cut-out electric wire manufacturing site, and each sensor plate is located in the vicinity of the side of a connector. Or it needs to be positioned near the floor.

For this reason, in the present embodiment, the connector holding portion is used to hold the connector and to position the sensor plate.

In the connector holding part 400 of this embodiment, each sensor plate is arrange | positioned at the side wall part of the connector accommodating part 450, and when a size of a connector is substantially the same as the size of the connector accommodating part 450, it is stored as it is. By doing so, good inspection is possible. However, the present invention is not limited to this case. When the size of the connector is smaller than that of the connector accommodating portion 450, the outer shape is almost the same as that of the connector accommodating portion 450. An attachment member made of, for example, a resin in which a through hole can be formed may be created, and the connector member may be stored after storing the attachment member in the connector housing portion 450.

An example of the inspection jig which accommodates a connector housing in a connector accommodating part via the attachment member of the example of this embodiment is shown in FIG. In Fig. 4, reference numeral 400 denotes a connector holding portion including a connector housing portion 450 for holding and holding the connector 10 in a state of positioning.

Reference numeral 450 denotes a connector housing portion in which each sensor plate 20a, 20b, 30a, 30b is disposed on the side (not shown in Fig. 4), and the connector housing can be accommodated and held in the center. When the outer shape of the connector housing is the same as the inner shape of the connector accommodating portion 450, the connector housing is accommodated in the connector accommodating portion 450 as it is.

On the other hand, when the outer shape of the connector housing is smaller than the inner volume (inner shape) of the connector housing portion 450, the outer shape is substantially the same as the connector housing portion 450, and the storage space almost the same as that of the connector housing to be inspected near the center portion ( For example, the connector housing is accommodated via an attachment member having a through hole or a hole). In the following description, an example in which the through-hole is most easily manufactured as the storage space of the connector housing will be described.

Reference numerals 460a and 460b of FIG. 4 are loosely fitted in the connector accommodating portion 450, and are attachment members for accommodating the connector housings 10a and 10b in the central through holes 465a and 465b.

In the example of Fig. 4, a relatively large connector 10a is accommodated in the through hole 465a of the attachment member 460a on the left side, and a relatively small connector 10b within the through hole 465b of the attachment member 460b on the right side. ) Is housed.

In addition, the X-axis sensor plates 30a and 30b and the Y-axis sensor plates 20a and 20b are fixed to the inner wall side surfaces of the connector holding portion 450 of the connector holding portion 400, respectively. It is comprised so that it may become substantially fixed distance with the connector side hold | maintained and hold | maintained in this, or the connector side hold | maintained by attachment member 460a, 460b.

Therefore, the attachment members 460a and 460b are set and held in the connector accommodating portion 450 of the connector holding portion 400 at the time of cutting wire insertion, and the connector 10 is simply attached to the attachment members 460a and 460b. The mounting inspection of the cutting wire can be carried out simply by storing the.

By providing the above structure, even if it is necessary to attach a cutting wire terminal to various sizes of connectors, when a connector is smaller than the connector accommodating part 450, it is formed with resin etc., for example. The external shape may be accommodated in the attachment member 460a, 460b of the connector accommodating part 450 shape, and this attachment member 460a, 460b may be accommodated in the connector accommodating part 450, and this inexpensive attachment member 460 may be carried out. By exchanging, it is possible to easily cope with connectors of various specifications. In this case, high accuracy and reliability can be inspected.

In the inspection apparatus using a computer, a terminal insertion position can be processed as coordinate position data. For this reason, even if the specification of a connector housing is changed, it can respond only by changing terminal insertion position data (coordinate position data) on the inspection apparatus side.

Also on the jig side, the connector housing is accommodated in the connector housing through the attachment member. Therefore, the attachment member which changed the shape of the through hole of the attachment member having a common external shape is prepared and replaced with respect to the change of the specification of the connector housing. It can cope with various kinds of connector housings simply by doing so.

In addition, the attachment member can be simply and quickly prepared for the attachment of the connector housing by forming the through hole as much as that of the connector housing, which is easy to process, except that the attachment member is shaped like a connector housing. It is possible to respond quickly to specification changes.

For this reason, although a dedicated jig had to be newly produced every time a conventional connector specification was changed, by making the said structure, an attachment member can be manufactured only by forming the through-hole which is the easiest to process, by having a standardized external appearance, and for a short period of time, You can get the inspection jig easily and inexpensively.

The control of the cutting wire terminal mounting on the connector 10 of the apparatus of the present embodiment having the above configuration will be described below with reference to the flowchart of FIG. 5. Fig. 5 is a flowchart for explaining a mounting inspection method in the mounting position confirming device for terminals with respect to the connector of the embodiment.

In FIG. 5, first, in step S1, the connector 10 is accommodated in the connector housing portion 450 of the connector holding portion 400 shown in FIG. 4, and held in the connector holding portion 400. As shown in FIG.

In the example of this embodiment, when the connector 10 is accommodated in the connector accommodating part 450 positioned at the insertion work position of a cut-out electric wire, each sensor board 20a, 20b, 30a, 30b is a case where the connector 10 Positioning arrangement | positioning is carried out so that it may become a side surface vicinity, and it will be in the testable state mentioned later only by positioning and storing the connector 10 in the connector accommodating part 450. For this reason, when the housing | casing of the connector 10 was performed correctly, it should just transfer to the process of step S2 or less.

When positioning of a connector is performed, it progresses to step S2 and power supply (application of a test signal) of the AC test signal of predetermined frequency is started to the cutting wire 300 which should be inserted into the connector 10. FIG.

In the next step S3, the inspection control unit of the inspection apparatus is activated to prepare for inspection of insertion of the cut wire terminal to which the inspection signal is applied.

Next, in step S4, the inspection control unit 100 is driven to start detection of the terminal insertion position (mounted state). In the test | inspection control part 100, the peak detection circuits A-D 121-124 start peak detection of the detection signal in each sensor board by the operation mentioned above.

The operator inserts the mounting terminal of the cutting wire to which the inspection signal is applied to the predetermined position of the connector, and performs the mounting work. When the mounting work to the connector is performed, the detection result of each sensor plate can be obtained, and the insertion position of the terminal into the connector is detected from the detected peak value.

When the mounting of the cut-down wire terminal to the connector is finished, the flow advances to step S5 to determine whether the inspection control section 100 has detected that the terminal of the cut-down wire to which the AC signal is applied has been inserted into the predetermined connector position. .

The detection of the mounting is completed when the terminal is mounted in the connector 10 and the position of the mounted terminal does not change for a certain time, for example. That is, when the detection signal level in each sensor board 20a, 20b, 30a, 30b becomes more than a fixed level and does not change for a fixed time, it can be considered that it is determined that insertion of a terminal is completed. In addition, the operator may determine that the mounting is completed by turning the switch ON.

In the example of this embodiment, the measurement of the terminal insertion position in the connector 10 measures the detection signal value in each case when the terminal is inserted into each position of the connector in advance, and registers it as a reference measurement, for example. The threshold value for discriminating is calculated | required, and it registers with a reference measurement value.

And the measurement detection result on the X-axis sensor board detected in the test mode and the measurement detection result on the Y-axis sensor board are compared with the reference measurement value, and the connector position which inserted the terminal is discriminated from these measurement detection results.

For example, the determination of the insertion position is performed by comparing the detection result when the cutting wire terminal is correctly inserted in the correct position in advance with the detection result when the cutting wire terminal is mounted by the operator, and the error is suppressed within a predetermined range. In this case, it is determined that the installation is normal. In the present embodiment, when the detection signals at the respective sensor plates 20a, 20b, 30a, and 30b are different from those in the normal case when it is not mounted at the normal position, the cutting pressure to which the AC signal is applied in step S5 is applied. If it is not detected that the wire terminal has been inserted into the predetermined connector position, the flow advances to step S6 to identify the cause of the failure.

In the determination of the insertion position in the above description, the detection result when the cutting wire terminal is correctly inserted in the correct position beforehand is compared with the detection result at the time of mounting the cutting wire terminal by the operator. The insertion of the terminal may be checked by comparing the calculated terminal insertion position with the exact position derived from the result.

For example, when the insertion of most terminals could not be detected, it is determined that a cutting wire terminal which is not to be mounted is attached to which the inspection signal is not supplied or that the terminal portion is not connected (disconnected) to the cutting wire portion. .

In subsequent step S7, the worker is notified of the occurrence of the defect and its cause. In addition to the notification by an alarm sound and the blinking display of an error site | part, a cause indication is performed, for example in the display panel which is not shown in figure, and a bad site | part and a correct insertion position are displayed.

The operator receives this error notification and then performs the necessary error processing. For example, when the insertion position is incorrect, when the cutting wire terminal is deformed, the inserted cutting wire terminal is removed, and another new cutting wire terminal is inserted into the connector 10.

On the other hand, in step S5, when the inspection control part 100 detects that the cutting wire terminal to which the AC signal was applied was inserted into the predetermined connector position, it progresses to step S10 and the cut-out wire terminal to the connector 10 is carried out. It is determined whether or not the installation is completed. When the mounting of the cutting wire terminal to the connector 10 is completely finished, it is notified by the end sound, for example, and the mounting of the terminal to the connector is terminated.

In step S10, when the mounting of the cutting wire terminal to the connector 10 has not been completed, the flow advances to step S15 to specify the cutting wire terminal to be mounted next and the storage position in the connector 10. Proceed to S2.

As described above, according to the embodiment, the cut-out wire terminal to the connector housing is not disposed at all without touching the cut-out wire terminal attached to the connector housing by simply disposing the sensor plates facing each side outer wall of the connector housing. In the mounting step, the mounting position to the connector can be detected, so that the occurrence of defective products can be found in the manufacturing step, and the efficient production of the cut wires becomes possible.

In the present embodiment, only the housing of the connector in the connector housing allows inspection of the insertion position of the terminal. Therefore, even if the harness specification is changed and the connector specification is changed, it is sufficient that the connector can be stored in the connector housing. Even if the connector specification is changed, it is possible to cope with only a slight change such as changing the attachment member, so that every jig need not be newly produced every time the connector specification is changed as in the prior art.

In addition, there is no need to bring the test probes into contact with the terminals, which eliminates the need for test probe terminals corresponding to the number of terminals with connector, and even if the number of mounting terminals to the connector increases, many signal lines from the test apparatus to the test probe are unnecessary. Only four signal wires connected to the sensor plate can inspect the terminal mounting state in the connector.

Further, according to the embodiment, since the inspection result of the state of attachment of the cutting wire terminal to the connector housing is recognized as the detection coordinate data in the connector holding portion, even if the connector specification is changed, for example, the connector position is used as the new coordinate data. Can be defined As a result, for example, only the coordinate data of the inspection apparatus is corrected in correspondence with the connector specification, the specification change of the inspection target connector can be coped with, and a very versatile inspection apparatus is realized. Also in this case, the inspection jig side is completed with a slight change of changing the attachment member, and it can respond quickly and easily to various kinds of various connector specifications.

Second Embodiment Example

In the above description, the attachment member demonstrated the example which arrange | positions one storage space which accommodates a connector in the center substantially. However, the present invention is not limited to the above example, and may be configured to include two or more storage spaces for storing two or more connectors in one attachment member, for example. Or as a structure which accommodates two or more attachment members in the connector accommodating part of a connector holding part, you may accommodate a connector in each attachment member. With the above configuration, the terminal insertion state to two or more connectors may be inspected.

A second embodiment according to the present invention for storing a plurality of connectors in a connector housing portion of a connector holding portion will be described with reference to FIG. Fig. 6 is a view for explaining the attachment member in the second embodiment example according to the present invention. In addition, the following description demonstrates the case where two connectors are accommodated in the connector accommodating part of a connector holding part as an example. Obviously, two or more can be inspected as well.

Also in the 2nd Embodiment example, the structure other than an attachment member is the same as that of the 1st Embodiment example mentioned above, The following description demonstrates a structure different from the 1st Embodiment Example mentioned above, A connector accommodating part and an attachment member The description of other configurations is omitted.

6A shows an example in which two connectors are accommodated in the attachment member, and (B) shows an example in which two attachment members are accommodated in the connector accommodating portion.

In Fig. 6, as an attachment member to be accommodated in the connector accommodating portion 450, an attachment member 460c shown in (A) is provided with two connector accommodating spaces (connector accommodating hole portions) 465c and 465d. The connector is accommodated in each connector receiving space 465c and 465d.

In addition, in the attachment members 460e and 460f shown in FIG. 6B, connector accommodation spaces 465e and 465f are arrange | positioned at each center part. When the attachment members 460e and 460f are placed in two rows, the attachment members 460e and 460f are exactly the same size as that of the connector accommodating portion 450 of the connector holding portion 400, so that the fitting members 460e and 460f fit snugly. For this reason, the attachment members 460e and 460f do not rattle.

In the inspection control part 100 which carries out the mounting inspection of the cut-down wire terminal supplied with the inspection signal in the connector housing, between the sensor plates based on the value of the detection signal detected by a pair of opposing sensor plates among the sensor plates. Since the relative distance between the sensor plate and the terminal is detected based on the distance, an inspection result that is not influenced at all by the number of connectors can be obtained.

As described above, according to the second embodiment, the insertion state of the terminals inserted into each of the two or more connectors can be inspected by the set of terminal position inspection devices.

[Example 3]

In the embodiment described above, an example in which the X-axis or Y-axis sensor plates are arranged to face each other with the connector housing interposed therebetween has been described. However, the present invention is not limited to the above example, but may be disposed in close proximity so that two sensor plates are reversed by a predetermined distance on one side of the connector housing portion so as to be nearly parallel.

For example, by attaching the sensor plates to both sides of the sheet-shaped insulating material and arranging them on the side inner wall surface of the connector housing portion, the positioning arrangements are performed such that the two sensor plates are inverted by a predetermined distance on one side of the connector housing portion and become almost parallel. Do it.

In addition, the arrangement method of a sensor plate is not limited to the above example, It may be embedded in the side wall, or when using an attachment member, you may adhere to the side wall of an attachment member, respectively.

The inspection principle of the inspection apparatus in the third embodiment in which two sensor plates are inverted by a predetermined distance on one side of the connector housing portion and positioned close to each other so as to be almost parallel will be described below with reference to FIG. 7 is a diagram for explaining the detailed configuration of an inspection signal processing section of the inspection control section in the third embodiment.

In Fig. 7, reference numerals 20c and 20d denote Y-axis sensor plates, 30c and 30d denote X-axis sensor plates, and 111 to 114 amplifiers A to D amplify detection signals from the sensor plates 20c, 20d, 30c, and 30d. And 121 to 124 are peak detection circuits A to D for detecting peak values of detection signals in the sensor plates 20c, 20d, 30c, and 30d.

Reference numeral 135 is an X-axis subtraction circuit which inputs a detection peak signal from the X-axis sensor 30c 30d and outputs the difference (Vx1-Vx2). Reference numeral 136 denotes a Y-axis subtraction circuit which inputs the detected peak signal from the Y-axis sensors 20c and 20d and outputs the difference (Vy1-Vy2).

Reference numeral 145 denotes a denominator of the X-axis difference signal (Vx1-Vx2) in the X-axis subtraction circuit 135, and Vx2 / (Vx1-Vx2) which uses the detection signal (Vx2) in the X-axis sensor 30d as a numerator. ) Is an X-axis division circuit.

The output of the X-axis division circuit 145 represents the relative change in the detection signal of the X-axis sensors 30c and 30d, and cancels the influence of the change in the intensity of the signal applied to the cutoff wire at the power supply section (powered). Can be.

As a result, the output of the X-axis division circuit 145 becomes a signal level proportional to the distance between the terminals of the cutting wires and the respective X-axis sensors 30c and 30d, so that the terminal is output from the output of the X-axis division circuit 145. It is possible to detect non-contact whether or not is correctly inserted in the X-axis position.

Reference numeral 146 denotes a denominator of the Y-axis difference signal Vy1-Vy2 of the Y-axis subtraction circuit 136, and the detection signal Vy2 of the Y-axis sensor 20d as a numerator {Vy2 / (Vy1-). It is a Y-axis division circuit for obtaining Vy2)}.

The output of the Y-axis division circuit 146 represents the relative change in the detection signal of the Y-axis sensors 20c and 20d, and can cancel out the influence of the change in the intensity of the signal applied to the cutoff wire at the power supply (powered). have.

As a result, the output of the Y-axis division circuit 146 becomes a signal level proportional to the distance between the terminals of the cutting wire and the respective Y-axis sensors 20c and 20d, so that the terminal is output from the output of the Y-axis division circuit 146. It is possible to detect non-contact whether or not is correctly inserted in the Y-axis mounting position.

From the output of the X-axis division circuit 145 and the output of the Y-axis division circuit 146, the mounting position (two-dimensional position) in the X-Y direction of the cutting wire terminal in the connector 10 can be detected without contact.

In the circuit configuration described above, if X or Y is n in the X-axis sensor plate and the Y-axis sensor plate,

[1 / {(1 / Vn2)-(1 / Vn1)}] / Vn1

= {(Vn1 × Vn2) / (Vn1-Vn2)} 1 / Vn1

= (Vn2) / (Vn1-Vn2)

Is true.

In the third embodiment, although the X-axis sensor 30d and the Y-axis sensor 20d are located on the back surface side of the X-axis sensor 30c and the Y-axis sensor 20c as viewed from the so-called connector side, the connector ( 10 is formed of a non-conductive material, and since the X-axis sensors 30c and 30d and the Y-axis sensors 20c and 20d are both maintained at high impedance, the X-axis sensor 30d and the Y-axis sensor ( Although the detected value of the AC signal from the terminal at 20d is somewhat influenced by the X-axis sensor 30c and the Y-axis sensor 20c, the influence of the AC signal at the terminal is affected by the X-axis sensor 30c and the Y-axis sensor ( It is not blocked by 20c), and a certain level of value can be detected reliably.

As a result, the relative relationship between the detected values of the X-axis sensor 30c and the X-axis sensor 30d and the relative relationship between the detected values of the Y-axis sensor 20c and the Y-axis sensor 20d are determined only by the insertion position of the terminal. The insertion position of the terminal in the connector 10 can be detected almost accurately.

That is, the presence of the X-axis sensor 30c and the Y-axis sensor 20c does not prevent the AC signal from being detected from the X-axis sensor 30d and the Y-axis sensor 20d. ), Even if the detection levels of the X-axis sensor 30d and the Y-axis sensor 20d decrease slightly by the presence of the Y-axis sensor 20c, the value of a fixed level can be detected reliably.

This is the same even if the terminal inserted into the connector 10 is not the first terminal. If several terminals have already been mounted in the connector 10, this is determined by the position and the number of the mounted terminals. Even if there is a variation in the detection level, whether or not the terminal insertion position in each case is correct can be accurately identified.

That is, in the third embodiment, since the AC test signal is detected by using electrostatic coupling, the detection level of the test signal on the conductive plate becomes a value inversely proportional to the distance from each inserted terminal. Therefore, the reciprocal calculation values 1 / Vn1 and 1 / Vn2 are respectively proportional to the distance from the terminal.

Therefore, these differences {(1 / Vn1)-(1 / Vn2)} correspond to the distance (reference distance) between each X-axis sensor 30c, 30d and Y-axis sensor 20c, 20d. Therefore, [1 / {(1 / Vn1)-(1 / Vn2)}] / Vn1 represents the ratio of (1 / Vn1) to the reference distance, thereby absorbing the constant rate variation applied to the supply test signal. The result of this ratio is a quantity proportional to distance, and is suitable for using for a test | inspection.

As a result, the output of the X-axis division circuit 145 and the Y-axis division circuit 146 when the terminal is inserted can obtain a detection result unique to the distance to the terminal. The detection error of the distance from the sensor to the terminal in the third embodiment is very small, and the accuracy necessary for the determination of whether the terminal is inserted into the current connector can be securely ensured.

As described above, according to the third embodiment, the same effects as those of the above-described embodiments can be achieved, and the two sensors can be arranged in close proximity, thereby facilitating the arrangement of signal lines from the sensor and the like.

In addition, the simple configuration of arranging two sensor plates near the side surface of the connector housing enables detection of an AC test signal value proportional to the distance from the sensor plate to the terminal, and the X-axis division circuit when the terminal is inserted. 145, the output of the Y-axis division circuit 146 becomes a detection result inherent in the insertion position of the terminal, so that the insertion position of the cut wire terminal having a great influence on the reliability of the wire harness is completely non-contacted to the terminal. It becomes possible.

According to the present invention, it is possible to discriminate the mounting failure of the cutting wire terminals to various types of connector housings simply by replacing simple attachment members without designing and preparing a dedicated jig having a complicated configuration for each connector specification of the cutting wire ends. have.

In addition, the mounting position of the cut wire terminal in the connector and the connection state between the cut wire and the terminal can be detected in a non-contact manner in the manufacturing process of the harness without damaging the terminal of the cut wire end, and in the manufacturing process of the harness, Defective mounting of the cut wire terminal to the connector can be determined to provide a reliable harness without going through a special inspection process.

Claims (3)

It is a mounting inspection jig which uses the mounting inspection apparatus of the terminal which can inspect the mounting position in the connector housing of the terminal to which an AC signal was applied non-contactedly to a terminal, A holding part for holding and holding the connector housing; It has at least a pair of electrically conductive plates which are arrange | positioned opposing the position of the side surface vicinity of the said connector housing accommodated and held by the said holding part, and can detect the alternating current signal in the said terminal mounted in a connector housing, The mounting position of the terminal to which the AC signal is applied can be determined in the connector housing of the terminal to which the AC signal is applied from the AC signal detection result of each of the opposing conductive plates. Jig for mounting inspection. It is a mounting inspection jig used for the mounting inspection apparatus of the terminal which can test the mounting position in the connector housing of the terminal to which the test signal was applied, An attachment member that can accommodate the connector housing; A holding portion for storing and holding the attachment member; A mounting inspection jig having at least one pair of conductive plates arranged on a side surface of the holding portion. The method according to claim 2, wherein the test signal is an AC signal, the conductive plate is capable of detecting an AC signal at the terminal mounted in the connector housing, The attachment member is formed in accordance with the connector housing specification, Mounting inspection jig, characterized in that the holding portion is common regardless of the connector housing specifications.

Images