JP3640150B2 - Layout examination method of continuity test unit, pseudo unit and layout examination table - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a layout examination method, a pseudo unit, and a layout examination table for a continuity test unit, and in particular, between wire harnesses and sub-assemblies (generically referred to as “wire assemblies” in this specification) in automobiles The present invention relates to a layout examination method for a continuity test unit suitable for an auto-lock type continuity test unit used for continuity tests between devices, a pseudo unit, and a layout examination table.
[0002]
[Prior art]
Generally, a wire assembly is an electrical wiring system that forms a predetermined circuit by combining a plurality of electric wires, and has a complicated wiring shape. The male or female terminal fittings connected to each electric wire are accommodated in a connector housing, and are prevented from coming off by a so-called lance type. And the electrical connection between both terminal metal fittings is achieved by connecting the connector housing which accommodated the male terminal metal fitting, and the connector housing which accommodated the female terminal metal fitting.
[0003]
Conventionally, a work table referred to as a wiring board has been adopted when performing the wire assembly wiring operation as described above or conducting a continuity test of a terminal fitting accommodated in a connector.
[0004]
FIG. 7 is a perspective view schematically showing a conventional wiring board.
[0005]
As shown in the figure, the known wiring board 2 supports a wiring board 15 with legs 15a. The wiring board 15 is a flat single board that is supported in a state where the operator side is inclined downward, and the wire assembly WH is configured to be routed on the upper surface thereof. Here, when conducting a continuity test of the connector 1 of the wire assembly WH, as shown in the figure, a continuity test unit 10 is provided on the wiring board 2 to inspect each circuit collectively or selectively.
[0006]
FIG. 8 is a perspective view showing an example in which the auto-lock type continuity test unit 10 (see Japanese Patent Laid-Open No. 10-239377) previously proposed by the present applicant is used for a conventional wiring board.
[0007]
In the configuration, a connector insertion / extraction section 11 for inserting the connector 1 to be inspected, a probe pin 12 attached in the connector insertion / extraction section 11, and the connector insertion / extraction section 11 by opening / closing the connector insertion / extraction section. The housing 14 is provided with a lock mechanism 13 that detachably locks the connector 1 inserted into the housing 11.
[0008]
The said housing | casing 14 is comprised in the substantially rectangular parallelepiped, and has the said connector insertion / extraction part 11 in the longitudinal direction one end surface. The housing 14 is opened so that the connector insertion / extraction portion 11 opens in parallel to the wiring board 15 for routing the wire assembly WH (in other words, the connector 1 is connected to the wiring board 15. So that it can be inserted and removed in a direction orthogonal to each other) and is buried in a predetermined position of the wiring board 15 and fixed by a metal fitting 16. A plurality of continuity inspection units 10 as described above are provided for each connector 1 employed in the wire assembly WH to be inspected.
[0009]
By the way, when the wiring board 2 as described above is manufactured as a continuity test drawing board, an actual wire assembly WH to be inspected is placed on a paper having the same dimensions as the wiring board 15, and the paper A pattern was pasted at a position corresponding to the connector 1 of the wire assembly WH.
[0010]
[Problems to be solved by the invention]
However, in the layout determination method described above, since the main body portion of the wire assembly WH and the mounting surface when the connector 1 is mounted have the same height, only the planar dimensions can be considered. For this reason, it is not possible to perform a precise layout examination that also three-dimensionally considers the insertion dimension of the connector into the continuity inspection unit, and it is often necessary to correct the layout even after the wiring board is completed. In that case, since it is necessary to embed the continuity test unit in the wiring board 15, it is necessary to re-perforate a new board material, which takes a lot of man-hours.
[0011]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a layout examination method for a continuity test unit and a pseudo unit capable of precisely positioning a continuity test unit embedded in a wiring board and facing a connector insertion / extraction opening. And providing a layout examination table.
[0012]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a layout of a continuity test unit when manufacturing a continuity test board using a continuity test unit embedded in a wiring board of a wire assembly and facing a connector insertion / extraction port. A pseudo unit that is used to determine the continuity test unit and has a pseudo plate formed corresponding to the outer surface of the continuity test unit, and corresponds to the connector insertion port of the continuity test unit with respect to the pseudo plate. And a temporary holding means for temporarily holding the connector in the insertion port by being locked to the back surface of the connector inserted in the insertion port, and mounted on the layout examination table. The pseudo unit is characterized in that a detachable mounting means is provided.
[0013]
According to the present invention, since the connector has the insertion slot into which the connector can be inserted, when examining the layout of the continuity test unit corresponding to the connector, the connector is used together with the predetermined layout examination table. It becomes possible to search the layout in consideration of the insertion dimension in three dimensions. In addition, since the insertion port is formed in a pseudo plate that is formed in a pseudo manner corresponding to the outer surface of the continuity test unit, by changing the angle and orientation of the pseudo plate, the continuity test unit can be made more practical. It is possible to search for a close layout state. Here, “pseudo” means that the outer shape and the outer dimensions are as similar as possible to the actual continuity test unit.
[0014]
In particular, the insertion port is preferably configured to be extendable and retractable so that connectors having different external dimensions can be inserted.
[0015]
In this way, it becomes possible to examine the layout of the continuity test unit related to a plurality of types of connectors using pseudo units having the same specifications.
[0016]
Moreover, it is preferable to further include a detachable needle that hangs down from the lower surface of the pseudo plate.
[0017]
If it does in this way, it will become possible to perform attachment or detachment work of a pseudo unit still more easily.
[0018]
Another aspect of the present invention is a layout examination table that is used in combination with the pseudo unit described above, and is a mounting layer that carries the actual wire assembly and that can indent the connector of the wire assembly by a pushing load. This is a layout examination table for a continuity test unit.
[0019]
In this invention, the arrangement of the connector is searched on the mounting layer, and is temporarily held by the pseudo unit in a state of being indented at an appropriate position on the mounting layer, thereby corresponding to each connector provided in the wire assembly. It becomes possible to search and plot the arrangement of the continuity test units.
[0020]
Another aspect of the present invention determines the layout of a continuity test unit when manufacturing a continuity test board using a continuity test unit embedded in a wiring board of a wire assembly and facing a connector insertion / extraction opening. A method for examining the layout of a continuity test unit for preparing a dummy unit as many as necessary for the wire assembly on the layout examination table, and mounting the actual wire assembly on the layout examination table. After that, by inserting the connector of the wire assembly into the pseudo unit, removing the pseudo unit from the wiring board, changing the arrangement, and mounting it again on the wiring board, it is suitable for the continuity test of the wire assembly. This is a layout examination method for searching a layout.
[0021]
In the present invention, the pseudo unit is prepared in the wire assembly on the above-described layout examination table, and the state when the connector is attached to the continuity test unit can be created by attaching the pseudo unit to the layout examination table. Become. In this state, after mounting the actual wire assembly, the connector of the wire assembly is inserted into the pseudo unit, the pseudo unit is removed from the wiring board, the arrangement is changed, and it is repeatedly mounted on the wiring board again. Therefore, in searching for the arrangement of the continuity test unit, the dimensions when the connector is inserted into and removed from the continuity test unit can be considered in three dimensions.
[0028]
FIG. 1 is a perspective view showing a simplified schematic configuration of a layout examination table 20 according to the present invention. With reference to the figure, the layout examination stand 20 according to the illustrated embodiment has a wiring board 22 as a main element, and the layout examination method according to the present invention includes the wiring board 22 and a pseudo unit. It is possible to implement suitably by using 40 together.
[0029]
The wiring board 22 integrally includes a support layer 31 formed of plywood, a hard layer 32 laminated on the upper surface of the support layer 31, and a placement layer 33 laminated on the upper surface of the hard layer 32. And a rectangular laminate in plan view having an area on which the actual wire assembly WH related to the continuity test unit to be examined for layout can be placed.
[0030]
The support layer 31 is formed of a laminated plywood that is detachably attached to a gantry (not shown).
[0031]
The hard layer 32 is made of a material that can pierce sharp objects such as pins and needles, and is specifically a single plate formed of rubber, rubber-like resin, or a relatively hard sponge. .
[0032]
The placement layer 33 is formed of a porous resin layer such as a sponge having a relatively high flexibility, so that the wire assembly WH can be formed without causing the placement surface 33a to be depressed depending on the weight of the wire assembly WH itself. In addition to being able to carry, the connector 1 is pushed in by a predetermined pushing load so that the mounting surface 33a is depressed and the connector 1 is pushed into the lower surface.
[0033]
FIG. 2 is a perspective view of the pseudo unit 40 according to the embodiment of FIG. FIG. 3 is an overview of the pseudo unit 40, (A) is a plan view and (B) is a bottom view.
[0034]
Referring to FIGS. 1, 2, and 3, pseudo unit 40 is integrally formed on main plate 41 that is formed to resemble the outer surface of continuity test unit 10 (see FIG. 8), and the upper surface of main plate 41. The sub-plate 42 gives a pseudo overview to the outer surface of the continuity test unit 10.
[0035]
Each of these plates 41 and 42 constitutes a pseudo plate in the illustrated embodiment. On the upper surface of the sub-plate 42, the model number 10a of the continuity test unit 10 which is a simulation target of the pseudo unit 40 is displayed, and thereby the type of the pseudo unit 40 is displayed corresponding to the continuity test unit 10. doing.
[0036]
A rubber ring 43 formed in a substantially rectangular frame shape is fixed to the central portion of the main plate 41. The inner peripheral surface of the rubber ring 43 constitutes an insertion port 43a for inserting the connector 1.
[0037]
As well shown in FIGS. 3A and 3B, the insertion port 43a is formed in a rectangular shape in plan view corresponding to the outer shape of the connector 1, and the corners 43b having an arcuate cross section are formed at the four corners. ing. And the insertion part 43a is comprised by this punching part 43b so that expansion and contraction is possible in combination with the rubber ring 43 itself being formed with the rubber material. As a result, even when the external dimensions of the connector 1 inserted into the insertion port 43a are different, the dimensional difference can be absorbed and versatile, and the connector 1 can be tightened and temporarily held.
[0038]
Further, a lip 44 is provided on the upper surface of the rubber ring 43. The lip 44 has a free end slightly facing the insertion port 43a, and can thereby be locked to the back surface of the connector 1 inserted into the insertion port 43a.
[0039]
Needles 45 as attachment members are fixed to the four corners of the lower surface of the main plate 41, and sharpened portions 45a are suspended downward from each other.
[0040]
The needle 45 has a length and thickness necessary and sufficient to penetrate the placement layer 33 of the wiring board 22 described above from the upper surface to the lower surface and be stuck to the hard layer 32. Accordingly, the pseudo units 40 can be freely rearranged on the placement layer 33 of the wiring board 22 described above, and the arrangement of the continuity test units can be searched.
[0041]
Next, a layout determination procedure using the layout examination table 20 and the pseudo unit 40 described above will be described.
[0042]
FIG. 4 is a schematic cross-sectional view showing a procedure for inserting a connector using a layout examination table and a pseudo unit.
[0043]
First, referring to FIG. 1 and FIG. 4, as many pseudo units 40 as necessary for the actual wire assembly WH to be studied are prepared on the layout examination table 20 described above, and the pseudo units 40 are roughly placed. Place on layer 33. This operation can be easily performed only by piercing the wiring board 22 with the needle 45 of the pseudo unit 40 (see FIG. 4A).
[0044]
Next, an actual wire assembly WH is prepared and placed on the placement layer 33 of the wiring board 22. Then, each connector 1 of the wire assembly WH is inserted into the insertion opening 43a of the corresponding pseudo unit 40.
[0045]
Referring to FIGS. 4B and 4C, in this process, the connector 1 is simply grasped and brought close to the insertion port 43a, and the connector 1 is simply pushed into the insertion port 43a as in the continuity test. . As a result, first, as shown in FIG. 4 (B), when the connector 1 pushes the lip 44, the lip 44 bends and allows the connector 1 to be introduced into the insertion port 43a. 4 (C), the lip 44 is restored to its original shape, so that it is locked to the back surface portion of the connector 1 and temporarily holds the connector 1. As a result, the connector 1 is temporarily held by the pseudo unit 40 in a state where the tip portion is depressed in the placement layer 33.
[0046]
Referring to FIG. 1, after the operator has finished inserting each connector 1 into the corresponding pseudo unit 40, the operator examines (searches) whether or not each pseudo unit 40 is arranged. The work is performed by removing the pseudo unit 40 from the wiring board 22 while the connector 1 is temporarily held by the pseudo unit 40, changing the arrangement, and mounting the pseudo unit 40 on the wiring board 22 again. Then, by repeating such a search, a layout suitable for the continuity test of the wire assembly WH is determined.
[0047]
FIG. 5 is a schematic view showing a wiring original drawing creation process after the layout examination according to the embodiment of FIG.
[0048]
With reference to the figure, when the layout of the continuity test unit is determined, first, the wire assembly WH is removed while the pseudo unit 40 remains on the wiring board 22. Next, a transparent acrylic plate 50 is placed on the upper surface of the mounting layer 33 on which the pseudo unit 40 is mounted. Next, as shown in FIG. 5B, points necessary for reading the coordinates are plotted from above the acrylic plate 50, and a diagram 50a is obtained as shown in FIG. 5C. Then, the plotted acrylic plate 50 or an original copy of the acrylic plate 50 becomes a wiring original drawing.
[0049]
As described above, according to the above-described embodiment, the continuity inspection unit is configured by supporting the wire assembly WH on the mounting layer 33 and further inserting the connector 1 of the wire assembly WH into the mounting surface 33a. Since the arrangement of 10 is searched, the dimensions when the connector 1 is inserted into and removed from the continuity test unit 10 can be considered three-dimensionally.
[0050]
Moreover, in the embodiment shown in the figure, by using the pseudo unit 40 together, the connector with a fixed arrangement is temporarily held, so that a state closer to the actual inspection unit mounting state is created and a precise search is performed. It becomes possible.
[0051]
5 includes a procedure for removing the wire assembly WH while the pseudo unit 40 whose arrangement is determined by the search process is left on the mounting layer 33, and then plotting the pseudo unit 40. Therefore, it becomes possible to easily create an original drawing by plotting the pseudo unit.
[0052]
Therefore, according to the present embodiment, the continuity test unit 10 (see FIG. 8) of the type embedded in the wiring board and facing the connector insertion / extraction opening can be precisely positioned, and the degree of completion of the wiring board is extremely high. It has the remarkable effect of becoming.
[0053]
The above-described embodiments are merely preferred specific examples of the present invention, and the present invention is not limited to the above-described embodiments.
[0054]
For example, it is possible to adopt the layout examination table 20 shown in FIG. 6 corresponding to the wiring board having the same outer shape.
[0055]
FIG. 6 is a perspective view showing a simplified configuration of a layout examination table 20 according to another embodiment of the present invention.
[0056]
Referring to FIG. 6, the layout examination table 20 shown in FIG. 6 has a wiring board 22 composed of a plurality of boards 21. Of these boards 21, the ones constituting both ends of the wiring board 22 in the width direction are each inclined via a predetermined angle by being connected via an inclined connecting plate 26.
[0057]
The layout examination table 20 in FIG. 6 is configured to correspond to the wiring table that sets the work area of the worker as narrow as possible by changing the inclination of the individual boards 21 in accordance with the shape of the wire assembly WH. It has been done. If this type of wiring board is used, the operator can perform a predetermined work within a small work area, so that workability is improved. Therefore, by changing the inclination of each board 21 corresponding to this wiring board, the layout can be examined in conformity with the actual wiring board.
[0058]
Or as a wiring board which mounts the wire assembly WH, you may employ | adopt the board | plate material which has a hanger as disclosed by Unexamined-Japanese-Patent No. 10-54861 which the present applicant has proposed previously. Even in such a case, it is possible to examine the layout by arranging the connector 1 lower than the main body portion (electric wire portion) of the wire assembly WH. In that case, it is possible to set the needle 45 short or omit the pseudo unit or use other means (for example, a magnet). The attachment member may be a screw screw.
[0059]
Further, the method for producing the wiring original drawing described with reference to FIG. 5 is merely an example, and is not essential. For example, a coordinate reader is provided, the coordinates of each pseudo unit 40 determined to be arranged are read to create digital data, and the digital data is input directly to the processing device, or the actual size paper is based on the digital data. It is possible to adopt a method such as printing out and making a base paper for manual processing.
[0060]
It goes without saying that various modifications can be made within the scope of the claims of the present invention.
[0061]
【The invention's effect】
As described above, according to the present invention, the dimensions when the connector is inserted into and removed from the continuity test unit can be considered in three dimensions, so the insertion dimension of the connector into the continuity test unit is also three dimensional. It is possible to conduct a detailed layout study considering the above. Therefore, it is possible to precisely position a continuity inspection unit of a type embedded in the wiring board and facing the connector insertion / extraction opening, and there is a remarkable effect that the completeness of the wiring board becomes extremely high.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a simplified schematic configuration of a layout examination table according to the present invention.
FIG. 2 is a perspective view of a pseudo unit according to the embodiment of FIG.
FIG. 3 is a schematic view of a pseudo unit (A) is a plan view (B) is a bottom view;
FIG. 4 is a schematic cross-sectional view showing a procedure for inserting a connector using a layout examination table and a pseudo unit.
5 is a schematic diagram showing a wiring original drawing creation process after layout examination according to the embodiment of FIG. 1;
FIG. 6 is a perspective view showing a simplified configuration of a layout examination table according to another embodiment of the present invention.
FIG. 7 is a perspective view schematically showing a conventional wiring board.
FIG. 8 is a perspective view showing an example in which the auto-locking continuity test unit previously proposed by the applicant is used for a conventional wiring board.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connector 10 Continuity inspection unit 20 Layout examination stand 21 Board 22 Wiring board 32 Hard layer 33 Mounting layer 33a Mounting surface 40 Pseudo unit 41 Main plate (pseudo plate)
42 Sub-plate
43 Rubber ring 45 Needle (Mounting member)
WH wire assembly

Claims (3)

A pseudo unit used to determine the layout of a continuity test unit when manufacturing a continuity test board using a continuity test unit embedded in a wiring board of a wire assembly and facing a connector insertion / extraction port. ,
A pseudo plate formed in a pseudo manner corresponding to the outer surface of the continuity test unit; an insertion port formed to correspond to the connector insertion / extraction port of the continuity test unit with respect to the pseudo plate; And a temporary holding means for temporarily holding the connector in the insertion slot by locking to the back surface of the connector inserted in the insertion slot, and providing a mounting means that can be mounted and removed on the layout examination table. Pseudo unit. A layout examination table used in combination with the pseudo unit according to claim 1,
A layout examination table for a continuity test unit, characterized in that it has a mounting layer that supports an actual wire assembly and that can be pushed in by a push load on a connector of the wire assembly. Layout examination of the continuity test unit for determining the layout of the continuity test unit when manufacturing the continuity test board using the continuity test unit embedded in the wiring board of the wire assembly and facing the connector insertion / extraction opening A method,
The pseudo unit according to claim 1 is prepared on the layout examination table according to claim 2 by an amount necessary for the wire assembly,
After mounting the actual wire assembly on the layout examination table, the connector of the wire assembly is inserted into the pseudo unit,
A layout examination method characterized by searching for a layout suitable for continuity inspection of a wire assembly by repeatedly removing a pseudo unit from a wiring board, changing the arrangement, and mounting the pseudo unit again on the wiring board.

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