JP3196676B2 - Method of manufacturing conductive circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for wiring a conductive circuit constituted by covered electric wires.

[0002]

2. Description of the Related Art Conventionally, various electric connection boxes such as a junction block (hereinafter, referred to as J / B), a fuse box, and a relay box for branch connection of a wire harness used in an electric circuit of an automobile have been proposed.

[0003] Such an electric junction box has a conductive circuit inside. This conductive circuit is composed of bus bars and covered electric wires. The bus bar is formed by stamping a single metal plate with a press. for that reason,
The formation of busbars requires extremely expensive dies and large-scale presses. In addition, there is a problem that many portions become unnecessary portions when the metal plate is punched out, and the material cost increases. Further, since the conductive surface of the bus bar is exposed, there is a possibility that a short circuit occurs between adjacent bus bars.

On the other hand, a conductive circuit composed of a covered electric wire is
As a solution to the above-mentioned problem of the bus bar, its utility value is high. The wiring pattern for embodying the circuit pattern of the conductive circuit becomes an unnecessary portion after one coated electric wire is continuously wired to a mold or a wiring plate using a dedicated wiring machine. It is formed by cutting and removing portions.

[0005]

By the way, a conductive circuit generally composed of a covered electric wire is wired in one step in order to obtain high mass productivity. Therefore, it is necessary to continuously wire the covered electric wire in a one-stroke form.

Conventionally, since the conductive circuit has a simple structure, the wiring pattern also has a simple structure. Therefore, at the time of designing the wiring pattern, the designer could easily come up with a one-stroke writing wiring pattern.

However, recently, a conductive circuit having a complicated configuration is required, and the wiring pattern also needs to have a complicated configuration. However, in order to obtain high mass productivity, it is necessary to design a wiring pattern capable of continuously arranging coated electric wires in a single-stroke form. As a result, when the circuit pattern becomes complicated, it becomes difficult to design the wiring pattern,
There is a problem that the design TAT (Turn Around Time) becomes long.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to easily design a wiring pattern in a conductive circuit composed of covered electric wires without impairing mass productivity. It is an object of the present invention to provide a method of wiring a conductive circuit.

[0009]

In order to achieve the above object, according to the first aspect of the present invention, a wiring machine is connected to a wiring mold.
In the manufacturing method of the conductive circuit for producing a Rishirube <br/> conductive circuit by the wiring machine to perform the wiring by supplying a single electric wire, the fabric
The wire mold has a plurality of wiring portions, and each wiring portion has a cloth.
Form a different wiring pattern for each line groove,
Connect one wire from the wiring machine to the wiring patterns.
Wires are supplied continuously, and each wire is connected to one cloth.
Is it more than a two-stroke form by transferring to a wire board?
The gist of the present invention is to manufacture a conductive circuit provided with such a wired electric wire .

[0010]

[0011]

[0012]

[0013]

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of the wiring machine of the present embodiment.

The wiring machine 1 includes a robot 2, an installation table 3,
Guide rail 4, Mold mounting table 5, Reel 6, Insulated wire 7
It is composed of The robot 2 is a two-axis robot, and includes a base 2a, a support shaft 2b, and a drive shaft 2c. The support shaft 2b is fixed on the upper part of the base 2a. A drive shaft 2c that can move in the horizontal and vertical directions is attached to the support shaft 2b. The robot 2 configured as described above is mounted and fixed on the mounting table 3. A press 41 is mounted and fixed on the mounting table 3.

A drive motor (not shown) is built in the support shaft 2b, and the drive shaft 2c is driven by the drive motor.
Are driven horizontally or vertically. A clamp mechanism 11 is fixed on a side surface of the drive shaft 2c, and a head rotation mechanism 12 is fixed below the clamp mechanism 11. A head 13 is rotatably connected to the lower surface of the head rotating mechanism 12.

A guide rail 4 is provided on the upper surface of the mounting table 3. The mold mounting table 5 includes a mounting portion 5a and a movable portion 5b, and the movable portion 5b is movably mounted on the guide rail 4. A wiring mold 14 is provided on the mold mounting table 5.

As shown in FIG. 6, the covered electric wire 7 is formed by covering a metal core wire 7a with an insulating coating 7b. Reel 6 on which one covered electric wire 7 is wound
Is rotatably attached to the base 2 a of the robot 2. The coated electric wire 7 is pulled out from the reel 6 above the robot 2, and the clamp mechanism 11 is
It is held in a state where it passes through the head rotating mechanism 12 and the head unit 13 in order and protrudes from the lower surface of the head unit 13.

In the wiring machine 1 configured as described above, the wiring operation of the insulated wire 7 is performed by the relative movement between the head portion 13 and the wiring mold 14. FIG. 2 shows a wiring mold 1
FIG. 4 is a plan view of FIG.

The wiring mold 14 includes a first wiring portion 21 and a second wiring portion 22. A first wiring groove 23 is formed in the first wiring portion 21, and a first wiring pattern 24 is formed by the wiring groove 23. Further, a second wiring groove 25 is formed in the second wiring portion 22, and the second wiring groove 25 forms a second wiring pattern 26. The wiring die 14 has a connection groove 27 connecting the first wiring pattern 24 and the second wiring pattern 26 and a plurality of square holes 28. These square holes 28 are provided in the respective wiring portions 21 and
2 are formed at predetermined positions on each of the wiring patterns 24 and 26.

Next, the wiring operation of the insulated wire 7 in this embodiment will be described with reference to FIG. First, the head section 13
Is moved to a first starting point P1 provided at the end of the first wiring section 21, and the wiring pattern 24 of the first wiring groove 23 is moved.
Move according to. Then, the head section 13 lays the first electric wire section 21 while arranging the covered electric wire 7 in the first electric wire groove 23.
Reaches the first end point P2 provided at the end of the
The wiring of the wiring section 21 is completed. In this manner, the first wired portion 21 is provided with the covered electric wire 7 and the first wired electric wire 34 described later.
(Not shown in FIG. 2).

Next, the head section 13 is moved from the first end point P2 to the second start point P3 provided in the second wiring section 22, and the covered wire 7 is wired in the connection groove 27. Next, the head unit 13 is moved from the second starting point P3 in accordance with the wiring pattern 26 of the second wiring groove 25. Then, the head section 13 lays the coated electric wire 7 in the second wiring groove 25 while arranging the second electric wire 7 in the second wiring section 22.
Reaching the end point P4, the wiring of the second wiring section 22 is completed. In this way, the second wired portion 22 is provided with the insulated wire 7.
Is wired as a second wired electric wire 35 (not shown in FIG. 2) described later.

By such a continuous wiring operation, each wiring of the wiring portions 21 and 22 is performed. That is, the wiring operation is performed in a one-stroke form. Next, the covered electric wire 7 reaching the second end point P4 is cut by a cutting machine groove (not shown) provided in the wiring machine 1.

Subsequently, an operation of transferring the wiring wires 34 and 35 from the wiring die 14 to the wiring plate 31 is performed. The transfer operation of each of the wired electric wires 34 and 35 will be described with reference to FIGS. FIG. 3 is a plan view of the wiring mold 14 showing a state where the wiring is completed. FIG. 4 shows each of the wired electric wires 34 and 3.
FIG. 9 is an explanatory diagram for explaining a transfer operation of No. 5; FIG.
In order to explain the transfer operation of the wiring wires 34 and 35, the wiring plate 31 is denoted by “31a” to “31c” for convenience. FIG. 5 is a plan view of the wiring board 31. The wiring board 31 is connected to each wiring portion 2 in the wiring mold 14.
A terminal block 32 is provided at a position corresponding to each of the square holes 28 of 1 and 22. At the center of each terminal block 32, a metal terminal 33 composed of a pair of left and right symmetrical pressure contact pieces 33a is disposed. FIG. 6 is an end view showing the pressed state of the insulated wire 7.

First, as shown in FIG. 4, a wiring board 31a is arranged at a position corresponding to the second wiring section 22 in the press machine 41, and a wiring board 31b is positioned at a position corresponding to the first wiring section 21.
Place.

Next, the wiring mold 14 is moved to the press 41 by moving the mold mounting table 5 along the guide rail 4 in the direction of arrow X shown in FIGS. Then, an unnecessary portion 34a of the first wired electric wire 34 indicated by a two-dot chain line in FIG. 3 and a second portion indicated by a one-dot chain line in FIG. 3 are formed by a cutting machine groove (not shown) provided in the press machine 41. The unnecessary portion 35a of the wired electric wire 35 is cut and removed as an unnecessary portion.

Subsequently, the wiring board 31 is pressed by the press machine 41.
The second wired electric wire 35 is pressure-fixed to each terminal 33 of FIG. 3A, and the first wired electric wire 34 is pressure-fixed to each terminal 33 of the wiring plate 31b. At this time, as shown in FIG.
5 constituting the coating core wire 7a of the wire 7 is engaging portion 33b of the electrically pin 33 in connected state against pressing member 33a
Is held squeezed.

Next, the wiring mold 14 is moved to the wiring machine 1 and the wiring operation of the coated electric wire 7 is performed on the wiring mold 14 again. In the meantime, as shown in FIG. 4, the wiring board 31 a is removed, and the wiring board 31 b is shifted in the direction of the arrow A, and is arranged at a position corresponding to the second wiring section 22. Further, the wiring board 31c, which has not yet been subjected to the transfer operation of the wiring wires 34 and 35, is shifted in the direction of arrow B and is arranged at a position corresponding to the first wiring section 21. Each of the wiring wires 34 and 35 wired to each of the wiring portions 21 and 22 of the wiring mold 14.
Are transferred to the respective wiring boards 31c and 31b. Then, the wiring board 3 to which the first wiring wires 34 have already been transferred.
The second wired electric wire 35 is transferred to 1b. At the same time, the first wiring wires 34 are transferred to the wiring plate 31c.

As a result, as shown in FIG.
The covered electric wire 7 as each of the wired electric wires 34 and 35 transferred to b corresponds to being wired in a two-stroke form.
Then, as shown in FIG. 4, the wiring board 31b is shifted in the direction of arrow C as a finished product, and the wiring board 31c is shifted in the direction of arrow A.

As described above, the wiring wires 34 and 35 are transferred to the wiring plate 31 while the wiring plate 31 is sequentially shifted. Then, as shown in FIG. 4, in the transfer operation of the last wiring board 31 that satisfies the planned production number, the wiring board 31a to which only the second wiring wire 35 is first transferred is shifted in the direction of arrow D. Then, it is arranged at a position corresponding to the first wiring section 21 and the first wiring wire 34 is transferred.

The following operations and effects can be obtained by the wiring method of the present embodiment for performing such wiring operation and transfer operation. The wiring machine 1 performs wiring in a single-stroke form on the wiring mold 14. Therefore, the production TAT can be maintained at the same level as before, and high mass productivity can be obtained.

As a result, the insulated wire 7 is wired on the wiring board 31 in a two-stroke form. Therefore, when designing a wiring pattern of a conductive circuit having a complicated configuration, the designer only has to design in a two-stroke form. Therefore, the designer can easily design the wiring pattern, and can prevent the design TAT from becoming long.

The above embodiments may be modified as described below, and the same operation and effect can be obtained in such a case. ◎ Each wired electric wire 34, 35 to the wired board 31 of the above embodiment.
In the transfer, first, the second wired electric wire 35 is transferred to the wiring plate 31a as shown in FIG. Then, the second wiring wire 3 to the last wiring plate 31 satisfying the planned production number
When performing the transfer of 5, the first wired electric wire 34 is transferred to the wiring board 31a. First, as shown in FIG.
The covered wire 7 is wired only to the first wiring portion 21 of the wiring mold 14, and the first wired wire 34 wired to the first wiring portion 21.
Is transferred to the wiring board 31a. Next, the wiring mold 14 again
The insulated wire 7 is wired to the first and second wiring portions 21 and 22. At the same time, the wiring board 31a is shifted in the direction of arrow F, and the wiring board 31b is shifted in the direction of arrow G. And
The second wired electric wires 35 wired to the second wiring portion 22 are transferred to the wiring plate 31a, and the first wired electric wires 34 are transferred to the wiring plate 31b. Subsequently, similarly to the transfer operation described in the above-described embodiment, the transfer of the wiring boards 31b and 31c is performed. Even in this case, the production TAT can be maintained at the same level as before, and high mass productivity can be obtained.

In the above embodiment, the wiring wires 34 and 35 are transferred by sequentially shifting the wiring plate 31. As shown by the arrow E in FIG. 4, the wiring board 31a in which only the second wiring wires 35 are transferred and the wiring board 31b in which only the first wiring wires 34 are transferred are replaced and arranged. Then, the wired electric wires 34, 35 which have not been transferred to the respective wiring plates 31a, 31b are respectively transferred.

In the above embodiment, the wiring mold 14 is
Although the covered electric wire 7 is wired, the wiring mold 14 is discarded, and the covered electric wire 7 is directly wired on the wiring plate 31. In the above embodiment, the first wiring portion 21 and the second wiring portion 22 are formed on the wiring mold 14, and as a result, the coated electric wire 7 is wired on the wiring plate 31 in a two-stroke form. ing.
A third wiring portion is provided in addition to the wiring portions 21 and 22 of the wiring mold 14, and wiring is performed in a three-stroke writing mode. In this manner, even when designing a wiring pattern of a conductive circuit, which is difficult with a two-stroke writing wiring pattern, the manufacturing TAT
In addition, it is possible to prevent the design TAT from becoming longer. It should be noted that a fourth wiring portion and a fifth wiring portion may be additionally provided in addition to the third wiring portion to realize a wiring pattern of four or more strokes.

The wiring mold 14 shown in FIG. 2 is replaced with the wiring mold 51 shown in FIG. The wiring mold 51 includes a wiring portion 52 formed by superposing the wiring patterns 24 and 26 of the wiring portions 21 and 22. First, the wiring of the first wiring pattern 24 is performed using the wiring mold 51. Then, the head unit 1 is moved to the first end points P2 to P4.
By moving No. 3, the second wiring pattern 26 is continuously wired. However, in this method, the coated electric wire 7
Are generated. In the current cutting mechanism, it is not possible to cut and remove the overlapped coated electric wires 7 while maintaining the same cutting speed as the conventional one. for that reason,
Wiring operation of the first wiring 34 and the wiring plate 3 of the same wiring 34
1 and the wiring operation of the second wiring 35 and the operation of transferring the same wiring 35 to the wiring board 31 must be performed in different steps. Therefore, in the above-described method using the wiring mold 51, the manufacturing TAT becomes long, and mass productivity is reduced. However, as long as the cutting mechanism can cut and remove the overlapped coated electric wires 7 while maintaining the same cutting speed as the conventional one, the above-described method may be used.

While the embodiments have been described above, technical ideas other than the claims that can be grasped from the embodiments will be described below together with their effects. (A) The method for manufacturing a conductive circuit according to claim 1 ,
A method of manufacturing a conductive circuit using a wiring mold in which a plurality of square holes are formed on each wiring pattern of each wiring portion.

(B) In the method of manufacturing a conductive circuit according to the above (a), a wiring plate having press-contact pieces at positions corresponding to the respective square holes is used, and each of the press-contact pieces is provided with the respective wire. A method for manufacturing a conductive circuit, wherein each wiring wire is transferred to the wiring board by pressing and fixing the wires.

According to the above (a) or (b),
Since the press-contact piece does not interfere with the wiring mold, the wiring wire transfer operation can be performed smoothly.

[0040]

According to the first aspect of the present invention, as described in detail above, in a conductive circuit constituted by a covered electric wire,
Wiring patterns can be easily designed without impairing mass productivity.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a wiring machine according to an embodiment.

FIG. 2 is a plan view of a wiring mold according to one embodiment.

FIG. 3 is a plan view of a wiring mold showing a completed wiring state according to the embodiment;

FIG. 4 is an explanatory diagram for explaining an operation of transferring the wired electric wires according to the embodiment;

FIG. 5 is a plan view of the wiring board according to the embodiment;

FIG. 6 is an end view showing a press-contact state of the covered electric wire according to the embodiment;

FIG. 7 is an explanatory diagram for explaining an operation of transferring a wired electric wire according to another embodiment.

FIG. 8 is a plan view of a wiring mold showing a completed wiring state according to another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Wiring machine, 7 ... Insulated wire, 14 ... Wiring die, 21 ... First wiring part, 22 ... Second wiring part, 24 ... First wiring pattern, 26 ... Second wiring pattern, 34 ... first wiring wire, 3
5: Second wired electric wire.

Claims (1)

(57) [Claims] 1. A method for producing a conductive circuit from wiring machine by supplying a wire to the wiring mold to produce a conductive circuit wiring by a row Ukoto, the wiring mold plurality of wiring portions Prepare and each wiring
Parts form different wiring patterns depending on the wiring grooves
Then , one wire from the wiring machine to the plurality of wiring patterns
By continually supplying and laying wires, and transferring each of the wires to one wiring board
Conductive with wired electric wires of more than two-stroke form
A method for manufacturing a conductive circuit for manufacturing a circuit.