JPH0244474Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention consists of aligning multiple wires that are a mixture of shielded wires and discrete wires and cutting them at predetermined points.
The present invention relates to a wire processing device in which a common connector is attached to a cut end.

"Prior Art" Conventionally, a wire processing device has been used that cuts a plurality of wires in line and attaches a common connector to the cut ends. The present applicant has also proposed, for example, Japanese Patent Application Laid-Open No. 61-163581 as this type of wire processing device.
JP-A-62-135213, JP-A-62-168356, and JP-A-61-159157 have already been proposed.

These wire processing devices include, for example, a plurality of clamps that grip the wire in an openable and closable manner and are movable along the wire feeding direction, a cutting device that cuts the wire at a predetermined location, and a device that attaches to the end of the cut wire. It consists of a pressure welding machine that attaches a pressure welding connector, a clamp to pull out the wire to a predetermined length, a cutting device to cut the wire at a predetermined point, a clamp to move the wire, and a pressure welding machine to attach the pressure welding connector to the cut end of the wire. I am trying to install it.

Conventionally, the electric wires processed by these electric wire processing apparatuses have been, for example, a plurality of discrete wires arranged in a row, a flat cable, a ribbon cable, and the like. However, in recent years, shielded wires have begun to be used, and there is a demand for shielded wires and discrete wires that are aligned and have a common connector attached to their ends.

As shown in FIG. 11, the shield wire 1 has a core wire 2 covered with a sheath 3 made of insulating resin, a shield tape 4 made of metal foil wrapped around this sheath 3, and a shield tape 4 made of metal foil. It has a multi-layered structure in which a covering 5 made of insulating resin is placed around it. In this case, the number of core wires 2 is one or more, and in the case of multiple core wires, the covering 5
It is integrated into a ribbon cable shape.

FIG. 12 shows a mode in which this shielded wire 1 and a normal discrete wire 6 are aligned and a common pressure contact connector 7 is attached to their ends. The discrete wire 6 can be attached by simply pushing its cut end into a predetermined groove of the pressure connector 7. However, the diameter of the shielded wire 1 becomes thicker as it is covered with the shielding tape 4 and the covering 5, and each circuit is shorted by the shielding tape 4, so the shielding tape 4 and the covering 5 (hereinafter referred to as , shield coating)
must be peeled off and attached to the pressure connector 7 with only the core wire 2 and sheath 3 exposed.

However, when the shielded wire 1 and the discrete wire 6 are mixed and aligned, the shield coating can be stripped from only the end of the shielded wire 1 without damaging the discrete wire 6, and the connector can be directly attached to the end of the wire. A wire processing device with a structure that would allow the installation of a wire was not yet known.

"Problem to be solved by the invention" The invention was devised in view of the above-mentioned problems of the prior art, and its purpose is to arrange a plurality of electric wires, which are a mixture of shielded wires and discrete wires, into a predetermined line. It is an object of the present invention to provide a wire processing device which cuts the wire at a certain point, strips the shield coating only from the end of the wire, and attaches a common connector to the end of each wire.

"Means for Solving the Problem" In order to achieve the above object, the present invention aligns and feeds out shielded wires and discrete wires, cuts them at predetermined locations, and cuts the shielded portion of the shielded wire. In a wire processing device that strips a predetermined length from the end and attaches a common connector to the stripped end of the shielded wire and the cut end of the discrete wire, the wire is gripped so as to be openable and closable; Equipped with a plurality of clamps movable along the wire route, a wire cutting/stripping device, and a connector installation device,
The cutting/stripping device has a cutting blade and a stripping blade that are respectively attached to a pair of blocks that operate to sandwich the electric wire, and the cutting blade includes:
The strip blades are attached so as to be in sliding contact with each other by the operation of the pair of blocks, and the strip blades are attached so as to be close to each other by the operation of the pair of blocks, and the strip blades have a part that corrodes the shield coating of the shield wire. The present invention is characterized in that it is provided with a cutting blade portion that inserts the blade portion, and a notch portion that is formed so as to avoid the discrete wire.

"Operation" The electric wire is pulled out a predetermined length by being held and moved by the clamp. The cutting and stripping device operates in such a way that a pair of blocks sandwich the wire. At this time, the electric wire is cut by the cutting blade, and the stripping blade bites into the shield coating of the shielded wire. Note that since the discrete wire enters the notch of the stripping blade, it is not damaged by the stripping blade. In this state, the clamps holding both sides of the wire at the cutting/stripping position are moved apart, and the shield coating of the shield wire is held by the stripping blade and peeled off. and,
Movement of the clamp brings the ends of the wires to the operative position of the connector attachment device, which attaches the common connector.

"Embodiment" FIG. 1 shows a schematic configuration of a wire processing apparatus according to the present invention, in which a group of wires P is fed out from a wire reel 11 through an alignment guide (not shown), is connected to a front clamp 12, a center clamp 13, and a measuring device. The long clamp 14 regulates its feeding position. These clamps 12, 13, 14
are capable of gripping and releasing the wire group P, respectively, and can move forward and backward in the direction in which the wire group P is fed out.

In FIG. 2, these clamps 12, 13, 1
4 grips are shown. Since the shield wire 1 and the discrete wire 6 have different diameters, the gripping portions of the clamps 12, 13, and 14 have a presser blade 15 for holding the shield wire 1 and a presser blade 16 for holding the discrete wire 6. It is composed of a combination of
Each line is held securely.

A first pressure welding machine 17, a cutting/stripping device 18, and a second pressure welding machine 19 are arranged along the route of the wire group P in the order of the feeding direction of the wire group P. The pressure welding machines 17 and 19 each consist of an upper die 20 and a lower die 21 that are placed opposite each other so as to sandwich the wire group P therebetween. The upper die 20 and the lower die 21 are operated to sandwich the wire group P by a known drive mechanism as shown in the prior art described above.

As shown in FIG. 3, the pressure contact connector 7 is installed on the lower mold 21, and the pressure contact blade 22 is attached to the upper mold 20. The pressure contact blade 22 is composed of a plurality of blades inserted into respective grooves of the pressure contact connector 7. A U-contact 10 is provided in each groove of the pressure connector 7. The shielded wire 1 is stripped of its end shield coating, leaving only the core wire 2 and sheathing 3, and is pushed into a predetermined groove of the insulation displacement connector 6 by the pressure welding blade 22, and the U-contact 10 pierces the sheathing 3. It contacts the core wire 22 and is electrically connected. The discrete wire 6 consists of a core wire 8 and a sheath 9, and is pushed into a predetermined groove of the pressure connector 7 as it is.
Continuity is established in the same manner as above.

The cutting/stripping device 18 consists of blocks 23 and 24 placed opposite each other so as to sandwich the wire group P.
The blocks 23 and 24 operate to sandwich the wire group P.

To explain the upper block 23, the fourth
As shown in the figure, a guide rod 26 is attached to the frame 25,
26 is inserted through it, and a block 23 is fixed to its lower end. Further, an air cylinder 27 is installed on the frame 25, and its operating rod 28 extends below the frame 25 and is connected to the block 23. Therefore, the operation of the air cylinder 27 causes the block 23 to move up and down. A cutting/stripping blade 29 is attached to the block 23. Furthermore, air cylinders 32 and 33 are attached to the block 23 via left and right brackets 30 and 31, and the operation rods of the air cylinders 32 and 33 support both ends of a scrap removing plate 34. Therefore, by the operation of the air cylinders 32 and 33, the scrap removing plate 34 moves up and down further relative to the block 23. Note that the lower block 24 is constructed in substantially the same manner as described above, except that the dregs removing plate 34 is not provided, and moves up and down in the same manner.

FIG. 5 shows the structure of the cutting and stripping blade 29 attached to the blocks 23, 24. A cutting blade 35 is arranged in the center of each of the upper and lower blocks 23 and 24, and strip blades 37 are arranged on both sides of the cutting blade 35 with spacers 36 in between. The cutting blade 35, spacer 36, and strip blade 37 are fastened to the respective blocks 23 and 24 by bolts 38. Cutting blade 3 attached to upper and lower blocks 23, 24
5, the blade sides of the blocks 23 and 24 come into sliding contact with each other as they move up and down. Further, the strip blades 37 corresponding to the upper and lower blocks attached to the upper and lower blocks 23 and 24 are attached to the upper and lower blocks 23 and 24.
The lifting and lowering movements of the blades 3 and 24 cause their blade edges to approach or come into contact with each other. The scrap removing plate 34 is disposed between a cutting blade 35 attached to the upper block 23 and a stripping blade 37.

FIG. 6 shows the installed state of the upper and lower strip blades 37, and in this way, the upper and lower strip blades 37 have their cutting edges aligned with each other and a
Blade portion 37 that bites into the shield coating of the shield wire 1
a and a notch 37b for avoiding the discrete wire 6. FIG. 7 shows the shape of the upper strip blade 37 with the upper strip blade 37 taken out. The blade part 37a is formed into a saw blade shape that fits each line part of the shield wire 1, and the notch part 37b is a discrete part. The shape is such that the wire 6 does not touch.

Further, FIG. 8 shows the shape of the lower cutting blade 35 taken out, and the blade portion 35a is formed into a saw blade shape corresponding to each electric wire. Cutting blade 35
In order to cut both the shielded wire 1 and the discrete wire 6, it is formed over the entire part where the electric wire is arranged.

Next, the operation of this wire processing device will be explained.

In FIG. 1, a group of electric wires P is let out from a reel 11 through an alignment guide (not shown) and is held by a front clamp 12. In this state, the length measuring clamp 14 moves to the right in the figure, and the wire group P held by the front clamp 12
After the front clamp 12 is opened, the length measuring clamp 14 moves to the left in the figure to pull out the wire group P from the reel 11 to a desired length. When the length measuring clamp 14 stops, the front clamp 12 and the center clamp 19 grip the wire group P. In this state, the upper and lower blocks 23 and 24 of the cutting/stripping device 18 operate to sandwich the wire group P.

FIG. 9 schematically shows the state at this time. The shield wire 1 and the discrete wire 6 are held by the front clamp 12 and the center clamp 13, and a cutting/stripping device 18 is located at the center of them. A cutting blade 35 is arranged, and strip blades 37 are arranged on both sides of the cutting blade 35. Then, the cutting blade 35 comes into sliding contact to cut each of the electric wires 1 and 6, and the stripping blade 37 bites into the shield coating of the shield wire 1. At this time, discrete wire 6
enters the notch 37b of the strip blade 37 in the manner shown in FIGS. 6 and 7 and is not damaged.

In this state, as shown in FIG. 10, the front clamp 12 and the center clamp 13 move away from each other, and the shield coating of the shield wire 1 is held by the strip blade 37 and peeled off, and the end of the shield wire 1 is peeled off. The core wire 2 and the sheathing 3 are exposed. When the cutting and stripping operations are completed, the upper and lower blocks 23 and 24 are moved apart, and the peeled shield coating is removed by a scrap removal plate 34 operated by air cylinders 32 and 33 shown in FIG. removed by

Once the cutting and stripping work is completed,
The front clamp 12 moves the tip of the wire group P to the position of the first pressure welding machine 17, and the center clamp 1
Step 3 moves the tip of the wire group P to the position of the second pressure welding machine 19. Then, the first pressure welding machine 17 and the second pressure welding machine 18 attach the pressure welding connectors 7 to the ends of the respective wire groups P in the manner shown in FIG.

In this embodiment, two pressure welding machines are installed, but only one pressure welding machine may be installed so as to attach the connector only to either end of the cut electric wire, or As shown in No. 61-159157, three pressure welding machines may be installed so that the mounting direction of the connector can be selected at either end.

Furthermore, the strip blades 37 shown in FIG. The structure may be such that all the coating is stripped leaving only the core wire of the wire 6.

"Effects of the invention" As explained above, according to the invention, a group of electric wires in which shielded wires and discrete wires are mixed is aligned, the shield coating is peeled off only from the ends of the shielded wires, and the shielded wires and A common connector can be attached to the end of the discrete wire. Therefore, wiring work using shielded wires can be made extremely easy.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of the wire processing device according to the present invention, Fig. 2 is a partially enlarged view showing the structure of the gripping surface of the clamp used in the device, and Fig. 3 is the structure of the pressure welding machine used in the device. Fig. 4 is a partially enlarged view showing the mounting structure of the upper block in the cutting and stripping device used in the same device, and Fig. 5 shows the structure of the cutting and stripping blade in the cutting and stripping device. 6 is a partially enlarged sectional view showing the structure of the stripping blade in the same cutting and stripping device, FIG. 7 is a parts diagram showing the stripping blade in the same cutting and stripping device, and FIG. 8 is the same. A parts diagram showing the cutting blade of the cutting/stripping device,
Figures 9 and 10 are explanatory diagrams showing the cutting and stripping process using the same wire processing equipment, Figure 11 is a cross-sectional view showing an example of a shielded wire, and Figure 12 is common to the ends of shielded wires and discrete wires. FIG. 3 is a perspective view showing how the connector is attached. In the figure, 1 is a shielded wire, 2 is a core wire, 3 is a covered wire,
4 is a shielding tape, 5 is a coating, 6 is a discrete wire, 7 is an insulation displacement connector, 11 is an electric wire reel, 1
2 is the front clamp, 13 is the center clamp,
14 is a length measuring clamp, 17 is a first pressure welding machine, 18 is a cutting/stripping device, 19 is a second pressure welding machine, 2
3 and 24 are blocks, 35 is a cutting blade, 37 is a strip blade, 37a is a blade portion, and 37b is a notch portion.

Claims (1)

[Scope of utility model registration request] The shielded wire and discrete wire are aligned and fed out, cut at predetermined points, and the shielded covered portion of the shielded wire is stripped to a predetermined length from the cut end, and the stripped end of the shielded wire and the discrete wire are cut. At the cut end of the wire,
A wire processing device for attaching a common connector, comprising a plurality of clamps capable of opening and closing the wire and movable along the wire route, a wire cutting/stripping device, and a connector attaching device, The cutting/stripping device has a cutting blade and a stripping blade respectively attached to a pair of blocks that operate to sandwich the electric wire, and the cutting blades are attached so as to come into sliding contact with each other by the operation of the pair of blocks. The strip blades are mounted close to each other by the operation of the pair of blocks, and the strip blades include:
An electric wire processing device comprising: a blade portion that bites into the shield coating of the shield wire; and a notch portion formed so as to avoid the discrete wire.