JP2000133407A - Wire harness pressure welding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arbitrarily change the pitch of a plurality of wires by the pressure welding by forming a plurality of slits separated from one another on a plurality body to pass the wires, and freely selecting the pitch between the wires adjacent to one another. SOLUTION: A plurality of single wires 2 are arranged in parallel and passed through a guide body 3. The guide body 3 is composed of a thick blade body 12 turnable at least by 90 degrees around a shaft 11. The body 12 is provided with a plurality of slits 13. A width of these slits 13 is determined so that the wires 2 can be passed therethrough without resistance. A body 12 is rotated, and the wire 2 is passed near a tip end opening of the slit 13, is determined to be, for example, 2.0 mm, in a case when the wire pitch in the passing of the wire 2 through a basic part of the slit 13 is, for example, 1.5 mm. A top face of the body 12 of the guide body 3 is wider than its lower face, and the wire 2 is received by the slit 13 at a tail part wider than the lower face, of the wider top face when the body 12 is rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness crimping machine (including a crimping machine) that can arbitrarily select a pitch of a plurality of single-wire wires and crimp a conductive connector at its tip.

[0002]

2. Description of the Related Art To manufacture a wire harness by pressing a connector to the ends of a plurality of wires and inserting the connector into a hole in a housing is disclosed in, for example, Japanese Patent Publication No. 6-5678.
No. 7, as disclosed in Japanese Patent Publication No. In this known wire harness crimping machine, basically, the pitch of the connectors pressed against both ends of a plurality of wires, that is, the pitch of the plurality of holes of the housing at both ends of the wires are the same. In other words, a plurality of wires are arranged at equal intervals.

[0003] However, it is required to change the pitch of the connector at the tip of a plurality of wires and the pitch of the connector at the trailing end. In this case, the connectors with wires are inserted into the holes of the housing one by one by hand after the connectors are pressed against both ends of the wires, and the connectors are arranged with respect to the connector housing so as to match the pitch of the holes previously drilled in the connectors. Is made possible. This is a laborious operation and is not favorable in terms of cost.

Therefore, as disclosed in JP-A-60-151985 and JP-A-1-307185, means using a ribbon cable, that is, a close-contact ribbon, has been proposed. This means arranges a pitch conversion roller or plate before the operation of pressing the connector to the end of the wire, slits the ribbon cable by this roller or plate (blade), and simultaneously sets the pitch between the wires in the ribbon cable. To spread. The slit requires a triangular cross section and a ribbon cable cradle. In addition, a guide device that holds the ribbon cable from above and below with an appropriate force to maintain this diffusion pitch, and a diffused wire end A member that guides is essential.

[0005]

As described above, when changing the pitch of a connector pressed against both ends of a plurality of wires, it is necessary to use a ribbon cable. The supplement of the guide member complicates the apparatus and is not preferable in terms of cost. Attempts are made to arrange a plurality of pipes in parallel in order to change the pitch of a plurality of parallel single wires (wires), pass the wires through these pipes, and change the pitch of the wires by changing the pitch between the pipes. However, the pitch of the wire cannot be reduced by the dimension corresponding to the thickness of the adjacent pipe,
There are restrictions on pitch selection. Actually, there is a limitation in manufacturing and strength in reducing the wall thickness of the pipe.

Therefore, an object of the present invention is to solve the above-mentioned disadvantages of the prior art.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a basic pitch and an enlarged (or small) pitch.
Basically, a means for stretching a wire through a grooved guide body having a continuous pitch or a means using a guide body arranged in parallel along the wire is employed.

Specifically, the present invention has a guide body disposed upstream or downstream of an applicator for pressing (including crimping) a connector to ends of a plurality of single wires, The guide body has a plurality of spaced slits, the slit has a width dimension for passing a wire, and the pitch between one ends thereof is different from the pitch between the other ends, and the wire is passed through the slit of the guide body, Provided is a wire harness pressure welding machine characterized in that a pitch between adjacent wires can be freely selected. Preferably, the guide body is rotatable and the slit is opened on both the top surface of the main body and the wire running direction.

Further, the present invention has a guide body disposed upstream or downstream of an applicator for pressing (including crimping) a connector to ends of a plurality of single wires, and the guide body is provided. A wire harness having a plurality of spaced apart guide plates, a frame provided at a downstream portion of each guide plate, and a power source for pressing the frames in a direction of contacting each other, and a wire passing between the guide plates. Provide a crimping machine.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A wire harness pressure welding machine includes a wire clamper device 1 for holding a plurality of single wires 2 in parallel from a wire supply device (not shown), a guide body 3 for selecting a pitch between the wires 2, and a guide. The upper and lower applicators 4 and 5 for pressing and crimping the connector to the wire 2 having the pitch adjusted by the body 3, the comb teeth 6 between the guide body 3 and the left applicators 4 and 5, and the right Upper and lower applicators 7, 8 and a clamper 9 for grasping and advancing the wire 2. Left clamper 1 is shaft 1
It can move forward and backward along 0. Applicators 4, 5,
7 and 8 can use, for example, those disclosed in JP-A-60-117580 and JP-A-63-66877 and other known configurations.

FIG. 1 shows a state in which the tips of a plurality of wires 2 are pressed (including crimped) to a connector of a housing at a pitch of 1.5 mm using upper left and lower applicators 4 and 5. Is shown. When this pressing operation is completed, the upper and lower applicators 4 and 5 are separated from each other as shown in FIG. 2, and a clamper 9 located on the left presses the housing in which the connector is pressed against the tip of the wire 2. Grasp and pull out the wire 2 to the right while keeping the wire 2 taut. Before the wire 2 is pulled out to the right, the guide body 3 is rotated half a turn to increase the wire pitch from, for example, 1.5 to 2.5 mm.

As shown in FIG. 3, when the wire 2 is pulled rightward by the clamper 9 by a predetermined length, the right upper and lower applicators 7, 8 approach each other to cut the wire 2. Also, the rear end of the wire is pressed against the connector of the housing. At this time, the left clamper 1 moves rightward along the shaft 10. A wire harness having a 1.5 mm pitch connector arranged at the front end of the wire 2 and a 2.5 mm pitch connector arranged at the rear end of the wire is thus provided.

In the state of FIG. 3, the guide body 3 rotates to the original position, the pitch of the wire 2 is set to 1.5 mm, and the left clamper 1 moves to the left as shown in FIG. The wire 2 is returned to the left while being trimmed by the comb teeth 6. The distal end of the cut wire 2 is positioned between the upper left side and the lower applicators 4 and 5, and as shown in FIG.

FIGS. 5 and 6 show a guide body 3 for changing the pitch of the wire 2. FIG. The guide body 3 is composed of a thick blade-shaped main body 12 rotatable at least at an angle about a shaft 11 by 90 degrees. The main body 12 is provided with ten slits 13 in the illustrated example. The width of the slit 13 is set so as to allow the wire 2 to pass through without resistance. In the state shown in FIG. 5, the wire 2 passes through the base of the slit. The wire pitch at this time is, for example, 1.5 mm. When the main body 12 is rotated to the state shown in FIG. 6, the wire 2 passes near the opening at the tip of the slit 13.
And let This means that the pitch between each slit 13 is 1.5
The slits 13 are continuously formed in the main body 12 so as to be from 2.0 mm to 2.0 mm.

In the illustrated example, the guide is disposed upstream of the applicator, but the guide may be disposed downstream thereof.
In this case, the guide body is moved upward or downward while rotating, so that the movement of the right clamper 9 is not hindered.

The top surface of the main body 12 of the guide body 3 is wider than the lower surface in the state of FIG. 5, and the slit 13 is provided so as to be open to the left and right side surfaces and the top surface of the upper half of the main body 12. When rotated to the state shown in FIG. 6, the wire 2 is received by the tail slit 13 wider than the lower surface of the wide top surface. This allows the wire pitch to be changed on the same plane without changing the running surface of the wire.

FIG. 7 shows another example of the guide body 14 for changing the wire pitch. The guide body 14 includes a base plate 15, an upper plate 16 which is arranged to be opposed to and separates from the base plate 15 so as to secure a sufficient space for the wire to pass through, and a wire 2 on the upper plate 16. It has a sheet pile 17 slidable in the direction of movement and a piece means 18 for wire pitch conversion disposed downstream of the base plate 15.

As shown in FIGS. 8 and 9, a plurality of guide plates 19 aligned on the base plate 15 are provided.
The guide plate 19 includes flange portions 20 and 21 at front and rear ends thereof. The front flange portion 20 is
Each guide plate 1 is inserted into a slit 22 provided at the front of the
9 is determined, that is, the pitch on the upstream side in the moving direction of the wire 2 is determined. The wire 2 moves between the guide plates 19. The rear flange 21 on the downstream side is fixed to the top 23.

The frames 23 arranged side by side are configured so that the pitch can be changed from 2 mm to 1.5 mm, for example, by the cylinder 24. The top 23 may be moved using a link or a cam instead of the cylinder 24. Cylinder 24
Makes the top 23 approach by changing the length of the plunger, and changes the pitch of the rear flange 23. In the example shown in FIGS. 7 and 8, the pitch of the rear flange 23 is changed such that when the tops 23 are separated from each other and the pressing force by the cylinder 24 is not applied to the tops 23, the wires 2 are arranged at a pitch of 2.0 mm. However, when the cylinder 24 is operated to bring the pieces 23 into contact with each other, the pitch of the wire 2 is changed to 1.5 mm.

FIG. 7 shows that the pitch of the wire 2 is 1.5 at the downstream side.
In order to return the pitch to 2.00 mm, which is the same as that of the upstream side, the pressure on the cylinder 24 is released, and then the sheet pile 17 is advanced using a power source (not shown) so that each piece 23 The ends of the arrows are inserted in between, and the tops 23 are separated from each other at equal intervals to have a pitch of 2.00 mm. The guide plate 19 holding the top 23 is made of a metal plate, preferably a spring plate,
By providing elasticity, it is easy to return to the original position.

Although not particularly shown, if the pitch between the arrows of the sheet pile 17 is, for example, 3 mm on the left and right, and the pitch between the arrows is 2 mm, the pitch of the wire 2 is 2 mm.
And 3mm groups. This facilitates the crimping and crimping of the terminal when the hole pitch of the connector housing is made at an irregular pitch as described above. Of course, the row of the central portion of the wire 2 can be formed into a group having a pitch of 3 mm.

In the examples shown in FIGS. 10 to 14, a guide block 25 is used instead of the upper plate. Guide block 25
Is a main body 26 along the longitudinal direction of the wire 2 and a wire 2
The guide plate 19 is fixed to both sides of the main body 26, and the top 27 is located at the downstream portion in the feed direction of
The wire 2 travels between the opposing guide plates 19 (FIG. 14).
reference). A plurality of guide blocks 25 are arranged side by side, so that a required number of wires 2 can be supplied.

Each guide block 25 is provided with a pin 29 fixed to a stationary member (not shown) in a hole 28 provided at an upstream portion thereof.
12 (see FIG. 12), and individually swing around the pin 29. The cylinder 18 or the like shown in FIG. 7 can be used to apply a force in the direction of the arrow F from both sides of the frame 27 on the downstream side. As a result, as shown in FIG.
Is applied from the left and right sides of the group of the top portions 27, and when the top portions 27 are brought into contact, the wire pitch on the upstream side is, for example,
What was 2.00 mm can be converted to a 1.25 mm pitch.

On the upper part of the group of guide blocks 25, a sheet pile 30 which moves forward and backward by a power source (not shown) is arranged. The sheet pile 30 has a plurality of spaced arrow parts 31, the tip of which is
When the sheet pile 30 is moved forward and the tip of the arrow part 31 is made to enter between the top parts 27, the top parts 27 are separated from each other by an amount corresponding to the shape of the arrow part 31. Will fit. As a result, for example, wire 2
Pitch from 1.25mm to 1.50mm, 1.75mm,
2.00 mm can be arbitrarily selected. Of course, it is more preferable to use a sheet pile having arrow parts of different pitches according to the pitch, rather than selecting a plurality of pitches with one sheet pile 30.

When the top portions 27 are separated from each other by using the arrow portions 31, the guide plates 1 fixed to both sides of the main body portion 26 are formed.
9 also moves, so that the pitch of the wire 2 during that time can be automatically converted. As is clear from FIG. 11, the opposing guide plates 19 are both fixed to the main body 26 flush with the main body 26, so that when the tops 27 are brought into contact with each other as shown in FIG. There is no gap between the tops 27. In order to facilitate the movement of the arrow portion 31 of the sheet pile 30, it is preferable to provide tapered surfaces 32 on both sides on the upstream side of the top portion 27.

In the example shown in FIG. 10, by changing the pitch and shape between the arrow portions 31 of the sheet pile 30, for example, in FIG. With an interval, the pitch between the two right wires 2 may be set to 2.00 mm, and the pitch between the three left wires 2 may be set to 1.50 mm, and it is possible to widen the gap therebetween. This means that the individual guide blocks 25
9 can be individually swung, and the guide plates 19 can be opposed to each other, and the opposed guide plates 19 can be separated from each other.

In the example shown in FIG. 13, the arrow portions 31 'are extended without using a sheet pile, and the individual arrow portions 31' are connected to the individual power sources 33, thereby enabling each arrow portion 31 'to move independently. ing. This example is similar to the example of FIG.
Since the configuration is the same except that 1 'is independently movable, the description of the configuration is omitted. However, in this example, the shape of each arrow 31' is changed, and the arrow 31 'is inserted between the tops 27. The pitch of the wire 2 can be freely changed by changing the amount of separation between the top portions 27.

Although not particularly shown, the frame 27 may be divided at its center. The use of the guide plate 19 uses a spring plate or the like and can be made thin and rich in tension, so that the wire pitch can be reduced to 1.25 mm or less.

The example shown in FIG. 15 is an improved version of the example shown in FIG. 6, in which the ribbon cable 35 is made into a single wire 2, and each wire pitch in the ribbon cable 35 is different from the wire pitch when it is made into a single wire. The pitch can be changed. The guide body 3 ′ has a main body 12 that rotates around a shaft 11, the main body 12 has a plurality of slits 13, and a tip of a wall defining the plurality of slits 13 is a blade that cuts a ribbon cable 35. The pitch of the slit 13 is changed between FIG. 5 and FIG. 6. In the example of FIG. 15, when the slit 13 is half-turned to obtain the same state as FIG. Is changed from the pitch of the slit 13 in FIG.

The blade 37 at the end of the wall defining the slit 13
Cuts the ribbon cable 35 at a predetermined pitch, passes through the slit 13, and changes the pitch of the wire 2 as each single wire. When the main body 12 is rotated half a turn from the state shown in FIG. 15 (corresponding to the state shown in FIG. 5), the wire pitch can be further converted.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which a connector is pressed against a tip of a wire.

FIG. 2 is a front view showing a state in which a wire is advanced while changing a wire pitch.

FIG. 3 is a front view showing a state where a connector is pressed against a rear end of a wire.

FIG. 4 is a front view showing a state in which the wire is retracted.

FIG. 5 is a perspective view of a guide body for changing a wire pitch.

FIG. 6 is a perspective view of a guide body in which a wire pitch is expanded.

FIG. 7 is a perspective view showing a second embodiment of the wire pitch conversion means of the present invention.

FIG. 8 is an exploded perspective view of the example shown in FIG.

FIG. 9 is a perspective view showing a frame means.

FIG. 10 is a plan view showing a third embodiment of the present invention.

FIG. 11 is a front view of the example shown in FIG. 10;

FIG. 12 is a side view of the example shown in FIG.

FIG. 13 is a plan view showing a fourth embodiment of the present invention.

FIG. 14 is a perspective view showing a guide block.

FIG. 15 is a perspective view of a guide suitable for a ribbon cable in a modification of the example shown in FIG. 5;

[Explanation of symbols]

 1, 9 clamper 2 wire 3 guide body 4, 5, 7, 8 applicator 13 slit

Claims (8)

[Claims] 1. A guide body disposed upstream or downstream of an applicator for press-fitting (including crimping) a connector to the ends of a plurality of single-wire wires, wherein the plurality of spaced apart guide bodies are provided. A slit having a width dimension through which the wire passes, and a pitch between one ends thereof is different from a pitch between the other ends. The wire is passed through the slit of the guide body, and the pitch between adjacent wires is reduced. A wire harness pressure welding machine characterized by being selectable. 2. The wire harness press machine according to claim 1, wherein the guide body is rotatable, and the wire is passed through one end or the other end of the slit by rotating the guide body. . 3. The wire harness crimping machine according to claim 2, wherein the top surface of the guide body is wider than the lower surface, and the slits are opened to both surfaces in the wire running direction and the top surface. 4. A guide body disposed upstream or downstream of an applicator for press-contacting (including crimping) a connector to ends of a plurality of single wires, and the plurality of guide bodies are spaced apart from each other. A wire harness crimping machine comprising: a guide plate provided; a frame provided at a downstream portion of each guide plate; and a power source for pressing the frames in a direction of contact with each other, and a wire passing between the guide plates. 5. A guide body further comprising an upper plate for supporting the upstream side of the guide plate and fixing the pitch on the upstream side of the guide plate, and an arrow portion which moves along the upper plate and can enter between the frames. The wire harness crimping machine according to claim 4, comprising a sheet pile. 6. A guide body disposed upstream or downstream of an applicator for press-contacting (including crimping) a connector to ends of a plurality of single wires, and a plurality of the guide bodies are arranged in parallel. Guide block, a guide plate fixed to the side surface of the guide block, a top provided at a downstream portion of the guide block, and arrow means capable of entering between the tops. Wire harness crimping machine that can change the wire pitch by running and changing the pitch between the top sections. 7. The wire harness crimping machine according to claim 6, wherein the guide plate is fixed flush with both side surfaces of the guide block. 8. The wire harness crimping machine according to claim 7, further comprising an arrow means having an arrow portion for enabling the amount of separation between the top portions to be selectable.