JPS59127900A - Wiring head for automatic wiring device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiring head for automatic wiring placement used in manufacturing wire harnesses and the like.

As is well known, a wire harness is a combination of a large number of twisted electric wires, consisting of a main line and branch lines branching from the main line. Conventionally, manufacturing such wire harnesses required nine people to wire each wire one by one on a workbench, but now wires can be wired appropriately based on preset instructions.

Extremely efficient.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a wiring head for an automatic wiring device that wires electric wires at predetermined positions.

An embodiment of the invention will be described below with reference to nine drawings.

An automatic wiring device as shown in FIG. 1 is used to manufacture wire harnesses without unwiring. That is, after receiving a command from the memory section of the automatic control device (3), the wire reel case (2) placed in the reel station (1) and containing the wire reel (6) is held while holding the wire reel case (2) in which the wire reel (6) is stored. Wire with the wiring head A on the workbench (5).

This wiring head A attached to the head holder (7)
The pulse motor (8) moves the point (x, y=o) in the X-axis direction based on the command from the storage unit.

It is movable in the Y-axis direction by a pulse motor (9), and a simultaneous two-axis control system is used.

Then, this wiring head A first inserts the tip of the electric wire (4) into a metal fitting provided on the workbench (5), and then moves the electric wire (4) toward the reel station or toward the reel station according to instructions from the storage section. Draw in sliding contact in other directions.

This causes the wire (4) to be driven into the workbench (5) by the nail P.
Wrap it around and then cut it.

The wiring head A that operates in this manner and its surroundings will be described in detail below.

Figure 2 is a diagram showing the state during wiring, and the wire reel (6) stored in the wire reel case (2) has four wires (4
) is wrapped around the wire, and the wire (4
) is led out onto the workbench (5). αυ is a magnetic sensor that detects the metal piece Ul attached to the side surface of the wire reel (6).

Figure 3 is a plan view of wiring head A.
) to the metal fittings on the workbench (5), (I4 is the wire cutting cutter unit that cuts the wire (4) after wiring, 0!9
is the wire reel case holding part, and Qf9 is the seal.

FIG. 4 is a front view of the wiring head A, with the wire cutting cutter section α4 removed. αη is attached to the shaft S of the motor 0, N for sending out the electric wire (4), the wire sending roller, and the 0 barrel are moved down by air.
A pinch roller is directly connected to a single-acting piston member that returns by a spring and presses the wire (4) against the wire feed-out roller aη (21 is a wire feed-out roller (I?) and a pinch roller (1 frame) that presses the wire (4) against the wire feed-out roller aη. This is an electric wire guide for guiding the electric wire (4) to the electric wire lead-out nozzle Q1.

The electric wire lead-out nozzle is a double-acting piston that moves up and down with air. It is directly connected to 0. (C) is an electric wire reel case holding part (2) that holds the electric wire reel case (2) by vacuum suction, and when holding the electric wire reel case (2), Electric wire insertion taper guide (c) for guiding and piston Q
This is the main body of the wiring head A which is integrated with the 'Ja11 cylinder. (II is a seal attached to the wire reel case holding part 0!9 to maintain airtightness.

The mechanism described above is shown in a side view in FIG. 5, and in FIG. 6 is a cross-sectional view of the wiring head A, particularly regarding the main body (2).

FIG. 7 is a longitudinal sectional view of the wire cutting cutter part Q4.

c! 4) is an electric wire cutting cutter integrated with a single-acting piston operated by air and returned by a spring.

Note that the main body (goods) and wire reel case (2) described above do not move up and down like the wire lead-out nozzle a1. In addition, the wire reel case (2) is held in the wire reel case holding part 0!9 of the main body, the motor eel and piston member that send out the wire (4), the wire lead-out nozzle and piston C that lead out the wire (4). ! 11. and electric wire (
4) Each operation of the wire cutting cutter C14 for cutting.

Each is based on a command from the storage section of the automatic control device (3). Furthermore, the rotation of the wire reel (6) is monitored by the magnetic sensor I based on a command from the storage section of the automatic control device (3).

Next, the wiring operation of the wiring head A having the configuration described above will be explained.

When the wiring head A is not in operation, it is located at the reference point (x, y=
o) and 1 workbench (5) with this point as a reference.
The wiring head A is moved as appropriate by an X-axis pulse motor (81) and a Y-axis pulse motor (9), but these specifications are given from the memory section of the automatic control device (3). At the reference point, the wire feed roller aη is stopped, and the pinch roller ttS is raised.Furthermore, the wire lead-out nozzle OI is also raised, and the wire reel case (2) is held in place. Vacuum suction and wire cutting cutters are still not working.

On the other hand, the reel station C11K is installed as a set including an electric wire (4), an electric wire reel (6), and an electric wire reel case (2).

A predetermined length of electric wire (
4) is being played out.

In this state, the wiring head A moves from the reference point in the direction of its reel station (11) and stops at the commanded position of the wire reel case (2).

At this time, the wire reel case (2) is in a pushed-in state, and the wire reel case holding part 09 of the 2 main body (a)
The seal (le is between the wire reel case (2).

It is in a collapsed state. Also at this time, the wire reel case (
2) The electric wire (4) is drawn out to a predetermined length.

The wire is inserted deeper than the wire feed roller surface in the wiring head A by the wire insertion taper guide (c) of the main body.

After that, vacuum suction is performed and the wire reel case (2
) is held by six wire reel case holding parts and the main body (2)
Become one with.

As described above, the wire reel case (2) is held in the wire reel case holding part OS of the main body (a).

In this state, the wiring head A moves toward the center of the workbench (5) and advances to the commanded starting metal fitting position on the workbench (5). The wiring head A stops when the wire lead-out nozzle On is positioned above the metal fitting, and then the wire lead-out nozzle α is lowered to just above the metal fitting.

Next, the pinch roller 0~ descends and presses the electric wire (4) against the electric wire feed-out roller aη, and then the motor Q3 starts rotating. And then there is the wire feed roller (1?).

Rotate the electric wire (4) to the electric wire guide ■, electric wire lead-out nozzle α1
I will send it to. The electric wire (4) sent out from the electric wire lead-out nozzle a enters into the metal fitting.

When the electric wire (4) of a predetermined length is inserted, the motor rotation stops. The length of the electric wire (4) sent out is adjusted by the rotation time of the motor α moat.

Thereafter, the pinch roller α barrel rises, and the wiring head A moves on the second work table (5) to the next commanded end point position with the wire lead-out nozzle a [a] remaining in a lowered state. During this movement, the wiring head A moves in sliding contact with the electric wire (4) by means of the electric wire reel case holding part α, the electric wire guide wire, the electric wire lead-out nozzle (IQ, and the magnetic sensor Q'l). At this time, the wire lead-out nozzle is connected to the wire (4).
The robot is moving between the nails P on the workbench (5) according to instructions while guiding the robot.

Then, the wiring head A moves so as to wrap the electric wire (4) two to three times around the nail P, which is the end point of the wiring, according to a command from the storage section of the automatic control device (3), and then stops. At the same time, the wire cutting cutter ff14) of the wire cutting cutter section I operates to cut the wire (4). and.

When the lowered wire lead-out nozzle (11) rises at the highest level, the wiring head A will release the wire reel case (
2) Move the reel over the workbench (5) over the shortest distance to return it to its original position at the reel station (1).

Then, when the wire reel case (2) is above the original reel station (1), the vacuum suction is released.

Separate the wire reel case (2) and the wire reel case holding part (I9) of the main body (A), and return the wire reel case (2) to the reel station (1).

Thereafter, the wiring head A returns to its original state and returns to the reference point.

With the above steps, wiring of one electric wire is completed. During this wiring, the electric wire (4) is sent out, and when it is led out, the electric wire (9) and the wire reel (6) rotate. Then, the metal piece θ on the side passes in front of the magnetic sensor H, so the magnetic sensor (1
11 constantly senses changes in magnetic energy.

If the automatic control device (3) does not receive this change signal within a predetermined time, the automatic control device (3) determines whether the wire (4) on the wire reel (6) has run out.

Or, due to other abnormalities, the electric wire (4) is sent out and led out, and it is judged that the wiring is about to be interrupted, and the wiring is stopped midway.

After that, repeat the above operation as one cycle.

Wire each wire. Note that if the types of wires to be wired in the ninth order are the same, the wiring is performed by moving the wire reel case (2) by the shortest distance to the position of the metal fitting at the starting point of the ninth order without returning the wire reel case (2). I cut it. If you use "-brush writing" as another wiring method, stop cutting the wires one by one and move them continuously.

Connect the wires to the nails P on the workbench (5) while wiring.

In the embodiments described above, the piston Onυ using air, the electric wire cutting cutter Q4, and the motor 0 using electricity were used as the driving source for each part of the wiring head A, but these are not limited to these. Without.

(10) A plunger using electricity or a pulse motor using a gear may be used as the driving source for the piston QIQυ. Further, the motor 0 may be a rotating cylinder using air as a driving source. In particular, if a pulse motor is used to drive the piston (clI), the height of the wire lead-out nozzle 4 can be freely selected, so even a wire harness with a large number of wires can be wired.

However, the type of wire is determined by the number of wire reels (6) that can be installed at the reel station (1).

1, if you use a pulse motor for motor (13).

By controlling the wire feeding speed and the wiring moving speed of the wiring head A by the automatic control device (3), wiring can be performed without applying a tensile force to the wiring (4).

In the embodiment of this description, the wire reel case (2
), vacuum adsorption using air is used to hold the
There is also a method of making the wire reel case (2) magnetic and holding it by attracting it with a magnet.
There is also a method of mechanically grasping and holding (11).

In addition, in the embodiment described in this description, a magnetic sensor 0υ is used to detect the rotation of the electric wire reel (6), but the invention is not limited to this. It can also be detected with an air sensor or optical sensor.

As described above, this invention uses a wiring head that moves to a predetermined position by two-axis control operation of the Y-axis and the Y-axis drive shaft on two workbenches, and sequentially moves the wire reel case holding part, the wire insertion guide, and the wire from the front. Feeding roller, wire cutting cutter,
It has a wire guide and a wire lead-out nozzle, and the wire lead-out nozzle is raised and lowered by a drive source as appropriate to lead out the wire onto the workbench, and further,
The electric wire reel case holding part is provided with a sensor for confirming that the electric wire reel inside the case held by the electric wire reel case holding part has rotated nine times.

Therefore, when feeding the wires to the metal fittings on the second workbench, the electric wire lead-out nozzle can descend to just above the metal fittings to accurately position the electric wires (12) and perform an action that will not cause any trouble in inserting the wires. . and.

Since the electric wire is led out to '-1' when the electric wire lead-out nozzle is lowered, it can be reliably hooked onto the nail.

1, the sensor is used when sending the wire to the metal fittings on the workbench, and 2.
Since the rotation of the wire reel on which the wire is wound is checked when the wire is led out onto the workbench and routed, there is no risk of problems such as insufficient wiring due to insufficient wire or abnormalities.

[Brief explanation of drawings]

Figure 1 is a perspective view of the automatic wiring device, Figure 2 is a front view of the wiring during wiring, and Figure 3 is a plan view of the wiring head.
The figure is a front view of the wiring head with the wire cutting cutter removed, Figure 5 is a side view of the wiring head, Figure 6 is a cross-sectional view of the wiring head, and Figure 7 is a longitudinal cross-section of the wire cutting cutter. Figure, 8th
The figure is a front view of the electric wire reel case. In the figure, (1) is the reel station, (2) is the wire reel case, (3) is the automatic control device, (4) is the wire, and (5) is the wire reel case.
is a workbench, (6) is a wire reel, (7) is a head holding stand, +81. (91 (13) is a pulse motor, (11 is a wire lead-out nozzle, aυ is a magnetic sensor, Q side is a metal piece, 0 is a motor, θ is a wire cutting cutter part, a!9 is a wire reel case holding part, Q [9
is the seal, αη is the wire feed roll, (IS is the pinch roll, 09 is the piston, (2I is the wire guide, Qυ
is the piston, (F) is the main body, (C) is the wire insertion taper guide, and ff14 is the wire cutting cutter. Note that the same or corresponding parts in FIG. 9 are designated by the same reference numerals. Agent Makoto Kuzuno (14) Figure 3 Figure 4 Figure 5 I

Claims (2)

[Claims] (1) A wiring head that moves to a predetermined position on a workbench where predetermined wiring is performed by two-axis control operation of the Y-axis and the Y-axis drive shaft, and this wiring head is used to wrap electric wires. An electric wire reel case holding part that holds a certain electric wire reel, an electric wire insertion taper guide that inserts and guides the electric wire of the electric wire reel, an electric wire feeding mechanism that feeds out the electric wire inserted into this taper guide, and a wire that is sent out from this feeding mechanism. A wire lead-out nozzle and a wire cutting cutter are provided for leading the wire to the outside through a wire guide, and the wire lead-out nozzle is raised and lowered by a drive source to lead out the wire onto a workbench. A wiring head for an automatic wiring device featuring: (2) The wiring head of the automatic wiring apparatus according to claim (1), wherein the electric wire reel is configured to be able to detect whether or not it rotates.