JPH0580767B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a method for forming a wire harness to be installed in an automobile or the like, and a wire harness forming apparatus for the method.

``Prior art'' and ``Problems to be solved by the invention'' In general, a large number of wires are bundled together, and a large number of accessory parts such as terminals, grommets, clamps, etc. are attached to the wires, and the wires are shaped into the desired wiring route. To form the wire harness to be assembled, cut the wires one by one to length, crimp the terminals, and place the wires one by one on a jig on the wiring diagram board to form the desired wiring shape. A molding and assembly method is used in which the parts are molded and bound by taping or the like.

Therefore, according to the above-described conventional forming method, there are chronic drawbacks such as a large number of man-hours required for wiring forming, a long forming takt time for the wire harness, and low forming productivity. Wires laid out on the drawing board may partially sag, and groups of wires are rolled up and bundled, so wire harnesses installed in car doors, for example, require a considerable amount of wiring. There are disadvantages such as requiring installation space and poor installation workability.

It is an object of the present invention to provide a new molding method and a molding apparatus for the molding method that solves the above-mentioned conventional difficulties.

``Means for Solving the Problems'' The present invention solves the above-mentioned technical problems by ``feeding a group of electric wires in a flat horizontal row onto the wiring table 2 with a flat top surface by the wiring head 3. , the wiring table 2 and the wiring head 3 are moved relative to each other in the X-axis and Y-axis directions on the upper surface of the wiring table 2, and the wiring head 3 is rotated at an arbitrary angle about a line perpendicular to the wiring table 2. By giving a swinging action, the wire group is laid flat in a horizontal row on the wiring table 2 in a biaxially freely flexible shape, and at the same time as the wiring is formed, the wires are bonded together and formed. ``Wiring harness forming method'' and ``A wiring table 2 having a Y-axis operating mechanism in the Y-axis direction of a flat top surface, and a wiring table 2 suspended above the wiring table 2, It consists of a combination of an operating mechanism and a wiring head 3 having a swinging mechanism that can rotate at any angle about a line perpendicular to the flat top surface, into which wires are pushed in a horizontal line in a flat shape. Leading roller 20 to guide
and an index roller 2 following the leading roller 20.
1, and a forming apparatus for forming the wire harness having a structure of forming the wire group on the wiring table 2 in a horizontal line and flat shape in a biaxially freely flexible shape. There is.

In the above-described forming apparatus, the index roller 21 may be used as a heating roller, and the wiring head 3 may be provided with an adhesive liquid syringe and an ultraviolet irradiator in order to bond the wires at the same time as forming the wires. .

"Examples" and "Operations" Hereinafter, the configuration and operations of the present invention will be explained in detail based on Examples. First, with reference to FIG. 1 showing the layout of an embodiment applied to the molding of a wire harness for an automobile door, the main parts of the wire harness wiring molding are shown in the Y-axis direction (the flat upper surface of the wiring table 2). A wiring table 2 having a flat top surface and a moving mechanism in the Y-axis direction of the flat top surface of the wiring table 2 is fixed, and above the wiring table 2 there is a A wiring head 3 having an axis operating mechanism and a swinging mechanism capable of rotating forward or backward at any angle about a perpendicular to the top surface of the wiring table 2 is suspended, and the wiring table 2 and the wiring head 3 are are combined to form an XY table. And in front of the wiring table 2,
Supply section 4 that holds and sequentially supplies various electric wires
A wire gripping section 5 having a swinging mechanism and a cutting machine 6 are arranged in series, and a wire gripping section 5 for the A end (one end of the processed wire is referred to as the A end) is installed in parallel with the wire gripping section 5.
A terminal crimping machine 7 is arranged.

On the other hand, at the rear of the wiring table 2, there is provided a wire pull-out mechanism 8 that clamps and pulls out a group of wires in a flat manner along the traverse course of the wiring head 3; ,
A stripping machine 9 for the B end (the wire end opposite to the A end is referred to as the B end) of a group of wired wires, a terminal crimping machine 7, a connector housing inserting machine 11, a terminal supplying machine 12, etc. A group of processing machines necessary for processing the B end of the wire harness are arranged.

Then, using a molding apparatus having the XY table configured as described above as a main part, wiring molding of a wire harness is performed by the following method.

The processing procedure will be explained below.

●First, from the wire supply section 4, only the wire group 1 that is inserted into the common connector housing and has the same wiring shape is selected as one group, and the wire groups are pulled out one by one. It is clamped by the grip part 5. Then, the direction is changed by the swinging mechanism of the wire gripping part 5, and the terminal crimping machine 7 installed in parallel crimps the terminal on the A end side. It is held facing 2.

-Next, move the wire pull-out mechanism 8 forward to receive the wire group 1 from the wire grip part 5 and move it back, and set the A end of the wire group 1 to the set point 13 near the rear edge of the wiring table 2. , the wire group 1 to be wired is arranged in a flat horizontal line on the wiring table 2, and at the same time the length adjustment roller 14 near the cutting machine 6 is raised to adjust the length, and at the same time, the wires are cut all at once by the cutting machine 6. Cut the wire group 1 to a predetermined length.

●Next, as shown in Fig. 1C, operate the wiring head 3 to hold down the flat wire group 1 at the set point 13, and operate it in the _X1 direction shown in the figure to guide the wires together by the wiring head 3. are glued and formed into a flat shape arranged horizontally on the wiring table 2. Next, the swing mechanism of the wiring head 3, the Y axis of the wiring table 2, and the wiring head 3.
By combining the X-axis operations _of
The wiring head 3 is moved to Y by the Y-axis operation shown in _Y1 .
Move it in the axial direction, make the wire group 1 straight, and wire it in the Y-axis direction. Subsequently, similarly illustrated
A wire harness for a door in a U-shape with two curved parts in the middle by making one group of electric wires into a flat shape in a row horizontally by performing the curved wiring of R _{2 and} the wiring in the X-axis direction of X 2 shown in the figure. Automatically mold.

●And finally, the wiring table 2 is illustrated Y ₂ Y ₃ ...
The Y-axis is sequentially operated as shown in FIG.
The wire harness is completed by crimping the end terminals and inserting the connector housing.

The wires are bonded to each other during the above-mentioned wiring forming process: ・Use a heat-fused wire and bond the wires at the same time with the heating roller of the wiring head 3 ・Insert an adhesive syringe into the wiring head 3 and an ultraviolet irradiator, and glue the wires together using an adhesive, or attach double-sided tape to the wiring table 2 in advance.
This can be done by any means such as mutual adhesion via tape.

According to the wire harness forming method of the present invention described above, each group of electric wires having a common wiring shape is wire-molded at once, and the wire groups are formed into a flat wire arranged in a horizontal row. Therefore, each wire group having the above requirements is grouped and formed in a biaxial wiring position freely, and furthermore, at any point of the biaxial wiring position, the wiring head 3 By operating the oscillation mechanism at any angle and in any direction, it is possible to perform extremely small bending with a small bending radius and sharply aligned bends in the middle of wire forming, as shown in Fig. 3. By assembling them, it becomes possible to mold all wire harnesses consisting of complex and diverse wiring routes, which greatly improves the workability of wire harness wiring molding and shortens the processing tact time.

In addition, in the wire harness produced by the molding method of the present invention, the wires are bonded together in a flat shape, so the molding posture is physically stable, and there is no sagging or unraveling of the intermediate wires, improving molding quality. In addition, since the electric wire group is plate-shaped, for example, a wire harness for a car door, where installation space is strictly limited, can be installed in a single touch along the door plate, which saves space and saves space for wiring harness installation. Work efficiency can be improved.

In addition, in the above-mentioned flat wiring method of the present invention, instead of flat wiring over the entire length of the wire harness, conventional binding wiring is performed at necessary locations such as the grommet attachment part, and the flat wiring is formed. It may be mixed with.

Next, a molding apparatus for the above molding method will be explained. Referring to FIG. 2 showing an embodiment thereof, the wiring table 2 of this molding apparatus is placed on a pair of guide rails 17A17B, and is provided with a feed rod 16A on the back surface, and the feed rod 16A rotates. A Y-axis operating mechanism is provided which slides on the guide rail 17A17B and operates in the Y-axis direction. A feed rod 16B is installed above the middle of the wiring table 2, and is installed as a bridge across the wiring table 2, and a head body 18 on which the wiring head 3 is suspended is attached to the feed rod 16B.

The head main body 18 has an X-axis operating mechanism that operates in the X-axis direction with respect to the wiring table 2 by rotation of the feed rod 16B, and an X-axis operating mechanism that operates the wiring head 3 in the X-axis direction with respect to the wiring table 2. A swinging mechanism 19 for the wiring head 3 is provided which rotates the wiring head 3 forward and backward at any angle. The wiring head 3 suspended from the head body 18 consists of a leading roller 20 provided below the main shaft and a plurality of index rollers 21A21B connected to the leading roller 20. The index roller 21A21B is
It has a guide groove 22 on the outer periphery for guiding the wire, and it rolls while elastically holding down the wire on the wiring table 2 by the Y-axis operation of the wiring table 2 or the X-axis operation of the head body 18, and guides the wire. The index roller 21A21B is configured to follow the rolling locus of the roller 20.

A guide portion 23 is provided above the front of the leading roller 20 to receive the electric wire group 1 laid out in a flat shape from the rear, and to guide the group of wires 1 in a horizontal line and toward the front of the leading roller 20. The Y-axis operating mechanism and the swinging mechanism are incorporated with an automatic control circuit that operates them in accordance with a predetermined wiring shape.

The forming apparatus consisting of the wiring table 2 and the wiring head 3 configured as described above receives the wire group 1 from a separately provided wire supply mechanism at the starting position of the wiring head 3, and the leading roller 20 and the index roller 21
The three rollers A21B move the wire group 1 while pressing it against the wiring table 2, and
The wiring head 3 guides the wires 1 arranged horizontally on the wiring table 2 while holding down the group of wires 1 arranged horizontally on the wiring table 2 by axis, Y-axis operation, or a combination of X-axis, Y-axis operation, and swinging operation of the wiring head 3. Then, the wiring table 2 is moved in two axes and the direction is changed at an arbitrary angle and a radius of curvature, and a group of electric wires is automatically formed into a flat shape of a desired shape on the wiring table 2.

According to the forming apparatus configured as described above, the flat wiring forming of the two-dimensional wire harness is automated, and the wiring forming of the electric wire group is performed by a plurality of rollers rolling on the same trajectory, so that the flat wiring forming is possible. There is an operation that allows the wires to be placed in a uniform position, resulting in good molding quality. Also, for example, the last index roller 2
If 1 is a heated roller, the above-mentioned line-to-line fusion can be made simple and accurate.

"Effects of the Invention" As described above, the wire harness molding method and the molding device for the wire harness molding method of the present invention improve the wire harness molding productivity and molding quality, and save space for wire harness installation. This has many effects such as improving installation workability.

[Brief explanation of the drawing]

Fig. 1 shows one embodiment of the wire harness forming method of the present invention, A is a plan view of the forming layout, B is a side view of the forming layout, C is a plan view showing the effect of wire forming, Fig. Figure 2: shows an embodiment of the wire harness forming apparatus of the present invention;
is a front view thereof, B is a side view thereof, C is an enlarged front view of the wiring head, D is an enlarged side view of the wiring head, and Fig. 3 illustrates the shape of the wire harness formed according to the present invention. Plan view Main symbols: 1: Wire group, 2: Wiring table,
3: Wiring head, 4: Wire supply section, 5: Wire gripping section, 6: Cutting machine, 7: Terminal crimping machine, 8: Wire drawing mechanism, 9: Stripping machine, 11: Connector housing insertion machine, 13: Set point, 1
4: Rising roller, 16A16B: Feeding rod, 17
A17B: Guide rail, 18: Head body, 1
9: Swing mechanism, 20: Leading roller, 21A2
1B: index roller, 23: guide section.

Claims (1)

[Scope of Claims] 1. A group of wires is supplied in a flat horizontal row onto the wiring table 2 having a flat upper surface by the wiring head 3, and the wiring table 2 and the wiring head 3 are connected to the wiring table 2. While relatively moving the upper surface in the X-axis and Y-axis directions, the wiring head 3 is given swinging action of an arbitrary angle circuit centered on the perpendicular line to the wiring table 2, and the wires are placed on the wiring table 2. 1. A method for forming a wire harness, which comprises forming a group of wires in a flat horizontal row in a biaxially flexible shape, and at the same time forming the wires, bonding between the wires of the group of wires. 2 A wiring table 2 having a Y-axis operating mechanism in the Y-axis direction of the flat top surface, and a wiring table 2 suspended above the wiring table 2 having an X-axis operating mechanism in the X-axis direction of the flat top surface It is combined with a wiring head 3 having a swinging mechanism that rotates at any angle around a perpendicular line, and the wiring head 3 has a leading roller 20 that pushes and guides the wire group in a horizontal line in a flat shape.
and an index roller 2 following the leading roller 20.
1 is provided, and the wire harness forming apparatus is characterized in that the wire group is arranged horizontally in a row on a wiring table 2 in a flat shape, and is wired in a biaxially freely flexible shape. 3. The wire harness forming apparatus according to claim 2, wherein the index roller 21 is a heating roller for interline bonding.