JP2002100451A - Pressure contact jig and tool for pressure contact joint connector, and wire harness manufacturing apparatus having the jig and tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means, capable of solving problems (1) to (4), in pressure contact using a pressure contact joint connector: (1) to cope with realization of high density of an electric wire and an apparatus, (2) to reduce the cost of the manufacturing apparatus, (3) to enhance productivity by dispensing with labor required for processing of the electrical wire of a part extracted for pressure contact, and (4) to reduce the weight of the pressure contact electric wire more than the conventional. SOLUTION: This system adopts a pressure contact jig 20 for the pressure contact joint connector which is detachable from plural places on a board surface 10 and a wire harness manufacturing device having this jig.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-fitting joint used to connect selected wires among a plurality of wires laid on a panel surface by a press-fitting joint connector in the manufacture of a vehicle wiring harness or the like. The present invention relates to a pressure welding tool for a connector and a wire harness manufacturing apparatus including the pressure welding tool for a pressure joint connector.

[0002]

2. Description of the Related Art In recent years, various kinds of electronic devices are mounted on a vehicle. These electronic devices are connected to each other by a wire harness in which a large number of electric wires and the like are bundled to form an engine, a meter, and a light. Etc. can be accurately controlled and operated. In the manufacture of this type of wire harness, a press-fit joint connector that can easily and quickly connect a large number of electric wires has been used. FIG. 12 shows an example of this press-fit joint connector. The press-fitting joint connector c shown in the figure is a resin molded product having a built-in metal part c1 for conduction, and presses and presses three electric wires d1 to d3 into grooves to respectively press-connect them, as shown in FIGS. b)
As shown in (1), the metal component c1 tears the coating of each of the wires d1 to d3 to conduct, and it is possible to connect three wires together.

FIG. 14 shows an example in which this press-fit joint connector c is applied to a wire harness manufacturing apparatus. In the figure, reference numeral 1 denotes a board surface, reference symbol d denotes a bundle of wires laid on the board surface 1 by a plurality of wire support jigs 2, and reference symbol m denotes a connector or an electrical connector connected to an end of each wire d. Reference numeral 3 denotes a plurality of pressure welding jigs arranged for each pressure welding joint connector and performing a pressure welding operation. It should be noted that the same number of the press-welding jigs 3 as the press-welding joint connectors used in the press-welding are fixed in the space between the electric wires d on the board surface 1.

As shown in FIG. 1, in the conventional wire harness manufacturing apparatus, when the electric wires d are connected by a press-fit joint connector, a connection portion of the electric wires d and the vicinity thereof are connected to, for example, a loop-shaped lead portion d1. Board b
Are drawn out in parallel along the line, and these are fitted into the pressure-welding joint connectors c held by the respective pressure-welding jigs 3 and pressed to make connection. Then, as shown in FIG. 15, after each of the electric wires d after the pressure welding is removed from the pressure welding jig 3 together with the pressure welding joint connector c, the drawn-out portion d1 is bundled thinly and wound with a tape t. After being folded along the side, it is protected by passing through a tape or a protective tube.

[0005]

However, the conventional wire harness manufacturing apparatus described above has the following problems (1) to (4). That is, (1) each pressure welding jig 3 needs to be arranged at a position separated from the electric wire d by a predetermined distance so as not to hinder the tape winding work on the electric wire d after the pressure welding. However, in recent years, with the increase in the number and complexity of electronic devices to be mounted, the number of wires and connectors of wire harnesses for connecting and wiring between them has also increased, so that the density of wires to be laid on the board 1 also increases. There is a tendency that the density is further increased, and it is difficult to secure an installation space for each pressure welding jig 3 in a narrow gap space between the electric wires d. (2) In addition, since the number of the press-welding jigs 3 must be the same as the number of the press-welding jigs 3 for performing the press-welding operation, the manufacturing cost of the apparatus itself increases. are doing.

(3) In addition, since the press-contact portion of each wire d must be delivered to the position of each press-welding jig 3 away from the wire d, as described above, for example, the wire d is formed in a loop along the board surface 1 as described above. Had to be pulled out. However, if this state is maintained, the drawn-out portion d1 after the pressing is left loose, so that it is necessary to fold the tape and wind the tape as described above, which is troublesome and may cause a decrease in productivity. was there. (4) Further, for the same reason, the folded portion of the drawer portion d1 is necessarily thick and heavy, so that there is a problem in applying it to a vehicle part where even a little weight reduction is desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been described in connection with press-fitting using a press-fitting joint connector.
An object is to provide means capable of solving the following (1) to (4). (1) Capable of responding to higher densities of electric wires and devices. (2) The cost of the manufacturing apparatus can be reduced. (3) To improve the productivity by eliminating the time and effort required for processing the wire of the part drawn out for pressure welding. (4) The pressed wire can be reduced in weight as compared with the conventional one.

[0008]

The present invention employs the following means in order to solve the above-mentioned problems. That is, the press-welding tool for a press-joint connector according to claim 1 is a press-welding tool used for connecting selected wires among the plurality of wires laid on the board surface by the press-joint connector. It is characterized by being detachable from a plurality of places on the board surface.

According to the first aspect of the present invention, the following effects (1) to (4) can be obtained. (1) Since it is not necessary to always keep the pressure welding jig for the pressure welding joint connector, there is no need for a dedicated installation space for always installing the pressure welding tool for the pressure welding joint connector.
(2) In addition, since a larger number of press-connecting joint connectors can be pressed by a smaller number (for example, one) than in the past, the number of press-connecting jig tools for a press-connecting joint connector required for a manufacturing apparatus can be reduced. (3) Also, since it can be removed from the board surface and retracted to another place, there is no need to dispose the pressure welding jig at a position away from the wire in consideration of the tape winding operation after wire pressure welding. As a result, the electric wires can be arranged close to the electric wires, so that the electric wires do not have to be drawn out long along the board surface as in the related art. (4) For the same reason, the wire does not have to be drawn out long along the board surface as in the related art, so that the folded portion of the wire does not occur after the pressure welding.

According to a second aspect of the present invention, there is provided a press-welding jig for a press-joint connector, comprising: a jig main body; and a slide work table protruding from the jig main body. The slide work table is arranged near and above a plurality of electric wires laid on the board surface, and the selected electric wire is attachable.

According to the pressure welding jig for the pressure welding joint connector according to the second aspect, when the electric wire laid on the board surface is mounted on the slide worktable, the electric wire is drawn out above the laid electric wire. Since it is only necessary to pull it out slightly upward toward the slide work table, it is not necessary to draw it out largely in parallel along the board surface as in the related art. As a result, the amount of wire drawn out can be extremely reduced as compared with the related art.

According to a third aspect of the present invention, there is provided a pressure-welding tool for a pressure-welding joint connector according to the second aspect, wherein the slide worktable has a connector holding portion for holding the pressure-welding joint connector. A wire holding groove disposed on the left and right of the connector holding portion, wherein each of the wire holding grooves is located on an extension of each wire insertion groove of the press-connecting joint connector on the connector holding portion and has a predetermined shape. The electric wire having a thickness can be held.

According to the pressure welding jig for the pressure welding joint connector according to the third aspect, when the electric wire is attached to the pressure welding joint connector fixed to the connector holding portion,
If the electric wire does not pass through the electric wire holding groove, it is possible to easily find an operation error assuming that an electric wire having an incorrect outer diameter is attached.

According to a fourth aspect of the present invention, there is provided a pressure-welding tool for a pressure-welding joint connector according to the third aspect of the present invention, wherein the sliding worktable is provided with the electric wire in each of the electric wire holding grooves. A shutter is provided to cover the wire holding groove at a position where the wire is not inserted, and slide back when the wire is pressed, and uncover the wire holding groove at a position where the wire is to be inserted. It is characterized by being.

According to the pressure welding jig for the pressure welding joint connector according to the fourth aspect, for example, the number of grooves of the wire insertion groove of the pressure welding joint connector and the number of each of the wire holding grooves are three, respectively. 3 for
When attaching the electric wires, one by one is inserted from the front side to the rear side, and from the left and right electric wire holding grooves, the front side electric wire holding groove to be inserted sequentially goes to the back side. Since the cover can be uncovered and the wire holding groove that should not be inserted yet can be kept covered with the shutter, it is possible to prevent an operation error such as erroneously wiring obliquely.

According to a fifth aspect of the present invention, there is provided a pressure-welding jig for a pressure-welding joint connector according to the third or fourth aspect.
A projection is provided opposite the upper surface of the connector holding portion of the slide worktable and having a predetermined gap dimension with respect to the upper surface.

According to the pressure welding jig for the pressure welding joint connector according to the fifth aspect, the pressure welding joint connector is attached to the connector holding portion of the slide work table in a state where the pressure welding joint connector is inclined or floated, or the pressure welding joint connector. If the wires come off from the connector and the connector lid comes off the crimp joint connector, they will bump into the projections when the slide work table is returned to the jig body, and will go all the way. Since there is no work error, it is possible to reliably detect a work error before the pressure welding work.

According to a sixth aspect of the present invention, there is provided a pressure-welding tool for a pressure-welding joint connector according to any one of the third to fifth aspects, wherein the connector holding portion of the slide worktable has a lid. It is provided that at least one pair of locking claws are provided which locks the pressure welding joint connector before mounting, and which is pushed away by the lid and separated from each other when the lid is pushed onto the pressure welding joint connector. Features.

According to the pressure welding jig for the pressure welding joint connector according to the sixth aspect, it is possible to remove the pressure welding joint connector fixed by the locking claw from the connector fixing portion unless the lid is completely mounted on the pressure welding joint connector. I cannot do it.

According to a seventh aspect of the present invention, there is provided a pressure-welding tool for a pressure-welding joint connector according to any one of the third to sixth aspects, wherein the sliding worktable is provided in addition to the wire holding groove. A spring-type fixing portion for holding the electric wire between the pitches and fixing the electric wire between the pitches.

According to the pressure welding jig for the pressure welding joint connector according to the seventh aspect, the wire can be securely fixed on the slide work table while having a simple component configuration, and the wire can be easily connected. It can also be removed.

According to an eighth aspect of the present invention, there is provided an apparatus for manufacturing a wire harness, comprising the pressure welding jig for a pressure joint connector according to any one of the first to seventh aspects.

According to the wire harness manufacturing apparatus of the eighth aspect, the same operation as in any of the first to seventh aspects can be obtained.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pressure welding jig for a pressure welding joint connector of the present invention and a wire harness manufacturing apparatus provided with the same will be described below with reference to the drawings.
Needless to say, the present invention is not limited to this. FIG. 1 is a schematic device layout diagram showing a pressure welding tool for a pressure welding joint connector and a wire harness of the present embodiment. 2 is a side view of the press-connecting jig for the press-connecting joint connector, and FIG. 3 is a front view as viewed from the line AA in FIG. FIG. 4 is a plan view of a slide worktable of the pressure welding jig for the pressure welding joint connector. FIG. 5 is a cross-sectional view taken along the line BB of FIG. 4 for explaining the operation of the locking claws of the press-connecting jig for the press-connecting connector.
(A) is a figure before attaching a lid, (b) is a figure after attaching a lid. 6 (a) and 6 (b) are side views for explaining the operation of the shutter of the pressure welding jig for the pressure welding joint connector.

As shown in FIGS. 1 to 3, the wire harness manufacturing apparatus according to the present embodiment includes a board 10, a press-welding tool 20 for a press-fit joint connector, and a fixing jig fixed to a plurality of locations on the board 10. 30, a plurality of wire support jigs 40 for supporting the respective wires d laid on the board surface 10, and each fixing jig so as to sandwich the wires d bundled and laid between the wire support jigs 40 therebetween. It has a schematic configuration including a plurality of electric wire temporary placing jigs 50 (omitted in FIG. 1) which are arranged opposite to 30. In addition, the code | symbol m of FIG. 1 is a connector, an electric circuit, etc. previously connected to the terminal of each electric wire d.

Each of the fixing jigs 30 is a rectangular block made of stainless steel, and is fixed to the board surface 10 with bolts in a state of being arranged close to each of the electric wires d. The fixing jig 30 includes a press-connecting jig tool 20 for the press-connecting joint connector.
Is formed so as to be perpendicular to the board surface 10. Each wire support jig 40 has a substantially Y-shape, and is fixed to be perpendicular to the board surface 10. The bundle of the electric wires d is held between the Y-shaped portions.

Each of the electric wire temporary placing jigs 50 includes an electric wire supporting jig 4.
It is a jig for temporarily placing the electric wires d which are temporarily selected for pressure welding among the electric wires d bundled and laid between 0. As shown in FIG. 2, these electric wire temporary placing jigs 50 each include a support portion 51 fixed to the board 10 by bolts, and leg portions connected to the support portion 51 so as to be tiltable around an axis 52 a. 52, and a holding portion 53 fixed on the leg portion 52 and holding the electric wire d.

The holding portion 53 is made of stainless steel, and has a slit 53a for opening the selected electric wire d, which is opened at the upper part. This slit 53a
In order to confirm the outer diameter dimension of the electric wire d to be pressed from now on, there is a clearance dimension that allows only the electric wire d to be selected to be inserted. Therefore, a worker who will perform the pressure welding operation can prevent an operation error of pressing the wrong wire d in advance depending on whether or not the selected wire d can be passed through the slit 53a. In addition, these electric wire temporary placing jigs 50 are in an upright state in which the legs 52 are perpendicular to the board surface 10 (the state in FIG. 2), and are tilted around the shaft 52a to move the holding portion 53 away from the bundle of the electric wires d. The fall state can be selected manually.

As shown in FIGS. 2 and 3, the press-connecting jig 20 for the press-connecting joint connector connects selected wires d among a plurality of wires d laid on the board surface 10 by the press-connecting connector c. This is a press-welding jig used to perform mounting and dismounting at a plurality of positions on the board surface 10. The press-connecting jig 20 for the press-fitting joint connector includes a support leg 21 fitted into a square hole 30 a of each fixing jig 30, a jig main body 22 supported and fixed on the support leg 21, A sliding worktable 23 protruding from the main body 22, a press-contact joint 24 mounted on the slide worktable 23, a press-contact portion 24 pressing the electric wire and the cover from above, and a press-contact lever for operating the press-contact operation of the press-contact portion 24 25 and a display lamp 2 for displaying the pressing work progress status
6 and a slide lever 27 operated when the slide work table 23 is protruded.
The press-connecting jig 20 for the press-fit joint connector is used.
Is suspended above the board surface 10 by a rope 28 and supported.

The press-connecting jig 20 for a press-fitting joint connector includes a support leg 21, a jig main body 22, a slide work table 23, a press-contact portion 24, a press-contact lever 25, and a display lamp 2.
6 and the slide lever 27 form an integrated unit, so that they are extremely compact compared to a configuration in which they are separated separately, and are easy to handle and easy to handle. ing.

The support leg 21 is a square pillar made of stainless steel, and has a shape that can be fitted to the square hole 30a of each fixing jig 30 without rattling and rotating around its axis. are doing. The jig body 22 has a substantially vertically elongated rectangular block shape, and a ring 2 fixed to an upper portion thereof.
It is suspended and supported by a rope 28 connected to 2a. Since the rope 28 passes through a pulley (not shown) provided on the board surface 10 and is connected at the other end to a counterweight (not shown), even a weak operator can lightly. The press-connecting jig 20 for the press-connecting connector can be lifted or moved sideways. Further, since the pressure welding jig 20 (the jig main body 22) for the pressure welding joint connector has a simple configuration in which it is suspended above the substantially center position of the board surface 10 by suspending and supporting the rope 28, it is inexpensive. In spite of the configuration, it has the advantage of excellent workability in that the press-contact operation can be performed extremely easily regardless of how many press-contact portions are provided on the board surface 10. Furthermore, when facing the board surface 10 (that is, when viewed from the line of sight in FIG. 1), not only the horizontal electric wire d (the electric wire d laid in the center of FIG. It is also possible to easily cope with the pressure welding of the electric wire d laid in the direction and the vertical direction.

At the lower part of the jig body 22, a workbench holder 2 for slidably holding a slide workbench 23 is provided.
2b is fixed. By operating the slide lever 27, the slide work table 23 housed at the back side of the work table holding portion 22b is made to protrude toward the operator facing the front. Further, a pair of projections 22c facing the upper surface 23u of a connector holding portion 23b (described later) of the slide worktable 23 and having a predetermined gap size with respect to the upper surface 23u are fixed to the jig body 22. Details of the projection 22c and the slide worktable 23 will be described later.

The press contact portion 24 is a block accommodated in the jig main body 22 so as to be vertically movable, and has a tooth 2 for pressing the electric wire d and the cover of the press contact joint connector at the lower end thereof.
4a are formed in the same number as the number of electric wires d to be pressed. The press contact portion 24 is connected to the air tube 24b.
Is increased or decreased by the air pressure of the compressed air supplied via the The raising and lowering operations are performed by rotating the press-contact lever 25 by an operator.

The pressing operation for lowering the pressing portion 24 is performed not by manual operation but by compressed air for the following reason. That is, when the wire d is pressed into the wire insertion groove of the press-fit joint connector, or when the cover is pressed against the press-fit joint connector, if the wire d or the cover is not properly fitted, the worker must manually There is a danger that they will be forced into contact with each other. On the other hand, in the present embodiment, a configuration in which the pressure contact is performed by the air pressure of the compressed air is adopted, so that a pressure contact force exceeding a certain pressure is not applied. Thereby, if the electric wire d and the lid are not properly fitted, it is not possible to completely press-contact, so that the worker can visually check this to confirm the fit of the electric wire d and the lid. .

As shown in FIG. 4, the slide work table 23 includes a pedestal portion 23a, a connector holding portion 23b which is disposed substantially at the center of the upper surface of the pedestal portion 23a and holds the press-contact joint connector c, and a connector holding portion 23b. The outer diameter dimension checking section 23c arranged adjacent to the left and right of the section 23b, and the wire holding section 23d (spring type fixing section) arranged at the left and right positions sandwiching the connector holding section 23b and the outer diameter dimension checking section 23c. ), And a pair of shutters 23e mounted on the pedestal portion 23a so as to slide on the upper portions of the respective outer diameter dimension checking portions 23c. The slide worktable 23 is arranged near the upper part of a bundle of a plurality of electric wires d laid on the board surface 10 and is capable of mounting the electric wires d selectively drawn upward.

The slide lever 2 is mounted on the base 23a.
2 is connected, and the pedestal portion 23a (ie, the slide worktable 23) is located on the near side by hitting the knob of the slide lever 27 toward the right side of the drawing sheet when viewed from the side shown in FIG. It is possible to slide it. Note that the slide worktable 23 that has protruded is moved to the jig body 2.
2 to re-enter the slide work table 2
This is done by pushing back 3.

As shown in FIG. 4, the connector holding portion 23b has a concave portion 23b1 for holding the press-connecting connector c without looseness, and a pair of retaining portions for the press-fitting joint connector c fitted in the concave portion 23b1. Locking claw 2
3b3. Each locking claw 23b3 is shown in FIG.
As shown in (a), they are arranged to face each other with the press-contact joint connector c interposed therebetween, and are urged so as to rotate around the shaft 23b5 and approach each other by springs 23b4 provided respectively.

When the press-connecting joint connector c before the electric wire d and the lid f are mounted in the concave portion 23b1 is pushed into the connector holding portion 23b described above from above,
The two locking claws 23b hit the press-connecting joint connector c.
Since the space between the three is opened and closed again, the attachment of the press-connecting connector c is completed as shown in FIG.

Further, as shown in FIG. 5 (b), when the lid f is pressed into contact, the two locking claws 23b3
Since the space is pushed apart (displaced) and separated, it is possible to automatically release the fixation by the locking claw 23b3. As described above, by preventing the press-connecting joint connector c from being detached unless the cover f is completely fitted, the worker can easily confirm a press-fit error of the cover f or the electric wire (when the electric wire is press-fitted). If not correctly fitted to the joint connector, this wire will rise and hinder the lid f from being pushed down).

As shown in FIG. 4, each outer diameter dimension checking section 23
c has a predetermined thickness (the same thickness as the thickness of the wire d to be mounted in each wire insertion groove c2), which is located on an extension of each wire insertion groove c2 of the press-fit joint connector c on the connector holding portion 23b. Wire holding groove 23 capable of holding wire d)
A plurality of c1s are formed. These wire holding grooves 23c1
Have the same number (three in this embodiment) as the wire insertion groove c2. With this configuration, when the electric wire d is attached to the press-fit joint connector c fixed to the connector holding portion 23b, the electric wire d is inserted into the electric wire holding groove 23c.
If it does not pass through 1, it is possible to easily find an operation mistake assuming that an electric wire having an incorrect outer diameter is attached.

The electric wire holding portion 23d is provided with each electric wire holding groove 23c.
In addition to the above, a spring for holding the wire d between the pitches and fixing the wire d is fixed in parallel to the pedestal portion 23a. The pitch interval is smaller than the outer diameter of the electric wire d. The operator holds the electric wire d with both hands, mounts the electric wire d through the outer diameter dimension checking portion 23c and the electric wire insertion groove c2, and simultaneously clamps the electric wire d by sandwiching both sides of the electric wire d into the electric wire holding portion 23d. The wire d can be fixed without loosening by tensioning.

As shown in FIG. 6, each shutter 23e covers the wire holding groove 23c1 of the wire holding groove 23c1 at a position where the wire d is not inserted, and slides when the wire d is pressed. And has the function of uncovering the wire holding groove 23c1 at the position where the wire d is inserted.

That is, as shown in FIG. 6 (a), when an attempt is made to attach a broken wire d to a press-fit joint connector c to which no wire d is attached.
This first comes into contact with the slope 23e1 of the shutter 23e. When the electric wire d is further pushed in from this state, the electric wire d pushes the slope 23e1 and retreats to the left side of the drawing, so that the wire holding groove 23c1 at the right end of the drawing is uncovered, and the electric wire d is fitted. At this time, the other wire holding groove 23c1 to which the wire d should not be fitted is still covered, so that it is possible to prevent, for example, an erroneous wiring operation obliquely. Similarly, this time, by sequentially inserting the middle wire holding groove 23c1, the next wire holding groove 23c1 located at the left end of the paper, and each wire d, all the wires d are correctly inserted into each wire insertion groove c2. It will be fitted.

The display lamp 26 shown in FIG. 3 comprises a press-contact completion lamp 26a and a work end lamp 26b, each of which is lit according to the progress of the work. The pressing operation of the press-connecting jig 20 for the press-connecting joint connector of the present embodiment will be described below with reference to FIGS. 7 to 10, for the sake of explanation, the display lamp 26 arranged on the front side is drawn so as to be located on the side.

First, as shown in FIG. 7, after operating the slide lever 27 to slide the slide worktable 23 toward the operator, the press-contact joint connector c is attached to the connector holding portion 23b. Locking claw 23b3
Fix between. Then, the electric wire d previously placed on the electric wire temporary holding jig 50 is taken out, and each electric wire insertion groove c2 is taken out.
Then, one by one is inserted from the near side to the far side. Then, when all the electric wires d are fitted, the slide worktable 23 is pushed back into the jig main body 22 together with the press-fitting joint connector c and returned. At this time, the pressure welding complete lamp 2
6a and the work end lamp 26b are both turned off.

Next, as shown in FIG.
Is operated, the press contact portion 24 is lowered, and each tooth 24
a pushes each wire d against the press-connecting joint connector c and press-connects. When normal pressure contact is performed, the pressure contact portion 24 is completely lowered, and a bottom dead center detection switch (not shown) provided for the pressure contact portion 24 is turned ON. Then, this turns on the pressure-completion lamp 26a, and the operator visually confirms the success of the pressure-welding. Thereafter, the pressure contact lever 2
5 to raise the press contact portion 24 again to the top dead center position, and then operate the slide lever 27 to push the slide worktable 23 again to the operator side.

Next, as shown in FIG. 9, after the lid f is put on the press-fitting joint connector c and pushed in, the slide work table 23 is pushed back into the jig body 22 and accommodated again.
Then, the pressure contact lever 24 is operated again to lower the pressure contact portion 24, and the lid f is pressed against the pressure contact joint connector c with each tooth 24a. When a normal pressure contact is made, the pressure contact portion 24 is completely lowered, and the bottom dead center detection switch is turned to the O position.
N. Then, since this turns on the work end lamp 26b, the operator visually confirms the end of the pressure welding (FIG. 1).
0). Thereafter, the pressing lever 25 is operated to operate the pressing portion 2.
4 and operate the slide lever 27 to operate the workbench 2.
3 is pushed to the worker side. Then, by holding the electric wire d by hand and pulling it up from the slide worktable 23, the press-fit joint connector c is naturally removed from the connector holding portion 23b, and the press-fitting operation is completed.

According to the wire harness manufacturing apparatus provided with the press-connecting jig 20 for the press-connecting joint connector of the present embodiment described above, the following structure is adopted by adopting a structure that can be attached to and detached from a plurality of places on the board surface 10. The effects of 1) to (4) can be obtained. That is, (1) the pressure welding jig 20 for the pressure welding joint connector.
Need not always be fixed on the board surface 10, so that a dedicated installation space for always installing the pressure welding jig 20 for the pressure welding joint connector is unnecessary. Therefore, even when the electric wire density on the board surface 10 increases, the press-welding jig 20 for the press-joint connector does not interfere, and it is possible to cope with an increase in the density of electric wires and devices. (2) Also, since the number of the press-connecting jigs 20 for the press-connecting joint connector can be reduced by a smaller number (i.e., one) than in the past, the press-connecting joint connectors c at a plurality of locations can be pressed.
The number of press-connecting jigs 20 for press-connecting joint connectors required for the manufacturing apparatus can be reduced. Therefore, the cost of the wire harness manufacturing device can be reduced.

(3) Since the pressure welding jig 20 for the pressure welding joint connector can be detached from the board surface 10 and retracted to another place, the pressure welding jig can be used in consideration of the tape winding operation after the wire pressure welding. It is not necessary to arrange at a position separated from the electric wire d. As a result, the electric wire d can be disposed close to the electric wire d.
It does not have to be pulled out long along 0. This eliminates the need for extra processing work such as folding the portion of the wire that has been pulled out after the pressure welding, and can also increase productivity. This will be specifically described with reference to FIG.
According to the inventor's estimation, the pair of wire support jigs 40, 40
When an electric wire d is drawn out from the electric wire d laid therebetween, the amount of electric wire db required when using the conventional wire harness manufacturing device is assumed to be L, and it is necessary to use the wire harness manufacturing device of the present embodiment. Of the electric wire da was determined to be only 1/20. As described above, the amount of the wire drawn out can be remarkably reduced, so that the above-described effect can be reliably obtained.

(4) Further, the press-connecting jig 20 for the press-connecting joint connector does not have to draw out the electric wire d along the board surface 10 as in the related art for the same reason. Therefore, since the folded portion of the electric wire d is eliminated, the thickness of the electric wire bundle manufactured by press-contacting can be reduced and the weight can be reduced as compared with the related art. Further, according to the pressure welding tool 20 for the pressure welding joint connector,
Since the slide work table 23 having the connector holding portion 23b and the wire holding groove 23c1 is provided, if the wire d to be attached to the press-fit joint connector c is mistaken, the wire holding groove 23c1 cannot be passed. It is possible to easily find a work error. As a result, it is possible to reduce the incidence of defective products.

According to the press-connecting jig 20 for the press-connecting joint connector, since the slide worktable 23 is provided with the shutter 23e, the electric wires d are inserted one by one from the front side to the back side. And left and right wire holding grooves 2
3c1, the wire holding groove 23 on the near side to be inserted.
Uncover the electric wire holding groove 23c1, which should not be inserted yet, from the shutter 2
Since it can be kept covered with 3e, it is possible to prevent work errors such as incorrectly wiring diagonally.

Further, according to the pressure welding jig 20 for the pressure welding joint connector, since the jig body 22 is provided with the projection 22c, the connector holding portion 23b of the slide worktable 23 is provided.
Mounting of the press-connecting joint connector c, mounting of the electric wire d to the press-connecting joint connector c, and mounting of the lid f to the press-connecting joint connector c,
It is possible to surely check before the pressure welding work. Also,
According to the pressure welding jig 20 for a pressure welding joint connector, when the lid f is pushed into the pressure welding joint connector c, at least one pair of locking claws 23b3 which are pushed away by the lid f and separated from each other are provided. Unless the lid f is attached, the press-connecting joint connector c is engaged with the locking claw 2.
Since the state held in 3b3 is maintained,
It is possible to prevent the lid f from being out of stock with the press-connecting joint connector c.

In the present embodiment, the case where the pressure welding jig 20 for the pressure welding joint connector of the present invention is applied to a wire harness manufacturing apparatus has been described as an example. However, the present invention is not limited to this and is applicable to other manufacturing apparatuses. You may. Also,
In the present embodiment, one press-contact joint tool 20 for the press-contact joint connector is provided for one board surface 10, but the present invention is not limited to this.
A plurality may be provided according to the type. In this case, by changing the fitting shape of the fixing jig 30 and the support leg 21 for each type, it is possible to prevent the wrong press-fitting jig for the press-fitting joint connector from being selected.

[0054]

According to the pressure welding jig for a pressure welding joint connector according to the first aspect of the present invention, the following (1) to (1) to
The effect of (4) can be obtained. That is, (1) Since the press-welding tool for a press-fit joint connector of the present invention does not need to be constantly fixed on the board surface,
There is no need for a dedicated installation space for always installing the pressure welding tool for the pressure welding joint connector. Therefore, even if the electric wire density on the panel surface is increased, the press-welding jig for the press-fit joint connector does not interfere, and it is possible to cope with an increase in the density of electric wires and devices. (2) The press-welding tool for a press-weld joint connector of the present invention can perform press-welding of a plurality of press-welded joint connectors with a smaller number (for example, one) than the conventional one, so that a press-welded joint connector required for a manufacturing apparatus. The number of pressure welding jigs required is small. Therefore, the cost of the manufacturing apparatus can be reduced. (3) Further, since the pressure welding tool for a pressure welding joint connector of the present invention can be removed from the board surface and retreated to another place, the pressure welding tool is separated from the electric wire in consideration of a tape winding operation after the wire pressure welding. There is no need to place them in different locations.
As a result, the electric wires can be arranged close to the electric wires, so that the electric wires do not have to be drawn out long along the board surface as in the related art. This eliminates the need for extra processing work such as folding the portion of the wire that has been pulled out after the pressure welding, and can also increase productivity. (4) Further, the press-connecting jig for the press-connecting joint connector of the present invention does not need to draw out the electric wire long along the board surface as in the related art for the same reason. Therefore, since the folded portion of the electric wire is eliminated, the thickness of the electric wire bundle manufactured by press-contacting can be reduced and the weight can be reduced as compared with the related art.

According to the pressure welding jig for the pressure welding joint connector according to the second aspect, when the electric wire laid on the board surface is mounted on the slide worktable, the electric wire is pulled out at a position above the laid electric wire. Since it is only necessary to pull it slightly upward toward the work table, it is not necessary to draw it out largely parallel to the board surface as in the conventional case. As a result, it is possible to reduce the amount of the drawn out electric wires as compared with the related art.

According to the third aspect of the present invention, there is provided a press-fitting jig for a press-joint connector, comprising a slide worktable having a connector holding portion and an outer diameter dimension checking portion having a plurality of wire holding grooves. If the wrong wire is attached to the press-fit joint connector, the wire cannot be passed through the wire holding groove, so that a work error can be easily found. As a result, it is possible to reduce the incidence of defective products.

According to the pressure welding jig for the pressure welding joint connector of the fourth aspect, the shutter is provided on the slide worktable, so that the electric wires are inserted one by one from the front side to the rear side. And the left and right wire holding grooves,
Uncover the wire holding groove that should not be inserted from the near side to the back side in order, and the wire holding groove that should not be inserted can still be covered with the shutter. Work errors such as wiring can be prevented.

Further, according to the pressure welding jig for the pressure welding joint connector according to the fifth aspect, the protrusion is provided on the jig main body, so that the pressure welding joint connector is attached to the connector holding portion of the slide worktable, and the pressure welding joint connector is provided. It is possible to surely check the attachment of the electric wire to the connector and the attachment of the lid to the press-fitting joint connector before the press-fitting operation.

Further, according to the pressure welding jig for the pressure welding joint connector according to the sixth aspect, when the lid is pushed onto the pressure welding joint connector, at least one pair of locking claws are pushed away by the lid and separated from each other. As a result, as long as the lid is not mounted, the press-connecting joint connector is maintained in a state of being held by the locking claw, so that it is possible to surely prevent the press-connecting connector from being out of stock.

According to the pressure welding jig for the pressure welding joint connector according to the seventh aspect, while having a simple component structure,
In addition to being able to securely fix the electric wire on the slide working table, the electric wire can be easily removed.

According to the wire harness manufacturing apparatus of the eighth aspect, it is possible to obtain the same effects as in any of the first to seventh aspects.

[Brief description of the drawings]

FIG. 1 is a schematic device layout diagram showing an embodiment of a pressure welding tool for a pressure welding joint connector of the present invention and a wire harness manufacturing apparatus provided with the tool.

FIG. 2 is a side view of the pressure welding jig for the pressure welding joint connector.

3 is a front view of the press-connecting jig for the press-connecting joint connector as viewed from the line AA in FIG. 2;

FIG. 4 is a plan view of a slide worktable of the press-connecting jig for the press-connecting connector.

FIG. 5 is a sectional view taken along the line BB of FIG. 4, illustrating the operation of the locking claw of the press-connecting jig for the press-connecting joint connector;
(A) is a figure before attaching a lid, (b) is a figure after attaching a lid.

6 (a) and 6 (b) are side views for explaining the operation of the shutter of the pressure welding jig for the pressure welding joint connector.

FIG. 7 is an explanatory diagram showing an initial state of a pressure welding operation performed by the pressure welding tool for the pressure welding joint connector.

FIG. 8 is an explanatory view showing the same pressure welding operation, and is a continuation of FIG. 7;

FIG. 9 is an explanatory view showing the press-contact operation and is a continuation of FIG.

FIG. 10 is an explanatory view showing the same pressure welding operation, and is a continuation of FIG. 9;

FIG. 11 is a plan view comparing the wire drawing length of the wire harness manufactured by the wire harness manufacturing device of the present embodiment with the wire drawing length of the wire harness manufactured by the conventional wire harness manufacturing device.

FIG. 12 is a plan view showing a press-connecting joint connector and electric wires attached thereto.

FIG. 13A is a plan view showing the press-fit joint connector after wire press-connecting, and FIG. 13B is an explanatory diagram showing an electric circuit thereof.

FIG. 14 is a front view of a conventional wire harness manufacturing device equipped with a conventional pressure welding tool.

FIG. 15 is a perspective view showing a state in which a wire drawing portion after being pressed by a conventional pressing tool is folded and tape-wound.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Board surface 20 ... Pressure welding jig tool for pressure welding joint connectors 22 ... Jig body 22c ... Projection 23 ... Slide work table 23b ... Connector holding part 23b3 ... Locking claw 23c1 ... Electric wire holding groove 23d ... Electric wire holding part (spring type fixing part) 23e ... Shutter c ... Press-welding joint connector d ... Electric wire

Continuation of the front page (72) Inventor Mitsushi Kawato 1-3-1, Yawatabara, Yonezawa-shi, Yamagata Yonezawa Electric Wire Co., Ltd. F-term in the Yawatahara Works (reference) 5E051 JA03 JB04 5G355 AA03 BA01 CA03 CA06

Claims (8)

[Claims] Claims 1. A plurality of electric wires laid on a board,
A press-welding tool for connecting a selected wire with a press-welding joint connector, wherein the tool is detachable from a plurality of positions on the board surface. . 2. The pressure welding jig for a pressure welding joint connector according to claim 1, further comprising: a jig main body; and a slide work table protruding from the jig main body, wherein the slide work table is laid on the board surface. A press-fitting jig for a press-fitting joint connector, wherein the press-fitting joint connector is arranged near and above the plurality of electric wires, and the selected electric wire is mountable. 3. The press-welding jig for a press-joint connector according to claim 2, wherein the slide worktable has a connector holding portion for holding the press-joint connector, and electric wires arranged on the left and right sides of the connector holding portion. A holding groove is provided, wherein each of the wire holding grooves is located on an extension of each of the wire insertion grooves of the press-fit joint connector on the connector holding portion and is capable of holding the wire of a predetermined thickness. Characteristic pressure welding jig for pressure welding joint connector. 4. The pressure welding jig for a pressure welding joint connector according to claim 3, wherein the slide worktable covers the wire holding groove at a position where the wire is not inserted among the wire holding grooves. A press-fit joint for a press-fit joint connector, comprising: a shutter that slides away when the electric wire is pressed, retreats, and uncovers the electric wire holding groove at a position where the electric wire is to be inserted. tool. 5. The pressure welding jig for a pressure welding joint connector according to claim 3, wherein the jig body faces an upper surface of the connector holding portion of the slide worktable, and is opposed to the upper surface. A pressure welding jig for a pressure welding joint connector, wherein a projection having a predetermined gap dimension is provided. 6. The press-welding tool for a press-joint connector according to claim 3, wherein the press-holding joint connector before attaching a lid is locked to the connector holding portion of the slide worktable. A pressure welding jig for a pressure welding joint connector, comprising: at least one pair of locking claws which are pushed away by the lid and separated from each other when the lid is pushed into the pressure welding joint connector. 7. The pressure welding jig for a pressure welding joint connector according to claim 3, wherein the electric wire is held between the pitches and fixed to the slide worktable in addition to the electric wire holding groove. Press-fitting jig for a press-fit joint connector, comprising a spring-type fixing portion. 8. A wire harness manufacturing apparatus comprising the pressure welding tool for a pressure welding joint connector according to any one of claims 1 to 7.