JPH1139967A - Apparatus for molding pressure connection joint connector and method for forming pressure connection joint connector by apparatus thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the diameter of a wire harness from becoming large at the time when a pressure connection joint connector is tape-wound and fixed on the main wire of the wire harness by lessening the excessive electric wire of a lead wire necessary for pressure connection joint work. SOLUTION: A temporarily holding jig which temporarily positions the case main body of a pressure connection joint connector adjacently to a main wire WA of a wire harness held by an electric wire holding jig 14 is erected upright on a layout board 20. On the other hand, an arm 21 having a seat face 13 for pressing for pressure connection in one end is journalled to a frame 19 while the other end being made freely rotatable, the seat face 13 for pressing for pressure connection is made rotatable and movable to the upper position in the wire WA, and a pressure connection press 15 and a cover closing apparatus 16 are hung in a manner that these apparatuses 15, 16 are moved down to the frame 19 and positioned above the seat face 13 for pressing for pressure connection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for forming a press-fit joint connector to a wire harness composed of a large number of electric wires. An object of the present invention is to prevent the diameter of the wire harness from being increased when the joint connector is fixed to the main wire of the wire harness by tape winding, and at the same time, to improve the workability of the fixing work.

[0002]

2. Description of the Related Art A wire harness composed of a large number of electric wires is provided by arranging each electric wire on an electric wire holding jig projecting according to the wiring pattern of the electric wire on a drawing board for forming the wiring harness. In addition, the outer circumference of the electric wire group is bound by tape winding. As described in Japanese Patent Application Laid-Open No. 9-35538, a press-fit joint connector having a press-fit terminal for short-circuit is mounted between specific wires that need to be connected to each other in the wire group.

In order to form a wire harness W / H to which the above-mentioned press-connecting connector is attached, as shown in FIG. 6A, a joint connector 1 to which a press-connecting terminal 1a is attached is installed on the upper surface of a wiring diagram board 2. While holding the press-contact receiver 3, the electric wires wa and wb are wired to a number of jigs 4 protruding along the wiring pattern. At this time, the specific electric wire we connected to the press contact terminal 1a is, as shown in the figure,
After taking out the wires to the joint connector 1 at the installation position of the joint connector 1 and laying out all the wires wa and wb, a specific wire we to be press-connected to the press-connecting terminal 1a is disposed on the joint connector 1 and temporarily fixed. I do.

[0006] Next, as shown in FIG. 6 (B), the specific electric wire we is pushed down automatically or manually by a press machine 5 on the press-contact receiving device 3, and the specific electric wire we and the press-connecting terminal 1 are pressed.
a and press-connect. As a result, the insulation cover of the specific electric wire we is cut and press-fitted by the slot of the electric contact portion of the press contact terminal 1a of the joint connector 1, and the electric contact portion and the core wire of the specific electric wire we are electrically connected. Next, as shown in FIG. 6C, using the fitting jig 6,
The upper part of the joint connector 1 is closed with a lid 1b, and finally, the joint connector 1 in a state of branching laterally is positioned on the outer periphery of the wire group W, and as shown in FIG. The outer circumference together with the group W is wound around a tape T and fixed.

[0005]

However, the work of pressing the specific electric wire we onto the joint connector 1 is performed by pressing the press machine 5 from above while the joint connector 1 is positioned on the connection receiver 3. Therefore, due to the working space of the press machine 5, the press-contact receiver 3 must be installed at a position separated from the trunk line WA of the wire group W. For this reason, the drawing-out dimension of the specific electric wire we provided to the pressure welding joint from the trunk WA becomes unnecessarily long, and after the pressure welding operation is completed, the joint connector 1 is connected to the trunk WA.
As shown in FIG. 6 (E), when the wire harness W / H is fixed to the wire harness W / H, the extra length of the specific wire we is generated. In addition, it takes time to process the extra length evenly along the outer periphery of the trunk WA.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem, and performs a press-contact press of a specific electric wire to a joint connector at an upper position close to a main line of a wired wire harness, and a press-contact press used for a press-connecting operation. The purpose is to reduce the excess length of the specific wire for the pressure welding joint, prevent the wire harness from increasing in diameter, and improve workability I have.

[0007]

In order to achieve the above object, according to the present invention, a plurality of drawing boards for assembling a wire harness are conveyed by a conveyor in a state of being arranged in parallel, and the conveying of the drawing boards is performed. Forming a press-fit joint connector provided in a wire harness assembling apparatus that assembles a wire harness while laying wires by means of a wire holding jig mounted on the drawing board with a conveyor mounting frame erected along the path. An apparatus, wherein a temporary holding jig for temporarily placing a case body of a press-fit joint connector adjacent to a main line of a wire harness held by a wire holding jig is erected on the drawing board. On the other hand, the other end of the arm provided with the press-contact press pedestal surface at the end of the frame is rotatably supported so that the press-contact press pedestal surface is rotatable to a position above the main line. In addition, there is provided an apparatus for forming a press-joint connector, wherein a press-press machine and a lid closing device of a press-connect connector are suspended from the frame so as to be able to descend, and can be positioned above the pedestal surface for the press-press. I have.

With the above construction, the temporary holding jig of the press-connecting joint connector erected on the drawing board adjacent to the main line does not perform the press-contact operation in cooperation with the press-press machine. While the specific electric wire to the joint connector is laid, a simple function of only temporarily arranging the press-fit joint connector is sufficient, so that the size can be reduced and the device can be arranged close to the main line. Therefore, the extra length of the specific electric wire drawn from the main line can be minimized. In addition, since the press-contact press pedestal surface serving as a receiving portion for pressing the specific electric wire to the press-connecting joint connector is provided at the tip of the arm which can be rotatably moved to a position above the main line, the press-connecting joint connector is provided just above the main line. The operation of pressing the specific electric wire to the cover and closing the lid can be performed, and therefore, the specific electric wire for the press-connecting joint having a small extra length can be pressed without any trouble. In addition, since the arm provided with the press-contact press pedestal surface is pivotally supported by the conveyor mounting frame, there is no need to provide a press-contact press pedestal for each drawing board, so that the equipment can be shared and the equipment cost can be reduced.

According to a second aspect of the present invention, there is provided a method for forming a press-fit joint connector using the press-fit joint connector forming apparatus according to the first aspect, wherein the press-fit joint connector is temporarily placed on the temporary holding jig. In the case body,
After inserting the wire for the pressure welding joint drawn out from the wire harness main wire, the arm is rotated and moved to be positioned above the main wire held by the wire holding jig, and the press-contact press base surface at the tip thereof. Then, the case body of the press-connecting joint connector is transferred, and then the press-pressing machine is lowered, and the wire is pressed against the press-connecting terminal in the case body of the press-fitting joint connector. Lower the lid closing machine, attach the lid to the case body, assemble the crimping joint connector, then remove the assembled crimping joint connector from the crimping press pedestal surface and hold it on the wire holding jig located directly below The present invention provides a method for forming a press-fit joint connector that is fixedly wound around a main line by tape.

[0010] In this way, in addition to being able to press the specified electric wire to the press-connecting joint connector and to close the lid immediately above the main line as described above, the press-connecting joint connector after the press-connecting process is connected to the outer periphery of the main line. In this case, since the extra length of the specific electric wire is small, the trouble of processing the extra length along the outer periphery of the trunk line can be reduced, and the workability of fixing the pressure welding joint connector with the tape can be improved. In addition, it is possible to prevent the wire harness from increasing in diameter due to the extra length. Also, the insertion of the specific electric wire for the pressure welding joint into the pressure welding joint connector can be performed in advance on a temporary holding jig erected on each drawing board, so that the pressure welding press supported by the frame via the arm. At the press-contact position provided with the pedestal pedestal surface, the press-contact and the cover closing operation by the press-contact press machine and the cover closing machine can be efficiently performed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an apparatus for forming a press-fit joint connector provided in a wire harness assembling apparatus. The assembling apparatus includes a large number of wire holding jigs 14 erected along the wiring path of the wire harness W / H. Figure 1 with
2, a carriage 17 for supporting the drawing board 12 in an inclined manner, and a conveyor 18 for transferring the carriage 17 along a predetermined transport path.
Consists of The conveyor 18 is attached to a frame 19 installed on the floor, and performs a predetermined wiring assembly operation while each of the drawing boards 12 is transported by the conveyor 18.

Apparatus 1 for forming press-fitting joint connector
Reference numeral 0 denotes a temporary holding jig 20 that stands upright on the drawing board 12 and temporarily places the case body 11 of the press-connecting joint connector.
An arm 21 rotatably supported by the frame 19 and having the press-contact press base surface 13 at the end thereof;
9 comprises a press-contact press machine 15 and a lid-closing machine 16 which are suspended and supported.

The temporary holding jig 20 is a simple plate-like body having a recess 20a for fitting and holding the case body 11 of the press-connecting joint connector. Of these, the specific electric wire we for forming the joint circuit is erected so as to be adjacent to the wiring portion of the trunk line WA from which the specific electric wire we is drawn out.

The press contact pedestal surface 13 provided at the tip of the arm 21 has a recess 1 for fitting and holding the case body 11.
3a, and has an engagement projection 13b with which a positioning claw 15a of the press-contact press machine 15 described later is engaged, and has a structure capable of withstanding the pressing force at the time of press-contact operation of the press-press machine 15.

An arm 21 for supporting the press contact pedestal surface 13 is provided with a bearing 19 a mounted on a frame 19.
The intermediate portion is vertically rotatably supported, and a balance weight 21b is provided at the other end, or a spring (not shown) or the like is applied to the shaft support to allow the arm 2 to move.
1 can be stopped at an arbitrary vertical rotation position. The arm 21 has a length and a frame 19 such that the press-contact press seat surface 13 is rotated and positioned above a wiring portion of the main line WA from which the specific electric wire we for forming the joint circuit is drawn out. The mounting position is set.

The press-contact press machine 15 for press-contacting the specific electric wire we to the press-contact terminal 11a of the press-joint connector on the press-contact press pedestal surface 13 includes a press-contact press die 15b driven up and down by a hydraulic or motor. The portion is provided with a claw portion 15a which is opened and closed to engage and engage with the engaging protrusion 13b of the press contact pedestal surface 13. On the other hand, a lid closing machine 16 for attaching the lid 11b to the case body 11 of the pressure welding joint connector after the completion of the pressure welding operation by the pressure welding press machine 15, presses the lid 11b manually or electrically using a lever to push the lid 11b to the case body. 11 to be fitted and attached.

As shown in FIGS. 5 (A) and 5 (B), the press-connecting connector has a well-known structure and houses a press-connecting terminal 11a having a U-shaped slot inside a case body 11, and is provided separately. The electrical connection member 11c is attached so that the required press contact terminals 11a are electrically connected to each other. The press contact terminal 11a includes an electric contact portion 11d for press-connecting the specific electric wire we and a male electric connection portion 11e for fitting a tab of the electric connection member 11c. It is to be noted that a type in which an arbitrary number of the press contact terminals 11a are connected and which does not require the separate electric connection member 11c can be used.

Next, a method of forming the press-connecting joint connector will be described. As shown in FIG. 3A, the case body 11 of the press-connecting joint connector is temporarily placed on the temporary holding jig 20, and in this state. General electric wires wa and wb are laid along a predetermined wiring route, and a specific electric wire we for a pressure welding joint is pulled out from the trunk line WA, inserted into a predetermined position of the case body 11, and temporarily fixed. Then, as shown in FIG. 3B, the arm 21 is rotated downward to be positioned above the trunk line WA held by the wire holding jig 14, and the case body 13 Transfer 11

Next, as shown in FIG. 3C, the press-contact press machine 15 is lowered and the press-contact press
The upper specific electric wire we is brought into pressure contact with the press contact terminal 11a in the case body 11 by engaging and positioning the third electric wire 3 with the claw portion 15a, and then lowering the press contact die 15b to press the specific electric wire we. After the pressing is completed, the pressing press 15 is raised, and as shown in FIG. 3D, the lid closing machine 16 is lowered, and the lid 11b is attached to the case body 11 to complete the assembly of the pressing joint connector.

Next, as shown in FIG. 4 (A), the press-fit joint connector assembled from the press-contact press pedestal surface 13 is removed, and as shown in FIG. 4 (B), the wire harness W / H located immediately below The wire harness W / H having the press-connecting joint connector is completed by winding and fixing with a tape T along the extra length of the press-connecting joint connector and the specific electric wire we along the outer periphery of the trunk line WA. In this manner, in the press-fit joint connector fixed to the outer periphery of the trunk WA, the extra length of the specific wire we is minimized, so that the specific wire we is connected to the trunk WA.
It is not necessary to absorb the extra length by an operation such as folding back many times when the outer periphery is made to conform to the outer periphery of the device, and the workability can be improved.

The arm 21 may be rotatable in the horizontal direction, or may be rotatable in the horizontal direction, in addition to the arm rotating in the vertical direction as described above. Other moving means can be adopted as long as the moving means can be moved between the evacuation position for preventing interference at the time.

[0022]

As is clear from the above description, according to the apparatus for forming a press-fit joint connector according to the present invention and the method for forming a press-fit joint connector using the apparatus, a specific electric wire to be used for press-contacting a press-fit joint connector is provided. The draw-out dimension can be made as short as possible. For this reason, when the press-fit joint connector is fixed along the trunk of the wire harness, it is possible to prevent the wire harness from increasing in diameter due to the extra length of the drawn out electric wire, and the fixing work also requires an extra length. Is simplified, and thus the workability can be improved. Further, since there is no need to provide a press contact pedestal surface for each drawing board, equipment costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an apparatus for forming a press-fit joint connector of the present invention.

FIG. 2 is a side view of a main part.

FIGS. 3A to 3D are work process diagrams showing a method of forming a press-fit joint connector.

FIGS. 4A and 4B are views showing a process of fixing a press-fit joint connector to a main line.

FIG. 5A is an exploded perspective view of a press-fit joint connector, and FIG. 5B is a cross-sectional view showing a state where electric wires are connected.

6 (A) to 6 (E) are work process diagrams showing a conventional method for forming a press-fit joint connector.

[Description of Signs] 10 Apparatus for forming press-welding joint connector 11 Case body 11a Press-connecting terminal 11b Lid 11c Electrical connection member 12 Drawing board 13 Press-press press pedestal surface 14 Wire holding jig 15 Press-press machine 16 Lid closing machine 17 Truck 18 Conveyor 19 Frame 20 Temporary holding jig 21 Arm W / H Wire harness WA Trunk line We Specified electric wire

Claims (2)

[Claims] 1. A plurality of drawing boards for assembling a wire harness are conveyed by a conveyor in a state of being arranged side by side, and a conveyor mounting frame is erected along a conveying path of the drawing boards and mounted on the drawing board. An apparatus for forming a press-fit joint connector provided in a wire harness assembling apparatus for assembling a wire harness while laying wires with the provided wire holding jig, wherein the wire held by the wire holding jig in the drawing plate is provided. A temporary holding jig for temporarily placing the case body of the pressure welding joint connector adjacent to the main line of the harness is erected on the drawing board, while the other end of the arm provided with a pressure welding press base at the end of the frame is attached to the frame. It is rotatably supported, and the pedestal surface for the press contact press is rotatable to a position above the main line, and further,
An apparatus for forming a press-connecting joint connector, wherein a press-connecting press machine and a lid closing machine of a press-connecting connector are suspended from the frame so as to be able to descend, and can be positioned above the pedestal surface for the press-connecting press. 2. A method of forming a press-fit joint connector using the press-connect joint connector forming apparatus according to claim 1, wherein the case body of the press-fit joint connector temporarily placed on the temporary holding jig is provided. After inserting the wire for the pressure welding joint drawn out from the wire harness main line, rotate the arm to position it above the main line held by the wire holding jig, After transferring the case body of the press-connecting joint connector, and then lowering the press-connecting press machine, after pressing the electric wire to the press-connecting terminal in the case body of the press-connecting joint connector,
Raise the crimping press machine and lower the lid closing machine, attach the lid to the case body and assemble the crimping joint connector, and then remove the crimping joint connector assembled from the crimping press pedestal surface and position it directly below. A method for forming a press-fit joint connector that is tape-fixed to a main wire held by the wire holding jig.