JP6738864B2 - Work board - Google Patents

Description

TECHNICAL FIELD The present invention relates to a work board for manufacturing a wire harness using a subassembly having a plurality of electric wires to which connecting parts such as a connector and a connecting terminal are attached.

In the manufacturing process of a wire harness in which connectors are connected to both ends or the middle part of multiple wires, the wire harness satisfies the required specifications before packing the finished wire harness that has undergone all the manufacturing processes. It is inspected whether or not it is.

In this inspection process, for example, a continuity inspection that inspects whether the connection between the connectors of the wire harness is correct by the presence or absence of continuity, a visual inspection that inspects the type and mounting state of the exterior parts of the wire harness, the presence of damage, etc. Done.

Among these inspections, the continuity inspection needs to inspect continuity and open between the terminals of all the connectors in order to surely find a connection mistake between the electric wire and the terminals of the connector during assembly.

Generally, in the continuity inspection of a wire harness, an automatic inspection technique using a computer is used. This automatic inspection technology compares the input/output results of electrical signals for each wire of the wire harness to be inspected with the correct connection information of the wire harness to be inspected, and based on the comparison result, determines whether or not the connection between the connector pins is appropriate. This is a determination technique (see, for example, Patent Document 1).

In Patent Document 1, the inspection device for inspecting the continuity between the connectors of the wire harness is provided with a connector connecting portion, and the continuity inspection is performed by directly connecting the connector of the wire harness to the connector connecting portion. It was

Further, the continuity inspection for the wire harness may be performed in an inspection area arranged beside a manufacturing line for manufacturing the wire harness during the wire harness manufacturing process (for example, refer to Patent Document 2).

JP, 2014-206394, A JP, 2017-188237, A

By the way, in Patent Document 1, the connector of the wire harness must be directly connected to the inspection device, and the inspection of the continuity of the wire harness is performed in the manufacturing system, for example, on the work board. It was carried out after the assembly and production of the harness. On the other hand, there is a demand to streamline the wire harness manufacturing work by conducting the wire harness inspection (in-line) in the wire harness manufacturing system, which was conventionally performed after the wire harness manufacturing process. It was

Then, this invention is made|formed in view of the said subject, and it aims at providing the work board which enables the continuity inspection of a wire harness during the manufacturing process of a wire harness.

In order to solve the above problem, a work board for manufacturing a wire harness using a subassembly having a plurality of electric wires to which a connecting component is attached, and inspection wiring for continuity inspection of the wire harness is connected. An inspection jig is provided, and the connection component of the subassembly is connected to the inspection jig.

Further, it is preferable that the inspection jig has a release mechanism that releases a mechanical connection state with the connection component.

It is preferable that a plurality of the inspection jigs are provided, a terminal block connectable to the device for the continuity inspection is provided, and the inspection wiring is connected to the terminal block.

Further, it is preferable that a gripping jig that grips the wire harness is provided, and the gripping jig has a release mechanism that releases the gripped state of the wire harness.

According to the work board according to the present invention, it is possible to perform the continuity inspection of the wire harness during the manufacturing process of the wire harness.

It is a perspective view which shows schematically an example of the wire harness manufactured. It is a figure which shows schematically the subassembly used for manufacture of a wire harness. It is a schematic diagram for explaining the composition of the manufacturing system of a wire harness. It is a schematic diagram for explaining the composition of a circulation type conveyor. It is a schematic perspective view for demonstrating the structure of a work board. It is a figure for demonstrating the structure of the jig provided in the work board. It is a figure for demonstrating the structure of the jig provided in the work board. It is a schematic perspective view for explaining the structure of the standing means. It is a figure for demonstrating the structure of the mounting part of a wiring processing apparatus. It is a figure showing composition of a wire harness inspection system provided with an inspection device.

A preferred embodiment of the present invention will be described with reference to the drawings. It should be noted that the embodiment described below is merely an example, and various embodiments can be taken within the scope of the present invention.

FIG. 1 is a diagram schematically showing an example of a wire harness manufactured. FIG. 2 is a diagram schematically showing a subassembly used for manufacturing a wire harness. FIG. 3 is a schematic diagram for explaining the configuration of the wire harness manufacturing system. FIG. 4 is a schematic diagram for explaining the configuration of the circulation type conveyor. FIG. 5 is a schematic perspective view for explaining the configuration of the work board. FIG. 6 is a diagram for explaining the configuration of the connector jig provided on the work board. FIG. 7 is a diagram for explaining the configuration of the clamp jig provided on the work board. FIG. 8 is a schematic perspective view for explaining the configuration of the standing means. FIG. 9 is a diagram for explaining the configuration of the mounting portion of the wiring processing device. FIG. 10 is a diagram showing a configuration of a wire harness inspection system including an inspection device.

For convenience of explanation, the length direction of the manufacturing system (also referred to as “conveyance direction”) is “L”, the upstream side is “A”, and the downstream side is “B”. Further, the width direction of the manufacturing system is "W", the left side when viewed from the upstream side A to the downstream side B is "C", and the right side is "D". Further, the vertical direction of the manufacturing system is "H", the upper side is "E", and the lower side is "F".

<Production system configuration>
The manufacturing system 100 according to the present embodiment is, for example, a manufacturing apparatus that manufactures the wire harness 1 applied to an automobile. The wire harness 1 manufactured by the manufacturing system 100 is used for supplying electric power to various electric devices mounted on an automobile, communication between the electric devices, and the like.

As shown in FIGS. 1 and 2, the wire harness 1 is formed by a subassembly 11. The subassembly 11 has a plurality of electric wires 12 with terminals, and a plurality of connectors 13 provided at the ends of the electric wires 12 and connected to various electric devices. The wire harness 1 is formed by bundling the electric wires 12 with each other by an exterior component 14 such as a grommet, a protective material, a tape, and a binding band. Each of the electric wires 12 is arranged so as to have a predetermined bent shape, and the wire harness 1 as a whole is deployed in a complicated branched structure (branched shape). Note that the connector 13 is an example of a connection component, and for example, a case where the connection component is a connection terminal or the like is also included in the example of the embodiment.

The wire harness 1 is manufactured by performing a predetermined process stepwise on the subassembly 11 in the plurality of process sections 2. Here, the “processing” includes a series of operations until the wire harness 1 is manufactured, for example, assembling of the wire harness 1 and a predetermined inspection for the wire harness 1. This includes the process of carrying out the wire harness 1 from the system 100.

As shown in FIG. 3, the manufacturing system 100 for manufacturing the wire harness 1 includes a plurality of processing sections 2 for manufacturing the wire harness 1, a transporting device 3 provided along all the processing sections 2, and a predetermined processing section 2. In the processing section 2, the wiring processing apparatus 4 for arranging the subassembly 11 in a branched shape, the imaging apparatus 5 for imaging the wire harness 1 in the predetermined processing section 2, and the wire harness 1 in the predetermined processing section 2 And a continuity inspection device 6 for performing continuity inspection.

[Processing section]
The processing section 2 is located on a downstream side B of the supply section 21 in the transport direction L and a supply section 21 for supplying a work board 31 to be described later, and a wiring section for mounting the subassembly 11 on the work board 31. 22 and a first finishing section 23 located on the downstream side B of the wiring section 22 and twisting together the electric wires 12 of the subassembly 11, and a first finishing section 23 located on the downstream side B of the first finishing section 23 and twisted. The second finishing section 24 for bundling the plurality of electric wires 12 and the downstream section B of the second finishing section 24 for inspecting the wire harness 1 and the downstream section B of the inspection section 25 for inspecting the wire harness 1. The carrying-out section 26 for carrying out the manufactured wire harness 1 from the manufacturing system 100 to another process.

The supply section 21, the wiring section 22, the first finishing section 23, the second finishing section 24, the inspection section 25, and the carry-out section 26 (hereinafter, also referred to as “processing sections 21 to 26” and the like) are along the transport device 3. Are arranged in the order of manufacturing process of the wire harness 1.

[Conveyor]
As shown in FIG. 4, the transport device 3 is formed as a circulation type conveyor that circulates in the vertical direction H (hereinafter, also referred to as “circulation type conveyor 3”). The circulating conveyor 3 includes a number of work boards 31 corresponding to the processing sections 21 to 26, a conveying means 32 for sequentially conveying the work boards 31 to the respective processing sections 21 to 26, and a standing means 33 for raising and lying down the work boards 31. And drive means (not shown) for intermittently driving the transport means 32, and control means (not shown) for controlling the drive means.

(Work board)
The work board 31 is formed of a plate material having a rectangular shape in plan view, and the subassembly 11 is deployed and arranged along a predetermined wiring route, and the subassembly 11 is processed in the processing sections 22 to 25. It is a stand for assembling the wire harness 1 and is also called an ASSY board. In the horizontal state on the transport means 32, the work board 31 has a plurality of processing sections 21 to 26 with the work surface 31a, which is a surface on which the manufacturing process for manufacturing the wire harness 1 is performed, facing the upper side E. It is placed on the transport means 32 so as to be sequentially transported along.

The “horizontal state” also includes a state in which the work system 31 is laid on the circulating conveyor 3 to the extent that the work plate 31 can be approached from both left and right CDs in the manufacturing system 100 (hereinafter, “substantially horizontal state”). Also called).

As shown in FIG. 5, a predetermined wiring route (not shown) of the subassembly 11 is printed on the work surface 31a of the work board 31 on which the subassembly 11 is placed. .. The work board 31 has a plurality of jigs 36 for holding the subassembly 11 placed along the wiring route, and a collective terminal block (terminal block) 37.

The jig 36 is erected on the work surface 31a. The jig 36 includes a catch jig 361 on which the subassembly 11 is hung by the wiring processing device 4, a connector jig (inspection jig) 362 electrically connected to the connector 13, and the wire harness 1. A clamp jig (grasping jig) 363 that grips the component 14 and a support jig 364 that supports the wire harness 1 on the electric wire 12 are provided. The catch jig 361 and the connector jig 362 are arranged close to each other. The number of jigs 361 to 364 is not particularly limited. Further, the catch jig 361 and the connector jig 362 have a clear correspondence relationship with each other, and when the connector 13 is attached to the connector jig 362, the shape of the wire harness 1 to be manufactured does not change, and The catch jig 361 and the connector jig 362 may be appropriately separated from each other as long as the wire 12 is not subjected to an excessive load due to tension.

The catch jig 361 includes a rod-shaped member 361a and two forked leg portions 361b. One end of the rod-shaped member 361a is attached to the work surface 31a, and the other end has a leg 361b. The subassembly 11 is hung on the leg 361b. The bifurcated leg portions 361b are in contact with each other at their tip portions on the side opposite to the rod-shaped member 361a to form an annular closed state, and both leg portions 361b are elastically openable and closable. There is.

As shown in FIG. 6, the connector jig 362 is provided near the catch jig 361. The connector jig 362 has a rod-shaped member 362a and a substantially rectangular parallelepiped connector portion 362b. One end of the rod member 362a is attached to the work surface 31a, and the other end has a connector portion 362b. The connector 13 of the subassembly 11 is mechanically and electrically connected to the connector portion 362b. The connector portion 362b includes a concave fitting opening portion 362c into which the connector 13 of the subassembly 11 is fitted, a locking claw 362d that locks the connector 13 housed in the fitting opening portion 362c, and a release mechanism (not shown). No.) and the inspection wiring 362e.

The fitting opening portion 362c is formed on one surface of the connector portion 362b in a direction along the work surface 31a of the work board 31 in a state where the connector jig 362 is attached to the work board 31. Inside the fitting opening 362c, a plurality of conduction pins (not shown) that are electrically connected to the connector 13 are provided.

The locking claw 362d is provided on the peripheral portion of the fitting opening 362c and is configured to be movable back and forth with respect to the fitting opening 362c. The locking claw 362d engages with the connector 13 housed in the fitting opening 362c to prevent the connector 13 from falling off the fitting opening 362c when the release mechanism is not operating. The tip overlaps the portion 362c. The locking claw 362d is designed so that the tip of the locking claw 362d and the fitting port 362c do not overlap each other when the release mechanism is operating.

The release mechanism includes an air cylinder (not shown) that releases the engagement between the locking claw 362d and the connector 13. One end of the air cylinder is directly or indirectly connected to the locking claw 362d, and the other end supplies compressed air on the back surface 31b side which is the back surface of the work surface 31a, for example, to a compressor. It is connected.

The inspection wiring 362e is connected to each conduction pin on the side opposite to the side where the connector 13 of the connector portion 362b is inserted. The inspection wiring 362e from the connector jig 362 is connected to a collective terminal block 37 described later.

As shown in FIG. 7, the clamp jig 363 has a rod-shaped member 363a and a clamp member 363b. One end of the rod member 363a is attached to the work surface 31a, and the other end of the rod member 363a has a clamp member 363b. The clamp member 363b grips the exterior component 14. The clamp member 363b includes a holding recess 363c that holds the exterior component 14, a movable cover 363d that covers the holding recess 363c, and a release mechanism (not shown) that moves the cover 363d.

The holding recess 363c is open on one surface of the clamp member 363b in the direction along the work surface 31a of the work board 31 and on the side opposite to the work surface 31a. The cover portion 363d is configured to be slidable in a direction along the work surface 31a of the work board 31, covers the holding recess 363c when the release mechanism is not operating, and holds the holding recess 363c when the release mechanism is operating. Is opened toward the side opposite to the work surface 31a.

The release mechanism has an air cylinder (not shown) that moves the cover portion 363d from a position that covers the holding recess 363c to a position that opens the holding recess 363c. One end of the air cylinder is directly or indirectly connected to the cover portion 363d, and the other end supplies compressed air on the back surface 31b side which is the back surface of the work surface 31a, for example, is connected to a compressor. Has been done. The compressor to which the air cylinder of the clamp jig 363 and the air cylinder of the catch jig 361 are connected may be the same compressor or another compressor.

The support jig 364 has a rod-shaped member 364a and two forked leg portions 364b. One end of the rod-shaped member 362a is attached to the work surface 31a, and the other end has a leg portion 364b. The electric wire 12 is hung on the leg portion 364b.

Returning to FIG. 5, the work board 31 has a collective terminal block 37 on the work surface 31a side. The inspection wiring 362e of the connector jig 362 is connected to the collective terminal block 37. The collective terminal block 37 has a fitted portion (not shown), and can be connected to the continuity inspection device 6 described later in the fitted portion.

The work board 31 has a hole portion 31c formed in the vicinity of the rod-shaped member 362a of the connector jig 362 so as to penetrate in the thickness direction of the work board 31. The inspection wiring 362e connected to the connector portion 362b of the connector jig 362 is passed through the hole 31c to the rear surface 31b side. Further, the work board 31 has a hole portion 31 d formed in the vicinity of the collective terminal block 37 so as to penetrate in the thickness direction of the work board 31. Through the hole 31d, the inspection wiring 362e, which is passed through the back surface 31b, is passed through the work surface 31a and is connected to the collective terminal block 37.

(Transportation means)
Returning to FIG. 3 and FIG. 4, after the transport means 32 sequentially transports the work board 31 from the upstream side A to the downstream side B in the forward transport path which is the transport path along the plurality of devices 4, 5, 6, In order to return the work board 31 from the downstream side B to the upstream side A in the multi-transport path which is the transport path on the lower side F of the forward transport path, the forward transport section 321, the descending transport section 322, the return transport section 323, And an ascending conveyance section 324. The outward transport section 321, the descending transport section 322, the returning transport section 323, and the ascending transport section 324 are continuous with each other, and are configured to circulate in the work board 31 in the up-down direction H.

The outward transport section 321 extends along the processing sections 21 to 26 so as to sequentially transport the work board 31 from the supply section 21 to the carry-out section 26 in the transport direction L. The outward transport unit 321 supports the work board 31 on the back surface 31b side, and sequentially transports the work board 31 from the processing section on the upstream side A to the processing section on the downstream side B.

The descending transport unit 322 transports the work surface 31a of the work board 31 from the unloading section 26 to the return transport unit 323 provided at a predetermined interval on the lower side F of the forward transport unit 321 with the work surface 31a facing the upper side E. As described above, the outward transport section 321 extends from the end portion on the unloading section 26 side to the lower side F to the return transport section 323.

The return transport unit 323 extends from the lower end of the descending transport unit 322 to the supply section 21 so as to return the work board 31 to the supply section 21. The return transport unit 323 extends in parallel to the forward transport unit 321 on the lower side F with a predetermined interval.

The ascending conveyance section 324 conveys the work board 31 from the return conveyance section 323 to the forward conveyance section 321 with the work surface 31a facing the upper side E, from the end of the return conveyance section 323 on the supply section 21 side. The upper side E is formed so as to extend to the outward transport section 321.

If the work board 31 is detachably fixed to each of the transport sections 321 to 324, the work board 31 is moved by the transport means 32 so that the work surface 31a of the work board 31 faces the lower side F in the return transport section 323. It may be transported.

(Standing means)
The erecting means 33 is provided in the predetermined processing sections 21 to 26 in the forward transport section 321 of the transporting means 32, and more specifically, is provided in the wiring section 22 for the wiring processing apparatus 4 described later. ing. The upright means 33 places the work board 31 in a substantially horizontal state such that one edge of the work board 31 extending along the transport direction L of the work board 31 is in an upright state in which the one edge is positioned above the other edge E. The work board 31 is set in a substantially horizontal state from the standing state.

As shown in FIG. 8, the standing means 33 includes a steel frame 331 surrounding the edge of the work board 31, a gripping body 332 that is provided on the frame 331 and holds at least a part of the edge of the work board 31, A drive shaft 333 that is connected to the frame 331 and rotates the frame 331.

The frame 331 has three first frame portions 331a extending in the lengthwise direction L at a predetermined interval, and a pair of second frame portions 331b connecting the first frame portions 331a to each other at their end portions. The intermediate first frame portion 331a of the three first frame portions 331a is the first frame located on the lower side F with respect to the intermediate portion in the extending direction of the second frame portion 331b when the frame 331 stands up. It is provided near the portion 331a. In the frame 331, a space 331c surrounding the work board 31 is formed by the first frame portion 331a located on the upper side E in the state where the frame 331 is erected, the intermediate first frame portion 331a, and the second frame portion 331b. Well defined.

A plurality of connecting portions 334 for connecting the frame 331 to the drive shaft 333 are provided between the first and second frame portions 331a on the middle and lower sides F. Each connecting portion 334 has an arm portion 335 attached at one end so as to be substantially perpendicular to the connecting portion 334. The other end of the arm portion 335 is fixed to the drive shaft 333 so as not to rotate relative to the drive shaft 333.

A plurality of gripping bodies 332 are provided at predetermined intervals in the first frame portion 331a on the upper side E and in the middle so as to grip the edge portion extending along the length direction L of the work board 31.

The drive shaft 333 is integrally connected to the other end of the arm portion 335 of the connecting portion 334 such that the rotation is impossible, and one end of the drive shaft 333 is, for example, a motor (not shown). Is connected to a drive device such as.

In the erection means 33, the drive shaft 333 rotates so that the frame 331 can be moved toward and away from the outward transport section 321. Specifically, the frame 331 is laid on the forward transport section 321. The drive shaft 333 can freely rotate between the opened state (substantially horizontal state) and the state of standing upright with respect to the outward transport section 321 (standing state). The frame 331 is 0 to 60°, preferably 0 to 90°, more preferably 0° to 120° from the substantially horizontal state when the substantially horizontal state laid on the outward transport section 321 is 0°. It rotates within the range of.

(Drive means and control means)
The driving means is, for example, an actuator such as a motor that drives the transport means 32, specifically, the forward transport section 321, the descending transport section 322, the return transport section 323, and the upward transport section 324 in an interlocking manner. .. The control means is, for example, a processing device that processes a program such as an MCU, and instructs the drive means on the drive timing.

[Wiring processor]
The wiring processing device 4 is provided on the left side C in the width direction W with respect to the circulation type conveyor 3 in the wiring section 22. The wiring processing device 4 includes a multi-axis and multi-joint type main body portion 41, and a mounting portion 42 that is attached to the tip of the main body portion 41 and attaches the subassembly 11 on the work board 31. For the main body 41, for example, a known 6-axis articulated robot can be used. The wiring processing device 4 may be provided on the right side D in the width direction W with respect to the circulation type conveyor 3 in the wiring section 22.

As shown in FIG. 9, the mounting portion 42 has a holding member 43 and a sliding member 44. The holding member 43 is a member which is attached to the main body 41 and holds the sliding member 44 and which is substantially rectangular in a plan view. A plurality of sliding members 44 are provided at predetermined intervals along the longitudinal direction of the holding member 43, and are attached to the holding member 43 slidably in the lateral direction. The sliding member 44 has a grip body 45 for gripping the connector 13 of the subassembly 11 at an end portion facing outward in the lateral direction.

The subassembly 11 placed by the wiring processing device 4 on the work board 31 is a subassembly assembly device 200 (see FIG. 3) that is arranged near the manufacturing system 100 and automatically assembles the subassembly 11. )). After the wiring processing device 4 approaches the subassembly assembly device 200 and grips each connector 13 of the subassembly 11 by the gripping body 45 in each sliding member 44, the wiring processing device 4 operates on the work board 31. Wiring processing is carried out in which the subassembly 11 is unfolded and placed on the wiring path. Here, instead of the wiring processing device 4 approaching the subassembly assembly device 200 and gripping the subassembly 11, a part of the subassembly assembly device 200 moves and the wiring processing device 4 is partially assembled. The article 11 may be passed, or the subassembly assembling apparatus 200 itself may have the function of the wiring processing apparatus 4.

[Imaging device]
Returning to FIG. 3, the imaging device 5 is, for example, a camera that takes an image to inspect the appearance of the wire harness 1 manufactured in the second finishing section 24, for example, the appearance of the specific exterior component 14. The imaging device 5 is located at a position facing the work surface 31a of the work board 31 in the inspection section 25, that is, the upper side E in the vertical direction H, and the left side C and the right side with respect to the circulation conveyor 3 in the width direction W. A plurality of them are provided on the side D along the outward transport section 321. The imaging device 5 may be provided in a section other than the inspection section 25.

The inspection section 25 is provided with a display device 51 such as a display for displaying an image of the wire harness 1 captured by the image capturing device 5.

[Continuity inspection device]
The continuity inspection device 6 is a device that inspects the continuity of the wire harness 1 manufactured in the second finishing section 24. The continuity inspection device 6 is provided on the left side C or the right side D with respect to the circulation type conveyor 3 in the inspection section 25. As shown in FIG. 10, the continuity inspection device 6 has an input/output unit (connection fitting unit) 61 that is electrically connected to the fitted portion of the collective terminal block 37 of the work board 31. The input/output unit 61 is automatically connected to the collective terminal block 37.

The input/output unit 61 is a functional unit for electrically connecting an internal circuit (not shown) of the continuity inspection device 6 and the wire harness 1 on the work board 31. For example, the input/output unit 61 has a plurality of connector pins 611 and a signal wiring 612 for electrically connecting each connector pin 611 and the internal circuit of the continuity inspection device 6. For example, by fitting the connector pin 611 of the input/output unit 61 to the collective terminal block 37, the input/output unit 61 and each terminal of the collective terminal block 37 are electrically connected. As a result, the wire harness 1 to be inspected, which is connected to the connector jig 36 of the work board 31, and the internal circuit of the continuity inspection device 6 are electrically connected.

<Wire harness manufacturing process>
Next, a manufacturing process of the wire harness 1 in the manufacturing system 100 will be described. The method for manufacturing the wire harness 1 by the manufacturing system 100 is carried out on the circulation type conveyor 3, the work board 31 in a state of being laid up in a substantially horizontal state is raised, and the subassembly 11 is mounted on the work board 31 in the standing state. At least the step of placing the wire harness 1, the step of performing an image inspection of the wire harness 1, and the step of performing a continuity inspection of the wire harness 1.

In the manufacturing system 100, the circulation type conveyor 3 is provided with a number of work boards 31 corresponding to the respective processing sections 21 to 26, and the respective manufacturing processings are simultaneously performed in the respective processing sections 21 to 26. The circulating conveyor 3 is intermittently drive-controlled by the drive means and the control means so that the work board 31 stays in each of the processing sections 21 to 26 for a predetermined time by the control means of the transfer device 3. For convenience of description, the manufacturing process in each of the processing sections 21 to 26 will be described below in the order of the processing sections 21 to 26.

First, in the supply section 21, the work board 31 on which the subassembly 11 is not mounted is supplied. The manufacturing process of the wire harness 1 in the manufacturing system 100 starts from the supply section 21. The work board 31 is laid down and conveyed in a substantially horizontal state, and the work surface 31 a of the work board 31 faces the upper side E in the vertical direction H. When the supply of the work board 31 is completed, a signal indicating that the work is completed is transmitted from the supply section 21 to the control means.

When the work board 31 is conveyed from the supply section 21 to the wiring section 22 by the circulation type conveyor 3, the standing means 33 is at a position where the frame 331 does not interfere with the conveyance of the work board 31. Specifically, the frame 331 of the standing means 33 is slightly raised to the left side C in the width direction W. When the work board 31 is conveyed to the wiring section 22, the frame 331 of the standing means 33 rotates about the drive shaft 333 so as to approach the work board 31.

The frame 331 rotates until the work board 31 is housed in the space 331c (until the frame 331 is in a substantially horizontal state), and the outer edge portion of the work board 31 extending along the transport direction L is partially grasped. The body 332 grips. When the work board 31 is gripped by the gripping body 332, one edge portion of the work board 31 extending along the transport direction L of the work board 31, for example, an edge portion on the right side D in the width direction W, is moved in the vertical direction. The work board 31 is lifted up at the upper side E in H and toward the left side C in the width direction W. As a result, the standing means 33 sets the work board 31 to the standing state in which the working board 31 is raised by about 90° from the substantially horizontal state. In the upright state, the work surface 31a of the work board 31 faces the left side C.

At the same time as the above-mentioned work of the standing means 33, the wiring processing device 4 goes to the subassembly assembly device 200 for the subassembly 11. In the wiring processing device 4, the sliding member 44 that holds the connector 13 of the subassembly 11 advances from the holding member 43. When the grippers 45 of the corresponding sliding members 44 grip the connectors 13 of the subassembly 11 from the subassembly assembling apparatus 200, except the sliding member 44 that grips the connector 13 first mounted on the work board 31. The sliding member 44 is retracted toward the holding member 43 side.

The main body 41 approaches the work board 31 in the upright state, and the sliding member 44 in the state of advancing from the holding member 43 mounts the connector 13 of the subassembly 11 on the work surface 31 a of the work board 31. Hook it on the catch jig 361. When the grip body 45 releases the connector 13, the sliding member 44 retracts to the holding member 43 side, and then the sliding member 44 that grips the connector 13 hooked on the catch jig 361 advances from the holding member 43. The wiring processing device 4 attaches each connector 13 of the subassembly 11 to each catch jig 361 according to the wiring route on the work board 31, and attaches the connector 13 of the subassembly 11 to the work board 31. Expand to (form a branch shape).

When the wiring work of the subassembly 11 on the work surface 31a of the work board 31 by the wire arrangement processing device 4 is completed, the standing means 33 tilts the frame 331 until the work board 31 becomes substantially horizontal. Next, the gripping body 332 of the frame 331 releases the work board 31, and the work board 31 is placed again on the forward path transport unit 321 of the circulation type conveyor 3. When the work board 31 is laid again in the substantially horizontal state, a signal indicating that the work is completed is transmitted from the wiring section 22 to the control means. When the work board 31 is transported from the wiring section 22 to the first finishing section 23, the frame 331 is moved to a position that does not interfere with the transport of the work board 31.

In the first finishing section 23, the worker removes the connector 13 of the subassembly 11 from the catch jig 361 and inserts the connector 13 into the fitting opening 362c of the connector portion 362b of the corresponding connector jig 362. .. When the connector 13 is inserted into the fitting opening 362c of the connector jig 362, the locking claw 362d is pushed down to the work surface 31a side of the work board 31. When the mechanical connection between the connector 13 and the connector jig 362 is achieved, the locking claw 362d returns to the original position, that is, the position where the tip overlaps with the fitting opening 362c. As a result, the locking claw 362d engages with the connector 13 from the rear end side in the insertion direction of the fitting opening 362c.

Further, in the first finishing section 23, the electric wires 12 of the subassembly 11 arranged on the work board 31 are twisted together, and the electric wires 12 are placed between the leg portions 364 b of the support jig 364. When the work in the first finishing section 23 is completed, a signal indicating that the work is completed is transmitted from the first finishing section 23 to the control means. The work in the first finishing section 23 may be performed by a dedicated device regardless of the worker.

In the second finishing section 24, for example, an operator attaches the exterior part 14 to the twisted electric wires 12 to bundle the electric wires 12 together to finish the subassembly 11 into the wire harness 1. In the second finishing section 24, the worker shifts the cover portion 363d of the clamp jig 363 and stores the exterior component 14 in the holding recess 363c. The cover portion 363d automatically returns to the position that covers the holding recess 363c.

In the second finishing section 24, the worker further attaches a product number label such as a bar code or a QR code (registered trademark) to the wire harness 1. By reading the product number label, the inspection contents to be performed in the inspection section 25 are transmitted to the imaging device 5 and the continuity inspection device 6. The product number label may be attached to the wire harness 1 in the first finishing section 23.

When the work in the second finishing section 24 is completed, a signal indicating that the work is completed is transmitted from the second finishing section 24 to the control means. The work in the second finishing section 24 may be performed using a dedicated device regardless of the worker.

In the inspection section 25, first, the image inspection of the wire harness 1 is performed. Specifically, the imaging device 5 photographs the appearance of the wire harness 1, for example, the appearance of the specific exterior component 14 from the upper side E, the left side C, and the right side D. The image captured by the imaging device 5 is displayed on the display device 51. The displayed image of the wire harness 1 is determined by a worker whether or not a predetermined criterion is satisfied. Note that the image determination work may be performed using AI or the like regardless of the worker. The imaging device 5 may be movably installed. By making the imaging device 5 movable, it is possible to more effectively prevent interference with a worker, reduce the number of imaging devices 5, and the like.

When the image inspection is completed, the continuity inspection of the wire harness 1 is performed. The continuity inspection is performed by automatically fitting the connector pins 611 of the input/output unit 61 of the continuity inspection device 6 to the fitted portions of the collective terminal block 37 of the work board 31.

When the image inspection and the continuity inspection are completed, the inspection section 25 transmits a signal indicating that the work is completed to the control means. The connection between the connection fitting portion of the continuity inspection device 6 and the collective terminal block 37 may be performed by a worker. The order of the image inspection and the continuity inspection is not particularly limited, and the image inspection may be performed after the continuity inspection, or the image inspection and the continuity inspection may be performed at the same time.

In the carry-out section 26, the connection state between the connector 13 of the wire harness 1 and the connector portion 362b of the connector jig 362 of the work board 31 and the clamp member 363b of the outer jig 14 of the wire harness 1 in the clamp jig 363 is used. The gripped state is first released.

Specifically, the other ends of the air cylinders of the connector jig 362 and the clamp jig 363 are connected to compressed air. When compressed air is supplied from the compressor to the air cylinder of the release mechanism of the connector jig 362, the locking claws 362d are lowered to the work surface 31a side of the work table 31 and further compressed by the air cylinder of the release mechanism of the clamp jig 363. When compressed air is supplied from the machine, the cover portion 363d is displaced from the holding recess 363c, and the gripped state of the exterior component 14 of the wire harness 1 is released. It should be noted that the release of the wire harness 1 from the connector jig 362 and the clamp jig 363 may be performed at the same time, or the connector jig 362 and the clamp jig 363 may be assigned an order, and the release may be performed based on the order. Good.

Since the locking claw 362d is lowered toward the work surface 31a, the engagement state (mechanical connection state) between the locking claw 362d and the connector 13 is canceled, and the connector 13 of the wire harness 1 is It falls off from the fitting opening 362c of the connector jig 362 by its own weight. Further, when the gripped state of the exterior component 14 of the wire harness 1 is released, the exterior component 14 of the wire harness 1 is disengaged from the clamp member 363b of the clamp jig 363 by the weight of the wire harness 1. As a result, the wire harness 1 falls on the work surface 31a. Next, the work board 31 is inclined from the substantially horizontal state to one side in the width direction W, for example, the left side C, and the wire harness 1 is unloaded from the circulating conveyor 3, specifically from the manufacturing system 100. When the carry-out of the wire harness 1 is completed, a signal indicating that the work is completed is transmitted from the carry-out section 26 to the control means.

When the control means receives the signal indicating that the work is completed from each of the processing sections 21 to 26, the control means transmits the signal to the driving means. The drive means that receives the signal from the control means conveys the work board 31 of the treatment sections 21 to 25 to the treatment section arranged on the downstream side B and the work board 31 of the treatment section 26 to the return path transport unit 323. The transport means 32 is driven in this manner. The transport of the work board 31 in the processing sections 21 to 26 is carried out on condition that all the manufacturing processes in the processing sections 21 to 26 are completed. That is, if there is even one manufacturing process that is not completed in the processing sections 21 to 26, the work board 31 is not transported along the transport direction L.

All the manufacturing processes in the processing sections 21 to 26 are simultaneously performed in parallel, and the manufacturing process of the wire harness 1 is completed by passing through all the processing sections 21 to 26. The carried-out wire harness 1 is carried to the next process of the manufacturing process, for example, the packing process.

The work board 31 to which the wire harness 1 has been carried out is moved from the forward transfer section 321 to the lower side F by the lower transfer section 322, then to the upstream side A by the return transfer section 323, and finally to the upper transfer section 324. Is transported to the upper side E and returned to the forward transport section 321.

<Characteristics of work board>
In the conventional wire harness manufacturing system, the manufactured wire harness is moved to an inspection area provided at a location distant from the wire harness manufacturing area, and a continuity test or the like is separately performed. On the other hand, the work board 31 as described above has the connector jig 362 for inspecting the continuity of the wire harness 1 and the inspection wiring 362e, so that the wire harness is provided on the same line (inline) in the manufacturing system 100. It is possible to carry out the continuity inspection of No. 1 and work efficiency can be significantly improved.

The work board 31 is provided with a plurality of connector jigs 362, and the inspection wiring 362e extending from each connector jig 362 is connected to a common collective terminal block 37. Thus, by simply connecting the connector pin 611 of the continuity inspection device 6 to the fitted portion of the collective terminal block 37, the continuity inspection between the plurality of connectors 13 of the wire harness 1 on the work board 31 can be performed very easily. You can

In the work board 31, the connector jig 362 has an air cylinder as a release mechanism for releasing the connection state with the wire harness 1, and the clamp jig 363 has an air cylinder as a release mechanism for releasing the gripped state of the wire harness 1. The release mechanism can be connected to a compressor that supplies compressed air. Thus, by supplying compressed air from the compressor to the respective air cylinders, the wire harness 1 can be easily and quickly removed from the connector jig 362 and the clamp jig 363.

<Other>
The present invention is not limited to the above-mentioned embodiments, and can be appropriately modified within the scope of the present invention. For example, the work board 31 can be appropriately changed to a work board 31 having a corresponding wiring path and size according to the type of the wire harness 1 to be manufactured, and the work board 31 is placed on the transporting means 32 of the circulation type conveyor 3. It

In the above embodiment, the circulating conveyor 3 intermittently carries the work board 31 by the carrying means 32, but may carry it continuously. Further, the transport speed of the work board 31 may be variably adjustable. The transfer means 32 may be provided over the entire processing sections 21 to 26, and if the transfer of the work board 31 between the processing sections 21 to 26 is not hindered, the processing sections 21 to 26 are respectively processed. The transport means 32 corresponding to the above may be provided. When the transporting means 32 is individually provided in each of the processing sections 21 to 26, there may be a transporting means 32 on which the work board 31 is not placed (between the work boards 31 on the circulation type conveyor 3). May be temporarily provided with an empty area). As a result, the intermittent operation of the work boards 31 can be made to have a time difference, and the transport speed can be variably adjusted for each work board 31.

In the above-described embodiment, the work board 31 is conveyed in a horizontal state with the work surface 31a facing the upper side E, but the work surface 31a is parallel to the installation surface of the circulating conveyor 3. May be transported to.

In the above-described embodiment, in the circulation type conveyor 3, the work board 31 is carried on the carrying means 32 in a substantially horizontal state, but the carrying means 32 stands up the work board 31 obliquely from the substantially horizontal state. You may convey in the made state.

In the above embodiment, the releasing mechanism for the connector jig 362 and the clamp jig 363 is an air cylinder, but may be a solenoid type actuator or a piezoelectric type actuator.

In the above-described embodiment, the connector portion 362b of the connector jig 362 and the connector 13 of the subassembly 11 are kept engaged with each other via the locking claws 362d. A multi coupler may be provided in the fitting opening 362c and the connector 13 may be fitted into the multi coupler. When the connector 13 is detached from the multi coupler, the air cylinder presses the multi coupler.

In the above embodiment, the first and second finishing sections 23 and 24 are independent processing sections, but they may be integrated into one processing section.

In the above-described embodiment, the return transport section 323 is provided on the lower side F of the forward transport section 321, but may be provided on the upper side E of the forward transport section 321. Further, the circulation type conveyor 3 may be a transfer device formed in a loop shape for transferring the work board 31 on the same plane in the horizontal direction. Further, the outward transfer section 321 and the return transfer section 323 may extend linearly or may extend, for example, meandering and bending in the middle.

The work surface 31a or the back surface 31b of the work board 31 in the above-described embodiment may have a test check wire harness connectable to the continuity inspection device 6. In this case, the test check wire harness can be electrically connected to the collective terminal block 37.

100 Manufacturing System 1 Wire Harness 11 Subassembly 12 Electric Wire 13 Connector (Connecting Parts)
3 Circular conveyor 31 Work board 362 Connector jig (inspection jig)
362e Inspection wiring 363 Clamp jig (holding jig)
37 Assembly terminal block (terminal block)
6 Continuity inspection device (device for conducting wire inspection)

Claims (4)

A work board for manufacturing a wire harness using a subassembly having a plurality of electric wires to which connection parts are attached,
An inspection jig to which inspection wiring for continuity inspection of the wire harness is connected,
A work board for manufacturing a wire harness, wherein the connection part of the subassembly is connected to the inspection jig. The work board for manufacturing a wire harness according to claim 1, wherein the inspection jig has a release mechanism that releases a mechanical connection state with the connection component. Equipped with a plurality of inspection jigs,
Equipped with a terminal block connectable to the device for continuity inspection,
The work board for manufacturing a wire harness according to claim 1 or 2, wherein the inspection wiring is connected to the terminal block. A gripping jig for gripping the wire harness,
The work board for manufacturing a wire harness according to any one of claims 1 to 3, wherein the gripping jig has a release mechanism that releases a gripped state of the wire harness.

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