JP2018014218A - System for producing wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness manufacturing system capable of making an operator recognize information assisting each work of manufacturing a wire harness as reliably as possible. SOLUTION: In a wire harness W manufacturing system 100 having an electric wire 1 and a plurality of accessory parts, a holding operation of holding the electric wire 1 so as to form a predetermined wiring shape and the electric wire 1 and a plurality of accessory parts are held. Information that assists the holding work and the assembling work between the workbench 10 for the worker S to perform at least one of the assembling work and the worker S and the workbench 10 in the line of sight of the worker S. The head-mounted display 20 includes a head-mounted display 20 for displaying the above, and the head-mounted display 20 has a camera 22 for photographing the workbench 10 and a display form in which information determined based on the image captured by the camera 22 is displayed along the wiring shape. Alternatively, it has a display 21 that displays in a different display form for each type of accessory part. [Selection diagram] Fig. 1

Description

  The present invention relates to a wire harness manufacturing system having an electric wire and a plurality of accessory parts.

  2. Description of the Related Art Conventionally, when manufacturing a wire harness used for a vehicle or the like, a manufacturing system including a work table (so-called jig plate) for an operator to perform various operations related to the manufacture has been proposed. In this type of work table, a plurality of jigs for holding the electric wire are arranged on the plate surface, and the electric wire has a predetermined wiring shape (in other words, a shape suitable for actual wiring to an automobile). After the work of holding the electric wire using the jig that holds it (holding work), the work of attaching the attached member (for example, corrugated tube, vinyl tape, clamp, etc.) to the electric wire thus held (assembly) Attached work) can be performed.

  For example, one of the conventional wire harness manufacturing systems (hereinafter referred to as “conventional system”) is a two-layer plate in which a projection screen is pasted on a transparent resin plate, and the plate surface of the workbench is formed. Images relating to each of the above operations are projected from the back side of the plate surface (side where no worker is present). The projected image is displayed on the screen, and the operator performs various operations while referring to the image. As described above, the conventional system assists various kinds of work by the worker (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2015-195352

  Incidentally, a plurality of jigs and the like are actually provided on the plate surface of the work table in the conventional system. Therefore, even if an image for assisting the operator is projected on the plate surface (screen), depending on the positional relationship between the operator and the jig, the image is hidden by the jig or the like, and it is difficult for the operator to visually recognize the image. It is thought that there is. Furthermore, as the manufacturing process of the wire harness progresses, the number of electric wires and auxiliary members existing on the workbench also increases, so that images may be hidden behind such electric wires and the operator may be more difficult to see the images. It is believed that there is. Such difficulty in visually recognizing an image is not preferable because it may impair the original effect of assisting the worker.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a wire harness manufacturing system that enables an operator to recognize as much as possible information for assisting each operation of manufacturing a wire harness. , To provide.

In order to achieve the above-described object, a wire harness manufacturing system according to the present invention is characterized by the following (1) to (4).
(1)
A wire harness manufacturing system having an electric wire and a plurality of accessory parts,
A workbench for an operator to perform at least one of a holding operation for holding the electric wire so as to form a predetermined wiring shape and an assembling operation for assembling the electric wire and the plurality of accessory parts, the operator, An auxiliary device that displays information for assisting the holding work and the assembly work between the work table and the field of view of the worker;
The auxiliary device is
An image capturing unit that captures the work table and the information determined based on the image captured by the image capturing unit are displayed in a display form along the routing shape or in a different display form for each type of the accessory part. A display unit;
The manufacturing system for wire harnesses.
(2)
In the manufacturing system according to (1) above,
The auxiliary device is
As the information for assisting the holding work, performing a guidance display extending so as to connect a plurality of jigs arranged on the workbench corresponding to the routing shape in the order of holding the electric wire,
As the information for assisting the assembling work, when the accessory is a connector housing having a plurality of terminal accommodating chambers, a guidance display representing the terminal accommodating chamber into which a terminal is to be inserted is performed. In the case of a tape that bundles the electric wires, a guidance display indicating a position where the tape is wound and a winding pitch length of the tape is performed.
The manufacturing system for wire harnesses.
(3)
In the manufacturing system according to (1) or (2) above,
A collecting unit for collecting images obtained by photographing the holding work and the assembling work by the photographing unit;
The manufacturing system for wire harnesses.
(4)
In the manufacturing system according to any one of (1) to (3) above,
The auxiliary device is
Attached to the worker's body so that the display unit is positioned on the operator's line of sight,
The manufacturing system for wire harnesses.

  According to the wire harness manufacturing system having the configuration (1), information for assisting each operation is displayed between the operator and the work table and in the field of view of the operator. Therefore, compared with the conventional system (a method of projecting information from the back side of the work table), the information is not hidden by a jig or the like on the work table. Furthermore, since information is displayed in a display form according to the wiring shape of the electric wires and a display form that differs for each type of accessory part, the operator can surely recognize the work to be performed.

  Therefore, the manufacturing system of the wire harness of this configuration can make the worker recognize the information for assisting each operation for manufacturing the wire harness as reliably as possible.

  Furthermore, the wire harness manufacturing system of this configuration allows the worker to visually recognize necessary information as much as possible, so that the wire harness can be used regardless of the skill and skill level of the worker compared to the conventional system. It is possible to improve the production speed and production quality of the product more reliably.

  According to the wire harness manufacturing system configured as described in (2) above, when the worker performs the holding operation, if the electric wires are held in the jig in the order indicated by the guidance display, the guidance display is not provided. In comparison, it is possible to easily hold the electric wire so as to form a target wiring shape. Furthermore, when the assembling work is performed, if the terminal is inserted into the terminal accommodating chamber as shown in the guidance display, the electric wire with terminal as designed can be easily manufactured. Further, when the assembly work is performed, if the tape is wound as shown in the guidance display, the tape can be easily wound as designed. Therefore, according to the wire harness manufacturing system of this configuration, the workability of wire harness manufacturing can be improved.

  According to the wire harness manufacturing system having the configuration of (3) above, the manufacturing system can be improved based on the images of each work collected by the collecting unit. For example, if a work with low work efficiency can be identified from the collected images regardless of the worker, measures such as improving the work procedure of the work can be taken. As a result, the wire harness manufacturing system of this configuration can improve the workability of wire harness manufacturing.

  According to the wire harness manufacturing system having the configuration (4), the degree of freedom in designing the assembly line can be increased. Specifically, in the conventional system, it is necessary to always install an apparatus (projector or the like) for projecting an image on the back side of the work table, and there is a possibility that the design flexibility of the assembly line is lowered. However, in the manufacturing system of this configuration, since the auxiliary device (display unit) is mounted on the worker's body, the auxiliary device does not affect the design freedom of the assembly line. Therefore, the wire harness manufacturing system of this configuration can contribute to the improvement of the design freedom of the assembly line.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing system of a wire harness which can make an operator recognize the information which assists each operation | work which manufactures a wire harness as reliably as possible can be provided.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading a form for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings.

FIG. 1 is a perspective view of an operator and a work table for explaining a wire harness manufacturing system according to the present invention. FIG. 2 is a schematic plan view of a work table to which the wire harness manufacturing system according to the first embodiment is applied. FIG. 3 is a functional block diagram illustrating the configuration of the wire harness manufacturing system according to the first embodiment. FIG. 4 is a flowchart for explaining work assistance and work content collection by the wire harness manufacturing system according to the first embodiment. FIG. 5 is a diagram showing guidance display during the electric wire holding operation, and FIGS. 5A to 5H are schematic diagrams of images viewed from the viewpoint of the operator. FIG. 6 is a diagram showing guidance display during assembly work in which a wire is wound with tape, and FIGS. 6A to 6F are schematic diagrams of images viewed from the viewpoint of the operator. is there. FIG. 7 is a functional block diagram for explaining the configuration of a wire harness manufacturing system according to a modification of the first embodiment. FIG. 8 is a flowchart for explaining work assistance and work content collection by the wire harness manufacturing system according to the modification of the first embodiment. FIG. 9 is a diagram showing guidance display during assembly work in which a terminal is inserted into the cavity of the connector. FIGS. 9A to 9D are schematic views of images viewed from the viewpoint of the operator. FIG. FIG. 10 is a schematic plan view of a work table to which the wire harness manufacturing system according to the second embodiment is applied. FIG. 11 is a functional block diagram for explaining the configuration of the wire harness manufacturing system according to the second embodiment. FIG. 12 is a flowchart for explaining work assistance and work content collection by the wire harness manufacturing system according to the second embodiment. FIG. 13 is a diagram showing guidance display during the electric wire holding operation, and FIGS. 13A to 13H are schematic diagrams of images viewed from the viewpoint of the operator. FIG. 14 is a functional block diagram illustrating a configuration of a wire harness manufacturing system according to a modification of the second embodiment. FIG. 15 is a flowchart for explaining work assistance and work content collection by the wire harness manufacturing system according to the modification of the second embodiment. FIG. 16 is a diagram showing guidance display during assembly work in which a terminal is inserted into the cavity of the connector, and FIGS. 16 (a) to 16 (d) are schematic diagrams of images viewed from the viewpoint of the operator. FIG.

  Hereinafter, a wire harness manufacturing system according to an embodiment of the present invention will be described with reference to the drawings.

<First Embodiment>
First, the manufacturing system of the wire harness which concerns on 1st Embodiment is demonstrated.
As shown in FIGS. 1 and 2, the wire harness manufacturing system according to the first embodiment includes a work table 10 and a head mounted display (auxiliary device) 20. This wire harness manufacturing system is a system that assists various operations by the worker S on the work table 10 using AR (Augmented Reality) technology that displays information superimposed on a real landscape.

  The work table 10 includes various jigs such as a wire locking tool 11 and a connector holding tool 12 at an upper part thereof. The worker S causes the connector holder 12 to hold the connector 2 attached to the electric wire 1, and causes the wire locking tool 11 to lock the electric wire 1 constituting the wire harness W. Thereby, the electric wire 1 and the connector 2 are hold | maintained at the work table 10 so that predetermined | prescribed routing shape may be made. The worker S holds the electric wire 1 on the work table 10, attaches the tape around the electric wire 1 held on the work table 10, and attaches accessory parts such as a corrugated tube, a grommet, and a cap to the electric wire 1. Perform assembly work. The worker S manufactures the wire harness W by mounting the head mounted display 20 on the head and performing the above-described series of routing operations.

  The head mounted display 20 includes a display 21 that is a display unit and a camera 22 that is a photographing unit. The head mounted display 20 is an optically transmissive head-up display that can visually recognize the outside through the display 21. The display 21 displays instructions and the like necessary for the routing work. The worker S wearing the head mounted display 20 can view the display 21 and the external state at the same time. The camera 22 captures the point of sight of the worker S wearing the head mounted display 20.

Next, the configuration of the wire harness manufacturing system will be described.
As shown in FIG. 3, the wire harness manufacturing system 100 includes the head-mounted display 20, the mobile terminal 30, and the server 40 described above.

  The portable terminal 30 is a processing device carried by the worker S wearing the head mounted display 20. The portable terminal 30 includes an object identification unit 31, a guidance information acquisition unit 32, a guidance position correction unit 33, a guidance information display unit 34, and a moving image storage unit 35 such as an SD memory card. The head mounted display 20 and the portable terminal 30 can transmit and receive data by mutual communication.

  The server 40 is installed, for example, in a server room in a factory. The server 40 includes a guidance information unit 41 and a work performance information unit 42. The guidance information unit 41 stores guidance information data created in advance. In the work performance information section 42, work content data such as a moving image of work by the worker S is stored and collected. The portable terminal 30 and the server 40 can transmit and receive data by mutual communication.

  The wire harness manufacturing system 100 having the above-described configuration assists various operations such as a holding operation and an assembling operation by the worker S, and also performs various work contents such as a holding operation and an assembling operation by the worker S. It comes to collect.

  Next, work assistance and work content collection by the wire harness manufacturing system 100 will be described with reference to the flowchart shown in FIG. 4. In this example, a case where two connectors 2 are held by the connector holder 12 and a holding operation of locking the electric wire 1 between these connectors 2 to the wire stopper 11 will be described.

  When the worker S visually recognizes the work table 10 to perform the holding work on the work table 10, the camera 22 of the head mounted display 20 worn by the worker S is directed onto the work table 10. At this time, the worktable 10 is photographed by the camera 22, and the image signal is transmitted to the object identification unit 31 of the portable terminal 30 (step S01).

  The object identification unit 31 of the portable terminal 30 identifies the AR object in the image based on the image signal (step S02). Specifically, as shown in FIG. 5A, the object identification unit 31 uses the connector holder 12 on the work table 10 based on the image signal (the connector holder enclosed by the square in FIG. 5A). 12) is identified as an AR object.

  When the object identifying unit 31 of the portable terminal 30 identifies the connector holder 12 as an AR object, the object identifying unit 31 transmits an identification signal to the guidance information acquiring unit 32. The guidance information acquisition unit 32 transmits a guidance information acquisition signal to the guidance information unit 41 of the server 40 in order to acquire guidance information corresponding to the identified AR object. Thereby, in the server 40, the guidance information corresponding to the identified AR object is extracted from the guidance information unit 41, and the guidance information is transmitted to the guidance position correction unit 33 of the mobile terminal 30 (step S03).

  In the guidance position correction unit 33 to which the guidance information has been transmitted, position correction processing is performed (step S04). Specifically, the display angle and scale of the video to be displayed based on the guidance information are corrected so as to match the actual connector holder 12 and the wire locking tool 11. Then, the guidance information corrected by the guidance position correction unit 33 is transmitted from the guidance position correction unit 33 to the guidance information display unit 34.

  Thereafter, a guidance information display signal is transmitted from the guidance information display unit 34 to the head mounted display 20, and an image of guidance information is displayed on the display 21 of the head mounted display 20. Thereby, assistance to the worker S is performed (step S05). Specifically, as shown in FIG. 5 (b), the display 21 displays a circular mark surrounding the connector holder 12 that holds the connector 2, and a product number of the connector 2 that is held by each connector holder 12. A is displayed.

  The operator S can confirm the connector holder 12 that should hold the two connectors 2 by visually recognizing the round mark of the guidance display A. Furthermore, the worker S. By confirming the product number of the guide display A, it is possible to confirm which of the connector holders 12 should hold each connector 2.

  Next, as shown in FIG. 5 (c), a linear guide display B that prompts the user to route the electric wire 1 is displayed on the display 21. As shown in FIG. 5D, the guidance display B gradually extends from one connector holder 12 toward the wire locking tool 11. Thereafter, as shown in FIG. 5 (e), the guidance display B is folded back as shown in FIG. 5 (f) when it reaches the wire locking tool 11, and the other connector as shown in FIG. 5 (g). It gradually extends toward the holder 12 and reaches the other connector holder 12 as shown in FIG. Note that, as the speed of change for displaying the guidance display B, for example, a preset target work speed (work speed calculated from the tact time) is used.

  The worker S can confirm the routing procedure of the electric wire 1, the routing direction of the electric wire 1, and the routing speed by visually recognizing the guidance display B. Specifically, the worker S holds the connector 2 of the product number 522 on the one connector holder 12 on which the product number 522 is displayed by the guidance display A, and then proceeds to the wire locking tool 11 according to the guidance display B. Then, the electric wire 1 is routed, the electric wire 1 is locked by the wire locking tool 11 and turned back, and is routed toward the other connector holder 12 on which the product number 521 is displayed by the guidance display A. Then, the connector 2 of the product number 521 is held by the other connector holder 12 on which the product number 521 is displayed by the guidance display A.

  At this time, an image of work content such as a holding work by the worker S is taken by the camera 22 of the head mounted display 20 (step S07). The video to be taken may be a still image or a moving image.

  The image data of the work content is transmitted to the moving image storage unit 35 of the mobile terminal 30 and temporarily stored in the moving image storage unit 35 (step S08).

  The moving image data stored in the moving image storage unit 35 is periodically transmitted to the server 40 and stored in the work performance information unit 42 of the server 40 (step S09). As a result, the server 40 collects images obtained by photographing the work such as the holding work by the worker S with the camera 22.

  Next, a case where the wire harness manufacturing system 100 assists in an assembly operation including a tape winding operation for winding a tape for bundling the electric wires 1 around the electric wires 1 will be described with reference to FIG. 6.

  When the operator S holds the connector 2 on the connector holder 12 and locks the electric wire 1 on the wire lock 11, as shown in FIG. 6A, the connector holder 12 (see FIG. 6 (a) is identified as an AR object, and a guide information image for tape winding work is displayed on the display 21 of the head mounted display 20. This display is started, for example, when the operator S operates a button or the like provided on the head mounted display 20 or the like to transmit a signal for assisting the next work process to the portable terminal 30. Also good.

  Specifically, on the display 21, a broken line and characters indicating the winding start position and winding end position of the tape T wound around the electric wire 1, and a character indicating the winding pitch length P of the tape T wound around the electric wire 1 and A guidance display C such as a number is displayed.

  The operator S can confirm the winding start position and the winding end position of the tape T around the electric wire 1 by visually recognizing the guidance display C. Furthermore, the operator S can confirm the winding pitch length P of the tape T.

  Next, as shown in FIG. 6B, the display 21 displays a guidance display D including an image of the tape T wound around the electric wire 1. The guidance display D is displayed from the winding start position, gradually extends from the winding start position to the winding end position as shown in FIG. 6 (c), and reaches the winding end position as shown in FIG. 6 (f). Extend. Furthermore, the guidance display D is an image in which the winding direction of the tape T and the overlap amount at the time of winding can be visually confirmed. Note that the speed of change for displaying the guidance display D is a preset target work speed, as described above.

  By visually recognizing the guidance display D, the operator S winds the tape T around the electric wire 1 from the winding start position to the winding end position with the specified winding direction and winding pitch length P.

  As described above, according to the wire harness manufacturing system 100 according to the first embodiment, there is information for assisting each operation between the worker S and the work table 10 and in the field of view of the worker S. Since the information is displayed, the information is not hidden by a jig or the like on the work table 10 as compared with the conventional system (a method of projecting information from the back side of the work table). Furthermore, since the information is displayed in a display form along the wiring shape of the electric wire 1 and a display form that is different for each type of accessory part, the operator S can more reliably recognize the work to be performed.

  Therefore, the wire harness manufacturing system 100 according to the first embodiment can make the worker S recognize the information for assisting each operation of manufacturing the wire harness W as reliably as possible.

  Further, when the worker S performs the holding work, the worker S can easily form the target routing shape by holding the electric wire 1 in a jig such as the wire locking tool 11 in the order shown in the guidance displays A and B. The electric wire 1 can be held. Furthermore, when performing the assembling work, the operator S can easily perform the tape winding as designed by winding the tape T as shown in the guidance displays C and D. Therefore, workability of wire harness production can be improved.

  For work that does not require much attention to the procedure during assembly, such as assembly work that attaches accessories such as corrugated tubes, grommets, and caps, it is not a display that gradually displays as a guidance display. A display that displays instantaneously can be used. As a result, it is possible to prompt the worker S to quickly confirm the assembly location of the accessory parts.

  Furthermore, in order to collect the image of the content of the work performed by the worker S in the work result information unit 42 which is a collection unit, the work result information unit 42 does not depend on the worker S based on the image of each work collected. The workability of wire harness production can be improved, for example, by identifying work with low work efficiency and improving work procedures.

  By the way, in the conventional system, since it is necessary to install an apparatus (projector) for projecting an image on the back side of the work table, the design freedom of the assembly line may be lowered. However, in the wire harness manufacturing system 100, since the head mounted display 20 including the display 21 is attached to the body of the worker S, there is no influence on the design freedom of the assembly line. Therefore, an assembly line with a higher degree of freedom can be designed.

<Modification of First Embodiment>
Next, a modification of the wire harness manufacturing system 100 according to the first embodiment will be described.

  As shown in FIG. 7, in the wire harness manufacturing system 100 </ b> A according to the modification of the first embodiment, the mobile terminal 30 includes a cavity position information acquisition unit 36, and the server 40 includes a cavity position information unit 43.

  The wire harness manufacturing system 100 </ b> A assists in an assembling operation in which a terminal is inserted into the connector 2 held on the work table 10. Furthermore, the work content of the worker S is also collected in the wire harness manufacturing system 100A.

  Next, work assistance and work content collection by the wire harness manufacturing system 100A will be described with reference to the flowchart shown in FIG. In this example, a case will be described in which a terminal connected to the end of the electric wire 1 is inserted into a predetermined cavity of the connector 2 held by the connector holder 12 and attached.

  When the worker S visually recognizes the work table 10 in which the connector 2 is held by the connector holder 12 in order to perform the assembling work on the work table 10, the camera 22 of the head mounted display 20 worn by the worker S is displayed. Directed on the workbench 10. Then, the workbench 10 is imaged by the camera 22, and the image signal is transmitted to the object identification unit 31 of the portable terminal 30 (step S11).

  The object identification unit 31 of the portable terminal 30 identifies the AR object in the image based on the image signal (step S12). Specifically, as shown in FIG. 9A, the object identification unit 31 is based on the image signal, and the connector 2 held by the connector holder 12 on the work table 10 (the square in FIG. 9A). 2) is identified as an AR object. The connector 2 includes a resin connector housing 4 having a plurality of cavities 3 which are terminal accommodating chambers.

  The object identification unit 31 of the portable terminal 30 identifies the connector 2 as an AR object, determines the type of the connector 2, the position of the cavity 3, and the angle of the connector housing 4 based on the external shape of the connector 2, and obtains guidance information An identification signal is transmitted to the unit 32. The guidance information acquisition unit 32 transmits a guidance information acquisition signal to the guidance information unit 41 of the server 40 in order to acquire guidance information corresponding to the connector 2 that is the identified AR object. In the server 40, the guidance information corresponding to the connector 2 that is the identified AR object is extracted from the guidance information unit 41, and the guidance information is transmitted to the guidance position correction unit 33 of the portable terminal 30 (step S13).

  Further, the object identification unit 31 of the mobile terminal 30 transmits an identification signal to the cavity position information acquisition unit 36. The cavity position information acquisition unit 36 transmits to the cavity position information unit 43 of the server 40 in order to acquire position information of the cavity 3 to be guided to insert a terminal with respect to a preset reference point of the connector 2 that is an AR object. A position information acquisition signal is transmitted. In the server 40, the position information of the cavity 3 to be guided by the connector 2 is extracted from the cavity position information section 43, and the position information is transmitted to the guide position correction section 33 of the mobile terminal 30 (step S14).

  In the guidance position correction unit 33 to which the guidance information and the position information are transmitted, a position correction process is performed (step S15). Specifically, the display angle and scale of the video to be displayed based on the guidance information and the position information are corrected so as to match the actual connector 2 that is the identified AR object. Then, the guidance information and the position information corrected by the guidance position correction unit 33 are transmitted from the guidance position correction unit 33 to the guidance information display unit 34.

  A guidance information display signal is transmitted from the guidance information display unit 34 to the head mounted display 20, and an image of the guidance information is displayed on the display 21 of the head mounted display 20 to assist the worker S (step S16). Specifically, as shown in FIG. 9B, the display 21 displays a dotted guide display E so as to overlap the cavity 3 into which the terminal is to be inserted. The guidance display E once disappears as shown in FIG. 9C, and then is displayed again as shown in FIG. Thereby, the guidance display E blinks and is displayed at a position overlapping the cavity 3 in which the terminal is to be inserted.

  The worker S visually confirms the guidance display E to confirm in which cavity 3 of the connector housing 4 the terminal is to be inserted, and inserts and installs the terminal in the confirmed cavity 3.

  In addition, it is preferable to match | combine the display color of the guidance display E with the coating | coated color of the electric wire 1 to which the terminal inserted in the target cavity 3 was connected. Thereby, the terminal connected to the electric wire 1 having the same covering color as the display color of the guidance display E can be accurately guided to the target cavity 3 and inserted into the operator S.

  An image of work contents such as assembly work by the worker S is taken by the camera 22 of the head mounted display 20 (step S17).

  The image data including the moving image of the work content is transmitted to the moving image storage unit 35 of the mobile terminal 30 and temporarily stored in the moving image storage unit 35 (step S18).

  The moving image data stored in the moving image storage unit 35 is periodically transmitted to the server 40 and stored in the work performance information unit 42 of the server 40 (step S19). Thereby, the server 40 collects images obtained by photographing the work such as the assembly work by the worker S with the camera 22.

  As described above, according to the wire harness manufacturing system 100A according to the modified example of the first embodiment, when the assembling work is performed, the terminal is connected to the cavity 3 that is the terminal accommodating chamber as shown in the guidance display E. By inserting, an electric wire with a terminal as designed can be easily manufactured.

Second Embodiment
Next, a wire harness manufacturing system according to a second embodiment will be described. In addition, about the same component as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 10, the AR marker M is attached to the work table 10 in the wire harness manufacturing system according to the second embodiment. These AR markers M are arranged in the vicinity of various jigs such as the wire locking tool 11 and the connector holder 12.

  As illustrated in FIG. 11, the wire harness manufacturing system 200 according to the second embodiment is different from the wire harness manufacturing system 100 according to the first embodiment in the configuration of the mobile terminal 30. Specifically, the mobile terminal 30 includes an AR marker identification unit 31 </ b> A instead of the object identification unit 31.

  Next, work assistance and work content collection by the wire harness manufacturing system 200 will be described with reference to the flowchart shown in FIG. In this example, a case where two connectors 2 are held by the connector holder 12 and a holding operation of locking the electric wire 1 between these connectors 2 to the wire stopper 11 will be described.

  When the worker S visually recognizes the work table 10 to perform the holding work on the work table 10, the camera 22 of the head mounted display 20 worn by the worker S is directed onto the work table 10. Then, the workbench 10 is imaged by the camera 22, and the image signal is transmitted to the object identification unit 31 of the portable terminal 30 (step S21).

  The AR marker identification unit 31A of the portable terminal 30 identifies the AR marker M in the image based on the image signal (step S22). Specifically, as shown in FIG. 13A, the AR marker identification unit 31A is based on the image signal, and the AR marker M in the vicinity of the connector holder 12 on the work table 10 (the square in FIG. 13A). Identify the AR marker M) enclosed in brackets.

  When the AR marker identifying unit 31A of the mobile terminal 30 identifies the AR marker M, the AR marker identifying unit 31A transmits an identification signal to the guidance information acquiring unit 32. The guidance information acquisition unit 32 transmits a guidance information acquisition signal to the guidance information unit 41 of the server 40 in order to acquire guidance information corresponding to the identified AR marker M. In the server 40, the guidance information corresponding to the identified AR marker is extracted from the guidance information unit 41, and the guidance information is transmitted to the guidance position correction unit 33 of the mobile terminal 30 (step S23).

  In the guidance position correction unit 33 to which the guidance information is transmitted, position correction processing is performed (step S24). Specifically, the display angle and scale of the image displayed based on the guidance information are corrected so as to match the actual connector holder 12 and the wire locking tool 11. The guidance information corrected by the guidance position correction unit 33 is transmitted from the guidance position correction unit 33 to the guidance information display unit 34.

  A guidance information display signal is transmitted from the guidance information display unit 34 to the head mounted display 20, and an image of the guidance information is displayed on the display 21 of the head mounted display 20 to assist the worker S (step S25). Specifically, as shown in FIG. 13 (b), the display 21 displays a circular mark surrounding the connector holder 12 that holds the connector 2 and the product number of the connector 2 that is held by each connector holder 12. F is displayed.

  The worker S can confirm the connector holder 12 that holds the two connectors 2 by visually recognizing the round mark of the guidance display F. Furthermore, the operator S can confirm which of the connector holders 12 should hold each connector 2 by confirming the product number of the guidance display F.

  Next, as shown in FIG. 13C, a linear guidance display G that prompts the user to route the electric wire 1 is displayed on the display 21. As shown in FIG. 13 (d), the guide display G gradually extends from one connector holder 12 toward the wire locking tool 11. Thereafter, when the guide display G reaches the wire locking tool 11 as shown in FIG. 13 (e), it is folded back as shown in FIG. 13 (f), and the other connector is held as shown in FIG. 13 (g). It gradually extends toward the tool 12 and reaches the other connector holder 12 as shown in FIG. It should be noted that the speed of change for displaying the guidance display G is a preset target work speed.

  The worker S can confirm the routing procedure of the wire 1, the routing direction and the routing speed of the wire 1 by visually recognizing the guidance display G. Specifically, the worker S holds the connector 2 of the product number 522 on one connector holder 12 on which the product number 522 is displayed by the guidance display F, and then moves toward the wire locking tool 11 according to the guidance display G. Then, the electric wire 1 is routed, the electric wire 1 is locked by the wire locking tool 11 and turned back, and is routed toward the other connector holder 12 on which the product number 521 is displayed by the guidance display F. Then, the connector 2 of the product number 521 is held by the other connector holder 12 on which the product number 521 is displayed by the guidance display F.

  An image of work content such as holding work by the worker S is taken by the camera 22 of the head mounted display 20 (step S27).

  The image data including the moving image of the work content is transmitted to the moving image storage unit 35 of the mobile terminal 30 and temporarily stored in the moving image storage unit 35 (step S28).

  The moving image data stored in the moving image storage unit 35 is periodically transmitted to the server 40 and stored in the work performance information unit 42 of the server 40 (step S29). Thereby, the server 40 collects images obtained by photographing the work such as the holding work by the worker S with the camera 22.

  Thus, also in the case of the wire harness manufacturing system 200 according to the second embodiment, information for assisting each work is displayed between the worker S and the work table 10 and in the field of view of the worker S. Therefore, compared to the conventional system (a method for projecting information from the back side of the work table), the information is not hidden by a jig or the like on the work table 10. Furthermore, since the information is displayed in a display form along the wiring shape of the electric wire 1 and a display form that is different for each type of accessory part, the operator S can more reliably recognize the work to be performed.

  Therefore, the wire harness manufacturing system 200 according to the second embodiment can make the worker S recognize the information for assisting each operation of manufacturing the wire harness W as reliably as possible.

  Furthermore, the worker S can easily hold the electric wire 1 so as to form the target routing shape by performing the work according to the guidance display when performing the holding work or the assembling work, and is easily attached as designed. Parts can be assembled. Therefore, workability of wire harness production can be improved.

<Modification of Second Embodiment>
Next, a modification of the wire harness manufacturing system 200 according to the second embodiment will be described.

  As shown in FIG. 14, in the wire harness manufacturing system 200 </ b> A according to the modification of the second embodiment, the mobile terminal 30 includes a cavity position information acquisition unit 36, and the server 40 includes a cavity position information unit 43.

  The wire harness manufacturing system 200 </ b> A assists the assembling work of inserting and attaching the terminals to the connector 2 held on the work table 10. Also, in the wire harness manufacturing system 200A, the work contents of the worker S are collected.

  Next, work assistance and work content collection by the wire harness manufacturing system 200A will be described with reference to the flowchart shown in FIG. In this example, a case will be described in which a terminal connected to the end of the electric wire 1 is inserted into a predetermined cavity of the connector 2 held by the connector holder 12 and attached.

  When the worker S visually recognizes the work table 10 in which the connector 2 is held by the connector holder 12 in order to perform the assembling work on the work table 10, the camera 22 of the head mounted display 20 worn by the worker S is displayed. Directed on the workbench 10. Then, the worktable 10 is imaged by the camera 22, and the image signal is transmitted to the AR marker identifying unit 31A of the portable terminal 30 (step S31).

  The AR marker identification unit 31A of the portable terminal 30 identifies the AR marker M in the image based on the image signal (step S32). Specifically, as shown in FIG. 16 (a), the AR marker identification unit 31A is based on the image signal, and the AR marker M (see FIG. 16 (A)) attached to the vicinity of the connector holder 12 on the work table 10. Identify the AR marker M) enclosed in the box in a).

  The AR marker identification unit 31A of the mobile terminal 30 identifies the AR marker M, determines the type of the connector 2 held by the connector holder 12, the position of the cavity 3, and the angle of the connector housing 4, and guide information acquisition unit 32 transmits an identification signal. The guidance information acquisition unit 32 transmits a guidance information acquisition signal to the guidance information unit 41 of the server 40 in order to acquire guidance information corresponding to the identified AR marker M. In the server 40, the guidance information corresponding to the identified AR marker M is extracted from the guidance information unit 41, and the guidance information is transmitted to the guidance position correction unit 33 of the mobile terminal 30 (step S33).

  Furthermore, the AR marker identification unit 31 </ b> A of the portable terminal 30 transmits an identification signal to the cavity position information acquisition unit 36. The cavity position information acquisition unit 36 sends a position information acquisition signal to the cavity position information unit 43 of the server 40 in order to acquire position information of the cavity 3 to be guided to insert a terminal with respect to a preset reference point of the connector 2. Send. In the server 40, the position information of the cavity 3 to be guided by the connector 2 is extracted from the cavity position information section 43, and the position information is transmitted to the guide position correction section 33 of the portable terminal 30 (step S34).

  In the guidance position correction unit 33 to which the guidance information and the position information are transmitted, a position correction process is performed (step S35). Specifically, the display angle and scale of the video to be displayed based on the guidance information and the position information are corrected so as to match the actual connector 2. Then, the guidance information and the position information corrected by the guidance position correction unit 33 are transmitted from the guidance position correction unit 33 to the guidance information display unit 34.

  A guidance information display signal is transmitted from the guidance information display unit 34 to the head mounted display 20, and an image of guidance information is displayed on the display 21 of the head mounted display 20, and assistance for the worker S is performed (step S36).

  Specifically, as shown in FIG. 16B, a dotted guide display H is displayed on the display 21 so as to overlap the cavity 3 into which the terminal is to be inserted. As shown in FIG. 16 (c), the guidance display H once disappears, and then is displayed again as shown in FIG. 16 (d). Thereby, the guidance display H is displayed blinking at a position overlapping the cavity 3 into which the terminal is to be inserted.

  The worker S visually confirms the guidance display H to confirm in which cavity 3 of the connector housing 4 the terminal is to be inserted, and inserts and installs the terminal in the confirmed cavity 3.

  In addition, it is preferable to match | combine the display color of the induction | guidance | derivation display H with the coating color of the electric wire 1 to which the terminal inserted in the object cavity 3 was connected. In this way, the terminal connected to the wire 1 having the same covering color as the display color of the guidance display H can be accurately guided to the target cavity 3 and inserted into the worker S.

  An image of work contents such as assembly work by the worker S is taken by the camera 22 of the head mounted display 20 (step S37).

  The image data composed of the moving image of the work content is transmitted to the moving image storage unit 35 of the portable terminal 30 and temporarily stored in the moving image storage unit 35 (step S38).

  The moving image data stored in the moving image storage unit 35 is periodically transmitted to the server 40 and stored in the work performance information unit 42 of the server 40 (step S39). Thereby, the server 40 collects images obtained by photographing the work such as the assembly work by the worker S with the camera 22.

  As described above, according to the wire harness manufacturing system 200A according to the modification of the second embodiment, when the assembly work is performed, the terminal is inserted into the cavity 3 that is the terminal accommodating chamber as indicated by the guidance display H. If it is, the electric wire with a terminal as designed can be manufactured easily.

  In the wire harness manufacturing systems 100, 100A, 200, and 200A, when the work of the worker S has an erroneous work such as a wrong arrangement or wrong assembly, the guidance display and the actual work are greatly different. Then, a warning indicating that the work is erroneous is displayed on the display 21. Thereby, the erroneous work by the worker S can be suppressed.

  Further, for example, the display 21 may display a stereoscopic image of an actual accessory part such as a tape T or a corrugated tube assembled to the electric wire 1 or the like. In this way, it is possible to make the worker S visually and easily recognize the accessory part assembled to the electric wire 1.

  Further, the display 21 may display a display indicating a jig that is not used among jigs such as the wire locking tool 11 and the connector holder 12 on the work table 10 and a display indicating a jig that needs to be replaced. .

  Further, the display 21 may display a message for instructing the work content and work procedure, the name of the accessory part to be assembled, etc. in addition to the display of the image.

  Note that the work table 10 may be provided with position information including a pattern or a drawing for identifying the position of an image captured by the camera 22. Thereby, based on the position information of the workbench 10, the position photographed by the camera 22 can be accurately specified, and the guidance information at that position can be quickly extracted.

  Furthermore, a switch for recognizing the end of the work may be provided on the portable terminal 30 or the like, and the worker S may be operated when the work is finished. Further, a mark for recognizing the end of work may be attached to the work table 10 or a jig, and the end of work may be recognized by identifying this mark.

  When a plurality of workers S work at the same time, a unique ID is assigned to the portable terminal 30 worn by each worker S to distinguish them. In this way, guidance information can be provided to each worker S without confusion.

<Other aspects>
In addition, this invention is not limited to said each embodiment, A various modification is employable within the scope of the present invention. For example, the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like can be made as appropriate. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, in order to manage the work by a plurality of workers S, information on the work time of each worker S is collected, and based on the collected work time information, the work of each step by the worker S is improved. It is good also as a system which added the work management function utilized for.

  Here, a system to which a work management function for managing the work of the worker S is added will be described. This system includes an RFID (Radio Frequency Identifier) tag carried by each worker S, a receiving unit including an antenna provided for each process in the production line, and a collecting unit that collects reception data from the receiving unit. ing.

  In this system, based on the strength of the signal from the RFID tag received by the receiving unit of the production line, the worker S determines which process the receiving unit is working in, and stays in the vicinity of the receiving unit. The time that is collected is collected by the collection unit. And let the time collected in this collection part be work time which each worker S performed in the process.

  After the end of the working hours of the worker S, the system adds up the working time of each worker S and the working time in each process of each worker S. Furthermore, the system collects the results of operation of each machine in the production line, the number of wire harnesses W produced, and the like, and creates a daily report for each worker S.

  Thus, according to the system to which the work management function is added, the daily report can be created by automatically counting work time information such as how many hours of work the worker S has performed in the production line. . As a result, it is possible to quickly and accurately perform process improvement activities by cost accounting and grasping efficiency, and it is possible to reduce manufacturing costs and improve productivity.

  Furthermore, the determination result of which process the worker S is working in near the receiving unit may be used for improving the accuracy of object identification or the like on the portable terminal 30 described above. Thereby, a more accurate guidance display can be provided to the worker S.

Here, the features of the embodiment of the above-described wire harness manufacturing system according to the present invention are summarized and listed in the following (1) to (4), respectively.
(1)
A manufacturing system of a wire harness (W) having an electric wire (1) and a plurality of accessory parts (2),
An operator (S) performs at least one of a holding operation for holding the electric wire (1) so as to form a predetermined wiring shape and an assembling operation for assembling the electric wire (1) and the plurality of accessory parts (2). The holding work and the assembling work are assisted between the work table (10) to be performed and the worker (S) and the work table (10) in the field of view of the worker (S). An auxiliary device (20) for displaying information,
The auxiliary device (20)
A photographing unit (22) for photographing the workbench (10), and the information determined based on the image photographed by the photographing unit (22) according to the display form or the accessory (2 And a display unit (21) for displaying in a different display form for each type of
Wire harness manufacturing system.
(2)
In the manufacturing system according to (1) above,
The auxiliary device (20)
As the information for assisting the holding operation, a plurality of jigs (11, 12) arranged on the work table (10) corresponding to the routing shape are arranged in the order of holding the electric wire (1). We perform guidance display (A, B) extending so as to connect,
As the information for assisting the assembly work, when the accessory part (2) is a connector housing (4) having a plurality of terminal accommodating chambers (3), the terminal accommodating chamber (3) into which a terminal is to be inserted. ), And when the accessory is a tape (T) for bundling the electric wire (1), a position where the tape (T) is wound and a winding pitch length (P) of the tape (T) ) To display guidance (C, D).
Wire harness manufacturing system.
(3)
In the manufacturing system according to (1) or (2) above,
A collecting unit (42) for collecting images obtained by photographing the holding operation and the assembling operation by the photographing unit (22);
Wire harness manufacturing system.
(4)
In the manufacturing system according to any one of (1) to (3) above,
The auxiliary device (20)
It is mounted on the body of the worker (S) so that the display unit (21) is positioned on the line of sight of the worker (S).
Wire harness manufacturing system.

1 Wire 2 Connector (Accessory)
3 Cavity (terminal accommodation chamber)
4 Connector housing 10 Working table 11 Wire locking tool (jig)
12 Connector holder (jig)
20 Head mounted display (auxiliary device)
21 Display (display unit)
22 Camera (shooting unit)
42 Work results information section (collection section)
100, 100A, 200, 200A Wire harness manufacturing system A, B, C, D, E, F, G, H Guide display S Worker P Pitch length T Tape (accessory)
W wire harness

Claims (4)

A wire harness manufacturing system having an electric wire and a plurality of accessory parts,
A workbench for an operator to perform at least one of a holding operation for holding the electric wire so as to form a predetermined wiring shape and an assembling operation for assembling the electric wire and the plurality of accessory parts, the operator, An auxiliary device that displays information for assisting the holding work and the assembly work between the work table and the field of view of the worker;
The auxiliary device is
An image capturing unit that captures the work table and the information determined based on the image captured by the image capturing unit are displayed in a display form along the routing shape or in a different display form for each type of the accessory part. A display unit;
Wire harness manufacturing system. The manufacturing system according to claim 1,
The auxiliary device is
As the information for assisting the holding work, performing a guidance display extending so as to connect a plurality of jigs arranged on the workbench corresponding to the routing shape in the order of holding the electric wire,
As the information for assisting the assembling work, when the accessory is a connector housing having a plurality of terminal accommodating chambers, a guidance display representing the terminal accommodating chamber into which a terminal is to be inserted is performed. In the case of a tape that bundles the electric wires, a guidance display indicating a position where the tape is wound and a winding pitch length of the tape is performed.
Wire harness manufacturing system. In the manufacturing system according to claim 1 or 2,
A collecting unit for collecting images obtained by photographing the holding work and the assembling work by the photographing unit;
Wire harness manufacturing system. In the manufacturing system according to any one of claims 1 to 3,
The auxiliary device is
Attached to the worker's body so that the display unit is positioned on the operator's line of sight,
Wire harness manufacturing system.

Images